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 # $GITWEB_CONFIG as necessary.
  72 our %feature = (
  73         # feature => {'sub' => feature-sub, 'override' => allow-override, 'default' => [ default options...]
  74         # if feature is overridable, feature-sub will be called with default options;
  75         # return value indicates if to enable specified feature
  76
  77         'blame' => {
  78                 'sub' => \&feature_blame,
  79                 'override' => 0,
  80                 'default' => [0]},
  81
  82         'snapshot' => {
  83                 'sub' => \&feature_snapshot,
  84                 'override' => 0,
  85                 #         => [content-encoding, suffix, program]
  86                 'default' => ['x-gzip', 'gz', 'gzip']},
  87 );
  88
  89 sub gitweb_check_feature {
  90         my ($name) = @_;
  91         return undef unless exists $feature{$name};
  92         my ($sub, $override, @defaults) = (
  93                 $feature{$name}{'sub'},
  94                 $feature{$name}{'override'},
  95                 @{$feature{$name}{'default'}});
  96         if (!$override) { return @defaults; }
  97         return $sub->(@defaults);
  98 }
  99
 100 # To enable system wide have in $GITWEB_CONFIG
 101 # $feature{'blame'}{'default'} =  [1];
 102 # To have project specific config enable override in  $GITWEB_CONFIG
 103 # $feature{'blame'}{'override'} =  1;
 104 # and in project config gitweb.blame = 0|1;
 105
 106 sub feature_blame {
 107         my ($val) = git_get_project_config('blame', '--bool');
 108
 109         if ($val eq 'true') {
 110                 return 1;
 111         } elsif ($val eq 'false') {
 112                 return 0;
 113         }
 114
 115         return $_[0];
 116 }
 117
 118 # To disable system wide have in $GITWEB_CONFIG
 119 # $feature{'snapshot'}{'default'} =  [undef];
 120 # To have project specific config enable override in  $GITWEB_CONFIG
 121 # $feature{'blame'}{'override'} =  1;
 122 # and in project config  gitweb.snapshot = none|gzip|bzip2
 123
 124 sub feature_snapshot {
 125         my ($ctype, $suffix, $command) = @_;
 126
 127         my ($val) = git_get_project_config('snapshot');
 128
 129         if ($val eq 'gzip') {
 130                 return ('x-gzip', 'gz', 'gzip');
 131         } elsif ($val eq 'bzip2') {
 132                 return ('x-bzip2', 'bz2', 'bzip2');
 133         } elsif ($val eq 'none') {
 134                 return ();
 135         }
 136
 137         return ($ctype, $suffix, $command);
 138 }
 139
 140 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 141 require $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 142
 143 # version of the core git binary
 144 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 145
 146 $projects_list ||= $projectroot;
 147 if (! -d $git_temp) {
 148         mkdir($git_temp, 0700) || die_error(undef, "Couldn't mkdir $git_temp");
 149 }
 150
 151 # ======================================================================
 152 # input validation and dispatch
 153 our $action = $cgi->param('a');
 154 if (defined $action) {
 155         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 156                 die_error(undef, "Invalid action parameter");
 157         }
 158 }
 159
 160 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
 161 if (defined $project) {
 162         $project =~ s|^/||;
 163         $project =~ s|/$||;
 164         $project = undef unless $project;
 165 }
 166 if (defined $project) {
 167         if (!validate_input($project)) {
 168                 die_error(undef, "Invalid project parameter");
 169         }
 170         if (!(-d "$projectroot/$project")) {
 171                 die_error(undef, "No such directory");
 172         }
 173         if (!(-e "$projectroot/$project/HEAD")) {
 174                 die_error(undef, "No such project");
 175         }
 176         $ENV{'GIT_DIR'} = "$projectroot/$project";
 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         # those below don't need $project
 251         "opml" => \&git_opml,
 252         "project_list" => \&git_project_list,
 253 );
 254
 255 if (defined $project) {
 256         $action ||= 'summary';
 257 } else {
 258         $action ||= 'project_list';
 259 }
 260 if (!defined($actions{$action})) {
 261         die_error(undef, "Unknown action");
 262 }
 263 $actions{$action}->();
 264 exit;
 265
 266 ## ======================================================================
 267 ## action links
 268
 269 sub href(%) {
 270         my %params = @_;
 271
 272         my @mapping = (
 273                 action => "a",
 274                 project => "p",
 275                 file_name => "f",
 276                 file_parent => "fp",
 277                 hash => "h",
 278                 hash_parent => "hp",
 279                 hash_base => "hb",
 280                 page => "pg",
 281                 searchtext => "s",
 282         );
 283         my %mapping = @mapping;
 284
 285         $params{"project"} ||= $project;
 286
 287         my @result = ();
 288         for (my $i = 0; $i < @mapping; $i += 2) {
 289                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 290                 if (defined $params{$name}) {
 291                         push @result, $symbol . "=" . esc_param($params{$name});
 292                 }
 293         }
 294         return "$my_uri?" . join(';', @result);
 295 }
 296
 297
 298 ## ======================================================================
 299 ## validation, quoting/unquoting and escaping
 300
 301 sub validate_input {
 302         my $input = shift;
 303
 304         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 305                 return $input;
 306         }
 307         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 308                 return undef;
 309         }
 310         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 311                 return undef;
 312         }
 313         return $input;
 314 }
 315
 316 # quote unsafe chars, but keep the slash, even when it's not
 317 # correct, but quoted slashes look too horrible in bookmarks
 318 sub esc_param {
 319         my $str = shift;
 320         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 321         $str =~ s/\+/%2B/g;
 322         $str =~ s/ /\+/g;
 323         return $str;
 324 }
 325
 326 # replace invalid utf8 character with SUBSTITUTION sequence
 327 sub esc_html {
 328         my $str = shift;
 329         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 330         $str = escapeHTML($str);
 331         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 332         return $str;
 333 }
 334
 335 # git may return quoted and escaped filenames
 336 sub unquote {
 337         my $str = shift;
 338         if ($str =~ m/^"(.*)"$/) {
 339                 $str = $1;
 340                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 341         }
 342         return $str;
 343 }
 344
 345 # escape tabs (convert tabs to spaces)
 346 sub untabify {
 347         my $line = shift;
 348
 349         while ((my $pos = index($line, "\t")) != -1) {
 350                 if (my $count = (8 - ($pos % 8))) {
 351                         my $spaces = ' ' x $count;
 352                         $line =~ s/\t/$spaces/;
 353                 }
 354         }
 355
 356         return $line;
 357 }
 358
 359 ## ----------------------------------------------------------------------
 360 ## HTML aware string manipulation
 361
 362 sub chop_str {
 363         my $str = shift;
 364         my $len = shift;
 365         my $add_len = shift || 10;
 366
 367         # allow only $len chars, but don't cut a word if it would fit in $add_len
 368         # if it doesn't fit, cut it if it's still longer than the dots we would add
 369         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 370         my $body = $1;
 371         my $tail = $2;
 372         if (length($tail) > 4) {
 373                 $tail = " ...";
 374                 $body =~ s/&[^;]*$//; # remove chopped character entities
 375         }
 376         return "$body$tail";
 377 }
 378
 379 ## ----------------------------------------------------------------------
 380 ## functions returning short strings
 381
 382 # CSS class for given age value (in seconds)
 383 sub age_class {
 384         my $age = shift;
 385
 386         if ($age < 60*60*2) {
 387                 return "age0";
 388         } elsif ($age < 60*60*24*2) {
 389                 return "age1";
 390         } else {
 391                 return "age2";
 392         }
 393 }
 394
 395 # convert age in seconds to "nn units ago" string
 396 sub age_string {
 397         my $age = shift;
 398         my $age_str;
 399
 400         if ($age > 60*60*24*365*2) {
 401                 $age_str = (int $age/60/60/24/365);
 402                 $age_str .= " years ago";
 403         } elsif ($age > 60*60*24*(365/12)*2) {
 404                 $age_str = int $age/60/60/24/(365/12);
 405                 $age_str .= " months ago";
 406         } elsif ($age > 60*60*24*7*2) {
 407                 $age_str = int $age/60/60/24/7;
 408                 $age_str .= " weeks ago";
 409         } elsif ($age > 60*60*24*2) {
 410                 $age_str = int $age/60/60/24;
 411                 $age_str .= " days ago";
 412         } elsif ($age > 60*60*2) {
 413                 $age_str = int $age/60/60;
 414                 $age_str .= " hours ago";
 415         } elsif ($age > 60*2) {
 416                 $age_str = int $age/60;
 417                 $age_str .= " min ago";
 418         } elsif ($age > 2) {
 419                 $age_str = int $age;
 420                 $age_str .= " sec ago";
 421         } else {
 422                 $age_str .= " right now";
 423         }
 424         return $age_str;
 425 }
 426
 427 # convert file mode in octal to symbolic file mode string
 428 sub mode_str {
 429         my $mode = oct shift;
 430
 431         if (S_ISDIR($mode & S_IFMT)) {
 432                 return 'drwxr-xr-x';
 433         } elsif (S_ISLNK($mode)) {
 434                 return 'lrwxrwxrwx';
 435         } elsif (S_ISREG($mode)) {
 436                 # git cares only about the executable bit
 437                 if ($mode & S_IXUSR) {
 438                         return '-rwxr-xr-x';
 439                 } else {
 440                         return '-rw-r--r--';
 441                 };
 442         } else {
 443                 return '----------';
 444         }
 445 }
 446
 447 # convert file mode in octal to file type string
 448 sub file_type {
 449         my $mode = oct shift;
 450
 451         if (S_ISDIR($mode & S_IFMT)) {
 452                 return "directory";
 453         } elsif (S_ISLNK($mode)) {
 454                 return "symlink";
 455         } elsif (S_ISREG($mode)) {
 456                 return "file";
 457         } else {
 458                 return "unknown";
 459         }
 460 }
 461
 462 ## ----------------------------------------------------------------------
 463 ## functions returning short HTML fragments, or transforming HTML fragments
 464 ## which don't beling to other sections
 465
 466 # format line of commit message or tag comment
 467 sub format_log_line_html {
 468         my $line = shift;
 469
 470         $line = esc_html($line);
 471         $line =~ s/ /&nbsp;/g;
 472         if ($line =~ m/([0-9a-fA-F]{40})/) {
 473                 my $hash_text = $1;
 474                 if (git_get_type($hash_text) eq "commit") {
 475                         my $link =
 476                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 477                                         -class => "text"}, $hash_text);
 478                         $line =~ s/$hash_text/$link/;
 479                 }
 480         }
 481         return $line;
 482 }
 483
 484 # format marker of refs pointing to given object
 485 sub format_ref_marker {
 486         my ($refs, $id) = @_;
 487         my $markers = '';
 488
 489         if (defined $refs->{$id}) {
 490                 foreach my $ref (@{$refs->{$id}}) {
 491                         my ($type, $name) = qw();
 492                         # e.g. tags/v2.6.11 or heads/next
 493                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 494                                 $type = $1;
 495                                 $name = $2;
 496                         } else {
 497                                 $type = "ref";
 498                                 $name = $ref;
 499                         }
 500
 501                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 502                 }
 503         }
 504
 505         if ($markers) {
 506                 return ' <span class="refs">'. $markers . '</span>';
 507         } else {
 508                 return "";
 509         }
 510 }
 511
 512 # format, perhaps shortened and with markers, title line
 513 sub format_subject_html {
 514         my ($long, $short, $href, $extra) = @_;
 515         $extra = '' unless defined($extra);
 516
 517         if (length($short) < length($long)) {
 518                 return $cgi->a({-href => $href, -class => "list subject",
 519                                 -title => $long},
 520                        esc_html($short) . $extra);
 521         } else {
 522                 return $cgi->a({-href => $href, -class => "list subject"},
 523                        esc_html($long)  . $extra);
 524         }
 525 }
 526
 527 sub format_diff_line {
 528         my $line = shift;
 529         my $char = substr($line, 0, 1);
 530         my $diff_class = "";
 531
 532         chomp $line;
 533
 534         if ($char eq '+') {
 535                 $diff_class = " add";
 536         } elsif ($char eq "-") {
 537                 $diff_class = " rem";
 538         } elsif ($char eq "@") {
 539                 $diff_class = " chunk_header";
 540         } elsif ($char eq "\\") {
 541                 $diff_class = " incomplete";
 542         }
 543         $line = untabify($line);
 544         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 545 }
 546
 547 ## ----------------------------------------------------------------------
 548 ## git utility subroutines, invoking git commands
 549
 550 # get HEAD ref of given project as hash
 551 sub git_get_head_hash {
 552         my $project = shift;
 553         my $oENV = $ENV{'GIT_DIR'};
 554         my $retval = undef;
 555         $ENV{'GIT_DIR'} = "$projectroot/$project";
 556         if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 557                 my $head = <$fd>;
 558                 close $fd;
 559                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 560                         $retval = $1;
 561                 }
 562         }
 563         if (defined $oENV) {
 564                 $ENV{'GIT_DIR'} = $oENV;
 565         }
 566         return $retval;
 567 }
 568
 569 # get type of given object
 570 sub git_get_type {
 571         my $hash = shift;
 572
 573         open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 574         my $type = <$fd>;
 575         close $fd or return;
 576         chomp $type;
 577         return $type;
 578 }
 579
 580 sub git_get_project_config {
 581         my ($key, $type) = @_;
 582
 583         return unless ($key);
 584         $key =~ s/^gitweb\.//;
 585         return if ($key =~ m/\W/);
 586
 587         my @x = ($GIT, 'repo-config');
 588         if (defined $type) { push @x, $type; }
 589         push @x, "--get";
 590         push @x, "gitweb.$key";
 591         my $val = qx(@x);
 592         chomp $val;
 593         return ($val);
 594 }
 595
 596 # get hash of given path at given ref
 597 sub git_get_hash_by_path {
 598         my $base = shift;
 599         my $path = shift || return undef;
 600
 601         my $tree = $base;
 602
 603         open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
 604                 or die_error(undef, "Open git-ls-tree failed");
 605         my $line = <$fd>;
 606         close $fd or return undef;
 607
 608         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 609         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 610         return $3;
 611 }
 612
 613 ## ......................................................................
