Lady’s Gitweb - Gitweb/blob - gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40 # name of your site or organization to appear in page titles
  41 # replace this with something more descriptive for clearer bookmarks
  42 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44 # html text to include at home page
  45 our $home_text = "++GITWEB_HOMETEXT++";
  46
  47 # URI of default stylesheet
  48 our $stylesheet = "++GITWEB_CSS++";
  49 # URI of GIT logo
  50 our $logo = "++GITWEB_LOGO++";
  51 # URI of GIT favicon, assumed to be image/png type
  52 our $favicon = "++GITWEB_FAVICON++";
  53
  54 # source of projects list
  55 our $projects_list = "++GITWEB_LIST++";
  56
  57 # show repository only if this file exists
  58 # (only effective if this variable evaluates to true)
  59 our $export_ok = "++GITWEB_EXPORT_OK++";
  60
  61 # only allow viewing of repositories also shown on the overview page
  62 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  63
  64 # list of git base URLs used for URL to where fetch project from,
  65 # i.e. full URL is "$git_base_url/$project"
  66 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  67
  68 # default blob_plain mimetype and default charset for text/plain blob
  69 our $default_blob_plain_mimetype = 'text/plain';
  70 our $default_text_plain_charset  = undef;
  71
  72 # file to use for guessing MIME types before trying /etc/mime.types
  73 # (relative to the current git repository)
  74 our $mimetypes_file = undef;
  75
  76 # You define site-wide feature defaults here; override them with
  77 # $GITWEB_CONFIG as necessary.
  78 our %feature = (
  79         # feature => {
  80         #       'sub' => feature-sub (subroutine),
  81         #       'override' => allow-override (boolean),
  82         #       'default' => [ default options...] (array reference)}
  83         #
  84         # if feature is overridable (it means that allow-override has true value,
  85         # then feature-sub will be called with default options as parameters;
  86         # return value of feature-sub indicates if to enable specified feature
  87         #
  88         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  89
  90         'blame' => {
  91                 'sub' => \&feature_blame,
  92                 'override' => 0,
  93                 'default' => [0]},
  94
  95         'snapshot' => {
  96                 'sub' => \&feature_snapshot,
  97                 'override' => 0,
  98                 #         => [content-encoding, suffix, program]
  99                 'default' => ['x-gzip', 'gz', 'gzip']},
 100
 101         'pickaxe' => {
 102                 'sub' => \&feature_pickaxe,
 103                 'override' => 0,
 104                 'default' => [1]},
 105
 106         'pathinfo' => {
 107                 'override' => 0,
 108                 'default' => [0]},
 109 );
 110
 111 sub gitweb_check_feature {
 112         my ($name) = @_;
 113         return unless exists $feature{$name};
 114         my ($sub, $override, @defaults) = (
 115                 $feature{$name}{'sub'},
 116                 $feature{$name}{'override'},
 117                 @{$feature{$name}{'default'}});
 118         if (!$override) { return @defaults; }
 119         return $sub->(@defaults);
 120 }
 121
 122 # To enable system wide have in $GITWEB_CONFIG
 123 # $feature{'blame'}{'default'} = [1];
 124 # To have project specific config enable override in $GITWEB_CONFIG
 125 # $feature{'blame'}{'override'} = 1;
 126 # and in project config gitweb.blame = 0|1;
 127
 128 sub feature_blame {
 129         my ($val) = git_get_project_config('blame', '--bool');
 130
 131         if ($val eq 'true') {
 132                 return 1;
 133         } elsif ($val eq 'false') {
 134                 return 0;
 135         }
 136
 137         return $_[0];
 138 }
 139
 140 # To disable system wide have in $GITWEB_CONFIG
 141 # $feature{'snapshot'}{'default'} = [undef];
 142 # To have project specific config enable override in $GITWEB_CONFIG
 143 # $feature{'blame'}{'override'} = 1;
 144 # and in project config  gitweb.snapshot = none|gzip|bzip2
 145
 146 sub feature_snapshot {
 147         my ($ctype, $suffix, $command) = @_;
 148
 149         my ($val) = git_get_project_config('snapshot');
 150
 151         if ($val eq 'gzip') {
 152                 return ('x-gzip', 'gz', 'gzip');
 153         } elsif ($val eq 'bzip2') {
 154                 return ('x-bzip2', 'bz2', 'bzip2');
 155         } elsif ($val eq 'none') {
 156                 return ();
 157         }
 158
 159         return ($ctype, $suffix, $command);
 160 }
 161
 162 sub gitweb_have_snapshot {
 163         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 164         my $have_snapshot = (defined $ctype && defined $suffix);
 165
 166         return $have_snapshot;
 167 }
 168
 169 # To enable system wide have in $GITWEB_CONFIG
 170 # $feature{'pickaxe'}{'default'} = [1];
 171 # To have project specific config enable override in $GITWEB_CONFIG
 172 # $feature{'pickaxe'}{'override'} = 1;
 173 # and in project config gitweb.pickaxe = 0|1;
 174
 175 sub feature_pickaxe {
 176         my ($val) = git_get_project_config('pickaxe', '--bool');
 177
 178         if ($val eq 'true') {
 179                 return (1);
 180         } elsif ($val eq 'false') {
 181                 return (0);
 182         }
 183
 184         return ($_[0]);
 185 }
 186
 187 # rename detection options for git-diff and git-diff-tree
 188 # - default is '-M', with the cost proportional to
 189 #   (number of removed files) * (number of new files).
 190 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 191 #   (number of changed files + number of removed files) * (number of new files)
 192 # - even more costly is '-C', '--find-copies-harder' with cost
 193 #   (number of files in the original tree) * (number of new files)
 194 # - one might want to include '-B' option, e.g. '-B', '-M'
 195 our @diff_opts = ('-M'); # taken from git_commit
 196
 197 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 198 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 199
 200 # version of the core git binary
 201 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 202
 203 $projects_list ||= $projectroot;
 204
 205 # ======================================================================
 206 # input validation and dispatch
 207 our $action = $cgi->param('a');
 208 if (defined $action) {
 209         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 210                 die_error(undef, "Invalid action parameter");
 211         }
 212 }
 213
 214 # parameters which are pathnames
 215 our $project = $cgi->param('p');
 216 if (defined $project) {
 217         if (!validate_pathname($project) ||
 218             !(-d "$projectroot/$project") ||
 219             !(-e "$projectroot/$project/HEAD") ||
 220             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 221             ($strict_export && !project_in_list($project))) {
 222                 undef $project;
 223                 die_error(undef, "No such project");
 224         }
 225 }
 226
 227 our $file_name = $cgi->param('f');
 228 if (defined $file_name) {
 229         if (!validate_pathname($file_name)) {
 230                 die_error(undef, "Invalid file parameter");
 231         }
 232 }
 233
 234 our $file_parent = $cgi->param('fp');
 235 if (defined $file_parent) {
 236         if (!validate_pathname($file_parent)) {
 237                 die_error(undef, "Invalid file parent parameter");
 238         }
 239 }
 240
 241 # parameters which are refnames
 242 our $hash = $cgi->param('h');
 243 if (defined $hash) {
 244         if (!validate_refname($hash)) {
 245                 die_error(undef, "Invalid hash parameter");
 246         }
 247 }
 248
 249 our $hash_parent = $cgi->param('hp');
 250 if (defined $hash_parent) {
 251         if (!validate_refname($hash_parent)) {
 252                 die_error(undef, "Invalid hash parent parameter");
 253         }
 254 }
 255
 256 our $hash_base = $cgi->param('hb');
 257 if (defined $hash_base) {
 258         if (!validate_refname($hash_base)) {
 259                 die_error(undef, "Invalid hash base parameter");
 260         }
 261 }
 262
 263 our $hash_parent_base = $cgi->param('hpb');
 264 if (defined $hash_parent_base) {
 265         if (!validate_refname($hash_parent_base)) {
 266                 die_error(undef, "Invalid hash parent base parameter");
 267         }
 268 }
 269
 270 # other parameters
 271 our $page = $cgi->param('pg');
 272 if (defined $page) {
 273         if ($page =~ m/[^0-9]/) {
 274                 die_error(undef, "Invalid page parameter");
 275         }
 276 }
 277
 278 our $searchtext = $cgi->param('s');
 279 if (defined $searchtext) {
 280         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 281                 die_error(undef, "Invalid search parameter");
 282         }
 283         $searchtext = quotemeta $searchtext;
 284 }
 285
 286 # now read PATH_INFO and use it as alternative to parameters
 287 sub evaluate_path_info {
 288         return if defined $project;
 289         my $path_info = $ENV{"PATH_INFO"};
 290         return if !$path_info;
 291         $path_info =~ s,^/+,,;
 292         return if !$path_info;
 293         # find which part of PATH_INFO is project
 294         $project = $path_info;
 295         $project =~ s,/+$,,;
 296         while ($project && !-e "$projectroot/$project/HEAD") {
 297                 $project =~ s,/*[^/]*$,,;
 298         }
 299         # validate project
 300         $project = validate_pathname($project);
 301         if (!$project ||
 302             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 303             ($strict_export && !project_in_list($project))) {
 304                 undef $project;
 305                 return;
 306         }
 307         # do not change any parameters if an action is given using the query string
 308         return if $action;
 309         $path_info =~ s,^$project/*,,;
 310         my ($refname, $pathname) = split(/:/, $path_info, 2);
 311         if (defined $pathname) {
 312                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 313                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 314                 $pathname =~ s,^/+,,;
 315                 if (!$pathname || substr($pathname, -1) eq "/") {
 316                         $action  ||= "tree";
 317                         $pathname =~ s,/$,,;
 318                 } else {
 319                         $action  ||= "blob_plain";
 320                 }
 321                 $hash_base ||= validate_refname($refname);
 322                 $file_name ||= validate_pathname($pathname);
 323         } elsif (defined $refname) {
 324                 # we got "project.git/branch"
 325                 $action ||= "shortlog";
 326                 $hash   ||= validate_refname($refname);
 327         }
 328 }
 329 evaluate_path_info();
 330
 331 # path to the current git repository
 332 our $git_dir;
 333 $git_dir = "$projectroot/$project" if $project;
 334
 335 # dispatch
 336 my %actions = (
 337         "blame" => \&git_blame2,
 338         "blobdiff" => \&git_blobdiff,
 339         "blobdiff_plain" => \&git_blobdiff_plain,
 340         "blob" => \&git_blob,
 341         "blob_plain" => \&git_blob_plain,
 342         "commitdiff" => \&git_commitdiff,
 343         "commitdiff_plain" => \&git_commitdiff_plain,
 344         "commit" => \&git_commit,
 345         "heads" => \&git_heads,
 346         "history" => \&git_history,
 347         "log" => \&git_log,
 348         "rss" => \&git_rss,
 349         "search" => \&git_search,
 350         "shortlog" => \&git_shortlog,
 351         "summary" => \&git_summary,
 352         "tag" => \&git_tag,
 353         "tags" => \&git_tags,
 354         "tree" => \&git_tree,
 355         "snapshot" => \&git_snapshot,
 356         # those below don't need $project
 357         "opml" => \&git_opml,
 358         "project_list" => \&git_project_list,
 359         "project_index" => \&git_project_index,
 360 );
 361
 362 if (defined $project) {
 363         $action ||= 'summary';
 364 } else {
 365         $action ||= 'project_list';
 366 }
 367 if (!defined($actions{$action})) {
 368         die_error(undef, "Unknown action");
 369 }
 370 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 371     !$project) {
 372         die_error(undef, "Project needed");
 373 }
 374 $actions{$action}->();
 375 exit;
 376
 377 ## ======================================================================
 378 ## action links
 379
 380 sub href(%) {
 381         my %params = @_;
 382         my $href = $my_uri;
 383
 384         my @mapping = (
 385                 project => "p",
 386                 action => "a",
 387                 file_name => "f",
 388                 file_parent => "fp",
 389                 hash => "h",
 390                 hash_parent => "hp",
 391                 hash_base => "hb",
 392                 hash_parent_base => "hpb",
 393                 page => "pg",
 394                 order => "o",
 395                 searchtext => "s",
 396         );
 397         my %mapping = @mapping;
 398
 399         $params{'project'} = $project unless exists $params{'project'};
 400
 401         my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 402         if ($use_pathinfo) {
 403                 # use PATH_INFO for project name
 404                 $href .= "/$params{'project'}" if defined $params{'project'};
 405                 delete $params{'project'};
 406
 407                 # Summary just uses the project path URL
 408                 if (defined $params{'action'} && $params{'action'} eq 'summary') {
 409                         delete $params{'action'};
 410                 }
 411         }
 412
 413         # now encode the parameters explicitly
 414         my @result = ();
 415         for (my $i = 0; $i < @mapping; $i += 2) {
 416                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 417                 if (defined $params{$name}) {
 418                         push @result, $symbol . "=" . esc_param($params{$name});
 419                 }
 420         }
 421         $href .= "?" . join(';', @result) if scalar @result;
 422
 423         return $href;
 424 }
 425
 426
 427 ## ======================================================================
 428 ## validation, quoting/unquoting and escaping
 429
 430 sub validate_pathname {
 431         my $input = shift || return undef;
 432
 433         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 434         # at the beginning, at the end, and between slashes.
 435         # also this catches doubled slashes
 436         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 437                 return undef;
 438         }
 439         # no null characters
 440         if ($input =~ m!\0!) {
 441                 return undef;
 442         }
 443         return $input;
 444 }
 445
 446 sub validate_refname {
 447         my $input = shift || return undef;
 448
 449         # textual hashes are O.K.
