gitweb/gitweb.cgi

   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 binmode STDOUT, ':utf8';
  18
  19 our $cgi = new CGI;
  20 our $version = "267";
  21 our $my_url = $cgi->url();
  22 our $my_uri = $cgi->url(-absolute => 1);
  23 our $rss_link = "";
  24
  25 # core git executable to use
  26 # this can just be "git" if your webserver has a sensible PATH
  27 our $GIT = "/usr/bin/git";
  28
  29 # absolute fs-path which will be prepended to the project path
  30 #our $projectroot = "/pub/scm";
  31 our $projectroot = "/home/kay/public_html/pub/scm";
  32
  33 # version of the core git binary
  34 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
  35
  36 # location for temporary files needed for diffs
  37 our $git_temp = "/tmp/gitweb";
  38 if (! -d $git_temp) {
  39         mkdir($git_temp, 0700) || die_error("Couldn't mkdir $git_temp");
  40 }
  41
  42 # target of the home link on top of all pages
  43 our $home_link = $my_uri;
  44
  45 # name of your site or organization to appear in page titles
  46 # replace this with something more descriptive for clearer bookmarks
  47 our $site_name = $ENV{'SERVER_NAME'} || "Untitled";
  48
  49 # html text to include at home page
  50 our $home_text = "indextext.html";
  51
  52 # URI of default stylesheet
  53 our $stylesheet = "gitweb.css";
  54
  55 # source of projects list
  56 #our $projects_list = $projectroot;
  57 our $projects_list = "index/index.aux";
  58
  59 # default blob_plain mimetype and default charset for text/plain blob
  60 our $default_blob_plain_mimetype = 'text/plain';
  61 our $default_text_plain_charset  = undef;
  62
  63 # file to use for guessing MIME types before trying /etc/mime.types
  64 # (relative to the current git repository)
  65 our $mimetypes_file = undef;
  66
  67 # input validation and dispatch
  68 our $action = $cgi->param('a');
  69 if (defined $action) {
  70         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
  71                 undef $action;
  72                 die_error(undef, "Invalid action parameter.");
  73         }
  74         if ($action eq "git-logo.png") {
  75                 git_logo();
  76                 exit;
  77         } elsif ($action eq "opml") {
  78                 git_opml();
  79                 exit;
  80         }
  81 }
  82
  83 our $order = $cgi->param('o');
  84 if (defined $order) {
  85         if ($order =~ m/[^0-9a-zA-Z_]/) {
  86                 undef $order;
  87                 die_error(undef, "Invalid order parameter.");
  88         }
  89 }
  90
  91 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
  92 if (defined $project) {
  93         $project =~ s|^/||; $project =~ s|/$||;
  94         $project = validate_input($project);
  95         if (!defined($project)) {
  96                 die_error(undef, "Invalid project parameter.");
  97         }
  98         if (!(-d "$projectroot/$project")) {
  99                 undef $project;
 100                 die_error(undef, "No such directory.");
 101         }
 102         if (!(-e "$projectroot/$project/HEAD")) {
 103                 undef $project;
 104                 die_error(undef, "No such project.");
 105         }
 106         $rss_link = "<link rel=\"alternate\" title=\"" . esc_param($project) . " log\" href=\"" .
 107                     "$my_uri?" . esc_param("p=$project;a=rss") . "\" type=\"application/rss+xml\"/>";
 108         $ENV{'GIT_DIR'} = "$projectroot/$project";
 109 } else {
 110         git_project_list();
 111         exit;
 112 }
 113
 114 our $file_name = $cgi->param('f');
 115 if (defined $file_name) {
 116         $file_name = validate_input($file_name);
 117         if (!defined($file_name)) {
 118                 die_error(undef, "Invalid file parameter.");
 119         }
 120 }
 121
 122 our $hash = $cgi->param('h');
 123 if (defined $hash) {
 124         $hash = validate_input($hash);
 125         if (!defined($hash)) {
 126                 die_error(undef, "Invalid hash parameter.");
 127         }
 128 }
 129
 130 our $hash_parent = $cgi->param('hp');
 131 if (defined $hash_parent) {
 132         $hash_parent = validate_input($hash_parent);
 133         if (!defined($hash_parent)) {
 134                 die_error(undef, "Invalid hash parent parameter.");
 135         }
 136 }
 137
 138 our $hash_base = $cgi->param('hb');
 139 if (defined $hash_base) {
 140         $hash_base = validate_input($hash_base);
 141         if (!defined($hash_base)) {
 142                 die_error(undef, "Invalid hash base parameter.");
 143         }
 144 }
 145
 146 our $page = $cgi->param('pg');
 147 if (defined $page) {
 148         if ($page =~ m/[^0-9]$/) {
 149                 undef $page;
 150                 die_error(undef, "Invalid page parameter.");
 151         }
 152 }
 153
 154 our $searchtext = $cgi->param('s');
 155 if (defined $searchtext) {
 156         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 157                 undef $searchtext;
 158                 die_error(undef, "Invalid search parameter.");
 159         }
 160         $searchtext = quotemeta $searchtext;
 161 }
 162
 163 sub validate_input {
 164         my $input = shift;
 165
 166         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 167                 return $input;
 168         }
 169         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 170                 return undef;
 171         }
 172         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 173                 return undef;
 174         }
 175         return $input;
 176 }
 177
 178 if (!defined $action || $action eq "summary") {
 179         git_summary();
 180         exit;
 181 } elsif ($action eq "heads") {
 182         git_heads();
 183         exit;
 184 } elsif ($action eq "tags") {
 185         git_tags();
 186         exit;
 187 } elsif ($action eq "blob") {
 188         git_blob();
 189         exit;
 190 } elsif ($action eq "blob_plain") {
 191         git_blob_plain();
 192         exit;
 193 } elsif ($action eq "tree") {
 194         git_tree();
 195         exit;
 196 } elsif ($action eq "rss") {
 197         git_rss();
 198         exit;
 199 } elsif ($action eq "commit") {
 200         git_commit();
 201         exit;
 202 } elsif ($action eq "log") {
 203         git_log();
 204         exit;
 205 } elsif ($action eq "blobdiff") {
 206         git_blobdiff();
 207         exit;
 208 } elsif ($action eq "blobdiff_plain") {
 209         git_blobdiff_plain();
 210         exit;
 211 } elsif ($action eq "commitdiff") {
 212         git_commitdiff();
 213         exit;
 214 } elsif ($action eq "commitdiff_plain") {
 215         git_commitdiff_plain();
 216         exit;
 217 } elsif ($action eq "history") {
 218         git_history();
 219         exit;
 220 } elsif ($action eq "search") {
 221         git_search();
 222         exit;
 223 } elsif ($action eq "shortlog") {
 224         git_shortlog();
 225         exit;
 226 } elsif ($action eq "tag") {
 227         git_tag();
 228         exit;
 229 } elsif ($action eq "blame") {
 230         git_blame2();
 231         exit;
 232 } else {
 233         undef $action;
 234         die_error(undef, "Unknown action.");
 235         exit;
 236 }
 237
 238 # quote unsafe chars, but keep the slash, even when it's not
 239 # correct, but quoted slashes look too horrible in bookmarks
 240 sub esc_param {
 241         my $str = shift;
 242         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 243         $str =~ s/\+/%2B/g;
 244         $str =~ s/ /\+/g;
 245         return $str;
 246 }
 247
 248 # replace invalid utf8 character with SUBSTITUTION sequence
 249 sub esc_html {
 250         my $str = shift;
 251         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 252         $str = escapeHTML($str);
 253         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 254         return $str;
 255 }
 256
 257 # git may return quoted and escaped filenames
 258 sub unquote {
 259         my $str = shift;
 260         if ($str =~ m/^"(.*)"$/) {
 261                 $str = $1;
 262                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 263         }
 264         return $str;
 265 }
 266
 267 # CSS class for given age value (in seconds)
 268 sub age_class {
 269         my $age = shift;
 270
 271         if ($age < 60*60*2) {
 272                 return "age0";
 273         } elsif ($age < 60*60*24*2) {
 274                 return "age1";
 275         } else {
 276                 return "age2";
 277         }
 278 }
 279
 280 sub git_header_html {
 281         my $status = shift || "200 OK";
 282         my $expires = shift;
 283
 284         my $title = "$site_name git";
 285         if (defined $project) {
 286                 $title .= " - $project";
 287                 if (defined $action) {
 288                         $title .= "/$action";
 289                         if (defined $file_name) {
 290                                 $title .= " - $file_name";
 291                                 if ($action eq "tree" && $file_name !~ m|/$|) {
 292                                         $title .= "/";
 293                                 }
 294                         }
 295                 }
 296         }
 297         my $content_type;
 298         # require explicit support from the UA if we are to send the page as
 299         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
 300         # we have to do this because MSIE sometimes globs '*/*', pretending to
 301         # support xhtml+xml but choking when it gets what it asked for.
 302         if ($cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ && $cgi->Accept('application/xhtml+xml') != 0) {
 303                 $content_type = 'application/xhtml+xml';
 304         } else {
 305                 $content_type = 'text/html';
 306         }
 307         print $cgi->header(-type=>$content_type, -charset => 'utf-8', -status=> $status, -expires => $expires);
 308         print <<EOF;
 309 <?xml version="1.0" encoding="utf-8"?>
 310 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 311 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
 312 <!-- git web interface v$version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
 313 <!-- git core binaries version $git_version -->
 314 <head>
 315 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
 316 <meta name="robots" content="index, nofollow"/>
 317 <title>$title</title>
 318 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
 319 $rss_link
 320 </head>
 321 <body>
 322 EOF
 323         print "<div class=\"page_header\">\n" .
 324               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
 325               "<img src=\"$my_uri?" . esc_param("a=git-logo.png") . "\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
 326               "</a>\n";
 327         print $cgi->a({-href => esc_param($home_link)}, "projects") . " / ";
 328         if (defined $project) {
 329                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary")}, esc_html($project));
 330                 if (defined $action) {
 331                         print " / $action";
 332                 }
 333                 print "\n";
 334                 if (!defined $searchtext) {
 335                         $searchtext = "";
 336                 }
 337                 my $search_hash;
 338                 if (defined $hash_base) {
 339                         $search_hash = $hash_base;
 340                 } elsif (defined $hash) {
 341                         $search_hash = $hash;
 342                 } else {
 343                         $search_hash = "HEAD";
 344                 }
 345                 $cgi->param("a", "search");
 346                 $cgi->param("h", $search_hash);
 347                 print $cgi->startform(-method => "get", -action => $my_uri) .
 348                       "<div class=\"search\">\n" .
