gitweb/gitweb.perl

   1 #!/usr/bin/perl
   2
   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
   9
  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';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40 # name of your site or organization to appear in page titles
  41 # replace this with something more descriptive for clearer bookmarks
  42 our $site_name = "++GITWEB_SITENAME++"
  43                  || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  44
  45 # filename of html text to include at top of each page
  46 our $site_header = "++GITWEB_SITE_HEADER++";
  47 # html text to include at home page
  48 our $home_text = "++GITWEB_HOMETEXT++";
  49 # filename of html text to include at bottom of each page
  50 our $site_footer = "++GITWEB_SITE_FOOTER++";
  51
  52 # URI of stylesheets
  53 our @stylesheets = ("++GITWEB_CSS++");
  54 our $stylesheet;
  55 # default is not to define style sheet, but it can be overwritten later
  56 undef $stylesheet;
  57
  58 # URI of default stylesheet
  59 our $stylesheet = "++GITWEB_CSS++";
  60 # URI of GIT logo (72x27 size)
  61 our $logo = "++GITWEB_LOGO++";
  62 # URI of GIT favicon, assumed to be image/png type
  63 our $favicon = "++GITWEB_FAVICON++";
  64
  65 # URI and label (title) of GIT logo link
  66 #our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  67 #our $logo_label = "git documentation";
  68 our $logo_url = "http://git.or.cz/";
  69 our $logo_label = "git homepage";
  70
  71 # source of projects list
  72 our $projects_list = "++GITWEB_LIST++";
  73
  74 # show repository only if this file exists
  75 # (only effective if this variable evaluates to true)
  76 our $export_ok = "++GITWEB_EXPORT_OK++";
  77
  78 # only allow viewing of repositories also shown on the overview page
  79 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  80
  81 # list of git base URLs used for URL to where fetch project from,
  82 # i.e. full URL is "$git_base_url/$project"
  83 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  84
  85 # default blob_plain mimetype and default charset for text/plain blob
  86 our $default_blob_plain_mimetype = 'text/plain';
  87 our $default_text_plain_charset  = undef;
  88
  89 # file to use for guessing MIME types before trying /etc/mime.types
  90 # (relative to the current git repository)
  91 our $mimetypes_file = undef;
  92
  93 # You define site-wide feature defaults here; override them with
  94 # $GITWEB_CONFIG as necessary.
  95 our %feature = (
  96         # feature => {
  97         #       'sub' => feature-sub (subroutine),
  98         #       'override' => allow-override (boolean),
  99         #       'default' => [ default options...] (array reference)}
 100         #
 101         # if feature is overridable (it means that allow-override has true value,
 102         # then feature-sub will be called with default options as parameters;
 103         # return value of feature-sub indicates if to enable specified feature
 104         #
 105         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 106
 107         # Enable the 'blame' blob view, showing the last commit that modified
 108         # each line in the file. This can be very CPU-intensive.
 109
 110         # To enable system wide have in $GITWEB_CONFIG
 111         # $feature{'blame'}{'default'} = [1];
 112         # To have project specific config enable override in $GITWEB_CONFIG
 113         # $feature{'blame'}{'override'} = 1;
 114         # and in project config gitweb.blame = 0|1;
 115         'blame' => {
 116                 'sub' => \&feature_blame,
 117                 'override' => 0,
 118                 'default' => [0]},
 119
 120         # Enable the 'snapshot' link, providing a compressed tarball of any
 121         # tree. This can potentially generate high traffic if you have large
 122         # project.
 123
 124         # To disable system wide have in $GITWEB_CONFIG
 125         # $feature{'snapshot'}{'default'} = [undef];
 126         # To have project specific config enable override in $GITWEB_CONFIG
 127         # $feature{'blame'}{'override'} = 1;
 128         # and in project config gitweb.snapshot = none|gzip|bzip2;
 129         'snapshot' => {
 130                 'sub' => \&feature_snapshot,
 131                 'override' => 0,
 132                 #         => [content-encoding, suffix, program]
 133                 'default' => ['x-gzip', 'gz', 'gzip']},
 134
 135         # Enable the pickaxe search, which will list the commits that modified
 136         # a given string in a file. This can be practical and quite faster
 137         # alternative to 'blame', but still potentially CPU-intensive.
 138
 139         # To enable system wide have in $GITWEB_CONFIG
 140         # $feature{'pickaxe'}{'default'} = [1];
 141         # To have project specific config enable override in $GITWEB_CONFIG
 142         # $feature{'pickaxe'}{'override'} = 1;
 143         # and in project config gitweb.pickaxe = 0|1;
 144         'pickaxe' => {
 145                 'sub' => \&feature_pickaxe,
 146                 'override' => 0,
 147                 'default' => [1]},
 148
 149         # Make gitweb use an alternative format of the URLs which can be
 150         # more readable and natural-looking: project name is embedded
 151         # directly in the path and the query string contains other
 152         # auxiliary information. All gitweb installations recognize
 153         # URL in either format; this configures in which formats gitweb
 154         # generates links.
 155
 156         # To enable system wide have in $GITWEB_CONFIG
 157         # $feature{'pathinfo'}{'default'} = [1];
 158         # Project specific override is not supported.
 159
 160         # Note that you will need to change the default location of CSS,
 161         # favicon, logo and possibly other files to an absolute URL. Also,
 162         # if gitweb.cgi serves as your indexfile, you will need to force
 163         # $my_uri to contain the script name in your $GITWEB_CONFIG.
 164         'pathinfo' => {
 165                 'override' => 0,
 166                 'default' => [0]},
 167 );
 168
 169 sub gitweb_check_feature {
 170         my ($name) = @_;
 171         return unless exists $feature{$name};
 172         my ($sub, $override, @defaults) = (
 173                 $feature{$name}{'sub'},
 174                 $feature{$name}{'override'},
 175                 @{$feature{$name}{'default'}});
 176         if (!$override) { return @defaults; }
 177         if (!defined $sub) {
 178                 warn "feature $name is not overrideable";
 179                 return @defaults;
 180         }
 181         return $sub->(@defaults);
 182 }
 183
 184 sub feature_blame {
 185         my ($val) = git_get_project_config('blame', '--bool');
 186
 187         if ($val eq 'true') {
 188                 return 1;
 189         } elsif ($val eq 'false') {
 190                 return 0;
 191         }
 192
 193         return $_[0];
 194 }
 195
 196 sub feature_snapshot {
 197         my ($ctype, $suffix, $command) = @_;
 198
 199         my ($val) = git_get_project_config('snapshot');
 200
 201         if ($val eq 'gzip') {
 202                 return ('x-gzip', 'gz', 'gzip');
 203         } elsif ($val eq 'bzip2') {
 204                 return ('x-bzip2', 'bz2', 'bzip2');
 205         } elsif ($val eq 'none') {
 206                 return ();
 207         }
 208
 209         return ($ctype, $suffix, $command);
 210 }
 211
 212 sub gitweb_have_snapshot {
 213         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 214         my $have_snapshot = (defined $ctype && defined $suffix);
 215
 216         return $have_snapshot;
 217 }
 218
 219 sub feature_pickaxe {
 220         my ($val) = git_get_project_config('pickaxe', '--bool');
 221
 222         if ($val eq 'true') {
 223                 return (1);
 224         } elsif ($val eq 'false') {
 225                 return (0);
 226         }
 227
 228         return ($_[0]);
 229 }
 230
 231 # checking HEAD file with -e is fragile if the repository was
 232 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 233 # and then pruned.
 234 sub check_head_link {
 235         my ($dir) = @_;
 236         my $headfile = "$dir/HEAD";
 237         return ((-e $headfile) ||
 238                 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 239 }
 240
 241 sub check_export_ok {
 242         my ($dir) = @_;
 243         return (check_head_link($dir) &&
 244                 (!$export_ok || -e "$dir/$export_ok"));
 245 }
 246
 247 # rename detection options for git-diff and git-diff-tree
 248 # - default is '-M', with the cost proportional to
 249 #   (number of removed files) * (number of new files).
 250 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 251 #   (number of changed files + number of removed files) * (number of new files)
 252 # - even more costly is '-C', '--find-copies-harder' with cost
 253 #   (number of files in the original tree) * (number of new files)
 254 # - one might want to include '-B' option, e.g. '-B', '-M'
 255 our @diff_opts = ('-M'); # taken from git_commit
 256
 257 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 258 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 259
 260 # version of the core git binary
 261 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 262
 263 $projects_list ||= $projectroot;
 264
 265 # ======================================================================
 266 # input validation and dispatch
 267 our $action = $cgi->param('a');
 268 if (defined $action) {
 269         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 270                 die_error(undef, "Invalid action parameter");
 271         }
 272 }
 273
 274 # parameters which are pathnames
 275 our $project = $cgi->param('p');
 276 if (defined $project) {
 277         if (!validate_pathname($project) ||
 278             !(-d "$projectroot/$project") ||
 279             !check_head_link("$projectroot/$project") ||
 280             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 281             ($strict_export && !project_in_list($project))) {
 282                 undef $project;
 283                 die_error(undef, "No such project");
 284         }
 285 }
 286
 287 our $file_name = $cgi->param('f');
 288 if (defined $file_name) {
 289         if (!validate_pathname($file_name)) {
 290                 die_error(undef, "Invalid file parameter");
 291         }
 292 }
 293
 294 our $file_parent = $cgi->param('fp');
 295 if (defined $file_parent) {
 296         if (!validate_pathname($file_parent)) {
 297                 die_error(undef, "Invalid file parent parameter");
 298         }
 299 }
 300
 301 # parameters which are refnames
 302 our $hash = $cgi->param('h');
 303 if (defined $hash) {
 304         if (!validate_refname($hash)) {
 305                 die_error(undef, "Invalid hash parameter");
 306         }
 307 }
 308
 309 our $hash_parent = $cgi->param('hp');
 310 if (defined $hash_parent) {
 311         if (!validate_refname($hash_parent)) {
 312                 die_error(undef, "Invalid hash parent parameter");
 313         }
 314 }
 315
 316 our $hash_base = $cgi->param('hb');
 317 if (defined $hash_base) {
 318         if (!validate_refname($hash_base)) {
 319                 die_error(undef, "Invalid hash base parameter");
 320         }
 321 }
 322
 323 our $hash_parent_base = $cgi->param('hpb');
 324 if (defined $hash_parent_base) {
 325         if (!validate_refname($hash_parent_base)) {
 326                 die_error(undef, "Invalid hash parent base parameter");
 327         }
 328 }
 329
 330 # other parameters
 331 our $page = $cgi->param('pg');
 332 if (defined $page) {
 333         if ($page =~ m/[^0-9]/) {
 334                 die_error(undef, "Invalid page parameter");
 335         }
 336 }
 337
 338 our $searchtext = $cgi->param('s');
 339 if (defined $searchtext) {
 340         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 341                 die_error(undef, "Invalid search parameter");
 342         }
 343         $searchtext = quotemeta $searchtext;
 344 }
 345
 346 our $searchtype = $cgi->param('st');
 347 if (defined $searchtype) {
 348         if ($searchtype =~ m/[^a-z]/) {
 349                 die_error(undef, "Invalid searchtype parameter");
 350         }
 351 }
 352
 353 # now read PATH_INFO and use it as alternative to parameters
 354 sub evaluate_path_info {
 355         return if defined $project;
 356         my $path_info = $ENV{"PATH_INFO"};
 357         return if !$path_info;
 358         $path_info =~ s,^/+,,;
 359         return if !$path_info;
 360         # find which part of PATH_INFO is project
 361         $project = $path_info;
 362         $project =~ s,/+$,,;
 363         while ($project && !check_head_link("$projectroot/$project")) {
 364                 $project =~ s,/*[^/]*$,,;
 365         }
 366         # validate project
 367         $project = validate_pathname($project);
 368         if (!$project ||
 369             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 370             ($strict_export && !project_in_list($project))) {
 371                 undef $project;
 372                 return;
 373         }
 374         # do not change any parameters if an action is given using the query string
 375         return if $action;
 376         $path_info =~ s,^$project/*,,;
 377         my ($refname, $pathname) = split(/:/, $path_info, 2);
 378         if (defined $pathname) {
 379                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 380                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 381                 $pathname =~ s,^/+,,;
 382                 if (!$pathname || substr($pathname, -1) eq "/") {
 383                         $action  ||= "tree";
 384                         $pathname =~ s,/$,,;
 385                 } else {
 386                         $action  ||= "blob_plain";
 387                 }
 388                 $hash_base ||= validate_refname($refname);
 389                 $file_name ||= validate_pathname($pathname);
 390         } elsif (defined $refname) {
 391                 # we got "project.git/branch"
 392                 $action ||= "shortlog";
 393                 $hash   ||= validate_refname($refname);
 394         }
 395 }
 396 evaluate_path_info();
 397
 398 # path to the current git repository
 399 our $git_dir;
 400 $git_dir = "$projectroot/$project" if $project;
 401
 402 # dispatch
 403 my %actions = (
 404         "blame" => \&git_blame2,
 405         "blobdiff" => \&git_blobdiff,
 406         "blobdiff_plain" => \&git_blobdiff_plain,
 407         "blob" => \&git_blob,
 408         "blob_plain" => \&git_blob_plain,
 409         "commitdiff" => \&git_commitdiff,
 410         "commitdiff_plain" => \&git_commitdiff_plain,
 411         "commit" => \&git_commit,
 412         "heads" => \&git_heads,
 413         "history" => \&git_history,
 414         "log" => \&git_log,
 415         "rss" => \&git_rss,
 416         "search" => \&git_search,
 417         "search_help" => \&git_search_help,
 418         "shortlog" => \&git_shortlog,
 419         "summary" => \&git_summary,
 420         "tag" => \&git_tag,
 421         "tags" => \&git_tags,
 422         "tree" => \&git_tree,
 423         "snapshot" => \&git_snapshot,
 424         # those below don't need $project
 425         "opml" => \&git_opml,
 426         "project_list" => \&git_project_list,
 427         "project_index" => \&git_project_index,
 428 );
 429
 430 if (defined $project) {
 431         $action ||= 'summary';
 432 } else {
 433         $action ||= 'project_list';
 434 }
 435 if (!defined($actions{$action})) {
 436         die_error(undef, "Unknown action");
 437 }
 438 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 439     !$project) {
 440         die_error(undef, "Project needed");
 441 }
 442 $actions{$action}->();
 443 exit;
 444
 445 ## ======================================================================
 446 ## action links
 447
 448 sub href(%) {
 449         my %params = @_;
 450         my $href = $my_uri;
 451
 452         # XXX: Warning: If you touch this, check the search form for updating,
 453         # too.
