Code

Merge branch 'maint'
[git.git] / gitweb / gitweb.perl
1 #!/usr/bin/perl
3 # gitweb - simple web interface to track changes in git repositories
4 #
5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
6 # (C) 2005, Christian Gierke
7 #
8 # This program is licensed under the GPLv2
10 use strict;
11 use warnings;
12 use CGI qw(:standard :escapeHTML -nosticky);
13 use CGI::Util qw(unescape);
14 use CGI::Carp qw(fatalsToBrowser);
15 use Encode;
16 use Fcntl ':mode';
17 use File::Find qw();
18 use File::Basename qw(basename);
19 binmode STDOUT, ':utf8';
21 BEGIN {
22         CGI->compile() if $ENV{'MOD_PERL'};
23 }
25 our $cgi = new CGI;
26 our $version = "++GIT_VERSION++";
27 our $my_url = $cgi->url();
28 our $my_uri = $cgi->url(-absolute => 1);
30 # core git executable to use
31 # this can just be "git" if your webserver has a sensible PATH
32 our $GIT = "++GIT_BINDIR++/git";
34 # absolute fs-path which will be prepended to the project path
35 #our $projectroot = "/pub/scm";
36 our $projectroot = "++GITWEB_PROJECTROOT++";
38 # fs traversing limit for getting project list
39 # the number is relative to the projectroot
40 our $project_maxdepth = "++GITWEB_PROJECT_MAXDEPTH++";
42 # target of the home link on top of all pages
43 our $home_link = $my_uri || "/";
45 # string of the home link on top of all pages
46 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
48 # name of your site or organization to appear in page titles
49 # replace this with something more descriptive for clearer bookmarks
50 our $site_name = "++GITWEB_SITENAME++"
51                  || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
53 # filename of html text to include at top of each page
54 our $site_header = "++GITWEB_SITE_HEADER++";
55 # html text to include at home page
56 our $home_text = "++GITWEB_HOMETEXT++";
57 # filename of html text to include at bottom of each page
58 our $site_footer = "++GITWEB_SITE_FOOTER++";
60 # URI of stylesheets
61 our @stylesheets = ("++GITWEB_CSS++");
62 # URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
63 our $stylesheet = undef;
64 # URI of GIT logo (72x27 size)
65 our $logo = "++GITWEB_LOGO++";
66 # URI of GIT favicon, assumed to be image/png type
67 our $favicon = "++GITWEB_FAVICON++";
69 # URI and label (title) of GIT logo link
70 #our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
71 #our $logo_label = "git documentation";
72 our $logo_url = "http://git.or.cz/";
73 our $logo_label = "git homepage";
75 # source of projects list
76 our $projects_list = "++GITWEB_LIST++";
78 # the width (in characters) of the projects list "Description" column
79 our $projects_list_description_width = 25;
81 # default order of projects list
82 # valid values are none, project, descr, owner, and age
83 our $default_projects_order = "project";
85 # show repository only if this file exists
86 # (only effective if this variable evaluates to true)
87 our $export_ok = "++GITWEB_EXPORT_OK++";
89 # only allow viewing of repositories also shown on the overview page
90 our $strict_export = "++GITWEB_STRICT_EXPORT++";
92 # list of git base URLs used for URL to where fetch project from,
93 # i.e. full URL is "$git_base_url/$project"
94 our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
96 # default blob_plain mimetype and default charset for text/plain blob
97 our $default_blob_plain_mimetype = 'text/plain';
98 our $default_text_plain_charset  = undef;
100 # file to use for guessing MIME types before trying /etc/mime.types
101 # (relative to the current git repository)
102 our $mimetypes_file = undef;
104 # assume this charset if line contains non-UTF-8 characters;
105 # it should be valid encoding (see Encoding::Supported(3pm) for list),
106 # for which encoding all byte sequences are valid, for example
107 # 'iso-8859-1' aka 'latin1' (it is decoded without checking, so it
108 # could be even 'utf-8' for the old behavior)
109 our $fallback_encoding = 'latin1';
111 # rename detection options for git-diff and git-diff-tree
112 # - default is '-M', with the cost proportional to
113 #   (number of removed files) * (number of new files).
114 # - more costly is '-C' (which implies '-M'), with the cost proportional to
115 #   (number of changed files + number of removed files) * (number of new files)
116 # - even more costly is '-C', '--find-copies-harder' with cost
117 #   (number of files in the original tree) * (number of new files)
118 # - one might want to include '-B' option, e.g. '-B', '-M'
119 our @diff_opts = ('-M'); # taken from git_commit
121 # information about snapshot formats that gitweb is capable of serving
122 our %known_snapshot_formats = (
123         # name => {
124         #       'display' => display name,
125         #       'type' => mime type,
126         #       'suffix' => filename suffix,
127         #       'format' => --format for git-archive,
128         #       'compressor' => [compressor command and arguments]
129         #                       (array reference, optional)}
130         #
131         'tgz' => {
132                 'display' => 'tar.gz',
133                 'type' => 'application/x-gzip',
134                 'suffix' => '.tar.gz',
135                 'format' => 'tar',
136                 'compressor' => ['gzip']},
138         'tbz2' => {
139                 'display' => 'tar.bz2',
140                 'type' => 'application/x-bzip2',
141                 'suffix' => '.tar.bz2',
142                 'format' => 'tar',
143                 'compressor' => ['bzip2']},
145         'zip' => {
146                 'display' => 'zip',
147                 'type' => 'application/x-zip',
148                 'suffix' => '.zip',
149                 'format' => 'zip'},
150 );
152 # Aliases so we understand old gitweb.snapshot values in repository
153 # configuration.
154 our %known_snapshot_format_aliases = (
155         'gzip'  => 'tgz',
156         'bzip2' => 'tbz2',
158         # backward compatibility: legacy gitweb config support
159         'x-gzip' => undef, 'gz' => undef,
160         'x-bzip2' => undef, 'bz2' => undef,
161         'x-zip' => undef, '' => undef,
162 );
164 # You define site-wide feature defaults here; override them with
165 # $GITWEB_CONFIG as necessary.
166 our %feature = (
167         # feature => {
168         #       'sub' => feature-sub (subroutine),
169         #       'override' => allow-override (boolean),
170         #       'default' => [ default options...] (array reference)}
171         #
172         # if feature is overridable (it means that allow-override has true value),
173         # then feature-sub will be called with default options as parameters;
174         # return value of feature-sub indicates if to enable specified feature
175         #
176         # if there is no 'sub' key (no feature-sub), then feature cannot be
177         # overriden
178         #
179         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
181         # Enable the 'blame' blob view, showing the last commit that modified
182         # each line in the file. This can be very CPU-intensive.
184         # To enable system wide have in $GITWEB_CONFIG
185         # $feature{'blame'}{'default'} = [1];
186         # To have project specific config enable override in $GITWEB_CONFIG
187         # $feature{'blame'}{'override'} = 1;
188         # and in project config gitweb.blame = 0|1;
189         'blame' => {
190                 'sub' => \&feature_blame,
191                 'override' => 0,
192                 'default' => [0]},
194         # Enable the 'snapshot' link, providing a compressed archive of any
195         # tree. This can potentially generate high traffic if you have large
196         # project.
198         # Value is a list of formats defined in %known_snapshot_formats that
199         # you wish to offer.
200         # To disable system wide have in $GITWEB_CONFIG
201         # $feature{'snapshot'}{'default'} = [];
202         # To have project specific config enable override in $GITWEB_CONFIG
203         # $feature{'snapshot'}{'override'} = 1;
204         # and in project config, a comma-separated list of formats or "none"
205         # to disable.  Example: gitweb.snapshot = tbz2,zip;
206         'snapshot' => {
207                 'sub' => \&feature_snapshot,
208                 'override' => 0,
209                 'default' => ['tgz']},
211         # Enable text search, which will list the commits which match author,
212         # committer or commit text to a given string.  Enabled by default.
213         # Project specific override is not supported.
214         'search' => {
215                 'override' => 0,
216                 'default' => [1]},
218         # Enable grep search, which will list the files in currently selected
219         # tree containing the given string. Enabled by default. This can be
220         # potentially CPU-intensive, of course.
222         # To enable system wide have in $GITWEB_CONFIG
223         # $feature{'grep'}{'default'} = [1];
224         # To have project specific config enable override in $GITWEB_CONFIG
225         # $feature{'grep'}{'override'} = 1;
226         # and in project config gitweb.grep = 0|1;
227         'grep' => {
228                 'override' => 0,
229                 'default' => [1]},
231         # Enable the pickaxe search, which will list the commits that modified
232         # a given string in a file. This can be practical and quite faster
233         # alternative to 'blame', but still potentially CPU-intensive.
235         # To enable system wide have in $GITWEB_CONFIG
236         # $feature{'pickaxe'}{'default'} = [1];
237         # To have project specific config enable override in $GITWEB_CONFIG
238         # $feature{'pickaxe'}{'override'} = 1;
239         # and in project config gitweb.pickaxe = 0|1;
240         'pickaxe' => {
241                 'sub' => \&feature_pickaxe,
242                 'override' => 0,
243                 'default' => [1]},
245         # Make gitweb use an alternative format of the URLs which can be
246         # more readable and natural-looking: project name is embedded
247         # directly in the path and the query string contains other
248         # auxiliary information. All gitweb installations recognize
249         # URL in either format; this configures in which formats gitweb
250         # generates links.
252         # To enable system wide have in $GITWEB_CONFIG
253         # $feature{'pathinfo'}{'default'} = [1];
254         # Project specific override is not supported.
256         # Note that you will need to change the default location of CSS,
257         # favicon, logo and possibly other files to an absolute URL. Also,
258         # if gitweb.cgi serves as your indexfile, you will need to force
259         # $my_uri to contain the script name in your $GITWEB_CONFIG.
260         'pathinfo' => {
261                 'override' => 0,
262                 'default' => [0]},
264         # Make gitweb consider projects in project root subdirectories
265         # to be forks of existing projects. Given project $projname.git,
266         # projects matching $projname/*.git will not be shown in the main
267         # projects list, instead a '+' mark will be added to $projname
268         # there and a 'forks' view will be enabled for the project, listing
269         # all the forks. If project list is taken from a file, forks have
270         # to be listed after the main project.
272         # To enable system wide have in $GITWEB_CONFIG
273         # $feature{'forks'}{'default'} = [1];
274         # Project specific override is not supported.
275         'forks' => {
276                 'override' => 0,
277                 'default' => [0]},
278 );
280 sub gitweb_check_feature {
281         my ($name) = @_;
282         return unless exists $feature{$name};
283         my ($sub, $override, @defaults) = (
284                 $feature{$name}{'sub'},
285                 $feature{$name}{'override'},
286                 @{$feature{$name}{'default'}});
287         if (!$override) { return @defaults; }
288         if (!defined $sub) {
289                 warn "feature $name is not overrideable";
290                 return @defaults;
291         }
292         return $sub->(@defaults);
295 sub feature_blame {
296         my ($val) = git_get_project_config('blame', '--bool');
298         if ($val eq 'true') {
299                 return 1;
300         } elsif ($val eq 'false') {
301                 return 0;
302         }
304         return $_[0];
307 sub feature_snapshot {
308         my (@fmts) = @_;
310         my ($val) = git_get_project_config('snapshot');
312         if ($val) {
313                 @fmts = ($val eq 'none' ? () : split /\s*[,\s]\s*/, $val);
314         }
316         return @fmts;
319 sub feature_grep {
320         my ($val) = git_get_project_config('grep', '--bool');
322         if ($val eq 'true') {
323                 return (1);
324         } elsif ($val eq 'false') {
325                 return (0);
326         }
328         return ($_[0]);
331 sub feature_pickaxe {
332         my ($val) = git_get_project_config('pickaxe', '--bool');
334         if ($val eq 'true') {
335                 return (1);
336         } elsif ($val eq 'false') {
337                 return (0);
338         }
340         return ($_[0]);
343 # checking HEAD file with -e is fragile if the repository was
344 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
345 # and then pruned.
346 sub check_head_link {
347         my ($dir) = @_;
348         my $headfile = "$dir/HEAD";
349         return ((-e $headfile) ||
350                 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
353 sub check_export_ok {
354         my ($dir) = @_;
355         return (check_head_link($dir) &&
356                 (!$export_ok || -e "$dir/$export_ok"));
359 # process alternate names for backward compatibility
360 # filter out unsupported (unknown) snapshot formats
361 sub filter_snapshot_fmts {
362         my @fmts = @_;
364         @fmts = map {
365                 exists $known_snapshot_format_aliases{$_} ?
366                        $known_snapshot_format_aliases{$_} : $_} @fmts;
367         @fmts = grep(exists $known_snapshot_formats{$_}, @fmts);
371 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
372 if (-e $GITWEB_CONFIG) {
373         do $GITWEB_CONFIG;
374 } else {
375         our $GITWEB_CONFIG_SYSTEM = $ENV{'GITWEB_CONFIG_SYSTEM'} || "++GITWEB_CONFIG_SYSTEM++";
376         do $GITWEB_CONFIG_SYSTEM if -e $GITWEB_CONFIG_SYSTEM;
379 # version of the core git binary
380 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
382 $projects_list ||= $projectroot;
384 # ======================================================================
385 # input validation and dispatch
386 our $action = $cgi->param('a');
387 if (defined $action) {
388         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
389                 die_error(undef, "Invalid action parameter");
390         }
393 # parameters which are pathnames
394 our $project = $cgi->param('p');
395 if (defined $project) {
396         if (!validate_pathname($project) ||
397             !(-d "$projectroot/$project") ||
398             !check_head_link("$projectroot/$project") ||
399             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
400             ($strict_export && !project_in_list($project))) {
401                 undef $project;
402                 die_error(undef, "No such project");
403         }
406 our $file_name = $cgi->param('f');
407 if (defined $file_name) {
408         if (!validate_pathname($file_name)) {
409                 die_error(undef, "Invalid file parameter");
410         }
413 our $file_parent = $cgi->param('fp');
414 if (defined $file_parent) {
415         if (!validate_pathname($file_parent)) {
416                 die_error(undef, "Invalid file parent parameter");
417         }
420 # parameters which are refnames
421 our $hash = $cgi->param('h');
422 if (defined $hash) {
423         if (!validate_refname($hash)) {
424                 die_error(undef, "Invalid hash parameter");
425         }
428 our $hash_parent = $cgi->param('hp');
429 if (defined $hash_parent) {
430         if (!validate_refname($hash_parent)) {
431                 die_error(undef, "Invalid hash parent parameter");
432         }
435 our $hash_base = $cgi->param('hb');
436 if (defined $hash_base) {
437         if (!validate_refname($hash_base)) {
438                 die_error(undef, "Invalid hash base parameter");
439         }
442 my %allowed_options = (
443         "--no-merges" => [ qw(rss atom log shortlog history) ],
444 );
446 our @extra_options = $cgi->param('opt');
447 if (defined @extra_options) {
448         foreach my $opt (@extra_options) {
449                 if (not exists $allowed_options{$opt}) {
450                         die_error(undef, "Invalid option parameter");
451                 }
452                 if (not grep(/^$action$/, @{$allowed_options{$opt}})) {
453                         die_error(undef, "Invalid option parameter for this action");
454                 }
455         }
458 our $hash_parent_base = $cgi->param('hpb');
459 if (defined $hash_parent_base) {
460         if (!validate_refname($hash_parent_base)) {
461                 die_error(undef, "Invalid hash parent base parameter");
462         }
465 # other parameters
466 our $page = $cgi->param('pg');
467 if (defined $page) {
468         if ($page =~ m/[^0-9]/) {
469                 die_error(undef, "Invalid page parameter");
470         }
473 our $searchtype = $cgi->param('st');
474 if (defined $searchtype) {
475         if ($searchtype =~ m/[^a-z]/) {
476                 die_error(undef, "Invalid searchtype parameter");
477         }
480 our $search_use_regexp = $cgi->param('sr');
482 our $searchtext = $cgi->param('s');
483 our $search_regexp;
484 if (defined $searchtext) {
485         if (length($searchtext) < 2) {
486                 die_error(undef, "At least two characters are required for search parameter");
487         }
488         $search_regexp = $search_use_regexp ? $searchtext : quotemeta $searchtext;
491 # now read PATH_INFO and use it as alternative to parameters
492 sub evaluate_path_info {
493         return if defined $project;
494         my $path_info = $ENV{"PATH_INFO"};
495         return if !$path_info;
496         $path_info =~ s,^/+,,;
497         return if !$path_info;
498         # find which part of PATH_INFO is project
499         $project = $path_info;
500         $project =~ s,/+$,,;
501         while ($project && !check_head_link("$projectroot/$project")) {
502                 $project =~ s,/*[^/]*$,,;
503         }
504         # validate project
505         $project = validate_pathname($project);
506         if (!$project ||
507             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
508             ($strict_export && !project_in_list($project))) {
509                 undef $project;
510                 return;
511         }
512         # do not change any parameters if an action is given using the query string
513         return if $action;
514         $path_info =~ s,^\Q$project\E/*,,;
515         my ($refname, $pathname) = split(/:/, $path_info, 2);
516         if (defined $pathname) {
517                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
518                 # we could use git_get_type(branch:pathname), but it needs $git_dir
519                 $pathname =~ s,^/+,,;
520                 if (!$pathname || substr($pathname, -1) eq "/") {
521                         $action  ||= "tree";
522                         $pathname =~ s,/$,,;
523                 } else {
524                         $action  ||= "blob_plain";
525                 }
526                 $hash_base ||= validate_refname($refname);
527                 $file_name ||= validate_pathname($pathname);
528         } elsif (defined $refname) {
529                 # we got "project.git/branch"
530                 $action ||= "shortlog";
531                 $hash   ||= validate_refname($refname);
532         }
534 evaluate_path_info();
536 # path to the current git repository
537 our $git_dir;
538 $git_dir = "$projectroot/$project" if $project;
540 # dispatch
541 my %actions = (
542         "blame" => \&git_blame2,
543         "blobdiff" => \&git_blobdiff,
544         "blobdiff_plain" => \&git_blobdiff_plain,
545         "blob" => \&git_blob,
546         "blob_plain" => \&git_blob_plain,
547         "commitdiff" => \&git_commitdiff,
548         "commitdiff_plain" => \&git_commitdiff_plain,
549         "commit" => \&git_commit,
550         "forks" => \&git_forks,
551         "heads" => \&git_heads,
552         "history" => \&git_history,
553         "log" => \&git_log,
554         "rss" => \&git_rss,
555         "atom" => \&git_atom,
556         "search" => \&git_search,
557         "search_help" => \&git_search_help,
558         "shortlog" => \&git_shortlog,
559         "summary" => \&git_summary,
560         "tag" => \&git_tag,
561         "tags" => \&git_tags,
562         "tree" => \&git_tree,
563         "snapshot" => \&git_snapshot,
564         "object" => \&git_object,
565         # those below don't need $project
566         "opml" => \&git_opml,
567         "project_list" => \&git_project_list,
568         "project_index" => \&git_project_index,
569 );
571 if (!defined $action) {
572         if (defined $hash) {
573                 $action = git_get_type($hash);
574         } elsif (defined $hash_base && defined $file_name) {
575                 $action = git_get_type("$hash_base:$file_name");
576         } elsif (defined $project) {
577                 $action = 'summary';
578         } else {
579                 $action = 'project_list';
580         }
582 if (!defined($actions{$action})) {
583         die_error(undef, "Unknown action");
585 if ($action !~ m/^(opml|project_list|project_index)$/ &&
586     !$project) {
587         die_error(undef, "Project needed");
589 $actions{$action}->();
590 exit;
592 ## ======================================================================
593 ## action links
595 sub href (%) {
596         my %params = @_;
597         # default is to use -absolute url() i.e. $my_uri
598         my $href = $params{-full} ? $my_url : $my_uri;
600         # XXX: Warning: If you touch this, check the search form for updating,
601         # too.
603         my @mapping = (
604                 project => "p",
605                 action => "a",
606                 file_name => "f",
607                 file_parent => "fp",
608                 hash => "h",
609                 hash_parent => "hp",
610                 hash_base => "hb",
611                 hash_parent_base => "hpb",
612                 page => "pg",
613                 order => "o",
614                 searchtext => "s",
615                 searchtype => "st",
616                 snapshot_format => "sf",
617                 extra_options => "opt",
618                 search_use_regexp => "sr",
619         );
620         my %mapping = @mapping;
622         $params{'project'} = $project unless exists $params{'project'};
624         if ($params{-replay}) {
625                 while (my ($name, $symbol) = each %mapping) {
626                         if (!exists $params{$name}) {
627                                 # to allow for multivalued params we use arrayref form
628                                 $params{$name} = [ $cgi->param($symbol) ];
629                         }
630                 }
631         }
633         my ($use_pathinfo) = gitweb_check_feature('pathinfo');
634         if ($use_pathinfo) {
635                 # use PATH_INFO for project name
636                 $href .= "/".esc_url($params{'project'}) if defined $params{'project'};
637                 delete $params{'project'};
639                 # Summary just uses the project path URL
640                 if (defined $params{'action'} && $params{'action'} eq 'summary') {
641                         delete $params{'action'};
642                 }
643         }
645         # now encode the parameters explicitly
646         my @result = ();
647         for (my $i = 0; $i < @mapping; $i += 2) {
648                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
649                 if (defined $params{$name}) {
650                         if (ref($params{$name}) eq "ARRAY") {
651                                 foreach my $par (@{$params{$name}}) {
652                                         push @result, $symbol . "=" . esc_param($par);
653                                 }
654                         } else {
655                                 push @result, $symbol . "=" . esc_param($params{$name});
656                         }
657                 }
658         }
659         $href .= "?" . join(';', @result) if scalar @result;
661         return $href;
665 ## ======================================================================
666 ## validation, quoting/unquoting and escaping
668 sub validate_pathname {
669         my $input = shift || return undef;
671         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
672         # at the beginning, at the end, and between slashes.
673         # also this catches doubled slashes
674         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
675                 return undef;
676         }
677         # no null characters
678         if ($input =~ m!\0!) {
679                 return undef;
680         }
681         return $input;
684 sub validate_refname {
685         my $input = shift || return undef;
687         # textual hashes are O.K.
