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_get_paging_nav {
 424         my ($action, $hash, $head, $page, $nrevs) = @_;
 425         my $paging_nav;
 426
 427
 428         if ($hash ne $head || $page) {
 429                 $paging_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$action")}, "HEAD");
 430         } else {
 431                 $paging_nav .= "HEAD";
 432         }
 433
 434         if ($page > 0) {
 435                 $paging_nav .= " &sdot; " .
 436                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$action;h=$hash;pg=" . ($page-1)),
 437                                                          -accesskey => "p", -title => "Alt-p"}, "prev");
 438         } else {
 439                 $paging_nav .= " &sdot; prev";
 440         }
 441
 442         if ($nrevs >= (100 * ($page+1)-1)) {
 443                 $paging_nav .= " &sdot; " .
 444                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$action;h=$hash;pg=" . ($page+1)),
 445                                                          -accesskey => "n", -title => "Alt-n"}, "next");
 446         } else {
 447                 $paging_nav .= " &sdot; next";
 448         }
 449
 450         return $paging_nav;
 451 }
 452
 453 sub git_get_type {
 454         my $hash = shift;
 455
 456         open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 457         my $type = <$fd>;
 458         close $fd or return;
 459         chomp $type;
 460         return $type;
 461 }
 462
 463 sub git_read_head {
 464         my $project = shift;
 465         my $oENV = $ENV{'GIT_DIR'};
 466         my $retval = undef;
 467         $ENV{'GIT_DIR'} = "$projectroot/$project";
 468         if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 469                 my $head = <$fd>;
 470                 close $fd;
 471                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 472                         $retval = $1;
 473                 }
 474         }
 475         if (defined $oENV) {
 476                 $ENV{'GIT_DIR'} = $oENV;
 477         }
 478         return $retval;
 479 }
 480
 481 sub git_read_hash {
 482         my $path = shift;
 483
 484         open my $fd, "$projectroot/$path" or return undef;
 485         my $head = <$fd>;
 486         close $fd;
 487         chomp $head;
 488         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 489                 return $head;
 490         }
 491 }
 492
 493 sub git_read_description {
 494         my $path = shift;
 495
 496         open my $fd, "$projectroot/$path/description" or return undef;
 497         my $descr = <$fd>;
 498         close $fd;
 499         chomp $descr;
 500         return $descr;
 501 }
 502
 503 sub git_read_tag {
 504         my $tag_id = shift;
 505         my %tag;
 506         my @comment;
 507
 508         open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 509         $tag{'id'} = $tag_id;
 510         while (my $line = <$fd>) {
 511                 chomp $line;
 512                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 513                         $tag{'object'} = $1;
 514                 } elsif ($line =~ m/^type (.+)$/) {
 515                         $tag{'type'} = $1;
 516                 } elsif ($line =~ m/^tag (.+)$/) {
 517                         $tag{'name'} = $1;
 518                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 519                         $tag{'author'} = $1;
 520                         $tag{'epoch'} = $2;
 521                         $tag{'tz'} = $3;
 522                 } elsif ($line =~ m/--BEGIN/) {
 523                         push @comment, $line;
 524                         last;
 525                 } elsif ($line eq "") {
 526                         last;
 527                 }
 528         }
 529         push @comment, <$fd>;
 530         $tag{'comment'} = \@comment;
 531         close $fd or return;
 532         if (!defined $tag{'name'}) {
 533                 return
 534         };
 535         return %tag
 536 }
 537
 538 sub age_string {
 539         my $age = shift;
 540         my $age_str;
 541
 542         if ($age > 60*60*24*365*2) {
 543                 $age_str = (int $age/60/60/24/365);
 544                 $age_str .= " years ago";
 545         } elsif ($age > 60*60*24*(365/12)*2) {
 546                 $age_str = int $age/60/60/24/(365/12);
 547                 $age_str .= " months ago";
 548         } elsif ($age > 60*60*24*7*2) {
 549                 $age_str = int $age/60/60/24/7;
 550                 $age_str .= " weeks ago";
 551         } elsif ($age > 60*60*24*2) {
 552                 $age_str = int $age/60/60/24;
 553                 $age_str .= " days ago";
 554         } elsif ($age > 60*60*2) {
 555                 $age_str = int $age/60/60;
 556                 $age_str .= " hours ago";
 557         } elsif ($age > 60*2) {
 558                 $age_str = int $age/60;
 559                 $age_str .= " min ago";
 560         } elsif ($age > 2) {
 561                 $age_str = int $age;
 562                 $age_str .= " sec ago";
 563         } else {
 564                 $age_str .= " right now";
 565         }
 566         return $age_str;
 567 }
 568
 569 sub git_read_commit {
 570         my $commit_id = shift;
 571         my $commit_text = shift;
 572
 573         my @commit_lines;
 574         my %co;
 575
 576         if (defined $commit_text) {
 577                 @commit_lines = @$commit_text;
 578         } else {
 579                 $/ = "\0";
 580                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
 581                 @commit_lines = split '\n', <$fd>;
 582                 close $fd or return;
 583                 $/ = "\n";
 584                 pop @commit_lines;
 585         }
 586         my $header = shift @commit_lines;
 587         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 588                 return;
 589         }
 590         ($co{'id'}, my @parents) = split ' ', $header;
 591         $co{'parents'} = \@parents;
 592         $co{'parent'} = $parents[0];
 593         while (my $line = shift @commit_lines) {
 594                 last if $line eq "\n";
 595                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 596                         $co{'tree'} = $1;
 597                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 598                         $co{'author'} = $1;
 599                         $co{'author_epoch'} = $2;
 600                         $co{'author_tz'} = $3;
 601                         if ($co{'author'} =~ m/^([^<]+) </) {
 602                                 $co{'author_name'} = $1;
 603                         } else {
 604                                 $co{'author_name'} = $co{'author'};
 605                         }
 606                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 607                         $co{'committer'} = $1;
 608                         $co{'committer_epoch'} = $2;
 609                         $co{'committer_tz'} = $3;
 610                         $co{'committer_name'} = $co{'committer'};
 611                         $co{'committer_name'} =~ s/ <.*//;
 612                 }
 613         }
 614         if (!defined $co{'tree'}) {
 615                 return;
 616         };
 617
 618         foreach my $title (@commit_lines) {
 619                 $title =~ s/^    //;
 620                 if ($title ne "") {
 621                         $co{'title'} = chop_str($title, 80, 5);
 622                         # remove leading stuff of merges to make the interesting part visible
 623                         if (length($title) > 50) {
 624                                 $title =~ s/^Automatic //;
 625                                 $title =~ s/^merge (of|with) /Merge ... /i;
 626                                 if (length($title) > 50) {
 627                                         $title =~ s/(http|rsync):\/\///;
 628                                 }
 629                                 if (length($title) > 50) {
 630                                         $title =~ s/(master|www|rsync)\.//;
 631                                 }
 632                                 if (length($title) > 50) {
 633                                         $title =~ s/kernel.org:?//;
 634                                 }
 635                                 if (length($title) > 50) {
 636                                         $title =~ s/\/pub\/scm//;
 637                                 }
 638                         }
 639                         $co{'title_short'} = chop_str($title, 50, 5);
 640                         last;
 641                 }
 642         }
 643         # remove added spaces
 644         foreach my $line (@commit_lines) {
 645                 $line =~ s/^    //;
 646         }
 647         $co{'comment'} = \@commit_lines;
 648
 649         my $age = time - $co{'committer_epoch'};
 650         $co{'age'} = $age;
 651         $co{'age_string'} = age_string($age);
 652         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 653         if ($age > 60*60*24*7*2) {
 654                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 655                 $co{'age_string_age'} = $co{'age_string'};
 656         } else {
 657                 $co{'age_string_date'} = $co{'age_string'};
 658                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 659         }
 660         return %co;
 661 }
 662
 663 sub git_diff_print {
 664         my $from = shift;
 665         my $from_name = shift;
 666         my $to = shift;
 667         my $to_name = shift;
 668         my $format = shift || "html";
 669
 670         my $from_tmp = "/dev/null";
 671         my $to_tmp = "/dev/null";
 672         my $pid = $$;
 673
 674         # create tmp from-file
 675         if (defined $from) {
 676                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
 677                 open my $fd2, "> $from_tmp";
 678                 open my $fd, "-|", $GIT, "cat-file", "blob", $from;
 679                 my @file = <$fd>;
 680                 print $fd2 @file;
 681                 close $fd2;
 682                 close $fd;
 683         }
 684
 685         # create tmp to-file
 686         if (defined $to) {
 687                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
 688                 open my $fd2, "> $to_tmp";
 689                 open my $fd, "-|", $GIT, "cat-file", "blob", $to;
 690                 my @file = <$fd>;
 691                 print $fd2 @file;
 692                 close $fd2;
 693                 close $fd;
