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

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40 # name of your site or organization to appear in page titles
  41 # replace this with something more descriptive for clearer bookmarks
  42 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44 # 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 # source of projects list
  63 our $projects_list = "++GITWEB_LIST++";
  64
  65 # show repository only if this file exists
  66 # (only effective if this variable evaluates to true)
  67 our $export_ok = "++GITWEB_EXPORT_OK++";
  68
  69 # only allow viewing of repositories also shown on the overview page
  70 our $strict_export = "++GITWEB_STRICT_EXPORT++";
  71
  72 # list of git base URLs used for URL to where fetch project from,
  73 # i.e. full URL is "$git_base_url/$project"
  74 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  75
  76 # default blob_plain mimetype and default charset for text/plain blob
  77 our $default_blob_plain_mimetype = 'text/plain';
  78 our $default_text_plain_charset  = undef;
  79
  80 # file to use for guessing MIME types before trying /etc/mime.types
  81 # (relative to the current git repository)
  82 our $mimetypes_file = undef;
  83
  84 # You define site-wide feature defaults here; override them with
  85 # $GITWEB_CONFIG as necessary.
  86 our %feature = (
  87         # feature => {
  88         #       'sub' => feature-sub (subroutine),
  89         #       'override' => allow-override (boolean),
  90         #       'default' => [ default options...] (array reference)}
  91         #
  92         # if feature is overridable (it means that allow-override has true value,
  93         # then feature-sub will be called with default options as parameters;
  94         # return value of feature-sub indicates if to enable specified feature
  95         #
  96         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  97
  98         'blame' => {
  99                 'sub' => \&feature_blame,
 100                 'override' => 0,
 101                 'default' => [0]},
 102
 103         'snapshot' => {
 104                 'sub' => \&feature_snapshot,
 105                 'override' => 0,
 106                 #         => [content-encoding, suffix, program]
 107                 'default' => ['x-gzip', 'gz', 'gzip']},
 108
 109         'pickaxe' => {
 110                 'sub' => \&feature_pickaxe,
 111                 'override' => 0,
 112                 'default' => [1]},
 113
 114         'pathinfo' => {
 115                 'override' => 0,
 116                 'default' => [0]},
 117 );
 118
 119 sub gitweb_check_feature {
 120         my ($name) = @_;
 121         return unless exists $feature{$name};
 122         my ($sub, $override, @defaults) = (
 123                 $feature{$name}{'sub'},
 124                 $feature{$name}{'override'},
 125                 @{$feature{$name}{'default'}});
 126         if (!$override) { return @defaults; }
 127         return $sub->(@defaults);
 128 }
 129
 130 # To enable system wide have in $GITWEB_CONFIG
 131 # $feature{'blame'}{'default'} = [1];
 132 # To have project specific config enable override in $GITWEB_CONFIG
 133 # $feature{'blame'}{'override'} = 1;
 134 # and in project config gitweb.blame = 0|1;
 135
 136 sub feature_blame {
 137         my ($val) = git_get_project_config('blame', '--bool');
 138
 139         if ($val eq 'true') {
 140                 return 1;
 141         } elsif ($val eq 'false') {
 142                 return 0;
 143         }
 144
 145         return $_[0];
 146 }
 147
 148 # To disable system wide have in $GITWEB_CONFIG
 149 # $feature{'snapshot'}{'default'} = [undef];
 150 # To have project specific config enable override in $GITWEB_CONFIG
 151 # $feature{'blame'}{'override'} = 1;
 152 # and in project config  gitweb.snapshot = none|gzip|bzip2
 153
 154 sub feature_snapshot {
 155         my ($ctype, $suffix, $command) = @_;
 156
 157         my ($val) = git_get_project_config('snapshot');
 158
 159         if ($val eq 'gzip') {
 160                 return ('x-gzip', 'gz', 'gzip');
 161         } elsif ($val eq 'bzip2') {
 162                 return ('x-bzip2', 'bz2', 'bzip2');
 163         } elsif ($val eq 'none') {
 164                 return ();
 165         }
 166
 167         return ($ctype, $suffix, $command);
 168 }
 169
 170 sub gitweb_have_snapshot {
 171         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 172         my $have_snapshot = (defined $ctype && defined $suffix);
 173
 174         return $have_snapshot;
 175 }
 176
 177 # To enable system wide have in $GITWEB_CONFIG
 178 # $feature{'pickaxe'}{'default'} = [1];
 179 # To have project specific config enable override in $GITWEB_CONFIG
 180 # $feature{'pickaxe'}{'override'} = 1;
 181 # and in project config gitweb.pickaxe = 0|1;
 182
 183 sub feature_pickaxe {
 184         my ($val) = git_get_project_config('pickaxe', '--bool');
 185
 186         if ($val eq 'true') {
 187                 return (1);
 188         } elsif ($val eq 'false') {
 189                 return (0);
 190         }
 191
 192         return ($_[0]);
 193 }
 194
 195 # checking HEAD file with -e is fragile if the repository was
 196 # initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 197 # and then pruned.
 198 sub check_head_link {
 199         my ($dir) = @_;
 200         my $headfile = "$dir/HEAD";
 201         return ((-e $headfile) ||
 202                 (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 203 }
 204
 205 sub check_export_ok {
 206         my ($dir) = @_;
 207         return (check_head_link($dir) &&
 208                 (!$export_ok || -e "$dir/$export_ok"));
 209 }
 210
 211 # rename detection options for git-diff and git-diff-tree
 212 # - default is '-M', with the cost proportional to
 213 #   (number of removed files) * (number of new files).
 214 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 215 #   (number of changed files + number of removed files) * (number of new files)
 216 # - even more costly is '-C', '--find-copies-harder' with cost
 217 #   (number of files in the original tree) * (number of new files)
 218 # - one might want to include '-B' option, e.g. '-B', '-M'
 219 our @diff_opts = ('-M'); # taken from git_commit
 220
 221 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 222 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 223
 224 # version of the core git binary
 225 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 226
 227 $projects_list ||= $projectroot;
 228
 229 # ======================================================================
 230 # input validation and dispatch
 231 our $action = $cgi->param('a');
 232 if (defined $action) {
 233         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 234                 die_error(undef, "Invalid action parameter");
 235         }
 236 }
 237
 238 # parameters which are pathnames
 239 our $project = $cgi->param('p');
 240 if (defined $project) {
 241         if (!validate_pathname($project) ||
 242             !(-d "$projectroot/$project") ||
 243             !check_head_link("$projectroot/$project") ||
 244             ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 245             ($strict_export && !project_in_list($project))) {
 246                 undef $project;
 247                 die_error(undef, "No such project");
 248         }
 249 }
 250
 251 our $file_name = $cgi->param('f');
 252 if (defined $file_name) {
 253         if (!validate_pathname($file_name)) {
 254                 die_error(undef, "Invalid file parameter");
 255         }
 256 }
 257
 258 our $file_parent = $cgi->param('fp');
 259 if (defined $file_parent) {
 260         if (!validate_pathname($file_parent)) {
 261                 die_error(undef, "Invalid file parent parameter");
 262         }
 263 }
 264
 265 # parameters which are refnames
 266 our $hash = $cgi->param('h');
 267 if (defined $hash) {
 268         if (!validate_refname($hash)) {
 269                 die_error(undef, "Invalid hash parameter");
 270         }
 271 }
 272
 273 our $hash_parent = $cgi->param('hp');
 274 if (defined $hash_parent) {
 275         if (!validate_refname($hash_parent)) {
 276                 die_error(undef, "Invalid hash parent parameter");
 277         }
 278 }
 279
 280 our $hash_base = $cgi->param('hb');
 281 if (defined $hash_base) {
 282         if (!validate_refname($hash_base)) {
 283                 die_error(undef, "Invalid hash base parameter");
 284         }
 285 }
 286
 287 our $hash_parent_base = $cgi->param('hpb');
 288 if (defined $hash_parent_base) {
 289         if (!validate_refname($hash_parent_base)) {
 290                 die_error(undef, "Invalid hash parent base parameter");
 291         }
 292 }
 293
 294 # other parameters
 295 our $page = $cgi->param('pg');
 296 if (defined $page) {
 297         if ($page =~ m/[^0-9]/) {
 298                 die_error(undef, "Invalid page parameter");
 299         }
 300 }
 301
 302 our $searchtext = $cgi->param('s');
 303 if (defined $searchtext) {
 304         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 305                 die_error(undef, "Invalid search parameter");
 306         }
 307         $searchtext = quotemeta $searchtext;
 308 }
 309
 310 # now read PATH_INFO and use it as alternative to parameters
 311 sub evaluate_path_info {
 312         return if defined $project;
 313         my $path_info = $ENV{"PATH_INFO"};
 314         return if !$path_info;
 315         $path_info =~ s,^/+,,;
 316         return if !$path_info;
 317         # find which part of PATH_INFO is project
 318         $project = $path_info;
 319         $project =~ s,/+$,,;
 320         while ($project && !check_head_link("$projectroot/$project")) {
 321                 $project =~ s,/*[^/]*$,,;
 322         }
 323         # validate project
 324         $project = validate_pathname($project);
 325         if (!$project ||
 326             ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 327             ($strict_export && !project_in_list($project))) {
 328                 undef $project;
 329                 return;
 330         }
 331         # do not change any parameters if an action is given using the query string
 332         return if $action;
 333         $path_info =~ s,^$project/*,,;
 334         my ($refname, $pathname) = split(/:/, $path_info, 2);
 335         if (defined $pathname) {
 336                 # we got "project.git/branch:filename" or "project.git/branch:dir/"
 337                 # we could use git_get_type(branch:pathname), but it needs $git_dir
 338                 $pathname =~ s,^/+,,;
 339                 if (!$pathname || substr($pathname, -1) eq "/") {
 340                         $action  ||= "tree";
 341                         $pathname =~ s,/$,,;
 342                 } else {
 343                         $action  ||= "blob_plain";
 344                 }
 345                 $hash_base ||= validate_refname($refname);
 346                 $file_name ||= validate_pathname($pathname);
 347         } elsif (defined $refname) {
 348                 # we got "project.git/branch"
 349                 $action ||= "shortlog";
 350                 $hash   ||= validate_refname($refname);
 351         }
 352 }
 353 evaluate_path_info();
 354
 355 # path to the current git repository
 356 our $git_dir;
 357 $git_dir = "$projectroot/$project" if $project;
 358
 359 # dispatch
 360 my %actions = (
 361         "blame" => \&git_blame2,
 362         "blobdiff" => \&git_blobdiff,
 363         "blobdiff_plain" => \&git_blobdiff_plain,
 364         "blob" => \&git_blob,
 365         "blob_plain" => \&git_blob_plain,
 366         "commitdiff" => \&git_commitdiff,
 367         "commitdiff_plain" => \&git_commitdiff_plain,
 368         "commit" => \&git_commit,
 369         "heads" => \&git_heads,
 370         "history" => \&git_history,
 371         "log" => \&git_log,
 372         "rss" => \&git_rss,
 373         "search" => \&git_search,
 374         "shortlog" => \&git_shortlog,
 375         "summary" => \&git_summary,
 376         "tag" => \&git_tag,
 377         "tags" => \&git_tags,
 378         "tree" => \&git_tree,
 379         "snapshot" => \&git_snapshot,
 380         # those below don't need $project
 381         "opml" => \&git_opml,
 382         "project_list" => \&git_project_list,
 383         "project_index" => \&git_project_index,
 384 );
 385
 386 if (defined $project) {
 387         $action ||= 'summary';
 388 } else {
 389         $action ||= 'project_list';
 390 }
 391 if (!defined($actions{$action})) {
 392         die_error(undef, "Unknown action");
 393 }
 394 if ($action !~ m/^(opml|project_list|project_index)$/ &&
 395     !$project) {
 396         die_error(undef, "Project needed");
 397 }
 398 $actions{$action}->();
 399 exit;
 400
 401 ## ======================================================================
 402 ## action links
 403
 404 sub href(%) {
 405         my %params = @_;
 406         my $href = $my_uri;
 407
 408         my @mapping = (
 409                 project => "p",
 410                 action => "a",
 411                 file_name => "f",
 412                 file_parent => "fp",
 413                 hash => "h",
 414                 hash_parent => "hp",
 415                 hash_base => "hb",
 416                 hash_parent_base => "hpb",
 417                 page => "pg",
 418                 order => "o",
 419                 searchtext => "s",
 420         );
 421         my %mapping = @mapping;
 422
 423         $params{'project'} = $project unless exists $params{'project'};
 424
 425         my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 426         if ($use_pathinfo) {
 427                 # use PATH_INFO for project name
 428                 $href .= "/$params{'project'}" if defined $params{'project'};
 429                 delete $params{'project'};
 430
 431                 # Summary just uses the project path URL
 432                 if (defined $params{'action'} && $params{'action'} eq 'summary') {
 433                         delete $params{'action'};
 434                 }
 435         }
 436
 437         # now encode the parameters explicitly
 438         my @result = ();
 439         for (my $i = 0; $i < @mapping; $i += 2) {
 440                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 441                 if (defined $params{$name}) {
 442                         push @result, $symbol . "=" . esc_param($params{$name});
 443                 }
 444         }
 445         $href .= "?" . join(';', @result) if scalar @result;
 446
 447         return $href;
 448 }
 449
 450
 451 ## ======================================================================
 452 ## validation, quoting/unquoting and escaping
 453
 454 sub validate_pathname {
 455         my $input = shift || return undef;
 456
 457         # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 458         # at the beginning, at the end, and between slashes.
 459         # also this catches doubled slashes
 460         if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 461                 return undef;
 462         }
 463         # no null characters
 464         if ($input =~ m!\0!) {
 465                 return undef;
 466         }
 467         return $input;
 468 }
 469
 470 sub validate_refname {
 471         my $input = shift || return undef;
 472
 473         # textual hashes are O.K.