688         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
689                 return $input;
690         }
691         # it must be correct pathname
692         $input = validate_pathname($input)
693                 or return undef;
694         # restrictions on ref name according to git-check-ref-format
695         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
696                 return undef;
697         }
698         return $input;
701 # decode sequences of octets in utf8 into Perl's internal form,
702 # which is utf-8 with utf8 flag set if needed.  gitweb writes out
703 # in utf-8 thanks to "binmode STDOUT, ':utf8'" at beginning
704 sub to_utf8 {
705         my $str = shift;
706         if (utf8::valid($str)) {
707                 utf8::decode($str);
708                 return $str;
709         } else {
710                 return decode($fallback_encoding, $str, Encode::FB_DEFAULT);
711         }
714 # quote unsafe chars, but keep the slash, even when it's not
715 # correct, but quoted slashes look too horrible in bookmarks
716 sub esc_param {
717         my $str = shift;
718         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
719         $str =~ s/\+/%2B/g;
720         $str =~ s/ /\+/g;
721         return $str;
724 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
725 sub esc_url {
726         my $str = shift;
727         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
728         $str =~ s/\+/%2B/g;
729         $str =~ s/ /\+/g;
730         return $str;
733 # replace invalid utf8 character with SUBSTITUTION sequence
734 sub esc_html ($;%) {
735         my $str = shift;
736         my %opts = @_;
738         $str = to_utf8($str);
739         $str = $cgi->escapeHTML($str);
740         if ($opts{'-nbsp'}) {
741                 $str =~ s/ /&nbsp;/g;
742         }
743         $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
744         return $str;
747 # quote control characters and escape filename to HTML
748 sub esc_path {
749         my $str = shift;
750         my %opts = @_;
752         $str = to_utf8($str);
753         $str = $cgi->escapeHTML($str);
754         if ($opts{'-nbsp'}) {
755                 $str =~ s/ /&nbsp;/g;
756         }
757         $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
758         return $str;
761 # Make control characters "printable", using character escape codes (CEC)
762 sub quot_cec {
763         my $cntrl = shift;
764         my %opts = @_;
765         my %es = ( # character escape codes, aka escape sequences
766                 "\t" => '\t',   # tab            (HT)
767                 "\n" => '\n',   # line feed      (LF)
768                 "\r" => '\r',   # carrige return (CR)
769                 "\f" => '\f',   # form feed      (FF)
770                 "\b" => '\b',   # backspace      (BS)
771                 "\a" => '\a',   # alarm (bell)   (BEL)
772                 "\e" => '\e',   # escape         (ESC)
773                 "\013" => '\v', # vertical tab   (VT)
774                 "\000" => '\0', # nul character  (NUL)
775         );
776         my $chr = ( (exists $es{$cntrl})
777                     ? $es{$cntrl}
778                     : sprintf('\%03o', ord($cntrl)) );
779         if ($opts{-nohtml}) {
780                 return $chr;
781         } else {
782                 return "<span class=\"cntrl\">$chr</span>";
783         }
786 # Alternatively use unicode control pictures codepoints,
787 # Unicode "printable representation" (PR)
788 sub quot_upr {
789         my $cntrl = shift;
790         my %opts = @_;
792         my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
793         if ($opts{-nohtml}) {
794                 return $chr;
795         } else {
796                 return "<span class=\"cntrl\">$chr</span>";
797         }
800 # git may return quoted and escaped filenames
801 sub unquote {
802         my $str = shift;
804         sub unq {
805                 my $seq = shift;
806                 my %es = ( # character escape codes, aka escape sequences
807                         't' => "\t",   # tab            (HT, TAB)
808                         'n' => "\n",   # newline        (NL)
809                         'r' => "\r",   # return         (CR)
810                         'f' => "\f",   # form feed      (FF)
811                         'b' => "\b",   # backspace      (BS)
812                         'a' => "\a",   # alarm (bell)   (BEL)
813                         'e' => "\e",   # escape         (ESC)
814                         'v' => "\013", # vertical tab   (VT)
815                 );
817                 if ($seq =~ m/^[0-7]{1,3}$/) {
818                         # octal char sequence
819                         return chr(oct($seq));
820                 } elsif (exists $es{$seq}) {
821                         # C escape sequence, aka character escape code
822                         return $es{$seq};
823                 }
824                 # quoted ordinary character
825                 return $seq;
826         }
828         if ($str =~ m/^"(.*)"$/) {
829                 # needs unquoting
830                 $str = $1;
831                 $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
832         }
833         return $str;
836 # escape tabs (convert tabs to spaces)
837 sub untabify {
838         my $line = shift;
840         while ((my $pos = index($line, "\t")) != -1) {
841                 if (my $count = (8 - ($pos % 8))) {
842                         my $spaces = ' ' x $count;
843                         $line =~ s/\t/$spaces/;
844                 }
845         }
847         return $line;
850 sub project_in_list {
851         my $project = shift;
852         my @list = git_get_projects_list();
853         return @list && scalar(grep { $_->{'path'} eq $project } @list);
856 ## ----------------------------------------------------------------------
857 ## HTML aware string manipulation
859 # Try to chop given string on a word boundary between position
860 # $len and $len+$add_len. If there is no word boundary there,
861 # chop at $len+$add_len. Do not chop if chopped part plus ellipsis
862 # (marking chopped part) would be longer than given string.
863 sub chop_str {
864         my $str = shift;
865         my $len = shift;
866         my $add_len = shift || 10;
867         my $where = shift || 'right'; # 'left' | 'center' | 'right'
869         # Make sure perl knows it is utf8 encoded so we don't
870         # cut in the middle of a utf8 multibyte char.
871         $str = to_utf8($str);
873         # allow only $len chars, but don't cut a word if it would fit in $add_len
874         # if it doesn't fit, cut it if it's still longer than the dots we would add
875         # remove chopped character entities entirely
877         # when chopping in the middle, distribute $len into left and right part
878         # return early if chopping wouldn't make string shorter
879         if ($where eq 'center') {
880                 return $str if ($len + 5 >= length($str)); # filler is length 5
881                 $len = int($len/2);
882         } else {
883                 return $str if ($len + 4 >= length($str)); # filler is length 4
884         }
886         # regexps: ending and beginning with word part up to $add_len
887         my $endre = qr/.{$len}\w{0,$add_len}/;
888         my $begre = qr/\w{0,$add_len}.{$len}/;
890         if ($where eq 'left') {
891                 $str =~ m/^(.*?)($begre)$/;
892                 my ($lead, $body) = ($1, $2);
893                 if (length($lead) > 4) {
894                         $body =~ s/^[^;]*;// if ($lead =~ m/&[^;]*$/);
895                         $lead = " ...";
896                 }
897                 return "$lead$body";
899         } elsif ($where eq 'center') {
900                 $str =~ m/^($endre)(.*)$/;
901                 my ($left, $str)  = ($1, $2);
902                 $str =~ m/^(.*?)($begre)$/;
903                 my ($mid, $right) = ($1, $2);
904                 if (length($mid) > 5) {
905                         $left  =~ s/&[^;]*$//;
906                         $right =~ s/^[^;]*;// if ($mid =~ m/&[^;]*$/);
907                         $mid = " ... ";
908                 }
909                 return "$left$mid$right";
911         } else {
912                 $str =~ m/^($endre)(.*)$/;
913                 my $body = $1;
914                 my $tail = $2;
915                 if (length($tail) > 4) {
916                         $body =~ s/&[^;]*$//;
917                         $tail = "... ";
918                 }
919                 return "$body$tail";
920         }
923 # takes the same arguments as chop_str, but also wraps a <span> around the
924 # result with a title attribute if it does get chopped. Additionally, the
925 # string is HTML-escaped.
926 sub chop_and_escape_str {
927         my ($str) = @_;
929         my $chopped = chop_str(@_);
930         if ($chopped eq $str) {
931                 return esc_html($chopped);
932         } else {
933                 $str =~ s/([[:cntrl:]])/?/g;
934                 return $cgi->span({-title=>$str}, esc_html($chopped));
935         }
938 ## ----------------------------------------------------------------------
939 ## functions returning short strings
941 # CSS class for given age value (in seconds)
942 sub age_class {
943         my $age = shift;
945         if (!defined $age) {
946                 return "noage";
947         } elsif ($age < 60*60*2) {
948                 return "age0";
949         } elsif ($age < 60*60*24*2) {
950                 return "age1";
951         } else {
952                 return "age2";
953         }
956 # convert age in seconds to "nn units ago" string
957 sub age_string {
958         my $age = shift;
959         my $age_str;
961         if ($age > 60*60*24*365*2) {
962                 $age_str = (int $age/60/60/24/365);
963                 $age_str .= " years ago";
964         } elsif ($age > 60*60*24*(365/12)*2) {
965                 $age_str = int $age/60/60/24/(365/12);
966                 $age_str .= " months ago";
967         } elsif ($age > 60*60*24*7*2) {
968                 $age_str = int $age/60/60/24/7;
969                 $age_str .= " weeks ago";
970         } elsif ($age > 60*60*24*2) {
971                 $age_str = int $age/60/60/24;
972                 $age_str .= " days ago";
973         } elsif ($age > 60*60*2) {
974                 $age_str = int $age/60/60;
975                 $age_str .= " hours ago";
976         } elsif ($age > 60*2) {
977                 $age_str = int $age/60;
978                 $age_str .= " min ago";
979         } elsif ($age > 2) {
980                 $age_str = int $age;
981                 $age_str .= " sec ago";
982         } else {
983                 $age_str .= " right now";
984         }
985         return $age_str;
988 use constant {
989         S_IFINVALID => 0030000,
990         S_IFGITLINK => 0160000,
991 };
993 # submodule/subproject, a commit object reference
994 sub S_ISGITLINK($) {
995         my $mode = shift;
997         return (($mode & S_IFMT) == S_IFGITLINK)
1000 # convert file mode in octal to symbolic file mode string
1001 sub mode_str {
1002         my $mode = oct shift;
1004         if (S_ISGITLINK($mode)) {
1005                 return 'm---------';
1006         } elsif (S_ISDIR($mode & S_IFMT)) {
1007                 return 'drwxr-xr-x';
1008         } elsif (S_ISLNK($mode)) {
1009                 return 'lrwxrwxrwx';
1010         } elsif (S_ISREG($mode)) {
1011                 # git cares only about the executable bit
1012                 if ($mode & S_IXUSR) {
1013                         return '-rwxr-xr-x';
1014                 } else {
1015                         return '-rw-r--r--';
1016                 };
1017         } else {
1018                 return '----------';
1019         }
1022 # convert file mode in octal to file type string
1023 sub file_type {
1024         my $mode = shift;
1026         if ($mode !~ m/^[0-7]+$/) {
1027                 return $mode;
1028         } else {
1029                 $mode = oct $mode;
1030         }
1032         if (S_ISGITLINK($mode)) {
1033                 return "submodule";
1034         } elsif (S_ISDIR($mode & S_IFMT)) {
1035                 return "directory";
1036         } elsif (S_ISLNK($mode)) {
1037                 return "symlink";
1038         } elsif (S_ISREG($mode)) {
1039                 return "file";
1040         } else {
1041                 return "unknown";
1042         }
1045 # convert file mode in octal to file type description string
1046 sub file_type_long {
1047         my $mode = shift;
1049         if ($mode !~ m/^[0-7]+$/) {
1050                 return $mode;
1051         } else {
1052                 $mode = oct $mode;
1053         }
1055         if (S_ISGITLINK($mode)) {
1056                 return "submodule";
1057         } elsif (S_ISDIR($mode & S_IFMT)) {
1058                 return "directory";
1059         } elsif (S_ISLNK($mode)) {
1060                 return "symlink";
1061         } elsif (S_ISREG($mode)) {
1062                 if ($mode & S_IXUSR) {
1063                         return "executable";
1064                 } else {
1065                         return "file";
1066                 };
1067         } else {
1068                 return "unknown";
1069         }
1073 ## ----------------------------------------------------------------------
1074 ## functions returning short HTML fragments, or transforming HTML fragments
1075 ## which don't belong to other sections
1077 # format line of commit message.
1078 sub format_log_line_html {
1079         my $line = shift;
1081         $line = esc_html($line, -nbsp=>1);
1082         if ($line =~ m/([0-9a-fA-F]{8,40})/) {
1083                 my $hash_text = $1;
1084                 my $link =
1085                         $cgi->a({-href => href(action=>"object", hash=>$hash_text),
1086                                 -class => "text"}, $hash_text);
1087                 $line =~ s/$hash_text/$link/;
1088         }
1089         return $line;
1092 # format marker of refs pointing to given object
1093 sub format_ref_marker {
1094         my ($refs, $id) = @_;
1095         my $markers = '';
1097         if (defined $refs->{$id}) {
1098                 foreach my $ref (@{$refs->{$id}}) {
1099                         my ($type, $name) = qw();
1100                         # e.g. tags/v2.6.11 or heads/next
1101                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
1102                                 $type = $1;
1103                                 $name = $2;
1104                         } else {
1105                                 $type = "ref";
1106                                 $name = $ref;
1107                         }
1109                         $markers .= " <span class=\"$type\" title=\"$ref\">" .
1110                                     esc_html($name) . "</span>";
1111                 }
1112         }
1114         if ($markers) {
1115                 return ' <span class="refs">'. $markers . '</span>';
1116         } else {
1117                 return "";
1118         }
1121 # format, perhaps shortened and with markers, title line
1122 sub format_subject_html {
1123         my ($long, $short, $href, $extra) = @_;
1124         $extra = '' unless defined($extra);
1126         if (length($short) < length($long)) {
1127                 return $cgi->a({-href => $href, -class => "list subject",
1128                                 -title => to_utf8($long)},
1129                        esc_html($short) . $extra);
1130         } else {
1131                 return $cgi->a({-href => $href, -class => "list subject"},
1132                        esc_html($long)  . $extra);
1133         }
1136 # format git diff header line, i.e. "diff --(git|combined|cc) ..."
1137 sub format_git_diff_header_line {
1138         my $line = shift;
1139         my $diffinfo = shift;
1140         my ($from, $to) = @_;
1142         if ($diffinfo->{'nparents'}) {
1143                 # combined diff
1144                 $line =~ s!^(diff (.*?) )"?.*$!$1!;
1145                 if ($to->{'href'}) {
1146                         $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
1147                                          esc_path($to->{'file'}));
1148                 } else { # file was deleted (no href)
1149                         $line .= esc_path($to->{'file'});
1150                 }
1151         } else {
1152                 # "ordinary" diff
1153                 $line =~ s!^(diff (.*?) )"?a/.*$!$1!;
1154                 if ($from->{'href'}) {
1155                         $line .= $cgi->a({-href => $from->{'href'}, -class => "path"},
1156                                          'a/' . esc_path($from->{'file'}));
1157                 } else { # file was added (no href)
1158                         $line .= 'a/' . esc_path($from->{'file'});
1159                 }
1160                 $line .= ' ';
1161                 if ($to->{'href'}) {
1162                         $line .= $cgi->a({-href => $to->{'href'}, -class => "path"},
1163                                          'b/' . esc_path($to->{'file'}));
1164                 } else { # file was deleted
1165                         $line .= 'b/' . esc_path($to->{'file'});
1166                 }
1167         }
1169         return "<div class=\"diff header\">$line</div>\n";
1172 # format extended diff header line, before patch itself
1173 sub format_extended_diff_header_line {
1174         my $line = shift;
1175         my $diffinfo = shift;
1176         my ($from, $to) = @_;
1178         # match <path>
1179         if ($line =~ s!^((copy|rename) from ).*$!$1! && $from->{'href'}) {
1180                 $line .= $cgi->a({-href=>$from->{'href'}, -class=>"path"},
1181                                        esc_path($from->{'file'}));
1182         }
1183         if ($line =~ s!^((copy|rename) to ).*$!$1! && $to->{'href'}) {
1184                 $line .= $cgi->a({-href=>$to->{'href'}, -class=>"path"},
1185                                  esc_path($to->{'file'}));
1186         }
1187         # match single <mode>
1188         if ($line =~ m/\s(\d{6})$/) {
1189                 $line .= '<span class="info"> (' .
1190                          file_type_long($1) .
1191                          ')</span>';
1192         }
1193         # match <hash>
1194         if ($line =~ m/^index [0-9a-fA-F]{40},[0-9a-fA-F]{40}/) {
1195                 # can match only for combined diff
1196                 $line = 'index ';
1197                 for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
1198                         if ($from->{'href'}[$i]) {
1199                                 $line .= $cgi->a({-href=>$from->{'href'}[$i],
1200                                                   -class=>"hash"},
1201                                                  substr($diffinfo->{'from_id'}[$i],0,7));
1202                         } else {
1203                                 $line .= '0' x 7;
1204                         }
1205                         # separator
1206                         $line .= ',' if ($i < $diffinfo->{'nparents'} - 1);
1207                 }
1208                 $line .= '..';
1209                 if ($to->{'href'}) {
1210                         $line .= $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
1211                                          substr($diffinfo->{'to_id'},0,7));
1212                 } else {
1213                         $line .= '0' x 7;
1214                 }
1216         } elsif ($line =~ m/^index [0-9a-fA-F]{40}..[0-9a-fA-F]{40}/) {
1217                 # can match only for ordinary diff
1218                 my ($from_link, $to_link);
1219                 if ($from->{'href'}) {
1220                         $from_link = $cgi->a({-href=>$from->{'href'}, -class=>"hash"},
1221                                              substr($diffinfo->{'from_id'},0,7));
1222                 } else {
1223                         $from_link = '0' x 7;
1224                 }
1225                 if ($to->{'href'}) {
1226                         $to_link = $cgi->a({-href=>$to->{'href'}, -class=>"hash"},
1227                                            substr($diffinfo->{'to_id'},0,7));
1228                 } else {
1229                         $to_link = '0' x 7;
1230                 }
1231                 my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
1232                 $line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
1233         }
1235         return $line . "<br/>\n";
1238 # format from-file/to-file diff header
1239 sub format_diff_from_to_header {
1240         my ($from_line, $to_line, $diffinfo, $from, $to, @parents) = @_;
1241         my $line;
1242         my $result = '';
1244         $line = $from_line;
1245         #assert($line =~ m/^---/) if DEBUG;
1246         # no extra formatting for "^--- /dev/null"
1247         if (! $diffinfo->{'nparents'}) {
1248                 # ordinary (single parent) diff
1249                 if ($line =~ m!^--- "?a/!) {
1250                         if ($from->{'href'}) {
1251                                 $line = '--- a/' .
1252                                         $cgi->a({-href=>$from->{'href'}, -class=>"path"},
1253                                                 esc_path($from->{'file'}));
1254                         } else {
1255                                 $line = '--- a/' .
1256                                         esc_path($from->{'file'});
1257                         }
1258                 }
1259                 $result .= qq!<div class="diff from_file">$line</div>\n!;
1261         } else {
1262                 # combined diff (merge commit)
1263                 for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
1264                         if ($from->{'href'}[$i]) {
1265                                 $line = '--- ' .
1266                                         $cgi->a({-href=>href(action=>"blobdiff",
1267                                                              hash_parent=>$diffinfo->{'from_id'}[$i],
1268                                                              hash_parent_base=>$parents[$i],
1269                                                              file_parent=>$from->{'file'}[$i],
1270                                                              hash=>$diffinfo->{'to_id'},
1271                                                              hash_base=>$hash,
1272                                                              file_name=>$to->{'file'}),
1273                                                  -class=>"path",
1274                                                  -title=>"diff" . ($i+1)},
1275                                                 $i+1) .
1276                                         '/' .
1277                                         $cgi->a({-href=>$from->{'href'}[$i], -class=>"path"},
1278                                                 esc_path($from->{'file'}[$i]));
1279                         } else {
1280                                 $line = '--- /dev/null';
1281                         }
1282                         $result .= qq!<div class="diff from_file">$line</div>\n!;
1283                 }
1284         }
1286         $line = $to_line;
1287         #assert($line =~ m/^\+\+\+/) if DEBUG;
1288         # no extra formatting for "^+++ /dev/null"
1289         if ($line =~ m!^\+\+\+ "?b/!) {
1290                 if ($to->{'href'}) {
1291                         $line = '+++ b/' .
1292                                 $cgi->a({-href=>$to->{'href'}, -class=>"path"},
1293                                         esc_path($to->{'file'}));
1294                 } else {
1295                         $line = '+++ b/' .
1296                                 esc_path($to->{'file'});
1297                 }
1298         }
1299         $result .= qq!<div class="diff to_file">$line</div>\n!;
1301         return $result;
1304 # create note for patch simplified by combined diff
1305 sub format_diff_cc_simplified {
1306         my ($diffinfo, @parents) = @_;
1307         my $result = '';
1309         $result .= "<div class=\"diff header\">" .
1310                    "diff --cc ";
1311         if (!is_deleted($diffinfo)) {
1312                 $result .= $cgi->a({-href => href(action=>"blob",
1313                                                   hash_base=>$hash,
1314                                                   hash=>$diffinfo->{'to_id'},
1315                                                   file_name=>$diffinfo->{'to_file'}),
1316                                     -class => "path"},
1317                                    esc_path($diffinfo->{'to_file'}));
1318         } else {
1319                 $result .= esc_path($diffinfo->{'to_file'});
1320         }
1321         $result .= "</div>\n" . # class="diff header"
1322                    "<div class=\"diff nodifferences\">" .
1323                    "Simple merge" .
1324                    "</div>\n"; # class="diff nodifferences"
1326         return $result;
1329 # format patch (diff) line (not to be used for diff headers)
1330 sub format_diff_line {
1331         my $line = shift;
1332         my ($from, $to) = @_;
1333         my $diff_class = "";
1335         chomp $line;
1337         if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
1338                 # combined diff
1339                 my $prefix = substr($line, 0, scalar @{$from->{'href'}});
1340                 if ($line =~ m/^\@{3}/) {
1341                         $diff_class = " chunk_header";
1342                 } elsif ($line =~ m/^\\/) {
1343                         $diff_class = " incomplete";
1344                 } elsif ($prefix =~ tr/+/+/) {
1345                         $diff_class = " add";
1346                 } elsif ($prefix =~ tr/-/-/) {
1347                         $diff_class = " rem";
1348                 }
1349         } else {
1350                 # assume ordinary diff
1351                 my $char = substr($line, 0, 1);
1352                 if ($char eq '+') {
1353                         $diff_class = " add";
1354                 } elsif ($char eq '-') {
1355                         $diff_class = " rem";
1356                 } elsif ($char eq '@') {
1357                         $diff_class = " chunk_header";
1358                 } elsif ($char eq "\\") {
1359                         $diff_class = " incomplete";
1360                 }
1361         }
1362         $line = untabify($line);
1363         if ($from && $to && $line =~ m/^\@{2} /) {
1364                 my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
1365                         $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
1367                 $from_lines = 0 unless defined $from_lines;
1368                 $to_lines   = 0 unless defined $to_lines;
1370                 if ($from->{'href'}) {
1371                         $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
1372                                              -class=>"list"}, $from_text);
1373                 }
1374                 if ($to->{'href'}) {
1375                         $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
1376                                              -class=>"list"}, $to_text);
1377                 }
1378                 $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
1379                         "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
1380                 return "<div class=\"diff$diff_class\">$line</div>\n";
1381         } elsif ($from && $to && $line =~ m/^\@{3}/) {
1382                 my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
1383                 my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
1385                 @from_text = split(' ', $ranges);
1386                 for (my $i = 0; $i < @from_text; ++$i) {
1387                         ($from_start[$i], $from_nlines[$i]) =
1388                                 (split(',', substr($from_text[$i], 1)), 0);
1389                 }
1391                 $to_text   = pop @from_text;
1392                 $to_start  = pop @from_start;
1393                 $to_nlines = pop @from_nlines;
1395                 $line = "<span class=\"chunk_info\">$prefix ";
1396                 for (my $i = 0; $i < @from_text; ++$i) {
1397                         if ($from->{'href'}[$i]) {
1398                                 $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
1399                                                   -class=>"list"}, $from_text[$i]);
1400                         } else {
1401                                 $line .= $from_text[$i];
1402                         }
1403                         $line .= " ";
1404                 }
1405                 if ($to->{'href'}) {
1406                         $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
1407                                           -class=>"list"}, $to_text);
1408                 } else {
1409                         $line .= $to_text;
1410                 }
1411                 $line .= " $prefix</span>" .
1412                          "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
1413                 return "<div class=\"diff$diff_class\">$line</div>\n";
1414         }
1415         return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
1418 # Generates undef or something like "_snapshot_" or "snapshot (_tbz2_ _zip_)",
1419 # linked.  Pass the hash of the tree/commit to snapshot.
1420 sub format_snapshot_links {
1421         my ($hash) = @_;
1422         my @snapshot_fmts = gitweb_check_feature('snapshot');
1423         @snapshot_fmts = filter_snapshot_fmts(@snapshot_fmts);
1424         my $num_fmts = @snapshot_fmts;
1425         if ($num_fmts > 1) {
1426                 # A parenthesized list of links bearing format names.
1427                 # e.g. "snapshot (_tar.gz_ _zip_)"
1428                 return "snapshot (" . join(' ', map
1429                         $cgi->a({
1430                                 -href => href(
1431                                         action=>"snapshot",
1432                                         hash=>$hash,
1433                                         snapshot_format=>$_
1434                                 )
1435                         }, $known_snapshot_formats{$_}{'display'})
1436                 , @snapshot_fmts) . ")";
1437         } elsif ($num_fmts == 1) {
1438                 # A single "snapshot" link whose tooltip bears the format name.
1439                 # i.e. "_snapshot_"
1440                 my ($fmt) = @snapshot_fmts;
1441                 return
1442                         $cgi->a({
1443                                 -href => href(
1444                                         action=>"snapshot",
1445                                         hash=>$hash,
1446                                         snapshot_format=>$fmt
1447                                 ),
1448                                 -title => "in format: $known_snapshot_formats{$fmt}{'display'}"
1449                         }, "snapshot");
1450         } else { # $num_fmts == 0
1451                 return undef;
1452         }
1455 ## ......................................................................
