7ebdfbbbd5b7011284fd3eb9d78716bc43aeb1cf
   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 beling 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(), 'repo-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 .= " - $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'}, "[$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                #last PATCH unless $patch_line;
2416                my $last_patch_line = $patch_line;
2417
2418                # check if current patch belong to current raw line
2419                # and parse raw git-diff line if needed
2420                if (defined $diffinfo &&
2421                    $diffinfo->{'from_id'} eq $from_id &&
2422                    $diffinfo->{'to_id'}   eq $to_id) {
2423                        # this is split patch
2424                        print "<div class=\"patch cont\">\n";
2425                } else {
2426                        # advance raw git-diff output if needed
2427                        $patch_idx++ if defined $diffinfo;
2428
2429                        # read and prepare patch information
2430                        if (ref($difftree->[$patch_idx]) eq "HASH") {
2431                                # pre-parsed (or generated by hand)
2432                                $diffinfo = $difftree->[$patch_idx];
2433                        } else {
2434                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2435                        }
2436                        $from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2437                        $to{'file'}   = $diffinfo->{'to_file'}   || $diffinfo->{'file'};
2438                        if ($diffinfo->{'status'} ne "A") { # not new (added) file
2439                                $from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2440                                                     hash=>$diffinfo->{'from_id'},
2441                                                     file_name=>$from{'file'});
2442                        } else {
2443                                delete $from{'href'};
2444                        }
2445                        if ($diffinfo->{'status'} ne "D") { # not deleted file
2446                                $to{'href'} = href(action=>"blob", hash_base=>$hash,
2447                                                   hash=>$diffinfo->{'to_id'},
2448                                                   file_name=>$to{'file'});
2449                        } else {
2450                                delete $to{'href'};
2451                        }
2452                        # this is first patch for raw difftree line with $patch_idx index
2453                        # we index @$difftree array from 0, but number patches from 1
2454                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2455                }
2456
2457                # print "git diff" header
2458                $patch_line = shift @diff_header;
2459                $patch_line =~ s!^(diff (.*?) )"?a/.*$!$1!;
2460                if ($from{'href'}) {
2461                        $patch_line .= $cgi->a({-href => $from{'href'}, -class => "path"},
2462                                               'a/' . esc_path($from{'file'}));
2463                } else { # file was added
2464                        $patch_line .= 'a/' . esc_path($from{'file'});
2465                }
2466                $patch_line .= ' ';
2467                if ($to{'href'}) {
2468                        $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2469                                               'b/' . esc_path($to{'file'}));
2470                } else { # file was deleted
2471                        $patch_line .= 'b/' . esc_path($to{'file'});
2472                }
2473                print "<div class=\"diff header\">$patch_line</div>\n";
2474
2475                # print extended diff header
2476                print "<div class=\"diff extended_header\">\n" if (@diff_header > 0);
2477        EXTENDED_HEADER:
2478                foreach $patch_line (@diff_header) {
2479                        # match <path>
2480                        if ($patch_line =~ s!^((copy|rename) from ).*$!$1! && $from{'href'}) {
2481                                $patch_line .= $cgi->a({-href=>$from{'href'}, -class=>"path"},
2482                                                       esc_path($from{'file'}));
2483                        }
2484                        if ($patch_line =~ s!^((copy|rename) to ).*$!$1! && $to{'href'}) {
2485                                $patch_line .= $cgi->a({-href=>$to{'href'}, -class=>"path"},
2486                                                       esc_path($to{'file'}));
2487                        }
2488                        # match <mode>
2489                        if ($patch_line =~ m/\s(\d{6})$/) {
2490                                $patch_line .= '<span class="info"> (' .
2491                                               file_type_long($1) .
2492                                               ')</span>';
2493                        }
2494                        # match <hash>
2495                        if ($patch_line =~ m/^index/) {
2496                                my ($from_link, $to_link);
2497                                if ($from{'href'}) {
2498                                        $from_link = $cgi->a({-href=>$from{'href'}, -class=>"hash"},
2499                                                             substr($diffinfo->{'from_id'},0,7));
2500                                } else {
2501                                        $from_link = '0' x 7;
2502                                }
2503                                if ($to{'href'}) {
2504                                        $to_link = $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2505                                                           substr($diffinfo->{'to_id'},0,7));
2506                                } else {
2507                                        $to_link = '0' x 7;
2508                                }
2509                                #affirm {
2510                                #       my ($from_hash, $to_hash) =
2511                                #               ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/);
2512                                #       my ($from_id, $to_id) =
2513                                #               ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2514                                #       ($from_hash eq $from_id) && ($to_hash eq $to_id);
2515                                #} if DEBUG;
2516                                my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2517                                $patch_line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
2518                        }
2519                        print $patch_line . "<br/>\n";
2520                }
2521                print "</div>\n"  if (@diff_header > 0); # class="diff extended_header"
2522
2523                # from-file/to-file diff header
2524                $patch_line = $last_patch_line;
2525                last PATCH unless $patch_line;
2526                next PATCH if ($patch_line =~ m/^diff /);
2527                #assert($patch_line =~ m/^---/) if DEBUG;
2528                if ($from{'href'}) {
2529                        $patch_line = '--- a/' .
2530                                      $cgi->a({-href=>$from{'href'}, -class=>"path"},
2531                                              esc_path($from{'file'}));
2532                }
2533                print "<div class=\"diff from_file\">$patch_line</div>\n";
2534
2535                $patch_line = <$fd>;
2536                last PATCH unless $patch_line;
2537                chomp $patch_line;
2538
2539                #assert($patch_line =~ m/^+++/) if DEBUG;
2540                if ($to{'href'}) {
2541                        $patch_line = '+++ b/' .
2542                                      $cgi->a({-href=>$to{'href'}, -class=>"path"},
2543                                              esc_path($to{'file'}));
2544                }
2545                print "<div class=\"diff to_file\">$patch_line</div>\n";
2546
2547                # the patch itself
2548        LINE:
2549                while ($patch_line = <$fd>) {
2550                        chomp $patch_line;
2551
2552                        next PATCH if ($patch_line =~ m/^diff /);
2553
2554                        print format_diff_line($patch_line, \%from, \%to);
2555                }
2556
2557        } continue {
2558                print "</div>\n"; # class="patch"
2559        }
2560
2561        print "</div>\n"; # class="patchset"
2562}
2563
2564# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2565
2566sub git_project_list_body {
2567        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2568
2569        my ($check_forks) = gitweb_check_feature('forks');
2570
2571        my @projects;
2572        foreach my $pr (@$projlist) {
2573                my (@aa) = git_get_last_activity($pr->{'path'});
2574                unless (@aa) {
2575                        next;
2576                }
2577                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2578                if (!defined $pr->{'descr'}) {
2579                        my $descr = git_get_project_description($pr->{'path'}) || "";
2580                        $pr->{'descr_long'} = to_utf8($descr);
2581                        $pr->{'descr'} = chop_str($descr, 25, 5);
2582                }
2583                if (!defined $pr->{'owner'}) {
2584                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2585                }
2586                if ($check_forks) {
2587                        my $pname = $pr->{'path'};
2588                        if (($pname =~ s/\.git$//) &&
2589                            ($pname !~ /\/$/) &&
2590                            (-d "$projectroot/$pname")) {
2591                                $pr->{'forks'} = "-d $projectroot/$pname";
2592                        }
2593                        else {
2594                                $pr->{'forks'} = 0;
2595                        }
2596                }
2597                push @projects, $pr;
2598        }
2599
2600        $order ||= "project";
2601        $from = 0 unless defined $from;
2602        $to = $#projects if (!defined $to || $#projects < $to);
2603
2604        print "<table class=\"project_list\">\n";
2605        unless ($no_header) {
2606                print "<tr>\n";
2607                if ($check_forks) {
2608                        print "<th></th>\n";
2609                }
2610                if ($order eq "project") {
2611                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2612                        print "<th>Project</th>\n";
2613                } else {
2614                        print "<th>" .
