ea39d7e98bb646897d1bb1f1e270b1cd2fc046ad
   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
  21BEGIN {
  22        CGI->compile() if $ENV{MOD_PERL};
  23}
  24
  25our $cgi = new CGI;
  26our $version = "++GIT_VERSION++";
  27our $my_url = $cgi->url();
  28our $my_uri = $cgi->url(-absolute => 1);
  29
  30# core git executable to use
  31# this can just be "git" if your webserver has a sensible PATH
  32our $GIT = "++GIT_BINDIR++/git";
  33
  34# absolute fs-path which will be prepended to the project path
  35#our $projectroot = "/pub/scm";
  36our $projectroot = "++GITWEB_PROJECTROOT++";
  37
  38# target of the home link on top of all pages
  39our $home_link = $my_uri || "/";
  40
  41# string of the home link on top of all pages
  42our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  43
  44# name of your site or organization to appear in page titles
  45# replace this with something more descriptive for clearer bookmarks
  46our $site_name = "++GITWEB_SITENAME++"
  47                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  48
  49# filename of html text to include at top of each page
  50our $site_header = "++GITWEB_SITE_HEADER++";
  51# html text to include at home page
  52our $home_text = "++GITWEB_HOMETEXT++";
  53# filename of html text to include at bottom of each page
  54our $site_footer = "++GITWEB_SITE_FOOTER++";
  55
  56# URI of stylesheets
  57our @stylesheets = ("++GITWEB_CSS++");
  58# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  59our $stylesheet = undef;
  60# URI of GIT logo (72x27 size)
  61our $logo = "++GITWEB_LOGO++";
  62# URI of GIT favicon, assumed to be image/png type
  63our $favicon = "++GITWEB_FAVICON++";
  64
  65# URI and label (title) of GIT logo link
  66#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  67#our $logo_label = "git documentation";
  68our $logo_url = "http://git.or.cz/";
  69our $logo_label = "git homepage";
  70
  71# source of projects list
  72our $projects_list = "++GITWEB_LIST++";
  73
  74# show repository only if this file exists
  75# (only effective if this variable evaluates to true)
  76our $export_ok = "++GITWEB_EXPORT_OK++";
  77
  78# only allow viewing of repositories also shown on the overview page
  79our $strict_export = "++GITWEB_STRICT_EXPORT++";
  80
  81# list of git base URLs used for URL to where fetch project from,
  82# i.e. full URL is "$git_base_url/$project"
  83our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  84
  85# default blob_plain mimetype and default charset for text/plain blob
  86our $default_blob_plain_mimetype = 'text/plain';
  87our $default_text_plain_charset  = undef;
  88
  89# file to use for guessing MIME types before trying /etc/mime.types
  90# (relative to the current git repository)
  91our $mimetypes_file = undef;
  92
  93# You define site-wide feature defaults here; override them with
  94# $GITWEB_CONFIG as necessary.
  95our %feature = (
  96        # feature => {
  97        #       'sub' => feature-sub (subroutine),
  98        #       'override' => allow-override (boolean),
  99        #       'default' => [ default options...] (array reference)}
 100        #
 101        # if feature is overridable (it means that allow-override has true value,
 102        # then feature-sub will be called with default options as parameters;
 103        # return value of feature-sub indicates if to enable specified feature
 104        #
 105        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 106
 107        # Enable the 'blame' blob view, showing the last commit that modified
 108        # each line in the file. This can be very CPU-intensive.
 109
 110        # To enable system wide have in $GITWEB_CONFIG
 111        # $feature{'blame'}{'default'} = [1];
 112        # To have project specific config enable override in $GITWEB_CONFIG
 113        # $feature{'blame'}{'override'} = 1;
 114        # and in project config gitweb.blame = 0|1;
 115        'blame' => {
 116                'sub' => \&feature_blame,
 117                'override' => 0,
 118                'default' => [0]},
 119
 120        # Enable the 'snapshot' link, providing a compressed tarball of any
 121        # tree. This can potentially generate high traffic if you have large
 122        # project.
 123
 124        # To disable system wide have in $GITWEB_CONFIG
 125        # $feature{'snapshot'}{'default'} = [undef];
 126        # To have project specific config enable override in $GITWEB_CONFIG
 127        # $feature{'snapshot'}{'override'} = 1;
 128        # and in project config gitweb.snapshot = none|gzip|bzip2;
 129        'snapshot' => {
 130                'sub' => \&feature_snapshot,
 131                'override' => 0,
 132                #         => [content-encoding, suffix, program]
 133                'default' => ['x-gzip', 'gz', 'gzip']},
 134
 135        # Enable text search, which will list the commits which match author,
 136        # committer or commit text to a given string.  Enabled by default.
 137        'search' => {
 138                'override' => 0,
 139                'default' => [1]},
 140
 141        # Enable the pickaxe search, which will list the commits that modified
 142        # a given string in a file. This can be practical and quite faster
 143        # alternative to 'blame', but still potentially CPU-intensive.
 144
 145        # To enable system wide have in $GITWEB_CONFIG
 146        # $feature{'pickaxe'}{'default'} = [1];
 147        # To have project specific config enable override in $GITWEB_CONFIG
 148        # $feature{'pickaxe'}{'override'} = 1;
 149        # and in project config gitweb.pickaxe = 0|1;
 150        'pickaxe' => {
 151                'sub' => \&feature_pickaxe,
 152                'override' => 0,
 153                'default' => [1]},
 154
 155        # Make gitweb use an alternative format of the URLs which can be
 156        # more readable and natural-looking: project name is embedded
 157        # directly in the path and the query string contains other
 158        # auxiliary information. All gitweb installations recognize
 159        # URL in either format; this configures in which formats gitweb
 160        # generates links.
 161
 162        # To enable system wide have in $GITWEB_CONFIG
 163        # $feature{'pathinfo'}{'default'} = [1];
 164        # Project specific override is not supported.
 165
 166        # Note that you will need to change the default location of CSS,
 167        # favicon, logo and possibly other files to an absolute URL. Also,
 168        # if gitweb.cgi serves as your indexfile, you will need to force
 169        # $my_uri to contain the script name in your $GITWEB_CONFIG.
 170        'pathinfo' => {
 171                'override' => 0,
 172                'default' => [0]},
 173
 174        # Make gitweb consider projects in project root subdirectories
 175        # to be forks of existing projects. Given project $projname.git,
 176        # projects matching $projname/*.git will not be shown in the main
 177        # projects list, instead a '+' mark will be added to $projname
 178        # there and a 'forks' view will be enabled for the project, listing
 179        # all the forks. This feature is supported only if project list
 180        # is taken from a directory, not file.
 181
 182        # To enable system wide have in $GITWEB_CONFIG
 183        # $feature{'forks'}{'default'} = [1];
 184        # Project specific override is not supported.
 185        'forks' => {
 186                'override' => 0,
 187                'default' => [0]},
 188);
 189
 190sub gitweb_check_feature {
 191        my ($name) = @_;
 192        return unless exists $feature{$name};
 193        my ($sub, $override, @defaults) = (
 194                $feature{$name}{'sub'},
 195                $feature{$name}{'override'},
 196                @{$feature{$name}{'default'}});
 197        if (!$override) { return @defaults; }
 198        if (!defined $sub) {
 199                warn "feature $name is not overrideable";
 200                return @defaults;
 201        }
 202        return $sub->(@defaults);
 203}
 204
 205sub feature_blame {
 206        my ($val) = git_get_project_config('blame', '--bool');
 207
 208        if ($val eq 'true') {
 209                return 1;
 210        } elsif ($val eq 'false') {
 211                return 0;
 212        }
 213
 214        return $_[0];
 215}
 216
 217sub feature_snapshot {
 218        my ($ctype, $suffix, $command) = @_;
 219
 220        my ($val) = git_get_project_config('snapshot');
 221
 222        if ($val eq 'gzip') {
 223                return ('x-gzip', 'gz', 'gzip');
 224        } elsif ($val eq 'bzip2') {
 225                return ('x-bzip2', 'bz2', 'bzip2');
 226        } elsif ($val eq 'none') {
 227                return ();
 228        }
 229
 230        return ($ctype, $suffix, $command);
 231}
 232
 233sub gitweb_have_snapshot {
 234        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 235        my $have_snapshot = (defined $ctype && defined $suffix);
 236
 237        return $have_snapshot;
 238}
 239
 240sub feature_pickaxe {
 241        my ($val) = git_get_project_config('pickaxe', '--bool');
 242
 243        if ($val eq 'true') {
 244                return (1);
 245        } elsif ($val eq 'false') {
 246                return (0);
 247        }
 248
 249        return ($_[0]);
 250}
 251
 252# checking HEAD file with -e is fragile if the repository was
 253# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 254# and then pruned.
 255sub check_head_link {
 256        my ($dir) = @_;
 257        my $headfile = "$dir/HEAD";
 258        return ((-e $headfile) ||
 259                (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 260}
 261
 262sub check_export_ok {
 263        my ($dir) = @_;
 264        return (check_head_link($dir) &&
 265                (!$export_ok || -e "$dir/$export_ok"));
 266}
 267
 268# rename detection options for git-diff and git-diff-tree
 269# - default is '-M', with the cost proportional to
 270#   (number of removed files) * (number of new files).
 271# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 272#   (number of changed files + number of removed files) * (number of new files)
 273# - even more costly is '-C', '--find-copies-harder' with cost
 274#   (number of files in the original tree) * (number of new files)
 275# - one might want to include '-B' option, e.g. '-B', '-M'
 276our @diff_opts = ('-M'); # taken from git_commit
 277
 278our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 279do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 280
 281# version of the core git binary
 282our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 283
 284$projects_list ||= $projectroot;
 285
 286# ======================================================================
 287# input validation and dispatch
 288our $action = $cgi->param('a');
 289if (defined $action) {
 290        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 291                die_error(undef, "Invalid action parameter");
 292        }
 293}
 294
 295# parameters which are pathnames
 296our $project = $cgi->param('p');
 297if (defined $project) {
 298        if (!validate_pathname($project) ||
 299            !(-d "$projectroot/$project") ||
 300            !check_head_link("$projectroot/$project") ||
 301            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 302            ($strict_export && !project_in_list($project))) {
 303                undef $project;
 304                die_error(undef, "No such project");
 305        }
 306}
 307
 308our $file_name = $cgi->param('f');
 309if (defined $file_name) {
 310        if (!validate_pathname($file_name)) {
 311                die_error(undef, "Invalid file parameter");
 312        }
 313}
 314
 315our $file_parent = $cgi->param('fp');
 316if (defined $file_parent) {
 317        if (!validate_pathname($file_parent)) {
 318                die_error(undef, "Invalid file parent parameter");
 319        }
 320}
 321
 322# parameters which are refnames
 323our $hash = $cgi->param('h');
 324if (defined $hash) {
 325        if (!validate_refname($hash)) {
 326                die_error(undef, "Invalid hash parameter");
 327        }
 328}
 329
 330our $hash_parent = $cgi->param('hp');
 331if (defined $hash_parent) {
 332        if (!validate_refname($hash_parent)) {
 333                die_error(undef, "Invalid hash parent parameter");
 334        }
 335}
 336
 337our $hash_base = $cgi->param('hb');
 338if (defined $hash_base) {
 339        if (!validate_refname($hash_base)) {
 340                die_error(undef, "Invalid hash base parameter");
 341        }
 342}
 343
 344our $hash_parent_base = $cgi->param('hpb');
 345if (defined $hash_parent_base) {
 346        if (!validate_refname($hash_parent_base)) {
 347                die_error(undef, "Invalid hash parent base parameter");
 348        }
 349}
 350
 351# other parameters
 352our $page = $cgi->param('pg');
 353if (defined $page) {
 354        if ($page =~ m/[^0-9]/) {
 355                die_error(undef, "Invalid page parameter");
 356        }
 357}
 358
 359our $searchtext = $cgi->param('s');
 360if (defined $searchtext) {
 361        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 362                die_error(undef, "Invalid search parameter");
 363        }
 364        if (length($searchtext) < 2) {
 365                die_error(undef, "At least two characters are required for search parameter");
 366        }
 367        $searchtext = quotemeta $searchtext;
 368}
 369
 370our $searchtype = $cgi->param('st');
 371if (defined $searchtype) {
 372        if ($searchtype =~ m/[^a-z]/) {
 373                die_error(undef, "Invalid searchtype parameter");
 374        }
 375}
 376
 377# now read PATH_INFO and use it as alternative to parameters
 378sub evaluate_path_info {
 379        return if defined $project;
 380        my $path_info = $ENV{"PATH_INFO"};
 381        return if !$path_info;
 382        $path_info =~ s,^/+,,;
 383        return if !$path_info;
 384        # find which part of PATH_INFO is project
 385        $project = $path_info;
 386        $project =~ s,/+$,,;
 387        while ($project && !check_head_link("$projectroot/$project")) {
 388                $project =~ s,/*[^/]*$,,;
 389        }
 390        # validate project
 391        $project = validate_pathname($project);
 392        if (!$project ||
 393            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 394            ($strict_export && !project_in_list($project))) {
 395                undef $project;
 396                return;
 397        }
 398        # do not change any parameters if an action is given using the query string
 399        return if $action;
 400        $path_info =~ s,^$project/*,,;
 401        my ($refname, $pathname) = split(/:/, $path_info, 2);
 402        if (defined $pathname) {
 403                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 404                # we could use git_get_type(branch:pathname), but it needs $git_dir
 405                $pathname =~ s,^/+,,;
 406                if (!$pathname || substr($pathname, -1) eq "/") {
 407                        $action  ||= "tree";
 408                        $pathname =~ s,/$,,;
 409                } else {
 410                        $action  ||= "blob_plain";
 411                }
 412                $hash_base ||= validate_refname($refname);
 413                $file_name ||= validate_pathname($pathname);
 414        } elsif (defined $refname) {
 415                # we got "project.git/branch"
 416                $action ||= "shortlog";
 417                $hash   ||= validate_refname($refname);
 418        }
 419}
 420evaluate_path_info();
 421
 422# path to the current git repository
 423our $git_dir;
 424$git_dir = "$projectroot/$project" if $project;
 425
 426# dispatch
 427my %actions = (
 428        "blame" => \&git_blame2,
 429        "blobdiff" => \&git_blobdiff,
 430        "blobdiff_plain" => \&git_blobdiff_plain,
 431        "blob" => \&git_blob,
 432        "blob_plain" => \&git_blob_plain,
 433        "commitdiff" => \&git_commitdiff,
 434        "commitdiff_plain" => \&git_commitdiff_plain,
 435        "commit" => \&git_commit,
 436        "forks" => \&git_forks,
 437        "heads" => \&git_heads,
 438        "history" => \&git_history,
 439        "log" => \&git_log,
 440        "rss" => \&git_rss,
 441        "atom" => \&git_atom,
 442        "search" => \&git_search,
 443        "search_help" => \&git_search_help,
 444        "shortlog" => \&git_shortlog,
 445        "summary" => \&git_summary,
 446        "tag" => \&git_tag,
 447        "tags" => \&git_tags,
 448        "tree" => \&git_tree,
 449        "snapshot" => \&git_snapshot,
 450        "object" => \&git_object,
 451        # those below don't need $project
 452        "opml" => \&git_opml,
 453        "project_list" => \&git_project_list,
 454        "project_index" => \&git_project_index,
 455);
 456
 457if (defined $project) {
 458        $action ||= 'summary';
 459} else {
 460        $action ||= 'project_list';
 461}
 462if (!defined($actions{$action})) {
 463        die_error(undef, "Unknown action");
 464}
 465if ($action !~ m/^(opml|project_list|project_index)$/ &&
 466    !$project) {
 467        die_error(undef, "Project needed");
 468}
 469$actions{$action}->();
 470exit;
 471
 472## ======================================================================
 473## action links
 474
 475sub href(%) {
 476        my %params = @_;
 477        # default is to use -absolute url() i.e. $my_uri
 478        my $href = $params{-full} ? $my_url : $my_uri;
 479
 480        # XXX: Warning: If you touch this, check the search form for updating,
 481        # too.
 482
 483        my @mapping = (
 484                project => "p",
 485                action => "a",
 486                file_name => "f",
 487                file_parent => "fp",
 488                hash => "h",
 489                hash_parent => "hp",
 490                hash_base => "hb",
 491                hash_parent_base => "hpb",
 492                page => "pg",
 493                order => "o",
 494                searchtext => "s",
 495                searchtype => "st",
 496        );
 497        my %mapping = @mapping;
 498
 499        $params{'project'} = $project unless exists $params{'project'};
 500
 501        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 502        if ($use_pathinfo) {
 503                # use PATH_INFO for project name
 504                $href .= "/$params{'project'}" if defined $params{'project'};
 505                delete $params{'project'};
 506
 507                # Summary just uses the project path URL
 508                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 509                        delete $params{'action'};
 510                }
 511        }
 512
 513        # now encode the parameters explicitly
 514        my @result = ();
 515        for (my $i = 0; $i < @mapping; $i += 2) {
 516                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 517                if (defined $params{$name}) {
 518                        push @result, $symbol . "=" . esc_param($params{$name});
 519                }
 520        }
 521        $href .= "?" . join(';', @result) if scalar @result;
 522
 523        return $href;
 524}
 525
 526
 527## ======================================================================
 528## validation, quoting/unquoting and escaping
 529
 530sub validate_pathname {
 531        my $input = shift || return undef;
 532
 533        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 534        # at the beginning, at the end, and between slashes.
 535        # also this catches doubled slashes
 536        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 537                return undef;
 538        }
 539        # no null characters
 540        if ($input =~ m!\0!) {
 541                return undef;
 542        }
 543        return $input;
 544}
 545
 546sub validate_refname {
 547        my $input = shift || return undef;
 548
 549        # textual hashes are O.K.
