gitweb/gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40 # name of your site or organization to appear in page titles
  41 # replace this with something more descriptive for clearer bookmarks
  42 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44 # html text to include at home page
  45 our $home_text = "++GITWEB_HOMETEXT++";
  46
  47 # URI of default stylesheet
  48 our $stylesheet = "++GITWEB_CSS++";
  49 # URI of GIT logo
  50 our $logo = "++GITWEB_LOGO++";
  51 # URI of GIT favicon, assumed to be image/png type
  52 our $favicon = "++GITWEB_FAVICON++";
  53
  54 # source of projects list
  55 our $projects_list = "++GITWEB_LIST++";
  56
  57 # show repository only if this file exists
  58 # (only effective if this variable evaluates to true)
  59 our $export_ok = "++GITWEB_EXPORT_OK++";
  60
  61 # only allow viewing of repositories also shown on the overview page
  62 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  63
  64 # list of git base URLs used for URL to where fetch project from,
  65 # i.e. full URL is "$git_base_url/$project"
  66 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  67
  68 # default blob_plain mimetype and default charset for text/plain blob
  69 our $default_blob_plain_mimetype = 'text/plain';
  70 our $default_text_plain_charset  = undef;
  71
  72 # file to use for guessing MIME types before trying /etc/mime.types
  73 # (relative to the current git repository)
  74 our $mimetypes_file = undef;
  75
  76 # You define site-wide feature defaults here; override them with
  77 # $GITWEB_CONFIG as necessary.
  78 our %feature = (
  79         # feature => {
  80         #       'sub' => feature-sub (subroutine),
  81         #       'override' => allow-override (boolean),
  82         #       'default' => [ default options...] (array reference)}
  83         #
  84         # if feature is overridable (it means that allow-override has true value,
  85         # then feature-sub will be called with default options as parameters;
  86         # return value of feature-sub indicates if to enable specified feature
  87         #
  88         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  89
  90         'blame' => {
  91                 'sub' => \&feature_blame,
  92                 'override' => 0,
  93                 'default' => [0]},
  94
  95         'snapshot' => {
  96                 'sub' => \&feature_snapshot,
  97                 'override' => 0,
  98                 #         => [content-encoding, suffix, program]
  99                 'default' => ['x-gzip', 'gz', 'gzip']},
 100
 101         'pickaxe' => {
 102                 'sub' => \&feature_pickaxe,
 103                 'override' => 0,
 104                 'default' => [1]},
 105 );
 106
 107 sub gitweb_check_feature {
 108         my ($name) = @_;
 109         return unless exists $feature{$name};
 110         my ($sub, $override, @defaults) = (
 111                 $feature{$name}{'sub'},
 112                 $feature{$name}{'override'},
 113                 @{$feature{$name}{'default'}});
 114         if (!$override) { return @defaults; }
 115         return $sub->(@defaults);
 116 }
 117
 118 # To enable system wide have in $GITWEB_CONFIG
 119 # $feature{'blame'}{'default'} = [1];
 120 # To have project specific config enable override in $GITWEB_CONFIG
 121 # $feature{'blame'}{'override'} = 1;
 122 # and in project config gitweb.blame = 0|1;
 123
 124 sub feature_blame {
 125         my ($val) = git_get_project_config('blame', '--bool');
 126
 127         if ($val eq 'true') {
 128                 return 1;
 129         } elsif ($val eq 'false') {
 130                 return 0;
 131         }
 132
 133         return $_[0];
 134 }
 135
 136 # To disable system wide have in $GITWEB_CONFIG
 137 # $feature{'snapshot'}{'default'} = [undef];
 138 # To have project specific config enable override in $GITWEB_CONFIG
 139 # $feature{'blame'}{'override'} = 1;
 140 # and in project config  gitweb.snapshot = none|gzip|bzip2
 141
 142 sub feature_snapshot {
 143         my ($ctype, $suffix, $command) = @_;
 144
 145         my ($val) = git_get_project_config('snapshot');
 146
 147         if ($val eq 'gzip') {
 148                 return ('x-gzip', 'gz', 'gzip');
 149         } elsif ($val eq 'bzip2') {
 150                 return ('x-bzip2', 'bz2', 'bzip2');
 151         } elsif ($val eq 'none') {
 152                 return ();
 153         }
 154
 155         return ($ctype, $suffix, $command);
 156 }
 157
 158 # To enable system wide have in $GITWEB_CONFIG
 159 # $feature{'pickaxe'}{'default'} = [1];
 160 # To have project specific config enable override in $GITWEB_CONFIG
 161 # $feature{'pickaxe'}{'override'} = 1;
 162 # and in project config gitweb.pickaxe = 0|1;
 163
 164 sub feature_pickaxe {
 165         my ($val) = git_get_project_config('pickaxe', '--bool');
 166
 167         if ($val eq 'true') {
 168                 return (1);
 169         } elsif ($val eq 'false') {
 170                 return (0);
 171         }
 172
 173         return ($_[0]);
 174 }
 175
 176 # rename detection options for git-diff and git-diff-tree
 177 # - default is '-M', with the cost proportional to
 178 #   (number of removed files) * (number of new files).
 179 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 180 #   (number of changed files + number of removed files) * (number of new files)
 181 # - even more costly is '-C', '--find-copies-harder' with cost
 182 #   (number of files in the original tree) * (number of new files)
 183 # - one might want to include '-B' option, e.g. '-B', '-M'
 184 our @diff_opts = ('-M'); # taken from git_commit
 185
 186 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 187 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 188
 189 # version of the core git binary
 190 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 191
 192 $projects_list ||= $projectroot;
 193
 194 # ======================================================================
 195 # input validation and dispatch
 196 our $action = $cgi->param('a');
 197 if (defined $action) {
 198         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 199                 die_error(undef, "Invalid action parameter");
 200         }
 201 }
 202
 203 # parameters which are pathnames
 204 our $project = $cgi->param('p');
 205 if (defined $project) {
 206         if (!validate_pathname($project) ||
 207             !(-d "$projectroot/$project") ||
 208             !(-e "$projectroot/$project/HEAD") ||
 209             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 210             ($strict_export && !project_in_list($project))) {
 211                 undef $project;
 212                 die_error(undef, "No such project");
 213         }
 214 }
 215
 216 our $file_name = $cgi->param('f');
 217 if (defined $file_name) {
 218         if (!validate_pathname($file_name)) {
 219                 die_error(undef, "Invalid file parameter");
 220         }
 221 }
 222
 223 our $file_parent = $cgi->param('fp');
 224 if (defined $file_parent) {
 225         if (!validate_pathname($file_parent)) {
 226                 die_error(undef, "Invalid file parent parameter");
 227         }
 228 }
 229
 230 # parameters which are refnames
 231 our $hash = $cgi->param('h');
 232 if (defined $hash) {
 233         if (!validate_refname($hash)) {
 234                 die_error(undef, "Invalid hash parameter");
 235         }
 236 }
 237
 238 our $hash_parent = $cgi->param('hp');
 239 if (defined $hash_parent) {
 240         if (!validate_refname($hash_parent)) {
 241                 die_error(undef, "Invalid hash parent parameter");
 242         }
 243 }
 244
 245 our $hash_base = $cgi->param('hb');
 246 if (defined $hash_base) {
 247         if (!validate_refname($hash_base)) {
 248                 die_error(undef, "Invalid hash base parameter");
 249         }
 250 }
 251
 252 our $hash_parent_base = $cgi->param('hpb');
 253 if (defined $hash_parent_base) {
 254         if (!validate_refname($hash_parent_base)) {
 255                 die_error(undef, "Invalid hash parent base parameter");
 256         }
 257 }
 258
 259 # other parameters
 260 our $page = $cgi->param('pg');
 261 if (defined $page) {
 262         if ($page =~ m/[^0-9]/) {
 263                 die_error(undef, "Invalid page parameter");
 264         }
 265 }
 266
 267 our $searchtext = $cgi->param('s');
 268 if (defined $searchtext) {
 269         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 270                 die_error(undef, "Invalid search parameter");
 271         }
 272         $searchtext = quotemeta $searchtext;
 273 }
 274
 275 # now read PATH_INFO and use it as alternative to parameters
 276 sub evaluate_path_info {
 277         return if defined $project;
 278         my $path_info = $ENV{"PATH_INFO"};
 279         return if !$path_info;
 280         $path_info =~ s,^/+,,;
 281         return if !$path_info;
 282         # find which part of PATH_INFO is project
 283         $project = $path_info;
 284         $project =~ s,/+$,,;
 285         while ($project && !-e "$projectroot/$project/HEAD") {
 286                 $project =~ s,/*[^/]*$,,;
 287         }
 288         # validate project
 289         $project = validate_pathname($project);
 290         if (!$project ||
 291             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 292             ($strict_export && !project_in_list($project))) {
 293                 undef $project;
 294                 return;
 295         }
 296         # do not change any parameters if an action is given using the query string
 297         return if $action;
 298         $path_info =~ s,^$project/*,,;
 299         my ($refname, $pathname) = split(/:/, $path_info, 2);
 300         if (defined $pathname) {
 301                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 302                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 303                 $pathname =~ s,^/+,,;
 304                 if (!$pathname || substr($pathname, -1) eq "/") {
 305                         $action  ||= "tree";
 306                         $pathname =~ s,/$,,;
 307                 } else {
 308                         $action  ||= "blob_plain";
 309                 }
 310                 $hash_base ||= validate_refname($refname);
 311                 $file_name ||= validate_pathname($pathname);
 312         } elsif (defined $refname) {
 313                 # we got "project.git/branch"
 314                 $action ||= "shortlog";
 315                 $hash   ||= validate_refname($refname);
 316         }
 317 }
 318 evaluate_path_info();
 319
 320 # path to the current git repository
 321 our $git_dir;
 322 $git_dir = "$projectroot/$project" if $project;
 323
 324 # dispatch
 325 my %actions = (
 326         "blame" => \&git_blame2,
 327         "blobdiff" => \&git_blobdiff,
 328         "blobdiff_plain" => \&git_blobdiff_plain,
 329         "blob" => \&git_blob,
 330         "blob_plain" => \&git_blob_plain,
 331         "commitdiff" => \&git_commitdiff,
 332         "commitdiff_plain" => \&git_commitdiff_plain,
 333         "commit" => \&git_commit,
 334         "heads" => \&git_heads,
 335         "history" => \&git_history,
 336         "log" => \&git_log,
 337         "rss" => \&git_rss,
 338         "search" => \&git_search,
 339         "shortlog" => \&git_shortlog,
 340         "summary" => \&git_summary,
 341         "tag" => \&git_tag,
 342         "tags" => \&git_tags,
 343         "tree" => \&git_tree,
 344         "snapshot" => \&git_snapshot,
 345         # those below don't need $project
 346         "opml" => \&git_opml,
 347         "project_list" => \&git_project_list,
 348         "project_index" => \&git_project_index,
 349 );
 350
 351 if (defined $project) {
 352         $action ||= 'summary';
 353 } else {
 354         $action ||= 'project_list';
 355 }
 356 if (!defined($actions{$action})) {
 357         die_error(undef, "Unknown action");
 358 }
 359 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 360     !$project) {
 361         die_error(undef, "Project needed");
 362 }
 363 $actions{$action}->();
 364 exit;
 365
 366 ## ======================================================================
 367 ## action links
 368
 369 sub href(%) {
 370         my %params = @_;
 371
 372         my @mapping = (
 373                 project => "p",
 374                 action => "a",
 375                 file_name => "f",
 376                 file_parent => "fp",
 377                 hash => "h",
 378                 hash_parent => "hp",
 379                 hash_base => "hb",
 380                 hash_parent_base => "hpb",
 381                 page => "pg",
 382                 order => "o",
 383                 searchtext => "s",
 384         );
 385         my %mapping = @mapping;
 386
 387         $params{'project'} = $project unless exists $params{'project'};
 388
 389         my @result = ();
 390         for (my $i = 0; $i < @mapping; $i += 2) {
 391                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 392                 if (defined $params{$name}) {
 393                         push @result, $symbol . "=" . esc_param($params{$name});
 394                 }
 395         }
 396         return "$my_uri?" . join(';', @result);
 397 }
 398
 399
 400 ## ======================================================================
 401 ## validation, quoting/unquoting and escaping
 402
 403 sub validate_pathname {
 404         my $input = shift || return undef;
 405
 406         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 407         # at the beginning, at the end, and between slashes.
 408         # also this catches doubled slashes
 409         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 410                 return undef;
 411         }
 412         # no null characters
 413         if ($input =~ m!\0!) {
 414                 return undef;
 415         }
 416         return $input;
 417 }
 418
 419 sub validate_refname {
 420         my $input = shift || return undef;
 421
 422         # textual hashes are O.K.