 614 ## git utility functions, directly accessing git repository
 615
 616 # assumes that PATH is not symref
 617 sub git_get_hash_by_ref {
 618         my $path = shift;
 619
 620         open my $fd, "$projectroot/$path" or return undef;
 621         my $head = <$fd>;
 622         close $fd;
 623         chomp $head;
 624         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 625                 return $head;
 626         }
 627 }
 628
 629 sub git_get_project_description {
 630         my $path = shift;
 631
 632         open my $fd, "$projectroot/$path/description" or return undef;
 633         my $descr = <$fd>;
 634         close $fd;
 635         chomp $descr;
 636         return $descr;
 637 }
 638
 639 sub git_get_project_url_list {
 640         my $path = shift;
 641
 642         open my $fd, "$projectroot/$path/cloneurl" or return undef;
 643         my @git_project_url_list = map { chomp; $_ } <$fd>;
 644         close $fd;
 645
 646         return wantarray ? @git_project_url_list : \@git_project_url_list;
 647 }
 648
 649 sub git_get_projects_list {
 650         my @list;
 651
 652         if (-d $projects_list) {
 653                 # search in directory
 654                 my $dir = $projects_list;
 655                 opendir my ($dh), $dir or return undef;
 656                 while (my $dir = readdir($dh)) {
 657                         if (-e "$projectroot/$dir/HEAD") {
 658                                 my $pr = {
 659                                         path => $dir,
 660                                 };
 661                                 push @list, $pr
 662                         }
 663                 }
 664                 closedir($dh);
 665         } elsif (-f $projects_list) {
 666                 # read from file(url-encoded):
 667                 # 'git%2Fgit.git Linus+Torvalds'
 668                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 669                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 670                 open my ($fd), $projects_list or return undef;
 671                 while (my $line = <$fd>) {
 672                         chomp $line;
 673                         my ($path, $owner) = split ' ', $line;
 674                         $path = unescape($path);
 675                         $owner = unescape($owner);
 676                         if (!defined $path) {
 677                                 next;
 678                         }
 679                         if (-e "$projectroot/$path/HEAD") {
 680                                 my $pr = {
 681                                         path => $path,
 682                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 683                                 };
 684                                 push @list, $pr
 685                         }
 686                 }
 687                 close $fd;
 688         }
 689         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 690         return @list;
 691 }
 692
 693 sub git_get_project_owner {
 694         my $project = shift;
 695         my $owner;
 696
 697         return undef unless $project;
 698
 699         # read from file (url-encoded):
 700         # 'git%2Fgit.git Linus+Torvalds'
 701         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 702         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 703         if (-f $projects_list) {
 704                 open (my $fd , $projects_list);
 705                 while (my $line = <$fd>) {
 706                         chomp $line;
 707                         my ($pr, $ow) = split ' ', $line;
 708                         $pr = unescape($pr);
 709                         $ow = unescape($ow);
 710                         if ($pr eq $project) {
 711                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 712                                 last;
 713                         }
 714                 }
 715                 close $fd;
 716         }
 717         if (!defined $owner) {
 718                 $owner = get_file_owner("$projectroot/$project");
 719         }
 720
 721         return $owner;
 722 }
 723
 724 sub git_get_references {
 725         my $type = shift || "";
 726         my %refs;
 727         my $fd;
 728         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 729         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 730         if (-f "$projectroot/$project/info/refs") {
 731                 open $fd, "$projectroot/$project/info/refs"
 732                         or return;
 733         } else {
 734                 open $fd, "-|", $GIT, "ls-remote", "."
 735                         or return;
 736         }
 737
 738         while (my $line = <$fd>) {
 739                 chomp $line;
 740                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 741                         if (defined $refs{$1}) {
 742                                 push @{$refs{$1}}, $2;
 743                         } else {
 744                                 $refs{$1} = [ $2 ];
 745                         }
 746                 }
 747         }
 748         close $fd or return;
 749         return \%refs;
 750 }
 751
 752 sub git_get_following_references {
 753         my $hash = shift || return undef;
 754         my $type = shift;
 755         my $base = shift || $hash_base || "HEAD";
 756
 757         my $refs = git_get_references($type);
 758         open my $fd, "-|", $GIT, "rev-list", $base
 759                 or return undef;
 760         my @commits = map { chomp; $_ } <$fd>;
 761         close $fd
 762                 or return undef;
 763
 764         my @reflist;
 765         my $lastref;
 766
 767         foreach my $commit (@commits) {
 768                 foreach my $ref (@{$refs->{$commit}}) {
 769                         $lastref = $ref;
 770                         push @reflist, $lastref;
 771                 }
 772                 if ($commit eq $hash) {
 773                         last;
 774                 }
 775         }
 776
 777         return wantarray ? @reflist : $lastref;
 778 }
 779
 780 sub git_get_preceding_references {
 781         my $hash = shift || return undef;
 782         my $type = shift;
 783
 784         my $refs = git_get_references($type);
 785         open my $fd, "-|", $GIT, "rev-list", $hash
 786                 or return undef;
 787         my @commits = map { chomp; $_ } <$fd>;
 788         close $fd
 789                 or return undef;
 790
 791         my @reflist;
 792
 793         foreach my $commit (@commits) {
 794                 foreach my $ref (@{$refs->{$commit}}) {
 795                         return $ref unless wantarray;
 796                         push @reflist, $ref;
 797                 }
 798         }
 799
 800         return @reflist;
 801 }
 802
 803 ## ----------------------------------------------------------------------
 804 ## parse to hash functions
 805
 806 sub parse_date {
 807         my $epoch = shift;
 808         my $tz = shift || "-0000";
 809
 810         my %date;
 811         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 812         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 813         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 814         $date{'hour'} = $hour;
 815         $date{'minute'} = $min;
 816         $date{'mday'} = $mday;
 817         $date{'day'} = $days[$wday];
 818         $date{'month'} = $months[$mon];
 819         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 820                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 821         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 822                              $mday, $months[$mon], $hour ,$min;
 823
 824         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 825         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 826         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 827         $date{'hour_local'} = $hour;
 828         $date{'minute_local'} = $min;
 829         $date{'tz_local'} = $tz;
 830         return %date;
 831 }
 832
 833 sub parse_tag {
 834         my $tag_id = shift;
 835         my %tag;
 836         my @comment;
 837
 838         open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 839         $tag{'id'} = $tag_id;
 840         while (my $line = <$fd>) {
 841                 chomp $line;
 842                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 843                         $tag{'object'} = $1;
 844                 } elsif ($line =~ m/^type (.+)$/) {
 845                         $tag{'type'} = $1;
 846                 } elsif ($line =~ m/^tag (.+)$/) {
 847                         $tag{'name'} = $1;
 848                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 849                         $tag{'author'} = $1;
 850                         $tag{'epoch'} = $2;
 851                         $tag{'tz'} = $3;
 852                 } elsif ($line =~ m/--BEGIN/) {
 853                         push @comment, $line;
 854                         last;
 855                 } elsif ($line eq "") {
 856                         last;
 857                 }
 858         }
 859         push @comment, <$fd>;
 860         $tag{'comment'} = \@comment;
 861         close $fd or return;
 862         if (!defined $tag{'name'}) {
 863                 return
 864         };
 865         return %tag
 866 }
 867
 868 sub parse_commit {
 869         my $commit_id = shift;
 870         my $commit_text = shift;
 871
 872         my @commit_lines;
 873         my %co;
 874
 875         if (defined $commit_text) {
 876                 @commit_lines = @$commit_text;
 877         } else {
 878                 $/ = "\0";
 879                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id
 880                         or return;
 881                 @commit_lines = split '\n', <$fd>;
 882                 close $fd or return;
 883                 $/ = "\n";
 884                 pop @commit_lines;
 885         }
 886         my $header = shift @commit_lines;
 887         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 888                 return;
 889         }
 890         ($co{'id'}, my @parents) = split ' ', $header;
 891         $co{'parents'} = \@parents;
 892         $co{'parent'} = $parents[0];
 893         while (my $line = shift @commit_lines) {
 894                 last if $line eq "\n";
 895                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 896                         $co{'tree'} = $1;
 897                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 898                         $co{'author'} = $1;
 899                         $co{'author_epoch'} = $2;
 900                         $co{'author_tz'} = $3;
 901                         if ($co{'author'} =~ m/^([^<]+) </) {
 902                                 $co{'author_name'} = $1;
 903                         } else {
 904                                 $co{'author_name'} = $co{'author'};
 905                         }
 906                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 907                         $co{'committer'} = $1;
 908                         $co{'committer_epoch'} = $2;
 909                         $co{'committer_tz'} = $3;
 910                         $co{'committer_name'} = $co{'committer'};
 911                         $co{'committer_name'} =~ s/ <.*//;
 912                 }
 913         }
 914         if (!defined $co{'tree'}) {
 915                 return;
 916         };
 917
 918         foreach my $title (@commit_lines) {
 919                 $title =~ s/^    //;
 920                 if ($title ne "") {
 921                         $co{'title'} = chop_str($title, 80, 5);
 922                         # remove leading stuff of merges to make the interesting part visible
 923                         if (length($title) > 50) {
 924                                 $title =~ s/^Automatic //;
 925                                 $title =~ s/^merge (of|with) /Merge ... /i;
 926                                 if (length($title) > 50) {
 927                                         $title =~ s/(http|rsync):\/\///;
 928                                 }
 929                                 if (length($title) > 50) {
 930                                         $title =~ s/(master|www|rsync)\.//;
 931                                 }
 932                                 if (length($title) > 50) {
 933                                         $title =~ s/kernel.org:?//;
 934                                 }
 935                                 if (length($title) > 50) {
 936                                         $title =~ s/\/pub\/scm//;
 937                                 }
 938                         }
 939                         $co{'title_short'} = chop_str($title, 50, 5);
 940                         last;
 941                 }
 942         }
 943         # remove added spaces
 944         foreach my $line (@commit_lines) {
 945                 $line =~ s/^    //;
 946         }
 947         $co{'comment'} = \@commit_lines;
 948
 949         my $age = time - $co{'committer_epoch'};
 950         $co{'age'} = $age;
 951         $co{'age_string'} = age_string($age);
 952         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 953         if ($age > 60*60*24*7*2) {
 954                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 955                 $co{'age_string_age'} = $co{'age_string'};
 956         } else {
 957                 $co{'age_string_date'} = $co{'age_string'};
 958                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 959         }
 960         return %co;
 961 }
 962
 963 # parse ref from ref_file, given by ref_id, with given type
 964 sub parse_ref {
 965         my $ref_file = shift;
 966         my $ref_id = shift;
 967         my $type = shift || git_get_type($ref_id);
 968         my %ref_item;
 969
 970         $ref_item{'type'} = $type;
 971         $ref_item{'id'} = $ref_id;
 972         $ref_item{'epoch'} = 0;
 973         $ref_item{'age'} = "unknown";
 974         if ($type eq "tag") {
 975                 my %tag = parse_tag($ref_id);
 976                 $ref_item{'comment'} = $tag{'comment'};
 977                 if ($tag{'type'} eq "commit") {
 978                         my %co = parse_commit($tag{'object'});
 979                         $ref_item{'epoch'} = $co{'committer_epoch'};
 980                         $ref_item{'age'} = $co{'age_string'};
 981                 } elsif (defined($tag{'epoch'})) {
 982                         my $age = time - $tag{'epoch'};
 983                         $ref_item{'epoch'} = $tag{'epoch'};
 984                         $ref_item{'age'} = age_string($age);
 985                 }
 986                 $ref_item{'reftype'} = $tag{'type'};
 987                 $ref_item{'name'} = $tag{'name'};
 988                 $ref_item{'refid'} = $tag{'object'};
 989         } elsif ($type eq "commit"){
 990                 my %co = parse_commit($ref_id);
 991                 $ref_item{'reftype'} = "commit";
 992                 $ref_item{'name'} = $ref_file;
 993                 $ref_item{'title'} = $co{'title'};
 994                 $ref_item{'refid'} = $ref_id;
 995                 $ref_item{'epoch'} = $co{'committer_epoch'};
 996                 $ref_item{'age'} = $co{'age_string'};
 997         } else {
 998                 $ref_item{'reftype'} = $type;
 999                 $ref_item{'name'} = $ref_file;
1000                 $ref_item{'refid'} = $ref_id;
1001         }
1002
1003         return %ref_item;
1004 }
1005
1006 # parse line of git-diff-tree "raw" output
1007 sub parse_difftree_raw_line {
1008         my $line = shift;
1009         my %res;
1010
1011         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1012         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1013         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1014                 $res{'from_mode'} = $1;
1015                 $res{'to_mode'} = $2;
1016                 $res{'from_id'} = $3;
1017                 $res{'to_id'} = $4;
1018                 $res{'status'} = $5;
1019                 $res{'similarity'} = $6;
1020                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1021                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1022                 } else {
1023                         $res{'file'} = unquote($7);
1024                 }
1025         }
1026         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1027         #elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1028         #       $res{'commit'} = $1;
1029         #}
1030
1031         return wantarray ? %res : \%res;
1032 }
1033
1034 ## ......................................................................
