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