gitweb/gitweb.perl

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Encode;
  16 use Fcntl ':mode';
  17 use File::Find qw();
  18 use File::Basename qw(basename);
  19 binmode STDOUT, ':utf8';
  20
  21 our $cgi = new CGI;
  22 our $version = "++GIT_VERSION++";
  23 our $my_url = $cgi->url();
  24 our $my_uri = $cgi->url(-absolute => 1);
  25
  26 # core git executable to use
  27 # this can just be "git" if your webserver has a sensible PATH
  28 our $GIT = "++GIT_BINDIR++/git";
  29
  30 # absolute fs-path which will be prepended to the project path
  31 #our $projectroot = "/pub/scm";
  32 our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34 # target of the home link on top of all pages
  35 our $home_link = $my_uri || "/";
  36
  37 # string of the home link on top of all pages
  38 our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40 # name of your site or organization to appear in page titles
  41 # replace this with something more descriptive for clearer bookmarks
  42 our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  43
  44 # html text to include at home page
  45 our $home_text = "++GITWEB_HOMETEXT++";
  46
  47 # URI of default stylesheet
  48 our $stylesheet = "++GITWEB_CSS++";
  49 # URI of GIT logo
  50 our $logo = "++GITWEB_LOGO++";
  51 # URI of GIT favicon, assumed to be image/png type
  52 our $favicon = "++GITWEB_FAVICON++";
  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 # You define site-wide feature defaults here; override them with
  70 # $GITWEB_CONFIG as necessary.
  71 our %feature = (
  72         # feature => {
  73         #       'sub' => feature-sub (subroutine),
  74         #       'override' => allow-override (boolean),
  75         #       'default' => [ default options...] (array reference)}
  76         #
  77         # if feature is overridable (it means that allow-override has true value,
  78         # then feature-sub will be called with default options as parameters;
  79         # return value of feature-sub indicates if to enable specified feature
  80         #
  81         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  82
  83         'blame' => {
  84                 'sub' => \&feature_blame,
  85                 'override' => 0,
  86                 'default' => [0]},
  87
  88         'snapshot' => {
  89                 'sub' => \&feature_snapshot,
  90                 'override' => 0,
  91                 #         => [content-encoding, suffix, program]
  92                 'default' => ['x-gzip', 'gz', 'gzip']},
  93
  94         'pickaxe' => {
  95                 'sub' => \&feature_pickaxe,
  96                 'override' => 0,
  97                 'default' => [1]},
  98 );
  99
 100 sub gitweb_check_feature {
 101         my ($name) = @_;
 102         return undef unless exists $feature{$name};
 103         my ($sub, $override, @defaults) = (
 104                 $feature{$name}{'sub'},
 105                 $feature{$name}{'override'},
 106                 @{$feature{$name}{'default'}});
 107         if (!$override) { return @defaults; }
 108         return $sub->(@defaults);
 109 }
 110
 111 # To enable system wide have in $GITWEB_CONFIG
 112 # $feature{'blame'}{'default'} = [1];
 113 # To have project specific config enable override in $GITWEB_CONFIG
 114 # $feature{'blame'}{'override'} = 1;
 115 # and in project config gitweb.blame = 0|1;
 116
 117 sub feature_blame {
 118         my ($val) = git_get_project_config('blame', '--bool');
 119
 120         if ($val eq 'true') {
 121                 return 1;
 122         } elsif ($val eq 'false') {
 123                 return 0;
 124         }
 125
 126         return $_[0];
 127 }
 128
 129 # To disable system wide have in $GITWEB_CONFIG
 130 # $feature{'snapshot'}{'default'} = [undef];
 131 # To have project specific config enable override in $GITWEB_CONFIG
 132 # $feature{'blame'}{'override'} = 1;
 133 # and in project config  gitweb.snapshot = none|gzip|bzip2
 134
 135 sub feature_snapshot {
 136         my ($ctype, $suffix, $command) = @_;
 137
 138         my ($val) = git_get_project_config('snapshot');
 139
 140         if ($val eq 'gzip') {
 141                 return ('x-gzip', 'gz', 'gzip');
 142         } elsif ($val eq 'bzip2') {
 143                 return ('x-bzip2', 'bz2', 'bzip2');
 144         } elsif ($val eq 'none') {
 145                 return ();
 146         }
 147
 148         return ($ctype, $suffix, $command);
 149 }
 150
 151 # To enable system wide have in $GITWEB_CONFIG
 152 # $feature{'pickaxe'}{'default'} = [1];
 153 # To have project specific config enable override in $GITWEB_CONFIG
 154 # $feature{'pickaxe'}{'override'} = 1;
 155 # and in project config gitweb.pickaxe = 0|1;
 156
 157 sub feature_pickaxe {
 158         my ($val) = git_get_project_config('pickaxe', '--bool');
 159
 160         if ($val eq 'true') {
 161                 return (1);
 162         } elsif ($val eq 'false') {
 163                 return (0);
 164         }
 165
 166         return ($_[0]);
 167 }
 168
 169 # rename detection options for git-diff and git-diff-tree
 170 # - default is '-M', with the cost proportional to
 171 #   (number of removed files) * (number of new files).
 172 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 173 #   (number of changed files + number of removed files) * (number of new files)
 174 # - even more costly is '-C', '--find-copies-harder' with cost
 175 #   (number of files in the original tree) * (number of new files)
 176 # - one might want to include '-B' option, e.g. '-B', '-M'
 177 our @diff_opts = ('-M'); # taken from git_commit
 178
 179 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 180 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 181
 182 # version of the core git binary
 183 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 184
 185 # path to the current git repository
 186 our $git_dir;
 187
 188 $projects_list ||= $projectroot;
 189
 190 # ======================================================================
 191 # input validation and dispatch
 192 our $action = $cgi->param('a');
 193 if (defined $action) {
 194         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 195                 die_error(undef, "Invalid action parameter");
 196         }
 197 }
 198
 199 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
 200 if (defined $project) {
 201         $project =~ s|^/||;
 202         $project =~ s|/$||;
 203         $project = undef unless $project;
 204 }
 205 if (defined $project) {
 206         if (!validate_input($project)) {
 207                 die_error(undef, "Invalid project parameter");
 208         }
 209         if (!(-d "$projectroot/$project")) {
 210                 die_error(undef, "No such directory");
 211         }
 212         if (!(-e "$projectroot/$project/HEAD")) {
 213                 die_error(undef, "No such project");
 214         }
 215         $git_dir = "$projectroot/$project";
 216 }
 217
 218 our $file_name = $cgi->param('f');
 219 if (defined $file_name) {
 220         if (!validate_input($file_name)) {
 221                 die_error(undef, "Invalid file parameter");
 222         }
 223 }
 224
 225 our $file_parent = $cgi->param('fp');
 226 if (defined $file_parent) {
 227         if (!validate_input($file_parent)) {
 228                 die_error(undef, "Invalid file parent parameter");
 229         }
 230 }
 231
 232 our $hash = $cgi->param('h');
 233 if (defined $hash) {
 234         if (!validate_input($hash)) {
 235                 die_error(undef, "Invalid hash parameter");
 236         }
 237 }
 238
 239 our $hash_parent = $cgi->param('hp');
 240 if (defined $hash_parent) {
 241         if (!validate_input($hash_parent)) {
 242                 die_error(undef, "Invalid hash parent parameter");
 243         }
 244 }
 245
 246 our $hash_base = $cgi->param('hb');
 247 if (defined $hash_base) {
 248         if (!validate_input($hash_base)) {
 249                 die_error(undef, "Invalid hash base parameter");
 250         }
 251 }
 252
 253 our $hash_parent_base = $cgi->param('hpb');
 254 if (defined $hash_parent_base) {
 255         if (!validate_input($hash_parent_base)) {
 256                 die_error(undef, "Invalid hash parent base parameter");
 257         }
 258 }
 259
 260 our $page = $cgi->param('pg');
 261 if (defined $page) {
 262         if ($page =~ m/[^0-9]$/) {
 263                 die_error(undef, "Invalid page parameter");
 264         }
 265 }
 266
 267 our $searchtext = $cgi->param('s');
 268 if (defined $searchtext) {
 269         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 270                 die_error(undef, "Invalid search parameter");
 271         }
 272         $searchtext = quotemeta $searchtext;
 273 }
 274
 275 # dispatch
 276 my %actions = (
 277         "blame" => \&git_blame2,
 278         "blobdiff" => \&git_blobdiff,
 279         "blobdiff_plain" => \&git_blobdiff_plain,
 280         "blob" => \&git_blob,
 281         "blob_plain" => \&git_blob_plain,
 282         "commitdiff" => \&git_commitdiff,
 283         "commitdiff_plain" => \&git_commitdiff_plain,
 284         "commit" => \&git_commit,
 285         "heads" => \&git_heads,
 286         "history" => \&git_history,
 287         "log" => \&git_log,
 288         "rss" => \&git_rss,
 289         "search" => \&git_search,
 290         "shortlog" => \&git_shortlog,
 291         "summary" => \&git_summary,
 292         "tag" => \&git_tag,
 293         "tags" => \&git_tags,
 294         "tree" => \&git_tree,
 295         "snapshot" => \&git_snapshot,
 296         # those below don't need $project
 297         "opml" => \&git_opml,
 298         "project_list" => \&git_project_list,
 299         "project_index" => \&git_project_index,
 300 );
 301
 302 if (defined $project) {
 303         $action ||= 'summary';
 304 } else {
 305         $action ||= 'project_list';
 306 }
 307 if (!defined($actions{$action})) {
 308         die_error(undef, "Unknown action");
 309 }
 310 $actions{$action}->();
 311 exit;
 312
 313 ## ======================================================================
 314 ## action links
 315
 316 sub href(%) {
 317         my %params = @_;
 318
 319         my @mapping = (
 320                 project => "p",
 321                 action => "a",
 322                 file_name => "f",
 323                 file_parent => "fp",
 324                 hash => "h",
 325                 hash_parent => "hp",
 326                 hash_base => "hb",
 327                 hash_parent_base => "hpb",
 328                 page => "pg",
 329                 order => "o",
 330                 searchtext => "s",
 331         );
 332         my %mapping = @mapping;
 333
 334         $params{'project'} = $project unless exists $params{'project'};
 335
 336         my @result = ();
 337         for (my $i = 0; $i < @mapping; $i += 2) {
 338                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 339                 if (defined $params{$name}) {
 340                         push @result, $symbol . "=" . esc_param($params{$name});
 341                 }
 342         }
 343         return "$my_uri?" . join(';', @result);
 344 }
 345
 346
 347 ## ======================================================================
 348 ## validation, quoting/unquoting and escaping
 349
 350 sub validate_input {
 351         my $input = shift;
 352
 353         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 354                 return $input;
 355         }
 356         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 357                 return undef;
 358         }
 359         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 360                 return undef;
 361         }
 362         return $input;
 363 }
 364
 365 # quote unsafe chars, but keep the slash, even when it's not
 366 # correct, but quoted slashes look too horrible in bookmarks
 367 sub esc_param {
 368         my $str = shift;
 369         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 370         $str =~ s/\+/%2B/g;
 371         $str =~ s/ /\+/g;
 372         return $str;
 373 }
 374
 375 # replace invalid utf8 character with SUBSTITUTION sequence
 376 sub esc_html {
 377         my $str = shift;
 378         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 379         $str = escapeHTML($str);
 380         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 381         return $str;
 382 }
 383
 384 # git may return quoted and escaped filenames
 385 sub unquote {
 386         my $str = shift;
 387         if ($str =~ m/^"(.*)"$/) {
 388                 $str = $1;
 389                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 390         }
 391         return $str;
 392 }
 393
 394 # escape tabs (convert tabs to spaces)
 395 sub untabify {
 396         my $line = shift;
 397
 398         while ((my $pos = index($line, "\t")) != -1) {
 399                 if (my $count = (8 - ($pos % 8))) {
 400                         my $spaces = ' ' x $count;
 401                         $line =~ s/\t/$spaces/;
 402                 }
 403         }
 404
 405         return $line;
 406 }
 407
 408 ## ----------------------------------------------------------------------
 409 ## HTML aware string manipulation
 410
 411 sub chop_str {
 412         my $str = shift;
 413         my $len = shift;
 414         my $add_len = shift || 10;
 415
 416         # allow only $len chars, but don't cut a word if it would fit in $add_len
 417         # if it doesn't fit, cut it if it's still longer than the dots we would add
 418         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 419         my $body = $1;
 420         my $tail = $2;
 421         if (length($tail) > 4) {