 349                       $cgi->hidden(-name => "p") . "\n" .
 350                       $cgi->hidden(-name => "a") . "\n" .
 351                       $cgi->hidden(-name => "h") . "\n" .
 352                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
 353                       "</div>" .
 354                       $cgi->end_form() . "\n";
 355         }
 356         print "</div>\n";
 357 }
 358
 359 sub git_footer_html {
 360         print "<div class=\"page_footer\">\n";
 361         if (defined $project) {
 362                 my $descr = git_read_description($project);
 363                 if (defined $descr) {
 364                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
 365                 }
 366                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=rss"), -class => "rss_logo"}, "RSS") . "\n";
 367         } else {
 368                 print $cgi->a({-href => "$my_uri?" . esc_param("a=opml"), -class => "rss_logo"}, "OPML") . "\n";
 369         }
 370         print "</div>\n" .
 371               "</body>\n" .
 372               "</html>";
 373 }
 374
 375 sub die_error {
 376         my $status = shift || "403 Forbidden";
 377         my $error = shift || "Malformed query, file missing or permission denied";
 378
 379         git_header_html($status);
 380         print "<div class=\"page_body\">\n" .
 381               "<br/><br/>\n" .
 382               "$status - $error\n" .
 383               "<br/>\n" .
 384               "</div>\n";
 385         git_footer_html();
 386         exit;
 387 }
 388
 389 sub git_page_nav {
 390         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
 391         $extra = '' if !defined $extra; # pager or formats
 392
 393         my @navs = qw(summary shortlog log commit commitdiff tree);
 394         if ($suppress) {
 395                 @navs = grep { $_ ne $suppress } @navs;
 396         }
 397
 398         my %arg = map { $_, ''} @navs;
 399         if (defined $head) {
 400                 for (qw(commit commitdiff)) {
 401                         $arg{$_} = ";h=$head";
 402                 }
 403                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
 404                         for (qw(shortlog log)) {
 405                                 $arg{$_} = ";h=$head";
 406                         }
 407                 }
 408         }
 409         $arg{tree} .= ";h=$treehead" if defined $treehead;
 410         $arg{tree} .= ";hb=$treebase" if defined $treebase;
 411
 412         print "<div class=\"page_nav\">\n" .
 413                 (join " | ",
 414                  map { $_ eq $current
 415                                          ? $_
 416                                          : $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$_$arg{$_}")}, "$_")
 417                                  }
 418                  @navs);
 419         print "<br/>\n$extra<br/>\n" .
 420               "</div>\n";
 421 }
 422
 423 sub git_header_div {
 424         my ($action, $title, $hash, $hash_base) = @_;
 425         my $rest = '';
 426
 427         $rest .= ";h=$hash" if $hash;
 428         $rest .= ";hb=$hash_base" if $hash_base;
 429
 430         print "<div class=\"header\">\n" .
 431               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$action$rest"),
 432                        -class => "title"}, $title ? $title : $action) . "\n" .
 433               "</div>\n";
 434 }
 435
 436 sub git_get_paging_nav {
 437         my ($action, $hash, $head, $page, $nrevs) = @_;
 438         my $paging_nav;
 439
 440
 441         if ($hash ne $head || $page) {
 442                 $paging_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$action")}, "HEAD");
 443         } else {
 444                 $paging_nav .= "HEAD";
 445         }
 446
 447         if ($page > 0) {
 448                 $paging_nav .= " &sdot; " .
 449                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$action;h=$hash;pg=" . ($page-1)),
 450                                                          -accesskey => "p", -title => "Alt-p"}, "prev");
 451         } else {
 452                 $paging_nav .= " &sdot; prev";
 453         }
 454
 455         if ($nrevs >= (100 * ($page+1)-1)) {
 456                 $paging_nav .= " &sdot; " .
 457                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$action;h=$hash;pg=" . ($page+1)),
 458                                                          -accesskey => "n", -title => "Alt-n"}, "next");
 459         } else {
 460                 $paging_nav .= " &sdot; next";
 461         }
 462
 463         return $paging_nav;
 464 }
 465
 466 sub git_get_type {
 467         my $hash = shift;
 468
 469         open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 470         my $type = <$fd>;
 471         close $fd or return;
 472         chomp $type;
 473         return $type;
 474 }
 475
 476 sub git_read_head {
 477         my $project = shift;
 478         my $oENV = $ENV{'GIT_DIR'};
 479         my $retval = undef;
 480         $ENV{'GIT_DIR'} = "$projectroot/$project";
 481         if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 482                 my $head = <$fd>;
 483                 close $fd;
 484                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 485                         $retval = $1;
 486                 }
 487         }
 488         if (defined $oENV) {
 489                 $ENV{'GIT_DIR'} = $oENV;
 490         }
 491         return $retval;
 492 }
 493
 494 sub git_read_hash {
 495         my $path = shift;
 496
 497         open my $fd, "$projectroot/$path" or return undef;
 498         my $head = <$fd>;
 499         close $fd;
 500         chomp $head;
 501         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 502                 return $head;
 503         }
 504 }
 505
 506 sub git_read_description {
 507         my $path = shift;
 508
 509         open my $fd, "$projectroot/$path/description" or return undef;
 510         my $descr = <$fd>;
 511         close $fd;
 512         chomp $descr;
 513         return $descr;
 514 }
 515
 516 sub git_read_tag {
 517         my $tag_id = shift;
 518         my %tag;
 519         my @comment;
 520
 521         open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 522         $tag{'id'} = $tag_id;
 523         while (my $line = <$fd>) {
 524                 chomp $line;
 525                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 526                         $tag{'object'} = $1;
 527                 } elsif ($line =~ m/^type (.+)$/) {
 528                         $tag{'type'} = $1;
 529                 } elsif ($line =~ m/^tag (.+)$/) {
 530                         $tag{'name'} = $1;
 531                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 532                         $tag{'author'} = $1;
 533                         $tag{'epoch'} = $2;
 534                         $tag{'tz'} = $3;
 535                 } elsif ($line =~ m/--BEGIN/) {
 536                         push @comment, $line;
 537                         last;
 538                 } elsif ($line eq "") {
 539                         last;
 540                 }
 541         }
 542         push @comment, <$fd>;
 543         $tag{'comment'} = \@comment;
 544         close $fd or return;
 545         if (!defined $tag{'name'}) {
 546                 return
 547         };
 548         return %tag
 549 }
 550
 551 sub age_string {
 552         my $age = shift;
 553         my $age_str;
 554
 555         if ($age > 60*60*24*365*2) {
 556                 $age_str = (int $age/60/60/24/365);
 557                 $age_str .= " years ago";
 558         } elsif ($age > 60*60*24*(365/12)*2) {
 559                 $age_str = int $age/60/60/24/(365/12);
 560                 $age_str .= " months ago";
 561         } elsif ($age > 60*60*24*7*2) {
 562                 $age_str = int $age/60/60/24/7;
 563                 $age_str .= " weeks ago";
 564         } elsif ($age > 60*60*24*2) {
 565                 $age_str = int $age/60/60/24;
 566                 $age_str .= " days ago";
 567         } elsif ($age > 60*60*2) {
 568                 $age_str = int $age/60/60;
 569                 $age_str .= " hours ago";
 570         } elsif ($age > 60*2) {
 571                 $age_str = int $age/60;
 572                 $age_str .= " min ago";
 573         } elsif ($age > 2) {
 574                 $age_str = int $age;
 575                 $age_str .= " sec ago";
 576         } else {
 577                 $age_str .= " right now";
 578         }
 579         return $age_str;
 580 }
 581
 582 sub git_read_commit {
 583         my $commit_id = shift;
 584         my $commit_text = shift;
 585
 586         my @commit_lines;
 587         my %co;
 588
 589         if (defined $commit_text) {
 590                 @commit_lines = @$commit_text;
 591         } else {
 592                 $/ = "\0";
 593                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
 594                 @commit_lines = split '\n', <$fd>;
 595                 close $fd or return;
 596                 $/ = "\n";
 597                 pop @commit_lines;
 598         }
 599         my $header = shift @commit_lines;
 600         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 601                 return;
 602         }
 603         ($co{'id'}, my @parents) = split ' ', $header;
 604         $co{'parents'} = \@parents;
 605         $co{'parent'} = $parents[0];
 606         while (my $line = shift @commit_lines) {
 607                 last if $line eq "\n";
 608                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 609                         $co{'tree'} = $1;
 610                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 611                         $co{'author'} = $1;
 612                         $co{'author_epoch'} = $2;
 613                         $co{'author_tz'} = $3;
 614                         if ($co{'author'} =~ m/^([^<]+) </) {
 615                                 $co{'author_name'} = $1;
 616                         } else {
 617                                 $co{'author_name'} = $co{'author'};
 618                         }
 619                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 620                         $co{'committer'} = $1;
 621                         $co{'committer_epoch'} = $2;
 622                         $co{'committer_tz'} = $3;
 623                         $co{'committer_name'} = $co{'committer'};
 624                         $co{'committer_name'} =~ s/ <.*//;
 625                 }
 626         }
 627         if (!defined $co{'tree'}) {
 628                 return;
 629         };
 630
 631         foreach my $title (@commit_lines) {
 632                 $title =~ s/^    //;
 633                 if ($title ne "") {
 634                         $co{'title'} = chop_str($title, 80, 5);
 635                         # remove leading stuff of merges to make the interesting part visible
 636                         if (length($title) > 50) {
 637                                 $title =~ s/^Automatic //;
 638                                 $title =~ s/^merge (of|with) /Merge ... /i;
 639                                 if (length($title) > 50) {
 640                                         $title =~ s/(http|rsync):\/\///;
 641                                 }
 642                                 if (length($title) > 50) {
 643                                         $title =~ s/(master|www|rsync)\.//;
 644                                 }
 645                                 if (length($title) > 50) {
 646                                         $title =~ s/kernel.org:?//;
 647                                 }
 648                                 if (length($title) > 50) {
 649                                         $title =~ s/\/pub\/scm//;
 650                                 }
 651                         }
 652                         $co{'title_short'} = chop_str($title, 50, 5);
 653                         last;
 654                 }
 655         }
 656         # remove added spaces
 657         foreach my $line (@commit_lines) {
 658                 $line =~ s/^    //;
 659         }
 660         $co{'comment'} = \@commit_lines;
 661
 662         my $age = time - $co{'committer_epoch'};
