gitweb/gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40 # name of your site or organization to appear in page titles
  41 # replace this with something more descriptive for clearer bookmarks
  42 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44 # filename of html text to include at top of each page
  45 our $site_header = "++GITWEB_SITE_HEADER++";
  46 # html text to include at home page
  47 our $home_text = "++GITWEB_HOMETEXT++";
  48 # filename of html text to include at bottom of each page
  49 our $site_footer = "++GITWEB_SITE_FOOTER++";
  50
  51 # URI of stylesheets
  52 our @stylesheets = ("++GITWEB_CSS++");
  53 our $stylesheet;
  54 # default is not to define style sheet, but it can be overwritten later
  55 undef $stylesheet;
  56
  57 # URI of GIT logo
  58 our $logo = "++GITWEB_LOGO++";
  59 # URI of GIT favicon, assumed to be image/png type
  60 our $favicon = "++GITWEB_FAVICON++";
  61
  62 our $githelp_url = "http://git.or.cz/";
  63 our $githelp_label = "git homepage";
  64
  65 # source of projects list
  66 our $projects_list = "++GITWEB_LIST++";
  67
  68 # show repository only if this file exists
  69 # (only effective if this variable evaluates to true)
  70 our $export_ok = "++GITWEB_EXPORT_OK++";
  71
  72 # only allow viewing of repositories also shown on the overview page
  73 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  74
  75 # list of git base URLs used for URL to where fetch project from,
  76 # i.e. full URL is "$git_base_url/$project"
  77 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  78
  79 # default blob_plain mimetype and default charset for text/plain blob
  80 our $default_blob_plain_mimetype = 'text/plain';
  81 our $default_text_plain_charset  = undef;
  82
  83 # file to use for guessing MIME types before trying /etc/mime.types
  84 # (relative to the current git repository)
  85 our $mimetypes_file = undef;
  86
  87 # You define site-wide feature defaults here; override them with
  88 # $GITWEB_CONFIG as necessary.
  89 our %feature = (
  90         # feature => {
  91         #       'sub' => feature-sub (subroutine),
  92         #       'override' => allow-override (boolean),
  93         #       'default' => [ default options...] (array reference)}
  94         #
  95         # if feature is overridable (it means that allow-override has true value,
  96         # then feature-sub will be called with default options as parameters;
  97         # return value of feature-sub indicates if to enable specified feature
  98         #
  99         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 100
 101         'blame' => {
 102                 'sub' => \&feature_blame,
 103                 'override' => 0,
 104                 'default' => [0]},
 105
 106         'snapshot' => {
 107                 'sub' => \&feature_snapshot,
 108                 'override' => 0,
 109                 #         => [content-encoding, suffix, program]
 110                 'default' => ['x-gzip', 'gz', 'gzip']},
 111
 112         'pickaxe' => {
 113                 'sub' => \&feature_pickaxe,
 114                 'override' => 0,
 115                 'default' => [1]},
 116 );
 117
 118 sub gitweb_check_feature {
 119         my ($name) = @_;
 120         return unless exists $feature{$name};
 121         my ($sub, $override, @defaults) = (
 122                 $feature{$name}{'sub'},
 123                 $feature{$name}{'override'},
 124                 @{$feature{$name}{'default'}});
 125         if (!$override) { return @defaults; }
 126         return $sub->(@defaults);
 127 }
 128
 129 # To enable system wide have in $GITWEB_CONFIG
 130 # $feature{'blame'}{'default'} = [1];
 131 # To have project specific config enable override in $GITWEB_CONFIG
 132 # $feature{'blame'}{'override'} = 1;
 133 # and in project config gitweb.blame = 0|1;
 134
 135 sub feature_blame {
 136         my ($val) = git_get_project_config('blame', '--bool');
 137
 138         if ($val eq 'true') {
 139                 return 1;
 140         } elsif ($val eq 'false') {
 141                 return 0;
 142         }
 143
 144         return $_[0];
 145 }
 146
 147 # To disable system wide have in $GITWEB_CONFIG
 148 # $feature{'snapshot'}{'default'} = [undef];
 149 # To have project specific config enable override in $GITWEB_CONFIG
 150 # $feature{'blame'}{'override'} = 1;
 151 # and in project config  gitweb.snapshot = none|gzip|bzip2
 152
 153 sub feature_snapshot {
 154         my ($ctype, $suffix, $command) = @_;
 155
 156         my ($val) = git_get_project_config('snapshot');
 157
 158         if ($val eq 'gzip') {
 159                 return ('x-gzip', 'gz', 'gzip');
 160         } elsif ($val eq 'bzip2') {
 161                 return ('x-bzip2', 'bz2', 'bzip2');
 162         } elsif ($val eq 'none') {
 163                 return ();
 164         }
 165
 166         return ($ctype, $suffix, $command);
 167 }
 168
 169 sub gitweb_have_snapshot {
 170         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 171         my $have_snapshot = (defined $ctype && defined $suffix);
 172
 173         return $have_snapshot;
 174 }
 175
 176 # To enable system wide have in $GITWEB_CONFIG
 177 # $feature{'pickaxe'}{'default'} = [1];
 178 # To have project specific config enable override in $GITWEB_CONFIG
 179 # $feature{'pickaxe'}{'override'} = 1;
 180 # and in project config gitweb.pickaxe = 0|1;
 181
 182 sub feature_pickaxe {
 183         my ($val) = git_get_project_config('pickaxe', '--bool');
 184
 185         if ($val eq 'true') {
 186                 return (1);
 187         } elsif ($val eq 'false') {
 188                 return (0);
 189         }
 190
 191         return ($_[0]);
 192 }
 193
 194 # checking HEAD file with -e is fragile if the repository was
 195 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 196 # and then pruned.
 197 sub check_head_link {
 198         my ($dir) = @_;
 199         my $headfile = "$dir/HEAD";
 200         return ((-e $headfile) ||
 201                 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 202 }
 203
 204 sub check_export_ok {
 205         my ($dir) = @_;
 206         return (check_head_link($dir) &&
 207                 (!$export_ok || -e "$dir/$export_ok"));
 208 }
 209
 210 # rename detection options for git-diff and git-diff-tree
 211 # - default is '-M', with the cost proportional to
 212 #   (number of removed files) * (number of new files).
 213 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 214 #   (number of changed files + number of removed files) * (number of new files)
 215 # - even more costly is '-C', '--find-copies-harder' with cost
 216 #   (number of files in the original tree) * (number of new files)
 217 # - one might want to include '-B' option, e.g. '-B', '-M'
 218 our @diff_opts = ('-M'); # taken from git_commit
 219
 220 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 221 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 222
 223 # version of the core git binary
 224 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 225
 226 $projects_list ||= $projectroot;
 227
 228 # ======================================================================
 229 # input validation and dispatch
 230 our $action = $cgi->param('a');
 231 if (defined $action) {
 232         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 233                 die_error(undef, "Invalid action parameter");
 234         }
 235 }
 236
 237 # parameters which are pathnames
 238 our $project = $cgi->param('p');
 239 if (defined $project) {
 240         if (!validate_pathname($project) ||
 241             !(-d "$projectroot/$project") ||
 242             !check_head_link("$projectroot/$project") ||
 243             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 244             ($strict_export && !project_in_list($project))) {
 245                 undef $project;
 246                 die_error(undef, "No such project");
 247         }
 248 }
 249
 250 our $file_name = $cgi->param('f');
 251 if (defined $file_name) {
 252         if (!validate_pathname($file_name)) {
 253                 die_error(undef, "Invalid file parameter");
 254         }
 255 }
 256
 257 our $file_parent = $cgi->param('fp');
 258 if (defined $file_parent) {
 259         if (!validate_pathname($file_parent)) {
 260                 die_error(undef, "Invalid file parent parameter");
 261         }
 262 }
 263
 264 # parameters which are refnames
 265 our $hash = $cgi->param('h');
 266 if (defined $hash) {
 267         if (!validate_refname($hash)) {
 268                 die_error(undef, "Invalid hash parameter");
 269         }
 270 }
 271
 272 our $hash_parent = $cgi->param('hp');
 273 if (defined $hash_parent) {
 274         if (!validate_refname($hash_parent)) {
 275                 die_error(undef, "Invalid hash parent parameter");
 276         }
 277 }
 278
 279 our $hash_base = $cgi->param('hb');
 280 if (defined $hash_base) {
 281         if (!validate_refname($hash_base)) {
 282                 die_error(undef, "Invalid hash base parameter");
 283         }
 284 }
 285
 286 our $hash_parent_base = $cgi->param('hpb');
 287 if (defined $hash_parent_base) {
 288         if (!validate_refname($hash_parent_base)) {
 289                 die_error(undef, "Invalid hash parent base parameter");
 290         }
 291 }
 292
 293 # other parameters
 294 our $page = $cgi->param('pg');
 295 if (defined $page) {
 296         if ($page =~ m/[^0-9]/) {
 297                 die_error(undef, "Invalid page parameter");
 298         }
 299 }
 300
 301 our $searchtext = $cgi->param('s');
 302 if (defined $searchtext) {
 303         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 304                 die_error(undef, "Invalid search parameter");
 305         }
 306         $searchtext = quotemeta $searchtext;
 307 }
 308
 309 # now read PATH_INFO and use it as alternative to parameters
 310 sub evaluate_path_info {
 311         return if defined $project;
 312         my $path_info = $ENV{"PATH_INFO"};
 313         return if !$path_info;
 314         $path_info =~ s,^/+,,;
 315         return if !$path_info;
 316         # find which part of PATH_INFO is project
 317         $project = $path_info;
 318         $project =~ s,/+$,,;
 319         while ($project && !check_head_link("$projectroot/$project")) {
 320                 $project =~ s,/*[^/]*$,,;
 321         }
 322         # validate project
 323         $project = validate_pathname($project);
 324         if (!$project ||
 325             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 326             ($strict_export && !project_in_list($project))) {
 327                 undef $project;
 328                 return;
 329         }
 330         # do not change any parameters if an action is given using the query string
 331         return if $action;
 332         $path_info =~ s,^$project/*,,;
 333         my ($refname, $pathname) = split(/:/, $path_info, 2);
 334         if (defined $pathname) {
 335                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 336                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 337                 $pathname =~ s,^/+,,;
 338                 if (!$pathname || substr($pathname, -1) eq "/") {
 339                         $action  ||= "tree";
 340                         $pathname =~ s,/$,,;
 341                 } else {
 342                         $action  ||= "blob_plain";
 343                 }
 344                 $hash_base ||= validate_refname($refname);
 345                 $file_name ||= validate_pathname($pathname);
 346         } elsif (defined $refname) {
 347                 # we got "project.git/branch"
 348                 $action ||= "shortlog";
 349                 $hash   ||= validate_refname($refname);
 350         }
 351 }
 352 evaluate_path_info();
 353
 354 # path to the current git repository
 355 our $git_dir;
 356 $git_dir = "$projectroot/$project" if $project;
 357
 358 # dispatch
 359 my %actions = (
 360         "blame" => \&git_blame2,
 361         "blobdiff" => \&git_blobdiff,
 362         "blobdiff_plain" => \&git_blobdiff_plain,
 363         "blob" => \&git_blob,
 364         "blob_plain" => \&git_blob_plain,
 365         "commitdiff" => \&git_commitdiff,
 366         "commitdiff_plain" => \&git_commitdiff_plain,
 367         "commit" => \&git_commit,
 368         "heads" => \&git_heads,
 369         "history" => \&git_history,
 370         "log" => \&git_log,
 371         "rss" => \&git_rss,
 372         "search" => \&git_search,
 373         "shortlog" => \&git_shortlog,
 374         "summary" => \&git_summary,
 375         "tag" => \&git_tag,
 376         "tags" => \&git_tags,
 377         "tree" => \&git_tree,
 378         "snapshot" => \&git_snapshot,
 379         # those below don't need $project
 380         "opml" => \&git_opml,
 381         "project_list" => \&git_project_list,
 382         "project_index" => \&git_project_index,
 383 );
 384
 385 if (defined $project) {
 386         $action ||= 'summary';
 387 } else {
 388         $action ||= 'project_list';
 389 }
 390 if (!defined($actions{$action})) {
 391         die_error(undef, "Unknown action");
 392 }
 393 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 394     !$project) {
 395         die_error(undef, "Project needed");
 396 }
 397 $actions{$action}->();
 398 exit;
 399
 400 ## ======================================================================
 401 ## action links
 402
 403 sub href(%) {
 404         my %params = @_;
 405
 406         my @mapping = (
 407                 project => "p",
 408                 action => "a",
 409                 file_name => "f",
 410                 file_parent => "fp",
 411                 hash => "h",
 412                 hash_parent => "hp",
 413                 hash_base => "hb",
 414                 hash_parent_base => "hpb",
 415                 page => "pg",
 416                 order => "o",
 417                 searchtext => "s",
 418         );
 419         my %mapping = @mapping;
 420
 421         $params{'project'} = $project unless exists $params{'project'};
 422
 423         my @result = ();
 424         for (my $i = 0; $i < @mapping; $i += 2) {
 425                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 426                 if (defined $params{$name}) {
 427                         push @result, $symbol . "=" . esc_param($params{$name});
 428                 }
 429         }
 430         return "$my_uri?" . join(';', @result);
 431 }
 432
 433
 434 ## ======================================================================
 435 ## validation, quoting/unquoting and escaping
 436
 437 sub validate_pathname {
 438         my $input = shift || return undef;
 439
 440         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 441         # at the beginning, at the end, and between slashes.
 442         # also this catches doubled slashes
 443         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 444                 return undef;
 445         }
 446         # no null characters
 447         if ($input =~ m!\0!) {
 448                 return undef;
 449         }
 450         return $input;
 451 }
 452
 453 sub validate_refname {
 454         my $input = shift || return undef;
 455
 456         # textual hashes are O.K.