 423         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 424                 return $input;
 425         }
 426         # it must be correct pathname
 427         $input = validate_pathname($input)
 428                 or return undef;
 429         # restrictions on ref name according to git-check-ref-format
 430         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 431                 return undef;
 432         }
 433         return $input;
 434 }
 435
 436 # quote unsafe chars, but keep the slash, even when it's not
 437 # correct, but quoted slashes look too horrible in bookmarks
 438 sub esc_param {
 439         my $str = shift;
 440         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 441         $str =~ s/\+/%2B/g;
 442         $str =~ s/ /\+/g;
 443         return $str;
 444 }
 445
 446 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 447 sub esc_url {
 448         my $str = shift;
 449         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 450         $str =~ s/\+/%2B/g;
 451         $str =~ s/ /\+/g;
 452         return $str;
 453 }
 454
 455 # replace invalid utf8 character with SUBSTITUTION sequence
 456 sub esc_html {
 457         my $str = shift;
 458         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 459         $str = escapeHTML($str);
 460         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 461         return $str;
 462 }
 463
 464 # git may return quoted and escaped filenames
 465 sub unquote {
 466         my $str = shift;
 467         if ($str =~ m/^"(.*)"$/) {
 468                 $str = $1;
 469                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 470         }
 471         return $str;
 472 }
 473
 474 # escape tabs (convert tabs to spaces)
 475 sub untabify {
 476         my $line = shift;
 477
 478         while ((my $pos = index($line, "\t")) != -1) {
 479                 if (my $count = (8 - ($pos % 8))) {
 480                         my $spaces = ' ' x $count;
 481                         $line =~ s/\t/$spaces/;
 482                 }
 483         }
 484
 485         return $line;
 486 }
 487
 488 sub project_in_list {
 489         my $project = shift;
 490         my @list = git_get_projects_list();
 491         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 492 }
 493
 494 ## ----------------------------------------------------------------------
 495 ## HTML aware string manipulation
 496
 497 sub chop_str {
 498         my $str = shift;
 499         my $len = shift;
 500         my $add_len = shift || 10;
 501
 502         # allow only $len chars, but don't cut a word if it would fit in $add_len
 503         # if it doesn't fit, cut it if it's still longer than the dots we would add
 504         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 505         my $body = $1;
 506         my $tail = $2;
 507         if (length($tail) > 4) {
 508                 $tail = " ...";
 509                 $body =~ s/&[^;]*$//; # remove chopped character entities
 510         }
 511         return "$body$tail";
 512 }
 513
 514 ## ----------------------------------------------------------------------
 515 ## functions returning short strings
 516
 517 # CSS class for given age value (in seconds)
 518 sub age_class {
 519         my $age = shift;
 520
 521         if ($age < 60*60*2) {
 522                 return "age0";
 523         } elsif ($age < 60*60*24*2) {
 524                 return "age1";
 525         } else {
 526                 return "age2";
 527         }
 528 }
 529
 530 # convert age in seconds to "nn units ago" string
 531 sub age_string {
 532         my $age = shift;
 533         my $age_str;
 534
 535         if ($age > 60*60*24*365*2) {
 536                 $age_str = (int $age/60/60/24/365);
 537                 $age_str .= " years ago";
 538         } elsif ($age > 60*60*24*(365/12)*2) {
 539                 $age_str = int $age/60/60/24/(365/12);
 540                 $age_str .= " months ago";
 541         } elsif ($age > 60*60*24*7*2) {
 542                 $age_str = int $age/60/60/24/7;
 543                 $age_str .= " weeks ago";
 544         } elsif ($age > 60*60*24*2) {
 545                 $age_str = int $age/60/60/24;
 546                 $age_str .= " days ago";
 547         } elsif ($age > 60*60*2) {
 548                 $age_str = int $age/60/60;
 549                 $age_str .= " hours ago";
 550         } elsif ($age > 60*2) {
 551                 $age_str = int $age/60;
 552                 $age_str .= " min ago";
 553         } elsif ($age > 2) {
 554                 $age_str = int $age;
 555                 $age_str .= " sec ago";
 556         } else {
 557                 $age_str .= " right now";
 558         }
 559         return $age_str;
 560 }
 561
 562 # convert file mode in octal to symbolic file mode string
 563 sub mode_str {
 564         my $mode = oct shift;
 565
 566         if (S_ISDIR($mode & S_IFMT)) {
 567                 return 'drwxr-xr-x';
 568         } elsif (S_ISLNK($mode)) {
 569                 return 'lrwxrwxrwx';
 570         } elsif (S_ISREG($mode)) {
 571                 # git cares only about the executable bit
 572                 if ($mode & S_IXUSR) {
 573                         return '-rwxr-xr-x';
 574                 } else {
 575                         return '-rw-r--r--';
 576                 };
 577         } else {
 578                 return '----------';
 579         }
 580 }
 581
 582 # convert file mode in octal to file type string
 583 sub file_type {
 584         my $mode = shift;
 585
 586         if ($mode !~ m/^[0-7]+$/) {
 587                 return $mode;
 588         } else {
 589                 $mode = oct $mode;
 590         }
 591
 592         if (S_ISDIR($mode & S_IFMT)) {
 593                 return "directory";
 594         } elsif (S_ISLNK($mode)) {
 595                 return "symlink";
 596         } elsif (S_ISREG($mode)) {
 597                 return "file";
 598         } else {
 599                 return "unknown";
 600         }
 601 }
 602
 603 ## ----------------------------------------------------------------------
 604 ## functions returning short HTML fragments, or transforming HTML fragments
 605 ## which don't beling to other sections
 606
 607 # format line of commit message or tag comment
 608 sub format_log_line_html {
 609         my $line = shift;
 610
 611         $line = esc_html($line);
 612         $line =~ s/ /&nbsp;/g;
 613         if ($line =~ m/([0-9a-fA-F]{40})/) {
 614                 my $hash_text = $1;
 615                 if (git_get_type($hash_text) eq "commit") {
 616                         my $link =
 617                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 618                                         -class => "text"}, $hash_text);
 619                         $line =~ s/$hash_text/$link/;
 620                 }
 621         }
 622         return $line;
 623 }
 624
 625 # format marker of refs pointing to given object
 626 sub format_ref_marker {
 627         my ($refs, $id) = @_;
 628         my $markers = '';
 629
 630         if (defined $refs->{$id}) {
 631                 foreach my $ref (@{$refs->{$id}}) {
 632                         my ($type, $name) = qw();
 633                         # e.g. tags/v2.6.11 or heads/next
 634                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 635                                 $type = $1;
 636                                 $name = $2;
 637                         } else {
 638                                 $type = "ref";
 639                                 $name = $ref;
 640                         }
 641
 642                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 643                 }
 644         }
 645
 646         if ($markers) {
 647                 return ' <span class="refs">'. $markers . '</span>';
 648         } else {
 649                 return "";
 650         }
 651 }
 652
 653 # format, perhaps shortened and with markers, title line
 654 sub format_subject_html {
 655         my ($long, $short, $href, $extra) = @_;
 656         $extra = '' unless defined($extra);
 657
 658         if (length($short) < length($long)) {
 659                 return $cgi->a({-href => $href, -class => "list subject",
 660                                 -title => $long},
 661                        esc_html($short) . $extra);
 662         } else {
 663                 return $cgi->a({-href => $href, -class => "list subject"},
 664                        esc_html($long)  . $extra);
 665         }
 666 }
 667
 668 sub format_diff_line {
 669         my $line = shift;
 670         my $char = substr($line, 0, 1);
 671         my $diff_class = "";
 672
 673         chomp $line;
 674
 675         if ($char eq '+') {
 676                 $diff_class = " add";
 677         } elsif ($char eq "-") {
 678                 $diff_class = " rem";
 679         } elsif ($char eq "@") {
 680                 $diff_class = " chunk_header";
 681         } elsif ($char eq "\\") {
 682                 $diff_class = " incomplete";
 683         }
 684         $line = untabify($line);
 685         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 686 }
 687
 688 ## ----------------------------------------------------------------------
 689 ## git utility subroutines, invoking git commands
 690
 691 # returns path to the core git executable and the --git-dir parameter as list
 692 sub git_cmd {
 693         return $GIT, '--git-dir='.$git_dir;
 694 }
 695
 696 # returns path to the core git executable and the --git-dir parameter as string
 697 sub git_cmd_str {
 698         return join(' ', git_cmd());
 699 }
 700
 701 # get HEAD ref of given project as hash
 702 sub git_get_head_hash {
 703         my $project = shift;
 704         my $o_git_dir = $git_dir;
 705         my $retval = undef;
 706         $git_dir = "$projectroot/$project";
 707         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 708                 my $head = <$fd>;
 709                 close $fd;
 710                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 711                         $retval = $1;
 712                 }
 713         }
 714         if (defined $o_git_dir) {
 715                 $git_dir = $o_git_dir;
 716         }
 717         return $retval;
 718 }
 719
 720 # get type of given object
 721 sub git_get_type {
 722         my $hash = shift;
 723
 724         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 725         my $type = <$fd>;
 726         close $fd or return;
 727         chomp $type;
 728         return $type;
 729 }
 730
 731 sub git_get_project_config {
 732         my ($key, $type) = @_;
 733
 734         return unless ($key);
 735         $key =~ s/^gitweb\.//;
 736         return if ($key =~ m/\W/);
 737
 738         my @x = (git_cmd(), 'repo-config');
 739         if (defined $type) { push @x, $type; }
 740         push @x, "--get";
 741         push @x, "gitweb.$key";
 742         my $val = qx(@x);
 743         chomp $val;
 744         return ($val);
 745 }
 746
 747 # get hash of given path at given ref
 748 sub git_get_hash_by_path {
 749         my $base = shift;
 750         my $path = shift || return undef;
 751         my $type = shift;
 752
 753         $path =~ s,/+$,,;
 754
 755         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 756                 or die_error(undef, "Open git-ls-tree failed");
 757         my $line = <$fd>;
 758         close $fd or return undef;
 759
 760         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 761         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 762         if (defined $type && $type ne $2) {
 763                 # type doesn't match
 764                 return undef;
 765         }
 766         return $3;
 767 }
 768
 769 ## ......................................................................
 770 ## git utility functions, directly accessing git repository
 771
 772 sub git_get_project_description {
 773         my $path = shift;
 774
 775         open my $fd, "$projectroot/$path/description" or return undef;
 776         my $descr = <$fd>;
 777         close $fd;
 778         chomp $descr;
 779         return $descr;
 780 }
 781
 782 sub git_get_project_url_list {
 783         my $path = shift;
 784
 785         open my $fd, "$projectroot/$path/cloneurl" or return;
 786         my @git_project_url_list = map { chomp; $_ } <$fd>;
 787         close $fd;
 788
 789         return wantarray ? @git_project_url_list : \@git_project_url_list;
 790 }
 791
 792 sub git_get_projects_list {
 793         my @list;
 794
 795         if (-d $projects_list) {
 796                 # search in directory
 797                 my $dir = $projects_list;
 798                 my $pfxlen = length("$dir");
 799
 800                 File::Find::find({
 801                         follow_fast => 1, # follow symbolic links
 802                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 803                         wanted => sub {
 804                                 # skip project-list toplevel, if we get it.