 474         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 475                 return $input;
 476         }
 477         # it must be correct pathname
 478         $input = validate_pathname($input)
 479                 or return undef;
 480         # restrictions on ref name according to git-check-ref-format
 481         if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 482                 return undef;
 483         }
 484         return $input;
 485 }
 486
 487 # quote unsafe chars, but keep the slash, even when it's not
 488 # correct, but quoted slashes look too horrible in bookmarks
 489 sub esc_param {
 490         my $str = shift;
 491         $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 492         $str =~ s/\+/%2B/g;
 493         $str =~ s/ /\+/g;
 494         return $str;
 495 }
 496
 497 # quote unsafe chars in whole URL, so some charactrs cannot be quoted
 498 sub esc_url {
 499         my $str = shift;
 500         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 501         $str =~ s/\+/%2B/g;
 502         $str =~ s/ /\+/g;
 503         return $str;
 504 }
 505
 506 # replace invalid utf8 character with SUBSTITUTION sequence
 507 sub esc_html {
 508         my $str = shift;
 509         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 510         $str = escapeHTML($str);
 511         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 512         $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 513         return $str;
 514 }
 515
 516 # git may return quoted and escaped filenames
 517 sub unquote {
 518         my $str = shift;
 519         if ($str =~ m/^"(.*)"$/) {
 520                 $str = $1;
 521                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 522         }
 523         return $str;
 524 }
 525
 526 # escape tabs (convert tabs to spaces)
 527 sub untabify {
 528         my $line = shift;
 529
 530         while ((my $pos = index($line, "\t")) != -1) {
 531                 if (my $count = (8 - ($pos % 8))) {
 532                         my $spaces = ' ' x $count;
 533                         $line =~ s/\t/$spaces/;
 534                 }
 535         }
 536
 537         return $line;
 538 }
 539
 540 sub project_in_list {
 541         my $project = shift;
 542         my @list = git_get_projects_list();
 543         return @list && scalar(grep { $_->{'path'} eq $project } @list);
 544 }
 545
 546 ## ----------------------------------------------------------------------
 547 ## HTML aware string manipulation
 548
 549 sub chop_str {
 550         my $str = shift;
 551         my $len = shift;
 552         my $add_len = shift || 10;
 553
 554         # allow only $len chars, but don't cut a word if it would fit in $add_len
 555         # if it doesn't fit, cut it if it's still longer than the dots we would add
 556         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 557         my $body = $1;
 558         my $tail = $2;
 559         if (length($tail) > 4) {
 560                 $tail = " ...";
 561                 $body =~ s/&[^;]*$//; # remove chopped character entities
 562         }
 563         return "$body$tail";
 564 }
 565
 566 ## ----------------------------------------------------------------------
 567 ## functions returning short strings
 568
 569 # CSS class for given age value (in seconds)
 570 sub age_class {
 571         my $age = shift;
 572
 573         if ($age < 60*60*2) {
 574                 return "age0";
 575         } elsif ($age < 60*60*24*2) {
 576                 return "age1";
 577         } else {
 578                 return "age2";
 579         }
 580 }
 581
 582 # convert age in seconds to "nn units ago" string
 583 sub age_string {
 584         my $age = shift;
 585         my $age_str;
 586
 587         if ($age > 60*60*24*365*2) {
 588                 $age_str = (int $age/60/60/24/365);
 589                 $age_str .= " years ago";
 590         } elsif ($age > 60*60*24*(365/12)*2) {
 591                 $age_str = int $age/60/60/24/(365/12);
 592                 $age_str .= " months ago";
 593         } elsif ($age > 60*60*24*7*2) {
 594                 $age_str = int $age/60/60/24/7;
 595                 $age_str .= " weeks ago";
 596         } elsif ($age > 60*60*24*2) {
 597                 $age_str = int $age/60/60/24;
 598                 $age_str .= " days ago";
 599         } elsif ($age > 60*60*2) {
 600                 $age_str = int $age/60/60;
 601                 $age_str .= " hours ago";
 602         } elsif ($age > 60*2) {
 603                 $age_str = int $age/60;
 604                 $age_str .= " min ago";
 605         } elsif ($age > 2) {
 606                 $age_str = int $age;
 607                 $age_str .= " sec ago";
 608         } else {
 609                 $age_str .= " right now";
 610         }
 611         return $age_str;
 612 }
 613
 614 # convert file mode in octal to symbolic file mode string
 615 sub mode_str {
 616         my $mode = oct shift;
 617
 618         if (S_ISDIR($mode & S_IFMT)) {
 619                 return 'drwxr-xr-x';
 620         } elsif (S_ISLNK($mode)) {
 621                 return 'lrwxrwxrwx';
 622         } elsif (S_ISREG($mode)) {
 623                 # git cares only about the executable bit
 624                 if ($mode & S_IXUSR) {
 625                         return '-rwxr-xr-x';
 626                 } else {
 627                         return '-rw-r--r--';
 628                 };
 629         } else {
 630                 return '----------';
 631         }
 632 }
 633
 634 # convert file mode in octal to file type string
 635 sub file_type {
 636         my $mode = shift;
 637
 638         if ($mode !~ m/^[0-7]+$/) {
 639                 return $mode;
 640         } else {
 641                 $mode = oct $mode;
 642         }
 643
 644         if (S_ISDIR($mode & S_IFMT)) {
 645                 return "directory";
 646         } elsif (S_ISLNK($mode)) {
 647                 return "symlink";
 648         } elsif (S_ISREG($mode)) {
 649                 return "file";
 650         } else {
 651                 return "unknown";
 652         }
 653 }
 654
 655 ## ----------------------------------------------------------------------
 656 ## functions returning short HTML fragments, or transforming HTML fragments
 657 ## which don't beling to other sections
 658
 659 # format line of commit message or tag comment
 660 sub format_log_line_html {
 661         my $line = shift;
 662
 663         $line = esc_html($line);
 664         $line =~ s/ /&nbsp;/g;
 665         if ($line =~ m/([0-9a-fA-F]{40})/) {
 666                 my $hash_text = $1;
 667                 if (git_get_type($hash_text) eq "commit") {
 668                         my $link =
 669                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 670                                         -class => "text"}, $hash_text);
 671                         $line =~ s/$hash_text/$link/;
 672                 }
 673         }
 674         return $line;
 675 }
 676
 677 # format marker of refs pointing to given object
 678 sub format_ref_marker {
 679         my ($refs, $id) = @_;
 680         my $markers = '';
 681
 682         if (defined $refs->{$id}) {
 683                 foreach my $ref (@{$refs->{$id}}) {
 684                         my ($type, $name) = qw();
 685                         # e.g. tags/v2.6.11 or heads/next
 686                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 687                                 $type = $1;
 688                                 $name = $2;
 689                         } else {
 690                                 $type = "ref";
 691                                 $name = $ref;
 692                         }
 693
 694                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 695                 }
 696         }
 697
 698         if ($markers) {
 699                 return ' <span class="refs">'. $markers . '</span>';
 700         } else {
 701                 return "";
 702         }
 703 }
 704
 705 # format, perhaps shortened and with markers, title line
 706 sub format_subject_html {
 707         my ($long, $short, $href, $extra) = @_;
 708         $extra = '' unless defined($extra);
 709
 710         if (length($short) < length($long)) {
 711                 return $cgi->a({-href => $href, -class => "list subject",
 712                                 -title => decode("utf8", $long, Encode::FB_DEFAULT)},
 713                        esc_html($short) . $extra);
 714         } else {
 715                 return $cgi->a({-href => $href, -class => "list subject"},
 716                        esc_html($long)  . $extra);
 717         }
 718 }
 719
 720 sub format_diff_line {
 721         my $line = shift;
 722         my $char = substr($line, 0, 1);
 723         my $diff_class = "";
 724
 725         chomp $line;
 726
 727         if ($char eq '+') {
 728                 $diff_class = " add";
 729         } elsif ($char eq "-") {
 730                 $diff_class = " rem";
 731         } elsif ($char eq "@") {
 732                 $diff_class = " chunk_header";
 733         } elsif ($char eq "\\") {
 734                 $diff_class = " incomplete";
 735         }
 736         $line = untabify($line);
 737         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 738 }
 739
 740 ## ----------------------------------------------------------------------
 741 ## git utility subroutines, invoking git commands
 742
 743 # returns path to the core git executable and the --git-dir parameter as list
 744 sub git_cmd {
 745         return $GIT, '--git-dir='.$git_dir;
 746 }
 747
 748 # returns path to the core git executable and the --git-dir parameter as string
 749 sub git_cmd_str {
 750         return join(' ', git_cmd());
 751 }
 752
 753 # get HEAD ref of given project as hash
 754 sub git_get_head_hash {
 755         my $project = shift;
 756         my $o_git_dir = $git_dir;
 757         my $retval = undef;
 758         $git_dir = "$projectroot/$project";
 759         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 760                 my $head = <$fd>;
 761                 close $fd;
 762                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 763                         $retval = $1;
 764                 }
 765         }
 766         if (defined $o_git_dir) {
 767                 $git_dir = $o_git_dir;
 768         }
 769         return $retval;
 770 }
 771
 772 # get type of given object
 773 sub git_get_type {
 774         my $hash = shift;
 775
 776         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 777         my $type = <$fd>;
 778         close $fd or return;
 779         chomp $type;
 780         return $type;
 781 }
 782
 783 sub git_get_project_config {
 784         my ($key, $type) = @_;
 785
 786         return unless ($key);
 787         $key =~ s/^gitweb\.//;
 788         return if ($key =~ m/\W/);
 789
 790         my @x = (git_cmd(), 'repo-config');
 791         if (defined $type) { push @x, $type; }
 792         push @x, "--get";
 793         push @x, "gitweb.$key";
 794         my $val = qx(@x);
 795         chomp $val;
 796         return ($val);
 797 }
 798
 799 # get hash of given path at given ref
 800 sub git_get_hash_by_path {
 801         my $base = shift;
 802         my $path = shift || return undef;
 803         my $type = shift;
 804
 805         $path =~ s,/+$,,;
 806
 807         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 808                 or die_error(undef, "Open git-ls-tree failed");
 809         my $line = <$fd>;
 810         close $fd or return undef;
 811
 812         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 813         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 814         if (defined $type && $type ne $2) {
 815                 # type doesn't match
 816                 return undef;
 817         }
 818         return $3;
 819 }
 820
 821 ## ......................................................................
 822 ## git utility functions, directly accessing git repository
 823
 824 sub git_get_project_description {
 825         my $path = shift;
 826
 827         open my $fd, "$projectroot/$path/description" or return undef;
 828         my $descr = <$fd>;
 829         close $fd;
 830         chomp $descr;
 831         return $descr;
 832 }
 833
 834 sub git_get_project_url_list {
 835         my $path = shift;
 836
 837         open my $fd, "$projectroot/$path/cloneurl" or return;
 838         my @git_project_url_list = map { chomp; $_ } <$fd>;
 839         close $fd;
 840
 841         return wantarray ? @git_project_url_list : \@git_project_url_list;
 842 }
 843
 844 sub git_get_projects_list {
 845         my @list;
 846
 847         if (-d $projects_list) {
 848                 # search in directory
 849                 my $dir = $projects_list;
 850                 my $pfxlen = length("$dir");
 851
 852                 File::Find::find({
 853                         follow_fast => 1, # follow symbolic links
 854                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 855                         wanted => sub {
 856                                 # skip project-list toplevel, if we get it.