 450         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 451                 return $input;
 452         }
 453         # it must be correct pathname
 454         $input = validate_pathname($input)
 455                 or return undef;
 456         # restrictions on ref name according to git-check-ref-format
 457         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 458                 return undef;
 459         }
 460         return $input;
 461 }
 462
 463 # quote unsafe chars, but keep the slash, even when it's not
 464 # correct, but quoted slashes look too horrible in bookmarks
 465 sub esc_param {
 466         my $str = shift;
 467         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 468         $str =~ s/\+/%2B/g;
 469         $str =~ s/ /\+/g;
 470         return $str;
 471 }
 472
 473 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 474 sub esc_url {
 475         my $str = shift;
 476         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 477         $str =~ s/\+/%2B/g;
 478         $str =~ s/ /\+/g;
 479         return $str;
 480 }
 481
 482 # replace invalid utf8 character with SUBSTITUTION sequence
 483 sub esc_html {
 484         my $str = shift;
 485         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 486         $str = escapeHTML($str);
 487         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 488         $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 489         return $str;
 490 }
 491
 492 # git may return quoted and escaped filenames
 493 sub unquote {
 494         my $str = shift;
 495         if ($str =~ m/^"(.*)"$/) {
 496                 $str = $1;
 497                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 498         }
 499         return $str;
 500 }
 501
 502 # escape tabs (convert tabs to spaces)
 503 sub untabify {
 504         my $line = shift;
 505
 506         while ((my $pos = index($line, "\t")) != -1) {
 507                 if (my $count = (8 - ($pos % 8))) {
 508                         my $spaces = ' ' x $count;
 509                         $line =~ s/\t/$spaces/;
 510                 }
 511         }
 512
 513         return $line;
 514 }
 515
 516 sub project_in_list {
 517         my $project = shift;
 518         my @list = git_get_projects_list();
 519         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 520 }
 521
 522 ## ----------------------------------------------------------------------
 523 ## HTML aware string manipulation
 524
 525 sub chop_str {
 526         my $str = shift;
 527         my $len = shift;
 528         my $add_len = shift || 10;
 529
 530         # allow only $len chars, but don't cut a word if it would fit in $add_len
 531         # if it doesn't fit, cut it if it's still longer than the dots we would add
 532         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 533         my $body = $1;
 534         my $tail = $2;
 535         if (length($tail) > 4) {
 536                 $tail = " ...";
 537                 $body =~ s/&[^;]*$//; # remove chopped character entities
 538         }
 539         return "$body$tail";
 540 }
 541
 542 ## ----------------------------------------------------------------------
 543 ## functions returning short strings
 544
 545 # CSS class for given age value (in seconds)
 546 sub age_class {
 547         my $age = shift;
 548
 549         if ($age < 60*60*2) {
 550                 return "age0";
 551         } elsif ($age < 60*60*24*2) {
 552                 return "age1";
 553         } else {
 554                 return "age2";
 555         }
 556 }
 557
 558 # convert age in seconds to "nn units ago" string
 559 sub age_string {
 560         my $age = shift;
 561         my $age_str;
 562
 563         if ($age > 60*60*24*365*2) {
 564                 $age_str = (int $age/60/60/24/365);
 565                 $age_str .= " years ago";
 566         } elsif ($age > 60*60*24*(365/12)*2) {
 567                 $age_str = int $age/60/60/24/(365/12);
 568                 $age_str .= " months ago";
 569         } elsif ($age > 60*60*24*7*2) {
 570                 $age_str = int $age/60/60/24/7;
 571                 $age_str .= " weeks ago";
 572         } elsif ($age > 60*60*24*2) {
 573                 $age_str = int $age/60/60/24;
 574                 $age_str .= " days ago";
 575         } elsif ($age > 60*60*2) {
 576                 $age_str = int $age/60/60;
 577                 $age_str .= " hours ago";
 578         } elsif ($age > 60*2) {
 579                 $age_str = int $age/60;
 580                 $age_str .= " min ago";
 581         } elsif ($age > 2) {
 582                 $age_str = int $age;
 583                 $age_str .= " sec ago";
 584         } else {
 585                 $age_str .= " right now";
 586         }
 587         return $age_str;
 588 }
 589
 590 # convert file mode in octal to symbolic file mode string
 591 sub mode_str {
 592         my $mode = oct shift;
 593
 594         if (S_ISDIR($mode & S_IFMT)) {
 595                 return 'drwxr-xr-x';
 596         } elsif (S_ISLNK($mode)) {
 597                 return 'lrwxrwxrwx';
 598         } elsif (S_ISREG($mode)) {
 599                 # git cares only about the executable bit
 600                 if ($mode & S_IXUSR) {
 601                         return '-rwxr-xr-x';
 602                 } else {
 603                         return '-rw-r--r--';
 604                 };
 605         } else {
 606                 return '----------';
 607         }
 608 }
 609
 610 # convert file mode in octal to file type string
 611 sub file_type {
 612         my $mode = shift;
 613
 614         if ($mode !~ m/^[0-7]+$/) {
 615                 return $mode;
 616         } else {
 617                 $mode = oct $mode;
 618         }
 619
 620         if (S_ISDIR($mode & S_IFMT)) {
 621                 return "directory";
 622         } elsif (S_ISLNK($mode)) {
 623                 return "symlink";
 624         } elsif (S_ISREG($mode)) {
 625                 return "file";
 626         } else {
 627                 return "unknown";
 628         }
 629 }
 630
 631 ## ----------------------------------------------------------------------
 632 ## functions returning short HTML fragments, or transforming HTML fragments
 633 ## which don't beling to other sections
 634
 635 # format line of commit message or tag comment
 636 sub format_log_line_html {
 637         my $line = shift;
 638
 639         $line = esc_html($line);
 640         $line =~ s/ /&nbsp;/g;
 641         if ($line =~ m/([0-9a-fA-F]{40})/) {
 642                 my $hash_text = $1;
 643                 if (git_get_type($hash_text) eq "commit") {
 644                         my $link =
 645                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 646                                         -class => "text"}, $hash_text);
 647                         $line =~ s/$hash_text/$link/;
 648                 }
 649         }
 650         return $line;
 651 }
 652
 653 # format marker of refs pointing to given object
 654 sub format_ref_marker {
 655         my ($refs, $id) = @_;
 656         my $markers = '';
 657
 658         if (defined $refs->{$id}) {
 659                 foreach my $ref (@{$refs->{$id}}) {
 660                         my ($type, $name) = qw();
 661                         # e.g. tags/v2.6.11 or heads/next
 662                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 663                                 $type = $1;
 664                                 $name = $2;
 665                         } else {
 666                                 $type = "ref";
 667                                 $name = $ref;
 668                         }
 669
 670                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 671                 }
 672         }
 673
 674         if ($markers) {
 675                 return ' <span class="refs">'. $markers . '</span>';
 676         } else {
 677                 return "";
 678         }
 679 }
 680
 681 # format, perhaps shortened and with markers, title line
 682 sub format_subject_html {
 683         my ($long, $short, $href, $extra) = @_;
 684         $extra = '' unless defined($extra);
 685
 686         if (length($short) < length($long)) {
 687                 return $cgi->a({-href => $href, -class => "list subject",
 688                                 -title => decode("utf8", $long, Encode::FB_DEFAULT)},
 689                        esc_html($short) . $extra);
 690         } else {
 691                 return $cgi->a({-href => $href, -class => "list subject"},
 692                        esc_html($long)  . $extra);
 693         }
 694 }
 695
 696 sub format_diff_line {
 697         my $line = shift;
 698         my $char = substr($line, 0, 1);
 699         my $diff_class = "";
 700
 701         chomp $line;
 702
 703         if ($char eq '+') {
 704                 $diff_class = " add";
 705         } elsif ($char eq "-") {
 706                 $diff_class = " rem";
 707         } elsif ($char eq "@") {
 708                 $diff_class = " chunk_header";
 709         } elsif ($char eq "\\") {
 710                 $diff_class = " incomplete";
 711         }
 712         $line = untabify($line);
 713         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 714 }
 715
 716 ## ----------------------------------------------------------------------
 717 ## git utility subroutines, invoking git commands
 718
 719 # returns path to the core git executable and the --git-dir parameter as list
 720 sub git_cmd {
 721         return $GIT, '--git-dir='.$git_dir;
 722 }
 723
 724 # returns path to the core git executable and the --git-dir parameter as string
 725 sub git_cmd_str {
 726         return join(' ', git_cmd());
 727 }
 728
 729 # get HEAD ref of given project as hash
 730 sub git_get_head_hash {
 731         my $project = shift;
 732         my $o_git_dir = $git_dir;
 733         my $retval = undef;
 734         $git_dir = "$projectroot/$project";
 735         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 736                 my $head = <$fd>;
 737                 close $fd;
 738                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 739                         $retval = $1;
 740                 }
 741         }
 742         if (defined $o_git_dir) {
 743                 $git_dir = $o_git_dir;
 744         }
 745         return $retval;
 746 }
 747
 748 # get type of given object
 749 sub git_get_type {
 750         my $hash = shift;
 751
 752         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 753         my $type = <$fd>;
 754         close $fd or return;
 755         chomp $type;
 756         return $type;
 757 }
 758
 759 sub git_get_project_config {
 760         my ($key, $type) = @_;
 761
 762         return unless ($key);
 763         $key =~ s/^gitweb\.//;
 764         return if ($key =~ m/\W/);
 765
 766         my @x = (git_cmd(), 'repo-config');
 767         if (defined $type) { push @x, $type; }
 768         push @x, "--get";
 769         push @x, "gitweb.$key";
 770         my $val = qx(@x);
 771         chomp $val;
 772         return ($val);
 773 }
 774
 775 # get hash of given path at given ref
 776 sub git_get_hash_by_path {
 777         my $base = shift;
 778         my $path = shift || return undef;
 779         my $type = shift;
 780
 781         $path =~ s,/+$,,;
 782
 783         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 784                 or die_error(undef, "Open git-ls-tree failed");
 785         my $line = <$fd>;
 786         close $fd or return undef;
 787
 788         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 789         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 790         if (defined $type && $type ne $2) {
 791                 # type doesn't match
 792                 return undef;
 793         }
 794         return $3;
 795 }
 796
 797 ## ......................................................................
 798 ## git utility functions, directly accessing git repository
 799
 800 sub git_get_project_description {
 801         my $path = shift;
 802
 803         open my $fd, "$projectroot/$path/description" or return undef;
 804         my $descr = <$fd>;
 805         close $fd;
 806         chomp $descr;
 807         return $descr;
 808 }
 809
 810 sub git_get_project_url_list {
 811         my $path = shift;
 812
 813         open my $fd, "$projectroot/$path/cloneurl" or return;
 814         my @git_project_url_list = map { chomp; $_ } <$fd>;
 815         close $fd;
 816
 817         return wantarray ? @git_project_url_list : \@git_project_url_list;
 818 }
 819
 820 sub git_get_projects_list {
 821         my @list;
 822
 823         if (-d $projects_list) {
 824                 # search in directory
 825                 my $dir = $projects_list;
 826                 my $pfxlen = length("$dir");
 827
 828                 File::Find::find({
 829                         follow_fast => 1, # follow symbolic links
 830                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 831                         wanted => sub {
 832                                 # skip project-list toplevel, if we get it.