 805                                 return if (m!^[/.]$!);
 806                                 # only directories can be git repositories
 807                                 return unless (-d $_);
 808
 809                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 810                                 # we check related file in $projectroot
 811                                 if (-e "$projectroot/$subdir/HEAD" && (!$export_ok ||
 812                                     -e "$projectroot/$subdir/$export_ok")) {
 813                                         push @list, { path => $subdir };
 814                                         $File::Find::prune = 1;
 815                                 }
 816                         },
 817                 }, "$dir");
 818
 819         } elsif (-f $projects_list) {
 820                 # read from file(url-encoded):
 821                 # 'git%2Fgit.git Linus+Torvalds'
 822                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 823                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 824                 open my ($fd), $projects_list or return;
 825                 while (my $line = <$fd>) {
 826                         chomp $line;
 827                         my ($path, $owner) = split ' ', $line;
 828                         $path = unescape($path);
 829                         $owner = unescape($owner);
 830                         if (!defined $path) {
 831                                 next;
 832                         }
 833                         if (-e "$projectroot/$path/HEAD" && (!$export_ok ||
 834                             -e "$projectroot/$path/$export_ok")) {
 835                                 my $pr = {
 836                                         path => $path,
 837                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 838                                 };
 839                                 push @list, $pr
 840                         }
 841                 }
 842                 close $fd;
 843         }
 844         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 845         return @list;
 846 }
 847
 848 sub git_get_project_owner {
 849         my $project = shift;
 850         my $owner;
 851
 852         return undef unless $project;
 853
 854         # read from file (url-encoded):
 855         # 'git%2Fgit.git Linus+Torvalds'
 856         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 857         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 858         if (-f $projects_list) {
 859                 open (my $fd , $projects_list);
 860                 while (my $line = <$fd>) {
 861                         chomp $line;
 862                         my ($pr, $ow) = split ' ', $line;
 863                         $pr = unescape($pr);
 864                         $ow = unescape($ow);
 865                         if ($pr eq $project) {
 866                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 867                                 last;
 868                         }
 869                 }
 870                 close $fd;
 871         }
 872         if (!defined $owner) {
 873                 $owner = get_file_owner("$projectroot/$project");
 874         }
 875
 876         return $owner;
 877 }
 878
 879 sub git_get_references {
 880         my $type = shift || "";
 881         my %refs;
 882         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 883         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 884         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 885                 or return;
 886
 887         while (my $line = <$fd>) {
 888                 chomp $line;
 889                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 890                         if (defined $refs{$1}) {
 891                                 push @{$refs{$1}}, $2;
 892                         } else {
 893                                 $refs{$1} = [ $2 ];
 894                         }
 895                 }
 896         }
 897         close $fd or return;
 898         return \%refs;
 899 }
 900
 901 sub git_get_rev_name_tags {
 902         my $hash = shift || return undef;
 903
 904         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 905                 or return;
 906         my $name_rev = <$fd>;
 907         close $fd;
 908
 909         if ($name_rev =~ m|^$hash tags/(.*)$|) {
 910                 return $1;
 911         } else {
 912                 # catches also '$hash undefined' output
 913                 return undef;
 914         }
 915 }
 916
 917 ## ----------------------------------------------------------------------
 918 ## parse to hash functions
 919
 920 sub parse_date {
 921         my $epoch = shift;
 922         my $tz = shift || "-0000";
 923
 924         my %date;
 925         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 926         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 927         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 928         $date{'hour'} = $hour;
 929         $date{'minute'} = $min;
 930         $date{'mday'} = $mday;
 931         $date{'day'} = $days[$wday];
 932         $date{'month'} = $months[$mon];
 933         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 934                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 935         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 936                              $mday, $months[$mon], $hour ,$min;
 937
 938         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 939         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 940         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 941         $date{'hour_local'} = $hour;
 942         $date{'minute_local'} = $min;
 943         $date{'tz_local'} = $tz;
 944         return %date;
 945 }
 946
 947 sub parse_tag {
 948         my $tag_id = shift;
 949         my %tag;
 950         my @comment;
 951
 952         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 953         $tag{'id'} = $tag_id;
 954         while (my $line = <$fd>) {
 955                 chomp $line;
 956                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 957                         $tag{'object'} = $1;
 958                 } elsif ($line =~ m/^type (.+)$/) {
 959                         $tag{'type'} = $1;
 960                 } elsif ($line =~ m/^tag (.+)$/) {
 961                         $tag{'name'} = $1;
 962                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 963                         $tag{'author'} = $1;
 964                         $tag{'epoch'} = $2;
 965                         $tag{'tz'} = $3;
 966                 } elsif ($line =~ m/--BEGIN/) {
 967                         push @comment, $line;
 968                         last;
 969                 } elsif ($line eq "") {
 970                         last;
 971                 }
 972         }
 973         push @comment, <$fd>;
 974         $tag{'comment'} = \@comment;
 975         close $fd or return;
 976         if (!defined $tag{'name'}) {
 977                 return
 978         };
 979         return %tag
 980 }
 981
 982 sub parse_commit {
 983         my $commit_id = shift;
 984         my $commit_text = shift;
 985
 986         my @commit_lines;
 987         my %co;
 988
 989         if (defined $commit_text) {
 990                 @commit_lines = @$commit_text;
 991         } else {
 992                 $/ = "\0";
 993                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
 994                         or return;
 995                 @commit_lines = split '\n', <$fd>;
 996                 close $fd or return;
 997                 $/ = "\n";
 998                 pop @commit_lines;
 999         }
1000         my $header = shift @commit_lines;
1001         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1002                 return;
1003         }
1004         ($co{'id'}, my @parents) = split ' ', $header;
1005         $co{'parents'} = \@parents;
1006         $co{'parent'} = $parents[0];
1007         while (my $line = shift @commit_lines) {
1008                 last if $line eq "\n";
1009                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1010                         $co{'tree'} = $1;
1011                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1012                         $co{'author'} = $1;
1013                         $co{'author_epoch'} = $2;
1014                         $co{'author_tz'} = $3;
1015                         if ($co{'author'} =~ m/^([^<]+) </) {
1016                                 $co{'author_name'} = $1;
1017                         } else {
1018                                 $co{'author_name'} = $co{'author'};
1019                         }
1020                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1021                         $co{'committer'} = $1;
1022                         $co{'committer_epoch'} = $2;
1023                         $co{'committer_tz'} = $3;
1024                         $co{'committer_name'} = $co{'committer'};
1025                         $co{'committer_name'} =~ s/ <.*//;
1026                 }
1027         }
1028         if (!defined $co{'tree'}) {
1029                 return;
1030         };
1031
1032         foreach my $title (@commit_lines) {
1033                 $title =~ s/^    //;
1034                 if ($title ne "") {
1035                         $co{'title'} = chop_str($title, 80, 5);
1036                         # remove leading stuff of merges to make the interesting part visible
1037                         if (length($title) > 50) {
1038                                 $title =~ s/^Automatic //;
1039                                 $title =~ s/^merge (of|with) /Merge ... /i;
1040                                 if (length($title) > 50) {
1041                                         $title =~ s/(http|rsync):\/\///;
1042                                 }
1043                                 if (length($title) > 50) {
1044                                         $title =~ s/(master|www|rsync)\.//;
1045                                 }
1046                                 if (length($title) > 50) {
1047                                         $title =~ s/kernel.org:?//;
1048                                 }
1049                                 if (length($title) > 50) {
1050                                         $title =~ s/\/pub\/scm//;
1051                                 }
1052                         }
1053                         $co{'title_short'} = chop_str($title, 50, 5);
1054                         last;
1055                 }
1056         }
1057         # remove added spaces
1058         foreach my $line (@commit_lines) {
1059                 $line =~ s/^    //;
1060         }
1061         $co{'comment'} = \@commit_lines;
1062
1063         my $age = time - $co{'committer_epoch'};
1064         $co{'age'} = $age;
1065         $co{'age_string'} = age_string($age);
1066         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1067         if ($age > 60*60*24*7*2) {
1068                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1069                 $co{'age_string_age'} = $co{'age_string'};
1070         } else {
1071                 $co{'age_string_date'} = $co{'age_string'};
1072                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1073         }
1074         return %co;
1075 }
1076
1077 # parse ref from ref_file, given by ref_id, with given type
1078 sub parse_ref {
1079         my $ref_file = shift;
1080         my $ref_id = shift;
1081         my $type = shift || git_get_type($ref_id);
1082         my %ref_item;
1083
1084         $ref_item{'type'} = $type;
1085         $ref_item{'id'} = $ref_id;
1086         $ref_item{'epoch'} = 0;
1087         $ref_item{'age'} = "unknown";
1088         if ($type eq "tag") {
1089                 my %tag = parse_tag($ref_id);
1090                 $ref_item{'comment'} = $tag{'comment'};
1091                 if ($tag{'type'} eq "commit") {
1092                         my %co = parse_commit($tag{'object'});
1093                         $ref_item{'epoch'} = $co{'committer_epoch'};
1094                         $ref_item{'age'} = $co{'age_string'};
1095                 } elsif (defined($tag{'epoch'})) {
1096                         my $age = time - $tag{'epoch'};
1097                         $ref_item{'epoch'} = $tag{'epoch'};
1098                         $ref_item{'age'} = age_string($age);
1099                 }
1100                 $ref_item{'reftype'} = $tag{'type'};
1101                 $ref_item{'name'} = $tag{'name'};
1102                 $ref_item{'refid'} = $tag{'object'};
1103         } elsif ($type eq "commit"){
1104                 my %co = parse_commit($ref_id);
1105                 $ref_item{'reftype'} = "commit";
1106                 $ref_item{'name'} = $ref_file;
1107                 $ref_item{'title'} = $co{'title'};
1108                 $ref_item{'refid'} = $ref_id;
1109                 $ref_item{'epoch'} = $co{'committer_epoch'};
1110                 $ref_item{'age'} = $co{'age_string'};
1111         } else {
1112                 $ref_item{'reftype'} = $type;
1113                 $ref_item{'name'} = $ref_file;
1114                 $ref_item{'refid'} = $ref_id;
1115         }
1116
1117         return %ref_item;
1118 }
1119
1120 # parse line of git-diff-tree "raw" output
1121 sub parse_difftree_raw_line {
1122         my $line = shift;
1123         my %res;
1124
1125         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1126         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1127         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1128                 $res{'from_mode'} = $1;
1129                 $res{'to_mode'} = $2;
1130                 $res{'from_id'} = $3;
1131                 $res{'to_id'} = $4;
1132                 $res{'status'} = $5;
1133                 $res{'similarity'} = $6;
1134                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1135                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1136                 } else {
1137                         $res{'file'} = unquote($7);
1138                 }
1139         }
1140         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1141         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1142                 $res{'commit'} = $1;
1143         }
1144
1145         return wantarray ? %res : \%res;
1146 }
1147
1148 # parse line of git-ls-tree output
1149 sub parse_ls_tree_line ($;%) {
1150         my $line = shift;
1151         my %opts = @_;
1152         my %res;
1153
1154         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1155         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1156
1157         $res{'mode'} = $1;
1158         $res{'type'} = $2;
1159         $res{'hash'} = $3;
1160         if ($opts{'-z'}) {
1161                 $res{'name'} = $4;
1162         } else {
1163                 $res{'name'} = unquote($4);
1164         }
1165
1166         return wantarray ? %res : \%res;
1167 }
1168
1169 ## ......................................................................
1170 ## parse to array of hashes functions
1171
1172 sub git_get_refs_list {
1173         my $type = shift || "";
1174         my %refs;
1175         my @reflist;
1176
1177         my @refs;
1178         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1179                 or return;
1180         while (my $line = <$fd>) {
1181                 chomp $line;
1182                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1183                         if (defined $refs{$1}) {
1184                                 push @{$refs{$1}}, $2;
1185                         } else {
1186                                 $refs{$1} = [ $2 ];
1187                         }
1188
1189                         if (! $4) { # unpeeled, direct reference
1190                                 push @refs, { hash => $1, name => $3 }; # without type
1191                         } elsif ($3 eq $refs[-1]{'name'}) {
1192                                 # most likely a tag is followed by its peeled
1193                                 # (deref) one, and when that happens we know the
1194                                 # previous one was of type 'tag'.
1195                                 $refs[-1]{'type'} = "tag";
1196                         }
1197                 }
1198         }
1199         close $fd;
1200
1201         foreach my $ref (@refs) {
1202                 my $ref_file = $ref->{'name'};
1203                 my $ref_id   = $ref->{'hash'};
1204
1205                 my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1206                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1207
1208                 push @reflist, \%ref_item;
1209         }
1210         # sort refs by age
1211         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1212         return (\@reflist, \%refs);
1213 }
1214
1215 ## ----------------------------------------------------------------------
1216 ## filesystem-related functions
1217
1218 sub get_file_owner {
1219         my $path = shift;
1220
1221         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1222         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1223         if (!defined $gcos) {
1224                 return undef;
1225         }
1226         my $owner = $gcos;
1227         $owner =~ s/[,;].*$//;
1228         return decode("utf8", $owner, Encode::FB_DEFAULT);
1229 }
1230
1231 ## ......................................................................
1232 ## mimetype related functions
1233
1234 sub mimetype_guess_file {
1235         my $filename = shift;
1236         my $mimemap = shift;
1237         -r $mimemap or return undef;
1238
1239         my %mimemap;
1240         open(MIME, $mimemap) or return undef;
1241         while (<MIME>) {
1242                 next if m/^#/; # skip comments
1243                 my ($mime, $exts) = split(/\t+/);
1244                 if (defined $exts) {
1245                         my @exts = split(/\s+/, $exts);
1246                         foreach my $ext (@exts) {
1247                                 $mimemap{$ext} = $mime;
1248                         }
1249                 }
1250         }
1251         close(MIME);
1252
1253         $filename =~ /\.([^.]*)$/;
1254         return $mimemap{$1};
1255 }
1256
1257 sub mimetype_guess {
1258         my $filename = shift;
1259         my $mime;
1260         $filename =~ /\./ or return undef;
1261
1262         if ($mimetypes_file) {
1263                 my $file = $mimetypes_file;
1264                 if ($file !~ m!^/!) { # if it is relative path
1265                         # it is relative to project
1266                         $file = "$projectroot/$project/$file";
1267                 }
1268                 $mime = mimetype_guess_file($filename, $file);
1269         }
1270         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1271         return $mime;
1272 }
1273
1274 sub blob_mimetype {
1275         my $fd = shift;
1276         my $filename = shift;
1277
1278         if ($filename) {
1279                 my $mime = mimetype_guess($filename);
1280                 $mime and return $mime;
1281         }
1282
1283         # just in case
1284         return $default_blob_plain_mimetype unless $fd;
1285
1286         if (-T $fd) {
1287                 return 'text/plain' .
1288                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1289         } elsif (! $filename) {
1290                 return 'application/octet-stream';
1291         } elsif ($filename =~ m/\.png$/i) {
1292                 return 'image/png';
1293         } elsif ($filename =~ m/\.gif$/i) {
1294                 return 'image/gif';
1295         } elsif ($filename =~ m/\.jpe?g$/i) {
1296                 return 'image/jpeg';
1297         } else {
1298                 return 'application/octet-stream';
1299         }
1300 }
1301
1302 ## ======================================================================
1303 ## functions printing HTML: header, footer, error page
1304
1305 sub git_header_html {
1306         my $status = shift || "200 OK";
1307         my $expires = shift;
1308
1309         my $title = "$site_name git";
1310         if (defined $project) {
1311                 $title .= " - $project";
1312                 if (defined $action) {
1313                         $title .= "/$action";
1314                         if (defined $file_name) {
1315                                 $title .= " - " . esc_html($file_name);
1316                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1317                                         $title .= "/";
1318                                 }
1319                         }
1320                 }
1321         }
1322         my $content_type;
1323         # require explicit support from the UA if we are to send the page as
1324         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1325         # we have to do this because MSIE sometimes globs '*/*', pretending to
1326         # support xhtml+xml but choking when it gets what it asked for.
1327         if (defined $cgi->http('HTTP_ACCEPT') &&
1328             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1329             $cgi->Accept('application/xhtml+xml') != 0) {
1330                 $content_type = 'application/xhtml+xml';
1331         } else {
1332                 $content_type = 'text/html';
1333         }
1334         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1335                            -status=> $status, -expires => $expires);
1336         print <<EOF;
1337 <?xml version="1.0" encoding="utf-8"?>
1338 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1339 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1340 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1341 <!-- git core binaries version $git_version -->
1342 <head>
1343 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1344 <meta name="generator" content="gitweb/$version git/$git_version"/>
1345 <meta name="robots" content="index, nofollow"/>
1346 <title>$title</title>
1347 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
1348 EOF
1349         if (defined $project) {
1350                 printf('<link rel="alternate" title="%s log" '.
1351                        'href="%s" type="application/rss+xml"/>'."\n",
1352                        esc_param($project), href(action=>"rss"));
1353         } else {
1354                 printf('<link rel="alternate" title="%s projects list" '.
1355                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1356                        $site_name, href(project=>undef, action=>"project_index"));
1357                 printf('<link rel="alternate" title="%s projects logs" '.
1358                        'href="%s" type="text/x-opml"/>'."\n",
1359                        $site_name, href(project=>undef, action=>"opml"));
1360         }
1361         if (defined $favicon) {
1362                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1363         }
1364
1365         print "</head>\n" .
1366               "<body>\n" .
1367               "<div class=\"page_header\">\n" .
