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
  52 # source of projects list
  53 our $projects_list = "++GITWEB_LIST++";
  54
  55 # list of git base URLs used for URL to where fetch project from,
  56 # i.e. full URL is "$git_base_url/$project"
  57 our @git_base_url_list = ("++GITWEB_BASE_URL++");
  58
  59 # default blob_plain mimetype and default charset for text/plain blob
  60 our $default_blob_plain_mimetype = 'text/plain';
  61 our $default_text_plain_charset  = undef;
  62
  63 # file to use for guessing MIME types before trying /etc/mime.types
  64 # (relative to the current git repository)
  65 our $mimetypes_file = undef;
  66
  67 # You define site-wide feature defaults here; override them with
  68 # $GITWEB_CONFIG as necessary.
  69 our %feature = (
  70         # feature => {
  71         #       'sub' => feature-sub (subroutine),
  72         #       'override' => allow-override (boolean),
  73         #       'default' => [ default options...] (array reference)}
  74         #
  75         # if feature is overridable (it means that allow-override has true value,
  76         # then feature-sub will be called with default options as parameters;
  77         # return value of feature-sub indicates if to enable specified feature
  78         #
  79         # use gitweb_check_feature(<feature>) to check if <feature> is enabled
  80
  81         'blame' => {
  82                 'sub' => \&feature_blame,
  83                 'override' => 0,
  84                 'default' => [0]},
  85
  86         'snapshot' => {
  87                 'sub' => \&feature_snapshot,
  88                 'override' => 0,
  89                 #         => [content-encoding, suffix, program]
  90                 'default' => ['x-gzip', 'gz', 'gzip']},
  91 );
  92
  93 sub gitweb_check_feature {
  94         my ($name) = @_;
  95         return undef unless exists $feature{$name};
  96         my ($sub, $override, @defaults) = (
  97                 $feature{$name}{'sub'},
  98                 $feature{$name}{'override'},
  99                 @{$feature{$name}{'default'}});
 100         if (!$override) { return @defaults; }
 101         return $sub->(@defaults);
 102 }
 103
 104 # To enable system wide have in $GITWEB_CONFIG
 105 # $feature{'blame'}{'default'} = [1];
 106 # To have project specific config enable override in $GITWEB_CONFIG
 107 # $feature{'blame'}{'override'} = 1;
 108 # and in project config gitweb.blame = 0|1;
 109
 110 sub feature_blame {
 111         my ($val) = git_get_project_config('blame', '--bool');
 112
 113         if ($val eq 'true') {
 114                 return 1;
 115         } elsif ($val eq 'false') {
 116                 return 0;
 117         }
 118
 119         return $_[0];
 120 }
 121
 122 # To disable system wide have in $GITWEB_CONFIG
 123 # $feature{'snapshot'}{'default'} = [undef];
 124 # To have project specific config enable override in $GITWEB_CONFIG
 125 # $feature{'blame'}{'override'} = 1;
 126 # and in project config  gitweb.snapshot = none|gzip|bzip2
 127
 128 sub feature_snapshot {
 129         my ($ctype, $suffix, $command) = @_;
 130
 131         my ($val) = git_get_project_config('snapshot');
 132
 133         if ($val eq 'gzip') {
 134                 return ('x-gzip', 'gz', 'gzip');
 135         } elsif ($val eq 'bzip2') {
 136                 return ('x-bzip2', 'bz2', 'bzip2');
 137         } elsif ($val eq 'none') {
 138                 return ();
 139         }
 140
 141         return ($ctype, $suffix, $command);
 142 }
 143
 144 # rename detection options for git-diff and git-diff-tree
 145 # - default is '-M', with the cost proportional to
 146 #   (number of removed files) * (number of new files).
 147 # - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 148 #   (number of changed files + number of removed files) * (number of new files)
 149 # - even more costly is '-C', '--find-copies-harder' with cost
 150 #   (number of files in the original tree) * (number of new files)
 151 # - one might want to include '-B' option, e.g. '-B', '-M'
 152 our @diff_opts = ('-M'); # taken from git_commit
 153
 154 our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 155 do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 156
 157 # version of the core git binary
 158 our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 159
 160 # path to the current git repository
 161 our $git_dir;
 162
 163 $projects_list ||= $projectroot;
 164
 165 # ======================================================================
 166 # input validation and dispatch
 167 our $action = $cgi->param('a');
 168 if (defined $action) {
 169         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 170                 die_error(undef, "Invalid action parameter");
 171         }
 172 }
 173
 174 our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
 175 if (defined $project) {
 176         $project =~ s|^/||;
 177         $project =~ s|/$||;
 178         $project = undef unless $project;
 179 }
 180 if (defined $project) {
 181         if (!validate_input($project)) {
 182                 die_error(undef, "Invalid project parameter");
 183         }
 184         if (!(-d "$projectroot/$project")) {
 185                 die_error(undef, "No such directory");
 186         }
 187         if (!(-e "$projectroot/$project/HEAD")) {
 188                 die_error(undef, "No such project");
 189         }
 190         $git_dir = "$projectroot/$project";
 191 }
 192
 193 our $file_name = $cgi->param('f');
 194 if (defined $file_name) {
 195         if (!validate_input($file_name)) {
 196                 die_error(undef, "Invalid file parameter");
 197         }
 198 }
 199
 200 our $file_parent = $cgi->param('fp');
 201 if (defined $file_parent) {
 202         if (!validate_input($file_parent)) {
 203                 die_error(undef, "Invalid file parent parameter");
 204         }
 205 }
 206
 207 our $hash = $cgi->param('h');
 208 if (defined $hash) {
 209         if (!validate_input($hash)) {
 210                 die_error(undef, "Invalid hash parameter");
 211         }
 212 }
 213
 214 our $hash_parent = $cgi->param('hp');
 215 if (defined $hash_parent) {
 216         if (!validate_input($hash_parent)) {
 217                 die_error(undef, "Invalid hash parent parameter");
 218         }
 219 }
 220
 221 our $hash_base = $cgi->param('hb');
 222 if (defined $hash_base) {
 223         if (!validate_input($hash_base)) {
 224                 die_error(undef, "Invalid hash base parameter");
 225         }
 226 }
 227
 228 our $hash_parent_base = $cgi->param('hpb');
 229 if (defined $hash_parent_base) {
 230         if (!validate_input($hash_parent_base)) {
 231                 die_error(undef, "Invalid hash parent base parameter");
 232         }
 233 }
 234
 235 our $page = $cgi->param('pg');
 236 if (defined $page) {
 237         if ($page =~ m/[^0-9]$/) {
 238                 die_error(undef, "Invalid page parameter");
 239         }
 240 }
 241
 242 our $searchtext = $cgi->param('s');
 243 if (defined $searchtext) {
 244         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 245                 die_error(undef, "Invalid search parameter");
 246         }
 247         $searchtext = quotemeta $searchtext;
 248 }
 249
 250 # dispatch
 251 my %actions = (
 252         "blame" => \&git_blame2,
 253         "blobdiff" => \&git_blobdiff,
 254         "blobdiff_plain" => \&git_blobdiff_plain,
 255         "blob" => \&git_blob,
 256         "blob_plain" => \&git_blob_plain,
 257         "commitdiff" => \&git_commitdiff,
 258         "commitdiff_plain" => \&git_commitdiff_plain,
 259         "commit" => \&git_commit,
 260         "heads" => \&git_heads,
 261         "history" => \&git_history,
 262         "log" => \&git_log,
 263         "rss" => \&git_rss,
 264         "search" => \&git_search,
 265         "shortlog" => \&git_shortlog,
 266         "summary" => \&git_summary,
 267         "tag" => \&git_tag,
 268         "tags" => \&git_tags,
 269         "tree" => \&git_tree,
 270         "snapshot" => \&git_snapshot,
 271         # those below don't need $project
 272         "opml" => \&git_opml,
 273         "project_list" => \&git_project_list,
 274 );
 275
 276 if (defined $project) {
 277         $action ||= 'summary';
 278 } else {
 279         $action ||= 'project_list';
 280 }
 281 if (!defined($actions{$action})) {
 282         die_error(undef, "Unknown action");
 283 }
 284 $actions{$action}->();
 285 exit;
 286
 287 ## ======================================================================
 288 ## action links
 289
 290 sub href(%) {
 291         my %params = @_;
 292
 293         my @mapping = (
 294                 project => "p",
 295                 action => "a",
 296                 file_name => "f",
 297                 file_parent => "fp",
 298                 hash => "h",
 299                 hash_parent => "hp",
 300                 hash_base => "hb",
 301                 hash_parent_base => "hpb",
 302                 page => "pg",
 303                 searchtext => "s",
 304         );
 305         my %mapping = @mapping;
 306
 307         $params{"project"} ||= $project;
 308
 309         my @result = ();
 310         for (my $i = 0; $i < @mapping; $i += 2) {
 311                 my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 312                 if (defined $params{$name}) {
 313                         push @result, $symbol . "=" . esc_param($params{$name});
 314                 }
 315         }
 316         return "$my_uri?" . join(';', @result);
 317 }
 318
 319
 320 ## ======================================================================
 321 ## validation, quoting/unquoting and escaping
 322
 323 sub validate_input {
 324         my $input = shift;
 325
 326         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 327                 return $input;
 328         }
 329         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 330                 return undef;
 331         }
 332         if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 333                 return undef;
 334         }
 335         return $input;
 336 }
 337
 338 # quote unsafe chars, but keep the slash, even when it's not
 339 # correct, but quoted slashes look too horrible in bookmarks
 340 sub esc_param {
 341         my $str = shift;
 342         $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 343         $str =~ s/\+/%2B/g;
 344         $str =~ s/ /\+/g;
 345         return $str;
 346 }
 347
 348 # replace invalid utf8 character with SUBSTITUTION sequence
 349 sub esc_html {
 350         my $str = shift;
 351         $str = decode("utf8", $str, Encode::FB_DEFAULT);
 352         $str = escapeHTML($str);
 353         $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 354         return $str;
 355 }
 356
 357 # git may return quoted and escaped filenames
 358 sub unquote {
 359         my $str = shift;
 360         if ($str =~ m/^"(.*)"$/) {
 361                 $str = $1;
 362                 $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 363         }
 364         return $str;
 365 }
 366
 367 # escape tabs (convert tabs to spaces)
 368 sub untabify {
 369         my $line = shift;
 370
 371         while ((my $pos = index($line, "\t")) != -1) {
 372                 if (my $count = (8 - ($pos % 8))) {
 373                         my $spaces = ' ' x $count;
 374                         $line =~ s/\t/$spaces/;
 375                 }
 376         }
 377
 378         return $line;
 379 }
 380
 381 ## ----------------------------------------------------------------------
 382 ## HTML aware string manipulation
 383
 384 sub chop_str {
 385         my $str = shift;
 386         my $len = shift;
 387         my $add_len = shift || 10;
 388
 389         # allow only $len chars, but don't cut a word if it would fit in $add_len
 390         # if it doesn't fit, cut it if it's still longer than the dots we would add
 391         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 392         my $body = $1;
 393         my $tail = $2;
 394         if (length($tail) > 4) {
 395                 $tail = " ...";
 396                 $body =~ s/&[^;]*$//; # remove chopped character entities
 397         }
 398         return "$body$tail";
 399 }
 400
 401 ## ----------------------------------------------------------------------
 402 ## functions returning short strings
 403
 404 # CSS class for given age value (in seconds)
 405 sub age_class {
 406         my $age = shift;
 407
 408         if ($age < 60*60*2) {
 409                 return "age0";
 410         } elsif ($age < 60*60*24*2) {
 411                 return "age1";
 412         } else {
 413                 return "age2";
 414         }
 415 }
 416
 417 # convert age in seconds to "nn units ago" string
 418 sub age_string {
 419         my $age = shift;
 420         my $age_str;
 421
 422         if ($age > 60*60*24*365*2) {
 423                 $age_str = (int $age/60/60/24/365);
 424                 $age_str .= " years ago";
 425         } elsif ($age > 60*60*24*(365/12)*2) {
 426                 $age_str = int $age/60/60/24/(365/12);
 427                 $age_str .= " months ago";
 428         } elsif ($age > 60*60*24*7*2) {
 429                 $age_str = int $age/60/60/24/7;
 430                 $age_str .= " weeks ago";
 431         } elsif ($age > 60*60*24*2) {
 432                 $age_str = int $age/60/60/24;
 433                 $age_str .= " days ago";
 434         } elsif ($age > 60*60*2) {
 435                 $age_str = int $age/60/60;
 436                 $age_str .= " hours ago";
 437         } elsif ($age > 60*2) {
 438                 $age_str = int $age/60;
 439                 $age_str .= " min ago";
 440         } elsif ($age > 2) {
 441                 $age_str = int $age;
 442                 $age_str .= " sec ago";
 443         } else {
 444                 $age_str .= " right now";
 445         }
 446         return $age_str;
 447 }
 448
 449 # convert file mode in octal to symbolic file mode string
 450 sub mode_str {
 451         my $mode = oct shift;
 452
 453         if (S_ISDIR($mode & S_IFMT)) {
 454                 return 'drwxr-xr-x';
 455         } elsif (S_ISLNK($mode)) {
 456                 return 'lrwxrwxrwx';
 457         } elsif (S_ISREG($mode)) {
 458                 # git cares only about the executable bit
 459                 if ($mode & S_IXUSR) {
 460                         return '-rwxr-xr-x';
 461                 } else {
 462                         return '-rw-r--r--';
 463                 };
 464         } else {
 465                 return '----------';
 466         }
 467 }
 468
 469 # convert file mode in octal to file type string
 470 sub file_type {
 471         my $mode = shift;
 472
 473         if ($mode !~ m/^[0-7]+$/) {
 474                 return $mode;
 475         } else {
 476                 $mode = oct $mode;
 477         }
 478
 479         if (S_ISDIR($mode & S_IFMT)) {
 480                 return "directory";
 481         } elsif (S_ISLNK($mode)) {
 482                 return "symlink";
 483         } elsif (S_ISREG($mode)) {
 484                 return "file";
 485         } else {
 486                 return "unknown";
 487         }
 488 }
 489
 490 ## ----------------------------------------------------------------------
 491 ## functions returning short HTML fragments, or transforming HTML fragments
 492 ## which don't beling to other sections
 493
 494 # format line of commit message or tag comment
 495 sub format_log_line_html {
 496         my $line = shift;
 497
 498         $line = esc_html($line);
 499         $line =~ s/ /&nbsp;/g;
 500         if ($line =~ m/([0-9a-fA-F]{40})/) {
 501                 my $hash_text = $1;
 502                 if (git_get_type($hash_text) eq "commit") {
 503                         my $link =
 504                                 $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 505                                         -class => "text"}, $hash_text);
 506                         $line =~ s/$hash_text/$link/;
 507                 }
 508         }
 509         return $line;
 510 }
 511