 454
 455         my @mapping = (
 456                 project => "p",
 457                 action => "a",
 458                 file_name => "f",
 459                 file_parent => "fp",
 460                 hash => "h",
 461                 hash_parent => "hp",
 462                 hash_base => "hb",
 463                 hash_parent_base => "hpb",
 464                 page => "pg",
 465                 order => "o",
 466                 searchtext => "s",
 467                 searchtype => "st",
 468         );
 469         my %mapping = @mapping;
 470
 471         $params{'project'} = $project unless exists $params{'project'};
 472
 473         my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 474         if ($use_pathinfo) {
 475                 # use PATH_INFO for project name
 476                 $href .= "/$params{'project'}" if defined $params{'project'};
 477                 delete $params{'project'};
 478
 479                 # Summary just uses the project path URL
 480                 if (defined $params{'action'} && $params{'action'} eq 'summary') {
 481                         delete $params{'action'};
 482                 }
 483         }
 484
 485         # now encode the parameters explicitly
 486         my @result = ();
 487         for (my $i = 0; $i < @mapping; $i += 2) {
 488                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 489                 if (defined $params{$name}) {
 490                         push @result, $symbol . "=" . esc_param($params{$name});
 491                 }
 492         }
 493         $href .= "?" . join(';', @result) if scalar @result;
 494
 495         return $href;
 496 }
 497
 498
 499 ## ======================================================================
 500 ## validation, quoting/unquoting and escaping
 501
 502 sub validate_pathname {
 503         my $input = shift || return undef;
 504
 505         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 506         # at the beginning, at the end, and between slashes.
 507         # also this catches doubled slashes
 508         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 509                 return undef;
 510         }
 511         # no null characters
 512         if ($input =~ m!\0!) {
 513                 return undef;
 514         }
 515         return $input;
 516 }
 517
 518 sub validate_refname {
 519         my $input = shift || return undef;
 520
 521         # textual hashes are O.K.
 522         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 523                 return $input;
 524         }
 525         # it must be correct pathname
 526         $input = validate_pathname($input)
 527                 or return undef;
 528         # restrictions on ref name according to git-check-ref-format
 529         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 530                 return undef;
 531         }
 532         return $input;
 533 }
 534
 535 # very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 536 sub to_utf8 {
 537         my $str = shift;
 538         return decode("utf8", $str, Encode::FB_DEFAULT);
 539 }
 540
 541 # quote unsafe chars, but keep the slash, even when it's not
 542 # correct, but quoted slashes look too horrible in bookmarks
 543 sub esc_param {
 544         my $str = shift;
 545         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 546         $str =~ s/\+/%2B/g;
 547         $str =~ s/ /\+/g;
 548         return $str;
 549 }
 550
 551 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 552 sub esc_url {
 553         my $str = shift;
 554         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 555         $str =~ s/\+/%2B/g;
 556         $str =~ s/ /\+/g;
 557         return $str;
 558 }
 559
 560 # replace invalid utf8 character with SUBSTITUTION sequence
 561 sub esc_html {
 562         my $str = shift;
 563         $str = to_utf8($str);
 564         $str = escapeHTML($str);
 565         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 566         $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 567         return $str;
 568 }
 569
 570 # git may return quoted and escaped filenames
 571 sub unquote {
 572         my $str = shift;
 573         if ($str =~ m/^"(.*)"$/) {
 574                 $str = $1;
 575                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 576         }
 577         return $str;
 578 }
 579
 580 # escape tabs (convert tabs to spaces)
 581 sub untabify {
 582         my $line = shift;
 583
 584         while ((my $pos = index($line, "\t")) != -1) {
 585                 if (my $count = (8 - ($pos % 8))) {
 586                         my $spaces = ' ' x $count;
 587                         $line =~ s/\t/$spaces/;
 588                 }
 589         }
 590
 591         return $line;
 592 }
 593
 594 sub project_in_list {
 595         my $project = shift;
 596         my @list = git_get_projects_list();
 597         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 598 }
 599
 600 ## ----------------------------------------------------------------------
 601 ## HTML aware string manipulation
 602
 603 sub chop_str {
 604         my $str = shift;
 605         my $len = shift;
 606         my $add_len = shift || 10;
 607
 608         # allow only $len chars, but don't cut a word if it would fit in $add_len
 609         # if it doesn't fit, cut it if it's still longer than the dots we would add
 610         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 611         my $body = $1;
 612         my $tail = $2;
 613         if (length($tail) > 4) {
 614                 $tail = " ...";
 615                 $body =~ s/&[^;]*$//; # remove chopped character entities
 616         }
 617         return "$body$tail";
 618 }
 619
 620 ## ----------------------------------------------------------------------
 621 ## functions returning short strings
 622
 623 # CSS class for given age value (in seconds)
 624 sub age_class {
 625         my $age = shift;
 626
 627         if ($age < 60*60*2) {
 628                 return "age0";
 629         } elsif ($age < 60*60*24*2) {
 630                 return "age1";
 631         } else {
 632                 return "age2";
 633         }
 634 }
 635
 636 # convert age in seconds to "nn units ago" string
 637 sub age_string {
 638         my $age = shift;
 639         my $age_str;
 640
 641         if ($age > 60*60*24*365*2) {
 642                 $age_str = (int $age/60/60/24/365);
 643                 $age_str .= " years ago";
 644         } elsif ($age > 60*60*24*(365/12)*2) {
 645                 $age_str = int $age/60/60/24/(365/12);
 646                 $age_str .= " months ago";
 647         } elsif ($age > 60*60*24*7*2) {
 648                 $age_str = int $age/60/60/24/7;
 649                 $age_str .= " weeks ago";
 650         } elsif ($age > 60*60*24*2) {
 651                 $age_str = int $age/60/60/24;
 652                 $age_str .= " days ago";
 653         } elsif ($age > 60*60*2) {
 654                 $age_str = int $age/60/60;
 655                 $age_str .= " hours ago";
 656         } elsif ($age > 60*2) {
 657                 $age_str = int $age/60;
 658                 $age_str .= " min ago";
 659         } elsif ($age > 2) {
 660                 $age_str = int $age;
 661                 $age_str .= " sec ago";
 662         } else {
 663                 $age_str .= " right now";
 664         }
 665         return $age_str;
 666 }
 667
 668 # convert file mode in octal to symbolic file mode string
 669 sub mode_str {
 670         my $mode = oct shift;
 671
 672         if (S_ISDIR($mode & S_IFMT)) {
 673                 return 'drwxr-xr-x';
 674         } elsif (S_ISLNK($mode)) {
 675                 return 'lrwxrwxrwx';
 676         } elsif (S_ISREG($mode)) {
 677                 # git cares only about the executable bit
 678                 if ($mode & S_IXUSR) {
 679                         return '-rwxr-xr-x';
 680                 } else {
 681                         return '-rw-r--r--';
 682                 };
 683         } else {
 684                 return '----------';
 685         }
 686 }
 687
 688 # convert file mode in octal to file type string
 689 sub file_type {
 690         my $mode = shift;
 691
 692         if ($mode !~ m/^[0-7]+$/) {
 693                 return $mode;
 694         } else {
 695                 $mode = oct $mode;
 696         }
 697
 698         if (S_ISDIR($mode & S_IFMT)) {
 699                 return "directory";
 700         } elsif (S_ISLNK($mode)) {
 701                 return "symlink";
 702         } elsif (S_ISREG($mode)) {
 703                 return "file";
 704         } else {
 705                 return "unknown";
 706         }
 707 }
 708
 709 ## ----------------------------------------------------------------------
 710 ## functions returning short HTML fragments, or transforming HTML fragments
 711 ## which don't beling to other sections
 712
 713 # format line of commit message or tag comment
 714 sub format_log_line_html {
 715         my $line = shift;
 716
 717         $line = esc_html($line);
 718         $line =~ s/ /&nbsp;/g;
 719         if ($line =~ m/([0-9a-fA-F]{40})/) {
 720                 my $hash_text = $1;
 721                 if (git_get_type($hash_text) eq "commit") {
 722                         my $link =
 723                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 724                                         -class => "text"}, $hash_text);
 725                         $line =~ s/$hash_text/$link/;
 726                 }
 727         }
 728         return $line;
 729 }
 730
 731 # format marker of refs pointing to given object
 732 sub format_ref_marker {
 733         my ($refs, $id) = @_;
 734         my $markers = '';
 735
 736         if (defined $refs->{$id}) {
 737                 foreach my $ref (@{$refs->{$id}}) {
 738                         my ($type, $name) = qw();
 739                         # e.g. tags/v2.6.11 or heads/next
 740                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 741                                 $type = $1;
 742                                 $name = $2;
 743                         } else {
 744                                 $type = "ref";
 745                                 $name = $ref;
 746                         }
 747
 748                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 749                 }
 750         }
 751
 752         if ($markers) {
 753                 return ' <span class="refs">'. $markers . '</span>';
 754         } else {
 755                 return "";
 756         }
 757 }
 758
 759 # format, perhaps shortened and with markers, title line
 760 sub format_subject_html {
 761         my ($long, $short, $href, $extra) = @_;
 762         $extra = '' unless defined($extra);
 763
 764         if (length($short) < length($long)) {
 765                 return $cgi->a({-href => $href, -class => "list subject",
 766                                 -title => to_utf8($long)},
 767                        esc_html($short) . $extra);
 768         } else {
 769                 return $cgi->a({-href => $href, -class => "list subject"},
 770                        esc_html($long)  . $extra);
 771         }
 772 }
 773
 774 sub format_diff_line {
 775         my $line = shift;
 776         my $char = substr($line, 0, 1);
 777         my $diff_class = "";
 778
 779         chomp $line;
 780
 781         if ($char eq '+') {
 782                 $diff_class = " add";
 783         } elsif ($char eq "-") {
 784                 $diff_class = " rem";
 785         } elsif ($char eq "@") {
 786                 $diff_class = " chunk_header";
 787         } elsif ($char eq "\\") {
 788                 $diff_class = " incomplete";
 789         }
 790         $line = untabify($line);
 791         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 792 }
 793
 794 ## ----------------------------------------------------------------------
 795 ## git utility subroutines, invoking git commands
 796
 797 # returns path to the core git executable and the --git-dir parameter as list
 798 sub git_cmd {
 799         return $GIT, '--git-dir='.$git_dir;
 800 }
 801
 802 # returns path to the core git executable and the --git-dir parameter as string
 803 sub git_cmd_str {
 804         return join(' ', git_cmd());
 805 }
 806
 807 # get HEAD ref of given project as hash
 808 sub git_get_head_hash {
 809         my $project = shift;
 810         my $o_git_dir = $git_dir;
 811         my $retval = undef;
 812         $git_dir = "$projectroot/$project";
 813         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 814                 my $head = <$fd>;
 815                 close $fd;
 816                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 817                         $retval = $1;
 818                 }
 819         }
 820         if (defined $o_git_dir) {
 821                 $git_dir = $o_git_dir;
 822         }
 823         return $retval;
 824 }
 825
 826 # get type of given object
 827 sub git_get_type {
 828         my $hash = shift;
 829
 830         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 831         my $type = <$fd>;
 832         close $fd or return;
 833         chomp $type;
 834         return $type;
 835 }
 836
 837 sub git_get_project_config {
 838         my ($key, $type) = @_;
 839
 840         return unless ($key);
 841         $key =~ s/^gitweb\.//;
 842         return if ($key =~ m/\W/);
 843
 844         my @x = (git_cmd(), 'repo-config');
 845         if (defined $type) { push @x, $type; }
 846         push @x, "--get";
 847         push @x, "gitweb.$key";
 848         my $val = qx(@x);
 849         chomp $val;
 850         return ($val);
 851 }
 852
 853 # get hash of given path at given ref
 854 sub git_get_hash_by_path {
 855         my $base = shift;
 856         my $path = shift || return undef;
 857         my $type = shift;
 858
 859         $path =~ s,/+$,,;
 860
 861         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 862                 or die_error(undef, "Open git-ls-tree failed");
 863         my $line = <$fd>;
 864         close $fd or return undef;
 865
 866         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 867         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 868         if (defined $type && $type ne $2) {
 869                 # type doesn't match
 870                 return undef;
 871         }
 872         return $3;
 873 }
 874
 875 ## ......................................................................
 876 ## git utility functions, directly accessing git repository
 877
 878 sub git_get_project_description {
 879         my $path = shift;
 880
 881         open my $fd, "$projectroot/$path/description" or return undef;
 882         my $descr = <$fd>;
 883         close $fd;
 884         chomp $descr;
 885         return $descr;
 886 }
 887
 888 sub git_get_project_url_list {
 889         my $path = shift;
 890
 891         open my $fd, "$projectroot/$path/cloneurl" or return;
 892         my @git_project_url_list = map { chomp; $_ } <$fd>;
 893         close $fd;
 894
 895         return wantarray ? @git_project_url_list : \@git_project_url_list;
 896 }
 897
 898 sub git_get_projects_list {
 899         my @list;
 900
 901         if (-d $projects_list) {
 902                 # search in directory
 903                 my $dir = $projects_list;
 904                 my $pfxlen = length("$dir");
 905
 906                 File::Find::find({
 907                         follow_fast => 1, # follow symbolic links
 908                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 909                         wanted => sub {
 910                                 # skip project-list toplevel, if we get it.
