gitweb/gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # location for temporary files needed for diffs
  35 our $git_temp = "/tmp/gitweb";
  36
  37 # target of the home link on top of all pages
  38 our $home_link = $my_uri || "/";
  39
  40 # string of the home link on top of all pages
  41 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  42
  43 # name of your site or organization to appear in page titles
  44 # replace this with something more descriptive for clearer bookmarks
  45 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  46
  47 # html text to include at home page
  48 our $home_text = "++GITWEB_HOMETEXT++";
  49
  50 # URI of default stylesheet
  51 our $stylesheet = "++GITWEB_CSS++";
  52 # URI of GIT logo
  53 our $logo = "++GITWEB_LOGO++";
  54
  55 # source of projects list
  56 our $projects_list = "++GITWEB_LIST++";
  57
  58 # list of git base URLs used for URL to where fetch project from,
  59 # i.e. full URL is "$git_base_url/$project"
  60 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  61
  62 # default blob_plain mimetype and default charset for text/plain blob
  63 our $default_blob_plain_mimetype = 'text/plain';
  64 our $default_text_plain_charset  = undef;
  65
  66 # file to use for guessing MIME types before trying /etc/mime.types
  67 # (relative to the current git repository)
  68 our $mimetypes_file = undef;
  69
  70 # You define site-wide feature defaults here; override them with
  71 # $GITWEB_CONFIG as necessary.
  72 our %feature =
  73 (
  74
  75 # feature  => {'sub' => feature-sub, 'override' => allow-override, 'default' => [ default options...]
  76
  77 'blame'         => {'sub' => \&feature_blame, 'override' => 0, 'default' => [0]},
  78 'snapshot'      => {'sub' => \&feature_snapshot, 'override' => 0, 'default' => ['x-gzip', 'gz', 'gzip']},
  79
  80 );
  81
  82 sub gitweb_check_feature {
  83         my ($name) = @_;
  84         return undef unless exists $feature{$name};
  85         my ($sub, $override, @defaults) = ($feature{$name}{'sub'},
  86                                                 $feature{$name}{'override'},
  87                                                 @{$feature{$name}{'default'}});
  88         if (!$override) { return @defaults; }
  89         return $sub->(@defaults);
  90 }
  91
  92 # To enable system wide have in $GITWEB_CONFIG
  93 # $feature{'blame'}{'default'} =  [1];
  94 # To have project specific config enable override in  $GITWEB_CONFIG
  95 # $feature{'blame'}{'override'} =  1;
  96 # and in project config gitweb.blame = 0|1;
  97
  98 sub feature_blame {
  99         my ($val) = git_get_project_config('blame', '--bool');
 100
 101         if ($val eq 'true') {
 102                 return 1;
 103         } elsif ($val eq 'false') {
 104                 return 0;
 105         }
 106
 107         return $_[0];
 108 }
 109
 110 # To disable system wide have in $GITWEB_CONFIG
 111 # $feature{'snapshot'}{'default'} =  [undef];
 112 # To have project specific config enable override in  $GITWEB_CONFIG
 113 # $feature{'blame'}{'override'} =  1;
 114 # and in project config  gitweb.snapshot = none|gzip|bzip2
 115
 116 sub feature_snapshot {
 117         my ($ctype, $suffix, $command) = @_;
 118
 119         my ($val) = git_get_project_config('snapshot');
 120
 121         if ($val eq 'gzip') {
 122                 return ('x-gzip', 'gz', 'gzip');
 123         } elsif ($val eq 'bzip2') {
 124                 return ('x-bzip2', 'bz2', 'bzip2');
 125         } elsif ($val eq 'none') {
 126                 return ();
 127         }
 128
 129         return ($ctype, $suffix, $command);
 130 }
 131
 132 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 133 require $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 134
 135 # version of the core git binary
 136 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 137
 138 $projects_list ||= $projectroot;
 139 if (! -d $git_temp) {
 140         mkdir($git_temp, 0700) || die_error(undef, "Couldn't mkdir $git_temp");
 141 }
 142
 143 # ======================================================================
 144 # input validation and dispatch
 145 our $action = $cgi->param('a');
 146 if (defined $action) {
 147         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 148                 die_error(undef, "Invalid action parameter");
 149         }
 150         # action which does not check rest of parameters
 151         if ($action eq "opml") {
 152                 git_opml();
 153                 exit;
 154         }
 155 }
 156
 157 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
 158 if (defined $project) {
 159         $project =~ s|^/||;
 160         $project =~ s|/$||;
 161         $project = undef unless $project;
 162 }
 163 if (defined $project) {
 164         if (!validate_input($project)) {
 165                 die_error(undef, "Invalid project parameter");
 166         }
 167         if (!(-d "$projectroot/$project")) {
 168                 die_error(undef, "No such directory");
 169         }
 170         if (!(-e "$projectroot/$project/HEAD")) {
 171                 die_error(undef, "No such project");
 172         }
 173         $ENV{'GIT_DIR'} = "$projectroot/$project";
 174 } else {
 175         git_project_list();
 176         exit;
 177 }
 178
 179 our $file_name = $cgi->param('f');
 180 if (defined $file_name) {
 181         if (!validate_input($file_name)) {
 182                 die_error(undef, "Invalid file parameter");
 183         }
 184 }
 185
 186 our $file_parent = $cgi->param('fp');
 187 if (defined $file_parent) {
 188         if (!validate_input($file_parent)) {
 189                 die_error(undef, "Invalid file parent parameter");
 190         }
 191 }
 192
 193 our $hash = $cgi->param('h');
 194 if (defined $hash) {
 195         if (!validate_input($hash)) {
 196                 die_error(undef, "Invalid hash parameter");
 197         }
 198 }
 199
 200 our $hash_parent = $cgi->param('hp');
 201 if (defined $hash_parent) {
 202         if (!validate_input($hash_parent)) {
 203                 die_error(undef, "Invalid hash parent parameter");
 204         }
 205 }
 206
 207 our $hash_base = $cgi->param('hb');
 208 if (defined $hash_base) {
 209         if (!validate_input($hash_base)) {
 210                 die_error(undef, "Invalid hash base parameter");
 211         }
 212 }
 213
 214 our $page = $cgi->param('pg');
 215 if (defined $page) {
 216         if ($page =~ m/[^0-9]$/) {
 217                 die_error(undef, "Invalid page parameter");
 218         }
 219 }
 220
 221 our $searchtext = $cgi->param('s');
 222 if (defined $searchtext) {
 223         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 224                 die_error(undef, "Invalid search parameter");
 225         }
 226         $searchtext = quotemeta $searchtext;
 227 }
 228
 229 # dispatch
 230 my %actions = (
 231         "blame" => \&git_blame2,
 232         "blobdiff" => \&git_blobdiff,
 233         "blobdiff_plain" => \&git_blobdiff_plain,
 234         "blob" => \&git_blob,
 235         "blob_plain" => \&git_blob_plain,
 236         "commitdiff" => \&git_commitdiff,
 237         "commitdiff_plain" => \&git_commitdiff_plain,
 238         "commit" => \&git_commit,
 239         "heads" => \&git_heads,
 240         "history" => \&git_history,
 241         "log" => \&git_log,
 242         "rss" => \&git_rss,
 243         "search" => \&git_search,
 244         "shortlog" => \&git_shortlog,
 245         "summary" => \&git_summary,
 246         "tag" => \&git_tag,
 247         "tags" => \&git_tags,
 248         "tree" => \&git_tree,
 249         "snapshot" => \&git_snapshot,
 250 );
 251
 252 $action = 'summary' if (!defined($action));
 253 if (!defined($actions{$action})) {
 254         die_error(undef, "Unknown action");
 255 }
 256 $actions{$action}->();
 257 exit;
 258
 259 ## ======================================================================
 260 ## action links
 261
 262 sub href(%) {
 263         my %mapping = (
 264                 action => "a",
 265                 project => "p",
 266                 file_name => "f",
 267                 file_parent => "fp",
 268                 hash => "h",
 269                 hash_parent => "hp",
 270                 hash_base => "hb",
 271                 page => "pg",
 272                 searchtext => "s",
 273         );
 274
 275         my %params = @_;
 276         $params{"project"} ||= $project;
 277
 278         my $href = "$my_uri?";
 279         $href .= esc_param( join(";",
 280                 map {
 281                         "$mapping{$_}=$params{$_}" if defined $params{$_}
 282                 } keys %params
 283         ) );
 284
 285         return $href;
 286 }
 287
 288
 289 ## ======================================================================
 290 ## validation, quoting/unquoting and escaping
 291
 292 sub validate_input {
 293         my $input = shift;
 294
 295         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 296                 return $input;
 297         }
 298         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 299                 return undef;
 300         }
 301         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 302                 return undef;
 303         }
 304         return $input;
 305 }
 306
 307 # quote unsafe chars, but keep the slash, even when it's not
 308 # correct, but quoted slashes look too horrible in bookmarks
 309 sub esc_param {
 310         my $str = shift;
 311         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 312         $str =~ s/\+/%2B/g;
 313         $str =~ s/ /\+/g;
 314         return $str;
 315 }
 316
 317 # replace invalid utf8 character with SUBSTITUTION sequence
 318 sub esc_html {
 319         my $str = shift;
 320         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 321         $str = escapeHTML($str);
 322         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 323         return $str;
 324 }
 325
 326 # git may return quoted and escaped filenames
 327 sub unquote {
 328         my $str = shift;
 329         if ($str =~ m/^"(.*)"$/) {
 330                 $str = $1;
 331                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 332         }
 333         return $str;
 334 }
 335
 336 # escape tabs (convert tabs to spaces)
 337 sub untabify {
 338         my $line = shift;
 339
 340         while ((my $pos = index($line, "\t")) != -1) {
 341                 if (my $count = (8 - ($pos % 8))) {
 342                         my $spaces = ' ' x $count;
 343                         $line =~ s/\t/$spaces/;
 344                 }
 345         }
 346
 347         return $line;
 348 }
 349
 350 ## ----------------------------------------------------------------------
 351 ## HTML aware string manipulation
 352
 353 sub chop_str {
 354         my $str = shift;
 355         my $len = shift;
 356         my $add_len = shift || 10;
 357
 358         # allow only $len chars, but don't cut a word if it would fit in $add_len
 359         # if it doesn't fit, cut it if it's still longer than the dots we would add
 360         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 361         my $body = $1;
 362         my $tail = $2;
 363         if (length($tail) > 4) {
 364                 $tail = " ...";
 365                 $body =~ s/&[^;]*$//; # remove chopped character entities
 366         }
 367         return "$body$tail";
 368 }
 369
 370 ## ----------------------------------------------------------------------
 371 ## functions returning short strings
 372
 373 # CSS class for given age value (in seconds)
 374 sub age_class {
 375         my $age = shift;
 376
 377         if ($age < 60*60*2) {
 378                 return "age0";