1456 ## functions returning values to be passed, perhaps after some
1457 ## transformation, to other functions; e.g. returning arguments to href()
1459 # returns hash to be passed to href to generate gitweb URL
1460 # in -title key it returns description of link
1461 sub get_feed_info {
1462         my $format = shift || 'Atom';
1463         my %res = (action => lc($format));
1465         # feed links are possible only for project views
1466         return unless (defined $project);
1467         # some views should link to OPML, or to generic project feed,
1468         # or don't have specific feed yet (so they should use generic)
1469         return if ($action =~ /^(?:tags|heads|forks|tag|search)$/x);
1471         my $branch;
1472         # branches refs uses 'refs/heads/' prefix (fullname) to differentiate
1473         # from tag links; this also makes possible to detect branch links
1474         if ((defined $hash_base && $hash_base =~ m!^refs/heads/(.*)$!) ||
1475             (defined $hash      && $hash      =~ m!^refs/heads/(.*)$!)) {
1476                 $branch = $1;
1477         }
1478         # find log type for feed description (title)
1479         my $type = 'log';
1480         if (defined $file_name) {
1481                 $type  = "history of $file_name";
1482                 $type .= "/" if ($action eq 'tree');
1483                 $type .= " on '$branch'" if (defined $branch);
1484         } else {
1485                 $type = "log of $branch" if (defined $branch);
1486         }
1488         $res{-title} = $type;
1489         $res{'hash'} = (defined $branch ? "refs/heads/$branch" : undef);
1490         $res{'file_name'} = $file_name;
1492         return %res;
1495 ## ----------------------------------------------------------------------
1496 ## git utility subroutines, invoking git commands
1498 # returns path to the core git executable and the --git-dir parameter as list
1499 sub git_cmd {
1500         return $GIT, '--git-dir='.$git_dir;
1503 # returns path to the core git executable and the --git-dir parameter as string
1504 sub git_cmd_str {
1505         return join(' ', git_cmd());
1508 # get HEAD ref of given project as hash
1509 sub git_get_head_hash {
1510         my $project = shift;
1511         my $o_git_dir = $git_dir;
1512         my $retval = undef;
1513         $git_dir = "$projectroot/$project";
1514         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
1515                 my $head = <$fd>;
1516                 close $fd;
1517                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
1518                         $retval = $1;
1519                 }
1520         }
1521         if (defined $o_git_dir) {
1522                 $git_dir = $o_git_dir;
1523         }
1524         return $retval;
1527 # get type of given object
1528 sub git_get_type {
1529         my $hash = shift;
1531         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
1532         my $type = <$fd>;
1533         close $fd or return;
1534         chomp $type;
1535         return $type;
1538 # repository configuration
1539 our $config_file = '';
1540 our %config;
1542 # store multiple values for single key as anonymous array reference
1543 # single values stored directly in the hash, not as [ <value> ]
1544 sub hash_set_multi {
1545         my ($hash, $key, $value) = @_;
1547         if (!exists $hash->{$key}) {
1548                 $hash->{$key} = $value;
1549         } elsif (!ref $hash->{$key}) {
1550                 $hash->{$key} = [ $hash->{$key}, $value ];
1551         } else {
1552                 push @{$hash->{$key}}, $value;
1553         }
1556 # return hash of git project configuration
1557 # optionally limited to some section, e.g. 'gitweb'
1558 sub git_parse_project_config {
1559         my $section_regexp = shift;
1560         my %config;
1562         local $/ = "\0";
1564         open my $fh, "-|", git_cmd(), "config", '-z', '-l',
1565                 or return;
1567         while (my $keyval = <$fh>) {
1568                 chomp $keyval;
1569                 my ($key, $value) = split(/\n/, $keyval, 2);
1571                 hash_set_multi(\%config, $key, $value)
1572                         if (!defined $section_regexp || $key =~ /^(?:$section_regexp)\./o);
1573         }
1574         close $fh;
1576         return %config;
1579 # convert config value to boolean, 'true' or 'false'
1580 # no value, number > 0, 'true' and 'yes' values are true
1581 # rest of values are treated as false (never as error)
1582 sub config_to_bool {
1583         my $val = shift;
1585         # strip leading and trailing whitespace
1586         $val =~ s/^\s+//;
1587         $val =~ s/\s+$//;
1589         return (!defined $val ||               # section.key
1590                 ($val =~ /^\d+$/ && $val) ||   # section.key = 1
1591                 ($val =~ /^(?:true|yes)$/i));  # section.key = true
1594 # convert config value to simple decimal number
1595 # an optional value suffix of 'k', 'm', or 'g' will cause the value
1596 # to be multiplied by 1024, 1048576, or 1073741824
1597 sub config_to_int {
1598         my $val = shift;
1600         # strip leading and trailing whitespace
1601         $val =~ s/^\s+//;
1602         $val =~ s/\s+$//;
1604         if (my ($num, $unit) = ($val =~ /^([0-9]*)([kmg])$/i)) {
1605                 $unit = lc($unit);
1606                 # unknown unit is treated as 1
1607                 return $num * ($unit eq 'g' ? 1073741824 :
1608                                $unit eq 'm' ?    1048576 :
1609                                $unit eq 'k' ?       1024 : 1);
1610         }
1611         return $val;
1614 # convert config value to array reference, if needed
1615 sub config_to_multi {
1616         my $val = shift;
1618         return ref($val) ? $val : (defined($val) ? [ $val ] : []);
1621 sub git_get_project_config {
1622         my ($key, $type) = @_;
1624         # key sanity check
1625         return unless ($key);
1626         $key =~ s/^gitweb\.//;
1627         return if ($key =~ m/\W/);
1629         # type sanity check
1630         if (defined $type) {
1631                 $type =~ s/^--//;
1632                 $type = undef
1633                         unless ($type eq 'bool' || $type eq 'int');
1634         }
1636         # get config
1637         if (!defined $config_file ||
1638             $config_file ne "$git_dir/config") {
1639                 %config = git_parse_project_config('gitweb');
1640                 $config_file = "$git_dir/config";
1641         }
1643         # ensure given type
1644         if (!defined $type) {
1645                 return $config{"gitweb.$key"};
1646         } elsif ($type eq 'bool') {
1647                 # backward compatibility: 'git config --bool' returns true/false
1648                 return config_to_bool($config{"gitweb.$key"}) ? 'true' : 'false';
1649         } elsif ($type eq 'int') {
1650                 return config_to_int($config{"gitweb.$key"});
1651         }
1652         return $config{"gitweb.$key"};
1655 # get hash of given path at given ref
1656 sub git_get_hash_by_path {
1657         my $base = shift;
1658         my $path = shift || return undef;
1659         my $type = shift;
1661         $path =~ s,/+$,,;
1663         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
1664                 or die_error(undef, "Open git-ls-tree failed");
1665         my $line = <$fd>;
1666         close $fd or return undef;
1668         if (!defined $line) {
1669                 # there is no tree or hash given by $path at $base
1670                 return undef;
1671         }
1673         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1674         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
1675         if (defined $type && $type ne $2) {
1676                 # type doesn't match
1677                 return undef;
1678         }
1679         return $3;
1682 # get path of entry with given hash at given tree-ish (ref)
1683 # used to get 'from' filename for combined diff (merge commit) for renames
1684 sub git_get_path_by_hash {
1685         my $base = shift || return;
1686         my $hash = shift || return;
1688         local $/ = "\0";
1690         open my $fd, "-|", git_cmd(), "ls-tree", '-r', '-t', '-z', $base
1691                 or return undef;
1692         while (my $line = <$fd>) {
1693                 chomp $line;
1695                 #'040000 tree 595596a6a9117ddba9fe379b6b012b558bac8423  gitweb'
1696                 #'100644 blob e02e90f0429be0d2a69b76571101f20b8f75530f  gitweb/README'
1697                 if ($line =~ m/(?:[0-9]+) (?:.+) $hash\t(.+)$/) {
1698                         close $fd;
1699                         return $1;
1700                 }
1701         }
1702         close $fd;
1703         return undef;
1706 ## ......................................................................
1707 ## git utility functions, directly accessing git repository
1709 sub git_get_project_description {
1710         my $path = shift;
1712         $git_dir = "$projectroot/$path";
1713         open my $fd, "$git_dir/description"
1714                 or return git_get_project_config('description');
1715         my $descr = <$fd>;
1716         close $fd;
1717         if (defined $descr) {
1718                 chomp $descr;
1719         }
1720         return $descr;
1723 sub git_get_project_url_list {
1724         my $path = shift;
1726         $git_dir = "$projectroot/$path";
1727         open my $fd, "$git_dir/cloneurl"
1728                 or return wantarray ?
1729                 @{ config_to_multi(git_get_project_config('url')) } :
1730                    config_to_multi(git_get_project_config('url'));
1731         my @git_project_url_list = map { chomp; $_ } <$fd>;
1732         close $fd;
1734         return wantarray ? @git_project_url_list : \@git_project_url_list;
1737 sub git_get_projects_list {
1738         my ($filter) = @_;
1739         my @list;
1741         $filter ||= '';
1742         $filter =~ s/\.git$//;
1744         my ($check_forks) = gitweb_check_feature('forks');
1746         if (-d $projects_list) {
1747                 # search in directory
1748                 my $dir = $projects_list . ($filter ? "/$filter" : '');
1749                 # remove the trailing "/"
1750                 $dir =~ s!/+$!!;
1751                 my $pfxlen = length("$dir");
1752                 my $pfxdepth = ($dir =~ tr!/!!);
1754                 File::Find::find({
1755                         follow_fast => 1, # follow symbolic links
1756                         follow_skip => 2, # ignore duplicates
1757                         dangling_symlinks => 0, # ignore dangling symlinks, silently
1758                         wanted => sub {
1759                                 # skip project-list toplevel, if we get it.
1760                                 return if (m!^[/.]$!);
1761                                 # only directories can be git repositories
1762                                 return unless (-d $_);
1763                                 # don't traverse too deep (Find is super slow on os x)
1764                                 if (($File::Find::name =~ tr!/!!) - $pfxdepth > $project_maxdepth) {
1765                                         $File::Find::prune = 1;
1766                                         return;
1767                                 }
1769                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
1770                                 # we check related file in $projectroot
1771                                 if ($check_forks and $subdir =~ m#/.#) {
1772                                         $File::Find::prune = 1;
1773                                 } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1774                                         push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1775                                         $File::Find::prune = 1;
1776                                 }
1777                         },
1778                 }, "$dir");
1780         } elsif (-f $projects_list) {
1781                 # read from file(url-encoded):
1782                 # 'git%2Fgit.git Linus+Torvalds'
1783                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1784                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1785                 my %paths;
1786                 open my ($fd), $projects_list or return;
1787         PROJECT:
1788                 while (my $line = <$fd>) {
1789                         chomp $line;
1790                         my ($path, $owner) = split ' ', $line;
1791                         $path = unescape($path);
1792                         $owner = unescape($owner);
1793                         if (!defined $path) {
1794                                 next;
1795                         }
1796                         if ($filter ne '') {
1797                                 # looking for forks;
1798                                 my $pfx = substr($path, 0, length($filter));
1799                                 if ($pfx ne $filter) {
1800                                         next PROJECT;
1801                                 }
1802                                 my $sfx = substr($path, length($filter));
1803                                 if ($sfx !~ /^\/.*\.git$/) {
1804                                         next PROJECT;
1805                                 }
1806                         } elsif ($check_forks) {
1807                         PATH:
1808                                 foreach my $filter (keys %paths) {
1809                                         # looking for forks;
1810                                         my $pfx = substr($path, 0, length($filter));
1811                                         if ($pfx ne $filter) {
1812                                                 next PATH;
1813                                         }
1814                                         my $sfx = substr($path, length($filter));
1815                                         if ($sfx !~ /^\/.*\.git$/) {
1816                                                 next PATH;
1817                                         }
1818                                         # is a fork, don't include it in
1819                                         # the list
1820                                         next PROJECT;
1821                                 }
1822                         }
1823                         if (check_export_ok("$projectroot/$path")) {
1824                                 my $pr = {
1825                                         path => $path,
1826                                         owner => to_utf8($owner),
1827                                 };
1828                                 push @list, $pr;
1829                                 (my $forks_path = $path) =~ s/\.git$//;
1830                                 $paths{$forks_path}++;
1831                         }
1832                 }
1833                 close $fd;
1834         }
1835         return @list;
1838 our $gitweb_project_owner = undef;
1839 sub git_get_project_list_from_file {
1841         return if (defined $gitweb_project_owner);
1843         $gitweb_project_owner = {};
1844         # read from file (url-encoded):
1845         # 'git%2Fgit.git Linus+Torvalds'
1846         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1847         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1848         if (-f $projects_list) {
1849                 open (my $fd , $projects_list);
1850                 while (my $line = <$fd>) {
1851                         chomp $line;
1852                         my ($pr, $ow) = split ' ', $line;
1853                         $pr = unescape($pr);
1854                         $ow = unescape($ow);
1855                         $gitweb_project_owner->{$pr} = to_utf8($ow);
1856                 }
1857                 close $fd;
1858         }
1861 sub git_get_project_owner {
1862         my $project = shift;
1863         my $owner;
1865         return undef unless $project;
1866         $git_dir = "$projectroot/$project";
1868         if (!defined $gitweb_project_owner) {
1869                 git_get_project_list_from_file();
1870         }
1872         if (exists $gitweb_project_owner->{$project}) {
1873                 $owner = $gitweb_project_owner->{$project};
1874         }
1875         if (!defined $owner){
1876                 $owner = git_get_project_config('owner');
1877         }
1878         if (!defined $owner) {
1879                 $owner = get_file_owner("$git_dir");
1880         }
1882         return $owner;
1885 sub git_get_last_activity {
1886         my ($path) = @_;
1887         my $fd;
1889         $git_dir = "$projectroot/$path";
1890         open($fd, "-|", git_cmd(), 'for-each-ref',
1891              '--format=%(committer)',
1892              '--sort=-committerdate',
1893              '--count=1',
1894              'refs/heads') or return;
1895         my $most_recent = <$fd>;
1896         close $fd or return;
1897         if (defined $most_recent &&
1898             $most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1899                 my $timestamp = $1;
1900                 my $age = time - $timestamp;
1901                 return ($age, age_string($age));
1902         }
1903         return (undef, undef);
1906 sub git_get_references {
1907         my $type = shift || "";
1908         my %refs;
1909         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
1910         # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
1911         open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
1912                 ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
1913                 or return;
1915         while (my $line = <$fd>) {
1916                 chomp $line;
1917                 if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
1918                         if (defined $refs{$1}) {
1919                                 push @{$refs{$1}}, $2;
1920                         } else {
1921                                 $refs{$1} = [ $2 ];
1922                         }
1923                 }
1924         }
1925         close $fd or return;
1926         return \%refs;
1929 sub git_get_rev_name_tags {
1930         my $hash = shift || return undef;
1932         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1933                 or return;
1934         my $name_rev = <$fd>;
1935         close $fd;
1937         if ($name_rev =~ m|^$hash tags/(.*)$|) {
1938                 return $1;
1939         } else {
1940                 # catches also '$hash undefined' output
1941                 return undef;
1942         }
1945 ## ----------------------------------------------------------------------
1946 ## parse to hash functions
1948 sub parse_date {
1949         my $epoch = shift;
1950         my $tz = shift || "-0000";
1952         my %date;
1953         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1954         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1955         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1956         $date{'hour'} = $hour;
1957         $date{'minute'} = $min;
1958         $date{'mday'} = $mday;
1959         $date{'day'} = $days[$wday];
1960         $date{'month'} = $months[$mon];
1961         $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1962                              $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1963         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1964                              $mday, $months[$mon], $hour ,$min;
1965         $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
1966                              1900+$year, 1+$mon, $mday, $hour ,$min, $sec;
1968         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1969         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1970         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1971         $date{'hour_local'} = $hour;
1972         $date{'minute_local'} = $min;
1973         $date{'tz_local'} = $tz;
1974         $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
1975                                   1900+$year, $mon+1, $mday,
1976                                   $hour, $min, $sec, $tz);
1977         return %date;
1980 sub parse_tag {
1981         my $tag_id = shift;
1982         my %tag;
1983         my @comment;
1985         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1986         $tag{'id'} = $tag_id;
1987         while (my $line = <$fd>) {
1988                 chomp $line;
1989                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1990                         $tag{'object'} = $1;
1991                 } elsif ($line =~ m/^type (.+)$/) {
1992                         $tag{'type'} = $1;
1993                 } elsif ($line =~ m/^tag (.+)$/) {
1994                         $tag{'name'} = $1;
1995                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1996                         $tag{'author'} = $1;
1997                         $tag{'epoch'} = $2;
1998                         $tag{'tz'} = $3;
1999                 } elsif ($line =~ m/--BEGIN/) {
2000                         push @comment, $line;
2001                         last;
2002                 } elsif ($line eq "") {
2003                         last;
2004                 }
2005         }
2006         push @comment, <$fd>;
2007         $tag{'comment'} = \@comment;
2008         close $fd or return;
2009         if (!defined $tag{'name'}) {
2010                 return
2011         };
2012         return %tag
2015 sub parse_commit_text {
2016         my ($commit_text, $withparents) = @_;
2017         my @commit_lines = split '\n', $commit_text;
2018         my %co;
2020         pop @commit_lines; # Remove '\0'
2022         if (! @commit_lines) {
2023                 return;
2024         }
2026         my $header = shift @commit_lines;
2027         if ($header !~ m/^[0-9a-fA-F]{40}/) {
2028                 return;
2029         }
2030         ($co{'id'}, my @parents) = split ' ', $header;
2031         while (my $line = shift @commit_lines) {
2032                 last if $line eq "\n";
2033                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
2034                         $co{'tree'} = $1;
2035                 } elsif ((!defined $withparents) && ($line =~ m/^parent ([0-9a-fA-F]{40})$/)) {
2036                         push @parents, $1;
2037                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
2038                         $co{'author'} = $1;
2039                         $co{'author_epoch'} = $2;
2040                         $co{'author_tz'} = $3;
2041                         if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
2042                                 $co{'author_name'}  = $1;
2043                                 $co{'author_email'} = $2;
2044                         } else {
2045                                 $co{'author_name'} = $co{'author'};
2046                         }
2047                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
2048                         $co{'committer'} = $1;
2049                         $co{'committer_epoch'} = $2;
2050                         $co{'committer_tz'} = $3;
2051                         $co{'committer_name'} = $co{'committer'};
2052                         if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
2053                                 $co{'committer_name'}  = $1;
2054                                 $co{'committer_email'} = $2;
2055                         } else {
2056                                 $co{'committer_name'} = $co{'committer'};
2057                         }
2058                 }
2059         }
2060         if (!defined $co{'tree'}) {
2061                 return;
2062         };
2063         $co{'parents'} = \@parents;
2064         $co{'parent'} = $parents[0];
2066         foreach my $title (@commit_lines) {
2067                 $title =~ s/^    //;
2068                 if ($title ne "") {
2069                         $co{'title'} = chop_str($title, 80, 5);
2070                         # remove leading stuff of merges to make the interesting part visible
2071                         if (length($title) > 50) {
2072                                 $title =~ s/^Automatic //;
2073                                 $title =~ s/^merge (of|with) /Merge ... /i;
2074                                 if (length($title) > 50) {
2075                                         $title =~ s/(http|rsync):\/\///;
2076                                 }
2077                                 if (length($title) > 50) {
2078                                         $title =~ s/(master|www|rsync)\.//;
2079                                 }
2080                                 if (length($title) > 50) {
2081                                         $title =~ s/kernel.org:?//;
2082                                 }
2083                                 if (length($title) > 50) {
2084                                         $title =~ s/\/pub\/scm//;
2085                                 }
2086                         }
2087                         $co{'title_short'} = chop_str($title, 50, 5);
2088                         last;
2089                 }
2090         }
2091         if ($co{'title'} eq "") {
2092                 $co{'title'} = $co{'title_short'} = '(no commit message)';
2093         }
2094         # remove added spaces
2095         foreach my $line (@commit_lines) {
2096                 $line =~ s/^    //;
2097         }
2098         $co{'comment'} = \@commit_lines;
2100         my $age = time - $co{'committer_epoch'};
2101         $co{'age'} = $age;
2102         $co{'age_string'} = age_string($age);
2103         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
2104         if ($age > 60*60*24*7*2) {
2105                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
2106                 $co{'age_string_age'} = $co{'age_string'};
2107         } else {
2108                 $co{'age_string_date'} = $co{'age_string'};
2109                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
2110         }
2111         return %co;
2114 sub parse_commit {
2115         my ($commit_id) = @_;
2116         my %co;
2118         local $/ = "\0";
2120         open my $fd, "-|", git_cmd(), "rev-list",
2121                 "--parents",
2122                 "--header",
2123                 "--max-count=1",
2124                 $commit_id,
2125                 "--",
2126                 or die_error(undef, "Open git-rev-list failed");
2127         %co = parse_commit_text(<$fd>, 1);
2128         close $fd;
2130         return %co;
2133 sub parse_commits {
2134         my ($commit_id, $maxcount, $skip, $filename, @args) = @_;
2135         my @cos;
2137         $maxcount ||= 1;
2138         $skip ||= 0;
2140         local $/ = "\0";
2142         open my $fd, "-|", git_cmd(), "rev-list",
2143                 "--header",
2144                 @args,
2145                 ("--max-count=" . $maxcount),
2146                 ("--skip=" . $skip),
2147                 @extra_options,
2148                 $commit_id,
2149                 "--",
2150                 ($filename ? ($filename) : ())
2151                 or die_error(undef, "Open git-rev-list failed");
2152         while (my $line = <$fd>) {
2153                 my %co = parse_commit_text($line);
2154                 push @cos, \%co;
2155         }
2156         close $fd;
2158         return wantarray ? @cos : \@cos;
2161 # parse ref from ref_file, given by ref_id, with given type
2162 sub parse_ref {
2163         my $ref_file = shift;
2164         my $ref_id = shift;
2165         my $type = shift || git_get_type($ref_id);
2166         my %ref_item;
2168         $ref_item{'type'} = $type;
2169         $ref_item{'id'} = $ref_id;
2170         $ref_item{'epoch'} = 0;
2171         $ref_item{'age'} = "unknown";
2172         if ($type eq "tag") {
2173                 my %tag = parse_tag($ref_id);
2174                 $ref_item{'comment'} = $tag{'comment'};
2175                 if ($tag{'type'} eq "commit") {
2176                         my %co = parse_commit($tag{'object'});
2177                         $ref_item{'epoch'} = $co{'committer_epoch'};
2178                         $ref_item{'age'} = $co{'age_string'};
2179                 } elsif (defined($tag{'epoch'})) {
2180                         my $age = time - $tag{'epoch'};
2181                         $ref_item{'epoch'} = $tag{'epoch'};
2182                         $ref_item{'age'} = age_string($age);
2183                 }
2184                 $ref_item{'reftype'} = $tag{'type'};
2185                 $ref_item{'name'} = $tag{'name'};
2186                 $ref_item{'refid'} = $tag{'object'};
2187         } elsif ($type eq "commit"){
2188                 my %co = parse_commit($ref_id);
2189                 $ref_item{'reftype'} = "commit";
2190                 $ref_item{'name'} = $ref_file;
2191                 $ref_item{'title'} = $co{'title'};
2192                 $ref_item{'refid'} = $ref_id;
2193                 $ref_item{'epoch'} = $co{'committer_epoch'};
2194                 $ref_item{'age'} = $co{'age_string'};
2195         } else {
2196                 $ref_item{'reftype'} = $type;
2197                 $ref_item{'name'} = $ref_file;
2198                 $ref_item{'refid'} = $ref_id;
2199         }
2201         return %ref_item;
2204 # parse line of git-diff-tree "raw" output
2205 sub parse_difftree_raw_line {
2206         my $line = shift;
2207         my %res;
2209         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
2210         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
2211         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
2212                 $res{'from_mode'} = $1;
2213                 $res{'to_mode'} = $2;
2214                 $res{'from_id'} = $3;
2215                 $res{'to_id'} = $4;
2216                 $res{'status'} = $5;
2217                 $res{'similarity'} = $6;
2218                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
2219                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
2220                 } else {
2221                         $res{'from_file'} = $res{'to_file'} = $res{'file'} = unquote($7);
2222                 }
2223         }
2224         # '::100755 100755 100755 60e79ca1b01bc8b057abe17ddab484699a7f5fdb 94067cc5f73388f33722d52ae02f44692bc07490 94067cc5f73388f33722d52ae02f44692bc07490 MR git-gui/git-gui.sh'
2225         # combined diff (for merge commit)
2226         elsif ($line =~ s/^(::+)((?:[0-7]{6} )+)((?:[0-9a-fA-F]{40} )+)([a-zA-Z]+)\t(.*)$//) {
2227                 $res{'nparents'}  = length($1);
2228                 $res{'from_mode'} = [ split(' ', $2) ];
2229                 $res{'to_mode'} = pop @{$res{'from_mode'}};
2230                 $res{'from_id'} = [ split(' ', $3) ];
2231                 $res{'to_id'} = pop @{$res{'from_id'}};
2232                 $res{'status'} = [ split('', $4) ];
2233                 $res{'to_file'} = unquote($5);
2234         }
2235         # 'c512b523472485aef4fff9e57b229d9d243c967f'
2236         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
2237                 $res{'commit'} = $1;
2238         }
2240         return wantarray ? %res : \%res;
2243 # wrapper: return parsed line of git-diff-tree "raw" output
2244 # (the argument might be raw line, or parsed info)
2245 sub parsed_difftree_line {
2246         my $line_or_ref = shift;
2248         if (ref($line_or_ref) eq "HASH") {
2249                 # pre-parsed (or generated by hand)
2250                 return $line_or_ref;
2251         } else {
2252                 return parse_difftree_raw_line($line_or_ref);
2253         }
2256 # parse line of git-ls-tree output
2257 sub parse_ls_tree_line ($;%) {
2258         my $line = shift;
2259         my %opts = @_;
2260         my %res;
2262         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
2263         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
2265         $res{'mode'} = $1;
2266         $res{'type'} = $2;
2267         $res{'hash'} = $3;
2268         if ($opts{'-z'}) {
2269                 $res{'name'} = $4;
2270         } else {
2271                 $res{'name'} = unquote($4);
2272         }
2274         return wantarray ? %res : \%res;
2277 # generates _two_ hashes, references to which are passed as 2 and 3 argument
2278 sub parse_from_to_diffinfo {
2279         my ($diffinfo, $from, $to, @parents) = @_;
2281         if ($diffinfo->{'nparents'}) {
2282                 # combined diff
2283                 $from->{'file'} = [];
2284                 $from->{'href'} = [];
2285                 fill_from_file_info($diffinfo, @parents)
2286                         unless exists $diffinfo->{'from_file'};
2287                 for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
2288                         $from->{'file'}[$i] =
2289                                 defined $diffinfo->{'from_file'}[$i] ?