 457         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 458                 return $input;
 459         }
 460         # it must be correct pathname
 461         $input = validate_pathname($input)
 462                 or return undef;
 463         # restrictions on ref name according to git-check-ref-format
 464         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 465                 return undef;
 466         }
 467         return $input;
 468 }
 469
 470 # quote unsafe chars, but keep the slash, even when it's not
 471 # correct, but quoted slashes look too horrible in bookmarks
 472 sub esc_param {
 473         my $str = shift;
 474         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 475         $str =~ s/\+/%2B/g;
 476         $str =~ s/ /\+/g;
 477         return $str;
 478 }
 479
 480 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 481 sub esc_url {
 482         my $str = shift;
 483         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 484         $str =~ s/\+/%2B/g;
 485         $str =~ s/ /\+/g;
 486         return $str;
 487 }
 488
 489 # replace invalid utf8 character with SUBSTITUTION sequence
 490 sub esc_html {
 491         my $str = shift;
 492         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 493         $str = escapeHTML($str);
 494         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 495         $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 496         return $str;
 497 }
 498
 499 # git may return quoted and escaped filenames
 500 sub unquote {
 501         my $str = shift;
 502         if ($str =~ m/^"(.*)"$/) {
 503                 $str = $1;
 504                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 505         }
 506         return $str;
 507 }
 508
 509 # escape tabs (convert tabs to spaces)
 510 sub untabify {
 511         my $line = shift;
 512
 513         while ((my $pos = index($line, "\t")) != -1) {
 514                 if (my $count = (8 - ($pos % 8))) {
 515                         my $spaces = ' ' x $count;
 516                         $line =~ s/\t/$spaces/;
 517                 }
 518         }
 519
 520         return $line;
 521 }
 522
 523 sub project_in_list {
 524         my $project = shift;
 525         my @list = git_get_projects_list();
 526         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 527 }
 528
 529 ## ----------------------------------------------------------------------
 530 ## HTML aware string manipulation
 531
 532 sub chop_str {
 533         my $str = shift;
 534         my $len = shift;
 535         my $add_len = shift || 10;
 536
 537         # allow only $len chars, but don't cut a word if it would fit in $add_len
 538         # if it doesn't fit, cut it if it's still longer than the dots we would add
 539         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 540         my $body = $1;
 541         my $tail = $2;
 542         if (length($tail) > 4) {
 543                 $tail = " ...";
 544                 $body =~ s/&[^;]*$//; # remove chopped character entities
 545         }
 546         return "$body$tail";
 547 }
 548
 549 ## ----------------------------------------------------------------------
 550 ## functions returning short strings
 551
 552 # CSS class for given age value (in seconds)
 553 sub age_class {
 554         my $age = shift;
 555
 556         if ($age < 60*60*2) {
 557                 return "age0";
 558         } elsif ($age < 60*60*24*2) {
 559                 return "age1";
 560         } else {
 561                 return "age2";
 562         }
 563 }
 564
 565 # convert age in seconds to "nn units ago" string
 566 sub age_string {
 567         my $age = shift;
 568         my $age_str;
 569
 570         if ($age > 60*60*24*365*2) {
 571                 $age_str = (int $age/60/60/24/365);
 572                 $age_str .= " years ago";
 573         } elsif ($age > 60*60*24*(365/12)*2) {
 574                 $age_str = int $age/60/60/24/(365/12);
 575                 $age_str .= " months ago";
 576         } elsif ($age > 60*60*24*7*2) {
 577                 $age_str = int $age/60/60/24/7;
 578                 $age_str .= " weeks ago";
 579         } elsif ($age > 60*60*24*2) {
 580                 $age_str = int $age/60/60/24;
 581                 $age_str .= " days ago";
 582         } elsif ($age > 60*60*2) {
 583                 $age_str = int $age/60/60;
 584                 $age_str .= " hours ago";
 585         } elsif ($age > 60*2) {
 586                 $age_str = int $age/60;
 587                 $age_str .= " min ago";
 588         } elsif ($age > 2) {
 589                 $age_str = int $age;
 590                 $age_str .= " sec ago";
 591         } else {
 592                 $age_str .= " right now";
 593         }
 594         return $age_str;
 595 }
 596
 597 # convert file mode in octal to symbolic file mode string
 598 sub mode_str {
 599         my $mode = oct shift;
 600
 601         if (S_ISDIR($mode & S_IFMT)) {
 602                 return 'drwxr-xr-x';
 603         } elsif (S_ISLNK($mode)) {
 604                 return 'lrwxrwxrwx';
 605         } elsif (S_ISREG($mode)) {
 606                 # git cares only about the executable bit
 607                 if ($mode & S_IXUSR) {
 608                         return '-rwxr-xr-x';
 609                 } else {
 610                         return '-rw-r--r--';
 611                 };
 612         } else {
 613                 return '----------';
 614         }
 615 }
 616
 617 # convert file mode in octal to file type string
 618 sub file_type {
 619         my $mode = shift;
 620
 621         if ($mode !~ m/^[0-7]+$/) {
 622                 return $mode;
 623         } else {
 624                 $mode = oct $mode;
 625         }
 626
 627         if (S_ISDIR($mode & S_IFMT)) {
 628                 return "directory";
 629         } elsif (S_ISLNK($mode)) {
 630                 return "symlink";
 631         } elsif (S_ISREG($mode)) {
 632                 return "file";
 633         } else {
 634                 return "unknown";
 635         }
 636 }
 637
 638 ## ----------------------------------------------------------------------
 639 ## functions returning short HTML fragments, or transforming HTML fragments
 640 ## which don't beling to other sections
 641
 642 # format line of commit message or tag comment
 643 sub format_log_line_html {
 644         my $line = shift;
 645
 646         $line = esc_html($line);
 647         $line =~ s/ /&nbsp;/g;
 648         if ($line =~ m/([0-9a-fA-F]{40})/) {
 649                 my $hash_text = $1;
 650                 if (git_get_type($hash_text) eq "commit") {
 651                         my $link =
 652                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 653                                         -class => "text"}, $hash_text);
 654                         $line =~ s/$hash_text/$link/;
 655                 }
 656         }
 657         return $line;
 658 }
 659
 660 # format marker of refs pointing to given object
 661 sub format_ref_marker {
 662         my ($refs, $id) = @_;
 663         my $markers = '';
 664
 665         if (defined $refs->{$id}) {
 666                 foreach my $ref (@{$refs->{$id}}) {
 667                         my ($type, $name) = qw();
 668                         # e.g. tags/v2.6.11 or heads/next
 669                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 670                                 $type = $1;
 671                                 $name = $2;
 672                         } else {
 673                                 $type = "ref";
 674                                 $name = $ref;
 675                         }
 676
 677                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 678                 }
 679         }
 680
 681         if ($markers) {
 682                 return ' <span class="refs">'. $markers . '</span>';
 683         } else {
 684                 return "";
 685         }
 686 }
 687
 688 # format, perhaps shortened and with markers, title line
 689 sub format_subject_html {
 690         my ($long, $short, $href, $extra) = @_;
 691         $extra = '' unless defined($extra);
 692
 693         if (length($short) < length($long)) {
 694                 return $cgi->a({-href => $href, -class => "list subject",
 695                                 -title => decode("utf8", $long, Encode::FB_DEFAULT)},
 696                        esc_html($short) . $extra);
 697         } else {
 698                 return $cgi->a({-href => $href, -class => "list subject"},
 699                        esc_html($long)  . $extra);
 700         }
 701 }
 702
 703 sub format_diff_line {
 704         my $line = shift;
 705         my $char = substr($line, 0, 1);
 706         my $diff_class = "";
 707
 708         chomp $line;
 709
 710         if ($char eq '+') {
 711                 $diff_class = " add";
 712         } elsif ($char eq "-") {
 713                 $diff_class = " rem";
 714         } elsif ($char eq "@") {
 715                 $diff_class = " chunk_header";
 716         } elsif ($char eq "\\") {
 717                 $diff_class = " incomplete";
 718         }
 719         $line = untabify($line);
 720         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 721 }
 722
 723 ## ----------------------------------------------------------------------
 724 ## git utility subroutines, invoking git commands
 725
 726 # returns path to the core git executable and the --git-dir parameter as list
 727 sub git_cmd {
 728         return $GIT, '--git-dir='.$git_dir;
 729 }
 730
 731 # returns path to the core git executable and the --git-dir parameter as string
 732 sub git_cmd_str {
 733         return join(' ', git_cmd());
 734 }
 735
 736 # get HEAD ref of given project as hash
 737 sub git_get_head_hash {
 738         my $project = shift;
 739         my $o_git_dir = $git_dir;
 740         my $retval = undef;
 741         $git_dir = "$projectroot/$project";
 742         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 743                 my $head = <$fd>;
 744                 close $fd;
 745                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 746                         $retval = $1;
 747                 }
 748         }
 749         if (defined $o_git_dir) {
 750                 $git_dir = $o_git_dir;
 751         }
 752         return $retval;
 753 }
 754
 755 # get type of given object
 756 sub git_get_type {
 757         my $hash = shift;
 758
 759         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 760         my $type = <$fd>;
 761         close $fd or return;
 762         chomp $type;
 763         return $type;
 764 }
 765
 766 sub git_get_project_config {
 767         my ($key, $type) = @_;
 768
 769         return unless ($key);
 770         $key =~ s/^gitweb\.//;
 771         return if ($key =~ m/\W/);
 772
 773         my @x = (git_cmd(), 'repo-config');
 774         if (defined $type) { push @x, $type; }
 775         push @x, "--get";
 776         push @x, "gitweb.$key";
 777         my $val = qx(@x);
 778         chomp $val;
 779         return ($val);
 780 }
 781
 782 # get hash of given path at given ref
 783 sub git_get_hash_by_path {
 784         my $base = shift;
 785         my $path = shift || return undef;
 786         my $type = shift;
 787
 788         $path =~ s,/+$,,;
 789
 790         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 791                 or die_error(undef, "Open git-ls-tree failed");
 792         my $line = <$fd>;
 793         close $fd or return undef;
 794
 795         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 796         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 797         if (defined $type && $type ne $2) {
 798                 # type doesn't match
 799                 return undef;
 800         }
 801         return $3;
 802 }
 803
 804 ## ......................................................................
 805 ## git utility functions, directly accessing git repository
 806
 807 sub git_get_project_description {
 808         my $path = shift;
 809
 810         open my $fd, "$projectroot/$path/description" or return undef;
 811         my $descr = <$fd>;
 812         close $fd;
 813         chomp $descr;
 814         return $descr;
 815 }
 816
 817 sub git_get_project_url_list {
 818         my $path = shift;
 819
 820         open my $fd, "$projectroot/$path/cloneurl" or return;
 821         my @git_project_url_list = map { chomp; $_ } <$fd>;
 822         close $fd;
 823
 824         return wantarray ? @git_project_url_list : \@git_project_url_list;
 825 }
 826
 827 sub git_get_projects_list {
 828         my @list;
 829
 830         if (-d $projects_list) {
 831                 # search in directory
 832                 my $dir = $projects_list;
 833                 my $pfxlen = length("$dir");
 834
 835                 File::Find::find({
 836                         follow_fast => 1, # follow symbolic links
 837                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 838                         wanted => sub {
 839                                 # skip project-list toplevel, if we get it.