 379         } elsif ($age < 60*60*24*2) {
 380                 return "age1";
 381         } else {
 382                 return "age2";
 383         }
 384 }
 385
 386 # convert age in seconds to "nn units ago" string
 387 sub age_string {
 388         my $age = shift;
 389         my $age_str;
 390
 391         if ($age > 60*60*24*365*2) {
 392                 $age_str = (int $age/60/60/24/365);
 393                 $age_str .= " years ago";
 394         } elsif ($age > 60*60*24*(365/12)*2) {
 395                 $age_str = int $age/60/60/24/(365/12);
 396                 $age_str .= " months ago";
 397         } elsif ($age > 60*60*24*7*2) {
 398                 $age_str = int $age/60/60/24/7;
 399                 $age_str .= " weeks ago";
 400         } elsif ($age > 60*60*24*2) {
 401                 $age_str = int $age/60/60/24;
 402                 $age_str .= " days ago";
 403         } elsif ($age > 60*60*2) {
 404                 $age_str = int $age/60/60;
 405                 $age_str .= " hours ago";
 406         } elsif ($age > 60*2) {
 407                 $age_str = int $age/60;
 408                 $age_str .= " min ago";
 409         } elsif ($age > 2) {
 410                 $age_str = int $age;
 411                 $age_str .= " sec ago";
 412         } else {
 413                 $age_str .= " right now";
 414         }
 415         return $age_str;
 416 }
 417
 418 # convert file mode in octal to symbolic file mode string
 419 sub mode_str {
 420         my $mode = oct shift;
 421
 422         if (S_ISDIR($mode & S_IFMT)) {
 423                 return 'drwxr-xr-x';
 424         } elsif (S_ISLNK($mode)) {
 425                 return 'lrwxrwxrwx';
 426         } elsif (S_ISREG($mode)) {
 427                 # git cares only about the executable bit
 428                 if ($mode & S_IXUSR) {
 429                         return '-rwxr-xr-x';
 430                 } else {
 431                         return '-rw-r--r--';
 432                 };
 433         } else {
 434                 return '----------';
 435         }
 436 }
 437
 438 # convert file mode in octal to file type string
 439 sub file_type {
 440         my $mode = oct shift;
 441
 442         if (S_ISDIR($mode & S_IFMT)) {
 443                 return "directory";
 444         } elsif (S_ISLNK($mode)) {
 445                 return "symlink";
 446         } elsif (S_ISREG($mode)) {
 447                 return "file";
 448         } else {
 449                 return "unknown";
 450         }
 451 }
 452
 453 ## ----------------------------------------------------------------------
 454 ## functions returning short HTML fragments, or transforming HTML fragments
 455 ## which don't beling to other sections
 456
 457 # format line of commit message or tag comment
 458 sub format_log_line_html {
 459         my $line = shift;
 460
 461         $line = esc_html($line);
 462         $line =~ s/ /&nbsp;/g;
 463         if ($line =~ m/([0-9a-fA-F]{40})/) {
 464                 my $hash_text = $1;
 465                 if (git_get_type($hash_text) eq "commit") {
 466                         my $link = $cgi->a({-class => "text", -href => href(action=>"commit", hash=>$hash_text)}, $hash_text);
 467                         $line =~ s/$hash_text/$link/;
 468                 }
 469         }
 470         return $line;
 471 }
 472
 473 # format marker of refs pointing to given object
 474 sub format_ref_marker {
 475         my ($refs, $id) = @_;
 476         my $markers = '';
 477
 478         if (defined $refs->{$id}) {
 479                 foreach my $ref (@{$refs->{$id}}) {
 480                         my ($type, $name) = qw();
 481                         # e.g. tags/v2.6.11 or heads/next
 482                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 483                                 $type = $1;
 484                                 $name = $2;
 485                         } else {
 486                                 $type = "ref";
 487                                 $name = $ref;
 488                         }
 489
 490                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 491                 }
 492         }
 493
 494         if ($markers) {
 495                 return ' <span class="refs">'. $markers . '</span>';
 496         } else {
 497                 return "";
 498         }
 499 }
 500
 501 # format, perhaps shortened and with markers, title line
 502 sub format_subject_html {
 503         my ($long, $short, $href, $extra) = @_;
 504         $extra = '' unless defined($extra);
 505
 506         if (length($short) < length($long)) {
 507                 return $cgi->a({-href => $href, -class => "list",
 508                                 -title => $long},
 509                        esc_html($short) . $extra);
 510         } else {
 511                 return $cgi->a({-href => $href, -class => "list"},
 512                        esc_html($long)  . $extra);
 513         }
 514 }
 515
 516 ## ----------------------------------------------------------------------
 517 ## git utility subroutines, invoking git commands
 518
 519 # get HEAD ref of given project as hash
 520 sub git_get_head_hash {
 521         my $project = shift;
 522         my $oENV = $ENV{'GIT_DIR'};
 523         my $retval = undef;
 524         $ENV{'GIT_DIR'} = "$projectroot/$project";
 525         if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 526                 my $head = <$fd>;
 527                 close $fd;
 528                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 529                         $retval = $1;
 530                 }
 531         }
 532         if (defined $oENV) {
 533                 $ENV{'GIT_DIR'} = $oENV;
 534         }
 535         return $retval;
 536 }
 537
 538 # get type of given object
 539 sub git_get_type {
 540         my $hash = shift;
 541
 542         open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 543         my $type = <$fd>;
 544         close $fd or return;
 545         chomp $type;
 546         return $type;
 547 }
 548
 549 sub git_get_project_config {
 550         my ($key, $type) = @_;
 551
 552         return unless ($key);
 553         $key =~ s/^gitweb\.//;
 554         return if ($key =~ m/\W/);
 555
 556         my @x = ($GIT, 'repo-config');
 557         if (defined $type) { push @x, $type; }
 558         push @x, "--get";
 559         push @x, "gitweb.$key";
 560         my $val = qx(@x);
 561         chomp $val;
 562         return ($val);
 563 }
 564
 565 # get hash of given path at given ref
 566 sub git_get_hash_by_path {
 567         my $base = shift;
 568         my $path = shift || return undef;
 569
 570         my $tree = $base;
 571
 572         open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
 573                 or die_error(undef, "Open git-ls-tree failed");
 574         my $line = <$fd>;
 575         close $fd or return undef;
 576
 577         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 578         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 579         return $3;
 580 }
 581
 582 ## ......................................................................
 583 ## git utility functions, directly accessing git repository
 584
 585 # assumes that PATH is not symref
 586 sub git_get_hash_by_ref {
 587         my $path = shift;
 588
 589         open my $fd, "$projectroot/$path" or return undef;
 590         my $head = <$fd>;
 591         close $fd;
 592         chomp $head;
 593         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 594                 return $head;
 595         }
 596 }
 597
 598 sub git_get_project_description {
 599         my $path = shift;
 600
 601         open my $fd, "$projectroot/$path/description" or return undef;
 602         my $descr = <$fd>;
 603         close $fd;
 604         chomp $descr;
 605         return $descr;
 606 }
 607
 608 sub git_get_project_url_list {
 609         my $path = shift;
 610
 611         open my $fd, "$projectroot/$path/cloneurl" or return undef;
 612         my @git_project_url_list = map { chomp; $_ } <$fd>;
 613         close $fd;
 614
 615         return wantarray ? @git_project_url_list : \@git_project_url_list;
 616 }
 617
 618 sub git_get_projects_list {
 619         my @list;
 620
 621         if (-d $projects_list) {
 622                 # search in directory
 623                 my $dir = $projects_list;
 624                 opendir my ($dh), $dir or return undef;
 625                 while (my $dir = readdir($dh)) {
 626                         if (-e "$projectroot/$dir/HEAD") {
 627                                 my $pr = {
 628                                         path => $dir,
 629                                 };
 630                                 push @list, $pr
 631                         }
 632                 }
 633                 closedir($dh);
 634         } elsif (-f $projects_list) {
 635                 # read from file(url-encoded):
 636                 # 'git%2Fgit.git Linus+Torvalds'
 637                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 638                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 639                 open my ($fd), $projects_list or return undef;
 640                 while (my $line = <$fd>) {
 641                         chomp $line;
 642                         my ($path, $owner) = split ' ', $line;
 643                         $path = unescape($path);
 644                         $owner = unescape($owner);
 645                         if (!defined $path) {
 646                                 next;
 647                         }
 648                         if (-e "$projectroot/$path/HEAD") {
 649                                 my $pr = {
 650                                         path => $path,
 651                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 652                                 };
 653                                 push @list, $pr
 654                         }
 655                 }
 656                 close $fd;
 657         }
 658         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 659         return @list;
 660 }
 661
 662 sub git_get_project_owner {
 663         my $project = shift;
 664         my $owner;
 665
 666         return undef unless $project;
 667
 668         # read from file (url-encoded):
 669         # 'git%2Fgit.git Linus+Torvalds'
 670         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 671         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 672         if (-f $projects_list) {
 673                 open (my $fd , $projects_list);
 674                 while (my $line = <$fd>) {
 675                         chomp $line;
 676                         my ($pr, $ow) = split ' ', $line;
 677                         $pr = unescape($pr);
 678                         $ow = unescape($ow);
 679                         if ($pr eq $project) {
 680                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 681                                 last;
 682                         }
 683                 }
 684                 close $fd;
 685         }
 686         if (!defined $owner) {
 687                 $owner = get_file_owner("$projectroot/$project");
 688         }
 689
 690         return $owner;
 691 }
 692
 693 sub git_get_references {
 694         my $type = shift || "";
 695         my %refs;
 696         my $fd;
 697         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 698         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 699         if (-f "$projectroot/$project/info/refs") {
 700                 open $fd, "$projectroot/$project/info/refs"
 701                         or return;
 702         } else {
 703                 open $fd, "-|", $GIT, "ls-remote", "."