2290                                         $diffinfo->{'from_file'}[$i] :
2291                                         $diffinfo->{'to_file'};
2292                         if ($diffinfo->{'status'}[$i] ne "A") { # not new (added) file
2293                                 $from->{'href'}[$i] = href(action=>"blob",
2294                                                            hash_base=>$parents[$i],
2295                                                            hash=>$diffinfo->{'from_id'}[$i],
2296                                                            file_name=>$from->{'file'}[$i]);
2297                         } else {
2298                                 $from->{'href'}[$i] = undef;
2299                         }
2300                 }
2301         } else {
2302                 # ordinary (not combined) diff
2303                 $from->{'file'} = $diffinfo->{'from_file'};
2304                 if ($diffinfo->{'status'} ne "A") { # not new (added) file
2305                         $from->{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2306                                                hash=>$diffinfo->{'from_id'},
2307                                                file_name=>$from->{'file'});
2308                 } else {
2309                         delete $from->{'href'};
2310                 }
2311         }
2313         $to->{'file'} = $diffinfo->{'to_file'};
2314         if (!is_deleted($diffinfo)) { # file exists in result
2315                 $to->{'href'} = href(action=>"blob", hash_base=>$hash,
2316                                      hash=>$diffinfo->{'to_id'},
2317                                      file_name=>$to->{'file'});
2318         } else {
2319                 delete $to->{'href'};
2320         }
2323 ## ......................................................................
2324 ## parse to array of hashes functions
2326 sub git_get_heads_list {
2327         my $limit = shift;
2328         my @headslist;
2330         open my $fd, '-|', git_cmd(), 'for-each-ref',
2331                 ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
2332                 '--format=%(objectname) %(refname) %(subject)%00%(committer)',
2333                 'refs/heads'
2334                 or return;
2335         while (my $line = <$fd>) {
2336                 my %ref_item;
2338                 chomp $line;
2339                 my ($refinfo, $committerinfo) = split(/\0/, $line);
2340                 my ($hash, $name, $title) = split(' ', $refinfo, 3);
2341                 my ($committer, $epoch, $tz) =
2342                         ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
2343                 $ref_item{'fullname'}  = $name;
2344                 $name =~ s!^refs/heads/!!;
2346                 $ref_item{'name'}  = $name;
2347                 $ref_item{'id'}    = $hash;
2348                 $ref_item{'title'} = $title || '(no commit message)';
2349                 $ref_item{'epoch'} = $epoch;
2350                 if ($epoch) {
2351                         $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
2352                 } else {
2353                         $ref_item{'age'} = "unknown";
2354                 }
2356                 push @headslist, \%ref_item;
2357         }
2358         close $fd;
2360         return wantarray ? @headslist : \@headslist;
2363 sub git_get_tags_list {
2364         my $limit = shift;
2365         my @tagslist;
2367         open my $fd, '-|', git_cmd(), 'for-each-ref',
2368                 ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
2369                 '--format=%(objectname) %(objecttype) %(refname) '.
2370                 '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
2371                 'refs/tags'
2372                 or return;
2373         while (my $line = <$fd>) {
2374                 my %ref_item;
2376                 chomp $line;
2377                 my ($refinfo, $creatorinfo) = split(/\0/, $line);
2378                 my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
2379                 my ($creator, $epoch, $tz) =
2380                         ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
2381                 $ref_item{'fullname'} = $name;
2382                 $name =~ s!^refs/tags/!!;
2384                 $ref_item{'type'} = $type;
2385                 $ref_item{'id'} = $id;
2386                 $ref_item{'name'} = $name;
2387                 if ($type eq "tag") {
2388                         $ref_item{'subject'} = $title;
2389                         $ref_item{'reftype'} = $reftype;
2390                         $ref_item{'refid'}   = $refid;
2391                 } else {
2392                         $ref_item{'reftype'} = $type;
2393                         $ref_item{'refid'}   = $id;
2394                 }
2396                 if ($type eq "tag" || $type eq "commit") {
2397                         $ref_item{'epoch'} = $epoch;
2398                         if ($epoch) {
2399                                 $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
2400                         } else {
2401                                 $ref_item{'age'} = "unknown";
2402                         }
2403                 }
2405                 push @tagslist, \%ref_item;
2406         }
2407         close $fd;
2409         return wantarray ? @tagslist : \@tagslist;
2412 ## ----------------------------------------------------------------------
2413 ## filesystem-related functions
2415 sub get_file_owner {
2416         my $path = shift;
2418         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
2419         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
2420         if (!defined $gcos) {
2421                 return undef;
2422         }
2423         my $owner = $gcos;
2424         $owner =~ s/[,;].*$//;
2425         return to_utf8($owner);
2428 ## ......................................................................
2429 ## mimetype related functions
2431 sub mimetype_guess_file {
2432         my $filename = shift;
2433         my $mimemap = shift;
2434         -r $mimemap or return undef;
2436         my %mimemap;
2437         open(MIME, $mimemap) or return undef;
2438         while (<MIME>) {
2439                 next if m/^#/; # skip comments
2440                 my ($mime, $exts) = split(/\t+/);
2441                 if (defined $exts) {
2442                         my @exts = split(/\s+/, $exts);
2443                         foreach my $ext (@exts) {
2444                                 $mimemap{$ext} = $mime;
2445                         }
2446                 }
2447         }
2448         close(MIME);
2450         $filename =~ /\.([^.]*)$/;
2451         return $mimemap{$1};
2454 sub mimetype_guess {
2455         my $filename = shift;
2456         my $mime;
2457         $filename =~ /\./ or return undef;
2459         if ($mimetypes_file) {
2460                 my $file = $mimetypes_file;
2461                 if ($file !~ m!^/!) { # if it is relative path
2462                         # it is relative to project
2463                         $file = "$projectroot/$project/$file";
2464                 }
2465                 $mime = mimetype_guess_file($filename, $file);
2466         }
2467         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
2468         return $mime;
2471 sub blob_mimetype {
2472         my $fd = shift;
2473         my $filename = shift;
2475         if ($filename) {
2476                 my $mime = mimetype_guess($filename);
2477                 $mime and return $mime;
2478         }
2480         # just in case
2481         return $default_blob_plain_mimetype unless $fd;
2483         if (-T $fd) {
2484                 return 'text/plain' .
2485                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
2486         } elsif (! $filename) {
2487                 return 'application/octet-stream';
2488         } elsif ($filename =~ m/\.png$/i) {
2489                 return 'image/png';
2490         } elsif ($filename =~ m/\.gif$/i) {
2491                 return 'image/gif';
2492         } elsif ($filename =~ m/\.jpe?g$/i) {
2493                 return 'image/jpeg';
2494         } else {
2495                 return 'application/octet-stream';
2496         }
2499 ## ======================================================================
2500 ## functions printing HTML: header, footer, error page
2502 sub git_header_html {
2503         my $status = shift || "200 OK";
2504         my $expires = shift;
2506         my $title = "$site_name";
2507         if (defined $project) {
2508                 $title .= " - " . to_utf8($project);
2509                 if (defined $action) {
2510                         $title .= "/$action";
2511                         if (defined $file_name) {
2512                                 $title .= " - " . esc_path($file_name);
2513                                 if ($action eq "tree" && $file_name !~ m|/$|) {
2514                                         $title .= "/";
2515                                 }
2516                         }
2517                 }
2518         }
2519         my $content_type;
2520         # require explicit support from the UA if we are to send the page as
2521         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
2522         # we have to do this because MSIE sometimes globs '*/*', pretending to
2523         # support xhtml+xml but choking when it gets what it asked for.
2524         if (defined $cgi->http('HTTP_ACCEPT') &&
2525             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
2526             $cgi->Accept('application/xhtml+xml') != 0) {
2527                 $content_type = 'application/xhtml+xml';
2528         } else {
2529                 $content_type = 'text/html';
2530         }
2531         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
2532                            -status=> $status, -expires => $expires);
2533         my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : '';
2534         print <<EOF;
2535 <?xml version="1.0" encoding="utf-8"?>
2536 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
2537 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
2538 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
2539 <!-- git core binaries version $git_version -->
2540 <head>
2541 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
2542 <meta name="generator" content="gitweb/$version git/$git_version$mod_perl_version"/>
2543 <meta name="robots" content="index, nofollow"/>
2544 <title>$title</title>
2545 EOF
2546 # print out each stylesheet that exist
2547         if (defined $stylesheet) {
2548 #provides backwards capability for those people who define style sheet in a config file
2549                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2550         } else {
2551                 foreach my $stylesheet (@stylesheets) {
2552                         next unless $stylesheet;
2553                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
2554                 }
2555         }
2556         if (defined $project) {
2557                 my %href_params = get_feed_info();
2558                 if (!exists $href_params{'-title'}) {
2559                         $href_params{'-title'} = 'log';
2560                 }
2562                 foreach my $format qw(RSS Atom) {
2563                         my $type = lc($format);
2564                         my %link_attr = (
2565                                 '-rel' => 'alternate',
2566                                 '-title' => "$project - $href_params{'-title'} - $format feed",
2567                                 '-type' => "application/$type+xml"
2568                         );
2570                         $href_params{'action'} = $type;
2571                         $link_attr{'-href'} = href(%href_params);
2572                         print "<link ".
2573                               "rel=\"$link_attr{'-rel'}\" ".
2574                               "title=\"$link_attr{'-title'}\" ".
2575                               "href=\"$link_attr{'-href'}\" ".
2576                               "type=\"$link_attr{'-type'}\" ".
2577                               "/>\n";
2579                         $href_params{'extra_options'} = '--no-merges';
2580                         $link_attr{'-href'} = href(%href_params);
2581                         $link_attr{'-title'} .= ' (no merges)';
2582                         print "<link ".
2583                               "rel=\"$link_attr{'-rel'}\" ".
2584                               "title=\"$link_attr{'-title'}\" ".
2585                               "href=\"$link_attr{'-href'}\" ".
2586                               "type=\"$link_attr{'-type'}\" ".
2587                               "/>\n";
2588                 }
2590         } else {
2591                 printf('<link rel="alternate" title="%s projects list" '.
2592                        'href="%s" type="text/plain; charset=utf-8" />'."\n",
2593                        $site_name, href(project=>undef, action=>"project_index"));
2594                 printf('<link rel="alternate" title="%s projects feeds" '.
2595                        'href="%s" type="text/x-opml" />'."\n",
2596                        $site_name, href(project=>undef, action=>"opml"));
2597         }
2598         if (defined $favicon) {
2599                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png" />\n);
2600         }
2602         print "</head>\n" .
2603               "<body>\n";
2605         if (-f $site_header) {
2606                 open (my $fd, $site_header);
2607                 print <$fd>;
2608                 close $fd;
2609         }
2611         print "<div class=\"page_header\">\n" .
2612               $cgi->a({-href => esc_url($logo_url),
2613                        -title => $logo_label},
2614                       qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
2615         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
2616         if (defined $project) {
2617                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
2618                 if (defined $action) {
2619                         print " / $action";
2620                 }
2621                 print "\n";
2622         }
2623         print "</div>\n";
2625         my ($have_search) = gitweb_check_feature('search');
2626         if (defined $project && $have_search) {
2627                 if (!defined $searchtext) {
2628                         $searchtext = "";
2629                 }
2630                 my $search_hash;
2631                 if (defined $hash_base) {
2632                         $search_hash = $hash_base;
2633                 } elsif (defined $hash) {
2634                         $search_hash = $hash;
2635                 } else {
2636                         $search_hash = "HEAD";
2637                 }
2638                 my $action = $my_uri;
2639                 my ($use_pathinfo) = gitweb_check_feature('pathinfo');
2640                 if ($use_pathinfo) {
2641                         $action .= "/".esc_url($project);
2642                 }
2643                 print $cgi->startform(-method => "get", -action => $action) .
2644                       "<div class=\"search\">\n" .
2645                       (!$use_pathinfo &&
2646                       $cgi->input({-name=>"p", -value=>$project, -type=>"hidden"}) . "\n") .
2647                       $cgi->input({-name=>"a", -value=>"search", -type=>"hidden"}) . "\n" .
2648                       $cgi->input({-name=>"h", -value=>$search_hash, -type=>"hidden"}) . "\n" .
2649                       $cgi->popup_menu(-name => 'st', -default => 'commit',
2650                                        -values => ['commit', 'grep', 'author', 'committer', 'pickaxe']) .
2651                       $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
2652                       " search:\n",
2653                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
2654                       "<span title=\"Extended regular expression\">" .
2655                       $cgi->checkbox(-name => 'sr', -value => 1, -label => 're',
2656                                      -checked => $search_use_regexp) .
2657                       "</span>" .
2658                       "</div>" .
2659                       $cgi->end_form() . "\n";
2660         }
2663 sub git_footer_html {
2664         my $feed_class = 'rss_logo';
2666         print "<div class=\"page_footer\">\n";
2667         if (defined $project) {
2668                 my $descr = git_get_project_description($project);
2669                 if (defined $descr) {
2670                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
2671                 }
2673                 my %href_params = get_feed_info();
2674                 if (!%href_params) {
2675                         $feed_class .= ' generic';
2676                 }
2677                 $href_params{'-title'} ||= 'log';
2679                 foreach my $format qw(RSS Atom) {
2680                         $href_params{'action'} = lc($format);
2681                         print $cgi->a({-href => href(%href_params),
2682                                       -title => "$href_params{'-title'} $format feed",
2683                                       -class => $feed_class}, $format)."\n";
2684                 }
2686         } else {
2687                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
2688                               -class => $feed_class}, "OPML") . " ";
2689                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
2690                               -class => $feed_class}, "TXT") . "\n";
2691         }
2692         print "</div>\n"; # class="page_footer"
2694         if (-f $site_footer) {
2695                 open (my $fd, $site_footer);
2696                 print <$fd>;
2697                 close $fd;
2698         }
2700         print "</body>\n" .
2701               "</html>";
2704 sub die_error {
2705         my $status = shift || "403 Forbidden";
2706         my $error = shift || "Malformed query, file missing or permission denied";
2708         git_header_html($status);
2709         print <<EOF;
2710 <div class="page_body">
2711 <br /><br />
2712 $status - $error
2713 <br />
2714 </div>
2715 EOF
2716         git_footer_html();
2717         exit;
2720 ## ----------------------------------------------------------------------
2721 ## functions printing or outputting HTML: navigation
2723 sub git_print_page_nav {
2724         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
2725         $extra = '' if !defined $extra; # pager or formats
2727         my @navs = qw(summary shortlog log commit commitdiff tree);
2728         if ($suppress) {
2729                 @navs = grep { $_ ne $suppress } @navs;
2730         }
2732         my %arg = map { $_ => {action=>$_} } @navs;
2733         if (defined $head) {
2734                 for (qw(commit commitdiff)) {
2735                         $arg{$_}{'hash'} = $head;
2736                 }
2737                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
2738                         for (qw(shortlog log)) {
2739                                 $arg{$_}{'hash'} = $head;
2740                         }
2741                 }
2742         }
2743         $arg{'tree'}{'hash'} = $treehead if defined $treehead;
2744         $arg{'tree'}{'hash_base'} = $treebase if defined $treebase;
2746         print "<div class=\"page_nav\">\n" .
2747                 (join " | ",
2748                  map { $_ eq $current ?
2749                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
2750                  } @navs);
2751         print "<br/>\n$extra<br/>\n" .
2752               "</div>\n";
2755 sub format_paging_nav {
2756         my ($action, $hash, $head, $page, $has_next_link) = @_;
2757         my $paging_nav;
2760         if ($hash ne $head || $page) {
2761                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
2762         } else {
2763                 $paging_nav .= "HEAD";
2764         }
2766         if ($page > 0) {
2767                 $paging_nav .= " &sdot; " .
2768                         $cgi->a({-href => href(-replay=>1, page=>$page-1),
2769                                  -accesskey => "p", -title => "Alt-p"}, "prev");
2770         } else {
2771                 $paging_nav .= " &sdot; prev";
2772         }
2774         if ($has_next_link) {
2775                 $paging_nav .= " &sdot; " .
2776                         $cgi->a({-href => href(-replay=>1, page=>$page+1),
2777                                  -accesskey => "n", -title => "Alt-n"}, "next");
2778         } else {
2779                 $paging_nav .= " &sdot; next";
2780         }
2782         return $paging_nav;
2785 ## ......................................................................
2786 ## functions printing or outputting HTML: div
2788 sub git_print_header_div {
2789         my ($action, $title, $hash, $hash_base) = @_;
2790         my %args = ();
2792         $args{'action'} = $action;
2793         $args{'hash'} = $hash if $hash;
2794         $args{'hash_base'} = $hash_base if $hash_base;
2796         print "<div class=\"header\">\n" .
2797               $cgi->a({-href => href(%args), -class => "title"},
2798               $title ? $title : $action) .
2799               "\n</div>\n";
2802 #sub git_print_authorship (\%) {
2803 sub git_print_authorship {
2804         my $co = shift;
2806         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
2807         print "<div class=\"author_date\">" .
2808               esc_html($co->{'author_name'}) .
2809               " [$ad{'rfc2822'}";
2810         if ($ad{'hour_local'} < 6) {
2811                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2812                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2813         } else {
2814                 printf(" (%02d:%02d %s)",
2815                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2816         }
2817         print "]</div>\n";
2820 sub git_print_page_path {
2821         my $name = shift;
2822         my $type = shift;
2823         my $hb = shift;
2826         print "<div class=\"page_path\">";
2827         print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
2828                       -title => 'tree root'}, to_utf8("[$project]"));
2829         print " / ";
2830         if (defined $name) {
2831                 my @dirname = split '/', $name;
2832                 my $basename = pop @dirname;
2833                 my $fullname = '';
2835                 foreach my $dir (@dirname) {
2836                         $fullname .= ($fullname ? '/' : '') . $dir;
2837                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
2838                                                      hash_base=>$hb),
2839                                       -title => $fullname}, esc_path($dir));
2840                         print " / ";
2841                 }
2842                 if (defined $type && $type eq 'blob') {
2843                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
2844                                                      hash_base=>$hb),
2845                                       -title => $name}, esc_path($basename));
2846                 } elsif (defined $type && $type eq 'tree') {
2847                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
2848                                                      hash_base=>$hb),
2849                                       -title => $name}, esc_path($basename));
2850                         print " / ";
2851                 } else {
2852                         print esc_path($basename);
2853                 }
2854         }
2855         print "<br/></div>\n";
2858 # sub git_print_log (\@;%) {
2859 sub git_print_log ($;%) {
2860         my $log = shift;
2861         my %opts = @_;
2863         if ($opts{'-remove_title'}) {
2864                 # remove title, i.e. first line of log
2865                 shift @$log;
2866         }
2867         # remove leading empty lines
2868         while (defined $log->[0] && $log->[0] eq "") {
2869                 shift @$log;
2870         }
2872         # print log
2873         my $signoff = 0;
2874         my $empty = 0;
2875         foreach my $line (@$log) {
2876                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2877                         $signoff = 1;
2878                         $empty = 0;
2879                         if (! $opts{'-remove_signoff'}) {
2880                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2881                                 next;
2882                         } else {
2883                                 # remove signoff lines
2884                                 next;
2885                         }
2886                 } else {
2887                         $signoff = 0;
2888                 }
2890                 # print only one empty line
2891                 # do not print empty line after signoff
2892                 if ($line eq "") {
2893                         next if ($empty || $signoff);
2894                         $empty = 1;
2895                 } else {
2896                         $empty = 0;
2897                 }
2899                 print format_log_line_html($line) . "<br/>\n";
2900         }
2902         if ($opts{'-final_empty_line'}) {
2903                 # end with single empty line
2904                 print "<br/>\n" unless $empty;
2905         }
2908 # return link target (what link points to)
2909 sub git_get_link_target {
2910         my $hash = shift;
2911         my $link_target;
2913         # read link
2914         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2915                 or return;
2916         {
2917                 local $/;
2918                 $link_target = <$fd>;
2919         }
2920         close $fd
2921                 or return;
2923         return $link_target;
2926 # given link target, and the directory (basedir) the link is in,
2927 # return target of link relative to top directory (top tree);
2928 # return undef if it is not possible (including absolute links).
2929 sub normalize_link_target {
2930         my ($link_target, $basedir, $hash_base) = @_;
2932         # we can normalize symlink target only if $hash_base is provided
2933         return unless $hash_base;
2935         # absolute symlinks (beginning with '/') cannot be normalized
2936         return if (substr($link_target, 0, 1) eq '/');
2938         # normalize link target to path from top (root) tree (dir)
2939         my $path;
2940         if ($basedir) {
2941                 $path = $basedir . '/' . $link_target;
2942         } else {
2943                 # we are in top (root) tree (dir)
2944                 $path = $link_target;
2945         }
2947         # remove //, /./, and /../
2948         my @path_parts;
2949         foreach my $part (split('/', $path)) {
2950                 # discard '.' and ''
2951                 next if (!$part || $part eq '.');
2952                 # handle '..'
2953                 if ($part eq '..') {
2954                         if (@path_parts) {
2955                                 pop @path_parts;
2956                         } else {
2957                                 # link leads outside repository (outside top dir)
2958                                 return;
2959                         }
2960                 } else {
2961                         push @path_parts, $part;
2962                 }
2963         }
2964         $path = join('/', @path_parts);
2966         return $path;
2969 # print tree entry (row of git_tree), but without encompassing <tr> element
2970 sub git_print_tree_entry {
2971         my ($t, $basedir, $hash_base, $have_blame) = @_;
2973         my %base_key = ();
2974         $base_key{'hash_base'} = $hash_base if defined $hash_base;
2976         # The format of a table row is: mode list link.  Where mode is
2977         # the mode of the entry, list is the name of the entry, an href,
2978         # and link is the action links of the entry.
2980         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
2981         if ($t->{'type'} eq "blob") {
2982                 print "<td class=\"list\">" .
2983                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2984                                                file_name=>"$basedir$t->{'name'}", %base_key),
2985                                 -class => "list"}, esc_path($t->{'name'}));
2986                 if (S_ISLNK(oct $t->{'mode'})) {
2987                         my $link_target = git_get_link_target($t->{'hash'});
2988                         if ($link_target) {
2989                                 my $norm_target = normalize_link_target($link_target, $basedir, $hash_base);
2990                                 if (defined $norm_target) {
2991                                         print " -> " .
2992                                               $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
2993                                                                      file_name=>$norm_target),
2994                                                        -title => $norm_target}, esc_path($link_target));
2995                                 } else {
2996                                         print " -> " . esc_path($link_target);
2997                                 }
2998                         }
2999                 }
3000                 print "</td>\n";
3001                 print "<td class=\"link\">";
3002                 print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
3003                                              file_name=>"$basedir$t->{'name'}", %base_key)},
3004                               "blob");
3005                 if ($have_blame) {
3006                         print " | " .
3007                               $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
3008                                                      file_name=>"$basedir$t->{'name'}", %base_key)},
3009                                       "blame");
3010                 }
3011                 if (defined $hash_base) {
3012                         print " | " .
3013                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3014                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
3015                                       "history");
3016                 }
3017                 print " | " .
3018                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
3019                                                file_name=>"$basedir$t->{'name'}")},
3020                                 "raw");
3021                 print "</td>\n";
3023         } elsif ($t->{'type'} eq "tree") {
3024                 print "<td class=\"list\">";
3025                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
3026                                              file_name=>"$basedir$t->{'name'}", %base_key)},
3027                               esc_path($t->{'name'}));
3028                 print "</td>\n";
3029                 print "<td class=\"link\">";
3030                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
3031                                              file_name=>"$basedir$t->{'name'}", %base_key)},
3032                               "tree");
3033                 if (defined $hash_base) {
3034                         print " | " .