 911                                 return if (m!^[/.]$!);
 912                                 # only directories can be git repositories
 913                                 return unless (-d $_);
 914
 915                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 916                                 # we check related file in $projectroot
 917                                 if (check_export_ok("$projectroot/$subdir")) {
 918                                         push @list, { path => $subdir };
 919                                         $File::Find::prune = 1;
 920                                 }
 921                         },
 922                 }, "$dir");
 923
 924         } elsif (-f $projects_list) {
 925                 # read from file(url-encoded):
 926                 # 'git%2Fgit.git Linus+Torvalds'
 927                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 928                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 929                 open my ($fd), $projects_list or return;
 930                 while (my $line = <$fd>) {
 931                         chomp $line;
 932                         my ($path, $owner) = split ' ', $line;
 933                         $path = unescape($path);
 934                         $owner = unescape($owner);
 935                         if (!defined $path) {
 936                                 next;
 937                         }
 938                         if (check_export_ok("$projectroot/$path")) {
 939                                 my $pr = {
 940                                         path => $path,
 941                                         owner => to_utf8($owner),
 942                                 };
 943                                 push @list, $pr
 944                         }
 945                 }
 946                 close $fd;
 947         }
 948         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 949         return @list;
 950 }
 951
 952 sub git_get_project_owner {
 953         my $project = shift;
 954         my $owner;
 955
 956         return undef unless $project;
 957
 958         # read from file (url-encoded):
 959         # 'git%2Fgit.git Linus+Torvalds'
 960         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 961         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 962         if (-f $projects_list) {
 963                 open (my $fd , $projects_list);
 964                 while (my $line = <$fd>) {
 965                         chomp $line;
 966                         my ($pr, $ow) = split ' ', $line;
 967                         $pr = unescape($pr);
 968                         $ow = unescape($ow);
 969                         if ($pr eq $project) {
 970                                 $owner = to_utf8($ow);
 971                                 last;
 972                         }
 973                 }
 974                 close $fd;
 975         }
 976         if (!defined $owner) {
 977                 $owner = get_file_owner("$projectroot/$project");
 978         }
 979
 980         return $owner;
 981 }
 982
 983 sub git_get_references {
 984         my $type = shift || "";
 985         my %refs;
 986         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 987         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 988         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 989                 or return;
 990
 991         while (my $line = <$fd>) {
 992                 chomp $line;
 993                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 994                         if (defined $refs{$1}) {
 995                                 push @{$refs{$1}}, $2;
 996                         } else {
 997                                 $refs{$1} = [ $2 ];
 998                         }
 999                 }
1000         }
1001         close $fd or return;
1002         return \%refs;
1003 }
1004
1005 sub git_get_rev_name_tags {
1006         my $hash = shift || return undef;
1007
1008         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1009                 or return;
1010         my $name_rev = <$fd>;
1011         close $fd;
1012
1013         if ($name_rev =~ m|^$hash tags/(.*)$|) {
1014                 return $1;
1015         } else {
1016                 # catches also '$hash undefined' output
1017                 return undef;
1018         }
1019 }
1020
1021 ## ----------------------------------------------------------------------
1022 ## parse to hash functions
1023
1024 sub parse_date {
1025         my $epoch = shift;
1026         my $tz = shift || "-0000";
1027
1028         my %date;
1029         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1030         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1031         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1032         $date{'hour'} = $hour;
1033         $date{'minute'} = $min;
1034         $date{'mday'} = $mday;
1035         $date{'day'} = $days[$wday];
1036         $date{'month'} = $months[$mon];
1037         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1038                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1039         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1040                              $mday, $months[$mon], $hour ,$min;
1041
1042         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1043         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1044         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1045         $date{'hour_local'} = $hour;
1046         $date{'minute_local'} = $min;
1047         $date{'tz_local'} = $tz;
1048         return %date;
1049 }
1050
1051 sub parse_tag {
1052         my $tag_id = shift;
1053         my %tag;
1054         my @comment;
1055
1056         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1057         $tag{'id'} = $tag_id;
1058         while (my $line = <$fd>) {
1059                 chomp $line;
1060                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1061                         $tag{'object'} = $1;
1062                 } elsif ($line =~ m/^type (.+)$/) {
1063                         $tag{'type'} = $1;
1064                 } elsif ($line =~ m/^tag (.+)$/) {
1065                         $tag{'name'} = $1;
1066                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1067                         $tag{'author'} = $1;
1068                         $tag{'epoch'} = $2;
1069                         $tag{'tz'} = $3;
1070                 } elsif ($line =~ m/--BEGIN/) {
1071                         push @comment, $line;
1072                         last;
1073                 } elsif ($line eq "") {
1074                         last;
1075                 }
1076         }
1077         push @comment, <$fd>;
1078         $tag{'comment'} = \@comment;
1079         close $fd or return;
1080         if (!defined $tag{'name'}) {
1081                 return
1082         };
1083         return %tag
1084 }
1085
1086 sub git_get_last_activity {
1087         my ($path) = @_;
1088         my $fd;
1089
1090         $git_dir = "$projectroot/$path";
1091         open($fd, "-|", git_cmd(), 'for-each-ref',
1092              '--format=%(refname) %(committer)',
1093              '--sort=-committerdate',
1094              'refs/heads') or return;
1095         my $most_recent = <$fd>;
1096         close $fd or return;
1097         if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1098                 my $timestamp = $1;
1099                 my $age = time - $timestamp;
1100                 return ($age, age_string($age));
1101         }
1102 }
1103
1104 sub parse_commit {
1105         my $commit_id = shift;
1106         my $commit_text = shift;
1107
1108         my @commit_lines;
1109         my %co;
1110
1111         if (defined $commit_text) {
1112                 @commit_lines = @$commit_text;
1113         } else {
1114                 local $/ = "\0";
1115                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1116                         or return;
1117                 @commit_lines = split '\n', <$fd>;
1118                 close $fd or return;
1119                 pop @commit_lines;
1120         }
1121         my $header = shift @commit_lines;
1122         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1123                 return;
1124         }
1125         ($co{'id'}, my @parents) = split ' ', $header;
1126         $co{'parents'} = \@parents;
1127         $co{'parent'} = $parents[0];
1128         while (my $line = shift @commit_lines) {
1129                 last if $line eq "\n";
1130                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1131                         $co{'tree'} = $1;
1132                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1133                         $co{'author'} = $1;
1134                         $co{'author_epoch'} = $2;
1135                         $co{'author_tz'} = $3;
1136                         if ($co{'author'} =~ m/^([^<]+) </) {
1137                                 $co{'author_name'} = $1;
1138                         } else {
1139                                 $co{'author_name'} = $co{'author'};
1140                         }
1141                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1142                         $co{'committer'} = $1;
1143                         $co{'committer_epoch'} = $2;
1144                         $co{'committer_tz'} = $3;
1145                         $co{'committer_name'} = $co{'committer'};
1146                         $co{'committer_name'} =~ s/ <.*//;
1147                 }
1148         }
1149         if (!defined $co{'tree'}) {
1150                 return;
1151         };
1152
1153         foreach my $title (@commit_lines) {
1154                 $title =~ s/^    //;
1155                 if ($title ne "") {
1156                         $co{'title'} = chop_str($title, 80, 5);
1157                         # remove leading stuff of merges to make the interesting part visible
1158                         if (length($title) > 50) {
1159                                 $title =~ s/^Automatic //;
1160                                 $title =~ s/^merge (of|with) /Merge ... /i;
1161                                 if (length($title) > 50) {
1162                                         $title =~ s/(http|rsync):\/\///;
1163                                 }
1164                                 if (length($title) > 50) {
1165                                         $title =~ s/(master|www|rsync)\.//;
1166                                 }
1167                                 if (length($title) > 50) {
1168                                         $title =~ s/kernel.org:?//;
1169                                 }
1170                                 if (length($title) > 50) {
1171                                         $title =~ s/\/pub\/scm//;
1172                                 }
1173                         }
1174                         $co{'title_short'} = chop_str($title, 50, 5);
1175                         last;
1176                 }
1177         }
1178         if ($co{'title'} eq "") {
1179                 $co{'title'} = $co{'title_short'} = '(no commit message)';
1180         }
1181         # remove added spaces
1182         foreach my $line (@commit_lines) {
1183                 $line =~ s/^    //;
1184         }
1185         $co{'comment'} = \@commit_lines;
1186
1187         my $age = time - $co{'committer_epoch'};
1188         $co{'age'} = $age;
1189         $co{'age_string'} = age_string($age);
1190         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1191         if ($age > 60*60*24*7*2) {
1192                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1193                 $co{'age_string_age'} = $co{'age_string'};
1194         } else {
1195                 $co{'age_string_date'} = $co{'age_string'};
1196                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1197         }
1198         return %co;
1199 }
1200
1201 # parse ref from ref_file, given by ref_id, with given type
1202 sub parse_ref {
1203         my $ref_file = shift;
1204         my $ref_id = shift;
1205         my $type = shift || git_get_type($ref_id);
1206         my %ref_item;
1207
1208         $ref_item{'type'} = $type;
1209         $ref_item{'id'} = $ref_id;
1210         $ref_item{'epoch'} = 0;
1211         $ref_item{'age'} = "unknown";
1212         if ($type eq "tag") {
1213                 my %tag = parse_tag($ref_id);
1214                 $ref_item{'comment'} = $tag{'comment'};
1215                 if ($tag{'type'} eq "commit") {
1216                         my %co = parse_commit($tag{'object'});
1217                         $ref_item{'epoch'} = $co{'committer_epoch'};
1218                         $ref_item{'age'} = $co{'age_string'};
1219                 } elsif (defined($tag{'epoch'})) {
1220                         my $age = time - $tag{'epoch'};
1221                         $ref_item{'epoch'} = $tag{'epoch'};
1222                         $ref_item{'age'} = age_string($age);
1223                 }
1224                 $ref_item{'reftype'} = $tag{'type'};
1225                 $ref_item{'name'} = $tag{'name'};
1226                 $ref_item{'refid'} = $tag{'object'};
1227         } elsif ($type eq "commit"){
1228                 my %co = parse_commit($ref_id);
1229                 $ref_item{'reftype'} = "commit";
1230                 $ref_item{'name'} = $ref_file;
1231                 $ref_item{'title'} = $co{'title'};
1232                 $ref_item{'refid'} = $ref_id;
1233                 $ref_item{'epoch'} = $co{'committer_epoch'};
1234                 $ref_item{'age'} = $co{'age_string'};
1235         } else {
1236                 $ref_item{'reftype'} = $type;
1237                 $ref_item{'name'} = $ref_file;
1238                 $ref_item{'refid'} = $ref_id;
1239         }
1240
1241         return %ref_item;
1242 }
1243
1244 # parse line of git-diff-tree "raw" output
1245 sub parse_difftree_raw_line {
1246         my $line = shift;
1247         my %res;
1248
1249         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1250         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1251         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1252                 $res{'from_mode'} = $1;
1253                 $res{'to_mode'} = $2;
1254                 $res{'from_id'} = $3;
1255                 $res{'to_id'} = $4;
1256                 $res{'status'} = $5;
1257                 $res{'similarity'} = $6;
1258                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1259                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1260                 } else {
1261                         $res{'file'} = unquote($7);
1262                 }
1263         }
1264         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1265         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1266                 $res{'commit'} = $1;
1267         }
1268
1269         return wantarray ? %res : \%res;
1270 }
1271
1272 # parse line of git-ls-tree output
1273 sub parse_ls_tree_line ($;%) {
1274         my $line = shift;
1275         my %opts = @_;
1276         my %res;
1277
1278         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1279         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1280
1281         $res{'mode'} = $1;
1282         $res{'type'} = $2;
1283         $res{'hash'} = $3;
1284         if ($opts{'-z'}) {
1285                 $res{'name'} = $4;
1286         } else {
1287                 $res{'name'} = unquote($4);
1288         }
1289
1290         return wantarray ? %res : \%res;
1291 }
1292
1293 ## ......................................................................
1294 ## parse to array of hashes functions
1295
1296 sub git_get_refs_list {
1297         my $type = shift || "";
1298         my %refs;
1299         my @reflist;
1300
1301         my @refs;
1302         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1303                 or return;
1304         while (my $line = <$fd>) {
1305                 chomp $line;
1306                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1307                         if (defined $refs{$1}) {
1308                                 push @{$refs{$1}}, $2;
1309                         } else {
1310                                 $refs{$1} = [ $2 ];
1311                         }
1312
1313                         if (! $4) { # unpeeled, direct reference
1314                                 push @refs, { hash => $1, name => $3 }; # without type
1315                         } elsif ($3 eq $refs[-1]{'name'}) {
1316                                 # most likely a tag is followed by its peeled
1317                                 # (deref) one, and when that happens we know the
1318                                 # previous one was of type 'tag'.
1319                                 $refs[-1]{'type'} = "tag";
1320                         }
1321                 }
1322         }
1323         close $fd;
1324
1325         foreach my $ref (@refs) {
1326                 my $ref_file = $ref->{'name'};
1327                 my $ref_id   = $ref->{'hash'};
1328
1329                 my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1330                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1331
1332                 push @reflist, \%ref_item;
1333         }
1334         # sort refs by age
1335         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1336         return (\@reflist, \%refs);
1337 }
1338
1339 ## ----------------------------------------------------------------------
1340 ## filesystem-related functions
1341
1342 sub get_file_owner {
1343         my $path = shift;
1344
1345         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1346         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1347         if (!defined $gcos) {
1348                 return undef;
1349         }
1350         my $owner = $gcos;
1351         $owner =~ s/[,;].*$//;
1352         return to_utf8($owner);
1353 }
1354
1355 ## ......................................................................
1356 ## mimetype related functions
1357
1358 sub mimetype_guess_file {
1359         my $filename = shift;
1360         my $mimemap = shift;
1361         -r $mimemap or return undef;
1362
1363         my %mimemap;
1364         open(MIME, $mimemap) or return undef;
1365         while (<MIME>) {
1366                 next if m/^#/; # skip comments
1367                 my ($mime, $exts) = split(/\t+/);
1368                 if (defined $exts) {
1369                         my @exts = split(/\s+/, $exts);
1370                         foreach my $ext (@exts) {
1371                                 $mimemap{$ext} = $mime;
1372                         }
1373                 }
1374         }
1375         close(MIME);
1376
1377         $filename =~ /\.([^.]*)$/;
1378         return $mimemap{$1};
1379 }
1380
1381 sub mimetype_guess {
1382         my $filename = shift;
1383         my $mime;
1384         $filename =~ /\./ or return undef;
1385
1386         if ($mimetypes_file) {
1387                 my $file = $mimetypes_file;
1388                 if ($file !~ m!^/!) { # if it is relative path
1389                         # it is relative to project
1390                         $file = "$projectroot/$project/$file";
1391                 }
1392                 $mime = mimetype_guess_file($filename, $file);
1393         }
1394         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1395         return $mime;
1396 }
1397
1398 sub blob_mimetype {
1399         my $fd = shift;
1400         my $filename = shift;
1401
1402         if ($filename) {
1403                 my $mime = mimetype_guess($filename);
1404                 $mime and return $mime;
1405         }
1406
1407         # just in case
1408         return $default_blob_plain_mimetype unless $fd;
1409
1410         if (-T $fd) {
1411                 return 'text/plain' .
1412                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1413         } elsif (! $filename) {
1414                 return 'application/octet-stream';
1415         } elsif ($filename =~ m/\.png$/i) {
1416                 return 'image/png';
1417         } elsif ($filename =~ m/\.gif$/i) {
1418                 return 'image/gif';
1419         } elsif ($filename =~ m/\.jpe?g$/i) {
1420                 return 'image/jpeg';
1421         } else {
1422                 return 'application/octet-stream';
1423         }
1424 }
1425
1426 ## ======================================================================
1427 ## functions printing HTML: header, footer, error page
1428
1429 sub git_header_html {
1430         my $status = shift || "200 OK";
1431         my $expires = shift;
1432
1433         my $title = "$site_name";
1434         if (defined $project) {
1435                 $title .= " - $project";
1436                 if (defined $action) {
1437                         $title .= "/$action";
1438                         if (defined $file_name) {
1439                                 $title .= " - " . esc_html($file_name);
1440                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1441                                         $title .= "/";
1442                                 }
1443                         }
1444                 }
1445         }
1446         my $content_type;
1447         # require explicit support from the UA if we are to send the page as
1448         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1449         # we have to do this because MSIE sometimes globs '*/*', pretending to
1450         # support xhtml+xml but choking when it gets what it asked for.