 422                 $tail = " ...";
 423                 $body =~ s/&[^;]*$//; # remove chopped character entities
 424         }
 425         return "$body$tail";
 426 }
 427
 428 ## ----------------------------------------------------------------------
 429 ## functions returning short strings
 430
 431 # CSS class for given age value (in seconds)
 432 sub age_class {
 433         my $age = shift;
 434
 435         if ($age < 60*60*2) {
 436                 return "age0";
 437         } elsif ($age < 60*60*24*2) {
 438                 return "age1";
 439         } else {
 440                 return "age2";
 441         }
 442 }
 443
 444 # convert age in seconds to "nn units ago" string
 445 sub age_string {
 446         my $age = shift;
 447         my $age_str;
 448
 449         if ($age > 60*60*24*365*2) {
 450                 $age_str = (int $age/60/60/24/365);
 451                 $age_str .= " years ago";
 452         } elsif ($age > 60*60*24*(365/12)*2) {
 453                 $age_str = int $age/60/60/24/(365/12);
 454                 $age_str .= " months ago";
 455         } elsif ($age > 60*60*24*7*2) {
 456                 $age_str = int $age/60/60/24/7;
 457                 $age_str .= " weeks ago";
 458         } elsif ($age > 60*60*24*2) {
 459                 $age_str = int $age/60/60/24;
 460                 $age_str .= " days ago";
 461         } elsif ($age > 60*60*2) {
 462                 $age_str = int $age/60/60;
 463                 $age_str .= " hours ago";
 464         } elsif ($age > 60*2) {
 465                 $age_str = int $age/60;
 466                 $age_str .= " min ago";
 467         } elsif ($age > 2) {
 468                 $age_str = int $age;
 469                 $age_str .= " sec ago";
 470         } else {
 471                 $age_str .= " right now";
 472         }
 473         return $age_str;
 474 }
 475
 476 # convert file mode in octal to symbolic file mode string
 477 sub mode_str {
 478         my $mode = oct shift;
 479
 480         if (S_ISDIR($mode & S_IFMT)) {
 481                 return 'drwxr-xr-x';
 482         } elsif (S_ISLNK($mode)) {
 483                 return 'lrwxrwxrwx';
 484         } elsif (S_ISREG($mode)) {
 485                 # git cares only about the executable bit
 486                 if ($mode & S_IXUSR) {
 487                         return '-rwxr-xr-x';
 488                 } else {
 489                         return '-rw-r--r--';
 490                 };
 491         } else {
 492                 return '----------';
 493         }
 494 }
 495
 496 # convert file mode in octal to file type string
 497 sub file_type {
 498         my $mode = shift;
 499
 500         if ($mode !~ m/^[0-7]+$/) {
 501                 return $mode;
 502         } else {
 503                 $mode = oct $mode;
 504         }
 505
 506         if (S_ISDIR($mode & S_IFMT)) {
 507                 return "directory";
 508         } elsif (S_ISLNK($mode)) {
 509                 return "symlink";
 510         } elsif (S_ISREG($mode)) {
 511                 return "file";
 512         } else {
 513                 return "unknown";
 514         }
 515 }
 516
 517 ## ----------------------------------------------------------------------
 518 ## functions returning short HTML fragments, or transforming HTML fragments
 519 ## which don't beling to other sections
 520
 521 # format line of commit message or tag comment
 522 sub format_log_line_html {
 523         my $line = shift;
 524
 525         $line = esc_html($line);
 526         $line =~ s/ /&nbsp;/g;
 527         if ($line =~ m/([0-9a-fA-F]{40})/) {
 528                 my $hash_text = $1;
 529                 if (git_get_type($hash_text) eq "commit") {
 530                         my $link =
 531                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 532                                         -class => "text"}, $hash_text);
 533                         $line =~ s/$hash_text/$link/;
 534                 }
 535         }
 536         return $line;
 537 }
 538
 539 # format marker of refs pointing to given object
 540 sub format_ref_marker {
 541         my ($refs, $id) = @_;
 542         my $markers = '';
 543
 544         if (defined $refs->{$id}) {
 545                 foreach my $ref (@{$refs->{$id}}) {
 546                         my ($type, $name) = qw();
 547                         # e.g. tags/v2.6.11 or heads/next
 548                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 549                                 $type = $1;
 550                                 $name = $2;
 551                         } else {
 552                                 $type = "ref";
 553                                 $name = $ref;
 554                         }
 555
 556                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 557                 }
 558         }
 559
 560         if ($markers) {
 561                 return ' <span class="refs">'. $markers . '</span>';
 562         } else {
 563                 return "";
 564         }
 565 }
 566
 567 # format, perhaps shortened and with markers, title line
 568 sub format_subject_html {
 569         my ($long, $short, $href, $extra) = @_;
 570         $extra = '' unless defined($extra);
 571
 572         if (length($short) < length($long)) {
 573                 return $cgi->a({-href => $href, -class => "list subject",
 574                                 -title => $long},
 575                        esc_html($short) . $extra);
 576         } else {
 577                 return $cgi->a({-href => $href, -class => "list subject"},
 578                        esc_html($long)  . $extra);
 579         }
 580 }
 581
 582 sub format_diff_line {
 583         my $line = shift;
 584         my $char = substr($line, 0, 1);
 585         my $diff_class = "";
 586
 587         chomp $line;
 588
 589         if ($char eq '+') {
 590                 $diff_class = " add";
 591         } elsif ($char eq "-") {
 592                 $diff_class = " rem";
 593         } elsif ($char eq "@") {
 594                 $diff_class = " chunk_header";
 595         } elsif ($char eq "\\") {
 596                 $diff_class = " incomplete";
 597         }
 598         $line = untabify($line);
 599         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 600 }
 601
 602 ## ----------------------------------------------------------------------
 603 ## git utility subroutines, invoking git commands
 604
 605 # returns path to the core git executable and the --git-dir parameter as list
 606 sub git_cmd {
 607         return $GIT, '--git-dir='.$git_dir;
 608 }
 609
 610 # returns path to the core git executable and the --git-dir parameter as string
 611 sub git_cmd_str {
 612         return join(' ', git_cmd());
 613 }
 614
 615 # get HEAD ref of given project as hash
 616 sub git_get_head_hash {
 617         my $project = shift;
 618         my $o_git_dir = $git_dir;
 619         my $retval = undef;
 620         $git_dir = "$projectroot/$project";
 621         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 622                 my $head = <$fd>;
 623                 close $fd;
 624                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 625                         $retval = $1;
 626                 }
 627         }
 628         if (defined $o_git_dir) {
 629                 $git_dir = $o_git_dir;
 630         }
 631         return $retval;
 632 }
 633
 634 # get type of given object
 635 sub git_get_type {
 636         my $hash = shift;
 637
 638         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 639         my $type = <$fd>;
 640         close $fd or return;
 641         chomp $type;
 642         return $type;
 643 }
 644
 645 sub git_get_project_config {
 646         my ($key, $type) = @_;
 647
 648         return unless ($key);
 649         $key =~ s/^gitweb\.//;
 650         return if ($key =~ m/\W/);
 651
 652         my @x = (git_cmd(), 'repo-config');
 653         if (defined $type) { push @x, $type; }
 654         push @x, "--get";
 655         push @x, "gitweb.$key";
 656         my $val = qx(@x);
 657         chomp $val;
 658         return ($val);
 659 }
 660
 661 # get hash of given path at given ref
 662 sub git_get_hash_by_path {
 663         my $base = shift;
 664         my $path = shift || return undef;
 665
 666         my $tree = $base;
 667
 668         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 669                 or die_error(undef, "Open git-ls-tree failed");
 670         my $line = <$fd>;
 671         close $fd or return undef;
 672
 673         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 674         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 675         return $3;
 676 }
 677
 678 ## ......................................................................
 679 ## git utility functions, directly accessing git repository
 680
 681 sub git_get_project_description {
 682         my $path = shift;
 683
 684         open my $fd, "$projectroot/$path/description" or return undef;
 685         my $descr = <$fd>;
 686         close $fd;
 687         chomp $descr;
 688         return $descr;
 689 }
 690
 691 sub git_get_project_url_list {
 692         my $path = shift;
 693
 694         open my $fd, "$projectroot/$path/cloneurl" or return undef;
 695         my @git_project_url_list = map { chomp; $_ } <$fd>;
 696         close $fd;
 697
 698         return wantarray ? @git_project_url_list : \@git_project_url_list;
 699 }
 700
 701 sub git_get_projects_list {
 702         my @list;
 703
 704         if (-d $projects_list) {
 705                 # search in directory
 706                 my $dir = $projects_list;
 707                 my $pfxlen = length("$dir");
 708
 709                 File::Find::find({
 710                         follow_fast => 1, # follow symbolic links
 711                         dangling_symlinks => 0, # ignore dangling symlinks, silently
 712                         wanted => sub {
 713                                 # skip project-list toplevel, if we get it.
 714                                 return if (m!^[/.]$!);
 715                                 # only directories can be git repositories
 716                                 return unless (-d $_);
 717
 718                                 my $subdir = substr($File::Find::name, $pfxlen + 1);
 719                                 # we check related file in $projectroot
 720                                 if (-e "$projectroot/$subdir/HEAD") {
 721                                         push @list, { path => $subdir };
 722                                         $File::Find::prune = 1;
 723                                 }
 724                         },
 725                 }, "$dir");
 726
 727         } elsif (-f $projects_list) {
 728                 # read from file(url-encoded):
 729                 # 'git%2Fgit.git Linus+Torvalds'
 730                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 731                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 732                 open my ($fd), $projects_list or return undef;
 733                 while (my $line = <$fd>) {
 734                         chomp $line;
 735                         my ($path, $owner) = split ' ', $line;
 736                         $path = unescape($path);
 737                         $owner = unescape($owner);
 738                         if (!defined $path) {
 739                                 next;
 740                         }
 741                         if (-e "$projectroot/$path/HEAD") {
 742                                 my $pr = {
 743                                         path => $path,
 744                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 745                                 };
 746                                 push @list, $pr
 747                         }
 748                 }
 749                 close $fd;
 750         }
 751         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 752         return @list;
 753 }
 754
 755 sub git_get_project_owner {
 756         my $project = shift;
 757         my $owner;
 758
 759         return undef unless $project;
 760
 761         # read from file (url-encoded):
 762         # 'git%2Fgit.git Linus+Torvalds'
 763         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 764         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 765         if (-f $projects_list) {
 766                 open (my $fd , $projects_list);
 767                 while (my $line = <$fd>) {
 768                         chomp $line;
 769                         my ($pr, $ow) = split ' ', $line;
 770                         $pr = unescape($pr);
 771                         $ow = unescape($ow);
 772                         if ($pr eq $project) {
 773                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 774                                 last;
 775                         }
 776                 }
 777                 close $fd;
 778         }
 779         if (!defined $owner) {
 780                 $owner = get_file_owner("$projectroot/$project");
 781         }
 782
 783         return $owner;
 784 }
 785
 786 sub git_get_references {
 787         my $type = shift || "";
 788         my %refs;
 789         my $fd;
 790         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 791         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 792         if (-f "$projectroot/$project/info/refs") {
 793                 open $fd, "$projectroot/$project/info/refs"
 794                         or return;
 795         } else {
 796                 open $fd, "-|", git_cmd(), "ls-remote", "."