 512 # format marker of refs pointing to given object
 513 sub format_ref_marker {
 514         my ($refs, $id) = @_;
 515         my $markers = '';
 516
 517         if (defined $refs->{$id}) {
 518                 foreach my $ref (@{$refs->{$id}}) {
 519                         my ($type, $name) = qw();
 520                         # e.g. tags/v2.6.11 or heads/next
 521                         if ($ref =~ m!^(.*?)s?/(.*)$!) {
 522                                 $type = $1;
 523                                 $name = $2;
 524                         } else {
 525                                 $type = "ref";
 526                                 $name = $ref;
 527                         }
 528
 529                         $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 530                 }
 531         }
 532
 533         if ($markers) {
 534                 return ' <span class="refs">'. $markers . '</span>';
 535         } else {
 536                 return "";
 537         }
 538 }
 539
 540 # format, perhaps shortened and with markers, title line
 541 sub format_subject_html {
 542         my ($long, $short, $href, $extra) = @_;
 543         $extra = '' unless defined($extra);
 544
 545         if (length($short) < length($long)) {
 546                 return $cgi->a({-href => $href, -class => "list subject",
 547                                 -title => $long},
 548                        esc_html($short) . $extra);
 549         } else {
 550                 return $cgi->a({-href => $href, -class => "list subject"},
 551                        esc_html($long)  . $extra);
 552         }
 553 }
 554
 555 sub format_diff_line {
 556         my $line = shift;
 557         my $char = substr($line, 0, 1);
 558         my $diff_class = "";
 559
 560         chomp $line;
 561
 562         if ($char eq '+') {
 563                 $diff_class = " add";
 564         } elsif ($char eq "-") {
 565                 $diff_class = " rem";
 566         } elsif ($char eq "@") {
 567                 $diff_class = " chunk_header";
 568         } elsif ($char eq "\\") {
 569                 $diff_class = " incomplete";
 570         }
 571         $line = untabify($line);
 572         return "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
 573 }
 574
 575 ## ----------------------------------------------------------------------
 576 ## git utility subroutines, invoking git commands
 577
 578 # returns path to the core git executable and the --git-dir parameter as list
 579 sub git_cmd {
 580         return $GIT, '--git-dir='.$git_dir;
 581 }
 582
 583 # returns path to the core git executable and the --git-dir parameter as string
 584 sub git_cmd_str {
 585         return join(' ', git_cmd());
 586 }
 587
 588 # get HEAD ref of given project as hash
 589 sub git_get_head_hash {
 590         my $project = shift;
 591         my $o_git_dir = $git_dir;
 592         my $retval = undef;
 593         $git_dir = "$projectroot/$project";
 594         if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 595                 my $head = <$fd>;
 596                 close $fd;
 597                 if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 598                         $retval = $1;
 599                 }
 600         }
 601         if (defined $o_git_dir) {
 602                 $git_dir = $o_git_dir;
 603         }
 604         return $retval;
 605 }
 606
 607 # get type of given object
 608 sub git_get_type {
 609         my $hash = shift;
 610
 611         open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 612         my $type = <$fd>;
 613         close $fd or return;
 614         chomp $type;
 615         return $type;
 616 }
 617
 618 sub git_get_project_config {
 619         my ($key, $type) = @_;
 620
 621         return unless ($key);
 622         $key =~ s/^gitweb\.//;
 623         return if ($key =~ m/\W/);
 624
 625         my @x = (git_cmd(), 'repo-config');
 626         if (defined $type) { push @x, $type; }
 627         push @x, "--get";
 628         push @x, "gitweb.$key";
 629         my $val = qx(@x);
 630         chomp $val;
 631         return ($val);
 632 }
 633
 634 # get hash of given path at given ref
 635 sub git_get_hash_by_path {
 636         my $base = shift;
 637         my $path = shift || return undef;
 638
 639         my $tree = $base;
 640
 641         open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 642                 or die_error(undef, "Open git-ls-tree failed");
 643         my $line = <$fd>;
 644         close $fd or return undef;
 645
 646         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 647         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 648         return $3;
 649 }
 650
 651 ## ......................................................................
 652 ## git utility functions, directly accessing git repository
 653
 654 # assumes that PATH is not symref
 655 sub git_get_hash_by_ref {
 656         my $path = shift;
 657
 658         open my $fd, "$projectroot/$path" or return undef;
 659         my $head = <$fd>;
 660         close $fd;
 661         chomp $head;
 662         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 663                 return $head;
 664         }
 665 }
 666
 667 sub git_get_project_description {
 668         my $path = shift;
 669
 670         open my $fd, "$projectroot/$path/description" or return undef;
 671         my $descr = <$fd>;
 672         close $fd;
 673         chomp $descr;
 674         return $descr;
 675 }
 676
 677 sub git_get_project_url_list {
 678         my $path = shift;
 679
 680         open my $fd, "$projectroot/$path/cloneurl" or return undef;
 681         my @git_project_url_list = map { chomp; $_ } <$fd>;
 682         close $fd;
 683
 684         return wantarray ? @git_project_url_list : \@git_project_url_list;
 685 }
 686
 687 sub git_get_projects_list {
 688         my @list;
 689
 690         if (-d $projects_list) {
 691                 # search in directory
 692                 my $dir = $projects_list;
 693                 opendir my ($dh), $dir or return undef;
 694                 while (my $dir = readdir($dh)) {
 695                         if (-e "$projectroot/$dir/HEAD") {
 696                                 my $pr = {
 697                                         path => $dir,
 698                                 };
 699                                 push @list, $pr
 700                         }
 701                 }
 702                 closedir($dh);
 703         } elsif (-f $projects_list) {
 704                 # read from file(url-encoded):
 705                 # 'git%2Fgit.git Linus+Torvalds'
 706                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 707                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 708                 open my ($fd), $projects_list or return undef;
 709                 while (my $line = <$fd>) {
 710                         chomp $line;
 711                         my ($path, $owner) = split ' ', $line;
 712                         $path = unescape($path);
 713                         $owner = unescape($owner);
 714                         if (!defined $path) {
 715                                 next;
 716                         }
 717                         if (-e "$projectroot/$path/HEAD") {
 718                                 my $pr = {
 719                                         path => $path,
 720                                         owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 721                                 };
 722                                 push @list, $pr
 723                         }
 724                 }
 725                 close $fd;
 726         }
 727         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 728         return @list;
 729 }
 730
 731 sub git_get_project_owner {
 732         my $project = shift;
 733         my $owner;
 734
 735         return undef unless $project;
 736
 737         # read from file (url-encoded):
 738         # 'git%2Fgit.git Linus+Torvalds'
 739         # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 740         # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 741         if (-f $projects_list) {
 742                 open (my $fd , $projects_list);
 743                 while (my $line = <$fd>) {
 744                         chomp $line;
 745                         my ($pr, $ow) = split ' ', $line;
 746                         $pr = unescape($pr);
 747                         $ow = unescape($ow);
 748                         if ($pr eq $project) {
 749                                 $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 750                                 last;
 751                         }
 752                 }
 753                 close $fd;
 754         }
 755         if (!defined $owner) {
 756                 $owner = get_file_owner("$projectroot/$project");
 757         }
 758
 759         return $owner;
 760 }
 761
 762 sub git_get_references {
 763         my $type = shift || "";
 764         my %refs;
 765         my $fd;
 766         # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 767         # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 768         if (-f "$projectroot/$project/info/refs") {
 769                 open $fd, "$projectroot/$project/info/refs"
 770                         or return;
 771         } else {
 772                 open $fd, "-|", git_cmd(), "ls-remote", "."
 773                         or return;
 774         }
 775
 776         while (my $line = <$fd>) {
 777                 chomp $line;
 778                 if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 779                         if (defined $refs{$1}) {
 780                                 push @{$refs{$1}}, $2;
 781                         } else {
 782                                 $refs{$1} = [ $2 ];
 783                         }
 784                 }
 785         }
 786         close $fd or return;
 787         return \%refs;
 788 }
 789
 790 sub git_get_rev_name_tags {
 791         my $hash = shift || return undef;
 792
 793         open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
 794                 or return;
 795         my $name_rev = <$fd>;
 796         close $fd;
 797
 798         if ($name_rev =~ m|^$hash tags/(.*)$|) {
 799                 return $1;
 800         } else {
 801                 # catches also '$hash undefined' output
 802                 return undef;
 803         }
 804 }
 805
 806 ## ----------------------------------------------------------------------
 807 ## parse to hash functions
 808
 809 sub parse_date {
 810         my $epoch = shift;
 811         my $tz = shift || "-0000";
 812
 813         my %date;
 814         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 815         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 816         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 817         $date{'hour'} = $hour;
 818         $date{'minute'} = $min;
 819         $date{'mday'} = $mday;
 820         $date{'day'} = $days[$wday];
 821         $date{'month'} = $months[$mon];
 822         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
 823                            $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 824         $date{'mday-time'} = sprintf "%d %s %02d:%02d",
 825                              $mday, $months[$mon], $hour ,$min;
 826
 827         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 828         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 829         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 830         $date{'hour_local'} = $hour;
 831         $date{'minute_local'} = $min;
 832         $date{'tz_local'} = $tz;
 833         return %date;
 834 }
 835
 836 sub parse_tag {
 837         my $tag_id = shift;
 838         my %tag;
 839         my @comment;
 840
 841         open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
 842         $tag{'id'} = $tag_id;
 843         while (my $line = <$fd>) {
 844                 chomp $line;
 845                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 846                         $tag{'object'} = $1;
 847                 } elsif ($line =~ m/^type (.+)$/) {
 848                         $tag{'type'} = $1;
 849                 } elsif ($line =~ m/^tag (.+)$/) {
 850                         $tag{'name'} = $1;
 851                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 852                         $tag{'author'} = $1;
 853                         $tag{'epoch'} = $2;
 854                         $tag{'tz'} = $3;
 855                 } elsif ($line =~ m/--BEGIN/) {
 856                         push @comment, $line;
 857                         last;
 858                 } elsif ($line eq "") {
 859                         last;
 860                 }
 861         }
 862         push @comment, <$fd>;
 863         $tag{'comment'} = \@comment;
 864         close $fd or return;
 865         if (!defined $tag{'name'}) {
 866                 return
 867         };
 868         return %tag
 869 }
 870
 871 sub parse_commit {
 872         my $commit_id = shift;
 873         my $commit_text = shift;
 874
 875         my @commit_lines;
 876         my %co;
 877
 878         if (defined $commit_text) {
 879                 @commit_lines = @$commit_text;
 880         } else {
 881                 $/ = "\0";
 882                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", "--max-count=1", $commit_id
 883                         or return;
 884                 @commit_lines = split '\n', <$fd>;
 885                 close $fd or return;
 886                 $/ = "\n";
 887                 pop @commit_lines;
 888         }
 889         my $header = shift @commit_lines;
 890         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 891                 return;
 892         }
 893         ($co{'id'}, my @parents) = split ' ', $header;
 894         $co{'parents'} = \@parents;
 895         $co{'parent'} = $parents[0];
 896         while (my $line = shift @commit_lines) {
 897                 last if $line eq "\n";
 898                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 899                         $co{'tree'} = $1;
 900                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 901                         $co{'author'} = $1;
 902                         $co{'author_epoch'} = $2;
 903                         $co{'author_tz'} = $3;
 904                         if ($co{'author'} =~ m/^([^<]+) </) {
 905                                 $co{'author_name'} = $1;
 906                         } else {
 907                                 $co{'author_name'} = $co{'author'};
 908                         }
 909                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 910                         $co{'committer'} = $1;
 911                         $co{'committer_epoch'} = $2;
 912                         $co{'committer_tz'} = $3;
 913                         $co{'committer_name'} = $co{'committer'};
 914                         $co{'committer_name'} =~ s/ <.*//;
 915                 }
 916         }
 917         if (!defined $co{'tree'}) {
 918                 return;
 919         };
 920
 921         foreach my $title (@commit_lines) {
 922                 $title =~ s/^    //;
 923                 if ($title ne "") {
 924                         $co{'title'} = chop_str($title, 80, 5);
 925                         # remove leading stuff of merges to make the interesting part visible
 926                         if (length($title) > 50) {
 927                                 $title =~ s/^Automatic //;
 928                                 $title =~ s/^merge (of|with) /Merge ... /i;
 929                                 if (length($title) > 50) {
 930                                         $title =~ s/(http|rsync):\/\///;
 931                                 }
 932                                 if (length($title) > 50) {
 933                                         $title =~ s/(master|www|rsync)\.//;
 934                                 }
 935                                 if (length($title) > 50) {
