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

   1 #!/usr/bin/perl
   2
   3 # gitweb.pl - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke <ch@gierke.de>
   7 #
   8 # This file is licensed under the GPL v2, or a later version
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML);
  13 use CGI::Carp qw(fatalsToBrowser);
  14
  15 my $cgi = new CGI;
  16
  17 my $version =           "055";
  18 my $projectroot =       "/home/kay/public_html/pub/scm";
  19 my $defaultprojects =   "linux/kernel/git";
  20 my $gitbin =            "/home/kay/bin/git";
  21 my $gittmp =            "/tmp";
  22 my $my_url =            $cgi->url();
  23 my $my_uri =            $cgi->url(-absolute => 1);
  24
  25 my $project = $cgi->param('p');
  26 my $action = $cgi->param('a');
  27 my $hash = $cgi->param('h');
  28 my $hash_parent = $cgi->param('hp');
  29 my $time_back = $cgi->param('t');
  30 $ENV{'SHA1_FILE_DIRECTORY'} = "$projectroot/$project/objects";
  31
  32 # validate input
  33 if (defined($project) && $project =~ /(^|\/)(|\.|\.\.)($|\/)/) {
  34         error_page("403 Permission denied", "Invalid project parameter.");
  35 }
  36 if (defined($action) && !$action =~ m/^[0-9a-zA-Z\.\-]+$/) {
  37         error_page("403 Permission denied", "Invalid action parameter.");
  38 }
  39 if (defined($hash) && !($hash =~ m/^[0-9a-fA-F]{40}$/)) {
  40         error_page("403 Permission denied", "Invalid hash parameter.");
  41 }
  42 if (defined($hash_parent) && !($hash_parent =~ m/^[0-9a-fA-F]{40}$/)) {
  43         error_page("403 Permission denied", "Invalid parent hash parameter.");
  44 }
  45 if (defined($time_back) && !($time_back =~ m/^[0-9]+$/)) {
  46         error_page("403 Permission denied", "Invalid time parameter.");
  47 } else {
  48         $time_back = 1;
  49 }
  50
  51 sub git_header_html {
  52         my $status = shift || "200 OK";
  53
  54         print $cgi->header(-type=>'text/html',  -charset => 'utf-8', -status=> $status);
  55         print <<EOF;
  56 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
  57 <html>
  58 <head>
  59         <title>git - $project $action</title>
  60         <link rel="alternate" title="$project log" href="$my_uri?p=$project;a=rss" type="application/rss+xml"/>
  61         <style type="text/css">
  62         body { font-family: sans-serif; font-size: 12px; margin:0px; }
  63         a { color:#0000cc; }
  64         a:hover { color:#880000; }
  65         a:visited { color:#880000; }
  66         a:active { color:#880000; }
  67         div.page_header {
  68                 margin:15px 25px 0px; height:25px; padding:8px;
  69                 font-size:18px; clear:both; font-weight:bold; background-color: #d9d8d1;
  70         }
  71         div.page_header a:visited { color:#0000cc; }
  72         div.page_nav { margin:0px 25px; padding:8px; clear:both; border:solid #d9d8d1; border-width:0px 1px; }
  73         div.page_nav a:visited { color:#0000cc; }
  74         div.page_footer {
  75                 margin:0px 25px 15px; height:17px; padding:4px; padding-left:8px;
  76                 clear:both; background-color: #d9d8d1;
  77         }
  78         div.page_footer_text { float:left; color:#888888; font-size:10px;}
  79         div.page_body { margin:0px 25px; padding:8px; clear:both; border: solid #d9d8d1; border-width:0px 1px; }
  80         a.log_title {
  81                 display:block; margin:0px 25px; padding:8px; clear:both;
  82                 font-weight:bold; background-color: #d9d8d1; text-decoration:none; color:#000000;
  83         }
  84         a.log_title:hover { background-color: #c9c8c1; }
  85         a.xml_logo { float:right; border:1px solid;
  86                 line-height:15px;
  87                 border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e; width:35px;
  88                 color:#ffffff; background-color:#ff6600;
  89                 font-weight:bold; font-family:sans-serif; text-align:center;
  90                 font-size:11px; display:block; text-decoration:none;
  91         }
  92         a.xml_logo:hover { background-color:#ee5500; }
  93         div.log_head {
  94                 margin:0px 25px; min-height: 30px; padding:8px; clear:both;
  95                 border: solid #d9d8d1; border-width:0px 1px; font-family:monospace;
  96                 background-color: #edece6;
  97         }
  98         div.log_body {
  99                 margin:0px 25px; padding:8px; padding-left:150px; clear:both;
 100                 border:solid #d9d8d1; border-width:0px 1px;
 101         }
 102         span.log_age { position:relative; float:left; width:142px; }
 103         div.log_functions { font-size:10px; font-family:sans-serif; position:relative; float:left; width:142px; }
 104         div.signed_off { color: #a9a8a1; }
 105         </style>
 106 </head>
 107 <body>
 108 EOF
 109         print "<div class=\"page_header\">\n" .
