gitweb/gitweb.perl

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