1451         if (defined $cgi->http('HTTP_ACCEPT') &&
1452             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1453             $cgi->Accept('application/xhtml+xml') != 0) {
1454                 $content_type = 'application/xhtml+xml';
1455         } else {
1456                 $content_type = 'text/html';
1457         }
1458         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1459                            -status=> $status, -expires => $expires);
1460         print <<EOF;
1461 <?xml version="1.0" encoding="utf-8"?>
1462 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1463 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1464 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1465 <!-- git core binaries version $git_version -->
1466 <head>
1467 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1468 <meta name="generator" content="gitweb/$version git/$git_version"/>
1469 <meta name="robots" content="index, nofollow"/>
1470 <title>$title</title>
1471 EOF
1472 # print out each stylesheet that exist
1473         if (defined $stylesheet) {
1474 #provides backwards capability for those people who define style sheet in a config file
1475                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1476         } else {
1477                 foreach my $stylesheet (@stylesheets) {
1478                         next unless $stylesheet;
1479                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1480                 }
1481         }
1482         if (defined $project) {
1483                 printf('<link rel="alternate" title="%s log" '.
1484                        'href="%s" type="application/rss+xml"/>'."\n",
1485                        esc_param($project), href(action=>"rss"));
1486         } else {
1487                 printf('<link rel="alternate" title="%s projects list" '.
1488                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1489                        $site_name, href(project=>undef, action=>"project_index"));
1490                 printf('<link rel="alternate" title="%s projects logs" '.
1491                        'href="%s" type="text/x-opml"/>'."\n",
1492                        $site_name, href(project=>undef, action=>"opml"));
1493         }
1494         if (defined $favicon) {
1495                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1496         }
1497
1498         print "</head>\n" .
1499               "<body>\n";
1500
1501         if (-f $site_header) {
1502                 open (my $fd, $site_header);
1503                 print <$fd>;
1504                 close $fd;
1505         }
1506
1507         print "<div class=\"page_header\">\n" .
1508               $cgi->a({-href => esc_url($logo_url),
1509                        -title => $logo_label},
1510                       qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1511         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1512         if (defined $project) {
1513                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1514                 if (defined $action) {
1515                         print " / $action";
1516                 }
1517                 print "\n";
1518                 if (!defined $searchtext) {
1519                         $searchtext = "";
1520                 }
1521                 my $search_hash;
1522                 if (defined $hash_base) {
1523                         $search_hash = $hash_base;
1524                 } elsif (defined $hash) {
1525                         $search_hash = $hash;
1526                 } else {
1527                         $search_hash = "HEAD";
1528                 }
1529                 $cgi->param("a", "search");
1530                 $cgi->param("h", $search_hash);
1531                 $cgi->param("p", $project);
1532                 print $cgi->startform(-method => "get", -action => $my_uri) .
1533                       "<div class=\"search\">\n" .
1534                       $cgi->hidden(-name => "p") . "\n" .
1535                       $cgi->hidden(-name => "a") . "\n" .
1536                       $cgi->hidden(-name => "h") . "\n" .
1537                       $cgi->popup_menu(-name => 'st', -default => 'commit',
1538                                        -values => ['commit', 'author', 'committer', 'pickaxe']) .
1539                       $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1540                       " search:\n",
1541                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1542                       "</div>" .
1543                       $cgi->end_form() . "\n";
1544         }
1545         print "</div>\n";
1546 }
1547
1548 sub git_footer_html {
1549         print "<div class=\"page_footer\">\n";
1550         if (defined $project) {
1551                 my $descr = git_get_project_description($project);
1552                 if (defined $descr) {
1553                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1554                 }
1555                 print $cgi->a({-href => href(action=>"rss"),
1556                               -class => "rss_logo"}, "RSS") . "\n";
1557         } else {
1558                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1559                               -class => "rss_logo"}, "OPML") . " ";
1560                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1561                               -class => "rss_logo"}, "TXT") . "\n";
1562         }
1563         print "</div>\n" ;
1564
1565         if (-f $site_footer) {
1566                 open (my $fd, $site_footer);
1567                 print <$fd>;
1568                 close $fd;
1569         }
1570
1571         print "</body>\n" .
1572               "</html>";
1573 }
1574
1575 sub die_error {
1576         my $status = shift || "403 Forbidden";
1577         my $error = shift || "Malformed query, file missing or permission denied";
1578
1579         git_header_html($status);
1580         print <<EOF;
1581 <div class="page_body">
1582 <br /><br />
1583 $status - $error
1584 <br />
1585 </div>
1586 EOF
1587         git_footer_html();
1588         exit;
1589 }
1590
1591 ## ----------------------------------------------------------------------
1592 ## functions printing or outputting HTML: navigation
1593
1594 sub git_print_page_nav {
1595         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1596         $extra = '' if !defined $extra; # pager or formats
1597
1598         my @navs = qw(summary shortlog log commit commitdiff tree);
1599         if ($suppress) {
1600                 @navs = grep { $_ ne $suppress } @navs;
1601         }
1602
1603         my %arg = map { $_ => {action=>$_} } @navs;
1604         if (defined $head) {
1605                 for (qw(commit commitdiff)) {
1606                         $arg{$_}{hash} = $head;
1607                 }
1608                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1609                         for (qw(shortlog log)) {
1610                                 $arg{$_}{hash} = $head;
1611                         }
1612                 }
1613         }
1614         $arg{tree}{hash} = $treehead if defined $treehead;
1615         $arg{tree}{hash_base} = $treebase if defined $treebase;
1616
1617         print "<div class=\"page_nav\">\n" .
1618                 (join " | ",
1619                  map { $_ eq $current ?
1620                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1621                  } @navs);
1622         print "<br/>\n$extra<br/>\n" .
1623               "</div>\n";
1624 }
1625
1626 sub format_paging_nav {
1627         my ($action, $hash, $head, $page, $nrevs) = @_;
1628         my $paging_nav;
1629
1630
1631         if ($hash ne $head || $page) {
1632                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1633         } else {
1634                 $paging_nav .= "HEAD";
1635         }
1636
1637         if ($page > 0) {
1638                 $paging_nav .= " &sdot; " .
1639                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1640                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1641         } else {
1642                 $paging_nav .= " &sdot; prev";
1643         }
1644
1645         if ($nrevs >= (100 * ($page+1)-1)) {
1646                 $paging_nav .= " &sdot; " .
1647                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1648                                  -accesskey => "n", -title => "Alt-n"}, "next");
1649         } else {
1650                 $paging_nav .= " &sdot; next";
1651         }
1652
1653         return $paging_nav;
1654 }
1655
1656 ## ......................................................................
1657 ## functions printing or outputting HTML: div
1658
1659 sub git_print_header_div {
1660         my ($action, $title, $hash, $hash_base) = @_;
1661         my %args = ();
1662
1663         $args{action} = $action;
1664         $args{hash} = $hash if $hash;
1665         $args{hash_base} = $hash_base if $hash_base;
1666
1667         print "<div class=\"header\">\n" .
1668               $cgi->a({-href => href(%args), -class => "title"},
1669               $title ? $title : $action) .
1670               "\n</div>\n";
1671 }
1672
1673 #sub git_print_authorship (\%) {
1674 sub git_print_authorship {
1675         my $co = shift;
1676
1677         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1678         print "<div class=\"author_date\">" .
1679               esc_html($co->{'author_name'}) .
1680               " [$ad{'rfc2822'}";
1681         if ($ad{'hour_local'} < 6) {
1682                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1683                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1684         } else {
1685                 printf(" (%02d:%02d %s)",
1686                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1687         }
1688         print "]</div>\n";
1689 }
1690
1691 sub git_print_page_path {
1692         my $name = shift;
1693         my $type = shift;
1694         my $hb = shift;
1695
1696
1697         print "<div class=\"page_path\">";
1698         print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1699                       -title => 'tree root'}, "[$project]");
1700         print " / ";
1701         if (defined $name) {
1702                 my @dirname = split '/', $name;
1703                 my $basename = pop @dirname;
1704                 my $fullname = '';
1705
1706                 foreach my $dir (@dirname) {
1707                         $fullname .= ($fullname ? '/' : '') . $dir;
1708                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1709                                                      hash_base=>$hb),
1710                                       -title => $fullname}, esc_html($dir));
1711                         print " / ";
1712                 }
1713                 if (defined $type && $type eq 'blob') {
1714                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1715                                                      hash_base=>$hb),
1716                                       -title => $name}, esc_html($basename));
1717                 } elsif (defined $type && $type eq 'tree') {
1718                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1719                                                      hash_base=>$hb),
1720                                       -title => $name}, esc_html($basename));
1721                         print " / ";
1722                 } else {
1723                         print esc_html($basename);
1724                 }
1725         }
1726         print "<br/></div>\n";
1727 }
1728
1729 # sub git_print_log (\@;%) {
1730 sub git_print_log ($;%) {
1731         my $log = shift;
1732         my %opts = @_;
1733
1734         if ($opts{'-remove_title'}) {
1735                 # remove title, i.e. first line of log
1736                 shift @$log;
1737         }
1738         # remove leading empty lines
1739         while (defined $log->[0] && $log->[0] eq "") {
1740                 shift @$log;
1741         }
1742
1743         # print log
1744         my $signoff = 0;
1745         my $empty = 0;
1746         foreach my $line (@$log) {
1747                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1748                         $signoff = 1;
1749                         $empty = 0;
1750                         if (! $opts{'-remove_signoff'}) {
1751                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1752                                 next;
1753                         } else {
1754                                 # remove signoff lines
1755                                 next;
1756                         }
1757                 } else {
1758                         $signoff = 0;
1759                 }
1760
1761                 # print only one empty line
1762                 # do not print empty line after signoff
1763                 if ($line eq "") {
1764                         next if ($empty || $signoff);
1765                         $empty = 1;
1766                 } else {
1767                         $empty = 0;
1768                 }
1769
1770                 print format_log_line_html($line) . "<br/>\n";
1771         }
1772
1773         if ($opts{'-final_empty_line'}) {
1774                 # end with single empty line
1775                 print "<br/>\n" unless $empty;
1776         }
1777 }
1778
1779 # print tree entry (row of git_tree), but without encompassing <tr> element
1780 sub git_print_tree_entry {
1781         my ($t, $basedir, $hash_base, $have_blame) = @_;
1782
1783         my %base_key = ();
1784         $base_key{hash_base} = $hash_base if defined $hash_base;
1785
1786         # The format of a table row is: mode list link.  Where mode is
1787         # the mode of the entry, list is the name of the entry, an href,
1788         # and link is the action links of the entry.
1789
1790         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1791         if ($t->{'type'} eq "blob") {
1792                 print "<td class=\"list\">" .
1793                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1794                                                file_name=>"$basedir$t->{'name'}", %base_key),
1795                                 -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1796                 print "<td class=\"link\">";
1797                 print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1798                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1799                               "blob");
1800                 if ($have_blame) {
1801                         print " | " .
1802                               $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1803                                                            file_name=>"$basedir$t->{'name'}", %base_key)},
1804                                             "blame");
1805                 }
1806                 if (defined $hash_base) {
1807                         print " | " .
1808                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1809                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1810                                       "history");
1811                 }
1812                 print " | " .
1813                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1814                                                file_name=>"$basedir$t->{'name'}")},
1815                                 "raw");
1816                 print "</td>\n";
1817
1818         } elsif ($t->{'type'} eq "tree") {
1819                 print "<td class=\"list\">";
1820                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1821                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1822                               esc_html($t->{'name'}));
1823                 print "</td>\n";
1824                 print "<td class=\"link\">";
1825                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1826                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1827                               "tree");
1828                 if (defined $hash_base) {
1829                         print " | " .
1830                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1831                                                      file_name=>"$basedir$t->{'name'}")},
1832                                       "history");
1833                 }
1834                 print "</td>\n";
1835         }
1836 }
1837
1838 ## ......................................................................
1839 ## functions printing large fragments of HTML
1840
1841 sub git_difftree_body {
1842         my ($difftree, $hash, $parent) = @_;
1843
1844         print "<div class=\"list_head\">\n";
1845         if ($#{$difftree} > 10) {
1846                 print(($#{$difftree} + 1) . " files changed:\n");
1847         }
1848         print "</div>\n";
1849
1850         print "<table class=\"diff_tree\">\n";
1851         my $alternate = 1;
1852         my $patchno = 0;
1853         foreach my $line (@{$difftree}) {
1854                 my %diff = parse_difftree_raw_line($line);
1855
1856                 if ($alternate) {
1857                         print "<tr class=\"dark\">\n";
1858                 } else {
1859                         print "<tr class=\"light\">\n";
1860                 }
1861                 $alternate ^= 1;
1862
1863                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1864                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1865                 if ($diff{'to_mode'} ne ('0' x 6)) {
1866                         $to_mode_oct = oct $diff{'to_mode'};
1867                         if (S_ISREG($to_mode_oct)) { # only for regular file
1868                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1869                         }
1870                         $to_file_type = file_type($diff{'to_mode'});
1871                 }
1872                 if ($diff{'from_mode'} ne ('0' x 6)) {
1873                         $from_mode_oct = oct $diff{'from_mode'};
1874                         if (S_ISREG($to_mode_oct)) { # only for regular file
1875                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1876                         }
1877                         $from_file_type = file_type($diff{'from_mode'});
1878                 }
1879
1880                 if ($diff{'status'} eq "A") { # created
1881                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1882                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1883                         $mode_chng   .= "]</span>";
1884                         print "<td>";
1885                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1886                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1887                                       -class => "list"}, esc_html($diff{'file'}));
1888                         print "</td>\n";
1889                         print "<td>$mode_chng</td>\n";
1890                         print "<td class=\"link\">";
1891                         if ($action eq 'commitdiff') {
1892                                 # link to patch
1893                                 $patchno++;
1894                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1895                         }
1896                         print "</td>\n";
1897
1898                 } elsif ($diff{'status'} eq "D") { # deleted
1899                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1900                         print "<td>";
1901                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1902                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1903                                        -class => "list"}, esc_html($diff{'file'}));
1904                         print "</td>\n";
1905                         print "<td>$mode_chng</td>\n";
1906                         print "<td class=\"link\">";
1907                         if ($action eq 'commitdiff') {
1908                                 # link to patch
1909                                 $patchno++;
1910                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1911                                 print " | ";
1912                         }
1913                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1914                                                      hash_base=>$parent, file_name=>$diff{'file'})},
1915                                       "blob") . " | ";
1916                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1917                                                      file_name=>$diff{'file'})},
1918                                       "blame") . " | ";
1919                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1920                                                      file_name=>$diff{'file'})},
1921                                       "history");
1922                         print "</td>\n";
1923
1924                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1925                         my $mode_chnge = "";
1926                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1927                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1928                                 if ($from_file_type != $to_file_type) {
1929                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1930                                 }
1931                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1932                                         if ($from_mode_str && $to_mode_str) {
1933                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1934                                         } elsif ($to_mode_str) {
1935                                                 $mode_chnge .= " mode: $to_mode_str";
1936                                         }
1937                                 }
1938                                 $mode_chnge .= "]</span>\n";
1939                         }
1940                         print "<td>";
1941                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1942                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1943                                       -class => "list"}, esc_html($diff{'file'}));
1944                         print "</td>\n";
1945                         print "<td>$mode_chnge</td>\n";
1946                         print "<td class=\"link\">";
1947                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1948                                 if ($action eq 'commitdiff') {
1949                                         # link to patch
1950                                         $patchno++;
1951                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1952                                 } else {
1953                                         print $cgi->a({-href => href(action=>"blobdiff",
1954                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1955                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1956                                                                      file_name=>$diff{'file'})},
1957                                                       "diff");
1958                                 }
1959                                 print " | ";
1960                         }
1961                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1962                                                      hash_base=>$hash, file_name=>$diff{'file'})},
1963                                       "blob") . " | ";
1964                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1965                                                      file_name=>$diff{'file'})},
1966                                       "blame") . " | ";
1967                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1968                                                      file_name=>$diff{'file'})},
1969                                       "history");
1970                         print "</td>\n";
1971
1972                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1973                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1974                         my $nstatus = $status_name{$diff{'status'}};
1975                         my $mode_chng = "";
1976                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1977                                 # mode also for directories, so we cannot use $to_mode_str
1978                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1979                         }
1980                         print "<td>" .