 857                                 return if (m!^[/.]$!);
 858                                 # only directories can be git repositories
 859                                 return unless (-d $_);
 860
 861                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 862                                 # we check related file in $projectroot
 863                                 if (check_export_ok("$projectroot/$subdir")) {
 864                                         push @list, { path => $subdir };
 865                                         $File::Find::prune = 1;
 866                                 }
 867                         },
 868                 }, "$dir");
 869
 870         } elsif (-f $projects_list) {
 871                 # read from file(url-encoded):
 872                 # 'git%2Fgit.git Linus+Torvalds'
 873                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 874                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 875                 open my ($fd), $projects_list or return;
 876                 while (my $line = <$fd>) {
 877                         chomp $line;
 878                         my ($path, $owner) = split ' ', $line;
 879                         $path = unescape($path);
 880                         $owner = unescape($owner);
 881                         if (!defined $path) {
 882                                 next;
 883                         }
 884                         if (check_export_ok("$projectroot/$path")) {
 885                                 my $pr = {
 886                                         path => $path,
 887                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 888                                 };
 889                                 push @list, $pr
 890                         }
 891                 }
 892                 close $fd;
 893         }
 894         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 895         return @list;
 896 }
 897
 898 sub git_get_project_owner {
 899         my $project = shift;
 900         my $owner;
 901
 902         return undef unless $project;
 903
 904         # read from file (url-encoded):
 905         # 'git%2Fgit.git Linus+Torvalds'
 906         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 907         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 908         if (-f $projects_list) {
 909                 open (my $fd , $projects_list);
 910                 while (my $line = <$fd>) {
 911                         chomp $line;
 912                         my ($pr, $ow) = split ' ', $line;
 913                         $pr = unescape($pr);
 914                         $ow = unescape($ow);
 915                         if ($pr eq $project) {
 916                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 917                                 last;
 918                         }
 919                 }
 920                 close $fd;
 921         }
 922         if (!defined $owner) {
 923                 $owner = get_file_owner("$projectroot/$project");
 924         }
 925
 926         return $owner;
 927 }
 928
 929 sub git_get_references {
 930         my $type = shift || "";
 931         my %refs;
 932         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 933         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 934         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
 935                 or return;
 936
 937         while (my $line = <$fd>) {
 938                 chomp $line;
 939                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 940                         if (defined $refs{$1}) {
 941                                 push @{$refs{$1}}, $2;
 942                         } else {
 943                                 $refs{$1} = [ $2 ];
 944                         }
 945                 }
 946         }
 947         close $fd or return;
 948         return \%refs;
 949 }
 950
 951 sub git_get_rev_name_tags {
 952         my $hash = shift || return undef;
 953
 954         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 955                 or return;
 956         my $name_rev = <$fd>;
 957         close $fd;
 958
 959         if ($name_rev =~ m|^$hash tags/(.*)$|) {
 960                 return $1;
 961         } else {
 962                 # catches also '$hash undefined' output
 963                 return undef;
 964         }
 965 }
 966
 967 ## ----------------------------------------------------------------------
 968 ## parse to hash functions
 969
 970 sub parse_date {
 971         my $epoch = shift;
 972         my $tz = shift || "-0000";
 973
 974         my %date;
 975         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 976         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 977         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 978         $date{'hour'} = $hour;
 979         $date{'minute'} = $min;
 980         $date{'mday'} = $mday;
 981         $date{'day'} = $days[$wday];
 982         $date{'month'} = $months[$mon];
 983         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 984                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 985         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 986                              $mday, $months[$mon], $hour ,$min;
 987
 988         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 989         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 990         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 991         $date{'hour_local'} = $hour;
 992         $date{'minute_local'} = $min;
 993         $date{'tz_local'} = $tz;
 994         return %date;
 995 }
 996
 997 sub parse_tag {
 998         my $tag_id = shift;
 999         my %tag;
1000         my @comment;
1001
1002         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1003         $tag{'id'} = $tag_id;
1004         while (my $line = <$fd>) {
1005                 chomp $line;
1006                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1007                         $tag{'object'} = $1;
1008                 } elsif ($line =~ m/^type (.+)$/) {
1009                         $tag{'type'} = $1;
1010                 } elsif ($line =~ m/^tag (.+)$/) {
1011                         $tag{'name'} = $1;
1012                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1013                         $tag{'author'} = $1;
1014                         $tag{'epoch'} = $2;
1015                         $tag{'tz'} = $3;
1016                 } elsif ($line =~ m/--BEGIN/) {
1017                         push @comment, $line;
1018                         last;
1019                 } elsif ($line eq "") {
1020                         last;
1021                 }
1022         }
1023         push @comment, <$fd>;
1024         $tag{'comment'} = \@comment;
1025         close $fd or return;
1026         if (!defined $tag{'name'}) {
1027                 return
1028         };
1029         return %tag
1030 }
1031
1032 sub parse_commit {
1033         my $commit_id = shift;
1034         my $commit_text = shift;
1035
1036         my @commit_lines;
1037         my %co;
1038
1039         if (defined $commit_text) {
1040                 @commit_lines = @$commit_text;
1041         } else {
1042                 $/ = "\0";
1043                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
1044                         or return;
1045                 @commit_lines = split '\n', <$fd>;
1046                 close $fd or return;
1047                 $/ = "\n";
1048                 pop @commit_lines;
1049         }
1050         my $header = shift @commit_lines;
1051         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1052                 return;
1053         }
1054         ($co{'id'}, my @parents) = split ' ', $header;
1055         $co{'parents'} = \@parents;
1056         $co{'parent'} = $parents[0];
1057         while (my $line = shift @commit_lines) {
1058                 last if $line eq "\n";
1059                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1060                         $co{'tree'} = $1;
1061                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1062                         $co{'author'} = $1;
1063                         $co{'author_epoch'} = $2;
1064                         $co{'author_tz'} = $3;
1065                         if ($co{'author'} =~ m/^([^<]+) </) {
1066                                 $co{'author_name'} = $1;
1067                         } else {
1068                                 $co{'author_name'} = $co{'author'};
1069                         }
1070                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1071                         $co{'committer'} = $1;
1072                         $co{'committer_epoch'} = $2;
1073                         $co{'committer_tz'} = $3;
1074                         $co{'committer_name'} = $co{'committer'};
1075                         $co{'committer_name'} =~ s/ <.*//;
1076                 }
1077         }
1078         if (!defined $co{'tree'}) {
1079                 return;
1080         };
1081
1082         foreach my $title (@commit_lines) {
1083                 $title =~ s/^    //;
1084                 if ($title ne "") {
1085                         $co{'title'} = chop_str($title, 80, 5);
1086                         # remove leading stuff of merges to make the interesting part visible
1087                         if (length($title) > 50) {
1088                                 $title =~ s/^Automatic //;
1089                                 $title =~ s/^merge (of|with) /Merge ... /i;
1090                                 if (length($title) > 50) {
1091                                         $title =~ s/(http|rsync):\/\///;
1092                                 }
1093                                 if (length($title) > 50) {
1094                                         $title =~ s/(master|www|rsync)\.//;
1095                                 }
1096                                 if (length($title) > 50) {
1097                                         $title =~ s/kernel.org:?//;
1098                                 }
1099                                 if (length($title) > 50) {
1100                                         $title =~ s/\/pub\/scm//;
1101                                 }
1102                         }
1103                         $co{'title_short'} = chop_str($title, 50, 5);
1104                         last;
1105                 }
1106         }
1107         # remove added spaces
1108         foreach my $line (@commit_lines) {
1109                 $line =~ s/^    //;
1110         }
1111         $co{'comment'} = \@commit_lines;
1112
1113         my $age = time - $co{'committer_epoch'};
1114         $co{'age'} = $age;
1115         $co{'age_string'} = age_string($age);
1116         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1117         if ($age > 60*60*24*7*2) {
1118                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1119                 $co{'age_string_age'} = $co{'age_string'};
1120         } else {
1121                 $co{'age_string_date'} = $co{'age_string'};
1122                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1123         }
1124         return %co;
1125 }
1126
1127 # parse ref from ref_file, given by ref_id, with given type
1128 sub parse_ref {
1129         my $ref_file = shift;
1130         my $ref_id = shift;
1131         my $type = shift || git_get_type($ref_id);
1132         my %ref_item;
1133
1134         $ref_item{'type'} = $type;
1135         $ref_item{'id'} = $ref_id;
1136         $ref_item{'epoch'} = 0;
1137         $ref_item{'age'} = "unknown";
1138         if ($type eq "tag") {
1139                 my %tag = parse_tag($ref_id);
1140                 $ref_item{'comment'} = $tag{'comment'};
1141                 if ($tag{'type'} eq "commit") {
1142                         my %co = parse_commit($tag{'object'});
1143                         $ref_item{'epoch'} = $co{'committer_epoch'};
1144                         $ref_item{'age'} = $co{'age_string'};
1145                 } elsif (defined($tag{'epoch'})) {
1146                         my $age = time - $tag{'epoch'};
1147                         $ref_item{'epoch'} = $tag{'epoch'};
1148                         $ref_item{'age'} = age_string($age);
1149                 }
1150                 $ref_item{'reftype'} = $tag{'type'};
1151                 $ref_item{'name'} = $tag{'name'};
1152                 $ref_item{'refid'} = $tag{'object'};
1153         } elsif ($type eq "commit"){
1154                 my %co = parse_commit($ref_id);
1155                 $ref_item{'reftype'} = "commit";
1156                 $ref_item{'name'} = $ref_file;
1157                 $ref_item{'title'} = $co{'title'};
1158                 $ref_item{'refid'} = $ref_id;
1159                 $ref_item{'epoch'} = $co{'committer_epoch'};
1160                 $ref_item{'age'} = $co{'age_string'};
1161         } else {
1162                 $ref_item{'reftype'} = $type;
1163                 $ref_item{'name'} = $ref_file;
1164                 $ref_item{'refid'} = $ref_id;
1165         }
1166
1167         return %ref_item;
1168 }
1169
1170 # parse line of git-diff-tree "raw" output
1171 sub parse_difftree_raw_line {
1172         my $line = shift;
1173         my %res;
1174
1175         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1176         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1177         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1178                 $res{'from_mode'} = $1;
1179                 $res{'to_mode'} = $2;
1180                 $res{'from_id'} = $3;
1181                 $res{'to_id'} = $4;
1182                 $res{'status'} = $5;
1183                 $res{'similarity'} = $6;
1184                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1185                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1186                 } else {
1187                         $res{'file'} = unquote($7);
1188                 }
1189         }
1190         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1191         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1192                 $res{'commit'} = $1;
1193         }
1194
1195         return wantarray ? %res : \%res;
1196 }
1197
1198 # parse line of git-ls-tree output
1199 sub parse_ls_tree_line ($;%) {
1200         my $line = shift;
1201         my %opts = @_;
1202         my %res;
1203
1204         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1205         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1206
1207         $res{'mode'} = $1;
1208         $res{'type'} = $2;
1209         $res{'hash'} = $3;
1210         if ($opts{'-z'}) {
1211                 $res{'name'} = $4;
1212         } else {
1213                 $res{'name'} = unquote($4);
1214         }
1215
1216         return wantarray ? %res : \%res;
1217 }
1218
1219 ## ......................................................................
1220 ## parse to array of hashes functions
1221
1222 sub git_get_refs_list {
1223         my $type = shift || "";
1224         my %refs;
1225         my @reflist;
1226
1227         my @refs;
1228         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1229                 or return;
1230         while (my $line = <$fd>) {
1231                 chomp $line;
1232                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?([^\^]+))(\^\{\})?$/) {
1233                         if (defined $refs{$1}) {
1234                                 push @{$refs{$1}}, $2;
1235                         } else {
1236                                 $refs{$1} = [ $2 ];
1237                         }
1238
1239                         if (! $4) { # unpeeled, direct reference
1240                                 push @refs, { hash => $1, name => $3 }; # without type
1241                         } elsif ($3 eq $refs[-1]{'name'}) {
1242                                 # most likely a tag is followed by its peeled
1243                                 # (deref) one, and when that happens we know the
1244                                 # previous one was of type 'tag'.
1245                                 $refs[-1]{'type'} = "tag";
1246                         }
1247                 }
1248         }
1249         close $fd;
1250
1251         foreach my $ref (@refs) {
1252                 my $ref_file = $ref->{'name'};
1253                 my $ref_id   = $ref->{'hash'};
1254
1255                 my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1256                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1257
1258                 push @reflist, \%ref_item;
1259         }
1260         # sort refs by age
1261         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1262         return (\@reflist, \%refs);
1263 }
1264
1265 ## ----------------------------------------------------------------------
1266 ## filesystem-related functions
1267
1268 sub get_file_owner {
1269         my $path = shift;
1270
1271         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1272         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1273         if (!defined $gcos) {
1274                 return undef;
1275         }
1276         my $owner = $gcos;
1277         $owner =~ s/[,;].*$//;
1278         return decode("utf8", $owner, Encode::FB_DEFAULT);
1279 }
1280
1281 ## ......................................................................
1282 ## mimetype related functions
1283
1284 sub mimetype_guess_file {
1285         my $filename = shift;
1286         my $mimemap = shift;
1287         -r $mimemap or return undef;
1288
1289         my %mimemap;
1290         open(MIME, $mimemap) or return undef;
1291         while (<MIME>) {
1292                 next if m/^#/; # skip comments
1293                 my ($mime, $exts) = split(/\t+/);
1294                 if (defined $exts) {
1295                         my @exts = split(/\s+/, $exts);
1296                         foreach my $ext (@exts) {
1297                                 $mimemap{$ext} = $mime;
1298                         }
1299                 }
1300         }
1301         close(MIME);
1302
1303         $filename =~ /\.([^.]*)$/;
1304         return $mimemap{$1};
1305 }
1306
1307 sub mimetype_guess {
1308         my $filename = shift;
1309         my $mime;
1310         $filename =~ /\./ or return undef;
1311
1312         if ($mimetypes_file) {
1313                 my $file = $mimetypes_file;
1314                 if ($file !~ m!^/!) { # if it is relative path
1315                         # it is relative to project
1316                         $file = "$projectroot/$project/$file";
1317                 }
1318                 $mime = mimetype_guess_file($filename, $file);
1319         }
1320         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1321         return $mime;
1322 }
1323
1324 sub blob_mimetype {
1325         my $fd = shift;
1326         my $filename = shift;
1327
1328         if ($filename) {
1329                 my $mime = mimetype_guess($filename);
1330                 $mime and return $mime;
1331         }
1332
1333         # just in case
1334         return $default_blob_plain_mimetype unless $fd;
1335
1336         if (-T $fd) {
1337                 return 'text/plain' .
1338                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1339         } elsif (! $filename) {
1340                 return 'application/octet-stream';
1341         } elsif ($filename =~ m/\.png$/i) {
1342                 return 'image/png';
1343         } elsif ($filename =~ m/\.gif$/i) {
1344                 return 'image/gif';
1345         } elsif ($filename =~ m/\.jpe?g$/i) {
1346                 return 'image/jpeg';
1347         } else {
1348                 return 'application/octet-stream';
1349         }
1350 }
1351
1352 ## ======================================================================
1353 ## functions printing HTML: header, footer, error page
1354
1355 sub git_header_html {
1356         my $status = shift || "200 OK";
1357         my $expires = shift;
1358
1359         my $title = "$site_name git";
1360         if (defined $project) {
1361                 $title .= " - $project";
1362                 if (defined $action) {
1363                         $title .= "/$action";
1364                         if (defined $file_name) {
1365                                 $title .= " - " . esc_html($file_name);
1366                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1367                                         $title .= "/";
1368                                 }
1369                         }
1370                 }
1371         }
1372         my $content_type;
1373         # require explicit support from the UA if we are to send the page as
1374         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1375         # we have to do this because MSIE sometimes globs '*/*', pretending to
1376         # support xhtml+xml but choking when it gets what it asked for.
1377         if (defined $cgi->http('HTTP_ACCEPT') &&
1378             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1379             $cgi->Accept('application/xhtml+xml') != 0) {
1380                 $content_type = 'application/xhtml+xml';
1381         } else {
1382                 $content_type = 'text/html';
1383         }
1384         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1385                            -status=> $status, -expires => $expires);
1386         print <<EOF;
1387 <?xml version="1.0" encoding="utf-8"?>
1388 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1389 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1390 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1391 <!-- git core binaries version $git_version -->
1392 <head>
1393 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1394 <meta name="generator" content="gitweb/$version git/$git_version"/>
1395 <meta name="robots" content="index, nofollow"/>
1396 <title>$title</title>
1397 EOF
1398 # print out each stylesheet that exist
1399         if (defined $stylesheet) {
1400 #provides backwards capability for those people who define style sheet in a config file
1401                 print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1402         } else {
1403                 foreach my $stylesheet (@stylesheets) {
1404                         next unless $stylesheet;
1405                         print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1406                 }
1407         }
1408         if (defined $project) {
1409                 printf('<link rel="alternate" title="%s log" '.
1410                        'href="%s" type="application/rss+xml"/>'."\n",
1411                        esc_param($project), href(action=>"rss"));
1412         } else {
1413                 printf('<link rel="alternate" title="%s projects list" '.
1414                        'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1415                        $site_name, href(project=>undef, action=>"project_index"));
1416                 printf('<link rel="alternate" title="%s projects logs" '.