 833                                 return if (m!^[/.]$!);
 834                                 # only directories can be git repositories
 835                                 return unless (-d $_);
 836
 837                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 838                                 # we check related file in $projectroot
 839                                 if (-e "$projectroot/$subdir/HEAD" && (!$export_ok ||
 840                                     -e "$projectroot/$subdir/$export_ok")) {
 841                                         push @list, { path => $subdir };
 842                                         $File::Find::prune = 1;
 843                                 }
 844                         },
 845                 }, "$dir");
 846
 847         } elsif (-f $projects_list) {
 848                 # read from file(url-encoded):
 849                 # 'git%2Fgit.git Linus+Torvalds'
 850                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 851                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 852                 open my ($fd), $projects_list or return;
 853                 while (my $line = <$fd>) {
 854                         chomp $line;
 855                         my ($path, $owner) = split ' ', $line;
 856                         $path = unescape($path);
 857                         $owner = unescape($owner);
 858                         if (!defined $path) {
 859                                 next;
 860                         }
 861                         if (-e "$projectroot/$path/HEAD" && (!$export_ok ||
 862                             -e "$projectroot/$path/$export_ok")) {
 863                                 my $pr = {
 864                                         path => $path,
 865                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 866                                 };
 867                                 push @list, $pr
 868                         }
 869                 }
 870                 close $fd;
 871         }
 872         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 873         return @list;
 874 }
 875
 876 sub git_get_project_owner {
 877         my $project = shift;
 878         my $owner;
 879
 880         return undef unless $project;
 881
 882         # read from file (url-encoded):
 883         # 'git%2Fgit.git Linus+Torvalds'
 884         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 885         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 886         if (-f $projects_list) {
 887                 open (my $fd , $projects_list);
 888                 while (my $line = <$fd>) {
 889                         chomp $line;
 890                         my ($pr, $ow) = split ' ', $line;
 891                         $pr = unescape($pr);
 892                         $ow = unescape($ow);
 893                         if ($pr eq $project) {
 894                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 895                                 last;
 896                         }
 897                 }
 898                 close $fd;
 899         }
 900         if (!defined $owner) {
 901                 $owner = get_file_owner("$projectroot/$project");
 902         }
 903
 904         return $owner;
 905 }
 906
 907 sub git_get_references {
 908         my $type = shift || "";
 909         my %refs;
 910         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 911         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 912         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 913                 or return;
 914
 915         while (my $line = <$fd>) {
 916                 chomp $line;
 917                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 918                         if (defined $refs{$1}) {
 919                                 push @{$refs{$1}}, $2;
 920                         } else {
 921                                 $refs{$1} = [ $2 ];
 922                         }
 923                 }
 924         }
 925         close $fd or return;
 926         return \%refs;
 927 }
 928
 929 sub git_get_rev_name_tags {
 930         my $hash = shift || return undef;
 931
 932         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 933                 or return;
 934         my $name_rev = <$fd>;
 935         close $fd;
 936
 937         if ($name_rev =~ m|^$hash tags/(.*)$|) {
 938                 return $1;
 939         } else {
 940                 # catches also '$hash undefined' output
 941                 return undef;
 942         }
 943 }
 944
 945 ## ----------------------------------------------------------------------
 946 ## parse to hash functions
 947
 948 sub parse_date {
 949         my $epoch = shift;
 950         my $tz = shift || "-0000";
 951
 952         my %date;
 953         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 954         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 955         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 956         $date{'hour'} = $hour;
 957         $date{'minute'} = $min;
 958         $date{'mday'} = $mday;
 959         $date{'day'} = $days[$wday];
 960         $date{'month'} = $months[$mon];
 961         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 962                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 963         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 964                              $mday, $months[$mon], $hour ,$min;
 965
 966         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 967         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 968         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 969         $date{'hour_local'} = $hour;
 970         $date{'minute_local'} = $min;
 971         $date{'tz_local'} = $tz;
 972         return %date;
 973 }
 974
 975 sub parse_tag {
 976         my $tag_id = shift;
 977         my %tag;
 978         my @comment;
 979
 980         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 981         $tag{'id'} = $tag_id;
 982         while (my $line = <$fd>) {
 983                 chomp $line;
 984                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 985                         $tag{'object'} = $1;
 986                 } elsif ($line =~ m/^type (.+)$/) {
 987                         $tag{'type'} = $1;
 988                 } elsif ($line =~ m/^tag (.+)$/) {
 989                         $tag{'name'} = $1;
 990                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 991                         $tag{'author'} = $1;
 992                         $tag{'epoch'} = $2;
 993                         $tag{'tz'} = $3;
 994                 } elsif ($line =~ m/--BEGIN/) {
 995                         push @comment, $line;
 996                         last;
 997                 } elsif ($line eq "") {
 998                         last;
 999                 }
1000         }
1001         push @comment, <$fd>;
1002         $tag{'comment'} = \@comment;
1003         close $fd or return;
1004         if (!defined $tag{'name'}) {
1005                 return
1006         };
1007         return %tag
1008 }
1009
1010 sub parse_commit {
1011         my $commit_id = shift;
1012         my $commit_text = shift;
1013
1014         my @commit_lines;
1015         my %co;
1016
1017         if (defined $commit_text) {
1018                 @commit_lines = @$commit_text;
1019         } else {
1020                 $/ = "\0";
1021                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1022                         or return;
1023                 @commit_lines = split '\n', <$fd>;
1024                 close $fd or return;
1025                 $/ = "\n";
1026                 pop @commit_lines;
1027         }
1028         my $header = shift @commit_lines;
1029         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1030                 return;
1031         }
1032         ($co{'id'}, my @parents) = split ' ', $header;
1033         $co{'parents'} = \@parents;
1034         $co{'parent'} = $parents[0];
1035         while (my $line = shift @commit_lines) {
1036                 last if $line eq "\n";
1037                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1038                         $co{'tree'} = $1;
1039                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1040                         $co{'author'} = $1;
1041                         $co{'author_epoch'} = $2;
1042                         $co{'author_tz'} = $3;
1043                         if ($co{'author'} =~ m/^([^<]+) </) {
1044                                 $co{'author_name'} = $1;
1045                         } else {
1046                                 $co{'author_name'} = $co{'author'};
1047                         }
1048                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1049                         $co{'committer'} = $1;
1050                         $co{'committer_epoch'} = $2;
1051                         $co{'committer_tz'} = $3;
1052                         $co{'committer_name'} = $co{'committer'};
1053                         $co{'committer_name'} =~ s/ <.*//;
1054                 }
1055         }
1056         if (!defined $co{'tree'}) {
1057                 return;
1058         };
1059
1060         foreach my $title (@commit_lines) {
1061                 $title =~ s/^    //;
1062                 if ($title ne "") {
1063                         $co{'title'} = chop_str($title, 80, 5);
1064                         # remove leading stuff of merges to make the interesting part visible
1065                         if (length($title) > 50) {
1066                                 $title =~ s/^Automatic //;
1067                                 $title =~ s/^merge (of|with) /Merge ... /i;
1068                                 if (length($title) > 50) {
1069                                         $title =~ s/(http|rsync):\/\///;
1070                                 }
1071                                 if (length($title) > 50) {
1072                                         $title =~ s/(master|www|rsync)\.//;
1073                                 }
1074                                 if (length($title) > 50) {
1075                                         $title =~ s/kernel.org:?//;
1076                                 }
1077                                 if (length($title) > 50) {
1078                                         $title =~ s/\/pub\/scm//;
1079                                 }
1080                         }
1081                         $co{'title_short'} = chop_str($title, 50, 5);
1082                         last;
1083                 }
1084         }
1085         # remove added spaces
1086         foreach my $line (@commit_lines) {
1087                 $line =~ s/^    //;
1088         }
1089         $co{'comment'} = \@commit_lines;
1090
1091         my $age = time - $co{'committer_epoch'};
1092         $co{'age'} = $age;
1093         $co{'age_string'} = age_string($age);
1094         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1095         if ($age > 60*60*24*7*2) {
1096                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1097                 $co{'age_string_age'} = $co{'age_string'};
1098         } else {
1099                 $co{'age_string_date'} = $co{'age_string'};
1100                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1101         }
1102         return %co;
1103 }
1104
1105 # parse ref from ref_file, given by ref_id, with given type
1106 sub parse_ref {
1107         my $ref_file = shift;
1108         my $ref_id = shift;
1109         my $type = shift || git_get_type($ref_id);
1110         my %ref_item;
1111
1112         $ref_item{'type'} = $type;
1113         $ref_item{'id'} = $ref_id;
1114         $ref_item{'epoch'} = 0;
1115         $ref_item{'age'} = "unknown";
1116         if ($type eq "tag") {
1117                 my %tag = parse_tag($ref_id);
1118                 $ref_item{'comment'} = $tag{'comment'};
1119                 if ($tag{'type'} eq "commit") {
1120                         my %co = parse_commit($tag{'object'});
1121                         $ref_item{'epoch'} = $co{'committer_epoch'};
1122                         $ref_item{'age'} = $co{'age_string'};
1123                 } elsif (defined($tag{'epoch'})) {
1124                         my $age = time - $tag{'epoch'};
1125                         $ref_item{'epoch'} = $tag{'epoch'};
1126                         $ref_item{'age'} = age_string($age);
1127                 }
1128                 $ref_item{'reftype'} = $tag{'type'};
1129                 $ref_item{'name'} = $tag{'name'};
1130                 $ref_item{'refid'} = $tag{'object'};
1131         } elsif ($type eq "commit"){
1132                 my %co = parse_commit($ref_id);
1133                 $ref_item{'reftype'} = "commit";
1134                 $ref_item{'name'} = $ref_file;
1135                 $ref_item{'title'} = $co{'title'};
1136                 $ref_item{'refid'} = $ref_id;
1137                 $ref_item{'epoch'} = $co{'committer_epoch'};
1138                 $ref_item{'age'} = $co{'age_string'};
1139         } else {
1140                 $ref_item{'reftype'} = $type;
1141                 $ref_item{'name'} = $ref_file;
1142                 $ref_item{'refid'} = $ref_id;
1143         }
1144
1145         return %ref_item;
1146 }
1147
1148 # parse line of git-diff-tree "raw" output
1149 sub parse_difftree_raw_line {
1150         my $line = shift;
1151         my %res;
1152
1153         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1154         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1155         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1156                 $res{'from_mode'} = $1;
1157                 $res{'to_mode'} = $2;
1158                 $res{'from_id'} = $3;
1159                 $res{'to_id'} = $4;
1160                 $res{'status'} = $5;
1161                 $res{'similarity'} = $6;
1162                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1163                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1164                 } else {
1165                         $res{'file'} = unquote($7);
1166                 }
1167         }
1168         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1169         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1170                 $res{'commit'} = $1;
1171         }
1172
1173         return wantarray ? %res : \%res;
1174 }
1175
1176 # parse line of git-ls-tree output
1177 sub parse_ls_tree_line ($;%) {
1178         my $line = shift;
1179         my %opts = @_;
1180         my %res;
1181
1182         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1183         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1184
1185         $res{'mode'} = $1;
1186         $res{'type'} = $2;
1187         $res{'hash'} = $3;
1188         if ($opts{'-z'}) {
1189                 $res{'name'} = $4;
1190         } else {
1191                 $res{'name'} = unquote($4);
1192         }
1193
1194         return wantarray ? %res : \%res;
1195 }
1196
1197 ## ......................................................................
1198 ## parse to array of hashes functions
1199
1200 sub git_get_refs_list {
1201         my $type = shift || "";
1202         my %refs;
1203         my @reflist;
1204
1205         my @refs;
1206         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1207                 or return;
1208         while (my $line = <$fd>) {
1209                 chomp $line;
1210                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1211                         if (defined $refs{$1}) {
1212                                 push @{$refs{$1}}, $2;
1213                         } else {
1214                                 $refs{$1} = [ $2 ];
1215                         }
1216
1217                         if (! $4) { # unpeeled, direct reference
1218                                 push @refs, { hash => $1, name => $3 }; # without type
1219                         } elsif ($3 eq $refs[-1]{'name'}) {
1220                                 # most likely a tag is followed by its peeled
1221                                 # (deref) one, and when that happens we know the
1222                                 # previous one was of type 'tag'.
1223                                 $refs[-1]{'type'} = "tag";
1224                         }
1225                 }
1226         }
1227         close $fd;
1228
1229         foreach my $ref (@refs) {
1230                 my $ref_file = $ref->{'name'};
1231                 my $ref_id   = $ref->{'hash'};
1232
1233                 my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1234                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1235
1236                 push @reflist, \%ref_item;
1237         }
1238         # sort refs by age
1239         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1240         return (\@reflist, \%refs);
1241 }
1242
1243 ## ----------------------------------------------------------------------
1244 ## filesystem-related functions
1245
1246 sub get_file_owner {
1247         my $path = shift;
1248
1249         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1250         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1251         if (!defined $gcos) {
1252                 return undef;
1253         }
1254         my $owner = $gcos;
1255         $owner =~ s/[,;].*$//;
1256         return decode("utf8", $owner, Encode::FB_DEFAULT);
1257 }
1258
1259 ## ......................................................................
1260 ## mimetype related functions
1261
1262 sub mimetype_guess_file {
1263         my $filename = shift;
1264         my $mimemap = shift;
1265         -r $mimemap or return undef;
1266
1267         my %mimemap;
1268         open(MIME, $mimemap) or return undef;
1269         while (<MIME>) {
1270                 next if m/^#/; # skip comments
1271                 my ($mime, $exts) = split(/\t+/);
1272                 if (defined $exts) {
1273                         my @exts = split(/\s+/, $exts);
1274                         foreach my $ext (@exts) {
1275                                 $mimemap{$ext} = $mime;
1276                         }
1277                 }
1278         }
1279         close(MIME);
1280
1281         $filename =~ /\.([^.]*)$/;
1282         return $mimemap{$1};
1283 }
1284
1285 sub mimetype_guess {
1286         my $filename = shift;
1287         my $mime;
1288         $filename =~ /\./ or return undef;
1289
1290         if ($mimetypes_file) {
1291                 my $file = $mimetypes_file;
1292                 if ($file !~ m!^/!) { # if it is relative path
1293                         # it is relative to project
1294                         $file = "$projectroot/$project/$file";
1295                 }
1296                 $mime = mimetype_guess_file($filename, $file);
1297         }
1298         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1299         return $mime;
1300 }
1301
1302 sub blob_mimetype {
1303         my $fd = shift;
1304         my $filename = shift;
1305
1306         if ($filename) {
1307                 my $mime = mimetype_guess($filename);
1308                 $mime and return $mime;
1309         }
1310
1311         # just in case
1312         return $default_blob_plain_mimetype unless $fd;
1313
1314         if (-T $fd) {
1315                 return 'text/plain' .
1316                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1317         } elsif (! $filename) {
1318                 return 'application/octet-stream';
1319         } elsif ($filename =~ m/\.png$/i) {
1320                 return 'image/png';
1321         } elsif ($filename =~ m/\.gif$/i) {
1322                 return 'image/gif';
1323         } elsif ($filename =~ m/\.jpe?g$/i) {
1324                 return 'image/jpeg';
1325         } else {
1326                 return 'application/octet-stream';
1327         }
1328 }
1329
1330 ## ======================================================================
1331 ## functions printing HTML: header, footer, error page
1332
1333 sub git_header_html {
1334         my $status = shift || "200 OK";
1335         my $expires = shift;
1336
1337         my $title = "$site_name git";
1338         if (defined $project) {
1339                 $title .= " - $project";
1340                 if (defined $action) {
1341                         $title .= "/$action";
1342                         if (defined $file_name) {
1343                                 $title .= " - " . esc_html($file_name);
1344                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1345                                         $title .= "/";
1346                                 }
1347                         }
1348                 }
1349         }
1350         my $content_type;
1351         # require explicit support from the UA if we are to send the page as
1352         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1353         # we have to do this because MSIE sometimes globs '*/*', pretending to
1354         # support xhtml+xml but choking when it gets what it asked for.
1355         if (defined $cgi->http('HTTP_ACCEPT') &&
1356             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1357             $cgi->Accept('application/xhtml+xml') != 0) {
1358                 $content_type = 'application/xhtml+xml';
1359         } else {
1360                 $content_type = 'text/html';
1361         }
1362         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1363                            -status=> $status, -expires => $expires);
1364         print <<EOF;
1365 <?xml version="1.0" encoding="utf-8"?>
1366 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1367 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1368 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1369 <!-- git core binaries version $git_version -->
1370 <head>
1371 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1372 <meta name="generator" content="gitweb/$version git/$git_version"/>
1373 <meta name="robots" content="index, nofollow"/>
1374 <title>$title</title>
1375 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
1376 EOF
1377         if (defined $project) {
1378                 printf('<link rel="alternate" title="%s log" '.
1379                        'href="%s" type="application/rss+xml"/>'."\n",
1380                        esc_param($project), href(action=>"rss"));
1381         } else {
1382                 printf('<link rel="alternate" title="%s projects list" '.
1383                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1384                        $site_name, href(project=>undef, action=>"project_index"));
1385                 printf('<link rel="alternate" title="%s projects logs" '.
1386                        'href="%s" type="text/x-opml"/>'."\n",
1387                        $site_name, href(project=>undef, action=>"opml"));
1388         }
1389         if (defined $favicon) {
1390                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1391         }
1392
1393         print "</head>\n" .
1394               "<body>\n" .
1395               "<div class=\"page_header\">\n" .
1396               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1397               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1398               "</a>\n";
1399         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1400         if (defined $project) {
1401                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1402                 if (defined $action) {
1403                         print " / $action";
1404                 }
1405                 print "\n";
1406                 if (!defined $searchtext) {
1407                         $searchtext = "";
1408                 }
1409                 my $search_hash;
1410                 if (defined $hash_base) {
1411                         $search_hash = $hash_base;
1412                 } elsif (defined $hash) {
1413                         $search_hash = $hash;
1414                 } else {
1415                         $search_hash = "HEAD";
1416                 }
1417                 $cgi->param("a", "search");
1418                 $cgi->param("h", $search_hash);
1419                 print $cgi->startform(-method => "get", -action => $my_uri) .