 550        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 551                return $input;
 552        }
 553        # it must be correct pathname
 554        $input = validate_pathname($input)
 555                or return undef;
 556        # restrictions on ref name according to git-check-ref-format
 557        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 558                return undef;
 559        }
 560        return $input;
 561}
 562
 563# very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 564sub to_utf8 {
 565        my $str = shift;
 566        return decode("utf8", $str, Encode::FB_DEFAULT);
 567}
 568
 569# quote unsafe chars, but keep the slash, even when it's not
 570# correct, but quoted slashes look too horrible in bookmarks
 571sub esc_param {
 572        my $str = shift;
 573        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 574        $str =~ s/\+/%2B/g;
 575        $str =~ s/ /\+/g;
 576        return $str;
 577}
 578
 579# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 580sub esc_url {
 581        my $str = shift;
 582        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 583        $str =~ s/\+/%2B/g;
 584        $str =~ s/ /\+/g;
 585        return $str;
 586}
 587
 588# replace invalid utf8 character with SUBSTITUTION sequence
 589sub esc_html ($;%) {
 590        my $str = shift;
 591        my %opts = @_;
 592
 593        $str = to_utf8($str);
 594        $str = escapeHTML($str);
 595        if ($opts{'-nbsp'}) {
 596                $str =~ s/ /&nbsp;/g;
 597        }
 598        $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
 599        return $str;
 600}
 601
 602# quote control characters and escape filename to HTML
 603sub esc_path {
 604        my $str = shift;
 605        my %opts = @_;
 606
 607        $str = to_utf8($str);
 608        $str = escapeHTML($str);
 609        if ($opts{'-nbsp'}) {
 610                $str =~ s/ /&nbsp;/g;
 611        }
 612        $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
 613        return $str;
 614}
 615
 616# Make control characters "printable", using character escape codes (CEC)
 617sub quot_cec {
 618        my $cntrl = shift;
 619        my %es = ( # character escape codes, aka escape sequences
 620                   "\t" => '\t',   # tab            (HT)
 621                   "\n" => '\n',   # line feed      (LF)
 622                   "\r" => '\r',   # carrige return (CR)
 623                   "\f" => '\f',   # form feed      (FF)
 624                   "\b" => '\b',   # backspace      (BS)
 625                   "\a" => '\a',   # alarm (bell)   (BEL)
 626                   "\e" => '\e',   # escape         (ESC)
 627                   "\013" => '\v', # vertical tab   (VT)
 628                   "\000" => '\0', # nul character  (NUL)
 629                   );
 630        my $chr = ( (exists $es{$cntrl})
 631                    ? $es{$cntrl}
 632                    : sprintf('\%03o', ord($cntrl)) );
 633        return "<span class=\"cntrl\">$chr</span>";
 634}
 635
 636# Alternatively use unicode control pictures codepoints,
 637# Unicode "printable representation" (PR)
 638sub quot_upr {
 639        my $cntrl = shift;
 640        my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
 641        return "<span class=\"cntrl\">$chr</span>";
 642}
 643
 644# git may return quoted and escaped filenames
 645sub unquote {
 646        my $str = shift;
 647
 648        sub unq {
 649                my $seq = shift;
 650                my %es = ( # character escape codes, aka escape sequences
 651                        't' => "\t",   # tab            (HT, TAB)
 652                        'n' => "\n",   # newline        (NL)
 653                        'r' => "\r",   # return         (CR)
 654                        'f' => "\f",   # form feed      (FF)
 655                        'b' => "\b",   # backspace      (BS)
 656                        'a' => "\a",   # alarm (bell)   (BEL)
 657                        'e' => "\e",   # escape         (ESC)
 658                        'v' => "\013", # vertical tab   (VT)
 659                );
 660
 661                if ($seq =~ m/^[0-7]{1,3}$/) {
 662                        # octal char sequence
 663                        return chr(oct($seq));
 664                } elsif (exists $es{$seq}) {
 665                        # C escape sequence, aka character escape code
 666                        return $es{$seq}
 667                }
 668                # quoted ordinary character
 669                return $seq;
 670        }
 671
 672        if ($str =~ m/^"(.*)"$/) {
 673                # needs unquoting
 674                $str = $1;
 675                $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
 676        }
 677        return $str;
 678}
 679
 680# escape tabs (convert tabs to spaces)
 681sub untabify {
 682        my $line = shift;
 683
 684        while ((my $pos = index($line, "\t")) != -1) {
 685                if (my $count = (8 - ($pos % 8))) {
 686                        my $spaces = ' ' x $count;
 687                        $line =~ s/\t/$spaces/;
 688                }
 689        }
 690
 691        return $line;
 692}
 693
 694sub project_in_list {
 695        my $project = shift;
 696        my @list = git_get_projects_list();
 697        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 698}
 699
 700## ----------------------------------------------------------------------
 701## HTML aware string manipulation
 702
 703sub chop_str {
 704        my $str = shift;
 705        my $len = shift;
 706        my $add_len = shift || 10;
 707
 708        # allow only $len chars, but don't cut a word if it would fit in $add_len
 709        # if it doesn't fit, cut it if it's still longer than the dots we would add
 710        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 711        my $body = $1;
 712        my $tail = $2;
 713        if (length($tail) > 4) {
 714                $tail = " ...";
 715                $body =~ s/&[^;]*$//; # remove chopped character entities
 716        }
 717        return "$body$tail";
 718}
 719
 720## ----------------------------------------------------------------------
 721## functions returning short strings
 722
 723# CSS class for given age value (in seconds)
 724sub age_class {
 725        my $age = shift;
 726
 727        if ($age < 60*60*2) {
 728                return "age0";
 729        } elsif ($age < 60*60*24*2) {
 730                return "age1";
 731        } else {
 732                return "age2";
 733        }
 734}
 735
 736# convert age in seconds to "nn units ago" string
 737sub age_string {
 738        my $age = shift;
 739        my $age_str;
 740
 741        if ($age > 60*60*24*365*2) {
 742                $age_str = (int $age/60/60/24/365);
 743                $age_str .= " years ago";
 744        } elsif ($age > 60*60*24*(365/12)*2) {
 745                $age_str = int $age/60/60/24/(365/12);
 746                $age_str .= " months ago";
 747        } elsif ($age > 60*60*24*7*2) {
 748                $age_str = int $age/60/60/24/7;
 749                $age_str .= " weeks ago";
 750        } elsif ($age > 60*60*24*2) {
 751                $age_str = int $age/60/60/24;
 752                $age_str .= " days ago";
 753        } elsif ($age > 60*60*2) {
 754                $age_str = int $age/60/60;
 755                $age_str .= " hours ago";
 756        } elsif ($age > 60*2) {
 757                $age_str = int $age/60;
 758                $age_str .= " min ago";
 759        } elsif ($age > 2) {
 760                $age_str = int $age;
 761                $age_str .= " sec ago";
 762        } else {
 763                $age_str .= " right now";
 764        }
 765        return $age_str;
 766}
 767
 768# convert file mode in octal to symbolic file mode string
 769sub mode_str {
 770        my $mode = oct shift;
 771
 772        if (S_ISDIR($mode & S_IFMT)) {
 773                return 'drwxr-xr-x';
 774        } elsif (S_ISLNK($mode)) {
 775                return 'lrwxrwxrwx';
 776        } elsif (S_ISREG($mode)) {
 777                # git cares only about the executable bit
 778                if ($mode & S_IXUSR) {
 779                        return '-rwxr-xr-x';
 780                } else {
 781                        return '-rw-r--r--';
 782                };
 783        } else {
 784                return '----------';
 785        }
 786}
 787
 788# convert file mode in octal to file type string
 789sub file_type {
 790        my $mode = shift;
 791
 792        if ($mode !~ m/^[0-7]+$/) {
 793                return $mode;
 794        } else {
 795                $mode = oct $mode;
 796        }
 797
 798        if (S_ISDIR($mode & S_IFMT)) {
 799                return "directory";
 800        } elsif (S_ISLNK($mode)) {
 801                return "symlink";
 802        } elsif (S_ISREG($mode)) {
 803                return "file";
 804        } else {
 805                return "unknown";
 806        }
 807}
 808
 809# convert file mode in octal to file type description string
 810sub file_type_long {
 811        my $mode = shift;
 812
 813        if ($mode !~ m/^[0-7]+$/) {
 814                return $mode;
 815        } else {
 816                $mode = oct $mode;
 817        }
 818
 819        if (S_ISDIR($mode & S_IFMT)) {
 820                return "directory";
 821        } elsif (S_ISLNK($mode)) {
 822                return "symlink";
 823        } elsif (S_ISREG($mode)) {
 824                if ($mode & S_IXUSR) {
 825                        return "executable";
 826                } else {
 827                        return "file";
 828                };
 829        } else {
 830                return "unknown";
 831        }
 832}
 833
 834
 835## ----------------------------------------------------------------------
 836## functions returning short HTML fragments, or transforming HTML fragments
 837## which don't belong to other sections
 838
 839# format line of commit message.
 840sub format_log_line_html {
 841        my $line = shift;
 842
 843        $line = esc_html($line, -nbsp=>1);
 844        if ($line =~ m/([0-9a-fA-F]{8,40})/) {
 845                my $hash_text = $1;
 846                my $link =
 847                        $cgi->a({-href => href(action=>"object", hash=>$hash_text),
 848                                -class => "text"}, $hash_text);
 849                $line =~ s/$hash_text/$link/;
 850        }
 851        return $line;
 852}
 853
 854# format marker of refs pointing to given object
 855sub format_ref_marker {
 856        my ($refs, $id) = @_;
 857        my $markers = '';
 858
 859        if (defined $refs->{$id}) {
 860                foreach my $ref (@{$refs->{$id}}) {
 861                        my ($type, $name) = qw();
 862                        # e.g. tags/v2.6.11 or heads/next
 863                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 864                                $type = $1;
 865                                $name = $2;
 866                        } else {
 867                                $type = "ref";
 868                                $name = $ref;
 869                        }
 870
 871                        $markers .= " <span class=\"$type\" title=\"$ref\">" .
 872                                    esc_html($name) . "</span>";
 873                }
 874        }
 875
 876        if ($markers) {
 877                return ' <span class="refs">'. $markers . '</span>';
 878        } else {
 879                return "";
 880        }
 881}
 882
 883# format, perhaps shortened and with markers, title line
 884sub format_subject_html {
 885        my ($long, $short, $href, $extra) = @_;
 886        $extra = '' unless defined($extra);
 887
 888        if (length($short) < length($long)) {
 889                return $cgi->a({-href => $href, -class => "list subject",
 890                                -title => to_utf8($long)},
 891                       esc_html($short) . $extra);
 892        } else {
 893                return $cgi->a({-href => $href, -class => "list subject"},
 894                       esc_html($long)  . $extra);
 895        }
 896}
 897
 898# format patch (diff) line (rather not to be used for diff headers)
 899sub format_diff_line {
 900        my $line = shift;
 901        my ($from, $to) = @_;
 902        my $char = substr($line, 0, 1);
 903        my $diff_class = "";
 904
 905        chomp $line;
 906
 907        if ($char eq '+') {
 908                $diff_class = " add";
 909        } elsif ($char eq "-") {
 910                $diff_class = " rem";
 911        } elsif ($char eq "@") {
 912                $diff_class = " chunk_header";
 913        } elsif ($char eq "\\") {
 914                $diff_class = " incomplete";
 915        }
 916        $line = untabify($line);
 917        if ($from && $to && $line =~ m/^\@{2} /) {
 918                my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
 919                        $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
 920
 921                $from_lines = 0 unless defined $from_lines;
 922                $to_lines   = 0 unless defined $to_lines;
 923
 924                if ($from->{'href'}) {
 925                        $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
 926                                             -class=>"list"}, $from_text);
 927                }
 928                if ($to->{'href'}) {
 929                        $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
 930                                             -class=>"list"}, $to_text);
 931                }
 932                $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
 933                        "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
 934                return "<div class=\"diff$diff_class\">$line</div>\n";
 935        }
 936        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
 937}
 938
 939## ----------------------------------------------------------------------
 940## git utility subroutines, invoking git commands
 941
 942# returns path to the core git executable and the --git-dir parameter as list
 943sub git_cmd {
 944        return $GIT, '--git-dir='.$git_dir;
 945}
 946
 947# returns path to the core git executable and the --git-dir parameter as string
 948sub git_cmd_str {
 949        return join(' ', git_cmd());
 950}
 951
 952# get HEAD ref of given project as hash
 953sub git_get_head_hash {
 954        my $project = shift;
 955        my $o_git_dir = $git_dir;
 956        my $retval = undef;
 957        $git_dir = "$projectroot/$project";
 958        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 959                my $head = <$fd>;
 960                close $fd;
 961                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 962                        $retval = $1;
 963                }
 964        }
 965        if (defined $o_git_dir) {
 966                $git_dir = $o_git_dir;
 967        }
 968        return $retval;
 969}
 970
 971# get type of given object
 972sub git_get_type {
 973        my $hash = shift;
 974
 975        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 976        my $type = <$fd>;
 977        close $fd or return;
 978        chomp $type;
 979        return $type;
 980}
 981
 982sub git_get_project_config {
 983        my ($key, $type) = @_;
 984
 985        return unless ($key);
 986        $key =~ s/^gitweb\.//;
 987        return if ($key =~ m/\W/);
 988
 989        my @x = (git_cmd(), 'config');
 990        if (defined $type) { push @x, $type; }
 991        push @x, "--get";
 992        push @x, "gitweb.$key";
 993        my $val = qx(@x);
 994        chomp $val;
 995        return ($val);
 996}
 997
 998# get hash of given path at given ref
 999sub git_get_hash_by_path {
1000        my $base = shift;
1001        my $path = shift || return undef;
1002        my $type = shift;
1003
1004        $path =~ s,/+$,,;
1005
1006        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
1007                or die_error(undef, "Open git-ls-tree failed");
1008        my $line = <$fd>;
1009        close $fd or return undef;
1010
1011        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1012        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
1013        if (defined $type && $type ne $2) {
1014                # type doesn't match
1015                return undef;
1016        }
1017        return $3;
1018}
1019
1020## ......................................................................
1021## git utility functions, directly accessing git repository
1022
1023sub git_get_project_description {
1024        my $path = shift;
1025
1026        open my $fd, "$projectroot/$path/description" or return undef;
1027        my $descr = <$fd>;
1028        close $fd;
1029        chomp $descr;
1030        return $descr;
1031}
1032
1033sub git_get_project_url_list {
1034        my $path = shift;
1035
1036        open my $fd, "$projectroot/$path/cloneurl" or return;
1037        my @git_project_url_list = map { chomp; $_ } <$fd>;
1038        close $fd;
1039
1040        return wantarray ? @git_project_url_list : \@git_project_url_list;
1041}
1042
1043sub git_get_projects_list {
1044        my ($filter) = @_;
1045        my @list;
1046
1047        $filter ||= '';
1048        $filter =~ s/\.git$//;
1049
1050        if (-d $projects_list) {
1051                # search in directory
1052                my $dir = $projects_list . ($filter ? "/$filter" : '');
1053                # remove the trailing "/"
1054                $dir =~ s!/+$!!;
1055                my $pfxlen = length("$dir");
1056
1057                my ($check_forks) = gitweb_check_feature('forks');
1058
1059                File::Find::find({
1060                        follow_fast => 1, # follow symbolic links
1061                        dangling_symlinks => 0, # ignore dangling symlinks, silently
1062                        wanted => sub {
1063                                # skip project-list toplevel, if we get it.