 694         }
 695
 696         open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
 697         if ($format eq "plain") {
 698                 undef $/;
 699                 print <$fd>;
 700                 $/ = "\n";
 701         } else {
 702                 while (my $line = <$fd>) {
 703                         chomp $line;
 704                         my $char = substr($line, 0, 1);
 705                         my $diff_class = "";
 706                         if ($char eq '+') {
 707                                 $diff_class = " add";
 708                         } elsif ($char eq "-") {
 709                                 $diff_class = " rem";
 710                         } elsif ($char eq "@") {
 711                                 $diff_class = " chunk_header";
 712                         } elsif ($char eq "\\") {
 713                                 # skip errors
 714                                 next;
 715                         }
 716                         while ((my $pos = index($line, "\t")) != -1) {
 717                                 if (my $count = (8 - (($pos-1) % 8))) {
 718                                         my $spaces = ' ' x $count;
 719                                         $line =~ s/\t/$spaces/;
 720                                 }
 721                         }
 722                         print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 723                 }
 724         }
 725         close $fd;
 726
 727         if (defined $from) {
 728                 unlink($from_tmp);
 729         }
 730         if (defined $to) {
 731                 unlink($to_tmp);
 732         }
 733 }
 734
 735 sub mode_str {
 736         my $mode = oct shift;
 737
 738         if (S_ISDIR($mode & S_IFMT)) {
 739                 return 'drwxr-xr-x';
 740         } elsif (S_ISLNK($mode)) {
 741                 return 'lrwxrwxrwx';
 742         } elsif (S_ISREG($mode)) {
 743                 # git cares only about the executable bit
 744                 if ($mode & S_IXUSR) {
 745                         return '-rwxr-xr-x';
 746                 } else {
 747                         return '-rw-r--r--';
 748                 };
 749         } else {
 750                 return '----------';
 751         }
 752 }
 753
 754 sub chop_str {
 755         my $str = shift;
 756         my $len = shift;
 757         my $add_len = shift || 10;
 758
 759         # allow only $len chars, but don't cut a word if it would fit in $add_len
 760         # if it doesn't fit, cut it if it's still longer than the dots we would add
 761         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 762         my $body = $1;
 763         my $tail = $2;
 764         if (length($tail) > 4) {
 765                 $tail = " ...";
 766         }
 767         return "$body$tail";
 768 }
 769
 770 sub file_type {
 771         my $mode = oct shift;
 772
 773         if (S_ISDIR($mode & S_IFMT)) {
 774                 return "directory";
 775         } elsif (S_ISLNK($mode)) {
 776                 return "symlink";
 777         } elsif (S_ISREG($mode)) {
 778                 return "file";
 779         } else {
 780                 return "unknown";
 781         }
 782 }
 783
 784 sub format_log_line_html {
 785         my $line = shift;
 786
 787         $line = esc_html($line);
 788         $line =~ s/ /&nbsp;/g;
 789         if ($line =~ m/([0-9a-fA-F]{40})/) {
 790                 my $hash_text = $1;
 791                 if (git_get_type($hash_text) eq "commit") {
 792                         my $link = $cgi->a({-class => "text", -href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_text")}, $hash_text);
 793                         $line =~ s/$hash_text/$link/;
 794                 }
 795         }
 796         return $line;
 797 }
 798
 799 sub date_str {
 800         my $epoch = shift;
 801         my $tz = shift || "-0000";
 802
 803         my %date;
 804         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 805         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 806         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 807         $date{'hour'} = $hour;
 808         $date{'minute'} = $min;
 809         $date{'mday'} = $mday;
 810         $date{'day'} = $days[$wday];
 811         $date{'month'} = $months[$mon];
 812         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 813         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 814
 815         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 816         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 817         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 818         $date{'hour_local'} = $hour;
 819         $date{'minute_local'} = $min;
 820         $date{'tz_local'} = $tz;
 821         return %date;
 822 }
 823
 824 # git-logo (cached in browser for one day)
 825 sub git_logo {
 826         binmode STDOUT, ':raw';
 827         print $cgi->header(-type => 'image/png', -expires => '+1d');
 828         # cat git-logo.png | hexdump -e '16/1 " %02x"  "\n"' | sed 's/ /\\x/g'
 829         print   "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
 830                 "\x00\x00\x00\x48\x00\x00\x00\x1b\x04\x03\x00\x00\x00\x2d\xd9\xd4" .
 831                 "\x2d\x00\x00\x00\x18\x50\x4c\x54\x45\xff\xff\xff\x60\x60\x5d\xb0" .
 832                 "\xaf\xaa\x00\x80\x00\xce\xcd\xc7\xc0\x00\x00\xe8\xe8\xe6\xf7\xf7" .
 833                 "\xf6\x95\x0c\xa7\x47\x00\x00\x00\x73\x49\x44\x41\x54\x28\xcf\x63" .
 834                 "\x48\x67\x20\x04\x4a\x5c\x18\x0a\x08\x2a\x62\x53\x61\x20\x02\x08" .
 835                 "\x0d\x69\x45\xac\xa1\xa1\x01\x30\x0c\x93\x60\x36\x26\x52\x91\xb1" .
 836                 "\x01\x11\xd6\xe1\x55\x64\x6c\x6c\xcc\x6c\x6c\x0c\xa2\x0c\x70\x2a" .
 837                 "\x62\x06\x2a\xc1\x62\x1d\xb3\x01\x02\x53\xa4\x08\xe8\x00\x03\x18" .
 838                 "\x26\x56\x11\xd4\xe1\x20\x97\x1b\xe0\xb4\x0e\x35\x24\x71\x29\x82" .
 839                 "\x99\x30\xb8\x93\x0a\x11\xb9\x45\x88\xc1\x8d\xa0\xa2\x44\x21\x06" .
 840                 "\x27\x41\x82\x40\x85\xc1\x45\x89\x20\x70\x01\x00\xa4\x3d\x21\xc5" .
 841                 "\x12\x1c\x9a\xfe\x00\x00\x00\x00\x49\x45\x4e\x44\xae\x42\x60\x82";
 842 }
 843
 844 sub get_file_owner {
 845         my $path = shift;
 846
 847         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 848         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 849         if (!defined $gcos) {
 850                 return undef;
 851         }
 852         my $owner = $gcos;
 853         $owner =~ s/[,;].*$//;
 854         return decode("utf8", $owner, Encode::FB_DEFAULT);
 855 }
 856
 857 sub git_read_projects {
 858         my @list;
 859
 860         if (-d $projects_list) {
 861                 # search in directory
 862                 my $dir = $projects_list;
 863                 opendir my ($dh), $dir or return undef;
 864                 while (my $dir = readdir($dh)) {
 865                         if (-e "$projectroot/$dir/HEAD") {
 866                                 my $pr = {
 867                                         path => $dir,
 868                                 };
 869                                 push @list, $pr
 870                         }
 871                 }
 872                 closedir($dh);
 873         } elsif (-f $projects_list) {
 874                 # read from file(url-encoded):
 875                 # 'git%2Fgit.git Linus+Torvalds'
 876                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 877                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 878                 open my ($fd), $projects_list or return undef;
 879                 while (my $line = <$fd>) {
 880                         chomp $line;
 881                         my ($path, $owner) = split ' ', $line;
 882                         $path = unescape($path);
 883                         $owner = unescape($owner);
 884                         if (!defined $path) {
 885                                 next;
 886                         }
 887                         if (-e "$projectroot/$path/HEAD") {
 888                                 my $pr = {
 889                                         path => $path,
 890                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 891                                 };
 892                                 push @list, $pr
 893                         }
 894                 }
 895                 close $fd;
 896         }
 897         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 898         return @list;
 899 }
 900
 901 sub git_get_project_config {
 902         my $key = shift;
 903
 904         return unless ($key);
 905         $key =~ s/^gitweb\.//;
 906         return if ($key =~ m/\W/);
 907
 908         my $val = qx($GIT repo-config --get gitweb.$key);
 909         return ($val);
 910 }
 911
 912 sub git_get_project_config_bool {
 913         my $val = git_get_project_config (@_);
 914         if ($val and $val =~ m/true|yes|on/) {
 915                 return (1);
 916         }
 917         return; # implicit false
 918 }
 919
 920 sub git_project_list {
 921         my @list = git_read_projects();
 922         my @projects;
 923         if (!@list) {
 924                 die_error(undef, "No project found.");
 925         }
 926         foreach my $pr (@list) {
 927                 my $head = git_read_head($pr->{'path'});
 928                 if (!defined $head) {
 929                         next;
 930                 }
 931                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
 932                 my %co = git_read_commit($head);
 933                 if (!%co) {
 934                         next;
 935                 }
 936                 $pr->{'commit'} = \%co;
 937                 if (!defined $pr->{'descr'}) {
 938                         my $descr = git_read_description($pr->{'path'}) || "";
 939                         $pr->{'descr'} = chop_str($descr, 25, 5);
 940                 }
 941                 if (!defined $pr->{'owner'}) {
 942                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
 943                 }
 944                 push @projects, $pr;
 945         }
 946         git_header_html();
 947         if (-f $home_text) {
 948                 print "<div class=\"index_include\">\n";
 949                 open (my $fd, $home_text);
 950                 print <$fd>;
 951                 close $fd;
 952                 print "</div>\n";
 953         }
 954         print "<table class=\"project_list\">\n" .