1368               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1369               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1370               "</a>\n";
1371         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1372         if (defined $project) {
1373                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1374                 if (defined $action) {
1375                         print " / $action";
1376                 }
1377                 print "\n";
1378                 if (!defined $searchtext) {
1379                         $searchtext = "";
1380                 }
1381                 my $search_hash;
1382                 if (defined $hash_base) {
1383                         $search_hash = $hash_base;
1384                 } elsif (defined $hash) {
1385                         $search_hash = $hash;
1386                 } else {
1387                         $search_hash = "HEAD";
1388                 }
1389                 $cgi->param("a", "search");
1390                 $cgi->param("h", $search_hash);
1391                 print $cgi->startform(-method => "get", -action => $my_uri) .
1392                       "<div class=\"search\">\n" .
1393                       $cgi->hidden(-name => "p") . "\n" .
1394                       $cgi->hidden(-name => "a") . "\n" .
1395                       $cgi->hidden(-name => "h") . "\n" .
1396                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1397                       "</div>" .
1398                       $cgi->end_form() . "\n";
1399         }
1400         print "</div>\n";
1401 }
1402
1403 sub git_footer_html {
1404         print "<div class=\"page_footer\">\n";
1405         if (defined $project) {
1406                 my $descr = git_get_project_description($project);
1407                 if (defined $descr) {
1408                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1409                 }
1410                 print $cgi->a({-href => href(action=>"rss"),
1411                               -class => "rss_logo"}, "RSS") . "\n";
1412         } else {
1413                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1414                               -class => "rss_logo"}, "OPML") . " ";
1415                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1416                               -class => "rss_logo"}, "TXT") . "\n";
1417         }
1418         print "</div>\n" .
1419               "</body>\n" .
1420               "</html>";
1421 }
1422
1423 sub die_error {
1424         my $status = shift || "403 Forbidden";
1425         my $error = shift || "Malformed query, file missing or permission denied";
1426
1427         git_header_html($status);
1428         print <<EOF;
1429 <div class="page_body">
1430 <br /><br />
1431 $status - $error
1432 <br />
1433 </div>
1434 EOF
1435         git_footer_html();
1436         exit;
1437 }
1438
1439 ## ----------------------------------------------------------------------
1440 ## functions printing or outputting HTML: navigation
1441
1442 sub git_print_page_nav {
1443         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1444         $extra = '' if !defined $extra; # pager or formats
1445
1446         my @navs = qw(summary shortlog log commit commitdiff tree);
1447         if ($suppress) {
1448                 @navs = grep { $_ ne $suppress } @navs;
1449         }
1450
1451         my %arg = map { $_ => {action=>$_} } @navs;
1452         if (defined $head) {
1453                 for (qw(commit commitdiff)) {
1454                         $arg{$_}{hash} = $head;
1455                 }
1456                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1457                         for (qw(shortlog log)) {
1458                                 $arg{$_}{hash} = $head;
1459                         }
1460                 }
1461         }
1462         $arg{tree}{hash} = $treehead if defined $treehead;
1463         $arg{tree}{hash_base} = $treebase if defined $treebase;
1464
1465         print "<div class=\"page_nav\">\n" .
1466                 (join " | ",
1467                  map { $_ eq $current ?
1468                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1469                  } @navs);
1470         print "<br/>\n$extra<br/>\n" .
1471               "</div>\n";
1472 }
1473
1474 sub format_paging_nav {
1475         my ($action, $hash, $head, $page, $nrevs) = @_;
1476         my $paging_nav;
1477
1478
1479         if ($hash ne $head || $page) {
1480                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1481         } else {
1482                 $paging_nav .= "HEAD";
1483         }
1484
1485         if ($page > 0) {
1486                 $paging_nav .= " &sdot; " .
1487                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1488                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1489         } else {
1490                 $paging_nav .= " &sdot; prev";
1491         }
1492
1493         if ($nrevs >= (100 * ($page+1)-1)) {
1494                 $paging_nav .= " &sdot; " .
1495                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1496                                  -accesskey => "n", -title => "Alt-n"}, "next");
1497         } else {
1498                 $paging_nav .= " &sdot; next";
1499         }
1500
1501         return $paging_nav;
1502 }
1503
1504 ## ......................................................................
1505 ## functions printing or outputting HTML: div
1506
1507 sub git_print_header_div {
1508         my ($action, $title, $hash, $hash_base) = @_;
1509         my %args = ();
1510
1511         $args{action} = $action;
1512         $args{hash} = $hash if $hash;
1513         $args{hash_base} = $hash_base if $hash_base;
1514
1515         print "<div class=\"header\">\n" .
1516               $cgi->a({-href => href(%args), -class => "title"},
1517               $title ? $title : $action) .
1518               "\n</div>\n";
1519 }
1520
1521 #sub git_print_authorship (\%) {
1522 sub git_print_authorship {
1523         my $co = shift;
1524
1525         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1526         print "<div class=\"author_date\">" .
1527               esc_html($co->{'author_name'}) .
1528               " [$ad{'rfc2822'}";
1529         if ($ad{'hour_local'} < 6) {
1530                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1531                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1532         } else {
1533                 printf(" (%02d:%02d %s)",
1534                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1535         }
1536         print "]</div>\n";
1537 }
1538
1539 sub git_print_page_path {
1540         my $name = shift;
1541         my $type = shift;
1542         my $hb = shift;
1543
1544         if (!defined $name) {
1545                 print "<div class=\"page_path\">/</div>\n";
1546         } else {
1547                 my @dirname = split '/', $name;
1548                 my $basename = pop @dirname;
1549                 my $fullname = '';
1550
1551                 print "<div class=\"page_path\">";
1552                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1553                               -title => 'tree root'}, "[$project]");
1554                 print " / ";
1555                 foreach my $dir (@dirname) {
1556                         $fullname .= ($fullname ? '/' : '') . $dir;
1557                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1558                                                      hash_base=>$hb),
1559                                       -title => $fullname}, esc_html($dir));
1560                         print " / ";
1561                 }
1562                 if (defined $type && $type eq 'blob') {
1563                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1564                                                      hash_base=>$hb),
1565                                       -title => $name}, esc_html($basename));
1566                 } elsif (defined $type && $type eq 'tree') {
1567                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1568                                                      hash_base=>$hb),
1569                                       -title => $name}, esc_html($basename));
1570                 } else {
1571                         print esc_html($basename);
1572                 }
1573                 print "<br/></div>\n";
1574         }
1575 }
1576
1577 # sub git_print_log (\@;%) {
1578 sub git_print_log ($;%) {
1579         my $log = shift;
1580         my %opts = @_;
1581
1582         if ($opts{'-remove_title'}) {
1583                 # remove title, i.e. first line of log
1584                 shift @$log;
1585         }
1586         # remove leading empty lines
1587         while (defined $log->[0] && $log->[0] eq "") {
1588                 shift @$log;
1589         }
1590
1591         # print log
1592         my $signoff = 0;
1593         my $empty = 0;
1594         foreach my $line (@$log) {
1595                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1596                         $signoff = 1;
1597                         $empty = 0;
1598                         if (! $opts{'-remove_signoff'}) {
1599                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1600                                 next;
1601                         } else {
1602                                 # remove signoff lines
1603                                 next;
1604                         }
1605                 } else {
1606                         $signoff = 0;
1607                 }
1608
1609                 # print only one empty line
1610                 # do not print empty line after signoff
1611                 if ($line eq "") {
1612                         next if ($empty || $signoff);
1613                         $empty = 1;
1614                 } else {
1615                         $empty = 0;
1616                 }
1617
1618                 print format_log_line_html($line) . "<br/>\n";
1619         }
1620
1621         if ($opts{'-final_empty_line'}) {
1622                 # end with single empty line
1623                 print "<br/>\n" unless $empty;
1624         }
1625 }
1626
1627 sub git_print_simplified_log {
1628         my $log = shift;
1629         my $remove_title = shift;
1630
1631         git_print_log($log,
1632                 -final_empty_line=> 1,
1633                 -remove_title => $remove_title);
1634 }
1635
1636 # print tree entry (row of git_tree), but without encompassing <tr> element
1637 sub git_print_tree_entry {
1638         my ($t, $basedir, $hash_base, $have_blame) = @_;
1639
1640         my %base_key = ();
1641         $base_key{hash_base} = $hash_base if defined $hash_base;
1642
1643         # The format of a table row is: mode list link.  Where mode is
1644         # the mode of the entry, list is the name of the entry, an href,
1645         # and link is the action links of the entry.
1646
1647         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1648         if ($t->{'type'} eq "blob") {
1649                 print "<td class=\"list\">" .
1650                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1651                                                file_name=>"$basedir$t->{'name'}", %base_key),
1652                                  -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1653                 print "<td class=\"link\">";
1654                 if ($have_blame) {
1655                         print $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1656                                                      file_name=>"$basedir$t->{'name'}", %base_key)},
1657                                       "blame");
1658                 }
1659                 if (defined $hash_base) {
1660                         if ($have_blame) {
1661                                 print " | ";
1662                         }
1663                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1664                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1665                                       "history");
1666                 }
1667                 print " | " .
1668                       $cgi->a({-href => href(action=>"blob_plain",
1669                                              hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1670                               "raw");
1671                 print "</td>\n";
1672
1673         } elsif ($t->{'type'} eq "tree") {
1674                 print "<td class=\"list\">";
1675                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1676                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1677                               esc_html($t->{'name'}));
1678                 print "</td>\n";
1679                 print "<td class=\"link\">";
1680                 if (defined $hash_base) {
1681                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1682                                                      file_name=>"$basedir$t->{'name'}")},
1683                                       "history");
1684                 }
1685                 print "</td>\n";
1686         }
1687 }
1688
1689 ## ......................................................................
1690 ## functions printing large fragments of HTML
1691
1692 sub git_difftree_body {
1693         my ($difftree, $hash, $parent) = @_;
1694
1695         print "<div class=\"list_head\">\n";
1696         if ($#{$difftree} > 10) {
1697                 print(($#{$difftree} + 1) . " files changed:\n");
1698         }
1699         print "</div>\n";
1700
1701         print "<table class=\"diff_tree\">\n";
1702         my $alternate = 0;
1703         my $patchno = 0;
1704         foreach my $line (@{$difftree}) {
1705                 my %diff = parse_difftree_raw_line($line);
1706
1707                 if ($alternate) {
1708                         print "<tr class=\"dark\">\n";
1709                 } else {
1710                         print "<tr class=\"light\">\n";
1711                 }
1712                 $alternate ^= 1;
1713
1714                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1715                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1716                 if ($diff{'to_mode'} ne ('0' x 6)) {
1717                         $to_mode_oct = oct $diff{'to_mode'};
1718                         if (S_ISREG($to_mode_oct)) { # only for regular file
1719                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1720                         }
1721                         $to_file_type = file_type($diff{'to_mode'});
1722                 }
1723                 if ($diff{'from_mode'} ne ('0' x 6)) {
1724                         $from_mode_oct = oct $diff{'from_mode'};
1725                         if (S_ISREG($to_mode_oct)) { # only for regular file
1726                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1727                         }
1728                         $from_file_type = file_type($diff{'from_mode'});
1729                 }
1730
1731                 if ($diff{'status'} eq "A") { # created
1732                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1733                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1734                         $mode_chng   .= "]</span>";
1735                         print "<td>";
1736                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1737                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1738                                        -class => "list"}, esc_html($diff{'file'}));
1739                         print "</td>\n";
1740                         print "<td>$mode_chng</td>\n";
1741                         print "<td class=\"link\">";
1742                         if ($action eq 'commitdiff') {
1743                                 # link to patch
1744                                 $patchno++;
1745                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1746                         }
1747                         print "</td>\n";
1748
1749                 } elsif ($diff{'status'} eq "D") { # deleted
1750                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1751                         print "<td>";
1752                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1753                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1754                                        -class => "list"}, esc_html($diff{'file'}));
1755                         print "</td>\n";
1756                         print "<td>$mode_chng</td>\n";
1757                         print "<td class=\"link\">";
1758                         if ($action eq 'commitdiff') {
1759                                 # link to patch
1760                                 $patchno++;
1761                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1762                                 print " | ";
1763                         }
1764                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1765                                                      file_name=>$diff{'file'})},
1766                                       "blame") . " | ";
1767                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1768                                                      file_name=>$diff{'file'})},
1769                                       "history");
1770                         print "</td>\n";
1771
1772                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1773                         my $mode_chnge = "";
1774                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1775                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1776                                 if ($from_file_type != $to_file_type) {
1777                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1778                                 }
1779                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1780                                         if ($from_mode_str && $to_mode_str) {
1781                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1782                                         } elsif ($to_mode_str) {
1783                                                 $mode_chnge .= " mode: $to_mode_str";
1784                                         }
1785                                 }
1786                                 $mode_chnge .= "]</span>\n";
1787                         }
1788                         print "<td>";
1789                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1790                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1791                                        -class => "list"}, esc_html($diff{'file'}));
1792                         print "</td>\n";
1793                         print "<td>$mode_chnge</td>\n";
1794                         print "<td class=\"link\">";
1795                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1796                                 if ($action eq 'commitdiff') {
1797                                         # link to patch
1798                                         $patchno++;
1799                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1800                                 } else {
1801                                         print $cgi->a({-href => href(action=>"blobdiff",
1802                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1803                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1804                                                                      file_name=>$diff{'file'})},
1805                                                       "diff");
1806                                 }
1807                                 print " | ";
1808                         }
1809                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1810                                                      file_name=>$diff{'file'})},
1811                                       "blame") . " | ";
1812                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1813                                                      file_name=>$diff{'file'})},
1814                                       "history");
1815                         print "</td>\n";
1816
1817                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1818                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1819                         my $nstatus = $status_name{$diff{'status'}};
1820                         my $mode_chng = "";
1821                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1822                                 # mode also for directories, so we cannot use $to_mode_str
1823                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1824                         }
1825                         print "<td>" .