1035 ## parse to array of hashes functions
1036
1037 sub git_get_refs_list {
1038         my $ref_dir = shift;
1039         my @reflist;
1040
1041         my @refs;
1042         my $pfxlen = length("$projectroot/$project/$ref_dir");
1043         File::Find::find(sub {
1044                 return if (/^\./);
1045                 if (-f $_) {
1046                         push @refs, substr($File::Find::name, $pfxlen + 1);
1047                 }
1048         }, "$projectroot/$project/$ref_dir");
1049
1050         foreach my $ref_file (@refs) {
1051                 my $ref_id = git_get_hash_by_ref("$project/$ref_dir/$ref_file");
1052                 my $type = git_get_type($ref_id) || next;
1053                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1054
1055                 push @reflist, \%ref_item;
1056         }
1057         # sort refs by age
1058         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1059         return \@reflist;
1060 }
1061
1062 ## ----------------------------------------------------------------------
1063 ## filesystem-related functions
1064
1065 sub get_file_owner {
1066         my $path = shift;
1067
1068         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1069         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1070         if (!defined $gcos) {
1071                 return undef;
1072         }
1073         my $owner = $gcos;
1074         $owner =~ s/[,;].*$//;
1075         return decode("utf8", $owner, Encode::FB_DEFAULT);
1076 }
1077
1078 ## ......................................................................
1079 ## mimetype related functions
1080
1081 sub mimetype_guess_file {
1082         my $filename = shift;
1083         my $mimemap = shift;
1084         -r $mimemap or return undef;
1085
1086         my %mimemap;
1087         open(MIME, $mimemap) or return undef;
1088         while (<MIME>) {
1089                 next if m/^#/; # skip comments
1090                 my ($mime, $exts) = split(/\t+/);
1091                 if (defined $exts) {
1092                         my @exts = split(/\s+/, $exts);
1093                         foreach my $ext (@exts) {
1094                                 $mimemap{$ext} = $mime;
1095                         }
1096                 }
1097         }
1098         close(MIME);
1099
1100         $filename =~ /\.(.*?)$/;
1101         return $mimemap{$1};
1102 }
1103
1104 sub mimetype_guess {
1105         my $filename = shift;
1106         my $mime;
1107         $filename =~ /\./ or return undef;
1108
1109         if ($mimetypes_file) {
1110                 my $file = $mimetypes_file;
1111                 if ($file !~ m!^/!) { # if it is relative path
1112                         # it is relative to project
1113                         $file = "$projectroot/$project/$file";
1114                 }
1115                 $mime = mimetype_guess_file($filename, $file);
1116         }
1117         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1118         return $mime;
1119 }
1120
1121 sub blob_mimetype {
1122         my $fd = shift;
1123         my $filename = shift;
1124
1125         if ($filename) {
1126                 my $mime = mimetype_guess($filename);
1127                 $mime and return $mime;
1128         }
1129
1130         # just in case
1131         return $default_blob_plain_mimetype unless $fd;
1132
1133         if (-T $fd) {
1134                 return 'text/plain' .
1135                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1136         } elsif (! $filename) {
1137                 return 'application/octet-stream';
1138         } elsif ($filename =~ m/\.png$/i) {
1139                 return 'image/png';
1140         } elsif ($filename =~ m/\.gif$/i) {
1141                 return 'image/gif';
1142         } elsif ($filename =~ m/\.jpe?g$/i) {
1143                 return 'image/jpeg';
1144         } else {
1145                 return 'application/octet-stream';
1146         }
1147 }
1148
1149 ## ======================================================================
1150 ## functions printing HTML: header, footer, error page
1151
1152 sub git_header_html {
1153         my $status = shift || "200 OK";
1154         my $expires = shift;
1155
1156         my $title = "$site_name git";
1157         if (defined $project) {
1158                 $title .= " - $project";
1159                 if (defined $action) {
1160                         $title .= "/$action";
1161                         if (defined $file_name) {
1162                                 $title .= " - $file_name";
1163                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1164                                         $title .= "/";
1165                                 }
1166                         }
1167                 }
1168         }
1169         my $content_type;
1170         # require explicit support from the UA if we are to send the page as
1171         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1172         # we have to do this because MSIE sometimes globs '*/*', pretending to
1173         # support xhtml+xml but choking when it gets what it asked for.
1174         if (defined $cgi->http('HTTP_ACCEPT') &&
1175             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1176             $cgi->Accept('application/xhtml+xml') != 0) {
1177                 $content_type = 'application/xhtml+xml';
1178         } else {
1179                 $content_type = 'text/html';
1180         }
1181         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1182                            -status=> $status, -expires => $expires);
1183         print <<EOF;
1184 <?xml version="1.0" encoding="utf-8"?>
1185 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1186 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1187 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1188 <!-- git core binaries version $git_version -->
1189 <head>
1190 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1191 <meta name="generator" content="gitweb/$version git/$git_version"/>
1192 <meta name="robots" content="index, nofollow"/>
1193 <title>$title</title>
1194 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
1195 EOF
1196         if (defined $project) {
1197                 printf('<link rel="alternate" title="%s log" '.
1198                        'href="%s" type="application/rss+xml"/>'."\n",
1199                        esc_param($project), href(action=>"rss"));
1200         }
1201
1202         print "</head>\n" .
1203               "<body>\n" .
1204               "<div class=\"page_header\">\n" .
1205               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1206               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1207               "</a>\n";
1208         print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1209         if (defined $project) {
1210                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1211                 if (defined $action) {
1212                         print " / $action";
1213                 }
1214                 print "\n";
1215                 if (!defined $searchtext) {
1216                         $searchtext = "";
1217                 }
1218                 my $search_hash;
1219                 if (defined $hash_base) {
1220                         $search_hash = $hash_base;
1221                 } elsif (defined $hash) {
1222                         $search_hash = $hash;
1223                 } else {
1224                         $search_hash = "HEAD";
1225                 }
1226                 $cgi->param("a", "search");
1227                 $cgi->param("h", $search_hash);
1228                 print $cgi->startform(-method => "get", -action => $my_uri) .
1229                       "<div class=\"search\">\n" .
1230                       $cgi->hidden(-name => "p") . "\n" .
1231                       $cgi->hidden(-name => "a") . "\n" .
1232                       $cgi->hidden(-name => "h") . "\n" .
1233                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1234                       "</div>" .
1235                       $cgi->end_form() . "\n";
1236         }
1237         print "</div>\n";
1238 }
1239
1240 sub git_footer_html {
1241         print "<div class=\"page_footer\">\n";
1242         if (defined $project) {
1243                 my $descr = git_get_project_description($project);
1244                 if (defined $descr) {
1245                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1246                 }
1247                 print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
1248         } else {
1249                 print $cgi->a({-href => href(action=>"opml"), -class => "rss_logo"}, "OPML") . "\n";
1250         }
1251         print "</div>\n" .
1252               "</body>\n" .
1253               "</html>";
1254 }
1255
1256 sub die_error {
1257         my $status = shift || "403 Forbidden";
1258         my $error = shift || "Malformed query, file missing or permission denied";
1259
1260         git_header_html($status);
1261         print <<EOF;
1262 <div class="page_body">
1263 <br /><br />
1264 $status - $error
1265 <br />
1266 </div>
1267 EOF
1268         git_footer_html();
1269         exit;
1270 }
1271
1272 ## ----------------------------------------------------------------------
1273 ## functions printing or outputting HTML: navigation
1274
1275 sub git_print_page_nav {
1276         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1277         $extra = '' if !defined $extra; # pager or formats
1278
1279         my @navs = qw(summary shortlog log commit commitdiff tree);
1280         if ($suppress) {
1281                 @navs = grep { $_ ne $suppress } @navs;
1282         }
1283
1284         my %arg = map { $_ => {action=>$_} } @navs;
1285         if (defined $head) {
1286                 for (qw(commit commitdiff)) {
1287                         $arg{$_}{hash} = $head;
1288                 }
1289                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1290                         for (qw(shortlog log)) {
1291                                 $arg{$_}{hash} = $head;
1292                         }
1293                 }
1294         }
1295         $arg{tree}{hash} = $treehead if defined $treehead;
1296         $arg{tree}{hash_base} = $treebase if defined $treebase;
1297
1298         print "<div class=\"page_nav\">\n" .
1299                 (join " | ",
1300                  map { $_ eq $current ?
1301                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1302                  } @navs);
1303         print "<br/>\n$extra<br/>\n" .