3035                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3036                                                      file_name=>"$basedir$t->{'name'}")},
3037                                       "history");
3038                 }
3039                 print "</td>\n";
3040         } else {
3041                 # unknown object: we can only present history for it
3042                 # (this includes 'commit' object, i.e. submodule support)
3043                 print "<td class=\"list\">" .
3044                       esc_path($t->{'name'}) .
3045                       "</td>\n";
3046                 print "<td class=\"link\">";
3047                 if (defined $hash_base) {
3048                         print $cgi->a({-href => href(action=>"history",
3049                                                      hash_base=>$hash_base,
3050                                                      file_name=>"$basedir$t->{'name'}")},
3051                                       "history");
3052                 }
3053                 print "</td>\n";
3054         }
3057 ## ......................................................................
3058 ## functions printing large fragments of HTML
3060 # get pre-image filenames for merge (combined) diff
3061 sub fill_from_file_info {
3062         my ($diff, @parents) = @_;
3064         $diff->{'from_file'} = [ ];
3065         $diff->{'from_file'}[$diff->{'nparents'} - 1] = undef;
3066         for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
3067                 if ($diff->{'status'}[$i] eq 'R' ||
3068                     $diff->{'status'}[$i] eq 'C') {
3069                         $diff->{'from_file'}[$i] =
3070                                 git_get_path_by_hash($parents[$i], $diff->{'from_id'}[$i]);
3071                 }
3072         }
3074         return $diff;
3077 # is current raw difftree line of file deletion
3078 sub is_deleted {
3079         my $diffinfo = shift;
3081         return $diffinfo->{'to_id'} eq ('0' x 40);
3084 # does patch correspond to [previous] difftree raw line
3085 # $diffinfo  - hashref of parsed raw diff format
3086 # $patchinfo - hashref of parsed patch diff format
3087 #              (the same keys as in $diffinfo)
3088 sub is_patch_split {
3089         my ($diffinfo, $patchinfo) = @_;
3091         return defined $diffinfo && defined $patchinfo
3092                 && $diffinfo->{'to_file'} eq $patchinfo->{'to_file'};
3096 sub git_difftree_body {
3097         my ($difftree, $hash, @parents) = @_;
3098         my ($parent) = $parents[0];
3099         my ($have_blame) = gitweb_check_feature('blame');
3100         print "<div class=\"list_head\">\n";
3101         if ($#{$difftree} > 10) {
3102                 print(($#{$difftree} + 1) . " files changed:\n");
3103         }
3104         print "</div>\n";
3106         print "<table class=\"" .
3107               (@parents > 1 ? "combined " : "") .
3108               "diff_tree\">\n";
3110         # header only for combined diff in 'commitdiff' view
3111         my $has_header = @$difftree && @parents > 1 && $action eq 'commitdiff';
3112         if ($has_header) {
3113                 # table header
3114                 print "<thead><tr>\n" .
3115                        "<th></th><th></th>\n"; # filename, patchN link
3116                 for (my $i = 0; $i < @parents; $i++) {
3117                         my $par = $parents[$i];
3118                         print "<th>" .
3119                               $cgi->a({-href => href(action=>"commitdiff",
3120                                                      hash=>$hash, hash_parent=>$par),
3121                                        -title => 'commitdiff to parent number ' .
3122                                                   ($i+1) . ': ' . substr($par,0,7)},
3123                                       $i+1) .
3124                               "&nbsp;</th>\n";
3125                 }
3126                 print "</tr></thead>\n<tbody>\n";
3127         }
3129         my $alternate = 1;
3130         my $patchno = 0;
3131         foreach my $line (@{$difftree}) {
3132                 my $diff = parsed_difftree_line($line);
3134                 if ($alternate) {
3135                         print "<tr class=\"dark\">\n";
3136                 } else {
3137                         print "<tr class=\"light\">\n";
3138                 }
3139                 $alternate ^= 1;
3141                 if (exists $diff->{'nparents'}) { # combined diff
3143                         fill_from_file_info($diff, @parents)
3144                                 unless exists $diff->{'from_file'};
3146                         if (!is_deleted($diff)) {
3147                                 # file exists in the result (child) commit
3148                                 print "<td>" .
3149                                       $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3150                                                              file_name=>$diff->{'to_file'},
3151                                                              hash_base=>$hash),
3152                                               -class => "list"}, esc_path($diff->{'to_file'})) .
3153                                       "</td>\n";
3154                         } else {
3155                                 print "<td>" .
3156                                       esc_path($diff->{'to_file'}) .
3157                                       "</td>\n";
3158                         }
3160                         if ($action eq 'commitdiff') {
3161                                 # link to patch
3162                                 $patchno++;
3163                                 print "<td class=\"link\">" .
3164                                       $cgi->a({-href => "#patch$patchno"}, "patch") .
3165                                       " | " .
3166                                       "</td>\n";
3167                         }
3169                         my $has_history = 0;
3170                         my $not_deleted = 0;
3171                         for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
3172                                 my $hash_parent = $parents[$i];
3173                                 my $from_hash = $diff->{'from_id'}[$i];
3174                                 my $from_path = $diff->{'from_file'}[$i];
3175                                 my $status = $diff->{'status'}[$i];
3177                                 $has_history ||= ($status ne 'A');
3178                                 $not_deleted ||= ($status ne 'D');
3180                                 if ($status eq 'A') {
3181                                         print "<td  class=\"link\" align=\"right\"> | </td>\n";
3182                                 } elsif ($status eq 'D') {
3183                                         print "<td class=\"link\">" .
3184                                               $cgi->a({-href => href(action=>"blob",
3185                                                                      hash_base=>$hash,
3186                                                                      hash=>$from_hash,
3187                                                                      file_name=>$from_path)},
3188                                                       "blob" . ($i+1)) .
3189                                               " | </td>\n";
3190                                 } else {
3191                                         if ($diff->{'to_id'} eq $from_hash) {
3192                                                 print "<td class=\"link nochange\">";
3193                                         } else {
3194                                                 print "<td class=\"link\">";
3195                                         }
3196                                         print $cgi->a({-href => href(action=>"blobdiff",
3197                                                                      hash=>$diff->{'to_id'},
3198                                                                      hash_parent=>$from_hash,
3199                                                                      hash_base=>$hash,
3200                                                                      hash_parent_base=>$hash_parent,
3201                                                                      file_name=>$diff->{'to_file'},
3202                                                                      file_parent=>$from_path)},
3203                                                       "diff" . ($i+1)) .
3204                                               " | </td>\n";
3205                                 }
3206                         }
3208                         print "<td class=\"link\">";
3209                         if ($not_deleted) {
3210                                 print $cgi->a({-href => href(action=>"blob",
3211                                                              hash=>$diff->{'to_id'},
3212                                                              file_name=>$diff->{'to_file'},
3213                                                              hash_base=>$hash)},
3214                                               "blob");
3215                                 print " | " if ($has_history);
3216                         }
3217                         if ($has_history) {
3218                                 print $cgi->a({-href => href(action=>"history",
3219                                                              file_name=>$diff->{'to_file'},
3220                                                              hash_base=>$hash)},
3221                                               "history");
3222                         }
3223                         print "</td>\n";
3225                         print "</tr>\n";
3226                         next; # instead of 'else' clause, to avoid extra indent
3227                 }
3228                 # else ordinary diff
3230                 my ($to_mode_oct, $to_mode_str, $to_file_type);
3231                 my ($from_mode_oct, $from_mode_str, $from_file_type);
3232                 if ($diff->{'to_mode'} ne ('0' x 6)) {
3233                         $to_mode_oct = oct $diff->{'to_mode'};
3234                         if (S_ISREG($to_mode_oct)) { # only for regular file
3235                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
3236                         }
3237                         $to_file_type = file_type($diff->{'to_mode'});
3238                 }
3239                 if ($diff->{'from_mode'} ne ('0' x 6)) {
3240                         $from_mode_oct = oct $diff->{'from_mode'};
3241                         if (S_ISREG($to_mode_oct)) { # only for regular file
3242                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
3243                         }
3244                         $from_file_type = file_type($diff->{'from_mode'});
3245                 }
3247                 if ($diff->{'status'} eq "A") { # created
3248                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
3249                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
3250                         $mode_chng   .= "]</span>";
3251                         print "<td>";
3252                         print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3253                                                      hash_base=>$hash, file_name=>$diff->{'file'}),
3254                                       -class => "list"}, esc_path($diff->{'file'}));
3255                         print "</td>\n";
3256                         print "<td>$mode_chng</td>\n";
3257                         print "<td class=\"link\">";
3258                         if ($action eq 'commitdiff') {
3259                                 # link to patch
3260                                 $patchno++;
3261                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
3262                                 print " | ";
3263                         }
3264                         print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3265                                                      hash_base=>$hash, file_name=>$diff->{'file'})},
3266                                       "blob");
3267                         print "</td>\n";
3269                 } elsif ($diff->{'status'} eq "D") { # deleted
3270                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
3271                         print "<td>";
3272                         print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
3273                                                      hash_base=>$parent, file_name=>$diff->{'file'}),
3274                                        -class => "list"}, esc_path($diff->{'file'}));
3275                         print "</td>\n";
3276                         print "<td>$mode_chng</td>\n";
3277                         print "<td class=\"link\">";
3278                         if ($action eq 'commitdiff') {
3279                                 # link to patch
3280                                 $patchno++;
3281                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
3282                                 print " | ";
3283                         }
3284                         print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
3285                                                      hash_base=>$parent, file_name=>$diff->{'file'})},
3286                                       "blob") . " | ";
3287                         if ($have_blame) {
3288                                 print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
3289                                                              file_name=>$diff->{'file'})},
3290                                               "blame") . " | ";
3291                         }
3292                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
3293                                                      file_name=>$diff->{'file'})},
3294                                       "history");
3295                         print "</td>\n";
3297                 } elsif ($diff->{'status'} eq "M" || $diff->{'status'} eq "T") { # modified, or type changed
3298                         my $mode_chnge = "";
3299                         if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
3300                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
3301                                 if ($from_file_type ne $to_file_type) {
3302                                         $mode_chnge .= " from $from_file_type to $to_file_type";
3303                                 }
3304                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
3305                                         if ($from_mode_str && $to_mode_str) {
3306                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
3307                                         } elsif ($to_mode_str) {
3308                                                 $mode_chnge .= " mode: $to_mode_str";
3309                                         }
3310                                 }
3311                                 $mode_chnge .= "]</span>\n";
3312                         }
3313                         print "<td>";
3314                         print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3315                                                      hash_base=>$hash, file_name=>$diff->{'file'}),
3316                                       -class => "list"}, esc_path($diff->{'file'}));
3317                         print "</td>\n";
3318                         print "<td>$mode_chnge</td>\n";
3319                         print "<td class=\"link\">";
3320                         if ($action eq 'commitdiff') {
3321                                 # link to patch
3322                                 $patchno++;
3323                                 print $cgi->a({-href => "#patch$patchno"}, "patch") .
3324                                       " | ";
3325                         } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
3326                                 # "commit" view and modified file (not onlu mode changed)
3327                                 print $cgi->a({-href => href(action=>"blobdiff",
3328                                                              hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
3329                                                              hash_base=>$hash, hash_parent_base=>$parent,
3330                                                              file_name=>$diff->{'file'})},
3331                                               "diff") .
3332                                       " | ";
3333                         }
3334                         print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3335                                                      hash_base=>$hash, file_name=>$diff->{'file'})},
3336                                        "blob") . " | ";
3337                         if ($have_blame) {
3338                                 print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
3339                                                              file_name=>$diff->{'file'})},
3340                                               "blame") . " | ";
3341                         }
3342                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
3343                                                      file_name=>$diff->{'file'})},
3344                                       "history");
3345                         print "</td>\n";
3347                 } elsif ($diff->{'status'} eq "R" || $diff->{'status'} eq "C") { # renamed or copied
3348                         my %status_name = ('R' => 'moved', 'C' => 'copied');
3349                         my $nstatus = $status_name{$diff->{'status'}};
3350                         my $mode_chng = "";
3351                         if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
3352                                 # mode also for directories, so we cannot use $to_mode_str
3353                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
3354                         }
3355                         print "<td>" .
3356                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
3357                                                      hash=>$diff->{'to_id'}, file_name=>$diff->{'to_file'}),
3358                                       -class => "list"}, esc_path($diff->{'to_file'})) . "</td>\n" .
3359                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
3360                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
3361                                                      hash=>$diff->{'from_id'}, file_name=>$diff->{'from_file'}),
3362                                       -class => "list"}, esc_path($diff->{'from_file'})) .
3363                               " with " . (int $diff->{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
3364                               "<td class=\"link\">";
3365                         if ($action eq 'commitdiff') {
3366                                 # link to patch
3367                                 $patchno++;
3368                                 print $cgi->a({-href => "#patch$patchno"}, "patch") .
3369                                       " | ";
3370                         } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
3371                                 # "commit" view and modified file (not only pure rename or copy)
3372                                 print $cgi->a({-href => href(action=>"blobdiff",
3373                                                              hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
3374                                                              hash_base=>$hash, hash_parent_base=>$parent,
3375                                                              file_name=>$diff->{'to_file'}, file_parent=>$diff->{'from_file'})},
3376                                               "diff") .
3377                                       " | ";
3378                         }
3379                         print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
3380                                                      hash_base=>$parent, file_name=>$diff->{'to_file'})},
3381                                       "blob") . " | ";
3382                         if ($have_blame) {
3383                                 print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
3384                                                              file_name=>$diff->{'to_file'})},
3385                                               "blame") . " | ";
3386                         }
3387                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
3388                                                     file_name=>$diff->{'to_file'})},
3389                                       "history");
3390                         print "</td>\n";
3392                 } # we should not encounter Unmerged (U) or Unknown (X) status
3393                 print "</tr>\n";
3394         }
3395         print "</tbody>" if $has_header;
3396         print "</table>\n";
3399 sub git_patchset_body {
3400         my ($fd, $difftree, $hash, @hash_parents) = @_;
3401         my ($hash_parent) = $hash_parents[0];
3403         my $is_combined = (@hash_parents > 1);
3404         my $patch_idx = 0;
3405         my $patch_number = 0;
3406         my $patch_line;
3407         my $diffinfo;
3408         my $to_name;
3409         my (%from, %to);
3411         print "<div class=\"patchset\">\n";
3413         # skip to first patch
3414         while ($patch_line = <$fd>) {
3415                 chomp $patch_line;
3417                 last if ($patch_line =~ m/^diff /);
3418         }
3420  PATCH:
3421         while ($patch_line) {
3423                 # parse "git diff" header line
3424                 if ($patch_line =~ m/^diff --git (\"(?:[^\\\"]*(?:\\.[^\\\"]*)*)\"|[^ "]*) (.*)$/) {
3425                         # $1 is from_name, which we do not use
3426                         $to_name = unquote($2);
3427                         $to_name =~ s!^b/!!;
3428                 } elsif ($patch_line =~ m/^diff --(cc|combined) ("?.*"?)$/) {
3429                         # $1 is 'cc' or 'combined', which we do not use
3430                         $to_name = unquote($2);
3431                 } else {
3432                         $to_name = undef;
3433                 }
3435                 # check if current patch belong to current raw line
3436                 # and parse raw git-diff line if needed
3437                 if (is_patch_split($diffinfo, { 'to_file' => $to_name })) {
3438                         # this is continuation of a split patch
3439                         print "<div class=\"patch cont\">\n";
3440                 } else {
3441                         # advance raw git-diff output if needed
3442                         $patch_idx++ if defined $diffinfo;
3444                         # read and prepare patch information
3445                         $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
3447                         # compact combined diff output can have some patches skipped
3448                         # find which patch (using pathname of result) we are at now;
3449                         if ($is_combined) {
3450                                 while ($to_name ne $diffinfo->{'to_file'}) {
3451                                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
3452                                               format_diff_cc_simplified($diffinfo, @hash_parents) .
3453                                               "</div>\n";  # class="patch"
3455                                         $patch_idx++;
3456                                         $patch_number++;
3458                                         last if $patch_idx > $#$difftree;
3459                                         $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
3460                                 }
3461                         }
3463                         # modifies %from, %to hashes
3464                         parse_from_to_diffinfo($diffinfo, \%from, \%to, @hash_parents);
3466                         # this is first patch for raw difftree line with $patch_idx index
3467                         # we index @$difftree array from 0, but number patches from 1
3468                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
3469                 }
3471                 # git diff header
3472                 #assert($patch_line =~ m/^diff /) if DEBUG;
3473                 #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
3474                 $patch_number++;
3475                 # print "git diff" header
3476                 print format_git_diff_header_line($patch_line, $diffinfo,
3477                                                   \%from, \%to);
3479                 # print extended diff header
3480                 print "<div class=\"diff extended_header\">\n";
3481         EXTENDED_HEADER:
3482                 while ($patch_line = <$fd>) {
3483                         chomp $patch_line;
3485                         last EXTENDED_HEADER if ($patch_line =~ m/^--- |^diff /);
3487                         print format_extended_diff_header_line($patch_line, $diffinfo,
3488                                                                \%from, \%to);
3489                 }
3490                 print "</div>\n"; # class="diff extended_header"
3492                 # from-file/to-file diff header
3493                 if (! $patch_line) {
3494                         print "</div>\n"; # class="patch"
3495                         last PATCH;
3496                 }
3497                 next PATCH if ($patch_line =~ m/^diff /);
3498                 #assert($patch_line =~ m/^---/) if DEBUG;
3500                 my $last_patch_line = $patch_line;
3501                 $patch_line = <$fd>;
3502                 chomp $patch_line;
3503                 #assert($patch_line =~ m/^\+\+\+/) if DEBUG;
3505                 print format_diff_from_to_header($last_patch_line, $patch_line,
3506                                                  $diffinfo, \%from, \%to,
3507                                                  @hash_parents);
3509                 # the patch itself
3510         LINE:
3511                 while ($patch_line = <$fd>) {
3512                         chomp $patch_line;
3514                         next PATCH if ($patch_line =~ m/^diff /);
3516                         print format_diff_line($patch_line, \%from, \%to);
3517                 }
3519         } continue {
3520                 print "</div>\n"; # class="patch"
3521         }
3523         # for compact combined (--cc) format, with chunk and patch simpliciaction
3524         # patchset might be empty, but there might be unprocessed raw lines
3525         for (++$patch_idx if $patch_number > 0;
3526              $patch_idx < @$difftree;
3527              ++$patch_idx) {
3528                 # read and prepare patch information
3529                 $diffinfo = parsed_difftree_line($difftree->[$patch_idx]);
3531                 # generate anchor for "patch" links in difftree / whatchanged part
3532                 print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n" .
3533                       format_diff_cc_simplified($diffinfo, @hash_parents) .
3534                       "</div>\n";  # class="patch"
3536                 $patch_number++;
3537         }
3539         if ($patch_number == 0) {
3540                 if (@hash_parents > 1) {
3541                         print "<div class=\"diff nodifferences\">Trivial merge</div>\n";
3542                 } else {
3543                         print "<div class=\"diff nodifferences\">No differences found</div>\n";
3544                 }
3545         }
3547         print "</div>\n"; # class="patchset"
3550 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3552 sub git_project_list_body {
3553         my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
3555         my ($check_forks) = gitweb_check_feature('forks');
3557         my @projects;
3558         foreach my $pr (@$projlist) {
3559                 my (@aa) = git_get_last_activity($pr->{'path'});
3560                 unless (@aa) {
3561                         next;
3562                 }
3563                 ($pr->{'age'}, $pr->{'age_string'}) = @aa;
3564                 if (!defined $pr->{'descr'}) {
3565                         my $descr = git_get_project_description($pr->{'path'}) || "";
3566                         $pr->{'descr_long'} = to_utf8($descr);
3567                         $pr->{'descr'} = chop_str($descr, $projects_list_description_width, 5);
3568                 }
3569                 if (!defined $pr->{'owner'}) {
3570                         $pr->{'owner'} = git_get_project_owner("$pr->{'path'}") || "";
3571                 }
3572                 if ($check_forks) {
3573                         my $pname = $pr->{'path'};
3574                         if (($pname =~ s/\.git$//) &&
3575                             ($pname !~ /\/$/) &&
3576                             (-d "$projectroot/$pname")) {
3577                                 $pr->{'forks'} = "-d $projectroot/$pname";
3578                         }
3579                         else {
3580                                 $pr->{'forks'} = 0;
3581                         }
3582                 }
3583                 push @projects, $pr;
3584         }
3586         $order ||= $default_projects_order;
3587         $from = 0 unless defined $from;
3588         $to = $#projects if (!defined $to || $#projects < $to);
3590         print "<table class=\"project_list\">\n";
3591         unless ($no_header) {
3592                 print "<tr>\n";
3593                 if ($check_forks) {
3594                         print "<th></th>\n";
3595                 }
3596                 if ($order eq "project") {
3597                         @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
3598                         print "<th>Project</th>\n";
3599                 } else {
3600                         print "<th>" .
3601                               $cgi->a({-href => href(project=>undef, order=>'project'),
3602                                        -class => "header"}, "Project") .
3603                               "</th>\n";
3604                 }
3605                 if ($order eq "descr") {
3606                         @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
3607                         print "<th>Description</th>\n";
3608                 } else {
3609                         print "<th>" .
3610                               $cgi->a({-href => href(project=>undef, order=>'descr'),
3611                                        -class => "header"}, "Description") .
3612                               "</th>\n";
3613                 }
3614                 if ($order eq "owner") {
3615                         @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
3616                         print "<th>Owner</th>\n";
3617                 } else {
3618                         print "<th>" .
3619                               $cgi->a({-href => href(project=>undef, order=>'owner'),
3620                                        -class => "header"}, "Owner") .
3621                               "</th>\n";
3622                 }
3623                 if ($order eq "age") {
3624                         @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
3625                         print "<th>Last Change</th>\n";
3626                 } else {
3627                         print "<th>" .
3628                               $cgi->a({-href => href(project=>undef, order=>'age'),
3629                                        -class => "header"}, "Last Change") .
3630                               "</th>\n";
3631                 }
3632                 print "<th></th>\n" .
3633                       "</tr>\n";
3634         }
3635         my $alternate = 1;
3636         for (my $i = $from; $i <= $to; $i++) {
3637                 my $pr = $projects[$i];
3638                 if ($alternate) {
3639                         print "<tr class=\"dark\">\n";
3640                 } else {
3641                         print "<tr class=\"light\">\n";
3642                 }
3643                 $alternate ^= 1;
3644                 if ($check_forks) {
3645                         print "<td>";
3646                         if ($pr->{'forks'}) {
3647                                 print "<!-- $pr->{'forks'} -->\n";
3648                                 print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
3649                         }
3650                         print "</td>\n";
3651                 }
3652                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
3653                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
3654                       "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
3655                                         -class => "list", -title => $pr->{'descr_long'}},
3656                                         esc_html($pr->{'descr'})) . "</td>\n" .
3657                       "<td><i>" . chop_and_escape_str($pr->{'owner'}, 15) . "</i></td>\n";
3658                 print "<td class=\"". age_class($pr->{'age'}) . "\">" .
3659                       (defined $pr->{'age_string'} ? $pr->{'age_string'} : "No commits") . "</td>\n" .
3660                       "<td class=\"link\">" .
3661                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
3662                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
3663                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
3664                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
3665                       ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
3666                       "</td>\n" .
3667                       "</tr>\n";
3668         }
3669         if (defined $extra) {
3670                 print "<tr>\n";
3671                 if ($check_forks) {
3672                         print "<td></td>\n";
3673                 }
3674                 print "<td colspan=\"5\">$extra</td>\n" .
3675                       "</tr>\n";
3676         }
3677         print "</table>\n";
3680 sub git_shortlog_body {
3681         # uses global variable $project
3682         my ($commitlist, $from, $to, $refs, $extra) = @_;
3684         $from = 0 unless defined $from;
3685         $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3687         print "<table class=\"shortlog\">\n";
3688         my $alternate = 1;
3689         for (my $i = $from; $i <= $to; $i++) {
3690                 my %co = %{$commitlist->[$i]};
3691                 my $commit = $co{'id'};
3692                 my $ref = format_ref_marker($refs, $commit);
3693                 if ($alternate) {
3694                         print "<tr class=\"dark\">\n";
3695                 } else {
3696                         print "<tr class=\"light\">\n";
3697                 }
3698                 $alternate ^= 1;
3699                 my $author = chop_and_escape_str($co{'author_name'}, 10);
3700                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
3701                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3702                       "<td><i>" . $author . "</i></td>\n" .
3703                       "<td>";
3704                 print format_subject_html($co{'title'}, $co{'title_short'},
3705                                           href(action=>"commit", hash=>$commit), $ref);
3706                 print "</td>\n" .
3707                       "<td class=\"link\">" .