1826                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1827                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1828                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1829                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1830                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1831                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1832                                       -class => "list"}, esc_html($diff{'from_file'})) .
1833                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1834                               "<td class=\"link\">";
1835                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1836                                 if ($action eq 'commitdiff') {
1837                                         # link to patch
1838                                         $patchno++;
1839                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1840                                 } else {
1841                                         print $cgi->a({-href => href(action=>"blobdiff",
1842                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1843                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1844                                                                      file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1845                                                       "diff");
1846                                 }
1847                                 print " | ";
1848                         }
1849                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1850                                                      file_name=>$diff{'from_file'})},
1851                                       "blame") . " | ";
1852                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1853                                                      file_name=>$diff{'from_file'})},
1854                                       "history");
1855                         print "</td>\n";
1856
1857                 } # we should not encounter Unmerged (U) or Unknown (X) status
1858                 print "</tr>\n";
1859         }
1860         print "</table>\n";
1861 }
1862
1863 sub git_patchset_body {
1864         my ($fd, $difftree, $hash, $hash_parent) = @_;
1865
1866         my $patch_idx = 0;
1867         my $in_header = 0;
1868         my $patch_found = 0;
1869         my $diffinfo;
1870
1871         print "<div class=\"patchset\">\n";
1872
1873         LINE:
1874         while (my $patch_line = <$fd>) {
1875                 chomp $patch_line;
1876
1877                 if ($patch_line =~ m/^diff /) { # "git diff" header
1878                         # beginning of patch (in patchset)
1879                         if ($patch_found) {
1880                                 # close previous patch
1881                                 print "</div>\n"; # class="patch"
1882                         } else {
1883                                 # first patch in patchset
1884                                 $patch_found = 1;
1885                         }
1886                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1887
1888                         if (ref($difftree->[$patch_idx]) eq "HASH") {
1889                                 $diffinfo = $difftree->[$patch_idx];
1890                         } else {
1891                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1892                         }
1893                         $patch_idx++;
1894
1895                         # for now, no extended header, hence we skip empty patches
1896                         # companion to  next LINE if $in_header;
1897                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1898                                 $in_header = 1;
1899                                 next LINE;
1900                         }
1901
1902                         if ($diffinfo->{'status'} eq "A") { # added
1903                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1904                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1905                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1906                                               $diffinfo->{'to_id'}) . "(new)" .
1907                                       "</div>\n"; # class="diff_info"
1908
1909                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
1910                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1911                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1912                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1913                                               $diffinfo->{'from_id'}) . "(deleted)" .
1914                                       "</div>\n"; # class="diff_info"
1915
1916                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
1917                                  $diffinfo->{'status'} eq "C" || # copied
1918                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1919                                 print "<div class=\"diff_info\">" .
1920                                       file_type($diffinfo->{'from_mode'}) . ":" .
1921                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1922                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1923                                               $diffinfo->{'from_id'}) .
1924                                       " -> " .
1925                                       file_type($diffinfo->{'to_mode'}) . ":" .
1926                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1927                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1928                                               $diffinfo->{'to_id'});
1929                                 print "</div>\n"; # class="diff_info"
1930
1931                         } else { # modified, mode changed, ...
1932                                 print "<div class=\"diff_info\">" .
1933                                       file_type($diffinfo->{'from_mode'}) . ":" .
1934                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1935                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1936                                               $diffinfo->{'from_id'}) .
1937                                       " -> " .
1938                                       file_type($diffinfo->{'to_mode'}) . ":" .
1939                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1940                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1941                                               $diffinfo->{'to_id'});
1942                                 print "</div>\n"; # class="diff_info"
1943                         }
1944
1945                         #print "<div class=\"diff extended_header\">\n";
1946                         $in_header = 1;
1947                         next LINE;
1948                 } # start of patch in patchset
1949
1950
1951                 if ($in_header && $patch_line =~ m/^---/) {
1952                         #print "</div>\n"; # class="diff extended_header"
1953                         $in_header = 0;
1954
1955                         my $file = $diffinfo->{'from_file'};
1956                         $file  ||= $diffinfo->{'file'};
1957                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1958                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
1959                                         -class => "list"}, esc_html($file));
1960                         $patch_line =~ s|a/.*$|a/$file|g;
1961                         print "<div class=\"diff from_file\">$patch_line</div>\n";
1962
1963                         $patch_line = <$fd>;
1964                         chomp $patch_line;
1965
1966                         #$patch_line =~ m/^+++/;
1967                         $file    = $diffinfo->{'to_file'};
1968                         $file  ||= $diffinfo->{'file'};
1969                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1970                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
1971                                         -class => "list"}, esc_html($file));
1972                         $patch_line =~ s|b/.*|b/$file|g;
1973                         print "<div class=\"diff to_file\">$patch_line</div>\n";
1974
1975                         next LINE;
1976                 }
1977                 next LINE if $in_header;
1978
1979                 print format_diff_line($patch_line);
1980         }
1981         print "</div>\n" if $patch_found; # class="patch"
1982
1983         print "</div>\n"; # class="patchset"
1984 }
1985
1986 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1987
1988 sub git_shortlog_body {
1989         # uses global variable $project
1990         my ($revlist, $from, $to, $refs, $extra) = @_;
1991
1992         $from = 0 unless defined $from;
1993         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1994
1995         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1996         my $alternate = 0;
1997         for (my $i = $from; $i <= $to; $i++) {
1998                 my $commit = $revlist->[$i];
1999                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2000                 my $ref = format_ref_marker($refs, $commit);
2001                 my %co = parse_commit($commit);
2002                 if ($alternate) {
2003                         print "<tr class=\"dark\">\n";
2004                 } else {
2005                         print "<tr class=\"light\">\n";
2006                 }
2007                 $alternate ^= 1;
2008                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2009                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2010                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2011                       "<td>";
2012                 print format_subject_html($co{'title'}, $co{'title_short'},
2013                                           href(action=>"commit", hash=>$commit), $ref);
2014                 print "</td>\n" .
2015                       "<td class=\"link\">" .
2016                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2017                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2018                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2019                 print "</td>\n" .
2020                       "</tr>\n";
2021         }
2022         if (defined $extra) {
2023                 print "<tr>\n" .
2024                       "<td colspan=\"4\">$extra</td>\n" .
2025                       "</tr>\n";
2026         }
2027         print "</table>\n";
2028 }
2029
2030 sub git_history_body {
2031         # Warning: assumes constant type (blob or tree) during history
2032         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2033
2034         $from = 0 unless defined $from;
2035         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2036
2037         print "<table class=\"history\" cellspacing=\"0\">\n";
2038         my $alternate = 0;
2039         for (my $i = $from; $i <= $to; $i++) {
2040                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2041                         next;
2042                 }
2043
2044                 my $commit = $1;
2045                 my %co = parse_commit($commit);
2046                 if (!%co) {
2047                         next;
2048                 }
2049
2050                 my $ref = format_ref_marker($refs, $commit);
2051
2052                 if ($alternate) {
2053                         print "<tr class=\"dark\">\n";
2054                 } else {
2055                         print "<tr class=\"light\">\n";
2056                 }
2057                 $alternate ^= 1;
2058                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2059                       # shortlog uses      chop_str($co{'author_name'}, 10)
2060                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2061                       "<td>";
2062                 # originally git_history used chop_str($co{'title'}, 50)
2063                 print format_subject_html($co{'title'}, $co{'title_short'},
2064                                           href(action=>"commit", hash=>$commit), $ref);
2065                 print "</td>\n" .
2066                       "<td class=\"link\">" .
2067                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2068                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2069                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
2070
2071                 if ($ftype eq 'blob') {
2072                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2073                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2074                         if (defined $blob_current && defined $blob_parent &&
2075                                         $blob_current ne $blob_parent) {
2076                                 print " | " .
2077                                         $cgi->a({-href => href(action=>"blobdiff",
2078                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2079                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2080                                                                file_name=>$file_name)},
2081                                                 "diff to current");
2082                         }
2083                 }
2084                 print "</td>\n" .
2085                       "</tr>\n";
2086         }
2087         if (defined $extra) {
2088                 print "<tr>\n" .
2089                       "<td colspan=\"4\">$extra</td>\n" .
2090                       "</tr>\n";
2091         }
2092         print "</table>\n";
2093 }
2094
2095 sub git_tags_body {
2096         # uses global variable $project
2097         my ($taglist, $from, $to, $extra) = @_;
2098         $from = 0 unless defined $from;
2099         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2100
2101         print "<table class=\"tags\" cellspacing=\"0\">\n";
2102         my $alternate = 0;
2103         for (my $i = $from; $i <= $to; $i++) {
2104                 my $entry = $taglist->[$i];
2105                 my %tag = %$entry;
2106                 my $comment_lines = $tag{'comment'};
2107                 my $comment = shift @$comment_lines;
2108                 my $comment_short;
2109                 if (defined $comment) {
2110                         $comment_short = chop_str($comment, 30, 5);
2111                 }
2112                 if ($alternate) {
2113                         print "<tr class=\"dark\">\n";
2114                 } else {
2115                         print "<tr class=\"light\">\n";
2116                 }
2117                 $alternate ^= 1;
2118                 print "<td><i>$tag{'age'}</i></td>\n" .
2119                       "<td>" .
2120                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2121                                -class => "list name"}, esc_html($tag{'name'})) .
2122                       "</td>\n" .
2123                       "<td>";
2124                 if (defined $comment) {
2125                         print format_subject_html($comment, $comment_short,
2126                                                   href(action=>"tag", hash=>$tag{'id'}));
2127                 }
2128                 print "</td>\n" .
2129                       "<td class=\"selflink\">";
2130                 if ($tag{'type'} eq "tag") {
2131                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2132                 } else {
2133                         print "&nbsp;";
2134                 }
2135                 print "</td>\n" .
2136                       "<td class=\"link\">" . " | " .
2137                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2138                 if ($tag{'reftype'} eq "commit") {
2139                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2140                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2141                 } elsif ($tag{'reftype'} eq "blob") {
2142                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2143                 }
2144                 print "</td>\n" .
2145                       "</tr>";
2146         }
2147         if (defined $extra) {
2148                 print "<tr>\n" .
2149                       "<td colspan=\"5\">$extra</td>\n" .
2150                       "</tr>\n";
2151         }
2152         print "</table>\n";
2153 }
2154
2155 sub git_heads_body {
2156         # uses global variable $project
2157         my ($headlist, $head, $from, $to, $extra) = @_;
2158         $from = 0 unless defined $from;
2159         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2160
2161         print "<table class=\"heads\" cellspacing=\"0\">\n";
2162         my $alternate = 0;
2163         for (my $i = $from; $i <= $to; $i++) {
2164                 my $entry = $headlist->[$i];
2165                 my %tag = %$entry;
2166                 my $curr = $tag{'id'} eq $head;
2167                 if ($alternate) {
2168                         print "<tr class=\"dark\">\n";
2169                 } else {
2170                         print "<tr class=\"light\">\n";
2171                 }
2172                 $alternate ^= 1;
2173                 print "<td><i>$tag{'age'}</i></td>\n" .
2174                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2175                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2176                                -class => "list name"},esc_html($tag{'name'})) .
2177                       "</td>\n" .
2178                       "<td class=\"link\">" .
2179                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2180                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2181                       $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2182                       "</td>\n" .
2183                       "</tr>";
2184         }
2185         if (defined $extra) {
2186                 print "<tr>\n" .
2187                       "<td colspan=\"3\">$extra</td>\n" .
2188                       "</tr>\n";
2189         }
2190         print "</table>\n";
2191 }
2192
2193 ## ======================================================================
2194 ## ======================================================================
2195 ## actions
2196
2197 sub git_project_list {
2198         my $order = $cgi->param('o');
2199         if (defined $order && $order !~ m/project|descr|owner|age/) {
2200                 die_error(undef, "Unknown order parameter");
2201         }
2202
2203         my @list = git_get_projects_list();
2204         my @projects;
2205         if (!@list) {
2206                 die_error(undef, "No projects found");
2207         }
2208         foreach my $pr (@list) {
2209                 my $head = git_get_head_hash($pr->{'path'});
2210                 if (!defined $head) {
2211                         next;
2212                 }
2213                 $git_dir = "$projectroot/$pr->{'path'}";
2214                 my %co = parse_commit($head);
2215                 if (!%co) {
2216                         next;
2217                 }
2218                 $pr->{'commit'} = \%co;
2219                 if (!defined $pr->{'descr'}) {
2220                         my $descr = git_get_project_description($pr->{'path'}) || "";
2221                         $pr->{'descr'} = chop_str($descr, 25, 5);
2222                 }
2223                 if (!defined $pr->{'owner'}) {
2224                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2225                 }
2226                 push @projects, $pr;
2227         }
2228
2229         git_header_html();
2230         if (-f $home_text) {
2231                 print "<div class=\"index_include\">\n";
2232                 open (my $fd, $home_text);
2233                 print <$fd>;
2234                 close $fd;
2235                 print "</div>\n";
2236         }
2237         print "<table class=\"project_list\">\n" .
2238               "<tr>\n";
2239         $order ||= "project";
2240         if ($order eq "project") {
2241                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2242                 print "<th>Project</th>\n";
2243         } else {
2244                 print "<th>" .
2245                       $cgi->a({-href => href(project=>undef, order=>'project'),
2246                                -class => "header"}, "Project") .
2247                       "</th>\n";
2248         }
2249         if ($order eq "descr") {
2250                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2251                 print "<th>Description</th>\n";
2252         } else {
2253                 print "<th>" .
2254                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2255                                -class => "header"}, "Description") .
2256                       "</th>\n";
2257         }
2258         if ($order eq "owner") {
2259                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2260                 print "<th>Owner</th>\n";
2261         } else {
2262                 print "<th>" .
2263                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2264                                -class => "header"}, "Owner") .
2265                       "</th>\n";
2266         }
2267         if ($order eq "age") {
2268                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2269                 print "<th>Last Change</th>\n";
2270         } else {
2271                 print "<th>" .
