Andrew's git - gitweb.git/blob - 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
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21our $cgi = new CGI;
  22our $version = "++GIT_VERSION++";
  23our $my_url = $cgi->url();
  24our $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
  28our $GIT = "++GIT_BINDIR++/git";
  29
  30# absolute fs-path which will be prepended to the project path
  31#our $projectroot = "/pub/scm";
  32our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34# target of the home link on top of all pages
  35our $home_link = $my_uri || "/";
  36
  37# string of the home link on top of all pages
  38our $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
  42our $site_name = "++GITWEB_SITENAME++"
  43                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  44
  45# filename of html text to include at top of each page
  46our $site_header = "++GITWEB_SITE_HEADER++";
  47# html text to include at home page
  48our $home_text = "++GITWEB_HOMETEXT++";
  49# filename of html text to include at bottom of each page
  50our $site_footer = "++GITWEB_SITE_FOOTER++";
  51
  52# URI of stylesheets
  53our @stylesheets = ("++GITWEB_CSS++");
  54# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  55our $stylesheet = undef;
  56# URI of GIT logo (72x27 size)
  57our $logo = "++GITWEB_LOGO++";
  58# URI of GIT favicon, assumed to be image/png type
  59our $favicon = "++GITWEB_FAVICON++";
  60
  61# URI and label (title) of GIT logo link
  62#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  63#our $logo_label = "git documentation";
  64our $logo_url = "http://git.or.cz/";
  65our $logo_label = "git homepage";
  66
  67# source of projects list
  68our $projects_list = "++GITWEB_LIST++";
  69
  70# show repository only if this file exists
  71# (only effective if this variable evaluates to true)
  72our $export_ok = "++GITWEB_EXPORT_OK++";
  73
  74# only allow viewing of repositories also shown on the overview page
  75our $strict_export = "++GITWEB_STRICT_EXPORT++";
  76
  77# list of git base URLs used for URL to where fetch project from,
  78# i.e. full URL is "$git_base_url/$project"
  79our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  80
  81# default blob_plain mimetype and default charset for text/plain blob
  82our $default_blob_plain_mimetype = 'text/plain';
  83our $default_text_plain_charset  = undef;
  84
  85# file to use for guessing MIME types before trying /etc/mime.types
  86# (relative to the current git repository)
  87our $mimetypes_file = undef;
  88
  89# You define site-wide feature defaults here; override them with
  90# $GITWEB_CONFIG as necessary.
  91our %feature = (
  92        # feature => {
  93        #       'sub' => feature-sub (subroutine),
  94        #       'override' => allow-override (boolean),
  95        #       'default' => [ default options...] (array reference)}
  96        #
  97        # if feature is overridable (it means that allow-override has true value,
  98        # then feature-sub will be called with default options as parameters;
  99        # return value of feature-sub indicates if to enable specified feature
 100        #
 101        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 102
 103        # Enable the 'blame' blob view, showing the last commit that modified
 104        # each line in the file. This can be very CPU-intensive.
 105
 106        # To enable system wide have in $GITWEB_CONFIG
 107        # $feature{'blame'}{'default'} = [1];
 108        # To have project specific config enable override in $GITWEB_CONFIG
 109        # $feature{'blame'}{'override'} = 1;
 110        # and in project config gitweb.blame = 0|1;
 111        'blame' => {
 112                'sub' => \&feature_blame,
 113                'override' => 0,
 114                'default' => [0]},
 115
 116        # Enable the 'snapshot' link, providing a compressed tarball of any
 117        # tree. This can potentially generate high traffic if you have large
 118        # project.
 119
 120        # To disable system wide have in $GITWEB_CONFIG
 121        # $feature{'snapshot'}{'default'} = [undef];
 122        # To have project specific config enable override in $GITWEB_CONFIG
 123        # $feature{'blame'}{'override'} = 1;
 124        # and in project config gitweb.snapshot = none|gzip|bzip2;
 125        'snapshot' => {
 126                'sub' => \&feature_snapshot,
 127                'override' => 0,
 128                #         => [content-encoding, suffix, program]
 129                'default' => ['x-gzip', 'gz', 'gzip']},
 130
 131        # Enable the pickaxe search, which will list the commits that modified
 132        # a given string in a file. This can be practical and quite faster
 133        # alternative to 'blame', but still potentially CPU-intensive.
 134
 135        # To enable system wide have in $GITWEB_CONFIG
 136        # $feature{'pickaxe'}{'default'} = [1];
 137        # To have project specific config enable override in $GITWEB_CONFIG
 138        # $feature{'pickaxe'}{'override'} = 1;
 139        # and in project config gitweb.pickaxe = 0|1;
 140        'pickaxe' => {
 141                'sub' => \&feature_pickaxe,
 142                'override' => 0,
 143                'default' => [1]},
 144
 145        # Make gitweb use an alternative format of the URLs which can be
 146        # more readable and natural-looking: project name is embedded
 147        # directly in the path and the query string contains other
 148        # auxiliary information. All gitweb installations recognize
 149        # URL in either format; this configures in which formats gitweb
 150        # generates links.
 151
 152        # To enable system wide have in $GITWEB_CONFIG
 153        # $feature{'pathinfo'}{'default'} = [1];
 154        # Project specific override is not supported.
 155
 156        # Note that you will need to change the default location of CSS,
 157        # favicon, logo and possibly other files to an absolute URL. Also,
 158        # if gitweb.cgi serves as your indexfile, you will need to force
 159        # $my_uri to contain the script name in your $GITWEB_CONFIG.
 160        'pathinfo' => {
 161                'override' => 0,
 162                'default' => [0]},
 163
 164        # Make gitweb consider projects in project root subdirectories
 165        # to be forks of existing projects. Given project $projname.git,
 166        # projects matching $projname/*.git will not be shown in the main
 167        # projects list, instead a '+' mark will be added to $projname
 168        # there and a 'forks' view will be enabled for the project, listing
 169        # all the forks. This feature is supported only if project list
 170        # is taken from a directory, not file.
 171
 172        # To enable system wide have in $GITWEB_CONFIG
 173        # $feature{'forks'}{'default'} = [1];
 174        # Project specific override is not supported.
 175        'forks' => {
 176                'override' => 0,
 177                'default' => [0]},
 178);
 179
 180sub gitweb_check_feature {
 181        my ($name) = @_;
 182        return unless exists $feature{$name};
 183        my ($sub, $override, @defaults) = (
 184                $feature{$name}{'sub'},
 185                $feature{$name}{'override'},
 186                @{$feature{$name}{'default'}});
 187        if (!$override) { return @defaults; }
 188        if (!defined $sub) {
 189                warn "feature $name is not overrideable";
 190                return @defaults;
 191        }
 192        return $sub->(@defaults);
 193}
 194
 195sub feature_blame {
 196        my ($val) = git_get_project_config('blame', '--bool');
 197
 198        if ($val eq 'true') {
 199                return 1;
 200        } elsif ($val eq 'false') {
 201                return 0;
 202        }
 203
 204        return $_[0];
 205}
 206
 207sub feature_snapshot {
 208        my ($ctype, $suffix, $command) = @_;
 209
 210        my ($val) = git_get_project_config('snapshot');
 211
 212        if ($val eq 'gzip') {
 213                return ('x-gzip', 'gz', 'gzip');
 214        } elsif ($val eq 'bzip2') {
 215                return ('x-bzip2', 'bz2', 'bzip2');
 216        } elsif ($val eq 'none') {
 217                return ();
 218        }
 219
 220        return ($ctype, $suffix, $command);
 221}
 222
 223sub gitweb_have_snapshot {
 224        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 225        my $have_snapshot = (defined $ctype && defined $suffix);
 226
 227        return $have_snapshot;
 228}
 229
 230sub feature_pickaxe {
 231        my ($val) = git_get_project_config('pickaxe', '--bool');
 232
 233        if ($val eq 'true') {
 234                return (1);
 235        } elsif ($val eq 'false') {
 236                return (0);
 237        }
 238
 239        return ($_[0]);
 240}
 241
 242# checking HEAD file with -e is fragile if the repository was
 243# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 244# and then pruned.
 245sub check_head_link {
 246        my ($dir) = @_;
 247        my $headfile = "$dir/HEAD";
 248        return ((-e $headfile) ||
 249                (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 250}
 251
 252sub check_export_ok {
 253        my ($dir) = @_;
 254        return (check_head_link($dir) &&
 255                (!$export_ok || -e "$dir/$export_ok"));
 256}
 257
 258# rename detection options for git-diff and git-diff-tree
 259# - default is '-M', with the cost proportional to
 260#   (number of removed files) * (number of new files).
 261# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 262#   (number of changed files + number of removed files) * (number of new files)
 263# - even more costly is '-C', '--find-copies-harder' with cost
 264#   (number of files in the original tree) * (number of new files)
 265# - one might want to include '-B' option, e.g. '-B', '-M'
 266our @diff_opts = ('-M'); # taken from git_commit
 267
 268our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 269do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 270
 271# version of the core git binary
 272our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 273
 274$projects_list ||= $projectroot;
 275
 276# ======================================================================
 277# input validation and dispatch
 278our $action = $cgi->param('a');
 279if (defined $action) {
 280        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 281                die_error(undef, "Invalid action parameter");
 282        }
 283}
 284
 285# parameters which are pathnames
 286our $project = $cgi->param('p');
 287if (defined $project) {
 288        if (!validate_pathname($project) ||
 289            !(-d "$projectroot/$project") ||
 290            !check_head_link("$projectroot/$project") ||
 291            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 292            ($strict_export && !project_in_list($project))) {
 293                undef $project;
 294                die_error(undef, "No such project");
 295        }
 296}
 297
 298our $file_name = $cgi->param('f');
 299if (defined $file_name) {
 300        if (!validate_pathname($file_name)) {
 301                die_error(undef, "Invalid file parameter");
 302        }
 303}
 304
 305our $file_parent = $cgi->param('fp');
 306if (defined $file_parent) {
 307        if (!validate_pathname($file_parent)) {
 308                die_error(undef, "Invalid file parent parameter");
 309        }
 310}
 311
 312# parameters which are refnames
 313our $hash = $cgi->param('h');
 314if (defined $hash) {
 315        if (!validate_refname($hash)) {
 316                die_error(undef, "Invalid hash parameter");
 317        }
 318}
 319
 320our $hash_parent = $cgi->param('hp');
 321if (defined $hash_parent) {
 322        if (!validate_refname($hash_parent)) {
 323                die_error(undef, "Invalid hash parent parameter");
 324        }
 325}
 326
 327our $hash_base = $cgi->param('hb');
 328if (defined $hash_base) {
 329        if (!validate_refname($hash_base)) {
 330                die_error(undef, "Invalid hash base parameter");
 331        }
 332}
 333
 334our $hash_parent_base = $cgi->param('hpb');
 335if (defined $hash_parent_base) {
 336        if (!validate_refname($hash_parent_base)) {
 337                die_error(undef, "Invalid hash parent base parameter");
 338        }
 339}
 340
 341# other parameters
 342our $page = $cgi->param('pg');
 343if (defined $page) {
 344        if ($page =~ m/[^0-9]/) {
 345                die_error(undef, "Invalid page parameter");
 346        }
 347}
 348
 349our $searchtext = $cgi->param('s');
 350if (defined $searchtext) {
 351        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 352                die_error(undef, "Invalid search parameter");
 353        }
 354        $searchtext = quotemeta $searchtext;
 355}
 356
 357our $searchtype = $cgi->param('st');
 358if (defined $searchtype) {
 359        if ($searchtype =~ m/[^a-z]/) {
 360                die_error(undef, "Invalid searchtype parameter");
 361        }
 362}
 363
 364# now read PATH_INFO and use it as alternative to parameters
 365sub evaluate_path_info {
 366        return if defined $project;
 367        my $path_info = $ENV{"PATH_INFO"};
 368        return if !$path_info;
 369        $path_info =~ s,^/+,,;
 370        return if !$path_info;
 371        # find which part of PATH_INFO is project
 372        $project = $path_info;
 373        $project =~ s,/+$,,;
 374        while ($project && !check_head_link("$projectroot/$project")) {
 375                $project =~ s,/*[^/]*$,,;
 376        }
 377        # validate project
 378        $project = validate_pathname($project);
 379        if (!$project ||
 380            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 381            ($strict_export && !project_in_list($project))) {
 382                undef $project;
 383                return;
 384        }
 385        # do not change any parameters if an action is given using the query string
 386        return if $action;
 387        $path_info =~ s,^$project/*,,;
 388        my ($refname, $pathname) = split(/:/, $path_info, 2);
 389        if (defined $pathname) {
 390                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 391                # we could use git_get_type(branch:pathname), but it needs $git_dir
 392                $pathname =~ s,^/+,,;
 393                if (!$pathname || substr($pathname, -1) eq "/") {
 394                        $action  ||= "tree";
 395                        $pathname =~ s,/$,,;
 396                } else {
 397                        $action  ||= "blob_plain";
 398                }
 399                $hash_base ||= validate_refname($refname);
 400                $file_name ||= validate_pathname($pathname);
 401        } elsif (defined $refname) {
 402                # we got "project.git/branch"
 403                $action ||= "shortlog";
 404                $hash   ||= validate_refname($refname);
 405        }
 406}
 407evaluate_path_info();
 408
 409# path to the current git repository
 410our $git_dir;
 411$git_dir = "$projectroot/$project" if $project;
 412
 413# dispatch
 414my %actions = (
 415        "blame" => \&git_blame2,
 416        "blobdiff" => \&git_blobdiff,
 417        "blobdiff_plain" => \&git_blobdiff_plain,
 418        "blob" => \&git_blob,
 419        "blob_plain" => \&git_blob_plain,
 420        "commitdiff" => \&git_commitdiff,
 421        "commitdiff_plain" => \&git_commitdiff_plain,
 422        "commit" => \&git_commit,
 423        "forks" => \&git_forks,
 424        "heads" => \&git_heads,
 425        "history" => \&git_history,
 426        "log" => \&git_log,
 427        "rss" => \&git_rss,
 428        "atom" => \&git_atom,
 429        "search" => \&git_search,
 430        "search_help" => \&git_search_help,
 431        "shortlog" => \&git_shortlog,
 432        "summary" => \&git_summary,
 433        "tag" => \&git_tag,
 434        "tags" => \&git_tags,
 435        "tree" => \&git_tree,
 436        "snapshot" => \&git_snapshot,
 437        # those below don't need $project
 438        "opml" => \&git_opml,
 439        "project_list" => \&git_project_list,
 440        "project_index" => \&git_project_index,
 441);
 442
 443if (defined $project) {
 444        $action ||= 'summary';
 445} else {
 446        $action ||= 'project_list';
 447}
 448if (!defined($actions{$action})) {
 449        die_error(undef, "Unknown action");
 450}
 451if ($action !~ m/^(opml|project_list|project_index)$/ &&
 452    !$project) {
 453        die_error(undef, "Project needed");
 454}
 455$actions{$action}->();
 456exit;
 457
 458## ======================================================================
 459## action links
 460
 461sub href(%) {
 462        my %params = @_;
 463        # default is to use -absolute url() i.e. $my_uri
 464        my $href = $params{-full} ? $my_url : $my_uri;
 465
 466        # XXX: Warning: If you touch this, check the search form for updating,
 467        # too.
 468
 469        my @mapping = (
 470                project => "p",
 471                action => "a",
 472                file_name => "f",
 473                file_parent => "fp",
 474                hash => "h",
 475                hash_parent => "hp",
 476                hash_base => "hb",
 477                hash_parent_base => "hpb",
 478                page => "pg",
 479                order => "o",
 480                searchtext => "s",
 481                searchtype => "st",
 482        );
 483        my %mapping = @mapping;
 484
 485        $params{'project'} = $project unless exists $params{'project'};
 486
 487        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 488        if ($use_pathinfo) {
 489                # use PATH_INFO for project name
 490                $href .= "/$params{'project'}" if defined $params{'project'};
 491                delete $params{'project'};
 492
 493                # Summary just uses the project path URL
 494                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 495                        delete $params{'action'};
 496                }
 497        }
 498
 499        # now encode the parameters explicitly
 500        my @result = ();
 501        for (my $i = 0; $i < @mapping; $i += 2) {
 502                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 503                if (defined $params{$name}) {
 504                        push @result, $symbol . "=" . esc_param($params{$name});
 505                }
 506        }
 507        $href .= "?" . join(';', @result) if scalar @result;
 508
 509        return $href;
 510}
 511
 512
 513## ======================================================================
 514## validation, quoting/unquoting and escaping
 515
 516sub validate_pathname {
 517        my $input = shift || return undef;
 518
 519        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 520        # at the beginning, at the end, and between slashes.
 521        # also this catches doubled slashes
 522        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 523                return undef;
 524        }
 525        # no null characters
 526        if ($input =~ m!\0!) {
 527                return undef;
 528        }
 529        return $input;
 530}
 531
 532sub validate_refname {
 533        my $input = shift || return undef;
 534
 535        # textual hashes are O.K.