2615                              $cgi->a({-href => href(project=>undef, order=>'project'),
2616                                       -class => "header"}, "Project") .
2617                              "</th>\n";
2618                }
2619                if ($order eq "descr") {
2620                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2621                        print "<th>Description</th>\n";
2622                } else {
2623                        print "<th>" .
2624                              $cgi->a({-href => href(project=>undef, order=>'descr'),
2625                                       -class => "header"}, "Description") .
2626                              "</th>\n";
2627                }
2628                if ($order eq "owner") {
2629                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2630                        print "<th>Owner</th>\n";
2631                } else {
2632                        print "<th>" .
2633                              $cgi->a({-href => href(project=>undef, order=>'owner'),
2634                                       -class => "header"}, "Owner") .
2635                              "</th>\n";
2636                }
2637                if ($order eq "age") {
2638                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2639                        print "<th>Last Change</th>\n";
2640                } else {
2641                        print "<th>" .
2642                              $cgi->a({-href => href(project=>undef, order=>'age'),
2643                                       -class => "header"}, "Last Change") .
2644                              "</th>\n";
2645                }
2646                print "<th></th>\n" .
2647                      "</tr>\n";
2648        }
2649        my $alternate = 1;
2650        for (my $i = $from; $i <= $to; $i++) {
2651                my $pr = $projects[$i];
2652                if ($alternate) {
2653                        print "<tr class=\"dark\">\n";
2654                } else {
2655                        print "<tr class=\"light\">\n";
2656                }
2657                $alternate ^= 1;
2658                if ($check_forks) {
2659                        print "<td>";
2660                        if ($pr->{'forks'}) {
2661                                print "<!-- $pr->{'forks'} -->\n";
2662                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2663                        }
2664                        print "</td>\n";
2665                }
2666                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2667                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2668                      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2669                                        -class => "list", -title => $pr->{'descr_long'}},
2670                                        esc_html($pr->{'descr'})) . "</td>\n" .
2671                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2672                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2673                      $pr->{'age_string'} . "</td>\n" .
2674                      "<td class=\"link\">" .
2675                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2676                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2677                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2678                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2679                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
2680                      "</td>\n" .
2681                      "</tr>\n";
2682        }
2683        if (defined $extra) {
2684                print "<tr>\n";
2685                if ($check_forks) {
2686                        print "<td></td>\n";
2687                }
2688                print "<td colspan=\"5\">$extra</td>\n" .
2689                      "</tr>\n";
2690        }
2691        print "</table>\n";
2692}
2693
2694sub git_shortlog_body {
2695        # uses global variable $project
2696        my ($commitlist, $from, $to, $refs, $extra) = @_;
2697
2698        my $have_snapshot = gitweb_have_snapshot();
2699
2700        $from = 0 unless defined $from;
2701        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
2702
2703        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2704        my $alternate = 1;
2705        for (my $i = $from; $i <= $to; $i++) {
2706                my %co = %{$commitlist->[$i]};
2707                my $commit = $co{'id'};
2708                my $ref = format_ref_marker($refs, $commit);
2709                if ($alternate) {
2710                        print "<tr class=\"dark\">\n";
2711                } else {
2712                        print "<tr class=\"light\">\n";
2713                }
2714                $alternate ^= 1;
2715                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2716                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2717                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2718                      "<td>";
2719                print format_subject_html($co{'title'}, $co{'title_short'},
2720                                          href(action=>"commit", hash=>$commit), $ref);
2721                print "</td>\n" .
2722                      "<td class=\"link\">" .
2723                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2724                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2725                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2726                if ($have_snapshot) {
2727                        print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2728                }
2729                print "</td>\n" .
2730                      "</tr>\n";
2731        }
2732        if (defined $extra) {
2733                print "<tr>\n" .
2734                      "<td colspan=\"4\">$extra</td>\n" .
2735                      "</tr>\n";
2736        }
2737        print "</table>\n";
2738}
2739
2740sub git_history_body {
2741        # Warning: assumes constant type (blob or tree) during history
2742        my ($commitlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2743
2744        $from = 0 unless defined $from;
2745        $to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
2746
2747        print "<table class=\"history\" cellspacing=\"0\">\n";
2748        my $alternate = 1;
2749        for (my $i = $from; $i <= $to; $i++) {
2750                my %co = %{$commitlist->[$i]};
2751                if (!%co) {
2752                        next;
2753                }
2754                my $commit = $co{'id'};
2755
2756                my $ref = format_ref_marker($refs, $commit);
2757
2758                if ($alternate) {
2759                        print "<tr class=\"dark\">\n";
2760                } else {
2761                        print "<tr class=\"light\">\n";
2762                }
2763                $alternate ^= 1;
2764                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2765                      # shortlog uses      chop_str($co{'author_name'}, 10)
2766                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2767                      "<td>";
2768                # originally git_history used chop_str($co{'title'}, 50)
2769                print format_subject_html($co{'title'}, $co{'title_short'},
2770                                          href(action=>"commit", hash=>$commit), $ref);
2771                print "</td>\n" .
2772                      "<td class=\"link\">" .
2773                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2774                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2775
2776                if ($ftype eq 'blob') {
2777                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2778                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2779                        if (defined $blob_current && defined $blob_parent &&
2780                                        $blob_current ne $blob_parent) {
2781                                print " | " .
2782                                        $cgi->a({-href => href(action=>"blobdiff",
2783                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2784                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2785                                                               file_name=>$file_name)},
2786                                                "diff to current");
2787                        }
2788                }
2789                print "</td>\n" .
2790                      "</tr>\n";
2791        }
2792        if (defined $extra) {
2793                print "<tr>\n" .
2794                      "<td colspan=\"4\">$extra</td>\n" .