 704                         or return;
 705         }
 706
 707         while (my $line = <$fd>) {
 708                 chomp $line;
 709                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 710                         if (defined $refs{$1}) {
 711                                 push @{$refs{$1}}, $2;
 712                         } else {
 713                                 $refs{$1} = [ $2 ];
 714                         }
 715                 }
 716         }
 717         close $fd or return;
 718         return \%refs;
 719 }
 720
 721 ## ----------------------------------------------------------------------
 722 ## parse to hash functions
 723
 724 sub parse_date {
 725         my $epoch = shift;
 726         my $tz = shift || "-0000";
 727
 728         my %date;
 729         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 730         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 731         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 732         $date{'hour'} = $hour;
 733         $date{'minute'} = $min;
 734         $date{'mday'} = $mday;
 735         $date{'day'} = $days[$wday];
 736         $date{'month'} = $months[$mon];
 737         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 738         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 739
 740         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 741         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 742         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 743         $date{'hour_local'} = $hour;
 744         $date{'minute_local'} = $min;
 745         $date{'tz_local'} = $tz;
 746         return %date;
 747 }
 748
 749 sub parse_tag {
 750         my $tag_id = shift;
 751         my %tag;
 752         my @comment;
 753
 754         open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 755         $tag{'id'} = $tag_id;
 756         while (my $line = <$fd>) {
 757                 chomp $line;
 758                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 759                         $tag{'object'} = $1;
 760                 } elsif ($line =~ m/^type (.+)$/) {
 761                         $tag{'type'} = $1;
 762                 } elsif ($line =~ m/^tag (.+)$/) {
 763                         $tag{'name'} = $1;
 764                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 765                         $tag{'author'} = $1;
 766                         $tag{'epoch'} = $2;
 767                         $tag{'tz'} = $3;
 768                 } elsif ($line =~ m/--BEGIN/) {
 769                         push @comment, $line;
 770                         last;
 771                 } elsif ($line eq "") {
 772                         last;
 773                 }
 774         }
 775         push @comment, <$fd>;
 776         $tag{'comment'} = \@comment;
 777         close $fd or return;
 778         if (!defined $tag{'name'}) {
 779                 return
 780         };
 781         return %tag
 782 }
 783
 784 sub parse_commit {
 785         my $commit_id = shift;
 786         my $commit_text = shift;
 787
 788         my @commit_lines;
 789         my %co;
 790
 791         if (defined $commit_text) {
 792                 @commit_lines = @$commit_text;
 793         } else {
 794                 $/ = "\0";
 795                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
 796                 @commit_lines = split '\n', <$fd>;
 797                 close $fd or return;
 798                 $/ = "\n";
 799                 pop @commit_lines;
 800         }
 801         my $header = shift @commit_lines;
 802         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 803                 return;
 804         }
 805         ($co{'id'}, my @parents) = split ' ', $header;
 806         $co{'parents'} = \@parents;
 807         $co{'parent'} = $parents[0];
 808         while (my $line = shift @commit_lines) {
 809                 last if $line eq "\n";
 810                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 811                         $co{'tree'} = $1;
 812                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 813                         $co{'author'} = $1;
 814                         $co{'author_epoch'} = $2;
 815                         $co{'author_tz'} = $3;
 816                         if ($co{'author'} =~ m/^([^<]+) </) {
 817                                 $co{'author_name'} = $1;
 818                         } else {
 819                                 $co{'author_name'} = $co{'author'};
 820                         }
 821                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 822                         $co{'committer'} = $1;
 823                         $co{'committer_epoch'} = $2;
 824                         $co{'committer_tz'} = $3;
 825                         $co{'committer_name'} = $co{'committer'};
 826                         $co{'committer_name'} =~ s/ <.*//;
 827                 }
 828         }
 829         if (!defined $co{'tree'}) {
 830                 return;
 831         };
 832
 833         foreach my $title (@commit_lines) {
 834                 $title =~ s/^    //;
 835                 if ($title ne "") {
 836                         $co{'title'} = chop_str($title, 80, 5);
 837                         # remove leading stuff of merges to make the interesting part visible
 838                         if (length($title) > 50) {
 839                                 $title =~ s/^Automatic //;
 840                                 $title =~ s/^merge (of|with) /Merge ... /i;
 841                                 if (length($title) > 50) {
 842                                         $title =~ s/(http|rsync):\/\///;
 843                                 }
 844                                 if (length($title) > 50) {
 845                                         $title =~ s/(master|www|rsync)\.//;
 846                                 }
 847                                 if (length($title) > 50) {
 848                                         $title =~ s/kernel.org:?//;
 849                                 }
 850                                 if (length($title) > 50) {
 851                                         $title =~ s/\/pub\/scm//;
 852                                 }
 853                         }
 854                         $co{'title_short'} = chop_str($title, 50, 5);
 855                         last;
 856                 }
 857         }
 858         # remove added spaces
 859         foreach my $line (@commit_lines) {
 860                 $line =~ s/^    //;
 861         }
 862         $co{'comment'} = \@commit_lines;
 863
 864         my $age = time - $co{'committer_epoch'};
 865         $co{'age'} = $age;
 866         $co{'age_string'} = age_string($age);
 867         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 868         if ($age > 60*60*24*7*2) {
 869                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 870                 $co{'age_string_age'} = $co{'age_string'};
 871         } else {
 872                 $co{'age_string_date'} = $co{'age_string'};
 873                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 874         }
 875         return %co;
 876 }
 877
 878 # parse ref from ref_file, given by ref_id, with given type
 879 sub parse_ref {
 880         my $ref_file = shift;
 881         my $ref_id = shift;
 882         my $type = shift || git_get_type($ref_id);
 883         my %ref_item;
 884
 885         $ref_item{'type'} = $type;
 886         $ref_item{'id'} = $ref_id;
 887         $ref_item{'epoch'} = 0;
 888         $ref_item{'age'} = "unknown";
 889         if ($type eq "tag") {
 890                 my %tag = parse_tag($ref_id);
 891                 $ref_item{'comment'} = $tag{'comment'};
 892                 if ($tag{'type'} eq "commit") {
 893                         my %co = parse_commit($tag{'object'});
 894                         $ref_item{'epoch'} = $co{'committer_epoch'};
 895                         $ref_item{'age'} = $co{'age_string'};
 896                 } elsif (defined($tag{'epoch'})) {
 897                         my $age = time - $tag{'epoch'};
 898                         $ref_item{'epoch'} = $tag{'epoch'};
 899                         $ref_item{'age'} = age_string($age);
 900                 }
 901                 $ref_item{'reftype'} = $tag{'type'};
 902                 $ref_item{'name'} = $tag{'name'};
 903                 $ref_item{'refid'} = $tag{'object'};
 904         } elsif ($type eq "commit"){
 905                 my %co = parse_commit($ref_id);
 906                 $ref_item{'reftype'} = "commit";
 907                 $ref_item{'name'} = $ref_file;
 908                 $ref_item{'title'} = $co{'title'};
 909                 $ref_item{'refid'} = $ref_id;
 910                 $ref_item{'epoch'} = $co{'committer_epoch'};
 911                 $ref_item{'age'} = $co{'age_string'};
 912         } else {
 913                 $ref_item{'reftype'} = $type;
 914                 $ref_item{'name'} = $ref_file;
 915                 $ref_item{'refid'} = $ref_id;
 916         }
 917
 918         return %ref_item;
 919 }
 920
 921 sub parse_difftree_raw_line {
 922         my $line = shift;
 923         my %res;
 924
 925         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
 926         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
 927         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
 928                 $res{'from_mode'} = $1;
 929                 $res{'to_mode'} = $2;
 930                 $res{'from_id'} = $3;
 931                 $res{'to_id'} = $4;
 932                 $res{'status'} = $5;
 933                 $res{'similarity'} = $6;
 934                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
 935                         ($res{'from_file'}, $res{'to_file'}) = map(unquote, split("\t", $7));
 936                 } else {
 937                         $res{'file'} = unquote($7);
 938                 }
 939         }
 940         # 'c512b523472485aef4fff9e57b229d9d243c967f'
 941         #elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
 942         #       $res{'commit'} = $1;
 943         #}
 944
 945         return wantarray ? %res : \%res;
 946 }
 947
 948 ## ......................................................................
 949 ## parse to array of hashes functions
 950
 951 sub git_get_refs_list {
 952         my $ref_dir = shift;
 953         my @reflist;
 954
 955         my @refs;
 956         my $pfxlen = length("$projectroot/$project/$ref_dir");
 957         File::Find::find(sub {
 958                 return if (/^\./);
 959                 if (-f $_) {
 960                         push @refs, substr($File::Find::name, $pfxlen + 1);
 961                 }
 962         }, "$projectroot/$project/$ref_dir");
 963
 964         foreach my $ref_file (@refs) {
 965                 my $ref_id = git_get_hash_by_ref("$project/$ref_dir/$ref_file");
 966                 my $type = git_get_type($ref_id) || next;
 967                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
 968
 969                 push @reflist, \%ref_item;
 970         }
 971         # sort refs by age
 972         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
 973         return \@reflist;
 974 }
 975
 976 ## ----------------------------------------------------------------------
 977 ## filesystem-related functions
 978
 979 sub get_file_owner {
 980         my $path = shift;
 981
 982         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 983         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 984         if (!defined $gcos) {
 985                 return undef;
 986         }
 987         my $owner = $gcos;
 988         $owner =~ s/[,;].*$//;
 989         return decode("utf8", $owner, Encode::FB_DEFAULT);
 990 }
 991
 992 ## ......................................................................
 993 ## mimetype related functions
 994
 995 sub mimetype_guess_file {
 996         my $filename = shift;
 997         my $mimemap = shift;
 998         -r $mimemap or return undef;
 999
1000         my %mimemap;
1001         open(MIME, $mimemap) or return undef;
1002         while (<MIME>) {
1003                 next if m/^#/; # skip comments
1004                 my ($mime, $exts) = split(/\t+/);
1005                 if (defined $exts) {
1006                         my @exts = split(/\s+/, $exts);
1007                         foreach my $ext (@exts) {
1008                                 $mimemap{$ext} = $mime;
1009                         }
1010                 }
1011         }
1012         close(MIME);
1013
1014         $filename =~ /\.(.*?)$/;
1015         return $mimemap{$1};
1016 }
1017
1018 sub mimetype_guess {
1019         my $filename = shift;
1020         my $mime;
1021         $filename =~ /\./ or return undef;
1022
1023         if ($mimetypes_file) {
1024                 my $file = $mimetypes_file;
1025                 if ($file !~ m!^/!) { # if it is relative path
1026                         # it is relative to project
1027                         $file = "$projectroot/$project/$file";
1028                 }
1029                 $mime = mimetype_guess_file($filename, $file);
1030         }
1031         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1032         return $mime;
1033 }
1034
1035 sub blob_mimetype {
1036         my $fd = shift;
1037         my $filename = shift;
1038
1039         if ($filename) {
1040                 my $mime = mimetype_guess($filename);
1041                 $mime and return $mime;
1042         }
1043
1044         # just in case
1045         return $default_blob_plain_mimetype unless $fd;
1046
1047         if (-T $fd) {
1048                 return 'text/plain' .
1049                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1050         } elsif (! $filename) {
1051                 return 'application/octet-stream';
1052         } elsif ($filename =~ m/\.png$/i) {
1053                 return 'image/png';
1054         } elsif ($filename =~ m/\.gif$/i) {
1055                 return 'image/gif';
1056         } elsif ($filename =~ m/\.jpe?g$/i) {
1057                 return 'image/jpeg';
1058         } else {
1059                 return 'application/octet-stream';
1060         }
1061 }
1062
1063 ## ======================================================================
1064 ## functions printing HTML: header, footer, error page
1065
1066 sub git_header_html {
1067         my $status = shift || "200 OK";
1068         my $expires = shift;
1069
1070         my $title = "$site_name git";
1071         if (defined $project) {
1072                 $title .= " - $project";
1073                 if (defined $action) {
1074                         $title .= "/$action";
1075                         if (defined $file_name) {
1076                                 $title .= " - $file_name";
1077                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1078                                         $title .= "/";
1079                                 }
1080                         }
1081                 }
1082         }
1083         my $content_type;
1084         # require explicit support from the UA if we are to send the page as
1085         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1086         # we have to do this because MSIE sometimes globs '*/*', pretending to
1087         # support xhtml+xml but choking when it gets what it asked for.
1088         if (defined $cgi->http('HTTP_ACCEPT') && $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ && $cgi->Accept('application/xhtml+xml') != 0) {
1089                 $content_type = 'application/xhtml+xml';
1090         } else {
1091                 $content_type = 'text/html';
1092         }
1093         print $cgi->header(-type=>$content_type, -charset => 'utf-8', -status=> $status, -expires => $expires);
1094         print <<EOF;
1095 <?xml version="1.0" encoding="utf-8"?>
1096 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1097 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1098 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1099 <!-- git core binaries version $git_version -->
1100 <head>
1101 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1102 <meta name="generator" content="gitweb/$version git/$git_version"/>
1103 <meta name="robots" content="index, nofollow"/>
1104 <title>$title</title>
1105 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
1106 EOF
1107         if (defined $project) {
1108                 printf('<link rel="alternate" title="%s log" '.
1109                        'href="%s" type="application/rss+xml"/>'."\n",
1110                        esc_param($project), href(action=>"rss"));
1111         }
1112
1113         print "</head>\n" .
1114               "<body>\n" .
1115               "<div class=\"page_header\">\n" .
1116               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1117               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1118               "</a>\n";
1119         print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1120         if (defined $project) {
1121                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1122                 if (defined $action) {
1123                         print " / $action";
1124                 }
1125                 print "\n";
1126                 if (!defined $searchtext) {
1127                         $searchtext = "";
1128                 }
1129                 my $search_hash;
1130                 if (defined $hash_base) {
1131                         $search_hash = $hash_base;
1132                 } elsif (defined $hash) {
1133                         $search_hash = $hash;
1134                 } else {
1135                         $search_hash = "HEAD";
1136                 }
1137                 $cgi->param("a", "search");
1138                 $cgi->param("h", $search_hash);
1139                 print $cgi->startform(-method => "get", -action => $my_uri) .