 110               "<a href=\"http://kernel.org/pub/software/scm/git/\">" .
 111               "<img src=\"$my_uri?a=git-logo.png\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/></a>";
 112         if ($defaultprojects ne "") {
 113                 print $cgi->a({-href => "$my_uri"}, "projects") . " / ";
 114         }
 115         if ($project ne "") {
 116                 print $cgi->a({-href => "$my_uri?p=$project;a=log"}, $project);
 117         }
 118         if ($action ne "") {
 119                 print " / $action";
 120         }
 121         print "</div>\n";
 122 }
 123
 124 sub git_footer_html {
 125         print "<div class=\"page_footer\">";
 126         print "<div class=\"page_footer_text\">version $version</div>";
 127         if ($project ne '') {
 128                 print $cgi->a({-href => "$my_uri?p=$project;a=rss", -class => "xml_logo"}, "XML") . "\n";
 129         }
 130         print "</div>";
 131         print "</body>\n</html>";
 132 }
 133
 134 sub error_page {
 135         my $status = shift || "403 Permission denied";
 136         my $error = shift || "Malformed query, file missing or permission denied";
 137         git_header_html($status);
 138         print "<div class=\"page_body\">\n" .
 139               "<br/><br/>\n";
 140         print "$error\n";
 141         print "<br/></div>\n";
 142         git_footer_html();
 143         exit 0;
 144 }
 145
 146 sub git_head {
 147         my $path = shift;
 148         open my $fd, "$projectroot/$path/HEAD";
 149         my $head = <$fd>;
 150         close $fd;
 151         chomp $head;
 152         return $head;
 153 }
 154
 155 sub git_commit {
 156         my $commit = shift;
 157         my %co;
 158         my @parents;
 159
 160         open my $fd, "-|", "$gitbin/cat-file commit $commit";
 161         while (my $line = <$fd>) {
 162                 chomp($line);
 163                 last if $line eq "";
 164                 if ($line =~ m/^tree (.*)$/) {
 165                         $co{'tree'} = $1;
 166                 } elsif ($line =~ m/^parent (.*)$/) {
 167                         push @parents, $1;
 168                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 169                         $co{'author'} = $1;
 170                         $co{'author_epoch'} = $2;
 171                         $co{'author_tz'} = $3;
 172                         $co{'author_name'} = $co{'author'};
 173                         $co{'author_name'} =~ s/ <.*//;
 174                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 175                         $co{'committer'} = $1;
 176                         $co{'committer_epoch'} = $2;
 177                         $co{'committer_tz'} = $3;
 178                         $co{'committer_name'} = $co{'committer'};
 179                         $co{'committer_name'} =~ s/ <.*//;
 180                 }
 181         }
 182         $co{'parents'} = \@parents;
 183         $co{'parent'} = $parents[0];
 184         my (@comment) = map { chomp; $_ } <$fd>;
 185         $co{'comment'} = \@comment;
 186         $co{'title'} = $comment[0];
 187         close $fd;
 188         return %co;
 189 }
 190
 191 sub git_diff_html {
 192         my $from_name = shift || "/dev/null";
 193         my $to_name = shift || "/dev/null";
 194         my $from = shift;
 195         my $to = shift;
 196
 197         my $from_tmp = "/dev/null";
 198         my $to_tmp = "/dev/null";
 199         my $from_label = "/dev/null";
 200         my $to_label = "/dev/null";
 201         my $pid = $$;
 202
 203         # create tmp from-file
 204         if ($from ne "") {
 205                 $from_tmp = "$gittmp/gitweb_" . $$ . "_from";
 206                 open my $fd2, "> $from_tmp";
 207                 open my $fd, "-|", "$gitbin/cat-file blob $from";
 208                 my @file = <$fd>;
 209                 print $fd2 @file;
 210                 close $fd2;
 211                 close $fd;
 212                 $from_label = "a/$from_name";
 213         }
 214
 215         # create tmp to-file
 216         if ($to ne "") {
 217                 $to_tmp = "$gittmp/gitweb_" . $$ . "_to";
 218                 open my $fd2, "> $to_tmp";
