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