 936                                         $title =~ s/kernel.org:?//;
 937                                 }
 938                                 if (length($title) > 50) {
 939                                         $title =~ s/\/pub\/scm//;
 940                                 }
 941                         }
 942                         $co{'title_short'} = chop_str($title, 50, 5);
 943                         last;
 944                 }
 945         }
 946         # remove added spaces
 947         foreach my $line (@commit_lines) {
 948                 $line =~ s/^    //;
 949         }
 950         $co{'comment'} = \@commit_lines;
 951
 952         my $age = time - $co{'committer_epoch'};
 953         $co{'age'} = $age;
 954         $co{'age_string'} = age_string($age);
 955         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 956         if ($age > 60*60*24*7*2) {
 957                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 958                 $co{'age_string_age'} = $co{'age_string'};
 959         } else {
 960                 $co{'age_string_date'} = $co{'age_string'};
 961                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 962         }
 963         return %co;
 964 }
 965
 966 # parse ref from ref_file, given by ref_id, with given type
 967 sub parse_ref {
 968         my $ref_file = shift;
 969         my $ref_id = shift;
 970         my $type = shift || git_get_type($ref_id);
 971         my %ref_item;
 972
 973         $ref_item{'type'} = $type;
 974         $ref_item{'id'} = $ref_id;
 975         $ref_item{'epoch'} = 0;
 976         $ref_item{'age'} = "unknown";
 977         if ($type eq "tag") {
 978                 my %tag = parse_tag($ref_id);
 979                 $ref_item{'comment'} = $tag{'comment'};
 980                 if ($tag{'type'} eq "commit") {
 981                         my %co = parse_commit($tag{'object'});
 982                         $ref_item{'epoch'} = $co{'committer_epoch'};
 983                         $ref_item{'age'} = $co{'age_string'};
 984                 } elsif (defined($tag{'epoch'})) {
 985                         my $age = time - $tag{'epoch'};
 986                         $ref_item{'epoch'} = $tag{'epoch'};
 987                         $ref_item{'age'} = age_string($age);
 988                 }
 989                 $ref_item{'reftype'} = $tag{'type'};
 990                 $ref_item{'name'} = $tag{'name'};
 991                 $ref_item{'refid'} = $tag{'object'};
 992         } elsif ($type eq "commit"){
 993                 my %co = parse_commit($ref_id);
 994                 $ref_item{'reftype'} = "commit";
 995                 $ref_item{'name'} = $ref_file;
 996                 $ref_item{'title'} = $co{'title'};
 997                 $ref_item{'refid'} = $ref_id;
 998                 $ref_item{'epoch'} = $co{'committer_epoch'};
 999                 $ref_item{'age'} = $co{'age_string'};
1000         } else {
1001                 $ref_item{'reftype'} = $type;
1002                 $ref_item{'name'} = $ref_file;
1003                 $ref_item{'refid'} = $ref_id;
1004         }
1005
1006         return %ref_item;
1007 }
1008
1009 # parse line of git-diff-tree "raw" output
1010 sub parse_difftree_raw_line {
1011         my $line = shift;
1012         my %res;
1013
1014         # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1015         # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1016         if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1017                 $res{'from_mode'} = $1;
1018                 $res{'to_mode'} = $2;
1019                 $res{'from_id'} = $3;
1020                 $res{'to_id'} = $4;
1021                 $res{'status'} = $5;
1022                 $res{'similarity'} = $6;
1023                 if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1024                         ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1025                 } else {
1026                         $res{'file'} = unquote($7);
1027                 }
1028         }
1029         # 'c512b523472485aef4fff9e57b229d9d243c967f'
1030         #elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1031         #       $res{'commit'} = $1;
1032         #}
1033
1034         return wantarray ? %res : \%res;
1035 }
1036
1037 # parse line of git-ls-tree output
1038 sub parse_ls_tree_line ($;%) {
1039         my $line = shift;
1040         my %opts = @_;
1041         my %res;
1042
1043         #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1044         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1045
1046         $res{'mode'} = $1;
1047         $res{'type'} = $2;
1048         $res{'hash'} = $3;
1049         if ($opts{'-z'}) {
1050                 $res{'name'} = $4;
1051         } else {
1052                 $res{'name'} = unquote($4);
1053         }
1054
1055         return wantarray ? %res : \%res;
1056 }
1057
1058 ## ......................................................................
1059 ## parse to array of hashes functions
1060
1061 sub git_get_refs_list {
1062         my $ref_dir = shift;
1063         my @reflist;
1064
1065         my @refs;
1066         my $pfxlen = length("$projectroot/$project/$ref_dir");
1067         File::Find::find(sub {
1068                 return if (/^\./);
1069                 if (-f $_) {
1070                         push @refs, substr($File::Find::name, $pfxlen + 1);
1071                 }
1072         }, "$projectroot/$project/$ref_dir");
1073
1074         foreach my $ref_file (@refs) {
1075                 my $ref_id = git_get_hash_by_ref("$project/$ref_dir/$ref_file");
1076                 my $type = git_get_type($ref_id) || next;
1077                 my %ref_item = parse_ref($ref_file, $ref_id, $type);
1078
1079                 push @reflist, \%ref_item;
1080         }
1081         # sort refs by age
1082         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
1083         return \@reflist;
1084 }
1085
1086 ## ----------------------------------------------------------------------
1087 ## filesystem-related functions
1088
1089 sub get_file_owner {
1090         my $path = shift;
1091
1092         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1093         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1094         if (!defined $gcos) {
1095                 return undef;
1096         }
1097         my $owner = $gcos;
1098         $owner =~ s/[,;].*$//;
1099         return decode("utf8", $owner, Encode::FB_DEFAULT);
1100 }
1101
1102 ## ......................................................................
1103 ## mimetype related functions
1104
1105 sub mimetype_guess_file {
1106         my $filename = shift;
1107         my $mimemap = shift;
1108         -r $mimemap or return undef;
1109
1110         my %mimemap;
1111         open(MIME, $mimemap) or return undef;
1112         while (<MIME>) {
1113                 next if m/^#/; # skip comments
1114                 my ($mime, $exts) = split(/\t+/);
1115                 if (defined $exts) {
1116                         my @exts = split(/\s+/, $exts);
1117                         foreach my $ext (@exts) {
1118                                 $mimemap{$ext} = $mime;
1119                         }
1120                 }
1121         }
1122         close(MIME);
1123
1124         $filename =~ /\.(.*?)$/;
1125         return $mimemap{$1};
1126 }
1127
1128 sub mimetype_guess {
1129         my $filename = shift;
1130         my $mime;
1131         $filename =~ /\./ or return undef;
1132
1133         if ($mimetypes_file) {
1134                 my $file = $mimetypes_file;
1135                 if ($file !~ m!^/!) { # if it is relative path
1136                         # it is relative to project
1137                         $file = "$projectroot/$project/$file";
1138                 }
1139                 $mime = mimetype_guess_file($filename, $file);
1140         }
1141         $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1142         return $mime;
1143 }
1144
1145 sub blob_mimetype {
1146         my $fd = shift;
1147         my $filename = shift;
1148
1149         if ($filename) {
1150                 my $mime = mimetype_guess($filename);
1151                 $mime and return $mime;
1152         }
1153
1154         # just in case
1155         return $default_blob_plain_mimetype unless $fd;
1156
1157         if (-T $fd) {
1158                 return 'text/plain' .
1159                        ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1160         } elsif (! $filename) {
1161                 return 'application/octet-stream';
1162         } elsif ($filename =~ m/\.png$/i) {
1163                 return 'image/png';
1164         } elsif ($filename =~ m/\.gif$/i) {
1165                 return 'image/gif';
1166         } elsif ($filename =~ m/\.jpe?g$/i) {
1167                 return 'image/jpeg';
1168         } else {
1169                 return 'application/octet-stream';
1170         }
1171 }
1172
1173 ## ======================================================================
1174 ## functions printing HTML: header, footer, error page
1175
1176 sub git_header_html {
1177         my $status = shift || "200 OK";
1178         my $expires = shift;
1179
1180         my $title = "$site_name git";
1181         if (defined $project) {
1182                 $title .= " - $project";
1183                 if (defined $action) {
1184                         $title .= "/$action";
1185                         if (defined $file_name) {
1186                                 $title .= " - $file_name";
1187                                 if ($action eq "tree" && $file_name !~ m|/$|) {
1188                                         $title .= "/";
1189                                 }
1190                         }
1191                 }
1192         }
1193         my $content_type;
1194         # require explicit support from the UA if we are to send the page as
1195         # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1196         # we have to do this because MSIE sometimes globs '*/*', pretending to
1197         # support xhtml+xml but choking when it gets what it asked for.
1198         if (defined $cgi->http('HTTP_ACCEPT') &&
1199             $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1200             $cgi->Accept('application/xhtml+xml') != 0) {
1201                 $content_type = 'application/xhtml+xml';
1202         } else {
1203                 $content_type = 'text/html';
1204         }
1205         print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1206                            -status=> $status, -expires => $expires);
1207         print <<EOF;
1208 <?xml version="1.0" encoding="utf-8"?>
1209 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1210 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1211 <!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1212 <!-- git core binaries version $git_version -->
1213 <head>
1214 <meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1215 <meta name="generator" content="gitweb/$version git/$git_version"/>
1216 <meta name="robots" content="index, nofollow"/>
1217 <title>$title</title>
1218 <link rel="stylesheet" type="text/css" href="$stylesheet"/>
1219 EOF
1220         if (defined $project) {
1221                 printf('<link rel="alternate" title="%s log" '.
1222                        'href="%s" type="application/rss+xml"/>'."\n",
1223                        esc_param($project), href(action=>"rss"));
1224         }
1225
1226         print "</head>\n" .
1227               "<body>\n" .
1228               "<div class=\"page_header\">\n" .
1229               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1230               "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1231               "</a>\n";
1232         print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1233         if (defined $project) {
1234                 print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1235                 if (defined $action) {
1236                         print " / $action";
1237                 }
1238                 print "\n";
1239                 if (!defined $searchtext) {
1240                         $searchtext = "";
1241                 }
1242                 my $search_hash;
1243                 if (defined $hash_base) {
1244                         $search_hash = $hash_base;
1245                 } elsif (defined $hash) {
1246                         $search_hash = $hash;
1247                 } else {
1248                         $search_hash = "HEAD";
1249                 }
1250                 $cgi->param("a", "search");
1251                 $cgi->param("h", $search_hash);
1252                 print $cgi->startform(-method => "get", -action => $my_uri) .
1253                       "<div class=\"search\">\n" .
1254                       $cgi->hidden(-name => "p") . "\n" .
1255                       $cgi->hidden(-name => "a") . "\n" .
1256                       $cgi->hidden(-name => "h") . "\n" .
1257                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1258                       "</div>" .
1259                       $cgi->end_form() . "\n";
1260         }
1261         print "</div>\n";
1262 }
1263
1264 sub git_footer_html {
1265         print "<div class=\"page_footer\">\n";
1266         if (defined $project) {
1267                 my $descr = git_get_project_description($project);
1268                 if (defined $descr) {
1269                         print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1270                 }
1271                 print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
1272         } else {
1273                 print $cgi->a({-href => href(action=>"opml"), -class => "rss_logo"}, "OPML") . "\n";
1274         }
1275         print "</div>\n" .
1276               "</body>\n" .
1277               "</html>";
1278 }
1279
1280 sub die_error {
1281         my $status = shift || "403 Forbidden";
1282         my $error = shift || "Malformed query, file missing or permission denied";
1283
1284         git_header_html($status);
1285         print <<EOF;
1286 <div class="page_body">
1287 <br /><br />
1288 $status - $error
1289 <br />
1290 </div>
1291 EOF
1292         git_footer_html();
1293         exit;
1294 }
1295
1296 ## ----------------------------------------------------------------------
1297 ## functions printing or outputting HTML: navigation
1298
1299 sub git_print_page_nav {
1300         my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1301         $extra = '' if !defined $extra; # pager or formats
1302
1303         my @navs = qw(summary shortlog log commit commitdiff tree);
1304         if ($suppress) {
1305                 @navs = grep { $_ ne $suppress } @navs;
1306         }
1307
1308         my %arg = map { $_ => {action=>$_} } @navs;
1309         if (defined $head) {
1310                 for (qw(commit commitdiff)) {
1311                         $arg{$_}{hash} = $head;
1312                 }
1313                 if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1314                         for (qw(shortlog log)) {
1315                                 $arg{$_}{hash} = $head;
1316                         }
1317                 }
1318         }
1319         $arg{tree}{hash} = $treehead if defined $treehead;
1320         $arg{tree}{hash_base} = $treebase if defined $treebase;
1321
1322         print "<div class=\"page_nav\">\n" .
1323                 (join " | ",
1324                  map { $_ eq $current ?
1325                        $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1326                  } @navs);
1327         print "<br/>\n$extra<br/>\n" .
1328               "</div>\n";
1329 }
1330
1331 sub format_paging_nav {
1332         my ($action, $hash, $head, $page, $nrevs) = @_;
1333         my $paging_nav;
1334
1335
1336         if ($hash ne $head || $page) {
1337                 $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1338         } else {
1339                 $paging_nav .= "HEAD";
1340         }
1341
1342         if ($page > 0) {
1343                 $paging_nav .= " &sdot; " .