1981                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1982                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1983                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1984                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1985                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1986                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1987                                       -class => "list"}, esc_html($diff{'from_file'})) .
1988                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1989                               "<td class=\"link\">";
1990                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1991                                 if ($action eq 'commitdiff') {
1992                                         # link to patch
1993                                         $patchno++;
1994                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1995                                 } else {
1996                                         print $cgi->a({-href => href(action=>"blobdiff",
1997                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1998                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1999                                                                      file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2000                                                       "diff");
2001                                 }
2002                                 print " | ";
2003                         }
2004                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2005                                                      hash_base=>$parent, file_name=>$diff{'from_file'})},
2006                                       "blob") . " | ";
2007                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2008                                                      file_name=>$diff{'from_file'})},
2009                                       "blame") . " | ";
2010                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2011                                                     file_name=>$diff{'from_file'})},
2012                                       "history");
2013                         print "</td>\n";
2014
2015                 } # we should not encounter Unmerged (U) or Unknown (X) status
2016                 print "</tr>\n";
2017         }
2018         print "</table>\n";
2019 }
2020
2021 sub git_patchset_body {
2022         my ($fd, $difftree, $hash, $hash_parent) = @_;
2023
2024         my $patch_idx = 0;
2025         my $in_header = 0;
2026         my $patch_found = 0;
2027         my $diffinfo;
2028
2029         print "<div class=\"patchset\">\n";
2030
2031         LINE:
2032         while (my $patch_line = <$fd>) {
2033                 chomp $patch_line;
2034
2035                 if ($patch_line =~ m/^diff /) { # "git diff" header
2036                         # beginning of patch (in patchset)
2037                         if ($patch_found) {
2038                                 # close previous patch
2039                                 print "</div>\n"; # class="patch"
2040                         } else {
2041                                 # first patch in patchset
2042                                 $patch_found = 1;
2043                         }
2044                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2045
2046                         if (ref($difftree->[$patch_idx]) eq "HASH") {
2047                                 $diffinfo = $difftree->[$patch_idx];
2048                         } else {
2049                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2050                         }
2051                         $patch_idx++;
2052
2053                         # for now, no extended header, hence we skip empty patches
2054                         # companion to  next LINE if $in_header;
2055                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
2056                                 $in_header = 1;
2057                                 next LINE;
2058                         }
2059
2060                         if ($diffinfo->{'status'} eq "A") { # added
2061                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
2062                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2063                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2064                                               $diffinfo->{'to_id'}) . " (new)" .
2065                                       "</div>\n"; # class="diff_info"
2066
2067                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
2068                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
2069                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2070                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2071                                               $diffinfo->{'from_id'}) . " (deleted)" .
2072                                       "</div>\n"; # class="diff_info"
2073
2074                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
2075                                  $diffinfo->{'status'} eq "C" || # copied
2076                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
2077                                 print "<div class=\"diff_info\">" .
2078                                       file_type($diffinfo->{'from_mode'}) . ":" .
2079                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2080                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
2081                                               $diffinfo->{'from_id'}) .
2082                                       " -> " .
2083                                       file_type($diffinfo->{'to_mode'}) . ":" .
2084                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2085                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
2086                                               $diffinfo->{'to_id'});
2087                                 print "</div>\n"; # class="diff_info"
2088
2089                         } else { # modified, mode changed, ...
2090                                 print "<div class=\"diff_info\">" .
2091                                       file_type($diffinfo->{'from_mode'}) . ":" .
2092                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2093                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2094                                               $diffinfo->{'from_id'}) .
2095                                       " -> " .
2096                                       file_type($diffinfo->{'to_mode'}) . ":" .
2097                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2098                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2099                                               $diffinfo->{'to_id'});
2100                                 print "</div>\n"; # class="diff_info"
2101                         }
2102
2103                         #print "<div class=\"diff extended_header\">\n";
2104                         $in_header = 1;
2105                         next LINE;
2106                 } # start of patch in patchset
2107
2108
2109                 if ($in_header && $patch_line =~ m/^---/) {
2110                         #print "</div>\n"; # class="diff extended_header"
2111                         $in_header = 0;
2112
2113                         my $file = $diffinfo->{'from_file'};
2114                         $file  ||= $diffinfo->{'file'};
2115                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2116                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
2117                                         -class => "list"}, esc_html($file));
2118                         $patch_line =~ s|a/.*$|a/$file|g;
2119                         print "<div class=\"diff from_file\">$patch_line</div>\n";
2120
2121                         $patch_line = <$fd>;
2122                         chomp $patch_line;
2123
2124                         #$patch_line =~ m/^+++/;
2125                         $file    = $diffinfo->{'to_file'};
2126                         $file  ||= $diffinfo->{'file'};
2127                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2128                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
2129                                         -class => "list"}, esc_html($file));
2130                         $patch_line =~ s|b/.*|b/$file|g;
2131                         print "<div class=\"diff to_file\">$patch_line</div>\n";
2132
2133                         next LINE;
2134                 }
2135                 next LINE if $in_header;
2136
2137                 print format_diff_line($patch_line);
2138         }
2139         print "</div>\n" if $patch_found; # class="patch"
2140
2141         print "</div>\n"; # class="patchset"
2142 }
2143
2144 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2145
2146 sub git_shortlog_body {
2147         # uses global variable $project
2148         my ($revlist, $from, $to, $refs, $extra) = @_;
2149
2150         $from = 0 unless defined $from;
2151         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2152
2153         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2154         my $alternate = 1;
2155         for (my $i = $from; $i <= $to; $i++) {
2156                 my $commit = $revlist->[$i];
2157                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2158                 my $ref = format_ref_marker($refs, $commit);
2159                 my %co = parse_commit($commit);
2160                 if ($alternate) {
2161                         print "<tr class=\"dark\">\n";
2162                 } else {
2163                         print "<tr class=\"light\">\n";
2164                 }
2165                 $alternate ^= 1;
2166                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2167                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2168                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2169                       "<td>";
2170                 print format_subject_html($co{'title'}, $co{'title_short'},
2171                                           href(action=>"commit", hash=>$commit), $ref);
2172                 print "</td>\n" .
2173                       "<td class=\"link\">" .
2174                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2175                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2176                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2177                 if (gitweb_have_snapshot()) {
2178                         print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2179                 }
2180                 print "</td>\n" .
2181                       "</tr>\n";
2182         }
2183         if (defined $extra) {
2184                 print "<tr>\n" .
2185                       "<td colspan=\"4\">$extra</td>\n" .
2186                       "</tr>\n";
2187         }
2188         print "</table>\n";
2189 }
2190
2191 sub git_history_body {
2192         # Warning: assumes constant type (blob or tree) during history
2193         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2194
2195         $from = 0 unless defined $from;
2196         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2197
2198         print "<table class=\"history\" cellspacing=\"0\">\n";
2199         my $alternate = 1;
2200         for (my $i = $from; $i <= $to; $i++) {
2201                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2202                         next;
2203                 }
2204
2205                 my $commit = $1;
2206                 my %co = parse_commit($commit);
2207                 if (!%co) {
2208                         next;
2209                 }
2210
2211                 my $ref = format_ref_marker($refs, $commit);
2212
2213                 if ($alternate) {
2214                         print "<tr class=\"dark\">\n";
2215                 } else {
2216                         print "<tr class=\"light\">\n";
2217                 }
2218                 $alternate ^= 1;
2219                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2220                       # shortlog uses      chop_str($co{'author_name'}, 10)
2221                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2222                       "<td>";
2223                 # originally git_history used chop_str($co{'title'}, 50)
2224                 print format_subject_html($co{'title'}, $co{'title_short'},
2225                                           href(action=>"commit", hash=>$commit), $ref);
2226                 print "</td>\n" .
2227                       "<td class=\"link\">" .
2228                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2229                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2230
2231                 if ($ftype eq 'blob') {
2232                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2233                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2234                         if (defined $blob_current && defined $blob_parent &&
2235                                         $blob_current ne $blob_parent) {
2236                                 print " | " .
2237                                         $cgi->a({-href => href(action=>"blobdiff",
2238                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2239                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2240                                                                file_name=>$file_name)},
2241                                                 "diff to current");
2242                         }
2243                 }
2244                 print "</td>\n" .
2245                       "</tr>\n";
2246         }
2247         if (defined $extra) {
2248                 print "<tr>\n" .
2249                       "<td colspan=\"4\">$extra</td>\n" .
2250                       "</tr>\n";
2251         }
2252         print "</table>\n";
2253 }
2254
2255 sub git_tags_body {
2256         # uses global variable $project
2257         my ($taglist, $from, $to, $extra) = @_;
2258         $from = 0 unless defined $from;
2259         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2260
2261         print "<table class=\"tags\" cellspacing=\"0\">\n";
2262         my $alternate = 1;
2263         for (my $i = $from; $i <= $to; $i++) {
2264                 my $entry = $taglist->[$i];
2265                 my %tag = %$entry;
2266                 my $comment_lines = $tag{'comment'};
2267                 my $comment = shift @$comment_lines;
2268                 my $comment_short;
2269                 if (defined $comment) {
2270                         $comment_short = chop_str($comment, 30, 5);
2271                 }
2272                 if ($alternate) {
2273                         print "<tr class=\"dark\">\n";
2274                 } else {
2275                         print "<tr class=\"light\">\n";
2276                 }
2277                 $alternate ^= 1;
2278                 print "<td><i>$tag{'age'}</i></td>\n" .
2279                       "<td>" .
2280                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2281                                -class => "list name"}, esc_html($tag{'name'})) .
2282                       "</td>\n" .
2283                       "<td>";
2284                 if (defined $comment) {
2285                         print format_subject_html($comment, $comment_short,
2286                                                   href(action=>"tag", hash=>$tag{'id'}));
2287                 }
2288                 print "</td>\n" .
2289                       "<td class=\"selflink\">";
2290                 if ($tag{'type'} eq "tag") {
2291                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2292                 } else {
2293                         print "&nbsp;";
2294                 }
2295                 print "</td>\n" .
2296                       "<td class=\"link\">" . " | " .
2297                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2298                 if ($tag{'reftype'} eq "commit") {
2299                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2300                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2301                 } elsif ($tag{'reftype'} eq "blob") {
2302                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2303                 }
2304                 print "</td>\n" .
2305                       "</tr>";
2306         }
2307         if (defined $extra) {
2308                 print "<tr>\n" .
2309                       "<td colspan=\"5\">$extra</td>\n" .
2310                       "</tr>\n";
2311         }
2312         print "</table>\n";
2313 }
2314
2315 sub git_heads_body {
2316         # uses global variable $project
2317         my ($headlist, $head, $from, $to, $extra) = @_;
2318         $from = 0 unless defined $from;
2319         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2320
2321         print "<table class=\"heads\" cellspacing=\"0\">\n";
2322         my $alternate = 1;
2323         for (my $i = $from; $i <= $to; $i++) {
2324                 my $entry = $headlist->[$i];
2325                 my %tag = %$entry;
2326                 my $curr = $tag{'id'} eq $head;
2327                 if ($alternate) {
2328                         print "<tr class=\"dark\">\n";
2329                 } else {
2330                         print "<tr class=\"light\">\n";
2331                 }
2332                 $alternate ^= 1;
2333                 print "<td><i>$tag{'age'}</i></td>\n" .
2334                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2335                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2336                                -class => "list name"},esc_html($tag{'name'})) .
2337                       "</td>\n" .
2338                       "<td class=\"link\">" .
2339                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2340                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2341                       $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2342                       "</td>\n" .
2343                       "</tr>";
2344         }
2345         if (defined $extra) {
2346                 print "<tr>\n" .
2347                       "<td colspan=\"3\">$extra</td>\n" .
2348                       "</tr>\n";
2349         }
2350         print "</table>\n";
2351 }
2352
2353 ## ======================================================================
2354 ## ======================================================================
2355 ## actions
2356
2357 sub git_project_list {
2358         my $order = $cgi->param('o');
2359         if (defined $order && $order !~ m/project|descr|owner|age/) {
2360                 die_error(undef, "Unknown order parameter");
2361         }
2362
2363         my @list = git_get_projects_list();
2364         my @projects;
2365         if (!@list) {
2366                 die_error(undef, "No projects found");
2367         }
2368         foreach my $pr (@list) {
2369                 my (@aa) = git_get_last_activity($pr->{'path'});
2370                 unless (@aa) {
2371                         next;
2372                 }
2373                 ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2374                 if (!defined $pr->{'descr'}) {
2375                         my $descr = git_get_project_description($pr->{'path'}) || "";
2376                         $pr->{'descr'} = chop_str($descr, 25, 5);
2377                 }
2378                 if (!defined $pr->{'owner'}) {
2379                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2380                 }
2381                 push @projects, $pr;
2382         }
2383
2384         git_header_html();
2385         if (-f $home_text) {
2386                 print "<div class=\"index_include\">\n";
2387                 open (my $fd, $home_text);
2388                 print <$fd>;
2389                 close $fd;
2390                 print "</div>\n";
2391         }
2392         print "<table class=\"project_list\">\n" .