1140                       "<div class=\"search\">\n" .
1141                       $cgi->hidden(-name => "p") . "\n" .
1142                       $cgi->hidden(-name => "a") . "\n" .
1143                       $cgi->hidden(-name => "h") . "\n" .
1144                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1145                       "</div>" .
1146                       $cgi->end_form() . "\n";
1147         }
1148         print "</div>\n";
1149 }
1150
1151 sub git_footer_html {
1152         print "<div class=\"page_footer\">\n";
1153         if (defined $project) {
1154                 my $descr = git_get_project_description($project);
1155                 if (defined $descr) {
1156                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1157                 }
1158                 print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
1159         } else {
1160                 print $cgi->a({-href => href(action=>"opml"), -class => "rss_logo"}, "OPML") . "\n";
1161         }
1162         print "</div>\n" .
1163               "</body>\n" .
1164               "</html>";
1165 }
1166
1167 sub die_error {
1168         my $status = shift || "403 Forbidden";
1169         my $error = shift || "Malformed query, file missing or permission denied";
1170
1171         git_header_html($status);
1172         print "<div class=\"page_body\">\n" .
1173               "<br/><br/>\n" .
1174               "$status - $error\n" .
1175               "<br/>\n" .
1176               "</div>\n";
1177         git_footer_html();
1178         exit;
1179 }
1180
1181 ## ----------------------------------------------------------------------
1182 ## functions printing or outputting HTML: navigation
1183
1184 sub git_print_page_nav {
1185         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1186         $extra = '' if !defined $extra; # pager or formats
1187
1188         my @navs = qw(summary shortlog log commit commitdiff tree);
1189         if ($suppress) {
1190                 @navs = grep { $_ ne $suppress } @navs;
1191         }
1192
1193         my %arg = map { $_ => {action=>$_} } @navs;
1194         if (defined $head) {
1195                 for (qw(commit commitdiff)) {
1196                         $arg{$_}{hash} = $head;
1197                 }
1198                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1199                         for (qw(shortlog log)) {
1200                                 $arg{$_}{hash} = $head;
1201                         }
1202                 }
1203         }
1204         $arg{tree}{hash} = $treehead if defined $treehead;
1205         $arg{tree}{hash_base} = $treebase if defined $treebase;
1206
1207         print "<div class=\"page_nav\">\n" .
1208                 (join " | ",
1209                  map { $_ eq $current ?
1210                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1211                  } @navs);
1212         print "<br/>\n$extra<br/>\n" .
1213               "</div>\n";
1214 }
1215
1216 sub format_paging_nav {
1217         my ($action, $hash, $head, $page, $nrevs) = @_;
1218         my $paging_nav;
1219
1220
1221         if ($hash ne $head || $page) {
1222                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1223         } else {
1224                 $paging_nav .= "HEAD";
1225         }
1226
1227         if ($page > 0) {
1228                 $paging_nav .= " &sdot; " .
1229                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1230                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1231         } else {
1232                 $paging_nav .= " &sdot; prev";
1233         }
1234
1235         if ($nrevs >= (100 * ($page+1)-1)) {
1236                 $paging_nav .= " &sdot; " .
1237                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1238                                  -accesskey => "n", -title => "Alt-n"}, "next");
1239         } else {
1240                 $paging_nav .= " &sdot; next";
1241         }
1242
1243         return $paging_nav;
1244 }
1245
1246 ## ......................................................................
1247 ## functions printing or outputting HTML: div
1248
1249 sub git_print_header_div {
1250         my ($action, $title, $hash, $hash_base) = @_;
1251         my %args = ();
1252
1253         $args{action} = $action;
1254         $args{hash} = $hash if $hash;
1255         $args{hash_base} = $hash_base if $hash_base;
1256
1257         print "<div class=\"header\">\n" .
1258               $cgi->a({-href => href(%args), -class => "title"},
1259               $title ? $title : $action) .
1260               "\n</div>\n";
1261 }
1262
1263 sub git_print_page_path {
1264         my $name = shift;
1265         my $type = shift;
1266         my $hb = shift;
1267
1268         if (!defined $name) {
1269                 print "<div class=\"page_path\"><b>/</b></div>\n";
1270         } elsif (defined $type && $type eq 'blob') {
1271                 print "<div class=\"page_path\"><b>";
1272                 if (defined $hb) {
1273                         print $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hb, file_name=>$file_name)}, esc_html($name));
1274                 } else {
1275                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)}, esc_html($name));
1276                 }
1277                 print "</b><br/></div>\n";
1278         } else {
1279                 print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
1280         }
1281 }
1282
1283 sub git_print_log {
1284         my $log = shift;
1285
1286         # remove leading empty lines
1287         while (defined $log->[0] && $log->[0] eq "") {
1288                 shift @$log;
1289         }
1290
1291         # print log
1292         my $signoff = 0;
1293         my $empty = 0;
1294         foreach my $line (@$log) {
1295                 # print only one empty line
1296                 # do not print empty line after signoff
1297                 if ($line eq "") {
1298                         next if ($empty || $signoff);
1299                         $empty = 1;
1300                 } else {
1301                         $empty = 0;
1302                 }
1303                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1304                         $signoff = 1;
1305                         print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1306                 } else {
1307                         $signoff = 0;
1308                         print format_log_line_html($line) . "<br/>\n";
1309                 }
1310         }
1311 }
1312
1313 sub git_print_simplified_log {
1314         my $log = shift;
1315         my $remove_title = shift;
1316
1317         shift @$log if $remove_title;
1318         # remove leading empty lines
1319         while (defined $log->[0] && $log->[0] eq "") {
1320                 shift @$log;
1321         }
1322
1323         # simplify and print log
1324         my $empty = 0;
1325         foreach my $line (@$log) {
1326                 # remove signoff lines
1327                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1328                         next;
1329                 }
1330                 # print only one empty line
1331                 if ($line eq "") {
1332                         next if $empty;
1333                         $empty = 1;
1334                 } else {
1335                         $empty = 0;
1336                 }
1337                 print format_log_line_html($line) . "<br/>\n";
1338         }
1339         # end with single empty line
1340         print "<br/>\n" unless $empty;
1341 }
1342
1343 ## ......................................................................
1344 ## functions printing large fragments of HTML
1345
1346 sub git_difftree_body {
1347         my ($difftree, $parent) = @_;
1348
1349         print "<div class=\"list_head\">\n";
1350         if ($#{$difftree} > 10) {
1351                 print(($#{$difftree} + 1) . " files changed:\n");
1352         }
1353         print "</div>\n";
1354
1355         print "<table class=\"diff_tree\">\n";
1356         my $alternate = 0;
1357         foreach my $line (@{$difftree}) {
1358                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1359                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1360                 if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1361                         next;
1362                 }
1363                 my $from_mode = $1;
1364                 my $to_mode = $2;
1365                 my $from_id = $3;
1366                 my $to_id = $4;
1367                 my $status = $5;
1368                 my $similarity = $6; # score
1369                 my $file = validate_input(unquote($7));
1370
1371                 if ($alternate) {
1372                         print "<tr class=\"dark\">\n";
1373                 } else {
1374                         print "<tr class=\"light\">\n";
1375                 }
1376                 $alternate ^= 1;
1377
1378                 if ($status eq "A") { # created
1379                         my $mode_chng = "";
1380                         if (S_ISREG(oct $to_mode)) {
1381                                 $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
1382                         }
1383                         print "<td>" .
1384                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
1385                                       -class => "list"}, esc_html($file)) .
1386                               "</td>\n" .
1387                               "<td><span class=\"file_status new\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
1388                               "<td class=\"link\">" .
1389                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob") .
1390                               "</td>\n";
1391
1392                 } elsif ($status eq "D") { # deleted
1393                         print "<td>" .
1394                               $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file),
1395                                        -class => "list"}, esc_html($file)) . "</td>\n" .
1396                               "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
1397                               "<td class=\"link\">" .
1398                               $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file)}, "blob") . " | " .
1399                               $cgi->a({-href => href(action=>"history", hash_base=>$parent, file_name=>$file)}, "history") .
1400                               "</td>\n"
1401
1402                 } elsif ($status eq "M" || $status eq "T") { # modified, or type changed
1403                         my $mode_chnge = "";
1404                         if ($from_mode != $to_mode) {
1405                                 $mode_chnge = " <span class=\"file_status mode_chnge\">[changed";
1406                                 if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
1407                                         $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
1408                                 }
1409                                 if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
1410                                         if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
1411                                                 $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
1412                                         } elsif (S_ISREG($to_mode)) {
1413                                                 $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
1414                                         }
1415                                 }
1416                                 $mode_chnge .= "]</span>\n";
1417                         }
1418                         print "<td>";
1419                         if ($to_id ne $from_id) { # modified
1420                                 print $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$file),
1421                                               -class => "list"}, esc_html($file));
1422                         } else { # mode changed
1423                                 print $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
1424                                               -class => "list"}, esc_html($file));
1425                         }
1426                         print "</td>\n" .
1427                               "<td>$mode_chnge</td>\n" .
1428                               "<td class=\"link\">" .
1429                                 $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob");
1430                         if ($to_id ne $from_id) { # modified
1431                                 print " | " . $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$file)}, "diff");
1432                         }
1433                         print " | " . $cgi->a({-href => href(action=>"history", hash_base=>$hash, file_name=>$file)}, "history") . "\n";
1434                         print "</td>\n";
1435
1436                 } elsif ($status eq "R") { # renamed
1437                         my ($from_file, $to_file) = split "\t", $file;
1438                         my $mode_chng = "";
1439                         if ($from_mode != $to_mode) {
1440                                 $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1441                         }
1442                         print "<td>" .
1443                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
1444                                       -class => "list"}, esc_html($to_file)) . "</td>\n" .
1445                               "<td><span class=\"file_status moved\">[moved from " .
1446                               $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
1447                                       -class => "list"}, esc_html($from_file)) .
1448                               " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1449                               "<td class=\"link\">" .
1450                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
1451                         if ($to_id ne $from_id) {
1452                                 print " | " .
1453                                       $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$to_file, file_parent=>$from_file)}, "diff");
1454                         }
1455                         print "</td>\n";
1456
1457                 } elsif ($status eq "C") { # copied
1458                         my ($from_file, $to_file) = split "\t", $file;
1459                         my $mode_chng = "";
1460                         if ($from_mode != $to_mode) {
1461                                 $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1462                         }
1463                         print "<td>" .
1464                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
1465                                       -class => "list"}, esc_html($to_file)) . "</td>\n" .
1466                               "<td><span class=\"file_status copied\">[copied from " .
1467                               $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
1468                                       -class => "list"}, esc_html($from_file)) .
1469                               " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1470                               "<td class=\"link\">" .
1471                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
1472                         if ($to_id ne $from_id) {
1473                                 print " | " .
1474                                       $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$to_file, file_parent=>$from_file)}, "diff");
1475                         }
1476                         print "</td>\n";
1477                 } # we should not encounter Unmerged (U) or Unknown (X) status
1478                 print "</tr>\n";
1479         }
1480         print "</table>\n";
1481 }
1482
1483 sub git_shortlog_body {
1484         # uses global variable $project
1485         my ($revlist, $from, $to, $refs, $extra) = @_;
1486
1487         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
1488         my $have_snapshot = (defined $ctype && defined $suffix);
1489
1490         $from = 0 unless defined $from;
1491         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1492
1493         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1494         my $alternate = 0;
1495         for (my $i = $from; $i <= $to; $i++) {
1496                 my $commit = $revlist->[$i];
1497                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1498                 my $ref = format_ref_marker($refs, $commit);
1499                 my %co = parse_commit($commit);
1500                 if ($alternate) {
1501                         print "<tr class=\"dark\">\n";
1502                 } else {
1503                         print "<tr class=\"light\">\n";
1504                 }
1505                 $alternate ^= 1;
1506                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1507                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1508                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1509                       "<td>";
1510                 print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
1511                 print "</td>\n" .