1417                        'href="%s" type="text/x-opml"/>'."\n",
1418                        $site_name, href(project=>undef, action=>"opml"));
1419         }
1420         if (defined $favicon) {
1421                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1422         }
1423
1424         print "</head>\n" .
1425               "<body>\n";
1426
1427         if (-f $site_header) {
1428                 open (my $fd, $site_header);
1429                 print <$fd>;
1430                 close $fd;
1431         }
1432
1433         print "<div class=\"page_header\">\n" .
1434               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1435               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1436               "</a>\n";
1437         print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1438         if (defined $project) {
1439                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1440                 if (defined $action) {
1441                         print " / $action";
1442                 }
1443                 print "\n";
1444                 if (!defined $searchtext) {
1445                         $searchtext = "";
1446                 }
1447                 my $search_hash;
1448                 if (defined $hash_base) {
1449                         $search_hash = $hash_base;
1450                 } elsif (defined $hash) {
1451                         $search_hash = $hash;
1452                 } else {
1453                         $search_hash = "HEAD";
1454                 }
1455                 $cgi->param("a", "search");
1456                 $cgi->param("h", $search_hash);
1457                 print $cgi->startform(-method => "get", -action => $my_uri) .
1458                       "<div class=\"search\">\n" .
1459                       $cgi->hidden(-name => "p") . "\n" .
1460                       $cgi->hidden(-name => "a") . "\n" .
1461                       $cgi->hidden(-name => "h") . "\n" .
1462                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1463                       "</div>" .
1464                       $cgi->end_form() . "\n";
1465         }
1466         print "</div>\n";
1467 }
1468
1469 sub git_footer_html {
1470         print "<div class=\"page_footer\">\n";
1471         if (defined $project) {
1472                 my $descr = git_get_project_description($project);
1473                 if (defined $descr) {
1474                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1475                 }
1476                 print $cgi->a({-href => href(action=>"rss"),
1477                               -class => "rss_logo"}, "RSS") . "\n";
1478         } else {
1479                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1480                               -class => "rss_logo"}, "OPML") . " ";
1481                 print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1482                               -class => "rss_logo"}, "TXT") . "\n";
1483         }
1484         print "</div>\n" ;
1485
1486         if (-f $site_footer) {
1487                 open (my $fd, $site_footer);
1488                 print <$fd>;
1489                 close $fd;
1490         }
1491
1492         print "</body>\n" .
1493               "</html>";
1494 }
1495
1496 sub die_error {
1497         my $status = shift || "403 Forbidden";
1498         my $error = shift || "Malformed query, file missing or permission denied";
1499
1500         git_header_html($status);
1501         print <<EOF;
1502 <div class="page_body">
1503 <br /><br />
1504 $status - $error
1505 <br />
1506 </div>
1507 EOF
1508         git_footer_html();
1509         exit;
1510 }
1511
1512 ## ----------------------------------------------------------------------
1513 ## functions printing or outputting HTML: navigation
1514
1515 sub git_print_page_nav {
1516         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1517         $extra = '' if !defined $extra; # pager or formats
1518
1519         my @navs = qw(summary shortlog log commit commitdiff tree);
1520         if ($suppress) {
1521                 @navs = grep { $_ ne $suppress } @navs;
1522         }
1523
1524         my %arg = map { $_ => {action=>$_} } @navs;
1525         if (defined $head) {
1526                 for (qw(commit commitdiff)) {
1527                         $arg{$_}{hash} = $head;
1528                 }
1529                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1530                         for (qw(shortlog log)) {
1531                                 $arg{$_}{hash} = $head;
1532                         }
1533                 }
1534         }
1535         $arg{tree}{hash} = $treehead if defined $treehead;
1536         $arg{tree}{hash_base} = $treebase if defined $treebase;
1537
1538         print "<div class=\"page_nav\">\n" .
1539                 (join " | ",
1540                  map { $_ eq $current ?
1541                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1542                  } @navs);
1543         print "<br/>\n$extra<br/>\n" .
1544               "</div>\n";
1545 }
1546
1547 sub format_paging_nav {
1548         my ($action, $hash, $head, $page, $nrevs) = @_;
1549         my $paging_nav;
1550
1551
1552         if ($hash ne $head || $page) {
1553                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1554         } else {
1555                 $paging_nav .= "HEAD";
1556         }
1557
1558         if ($page > 0) {
1559                 $paging_nav .= " &sdot; " .
1560                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1561                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1562         } else {
1563                 $paging_nav .= " &sdot; prev";
1564         }
1565
1566         if ($nrevs >= (100 * ($page+1)-1)) {
1567                 $paging_nav .= " &sdot; " .
1568                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1569                                  -accesskey => "n", -title => "Alt-n"}, "next");
1570         } else {
1571                 $paging_nav .= " &sdot; next";
1572         }
1573
1574         return $paging_nav;
1575 }
1576
1577 ## ......................................................................
1578 ## functions printing or outputting HTML: div
1579
1580 sub git_print_header_div {
1581         my ($action, $title, $hash, $hash_base) = @_;
1582         my %args = ();
1583
1584         $args{action} = $action;
1585         $args{hash} = $hash if $hash;
1586         $args{hash_base} = $hash_base if $hash_base;
1587
1588         print "<div class=\"header\">\n" .
1589               $cgi->a({-href => href(%args), -class => "title"},
1590               $title ? $title : $action) .
1591               "\n</div>\n";
1592 }
1593
1594 #sub git_print_authorship (\%) {
1595 sub git_print_authorship {
1596         my $co = shift;
1597
1598         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1599         print "<div class=\"author_date\">" .
1600               esc_html($co->{'author_name'}) .
1601               " [$ad{'rfc2822'}";
1602         if ($ad{'hour_local'} < 6) {
1603                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1604                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1605         } else {
1606                 printf(" (%02d:%02d %s)",
1607                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1608         }
1609         print "]</div>\n";
1610 }
1611
1612 sub git_print_page_path {
1613         my $name = shift;
1614         my $type = shift;
1615         my $hb = shift;
1616
1617         if (!defined $name) {
1618                 print "<div class=\"page_path\">/</div>\n";
1619         } else {
1620                 my @dirname = split '/', $name;
1621                 my $basename = pop @dirname;
1622                 my $fullname = '';
1623
1624                 print "<div class=\"page_path\">";
1625                 print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1626                               -title => 'tree root'}, "[$project]");
1627                 print " / ";
1628                 foreach my $dir (@dirname) {
1629                         $fullname .= ($fullname ? '/' : '') . $dir;
1630                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1631                                                      hash_base=>$hb),
1632                                       -title => $fullname}, esc_html($dir));
1633                         print " / ";
1634                 }
1635                 if (defined $type && $type eq 'blob') {
1636                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1637                                                      hash_base=>$hb),
1638                                       -title => $name}, esc_html($basename));
1639                 } elsif (defined $type && $type eq 'tree') {
1640                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1641                                                      hash_base=>$hb),
1642                                       -title => $name}, esc_html($basename));
1643                 } else {
1644                         print esc_html($basename);
1645                 }
1646                 print "<br/></div>\n";
1647         }
1648 }
1649
1650 # sub git_print_log (\@;%) {
1651 sub git_print_log ($;%) {
1652         my $log = shift;
1653         my %opts = @_;
1654
1655         if ($opts{'-remove_title'}) {
1656                 # remove title, i.e. first line of log
1657                 shift @$log;
1658         }
1659         # remove leading empty lines
1660         while (defined $log->[0] && $log->[0] eq "") {
1661                 shift @$log;
1662         }
1663
1664         # print log
1665         my $signoff = 0;
1666         my $empty = 0;
1667         foreach my $line (@$log) {
1668                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1669                         $signoff = 1;
1670                         $empty = 0;
1671                         if (! $opts{'-remove_signoff'}) {
1672                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1673                                 next;
1674                         } else {
1675                                 # remove signoff lines
1676                                 next;
1677                         }
1678                 } else {
1679                         $signoff = 0;
1680                 }
1681
1682                 # print only one empty line
1683                 # do not print empty line after signoff
1684                 if ($line eq "") {
1685                         next if ($empty || $signoff);
1686                         $empty = 1;
1687                 } else {
1688                         $empty = 0;
1689                 }
1690
1691                 print format_log_line_html($line) . "<br/>\n";
1692         }
1693
1694         if ($opts{'-final_empty_line'}) {
1695                 # end with single empty line
1696                 print "<br/>\n" unless $empty;
1697         }
1698 }
1699
1700 sub git_print_simplified_log {
1701         my $log = shift;
1702         my $remove_title = shift;
1703
1704         git_print_log($log,
1705                 -final_empty_line=> 1,
1706                 -remove_title => $remove_title);
1707 }
1708
1709 # print tree entry (row of git_tree), but without encompassing <tr> element
1710 sub git_print_tree_entry {
1711         my ($t, $basedir, $hash_base, $have_blame) = @_;
1712
1713         my %base_key = ();
1714         $base_key{hash_base} = $hash_base if defined $hash_base;
1715
1716         # The format of a table row is: mode list link.  Where mode is
1717         # the mode of the entry, list is the name of the entry, an href,
1718         # and link is the action links of the entry.
1719
1720         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1721         if ($t->{'type'} eq "blob") {
1722                 print "<td class=\"list\">" .
1723                         $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1724                                                file_name=>"$basedir$t->{'name'}", %base_key),
1725                                  -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1726                 print "<td class=\"link\">";
1727                 if ($have_blame) {
1728                         print $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1729                                                      file_name=>"$basedir$t->{'name'}", %base_key)},
1730                                       "blame");
1731                 }
1732                 if (defined $hash_base) {
1733                         if ($have_blame) {
1734                                 print " | ";
1735                         }
1736                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1737                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1738                                       "history");
1739                 }
1740                 print " | " .
1741                         $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1742                                                file_name=>"$basedir$t->{'name'}")},
1743                                 "raw");
1744                 print "</td>\n";
1745
1746         } elsif ($t->{'type'} eq "tree") {
1747                 print "<td class=\"list\">";
1748                 print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1749                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1750                               esc_html($t->{'name'}));
1751                 print "</td>\n";
1752                 print "<td class=\"link\">";
1753                 if (defined $hash_base) {
1754                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1755                                                      file_name=>"$basedir$t->{'name'}")},
1756                                       "history");
1757                 }
1758                 print "</td>\n";
1759         }
1760 }
1761
1762 ## ......................................................................
1763 ## functions printing large fragments of HTML
1764
1765 sub git_difftree_body {
1766         my ($difftree, $hash, $parent) = @_;
1767
1768         print "<div class=\"list_head\">\n";
1769         if ($#{$difftree} > 10) {
1770                 print(($#{$difftree} + 1) . " files changed:\n");
1771         }
1772         print "</div>\n";
1773
1774         print "<table class=\"diff_tree\">\n";
1775         my $alternate = 1;
1776         my $patchno = 0;
1777         foreach my $line (@{$difftree}) {
1778                 my %diff = parse_difftree_raw_line($line);
1779
1780                 if ($alternate) {
1781                         print "<tr class=\"dark\">\n";
1782                 } else {
1783                         print "<tr class=\"light\">\n";
1784                 }
1785                 $alternate ^= 1;
1786
1787                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1788                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1789                 if ($diff{'to_mode'} ne ('0' x 6)) {
1790                         $to_mode_oct = oct $diff{'to_mode'};
1791                         if (S_ISREG($to_mode_oct)) { # only for regular file
1792                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1793                         }
1794                         $to_file_type = file_type($diff{'to_mode'});
1795                 }
1796                 if ($diff{'from_mode'} ne ('0' x 6)) {
1797                         $from_mode_oct = oct $diff{'from_mode'};
1798                         if (S_ISREG($to_mode_oct)) { # only for regular file
1799                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1800                         }
1801                         $from_file_type = file_type($diff{'from_mode'});
1802                 }
1803
1804                 if ($diff{'status'} eq "A") { # created
1805                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1806                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1807                         $mode_chng   .= "]</span>";
1808                         print "<td>";
1809                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1810                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1811                                        -class => "list"}, esc_html($diff{'file'}));
1812                         print "</td>\n";
1813                         print "<td>$mode_chng</td>\n";
1814                         print "<td class=\"link\">";
1815                         if ($action eq 'commitdiff') {
1816                                 # link to patch
1817                                 $patchno++;
1818                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1819                         }
1820                         print "</td>\n";
1821
1822                 } elsif ($diff{'status'} eq "D") { # deleted
1823                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1824                         print "<td>";
1825                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1826                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1827                                        -class => "list"}, esc_html($diff{'file'}));
1828                         print "</td>\n";
1829                         print "<td>$mode_chng</td>\n";
1830                         print "<td class=\"link\">";
1831                         if ($action eq 'commitdiff') {
1832                                 # link to patch
1833                                 $patchno++;
1834                                 print $cgi->a({-href => "#patch$patchno"}, "patch");
1835                                 print " | ";
1836                         }
1837                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1838                                                      file_name=>$diff{'file'})},
1839                                       "blame") . " | ";
1840                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1841                                                      file_name=>$diff{'file'})},
1842                                       "history");
1843                         print "</td>\n";
1844
1845                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1846                         my $mode_chnge = "";
1847                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1848                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1849                                 if ($from_file_type != $to_file_type) {
1850                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1851                                 }
1852                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1853                                         if ($from_mode_str && $to_mode_str) {
1854                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1855                                         } elsif ($to_mode_str) {
1856                                                 $mode_chnge .= " mode: $to_mode_str";
1857                                         }
1858                                 }
1859                                 $mode_chnge .= "]</span>\n";
1860                         }
1861                         print "<td>";
1862                         print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1863                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1864                                        -class => "list"}, esc_html($diff{'file'}));
1865                         print "</td>\n";
1866                         print "<td>$mode_chnge</td>\n";
1867                         print "<td class=\"link\">";
1868                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1869                                 if ($action eq 'commitdiff') {
1870                                         # link to patch
1871                                         $patchno++;
1872                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1873                                 } else {
1874                                         print $cgi->a({-href => href(action=>"blobdiff",
1875                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1876                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1877                                                                      file_name=>$diff{'file'})},
1878                                                       "diff");
1879                                 }
1880                                 print " | ";
1881                         }
1882                         print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
1883                                                      file_name=>$diff{'file'})},
1884                                       "blame") . " | ";
1885                         print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
1886                                                      file_name=>$diff{'file'})},
1887                                       "history");
1888                         print "</td>\n";
1889
1890                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1891                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1892                         my $nstatus = $status_name{$diff{'status'}};
1893                         my $mode_chng = "";
1894                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1895                                 # mode also for directories, so we cannot use $to_mode_str
1896                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1897                         }
1898                         print "<td>" .