 955               "<tr>\n";
 956         if (!defined($order) || (defined($order) && ($order eq "project"))) {
 957                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
 958                 print "<th>Project</th>\n";
 959         } else {
 960                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=project")}, "Project") . "</th>\n";
 961         }
 962         if (defined($order) && ($order eq "descr")) {
 963                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
 964                 print "<th>Description</th>\n";
 965         } else {
 966                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=descr")}, "Description") . "</th>\n";
 967         }
 968         if (defined($order) && ($order eq "owner")) {
 969                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
 970                 print "<th>Owner</th>\n";
 971         } else {
 972                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=owner")}, "Owner") . "</th>\n";
 973         }
 974         if (defined($order) && ($order eq "age")) {
 975                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
 976                 print "<th>Last Change</th>\n";
 977         } else {
 978                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?" . esc_param("o=age")}, "Last Change") . "</th>\n";
 979         }
 980         print "<th></th>\n" .
 981               "</tr>\n";
 982         my $alternate = 0;
 983         foreach my $pr (@projects) {
 984                 if ($alternate) {
 985                         print "<tr class=\"dark\">\n";
 986                 } else {
 987                         print "<tr class=\"light\">\n";
 988                 }
 989                 $alternate ^= 1;
 990                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary"), -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
 991                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
 992                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
 993                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" . $pr->{'commit'}{'age_string'} . "</td>\n" .
 994                       "<td class=\"link\">" .
 995                       $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary")}, "summary") .
 996                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=shortlog")}, "shortlog") .
 997                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=log")}, "log") .
 998                       "</td>\n" .
 999                       "</tr>\n";
1000         }
1001         print "</table>\n";
1002         git_footer_html();
1003 }
1004
1005 sub read_info_ref {
1006         my $type = shift || "";
1007         my %refs;
1008         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
1009         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
1010         open my $fd, "$projectroot/$project/info/refs" or return;
1011         while (my $line = <$fd>) {
1012                 chomp $line;
1013                 if ($line =~ m/^([0-9a-fA-F]{40})\t.*$type\/([^\^]+)/) {
1014                         if (defined $refs{$1}) {
1015                                 $refs{$1} .= " / $2";
1016                         } else {
1017                                 $refs{$1} = $2;
1018                         }
1019                 }
1020         }
1021         close $fd or return;
1022         return \%refs;
1023 }
1024
1025 sub git_read_refs {
1026         my $ref_dir = shift;
1027         my @reflist;
1028
1029         my @refs;
1030         opendir my $dh, "$projectroot/$project/$ref_dir";
1031         while (my $dir = readdir($dh)) {
1032                 if ($dir =~ m/^\./) {
1033                         next;
1034                 }
1035                 if (-d "$projectroot/$project/$ref_dir/$dir") {
1036                         opendir my $dh2, "$projectroot/$project/$ref_dir/$dir";
1037                         my @subdirs = grep !m/^\./, readdir $dh2;
1038                         closedir($dh2);
1039                         foreach my $subdir (@subdirs) {
1040                                 push @refs, "$dir/$subdir"
1041                         }
1042                         next;
1043                 }
1044                 push @refs, $dir;
1045         }
1046         closedir($dh);
1047         foreach my $ref_file (@refs) {
1048                 my $ref_id = git_read_hash("$project/$ref_dir/$ref_file");
1049                 my $type = git_get_type($ref_id) || next;
1050                 my %ref_item;
1051                 my %co;
1052                 $ref_item{'type'} = $type;
1053                 $ref_item{'id'} = $ref_id;
1054                 $ref_item{'epoch'} = 0;
1055                 $ref_item{'age'} = "unknown";
1056                 if ($type eq "tag") {
1057                         my %tag = git_read_tag($ref_id);
1058                         $ref_item{'comment'} = $tag{'comment'};
1059                         if ($tag{'type'} eq "commit") {
1060                                 %co = git_read_commit($tag{'object'});
1061                                 $ref_item{'epoch'} = $co{'committer_epoch'};
1062                                 $ref_item{'age'} = $co{'age_string'};
1063                         } elsif (defined($tag{'epoch'})) {
1064                                 my $age = time - $tag{'epoch'};
1065                                 $ref_item{'epoch'} = $tag{'epoch'};
1066                                 $ref_item{'age'} = age_string($age);
1067                         }
1068                         $ref_item{'reftype'} = $tag{'type'};
1069                         $ref_item{'name'} = $tag{'name'};
1070                         $ref_item{'refid'} = $tag{'object'};
1071                 } elsif ($type eq "commit"){
1072                         %co = git_read_commit($ref_id);
1073                         $ref_item{'reftype'} = "commit";
1074                         $ref_item{'name'} = $ref_file;
1075                         $ref_item{'title'} = $co{'title'};
1076                         $ref_item{'refid'} = $ref_id;
1077                         $ref_item{'epoch'} = $co{'committer_epoch'};
1078                         $ref_item{'age'} = $co{'age_string'};
1079                 }
1080
1081                 push @reflist, \%ref_item;
1082         }
1083         # sort tags by age
1084         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1085         return \@reflist;
1086 }
1087
1088 sub git_summary {
1089         my $descr = git_read_description($project) || "none";
1090         my $head = git_read_head($project);
1091         my %co = git_read_commit($head);
1092         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1093
1094         my $owner;
1095         if (-f $projects_list) {
1096                 open (my $fd , $projects_list);
1097                 while (my $line = <$fd>) {
1098                         chomp $line;
1099                         my ($pr, $ow) = split ' ', $line;
1100                         $pr = unescape($pr);
1101                         $ow = unescape($ow);
1102                         if ($pr eq $project) {
1103                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
1104                                 last;
1105                         }
1106                 }
1107                 close $fd;
1108         }
1109         if (!defined $owner) {
1110                 $owner = get_file_owner("$projectroot/$project");
1111         }
1112
1113         my $refs = read_info_ref();
1114         git_header_html();
1115         git_page_nav('summary','', $head);
1116         print "<div class=\"title\">&nbsp;</div>\n";
1117         print "<table cellspacing=\"0\">\n" .
1118               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1119               "<tr><td>owner</td><td>$owner</td></tr>\n" .
1120               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n" .
1121               "</table>\n";
1122         open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_read_head($project)
1123                 or die_error(undef, "Open git-rev-list failed.");
1124         my @revlist = map { chomp; $_ } <$fd>;
1125         close $fd;
1126         print "<div>\n" .
1127               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog"), -class => "title"}, "shortlog") .
1128               "</div>\n";
1129         my $i = 16;
1130         print "<table cellspacing=\"0\">\n";
1131         my $alternate = 0;
1132         foreach my $commit (@revlist) {
1133                 my %co = git_read_commit($commit);
1134                 my %ad = date_str($co{'author_epoch'});
1135                 if ($alternate) {
1136                         print "<tr class=\"dark\">\n";
1137                 } else {
1138                         print "<tr class=\"light\">\n";
1139                 }
1140                 $alternate ^= 1;
1141                 if ($i-- > 0) {
1142                         my $ref = "";
1143                         if (defined $refs->{$commit}) {
1144                                 $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
1145                         }
1146                         print "<td><i>$co{'age_string'}</i></td>\n" .
1147                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1148                               "<td>";
1149                         if (length($co{'title_short'}) < length($co{'title'})) {
1150                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
1151                                       "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
1152                         } else {
1153                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
1154                                       "<b>" . esc_html($co{'title'}) . "$ref</b>");
1155                         }
1156                         print "</td>\n" .
1157                               "<td class=\"link\">" .
1158                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1159                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1160                               "</td>\n" .
1161                               "</tr>";
1162                 } else {
1163                         print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog")}, "...") . "</td>\n" .
1164                         "</tr>";
1165                         last;
1166                 }
1167         }
1168         print "</table\n>";
1169
1170         my $taglist = git_read_refs("refs/tags");
1171         if (defined @$taglist) {
1172                 print "<div>\n" .
1173                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags"), -class => "title"}, "tags") .
1174                       "</div>\n";
1175                 my $i = 16;
1176                 print "<table cellspacing=\"0\">\n";
1177                 my $alternate = 0;
1178                 foreach my $entry (@$taglist) {
1179                         my %tag = %$entry;
1180                         my $comment_lines = $tag{'comment'};
1181                         my $comment = shift @$comment_lines;
1182                         if (defined($comment)) {
1183                                 $comment = chop_str($comment, 30, 5);
1184                         }
1185                         if ($alternate) {
1186                                 print "<tr class=\"dark\">\n";
1187                         } else {
1188                                 print "<tr class=\"light\">\n";
1189                         }
1190                         $alternate ^= 1;
1191                         if ($i-- > 0) {
1192                                 print "<td><i>$tag{'age'}</i></td>\n" .
1193                                       "<td>" .
1194                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1195                                       "<b>" . esc_html($tag{'name'}) . "</b>") .
1196                                       "</td>\n" .
1197                                       "<td>";
1198                                 if (defined($comment)) {
1199                                         print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, esc_html($comment));
1200                                 }
1201                                 print "</td>\n" .
1202                                       "<td class=\"link\">";
1203                                 if ($tag{'type'} eq "tag") {
1204                                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1205                                 }
1206                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1207                                 if ($tag{'reftype'} eq "commit") {
1208                                         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1209                                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
1210                                 }
1211                                 print "</td>\n" .
1212                                       "</tr>";
1213                         } else {
1214                                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tags")}, "...") . "</td>\n" .
1215                                 "</tr>";
1216                                 last;
1217                         }
1218                 }
1219                 print "</table\n>";
1220         }
1221
1222         my $headlist = git_read_refs("refs/heads");
1223         if (defined @$headlist) {
1224                 print "<div>\n" .