 797                         or return;
 798         }
 799
 800         while (my $line = <$fd>) {
 801                 chomp $line;
 802                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 803                         if (defined $refs{$1}) {
 804                                 push @{$refs{$1}}, $2;
 805                         } else {
 806                                 $refs{$1} = [ $2 ];
 807                         }
 808                 }
 809         }
 810         close $fd or return;
 811         return \%refs;
 812 }
 813
 814 sub git_get_rev_name_tags {
 815         my $hash = shift || return undef;
 816
 817         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 818                 or return;
 819         my $name_rev = <$fd>;
 820         close $fd;
 821
 822         if ($name_rev =~ m|^$hash tags/(.*)$|) {
 823                 return $1;
 824         } else {
 825                 # catches also '$hash undefined' output
 826                 return undef;
 827         }
 828 }
 829
 830 ## ----------------------------------------------------------------------
 831 ## parse to hash functions
 832
 833 sub parse_date {
 834         my $epoch = shift;
 835         my $tz = shift || "-0000";
 836
 837         my %date;
 838         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 839         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 840         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 841         $date{'hour'} = $hour;
 842         $date{'minute'} = $min;
 843         $date{'mday'} = $mday;
 844         $date{'day'} = $days[$wday];
 845         $date{'month'} = $months[$mon];
 846         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 847                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 848         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 849                              $mday, $months[$mon], $hour ,$min;
 850
 851         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 852         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 853         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 854         $date{'hour_local'} = $hour;
 855         $date{'minute_local'} = $min;
 856         $date{'tz_local'} = $tz;
 857         return %date;
 858 }
 859
 860 sub parse_tag {
 861         my $tag_id = shift;
 862         my %tag;
 863         my @comment;
 864
 865         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 866         $tag{'id'} = $tag_id;
 867         while (my $line = <$fd>) {
 868                 chomp $line;
 869                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 870                         $tag{'object'} = $1;
 871                 } elsif ($line =~ m/^type (.+)$/) {
 872                         $tag{'type'} = $1;
 873                 } elsif ($line =~ m/^tag (.+)$/) {
 874                         $tag{'name'} = $1;
 875                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 876                         $tag{'author'} = $1;
 877                         $tag{'epoch'} = $2;
 878                         $tag{'tz'} = $3;
 879                 } elsif ($line =~ m/--BEGIN/) {
 880                         push @comment, $line;
 881                         last;
 882                 } elsif ($line eq "") {
 883                         last;
 884                 }
 885         }
 886         push @comment, <$fd>;
 887         $tag{'comment'} = \@comment;
 888         close $fd or return;
 889         if (!defined $tag{'name'}) {
 890                 return
 891         };
 892         return %tag
 893 }
 894
 895 sub parse_commit {
 896         my $commit_id = shift;
 897         my $commit_text = shift;
 898
 899         my @commit_lines;
 900         my %co;
 901
 902         if (defined $commit_text) {
 903                 @commit_lines = @$commit_text;
 904         } else {
 905                 $/ = "\0";
 906                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
 907                         or return;
 908                 @commit_lines = split '\n', <$fd>;
 909                 close $fd or return;
 910                 $/ = "\n";
 911                 pop @commit_lines;
 912         }
 913         my $header = shift @commit_lines;
 914         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 915                 return;
 916         }
 917         ($co{'id'}, my @parents) = split ' ', $header;
 918         $co{'parents'} = \@parents;
 919         $co{'parent'} = $parents[0];
 920         while (my $line = shift @commit_lines) {
 921                 last if $line eq "\n";
 922                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 923                         $co{'tree'} = $1;
 924                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 925                         $co{'author'} = $1;
 926                         $co{'author_epoch'} = $2;
 927                         $co{'author_tz'} = $3;
 928                         if ($co{'author'} =~ m/^([^<]+) </) {
 929                                 $co{'author_name'} = $1;
 930                         } else {
 931                                 $co{'author_name'} = $co{'author'};
 932                         }
 933                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 934                         $co{'committer'} = $1;
 935                         $co{'committer_epoch'} = $2;
 936                         $co{'committer_tz'} = $3;
 937                         $co{'committer_name'} = $co{'committer'};
 938                         $co{'committer_name'} =~ s/ <.*//;
 939                 }
 940         }
 941         if (!defined $co{'tree'}) {
 942                 return;
 943         };
 944
 945         foreach my $title (@commit_lines) {
 946                 $title =~ s/^    //;
 947                 if ($title ne "") {
 948                         $co{'title'} = chop_str($title, 80, 5);
 949                         # remove leading stuff of merges to make the interesting part visible
 950                         if (length($title) > 50) {
 951                                 $title =~ s/^Automatic //;
 952                                 $title =~ s/^merge (of|with) /Merge ... /i;
 953                                 if (length($title) > 50) {
 954                                         $title =~ s/(http|rsync):\/\///;
 955                                 }
 956                                 if (length($title) > 50) {
 957                                         $title =~ s/(master|www|rsync)\.//;
 958                                 }
 959                                 if (length($title) > 50) {
 960                                         $title =~ s/kernel.org:?//;
 961                                 }
 962                                 if (length($title) > 50) {
 963                                         $title =~ s/\/pub\/scm//;
 964                                 }
 965                         }
 966                         $co{'title_short'} = chop_str($title, 50, 5);
 967                         last;
 968                 }
 969         }
 970         # remove added spaces
 971         foreach my $line (@commit_lines) {
 972                 $line =~ s/^    //;
 973         }
 974         $co{'comment'} = \@commit_lines;
 975
 976         my $age = time - $co{'committer_epoch'};
 977         $co{'age'} = $age;
 978         $co{'age_string'} = age_string($age);
 979         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 980         if ($age > 60*60*24*7*2) {
 981                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 982                 $co{'age_string_age'} = $co{'age_string'};
 983         } else {
 984                 $co{'age_string_date'} = $co{'age_string'};
 985                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 986         }
 987         return %co;
 988 }
 989
 990 # parse ref from ref_file, given by ref_id, with given type
 991 sub parse_ref {
 992         my $ref_file = shift;
 993         my $ref_id = shift;
 994         my $type = shift || git_get_type($ref_id);
 995         my %ref_item;
 996
 997         $ref_item{'type'} = $type;
 998         $ref_item{'id'} = $ref_id;
 999         $ref_item{'epoch'} = 0;
1000         $ref_item{'age'} = "unknown";
1001         if ($type eq "tag") {
1002                 my %tag = parse_tag($ref_id);
1003                 $ref_item{'comment'} = $tag{'comment'};
1004                 if ($tag{'type'} eq "commit") {
1005                         my %co = parse_commit($tag{'object'});
1006                         $ref_item{'epoch'} = $co{'committer_epoch'};
1007                         $ref_item{'age'} = $co{'age_string'};
1008                 } elsif (defined($tag{'epoch'})) {
1009                         my $age = time - $tag{'epoch'};
1010                         $ref_item{'epoch'} = $tag{'epoch'};
1011                         $ref_item{'age'} = age_string($age);
1012                 }
1013                 $ref_item{'reftype'} = $tag{'type'};
1014                 $ref_item{'name'} = $tag{'name'};
1015                 $ref_item{'refid'} = $tag{'object'};
1016         } elsif ($type eq "commit"){
1017                 my %co = parse_commit($ref_id);
1018                 $ref_item{'reftype'} = "commit";
1019                 $ref_item{'name'} = $ref_file;
1020                 $ref_item{'title'} = $co{'title'};
1021                 $ref_item{'refid'} = $ref_id;
1022                 $ref_item{'epoch'} = $co{'committer_epoch'};
1023                 $ref_item{'age'} = $co{'age_string'};
1024         } else {
1025                 $ref_item{'reftype'} = $type;
1026                 $ref_item{'name'} = $ref_file;
1027                 $ref_item{'refid'} = $ref_id;
1028         }
1029
1030         return %ref_item;
1031 }
1032
1033 # parse line of git-diff-tree "raw" output
1034 sub parse_difftree_raw_line {
1035         my $line = shift;
1036         my %res;
1037
1038         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1039         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1040         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1041                 $res{'from_mode'} = $1;
1042                 $res{'to_mode'} = $2;
1043                 $res{'from_id'} = $3;
1044                 $res{'to_id'} = $4;
1045                 $res{'status'} = $5;
1046                 $res{'similarity'} = $6;
1047                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1048                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1049                 } else {
1050                         $res{'file'} = unquote($7);
1051                 }
1052         }
1053         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1054         elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1055                 $res{'commit'} = $1;
1056         }
1057
1058         return wantarray ? %res : \%res;
1059 }
1060
1061 # parse line of git-ls-tree output
1062 sub parse_ls_tree_line ($;%) {
1063         my $line = shift;
1064         my %opts = @_;
1065         my %res;
1066
1067         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1068         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1069
1070         $res{'mode'} = $1;
1071         $res{'type'} = $2;
1072         $res{'hash'} = $3;
1073         if ($opts{'-z'}) {
1074                 $res{'name'} = $4;
1075         } else {
1076                 $res{'name'} = unquote($4);
1077         }
1078
1079         return wantarray ? %res : \%res;
1080 }
1081
1082 ## ......................................................................
1083 ## parse to array of hashes functions
1084
1085 sub git_get_refs_list {
1086         my $ref_dir = shift;
1087         my @reflist;
1088
1089         my @refs;
1090         open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1091                 or return;
1092         while (my $line = <$fd>) {
1093                 chomp $line;
1094                 if ($line =~ m/^([0-9a-fA-F]{40})\t$ref_dir\/?([^\^]+)$/) {
1095                         push @refs, { hash => $1, name => $2 };
1096                 } elsif ($line =~ m/^[0-9a-fA-F]{40}\t$ref_dir\/?(.*)\^\{\}$/ &&
1097                          $1 eq $refs[-1]{'name'}) {
1098                         # most likely a tag is followed by its peeled
1099                         # (deref) one, and when that happens we know the
1100                         # previous one was of type 'tag'.
1101                         $refs[-1]{'type'} = "tag";
1102                 }
1103         }
1104         close $fd;
1105
1106         foreach my $ref (@refs) {
1107                 my $ref_file = $ref->{'name'};
1108                 my $ref_id   = $ref->{'hash'};
1109
1110                 my $type = $ref->{'type'} || git_get_type($ref_id) || next;
1111                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1112
1113                 push @reflist, \%ref_item;
1114         }
1115         # sort refs by age
1116         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1117         return \@reflist;
1118 }
1119
1120 ## ----------------------------------------------------------------------
1121 ## filesystem-related functions
1122
1123 sub get_file_owner {
1124         my $path = shift;
1125
1126         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1127         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1128         if (!defined $gcos) {
1129                 return undef;
1130         }
1131         my $owner = $gcos;
1132         $owner =~ s/[,;].*$//;
1133         return decode("utf8", $owner, Encode::FB_DEFAULT);
1134 }
1135
1136 ## ......................................................................
1137 ## mimetype related functions
1138
1139 sub mimetype_guess_file {
1140         my $filename = shift;
1141         my $mimemap = shift;
1142         -r $mimemap or return undef;
1143
1144         my %mimemap;
1145         open(MIME, $mimemap) or return undef;
1146         while (<MIME>) {
1147                 next if m/^#/; # skip comments
1148                 my ($mime, $exts) = split(/\t+/);
1149                 if (defined $exts) {
1150                         my @exts = split(/\s+/, $exts);
1151                         foreach my $ext (@exts) {
1152                                 $mimemap{$ext} = $mime;
1153                         }
1154                 }
1155         }
1156         close(MIME);
1157
1158         $filename =~ /\.(.*?)$/;
1159         return $mimemap{$1};
1160 }
1161
1162 sub mimetype_guess {
1163         my $filename = shift;
1164         my $mime;
1165         $filename =~ /\./ or return undef;
1166
1167         if ($mimetypes_file) {
1168                 my $file = $mimetypes_file;
1169                 if ($file !~ m!^/!) { # if it is relative path
1170                         # it is relative to project
1171                         $file = "$projectroot/$project/$file";
1172                 }
1173                 $mime = mimetype_guess_file($filename, $file);
1174         }
1175         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1176         return $mime;
1177 }
1178
1179 sub blob_mimetype {
1180         my $fd = shift;
1181         my $filename = shift;
1182
1183         if ($filename) {
1184                 my $mime = mimetype_guess($filename);
1185                 $mime and return $mime;
1186         }
1187
1188         # just in case
1189         return $default_blob_plain_mimetype unless $fd;
1190
1191         if (-T $fd) {
1192                 return 'text/plain' .
1193                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1194         } elsif (! $filename) {
1195                 return 'application/octet-stream';
1196         } elsif ($filename =~ m/\.png$/i) {
1197                 return 'image/png';
1198         } elsif ($filename =~ m/\.gif$/i) {
1199                 return 'image/gif';
1200         } elsif ($filename =~ m/\.jpe?g$/i) {
1201                 return 'image/jpeg';
1202         } else {
1203                 return 'application/octet-stream';
1204         }
1205 }
1206
1207 ## ======================================================================
1208 ## functions printing HTML: header, footer, error page
1209
1210 sub git_header_html {
1211         my $status = shift || "200 OK";
1212         my $expires = shift;
1213
1214         my $title = "$site_name git";
1215         if (defined $project) {
1216                 $title .= " - $project";
1217                 if (defined $action) {
1218                         $title .= "/$action";
1219                         if (defined $file_name) {
1220                                 $title .= " - $file_name";
1221                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1222                                         $title .= "/";
1223                                 }
1224                         }
1225                 }
1226         }
1227         my $content_type;
1228         # require explicit support from the UA if we are to send the page as
1229         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1230         # we have to do this because MSIE sometimes globs '*/*', pretending to
1231         # support xhtml+xml but choking when it gets what it asked for.
1232         if (defined $cgi->http('HTTP_ACCEPT') &&
1233             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1234             $cgi->Accept('application/xhtml+xml') != 0) {
1235                 $content_type = 'application/xhtml+xml';
1236         } else {
1237                 $content_type = 'text/html';
1238         }
1239         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1240                            -status=> $status, -expires => $expires);
1241         print <<EOF;
1242 <?xml version="1.0" encoding="utf-8"?>
1243 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1244 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1245 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1246 <!-- git core binaries version $git_version -->
1247 <head>
1248 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1249 <meta name="generator" content="gitweb/$version git/$git_version"/>
1250 <meta name="robots" content="index, nofollow"/>
1251 <title>$title</title>
1252 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
1253 EOF
1254         if (defined $project) {
1255                 printf('<link rel="alternate" title="%s log" '.
1256                        'href="%s" type="application/rss+xml"/>'."\n",
1257                        esc_param($project), href(action=>"rss"));
1258         }
1259         if (defined $favicon) {
1260                 print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1261         }
1262
1263         print "</head>\n" .
1264               "<body>\n" .
1265               "<div class=\"page_header\">\n" .
1266               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1267               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1268               "</a>\n";
1269         print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1270         if (defined $project) {
1271                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1272                 if (defined $action) {
1273                         print " / $action";
1274                 }
1275                 print "\n";
1276                 if (!defined $searchtext) {
1277                         $searchtext = "";
1278                 }
1279                 my $search_hash;
1280                 if (defined $hash_base) {
1281                         $search_hash = $hash_base;
1282                 } elsif (defined $hash) {
1283                         $search_hash = $hash;
1284                 } else {
1285                         $search_hash = "HEAD";
1286                 }
1287                 $cgi->param("a", "search");
1288                 $cgi->param("h", $search_hash);
1289                 print $cgi->startform(-method => "get", -action => $my_uri) .
1290                       "<div class=\"search\">\n" .
1291                       $cgi->hidden(-name => "p") . "\n" .
1292                       $cgi->hidden(-name => "a") . "\n" .
1293                       $cgi->hidden(-name => "h") . "\n" .
1294                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1295                       "</div>" .
1296                       $cgi->end_form() . "\n";
1297         }
1298         print "</div>\n";
1299 }
1300
1301 sub git_footer_html {
1302         print "<div class=\"page_footer\">\n";
1303         if (defined $project) {
1304                 my $descr = git_get_project_description($project);
1305                 if (defined $descr) {
1306                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1307                 }
1308                 print $cgi->a({-href => href(action=>"rss"),
1309                               -class => "rss_logo"}, "RSS") . "\n";
1310         } else {
1311                 print $cgi->a({-href => href(project=>undef, action=>"opml"),
1312                               -class => "rss_logo"}, "OPML") . "\n";
1313         }
1314         print "</div>\n" .
1315               "</body>\n" .