 663         $co{'age'} = $age;
 664         $co{'age_string'} = age_string($age);
 665         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 666         if ($age > 60*60*24*7*2) {
 667                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 668                 $co{'age_string_age'} = $co{'age_string'};
 669         } else {
 670                 $co{'age_string_date'} = $co{'age_string'};
 671                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 672         }
 673         return %co;
 674 }
 675
 676 sub git_diff_print {
 677         my $from = shift;
 678         my $from_name = shift;
 679         my $to = shift;
 680         my $to_name = shift;
 681         my $format = shift || "html";
 682
 683         my $from_tmp = "/dev/null";
 684         my $to_tmp = "/dev/null";
 685         my $pid = $$;
 686
 687         # create tmp from-file
 688         if (defined $from) {
 689                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
 690                 open my $fd2, "> $from_tmp";
 691                 open my $fd, "-|", $GIT, "cat-file", "blob", $from;
 692                 my @file = <$fd>;
 693                 print $fd2 @file;
 694                 close $fd2;
 695                 close $fd;
 696         }
 697
 698         # create tmp to-file
 699         if (defined $to) {
 700                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
 701                 open my $fd2, "> $to_tmp";
 702                 open my $fd, "-|", $GIT, "cat-file", "blob", $to;
 703                 my @file = <$fd>;
 704                 print $fd2 @file;
 705                 close $fd2;
 706                 close $fd;
 707         }
 708
 709         open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
 710         if ($format eq "plain") {
 711                 undef $/;
 712                 print <$fd>;
 713                 $/ = "\n";
 714         } else {
 715                 while (my $line = <$fd>) {
 716                         chomp $line;
 717                         my $char = substr($line, 0, 1);
 718                         my $diff_class = "";
 719                         if ($char eq '+') {
 720                                 $diff_class = " add";
 721                         } elsif ($char eq "-") {
 722                                 $diff_class = " rem";
 723                         } elsif ($char eq "@") {
 724                                 $diff_class = " chunk_header";
 725                         } elsif ($char eq "\\") {
 726                                 # skip errors
 727                                 next;
 728                         }
 729                         while ((my $pos = index($line, "\t")) != -1) {
 730                                 if (my $count = (8 - (($pos-1) % 8))) {
 731                                         my $spaces = ' ' x $count;
 732                                         $line =~ s/\t/$spaces/;
 733                                 }
 734                         }
 735                         print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 736                 }
 737         }
 738         close $fd;
 739
 740         if (defined $from) {
 741                 unlink($from_tmp);
 742         }
 743         if (defined $to) {
 744                 unlink($to_tmp);
 745         }
 746 }
 747
 748 sub mode_str {
 749         my $mode = oct shift;
 750
 751         if (S_ISDIR($mode & S_IFMT)) {
 752                 return 'drwxr-xr-x';
 753         } elsif (S_ISLNK($mode)) {
 754                 return 'lrwxrwxrwx';
 755         } elsif (S_ISREG($mode)) {
 756                 # git cares only about the executable bit
 757                 if ($mode & S_IXUSR) {
 758                         return '-rwxr-xr-x';
 759                 } else {
 760                         return '-rw-r--r--';
 761                 };
 762         } else {
 763                 return '----------';
 764         }
 765 }
 766
 767 sub chop_str {
 768         my $str = shift;
 769         my $len = shift;
 770         my $add_len = shift || 10;
 771
 772         # allow only $len chars, but don't cut a word if it would fit in $add_len
 773         # if it doesn't fit, cut it if it's still longer than the dots we would add
 774         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 775         my $body = $1;
 776         my $tail = $2;
 777         if (length($tail) > 4) {
 778                 $tail = " ...";
 779                 $body =~ s/&[^;]$//; # remove chopped character entities
 780         }
 781         return "$body$tail";
 782 }
 783
 784 sub file_type {
 785         my $mode = oct shift;
 786
 787         if (S_ISDIR($mode & S_IFMT)) {
 788                 return "directory";
 789         } elsif (S_ISLNK($mode)) {
 790                 return "symlink";
 791         } elsif (S_ISREG($mode)) {
 792                 return "file";
 793         } else {
 794                 return "unknown";
 795         }
 796 }
 797
 798 sub format_log_line_html {
 799         my $line = shift;
 800
 801         $line = esc_html($line);
 802         $line =~ s/ /&nbsp;/g;
 803         if ($line =~ m/([0-9a-fA-F]{40})/) {
 804                 my $hash_text = $1;
 805                 if (git_get_type($hash_text) eq "commit") {
 806                         my $link = $cgi->a({-class => "text", -href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_text")}, $hash_text);
 807                         $line =~ s/$hash_text/$link/;
 808                 }
 809         }
 810         return $line;
 811 }
 812
 813 sub date_str {
 814         my $epoch = shift;
 815         my $tz = shift || "-0000";
 816
 817         my %date;
 818         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 819         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 820         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 821         $date{'hour'} = $hour;
 822         $date{'minute'} = $min;
 823         $date{'mday'} = $mday;
 824         $date{'day'} = $days[$wday];
 825         $date{'month'} = $months[$mon];
 826         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 827         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 828
 829         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 830         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 831         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 832         $date{'hour_local'} = $hour;
 833         $date{'minute_local'} = $min;
 834         $date{'tz_local'} = $tz;
 835         return %date;
 836 }
 837
 838 # git-logo (cached in browser for one day)
 839 sub git_logo {
 840         binmode STDOUT, ':raw';
 841         print $cgi->header(-type => 'image/png', -expires => '+1d');
 842         # cat git-logo.png | hexdump -e '16/1 " %02x"  "\n"' | sed 's/ /\\x/g'
 843         print   "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
 844                 "\x00\x00\x00\x48\x00\x00\x00\x1b\x04\x03\x00\x00\x00\x2d\xd9\xd4" .
 845                 "\x2d\x00\x00\x00\x18\x50\x4c\x54\x45\xff\xff\xff\x60\x60\x5d\xb0" .
 846                 "\xaf\xaa\x00\x80\x00\xce\xcd\xc7\xc0\x00\x00\xe8\xe8\xe6\xf7\xf7" .
 847                 "\xf6\x95\x0c\xa7\x47\x00\x00\x00\x73\x49\x44\x41\x54\x28\xcf\x63" .
 848                 "\x48\x67\x20\x04\x4a\x5c\x18\x0a\x08\x2a\x62\x53\x61\x20\x02\x08" .
 849                 "\x0d\x69\x45\xac\xa1\xa1\x01\x30\x0c\x93\x60\x36\x26\x52\x91\xb1" .
 850                 "\x01\x11\xd6\xe1\x55\x64\x6c\x6c\xcc\x6c\x6c\x0c\xa2\x0c\x70\x2a" .
 851                 "\x62\x06\x2a\xc1\x62\x1d\xb3\x01\x02\x53\xa4\x08\xe8\x00\x03\x18" .
 852                 "\x26\x56\x11\xd4\xe1\x20\x97\x1b\xe0\xb4\x0e\x35\x24\x71\x29\x82" .
 853                 "\x99\x30\xb8\x93\x0a\x11\xb9\x45\x88\xc1\x8d\xa0\xa2\x44\x21\x06" .
 854                 "\x27\x41\x82\x40\x85\xc1\x45\x89\x20\x70\x01\x00\xa4\x3d\x21\xc5" .
 855                 "\x12\x1c\x9a\xfe\x00\x00\x00\x00\x49\x45\x4e\x44\xae\x42\x60\x82";
 856 }
 857
 858 sub get_file_owner {
 859         my $path = shift;
 860
 861         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 862         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 863         if (!defined $gcos) {
 864                 return undef;
 865         }
 866         my $owner = $gcos;
 867         $owner =~ s/[,;].*$//;
 868         return decode("utf8", $owner, Encode::FB_DEFAULT);
 869 }
 870
 871 sub git_read_projects {
 872         my @list;
 873
 874         if (-d $projects_list) {
 875                 # search in directory
 876                 my $dir = $projects_list;
 877                 opendir my ($dh), $dir or return undef;
 878                 while (my $dir = readdir($dh)) {
 879                         if (-e "$projectroot/$dir/HEAD") {
 880                                 my $pr = {
 881                                         path => $dir,
 882                                 };
 883                                 push @list, $pr
 884                         }
 885                 }
 886                 closedir($dh);
 887         } elsif (-f $projects_list) {
 888                 # read from file(url-encoded):
 889                 # 'git%2Fgit.git Linus+Torvalds'
 890                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 891                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 892                 open my ($fd), $projects_list or return undef;
 893                 while (my $line = <$fd>) {
 894                         chomp $line;
 895                         my ($path, $owner) = split ' ', $line;
 896                         $path = unescape($path);
 897                         $owner = unescape($owner);
 898                         if (!defined $path) {
 899                                 next;
 900                         }
 901                         if (-e "$projectroot/$path/HEAD") {
 902                                 my $pr = {
 903                                         path => $path,
 904                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 905                                 };
 906                                 push @list, $pr
 907                         }
 908                 }
 909                 close $fd;
 910         }
 911         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 912         return @list;
 913 }
 914
 915 sub git_get_project_config {
 916         my $key = shift;
 917
 918         return unless ($key);
 919         $key =~ s/^gitweb\.//;
 920         return if ($key =~ m/\W/);
 921
 922         my $val = qx($GIT repo-config --get gitweb.$key);
 923         return ($val);
 924 }
 925
 926 sub git_get_project_config_bool {
 927         my $val = git_get_project_config (@_);
 928         if ($val and $val =~ m/true|yes|on/) {
 929                 return (1);
 930         }
 931         return; # implicit false
 932 }
 933
 934 sub git_project_list {
 935         my @list = git_read_projects();
 936         my @projects;
 937         if (!@list) {
 938                 die_error(undef, "No project found.");
 939         }
 940         foreach my $pr (@list) {
 941                 my $head = git_read_head($pr->{'path'});
 942                 if (!defined $head) {
 943                         next;
 944                 }
 945                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
 946                 my %co = git_read_commit($head);
 947                 if (!%co) {
 948                         next;
 949                 }
 950                 $pr->{'commit'} = \%co;
 951                 if (!defined $pr->{'descr'}) {
 952                         my $descr = git_read_description($pr->{'path'}) || "";
 953                         $pr->{'descr'} = chop_str($descr, 25, 5);
 954                 }
 955                 if (!defined $pr->{'owner'}) {
 956                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
 957                 }
 958                 push @projects, $pr;
 959         }
 960         git_header_html();
 961         if (-f $home_text) {
 962                 print "<div class=\"index_include\">\n";
 963                 open (my $fd, $home_text);
 964                 print <$fd>;
 965                 close $fd;
 966                 print "</div>\n";
 967         }
 968         print "<table class=\"project_list\">\n" .