1304               "</div>\n";
1305 }
1306
1307 sub format_paging_nav {
1308         my ($action, $hash, $head, $page, $nrevs) = @_;
1309         my $paging_nav;
1310
1311
1312         if ($hash ne $head || $page) {
1313                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1314         } else {
1315                 $paging_nav .= "HEAD";
1316         }
1317
1318         if ($page > 0) {
1319                 $paging_nav .= " &sdot; " .
1320                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1321                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1322         } else {
1323                 $paging_nav .= " &sdot; prev";
1324         }
1325
1326         if ($nrevs >= (100 * ($page+1)-1)) {
1327                 $paging_nav .= " &sdot; " .
1328                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1329                                  -accesskey => "n", -title => "Alt-n"}, "next");
1330         } else {
1331                 $paging_nav .= " &sdot; next";
1332         }
1333
1334         return $paging_nav;
1335 }
1336
1337 ## ......................................................................
1338 ## functions printing or outputting HTML: div
1339
1340 sub git_print_header_div {
1341         my ($action, $title, $hash, $hash_base) = @_;
1342         my %args = ();
1343
1344         $args{action} = $action;
1345         $args{hash} = $hash if $hash;
1346         $args{hash_base} = $hash_base if $hash_base;
1347
1348         print "<div class=\"header\">\n" .
1349               $cgi->a({-href => href(%args), -class => "title"},
1350               $title ? $title : $action) .
1351               "\n</div>\n";
1352 }
1353
1354 sub git_print_page_path {
1355         my $name = shift;
1356         my $type = shift;
1357         my $hb = shift;
1358
1359         if (!defined $name) {
1360                 print "<div class=\"page_path\">/</div>\n";
1361         } elsif (defined $type && $type eq 'blob') {
1362                 print "<div class=\"page_path\">";
1363                 if (defined $hb) {
1364                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1365                                                      hash_base=>$hb)},
1366                                       esc_html($name));
1367                 } else {
1368                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)},
1369                                       esc_html($name));
1370                 }
1371                 print "<br/></div>\n";
1372         } else {
1373                 print "<div class=\"page_path\">" . esc_html($name) . "<br/></div>\n";
1374         }
1375 }
1376
1377 sub git_print_log {
1378         my $log = shift;
1379
1380         # remove leading empty lines
1381         while (defined $log->[0] && $log->[0] eq "") {
1382                 shift @$log;
1383         }
1384
1385         # print log
1386         my $signoff = 0;
1387         my $empty = 0;
1388         foreach my $line (@$log) {
1389                 # print only one empty line
1390                 # do not print empty line after signoff
1391                 if ($line eq "") {
1392                         next if ($empty || $signoff);
1393                         $empty = 1;
1394                 } else {
1395                         $empty = 0;
1396                 }
1397                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1398                         $signoff = 1;
1399                         print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1400                 } else {
1401                         $signoff = 0;
1402                         print format_log_line_html($line) . "<br/>\n";
1403                 }
1404         }
1405 }
1406
1407 sub git_print_simplified_log {
1408         my $log = shift;
1409         my $remove_title = shift;
1410
1411         shift @$log if $remove_title;
1412         # remove leading empty lines
1413         while (defined $log->[0] && $log->[0] eq "") {
1414                 shift @$log;
1415         }
1416
1417         # simplify and print log
1418         my $empty = 0;
1419         foreach my $line (@$log) {
1420                 # remove signoff lines
1421                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1422                         next;
1423                 }
1424                 # print only one empty line
1425                 if ($line eq "") {
1426                         next if $empty;
1427                         $empty = 1;
1428                 } else {
1429                         $empty = 0;
1430                 }
1431                 print format_log_line_html($line) . "<br/>\n";
1432         }
1433         # end with single empty line
1434         print "<br/>\n" unless $empty;
1435 }
1436
1437 ## ......................................................................
1438 ## functions printing large fragments of HTML
1439
1440 sub git_difftree_body {
1441         my ($difftree, $hash, $parent) = @_;
1442
1443         print "<div class=\"list_head\">\n";
1444         if ($#{$difftree} > 10) {
1445                 print(($#{$difftree} + 1) . " files changed:\n");
1446         }
1447         print "</div>\n";
1448
1449         print "<table class=\"diff_tree\">\n";
1450         my $alternate = 0;
1451         foreach my $line (@{$difftree}) {
1452                 my %diff = parse_difftree_raw_line($line);
1453
1454                 if ($alternate) {
1455                         print "<tr class=\"dark\">\n";
1456                 } else {
1457                         print "<tr class=\"light\">\n";
1458                 }
1459                 $alternate ^= 1;
1460
1461                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1462                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1463                 if ($diff{'to_mode'} ne ('0' x 6)) {
1464                         $to_mode_oct = oct $diff{'to_mode'};
1465                         if (S_ISREG($to_mode_oct)) { # only for regular file
1466                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1467                         }
1468                         $to_file_type = file_type($diff{'to_mode'});
1469                 }
1470                 if ($diff{'from_mode'} ne ('0' x 6)) {
1471                         $from_mode_oct = oct $diff{'from_mode'};
1472                         if (S_ISREG($to_mode_oct)) { # only for regular file
1473                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1474                         }
1475                         $from_file_type = file_type($diff{'from_mode'});
1476                 }
1477
1478                 if ($diff{'status'} eq "A") { # created
1479                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1480                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1481                         $mode_chng   .= "]</span>";
1482                         print "<td>" .
1483                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1484                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1485                                       -class => "list"}, esc_html($diff{'file'})) .
1486                               "</td>\n" .
1487                               "<td>$mode_chng</td>\n" .
1488                               "<td class=\"link\">" .
1489                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1490                                                      hash_base=>$hash, file_name=>$diff{'file'})},
1491                                       "blob") .
1492                               "</td>\n";
1493
1494                 } elsif ($diff{'status'} eq "D") { # deleted
1495                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1496                         print "<td>" .
1497                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1498                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1499                                        -class => "list"}, esc_html($diff{'file'})) .
1500                               "</td>\n" .
1501                               "<td>$mode_chng</td>\n" .
1502                               "<td class=\"link\">" .
1503                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1504                                                      hash_base=>$parent, file_name=>$diff{'file'})},
1505                                       "blob") .
1506                               " | " .
1507                               $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1508                                                      file_name=>$diff{'file'})},\
1509                                       "history") .
1510                               "</td>\n";
1511
1512                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1513                         my $mode_chnge = "";
1514                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1515                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1516                                 if ($from_file_type != $to_file_type) {
1517                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1518                                 }
1519                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1520                                         if ($from_mode_str && $to_mode_str) {
1521                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1522                                         } elsif ($to_mode_str) {
1523                                                 $mode_chnge .= " mode: $to_mode_str";
1524                                         }
1525                                 }
1526                                 $mode_chnge .= "]</span>\n";
1527                         }
1528                         print "<td>";
1529                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1530                                 print $cgi->a({-href => href(action=>"blobdiff", hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1531                                                              hash_base=>$hash, file_name=>$diff{'file'}),
1532                                               -class => "list"}, esc_html($diff{'file'}));
1533                         } else { # only mode changed
1534                                 print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1535                                                              hash_base=>$hash, file_name=>$diff{'file'}),
1536                                               -class => "list"}, esc_html($diff{'file'}));
1537                         }
1538                         print "</td>\n" .
1539                               "<td>$mode_chnge</td>\n" .
1540                               "<td class=\"link\">" .
1541                                 $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1542                                                        hash_base=>$hash, file_name=>$diff{'file'})},
1543                                         "blob");
1544                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1545                                 print " | " .
1546                                         $cgi->a({-href => href(action=>"blobdiff", hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1547                                                                hash_base=>$hash, file_name=>$diff{'file'})},
1548                                                 "diff");
1549                         }
1550                         print " | " .
1551                                 $cgi->a({-href => href(action=>"history",
1552                                                        hash_base=>$hash, file_name=>$diff{'file'})},
1553                                         "history");
1554                         print "</td>\n";
1555
1556                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1557                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1558                         my $nstatus = $status_name{$diff{'status'}};
1559                         my $mode_chng = "";
1560                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1561                                 # mode also for directories, so we cannot use $to_mode_str
1562                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1563                         }
1564                         print "<td>" .
1565                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1566                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1567                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1568                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1569                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1570                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1571                                       -class => "list"}, esc_html($diff{'from_file'})) .
1572                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1573                               "<td class=\"link\">" .
1574                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1575                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
1576                                       "blob");
1577                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1578                                 print " | " .
1579                                         $cgi->a({-href => href(action=>"blobdiff", hash_base=>$hash,
1580                                                                hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1581                                                                file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1582                                                 "diff");
1583                         }
1584                         print "</td>\n";
1585
1586                 } # we should not encounter Unmerged (U) or Unknown (X) status
1587                 print "</tr>\n";
1588         }
1589         print "</table>\n";
1590 }
1591
1592 sub git_patchset_body {
1593         my ($fd, $difftree, $hash, $hash_parent) = @_;
1594
1595         my $patch_idx = 0;
1596         my $in_header = 0;
1597         my $patch_found = 0;
1598         my %diffinfo;
1599
1600         print "<div class=\"patchset\">\n";
1601
1602         LINE:
1603         while (my $patch_line @$fd>) {
1604                 chomp $patch_line;
1605
1606                 if ($patch_line =~ m/^diff /) { # "git diff" header
1607                         # beginning of patch (in patchset)
1608                         if ($patch_found) {
1609                                 # close previous patch
1610                                 print "</div>\n"; # class="patch"
1611                         } else {
1612                                 # first patch in patchset
1613                                 $patch_found = 1;
1614                         }
1615                         print "<div class=\"patch\">\n";
1616
1617                         %diffinfo = parse_difftree_raw_line($difftree->[$patch_idx++]);
1618
1619                         # for now, no extended header, hence we skip empty patches
1620                         # companion to  next LINE if $in_header;
1621                         if ($diffinfo{'from_id'} eq $diffinfo{'to_id'}) { # no change
1622                                 $in_header = 1;
1623                                 next LINE;
1624                         }
1625
1626                         if ($diffinfo{'status'} eq "A") { # added
1627                                 print "<div class=\"diff_info\">" . file_type($diffinfo{'to_mode'}) . ":" .
1628                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1629                                                              hash=>$diffinfo{'to_id'}, file_name=>$diffinfo{'file'})},
1630                                               $diffinfo{'to_id'}) . "(new)" .
1631                                       "</div>\n"; # class="diff_info"
1632
1633                         } elsif ($diffinfo{'status'} eq "D") { # deleted
1634                                 print "<div class=\"diff_info\">" . file_type($diffinfo{'from_mode'}) . ":" .
1635                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1636                                                              hash=>$diffinfo{'from_id'}, file_name=>$diffinfo{'file'})},
1637                                               $diffinfo{'from_id'}) . "(deleted)" .
1638                                       "</div>\n"; # class="diff_info"
1639
1640                         } elsif ($diffinfo{'status'} eq "R" || # renamed
1641                                  $diffinfo{'status'} eq "C") { # copied
1642                                 print "<div class=\"diff_info\">" .
1643                                       file_type($diffinfo{'from_mode'}) . ":" .
1644                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1645                                                              hash=>$diffinfo{'from_id'}, file_name=>$diffinfo{'from_file'})},
1646                                               $diffinfo{'from_id'}) .
1647                                       " -> " .
1648                                       file_type($diffinfo{'to_mode'}) . ":" .
1649                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1650                                                              hash=>$diffinfo{'to_id'}, file_name=>$diffinfo{'to_file'})},
1651                                               $diffinfo{'to_id'});
1652                                 print "</div>\n"; # class="diff_info"
1653
1654                         } else { # modified, mode changed, ...
1655                                 print "<div class=\"diff_info\">" .
1656                                       file_type($diffinfo{'from_mode'}) . ":" .
1657                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1658                                                              hash=>$diffinfo{'from_id'}, file_name=>$diffinfo{'file'})},
1659                                               $diffinfo{'from_id'}) .
1660                                       " -> " .
1661                                       file_type($diffinfo{'to_mode'}) . ":" .