 219                 open my $fd, "-|", "$gitbin/cat-file blob $to";
 220                 my @file = <$fd>;
 221                 print $fd2 @file;
 222                 close $fd2;
 223                 close $fd;
 224                 $to_label = "b/$to_name";
 225         }
 226
 227         open my $fd, "-|", "/usr/bin/diff -u -p -L $from_label -L $to_label $from_tmp $to_tmp";
 228         print "<span style=\"color: #000099;\">===== ";
 229         if ($from ne "") {
 230                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from"}, $from);
 231         } else {
 232                 print $from_name;
 233         }
 234         print " vs ";
 235         if ($to ne "") {
 236                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to"}, $to);
 237         } else {
 238                 print $to_name;
 239         }
 240         print " =====</span>\n";
 241         while (my $line = <$fd>) {
 242                 my $char = substr($line,0,1);
 243                 print '<span style="color: #008800;">' if $char eq '+';
 244                 print '<span style="color: #CC0000;">' if $char eq '-';
 245                 print '<span style="color: #990099;">' if $char eq '@';
 246                 print escapeHTML($line);
 247                 print '</span>' if $char eq '+' or $char eq '-' or $char eq '@';
 248         }
 249         close $fd;
 250
 251         if ($from ne "") {
 252                 unlink("$from_tmp");
 253         }
 254         if ($to ne "") {
 255                 unlink("$to_tmp");
 256         }
 257 }
 258
 259 sub mode_str {
 260         my $perms = oct shift;
 261         my $modestr;
 262         if ($perms & 040000) {
 263                 $modestr .= 'drwxrwxr-x';
 264         } else {
 265                 # git cares only about the executable bit
 266                 if ($perms & 0100) {
 267                         $modestr .= '-rwxrwxr-x';
 268                 } else {
 269                         $modestr .= '-rw-rw-r--';
 270                 };
 271         }
 272         return $modestr;
 273 }
 274
 275 sub date_str {
 276         my $epoch = shift;
 277         my $tz = shift || "-0000";
 278
 279         my %date;
 280         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 281         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 282         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 283         $date{'hour'} = $hour;
 284         $date{'minute'} = $min;
 285         $date{'mday'} = $mday;
 286         $date{'day'} = $days[$wday];
 287         $date{'month'} = $months[$mon];
 288         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 289         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 290
 291         $tz =~ m/((-|\+)[0-9][0-9])([0-9][0-9])/;
 292         my $local = $epoch + (($1 + ($2/60)) * 3600);
 293         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 294         $date{'hour_local'} = $hour;
 295         $date{'minute_local'} = $min;
 296         $date{'tz_local'} = $tz;
 297         return %date;
 298 }
 299
 300 if ($action eq "git-logo.png") {
 301         print $cgi->header(-type => 'image/png', -expires => '+1d');
 302         print   "\211\120\116\107\015\012\032\012\000\000\000\015\111\110\104\122".
 303                 "\000\000\000\110\000\000\000\033\004\003\000\000\000\055\331\324".
 304                 "\055\000\000\000\030\120\114\124\105\377\377\377\140\140\135\260".
 305                 "\257\252\000\200\000\316\315\307\300\000\000\350\350\346\367\367".
 306                 "\366\225\014\247\107\000\000\000\163\111\104\101\124\050\317\143".
 307                 "\110\147\040\004\112\134\030\012\010\052\142\123\141\040\002\010".
 308                 "\015\151\105\254\241\241\001\060\014\223\140\066\046\122\221\261".
 309                 "\001\021\326\341\125\144\154\154\314\154\154\014\242\014\160\052".
 310                 "\142\006\052\301\142\035\263\001\002\123\244\010\350\000\003\030".
 311                 "\046\126\021\324\341\040\227\033\340\264\016\065\044\161\051\202".
 312                 "\231\060\270\223\012\021\271\105\210\301\215\240\242\104\041\006".
 313                 "\047\101\202\100\205\301\105\211\040\160\001\000\244\075\041\305".