 969               "<tr>\n";
 970         if (!defined($order) || (defined($order) && ($order eq "project"))) {
 971                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
 972                 print "<th>Project</th>\n";
 973         } else {
 974                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=project")}, "Project") . "</th>\n";
 975         }
 976         if (defined($order) && ($order eq "descr")) {
 977                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
 978                 print "<th>Description</th>\n";
 979         } else {
 980                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=descr")}, "Description") . "</th>\n";
 981         }
 982         if (defined($order) && ($order eq "owner")) {
 983                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
 984                 print "<th>Owner</th>\n";
 985         } else {
 986                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=owner")}, "Owner") . "</th>\n";
 987         }
 988         if (defined($order) && ($order eq "age")) {
 989                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
 990                 print "<th>Last Change</th>\n";
 991         } else {
 992                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=age")}, "Last Change") . "</th>\n";
 993         }
 994         print "<th></th>\n" .
 995               "</tr>\n";
 996         my $alternate = 0;
 997         foreach my $pr (@projects) {
 998                 if ($alternate) {
 999                         print "<tr class=\"dark\">\n";
1000                 } else {
1001                         print "<tr class=\"light\">\n";
1002                 }
1003                 $alternate ^= 1;
1004                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary"), -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
1005                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
1006                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
1007                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" . $pr->{'commit'}{'age_string'} . "</td>\n" .
1008                       "<td class=\"link\">" .
1009                       $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary")}, "summary") .
1010                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=shortlog")}, "shortlog") .
1011                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=log")}, "log") .
1012                       "</td>\n" .
1013                       "</tr>\n";
1014         }
1015         print "</table>\n";
1016         git_footer_html();
1017 }
1018
1019 sub read_info_ref {
1020         my $type = shift || "";
1021         my %refs;
1022         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
1023         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
1024         open my $fd, "$projectroot/$project/info/refs" or return;
1025         while (my $line = <$fd>) {
1026                 chomp $line;
1027                 # attention: for $type == "" it saves only last path part of ref name
1028                 # e.g. from 'refs/heads/jn/gitweb' it would leave only 'gitweb'
1029                 if ($line =~ m/^([0-9a-fA-F]{40})\t.*$type\/([^\^]+)/) {
1030                         if (defined $refs{$1}) {
1031                                 $refs{$1} .= " / $2";
1032                         } else {
1033                                 $refs{$1} = $2;
1034                         }
1035                 }
1036         }
1037         close $fd or return;
1038         return \%refs;
1039 }
1040
1041 sub git_get_referencing {
1042         my ($refs, $id) = @_;
1043
1044         if (defined $refs->{$id}) {
1045                 return ' <span class="tag">' . esc_html($refs->{$id}) . '</span>';
1046         } else {
1047                 return "";
1048         }
1049 }
1050
1051 sub git_read_refs {
1052         my $ref_dir = shift;
1053         my @reflist;
1054
1055         my @refs;
1056         opendir my $dh, "$projectroot/$project/$ref_dir";
1057         while (my $dir = readdir($dh)) {
1058                 if ($dir =~ m/^\./) {
1059                         next;
1060                 }
1061                 if (-d "$projectroot/$project/$ref_dir/$dir") {
1062                         opendir my $dh2, "$projectroot/$project/$ref_dir/$dir";
1063                         my @subdirs = grep !m/^\./, readdir $dh2;
1064                         closedir($dh2);
1065                         foreach my $subdir (@subdirs) {
1066                                 push @refs, "$dir/$subdir"
1067                         }
1068                         next;
1069                 }
1070                 push @refs, $dir;
1071         }
1072         closedir($dh);
1073         foreach my $ref_file (@refs) {
1074                 my $ref_id = git_read_hash("$project/$ref_dir/$ref_file");
1075                 my $type = git_get_type($ref_id) || next;
1076                 my %ref_item;
1077                 my %co;
1078                 $ref_item{'type'} = $type;
1079                 $ref_item{'id'} = $ref_id;
1080                 $ref_item{'epoch'} = 0;
1081                 $ref_item{'age'} = "unknown";
1082                 if ($type eq "tag") {
1083                         my %tag = git_read_tag($ref_id);
1084                         $ref_item{'comment'} = $tag{'comment'};
1085                         if ($tag{'type'} eq "commit") {
1086                                 %co = git_read_commit($tag{'object'});
1087                                 $ref_item{'epoch'} = $co{'committer_epoch'};
1088                                 $ref_item{'age'} = $co{'age_string'};
1089                         } elsif (defined($tag{'epoch'})) {
1090                                 my $age = time - $tag{'epoch'};
1091                                 $ref_item{'epoch'} = $tag{'epoch'};
1092                                 $ref_item{'age'} = age_string($age);
1093                         }
1094                         $ref_item{'reftype'} = $tag{'type'};
1095                         $ref_item{'name'} = $tag{'name'};
1096                         $ref_item{'refid'} = $tag{'object'};
1097                 } elsif ($type eq "commit"){
1098                         %co = git_read_commit($ref_id);
1099                         $ref_item{'reftype'} = "commit";
1100                         $ref_item{'name'} = $ref_file;
1101                         $ref_item{'title'} = $co{'title'};
1102                         $ref_item{'refid'} = $ref_id;
1103                         $ref_item{'epoch'} = $co{'committer_epoch'};
1104                         $ref_item{'age'} = $co{'age_string'};
1105                 } else {
1106                         $ref_item{'reftype'} = $type;
1107                         $ref_item{'name'} = $ref_file;
1108                         $ref_item{'refid'} = $ref_id;
1109                 }
1110
1111                 push @reflist, \%ref_item;
1112         }
1113         # sort tags by age
1114         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1115         return \@reflist;
1116 }
1117
1118 sub git_shortlog_body {
1119         # uses global variable $project
1120         my ($revlist, $from, $to, $refs, $extra) = @_;
1121         $from = 0 unless defined $from;
1122         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1123
1124         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1125         my $alternate = 0;
1126         for (my $i = $from; $i <= $to; $i++) {
1127                 my $commit = $revlist->[$i];
1128                 #my $ref = defined $refs ? git_get_referencing($refs, $commit) : '';
1129                 my $ref = git_get_referencing($refs, $commit);
1130                 my %co = git_read_commit($commit);
1131                 my %ad = date_str($co{'author_epoch'});
1132                 if ($alternate) {
1133                         print "<tr class=\"dark\">\n";
1134                 } else {
1135                         print "<tr class=\"light\">\n";
1136                 }
1137                 $alternate ^= 1;
1138                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1139                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1140                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1141                       "<td>";
1142                 if (length($co{'title_short'}) < length($co{'title'})) {
1143                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"),
1144                                        -class => "list", -title => "$co{'title'}"},
1145                               "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
1146                 } else {
1147                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"),
1148                                        -class => "list"},
1149                               "<b>" . esc_html($co{'title'}) . "$ref</b>");
1150                 }
1151                 print "</td>\n" .
1152                       "<td class=\"link\">" .
1153                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") . " | " .
1154                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1155                       "</td>\n" .
1156                       "</tr>\n";
1157         }
1158         if (defined $extra) {
1159                 print "<tr>\n" .
1160                       "<td colspan=\"4\">$extra</td>\n" .
1161                       "</tr>\n";
1162         }
1163         print "</table>\n";
1164 }
1165
1166 sub git_tags_body {
1167         # uses global variable $project
1168         my ($taglist, $from, $to, $extra) = @_;
1169         $from = 0 unless defined $from;
1170         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1171
1172         print "<table class=\"tags\" cellspacing=\"0\">\n";
1173         my $alternate = 0;
1174         for (my $i = $from; $i <= $to; $i++) {
1175                 my $entry = $taglist->[$i];
1176                 my %tag = %$entry;
1177                 my $comment_lines = $tag{'comment'};
1178                 my $comment = shift @$comment_lines;
1179                 my $comment_short;
1180                 if (defined $comment) {
1181                         $comment_short = chop_str($comment, 30, 5);
1182                 }
1183                 if ($alternate) {
1184                         print "<tr class=\"dark\">\n";
1185                 } else {
1186                         print "<tr class=\"light\">\n";
1187                 }
1188                 $alternate ^= 1;
1189                 print "<td><i>$tag{'age'}</i></td>\n" .
1190                       "<td>" .
1191                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"),
1192                                -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1193                       "</td>\n" .
1194                       "<td>";
1195                 if (defined $comment) {
1196                         if (length($comment_short) < length($comment)) {
1197                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}"),
1198                                                -class => "list", -title => $comment}, $comment_short);
1199                         } else {
1200                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}"),
1201                                                -class => "list"}, $comment);
1202                         }
1203                 }
1204                 print "</td>\n" .
1205                       "<td class=\"selflink\">";
1206                 if ($tag{'type'} eq "tag") {
1207                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag");
1208                 } else {
1209                         print "&nbsp;";
1210                 }
1211                 print "</td>\n" .
1212                       "<td class=\"link\">" . " | " .
1213                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1214                 if ($tag{'reftype'} eq "commit") {
1215                         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1216                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
1217                 } elsif ($tag{'reftype'} eq "blob") {
1218                         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$tag{'refid'}")}, "raw");
1219                 }
1220                 print "</td>\n" .
1221                       "</tr>";
1222         }
1223         if (defined $extra) {
1224                 print "<tr>\n" .
1225                       "<td colspan=\"5\">$extra</td>\n" .
1226                       "</tr>\n";
1227         }
1228         print "</table>\n";
1229 }
1230
1231 sub git_heads_body {
1232         # uses global variable $project
1233         my ($taglist, $head, $from, $to, $extra) = @_;
1234         $from = 0 unless defined $from;
1235         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1236
1237         print "<table class=\"heads\" cellspacing=\"0\">\n";
1238         my $alternate = 0;
1239         for (my $i = $from; $i <= $to; $i++) {
1240                 my $entry = $taglist->[$i];
1241                 my %tag = %$entry;
1242                 my $curr = $tag{'id'} eq $head;
1243                 if ($alternate) {
1244                         print "<tr class=\"dark\">\n";
1245                 } else {
1246                         print "<tr class=\"light\">\n";
1247                 }
1248                 $alternate ^= 1;
1249                 print "<td><i>$tag{'age'}</i></td>\n" .
1250                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
1251                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"),
1252                                -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1253                       "</td>\n" .
1254                       "<td class=\"link\">" .
1255                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") . " | " .
1256                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1257                       "</td>\n" .
1258                       "</tr>";
1259         }
1260         if (defined $extra) {
1261                 print "<tr>\n" .
1262                       "<td colspan=\"3\">$extra</td>\n" .