1420                       "<div class=\"search\">\n" .
1421                       $cgi->hidden(-name => "p") . "\n" .
1422                       $cgi->hidden(-name => "a") . "\n" .
1423                       $cgi->hidden(-name => "h") . "\n" .
1424                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1425                       "</div>" .
1426                       $cgi->end_form() . "\n";
1427         }
1428         print "</div>\n";
1429 }
1430
1431 sub git_footer_html {
1432         print "<div class=\"page_footer\">\n";
1433         if (defined $project) {
1434                 my $descr = git_get_project_description($project);
1435                 if (defined $descr) {
1436                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1437                 }
1438                 print $cgi->a({-href => href(action=>"rss"),
1439                               -class => "rss_logo"}, "RSS") . "\n";
1440         } else {
1441                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1442                               -class => "rss_logo"}, "OPML") . " ";
1443                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1444                               -class => "rss_logo"}, "TXT") . "\n";
1445         }
1446         print "</div>\n" .
1447               "</body>\n" .
1448               "</html>";
1449 }
1450
1451 sub die_error {
1452         my $status = shift || "403 Forbidden";
1453         my $error = shift || "Malformed query, file missing or permission denied";
1454
1455         git_header_html($status);
1456         print <<EOF;
1457 <div class="page_body">
1458 <br /><br />
1459 $status - $error
1460 <br />
1461 </div>
1462 EOF
1463         git_footer_html();
1464         exit;
1465 }
1466
1467 ## ----------------------------------------------------------------------
1468 ## functions printing or outputting HTML: navigation
1469
1470 sub git_print_page_nav {
1471         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1472         $extra = '' if !defined $extra; # pager or formats
1473
1474         my @navs = qw(summary shortlog log commit commitdiff tree);
1475         if ($suppress) {
1476                 @navs = grep { $_ ne $suppress } @navs;
1477         }
1478
1479         my %arg = map { $_ => {action=>$_} } @navs;
1480         if (defined $head) {
1481                 for (qw(commit commitdiff)) {
1482                         $arg{$_}{hash} = $head;
1483                 }
1484                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1485                         for (qw(shortlog log)) {
1486                                 $arg{$_}{hash} = $head;
1487                         }
1488                 }
1489         }
1490         $arg{tree}{hash} = $treehead if defined $treehead;
1491         $arg{tree}{hash_base} = $treebase if defined $treebase;
1492
1493         print "<div class=\"page_nav\">\n" .
1494                 (join " | ",
1495                  map { $_ eq $current ?
1496                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1497                  } @navs);
1498         print "<br/>\n$extra<br/>\n" .
1499               "</div>\n";
1500 }
1501
1502 sub format_paging_nav {
1503         my ($action, $hash, $head, $page, $nrevs) = @_;
1504         my $paging_nav;
1505
1506
1507         if ($hash ne $head || $page) {
1508                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1509         } else {
1510                 $paging_nav .= "HEAD";
1511         }
1512
1513         if ($page > 0) {
1514                 $paging_nav .= " &sdot; " .
1515                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1516                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1517         } else {
1518                 $paging_nav .= " &sdot; prev";
1519         }
1520
1521         if ($nrevs >= (100 * ($page+1)-1)) {
1522                 $paging_nav .= " &sdot; " .
1523                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1524                                  -accesskey => "n", -title => "Alt-n"}, "next");
1525         } else {
1526                 $paging_nav .= " &sdot; next";
1527         }
1528
1529         return $paging_nav;
1530 }
1531
1532 ## ......................................................................
1533 ## functions printing or outputting HTML: div
1534
1535 sub git_print_header_div {
1536         my ($action, $title, $hash, $hash_base) = @_;
1537         my %args = ();
1538
1539         $args{action} = $action;
1540         $args{hash} = $hash if $hash;
1541         $args{hash_base} = $hash_base if $hash_base;
1542
1543         print "<div class=\"header\">\n" .
1544               $cgi->a({-href => href(%args), -class => "title"},
1545               $title ? $title : $action) .
1546               "\n</div>\n";
1547 }
1548
1549 #sub git_print_authorship (\%) {
1550 sub git_print_authorship {
1551         my $co = shift;
1552
1553         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1554         print "<div class=\"author_date\">" .
1555               esc_html($co->{'author_name'}) .
1556               " [$ad{'rfc2822'}";
1557         if ($ad{'hour_local'} < 6) {
1558                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1559                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1560         } else {
1561                 printf(" (%02d:%02d %s)",
1562                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1563         }
1564         print "]</div>\n";
1565 }
1566
1567 sub git_print_page_path {
1568         my $name = shift;
1569         my $type = shift;
1570         my $hb = shift;
1571
1572         if (!defined $name) {
1573                 print "<div class=\"page_path\">/</div>\n";
1574         } else {
1575                 my @dirname = split '/', $name;
1576                 my $basename = pop @dirname;
1577                 my $fullname = '';
1578
1579                 print "<div class=\"page_path\">";
1580                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1581                               -title => 'tree root'}, "[$project]");
1582                 print " / ";
1583                 foreach my $dir (@dirname) {
1584                         $fullname .= ($fullname ? '/' : '') . $dir;
1585                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1586                                                      hash_base=>$hb),
1587                                       -title => $fullname}, esc_html($dir));
1588                         print " / ";
1589                 }
1590                 if (defined $type && $type eq 'blob') {
1591                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1592                                                      hash_base=>$hb),
1593                                       -title => $name}, esc_html($basename));
1594                 } elsif (defined $type && $type eq 'tree') {
1595                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1596                                                      hash_base=>$hb),
1597                                       -title => $name}, esc_html($basename));
1598                 } else {
1599                         print esc_html($basename);
1600                 }
1601                 print "<br/></div>\n";
1602         }
1603 }
1604
1605 # sub git_print_log (\@;%) {
1606 sub git_print_log ($;%) {
1607         my $log = shift;
1608         my %opts = @_;
1609
1610         if ($opts{'-remove_title'}) {
1611                 # remove title, i.e. first line of log
1612                 shift @$log;
1613         }
1614         # remove leading empty lines
1615         while (defined $log->[0] && $log->[0] eq "") {
1616                 shift @$log;
1617         }
1618
1619         # print log
1620         my $signoff = 0;
1621         my $empty = 0;
1622         foreach my $line (@$log) {
1623                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1624                         $signoff = 1;
1625                         $empty = 0;
1626                         if (! $opts{'-remove_signoff'}) {
1627                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1628                                 next;
1629                         } else {
1630                                 # remove signoff lines
1631                                 next;
1632                         }
1633                 } else {
1634                         $signoff = 0;
1635                 }
1636
1637                 # print only one empty line
1638                 # do not print empty line after signoff
1639                 if ($line eq "") {
1640                         next if ($empty || $signoff);
1641                         $empty = 1;
1642                 } else {
1643                         $empty = 0;
1644                 }
1645
1646                 print format_log_line_html($line) . "<br/>\n";
1647         }
1648
1649         if ($opts{'-final_empty_line'}) {
1650                 # end with single empty line
1651                 print "<br/>\n" unless $empty;
1652         }
1653 }
1654
1655 sub git_print_simplified_log {
1656         my $log = shift;
1657         my $remove_title = shift;
1658
1659         git_print_log($log,
1660                 -final_empty_line=> 1,
1661                 -remove_title => $remove_title);
1662 }
1663
1664 # print tree entry (row of git_tree), but without encompassing <tr> element
1665 sub git_print_tree_entry {
1666         my ($t, $basedir, $hash_base, $have_blame) = @_;
1667
1668         my %base_key = ();
1669         $base_key{hash_base} = $hash_base if defined $hash_base;
1670
1671         # The format of a table row is: mode list link.  Where mode is
1672         # the mode of the entry, list is the name of the entry, an href,
1673         # and link is the action links of the entry.
1674
1675         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1676         if ($t->{'type'} eq "blob") {
1677                 print "<td class=\"list\">" .
1678                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1679                                                file_name=>"$basedir$t->{'name'}", %base_key),
1680                                  -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1681                 print "<td class=\"link\">";
1682                 if ($have_blame) {
1683                         print $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1684                                                      file_name=>"$basedir$t->{'name'}", %base_key)},
1685                                       "blame");
1686                 }
1687                 if (defined $hash_base) {
1688                         if ($have_blame) {
1689                                 print " | ";
1690                         }
1691                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1692                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1693                                       "history");
1694                 }
1695                 print " | " .
1696                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1697                                                file_name=>"$basedir$t->{'name'}")},
1698                                 "raw");
1699                 print "</td>\n";
1700
1701         } elsif ($t->{'type'} eq "tree") {
1702                 print "<td class=\"list\">";
1703                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1704                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1705                               esc_html($t->{'name'}));
1706                 print "</td>\n";
1707                 print "<td class=\"link\">";
1708                 if (defined $hash_base) {
1709                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1710                                                      file_name=>"$basedir$t->{'name'}")},
1711                                       "history");
1712                 }
1713                 print "</td>\n";
1714         }
1715 }
1716
1717 ## ......................................................................
1718 ## functions printing large fragments of HTML
1719
1720 sub git_difftree_body {
1721         my ($difftree, $hash, $parent) = @_;
1722
1723         print "<div class=\"list_head\">\n";
1724         if ($#{$difftree} > 10) {
1725                 print(($#{$difftree} + 1) . " files changed:\n");
1726         }
1727         print "</div>\n";
1728
1729         print "<table class=\"diff_tree\">\n";
1730         my $alternate = 1;
1731         my $patchno = 0;
1732         foreach my $line (@{$difftree}) {
1733                 my %diff = parse_difftree_raw_line($line);
1734
1735                 if ($alternate) {
1736                         print "<tr class=\"dark\">\n";
1737                 } else {
1738                         print "<tr class=\"light\">\n";
1739                 }
1740                 $alternate ^= 1;
1741
1742                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1743                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1744                 if ($diff{'to_mode'} ne ('0' x 6)) {
1745                         $to_mode_oct = oct $diff{'to_mode'};
1746                         if (S_ISREG($to_mode_oct)) { # only for regular file
1747                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1748                         }
1749                         $to_file_type = file_type($diff{'to_mode'});
1750                 }
1751                 if ($diff{'from_mode'} ne ('0' x 6)) {
1752                         $from_mode_oct = oct $diff{'from_mode'};
1753                         if (S_ISREG($to_mode_oct)) { # only for regular file
1754                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1755                         }
1756                         $from_file_type = file_type($diff{'from_mode'});
1757                 }
1758
1759                 if ($diff{'status'} eq "A") { # created
1760                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1761                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1762                         $mode_chng   .= "]</span>";
1763                         print "<td>";
1764                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1765                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1766                                        -class => "list"}, esc_html($diff{'file'}));
1767                         print "</td>\n";
1768                         print "<td>$mode_chng</td>\n";
1769                         print "<td class=\"link\">";
1770                         if ($action eq 'commitdiff') {
1771                                 # link to patch
1772                                 $patchno++;
1773                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1774                         }
1775                         print "</td>\n";
1776
1777                 } elsif ($diff{'status'} eq "D") { # deleted
1778                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1779                         print "<td>";
1780                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1781                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1782                                        -class => "list"}, esc_html($diff{'file'}));
1783                         print "</td>\n";
1784                         print "<td>$mode_chng</td>\n";
1785                         print "<td class=\"link\">";
1786                         if ($action eq 'commitdiff') {
1787                                 # link to patch
1788                                 $patchno++;
1789                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1790                                 print " | ";
1791                         }
1792                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1793                                                      file_name=>$diff{'file'})},
1794                                       "blame") . " | ";
1795                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1796                                                      file_name=>$diff{'file'})},
1797                                       "history");
1798                         print "</td>\n";
1799
1800                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1801                         my $mode_chnge = "";
1802                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1803                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1804                                 if ($from_file_type != $to_file_type) {
1805                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1806                                 }
1807                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1808                                         if ($from_mode_str && $to_mode_str) {
1809                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1810                                         } elsif ($to_mode_str) {
1811                                                 $mode_chnge .= " mode: $to_mode_str";
1812                                         }
1813                                 }
1814                                 $mode_chnge .= "]</span>\n";
1815                         }
1816                         print "<td>";
1817                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1818                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1819                                        -class => "list"}, esc_html($diff{'file'}));
1820                         print "</td>\n";
1821                         print "<td>$mode_chnge</td>\n";
1822                         print "<td class=\"link\">";
1823                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1824                                 if ($action eq 'commitdiff') {
1825                                         # link to patch
1826                                         $patchno++;
1827                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1828                                 } else {
1829                                         print $cgi->a({-href => href(action=>"blobdiff",
1830                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1831                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1832                                                                      file_name=>$diff{'file'})},
1833                                                       "diff");
1834                                 }
1835                                 print " | ";
1836                         }
1837                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1838                                                      file_name=>$diff{'file'})},
1839                                       "blame") . " | ";
1840                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1841                                                      file_name=>$diff{'file'})},
1842                                       "history");
1843                         print "</td>\n";
1844
1845                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1846                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1847                         my $nstatus = $status_name{$diff{'status'}};
1848                         my $mode_chng = "";
1849                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1850                                 # mode also for directories, so we cannot use $to_mode_str
1851                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1852                         }
1853                         print "<td>" .
1854                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1855                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1856                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1857                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1858                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1859                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1860                                       -class => "list"}, esc_html($diff{'from_file'})) .