 536        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 537                return $input;
 538        }
 539        # it must be correct pathname
 540        $input = validate_pathname($input)
 541                or return undef;
 542        # restrictions on ref name according to git-check-ref-format
 543        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 544                return undef;
 545        }
 546        return $input;
 547}
 548
 549# very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 550sub to_utf8 {
 551        my $str = shift;
 552        return decode("utf8", $str, Encode::FB_DEFAULT);
 553}
 554
 555# quote unsafe chars, but keep the slash, even when it's not
 556# correct, but quoted slashes look too horrible in bookmarks
 557sub esc_param {
 558        my $str = shift;
 559        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 560        $str =~ s/\+/%2B/g;
 561        $str =~ s/ /\+/g;
 562        return $str;
 563}
 564
 565# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 566sub esc_url {
 567        my $str = shift;
 568        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 569        $str =~ s/\+/%2B/g;
 570        $str =~ s/ /\+/g;
 571        return $str;
 572}
 573
 574# replace invalid utf8 character with SUBSTITUTION sequence
 575sub esc_html ($;%) {
 576        my $str = shift;
 577        my %opts = @_;
 578
 579        $str = to_utf8($str);
 580        $str = escapeHTML($str);
 581        if ($opts{'-nbsp'}) {
 582                $str =~ s/ /&nbsp;/g;
 583        }
 584        $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
 585        return $str;
 586}
 587
 588# Make control characterss "printable".
 589sub quot_cec {
 590        my $cntrl = shift;
 591        my %es = ( # character escape codes, aka escape sequences
 592                   "\t" => '\t',   # tab            (HT)
 593                   "\n" => '\n',   # line feed      (LF)
 594                   "\r" => '\r',   # carrige return (CR)
 595                   "\f" => '\f',   # form feed      (FF)
 596                   "\b" => '\b',   # backspace      (BS)
 597                   "\a" => '\a',   # alarm (bell)   (BEL)
 598                   "\e" => '\e',   # escape         (ESC)
 599                   "\013" => '\v', # vertical tab   (VT)
 600                   "\000" => '\0', # nul character  (NUL)
 601                   );
 602        my $chr = ( (exists $es{$cntrl})
 603                    ? $es{$cntrl}
 604                    : sprintf('\%03o', ord($cntrl)) );
 605        return "<span class=\"cntrl\">$chr</span>";
 606}
 607
 608# Alternatively use unicode control pictures codepoints.
 609sub quot_upr {
 610        my $cntrl = shift;
 611        my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
 612        return "<span class=\"cntrl\">$chr</span>";
 613}
 614
 615# quote control characters and escape filename to HTML
 616sub esc_path {
 617        my $str = shift;
 618
 619        $str = esc_html($str);
 620        $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
 621        return $str;
 622}
 623
 624# git may return quoted and escaped filenames
 625sub unquote {
 626        my $str = shift;
 627
 628        sub unq {
 629                my $seq = shift;
 630                my %es = ( # character escape codes, aka escape sequences
 631                        't' => "\t",   # tab            (HT, TAB)
 632                        'n' => "\n",   # newline        (NL)
 633                        'r' => "\r",   # return         (CR)
 634                        'f' => "\f",   # form feed      (FF)
 635                        'b' => "\b",   # backspace      (BS)
 636                        'a' => "\a",   # alarm (bell)   (BEL)
 637                        'e' => "\e",   # escape         (ESC)
 638                        'v' => "\013", # vertical tab   (VT)
 639                );
 640
 641                if ($seq =~ m/^[0-7]{1,3}$/) {
 642                        # octal char sequence
 643                        return chr(oct($seq));
 644                } elsif (exists $es{$seq}) {
 645                        # C escape sequence, aka character escape code
 646                        return $es{$seq}
 647                }
 648                # quoted ordinary character
 649                return $seq;
 650        }
 651
 652        if ($str =~ m/^"(.*)"$/) {
 653                # needs unquoting
 654                $str = $1;
 655                $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
 656        }
 657        return $str;
 658}
 659
 660# escape tabs (convert tabs to spaces)
 661sub untabify {
 662        my $line = shift;
 663
 664        while ((my $pos = index($line, "\t")) != -1) {
 665                if (my $count = (8 - ($pos % 8))) {
 666                        my $spaces = ' ' x $count;
 667                        $line =~ s/\t/$spaces/;
 668                }
 669        }
 670
 671        return $line;
 672}
 673
 674sub project_in_list {
 675        my $project = shift;
 676        my @list = git_get_projects_list();
 677        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 678}
 679
 680## ----------------------------------------------------------------------
 681## HTML aware string manipulation
 682
 683sub chop_str {
 684        my $str = shift;
 685        my $len = shift;
 686        my $add_len = shift || 10;
 687
 688        # allow only $len chars, but don't cut a word if it would fit in $add_len
 689        # if it doesn't fit, cut it if it's still longer than the dots we would add
 690        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 691        my $body = $1;
 692        my $tail = $2;
 693        if (length($tail) > 4) {
 694                $tail = " ...";
 695                $body =~ s/&[^;]*$//; # remove chopped character entities
 696        }
 697        return "$body$tail";
 698}
 699
 700## ----------------------------------------------------------------------
 701## functions returning short strings
 702
 703# CSS class for given age value (in seconds)
 704sub age_class {
 705        my $age = shift;
 706
 707        if ($age < 60*60*2) {
 708                return "age0";
 709        } elsif ($age < 60*60*24*2) {
 710                return "age1";
 711        } else {
 712                return "age2";
 713        }
 714}
 715
 716# convert age in seconds to "nn units ago" string
 717sub age_string {
 718        my $age = shift;
 719        my $age_str;
 720
 721        if ($age > 60*60*24*365*2) {
 722                $age_str = (int $age/60/60/24/365);
 723                $age_str .= " years ago";
 724        } elsif ($age > 60*60*24*(365/12)*2) {
 725                $age_str = int $age/60/60/24/(365/12);
 726                $age_str .= " months ago";
 727        } elsif ($age > 60*60*24*7*2) {
 728                $age_str = int $age/60/60/24/7;
 729                $age_str .= " weeks ago";
 730        } elsif ($age > 60*60*24*2) {
 731                $age_str = int $age/60/60/24;
 732                $age_str .= " days ago";
 733        } elsif ($age > 60*60*2) {
 734                $age_str = int $age/60/60;
 735                $age_str .= " hours ago";
 736        } elsif ($age > 60*2) {
 737                $age_str = int $age/60;
 738                $age_str .= " min ago";
 739        } elsif ($age > 2) {
 740                $age_str = int $age;
 741                $age_str .= " sec ago";
 742        } else {
 743                $age_str .= " right now";
 744        }
 745        return $age_str;
 746}
 747
 748# convert file mode in octal to symbolic file mode string
 749sub mode_str {
 750        my $mode = oct shift;
 751
 752        if (S_ISDIR($mode & S_IFMT)) {
 753                return 'drwxr-xr-x';
 754        } elsif (S_ISLNK($mode)) {
 755                return 'lrwxrwxrwx';
 756        } elsif (S_ISREG($mode)) {
 757                # git cares only about the executable bit
 758                if ($mode & S_IXUSR) {
 759                        return '-rwxr-xr-x';
 760                } else {
 761                        return '-rw-r--r--';
 762                };
 763        } else {
 764                return '----------';
 765        }
 766}
 767
 768# convert file mode in octal to file type string
 769sub file_type {
 770        my $mode = shift;
 771
 772        if ($mode !~ m/^[0-7]+$/) {
 773                return $mode;
 774        } else {
 775                $mode = oct $mode;
 776        }
 777
 778        if (S_ISDIR($mode & S_IFMT)) {
 779                return "directory";
 780        } elsif (S_ISLNK($mode)) {
 781                return "symlink";
 782        } elsif (S_ISREG($mode)) {
 783                return "file";
 784        } else {
 785                return "unknown";
 786        }
 787}
 788
 789# convert file mode in octal to file type description string
 790sub file_type_long {
 791        my $mode = shift;
 792
 793        if ($mode !~ m/^[0-7]+$/) {
 794                return $mode;
 795        } else {
 796                $mode = oct $mode;
 797        }
 798
 799        if (S_ISDIR($mode & S_IFMT)) {
 800                return "directory";
 801        } elsif (S_ISLNK($mode)) {
 802                return "symlink";
 803        } elsif (S_ISREG($mode)) {
 804                if ($mode & S_IXUSR) {
 805                        return "executable";
 806                } else {
 807                        return "file";
 808                };
 809        } else {
 810                return "unknown";
 811        }
 812}
 813
 814
 815## ----------------------------------------------------------------------
 816## functions returning short HTML fragments, or transforming HTML fragments
 817## which don't beling to other sections
 818
 819# format line of commit message.
 820sub format_log_line_html {
 821        my $line = shift;
 822
 823        $line = esc_html($line, -nbsp=>1);
 824        if ($line =~ m/([0-9a-fA-F]{40})/) {
 825                my $hash_text = $1;
 826                if (git_get_type($hash_text) eq "commit") {
 827                        my $link =
 828                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 829                                        -class => "text"}, $hash_text);
 830                        $line =~ s/$hash_text/$link/;
 831                }
 832        }
 833        return $line;
 834}
 835
 836# format marker of refs pointing to given object
 837sub format_ref_marker {
 838        my ($refs, $id) = @_;
 839        my $markers = '';
 840
 841        if (defined $refs->{$id}) {
 842                foreach my $ref (@{$refs->{$id}}) {
 843                        my ($type, $name) = qw();
 844                        # e.g. tags/v2.6.11 or heads/next
 845                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 846                                $type = $1;
 847                                $name = $2;
 848                        } else {
 849                                $type = "ref";
 850                                $name = $ref;
 851                        }
 852
 853                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 854                }
 855        }
 856
 857        if ($markers) {
 858                return ' <span class="refs">'. $markers . '</span>';
 859        } else {
 860                return "";
 861        }
 862}
 863
 864# format, perhaps shortened and with markers, title line
 865sub format_subject_html {
 866        my ($long, $short, $href, $extra) = @_;
 867        $extra = '' unless defined($extra);
 868
 869        if (length($short) < length($long)) {
 870                return $cgi->a({-href => $href, -class => "list subject",
 871                                -title => to_utf8($long)},
 872                       esc_html($short) . $extra);
 873        } else {
 874                return $cgi->a({-href => $href, -class => "list subject"},
 875                       esc_html($long)  . $extra);
 876        }
 877}
 878
 879# format patch (diff) line (rather not to be used for diff headers)
 880sub format_diff_line {
 881        my $line = shift;
 882        my ($from, $to) = @_;
 883        my $char = substr($line, 0, 1);
 884        my $diff_class = "";
 885
 886        chomp $line;
 887
 888        if ($char eq '+') {
 889                $diff_class = " add";
 890        } elsif ($char eq "-") {
 891                $diff_class = " rem";
 892        } elsif ($char eq "@") {
 893                $diff_class = " chunk_header";
 894        } elsif ($char eq "\\") {
 895                $diff_class = " incomplete";
 896        }
 897        $line = untabify($line);
 898        if ($from && $to && $line =~ m/^\@{2} /) {
 899                my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
 900                        $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
 901
 902                $from_lines = 0 unless defined $from_lines;
 903                $to_lines   = 0 unless defined $to_lines;
 904
 905                if ($from->{'href'}) {
 906                        $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
 907                                             -class=>"list"}, $from_text);
 908                }
 909                if ($to->{'href'}) {
 910                        $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
 911                                             -class=>"list"}, $to_text);
 912                }
 913                $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
 914                        "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
 915                return "<div class=\"diff$diff_class\">$line</div>\n";
 916        }
 917        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
 918}
 919
 920## ----------------------------------------------------------------------
 921## git utility subroutines, invoking git commands
 922
 923# returns path to the core git executable and the --git-dir parameter as list
 924sub git_cmd {
 925        return $GIT, '--git-dir='.$git_dir;
 926}
 927
 928# returns path to the core git executable and the --git-dir parameter as string
 929sub git_cmd_str {
 930        return join(' ', git_cmd());
 931}
 932
 933# get HEAD ref of given project as hash
 934sub git_get_head_hash {
 935        my $project = shift;
 936        my $o_git_dir = $git_dir;
 937        my $retval = undef;
 938        $git_dir = "$projectroot/$project";
 939        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 940                my $head = <$fd>;
 941                close $fd;
 942                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 943                        $retval = $1;
 944                }
 945        }
 946        if (defined $o_git_dir) {
 947                $git_dir = $o_git_dir;
 948        }
 949        return $retval;
 950}
 951
 952# get type of given object
 953sub git_get_type {
 954        my $hash = shift;
 955
 956        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 957        my $type = <$fd>;
 958        close $fd or return;
 959        chomp $type;
 960        return $type;
 961}
 962
 963sub git_get_project_config {
 964        my ($key, $type) = @_;
 965
 966        return unless ($key);
 967        $key =~ s/^gitweb\.//;
 968        return if ($key =~ m/\W/);
 969
 970        my @x = (git_cmd(), 'repo-config');
 971        if (defined $type) { push @x, $type; }
 972        push @x, "--get";
 973        push @x, "gitweb.$key";
 974        my $val = qx(@x);
 975        chomp $val;
 976        return ($val);
 977}
 978
 979# get hash of given path at given ref
 980sub git_get_hash_by_path {
 981        my $base = shift;
 982        my $path = shift || return undef;
 983        my $type = shift;
 984
 985        $path =~ s,/+$,,;
 986
 987        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 988                or die_error(undef, "Open git-ls-tree failed");
 989        my $line = <$fd>;
 990        close $fd or return undef;
 991
 992        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 993        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
 994        if (defined $type && $type ne $2) {
 995                # type doesn't match
 996                return undef;
 997        }
 998        return $3;
 999}
1000
1001## ......................................................................
1002## git utility functions, directly accessing git repository
1003
1004sub git_get_project_description {
1005        my $path = shift;
1006
1007        open my $fd, "$projectroot/$path/description" or return undef;
1008        my $descr = <$fd>;
1009        close $fd;
1010        chomp $descr;
1011        return $descr;
1012}
1013
1014sub git_get_project_url_list {
1015        my $path = shift;
1016
1017        open my $fd, "$projectroot/$path/cloneurl" or return;
1018        my @git_project_url_list = map { chomp; $_ } <$fd>;
1019        close $fd;
1020
1021        return wantarray ? @git_project_url_list : \@git_project_url_list;
1022}
1023
1024sub git_get_projects_list {
1025        my ($filter) = @_;
1026        my @list;
1027
1028        $filter ||= '';
1029        $filter =~ s/\.git$//;
1030
1031        if (-d $projects_list) {
1032                # search in directory
1033                my $dir = $projects_list . ($filter ? "/$filter" : '');
1034                # remove the trailing "/"
1035                $dir =~ s!/+$!!;
1036                my $pfxlen = length("$dir");
1037
1038                my ($check_forks) = gitweb_check_feature('forks');
1039
1040                File::Find::find({
1041                        follow_fast => 1, # follow symbolic links
1042                        dangling_symlinks => 0, # ignore dangling symlinks, silently
1043                        wanted => sub {
1044                                # skip project-list toplevel, if we get it.