2393               "<tr>\n";
2394         $order ||= "project";
2395         if ($order eq "project") {
2396                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2397                 print "<th>Project</th>\n";
2398         } else {
2399                 print "<th>" .
2400                       $cgi->a({-href => href(project=>undef, order=>'project'),
2401                                -class => "header"}, "Project") .
2402                       "</th>\n";
2403         }
2404         if ($order eq "descr") {
2405                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2406                 print "<th>Description</th>\n";
2407         } else {
2408                 print "<th>" .
2409                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2410                                -class => "header"}, "Description") .
2411                       "</th>\n";
2412         }
2413         if ($order eq "owner") {
2414                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2415                 print "<th>Owner</th>\n";
2416         } else {
2417                 print "<th>" .
2418                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2419                                -class => "header"}, "Owner") .
2420                       "</th>\n";
2421         }
2422         if ($order eq "age") {
2423                 @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2424                 print "<th>Last Change</th>\n";
2425         } else {
2426                 print "<th>" .
2427                       $cgi->a({-href => href(project=>undef, order=>'age'),
2428                                -class => "header"}, "Last Change") .
2429                       "</th>\n";
2430         }
2431         print "<th></th>\n" .
2432               "</tr>\n";
2433         my $alternate = 1;
2434         foreach my $pr (@projects) {
2435                 if ($alternate) {
2436                         print "<tr class=\"dark\">\n";
2437                 } else {
2438                         print "<tr class=\"light\">\n";
2439                 }
2440                 $alternate ^= 1;
2441                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2442                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2443                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2444                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2445                 print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2446                       $pr->{'age_string'} . "</td>\n" .
2447                       "<td class=\"link\">" .
2448                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2449                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2450                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2451                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2452                       "</td>\n" .
2453                       "</tr>\n";
2454         }
2455         print "</table>\n";
2456         git_footer_html();
2457 }
2458
2459 sub git_project_index {
2460         my @projects = git_get_projects_list();
2461
2462         print $cgi->header(
2463                 -type => 'text/plain',
2464                 -charset => 'utf-8',
2465                 -content_disposition => 'inline; filename="index.aux"');
2466
2467         foreach my $pr (@projects) {
2468                 if (!exists $pr->{'owner'}) {
2469                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2470                 }
2471
2472                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2473                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2474                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2475                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2476                 $path  =~ s/ /\+/g;
2477                 $owner =~ s/ /\+/g;
2478
2479                 print "$path $owner\n";
2480         }
2481 }
2482
2483 sub git_summary {
2484         my $descr = git_get_project_description($project) || "none";
2485         my $head = git_get_head_hash($project);
2486         my %co = parse_commit($head);
2487         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2488
2489         my $owner = git_get_project_owner($project);
2490
2491         my ($reflist, $refs) = git_get_refs_list();
2492
2493         my @taglist;
2494         my @headlist;
2495         foreach my $ref (@$reflist) {
2496                 if ($ref->{'name'} =~ s!^heads/!!) {
2497                         push @headlist, $ref;
2498                 } else {
2499                         $ref->{'name'} =~ s!^tags/!!;
2500                         push @taglist, $ref;
2501                 }
2502         }
2503
2504         git_header_html();
2505         git_print_page_nav('summary','', $head);
2506
2507         print "<div class=\"title\">&nbsp;</div>\n";
2508         print "<table cellspacing=\"0\">\n" .
2509               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2510               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2511               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2512         # use per project git URL list in $projectroot/$project/cloneurl
2513         # or make project git URL from git base URL and project name
2514         my $url_tag = "URL";
2515         my @url_list = git_get_project_url_list($project);
2516         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2517         foreach my $git_url (@url_list) {
2518                 next unless $git_url;
2519                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2520                 $url_tag = "";
2521         }
2522         print "</table>\n";
2523
2524         if (-s "$projectroot/$project/README.html") {
2525                 if (open my $fd, "$projectroot/$project/README.html") {
2526                         print "<div class=\"title\">readme</div>\n";
2527                         print $_ while (<$fd>);
2528                         close $fd;
2529                 }
2530         }
2531
2532         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2533                 git_get_head_hash($project)
2534                 or die_error(undef, "Open git-rev-list failed");
2535         my @revlist = map { chomp; $_ } <$fd>;
2536         close $fd;
2537         git_print_header_div('shortlog');
2538         git_shortlog_body(\@revlist, 0, 15, $refs,
2539                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2540
2541         if (@taglist) {
2542                 git_print_header_div('tags');
2543                 git_tags_body(\@taglist, 0, 15,
2544                               $cgi->a({-href => href(action=>"tags")}, "..."));
2545         }
2546
2547         if (@headlist) {
2548                 git_print_header_div('heads');
2549                 git_heads_body(\@headlist, $head, 0, 15,
2550                                $cgi->a({-href => href(action=>"heads")}, "..."));
2551         }
2552
2553         git_footer_html();
2554 }
2555
2556 sub git_tag {
2557         my $head = git_get_head_hash($project);
2558         git_header_html();
2559         git_print_page_nav('','', $head,undef,$head);
2560         my %tag = parse_tag($hash);
2561         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2562         print "<div class=\"title_text\">\n" .
2563               "<table cellspacing=\"0\">\n" .
2564               "<tr>\n" .
2565               "<td>object</td>\n" .
2566               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2567                                $tag{'object'}) . "</td>\n" .
2568               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2569                                               $tag{'type'}) . "</td>\n" .
2570               "</tr>\n";
2571         if (defined($tag{'author'})) {
2572                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2573                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2574                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2575                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2576                         "</td></tr>\n";
2577         }
2578         print "</table>\n\n" .
2579               "</div>\n";
2580         print "<div class=\"page_body\">";
2581         my $comment = $tag{'comment'};
2582         foreach my $line (@$comment) {
2583                 print esc_html($line) . "<br/>\n";
2584         }
2585         print "</div>\n";
2586         git_footer_html();
2587 }
2588
2589 sub git_blame2 {
2590         my $fd;
2591         my $ftype;
2592
2593         my ($have_blame) = gitweb_check_feature('blame');
2594         if (!$have_blame) {
2595                 die_error('403 Permission denied', "Permission denied");
2596         }
2597         die_error('404 Not Found', "File name not defined") if (!$file_name);
2598         $hash_base ||= git_get_head_hash($project);
2599         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2600         my %co = parse_commit($hash_base)
2601                 or die_error(undef, "Reading commit failed");
2602         if (!defined $hash) {
2603                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2604                         or die_error(undef, "Error looking up file");
2605         }
2606         $ftype = git_get_type($hash);
2607         if ($ftype !~ "blob") {
2608                 die_error("400 Bad Request", "Object is not a blob");
2609         }
2610         open ($fd, "-|", git_cmd(), "blame", '-l', '--', $file_name, $hash_base)
2611                 or die_error(undef, "Open git-blame failed");
2612         git_header_html();
2613         my $formats_nav =
2614                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2615                         "blob") .
2616                 " | " .
2617                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2618                         "history") .
2619                 " | " .
2620                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2621                         "HEAD");
2622         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2623         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2624         git_print_page_path($file_name, $ftype, $hash_base);
2625         my @rev_color = (qw(light2 dark2));
2626         my $num_colors = scalar(@rev_color);
2627         my $current_color = 0;
2628         my $last_rev;
2629         print <<HTML;
2630 <div class="page_body">
2631 <table class="blame">
2632 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2633 HTML
2634         while (<$fd>) {
2635                 my ($full_rev, $author, $date, $lineno, $data) =
2636                         /^([0-9a-f]{40}).*?\s\((.*?)\s+([-\d]+ [:\d]+ [-+\d]+)\s+(\d+)\)\s(.*)/;
2637                 my $rev = substr($full_rev, 0, 8);
2638                 my $print_c8 = 0;
2639
2640                 if (!defined $last_rev) {
2641                         $last_rev = $full_rev;
2642                         $print_c8 = 1;
2643                 } elsif ($last_rev ne $full_rev) {
2644                         $last_rev = $full_rev;
2645                         $current_color = ++$current_color % $num_colors;
2646                         $print_c8 = 1;
2647                 }
2648                 print "<tr class=\"$rev_color[$current_color]\">\n";
2649                 print "<td class=\"sha1\"";
2650                 if ($print_c8 == 1) {
2651                         print " title=\"$author, $date\"";
2652                 }
2653                 print ">";
2654                 if ($print_c8 == 1) {
2655                         print $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2656                                       esc_html($rev));
2657                 }
2658                 print "</td>\n";
2659                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2660                       esc_html($lineno) . "</a></td>\n";
2661                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2662                 print "</tr>\n";
2663         }
2664         print "</table>\n";
2665         print "</div>";
2666         close $fd
2667                 or print "Reading blob failed\n";
2668         git_footer_html();
2669 }
2670
2671 sub git_blame {
2672         my $fd;
2673
2674         my ($have_blame) = gitweb_check_feature('blame');
2675         if (!$have_blame) {
2676                 die_error('403 Permission denied', "Permission denied");
2677         }
2678         die_error('404 Not Found', "File name not defined") if (!$file_name);
2679         $hash_base ||= git_get_head_hash($project);
2680         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2681         my %co = parse_commit($hash_base)
2682                 or die_error(undef, "Reading commit failed");
2683         if (!defined $hash) {
2684                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2685                         or die_error(undef, "Error lookup file");
2686         }
2687         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2688                 or die_error(undef, "Open git-annotate failed");
2689         git_header_html();
2690         my $formats_nav =
2691                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2692                         "blob") .
2693                 " | " .
2694                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2695                         "history") .
2696                 " | " .
2697                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2698                         "HEAD");
2699         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2700         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2701         git_print_page_path($file_name, 'blob', $hash_base);
2702         print "<div class=\"page_body\">\n";
2703         print <<HTML;
2704 <table class="blame">
2705   <tr>
2706     <th>Commit</th>
2707     <th>Age</th>
2708     <th>Author</th>
2709     <th>Line</th>
2710     <th>Data</th>
2711   </tr>
2712 HTML
2713         my @line_class = (qw(light dark));
2714         my $line_class_len = scalar (@line_class);
2715         my $line_class_num = $#line_class;
2716         while (my $line = <$fd>) {
2717                 my $long_rev;
2718                 my $short_rev;
2719                 my $author;
2720                 my $time;
2721                 my $lineno;
2722                 my $data;
2723                 my $age;
2724                 my $age_str;
2725                 my $age_class;
2726
2727                 chomp $line;
2728                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2729
2730                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2731                         $long_rev = $1;
2732                         $author   = $2;
2733                         $time     = $3;
2734                         $lineno   = $4;
2735                         $data     = $5;
2736                 } else {
2737                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2738                         next;
2739                 }
2740                 $short_rev  = substr ($long_rev, 0, 8);
2741                 $age        = time () - $time;
2742                 $age_str    = age_string ($age);
2743                 $age_str    =~ s/ /&nbsp;/g;
2744                 $age_class  = age_class($age);
2745                 $author     = esc_html ($author);
2746                 $author     =~ s/ /&nbsp;/g;
2747
2748                 $data = untabify($data);
2749                 $data = esc_html ($data);
2750
2751                 print <<HTML;
2752   <tr class="$line_class[$line_class_num]">
2753     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2754     <td class="$age_class">$age_str</td>
2755     <td>$author</td>
2756     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2757     <td class="pre">$data</td>
2758   </tr>
2759 HTML
2760         } # while (my $line = <$fd>)
2761         print "</table>\n\n";
2762         close $fd
2763                 or print "Reading blob failed.\n";
2764         print "</div>";
2765         git_footer_html();
2766 }
2767
2768 sub git_tags {
2769         my $head = git_get_head_hash($project);
2770         git_header_html();
2771         git_print_page_nav('','', $head,undef,$head);
2772         git_print_header_div('summary', $project);
2773
2774         my ($taglist) = git_get_refs_list("tags");
2775         if (@$taglist) {
2776                 git_tags_body($taglist);
2777         }
2778         git_footer_html();
2779 }
2780
2781 sub git_heads {
2782         my $head = git_get_head_hash($project);
2783         git_header_html();
2784         git_print_page_nav('','', $head,undef,$head);
2785         git_print_header_div('summary', $project);
2786
2787         my ($headlist) = git_get_refs_list("heads");
2788         if (@$headlist) {
2789                 git_heads_body($headlist, $head);
2790         }
2791         git_footer_html();
2792 }
2793
2794 sub git_blob_plain {
2795         my $expires;
2796
2797         if (!defined $hash) {
2798                 if (defined $file_name) {
2799                         my $base = $hash_base || git_get_head_hash($project);
2800                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2801                                 or die_error(undef, "Error lookup file");
2802                 } else {
2803                         die_error(undef, "No file name defined");
2804                 }
2805         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2806                 # blobs defined by non-textual hash id's can be cached
2807                 $expires = "+1d";
2808         }
2809
2810         my $type = shift;
2811         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2812                 or die_error(undef, "Couldn't cat $file_name, $hash");
2813
2814         $type ||= blob_mimetype($fd, $file_name);
2815
2816         # save as filename, even when no $file_name is given
2817         my $save_as = "$hash";
2818         if (defined $file_name) {
2819                 $save_as = $file_name;
2820         } elsif ($type =~ m/^text\//) {
2821                 $save_as .= '.txt';
2822         }
2823
2824         print $cgi->header(
2825                 -type => "$type",
2826                 -expires=>$expires,
2827                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
2828         undef $/;
2829         binmode STDOUT, ':raw';
2830         print <$fd>;
2831         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2832         $/ = "\n";
2833         close $fd;
2834 }
2835
2836 sub git_blob {
2837         my $expires;
2838
2839         if (!defined $hash) {
2840                 if (defined $file_name) {
2841                         my $base = $hash_base || git_get_head_hash($project);
2842                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2843                                 or die_error(undef, "Error lookup file");
2844                 } else {
2845                         die_error(undef, "No file name defined");
2846                 }
2847         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2848                 # blobs defined by non-textual hash id's can be cached
2849                 $expires = "+1d";
2850         }
2851
2852         my ($have_blame) = gitweb_check_feature('blame');
2853         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2854                 or die_error(undef, "Couldn't cat $file_name, $hash");
2855         my $mimetype = blob_mimetype($fd, $file_name);
2856         if ($mimetype !~ m/^text\//) {
2857                 close $fd;
2858                 return git_blob_plain($mimetype);
2859         }
2860         git_header_html(undef, $expires);
2861         my $formats_nav = '';
2862         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2863                 if (defined $file_name) {
2864                         if ($have_blame) {
2865                                 $formats_nav .=
2866                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2867                                                                hash=>$hash, file_name=>$file_name)},
2868                                                 "blame") .
2869                                         " | ";
2870                         }
2871                         $formats_nav .=
2872                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2873                                                        hash=>$hash, file_name=>$file_name)},
2874                                         "history") .
2875                                 " | " .