1861                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1862                               "<td class=\"link\">";
1863                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1864                                 if ($action eq 'commitdiff') {
1865                                         # link to patch
1866                                         $patchno++;
1867                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1868                                 } else {
1869                                         print $cgi->a({-href => href(action=>"blobdiff",
1870                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1871                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1872                                                                      file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1873                                                       "diff");
1874                                 }
1875                                 print " | ";
1876                         }
1877                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1878                                                      file_name=>$diff{'from_file'})},
1879                                       "blame") . " | ";
1880                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1881                                                      file_name=>$diff{'from_file'})},
1882                                       "history");
1883                         print "</td>\n";
1884
1885                 } # we should not encounter Unmerged (U) or Unknown (X) status
1886                 print "</tr>\n";
1887         }
1888         print "</table>\n";
1889 }
1890
1891 sub git_patchset_body {
1892         my ($fd, $difftree, $hash, $hash_parent) = @_;
1893
1894         my $patch_idx = 0;
1895         my $in_header = 0;
1896         my $patch_found = 0;
1897         my $diffinfo;
1898
1899         print "<div class=\"patchset\">\n";
1900
1901         LINE:
1902         while (my $patch_line = <$fd>) {
1903                 chomp $patch_line;
1904
1905                 if ($patch_line =~ m/^diff /) { # "git diff" header
1906                         # beginning of patch (in patchset)
1907                         if ($patch_found) {
1908                                 # close previous patch
1909                                 print "</div>\n"; # class="patch"
1910                         } else {
1911                                 # first patch in patchset
1912                                 $patch_found = 1;
1913                         }
1914                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1915
1916                         if (ref($difftree->[$patch_idx]) eq "HASH") {
1917                                 $diffinfo = $difftree->[$patch_idx];
1918                         } else {
1919                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1920                         }
1921                         $patch_idx++;
1922
1923                         # for now, no extended header, hence we skip empty patches
1924                         # companion to  next LINE if $in_header;
1925                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1926                                 $in_header = 1;
1927                                 next LINE;
1928                         }
1929
1930                         if ($diffinfo->{'status'} eq "A") { # added
1931                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1932                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1933                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1934                                               $diffinfo->{'to_id'}) . "(new)" .
1935                                       "</div>\n"; # class="diff_info"
1936
1937                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
1938                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1939                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1940                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1941                                               $diffinfo->{'from_id'}) . "(deleted)" .
1942                                       "</div>\n"; # class="diff_info"
1943
1944                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
1945                                  $diffinfo->{'status'} eq "C" || # copied
1946                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1947                                 print "<div class=\"diff_info\">" .
1948                                       file_type($diffinfo->{'from_mode'}) . ":" .
1949                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1950                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1951                                               $diffinfo->{'from_id'}) .
1952                                       " -> " .
1953                                       file_type($diffinfo->{'to_mode'}) . ":" .
1954                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1955                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1956                                               $diffinfo->{'to_id'});
1957                                 print "</div>\n"; # class="diff_info"
1958
1959                         } else { # modified, mode changed, ...
1960                                 print "<div class=\"diff_info\">" .
1961                                       file_type($diffinfo->{'from_mode'}) . ":" .
1962                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1963                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1964                                               $diffinfo->{'from_id'}) .
1965                                       " -> " .
1966                                       file_type($diffinfo->{'to_mode'}) . ":" .
1967                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1968                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1969                                               $diffinfo->{'to_id'});
1970                                 print "</div>\n"; # class="diff_info"
1971                         }
1972
1973                         #print "<div class=\"diff extended_header\">\n";
1974                         $in_header = 1;
1975                         next LINE;
1976                 } # start of patch in patchset
1977
1978
1979                 if ($in_header && $patch_line =~ m/^---/) {
1980                         #print "</div>\n"; # class="diff extended_header"
1981                         $in_header = 0;
1982
1983                         my $file = $diffinfo->{'from_file'};
1984                         $file  ||= $diffinfo->{'file'};
1985                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1986                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
1987                                         -class => "list"}, esc_html($file));
1988                         $patch_line =~ s|a/.*$|a/$file|g;
1989                         print "<div class=\"diff from_file\">$patch_line</div>\n";
1990
1991                         $patch_line = <$fd>;
1992                         chomp $patch_line;
1993
1994                         #$patch_line =~ m/^+++/;
1995                         $file    = $diffinfo->{'to_file'};
1996                         $file  ||= $diffinfo->{'file'};
1997                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1998                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
1999                                         -class => "list"}, esc_html($file));
2000                         $patch_line =~ s|b/.*|b/$file|g;
2001                         print "<div class=\"diff to_file\">$patch_line</div>\n";
2002
2003                         next LINE;
2004                 }
2005                 next LINE if $in_header;
2006
2007                 print format_diff_line($patch_line);
2008         }
2009         print "</div>\n" if $patch_found; # class="patch"
2010
2011         print "</div>\n"; # class="patchset"
2012 }
2013
2014 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2015
2016 sub git_shortlog_body {
2017         # uses global variable $project
2018         my ($revlist, $from, $to, $refs, $extra) = @_;
2019
2020         $from = 0 unless defined $from;
2021         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2022
2023         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2024         my $alternate = 1;
2025         for (my $i = $from; $i <= $to; $i++) {
2026                 my $commit = $revlist->[$i];
2027                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2028                 my $ref = format_ref_marker($refs, $commit);
2029                 my %co = parse_commit($commit);
2030                 if ($alternate) {
2031                         print "<tr class=\"dark\">\n";
2032                 } else {
2033                         print "<tr class=\"light\">\n";
2034                 }
2035                 $alternate ^= 1;
2036                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2037                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2038                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2039                       "<td>";
2040                 print format_subject_html($co{'title'}, $co{'title_short'},
2041                                           href(action=>"commit", hash=>$commit), $ref);
2042                 print "</td>\n" .
2043                       "<td class=\"link\">" .
2044                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2045                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") . " | " .
2046                       $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2047                 print "</td>\n" .
2048                       "</tr>\n";
2049         }
2050         if (defined $extra) {
2051                 print "<tr>\n" .
2052                       "<td colspan=\"4\">$extra</td>\n" .
2053                       "</tr>\n";
2054         }
2055         print "</table>\n";
2056 }
2057
2058 sub git_history_body {
2059         # Warning: assumes constant type (blob or tree) during history
2060         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2061
2062         $from = 0 unless defined $from;
2063         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2064
2065         print "<table class=\"history\" cellspacing=\"0\">\n";
2066         my $alternate = 1;
2067         for (my $i = $from; $i <= $to; $i++) {
2068                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2069                         next;
2070                 }
2071
2072                 my $commit = $1;
2073                 my %co = parse_commit($commit);
2074                 if (!%co) {
2075                         next;
2076                 }
2077
2078                 my $ref = format_ref_marker($refs, $commit);
2079
2080                 if ($alternate) {
2081                         print "<tr class=\"dark\">\n";
2082                 } else {
2083                         print "<tr class=\"light\">\n";
2084                 }
2085                 $alternate ^= 1;
2086                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2087                       # shortlog uses      chop_str($co{'author_name'}, 10)
2088                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2089                       "<td>";
2090                 # originally git_history used chop_str($co{'title'}, 50)
2091                 print format_subject_html($co{'title'}, $co{'title_short'},
2092                                           href(action=>"commit", hash=>$commit), $ref);
2093                 print "</td>\n" .
2094                       "<td class=\"link\">" .
2095                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2096                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2097
2098                 if ($ftype eq 'blob') {
2099                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2100                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2101                         if (defined $blob_current && defined $blob_parent &&
2102                                         $blob_current ne $blob_parent) {
2103                                 print " | " .
2104                                         $cgi->a({-href => href(action=>"blobdiff",
2105                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2106                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2107                                                                file_name=>$file_name)},
2108                                                 "diff to current");
2109                         }
2110                 }
2111                 print "</td>\n" .
2112                       "</tr>\n";
2113         }
2114         if (defined $extra) {
2115                 print "<tr>\n" .
2116                       "<td colspan=\"4\">$extra</td>\n" .
2117                       "</tr>\n";
2118         }
2119         print "</table>\n";
2120 }
2121
2122 sub git_tags_body {
2123         # uses global variable $project
2124         my ($taglist, $from, $to, $extra) = @_;
2125         $from = 0 unless defined $from;
2126         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2127
2128         print "<table class=\"tags\" cellspacing=\"0\">\n";
2129         my $alternate = 1;
2130         for (my $i = $from; $i <= $to; $i++) {
2131                 my $entry = $taglist->[$i];
2132                 my %tag = %$entry;
2133                 my $comment_lines = $tag{'comment'};
2134                 my $comment = shift @$comment_lines;
2135                 my $comment_short;
2136                 if (defined $comment) {
2137                         $comment_short = chop_str($comment, 30, 5);
2138                 }
2139                 if ($alternate) {
2140                         print "<tr class=\"dark\">\n";
2141                 } else {
2142                         print "<tr class=\"light\">\n";
2143                 }
2144                 $alternate ^= 1;
2145                 print "<td><i>$tag{'age'}</i></td>\n" .
2146                       "<td>" .
2147                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2148                                -class => "list name"}, esc_html($tag{'name'})) .
2149                       "</td>\n" .
2150                       "<td>";
2151                 if (defined $comment) {
2152                         print format_subject_html($comment, $comment_short,
2153                                                   href(action=>"tag", hash=>$tag{'id'}));
2154                 }
2155                 print "</td>\n" .
2156                       "<td class=\"selflink\">";
2157                 if ($tag{'type'} eq "tag") {
2158                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2159                 } else {
2160                         print "&nbsp;";
2161                 }
2162                 print "</td>\n" .
2163                       "<td class=\"link\">" . " | " .
2164                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2165                 if ($tag{'reftype'} eq "commit") {
2166                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2167                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2168                 } elsif ($tag{'reftype'} eq "blob") {
2169                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2170                 }
2171                 print "</td>\n" .
2172                       "</tr>";
2173         }
2174         if (defined $extra) {
2175                 print "<tr>\n" .
2176                       "<td colspan=\"5\">$extra</td>\n" .
2177                       "</tr>\n";
2178         }
2179         print "</table>\n";
2180 }
2181
2182 sub git_heads_body {
2183         # uses global variable $project
2184         my ($headlist, $head, $from, $to, $extra) = @_;
2185         $from = 0 unless defined $from;
2186         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2187
2188         print "<table class=\"heads\" cellspacing=\"0\">\n";
2189         my $alternate = 1;
2190         for (my $i = $from; $i <= $to; $i++) {
2191                 my $entry = $headlist->[$i];
2192                 my %tag = %$entry;
2193                 my $curr = $tag{'id'} eq $head;
2194                 if ($alternate) {
2195                         print "<tr class=\"dark\">\n";
2196                 } else {
2197                         print "<tr class=\"light\">\n";
2198                 }
2199                 $alternate ^= 1;
2200                 print "<td><i>$tag{'age'}</i></td>\n" .
2201                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2202                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2203                                -class => "list name"},esc_html($tag{'name'})) .
2204                       "</td>\n" .
2205                       "<td class=\"link\">" .
2206                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2207                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2208                       $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2209                       "</td>\n" .
2210                       "</tr>";
2211         }
2212         if (defined $extra) {
2213                 print "<tr>\n" .
2214                       "<td colspan=\"3\">$extra</td>\n" .
2215                       "</tr>\n";
2216         }
2217         print "</table>\n";
2218 }
2219
2220 ## ======================================================================
2221 ## ======================================================================
2222 ## actions
2223
2224 sub git_project_list {
2225         my $order = $cgi->param('o');
2226         if (defined $order && $order !~ m/project|descr|owner|age/) {
2227                 die_error(undef, "Unknown order parameter");
2228         }
2229
2230         my @list = git_get_projects_list();
2231         my @projects;
2232         if (!@list) {
2233                 die_error(undef, "No projects found");
2234         }
2235         foreach my $pr (@list) {
2236                 my $head = git_get_head_hash($pr->{'path'});
2237                 if (!defined $head) {
2238                         next;
2239                 }
2240                 $git_dir = "$projectroot/$pr->{'path'}";
2241                 my %co = parse_commit($head);
2242                 if (!%co) {
2243                         next;
2244                 }
2245                 $pr->{'commit'} = \%co;
2246                 if (!defined $pr->{'descr'}) {
2247                         my $descr = git_get_project_description($pr->{'path'}) || "";
2248                         $pr->{'descr'} = chop_str($descr, 25, 5);
2249                 }
2250                 if (!defined $pr->{'owner'}) {
2251                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2252                 }
2253                 push @projects, $pr;
2254         }
2255
2256         git_header_html();
2257         if (-f $home_text) {
2258                 print "<div class=\"index_include\">\n";
2259                 open (my $fd, $home_text);
2260                 print <$fd>;
2261                 close $fd;
2262                 print "</div>\n";
2263         }
2264         print "<table class=\"project_list\">\n" .
2265               "<tr>\n";
2266         $order ||= "project";
2267         if ($order eq "project") {
2268                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2269                 print "<th>Project</th>\n";
2270         } else {
2271                 print "<th>" .
2272                       $cgi->a({-href => href(project=>undef, order=>'project'),
2273                                -class => "header"}, "Project") .
2274                       "</th>\n";
2275         }
2276         if ($order eq "descr") {
2277                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2278                 print "<th>Description</th>\n";
2279         } else {
2280                 print "<th>" .
2281                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2282                                -class => "header"}, "Description") .
2283                       "</th>\n";
2284         }
2285         if ($order eq "owner") {
2286                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2287                 print "<th>Owner</th>\n";
2288         } else {
2289                 print "<th>" .
2290                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2291                                -class => "header"}, "Owner") .
2292                       "</th>\n";
2293         }
2294         if ($order eq "age") {
2295                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2296                 print "<th>Last Change</th>\n";
2297         } else {
2298                 print "<th>" .
2299                       $cgi->a({-href => href(project=>undef, order=>'age'),
2300                                -class => "header"}, "Last Change") .
2301                       "</th>\n";
2302         }
2303         print "<th></th>\n" .
2304               "</tr>\n";
2305         my $alternate = 1;
2306         foreach my $pr (@projects) {
2307                 if ($alternate) {
2308                         print "<tr class=\"dark\">\n";
2309                 } else {
2310                         print "<tr class=\"light\">\n";
2311                 }
2312                 $alternate ^= 1;
2313                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2314                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2315                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2316                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2317                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2318                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2319                       "<td class=\"link\">" .
2320                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2321                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2322                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2323                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2324                       "</td>\n" .