1045                                return if (m!^[/.]$!);
1046                                # only directories can be git repositories
1047                                return unless (-d $_);
1048
1049                                my $subdir = substr($File::Find::name, $pfxlen + 1);
1050                                # we check related file in $projectroot
1051                                if ($check_forks and $subdir =~ m#/.#) {
1052                                        $File::Find::prune = 1;
1053                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1054                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1055                                        $File::Find::prune = 1;
1056                                }
1057                        },
1058                }, "$dir");
1059
1060        } elsif (-f $projects_list) {
1061                # read from file(url-encoded):
1062                # 'git%2Fgit.git Linus+Torvalds'
1063                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1064                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1065                open my ($fd), $projects_list or return;
1066                while (my $line = <$fd>) {
1067                        chomp $line;
1068                        my ($path, $owner) = split ' ', $line;
1069                        $path = unescape($path);
1070                        $owner = unescape($owner);
1071                        if (!defined $path) {
1072                                next;
1073                        }
1074                        if ($filter ne '') {
1075                                # looking for forks;
1076                                my $pfx = substr($path, 0, length($filter));
1077                                if ($pfx ne $filter) {
1078                                        next;
1079                                }
1080                                my $sfx = substr($path, length($filter));
1081                                if ($sfx !~ /^\/.*\.git$/) {
1082                                        next;
1083                                }
1084                        }
1085                        if (check_export_ok("$projectroot/$path")) {
1086                                my $pr = {
1087                                        path => $path,
1088                                        owner => to_utf8($owner),
1089                                };
1090                                push @list, $pr
1091                        }
1092                }
1093                close $fd;
1094        }
1095        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
1096        return @list;
1097}
1098
1099sub git_get_project_owner {
1100        my $project = shift;
1101        my $owner;
1102
1103        return undef unless $project;
1104
1105        # read from file (url-encoded):
1106        # 'git%2Fgit.git Linus+Torvalds'
1107        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1108        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1109        if (-f $projects_list) {
1110                open (my $fd , $projects_list);
1111                while (my $line = <$fd>) {
1112                        chomp $line;
1113                        my ($pr, $ow) = split ' ', $line;
1114                        $pr = unescape($pr);
1115                        $ow = unescape($ow);
1116                        if ($pr eq $project) {
1117                                $owner = to_utf8($ow);
1118                                last;
1119                        }
1120                }
1121                close $fd;
1122        }
1123        if (!defined $owner) {
1124                $owner = get_file_owner("$projectroot/$project");
1125        }
1126
1127        return $owner;
1128}
1129
1130sub git_get_last_activity {
1131        my ($path) = @_;
1132        my $fd;
1133
1134        $git_dir = "$projectroot/$path";
1135        open($fd, "-|", git_cmd(), 'for-each-ref',
1136             '--format=%(refname) %(committer)',
1137             '--sort=-committerdate',
1138             'refs/heads') or return;
1139        my $most_recent = <$fd>;
1140        close $fd or return;
1141        if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1142                my $timestamp = $1;
1143                my $age = time - $timestamp;
1144                return ($age, age_string($age));
1145        }
1146}
1147
1148sub git_get_references {
1149        my $type = shift || "";
1150        my %refs;
1151        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
1152        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
1153        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1154                or return;
1155
1156        while (my $line = <$fd>) {
1157                chomp $line;
1158                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
1159                        if (defined $refs{$1}) {
1160                                push @{$refs{$1}}, $2;
1161                        } else {
1162                                $refs{$1} = [ $2 ];
1163                        }
1164                }
1165        }
1166        close $fd or return;
1167        return \%refs;
1168}
1169
1170sub git_get_rev_name_tags {
1171        my $hash = shift || return undef;
1172
1173        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1174                or return;
1175        my $name_rev = <$fd>;
1176        close $fd;
1177
1178        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1179                return $1;
1180        } else {
1181                # catches also '$hash undefined' output
1182                return undef;
1183        }
1184}
1185
1186## ----------------------------------------------------------------------
1187## parse to hash functions
1188
1189sub parse_date {
1190        my $epoch = shift;
1191        my $tz = shift || "-0000";
1192
1193        my %date;
1194        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1195        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1196        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1197        $date{'hour'} = $hour;
1198        $date{'minute'} = $min;
1199        $date{'mday'} = $mday;
1200        $date{'day'} = $days[$wday];
1201        $date{'month'} = $months[$mon];
1202        $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1203                             $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1204        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1205                             $mday, $months[$mon], $hour ,$min;
1206        $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
1207                             1900+$year, $mon, $mday, $hour ,$min, $sec;
1208
1209        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1210        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1211        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1212        $date{'hour_local'} = $hour;
1213        $date{'minute_local'} = $min;
1214        $date{'tz_local'} = $tz;
1215        $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
1216                                  1900+$year, $mon+1, $mday,
1217                                  $hour, $min, $sec, $tz);
1218        return %date;
1219}
1220
1221sub parse_tag {
1222        my $tag_id = shift;
1223        my %tag;
1224        my @comment;
1225
1226        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1227        $tag{'id'} = $tag_id;
1228        while (my $line = <$fd>) {
1229                chomp $line;
1230                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1231                        $tag{'object'} = $1;
1232                } elsif ($line =~ m/^type (.+)$/) {
1233                        $tag{'type'} = $1;
1234                } elsif ($line =~ m/^tag (.+)$/) {
1235                        $tag{'name'} = $1;
1236                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1237                        $tag{'author'} = $1;
1238                        $tag{'epoch'} = $2;
1239                        $tag{'tz'} = $3;
1240                } elsif ($line =~ m/--BEGIN/) {
1241                        push @comment, $line;
1242                        last;
1243                } elsif ($line eq "") {
1244                        last;
1245                }
1246        }
1247        push @comment, <$fd>;
1248        $tag{'comment'} = \@comment;
1249        close $fd or return;
1250        if (!defined $tag{'name'}) {
1251                return
1252        };
1253        return %tag
1254}
1255
1256sub parse_commit {
1257        my $commit_id = shift;
1258        my $commit_text = shift;
1259
1260        my @commit_lines;
1261        my %co;
1262
1263        if (defined $commit_text) {
1264                @commit_lines = @$commit_text;
1265        } else {
1266                local $/ = "\0";
1267                open my $fd, "-|", git_cmd(), "rev-list",
1268                        "--header", "--parents", "--max-count=1",
1269                        $commit_id, "--"
1270                        or return;
1271                @commit_lines = split '\n', <$fd>;
1272                close $fd or return;
1273                pop @commit_lines;
1274        }
1275        my $header = shift @commit_lines;
1276        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1277                return;
1278        }
1279        ($co{'id'}, my @parents) = split ' ', $header;
1280        $co{'parents'} = \@parents;
1281        $co{'parent'} = $parents[0];
1282        while (my $line = shift @commit_lines) {
1283                last if $line eq "\n";
1284                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1285                        $co{'tree'} = $1;
1286                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1287                        $co{'author'} = $1;
1288                        $co{'author_epoch'} = $2;
1289                        $co{'author_tz'} = $3;
1290                        if ($co{'author'} =~ m/^([^<]+) </) {
1291                                $co{'author_name'} = $1;
1292                        } else {
1293                                $co{'author_name'} = $co{'author'};
1294                        }
1295                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1296                        $co{'committer'} = $1;
1297                        $co{'committer_epoch'} = $2;
1298                        $co{'committer_tz'} = $3;
1299                        $co{'committer_name'} = $co{'committer'};
1300                        $co{'committer_name'} =~ s/ <.*//;
1301                }
1302        }
1303        if (!defined $co{'tree'}) {
1304                return;
1305        };
1306
1307        foreach my $title (@commit_lines) {
1308                $title =~ s/^    //;
1309                if ($title ne "") {
1310                        $co{'title'} = chop_str($title, 80, 5);
1311                        # remove leading stuff of merges to make the interesting part visible
1312                        if (length($title) > 50) {
1313                                $title =~ s/^Automatic //;
1314                                $title =~ s/^merge (of|with) /Merge ... /i;
1315                                if (length($title) > 50) {
1316                                        $title =~ s/(http|rsync):\/\///;
1317                                }
1318                                if (length($title) > 50) {
1319                                        $title =~ s/(master|www|rsync)\.//;
1320                                }
1321                                if (length($title) > 50) {
1322                                        $title =~ s/kernel.org:?//;
1323                                }
1324                                if (length($title) > 50) {
1325                                        $title =~ s/\/pub\/scm//;
1326                                }
1327                        }
1328                        $co{'title_short'} = chop_str($title, 50, 5);
1329                        last;
1330                }
1331        }
1332        if ($co{'title'} eq "") {
1333                $co{'title'} = $co{'title_short'} = '(no commit message)';
1334        }
1335        # remove added spaces
1336        foreach my $line (@commit_lines) {
1337                $line =~ s/^    //;
1338        }
1339        $co{'comment'} = \@commit_lines;
1340
1341        my $age = time - $co{'committer_epoch'};
1342        $co{'age'} = $age;
1343        $co{'age_string'} = age_string($age);
1344        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1345        if ($age > 60*60*24*7*2) {
1346                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1347                $co{'age_string_age'} = $co{'age_string'};
1348        } else {
1349                $co{'age_string_date'} = $co{'age_string'};
1350                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1351        }
1352        return %co;
1353}
1354
1355# parse ref from ref_file, given by ref_id, with given type
1356sub parse_ref {
1357        my $ref_file = shift;
1358        my $ref_id = shift;
1359        my $type = shift || git_get_type($ref_id);
1360        my %ref_item;
1361
1362        $ref_item{'type'} = $type;
1363        $ref_item{'id'} = $ref_id;
1364        $ref_item{'epoch'} = 0;
1365        $ref_item{'age'} = "unknown";
1366        if ($type eq "tag") {
1367                my %tag = parse_tag($ref_id);
1368                $ref_item{'comment'} = $tag{'comment'};
1369                if ($tag{'type'} eq "commit") {
1370                        my %co = parse_commit($tag{'object'});
1371                        $ref_item{'epoch'} = $co{'committer_epoch'};
1372                        $ref_item{'age'} = $co{'age_string'};
1373                } elsif (defined($tag{'epoch'})) {
1374                        my $age = time - $tag{'epoch'};
1375                        $ref_item{'epoch'} = $tag{'epoch'};
1376                        $ref_item{'age'} = age_string($age);
1377                }
1378                $ref_item{'reftype'} = $tag{'type'};
1379                $ref_item{'name'} = $tag{'name'};
1380                $ref_item{'refid'} = $tag{'object'};
1381        } elsif ($type eq "commit"){
1382                my %co = parse_commit($ref_id);
1383                $ref_item{'reftype'} = "commit";
1384                $ref_item{'name'} = $ref_file;
1385                $ref_item{'title'} = $co{'title'};
1386                $ref_item{'refid'} = $ref_id;
1387                $ref_item{'epoch'} = $co{'committer_epoch'};
1388                $ref_item{'age'} = $co{'age_string'};
1389        } else {
1390                $ref_item{'reftype'} = $type;
1391                $ref_item{'name'} = $ref_file;
1392                $ref_item{'refid'} = $ref_id;
1393        }
1394
1395        return %ref_item;
1396}
1397
1398# parse line of git-diff-tree "raw" output
1399sub parse_difftree_raw_line {
1400        my $line = shift;
1401        my %res;
1402
1403        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1404        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1405        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1406                $res{'from_mode'} = $1;
1407                $res{'to_mode'} = $2;
1408                $res{'from_id'} = $3;
1409                $res{'to_id'} = $4;
1410                $res{'status'} = $5;
1411                $res{'similarity'} = $6;
1412                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1413                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1414                } else {
1415                        $res{'file'} = unquote($7);
1416                }
1417        }
1418        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1419        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1420                $res{'commit'} = $1;
1421        }
1422
1423        return wantarray ? %res : \%res;
1424}
1425
1426# parse line of git-ls-tree output
1427sub parse_ls_tree_line ($;%) {
1428        my $line = shift;
1429        my %opts = @_;
1430        my %res;
1431
1432        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1433        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1434
1435        $res{'mode'} = $1;
1436        $res{'type'} = $2;
1437        $res{'hash'} = $3;
1438        if ($opts{'-z'}) {
1439                $res{'name'} = $4;
1440        } else {
1441                $res{'name'} = unquote($4);
1442        }
1443
1444        return wantarray ? %res : \%res;
1445}
1446
1447## ......................................................................
1448## parse to array of hashes functions
1449
1450sub git_get_heads_list {
1451        my $limit = shift;
1452        my @headslist;
1453
1454        open my $fd, '-|', git_cmd(), 'for-each-ref',
1455                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1456                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1457                'refs/heads'
1458                or return;
1459        while (my $line = <$fd>) {
1460                my %ref_item;
1461
1462                chomp $line;
1463                my ($refinfo, $committerinfo) = split(/\0/, $line);
1464                my ($hash, $name, $title) = split(' ', $refinfo, 3);
1465                my ($committer, $epoch, $tz) =
1466                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1467                $name =~ s!^refs/heads/!!;
1468
1469                $ref_item{'name'}  = $name;
1470                $ref_item{'id'}    = $hash;
1471                $ref_item{'title'} = $title || '(no commit message)';
1472                $ref_item{'epoch'} = $epoch;
1473                if ($epoch) {
1474                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1475                } else {
1476                        $ref_item{'age'} = "unknown";
1477                }
1478
1479                push @headslist, \%ref_item;
1480        }
1481        close $fd;
1482
1483        return wantarray ? @headslist : \@headslist;
1484}
1485
1486sub git_get_tags_list {
1487        my $limit = shift;
1488        my @tagslist;
1489
1490        open my $fd, '-|', git_cmd(), 'for-each-ref',
1491                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1492                '--format=%(objectname) %(objecttype) %(refname) '.
1493                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1494                'refs/tags'
1495                or return;
1496        while (my $line = <$fd>) {
1497                my %ref_item;
1498
1499                chomp $line;
1500                my ($refinfo, $creatorinfo) = split(/\0/, $line);
1501                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1502                my ($creator, $epoch, $tz) =
1503                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1504                $name =~ s!^refs/tags/!!;
1505
1506                $ref_item{'type'} = $type;
1507                $ref_item{'id'} = $id;
1508                $ref_item{'name'} = $name;
1509                if ($type eq "tag") {
1510                        $ref_item{'subject'} = $title;
1511                        $ref_item{'reftype'} = $reftype;
1512                        $ref_item{'refid'}   = $refid;
1513                } else {
1514                        $ref_item{'reftype'} = $type;
1515                        $ref_item{'refid'}   = $id;
1516                }
1517
1518                if ($type eq "tag" || $type eq "commit") {
1519                        $ref_item{'epoch'} = $epoch;
1520                        if ($epoch) {
1521                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1522                        } else {
1523                                $ref_item{'age'} = "unknown";
1524                        }
1525                }
1526
1527                push @tagslist, \%ref_item;
1528        }
1529        close $fd;
1530
1531        return wantarray ? @tagslist : \@tagslist;
1532}
1533
1534## ----------------------------------------------------------------------
1535## filesystem-related functions
1536
1537sub get_file_owner {
1538        my $path = shift;
1539
1540        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1541        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1542        if (!defined $gcos) {
1543                return undef;
1544        }
1545        my $owner = $gcos;
1546        $owner =~ s/[,;].*$//;
1547        return to_utf8($owner);
1548}
1549
1550## ......................................................................
1551## mimetype related functions
1552
1553sub mimetype_guess_file {
1554        my $filename = shift;
1555        my $mimemap = shift;
1556        -r $mimemap or return undef;
1557
1558        my %mimemap;
1559        open(MIME, $mimemap) or return undef;
1560        while (<MIME>) {
1561                next if m/^#/; # skip comments
1562                my ($mime, $exts) = split(/\t+/);
1563                if (defined $exts) {
1564                        my @exts = split(/\s+/, $exts);
1565                        foreach my $ext (@exts) {
1566                                $mimemap{$ext} = $mime;
1567                        }
1568                }
1569        }
1570        close(MIME);
1571
1572        $filename =~ /\.([^.]*)$/;
1573        return $mimemap{$1};
1574}
1575
1576sub mimetype_guess {
1577        my $filename = shift;
1578        my $mime;
1579        $filename =~ /\./ or return undef;
1580
1581        if ($mimetypes_file) {
1582                my $file = $mimetypes_file;
1583                if ($file !~ m!^/!) { # if it is relative path
1584                        # it is relative to project
1585                        $file = "$projectroot/$project/$file";
1586                }
1587                $mime = mimetype_guess_file($filename, $file);
1588        }
1589        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1590        return $mime;
1591}
1592
1593sub blob_mimetype {
1594        my $fd = shift;
1595        my $filename = shift;
1596
1597        if ($filename) {
1598                my $mime = mimetype_guess($filename);
1599                $mime and return $mime;
1600        }
1601
1602        # just in case
1603        return $default_blob_plain_mimetype unless $fd;
1604
1605        if (-T $fd) {
1606                return 'text/plain' .
1607                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1608        } elsif (! $filename) {
1609                return 'application/octet-stream';
1610        } elsif ($filename =~ m/\.png$/i) {
1611                return 'image/png';
1612        } elsif ($filename =~ m/\.gif$/i) {
1613                return 'image/gif';
1614        } elsif ($filename =~ m/\.jpe?g$/i) {
1615                return 'image/jpeg';
1616        } else {
1617                return 'application/octet-stream';
1618        }
1619}
1620
1621## ======================================================================
1622## functions printing HTML: header, footer, error page
1623
1624sub git_header_html {
1625        my $status = shift || "200 OK";
1626        my $expires = shift;
1627
1628        my $title = "$site_name";
1629        if (defined $project) {
1630                $title .= " - $project";
1631                if (defined $action) {
1632                        $title .= "/$action";
1633                        if (defined $file_name) {
1634                                $title .= " - " . esc_path($file_name);
1635                                if ($action eq "tree" && $file_name !~ m|/$|) {
1636                                        $title .= "/";
1637                                }
1638                        }
1639                }
1640        }
1641        my $content_type;
1642        # require explicit support from the UA if we are to send the page as
1643        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1644        # we have to do this because MSIE sometimes globs '*/*', pretending to
1645        # support xhtml+xml but choking when it gets what it asked for.
1646        if (defined $cgi->http('HTTP_ACCEPT') &&
1647            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1648            $cgi->Accept('application/xhtml+xml') != 0) {
1649                $content_type = 'application/xhtml+xml';
1650        } else {
1651                $content_type = 'text/html';
1652        }
1653        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1654                           -status=> $status, -expires => $expires);
1655        print <<EOF;
1656<?xml version="1.0" encoding="utf-8"?>
1657<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1658<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1659<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1660<!-- git core binaries version $git_version -->
1661<head>
1662<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1663<meta name="generator" content="gitweb/$version git/$git_version"/>
1664<meta name="robots" content="index, nofollow"/>
1665<title>$title</title>
1666EOF
1667# print out each stylesheet that exist
1668        if (defined $stylesheet) {
1669#provides backwards capability for those people who define style sheet in a config file
1670                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1671        } else {
1672                foreach my $stylesheet (@stylesheets) {
1673                        next unless $stylesheet;
1674                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1675                }
1676        }
1677        if (defined $project) {
1678                printf('<link rel="alternate" title="%s log RSS feed" '.
1679                       'href="%s" type="application/rss+xml" />'."\n",
1680                       esc_param($project), href(action=>"rss"));
1681                printf('<link rel="alternate" title="%s log Atom feed" '.
1682                       'href="%s" type="application/atom+xml" />'."\n",
1683                       esc_param($project), href(action=>"atom"));
1684        } else {
1685                printf('<link rel="alternate" title="%s projects list" '.
1686                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1687                       $site_name, href(project=>undef, action=>"project_index"));
1688                printf('<link rel="alternate" title="%s projects feeds" '.