1064                                return if (m!^[/.]$!);
1065                                # only directories can be git repositories
1066                                return unless (-d $_);
1067
1068                                my $subdir = substr($File::Find::name, $pfxlen + 1);
1069                                # we check related file in $projectroot
1070                                if ($check_forks and $subdir =~ m#/.#) {
1071                                        $File::Find::prune = 1;
1072                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1073                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1074                                        $File::Find::prune = 1;
1075                                }
1076                        },
1077                }, "$dir");
1078
1079        } elsif (-f $projects_list) {
1080                # read from file(url-encoded):
1081                # 'git%2Fgit.git Linus+Torvalds'
1082                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1083                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1084                open my ($fd), $projects_list or return;
1085                while (my $line = <$fd>) {
1086                        chomp $line;
1087                        my ($path, $owner) = split ' ', $line;
1088                        $path = unescape($path);
1089                        $owner = unescape($owner);
1090                        if (!defined $path) {
1091                                next;
1092                        }
1093                        if ($filter ne '') {
1094                                # looking for forks;
1095                                my $pfx = substr($path, 0, length($filter));
1096                                if ($pfx ne $filter) {
1097                                        next;
1098                                }
1099                                my $sfx = substr($path, length($filter));
1100                                if ($sfx !~ /^\/.*\.git$/) {
1101                                        next;
1102                                }
1103                        }
1104                        if (check_export_ok("$projectroot/$path")) {
1105                                my $pr = {
1106                                        path => $path,
1107                                        owner => to_utf8($owner),
1108                                };
1109                                push @list, $pr
1110                        }
1111                }
1112                close $fd;
1113        }
1114        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
1115        return @list;
1116}
1117
1118sub git_get_project_owner {
1119        my $project = shift;
1120        my $owner;
1121
1122        return undef unless $project;
1123
1124        # read from file (url-encoded):
1125        # 'git%2Fgit.git Linus+Torvalds'
1126        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1127        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1128        if (-f $projects_list) {
1129                open (my $fd , $projects_list);
1130                while (my $line = <$fd>) {
1131                        chomp $line;
1132                        my ($pr, $ow) = split ' ', $line;
1133                        $pr = unescape($pr);
1134                        $ow = unescape($ow);
1135                        if ($pr eq $project) {
1136                                $owner = to_utf8($ow);
1137                                last;
1138                        }
1139                }
1140                close $fd;
1141        }
1142        if (!defined $owner) {
1143                $owner = get_file_owner("$projectroot/$project");
1144        }
1145
1146        return $owner;
1147}
1148
1149sub git_get_last_activity {
1150        my ($path) = @_;
1151        my $fd;
1152
1153        $git_dir = "$projectroot/$path";
1154        open($fd, "-|", git_cmd(), 'for-each-ref',
1155             '--format=%(committer)',
1156             '--sort=-committerdate',
1157             '--count=1',
1158             'refs/heads') or return;
1159        my $most_recent = <$fd>;
1160        close $fd or return;
1161        if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1162                my $timestamp = $1;
1163                my $age = time - $timestamp;
1164                return ($age, age_string($age));
1165        }
1166}
1167
1168sub git_get_references {
1169        my $type = shift || "";
1170        my %refs;
1171        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
1172        # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
1173        open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
1174                ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
1175                or return;
1176
1177        while (my $line = <$fd>) {
1178                chomp $line;
1179                if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
1180                        if (defined $refs{$1}) {
1181                                push @{$refs{$1}}, $2;
1182                        } else {
1183                                $refs{$1} = [ $2 ];
1184                        }
1185                }
1186        }
1187        close $fd or return;
1188        return \%refs;
1189}
1190
1191sub git_get_rev_name_tags {
1192        my $hash = shift || return undef;
1193
1194        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1195                or return;
1196        my $name_rev = <$fd>;
1197        close $fd;
1198
1199        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1200                return $1;
1201        } else {
1202                # catches also '$hash undefined' output
1203                return undef;
1204        }
1205}
1206
1207## ----------------------------------------------------------------------
1208## parse to hash functions
1209
1210sub parse_date {
1211        my $epoch = shift;
1212        my $tz = shift || "-0000";
1213
1214        my %date;
1215        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1216        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1217        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1218        $date{'hour'} = $hour;
1219        $date{'minute'} = $min;
1220        $date{'mday'} = $mday;
1221        $date{'day'} = $days[$wday];
1222        $date{'month'} = $months[$mon];
1223        $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1224                             $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1225        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1226                             $mday, $months[$mon], $hour ,$min;
1227        $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
1228                             1900+$year, $mon, $mday, $hour ,$min, $sec;
1229
1230        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1231        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1232        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1233        $date{'hour_local'} = $hour;
1234        $date{'minute_local'} = $min;
1235        $date{'tz_local'} = $tz;
1236        $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
1237                                  1900+$year, $mon+1, $mday,
1238                                  $hour, $min, $sec, $tz);
1239        return %date;
1240}
1241
1242sub parse_tag {
1243        my $tag_id = shift;
1244        my %tag;
1245        my @comment;
1246
1247        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1248        $tag{'id'} = $tag_id;
1249        while (my $line = <$fd>) {
1250                chomp $line;
1251                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1252                        $tag{'object'} = $1;
1253                } elsif ($line =~ m/^type (.+)$/) {
1254                        $tag{'type'} = $1;
1255                } elsif ($line =~ m/^tag (.+)$/) {
1256                        $tag{'name'} = $1;
1257                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1258                        $tag{'author'} = $1;
1259                        $tag{'epoch'} = $2;
1260                        $tag{'tz'} = $3;
1261                } elsif ($line =~ m/--BEGIN/) {
1262                        push @comment, $line;
1263                        last;
1264                } elsif ($line eq "") {
1265                        last;
1266                }
1267        }
1268        push @comment, <$fd>;
1269        $tag{'comment'} = \@comment;
1270        close $fd or return;
1271        if (!defined $tag{'name'}) {
1272                return
1273        };
1274        return %tag
1275}
1276
1277sub parse_commit_text {
1278        my ($commit_text, $withparents) = @_;
1279        my @commit_lines = split '\n', $commit_text;
1280        my %co;
1281
1282        pop @commit_lines; # Remove '\0'
1283
1284        my $header = shift @commit_lines;
1285        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1286                return;
1287        }
1288        ($co{'id'}, my @parents) = split ' ', $header;
1289        while (my $line = shift @commit_lines) {
1290                last if $line eq "\n";
1291                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1292                        $co{'tree'} = $1;
1293                } elsif ((!defined $withparents) && ($line =~ m/^parent ([0-9a-fA-F]{40})$/)) {
1294                        push @parents, $1;
1295                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1296                        $co{'author'} = $1;
1297                        $co{'author_epoch'} = $2;
1298                        $co{'author_tz'} = $3;
1299                        if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
1300                                $co{'author_name'}  = $1;
1301                                $co{'author_email'} = $2;
1302                        } else {
1303                                $co{'author_name'} = $co{'author'};
1304                        }
1305                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1306                        $co{'committer'} = $1;
1307                        $co{'committer_epoch'} = $2;
1308                        $co{'committer_tz'} = $3;
1309                        $co{'committer_name'} = $co{'committer'};
1310                        if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
1311                                $co{'committer_name'}  = $1;
1312                                $co{'committer_email'} = $2;
1313                        } else {
1314                                $co{'committer_name'} = $co{'committer'};
1315                        }
1316                }
1317        }
1318        if (!defined $co{'tree'}) {
1319                return;
1320        };
1321        $co{'parents'} = \@parents;
1322        $co{'parent'} = $parents[0];
1323
1324        foreach my $title (@commit_lines) {
1325                $title =~ s/^    //;
1326                if ($title ne "") {
1327                        $co{'title'} = chop_str($title, 80, 5);
1328                        # remove leading stuff of merges to make the interesting part visible
1329                        if (length($title) > 50) {
1330                                $title =~ s/^Automatic //;
1331                                $title =~ s/^merge (of|with) /Merge ... /i;
1332                                if (length($title) > 50) {
1333                                        $title =~ s/(http|rsync):\/\///;
1334                                }
1335                                if (length($title) > 50) {
1336                                        $title =~ s/(master|www|rsync)\.//;
1337                                }
1338                                if (length($title) > 50) {
1339                                        $title =~ s/kernel.org:?//;
1340                                }
1341                                if (length($title) > 50) {
1342                                        $title =~ s/\/pub\/scm//;
1343                                }
1344                        }
1345                        $co{'title_short'} = chop_str($title, 50, 5);
1346                        last;
1347                }
1348        }
1349        if ($co{'title'} eq "") {
1350                $co{'title'} = $co{'title_short'} = '(no commit message)';
1351        }
1352        # remove added spaces
1353        foreach my $line (@commit_lines) {
1354                $line =~ s/^    //;
1355        }
1356        $co{'comment'} = \@commit_lines;
1357
1358        my $age = time - $co{'committer_epoch'};
1359        $co{'age'} = $age;
1360        $co{'age_string'} = age_string($age);
1361        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1362        if ($age > 60*60*24*7*2) {
1363                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1364                $co{'age_string_age'} = $co{'age_string'};
1365        } else {
1366                $co{'age_string_date'} = $co{'age_string'};
1367                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1368        }
1369        return %co;
1370}
1371
1372sub parse_commit {
1373        my ($commit_id) = @_;
1374        my %co;
1375
1376        local $/ = "\0";
1377
1378        open my $fd, "-|", git_cmd(), "rev-list",
1379                "--parents",
1380                "--header",
1381                "--max-count=1",
1382                $commit_id,
1383                "--",
1384                or die_error(undef, "Open git-rev-list failed");
1385        %co = parse_commit_text(<$fd>, 1);
1386        close $fd;
1387
1388        return %co;
1389}
1390
1391sub parse_commits {
1392        my ($commit_id, $maxcount, $skip, $arg, $filename) = @_;
1393        my @cos;
1394
1395        $maxcount ||= 1;
1396        $skip ||= 0;
1397
1398        local $/ = "\0";
1399
1400        open my $fd, "-|", git_cmd(), "rev-list",
1401                "--header",
1402                ($arg ? ($arg) : ()),
1403                ("--max-count=" . $maxcount),
1404                ("--skip=" . $skip),
1405                $commit_id,
1406                "--",
1407                ($filename ? ($filename) : ())
1408                or die_error(undef, "Open git-rev-list failed");
1409        while (my $line = <$fd>) {
1410                my %co = parse_commit_text($line);
1411                push @cos, \%co;
1412        }
1413        close $fd;
1414
1415        return wantarray ? @cos : \@cos;
1416}
1417
1418# parse ref from ref_file, given by ref_id, with given type
1419sub parse_ref {
1420        my $ref_file = shift;
1421        my $ref_id = shift;
1422        my $type = shift || git_get_type($ref_id);
1423        my %ref_item;
1424
1425        $ref_item{'type'} = $type;
1426        $ref_item{'id'} = $ref_id;
1427        $ref_item{'epoch'} = 0;
1428        $ref_item{'age'} = "unknown";
1429        if ($type eq "tag") {
1430                my %tag = parse_tag($ref_id);
1431                $ref_item{'comment'} = $tag{'comment'};
1432                if ($tag{'type'} eq "commit") {
1433                        my %co = parse_commit($tag{'object'});
1434                        $ref_item{'epoch'} = $co{'committer_epoch'};
1435                        $ref_item{'age'} = $co{'age_string'};
1436                } elsif (defined($tag{'epoch'})) {
1437                        my $age = time - $tag{'epoch'};
1438                        $ref_item{'epoch'} = $tag{'epoch'};
1439                        $ref_item{'age'} = age_string($age);
1440                }
1441                $ref_item{'reftype'} = $tag{'type'};
1442                $ref_item{'name'} = $tag{'name'};
1443                $ref_item{'refid'} = $tag{'object'};
1444        } elsif ($type eq "commit"){
1445                my %co = parse_commit($ref_id);
1446                $ref_item{'reftype'} = "commit";
1447                $ref_item{'name'} = $ref_file;
1448                $ref_item{'title'} = $co{'title'};
1449                $ref_item{'refid'} = $ref_id;
1450                $ref_item{'epoch'} = $co{'committer_epoch'};
1451                $ref_item{'age'} = $co{'age_string'};
1452        } else {
1453                $ref_item{'reftype'} = $type;
1454                $ref_item{'name'} = $ref_file;
1455                $ref_item{'refid'} = $ref_id;
1456        }
1457
1458        return %ref_item;
1459}
1460
1461# parse line of git-diff-tree "raw" output
1462sub parse_difftree_raw_line {
1463        my $line = shift;
1464        my %res;
1465
1466        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1467        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1468        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1469                $res{'from_mode'} = $1;
1470                $res{'to_mode'} = $2;
1471                $res{'from_id'} = $3;
1472                $res{'to_id'} = $4;
1473                $res{'status'} = $5;
1474                $res{'similarity'} = $6;
1475                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1476                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1477                } else {
1478                        $res{'file'} = unquote($7);
1479                }
1480        }
1481        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1482        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1483                $res{'commit'} = $1;
1484        }
1485
1486        return wantarray ? %res : \%res;
1487}
1488
1489# parse line of git-ls-tree output
1490sub parse_ls_tree_line ($;%) {
1491        my $line = shift;
1492        my %opts = @_;
1493        my %res;
1494
1495        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1496        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1497
1498        $res{'mode'} = $1;
1499        $res{'type'} = $2;
1500        $res{'hash'} = $3;
1501        if ($opts{'-z'}) {
1502                $res{'name'} = $4;
1503        } else {
1504                $res{'name'} = unquote($4);
1505        }
1506
1507        return wantarray ? %res : \%res;
1508}
1509
1510## ......................................................................
1511## parse to array of hashes functions
1512
1513sub git_get_heads_list {
1514        my $limit = shift;
1515        my @headslist;
1516
1517        open my $fd, '-|', git_cmd(), 'for-each-ref',
1518                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1519                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1520                'refs/heads'
1521                or return;
1522        while (my $line = <$fd>) {
1523                my %ref_item;
1524
1525                chomp $line;
1526                my ($refinfo, $committerinfo) = split(/\0/, $line);
1527                my ($hash, $name, $title) = split(' ', $refinfo, 3);
1528                my ($committer, $epoch, $tz) =
1529                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1530                $name =~ s!^refs/heads/!!;
1531
1532                $ref_item{'name'}  = $name;
1533                $ref_item{'id'}    = $hash;
1534                $ref_item{'title'} = $title || '(no commit message)';
1535                $ref_item{'epoch'} = $epoch;
1536                if ($epoch) {
1537                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1538                } else {
1539                        $ref_item{'age'} = "unknown";
1540                }
1541
1542                push @headslist, \%ref_item;
1543        }
1544        close $fd;
1545
1546        return wantarray ? @headslist : \@headslist;
1547}
1548
1549sub git_get_tags_list {
1550        my $limit = shift;
1551        my @tagslist;
1552
1553        open my $fd, '-|', git_cmd(), 'for-each-ref',
1554                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1555                '--format=%(objectname) %(objecttype) %(refname) '.
1556                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1557                'refs/tags'
1558                or return;
1559        while (my $line = <$fd>) {
1560                my %ref_item;
1561
1562                chomp $line;
1563                my ($refinfo, $creatorinfo) = split(/\0/, $line);
1564                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1565                my ($creator, $epoch, $tz) =
1566                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1567                $name =~ s!^refs/tags/!!;
1568
1569                $ref_item{'type'} = $type;
1570                $ref_item{'id'} = $id;
1571                $ref_item{'name'} = $name;
1572                if ($type eq "tag") {
1573                        $ref_item{'subject'} = $title;
1574                        $ref_item{'reftype'} = $reftype;
1575                        $ref_item{'refid'}   = $refid;
1576                } else {
1577                        $ref_item{'reftype'} = $type;
1578                        $ref_item{'refid'}   = $id;
1579                }
1580
1581                if ($type eq "tag" || $type eq "commit") {
1582                        $ref_item{'epoch'} = $epoch;
1583                        if ($epoch) {
1584                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1585                        } else {
1586                                $ref_item{'age'} = "unknown";
1587                        }
1588                }
1589
1590                push @tagslist, \%ref_item;
1591        }
1592        close $fd;
1593
1594        return wantarray ? @tagslist : \@tagslist;
1595}
1596
1597## ----------------------------------------------------------------------
1598## filesystem-related functions
1599
1600sub get_file_owner {
1601        my $path = shift;
1602
1603        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1604        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1605        if (!defined $gcos) {
1606                return undef;
1607        }
1608        my $owner = $gcos;
1609        $owner =~ s/[,;].*$//;
1610        return to_utf8($owner);
1611}
1612
1613## ......................................................................
1614## mimetype related functions
1615
1616sub mimetype_guess_file {
1617        my $filename = shift;
1618        my $mimemap = shift;
1619        -r $mimemap or return undef;
1620
1621        my %mimemap;
1622        open(MIME, $mimemap) or return undef;
1623        while (<MIME>) {
1624                next if m/^#/; # skip comments
1625                my ($mime, $exts) = split(/\t+/);
1626                if (defined $exts) {
1627                        my @exts = split(/\s+/, $exts);
1628                        foreach my $ext (@exts) {
1629                                $mimemap{$ext} = $mime;
1630                        }
1631                }
1632        }
1633        close(MIME);
1634
1635        $filename =~ /\.([^.]*)$/;
1636        return $mimemap{$1};
1637}
1638
1639sub mimetype_guess {
1640        my $filename = shift;
1641        my $mime;
1642        $filename =~ /\./ or return undef;
1643
1644        if ($mimetypes_file) {
1645                my $file = $mimetypes_file;
1646                if ($file !~ m!^/!) { # if it is relative path
1647                        # it is relative to project
1648                        $file = "$projectroot/$project/$file";
1649                }
1650                $mime = mimetype_guess_file($filename, $file);
1651        }
1652        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1653        return $mime;
1654}
1655
1656sub blob_mimetype {
1657        my $fd = shift;
1658        my $filename = shift;
1659
1660        if ($filename) {
1661                my $mime = mimetype_guess($filename);
1662                $mime and return $mime;
1663        }
1664
1665        # just in case
1666        return $default_blob_plain_mimetype unless $fd;
1667
1668        if (-T $fd) {
1669                return 'text/plain' .
1670                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1671        } elsif (! $filename) {
1672                return 'application/octet-stream';
1673        } elsif ($filename =~ m/\.png$/i) {
1674                return 'image/png';
1675        } elsif ($filename =~ m/\.gif$/i) {
1676                return 'image/gif';
1677        } elsif ($filename =~ m/\.jpe?g$/i) {
1678                return 'image/jpeg';
1679        } else {
1680                return 'application/octet-stream';
1681        }
1682}
1683
1684## ======================================================================
1685## functions printing HTML: header, footer, error page
1686
1687sub git_header_html {
1688        my $status = shift || "200 OK";
1689        my $expires = shift;
1690
1691        my $title = "$site_name";
1692        if (defined $project) {
1693                $title .= " - " . to_utf8($project);
1694                if (defined $action) {
1695                        $title .= "/$action";
1696                        if (defined $file_name) {
1697                                $title .= " - " . esc_path($file_name);
1698                                if ($action eq "tree" && $file_name !~ m|/$|) {
1699                                        $title .= "/";
1700                                }
1701                        }
1702                }
1703        }
1704        my $content_type;
1705        # require explicit support from the UA if we are to send the page as
1706        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1707        # we have to do this because MSIE sometimes globs '*/*', pretending to
1708        # support xhtml+xml but choking when it gets what it asked for.
1709        if (defined $cgi->http('HTTP_ACCEPT') &&
1710            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1711            $cgi->Accept('application/xhtml+xml') != 0) {
1712                $content_type = 'application/xhtml+xml';
1713        } else {
1714                $content_type = 'text/html';
1715        }
1716        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1717                           -status=> $status, -expires => $expires);
1718        my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : '';
1719        print <<EOF;
1720<?xml version="1.0" encoding="utf-8"?>
1721<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1722<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1723<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1724<!-- git core binaries version $git_version -->
1725<head>
1726<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1727<meta name="generator" content="gitweb/$version git/$git_version$mod_perl_version"/>
1728<meta name="robots" content="index, nofollow"/>
1729<title>$title</title>
1730EOF
1731# print out each stylesheet that exist
1732        if (defined $stylesheet) {
1733#provides backwards capability for those people who define style sheet in a config file
1734                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1735        } else {
1736                foreach my $stylesheet (@stylesheets) {
1737                        next unless $stylesheet;
1738                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1739                }
1740        }
1741        if (defined $project) {
1742                printf('<link rel="alternate" title="%s log RSS feed" '.
1743                       'href="%s" type="application/rss+xml" />'."\n",
1744                       esc_param($project), href(action=>"rss"));
1745                printf('<link rel="alternate" title="%s log Atom feed" '.
1746                       'href="%s" type="application/atom+xml" />'."\n",
1747                       esc_param($project), href(action=>"atom"));
1748        } else {
1749                printf('<link rel="alternate" title="%s projects list" '.
1750                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1751                       $site_name, href(project=>undef, action=>"project_index"));
1752                printf('<link rel="alternate" title="%s projects feeds" '.
1753                       'href="%s" type="text/x-opml"/>'."\n",
1754                       $site_name, href(project=>undef, action=>"opml"));
1755        }
1756        if (defined $favicon) {
1757                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1758        }
1759
1760        print "</head>\n" .
1761              "<body>\n";
1762
1763        if (-f $site_header) {
1764                open (my $fd, $site_header);
1765                print <$fd>;
1766                close $fd;
1767        }
1768
1769        print "<div class=\"page_header\">\n" .
1770              $cgi->a({-href => esc_url($logo_url),
1771                       -title => $logo_label},
1772                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1773        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1774        if (defined $project) {
1775                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1776                if (defined $action) {
1777                        print " / $action";
1778                }
1779                print "\n";
1780        }
1781        my ($have_search) = gitweb_check_feature('search');
1782        if ((defined $project) && ($have_search)) {
1783                if (!defined $searchtext) {
1784                        $searchtext = "";
1785                }
1786                my $search_hash;
1787                if (defined $hash_base) {
1788                        $search_hash = $hash_base;
1789                } elsif (defined $hash) {
1790                        $search_hash = $hash;
1791                } else {
1792                        $search_hash = "HEAD";
1793                }
1794                $cgi->param("a", "search");
1795                $cgi->param("h", $search_hash);
1796                $cgi->param("p", $project);
1797                print $cgi->startform(-method => "get", -action => $my_uri) .
1798                      "<div class=\"search\">\n" .
1799                      $cgi->hidden(-name => "p") . "\n" .
1800                      $cgi->hidden(-name => "a") . "\n" .
1801                      $cgi->hidden(-name => "h") . "\n" .
1802                      $cgi->popup_menu(-name => 'st', -default => 'commit',
1803                                       -values => ['commit', 'author', 'committer', 'pickaxe']) .
1804                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1805                      " search:\n",
1806                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1807                      "</div>" .