2272                       $cgi->a({-href => href(project=>undef, order=>'age'),
2273                                -class => "header"}, "Last Change") .
2274                       "</th>\n";
2275         }
2276         print "<th></th>\n" .
2277               "</tr>\n";
2278         my $alternate = 0;
2279         foreach my $pr (@projects) {
2280                 if ($alternate) {
2281                         print "<tr class=\"dark\">\n";
2282                 } else {
2283                         print "<tr class=\"light\">\n";
2284                 }
2285                 $alternate ^= 1;
2286                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2287                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2288                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2289                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2290                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2291                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2292                       "<td class=\"link\">" .
2293                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2294                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2295                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2296                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2297                       "</td>\n" .
2298                       "</tr>\n";
2299         }
2300         print "</table>\n";
2301         git_footer_html();
2302 }
2303
2304 sub git_project_index {
2305         my @projects = git_get_projects_list();
2306
2307         print $cgi->header(
2308                 -type => 'text/plain',
2309                 -charset => 'utf-8',
2310                 -content_disposition => 'inline; filename="index.aux"');
2311
2312         foreach my $pr (@projects) {
2313                 if (!exists $pr->{'owner'}) {
2314                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2315                 }
2316
2317                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2318                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2319                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2320                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2321                 $path  =~ s/ /\+/g;
2322                 $owner =~ s/ /\+/g;
2323
2324                 print "$path $owner\n";
2325         }
2326 }
2327
2328 sub git_summary {
2329         my $descr = git_get_project_description($project) || "none";
2330         my $head = git_get_head_hash($project);
2331         my %co = parse_commit($head);
2332         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2333
2334         my $owner = git_get_project_owner($project);
2335
2336         my ($reflist, $refs) = git_get_refs_list();
2337
2338         my @taglist;
2339         my @headlist;
2340         foreach my $ref (@$reflist) {
2341                 if ($ref->{'name'} =~ s!^heads/!!) {
2342                         push @headlist, $ref;
2343                 } else {
2344                         $ref->{'name'} =~ s!^tags/!!;
2345                         push @taglist, $ref;
2346                 }
2347         }
2348
2349         git_header_html();
2350         git_print_page_nav('summary','', $head);
2351
2352         print "<div class=\"title\">&nbsp;</div>\n";
2353         print "<table cellspacing=\"0\">\n" .
2354               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2355               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2356               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2357         # use per project git URL list in $projectroot/$project/cloneurl
2358         # or make project git URL from git base URL and project name
2359         my $url_tag = "URL";
2360         my @url_list = git_get_project_url_list($project);
2361         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2362         foreach my $git_url (@url_list) {
2363                 next unless $git_url;
2364                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2365                 $url_tag = "";
2366         }
2367         print "</table>\n";
2368
2369         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2370                 git_get_head_hash($project)
2371                 or die_error(undef, "Open git-rev-list failed");
2372         my @revlist = map { chomp; $_ } <$fd>;
2373         close $fd;
2374         git_print_header_div('shortlog');
2375         git_shortlog_body(\@revlist, 0, 15, $refs,
2376                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2377
2378         if (@taglist) {
2379                 git_print_header_div('tags');
2380                 git_tags_body(\@taglist, 0, 15,
2381                               $cgi->a({-href => href(action=>"tags")}, "..."));
2382         }
2383
2384         if (@headlist) {
2385                 git_print_header_div('heads');
2386                 git_heads_body(\@headlist, $head, 0, 15,
2387                                $cgi->a({-href => href(action=>"heads")}, "..."));
2388         }
2389
2390         git_footer_html();
2391 }
2392
2393 sub git_tag {
2394         my $head = git_get_head_hash($project);
2395         git_header_html();
2396         git_print_page_nav('','', $head,undef,$head);
2397         my %tag = parse_tag($hash);
2398         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2399         print "<div class=\"title_text\">\n" .
2400               "<table cellspacing=\"0\">\n" .
2401               "<tr>\n" .
2402               "<td>object</td>\n" .
2403               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2404                                $tag{'object'}) . "</td>\n" .
2405               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2406                                               $tag{'type'}) . "</td>\n" .
2407               "</tr>\n";
2408         if (defined($tag{'author'})) {
2409                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2410                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2411                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2412                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2413                         "</td></tr>\n";
2414         }
2415         print "</table>\n\n" .
2416               "</div>\n";
2417         print "<div class=\"page_body\">";
2418         my $comment = $tag{'comment'};
2419         foreach my $line (@$comment) {
2420                 print esc_html($line) . "<br/>\n";
2421         }
2422         print "</div>\n";
2423         git_footer_html();
2424 }
2425
2426 sub git_blame2 {
2427         my $fd;
2428         my $ftype;
2429
2430         my ($have_blame) = gitweb_check_feature('blame');
2431         if (!$have_blame) {
2432                 die_error('403 Permission denied', "Permission denied");
2433         }
2434         die_error('404 Not Found', "File name not defined") if (!$file_name);
2435         $hash_base ||= git_get_head_hash($project);
2436         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2437         my %co = parse_commit($hash_base)
2438                 or die_error(undef, "Reading commit failed");
2439         if (!defined $hash) {
2440                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2441                         or die_error(undef, "Error looking up file");
2442         }
2443         $ftype = git_get_type($hash);
2444         if ($ftype !~ "blob") {
2445                 die_error("400 Bad Request", "Object is not a blob");
2446         }
2447         open ($fd, "-|", git_cmd(), "blame", '-l', '--', $file_name, $hash_base)
2448                 or die_error(undef, "Open git-blame failed");
2449         git_header_html();
2450         my $formats_nav =
2451                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2452                         "blob") .
2453                 " | " .
2454                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2455                         "history") .
2456                 " | " .
2457                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2458                         "HEAD");
2459         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2460         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2461         git_print_page_path($file_name, $ftype, $hash_base);
2462         my @rev_color = (qw(light2 dark2));
2463         my $num_colors = scalar(@rev_color);
2464         my $current_color = 0;
2465         my $last_rev;
2466         print <<HTML;
2467 <div class="page_body">
2468 <table class="blame">
2469 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2470 HTML
2471         while (<$fd>) {
2472                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2473                 my $full_rev = $1;
2474                 my $rev = substr($full_rev, 0, 8);
2475                 my $lineno = $2;
2476                 my $data = $3;
2477
2478                 if (!defined $last_rev) {
2479                         $last_rev = $full_rev;
2480                 } elsif ($last_rev ne $full_rev) {
2481                         $last_rev = $full_rev;
2482                         $current_color = ++$current_color % $num_colors;
2483                 }
2484                 print "<tr class=\"$rev_color[$current_color]\">\n";
2485                 print "<td class=\"sha1\">" .
2486                         $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2487                                 esc_html($rev)) . "</td>\n";
2488                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2489                       esc_html($lineno) . "</a></td>\n";
2490                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2491                 print "</tr>\n";
2492         }
2493         print "</table>\n";
2494         print "</div>";
2495         close $fd
2496                 or print "Reading blob failed\n";
2497         git_footer_html();
2498 }
2499
2500 sub git_blame {
2501         my $fd;
2502
2503         my ($have_blame) = gitweb_check_feature('blame');
2504         if (!$have_blame) {
2505                 die_error('403 Permission denied', "Permission denied");
2506         }
2507         die_error('404 Not Found', "File name not defined") if (!$file_name);
2508         $hash_base ||= git_get_head_hash($project);
2509         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2510         my %co = parse_commit($hash_base)
2511                 or die_error(undef, "Reading commit failed");
2512         if (!defined $hash) {
2513                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2514                         or die_error(undef, "Error lookup file");
2515         }
2516         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2517                 or die_error(undef, "Open git-annotate failed");
2518         git_header_html();
2519         my $formats_nav =
2520                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2521                         "blob") .
2522                 " | " .
2523                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2524                         "history") .
2525                 " | " .
2526                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2527                         "HEAD");
2528         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2529         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2530         git_print_page_path($file_name, 'blob', $hash_base);
2531         print "<div class=\"page_body\">\n";
2532         print <<HTML;
2533 <table class="blame">
2534   <tr>
2535     <th>Commit</th>
2536     <th>Age</th>
2537     <th>Author</th>
2538     <th>Line</th>
2539     <th>Data</th>
2540   </tr>
2541 HTML
2542         my @line_class = (qw(light dark));
2543         my $line_class_len = scalar (@line_class);
2544         my $line_class_num = $#line_class;
2545         while (my $line = <$fd>) {
2546                 my $long_rev;
2547                 my $short_rev;
2548                 my $author;
2549                 my $time;
2550                 my $lineno;
2551                 my $data;
2552                 my $age;
2553                 my $age_str;
2554                 my $age_class;
2555
2556                 chomp $line;
2557                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2558
2559                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2560                         $long_rev = $1;
2561                         $author   = $2;
2562                         $time     = $3;
2563                         $lineno   = $4;
2564                         $data     = $5;
2565                 } else {
2566                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2567                         next;
2568                 }
2569                 $short_rev  = substr ($long_rev, 0, 8);
2570                 $age        = time () - $time;
2571                 $age_str    = age_string ($age);
2572                 $age_str    =~ s/ /&nbsp;/g;
2573                 $age_class  = age_class($age);
2574                 $author     = esc_html ($author);
2575                 $author     =~ s/ /&nbsp;/g;
2576
2577                 $data = untabify($data);
2578                 $data = esc_html ($data);
2579
2580                 print <<HTML;
2581   <tr class="$line_class[$line_class_num]">
2582     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2583     <td class="$age_class">$age_str</td>
2584     <td>$author</td>
2585     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2586     <td class="pre">$data</td>
2587   </tr>
2588 HTML
2589         } # while (my $line = <$fd>)
2590         print "</table>\n\n";
2591         close $fd
2592                 or print "Reading blob failed.\n";
2593         print "</div>";
2594         git_footer_html();
2595 }
2596
2597 sub git_tags {
2598         my $head = git_get_head_hash($project);
2599         git_header_html();
2600         git_print_page_nav('','', $head,undef,$head);
2601         git_print_header_div('summary', $project);
2602
2603         my ($taglist) = git_get_refs_list("tags");
2604         if (@$taglist) {
2605                 git_tags_body($taglist);
2606         }
2607         git_footer_html();
2608 }
2609
2610 sub git_heads {
2611         my $head = git_get_head_hash($project);
2612         git_header_html();
2613         git_print_page_nav('','', $head,undef,$head);
2614         git_print_header_div('summary', $project);
2615
2616         my ($headlist) = git_get_refs_list("heads");
2617         if (@$headlist) {
2618                 git_heads_body($headlist, $head);
2619         }
2620         git_footer_html();
2621 }
2622
2623 sub git_blob_plain {
2624         my $expires;
2625
2626         if (!defined $hash) {
2627                 if (defined $file_name) {
2628                         my $base = $hash_base || git_get_head_hash($project);
2629                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2630                                 or die_error(undef, "Error lookup file");
2631                 } else {
2632                         die_error(undef, "No file name defined");
2633                 }
2634         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2635                 # blobs defined by non-textual hash id's can be cached
2636                 $expires = "+1d";
2637         }
2638
2639         my $type = shift;
2640         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2641                 or die_error(undef, "Couldn't cat $file_name, $hash");
2642
2643         $type ||= blob_mimetype($fd, $file_name);
2644
2645         # save as filename, even when no $file_name is given
2646         my $save_as = "$hash";
2647         if (defined $file_name) {
2648                 $save_as = $file_name;
2649         } elsif ($type =~ m/^text\//) {
2650                 $save_as .= '.txt';
2651         }
2652
2653         print $cgi->header(
2654                 -type => "$type",
2655                 -expires=>$expires,
2656                 -content_disposition => 'inline; filename="' . quotemeta($save_as) . '"');
2657         undef $/;
2658         binmode STDOUT, ':raw';
2659         print <$fd>;
2660         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2661         $/ = "\n";
2662         close $fd;
2663 }
2664
2665 sub git_blob {
2666         my $expires;
2667
2668         if (!defined $hash) {
2669                 if (defined $file_name) {
2670                         my $base = $hash_base || git_get_head_hash($project);
2671                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2672                                 or die_error(undef, "Error lookup file");
2673                 } else {
2674                         die_error(undef, "No file name defined");
2675                 }
2676         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2677                 # blobs defined by non-textual hash id's can be cached
2678                 $expires = "+1d";
2679         }
2680
2681         my ($have_blame) = gitweb_check_feature('blame');
2682         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2683                 or die_error(undef, "Couldn't cat $file_name, $hash");
2684         my $mimetype = blob_mimetype($fd, $file_name);
2685         if ($mimetype !~ m/^text\//) {
2686                 close $fd;
2687                 return git_blob_plain($mimetype);
2688         }
2689         git_header_html(undef, $expires);
2690         my $formats_nav = '';
2691         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2692                 if (defined $file_name) {
2693                         if ($have_blame) {
2694                                 $formats_nav .=
2695                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2696                                                                hash=>$hash, file_name=>$file_name)},
2697                                                 "blame") .
2698                                         " | ";
2699                         }
2700                         $formats_nav .=
2701                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2702                                                        hash=>$hash, file_name=>$file_name)},
2703                                         "history") .
2704                                 " | " .
2705                                 $cgi->a({-href => href(action=>"blob_plain",
2706                                                        hash=>$hash, file_name=>$file_name)},
2707                                         "raw") .
2708                                 " | " .
2709                                 $cgi->a({-href => href(action=>"blob",
2710                                                        hash_base=>"HEAD", file_name=>$file_name)},
2711                                         "HEAD");
2712                 } else {
2713                         $formats_nav .=
2714                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2715                 }
2716                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2717                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2718         } else {
2719                 print "<div class=\"page_nav\">\n" .
2720                       "<br/><br/></div>\n" .