1344                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1345                                  -accesskey => "p", -title => "Alt-p"}, "prev");
1346         } else {
1347                 $paging_nav .= " &sdot; prev";
1348         }
1349
1350         if ($nrevs >= (100 * ($page+1)-1)) {
1351                 $paging_nav .= " &sdot; " .
1352                         $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1353                                  -accesskey => "n", -title => "Alt-n"}, "next");
1354         } else {
1355                 $paging_nav .= " &sdot; next";
1356         }
1357
1358         return $paging_nav;
1359 }
1360
1361 ## ......................................................................
1362 ## functions printing or outputting HTML: div
1363
1364 sub git_print_header_div {
1365         my ($action, $title, $hash, $hash_base) = @_;
1366         my %args = ();
1367
1368         $args{action} = $action;
1369         $args{hash} = $hash if $hash;
1370         $args{hash_base} = $hash_base if $hash_base;
1371
1372         print "<div class=\"header\">\n" .
1373               $cgi->a({-href => href(%args), -class => "title"},
1374               $title ? $title : $action) .
1375               "\n</div>\n";
1376 }
1377
1378 #sub git_print_authorship (\%) {
1379 sub git_print_authorship {
1380         my $co = shift;
1381
1382         my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1383         print "<div class=\"author_date\">" .
1384               esc_html($co->{'author_name'}) .
1385               " [$ad{'rfc2822'}";
1386         if ($ad{'hour_local'} < 6) {
1387                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1388                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1389         } else {
1390                 printf(" (%02d:%02d %s)",
1391                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1392         }
1393         print "]</div>\n";
1394 }
1395
1396 sub git_print_page_path {
1397         my $name = shift;
1398         my $type = shift;
1399         my $hb = shift;
1400
1401         if (!defined $name) {
1402                 print "<div class=\"page_path\">/</div>\n";
1403         } elsif (defined $type && $type eq 'blob') {
1404                 print "<div class=\"page_path\">";
1405                 if (defined $hb) {
1406                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1407                                                      hash_base=>$hb)},
1408                                       esc_html($name));
1409                 } else {
1410                         print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)},
1411                                       esc_html($name));
1412                 }
1413                 print "<br/></div>\n";
1414         } else {
1415                 print "<div class=\"page_path\">" . esc_html($name) . "<br/></div>\n";
1416         }
1417 }
1418
1419 # sub git_print_log (\@;%) {
1420 sub git_print_log ($;%) {
1421         my $log = shift;
1422         my %opts = @_;
1423
1424         if ($opts{'-remove_title'}) {
1425                 # remove title, i.e. first line of log
1426                 shift @$log;
1427         }
1428         # remove leading empty lines
1429         while (defined $log->[0] && $log->[0] eq "") {
1430                 shift @$log;
1431         }
1432
1433         # print log
1434         my $signoff = 0;
1435         my $empty = 0;
1436         foreach my $line (@$log) {
1437                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1438                         $signoff = 1;
1439                         $empty = 0;
1440                         if (! $opts{'-remove_signoff'}) {
1441                                 print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1442                                 next;
1443                         } else {
1444                                 # remove signoff lines
1445                                 next;
1446                         }
1447                 } else {
1448                         $signoff = 0;
1449                 }
1450
1451                 # print only one empty line
1452                 # do not print empty line after signoff
1453                 if ($line eq "") {
1454                         next if ($empty || $signoff);
1455                         $empty = 1;
1456                 } else {
1457                         $empty = 0;
1458                 }
1459
1460                 print format_log_line_html($line) . "<br/>\n";
1461         }
1462
1463         if ($opts{'-final_empty_line'}) {
1464                 # end with single empty line
1465                 print "<br/>\n" unless $empty;
1466         }
1467 }
1468
1469 sub git_print_simplified_log {
1470         my $log = shift;
1471         my $remove_title = shift;
1472
1473         git_print_log($log,
1474                 -final_empty_line=> 1,
1475                 -remove_title => $remove_title);
1476 }
1477
1478 ## ......................................................................
1479 ## functions printing large fragments of HTML
1480
1481 sub git_difftree_body {
1482         my ($difftree, $hash, $parent) = @_;
1483
1484         print "<div class=\"list_head\">\n";
1485         if ($#{$difftree} > 10) {
1486                 print(($#{$difftree} + 1) . " files changed:\n");
1487         }
1488         print "</div>\n";
1489
1490         print "<table class=\"diff_tree\">\n";
1491         my $alternate = 0;
1492         my $patchno = 0;
1493         foreach my $line (@{$difftree}) {
1494                 my %diff = parse_difftree_raw_line($line);
1495
1496                 if ($alternate) {
1497                         print "<tr class=\"dark\">\n";
1498                 } else {
1499                         print "<tr class=\"light\">\n";
1500                 }
1501                 $alternate ^= 1;
1502
1503                 my ($to_mode_oct, $to_mode_str, $to_file_type);
1504                 my ($from_mode_oct, $from_mode_str, $from_file_type);
1505                 if ($diff{'to_mode'} ne ('0' x 6)) {
1506                         $to_mode_oct = oct $diff{'to_mode'};
1507                         if (S_ISREG($to_mode_oct)) { # only for regular file
1508                                 $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1509                         }
1510                         $to_file_type = file_type($diff{'to_mode'});
1511                 }
1512                 if ($diff{'from_mode'} ne ('0' x 6)) {
1513                         $from_mode_oct = oct $diff{'from_mode'};
1514                         if (S_ISREG($to_mode_oct)) { # only for regular file
1515                                 $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1516                         }
1517                         $from_file_type = file_type($diff{'from_mode'});
1518                 }
1519
1520                 if ($diff{'status'} eq "A") { # created
1521                         my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1522                         $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1523                         $mode_chng   .= "]</span>";
1524                         print "<td>" .
1525                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1526                                                      hash_base=>$hash, file_name=>$diff{'file'}),
1527                                       -class => "list"}, esc_html($diff{'file'})) .
1528                               "</td>\n" .
1529                               "<td>$mode_chng</td>\n" .
1530                               "<td class=\"link\">" .
1531                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1532                                                      hash_base=>$hash, file_name=>$diff{'file'})},
1533                                       "blob");
1534                         if ($action == "commitdiff") {
1535                                 # link to patch
1536                                 $patchno++;
1537                                 print " | " .
1538                                       $cgi->a({-href => "#patch$patchno"}, "patch");
1539                         }
1540                         print "</td>\n";
1541
1542                 } elsif ($diff{'status'} eq "D") { # deleted
1543                         my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1544                         print "<td>" .
1545                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1546                                                      hash_base=>$parent, file_name=>$diff{'file'}),
1547                                        -class => "list"}, esc_html($diff{'file'})) .
1548                               "</td>\n" .
1549                               "<td>$mode_chng</td>\n" .
1550                               "<td class=\"link\">" .
1551                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1552                                                      hash_base=>$parent, file_name=>$diff{'file'})},
1553                                       "blob") .
1554                               " | ";
1555                         if ($action == "commitdiff") {
1556                                 # link to patch
1557                                 $patchno++;
1558                                 print " | " .
1559                                       $cgi->a({-href => "#patch$patchno"}, "patch");
1560                         }
1561                         print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1562                                                      file_name=>$diff{'file'})},
1563                                       "history") .
1564                               "</td>\n";
1565
1566                 } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1567                         my $mode_chnge = "";
1568                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1569                                 $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
1570                                 if ($from_file_type != $to_file_type) {
1571                                         $mode_chnge .= " from $from_file_type to $to_file_type";
1572                                 }
1573                                 if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
1574                                         if ($from_mode_str && $to_mode_str) {
1575                                                 $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
1576                                         } elsif ($to_mode_str) {
1577                                                 $mode_chnge .= " mode: $to_mode_str";
1578                                         }
1579                                 }
1580                                 $mode_chnge .= "]</span>\n";
1581                         }
1582                         print "<td>";
1583                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1584                                 print $cgi->a({-href => href(action=>"blobdiff",
1585                                                              hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1586                                                              hash_base=>$hash, hash_parent_base=>$parent,
1587                                                              file_name=>$diff{'file'}),
1588                                               -class => "list"}, esc_html($diff{'file'}));
1589                         } else { # only mode changed
1590                                 print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1591                                                              hash_base=>$hash, file_name=>$diff{'file'}),
1592                                               -class => "list"}, esc_html($diff{'file'}));
1593                         }
1594                         print "</td>\n" .
1595                               "<td>$mode_chnge</td>\n" .
1596                               "<td class=\"link\">" .
1597                               $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1598                                                      hash_base=>$hash, file_name=>$diff{'file'})},
1599                                       "blob");
1600                         if ($diff{'to_id'} ne $diff{'from_id'}) { # modified
1601                                 if ($action == "commitdiff") {
1602                                         # link to patch
1603                                         $patchno++;
1604                                         print " | " .
1605                                                 $cgi->a({-href => "#patch$patchno"}, "patch");
1606                                 } else {
1607                                         print " | " .
1608                                                 $cgi->a({-href => href(action=>"blobdiff",
1609                                                                        hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1610                                                                        hash_base=>$hash, hash_parent_base=>$parent,
1611                                                                        file_name=>$diff{'file'})},
1612                                                         "diff");
1613                                 }
1614                         }
1615                         print " | " .
1616                                 $cgi->a({-href => href(action=>"history",
1617                                                        hash_base=>$hash, file_name=>$diff{'file'})},
1618                                         "history");
1619                         print "</td>\n";
1620
1621                 } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
1622                         my %status_name = ('R' => 'moved', 'C' => 'copied');
1623                         my $nstatus = $status_name{$diff{'status'}};
1624                         my $mode_chng = "";
1625                         if ($diff{'from_mode'} != $diff{'to_mode'}) {
1626                                 # mode also for directories, so we cannot use $to_mode_str
1627                                 $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
1628                         }
1629                         print "<td>" .
1630                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1631                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
1632                                       -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
1633                               "<td><span class=\"file_status $nstatus\">[$nstatus from " .
1634                               $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
1635                                                      hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
1636                                       -class => "list"}, esc_html($diff{'from_file'})) .
1637                               " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
1638                               "<td class=\"link\">" .
1639                               $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1640                                                      hash=>$diff{'to_id'}, file_name=>$diff{'to_file'})},
1641                                       "blob");
1642                         if ($diff{'to_id'} ne $diff{'from_id'}) {
1643                                 if ($action == "commitdiff") {
1644                                         # link to patch
1645                                         $patchno++;
1646                                         print " | " .
1647                                                 $cgi->a({-href => "#patch$patchno"}, "patch");
1648                                 } else {
1649                                         print " | " .
1650                                                 $cgi->a({-href => href(action=>"blobdiff",
1651                                                                        hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
1652                                                                        hash_base=>$hash, hash_parent_base=>$parent,
1653                                                                        file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
1654                                                         "diff");
1655                                 }
1656                         }
1657                         print "</td>\n";
1658
1659                 } # we should not encounter Unmerged (U) or Unknown (X) status
1660                 print "</tr>\n";
1661         }
1662         print "</table>\n";
1663 }
1664
1665 sub git_patchset_body {
1666         my ($fd, $difftree, $hash, $hash_parent) = @_;
1667
1668         my $patch_idx = 0;
1669         my $in_header = 0;
1670         my $patch_found = 0;
1671         my $diffinfo;
1672
1673         print "<div class=\"patchset\">\n";
1674
1675         LINE:
1676         while (my $patch_line = <$fd>) {
1677                 chomp $patch_line;
1678
1679                 if ($patch_line =~ m/^diff /) { # "git diff" header
1680                         # beginning of patch (in patchset)
1681                         if ($patch_found) {
1682                                 # close previous patch
1683                                 print "</div>\n"; # class="patch"
1684                         } else {
1685                                 # first patch in patchset
1686                                 $patch_found = 1;
1687                         }
1688                         print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
1689
1690                         if (ref($difftree->[$patch_idx]) eq "HASH") {
1691                                 $diffinfo = $difftree->[$patch_idx];
1692                         } else {
1693                                 $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
1694                         }
1695                         $patch_idx++;
1696
1697                         # for now, no extended header, hence we skip empty patches
1698                         # companion to  next LINE if $in_header;
1699                         if ($diffinfo->{'from_id'} eq $diffinfo->{'to_id'}) { # no change
1700                                 $in_header = 1;
1701                                 next LINE;
1702                         }
1703
1704                         if ($diffinfo->{'status'} eq "A") { # added
1705                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
1706                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1707                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1708                                               $diffinfo->{'to_id'}) . "(new)" .
1709                                       "</div>\n"; # class="diff_info"
1710
1711                         } elsif ($diffinfo->{'status'} eq "D") { # deleted
1712                                 print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
1713                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1714                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1715                                               $diffinfo->{'from_id'}) . "(deleted)" .
1716                                       "</div>\n"; # class="diff_info"
1717
1718                         } elsif ($diffinfo->{'status'} eq "R" || # renamed
1719                                  $diffinfo->{'status'} eq "C" || # copied
1720                                  $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
1721                                 print "<div class=\"diff_info\">" .
1722                                       file_type($diffinfo->{'from_mode'}) . ":" .
1723                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1724                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
1725                                               $diffinfo->{'from_id'}) .
1726                                       " -> " .
1727                                       file_type($diffinfo->{'to_mode'}) . ":" .
1728                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1729                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
1730                                               $diffinfo->{'to_id'});
1731                                 print "</div>\n"; # class="diff_info"
1732
1733                         } else { # modified, mode changed, ...
1734                                 print "<div class=\"diff_info\">" .