1316               "</html>";
1317 }
1318
1319 sub die_error {
1320         my $status = shift || "403 Forbidden";
1321         my $error = shift || "Malformed query, file missing or permission denied";
1322
1323         git_header_html($status);
1324         print <<EOF;
1325 <div class="page_body">
1326 <br /><br />
1327 $status - $error
1328 <br />
1329 </div>
1330 EOF
1331         git_footer_html();
1332         exit;
1333 }
1334
1335 ## ----------------------------------------------------------------------
1336 ## functions printing or outputting HTML: navigation
1337
1338 sub git_print_page_nav {
1339         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1340         $extra = '' if !defined $extra; # pager or formats
1341
1342         my @navs = qw(summary shortlog log commit commitdiff tree);
1343         if ($suppress) {
1344                 @navs = grep { $_ ne $suppress } @navs;
1345         }
1346
1347         my %arg = map { $_ => {action=>$_} } @navs;
1348         if (defined $head) {
1349                 for (qw(commit commitdiff)) {
1350                         $arg{$_}{hash} = $head;
1351                 }
1352                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1353                         for (qw(shortlog log)) {
1354                                 $arg{$_}{hash} = $head;
1355                         }
1356                 }
1357         }
1358         $arg{tree}{hash} = $treehead if defined $treehead;
1359         $arg{tree}{hash_base} = $treebase if defined $treebase;
1360
1361         print "<div class=\"page_nav\">\n" .
1362                 (join " | ",
1363                  map { $_ eq $current ?
1364                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1365                  } @navs);
1366         print "<br/>\n$extra<br/>\n" .
1367               "</div>\n";
1368 }
1369
1370 sub format_paging_nav {
1371         my ($action, $hash, $head, $page, $nrevs) = @_;
1372         my $paging_nav;
1373
1374
1375         if ($hash ne $head || $page) {
1376                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1377         } else {
1378                 $paging_nav .= "HEAD";
1379         }
1380
1381         if ($page > 0) {
1382                 $paging_nav .= " &sdot; " .
1383                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1384                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1385         } else {
1386                 $paging_nav .= " &sdot; prev";
1387         }
1388
1389         if ($nrevs >= (100 * ($page+1)-1)) {
1390                 $paging_nav .= " &sdot; " .
1391                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1392                                  -accesskey => "n", -title => "Alt-n"}, "next");
1393         } else {
1394                 $paging_nav .= " &sdot; next";
1395         }
1396
1397         return $paging_nav;
1398 }
1399
1400 ## ......................................................................
1401 ## functions printing or outputting HTML: div
1402
1403 sub git_print_header_div {
1404         my ($action, $title, $hash, $hash_base) = @_;
1405         my %args = ();
1406
1407         $args{action} = $action;
1408         $args{hash} = $hash if $hash;
1409         $args{hash_base} = $hash_base if $hash_base;
1410
1411         print "<div class=\"header\">\n" .
1412               $cgi->a({-href => href(%args), -class => "title"},
1413               $title ? $title : $action) .
1414               "\n</div>\n";
1415 }
1416
1417 #sub git_print_authorship (\%) {
1418 sub git_print_authorship {
1419         my $co = shift;
1420
1421         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1422         print "<div class=\"author_date\">" .
1423               esc_html($co->{'author_name'}) .
1424               " [$ad{'rfc2822'}";
1425         if ($ad{'hour_local'} < 6) {
1426                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1427                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1428         } else {
1429                 printf(" (%02d:%02d %s)",
1430                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1431         }
1432         print "]</div>\n";
1433 }
1434
1435 sub git_print_page_path {
1436         my $name = shift;
1437         my $type = shift;
1438         my $hb = shift;
1439
1440         if (!defined $name) {
1441                 print "<div class=\"page_path\">/</div>\n";
1442         } else {
1443                 my @dirname = split '/', $name;
1444                 my $basename = pop @dirname;
1445                 my $fullname = '';
1446
1447                 print "<div class=\"page_path\">";
1448                 foreach my $dir (@dirname) {
1449                         $fullname .= $dir . '/';
1450                         print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1451                                                      hash_base=>$hb),
1452                                       -title => $fullname}, esc_html($dir));
1453                         print "/";
1454                 }
1455                 if (defined $type && $type eq 'blob') {
1456                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1457                                                      hash_base=>$hb),
1458                                       -title => $name}, esc_html($basename));
1459                 } elsif (defined $type && $type eq 'tree') {
1460                         print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1461                                                      hash_base=>$hb),
1462                                       -title => $name}, esc_html($basename));
1463                         print "/";
1464                 } else {
1465                         print esc_html($basename);
1466                 }
1467                 print "<br/></div>\n";
1468         }
1469 }
1470
1471 # sub git_print_log (\@;%) {
1472 sub git_print_log ($;%) {
1473         my $log = shift;
1474         my %opts = @_;
1475
1476         if ($opts{'-remove_title'}) {
1477                 # remove title, i.e. first line of log
1478                 shift @$log;
1479         }
1480         # remove leading empty lines
1481         while (defined $log->[0] && $log->[0] eq "") {
1482                 shift @$log;
1483         }
1484
1485         # print log
1486         my $signoff = 0;
1487         my $empty = 0;
1488         foreach my $line (@$log) {
1489                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1490                         $signoff = 1;
1491                         $empty = 0;
1492                         if (! $opts{'-remove_signoff'}) {
1493                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1494                                 next;
1495                         } else {
1496                                 # remove signoff lines
1497                                 next;
1498                         }
1499                 } else {
1500                         $signoff = 0;
1501                 }
1502
1503                 # print only one empty line
1504                 # do not print empty line after signoff
1505                 if ($line eq "") {
1506                         next if ($empty || $signoff);
1507                         $empty = 1;
1508                 } else {
1509                         $empty = 0;
1510                 }
1511
1512                 print format_log_line_html($line) . "<br/>\n";
1513         }
1514
1515         if ($opts{'-final_empty_line'}) {
1516                 # end with single empty line
1517                 print "<br/>\n" unless $empty;
1518         }
1519 }
1520
1521 sub git_print_simplified_log {
1522         my $log = shift;
1523         my $remove_title = shift;
1524
1525         git_print_log($log,
1526                 -final_empty_line=> 1,
1527                 -remove_title => $remove_title);
1528 }
1529
1530 # print tree entry (row of git_tree), but without encompassing <tr> element
1531 sub git_print_tree_entry {
1532         my ($t, $basedir, $hash_base, $have_blame) = @_;
1533
1534         my %base_key = ();
1535         $base_key{hash_base} = $hash_base if defined $hash_base;
1536
1537         print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1538         if ($t->{'type'} eq "blob") {
1539                 print "<td class=\"list\">" .
1540                       $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1541                                              file_name=>"$basedir$t->{'name'}", %base_key),
1542                               -class => "list"}, esc_html($t->{'name'})) .
1543                       "</td>\n" .
1544                       "<td class=\"link\">" .
1545                       $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1546                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1547                               "blob");
1548                 if ($have_blame) {
1549                         print " | " .
1550                                 $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1551                                                        file_name=>"$basedir$t->{'name'}", %base_key)},
1552                                         "blame");
1553                 }
1554                 if (defined $hash_base) {
1555                         print " | " .
1556                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1557                                                      hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1558                                       "history");
1559                 }
1560                 print " | " .
1561                       $cgi->a({-href => href(action=>"blob_plain",
1562                                              hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1563                               "raw") .
1564                       "</td>\n";
1565
1566         } elsif ($t->{'type'} eq "tree") {
1567                 print "<td class=\"list\">" .
1568                       $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1569                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1570                               esc_html($t->{'name'})) .
1571                       "</td>\n" .
1572                       "<td class=\"link\">" .
1573                       $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1574                                              file_name=>"$basedir$t->{'name'}", %base_key)},
1575                               "tree");
1576                 if (defined $hash_base) {
1577                         print " | " .
1578                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1579                                                      file_name=>"$basedir$t->{'name'}")},
1580                                       "history");
1581                 }
1582                 print "</td>\n";
1583         }
1584 }
1585
1586 ## ......................................................................
1587 ## functions printing large fragments of HTML
1588
1589 sub git_difftree_body {
1590         my ($difftree, $hash, $parent) = @_;
1591
1592         print "<div class=\"list_head\">\n";
1593         if ($#{$difftree} > 10) {
1594                 print(($#{$difftree} + 1) . " files changed:\n");
1595         }
1596         print "</div>\n";
1597
1598         print "<table class=\"diff_tree\">\n";
1599         my $alternate = 0;
1600         my $patchno = 0;
1601         foreach my $line (@{$difftree}) {
1602                 my %diff = parse_difftree_raw_line($line);
1603
1604                 if ($alternate) {
1605                         print "<tr class=\"dark\">\n";
1606                 } else {
1607                         print "<tr class=\"light\">\n";
1608                 }
1609                 $alternate ^= 1;
1610
1611                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1612                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1613                 if ($diff{'to_mode'} ne ('0' x 6)) {
1614                         $to_mode_oct = oct $diff{'to_mode'};
1615                         if (S_ISREG($to_mode_oct)) { # only for regular file
1616                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1617                         }
1618                         $to_file_type = file_type($diff{'to_mode'});
1619                 }
1620                 if ($diff{'from_mode'} ne ('0' x 6)) {
1621                         $from_mode_oct = oct $diff{'from_mode'};
1622                         if (S_ISREG($to_mode_oct)) { # only for regular file
1623                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1624                         }
1625                         $from_file_type = file_type($diff{'from_mode'});
1626                 }
1627
1628                 if ($diff{'status'} eq "A") { # created
1629                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1630                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1631                         $mode_chng   .= "]</span>";
1632                         print "<td>" .
1633                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1634                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1635                                       -class => "list"}, esc_html($diff{'file'})) .
1636                               "</td>\n" .
1637                               "<td>$mode_chng</td>\n" .
1638                               "<td class=\"link\">" .
1639                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1640                                                      hash_base=>$hash, file_name=>$diff{'file'})},
1641                                       "blob");
1642                         if ($action eq 'commitdiff') {
1643                                 # link to patch
1644                                 $patchno++;
1645                                 print " | " .
1646                                       $cgi->a({-href => "#patch$patchno"}, "patch");
1647                         }
1648                         print "</td>\n";
1649
1650                 } elsif ($diff{'status'} eq "D") { # deleted
1651                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1652                         print "<td>" .
1653                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1654                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1655                                        -class => "list"}, esc_html($diff{'file'})) .
1656                               "</td>\n" .
1657                               "<td>$mode_chng</td>\n" .
1658                               "<td class=\"link\">" .
1659                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1660                                                      hash_base=>$parent, file_name=>$diff{'file'})},
1661                                       "blob") .
1662                               " | ";
1663                         if ($action eq 'commitdiff') {
1664                                 # link to patch
1665                                 $patchno++;
1666                                 print " | " .
1667                                       $cgi->a({-href => "#patch$patchno"}, "patch");
1668                         }
1669                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1670                                                      file_name=>$diff{'file'})},
1671                                       "history") .
1672                               "</td>\n";
1673
1674                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1675                         my $mode_chnge = "";
1676                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1677                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1678                                 if ($from_file_type != $to_file_type) {
1679                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1680                                 }
1681                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1682                                         if ($from_mode_str && $to_mode_str) {
1683                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1684                                         } elsif ($to_mode_str) {
1685                                                 $mode_chnge .= " mode: $to_mode_str";
1686                                         }
1687                                 }
1688                                 $mode_chnge .= "]</span>\n";
1689                         }
1690                         print "<td>";
1691                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1692                                 print $cgi->a({-href => href(action=>"blobdiff",
1693                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1694                                                              hash_base=>$hash, hash_parent_base=>$parent,
1695                                                              file_name=>$diff{'file'}),
1696                                               -class => "list"}, esc_html($diff{'file'}));
1697                         } else { # only mode changed
1698                                 print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1699                                                              hash_base=>$hash, file_name=>$diff{'file'}),
1700                                               -class => "list"}, esc_html($diff{'file'}));
1701                         }
1702                         print "</td>\n" .
1703                               "<td>$mode_chnge</td>\n" .
1704                               "<td class=\"link\">" .
1705                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1706                                                      hash_base=>$hash, file_name=>$diff{'file'})},
1707                                       "blob");
1708                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1709                                 if ($action eq 'commitdiff') {
1710                                         # link to patch
1711                                         $patchno++;
1712                                         print " | " .
1713                                                 $cgi->a({-href => "#patch$patchno"}, "patch");
1714                                 } else {
1715                                         print " | " .
1716                                                 $cgi->a({-href => href(action=>"blobdiff",
1717                                                                        hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1718                                                                        hash_base=>$hash, hash_parent_base=>$parent,
1719                                                                        file_name=>$diff{'file'})},
1720                                                         "diff");
1721                                 }
1722                         }
1723                         print " | " .
1724                                 $cgi->a({-href => href(action=>"history",
1725                                                        hash_base=>$hash, file_name=>$diff{'file'})},
1726                                         "history");
1727                         print "</td>\n";
1728
1729                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1730                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1731                         my $nstatus = $status_name{$diff{'status'}};
1732                         my $mode_chng = "";
1733                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1734                                 # mode also for directories, so we cannot use $to_mode_str
1735                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1736                         }
1737                         print "<td>" .
1738                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1739                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1740                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1741                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1742                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1743                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1744                                       -class => "list"}, esc_html($diff{'from_file'})) .
1745                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1746                               "<td class=\"link\">" .
1747                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1748                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
1749                                       "blob");
1750                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1751                                 if ($action eq 'commitdiff') {
1752                                         # link to patch
1753                                         $patchno++;
1754                                         print " | " .
1755                                                 $cgi->a({-href => "#patch$patchno"}, "patch");
1756                                 } else {
1757                                         print " | " .