 840                                 return if (m!^[/.]$!);
 841                                 # only directories can be git repositories
 842                                 return unless (-d $_);
 843
 844                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 845                                 # we check related file in $projectroot
 846                                 if (check_export_ok("$projectroot/$subdir")) {
 847                                         push @list, { path => $subdir };
 848                                         $File::Find::prune = 1;
 849                                 }
 850                         },
 851                 }, "$dir");
 852
 853         } elsif (-f $projects_list) {
 854                 # read from file(url-encoded):
 855                 # 'git%2Fgit.git Linus+Torvalds'
 856                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 857                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 858                 open my ($fd), $projects_list or return;
 859                 while (my $line = <$fd>) {
 860                         chomp $line;
 861                         my ($path, $owner) = split ' ', $line;
 862                         $path = unescape($path);
 863                         $owner = unescape($owner);
 864                         if (!defined $path) {
 865                                 next;
 866                         }
 867                         if (check_export_ok("$projectroot/$path")) {
 868                                 my $pr = {
 869                                         path => $path,
 870                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 871                                 };
 872                                 push @list, $pr
 873                         }
 874                 }
 875                 close $fd;
 876         }
 877         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 878         return @list;
 879 }
 880
 881 sub git_get_project_owner {
 882         my $project = shift;
 883         my $owner;
 884
 885         return undef unless $project;
 886
 887         # read from file (url-encoded):
 888         # 'git%2Fgit.git Linus+Torvalds'
 889         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 890         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 891         if (-f $projects_list) {
 892                 open (my $fd , $projects_list);
 893                 while (my $line = <$fd>) {
 894                         chomp $line;
 895                         my ($pr, $ow) = split ' ', $line;
 896                         $pr = unescape($pr);
 897                         $ow = unescape($ow);
 898                         if ($pr eq $project) {
 899                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 900                                 last;
 901                         }
 902                 }
 903                 close $fd;
 904         }
 905         if (!defined $owner) {
 906                 $owner = get_file_owner("$projectroot/$project");
 907         }
 908
 909         return $owner;
 910 }
 911
 912 sub git_get_references {
 913         my $type = shift || "";
 914         my %refs;
 915         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 916         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 917         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 918                 or return;
 919
 920         while (my $line = <$fd>) {
 921                 chomp $line;
 922                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 923                         if (defined $refs{$1}) {
 924                                 push @{$refs{$1}}, $2;
 925                         } else {
 926                                 $refs{$1} = [ $2 ];
 927                         }
 928                 }
 929         }
 930         close $fd or return;
 931         return \%refs;
 932 }
 933
 934 sub git_get_rev_name_tags {
 935         my $hash = shift || return undef;
 936
 937         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 938                 or return;
 939         my $name_rev = <$fd>;
 940         close $fd;
 941
 942         if ($name_rev =~ m|^$hash tags/(.*)$|) {
 943                 return $1;
 944         } else {
 945                 # catches also '$hash undefined' output
 946                 return undef;
 947         }
 948 }
 949
 950 ## ----------------------------------------------------------------------
 951 ## parse to hash functions
 952
 953 sub parse_date {
 954         my $epoch = shift;
 955         my $tz = shift || "-0000";
 956
 957         my %date;
 958         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 959         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 960         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 961         $date{'hour'} = $hour;
 962         $date{'minute'} = $min;
 963         $date{'mday'} = $mday;
 964         $date{'day'} = $days[$wday];
 965         $date{'month'} = $months[$mon];
 966         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 967                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 968         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 969                              $mday, $months[$mon], $hour ,$min;
 970
 971         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 972         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 973         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 974         $date{'hour_local'} = $hour;
 975         $date{'minute_local'} = $min;
 976         $date{'tz_local'} = $tz;
 977         $date{'iso-tz'} = sprintf ("%04d-%02d-%02d %02d:%02d:%02d %s",
 978                                    1900+$year, $mon+1, $mday,
 979                                    $hour, $min, $sec, $tz);
 980         return %date;
 981 }
 982
 983 sub parse_tag {
 984         my $tag_id = shift;
 985         my %tag;
 986         my @comment;
 987
 988         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 989         $tag{'id'} = $tag_id;
 990         while (my $line = <$fd>) {
 991                 chomp $line;
 992                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 993                         $tag{'object'} = $1;
 994                 } elsif ($line =~ m/^type (.+)$/) {
 995                         $tag{'type'} = $1;
 996                 } elsif ($line =~ m/^tag (.+)$/) {
 997                         $tag{'name'} = $1;
 998                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 999                         $tag{'author'} = $1;
1000                         $tag{'epoch'} = $2;
1001                         $tag{'tz'} = $3;
1002                 } elsif ($line =~ m/--BEGIN/) {
1003                         push @comment, $line;
1004                         last;
1005                 } elsif ($line eq "") {
1006                         last;
1007                 }
1008         }
1009         push @comment, <$fd>;
1010         $tag{'comment'} = \@comment;
1011         close $fd or return;
1012         if (!defined $tag{'name'}) {
1013                 return
1014         };
1015         return %tag
1016 }
1017
1018 sub parse_commit {
1019         my $commit_id = shift;
1020         my $commit_text = shift;
1021
1022         my @commit_lines;
1023         my %co;
1024
1025         if (defined $commit_text) {
1026                 @commit_lines = @$commit_text;
1027         } else {
1028                 $/ = "\0";
1029                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1030                         or return;
1031                 @commit_lines = split '\n', <$fd>;
1032                 close $fd or return;
1033                 $/ = "\n";
1034                 pop @commit_lines;
1035         }
1036         my $header = shift @commit_lines;
1037         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1038                 return;
1039         }
1040         ($co{'id'}, my @parents) = split ' ', $header;
1041         $co{'parents'} = \@parents;
1042         $co{'parent'} = $parents[0];
1043         while (my $line = shift @commit_lines) {
1044                 last if $line eq "\n";
1045                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1046                         $co{'tree'} = $1;
1047                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1048                         $co{'author'} = $1;
1049                         $co{'author_epoch'} = $2;
1050                         $co{'author_tz'} = $3;
1051                         if ($co{'author'} =~ m/^([^<]+) </) {
1052                                 $co{'author_name'} = $1;
1053                         } else {
1054                                 $co{'author_name'} = $co{'author'};
1055                         }
1056                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1057                         $co{'committer'} = $1;
1058                         $co{'committer_epoch'} = $2;
1059                         $co{'committer_tz'} = $3;
1060                         $co{'committer_name'} = $co{'committer'};
1061                         $co{'committer_name'} =~ s/ <.*//;
1062                 }
1063         }
1064         if (!defined $co{'tree'}) {
1065                 return;
1066         };
1067
1068         foreach my $title (@commit_lines) {
1069                 $title =~ s/^    //;
1070                 if ($title ne "") {
1071                         $co{'title'} = chop_str($title, 80, 5);
1072                         # remove leading stuff of merges to make the interesting part visible
1073                         if (length($title) > 50) {
1074                                 $title =~ s/^Automatic //;
1075                                 $title =~ s/^merge (of|with) /Merge ... /i;
1076                                 if (length($title) > 50) {
1077                                         $title =~ s/(http|rsync):\/\///;
1078                                 }
1079                                 if (length($title) > 50) {
1080                                         $title =~ s/(master|www|rsync)\.//;
1081                                 }
1082                                 if (length($title) > 50) {
1083                                         $title =~ s/kernel.org:?//;
1084                                 }
1085                                 if (length($title) > 50) {
1086                                         $title =~ s/\/pub\/scm//;
1087                                 }
1088                         }
1089                         $co{'title_short'} = chop_str($title, 50, 5);
1090                         last;
1091                 }
1092         }
1093         # remove added spaces
1094         foreach my $line (@commit_lines) {
1095                 $line =~ s/^    //;
1096         }
1097         $co{'comment'} = \@commit_lines;
1098
1099         my $age = time - $co{'committer_epoch'};
1100         $co{'age'} = $age;
1101         $co{'age_string'} = age_string($age);
1102         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1103         if ($age > 60*60*24*7*2) {
1104                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1105                 $co{'age_string_age'} = $co{'age_string'};
1106         } else {
1107                 $co{'age_string_date'} = $co{'age_string'};
1108                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1109         }
1110         return %co;
1111 }
1112
1113 # parse ref from ref_file, given by ref_id, with given type
1114 sub parse_ref {
1115         my $ref_file = shift;
1116         my $ref_id = shift;
1117         my $type = shift || git_get_type($ref_id);
1118         my %ref_item;
1119
1120         $ref_item{'type'} = $type;
1121         $ref_item{'id'} = $ref_id;
1122         $ref_item{'epoch'} = 0;
1123         $ref_item{'age'} = "unknown";
1124         if ($type eq "tag") {
1125                 my %tag = parse_tag($ref_id);
1126                 $ref_item{'comment'} = $tag{'comment'};
1127                 if ($tag{'type'} eq "commit") {
1128                         my %co = parse_commit($tag{'object'});
1129                         $ref_item{'epoch'} = $co{'committer_epoch'};
1130                         $ref_item{'age'} = $co{'age_string'};
1131                 } elsif (defined($tag{'epoch'})) {
1132                         my $age = time - $tag{'epoch'};
1133                         $ref_item{'epoch'} = $tag{'epoch'};
1134                         $ref_item{'age'} = age_string($age);
1135                 }
1136                 $ref_item{'reftype'} = $tag{'type'};
1137                 $ref_item{'name'} = $tag{'name'};
1138                 $ref_item{'refid'} = $tag{'object'};
1139         } elsif ($type eq "commit"){
1140                 my %co = parse_commit($ref_id);
1141                 $ref_item{'reftype'} = "commit";
1142                 $ref_item{'name'} = $ref_file;
1143                 $ref_item{'title'} = $co{'title'};
1144                 $ref_item{'refid'} = $ref_id;
1145                 $ref_item{'epoch'} = $co{'committer_epoch'};
1146                 $ref_item{'age'} = $co{'age_string'};
1147         } else {
1148                 $ref_item{'reftype'} = $type;
1149                 $ref_item{'name'} = $ref_file;
1150                 $ref_item{'refid'} = $ref_id;
1151         }
1152
1153         return %ref_item;
1154 }
1155
1156 # parse line of git-diff-tree "raw" output
1157 sub parse_difftree_raw_line {
1158         my $line = shift;
1159         my %res;
1160
1161         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1162         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1163         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1164                 $res{'from_mode'} = $1;
1165                 $res{'to_mode'} = $2;
1166                 $res{'from_id'} = $3;
1167                 $res{'to_id'} = $4;
1168                 $res{'status'} = $5;
1169                 $res{'similarity'} = $6;
1170                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1171                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1172                 } else {
1173                         $res{'file'} = unquote($7);
1174                 }
1175         }
1176         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1177         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1178                 $res{'commit'} = $1;
1179         }
1180
1181         return wantarray ? %res : \%res;
1182 }
1183
1184 # parse line of git-ls-tree output
1185 sub parse_ls_tree_line ($;%) {
1186         my $line = shift;
1187         my %opts = @_;
1188         my %res;
1189
1190         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1191         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1192
1193         $res{'mode'} = $1;
1194         $res{'type'} = $2;
1195         $res{'hash'} = $3;
1196         if ($opts{'-z'}) {
1197                 $res{'name'} = $4;
1198         } else {
1199                 $res{'name'} = unquote($4);
1200         }
1201
1202         return wantarray ? %res : \%res;
1203 }
1204
1205 ## ......................................................................
1206 ## parse to array of hashes functions
1207
1208 sub git_get_refs_list {
1209         my $type = shift || "";
1210         my %refs;
1211         my @reflist;
1212
1213         my @refs;
1214         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1215                 or return;
1216         while (my $line = <$fd>) {
1217                 chomp $line;
1218                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1219                         if (defined $refs{$1}) {
1220                                 push @{$refs{$1}}, $2;
1221                         } else {
1222                                 $refs{$1} = [ $2 ];
1223                         }
1224
1225                         if (! $4) { # unpeeled, direct reference
1226                                 push @refs, { hash => $1, name => $3 }; # without type
1227                         } elsif ($3 eq $refs[-1]{'name'}) {
1228                                 # most likely a tag is followed by its peeled
1229                                 # (deref) one, and when that happens we know the
1230                                 # previous one was of type 'tag'.
1231                                 $refs[-1]{'type'} = "tag";
1232                         }
1233                 }
1234         }
1235         close $fd;
1236
1237         foreach my $ref (@refs) {
1238                 my $ref_file = $ref->{'name'};
1239                 my $ref_id   = $ref->{'hash'};
1240
1241                 my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1242                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1243
1244                 push @reflist, \%ref_item;
1245         }
1246         # sort refs by age
1247         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1248         return (\@reflist, \%refs);
1249 }
1250
1251 ## ----------------------------------------------------------------------
1252 ## filesystem-related functions
1253
1254 sub get_file_owner {
1255         my $path = shift;
1256
1257         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1258         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1259         if (!defined $gcos) {
1260                 return undef;
1261         }
1262         my $owner = $gcos;
1263         $owner =~ s/[,;].*$//;
1264         return decode("utf8", $owner, Encode::FB_DEFAULT);
1265 }
1266
1267 ## ......................................................................
1268 ## mimetype related functions
1269
1270 sub mimetype_guess_file {
1271         my $filename = shift;
1272         my $mimemap = shift;
1273         -r $mimemap or return undef;
1274
1275         my %mimemap;
1276         open(MIME, $mimemap) or return undef;
1277         while (<MIME>) {
1278                 next if m/^#/; # skip comments
1279                 my ($mime, $exts) = split(/\t+/);
1280                 if (defined $exts) {
1281                         my @exts = split(/\s+/, $exts);
1282                         foreach my $ext (@exts) {
1283                                 $mimemap{$ext} = $mime;
1284                         }
1285                 }
1286         }
1287         close(MIME);
1288
1289         $filename =~ /\.([^.]*)$/;
1290         return $mimemap{$1};
1291 }
1292
1293 sub mimetype_guess {
1294         my $filename = shift;
1295         my $mime;
1296         $filename =~ /\./ or return undef;
1297
1298         if ($mimetypes_file) {
1299                 my $file = $mimetypes_file;
1300                 if ($file !~ m!^/!) { # if it is relative path
1301                         # it is relative to project
1302                         $file = "$projectroot/$project/$file";
1303                 }
1304                 $mime = mimetype_guess_file($filename, $file);
1305         }
1306         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1307         return $mime;
1308 }
1309
1310 sub blob_mimetype {
1311         my $fd = shift;
1312         my $filename = shift;
1313
1314         if ($filename) {
1315                 my $mime = mimetype_guess($filename);
1316                 $mime and return $mime;
1317         }
1318
1319         # just in case
1320         return $default_blob_plain_mimetype unless $fd;
1321
1322         if (-T $fd) {
1323                 return 'text/plain' .
1324                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1325         } elsif (! $filename) {
1326                 return 'application/octet-stream';
1327         } elsif ($filename =~ m/\.png$/i) {
1328                 return 'image/png';
1329         } elsif ($filename =~ m/\.gif$/i) {
1330                 return 'image/gif';
1331         } elsif ($filename =~ m/\.jpe?g$/i) {
1332                 return 'image/jpeg';
1333         } else {
1334                 return 'application/octet-stream';
1335         }
1336 }
1337
1338 ## ======================================================================
1339 ## functions printing HTML: header, footer, error page
1340
1341 sub git_header_html {
1342         my $status = shift || "200 OK";
1343         my $expires = shift;
1344
1345         my $title = "$site_name git";
1346         if (defined $project) {
1347                 $title .= " - $project";
1348                 if (defined $action) {
1349                         $title .= "/$action";
1350                         if (defined $file_name) {
1351                                 $title .= " - " . esc_html($file_name);
1352                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1353                                         $title .= "/";
1354                                 }
1355                         }
1356                 }
1357         }
1358         my $content_type;
1359         # require explicit support from the UA if we are to send the page as
1360         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1361         # we have to do this because MSIE sometimes globs '*/*', pretending to
1362         # support xhtml+xml but choking when it gets what it asked for.
1363         if (defined $cgi->http('HTTP_ACCEPT') &&
1364             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1365             $cgi->Accept('application/xhtml+xml') != 0) {
1366                 $content_type = 'application/xhtml+xml';
1367         } else {
1368                 $content_type = 'text/html';
1369         }
1370         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1371                            -status=> $status, -expires => $expires);
1372         print <<EOF;
1373 <?xml version="1.0" encoding="utf-8"?>
1374 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1375 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1376 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1377 <!-- git core binaries version $git_version -->
1378 <head>
1379 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1380 <meta name="generator" content="gitweb/$version git/$git_version"/>
1381 <meta name="robots" content="index, nofollow"/>
1382 <title>$title</title>
1383 EOF
1384 # print out each stylesheet that exist
1385         if (defined $stylesheet) {
1386 #provides backwards capability for those people who define style sheet in a config file
1387                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1388         } else {
1389                 foreach my $stylesheet (@stylesheets) {
1390                         next unless $stylesheet;
1391                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1392                 }
1393         }
1394         if (defined $project) {
1395                 printf('<link rel="alternate" title="%s log" '.
1396                        'href="%s" type="application/rss+xml"/>'."\n",
1397                        esc_param($project), href(action=>"rss"));
1398         } else {
1399                 printf('<link rel="alternate" title="%s projects list" '.