 314                 "\022\034\232\376\000\000\000\000\111\105\116\104\256\102\140\202";
 315         exit;
 316 }
 317
 318 # show list of default projects
 319 if ($project eq "") {
 320         opendir(my $fd, "$projectroot/$defaultprojects");
 321         my (@users) = sort grep(!/^\./, readdir($fd));
 322         closedir($fd);
 323         git_header_html();
 324         print "<div class=\"page_body\">\n";
 325         print "<br/><br/>\n";
 326         foreach my $user (@users) {
 327                 opendir($fd, "$projectroot/$defaultprojects/$user");
 328                 my (@repos) = sort grep(/\.git$/, readdir($fd));
 329                 closedir($fd);
 330                 foreach my $repo (@repos) {
 331                         if (-e "$projectroot/$defaultprojects/$user/$repo/HEAD") {
 332                                 print $cgi->a({-href => "$my_uri?p=$defaultprojects/$user/$repo;a=log"}, "$defaultprojects/$user/$repo") . "<br/>\n";
 333                         }
 334                 }
 335         }
 336         print "<br/></div>";
 337         git_footer_html();
 338         exit;
 339 }
 340
 341 if ($action eq "") {
 342         $action = "log";
 343 }
 344
 345 if ($action eq "blob") {
 346         git_header_html();
 347         print "<div class=\"page_body\"><pre><br/><br/>\n";
 348         open my $fd, "-|", "$gitbin/cat-file blob $hash";
 349         my $nr;
 350         while (my $line = <$fd>) {
 351                 $nr++;
 352                 printf "<span style =\"color: #999999;\">%4i\t</span>%s", $nr, escapeHTML($line);;
 353         }
 354         close $fd;
 355         print "<br/><br/></pre>\n";
 356         print "</div>";
 357         git_footer_html();
 358 } elsif ($action eq "tree") {
 359         if ($hash eq "") {
 360                 $hash = git_head($project);
 361         }
 362         open my $fd, "-|", "$gitbin/ls-tree $hash";
 363         my (@entries) = map { chomp; $_ } <$fd>;
 364         close $fd;
 365         git_header_html();
 366         print "<div class=\"page_body\">\n";
 367         print "<br/><pre>\n";
 368         foreach my $line (@entries) {
 369                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
 370                 $line =~ m/^([0-9]+)\t(.*)\t(.*)\t(.*)$/;
 371                 my $t_mode = $1;
 372                 my $t_type = $2;
 373                 my $t_hash = $3;
 374                 my $t_name = $4;
 375                 if ($t_type eq "blob") {
 376                         print mode_str($t_mode). " " . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$t_hash"}, $t_name) . "\n";
 377                 } elsif ($t_type eq "tree") {
 378                         print mode_str($t_mode). " " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$t_hash"}, $t_name) . "\n";
 379                 }
 380         }
 381         print "</pre>\n";
 382         print "<br/></div>";
 383         git_footer_html();
 384 } elsif ($action eq "log" || $action eq "rss") {
 385         open my $fd, "-|", "$gitbin/rev-list " . git_head($project);
 386         my (@revtree) = map { chomp; $_ } <$fd>;
 387         close $fd;
 388
 389         if ($action eq "log") {
 390                 git_header_html();
 391                 print "<div class=\"page_nav\">\n";
 392                 print "view  ";
 393                 print $cgi->a({-href => "$my_uri?p=$project;a=log"}, "last day") . " | \n" .
 394                       $cgi->a({-href => "$my_uri?p=$project;a=log;t=7"}, "week") . " | \n" .
 395                       $cgi->a({-href => "$my_uri?p=$project;a=log;t=31"}, "month") . " | \n" .
 396                       $cgi->a({-href => "$my_uri?p=$project;a=log;t=365"}, "year") . " | \n" .
 397                       $cgi->a({-href => "$my_uri?p=$project;a=log;t=0"}, "all") . "<br/>\n";
 398                 print "<br/><br/>\n" .
 399                       "</div>\n";
 400         } elsif ($action eq "rss") {
 401                 print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
 402                 print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
 403                       "<rss version=\"0.91\">\n";
 404                 print "<channel>\n";
 405                 print "<title>$project</title>\n".
 406                       "<link> " . $my_url . "/$project/log</link>\n".
 407                       "<description>$project log</description>\n".