1899                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1900                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1901                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1902                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1903                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1904                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1905                                       -class => "list"}, esc_html($diff{'from_file'})) .
1906                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1907                               "<td class=\"link\">";
1908                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1909                                 if ($action eq 'commitdiff') {
1910                                         # link to patch
1911                                         $patchno++;
1912                                         print $cgi->a({-href => "#patch$patchno"}, "patch");
1913                                 } else {
1914                                         print $cgi->a({-href => href(action=>"blobdiff",
1915                                                                      hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1916                                                                      hash_base=>$hash, hash_parent_base=>$parent,
1917                                                                      file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1918                                                       "diff");
1919                                 }
1920                                 print " | ";
1921                         }
1922                         print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1923                                                      file_name=>$diff{'from_file'})},
1924                                       "blame") . " | ";
1925                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1926                                                      file_name=>$diff{'from_file'})},
1927                                       "history");
1928                         print "</td>\n";
1929
1930                 } # we should not encounter Unmerged (U) or Unknown (X) status
1931                 print "</tr>\n";
1932         }
1933         print "</table>\n";
1934 }
1935
1936 sub git_patchset_body {
1937         my ($fd, $difftree, $hash, $hash_parent) = @_;
1938
1939         my $patch_idx = 0;
1940         my $in_header = 0;
1941         my $patch_found = 0;
1942         my $diffinfo;
1943
1944         print "<div class=\"patchset\">\n";
1945
1946         LINE:
1947         while (my $patch_line = <$fd>) {
1948                 chomp $patch_line;
1949
1950                 if ($patch_line =~ m/^diff /) { # "git diff" header
1951                         # beginning of patch (in patchset)
1952                         if ($patch_found) {
1953                                 # close previous patch
1954                                 print "</div>\n"; # class="patch"
1955                         } else {
1956                                 # first patch in patchset
1957                                 $patch_found = 1;
1958                         }
1959                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1960
1961                         if (ref($difftree->[$patch_idx]) eq "HASH") {
1962                                 $diffinfo = $difftree->[$patch_idx];
1963                         } else {
1964                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1965                         }
1966                         $patch_idx++;
1967
1968                         # for now, no extended header, hence we skip empty patches
1969                         # companion to  next LINE if $in_header;
1970                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1971                                 $in_header = 1;
1972                                 next LINE;
1973                         }
1974
1975                         if ($diffinfo->{'status'} eq "A") { # added
1976                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1977                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1978                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1979                                               $diffinfo->{'to_id'}) . "(new)" .
1980                                       "</div>\n"; # class="diff_info"
1981
1982                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
1983                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1984                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1985                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1986                                               $diffinfo->{'from_id'}) . "(deleted)" .
1987                                       "</div>\n"; # class="diff_info"
1988
1989                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
1990                                  $diffinfo->{'status'} eq "C" || # copied
1991                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1992                                 print "<div class=\"diff_info\">" .
1993                                       file_type($diffinfo->{'from_mode'}) . ":" .
1994                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1995                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1996                                               $diffinfo->{'from_id'}) .
1997                                       " -> " .
1998                                       file_type($diffinfo->{'to_mode'}) . ":" .
1999                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2000                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
2001                                               $diffinfo->{'to_id'});
2002                                 print "</div>\n"; # class="diff_info"
2003
2004                         } else { # modified, mode changed, ...
2005                                 print "<div class=\"diff_info\">" .
2006                                       file_type($diffinfo->{'from_mode'}) . ":" .
2007                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2008                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2009                                               $diffinfo->{'from_id'}) .
2010                                       " -> " .
2011                                       file_type($diffinfo->{'to_mode'}) . ":" .
2012                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2013                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2014                                               $diffinfo->{'to_id'});
2015                                 print "</div>\n"; # class="diff_info"
2016                         }
2017
2018                         #print "<div class=\"diff extended_header\">\n";
2019                         $in_header = 1;
2020                         next LINE;
2021                 } # start of patch in patchset
2022
2023
2024                 if ($in_header && $patch_line =~ m/^---/) {
2025                         #print "</div>\n"; # class="diff extended_header"
2026                         $in_header = 0;
2027
2028                         my $file = $diffinfo->{'from_file'};
2029                         $file  ||= $diffinfo->{'file'};
2030                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2031                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
2032                                         -class => "list"}, esc_html($file));
2033                         $patch_line =~ s|a/.*$|a/$file|g;
2034                         print "<div class=\"diff from_file\">$patch_line</div>\n";
2035
2036                         $patch_line = <$fd>;
2037                         chomp $patch_line;
2038
2039                         #$patch_line =~ m/^+++/;
2040                         $file    = $diffinfo->{'to_file'};
2041                         $file  ||= $diffinfo->{'file'};
2042                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2043                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
2044                                         -class => "list"}, esc_html($file));
2045                         $patch_line =~ s|b/.*|b/$file|g;
2046                         print "<div class=\"diff to_file\">$patch_line</div>\n";
2047
2048                         next LINE;
2049                 }
2050                 next LINE if $in_header;
2051
2052                 print format_diff_line($patch_line);
2053         }
2054         print "</div>\n" if $patch_found; # class="patch"
2055
2056         print "</div>\n"; # class="patchset"
2057 }
2058
2059 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2060
2061 sub git_shortlog_body {
2062         # uses global variable $project
2063         my ($revlist, $from, $to, $refs, $extra) = @_;
2064
2065         $from = 0 unless defined $from;
2066         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2067
2068         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2069         my $alternate = 1;
2070         for (my $i = $from; $i <= $to; $i++) {
2071                 my $commit = $revlist->[$i];
2072                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2073                 my $ref = format_ref_marker($refs, $commit);
2074                 my %co = parse_commit($commit);
2075                 if ($alternate) {
2076                         print "<tr class=\"dark\">\n";
2077                 } else {
2078                         print "<tr class=\"light\">\n";
2079                 }
2080                 $alternate ^= 1;
2081                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2082                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2083                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2084                       "<td>";
2085                 print format_subject_html($co{'title'}, $co{'title_short'},
2086                                           href(action=>"commit", hash=>$commit), $ref);
2087                 print "</td>\n" .
2088                       "<td class=\"link\">" .
2089                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2090                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") . " | " .
2091                       $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2092                 print "</td>\n" .
2093                       "</tr>\n";
2094         }
2095         if (defined $extra) {
2096                 print "<tr>\n" .
2097                       "<td colspan=\"4\">$extra</td>\n" .
2098                       "</tr>\n";
2099         }
2100         print "</table>\n";
2101 }
2102
2103 sub git_history_body {
2104         # Warning: assumes constant type (blob or tree) during history
2105         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2106
2107         $from = 0 unless defined $from;
2108         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2109
2110         print "<table class=\"history\" cellspacing=\"0\">\n";
2111         my $alternate = 1;
2112         for (my $i = $from; $i <= $to; $i++) {
2113                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2114                         next;
2115                 }
2116
2117                 my $commit = $1;
2118                 my %co = parse_commit($commit);
2119                 if (!%co) {
2120                         next;
2121                 }
2122
2123                 my $ref = format_ref_marker($refs, $commit);
2124
2125                 if ($alternate) {
2126                         print "<tr class=\"dark\">\n";
2127                 } else {
2128                         print "<tr class=\"light\">\n";
2129                 }
2130                 $alternate ^= 1;
2131                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2132                       # shortlog uses      chop_str($co{'author_name'}, 10)
2133                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2134                       "<td>";
2135                 # originally git_history used chop_str($co{'title'}, 50)
2136                 print format_subject_html($co{'title'}, $co{'title_short'},
2137                                           href(action=>"commit", hash=>$commit), $ref);
2138                 print "</td>\n" .
2139                       "<td class=\"link\">" .
2140                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2141                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2142
2143                 if ($ftype eq 'blob') {
2144                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2145                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2146                         if (defined $blob_current && defined $blob_parent &&
2147                                         $blob_current ne $blob_parent) {
2148                                 print " | " .
2149                                         $cgi->a({-href => href(action=>"blobdiff",
2150                                                                hash=>$blob_current, hash_parent=>$blob_parent,
2151                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
2152                                                                file_name=>$file_name)},
2153                                                 "diff to current");
2154                         }
2155                 }
2156                 print "</td>\n" .
2157                       "</tr>\n";
2158         }
2159         if (defined $extra) {
2160                 print "<tr>\n" .
2161                       "<td colspan=\"4\">$extra</td>\n" .
2162                       "</tr>\n";
2163         }
2164         print "</table>\n";
2165 }
2166
2167 sub git_tags_body {
2168         # uses global variable $project
2169         my ($taglist, $from, $to, $extra) = @_;
2170         $from = 0 unless defined $from;
2171         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2172
2173         print "<table class=\"tags\" cellspacing=\"0\">\n";
2174         my $alternate = 1;
2175         for (my $i = $from; $i <= $to; $i++) {
2176                 my $entry = $taglist->[$i];
2177                 my %tag = %$entry;
2178                 my $comment_lines = $tag{'comment'};
2179                 my $comment = shift @$comment_lines;
2180                 my $comment_short;
2181                 if (defined $comment) {
2182                         $comment_short = chop_str($comment, 30, 5);
2183                 }
2184                 if ($alternate) {
2185                         print "<tr class=\"dark\">\n";
2186                 } else {
2187                         print "<tr class=\"light\">\n";
2188                 }
2189                 $alternate ^= 1;
2190                 print "<td><i>$tag{'age'}</i></td>\n" .
2191                       "<td>" .
2192                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2193                                -class => "list name"}, esc_html($tag{'name'})) .
2194                       "</td>\n" .
2195                       "<td>";
2196                 if (defined $comment) {
2197                         print format_subject_html($comment, $comment_short,
2198                                                   href(action=>"tag", hash=>$tag{'id'}));
2199                 }
2200                 print "</td>\n" .
2201                       "<td class=\"selflink\">";
2202                 if ($tag{'type'} eq "tag") {
2203                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2204                 } else {
2205                         print "&nbsp;";
2206                 }
2207                 print "</td>\n" .
2208                       "<td class=\"link\">" . " | " .
2209                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2210                 if ($tag{'reftype'} eq "commit") {
2211                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2212                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2213                 } elsif ($tag{'reftype'} eq "blob") {
2214                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2215                 }
2216                 print "</td>\n" .
2217                       "</tr>";
2218         }
2219         if (defined $extra) {
2220                 print "<tr>\n" .
2221                       "<td colspan=\"5\">$extra</td>\n" .
2222                       "</tr>\n";
2223         }
2224         print "</table>\n";
2225 }
2226
2227 sub git_heads_body {
2228         # uses global variable $project
2229         my ($headlist, $head, $from, $to, $extra) = @_;
2230         $from = 0 unless defined $from;
2231         $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2232
2233         print "<table class=\"heads\" cellspacing=\"0\">\n";
2234         my $alternate = 1;
2235         for (my $i = $from; $i <= $to; $i++) {
2236                 my $entry = $headlist->[$i];
2237                 my %tag = %$entry;
2238                 my $curr = $tag{'id'} eq $head;
2239                 if ($alternate) {
2240                         print "<tr class=\"dark\">\n";
2241                 } else {
2242                         print "<tr class=\"light\">\n";
2243                 }
2244                 $alternate ^= 1;
2245                 print "<td><i>$tag{'age'}</i></td>\n" .
2246                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2247                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2248                                -class => "list name"},esc_html($tag{'name'})) .
2249                       "</td>\n" .
2250                       "<td class=\"link\">" .
2251                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2252                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") . " | " .
2253                       $cgi->a({-href => href(action=>"tree", hash=>$tag{'name'}, hash_base=>$tag{'name'})}, "tree") .
2254                       "</td>\n" .
2255                       "</tr>";
2256         }
2257         if (defined $extra) {
2258                 print "<tr>\n" .
2259                       "<td colspan=\"3\">$extra</td>\n" .
2260                       "</tr>\n";
2261         }
2262         print "</table>\n";
2263 }
2264
2265 ## ======================================================================
2266 ## ======================================================================
2267 ## actions
2268
2269 sub git_project_list {
2270         my $order = $cgi->param('o');
2271         if (defined $order && $order !~ m/project|descr|owner|age/) {
2272                 die_error(undef, "Unknown order parameter");
2273         }
2274
2275         my @list = git_get_projects_list();
2276         my @projects;
2277         if (!@list) {
2278                 die_error(undef, "No projects found");
2279         }
2280         foreach my $pr (@list) {
2281                 my $head = git_get_head_hash($pr->{'path'});
2282                 if (!defined $head) {
2283                         next;
2284                 }
2285                 $git_dir = "$projectroot/$pr->{'path'}";
2286                 my %co = parse_commit($head);
2287                 if (!%co) {
2288                         next;
2289                 }
2290                 $pr->{'commit'} = \%co;
2291                 if (!defined $pr->{'descr'}) {
2292                         my $descr = git_get_project_description($pr->{'path'}) || "";
2293                         $pr->{'descr'} = chop_str($descr, 25, 5);
2294                 }
2295                 if (!defined $pr->{'owner'}) {
2296                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2297                 }
2298                 push @projects, $pr;
2299         }
2300
2301         git_header_html();
2302         if (-f $home_text) {
2303                 print "<div class=\"index_include\">\n";
2304                 open (my $fd, $home_text);
2305                 print <$fd>;
2306                 close $fd;
2307                 print "</div>\n";
2308         }
2309         print "<table class=\"project_list\">\n" .
2310               "<tr>\n";
2311         $order ||= "project";
2312         if ($order eq "project") {
2313                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2314                 print "<th>Project</th>\n";
2315         } else {
2316                 print "<th>" .
2317                       $cgi->a({-href => href(project=>undef, order=>'project'),
2318                                -class => "header"}, "Project") .