1400                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1401                        $site_name, href(project=>undef, action=>"project_index"));
1402                 printf('<link rel="alternate" title="%s projects logs" '.
1403                        'href="%s" type="text/x-opml"/>'."\n",
1404                        $site_name, href(project=>undef, action=>"opml"));
1405         }
1406         if (defined $favicon) {
1407                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1408         }
1409
1410         print "</head>\n" .
1411               "<body>\n";
1412
1413         if (-f $site_header) {
1414                 open (my $fd, $site_header);
1415                 print <$fd>;
1416                 close $fd;
1417         }
1418
1419         print "<div class=\"page_header\">\n" .
1420               "<a href=\"" . esc_html($githelp_url) .
1421               "\" title=\"" . esc_html($githelp_label) .
1422               "\">" .
1423               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1424               "</a>\n";
1425         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1426         if (defined $project) {
1427                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1428                 if (defined $action) {
1429                         print " / $action";
1430                 }
1431                 print "\n";
1432                 if (!defined $searchtext) {
1433                         $searchtext = "";
1434                 }
1435                 my $search_hash;
1436                 if (defined $hash_base) {
1437                         $search_hash = $hash_base;
1438                 } elsif (defined $hash) {
1439                         $search_hash = $hash;
1440                 } else {
1441                         $search_hash = "HEAD";
1442                 }
1443                 $cgi->param("a", "search");
1444                 $cgi->param("h", $search_hash);
1445                 print $cgi->startform(-method => "get", -action => $my_uri) .
1446                       "<div class=\"search\">\n" .
1447                       $cgi->hidden(-name => "p") . "\n" .
1448                       $cgi->hidden(-name => "a") . "\n" .
1449                       $cgi->hidden(-name => "h") . "\n" .
1450                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1451                       "</div>" .
1452                       $cgi->end_form() . "\n";
1453         }
1454         print "</div>\n";
1455 }
1456
1457 sub git_footer_html {
1458         print "<div class=\"page_footer\">\n";
1459         if (defined $project) {
1460                 my $descr = git_get_project_description($project);
1461                 if (defined $descr) {
1462                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1463                 }
1464                 print $cgi->a({-href => href(action=>"rss"),
1465                               -class => "rss_logo"}, "RSS") . "\n";
1466         } else {
1467                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1468                               -class => "rss_logo"}, "OPML") . " ";
1469                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1470                               -class => "rss_logo"}, "TXT") . "\n";
1471         }
1472         print "</div>\n" ;
1473
1474         if (-f $site_footer) {
1475                 open (my $fd, $site_footer);
1476                 print <$fd>;
1477                 close $fd;
1478         }
1479
1480         print "</body>\n" .
1481               "</html>";
1482 }
1483
1484 sub die_error {
1485         my $status = shift || "403 Forbidden";
1486         my $error = shift || "Malformed query, file missing or permission denied";
1487
1488         git_header_html($status);
1489         print <<EOF;
1490 <div class="page_body">
1491 <br /><br />
1492 $status - $error
1493 <br />
1494 </div>
1495 EOF
1496         git_footer_html();
1497         exit;
1498 }
1499
1500 ## ----------------------------------------------------------------------
1501 ## functions printing or outputting HTML: navigation
1502
1503 sub git_print_page_nav {
1504         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1505         $extra = '' if !defined $extra; # pager or formats
1506
1507         my @navs = qw(summary shortlog log commit commitdiff tree);
1508         if ($suppress) {
1509                 @navs = grep { $_ ne $suppress } @navs;
1510         }
1511
1512         my %arg = map { $_ => {action=>$_} } @navs;
1513         if (defined $head) {
1514                 for (qw(commit commitdiff)) {
1515                         $arg{$_}{hash} = $head;
1516                 }
1517                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1518                         for (qw(shortlog log)) {
1519                                 $arg{$_}{hash} = $head;
1520                         }
1521                 }
1522         }
1523         $arg{tree}{hash} = $treehead if defined $treehead;
1524         $arg{tree}{hash_base} = $treebase if defined $treebase;
1525
1526         print "<div class=\"page_nav\">\n" .
1527                 (join " | ",
1528                  map { $_ eq $current ?
1529                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1530                  } @navs);
1531         print "<br/>\n$extra<br/>\n" .
1532               "</div>\n";
1533 }
1534
1535 sub format_paging_nav {
1536         my ($action, $hash, $head, $page, $nrevs) = @_;
1537         my $paging_nav;
1538
1539
1540         if ($hash ne $head || $page) {
1541                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1542         } else {
1543                 $paging_nav .= "HEAD";
1544         }
1545
1546         if ($page > 0) {
1547                 $paging_nav .= " &sdot; " .
1548                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1549                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1550         } else {
1551                 $paging_nav .= " &sdot; prev";
1552         }
1553
1554         if ($nrevs >= (100 * ($page+1)-1)) {
1555                 $paging_nav .= " &sdot; " .
1556                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1557                                  -accesskey => "n", -title => "Alt-n"}, "next");
1558         } else {
1559                 $paging_nav .= " &sdot; next";
1560         }
1561
1562         return $paging_nav;
1563 }
1564
1565 ## ......................................................................
1566 ## functions printing or outputting HTML: div
1567
1568 sub git_print_header_div {
1569         my ($action, $title, $hash, $hash_base) = @_;
1570         my %args = ();
1571
1572         $args{action} = $action;
1573         $args{hash} = $hash if $hash;
1574         $args{hash_base} = $hash_base if $hash_base;
1575
1576         print "<div class=\"header\">\n" .
1577               $cgi->a({-href => href(%args), -class => "title"},
1578               $title ? $title : $action) .
1579               "\n</div>\n";
1580 }
1581
1582 #sub git_print_authorship (\%) {
1583 sub git_print_authorship {
1584         my $co = shift;
1585
1586         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1587         print "<div class=\"author_date\">" .
1588               esc_html($co->{'author_name'}) .
1589               " [$ad{'rfc2822'}";
1590         if ($ad{'hour_local'} < 6) {
1591                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1592                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1593         } else {
1594                 printf(" (%02d:%02d %s)",
1595                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1596         }
1597         print "]</div>\n";
1598 }
1599
1600 sub git_print_page_path {
1601         my $name = shift;
1602         my $type = shift;
1603         my $hb = shift;
1604
1605         if (!defined $name) {
1606                 print "<div class=\"page_path\">/</div>\n";
1607         } else {
1608                 my @dirname = split '/', $name;
1609                 my $basename = pop @dirname;
1610                 my $fullname = '';
1611
1612                 print "<div class=\"page_path\">";
1613                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1614                               -title => 'tree root'}, "[$project]");
1615                 print " / ";
1616                 foreach my $dir (@dirname) {
1617                         $fullname .= ($fullname ? '/' : '') . $dir;
1618                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1619                                                      hash_base=>$hb),
1620                                       -title => $fullname}, esc_html($dir));
1621                         print " / ";
1622                 }
1623                 if (defined $type && $type eq 'blob') {
1624                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1625                                                      hash_base=>$hb),
1626                                       -title => $name}, esc_html($basename));
1627                 } elsif (defined $type && $type eq 'tree') {
1628                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1629                                                      hash_base=>$hb),
1630                                       -title => $name}, esc_html($basename));
1631                 } else {
1632                         print esc_html($basename);
1633                 }
1634                 print "<br/></div>\n";
1635         }
1636 }
1637
1638 # sub git_print_log (\@;%) {
1639 sub git_print_log ($;%) {
1640         my $log = shift;
1641         my %opts = @_;
1642
1643         if ($opts{'-remove_title'}) {
1644                 # remove title, i.e. first line of log
1645                 shift @$log;
1646         }
1647         # remove leading empty lines
1648         while (defined $log->[0] && $log->[0] eq "") {
1649                 shift @$log;
1650         }
1651
1652         # print log
1653         my $signoff = 0;
1654         my $empty = 0;
1655         foreach my $line (@$log) {
1656                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1657                         $signoff = 1;
1658                         $empty = 0;
1659                         if (! $opts{'-remove_signoff'}) {
1660                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1661                                 next;
1662                         } else {
1663                                 # remove signoff lines
1664                                 next;
1665                         }
1666                 } else {
1667                         $signoff = 0;
1668                 }
1669
1670                 # print only one empty line
1671                 # do not print empty line after signoff
1672                 if ($line eq "") {
1673                         next if ($empty || $signoff);
1674                         $empty = 1;
1675                 } else {
1676                         $empty = 0;
1677                 }
1678
1679                 print format_log_line_html($line) . "<br/>\n";
1680         }
1681
1682         if ($opts{'-final_empty_line'}) {
1683                 # end with single empty line
1684                 print "<br/>\n" unless $empty;
1685         }
1686 }
1687
1688 sub git_print_simplified_log {
1689         my $log = shift;
1690         my $remove_title = shift;
1691
1692         git_print_log($log,
1693                 -final_empty_line=> 1,
1694                 -remove_title => $remove_title);
1695 }
1696
1697 # print tree entry (row of git_tree), but without encompassing <tr> element
1698 sub git_print_tree_entry {
1699         my ($t, $basedir, $hash_base, $have_blame) = @_;
1700
1701         my %base_key = ();
1702         $base_key{hash_base} = $hash_base if defined $hash_base;
1703
1704         # The format of a table row is: mode list link.  Where mode is
1705         # the mode of the entry, list is the name of the entry, an href,
1706         # and link is the action links of the entry.
1707
1708         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1709         if ($t->{'type'} eq "blob") {
1710                 print "<td class=\"list\">" .
1711                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1712                                                file_name=>"$basedir$t->{'name'}", %base_key),
1713                                  -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1714                 print "<td class=\"link\">";
1715                 if ($have_blame) {
1716                         print $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1717                                                      file_name=>"$basedir$t->{'name'}", %base_key)},
1718                                       "blame");
1719                 }
1720                 if (defined $hash_base) {
1721                         if ($have_blame) {
1722                                 print " | ";
1723                         }
1724                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1725                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1726                                       "history");
1727                 }
1728                 print " | " .
1729                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1730                                                file_name=>"$basedir$t->{'name'}")},
1731                                 "raw");
1732                 print "</td>\n";
1733
1734         } elsif ($t->{'type'} eq "tree") {
1735                 print "<td class=\"list\">";
1736                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1737                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1738                               esc_html($t->{'name'}));
1739                 print "</td>\n";
1740                 print "<td class=\"link\">";
1741                 if (defined $hash_base) {
1742                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1743                                                      file_name=>"$basedir$t->{'name'}")},
1744                                       "history");
1745                 }
1746                 print "</td>\n";
1747         }
1748 }
1749
1750 ## ......................................................................
1751 ## functions printing large fragments of HTML
1752
1753 sub git_difftree_body {
1754         my ($difftree, $hash, $parent) = @_;
1755
1756         print "<div class=\"list_head\">\n";
1757         if ($#{$difftree} > 10) {
1758                 print(($#{$difftree} + 1) . " files changed:\n");
1759         }
1760         print "</div>\n";
1761
1762         print "<table class=\"diff_tree\">\n";
1763         my $alternate = 1;
1764         my $patchno = 0;
1765         foreach my $line (@{$difftree}) {
1766                 my %diff = parse_difftree_raw_line($line);
1767
1768                 if ($alternate) {
1769                         print "<tr class=\"dark\">\n";
1770                 } else {
1771                         print "<tr class=\"light\">\n";
1772                 }
1773                 $alternate ^= 1;
1774
1775                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1776                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1777                 if ($diff{'to_mode'} ne ('0' x 6)) {
1778                         $to_mode_oct = oct $diff{'to_mode'};
1779                         if (S_ISREG($to_mode_oct)) { # only for regular file
1780                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1781                         }
1782                         $to_file_type = file_type($diff{'to_mode'});
1783                 }
1784                 if ($diff{'from_mode'} ne ('0' x 6)) {
1785                         $from_mode_oct = oct $diff{'from_mode'};
1786                         if (S_ISREG($to_mode_oct)) { # only for regular file
1787                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1788                         }
1789                         $from_file_type = file_type($diff{'from_mode'});
1790                 }
1791
1792                 if ($diff{'status'} eq "A") { # created
1793                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1794                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1795                         $mode_chng   .= "]</span>";
1796                         print "<td>";
1797                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1798                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1799                                        -class => "list"}, esc_html($diff{'file'}));
1800                         print "</td>\n";
1801                         print "<td>$mode_chng</td>\n";
1802                         print "<td class=\"link\">";
1803                         if ($action eq 'commitdiff') {
1804                                 # link to patch
1805                                 $patchno++;
1806                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1807                         }
1808                         print "</td>\n";
1809
1810                 } elsif ($diff{'status'} eq "D") { # deleted
1811                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1812                         print "<td>";
1813                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1814                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1815                                        -class => "list"}, esc_html($diff{'file'}));
1816                         print "</td>\n";
1817                         print "<td>$mode_chng</td>\n";
1818                         print "<td class=\"link\">";
1819                         if ($action eq 'commitdiff') {
1820                                 # link to patch
1821                                 $patchno++;
1822                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1823                                 print " | ";
1824                         }
1825                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1826                                                      file_name=>$diff{'file'})},
1827                                       "blame") . " | ";
1828                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1829                                                      file_name=>$diff{'file'})},
1830                                       "history");
1831                         print "</td>\n";
1832
1833                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1834                         my $mode_chnge = "";
1835                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1836                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1837                                 if ($from_file_type != $to_file_type) {
1838                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1839                                 }
1840                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1841                                         if ($from_mode_str && $to_mode_str) {
1842                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1843                                         } elsif ($to_mode_str) {
1844                                                 $mode_chnge .= " mode: $to_mode_str";
1845                                         }
1846                                 }
1847                                 $mode_chnge .= "]</span>\n";
1848                         }
1849                         print "<td>";
1850                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1851                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1852                                        -class => "list"}, esc_html($diff{'file'}));
1853                         print "</td>\n";
1854                         print "<td>$mode_chnge</td>\n";
1855                         print "<td class=\"link\">";
1856                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1857                                 if ($action eq 'commitdiff') {
1858                                         # link to patch
1859                                         $patchno++;
1860                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1861                                 } else {
1862                                         print $cgi->a({-href => href(action=>"blobdiff",
1863                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1864                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1865                                                                      file_name=>$diff{'file'})},
1866                                                       "diff");
1867                                 }
1868                                 print " | ";
1869                         }
1870                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1871                                                      file_name=>$diff{'file'})},
1872                                       "blame") . " | ";
1873                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1874                                                      file_name=>$diff{'file'})},
1875                                       "history");
1876                         print "</td>\n";
1877
1878                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1879                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1880                         my $nstatus = $status_name{$diff{'status'}};
1881                         my $mode_chng = "";
1882                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1883                                 # mode also for directories, so we cannot use $to_mode_str
1884                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1885                         }
1886                         print "<td>" .