1689                       'href="%s" type="text/x-opml"/>'."\n",
1690                       $site_name, href(project=>undef, action=>"opml"));
1691        }
1692        if (defined $favicon) {
1693                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1694        }
1695
1696        print "</head>\n" .
1697              "<body>\n";
1698
1699        if (-f $site_header) {
1700                open (my $fd, $site_header);
1701                print <$fd>;
1702                close $fd;
1703        }
1704
1705        print "<div class=\"page_header\">\n" .
1706              $cgi->a({-href => esc_url($logo_url),
1707                       -title => $logo_label},
1708                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1709        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1710        if (defined $project) {
1711                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1712                if (defined $action) {
1713                        print " / $action";
1714                }
1715                print "\n";
1716                if (!defined $searchtext) {
1717                        $searchtext = "";
1718                }
1719                my $search_hash;
1720                if (defined $hash_base) {
1721                        $search_hash = $hash_base;
1722                } elsif (defined $hash) {
1723                        $search_hash = $hash;
1724                } else {
1725                        $search_hash = "HEAD";
1726                }
1727                $cgi->param("a", "search");
1728                $cgi->param("h", $search_hash);
1729                $cgi->param("p", $project);
1730                print $cgi->startform(-method => "get", -action => $my_uri) .
1731                      "<div class=\"search\">\n" .
1732                      $cgi->hidden(-name => "p") . "\n" .
1733                      $cgi->hidden(-name => "a") . "\n" .
1734                      $cgi->hidden(-name => "h") . "\n" .
1735                      $cgi->popup_menu(-name => 'st', -default => 'commit',
1736                                       -values => ['commit', 'author', 'committer', 'pickaxe']) .
1737                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1738                      " search:\n",
1739                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1740                      "</div>" .
1741                      $cgi->end_form() . "\n";
1742        }
1743        print "</div>\n";
1744}
1745
1746sub git_footer_html {
1747        print "<div class=\"page_footer\">\n";
1748        if (defined $project) {
1749                my $descr = git_get_project_description($project);
1750                if (defined $descr) {
1751                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1752                }
1753                print $cgi->a({-href => href(action=>"rss"),
1754                              -class => "rss_logo"}, "RSS") . " ";
1755                print $cgi->a({-href => href(action=>"atom"),
1756                              -class => "rss_logo"}, "Atom") . "\n";
1757        } else {
1758                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1759                              -class => "rss_logo"}, "OPML") . " ";
1760                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1761                              -class => "rss_logo"}, "TXT") . "\n";
1762        }
1763        print "</div>\n" ;
1764
1765        if (-f $site_footer) {
1766                open (my $fd, $site_footer);
1767                print <$fd>;
1768                close $fd;
1769        }
1770
1771        print "</body>\n" .
1772              "</html>";
1773}
1774
1775sub die_error {
1776        my $status = shift || "403 Forbidden";
1777        my $error = shift || "Malformed query, file missing or permission denied";
1778
1779        git_header_html($status);
1780        print <<EOF;
1781<div class="page_body">
1782<br /><br />
1783$status - $error
1784<br />
1785</div>
1786EOF
1787        git_footer_html();
1788        exit;
1789}
1790
1791## ----------------------------------------------------------------------
1792## functions printing or outputting HTML: navigation
1793
1794sub git_print_page_nav {
1795        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1796        $extra = '' if !defined $extra; # pager or formats
1797
1798        my @navs = qw(summary shortlog log commit commitdiff tree);
1799        if ($suppress) {
1800                @navs = grep { $_ ne $suppress } @navs;
1801        }
1802
1803        my %arg = map { $_ => {action=>$_} } @navs;
1804        if (defined $head) {
1805                for (qw(commit commitdiff)) {
1806                        $arg{$_}{hash} = $head;
1807                }
1808                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1809                        for (qw(shortlog log)) {
1810                                $arg{$_}{hash} = $head;
1811                        }
1812                }
1813        }
1814        $arg{tree}{hash} = $treehead if defined $treehead;
1815        $arg{tree}{hash_base} = $treebase if defined $treebase;
1816
1817        print "<div class=\"page_nav\">\n" .
1818                (join " | ",
1819                 map { $_ eq $current ?
1820                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1821                 } @navs);
1822        print "<br/>\n$extra<br/>\n" .
1823              "</div>\n";
1824}
1825
1826sub format_paging_nav {
1827        my ($action, $hash, $head, $page, $nrevs) = @_;
1828        my $paging_nav;
1829
1830
1831        if ($hash ne $head || $page) {
1832                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1833        } else {
1834                $paging_nav .= "HEAD";
1835        }
1836
1837        if ($page > 0) {
1838                $paging_nav .= " &sdot; " .
1839                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1840                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1841        } else {
1842                $paging_nav .= " &sdot; prev";
1843        }
1844
1845        if ($nrevs >= (100 * ($page+1)-1)) {
1846                $paging_nav .= " &sdot; " .
1847                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1848                                 -accesskey => "n", -title => "Alt-n"}, "next");
1849        } else {
1850                $paging_nav .= " &sdot; next";
1851        }
1852
1853        return $paging_nav;
1854}
1855
1856## ......................................................................
1857## functions printing or outputting HTML: div
1858
1859sub git_print_header_div {
1860        my ($action, $title, $hash, $hash_base) = @_;
1861        my %args = ();
1862
1863        $args{action} = $action;
1864        $args{hash} = $hash if $hash;
1865        $args{hash_base} = $hash_base if $hash_base;
1866
1867        print "<div class=\"header\">\n" .
1868              $cgi->a({-href => href(%args), -class => "title"},
1869              $title ? $title : $action) .
1870              "\n</div>\n";
1871}
1872
1873#sub git_print_authorship (\%) {
1874sub git_print_authorship {
1875        my $co = shift;
1876
1877        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1878        print "<div class=\"author_date\">" .
1879              esc_html($co->{'author_name'}) .
1880              " [$ad{'rfc2822'}";
1881        if ($ad{'hour_local'} < 6) {
1882                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1883                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1884        } else {
1885                printf(" (%02d:%02d %s)",
1886                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1887        }
1888        print "]</div>\n";
1889}
1890
1891sub git_print_page_path {
1892        my $name = shift;
1893        my $type = shift;
1894        my $hb = shift;
1895
1896
1897        print "<div class=\"page_path\">";
1898        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1899                      -title => 'tree root'}, "[$project]");
1900        print " / ";
1901        if (defined $name) {
1902                my @dirname = split '/', $name;
1903                my $basename = pop @dirname;
1904                my $fullname = '';
1905
1906                foreach my $dir (@dirname) {
1907                        $fullname .= ($fullname ? '/' : '') . $dir;
1908                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1909                                                     hash_base=>$hb),
1910                                      -title => esc_html($fullname)}, esc_path($dir));
1911                        print " / ";
1912                }
1913                if (defined $type && $type eq 'blob') {
1914                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1915                                                     hash_base=>$hb),
1916                                      -title => esc_html($name)}, esc_path($basename));
1917                } elsif (defined $type && $type eq 'tree') {
1918                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1919                                                     hash_base=>$hb),
1920                                      -title => esc_html($name)}, esc_path($basename));
1921                        print " / ";
1922                } else {
1923                        print esc_path($basename);
1924                }
1925        }
1926        print "<br/></div>\n";
1927}
1928
1929# sub git_print_log (\@;%) {
1930sub git_print_log ($;%) {
1931        my $log = shift;
1932        my %opts = @_;
1933
1934        if ($opts{'-remove_title'}) {
1935                # remove title, i.e. first line of log
1936                shift @$log;
1937        }
1938        # remove leading empty lines
1939        while (defined $log->[0] && $log->[0] eq "") {
1940                shift @$log;
1941        }
1942
1943        # print log
1944        my $signoff = 0;
1945        my $empty = 0;
1946        foreach my $line (@$log) {
1947                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1948                        $signoff = 1;
1949                        $empty = 0;
1950                        if (! $opts{'-remove_signoff'}) {
1951                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1952                                next;
1953                        } else {
1954                                # remove signoff lines
1955                                next;
1956                        }
1957                } else {
1958                        $signoff = 0;
1959                }
1960
1961                # print only one empty line
1962                # do not print empty line after signoff
1963                if ($line eq "") {
1964                        next if ($empty || $signoff);
1965                        $empty = 1;
1966                } else {
1967                        $empty = 0;
1968                }
1969
1970                print format_log_line_html($line) . "<br/>\n";
1971        }
1972
1973        if ($opts{'-final_empty_line'}) {
1974                # end with single empty line
1975                print "<br/>\n" unless $empty;
1976        }
1977}
1978
1979# print tree entry (row of git_tree), but without encompassing <tr> element
1980sub git_print_tree_entry {
1981        my ($t, $basedir, $hash_base, $have_blame) = @_;
1982
1983        my %base_key = ();
1984        $base_key{hash_base} = $hash_base if defined $hash_base;
1985
1986        # The format of a table row is: mode list link.  Where mode is
1987        # the mode of the entry, list is the name of the entry, an href,
1988        # and link is the action links of the entry.
1989
1990        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1991        if ($t->{'type'} eq "blob") {
1992                print "<td class=\"list\">" .
1993                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1994                                               file_name=>"$basedir$t->{'name'}", %base_key),
1995                                -class => "list"}, esc_path($t->{'name'})) . "</td>\n";
1996                print "<td class=\"link\">";
1997                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1998                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1999                              "blob");
2000                if ($have_blame) {
2001                        print " | " .
2002                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
2003                                                           file_name=>"$basedir$t->{'name'}", %base_key)},
2004                                            "blame");
2005                }
2006                if (defined $hash_base) {
2007                        print " | " .
2008                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2009                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2010                                      "history");
2011                }
2012                print " | " .
2013                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2014                                               file_name=>"$basedir$t->{'name'}")},
2015                                "raw");
2016                print "</td>\n";
2017
2018        } elsif ($t->{'type'} eq "tree") {
2019                print "<td class=\"list\">";
2020                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2021                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2022                              esc_path($t->{'name'}));
2023                print "</td>\n";
2024                print "<td class=\"link\">";
2025                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2026                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2027                              "tree");
2028                if (defined $hash_base) {
2029                        print " | " .
2030                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2031                                                     file_name=>"$basedir$t->{'name'}")},
2032                                      "history");
2033                }
2034                print "</td>\n";
2035        }
2036}
2037
2038## ......................................................................
2039## functions printing large fragments of HTML
2040
2041sub git_difftree_body {
2042        my ($difftree, $hash, $parent) = @_;
2043        my ($have_blame) = gitweb_check_feature('blame');
2044        print "<div class=\"list_head\">\n";
2045        if ($#{$difftree} > 10) {
2046                print(($#{$difftree} + 1) . " files changed:\n");
2047        }
2048        print "</div>\n";
2049
2050        print "<table class=\"diff_tree\">\n";
2051        my $alternate = 1;
2052        my $patchno = 0;
2053        foreach my $line (@{$difftree}) {
2054                my %diff = parse_difftree_raw_line($line);
2055
2056                if ($alternate) {
2057                        print "<tr class=\"dark\">\n";
2058                } else {
2059                        print "<tr class=\"light\">\n";
2060                }
2061                $alternate ^= 1;
2062
2063                my ($to_mode_oct, $to_mode_str, $to_file_type);
2064                my ($from_mode_oct, $from_mode_str, $from_file_type);
2065                if ($diff{'to_mode'} ne ('0' x 6)) {
2066                        $to_mode_oct = oct $diff{'to_mode'};
2067                        if (S_ISREG($to_mode_oct)) { # only for regular file
2068                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2069                        }
2070                        $to_file_type = file_type($diff{'to_mode'});
2071                }
2072                if ($diff{'from_mode'} ne ('0' x 6)) {
2073                        $from_mode_oct = oct $diff{'from_mode'};
2074                        if (S_ISREG($to_mode_oct)) { # only for regular file
2075                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2076                        }
2077                        $from_file_type = file_type($diff{'from_mode'});
2078                }
2079
2080                if ($diff{'status'} eq "A") { # created
2081                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2082                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2083                        $mode_chng   .= "]</span>";
2084                        print "<td>";
2085                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2086                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2087                                      -class => "list"}, esc_path($diff{'file'}));
2088                        print "</td>\n";
2089                        print "<td>$mode_chng</td>\n";
2090                        print "<td class=\"link\">";
2091                        if ($action eq 'commitdiff') {
2092                                # link to patch
2093                                $patchno++;
2094                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2095                                print " | ";
2096                        }
2097                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2098                                                     hash_base=>$hash, file_name=>$diff{'file'})},
2099                                      "blob") . " | ";
2100                        print "</td>\n";
2101
2102                } elsif ($diff{'status'} eq "D") { # deleted
2103                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2104                        print "<td>";
2105                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2106                                                     hash_base=>$parent, file_name=>$diff{'file'}),
2107                                       -class => "list"}, esc_path($diff{'file'}));
2108                        print "</td>\n";
2109                        print "<td>$mode_chng</td>\n";
2110                        print "<td class=\"link\">";
2111                        if ($action eq 'commitdiff') {
2112                                # link to patch
2113                                $patchno++;
2114                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2115                                print " | ";
2116                        }
2117                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2118                                                     hash_base=>$parent, file_name=>$diff{'file'})},
2119                                      "blob") . " | ";
2120                        if ($have_blame) {
2121                                print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2122                                                             file_name=>$diff{'file'})},
2123                                              "blame") . " | ";
2124                        }
2125                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2126                                                     file_name=>$diff{'file'})},
2127                                      "history");
2128                        print "</td>\n";
2129
2130                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
2131                        my $mode_chnge = "";
2132                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2133                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
2134                                if ($from_file_type != $to_file_type) {
2135                                        $mode_chnge .= " from $from_file_type to $to_file_type";
2136                                }
2137                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
2138                                        if ($from_mode_str && $to_mode_str) {
2139                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2140                                        } elsif ($to_mode_str) {
2141                                                $mode_chnge .= " mode: $to_mode_str";
2142                                        }
2143                                }
2144                                $mode_chnge .= "]</span>\n";
2145                        }
2146                        print "<td>";
2147                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2148                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2149                                      -class => "list"}, esc_path($diff{'file'}));
2150                        print "</td>\n";
2151                        print "<td>$mode_chnge</td>\n";
2152                        print "<td class=\"link\">";
2153                        if ($action eq 'commitdiff') {
2154                                # link to patch
2155                                $patchno++;
2156                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2157                                      " | ";
2158                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2159                                # "commit" view and modified file (not onlu mode changed)
2160                                print $cgi->a({-href => href(action=>"blobdiff",
2161                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2162                                                             hash_base=>$hash, hash_parent_base=>$parent,
2163                                                             file_name=>$diff{'file'})},
2164                                              "diff") .
2165                                      " | ";
2166                        }
2167                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2168                                                     hash_base=>$hash, file_name=>$diff{'file'})},
2169                                       "blob") . " | ";
2170                        if ($have_blame) {
2171                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2172                                                             file_name=>$diff{'file'})},
2173                                              "blame") . " | ";
2174                        }
2175                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2176                                                     file_name=>$diff{'file'})},
2177                                      "history");
2178                        print "</td>\n";
2179
2180                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
2181                        my %status_name = ('R' => 'moved', 'C' => 'copied');
2182                        my $nstatus = $status_name{$diff{'status'}};
2183                        my $mode_chng = "";
2184                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2185                                # mode also for directories, so we cannot use $to_mode_str
2186                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2187                        }
2188                        print "<td>" .
2189                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2190                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
2191                                      -class => "list"}, esc_path($diff{'to_file'})) . "</td>\n" .
2192                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2193                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2194                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
2195                                      -class => "list"}, esc_path($diff{'from_file'})) .
2196                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2197                              "<td class=\"link\">";
2198                        if ($action eq 'commitdiff') {
2199                                # link to patch
2200                                $patchno++;
2201                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2202                                      " | ";
2203                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2204                                # "commit" view and modified file (not only pure rename or copy)
2205                                print $cgi->a({-href => href(action=>"blobdiff",
2206                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2207                                                             hash_base=>$hash, hash_parent_base=>$parent,
2208                                                             file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2209                                              "diff") .