2721                       "<div class=\"title\">$hash</div>\n";
2722         }
2723         git_print_page_path($file_name, "blob", $hash_base);
2724         print "<div class=\"page_body\">\n";
2725         my $nr;
2726         while (my $line = <$fd>) {
2727                 chomp $line;
2728                 $nr++;
2729                 $line = untabify($line);
2730                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2731                        $nr, $nr, $nr, esc_html($line);
2732         }
2733         close $fd
2734                 or print "Reading blob failed.\n";
2735         print "</div>";
2736         git_footer_html();
2737 }
2738
2739 sub git_tree {
2740         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2741         my $have_snapshot = (defined $ctype && defined $suffix);
2742
2743         if (!defined $hash) {
2744                 $hash = git_get_head_hash($project);
2745                 if (defined $file_name) {
2746                         my $base = $hash_base || $hash;
2747                         $hash = git_get_hash_by_path($base, $file_name, "tree");
2748                 }
2749                 if (!defined $hash_base) {
2750                         $hash_base = $hash;
2751                 }
2752         }
2753         $/ = "\0";
2754         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2755                 or die_error(undef, "Open git-ls-tree failed");
2756         my @entries = map { chomp; $_ } <$fd>;
2757         close $fd or die_error(undef, "Reading tree failed");
2758         $/ = "\n";
2759
2760         my $refs = git_get_references();
2761         my $ref = format_ref_marker($refs, $hash_base);
2762         git_header_html();
2763         my $base = "";
2764         my ($have_blame) = gitweb_check_feature('blame');
2765         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2766                 my @views_nav = ();
2767                 if (defined $file_name) {
2768                         push @views_nav,
2769                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2770                                                        hash=>$hash, file_name=>$file_name)},
2771                                         "history"),
2772                                 $cgi->a({-href => href(action=>"tree",
2773                                                        hash_base=>"HEAD", file_name=>$file_name)},
2774                                         "HEAD"),
2775                 }
2776                 if ($have_snapshot) {
2777                         # FIXME: Should be available when we have no hash base as well.
2778                         push @views_nav,
2779                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2780                                         "snapshot");
2781                 }
2782                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2783                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2784         } else {
2785                 undef $hash_base;
2786                 print "<div class=\"page_nav\">\n";
2787                 print "<br/><br/></div>\n";
2788                 print "<div class=\"title\">$hash</div>\n";
2789         }
2790         if (defined $file_name) {
2791                 $base = esc_html("$file_name/");
2792         }
2793         git_print_page_path($file_name, 'tree', $hash_base);
2794         print "<div class=\"page_body\">\n";
2795         print "<table cellspacing=\"0\">\n";
2796         my $alternate = 0;
2797         foreach my $line (@entries) {
2798                 my %t = parse_ls_tree_line($line, -z => 1);
2799
2800                 if ($alternate) {
2801                         print "<tr class=\"dark\">\n";
2802                 } else {
2803                         print "<tr class=\"light\">\n";
2804                 }
2805                 $alternate ^= 1;
2806
2807                 git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2808
2809                 print "</tr>\n";
2810         }
2811         print "</table>\n" .
2812               "</div>";
2813         git_footer_html();
2814 }
2815
2816 sub git_snapshot {
2817
2818         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2819         my $have_snapshot = (defined $ctype && defined $suffix);
2820         if (!$have_snapshot) {
2821                 die_error('403 Permission denied', "Permission denied");
2822         }
2823
2824         if (!defined $hash) {
2825                 $hash = git_get_head_hash($project);
2826         }
2827
2828         my $filename = basename($project) . "-$hash.tar.$suffix";
2829
2830         print $cgi->header(
2831                 -type => 'application/x-tar',
2832                 -content_encoding => $ctype,
2833                 -content_disposition => 'inline; filename="' . quotemeta($filename) . '"',
2834                 -status => '200 OK');
2835
2836         my $git_command = git_cmd_str();
2837         open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2838                 die_error(undef, "Execute git-tar-tree failed.");
2839         binmode STDOUT, ':raw';
2840         print <$fd>;
2841         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2842         close $fd;
2843
2844 }
2845
2846 sub git_log {
2847         my $head = git_get_head_hash($project);
2848         if (!defined $hash) {
2849                 $hash = $head;
2850         }
2851         if (!defined $page) {
2852                 $page = 0;
2853         }
2854         my $refs = git_get_references();
2855
2856         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2857         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2858                 or die_error(undef, "Open git-rev-list failed");
2859         my @revlist = map { chomp; $_ } <$fd>;
2860         close $fd;
2861
2862         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2863
2864         git_header_html();
2865         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2866
2867         if (!@revlist) {
2868                 my %co = parse_commit($hash);
2869
2870                 git_print_header_div('summary', $project);
2871                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2872         }
2873         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2874                 my $commit = $revlist[$i];
2875                 my $ref = format_ref_marker($refs, $commit);
2876                 my %co = parse_commit($commit);
2877                 next if !%co;
2878                 my %ad = parse_date($co{'author_epoch'});
2879                 git_print_header_div('commit',
2880                                "<span class=\"age\">$co{'age_string'}</span>" .
2881                                esc_html($co{'title'}) . $ref,
2882                                $commit);
2883                 print "<div class=\"title_text\">\n" .
2884                       "<div class=\"log_link\">\n" .
2885                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2886                       " | " .
2887                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2888                       " | " .
2889                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
2890                       "<br/>\n" .
2891                       "</div>\n" .
2892                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2893                       "</div>\n";
2894
2895                 print "<div class=\"log_body\">\n";
2896                 git_print_simplified_log($co{'comment'});
2897                 print "</div>\n";
2898         }
2899         git_footer_html();
2900 }
2901
2902 sub git_commit {
2903         my %co = parse_commit($hash);
2904         if (!%co) {
2905                 die_error(undef, "Unknown commit object");
2906         }
2907         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2908         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2909
2910         my $parent = $co{'parent'};
2911         if (!defined $parent) {
2912                 $parent = "--root";
2913         }
2914         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2915                 or die_error(undef, "Open git-diff-tree failed");
2916         my @difftree = map { chomp; $_ } <$fd>;
2917         close $fd or die_error(undef, "Reading git-diff-tree failed");
2918
2919         # non-textual hash id's can be cached
2920         my $expires;
2921         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2922                 $expires = "+1d";
2923         }
2924         my $refs = git_get_references();
2925         my $ref = format_ref_marker($refs, $co{'id'});
2926
2927         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2928         my $have_snapshot = (defined $ctype && defined $suffix);
2929
2930         my @views_nav = ();
2931         if (defined $file_name && defined $co{'parent'}) {
2932                 my $parent = $co{'parent'};
2933                 push @views_nav,
2934                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2935                                 "blame");
2936         }
2937         if (defined $co{'parent'}) {
2938                 push @views_nav,
2939                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash)}, "shortlog"),
2940                         $cgi->a({-href => href(action=>"log", hash=>$hash)}, "log");
2941         }
2942         git_header_html(undef, $expires);
2943         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2944                            $hash, $co{'tree'}, $hash,
2945                            join (' | ', @views_nav));
2946
2947         if (defined $co{'parent'}) {
2948                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2949         } else {
2950                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2951         }
2952         print "<div class=\"title_text\">\n" .
2953               "<table cellspacing=\"0\">\n";
2954         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2955               "<tr>" .
2956               "<td></td><td> $ad{'rfc2822'}";
2957         if ($ad{'hour_local'} < 6) {
2958                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2959                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2960         } else {
2961                 printf(" (%02d:%02d %s)",
2962                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2963         }
2964         print "</td>" .
2965               "</tr>\n";
2966         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2967         print "<tr><td></td><td> $cd{'rfc2822'}" .
2968               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2969               "</td></tr>\n";
2970         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2971         print "<tr>" .
2972               "<td>tree</td>" .
2973               "<td class=\"sha1\">" .
2974               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2975                        class => "list"}, $co{'tree'}) .
2976               "</td>" .
2977               "<td class=\"link\">" .
2978               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2979                       "tree");
2980         if ($have_snapshot) {
2981                 print " | " .
2982                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2983         }
2984         print "</td>" .
2985               "</tr>\n";
2986         my $parents = $co{'parents'};
2987         foreach my $par (@$parents) {
2988                 print "<tr>" .
2989                       "<td>parent</td>" .
2990                       "<td class=\"sha1\">" .
2991                       $cgi->a({-href => href(action=>"commit", hash=>$par),
2992                                class => "list"}, $par) .
2993                       "</td>" .
2994                       "<td class=\"link\">" .
2995                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2996                       " | " .
2997                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
2998                       "</td>" .
2999                       "</tr>\n";
3000         }
3001         print "</table>".
3002               "</div>\n";
3003
3004         print "<div class=\"page_body\">\n";
3005         git_print_log($co{'comment'});
3006         print "</div>\n";
3007
3008         git_difftree_body(\@difftree, $hash, $parent);
3009
3010         git_footer_html();
3011 }
3012
3013 sub git_blobdiff {
3014         my $format = shift || 'html';
3015
3016         my $fd;
3017         my @difftree;
3018         my %diffinfo;
3019         my $expires;
3020
3021         # preparing $fd and %diffinfo for git_patchset_body
3022         # new style URI
3023         if (defined $hash_base && defined $hash_parent_base) {
3024                 if (defined $file_name) {
3025                         # read raw output
3026                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3027                                 "--", $file_name
3028                                 or die_error(undef, "Open git-diff-tree failed");
3029                         @difftree = map { chomp; $_ } <$fd>;
3030                         close $fd
3031                                 or die_error(undef, "Reading git-diff-tree failed");
3032                         @difftree
3033                                 or die_error('404 Not Found', "Blob diff not found");
3034
3035                 } elsif (defined $hash &&
3036                          $hash =~ /[0-9a-fA-F]{40}/) {
3037                         # try to find filename from $hash
3038
3039                         # read filtered raw output
3040                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3041                                 or die_error(undef, "Open git-diff-tree failed");
3042                         @difftree =
3043                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3044                                 # $hash == to_id
3045                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3046                                 map { chomp; $_ } <$fd>;
3047                         close $fd
3048                                 or die_error(undef, "Reading git-diff-tree failed");
3049                         @difftree
3050                                 or die_error('404 Not Found', "Blob diff not found");
3051
3052                 } else {
3053                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3054                 }
3055
3056                 if (@difftree > 1) {
3057                         die_error('404 Not Found', "Ambiguous blob diff specification");
3058                 }
3059
3060                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3061                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3062                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3063
3064                 $hash_parent ||= $diffinfo{'from_id'};
3065                 $hash        ||= $diffinfo{'to_id'};
3066
3067                 # non-textual hash id's can be cached
3068                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3069                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3070                         $expires = '+1d';
3071                 }
3072
3073                 # open patch output
3074                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3075                         '-p', $hash_parent_base, $hash_base,
3076                         "--", $file_name
3077                         or die_error(undef, "Open git-diff-tree failed");
3078         }
3079
3080         # old/legacy style URI
3081         if (!%diffinfo && # if new style URI failed
3082             defined $hash && defined $hash_parent) {
3083                 # fake git-diff-tree raw output
3084                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3085                 $diffinfo{'from_id'} = $hash_parent;
3086                 $diffinfo{'to_id'}   = $hash;
3087                 if (defined $file_name) {
3088                         if (defined $file_parent) {
3089                                 $diffinfo{'status'} = '2';
3090                                 $diffinfo{'from_file'} = $file_parent;
3091                                 $diffinfo{'to_file'}   = $file_name;
3092                         } else { # assume not renamed
3093                                 $diffinfo{'status'} = '1';
3094                                 $diffinfo{'from_file'} = $file_name;
3095                                 $diffinfo{'to_file'}   = $file_name;
3096                         }
3097                 } else { # no filename given
3098                         $diffinfo{'status'} = '2';
3099                         $diffinfo{'from_file'} = $hash_parent;
3100                         $diffinfo{'to_file'}   = $hash;
3101                 }
3102
3103                 # non-textual hash id's can be cached
3104                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3105                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3106                         $expires = '+1d';
3107                 }
3108
3109                 # open patch output
3110                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3111                         or die_error(undef, "Open git-diff failed");
3112         } else  {
3113                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3114                         unless %diffinfo;
3115         }
3116
3117         # header
3118         if ($format eq 'html') {
3119                 my $formats_nav =
3120                         $cgi->a({-href => href(action=>"blobdiff_plain",
3121                                                hash=>$hash, hash_parent=>$hash_parent,
3122                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3123                                                file_name=>$file_name, file_parent=>$file_parent)},
3124                                 "raw");
3125                 git_header_html(undef, $expires);
3126                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3127                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3128                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3129                 } else {
3130                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3131                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3132                 }
3133                 if (defined $file_name) {
3134                         git_print_page_path($file_name, "blob", $hash_base);
3135                 } else {
3136                         print "<div class=\"page_path\"></div>\n";
3137                 }
3138
3139         } elsif ($format eq 'plain') {
3140                 print $cgi->header(
3141                         -type => 'text/plain',
3142                         -charset => 'utf-8',
3143                         -expires => $expires,
3144                         -content_disposition => 'inline; filename="' . quotemeta($file_name) . '.patch"');
3145
3146                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3147
3148         } else {
3149                 die_error(undef, "Unknown blobdiff format");
3150         }
3151
3152         # patch
3153         if ($format eq 'html') {
3154                 print "<div class=\"page_body\">\n";
3155
3156                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3157                 close $fd;
3158
3159                 print "</div>\n"; # class="page_body"
3160                 git_footer_html();
3161
3162         } else {
3163                 while (my $line = <$fd>) {
3164                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3165                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3166
3167                         print $line;
3168
3169                         last if $line =~ m!^\+\+\+!;
3170                 }
3171                 local $/ = undef;
3172                 print <$fd>;
3173                 close $fd;
3174         }
3175 }
3176
3177 sub git_blobdiff_plain {
3178         git_blobdiff('plain');
3179 }
3180
3181 sub git_commitdiff {
3182         my $format = shift || 'html';
3183         my %co = parse_commit($hash);
3184         if (!%co) {
3185                 die_error(undef, "Unknown commit object");
3186         }
3187         if (!defined $hash_parent) {