1808                      $cgi->end_form() . "\n";
1809        }
1810        print "</div>\n";
1811}
1812
1813sub git_footer_html {
1814        print "<div class=\"page_footer\">\n";
1815        if (defined $project) {
1816                my $descr = git_get_project_description($project);
1817                if (defined $descr) {
1818                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1819                }
1820                print $cgi->a({-href => href(action=>"rss"),
1821                              -class => "rss_logo"}, "RSS") . " ";
1822                print $cgi->a({-href => href(action=>"atom"),
1823                              -class => "rss_logo"}, "Atom") . "\n";
1824        } else {
1825                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1826                              -class => "rss_logo"}, "OPML") . " ";
1827                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1828                              -class => "rss_logo"}, "TXT") . "\n";
1829        }
1830        print "</div>\n" ;
1831
1832        if (-f $site_footer) {
1833                open (my $fd, $site_footer);
1834                print <$fd>;
1835                close $fd;
1836        }
1837
1838        print "</body>\n" .
1839              "</html>";
1840}
1841
1842sub die_error {
1843        my $status = shift || "403 Forbidden";
1844        my $error = shift || "Malformed query, file missing or permission denied";
1845
1846        git_header_html($status);
1847        print <<EOF;
1848<div class="page_body">
1849<br /><br />
1850$status - $error
1851<br />
1852</div>
1853EOF
1854        git_footer_html();
1855        exit;
1856}
1857
1858## ----------------------------------------------------------------------
1859## functions printing or outputting HTML: navigation
1860
1861sub git_print_page_nav {
1862        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1863        $extra = '' if !defined $extra; # pager or formats
1864
1865        my @navs = qw(summary shortlog log commit commitdiff tree);
1866        if ($suppress) {
1867                @navs = grep { $_ ne $suppress } @navs;
1868        }
1869
1870        my %arg = map { $_ => {action=>$_} } @navs;
1871        if (defined $head) {
1872                for (qw(commit commitdiff)) {
1873                        $arg{$_}{hash} = $head;
1874                }
1875                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1876                        for (qw(shortlog log)) {
1877                                $arg{$_}{hash} = $head;
1878                        }
1879                }
1880        }
1881        $arg{tree}{hash} = $treehead if defined $treehead;
1882        $arg{tree}{hash_base} = $treebase if defined $treebase;
1883
1884        print "<div class=\"page_nav\">\n" .
1885                (join " | ",
1886                 map { $_ eq $current ?
1887                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1888                 } @navs);
1889        print "<br/>\n$extra<br/>\n" .
1890              "</div>\n";
1891}
1892
1893sub format_paging_nav {
1894        my ($action, $hash, $head, $page, $nrevs) = @_;
1895        my $paging_nav;
1896
1897
1898        if ($hash ne $head || $page) {
1899                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1900        } else {
1901                $paging_nav .= "HEAD";
1902        }
1903
1904        if ($page > 0) {
1905                $paging_nav .= " &sdot; " .
1906                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1907                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1908        } else {
1909                $paging_nav .= " &sdot; prev";
1910        }
1911
1912        if ($nrevs >= (100 * ($page+1)-1)) {
1913                $paging_nav .= " &sdot; " .
1914                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1915                                 -accesskey => "n", -title => "Alt-n"}, "next");
1916        } else {
1917                $paging_nav .= " &sdot; next";
1918        }
1919
1920        return $paging_nav;
1921}
1922
1923## ......................................................................
1924## functions printing or outputting HTML: div
1925
1926sub git_print_header_div {
1927        my ($action, $title, $hash, $hash_base) = @_;
1928        my %args = ();
1929
1930        $args{action} = $action;
1931        $args{hash} = $hash if $hash;
1932        $args{hash_base} = $hash_base if $hash_base;
1933
1934        print "<div class=\"header\">\n" .
1935              $cgi->a({-href => href(%args), -class => "title"},
1936              $title ? $title : $action) .
1937              "\n</div>\n";
1938}
1939
1940#sub git_print_authorship (\%) {
1941sub git_print_authorship {
1942        my $co = shift;
1943
1944        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1945        print "<div class=\"author_date\">" .
1946              esc_html($co->{'author_name'}) .
1947              " [$ad{'rfc2822'}";
1948        if ($ad{'hour_local'} < 6) {
1949                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1950                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1951        } else {
1952                printf(" (%02d:%02d %s)",
1953                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1954        }
1955        print "]</div>\n";
1956}
1957
1958sub git_print_page_path {
1959        my $name = shift;
1960        my $type = shift;
1961        my $hb = shift;
1962
1963
1964        print "<div class=\"page_path\">";
1965        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1966                      -title => 'tree root'}, to_utf8("[$project]"));
1967        print " / ";
1968        if (defined $name) {
1969                my @dirname = split '/', $name;
1970                my $basename = pop @dirname;
1971                my $fullname = '';
1972
1973                foreach my $dir (@dirname) {
1974                        $fullname .= ($fullname ? '/' : '') . $dir;
1975                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1976                                                     hash_base=>$hb),
1977                                      -title => esc_html($fullname)}, esc_path($dir));
1978                        print " / ";
1979                }
1980                if (defined $type && $type eq 'blob') {
1981                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1982                                                     hash_base=>$hb),
1983                                      -title => esc_html($name)}, esc_path($basename));
1984                } elsif (defined $type && $type eq 'tree') {
1985                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1986                                                     hash_base=>$hb),
1987                                      -title => esc_html($name)}, esc_path($basename));
1988                        print " / ";
1989                } else {
1990                        print esc_path($basename);
1991                }
1992        }
1993        print "<br/></div>\n";
1994}
1995
1996# sub git_print_log (\@;%) {
1997sub git_print_log ($;%) {
1998        my $log = shift;
1999        my %opts = @_;
2000
2001        if ($opts{'-remove_title'}) {
2002                # remove title, i.e. first line of log
2003                shift @$log;
2004        }
2005        # remove leading empty lines
2006        while (defined $log->[0] && $log->[0] eq "") {
2007                shift @$log;
2008        }
2009
2010        # print log
2011        my $signoff = 0;
2012        my $empty = 0;
2013        foreach my $line (@$log) {
2014                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2015                        $signoff = 1;
2016                        $empty = 0;
2017                        if (! $opts{'-remove_signoff'}) {
2018                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2019                                next;
2020                        } else {
2021                                # remove signoff lines
2022                                next;
2023                        }
2024                } else {
2025                        $signoff = 0;
2026                }
2027
2028                # print only one empty line
2029                # do not print empty line after signoff
2030                if ($line eq "") {
2031                        next if ($empty || $signoff);
2032                        $empty = 1;
2033                } else {
2034                        $empty = 0;
2035                }
2036
2037                print format_log_line_html($line) . "<br/>\n";
2038        }
2039
2040        if ($opts{'-final_empty_line'}) {
2041                # end with single empty line
2042                print "<br/>\n" unless $empty;
2043        }
2044}
2045
2046# return link target (what link points to)
2047sub git_get_link_target {
2048        my $hash = shift;
2049        my $link_target;
2050
2051        # read link
2052        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2053                or return;
2054        {
2055                local $/;
2056                $link_target = <$fd>;
2057        }
2058        close $fd
2059                or return;
2060
2061        return $link_target;
2062}
2063
2064# given link target, and the directory (basedir) the link is in,
2065# return target of link relative to top directory (top tree);
2066# return undef if it is not possible (including absolute links).
2067sub normalize_link_target {
2068        my ($link_target, $basedir, $hash_base) = @_;
2069
2070        # we can normalize symlink target only if $hash_base is provided
2071        return unless $hash_base;
2072
2073        # absolute symlinks (beginning with '/') cannot be normalized
2074        return if (substr($link_target, 0, 1) eq '/');
2075
2076        # normalize link target to path from top (root) tree (dir)
2077        my $path;
2078        if ($basedir) {
2079                $path = $basedir . '/' . $link_target;
2080        } else {
2081                # we are in top (root) tree (dir)
2082                $path = $link_target;
2083        }
2084
2085        # remove //, /./, and /../
2086        my @path_parts;
2087        foreach my $part (split('/', $path)) {
2088                # discard '.' and ''
2089                next if (!$part || $part eq '.');
2090                # handle '..'
2091                if ($part eq '..') {
2092                        if (@path_parts) {
2093                                pop @path_parts;
2094                        } else {
2095                                # link leads outside repository (outside top dir)
2096                                return;
2097                        }
2098                } else {
2099                        push @path_parts, $part;
2100                }
2101        }
2102        $path = join('/', @path_parts);
2103
2104        return $path;
2105}
2106
2107# print tree entry (row of git_tree), but without encompassing <tr> element
2108sub git_print_tree_entry {
2109        my ($t, $basedir, $hash_base, $have_blame) = @_;
2110
2111        my %base_key = ();
2112        $base_key{'hash_base'} = $hash_base if defined $hash_base;
2113
2114        # The format of a table row is: mode list link.  Where mode is
2115        # the mode of the entry, list is the name of the entry, an href,
2116        # and link is the action links of the entry.
2117
2118        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
2119        if ($t->{'type'} eq "blob") {
2120                print "<td class=\"list\">" .
2121                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2122                                               file_name=>"$basedir$t->{'name'}", %base_key),
2123                                -class => "list"}, esc_path($t->{'name'}));
2124                if (S_ISLNK(oct $t->{'mode'})) {
2125                        my $link_target = git_get_link_target($t->{'hash'});
2126                        if ($link_target) {
2127                                my $norm_target = normalize_link_target($link_target, $basedir, $hash_base);
2128                                if (defined $norm_target) {
2129                                        print " -> " .
2130                                              $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
2131                                                                     file_name=>$norm_target),
2132                                                       -title => $norm_target}, esc_path($link_target));
2133                                } else {
2134                                        print " -> " . esc_path($link_target);
2135                                }
2136                        }
2137                }
2138                print "</td>\n";
2139                print "<td class=\"link\">";
2140                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2141                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2142                              "blob");
2143                if ($have_blame) {
2144                        print " | " .
2145                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
2146                                                     file_name=>"$basedir$t->{'name'}", %base_key)},
2147                                      "blame");
2148                }
2149                if (defined $hash_base) {
2150                        print " | " .
2151                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2152                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2153                                      "history");
2154                }
2155                print " | " .
2156                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2157                                               file_name=>"$basedir$t->{'name'}")},
2158                                "raw");
2159                print "</td>\n";
2160
2161        } elsif ($t->{'type'} eq "tree") {
2162                print "<td class=\"list\">";
2163                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2164                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2165                              esc_path($t->{'name'}));
2166                print "</td>\n";
2167                print "<td class=\"link\">";
2168                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2169                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2170                              "tree");
2171                if (defined $hash_base) {
2172                        print " | " .
2173                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2174                                                     file_name=>"$basedir$t->{'name'}")},
2175                                      "history");
2176                }
2177                print "</td>\n";
2178        }
2179}
2180
2181## ......................................................................
2182## functions printing large fragments of HTML
2183
2184sub git_difftree_body {
2185        my ($difftree, $hash, $parent) = @_;
2186        my ($have_blame) = gitweb_check_feature('blame');
2187        print "<div class=\"list_head\">\n";
2188        if ($#{$difftree} > 10) {
2189                print(($#{$difftree} + 1) . " files changed:\n");
2190        }
2191        print "</div>\n";
2192
2193        print "<table class=\"diff_tree\">\n";
2194        my $alternate = 1;
2195        my $patchno = 0;
2196        foreach my $line (@{$difftree}) {
2197                my %diff = parse_difftree_raw_line($line);
2198
2199                if ($alternate) {
2200                        print "<tr class=\"dark\">\n";
2201                } else {
2202                        print "<tr class=\"light\">\n";
2203                }
2204                $alternate ^= 1;
2205
2206                my ($to_mode_oct, $to_mode_str, $to_file_type);
2207                my ($from_mode_oct, $from_mode_str, $from_file_type);
2208                if ($diff{'to_mode'} ne ('0' x 6)) {
2209                        $to_mode_oct = oct $diff{'to_mode'};
2210                        if (S_ISREG($to_mode_oct)) { # only for regular file
2211                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2212                        }
2213                        $to_file_type = file_type($diff{'to_mode'});
2214                }
2215                if ($diff{'from_mode'} ne ('0' x 6)) {
2216                        $from_mode_oct = oct $diff{'from_mode'};
2217                        if (S_ISREG($to_mode_oct)) { # only for regular file
2218                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2219                        }
2220                        $from_file_type = file_type($diff{'from_mode'});
2221                }
2222
2223                if ($diff{'status'} eq "A") { # created
2224                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2225                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2226                        $mode_chng   .= "]</span>";
2227                        print "<td>";
2228                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2229                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2230                                      -class => "list"}, esc_path($diff{'file'}));
2231                        print "</td>\n";
2232                        print "<td>$mode_chng</td>\n";
2233                        print "<td class=\"link\">";
2234                        if ($action eq 'commitdiff') {
2235                                # link to patch
2236                                $patchno++;
2237                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2238                                print " | ";
2239                        }
2240                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2241                                                     hash_base=>$hash, file_name=>$diff{'file'})},
2242                                      "blob");
2243                        print "</td>\n";
2244
2245                } elsif ($diff{'status'} eq "D") { # deleted
2246                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2247                        print "<td>";
2248                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2249                                                     hash_base=>$parent, file_name=>$diff{'file'}),
2250                                       -class => "list"}, esc_path($diff{'file'}));
2251                        print "</td>\n";
2252                        print "<td>$mode_chng</td>\n";
2253                        print "<td class=\"link\">";
2254                        if ($action eq 'commitdiff') {
2255                                # link to patch
2256                                $patchno++;
2257                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2258                                print " | ";
2259                        }
2260                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2261                                                     hash_base=>$parent, file_name=>$diff{'file'})},
2262                                      "blob") . " | ";
2263                        if ($have_blame) {
2264                                print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2265                                                             file_name=>$diff{'file'})},
2266                                              "blame") . " | ";
2267                        }
2268                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2269                                                     file_name=>$diff{'file'})},
2270                                      "history");
2271                        print "</td>\n";
2272
2273                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
2274                        my $mode_chnge = "";
2275                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2276                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
2277                                if ($from_file_type ne $to_file_type) {
2278                                        $mode_chnge .= " from $from_file_type to $to_file_type";
2279                                }
2280                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
2281                                        if ($from_mode_str && $to_mode_str) {
2282                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2283                                        } elsif ($to_mode_str) {
2284                                                $mode_chnge .= " mode: $to_mode_str";
2285                                        }
2286                                }
2287                                $mode_chnge .= "]</span>\n";
2288                        }
2289                        print "<td>";
2290                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2291                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2292                                      -class => "list"}, esc_path($diff{'file'}));
2293                        print "</td>\n";
2294                        print "<td>$mode_chnge</td>\n";
2295                        print "<td class=\"link\">";
2296                        if ($action eq 'commitdiff') {
2297                                # link to patch
2298                                $patchno++;
2299                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2300                                      " | ";
2301                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2302                                # "commit" view and modified file (not onlu mode changed)
2303                                print $cgi->a({-href => href(action=>"blobdiff",
2304                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2305                                                             hash_base=>$hash, hash_parent_base=>$parent,
2306                                                             file_name=>$diff{'file'})},
2307                                              "diff") .
2308                                      " | ";
2309                        }
2310                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2311                                                     hash_base=>$hash, file_name=>$diff{'file'})},
2312                                       "blob") . " | ";
2313                        if ($have_blame) {
2314                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2315                                                             file_name=>$diff{'file'})},
2316                                              "blame") . " | ";
2317                        }
2318                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2319                                                     file_name=>$diff{'file'})},
2320                                      "history");
2321                        print "</td>\n";
2322
2323                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
2324                        my %status_name = ('R' => 'moved', 'C' => 'copied');
2325                        my $nstatus = $status_name{$diff{'status'}};
2326                        my $mode_chng = "";
2327                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2328                                # mode also for directories, so we cannot use $to_mode_str
2329                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2330                        }
2331                        print "<td>" .
2332                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2333                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
2334                                      -class => "list"}, esc_path($diff{'to_file'})) . "</td>\n" .
2335                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2336                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2337                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
2338                                      -class => "list"}, esc_path($diff{'from_file'})) .
2339                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2340                              "<td class=\"link\">";
2341                        if ($action eq 'commitdiff') {
2342                                # link to patch
2343                                $patchno++;
2344                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2345                                      " | ";
2346                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2347                                # "commit" view and modified file (not only pure rename or copy)
2348                                print $cgi->a({-href => href(action=>"blobdiff",
2349                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2350                                                             hash_base=>$hash, hash_parent_base=>$parent,
2351                                                             file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2352                                              "diff") .