1263                       "</tr>\n";
1264         }
1265         print "</table>\n";
1266 }
1267
1268 sub git_summary {
1269         my $descr = git_read_description($project) || "none";
1270         my $head = git_read_head($project);
1271         my %co = git_read_commit($head);
1272         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1273
1274         my $owner;
1275         if (-f $projects_list) {
1276                 open (my $fd , $projects_list);
1277                 while (my $line = <$fd>) {
1278                         chomp $line;
1279                         my ($pr, $ow) = split ' ', $line;
1280                         $pr = unescape($pr);
1281                         $ow = unescape($ow);
1282                         if ($pr eq $project) {
1283                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
1284                                 last;
1285                         }
1286                 }
1287                 close $fd;
1288         }
1289         if (!defined $owner) {
1290                 $owner = get_file_owner("$projectroot/$project");
1291         }
1292
1293         my $refs = read_info_ref();
1294         git_header_html();
1295         git_page_nav('summary','', $head);
1296
1297         print "<div class=\"title\">&nbsp;</div>\n";
1298         print "<table cellspacing=\"0\">\n" .
1299               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1300               "<tr><td>owner</td><td>$owner</td></tr>\n" .
1301               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n" .
1302               "</table>\n";
1303
1304         open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_read_head($project)
1305                 or die_error(undef, "Open git-rev-list failed.");
1306         my @revlist = map { chomp; $_ } <$fd>;
1307         close $fd;
1308         git_header_div('shortlog');
1309         git_shortlog_body(\@revlist, 0, 15, $refs,
1310                           $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "..."));
1311
1312         my $taglist = git_read_refs("refs/tags");
1313         if (defined @$taglist) {
1314                 git_header_div('tags');
1315                 git_tags_body($taglist, 0, 15,
1316                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags")}, "..."));
1317         }
1318
1319         my $headlist = git_read_refs("refs/heads");
1320         if (defined @$headlist) {
1321                 git_header_div('heads');
1322                 git_heads_body($taglist, $head, 0, 15,
1323                                $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads")}, "..."));
1324         }
1325
1326         git_footer_html();
1327 }
1328
1329 sub git_print_page_path {
1330         my $name = shift;
1331         my $type = shift;
1332
1333         if (!defined $name) {
1334                 print "<div class=\"page_path\"><b>/</b></div>\n";
1335         } elsif ($type =~ "blob") {
1336                 print "<div class=\"page_path\"><b>" .
1337                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;f=$file_name")}, esc_html($name)) . "</b><br/></div>\n";
1338         } else {
1339                 print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
1340         }
1341 }
1342
1343 sub git_tag {
1344         my $head = git_read_head($project);
1345         git_header_html();
1346         git_page_nav('','', $head,undef,$head);
1347         my %tag = git_read_tag($hash);
1348         git_header_div('commit', esc_html($tag{'name'}), $hash);
1349         print "<div class=\"title_text\">\n" .
1350               "<table cellspacing=\"0\">\n" .
1351               "<tr>\n" .
1352               "<td>object</td>\n" .
1353               "<td>" . $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'object'}) . "</td>\n" .
1354               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'type'}) . "</td>\n" .
1355               "</tr>\n";
1356         if (defined($tag{'author'})) {
1357                 my %ad = date_str($tag{'epoch'}, $tag{'tz'});
1358                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1359                 print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1360         }
1361         print "</table>\n\n" .
1362               "</div>\n";
1363         print "<div class=\"page_body\">";
1364         my $comment = $tag{'comment'};
1365         foreach my $line (@$comment) {
1366                 print esc_html($line) . "<br/>\n";
1367         }
1368         print "</div>\n";
1369         git_footer_html();
1370 }
1371
1372 sub git_blame2 {
1373         my $fd;
1374         my $ftype;
1375         die_error(undef, "Permission denied.") if (!git_get_project_config_bool ('blame'));
1376         die_error('404 Not Found', "File name not defined") if (!$file_name);
1377         $hash_base ||= git_read_head($project);
1378         die_error(undef, "Reading commit failed") unless ($hash_base);
1379         my %co = git_read_commit($hash_base)
1380                 or die_error(undef, "Reading commit failed");
1381         if (!defined $hash) {
1382                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1383                         or die_error(undef, "Error looking up file");
1384         }
1385         $ftype = git_get_type($hash);
1386         if ($ftype !~ "blob") {
1387                 die_error("400 Bad Request", "object is not a blob");
1388         }
1389         open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
1390                 or die_error(undef, "Open git-blame failed.");
1391         git_header_html();
1392         my $formats_nav =
1393                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
1394                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head");
1395         git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1396         git_header_div('commit', esc_html($co{'title'}), $hash_base);
1397         git_print_page_path($file_name, $ftype);
1398         my @rev_color = (qw(light dark));
1399         my $num_colors = scalar(@rev_color);
1400         my $current_color = 0;
1401         my $last_rev;
1402         print "<div class=\"page_body\">\n";
1403         print "<table class=\"blame\">\n";
1404         print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
1405         while (<$fd>) {
1406                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
1407                 my $full_rev = $1;
1408                 my $rev = substr($full_rev, 0, 8);
1409                 my $lineno = $2;
1410                 my $data = $3;
1411
1412                 if (!defined $last_rev) {
1413                         $last_rev = $full_rev;
1414                 } elsif ($last_rev ne $full_rev) {
1415                         $last_rev = $full_rev;
1416                         $current_color = ++$current_color % $num_colors;
1417                 }
1418                 print "<tr class=\"$rev_color[$current_color]\">\n";
1419                 print "<td class=\"sha1\">" .
1420                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$full_rev;f=$file_name")}, esc_html($rev)) . "</td>\n";
1421                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
1422                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
1423                 print "</tr>\n";
1424         }
1425         print "</table>\n";
1426         print "</div>";
1427         close $fd or print "Reading blob failed\n";
1428         git_footer_html();
1429 }
1430
1431 sub git_blame {
1432         my $fd;
1433         die_error('403 Permission denied', "Permission denied.") if (!git_get_project_config_bool ('blame'));
1434         die_error('404 Not Found', "What file will it be, master?") if (!$file_name);
1435         $hash_base ||= git_read_head($project);
1436         die_error(undef, "Reading commit failed.") unless ($hash_base);
1437         my %co = git_read_commit($hash_base)
1438                 or die_error(undef, "Reading commit failed.");
1439         if (!defined $hash) {
1440                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1441                         or die_error(undef, "Error lookup file.");
1442         }
1443         open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
1444                 or die_error(undef, "Open git-annotate failed.");
1445         git_header_html();
1446         my $formats_nav =
1447                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
1448                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head");
1449         git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1450         git_header_div('commit', esc_html($co{'title'}), $hash_base);
1451         git_print_page_path($file_name);
1452         print "<div class=\"page_body\">\n";
1453         print <<HTML;
1454 <table class="blame">
1455   <tr>
1456     <th>Commit</th>
1457     <th>Age</th>
1458     <th>Author</th>
1459     <th>Line</th>
1460     <th>Data</th>
1461   </tr>
1462 HTML
1463         my @line_class = (qw(light dark));
1464         my $line_class_len = scalar (@line_class);
1465         my $line_class_num = $#line_class;
1466         while (my $line = <$fd>) {
1467                 my $long_rev;
1468                 my $short_rev;
1469                 my $author;
1470                 my $time;
1471                 my $lineno;
1472                 my $data;
1473                 my $age;
1474                 my $age_str;
1475                 my $age_class;
1476
1477                 chomp $line;
1478                 $line_class_num = ($line_class_num + 1) % $line_class_len;
1479
1480                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
1481                         $long_rev = $1;
1482                         $author   = $2;
1483                         $time     = $3;
1484                         $lineno   = $4;
1485                         $data     = $5;
1486                 } else {
1487                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
1488                         next;
1489                 }
1490                 $short_rev  = substr ($long_rev, 0, 8);
1491                 $age        = time () - $time;
1492                 $age_str    = age_string ($age);
1493                 $age_str    =~ s/ /&nbsp;/g;
1494                 $age_class  = age_class($age);
1495                 $author     = esc_html ($author);
1496                 $author     =~ s/ /&nbsp;/g;
1497                 # escape tabs
1498                 while ((my $pos = index($data, "\t")) != -1) {
1499                         if (my $count = (8 - ($pos % 8))) {
1500                                 my $spaces = ' ' x $count;
1501                                 $data =~ s/\t/$spaces/;
1502                         }
1503                 }
1504                 $data = esc_html ($data);
1505
1506                 print <<HTML;
1507   <tr class="$line_class[$line_class_num]">
1508     <td class="sha1"><a href="$my_uri?${\esc_param ("p=$project;a=commit;h=$long_rev")}" class="text">$short_rev..</a></td>
1509     <td class="$age_class">$age_str</td>
1510     <td>$author</td>
1511     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
1512     <td class="pre">$data</td>
1513   </tr>
1514 HTML
1515         } # while (my $line = <$fd>)
1516         print "</table>\n\n";
1517         close $fd or print "Reading blob failed.\n";
1518         print "</div>";
1519         git_footer_html();
1520 }
1521
1522 sub git_tags {
1523         my $head = git_read_head($project);
1524         git_header_html();
1525         git_page_nav('','', $head,undef,$head);
1526         git_header_div('summary', $project);
1527
1528         my $taglist = git_read_refs("refs/tags");
1529         if (defined @$taglist) {
1530                 git_tags_body($taglist);
1531         }
1532         git_footer_html();
1533 }
1534
1535 sub git_heads {
1536         my $head = git_read_head($project);
1537         git_header_html();
1538         git_page_nav('','', $head,undef,$head);
1539         git_header_div('summary', $project);
1540
1541         my $taglist = git_read_refs("refs/heads");
1542         my $alternate = 0;
1543         if (defined @$taglist) {
1544                 git_heads_body($taglist, $head);
1545         }
1546         git_footer_html();
1547 }
1548
1549 sub git_get_hash_by_path {
1550         my $base = shift;
1551         my $path = shift || return undef;
1552
1553         my $tree = $base;
1554
1555         open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
1556                 or die_error(undef, "Open git-ls-tree failed.");
1557         my $line = <$fd>;
1558         close $fd or return undef;
1559
1560         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1561         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1562         return $3;
1563 }
1564
1565 sub mimetype_guess_file {
1566         my $filename = shift;
1567         my $mimemap = shift;
1568         -r $mimemap or return undef;
1569
1570         my %mimemap;
1571         open(MIME, $mimemap) or return undef;
1572         while (<MIME>) {
1573                 my ($mime, $exts) = split(/\t+/);
1574                 my @exts = split(/\s+/, $exts);
1575                 foreach my $ext (@exts) {
1576                         $mimemap{$ext} = $mime;
1577                 }
1578         }
1579         close(MIME);
1580
1581         $filename =~ /\.(.*?)$/;
1582         return $mimemap{$1};
1583 }
1584
1585 sub mimetype_guess {
1586         my $filename = shift;
1587         my $mime;
1588         $filename =~ /\./ or return undef;
1589
1590         if ($mimetypes_file) {
1591                 my $file = $mimetypes_file;
1592                 #$file =~ m#^/# or $file = "$projectroot/$path/$file";
1593                 $mime = mimetype_guess_file($filename, $file);
1594         }
1595         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1596         return $mime;
1597 }
1598
1599 sub git_blob_plain_mimetype {
1600         my $fd = shift;
1601         my $filename = shift;
1602
1603         if ($filename) {
1604                 my $mime = mimetype_guess($filename);
1605                 $mime and return $mime;
1606         }
1607
1608         # just in case
1609         return $default_blob_plain_mimetype unless $fd;
1610
1611         if (-T $fd) {
1612                 return 'text/plain' .