2319                       "</th>\n";
2320         }
2321         if ($order eq "descr") {
2322                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2323                 print "<th>Description</th>\n";
2324         } else {
2325                 print "<th>" .
2326                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2327                                -class => "header"}, "Description") .
2328                       "</th>\n";
2329         }
2330         if ($order eq "owner") {
2331                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2332                 print "<th>Owner</th>\n";
2333         } else {
2334                 print "<th>" .
2335                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2336                                -class => "header"}, "Owner") .
2337                       "</th>\n";
2338         }
2339         if ($order eq "age") {
2340                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2341                 print "<th>Last Change</th>\n";
2342         } else {
2343                 print "<th>" .
2344                       $cgi->a({-href => href(project=>undef, order=>'age'),
2345                                -class => "header"}, "Last Change") .
2346                       "</th>\n";
2347         }
2348         print "<th></th>\n" .
2349               "</tr>\n";
2350         my $alternate = 1;
2351         foreach my $pr (@projects) {
2352                 if ($alternate) {
2353                         print "<tr class=\"dark\">\n";
2354                 } else {
2355                         print "<tr class=\"light\">\n";
2356                 }
2357                 $alternate ^= 1;
2358                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2359                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2360                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2361                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2362                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2363                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2364                       "<td class=\"link\">" .
2365                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2366                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2367                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2368                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2369                       "</td>\n" .
2370                       "</tr>\n";
2371         }
2372         print "</table>\n";
2373         git_footer_html();
2374 }
2375
2376 sub git_project_index {
2377         my @projects = git_get_projects_list();
2378
2379         print $cgi->header(
2380                 -type => 'text/plain',
2381                 -charset => 'utf-8',
2382                 -content_disposition => 'inline; filename="index.aux"');
2383
2384         foreach my $pr (@projects) {
2385                 if (!exists $pr->{'owner'}) {
2386                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2387                 }
2388
2389                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2390                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2391                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2392                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2393                 $path  =~ s/ /\+/g;
2394                 $owner =~ s/ /\+/g;
2395
2396                 print "$path $owner\n";
2397         }
2398 }
2399
2400 sub git_summary {
2401         my $descr = git_get_project_description($project) || "none";
2402         my $head = git_get_head_hash($project);
2403         my %co = parse_commit($head);
2404         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2405
2406         my $owner = git_get_project_owner($project);
2407
2408         my ($reflist, $refs) = git_get_refs_list();
2409
2410         my @taglist;
2411         my @headlist;
2412         foreach my $ref (@$reflist) {
2413                 if ($ref->{'name'} =~ s!^heads/!!) {
2414                         push @headlist, $ref;
2415                 } else {
2416                         $ref->{'name'} =~ s!^tags/!!;
2417                         push @taglist, $ref;
2418                 }
2419         }
2420
2421         git_header_html();
2422         git_print_page_nav('summary','', $head);
2423
2424         print "<div class=\"title\">&nbsp;</div>\n";
2425         print "<table cellspacing=\"0\">\n" .
2426               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2427               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2428               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2429         # use per project git URL list in $projectroot/$project/cloneurl
2430         # or make project git URL from git base URL and project name
2431         my $url_tag = "URL";
2432         my @url_list = git_get_project_url_list($project);
2433         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2434         foreach my $git_url (@url_list) {
2435                 next unless $git_url;
2436                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2437                 $url_tag = "";
2438         }
2439         print "</table>\n";
2440
2441         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2442                 git_get_head_hash($project)
2443                 or die_error(undef, "Open git-rev-list failed");
2444         my @revlist = map { chomp; $_ } <$fd>;
2445         close $fd;
2446         git_print_header_div('shortlog');
2447         git_shortlog_body(\@revlist, 0, 15, $refs,
2448                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2449
2450         if (@taglist) {
2451                 git_print_header_div('tags');
2452                 git_tags_body(\@taglist, 0, 15,
2453                               $cgi->a({-href => href(action=>"tags")}, "..."));
2454         }
2455
2456         if (@headlist) {
2457                 git_print_header_div('heads');
2458                 git_heads_body(\@headlist, $head, 0, 15,
2459                                $cgi->a({-href => href(action=>"heads")}, "..."));
2460         }
2461
2462         git_footer_html();
2463 }
2464
2465 sub git_tag {
2466         my $head = git_get_head_hash($project);
2467         git_header_html();
2468         git_print_page_nav('','', $head,undef,$head);
2469         my %tag = parse_tag($hash);
2470         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2471         print "<div class=\"title_text\">\n" .
2472               "<table cellspacing=\"0\">\n" .
2473               "<tr>\n" .
2474               "<td>object</td>\n" .
2475               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2476                                $tag{'object'}) . "</td>\n" .
2477               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2478                                               $tag{'type'}) . "</td>\n" .
2479               "</tr>\n";
2480         if (defined($tag{'author'})) {
2481                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2482                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2483                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2484                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2485                         "</td></tr>\n";
2486         }
2487         print "</table>\n\n" .
2488               "</div>\n";
2489         print "<div class=\"page_body\">";
2490         my $comment = $tag{'comment'};
2491         foreach my $line (@$comment) {
2492                 print esc_html($line) . "<br/>\n";
2493         }
2494         print "</div>\n";
2495         git_footer_html();
2496 }
2497
2498 sub git_blame2 {
2499         my $fd;
2500         my $ftype;
2501
2502         my ($have_blame) = gitweb_check_feature('blame');
2503         if (!$have_blame) {
2504                 die_error('403 Permission denied', "Permission denied");
2505         }
2506         die_error('404 Not Found', "File name not defined") if (!$file_name);
2507         $hash_base ||= git_get_head_hash($project);
2508         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2509         my %co = parse_commit($hash_base)
2510                 or die_error(undef, "Reading commit failed");
2511         if (!defined $hash) {
2512                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2513                         or die_error(undef, "Error looking up file");
2514         }
2515         $ftype = git_get_type($hash);
2516         if ($ftype !~ "blob") {
2517                 die_error("400 Bad Request", "Object is not a blob");
2518         }
2519         open ($fd, "-|", git_cmd(), "blame", '-l', '--', $file_name, $hash_base)
2520                 or die_error(undef, "Open git-blame failed");
2521         git_header_html();
2522         my $formats_nav =
2523                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2524                         "blob") .
2525                 " | " .
2526                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2527                         "history") .
2528                 " | " .
2529                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2530                         "HEAD");
2531         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2532         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2533         git_print_page_path($file_name, $ftype, $hash_base);
2534         my @rev_color = (qw(light2 dark2));
2535         my $num_colors = scalar(@rev_color);
2536         my $current_color = 0;
2537         my $last_rev;
2538         print <<HTML;
2539 <div class="page_body">
2540 <table class="blame">
2541 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2542 HTML
2543         while (<$fd>) {
2544                 my ($full_rev, $author, $date, $lineno, $data) =
2545                         /^([0-9a-f]{40}).*?\s\((.*?)\s+([-\d]+ [:\d]+ [-+\d]+)\s+(\d+)\)\s(.*)/;
2546                 my $rev = substr($full_rev, 0, 8);
2547                 my $print_c8 = 0;
2548
2549                 if (!defined $last_rev) {
2550                         $last_rev = $full_rev;
2551                         $print_c8 = 1;
2552                 } elsif ($last_rev ne $full_rev) {
2553                         $last_rev = $full_rev;
2554                         $current_color = ++$current_color % $num_colors;
2555                         $print_c8 = 1;
2556                 }
2557                 print "<tr class=\"$rev_color[$current_color]\">\n";
2558                 print "<td class=\"sha1\"";
2559                 if ($print_c8 == 1) {
2560                         print " title=\"$author, $date\"";
2561                 }
2562                 print ">";
2563                 if ($print_c8 == 1) {
2564                         print $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2565                                       esc_html($rev));
2566                 }
2567                 print "</td>\n";
2568                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2569                       esc_html($lineno) . "</a></td>\n";
2570                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2571                 print "</tr>\n";
2572         }
2573         print "</table>\n";
2574         print "</div>";
2575         close $fd
2576                 or print "Reading blob failed\n";
2577         git_footer_html();
2578 }
2579
2580 sub git_blame {
2581         my $fd;
2582
2583         my ($have_blame) = gitweb_check_feature('blame');
2584         if (!$have_blame) {
2585                 die_error('403 Permission denied', "Permission denied");
2586         }
2587         die_error('404 Not Found', "File name not defined") if (!$file_name);
2588         $hash_base ||= git_get_head_hash($project);
2589         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2590         my %co = parse_commit($hash_base)
2591                 or die_error(undef, "Reading commit failed");
2592         if (!defined $hash) {
2593                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2594                         or die_error(undef, "Error lookup file");
2595         }
2596         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2597                 or die_error(undef, "Open git-annotate failed");
2598         git_header_html();
2599         my $formats_nav =
2600                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2601                         "blob") .
2602                 " | " .
2603                 $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2604                         "history") .
2605                 " | " .
2606                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2607                         "HEAD");
2608         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2609         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2610         git_print_page_path($file_name, 'blob', $hash_base);
2611         print "<div class=\"page_body\">\n";
2612         print <<HTML;
2613 <table class="blame">
2614   <tr>
2615     <th>Commit</th>
2616     <th>Age</th>
2617     <th>Author</th>
2618     <th>Line</th>
2619     <th>Data</th>
2620   </tr>
2621 HTML
2622         my @line_class = (qw(light dark));
2623         my $line_class_len = scalar (@line_class);
2624         my $line_class_num = $#line_class;
2625         while (my $line = <$fd>) {
2626                 my $long_rev;
2627                 my $short_rev;
2628                 my $author;
2629                 my $time;
2630                 my $lineno;
2631                 my $data;
2632                 my $age;
2633                 my $age_str;
2634                 my $age_class;
2635
2636                 chomp $line;
2637                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2638
2639                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2640                         $long_rev = $1;
2641                         $author   = $2;
2642                         $time     = $3;
2643                         $lineno   = $4;
2644                         $data     = $5;
2645                 } else {
2646                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2647                         next;
2648                 }
2649                 $short_rev  = substr ($long_rev, 0, 8);
2650                 $age        = time () - $time;
2651                 $age_str    = age_string ($age);
2652                 $age_str    =~ s/ /&nbsp;/g;
2653                 $age_class  = age_class($age);
2654                 $author     = esc_html ($author);
2655                 $author     =~ s/ /&nbsp;/g;
2656
2657                 $data = untabify($data);
2658                 $data = esc_html ($data);
2659
2660                 print <<HTML;
2661   <tr class="$line_class[$line_class_num]">
2662     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2663     <td class="$age_class">$age_str</td>
2664     <td>$author</td>
2665     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2666     <td class="pre">$data</td>
2667   </tr>
2668 HTML
2669         } # while (my $line = <$fd>)
2670         print "</table>\n\n";
2671         close $fd
2672                 or print "Reading blob failed.\n";
2673         print "</div>";
2674         git_footer_html();
2675 }
2676
2677 sub git_tags {
2678         my $head = git_get_head_hash($project);
2679         git_header_html();
2680         git_print_page_nav('','', $head,undef,$head);
2681         git_print_header_div('summary', $project);
2682
2683         my ($taglist) = git_get_refs_list("tags");
2684         if (@$taglist) {
2685                 git_tags_body($taglist);
2686         }
2687         git_footer_html();
2688 }
2689
2690 sub git_heads {
2691         my $head = git_get_head_hash($project);
2692         git_header_html();
2693         git_print_page_nav('','', $head,undef,$head);
2694         git_print_header_div('summary', $project);
2695
2696         my ($headlist) = git_get_refs_list("heads");
2697         if (@$headlist) {
2698                 git_heads_body($headlist, $head);
2699         }
2700         git_footer_html();
2701 }
2702
2703 sub git_blob_plain {
2704         my $expires;
2705
2706         if (!defined $hash) {
2707                 if (defined $file_name) {
2708                         my $base = $hash_base || git_get_head_hash($project);
2709                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2710                                 or die_error(undef, "Error lookup file");
2711                 } else {
2712                         die_error(undef, "No file name defined");
2713                 }
2714         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2715                 # blobs defined by non-textual hash id's can be cached
2716                 $expires = "+1d";
2717         }
2718
2719         my $type = shift;
2720         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2721                 or die_error(undef, "Couldn't cat $file_name, $hash");
2722
2723         $type ||= blob_mimetype($fd, $file_name);
2724
2725         # save as filename, even when no $file_name is given
2726         my $save_as = "$hash";
2727         if (defined $file_name) {
2728                 $save_as = $file_name;
2729         } elsif ($type =~ m/^text\//) {
2730                 $save_as .= '.txt';
2731         }
2732
2733         print $cgi->header(
2734                 -type => "$type",
2735                 -expires=>$expires,
2736                 -content_disposition => 'inline; filename="' . "$save_as" . '"');
2737         undef $/;
2738         binmode STDOUT, ':raw';
2739         print <$fd>;
2740         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2741         $/ = "\n";
2742         close $fd;
2743 }
2744
2745 sub git_blob {
2746         my $expires;
2747
2748         if (!defined $hash) {
2749                 if (defined $file_name) {
2750                         my $base = $hash_base || git_get_head_hash($project);
2751                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2752                                 or die_error(undef, "Error lookup file");
2753                 } else {
2754                         die_error(undef, "No file name defined");
2755                 }
2756         } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2757                 # blobs defined by non-textual hash id's can be cached
2758                 $expires = "+1d";
2759         }
2760
2761         my ($have_blame) = gitweb_check_feature('blame');
2762         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2763                 or die_error(undef, "Couldn't cat $file_name, $hash");
2764         my $mimetype = blob_mimetype($fd, $file_name);
2765         if ($mimetype !~ m/^text\//) {
2766                 close $fd;
2767                 return git_blob_plain($mimetype);
2768         }
2769         git_header_html(undef, $expires);
2770         my $formats_nav = '';
2771         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2772                 if (defined $file_name) {
2773                         if ($have_blame) {
2774                                 $formats_nav .=
2775                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2776                                                                hash=>$hash, file_name=>$file_name)},
2777                                                 "blame") .