1225                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads"), -class => "title"}, "heads") .
1226                       "</div>\n";
1227                 my $i = 16;
1228                 print "<table cellspacing=\"0\">\n";
1229                 my $alternate = 0;
1230                 foreach my $entry (@$headlist) {
1231                         my %tag = %$entry;
1232                         if ($alternate) {
1233                                 print "<tr class=\"dark\">\n";
1234                         } else {
1235                                 print "<tr class=\"light\">\n";
1236                         }
1237                         $alternate ^= 1;
1238                         if ($i-- > 0) {
1239                                 print "<td><i>$tag{'age'}</i></td>\n" .
1240                                       "<td>" .
1241                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"},
1242                                       "<b>" . esc_html($tag{'name'}) . "</b>") .
1243                                       "</td>\n" .
1244                                       "<td class=\"link\">" .
1245                                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1246                                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1247                                       "</td>\n" .
1248                                       "</tr>";
1249                         } else {
1250                                 print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=heads")}, "...") . "</td>\n" .
1251                                 "</tr>";
1252                                 last;
1253                         }
1254                 }
1255                 print "</table\n>";
1256         }
1257         git_footer_html();
1258 }
1259
1260 sub git_print_page_path {
1261         my $name = shift;
1262         my $type = shift;
1263
1264         if (!defined $name) {
1265                 print "<div class=\"page_path\"><b>/</b></div>\n";
1266         } elsif ($type =~ "blob") {
1267                 print "<div class=\"page_path\"><b>" .
1268                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;f=$file_name")}, esc_html($name)) . "</b><br/></div>\n";
1269         } else {
1270                 print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
1271         }
1272 }
1273
1274 sub git_tag {
1275         my $head = git_read_head($project);
1276         git_header_html();
1277         git_page_nav('','', $head,undef,$head);
1278         my %tag = git_read_tag($hash);
1279         print "<div>\n" .
1280               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($tag{'name'})) . "\n" .
1281               "</div>\n";
1282         print "<div class=\"title_text\">\n" .
1283               "<table cellspacing=\"0\">\n" .
1284               "<tr>\n" .
1285               "<td>object</td>\n" .
1286               "<td>" . $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'object'}) . "</td>\n" .
1287               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'type'};h=$tag{'object'}")}, $tag{'type'}) . "</td>\n" .
1288               "</tr>\n";
1289         if (defined($tag{'author'})) {
1290                 my %ad = date_str($tag{'epoch'}, $tag{'tz'});
1291                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1292                 print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1293         }
1294         print "</table>\n\n" .
1295               "</div>\n";
1296         print "<div class=\"page_body\">";
1297         my $comment = $tag{'comment'};
1298         foreach my $line (@$comment) {
1299                 print esc_html($line) . "<br/>\n";
1300         }
1301         print "</div>\n";
1302         git_footer_html();
1303 }
1304
1305 sub git_blame2 {
1306         my $fd;
1307         my $ftype;
1308         die_error(undef, "Permission denied.") if (!git_get_project_config_bool ('blame'));
1309         die_error('404 Not Found', "File name not defined") if (!$file_name);
1310         $hash_base ||= git_read_head($project);
1311         die_error(undef, "Reading commit failed") unless ($hash_base);
1312         my %co = git_read_commit($hash_base)
1313                 or die_error(undef, "Reading commit failed");
1314         if (!defined $hash) {
1315                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1316                         or die_error(undef, "Error looking up file");
1317         }
1318         $ftype = git_get_type($hash);
1319         if ($ftype !~ "blob") {
1320                 die_error("400 Bad Request", "object is not a blob");
1321         }
1322         open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
1323                 or die_error(undef, "Open git-blame failed.");
1324         git_header_html();
1325         my $formats_nav =
1326                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
1327                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head");
1328         git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1329         print "<div>" .
1330               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1331               "</div>\n";
1332         git_print_page_path($file_name, $ftype);
1333         my @rev_color = (qw(light dark));
1334         my $num_colors = scalar(@rev_color);
1335         my $current_color = 0;
1336         my $last_rev;
1337         print "<div class=\"page_body\">\n";
1338         print "<table class=\"blame\">\n";
1339         print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
1340         while (<$fd>) {
1341                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
1342                 my $full_rev = $1;
1343                 my $rev = substr($full_rev, 0, 8);
1344                 my $lineno = $2;
1345                 my $data = $3;
1346
1347                 if (!defined $last_rev) {
1348                         $last_rev = $full_rev;
1349                 } elsif ($last_rev ne $full_rev) {
1350                         $last_rev = $full_rev;
1351                         $current_color = ++$current_color % $num_colors;
1352                 }
1353                 print "<tr class=\"$rev_color[$current_color]\">\n";
1354                 print "<td class=\"sha1\">" .
1355                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$full_rev;f=$file_name")}, esc_html($rev)) . "</td>\n";
1356                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
1357                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
1358                 print "</tr>\n";
1359         }
1360         print "</table>\n";
1361         print "</div>";
1362         close $fd or print "Reading blob failed\n";
1363         git_footer_html();
1364 }
1365
1366 sub git_blame {
1367         my $fd;
1368         die_error('403 Permission denied', "Permission denied.") if (!git_get_project_config_bool ('blame'));
1369         die_error('404 Not Found', "What file will it be, master?") if (!$file_name);
1370         $hash_base ||= git_read_head($project);
1371         die_error(undef, "Reading commit failed.") unless ($hash_base);
1372         my %co = git_read_commit($hash_base)
1373                 or die_error(undef, "Reading commit failed.");
1374         if (!defined $hash) {
1375                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1376                         or die_error(undef, "Error lookup file.");
1377         }
1378         open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
1379                 or die_error(undef, "Open git-annotate failed.");
1380         git_header_html();
1381         my $formats_nav =
1382                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, "blob") .
1383                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;f=$file_name")}, "head");
1384         git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1385         print "<div>" .
1386               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1387               "</div>\n";
1388         git_print_page_path($file_name);
1389         print "<div class=\"page_body\">\n";
1390         print <<HTML;
1391 <table class="blame">
1392   <tr>
1393     <th>Commit</th>
1394     <th>Age</th>
1395     <th>Author</th>
1396     <th>Line</th>
1397     <th>Data</th>
1398   </tr>
1399 HTML
1400         my @line_class = (qw(light dark));
1401         my $line_class_len = scalar (@line_class);
1402         my $line_class_num = $#line_class;
1403         while (my $line = <$fd>) {
1404                 my $long_rev;
1405                 my $short_rev;
1406                 my $author;
1407                 my $time;
1408                 my $lineno;
1409                 my $data;
1410                 my $age;
1411                 my $age_str;
1412                 my $age_class;
1413
1414                 chomp $line;
1415                 $line_class_num = ($line_class_num + 1) % $line_class_len;
1416
1417                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
1418                         $long_rev = $1;
1419                         $author   = $2;
1420                         $time     = $3;
1421                         $lineno   = $4;
1422                         $data     = $5;
1423                 } else {
1424                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
1425                         next;
1426                 }
1427                 $short_rev  = substr ($long_rev, 0, 8);
1428                 $age        = time () - $time;
1429                 $age_str    = age_string ($age);
1430                 $age_str    =~ s/ /&nbsp;/g;
1431                 $age_class  = age_class($age);
1432                 $author     = esc_html ($author);
1433                 $author     =~ s/ /&nbsp;/g;
1434                 # escape tabs
1435                 while ((my $pos = index($data, "\t")) != -1) {
1436                         if (my $count = (8 - ($pos % 8))) {
1437                                 my $spaces = ' ' x $count;
1438                                 $data =~ s/\t/$spaces/;
1439                         }
1440                 }
1441                 $data = esc_html ($data);
1442
1443                 print <<HTML;
1444   <tr class="$line_class[$line_class_num]">
1445     <td class="sha1"><a href="$my_uri?${\esc_param ("p=$project;a=commit;h=$long_rev")}" class="text">$short_rev..</a></td>
1446     <td class="$age_class">$age_str</td>
1447     <td>$author</td>
1448     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
1449     <td class="pre">$data</td>
1450   </tr>
1451 HTML
1452         } # while (my $line = <$fd>)
1453         print "</table>\n\n";
1454         close $fd or print "Reading blob failed.\n";
1455         print "</div>";
1456         git_footer_html();
1457 }
1458
1459 sub git_tags {
1460         my $head = git_read_head($project);
1461         git_header_html();
1462         git_page_nav('','', $head,undef,$head);
1463         my $taglist = git_read_refs("refs/tags");
1464         print "<div>\n" .
1465               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1466               "</div>\n";
1467         print "<table cellspacing=\"0\">\n";
1468         my $alternate = 0;
1469         if (defined @$taglist) {
1470                 foreach my $entry (@$taglist) {
1471                         my %tag = %$entry;
1472                         my $comment_lines = $tag{'comment'};
1473                         my $comment = shift @$comment_lines;
1474                         if (defined($comment)) {
1475                                 $comment = chop_str($comment, 30, 5);
1476                         }
1477                         if ($alternate) {
1478                                 print "<tr class=\"dark\">\n";
1479                         } else {
1480                                 print "<tr class=\"light\">\n";
1481                         }
1482                         $alternate ^= 1;
1483                         print "<td><i>$tag{'age'}</i></td>\n" .