1512                       "<td class=\"link\">" .
1513                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1514                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
1515                 if ($have_snapshot) {
1516                         print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
1517                 }
1518                 print "</td>\n" .
1519                       "</tr>\n";
1520         }
1521         if (defined $extra) {
1522                 print "<tr>\n" .
1523                       "<td colspan=\"4\">$extra</td>\n" .
1524                       "</tr>\n";
1525         }
1526         print "</table>\n";
1527 }
1528
1529 sub git_history_body {
1530         # Warning: assumes constant type (blob or tree) during history
1531         my ($fd, $refs, $hash_base, $ftype, $extra) = @_;
1532
1533         print "<table class=\"history\" cellspacing=\"0\">\n";
1534         my $alternate = 0;
1535         while (my $line = <$fd>) {
1536                 if ($line !~ m/^([0-9a-fA-F]{40})/) {
1537                         next;
1538                 }
1539
1540                 my $commit = $1;
1541                 my %co = parse_commit($commit);
1542                 if (!%co) {
1543                         next;
1544                 }
1545
1546                 my $ref = format_ref_marker($refs, $commit);
1547
1548                 if ($alternate) {
1549                         print "<tr class=\"dark\">\n";
1550                 } else {
1551                         print "<tr class=\"light\">\n";
1552                 }
1553                 $alternate ^= 1;
1554                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1555                       # shortlog uses      chop_str($co{'author_name'}, 10)
1556                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
1557                       "<td>";
1558                 # originally git_history used chop_str($co{'title'}, 50)
1559                 print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
1560                 print "</td>\n" .
1561                       "<td class=\"link\">" .
1562                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1563                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
1564                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
1565
1566                 if ($ftype eq 'blob') {
1567                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
1568                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
1569                         if (defined $blob_current && defined $blob_parent &&
1570                                         $blob_current ne $blob_parent) {
1571                                 print " | " .
1572                                         $cgi->a({-href => href(action=>"blobdiff", hash=>$blob_current, hash_parent=>$blob_parent, hash_base=>$commit, file_name=>$file_name)},
1573                                                 "diff to current");
1574                         }
1575                 }
1576                 print "</td>\n" .
1577                       "</tr>\n";
1578         }
1579         if (defined $extra) {
1580                 print "<tr>\n" .
1581                       "<td colspan=\"4\">$extra</td>\n" .
1582                       "</tr>\n";
1583         }
1584         print "</table>\n";
1585 }
1586
1587 sub git_tags_body {
1588         # uses global variable $project
1589         my ($taglist, $from, $to, $extra) = @_;
1590         $from = 0 unless defined $from;
1591         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1592
1593         print "<table class=\"tags\" cellspacing=\"0\">\n";
1594         my $alternate = 0;
1595         for (my $i = $from; $i <= $to; $i++) {
1596                 my $entry = $taglist->[$i];
1597                 my %tag = %$entry;
1598                 my $comment_lines = $tag{'comment'};
1599                 my $comment = shift @$comment_lines;
1600                 my $comment_short;
1601                 if (defined $comment) {
1602                         $comment_short = chop_str($comment, 30, 5);
1603                 }
1604                 if ($alternate) {
1605                         print "<tr class=\"dark\">\n";
1606                 } else {
1607                         print "<tr class=\"light\">\n";
1608                 }
1609                 $alternate ^= 1;
1610                 print "<td><i>$tag{'age'}</i></td>\n" .
1611                       "<td>" .
1612                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
1613                                -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1614                       "</td>\n" .
1615                       "<td>";
1616                 if (defined $comment) {
1617                         print format_subject_html($comment, $comment_short, href(action=>"tag", hash=>$tag{'id'}));
1618                 }
1619                 print "</td>\n" .
1620                       "<td class=\"selflink\">";
1621                 if ($tag{'type'} eq "tag") {
1622                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
1623                 } else {
1624                         print "&nbsp;";
1625                 }
1626                 print "</td>\n" .
1627                       "<td class=\"link\">" . " | " .
1628                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
1629                 if ($tag{'reftype'} eq "commit") {
1630                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
1631                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
1632                 } elsif ($tag{'reftype'} eq "blob") {
1633                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
1634                 }
1635                 print "</td>\n" .
1636                       "</tr>";
1637         }
1638         if (defined $extra) {
1639                 print "<tr>\n" .
1640                       "<td colspan=\"5\">$extra</td>\n" .
1641                       "</tr>\n";
1642         }
1643         print "</table>\n";
1644 }
1645
1646 sub git_heads_body {
1647         # uses global variable $project
1648         my ($taglist, $head, $from, $to, $extra) = @_;
1649         $from = 0 unless defined $from;
1650         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1651
1652         print "<table class=\"heads\" cellspacing=\"0\">\n";
1653         my $alternate = 0;
1654         for (my $i = $from; $i <= $to; $i++) {
1655                 my $entry = $taglist->[$i];
1656                 my %tag = %$entry;
1657                 my $curr = $tag{'id'} eq $head;
1658                 if ($alternate) {
1659                         print "<tr class=\"dark\">\n";
1660                 } else {
1661                         print "<tr class=\"light\">\n";
1662                 }
1663                 $alternate ^= 1;
1664                 print "<td><i>$tag{'age'}</i></td>\n" .
1665                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
1666                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
1667                                -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1668                       "</td>\n" .
1669                       "<td class=\"link\">" .
1670                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
1671                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
1672                       "</td>\n" .
1673                       "</tr>";
1674         }
1675         if (defined $extra) {
1676                 print "<tr>\n" .
1677                       "<td colspan=\"3\">$extra</td>\n" .
1678                       "</tr>\n";
1679         }
1680         print "</table>\n";
1681 }
1682
1683 ## ----------------------------------------------------------------------
1684 ## functions printing large fragments, format as one of arguments
1685
1686 sub git_diff_print {
1687         my $from = shift;
1688         my $from_name = shift;
1689         my $to = shift;
1690         my $to_name = shift;
1691         my $format = shift || "html";
1692
1693         my $from_tmp = "/dev/null";
1694         my $to_tmp = "/dev/null";
1695         my $pid = $$;
1696
1697         # create tmp from-file
1698         if (defined $from) {
1699                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
1700                 open my $fd2, "> $from_tmp";
1701                 open my $fd, "-|", $GIT, "cat-file", "blob", $from;
1702                 my @file = <$fd>;
1703                 print $fd2 @file;
1704                 close $fd2;
1705                 close $fd;
1706         }
1707
1708         # create tmp to-file
1709         if (defined $to) {
1710                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
1711                 open my $fd2, "> $to_tmp";
1712                 open my $fd, "-|", $GIT, "cat-file", "blob", $to;
1713                 my @file = <$fd>;
1714                 print $fd2 @file;
1715                 close $fd2;
1716                 close $fd;
1717         }
1718
1719         open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
1720         if ($format eq "plain") {
1721                 undef $/;
1722                 print <$fd>;
1723                 $/ = "\n";
1724         } else {
1725                 while (my $line = <$fd>) {
1726                         chomp $line;
1727                         my $char = substr($line, 0, 1);
1728                         my $diff_class = "";
1729                         if ($char eq '+') {
1730                                 $diff_class = " add";
1731                         } elsif ($char eq "-") {
1732                                 $diff_class = " rem";
1733                         } elsif ($char eq "@") {
1734                                 $diff_class = " chunk_header";
1735                         } elsif ($char eq "\\") {
1736                                 # skip errors
1737                                 next;
1738                         }
1739                         $line = untabify($line);
1740                         print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
1741                 }
1742         }
1743         close $fd;
1744
1745         if (defined $from) {
1746                 unlink($from_tmp);
1747         }
1748         if (defined $to) {
1749                 unlink($to_tmp);
1750         }
1751 }
1752
1753
1754 ## ======================================================================
1755 ## ======================================================================
1756 ## actions
1757
1758 sub git_project_list {
1759         my $order = $cgi->param('o');
1760         if (defined $order && $order !~ m/project|descr|owner|age/) {
1761                 die_error(undef, "Unknown order parameter");
1762         }
1763
1764         my @list = git_get_projects_list();
1765         my @projects;
1766         if (!@list) {
1767                 die_error(undef, "No projects found");
1768         }
1769         foreach my $pr (@list) {
1770                 my $head = git_get_head_hash($pr->{'path'});
1771                 if (!defined $head) {
1772                         next;
1773                 }
1774                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
1775                 my %co = parse_commit($head);
1776                 if (!%co) {
1777                         next;
1778                 }
1779                 $pr->{'commit'} = \%co;
1780                 if (!defined $pr->{'descr'}) {
1781                         my $descr = git_get_project_description($pr->{'path'}) || "";
1782                         $pr->{'descr'} = chop_str($descr, 25, 5);
1783                 }
1784                 if (!defined $pr->{'owner'}) {
1785                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
1786                 }
1787                 push @projects, $pr;
1788         }
1789
1790         git_header_html();
1791         if (-f $home_text) {
1792                 print "<div class=\"index_include\">\n";
1793                 open (my $fd, $home_text);
1794                 print <$fd>;
1795                 close $fd;
1796                 print "</div>\n";
1797         }
1798         print "<table class=\"project_list\">\n" .
1799               "<tr>\n";
1800         $order ||= "project";
1801         if ($order eq "project") {
1802                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
1803                 print "<th>Project</th>\n";
1804         } else {
1805                 print "<th>" .
1806                       $cgi->a({-href => "$my_uri?" . esc_param("o=project"),
1807                                -class => "header"}, "Project") .
1808                       "</th>\n";
1809         }
1810         if ($order eq "descr") {
1811                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
1812                 print "<th>Description</th>\n";
1813         } else {
1814                 print "<th>" .
1815                       $cgi->a({-href => "$my_uri?" . esc_param("o=descr"),
1816                                -class => "header"}, "Description") .
1817                       "</th>\n";
1818         }
1819         if ($order eq "owner") {
1820                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
1821                 print "<th>Owner</th>\n";
1822         } else {
1823                 print "<th>" .
1824                       $cgi->a({-href => "$my_uri?" . esc_param("o=owner"),
1825                                -class => "header"}, "Owner") .
1826                       "</th>\n";
1827         }
1828         if ($order eq "age") {
1829                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
1830                 print "<th>Last Change</th>\n";
1831         } else {
1832                 print "<th>" .
1833                       $cgi->a({-href => "$my_uri?" . esc_param("o=age"),
1834                                -class => "header"}, "Last Change") .
1835                       "</th>\n";
1836         }
1837         print "<th></th>\n" .
1838               "</tr>\n";
1839         my $alternate = 0;
1840         foreach my $pr (@projects) {
1841                 if ($alternate) {
1842                         print "<tr class=\"dark\">\n";
1843                 } else {
1844                         print "<tr class=\"light\">\n";
1845                 }
1846                 $alternate ^= 1;
1847                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
1848                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
1849                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
1850                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
1851                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
1852                       $pr->{'commit'}{'age_string'} . "</td>\n" .
1853                       "<td class=\"link\">" .