1758                                                 $cgi->a({-href => href(action=>"blobdiff",
1759                                                                        hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1760                                                                        hash_base=>$hash, hash_parent_base=>$parent,
1761                                                                        file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1762                                                         "diff");
1763                                 }
1764                         }
1765                         print "</td>\n";
1766
1767                 } # we should not encounter Unmerged (U) or Unknown (X) status
1768                 print "</tr>\n";
1769         }
1770         print "</table>\n";
1771 }
1772
1773 sub git_patchset_body {
1774         my ($fd, $difftree, $hash, $hash_parent) = @_;
1775
1776         my $patch_idx = 0;
1777         my $in_header = 0;
1778         my $patch_found = 0;
1779         my $diffinfo;
1780
1781         print "<div class=\"patchset\">\n";
1782
1783         LINE:
1784         while (my $patch_line = <$fd>) {
1785                 chomp $patch_line;
1786
1787                 if ($patch_line =~ m/^diff /) { # "git diff" header
1788                         # beginning of patch (in patchset)
1789                         if ($patch_found) {
1790                                 # close previous patch
1791                                 print "</div>\n"; # class="patch"
1792                         } else {
1793                                 # first patch in patchset
1794                                 $patch_found = 1;
1795                         }
1796                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1797
1798                         if (ref($difftree->[$patch_idx]) eq "HASH") {
1799                                 $diffinfo = $difftree->[$patch_idx];
1800                         } else {
1801                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1802                         }
1803                         $patch_idx++;
1804
1805                         # for now, no extended header, hence we skip empty patches
1806                         # companion to  next LINE if $in_header;
1807                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1808                                 $in_header = 1;
1809                                 next LINE;
1810                         }
1811
1812                         if ($diffinfo->{'status'} eq "A") { # added
1813                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1814                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1815                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1816                                               $diffinfo->{'to_id'}) . "(new)" .
1817                                       "</div>\n"; # class="diff_info"
1818
1819                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
1820                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1821                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1822                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1823                                               $diffinfo->{'from_id'}) . "(deleted)" .
1824                                       "</div>\n"; # class="diff_info"
1825
1826                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
1827                                  $diffinfo->{'status'} eq "C" || # copied
1828                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1829                                 print "<div class=\"diff_info\">" .
1830                                       file_type($diffinfo->{'from_mode'}) . ":" .
1831                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1832                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1833                                               $diffinfo->{'from_id'}) .
1834                                       " -> " .
1835                                       file_type($diffinfo->{'to_mode'}) . ":" .
1836                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1837                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1838                                               $diffinfo->{'to_id'});
1839                                 print "</div>\n"; # class="diff_info"
1840
1841                         } else { # modified, mode changed, ...
1842                                 print "<div class=\"diff_info\">" .
1843                                       file_type($diffinfo->{'from_mode'}) . ":" .
1844                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1845                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1846                                               $diffinfo->{'from_id'}) .
1847                                       " -> " .
1848                                       file_type($diffinfo->{'to_mode'}) . ":" .
1849                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1850                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1851                                               $diffinfo->{'to_id'});
1852                                 print "</div>\n"; # class="diff_info"
1853                         }
1854
1855                         #print "<div class=\"diff extended_header\">\n";
1856                         $in_header = 1;
1857                         next LINE;
1858                 } # start of patch in patchset
1859
1860
1861                 if ($in_header && $patch_line =~ m/^---/) {
1862                         #print "</div>\n"; # class="diff extended_header"
1863                         $in_header = 0;
1864
1865                         my $file = $diffinfo->{'from_file'};
1866                         $file  ||= $diffinfo->{'file'};
1867                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1868                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
1869                                         -class => "list"}, esc_html($file));
1870                         $patch_line =~ s|a/.*$|a/$file|g;
1871                         print "<div class=\"diff from_file\">$patch_line</div>\n";
1872
1873                         $patch_line = <$fd>;
1874                         chomp $patch_line;
1875
1876                         #$patch_line =~ m/^+++/;
1877                         $file    = $diffinfo->{'to_file'};
1878                         $file  ||= $diffinfo->{'file'};
1879                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1880                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
1881                                         -class => "list"}, esc_html($file));
1882                         $patch_line =~ s|b/.*|b/$file|g;
1883                         print "<div class=\"diff to_file\">$patch_line</div>\n";
1884
1885                         next LINE;
1886                 }
1887                 next LINE if $in_header;
1888
1889                 print format_diff_line($patch_line);
1890         }
1891         print "</div>\n" if $patch_found; # class="patch"
1892
1893         print "</div>\n"; # class="patchset"
1894 }
1895
1896 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1897
1898 sub git_shortlog_body {
1899         # uses global variable $project
1900         my ($revlist, $from, $to, $refs, $extra) = @_;
1901
1902         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
1903         my $have_snapshot = (defined $ctype && defined $suffix);
1904
1905         $from = 0 unless defined $from;
1906         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1907
1908         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1909         my $alternate = 0;
1910         for (my $i = $from; $i <= $to; $i++) {
1911                 my $commit = $revlist->[$i];
1912                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1913                 my $ref = format_ref_marker($refs, $commit);
1914                 my %co = parse_commit($commit);
1915                 if ($alternate) {
1916                         print "<tr class=\"dark\">\n";
1917                 } else {
1918                         print "<tr class=\"light\">\n";
1919                 }
1920                 $alternate ^= 1;
1921                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1922                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1923                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1924                       "<td>";
1925                 print format_subject_html($co{'title'}, $co{'title_short'},
1926                                           href(action=>"commit", hash=>$commit), $ref);
1927                 print "</td>\n" .
1928                       "<td class=\"link\">" .
1929                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1930                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
1931                 if ($have_snapshot) {
1932                         print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
1933                 }
1934                 print "</td>\n" .
1935                       "</tr>\n";
1936         }
1937         if (defined $extra) {
1938                 print "<tr>\n" .
1939                       "<td colspan=\"4\">$extra</td>\n" .
1940                       "</tr>\n";
1941         }
1942         print "</table>\n";
1943 }
1944
1945 sub git_history_body {
1946         # Warning: assumes constant type (blob or tree) during history
1947         my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
1948
1949         $from = 0 unless defined $from;
1950         $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
1951
1952         print "<table class=\"history\" cellspacing=\"0\">\n";
1953         my $alternate = 0;
1954         for (my $i = $from; $i <= $to; $i++) {
1955                 if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
1956                         next;
1957                 }
1958
1959                 my $commit = $1;
1960                 my %co = parse_commit($commit);
1961                 if (!%co) {
1962                         next;
1963                 }
1964
1965                 my $ref = format_ref_marker($refs, $commit);
1966
1967                 if ($alternate) {
1968                         print "<tr class=\"dark\">\n";
1969                 } else {
1970                         print "<tr class=\"light\">\n";
1971                 }
1972                 $alternate ^= 1;
1973                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1974                       # shortlog uses      chop_str($co{'author_name'}, 10)
1975                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
1976                       "<td>";
1977                 # originally git_history used chop_str($co{'title'}, 50)
1978                 print format_subject_html($co{'title'}, $co{'title_short'},
1979                                           href(action=>"commit", hash=>$commit), $ref);
1980                 print "</td>\n" .
1981                       "<td class=\"link\">" .
1982                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1983                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
1984                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
1985
1986                 if ($ftype eq 'blob') {
1987                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
1988                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
1989                         if (defined $blob_current && defined $blob_parent &&
1990                                         $blob_current ne $blob_parent) {
1991                                 print " | " .
1992                                         $cgi->a({-href => href(action=>"blobdiff",
1993                                                                hash=>$blob_current, hash_parent=>$blob_parent,
1994                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
1995                                                                file_name=>$file_name)},
1996                                                 "diff to current");
1997                         }
1998                 }
1999                 print "</td>\n" .
2000                       "</tr>\n";
2001         }
2002         if (defined $extra) {
2003                 print "<tr>\n" .
2004                       "<td colspan=\"4\">$extra</td>\n" .
2005                       "</tr>\n";
2006         }
2007         print "</table>\n";
2008 }
2009
2010 sub git_tags_body {
2011         # uses global variable $project
2012         my ($taglist, $from, $to, $extra) = @_;
2013         $from = 0 unless defined $from;
2014         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2015
2016         print "<table class=\"tags\" cellspacing=\"0\">\n";
2017         my $alternate = 0;
2018         for (my $i = $from; $i <= $to; $i++) {
2019                 my $entry = $taglist->[$i];
2020                 my %tag = %$entry;
2021                 my $comment_lines = $tag{'comment'};
2022                 my $comment = shift @$comment_lines;
2023                 my $comment_short;
2024                 if (defined $comment) {
2025                         $comment_short = chop_str($comment, 30, 5);
2026                 }
2027                 if ($alternate) {
2028                         print "<tr class=\"dark\">\n";
2029                 } else {
2030                         print "<tr class=\"light\">\n";
2031                 }
2032                 $alternate ^= 1;
2033                 print "<td><i>$tag{'age'}</i></td>\n" .
2034                       "<td>" .
2035                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2036                                -class => "list name"}, esc_html($tag{'name'})) .
2037                       "</td>\n" .
2038                       "<td>";
2039                 if (defined $comment) {
2040                         print format_subject_html($comment, $comment_short,
2041                                                   href(action=>"tag", hash=>$tag{'id'}));
2042                 }
2043                 print "</td>\n" .
2044                       "<td class=\"selflink\">";
2045                 if ($tag{'type'} eq "tag") {
2046                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2047                 } else {
2048                         print "&nbsp;";
2049                 }
2050                 print "</td>\n" .
2051                       "<td class=\"link\">" . " | " .
2052                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2053                 if ($tag{'reftype'} eq "commit") {
2054                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2055                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
2056                 } elsif ($tag{'reftype'} eq "blob") {
2057                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2058                 }
2059                 print "</td>\n" .
2060                       "</tr>";
2061         }
2062         if (defined $extra) {
2063                 print "<tr>\n" .
2064                       "<td colspan=\"5\">$extra</td>\n" .
2065                       "</tr>\n";
2066         }
2067         print "</table>\n";
2068 }
2069
2070 sub git_heads_body {
2071         # uses global variable $project
2072         my ($taglist, $head, $from, $to, $extra) = @_;
2073         $from = 0 unless defined $from;
2074         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2075
2076         print "<table class=\"heads\" cellspacing=\"0\">\n";
2077         my $alternate = 0;
2078         for (my $i = $from; $i <= $to; $i++) {
2079                 my $entry = $taglist->[$i];
2080                 my %tag = %$entry;
2081                 my $curr = $tag{'id'} eq $head;
2082                 if ($alternate) {
2083                         print "<tr class=\"dark\">\n";
2084                 } else {
2085                         print "<tr class=\"light\">\n";
2086                 }
2087                 $alternate ^= 1;
2088                 print "<td><i>$tag{'age'}</i></td>\n" .
2089                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
2090                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
2091                                -class => "list name"},esc_html($tag{'name'})) .
2092                       "</td>\n" .
2093                       "<td class=\"link\">" .
2094                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
2095                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
2096                       "</td>\n" .
2097                       "</tr>";
2098         }
2099         if (defined $extra) {
2100                 print "<tr>\n" .
2101                       "<td colspan=\"3\">$extra</td>\n" .
2102                       "</tr>\n";
2103         }
2104         print "</table>\n";
2105 }
2106
2107 ## ======================================================================
2108 ## ======================================================================
2109 ## actions
2110
2111 sub git_project_list {
2112         my $order = $cgi->param('o');
2113         if (defined $order && $order !~ m/project|descr|owner|age/) {
2114                 die_error(undef, "Unknown order parameter");
2115         }
2116
2117         my @list = git_get_projects_list();
2118         my @projects;
2119         if (!@list) {
2120                 die_error(undef, "No projects found");
2121         }
2122         foreach my $pr (@list) {
2123                 my $head = git_get_head_hash($pr->{'path'});
2124                 if (!defined $head) {
2125                         next;
2126                 }
2127                 $git_dir = "$projectroot/$pr->{'path'}";
2128                 my %co = parse_commit($head);
2129                 if (!%co) {
2130                         next;
2131                 }
2132                 $pr->{'commit'} = \%co;
2133                 if (!defined $pr->{'descr'}) {
2134                         my $descr = git_get_project_description($pr->{'path'}) || "";
2135                         $pr->{'descr'} = chop_str($descr, 25, 5);
2136                 }
2137                 if (!defined $pr->{'owner'}) {
2138                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2139                 }
2140                 push @projects, $pr;
2141         }
2142
2143         git_header_html();
2144         if (-f $home_text) {
2145                 print "<div class=\"index_include\">\n";
2146                 open (my $fd, $home_text);
2147                 print <$fd>;
2148                 close $fd;
2149                 print "</div>\n";
2150         }
2151         print "<table class=\"project_list\">\n" .
2152               "<tr>\n";
2153         $order ||= "project";
2154         if ($order eq "project") {
2155                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2156                 print "<th>Project</th>\n";
2157         } else {
2158                 print "<th>" .
2159                       $cgi->a({-href => href(project=>undef, order=>'project'),
2160                                -class => "header"}, "Project") .
2161                       "</th>\n";
2162         }
2163         if ($order eq "descr") {
2164                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2165                 print "<th>Description</th>\n";
2166         } else {
2167                 print "<th>" .
2168                       $cgi->a({-href => href(project=>undef, order=>'descr'),
2169                                -class => "header"}, "Description") .
2170                       "</th>\n";
2171         }
2172         if ($order eq "owner") {
2173                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2174                 print "<th>Owner</th>\n";
2175         } else {
2176                 print "<th>" .
2177                       $cgi->a({-href => href(project=>undef, order=>'owner'),
2178                                -class => "header"}, "Owner") .
2179                       "</th>\n";
2180         }
2181         if ($order eq "age") {
2182                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2183                 print "<th>Last Change</th>\n";
2184         } else {
2185                 print "<th>" .