1484                               "<td>" .
1485                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}"), -class => "list"},
1486                               "<b>" . esc_html($tag{'name'}) . "</b>") .
1487                               "</td>\n" .
1488                               "<td>";
1489                         if (defined($comment)) {
1490                                 print $cgi->a({-class => "list", -href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, $comment);
1491                         }
1492                         print "</td>\n" .
1493                               "<td class=\"link\">";
1494                         if ($tag{'type'} eq "tag") {
1495                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tag;h=$tag{'id'}")}, "tag") . " | ";
1496                         }
1497                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=$tag{'reftype'};h=$tag{'refid'}")}, $tag{'reftype'});
1498                         if ($tag{'reftype'} eq "commit") {
1499                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1500                                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'refid'}")}, "log");
1501                         }
1502                         print "</td>\n" .
1503                               "</tr>";
1504                 }
1505         }
1506         print "</table\n>";
1507         git_footer_html();
1508 }
1509
1510 sub git_heads {
1511         my $head = git_read_head($project);
1512         git_header_html();
1513         git_page_nav('','', $head,undef,$head);
1514         my $taglist = git_read_refs("refs/heads");
1515         print "<div>\n" .
1516               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1517               "</div>\n";
1518         print "<table cellspacing=\"0\">\n";
1519         my $alternate = 0;
1520         if (defined @$taglist) {
1521                 foreach my $entry (@$taglist) {
1522                         my %tag = %$entry;
1523                         if ($alternate) {
1524                                 print "<tr class=\"dark\">\n";
1525                         } else {
1526                                 print "<tr class=\"light\">\n";
1527                         }
1528                         $alternate ^= 1;
1529                         print "<td><i>$tag{'age'}</i></td>\n" .
1530                               "<td>" .
1531                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}"), -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1532                               "</td>\n" .
1533                               "<td class=\"link\">" .
1534                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$tag{'name'}")}, "shortlog") .
1535                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=log;h=$tag{'name'}")}, "log") .
1536                               "</td>\n" .
1537                               "</tr>";
1538                 }
1539         }
1540         print "</table\n>";
1541         git_footer_html();
1542 }
1543
1544 sub git_get_hash_by_path {
1545         my $base = shift;
1546         my $path = shift || return undef;
1547
1548         my $tree = $base;
1549
1550         open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
1551                 or die_error(undef, "Open git-ls-tree failed.");
1552         my $line = <$fd>;
1553         close $fd or return undef;
1554
1555         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1556         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1557         return $3;
1558 }
1559
1560 sub mimetype_guess_file {
1561         my $filename = shift;
1562         my $mimemap = shift;
1563         -r $mimemap or return undef;
1564
1565         my %mimemap;
1566         open(MIME, $mimemap) or return undef;
1567         while (<MIME>) {
1568                 my ($mime, $exts) = split(/\t+/);
1569                 my @exts = split(/\s+/, $exts);
1570                 foreach my $ext (@exts) {
1571                         $mimemap{$ext} = $mime;
1572                 }
1573         }
1574         close(MIME);
1575
1576         $filename =~ /\.(.*?)$/;
1577         return $mimemap{$1};
1578 }
1579
1580 sub mimetype_guess {
1581         my $filename = shift;
1582         my $mime;
1583         $filename =~ /\./ or return undef;
1584
1585         if ($mimetypes_file) {
1586                 my $file = $mimetypes_file;
1587                 #$file =~ m#^/# or $file = "$projectroot/$path/$file";
1588                 $mime = mimetype_guess_file($filename, $file);
1589         }
1590         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1591         return $mime;
1592 }
1593
1594 sub git_blob_plain_mimetype {
1595         my $fd = shift;
1596         my $filename = shift;
1597
1598         if ($filename) {
1599                 my $mime = mimetype_guess($filename);
1600                 $mime and return $mime;
1601         }
1602
1603         # just in case
1604         return $default_blob_plain_mimetype unless $fd;
1605
1606         if (-T $fd) {
1607                 return 'text/plain' .
1608                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1609         } elsif (! $filename) {
1610                 return 'application/octet-stream';
1611         } elsif ($filename =~ m/\.png$/i) {
1612                 return 'image/png';
1613         } elsif ($filename =~ m/\.gif$/i) {
1614                 return 'image/gif';
1615         } elsif ($filename =~ m/\.jpe?g$/i) {
1616                 return 'image/jpeg';
1617         } else {
1618                 return 'application/octet-stream';
1619         }
1620 }
1621
1622 sub git_blob_plain {
1623         if (!defined $hash) {
1624                 if (defined $file_name) {
1625                         my $base = $hash_base || git_read_head($project);
1626                         $hash = git_get_hash_by_path($base, $file_name, "blob")
1627                                 or die_error(undef, "Error lookup file.");
1628                 } else {
1629                         die_error(undef, "No file name defined.");
1630                 }
1631         }
1632         my $type = shift;
1633         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
1634                 or die_error("Couldn't cat $file_name, $hash");
1635
1636         $type ||= git_blob_plain_mimetype($fd, $file_name);
1637
1638         # save as filename, even when no $file_name is given
1639         my $save_as = "$hash";
1640         if (defined $file_name) {
1641                 $save_as = $file_name;
1642         } elsif ($type =~ m/^text\//) {
1643                 $save_as .= '.txt';
1644         }
1645
1646         print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
1647         undef $/;
1648         binmode STDOUT, ':raw';
1649         print <$fd>;
1650         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
1651         $/ = "\n";
1652         close $fd;
1653 }
1654
1655 sub git_blob {
1656         if (!defined $hash) {
1657                 if (defined $file_name) {
1658                         my $base = $hash_base || git_read_head($project);
1659                         $hash = git_get_hash_by_path($base, $file_name, "blob")
1660                                 or die_error(undef, "Error lookup file.");
1661                 } else {
1662                         die_error(undef, "No file name defined.");
1663                 }
1664         }
1665         my $have_blame = git_get_project_config_bool ('blame');
1666         open my $fd, "-|", $GIT, "cat-file", "blob", $hash
1667                 or die_error(undef, "Couldn't cat $file_name, $hash.");
1668         my $mimetype = git_blob_plain_mimetype($fd, $file_name);
1669         if ($mimetype !~ m/^text\//) {
1670                 close $fd;
1671                 return git_blob_plain($mimetype);
1672         }
1673         git_header_html();
1674         my $formats_nav = '';
1675         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1676                 if (defined $file_name) {
1677                         if ($have_blame) {
1678                                 $formats_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$hash;hb=$hash_base;f=$file_name")}, "blame") . " | ";
1679                         }
1680                         $formats_nav .=
1681                                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash;f=$file_name")}, "plain") .
1682                                 " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=HEAD;f=$file_name")}, "head");
1683                 } else {
1684                         $formats_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$hash")}, "plain");
1685                 }
1686                 git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1687                 print "<div>" .
1688                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) .
1689                       "</div>\n";
1690         } else {
1691                 print "<div class=\"page_nav\">\n" .
1692                       "<br/><br/></div>\n" .
1693                       "<div class=\"title\">$hash</div>\n";
1694         }
1695         git_print_page_path($file_name, "blob");
1696         print "<div class=\"page_body\">\n";
1697         my $nr;
1698         while (my $line = <$fd>) {
1699                 chomp $line;
1700                 $nr++;
1701                 while ((my $pos = index($line, "\t")) != -1) {
1702                         if (my $count = (8 - ($pos % 8))) {
1703                                 my $spaces = ' ' x $count;
1704                                 $line =~ s/\t/$spaces/;
1705                         }
1706                 }
1707                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
1708         }
1709         close $fd or print "Reading blob failed.\n";
1710         print "</div>";
1711         git_footer_html();
1712 }
1713
1714 sub git_tree {
1715         if (!defined $hash) {
1716                 $hash = git_read_head($project);
1717                 if (defined $file_name) {
1718                         my $base = $hash_base || $hash;
1719                         $hash = git_get_hash_by_path($base, $file_name, "tree");
1720                 }
1721                 if (!defined $hash_base) {
1722                         $hash_base = $hash;
1723                 }
1724         }
1725         $/ = "\0";
1726         open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
1727                 or die_error(undef, "Open git-ls-tree failed.");
1728         my @entries = map { chomp; $_ } <$fd>;
1729         close $fd or die_error(undef, "Reading tree failed.");
1730         $/ = "\n";
1731
1732         my $refs = read_info_ref();
1733         my $ref = "";
1734         if (defined $refs->{$hash_base}) {
1735                 $ref = " <span class=\"tag\">" . esc_html($refs->{$hash_base}) . "</span>";
1736         }
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                 print "<div>\n" .
1744                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
1745                       "</div>\n";
1746         } else {
1747                 print "<div class=\"page_nav\">\n";
1748                 print "<br/><br/></div>\n";
1749                 print "<div class=\"title\">$hash</div>\n";
1750         }
1751         if (defined $file_name) {
1752                 $base = esc_html("$file_name/");
1753         }
1754         git_print_page_path($file_name);
1755         print "<div class=\"page_body\">\n";
1756         print "<table cellspacing=\"0\">\n";
1757         my $alternate = 0;
1758         foreach my $line (@entries) {
1759                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1760                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1761                 my $t_mode = $1;
1762                 my $t_type = $2;
1763                 my $t_hash = $3;
1764                 my $t_name = validate_input($4);
1765                 if ($alternate) {
1766                         print "<tr class=\"dark\">\n";
1767                 } else {
1768                         print "<tr class=\"light\">\n";
1769                 }
1770                 $alternate ^= 1;
1771                 print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
1772                 if ($t_type eq "blob") {
1773                         print "<td class=\"list\">" .