2353                                      " | ";
2354                        }
2355                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2356                                                     hash_base=>$parent, file_name=>$diff{'to_file'})},
2357                                      "blob") . " | ";
2358                        if ($have_blame) {
2359                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2360                                                             file_name=>$diff{'to_file'})},
2361                                              "blame") . " | ";
2362                        }
2363                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2364                                                    file_name=>$diff{'to_file'})},
2365                                      "history");
2366                        print "</td>\n";
2367
2368                } # we should not encounter Unmerged (U) or Unknown (X) status
2369                print "</tr>\n";
2370        }
2371        print "</table>\n";
2372}
2373
2374sub git_patchset_body {
2375        my ($fd, $difftree, $hash, $hash_parent) = @_;
2376
2377        my $patch_idx = 0;
2378        my $patch_line;
2379        my $diffinfo;
2380        my (%from, %to);
2381
2382        print "<div class=\"patchset\">\n";
2383
2384        # skip to first patch
2385        while ($patch_line = <$fd>) {
2386                chomp $patch_line;
2387
2388                last if ($patch_line =~ m/^diff /);
2389        }
2390
2391 PATCH:
2392        while ($patch_line) {
2393                my @diff_header;
2394                my ($from_id, $to_id);
2395
2396                # git diff header
2397                #assert($patch_line =~ m/^diff /) if DEBUG;
2398                #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
2399                push @diff_header, $patch_line;
2400
2401                # extended diff header
2402        EXTENDED_HEADER:
2403                while ($patch_line = <$fd>) {
2404                        chomp $patch_line;
2405
2406                        last EXTENDED_HEADER if ($patch_line =~ m/^--- |^diff /);
2407
2408                        if ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
2409                                $from_id = $1;
2410                                $to_id   = $2;
2411                        }
2412
2413                        push @diff_header, $patch_line;
2414                }
2415                my $last_patch_line = $patch_line;
2416
2417                # check if current patch belong to current raw line
2418                # and parse raw git-diff line if needed
2419                if (defined $diffinfo &&
2420                    $diffinfo->{'from_id'} eq $from_id &&
2421                    $diffinfo->{'to_id'}   eq $to_id) {
2422                        # this is split patch
2423                        print "<div class=\"patch cont\">\n";
2424                } else {
2425                        # advance raw git-diff output if needed
2426                        $patch_idx++ if defined $diffinfo;
2427
2428                        # read and prepare patch information
2429                        if (ref($difftree->[$patch_idx]) eq "HASH") {
2430                                # pre-parsed (or generated by hand)
2431                                $diffinfo = $difftree->[$patch_idx];
2432                        } else {
2433                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2434                        }
2435                        $from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2436                        $to{'file'}   = $diffinfo->{'to_file'}   || $diffinfo->{'file'};
2437                        if ($diffinfo->{'status'} ne "A") { # not new (added) file
2438                                $from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2439                                                     hash=>$diffinfo->{'from_id'},
2440                                                     file_name=>$from{'file'});
2441                        } else {
2442                                delete $from{'href'};
2443                        }
2444                        if ($diffinfo->{'status'} ne "D") { # not deleted file
2445                                $to{'href'} = href(action=>"blob", hash_base=>$hash,
2446                                                   hash=>$diffinfo->{'to_id'},
2447                                                   file_name=>$to{'file'});
2448                        } else {
2449                                delete $to{'href'};
2450                        }
2451                        # this is first patch for raw difftree line with $patch_idx index
2452                        # we index @$difftree array from 0, but number patches from 1
2453                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2454                }
2455
2456                # print "git diff" header
2457                $patch_line = shift @diff_header;
2458                $patch_line =~ s!^(diff (.*?) )"?a/.*$!$1!;
2459                if ($from{'href'}) {
2460                        $patch_line .= $cgi->a({-href => $from{'href'}, -class => "path"},
2461                                               'a/' . esc_path($from{'file'}));
2462                } else { # file was added
2463                        $patch_line .= 'a/' . esc_path($from{'file'});
2464                }
2465                $patch_line .= ' ';
2466                if ($to{'href'}) {
2467                        $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2468                                               'b/' . esc_path($to{'file'}));
2469                } else { # file was deleted
2470                        $patch_line .= 'b/' . esc_path($to{'file'});
2471                }
2472                print "<div class=\"diff header\">$patch_line</div>\n";
2473
2474                # print extended diff header
2475                print "<div class=\"diff extended_header\">\n" if (@diff_header > 0);
2476        EXTENDED_HEADER:
2477                foreach $patch_line (@diff_header) {
2478                        # match <path>
2479                        if ($patch_line =~ s!^((copy|rename) from ).*$!$1! && $from{'href'}) {
2480                                $patch_line .= $cgi->a({-href=>$from{'href'}, -class=>"path"},
2481                                                       esc_path($from{'file'}));
2482                        }
2483                        if ($patch_line =~ s!^((copy|rename) to ).*$!$1! && $to{'href'}) {
2484                                $patch_line .= $cgi->a({-href=>$to{'href'}, -class=>"path"},
2485                                                       esc_path($to{'file'}));
2486                        }
2487                        # match <mode>
2488                        if ($patch_line =~ m/\s(\d{6})$/) {
2489                                $patch_line .= '<span class="info"> (' .
2490                                               file_type_long($1) .
2491                                               ')</span>';
2492                        }
2493                        # match <hash>
2494                        if ($patch_line =~ m/^index/) {
2495                                my ($from_link, $to_link);
2496                                if ($from{'href'}) {
2497                                        $from_link = $cgi->a({-href=>$from{'href'}, -class=>"hash"},
2498                                                             substr($diffinfo->{'from_id'},0,7));
2499                                } else {
2500                                        $from_link = '0' x 7;
2501                                }
2502                                if ($to{'href'}) {
2503                                        $to_link = $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2504                                                           substr($diffinfo->{'to_id'},0,7));
2505                                } else {
2506                                        $to_link = '0' x 7;
2507                                }
2508                                #affirm {
2509                                #       my ($from_hash, $to_hash) =
2510                                #               ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/);
2511                                #       my ($from_id, $to_id) =
2512                                #               ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2513                                #       ($from_hash eq $from_id) && ($to_hash eq $to_id);
2514                                #} if DEBUG;
2515                                my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2516                                $patch_line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
2517                        }
2518                        print $patch_line . "<br/>\n";
2519                }
2520                print "</div>\n"  if (@diff_header > 0); # class="diff extended_header"
2521
2522                # from-file/to-file diff header
2523                $patch_line = $last_patch_line;
2524                if (! $patch_line) {
2525                        print "</div>\n"; # class="patch"
2526                        last PATCH;
2527                }
2528                next PATCH if ($patch_line =~ m/^diff /);
2529                #assert($patch_line =~ m/^---/) if DEBUG;
2530                if ($from{'href'} && $patch_line =~ m!^--- "?a/!) {
2531                        $patch_line = '--- a/' .
2532                                      $cgi->a({-href=>$from{'href'}, -class=>"path"},
2533                                              esc_path($from{'file'}));
2534                }
2535                print "<div class=\"diff from_file\">$patch_line</div>\n";
2536
2537                $patch_line = <$fd>;
2538                chomp $patch_line;
2539
2540                #assert($patch_line =~ m/^+++/) if DEBUG;
2541                if ($to{'href'} && $patch_line =~ m!^\+\+\+ "?b/!) {
2542                        $patch_line = '+++ b/' .
2543                                      $cgi->a({-href=>$to{'href'}, -class=>"path"},
2544                                              esc_path($to{'file'}));
2545                }
2546                print "<div class=\"diff to_file\">$patch_line</div>\n";
2547
2548                # the patch itself
2549        LINE:
2550                while ($patch_line = <$fd>) {
2551                        chomp $patch_line;
2552
2553                        next PATCH if ($patch_line =~ m/^diff /);
2554
2555                        print format_diff_line($patch_line, \%from, \%to);
2556                }
2557
2558        } continue {
2559                print "</div>\n"; # class="patch"
2560        }
2561
2562        print "</div>\n"; # class="patchset"
2563}
2564
2565# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2566
2567sub git_project_list_body {
2568        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2569
2570        my ($check_forks) = gitweb_check_feature('forks');
2571
2572        my @projects;
2573        foreach my $pr (@$projlist) {
2574                my (@aa) = git_get_last_activity($pr->{'path'});
2575                unless (@aa) {
2576                        next;
2577                }
2578                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2579                if (!defined $pr->{'descr'}) {
2580                        my $descr = git_get_project_description($pr->{'path'}) || "";
2581                        $pr->{'descr_long'} = to_utf8($descr);
2582                        $pr->{'descr'} = chop_str($descr, 25, 5);
2583                }
2584                if (!defined $pr->{'owner'}) {
2585                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2586                }
2587                if ($check_forks) {
2588                        my $pname = $pr->{'path'};
2589                        if (($pname =~ s/\.git$//) &&
2590                            ($pname !~ /\/$/) &&
2591                            (-d "$projectroot/$pname")) {
2592                                $pr->{'forks'} = "-d $projectroot/$pname";
2593                        }
2594                        else {
2595                                $pr->{'forks'} = 0;
2596                        }
2597                }
2598                push @projects, $pr;
2599        }
2600
2601        $order ||= "project";
2602        $from = 0 unless defined $from;
2603        $to = $#projects if (!defined $to || $#projects < $to);
2604
2605        print "<table class=\"project_list\">\n";
2606        unless ($no_header) {
2607                print "<tr>\n";
2608                if ($check_forks) {
2609                        print "<th></th>\n";
2610                }
2611                if ($order eq "project") {
2612                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2613                        print "<th>Project</th>\n";
2614                } else {
2615                        print "<th>" .
2616                              $cgi->a({-href => href(project=>undef, order=>'project'),
2617                                       -class => "header"}, "Project") .
2618                              "</th>\n";
2619                }
2620                if ($order eq "descr") {
2621                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2622                        print "<th>Description</th>\n";
2623                } else {
2624                        print "<th>" .
2625                              $cgi->a({-href => href(project=>undef, order=>'descr'),
2626                                       -class => "header"}, "Description") .
2627                              "</th>\n";
2628                }
2629                if ($order eq "owner") {
2630                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2631                        print "<th>Owner</th>\n";
2632                } else {
2633                        print "<th>" .
2634                              $cgi->a({-href => href(project=>undef, order=>'owner'),
2635                                       -class => "header"}, "Owner") .
2636                              "</th>\n";
2637                }
2638                if ($order eq "age") {
2639                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2640                        print "<th>Last Change</th>\n";
2641                } else {
2642                        print "<th>" .
2643                              $cgi->a({-href => href(project=>undef, order=>'age'),
2644                                       -class => "header"}, "Last Change") .
2645                              "</th>\n";
2646                }
2647                print "<th></th>\n" .
2648                      "</tr>\n";
2649        }
2650        my $alternate = 1;
2651        for (my $i = $from; $i <= $to; $i++) {
2652                my $pr = $projects[$i];
2653                if ($alternate) {
2654                        print "<tr class=\"dark\">\n";
2655                } else {
2656                        print "<tr class=\"light\">\n";
2657                }
2658                $alternate ^= 1;
2659                if ($check_forks) {
2660                        print "<td>";
2661                        if ($pr->{'forks'}) {
2662                                print "<!-- $pr->{'forks'} -->\n";
2663                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2664                        }
2665                        print "</td>\n";
2666                }
2667                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2668                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2669                      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2670                                        -class => "list", -title => $pr->{'descr_long'}},
2671                                        esc_html($pr->{'descr'})) . "</td>\n" .
2672                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2673                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2674                      $pr->{'age_string'} . "</td>\n" .
2675                      "<td class=\"link\">" .
2676                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2677                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2678                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2679                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2680                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
2681                      "</td>\n" .
2682                      "</tr>\n";
2683        }
2684        if (defined $extra) {
2685                print "<tr>\n";
2686                if ($check_forks) {
2687                        print "<td></td>\n";
2688                }
2689                print "<td colspan=\"5\">$extra</td>\n" .
2690                      "</tr>\n";
2691        }
2692        print "</table>\n";
2693}
2694
2695sub git_shortlog_body {
2696        # uses global variable $project
2697        my ($commitlist, $from, $to, $refs, $extra) = @_;
2698
2699        my $have_snapshot = gitweb_have_snapshot();
2700
2701        $from = 0 unless defined $from;
2702        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
2703
2704        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2705        my $alternate = 1;
2706        for (my $i = $from; $i <= $to; $i++) {
2707                my %co = %{$commitlist->[$i]};
2708                my $commit = $co{'id'};
2709                my $ref = format_ref_marker($refs, $commit);
2710                if ($alternate) {
2711                        print "<tr class=\"dark\">\n";
2712                } else {
2713                        print "<tr class=\"light\">\n";
2714                }
2715                $alternate ^= 1;
2716                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2717                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2718                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2719                      "<td>";
2720                print format_subject_html($co{'title'}, $co{'title_short'},
2721                                          href(action=>"commit", hash=>$commit), $ref);
2722                print "</td>\n" .
2723                      "<td class=\"link\">" .
2724                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2725                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2726                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2727                if ($have_snapshot) {
2728                        print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2729                }
2730                print "</td>\n" .
2731                      "</tr>\n";
2732        }
2733        if (defined $extra) {
2734                print "<tr>\n" .
2735                      "<td colspan=\"4\">$extra</td>\n" .
2736                      "</tr>\n";
2737        }
2738        print "</table>\n";
2739}
2740
2741sub git_history_body {
2742        # Warning: assumes constant type (blob or tree) during history
2743        my ($commitlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2744
2745        $from = 0 unless defined $from;
2746        $to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
2747
2748        print "<table class=\"history\" cellspacing=\"0\">\n";
2749        my $alternate = 1;
2750        for (my $i = $from; $i <= $to; $i++) {
2751                my %co = %{$commitlist->[$i]};
2752                if (!%co) {
2753                        next;
2754                }
2755                my $commit = $co{'id'};
2756
2757                my $ref = format_ref_marker($refs, $commit);
2758
2759                if ($alternate) {
2760                        print "<tr class=\"dark\">\n";
2761                } else {
2762                        print "<tr class=\"light\">\n";
2763                }
2764                $alternate ^= 1;
2765                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2766                      # shortlog uses      chop_str($co{'author_name'}, 10)
2767                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2768                      "<td>";
2769                # originally git_history used chop_str($co{'title'}, 50)
2770                print format_subject_html($co{'title'}, $co{'title_short'},
2771                                          href(action=>"commit", hash=>$commit), $ref);
2772                print "</td>\n" .
2773                      "<td class=\"link\">" .
2774                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2775                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2776
2777                if ($ftype eq 'blob') {
2778                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2779                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2780                        if (defined $blob_current && defined $blob_parent &&
2781                                        $blob_current ne $blob_parent) {
2782                                print " | " .
2783                                        $cgi->a({-href => href(action=>"blobdiff",
2784                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2785                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2786                                                               file_name=>$file_name)},
2787                                                "diff to current");
2788                        }
2789                }
2790                print "</td>\n" .
2791                      "</tr>\n";
2792        }
2793        if (defined $extra) {
2794                print "<tr>\n" .
2795                      "<td colspan=\"4\">$extra</td>\n" .
2796                      "</tr>\n";
2797        }
2798        print "</table>\n";
2799}
2800
2801sub git_tags_body {
2802        # uses global variable $project
2803        my ($taglist, $from, $to, $extra) = @_;
2804        $from = 0 unless defined $from;
2805        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2806
2807        print "<table class=\"tags\" cellspacing=\"0\">\n";
2808        my $alternate = 1;
2809        for (my $i = $from; $i <= $to; $i++) {
2810                my $entry = $taglist->[$i];
2811                my %tag = %$entry;
2812                my $comment = $tag{'subject'};
2813                my $comment_short;
2814                if (defined $comment) {
2815                        $comment_short = chop_str($comment, 30, 5);
2816                }
2817                if ($alternate) {
2818                        print "<tr class=\"dark\">\n";
2819                } else {
2820                        print "<tr class=\"light\">\n";
2821                }
2822                $alternate ^= 1;
2823                if (defined $tag{'age'}) {
2824                        print "<td><i>$tag{'age'}</i></td>\n";
2825                } else {
2826                        print "<td></td>\n";
2827                }
2828                print "<td>" .
2829                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2830                               -class => "list name"}, esc_html($tag{'name'})) .
2831                      "</td>\n" .
2832                      "<td>";
2833                if (defined $comment) {
2834                        print format_subject_html($comment, $comment_short,
2835                                                  href(action=>"tag", hash=>$tag{'id'}));
2836                }
2837                print "</td>\n" .
2838                      "<td class=\"selflink\">";
2839                if ($tag{'type'} eq "tag") {
2840                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2841                } else {
2842                        print "&nbsp;";
2843                }
2844                print "</td>\n" .
2845                      "<td class=\"link\">" . " | " .
2846                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2847                if ($tag{'reftype'} eq "commit") {
2848                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2849                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
2850                } elsif ($tag{'reftype'} eq "blob") {
2851                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2852                }
2853                print "</td>\n" .
2854                      "</tr>";
2855        }
2856        if (defined $extra) {
2857                print "<tr>\n" .
2858                      "<td colspan=\"5\">$extra</td>\n" .
2859                      "</tr>\n";
2860        }
2861        print "</table>\n";
2862}
2863
2864sub git_heads_body {
2865        # uses global variable $project
2866        my ($headlist, $head, $from, $to, $extra) = @_;
2867        $from = 0 unless defined $from;
2868        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2869
2870        print "<table class=\"heads\" cellspacing=\"0\">\n";
2871        my $alternate = 1;
2872        for (my $i = $from; $i <= $to; $i++) {
2873                my $entry = $headlist->[$i];
2874                my %ref = %$entry;
2875                my $curr = $ref{'id'} eq $head;
2876                if ($alternate) {
2877                        print "<tr class=\"dark\">\n";
2878                } else {
2879                        print "<tr class=\"light\">\n";
2880                }
2881                $alternate ^= 1;
2882                print "<td><i>$ref{'age'}</i></td>\n" .
2883                      ($curr ? "<td class=\"current_head\">" : "<td>") .
2884                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
2885                               -class => "list name"},esc_html($ref{'name'})) .
2886                      "</td>\n" .
2887                      "<td class=\"link\">" .
2888                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
2889                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
2890                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
2891                      "</td>\n" .
2892                      "</tr>";
2893        }
2894        if (defined $extra) {
2895                print "<tr>\n" .
2896                      "<td colspan=\"3\">$extra</td>\n" .
2897                      "</tr>\n";
2898        }
2899        print "</table>\n";
2900}
2901
2902sub git_search_grep_body {
2903        my ($commitlist, $from, $to, $extra) = @_;
2904        $from = 0 unless defined $from;
2905        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
2906
2907        print "<table class=\"grep\" cellspacing=\"0\">\n";
2908        my $alternate = 1;
2909        for (my $i = $from; $i <= $to; $i++) {
2910                my %co = %{$commitlist->[$i]};
2911                if (!%co) {
2912                        next;
2913                }
2914                my $commit = $co{'id'};
2915                if ($alternate) {
2916                        print "<tr class=\"dark\">\n";
2917                } else {
2918                        print "<tr class=\"light\">\n";
2919                }
2920                $alternate ^= 1;
2921                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2922                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2923                      "<td>" .
2924                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
2925                               esc_html(chop_str($co{'title'}, 50)) . "<br/>");
2926                my $comment = $co{'comment'};
2927                foreach my $line (@$comment) {
2928                        if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2929                                my $lead = esc_html($1) || "";
2930                                $lead = chop_str($lead, 30, 10);
2931                                my $match = esc_html($2) || "";
2932                                my $trail = esc_html($3) || "";
2933                                $trail = chop_str($trail, 30, 10);
2934                                my $text = "$lead<span class=\"match\">$match</span>$trail";
2935                                print chop_str($text, 80, 5) . "<br/>\n";
2936                        }
2937                }
2938                print "</td>\n" .
2939                      "<td class=\"link\">" .
2940                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2941                      " | " .
2942                      $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2943                print "</td>\n" .
2944                      "</tr>\n";
2945        }
2946        if (defined $extra) {
2947                print "<tr>\n" .
2948                      "<td colspan=\"3\">$extra</td>\n" .