 408                       "<language>en</language>\n";
 409         }
 410
 411         for (my $i = 0; $i <= $#revtree; $i++) {
 412                 my $commit = $revtree[$i];
 413                 my %co = git_commit($commit);
 414                 my %ad = date_str($co{'author_epoch'});
 415                 my $age = time - $co{'committer_epoch'};
 416                 my $age_string;
 417                 if ($age > 60*60*24*365*2) {
 418                         $age_string = int $age/60/60/24/365;
 419                         $age_string .= " years ago";
 420                 } elsif ($age > 60*60*24*365/12*2) {
 421                         $age_string = int $age/60/60/24/365/12;
 422                         $age_string .= " months ago";
 423                 } elsif ($age > 60*60*24*7*2) {
 424                         $age_string = int $age/60/60/24/7;
 425                         $age_string .= " weeks ago";
 426                 } elsif ($age > 60*60*24*2) {
 427                         $age_string = int $age/60/60/24;
 428                         $age_string .= " days ago";
 429                 } elsif ($age > 60*60*2) {
 430                         $age_string = int $age/60/60;
 431                         $age_string .= " hours ago";
 432                 } elsif ($age > 60*2) {
 433                         $age_string = int $age/60;
 434                         $age_string .= " minutes ago";
 435                 }
 436                 if ($action eq "log") {
 437                 if ($time_back > 0 && $age > $time_back*60*60*24) {
 438                                 if ($i == 0) {
 439                                         print "<div class=\"page_body\"> Last change $age_string.<br/><br/></div>\n";
 440                                 }
 441                                 last;
 442                         }
 443                         print "<div><a href=\"$my_uri?p=$project;a=commit;h=$commit\" class=\"log_title\">\n" .
 444                               "<span class=\"log_age\">" . $age_string . "</span>\n" . escapeHTML($co{'title'}) . "</a>\n" .
 445                               "</div>\n";
 446                         print "<div class=\"log_head\">\n" .
 447                               "<div class=\"log_functions\">\n" .
 448                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "view commit") . "<br/>\n" .
 449                               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "view diff") . "<br/>\n" .
 450                               "</div>\n" .
 451                               escapeHTML($co{'author_name'}) .  " [" . $ad{'rfc2822'} . "]<br/>\n" .
 452                               "</div>\n" .
 453                               "<div class=\"log_body\">\n";
 454                         my $comment = $co{'comment'};
 455                         foreach my $line (@$comment) {
 456                                 if ($line =~ m/^(signed-off|acked)-by:/i) {
 457                                         print '<div class="signed_off">' . escapeHTML($line) . "<br/></div>\n";
 458                                 } else {
 459                                         print escapeHTML($line) . "<br/>\n";
 460                                 }
 461                         }
 462                         print "<br/><br/>\n" .
 463                               "</div>\n";
 464                 } elsif ($action eq "rss") {
 465                         last if ($i >= 20);
 466                         print "<item>\n" .
 467                               "\t<title>" . sprintf("%d %s %02d:%02d", $ad{'mday'}, $ad{'month'}, $ad{'hour'}, $ad{'min'}) . " - " . escapeHTML($co{'title'}) . "</title>\n" .
 468                               "\t<link> " . $my_url . "?p=$project;a==commit;h=$commit</link>\n" .
 469                               "\t<description>";
 470                         my $comment = $co{'comment'};
 471                         foreach my $line (@$comment) {
 472                                 print escapeHTML($line) . "\n";
 473                         }
 474                         print "\t</description>\n" .
 475                               "</item>\n";
 476                 }
 477         }
 478         if ($action eq "log") {
 479                 git_footer_html();
 480         } elsif ($action eq "rss") {
 481                 print "</channel></rss>";
 482         }
 483 } elsif ($action eq "commit") {
 484         my %co = git_commit($hash);
 485         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
 486         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
 487         open my $fd, "-|", "$gitbin/diff-tree -r " . $co{'parent'} . " $hash";
 488         my (@difftree) = map { chomp; $_ } <$fd>;
 489         close $fd;
 490
 491         git_header_html();
 492         print "<div class=\"page_nav\"> view\n" .
 493               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
 494               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diff") . "\n" .