1662                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1663                                                              hash=>$diffinfo{'to_id'}, file_name=>$diffinfo{'file'})},
1664                                               $diffinfo{'to_id'});
1665                                 print "</div>\n"; # class="diff_info"
1666                         }
1667
1668                         #print "<div class=\"diff extended_header\">\n";
1669                         $in_header = 1;
1670                         next LINE;
1671                 } # start of patch in patchset
1672
1673
1674                 if ($in_header && $patch_line =~ m/^---/) {
1675                         #print "</div>\n"
1676                         $in_header = 0;
1677                 }
1678                 next LINE if $in_header;
1679
1680                 print format_diff_line($patch_line);
1681         }
1682         print "</div>\n" if $patch_found; # class="patch"
1683
1684         print "</div>\n"; # class="patchset"
1685 }
1686
1687 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1688
1689 sub git_shortlog_body {
1690         # uses global variable $project
1691         my ($revlist, $from, $to, $refs, $extra) = @_;
1692
1693         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
1694         my $have_snapshot = (defined $ctype && defined $suffix);
1695
1696         $from = 0 unless defined $from;
1697         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1698
1699         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1700         my $alternate = 0;
1701         for (my $i = $from; $i <= $to; $i++) {
1702                 my $commit = $revlist->[$i];
1703                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1704                 my $ref = format_ref_marker($refs, $commit);
1705                 my %co = parse_commit($commit);
1706                 if ($alternate) {
1707                         print "<tr class=\"dark\">\n";
1708                 } else {
1709                         print "<tr class=\"light\">\n";
1710                 }
1711                 $alternate ^= 1;
1712                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1713                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1714                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1715                       "<td>";
1716                 print format_subject_html($co{'title'}, $co{'title_short'},
1717                                           href(action=>"commit", hash=>$commit), $ref);
1718                 print "</td>\n" .
1719                       "<td class=\"link\">" .
1720                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1721                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
1722                 if ($have_snapshot) {
1723                         print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
1724                 }
1725                 print "</td>\n" .
1726                       "</tr>\n";
1727         }
1728         if (defined $extra) {
1729                 print "<tr>\n" .
1730                       "<td colspan=\"4\">$extra</td>\n" .
1731                       "</tr>\n";
1732         }
1733         print "</table>\n";
1734 }
1735
1736 sub git_history_body {
1737         # Warning: assumes constant type (blob or tree) during history
1738         my ($fd, $refs, $hash_base, $ftype, $extra) = @_;
1739
1740         print "<table class=\"history\" cellspacing=\"0\">\n";
1741         my $alternate = 0;
1742         while (my $line = <$fd>) {
1743                 if ($line !~ m/^([0-9a-fA-F]{40})/) {
1744                         next;
1745                 }
1746
1747                 my $commit = $1;
1748                 my %co = parse_commit($commit);
1749                 if (!%co) {
1750                         next;
1751                 }
1752
1753                 my $ref = format_ref_marker($refs, $commit);
1754
1755                 if ($alternate) {
1756                         print "<tr class=\"dark\">\n";
1757                 } else {
1758                         print "<tr class=\"light\">\n";
1759                 }
1760                 $alternate ^= 1;
1761                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1762                       # shortlog uses      chop_str($co{'author_name'}, 10)
1763                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
1764                       "<td>";
1765                 # originally git_history used chop_str($co{'title'}, 50)
1766                 print format_subject_html($co{'title'}, $co{'title_short'},
1767                                           href(action=>"commit", hash=>$commit), $ref);
1768                 print "</td>\n" .
1769                       "<td class=\"link\">" .
1770                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1771                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
1772                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
1773
1774                 if ($ftype eq 'blob') {
1775                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
1776                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
1777                         if (defined $blob_current && defined $blob_parent &&
1778                                         $blob_current ne $blob_parent) {
1779                                 print " | " .
1780                                         $cgi->a({-href => href(action=>"blobdiff", hash=>$blob_current, hash_parent=>$blob_parent,
1781                                                                hash_base=>$commit, file_name=>$file_name)},
1782                                                 "diff to current");
1783                         }
1784                 }
1785                 print "</td>\n" .
1786                       "</tr>\n";
1787         }
1788         if (defined $extra) {
1789                 print "<tr>\n" .
1790                       "<td colspan=\"4\">$extra</td>\n" .
1791                       "</tr>\n";
1792         }
1793         print "</table>\n";
1794 }
1795
1796 sub git_tags_body {
1797         # uses global variable $project
1798         my ($taglist, $from, $to, $extra) = @_;
1799         $from = 0 unless defined $from;
1800         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1801
1802         print "<table class=\"tags\" cellspacing=\"0\">\n";
1803         my $alternate = 0;
1804         for (my $i = $from; $i <= $to; $i++) {
1805                 my $entry = $taglist->[$i];
1806                 my %tag = %$entry;
1807                 my $comment_lines = $tag{'comment'};
1808                 my $comment = shift @$comment_lines;
1809                 my $comment_short;
1810                 if (defined $comment) {
1811                         $comment_short = chop_str($comment, 30, 5);
1812                 }
1813                 if ($alternate) {
1814                         print "<tr class=\"dark\">\n";
1815                 } else {
1816                         print "<tr class=\"light\">\n";
1817                 }
1818                 $alternate ^= 1;
1819                 print "<td><i>$tag{'age'}</i></td>\n" .
1820                       "<td>" .
1821                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
1822                                -class => "list name"}, esc_html($tag{'name'})) .
1823                       "</td>\n" .
1824                       "<td>";
1825                 if (defined $comment) {
1826                         print format_subject_html($comment, $comment_short,
1827                                                   href(action=>"tag", hash=>$tag{'id'}));
1828                 }
1829                 print "</td>\n" .
1830                       "<td class=\"selflink\">";
1831                 if ($tag{'type'} eq "tag") {
1832                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
1833                 } else {
1834                         print "&nbsp;";
1835                 }
1836                 print "</td>\n" .
1837                       "<td class=\"link\">" . " | " .
1838                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
1839                 if ($tag{'reftype'} eq "commit") {
1840                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
1841                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
1842                 } elsif ($tag{'reftype'} eq "blob") {
1843                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
1844                 }
1845                 print "</td>\n" .
1846                       "</tr>";
1847         }
1848         if (defined $extra) {
1849                 print "<tr>\n" .
1850                       "<td colspan=\"5\">$extra</td>\n" .
1851                       "</tr>\n";
1852         }
1853         print "</table>\n";
1854 }
1855
1856 sub git_heads_body {
1857         # uses global variable $project
1858         my ($taglist, $head, $from, $to, $extra) = @_;
1859         $from = 0 unless defined $from;
1860         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1861
1862         print "<table class=\"heads\" cellspacing=\"0\">\n";
1863         my $alternate = 0;
1864         for (my $i = $from; $i <= $to; $i++) {
1865                 my $entry = $taglist->[$i];
1866                 my %tag = %$entry;
1867                 my $curr = $tag{'id'} eq $head;
1868                 if ($alternate) {
1869                         print "<tr class=\"dark\">\n";
1870                 } else {
1871                         print "<tr class=\"light\">\n";
1872                 }
1873                 $alternate ^= 1;
1874                 print "<td><i>$tag{'age'}</i></td>\n" .
1875                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
1876                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
1877                                -class => "list name"},esc_html($tag{'name'})) .
1878                       "</td>\n" .
1879                       "<td class=\"link\">" .
1880                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
1881                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
1882                       "</td>\n" .
1883                       "</tr>";
1884         }
1885         if (defined $extra) {
1886                 print "<tr>\n" .
1887                       "<td colspan=\"3\">$extra</td>\n" .
1888                       "</tr>\n";
1889         }
1890         print "</table>\n";
1891 }
1892
1893 ## ----------------------------------------------------------------------
1894 ## functions printing large fragments, format as one of arguments
1895
1896 sub git_diff_print {
1897         my $from = shift;
1898         my $from_name = shift;
1899         my $to = shift;
1900         my $to_name = shift;
1901         my $format = shift || "html";
1902
1903         my $from_tmp = "/dev/null";
1904         my $to_tmp = "/dev/null";
1905         my $pid = $$;
1906
1907         # create tmp from-file
1908         if (defined $from) {
1909                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
1910                 open my $fd2, "> $from_tmp";
1911                 open my $fd, "-|", $GIT, "cat-file", "blob", $from;
1912                 my @file = <$fd>;
1913                 print $fd2 @file;
1914                 close $fd2;
1915                 close $fd;
1916         }
1917
1918         # create tmp to-file
1919         if (defined $to) {
1920                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
1921                 open my $fd2, "> $to_tmp";
1922                 open my $fd, "-|", $GIT, "cat-file", "blob", $to;
1923                 my @file = <$fd>;
1924                 print $fd2 @file;
1925                 close $fd2;
1926                 close $fd;
1927         }
1928
1929         open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
1930         if ($format eq "plain") {
1931                 undef $/;
1932                 print <$fd>;
1933                 $/ = "\n";
1934         } else {
1935                 while (my $line = <$fd>) {
1936                         chomp $line;
1937                         my $char = substr($line, 0, 1);
1938                         my $diff_class = "";
1939                         if ($char eq '+') {
1940                                 $diff_class = " add";
1941                         } elsif ($char eq "-") {
1942                                 $diff_class = " rem";
1943                         } elsif ($char eq "@") {
1944                                 $diff_class = " chunk_header";
1945                         } elsif ($char eq "\\") {
1946                                 # skip errors
1947                                 next;
1948                         }
1949                         $line = untabify($line);
1950                         print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
1951                 }
1952         }
1953         close $fd;
1954
1955         if (defined $from) {
1956                 unlink($from_tmp);
1957         }
1958         if (defined $to) {
1959                 unlink($to_tmp);
1960         }
1961 }
1962
1963
1964 ## ======================================================================
1965 ## ======================================================================
1966 ## actions
1967
1968 sub git_project_list {
1969         my $order = $cgi->param('o');
1970         if (defined $order && $order !~ m/project|descr|owner|age/) {
1971                 die_error(undef, "Unknown order parameter");
1972         }
1973
1974         my @list = git_get_projects_list();
1975         my @projects;
1976         if (!@list) {
1977                 die_error(undef, "No projects found");
1978         }
1979         foreach my $pr (@list) {
1980                 my $head = git_get_head_hash($pr->{'path'});
1981                 if (!defined $head) {
1982                         next;
1983                 }
1984                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
1985                 my %co = parse_commit($head);
1986                 if (!%co) {
1987                         next;
1988                 }
1989                 $pr->{'commit'} = \%co;
1990                 if (!defined $pr->{'descr'}) {
1991                         my $descr = git_get_project_description($pr->{'path'}) || "";
1992                         $pr->{'descr'} = chop_str($descr, 25, 5);
1993                 }
1994                 if (!defined $pr->{'owner'}) {
1995                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
1996                 }
1997                 push @projects, $pr;
1998         }
1999
2000         git_header_html();
2001         if (-f $home_text) {
2002                 print "<div class=\"index_include\">\n";
2003                 open (my $fd, $home_text);
2004                 print <$fd>;
2005                 close $fd;
2006                 print "</div>\n";
2007         }
2008         print "<table class=\"project_list\">\n" .
2009               "<tr>\n";
2010         $order ||= "project";
2011         if ($order eq "project") {
2012                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2013                 print "<th>Project</th>\n";
2014         } else {
2015                 print "<th>" .
2016                       $cgi->a({-href => "$my_uri?" . esc_param("o=project"),
2017                                -class => "header"}, "Project") .
2018                       "</th>\n";
2019         }
2020         if ($order eq "descr") {
2021                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2022                 print "<th>Description</th>\n";
2023         } else {
2024                 print "<th>" .
2025                       $cgi->a({-href => "$my_uri?" . esc_param("o=descr"),
2026                                -class => "header"}, "Description") .
2027                       "</th>\n";
2028         }
2029         if ($order eq "owner") {
2030                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2031                 print "<th>Owner</th>\n";
2032         } else {
2033                 print "<th>" .