1735                                       file_type($diffinfo->{'from_mode'}) . ":" .
1736                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1737                                                              hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
1738                                               $diffinfo->{'from_id'}) .
1739                                       " -> " .
1740                                       file_type($diffinfo->{'to_mode'}) . ":" .
1741                                       $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1742                                                              hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
1743                                               $diffinfo->{'to_id'});
1744                                 print "</div>\n"; # class="diff_info"
1745                         }
1746
1747                         #print "<div class=\"diff extended_header\">\n";
1748                         $in_header = 1;
1749                         next LINE;
1750                 } # start of patch in patchset
1751
1752
1753                 if ($in_header && $patch_line =~ m/^---/) {
1754                         #print "</div>\n"; # class="diff extended_header"
1755                         $in_header = 0;
1756
1757                         my $file = $diffinfo->{'from_file'};
1758                         $file  ||= $diffinfo->{'file'};
1759                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
1760                                                        hash=>$diffinfo->{'from_id'}, file_name=>$file),
1761                                         -class => "list"}, esc_html($file));
1762                         $patch_line =~ s|a/.*$|a/$file|g;
1763                         print "<div class=\"diff from_file\">$patch_line</div>\n";
1764
1765                         $patch_line = <$fd>;
1766                         chomp $patch_line;
1767
1768                         #$patch_line =~ m/^+++/;
1769                         $file    = $diffinfo->{'to_file'};
1770                         $file  ||= $diffinfo->{'file'};
1771                         $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
1772                                                        hash=>$diffinfo->{'to_id'}, file_name=>$file),
1773                                         -class => "list"}, esc_html($file));
1774                         $patch_line =~ s|b/.*|b/$file|g;
1775                         print "<div class=\"diff to_file\">$patch_line</div>\n";
1776
1777                         next LINE;
1778                 }
1779                 next LINE if $in_header;
1780
1781                 print format_diff_line($patch_line);
1782         }
1783         print "</div>\n" if $patch_found; # class="patch"
1784
1785         print "</div>\n"; # class="patchset"
1786 }
1787
1788 # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1789
1790 sub git_shortlog_body {
1791         # uses global variable $project
1792         my ($revlist, $from, $to, $refs, $extra) = @_;
1793
1794         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
1795         my $have_snapshot = (defined $ctype && defined $suffix);
1796
1797         $from = 0 unless defined $from;
1798         $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1799
1800         print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1801         my $alternate = 0;
1802         for (my $i = $from; $i <= $to; $i++) {
1803                 my $commit = $revlist->[$i];
1804                 #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1805                 my $ref = format_ref_marker($refs, $commit);
1806                 my %co = parse_commit($commit);
1807                 if ($alternate) {
1808                         print "<tr class=\"dark\">\n";
1809                 } else {
1810                         print "<tr class=\"light\">\n";
1811                 }
1812                 $alternate ^= 1;
1813                 # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1814                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1815                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1816                       "<td>";
1817                 print format_subject_html($co{'title'}, $co{'title_short'},
1818                                           href(action=>"commit", hash=>$commit), $ref);
1819                 print "</td>\n" .
1820                       "<td class=\"link\">" .
1821                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1822                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
1823                 if ($have_snapshot) {
1824                         print " | " .  $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
1825                 }
1826                 print "</td>\n" .
1827                       "</tr>\n";
1828         }
1829         if (defined $extra) {
1830                 print "<tr>\n" .
1831                       "<td colspan=\"4\">$extra</td>\n" .
1832                       "</tr>\n";
1833         }
1834         print "</table>\n";
1835 }
1836
1837 sub git_history_body {
1838         # Warning: assumes constant type (blob or tree) during history
1839         my ($fd, $refs, $hash_base, $ftype, $extra) = @_;
1840
1841         print "<table class=\"history\" cellspacing=\"0\">\n";
1842         my $alternate = 0;
1843         while (my $line = <$fd>) {
1844                 if ($line !~ m/^([0-9a-fA-F]{40})/) {
1845                         next;
1846                 }
1847
1848                 my $commit = $1;
1849                 my %co = parse_commit($commit);
1850                 if (!%co) {
1851                         next;
1852                 }
1853
1854                 my $ref = format_ref_marker($refs, $commit);
1855
1856                 if ($alternate) {
1857                         print "<tr class=\"dark\">\n";
1858                 } else {
1859                         print "<tr class=\"light\">\n";
1860                 }
1861                 $alternate ^= 1;
1862                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1863                       # shortlog uses      chop_str($co{'author_name'}, 10)
1864                       "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
1865                       "<td>";
1866                 # originally git_history used chop_str($co{'title'}, 50)
1867                 print format_subject_html($co{'title'}, $co{'title_short'},
1868                                           href(action=>"commit", hash=>$commit), $ref);
1869                 print "</td>\n" .
1870                       "<td class=\"link\">" .
1871                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1872                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
1873                       $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
1874
1875                 if ($ftype eq 'blob') {
1876                         my $blob_current = git_get_hash_by_path($hash_base, $file_name);
1877                         my $blob_parent  = git_get_hash_by_path($commit, $file_name);
1878                         if (defined $blob_current && defined $blob_parent &&
1879                                         $blob_current ne $blob_parent) {
1880                                 print " | " .
1881                                         $cgi->a({-href => href(action=>"blobdiff",
1882                                                                hash=>$blob_current, hash_parent=>$blob_parent,
1883                                                                hash_base=>$hash_base, hash_parent_base=>$commit,
1884                                                                file_name=>$file_name)},
1885                                                 "diff to current");
1886                         }
1887                 }
1888                 print "</td>\n" .
1889                       "</tr>\n";
1890         }
1891         if (defined $extra) {
1892                 print "<tr>\n" .
1893                       "<td colspan=\"4\">$extra</td>\n" .
1894                       "</tr>\n";
1895         }
1896         print "</table>\n";
1897 }
1898
1899 sub git_tags_body {
1900         # uses global variable $project
1901         my ($taglist, $from, $to, $extra) = @_;
1902         $from = 0 unless defined $from;
1903         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1904
1905         print "<table class=\"tags\" cellspacing=\"0\">\n";
1906         my $alternate = 0;
1907         for (my $i = $from; $i <= $to; $i++) {
1908                 my $entry = $taglist->[$i];
1909                 my %tag = %$entry;
1910                 my $comment_lines = $tag{'comment'};
1911                 my $comment = shift @$comment_lines;
1912                 my $comment_short;
1913                 if (defined $comment) {
1914                         $comment_short = chop_str($comment, 30, 5);
1915                 }
1916                 if ($alternate) {
1917                         print "<tr class=\"dark\">\n";
1918                 } else {
1919                         print "<tr class=\"light\">\n";
1920                 }
1921                 $alternate ^= 1;
1922                 print "<td><i>$tag{'age'}</i></td>\n" .
1923                       "<td>" .
1924                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
1925                                -class => "list name"}, esc_html($tag{'name'})) .
1926                       "</td>\n" .
1927                       "<td>";
1928                 if (defined $comment) {
1929                         print format_subject_html($comment, $comment_short,
1930                                                   href(action=>"tag", hash=>$tag{'id'}));
1931                 }
1932                 print "</td>\n" .
1933                       "<td class=\"selflink\">";
1934                 if ($tag{'type'} eq "tag") {
1935                         print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
1936                 } else {
1937                         print "&nbsp;";
1938                 }
1939                 print "</td>\n" .
1940                       "<td class=\"link\">" . " | " .
1941                       $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
1942                 if ($tag{'reftype'} eq "commit") {
1943                         print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
1944                               " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
1945                 } elsif ($tag{'reftype'} eq "blob") {
1946                         print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
1947                 }
1948                 print "</td>\n" .
1949                       "</tr>";
1950         }
1951         if (defined $extra) {
1952                 print "<tr>\n" .
1953                       "<td colspan=\"5\">$extra</td>\n" .
1954                       "</tr>\n";
1955         }
1956         print "</table>\n";
1957 }
1958
1959 sub git_heads_body {
1960         # uses global variable $project
1961         my ($taglist, $head, $from, $to, $extra) = @_;
1962         $from = 0 unless defined $from;
1963         $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1964
1965         print "<table class=\"heads\" cellspacing=\"0\">\n";
1966         my $alternate = 0;
1967         for (my $i = $from; $i <= $to; $i++) {
1968                 my $entry = $taglist->[$i];
1969                 my %tag = %$entry;
1970                 my $curr = $tag{'id'} eq $head;
1971                 if ($alternate) {
1972                         print "<tr class=\"dark\">\n";
1973                 } else {
1974                         print "<tr class=\"light\">\n";
1975                 }
1976                 $alternate ^= 1;
1977                 print "<td><i>$tag{'age'}</i></td>\n" .
1978                       ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
1979                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
1980                                -class => "list name"},esc_html($tag{'name'})) .
1981                       "</td>\n" .
1982                       "<td class=\"link\">" .
1983                       $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
1984                       $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
1985                       "</td>\n" .
1986                       "</tr>";
1987         }
1988         if (defined $extra) {
1989                 print "<tr>\n" .
1990                       "<td colspan=\"3\">$extra</td>\n" .
1991                       "</tr>\n";
1992         }
1993         print "</table>\n";
1994 }
1995
1996 ## ======================================================================
1997 ## ======================================================================
1998 ## actions
1999
2000 sub git_project_list {
2001         my $order = $cgi->param('o');
2002         if (defined $order && $order !~ m/project|descr|owner|age/) {
2003                 die_error(undef, "Unknown order parameter");
2004         }
2005
2006         my @list = git_get_projects_list();
2007         my @projects;
2008         if (!@list) {
2009                 die_error(undef, "No projects found");
2010         }
2011         foreach my $pr (@list) {
2012                 my $head = git_get_head_hash($pr->{'path'});
2013                 if (!defined $head) {
2014                         next;
2015                 }
2016                 $git_dir = "$projectroot/$pr->{'path'}";
2017                 my %co = parse_commit($head);
2018                 if (!%co) {
2019                         next;
2020                 }
2021                 $pr->{'commit'} = \%co;
2022                 if (!defined $pr->{'descr'}) {
2023                         my $descr = git_get_project_description($pr->{'path'}) || "";
2024                         $pr->{'descr'} = chop_str($descr, 25, 5);
2025                 }
2026                 if (!defined $pr->{'owner'}) {
2027                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2028                 }
2029                 push @projects, $pr;
2030         }
2031
2032         git_header_html();
2033         if (-f $home_text) {
2034                 print "<div class=\"index_include\">\n";
2035                 open (my $fd, $home_text);
2036                 print <$fd>;
2037                 close $fd;
2038                 print "</div>\n";
2039         }
2040         print "<table class=\"project_list\">\n" .
2041               "<tr>\n";
2042         $order ||= "project";
2043         if ($order eq "project") {
2044                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2045                 print "<th>Project</th>\n";
2046         } else {
2047                 print "<th>" .
2048                       $cgi->a({-href => "$my_uri?" . esc_param("o=project"),
2049                                -class => "header"}, "Project") .
2050                       "</th>\n";
2051         }
2052         if ($order eq "descr") {
2053                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2054                 print "<th>Description</th>\n";
2055         } else {
2056                 print "<th>" .
2057                       $cgi->a({-href => "$my_uri?" . esc_param("o=descr"),
2058                                -class => "header"}, "Description") .
2059                       "</th>\n";
2060         }
2061         if ($order eq "owner") {
2062                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2063                 print "<th>Owner</th>\n";
2064         } else {
2065                 print "<th>" .
2066                       $cgi->a({-href => "$my_uri?" . esc_param("o=owner"),
2067                                -class => "header"}, "Owner") .
2068                       "</th>\n";
2069         }
2070         if ($order eq "age") {
2071                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
2072                 print "<th>Last Change</th>\n";
2073         } else {
2074                 print "<th>" .
2075                       $cgi->a({-href => "$my_uri?" . esc_param("o=age"),
2076                                -class => "header"}, "Last Change") .
2077                       "</th>\n";
2078         }
2079         print "<th></th>\n" .
2080               "</tr>\n";
2081         my $alternate = 0;
2082         foreach my $pr (@projects) {
2083                 if ($alternate) {
2084                         print "<tr class=\"dark\">\n";
2085                 } else {
2086                         print "<tr class=\"light\">\n";
2087                 }
2088                 $alternate ^= 1;
2089                 print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2090                                         -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2091                       "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2092                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2093                 print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
2094                       $pr->{'commit'}{'age_string'} . "</td>\n" .
2095                       "<td class=\"link\">" .
2096                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2097                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2098                       $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
2099                       "</td>\n" .
2100                       "</tr>\n";
2101         }
2102         print "</table>\n";
2103         git_footer_html();
2104 }
2105
2106 sub git_summary {
2107         my $descr = git_get_project_description($project) || "none";
2108         my $head = git_get_head_hash($project);
2109         my %co = parse_commit($head);
2110         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2111
2112         my $owner = git_get_project_owner($project);
2113
2114         my $refs = git_get_references();
2115         git_header_html();
2116         git_print_page_nav('summary','', $head);
2117
2118         print "<div class=\"title\">&nbsp;</div>\n";
2119         print "<table cellspacing=\"0\">\n" .
2120               "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2121               "<tr><td>owner</td><td>$owner</td></tr>\n" .