2876                                 $cgi->a({-href => href(action=>"blob_plain",
2877                                                        hash=>$hash, file_name=>$file_name)},
2878                                         "raw") .
2879                                 " | " .
2880                                 $cgi->a({-href => href(action=>"blob",
2881                                                        hash_base=>"HEAD", file_name=>$file_name)},
2882                                         "HEAD");
2883                 } else {
2884                         $formats_nav .=
2885                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2886                 }
2887                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2888                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2889         } else {
2890                 print "<div class=\"page_nav\">\n" .
2891                       "<br/><br/></div>\n" .
2892                       "<div class=\"title\">$hash</div>\n";
2893         }
2894         git_print_page_path($file_name, "blob", $hash_base);
2895         print "<div class=\"page_body\">\n";
2896         my $nr;
2897         while (my $line = <$fd>) {
2898                 chomp $line;
2899                 $nr++;
2900                 $line = untabify($line);
2901                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2902                        $nr, $nr, $nr, esc_html($line);
2903         }
2904         close $fd
2905                 or print "Reading blob failed.\n";
2906         print "</div>";
2907         git_footer_html();
2908 }
2909
2910 sub git_tree {
2911         my $have_snapshot = gitweb_have_snapshot();
2912
2913         if (!defined $hash_base) {
2914                 $hash_base = "HEAD";
2915         }
2916         if (!defined $hash) {
2917                 if (defined $file_name) {
2918                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2919                 } else {
2920                         $hash = $hash_base;
2921                 }
2922         }
2923         $/ = "\0";
2924         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2925                 or die_error(undef, "Open git-ls-tree failed");
2926         my @entries = map { chomp; $_ } <$fd>;
2927         close $fd or die_error(undef, "Reading tree failed");
2928         $/ = "\n";
2929
2930         my $refs = git_get_references();
2931         my $ref = format_ref_marker($refs, $hash_base);
2932         git_header_html();
2933         my $basedir = '';
2934         my ($have_blame) = gitweb_check_feature('blame');
2935         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2936                 my @views_nav = ();
2937                 if (defined $file_name) {
2938                         push @views_nav,
2939                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2940                                                        hash=>$hash, file_name=>$file_name)},
2941                                         "history"),
2942                                 $cgi->a({-href => href(action=>"tree",
2943                                                        hash_base=>"HEAD", file_name=>$file_name)},
2944                                         "HEAD"),
2945                 }
2946                 if ($have_snapshot) {
2947                         # FIXME: Should be available when we have no hash base as well.
2948                         push @views_nav,
2949                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2950                                         "snapshot");
2951                 }
2952                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2953                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2954         } else {
2955                 undef $hash_base;
2956                 print "<div class=\"page_nav\">\n";
2957                 print "<br/><br/></div>\n";
2958                 print "<div class=\"title\">$hash</div>\n";
2959         }
2960         if (defined $file_name) {
2961                 $basedir = $file_name;
2962                 if ($basedir ne '' && substr($basedir, -1) ne '/') {
2963                         $basedir .= '/';
2964                 }
2965         }
2966         git_print_page_path($file_name, 'tree', $hash_base);
2967         print "<div class=\"page_body\">\n";
2968         print "<table cellspacing=\"0\">\n";
2969         my $alternate = 1;
2970         # '..' (top directory) link if possible
2971         if (defined $hash_base &&
2972             defined $file_name && $file_name =~ m![^/]+$!) {
2973                 if ($alternate) {
2974                         print "<tr class=\"dark\">\n";
2975                 } else {
2976                         print "<tr class=\"light\">\n";
2977                 }
2978                 $alternate ^= 1;
2979
2980                 my $up = $file_name;
2981                 $up =~ s!/?[^/]+$!!;
2982                 undef $up unless $up;
2983                 # based on git_print_tree_entry
2984                 print '<td class="mode">' . mode_str('040000') . "</td>\n";
2985                 print '<td class="list">';
2986                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
2987                                              file_name=>$up)},
2988                               "..");
2989                 print "</td>\n";
2990                 print "<td class=\"link\"></td>\n";
2991
2992                 print "</tr>\n";
2993         }
2994         foreach my $line (@entries) {
2995                 my %t = parse_ls_tree_line($line, -z => 1);
2996
2997                 if ($alternate) {
2998                         print "<tr class=\"dark\">\n";
2999                 } else {
3000                         print "<tr class=\"light\">\n";
3001                 }
3002                 $alternate ^= 1;
3003
3004                 git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3005
3006                 print "</tr>\n";
3007         }
3008         print "</table>\n" .
3009               "</div>";
3010         git_footer_html();
3011 }
3012
3013 sub git_snapshot {
3014         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3015         my $have_snapshot = (defined $ctype && defined $suffix);
3016         if (!$have_snapshot) {
3017                 die_error('403 Permission denied', "Permission denied");
3018         }
3019
3020         if (!defined $hash) {
3021                 $hash = git_get_head_hash($project);
3022         }
3023
3024         my $filename = basename($project) . "-$hash.tar.$suffix";
3025
3026         print $cgi->header(
3027                 -type => 'application/x-tar',
3028                 -content_encoding => $ctype,
3029                 -content_disposition => 'inline; filename="' . "$filename" . '"',
3030                 -status => '200 OK');
3031
3032         my $git = git_cmd_str();
3033         my $name = $project;
3034         $name =~ s/\047/\047\\\047\047/g;
3035         open my $fd, "-|",
3036         "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3037                 or die_error(undef, "Execute git-tar-tree failed.");
3038         binmode STDOUT, ':raw';
3039         print <$fd>;
3040         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3041         close $fd;
3042
3043 }
3044
3045 sub git_log {
3046         my $head = git_get_head_hash($project);
3047         if (!defined $hash) {
3048                 $hash = $head;
3049         }
3050         if (!defined $page) {
3051                 $page = 0;
3052         }
3053         my $refs = git_get_references();
3054
3055         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3056         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3057                 or die_error(undef, "Open git-rev-list failed");
3058         my @revlist = map { chomp; $_ } <$fd>;
3059         close $fd;
3060
3061         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3062
3063         git_header_html();
3064         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3065
3066         if (!@revlist) {
3067                 my %co = parse_commit($hash);
3068
3069                 git_print_header_div('summary', $project);
3070                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3071         }
3072         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3073                 my $commit = $revlist[$i];
3074                 my $ref = format_ref_marker($refs, $commit);
3075                 my %co = parse_commit($commit);
3076                 next if !%co;
3077                 my %ad = parse_date($co{'author_epoch'});
3078                 git_print_header_div('commit',
3079                                "<span class=\"age\">$co{'age_string'}</span>" .
3080                                esc_html($co{'title'}) . $ref,
3081                                $commit);
3082                 print "<div class=\"title_text\">\n" .
3083                       "<div class=\"log_link\">\n" .
3084                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3085                       " | " .
3086                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3087                       " | " .
3088                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3089                       "<br/>\n" .
3090                       "</div>\n" .
3091                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3092                       "</div>\n";
3093
3094                 print "<div class=\"log_body\">\n";
3095                 git_print_log($co{'comment'}, -final_empty_line=> 1);
3096                 print "</div>\n";
3097         }
3098         git_footer_html();
3099 }
3100
3101 sub git_commit {
3102         my %co = parse_commit($hash);
3103         if (!%co) {
3104                 die_error(undef, "Unknown commit object");
3105         }
3106         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3107         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3108
3109         my $parent = $co{'parent'};
3110         if (!defined $parent) {
3111                 $parent = "--root";
3112         }
3113         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
3114                 or die_error(undef, "Open git-diff-tree failed");
3115         my @difftree = map { chomp; $_ } <$fd>;
3116         close $fd or die_error(undef, "Reading git-diff-tree failed");
3117
3118         # filter out commit ID output
3119         @difftree = grep(!/^[0-9a-fA-F]{40}$/, @difftree);
3120
3121         # non-textual hash id's can be cached
3122         my $expires;
3123         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3124                 $expires = "+1d";
3125         }
3126         my $refs = git_get_references();
3127         my $ref = format_ref_marker($refs, $co{'id'});
3128
3129         my $have_snapshot = gitweb_have_snapshot();
3130
3131         my @views_nav = ();
3132         if (defined $file_name && defined $co{'parent'}) {
3133                 push @views_nav,
3134                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3135                                 "blame");
3136         }
3137         git_header_html(undef, $expires);
3138         git_print_page_nav('commit', '',
3139                            $hash, $co{'tree'}, $hash,
3140                            join (' | ', @views_nav));
3141
3142         if (defined $co{'parent'}) {
3143                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3144         } else {
3145                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3146         }
3147         print "<div class=\"title_text\">\n" .
3148               "<table cellspacing=\"0\">\n";
3149         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3150               "<tr>" .
3151               "<td></td><td> $ad{'rfc2822'}";
3152         if ($ad{'hour_local'} < 6) {
3153                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3154                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3155         } else {
3156                 printf(" (%02d:%02d %s)",
3157                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3158         }
3159         print "</td>" .
3160               "</tr>\n";
3161         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3162         print "<tr><td></td><td> $cd{'rfc2822'}" .
3163               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3164               "</td></tr>\n";
3165         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3166         print "<tr>" .
3167               "<td>tree</td>" .
3168               "<td class=\"sha1\">" .
3169               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3170                        class => "list"}, $co{'tree'}) .
3171               "</td>" .
3172               "<td class=\"link\">" .
3173               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3174                       "tree");
3175         if ($have_snapshot) {
3176                 print " | " .
3177                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3178         }
3179         print "</td>" .
3180               "</tr>\n";
3181         my $parents = $co{'parents'};
3182         foreach my $par (@$parents) {
3183                 print "<tr>" .
3184                       "<td>parent</td>" .
3185                       "<td class=\"sha1\">" .
3186                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3187                                class => "list"}, $par) .
3188                       "</td>" .
3189                       "<td class=\"link\">" .
3190                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3191                       " | " .
3192                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3193                       "</td>" .
3194                       "</tr>\n";
3195         }
3196         print "</table>".
3197               "</div>\n";
3198
3199         print "<div class=\"page_body\">\n";
3200         git_print_log($co{'comment'});
3201         print "</div>\n";
3202
3203         git_difftree_body(\@difftree, $hash, $parent);
3204
3205         git_footer_html();
3206 }
3207
3208 sub git_blobdiff {
3209         my $format = shift || 'html';
3210
3211         my $fd;
3212         my @difftree;
3213         my %diffinfo;
3214         my $expires;
3215
3216         # preparing $fd and %diffinfo for git_patchset_body
3217         # new style URI
3218         if (defined $hash_base && defined $hash_parent_base) {
3219                 if (defined $file_name) {
3220                         # read raw output
3221                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3222                                 "--", $file_name
3223                                 or die_error(undef, "Open git-diff-tree failed");
3224                         @difftree = map { chomp; $_ } <$fd>;
3225                         close $fd
3226                                 or die_error(undef, "Reading git-diff-tree failed");
3227                         @difftree
3228                                 or die_error('404 Not Found', "Blob diff not found");
3229
3230                 } elsif (defined $hash &&
3231                          $hash =~ /[0-9a-fA-F]{40}/) {
3232                         # try to find filename from $hash
3233
3234                         # read filtered raw output
3235                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3236                                 or die_error(undef, "Open git-diff-tree failed");
3237                         @difftree =
3238                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3239                                 # $hash == to_id
3240                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3241                                 map { chomp; $_ } <$fd>;
3242                         close $fd
3243                                 or die_error(undef, "Reading git-diff-tree failed");
3244                         @difftree
3245                                 or die_error('404 Not Found', "Blob diff not found");
3246
3247                 } else {
3248                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3249                 }
3250
3251                 if (@difftree > 1) {
3252                         die_error('404 Not Found', "Ambiguous blob diff specification");
3253                 }
3254
3255                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3256                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3257                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3258
3259                 $hash_parent ||= $diffinfo{'from_id'};
3260                 $hash        ||= $diffinfo{'to_id'};
3261
3262                 # non-textual hash id's can be cached
3263                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3264                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3265                         $expires = '+1d';
3266                 }
3267
3268                 # open patch output
3269                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3270                         '-p', $hash_parent_base, $hash_base,
3271                         "--", $file_name
3272                         or die_error(undef, "Open git-diff-tree failed");
3273         }
3274
3275         # old/legacy style URI
3276         if (!%diffinfo && # if new style URI failed
3277             defined $hash && defined $hash_parent) {
3278                 # fake git-diff-tree raw output
3279                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3280                 $diffinfo{'from_id'} = $hash_parent;
3281                 $diffinfo{'to_id'}   = $hash;
3282                 if (defined $file_name) {
3283                         if (defined $file_parent) {
3284                                 $diffinfo{'status'} = '2';
3285                                 $diffinfo{'from_file'} = $file_parent;
3286                                 $diffinfo{'to_file'}   = $file_name;
3287                         } else { # assume not renamed
3288                                 $diffinfo{'status'} = '1';
3289                                 $diffinfo{'from_file'} = $file_name;
3290                                 $diffinfo{'to_file'}   = $file_name;
3291                         }
3292                 } else { # no filename given
3293                         $diffinfo{'status'} = '2';
3294                         $diffinfo{'from_file'} = $hash_parent;
3295                         $diffinfo{'to_file'}   = $hash;
3296                 }
3297
3298                 # non-textual hash id's can be cached
3299                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3300                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3301                         $expires = '+1d';
3302                 }
3303
3304                 # open patch output
3305                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3306                         or die_error(undef, "Open git-diff failed");
3307         } else  {
3308                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3309                         unless %diffinfo;
3310         }
3311
3312         # header
3313         if ($format eq 'html') {
3314                 my $formats_nav =
3315                         $cgi->a({-href => href(action=>"blobdiff_plain",
3316                                                hash=>$hash, hash_parent=>$hash_parent,
3317                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3318                                                file_name=>$file_name, file_parent=>$file_parent)},
3319                                 "raw");
3320                 git_header_html(undef, $expires);
3321                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3322                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3323                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3324                 } else {
3325                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3326                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3327                 }
3328                 if (defined $file_name) {
3329                         git_print_page_path($file_name, "blob", $hash_base);
3330                 } else {
3331                         print "<div class=\"page_path\"></div>\n";
3332                 }
3333
3334         } elsif ($format eq 'plain') {
3335                 print $cgi->header(
3336                         -type => 'text/plain',
3337                         -charset => 'utf-8',
3338                         -expires => $expires,
3339                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3340
3341                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3342
3343         } else {
3344                 die_error(undef, "Unknown blobdiff format");
3345         }
3346
3347         # patch
3348         if ($format eq 'html') {
3349                 print "<div class=\"page_body\">\n";
3350
3351                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3352                 close $fd;
3353
3354                 print "</div>\n"; # class="page_body"
3355                 git_footer_html();
3356
3357         } else {
3358                 while (my $line = <$fd>) {
3359                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3360                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3361
3362                         print $line;
3363
3364                         last if $line =~ m!^\+\+\+!;