2034                       $cgi->a({-href => "$my_uri?" . esc_param("o=owner"),
2035                                -class => "header"}, "Owner") .
2036                       "</th>\n";
2037         }
2038         if ($order eq "age") {
2039                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2040                 print "<th>Last Change</th>\n";
2041         } else {
2042                 print "<th>" .
2043                       $cgi->a({-href => "$my_uri?" . esc_param("o=age"),
2044                                -class => "header"}, "Last Change") .
2045                       "</th>\n";
2046         }
2047         print "<th></th>\n" .
2048               "</tr>\n";
2049         my $alternate = 0;
2050         foreach my $pr (@projects) {
2051                 if ($alternate) {
2052                         print "<tr class=\"dark\">\n";
2053                 } else {
2054                         print "<tr class=\"light\">\n";
2055                 }
2056                 $alternate ^= 1;
2057                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2058                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2059                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2060                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2061                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2062                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2063                       "<td class=\"link\">" .
2064                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2065                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2066                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
2067                       "</td>\n" .
2068                       "</tr>\n";
2069         }
2070         print "</table>\n";
2071         git_footer_html();
2072 }
2073
2074 sub git_summary {
2075         my $descr = git_get_project_description($project) || "none";
2076         my $head = git_get_head_hash($project);
2077         my %co = parse_commit($head);
2078         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2079
2080         my $owner = git_get_project_owner($project);
2081
2082         my $refs = git_get_references();
2083         git_header_html();
2084         git_print_page_nav('summary','', $head);
2085
2086         print "<div class=\"title\">&nbsp;</div>\n";
2087         print "<table cellspacing=\"0\">\n" .
2088               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2089               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2090               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2091         # use per project git URL list in $projectroot/$project/cloneurl
2092         # or make project git URL from git base URL and project name
2093         my $url_tag = "URL";
2094         my @url_list = git_get_project_url_list($project);
2095         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2096         foreach my $git_url (@url_list) {
2097                 next unless $git_url;
2098                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2099                 $url_tag = "";
2100         }
2101         print "</table>\n";
2102
2103         open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_get_head_hash($project)
2104                 or die_error(undef, "Open git-rev-list failed");
2105         my @revlist = map { chomp; $_ } <$fd>;
2106         close $fd;
2107         git_print_header_div('shortlog');
2108         git_shortlog_body(\@revlist, 0, 15, $refs,
2109                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2110
2111         my $taglist = git_get_refs_list("refs/tags");
2112         if (defined @$taglist) {
2113                 git_print_header_div('tags');
2114                 git_tags_body($taglist, 0, 15,
2115                               $cgi->a({-href => href(action=>"tags")}, "..."));
2116         }
2117
2118         my $headlist = git_get_refs_list("refs/heads");
2119         if (defined @$headlist) {
2120                 git_print_header_div('heads');
2121                 git_heads_body($headlist, $head, 0, 15,
2122                                $cgi->a({-href => href(action=>"heads")}, "..."));
2123         }
2124
2125         git_footer_html();
2126 }
2127
2128 sub git_tag {
2129         my $head = git_get_head_hash($project);
2130         git_header_html();
2131         git_print_page_nav('','', $head,undef,$head);
2132         my %tag = parse_tag($hash);
2133         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2134         print "<div class=\"title_text\">\n" .
2135               "<table cellspacing=\"0\">\n" .
2136               "<tr>\n" .
2137               "<td>object</td>\n" .
2138               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2139                                $tag{'object'}) . "</td>\n" .
2140               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2141                                               $tag{'type'}) . "</td>\n" .
2142               "</tr>\n";
2143         if (defined($tag{'author'})) {
2144                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2145                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2146                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2147                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2148                         "</td></tr>\n";
2149         }
2150         print "</table>\n\n" .
2151               "</div>\n";
2152         print "<div class=\"page_body\">";
2153         my $comment = $tag{'comment'};
2154         foreach my $line (@$comment) {
2155                 print esc_html($line) . "<br/>\n";
2156         }
2157         print "</div>\n";
2158         git_footer_html();
2159 }
2160
2161 sub git_blame2 {
2162         my $fd;
2163         my $ftype;
2164
2165         if (!gitweb_check_feature('blame')) {
2166                 die_error('403 Permission denied', "Permission denied");
2167         }
2168         die_error('404 Not Found', "File name not defined") if (!$file_name);
2169         $hash_base ||= git_get_head_hash($project);
2170         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2171         my %co = parse_commit($hash_base)
2172                 or die_error(undef, "Reading commit failed");
2173         if (!defined $hash) {
2174                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2175                         or die_error(undef, "Error looking up file");
2176         }
2177         $ftype = git_get_type($hash);
2178         if ($ftype !~ "blob") {
2179                 die_error("400 Bad Request", "Object is not a blob");
2180         }
2181         open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
2182                 or die_error(undef, "Open git-blame failed");
2183         git_header_html();
2184         my $formats_nav =
2185                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2186                         "blob") .
2187                 " | " .
2188                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2189                         "head");
2190         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2191         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2192         git_print_page_path($file_name, $ftype, $hash_base);
2193         my @rev_color = (qw(light2 dark2));
2194         my $num_colors = scalar(@rev_color);
2195         my $current_color = 0;
2196         my $last_rev;
2197         print <<HTML;
2198 <div class="page_body">
2199 <table class="blame">
2200 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2201 HTML
2202         while (<$fd>) {
2203                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2204                 my $full_rev = $1;
2205                 my $rev = substr($full_rev, 0, 8);
2206                 my $lineno = $2;
2207                 my $data = $3;
2208
2209                 if (!defined $last_rev) {
2210                         $last_rev = $full_rev;
2211                 } elsif ($last_rev ne $full_rev) {
2212                         $last_rev = $full_rev;
2213                         $current_color = ++$current_color % $num_colors;
2214                 }
2215                 print "<tr class=\"$rev_color[$current_color]\">\n";
2216                 print "<td class=\"sha1\">" .
2217                         $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2218                                 esc_html($rev)) . "</td>\n";
2219                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2220                       esc_html($lineno) . "</a></td>\n";
2221                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2222                 print "</tr>\n";
2223         }
2224         print "</table>\n";
2225         print "</div>";
2226         close $fd
2227                 or print "Reading blob failed\n";
2228         git_footer_html();
2229 }
2230
2231 sub git_blame {
2232         my $fd;
2233
2234         if (!gitweb_check_feature('blame')) {
2235                 die_error('403 Permission denied', "Permission denied");
2236         }
2237         die_error('404 Not Found', "File name not defined") if (!$file_name);
2238         $hash_base ||= git_get_head_hash($project);
2239         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2240         my %co = parse_commit($hash_base)
2241                 or die_error(undef, "Reading commit failed");
2242         if (!defined $hash) {
2243                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2244                         or die_error(undef, "Error lookup file");
2245         }
2246         open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2247                 or die_error(undef, "Open git-annotate failed");
2248         git_header_html();
2249         my $formats_nav =
2250                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2251                         "blob") .
2252                 " | " .
2253                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2254                         "head");
2255         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2256         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2257         git_print_page_path($file_name, 'blob', $hash_base);
2258         print "<div class=\"page_body\">\n";
2259         print <<HTML;
2260 <table class="blame">
2261   <tr>
2262     <th>Commit</th>
2263     <th>Age</th>
2264     <th>Author</th>
2265     <th>Line</th>
2266     <th>Data</th>
2267   </tr>
2268 HTML
2269         my @line_class = (qw(light dark));
2270         my $line_class_len = scalar (@line_class);
2271         my $line_class_num = $#line_class;
2272         while (my $line = <$fd>) {
2273                 my $long_rev;
2274                 my $short_rev;
2275                 my $author;
2276                 my $time;
2277                 my $lineno;
2278                 my $data;
2279                 my $age;
2280                 my $age_str;
2281                 my $age_class;
2282
2283                 chomp $line;
2284                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2285
2286                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
2287                         $long_rev = $1;
2288                         $author   = $2;
2289                         $time     = $3;
2290                         $lineno   = $4;
2291                         $data     = $5;
2292                 } else {
2293                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2294                         next;
2295                 }
2296                 $short_rev  = substr ($long_rev, 0, 8);
2297                 $age        = time () - $time;
2298                 $age_str    = age_string ($age);
2299                 $age_str    =~ s/ /&nbsp;/g;
2300                 $age_class  = age_class($age);
2301                 $author     = esc_html ($author);
2302                 $author     =~ s/ /&nbsp;/g;
2303
2304                 $data = untabify($data);
2305                 $data = esc_html ($data);
2306
2307                 print <<HTML;
2308   <tr class="$line_class[$line_class_num]">
2309     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2310     <td class="$age_class">$age_str</td>
2311     <td>$author</td>
2312     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2313     <td class="pre">$data</td>
2314   </tr>
2315 HTML
2316         } # while (my $line = <$fd>)
2317         print "</table>\n\n";
2318         close $fd
2319                 or print "Reading blob failed.\n";
2320         print "</div>";
2321         git_footer_html();
2322 }
2323
2324 sub git_tags {
2325         my $head = git_get_head_hash($project);
2326         git_header_html();
2327         git_print_page_nav('','', $head,undef,$head);
2328         git_print_header_div('summary', $project);
2329
2330         my $taglist = git_get_refs_list("refs/tags");
2331         if (defined @$taglist) {
2332                 git_tags_body($taglist);
2333         }
2334         git_footer_html();
2335 }
2336
2337 sub git_heads {
2338         my $head = git_get_head_hash($project);
2339         git_header_html();
2340         git_print_page_nav('','', $head,undef,$head);
2341         git_print_header_div('summary', $project);
2342
2343         my $taglist = git_get_refs_list("refs/heads");
2344         if (defined @$taglist) {
2345                 git_heads_body($taglist, $head);
2346         }
2347         git_footer_html();
2348 }
2349
2350 sub git_blob_plain {
2351         if (!defined $hash) {
2352                 if (defined $file_name) {
2353                         my $base = $hash_base || git_get_head_hash($project);
2354                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2355                                 or die_error(undef, "Error lookup file");
2356                 } else {
2357                         die_error(undef, "No file name defined");
2358                 }
2359         }
2360         my $type = shift;
2361         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
2362                 or die_error(undef, "Couldn't cat $file_name, $hash");
2363
2364         $type ||= blob_mimetype($fd, $file_name);
2365
2366         # save as filename, even when no $file_name is given
2367         my $save_as = "$hash";
2368         if (defined $file_name) {
2369                 $save_as = $file_name;
2370         } elsif ($type =~ m/^text\//) {
2371                 $save_as .= '.txt';
2372         }
2373
2374         print $cgi->header(-type => "$type",
2375                            -content_disposition => "inline; filename=\"$save_as\"");
2376         undef $/;
2377         binmode STDOUT, ':raw';
2378         print <$fd>;
2379         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2380         $/ = "\n";
2381         close $fd;
2382 }
2383
2384 sub git_blob {
2385         if (!defined $hash) {
2386                 if (defined $file_name) {
2387                         my $base = $hash_base || git_get_head_hash($project);
2388                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2389                                 or die_error(undef, "Error lookup file");
2390                 } else {
2391                         die_error(undef, "No file name defined");
2392                 }
2393         }
2394         my $have_blame = gitweb_check_feature('blame');
2395         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
2396                 or die_error(undef, "Couldn't cat $file_name, $hash");
2397         my $mimetype = blob_mimetype($fd, $file_name);
2398         if ($mimetype !~ m/^text\//) {
2399                 close $fd;
2400                 return git_blob_plain($mimetype);
2401         }
2402         git_header_html();
2403         my $formats_nav = '';
2404         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2405                 if (defined $file_name) {
2406                         if ($have_blame) {
2407                                 $formats_nav .=
2408                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2409                                                                hash=>$hash, file_name=>$file_name)},
2410                                                 "blame") .