1613                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1614         } elsif (! $filename) {
1615                 return 'application/octet-stream';
1616         } elsif ($filename =~ m/\.png$/i) {
1617                 return 'image/png';
1618         } elsif ($filename =~ m/\.gif$/i) {
1619                 return 'image/gif';
1620         } elsif ($filename =~ m/\.jpe?g$/i) {
1621                 return 'image/jpeg';
1622         } else {
1623                 return 'application/octet-stream';
1624         }
1625 }
1626
1627 sub git_blob_plain {
1628         if (!defined $hash) {
1629                 if (defined $file_name) {
1630                         my $base = $hash_base || git_read_head($project);
1631                         $hash = git_get_hash_by_path($base, $file_name, "blob")
1632                                 or die_error(undef, "Error lookup file.");
1633                 } else {
1634                         die_error(undef, "No file name defined.");
1635                 }
1636         }
1637         my $type = shift;
1638         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
1639                 or die_error("Couldn't cat $file_name, $hash");
1640
1641         $type ||= git_blob_plain_mimetype($fd, $file_name);
1642
1643         # save as filename, even when no $file_name is given
1644         my $save_as = "$hash";
1645         if (defined $file_name) {
1646                 $save_as = $file_name;
1647         } elsif ($type =~ m/^text\//) {
1648                 $save_as .= '.txt';
1649         }
1650
1651         print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
1652         undef $/;
1653         binmode STDOUT, ':raw';
1654         print <$fd>;
1655         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
1656         $/ = "\n";
1657         close $fd;
1658 }
1659
1660 sub git_blob {
1661         if (!defined $hash) {
1662                 if (defined $file_name) {
1663                         my $base = $hash_base || git_read_head($project);
1664                         $hash = git_get_hash_by_path($base, $file_name, "blob")
1665                                 or die_error(undef, "Error lookup file.");
1666                 } else {
1667                         die_error(undef, "No file name defined.");
1668                 }
1669         }
1670         my $have_blame = git_get_project_config_bool ('blame');
1671         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
1672                 or die_error(undef, "Couldn't cat $file_name, $hash.");
1673         my $mimetype = git_blob_plain_mimetype($fd, $file_name);
1674         if ($mimetype !~ m/^text\//) {
1675                 close $fd;
1676                 return git_blob_plain($mimetype);
1677         }
1678         git_header_html();
1679         my $formats_nav = '';
1680         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1681                 if (defined $file_name) {
1682                         if ($have_blame) {
1683                                 $formats_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$hash;hb=$hash_base;f=$file_name")}, "blame") . " | ";
1684                         }
1685                         $formats_nav .=
1686                                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash;f=$file_name")}, "plain") .
1687                                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=HEAD;f=$file_name")}, "head");
1688                 } else {
1689                         $formats_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash")}, "plain");
1690                 }
1691                 git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1692                 git_header_div('commit', esc_html($co{'title'}), $hash_base);
1693         } else {
1694                 print "<div class=\"page_nav\">\n" .
1695                       "<br/><br/></div>\n" .
1696                       "<div class=\"title\">$hash</div>\n";
1697         }
1698         git_print_page_path($file_name, "blob");
1699         print "<div class=\"page_body\">\n";
1700         my $nr;
1701         while (my $line = <$fd>) {
1702                 chomp $line;
1703                 $nr++;
1704                 while ((my $pos = index($line, "\t")) != -1) {
1705                         if (my $count = (8 - ($pos % 8))) {
1706                                 my $spaces = ' ' x $count;
1707                                 $line =~ s/\t/$spaces/;
1708                         }
1709                 }
1710                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
1711         }
1712         close $fd or print "Reading blob failed.\n";
1713         print "</div>";
1714         git_footer_html();
1715 }
1716
1717 sub git_tree {
1718         if (!defined $hash) {
1719                 $hash = git_read_head($project);
1720                 if (defined $file_name) {
1721                         my $base = $hash_base || $hash;
1722                         $hash = git_get_hash_by_path($base, $file_name, "tree");
1723                 }
1724                 if (!defined $hash_base) {
1725                         $hash_base = $hash;
1726                 }
1727         }
1728         $/ = "\0";
1729         open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
1730                 or die_error(undef, "Open git-ls-tree failed.");
1731         my @entries = map { chomp; $_ } <$fd>;
1732         close $fd or die_error(undef, "Reading tree failed.");
1733         $/ = "\n";
1734
1735         my $refs = read_info_ref();
1736         my $ref = git_get_referencing($refs, $hash_base);
1737         git_header_html();
1738         my $base_key = "";
1739         my $base = "";
1740         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1741                 $base_key = ";hb=$hash_base";
1742                 git_page_nav('tree','', $hash_base);
1743                 git_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
1744         } else {
1745                 print "<div class=\"page_nav\">\n";
1746                 print "<br/><br/></div>\n";
1747                 print "<div class=\"title\">$hash</div>\n";
1748         }
1749         if (defined $file_name) {
1750                 $base = esc_html("$file_name/");
1751         }
1752         git_print_page_path($file_name);
1753         print "<div class=\"page_body\">\n";
1754         print "<table cellspacing=\"0\">\n";
1755         my $alternate = 0;
1756         foreach my $line (@entries) {
1757                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1758                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1759                 my $t_mode = $1;
1760                 my $t_type = $2;
1761                 my $t_hash = $3;
1762                 my $t_name = validate_input($4);
1763                 if ($alternate) {
1764                         print "<tr class=\"dark\">\n";
1765                 } else {
1766                         print "<tr class=\"light\">\n";
1767                 }
1768                 $alternate ^= 1;
1769                 print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
1770                 if ($t_type eq "blob") {
1771                         print "<td class=\"list\">" .
1772                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name"), -class => "list"}, esc_html($t_name)) .
1773                               "</td>\n" .
1774                               "<td class=\"link\">" .
1775                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name")}, "blob") .
1776 #                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$t_hash$base_key;f=$base$t_name")}, "blame") .
1777                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$t_hash;hb=$hash_base;f=$base$t_name")}, "history") .
1778                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$t_hash;f=$base$t_name")}, "raw") .
1779                               "</td>\n";
1780                 } elsif ($t_type eq "tree") {
1781                         print "<td class=\"list\">" .
1782                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, esc_html($t_name)) .
1783                               "</td>\n" .
1784                               "<td class=\"link\">" .
1785                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, "tree") .
1786                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash_base;f=$base$t_name")}, "history") .
1787                               "</td>\n";
1788                 }
1789                 print "</tr>\n";
1790         }
1791         print "</table>\n" .
1792               "</div>";
1793         git_footer_html();
1794 }
1795
1796 sub git_rss {
1797         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
1798         open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_read_head($project)
1799                 or die_error(undef, "Open git-rev-list failed.");
1800         my @revlist = map { chomp; $_ } <$fd>;
1801         close $fd or die_error(undef, "Reading rev-list failed.");
1802         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1803         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1804               "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
1805         print "<channel>\n";
1806         print "<title>$project</title>\n".
1807               "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
1808               "<description>$project log</description>\n".
1809               "<language>en</language>\n";
1810
1811         for (my $i = 0; $i <= $#revlist; $i++) {
1812                 my $commit = $revlist[$i];
1813                 my %co = git_read_commit($commit);
1814                 # we read 150, we always show 30 and the ones more recent than 48 hours
1815                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
1816                         last;
1817                 }
1818                 my %cd = date_str($co{'committer_epoch'});
1819                 open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
1820                 my @difftree = map { chomp; $_ } <$fd>;
1821                 close $fd or next;
1822                 print "<item>\n" .
1823                       "<title>" .
1824                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
1825                       "</title>\n" .
1826                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
1827                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
1828                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
1829                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
1830                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
1831                       "<content:encoded>" .
1832                       "<![CDATA[\n";
1833                 my $comment = $co{'comment'};
1834                 foreach my $line (@$comment) {
1835                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
1836                         print "$line<br/>\n";
1837                 }
1838                 print "<br/>\n";
1839                 foreach my $line (@difftree) {
1840                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
1841                                 next;
1842                         }
1843                         my $file = validate_input(unquote($7));
1844                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
1845                         print "$file<br/>\n";
1846                 }
1847                 print "]]>\n" .
1848                       "</content:encoded>\n" .
1849                       "</item>\n";
1850         }
1851         print "</channel></rss>";
1852 }
1853
1854 sub git_opml {
1855         my @list = git_read_projects();
1856
1857         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1858         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1859               "<opml version=\"1.0\">\n".
1860               "<head>".
1861               "  <title>$site_name Git OPML Export</title>\n".
1862               "</head>\n".
1863               "<body>\n".
1864               "<outline text=\"git RSS feeds\">\n";
1865
1866         foreach my $pr (@list) {
1867                 my %proj = %$pr;
1868                 my $head = git_read_head($proj{'path'});
1869                 if (!defined $head) {
1870                         next;
1871                 }
1872                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
1873                 my %co = git_read_commit($head);
1874                 if (!%co) {
1875                         next;
1876                 }
1877
1878                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
1879                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
1880                 my $html = "$my_url?p=$proj{'path'};a=summary";
1881                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
1882         }
1883         print "</outline>\n".
1884               "</body>\n".