1887                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1888                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1889                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1890                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1891                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1892                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1893                                       -class => "list"}, esc_html($diff{'from_file'})) .
1894                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1895                               "<td class=\"link\">";
1896                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1897                                 if ($action eq 'commitdiff') {
1898                                         # link to patch
1899                                         $patchno++;
1900                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1901                                 } else {
1902                                         print $cgi->a({-href => href(action=>"blobdiff",
1903                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1904                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1905                                                                      file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1906                                                       "diff");
1907                                 }
1908                                 print " | ";
1909                         }
1910                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1911                                                      file_name=>$diff{'from_file'})},
1912                                       "blame") . " | ";
1913                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1914                                                      file_name=>$diff{'from_file'})},
1915                                       "history");
1916                         print "</td>\n";
1917
1918                 } # we should not encounter Unmerged (U) or Unknown (X) status
1919                 print "</tr>\n";
1920         }
1921         print "</table>\n";
1922 }
1923
1924 sub git_patchset_body {
1925         my ($fd, $difftree, $hash, $hash_parent) = @_;
1926
1927         my $patch_idx = 0;
1928         my $in_header = 0;
1929         my $patch_found = 0;
1930         my $diffinfo;
1931
1932         print "<div class=\"patchset\">\n";
1933
1934         LINE:
1935         while (my $patch_line = <$fd>) {
1936                 chomp $patch_line;
1937
1938                 if ($patch_line =~ m/^diff /) { # "git diff" header
1939                         # beginning of patch (in patchset)
1940                         if ($patch_found) {
1941                                 # close previous patch
1942                                 print "</div>\n"; # class="patch"
1943                         } else {
1944                                 # first patch in patchset
1945                                 $patch_found = 1;
1946                         }
1947                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1948
1949                         if (ref($difftree->[$patch_idx]) eq "HASH") {
1950                                 $diffinfo = $difftree->[$patch_idx];
1951                         } else {
1952                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1953                         }
1954                         $patch_idx++;
1955
1956                         # for now, no extended header, hence we skip empty patches
1957                         # companion to  next LINE if $in_header;
1958                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1959                                 $in_header = 1;
1960                                 next LINE;
1961                         }
1962
1963                         if ($diffinfo->{'status'} eq "A") { # added
1964                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1965                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1966                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1967                                               $diffinfo->{'to_id'}) . "(new)" .
1968                                       "</div>\n"; # class="diff_info"
1969
1970                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
1971                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1972                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1973                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1974                                               $diffinfo->{'from_id'}) . "(deleted)" .
1975                                       "</div>\n"; # class="diff_info"
1976
1977                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
1978                                  $diffinfo->{'status'} eq "C" || # copied
1979                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1980                                 print "<div class=\"diff_info\">" .
1981                                       file_type($diffinfo->{'from_mode'}) . ":" .
1982                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1983                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1984                                               $diffinfo->{'from_id'}) .
1985                                       " -> " .
1986                                       file_type($diffinfo->{'to_mode'}) . ":" .
1987                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1988                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1989                                               $diffinfo->{'to_id'});
1990                                 print "</div>\n"; # class="diff_info"
1991
1992                         } else { # modified, mode changed, ...
1993                                 print "<div class=\"diff_info\">" .
1994                                       file_type($diffinfo->{'from_mode'}) . ":" .
1995                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1996                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1997                                               $diffinfo->{'from_id'}) .
1998                                       " -> " .
1999                                       file_type($diffinfo->{'to_mode'}) . ":" .
2000                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2001                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2002                                               $diffinfo->{'to_id'});
2003                                 print "</div>\n"; # class="diff_info"
2004                         }
2005
2006                         #print "<div class=\"diff extended_header\">\n";
2007                         $in_header = 1;
2008                         next LINE;
2009                 } # start of patch in patchset
2010
2011
2012                 if ($in_header && $patch_line =~ m/^---/) {
2013                         #print "</div>\n"; # class="diff extended_header"
2014                         $in_header = 0;
2015
2016                         my $file = $diffinfo->{'from_file'};
2017                         $file  ||= $diffinfo->{'file'};
2018                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2019                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
2020                                         -class => "list"}, esc_html($file));
2021                         $patch_line =~ s|a/.*$|a/$file|g;
2022                         print "<div class=\"diff from_file\">$patch_line</div>\n";
2023
2024                         $patch_line = <$fd>;
2025                         chomp $patch_line;
2026
2027                         #$patch_line =~ m/^+++/;
2028                         $file    = $diffinfo->{'to_file'};
2029                         $file  ||= $diffinfo->{'file'};
2030                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2031                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
2032                                         -class => "list"}, esc_html($file));
2033                         $patch_line =~ s|b/.*|b/$file|g;
2034                         print "<div class=\"diff to_file\">$patch_line</div>\n";
2035
2036                         next LINE;
2037                 }
2038                 next LINE if $in_header;
2039
2040                 print format_diff_line($patch_line);
2041         }
2042         print "</div>\n" if $patch_found; # class="patch"
2043
2044         print "</div>\n"; # class="patchset"
2045 }
2046
2047 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2048
2049 sub git_shortlog_body {
2050         # uses global variable $project
2051         my ($revlist, $from, $to, $refs, $extra) = @_;
2052
2053         $from = 0 unless defined $from;
2054         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2055
2056         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2057         my $alternate = 1;
2058         for (my $i = $from; $i <= $to; $i++) {
2059                 my $commit = $revlist->[$i];
2060                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2061                 my $ref = format_ref_marker($refs, $commit);
2062                 my %co = parse_commit($commit);
2063                 if ($alternate) {
2064                         print "<tr class=\"dark\">\n";
2065                 } else {
2066                         print "<tr class=\"light\">\n";
2067                 }
2068                 $alternate ^= 1;
2069                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2070                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2071                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2072                       "<td>";
2073                 print format_subject_html($co{'title'}, $co{'title_short'},
2074                                           href(action=>"commit", hash=>$commit), $ref);
2075                 print "</td>\n" .
2076                       "<td class=\"link\">" .
2077                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2078                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") . " | " .
2079                       $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2080                 print "</td>\n" .
2081                       "</tr>\n";
2082         }
2083         if (defined $extra) {
2084                 print "<tr>\n" .
2085                       "<td colspan=\"4\">$extra</td>\n" .
2086                       "</tr>\n";
2087         }
2088         print "</table>\n";
2089 }
2090
2091 sub git_history_body {
2092         # Warning: assumes constant type (blob or tree) during history
2093         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2094
2095         $from = 0 unless defined $from;
2096         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2097
2098         print "<table class=\"history\" cellspacing=\"0\">\n";
2099         my $alternate = 1;
2100         for (my $i = $from; $i <= $to; $i++) {
2101                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2102                         next;
2103                 }
2104
2105                 my $commit = $1;
2106                 my %co = parse_commit($commit);
2107                 if (!%co) {
2108                         next;
2109                 }
2110
2111                 my $ref = format_ref_marker($refs, $commit);
2112
2113                 if ($alternate) {
2114                         print "<tr class=\"dark\">\n";
2115                 } else {
2116                         print "<tr class=\"light\">\n";
2117                 }
2118                 $alternate ^= 1;
2119                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2120                       # shortlog uses      chop_str($co{'author_name'}, 10)
2121                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2122                       "<td>";
2123                 # originally git_history used chop_str($co{'title'}, 50)
2124                 print format_subject_html($co{'title'}, $co{'title_short'},
2125                                           href(action=>"commit", hash=>$commit), $ref);
2126                 print "</td>\n" .
2127                       "<td class=\"link\">" .
2128                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2129                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2130
2131                 if ($ftype eq 'blob') {
2132                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2133                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2134                         if (defined $blob_current && defined $blob_parent &&
2135                                         $blob_current ne $blob_parent) {
2136                                 print " | " .
2137                                         $cgi->a({-href => href(action=>"blobdiff",
2138                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2139                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2140                                                                file_name=>$file_name)},
2141                                                 "diff to current");
2142                         }
2143                 }
2144                 print "</td>\n" .
2145                       "</tr>\n";
2146         }
2147         if (defined $extra) {
2148                 print "<tr>\n" .
2149                       "<td colspan=\"4\">$extra</td>\n" .
2150                       "</tr>\n";
2151         }
2152         print "</table>\n";
2153 }
2154
2155 sub git_tags_body {
2156         # uses global variable $project
2157         my ($taglist, $from, $to, $extra) = @_;
2158         $from = 0 unless defined $from;
2159         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2160
2161         print "<table class=\"tags\" cellspacing=\"0\">\n";
2162         my $alternate = 1;
2163         for (my $i = $from; $i <= $to; $i++) {
2164                 my $entry = $taglist->[$i];
2165                 my %tag = %$entry;
2166                 my $comment_lines = $tag{'comment'};
2167                 my $comment = shift @$comment_lines;
2168                 my $comment_short;
2169                 if (defined $comment) {
2170                         $comment_short = chop_str($comment, 30, 5);
2171                 }
2172                 if ($alternate) {
2173                         print "<tr class=\"dark\">\n";
2174                 } else {
2175                         print "<tr class=\"light\">\n";
2176                 }
2177                 $alternate ^= 1;
2178                 print "<td><i>$tag{'age'}</i></td>\n" .
2179                       "<td>" .
2180                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2181                                -class => "list name"}, esc_html($tag{'name'})) .
2182                       "</td>\n" .
2183                       "<td>";
2184                 if (defined $comment) {
2185                         print format_subject_html($comment, $comment_short,
2186                                                   href(action=>"tag", hash=>$tag{'id'}));
2187                 }
2188                 print "</td>\n" .
2189                       "<td class=\"selflink\">";
2190                 if ($tag{'type'} eq "tag") {
2191                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2192                 } else {
2193                         print "&nbsp;";
2194                 }
2195                 print "</td>\n" .
2196                       "<td class=\"link\">" . " | " .
2197                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2198                 if ($tag{'reftype'} eq "commit") {
2199                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2200                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2201                 } elsif ($tag{'reftype'} eq "blob") {
2202                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2203                 }
2204                 print "</td>\n" .
2205                       "</tr>";
2206         }
2207         if (defined $extra) {
2208                 print "<tr>\n" .
2209                       "<td colspan=\"5\">$extra</td>\n" .
2210                       "</tr>\n";
2211         }
2212         print "</table>\n";
2213 }
2214
2215 sub git_heads_body {
2216         # uses global variable $project
2217         my ($headlist, $head, $from, $to, $extra) = @_;
2218         $from = 0 unless defined $from;
2219         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2220
2221         print "<table class=\"heads\" cellspacing=\"0\">\n";
2222         my $alternate = 1;
2223         for (my $i = $from; $i <= $to; $i++) {
2224                 my $entry = $headlist->[$i];
2225                 my %tag = %$entry;
2226                 my $curr = $tag{'id'} eq $head;
2227                 if ($alternate) {
2228                         print "<tr class=\"dark\">\n";
2229                 } else {
2230                         print "<tr class=\"light\">\n";
2231                 }
2232                 $alternate ^= 1;
2233                 print "<td><i>$tag{'age'}</i></td>\n" .
2234                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2235                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2236                                -class => "list name"},esc_html($tag{'name'})) .
2237                       "</td>\n" .
2238                       "<td class=\"link\">" .
2239                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2240                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2241                       $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2242                       "</td>\n" .
2243                       "</tr>";
2244         }
2245         if (defined $extra) {
2246                 print "<tr>\n" .
2247                       "<td colspan=\"3\">$extra</td>\n" .
2248                       "</tr>\n";
2249         }
2250         print "</table>\n";
2251 }
2252
2253 ## ======================================================================
2254 ## ======================================================================
2255 ## actions
2256
2257 sub git_project_list {
2258         my $order = $cgi->param('o');
2259         if (defined $order && $order !~ m/project|descr|owner|age/) {
2260                 die_error(undef, "Unknown order parameter");
2261         }
2262
2263         my @list = git_get_projects_list();
2264         my @projects;
2265         if (!@list) {
2266                 die_error(undef, "No projects found");
2267         }
2268         foreach my $pr (@list) {
2269                 my $head = git_get_head_hash($pr->{'path'});
2270                 if (!defined $head) {
2271                         next;
2272                 }
2273                 $git_dir = "$projectroot/$pr->{'path'}";
2274                 my %co = parse_commit($head);
2275                 if (!%co) {
2276                         next;
2277                 }
2278                 $pr->{'commit'} = \%co;
2279                 if (!defined $pr->{'descr'}) {
2280                         my $descr = git_get_project_description($pr->{'path'}) || "";
2281                         $pr->{'descr'} = chop_str($descr, 25, 5);
2282                 }
2283                 if (!defined $pr->{'owner'}) {
2284                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2285                 }
2286                 push @projects, $pr;
2287         }
2288
2289         git_header_html();
2290         if (-f $home_text) {
2291                 print "<div class=\"index_include\">\n";
2292                 open (my $fd, $home_text);
2293                 print <$fd>;
2294                 close $fd;
2295                 print "</div>\n";
2296         }
2297         print "<table class=\"project_list\">\n" .
2298               "<tr>\n";
2299         $order ||= "project";
2300         if ($order eq "project") {
2301                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2302                 print "<th>Project</th>\n";
2303         } else {
2304                 print "<th>" .
2305                       $cgi->a({-href => href(project=>undef, order=>'project'),
2306                                -class => "header"}, "Project") .
2307                       "</th>\n";
2308         }
2309         if ($order eq "descr") {
2310                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2311                 print "<th>Description</th>\n";
2312         } else {
2313                 print "<th>" .
2314                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2315                                -class => "header"}, "Description") .