2210                                      " | ";
2211                        }
2212                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2213                                                     hash_base=>$parent, file_name=>$diff{'to_file'})},
2214                                      "blob") . " | ";
2215                        if ($have_blame) {
2216                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2217                                                             file_name=>$diff{'to_file'})},
2218                                              "blame") . " | ";
2219                        }
2220                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2221                                                    file_name=>$diff{'to_file'})},
2222                                      "history");
2223                        print "</td>\n";
2224
2225                } # we should not encounter Unmerged (U) or Unknown (X) status
2226                print "</tr>\n";
2227        }
2228        print "</table>\n";
2229}
2230
2231sub git_patchset_body {
2232        my ($fd, $difftree, $hash, $hash_parent) = @_;
2233
2234        my $patch_idx = 0;
2235        my $patch_line;
2236        my $diffinfo;
2237        my (%from, %to);
2238        my ($from_id, $to_id);
2239
2240        print "<div class=\"patchset\">\n";
2241
2242        # skip to first patch
2243        while ($patch_line = <$fd>) {
2244                chomp $patch_line;
2245
2246                last if ($patch_line =~ m/^diff /);
2247        }
2248
2249 PATCH:
2250        while ($patch_line) {
2251                my @diff_header;
2252
2253                # git diff header
2254                #assert($patch_line =~ m/^diff /) if DEBUG;
2255                #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
2256                push @diff_header, $patch_line;
2257
2258                # extended diff header
2259        EXTENDED_HEADER:
2260                while ($patch_line = <$fd>) {
2261                        chomp $patch_line;
2262
2263                        last EXTENDED_HEADER if ($patch_line =~ m/^--- /);
2264
2265                        if ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
2266                                $from_id = $1;
2267                                $to_id   = $2;
2268                        }
2269
2270                        push @diff_header, $patch_line;
2271                }
2272                #last PATCH unless $patch_line;
2273                my $last_patch_line = $patch_line;
2274
2275                # check if current patch belong to current raw line
2276                # and parse raw git-diff line if needed
2277                if (defined $diffinfo &&
2278                    $diffinfo->{'from_id'} eq $from_id &&
2279                    $diffinfo->{'to_id'}   eq $to_id) {
2280                        # this is split patch
2281                        print "<div class=\"patch cont\">\n";
2282                } else {
2283                        # advance raw git-diff output if needed
2284                        $patch_idx++ if defined $diffinfo;
2285
2286                        # read and prepare patch information
2287                        if (ref($difftree->[$patch_idx]) eq "HASH") {
2288                                # pre-parsed (or generated by hand)
2289                                $diffinfo = $difftree->[$patch_idx];
2290                        } else {
2291                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2292                        }
2293                        $from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2294                        $to{'file'}   = $diffinfo->{'to_file'}   || $diffinfo->{'file'};
2295                        if ($diffinfo->{'status'} ne "A") { # not new (added) file
2296                                $from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2297                                                     hash=>$diffinfo->{'from_id'},
2298                                                     file_name=>$from{'file'});
2299                        }
2300                        if ($diffinfo->{'status'} ne "D") { # not deleted file
2301                                $to{'href'} = href(action=>"blob", hash_base=>$hash,
2302                                                   hash=>$diffinfo->{'to_id'},
2303                                                   file_name=>$to{'file'});
2304                        }
2305                        # this is first patch for raw difftree line with $patch_idx index
2306                        # we index @$difftree array from 0, but number patches from 1
2307                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2308                }
2309
2310                # print "git diff" header
2311                $patch_line = shift @diff_header;
2312                $patch_line =~ s!^(diff (.*?) )"?a/.*$!$1!;
2313                if ($from{'href'}) {
2314                        $patch_line .= $cgi->a({-href => $from{'href'}, -class => "path"},
2315                                               'a/' . esc_path($from{'file'}));
2316                } else { # file was added
2317                        $patch_line .= 'a/' . esc_path($from{'file'});
2318                }
2319                $patch_line .= ' ';
2320                if ($to{'href'}) {
2321                        $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2322                                               'b/' . esc_path($to{'file'}));
2323                } else { # file was deleted
2324                        $patch_line .= 'b/' . esc_path($to{'file'});
2325                }
2326                print "<div class=\"diff header\">$patch_line</div>\n";
2327
2328                # print extended diff header
2329                print "<div class=\"diff extended_header\">\n" if (@diff_header > 0);
2330        EXTENDED_HEADER:
2331                foreach $patch_line (@diff_header) {
2332                        # match <path>
2333                        if ($patch_line =~ s!^((copy|rename) from ).*$!$1! && $from{'href'}) {
2334                                $patch_line .= $cgi->a({-href=>$from{'href'}, -class=>"path"},
2335                                                        esc_path($from{'file'}));
2336                        }
2337                        if ($patch_line =~ s!^((copy|rename) to ).*$!$1! && $to{'href'}) {
2338                                $patch_line = $cgi->a({-href=>$to{'href'}, -class=>"path"},
2339                                                      esc_path($to{'file'}));
2340                        }
2341                        # match <mode>
2342                        if ($patch_line =~ m/\s(\d{6})$/) {
2343                                $patch_line .= '<span class="info"> (' .
2344                                               file_type_long($1) .
2345                                               ')</span>';
2346                        }
2347                        # match <hash>
2348                        if ($patch_line =~ m/^index/) {
2349                                my ($from_link, $to_link);
2350                                if ($from{'href'}) {
2351                                        $from_link = $cgi->a({-href=>$from{'href'}, -class=>"hash"},
2352                                                             substr($diffinfo->{'from_id'},0,7));
2353                                } else {
2354                                        $from_link = '0' x 7;
2355                                }
2356                                if ($to{'href'}) {
2357                                        $to_link = $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2358                                                           substr($diffinfo->{'to_id'},0,7));
2359                                } else {
2360                                        $to_link = '0' x 7;
2361                                }
2362                                #affirm {
2363                                #       my ($from_hash, $to_hash) =
2364                                #               ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/);
2365                                #       my ($from_id, $to_id) =
2366                                #               ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2367                                #       ($from_hash eq $from_id) && ($to_hash eq $to_id);
2368                                #} if DEBUG;
2369                                my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2370                                $patch_line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
2371                        }
2372                        print $patch_line . "<br/>\n";
2373                }
2374                print "</div>\n"  if (@diff_header > 0); # class="diff extended_header"
2375
2376                # from-file/to-file diff header
2377                $patch_line = $last_patch_line;
2378                #assert($patch_line =~ m/^---/) if DEBUG;
2379                if ($from{'href'}) {
2380                        $patch_line = '--- a/' .
2381                                      $cgi->a({-href=>$from{'href'}, -class=>"path"},
2382                                              esc_path($from{'file'}));
2383                }
2384                print "<div class=\"diff from_file\">$patch_line</div>\n";
2385
2386                $patch_line = <$fd>;
2387                #last PATCH unless $patch_line;
2388                chomp $patch_line;
2389
2390                #assert($patch_line =~ m/^+++/) if DEBUG;
2391                if ($to{'href'}) {
2392                        $patch_line = '+++ b/' .
2393                                      $cgi->a({-href=>$to{'href'}, -class=>"path"},
2394                                              esc_path($to{'file'}));
2395                }
2396                print "<div class=\"diff to_file\">$patch_line</div>\n";
2397
2398                # the patch itself
2399        LINE:
2400                while ($patch_line = <$fd>) {
2401                        chomp $patch_line;
2402
2403                        next PATCH if ($patch_line =~ m/^diff /);
2404
2405                        print format_diff_line($patch_line, \%from, \%to);
2406                }
2407
2408        } continue {
2409                print "</div>\n"; # class="patch"
2410        }
2411
2412        print "</div>\n"; # class="patchset"
2413}
2414
2415# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2416
2417sub git_project_list_body {
2418        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2419
2420        my ($check_forks) = gitweb_check_feature('forks');
2421
2422        my @projects;
2423        foreach my $pr (@$projlist) {
2424                my (@aa) = git_get_last_activity($pr->{'path'});
2425                unless (@aa) {
2426                        next;
2427                }
2428                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2429                if (!defined $pr->{'descr'}) {
2430                        my $descr = git_get_project_description($pr->{'path'}) || "";
2431                        $pr->{'descr'} = chop_str($descr, 25, 5);
2432                }
2433                if (!defined $pr->{'owner'}) {
2434                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2435                }
2436                if ($check_forks) {
2437                        my $pname = $pr->{'path'};
2438                        if (($pname =~ s/\.git$//) &&
2439                            ($pname !~ /\/$/) &&
2440                            (-d "$projectroot/$pname")) {
2441                                $pr->{'forks'} = "-d $projectroot/$pname";
2442                        }
2443                        else {
2444                                $pr->{'forks'} = 0;
2445                        }
2446                }
2447                push @projects, $pr;
2448        }
2449
2450        $order ||= "project";
2451        $from = 0 unless defined $from;
2452        $to = $#projects if (!defined $to || $#projects < $to);
2453
2454        print "<table class=\"project_list\">\n";
2455        unless ($no_header) {
2456                print "<tr>\n";
2457                if ($check_forks) {
2458                        print "<th></th>\n";
2459                }
2460                if ($order eq "project") {
2461                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2462                        print "<th>Project</th>\n";
2463                } else {
2464                        print "<th>" .
2465                              $cgi->a({-href => href(project=>undef, order=>'project'),
2466                                       -class => "header"}, "Project") .
2467                              "</th>\n";
2468                }
2469                if ($order eq "descr") {
2470                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2471                        print "<th>Description</th>\n";
2472                } else {
2473                        print "<th>" .
2474                              $cgi->a({-href => href(project=>undef, order=>'descr'),
2475                                       -class => "header"}, "Description") .
2476                              "</th>\n";
2477                }
2478                if ($order eq "owner") {
2479                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2480                        print "<th>Owner</th>\n";
2481                } else {
2482                        print "<th>" .
2483                              $cgi->a({-href => href(project=>undef, order=>'owner'),
2484                                       -class => "header"}, "Owner") .
2485                              "</th>\n";
2486                }
2487                if ($order eq "age") {
2488                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2489                        print "<th>Last Change</th>\n";
2490                } else {
2491                        print "<th>" .
2492                              $cgi->a({-href => href(project=>undef, order=>'age'),
2493                                       -class => "header"}, "Last Change") .
2494                              "</th>\n";
2495                }
2496                print "<th></th>\n" .
2497                      "</tr>\n";
2498        }
2499        my $alternate = 1;
2500        for (my $i = $from; $i <= $to; $i++) {
2501                my $pr = $projects[$i];
2502                if ($alternate) {
2503                        print "<tr class=\"dark\">\n";
2504                } else {
2505                        print "<tr class=\"light\">\n";
2506                }
2507                $alternate ^= 1;
2508                if ($check_forks) {
2509                        print "<td>";
2510                        if ($pr->{'forks'}) {
2511                                print "<!-- $pr->{'forks'} -->\n";
2512                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2513                        }
2514                        print "</td>\n";
2515                }
2516                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2517                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2518                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2519                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2520                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2521                      $pr->{'age_string'} . "</td>\n" .
2522                      "<td class=\"link\">" .
2523                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2524                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2525                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2526                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2527                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
2528                      "</td>\n" .
2529                      "</tr>\n";
2530        }
2531        if (defined $extra) {
2532                print "<tr>\n";
2533                if ($check_forks) {
2534                        print "<td></td>\n";
2535                }
2536                print "<td colspan=\"5\">$extra</td>\n" .
2537                      "</tr>\n";
2538        }
2539        print "</table>\n";
2540}
2541
2542sub git_shortlog_body {
2543        # uses global variable $project
2544        my ($revlist, $from, $to, $refs, $extra) = @_;
2545
2546        $from = 0 unless defined $from;
2547        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2548
2549        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2550        my $alternate = 1;
2551        for (my $i = $from; $i <= $to; $i++) {
2552                my $commit = $revlist->[$i];
2553                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2554                my $ref = format_ref_marker($refs, $commit);
2555                my %co = parse_commit($commit);
2556                if ($alternate) {
2557                        print "<tr class=\"dark\">\n";
2558                } else {
2559                        print "<tr class=\"light\">\n";
2560                }
2561                $alternate ^= 1;
2562                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2563                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2564                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2565                      "<td>";
2566                print format_subject_html($co{'title'}, $co{'title_short'},
2567                                          href(action=>"commit", hash=>$commit), $ref);
2568                print "</td>\n" .
2569                      "<td class=\"link\">" .
2570                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2571                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2572                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2573                if (gitweb_have_snapshot()) {
2574                        print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2575                }
2576                print "</td>\n" .
2577                      "</tr>\n";
2578        }
2579        if (defined $extra) {
2580                print "<tr>\n" .
2581                      "<td colspan=\"4\">$extra</td>\n" .
2582                      "</tr>\n";
2583        }
2584        print "</table>\n";
2585}
2586
2587sub git_history_body {
2588        # Warning: assumes constant type (blob or tree) during history
2589        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2590
2591        $from = 0 unless defined $from;
2592        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2593
2594        print "<table class=\"history\" cellspacing=\"0\">\n";
2595        my $alternate = 1;
2596        for (my $i = $from; $i <= $to; $i++) {
2597                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2598                        next;
2599                }
2600
2601                my $commit = $1;
2602                my %co = parse_commit($commit);
2603                if (!%co) {
2604                        next;
2605                }
2606
2607                my $ref = format_ref_marker($refs, $commit);
2608
2609                if ($alternate) {
2610                        print "<tr class=\"dark\">\n";
2611                } else {
2612                        print "<tr class=\"light\">\n";
2613                }
2614                $alternate ^= 1;
2615                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2616                      # shortlog uses      chop_str($co{'author_name'}, 10)
2617                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2618                      "<td>";
2619                # originally git_history used chop_str($co{'title'}, 50)
2620                print format_subject_html($co{'title'}, $co{'title_short'},
2621                                          href(action=>"commit", hash=>$commit), $ref);
2622                print "</td>\n" .
2623                      "<td class=\"link\">" .
2624                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2625                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2626
2627                if ($ftype eq 'blob') {
2628                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2629                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2630                        if (defined $blob_current && defined $blob_parent &&
2631                                        $blob_current ne $blob_parent) {
2632                                print " | " .
2633                                        $cgi->a({-href => href(action=>"blobdiff",
2634                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2635                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2636                                                               file_name=>$file_name)},
2637                                                "diff to current");
2638                        }
2639                }
2640                print "</td>\n" .
2641                      "</tr>\n";
2642        }
2643        if (defined $extra) {
2644                print "<tr>\n" .
2645                      "<td colspan=\"4\">$extra</td>\n" .
2646                      "</tr>\n";
2647        }
2648        print "</table>\n";
2649}
2650
2651sub git_tags_body {
2652        # uses global variable $project
2653        my ($taglist, $from, $to, $extra) = @_;
2654        $from = 0 unless defined $from;
2655        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2656
2657        print "<table class=\"tags\" cellspacing=\"0\">\n";
2658        my $alternate = 1;
2659        for (my $i = $from; $i <= $to; $i++) {
2660                my $entry = $taglist->[$i];
2661                my %tag = %$entry;
2662                my $comment = $tag{'subject'};
2663                my $comment_short;
2664                if (defined $comment) {
2665                        $comment_short = chop_str($comment, 30, 5);
2666                }
2667                if ($alternate) {
2668                        print "<tr class=\"dark\">\n";
2669                } else {
2670                        print "<tr class=\"light\">\n";
2671                }
2672                $alternate ^= 1;
2673                print "<td><i>$tag{'age'}</i></td>\n" .
2674                      "<td>" .
2675                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2676                               -class => "list name"}, esc_html($tag{'name'})) .
2677                      "</td>\n" .
2678                      "<td>";
2679                if (defined $comment) {
2680                        print format_subject_html($comment, $comment_short,
2681                                                  href(action=>"tag", hash=>$tag{'id'}));
2682                }
2683                print "</td>\n" .
2684                      "<td class=\"selflink\">";
2685                if ($tag{'type'} eq "tag") {
2686                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2687                } else {
2688                        print "&nbsp;";
2689                }
2690                print "</td>\n" .
2691                      "<td class=\"link\">" . " | " .
2692                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2693                if ($tag{'reftype'} eq "commit") {
2694                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2695                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
2696                } elsif ($tag{'reftype'} eq "blob") {
2697                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2698                }
2699                print "</td>\n" .
2700                      "</tr>";
2701        }
2702        if (defined $extra) {
2703                print "<tr>\n" .
2704                      "<td colspan=\"5\">$extra</td>\n" .
2705                      "</tr>\n";
2706        }
2707        print "</table>\n";
2708}
2709
2710sub git_heads_body {
2711        # uses global variable $project
2712        my ($headlist, $head, $from, $to, $extra) = @_;
2713        $from = 0 unless defined $from;
2714        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2715
2716        print "<table class=\"heads\" cellspacing=\"0\">\n";
2717        my $alternate = 1;
2718        for (my $i = $from; $i <= $to; $i++) {
2719                my $entry = $headlist->[$i];
2720                my %ref = %$entry;
2721                my $curr = $ref{'id'} eq $head;
2722                if ($alternate) {
2723                        print "<tr class=\"dark\">\n";
2724                } else {
2725                        print "<tr class=\"light\">\n";
2726                }
2727                $alternate ^= 1;
2728                print "<td><i>$ref{'age'}</i></td>\n" .
2729                      ($curr ? "<td class=\"current_head\">" : "<td>") .
2730                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
2731                               -class => "list name"},esc_html($ref{'name'})) .
2732                      "</td>\n" .
2733                      "<td class=\"link\">" .
2734                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
2735                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
2736                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
2737                      "</td>\n" .
2738                      "</tr>";
2739        }
2740        if (defined $extra) {
2741                print "<tr>\n" .
2742                      "<td colspan=\"3\">$extra</td>\n" .
