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