2795                      "</tr>\n";
2796        }
2797        print "</table>\n";
2798}
2799
2800sub git_tags_body {
2801        # uses global variable $project
2802        my ($taglist, $from, $to, $extra) = @_;
2803        $from = 0 unless defined $from;
2804        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2805
2806        print "<table class=\"tags\" cellspacing=\"0\">\n";
2807        my $alternate = 1;
2808        for (my $i = $from; $i <= $to; $i++) {
2809                my $entry = $taglist->[$i];
2810                my %tag = %$entry;
2811                my $comment = $tag{'subject'};
2812                my $comment_short;
2813                if (defined $comment) {
2814                        $comment_short = chop_str($comment, 30, 5);
2815                }
2816                if ($alternate) {
2817                        print "<tr class=\"dark\">\n";
2818                } else {
2819                        print "<tr class=\"light\">\n";
2820                }
2821                $alternate ^= 1;
2822                if (defined $tag{'age'}) {
2823                        print "<td><i>$tag{'age'}</i></td>\n";
2824                } else {
2825                        print "<td></td>\n";
2826                }
2827                print "<td>" .
2828                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2829                               -class => "list name"}, esc_html($tag{'name'})) .
2830                      "</td>\n" .
2831                      "<td>";
2832                if (defined $comment) {
2833                        print format_subject_html($comment, $comment_short,
2834                                                  href(action=>"tag", hash=>$tag{'id'}));
2835                }
2836                print "</td>\n" .
2837                      "<td class=\"selflink\">";
2838                if ($tag{'type'} eq "tag") {
2839                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2840                } else {
2841                        print "&nbsp;";
2842                }
2843                print "</td>\n" .
2844                      "<td class=\"link\">" . " | " .
2845                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2846                if ($tag{'reftype'} eq "commit") {
2847                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2848                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
2849                } elsif ($tag{'reftype'} eq "blob") {
2850                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2851                }
2852                print "</td>\n" .
2853                      "</tr>";
2854        }
2855        if (defined $extra) {
2856                print "<tr>\n" .
2857                      "<td colspan=\"5\">$extra</td>\n" .
2858                      "</tr>\n";
2859        }
2860        print "</table>\n";
2861}
2862
2863sub git_heads_body {
2864        # uses global variable $project
2865        my ($headlist, $head, $from, $to, $extra) = @_;
2866        $from = 0 unless defined $from;
2867        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2868
2869        print "<table class=\"heads\" cellspacing=\"0\">\n";
2870        my $alternate = 1;
2871        for (my $i = $from; $i <= $to; $i++) {
2872                my $entry = $headlist->[$i];
2873                my %ref = %$entry;
2874                my $curr = $ref{'id'} eq $head;
2875                if ($alternate) {
2876                        print "<tr class=\"dark\">\n";
2877                } else {
2878                        print "<tr class=\"light\">\n";
2879                }
2880                $alternate ^= 1;
2881                print "<td><i>$ref{'age'}</i></td>\n" .
2882                      ($curr ? "<td class=\"current_head\">" : "<td>") .
2883                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
2884                               -class => "list name"},esc_html($ref{'name'})) .
2885                      "</td>\n" .
2886                      "<td class=\"link\">" .
2887                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
2888                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
2889                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
2890                      "</td>\n" .
2891                      "</tr>";
2892        }
2893        if (defined $extra) {
2894                print "<tr>\n" .
2895                      "<td colspan=\"3\">$extra</td>\n" .
2896                      "</tr>\n";
2897        }
2898        print "</table>\n";
2899}
2900
2901sub git_search_grep_body {
2902        my ($commitlist, $from, $to, $extra) = @_;
2903        $from = 0 unless defined $from;
2904        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
2905
2906        print "<table class=\"grep\" cellspacing=\"0\">\n";
2907        my $alternate = 1;
2908        for (my $i = $from; $i <= $to; $i++) {
2909                my %co = %{$commitlist->[$i]};
2910                if (!%co) {
2911                        next;
2912                }
2913                my $commit = $co{'id'};
2914                if ($alternate) {
2915                        print "<tr class=\"dark\">\n";
2916                } else {
2917                        print "<tr class=\"light\">\n";
2918                }
2919                $alternate ^= 1;
2920                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2921                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2922                      "<td>" .
2923                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
2924                               esc_html(chop_str($co{'title'}, 50)) . "<br/>");
2925                my $comment = $co{'comment'};
2926                foreach my $line (@$comment) {
2927                        if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2928                                my $lead = esc_html($1) || "";
2929                                $lead = chop_str($lead, 30, 10);
2930                                my $match = esc_html($2) || "";
2931                                my $trail = esc_html($3) || "";
2932                                $trail = chop_str($trail, 30, 10);
2933                                my $text = "$lead<span class=\"match\">$match</span>$trail";
2934                                print chop_str($text, 80, 5) . "<br/>\n";
2935                        }
2936                }
2937                print "</td>\n" .
2938                      "<td class=\"link\">" .
2939                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2940                      " | " .
2941                      $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2942                print "</td>\n" .
2943                      "</tr>\n";
2944        }
2945        if (defined $extra) {
2946                print "<tr>\n" .
2947                      "<td colspan=\"3\">$extra</td>\n" .
2948                      "</tr>\n";
2949        }
2950        print "</table>\n";
2951}
2952
2953## ======================================================================
2954## ======================================================================
2955## actions
2956
2957sub git_project_list {
2958        my $order = $cgi->param('o');
2959        if (defined $order && $order !~ m/project|descr|owner|age/) {
2960                die_error(undef, "Unknown order parameter");
2961        }
2962
2963        my @list = git_get_projects_list();
2964        if (!@list) {
2965                die_error(undef, "No projects found");
2966        }
2967
2968        git_header_html();
2969        if (-f $home_text) {
2970                print "<div class=\"index_include\">\n";
2971                open (my $fd, $home_text);
2972                print <$fd>;
2973                close $fd;
2974                print "</div>\n";
2975        }
2976        git_project_list_body(\@list, $order);
2977        git_footer_html();
2978}
2979
2980sub git_forks {
2981        my $order = $cgi->param('o');
2982        if (defined $order && $order !~ m/project|descr|owner|age/) {
2983                die_error(undef, "Unknown order parameter");
2984        }
2985
2986        my @list = git_get_projects_list($project);
2987        if (!@list) {
2988                die_error(undef, "No forks found");
2989        }
2990
2991        git_header_html();
2992        git_print_page_nav('','');
2993        git_print_header_div('summary', "$project forks");
2994        git_project_list_body(\@list, $order);
2995        git_footer_html();
2996}
2997
2998sub git_project_index {
2999        my @projects = git_get_projects_list($project);
3000
3001        print $cgi->header(
3002                -type => 'text/plain',
3003                -charset => 'utf-8',
3004                -content_disposition => 'inline; filename="index.aux"');
3005
3006        foreach my $pr (@projects) {
3007                if (!exists $pr->{'owner'}) {
3008                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}");
3009                }
3010
3011                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
3012                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
3013                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3014                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3015                $path  =~ s/ /\+/g;
3016                $owner =~ s/ /\+/g;
3017
3018                print "$path $owner\n";
3019        }
3020}
3021
3022sub git_summary {
3023        my $descr = git_get_project_description($project) || "none";
3024        my %co = parse_commit("HEAD");
3025        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3026        my $head = $co{'id'};
3027
3028        my $owner = git_get_project_owner($project);
3029
3030        my $refs = git_get_references();
3031        # These get_*_list functions return one more to allow us to see if
3032        # there are more ...