1885               "</opml>\n";
1886 }
1887
1888 sub git_log {
1889         my $head = git_read_head($project);
1890         if (!defined $hash) {
1891                 $hash = $head;
1892         }
1893         if (!defined $page) {
1894                 $page = 0;
1895         }
1896         my $refs = read_info_ref();
1897
1898         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
1899         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
1900                 or die_error(undef, "Open git-rev-list failed.");
1901         my @revlist = map { chomp; $_ } <$fd>;
1902         close $fd;
1903
1904         my $paging_nav = git_get_paging_nav('log', $hash, $head, $page, $#revlist);
1905
1906         git_header_html();
1907         git_page_nav('log','', $hash,undef,undef, $paging_nav);
1908
1909         if (!@revlist) {
1910                 my %co = git_read_commit($hash);
1911
1912                 git_header_div('summary', $project);
1913                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
1914         }
1915         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
1916                 my $commit = $revlist[$i];
1917                 my $ref = git_get_referencing($refs, $commit);
1918                 my %co = git_read_commit($commit);
1919                 next if !%co;
1920                 my %ad = date_str($co{'author_epoch'});
1921                 git_header_div('commit',
1922                                                                          "<span class=\"age\">$co{'age_string'}</span>" .
1923                                                                          esc_html($co{'title'}) . $ref,
1924                                                                          $commit);
1925                 print "<div class=\"title_text\">\n" .
1926                       "<div class=\"log_link\">\n" .
1927                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1928                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1929                       "<br/>\n" .
1930                       "</div>\n" .
1931                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
1932                       "</div>\n" .
1933                       "<div class=\"log_body\">\n";
1934                 my $comment = $co{'comment'};
1935                 my $empty = 0;
1936                 foreach my $line (@$comment) {
1937                         if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1938                                 next;
1939                         }
1940                         if ($line eq "") {
1941                                 if ($empty) {
1942                                         next;
1943                                 }
1944                                 $empty = 1;
1945                         } else {
1946                                 $empty = 0;
1947                         }
1948                         print format_log_line_html($line) . "<br/>\n";
1949                 }
1950                 if (!$empty) {
1951                         print "<br/>\n";
1952                 }
1953                 print "</div>\n";
1954         }
1955         git_footer_html();
1956 }
1957
1958 sub git_commit {
1959         my %co = git_read_commit($hash);
1960         if (!%co) {
1961                 die_error(undef, "Unknown commit object.");
1962         }
1963         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
1964         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1965
1966         my $parent = $co{'parent'};
1967         if (!defined $parent) {
1968                 $parent = "--root";
1969         }
1970         open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
1971                 or die_error(undef, "Open git-diff-tree failed.");
1972         my @difftree = map { chomp; $_ } <$fd>;
1973         close $fd or die_error(undef, "Reading git-diff-tree failed.");
1974
1975         # non-textual hash id's can be cached
1976         my $expires;
1977         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
1978                 $expires = "+1d";
1979         }
1980         my $refs = read_info_ref();
1981         my $ref = git_get_referencing($refs, $co{'id'});
1982         my $formats_nav = '';
1983         if (defined $file_name && defined $co{'parent'}) {
1984                 my $parent = $co{'parent'};
1985                 $formats_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;hb=$parent;f=$file_name")}, "blame");
1986         }
1987         git_header_html(undef, $expires);
1988         git_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
1989                                                          $hash, $co{'tree'}, $hash,
1990                                                          $formats_nav);
1991
1992         if (defined $co{'parent'}) {
1993                 git_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
1994         } else {
1995                 git_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
1996         }
1997         print "<div class=\"title_text\">\n" .
1998               "<table cellspacing=\"0\">\n";
1999         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2000               "<tr>" .
2001               "<td></td><td> $ad{'rfc2822'}";
2002         if ($ad{'hour_local'} < 6) {
2003                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2004         } else {
2005                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2006         }
2007         print "</td>" .
2008               "</tr>\n";
2009         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2010         print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
2011         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2012         print "<tr>" .
2013               "<td>tree</td>" .
2014               "<td class=\"sha1\">" .
2015               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), class => "list"}, $co{'tree'}) .
2016               "</td>" .
2017               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
2018               "</td>" .
2019               "</tr>\n";
2020         my $parents = $co{'parents'};
2021         foreach my $par (@$parents) {
2022                 print "<tr>" .
2023                       "<td>parent</td>" .
2024                       "<td class=\"sha1\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par"), class => "list"}, $par) . "</td>" .
2025                       "<td class=\"link\">" .
2026                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par")}, "commit") .
2027                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash;hp=$par")}, "commitdiff") .
2028                       "</td>" .
2029                       "</tr>\n";
2030         }
2031         print "</table>".
2032               "</div>\n";
2033         print "<div class=\"page_body\">\n";
2034         my $comment = $co{'comment'};
2035         my $empty = 0;
2036         my $signed = 0;
2037         foreach my $line (@$comment) {
2038                 # print only one empty line
2039                 if ($line eq "") {
2040                         if ($empty || $signed) {
2041                                 next;
2042                         }
2043                         $empty = 1;
2044                 } else {
2045                         $empty = 0;
2046                 }
2047                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2048                         $signed = 1;
2049                         print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2050                 } else {
2051                         $signed = 0;
2052                         print format_log_line_html($line) . "<br/>\n";
2053                 }
2054         }
2055         print "</div>\n";
2056         print "<div class=\"list_head\">\n";
2057         if ($#difftree > 10) {
2058                 print(($#difftree + 1) . " files changed:\n");
2059         }
2060         print "</div>\n";
2061         print "<table class=\"diff_tree\">\n";
2062         my $alternate = 0;
2063         foreach my $line (@difftree) {
2064                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2065                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2066                 if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
2067                         next;
2068                 }
2069                 my $from_mode = $1;
2070                 my $to_mode = $2;
2071                 my $from_id = $3;
2072                 my $to_id = $4;
2073                 my $status = $5;
2074                 my $similarity = $6;
2075                 my $file = validate_input(unquote($7));
2076                 if ($alternate) {
2077                         print "<tr class=\"dark\">\n";
2078                 } else {
2079                         print "<tr class=\"light\">\n";
2080                 }
2081                 $alternate ^= 1;
2082                 if ($status eq "A") {
2083                         my $mode_chng = "";
2084                         if (S_ISREG(oct $to_mode)) {
2085                                 $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
2086                         }
2087                         print "<td>" .
2088                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
2089                               "<td><span class=\"file_status new\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
2090                               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob") . "</td>\n";
2091                 } elsif ($status eq "D") {
2092                         print "<td>" .
2093                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
2094                               "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
2095                               "<td class=\"link\">" .
2096                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, "blob") .
2097                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") .
2098                               "</td>\n"
2099                 } elsif ($status eq "M" || $status eq "T") {
2100                         my $mode_chnge = "";
2101                         if ($from_mode != $to_mode) {
2102                                 $mode_chnge = " <span class=\"file_status mode_chnge\">[changed";
2103                                 if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
2104                                         $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
2105                                 }
2106                                 if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
2107                                         if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
2108                                                 $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
2109                                         } elsif (S_ISREG($to_mode)) {
2110                                                 $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
2111                                         }
2112                                 }
2113                                 $mode_chnge .= "]</span>\n";
2114                         }
2115                         print "<td>";
2116                         if ($to_id ne $from_id) {
2117                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file));
2118                         } else {
2119                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file));
2120                         }
2121                         print "</td>\n" .
2122                               "<td>$mode_chnge</td>\n" .
2123                               "<td class=\"link\">";
2124                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob");
2125                         if ($to_id ne $from_id) {
2126                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file")}, "diff");
2127                         }
2128                         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") . "\n";
2129                         print "</td>\n";
2130                 } elsif ($status eq "R") {
2131                         my ($from_file, $to_file) = split "\t", $file;
2132                         my $mode_chng = "";
2133                         if ($from_mode != $to_mode) {
2134                                 $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
2135                         }
2136                         print "<td>" .
2137                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file"), -class => "list"}, esc_html($to_file)) . "</td>\n" .
2138                               "<td><span class=\"file_status moved\">[moved from " .
2139                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$from_file"), -class => "list"}, esc_html($from_file)) .
2140                               " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
2141                               "<td class=\"link\">" .
2142                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file")}, "blob");
2143                         if ($to_id ne $from_id) {
2144                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file")}, "diff");
2145                         }
2146                         print "</td>\n";
2147                 }
2148                 print "</tr>\n";
2149         }
2150         print "</table>\n";
2151         git_footer_html();
2152 }
2153
2154 sub git_blobdiff {
2155         mkdir($git_temp, 0700);
2156         git_header_html();
2157         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
2158                 my $formats_nav =
2159                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
2160                 git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2161                 git_header_div('commit', esc_html($co{'title'}), $hash_base);
2162         } else {
2163                 print "<div class=\"page_nav\">\n" .
2164                       "<br/><br/></div>\n" .
2165                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
2166         }
2167         git_print_page_path($file_name, "blob");
2168         print "<div class=\"page_body\">\n" .
2169               "<div class=\"diff_info\">blob:" .
2170               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name")}, $hash_parent) .
2171               " -> blob:" .
2172               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, $hash) .
2173               "</div>\n";
2174         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2175         print "</div>";
2176         git_footer_html();
2177 }
2178
2179 sub git_blobdiff_plain {
2180         mkdir($git_temp, 0700);
2181         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2182         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2183 }
2184
2185 sub git_commitdiff {
2186         mkdir($git_temp, 0700);
2187         my %co = git_read_commit($hash);
2188         if (!%co) {
2189                 die_error(undef, "Unknown commit object.");
2190         }
2191         if (!defined $hash_parent) {
2192                 $hash_parent = $co{'parent'};
2193         }
2194         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2195                 or die_error(undef, "Open git-diff-tree failed.");
2196         my @difftree = map { chomp; $_ } <$fd>;
2197         close $fd or die_error(undef, "Reading diff-tree failed.");
2198
2199         # non-textual hash id's can be cached
2200         my $expires;
2201         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2202                 $expires = "+1d";
2203         }
2204         my $refs = read_info_ref();
2205         my $ref = git_get_referencing($refs, $co{'id'});
2206         my $formats_nav =
2207                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
2208         git_header_html(undef, $expires);
2209         git_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
2210         git_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
2211         print "<div class=\"page_body\">\n";
2212         my $comment = $co{'comment'};
2213         my $empty = 0;
2214         my $signed = 0;
2215         my @log = @$comment;
2216         # remove first and empty lines after that
2217         shift @log;
2218         while (defined $log[0] && $log[0] eq "") {
2219                 shift @log;
2220         }
2221         foreach my $line (@log) {
2222                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2223                         next;
2224                 }
2225                 if ($line eq "") {
2226                         if ($empty) {
2227                                 next;
2228                         }
2229                         $empty = 1;
2230                 } else {
2231                         $empty = 0;
2232                 }
2233                 print format_log_line_html($line) . "<br/>\n";
2234         }
2235         print "<br/>\n";
2236         foreach my $line (@difftree) {
2237                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2238                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2239                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2240                 my $from_mode = $1;
2241                 my $to_mode = $2;
2242                 my $from_id = $3;
2243                 my $to_id = $4;
2244                 my $status = $5;
2245                 my $file = validate_input(unquote($6));
2246                 if ($status eq "A") {
2247                         print "<div class=\"diff_info\">" . file_type($to_mode) . ":" .