2743                      "</tr>\n";
2744        }
2745        print "</table>\n";
2746}
2747
2748## ======================================================================
2749## ======================================================================
2750## actions
2751
2752sub git_project_list {
2753        my $order = $cgi->param('o');
2754        if (defined $order && $order !~ m/project|descr|owner|age/) {
2755                die_error(undef, "Unknown order parameter");
2756        }
2757
2758        my @list = git_get_projects_list();
2759        if (!@list) {
2760                die_error(undef, "No projects found");
2761        }
2762
2763        git_header_html();
2764        if (-f $home_text) {
2765                print "<div class=\"index_include\">\n";
2766                open (my $fd, $home_text);
2767                print <$fd>;
2768                close $fd;
2769                print "</div>\n";
2770        }
2771        git_project_list_body(\@list, $order);
2772        git_footer_html();
2773}
2774
2775sub git_forks {
2776        my $order = $cgi->param('o');
2777        if (defined $order && $order !~ m/project|descr|owner|age/) {
2778                die_error(undef, "Unknown order parameter");
2779        }
2780
2781        my @list = git_get_projects_list($project);
2782        if (!@list) {
2783                die_error(undef, "No forks found");
2784        }
2785
2786        git_header_html();
2787        git_print_page_nav('','');
2788        git_print_header_div('summary', "$project forks");
2789        git_project_list_body(\@list, $order);
2790        git_footer_html();
2791}
2792
2793sub git_project_index {
2794        my @projects = git_get_projects_list($project);
2795
2796        print $cgi->header(
2797                -type => 'text/plain',
2798                -charset => 'utf-8',
2799                -content_disposition => 'inline; filename="index.aux"');
2800
2801        foreach my $pr (@projects) {
2802                if (!exists $pr->{'owner'}) {
2803                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2804                }
2805
2806                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2807                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2808                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2809                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2810                $path  =~ s/ /\+/g;
2811                $owner =~ s/ /\+/g;
2812
2813                print "$path $owner\n";
2814        }
2815}
2816
2817sub git_summary {
2818        my $descr = git_get_project_description($project) || "none";
2819        my $head = git_get_head_hash($project);
2820        my %co = parse_commit($head);
2821        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2822
2823        my $owner = git_get_project_owner($project);
2824
2825        my $refs = git_get_references();
2826        my @taglist  = git_get_tags_list(15);
2827        my @headlist = git_get_heads_list(15);
2828        my @forklist;
2829        my ($check_forks) = gitweb_check_feature('forks');
2830
2831        if ($check_forks) {
2832                @forklist = git_get_projects_list($project);
2833        }
2834
2835        git_header_html();
2836        git_print_page_nav('summary','', $head);
2837
2838        print "<div class=\"title\">&nbsp;</div>\n";
2839        print "<table cellspacing=\"0\">\n" .
2840              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2841              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2842              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2843        # use per project git URL list in $projectroot/$project/cloneurl
2844        # or make project git URL from git base URL and project name
2845        my $url_tag = "URL";
2846        my @url_list = git_get_project_url_list($project);
2847        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2848        foreach my $git_url (@url_list) {
2849                next unless $git_url;
2850                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2851                $url_tag = "";
2852        }
2853        print "</table>\n";
2854
2855        if (-s "$projectroot/$project/README.html") {
2856                if (open my $fd, "$projectroot/$project/README.html") {
2857                        print "<div class=\"title\">readme</div>\n";
2858                        print $_ while (<$fd>);
2859                        close $fd;
2860                }
2861        }
2862
2863        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2864                git_get_head_hash($project), "--"
2865                or die_error(undef, "Open git-rev-list failed");
2866        my @revlist = map { chomp; $_ } <$fd>;
2867        close $fd;
2868        git_print_header_div('shortlog');
2869        git_shortlog_body(\@revlist, 0, 15, $refs,
2870                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2871
2872        if (@taglist) {
2873                git_print_header_div('tags');
2874                git_tags_body(\@taglist, 0, 15,
2875                              $cgi->a({-href => href(action=>"tags")}, "..."));
2876        }
2877
2878        if (@headlist) {
2879                git_print_header_div('heads');
2880                git_heads_body(\@headlist, $head, 0, 15,
2881                               $cgi->a({-href => href(action=>"heads")}, "..."));
2882        }
2883
2884        if (@forklist) {
2885                git_print_header_div('forks');
2886                git_project_list_body(\@forklist, undef, 0, 15,
2887                                      $cgi->a({-href => href(action=>"forks")}, "..."),
2888                                      'noheader');
2889        }
2890
2891        git_footer_html();
2892}
2893
2894sub git_tag {
2895        my $head = git_get_head_hash($project);
2896        git_header_html();
2897        git_print_page_nav('','', $head,undef,$head);
2898        my %tag = parse_tag($hash);
2899        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2900        print "<div class=\"title_text\">\n" .
2901              "<table cellspacing=\"0\">\n" .
2902              "<tr>\n" .
2903              "<td>object</td>\n" .
2904              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2905                               $tag{'object'}) . "</td>\n" .
2906              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2907                                              $tag{'type'}) . "</td>\n" .
2908              "</tr>\n";
2909        if (defined($tag{'author'})) {
2910                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2911                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2912                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2913                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2914                        "</td></tr>\n";
2915        }
2916        print "</table>\n\n" .
2917              "</div>\n";
2918        print "<div class=\"page_body\">";
2919        my $comment = $tag{'comment'};
2920        foreach my $line (@$comment) {
2921                chomp $line;
2922                print esc_html($line, -nbsp=>1) . "<br/>\n";
2923        }
2924        print "</div>\n";
2925        git_footer_html();
2926}
2927
2928sub git_blame2 {
2929        my $fd;
2930        my $ftype;
2931
2932        my ($have_blame) = gitweb_check_feature('blame');
2933        if (!$have_blame) {
2934                die_error('403 Permission denied', "Permission denied");
2935        }
2936        die_error('404 Not Found', "File name not defined") if (!$file_name);
2937        $hash_base ||= git_get_head_hash($project);
2938        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2939        my %co = parse_commit($hash_base)
2940                or die_error(undef, "Reading commit failed");
2941        if (!defined $hash) {
2942                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2943                        or die_error(undef, "Error looking up file");
2944        }
2945        $ftype = git_get_type($hash);
2946        if ($ftype !~ "blob") {
2947                die_error("400 Bad Request", "Object is not a blob");
2948        }
2949        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
2950              $file_name, $hash_base)
2951                or die_error(undef, "Open git-blame failed");
2952        git_header_html();
2953        my $formats_nav =
2954                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2955                        "blob") .
2956                " | " .
2957                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2958                        "history") .
2959                " | " .
2960                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2961                        "HEAD");
2962        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2963        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2964        git_print_page_path($file_name, $ftype, $hash_base);
2965        my @rev_color = (qw(light2 dark2));
2966        my $num_colors = scalar(@rev_color);
2967        my $current_color = 0;
2968        my $last_rev;
2969        print <<HTML;
2970<div class="page_body">
2971<table class="blame">
2972<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2973HTML
2974        my %metainfo = ();
2975        while (1) {
2976                $_ = <$fd>;
2977                last unless defined $_;
2978                my ($full_rev, $orig_lineno, $lineno, $group_size) =
2979                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
2980                if (!exists $metainfo{$full_rev}) {
2981                        $metainfo{$full_rev} = {};
2982                }
2983                my $meta = $metainfo{$full_rev};
2984                while (<$fd>) {
2985                        last if (s/^\t//);
2986                        if (/^(\S+) (.*)$/) {
2987                                $meta->{$1} = $2;
2988                        }
2989                }
2990                my $data = $_;
2991                chomp $data;
2992                my $rev = substr($full_rev, 0, 8);
2993                my $author = $meta->{'author'};
2994                my %date = parse_date($meta->{'author-time'},
2995                                      $meta->{'author-tz'});
2996                my $date = $date{'iso-tz'};
2997                if ($group_size) {
2998                        $current_color = ++$current_color % $num_colors;
2999                }
3000                print "<tr class=\"$rev_color[$current_color]\">\n";
3001                if ($group_size) {
3002                        print "<td class=\"sha1\"";
3003                        print " title=\"". esc_html($author) . ", $date\"";
3004                        print " rowspan=\"$group_size\"" if ($group_size > 1);
3005                        print ">";
3006                        print $cgi->a({-href => href(action=>"commit",
3007                                                     hash=>$full_rev,
3008                                                     file_name=>$file_name)},
3009                                      esc_html($rev));
3010                        print "</td>\n";
3011                }
3012                my $blamed = href(action => 'blame',
3013                                  file_name => $meta->{'filename'},
3014                                  hash_base => $full_rev);
3015                print "<td class=\"linenr\">";
3016                print $cgi->a({ -href => "$blamed#l$orig_lineno",
3017                                -id => "l$lineno",
3018                                -class => "linenr" },
3019                              esc_html($lineno));
3020                print "</td>";
3021                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
3022                print "</tr>\n";
3023        }
3024        print "</table>\n";
3025        print "</div>";
3026        close $fd
3027                or print "Reading blob failed\n";
3028        git_footer_html();
3029}
3030
3031sub git_blame {
3032        my $fd;
3033
3034        my ($have_blame) = gitweb_check_feature('blame');
3035        if (!$have_blame) {
3036                die_error('403 Permission denied', "Permission denied");
3037        }
3038        die_error('404 Not Found', "File name not defined") if (!$file_name);
3039        $hash_base ||= git_get_head_hash($project);
3040        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3041        my %co = parse_commit($hash_base)
3042                or die_error(undef, "Reading commit failed");
3043        if (!defined $hash) {
3044                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3045                        or die_error(undef, "Error lookup file");
3046        }
3047        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
3048                or die_error(undef, "Open git-annotate failed");
3049        git_header_html();
3050        my $formats_nav =
3051                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3052                        "blob") .
3053                " | " .
3054                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3055                        "history") .
3056                " | " .
3057                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3058                        "HEAD");
3059        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3060        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3061        git_print_page_path($file_name, 'blob', $hash_base);
3062        print "<div class=\"page_body\">\n";
3063        print <<HTML;
3064<table class="blame">
3065  <tr>
3066    <th>Commit</th>
3067    <th>Age</th>
3068    <th>Author</th>
3069    <th>Line</th>
3070    <th>Data</th>
3071  </tr>
3072HTML
3073        my @line_class = (qw(light dark));
3074        my $line_class_len = scalar (@line_class);
3075        my $line_class_num = $#line_class;
3076        while (my $line = <$fd>) {
3077                my $long_rev;
3078                my $short_rev;
3079                my $author;
3080                my $time;
3081                my $lineno;
3082                my $data;
3083                my $age;
3084                my $age_str;
3085                my $age_class;
3086
3087                chomp $line;
3088                $line_class_num = ($line_class_num + 1) % $line_class_len;
3089
3090                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
3091                        $long_rev = $1;
3092                        $author   = $2;
3093                        $time     = $3;
3094                        $lineno   = $4;
3095                        $data     = $5;
3096                } else {
3097                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
3098                        next;
3099                }
3100                $short_rev  = substr ($long_rev, 0, 8);
3101                $age        = time () - $time;
3102                $age_str    = age_string ($age);
3103                $age_str    =~ s/ /&nbsp;/g;
3104                $age_class  = age_class($age);
3105                $author     = esc_html ($author);
3106                $author     =~ s/ /&nbsp;/g;
3107
3108                $data = untabify($data);
3109                $data = esc_html ($data);
3110
3111                print <<HTML;
3112  <tr class="$line_class[$line_class_num]">
3113    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
3114    <td class="$age_class">$age_str</td>
3115    <td>$author</td>
3116    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
3117    <td class="pre">$data</td>
3118  </tr>
3119HTML
3120        } # while (my $line = <$fd>)
3121        print "</table>\n\n";
3122        close $fd
3123                or print "Reading blob failed.\n";
3124        print "</div>";
3125        git_footer_html();
3126}
3127
3128sub git_tags {
3129        my $head = git_get_head_hash($project);
3130        git_header_html();
3131        git_print_page_nav('','', $head,undef,$head);
3132        git_print_header_div('summary', $project);
3133
3134        my @tagslist = git_get_tags_list();
3135        if (@tagslist) {
3136                git_tags_body(\@tagslist);
3137        }
3138        git_footer_html();
3139}
3140
3141sub git_heads {
3142        my $head = git_get_head_hash($project);
3143        git_header_html();
3144        git_print_page_nav('','', $head,undef,$head);
3145        git_print_header_div('summary', $project);
3146
3147        my @headslist = git_get_heads_list();
3148        if (@headslist) {
3149                git_heads_body(\@headslist, $head);
3150        }
3151        git_footer_html();
3152}
3153
3154sub git_blob_plain {
3155        my $expires;
3156
3157        if (!defined $hash) {
3158                if (defined $file_name) {
3159                        my $base = $hash_base || git_get_head_hash($project);
3160                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3161                                or die_error(undef, "Error lookup file");
3162                } else {
3163                        die_error(undef, "No file name defined");
3164                }
3165        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3166                # blobs defined by non-textual hash id's can be cached
3167                $expires = "+1d";
3168        }
3169
3170        my $type = shift;
3171        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3172                or die_error(undef, "Couldn't cat $file_name, $hash");
3173
3174        $type ||= blob_mimetype($fd, $file_name);
3175
3176        # save as filename, even when no $file_name is given
3177        my $save_as = "$hash";
3178        if (defined $file_name) {
3179                $save_as = $file_name;
3180        } elsif ($type =~ m/^text\//) {
3181                $save_as .= '.txt';
3182        }
3183
3184        print $cgi->header(
3185                -type => "$type",
3186                -expires=>$expires,
3187                -content_disposition => 'inline; filename="' . "$save_as" . '"');
3188        undef $/;
3189        binmode STDOUT, ':raw';
3190        print <$fd>;
3191        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3192        $/ = "\n";
3193        close $fd;
3194}
3195
3196sub git_blob {
3197        my $expires;
3198
3199        if (!defined $hash) {
3200                if (defined $file_name) {
3201                        my $base = $hash_base || git_get_head_hash($project);
3202                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3203                                or die_error(undef, "Error lookup file");
3204                } else {
3205                        die_error(undef, "No file name defined");
3206                }
3207        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3208                # blobs defined by non-textual hash id's can be cached
3209                $expires = "+1d";
3210        }
3211
3212        my ($have_blame) = gitweb_check_feature('blame');
3213        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3214                or die_error(undef, "Couldn't cat $file_name, $hash");
3215        my $mimetype = blob_mimetype($fd, $file_name);
3216        if ($mimetype !~ m/^text\//) {
3217                close $fd;
3218                return git_blob_plain($mimetype);
3219        }
3220        git_header_html(undef, $expires);
3221        my $formats_nav = '';
3222        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3223                if (defined $file_name) {
3224                        if ($have_blame) {
3225                                $formats_nav .=
3226                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3227                                                               hash=>$hash, file_name=>$file_name)},
3228                                                "blame") .
3229                                        " | ";
3230                        }
3231                        $formats_nav .=
3232                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3233                                                       hash=>$hash, file_name=>$file_name)},
3234                                        "history") .
3235                                " | " .
3236                                $cgi->a({-href => href(action=>"blob_plain",
3237                                                       hash=>$hash, file_name=>$file_name)},
3238                                        "raw") .
3239                                " | " .
3240                                $cgi->a({-href => href(action=>"blob",
3241                                                       hash_base=>"HEAD", file_name=>$file_name)},
3242                                        "HEAD");
3243                } else {
3244                        $formats_nav .=
3245                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3246                }
3247                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3248                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3249        } else {
3250                print "<div class=\"page_nav\">\n" .
3251                      "<br/><br/></div>\n" .
3252                      "<div class=\"title\">$hash</div>\n";
3253        }
3254        git_print_page_path($file_name, "blob", $hash_base);
3255        print "<div class=\"page_body\">\n";
3256        my $nr;
3257        while (my $line = <$fd>) {
3258                chomp $line;
3259                $nr++;
3260                $line = untabify($line);
3261                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3262                       $nr, $nr, $nr, esc_html($line, -nbsp=>1);
3263        }
3264        close $fd
3265                or print "Reading blob failed.\n";
3266        print "</div>";
3267        git_footer_html();
3268}
3269
3270sub git_tree {
3271        my $have_snapshot = gitweb_have_snapshot();
3272
3273        if (!defined $hash_base) {
3274                $hash_base = "HEAD";
3275        }
3276        if (!defined $hash) {
3277                if (defined $file_name) {
3278                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3279                } else {
3280                        $hash = $hash_base;
3281                }
3282        }
3283        $/ = "\0";
3284        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3285                or die_error(undef, "Open git-ls-tree failed");
3286        my @entries = map { chomp; $_ } <$fd>;
3287        close $fd or die_error(undef, "Reading tree failed");
3288        $/ = "\n";
3289
3290        my $refs = git_get_references();
3291        my $ref = format_ref_marker($refs, $hash_base);
3292        git_header_html();
3293        my $basedir = '';
3294        my ($have_blame) = gitweb_check_feature('blame');
3295        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3296                my @views_nav = ();
3297                if (defined $file_name) {
3298                        push @views_nav,
3299                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3300                                                       hash=>$hash, file_name=>$file_name)},
3301                                        "history"),
3302                                $cgi->a({-href => href(action=>"tree",
3303                                                       hash_base=>"HEAD", file_name=>$file_name)},
3304                                        "HEAD"),
3305                }
3306                if ($have_snapshot) {
3307                        # FIXME: Should be available when we have no hash base as well.