3033        my @taglist  = git_get_tags_list(16);
3034        my @headlist = git_get_heads_list(16);
3035        my @forklist;
3036        my ($check_forks) = gitweb_check_feature('forks');
3037
3038        if ($check_forks) {
3039                @forklist = git_get_projects_list($project);
3040        }
3041
3042        git_header_html();
3043        git_print_page_nav('summary','', $head);
3044
3045        print "<div class=\"title\">&nbsp;</div>\n";
3046        print "<table cellspacing=\"0\">\n" .
3047              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
3048              "<tr><td>owner</td><td>$owner</td></tr>\n" .
3049              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
3050        # use per project git URL list in $projectroot/$project/cloneurl
3051        # or make project git URL from git base URL and project name
3052        my $url_tag = "URL";
3053        my @url_list = git_get_project_url_list($project);
3054        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
3055        foreach my $git_url (@url_list) {
3056                next unless $git_url;
3057                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
3058                $url_tag = "";
3059        }
3060        print "</table>\n";
3061
3062        if (-s "$projectroot/$project/README.html") {
3063                if (open my $fd, "$projectroot/$project/README.html") {
3064                        print "<div class=\"title\">readme</div>\n";
3065                        print $_ while (<$fd>);
3066                        close $fd;
3067                }
3068        }
3069
3070        # we need to request one more than 16 (0..15) to check if
3071        # those 16 are all
3072        my @commitlist = parse_commits($head, 17);
3073        git_print_header_div('shortlog');
3074        git_shortlog_body(\@commitlist, 0, 15, $refs,
3075                          $#commitlist <=  15 ? undef :
3076                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
3077
3078        if (@taglist) {
3079                git_print_header_div('tags');
3080                git_tags_body(\@taglist, 0, 15,
3081                              $#taglist <=  15 ? undef :
3082                              $cgi->a({-href => href(action=>"tags")}, "..."));
3083        }
3084
3085        if (@headlist) {
3086                git_print_header_div('heads');
3087                git_heads_body(\@headlist, $head, 0, 15,
3088                               $#headlist <= 15 ? undef :
3089                               $cgi->a({-href => href(action=>"heads")}, "..."));
3090        }
3091
3092        if (@forklist) {
3093                git_print_header_div('forks');
3094                git_project_list_body(\@forklist, undef, 0, 15,
3095                                      $#forklist <= 15 ? undef :
3096                                      $cgi->a({-href => href(action=>"forks")}, "..."),
3097                                      'noheader');
3098        }
3099
3100        git_footer_html();
3101}
3102
3103sub git_tag {
3104        my $head = git_get_head_hash($project);
3105        git_header_html();
3106        git_print_page_nav('','', $head,undef,$head);
3107        my %tag = parse_tag($hash);
3108        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
3109        print "<div class=\"title_text\">\n" .
3110              "<table cellspacing=\"0\">\n" .
3111              "<tr>\n" .
3112              "<td>object</td>\n" .
3113              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3114                               $tag{'object'}) . "</td>\n" .
3115              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3116                                              $tag{'type'}) . "</td>\n" .
3117              "</tr>\n";
3118        if (defined($tag{'author'})) {
3119                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
3120                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
3121                print "<tr><td></td><td>" . $ad{'rfc2822'} .
3122                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
3123                        "</td></tr>\n";
3124        }
3125        print "</table>\n\n" .
3126              "</div>\n";
3127        print "<div class=\"page_body\">";
3128        my $comment = $tag{'comment'};
3129        foreach my $line (@$comment) {
3130                chomp $line;
3131                print esc_html($line, -nbsp=>1) . "<br/>\n";
3132        }
3133        print "</div>\n";
3134        git_footer_html();
3135}
3136
3137sub git_blame2 {
3138        my $fd;
3139        my $ftype;
3140
3141        my ($have_blame) = gitweb_check_feature('blame');
3142        if (!$have_blame) {
3143                die_error('403 Permission denied', "Permission denied");
3144        }
3145        die_error('404 Not Found', "File name not defined") if (!$file_name);
3146        $hash_base ||= git_get_head_hash($project);
3147        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3148        my %co = parse_commit($hash_base)
3149                or die_error(undef, "Reading commit failed");
3150        if (!defined $hash) {
3151                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3152                        or die_error(undef, "Error looking up file");
3153        }
3154        $ftype = git_get_type($hash);
3155        if ($ftype !~ "blob") {
3156                die_error("400 Bad Request", "Object is not a blob");
3157        }
3158        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
3159              $file_name, $hash_base)
3160                or die_error(undef, "Open git-blame failed");
3161        git_header_html();
3162        my $formats_nav =
3163                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3164                        "blob") .
3165                " | " .
3166                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3167                        "history") .
3168                " | " .
3169                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3170                        "HEAD");
3171        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3172        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3173        git_print_page_path($file_name, $ftype, $hash_base);
3174        my @rev_color = (qw(light2 dark2));
3175        my $num_colors = scalar(@rev_color);
3176        my $current_color = 0;
3177        my $last_rev;
3178        print <<HTML;
3179<div class="page_body">
3180<table class="blame">
3181<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
3182HTML
3183        my %metainfo = ();
3184        while (1) {
3185                $_ = <$fd>;
3186                last unless defined $_;
3187                my ($full_rev, $orig_lineno, $lineno, $group_size) =
3188                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
3189                if (!exists $metainfo{$full_rev}) {
3190                        $metainfo{$full_rev} = {};
3191                }
3192                my $meta = $metainfo{$full_rev};
3193                while (<$fd>) {
3194                        last if (s/^\t//);
3195                        if (/^(\S+) (.*)$/) {
3196                                $meta->{$1} = $2;
3197                        }
3198                }
3199                my $data = $_;
3200                chomp $data;
3201                my $rev = substr($full_rev, 0, 8);
3202                my $author = $meta->{'author'};
3203                my %date = parse_date($meta->{'author-time'},
3204                                      $meta->{'author-tz'});
3205                my $date = $date{'iso-tz'};
3206                if ($group_size) {
3207                        $current_color = ++$current_color % $num_colors;
3208                }
3209                print "<tr class=\"$rev_color[$current_color]\">\n";
3210                if ($group_size) {
3211                        print "<td class=\"sha1\"";
3212                        print " title=\"". esc_html($author) . ", $date\"";
3213                        print " rowspan=\"$group_size\"" if ($group_size > 1);
3214                        print ">";
3215                        print $cgi->a({-href => href(action=>"commit",
3216                                                     hash=>$full_rev,
3217                                                     file_name=>$file_name)},
3218                                      esc_html($rev));
3219                        print "</td>\n";
3220                }
3221                open (my $dd, "-|", git_cmd(), "rev-parse", "$full_rev^")
3222                        or die_error("could not open git-rev-parse");
3223                my $parent_commit = <$dd>;
3224                close $dd;
3225                chomp($parent_commit);
3226                my $blamed = href(action => 'blame',
3227                                  file_name => $meta->{'filename'},
3228                                  hash_base => $parent_commit);
3229                print "<td class=\"linenr\">";
3230                print $cgi->a({ -href => "$blamed#l$orig_lineno",
3231                                -id => "l$lineno",
3232                                -class => "linenr" },
3233                              esc_html($lineno));
3234                print "</td>";
3235                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
3236                print "</tr>\n";
3237        }
3238        print "</table>\n";
3239        print "</div>";
3240        close $fd
3241                or print "Reading blob failed\n";
3242        git_footer_html();
3243}
3244
3245sub git_blame {
3246        my $fd;
3247
3248        my ($have_blame) = gitweb_check_feature('blame');
3249        if (!$have_blame) {
3250                die_error('403 Permission denied', "Permission denied");
3251        }
3252        die_error('404 Not Found', "File name not defined") if (!$file_name);
3253        $hash_base ||= git_get_head_hash($project);
3254        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3255        my %co = parse_commit($hash_base)
3256                or die_error(undef, "Reading commit failed");
3257        if (!defined $hash) {
3258                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3259                        or die_error(undef, "Error lookup file");
3260        }
3261        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
3262                or die_error(undef, "Open git-annotate failed");
3263        git_header_html();
3264        my $formats_nav =
3265                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3266                        "blob") .