2949                      "</tr>\n";
2950        }
2951        print "</table>\n";
2952}
2953
2954## ======================================================================
2955## ======================================================================
2956## actions
2957
2958sub git_project_list {
2959        my $order = $cgi->param('o');
2960        if (defined $order && $order !~ m/project|descr|owner|age/) {
2961                die_error(undef, "Unknown order parameter");
2962        }
2963
2964        my @list = git_get_projects_list();
2965        if (!@list) {
2966                die_error(undef, "No projects found");
2967        }
2968
2969        git_header_html();
2970        if (-f $home_text) {
2971                print "<div class=\"index_include\">\n";
2972                open (my $fd, $home_text);
2973                print <$fd>;
2974                close $fd;
2975                print "</div>\n";
2976        }
2977        git_project_list_body(\@list, $order);
2978        git_footer_html();
2979}
2980
2981sub git_forks {
2982        my $order = $cgi->param('o');
2983        if (defined $order && $order !~ m/project|descr|owner|age/) {
2984                die_error(undef, "Unknown order parameter");
2985        }
2986
2987        my @list = git_get_projects_list($project);
2988        if (!@list) {
2989                die_error(undef, "No forks found");
2990        }
2991
2992        git_header_html();
2993        git_print_page_nav('','');
2994        git_print_header_div('summary', "$project forks");
2995        git_project_list_body(\@list, $order);
2996        git_footer_html();
2997}
2998
2999sub git_project_index {
3000        my @projects = git_get_projects_list($project);
3001
3002        print $cgi->header(
3003                -type => 'text/plain',
3004                -charset => 'utf-8',
3005                -content_disposition => 'inline; filename="index.aux"');
3006
3007        foreach my $pr (@projects) {
3008                if (!exists $pr->{'owner'}) {
3009                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}");
3010                }
3011
3012                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
3013                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
3014                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3015                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3016                $path  =~ s/ /\+/g;
3017                $owner =~ s/ /\+/g;
3018
3019                print "$path $owner\n";
3020        }
3021}
3022
3023sub git_summary {
3024        my $descr = git_get_project_description($project) || "none";
3025        my %co = parse_commit("HEAD");
3026        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3027        my $head = $co{'id'};
3028
3029        my $owner = git_get_project_owner($project);
3030
3031        my $refs = git_get_references();
3032        # These get_*_list functions return one more to allow us to see if
3033        # there are more ...
3034        my @taglist  = git_get_tags_list(16);
3035        my @headlist = git_get_heads_list(16);
3036        my @forklist;
3037        my ($check_forks) = gitweb_check_feature('forks');
3038
3039        if ($check_forks) {
3040                @forklist = git_get_projects_list($project);
3041        }
3042
3043        git_header_html();
3044        git_print_page_nav('summary','', $head);
3045
3046        print "<div class=\"title\">&nbsp;</div>\n";
3047        print "<table cellspacing=\"0\">\n" .
3048              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
3049              "<tr><td>owner</td><td>$owner</td></tr>\n" .
3050              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
3051        # use per project git URL list in $projectroot/$project/cloneurl
3052        # or make project git URL from git base URL and project name
3053        my $url_tag = "URL";
3054        my @url_list = git_get_project_url_list($project);
3055        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
3056        foreach my $git_url (@url_list) {
3057                next unless $git_url;
3058                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
3059                $url_tag = "";
3060        }
3061        print "</table>\n";
3062
3063        if (-s "$projectroot/$project/README.html") {
3064                if (open my $fd, "$projectroot/$project/README.html") {
3065                        print "<div class=\"title\">readme</div>\n";
3066                        print $_ while (<$fd>);
3067                        close $fd;
3068                }
3069        }
3070
3071        # we need to request one more than 16 (0..15) to check if
3072        # those 16 are all
3073        my @commitlist = parse_commits($head, 17);
3074        git_print_header_div('shortlog');
3075        git_shortlog_body(\@commitlist, 0, 15, $refs,
3076                          $#commitlist <=  15 ? undef :
3077                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
3078
3079        if (@taglist) {
3080                git_print_header_div('tags');
3081                git_tags_body(\@taglist, 0, 15,
3082                              $#taglist <=  15 ? undef :
3083                              $cgi->a({-href => href(action=>"tags")}, "..."));
3084        }
3085
3086        if (@headlist) {
3087                git_print_header_div('heads');
3088                git_heads_body(\@headlist, $head, 0, 15,
3089                               $#headlist <= 15 ? undef :
3090                               $cgi->a({-href => href(action=>"heads")}, "..."));
3091        }
3092
3093        if (@forklist) {
3094                git_print_header_div('forks');
3095                git_project_list_body(\@forklist, undef, 0, 15,
3096                                      $#forklist <= 15 ? undef :
3097                                      $cgi->a({-href => href(action=>"forks")}, "..."),
3098                                      'noheader');
3099        }
3100
3101        git_footer_html();
3102}
3103
3104sub git_tag {
3105        my $head = git_get_head_hash($project);
3106        git_header_html();
3107        git_print_page_nav('','', $head,undef,$head);
3108        my %tag = parse_tag($hash);
3109        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
3110        print "<div class=\"title_text\">\n" .
3111              "<table cellspacing=\"0\">\n" .
3112              "<tr>\n" .
3113              "<td>object</td>\n" .
3114              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3115                               $tag{'object'}) . "</td>\n" .
3116              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3117                                              $tag{'type'}) . "</td>\n" .
3118              "</tr>\n";
3119        if (defined($tag{'author'})) {
3120                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
3121                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
3122                print "<tr><td></td><td>" . $ad{'rfc2822'} .
3123                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
3124                        "</td></tr>\n";
3125        }
3126        print "</table>\n\n" .
3127              "</div>\n";
3128        print "<div class=\"page_body\">";
3129        my $comment = $tag{'comment'};
3130        foreach my $line (@$comment) {
3131                chomp $line;
3132                print esc_html($line, -nbsp=>1) . "<br/>\n";
3133        }
3134        print "</div>\n";
3135        git_footer_html();
3136}
3137
3138sub git_blame2 {
3139        my $fd;
3140        my $ftype;
3141
3142        my ($have_blame) = gitweb_check_feature('blame');
3143        if (!$have_blame) {
3144                die_error('403 Permission denied', "Permission denied");
3145        }
3146        die_error('404 Not Found', "File name not defined") if (!$file_name);
3147        $hash_base ||= git_get_head_hash($project);
3148        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3149        my %co = parse_commit($hash_base)
3150                or die_error(undef, "Reading commit failed");
3151        if (!defined $hash) {
3152                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3153                        or die_error(undef, "Error looking up file");
3154        }
3155        $ftype = git_get_type($hash);
3156        if ($ftype !~ "blob") {
3157                die_error("400 Bad Request", "Object is not a blob");
3158        }
3159        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
3160              $file_name, $hash_base)
3161                or die_error(undef, "Open git-blame failed");
3162        git_header_html();
3163        my $formats_nav =
3164                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3165                        "blob") .
3166                " | " .
3167                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3168                        "history") .
3169                " | " .
3170                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3171                        "HEAD");
3172        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3173        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3174        git_print_page_path($file_name, $ftype, $hash_base);
3175        my @rev_color = (qw(light2 dark2));
3176        my $num_colors = scalar(@rev_color);
3177        my $current_color = 0;
3178        my $last_rev;
3179        print <<HTML;
3180<div class="page_body">
3181<table class="blame">
3182<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
3183HTML
3184        my %metainfo = ();
3185        while (1) {
3186                $_ = <$fd>;
3187                last unless defined $_;
3188                my ($full_rev, $orig_lineno, $lineno, $group_size) =
3189                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
3190                if (!exists $metainfo{$full_rev}) {
3191                        $metainfo{$full_rev} = {};
3192                }
3193                my $meta = $metainfo{$full_rev};
3194                while (<$fd>) {
3195                        last if (s/^\t//);
3196                        if (/^(\S+) (.*)$/) {
3197                                $meta->{$1} = $2;
3198                        }
3199                }
3200                my $data = $_;
3201                chomp $data;
3202                my $rev = substr($full_rev, 0, 8);
3203                my $author = $meta->{'author'};
3204                my %date = parse_date($meta->{'author-time'},
3205                                      $meta->{'author-tz'});
3206                my $date = $date{'iso-tz'};
3207                if ($group_size) {
3208                        $current_color = ++$current_color % $num_colors;
3209                }
3210                print "<tr class=\"$rev_color[$current_color]\">\n";
3211                if ($group_size) {
3212                        print "<td class=\"sha1\"";
3213                        print " title=\"". esc_html($author) . ", $date\"";
3214                        print " rowspan=\"$group_size\"" if ($group_size > 1);
3215                        print ">";
3216                        print $cgi->a({-href => href(action=>"commit",
3217                                                     hash=>$full_rev,
3218                                                     file_name=>$file_name)},
3219                                      esc_html($rev));
3220                        print "</td>\n";
3221                }
3222                open (my $dd, "-|", git_cmd(), "rev-parse", "$full_rev^")
3223                        or die_error("could not open git-rev-parse");
3224                my $parent_commit = <$dd>;
3225                close $dd;
3226                chomp($parent_commit);
3227                my $blamed = href(action => 'blame',
3228                                  file_name => $meta->{'filename'},
3229                                  hash_base => $parent_commit);
3230                print "<td class=\"linenr\">";
3231                print $cgi->a({ -href => "$blamed#l$orig_lineno",
3232                                -id => "l$lineno",
3233                                -class => "linenr" },
3234                              esc_html($lineno));
3235                print "</td>";
3236                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
3237                print "</tr>\n";
3238        }
3239        print "</table>\n";
3240        print "</div>";
3241        close $fd
3242                or print "Reading blob failed\n";
3243        git_footer_html();
3244}
3245
3246sub git_blame {
3247        my $fd;
3248
3249        my ($have_blame) = gitweb_check_feature('blame');
3250        if (!$have_blame) {
3251                die_error('403 Permission denied', "Permission denied");
3252        }
3253        die_error('404 Not Found', "File name not defined") if (!$file_name);
3254        $hash_base ||= git_get_head_hash($project);
3255        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3256        my %co = parse_commit($hash_base)
3257                or die_error(undef, "Reading commit failed");
3258        if (!defined $hash) {
3259                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3260                        or die_error(undef, "Error lookup file");
3261        }
3262        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
3263                or die_error(undef, "Open git-annotate failed");
3264        git_header_html();
3265        my $formats_nav =
3266                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3267                        "blob") .
3268                " | " .
3269                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3270                        "history") .
3271                " | " .
3272                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3273                        "HEAD");
3274        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3275        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3276        git_print_page_path($file_name, 'blob', $hash_base);
3277        print "<div class=\"page_body\">\n";
3278        print <<HTML;
3279<table class="blame">
3280  <tr>
3281    <th>Commit</th>
3282    <th>Age</th>
3283    <th>Author</th>
3284    <th>Line</th>
3285    <th>Data</th>
3286  </tr>
3287HTML
3288        my @line_class = (qw(light dark));
3289        my $line_class_len = scalar (@line_class);
3290        my $line_class_num = $#line_class;
3291        while (my $line = <$fd>) {
3292                my $long_rev;
3293                my $short_rev;
3294                my $author;
3295                my $time;
3296                my $lineno;
3297                my $data;
3298                my $age;
3299                my $age_str;
3300                my $age_class;
3301
3302                chomp $line;
3303                $line_class_num = ($line_class_num + 1) % $line_class_len;
3304
3305                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
3306                        $long_rev = $1;
3307                        $author   = $2;
3308                        $time     = $3;
3309                        $lineno   = $4;
3310                        $data     = $5;
3311                } else {
3312                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
3313                        next;
3314                }
3315                $short_rev  = substr ($long_rev, 0, 8);
3316                $age        = time () - $time;
3317                $age_str    = age_string ($age);
3318                $age_str    =~ s/ /&nbsp;/g;
3319                $age_class  = age_class($age);
3320                $author     = esc_html ($author);
3321                $author     =~ s/ /&nbsp;/g;
3322
3323                $data = untabify($data);
3324                $data = esc_html ($data);
3325
3326                print <<HTML;
3327  <tr class="$line_class[$line_class_num]">
3328    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
3329    <td class="$age_class">$age_str</td>
3330    <td>$author</td>
3331    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
3332    <td class="pre">$data</td>
3333  </tr>
3334HTML
3335        } # while (my $line = <$fd>)
3336        print "</table>\n\n";
3337        close $fd
3338                or print "Reading blob failed.\n";
3339        print "</div>";
3340        git_footer_html();
3341}
3342
3343sub git_tags {
3344        my $head = git_get_head_hash($project);
3345        git_header_html();
3346        git_print_page_nav('','', $head,undef,$head);
3347        git_print_header_div('summary', $project);
3348
3349        my @tagslist = git_get_tags_list();
3350        if (@tagslist) {
3351                git_tags_body(\@tagslist);
3352        }
3353        git_footer_html();
3354}
3355
3356sub git_heads {
3357        my $head = git_get_head_hash($project);
3358        git_header_html();
3359        git_print_page_nav('','', $head,undef,$head);
3360        git_print_header_div('summary', $project);
3361
3362        my @headslist = git_get_heads_list();
3363        if (@headslist) {
3364                git_heads_body(\@headslist, $head);
3365        }
3366        git_footer_html();
3367}
3368
3369sub git_blob_plain {
3370        my $expires;
3371
3372        if (!defined $hash) {
3373                if (defined $file_name) {
3374                        my $base = $hash_base || git_get_head_hash($project);
3375                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3376                                or die_error(undef, "Error lookup file");
3377                } else {
3378                        die_error(undef, "No file name defined");
3379                }
3380        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3381                # blobs defined by non-textual hash id's can be cached
3382                $expires = "+1d";
3383        }
3384
3385        my $type = shift;
3386        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3387                or die_error(undef, "Couldn't cat $file_name, $hash");
3388
3389        $type ||= blob_mimetype($fd, $file_name);
3390
3391        # save as filename, even when no $file_name is given
3392        my $save_as = "$hash";
3393        if (defined $file_name) {
3394                $save_as = $file_name;
3395        } elsif ($type =~ m/^text\//) {
3396                $save_as .= '.txt';
3397        }
3398
3399        print $cgi->header(
3400                -type => "$type",
3401                -expires=>$expires,
3402                -content_disposition => 'inline; filename="' . "$save_as" . '"');
3403        undef $/;
3404        binmode STDOUT, ':raw';
3405        print <$fd>;
3406        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3407        $/ = "\n";
3408        close $fd;
3409}
3410
3411sub git_blob {
3412        my $expires;
3413
3414        if (!defined $hash) {
3415                if (defined $file_name) {
3416                        my $base = $hash_base || git_get_head_hash($project);
3417                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3418                                or die_error(undef, "Error lookup file");
3419                } else {
3420                        die_error(undef, "No file name defined");
3421                }
3422        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3423                # blobs defined by non-textual hash id's can be cached
3424                $expires = "+1d";
3425        }
3426
3427        my ($have_blame) = gitweb_check_feature('blame');
3428        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3429                or die_error(undef, "Couldn't cat $file_name, $hash");
3430        my $mimetype = blob_mimetype($fd, $file_name);
3431        if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)!) {
3432                close $fd;
3433                return git_blob_plain($mimetype);
3434        }
3435        # we can have blame only for text/* mimetype
3436        $have_blame &&= ($mimetype =~ m!^text/!);
3437
3438        git_header_html(undef, $expires);
3439        my $formats_nav = '';
3440        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3441                if (defined $file_name) {
3442                        if ($have_blame) {
3443                                $formats_nav .=
3444                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3445                                                               hash=>$hash, file_name=>$file_name)},
3446                                                "blame") .
3447                                        " | ";
3448                        }
3449                        $formats_nav .=
3450                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3451                                                       hash=>$hash, file_name=>$file_name)},
3452                                        "history") .
3453                                " | " .
3454                                $cgi->a({-href => href(action=>"blob_plain",
3455                                                       hash=>$hash, file_name=>$file_name)},
3456                                        "raw") .
3457                                " | " .
3458                                $cgi->a({-href => href(action=>"blob",
3459                                                       hash_base=>"HEAD", file_name=>$file_name)},
3460                                        "HEAD");
3461                } else {
3462                        $formats_nav .=
3463                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3464                }
3465                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3466                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3467        } else {
3468                print "<div class=\"page_nav\">\n" .
3469                      "<br/><br/></div>\n" .
3470                      "<div class=\"title\">$hash</div>\n";
3471        }
3472        git_print_page_path($file_name, "blob", $hash_base);
3473        print "<div class=\"page_body\">\n";
3474        if ($mimetype =~ m!^text/!) {
3475                my $nr;
3476                while (my $line = <$fd>) {
3477                        chomp $line;
3478                        $nr++;
3479                        $line = untabify($line);
3480                        printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3481                               $nr, $nr, $nr, esc_html($line, -nbsp=>1);
3482                }
3483        } elsif ($mimetype =~ m!^image/!) {
3484                print qq!<img type="$mimetype"!;
3485                if ($file_name) {
3486                        print qq! alt="$file_name" title="$file_name"!;
3487                }
3488                print qq! src="! .
3489                      href(action=>"blob_plain", hash=>$hash,
3490                           hash_base=>$hash_base, file_name=>$file_name) .
3491                      qq!" />\n!;
3492        }
3493        close $fd
3494                or print "Reading blob failed.\n";
3495        print "</div>";
3496        git_footer_html();
3497}
3498
3499sub git_tree {
3500        my $have_snapshot = gitweb_have_snapshot();
3501
3502        if (!defined $hash_base) {
3503                $hash_base = "HEAD";
3504        }
3505        if (!defined $hash) {
3506                if (defined $file_name) {
3507                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3508                } else {
3509                        $hash = $hash_base;
3510                }
3511        }
3512        $/ = "\0";
3513        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3514                or die_error(undef, "Open git-ls-tree failed");
3515        my @entries = map { chomp; $_ } <$fd>;
3516        close $fd or die_error(undef, "Reading tree failed");
3517        $/ = "\n";
3518
3519        my $refs = git_get_references();
3520        my $ref = format_ref_marker($refs, $hash_base);
3521        git_header_html();
3522        my $basedir = '';
3523        my ($have_blame) = gitweb_check_feature('blame');
3524        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3525                my @views_nav = ();
3526                if (defined $file_name) {
3527                        push @views_nav,
3528                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3529                                                       hash=>$hash, file_name=>$file_name)},
3530                                        "history"),
3531                                $cgi->a({-href => href(action=>"tree",
3532                                                       hash_base=>"HEAD", file_name=>$file_name)},
3533                                        "HEAD"),
3534                }
3535                if ($have_snapshot) {
3536                        # FIXME: Should be available when we have no hash base as well.