2248                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id) . "(new)" .
2249                               "</div>\n";
2250                         git_diff_print(undef, "/dev/null", $to_id, "b/$file");
2251                 } elsif ($status eq "D") {
2252                         print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
2253                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) . "(deleted)" .
2254                               "</div>\n";
2255                         git_diff_print($from_id, "a/$file", undef, "/dev/null");
2256                 } elsif ($status eq "M") {
2257                         if ($from_id ne $to_id) {
2258                                 print "<div class=\"diff_info\">" .
2259                                       file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) .
2260                                       " -> " .
2261                                       file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id);
2262                                 print "</div>\n";
2263                                 git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
2264                         }
2265                 }
2266         }
2267         print "<br/>\n" .
2268               "</div>";
2269         git_footer_html();
2270 }
2271
2272 sub git_commitdiff_plain {
2273         mkdir($git_temp, 0700);
2274         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2275                 or die_error(undef, "Open git-diff-tree failed.");
2276         my @difftree = map { chomp; $_ } <$fd>;
2277         close $fd or die_error(undef, "Reading diff-tree failed.");
2278
2279         # try to figure out the next tag after this commit
2280         my $tagname;
2281         my $refs = read_info_ref("tags");
2282         open $fd, "-|", $GIT, "rev-list", "HEAD";
2283         my @commits = map { chomp; $_ } <$fd>;
2284         close $fd;
2285         foreach my $commit (@commits) {
2286                 if (defined $refs->{$commit}) {
2287                         $tagname = $refs->{$commit}
2288                 }
2289                 if ($commit eq $hash) {
2290                         last;
2291                 }
2292         }
2293
2294         print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2295         my %co = git_read_commit($hash);
2296         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
2297         my $comment = $co{'comment'};
2298         print "From: $co{'author'}\n" .
2299               "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2300               "Subject: $co{'title'}\n";
2301         if (defined $tagname) {
2302                 print "X-Git-Tag: $tagname\n";
2303         }
2304         print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2305               "\n";
2306
2307         foreach my $line (@$comment) {;
2308                 print "$line\n";
2309         }
2310         print "---\n\n";
2311
2312         foreach my $line (@difftree) {
2313                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2314                 my $from_id = $3;
2315                 my $to_id = $4;
2316                 my $status = $5;
2317                 my $file = $6;
2318                 if ($status eq "A") {
2319                         git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2320                 } elsif ($status eq "D") {
2321                         git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2322                 } elsif ($status eq "M") {
2323                         git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2324                 }
2325         }
2326 }
2327
2328 sub git_history {
2329         if (!defined $hash_base) {
2330                 $hash_base = git_read_head($project);
2331         }
2332         my $ftype;
2333         my %co = git_read_commit($hash_base);
2334         if (!%co) {
2335                 die_error(undef, "Unknown commit object.");
2336         }
2337         my $refs = read_info_ref();
2338         git_header_html();
2339         git_page_nav('','', $hash_base,$co{'tree'},$hash_base);
2340         git_header_div('commit', esc_html($co{'title'}), $hash_base);
2341         if (!defined $hash && defined $file_name) {
2342                 $hash = git_get_hash_by_path($hash_base, $file_name);
2343         }
2344         if (defined $hash) {
2345                 $ftype = git_get_type($hash);
2346         }
2347         git_print_page_path($file_name, $ftype);
2348
2349         open my $fd, "-|",
2350                 $GIT, "rev-list", "--full-history", $hash_base, "--", "\'$file_name\'";
2351         print "<table cellspacing=\"0\">\n";
2352         my $alternate = 0;
2353         while (my $line = <$fd>) {
2354                 if ($line =~ m/^([0-9a-fA-F]{40})/){
2355                         my $commit = $1;
2356                         my %co = git_read_commit($commit);
2357                         if (!%co) {
2358                                 next;
2359                         }
2360                         my $ref = git_get_referencing($refs, $commit);
2361                         if ($alternate) {
2362                                 print "<tr class=\"dark\">\n";
2363                         } else {
2364                                 print "<tr class=\"light\">\n";
2365                         }
2366                         $alternate ^= 1;
2367                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2368                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2369                               "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"}, "<b>" .
2370                               esc_html(chop_str($co{'title'}, 50)) . "$ref</b>") . "</td>\n" .
2371                               "<td class=\"link\">" .
2372                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2373                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2374                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=$commit;f=$file_name")}, "blob");
2375                         my $blob = git_get_hash_by_path($hash_base, $file_name);
2376                         my $blob_parent = git_get_hash_by_path($commit, $file_name);
2377                         if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
2378                                 print " | " .
2379                                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$blob;hp=$blob_parent;hb=$commit;f=$file_name")},
2380                                 "diff to current");
2381                         }
2382                         print "</td>\n" .
2383                               "</tr>\n";
2384                 }
2385         }
2386         print "</table>\n";
2387         close $fd;
2388         git_footer_html();
2389 }
2390
2391 sub git_search {
2392         if (!defined $searchtext) {
2393                 die_error("", "Text field empty.");
2394         }
2395         if (!defined $hash) {
2396                 $hash = git_read_head($project);
2397         }
2398         my %co = git_read_commit($hash);
2399         if (!%co) {
2400                 die_error(undef, "Unknown commit object.");
2401         }
2402         # pickaxe may take all resources of your box and run for several minutes
2403         # with every query - so decide by yourself how public you make this feature :)
2404         my $commit_search = 1;
2405         my $author_search = 0;
2406         my $committer_search = 0;
2407         my $pickaxe_search = 0;
2408         if ($searchtext =~ s/^author\\://i) {
2409                 $author_search = 1;
2410         } elsif ($searchtext =~ s/^committer\\://i) {
2411                 $committer_search = 1;
2412         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2413                 $commit_search = 0;
2414                 $pickaxe_search = 1;
2415         }
2416         git_header_html();
2417         git_page_nav('','', $hash,$co{'tree'},$hash);
2418         git_header_div('commit', esc_html($co{'title'}), $hash);
2419
2420         print "<table cellspacing=\"0\">\n";
2421         my $alternate = 0;
2422         if ($commit_search) {
2423                 $/ = "\0";
2424                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
2425                 while (my $commit_text = <$fd>) {
2426                         if (!grep m/$searchtext/i, $commit_text) {
2427                                 next;
2428                         }
2429                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2430                                 next;
2431                         }
2432                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2433                                 next;
2434                         }
2435                         my @commit_lines = split "\n", $commit_text;
2436                         my %co = git_read_commit(undef, \@commit_lines);
2437                         if (!%co) {
2438                                 next;
2439                         }
2440                         if ($alternate) {
2441                                 print "<tr class=\"dark\">\n";
2442                         } else {
2443                                 print "<tr class=\"light\">\n";
2444                         }
2445                         $alternate ^= 1;
2446                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2447                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2448                               "<td>" .
2449                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2450                         my $comment = $co{'comment'};
2451                         foreach my $line (@$comment) {
2452                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2453                                         my $lead = esc_html($1) || "";
2454                                         $lead = chop_str($lead, 30, 10);
2455                                         my $match = esc_html($2) || "";
2456                                         my $trail = esc_html($3) || "";
2457                                         $trail = chop_str($trail, 30, 10);
2458                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
2459                                         print chop_str($text, 80, 5) . "<br/>\n";
2460                                 }
2461                         }
2462                         print "</td>\n" .
2463                               "<td class=\"link\">" .
2464                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2465                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2466                         print "</td>\n" .
2467                               "</tr>\n";
2468                 }
2469                 close $fd;
2470         }
2471
2472         if ($pickaxe_search) {
2473                 $/ = "\n";
2474                 open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
2475                 undef %co;
2476                 my @files;
2477                 while (my $line = <$fd>) {
2478                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2479                                 my %set;
2480                                 $set{'file'} = $6;
2481                                 $set{'from_id'} = $3;
2482                                 $set{'to_id'} = $4;
2483                                 $set{'id'} = $set{'to_id'};
2484                                 if ($set{'id'} =~ m/0{40}/) {
2485                                         $set{'id'} = $set{'from_id'};
2486                                 }
2487                                 if ($set{'id'} =~ m/0{40}/) {
2488                                         next;
2489                                 }
2490                                 push @files, \%set;
2491                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2492                                 if (%co) {
2493                                         if ($alternate) {
2494                                                 print "<tr class=\"dark\">\n";
2495                                         } else {
2496                                                 print "<tr class=\"light\">\n";
2497                                         }
2498                                         $alternate ^= 1;
2499                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2500                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2501                                               "<td>" .
2502                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" .
2503                                               esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2504                                         while (my $setref = shift @files) {
2505                                                 my %set = %$setref;
2506                                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$set{'id'};hb=$co{'id'};f=$set{'file'}"), class => "list"},
2507                                                       "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
2508                                                       "<br/>\n";
2509                                         }
2510                                         print "</td>\n" .
2511                                               "<td class=\"link\">" .
2512                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2513                                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2514                                         print "</td>\n" .
2515                                               "</tr>\n";
2516                                 }
2517                                 %co = git_read_commit($1);
2518                         }
2519                 }
2520                 close $fd;
2521         }
2522         print "</table>\n";
2523         git_footer_html();
2524 }
2525
2526 sub git_shortlog {
2527         my $head = git_read_head($project);
2528         if (!defined $hash) {
2529                 $hash = $head;
2530         }
2531         if (!defined $page) {
2532                 $page = 0;
2533         }
2534         my $refs = read_info_ref();
2535
2536         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2537         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2538                 or die_error(undef, "Open git-rev-list failed.");
2539         my @revlist = map { chomp; $_ } <$fd>;
2540         close $fd;
2541
2542         my $paging_nav = git_get_paging_nav('shortlog', $hash, $head, $page, $#revlist);
2543         my $next_link = '';
2544         if ($#revlist >= (100 * ($page+1)-1)) {
2545                 $next_link =
2546                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)),
2547                                  -title => "Alt-n"}, "next");
2548         }
2549
2550
2551         git_header_html();
2552         git_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
2553         git_header_div('summary', $project);
2554
2555         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
2556
2557         git_footer_html();
2558 }