1774                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name"), -class => "list"}, esc_html($t_name)) .
1775                               "</td>\n" .
1776                               "<td class=\"link\">" .
1777                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name")}, "blob") .
1778 #                             " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$t_hash$base_key;f=$base$t_name")}, "blame") .
1779                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$t_hash;hb=$hash_base;f=$base$t_name")}, "history") .
1780                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$t_hash;f=$base$t_name")}, "raw") .
1781                               "</td>\n";
1782                 } elsif ($t_type eq "tree") {
1783                         print "<td class=\"list\">" .
1784                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, esc_html($t_name)) .
1785                               "</td>\n" .
1786                               "<td class=\"link\">" .
1787                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, "tree") .
1788                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash_base;f=$base$t_name")}, "history") .
1789                               "</td>\n";
1790                 }
1791                 print "</tr>\n";
1792         }
1793         print "</table>\n" .
1794               "</div>";
1795         git_footer_html();
1796 }
1797
1798 sub git_rss {
1799         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
1800         open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_read_head($project)
1801                 or die_error(undef, "Open git-rev-list failed.");
1802         my @revlist = map { chomp; $_ } <$fd>;
1803         close $fd or die_error(undef, "Reading rev-list failed.");
1804         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1805         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1806               "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
1807         print "<channel>\n";
1808         print "<title>$project</title>\n".
1809               "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
1810               "<description>$project log</description>\n".
1811               "<language>en</language>\n";
1812
1813         for (my $i = 0; $i <= $#revlist; $i++) {
1814                 my $commit = $revlist[$i];
1815                 my %co = git_read_commit($commit);
1816                 # we read 150, we always show 30 and the ones more recent than 48 hours
1817                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
1818                         last;
1819                 }
1820                 my %cd = date_str($co{'committer_epoch'});
1821                 open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
1822                 my @difftree = map { chomp; $_ } <$fd>;
1823                 close $fd or next;
1824                 print "<item>\n" .
1825                       "<title>" .
1826                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
1827                       "</title>\n" .
1828                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
1829                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
1830                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
1831                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
1832                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
1833                       "<content:encoded>" .
1834                       "<![CDATA[\n";
1835                 my $comment = $co{'comment'};
1836                 foreach my $line (@$comment) {
1837                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
1838                         print "$line<br/>\n";
1839                 }
1840                 print "<br/>\n";
1841                 foreach my $line (@difftree) {
1842                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
1843                                 next;
1844                         }
1845                         my $file = validate_input(unquote($7));
1846                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
1847                         print "$file<br/>\n";
1848                 }
1849                 print "]]>\n" .
1850                       "</content:encoded>\n" .
1851                       "</item>\n";
1852         }
1853         print "</channel></rss>";
1854 }
1855
1856 sub git_opml {
1857         my @list = git_read_projects();
1858
1859         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1860         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1861               "<opml version=\"1.0\">\n".
1862               "<head>".
1863               "  <title>$site_name Git OPML Export</title>\n".
1864               "</head>\n".
1865               "<body>\n".
1866               "<outline text=\"git RSS feeds\">\n";
1867
1868         foreach my $pr (@list) {
1869                 my %proj = %$pr;
1870                 my $head = git_read_head($proj{'path'});
1871                 if (!defined $head) {
1872                         next;
1873                 }
1874                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
1875                 my %co = git_read_commit($head);
1876                 if (!%co) {
1877                         next;
1878                 }
1879
1880                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
1881                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
1882                 my $html = "$my_url?p=$proj{'path'};a=summary";
1883                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
1884         }
1885         print "</outline>\n".
1886               "</body>\n".
1887               "</opml>\n";
1888 }
1889
1890 sub git_log {
1891         my $head = git_read_head($project);
1892         if (!defined $hash) {
1893                 $hash = $head;
1894         }
1895         if (!defined $page) {
1896                 $page = 0;
1897         }
1898         my $refs = read_info_ref();
1899
1900         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
1901         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
1902                 or die_error(undef, "Open git-rev-list failed.");
1903         my @revlist = map { chomp; $_ } <$fd>;
1904         close $fd;
1905
1906         my $paging_nav = git_get_paging_nav('log', $hash, $head, $page, $#revlist);
1907
1908         git_header_html();
1909         git_page_nav('log','', $hash,undef,undef, $paging_nav);
1910
1911         if (!@revlist) {
1912                 print "<div>\n" .
1913                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
1914                       "</div>\n";
1915                 my %co = git_read_commit($hash);
1916                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
1917         }
1918         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
1919                 my $commit = $revlist[$i];
1920                 my $ref = "";
1921                 if (defined $refs->{$commit}) {
1922                         $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
1923                 }
1924                 my %co = git_read_commit($commit);
1925                 next if !%co;
1926                 my %ad = date_str($co{'author_epoch'});
1927                 print "<div>\n" .
1928                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "title"},
1929                       "<span class=\"age\">$co{'age_string'}</span>" . esc_html($co{'title'}) . $ref) . "\n";
1930                 print "</div>\n";
1931                 print "<div class=\"title_text\">\n" .
1932                       "<div class=\"log_link\">\n" .
1933                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
1934                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
1935                       "<br/>\n" .
1936                       "</div>\n" .
1937                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
1938                       "</div>\n" .
1939                       "<div class=\"log_body\">\n";
1940                 my $comment = $co{'comment'};
1941                 my $empty = 0;
1942                 foreach my $line (@$comment) {
1943                         if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1944                                 next;
1945                         }
1946                         if ($line eq "") {
1947                                 if ($empty) {
1948                                         next;
1949                                 }
1950                                 $empty = 1;
1951                         } else {
1952                                 $empty = 0;
1953                         }
1954                         print format_log_line_html($line) . "<br/>\n";
1955                 }
1956                 if (!$empty) {
1957                         print "<br/>\n";
1958                 }
1959                 print "</div>\n";
1960         }
1961         git_footer_html();
1962 }
1963
1964 sub git_commit {
1965         my %co = git_read_commit($hash);
1966         if (!%co) {
1967                 die_error(undef, "Unknown commit object.");
1968         }
1969         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
1970         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1971
1972         my $parent = $co{'parent'};
1973         if (!defined $parent) {
1974                 $parent = "--root";
1975         }
1976         open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
1977                 or die_error(undef, "Open git-diff-tree failed.");
1978         my @difftree = map { chomp; $_ } <$fd>;
1979         close $fd or die_error(undef, "Reading git-diff-tree failed.");
1980
1981         # non-textual hash id's can be cached
1982         my $expires;
1983         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
1984                 $expires = "+1d";
1985         }
1986         my $refs = read_info_ref();
1987         my $ref = "";
1988         if (defined $refs->{$co{'id'}}) {
1989                 $ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
1990         }
1991         git_header_html(undef, $expires);
1992         my $formats_nav = '';
1993         if (defined $file_name && defined $co{'parent'}) {
1994                 my $parent = $co{'parent'};
1995                 $formats_nav .= $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;hb=$parent;f=$file_name")}, "blame");
1996         }
1997         git_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
1998                                                          $hash, $co{'tree'}, $hash,
1999                                                          $formats_nav);
2000
2001         if (defined $co{'parent'}) {
2002                 print "<div>\n" .
2003                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
2004                       "</div>\n";
2005         } else {
2006                 print "<div>\n" .
2007                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2008                       "</div>\n";
2009         }
2010         print "<div class=\"title_text\">\n" .
2011               "<table cellspacing=\"0\">\n";
2012         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2013               "<tr>" .
2014               "<td></td><td> $ad{'rfc2822'}";
2015         if ($ad{'hour_local'} < 6) {
2016                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2017         } else {
2018                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2019         }
2020         print "</td>" .
2021               "</tr>\n";
2022         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2023         print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
2024         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2025         print "<tr>" .
2026               "<td>tree</td>" .
2027               "<td class=\"sha1\">" .
2028               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash"), class => "list"}, $co{'tree'}) .
2029               "</td>" .
2030               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$hash")}, "tree") .
2031               "</td>" .
2032               "</tr>\n";
2033         my $parents = $co{'parents'};
2034         foreach my $par (@$parents) {
2035                 print "<tr>" .
2036                       "<td>parent</td>" .
2037                       "<td class=\"sha1\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par"), class => "list"}, $par) . "</td>" .
2038                       "<td class=\"link\">" .
2039                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$par")}, "commit") .
2040                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$hash;hp=$par")}, "commitdiff") .
2041                       "</td>" .
2042                       "</tr>\n";
2043         }
2044         print "</table>".