3537                        push @views_nav,
3538                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3539                                        "snapshot");
3540                }
3541                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3542                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3543        } else {
3544                undef $hash_base;
3545                print "<div class=\"page_nav\">\n";
3546                print "<br/><br/></div>\n";
3547                print "<div class=\"title\">$hash</div>\n";
3548        }
3549        if (defined $file_name) {
3550                $basedir = $file_name;
3551                if ($basedir ne '' && substr($basedir, -1) ne '/') {
3552                        $basedir .= '/';
3553                }
3554        }
3555        git_print_page_path($file_name, 'tree', $hash_base);
3556        print "<div class=\"page_body\">\n";
3557        print "<table cellspacing=\"0\">\n";
3558        my $alternate = 1;
3559        # '..' (top directory) link if possible
3560        if (defined $hash_base &&
3561            defined $file_name && $file_name =~ m![^/]+$!) {
3562                if ($alternate) {
3563                        print "<tr class=\"dark\">\n";
3564                } else {
3565                        print "<tr class=\"light\">\n";
3566                }
3567                $alternate ^= 1;
3568
3569                my $up = $file_name;
3570                $up =~ s!/?[^/]+$!!;
3571                undef $up unless $up;
3572                # based on git_print_tree_entry
3573                print '<td class="mode">' . mode_str('040000') . "</td>\n";
3574                print '<td class="list">';
3575                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3576                                             file_name=>$up)},
3577                              "..");
3578                print "</td>\n";
3579                print "<td class=\"link\"></td>\n";
3580
3581                print "</tr>\n";
3582        }
3583        foreach my $line (@entries) {
3584                my %t = parse_ls_tree_line($line, -z => 1);
3585
3586                if ($alternate) {
3587                        print "<tr class=\"dark\">\n";
3588                } else {
3589                        print "<tr class=\"light\">\n";
3590                }
3591                $alternate ^= 1;
3592
3593                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3594
3595                print "</tr>\n";
3596        }
3597        print "</table>\n" .
3598              "</div>";
3599        git_footer_html();
3600}
3601
3602sub git_snapshot {
3603        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3604        my $have_snapshot = (defined $ctype && defined $suffix);
3605        if (!$have_snapshot) {
3606                die_error('403 Permission denied', "Permission denied");
3607        }
3608
3609        if (!defined $hash) {
3610                $hash = git_get_head_hash($project);
3611        }
3612
3613        my $filename = to_utf8(basename($project)) . "-$hash.tar.$suffix";
3614
3615        print $cgi->header(
3616                -type => "application/$ctype",
3617                -content_disposition => 'inline; filename="' . "$filename" . '"',
3618                -status => '200 OK');
3619
3620        my $git = git_cmd_str();
3621        my $name = $project;
3622        $name =~ s/\047/\047\\\047\047/g;
3623        open my $fd, "-|",
3624        "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3625                or die_error(undef, "Execute git-tar-tree failed.");
3626        binmode STDOUT, ':raw';
3627        print <$fd>;
3628        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3629        close $fd;
3630
3631}
3632
3633sub git_log {
3634        my $head = git_get_head_hash($project);
3635        if (!defined $hash) {
3636                $hash = $head;
3637        }
3638        if (!defined $page) {
3639                $page = 0;
3640        }
3641        my $refs = git_get_references();
3642
3643        my @commitlist = parse_commits($hash, 101, (100 * $page));
3644
3645        my $paging_nav = format_paging_nav('log', $hash, $head, $page, (100 * ($page+1)));
3646
3647        git_header_html();
3648        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3649
3650        if (!@commitlist) {
3651                my %co = parse_commit($hash);
3652
3653                git_print_header_div('summary', $project);
3654                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3655        }
3656        my $to = ($#commitlist >= 99) ? (99) : ($#commitlist);
3657        for (my $i = 0; $i <= $to; $i++) {
3658                my %co = %{$commitlist[$i]};
3659                next if !%co;
3660                my $commit = $co{'id'};
3661                my $ref = format_ref_marker($refs, $commit);
3662                my %ad = parse_date($co{'author_epoch'});
3663                git_print_header_div('commit',
3664                               "<span class=\"age\">$co{'age_string'}</span>" .
3665                               esc_html($co{'title'}) . $ref,
3666                               $commit);
3667                print "<div class=\"title_text\">\n" .
3668                      "<div class=\"log_link\">\n" .
3669                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3670                      " | " .
3671                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3672                      " | " .
3673                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3674                      "<br/>\n" .
3675                      "</div>\n" .
3676                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3677                      "</div>\n";
3678
3679                print "<div class=\"log_body\">\n";
3680                git_print_log($co{'comment'}, -final_empty_line=> 1);
3681                print "</div>\n";
3682        }
3683        if ($#commitlist >= 100) {
3684                print "<div class=\"page_nav\">\n";
3685                print $cgi->a({-href => href(action=>"log", hash=>$hash, page=>$page+1),
3686                               -accesskey => "n", -title => "Alt-n"}, "next");
3687                print "</div>\n";
3688        }
3689        git_footer_html();
3690}
3691
3692sub git_commit {
3693        $hash ||= $hash_base || "HEAD";
3694        my %co = parse_commit($hash);
3695        if (!%co) {
3696                die_error(undef, "Unknown commit object");
3697        }
3698        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3699        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3700
3701        my $parent  = $co{'parent'};
3702        my $parents = $co{'parents'}; # listref
3703
3704        # we need to prepare $formats_nav before any parameter munging
3705        my $formats_nav;
3706        if (!defined $parent) {
3707                # --root commitdiff
3708                $formats_nav .= '(initial)';
3709        } elsif (@$parents == 1) {
3710                # single parent commit
3711                $formats_nav .=
3712                        '(parent: ' .
3713                        $cgi->a({-href => href(action=>"commit",
3714                                               hash=>$parent)},
3715                                esc_html(substr($parent, 0, 7))) .
3716                        ')';
3717        } else {
3718                # merge commit
3719                $formats_nav .=
3720                        '(merge: ' .
3721                        join(' ', map {
3722                                $cgi->a({-href => href(action=>"commit",
3723                                                       hash=>$_)},
3724                                        esc_html(substr($_, 0, 7)));
3725                        } @$parents ) .
3726                        ')';
3727        }
3728
3729        if (!defined $parent) {
3730                $parent = "--root";
3731        }
3732        my @difftree;
3733        if (@$parents <= 1) {
3734                # difftree output is not printed for merges
3735                open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
3736                        @diff_opts, $parent, $hash, "--"
3737                                or die_error(undef, "Open git-diff-tree failed");
3738                @difftree = map { chomp; $_ } <$fd>;
3739                close $fd or die_error(undef, "Reading git-diff-tree failed");
3740        }
3741
3742        # non-textual hash id's can be cached
3743        my $expires;
3744        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3745                $expires = "+1d";
3746        }
3747        my $refs = git_get_references();
3748        my $ref = format_ref_marker($refs, $co{'id'});
3749
3750        my $have_snapshot = gitweb_have_snapshot();
3751
3752        git_header_html(undef, $expires);
3753        git_print_page_nav('commit', '',
3754                           $hash, $co{'tree'}, $hash,
3755                           $formats_nav);
3756
3757        if (defined $co{'parent'}) {
3758                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3759        } else {
3760                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3761        }
3762        print "<div class=\"title_text\">\n" .
3763              "<table cellspacing=\"0\">\n";
3764        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3765              "<tr>" .
3766              "<td></td><td> $ad{'rfc2822'}";
3767        if ($ad{'hour_local'} < 6) {
3768                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3769                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3770        } else {
3771                printf(" (%02d:%02d %s)",
3772                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3773        }
3774        print "</td>" .
3775              "</tr>\n";
3776        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3777        print "<tr><td></td><td> $cd{'rfc2822'}" .
3778              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3779              "</td></tr>\n";
3780        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3781        print "<tr>" .
3782              "<td>tree</td>" .
3783              "<td class=\"sha1\">" .
3784              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3785                       class => "list"}, $co{'tree'}) .
3786              "</td>" .
3787              "<td class=\"link\">" .
3788              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3789                      "tree");
3790        if ($have_snapshot) {
3791                print " | " .
3792                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3793        }
3794        print "</td>" .
3795              "</tr>\n";
3796
3797        foreach my $par (@$parents) {
3798                print "<tr>" .
3799                      "<td>parent</td>" .
3800                      "<td class=\"sha1\">" .
3801                      $cgi->a({-href => href(action=>"commit", hash=>$par),
3802                               class => "list"}, $par) .
3803                      "</td>" .
3804                      "<td class=\"link\">" .
3805                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3806                      " | " .
3807                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3808                      "</td>" .
3809                      "</tr>\n";
3810        }
3811        print "</table>".
3812              "</div>\n";
3813
3814        print "<div class=\"page_body\">\n";
3815        git_print_log($co{'comment'});
3816        print "</div>\n";
3817
3818        if (@$parents <= 1) {
3819                # do not output difftree/whatchanged for merges
3820                git_difftree_body(\@difftree, $hash, $parent);
3821        }
3822
3823        git_footer_html();
3824}
3825
3826sub git_object {
3827        # object is defined by:
3828        # - hash or hash_base alone
3829        # - hash_base and file_name
3830        my $type;
3831
3832        # - hash or hash_base alone
3833        if ($hash || ($hash_base && !defined $file_name)) {
3834                my $object_id = $hash || $hash_base;
3835
3836                my $git_command = git_cmd_str();
3837                open my $fd, "-|", "$git_command cat-file -t $object_id 2>/dev/null"
3838                        or die_error('404 Not Found', "Object does not exist");
3839                $type = <$fd>;
3840                chomp $type;
3841                close $fd
3842                        or die_error('404 Not Found', "Object does not exist");
3843
3844        # - hash_base and file_name
3845        } elsif ($hash_base && defined $file_name) {
3846                $file_name =~ s,/+$,,;
3847
3848                system(git_cmd(), "cat-file", '-e', $hash_base) == 0
3849                        or die_error('404 Not Found', "Base object does not exist");
3850
3851                # here errors should not hapen
3852                open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
3853                        or die_error(undef, "Open git-ls-tree failed");
3854                my $line = <$fd>;
3855                close $fd;
3856
3857                #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
3858                unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
3859                        die_error('404 Not Found', "File or directory for given base does not exist");
3860                }
3861                $type = $2;
3862                $hash = $3;
3863        } else {
3864                die_error('404 Not Found', "Not enough information to find object");
3865        }
3866
3867        print $cgi->redirect(-uri => href(action=>$type, -full=>1,
3868                                          hash=>$hash, hash_base=>$hash_base,
3869                                          file_name=>$file_name),
3870                             -status => '302 Found');
3871}
3872
3873sub git_blobdiff {
3874        my $format = shift || 'html';
3875
3876        my $fd;
3877        my @difftree;
3878        my %diffinfo;
3879        my $expires;
3880
3881        # preparing $fd and %diffinfo for git_patchset_body
3882        # new style URI
3883        if (defined $hash_base && defined $hash_parent_base) {
3884                if (defined $file_name) {
3885                        # read raw output
3886                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3887                                $hash_parent_base, $hash_base,
3888                                "--", $file_name
3889                                or die_error(undef, "Open git-diff-tree failed");
3890                        @difftree = map { chomp; $_ } <$fd>;
3891                        close $fd
3892                                or die_error(undef, "Reading git-diff-tree failed");
3893                        @difftree
3894                                or die_error('404 Not Found', "Blob diff not found");
3895
3896                } elsif (defined $hash &&
3897                         $hash =~ /[0-9a-fA-F]{40}/) {
3898                        # try to find filename from $hash
3899
3900                        # read filtered raw output
3901                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3902                                $hash_parent_base, $hash_base, "--"
3903                                or die_error(undef, "Open git-diff-tree failed");
3904                        @difftree =
3905                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3906                                # $hash == to_id
3907                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3908                                map { chomp; $_ } <$fd>;
3909                        close $fd
3910                                or die_error(undef, "Reading git-diff-tree failed");
3911                        @difftree
3912                                or die_error('404 Not Found', "Blob diff not found");
3913
3914                } else {
3915                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3916                }
3917
3918                if (@difftree > 1) {
3919                        die_error('404 Not Found', "Ambiguous blob diff specification");
3920                }
3921
3922                %diffinfo = parse_difftree_raw_line($difftree[0]);
3923                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3924                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3925
3926                $hash_parent ||= $diffinfo{'from_id'};
3927                $hash        ||= $diffinfo{'to_id'};
3928
3929                # non-textual hash id's can be cached
3930                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3931                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3932                        $expires = '+1d';
3933                }
3934
3935                # open patch output
3936                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3937                        '-p', $hash_parent_base, $hash_base,
3938                        "--", $file_name
3939                        or die_error(undef, "Open git-diff-tree failed");
3940        }
3941
3942        # old/legacy style URI
3943        if (!%diffinfo && # if new style URI failed
3944            defined $hash && defined $hash_parent) {
3945                # fake git-diff-tree raw output
3946                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3947                $diffinfo{'from_id'} = $hash_parent;
3948                $diffinfo{'to_id'}   = $hash;
3949                if (defined $file_name) {
3950                        if (defined $file_parent) {
3951                                $diffinfo{'status'} = '2';
3952                                $diffinfo{'from_file'} = $file_parent;
3953                                $diffinfo{'to_file'}   = $file_name;
3954                        } else { # assume not renamed
3955                                $diffinfo{'status'} = '1';
3956                                $diffinfo{'from_file'} = $file_name;
3957                                $diffinfo{'to_file'}   = $file_name;
3958                        }
3959                } else { # no filename given
3960                        $diffinfo{'status'} = '2';
3961                        $diffinfo{'from_file'} = $hash_parent;
3962                        $diffinfo{'to_file'}   = $hash;
3963                }
3964
3965                # non-textual hash id's can be cached
3966                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3967                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3968                        $expires = '+1d';
3969                }
3970
3971                # open patch output
3972                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts,
3973                        $hash_parent, $hash, "--"
3974                        or die_error(undef, "Open git-diff failed");
3975        } else  {
3976                die_error('404 Not Found', "Missing one of the blob diff parameters")
3977                        unless %diffinfo;
3978        }
3979
3980        # header
3981        if ($format eq 'html') {
3982                my $formats_nav =
3983                        $cgi->a({-href => href(action=>"blobdiff_plain",
3984                                               hash=>$hash, hash_parent=>$hash_parent,
3985                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3986                                               file_name=>$file_name, file_parent=>$file_parent)},
3987                                "raw");
3988                git_header_html(undef, $expires);
3989                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3990                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3991                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3992                } else {
3993                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3994                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3995                }
3996                if (defined $file_name) {
3997                        git_print_page_path($file_name, "blob", $hash_base);
3998                } else {
3999                        print "<div class=\"page_path\"></div>\n";
4000                }
4001
4002        } elsif ($format eq 'plain') {
4003                print $cgi->header(
4004                        -type => 'text/plain',
4005                        -charset => 'utf-8',
4006                        -expires => $expires,
4007                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
4008
4009                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4010
4011        } else {
4012                die_error(undef, "Unknown blobdiff format");
4013        }
4014
4015        # patch
4016        if ($format eq 'html') {
4017                print "<div class=\"page_body\">\n";
4018
4019                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
4020                close $fd;
4021
4022                print "</div>\n"; # class="page_body"
4023                git_footer_html();
4024
4025        } else {
4026                while (my $line = <$fd>) {
4027                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
4028                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
4029
4030                        print $line;
4031
4032                        last if $line =~ m!^\+\+\+!;
4033                }
4034                local $/ = undef;
4035                print <$fd>;
4036                close $fd;
4037        }
4038}
4039
4040sub git_blobdiff_plain {
4041        git_blobdiff('plain');
4042}
4043
4044sub git_commitdiff {
4045        my $format = shift || 'html';
4046        $hash ||= $hash_base || "HEAD";
4047        my %co = parse_commit($hash);
4048        if (!%co) {
4049                die_error(undef, "Unknown commit object");
4050        }
4051
4052        # we need to prepare $formats_nav before any parameter munging
4053        my $formats_nav;
4054        if ($format eq 'html') {
4055                $formats_nav =
4056                        $cgi->a({-href => href(action=>"commitdiff_plain",
4057                                               hash=>$hash, hash_parent=>$hash_parent)},
4058                                "raw");
4059
4060                if (defined $hash_parent) {
4061                        # commitdiff with two commits given
4062                        my $hash_parent_short = $hash_parent;
4063                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4064                                $hash_parent_short = substr($hash_parent, 0, 7);
4065                        }
4066                        $formats_nav .=
4067                                ' (from: ' .
4068                                $cgi->a({-href => href(action=>"commitdiff",
4069                                                       hash=>$hash_parent)},
4070                                        esc_html($hash_parent_short)) .
4071                                ')';
4072                } elsif (!$co{'parent'}) {
4073                        # --root commitdiff
4074                        $formats_nav .= ' (initial)';
4075                } elsif (scalar @{$co{'parents'}} == 1) {
4076                        # single parent commit
4077                        $formats_nav .=
4078                                ' (parent: ' .
4079                                $cgi->a({-href => href(action=>"commitdiff",
4080                                                       hash=>$co{'parent'})},
4081                                        esc_html(substr($co{'parent'}, 0, 7))) .
4082                                ')';
4083                } else {
4084                        # merge commit
4085                        $formats_nav .=
4086                                ' (merge: ' .
4087                                join(' ', map {
4088                                        $cgi->a({-href => href(action=>"commitdiff",
4089                                                               hash=>$_)},
4090                                                esc_html(substr($_, 0, 7)));
4091                                } @{$co{'parents'}} ) .