2186                       $cgi->a({-href => href(project=>undef, order=>'age'),
2187                                -class => "header"}, "Last Change") .
2188                       "</th>\n";
2189         }
2190         print "<th></th>\n" .
2191               "</tr>\n";
2192         my $alternate = 0;
2193         foreach my $pr (@projects) {
2194                 if ($alternate) {
2195                         print "<tr class=\"dark\">\n";
2196                 } else {
2197                         print "<tr class=\"light\">\n";
2198                 }
2199                 $alternate ^= 1;
2200                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2201                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2202                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2203                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2204                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2205                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2206                       "<td class=\"link\">" .
2207                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2208                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2209                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
2210                       "</td>\n" .
2211                       "</tr>\n";
2212         }
2213         print "</table>\n";
2214         git_footer_html();
2215 }
2216
2217 sub git_project_index {
2218         my @projects = git_get_projects_list();
2219
2220         print $cgi->header(
2221                 -type => 'text/plain',
2222                 -charset => 'utf-8',
2223                 -content_disposition => qq(inline; filename="index.aux"));
2224
2225         foreach my $pr (@projects) {
2226                 if (!exists $pr->{'owner'}) {
2227                         $pr->{'owner'} = get_file_owner("$projectroot/$project");
2228                 }
2229
2230                 my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2231                 # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2232                 $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2233                 $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2234                 $path  =~ s/ /\+/g;
2235                 $owner =~ s/ /\+/g;
2236
2237                 print "$path $owner\n";
2238         }
2239 }
2240
2241 sub git_summary {
2242         my $descr = git_get_project_description($project) || "none";
2243         my $head = git_get_head_hash($project);
2244         my %co = parse_commit($head);
2245         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2246
2247         my $owner = git_get_project_owner($project);
2248
2249         my $refs = git_get_references();
2250         git_header_html();
2251         git_print_page_nav('summary','', $head);
2252
2253         print "<div class=\"title\">&nbsp;</div>\n";
2254         print "<table cellspacing=\"0\">\n" .
2255               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2256               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2257               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2258         # use per project git URL list in $projectroot/$project/cloneurl
2259         # or make project git URL from git base URL and project name
2260         my $url_tag = "URL";
2261         my @url_list = git_get_project_url_list($project);
2262         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2263         foreach my $git_url (@url_list) {
2264                 next unless $git_url;
2265                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2266                 $url_tag = "";
2267         }
2268         print "</table>\n";
2269
2270         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2271                 git_get_head_hash($project)
2272                 or die_error(undef, "Open git-rev-list failed");
2273         my @revlist = map { chomp; $_ } <$fd>;
2274         close $fd;
2275         git_print_header_div('shortlog');
2276         git_shortlog_body(\@revlist, 0, 15, $refs,
2277                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2278
2279         my $taglist = git_get_refs_list("refs/tags");
2280         if (defined @$taglist) {
2281                 git_print_header_div('tags');
2282                 git_tags_body($taglist, 0, 15,
2283                               $cgi->a({-href => href(action=>"tags")}, "..."));
2284         }
2285
2286         my $headlist = git_get_refs_list("refs/heads");
2287         if (defined @$headlist) {
2288                 git_print_header_div('heads');
2289                 git_heads_body($headlist, $head, 0, 15,
2290                                $cgi->a({-href => href(action=>"heads")}, "..."));
2291         }
2292
2293         git_footer_html();
2294 }
2295
2296 sub git_tag {
2297         my $head = git_get_head_hash($project);
2298         git_header_html();
2299         git_print_page_nav('','', $head,undef,$head);
2300         my %tag = parse_tag($hash);
2301         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2302         print "<div class=\"title_text\">\n" .
2303               "<table cellspacing=\"0\">\n" .
2304               "<tr>\n" .
2305               "<td>object</td>\n" .
2306               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2307                                $tag{'object'}) . "</td>\n" .
2308               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2309                                               $tag{'type'}) . "</td>\n" .
2310               "</tr>\n";
2311         if (defined($tag{'author'})) {
2312                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2313                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2314                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2315                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2316                         "</td></tr>\n";
2317         }
2318         print "</table>\n\n" .
2319               "</div>\n";
2320         print "<div class=\"page_body\">";
2321         my $comment = $tag{'comment'};
2322         foreach my $line (@$comment) {
2323                 print esc_html($line) . "<br/>\n";
2324         }
2325         print "</div>\n";
2326         git_footer_html();
2327 }
2328
2329 sub git_blame2 {
2330         my $fd;
2331         my $ftype;
2332
2333         my ($have_blame) = gitweb_check_feature('blame');
2334         if (!$have_blame) {
2335                 die_error('403 Permission denied', "Permission denied");
2336         }
2337         die_error('404 Not Found', "File name not defined") if (!$file_name);
2338         $hash_base ||= git_get_head_hash($project);
2339         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2340         my %co = parse_commit($hash_base)
2341                 or die_error(undef, "Reading commit failed");
2342         if (!defined $hash) {
2343                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2344                         or die_error(undef, "Error looking up file");
2345         }
2346         $ftype = git_get_type($hash);
2347         if ($ftype !~ "blob") {
2348                 die_error("400 Bad Request", "Object is not a blob");
2349         }
2350         open ($fd, "-|", git_cmd(), "blame", '-l', $file_name, $hash_base)
2351                 or die_error(undef, "Open git-blame failed");
2352         git_header_html();
2353         my $formats_nav =
2354                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2355                         "blob") .
2356                 " | " .
2357                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2358                         "head");
2359         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2360         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2361         git_print_page_path($file_name, $ftype, $hash_base);
2362         my @rev_color = (qw(light2 dark2));
2363         my $num_colors = scalar(@rev_color);
2364         my $current_color = 0;
2365         my $last_rev;
2366         print <<HTML;
2367 <div class="page_body">
2368 <table class="blame">
2369 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2370 HTML
2371         while (<$fd>) {
2372                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2373                 my $full_rev = $1;
2374                 my $rev = substr($full_rev, 0, 8);
2375                 my $lineno = $2;
2376                 my $data = $3;
2377
2378                 if (!defined $last_rev) {
2379                         $last_rev = $full_rev;
2380                 } elsif ($last_rev ne $full_rev) {
2381                         $last_rev = $full_rev;
2382                         $current_color = ++$current_color % $num_colors;
2383                 }
2384                 print "<tr class=\"$rev_color[$current_color]\">\n";
2385                 print "<td class=\"sha1\">" .
2386                         $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2387                                 esc_html($rev)) . "</td>\n";
2388                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2389                       esc_html($lineno) . "</a></td>\n";
2390                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2391                 print "</tr>\n";
2392         }
2393         print "</table>\n";
2394         print "</div>";
2395         close $fd
2396                 or print "Reading blob failed\n";
2397         git_footer_html();
2398 }
2399
2400 sub git_blame {
2401         my $fd;
2402
2403         my ($have_blame) = gitweb_check_feature('blame');
2404         if (!$have_blame) {
2405                 die_error('403 Permission denied', "Permission denied");
2406         }
2407         die_error('404 Not Found', "File name not defined") if (!$file_name);
2408         $hash_base ||= git_get_head_hash($project);
2409         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2410         my %co = parse_commit($hash_base)
2411                 or die_error(undef, "Reading commit failed");
2412         if (!defined $hash) {
2413                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2414                         or die_error(undef, "Error lookup file");
2415         }
2416         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2417                 or die_error(undef, "Open git-annotate failed");
2418         git_header_html();
2419         my $formats_nav =
2420                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2421                         "blob") .
2422                 " | " .
2423                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2424                         "head");
2425         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2426         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2427         git_print_page_path($file_name, 'blob', $hash_base);
2428         print "<div class=\"page_body\">\n";
2429         print <<HTML;
2430 <table class="blame">
2431   <tr>
2432     <th>Commit</th>
2433     <th>Age</th>
2434     <th>Author</th>
2435     <th>Line</th>
2436     <th>Data</th>
2437   </tr>
2438 HTML
2439         my @line_class = (qw(light dark));
2440         my $line_class_len = scalar (@line_class);
2441         my $line_class_num = $#line_class;
2442         while (my $line = <$fd>) {
2443                 my $long_rev;
2444                 my $short_rev;
2445                 my $author;
2446                 my $time;
2447                 my $lineno;
2448                 my $data;
2449                 my $age;
2450                 my $age_str;
2451                 my $age_class;
2452
2453                 chomp $line;
2454                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2455
2456                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2457                         $long_rev = $1;
2458                         $author   = $2;
2459                         $time     = $3;
2460                         $lineno   = $4;
2461                         $data     = $5;
2462                 } else {
2463                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2464                         next;
2465                 }
2466                 $short_rev  = substr ($long_rev, 0, 8);
2467                 $age        = time () - $time;
2468                 $age_str    = age_string ($age);
2469                 $age_str    =~ s/ /&nbsp;/g;
2470                 $age_class  = age_class($age);
2471                 $author     = esc_html ($author);
2472                 $author     =~ s/ /&nbsp;/g;
2473
2474                 $data = untabify($data);
2475                 $data = esc_html ($data);
2476
2477                 print <<HTML;
2478   <tr class="$line_class[$line_class_num]">
2479     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2480     <td class="$age_class">$age_str</td>
2481     <td>$author</td>
2482     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2483     <td class="pre">$data</td>
2484   </tr>
2485 HTML
2486         } # while (my $line = <$fd>)
2487         print "</table>\n\n";
2488         close $fd
2489                 or print "Reading blob failed.\n";
2490         print "</div>";
2491         git_footer_html();
2492 }
2493
2494 sub git_tags {
2495         my $head = git_get_head_hash($project);
2496         git_header_html();
2497         git_print_page_nav('','', $head,undef,$head);
2498         git_print_header_div('summary', $project);
2499
2500         my $taglist = git_get_refs_list("refs/tags");
2501         if (defined @$taglist) {
2502                 git_tags_body($taglist);
2503         }
2504         git_footer_html();
2505 }
2506
2507 sub git_heads {
2508         my $head = git_get_head_hash($project);
2509         git_header_html();
2510         git_print_page_nav('','', $head,undef,$head);
2511         git_print_header_div('summary', $project);
2512
2513         my $taglist = git_get_refs_list("refs/heads");
2514         if (defined @$taglist) {
2515                 git_heads_body($taglist, $head);
2516         }
2517         git_footer_html();
2518 }
2519
2520 sub git_blob_plain {
2521         # blobs defined by non-textual hash id's can be cached
2522         my $expires;
2523         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2524                 $expires = "+1d";
2525         }
2526
2527         if (!defined $hash) {
2528                 if (defined $file_name) {
2529                         my $base = $hash_base || git_get_head_hash($project);
2530                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2531                                 or die_error(undef, "Error lookup file");
2532                 } else {
2533                         die_error(undef, "No file name defined");
2534                 }
2535         }
2536         my $type = shift;
2537         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2538                 or die_error(undef, "Couldn't cat $file_name, $hash");
2539
2540         $type ||= blob_mimetype($fd, $file_name);
2541
2542         # save as filename, even when no $file_name is given
2543         my $save_as = "$hash";
2544         if (defined $file_name) {
2545                 $save_as = $file_name;
2546         } elsif ($type =~ m/^text\//) {
2547                 $save_as .= '.txt';
2548         }
2549
2550         print $cgi->header(
2551                 -type => "$type",
2552                 -expires=>$expires,
2553                 -content_disposition => "inline; filename=\"$save_as\"");
2554         undef $/;
2555         binmode STDOUT, ':raw';
2556         print <$fd>;
2557         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2558         $/ = "\n";
2559         close $fd;
2560 }
2561
2562 sub git_blob {
2563         # blobs defined by non-textual hash id's can be cached
2564         my $expires;
2565         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2566                 $expires = "+1d";
2567         }
2568
2569         if (!defined $hash) {
2570                 if (defined $file_name) {
2571                         my $base = $hash_base || git_get_head_hash($project);
2572                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2573                                 or die_error(undef, "Error lookup file");
2574                 } else {
2575                         die_error(undef, "No file name defined");
2576                 }
2577         }
2578         my ($have_blame) = gitweb_check_feature('blame');
2579         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2580                 or die_error(undef, "Couldn't cat $file_name, $hash");
2581         my $mimetype = blob_mimetype($fd, $file_name);
2582         if ($mimetype !~ m/^text\//) {
2583                 close $fd;
2584                 return git_blob_plain($mimetype);
2585         }
2586         git_header_html(undef, $expires);
2587         my $formats_nav = '';
2588         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2589                 if (defined $file_name) {
2590                         if ($have_blame) {
2591                                 $formats_nav .=
2592                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2593                                                                hash=>$hash, file_name=>$file_name)},
2594                                                 "blame") .
2595                                         " | ";
2596                         }
2597                         $formats_nav .=
2598                                 $cgi->a({-href => href(action=>"blob_plain",
2599                                                        hash=>$hash, file_name=>$file_name)},
2600                                         "plain") .
2601                                 " | " .
2602                                 $cgi->a({-href => href(action=>"blob",
2603                                                        hash_base=>"HEAD", file_name=>$file_name)},
2604                                         "head");
2605                 } else {
2606                         $formats_nav .=
2607                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2608                 }
2609                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2610                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2611         } else {
2612                 print "<div class=\"page_nav\">\n" .
2613                       "<br/><br/></div>\n" .