2122               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2123         # use per project git URL list in $projectroot/$project/cloneurl
2124         # or make project git URL from git base URL and project name
2125         my $url_tag = "URL";
2126         my @url_list = git_get_project_url_list($project);
2127         @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2128         foreach my $git_url (@url_list) {
2129                 next unless $git_url;
2130                 print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2131                 $url_tag = "";
2132         }
2133         print "</table>\n";
2134
2135         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2136                 git_get_head_hash($project)
2137                 or die_error(undef, "Open git-rev-list failed");
2138         my @revlist = map { chomp; $_ } <$fd>;
2139         close $fd;
2140         git_print_header_div('shortlog');
2141         git_shortlog_body(\@revlist, 0, 15, $refs,
2142                           $cgi->a({-href => href(action=>"shortlog")}, "..."));
2143
2144         my $taglist = git_get_refs_list("refs/tags");
2145         if (defined @$taglist) {
2146                 git_print_header_div('tags');
2147                 git_tags_body($taglist, 0, 15,
2148                               $cgi->a({-href => href(action=>"tags")}, "..."));
2149         }
2150
2151         my $headlist = git_get_refs_list("refs/heads");
2152         if (defined @$headlist) {
2153                 git_print_header_div('heads');
2154                 git_heads_body($headlist, $head, 0, 15,
2155                                $cgi->a({-href => href(action=>"heads")}, "..."));
2156         }
2157
2158         git_footer_html();
2159 }
2160
2161 sub git_tag {
2162         my $head = git_get_head_hash($project);
2163         git_header_html();
2164         git_print_page_nav('','', $head,undef,$head);
2165         my %tag = parse_tag($hash);
2166         git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2167         print "<div class=\"title_text\">\n" .
2168               "<table cellspacing=\"0\">\n" .
2169               "<tr>\n" .
2170               "<td>object</td>\n" .
2171               "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2172                                $tag{'object'}) . "</td>\n" .
2173               "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2174                                               $tag{'type'}) . "</td>\n" .
2175               "</tr>\n";
2176         if (defined($tag{'author'})) {
2177                 my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2178                 print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2179                 print "<tr><td></td><td>" . $ad{'rfc2822'} .
2180                         sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2181                         "</td></tr>\n";
2182         }
2183         print "</table>\n\n" .
2184               "</div>\n";
2185         print "<div class=\"page_body\">";
2186         my $comment = $tag{'comment'};
2187         foreach my $line (@$comment) {
2188                 print esc_html($line) . "<br/>\n";
2189         }
2190         print "</div>\n";
2191         git_footer_html();
2192 }
2193
2194 sub git_blame2 {
2195         my $fd;
2196         my $ftype;
2197
2198         if (!gitweb_check_feature('blame')) {
2199                 die_error('403 Permission denied', "Permission denied");
2200         }
2201         die_error('404 Not Found', "File name not defined") if (!$file_name);
2202         $hash_base ||= git_get_head_hash($project);
2203         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2204         my %co = parse_commit($hash_base)
2205                 or die_error(undef, "Reading commit failed");
2206         if (!defined $hash) {
2207                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2208                         or die_error(undef, "Error looking up file");
2209         }
2210         $ftype = git_get_type($hash);
2211         if ($ftype !~ "blob") {
2212                 die_error("400 Bad Request", "Object is not a blob");
2213         }
2214         open ($fd, "-|", git_cmd(), "blame", '-l', $file_name, $hash_base)
2215                 or die_error(undef, "Open git-blame failed");
2216         git_header_html();
2217         my $formats_nav =
2218                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2219                         "blob") .
2220                 " | " .
2221                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2222                         "head");
2223         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2224         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2225         git_print_page_path($file_name, $ftype, $hash_base);
2226         my @rev_color = (qw(light2 dark2));
2227         my $num_colors = scalar(@rev_color);
2228         my $current_color = 0;
2229         my $last_rev;
2230         print <<HTML;
2231 <div class="page_body">
2232 <table class="blame">
2233 <tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2234 HTML
2235         while (<$fd>) {
2236                 /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
2237                 my $full_rev = $1;
2238                 my $rev = substr($full_rev, 0, 8);
2239                 my $lineno = $2;
2240                 my $data = $3;
2241
2242                 if (!defined $last_rev) {
2243                         $last_rev = $full_rev;
2244                 } elsif ($last_rev ne $full_rev) {
2245                         $last_rev = $full_rev;
2246                         $current_color = ++$current_color % $num_colors;
2247                 }
2248                 print "<tr class=\"$rev_color[$current_color]\">\n";
2249                 print "<td class=\"sha1\">" .
2250                         $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)},
2251                                 esc_html($rev)) . "</td>\n";
2252                 print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" .
2253                       esc_html($lineno) . "</a></td>\n";
2254                 print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2255                 print "</tr>\n";
2256         }
2257         print "</table>\n";
2258         print "</div>";
2259         close $fd
2260                 or print "Reading blob failed\n";
2261         git_footer_html();
2262 }
2263
2264 sub git_blame {
2265         my $fd;
2266
2267         if (!gitweb_check_feature('blame')) {
2268                 die_error('403 Permission denied', "Permission denied");
2269         }
2270         die_error('404 Not Found', "File name not defined") if (!$file_name);
2271         $hash_base ||= git_get_head_hash($project);
2272         die_error(undef, "Couldn't find base commit") unless ($hash_base);
2273         my %co = parse_commit($hash_base)
2274                 or die_error(undef, "Reading commit failed");
2275         if (!defined $hash) {
2276                 $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2277                         or die_error(undef, "Error lookup file");
2278         }
2279         open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2280                 or die_error(undef, "Open git-annotate failed");
2281         git_header_html();
2282         my $formats_nav =
2283                 $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2284                         "blob") .
2285                 " | " .
2286                 $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2287                         "head");
2288         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2289         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2290         git_print_page_path($file_name, 'blob', $hash_base);
2291         print "<div class=\"page_body\">\n";
2292         print <<HTML;
2293 <table class="blame">
2294   <tr>
2295     <th>Commit</th>
2296     <th>Age</th>
2297     <th>Author</th>
2298     <th>Line</th>
2299     <th>Data</th>
2300   </tr>
2301 HTML
2302         my @line_class = (qw(light dark));
2303         my $line_class_len = scalar (@line_class);
2304         my $line_class_num = $#line_class;
2305         while (my $line = <$fd>) {
2306                 my $long_rev;
2307                 my $short_rev;
2308                 my $author;
2309                 my $time;
2310                 my $lineno;
2311                 my $data;
2312                 my $age;
2313                 my $age_str;
2314                 my $age_class;
2315
2316                 chomp $line;
2317                 $line_class_num = ($line_class_num + 1) % $line_class_len;
2318
2319                 if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2320                         $long_rev = $1;
2321                         $author   = $2;
2322                         $time     = $3;
2323                         $lineno   = $4;
2324                         $data     = $5;
2325                 } else {
2326                         print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2327                         next;
2328                 }
2329                 $short_rev  = substr ($long_rev, 0, 8);
2330                 $age        = time () - $time;
2331                 $age_str    = age_string ($age);
2332                 $age_str    =~ s/ /&nbsp;/g;
2333                 $age_class  = age_class($age);
2334                 $author     = esc_html ($author);
2335                 $author     =~ s/ /&nbsp;/g;
2336
2337                 $data = untabify($data);
2338                 $data = esc_html ($data);
2339
2340                 print <<HTML;
2341   <tr class="$line_class[$line_class_num]">
2342     <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2343     <td class="$age_class">$age_str</td>
2344     <td>$author</td>
2345     <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2346     <td class="pre">$data</td>
2347   </tr>
2348 HTML
2349         } # while (my $line = <$fd>)
2350         print "</table>\n\n";
2351         close $fd
2352                 or print "Reading blob failed.\n";
2353         print "</div>";
2354         git_footer_html();
2355 }
2356
2357 sub git_tags {
2358         my $head = git_get_head_hash($project);
2359         git_header_html();
2360         git_print_page_nav('','', $head,undef,$head);
2361         git_print_header_div('summary', $project);
2362
2363         my $taglist = git_get_refs_list("refs/tags");
2364         if (defined @$taglist) {
2365                 git_tags_body($taglist);
2366         }
2367         git_footer_html();
2368 }
2369
2370 sub git_heads {
2371         my $head = git_get_head_hash($project);
2372         git_header_html();
2373         git_print_page_nav('','', $head,undef,$head);
2374         git_print_header_div('summary', $project);
2375
2376         my $taglist = git_get_refs_list("refs/heads");
2377         if (defined @$taglist) {
2378                 git_heads_body($taglist, $head);
2379         }
2380         git_footer_html();
2381 }
2382
2383 sub git_blob_plain {
2384         # blobs defined by non-textual hash id's can be cached
2385         my $expires;
2386         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2387                 $expires = "+1d";
2388         }
2389
2390         if (!defined $hash) {
2391                 if (defined $file_name) {
2392                         my $base = $hash_base || git_get_head_hash($project);
2393                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2394                                 or die_error(undef, "Error lookup file");
2395                 } else {
2396                         die_error(undef, "No file name defined");
2397                 }
2398         }
2399         my $type = shift;
2400         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2401                 or die_error(undef, "Couldn't cat $file_name, $hash");
2402
2403         $type ||= blob_mimetype($fd, $file_name);
2404
2405         # save as filename, even when no $file_name is given
2406         my $save_as = "$hash";
2407         if (defined $file_name) {
2408                 $save_as = $file_name;
2409         } elsif ($type =~ m/^text\//) {
2410                 $save_as .= '.txt';
2411         }
2412
2413         print $cgi->header(
2414                 -type => "$type",
2415                 -expires=>$expires,
2416                 -content_disposition => "inline; filename=\"$save_as\"");
2417         undef $/;
2418         binmode STDOUT, ':raw';
2419         print <$fd>;
2420         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2421         $/ = "\n";
2422         close $fd;
2423 }
2424
2425 sub git_blob {
2426         # blobs defined by non-textual hash id's can be cached
2427         my $expires;
2428         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2429                 $expires = "+1d";
2430         }
2431
2432         if (!defined $hash) {
2433                 if (defined $file_name) {
2434                         my $base = $hash_base || git_get_head_hash($project);
2435                         $hash = git_get_hash_by_path($base, $file_name, "blob")
2436                                 or die_error(undef, "Error lookup file");
2437                 } else {
2438                         die_error(undef, "No file name defined");
2439                 }
2440         }
2441         my $have_blame = gitweb_check_feature('blame');
2442         open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2443                 or die_error(undef, "Couldn't cat $file_name, $hash");
2444         my $mimetype = blob_mimetype($fd, $file_name);
2445         if ($mimetype !~ m/^text\//) {
2446                 close $fd;
2447                 return git_blob_plain($mimetype);
2448         }
2449         git_header_html(undef, $expires);
2450         my $formats_nav = '';
2451         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2452                 if (defined $file_name) {
2453                         if ($have_blame) {
2454                                 $formats_nav .=
2455                                         $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
2456                                                                hash=>$hash, file_name=>$file_name)},
2457                                                 "blame") .
2458                                         " | ";
2459                         }
2460                         $formats_nav .=
2461                                 $cgi->a({-href => href(action=>"blob_plain",
2462                                                        hash=>$hash, file_name=>$file_name)},
2463                                         "plain") .
2464                                 " | " .
2465                                 $cgi->a({-href => href(action=>"blob",
2466                                                        hash_base=>"HEAD", file_name=>$file_name)},
2467                                         "head");
2468                 } else {
2469                         $formats_nav .=
2470                                 $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2471                 }
2472                 git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2473                 git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2474         } else {
2475                 print "<div class=\"page_nav\">\n" .
2476                       "<br/><br/></div>\n" .
2477                       "<div class=\"title\">$hash</div>\n";
2478         }
2479         git_print_page_path($file_name, "blob", $hash_base);
2480         print "<div class=\"page_body\">\n";
2481         my $nr;
2482         while (my $line = <$fd>) {
2483                 chomp $line;
2484                 $nr++;
2485                 $line = untabify($line);
2486                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
2487                        $nr, $nr, $nr, esc_html($line);
2488         }
2489         close $fd
2490                 or print "Reading blob failed.\n";
2491         print "</div>";
2492         git_footer_html();
2493 }
2494
2495 sub git_tree {
2496         if (!defined $hash) {
2497                 $hash = git_get_head_hash($project);
2498                 if (defined $file_name) {
2499                         my $base = $hash_base || $hash;
2500                         $hash = git_get_hash_by_path($base, $file_name, "tree");
2501                 }
2502                 if (!defined $hash_base) {
2503                         $hash_base = $hash;
2504                 }
2505         }
2506         $/ = "\0";
2507         open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
2508                 or die_error(undef, "Open git-ls-tree failed");
2509         my @entries = map { chomp; $_ } <$fd>;
2510         close $fd or die_error(undef, "Reading tree failed");
2511         $/ = "\n";
2512
2513         my $refs = git_get_references();
2514         my $ref = format_ref_marker($refs, $hash_base);
2515         git_header_html();
2516         my %base_key = ();
2517         my $base = "";
2518         my $have_blame = gitweb_check_feature('blame');
2519         if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2520                 $base_key{hash_base} = $hash_base;
2521                 git_print_page_nav('tree','', $hash_base);
2522                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2523         } else {
2524                 print "<div class=\"page_nav\">\n";
2525                 print "<br/><br/></div>\n";
2526                 print "<div class=\"title\">$hash</div>\n";
2527         }
2528         if (defined $file_name) {
2529                 $base = esc_html("$file_name/");
2530         }
2531         git_print_page_path($file_name, 'tree', $hash_base);
2532         print "<div class=\"page_body\">\n";
2533         print "<table cellspacing=\"0\">\n";
2534         my $alternate = 0;
2535         foreach my $line (@entries) {
2536                 my %t = parse_ls_tree_line($line, -z => 1);
2537
2538                 if ($alternate) {
2539                         print "<tr class=\"dark\">\n";
2540                 } else {
2541                         print "<tr class=\"light\">\n";
2542                 }
2543                 $alternate ^= 1;
2544
2545                 print "<td class=\"mode\">" . mode_str($t{'mode'}) . "</td>\n";
2546                 if ($t{'type'} eq "blob") {
2547                         print "<td class=\"list\">" .
