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