2045               "</div>\n";
2046         print "<div class=\"page_body\">\n";
2047         my $comment = $co{'comment'};
2048         my $empty = 0;
2049         my $signed = 0;
2050         foreach my $line (@$comment) {
2051                 # print only one empty line
2052                 if ($line eq "") {
2053                         if ($empty || $signed) {
2054                                 next;
2055                         }
2056                         $empty = 1;
2057                 } else {
2058                         $empty = 0;
2059                 }
2060                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2061                         $signed = 1;
2062                         print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2063                 } else {
2064                         $signed = 0;
2065                         print format_log_line_html($line) . "<br/>\n";
2066                 }
2067         }
2068         print "</div>\n";
2069         print "<div class=\"list_head\">\n";
2070         if ($#difftree > 10) {
2071                 print(($#difftree + 1) . " files changed:\n");
2072         }
2073         print "</div>\n";
2074         print "<table class=\"diff_tree\">\n";
2075         my $alternate = 0;
2076         foreach my $line (@difftree) {
2077                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2078                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2079                 if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
2080                         next;
2081                 }
2082                 my $from_mode = $1;
2083                 my $to_mode = $2;
2084                 my $from_id = $3;
2085                 my $to_id = $4;
2086                 my $status = $5;
2087                 my $similarity = $6;
2088                 my $file = validate_input(unquote($7));
2089                 if ($alternate) {
2090                         print "<tr class=\"dark\">\n";
2091                 } else {
2092                         print "<tr class=\"light\">\n";
2093                 }
2094                 $alternate ^= 1;
2095                 if ($status eq "A") {
2096                         my $mode_chng = "";
2097                         if (S_ISREG(oct $to_mode)) {
2098                                 $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
2099                         }
2100                         print "<td>" .
2101                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
2102                               "<td><span class=\"file_status new\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
2103                               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob") . "</td>\n";
2104                 } elsif ($status eq "D") {
2105                         print "<td>" .
2106                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file)) . "</td>\n" .
2107                               "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
2108                               "<td class=\"link\">" .
2109                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, "blob") .
2110                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") .
2111                               "</td>\n"
2112                 } elsif ($status eq "M" || $status eq "T") {
2113                         my $mode_chnge = "";
2114                         if ($from_mode != $to_mode) {
2115                                 $mode_chnge = " <span class=\"file_status mode_chnge\">[changed";
2116                                 if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
2117                                         $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
2118                                 }
2119                                 if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
2120                                         if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
2121                                                 $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
2122                                         } elsif (S_ISREG($to_mode)) {
2123                                                 $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
2124                                         }
2125                                 }
2126                                 $mode_chnge .= "]</span>\n";
2127                         }
2128                         print "<td>";
2129                         if ($to_id ne $from_id) {
2130                                 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));
2131                         } else {
2132                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file"), -class => "list"}, esc_html($file));
2133                         }
2134                         print "</td>\n" .
2135                               "<td>$mode_chnge</td>\n" .
2136                               "<td class=\"link\">";
2137                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, "blob");
2138                         if ($to_id ne $from_id) {
2139                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file")}, "diff");
2140                         }
2141                         print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash;f=$file")}, "history") . "\n";
2142                         print "</td>\n";
2143                 } elsif ($status eq "R") {
2144                         my ($from_file, $to_file) = split "\t", $file;
2145                         my $mode_chng = "";
2146                         if ($from_mode != $to_mode) {
2147                                 $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
2148                         }
2149                         print "<td>" .
2150                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file"), -class => "list"}, esc_html($to_file)) . "</td>\n" .
2151                               "<td><span class=\"file_status moved\">[moved from " .
2152                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$from_file"), -class => "list"}, esc_html($from_file)) .
2153                               " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
2154                               "<td class=\"link\">" .
2155                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file")}, "blob");
2156                         if ($to_id ne $from_id) {
2157                                 print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file")}, "diff");
2158                         }
2159                         print "</td>\n";
2160                 }
2161                 print "</tr>\n";
2162         }
2163         print "</table>\n";
2164         git_footer_html();
2165 }
2166
2167 sub git_blobdiff {
2168         mkdir($git_temp, 0700);
2169         git_header_html();
2170         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
2171                 my $formats_nav =
2172                         $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
2173                 git_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2174                 print "<div>\n" .
2175                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2176                       "</div>\n";
2177         } else {
2178                 print "<div class=\"page_nav\">\n" .
2179                       "<br/><br/></div>\n" .
2180                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
2181         }
2182         git_print_page_path($file_name, "blob");
2183         print "<div class=\"page_body\">\n" .
2184               "<div class=\"diff_info\">blob:" .
2185               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name")}, $hash_parent) .
2186               " -> blob:" .
2187               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, $hash) .
2188               "</div>\n";
2189         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2190         print "</div>";
2191         git_footer_html();
2192 }
2193
2194 sub git_blobdiff_plain {
2195         mkdir($git_temp, 0700);
2196         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2197         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2198 }
2199
2200 sub git_commitdiff {
2201         mkdir($git_temp, 0700);
2202         my %co = git_read_commit($hash);
2203         if (!%co) {
2204                 die_error(undef, "Unknown commit object.");
2205         }
2206         if (!defined $hash_parent) {
2207                 $hash_parent = $co{'parent'};
2208         }
2209         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2210                 or die_error(undef, "Open git-diff-tree failed.");
2211         my @difftree = map { chomp; $_ } <$fd>;
2212         close $fd or die_error(undef, "Reading diff-tree failed.");
2213
2214         # non-textual hash id's can be cached
2215         my $expires;
2216         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2217                 $expires = "+1d";
2218         }
2219         my $refs = read_info_ref();
2220         my $ref = "";
2221         if (defined $refs->{$co{'id'}}) {
2222                 $ref = " <span class=\"tag\">" . esc_html($refs->{$co{'id'}}) . "</span>";
2223         }
2224         git_header_html(undef, $expires);
2225         my $formats_nav =
2226                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
2227         git_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
2228         print "<div>\n" .
2229               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'}) . $ref) . "\n" .
2230               "</div>\n";
2231         print "<div class=\"page_body\">\n";
2232         my $comment = $co{'comment'};
2233         my $empty = 0;
2234         my $signed = 0;
2235         my @log = @$comment;
2236         # remove first and empty lines after that
2237         shift @log;
2238         while (defined $log[0] && $log[0] eq "") {
2239                 shift @log;
2240         }
2241         foreach my $line (@log) {
2242                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2243                         next;
2244                 }
2245                 if ($line eq "") {
2246                         if ($empty) {
2247                                 next;
2248                         }
2249                         $empty = 1;
2250                 } else {
2251                         $empty = 0;
2252                 }
2253                 print format_log_line_html($line) . "<br/>\n";
2254         }
2255         print "<br/>\n";
2256         foreach my $line (@difftree) {
2257                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2258                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2259                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2260                 my $from_mode = $1;
2261                 my $to_mode = $2;
2262                 my $from_id = $3;
2263                 my $to_id = $4;
2264                 my $status = $5;
2265                 my $file = validate_input(unquote($6));
2266                 if ($status eq "A") {
2267                         print "<div class=\"diff_info\">" . file_type($to_mode) . ":" .
2268                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id) . "(new)" .
2269                               "</div>\n";
2270                         git_diff_print(undef, "/dev/null", $to_id, "b/$file");
2271                 } elsif ($status eq "D") {
2272                         print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
2273                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) . "(deleted)" .
2274                               "</div>\n";
2275                         git_diff_print($from_id, "a/$file", undef, "/dev/null");
2276                 } elsif ($status eq "M") {
2277                         if ($from_id ne $to_id) {
2278                                 print "<div class=\"diff_info\">" .
2279                                       file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash;f=$file")}, $from_id) .
2280                                       " -> " .
2281                                       file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id);
2282                                 print "</div>\n";
2283                                 git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
2284                         }
2285                 }
2286         }
2287         print "<br/>\n" .
2288               "</div>";
2289         git_footer_html();
2290 }
2291
2292 sub git_commitdiff_plain {
2293         mkdir($git_temp, 0700);
2294         open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2295                 or die_error(undef, "Open git-diff-tree failed.");
2296         my @difftree = map { chomp; $_ } <$fd>;
2297         close $fd or die_error(undef, "Reading diff-tree failed.");
2298
2299         # try to figure out the next tag after this commit
2300         my $tagname;
2301         my $refs = read_info_ref("tags");
2302         open $fd, "-|", $GIT, "rev-list", "HEAD";
2303         my @commits = map { chomp; $_ } <$fd>;
2304         close $fd;
2305         foreach my $commit (@commits) {
2306                 if (defined $refs->{$commit}) {
2307                         $tagname = $refs->{$commit}
2308                 }
2309                 if ($commit eq $hash) {
2310                         last;
2311                 }
2312         }
2313
2314         print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2315         my %co = git_read_commit($hash);
2316         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
2317         my $comment = $co{'comment'};
2318         print "From: $co{'author'}\n" .
2319               "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2320               "Subject: $co{'title'}\n";
2321         if (defined $tagname) {
2322                 print "X-Git-Tag: $tagname\n";
2323         }
2324         print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2325               "\n";
2326
2327         foreach my $line (@$comment) {;
2328                 print "$line\n";
2329         }
2330         print "---\n\n";
2331
2332         foreach my $line (@difftree) {
2333                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
2334                 my $from_id = $3;
2335                 my $to_id = $4;
2336                 my $status = $5;
2337                 my $file = $6;
2338                 if ($status eq "A") {
2339                         git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2340                 } elsif ($status eq "D") {
2341                         git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2342                 } elsif ($status eq "M") {
2343                         git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2344                 }
2345         }
2346 }
2347
2348 sub git_history {
2349         if (!defined $hash_base) {
2350                 $hash_base = git_read_head($project);
2351         }
2352         my $ftype;
2353         my %co = git_read_commit($hash_base);
2354         if (!%co) {
2355                 die_error(undef, "Unknown commit object.");
2356         }
2357         my $refs = read_info_ref();
2358         git_header_html();
2359         git_page_nav('','', $hash_base,$co{'tree'},$hash_base);
2360         print "<div>\n" .