 495               "<br/><br/></div>\n";
 496         print "<a class=\"log_title\" href=\"$my_uri?p=$project;a=commitdiff;h=$hash\">$co{'title'}</a>\n";
 497         print "<div class=\"log_head\">\n";
 498         print "author &nbsp; &nbsp; &nbsp;" . escapeHTML($co{'author'}) . "<br/>\n";
 499         print "author-time " . $ad{'rfc2822'};
 500         if ($ad{'hour_local'} < 6) { print "<span style=\"color: #cc0000;\">"; }
 501         printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
 502         if ($ad{'hour_local'} < 6 ) { print "</span>"; }
 503         print "<br/>\n";
 504         print "committer &nbsp; " . escapeHTML($co{'committer'}) . "<br/>\n";
 505         print "commit-time " . $ad{'rfc2822'};
 506         printf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'});
 507         print "<br/>\n";
 508         print "commit &nbsp &nbsp; &nbsp;$hash<br/>\n";
 509         print "tree &nbsp; &nbsp; &nbsp; &nbsp" . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'}"}, $co{'tree'}) . "<br/>\n";
 510         my $parents  = $co{'parents'};
 511         foreach my $par (@$parents) {
 512                 print "parent &nbsp; &nbsp &nbsp" . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$par"}, $par) . "<br/>\n";
 513         }
 514         print "</div>\n";
 515         print "<div class=\"page_body\">\n";
 516         my $comment = $co{'comment'};
 517         foreach my $line (@$comment) {
 518                 if ($line =~ m/(signed-off|acked)-by:/i) {
 519                         print '<div class="signed_off">' . escapeHTML($line) . "<br/></div>\n";
 520                 } else {
 521                         print escapeHTML($line) . "<br/>\n";
 522                 }
 523         }
 524         print "<br/><br/>\n";
 525         print "<pre>\n";
 526         foreach my $line (@difftree) {
 527                 # '*100644->100644      blob    9f91a116d91926df3ba936a80f020a6ab1084d2b->bb90a0c3a91eb52020d0db0e8b4f94d30e02d596      net/ipv4/route.c'
 528                 # '+100644      blob    4a83ab6cd565d21ab0385bac6643826b83c2fcd4        arch/arm/lib/bitops.h'
 529                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 530                 my $op = $1;
 531                 my $mode = $2;
 532                 my $type = $3;
 533                 my $id = $4;
 534                 my $file = $5;
 535                 $mode =~ m/^([0-7]{6})/;
 536                 my $modestr = mode_str($1);
 537                 if ($type eq "blob") {
 538                         if ($op eq "+") {
 539                                 print "$modestr " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$id"}, $file) . " (new)\n";
 540                         } elsif ($op eq "-") {
 541                                 print "$modestr " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;hp=$id"}, $file) . " (removed)\n";
 542                         } elsif ($op eq "*") {
 543                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 544                                 my $from = $1;
 545                                 my $to = $2;
 546                                 print "$modestr " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to;hp=$from"}, $file) . "\n";
 547                         }
 548                 }
 549         }
 550         print "</pre>\n" .
 551               "<br/></div>\n";
 552         git_footer_html();
 553 } elsif ($action eq "blobdiff") {
 554         git_header_html();
 555         print "<div class=\"page_body\"><br/><br/>\n" .
 556               "<pre>\n";
 557         git_diff_html($hash_parent, $hash, $hash_parent, $hash);
 558         print "</pre>\n" .
 559               "<br/></div>";
 560         git_footer_html();
 561 } elsif ($action eq "commitdiff") {
 562         my %co = git_commit($hash);
 563         open my $fd, "-|", "$gitbin/diff-tree -r " . $co{'parent'} . " $hash";
 564         my (@difftree) = map { chomp; $_ } <$fd>;
 565         close $fd;
 566
 567         git_header_html();
 568         print "<div class=\"page_nav\"> view\n" .
 569               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") . " | \n" .
 570               $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "diff") . "\n" .
 571               "<br/><br/></div>\n";
 572         print $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "log_title"}, $co{'title'}) ."\n";
 573         print "<div class=\"page_body\">\n" .
 574               "<pre>\n";
 575         foreach my $line (@difftree) {
 576                 # '*100644->100644      blob    8e5f9bbdf4de94a1bc4b4da8cb06677ce0a57716->8da3a306d0c0c070d87048d14a033df02f40a154      Makefile'
 577                 $line =~ m/^(.)(.*)\t(.*)\t(.*)\t(.*)$/;
 578                 my $op = $1;
 579                 my $mode = $2;
 580                 my $type = $3;
 581                 my $id = $4;
 582                 my $file = $5;
 583                 if ($type eq "blob") {
 584                         if ($op eq "+") {
 585                                 git_diff_html("", $file, "", $id);
 586                         } elsif ($op eq "-") {
 587                                 git_diff_html($file, "", $id, "");
 588                         } elsif ($op eq "*") {
 589                                 $id =~ m/([0-9a-fA-F]+)->([0-9a-fA-F]+)/;
 590                                 git_diff_html($file, $file, $1, $2);
 591                         }
 592                 }
 593         }
 594         print "<br/></pre>\n";
 595         print "</div>";
 596         git_footer_html();
 597 } else {
 598         error_page("403 Forbidden", "unknown action");
 599 }