3308                        push @views_nav,
3309                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3310                                        "snapshot");
3311                }
3312                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3313                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3314        } else {
3315                undef $hash_base;
3316                print "<div class=\"page_nav\">\n";
3317                print "<br/><br/></div>\n";
3318                print "<div class=\"title\">$hash</div>\n";
3319        }
3320        if (defined $file_name) {
3321                $basedir = $file_name;
3322                if ($basedir ne '' && substr($basedir, -1) ne '/') {
3323                        $basedir .= '/';
3324                }
3325        }
3326        git_print_page_path($file_name, 'tree', $hash_base);
3327        print "<div class=\"page_body\">\n";
3328        print "<table cellspacing=\"0\">\n";
3329        my $alternate = 1;
3330        # '..' (top directory) link if possible
3331        if (defined $hash_base &&
3332            defined $file_name && $file_name =~ m![^/]+$!) {
3333                if ($alternate) {
3334                        print "<tr class=\"dark\">\n";
3335                } else {
3336                        print "<tr class=\"light\">\n";
3337                }
3338                $alternate ^= 1;
3339
3340                my $up = $file_name;
3341                $up =~ s!/?[^/]+$!!;
3342                undef $up unless $up;
3343                # based on git_print_tree_entry
3344                print '<td class="mode">' . mode_str('040000') . "</td>\n";
3345                print '<td class="list">';
3346                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3347                                             file_name=>$up)},
3348                              "..");
3349                print "</td>\n";
3350                print "<td class=\"link\"></td>\n";
3351
3352                print "</tr>\n";
3353        }
3354        foreach my $line (@entries) {
3355                my %t = parse_ls_tree_line($line, -z => 1);
3356
3357                if ($alternate) {
3358                        print "<tr class=\"dark\">\n";
3359                } else {
3360                        print "<tr class=\"light\">\n";
3361                }
3362                $alternate ^= 1;
3363
3364                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3365
3366                print "</tr>\n";
3367        }
3368        print "</table>\n" .
3369              "</div>";
3370        git_footer_html();
3371}
3372
3373sub git_snapshot {
3374        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3375        my $have_snapshot = (defined $ctype && defined $suffix);
3376        if (!$have_snapshot) {
3377                die_error('403 Permission denied', "Permission denied");
3378        }
3379
3380        if (!defined $hash) {
3381                $hash = git_get_head_hash($project);
3382        }
3383
3384        my $filename = basename($project) . "-$hash.tar.$suffix";
3385
3386        print $cgi->header(
3387                -type => 'application/x-tar',
3388                -content_encoding => $ctype,
3389                -content_disposition => 'inline; filename="' . "$filename" . '"',
3390                -status => '200 OK');
3391
3392        my $git = git_cmd_str();
3393        my $name = $project;
3394        $name =~ s/\047/\047\\\047\047/g;
3395        open my $fd, "-|",
3396        "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3397                or die_error(undef, "Execute git-tar-tree failed.");
3398        binmode STDOUT, ':raw';
3399        print <$fd>;
3400        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3401        close $fd;
3402
3403}
3404
3405sub git_log {
3406        my $head = git_get_head_hash($project);
3407        if (!defined $hash) {
3408                $hash = $head;
3409        }
3410        if (!defined $page) {
3411                $page = 0;
3412        }
3413        my $refs = git_get_references();
3414
3415        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3416        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
3417                or die_error(undef, "Open git-rev-list failed");
3418        my @revlist = map { chomp; $_ } <$fd>;
3419        close $fd;
3420
3421        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3422
3423        git_header_html();
3424        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3425
3426        if (!@revlist) {
3427                my %co = parse_commit($hash);
3428
3429                git_print_header_div('summary', $project);
3430                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3431        }
3432        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3433                my $commit = $revlist[$i];
3434                my $ref = format_ref_marker($refs, $commit);
3435                my %co = parse_commit($commit);
3436                next if !%co;
3437                my %ad = parse_date($co{'author_epoch'});
3438                git_print_header_div('commit',
3439                               "<span class=\"age\">$co{'age_string'}</span>" .
3440                               esc_html($co{'title'}) . $ref,
3441                               $commit);
3442                print "<div class=\"title_text\">\n" .
3443                      "<div class=\"log_link\">\n" .
3444                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3445                      " | " .
3446                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3447                      " | " .
3448                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3449                      "<br/>\n" .
3450                      "</div>\n" .
3451                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3452                      "</div>\n";
3453
3454                print "<div class=\"log_body\">\n";
3455                git_print_log($co{'comment'}, -final_empty_line=> 1);
3456                print "</div>\n";
3457        }
3458        git_footer_html();
3459}
3460
3461sub git_commit {
3462        $hash ||= $hash_base || "HEAD";
3463        my %co = parse_commit($hash);
3464        if (!%co) {
3465                die_error(undef, "Unknown commit object");
3466        }
3467        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3468        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3469
3470        my $parent = $co{'parent'};
3471        if (!defined $parent) {
3472                $parent = "--root";
3473        }
3474        open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
3475                @diff_opts, $parent, $hash, "--"
3476                or die_error(undef, "Open git-diff-tree failed");
3477        my @difftree = map { chomp; $_ } <$fd>;
3478        close $fd or die_error(undef, "Reading git-diff-tree failed");
3479
3480        # non-textual hash id's can be cached
3481        my $expires;
3482        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3483                $expires = "+1d";
3484        }
3485        my $refs = git_get_references();
3486        my $ref = format_ref_marker($refs, $co{'id'});
3487
3488        my $have_snapshot = gitweb_have_snapshot();
3489
3490        my @views_nav = ();
3491        if (defined $file_name && defined $co{'parent'}) {
3492                push @views_nav,
3493                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3494                                "blame");
3495        }
3496        git_header_html(undef, $expires);
3497        git_print_page_nav('commit', '',
3498                           $hash, $co{'tree'}, $hash,
3499                           join (' | ', @views_nav));
3500
3501        if (defined $co{'parent'}) {
3502                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3503        } else {
3504                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3505        }
3506        print "<div class=\"title_text\">\n" .
3507              "<table cellspacing=\"0\">\n";
3508        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3509              "<tr>" .
3510              "<td></td><td> $ad{'rfc2822'}";
3511        if ($ad{'hour_local'} < 6) {
3512                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3513                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3514        } else {
3515                printf(" (%02d:%02d %s)",
3516                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3517        }
3518        print "</td>" .
3519              "</tr>\n";
3520        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3521        print "<tr><td></td><td> $cd{'rfc2822'}" .
3522              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3523              "</td></tr>\n";
3524        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3525        print "<tr>" .
3526              "<td>tree</td>" .
3527              "<td class=\"sha1\">" .
3528              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3529                       class => "list"}, $co{'tree'}) .
3530              "</td>" .
3531              "<td class=\"link\">" .
3532              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3533                      "tree");
3534        if ($have_snapshot) {
3535                print " | " .
3536                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3537        }
3538        print "</td>" .
3539              "</tr>\n";
3540        my $parents = $co{'parents'};
3541        foreach my $par (@$parents) {
3542                print "<tr>" .
3543                      "<td>parent</td>" .
3544                      "<td class=\"sha1\">" .
3545                      $cgi->a({-href => href(action=>"commit", hash=>$par),
3546                               class => "list"}, $par) .
3547                      "</td>" .
3548                      "<td class=\"link\">" .
3549                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3550                      " | " .
3551                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3552                      "</td>" .
3553                      "</tr>\n";
3554        }
3555        print "</table>".
3556              "</div>\n";
3557
3558        print "<div class=\"page_body\">\n";
3559        git_print_log($co{'comment'});
3560        print "</div>\n";
3561
3562        git_difftree_body(\@difftree, $hash, $parent);
3563
3564        git_footer_html();
3565}
3566
3567sub git_blobdiff {
3568        my $format = shift || 'html';
3569
3570        my $fd;
3571        my @difftree;
3572        my %diffinfo;
3573        my $expires;
3574
3575        # preparing $fd and %diffinfo for git_patchset_body
3576        # new style URI
3577        if (defined $hash_base && defined $hash_parent_base) {
3578                if (defined $file_name) {
3579                        # read raw output
3580                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3581                                $hash_parent_base, $hash_base,
3582                                "--", $file_name
3583                                or die_error(undef, "Open git-diff-tree failed");
3584                        @difftree = map { chomp; $_ } <$fd>;
3585                        close $fd
3586                                or die_error(undef, "Reading git-diff-tree failed");
3587                        @difftree
3588                                or die_error('404 Not Found', "Blob diff not found");
3589
3590                } elsif (defined $hash &&
3591                         $hash =~ /[0-9a-fA-F]{40}/) {
3592                        # try to find filename from $hash
3593
3594                        # read filtered raw output
3595                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3596                                $hash_parent_base, $hash_base, "--"
3597                                or die_error(undef, "Open git-diff-tree failed");
3598                        @difftree =
3599                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3600                                # $hash == to_id
3601                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3602                                map { chomp; $_ } <$fd>;
3603                        close $fd
3604                                or die_error(undef, "Reading git-diff-tree failed");
3605                        @difftree
3606                                or die_error('404 Not Found', "Blob diff not found");
3607
3608                } else {
3609                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3610                }
3611
3612                if (@difftree > 1) {
3613                        die_error('404 Not Found', "Ambiguous blob diff specification");
3614                }
3615
3616                %diffinfo = parse_difftree_raw_line($difftree[0]);
3617                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3618                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3619
3620                $hash_parent ||= $diffinfo{'from_id'};
3621                $hash        ||= $diffinfo{'to_id'};
3622
3623                # non-textual hash id's can be cached
3624                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3625                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3626                        $expires = '+1d';
3627                }
3628
3629                # open patch output
3630                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3631                        '-p', $hash_parent_base, $hash_base,
3632                        "--", $file_name
3633                        or die_error(undef, "Open git-diff-tree failed");
3634        }
3635
3636        # old/legacy style URI
3637        if (!%diffinfo && # if new style URI failed
3638            defined $hash && defined $hash_parent) {
3639                # fake git-diff-tree raw output
3640                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3641                $diffinfo{'from_id'} = $hash_parent;
3642                $diffinfo{'to_id'}   = $hash;
3643                if (defined $file_name) {
3644                        if (defined $file_parent) {
3645                                $diffinfo{'status'} = '2';
3646                                $diffinfo{'from_file'} = $file_parent;
3647                                $diffinfo{'to_file'}   = $file_name;
3648                        } else { # assume not renamed
3649                                $diffinfo{'status'} = '1';
3650                                $diffinfo{'from_file'} = $file_name;
3651                                $diffinfo{'to_file'}   = $file_name;
3652                        }
3653                } else { # no filename given
3654                        $diffinfo{'status'} = '2';
3655                        $diffinfo{'from_file'} = $hash_parent;
3656                        $diffinfo{'to_file'}   = $hash;
3657                }
3658
3659                # non-textual hash id's can be cached
3660                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3661                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3662                        $expires = '+1d';
3663                }
3664
3665                # open patch output
3666                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts,
3667                        $hash_parent, $hash, "--"
3668                        or die_error(undef, "Open git-diff failed");
3669        } else  {
3670                die_error('404 Not Found', "Missing one of the blob diff parameters")
3671                        unless %diffinfo;
3672        }
3673
3674        # header
3675        if ($format eq 'html') {
3676                my $formats_nav =
3677                        $cgi->a({-href => href(action=>"blobdiff_plain",
3678                                               hash=>$hash, hash_parent=>$hash_parent,
3679                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3680                                               file_name=>$file_name, file_parent=>$file_parent)},
3681                                "raw");
3682                git_header_html(undef, $expires);
3683                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3684                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3685                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3686                } else {
3687                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3688                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3689                }
3690                if (defined $file_name) {
3691                        git_print_page_path($file_name, "blob", $hash_base);
3692                } else {
3693                        print "<div class=\"page_path\"></div>\n";
3694                }
3695
3696        } elsif ($format eq 'plain') {
3697                print $cgi->header(
3698                        -type => 'text/plain',
3699                        -charset => 'utf-8',
3700                        -expires => $expires,
3701                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3702
3703                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3704
3705        } else {
3706                die_error(undef, "Unknown blobdiff format");
3707        }
3708
3709        # patch
3710        if ($format eq 'html') {
3711                print "<div class=\"page_body\">\n";
3712
3713                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3714                close $fd;
3715
3716                print "</div>\n"; # class="page_body"
3717                git_footer_html();
3718
3719        } else {
3720                while (my $line = <$fd>) {
3721                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
3722                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
3723
3724                        print $line;
3725
3726                        last if $line =~ m!^\+\+\+!;
3727                }
3728                local $/ = undef;
3729                print <$fd>;
3730                close $fd;
3731        }
3732}
3733
3734sub git_blobdiff_plain {
3735        git_blobdiff('plain');
3736}
3737
3738sub git_commitdiff {
3739        my $format = shift || 'html';
3740        $hash ||= $hash_base || "HEAD";
3741        my %co = parse_commit($hash);
3742        if (!%co) {
3743                die_error(undef, "Unknown commit object");
3744        }
3745
3746        # we need to prepare $formats_nav before any parameter munging
3747        my $formats_nav;
3748        if ($format eq 'html') {
3749                $formats_nav =
3750                        $cgi->a({-href => href(action=>"commitdiff_plain",
3751                                               hash=>$hash, hash_parent=>$hash_parent)},
3752                                "raw");
3753
3754                if (defined $hash_parent) {
3755                        # commitdiff with two commits given
3756                        my $hash_parent_short = $hash_parent;
3757                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3758                                $hash_parent_short = substr($hash_parent, 0, 7);
3759                        }
3760                        $formats_nav .=
3761                                ' (from: ' .
3762                                $cgi->a({-href => href(action=>"commitdiff",
3763                                                       hash=>$hash_parent)},
3764                                        esc_html($hash_parent_short)) .
3765                                ')';
3766                } elsif (!$co{'parent'}) {
3767                        # --root commitdiff
3768                        $formats_nav .= ' (initial)';
3769                } elsif (scalar @{$co{'parents'}} == 1) {
3770                        # single parent commit
3771                        $formats_nav .=
3772                                ' (parent: ' .
3773                                $cgi->a({-href => href(action=>"commitdiff",
3774                                                       hash=>$co{'parent'})},
3775                                        esc_html(substr($co{'parent'}, 0, 7))) .
3776                                ')';
3777                } else {
3778                        # merge commit
3779                        $formats_nav .=
3780                                ' (merge: ' .
3781                                join(' ', map {
3782                                        $cgi->a({-href => href(action=>"commitdiff",
3783                                                               hash=>$_)},
3784                                                esc_html(substr($_, 0, 7)));
3785                                } @{$co{'parents'}} ) .
3786                                ')';
3787                }
3788        }
3789
3790        if (!defined $hash_parent) {
3791                $hash_parent = $co{'parent'} || '--root';
3792        }
3793
3794        # read commitdiff
3795        my $fd;
3796        my @difftree;
3797        if ($format eq 'html') {
3798                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3799                        "--no-commit-id", "--patch-with-raw", "--full-index",
3800                        $hash_parent, $hash, "--"
3801                        or die_error(undef, "Open git-diff-tree failed");
3802
3803                while (my $line = <$fd>) {
3804                        chomp $line;
3805                        # empty line ends raw part of diff-tree output
3806                        last unless $line;
3807                        push @difftree, $line;
3808                }
3809
3810        } elsif ($format eq 'plain') {
3811                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3812                        '-p', $hash_parent, $hash, "--"
3813                        or die_error(undef, "Open git-diff-tree failed");
3814
3815        } else {
3816                die_error(undef, "Unknown commitdiff format");
3817        }
3818
3819        # non-textual hash id's can be cached
3820        my $expires;
3821        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3822                $expires = "+1d";
3823        }
3824
3825        # write commit message
3826        if ($format eq 'html') {
3827                my $refs = git_get_references();
3828                my $ref = format_ref_marker($refs, $co{'id'});
3829
3830                git_header_html(undef, $expires);
3831                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3832                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3833                git_print_authorship(\%co);
3834                print "<div class=\"page_body\">\n";
3835                if (@{$co{'comment'}} > 1) {
3836                        print "<div class=\"log\">\n";
3837                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
3838                        print "</div>\n"; # class="log"
3839                }
3840
3841        } elsif ($format eq 'plain') {
3842                my $refs = git_get_references("tags");
3843                my $tagname = git_get_rev_name_tags($hash);
3844                my $filename = basename($project) . "-$hash.patch";
3845
3846                print $cgi->header(
3847                        -type => 'text/plain',
3848                        -charset => 'utf-8',
3849                        -expires => $expires,
3850                        -content_disposition => 'inline; filename="' . "$filename" . '"');
3851                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3852                print <<TEXT;
3853From: $co{'author'}
3854Date: $ad{'rfc2822'} ($ad{'tz_local'})
3855Subject: $co{'title'}
3856TEXT
3857                print "X-Git-Tag: $tagname\n" if $tagname;
3858                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3859
3860                foreach my $line (@{$co{'comment'}}) {
3861                        print "$line\n";
3862                }
3863                print "---\n\n";
3864        }
3865
3866        # write patch
3867        if ($format eq 'html') {
3868                git_difftree_body(\@difftree, $hash, $hash_parent);
3869                print "<br/>\n";
3870
3871                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3872                close $fd;
3873                print "</div>\n"; # class="page_body"
3874                git_footer_html();
3875
3876        } elsif ($format eq 'plain') {
3877                local $/ = undef;
3878                print <$fd>;
3879                close $fd
3880                        or print "Reading git-diff-tree failed\n";
3881        }
3882}
3883
3884sub git_commitdiff_plain {
3885        git_commitdiff('plain');
3886}
3887
3888sub git_history {
3889        if (!defined $hash_base) {
3890                $hash_base = git_get_head_hash($project);
3891        }
3892        if (!defined $page) {
3893                $page = 0;
3894        }
3895        my $ftype;
3896        my %co = parse_commit($hash_base);
3897        if (!%co) {
3898                die_error(undef, "Unknown commit object");
3899        }
3900
3901        my $refs = git_get_references();
3902        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3903
3904        if (!defined $hash && defined $file_name) {
3905                $hash = git_get_hash_by_path($hash_base, $file_name);
3906        }
3907        if (defined $hash) {
3908                $ftype = git_get_type($hash);
3909        }
3910
3911        open my $fd, "-|",
3912                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3913                        or die_error(undef, "Open git-rev-list-failed");
3914        my @revlist = map { chomp; $_ } <$fd>;
3915        close $fd
3916                or die_error(undef, "Reading git-rev-list failed");
3917
3918        my $paging_nav = '';
3919        if ($page > 0) {
3920                $paging_nav .=
3921                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3922                                               file_name=>$file_name)},
3923                                "first");
3924                $paging_nav .= " &sdot; " .