2316                       "</th>\n";
2317         }
2318         if ($order eq "owner") {
2319                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2320                 print "<th>Owner</th>\n";
2321         } else {
2322                 print "<th>" .
2323                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2324                                -class => "header"}, "Owner") .
2325                       "</th>\n";
2326         }
2327         if ($order eq "age") {
2328                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2329                 print "<th>Last Change</th>\n";
2330         } else {
2331                 print "<th>" .
2332                       $cgi->a({-href => href(project=>undef, order=>'age'),
2333                                -class => "header"}, "Last Change") .
2334                       "</th>\n";
2335         }
2336         print "<th></th>\n" .
2337               "</tr>\n";
2338         my $alternate = 1;
2339         foreach my $pr (@projects) {
2340                 if ($alternate) {
2341                         print "<tr class=\"dark\">\n";
2342                 } else {
2343                         print "<tr class=\"light\">\n";
2344                 }
2345                 $alternate ^= 1;
2346                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2347                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2348                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2349                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2350                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2351                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2352                       "<td class=\"link\">" .
2353                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2354                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2355                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2356                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2357                       "</td>\n" .
2358                       "</tr>\n";
2359         }
2360         print "</table>\n";
2361         git_footer_html();
2362 }
2363
2364 sub git_project_index {
2365         my @projects = git_get_projects_list();
2366
2367         print $cgi->header(
2368                 -type => 'text/plain',
2369                 -charset => 'utf-8',
2370                 -content_disposition => 'inline; filename="index.aux"');
2371
2372         foreach my $pr (@projects) {
2373                 if (!exists $pr->{'owner'}) {
2374                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2375                 }
2376
2377                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2378                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2379                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2380                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2381                 $path  =~ s/ /\+/g;
2382                 $owner =~ s/ /\+/g;
2383
2384                 print "$path $owner\n";
2385         }
2386 }
2387
2388 sub git_summary {
2389         my $descr = git_get_project_description($project) || "none";
2390         my $head = git_get_head_hash($project);
2391         my %co = parse_commit($head);
2392         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2393
2394         my $owner = git_get_project_owner($project);
2395
2396         my ($reflist, $refs) = git_get_refs_list();
2397
2398         my @taglist;
2399         my @headlist;
2400         foreach my $ref (@$reflist) {
2401                 if ($ref->{'name'} =~ s!^heads/!!) {
2402                         push @headlist, $ref;
2403                 } else {
2404                         $ref->{'name'} =~ s!^tags/!!;
2405                         push @taglist, $ref;
2406                 }
2407         }
2408
2409         git_header_html();
2410         git_print_page_nav('summary','', $head);
2411
2412         print "<div class=\"title\">&nbsp;</div>\n";
2413         print "<table cellspacing=\"0\">\n" .
2414               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2415               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2416               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2417         # use per project git URL list in $projectroot/$project/cloneurl
2418         # or make project git URL from git base URL and project name
2419         my $url_tag = "URL";
2420         my @url_list = git_get_project_url_list($project);
2421         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2422         foreach my $git_url (@url_list) {
2423                 next unless $git_url;
2424                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2425                 $url_tag = "";
2426         }
2427         print "</table>\n";
2428
2429         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2430                 git_get_head_hash($project)
2431                 or die_error(undef, "Open git-rev-list failed");
2432         my @revlist = map { chomp; $_ } <$fd>;
2433         close $fd;
2434         git_print_header_div('shortlog');
2435         git_shortlog_body(\@revlist, 0, 15, $refs,
2436                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2437
2438         if (@taglist) {
2439                 git_print_header_div('tags');
2440                 git_tags_body(\@taglist, 0, 15,
2441                               $cgi->a({-href => href(action=>"tags")}, "..."));
2442         }
2443
2444         if (@headlist) {
2445                 git_print_header_div('heads');
2446                 git_heads_body(\@headlist, $head, 0, 15,
2447                                $cgi->a({-href => href(action=>"heads")}, "..."));
2448         }
2449
2450         git_footer_html();
2451 }
2452
2453 sub git_tag {
2454         my $head = git_get_head_hash($project);
2455         git_header_html();
2456         git_print_page_nav('','', $head,undef,$head);
2457         my %tag = parse_tag($hash);
2458         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2459         print "<div class=\"title_text\">\n" .
2460               "<table cellspacing=\"0\">\n" .
2461               "<tr>\n" .
2462               "<td>object</td>\n" .
2463               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2464                                $tag{'object'}) . "</td>\n" .
2465               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2466                                               $tag{'type'}) . "</td>\n" .
2467               "</tr>\n";
2468         if (defined($tag{'author'})) {
2469                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2470                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2471                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2472                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2473                         "</td></tr>\n";
2474         }
2475         print "</table>\n\n" .
2476               "</div>\n";
2477         print "<div class=\"page_body\">";
2478         my $comment = $tag{'comment'};
2479         foreach my $line (@$comment) {
2480                 print esc_html($line) . "<br/>\n";
2481         }
2482         print "</div>\n";
2483         git_footer_html();
2484 }
2485
2486 sub git_blame2 {
2487         my $fd;
2488         my $ftype;
2489
2490         my ($have_blame) = gitweb_check_feature('blame');
2491         if (!$have_blame) {
2492                 die_error('403 Permission denied', "Permission denied");
2493         }
2494         die_error('404 Not Found', "File name not defined") if (!$file_name);
2495         $hash_base ||= git_get_head_hash($project);
2496         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2497         my %co = parse_commit($hash_base)
2498                 or die_error(undef, "Reading commit failed");
2499         if (!defined $hash) {
2500                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2501                         or die_error(undef, "Error looking up file");
2502         }
2503         $ftype = git_get_type($hash);
2504         if ($ftype !~ "blob") {
2505                 die_error("400 Bad Request", "Object is not a blob");
2506         }
2507         open ($fd, "-|", git_cmd(), "blame", '--porcelain', '--',
2508               $file_name, $hash_base)
2509                 or die_error(undef, "Open git-blame failed");
2510         git_header_html();
2511         my $formats_nav =
2512                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2513                         "blob") .
2514                 " | " .
2515                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2516                         "history") .
2517                 " | " .
2518                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2519                         "HEAD");
2520         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2521         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2522         git_print_page_path($file_name, $ftype, $hash_base);
2523         my @rev_color = (qw(light2 dark2));
2524         my $num_colors = scalar(@rev_color);
2525         my $current_color = 0;
2526         my $last_rev;
2527         print <<HTML;
2528 <div class="page_body">
2529 <table class="blame">
2530 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2531 HTML
2532         my %metainfo = ();
2533         while (1) {
2534                 $_ = <$fd>;
2535                 last unless defined $_;
2536                 my ($full_rev, $orig_lineno, $lineno, $group_size) =
2537                     /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
2538                 if (!exists $metainfo{$full_rev}) {
2539                         $metainfo{$full_rev} = {};
2540                 }
2541                 my $meta = $metainfo{$full_rev};
2542                 while (<$fd>) {
2543                         last if (s/^\t//);
2544                         if (/^(\S+) (.*)$/) {
2545                                 $meta->{$1} = $2;
2546                         }
2547                 }
2548                 my $data = $_;
2549                 my $rev = substr($full_rev, 0, 8);
2550                 my $author = $meta->{'author'};
2551                 my %date = parse_date($meta->{'author-time'},
2552                                       $meta->{'author-tz'});
2553                 my $date = $date{'iso-tz'};
2554                 if ($group_size) {
2555                         $current_color = ++$current_color % $num_colors;
2556                 }
2557                 print "<tr class=\"$rev_color[$current_color]\">\n";
2558                 if ($group_size) {
2559                         print "<td class=\"sha1\"";
2560                         print " title=\"$author, $date\"";
2561                         print " rowspan=\"$group_size\"" if ($group_size > 1);
2562                         print ">";
2563                         print $cgi->a({-href => href(action=>"commit",
2564                                                      hash=>$full_rev,
2565                                                      file_name=>$file_name)},
2566                                       esc_html($rev));
2567                         print "</td>\n";
2568                 }
2569                 my $blamed = href(action => 'blame',
2570                                   file_name => $meta->{'filename'},
2571                                   hash_base => $full_rev);
2572                 print "<td class=\"linenr\">";
2573                 print $cgi->a({ -href => "$blamed#l$orig_lineno",
2574                                 -id => "l$lineno",
2575                                 -class => "linenr" },
2576                               esc_html($lineno));
2577                 print "</td>";
2578                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2579                 print "</tr>\n";
2580         }
2581         print "</table>\n";
2582         print "</div>";
2583         close $fd
2584                 or print "Reading blob failed\n";
2585         git_footer_html();
2586 }
2587
2588 sub git_blame {
2589         my $fd;
2590
2591         my ($have_blame) = gitweb_check_feature('blame');
2592         if (!$have_blame) {
2593                 die_error('403 Permission denied', "Permission denied");
2594         }
2595         die_error('404 Not Found', "File name not defined") if (!$file_name);
2596         $hash_base ||= git_get_head_hash($project);
2597         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2598         my %co = parse_commit($hash_base)
2599                 or die_error(undef, "Reading commit failed");
2600         if (!defined $hash) {
2601                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2602                         or die_error(undef, "Error lookup file");
2603         }
2604         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2605                 or die_error(undef, "Open git-annotate failed");
2606         git_header_html();
2607         my $formats_nav =
2608                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2609                         "blob") .
2610                 " | " .
2611                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2612                         "history") .
2613                 " | " .
2614                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2615                         "HEAD");
2616         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2617         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2618         git_print_page_path($file_name, 'blob', $hash_base);
2619         print "<div class=\"page_body\">\n";
2620         print <<HTML;
2621 <table class="blame">
2622   <tr>
2623     <th>Commit</th>
2624     <th>Age</th>
2625     <th>Author</th>
2626     <th>Line</th>
2627     <th>Data</th>
2628   </tr>
2629 HTML
2630         my @line_class = (qw(light dark));
2631         my $line_class_len = scalar (@line_class);
2632         my $line_class_num = $#line_class;
2633         while (my $line = <$fd>) {
2634                 my $long_rev;
2635                 my $short_rev;
2636                 my $author;
2637                 my $time;
2638                 my $lineno;
2639                 my $data;
2640                 my $age;
2641                 my $age_str;
2642                 my $age_class;
2643
2644                 chomp $line;
2645                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2646
2647                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2648                         $long_rev = $1;
2649                         $author   = $2;
2650                         $time     = $3;
2651                         $lineno   = $4;
2652                         $data     = $5;
2653                 } else {
2654                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2655                         next;
2656                 }
2657                 $short_rev  = substr ($long_rev, 0, 8);
2658                 $age        = time () - $time;
2659                 $age_str    = age_string ($age);
2660                 $age_str    =~ s/ /&nbsp;/g;
2661                 $age_class  = age_class($age);
2662                 $author     = esc_html ($author);
2663                 $author     =~ s/ /&nbsp;/g;
2664
2665                 $data = untabify($data);
2666                 $data = esc_html ($data);
2667
2668                 print <<HTML;
2669   <tr class="$line_class[$line_class_num]">
2670     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2671     <td class="$age_class">$age_str</td>
2672     <td>$author</td>
2673     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2674     <td class="pre">$data</td>
2675   </tr>
2676 HTML
2677         } # while (my $line = <$fd>)
2678         print "</table>\n\n";
2679         close $fd
2680                 or print "Reading blob failed.\n";
2681         print "</div>";
2682         git_footer_html();
2683 }
2684
2685 sub git_tags {
2686         my $head = git_get_head_hash($project);
2687         git_header_html();
2688         git_print_page_nav('','', $head,undef,$head);
2689         git_print_header_div('summary', $project);
2690
2691         my ($taglist) = git_get_refs_list("tags");
2692         if (@$taglist) {
2693                 git_tags_body($taglist);
2694         }
2695         git_footer_html();
2696 }
2697
2698 sub git_heads {
2699         my $head = git_get_head_hash($project);
2700         git_header_html();
2701         git_print_page_nav('','', $head,undef,$head);
2702         git_print_header_div('summary', $project);
2703
2704         my ($headlist) = git_get_refs_list("heads");
2705         if (@$headlist) {
2706                 git_heads_body($headlist, $head);
2707         }
2708         git_footer_html();
2709 }
2710
2711 sub git_blob_plain {
2712         my $expires;
2713
2714         if (!defined $hash) {
2715                 if (defined $file_name) {
2716                         my $base = $hash_base || git_get_head_hash($project);
2717                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2718                                 or die_error(undef, "Error lookup file");
2719                 } else {
2720                         die_error(undef, "No file name defined");
2721                 }
2722         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2723                 # blobs defined by non-textual hash id's can be cached
2724                 $expires = "+1d";
2725         }
2726
2727         my $type = shift;
2728         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2729                 or die_error(undef, "Couldn't cat $file_name, $hash");
2730
2731         $type ||= blob_mimetype($fd, $file_name);
2732
2733         # save as filename, even when no $file_name is given
2734         my $save_as = "$hash";
2735         if (defined $file_name) {
2736                 $save_as = $file_name;
2737         } elsif ($type =~ m/^text\//) {
2738                 $save_as .= '.txt';
2739         }
2740
2741         print $cgi->header(
2742                 -type => "$type",
2743                 -expires=>$expires,
2744                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
2745         undef $/;
2746         binmode STDOUT, ':raw';
2747         print <$fd>;
2748         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2749         $/ = "\n";
2750         close $fd;
2751 }
2752
2753 sub git_blob {
2754         my $expires;
2755
2756         if (!defined $hash) {
2757                 if (defined $file_name) {
2758                         my $base = $hash_base || git_get_head_hash($project);
2759                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2760                                 or die_error(undef, "Error lookup file");
2761                 } else {
2762                         die_error(undef, "No file name defined");
2763                 }
2764         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2765                 # blobs defined by non-textual hash id's can be cached
2766                 $expires = "+1d";
2767         }
2768
2769         my ($have_blame) = gitweb_check_feature('blame');
2770         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2771                 or die_error(undef, "Couldn't cat $file_name, $hash");
2772         my $mimetype = blob_mimetype($fd, $file_name);
2773         if ($mimetype !~ m/^text\//) {
2774                 close $fd;
2775                 return git_blob_plain($mimetype);
2776         }
2777         git_header_html(undef, $expires);
2778         my $formats_nav = '';
2779         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2780                 if (defined $file_name) {
2781                         if ($have_blame) {
2782                                 $formats_nav .=
2783                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2784                                                                hash=>$hash, file_name=>$file_name)},
2785                                                 "blame") .