3188                 $hash_parent = $co{'parent'} || '--root';
3189         }
3190
3191         # read commitdiff
3192         my $fd;
3193         my @difftree;
3194         if ($format eq 'html') {
3195                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3196                         "--patch-with-raw", "--full-index", $hash_parent, $hash
3197                         or die_error(undef, "Open git-diff-tree failed");
3198
3199                 while (chomp(my $line = <$fd>)) {
3200                         # empty line ends raw part of diff-tree output
3201                         last unless $line;
3202                         push @difftree, $line;
3203                 }
3204
3205         } elsif ($format eq 'plain') {
3206                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3207                         '-p', $hash_parent, $hash
3208                         or die_error(undef, "Open git-diff-tree failed");
3209
3210         } else {
3211                 die_error(undef, "Unknown commitdiff format");
3212         }
3213
3214         # non-textual hash id's can be cached
3215         my $expires;
3216         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3217                 $expires = "+1d";
3218         }
3219
3220         # write commit message
3221         if ($format eq 'html') {
3222                 my $refs = git_get_references();
3223                 my $ref = format_ref_marker($refs, $co{'id'});
3224                 my $formats_nav =
3225                         $cgi->a({-href => href(action=>"commitdiff_plain",
3226                                                hash=>$hash, hash_parent=>$hash_parent)},
3227                                 "raw");
3228
3229                 git_header_html(undef, $expires);
3230                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3231                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3232                 git_print_authorship(\%co);
3233                 print "<div class=\"page_body\">\n";
3234                 print "<div class=\"log\">\n";
3235                 git_print_simplified_log($co{'comment'}, 1); # skip title
3236                 print "</div>\n"; # class="log"
3237
3238         } elsif ($format eq 'plain') {
3239                 my $refs = git_get_references("tags");
3240                 my $tagname = git_get_rev_name_tags($hash);
3241                 my $filename = basename($project) . "-$hash.patch";
3242
3243                 print $cgi->header(
3244                         -type => 'text/plain',
3245                         -charset => 'utf-8',
3246                         -expires => $expires,
3247                         -content_disposition => 'inline; filename="' . quotemeta($filename) . '"');
3248                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3249                 print <<TEXT;
3250 From: $co{'author'}
3251 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3252 Subject: $co{'title'}
3253 TEXT
3254                 print "X-Git-Tag: $tagname\n" if $tagname;
3255                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3256
3257                 foreach my $line (@{$co{'comment'}}) {
3258                         print "$line\n";
3259                 }
3260                 print "---\n\n";
3261         }
3262
3263         # write patch
3264         if ($format eq 'html') {
3265                 git_difftree_body(\@difftree, $hash, $hash_parent);
3266                 print "<br/>\n";
3267
3268                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3269                 close $fd;
3270                 print "</div>\n"; # class="page_body"
3271                 git_footer_html();
3272
3273         } elsif ($format eq 'plain') {
3274                 local $/ = undef;
3275                 print <$fd>;
3276                 close $fd
3277                         or print "Reading git-diff-tree failed\n";
3278         }
3279 }
3280
3281 sub git_commitdiff_plain {
3282         git_commitdiff('plain');
3283 }
3284
3285 sub git_history {
3286         if (!defined $hash_base) {
3287                 $hash_base = git_get_head_hash($project);
3288         }
3289         if (!defined $page) {
3290                 $page = 0;
3291         }
3292         my $ftype;
3293         my %co = parse_commit($hash_base);
3294         if (!%co) {
3295                 die_error(undef, "Unknown commit object");
3296         }
3297
3298         my $refs = git_get_references();
3299         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3300
3301         if (!defined $hash && defined $file_name) {
3302                 $hash = git_get_hash_by_path($hash_base, $file_name);
3303         }
3304         if (defined $hash) {
3305                 $ftype = git_get_type($hash);
3306         }
3307
3308         open my $fd, "-|",
3309                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3310                         or die_error(undef, "Open git-rev-list-failed");
3311         my @revlist = map { chomp; $_ } <$fd>;
3312         close $fd
3313                 or die_error(undef, "Reading git-rev-list failed");
3314
3315         my $paging_nav = '';
3316         if ($page > 0) {
3317                 $paging_nav .=
3318                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3319                                                file_name=>$file_name)},
3320                                 "first");
3321                 $paging_nav .= " &sdot; " .
3322                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3323                                                file_name=>$file_name, page=>$page-1),
3324                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3325         } else {
3326                 $paging_nav .= "first";
3327                 $paging_nav .= " &sdot; prev";
3328         }
3329         if ($#revlist >= (100 * ($page+1)-1)) {
3330                 $paging_nav .= " &sdot; " .
3331                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3332                                                file_name=>$file_name, page=>$page+1),
3333                                  -accesskey => "n", -title => "Alt-n"}, "next");
3334         } else {
3335                 $paging_nav .= " &sdot; next";
3336         }
3337         my $next_link = '';
3338         if ($#revlist >= (100 * ($page+1)-1)) {
3339                 $next_link =
3340                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3341                                                file_name=>$file_name, page=>$page+1),
3342                                  -title => "Alt-n"}, "next");
3343         }
3344
3345         git_header_html();
3346         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3347         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3348         git_print_page_path($file_name, $ftype, $hash_base);
3349
3350         git_history_body(\@revlist, ($page * 100), $#revlist,
3351                          $refs, $hash_base, $ftype, $next_link);
3352
3353         git_footer_html();
3354 }
3355
3356 sub git_search {
3357         if (!defined $searchtext) {
3358                 die_error(undef, "Text field empty");
3359         }
3360         if (!defined $hash) {
3361                 $hash = git_get_head_hash($project);
3362         }
3363         my %co = parse_commit($hash);
3364         if (!%co) {
3365                 die_error(undef, "Unknown commit object");
3366         }
3367
3368         my $commit_search = 1;
3369         my $author_search = 0;
3370         my $committer_search = 0;
3371         my $pickaxe_search = 0;
3372         if ($searchtext =~ s/^author\\://i) {
3373                 $author_search = 1;
3374         } elsif ($searchtext =~ s/^committer\\://i) {
3375                 $committer_search = 1;
3376         } elsif ($searchtext =~ s/^pickaxe\\://i) {
3377                 $commit_search = 0;
3378                 $pickaxe_search = 1;
3379
3380                 # pickaxe may take all resources of your box and run for several minutes
3381                 # with every query - so decide by yourself how public you make this feature
3382                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3383                 if (!$have_pickaxe) {
3384                         die_error('403 Permission denied', "Permission denied");
3385                 }
3386         }
3387         git_header_html();
3388         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3389         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3390
3391         print "<table cellspacing=\"0\">\n";
3392         my $alternate = 0;
3393         if ($commit_search) {
3394                 $/ = "\0";
3395                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3396                 while (my $commit_text = <$fd>) {
3397                         if (!grep m/$searchtext/i, $commit_text) {
3398                                 next;
3399                         }
3400                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3401                                 next;
3402                         }
3403                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3404                                 next;
3405                         }
3406                         my @commit_lines = split "\n", $commit_text;
3407                         my %co = parse_commit(undef, \@commit_lines);
3408                         if (!%co) {
3409                                 next;
3410                         }
3411                         if ($alternate) {
3412                                 print "<tr class=\"dark\">\n";
3413                         } else {
3414                                 print "<tr class=\"light\">\n";
3415                         }
3416                         $alternate ^= 1;
3417                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3418                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3419                               "<td>" .
3420                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3421                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3422                         my $comment = $co{'comment'};
3423                         foreach my $line (@$comment) {
3424                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3425                                         my $lead = esc_html($1) || "";
3426                                         $lead = chop_str($lead, 30, 10);
3427                                         my $match = esc_html($2) || "";
3428                                         my $trail = esc_html($3) || "";
3429                                         $trail = chop_str($trail, 30, 10);
3430                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3431                                         print chop_str($text, 80, 5) . "<br/>\n";
3432                                 }
3433                         }
3434                         print "</td>\n" .
3435                               "<td class=\"link\">" .
3436                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3437                               " | " .
3438                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3439                         print "</td>\n" .
3440                               "</tr>\n";
3441                 }
3442                 close $fd;
3443         }
3444
3445         if ($pickaxe_search) {
3446                 $/ = "\n";
3447                 my $git_command = git_cmd_str();
3448                 open my $fd, "-|", "$git_command rev-list $hash | " .
3449                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3450                 undef %co;
3451                 my @files;
3452                 while (my $line = <$fd>) {
3453                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3454                                 my %set;
3455                                 $set{'file'} = $6;
3456                                 $set{'from_id'} = $3;
3457                                 $set{'to_id'} = $4;
3458                                 $set{'id'} = $set{'to_id'};
3459                                 if ($set{'id'} =~ m/0{40}/) {
3460                                         $set{'id'} = $set{'from_id'};
3461                                 }
3462                                 if ($set{'id'} =~ m/0{40}/) {
3463                                         next;
3464                                 }
3465                                 push @files, \%set;
3466                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3467                                 if (%co) {
3468                                         if ($alternate) {
3469                                                 print "<tr class=\"dark\">\n";
3470                                         } else {
3471                                                 print "<tr class=\"light\">\n";
3472                                         }
3473                                         $alternate ^= 1;
3474                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3475                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3476                                               "<td>" .
3477                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3478                                                       -class => "list subject"},
3479                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3480                                         while (my $setref = shift @files) {
3481                                                 my %set = %$setref;
3482                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3483                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3484                                                               -class => "list"},
3485                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3486                                                       "<br/>\n";
3487                                         }
3488                                         print "</td>\n" .
3489                                               "<td class=\"link\">" .
3490                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3491                                               " | " .
3492                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3493                                         print "</td>\n" .
3494                                               "</tr>\n";
3495                                 }
3496                                 %co = parse_commit($1);
3497                         }
3498                 }
3499                 close $fd;
3500         }
3501         print "</table>\n";
3502         git_footer_html();
3503 }
3504
3505 sub git_shortlog {
3506         my $head = git_get_head_hash($project);
3507         if (!defined $hash) {
3508                 $hash = $head;
3509         }
3510         if (!defined $page) {
3511                 $page = 0;
3512         }
3513         my $refs = git_get_references();
3514
3515         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3516         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3517                 or die_error(undef, "Open git-rev-list failed");
3518         my @revlist = map { chomp; $_ } <$fd>;
3519         close $fd;
3520
3521         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3522         my $next_link = '';
3523         if ($#revlist >= (100 * ($page+1)-1)) {
3524                 $next_link =
3525                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3526                                  -title => "Alt-n"}, "next");
3527         }
3528
3529
3530         git_header_html();
3531         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3532         git_print_header_div('summary', $project);
3533
3534         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3535
3536         git_footer_html();
3537 }
3538
3539 ## ......................................................................
3540 ## feeds (RSS, OPML)
3541
3542 sub git_rss {
3543         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3544         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3545                 or die_error(undef, "Open git-rev-list failed");
3546         my @revlist = map { chomp; $_ } <$fd>;
3547         close $fd or die_error(undef, "Reading git-rev-list failed");
3548         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3549         print <<XML;
3550 <?xml version="1.0" encoding="utf-8"?>
3551 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3552 <channel>
3553 <title>$project $my_uri $my_url</title>
3554 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3555 <description>$project log</description>
3556 <language>en</language>
3557 XML
3558
3559         for (my $i = 0; $i <= $#revlist; $i++) {
3560                 my $commit = $revlist[$i];
3561                 my %co = parse_commit($commit);
3562                 # we read 150, we always show 30 and the ones more recent than 48 hours
3563                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3564                         last;
3565                 }
3566                 my %cd = parse_date($co{'committer_epoch'});
3567                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3568                         $co{'parent'}, $co{'id'}
3569                         or next;
3570                 my @difftree = map { chomp; $_ } <$fd>;
3571                 close $fd
3572                         or next;
3573                 print "<item>\n" .
3574                       "<title>" .
3575                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3576                       "</title>\n" .
3577                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3578                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3579                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3580                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3581                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3582                       "<content:encoded>" .
3583                       "<![CDATA[\n";
3584                 my $comment = $co{'comment'};
3585                 foreach my $line (@$comment) {
3586                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
3587                         print "$line<br/>\n";
3588                 }
3589                 print "<br/>\n";
3590                 foreach my $line (@difftree) {
3591                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3592                                 next;
3593                         }
3594                         my $file = esc_html(unquote($7));
3595                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
3596                         print "$file<br/>\n";
3597                 }
3598                 print "]]>\n" .
3599                       "</content:encoded>\n" .
3600                       "</item>\n";
3601         }
3602         print "</channel></rss>";
3603 }
3604
3605 sub git_opml {
3606         my @list = git_get_projects_list();
3607
3608         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3609         print <<XML;
3610 <?xml version="1.0" encoding="utf-8"?>
3611 <opml version="1.0">
3612 <head>
3613   <title>$site_name Git OPML Export</title>
3614 </head>
3615 <body>
3616 <outline text="git RSS feeds">
3617 XML
3618
3619         foreach my $pr (@list) {
3620                 my %proj = %$pr;
3621                 my $head = git_get_head_hash($proj{'path'});
3622                 if (!defined $head) {
3623                         next;
3624                 }
3625                 $git_dir = "$projectroot/$proj{'path'}";
3626                 my %co = parse_commit($head);
3627                 if (!%co) {
3628                         next;
3629                 }
3630
3631                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3632                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3633                 my $html = "$my_url?p=$proj{'path'};a=summary";
3634                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3635         }
3636         print <<XML;
3637 </outline>
3638 </body>
3639 </opml>
3640 XML
3641 }