3925                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3926                                               file_name=>$file_name, page=>$page-1),
3927                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3928        } else {
3929                $paging_nav .= "first";
3930                $paging_nav .= " &sdot; prev";
3931        }
3932        if ($#revlist >= (100 * ($page+1)-1)) {
3933                $paging_nav .= " &sdot; " .
3934                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3935                                               file_name=>$file_name, page=>$page+1),
3936                                 -accesskey => "n", -title => "Alt-n"}, "next");
3937        } else {
3938                $paging_nav .= " &sdot; next";
3939        }
3940        my $next_link = '';
3941        if ($#revlist >= (100 * ($page+1)-1)) {
3942                $next_link =
3943                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3944                                               file_name=>$file_name, page=>$page+1),
3945                                 -title => "Alt-n"}, "next");
3946        }
3947
3948        git_header_html();
3949        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3950        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3951        git_print_page_path($file_name, $ftype, $hash_base);
3952
3953        git_history_body(\@revlist, ($page * 100), $#revlist,
3954                         $refs, $hash_base, $ftype, $next_link);
3955
3956        git_footer_html();
3957}
3958
3959sub git_search {
3960        if (!defined $searchtext) {
3961                die_error(undef, "Text field empty");
3962        }
3963        if (!defined $hash) {
3964                $hash = git_get_head_hash($project);
3965        }
3966        my %co = parse_commit($hash);
3967        if (!%co) {
3968                die_error(undef, "Unknown commit object");
3969        }
3970
3971        $searchtype ||= 'commit';
3972        if ($searchtype eq 'pickaxe') {
3973                # pickaxe may take all resources of your box and run for several minutes
3974                # with every query - so decide by yourself how public you make this feature
3975                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3976                if (!$have_pickaxe) {
3977                        die_error('403 Permission denied', "Permission denied");
3978                }
3979        }
3980
3981        git_header_html();
3982        git_print_page_nav('','', $hash,$co{'tree'},$hash);
3983        git_print_header_div('commit', esc_html($co{'title'}), $hash);
3984
3985        print "<table cellspacing=\"0\">\n";
3986        my $alternate = 1;
3987        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
3988                $/ = "\0";
3989                open my $fd, "-|", git_cmd(), "rev-list",
3990                        "--header", "--parents", $hash, "--"
3991                        or next;
3992                while (my $commit_text = <$fd>) {
3993                        if (!grep m/$searchtext/i, $commit_text) {
3994                                next;
3995                        }
3996                        if ($searchtype eq 'author' && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3997                                next;
3998                        }
3999                        if ($searchtype eq 'committer' && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
4000                                next;
4001                        }
4002                        my @commit_lines = split "\n", $commit_text;
4003                        my %co = parse_commit(undef, \@commit_lines);
4004                        if (!%co) {
4005                                next;
4006                        }
4007                        if ($alternate) {
4008                                print "<tr class=\"dark\">\n";
4009                        } else {
4010                                print "<tr class=\"light\">\n";
4011                        }
4012                        $alternate ^= 1;
4013                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4014                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4015                              "<td>" .
4016                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
4017                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4018                        my $comment = $co{'comment'};
4019                        foreach my $line (@$comment) {
4020                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
4021                                        my $lead = esc_html($1) || "";
4022                                        $lead = chop_str($lead, 30, 10);
4023                                        my $match = esc_html($2) || "";
4024                                        my $trail = esc_html($3) || "";
4025                                        $trail = chop_str($trail, 30, 10);
4026                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
4027                                        print chop_str($text, 80, 5) . "<br/>\n";
4028                                }
4029                        }
4030                        print "</td>\n" .
4031                              "<td class=\"link\">" .
4032                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4033                              " | " .
4034                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4035                        print "</td>\n" .
4036                              "</tr>\n";
4037                }
4038                close $fd;
4039        }
4040
4041        if ($searchtype eq 'pickaxe') {
4042                $/ = "\n";
4043                my $git_command = git_cmd_str();
4044                open my $fd, "-|", "$git_command rev-list $hash | " .
4045                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
4046                undef %co;
4047                my @files;
4048                while (my $line = <$fd>) {
4049                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
4050                                my %set;
4051                                $set{'file'} = $6;
4052                                $set{'from_id'} = $3;
4053                                $set{'to_id'} = $4;
4054                                $set{'id'} = $set{'to_id'};
4055                                if ($set{'id'} =~ m/0{40}/) {
4056                                        $set{'id'} = $set{'from_id'};
4057                                }
4058                                if ($set{'id'} =~ m/0{40}/) {
4059                                        next;
4060                                }
4061                                push @files, \%set;
4062                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
4063                                if (%co) {
4064                                        if ($alternate) {
4065                                                print "<tr class=\"dark\">\n";
4066                                        } else {
4067                                                print "<tr class=\"light\">\n";
4068                                        }
4069                                        $alternate ^= 1;
4070                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4071                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4072                                              "<td>" .
4073                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
4074                                                      -class => "list subject"},
4075                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4076                                        while (my $setref = shift @files) {
4077                                                my %set = %$setref;
4078                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
4079                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
4080                                                              -class => "list"},
4081                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
4082                                                      "<br/>\n";
4083                                        }
4084                                        print "</td>\n" .
4085                                              "<td class=\"link\">" .
4086                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4087                                              " | " .
4088                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4089                                        print "</td>\n" .
4090                                              "</tr>\n";
4091                                }
4092                                %co = parse_commit($1);
4093                        }
4094                }
4095                close $fd;
4096        }
4097        print "</table>\n";
4098        git_footer_html();
4099}
4100
4101sub git_search_help {
4102        git_header_html();
4103        git_print_page_nav('','', $hash,$hash,$hash);
4104        print <<EOT;
4105<dl>
4106<dt><b>commit</b></dt>
4107<dd>The commit messages and authorship information will be scanned for the given string.</dd>
4108<dt><b>author</b></dt>
4109<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
4110<dt><b>committer</b></dt>
4111<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
4112EOT
4113        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4114        if ($have_pickaxe) {
4115                print <<EOT;
4116<dt><b>pickaxe</b></dt>
4117<dd>All commits that caused the string to appear or disappear from any file (changes that
4118added, removed or "modified" the string) will be listed. This search can take a while and
4119takes a lot of strain on the server, so please use it wisely.</dd>
4120EOT
4121        }
4122        print "</dl>\n";
4123        git_footer_html();
4124}
4125
4126sub git_shortlog {
4127        my $head = git_get_head_hash($project);
4128        if (!defined $hash) {
4129                $hash = $head;
4130        }
4131        if (!defined $page) {
4132                $page = 0;
4133        }
4134        my $refs = git_get_references();
4135
4136        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4137        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
4138                or die_error(undef, "Open git-rev-list failed");
4139        my @revlist = map { chomp; $_ } <$fd>;
4140        close $fd;
4141
4142        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
4143        my $next_link = '';
4144        if ($#revlist >= (100 * ($page+1)-1)) {
4145                $next_link =
4146                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
4147                                 -title => "Alt-n"}, "next");
4148        }
4149
4150
4151        git_header_html();
4152        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
4153        git_print_header_div('summary', $project);
4154
4155        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
4156
4157        git_footer_html();
4158}
4159
4160## ......................................................................
4161## feeds (RSS, Atom; OPML)
4162
4163sub git_feed {
4164        my $format = shift || 'atom';
4165        my ($have_blame) = gitweb_check_feature('blame');
4166
4167        # Atom: http://www.atomenabled.org/developers/syndication/
4168        # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
4169        if ($format ne 'rss' && $format ne 'atom') {
4170                die_error(undef, "Unknown web feed format");
4171        }
4172
4173        # log/feed of current (HEAD) branch, log of given branch, history of file/directory
4174        my $head = $hash || 'HEAD';
4175        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150",
4176                $head, "--", (defined $file_name ? $file_name : ())
4177                or die_error(undef, "Open git-rev-list failed");
4178        my @revlist = map { chomp; $_ } <$fd>;
4179        close $fd or die_error(undef, "Reading git-rev-list failed");
4180
4181        my %latest_commit;
4182        my %latest_date;
4183        my $content_type = "application/$format+xml";
4184        if (defined $cgi->http('HTTP_ACCEPT') &&
4185                 $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
4186                # browser (feed reader) prefers text/xml
4187                $content_type = 'text/xml';
4188        }
4189        if (defined($revlist[0])) {
4190                %latest_commit = parse_commit($revlist[0]);
4191                %latest_date   = parse_date($latest_commit{'committer_epoch'});
4192                print $cgi->header(
4193                        -type => $content_type,
4194                        -charset => 'utf-8',
4195                        -last_modified => $latest_date{'rfc2822'});
4196        } else {
4197                print $cgi->header(
4198                        -type => $content_type,
4199                        -charset => 'utf-8');
4200        }
4201
4202        # Optimization: skip generating the body if client asks only
4203        # for Last-Modified date.
4204        return if ($cgi->request_method() eq 'HEAD');
4205
4206        # header variables
4207        my $title = "$site_name - $project/$action";
4208        my $feed_type = 'log';
4209        if (defined $hash) {
4210                $title .= " - '$hash'";
4211                $feed_type = 'branch log';
4212                if (defined $file_name) {
4213                        $title .= " :: $file_name";
4214                        $feed_type = 'history';
4215                }
4216        } elsif (defined $file_name) {
4217                $title .= " - $file_name";
4218                $feed_type = 'history';
4219        }
4220        $title .= " $feed_type";
4221        my $descr = git_get_project_description($project);
4222        if (defined $descr) {
4223                $descr = esc_html($descr);
4224        } else {
4225                $descr = "$project " .
4226                         ($format eq 'rss' ? 'RSS' : 'Atom') .
4227                         " feed";
4228        }
4229        my $owner = git_get_project_owner($project);
4230        $owner = esc_html($owner);
4231
4232        #header
4233        my $alt_url;
4234        if (defined $file_name) {
4235                $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
4236        } elsif (defined $hash) {
4237                $alt_url = href(-full=>1, action=>"log", hash=>$hash);
4238        } else {
4239                $alt_url = href(-full=>1, action=>"summary");
4240        }
4241        print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
4242        if ($format eq 'rss') {
4243                print <<XML;
4244<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
4245<channel>
4246XML
4247                print "<title>$title</title>\n" .
4248                      "<link>$alt_url</link>\n" .
4249                      "<description>$descr</description>\n" .
4250                      "<language>en</language>\n";
4251        } elsif ($format eq 'atom') {
4252                print <<XML;
4253<feed xmlns="http://www.w3.org/2005/Atom">
4254XML
4255                print "<title>$title</title>\n" .
4256                      "<subtitle>$descr</subtitle>\n" .
4257                      '<link rel="alternate" type="text/html" href="' .
4258                      $alt_url . '" />' . "\n" .
4259                      '<link rel="self" type="' . $content_type . '" href="' .
4260                      $cgi->self_url() . '" />' . "\n" .
4261                      "<id>" . href(-full=>1) . "</id>\n" .
4262                      # use project owner for feed author
4263                      "<author><name>$owner</name></author>\n";
4264                if (defined $favicon) {
4265                        print "<icon>" . esc_url($favicon) . "</icon>\n";
4266                }
4267                if (defined $logo_url) {
4268                        # not twice as wide as tall: 72 x 27 pixels
4269                        print "<logo>" . esc_url($logo_url) . "</logo>\n";
4270                }
4271                if (! %latest_date) {
4272                        # dummy date to keep the feed valid until commits trickle in:
4273                        print "<updated>1970-01-01T00:00:00Z</updated>\n";
4274                } else {
4275                        print "<updated>$latest_date{'iso-8601'}</updated>\n";
4276                }
4277        }
4278
4279        # contents
4280        for (my $i = 0; $i <= $#revlist; $i++) {
4281                my $commit = $revlist[$i];
4282                my %co = parse_commit($commit);
4283                # we read 150, we always show 30 and the ones more recent than 48 hours
4284                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
4285                        last;
4286                }
4287                my %cd = parse_date($co{'committer_epoch'});
4288
4289                # get list of changed files
4290                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4291                        $co{'parent'}, $co{'id'}, "--", (defined $file_name ? $file_name : ())
4292                        or next;
4293                my @difftree = map { chomp; $_ } <$fd>;
4294                close $fd
4295                        or next;
4296
4297                # print element (entry, item)
4298                my $co_url = href(-full=>1, action=>"commit", hash=>$commit);
4299                if ($format eq 'rss') {
4300                        print "<item>\n" .
4301                              "<title>" . esc_html($co{'title'}) . "</title>\n" .
4302                              "<author>" . esc_html($co{'author'}) . "</author>\n" .
4303                              "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
4304                              "<guid isPermaLink=\"true\">$co_url</guid>\n" .
4305                              "<link>$co_url</link>\n" .
4306                              "<description>" . esc_html($co{'title'}) . "</description>\n" .
4307                              "<content:encoded>" .
4308                              "<![CDATA[\n";
4309                } elsif ($format eq 'atom') {
4310                        print "<entry>\n" .
4311                              "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
4312                              "<updated>$cd{'iso-8601'}</updated>\n" .
4313                              "<author><name>" . esc_html($co{'author_name'}) . "</name></author>\n" .
4314                              # use committer for contributor
4315                              "<contributor><name>" . esc_html($co{'committer_name'}) . "</name></contributor>\n" .
4316                              "<published>$cd{'iso-8601'}</published>\n" .
4317                              "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
4318                              "<id>$co_url</id>\n" .
4319                              "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
4320                              "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
4321                }
4322                my $comment = $co{'comment'};
4323                print "<pre>\n";
4324                foreach my $line (@$comment) {
4325                        $line = esc_html($line);
4326                        print "$line\n";
4327                }
4328                print "</pre><ul>\n";
4329                foreach my $difftree_line (@difftree) {
4330                        my %difftree = parse_difftree_raw_line($difftree_line);
4331                        next if !$difftree{'from_id'};
4332
4333                        my $file = $difftree{'file'} || $difftree{'to_file'};
4334
4335                        print "<li>" .
4336                              "[" .
4337                              $cgi->a({-href => href(-full=>1, action=>"blobdiff",
4338                                                     hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
4339                                                     hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
4340                                                     file_name=>$file, file_parent=>$difftree{'from_file'}),
4341                                      -title => "diff"}, 'D');
4342                        if ($have_blame) {
4343                                print $cgi->a({-href => href(-full=>1, action=>"blame",
4344                                                             file_name=>$file, hash_base=>$commit),
4345                                              -title => "blame"}, 'B');
4346                        }
4347                        # if this is not a feed of a file history
4348                        if (!defined $file_name || $file_name ne $file) {
4349                                print $cgi->a({-href => href(-full=>1, action=>"history",
4350                                                             file_name=>$file, hash=>$commit),
4351                                              -title => "history"}, 'H');
4352                        }
4353                        $file = esc_path($file);
4354                        print "] ".
4355                              "$file</li>\n";
4356                }
4357                if ($format eq 'rss') {
4358                        print "</ul>]]>\n" .
4359                              "</content:encoded>\n" .
4360                              "</item>\n";
4361                } elsif ($format eq 'atom') {
4362                        print "</ul>\n</div>\n" .
4363                              "</content>\n" .
4364                              "</entry>\n";
4365                }
4366        }
4367
4368        # end of feed
4369        if ($format eq 'rss') {
4370                print "</channel>\n</rss>\n";
4371        }       elsif ($format eq 'atom') {
4372                print "</feed>\n";
4373        }
4374}
4375
4376sub git_rss {
4377        git_feed('rss');
4378}
4379
4380sub git_atom {
4381        git_feed('atom');
4382}
4383
4384sub git_opml {
4385        my @list = git_get_projects_list();
4386
4387        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4388        print <<XML;
4389<?xml version="1.0" encoding="utf-8"?>
4390<opml version="1.0">
4391<head>
4392  <title>$site_name OPML Export</title>
4393</head>
4394<body>
4395<outline text="git RSS feeds">
4396XML
4397
4398        foreach my $pr (@list) {
4399                my %proj = %$pr;
4400                my $head = git_get_head_hash($proj{'path'});
4401                if (!defined $head) {
4402                        next;
4403                }
4404                $git_dir = "$projectroot/$proj{'path'}";
4405                my %co = parse_commit($head);
4406                if (!%co) {
4407                        next;
4408                }
4409
4410                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
4411                my $rss  = "$my_url?p=$proj{'path'};a=rss";
4412                my $html = "$my_url?p=$proj{'path'};a=summary";
4413                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
4414        }
4415        print <<XML;
4416</outline>
4417</body>
4418</opml>
4419XML
4420}