2548                               $cgi->a({-href => href(action=>"blob", hash=>$t{'hash'},
2549                                                      file_name=>"$base$t{'name'}", %base_key),
2550                                       -class => "list"}, esc_html($t{'name'})) .
2551                               "</td>\n" .
2552                               "<td class=\"link\">" .
2553                               $cgi->a({-href => href(action=>"blob", hash=>$t{'hash'},
2554                                                      file_name=>"$base$t{'name'}", %base_key)},
2555                                       "blob");
2556                         if ($have_blame) {
2557                                 print " | " .
2558                                         $cgi->a({-href => href(action=>"blame", hash=>$t{'hash'},
2559                                                                file_name=>"$base$t{'name'}", %base_key)},
2560                                                 "blame");
2561                         }
2562                         print " | " .
2563                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2564                                                      hash=>$t{'hash'}, file_name=>"$base$t{'name'}")},
2565                                       "history") .
2566                               " | " .
2567                               $cgi->a({-href => href(action=>"blob_plain",
2568                                                      hash=>$t{'hash'}, file_name=>"$base$t{'name'}")},
2569                                       "raw") .
2570                               "</td>\n";
2571                 } elsif ($t{'type'} eq "tree") {
2572                         print "<td class=\"list\">" .
2573                               $cgi->a({-href => href(action=>"tree", hash=>$t{'hash'},
2574                                                      file_name=>"$base$t{'name'}", %base_key)},
2575                                       esc_html($t{'name'})) .
2576                               "</td>\n" .
2577                               "<td class=\"link\">" .
2578                               $cgi->a({-href => href(action=>"tree", hash=>$t{'hash'},
2579                                                      file_name=>"$base$t{'name'}", %base_key)},
2580                                       "tree") .
2581                               " | " .
2582                               $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2583                                                      file_name=>"$base$t{'name'}")},
2584                                       "history") .
2585                               "</td>\n";
2586                 }
2587                 print "</tr>\n";
2588         }
2589         print "</table>\n" .
2590               "</div>";
2591         git_footer_html();
2592 }
2593
2594 sub git_snapshot {
2595
2596         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2597         my $have_snapshot = (defined $ctype && defined $suffix);
2598         if (!$have_snapshot) {
2599                 die_error('403 Permission denied', "Permission denied");
2600         }
2601
2602         if (!defined $hash) {
2603                 $hash = git_get_head_hash($project);
2604         }
2605
2606         my $filename = basename($project) . "-$hash.tar.$suffix";
2607
2608         print $cgi->header(-type => 'application/x-tar',
2609                            -content_encoding => $ctype,
2610                            -content_disposition => "inline; filename=\"$filename\"",
2611                            -status => '200 OK');
2612
2613         my $git_command = git_cmd_str();
2614         open my $fd, "-|", "$git_command tar-tree $hash \'$project\' | $command" or
2615                 die_error(undef, "Execute git-tar-tree failed.");
2616         binmode STDOUT, ':raw';
2617         print <$fd>;
2618         binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2619         close $fd;
2620
2621 }
2622
2623 sub git_log {
2624         my $head = git_get_head_hash($project);
2625         if (!defined $hash) {
2626                 $hash = $head;
2627         }
2628         if (!defined $page) {
2629                 $page = 0;
2630         }
2631         my $refs = git_get_references();
2632
2633         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2634         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
2635                 or die_error(undef, "Open git-rev-list failed");
2636         my @revlist = map { chomp; $_ } <$fd>;
2637         close $fd;
2638
2639         my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2640
2641         git_header_html();
2642         git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2643
2644         if (!@revlist) {
2645                 my %co = parse_commit($hash);
2646
2647                 git_print_header_div('summary', $project);
2648                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2649         }
2650         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2651                 my $commit = $revlist[$i];
2652                 my $ref = format_ref_marker($refs, $commit);
2653                 my %co = parse_commit($commit);
2654                 next if !%co;
2655                 my %ad = parse_date($co{'author_epoch'});
2656                 git_print_header_div('commit',
2657                                "<span class=\"age\">$co{'age_string'}</span>" .
2658                                esc_html($co{'title'}) . $ref,
2659                                $commit);
2660                 print "<div class=\"title_text\">\n" .
2661                       "<div class=\"log_link\">\n" .
2662                       $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2663                       " | " .
2664                       $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2665                       "<br/>\n" .
2666                       "</div>\n" .
2667                       "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2668                       "</div>\n";
2669
2670                 print "<div class=\"log_body\">\n";
2671                 git_print_simplified_log($co{'comment'});
2672                 print "</div>\n";
2673         }
2674         git_footer_html();
2675 }
2676
2677 sub git_commit {
2678         my %co = parse_commit($hash);
2679         if (!%co) {
2680                 die_error(undef, "Unknown commit object");
2681         }
2682         my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2683         my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2684
2685         my $parent = $co{'parent'};
2686         if (!defined $parent) {
2687                 $parent = "--root";
2688         }
2689         open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $parent, $hash
2690                 or die_error(undef, "Open git-diff-tree failed");
2691         my @difftree = map { chomp; $_ } <$fd>;
2692         close $fd or die_error(undef, "Reading git-diff-tree failed");
2693
2694         # non-textual hash id's can be cached
2695         my $expires;
2696         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2697                 $expires = "+1d";
2698         }
2699         my $refs = git_get_references();
2700         my $ref = format_ref_marker($refs, $co{'id'});
2701
2702         my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
2703         my $have_snapshot = (defined $ctype && defined $suffix);
2704
2705         my $formats_nav = '';
2706         if (defined $file_name && defined $co{'parent'}) {
2707                 my $parent = $co{'parent'};
2708                 $formats_nav .=
2709                         $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
2710                                 "blame");
2711         }
2712         git_header_html(undef, $expires);
2713         git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2714                            $hash, $co{'tree'}, $hash,
2715                            $formats_nav);
2716
2717         if (defined $co{'parent'}) {
2718                 git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2719         } else {
2720                 git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2721         }
2722         print "<div class=\"title_text\">\n" .
2723               "<table cellspacing=\"0\">\n";
2724         print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2725               "<tr>" .
2726               "<td></td><td> $ad{'rfc2822'}";
2727         if ($ad{'hour_local'} < 6) {
2728                 printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2729                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2730         } else {
2731                 printf(" (%02d:%02d %s)",
2732                        $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2733         }
2734         print "</td>" .
2735               "</tr>\n";
2736         print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2737         print "<tr><td></td><td> $cd{'rfc2822'}" .
2738               sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
2739               "</td></tr>\n";
2740         print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2741         print "<tr>" .
2742               "<td>tree</td>" .
2743               "<td class=\"sha1\">" .
2744               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
2745                        class => "list"}, $co{'tree'}) .
2746               "</td>" .
2747               "<td class=\"link\">" .
2748               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
2749                       "tree");
2750         if ($have_snapshot) {
2751                 print " | " .
2752                       $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
2753         }
2754         print "</td>" .
2755               "</tr>\n";
2756         my $parents = $co{'parents'};
2757         foreach my $par (@$parents) {
2758                 print "<tr>" .
2759                       "<td>parent</td>" .
2760                       "<td class=\"sha1\">" .
2761                       $cgi->a({-href => href(action=>"commit", hash=>$par),
2762                                class => "list"}, $par) .
2763                       "</td>" .
2764                       "<td class=\"link\">" .
2765                       $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2766                       " | " .
2767                       $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .
2768                       "</td>" .
2769                       "</tr>\n";
2770         }
2771         print "</table>".
2772               "</div>\n";
2773
2774         print "<div class=\"page_body\">\n";
2775         git_print_log($co{'comment'});
2776         print "</div>\n";
2777
2778         git_difftree_body(\@difftree, $hash, $parent);
2779
2780         git_footer_html();
2781 }
2782
2783 sub git_blobdiff {
2784         my $format = shift || 'html';
2785
2786         my $fd;
2787         my @difftree;
2788         my %diffinfo;
2789         my $expires;
2790
2791         # preparing $fd and %diffinfo for git_patchset_body
2792         # new style URI
2793         if (defined $hash_base && defined $hash_parent_base) {
2794                 if (defined $file_name) {
2795                         # read raw output
2796                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base,
2797                                 "--", $file_name
2798                                 or die_error(undef, "Open git-diff-tree failed");
2799                         @difftree = map { chomp; $_ } <$fd>;
2800                         close $fd
2801                                 or die_error(undef, "Reading git-diff-tree failed");
2802                         @difftree
2803                                 or die_error('404 Not Found', "Blob diff not found");
2804
2805                 } elsif (defined $hash &&
2806                          $hash =~ /[0-9a-fA-F]{40}/) {
2807                         # try to find filename from $hash
2808
2809                         # read filtered raw output
2810                         open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, $hash_parent_base, $hash_base
2811                                 or die_error(undef, "Open git-diff-tree failed");
2812                         @difftree =
2813                                 # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
2814                                 # $hash == to_id
2815                                 grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
2816                                 map { chomp; $_ } <$fd>;
2817                         close $fd
2818                                 or die_error(undef, "Reading git-diff-tree failed");
2819                         @difftree
2820                                 or die_error('404 Not Found', "Blob diff not found");
2821
2822                 } else {
2823                         die_error('404 Not Found', "Missing one of the blob diff parameters");
2824                 }
2825
2826                 if (@difftree > 1) {
2827                         die_error('404 Not Found', "Ambiguous blob diff specification");
2828                 }
2829
2830                 %diffinfo = parse_difftree_raw_line($difftree[0]);
2831                 $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
2832                 $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
2833
2834                 $hash_parent ||= $diffinfo{'from_id'};
2835                 $hash        ||= $diffinfo{'to_id'};
2836
2837                 # non-textual hash id's can be cached
2838                 if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
2839                     $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
2840                         $expires = '+1d';
2841                 }
2842
2843                 # open patch output
2844                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
2845                         '-p', $hash_parent_base, $hash_base,
2846                         "--", $file_name
2847                         or die_error(undef, "Open git-diff-tree failed");
2848         }
2849
2850         # old/legacy style URI
2851         if (!%diffinfo && # if new style URI failed
2852             defined $hash && defined $hash_parent) {
2853                 # fake git-diff-tree raw output
2854                 $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
2855                 $diffinfo{'from_id'} = $hash_parent;
2856                 $diffinfo{'to_id'}   = $hash;
2857                 if (defined $file_name) {
2858                         if (defined $file_parent) {
2859                                 $diffinfo{'status'} = '2';
2860                                 $diffinfo{'from_file'} = $file_parent;
2861                                 $diffinfo{'to_file'}   = $file_name;
2862                         } else { # assume not renamed
2863                                 $diffinfo{'status'} = '1';
2864                                 $diffinfo{'from_file'} = $file_name;
2865                                 $diffinfo{'to_file'}   = $file_name;
2866                         }
2867                 } else { # no filename given
2868                         $diffinfo{'status'} = '2';
2869                         $diffinfo{'from_file'} = $hash_parent;
2870                         $diffinfo{'to_file'}   = $hash;
2871                 }
2872
2873                 # non-textual hash id's can be cached
2874                 if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
2875                     $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
2876                         $expires = '+1d';
2877                 }
2878
2879                 # open patch output
2880                 open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts, $hash_parent, $hash
2881                         or die_error(undef, "Open git-diff failed");
2882         } else  {
2883                 die_error('404 Not Found', "Missing one of the blob diff parameters")
2884                         unless %diffinfo;
2885         }
2886
2887         # header
2888         if ($format eq 'html') {
2889                 my $formats_nav =
2890                         $cgi->a({-href => href(action=>"blobdiff_plain",
2891                                                hash=>$hash, hash_parent=>$hash_parent,
2892                                                hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
2893                                                file_name=>$file_name, file_parent=>$file_parent)},
2894                                 "plain");
2895                 git_header_html(undef, $expires);
2896                 if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2897                         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2898                         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2899                 } else {
2900                         print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
2901                         print "<div class=\"title\">$hash vs $hash_parent</div>\n";
2902                 }
2903                 if (defined $file_name) {
2904                         git_print_page_path($file_name, "blob", $hash_base);
2905                 } else {
2906                         print "<div class=\"page_path\"></div>\n";
2907                 }
2908
2909         } elsif ($format eq 'plain') {
2910                 print $cgi->header(
2911                         -type => 'text/plain',
2912                         -charset => 'utf-8',
2913                         -expires => $expires,
2914                         -content_disposition => qq(inline; filename="${file_name}.patch"));
2915
2916                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
2917
2918         } else {
2919                 die_error(undef, "Unknown blobdiff format");
2920         }
2921
2922         # patch
2923         if ($format eq 'html') {
2924                 print "<div class=\"page_body\">\n";
2925
2926                 git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
2927                 close $fd;
2928
2929                 print "</div>\n"; # class="page_body"
2930                 git_footer_html();
2931
2932         } else {
2933                 while (my $line = <$fd>) {
2934                         $line =~ s!a/($hash|$hash_parent)!a/$diffinfo{'from_file'}!g;
2935                         $line =~ s!b/($hash|$hash_parent)!b/$diffinfo{'to_file'}!g;
2936
2937                         print $line;
2938
2939                         last if $line =~ m!^\+\+\+!;
2940                 }
2941                 local $/ = undef;
2942                 print <$fd>;
2943                 close $fd;
2944         }
2945 }
2946
2947 sub git_blobdiff_plain {
2948         git_blobdiff('plain');