2361               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash_base"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2362               "</div>\n";
2363         if (!defined $hash && defined $file_name) {
2364                 $hash = git_get_hash_by_path($hash_base, $file_name);
2365         }
2366         if (defined $hash) {
2367                 $ftype = git_get_type($hash);
2368         }
2369         git_print_page_path($file_name, $ftype);
2370
2371         open my $fd, "-|",
2372                 $GIT, "rev-list", "--full-history", $hash_base, "--", "\'$file_name\'";
2373         print "<table cellspacing=\"0\">\n";
2374         my $alternate = 0;
2375         while (my $line = <$fd>) {
2376                 if ($line =~ m/^([0-9a-fA-F]{40})/){
2377                         my $commit = $1;
2378                         my %co = git_read_commit($commit);
2379                         if (!%co) {
2380                                 next;
2381                         }
2382                         my $ref = "";
2383                         if (defined $refs->{$commit}) {
2384                                 $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
2385                         }
2386                         if ($alternate) {
2387                                 print "<tr class=\"dark\">\n";
2388                         } else {
2389                                 print "<tr class=\"light\">\n";
2390                         }
2391                         $alternate ^= 1;
2392                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2393                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2394                               "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"}, "<b>" .
2395                               esc_html(chop_str($co{'title'}, 50)) . "$ref</b>") . "</td>\n" .
2396                               "<td class=\"link\">" .
2397                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2398                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2399                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;hb=$commit;f=$file_name")}, "blob");
2400                         my $blob = git_get_hash_by_path($hash_base, $file_name);
2401                         my $blob_parent = git_get_hash_by_path($commit, $file_name);
2402                         if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
2403                                 print " | " .
2404                                 $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff;h=$blob;hp=$blob_parent;hb=$commit;f=$file_name")},
2405                                 "diff to current");
2406                         }
2407                         print "</td>\n" .
2408                               "</tr>\n";
2409                 }
2410         }
2411         print "</table>\n";
2412         close $fd;
2413         git_footer_html();
2414 }
2415
2416 sub git_search {
2417         if (!defined $searchtext) {
2418                 die_error("", "Text field empty.");
2419         }
2420         if (!defined $hash) {
2421                 $hash = git_read_head($project);
2422         }
2423         my %co = git_read_commit($hash);
2424         if (!%co) {
2425                 die_error(undef, "Unknown commit object.");
2426         }
2427         # pickaxe may take all resources of your box and run for several minutes
2428         # with every query - so decide by yourself how public you make this feature :)
2429         my $commit_search = 1;
2430         my $author_search = 0;
2431         my $committer_search = 0;
2432         my $pickaxe_search = 0;
2433         if ($searchtext =~ s/^author\\://i) {
2434                 $author_search = 1;
2435         } elsif ($searchtext =~ s/^committer\\://i) {
2436                 $committer_search = 1;
2437         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2438                 $commit_search = 0;
2439                 $pickaxe_search = 1;
2440         }
2441         git_header_html();
2442         git_page_nav('','', $hash,$co{'tree'},$hash);
2443
2444         print "<div>\n" .
2445               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$hash"), -class => "title"}, esc_html($co{'title'})) . "\n" .
2446               "</div>\n";
2447         print "<table cellspacing=\"0\">\n";
2448         my $alternate = 0;
2449         if ($commit_search) {
2450                 $/ = "\0";
2451                 open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
2452                 while (my $commit_text = <$fd>) {
2453                         if (!grep m/$searchtext/i, $commit_text) {
2454                                 next;
2455                         }
2456                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2457                                 next;
2458                         }
2459                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2460                                 next;
2461                         }
2462                         my @commit_lines = split "\n", $commit_text;
2463                         my %co = git_read_commit(undef, \@commit_lines);
2464                         if (!%co) {
2465                                 next;
2466                         }
2467                         if ($alternate) {
2468                                 print "<tr class=\"dark\">\n";
2469                         } else {
2470                                 print "<tr class=\"light\">\n";
2471                         }
2472                         $alternate ^= 1;
2473                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2474                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2475                               "<td>" .
2476                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2477                         my $comment = $co{'comment'};
2478                         foreach my $line (@$comment) {
2479                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2480                                         my $lead = esc_html($1) || "";
2481                                         $lead = chop_str($lead, 30, 10);
2482                                         my $match = esc_html($2) || "";
2483                                         my $trail = esc_html($3) || "";
2484                                         $trail = chop_str($trail, 30, 10);
2485                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
2486                                         print chop_str($text, 80, 5) . "<br/>\n";
2487                                 }
2488                         }
2489                         print "</td>\n" .
2490                               "<td class=\"link\">" .
2491                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2492                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2493                         print "</td>\n" .
2494                               "</tr>\n";
2495                 }
2496                 close $fd;
2497         }
2498
2499         if ($pickaxe_search) {
2500                 $/ = "\n";
2501                 open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
2502                 undef %co;
2503                 my @files;
2504                 while (my $line = <$fd>) {
2505                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2506                                 my %set;
2507                                 $set{'file'} = $6;
2508                                 $set{'from_id'} = $3;
2509                                 $set{'to_id'} = $4;
2510                                 $set{'id'} = $set{'to_id'};
2511                                 if ($set{'id'} =~ m/0{40}/) {
2512                                         $set{'id'} = $set{'from_id'};
2513                                 }
2514                                 if ($set{'id'} =~ m/0{40}/) {
2515                                         next;
2516                                 }
2517                                 push @files, \%set;
2518                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2519                                 if (%co) {
2520                                         if ($alternate) {
2521                                                 print "<tr class=\"dark\">\n";
2522                                         } else {
2523                                                 print "<tr class=\"light\">\n";
2524                                         }
2525                                         $alternate ^= 1;
2526                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2527                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2528                                               "<td>" .
2529                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" .
2530                                               esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2531                                         while (my $setref = shift @files) {
2532                                                 my %set = %$setref;
2533                                                 print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$set{'id'};hb=$co{'id'};f=$set{'file'}"), class => "list"},
2534                                                       "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
2535                                                       "<br/>\n";
2536                                         }
2537                                         print "</td>\n" .
2538                                               "<td class=\"link\">" .
2539                                               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2540                                               " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2541                                         print "</td>\n" .
2542                                               "</tr>\n";
2543                                 }
2544                                 %co = git_read_commit($1);
2545                         }
2546                 }
2547                 close $fd;
2548         }
2549         print "</table>\n";
2550         git_footer_html();
2551 }
2552
2553 sub git_shortlog {
2554         my $head = git_read_head($project);
2555         if (!defined $hash) {
2556                 $hash = $head;
2557         }
2558         if (!defined $page) {
2559                 $page = 0;
2560         }
2561         my $refs = read_info_ref();
2562
2563         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2564         open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2565                 or die_error(undef, "Open git-rev-list failed.");
2566         my @revlist = map { chomp; $_ } <$fd>;
2567         close $fd;
2568
2569         my $paging_nav = git_get_paging_nav('shortlog', $hash, $head, $page, $#revlist);
2570
2571         git_header_html();
2572         git_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
2573
2574         print "<div>\n" .
2575               $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=summary"), -class => "title"}, "&nbsp;") .
2576               "</div>\n";
2577         print "<table cellspacing=\"0\">\n";
2578         my $alternate = 0;
2579         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2580                 my $commit = $revlist[$i];
2581                 my $ref = "";
2582                 if (defined $refs->{$commit}) {
2583                         $ref = " <span class=\"tag\">" . esc_html($refs->{$commit}) . "</span>";
2584                 }
2585                 my %co = git_read_commit($commit);
2586                 my %ad = date_str($co{'author_epoch'});
2587                 if ($alternate) {
2588                         print "<tr class=\"dark\">\n";
2589                 } else {
2590                         print "<tr class=\"light\">\n";
2591                 }
2592                 $alternate ^= 1;
2593                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2594                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2595                       "<td>";
2596                 if (length($co{'title_short'}) < length($co{'title'})) {
2597                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list", -title => "$co{'title'}"},
2598                               "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
2599                 } else {
2600                         print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit"), -class => "list"},
2601                               "<b>" . esc_html($co{'title_short'}) . "$ref</b>");
2602                 }
2603                 print "</td>\n" .
2604                       "<td class=\"link\">" .
2605                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$commit")}, "commit") .
2606                       " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff;h=$commit")}, "commitdiff") .
2607                       "</td>\n" .
2608                       "</tr>";
2609         }
2610         if ($#revlist >= (100 * ($page+1)-1)) {
2611                 print "<tr>\n" .
2612                       "<td>" .
2613                       $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)), -title => "Alt-n"}, "next") .
2614                       "</td>\n" .
2615                       "</tr>\n";
2616         }
2617         print "</table\n>";
2618         git_footer_html();
2619 }