2411                                         " | ";
2412                         }
2413                         $formats_nav .=
2414                                 $cgi->a({-href => href(action=>"blob_plain",
2415                                                        hash=>$hash, file_name=>$file_name)},
2416                                         "plain") .
2417                                 " | " .
2418                                 $cgi->a({-href => href(action=>"blob",
2419                                                        hash_base=>"HEAD", file_name=>$file_name)},
2420                                         "head");
2421                 } else {
2422                         $formats_nav .=
2423                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2424                 }
2425                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2426                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2427         } else {
2428                 print "<div class=\"page_nav\">\n" .
2429                       "<br/><br/></div>\n" .
2430                       "<div class=\"title\">$hash</div>\n";
2431         }
2432         git_print_page_path($file_name, "blob", $hash_base);
2433         print "<div class=\"page_body\">\n";
2434         my $nr;
2435         while (my $line = <$fd>) {
2436                 chomp $line;
2437                 $nr++;
2438                 $line = untabify($line);
2439                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2440                        $nr, $nr, $nr, esc_html($line);
2441         }
2442         close $fd
2443                 or print "Reading blob failed.\n";
2444         print "</div>";
2445         git_footer_html();
2446 }
2447
2448 sub git_tree {
2449         if (!defined $hash) {
2450                 $hash = git_get_head_hash($project);
2451                 if (defined $file_name) {
2452                         my $base = $hash_base || $hash;
2453                         $hash = git_get_hash_by_path($base, $file_name, "tree");
2454                 }
2455                 if (!defined $hash_base) {
2456                         $hash_base = $hash;
2457                 }
2458         }
2459         $/ = "\0";
2460         open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
2461                 or die_error(undef, "Open git-ls-tree failed");
2462         my @entries = map { chomp; $_ } <$fd>;
2463         close $fd or die_error(undef, "Reading tree failed");
2464         $/ = "\n";
2465
2466         my $refs = git_get_references();
2467         my $ref = format_ref_marker($refs, $hash_base);
2468         git_header_html();
2469         my %base_key = ();
2470         my $base = "";
2471         my $have_blame = gitweb_check_feature('blame');
2472         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2473                 $base_key{hash_base} = $hash_base;
2474                 git_print_page_nav('tree','', $hash_base);
2475                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2476         } else {
2477                 print "<div class=\"page_nav\">\n";
2478                 print "<br/><br/></div>\n";
2479                 print "<div class=\"title\">$hash</div>\n";
2480         }
2481         if (defined $file_name) {
2482                 $base = esc_html("$file_name/");
2483         }
2484         git_print_page_path($file_name, 'tree', $hash_base);
2485         print "<div class=\"page_body\">\n";
2486         print "<table cellspacing=\"0\">\n";
2487         my $alternate = 0;
2488         foreach my $line (@entries) {
2489                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
2490                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
2491                 my $t_mode = $1;
2492                 my $t_type = $2;
2493                 my $t_hash = $3;
2494                 my $t_name = validate_input($4);
2495                 if ($alternate) {
2496                         print "<tr class=\"dark\">\n";
2497                 } else {
2498                         print "<tr class=\"light\">\n";
2499                 }
2500                 $alternate ^= 1;
2501                 print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
2502                 if ($t_type eq "blob") {
2503                         print "<td class=\"list\">" .
2504                               $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key),
2505                                       -class => "list"}, esc_html($t_name)) .
2506                               "</td>\n" .
2507                               "<td class=\"link\">" .
2508                               $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
2509                                       "blob");
2510                         if ($have_blame) {
2511                                 print " | " .
2512                                         $cgi->a({-href => href(action=>"blame", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
2513                                                 "blame");
2514                         }
2515                         print " | " .
2516                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2517                                                      hash=>$t_hash, file_name=>"$base$t_name")},
2518                                       "history") .
2519                               " | " .
2520                               $cgi->a({-href => href(action=>"blob_plain",
2521                                                      hash=>$t_hash, file_name=>"$base$t_name")},
2522                                       "raw") .
2523                               "</td>\n";
2524                 } elsif ($t_type eq "tree") {
2525                         print "<td class=\"list\">" .
2526                               $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
2527                                       esc_html($t_name)) .
2528                               "</td>\n" .
2529                               "<td class=\"link\">" .
2530                               $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)},
2531                                       "tree") .
2532                               " | " .
2533                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base, file_name=>"$base$t_name")},
2534                                       "history") .
2535                               "</td>\n";
2536                 }
2537                 print "</tr>\n";
2538         }
2539         print "</table>\n" .
2540               "</div>";
2541         git_footer_html();
2542 }
2543
2544 sub git_snapshot {
2545
2546         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2547         my $have_snapshot = (defined $ctype && defined $suffix);
2548         if (!$have_snapshot) {
2549                 die_error('403 Permission denied', "Permission denied");
2550         }
2551
2552         if (!defined $hash) {
2553                 $hash = git_get_head_hash($project);
2554         }
2555
2556         my $filename = basename($project) . "-$hash.tar.$suffix";
2557
2558         print $cgi->header(-type => 'application/x-tar',
2559                            -content_encoding => $ctype,
2560                            -content_disposition => "inline; filename=\"$filename\"",
2561                            -status => '200 OK');
2562
2563         open my $fd, "-|", "$GIT tar-tree $hash \'$project\' | $command" or
2564                 die_error(undef, "Execute git-tar-tree failed.");
2565         binmode STDOUT, ':raw';
2566         print <$fd>;
2567         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2568         close $fd;
2569
2570 }
2571
2572 sub git_log {
2573         my $head = git_get_head_hash($project);
2574         if (!defined $hash) {
2575                 $hash = $head;
2576         }
2577         if (!defined $page) {
2578                 $page = 0;
2579         }
2580         my $refs = git_get_references();
2581
2582         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2583         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2584                 or die_error(undef, "Open git-rev-list failed");
2585         my @revlist = map { chomp; $_ } <$fd>;
2586         close $fd;
2587
2588         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2589
2590         git_header_html();
2591         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2592
2593         if (!@revlist) {
2594                 my %co = parse_commit($hash);
2595
2596                 git_print_header_div('summary', $project);
2597                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2598         }
2599         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2600                 my $commit = $revlist[$i];
2601                 my $ref = format_ref_marker($refs, $commit);
2602                 my %co = parse_commit($commit);
2603                 next if !%co;
2604                 my %ad = parse_date($co{'author_epoch'});
2605                 git_print_header_div('commit',
2606                                "<span class=\"age\">$co{'age_string'}</span>" .
2607                                esc_html($co{'title'}) . $ref,
2608                                $commit);
2609                 print "<div class=\"title_text\">\n" .
2610                       "<div class=\"log_link\">\n" .
2611                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2612                       " | " .
2613                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2614                       "<br/>\n" .
2615                       "</div>\n" .
2616                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2617                       "</div>\n";
2618
2619                 print "<div class=\"log_body\">\n";
2620                 git_print_simplified_log($co{'comment'});
2621                 print "</div>\n";
2622         }
2623         git_footer_html();
2624 }
2625
2626 sub git_commit {
2627         my %co = parse_commit($hash);
2628         if (!%co) {
2629                 die_error(undef, "Unknown commit object");
2630         }
2631         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2632         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2633
2634         my $parent = $co{'parent'};
2635         if (!defined $parent) {
2636                 $parent = "--root";
2637         }
2638         open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
2639                 or die_error(undef, "Open git-diff-tree failed");
2640         my @difftree = map { chomp; $_ } <$fd>;
2641         close $fd or die_error(undef, "Reading git-diff-tree failed");
2642
2643         # non-textual hash id's can be cached
2644         my $expires;
2645         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2646                 $expires = "+1d";
2647         }
2648         my $refs = git_get_references();
2649         my $ref = format_ref_marker($refs, $co{'id'});
2650
2651         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2652         my $have_snapshot = (defined $ctype && defined $suffix);
2653
2654         my $formats_nav = '';
2655         if (defined $file_name && defined $co{'parent'}) {
2656                 my $parent = $co{'parent'};
2657                 $formats_nav .=
2658                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2659                                 "blame");
2660         }
2661         git_header_html(undef, $expires);
2662         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2663                            $hash, $co{'tree'}, $hash,
2664                            $formats_nav);
2665
2666         if (defined $co{'parent'}) {
2667                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2668         } else {
2669                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2670         }
2671         print "<div class=\"title_text\">\n" .
2672               "<table cellspacing=\"0\">\n";
2673         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2674               "<tr>" .
2675               "<td></td><td> $ad{'rfc2822'}";
2676         if ($ad{'hour_local'} < 6) {
2677                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2678                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2679         } else {
2680                 printf(" (%02d:%02d %s)",
2681                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2682         }
2683         print "</td>" .
2684               "</tr>\n";
2685         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2686         print "<tr><td></td><td> $cd{'rfc2822'}" .
2687               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2688               "</td></tr>\n";
2689         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2690         print "<tr>" .
2691               "<td>tree</td>" .
2692               "<td class=\"sha1\">" .
2693               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2694                        class => "list"}, $co{'tree'}) .
2695               "</td>" .
2696               "<td class=\"link\">" .
2697               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2698                       "tree");
2699         if ($have_snapshot) {
2700                 print " | " .
2701                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2702         }
2703         print "</td>" .
2704               "</tr>\n";
2705         my $parents = $co{'parents'};
2706         foreach my $par (@$parents) {
2707                 print "<tr>" .
2708                       "<td>parent</td>" .
2709                       "<td class=\"sha1\">" .
2710                       $cgi->a({-href => href(action=>"commit", hash=>$par),
2711                                class => "list"}, $par) .
2712                       "</td>" .
2713                       "<td class=\"link\">" .
2714                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2715                       " | " .
2716                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .
2717                       "</td>" .
2718                       "</tr>\n";
2719         }
2720         print "</table>".
2721               "</div>\n";
2722
2723         print "<div class=\"page_body\">\n";
2724         git_print_log($co{'comment'});
2725         print "</div>\n";
2726
2727         git_difftree_body(\@difftree, $hash, $parent);
2728
2729         git_footer_html();
2730 }
2731
2732 sub git_blobdiff {
2733         mkdir($git_temp, 0700);
2734         git_header_html();
2735         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2736                 my $formats_nav =
2737                         $cgi->a({-href => href(action=>"blobdiff_plain",
2738                                                hash=>$hash, hash_parent=>$hash_parent)},
2739                                 "plain");
2740                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2741                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2742         } else {
2743                 print <<HTML;
2744 <div class="page_nav"><br/><br/></div>
2745 <div class="title">$hash vs $hash_parent</div>
2746 HTML
2747         }
2748         git_print_page_path($file_name, "blob", $hash_base);
2749         print "<div class=\"page_body\">\n" .
2750               "<div class=\"diff_info\">blob:" .
2751               $cgi->a({-href => href(action=>"blob", hash=>$hash_parent,
2752                                      hash_base=>$hash_base, file_name=>($file_parent || $file_name))},
2753                       $hash_parent) .
2754               " -> blob:" .
2755               $cgi->a({-href => href(action=>"blob", hash=>$hash,
2756                                      hash_base=>$hash_base, file_name=>$file_name)},
2757                       $hash) .