2786                                         " | ";
2787                         }
2788                         $formats_nav .=
2789                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2790                                                        hash=>$hash, file_name=>$file_name)},
2791                                         "history") .
2792                                 " | " .
2793                                 $cgi->a({-href => href(action=>"blob_plain",
2794                                                        hash=>$hash, file_name=>$file_name)},
2795                                         "raw") .
2796                                 " | " .
2797                                 $cgi->a({-href => href(action=>"blob",
2798                                                        hash_base=>"HEAD", file_name=>$file_name)},
2799                                         "HEAD");
2800                 } else {
2801                         $formats_nav .=
2802                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2803                 }
2804                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2805                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2806         } else {
2807                 print "<div class=\"page_nav\">\n" .
2808                       "<br/><br/></div>\n" .
2809                       "<div class=\"title\">$hash</div>\n";
2810         }
2811         git_print_page_path($file_name, "blob", $hash_base);
2812         print "<div class=\"page_body\">\n";
2813         my $nr;
2814         while (my $line = <$fd>) {
2815                 chomp $line;
2816                 $nr++;
2817                 $line = untabify($line);
2818                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2819                        $nr, $nr, $nr, esc_html($line);
2820         }
2821         close $fd
2822                 or print "Reading blob failed.\n";
2823         print "</div>";
2824         git_footer_html();
2825 }
2826
2827 sub git_tree {
2828         my $have_snapshot = gitweb_have_snapshot();
2829
2830         if (!defined $hash_base) {
2831                 $hash_base = "HEAD";
2832         }
2833         if (!defined $hash) {
2834                 if (defined $file_name) {
2835                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2836                 } else {
2837                         $hash = $hash_base;
2838                 }
2839         }
2840         $/ = "\0";
2841         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2842                 or die_error(undef, "Open git-ls-tree failed");
2843         my @entries = map { chomp; $_ } <$fd>;
2844         close $fd or die_error(undef, "Reading tree failed");
2845         $/ = "\n";
2846
2847         my $refs = git_get_references();
2848         my $ref = format_ref_marker($refs, $hash_base);
2849         git_header_html();
2850         my $base = "";
2851         my ($have_blame) = gitweb_check_feature('blame');
2852         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2853                 my @views_nav = ();
2854                 if (defined $file_name) {
2855                         push @views_nav,
2856                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2857                                                        hash=>$hash, file_name=>$file_name)},
2858                                         "history"),
2859                                 $cgi->a({-href => href(action=>"tree",
2860                                                        hash_base=>"HEAD", file_name=>$file_name)},
2861                                         "HEAD"),
2862                 }
2863                 if ($have_snapshot) {
2864                         # FIXME: Should be available when we have no hash base as well.
2865                         push @views_nav,
2866                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2867                                         "snapshot");
2868                 }
2869                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2870                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2871         } else {
2872                 undef $hash_base;
2873                 print "<div class=\"page_nav\">\n";
2874                 print "<br/><br/></div>\n";
2875                 print "<div class=\"title\">$hash</div>\n";
2876         }
2877         if (defined $file_name) {
2878                 $base = esc_html("$file_name/");
2879         }
2880         git_print_page_path($file_name, 'tree', $hash_base);
2881         print "<div class=\"page_body\">\n";
2882         print "<table cellspacing=\"0\">\n";
2883         my $alternate = 1;
2884         foreach my $line (@entries) {
2885                 my %t = parse_ls_tree_line($line, -z => 1);
2886
2887                 if ($alternate) {
2888                         print "<tr class=\"dark\">\n";
2889                 } else {
2890                         print "<tr class=\"light\">\n";
2891                 }
2892                 $alternate ^= 1;
2893
2894                 git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2895
2896                 print "</tr>\n";
2897         }
2898         print "</table>\n" .
2899               "</div>";
2900         git_footer_html();
2901 }
2902
2903 sub git_snapshot {
2904         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2905         my $have_snapshot = (defined $ctype && defined $suffix);
2906         if (!$have_snapshot) {
2907                 die_error('403 Permission denied', "Permission denied");
2908         }
2909
2910         if (!defined $hash) {
2911                 $hash = git_get_head_hash($project);
2912         }
2913
2914         my $filename = basename($project) . "-$hash.tar.$suffix";
2915
2916         print $cgi->header(
2917                 -type => 'application/x-tar',
2918                 -content_encoding => $ctype,
2919                 -content_disposition => 'inline; filename="' . "$filename" . '"',
2920                 -status => '200 OK');
2921
2922         my $git = git_cmd_str();
2923         my $name = $project;
2924         $name =~ s/\047/\047\\\047\047/g;
2925         open my $fd, "-|",
2926         "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
2927                 or die_error(undef, "Execute git-tar-tree failed.");
2928         binmode STDOUT, ':raw';
2929         print <$fd>;
2930         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2931         close $fd;
2932
2933 }
2934
2935 sub git_log {
2936         my $head = git_get_head_hash($project);
2937         if (!defined $hash) {
2938                 $hash = $head;
2939         }
2940         if (!defined $page) {
2941                 $page = 0;
2942         }
2943         my $refs = git_get_references();
2944
2945         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2946         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2947                 or die_error(undef, "Open git-rev-list failed");
2948         my @revlist = map { chomp; $_ } <$fd>;
2949         close $fd;
2950
2951         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2952
2953         git_header_html();
2954         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2955
2956         if (!@revlist) {
2957                 my %co = parse_commit($hash);
2958
2959                 git_print_header_div('summary', $project);
2960                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2961         }
2962         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2963                 my $commit = $revlist[$i];
2964                 my $ref = format_ref_marker($refs, $commit);
2965                 my %co = parse_commit($commit);
2966                 next if !%co;
2967                 my %ad = parse_date($co{'author_epoch'});
2968                 git_print_header_div('commit',
2969                                "<span class=\"age\">$co{'age_string'}</span>" .
2970                                esc_html($co{'title'}) . $ref,
2971                                $commit);
2972                 print "<div class=\"title_text\">\n" .
2973                       "<div class=\"log_link\">\n" .
2974                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2975                       " | " .
2976                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2977                       " | " .
2978                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
2979                       "<br/>\n" .
2980                       "</div>\n" .
2981                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2982                       "</div>\n";
2983
2984                 print "<div class=\"log_body\">\n";
2985                 git_print_simplified_log($co{'comment'});
2986                 print "</div>\n";
2987         }
2988         git_footer_html();
2989 }
2990
2991 sub git_commit {
2992         my %co = parse_commit($hash);
2993         if (!%co) {
2994                 die_error(undef, "Unknown commit object");
2995         }
2996         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2997         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2998
2999         my $parent = $co{'parent'};
3000         if (!defined $parent) {
3001                 $parent = "--root";
3002         }
3003         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
3004                 or die_error(undef, "Open git-diff-tree failed");
3005         my @difftree = map { chomp; $_ } <$fd>;
3006         close $fd or die_error(undef, "Reading git-diff-tree failed");
3007
3008         # non-textual hash id's can be cached
3009         my $expires;
3010         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3011                 $expires = "+1d";
3012         }
3013         my $refs = git_get_references();
3014         my $ref = format_ref_marker($refs, $co{'id'});
3015
3016         my $have_snapshot = gitweb_have_snapshot();
3017
3018         my @views_nav = ();
3019         if (defined $file_name && defined $co{'parent'}) {
3020                 push @views_nav,
3021                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3022                                 "blame");
3023         }
3024         git_header_html(undef, $expires);
3025         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
3026                            $hash, $co{'tree'}, $hash,
3027                            join (' | ', @views_nav));
3028
3029         if (defined $co{'parent'}) {
3030                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3031         } else {
3032                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3033         }
3034         print "<div class=\"title_text\">\n" .
3035               "<table cellspacing=\"0\">\n";
3036         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3037               "<tr>" .
3038               "<td></td><td> $ad{'rfc2822'}";
3039         if ($ad{'hour_local'} < 6) {
3040                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3041                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3042         } else {
3043                 printf(" (%02d:%02d %s)",
3044                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3045         }
3046         print "</td>" .
3047               "</tr>\n";
3048         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3049         print "<tr><td></td><td> $cd{'rfc2822'}" .
3050               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3051               "</td></tr>\n";
3052         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3053         print "<tr>" .
3054               "<td>tree</td>" .
3055               "<td class=\"sha1\">" .
3056               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3057                        class => "list"}, $co{'tree'}) .
3058               "</td>" .
3059               "<td class=\"link\">" .
3060               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3061                       "tree");
3062         if ($have_snapshot) {
3063                 print " | " .
3064                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3065         }
3066         print "</td>" .
3067               "</tr>\n";
3068         my $parents = $co{'parents'};
3069         foreach my $par (@$parents) {
3070                 print "<tr>" .
3071                       "<td>parent</td>" .
3072                       "<td class=\"sha1\">" .
3073                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3074                                class => "list"}, $par) .
3075                       "</td>" .
3076                       "<td class=\"link\">" .
3077                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3078                       " | " .
3079                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3080                       "</td>" .
3081                       "</tr>\n";
3082         }
3083         print "</table>".
3084               "</div>\n";
3085
3086         print "<div class=\"page_body\">\n";
3087         git_print_log($co{'comment'});
3088         print "</div>\n";
3089
3090         git_difftree_body(\@difftree, $hash, $parent);
3091
3092         git_footer_html();
3093 }
3094
3095 sub git_blobdiff {
3096         my $format = shift || 'html';
3097
3098         my $fd;
3099         my @difftree;
3100         my %diffinfo;
3101         my $expires;
3102
3103         # preparing $fd and %diffinfo for git_patchset_body
3104         # new style URI
3105         if (defined $hash_base && defined $hash_parent_base) {
3106                 if (defined $file_name) {
3107                         # read raw output
3108                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3109                                 "--", $file_name
3110                                 or die_error(undef, "Open git-diff-tree failed");
3111                         @difftree = map { chomp; $_ } <$fd>;
3112                         close $fd
3113                                 or die_error(undef, "Reading git-diff-tree failed");
3114                         @difftree
3115                                 or die_error('404 Not Found', "Blob diff not found");
3116
3117                 } elsif (defined $hash &&
3118                          $hash =~ /[0-9a-fA-F]{40}/) {
3119                         # try to find filename from $hash
3120
3121                         # read filtered raw output
3122                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3123                                 or die_error(undef, "Open git-diff-tree failed");
3124                         @difftree =
3125                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3126                                 # $hash == to_id
3127                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3128                                 map { chomp; $_ } <$fd>;
3129                         close $fd
3130                                 or die_error(undef, "Reading git-diff-tree failed");
3131                         @difftree
3132                                 or die_error('404 Not Found', "Blob diff not found");
3133
3134                 } else {
3135                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3136                 }
3137
3138                 if (@difftree > 1) {
3139                         die_error('404 Not Found', "Ambiguous blob diff specification");
3140                 }
3141
3142                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3143                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3144                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3145
3146                 $hash_parent ||= $diffinfo{'from_id'};
3147                 $hash        ||= $diffinfo{'to_id'};
3148
3149                 # non-textual hash id's can be cached
3150                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3151                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3152                         $expires = '+1d';
3153                 }
3154
3155                 # open patch output
3156                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3157                         '-p', $hash_parent_base, $hash_base,
3158                         "--", $file_name
3159                         or die_error(undef, "Open git-diff-tree failed");
3160         }
3161
3162         # old/legacy style URI
3163         if (!%diffinfo && # if new style URI failed
3164             defined $hash && defined $hash_parent) {
3165                 # fake git-diff-tree raw output
3166                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3167                 $diffinfo{'from_id'} = $hash_parent;
3168                 $diffinfo{'to_id'}   = $hash;
3169                 if (defined $file_name) {
3170                         if (defined $file_parent) {
3171                                 $diffinfo{'status'} = '2';
3172                                 $diffinfo{'from_file'} = $file_parent;
3173                                 $diffinfo{'to_file'}   = $file_name;
3174                         } else { # assume not renamed
3175                                 $diffinfo{'status'} = '1';
3176                                 $diffinfo{'from_file'} = $file_name;
3177                                 $diffinfo{'to_file'}   = $file_name;
3178                         }
3179                 } else { # no filename given
3180                         $diffinfo{'status'} = '2';
3181                         $diffinfo{'from_file'} = $hash_parent;
3182                         $diffinfo{'to_file'}   = $hash;
3183                 }
3184
3185                 # non-textual hash id's can be cached
3186                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3187                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3188                         $expires = '+1d';
3189                 }
3190
3191                 # open patch output
3192                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3193                         or die_error(undef, "Open git-diff failed");
3194         } else  {
3195                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3196                         unless %diffinfo;
3197         }
3198
3199         # header
3200         if ($format eq 'html') {
3201                 my $formats_nav =
3202                         $cgi->a({-href => href(action=>"blobdiff_plain",
3203                                                hash=>$hash, hash_parent=>$hash_parent,
3204                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3205                                                file_name=>$file_name, file_parent=>$file_parent)},
3206                                 "raw");
3207                 git_header_html(undef, $expires);
3208                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3209                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3210                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3211                 } else {
3212                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3213                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3214                 }
3215                 if (defined $file_name) {
3216                         git_print_page_path($file_name, "blob", $hash_base);
3217                 } else {
3218                         print "<div class=\"page_path\"></div>\n";
3219                 }
3220
3221         } elsif ($format eq 'plain') {
3222                 print $cgi->header(
3223                         -type => 'text/plain',
3224                         -charset => 'utf-8',
3225                         -expires => $expires,
3226                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3227
3228                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3229
3230         } else {
3231                 die_error(undef, "Unknown blobdiff format");
3232         }
3233
3234         # patch
3235         if ($format eq 'html') {
3236                 print "<div class=\"page_body\">\n";
3237
3238                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3239                 close $fd;
3240
3241                 print "</div>\n"; # class="page_body"
3242                 git_footer_html();
3243
3244         } else {
3245                 while (my $line = <$fd>) {
3246                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3247                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3248
3249                         print $line;
3250
3251                         last if $line =~ m!^\+\+\+!;
3252                 }