3365                 }
3366                 local $/ = undef;
3367                 print <$fd>;
3368                 close $fd;
3369         }
3370 }
3371
3372 sub git_blobdiff_plain {
3373         git_blobdiff('plain');
3374 }
3375
3376 sub git_commitdiff {
3377         my $format = shift || 'html';
3378         my %co = parse_commit($hash);
3379         if (!%co) {
3380                 die_error(undef, "Unknown commit object");
3381         }
3382         if (!defined $hash_parent) {
3383                 $hash_parent = $co{'parent'} || '--root';
3384         }
3385
3386         # read commitdiff
3387         my $fd;
3388         my @difftree;
3389         if ($format eq 'html') {
3390                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3391                         "--patch-with-raw", "--full-index", $hash_parent, $hash
3392                         or die_error(undef, "Open git-diff-tree failed");
3393
3394                 while (chomp(my $line = <$fd>)) {
3395                         # empty line ends raw part of diff-tree output
3396                         last unless $line;
3397                         # filter out commit ID output
3398                         push @difftree, $line
3399                                 unless $line =~ m/^[0-9a-fA-F]{40}$/;
3400                 }
3401
3402         } elsif ($format eq 'plain') {
3403                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3404                         '-p', $hash_parent, $hash
3405                         or die_error(undef, "Open git-diff-tree failed");
3406
3407         } else {
3408                 die_error(undef, "Unknown commitdiff format");
3409         }
3410
3411         # non-textual hash id's can be cached
3412         my $expires;
3413         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3414                 $expires = "+1d";
3415         }
3416
3417         # write commit message
3418         if ($format eq 'html') {
3419                 my $refs = git_get_references();
3420                 my $ref = format_ref_marker($refs, $co{'id'});
3421                 my $formats_nav =
3422                         $cgi->a({-href => href(action=>"commitdiff_plain",
3423                                                hash=>$hash, hash_parent=>$hash_parent)},
3424                                 "raw");
3425
3426                 git_header_html(undef, $expires);
3427                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3428                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3429                 git_print_authorship(\%co);
3430                 print "<div class=\"page_body\">\n";
3431                 print "<div class=\"log\">\n";
3432                 git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
3433                 print "</div>\n"; # class="log"
3434
3435         } elsif ($format eq 'plain') {
3436                 my $refs = git_get_references("tags");
3437                 my $tagname = git_get_rev_name_tags($hash);
3438                 my $filename = basename($project) . "-$hash.patch";
3439
3440                 print $cgi->header(
3441                         -type => 'text/plain',
3442                         -charset => 'utf-8',
3443                         -expires => $expires,
3444                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3445                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3446                 print <<TEXT;
3447 From: $co{'author'}
3448 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3449 Subject: $co{'title'}
3450 TEXT
3451                 print "X-Git-Tag: $tagname\n" if $tagname;
3452                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3453
3454                 foreach my $line (@{$co{'comment'}}) {
3455                         print "$line\n";
3456                 }
3457                 print "---\n\n";
3458         }
3459
3460         # write patch
3461         if ($format eq 'html') {
3462                 git_difftree_body(\@difftree, $hash, $hash_parent);
3463                 print "<br/>\n";
3464
3465                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3466                 close $fd;
3467                 print "</div>\n"; # class="page_body"
3468                 git_footer_html();
3469
3470         } elsif ($format eq 'plain') {
3471                 local $/ = undef;
3472                 print <$fd>;
3473                 close $fd
3474                         or print "Reading git-diff-tree failed\n";
3475         }
3476 }
3477
3478 sub git_commitdiff_plain {
3479         git_commitdiff('plain');
3480 }
3481
3482 sub git_history {
3483         if (!defined $hash_base) {
3484                 $hash_base = git_get_head_hash($project);
3485         }
3486         if (!defined $page) {
3487                 $page = 0;
3488         }
3489         my $ftype;
3490         my %co = parse_commit($hash_base);
3491         if (!%co) {
3492                 die_error(undef, "Unknown commit object");
3493         }
3494
3495         my $refs = git_get_references();
3496         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3497
3498         if (!defined $hash && defined $file_name) {
3499                 $hash = git_get_hash_by_path($hash_base, $file_name);
3500         }
3501         if (defined $hash) {
3502                 $ftype = git_get_type($hash);
3503         }
3504
3505         open my $fd, "-|",
3506                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3507                         or die_error(undef, "Open git-rev-list-failed");
3508         my @revlist = map { chomp; $_ } <$fd>;
3509         close $fd
3510                 or die_error(undef, "Reading git-rev-list failed");
3511
3512         my $paging_nav = '';
3513         if ($page > 0) {
3514                 $paging_nav .=
3515                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3516                                                file_name=>$file_name)},
3517                                 "first");
3518                 $paging_nav .= " &sdot; " .
3519                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3520                                                file_name=>$file_name, page=>$page-1),
3521                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3522         } else {
3523                 $paging_nav .= "first";
3524                 $paging_nav .= " &sdot; prev";
3525         }
3526         if ($#revlist >= (100 * ($page+1)-1)) {
3527                 $paging_nav .= " &sdot; " .
3528                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3529                                                file_name=>$file_name, page=>$page+1),
3530                                  -accesskey => "n", -title => "Alt-n"}, "next");
3531         } else {
3532                 $paging_nav .= " &sdot; next";
3533         }
3534         my $next_link = '';
3535         if ($#revlist >= (100 * ($page+1)-1)) {
3536                 $next_link =
3537                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3538                                                file_name=>$file_name, page=>$page+1),
3539                                  -title => "Alt-n"}, "next");
3540         }
3541
3542         git_header_html();
3543         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3544         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3545         git_print_page_path($file_name, $ftype, $hash_base);
3546
3547         git_history_body(\@revlist, ($page * 100), $#revlist,
3548                          $refs, $hash_base, $ftype, $next_link);
3549
3550         git_footer_html();
3551 }
3552
3553 sub git_search {
3554         if (!defined $searchtext) {
3555                 die_error(undef, "Text field empty");
3556         }
3557         if (!defined $hash) {
3558                 $hash = git_get_head_hash($project);
3559         }
3560         my %co = parse_commit($hash);
3561         if (!%co) {
3562                 die_error(undef, "Unknown commit object");
3563         }
3564
3565         $searchtype ||= 'commit';
3566         if ($searchtype eq 'pickaxe') {
3567                 # pickaxe may take all resources of your box and run for several minutes
3568                 # with every query - so decide by yourself how public you make this feature
3569                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3570                 if (!$have_pickaxe) {
3571                         die_error('403 Permission denied', "Permission denied");
3572                 }
3573         }
3574
3575         git_header_html();
3576         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3577         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3578
3579         print "<table cellspacing=\"0\">\n";
3580         my $alternate = 1;
3581         if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
3582                 $/ = "\0";
3583                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3584                 while (my $commit_text = <$fd>) {
3585                         if (!grep m/$searchtext/i, $commit_text) {
3586                                 next;
3587                         }
3588                         if ($searchtype eq 'author' && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3589                                 next;
3590                         }
3591                         if ($searchtype eq 'committer' && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3592                                 next;
3593                         }
3594                         my @commit_lines = split "\n", $commit_text;
3595                         my %co = parse_commit(undef, \@commit_lines);
3596                         if (!%co) {
3597                                 next;
3598                         }
3599                         if ($alternate) {
3600                                 print "<tr class=\"dark\">\n";
3601                         } else {
3602                                 print "<tr class=\"light\">\n";
3603                         }
3604                         $alternate ^= 1;
3605                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3606                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3607                               "<td>" .
3608                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3609                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3610                         my $comment = $co{'comment'};
3611                         foreach my $line (@$comment) {
3612                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3613                                         my $lead = esc_html($1) || "";
3614                                         $lead = chop_str($lead, 30, 10);
3615                                         my $match = esc_html($2) || "";
3616                                         my $trail = esc_html($3) || "";
3617                                         $trail = chop_str($trail, 30, 10);
3618                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3619                                         print chop_str($text, 80, 5) . "<br/>\n";
3620                                 }
3621                         }
3622                         print "</td>\n" .
3623                               "<td class=\"link\">" .
3624                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3625                               " | " .
3626                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3627                         print "</td>\n" .
3628                               "</tr>\n";
3629                 }
3630                 close $fd;
3631         }
3632
3633         if ($searchtype eq 'pickaxe') {
3634                 $/ = "\n";
3635                 my $git_command = git_cmd_str();
3636                 open my $fd, "-|", "$git_command rev-list $hash | " .
3637                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3638                 undef %co;
3639                 my @files;
3640                 while (my $line = <$fd>) {
3641                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3642                                 my %set;
3643                                 $set{'file'} = $6;
3644                                 $set{'from_id'} = $3;
3645                                 $set{'to_id'} = $4;
3646                                 $set{'id'} = $set{'to_id'};
3647                                 if ($set{'id'} =~ m/0{40}/) {
3648                                         $set{'id'} = $set{'from_id'};
3649                                 }
3650                                 if ($set{'id'} =~ m/0{40}/) {
3651                                         next;
3652                                 }
3653                                 push @files, \%set;
3654                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3655                                 if (%co) {
3656                                         if ($alternate) {
3657                                                 print "<tr class=\"dark\">\n";
3658                                         } else {
3659                                                 print "<tr class=\"light\">\n";
3660                                         }
3661                                         $alternate ^= 1;
3662                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3663                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3664                                               "<td>" .
3665                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3666                                                       -class => "list subject"},
3667                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3668                                         while (my $setref = shift @files) {
3669                                                 my %set = %$setref;
3670                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3671                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3672                                                               -class => "list"},
3673                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3674                                                       "<br/>\n";
3675                                         }
3676                                         print "</td>\n" .
3677                                               "<td class=\"link\">" .
3678                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3679                                               " | " .
3680                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3681                                         print "</td>\n" .
3682                                               "</tr>\n";
3683                                 }
3684                                 %co = parse_commit($1);
3685                         }
3686                 }
3687                 close $fd;
3688         }
3689         print "</table>\n";
3690         git_footer_html();
3691 }
3692
3693 sub git_search_help {
3694         git_header_html();
3695         git_print_page_nav('','', $hash,$hash,$hash);
3696         print <<EOT;
3697 <dl>
3698 <dt><b>commit</b></dt>
3699 <dd>The commit messages and authorship information will be scanned for the given string.</dd>
3700 <dt><b>author</b></dt>
3701 <dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
3702 <dt><b>committer</b></dt>
3703 <dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
3704 EOT
3705         my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3706         if ($have_pickaxe) {
3707                 print <<EOT;
3708 <dt><b>pickaxe</b></dt>
3709 <dd>All commits that caused the string to appear or disappear from any file (changes that
3710 added, removed or "modified" the string) will be listed. This search can take a while and
3711 takes a lot of strain on the server, so please use it wisely.</dd>
3712 EOT
3713         }
3714         print "</dl>\n";
3715         git_footer_html();
3716 }
3717
3718 sub git_shortlog {
3719         my $head = git_get_head_hash($project);
3720         if (!defined $hash) {
3721                 $hash = $head;
3722         }
3723         if (!defined $page) {
3724                 $page = 0;
3725         }
3726         my $refs = git_get_references();
3727
3728         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3729         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3730                 or die_error(undef, "Open git-rev-list failed");
3731         my @revlist = map { chomp; $_ } <$fd>;
3732         close $fd;
3733
3734         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3735         my $next_link = '';
3736         if ($#revlist >= (100 * ($page+1)-1)) {
3737                 $next_link =
3738                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3739                                  -title => "Alt-n"}, "next");
3740         }
3741
3742
3743         git_header_html();
3744         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3745         git_print_header_div('summary', $project);
3746
3747         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3748
3749         git_footer_html();
3750 }
3751
3752 ## ......................................................................
3753 ## feeds (RSS, OPML)
3754
3755 sub git_rss {
3756         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3757         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3758                 or die_error(undef, "Open git-rev-list failed");
3759         my @revlist = map { chomp; $_ } <$fd>;
3760         close $fd or die_error(undef, "Reading git-rev-list failed");
3761         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3762         print <<XML;
3763 <?xml version="1.0" encoding="utf-8"?>
3764 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3765 <channel>
3766 <title>$project $my_uri $my_url</title>
3767 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3768 <description>$project log</description>
3769 <language>en</language>
3770 XML
3771
3772         for (my $i = 0; $i <= $#revlist; $i++) {
3773                 my $commit = $revlist[$i];
3774                 my %co = parse_commit($commit);
3775                 # we read 150, we always show 30 and the ones more recent than 48 hours
3776                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3777                         last;
3778                 }
3779                 my %cd = parse_date($co{'committer_epoch'});
3780                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3781                         $co{'parent'}, $co{'id'}
3782                         or next;
3783                 my @difftree = map { chomp; $_ } <$fd>;
3784                 close $fd
3785                         or next;
3786                 print "<item>\n" .
3787                       "<title>" .
3788                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3789                       "</title>\n" .
3790                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3791                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3792                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3793                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3794                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3795                       "<content:encoded>" .
3796                       "<![CDATA[\n";
3797                 my $comment = $co{'comment'};
3798                 foreach my $line (@$comment) {
3799                         $line = to_utf8($line);
3800                         print "$line<br/>\n";
3801                 }
3802                 print "<br/>\n";
3803                 foreach my $line (@difftree) {
3804                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3805                                 next;
3806                         }
3807                         my $file = esc_html(unquote($7));
3808                         $file = to_utf8($file);
3809                         print "$file<br/>\n";
3810                 }
3811                 print "]]>\n" .
3812                       "</content:encoded>\n" .
3813                       "</item>\n";
3814         }
3815         print "</channel></rss>";
3816 }
3817
3818 sub git_opml {
3819         my @list = git_get_projects_list();
3820
3821         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3822         print <<XML;
3823 <?xml version="1.0" encoding="utf-8"?>
3824 <opml version="1.0">
3825 <head>
3826   <title>$site_name OPML Export</title>
3827 </head>
3828 <body>
3829 <outline text="git RSS feeds">
3830 XML
3831
3832         foreach my $pr (@list) {
3833                 my %proj = %$pr;
3834                 my $head = git_get_head_hash($proj{'path'});
3835                 if (!defined $head) {
3836                         next;
3837                 }
3838                 $git_dir = "$projectroot/$proj{'path'}";
3839                 my %co = parse_commit($head);
3840                 if (!%co) {
3841                         next;
3842                 }
3843
3844                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3845                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3846                 my $html = "$my_url?p=$proj{'path'};a=summary";
3847                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3848         }
3849         print <<XML;
3850 </outline>
3851 </body>
3852 </opml>
3853 XML
3854 }