2778                                         " | ";
2779                         }
2780                         $formats_nav .=
2781                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2782                                                        hash=>$hash, file_name=>$file_name)},
2783                                         "history") .
2784                                 " | " .
2785                                 $cgi->a({-href => href(action=>"blob_plain",
2786                                                        hash=>$hash, file_name=>$file_name)},
2787                                         "raw") .
2788                                 " | " .
2789                                 $cgi->a({-href => href(action=>"blob",
2790                                                        hash_base=>"HEAD", file_name=>$file_name)},
2791                                         "HEAD");
2792                 } else {
2793                         $formats_nav .=
2794                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
2795                 }
2796                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2797                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2798         } else {
2799                 print "<div class=\"page_nav\">\n" .
2800                       "<br/><br/></div>\n" .
2801                       "<div class=\"title\">$hash</div>\n";
2802         }
2803         git_print_page_path($file_name, "blob", $hash_base);
2804         print "<div class=\"page_body\">\n";
2805         my $nr;
2806         while (my $line = <$fd>) {
2807                 chomp $line;
2808                 $nr++;
2809                 $line = untabify($line);
2810                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2811                        $nr, $nr, $nr, esc_html($line);
2812         }
2813         close $fd
2814                 or print "Reading blob failed.\n";
2815         print "</div>";
2816         git_footer_html();
2817 }
2818
2819 sub git_tree {
2820         my $have_snapshot = gitweb_have_snapshot();
2821
2822         if (!defined $hash_base) {
2823                 $hash_base = "HEAD";
2824         }
2825         if (!defined $hash) {
2826                 if (defined $file_name) {
2827                         $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
2828                 } else {
2829                         $hash = $hash_base;
2830                 }
2831         }
2832         $/ = "\0";
2833         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2834                 or die_error(undef, "Open git-ls-tree failed");
2835         my @entries = map { chomp; $_ } <$fd>;
2836         close $fd or die_error(undef, "Reading tree failed");
2837         $/ = "\n";
2838
2839         my $refs = git_get_references();
2840         my $ref = format_ref_marker($refs, $hash_base);
2841         git_header_html();
2842         my $base = "";
2843         my ($have_blame) = gitweb_check_feature('blame');
2844         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2845                 my @views_nav = ();
2846                 if (defined $file_name) {
2847                         push @views_nav,
2848                                 $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2849                                                        hash=>$hash, file_name=>$file_name)},
2850                                         "history"),
2851                                 $cgi->a({-href => href(action=>"tree",
2852                                                        hash_base=>"HEAD", file_name=>$file_name)},
2853                                         "HEAD"),
2854                 }
2855                 if ($have_snapshot) {
2856                         # FIXME: Should be available when we have no hash base as well.
2857                         push @views_nav,
2858                                 $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
2859                                         "snapshot");
2860                 }
2861                 git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
2862                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2863         } else {
2864                 undef $hash_base;
2865                 print "<div class=\"page_nav\">\n";
2866                 print "<br/><br/></div>\n";
2867                 print "<div class=\"title\">$hash</div>\n";
2868         }
2869         if (defined $file_name) {
2870                 $base = esc_html("$file_name/");
2871         }
2872         git_print_page_path($file_name, 'tree', $hash_base);
2873         print "<div class=\"page_body\">\n";
2874         print "<table cellspacing=\"0\">\n";
2875         my $alternate = 1;
2876         foreach my $line (@entries) {
2877                 my %t = parse_ls_tree_line($line, -z => 1);
2878
2879                 if ($alternate) {
2880                         print "<tr class=\"dark\">\n";
2881                 } else {
2882                         print "<tr class=\"light\">\n";
2883                 }
2884                 $alternate ^= 1;
2885
2886                 git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2887
2888                 print "</tr>\n";
2889         }
2890         print "</table>\n" .
2891               "</div>";
2892         git_footer_html();
2893 }
2894
2895 sub git_snapshot {
2896         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2897         my $have_snapshot = (defined $ctype && defined $suffix);
2898         if (!$have_snapshot) {
2899                 die_error('403 Permission denied', "Permission denied");
2900         }
2901
2902         if (!defined $hash) {
2903                 $hash = git_get_head_hash($project);
2904         }
2905
2906         my $filename = basename($project) . "-$hash.tar.$suffix";
2907
2908         print $cgi->header(
2909                 -type => 'application/x-tar',
2910                 -content_encoding => $ctype,
2911                 -content_disposition => 'inline; filename="' . "$filename" . '"',
2912                 -status => '200 OK');
2913
2914         my $git_command = git_cmd_str();
2915         open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2916                 die_error(undef, "Execute git-tar-tree failed.");
2917         binmode STDOUT, ':raw';
2918         print <$fd>;
2919         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2920         close $fd;
2921
2922 }
2923
2924 sub git_log {
2925         my $head = git_get_head_hash($project);
2926         if (!defined $hash) {
2927                 $hash = $head;
2928         }
2929         if (!defined $page) {
2930                 $page = 0;
2931         }
2932         my $refs = git_get_references();
2933
2934         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2935         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2936                 or die_error(undef, "Open git-rev-list failed");
2937         my @revlist = map { chomp; $_ } <$fd>;
2938         close $fd;
2939
2940         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2941
2942         git_header_html();
2943         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2944
2945         if (!@revlist) {
2946                 my %co = parse_commit($hash);
2947
2948                 git_print_header_div('summary', $project);
2949                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2950         }
2951         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2952                 my $commit = $revlist[$i];
2953                 my $ref = format_ref_marker($refs, $commit);
2954                 my %co = parse_commit($commit);
2955                 next if !%co;
2956                 my %ad = parse_date($co{'author_epoch'});
2957                 git_print_header_div('commit',
2958                                "<span class=\"age\">$co{'age_string'}</span>" .
2959                                esc_html($co{'title'}) . $ref,
2960                                $commit);
2961                 print "<div class=\"title_text\">\n" .
2962                       "<div class=\"log_link\">\n" .
2963                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2964                       " | " .
2965                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2966                       " | " .
2967                       $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
2968                       "<br/>\n" .
2969                       "</div>\n" .
2970                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2971                       "</div>\n";
2972
2973                 print "<div class=\"log_body\">\n";
2974                 git_print_simplified_log($co{'comment'});
2975                 print "</div>\n";
2976         }
2977         git_footer_html();
2978 }
2979
2980 sub git_commit {
2981         my %co = parse_commit($hash);
2982         if (!%co) {
2983                 die_error(undef, "Unknown commit object");
2984         }
2985         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2986         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2987
2988         my $parent = $co{'parent'};
2989         if (!defined $parent) {
2990                 $parent = "--root";
2991         }
2992         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2993                 or die_error(undef, "Open git-diff-tree failed");
2994         my @difftree = map { chomp; $_ } <$fd>;
2995         close $fd or die_error(undef, "Reading git-diff-tree failed");
2996
2997         # non-textual hash id's can be cached
2998         my $expires;
2999         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3000                 $expires = "+1d";
3001         }
3002         my $refs = git_get_references();
3003         my $ref = format_ref_marker($refs, $co{'id'});
3004
3005         my $have_snapshot = gitweb_have_snapshot();
3006
3007         my @views_nav = ();
3008         if (defined $file_name && defined $co{'parent'}) {
3009                 push @views_nav,
3010                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3011                                 "blame");
3012         }
3013         if (defined $co{'parent'}) {
3014                 push @views_nav,
3015                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash)}, "shortlog"),
3016                         $cgi->a({-href => href(action=>"log", hash=>$hash)}, "log");
3017         }
3018         git_header_html(undef, $expires);
3019         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
3020                            $hash, $co{'tree'}, $hash,
3021                            join (' | ', @views_nav));
3022
3023         if (defined $co{'parent'}) {
3024                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3025         } else {
3026                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3027         }
3028         print "<div class=\"title_text\">\n" .
3029               "<table cellspacing=\"0\">\n";
3030         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3031               "<tr>" .
3032               "<td></td><td> $ad{'rfc2822'}";
3033         if ($ad{'hour_local'} < 6) {
3034                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3035                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3036         } else {
3037                 printf(" (%02d:%02d %s)",
3038                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3039         }
3040         print "</td>" .
3041               "</tr>\n";
3042         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3043         print "<tr><td></td><td> $cd{'rfc2822'}" .
3044               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3045               "</td></tr>\n";
3046         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3047         print "<tr>" .
3048               "<td>tree</td>" .
3049               "<td class=\"sha1\">" .
3050               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3051                        class => "list"}, $co{'tree'}) .
3052               "</td>" .
3053               "<td class=\"link\">" .
3054               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3055                       "tree");
3056         if ($have_snapshot) {
3057                 print " | " .
3058                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3059         }
3060         print "</td>" .
3061               "</tr>\n";
3062         my $parents = $co{'parents'};
3063         foreach my $par (@$parents) {
3064                 print "<tr>" .
3065                       "<td>parent</td>" .
3066                       "<td class=\"sha1\">" .
3067                       $cgi->a({-href => href(action=>"commit", hash=>$par),
3068                                class => "list"}, $par) .
3069                       "</td>" .
3070                       "<td class=\"link\">" .
3071                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3072                       " | " .
3073                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3074                       "</td>" .
3075                       "</tr>\n";
3076         }
3077         print "</table>".
3078               "</div>\n";
3079
3080         print "<div class=\"page_body\">\n";
3081         git_print_log($co{'comment'});
3082         print "</div>\n";
3083
3084         git_difftree_body(\@difftree, $hash, $parent);
3085
3086         git_footer_html();
3087 }
3088
3089 sub git_blobdiff {
3090         my $format = shift || 'html';
3091
3092         my $fd;
3093         my @difftree;
3094         my %diffinfo;
3095         my $expires;
3096
3097         # preparing $fd and %diffinfo for git_patchset_body
3098         # new style URI
3099         if (defined $hash_base && defined $hash_parent_base) {
3100                 if (defined $file_name) {
3101                         # read raw output
3102                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
3103                                 "--", $file_name
3104                                 or die_error(undef, "Open git-diff-tree failed");
3105                         @difftree = map { chomp; $_ } <$fd>;
3106                         close $fd
3107                                 or die_error(undef, "Reading git-diff-tree failed");
3108                         @difftree
3109                                 or die_error('404 Not Found', "Blob diff not found");
3110
3111                 } elsif (defined $hash &&
3112                          $hash =~ /[0-9a-fA-F]{40}/) {
3113                         # try to find filename from $hash
3114
3115                         # read filtered raw output
3116                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
3117                                 or die_error(undef, "Open git-diff-tree failed");
3118                         @difftree =
3119                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3120                                 # $hash == to_id
3121                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3122                                 map { chomp; $_ } <$fd>;
3123                         close $fd
3124                                 or die_error(undef, "Reading git-diff-tree failed");
3125                         @difftree
3126                                 or die_error('404 Not Found', "Blob diff not found");
3127
3128                 } else {
3129                         die_error('404 Not Found', "Missing one of the blob diff parameters");
3130                 }
3131
3132                 if (@difftree > 1) {
3133                         die_error('404 Not Found', "Ambiguous blob diff specification");
3134                 }
3135
3136                 %diffinfo = parse_difftree_raw_line($difftree[0]);
3137                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3138                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3139
3140                 $hash_parent ||= $diffinfo{'from_id'};
3141                 $hash        ||= $diffinfo{'to_id'};
3142
3143                 # non-textual hash id's can be cached
3144                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3145                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3146                         $expires = '+1d';
3147                 }
3148
3149                 # open patch output
3150                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3151                         '-p', $hash_parent_base, $hash_base,
3152                         "--", $file_name
3153                         or die_error(undef, "Open git-diff-tree failed");
3154         }
3155
3156         # old/legacy style URI
3157         if (!%diffinfo && # if new style URI failed
3158             defined $hash && defined $hash_parent) {
3159                 # fake git-diff-tree raw output
3160                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3161                 $diffinfo{'from_id'} = $hash_parent;
3162                 $diffinfo{'to_id'}   = $hash;
3163                 if (defined $file_name) {
3164                         if (defined $file_parent) {
3165                                 $diffinfo{'status'} = '2';
3166                                 $diffinfo{'from_file'} = $file_parent;
3167                                 $diffinfo{'to_file'}   = $file_name;
3168                         } else { # assume not renamed
3169                                 $diffinfo{'status'} = '1';
3170                                 $diffinfo{'from_file'} = $file_name;
3171                                 $diffinfo{'to_file'}   = $file_name;
3172                         }
3173                 } else { # no filename given
3174                         $diffinfo{'status'} = '2';
3175                         $diffinfo{'from_file'} = $hash_parent;
3176                         $diffinfo{'to_file'}   = $hash;
3177                 }
3178
3179                 # non-textual hash id's can be cached
3180                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3181                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3182                         $expires = '+1d';
3183                 }
3184
3185                 # open patch output
3186                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
3187                         or die_error(undef, "Open git-diff failed");
3188         } else  {
3189                 die_error('404 Not Found', "Missing one of the blob diff parameters")
3190                         unless %diffinfo;
3191         }
3192
3193         # header
3194         if ($format eq 'html') {
3195                 my $formats_nav =
3196                         $cgi->a({-href => href(action=>"blobdiff_plain",
3197                                                hash=>$hash, hash_parent=>$hash_parent,
3198                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3199                                                file_name=>$file_name, file_parent=>$file_parent)},
3200                                 "raw");
3201                 git_header_html(undef, $expires);
3202                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3203                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3204                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3205                 } else {
3206                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3207                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3208                 }
3209                 if (defined $file_name) {
3210                         git_print_page_path($file_name, "blob", $hash_base);
3211                 } else {
3212                         print "<div class=\"page_path\"></div>\n";
3213                 }
3214
3215         } elsif ($format eq 'plain') {
3216                 print $cgi->header(
3217                         -type => 'text/plain',
3218                         -charset => 'utf-8',
3219                         -expires => $expires,
3220                         -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3221
3222                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3223
3224         } else {
3225                 die_error(undef, "Unknown blobdiff format");
3226         }
3227
3228         # patch
3229         if ($format eq 'html') {
3230                 print "<div class=\"page_body\">\n";
3231
3232                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3233                 close $fd;
3234
3235                 print "</div>\n"; # class="page_body"
3236                 git_footer_html();
3237
3238         } else {
3239                 while (my $line = <$fd>) {
3240                         $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3241                         $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3242
