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