3267                " | " .
3268                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3269                        "history") .
3270                " | " .
3271                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3272                        "HEAD");
3273        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3274        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3275        git_print_page_path($file_name, 'blob', $hash_base);
3276        print "<div class=\"page_body\">\n";
3277        print <<HTML;
3278<table class="blame">
3279  <tr>
3280    <th>Commit</th>
3281    <th>Age</th>
3282    <th>Author</th>
3283    <th>Line</th>
3284    <th>Data</th>
3285  </tr>
3286HTML
3287        my @line_class = (qw(light dark));
3288        my $line_class_len = scalar (@line_class);
3289        my $line_class_num = $#line_class;
3290        while (my $line = <$fd>) {
3291                my $long_rev;
3292                my $short_rev;
3293                my $author;
3294                my $time;
3295                my $lineno;
3296                my $data;
3297                my $age;
3298                my $age_str;
3299                my $age_class;
3300
3301                chomp $line;
3302                $line_class_num = ($line_class_num + 1) % $line_class_len;
3303
3304                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
3305                        $long_rev = $1;
3306                        $author   = $2;
3307                        $time     = $3;
3308                        $lineno   = $4;
3309                        $data     = $5;
3310                } else {
3311                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
3312                        next;
3313                }
3314                $short_rev  = substr ($long_rev, 0, 8);
3315                $age        = time () - $time;
3316                $age_str    = age_string ($age);
3317                $age_str    =~ s/ /&nbsp;/g;
3318                $age_class  = age_class($age);
3319                $author     = esc_html ($author);
3320                $author     =~ s/ /&nbsp;/g;
3321
3322                $data = untabify($data);
3323                $data = esc_html ($data);
3324
3325                print <<HTML;
3326  <tr class="$line_class[$line_class_num]">
3327    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
3328    <td class="$age_class">$age_str</td>
3329    <td>$author</td>
3330    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
3331    <td class="pre">$data</td>
3332  </tr>
3333HTML
3334        } # while (my $line = <$fd>)
3335        print "</table>\n\n";
3336        close $fd
3337                or print "Reading blob failed.\n";
3338        print "</div>";
3339        git_footer_html();
3340}
3341
3342sub git_tags {
3343        my $head = git_get_head_hash($project);
3344        git_header_html();
3345        git_print_page_nav('','', $head,undef,$head);
3346        git_print_header_div('summary', $project);
3347
3348        my @tagslist = git_get_tags_list();
3349        if (@tagslist) {
3350                git_tags_body(\@tagslist);
3351        }
3352        git_footer_html();
3353}
3354
3355sub git_heads {
3356        my $head = git_get_head_hash($project);
3357        git_header_html();
3358        git_print_page_nav('','', $head,undef,$head);
3359        git_print_header_div('summary', $project);
3360
3361        my @headslist = git_get_heads_list();
3362        if (@headslist) {
3363                git_heads_body(\@headslist, $head);
3364        }
3365        git_footer_html();
3366}
3367
3368sub git_blob_plain {
3369        my $expires;
3370
3371        if (!defined $hash) {
3372                if (defined $file_name) {
3373                        my $base = $hash_base || git_get_head_hash($project);
3374                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3375                                or die_error(undef, "Error lookup file");
3376                } else {
3377                        die_error(undef, "No file name defined");
3378                }
3379        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3380                # blobs defined by non-textual hash id's can be cached
3381                $expires = "+1d";
3382        }
3383
3384        my $type = shift;
3385        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3386                or die_error(undef, "Couldn't cat $file_name, $hash");
3387
3388        $type ||= blob_mimetype($fd, $file_name);
3389
3390        # save as filename, even when no $file_name is given
3391        my $save_as = "$hash";
3392        if (defined $file_name) {
3393                $save_as = $file_name;
3394        } elsif ($type =~ m/^text\//) {
3395                $save_as .= '.txt';
3396        }
3397
3398        print $cgi->header(
3399                -type => "$type",
3400                -expires=>$expires,
3401                -content_disposition => 'inline; filename="' . "$save_as" . '"');
3402        undef $/;
3403        binmode STDOUT, ':raw';
3404        print <$fd>;
3405        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3406        $/ = "\n";
3407        close $fd;
3408}
3409
3410sub git_blob {
3411        my $expires;
3412
3413        if (!defined $hash) {
3414                if (defined $file_name) {
3415                        my $base = $hash_base || git_get_head_hash($project);
3416                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3417                                or die_error(undef, "Error lookup file");
3418                } else {
3419                        die_error(undef, "No file name defined");
3420                }
3421        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3422                # blobs defined by non-textual hash id's can be cached
3423                $expires = "+1d";
3424        }
3425
3426        my ($have_blame) = gitweb_check_feature('blame');
3427        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3428                or die_error(undef, "Couldn't cat $file_name, $hash");
3429        my $mimetype = blob_mimetype($fd, $file_name);
3430        if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)!) {
3431                close $fd;
3432                return git_blob_plain($mimetype);
3433        }
3434        # we can have blame only for text/* mimetype
3435        $have_blame &&= ($mimetype =~ m!^text/!);
3436
3437        git_header_html(undef, $expires);
3438        my $formats_nav = '';
3439        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3440                if (defined $file_name) {
3441                        if ($have_blame) {
3442                                $formats_nav .=
3443                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3444                                                               hash=>$hash, file_name=>$file_name)},
3445                                                "blame") .