3253                 local $/ = undef;
3254                 print <$fd>;
3255                 close $fd;
3256         }
3257 }
3258
3259 sub git_blobdiff_plain {
3260         git_blobdiff('plain');
3261 }
3262
3263 sub git_commitdiff {
3264         my $format = shift || 'html';
3265         my %co = parse_commit($hash);
3266         if (!%co) {
3267                 die_error(undef, "Unknown commit object");
3268         }
3269         if (!defined $hash_parent) {
3270                 $hash_parent = $co{'parent'} || '--root';
3271         }
3272
3273         # read commitdiff
3274         my $fd;
3275         my @difftree;
3276         if ($format eq 'html') {
3277                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3278                         "--patch-with-raw", "--full-index", $hash_parent, $hash
3279                         or die_error(undef, "Open git-diff-tree failed");
3280
3281                 while (chomp(my $line = <$fd>)) {
3282                         # empty line ends raw part of diff-tree output
3283                         last unless $line;
3284                         push @difftree, $line;
3285                 }
3286
3287         } elsif ($format eq 'plain') {
3288                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3289                         '-p', $hash_parent, $hash
3290                         or die_error(undef, "Open git-diff-tree failed");
3291
3292         } else {
3293                 die_error(undef, "Unknown commitdiff format");
3294         }
3295
3296         # non-textual hash id's can be cached
3297         my $expires;
3298         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3299                 $expires = "+1d";
3300         }
3301
3302         # write commit message
3303         if ($format eq 'html') {
3304                 my $refs = git_get_references();
3305                 my $ref = format_ref_marker($refs, $co{'id'});
3306                 my $formats_nav =
3307                         $cgi->a({-href => href(action=>"commitdiff_plain",
3308                                                hash=>$hash, hash_parent=>$hash_parent)},
3309                                 "raw");
3310
3311                 git_header_html(undef, $expires);
3312                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3313                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3314                 git_print_authorship(\%co);
3315                 print "<div class=\"page_body\">\n";
3316                 print "<div class=\"log\">\n";
3317                 git_print_simplified_log($co{'comment'}, 1); # skip title
3318                 print "</div>\n"; # class="log"
3319
3320         } elsif ($format eq 'plain') {
3321                 my $refs = git_get_references("tags");
3322                 my $tagname = git_get_rev_name_tags($hash);
3323                 my $filename = basename($project) . "-$hash.patch";
3324
3325                 print $cgi->header(
3326                         -type => 'text/plain',
3327                         -charset => 'utf-8',
3328                         -expires => $expires,
3329                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3330                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3331                 print <<TEXT;
3332 From: $co{'author'}
3333 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3334 Subject: $co{'title'}
3335 TEXT
3336                 print "X-Git-Tag: $tagname\n" if $tagname;
3337                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3338
3339                 foreach my $line (@{$co{'comment'}}) {
3340                         print "$line\n";
3341                 }
3342                 print "---\n\n";
3343         }
3344
3345         # write patch
3346         if ($format eq 'html') {
3347                 git_difftree_body(\@difftree, $hash, $hash_parent);
3348                 print "<br/>\n";
3349
3350                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3351                 close $fd;
3352                 print "</div>\n"; # class="page_body"
3353                 git_footer_html();
3354
3355         } elsif ($format eq 'plain') {
3356                 local $/ = undef;
3357                 print <$fd>;
3358                 close $fd
3359                         or print "Reading git-diff-tree failed\n";
3360         }
3361 }
3362
3363 sub git_commitdiff_plain {
3364         git_commitdiff('plain');
3365 }
3366
3367 sub git_history {
3368         if (!defined $hash_base) {
3369                 $hash_base = git_get_head_hash($project);
3370         }
3371         if (!defined $page) {
3372                 $page = 0;
3373         }
3374         my $ftype;
3375         my %co = parse_commit($hash_base);
3376         if (!%co) {
3377                 die_error(undef, "Unknown commit object");
3378         }
3379
3380         my $refs = git_get_references();
3381         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3382
3383         if (!defined $hash && defined $file_name) {
3384                 $hash = git_get_hash_by_path($hash_base, $file_name);
3385         }
3386         if (defined $hash) {
3387                 $ftype = git_get_type($hash);
3388         }
3389
3390         open my $fd, "-|",
3391                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3392                         or die_error(undef, "Open git-rev-list-failed");
3393         my @revlist = map { chomp; $_ } <$fd>;
3394         close $fd
3395                 or die_error(undef, "Reading git-rev-list failed");
3396
3397         my $paging_nav = '';
3398         if ($page > 0) {
3399                 $paging_nav .=
3400                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3401                                                file_name=>$file_name)},
3402                                 "first");
3403                 $paging_nav .= " &sdot; " .
3404                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3405                                                file_name=>$file_name, page=>$page-1),
3406                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3407         } else {
3408                 $paging_nav .= "first";
3409                 $paging_nav .= " &sdot; prev";
3410         }
3411         if ($#revlist >= (100 * ($page+1)-1)) {
3412                 $paging_nav .= " &sdot; " .
3413                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3414                                                file_name=>$file_name, page=>$page+1),
3415                                  -accesskey => "n", -title => "Alt-n"}, "next");
3416         } else {
3417                 $paging_nav .= " &sdot; next";
3418         }
3419         my $next_link = '';
3420         if ($#revlist >= (100 * ($page+1)-1)) {
3421                 $next_link =
3422                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3423                                                file_name=>$file_name, page=>$page+1),
3424                                  -title => "Alt-n"}, "next");
3425         }
3426
3427         git_header_html();
3428         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3429         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3430         git_print_page_path($file_name, $ftype, $hash_base);
3431
3432         git_history_body(\@revlist, ($page * 100), $#revlist,
3433                          $refs, $hash_base, $ftype, $next_link);
3434
3435         git_footer_html();
3436 }
3437
3438 sub git_search {
3439         if (!defined $searchtext) {
3440                 die_error(undef, "Text field empty");
3441         }
3442         if (!defined $hash) {
3443                 $hash = git_get_head_hash($project);
3444         }
3445         my %co = parse_commit($hash);
3446         if (!%co) {
3447                 die_error(undef, "Unknown commit object");
3448         }
3449
3450         my $commit_search = 1;
3451         my $author_search = 0;
3452         my $committer_search = 0;
3453         my $pickaxe_search = 0;
3454         if ($searchtext =~ s/^author\\://i) {
3455                 $author_search = 1;
3456         } elsif ($searchtext =~ s/^committer\\://i) {
3457                 $committer_search = 1;
3458         } elsif ($searchtext =~ s/^pickaxe\\://i) {
3459                 $commit_search = 0;
3460                 $pickaxe_search = 1;
3461
3462                 # pickaxe may take all resources of your box and run for several minutes
3463                 # with every query - so decide by yourself how public you make this feature
3464                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3465                 if (!$have_pickaxe) {
3466                         die_error('403 Permission denied', "Permission denied");
3467                 }
3468         }
3469         git_header_html();
3470         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3471         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3472
3473         print "<table cellspacing=\"0\">\n";
3474         my $alternate = 1;
3475         if ($commit_search) {
3476                 $/ = "\0";
3477                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3478                 while (my $commit_text = <$fd>) {
3479                         if (!grep m/$searchtext/i, $commit_text) {
3480                                 next;
3481                         }
3482                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3483                                 next;
3484                         }
3485                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3486                                 next;
3487                         }
3488                         my @commit_lines = split "\n", $commit_text;
3489                         my %co = parse_commit(undef, \@commit_lines);
3490                         if (!%co) {
3491                                 next;
3492                         }
3493                         if ($alternate) {
3494                                 print "<tr class=\"dark\">\n";
3495                         } else {
3496                                 print "<tr class=\"light\">\n";
3497                         }
3498                         $alternate ^= 1;
3499                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3500                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3501                               "<td>" .
3502                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3503                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3504                         my $comment = $co{'comment'};
3505                         foreach my $line (@$comment) {
3506                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3507                                         my $lead = esc_html($1) || "";
3508                                         $lead = chop_str($lead, 30, 10);
3509                                         my $match = esc_html($2) || "";
3510                                         my $trail = esc_html($3) || "";
3511                                         $trail = chop_str($trail, 30, 10);
3512                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3513                                         print chop_str($text, 80, 5) . "<br/>\n";
3514                                 }
3515                         }
3516                         print "</td>\n" .
3517                               "<td class=\"link\">" .
3518                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3519                               " | " .
3520                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3521                         print "</td>\n" .
3522                               "</tr>\n";
3523                 }
3524                 close $fd;
3525         }
3526
3527         if ($pickaxe_search) {
3528                 $/ = "\n";
3529                 my $git_command = git_cmd_str();
3530                 open my $fd, "-|", "$git_command rev-list $hash | " .
3531                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3532                 undef %co;
3533                 my @files;
3534                 while (my $line = <$fd>) {
3535                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3536                                 my %set;
3537                                 $set{'file'} = $6;
3538                                 $set{'from_id'} = $3;
3539                                 $set{'to_id'} = $4;
3540                                 $set{'id'} = $set{'to_id'};
3541                                 if ($set{'id'} =~ m/0{40}/) {
3542                                         $set{'id'} = $set{'from_id'};
3543                                 }
3544                                 if ($set{'id'} =~ m/0{40}/) {
3545                                         next;
3546                                 }
3547                                 push @files, \%set;
3548                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3549                                 if (%co) {
3550                                         if ($alternate) {
3551                                                 print "<tr class=\"dark\">\n";
3552                                         } else {
3553                                                 print "<tr class=\"light\">\n";
3554                                         }
3555                                         $alternate ^= 1;
3556                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3557                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3558                                               "<td>" .
3559                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3560                                                       -class => "list subject"},
3561                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3562                                         while (my $setref = shift @files) {
3563                                                 my %set = %$setref;
3564                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3565                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3566                                                               -class => "list"},
3567                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3568                                                       "<br/>\n";
3569                                         }
3570                                         print "</td>\n" .
3571                                               "<td class=\"link\">" .
3572                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3573                                               " | " .
3574                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3575                                         print "</td>\n" .
3576                                               "</tr>\n";
3577                                 }
3578                                 %co = parse_commit($1);
3579                         }
3580                 }
3581                 close $fd;
3582         }
3583         print "</table>\n";
3584         git_footer_html();
3585 }
3586
3587 sub git_shortlog {
3588         my $head = git_get_head_hash($project);
3589         if (!defined $hash) {
3590                 $hash = $head;
3591         }
3592         if (!defined $page) {
3593                 $page = 0;
3594         }
3595         my $refs = git_get_references();
3596
3597         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3598         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3599                 or die_error(undef, "Open git-rev-list failed");
3600         my @revlist = map { chomp; $_ } <$fd>;
3601         close $fd;
3602
3603         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3604         my $next_link = '';
3605         if ($#revlist >= (100 * ($page+1)-1)) {
3606                 $next_link =
3607                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3608                                  -title => "Alt-n"}, "next");
3609         }
3610
3611
3612         git_header_html();
3613         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3614         git_print_header_div('summary', $project);
3615
3616         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3617
3618         git_footer_html();
3619 }
3620
3621 ## ......................................................................
3622 ## feeds (RSS, OPML)
3623
3624 sub git_rss {
3625         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3626         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3627                 or die_error(undef, "Open git-rev-list failed");
3628         my @revlist = map { chomp; $_ } <$fd>;
3629         close $fd or die_error(undef, "Reading git-rev-list failed");
3630         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3631         print <<XML;
3632 <?xml version="1.0" encoding="utf-8"?>
3633 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3634 <channel>
3635 <title>$project $my_uri $my_url</title>
3636 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3637 <description>$project log</description>
3638 <language>en</language>
3639 XML
3640
3641         for (my $i = 0; $i <= $#revlist; $i++) {
3642                 my $commit = $revlist[$i];
3643                 my %co = parse_commit($commit);
3644                 # we read 150, we always show 30 and the ones more recent than 48 hours
3645                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3646                         last;
3647                 }
3648                 my %cd = parse_date($co{'committer_epoch'});
3649                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3650                         $co{'parent'}, $co{'id'}
3651                         or next;
3652                 my @difftree = map { chomp; $_ } <$fd>;
3653                 close $fd
3654                         or next;
3655                 print "<item>\n" .
3656                       "<title>" .
3657                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3658                       "</title>\n" .
3659                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3660                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3661                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3662                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3663                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3664                       "<content:encoded>" .
3665                       "<![CDATA[\n";
3666                 my $comment = $co{'comment'};
3667                 foreach my $line (@$comment) {
3668                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
3669                         print "$line<br/>\n";
3670                 }
3671                 print "<br/>\n";
3672                 foreach my $line (@difftree) {
3673                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3674                                 next;
3675                         }
3676                         my $file = esc_html(unquote($7));
3677                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
3678                         print "$file<br/>\n";
3679                 }
3680                 print "]]>\n" .
3681                       "</content:encoded>\n" .
3682                       "</item>\n";
3683         }
3684         print "</channel></rss>";
3685 }
3686
3687 sub git_opml {
3688         my @list = git_get_projects_list();
3689
3690         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3691         print <<XML;
3692 <?xml version="1.0" encoding="utf-8"?>
3693 <opml version="1.0">
3694 <head>
3695   <title>$site_name Git OPML Export</title>
3696 </head>
3697 <body>
3698 <outline text="git RSS feeds">
3699 XML
3700
3701         foreach my $pr (@list) {
3702                 my %proj = %$pr;
3703                 my $head = git_get_head_hash($proj{'path'});
3704                 if (!defined $head) {
3705                         next;
3706                 }
3707                 $git_dir = "$projectroot/$proj{'path'}";
3708                 my %co = parse_commit($head);
3709                 if (!%co) {
3710                         next;
3711                 }
3712
3713                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3714                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3715                 my $html = "$my_url?p=$proj{'path'};a=summary";
3716                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3717         }
3718         print <<XML;
3719 </outline>
3720 </body>
3721 </opml>
3722 XML
3723 }