1854                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
1855                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
1856                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
1857                       "</td>\n" .
1858                       "</tr>\n";
1859         }
1860         print "</table>\n";
1861         git_footer_html();
1862 }
1863
1864 sub git_summary {
1865         my $descr = git_get_project_description($project) || "none";
1866         my $head = git_get_head_hash($project);
1867         my %co = parse_commit($head);
1868         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
1869
1870         my $owner = git_get_project_owner($project);
1871
1872         my $refs = git_get_references();
1873         git_header_html();
1874         git_print_page_nav('summary','', $head);
1875
1876         print "<div class=\"title\">&nbsp;</div>\n";
1877         print "<table cellspacing=\"0\">\n" .
1878               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1879               "<tr><td>owner</td><td>$owner</td></tr>\n" .
1880               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
1881         # use per project git URL list in $projectroot/$project/cloneurl
1882         # or make project git URL from git base URL and project name
1883         my $url_tag = "URL";
1884         my @url_list = git_get_project_url_list($project);
1885         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
1886         foreach my $git_url (@url_list) {
1887                 next unless $git_url;
1888                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
1889                 $url_tag = "";
1890         }
1891         print "</table>\n";
1892
1893         open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_get_head_hash($project)
1894                 or die_error(undef, "Open git-rev-list failed");
1895         my @revlist = map { chomp; $_ } <$fd>;
1896         close $fd;
1897         git_print_header_div('shortlog');
1898         git_shortlog_body(\@revlist, 0, 15, $refs,
1899                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
1900
1901         my $taglist = git_get_refs_list("refs/tags");
1902         if (defined @$taglist) {
1903                 git_print_header_div('tags');
1904                 git_tags_body($taglist, 0, 15,
1905                               $cgi->a({-href => href(action=>"tags")}, "..."));
1906         }
1907
1908         my $headlist = git_get_refs_list("refs/heads");
1909         if (defined @$headlist) {
1910                 git_print_header_div('heads');
1911                 git_heads_body($headlist, $head, 0, 15,
1912                                $cgi->a({-href => href(action=>"heads")}, "..."));
1913         }
1914
1915         git_footer_html();
1916 }
1917
1918 sub git_tag {
1919         my $head = git_get_head_hash($project);
1920         git_header_html();
1921         git_print_page_nav('','', $head,undef,$head);
1922         my %tag = parse_tag($hash);
1923         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
1924         print "<div class=\"title_text\">\n" .
1925               "<table cellspacing=\"0\">\n" .
1926               "<tr>\n" .
1927               "<td>object</td>\n" .
1928               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'object'}) . "</td>\n" .
1929               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'type'}) . "</td>\n" .
1930               "</tr>\n";
1931         if (defined($tag{'author'})) {
1932                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
1933                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1934                 print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1935         }
1936         print "</table>\n\n" .
1937               "</div>\n";
1938         print "<div class=\"page_body\">";
1939         my $comment = $tag{'comment'};
1940         foreach my $line (@$comment) {
1941                 print esc_html($line) . "<br/>\n";
1942         }
1943         print "</div>\n";
1944         git_footer_html();
1945 }
1946
1947 sub git_blame2 {
1948         my $fd;
1949         my $ftype;
1950
1951         if (!gitweb_check_feature('blame')) {
1952                 die_error('403 Permission denied', "Permission denied");
1953         }
1954         die_error('404 Not Found', "File name not defined") if (!$file_name);
1955         $hash_base ||= git_get_head_hash($project);
1956         die_error(undef, "Couldn't find base commit") unless ($hash_base);
1957         my %co = parse_commit($hash_base)
1958                 or die_error(undef, "Reading commit failed");
1959         if (!defined $hash) {
1960                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1961                         or die_error(undef, "Error looking up file");
1962         }
1963         $ftype = git_get_type($hash);
1964         if ($ftype !~ "blob") {
1965                 die_error("400 Bad Request", "Object is not a blob");
1966         }
1967         open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
1968                 or die_error(undef, "Open git-blame failed");
1969         git_header_html();
1970         my $formats_nav =
1971                 $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
1972                 " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
1973         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1974         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
1975         git_print_page_path($file_name, $ftype, $hash_base);
1976         my @rev_color = (qw(light2 dark2));
1977         my $num_colors = scalar(@rev_color);
1978         my $current_color = 0;
1979         my $last_rev;
1980         print "<div class=\"page_body\">\n";
1981         print "<table class=\"blame\">\n";
1982         print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
1983         while (<$fd>) {
1984                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
1985                 my $full_rev = $1;
1986                 my $rev = substr($full_rev, 0, 8);
1987                 my $lineno = $2;
1988                 my $data = $3;
1989
1990                 if (!defined $last_rev) {
1991                         $last_rev = $full_rev;
1992                 } elsif ($last_rev ne $full_rev) {
1993                         $last_rev = $full_rev;
1994                         $current_color = ++$current_color % $num_colors;
1995                 }
1996                 print "<tr class=\"$rev_color[$current_color]\">\n";
1997                 print "<td class=\"sha1\">" .
1998                         $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)}, esc_html($rev)) . "</td>\n";
1999                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
2000                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2001                 print "</tr>\n";
2002         }
2003         print "</table>\n";
2004         print "</div>";
2005         close $fd or print "Reading blob failed\n";
2006         git_footer_html();
2007 }
2008
2009 sub git_blame {
2010         my $fd;
2011
2012         if (!gitweb_check_feature('blame')) {
2013                 die_error('403 Permission denied', "Permission denied");
2014         }
2015         die_error('404 Not Found', "File name not defined") if (!$file_name);
2016         $hash_base ||= git_get_head_hash($project);
2017         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2018         my %co = parse_commit($hash_base)
2019                 or die_error(undef, "Reading commit failed");
2020         if (!defined $hash) {
2021                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2022                         or die_error(undef, "Error lookup file");
2023         }
2024         open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2025                 or die_error(undef, "Open git-annotate failed");
2026         git_header_html();
2027         my $formats_nav =
2028                 $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
2029                 " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
2030         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2031         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2032         git_print_page_path($file_name, 'blob', $hash_base);
2033         print "<div class=\"page_body\">\n";
2034         print <<HTML;
2035 <table class="blame">
2036   <tr>
2037     <th>Commit</th>
2038     <th>Age</th>
2039     <th>Author</th>
2040     <th>Line</th>
2041     <th>Data</th>
2042   </tr>
2043 HTML
2044         my @line_class = (qw(light dark));
2045         my $line_class_len = scalar (@line_class);
2046         my $line_class_num = $#line_class;
2047         while (my $line = <$fd>) {
2048                 my $long_rev;
2049                 my $short_rev;
2050                 my $author;
2051                 my $time;
2052                 my $lineno;
2053                 my $data;
2054                 my $age;
2055                 my $age_str;
2056                 my $age_class;
2057
2058                 chomp $line;
2059                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2060
2061                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
2062                         $long_rev = $1;
2063                         $author   = $2;
2064                         $time     = $3;
2065                         $lineno   = $4;
2066                         $data     = $5;
2067                 } else {
2068                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2069                         next;
2070                 }
2071                 $short_rev  = substr ($long_rev, 0, 8);
2072                 $age        = time () - $time;
2073                 $age_str    = age_string ($age);
2074                 $age_str    =~ s/ /&nbsp;/g;
2075                 $age_class  = age_class($age);
2076                 $author     = esc_html ($author);
2077                 $author     =~ s/ /&nbsp;/g;
2078
2079                 $data = untabify($data);
2080                 $data = esc_html ($data);
2081
2082                 print <<HTML;
2083   <tr class="$line_class[$line_class_num]">
2084     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2085     <td class="$age_class">$age_str</td>
2086     <td>$author</td>
2087     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2088     <td class="pre">$data</td>
2089   </tr>
2090 HTML
2091         } # while (my $line = <$fd>)
2092         print "</table>\n\n";
2093         close $fd or print "Reading blob failed.\n";
2094         print "</div>";
2095         git_footer_html();
2096 }
2097
2098 sub git_tags {
2099         my $head = git_get_head_hash($project);
2100         git_header_html();
2101         git_print_page_nav('','', $head,undef,$head);
2102         git_print_header_div('summary', $project);
2103
2104         my $taglist = git_get_refs_list("refs/tags");
2105         if (defined @$taglist) {
2106                 git_tags_body($taglist);
2107         }
2108         git_footer_html();
2109 }
2110
2111 sub git_heads {
2112         my $head = git_get_head_hash($project);
2113         git_header_html();
2114         git_print_page_nav('','', $head,undef,$head);
2115         git_print_header_div('summary', $project);
2116
2117         my $taglist = git_get_refs_list("refs/heads");
2118         if (defined @$taglist) {
2119                 git_heads_body($taglist, $head);
2120         }
2121         git_footer_html();
2122 }
2123
2124 sub git_blob_plain {
2125         if (!defined $hash) {
2126                 if (defined $file_name) {
2127                         my $base = $hash_base || git_get_head_hash($project);
2128                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2129                                 or die_error(undef, "Error lookup file");
2130                 } else {
2131                         die_error(undef, "No file name defined");
2132                 }
2133         }
2134         my $type = shift;
2135         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
2136                 or die_error(undef, "Couldn't cat $file_name, $hash");
2137
2138         $type ||= blob_mimetype($fd, $file_name);
2139
2140         # save as filename, even when no $file_name is given
2141         my $save_as = "$hash";
2142         if (defined $file_name) {
2143                 $save_as = $file_name;
2144         } elsif ($type =~ m/^text\//) {
2145                 $save_as .= '.txt';
2146         }
2147
2148         print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
2149         undef $/;
2150         binmode STDOUT, ':raw';
2151         print <$fd>;
2152         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2153         $/ = "\n";
2154         close $fd;
2155 }
2156
2157 sub git_blob {
2158         if (!defined $hash) {
2159                 if (defined $file_name) {
2160                         my $base = $hash_base || git_get_head_hash($project);
2161                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2162                                 or die_error(undef, "Error lookup file");
2163                 } else {
2164                         die_error(undef, "No file name defined");
2165                 }
2166         }
2167         my $have_blame = gitweb_check_feature('blame');
2168         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
2169                 or die_error(undef, "Couldn't cat $file_name, $hash");
2170         my $mimetype = blob_mimetype($fd, $file_name);
2171         if ($mimetype !~ m/^text\//) {
2172                 close $fd;
2173                 return git_blob_plain($mimetype);
2174         }
2175         git_header_html();
2176         my $formats_nav = '';
2177         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2178                 if (defined $file_name) {
2179                         if ($have_blame) {
2180                                 $formats_nav .= $cgi->a({-href => href(action=>"blame", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blame") . " | ";
2181                         }
2182                         $formats_nav .=
2183                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash, file_name=>$file_name)}, "plain") .
2184                                 " | " . $cgi->a({-href => href(action=>"blob", hash_base=>"HEAD", file_name=>$file_name)}, "head");
2185                 } else {
2186                         $formats_nav .= $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2187                 }
2188                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2189                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2190         } else {
2191                 print "<div class=\"page_nav\">\n" .
2192                       "<br/><br/></div>\n" .