2949 }
2950
2951 sub git_commitdiff {
2952         my $format = shift || 'html';
2953         my %co = parse_commit($hash);
2954         if (!%co) {
2955                 die_error(undef, "Unknown commit object");
2956         }
2957         if (!defined $hash_parent) {
2958                 $hash_parent = $co{'parent'} || '--root';
2959         }
2960
2961         # read commitdiff
2962         my $fd;
2963         my @difftree;
2964         if ($format eq 'html') {
2965                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
2966                         "--patch-with-raw", "--full-index", $hash_parent, $hash
2967                         or die_error(undef, "Open git-diff-tree failed");
2968
2969                 while (chomp(my $line = <$fd>)) {
2970                         # empty line ends raw part of diff-tree output
2971                         last unless $line;
2972                         push @difftree, $line;
2973                 }
2974
2975         } elsif ($format eq 'plain') {
2976                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
2977                         '-p', $hash_parent, $hash
2978                         or die_error(undef, "Open git-diff-tree failed");
2979
2980         } else {
2981                 die_error(undef, "Unknown commitdiff format");
2982         }
2983
2984         # non-textual hash id's can be cached
2985         my $expires;
2986         if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2987                 $expires = "+1d";
2988         }
2989
2990         # write commit message
2991         if ($format eq 'html') {
2992                 my $refs = git_get_references();
2993                 my $ref = format_ref_marker($refs, $co{'id'});
2994                 my $formats_nav =
2995                         $cgi->a({-href => href(action=>"commitdiff_plain",
2996                                                hash=>$hash, hash_parent=>$hash_parent)},
2997                                 "plain");
2998
2999                 git_header_html(undef, $expires);
3000                 git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3001                 git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3002                 git_print_authorship(\%co);
3003                 print "<div class=\"page_body\">\n";
3004                 print "<div class=\"log\">\n";
3005                 git_print_simplified_log($co{'comment'}, 1); # skip title
3006                 print "</div>\n"; # class="log"
3007
3008         } elsif ($format eq 'plain') {
3009                 my $refs = git_get_references("tags");
3010                 my $tagname = git_get_rev_name_tags($hash);
3011                 my $filename = basename($project) . "-$hash.patch";
3012
3013                 print $cgi->header(
3014                         -type => 'text/plain',
3015                         -charset => 'utf-8',
3016                         -expires => $expires,
3017                         -content_disposition => qq(inline; filename="$filename"));
3018                 my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3019                 print <<TEXT;
3020 From: $co{'author'}
3021 Date: $ad{'rfc2822'} ($ad{'tz_local'})
3022 Subject: $co{'title'}
3023 TEXT
3024                 print "X-Git-Tag: $tagname\n" if $tagname;
3025                 print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3026
3027                 foreach my $line (@{$co{'comment'}}) {
3028                         print "$line\n";
3029                 }
3030                 print "---\n\n";
3031         }
3032
3033         # write patch
3034         if ($format eq 'html') {
3035                 git_difftree_body(\@difftree, $hash, $hash_parent);
3036                 print "<br/>\n";
3037
3038                 git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3039                 close $fd;
3040                 print "</div>\n"; # class="page_body"
3041                 git_footer_html();
3042
3043         } elsif ($format eq 'plain') {
3044                 local $/ = undef;
3045                 print <$fd>;
3046                 close $fd
3047                         or print "Reading git-diff-tree failed\n";
3048         }
3049 }
3050
3051 sub git_commitdiff_plain {
3052         git_commitdiff('plain');
3053 }
3054
3055 sub git_history {
3056         if (!defined $hash_base) {
3057                 $hash_base = git_get_head_hash($project);
3058         }
3059         my $ftype;
3060         my %co = parse_commit($hash_base);
3061         if (!%co) {
3062                 die_error(undef, "Unknown commit object");
3063         }
3064         my $refs = git_get_references();
3065         git_header_html();
3066         git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base);
3067         git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3068         if (!defined $hash && defined $file_name) {
3069                 $hash = git_get_hash_by_path($hash_base, $file_name);
3070         }
3071         if (defined $hash) {
3072                 $ftype = git_get_type($hash);
3073         }
3074         git_print_page_path($file_name, $ftype, $hash_base);
3075
3076         open my $fd, "-|",
3077                 git_cmd(), "rev-list", "--full-history", $hash_base, "--", $file_name;
3078
3079         git_history_body($fd, $refs, $hash_base, $ftype);
3080
3081         close $fd;
3082         git_footer_html();
3083 }
3084
3085 sub git_search {
3086         if (!defined $searchtext) {
3087                 die_error(undef, "Text field empty");
3088         }
3089         if (!defined $hash) {
3090                 $hash = git_get_head_hash($project);
3091         }
3092         my %co = parse_commit($hash);
3093         if (!%co) {
3094                 die_error(undef, "Unknown commit object");
3095         }
3096         # pickaxe may take all resources of your box and run for several minutes
3097         # with every query - so decide by yourself how public you make this feature :)
3098         my $commit_search = 1;
3099         my $author_search = 0;
3100         my $committer_search = 0;
3101         my $pickaxe_search = 0;
3102         if ($searchtext =~ s/^author\\://i) {
3103                 $author_search = 1;
3104         } elsif ($searchtext =~ s/^committer\\://i) {
3105                 $committer_search = 1;
3106         } elsif ($searchtext =~ s/^pickaxe\\://i) {
3107                 $commit_search = 0;
3108                 $pickaxe_search = 1;
3109         }
3110         git_header_html();
3111         git_print_page_nav('','', $hash,$co{'tree'},$hash);
3112         git_print_header_div('commit', esc_html($co{'title'}), $hash);
3113
3114         print "<table cellspacing=\"0\">\n";
3115         my $alternate = 0;
3116         if ($commit_search) {
3117                 $/ = "\0";
3118                 open my $fd, "-|", git_cmd(), "rev-list", "--header", "--parents", $hash or next;
3119                 while (my $commit_text = <$fd>) {
3120                         if (!grep m/$searchtext/i, $commit_text) {
3121                                 next;
3122                         }
3123                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3124                                 next;
3125                         }
3126                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3127                                 next;
3128                         }
3129                         my @commit_lines = split "\n", $commit_text;
3130                         my %co = parse_commit(undef, \@commit_lines);
3131                         if (!%co) {
3132                                 next;
3133                         }
3134                         if ($alternate) {
3135                                 print "<tr class=\"dark\">\n";
3136                         } else {
3137                                 print "<tr class=\"light\">\n";
3138                         }
3139                         $alternate ^= 1;
3140                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3141                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3142                               "<td>" .
3143                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3144                                        esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3145                         my $comment = $co{'comment'};
3146                         foreach my $line (@$comment) {
3147                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3148                                         my $lead = esc_html($1) || "";
3149                                         $lead = chop_str($lead, 30, 10);
3150                                         my $match = esc_html($2) || "";
3151                                         my $trail = esc_html($3) || "";
3152                                         $trail = chop_str($trail, 30, 10);
3153                                         my $text = "$lead<span class=\"match\">$match</span>$trail";
3154                                         print chop_str($text, 80, 5) . "<br/>\n";
3155                                 }
3156                         }
3157                         print "</td>\n" .
3158                               "<td class=\"link\">" .
3159                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3160                               " | " .
3161                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3162                         print "</td>\n" .
3163                               "</tr>\n";
3164                 }
3165                 close $fd;
3166         }
3167
3168         if ($pickaxe_search) {
3169                 $/ = "\n";
3170                 my $git_command = git_cmd_str();
3171                 open my $fd, "-|", "$git_command rev-list $hash | " .
3172                         "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3173                 undef %co;
3174                 my @files;
3175                 while (my $line = <$fd>) {
3176                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3177                                 my %set;
3178                                 $set{'file'} = $6;
3179                                 $set{'from_id'} = $3;
3180                                 $set{'to_id'} = $4;
3181                                 $set{'id'} = $set{'to_id'};
3182                                 if ($set{'id'} =~ m/0{40}/) {
3183                                         $set{'id'} = $set{'from_id'};
3184                                 }
3185                                 if ($set{'id'} =~ m/0{40}/) {
3186                                         next;
3187                                 }
3188                                 push @files, \%set;
3189                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3190                                 if (%co) {
3191                                         if ($alternate) {
3192                                                 print "<tr class=\"dark\">\n";
3193                                         } else {
3194                                                 print "<tr class=\"light\">\n";
3195                                         }
3196                                         $alternate ^= 1;
3197                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3198                                               "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3199                                               "<td>" .
3200                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3201                                                       -class => "list subject"},
3202                                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3203                                         while (my $setref = shift @files) {
3204                                                 my %set = %$setref;
3205                                                 print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3206                                                                              hash=>$set{'id'}, file_name=>$set{'file'}),
3207                                                               -class => "list"},
3208                                                               "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3209                                                       "<br/>\n";
3210                                         }
3211                                         print "</td>\n" .
3212                                               "<td class=\"link\">" .
3213                                               $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3214                                               " | " .
3215                                               $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3216                                         print "</td>\n" .
3217                                               "</tr>\n";
3218                                 }
3219                                 %co = parse_commit($1);
3220                         }
3221                 }
3222                 close $fd;
3223         }
3224         print "</table>\n";
3225         git_footer_html();
3226 }
3227
3228 sub git_shortlog {
3229         my $head = git_get_head_hash($project);
3230         if (!defined $hash) {
3231                 $hash = $head;
3232         }
3233         if (!defined $page) {
3234                 $page = 0;
3235         }
3236         my $refs = git_get_references();
3237
3238         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3239         open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash
3240                 or die_error(undef, "Open git-rev-list failed");
3241         my @revlist = map { chomp; $_ } <$fd>;
3242         close $fd;
3243
3244         my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3245         my $next_link = '';
3246         if ($#revlist >= (100 * ($page+1)-1)) {
3247                 $next_link =
3248                         $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3249                                  -title => "Alt-n"}, "next");
3250         }
3251
3252
3253         git_header_html();
3254         git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3255         git_print_header_div('summary', $project);
3256
3257         git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3258
3259         git_footer_html();
3260 }
3261
3262 ## ......................................................................
3263 ## feeds (RSS, OPML)
3264
3265 sub git_rss {
3266         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3267         open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150", git_get_head_hash($project)
3268                 or die_error(undef, "Open git-rev-list failed");
3269         my @revlist = map { chomp; $_ } <$fd>;
3270         close $fd or die_error(undef, "Reading git-rev-list failed");
3271         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3272         print <<XML;
3273 <?xml version="1.0" encoding="utf-8"?>
3274 <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3275 <channel>
3276 <title>$project $my_uri $my_url</title>
3277 <link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3278 <description>$project log</description>
3279 <language>en</language>
3280 XML
3281
3282         for (my $i = 0; $i <= $#revlist; $i++) {
3283                 my $commit = $revlist[$i];
3284                 my %co = parse_commit($commit);
3285                 # we read 150, we always show 30 and the ones more recent than 48 hours
3286                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3287                         last;
3288                 }
3289                 my %cd = parse_date($co{'committer_epoch'});
3290                 open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3291                         $co{'parent'}, $co{'id'}
3292                         or next;
3293                 my @difftree = map { chomp; $_ } <$fd>;
3294                 close $fd
3295                         or next;
3296                 print "<item>\n" .
3297                       "<title>" .
3298                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3299                       "</title>\n" .
3300                       "<author>" . esc_html($co{'author'}) . "</author>\n" .
3301                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3302                       "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3303                       "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3304                       "<description>" . esc_html($co{'title'}) . "</description>\n" .
3305                       "<content:encoded>" .
3306                       "<![CDATA[\n";
3307                 my $comment = $co{'comment'};
3308                 foreach my $line (@$comment) {
3309                         $line = decode("utf8", $line, Encode::FB_DEFAULT);
3310                         print "$line<br/>\n";
3311                 }
3312                 print "<br/>\n";
3313                 foreach my $line (@difftree) {
3314                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3315                                 next;
3316                         }
3317                         my $file = validate_input(unquote($7));
3318                         $file = decode("utf8", $file, Encode::FB_DEFAULT);
3319                         print "$file<br/>\n";
3320                 }
3321                 print "]]>\n" .
3322                       "</content:encoded>\n" .
3323                       "</item>\n";
3324         }
3325         print "</channel></rss>";
3326 }
3327
3328 sub git_opml {
3329         my @list = git_get_projects_list();
3330
3331         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3332         print <<XML;
3333 <?xml version="1.0" encoding="utf-8"?>
3334 <opml version="1.0">
3335 <head>
3336   <title>$site_name Git OPML Export</title>
3337 </head>
3338 <body>
3339 <outline text="git RSS feeds">
3340 XML
3341
3342         foreach my $pr (@list) {
3343                 my %proj = %$pr;
3344                 my $head = git_get_head_hash($proj{'path'});
3345                 if (!defined $head) {
3346                         next;
3347                 }
3348                 $git_dir = "$projectroot/$proj{'path'}";
3349                 my %co = parse_commit($head);
3350                 if (!%co) {
3351                         next;
3352                 }
3353
3354                 my $path = esc_html(chop_str($proj{'path'}, 25, 5));
3355                 my $rss  = "$my_url?p=$proj{'path'};a=rss";
3356                 my $html = "$my_url?p=$proj{'path'};a=summary";
3357                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
3358         }
3359         print <<XML;
3360 </outline>
3361 </body>
3362 </opml>
3363 XML
3364 }