3446                                        " | ";
3447                        }
3448                        $formats_nav .=
3449                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3450                                                       hash=>$hash, file_name=>$file_name)},
3451                                        "history") .
3452                                " | " .
3453                                $cgi->a({-href => href(action=>"blob_plain",
3454                                                       hash=>$hash, file_name=>$file_name)},
3455                                        "raw") .
3456                                " | " .
3457                                $cgi->a({-href => href(action=>"blob",
3458                                                       hash_base=>"HEAD", file_name=>$file_name)},
3459                                        "HEAD");
3460                } else {
3461                        $formats_nav .=
3462                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3463                }
3464                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3465                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3466        } else {
3467                print "<div class=\"page_nav\">\n" .
3468                      "<br/><br/></div>\n" .
3469                      "<div class=\"title\">$hash</div>\n";
3470        }
3471        git_print_page_path($file_name, "blob", $hash_base);
3472        print "<div class=\"page_body\">\n";
3473        if ($mimetype =~ m!^text/!) {
3474                my $nr;
3475                while (my $line = <$fd>) {
3476                        chomp $line;
3477                        $nr++;
3478                        $line = untabify($line);
3479                        printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3480                               $nr, $nr, $nr, esc_html($line, -nbsp=>1);
3481                }
3482        } elsif ($mimetype =~ m!^image/!) {
3483                print qq!<img type="$mimetype"!;
3484                if ($file_name) {
3485                        print qq! alt="$file_name" title="$file_name"!;
3486                }
3487                print qq! src="! .
3488                      href(action=>"blob_plain", hash=>$hash,
3489                           hash_base=>$hash_base, file_name=>$file_name) .
3490                      qq!" />\n!;
3491        }
3492        close $fd
3493                or print "Reading blob failed.\n";
3494        print "</div>";
3495        git_footer_html();
3496}
3497
3498sub git_tree {
3499        my $have_snapshot = gitweb_have_snapshot();
3500
3501        if (!defined $hash_base) {
3502                $hash_base = "HEAD";
3503        }
3504        if (!defined $hash) {
3505                if (defined $file_name) {
3506                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3507                } else {
3508                        $hash = $hash_base;
3509                }
3510        }
3511        $/ = "\0";
3512        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3513                or die_error(undef, "Open git-ls-tree failed");
3514        my @entries = map { chomp; $_ } <$fd>;
3515        close $fd or die_error(undef, "Reading tree failed");
3516        $/ = "\n";
3517
3518        my $refs = git_get_references();
3519        my $ref = format_ref_marker($refs, $hash_base);
3520        git_header_html();
3521        my $basedir = '';
3522        my ($have_blame) = gitweb_check_feature('blame');
3523        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3524                my @views_nav = ();
3525                if (defined $file_name) {
3526                        push @views_nav,
3527                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3528                                                       hash=>$hash, file_name=>$file_name)},
3529                                        "history"),
3530                                $cgi->a({-href => href(action=>"tree",
3531                                                       hash_base=>"HEAD", file_name=>$file_name)},
3532                                        "HEAD"),
3533                }
3534                if ($have_snapshot) {
3535                        # FIXME: Should be available when we have no hash base as well.
3536                        push @views_nav,
3537                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3538                                        "snapshot");
3539                }
3540                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3541                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3542        } else {
3543                undef $hash_base;
3544                print "<div class=\"page_nav\">\n";
3545                print "<br/><br/></div>\n";
3546                print "<div class=\"title\">$hash</div>\n";
3547        }
3548        if (defined $file_name) {
3549                $basedir = $file_name;
3550                if ($basedir ne '' && substr($basedir, -1) ne '/') {
3551                        $basedir .= '/';
3552                }
3553        }
3554        git_print_page_path($file_name, 'tree', $hash_base);
3555        print "<div class=\"page_body\">\n";
3556        print "<table cellspacing=\"0\">\n";
3557        my $alternate = 1;
3558        # '..' (top directory) link if possible
3559        if (defined $hash_base &&
3560            defined $file_name && $file_name =~ m![^/]+$!) {
3561                if ($alternate) {
3562                        print "<tr class=\"dark\">\n";
3563                } else {
3564                        print "<tr class=\"light\">\n";
3565                }
3566                $alternate ^= 1;
3567
3568                my $up = $file_name;
3569                $up =~ s!/?[^/]+$!!;
3570                undef $up unless $up;
3571                # based on git_print_tree_entry
3572                print '<td class="mode">' . mode_str('040000') . "</td>\n";
3573                print '<td class="list">';
3574                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3575                                             file_name=>$up)},
3576                              "..");
3577                print "</td>\n";
3578                print "<td class=\"link\"></td>\n";
3579
3580                print "</tr>\n";
3581        }
3582        foreach my $line (@entries) {
3583                my %t = parse_ls_tree_line($line, -z => 1);
3584
3585                if ($alternate) {
3586                        print "<tr class=\"dark\">\n";
3587                } else {
3588                        print "<tr class=\"light\">\n";
3589                }
3590                $alternate ^= 1;
3591
3592                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3593
3594                print "</tr>\n";
3595        }
3596        print "</table>\n" .
3597              "</div>";
3598        git_footer_html();
3599}
3600
3601sub git_snapshot {
3602        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3603        my $have_snapshot = (defined $ctype && defined $suffix);
3604        if (!$have_snapshot) {
3605                die_error('403 Permission denied', "Permission denied");
3606        }
3607
3608        if (!defined $hash) {
3609                $hash = git_get_head_hash($project);
3610        }
3611
3612        my $filename = basename($project) . "-$hash.tar.$suffix";
3613
3614        print $cgi->header(
3615                -type => "application/$ctype",
3616                -content_disposition => 'inline; filename="' . "$filename" . '"',
3617                -status => '200 OK');
3618
3619        my $git = git_cmd_str();
3620        my $name = $project;
3621        $name =~ s/\047/\047\\\047\047/g;
3622        open my $fd, "-|",
3623        "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3624                or die_error(undef, "Execute git-tar-tree failed.");
3625        binmode STDOUT, ':raw';
3626        print <$fd>;
3627        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3628        close $fd;
3629
3630}
3631
3632sub git_log {
3633        my $head = git_get_head_hash($project);
3634        if (!defined $hash) {
3635                $hash = $head;
3636        }
3637        if (!defined $page) {
3638                $page = 0;
3639        }
3640        my $refs = git_get_references();
3641
3642        my @commitlist = parse_commits($hash, 101, (100 * $page));
3643
3644        my $paging_nav = format_paging_nav('log', $hash, $head, $page, (100 * ($page+1)));
3645
3646        git_header_html();
3647        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3648
3649        if (!@commitlist) {
3650                my %co = parse_commit($hash);
3651
3652                git_print_header_div('summary', $project);
3653                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3654        }
3655        my $to = ($#commitlist >= 99) ? (99) : ($#commitlist);
3656        for (my $i = 0; $i <= $to; $i++) {
3657                my %co = %{$commitlist[$i]};
3658                next if !%co;
3659                my $commit = $co{'id'};
3660                my $ref = format_ref_marker($refs, $commit);
3661                my %ad = parse_date($co{'author_epoch'});
3662                git_print_header_div('commit',
3663                               "<span class=\"age\">$co{'age_string'}</span>" .