3708                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
3709                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
3710                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
3711                 my $snapshot_links = format_snapshot_links($commit);
3712                 if (defined $snapshot_links) {
3713                         print " | " . $snapshot_links;
3714                 }
3715                 print "</td>\n" .
3716                       "</tr>\n";
3717         }
3718         if (defined $extra) {
3719                 print "<tr>\n" .
3720                       "<td colspan=\"4\">$extra</td>\n" .
3721                       "</tr>\n";
3722         }
3723         print "</table>\n";
3726 sub git_history_body {
3727         # Warning: assumes constant type (blob or tree) during history
3728         my ($commitlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
3730         $from = 0 unless defined $from;
3731         $to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
3733         print "<table class=\"history\">\n";
3734         my $alternate = 1;
3735         for (my $i = $from; $i <= $to; $i++) {
3736                 my %co = %{$commitlist->[$i]};
3737                 if (!%co) {
3738                         next;
3739                 }
3740                 my $commit = $co{'id'};
3742                 my $ref = format_ref_marker($refs, $commit);
3744                 if ($alternate) {
3745                         print "<tr class=\"dark\">\n";
3746                 } else {
3747                         print "<tr class=\"light\">\n";
3748                 }
3749                 $alternate ^= 1;
3750         # shortlog uses      chop_str($co{'author_name'}, 10)
3751                 my $author = chop_and_escape_str($co{'author_name'}, 15, 3);
3752                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3753                       "<td><i>" . $author . "</i></td>\n" .
3754                       "<td>";
3755                 # originally git_history used chop_str($co{'title'}, 50)
3756                 print format_subject_html($co{'title'}, $co{'title_short'},
3757                                           href(action=>"commit", hash=>$commit), $ref);
3758                 print "</td>\n" .
3759                       "<td class=\"link\">" .
3760                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
3761                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
3763                 if ($ftype eq 'blob') {
3764                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
3765                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
3766                         if (defined $blob_current && defined $blob_parent &&
3767                                         $blob_current ne $blob_parent) {
3768                                 print " | " .
3769                                         $cgi->a({-href => href(action=>"blobdiff",
3770                                                                hash=>$blob_current, hash_parent=>$blob_parent,
3771                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
3772                                                                file_name=>$file_name)},
3773                                                 "diff to current");
3774                         }
3775                 }
3776                 print "</td>\n" .
3777                       "</tr>\n";
3778         }
3779         if (defined $extra) {
3780                 print "<tr>\n" .
3781                       "<td colspan=\"4\">$extra</td>\n" .
3782                       "</tr>\n";
3783         }
3784         print "</table>\n";
3787 sub git_tags_body {
3788         # uses global variable $project
3789         my ($taglist, $from, $to, $extra) = @_;
3790         $from = 0 unless defined $from;
3791         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
3793         print "<table class=\"tags\">\n";
3794         my $alternate = 1;
3795         for (my $i = $from; $i <= $to; $i++) {
3796                 my $entry = $taglist->[$i];
3797                 my %tag = %$entry;
3798                 my $comment = $tag{'subject'};
3799                 my $comment_short;
3800                 if (defined $comment) {
3801                         $comment_short = chop_str($comment, 30, 5);
3802                 }
3803                 if ($alternate) {
3804                         print "<tr class=\"dark\">\n";
3805                 } else {
3806                         print "<tr class=\"light\">\n";
3807                 }
3808                 $alternate ^= 1;
3809                 if (defined $tag{'age'}) {
3810                         print "<td><i>$tag{'age'}</i></td>\n";
3811                 } else {
3812                         print "<td></td>\n";
3813                 }
3814                 print "<td>" .
3815                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
3816                                -class => "list name"}, esc_html($tag{'name'})) .
3817                       "</td>\n" .
3818                       "<td>";
3819                 if (defined $comment) {
3820                         print format_subject_html($comment, $comment_short,
3821                                                   href(action=>"tag", hash=>$tag{'id'}));
3822                 }
3823                 print "</td>\n" .
3824                       "<td class=\"selflink\">";
3825                 if ($tag{'type'} eq "tag") {
3826                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
3827                 } else {
3828                         print "&nbsp;";
3829                 }
3830                 print "</td>\n" .
3831                       "<td class=\"link\">" . " | " .
3832                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
3833                 if ($tag{'reftype'} eq "commit") {
3834                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'fullname'})}, "shortlog") .
3835                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'fullname'})}, "log");
3836                 } elsif ($tag{'reftype'} eq "blob") {
3837                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
3838                 }
3839                 print "</td>\n" .
3840                       "</tr>";
3841         }
3842         if (defined $extra) {
3843                 print "<tr>\n" .
3844                       "<td colspan=\"5\">$extra</td>\n" .
3845                       "</tr>\n";
3846         }
3847         print "</table>\n";
3850 sub git_heads_body {
3851         # uses global variable $project
3852         my ($headlist, $head, $from, $to, $extra) = @_;
3853         $from = 0 unless defined $from;
3854         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
3856         print "<table class=\"heads\">\n";
3857         my $alternate = 1;
3858         for (my $i = $from; $i <= $to; $i++) {
3859                 my $entry = $headlist->[$i];
3860                 my %ref = %$entry;
3861                 my $curr = $ref{'id'} eq $head;
3862                 if ($alternate) {
3863                         print "<tr class=\"dark\">\n";
3864                 } else {
3865                         print "<tr class=\"light\">\n";
3866                 }
3867                 $alternate ^= 1;
3868                 print "<td><i>$ref{'age'}</i></td>\n" .
3869                       ($curr ? "<td class=\"current_head\">" : "<td>") .
3870                       $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'fullname'}),
3871                                -class => "list name"},esc_html($ref{'name'})) .
3872                       "</td>\n" .
3873                       "<td class=\"link\">" .
3874                       $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'fullname'})}, "shortlog") . " | " .
3875                       $cgi->a({-href => href(action=>"log", hash=>$ref{'fullname'})}, "log") . " | " .
3876                       $cgi->a({-href => href(action=>"tree", hash=>$ref{'fullname'}, hash_base=>$ref{'name'})}, "tree") .
3877                       "</td>\n" .
3878                       "</tr>";
3879         }
3880         if (defined $extra) {
3881                 print "<tr>\n" .
3882                       "<td colspan=\"3\">$extra</td>\n" .
3883                       "</tr>\n";
3884         }
3885         print "</table>\n";
3888 sub git_search_grep_body {
3889         my ($commitlist, $from, $to, $extra) = @_;
3890         $from = 0 unless defined $from;
3891         $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3893         print "<table class=\"commit_search\">\n";
3894         my $alternate = 1;
3895         for (my $i = $from; $i <= $to; $i++) {
3896                 my %co = %{$commitlist->[$i]};
3897                 if (!%co) {
3898                         next;
3899                 }
3900                 my $commit = $co{'id'};
3901                 if ($alternate) {
3902                         print "<tr class=\"dark\">\n";
3903                 } else {
3904                         print "<tr class=\"light\">\n";
3905                 }
3906                 $alternate ^= 1;
3907                 my $author = chop_and_escape_str($co{'author_name'}, 15, 5);
3908                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3909                       "<td><i>" . $author . "</i></td>\n" .
3910                       "<td>" .
3911                       $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3912                                -class => "list subject"},
3913                               chop_and_escape_str($co{'title'}, 50) . "<br/>");
3914                 my $comment = $co{'comment'};
3915                 foreach my $line (@$comment) {
3916                         if ($line =~ m/^(.*?)($search_regexp)(.*)$/i) {
3917                                 my ($lead, $match, $trail) = ($1, $2, $3);
3918                                 $match = chop_str($match, 70, 5, 'center');
3919                                 my $contextlen = int((80 - length($match))/2);
3920                                 $contextlen = 30 if ($contextlen > 30);
3921                                 $lead  = chop_str($lead,  $contextlen, 10, 'left');
3922                                 $trail = chop_str($trail, $contextlen, 10, 'right');
3924                                 $lead  = esc_html($lead);
3925                                 $match = esc_html($match);
3926                                 $trail = esc_html($trail);
3928                                 print "$lead<span class=\"match\">$match</span>$trail<br />";
3929                         }
3930                 }
3931                 print "</td>\n" .
3932                       "<td class=\"link\">" .
3933                       $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3934                       " | " .
3935                       $cgi->a({-href => href(action=>"commitdiff", hash=>$co{'id'})}, "commitdiff") .
3936                       " | " .
3937                       $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3938                 print "</td>\n" .
3939                       "</tr>\n";
3940         }
3941         if (defined $extra) {
3942                 print "<tr>\n" .
3943                       "<td colspan=\"3\">$extra</td>\n" .
3944                       "</tr>\n";
3945         }
3946         print "</table>\n";
3949 ## ======================================================================
3950 ## ======================================================================
3951 ## actions
3953 sub git_project_list {
3954         my $order = $cgi->param('o');
3955         if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3956                 die_error(undef, "Unknown order parameter");
3957         }
3959         my @list = git_get_projects_list();
3960         if (!@list) {
3961                 die_error(undef, "No projects found");
3962         }
3964         git_header_html();
3965         if (-f $home_text) {
3966                 print "<div class=\"index_include\">\n";
3967                 open (my $fd, $home_text);
3968                 print <$fd>;
3969                 close $fd;
3970                 print "</div>\n";
3971         }
3972         git_project_list_body(\@list, $order);
3973         git_footer_html();
3976 sub git_forks {
3977         my $order = $cgi->param('o');
3978         if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3979                 die_error(undef, "Unknown order parameter");
3980         }
3982         my @list = git_get_projects_list($project);
3983         if (!@list) {
3984                 die_error(undef, "No forks found");
3985         }
3987         git_header_html();
3988         git_print_page_nav('','');
3989         git_print_header_div('summary', "$project forks");
3990         git_project_list_body(\@list, $order);
3991         git_footer_html();
3994 sub git_project_index {
3995         my @projects = git_get_projects_list($project);
3997         print $cgi->header(
3998                 -type => 'text/plain',
3999                 -charset => 'utf-8',
4000                 -content_disposition => 'inline; filename="index.aux"');
4002         foreach my $pr (@projects) {
4003                 if (!exists $pr->{'owner'}) {
4004                         $pr->{'owner'} = git_get_project_owner("$pr->{'path'}");
4005                 }
4007                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
4008                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
4009                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
4010                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
4011                 $path  =~ s/ /\+/g;
4012                 $owner =~ s/ /\+/g;
4014                 print "$path $owner\n";
4015         }
4018 sub git_summary {
4019         my $descr = git_get_project_description($project) || "none";
4020         my %co = parse_commit("HEAD");
4021         my %cd = %co ? parse_date($co{'committer_epoch'}, $co{'committer_tz'}) : ();
4022         my $head = $co{'id'};
4024         my $owner = git_get_project_owner($project);
4026         my $refs = git_get_references();
4027         # These get_*_list functions return one more to allow us to see if
4028         # there are more ...
4029         my @taglist  = git_get_tags_list(16);
4030         my @headlist = git_get_heads_list(16);
4031         my @forklist;
4032         my ($check_forks) = gitweb_check_feature('forks');
4034         if ($check_forks) {
4035                 @forklist = git_get_projects_list($project);
4036         }
4038         git_header_html();
4039         git_print_page_nav('summary','', $head);
4041         print "<div class=\"title\">&nbsp;</div>\n";
4042         print "<table class=\"projects_list\">\n" .
4043               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
4044               "<tr><td>owner</td><td>" . esc_html($owner) . "</td></tr>\n";
4045         if (defined $cd{'rfc2822'}) {
4046                 print "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
4047         }
4049         # use per project git URL list in $projectroot/$project/cloneurl
4050         # or make project git URL from git base URL and project name
4051         my $url_tag = "URL";
4052         my @url_list = git_get_project_url_list($project);
4053         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
4054         foreach my $git_url (@url_list) {
4055                 next unless $git_url;
4056                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
4057                 $url_tag = "";
4058         }
4059         print "</table>\n";
4061         if (-s "$projectroot/$project/README.html") {
4062                 if (open my $fd, "$projectroot/$project/README.html") {
4063                         print "<div class=\"title\">readme</div>\n" .
4064                               "<div class=\"readme\">\n";
4065                         print $_ while (<$fd>);
4066                         print "\n</div>\n"; # class="readme"
4067                         close $fd;
4068                 }
4069         }
4071         # we need to request one more than 16 (0..15) to check if
4072         # those 16 are all
4073         my @commitlist = $head ? parse_commits($head, 17) : ();
4074         if (@commitlist) {
4075                 git_print_header_div('shortlog');
4076                 git_shortlog_body(\@commitlist, 0, 15, $refs,
4077                                   $#commitlist <=  15 ? undef :
4078                                   $cgi->a({-href => href(action=>"shortlog")}, "..."));
4079         }
4081         if (@taglist) {
4082                 git_print_header_div('tags');
4083                 git_tags_body(\@taglist, 0, 15,
4084                               $#taglist <=  15 ? undef :
4085                               $cgi->a({-href => href(action=>"tags")}, "..."));
4086         }
4088         if (@headlist) {
4089                 git_print_header_div('heads');
4090                 git_heads_body(\@headlist, $head, 0, 15,
4091                                $#headlist <= 15 ? undef :
4092                                $cgi->a({-href => href(action=>"heads")}, "..."));
4093         }
4095         if (@forklist) {
4096                 git_print_header_div('forks');
4097                 git_project_list_body(\@forklist, undef, 0, 15,
4098                                       $#forklist <= 15 ? undef :
4099                                       $cgi->a({-href => href(action=>"forks")}, "..."),
4100                                       'noheader');
4101         }
4103         git_footer_html();
4106 sub git_tag {
4107         my $head = git_get_head_hash($project);
4108         git_header_html();
4109         git_print_page_nav('','', $head,undef,$head);
4110         my %tag = parse_tag($hash);
4112         if (! %tag) {
4113                 die_error(undef, "Unknown tag object");
4114         }
4116         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
4117         print "<div class=\"title_text\">\n" .
4118               "<table class=\"object_header\">\n" .
4119               "<tr>\n" .
4120               "<td>object</td>\n" .
4121               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
4122                                $tag{'object'}) . "</td>\n" .
4123               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
4124                                               $tag{'type'}) . "</td>\n" .
4125               "</tr>\n";
4126         if (defined($tag{'author'})) {
4127                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
4128                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
4129                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
4130                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
4131                         "</td></tr>\n";
4132         }
4133         print "</table>\n\n" .
4134               "</div>\n";
4135         print "<div class=\"page_body\">";
4136         my $comment = $tag{'comment'};
4137         foreach my $line (@$comment) {
4138                 chomp $line;
4139                 print esc_html($line, -nbsp=>1) . "<br/>\n";
4140         }
4141         print "</div>\n";
4142         git_footer_html();
4145 sub git_blame2 {
4146         my $fd;
4147         my $ftype;
4149         my ($have_blame) = gitweb_check_feature('blame');
4150         if (!$have_blame) {
4151                 die_error('403 Permission denied', "Permission denied");
4152         }
4153         die_error('404 Not Found', "File name not defined") if (!$file_name);
4154         $hash_base ||= git_get_head_hash($project);
4155         die_error(undef, "Couldn't find base commit") unless ($hash_base);
4156         my %co = parse_commit($hash_base)
4157                 or die_error(undef, "Reading commit failed");
4158         if (!defined $hash) {
4159                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
4160                         or die_error(undef, "Error looking up file");
4161         }
4162         $ftype = git_get_type($hash);
4163         if ($ftype !~ "blob") {
4164                 die_error('400 Bad Request', "Object is not a blob");
4165         }
4166         open ($fd, "-|", git_cmd(), "blame", '-p', '--',
4167               $file_name, $hash_base)
4168                 or die_error(undef, "Open git-blame failed");
4169         git_header_html();
4170         my $formats_nav =
4171                 $cgi->a({-href => href(action=>"blob", -replay=>1)},
4172                         "blob") .
4173                 " | " .
4174                 $cgi->a({-href => href(action=>"history", -replay=>1)},
4175                         "history") .
4176                 " | " .
4177                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
4178                         "HEAD");
4179         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4180         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4181         git_print_page_path($file_name, $ftype, $hash_base);
4182         my @rev_color = (qw(light2 dark2));
4183         my $num_colors = scalar(@rev_color);
4184         my $current_color = 0;
4185         my $last_rev;
4186         print <<HTML;
4187 <div class="page_body">
4188 <table class="blame">
4189 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
4190 HTML
4191         my %metainfo = ();
4192         while (1) {
4193                 $_ = <$fd>;
4194                 last unless defined $_;
4195                 my ($full_rev, $orig_lineno, $lineno, $group_size) =
4196                     /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
4197                 if (!exists $metainfo{$full_rev}) {
4198                         $metainfo{$full_rev} = {};
4199                 }
4200                 my $meta = $metainfo{$full_rev};
4201                 while (<$fd>) {
4202                         last if (s/^\t//);
4203                         if (/^(\S+) (.*)$/) {
4204                                 $meta->{$1} = $2;
4205                         }
4206                 }
4207                 my $data = $_;
4208                 chomp $data;
4209                 my $rev = substr($full_rev, 0, 8);
4210                 my $author = $meta->{'author'};
4211                 my %date = parse_date($meta->{'author-time'},
4212                                       $meta->{'author-tz'});
4213                 my $date = $date{'iso-tz'};
4214                 if ($group_size) {
4215                         $current_color = ++$current_color % $num_colors;
4216                 }
4217                 print "<tr class=\"$rev_color[$current_color]\">\n";
4218                 if ($group_size) {
4219                         print "<td class=\"sha1\"";
4220                         print " title=\"". esc_html($author) . ", $date\"";
4221                         print " rowspan=\"$group_size\"" if ($group_size > 1);
4222                         print ">";
4223                         print $cgi->a({-href => href(action=>"commit",
4224                                                      hash=>$full_rev,
4225                                                      file_name=>$file_name)},
4226                                       esc_html($rev));
4227                         print "</td>\n";
4228                 }
4229                 open (my $dd, "-|", git_cmd(), "rev-parse", "$full_rev^")
4230                         or die_error(undef, "Open git-rev-parse failed");
4231                 my $parent_commit = <$dd>;
4232                 close $dd;
4233                 chomp($parent_commit);
4234                 my $blamed = href(action => 'blame',
4235                                   file_name => $meta->{'filename'},
4236                                   hash_base => $parent_commit);
4237                 print "<td class=\"linenr\">";
4238                 print $cgi->a({ -href => "$blamed#l$orig_lineno",
4239                                 -id => "l$lineno",
4240                                 -class => "linenr" },
4241                               esc_html($lineno));
4242                 print "</td>";
4243                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
4244                 print "</tr>\n";
4245         }
4246         print "</table>\n";
4247         print "</div>";
4248         close $fd
4249                 or print "Reading blob failed\n";
4250         git_footer_html();
4253 sub git_blame {
4254         my $fd;
4256         my ($have_blame) = gitweb_check_feature('blame');
4257         if (!$have_blame) {
4258                 die_error('403 Permission denied', "Permission denied");
4259         }
4260         die_error('404 Not Found', "File name not defined") if (!$file_name);
4261         $hash_base ||= git_get_head_hash($project);
4262         die_error(undef, "Couldn't find base commit") unless ($hash_base);
4263         my %co = parse_commit($hash_base)
4264                 or die_error(undef, "Reading commit failed");
4265         if (!defined $hash) {
4266                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
4267                         or die_error(undef, "Error lookup file");
4268         }
4269         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
4270                 or die_error(undef, "Open git-annotate failed");
4271         git_header_html();
4272         my $formats_nav =
4273                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
4274                         "blob") .
4275                 " | " .
4276                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
4277                         "history") .
4278                 " | " .
4279                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
4280                         "HEAD");
4281         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4282         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4283         git_print_page_path($file_name, 'blob', $hash_base);
4284         print "<div class=\"page_body\">\n";
4285         print <<HTML;
4286 <table class="blame">
4287   <tr>
4288     <th>Commit</th>
4289     <th>Age</th>
4290     <th>Author</th>
4291     <th>Line</th>
4292     <th>Data</th>
4293   </tr>
4294 HTML
4295         my @line_class = (qw(light dark));
4296         my $line_class_len = scalar (@line_class);
4297         my $line_class_num = $#line_class;
4298         while (my $line = <$fd>) {
4299                 my $long_rev;
4300                 my $short_rev;
4301                 my $author;
4302                 my $time;
4303                 my $lineno;
4304                 my $data;
4305                 my $age;
4306                 my $age_str;
4307                 my $age_class;
4309                 chomp $line;
4310                 $line_class_num = ($line_class_num + 1) % $line_class_len;
4312                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
4313                         $long_rev = $1;
4314                         $author   = $2;
4315                         $time     = $3;
4316                         $lineno   = $4;
4317                         $data     = $5;
4318                 } else {
4319                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
4320                         next;
4321                 }
4322                 $short_rev  = substr ($long_rev, 0, 8);
4323                 $age        = time () - $time;
4324                 $age_str    = age_string ($age);
4325                 $age_str    =~ s/ /&nbsp;/g;
4326                 $age_class  = age_class($age);
4327                 $author     = esc_html ($author);
4328                 $author     =~ s/ /&nbsp;/g;
4330                 $data = untabify($data);
4331                 $data = esc_html ($data);
4333                 print <<HTML;
4334   <tr class="$line_class[$line_class_num]">
4335     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
4336     <td class="$age_class">$age_str</td>
4337     <td>$author</td>
4338     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
4339     <td class="pre">$data</td>
4340   </tr>
4341 HTML
4342         } # while (my $line = <$fd>)
4343         print "</table>\n\n";
4344         close $fd
4345                 or print "Reading blob failed.\n";
4346         print "</div>";
4347         git_footer_html();
4350 sub git_tags {
4351         my $head = git_get_head_hash($project);
4352         git_header_html();
4353         git_print_page_nav('','', $head,undef,$head);
4354         git_print_header_div('summary', $project);
4356         my @tagslist = git_get_tags_list();
4357         if (@tagslist) {
4358                 git_tags_body(\@tagslist);
4359         }
4360         git_footer_html();
4363 sub git_heads {
4364         my $head = git_get_head_hash($project);
4365         git_header_html();
4366         git_print_page_nav('','', $head,undef,$head);
4367         git_print_header_div('summary', $project);
4369         my @headslist = git_get_heads_list();
4370         if (@headslist) {
4371                 git_heads_body(\@headslist, $head);
4372         }
4373         git_footer_html();
4376 sub git_blob_plain {
4377         my $expires;
4379         if (!defined $hash) {
4380                 if (defined $file_name) {
4381                         my $base = $hash_base || git_get_head_hash($project);
4382                         $hash = git_get_hash_by_path($base, $file_name, "blob")
4383                                 or die_error(undef, "Error lookup file");
4384                 } else {
4385                         die_error(undef, "No file name defined");
4386                 }
4387         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4388                 # blobs defined by non-textual hash id's can be cached
4389                 $expires = "+1d";
4390         }
4392         my $type = shift;
4393         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
4394                 or die_error(undef, "Couldn't cat $file_name, $hash");
4396         $type ||= blob_mimetype($fd, $file_name);
4398         # save as filename, even when no $file_name is given
4399         my $save_as = "$hash";
4400         if (defined $file_name) {
4401                 $save_as = $file_name;
4402         } elsif ($type =~ m/^text\//) {
4403                 $save_as .= '.txt';
4404         }
4406         print $cgi->header(
4407                 -type => "$type",
4408                 -expires=>$expires,
4409                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
4410         undef $/;
4411         binmode STDOUT, ':raw';
4412         print <$fd>;
4413         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
4414         $/ = "\n";
4415         close $fd;
4418 sub git_blob {
4419         my $expires;
4421         if (!defined $hash) {
4422                 if (defined $file_name) {
4423                         my $base = $hash_base || git_get_head_hash($project);
4424                         $hash = git_get_hash_by_path($base, $file_name, "blob")
4425                                 or die_error(undef, "Error lookup file");
4426                 } else {
4427                         die_error(undef, "No file name defined");
4428                 }
4429         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4430                 # blobs defined by non-textual hash id's can be cached
4431                 $expires = "+1d";
4432         }
4434         my ($have_blame) = gitweb_check_feature('blame');
4435         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
4436                 or die_error(undef, "Couldn't cat $file_name, $hash");
4437         my $mimetype = blob_mimetype($fd, $file_name);
4438         if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)! && -B $fd) {
4439                 close $fd;
4440                 return git_blob_plain($mimetype);
4441         }
4442         # we can have blame only for text/* mimetype
4443         $have_blame &&= ($mimetype =~ m!^text/!);
4445         git_header_html(undef, $expires);
4446         my $formats_nav = '';
4447         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4448                 if (defined $file_name) {
4449                         if ($have_blame) {
4450                                 $formats_nav .=
4451                                         $cgi->a({-href => href(action=>"blame", -replay=>1)},
4452                                                 "blame") .