2758               "</div>\n";
2759         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2760         print "</div>"; # page_body
2761         git_footer_html();
2762 }
2763
2764 sub git_blobdiff_plain {
2765         mkdir($git_temp, 0700);
2766         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2767         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2768 }
2769
2770 sub git_commitdiff {
2771         my $format = shift || 'html';
2772         my %co = parse_commit($hash);
2773         if (!%co) {
2774                 die_error(undef, "Unknown commit object");
2775         }
2776         if (!defined $hash_parent) {
2777                 $hash_parent = $co{'parent'} || '--root';
2778         }
2779
2780         # read commitdiff
2781         my $fd;
2782         my @difftree;
2783         if ($format eq 'html') {
2784                 open $fd, "-|", $GIT, "diff-tree", '-r', '-M', '-C',
2785                         "--patch-with-raw", "--full-index", $hash_parent, $hash
2786                         or die_error(undef, "Open git-diff-tree failed");
2787
2788                 while (chomp(my $line = <$fd>)) {
2789                         # empty line ends raw part of diff-tree output
2790                         last unless $line;
2791                         push @difftree, $line;
2792                 }
2793
2794         } elsif ($format eq 'plain') {
2795                 open $fd, "-|", $GIT, "diff-tree", '-r', '-p', '-B', $hash_parent, $hash
2796                         or die_error(undef, "Open git-diff-tree failed");
2797
2798         } else {
2799                 die_error(undef, "Unknown commitdiff format");
2800         }
2801
2802         # non-textual hash id's can be cached
2803         my $expires;
2804         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2805                 $expires = "+1d";
2806         }
2807
2808         # write commit message
2809         if ($format eq 'html') {
2810                 my $refs = git_get_references();
2811                 my $ref = format_ref_marker($refs, $co{'id'});
2812                 my $formats_nav =
2813                         $cgi->a({-href => href(action=>"commitdiff_plain",
2814                                                hash=>$hash, hash_parent=>$hash_parent)},
2815                                 "plain");
2816
2817                 git_header_html(undef, $expires);
2818                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
2819                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
2820                 print "<div class=\"page_body\">\n";
2821                 print "<div class=\"log\">\n";
2822                 git_print_simplified_log($co{'comment'}, 1); # skip title
2823                 print "</div>\n"; # class="log"
2824
2825         } elsif ($format eq 'plain') {
2826                 my $refs = git_get_references("tags");
2827                 my @tagnames;
2828                 if (exists $refs->{$hash}) {
2829                         @tagnames = map { s|^tags/|| } $refs->{$hash};
2830                 }
2831                 my $filename = basename($project) . "-$hash.patch";
2832
2833                 print $cgi->header(
2834                         -type => 'text/plain',
2835                         -charset => 'utf-8',
2836                         -expires => $expires,
2837                         -content_disposition => qq(inline; filename="$filename"));
2838                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2839                 print <<TEXT;
2840 From: $co{'author'}
2841 Date: $ad{'rfc2822'} ($ad{'tz_local'})
2842 Subject: $co{'title'}
2843 TEXT
2844                 foreach my $tag (@tagnames) {
2845                         print "X-Git-Tag: $tag\n";
2846                 }
2847                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
2848                 foreach my $line (@{$co{'comment'}}) {
2849                         print "$line\n";
2850                 }
2851                 print "---\n\n";
2852         }
2853
2854         # write patch
2855         if ($format eq 'html') {
2856                 #git_difftree_body(\@difftree, $hash, $hash_parent);
2857                 #print "<br/>\n";
2858
2859                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
2860                 close $fd;
2861                 print "</div>\n"; # class="page_body"
2862                 git_footer_html();
2863
2864         } elsif ($format eq 'plain') {
2865                 local $/ = undef;
2866                 print <$fd>;
2867                 close $fd
2868                         or print "Reading git-diff-tree failed\n";
2869         }
2870 }
2871
2872 sub git_commitdiff_plain {
2873         git_commitdiff('plain');
2874 }
2875
2876 sub git_history {
2877         if (!defined $hash_base) {
2878                 $hash_base = git_get_head_hash($project);
2879         }
2880         my $ftype;
2881         my %co = parse_commit($hash_base);
2882         if (!%co) {
2883                 die_error(undef, "Unknown commit object");
2884         }
2885         my $refs = git_get_references();
2886         git_header_html();
2887         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base);
2888         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2889         if (!defined $hash && defined $file_name) {
2890                 $hash = git_get_hash_by_path($hash_base, $file_name);
2891         }
2892         if (defined $hash) {
2893                 $ftype = git_get_type($hash);
2894         }
2895         git_print_page_path($file_name, $ftype, $hash_base);
2896
2897         open my $fd, "-|",
2898                 $GIT, "rev-list", "--full-history", $hash_base, "--", $file_name;
2899         git_history_body($fd, $refs, $hash_base, $ftype);
2900
2901         close $fd;
2902         git_footer_html();
2903 }
2904
2905 sub git_search {
2906         if (!defined $searchtext) {
2907                 die_error(undef, "Text field empty");
2908         }
2909         if (!defined $hash) {
2910                 $hash = git_get_head_hash($project);
2911         }
2912         my %co = parse_commit($hash);
2913         if (!%co) {
2914                 die_error(undef, "Unknown commit object");
2915         }
2916         # pickaxe may take all resources of your box and run for several minutes
2917         # with every query - so decide by yourself how public you make this feature :)
2918         my $commit_search = 1;
2919         my $author_search = 0;
2920         my $committer_search = 0;
2921         my $pickaxe_search = 0;
2922         if ($searchtext =~ s/^author\\://i) {
2923                 $author_search = 1;
2924         } elsif ($searchtext =~ s/^committer\\://i) {
2925                 $committer_search = 1;
2926         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2927                 $commit_search = 0;
2928                 $pickaxe_search = 1;
2929         }
2930         git_header_html();
2931         git_print_page_nav('','', $hash,$co{'tree'},$hash);
2932         git_print_header_div('commit', esc_html($co{'title'}), $hash);
2933
2934         print "<table cellspacing=\"0\">\n";
2935         my $alternate = 0;
2936         if ($commit_search) {
2937                 $/ = "\0";
2938                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
2939                 while (my $commit_text = <$fd>) {
2940                         if (!grep m/$searchtext/i, $commit_text) {
2941                                 next;
2942                         }
2943                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2944                                 next;
2945                         }
2946                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2947                                 next;
2948                         }
2949                         my @commit_lines = split "\n", $commit_text;
2950                         my %co = parse_commit(undef, \@commit_lines);
2951                         if (!%co) {
2952                                 next;
2953                         }
2954                         if ($alternate) {
2955                                 print "<tr class=\"dark\">\n";
2956                         } else {
2957                                 print "<tr class=\"light\">\n";
2958                         }
2959                         $alternate ^= 1;
2960                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2961                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2962                               "<td>" .
2963                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
2964                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
2965                         my $comment = $co{'comment'};
2966                         foreach my $line (@$comment) {
2967                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2968                                         my $lead = esc_html($1) || "";
2969                                         $lead = chop_str($lead, 30, 10);
2970                                         my $match = esc_html($2) || "";
2971                                         my $trail = esc_html($3) || "";
2972                                         $trail = chop_str($trail, 30, 10);
2973                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
2974                                         print chop_str($text, 80, 5) . "<br/>\n";
2975                                 }
2976                         }
2977                         print "</td>\n" .
2978                               "<td class=\"link\">" .
2979                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2980                               " | " .
2981                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2982                         print "</td>\n" .
2983                               "</tr>\n";
2984                 }
2985                 close $fd;
2986         }
2987
2988         if ($pickaxe_search) {
2989                 $/ = "\n";
2990                 open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
2991                 undef %co;
2992                 my @files;
2993                 while (my $line = <$fd>) {
2994                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2995                                 my %set;
2996                                 $set{'file'} = $6;
2997                                 $set{'from_id'} = $3;
2998                                 $set{'to_id'} = $4;
2999                                 $set{'id'} = $set{'to_id'};
3000                                 if ($set{'id'} =~ m/0{40}/) {
3001                                         $set{'id'} = $set{'from_id'};
3002                                 }
3003                                 if ($set{'id'} =~ m/0{40}/) {
3004                                         next;
3005                                 }
3006                                 push @files, \%set;
3007                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3008                                 if (%co) {
3009                                         if ($alternate) {
3010                                                 print "<tr class=\"dark\">\n";
3011                                         } else {
3012                                                 print "<tr class=\"light\">\n";
3013                                         }
3014                                         $alternate ^= 1;
3015                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3016                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3017                                               "<td>" .
3018                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3019                                                       -class => "list subject"},
3020                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3021                                         while (my $setref = shift @files) {
3022                                                 my %set = %$setref;
3023                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3024                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3025                                                               -class => "list"},
3026                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3027                                                       "<br/>\n";
3028                                         }
3029                                         print "</td>\n" .
3030                                               "<td class=\"link\">" .
3031                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3032                                               " | " .
3033                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3034                                         print "</td>\n" .
3035                                               "</tr>\n";
3036                                 }
3037                                 %co = parse_commit($1);
3038                         }
3039                 }
3040                 close $fd;
3041         }
3042         print "</table>\n";
3043         git_footer_html();
3044 }
3045
3046 sub git_shortlog {
3047         my $head = git_get_head_hash($project);
3048         if (!defined $hash) {
3049                 $hash = $head;
3050         }
3051         if (!defined $page) {
3052                 $page = 0;
3053         }
3054         my $refs = git_get_references();
3055
3056         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3057         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
3058                 or die_error(undef, "Open git-rev-list failed");
3059         my @revlist = map { chomp; $_ } <$fd>;
3060         close $fd;
3061
3062         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3063         my $next_link = '';
3064         if ($#revlist >= (100 * ($page+1)-1)) {
3065                 $next_link =
3066                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3067                                  -title => "Alt-n"}, "next");
3068         }
3069
3070
3071         git_header_html();
3072         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3073         git_print_header_div('summary', $project);
3074
3075         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3076
3077         git_footer_html();
3078 }
3079
3080 ## ......................................................................
3081 ## feeds (RSS, OPML)
3082
3083 sub git_rss {
3084         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3085         open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_get_head_hash($project)
3086                 or die_error(undef, "Open git-rev-list failed");
3087         my @revlist = map { chomp; $_ } <$fd>;
3088         close $fd or die_error(undef, "Reading git-rev-list failed");
3089         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3090         print <<XML;
3091 <?xml version="1.0" encoding="utf-8"?>
3092 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3093 <channel>
3094 <title>$project $my_uri $my_url</title>
3095 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3096 <description>$project log</description>
3097 <language>en</language>
3098 XML
3099
3100         for (my $i = 0; $i <= $#revlist; $i++) {
3101                 my $commit = $revlist[$i];
3102                 my %co = parse_commit($commit);
3103                 # we read 150, we always show 30 and the ones more recent than 48 hours
3104                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3105                         last;
3106                 }
3107                 my %cd = parse_date($co{'committer_epoch'});
3108                 open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
3109                 my @difftree = map { chomp; $_ } <$fd>;
3110                 close $fd or next;
3111                 print "<item>\n" .
3112                       "<title>" .
3113                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3114                       "</title>\n" .
3115                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3116                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3117                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3118                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3119                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3120                       "<content:encoded>" .
3121                       "<![CDATA[\n";
3122                 my $comment = $co{'comment'};
3123                 foreach my $line (@$comment) {
3124                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
3125                         print "$line<br/>\n";
3126                 }
3127                 print "<br/>\n";
3128                 foreach my $line (@difftree) {
3129                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3130                                 next;
3131                         }
3132                         my $file = validate_input(unquote($7));
3133                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
3134                         print "$file<br/>\n";
3135                 }
3136                 print "]]>\n" .
3137                       "</content:encoded>\n" .
3138                       "</item>\n";
3139         }
3140         print "</channel></rss>";
3141 }
3142
3143 sub git_opml {
3144         my @list = git_get_projects_list();
3145
3146         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3147         print <<XML;
3148 <?xml version="1.0" encoding="utf-8"?>
3149 <opml version="1.0">
3150 <head>
3151   <title>$site_name Git OPML Export</title>
3152 </head>
3153 <body>
3154 <outline text="git RSS feeds">
3155 XML
3156
3157         foreach my $pr (@list) {
3158                 my %proj = %$pr;
3159                 my $head = git_get_head_hash($proj{'path'});
3160                 if (!defined $head) {
3161                         next;
3162                 }
3163                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
3164                 my %co = parse_commit($head);
3165                 if (!%co) {
3166                         next;
3167                 }
3168
3169                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3170                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3171                 my $html = "$my_url?p=$proj{'path'};a=summary";
3172                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3173         }
3174         print <<XML;
3175 </outline>
3176 </body>
3177 </opml>
3178 XML
3179 }