3664                               esc_html($co{'title'}) . $ref,
3665                               $commit);
3666                print "<div class=\"title_text\">\n" .
3667                      "<div class=\"log_link\">\n" .
3668                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3669                      " | " .
3670                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3671                      " | " .
3672                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3673                      "<br/>\n" .
3674                      "</div>\n" .
3675                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3676                      "</div>\n";
3677
3678                print "<div class=\"log_body\">\n";
3679                git_print_log($co{'comment'}, -final_empty_line=> 1);
3680                print "</div>\n";
3681        }
3682        if ($#commitlist >= 100) {
3683                print "<div class=\"page_nav\">\n";
3684                print $cgi->a({-href => href(action=>"log", hash=>$hash, page=>$page+1),
3685                               -accesskey => "n", -title => "Alt-n"}, "next");
3686                print "</div>\n";
3687        }
3688        git_footer_html();
3689}
3690
3691sub git_commit {
3692        $hash ||= $hash_base || "HEAD";
3693        my %co = parse_commit($hash);
3694        if (!%co) {
3695                die_error(undef, "Unknown commit object");
3696        }
3697        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3698        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3699
3700        my $parent  = $co{'parent'};
3701        my $parents = $co{'parents'}; # listref
3702
3703        # we need to prepare $formats_nav before any parameter munging
3704        my $formats_nav;
3705        if (!defined $parent) {
3706                # --root commitdiff
3707                $formats_nav .= '(initial)';
3708        } elsif (@$parents == 1) {
3709                # single parent commit
3710                $formats_nav .=
3711                        '(parent: ' .
3712                        $cgi->a({-href => href(action=>"commit",
3713                                               hash=>$parent)},
3714                                esc_html(substr($parent, 0, 7))) .
3715                        ')';
3716        } else {
3717                # merge commit
3718                $formats_nav .=
3719                        '(merge: ' .
3720                        join(' ', map {
3721                                $cgi->a({-href => href(action=>"commitdiff",
3722                                                       hash=>$_)},
3723                                        esc_html(substr($_, 0, 7)));
3724                        } @$parents ) .
3725                        ')';
3726        }
3727
3728        if (!defined $parent) {
3729                $parent = "--root";
3730        }
3731        my @difftree;
3732        if (@$parents <= 1) {
3733                # difftree output is not printed for merges
3734                open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
3735                        @diff_opts, $parent, $hash, "--"
3736                                or die_error(undef, "Open git-diff-tree failed");
3737                @difftree = map { chomp; $_ } <$fd>;
3738                close $fd or die_error(undef, "Reading git-diff-tree failed");
3739        }
3740
3741        # non-textual hash id's can be cached
3742        my $expires;
3743        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3744                $expires = "+1d";
3745        }
3746        my $refs = git_get_references();
3747        my $ref = format_ref_marker($refs, $co{'id'});
3748
3749        my $have_snapshot = gitweb_have_snapshot();
3750
3751        git_header_html(undef, $expires);
3752        git_print_page_nav('commit', '',
3753                           $hash, $co{'tree'}, $hash,
3754                           $formats_nav);
3755
3756        if (defined $co{'parent'}) {
3757                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3758        } else {
3759                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3760        }
3761        print "<div class=\"title_text\">\n" .
3762              "<table cellspacing=\"0\">\n";
3763        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3764              "<tr>" .
3765              "<td></td><td> $ad{'rfc2822'}";
3766        if ($ad{'hour_local'} < 6) {
3767                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3768                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3769        } else {
3770                printf(" (%02d:%02d %s)",
3771                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3772        }
3773        print "</td>" .
3774              "</tr>\n";
3775        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3776        print "<tr><td></td><td> $cd{'rfc2822'}" .
3777              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3778              "</td></tr>\n";
3779        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3780        print "<tr>" .
3781              "<td>tree</td>" .
3782              "<td class=\"sha1\">" .
3783              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3784                       class => "list"}, $co{'tree'}) .
3785              "</td>" .
3786              "<td class=\"link\">" .
3787              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3788                      "tree");
3789        if ($have_snapshot) {
3790                print " | " .
3791                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3792        }
3793        print "</td>" .
3794              "</tr>\n";
3795
3796        foreach my $par (@$parents) {
3797                print "<tr>" .
3798                      "<td>parent</td>" .
3799                      "<td class=\"sha1\">" .
3800                      $cgi->a({-href => href(action=>"commit", hash=>$par),
3801                               class => "list"}, $par) .
3802                      "</td>" .
3803                      "<td class=\"link\">" .
3804                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3805                      " | " .
3806                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3807                      "</td>" .
3808                      "</tr>\n";
3809        }
3810        print "</table>".