2193                       "<div class=\"title\">$hash</div>\n";
2194         }
2195         git_print_page_path($file_name, "blob", $hash_base);
2196         print "<div class=\"page_body\">\n";
2197         my $nr;
2198         while (my $line = <$fd>) {
2199                 chomp $line;
2200                 $nr++;
2201                 $line = untabify($line);
2202                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
2203         }
2204         close $fd or print "Reading blob failed.\n";
2205         print "</div>";
2206         git_footer_html();
2207 }
2208
2209 sub git_tree {
2210         if (!defined $hash) {
2211                 $hash = git_get_head_hash($project);
2212                 if (defined $file_name) {
2213                         my $base = $hash_base || $hash;
2214                         $hash = git_get_hash_by_path($base, $file_name, "tree");
2215                 }
2216                 if (!defined $hash_base) {
2217                         $hash_base = $hash;
2218                 }
2219         }
2220         $/ = "\0";
2221         open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
2222                 or die_error(undef, "Open git-ls-tree failed");
2223         my @entries = map { chomp; $_ } <$fd>;
2224         close $fd or die_error(undef, "Reading tree failed");
2225         $/ = "\n";
2226
2227         my $refs = git_get_references();
2228         my $ref = format_ref_marker($refs, $hash_base);
2229         git_header_html();
2230         my %base_key = ();
2231         my $base = "";
2232         my $have_blame = gitweb_check_feature('blame');
2233         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2234                 $base_key{hash_base} = $hash_base;
2235                 git_print_page_nav('tree','', $hash_base);
2236                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2237         } else {
2238                 print "<div class=\"page_nav\">\n";
2239                 print "<br/><br/></div>\n";
2240                 print "<div class=\"title\">$hash</div>\n";
2241         }
2242         if (defined $file_name) {
2243                 $base = esc_html("$file_name/");
2244         }
2245         git_print_page_path($file_name, 'tree', $hash_base);
2246         print "<div class=\"page_body\">\n";
2247         print "<table cellspacing=\"0\">\n";
2248         my $alternate = 0;
2249         foreach my $line (@entries) {
2250                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
2251                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
2252                 my $t_mode = $1;
2253                 my $t_type = $2;
2254                 my $t_hash = $3;
2255                 my $t_name = validate_input($4);
2256                 if ($alternate) {
2257                         print "<tr class=\"dark\">\n";
2258                 } else {
2259                         print "<tr class=\"light\">\n";
2260                 }
2261                 $alternate ^= 1;
2262                 print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
2263                 if ($t_type eq "blob") {
2264                         print "<td class=\"list\">" .
2265                               $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key), -class => "list"}, esc_html($t_name)) .
2266                               "</td>\n" .
2267                               "<td class=\"link\">" .
2268                               $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "blob");
2269                         if ($have_blame) {
2270                                 print " | " . $cgi->a({-href => href(action=>"blame", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "blame");
2271                         }
2272                         print " | " . $cgi->a({-href => href(action=>"history", hash=>$t_hash, hash_base=>$hash_base, file_name=>"$base$t_name")}, "history") .
2273                               " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$t_hash, file_name=>"$base$t_name")}, "raw") .
2274                               "</td>\n";
2275                 } elsif ($t_type eq "tree") {
2276                         print "<td class=\"list\">" .
2277                               $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, esc_html($t_name)) .
2278                               "</td>\n" .
2279                               "<td class=\"link\">" .
2280                               $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "tree") .
2281                               " | " . $cgi->a({-href => href(action=>"history", hash_base=>$hash_base, file_name=>"$base$t_name")}, "history") .
2282                               "</td>\n";
2283                 }
2284                 print "</tr>\n";
2285         }
2286         print "</table>\n" .
2287               "</div>";
2288         git_footer_html();
2289 }
2290
2291 sub git_snapshot {
2292
2293         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2294         my $have_snapshot = (defined $ctype && defined $suffix);
2295         if (!$have_snapshot) {
2296                 die_error('403 Permission denied', "Permission denied");
2297         }
2298
2299         if (!defined $hash) {
2300                 $hash = git_get_head_hash($project);
2301         }
2302
2303         my $filename = basename($project) . "-$hash.tar.$suffix";
2304
2305         print $cgi->header(-type => 'application/x-tar',
2306                            -content-encoding => $ctype,
2307                            '-content-disposition' =>
2308                            "inline; filename=\"$filename\"",
2309                            -status => '200 OK');
2310
2311         open my $fd, "-|", "$GIT tar-tree $hash \'$project\' | $command" or
2312                 die_error(undef, "Execute git-tar-tree failed.");
2313         binmode STDOUT, ':raw';
2314         print <$fd>;
2315         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2316         close $fd;
2317
2318 }
2319
2320 sub git_log {
2321         my $head = git_get_head_hash($project);
2322         if (!defined $hash) {
2323                 $hash = $head;
2324         }
2325         if (!defined $page) {
2326                 $page = 0;
2327         }
2328         my $refs = git_get_references();
2329
2330         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2331         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2332                 or die_error(undef, "Open git-rev-list failed");
2333         my @revlist = map { chomp; $_ } <$fd>;
2334         close $fd;
2335
2336         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2337
2338         git_header_html();
2339         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2340
2341         if (!@revlist) {
2342                 my %co = parse_commit($hash);
2343
2344                 git_print_header_div('summary', $project);
2345                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2346         }
2347         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2348                 my $commit = $revlist[$i];
2349                 my $ref = format_ref_marker($refs, $commit);
2350                 my %co = parse_commit($commit);
2351                 next if !%co;
2352                 my %ad = parse_date($co{'author_epoch'});
2353                 git_print_header_div('commit',
2354                                "<span class=\"age\">$co{'age_string'}</span>" .
2355                                esc_html($co{'title'}) . $ref,
2356                                $commit);
2357                 print "<div class=\"title_text\">\n" .
2358                       "<div class=\"log_link\">\n" .
2359                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2360                       " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2361                       "<br/>\n" .
2362                       "</div>\n" .
2363                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2364                       "</div>\n";
2365
2366                 print "<div class=\"log_body\">\n";
2367                 git_print_simplified_log($co{'comment'});
2368                 print "</div>\n";
2369         }
2370         git_footer_html();
2371 }
2372
2373 sub git_commit {
2374         my %co = parse_commit($hash);
2375         if (!%co) {
2376                 die_error(undef, "Unknown commit object");
2377         }
2378         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2379         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2380
2381         my $parent = $co{'parent'};
2382         if (!defined $parent) {
2383                 $parent = "--root";
2384         }
2385         open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
2386                 or die_error(undef, "Open git-diff-tree failed");
2387         my @difftree = map { chomp; $_ } <$fd>;
2388         close $fd or die_error(undef, "Reading git-diff-tree failed");
2389
2390         # non-textual hash id's can be cached
2391         my $expires;
2392         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2393                 $expires = "+1d";
2394         }
2395         my $refs = git_get_references();
2396         my $ref = format_ref_marker($refs, $co{'id'});
2397
2398         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2399         my $have_snapshot = (defined $ctype && defined $suffix);
2400
2401         my $formats_nav = '';
2402         if (defined $file_name && defined $co{'parent'}) {
2403                 my $parent = $co{'parent'};
2404                 $formats_nav .= $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)}, "blame");
2405         }
2406         git_header_html(undef, $expires);
2407         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2408                      $hash, $co{'tree'}, $hash,
2409                      $formats_nav);
2410
2411         if (defined $co{'parent'}) {
2412                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2413         } else {
2414                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2415         }
2416         print "<div class=\"title_text\">\n" .
2417               "<table cellspacing=\"0\">\n";
2418         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2419               "<tr>" .
2420               "<td></td><td> $ad{'rfc2822'}";
2421         if ($ad{'hour_local'} < 6) {
2422                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2423         } else {
2424                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2425         }
2426         print "</td>" .
2427               "</tr>\n";
2428         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2429         print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
2430         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2431         print "<tr>" .
2432               "<td>tree</td>" .
2433               "<td class=\"sha1\">" .
2434               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash), class => "list"}, $co{'tree'}) .
2435               "</td>" .
2436               "<td class=\"link\">" . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)}, "tree");
2437         if ($have_snapshot) {
2438                 print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2439         }
2440         print "</td>" .
2441               "</tr>\n";
2442         my $parents = $co{'parents'};
2443         foreach my $par (@$parents) {
2444                 print "<tr>" .
2445                       "<td>parent</td>" .
2446                       "<td class=\"sha1\">" . $cgi->a({-href => href(action=>"commit", hash=>$par), class => "list"}, $par) . "</td>" .
2447                       "<td class=\"link\">" .
2448                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2449                       " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .
2450                       "</td>" .
2451                       "</tr>\n";
2452         }
2453         print "</table>".
2454               "</div>\n";
2455
2456         print "<div class=\"page_body\">\n";
2457         git_print_log($co{'comment'});
2458         print "</div>\n";
2459
2460         git_difftree_body(\@difftree, $parent);
2461
2462         git_footer_html();
2463 }
2464
2465 sub git_blobdiff {
2466         mkdir($git_temp, 0700);
2467         git_header_html();
2468         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2469                 my $formats_nav =
2470                         $cgi->a({-href => href(action=>"blobdiff_plain", hash=>$hash, hash_parent=>$hash_parent)}, "plain");
2471                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2472                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2473         } else {
2474                 print "<div class=\"page_nav\">\n" .
2475                       "<br/><br/></div>\n" .
2476                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
2477         }
2478         git_print_page_path($file_name, "blob", $hash_base);
2479         print "<div class=\"page_body\">\n" .
2480               "<div class=\"diff_info\">blob:" .
2481               $cgi->a({-href => href(action=>"blob", hash=>$hash_parent, hash_base=>$hash_base, file_name=>($file_parent || $file_name))}, $hash_parent) .
2482               " -> blob:" .
2483               $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, $hash) .
2484               "</div>\n";
2485         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2486         print "</div>";
2487         git_footer_html();
2488 }
2489
2490 sub git_blobdiff_plain {
2491         mkdir($git_temp, 0700);
2492         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2493         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2494 }
2495
2496 sub git_commitdiff {
2497         mkdir($git_temp, 0700);
2498         my %co = parse_commit($hash);
2499         if (!%co) {
2500                 die_error(undef, "Unknown commit object");
2501         }
2502         if (!defined $hash_parent) {
2503                 $hash_parent = $co{'parent'} || '--root';
2504         }
2505         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2506                 or die_error(undef, "Open git-diff-tree failed");
2507         my @difftree = map { chomp; $_ } <$fd>;
2508         close $fd or die_error(undef, "Reading git-diff-tree failed");
2509
2510         # non-textual hash id's can be cached
2511         my $expires;
2512         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2513                 $expires = "+1d";
2514         }
2515         my $refs = git_get_references();
2516         my $ref = format_ref_marker($refs, $co{'id'});
2517         my $formats_nav =
2518                 $cgi->a({-href => href(action=>"commitdiff_plain", hash=>$hash, hash_parent=>$hash_parent)}, "plain");
2519         git_header_html(undef, $expires);
2520         git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
2521         git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
2522         print "<div class=\"page_body\">\n";
2523         git_print_simplified_log($co{'comment'}, 1); # skip title
2524         print "<br/>\n";
2525         foreach my $line (@difftree) {
2526                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2527                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2528                 if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2529                         next;
2530                 }
2531                 my $from_mode = $1;
2532                 my $to_mode = $2;
2533                 my $from_id = $3;
2534                 my $to_id = $4;
2535                 my $status = $5;
2536                 my $file = validate_input(unquote($6));
2537                 if ($status eq "A") {
2538                         print "<div class=\"diff_info\">" . file_type($to_mode) . ":" .
2539                               $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, $to_id) . "(new)" .
2540                               "</div>\n";
2541                         git_diff_print(undef, "/dev/null", $to_id, "b/$file");
2542                 } elsif ($status eq "D") {
2543                         print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
2544                               $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$hash_parent, file_name=>$file)}, $from_id) . "(deleted)" .