2325                       "</tr>\n";
2326         }
2327         print "</table>\n";
2328         git_footer_html();
2329 }
2330
2331 sub git_project_index {
2332         my @projects = git_get_projects_list();
2333
2334         print $cgi->header(
2335                 -type => 'text/plain',
2336                 -charset => 'utf-8',
2337                 -content_disposition => 'inline; filename="index.aux"');
2338
2339         foreach my $pr (@projects) {
2340                 if (!exists $pr->{'owner'}) {
2341                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2342                 }
2343
2344                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2345                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2346                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2347                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2348                 $path  =~ s/ /\+/g;
2349                 $owner =~ s/ /\+/g;
2350
2351                 print "$path $owner\n";
2352         }
2353 }
2354
2355 sub git_summary {
2356         my $descr = git_get_project_description($project) || "none";
2357         my $head = git_get_head_hash($project);
2358         my %co = parse_commit($head);
2359         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2360
2361         my $owner = git_get_project_owner($project);
2362
2363         my ($reflist, $refs) = git_get_refs_list();
2364
2365         my @taglist;
2366         my @headlist;
2367         foreach my $ref (@$reflist) {
2368                 if ($ref->{'name'} =~ s!^heads/!!) {
2369                         push @headlist, $ref;
2370                 } else {
2371                         $ref->{'name'} =~ s!^tags/!!;
2372                         push @taglist, $ref;
2373                 }
2374         }
2375
2376         git_header_html();
2377         git_print_page_nav('summary','', $head);
2378
2379         print "<div class=\"title\">&nbsp;</div>\n";
2380         print "<table cellspacing=\"0\">\n" .
2381               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2382               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2383               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2384         # use per project git URL list in $projectroot/$project/cloneurl
2385         # or make project git URL from git base URL and project name
2386         my $url_tag = "URL";
2387         my @url_list = git_get_project_url_list($project);
2388         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2389         foreach my $git_url (@url_list) {
2390                 next unless $git_url;
2391                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2392                 $url_tag = "";
2393         }
2394         print "</table>\n";
2395
2396         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2397                 git_get_head_hash($project)
2398                 or die_error(undef, "Open git-rev-list failed");
2399         my @revlist = map { chomp; $_ } <$fd>;
2400         close $fd;
2401         git_print_header_div('shortlog');
2402         git_shortlog_body(\@revlist, 0, 15, $refs,
2403                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2404
2405         if (@taglist) {
2406                 git_print_header_div('tags');
2407                 git_tags_body(\@taglist, 0, 15,
2408                               $cgi->a({-href => href(action=>"tags")}, "..."));
2409         }
2410
2411         if (@headlist) {
2412                 git_print_header_div('heads');
2413                 git_heads_body(\@headlist, $head, 0, 15,
2414                                $cgi->a({-href => href(action=>"heads")}, "..."));
2415         }
2416
2417         git_footer_html();
2418 }
2419
2420 sub git_tag {
2421         my $head = git_get_head_hash($project);
2422         git_header_html();
2423         git_print_page_nav('','', $head,undef,$head);
2424         my %tag = parse_tag($hash);
2425         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2426         print "<div class=\"title_text\">\n" .
2427               "<table cellspacing=\"0\">\n" .
2428               "<tr>\n" .
2429               "<td>object</td>\n" .
2430               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2431                                $tag{'object'}) . "</td>\n" .
2432               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2433                                               $tag{'type'}) . "</td>\n" .
2434               "</tr>\n";
2435         if (defined($tag{'author'})) {
2436                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2437                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2438                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2439                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2440                         "</td></tr>\n";
2441         }
2442         print "</table>\n\n" .
2443               "</div>\n";
2444         print "<div class=\"page_body\">";
2445         my $comment = $tag{'comment'};
2446         foreach my $line (@$comment) {
2447                 print esc_html($line) . "<br/>\n";
2448         }
2449         print "</div>\n";
2450         git_footer_html();
2451 }
2452
2453 sub git_blame_flush_chunk {
2454         my ($name, $revdata, $color, $rev, @line) = @_;
2455         my $label = substr($rev, 0, 8);
2456         my $line = scalar(@line);
2457         my $cnt = 0;
2458         my $pop = '';
2459
2460         if ($revdata->{$rev} ne '') {
2461                 $pop = ' title="' . esc_html($revdata->{$rev}) . '"';
2462         }
2463
2464         for (@line) {
2465                 my ($lineno, $data) = @$_;
2466                 $cnt++;
2467                 print "<tr class=\"$color\">\n";
2468                 if ($cnt == 1) {
2469                         print "<td class=\"sha1\"$pop";
2470                         if ($line > 1) {
2471                                 print " rowspan=\"$line\"";
2472                         }
2473                         print ">";
2474                         print $cgi->a({-href => href(action=>"commit",
2475                                                      hash=>$rev,
2476                                                      file_name=>$name)},
2477                                       $label);
2478                         print "</td>\n";
2479                 }
2480                 print "<td class=\"linenr\">".
2481                     "<a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2482                     esc_html($lineno) . "</a></td>\n";
2483                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2484                 print "</tr>\n";
2485         }
2486 }
2487
2488 # We can have up to N*2 lines.  If it is more than N lines, split it
2489 # into two to avoid orphans.
2490 sub git_blame_flush_chunk_1 {
2491         my ($chunk_cap, $name, $revdata, $color, $rev, @chunk) = @_;
2492         if ($chunk_cap < @chunk) {
2493                 my @first = splice(@chunk, 0, @chunk/2);
2494                 git_blame_flush_chunk($name,
2495                                       $revdata,
2496                                       $color,
2497                                       $rev,
2498                                       @first);
2499         }
2500         git_blame_flush_chunk($name,
2501                               $revdata,
2502                               $color,
2503                               $rev,
2504                               @chunk);
2505 }
2506
2507 sub git_blame2 {
2508         my $fd;
2509         my $ftype;
2510         my $chunk_cap = 20;
2511
2512         my ($have_blame) = gitweb_check_feature('blame');
2513         if (!$have_blame) {
2514                 die_error('403 Permission denied', "Permission denied");
2515         }
2516         die_error('404 Not Found', "File name not defined") if (!$file_name);
2517         $hash_base ||= git_get_head_hash($project);
2518         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2519         my %co = parse_commit($hash_base)
2520                 or die_error(undef, "Reading commit failed");
2521         if (!defined $hash) {
2522                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2523                         or die_error(undef, "Error looking up file");
2524         }
2525         $ftype = git_get_type($hash);
2526         if ($ftype !~ "blob") {
2527                 die_error("400 Bad Request", "Object is not a blob");
2528         }
2529         open ($fd, "-|", git_cmd(), "blame", '-l', '--', $file_name, $hash_base)
2530                 or die_error(undef, "Open git-blame failed");
2531         git_header_html();
2532         my $formats_nav =
2533                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2534                         "blob") .
2535                 " | " .
2536                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2537                         "history") .
2538                 " | " .
2539                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2540                         "HEAD");
2541         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2542         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2543         git_print_page_path($file_name, $ftype, $hash_base);
2544         my @rev_color = (qw(light2 dark2));
2545         my $num_colors = scalar(@rev_color);
2546         my $current_color = 0;
2547         my $last_rev;
2548         print <<HTML;
2549 <div class="page_body">
2550 <table class="blame">
2551 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2552 HTML
2553         my @chunk = ();
2554         my %revdata = ();
2555         while (<$fd>) {
2556                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2557                 my ($full_rev, $author, $date, $lineno, $data) =
2558                     /^([0-9a-f]{40}).*?\s\((.*?)\s+([-\d]+ [:\d]+ [-+\d]+)\s+(\d+)\)\s(.*)/;
2559                 if (!exists $revdata{$full_rev}) {
2560                         $revdata{$full_rev} = "$author, $date";
2561                 }
2562                 if (!defined $last_rev) {
2563                         $last_rev = $full_rev;
2564                 } elsif ($last_rev ne $full_rev) {
2565                         git_blame_flush_chunk_1($chunk_cap,
2566                                                 $file_name,
2567                                                 \%revdata,
2568                                                 $rev_color[$current_color],
2569                                                 $last_rev, @chunk);
2570                         @chunk = ();
2571                         $last_rev = $full_rev;
2572                         $current_color = ++$current_color % $num_colors;
2573                 }
2574                 elsif ($chunk_cap * 2 < @chunk) {
2575                         # We have more than N*2 lines from the same
2576                         # revision.  Flush N lines and leave N lines
2577                         # in @chunk to avoid orphaned lines.
2578                         my @first = splice(@chunk, 0, $chunk_cap);
2579                         git_blame_flush_chunk($file_name,
2580                                               \%revdata,
2581                                               $rev_color[$current_color],
2582                                               $last_rev, @first);
2583                 }
2584                 push @chunk, [$lineno, $data];
2585         }
2586         if (@chunk) {
2587                 git_blame_flush_chunk_1($chunk_cap,
2588                                         $file_name,
2589                                         \%revdata,
2590                                         $rev_color[$current_color],
2591                                         $last_rev, @chunk);
2592         }
2593         print "</table>\n";
2594         print "</div>";
2595         close $fd
2596                 or print "Reading blob failed\n";
2597         git_footer_html();
2598 }
2599
2600 sub git_blame {
2601         my $fd;
2602
2603         my ($have_blame) = gitweb_check_feature('blame');
2604         if (!$have_blame) {
2605                 die_error('403 Permission denied', "Permission denied");
2606         }
2607         die_error('404 Not Found', "File name not defined") if (!$file_name);
2608         $hash_base ||= git_get_head_hash($project);
2609         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2610         my %co = parse_commit($hash_base)
2611                 or die_error(undef, "Reading commit failed");
2612         if (!defined $hash) {
2613                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2614                         or die_error(undef, "Error lookup file");
2615         }
2616         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2617                 or die_error(undef, "Open git-annotate failed");
2618         git_header_html();
2619         my $formats_nav =
2620                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2621                         "blob") .
2622                 " | " .
2623                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2624                         "history") .
2625                 " | " .
2626                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2627                         "HEAD");
2628         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2629         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2630         git_print_page_path($file_name, 'blob', $hash_base);
2631         print "<div class=\"page_body\">\n";
2632         print <<HTML;
2633 <table class="blame">
2634   <tr>
2635     <th>Commit</th>
2636     <th>Age</th>
2637     <th>Author</th>
2638     <th>Line</th>
2639     <th>Data</th>
2640   </tr>
2641 HTML
2642         my @line_class = (qw(light dark));
2643         my $line_class_len = scalar (@line_class);
2644         my $line_class_num = $#line_class;
2645         while (my $line = <$fd>) {
2646                 my $long_rev;
2647                 my $short_rev;
2648                 my $author;
2649                 my $time;
2650                 my $lineno;
2651                 my $data;
2652                 my $age;
2653                 my $age_str;
2654                 my $age_class;
2655
2656                 chomp $line;
2657                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2658
2659                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2660                         $long_rev = $1;
2661                         $author   = $2;
2662                         $time     = $3;
2663                         $lineno   = $4;
2664                         $data     = $5;
2665                 } else {
2666                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2667                         next;
2668                 }
2669                 $short_rev  = substr ($long_rev, 0, 8);
2670                 $age        = time () - $time;
2671                 $age_str    = age_string ($age);
2672                 $age_str    =~ s/ /&nbsp;/g;
2673                 $age_class  = age_class($age);
2674                 $author     = esc_html ($author);
2675                 $author     =~ s/ /&nbsp;/g;
2676
2677                 $data = untabify($data);
2678                 $data = esc_html ($data);
2679
2680                 print <<HTML;
2681   <tr class="$line_class[$line_class_num]">
2682     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2683     <td class="$age_class">$age_str</td>
2684     <td>$author</td>
2685     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2686     <td class="pre">$data</td>
2687   </tr>
2688 HTML
2689         } # while (my $line = <$fd>)
2690         print "</table>\n\n";
2691         close $fd
2692                 or print "Reading blob failed.\n";
2693         print "</div>";
2694         git_footer_html();
2695 }
2696
2697 sub git_tags {
2698         my $head = git_get_head_hash($project);
2699         git_header_html();
2700         git_print_page_nav('','', $head,undef,$head);
2701         git_print_header_div('summary', $project);
2702
2703         my ($taglist) = git_get_refs_list("tags");
2704         if (@$taglist) {
2705                 git_tags_body($taglist);
2706         }
2707         git_footer_html();
2708 }
2709
2710 sub git_heads {
2711         my $head = git_get_head_hash($project);
2712         git_header_html();
2713         git_print_page_nav('','', $head,undef,$head);
2714         git_print_header_div('summary', $project);
2715
2716         my ($headlist) = git_get_refs_list("heads");
2717         if (@$headlist) {
2718                 git_heads_body($headlist, $head);
2719         }
2720         git_footer_html();
2721 }
2722
2723 sub git_blob_plain {
2724         my $expires;
2725
2726         if (!defined $hash) {
2727                 if (defined $file_name) {
2728                         my $base = $hash_base || git_get_head_hash($project);
2729                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2730                                 or die_error(undef, "Error lookup file");
2731                 } else {
2732                         die_error(undef, "No file name defined");
2733                 }
2734         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2735                 # blobs defined by non-textual hash id's can be cached
2736                 $expires = "+1d";
2737         }
2738
2739         my $type = shift;
2740         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2741                 or die_error(undef, "Couldn't cat $file_name, $hash");
2742
2743         $type ||= blob_mimetype($fd, $file_name);
2744
2745         # save as filename, even when no $file_name is given
2746         my $save_as = "$hash";
2747         if (defined $file_name) {
2748                 $save_as = $file_name;
2749         } elsif ($type =~ m/^text\//) {
2750                 $save_as .= '.txt';
2751         }
2752
2753         print $cgi->header(
2754                 -type => "$type",
2755                 -expires=>$expires,
2756                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
2757         undef $/;
2758         binmode STDOUT, ':raw';
2759         print <$fd>;
2760         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2761         $/ = "\n";
2762         close $fd;
2763 }
2764
2765 sub git_blob {
2766         my $expires;
2767
2768         if (!defined $hash) {
2769                 if (defined $file_name) {
2770                         my $base = $hash_base || git_get_head_hash($project);
2771                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2772                                 or die_error(undef, "Error lookup file");
2773                 } else {
2774                         die_error(undef, "No file name defined");
2775                 }
2776         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2777                 # blobs defined by non-textual hash id's can be cached
2778                 $expires = "+1d";
2779         }
2780
2781         my ($have_blame) = gitweb_check_feature('blame');
2782         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2783                 or die_error(undef, "Couldn't cat $file_name, $hash");
2784         my $mimetype = blob_mimetype($fd, $file_name);
2785         if ($mimetype !~ m/^text\//) {
2786                 close $fd;
2787                 return git_blob_plain($mimetype);
2788         }
2789         git_header_html(undef, $expires);
2790         my $formats_nav = '';
2791         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2792                 if (defined $file_name) {
2793                         if ($have_blame) {
2794                                 $formats_nav .=
2795                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2796                                                                hash=>$hash, file_name=>$file_name)},
2797                                                 "blame") .