2614                       "<div class=\"title\">$hash</div>\n";
2615         }
2616         git_print_page_path($file_name, "blob", $hash_base);
2617         print "<div class=\"page_body\">\n";
2618         my $nr;
2619         while (my $line = <$fd>) {
2620                 chomp $line;
2621                 $nr++;
2622                 $line = untabify($line);
2623                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2624                        $nr, $nr, $nr, esc_html($line);
2625         }
2626         close $fd
2627                 or print "Reading blob failed.\n";
2628         print "</div>";
2629         git_footer_html();
2630 }
2631
2632 sub git_tree {
2633         if (!defined $hash) {
2634                 $hash = git_get_head_hash($project);
2635                 if (defined $file_name) {
2636                         my $base = $hash_base || $hash;
2637                         $hash = git_get_hash_by_path($base, $file_name, "tree");
2638                 }
2639                 if (!defined $hash_base) {
2640                         $hash_base = $hash;
2641                 }
2642         }
2643         $/ = "\0";
2644         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2645                 or die_error(undef, "Open git-ls-tree failed");
2646         my @entries = map { chomp; $_ } <$fd>;
2647         close $fd or die_error(undef, "Reading tree failed");
2648         $/ = "\n";
2649
2650         my $refs = git_get_references();
2651         my $ref = format_ref_marker($refs, $hash_base);
2652         git_header_html();
2653         my $base = "";
2654         my ($have_blame) = gitweb_check_feature('blame');
2655         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2656                 git_print_page_nav('tree','', $hash_base);
2657                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2658         } else {
2659                 undef $hash_base;
2660                 print "<div class=\"page_nav\">\n";
2661                 print "<br/><br/></div>\n";
2662                 print "<div class=\"title\">$hash</div>\n";
2663         }
2664         if (defined $file_name) {
2665                 $base = esc_html("$file_name/");
2666         }
2667         git_print_page_path($file_name, 'tree', $hash_base);
2668         print "<div class=\"page_body\">\n";
2669         print "<table cellspacing=\"0\">\n";
2670         my $alternate = 0;
2671         foreach my $line (@entries) {
2672                 my %t = parse_ls_tree_line($line, -z => 1);
2673
2674                 if ($alternate) {
2675                         print "<tr class=\"dark\">\n";
2676                 } else {
2677                         print "<tr class=\"light\">\n";
2678                 }
2679                 $alternate ^= 1;
2680
2681                 git_print_tree_entry(\%t, $base, $hash_base, $have_blame);
2682
2683                 print "</tr>\n";
2684         }
2685         print "</table>\n" .
2686               "</div>";
2687         git_footer_html();
2688 }
2689
2690 sub git_snapshot {
2691
2692         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2693         my $have_snapshot = (defined $ctype && defined $suffix);
2694         if (!$have_snapshot) {
2695                 die_error('403 Permission denied', "Permission denied");
2696         }
2697
2698         if (!defined $hash) {
2699                 $hash = git_get_head_hash($project);
2700         }
2701
2702         my $filename = basename($project) . "-$hash.tar.$suffix";
2703
2704         print $cgi->header(-type => 'application/x-tar',
2705                            -content_encoding => $ctype,
2706                            -content_disposition => "inline; filename=\"$filename\"",
2707                            -status => '200 OK');
2708
2709         my $git_command = git_cmd_str();
2710         open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2711                 die_error(undef, "Execute git-tar-tree failed.");
2712         binmode STDOUT, ':raw';
2713         print <$fd>;
2714         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2715         close $fd;
2716
2717 }
2718
2719 sub git_log {
2720         my $head = git_get_head_hash($project);
2721         if (!defined $hash) {
2722                 $hash = $head;
2723         }
2724         if (!defined $page) {
2725                 $page = 0;
2726         }
2727         my $refs = git_get_references();
2728
2729         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2730         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2731                 or die_error(undef, "Open git-rev-list failed");
2732         my @revlist = map { chomp; $_ } <$fd>;
2733         close $fd;
2734
2735         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2736
2737         git_header_html();
2738         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2739
2740         if (!@revlist) {
2741                 my %co = parse_commit($hash);
2742
2743                 git_print_header_div('summary', $project);
2744                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2745         }
2746         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2747                 my $commit = $revlist[$i];
2748                 my $ref = format_ref_marker($refs, $commit);
2749                 my %co = parse_commit($commit);
2750                 next if !%co;
2751                 my %ad = parse_date($co{'author_epoch'});
2752                 git_print_header_div('commit',
2753                                "<span class=\"age\">$co{'age_string'}</span>" .
2754                                esc_html($co{'title'}) . $ref,
2755                                $commit);
2756                 print "<div class=\"title_text\">\n" .
2757                       "<div class=\"log_link\">\n" .
2758                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2759                       " | " .
2760                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2761                       "<br/>\n" .
2762                       "</div>\n" .
2763                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2764                       "</div>\n";
2765
2766                 print "<div class=\"log_body\">\n";
2767                 git_print_simplified_log($co{'comment'});
2768                 print "</div>\n";
2769         }
2770         git_footer_html();
2771 }
2772
2773 sub git_commit {
2774         my %co = parse_commit($hash);
2775         if (!%co) {
2776                 die_error(undef, "Unknown commit object");
2777         }
2778         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2779         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2780
2781         my $parent = $co{'parent'};
2782         if (!defined $parent) {
2783                 $parent = "--root";
2784         }
2785         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2786                 or die_error(undef, "Open git-diff-tree failed");
2787         my @difftree = map { chomp; $_ } <$fd>;
2788         close $fd or die_error(undef, "Reading git-diff-tree failed");
2789
2790         # non-textual hash id's can be cached
2791         my $expires;
2792         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2793                 $expires = "+1d";
2794         }
2795         my $refs = git_get_references();
2796         my $ref = format_ref_marker($refs, $co{'id'});
2797
2798         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2799         my $have_snapshot = (defined $ctype && defined $suffix);
2800
2801         my $formats_nav = '';
2802         if (defined $file_name && defined $co{'parent'}) {
2803                 my $parent = $co{'parent'};
2804                 $formats_nav .=
2805                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2806                                 "blame");
2807         }
2808         git_header_html(undef, $expires);
2809         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2810                            $hash, $co{'tree'}, $hash,
2811                            $formats_nav);
2812
2813         if (defined $co{'parent'}) {
2814                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2815         } else {
2816                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2817         }
2818         print "<div class=\"title_text\">\n" .
2819               "<table cellspacing=\"0\">\n";
2820         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2821               "<tr>" .
2822               "<td></td><td> $ad{'rfc2822'}";
2823         if ($ad{'hour_local'} < 6) {
2824                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2825                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2826         } else {
2827                 printf(" (%02d:%02d %s)",
2828                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2829         }
2830         print "</td>" .
2831               "</tr>\n";
2832         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2833         print "<tr><td></td><td> $cd{'rfc2822'}" .
2834               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2835               "</td></tr>\n";
2836         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2837         print "<tr>" .
2838               "<td>tree</td>" .
2839               "<td class=\"sha1\">" .
2840               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2841                        class => "list"}, $co{'tree'}) .
2842               "</td>" .
2843               "<td class=\"link\">" .
2844               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2845                       "tree");
2846         if ($have_snapshot) {
2847                 print " | " .
2848                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2849         }
2850         print "</td>" .
2851               "</tr>\n";
2852         my $parents = $co{'parents'};
2853         foreach my $par (@$parents) {
2854                 print "<tr>" .
2855                       "<td>parent</td>" .
2856                       "<td class=\"sha1\">" .
2857                       $cgi->a({-href => href(action=>"commit", hash=>$par),
2858                                class => "list"}, $par) .
2859                       "</td>" .
2860                       "<td class=\"link\">" .
2861                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2862                       " | " .
2863                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
2864                       "</td>" .
2865                       "</tr>\n";
2866         }
2867         print "</table>".
2868               "</div>\n";
2869
2870         print "<div class=\"page_body\">\n";
2871         git_print_log($co{'comment'});
2872         print "</div>\n";
2873
2874         git_difftree_body(\@difftree, $hash, $parent);
2875
2876         git_footer_html();
2877 }
2878
2879 sub git_blobdiff {
2880         my $format = shift || 'html';
2881
2882         my $fd;
2883         my @difftree;
2884         my %diffinfo;
2885         my $expires;
2886
2887         # preparing $fd and %diffinfo for git_patchset_body
2888         # new style URI
2889         if (defined $hash_base && defined $hash_parent_base) {
2890                 if (defined $file_name) {
2891                         # read raw output
2892                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
2893                                 "--", $file_name
2894                                 or die_error(undef, "Open git-diff-tree failed");
2895                         @difftree = map { chomp; $_ } <$fd>;
2896                         close $fd
2897                                 or die_error(undef, "Reading git-diff-tree failed");
2898                         @difftree
2899                                 or die_error('404 Not Found', "Blob diff not found");
2900
2901                 } elsif (defined $hash &&
2902                          $hash =~ /[0-9a-fA-F]{40}/) {
2903                         # try to find filename from $hash
2904
2905                         # read filtered raw output
2906                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
2907                                 or die_error(undef, "Open git-diff-tree failed");
2908                         @difftree =
2909                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
2910                                 # $hash == to_id
2911                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
2912                                 map { chomp; $_ } <$fd>;
2913                         close $fd
2914                                 or die_error(undef, "Reading git-diff-tree failed");
2915                         @difftree
2916                                 or die_error('404 Not Found', "Blob diff not found");
2917
2918                 } else {
2919                         die_error('404 Not Found', "Missing one of the blob diff parameters");
2920                 }
2921
2922                 if (@difftree > 1) {
2923                         die_error('404 Not Found', "Ambiguous blob diff specification");
2924                 }
2925
2926                 %diffinfo = parse_difftree_raw_line($difftree[0]);
2927                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
2928                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
2929
2930                 $hash_parent ||= $diffinfo{'from_id'};
2931                 $hash        ||= $diffinfo{'to_id'};
2932
2933                 # non-textual hash id's can be cached
2934                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
2935                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
2936                         $expires = '+1d';
2937                 }
2938
2939                 # open patch output
2940                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
2941                         '-p', $hash_parent_base, $hash_base,
2942                         "--", $file_name
2943                         or die_error(undef, "Open git-diff-tree failed");
2944         }
2945
2946         # old/legacy style URI
2947         if (!%diffinfo && # if new style URI failed
2948             defined $hash && defined $hash_parent) {
2949                 # fake git-diff-tree raw output
2950                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
2951                 $diffinfo{'from_id'} = $hash_parent;
2952                 $diffinfo{'to_id'}   = $hash;
2953                 if (defined $file_name) {
2954                         if (defined $file_parent) {
2955                                 $diffinfo{'status'} = '2';
2956                                 $diffinfo{'from_file'} = $file_parent;
2957                                 $diffinfo{'to_file'}   = $file_name;
2958                         } else { # assume not renamed
2959                                 $diffinfo{'status'} = '1';
2960                                 $diffinfo{'from_file'} = $file_name;
2961                                 $diffinfo{'to_file'}   = $file_name;
2962                         }
2963                 } else { # no filename given
2964                         $diffinfo{'status'} = '2';
2965                         $diffinfo{'from_file'} = $hash_parent;
2966                         $diffinfo{'to_file'}   = $hash;
2967                 }
2968
2969                 # non-textual hash id's can be cached
2970                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
2971                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
2972                         $expires = '+1d';
2973                 }
2974
2975                 # open patch output
2976                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
2977                         or die_error(undef, "Open git-diff failed");
2978         } else  {
2979                 die_error('404 Not Found', "Missing one of the blob diff parameters")
2980                         unless %diffinfo;
2981         }
2982
2983         # header
2984         if ($format eq 'html') {
2985                 my $formats_nav =
2986                         $cgi->a({-href => href(action=>"blobdiff_plain",
2987                                                hash=>$hash, hash_parent=>$hash_parent,
2988                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
2989                                                file_name=>$file_name, file_parent=>$file_parent)},
2990                                 "plain");
2991                 git_header_html(undef, $expires);
2992                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2993                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2994                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2995                 } else {
2996                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
2997                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
2998                 }
2999                 if (defined $file_name) {
3000                         git_print_page_path($file_name, "blob", $hash_base);
3001                 } else {
3002                         print "<div class=\"page_path\"></div>\n";
3003                 }
3004
3005         } elsif ($format eq 'plain') {
3006                 print $cgi->header(
3007                         -type => 'text/plain',
3008                         -charset => 'utf-8',
3009                         -expires => $expires,
3010                         -content_disposition => qq(inline; filename="${file_name}.patch"));
3011
3012                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3013
3014         } else {
3015                 die_error(undef, "Unknown blobdiff format");
3016         }
3017
3018         # patch
3019         if ($format eq 'html') {
3020                 print "<div class=\"page_body\">\n";
3021
3022                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3023                 close $fd;
3024
3025                 print "</div>\n"; # class="page_body"
3026                 git_footer_html();
3027
3028         } else {
3029                 while (my $line = <$fd>) {
3030                         $line =~ s!a/($hash|$hash_parent)!a/$diffinfo{'from_file'}!g;
3031                         $line =~ s!b/($hash|$hash_parent)!b/$diffinfo{'to_file'}!g;
3032
3033                         print $line;
3034
3035                         last if $line =~ m!^\+\+\+!;
3036                 }
3037                 local $/ = undef;
3038                 print <$fd>;
3039                 close $fd;
3040         }
3041 }
3042
3043 sub git_blobdiff_plain {
3044         git_blobdiff('plain');
3045 }
3046
3047 sub git_commitdiff {
3048         my $format = shift || 'html';
3049         my %co = parse_commit($hash);
3050         if (!%co) {
3051                 die_error(undef, "Unknown commit object");
3052         }
3053         if (!defined $hash_parent) {
3054                 $hash_parent = $co{'parent'} || '--root';
3055         }
3056
3057         # read commitdiff
3058         my $fd;
3059         my @difftree;
3060         if ($format eq 'html') {
3061                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3062                         "--patch-with-raw", "--full-index", $hash_parent, $hash
3063                         or die_error(undef, "Open git-diff-tree failed");
3064
3065                 while (chomp(my $line = <$fd>)) {
3066                         # empty line ends raw part of diff-tree output
3067                         last unless $line;
3068                         push @difftree, $line;
3069                 }
3070