4453                                         " | ";
4454                         }
4455                         $formats_nav .=
4456                                 $cgi->a({-href => href(action=>"history", -replay=>1)},
4457                                         "history") .
4458                                 " | " .
4459                                 $cgi->a({-href => href(action=>"blob_plain", -replay=>1)},
4460                                         "raw") .
4461                                 " | " .
4462                                 $cgi->a({-href => href(action=>"blob",
4463                                                        hash_base=>"HEAD", file_name=>$file_name)},
4464                                         "HEAD");
4465                 } else {
4466                         $formats_nav .=
4467                                 $cgi->a({-href => href(action=>"blob_plain", -replay=>1)},
4468                                         "raw");
4469                 }
4470                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4471                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4472         } else {
4473                 print "<div class=\"page_nav\">\n" .
4474                       "<br/><br/></div>\n" .
4475                       "<div class=\"title\">$hash</div>\n";
4476         }
4477         git_print_page_path($file_name, "blob", $hash_base);
4478         print "<div class=\"page_body\">\n";
4479         if ($mimetype =~ m!^image/!) {
4480                 print qq!<img type="$mimetype"!;
4481                 if ($file_name) {
4482                         print qq! alt="$file_name" title="$file_name"!;
4483                 }
4484                 print qq! src="! .
4485                       href(action=>"blob_plain", hash=>$hash,
4486                            hash_base=>$hash_base, file_name=>$file_name) .
4487                       qq!" />\n!;
4488         } else {
4489                 my $nr;
4490                 while (my $line = <$fd>) {
4491                         chomp $line;
4492                         $nr++;
4493                         $line = untabify($line);
4494                         printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
4495                                $nr, $nr, $nr, esc_html($line, -nbsp=>1);
4496                 }
4497         }
4498         close $fd
4499                 or print "Reading blob failed.\n";
4500         print "</div>";
4501         git_footer_html();
4504 sub git_tree {
4505         if (!defined $hash_base) {
4506                 $hash_base = "HEAD";
4507         }
4508         if (!defined $hash) {
4509                 if (defined $file_name) {
4510                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
4511                 } else {
4512                         $hash = $hash_base;
4513                 }
4514         }
4515         $/ = "\0";
4516         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
4517                 or die_error(undef, "Open git-ls-tree failed");
4518         my @entries = map { chomp; $_ } <$fd>;
4519         close $fd or die_error(undef, "Reading tree failed");
4520         $/ = "\n";
4522         my $refs = git_get_references();
4523         my $ref = format_ref_marker($refs, $hash_base);
4524         git_header_html();
4525         my $basedir = '';
4526         my ($have_blame) = gitweb_check_feature('blame');
4527         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4528                 my @views_nav = ();
4529                 if (defined $file_name) {
4530                         push @views_nav,
4531                                 $cgi->a({-href => href(action=>"history", -replay=>1)},
4532                                         "history"),
4533                                 $cgi->a({-href => href(action=>"tree",
4534                                                        hash_base=>"HEAD", file_name=>$file_name)},
4535                                         "HEAD"),
4536                 }
4537                 my $snapshot_links = format_snapshot_links($hash);
4538                 if (defined $snapshot_links) {
4539                         # FIXME: Should be available when we have no hash base as well.
4540                         push @views_nav, $snapshot_links;
4541                 }
4542                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
4543                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
4544         } else {
4545                 undef $hash_base;
4546                 print "<div class=\"page_nav\">\n";
4547                 print "<br/><br/></div>\n";
4548                 print "<div class=\"title\">$hash</div>\n";
4549         }
4550         if (defined $file_name) {
4551                 $basedir = $file_name;
4552                 if ($basedir ne '' && substr($basedir, -1) ne '/') {
4553                         $basedir .= '/';
4554                 }
4555         }
4556         git_print_page_path($file_name, 'tree', $hash_base);
4557         print "<div class=\"page_body\">\n";
4558         print "<table class=\"tree\">\n";
4559         my $alternate = 1;
4560         # '..' (top directory) link if possible
4561         if (defined $hash_base &&
4562             defined $file_name && $file_name =~ m![^/]+$!) {
4563                 if ($alternate) {
4564                         print "<tr class=\"dark\">\n";
4565                 } else {
4566                         print "<tr class=\"light\">\n";
4567                 }
4568                 $alternate ^= 1;
4570                 my $up = $file_name;
4571                 $up =~ s!/?[^/]+$!!;
4572                 undef $up unless $up;
4573                 # based on git_print_tree_entry
4574                 print '<td class="mode">' . mode_str('040000') . "</td>\n";
4575                 print '<td class="list">';
4576                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
4577                                              file_name=>$up)},
4578                               "..");
4579                 print "</td>\n";
4580                 print "<td class=\"link\"></td>\n";
4582                 print "</tr>\n";
4583         }
4584         foreach my $line (@entries) {
4585                 my %t = parse_ls_tree_line($line, -z => 1);
4587                 if ($alternate) {
4588                         print "<tr class=\"dark\">\n";
4589                 } else {
4590                         print "<tr class=\"light\">\n";
4591                 }
4592                 $alternate ^= 1;
4594                 git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
4596                 print "</tr>\n";
4597         }
4598         print "</table>\n" .
4599               "</div>";
4600         git_footer_html();
4603 sub git_snapshot {
4604         my @supported_fmts = gitweb_check_feature('snapshot');
4605         @supported_fmts = filter_snapshot_fmts(@supported_fmts);
4607         my $format = $cgi->param('sf');
4608         if (!@supported_fmts) {
4609                 die_error('403 Permission denied', "Permission denied");
4610         }
4611         # default to first supported snapshot format
4612         $format ||= $supported_fmts[0];
4613         if ($format !~ m/^[a-z0-9]+$/) {
4614                 die_error(undef, "Invalid snapshot format parameter");
4615         } elsif (!exists($known_snapshot_formats{$format})) {
4616                 die_error(undef, "Unknown snapshot format");
4617         } elsif (!grep($_ eq $format, @supported_fmts)) {
4618                 die_error(undef, "Unsupported snapshot format");
4619         }
4621         if (!defined $hash) {
4622                 $hash = git_get_head_hash($project);
4623         }
4625         my $git_command = git_cmd_str();
4626         my $name = $project;
4627         $name =~ s,([^/])/*\.git$,$1,;
4628         $name = basename($name);
4629         my $filename = to_utf8($name);
4630         $name =~ s/\047/\047\\\047\047/g;
4631         my $cmd;
4632         $filename .= "-$hash$known_snapshot_formats{$format}{'suffix'}";
4633         $cmd = "$git_command archive " .
4634                 "--format=$known_snapshot_formats{$format}{'format'} " .
4635                 "--prefix=\'$name\'/ $hash";
4636         if (exists $known_snapshot_formats{$format}{'compressor'}) {
4637                 $cmd .= ' | ' . join ' ', @{$known_snapshot_formats{$format}{'compressor'}};
4638         }
4640         print $cgi->header(
4641                 -type => $known_snapshot_formats{$format}{'type'},
4642                 -content_disposition => 'inline; filename="' . "$filename" . '"',
4643                 -status => '200 OK');
4645         open my $fd, "-|", $cmd
4646                 or die_error(undef, "Execute git-archive failed");
4647         binmode STDOUT, ':raw';
4648         print <$fd>;
4649         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
4650         close $fd;
4653 sub git_log {
4654         my $head = git_get_head_hash($project);
4655         if (!defined $hash) {
4656                 $hash = $head;
4657         }
4658         if (!defined $page) {
4659                 $page = 0;
4660         }
4661         my $refs = git_get_references();
4663         my @commitlist = parse_commits($hash, 101, (100 * $page));
4665         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#commitlist >= 100);
4667         git_header_html();
4668         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
4670         if (!@commitlist) {
4671                 my %co = parse_commit($hash);
4673                 git_print_header_div('summary', $project);
4674                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
4675         }
4676         my $to = ($#commitlist >= 99) ? (99) : ($#commitlist);
4677         for (my $i = 0; $i <= $to; $i++) {
4678                 my %co = %{$commitlist[$i]};
4679                 next if !%co;
4680                 my $commit = $co{'id'};
4681                 my $ref = format_ref_marker($refs, $commit);
4682                 my %ad = parse_date($co{'author_epoch'});
4683                 git_print_header_div('commit',
4684                                "<span class=\"age\">$co{'age_string'}</span>" .
4685                                esc_html($co{'title'}) . $ref,
4686                                $commit);
4687                 print "<div class=\"title_text\">\n" .
4688                       "<div class=\"log_link\">\n" .
4689                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
4690                       " | " .
4691                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
4692                       " | " .
4693                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
4694                       "<br/>\n" .
4695                       "</div>\n" .
4696                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
4697                       "</div>\n";
4699                 print "<div class=\"log_body\">\n";
4700                 git_print_log($co{'comment'}, -final_empty_line=> 1);
4701                 print "</div>\n";
4702         }
4703         if ($#commitlist >= 100) {
4704                 print "<div class=\"page_nav\">\n";
4705                 print $cgi->a({-href => href(-replay=>1, page=>$page+1),
4706                                -accesskey => "n", -title => "Alt-n"}, "next");
4707                 print "</div>\n";
4708         }
4709         git_footer_html();
4712 sub git_commit {
4713         $hash ||= $hash_base || "HEAD";
4714         my %co = parse_commit($hash);
4715         if (!%co) {
4716                 die_error(undef, "Unknown commit object");
4717         }
4718         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4719         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
4721         my $parent  = $co{'parent'};
4722         my $parents = $co{'parents'}; # listref
4724         # we need to prepare $formats_nav before any parameter munging
4725         my $formats_nav;
4726         if (!defined $parent) {
4727                 # --root commitdiff
4728                 $formats_nav .= '(initial)';
4729         } elsif (@$parents == 1) {
4730                 # single parent commit
4731                 $formats_nav .=
4732                         '(parent: ' .
4733                         $cgi->a({-href => href(action=>"commit",
4734                                                hash=>$parent)},
4735                                 esc_html(substr($parent, 0, 7))) .
4736                         ')';
4737         } else {
4738                 # merge commit
4739                 $formats_nav .=
4740                         '(merge: ' .
4741                         join(' ', map {
4742                                 $cgi->a({-href => href(action=>"commit",
4743                                                        hash=>$_)},
4744                                         esc_html(substr($_, 0, 7)));
4745                         } @$parents ) .
4746                         ')';
4747         }
4749         if (!defined $parent) {
4750                 $parent = "--root";
4751         }
4752         my @difftree;
4753         open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
4754                 @diff_opts,
4755                 (@$parents <= 1 ? $parent : '-c'),
4756                 $hash, "--"
4757                 or die_error(undef, "Open git-diff-tree failed");
4758         @difftree = map { chomp; $_ } <$fd>;
4759         close $fd or die_error(undef, "Reading git-diff-tree failed");
4761         # non-textual hash id's can be cached
4762         my $expires;
4763         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4764                 $expires = "+1d";
4765         }
4766         my $refs = git_get_references();
4767         my $ref = format_ref_marker($refs, $co{'id'});
4769         git_header_html(undef, $expires);
4770         git_print_page_nav('commit', '',
4771                            $hash, $co{'tree'}, $hash,
4772                            $formats_nav);
4774         if (defined $co{'parent'}) {
4775                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
4776         } else {
4777                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
4778         }
4779         print "<div class=\"title_text\">\n" .
4780               "<table class=\"object_header\">\n";
4781         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
4782               "<tr>" .
4783               "<td></td><td> $ad{'rfc2822'}";
4784         if ($ad{'hour_local'} < 6) {
4785                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
4786                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4787         } else {
4788                 printf(" (%02d:%02d %s)",
4789                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4790         }
4791         print "</td>" .
4792               "</tr>\n";
4793         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
4794         print "<tr><td></td><td> $cd{'rfc2822'}" .
4795               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
4796               "</td></tr>\n";
4797         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
4798         print "<tr>" .
4799               "<td>tree</td>" .
4800               "<td class=\"sha1\">" .
4801               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
4802                        class => "list"}, $co{'tree'}) .
4803               "</td>" .
4804               "<td class=\"link\">" .
4805               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
4806                       "tree");
4807         my $snapshot_links = format_snapshot_links($hash);
4808         if (defined $snapshot_links) {
4809                 print " | " . $snapshot_links;
4810         }
4811         print "</td>" .
4812               "</tr>\n";
4814         foreach my $par (@$parents) {
4815                 print "<tr>" .
4816                       "<td>parent</td>" .
4817                       "<td class=\"sha1\">" .
4818                       $cgi->a({-href => href(action=>"commit", hash=>$par),
4819                                class => "list"}, $par) .
4820                       "</td>" .
4821                       "<td class=\"link\">" .
4822                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
4823                       " | " .
4824                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
4825                       "</td>" .
4826                       "</tr>\n";
4827         }
4828         print "</table>".
4829               "</div>\n";
4831         print "<div class=\"page_body\">\n";
4832         git_print_log($co{'comment'});
4833         print "</div>\n";
4835         git_difftree_body(\@difftree, $hash, @$parents);
4837         git_footer_html();
4840 sub git_object {
4841         # object is defined by:
4842         # - hash or hash_base alone
4843         # - hash_base and file_name
4844         my $type;
4846         # - hash or hash_base alone
4847         if ($hash || ($hash_base && !defined $file_name)) {
4848                 my $object_id = $hash || $hash_base;
4850                 my $git_command = git_cmd_str();
4851                 open my $fd, "-|", "$git_command cat-file -t $object_id 2>/dev/null"
4852                         or die_error('404 Not Found', "Object does not exist");
4853                 $type = <$fd>;
4854                 chomp $type;
4855                 close $fd
4856                         or die_error('404 Not Found', "Object does not exist");
4858         # - hash_base and file_name
4859         } elsif ($hash_base && defined $file_name) {
4860                 $file_name =~ s,/+$,,;
4862                 system(git_cmd(), "cat-file", '-e', $hash_base) == 0
4863                         or die_error('404 Not Found', "Base object does not exist");
4865                 # here errors should not hapen
4866                 open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
4867                         or die_error(undef, "Open git-ls-tree failed");
4868                 my $line = <$fd>;
4869                 close $fd;
4871                 #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
4872                 unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
4873                         die_error('404 Not Found', "File or directory for given base does not exist");
4874                 }
4875                 $type = $2;
4876                 $hash = $3;
4877         } else {
4878                 die_error('404 Not Found', "Not enough information to find object");
4879         }
4881         print $cgi->redirect(-uri => href(action=>$type, -full=>1,
4882                                           hash=>$hash, hash_base=>$hash_base,
4883                                           file_name=>$file_name),
4884                              -status => '302 Found');
4887 sub git_blobdiff {
4888         my $format = shift || 'html';
4890         my $fd;
4891         my @difftree;
4892         my %diffinfo;
4893         my $expires;
4895         # preparing $fd and %diffinfo for git_patchset_body
4896         # new style URI
4897         if (defined $hash_base && defined $hash_parent_base) {
4898                 if (defined $file_name) {
4899                         # read raw output
4900                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4901                                 $hash_parent_base, $hash_base,
4902                                 "--", (defined $file_parent ? $file_parent : ()), $file_name
4903                                 or die_error(undef, "Open git-diff-tree failed");
4904                         @difftree = map { chomp; $_ } <$fd>;
4905                         close $fd
4906                                 or die_error(undef, "Reading git-diff-tree failed");
4907                         @difftree
4908                                 or die_error('404 Not Found', "Blob diff not found");
4910                 } elsif (defined $hash &&
4911                          $hash =~ /[0-9a-fA-F]{40}/) {
4912                         # try to find filename from $hash
4914                         # read filtered raw output
4915                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4916                                 $hash_parent_base, $hash_base, "--"
4917                                 or die_error(undef, "Open git-diff-tree failed");
4918                         @difftree =
4919                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
4920                                 # $hash == to_id
4921                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
4922                                 map { chomp; $_ } <$fd>;
4923                         close $fd
4924                                 or die_error(undef, "Reading git-diff-tree failed");
4925                         @difftree
4926                                 or die_error('404 Not Found', "Blob diff not found");
4928                 } else {
4929                         die_error('404 Not Found', "Missing one of the blob diff parameters");
4930                 }
4932                 if (@difftree > 1) {
4933                         die_error('404 Not Found', "Ambiguous blob diff specification");
4934                 }
4936                 %diffinfo = parse_difftree_raw_line($difftree[0]);
4937                 $file_parent ||= $diffinfo{'from_file'} || $file_name;
4938                 $file_name   ||= $diffinfo{'to_file'};
4940                 $hash_parent ||= $diffinfo{'from_id'};
4941                 $hash        ||= $diffinfo{'to_id'};
4943                 # non-textual hash id's can be cached
4944                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
4945                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
4946                         $expires = '+1d';
4947                 }
4949                 # open patch output
4950                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4951                         '-p', ($format eq 'html' ? "--full-index" : ()),
4952                         $hash_parent_base, $hash_base,
4953                         "--", (defined $file_parent ? $file_parent : ()), $file_name
4954                         or die_error(undef, "Open git-diff-tree failed");
4955         }
4957         # old/legacy style URI
4958         if (!%diffinfo && # if new style URI failed
4959             defined $hash && defined $hash_parent) {
4960                 # fake git-diff-tree raw output
4961                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
4962                 $diffinfo{'from_id'} = $hash_parent;
4963                 $diffinfo{'to_id'}   = $hash;
4964                 if (defined $file_name) {
4965                         if (defined $file_parent) {
4966                                 $diffinfo{'status'} = '2';
4967                                 $diffinfo{'from_file'} = $file_parent;
4968                                 $diffinfo{'to_file'}   = $file_name;
4969                         } else { # assume not renamed
4970                                 $diffinfo{'status'} = '1';
4971                                 $diffinfo{'from_file'} = $file_name;
4972                                 $diffinfo{'to_file'}   = $file_name;
4973                         }
4974                 } else { # no filename given
4975                         $diffinfo{'status'} = '2';
4976                         $diffinfo{'from_file'} = $hash_parent;
4977                         $diffinfo{'to_file'}   = $hash;
4978                 }
4980                 # non-textual hash id's can be cached
4981                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
4982                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4983                         $expires = '+1d';
4984                 }
4986                 # open patch output
4987                 open $fd, "-|", git_cmd(), "diff", @diff_opts,
4988                         '-p', ($format eq 'html' ? "--full-index" : ()),
4989                         $hash_parent, $hash, "--"
4990                         or die_error(undef, "Open git-diff failed");
4991         } else  {
4992                 die_error('404 Not Found', "Missing one of the blob diff parameters")
4993                         unless %diffinfo;
4994         }
4996         # header
4997         if ($format eq 'html') {
4998                 my $formats_nav =
4999                         $cgi->a({-href => href(action=>"blobdiff_plain", -replay=>1)},
5000                                 "raw");
5001                 git_header_html(undef, $expires);
5002                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
5003                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
5004                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
5005                 } else {
5006                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
5007                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
5008                 }
5009                 if (defined $file_name) {
5010                         git_print_page_path($file_name, "blob", $hash_base);
5011                 } else {
5012                         print "<div class=\"page_path\"></div>\n";
5013                 }
5015         } elsif ($format eq 'plain') {
5016                 print $cgi->header(
5017                         -type => 'text/plain',
5018                         -charset => 'utf-8',
5019                         -expires => $expires,
5020                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
5022                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
5024         } else {
5025                 die_error(undef, "Unknown blobdiff format");
5026         }
5028         # patch
5029         if ($format eq 'html') {
5030                 print "<div class=\"page_body\">\n";
5032                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
5033                 close $fd;
5035                 print "</div>\n"; # class="page_body"
5036                 git_footer_html();
5038         } else {
5039                 while (my $line = <$fd>) {
5040                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
5041                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
5043                         print $line;
5045                         last if $line =~ m!^\+\+\+!;
5046                 }
5047                 local $/ = undef;
5048                 print <$fd>;
5049                 close $fd;
5050         }
5053 sub git_blobdiff_plain {
5054         git_blobdiff('plain');
5057 sub git_commitdiff {
5058         my $format = shift || 'html';
5059         $hash ||= $hash_base || "HEAD";
5060         my %co = parse_commit($hash);
5061         if (!%co) {
5062                 die_error(undef, "Unknown commit object");
5063         }
5065         # choose format for commitdiff for merge
5066         if (! defined $hash_parent && @{$co{'parents'}} > 1) {
5067                 $hash_parent = '--cc';
5068         }
5069         # we need to prepare $formats_nav before almost any parameter munging
5070         my $formats_nav;
5071         if ($format eq 'html') {
5072                 $formats_nav =
5073                         $cgi->a({-href => href(action=>"commitdiff_plain", -replay=>1)},
5074                                 "raw");
5076                 if (defined $hash_parent &&
5077                     $hash_parent ne '-c' && $hash_parent ne '--cc') {
5078                         # commitdiff with two commits given
5079                         my $hash_parent_short = $hash_parent;
5080                         if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
5081                                 $hash_parent_short = substr($hash_parent, 0, 7);
5082                         }
5083                         $formats_nav .=
5084                                 ' (from';
5085                         for (my $i = 0; $i < @{$co{'parents'}}; $i++) {
5086                                 if ($co{'parents'}[$i] eq $hash_parent) {
5087                                         $formats_nav .= ' parent ' . ($i+1);
5088                                         last;
5089                                 }
5090                         }
5091                         $formats_nav .= ': ' .
5092                                 $cgi->a({-href => href(action=>"commitdiff",
5093                                                        hash=>$hash_parent)},
5094                                         esc_html($hash_parent_short)) .
5095                                 ')';
5096                 } elsif (!$co{'parent'}) {
5097                         # --root commitdiff
5098                         $formats_nav .= ' (initial)';
5099                 } elsif (scalar @{$co{'parents'}} == 1) {
5100                         # single parent commit
5101                         $formats_nav .=
5102                                 ' (parent: ' .
5103                                 $cgi->a({-href => href(action=>"commitdiff",
5104                                                        hash=>$co{'parent'})},
5105                                         esc_html(substr($co{'parent'}, 0, 7))) .
5106                                 ')';
5107                 } else {
5108                         # merge commit
5109                         if ($hash_parent eq '--cc') {
5110                                 $formats_nav .= ' | ' .
5111                                         $cgi->a({-href => href(action=>"commitdiff",
5112                                                                hash=>$hash, hash_parent=>'-c')},
5113                                                 'combined');
5114                         } else { # $hash_parent eq '-c'
5115                                 $formats_nav .= ' | ' .
5116                                         $cgi->a({-href => href(action=>"commitdiff",
5117                                                                hash=>$hash, hash_parent=>'--cc')},
5118                                                 'compact');
5119                         }
5120                         $formats_nav .=
5121                                 ' (merge: ' .
5122                                 join(' ', map {
5123                                         $cgi->a({-href => href(action=>"commitdiff",
5124                                                                hash=>$_)},
5125                                                 esc_html(substr($_, 0, 7)));
5126                                 } @{$co{'parents'}} ) .