2798                                         " | ";
2799                         }
2800                         $formats_nav .=
2801                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2802                                                        hash=>$hash, file_name=>$file_name)},
2803                                         "history") .
2804                                 " | " .
2805                                 $cgi->a({-href => href(action=>"blob_plain",
2806                                                        hash=>$hash, file_name=>$file_name)},
2807                                         "raw") .
2808                                 " | " .
2809                                 $cgi->a({-href => href(action=>"blob",
2810                                                        hash_base=>"HEAD", file_name=>$file_name)},
2811                                         "HEAD");
2812                 } else {
2813                         $formats_nav .=
2814                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2815                 }
2816                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2817                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2818         } else {
2819                 print "<div class=\"page_nav\">\n" .
2820                       "<br/><br/></div>\n" .
2821                       "<div class=\"title\">$hash</div>\n";
2822         }
2823         git_print_page_path($file_name, "blob", $hash_base);
2824         print "<div class=\"page_body\">\n";
2825         my $nr;
2826         while (my $line = <$fd>) {
2827                 chomp $line;
2828                 $nr++;
2829                 $line = untabify($line);
2830                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2831                        $nr, $nr, $nr, esc_html($line);
2832         }
2833         close $fd
2834                 or print "Reading blob failed.\n";
2835         print "</div>";
2836         git_footer_html();
2837 }
2838
2839 sub git_tree {
2840         my $have_snapshot = gitweb_have_snapshot();
2841
2842         if (!defined $hash_base) {
2843                 $hash_base = "HEAD";
2844         }
2845         if (!defined $hash) {
2846                 if (defined $file_name) {
2847                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2848                 } else {
2849                         $hash = $hash_base;
2850                 }
2851         }
2852         $/ = "\0";
2853         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2854                 or die_error(undef, "Open git-ls-tree failed");
2855         my @entries = map { chomp; $_ } <$fd>;
2856         close $fd or die_error(undef, "Reading tree failed");
2857         $/ = "\n";
2858
2859         my $refs = git_get_references();
2860         my $ref = format_ref_marker($refs, $hash_base);
2861         git_header_html();
2862         my $base = "";
2863         my ($have_blame) = gitweb_check_feature('blame');
2864         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2865                 my @views_nav = ();
2866                 if (defined $file_name) {
2867                         push @views_nav,
2868                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2869                                                        hash=>$hash, file_name=>$file_name)},
2870                                         "history"),
2871                                 $cgi->a({-href => href(action=>"tree",
2872                                                        hash_base=>"HEAD", file_name=>$file_name)},
2873                                         "HEAD"),
2874                 }
2875                 if ($have_snapshot) {
2876                         # FIXME: Should be available when we have no hash base as well.
2877                         push @views_nav,
2878                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2879                                         "snapshot");
2880                 }
2881                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2882                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2883         } else {
2884                 undef $hash_base;
2885                 print "<div class=\"page_nav\">\n";
2886                 print "<br/><br/></div>\n";
2887                 print "<div class=\"title\">$hash</div>\n";
2888         }
2889         if (defined $file_name) {
2890                 $base = esc_html("$file_name/");
2891         }
2892         git_print_page_path($file_name, 'tree', $hash_base);
2893         print "<div class=\"page_body\">\n";
2894         print "<table cellspacing=\"0\">\n";
2895         my $alternate = 1;
2896         foreach my $line (@entries) {
2897                 my %t = parse_ls_tree_line($line, -z => 1);
2898
2899                 if ($alternate) {
2900                         print "<tr class=\"dark\">\n";
2901                 } else {
2902                         print "<tr class=\"light\">\n";
2903                 }
2904                 $alternate ^= 1;
2905
2906                 git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2907
2908                 print "</tr>\n";
2909         }
2910         print "</table>\n" .
2911               "</div>";
2912         git_footer_html();
2913 }
2914
2915 sub git_snapshot {
2916         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2917         my $have_snapshot = (defined $ctype && defined $suffix);
2918         if (!$have_snapshot) {
2919                 die_error('403 Permission denied', "Permission denied");
2920         }
2921
2922         if (!defined $hash) {
2923                 $hash = git_get_head_hash($project);
2924         }
2925
2926         my $filename = basename($project) . "-$hash.tar.$suffix";
2927
2928         print $cgi->header(
2929                 -type => 'application/x-tar',
2930                 -content_encoding => $ctype,
2931                 -content_disposition => 'inline; filename="' . "$filename" . '"',
2932                 -status => '200 OK');
2933
2934         my $git_command = git_cmd_str();
2935         open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2936                 die_error(undef, "Execute git-tar-tree failed.");
2937         binmode STDOUT, ':raw';
2938         print <$fd>;
2939         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2940         close $fd;
2941
2942 }
2943
2944 sub git_log {
2945         my $head = git_get_head_hash($project);
2946         if (!defined $hash) {
2947                 $hash = $head;
2948         }
2949         if (!defined $page) {
2950                 $page = 0;
2951         }
2952         my $refs = git_get_references();
2953
2954         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2955         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2956                 or die_error(undef, "Open git-rev-list failed");
2957         my @revlist = map { chomp; $_ } <$fd>;
2958         close $fd;
2959
2960         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2961
2962         git_header_html();
2963         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2964
2965         if (!@revlist) {
2966                 my %co = parse_commit($hash);
2967
2968                 git_print_header_div('summary', $project);
2969                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2970         }
2971         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2972                 my $commit = $revlist[$i];
2973                 my $ref = format_ref_marker($refs, $commit);
2974                 my %co = parse_commit($commit);
2975                 next if !%co;
2976                 my %ad = parse_date($co{'author_epoch'});
2977                 git_print_header_div('commit',
2978                                "<span class=\"age\">$co{'age_string'}</span>" .
2979                                esc_html($co{'title'}) . $ref,
2980                                $commit);
2981                 print "<div class=\"title_text\">\n" .
2982                       "<div class=\"log_link\">\n" .
2983                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2984                       " | " .
2985                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2986                       " | " .
2987                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
2988                       "<br/>\n" .
2989                       "</div>\n" .
2990                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2991                       "</div>\n";
2992
2993                 print "<div class=\"log_body\">\n";
2994                 git_print_simplified_log($co{'comment'});
2995                 print "</div>\n";
2996         }
2997         git_footer_html();
2998 }
2999
3000 sub git_commit {
3001         my %co = parse_commit($hash);
3002         if (!%co) {
3003                 die_error(undef, "Unknown commit object");
3004         }
3005         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3006         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3007
3008         my $parent = $co{'parent'};
3009         if (!defined $parent) {
3010                 $parent = "--root";
3011         }
3012         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
3013                 or die_error(undef, "Open git-diff-tree failed");
3014         my @difftree = map { chomp; $_ } <$fd>;
3015         close $fd or die_error(undef, "Reading git-diff-tree failed");
3016
3017         # non-textual hash id's can be cached
3018         my $expires;
3019         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3020                 $expires = "+1d";
3021         }
3022         my $refs = git_get_references();
3023         my $ref = format_ref_marker($refs, $co{'id'});
3024
3025         my $have_snapshot = gitweb_have_snapshot();
3026
3027         my @views_nav = ();
3028         if (defined $file_name && defined $co{'parent'}) {
3029                 push @views_nav,
3030                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3031                                 "blame");
3032         }
3033         if (defined $co{'parent'}) {
3034                 push @views_nav,
3035                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash)}, "shortlog"),
3036                         $cgi->a({-href => href(action=>"log", hash=>$hash)}, "log");
3037         }
3038         git_header_html(undef, $expires);
3039         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
3040                            $hash, $co{'tree'}, $hash,
3041                            join (' | ', @views_nav));
3042
3043         if (defined $co{'parent'}) {
3044                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3045         } else {
3046                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3047         }
3048         print "<div class=\"title_text\">\n" .
3049               "<table cellspacing=\"0\">\n";
3050         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3051               "<tr>" .
3052               "<td></td><td> $ad{'rfc2822'}";
3053         if ($ad{'hour_local'} < 6) {
3054                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3055                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3056         } else {
3057                 printf(" (%02d:%02d %s)",
3058                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3059         }
3060         print "</td>" .
3061               "</tr>\n";
3062         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3063         print "<tr><td></td><td> $cd{'rfc2822'}" .
3064               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3065               "</td></tr>\n";
3066         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3067         print "<tr>" .
3068               "<td>tree</td>" .
3069               "<td class=\"sha1\">" .
3070               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3071                        class => "list"}, $co{'tree'}) .
3072               "</td>" .
3073               "<td class=\"link\">" .
3074               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3075                       "tree");
3076         if ($have_snapshot) {
3077                 print " | " .
3078                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3079         }
3080         print "</td>" .
3081               "</tr>\n";
3082         my $parents = $co{'parents'};
3083         foreach my $par (@$parents) {
3084                 print "<tr>" .
3085                       "<td>parent</td>" .
3086                       "<td class=\"sha1\">" .
3087                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3088                                class => "list"}, $par) .
3089                       "</td>" .
3090                       "<td class=\"link\">" .
3091                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3092                       " | " .
3093                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3094                       "</td>" .
3095                       "</tr>\n";
3096         }
3097         print "</table>".
3098               "</div>\n";
3099
3100         print "<div class=\"page_body\">\n";
3101         git_print_log($co{'comment'});
3102         print "</div>\n";
3103
3104         git_difftree_body(\@difftree, $hash, $parent);
3105
3106         git_footer_html();
3107 }
3108
3109 sub git_blobdiff {
3110         my $format = shift || 'html';
3111
3112         my $fd;
3113         my @difftree;
3114         my %diffinfo;
3115         my $expires;
3116
3117         # preparing $fd and %diffinfo for git_patchset_body
3118         # new style URI
3119         if (defined $hash_base && defined $hash_parent_base) {
3120                 if (defined $file_name) {
3121                         # read raw output
3122                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3123                                 "--", $file_name
3124                                 or die_error(undef, "Open git-diff-tree failed");
3125                         @difftree = map { chomp; $_ } <$fd>;
3126                         close $fd
3127                                 or die_error(undef, "Reading git-diff-tree failed");
3128                         @difftree
3129                                 or die_error('404 Not Found', "Blob diff not found");
3130
3131                 } elsif (defined $hash &&
3132                          $hash =~ /[0-9a-fA-F]{40}/) {
3133                         # try to find filename from $hash
3134
3135                         # read filtered raw output
3136                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3137                                 or die_error(undef, "Open git-diff-tree failed");
3138                         @difftree =
3139                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3140                                 # $hash == to_id
3141                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3142                                 map { chomp; $_ } <$fd>;
3143                         close $fd
3144                                 or die_error(undef, "Reading git-diff-tree failed");
3145                         @difftree
3146                                 or die_error('404 Not Found', "Blob diff not found");
3147
3148                 } else {
3149                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3150                 }
3151
3152                 if (@difftree > 1) {
3153                         die_error('404 Not Found', "Ambiguous blob diff specification");
3154                 }
3155
3156                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3157                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3158                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3159
3160                 $hash_parent ||= $diffinfo{'from_id'};
3161                 $hash        ||= $diffinfo{'to_id'};
3162
3163                 # non-textual hash id's can be cached
3164                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3165                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3166                         $expires = '+1d';
3167                 }
3168
3169                 # open patch output
3170                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3171                         '-p', $hash_parent_base, $hash_base,
3172                         "--", $file_name
3173                         or die_error(undef, "Open git-diff-tree failed");
3174         }
3175
3176         # old/legacy style URI
3177         if (!%diffinfo && # if new style URI failed
3178             defined $hash && defined $hash_parent) {
3179                 # fake git-diff-tree raw output
3180                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3181                 $diffinfo{'from_id'} = $hash_parent;
3182                 $diffinfo{'to_id'}   = $hash;
3183                 if (defined $file_name) {
3184                         if (defined $file_parent) {
3185                                 $diffinfo{'status'} = '2';
3186                                 $diffinfo{'from_file'} = $file_parent;
3187                                 $diffinfo{'to_file'}   = $file_name;
3188                         } else { # assume not renamed
3189                                 $diffinfo{'status'} = '1';
3190                                 $diffinfo{'from_file'} = $file_name;
3191                                 $diffinfo{'to_file'}   = $file_name;
3192                         }
3193                 } else { # no filename given
3194                         $diffinfo{'status'} = '2';
3195                         $diffinfo{'from_file'} = $hash_parent;
3196                         $diffinfo{'to_file'}   = $hash;
3197                 }
3198
3199                 # non-textual hash id's can be cached
3200                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3201                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3202                         $expires = '+1d';
3203                 }
3204
3205                 # open patch output
3206                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3207                         or die_error(undef, "Open git-diff failed");
3208         } else  {
3209                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3210                         unless %diffinfo;
3211         }
3212
3213         # header
3214         if ($format eq 'html') {
3215                 my $formats_nav =
3216                         $cgi->a({-href => href(action=>"blobdiff_plain",
3217                                                hash=>$hash, hash_parent=>$hash_parent,
3218                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3219                                                file_name=>$file_name, file_parent=>$file_parent)},
3220                                 "raw");
3221                 git_header_html(undef, $expires);
3222                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3223                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3224                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3225                 } else {
3226                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3227                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3228                 }
3229                 if (defined $file_name) {
3230                         git_print_page_path($file_name, "blob", $hash_base);
3231                 } else {
3232                         print "<div class=\"page_path\"></div>\n";
3233                 }
3234
3235         } elsif ($format eq 'plain') {
3236                 print $cgi->header(
3237                         -type => 'text/plain',
3238                         -charset => 'utf-8',
3239                         -expires => $expires,
3240                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3241
3242                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3243
3244         } else {
3245                 die_error(undef, "Unknown blobdiff format");
3246         }
3247
3248         # patch
3249         if ($format eq 'html') {
3250                 print "<div class=\"page_body\">\n";
3251
3252                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3253                 close $fd;
3254
3255                 print "</div>\n"; # class="page_body"
3256                 git_footer_html();
3257
3258         } else {
3259                 while (my $line = <$fd>) {
3260                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3261                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3262
3263                         print $line;
3264