3243                         print $line;
3244
3245                         last if $line =~ m!^\+\+\+!;
3246                 }
3247                 local $/ = undef;
3248                 print <$fd>;
3249                 close $fd;
3250         }
3251 }
3252
3253 sub git_blobdiff_plain {
3254         git_blobdiff('plain');
3255 }
3256
3257 sub git_commitdiff {
3258         my $format = shift || 'html';
3259         my %co = parse_commit($hash);
3260         if (!%co) {
3261                 die_error(undef, "Unknown commit object");
3262         }
3263         if (!defined $hash_parent) {
3264                 $hash_parent = $co{'parent'} || '--root';
3265         }
3266
3267         # read commitdiff
3268         my $fd;
3269         my @difftree;
3270         if ($format eq 'html') {
3271                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3272                         "--patch-with-raw", "--full-index", $hash_parent, $hash
3273                         or die_error(undef, "Open git-diff-tree failed");
3274
3275                 while (chomp(my $line = <$fd>)) {
3276                         # empty line ends raw part of diff-tree output
3277                         last unless $line;
3278                         push @difftree, $line;
3279                 }
3280
3281         } elsif ($format eq 'plain') {
3282                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3283                         '-p', $hash_parent, $hash
3284                         or die_error(undef, "Open git-diff-tree failed");
3285
3286         } else {
3287                 die_error(undef, "Unknown commitdiff format");
3288         }
3289
3290         # non-textual hash id's can be cached
3291         my $expires;
3292         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3293                 $expires = "+1d";
3294         }
3295
3296         # write commit message
3297         if ($format eq 'html') {
3298                 my $refs = git_get_references();
3299                 my $ref = format_ref_marker($refs, $co{'id'});
3300                 my $formats_nav =
3301                         $cgi->a({-href => href(action=>"commitdiff_plain",
3302                                                hash=>$hash, hash_parent=>$hash_parent)},
3303                                 "raw");
3304
3305                 git_header_html(undef, $expires);
3306                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3307                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3308                 git_print_authorship(\%co);
3309                 print "<div class=\"page_body\">\n";
3310                 print "<div class=\"log\">\n";
3311                 git_print_simplified_log($co{'comment'}, 1); # skip title
3312                 print "</div>\n"; # class="log"
3313
3314         } elsif ($format eq 'plain') {
3315                 my $refs = git_get_references("tags");
3316                 my $tagname = git_get_rev_name_tags($hash);
3317                 my $filename = basename($project) . "-$hash.patch";
3318
3319                 print $cgi->header(
3320                         -type => 'text/plain',
3321                         -charset => 'utf-8',
3322                         -expires => $expires,
3323                         -content_disposition => 'inline; filename="' . "$filename" . '"');
3324                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3325                 print <<TEXT;
3326 From: $co{'author'}
3327 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3328 Subject: $co{'title'}
3329 TEXT
3330                 print "X-Git-Tag: $tagname\n" if $tagname;
3331                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3332
3333                 foreach my $line (@{$co{'comment'}}) {
3334                         print "$line\n";
3335                 }
3336                 print "---\n\n";
3337         }
3338
3339         # write patch
3340         if ($format eq 'html') {
3341                 git_difftree_body(\@difftree, $hash, $hash_parent);
3342                 print "<br/>\n";
3343
3344                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3345                 close $fd;
3346                 print "</div>\n"; # class="page_body"
3347                 git_footer_html();
3348
3349         } elsif ($format eq 'plain') {
3350                 local $/ = undef;
3351                 print <$fd>;
3352                 close $fd
3353                         or print "Reading git-diff-tree failed\n";
3354         }
3355 }
3356
3357 sub git_commitdiff_plain {
3358         git_commitdiff('plain');
3359 }
3360
3361 sub git_history {
3362         if (!defined $hash_base) {
3363                 $hash_base = git_get_head_hash($project);
3364         }
3365         if (!defined $page) {
3366                 $page = 0;
3367         }
3368         my $ftype;
3369         my %co = parse_commit($hash_base);
3370         if (!%co) {
3371                 die_error(undef, "Unknown commit object");
3372         }
3373
3374         my $refs = git_get_references();
3375         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3376
3377         if (!defined $hash && defined $file_name) {
3378                 $hash = git_get_hash_by_path($hash_base, $file_name);
3379         }
3380         if (defined $hash) {
3381                 $ftype = git_get_type($hash);
3382         }
3383
3384         open my $fd, "-|",
3385                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3386                         or die_error(undef, "Open git-rev-list-failed");
3387         my @revlist = map { chomp; $_ } <$fd>;
3388         close $fd
3389                 or die_error(undef, "Reading git-rev-list failed");
3390
3391         my $paging_nav = '';
3392         if ($page > 0) {
3393                 $paging_nav .=
3394                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3395                                                file_name=>$file_name)},
3396                                 "first");
3397                 $paging_nav .= " &sdot; " .
3398                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3399                                                file_name=>$file_name, page=>$page-1),
3400                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3401         } else {
3402                 $paging_nav .= "first";
3403                 $paging_nav .= " &sdot; prev";
3404         }
3405         if ($#revlist >= (100 * ($page+1)-1)) {
3406                 $paging_nav .= " &sdot; " .
3407                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3408                                                file_name=>$file_name, page=>$page+1),
3409                                  -accesskey => "n", -title => "Alt-n"}, "next");
3410         } else {
3411                 $paging_nav .= " &sdot; next";
3412         }
3413         my $next_link = '';
3414         if ($#revlist >= (100 * ($page+1)-1)) {
3415                 $next_link =
3416                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3417                                                file_name=>$file_name, page=>$page+1),
3418                                  -title => "Alt-n"}, "next");
3419         }
3420
3421         git_header_html();
3422         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3423         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3424         git_print_page_path($file_name, $ftype, $hash_base);
3425
3426         git_history_body(\@revlist, ($page * 100), $#revlist,
3427                          $refs, $hash_base, $ftype, $next_link);
3428
3429         git_footer_html();
3430 }
3431
3432 sub git_search {
3433         if (!defined $searchtext) {
3434                 die_error(undef, "Text field empty");
3435         }
3436         if (!defined $hash) {
3437                 $hash = git_get_head_hash($project);
3438         }
3439         my %co = parse_commit($hash);
3440         if (!%co) {
3441                 die_error(undef, "Unknown commit object");
3442         }
3443
3444         my $commit_search = 1;
3445         my $author_search = 0;
3446         my $committer_search = 0;
3447         my $pickaxe_search = 0;
3448         if ($searchtext =~ s/^author\\://i) {
3449                 $author_search = 1;
3450         } elsif ($searchtext =~ s/^committer\\://i) {
3451                 $committer_search = 1;
3452         } elsif ($searchtext =~ s/^pickaxe\\://i) {
3453                 $commit_search = 0;
3454                 $pickaxe_search = 1;
3455
3456                 # pickaxe may take all resources of your box and run for several minutes
3457                 # with every query - so decide by yourself how public you make this feature
3458                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3459                 if (!$have_pickaxe) {
3460                         die_error('403 Permission denied', "Permission denied");
3461                 }
3462         }
3463         git_header_html();
3464         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3465         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3466
3467         print "<table cellspacing=\"0\">\n";
3468         my $alternate = 1;
3469         if ($commit_search) {
3470                 $/ = "\0";
3471                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3472                 while (my $commit_text = <$fd>) {
3473                         if (!grep m/$searchtext/i, $commit_text) {
3474                                 next;
3475                         }
3476                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3477                                 next;
3478                         }
3479                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3480                                 next;
3481                         }
3482                         my @commit_lines = split "\n", $commit_text;
3483                         my %co = parse_commit(undef, \@commit_lines);
3484                         if (!%co) {
3485                                 next;
3486                         }
3487                         if ($alternate) {
3488                                 print "<tr class=\"dark\">\n";
3489                         } else {
3490                                 print "<tr class=\"light\">\n";
3491                         }
3492                         $alternate ^= 1;
3493                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3494                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3495                               "<td>" .
3496                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3497                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3498                         my $comment = $co{'comment'};
3499                         foreach my $line (@$comment) {
3500                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3501                                         my $lead = esc_html($1) || "";
3502                                         $lead = chop_str($lead, 30, 10);
3503                                         my $match = esc_html($2) || "";
3504                                         my $trail = esc_html($3) || "";
3505                                         $trail = chop_str($trail, 30, 10);
3506                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3507                                         print chop_str($text, 80, 5) . "<br/>\n";
3508                                 }
3509                         }
3510                         print "</td>\n" .
3511                               "<td class=\"link\">" .
3512                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3513                               " | " .
3514                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3515                         print "</td>\n" .
3516                               "</tr>\n";
3517                 }
3518                 close $fd;
3519         }
3520
3521         if ($pickaxe_search) {
3522                 $/ = "\n";
3523                 my $git_command = git_cmd_str();
3524                 open my $fd, "-|", "$git_command rev-list $hash | " .
3525                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3526                 undef %co;
3527                 my @files;
3528                 while (my $line = <$fd>) {
3529                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3530                                 my %set;
3531                                 $set{'file'} = $6;
3532                                 $set{'from_id'} = $3;
3533                                 $set{'to_id'} = $4;
3534                                 $set{'id'} = $set{'to_id'};
3535                                 if ($set{'id'} =~ m/0{40}/) {
3536                                         $set{'id'} = $set{'from_id'};
3537                                 }
3538                                 if ($set{'id'} =~ m/0{40}/) {
3539                                         next;
3540                                 }
3541                                 push @files, \%set;
3542                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3543                                 if (%co) {
3544                                         if ($alternate) {
3545                                                 print "<tr class=\"dark\">\n";
3546                                         } else {
3547                                                 print "<tr class=\"light\">\n";
3548                                         }
3549                                         $alternate ^= 1;
3550                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3551                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3552                                               "<td>" .
3553                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3554                                                       -class => "list subject"},
3555                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3556                                         while (my $setref = shift @files) {
3557                                                 my %set = %$setref;
3558                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3559                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3560                                                               -class => "list"},
3561                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3562                                                       "<br/>\n";
3563                                         }
3564                                         print "</td>\n" .
3565                                               "<td class=\"link\">" .
3566                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3567                                               " | " .
3568                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3569                                         print "</td>\n" .
3570                                               "</tr>\n";
3571                                 }
3572                                 %co = parse_commit($1);
3573                         }
3574                 }
3575                 close $fd;
3576         }
3577         print "</table>\n";
3578         git_footer_html();
3579 }
3580
3581 sub git_shortlog {
3582         my $head = git_get_head_hash($project);
3583         if (!defined $hash) {
3584                 $hash = $head;
3585         }
3586         if (!defined $page) {
3587                 $page = 0;
3588         }
3589         my $refs = git_get_references();
3590
3591         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3592         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3593                 or die_error(undef, "Open git-rev-list failed");
3594         my @revlist = map { chomp; $_ } <$fd>;
3595         close $fd;
3596
3597         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3598         my $next_link = '';
3599         if ($#revlist >= (100 * ($page+1)-1)) {
3600                 $next_link =
3601                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3602                                  -title => "Alt-n"}, "next");
3603         }
3604
3605
3606         git_header_html();
3607         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3608         git_print_header_div('summary', $project);
3609
3610         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3611
3612         git_footer_html();
3613 }
3614
3615 ## ......................................................................
3616 ## feeds (RSS, OPML)
3617
3618 sub git_rss {
3619         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3620         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3621                 or die_error(undef, "Open git-rev-list failed");
3622         my @revlist = map { chomp; $_ } <$fd>;
3623         close $fd or die_error(undef, "Reading git-rev-list failed");
3624         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3625         print <<XML;
3626 <?xml version="1.0" encoding="utf-8"?>
3627 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3628 <channel>
3629 <title>$project $my_uri $my_url</title>
3630 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3631 <description>$project log</description>
3632 <language>en</language>
3633 XML
3634
3635         for (my $i = 0; $i <= $#revlist; $i++) {
3636                 my $commit = $revlist[$i];
3637                 my %co = parse_commit($commit);
3638                 # we read 150, we always show 30 and the ones more recent than 48 hours
3639                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3640                         last;
3641                 }
3642                 my %cd = parse_date($co{'committer_epoch'});
3643                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3644                         $co{'parent'}, $co{'id'}
3645                         or next;
3646                 my @difftree = map { chomp; $_ } <$fd>;
3647                 close $fd
3648                         or next;
3649                 print "<item>\n" .
3650                       "<title>" .
3651                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3652                       "</title>\n" .
3653                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3654                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3655                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3656                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3657                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3658                       "<content:encoded>" .
3659                       "<![CDATA[\n";
3660                 my $comment = $co{'comment'};
3661                 foreach my $line (@$comment) {
3662                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
3663                         print "$line<br/>\n";
3664                 }
3665                 print "<br/>\n";
3666                 foreach my $line (@difftree) {
3667                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3668                                 next;
3669                         }
3670                         my $file = esc_html(unquote($7));
3671                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
3672                         print "$file<br/>\n";
3673                 }
3674                 print "]]>\n" .
3675                       "</content:encoded>\n" .
3676                       "</item>\n";
3677         }
3678         print "</channel></rss>";
3679 }
3680
3681 sub git_opml {
3682         my @list = git_get_projects_list();
3683
3684         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3685         print <<XML;
3686 <?xml version="1.0" encoding="utf-8"?>
3687 <opml version="1.0">
3688 <head>
3689   <title>$site_name Git OPML Export</title>
3690 </head>
3691 <body>
3692 <outline text="git RSS feeds">
3693 XML
3694
3695         foreach my $pr (@list) {
3696                 my %proj = %$pr;
3697                 my $head = git_get_head_hash($proj{'path'});
3698                 if (!defined $head) {
3699                         next;
3700                 }
3701                 $git_dir = "$projectroot/$proj{'path'}";
3702                 my %co = parse_commit($head);
3703                 if (!%co) {
3704                         next;
3705                 }
3706
3707                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3708                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3709                 my $html = "$my_url?p=$proj{'path'};a=summary";
3710                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3711         }
3712         print <<XML;
3713 </outline>
3714 </body>
3715 </opml>
3716 XML
3717 }