2545                               "</div>\n";
2546                         git_diff_print($from_id, "a/$file", undef, "/dev/null");
2547                 } elsif ($status eq "M") {
2548                         if ($from_id ne $to_id) {
2549                                 print "<div class=\"diff_info\">" .
2550                                       file_type($from_mode) . ":" .
2551                                       $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$hash_parent, file_name=>$file)}, $from_id) .
2552                                       " -> " .
2553                                       file_type($to_mode) . ":" .
2554                                       $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, $to_id);
2555                                 print "</div>\n";
2556                                 git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
2557                         }
2558                 }
2559         }
2560         print "<br/>\n" .
2561               "</div>";
2562         git_footer_html();
2563 }
2564
2565 sub git_commitdiff_plain {
2566         mkdir($git_temp, 0700);
2567         my %co = parse_commit($hash);
2568         if (!%co) {
2569                 die_error(undef, "Unknown commit object");
2570         }
2571         if (!defined $hash_parent) {
2572                 $hash_parent = $co{'parent'} || '--root';
2573         }
2574         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2575                 or die_error(undef, "Open git-diff-tree failed");
2576         my @difftree = map { chomp; $_ } <$fd>;
2577         close $fd or die_error(undef, "Reading diff-tree failed");
2578
2579         # try to figure out the next tag after this commit
2580         my $tagname;
2581         my $refs = git_get_references("tags");
2582         open $fd, "-|", $GIT, "rev-list", "HEAD";
2583         my @commits = map { chomp; $_ } <$fd>;
2584         close $fd;
2585         foreach my $commit (@commits) {
2586                 if (defined $refs->{$commit}) {
2587                         $tagname = $refs->{$commit}
2588                 }
2589                 if ($commit eq $hash) {
2590                         last;
2591                 }
2592         }
2593
2594         print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2595         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2596         my $comment = $co{'comment'};
2597         print "From: $co{'author'}\n" .
2598               "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2599               "Subject: $co{'title'}\n";
2600         if (defined $tagname) {
2601                 print "X-Git-Tag: $tagname\n";
2602         }
2603         print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2604               "\n";
2605
2606         foreach my $line (@$comment) {;
2607                 print "$line\n";
2608         }
2609         print "---\n\n";
2610
2611         foreach my $line (@difftree) {
2612                 if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2613                         next;
2614                 }
2615                 my $from_id = $3;
2616                 my $to_id = $4;
2617                 my $status = $5;
2618                 my $file = $6;
2619                 if ($status eq "A") {
2620                         git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2621                 } elsif ($status eq "D") {
2622                         git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2623                 } elsif ($status eq "M") {
2624                         git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2625                 }
2626         }
2627 }
2628
2629 sub git_history {
2630         if (!defined $hash_base) {
2631                 $hash_base = git_get_head_hash($project);
2632         }
2633         my $ftype;
2634         my %co = parse_commit($hash_base);
2635         if (!%co) {
2636                 die_error(undef, "Unknown commit object");
2637         }
2638         my $refs = git_get_references();
2639         git_header_html();
2640         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base);
2641         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2642         if (!defined $hash && defined $file_name) {
2643                 $hash = git_get_hash_by_path($hash_base, $file_name);
2644         }
2645         if (defined $hash) {
2646                 $ftype = git_get_type($hash);
2647         }
2648         git_print_page_path($file_name, $ftype, $hash_base);
2649
2650         open my $fd, "-|",
2651                 $GIT, "rev-list", "--full-history", $hash_base, "--", $file_name;
2652         git_history_body($fd, $refs, $hash_base, $ftype);
2653
2654         close $fd;
2655         git_footer_html();
2656 }
2657
2658 sub git_search {
2659         if (!defined $searchtext) {
2660                 die_error(undef, "Text field empty");
2661         }
2662         if (!defined $hash) {
2663                 $hash = git_get_head_hash($project);
2664         }
2665         my %co = parse_commit($hash);
2666         if (!%co) {
2667                 die_error(undef, "Unknown commit object");
2668         }
2669         # pickaxe may take all resources of your box and run for several minutes
2670         # with every query - so decide by yourself how public you make this feature :)
2671         my $commit_search = 1;
2672         my $author_search = 0;
2673         my $committer_search = 0;
2674         my $pickaxe_search = 0;
2675         if ($searchtext =~ s/^author\\://i) {
2676                 $author_search = 1;
2677         } elsif ($searchtext =~ s/^committer\\://i) {
2678                 $committer_search = 1;
2679         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2680                 $commit_search = 0;
2681                 $pickaxe_search = 1;
2682         }
2683         git_header_html();
2684         git_print_page_nav('','', $hash,$co{'tree'},$hash);
2685         git_print_header_div('commit', esc_html($co{'title'}), $hash);
2686
2687         print "<table cellspacing=\"0\">\n";
2688         my $alternate = 0;
2689         if ($commit_search) {
2690                 $/ = "\0";
2691                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
2692                 while (my $commit_text = <$fd>) {
2693                         if (!grep m/$searchtext/i, $commit_text) {
2694                                 next;
2695                         }
2696                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2697                                 next;
2698                         }
2699                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2700                                 next;
2701                         }
2702                         my @commit_lines = split "\n", $commit_text;
2703                         my %co = parse_commit(undef, \@commit_lines);
2704                         if (!%co) {
2705                                 next;
2706                         }
2707                         if ($alternate) {
2708                                 print "<tr class=\"dark\">\n";
2709                         } else {
2710                                 print "<tr class=\"light\">\n";
2711                         }
2712                         $alternate ^= 1;
2713                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2714                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2715                               "<td>" .
2716                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}) -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2717                         my $comment = $co{'comment'};
2718                         foreach my $line (@$comment) {
2719                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2720                                         my $lead = esc_html($1) || "";
2721                                         $lead = chop_str($lead, 30, 10);
2722                                         my $match = esc_html($2) || "";
2723                                         my $trail = esc_html($3) || "";
2724                                         $trail = chop_str($trail, 30, 10);
2725                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
2726                                         print chop_str($text, 80, 5) . "<br/>\n";
2727                                 }
2728                         }
2729                         print "</td>\n" .
2730                               "<td class=\"link\">" .
2731                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2732                               " | " . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2733                         print "</td>\n" .
2734                               "</tr>\n";
2735                 }
2736                 close $fd;
2737         }
2738
2739         if ($pickaxe_search) {
2740                 $/ = "\n";
2741                 open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
2742                 undef %co;
2743                 my @files;
2744                 while (my $line = <$fd>) {
2745                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2746                                 my %set;
2747                                 $set{'file'} = $6;
2748                                 $set{'from_id'} = $3;
2749                                 $set{'to_id'} = $4;
2750                                 $set{'id'} = $set{'to_id'};
2751                                 if ($set{'id'} =~ m/0{40}/) {
2752                                         $set{'id'} = $set{'from_id'};
2753                                 }
2754                                 if ($set{'id'} =~ m/0{40}/) {
2755                                         next;
2756                                 }
2757                                 push @files, \%set;
2758                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2759                                 if (%co) {
2760                                         if ($alternate) {
2761                                                 print "<tr class=\"dark\">\n";
2762                                         } else {
2763                                                 print "<tr class=\"light\">\n";
2764                                         }
2765                                         $alternate ^= 1;
2766                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2767                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2768                                               "<td>" .
2769                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list"}, "<b>" .
2770                                               esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2771                                         while (my $setref = shift @files) {
2772                                                 my %set = %$setref;
2773                                                 print $cgi->a({-href => href(action=>"blob", hash=>$set{'id'}, hash_base=>$co{'id'}, file_name=>$set{'file'}), class => "list"},
2774                                                       "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
2775                                                       "<br/>\n";
2776                                         }
2777                                         print "</td>\n" .
2778                                               "<td class=\"link\">" .
2779                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2780                                               " | " . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2781                                         print "</td>\n" .
2782                                               "</tr>\n";
2783                                 }
2784                                 %co = parse_commit($1);
2785                         }
2786                 }
2787                 close $fd;
2788         }
2789         print "</table>\n";
2790         git_footer_html();
2791 }
2792
2793 sub git_shortlog {
2794         my $head = git_get_head_hash($project);
2795         if (!defined $hash) {
2796                 $hash = $head;
2797         }
2798         if (!defined $page) {
2799                 $page = 0;
2800         }
2801         my $refs = git_get_references();
2802
2803         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2804         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2805                 or die_error(undef, "Open git-rev-list failed");
2806         my @revlist = map { chomp; $_ } <$fd>;
2807         close $fd;
2808
2809         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
2810         my $next_link = '';
2811         if ($#revlist >= (100 * ($page+1)-1)) {
2812                 $next_link =
2813                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
2814                                  -title => "Alt-n"}, "next");
2815         }
2816
2817
2818         git_header_html();
2819         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
2820         git_print_header_div('summary', $project);
2821
2822         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
2823
2824         git_footer_html();
2825 }
2826
2827 ## ......................................................................
2828 ## feeds (RSS, OPML)
2829
2830 sub git_rss {
2831         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
2832         open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_get_head_hash($project)
2833                 or die_error(undef, "Open git-rev-list failed");
2834         my @revlist = map { chomp; $_ } <$fd>;
2835         close $fd or die_error(undef, "Reading git-rev-list failed");
2836         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
2837         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
2838               "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
2839         print "<channel>\n";
2840         print "<title>$project</title>\n".
2841               "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
2842               "<description>$project log</description>\n".
2843               "<language>en</language>\n";
2844
2845         for (my $i = 0; $i <= $#revlist; $i++) {
2846                 my $commit = $revlist[$i];
2847                 my %co = parse_commit($commit);
2848                 # we read 150, we always show 30 and the ones more recent than 48 hours
2849                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
2850                         last;
2851                 }
2852                 my %cd = parse_date($co{'committer_epoch'});
2853                 open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
2854                 my @difftree = map { chomp; $_ } <$fd>;
2855                 close $fd or next;
2856                 print "<item>\n" .
2857                       "<title>" .
2858                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
2859                       "</title>\n" .
2860                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
2861                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
2862                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
2863                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
2864                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
2865                       "<content:encoded>" .
2866                       "<![CDATA[\n";
2867                 my $comment = $co{'comment'};
2868                 foreach my $line (@$comment) {
2869                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
2870                         print "$line<br/>\n";
2871                 }
2872                 print "<br/>\n";
2873                 foreach my $line (@difftree) {
2874                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
2875                                 next;
2876                         }
2877                         my $file = validate_input(unquote($7));
2878                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
2879                         print "$file<br/>\n";
2880                 }
2881                 print "]]>\n" .
2882                       "</content:encoded>\n" .
2883                       "</item>\n";
2884         }
2885         print "</channel></rss>";
2886 }
2887
2888 sub git_opml {
2889         my @list = git_get_projects_list();
2890
2891         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
2892         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
2893               "<opml version=\"1.0\">\n".
2894               "<head>".
2895               "  <title>$site_name Git OPML Export</title>\n".
2896               "</head>\n".
2897               "<body>\n".
2898               "<outline text=\"git RSS feeds\">\n";
2899
2900         foreach my $pr (@list) {
2901                 my %proj = %$pr;
2902                 my $head = git_get_head_hash($proj{'path'});
2903                 if (!defined $head) {
2904                         next;
2905                 }
2906                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
2907                 my %co = parse_commit($head);
2908                 if (!%co) {
2909                         next;
2910                 }
2911
2912                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
2913                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
2914                 my $html = "$my_url?p=$proj{'path'};a=summary";
2915                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
2916         }
2917         print "</outline>\n".
2918               "</body>\n".
2919               "</opml>\n";
2920 }