3071         } elsif ($format eq 'plain') {
3072                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3073                         '-p', $hash_parent, $hash
3074                         or die_error(undef, "Open git-diff-tree failed");
3075
3076         } else {
3077                 die_error(undef, "Unknown commitdiff format");
3078         }
3079
3080         # non-textual hash id's can be cached
3081         my $expires;
3082         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3083                 $expires = "+1d";
3084         }
3085
3086         # write commit message
3087         if ($format eq 'html') {
3088                 my $refs = git_get_references();
3089                 my $ref = format_ref_marker($refs, $co{'id'});
3090                 my $formats_nav =
3091                         $cgi->a({-href => href(action=>"commitdiff_plain",
3092                                                hash=>$hash, hash_parent=>$hash_parent)},
3093                                 "plain");
3094
3095                 git_header_html(undef, $expires);
3096                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3097                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3098                 git_print_authorship(\%co);
3099                 print "<div class=\"page_body\">\n";
3100                 print "<div class=\"log\">\n";
3101                 git_print_simplified_log($co{'comment'}, 1); # skip title
3102                 print "</div>\n"; # class="log"
3103
3104         } elsif ($format eq 'plain') {
3105                 my $refs = git_get_references("tags");
3106                 my $tagname = git_get_rev_name_tags($hash);
3107                 my $filename = basename($project) . "-$hash.patch";
3108
3109                 print $cgi->header(
3110                         -type => 'text/plain',
3111                         -charset => 'utf-8',
3112                         -expires => $expires,
3113                         -content_disposition => qq(inline; filename="$filename"));
3114                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3115                 print <<TEXT;
3116 From: $co{'author'}
3117 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3118 Subject: $co{'title'}
3119 TEXT
3120                 print "X-Git-Tag: $tagname\n" if $tagname;
3121                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3122
3123                 foreach my $line (@{$co{'comment'}}) {
3124                         print "$line\n";
3125                 }
3126                 print "---\n\n";
3127         }
3128
3129         # write patch
3130         if ($format eq 'html') {
3131                 git_difftree_body(\@difftree, $hash, $hash_parent);
3132                 print "<br/>\n";
3133
3134                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3135                 close $fd;
3136                 print "</div>\n"; # class="page_body"
3137                 git_footer_html();
3138
3139         } elsif ($format eq 'plain') {
3140                 local $/ = undef;
3141                 print <$fd>;
3142                 close $fd
3143                         or print "Reading git-diff-tree failed\n";
3144         }
3145 }
3146
3147 sub git_commitdiff_plain {
3148         git_commitdiff('plain');
3149 }
3150
3151 sub git_history {
3152         if (!defined $hash_base) {
3153                 $hash_base = git_get_head_hash($project);
3154         }
3155         if (!defined $page) {
3156                 $page = 0;
3157         }
3158         my $ftype;
3159         my %co = parse_commit($hash_base);
3160         if (!%co) {
3161                 die_error(undef, "Unknown commit object");
3162         }
3163
3164         my $refs = git_get_references();
3165         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3166
3167         if (!defined $hash && defined $file_name) {
3168                 $hash = git_get_hash_by_path($hash_base, $file_name);
3169         }
3170         if (defined $hash) {
3171                 $ftype = git_get_type($hash);
3172         }
3173
3174         open my $fd, "-|",
3175                 git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3176                         or die_error(undef, "Open git-rev-list-failed");
3177         my @revlist = map { chomp; $_ } <$fd>;
3178         close $fd
3179                 or die_error(undef, "Reading git-rev-list failed");
3180
3181         my $paging_nav = '';
3182         if ($page > 0) {
3183                 $paging_nav .=
3184                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3185                                                file_name=>$file_name)},
3186                                 "first");
3187                 $paging_nav .= " &sdot; " .
3188                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3189                                                file_name=>$file_name, page=>$page-1),
3190                                  -accesskey => "p", -title => "Alt-p"}, "prev");
3191         } else {
3192                 $paging_nav .= "first";
3193                 $paging_nav .= " &sdot; prev";
3194         }
3195         if ($#revlist >= (100 * ($page+1)-1)) {
3196                 $paging_nav .= " &sdot; " .
3197                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3198                                                file_name=>$file_name, page=>$page+1),
3199                                  -accesskey => "n", -title => "Alt-n"}, "next");
3200         } else {
3201                 $paging_nav .= " &sdot; next";
3202         }
3203         my $next_link = '';
3204         if ($#revlist >= (100 * ($page+1)-1)) {
3205                 $next_link =
3206                         $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3207                                                file_name=>$file_name, page=>$page+1),
3208                                  -title => "Alt-n"}, "next");
3209         }
3210
3211         git_header_html();
3212         git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3213         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3214         git_print_page_path($file_name, $ftype, $hash_base);
3215
3216         git_history_body(\@revlist, ($page * 100), $#revlist,
3217                          $refs, $hash_base, $ftype, $next_link);
3218
3219         git_footer_html();
3220 }
3221
3222 sub git_search {
3223         if (!defined $searchtext) {
3224                 die_error(undef, "Text field empty");
3225         }
3226         if (!defined $hash) {
3227                 $hash = git_get_head_hash($project);
3228         }
3229         my %co = parse_commit($hash);
3230         if (!%co) {
3231                 die_error(undef, "Unknown commit object");
3232         }
3233
3234         my $commit_search = 1;
3235         my $author_search = 0;
3236         my $committer_search = 0;
3237         my $pickaxe_search = 0;
3238         if ($searchtext =~ s/^author\\://i) {
3239                 $author_search = 1;
3240         } elsif ($searchtext =~ s/^committer\\://i) {
3241                 $committer_search = 1;
3242         } elsif ($searchtext =~ s/^pickaxe\\://i) {
3243                 $commit_search = 0;
3244                 $pickaxe_search = 1;
3245
3246                 # pickaxe may take all resources of your box and run for several minutes
3247                 # with every query - so decide by yourself how public you make this feature
3248                 my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3249                 if (!$have_pickaxe) {
3250                         die_error('403 Permission denied', "Permission denied");
3251                 }
3252         }
3253         git_header_html();
3254         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3255         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3256
3257         print "<table cellspacing=\"0\">\n";
3258         my $alternate = 0;
3259         if ($commit_search) {
3260                 $/ = "\0";
3261                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3262                 while (my $commit_text = <$fd>) {
3263                         if (!grep m/$searchtext/i, $commit_text) {
3264                                 next;
3265                         }
3266                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3267                                 next;
3268                         }
3269                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3270                                 next;
3271                         }
3272                         my @commit_lines = split "\n", $commit_text;
3273                         my %co = parse_commit(undef, \@commit_lines);
3274                         if (!%co) {
3275                                 next;
3276                         }
3277                         if ($alternate) {
3278                                 print "<tr class=\"dark\">\n";
3279                         } else {
3280                                 print "<tr class=\"light\">\n";
3281                         }
3282                         $alternate ^= 1;
3283                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3284                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3285                               "<td>" .
3286                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3287                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3288                         my $comment = $co{'comment'};
3289                         foreach my $line (@$comment) {
3290                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3291                                         my $lead = esc_html($1) || "";
3292                                         $lead = chop_str($lead, 30, 10);
3293                                         my $match = esc_html($2) || "";
3294                                         my $trail = esc_html($3) || "";
3295                                         $trail = chop_str($trail, 30, 10);
3296                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3297                                         print chop_str($text, 80, 5) . "<br/>\n";
3298                                 }
3299                         }
3300                         print "</td>\n" .
3301                               "<td class=\"link\">" .
3302                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3303                               " | " .
3304                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3305                         print "</td>\n" .
3306                               "</tr>\n";
3307                 }
3308                 close $fd;
3309         }
3310
3311         if ($pickaxe_search) {
3312                 $/ = "\n";
3313                 my $git_command = git_cmd_str();
3314                 open my $fd, "-|", "$git_command rev-list $hash | " .
3315                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3316                 undef %co;
3317                 my @files;
3318                 while (my $line = <$fd>) {
3319                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3320                                 my %set;
3321                                 $set{'file'} = $6;
3322                                 $set{'from_id'} = $3;
3323                                 $set{'to_id'} = $4;
3324                                 $set{'id'} = $set{'to_id'};
3325                                 if ($set{'id'} =~ m/0{40}/) {
3326                                         $set{'id'} = $set{'from_id'};
3327                                 }
3328                                 if ($set{'id'} =~ m/0{40}/) {
3329                                         next;
3330                                 }
3331                                 push @files, \%set;
3332                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3333                                 if (%co) {
3334                                         if ($alternate) {
3335                                                 print "<tr class=\"dark\">\n";
3336                                         } else {
3337                                                 print "<tr class=\"light\">\n";
3338                                         }
3339                                         $alternate ^= 1;
3340                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3341                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3342                                               "<td>" .
3343                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3344                                                       -class => "list subject"},
3345                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3346                                         while (my $setref = shift @files) {
3347                                                 my %set = %$setref;
3348                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3349                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3350                                                               -class => "list"},
3351                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3352                                                       "<br/>\n";
3353                                         }
3354                                         print "</td>\n" .
3355                                               "<td class=\"link\">" .
3356                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3357                                               " | " .
3358                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3359                                         print "</td>\n" .
3360                                               "</tr>\n";
3361                                 }
3362                                 %co = parse_commit($1);
3363                         }
3364                 }
3365                 close $fd;
3366         }
3367         print "</table>\n";
3368         git_footer_html();
3369 }
3370
3371 sub git_shortlog {
3372         my $head = git_get_head_hash($project);
3373         if (!defined $hash) {
3374                 $hash = $head;
3375         }
3376         if (!defined $page) {
3377                 $page = 0;
3378         }
3379         my $refs = git_get_references();
3380
3381         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3382         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3383                 or die_error(undef, "Open git-rev-list failed");
3384         my @revlist = map { chomp; $_ } <$fd>;
3385         close $fd;
3386
3387         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3388         my $next_link = '';
3389         if ($#revlist >= (100 * ($page+1)-1)) {
3390                 $next_link =
3391                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3392                                  -title => "Alt-n"}, "next");
3393         }
3394
3395
3396         git_header_html();
3397         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3398         git_print_header_div('summary', $project);
3399
3400         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3401
3402         git_footer_html();
3403 }
3404
3405 ## ......................................................................
3406 ## feeds (RSS, OPML)
3407
3408 sub git_rss {
3409         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3410         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3411                 or die_error(undef, "Open git-rev-list failed");
3412         my @revlist = map { chomp; $_ } <$fd>;
3413         close $fd or die_error(undef, "Reading git-rev-list failed");
3414         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3415         print <<XML;
3416 <?xml version="1.0" encoding="utf-8"?>
3417 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3418 <channel>
3419 <title>$project $my_uri $my_url</title>
3420 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3421 <description>$project log</description>
3422 <language>en</language>
3423 XML
3424
3425         for (my $i = 0; $i <= $#revlist; $i++) {
3426                 my $commit = $revlist[$i];
3427                 my %co = parse_commit($commit);
3428                 # we read 150, we always show 30 and the ones more recent than 48 hours
3429                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3430                         last;
3431                 }
3432                 my %cd = parse_date($co{'committer_epoch'});
3433                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3434                         $co{'parent'}, $co{'id'}
3435                         or next;
3436                 my @difftree = map { chomp; $_ } <$fd>;
3437                 close $fd
3438                         or next;
3439                 print "<item>\n" .
3440                       "<title>" .
3441                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3442                       "</title>\n" .
3443                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3444                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3445                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3446                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3447                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3448                       "<content:encoded>" .
3449                       "<![CDATA[\n";
3450                 my $comment = $co{'comment'};
3451                 foreach my $line (@$comment) {
3452                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
3453                         print "$line<br/>\n";
3454                 }
3455                 print "<br/>\n";
3456                 foreach my $line (@difftree) {
3457                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3458                                 next;
3459                         }
3460                         my $file = validate_input(unquote($7));
3461                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
3462                         print "$file<br/>\n";
3463                 }
3464                 print "]]>\n" .
3465                       "</content:encoded>\n" .
3466                       "</item>\n";
3467         }
3468         print "</channel></rss>";
3469 }
3470
3471 sub git_opml {
3472         my @list = git_get_projects_list();
3473
3474         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3475         print <<XML;
3476 <?xml version="1.0" encoding="utf-8"?>
3477 <opml version="1.0">
3478 <head>
3479   <title>$site_name Git OPML Export</title>
3480 </head>
3481 <body>
3482 <outline text="git RSS feeds">
3483 XML
3484
3485         foreach my $pr (@list) {
3486                 my %proj = %$pr;
3487                 my $head = git_get_head_hash($proj{'path'});
3488                 if (!defined $head) {
3489                         next;
3490                 }
3491                 $git_dir = "$projectroot/$proj{'path'}";
3492                 my %co = parse_commit($head);
3493                 if (!%co) {
3494                         next;
3495                 }
3496
3497                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3498                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3499                 my $html = "$my_url?p=$proj{'path'};a=summary";
3500                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3501         }
3502         print <<XML;
3503 </outline>
3504 </body>
3505 </opml>
3506 XML
3507 }