5127                                 ')';
5128                 }
5129         }
5131         my $hash_parent_param = $hash_parent;
5132         if (!defined $hash_parent_param) {
5133                 # --cc for multiple parents, --root for parentless
5134                 $hash_parent_param =
5135                         @{$co{'parents'}} > 1 ? '--cc' : $co{'parent'} || '--root';
5136         }
5138         # read commitdiff
5139         my $fd;
5140         my @difftree;
5141         if ($format eq 'html') {
5142                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
5143                         "--no-commit-id", "--patch-with-raw", "--full-index",
5144                         $hash_parent_param, $hash, "--"
5145                         or die_error(undef, "Open git-diff-tree failed");
5147                 while (my $line = <$fd>) {
5148                         chomp $line;
5149                         # empty line ends raw part of diff-tree output
5150                         last unless $line;
5151                         push @difftree, scalar parse_difftree_raw_line($line);
5152                 }
5154         } elsif ($format eq 'plain') {
5155                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
5156                         '-p', $hash_parent_param, $hash, "--"
5157                         or die_error(undef, "Open git-diff-tree failed");
5159         } else {
5160                 die_error(undef, "Unknown commitdiff format");
5161         }
5163         # non-textual hash id's can be cached
5164         my $expires;
5165         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
5166                 $expires = "+1d";
5167         }
5169         # write commit message
5170         if ($format eq 'html') {
5171                 my $refs = git_get_references();
5172                 my $ref = format_ref_marker($refs, $co{'id'});
5174                 git_header_html(undef, $expires);
5175                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
5176                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
5177                 git_print_authorship(\%co);
5178                 print "<div class=\"page_body\">\n";
5179                 if (@{$co{'comment'}} > 1) {
5180                         print "<div class=\"log\">\n";
5181                         git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
5182                         print "</div>\n"; # class="log"
5183                 }
5185         } elsif ($format eq 'plain') {
5186                 my $refs = git_get_references("tags");
5187                 my $tagname = git_get_rev_name_tags($hash);
5188                 my $filename = basename($project) . "-$hash.patch";
5190                 print $cgi->header(
5191                         -type => 'text/plain',
5192                         -charset => 'utf-8',
5193                         -expires => $expires,
5194                         -content_disposition => 'inline; filename="' . "$filename" . '"');
5195                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
5196                 print "From: " . to_utf8($co{'author'}) . "\n";
5197                 print "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n";
5198                 print "Subject: " . to_utf8($co{'title'}) . "\n";
5200                 print "X-Git-Tag: $tagname\n" if $tagname;
5201                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
5203                 foreach my $line (@{$co{'comment'}}) {
5204                         print to_utf8($line) . "\n";
5205                 }
5206                 print "---\n\n";
5207         }
5209         # write patch
5210         if ($format eq 'html') {
5211                 my $use_parents = !defined $hash_parent ||
5212                         $hash_parent eq '-c' || $hash_parent eq '--cc';
5213                 git_difftree_body(\@difftree, $hash,
5214                                   $use_parents ? @{$co{'parents'}} : $hash_parent);
5215                 print "<br/>\n";
5217                 git_patchset_body($fd, \@difftree, $hash,
5218                                   $use_parents ? @{$co{'parents'}} : $hash_parent);
5219                 close $fd;
5220                 print "</div>\n"; # class="page_body"
5221                 git_footer_html();
5223         } elsif ($format eq 'plain') {
5224                 local $/ = undef;
5225                 print <$fd>;
5226                 close $fd
5227                         or print "Reading git-diff-tree failed\n";
5228         }
5231 sub git_commitdiff_plain {
5232         git_commitdiff('plain');
5235 sub git_history {
5236         if (!defined $hash_base) {
5237                 $hash_base = git_get_head_hash($project);
5238         }
5239         if (!defined $page) {
5240                 $page = 0;
5241         }
5242         my $ftype;
5243         my %co = parse_commit($hash_base);
5244         if (!%co) {
5245                 die_error(undef, "Unknown commit object");
5246         }
5248         my $refs = git_get_references();
5249         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
5251         my @commitlist = parse_commits($hash_base, 101, (100 * $page),
5252                                        $file_name, "--full-history");
5253         if (!@commitlist) {
5254                 die_error('404 Not Found', "No such file or directory on given branch");
5255         }
5257         if (!defined $hash && defined $file_name) {
5258                 # some commits could have deleted file in question,
5259                 # and not have it in tree, but one of them has to have it
5260                 for (my $i = 0; $i <= @commitlist; $i++) {
5261                         $hash = git_get_hash_by_path($commitlist[$i]{'id'}, $file_name);
5262                         last if defined $hash;
5263                 }
5264         }
5265         if (defined $hash) {
5266                 $ftype = git_get_type($hash);
5267         }
5268         if (!defined $ftype) {
5269                 die_error(undef, "Unknown type of object");
5270         }
5272         my $paging_nav = '';
5273         if ($page > 0) {
5274                 $paging_nav .=
5275                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
5276                                                file_name=>$file_name)},
5277                                 "first");
5278                 $paging_nav .= " &sdot; " .
5279                         $cgi->a({-href => href(-replay=>1, page=>$page-1),
5280                                  -accesskey => "p", -title => "Alt-p"}, "prev");
5281         } else {
5282                 $paging_nav .= "first";
5283                 $paging_nav .= " &sdot; prev";
5284         }
5285         my $next_link = '';
5286         if ($#commitlist >= 100) {
5287                 $next_link =
5288                         $cgi->a({-href => href(-replay=>1, page=>$page+1),
5289                                  -accesskey => "n", -title => "Alt-n"}, "next");
5290                 $paging_nav .= " &sdot; $next_link";
5291         } else {
5292                 $paging_nav .= " &sdot; next";
5293         }
5295         git_header_html();
5296         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
5297         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
5298         git_print_page_path($file_name, $ftype, $hash_base);
5300         git_history_body(\@commitlist, 0, 99,
5301                          $refs, $hash_base, $ftype, $next_link);
5303         git_footer_html();
5306 sub git_search {
5307         my ($have_search) = gitweb_check_feature('search');
5308         if (!$have_search) {
5309                 die_error('403 Permission denied', "Permission denied");
5310         }
5311         if (!defined $searchtext) {
5312                 die_error(undef, "Text field empty");
5313         }
5314         if (!defined $hash) {
5315                 $hash = git_get_head_hash($project);
5316         }
5317         my %co = parse_commit($hash);
5318         if (!%co) {
5319                 die_error(undef, "Unknown commit object");
5320         }
5321         if (!defined $page) {
5322                 $page = 0;
5323         }
5325         $searchtype ||= 'commit';
5326         if ($searchtype eq 'pickaxe') {
5327                 # pickaxe may take all resources of your box and run for several minutes
5328                 # with every query - so decide by yourself how public you make this feature
5329                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
5330                 if (!$have_pickaxe) {
5331                         die_error('403 Permission denied', "Permission denied");
5332                 }
5333         }
5334         if ($searchtype eq 'grep') {
5335                 my ($have_grep) = gitweb_check_feature('grep');
5336                 if (!$have_grep) {
5337                         die_error('403 Permission denied', "Permission denied");
5338                 }
5339         }
5341         git_header_html();
5343         if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
5344                 my $greptype;
5345                 if ($searchtype eq 'commit') {
5346                         $greptype = "--grep=";
5347                 } elsif ($searchtype eq 'author') {
5348                         $greptype = "--author=";
5349                 } elsif ($searchtype eq 'committer') {
5350                         $greptype = "--committer=";
5351                 }
5352                 $greptype .= $searchtext;
5353                 my @commitlist = parse_commits($hash, 101, (100 * $page), undef,
5354                                                $greptype, '--regexp-ignore-case',
5355                                                $search_use_regexp ? '--extended-regexp' : '--fixed-strings');
5357                 my $paging_nav = '';
5358                 if ($page > 0) {
5359                         $paging_nav .=
5360                                 $cgi->a({-href => href(action=>"search", hash=>$hash,
5361                                                        searchtext=>$searchtext,
5362                                                        searchtype=>$searchtype)},
5363                                         "first");
5364                         $paging_nav .= " &sdot; " .
5365                                 $cgi->a({-href => href(-replay=>1, page=>$page-1),
5366                                          -accesskey => "p", -title => "Alt-p"}, "prev");
5367                 } else {
5368                         $paging_nav .= "first";
5369                         $paging_nav .= " &sdot; prev";
5370                 }
5371                 my $next_link = '';
5372                 if ($#commitlist >= 100) {
5373                         $next_link =
5374                                 $cgi->a({-href => href(-replay=>1, page=>$page+1),
5375                                          -accesskey => "n", -title => "Alt-n"}, "next");
5376                         $paging_nav .= " &sdot; $next_link";
5377                 } else {
5378                         $paging_nav .= " &sdot; next";
5379                 }
5381                 if ($#commitlist >= 100) {
5382                 }
5384                 git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
5385                 git_print_header_div('commit', esc_html($co{'title'}), $hash);
5386                 git_search_grep_body(\@commitlist, 0, 99, $next_link);
5387         }
5389         if ($searchtype eq 'pickaxe') {
5390                 git_print_page_nav('','', $hash,$co{'tree'},$hash);
5391                 git_print_header_div('commit', esc_html($co{'title'}), $hash);
5393                 print "<table class=\"pickaxe search\">\n";
5394                 my $alternate = 1;
5395                 $/ = "\n";
5396                 open my $fd, '-|', git_cmd(), '--no-pager', 'log', @diff_opts,
5397                         '--pretty=format:%H', '--no-abbrev', '--raw', "-S$searchtext",
5398                         ($search_use_regexp ? '--pickaxe-regex' : ());
5399                 undef %co;
5400                 my @files;
5401                 while (my $line = <$fd>) {
5402                         chomp $line;
5403                         next unless $line;
5405                         my %set = parse_difftree_raw_line($line);
5406                         if (defined $set{'commit'}) {
5407                                 # finish previous commit
5408                                 if (%co) {
5409                                         print "</td>\n" .
5410                                               "<td class=\"link\">" .
5411                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
5412                                               " | " .
5413                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
5414                                         print "</td>\n" .
5415                                               "</tr>\n";
5416                                 }
5418                                 if ($alternate) {
5419                                         print "<tr class=\"dark\">\n";
5420                                 } else {
5421                                         print "<tr class=\"light\">\n";
5422                                 }
5423                                 $alternate ^= 1;
5424                                 %co = parse_commit($set{'commit'});
5425                                 my $author = chop_and_escape_str($co{'author_name'}, 15, 5);
5426                                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
5427                                       "<td><i>$author</i></td>\n" .
5428                                       "<td>" .
5429                                       $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
5430                                               -class => "list subject"},
5431                                               chop_and_escape_str($co{'title'}, 50) . "<br/>");
5432                         } elsif (defined $set{'to_id'}) {
5433                                 next if ($set{'to_id'} =~ m/^0{40}$/);
5435                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
5436                                                              hash=>$set{'to_id'}, file_name=>$set{'to_file'}),
5437                                               -class => "list"},
5438                                               "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
5439                                       "<br/>\n";
5440                         }
5441                 }
5442                 close $fd;
5444                 # finish last commit (warning: repetition!)
5445                 if (%co) {
5446                         print "</td>\n" .
5447                               "<td class=\"link\">" .
5448                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
5449                               " | " .
5450                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
5451                         print "</td>\n" .
5452                               "</tr>\n";
5453                 }
5455                 print "</table>\n";
5456         }
5458         if ($searchtype eq 'grep') {
5459                 git_print_page_nav('','', $hash,$co{'tree'},$hash);
5460                 git_print_header_div('commit', esc_html($co{'title'}), $hash);
5462                 print "<table class=\"grep_search\">\n";
5463                 my $alternate = 1;
5464                 my $matches = 0;
5465                 $/ = "\n";
5466                 open my $fd, "-|", git_cmd(), 'grep', '-n',
5467                         $search_use_regexp ? ('-E', '-i') : '-F',
5468                         $searchtext, $co{'tree'};
5469                 my $lastfile = '';
5470                 while (my $line = <$fd>) {
5471                         chomp $line;
5472                         my ($file, $lno, $ltext, $binary);
5473                         last if ($matches++ > 1000);
5474                         if ($line =~ /^Binary file (.+) matches$/) {
5475                                 $file = $1;
5476                                 $binary = 1;
5477                         } else {
5478                                 (undef, $file, $lno, $ltext) = split(/:/, $line, 4);
5479                         }
5480                         if ($file ne $lastfile) {
5481                                 $lastfile and print "</td></tr>\n";
5482                                 if ($alternate++) {
5483                                         print "<tr class=\"dark\">\n";
5484                                 } else {
5485                                         print "<tr class=\"light\">\n";
5486                                 }
5487                                 print "<td class=\"list\">".
5488                                         $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
5489                                                                file_name=>"$file"),
5490                                                 -class => "list"}, esc_path($file));
5491                                 print "</td><td>\n";
5492                                 $lastfile = $file;
5493                         }
5494                         if ($binary) {
5495                                 print "<div class=\"binary\">Binary file</div>\n";
5496                         } else {
5497                                 $ltext = untabify($ltext);
5498                                 if ($ltext =~ m/^(.*)($search_regexp)(.*)$/i) {
5499                                         $ltext = esc_html($1, -nbsp=>1);
5500                                         $ltext .= '<span class="match">';
5501                                         $ltext .= esc_html($2, -nbsp=>1);
5502                                         $ltext .= '</span>';
5503                                         $ltext .= esc_html($3, -nbsp=>1);
5504                                 } else {
5505                                         $ltext = esc_html($ltext, -nbsp=>1);
5506                                 }
5507                                 print "<div class=\"pre\">" .
5508                                         $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'},
5509                                                                file_name=>"$file").'#l'.$lno,
5510                                                 -class => "linenr"}, sprintf('%4i', $lno))
5511                                         . ' ' .  $ltext . "</div>\n";
5512                         }
5513                 }
5514                 if ($lastfile) {
5515                         print "</td></tr>\n";
5516                         if ($matches > 1000) {
5517                                 print "<div class=\"diff nodifferences\">Too many matches, listing trimmed</div>\n";
5518                         }
5519                 } else {
5520                         print "<div class=\"diff nodifferences\">No matches found</div>\n";
5521                 }
5522                 close $fd;
5524                 print "</table>\n";
5525         }
5526         git_footer_html();
5529 sub git_search_help {
5530         git_header_html();
5531         git_print_page_nav('','', $hash,$hash,$hash);
5532         print <<EOT;
5533 <p><strong>Pattern</strong> is by default a normal string that is matched precisely (but without
5534 regard to case, except in the case of pickaxe). However, when you check the <em>re</em> checkbox,
5535 the pattern entered is recognized as the POSIX extended
5536 <a href="http://en.wikipedia.org/wiki/Regular_expression">regular expression</a> (also case
5537 insensitive).</p>
5538 <dl>
5539 <dt><b>commit</b></dt>
5540 <dd>The commit messages and authorship information will be scanned for the given pattern.</dd>
5541 EOT
5542         my ($have_grep) = gitweb_check_feature('grep');
5543         if ($have_grep) {
5544                 print <<EOT;
5545 <dt><b>grep</b></dt>
5546 <dd>All files in the currently selected tree (HEAD unless you are explicitly browsing
5547     a different one) are searched for the given pattern. On large trees, this search can take
5548 a while and put some strain on the server, so please use it with some consideration. Note that
5549 due to git-grep peculiarity, currently if regexp mode is turned off, the matches are
5550 case-sensitive.</dd>
5551 EOT
5552         }
5553         print <<EOT;
5554 <dt><b>author</b></dt>
5555 <dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given pattern.</dd>
5556 <dt><b>committer</b></dt>
5557 <dd>Name and e-mail of the committer and date of commit will be scanned for the given pattern.</dd>
5558 EOT
5559         my ($have_pickaxe) = gitweb_check_feature('pickaxe');
5560         if ($have_pickaxe) {
5561                 print <<EOT;
5562 <dt><b>pickaxe</b></dt>
5563 <dd>All commits that caused the string to appear or disappear from any file (changes that
5564 added, removed or "modified" the string) will be listed. This search can take a while and
5565 takes a lot of strain on the server, so please use it wisely. Note that since you may be
5566 interested even in changes just changing the case as well, this search is case sensitive.</dd>
5567 EOT
5568         }
5569         print "</dl>\n";
5570         git_footer_html();
5573 sub git_shortlog {
5574         my $head = git_get_head_hash($project);
5575         if (!defined $hash) {
5576                 $hash = $head;
5577         }
5578         if (!defined $page) {
5579                 $page = 0;
5580         }
5581         my $refs = git_get_references();
5583         my @commitlist = parse_commits($hash, 101, (100 * $page));
5585         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#commitlist >= 100);
5586         my $next_link = '';
5587         if ($#commitlist >= 100) {
5588                 $next_link =
5589                         $cgi->a({-href => href(-replay=>1, page=>$page+1),
5590                                  -accesskey => "n", -title => "Alt-n"}, "next");
5591         }
5593         git_header_html();
5594         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
5595         git_print_header_div('summary', $project);
5597         git_shortlog_body(\@commitlist, 0, 99, $refs, $next_link);
5599         git_footer_html();
5602 ## ......................................................................
5603 ## feeds (RSS, Atom; OPML)
5605 sub git_feed {
5606         my $format = shift || 'atom';
5607         my ($have_blame) = gitweb_check_feature('blame');
5609         # Atom: http://www.atomenabled.org/developers/syndication/
5610         # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
5611         if ($format ne 'rss' && $format ne 'atom') {
5612                 die_error(undef, "Unknown web feed format");
5613         }
5615         # log/feed of current (HEAD) branch, log of given branch, history of file/directory
5616         my $head = $hash || 'HEAD';
5617         my @commitlist = parse_commits($head, 150, 0, $file_name);
5619         my %latest_commit;
5620         my %latest_date;
5621         my $content_type = "application/$format+xml";
5622         if (defined $cgi->http('HTTP_ACCEPT') &&
5623                  $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
5624                 # browser (feed reader) prefers text/xml
5625                 $content_type = 'text/xml';
5626         }
5627         if (defined($commitlist[0])) {
5628                 %latest_commit = %{$commitlist[0]};
5629                 %latest_date   = parse_date($latest_commit{'author_epoch'});
5630                 print $cgi->header(
5631                         -type => $content_type,
5632                         -charset => 'utf-8',
5633                         -last_modified => $latest_date{'rfc2822'});
5634         } else {
5635                 print $cgi->header(
5636                         -type => $content_type,
5637                         -charset => 'utf-8');
5638         }
5640         # Optimization: skip generating the body if client asks only
5641         # for Last-Modified date.
5642         return if ($cgi->request_method() eq 'HEAD');
5644         # header variables
5645         my $title = "$site_name - $project/$action";
5646         my $feed_type = 'log';
5647         if (defined $hash) {
5648                 $title .= " - '$hash'";
5649                 $feed_type = 'branch log';
5650                 if (defined $file_name) {
5651                         $title .= " :: $file_name";
5652                         $feed_type = 'history';
5653                 }
5654         } elsif (defined $file_name) {
5655                 $title .= " - $file_name";
5656                 $feed_type = 'history';
5657         }
5658         $title .= " $feed_type";
5659         my $descr = git_get_project_description($project);
5660         if (defined $descr) {
5661                 $descr = esc_html($descr);
5662         } else {
5663                 $descr = "$project " .
5664                          ($format eq 'rss' ? 'RSS' : 'Atom') .
5665                          " feed";
5666         }
5667         my $owner = git_get_project_owner($project);
5668         $owner = esc_html($owner);
5670         #header
5671         my $alt_url;
5672         if (defined $file_name) {
5673                 $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
5674         } elsif (defined $hash) {
5675                 $alt_url = href(-full=>1, action=>"log", hash=>$hash);
5676         } else {
5677                 $alt_url = href(-full=>1, action=>"summary");
5678         }
5679         print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
5680         if ($format eq 'rss') {
5681                 print <<XML;
5682 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
5683 <channel>
5684 XML
5685                 print "<title>$title</title>\n" .
5686                       "<link>$alt_url</link>\n" .
5687                       "<description>$descr</description>\n" .
5688                       "<language>en</language>\n";
5689         } elsif ($format eq 'atom') {
5690                 print <<XML;
5691 <feed xmlns="http://www.w3.org/2005/Atom">
5692 XML
5693                 print "<title>$title</title>\n" .
5694                       "<subtitle>$descr</subtitle>\n" .
5695                       '<link rel="alternate" type="text/html" href="' .
5696                       $alt_url . '" />' . "\n" .
5697                       '<link rel="self" type="' . $content_type . '" href="' .
5698                       $cgi->self_url() . '" />' . "\n" .
5699                       "<id>" . href(-full=>1) . "</id>\n" .
5700                       # use project owner for feed author
5701                       "<author><name>$owner</name></author>\n";
5702                 if (defined $favicon) {
5703                         print "<icon>" . esc_url($favicon) . "</icon>\n";
5704                 }
5705                 if (defined $logo_url) {
5706                         # not twice as wide as tall: 72 x 27 pixels
5707                         print "<logo>" . esc_url($logo) . "</logo>\n";
5708                 }
5709                 if (! %latest_date) {
5710                         # dummy date to keep the feed valid until commits trickle in:
5711                         print "<updated>1970-01-01T00:00:00Z</updated>\n";
5712                 } else {
5713                         print "<updated>$latest_date{'iso-8601'}</updated>\n";
5714                 }
5715         }
5717         # contents
5718         for (my $i = 0; $i <= $#commitlist; $i++) {
5719                 my %co = %{$commitlist[$i]};
5720                 my $commit = $co{'id'};
5721                 # we read 150, we always show 30 and the ones more recent than 48 hours
5722                 if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
5723                         last;
5724                 }
5725                 my %cd = parse_date($co{'author_epoch'});
5727                 # get list of changed files
5728                 open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
5729                         $co{'parent'} || "--root",
5730                         $co{'id'}, "--", (defined $file_name ? $file_name : ())
5731                         or next;
5732                 my @difftree = map { chomp; $_ } <$fd>;
5733                 close $fd
5734                         or next;
5736                 # print element (entry, item)
5737                 my $co_url = href(-full=>1, action=>"commitdiff", hash=>$commit);
5738                 if ($format eq 'rss') {
5739                         print "<item>\n" .
5740                               "<title>" . esc_html($co{'title'}) . "</title>\n" .
5741                               "<author>" . esc_html($co{'author'}) . "</author>\n" .
5742                               "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
5743                               "<guid isPermaLink=\"true\">$co_url</guid>\n" .
5744                               "<link>$co_url</link>\n" .
5745                               "<description>" . esc_html($co{'title'}) . "</description>\n" .
5746                               "<content:encoded>" .
5747                               "<![CDATA[\n";
5748                 } elsif ($format eq 'atom') {
5749                         print "<entry>\n" .
5750                               "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
5751                               "<updated>$cd{'iso-8601'}</updated>\n" .
5752                               "<author>\n" .
5753                               "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
5754                         if ($co{'author_email'}) {
5755                                 print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
5756                         }
5757                         print "</author>\n" .
5758                               # use committer for contributor
5759                               "<contributor>\n" .
5760                               "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
5761                         if ($co{'committer_email'}) {
5762                                 print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
5763                         }
5764                         print "</contributor>\n" .
5765                               "<published>$cd{'iso-8601'}</published>\n" .
5766                               "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
5767                               "<id>$co_url</id>\n" .
5768                               "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
5769                               "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
5770                 }
5771                 my $comment = $co{'comment'};
5772                 print "<pre>\n";
5773                 foreach my $line (@$comment) {
5774                         $line = esc_html($line);
5775                         print "$line\n";
5776                 }
5777                 print "</pre><ul>\n";
5778                 foreach my $difftree_line (@difftree) {
5779                         my %difftree = parse_difftree_raw_line($difftree_line);
5780                         next if !$difftree{'from_id'};
5782                         my $file = $difftree{'file'} || $difftree{'to_file'};
5784                         print "<li>" .
5785                               "[" .
5786                               $cgi->a({-href => href(-full=>1, action=>"blobdiff",
5787                                                      hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
5788                                                      hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
5789                                                      file_name=>$file, file_parent=>$difftree{'from_file'}),
5790                                       -title => "diff"}, 'D');
5791                         if ($have_blame) {
5792                                 print $cgi->a({-href => href(-full=>1, action=>"blame",
5793                                                              file_name=>$file, hash_base=>$commit),
5794                                               -title => "blame"}, 'B');
5795                         }
5796                         # if this is not a feed of a file history
5797                         if (!defined $file_name || $file_name ne $file) {
5798                                 print $cgi->a({-href => href(-full=>1, action=>"history",
5799                                                              file_name=>$file, hash=>$commit),
5800                                               -title => "history"}, 'H');
5801                         }
5802                         $file = esc_path($file);
5803                         print "] ".
5804                               "$file</li>\n";
5805                 }
5806                 if ($format eq 'rss') {
5807                         print "</ul>]]>\n" .
5808                               "</content:encoded>\n" .
5809                               "</item>\n";
5810                 } elsif ($format eq 'atom') {
5811                         print "</ul>\n</div>\n" .
5812                               "</content>\n" .
5813                               "</entry>\n";
5814                 }
5815         }
5817         # end of feed
5818         if ($format eq 'rss') {
5819                 print "</channel>\n</rss>\n";
5820         }       elsif ($format eq 'atom') {
5821                 print "</feed>\n";
5822         }
5825 sub git_rss {
5826         git_feed('rss');
5829 sub git_atom {
5830         git_feed('atom');
5833 sub git_opml {
5834         my @list = git_get_projects_list();
5836         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
5837         print <<XML;
5838 <?xml version="1.0" encoding="utf-8"?>
5839 <opml version="1.0">
5840 <head>
5841   <title>$site_name OPML Export</title>
5842 </head>
5843 <body>
5844 <outline text="git RSS feeds">
5845 XML
5847         foreach my $pr (@list) {
5848                 my %proj = %$pr;
5849                 my $head = git_get_head_hash($proj{'path'});
5850                 if (!defined $head) {
5851                         next;
5852                 }
5853                 $git_dir = "$projectroot/$proj{'path'}";
5854                 my %co = parse_commit($head);
5855                 if (!%co) {
5856                         next;
5857                 }
5859                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
5860                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
5861                 my $html = "$my_url?p=$proj{'path'};a=summary";
5862                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
5863         }
5864         print <<XML;
5865 </outline>
5866 </body>
5867 </opml>
5868 XML