4092                                ')';
4093                }
4094        }
4095
4096        if (!defined $hash_parent) {
4097                $hash_parent = $co{'parent'} || '--root';
4098        }
4099
4100        # read commitdiff
4101        my $fd;
4102        my @difftree;
4103        if ($format eq 'html') {
4104                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4105                        "--no-commit-id", "--patch-with-raw", "--full-index",
4106                        $hash_parent, $hash, "--"
4107                        or die_error(undef, "Open git-diff-tree failed");
4108
4109                while (my $line = <$fd>) {
4110                        chomp $line;
4111                        # empty line ends raw part of diff-tree output
4112                        last unless $line;
4113                        push @difftree, $line;
4114                }
4115
4116        } elsif ($format eq 'plain') {
4117                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4118                        '-p', $hash_parent, $hash, "--"
4119                        or die_error(undef, "Open git-diff-tree failed");
4120
4121        } else {
4122                die_error(undef, "Unknown commitdiff format");
4123        }
4124
4125        # non-textual hash id's can be cached
4126        my $expires;
4127        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4128                $expires = "+1d";
4129        }
4130
4131        # write commit message
4132        if ($format eq 'html') {
4133                my $refs = git_get_references();
4134                my $ref = format_ref_marker($refs, $co{'id'});
4135
4136                git_header_html(undef, $expires);
4137                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
4138                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
4139                git_print_authorship(\%co);
4140                print "<div class=\"page_body\">\n";
4141                if (@{$co{'comment'}} > 1) {
4142                        print "<div class=\"log\">\n";
4143                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
4144                        print "</div>\n"; # class="log"
4145                }
4146
4147        } elsif ($format eq 'plain') {
4148                my $refs = git_get_references("tags");
4149                my $tagname = git_get_rev_name_tags($hash);
4150                my $filename = basename($project) . "-$hash.patch";
4151
4152                print $cgi->header(
4153                        -type => 'text/plain',
4154                        -charset => 'utf-8',
4155                        -expires => $expires,
4156                        -content_disposition => 'inline; filename="' . "$filename" . '"');
4157                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4158                print <<TEXT;
4159From: $co{'author'}
4160Date: $ad{'rfc2822'} ($ad{'tz_local'})
4161Subject: $co{'title'}
4162TEXT
4163                print "X-Git-Tag: $tagname\n" if $tagname;
4164                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4165
4166                foreach my $line (@{$co{'comment'}}) {
4167                        print "$line\n";
4168                }
4169                print "---\n\n";
4170        }
4171
4172        # write patch
4173        if ($format eq 'html') {
4174                git_difftree_body(\@difftree, $hash, $hash_parent);
4175                print "<br/>\n";
4176
4177                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
4178                close $fd;
4179                print "</div>\n"; # class="page_body"
4180                git_footer_html();
4181
4182        } elsif ($format eq 'plain') {
4183                local $/ = undef;
4184                print <$fd>;
4185                close $fd
4186                        or print "Reading git-diff-tree failed\n";
4187        }
4188}
4189
4190sub git_commitdiff_plain {
4191        git_commitdiff('plain');
4192}
4193
4194sub git_history {
4195        if (!defined $hash_base) {
4196                $hash_base = git_get_head_hash($project);
4197        }
4198        if (!defined $page) {
4199                $page = 0;
4200        }
4201        my $ftype;
4202        my %co = parse_commit($hash_base);
4203        if (!%co) {
4204                die_error(undef, "Unknown commit object");
4205        }
4206
4207        my $refs = git_get_references();
4208        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4209
4210        if (!defined $hash && defined $file_name) {
4211                $hash = git_get_hash_by_path($hash_base, $file_name);
4212        }
4213        if (defined $hash) {
4214                $ftype = git_get_type($hash);
4215        }
4216
4217        my @commitlist = parse_commits($hash_base, 101, (100 * $page), "--full-history", $file_name);
4218
4219        my $paging_nav = '';
4220        if ($page > 0) {
4221                $paging_nav .=
4222                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4223                                               file_name=>$file_name)},
4224                                "first");
4225                $paging_nav .= " &sdot; " .
4226                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4227                                               file_name=>$file_name, page=>$page-1),
4228                                 -accesskey => "p", -title => "Alt-p"}, "prev");
4229        } else {
4230                $paging_nav .= "first";
4231                $paging_nav .= " &sdot; prev";
4232        }
4233        if ($#commitlist >= 100) {
4234                $paging_nav .= " &sdot; " .
4235                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4236                                               file_name=>$file_name, page=>$page+1),
4237                                 -accesskey => "n", -title => "Alt-n"}, "next");
4238        } else {
4239                $paging_nav .= " &sdot; next";
4240        }
4241        my $next_link = '';
4242        if ($#commitlist >= 100) {
4243                $next_link =
4244                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4245                                               file_name=>$file_name, page=>$page+1),
4246                                 -accesskey => "n", -title => "Alt-n"}, "next");
4247        }
4248
4249        git_header_html();
4250        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
4251        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4252        git_print_page_path($file_name, $ftype, $hash_base);
4253
4254        git_history_body(\@commitlist, 0, 99,
4255                         $refs, $hash_base, $ftype, $next_link);
4256
4257        git_footer_html();
4258}
4259
4260sub git_search {
4261        my ($have_search) = gitweb_check_feature('search');
4262        if (!$have_search) {
4263                die_error('403 Permission denied', "Permission denied");
4264        }
4265        if (!defined $searchtext) {
4266                die_error(undef, "Text field empty");
4267        }
4268        if (!defined $hash) {
4269                $hash = git_get_head_hash($project);
4270        }
4271        my %co = parse_commit($hash);
4272        if (!%co) {
4273                die_error(undef, "Unknown commit object");
4274        }
4275        if (!defined $page) {
4276                $page = 0;
4277        }
4278
4279        $searchtype ||= 'commit';
4280        if ($searchtype eq 'pickaxe') {
4281                # pickaxe may take all resources of your box and run for several minutes
4282                # with every query - so decide by yourself how public you make this feature
4283                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4284                if (!$have_pickaxe) {
4285                        die_error('403 Permission denied', "Permission denied");
4286                }
4287        }
4288
4289        git_header_html();
4290
4291        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
4292                my $greptype;
4293                if ($searchtype eq 'commit') {
4294                        $greptype = "--grep=";
4295                } elsif ($searchtype eq 'author') {
4296                        $greptype = "--author=";
4297                } elsif ($searchtype eq 'committer') {
4298                        $greptype = "--committer=";
4299                }
4300                $greptype .= $searchtext;
4301                my @commitlist = parse_commits($hash, 101, (100 * $page), $greptype);
4302
4303                my $paging_nav = '';
4304                if ($page > 0) {
4305                        $paging_nav .=
4306                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4307                                                       searchtext=>$searchtext, searchtype=>$searchtype)},
4308                                        "first");
4309                        $paging_nav .= " &sdot; " .
4310                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4311                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4312                                                       page=>$page-1),
4313                                         -accesskey => "p", -title => "Alt-p"}, "prev");
4314                } else {
4315                        $paging_nav .= "first";
4316                        $paging_nav .= " &sdot; prev";
4317                }
4318                if ($#commitlist >= 100) {
4319                        $paging_nav .= " &sdot; " .
4320                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4321                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4322                                                       page=>$page+1),
4323                                         -accesskey => "n", -title => "Alt-n"}, "next");
4324                } else {
4325                        $paging_nav .= " &sdot; next";
4326                }
4327                my $next_link = '';
4328                if ($#commitlist >= 100) {
4329                        $next_link =
4330                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4331                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4332                                                       page=>$page+1),
4333                                         -accesskey => "n", -title => "Alt-n"}, "next");
4334                }
4335
4336                git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
4337                git_print_header_div('commit', esc_html($co{'title'}), $hash);
4338                git_search_grep_body(\@commitlist, 0, 99, $next_link);
4339        }
4340
4341        if ($searchtype eq 'pickaxe') {
4342                git_print_page_nav('','', $hash,$co{'tree'},$hash);
4343                git_print_header_div('commit', esc_html($co{'title'}), $hash);
4344
4345                print "<table cellspacing=\"0\">\n";
4346                my $alternate = 1;
4347                $/ = "\n";
4348                my $git_command = git_cmd_str();
4349                open my $fd, "-|", "$git_command rev-list $hash | " .
4350                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
4351                undef %co;
4352                my @files;
4353                while (my $line = <$fd>) {
4354                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
4355                                my %set;
4356                                $set{'file'} = $6;
4357                                $set{'from_id'} = $3;
4358                                $set{'to_id'} = $4;
4359                                $set{'id'} = $set{'to_id'};
4360                                if ($set{'id'} =~ m/0{40}/) {
4361                                        $set{'id'} = $set{'from_id'};
4362                                }
4363                                if ($set{'id'} =~ m/0{40}/) {
4364                                        next;
4365                                }
4366                                push @files, \%set;
4367                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
4368                                if (%co) {
4369                                        if ($alternate) {
4370                                                print "<tr class=\"dark\">\n";
4371                                        } else {
4372                                                print "<tr class=\"light\">\n";
4373                                        }
4374                                        $alternate ^= 1;
4375                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4376                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4377                                              "<td>" .
4378                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
4379                                                      -class => "list subject"},
4380                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4381                                        while (my $setref = shift @files) {
4382                                                my %set = %$setref;
4383                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
4384                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
4385                                                              -class => "list"},
4386                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
4387                                                      "<br/>\n";
4388                                        }
4389                                        print "</td>\n" .
4390                                              "<td class=\"link\">" .
4391                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4392                                              " | " .
4393                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4394                                        print "</td>\n" .
4395                                              "</tr>\n";
4396                                }
4397                                %co = parse_commit($1);
4398                        }
4399                }
4400                close $fd;
4401
4402                print "</table>\n";
4403        }
4404        git_footer_html();
4405}
4406
4407sub git_search_help {
4408        git_header_html();
4409        git_print_page_nav('','', $hash,$hash,$hash);
4410        print <<EOT;
4411<dl>
4412<dt><b>commit</b></dt>
4413<dd>The commit messages and authorship information will be scanned for the given string.</dd>
4414<dt><b>author</b></dt>
4415<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
4416<dt><b>committer</b></dt>
4417<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
4418EOT
4419        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4420        if ($have_pickaxe) {
4421                print <<EOT;
4422<dt><b>pickaxe</b></dt>
4423<dd>All commits that caused the string to appear or disappear from any file (changes that
4424added, removed or "modified" the string) will be listed. This search can take a while and
4425takes a lot of strain on the server, so please use it wisely.</dd>
4426EOT
4427        }
4428        print "</dl>\n";
4429        git_footer_html();
4430}
4431
4432sub git_shortlog {
4433        my $head = git_get_head_hash($project);
4434        if (!defined $hash) {
4435                $hash = $head;
4436        }
4437        if (!defined $page) {
4438                $page = 0;
4439        }
4440        my $refs = git_get_references();
4441
4442        my @commitlist = parse_commits($hash, 101, (100 * $page));
4443
4444        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, (100 * ($page+1)));
4445        my $next_link = '';
4446        if ($#commitlist >= 100) {
4447                $next_link =
4448                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
4449                                 -accesskey => "n", -title => "Alt-n"}, "next");
4450        }
4451
4452        git_header_html();
4453        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
4454        git_print_header_div('summary', $project);
4455
4456        git_shortlog_body(\@commitlist, 0, 99, $refs, $next_link);
4457
4458        git_footer_html();
4459}
4460
4461## ......................................................................
4462## feeds (RSS, Atom; OPML)
4463
4464sub git_feed {
4465        my $format = shift || 'atom';
4466        my ($have_blame) = gitweb_check_feature('blame');
4467
4468        # Atom: http://www.atomenabled.org/developers/syndication/
4469        # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
4470        if ($format ne 'rss' && $format ne 'atom') {
4471                die_error(undef, "Unknown web feed format");
4472        }
4473
4474        # log/feed of current (HEAD) branch, log of given branch, history of file/directory
4475        my $head = $hash || 'HEAD';
4476        my @commitlist = parse_commits($head, 150);
4477
4478        my %latest_commit;
4479        my %latest_date;
4480        my $content_type = "application/$format+xml";
4481        if (defined $cgi->http('HTTP_ACCEPT') &&
4482                 $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
4483                # browser (feed reader) prefers text/xml
4484                $content_type = 'text/xml';
4485        }
4486        if (defined($commitlist[0])) {
4487                %latest_commit = %{$commitlist[0]};
4488                %latest_date   = parse_date($latest_commit{'author_epoch'});
4489                print $cgi->header(
4490                        -type => $content_type,
4491                        -charset => 'utf-8',
4492                        -last_modified => $latest_date{'rfc2822'});
4493        } else {
4494                print $cgi->header(
4495                        -type => $content_type,
4496                        -charset => 'utf-8');
4497        }
4498
4499        # Optimization: skip generating the body if client asks only
4500        # for Last-Modified date.
4501        return if ($cgi->request_method() eq 'HEAD');
4502
4503        # header variables
4504        my $title = "$site_name - $project/$action";
4505        my $feed_type = 'log';
4506        if (defined $hash) {
4507                $title .= " - '$hash'";
4508                $feed_type = 'branch log';
4509                if (defined $file_name) {
4510                        $title .= " :: $file_name";
4511                        $feed_type = 'history';
4512                }
4513        } elsif (defined $file_name) {
4514                $title .= " - $file_name";
4515                $feed_type = 'history';
4516        }
4517        $title .= " $feed_type";
4518        my $descr = git_get_project_description($project);
4519        if (defined $descr) {
4520                $descr = esc_html($descr);
4521        } else {
4522                $descr = "$project " .
4523                         ($format eq 'rss' ? 'RSS' : 'Atom') .
4524                         " feed";
4525        }
4526        my $owner = git_get_project_owner($project);
4527        $owner = esc_html($owner);
4528
4529        #header
4530        my $alt_url;
4531        if (defined $file_name) {
4532                $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
4533        } elsif (defined $hash) {
4534                $alt_url = href(-full=>1, action=>"log", hash=>$hash);
4535        } else {
4536                $alt_url = href(-full=>1, action=>"summary");
4537        }
4538        print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
4539        if ($format eq 'rss') {
4540                print <<XML;
4541<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
4542<channel>
4543XML
4544                print "<title>$title</title>\n" .
4545                      "<link>$alt_url</link>\n" .
4546                      "<description>$descr</description>\n" .
4547                      "<language>en</language>\n";
4548        } elsif ($format eq 'atom') {
4549                print <<XML;
4550<feed xmlns="http://www.w3.org/2005/Atom">
4551XML
4552                print "<title>$title</title>\n" .
4553                      "<subtitle>$descr</subtitle>\n" .
4554                      '<link rel="alternate" type="text/html" href="' .
4555                      $alt_url . '" />' . "\n" .
4556                      '<link rel="self" type="' . $content_type . '" href="' .
4557                      $cgi->self_url() . '" />' . "\n" .
4558                      "<id>" . href(-full=>1) . "</id>\n" .
4559                      # use project owner for feed author
4560                      "<author><name>$owner</name></author>\n";
4561                if (defined $favicon) {
4562                        print "<icon>" . esc_url($favicon) . "</icon>\n";
4563                }
4564                if (defined $logo_url) {
4565                        # not twice as wide as tall: 72 x 27 pixels
4566                        print "<logo>" . esc_url($logo) . "</logo>\n";
4567                }
4568                if (! %latest_date) {
4569                        # dummy date to keep the feed valid until commits trickle in:
4570                        print "<updated>1970-01-01T00:00:00Z</updated>\n";
4571                } else {
4572                        print "<updated>$latest_date{'iso-8601'}</updated>\n";
4573                }
4574        }
4575
4576        # contents
4577        for (my $i = 0; $i <= $#commitlist; $i++) {
4578                my %co = %{$commitlist[$i]};
4579                my $commit = $co{'id'};
4580                # we read 150, we always show 30 and the ones more recent than 48 hours
4581                if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
4582                        last;
4583                }
4584                my %cd = parse_date($co{'author_epoch'});
4585
4586                # get list of changed files
4587                open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4588                        $co{'parent'}, $co{'id'}, "--", (defined $file_name ? $file_name : ())
4589                        or next;
4590                my @difftree = map { chomp; $_ } <$fd>;
4591                close $fd
4592                        or next;
4593
4594                # print element (entry, item)
4595                my $co_url = href(-full=>1, action=>"commit", hash=>$commit);
4596                if ($format eq 'rss') {
4597                        print "<item>\n" .
4598                              "<title>" . esc_html($co{'title'}) . "</title>\n" .
4599                              "<author>" . esc_html($co{'author'}) . "</author>\n" .
4600                              "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
4601                              "<guid isPermaLink=\"true\">$co_url</guid>\n" .
4602                              "<link>$co_url</link>\n" .
4603                              "<description>" . esc_html($co{'title'}) . "</description>\n" .
4604                              "<content:encoded>" .
4605                              "<![CDATA[\n";
4606                } elsif ($format eq 'atom') {
4607                        print "<entry>\n" .
4608                              "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
4609                              "<updated>$cd{'iso-8601'}</updated>\n" .
4610                              "<author>\n" .
4611                              "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
4612                        if ($co{'author_email'}) {
4613                                print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
4614                        }
4615                        print "</author>\n" .
4616                              # use committer for contributor
4617                              "<contributor>\n" .
4618                              "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
4619                        if ($co{'committer_email'}) {
4620                                print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
4621                        }
4622                        print "</contributor>\n" .
4623                              "<published>$cd{'iso-8601'}</published>\n" .
4624                              "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
4625                              "<id>$co_url</id>\n" .
4626                              "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
4627                              "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
4628                }
4629                my $comment = $co{'comment'};
4630                print "<pre>\n";
4631                foreach my $line (@$comment) {
4632                        $line = esc_html($line);
4633                        print "$line\n";
4634                }
4635                print "</pre><ul>\n";
4636                foreach my $difftree_line (@difftree) {
4637                        my %difftree = parse_difftree_raw_line($difftree_line);
4638                        next if !$difftree{'from_id'};
4639
4640                        my $file = $difftree{'file'} || $difftree{'to_file'};
4641
4642                        print "<li>" .
4643                              "[" .
4644                              $cgi->a({-href => href(-full=>1, action=>"blobdiff",
4645                                                     hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
4646                                                     hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
4647                                                     file_name=>$file, file_parent=>$difftree{'from_file'}),
4648                                      -title => "diff"}, 'D');
4649                        if ($have_blame) {
4650                                print $cgi->a({-href => href(-full=>1, action=>"blame",
4651                                                             file_name=>$file, hash_base=>$commit),
4652                                              -title => "blame"}, 'B');
4653                        }
4654                        # if this is not a feed of a file history
4655                        if (!defined $file_name || $file_name ne $file) {
4656                                print $cgi->a({-href => href(-full=>1, action=>"history",
4657                                                             file_name=>$file, hash=>$commit),
4658                                              -title => "history"}, 'H');
4659                        }
4660                        $file = esc_path($file);
4661                        print "] ".
4662                              "$file</li>\n";
4663                }
4664                if ($format eq 'rss') {
4665                        print "</ul>]]>\n" .
4666                              "</content:encoded>\n" .
4667                              "</item>\n";
4668                } elsif ($format eq 'atom') {
4669                        print "</ul>\n</div>\n" .
4670                              "</content>\n" .
4671                              "</entry>\n";
4672                }
4673        }
4674
4675        # end of feed
4676        if ($format eq 'rss') {
4677                print "</channel>\n</rss>\n";
4678        }       elsif ($format eq 'atom') {
4679                print "</feed>\n";
4680        }
4681}
4682
4683sub git_rss {
4684        git_feed('rss');
4685}
4686
4687sub git_atom {
4688        git_feed('atom');
4689}
4690
4691sub git_opml {
4692        my @list = git_get_projects_list();
4693
4694        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4695        print <<XML;
4696<?xml version="1.0" encoding="utf-8"?>
4697<opml version="1.0">
4698<head>
4699  <title>$site_name OPML Export</title>
4700</head>
4701<body>
4702<outline text="git RSS feeds">
4703XML
4704
4705        foreach my $pr (@list) {
4706                my %proj = %$pr;
4707                my $head = git_get_head_hash($proj{'path'});
4708                if (!defined $head) {
4709                        next;
4710                }
4711                $git_dir = "$projectroot/$proj{'path'}";
4712                my %co = parse_commit($head);
4713                if (!%co) {
4714                        next;
4715                }
4716
4717                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
4718                my $rss  = "$my_url?p=$proj{'path'};a=rss";
4719                my $html = "$my_url?p=$proj{'path'};a=summary";
4720                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
4721        }
4722        print <<XML;
4723</outline>
4724</body>
4725</opml>
4726XML
4727}