3265                         last if $line =~ m!^\+\+\+!;
3266                 }
3267                 local $/ = undef;
3268                 print <$fd>;
3269                 close $fd;
3270         }
3271 }
3272
3273 sub git_blobdiff_plain {
3274         git_blobdiff('plain');
3275 }
3276
3277 sub git_commitdiff {
3278         my $format = shift || 'html';
3279         my %co = parse_commit($hash);
3280         if (!%co) {
3281                 die_error(undef, "Unknown commit object");
3282         }
3283         if (!defined $hash_parent) {
3284                 $hash_parent = $co{'parent'} || '--root';
3285         }
3286
3287         # read commitdiff
3288         my $fd;
3289         my @difftree;
3290         if ($format eq 'html') {
3291                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3292                         "--patch-with-raw", "--full-index", $hash_parent, $hash
3293                         or die_error(undef, "Open git-diff-tree failed");
3294
3295                 while (chomp(my $line = <$fd>)) {
3296                         # empty line ends raw part of diff-tree output
3297                         last unless $line;
3298                         push @difftree, $line;
3299                 }
3300
3301         } elsif ($format eq 'plain') {
3302                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3303                         '-p', $hash_parent, $hash
3304                         or die_error(undef, "Open git-diff-tree failed");
3305
3306         } else {
3307                 die_error(undef, "Unknown commitdiff format");
3308         }
3309
3310         # non-textual hash id's can be cached
3311         my $expires;
3312         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3313                 $expires = "+1d";
3314         }
3315
3316         # write commit message
3317         if ($format eq 'html') {
3318                 my $refs = git_get_references();
3319                 my $ref = format_ref_marker($refs, $co{'id'});
3320                 my $formats_nav =
3321                         $cgi->a({-href => href(action=>"commitdiff_plain",
3322                                                hash=>$hash, hash_parent=>$hash_parent)},
3323                                 "raw");
3324
3325                 git_header_html(undef, $expires);
3326                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3327                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3328                 git_print_authorship(\%co);
3329                 print "<div class=\"page_body\">\n";
3330                 print "<div class=\"log\">\n";
3331                 git_print_simplified_log($co{'comment'}, 1); # skip title
3332                 print "</div>\n"; # class="log"
3333
3334         } elsif ($format eq 'plain') {
3335                 my $refs = git_get_references("tags");
3336                 my $tagname = git_get_rev_name_tags($hash);
3337                 my $filename = basename($project) . "-$hash.patch";
3338
3339                 print $cgi->header(
3340                         -type => 'text/plain',
3341                         -charset => 'utf-8',
3342                         -expires => $expires,
3343                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3344                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3345                 print <<TEXT;
3346 From: $co{'author'}
3347 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3348 Subject: $co{'title'}
3349 TEXT
3350                 print "X-Git-Tag: $tagname\n" if $tagname;
3351                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3352
3353                 foreach my $line (@{$co{'comment'}}) {
3354                         print "$line\n";
3355                 }
3356                 print "---\n\n";
3357         }
3358
3359         # write patch
3360         if ($format eq 'html') {
3361                 git_difftree_body(\@difftree, $hash, $hash_parent);
3362                 print "<br/>\n";
3363
3364                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3365                 close $fd;
3366                 print "</div>\n"; # class="page_body"
3367                 git_footer_html();
3368
3369         } elsif ($format eq 'plain') {
3370                 local $/ = undef;
3371                 print <$fd>;
3372                 close $fd
3373                         or print "Reading git-diff-tree failed\n";
3374         }
3375 }
3376
3377 sub git_commitdiff_plain {
3378         git_commitdiff('plain');
3379 }
3380
3381 sub git_history {
3382         if (!defined $hash_base) {
3383                 $hash_base = git_get_head_hash($project);
3384         }
3385         if (!defined $page) {
3386                 $page = 0;
3387         }
3388         my $ftype;
3389         my %co = parse_commit($hash_base);
3390         if (!%co) {
3391                 die_error(undef, "Unknown commit object");
3392         }
3393
3394         my $refs = git_get_references();
3395         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3396
3397         if (!defined $hash && defined $file_name) {
3398                 $hash = git_get_hash_by_path($hash_base, $file_name);
3399         }
3400         if (defined $hash) {
3401                 $ftype = git_get_type($hash);
3402         }
3403
3404         open my $fd, "-|",
3405                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3406                         or die_error(undef, "Open git-rev-list-failed");
3407         my @revlist = map { chomp; $_ } <$fd>;
3408         close $fd
3409                 or die_error(undef, "Reading git-rev-list failed");
3410
3411         my $paging_nav = '';
3412         if ($page > 0) {
3413                 $paging_nav .=
3414                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3415                                                file_name=>$file_name)},
3416                                 "first");
3417                 $paging_nav .= " &sdot; " .
3418                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3419                                                file_name=>$file_name, page=>$page-1),
3420                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3421         } else {
3422                 $paging_nav .= "first";
3423                 $paging_nav .= " &sdot; prev";
3424         }
3425         if ($#revlist >= (100 * ($page+1)-1)) {
3426                 $paging_nav .= " &sdot; " .
3427                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3428                                                file_name=>$file_name, page=>$page+1),
3429                                  -accesskey => "n", -title => "Alt-n"}, "next");
3430         } else {
3431                 $paging_nav .= " &sdot; next";
3432         }
3433         my $next_link = '';
3434         if ($#revlist >= (100 * ($page+1)-1)) {
3435                 $next_link =
3436                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3437                                                file_name=>$file_name, page=>$page+1),
3438                                  -title => "Alt-n"}, "next");
3439         }
3440
3441         git_header_html();
3442         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3443         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3444         git_print_page_path($file_name, $ftype, $hash_base);
3445
3446         git_history_body(\@revlist, ($page * 100), $#revlist,
3447                          $refs, $hash_base, $ftype, $next_link);
3448
3449         git_footer_html();
3450 }
3451
3452 sub git_search {
3453         if (!defined $searchtext) {
3454                 die_error(undef, "Text field empty");
3455         }
3456         if (!defined $hash) {
3457                 $hash = git_get_head_hash($project);
3458         }
3459         my %co = parse_commit($hash);
3460         if (!%co) {
3461                 die_error(undef, "Unknown commit object");
3462         }
3463
3464         my $commit_search = 1;
3465         my $author_search = 0;
3466         my $committer_search = 0;
3467         my $pickaxe_search = 0;
3468         if ($searchtext =~ s/^author\\://i) {
3469                 $author_search = 1;
3470         } elsif ($searchtext =~ s/^committer\\://i) {
3471                 $committer_search = 1;
3472         } elsif ($searchtext =~ s/^pickaxe\\://i) {
3473                 $commit_search = 0;
3474                 $pickaxe_search = 1;
3475
3476                 # pickaxe may take all resources of your box and run for several minutes
3477                 # with every query - so decide by yourself how public you make this feature
3478                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3479                 if (!$have_pickaxe) {
3480                         die_error('403 Permission denied', "Permission denied");
3481                 }
3482         }
3483         git_header_html();
3484         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3485         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3486
3487         print "<table cellspacing=\"0\">\n";
3488         my $alternate = 1;
3489         if ($commit_search) {
3490                 $/ = "\0";
3491                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3492                 while (my $commit_text = <$fd>) {
3493                         if (!grep m/$searchtext/i, $commit_text) {
3494                                 next;
3495                         }
3496                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3497                                 next;
3498                         }
3499                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3500                                 next;
3501                         }
3502                         my @commit_lines = split "\n", $commit_text;
3503                         my %co = parse_commit(undef, \@commit_lines);
3504                         if (!%co) {
3505                                 next;
3506                         }
3507                         if ($alternate) {
3508                                 print "<tr class=\"dark\">\n";
3509                         } else {
3510                                 print "<tr class=\"light\">\n";
3511                         }
3512                         $alternate ^= 1;
3513                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3514                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3515                               "<td>" .
3516                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3517                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3518                         my $comment = $co{'comment'};
3519                         foreach my $line (@$comment) {
3520                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3521                                         my $lead = esc_html($1) || "";
3522                                         $lead = chop_str($lead, 30, 10);
3523                                         my $match = esc_html($2) || "";
3524                                         my $trail = esc_html($3) || "";
3525                                         $trail = chop_str($trail, 30, 10);
3526                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3527                                         print chop_str($text, 80, 5) . "<br/>\n";
3528                                 }
3529                         }
3530                         print "</td>\n" .
3531                               "<td class=\"link\">" .
3532                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3533                               " | " .
3534                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3535                         print "</td>\n" .
3536                               "</tr>\n";
3537                 }
3538                 close $fd;
3539         }
3540
3541         if ($pickaxe_search) {
3542                 $/ = "\n";
3543                 my $git_command = git_cmd_str();
3544                 open my $fd, "-|", "$git_command rev-list $hash | " .
3545                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3546                 undef %co;
3547                 my @files;
3548                 while (my $line = <$fd>) {
3549                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3550                                 my %set;
3551                                 $set{'file'} = $6;
3552                                 $set{'from_id'} = $3;
3553                                 $set{'to_id'} = $4;
3554                                 $set{'id'} = $set{'to_id'};
3555                                 if ($set{'id'} =~ m/0{40}/) {
3556                                         $set{'id'} = $set{'from_id'};
3557                                 }
3558                                 if ($set{'id'} =~ m/0{40}/) {
3559                                         next;
3560                                 }
3561                                 push @files, \%set;
3562                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3563                                 if (%co) {
3564                                         if ($alternate) {
3565                                                 print "<tr class=\"dark\">\n";
3566                                         } else {
3567                                                 print "<tr class=\"light\">\n";
3568                                         }
3569                                         $alternate ^= 1;
3570                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3571                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3572                                               "<td>" .
3573                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3574                                                       -class => "list subject"},
3575                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3576                                         while (my $setref = shift @files) {
3577                                                 my %set = %$setref;
3578                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3579                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3580                                                               -class => "list"},
3581                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3582                                                       "<br/>\n";
3583                                         }
3584                                         print "</td>\n" .
3585                                               "<td class=\"link\">" .
3586                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3587                                               " | " .
3588                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3589                                         print "</td>\n" .
3590                                               "</tr>\n";
3591                                 }
3592                                 %co = parse_commit($1);
3593                         }
3594                 }
3595                 close $fd;
3596         }
3597         print "</table>\n";
3598         git_footer_html();
3599 }
3600
3601 sub git_shortlog {
3602         my $head = git_get_head_hash($project);
3603         if (!defined $hash) {
3604                 $hash = $head;
3605         }
3606         if (!defined $page) {
3607                 $page = 0;
3608         }
3609         my $refs = git_get_references();
3610
3611         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3612         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3613                 or die_error(undef, "Open git-rev-list failed");
3614         my @revlist = map { chomp; $_ } <$fd>;
3615         close $fd;
3616
3617         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3618         my $next_link = '';
3619         if ($#revlist >= (100 * ($page+1)-1)) {
3620                 $next_link =
3621                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3622                                  -title => "Alt-n"}, "next");
3623         }
3624
3625
3626         git_header_html();
3627         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3628         git_print_header_div('summary', $project);
3629
3630         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3631
3632         git_footer_html();
3633 }
3634
3635 ## ......................................................................
3636 ## feeds (RSS, OPML)
3637
3638 sub git_rss {
3639         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3640         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3641                 or die_error(undef, "Open git-rev-list failed");
3642         my @revlist = map { chomp; $_ } <$fd>;
3643         close $fd or die_error(undef, "Reading git-rev-list failed");
3644         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3645         print <<XML;
3646 <?xml version="1.0" encoding="utf-8"?>
3647 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3648 <channel>
3649 <title>$project $my_uri $my_url</title>
3650 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3651 <description>$project log</description>
3652 <language>en</language>
3653 XML
3654
3655         for (my $i = 0; $i <= $#revlist; $i++) {
3656                 my $commit = $revlist[$i];
3657                 my %co = parse_commit($commit);
3658                 # we read 150, we always show 30 and the ones more recent than 48 hours
3659                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3660                         last;
3661                 }
3662                 my %cd = parse_date($co{'committer_epoch'});
3663                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3664                         $co{'parent'}, $co{'id'}
3665                         or next;
3666                 my @difftree = map { chomp; $_ } <$fd>;
3667                 close $fd
3668                         or next;
3669                 print "<item>\n" .
3670                       "<title>" .
3671                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3672                       "</title>\n" .
3673                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3674                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3675                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3676                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3677                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3678                       "<content:encoded>" .
3679                       "<![CDATA[\n";
3680                 my $comment = $co{'comment'};
3681                 foreach my $line (@$comment) {
3682                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
3683                         print "$line<br/>\n";
3684                 }
3685                 print "<br/>\n";
3686                 foreach my $line (@difftree) {
3687                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3688                                 next;
3689                         }
3690                         my $file = esc_html(unquote($7));
3691                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
3692                         print "$file<br/>\n";
3693                 }
3694                 print "]]>\n" .
3695                       "</content:encoded>\n" .
3696                       "</item>\n";
3697         }
3698         print "</channel></rss>";
3699 }
3700
3701 sub git_opml {
3702         my @list = git_get_projects_list();
3703
3704         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3705         print <<XML;
3706 <?xml version="1.0" encoding="utf-8"?>
3707 <opml version="1.0">
3708 <head>
3709   <title>$site_name Git OPML Export</title>
3710 </head>
3711 <body>
3712 <outline text="git RSS feeds">
3713 XML
3714
3715         foreach my $pr (@list) {
3716                 my %proj = %$pr;
3717                 my $head = git_get_head_hash($proj{'path'});
3718                 if (!defined $head) {
3719                         next;
3720                 }
3721                 $git_dir = "$projectroot/$proj{'path'}";
3722                 my %co = parse_commit($head);
3723                 if (!%co) {
3724                         next;
3725                 }
3726
3727                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3728                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3729                 my $html = "$my_url?p=$proj{'path'};a=summary";
3730                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3731         }
3732         print <<XML;
3733 </outline>
3734 </body>
3735 </opml>
3736 XML
3737 }