3811              "</div>\n";
3812
3813        print "<div class=\"page_body\">\n";
3814        git_print_log($co{'comment'});
3815        print "</div>\n";
3816
3817        if (@$parents <= 1) {
3818                # do not output difftree/whatchanged for merges
3819                git_difftree_body(\@difftree, $hash, $parent);
3820        }
3821
3822        git_footer_html();
3823}
3824
3825sub git_object {
3826        # object is defined by:
3827        # - hash or hash_base alone
3828        # - hash_base and file_name
3829        my $type;
3830
3831        # - hash or hash_base alone
3832        if ($hash || ($hash_base && !defined $file_name)) {
3833                my $object_id = $hash || $hash_base;
3834
3835                my $git_command = git_cmd_str();
3836                open my $fd, "-|", "$git_command cat-file -t $object_id 2>/dev/null"
3837                        or die_error('404 Not Found', "Object does not exist");
3838                $type = <$fd>;
3839                chomp $type;
3840                close $fd
3841                        or die_error('404 Not Found', "Object does not exist");
3842
3843        # - hash_base and file_name
3844        } elsif ($hash_base && defined $file_name) {
3845                $file_name =~ s,/+$,,;
3846
3847                system(git_cmd(), "cat-file", '-e', $hash_base) == 0
3848                        or die_error('404 Not Found', "Base object does not exist");
3849
3850                # here errors should not hapen
3851                open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
3852                        or die_error(undef, "Open git-ls-tree failed");
3853                my $line = <$fd>;
3854                close $fd;
3855
3856                #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
3857                unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
3858                        die_error('404 Not Found', "File or directory for given base does not exist");
3859                }
3860                $type = $2;
3861                $hash = $3;
3862        } else {
3863                die_error('404 Not Found', "Not enough information to find object");
3864        }
3865
3866        print $cgi->redirect(-uri => href(action=>$type, -full=>1,
3867                                          hash=>$hash, hash_base=>$hash_base,
3868                                          file_name=>$file_name),
3869                             -status => '302 Found');
3870}
3871
3872sub git_blobdiff {
3873        my $format = shift || 'html';
3874
3875        my $fd;
3876        my @difftree;
3877        my %diffinfo;
3878        my $expires;
3879
3880        # preparing $fd and %diffinfo for git_patchset_body
3881        # new style URI
3882        if (defined $hash_base && defined $hash_parent_base) {
3883                if (defined $file_name) {
3884                        # read raw output
3885                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3886                                $hash_parent_base, $hash_base,
3887                                "--", $file_name
3888                                or die_error(undef, "Open git-diff-tree failed");
3889                        @difftree = map { chomp; $_ } <$fd>;
3890                        close $fd
3891                                or die_error(undef, "Reading git-diff-tree failed");
3892                        @difftree
3893                                or die_error('404 Not Found', "Blob diff not found");
3894
3895                } elsif (defined $hash &&
3896                         $hash =~ /[0-9a-fA-F]{40}/) {
3897                        # try to find filename from $hash
3898
3899                        # read filtered raw output
3900                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3901                                $hash_parent_base, $hash_base, "--"
3902                                or die_error(undef, "Open git-diff-tree failed");
3903                        @difftree =
3904                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3905                                # $hash == to_id
3906                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3907                                map { chomp; $_ } <$fd>;
3908                        close $fd
3909                                or die_error(undef, "Reading git-diff-tree failed");
3910                        @difftree
3911                                or die_error('404 Not Found', "Blob diff not found");
3912
3913                } else {
3914                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3915                }
3916
3917                if (@difftree > 1) {
3918                        die_error('404 Not Found', "Ambiguous blob diff specification");
3919                }
3920
3921                %diffinfo = parse_difftree_raw_line($difftree[0]);
3922                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3923                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3924
3925                $hash_parent ||= $diffinfo{'from_id'};
3926                $hash        ||= $diffinfo{'to_id'};
3927
3928                # non-textual hash id's can be cached
3929                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3930                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3931                        $expires = '+1d';
3932                }
3933
3934                # open patch output
3935                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3936                        '-p', $hash_parent_base, $hash_base,
3937                        "--", $file_name
3938                        or die_error(undef, "Open git-diff-tree failed");
3939        }
3940
3941        # old/legacy style URI
3942        if (!%diffinfo && # if new style URI failed
3943            defined $hash && defined $hash_parent) {
3944                # fake git-diff-tree raw output
3945                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3946                $diffinfo{'from_id'} = $hash_parent;
3947                $diffinfo{'to_id'}   = $hash;
3948                if (defined $file_name) {
3949                        if (defined $file_parent) {
3950                                $diffinfo{'status'} = '2';
3951                                $diffinfo{'from_file'} = $file_parent;
3952                                $diffinfo{'to_file'}   = $file_name;
3953                        } else { # assume not renamed
3954                                $diffinfo{'status'} = '1';
3955                                $diffinfo{'from_file'} = $file_name;
3956                                $diffinfo{'to_file'}   = $file_name;
3957                        }
3958                } else { # no filename given
3959                        $diffinfo{'status'} = '2';
3960                        $diffinfo{'from_file'} = $hash_parent;
3961                        $diffinfo{'to_file'}   = $hash;
3962                }
3963
3964                # non-textual hash id's can be cached
3965                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3966                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3967                        $expires = '+1d';
3968                }
3969
3970                # open patch output
3971                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts,
3972                        $hash_parent, $hash, "--"
3973                        or die_error(undef, "Open git-diff failed");
3974        } else  {
3975                die_error('404 Not Found', "Missing one of the blob diff parameters")
3976                        unless %diffinfo;
3977        }
3978
3979        # header
3980        if ($format eq 'html') {
3981                my $formats_nav =
3982                        $cgi->a({-href => href(action=>"blobdiff_plain",
3983                                               hash=>$hash, hash_parent=>$hash_parent,
3984                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3985                                               file_name=>$file_name, file_parent=>$file_parent)},
3986                                "raw");
3987                git_header_html(undef, $expires);
3988                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3989                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3990                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3991                } else {
3992                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3993                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3994                }
3995                if (defined $file_name) {
3996                        git_print_page_path($file_name, "blob", $hash_base);
3997                } else {
3998                        print "<div class=\"page_path\"></div>\n";
3999                }
4000
4001        } elsif ($format eq 'plain') {
4002                print $cgi->header(
4003                        -type => 'text/plain',
4004                        -charset => 'utf-8',
4005                        -expires => $expires,
4006                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
4007
4008                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4009
4010        } else {
4011                die_error(undef, "Unknown blobdiff format");
4012        }
4013
4014        # patch
4015        if ($format eq 'html') {
4016                print "<div class=\"page_body\">\n";
4017
4018                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
4019                close $fd;
4020
4021                print "</div>\n"; # class="page_body"
4022                git_footer_html();
4023
4024        } else {
4025                while (my $line = <$fd>) {
4026                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
4027                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
4028
4029                        print $line;
4030
4031                        last if $line =~ m!^\+\+\+!;
4032                }
4033                local $/ = undef;
4034                print <$fd>;
4035                close $fd;
4036        }
4037}
4038
4039sub git_blobdiff_plain {
4040        git_blobdiff('plain');
4041}
4042
4043sub git_commitdiff {
4044        my $format = shift || 'html';
4045        $hash ||= $hash_base || "HEAD";
4046        my %co = parse_commit($hash);
4047        if (!%co) {
4048                die_error(undef, "Unknown commit object");
4049        }
4050
4051        # we need to prepare $formats_nav before any parameter munging
4052        my $formats_nav;
4053        if ($format eq 'html') {
4054                $formats_nav =
4055                        $cgi->a({-href => href(action=>"commitdiff_plain",
4056                                               hash=>$hash, hash_parent=>$hash_parent)},
4057                                "raw");
4058
4059                if (defined $hash_parent) {
4060                        # commitdiff with two commits given
4061                        my $hash_parent_short = $hash_parent;
4062                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4063                                $hash_parent_short = substr($hash_parent, 0, 7);
4064                        }
4065                        $formats_nav .=
4066                                ' (from: ' .
4067                                $cgi->a({-href => href(action=>"commitdiff",
4068                                                       hash=>$hash_parent)},
4069                                        esc_html($hash_parent_short)) .
4070                                ')';
4071                } elsif (!$co{'parent'}) {
4072                        # --root commitdiff
4073                        $formats_nav .= ' (initial)';
4074                } elsif (scalar @{$co{'parents'}} == 1) {
4075                        # single parent commit
4076                        $formats_nav .=
4077                                ' (parent: ' .
4078                                $cgi->a({-href => href(action=>"commitdiff",
4079                                                       hash=>$co{'parent'})},
4080                                        esc_html(substr($co{'parent'}, 0, 7))) .
4081                                ')';
4082                } else {
4083                        # merge commit
4084                        $formats_nav .=
4085                                ' (merge: ' .
4086                                join(' ', map {
4087                                        $cgi->a({-href => href(action=>"commitdiff",
4088                                                               hash=>$_)},
4089                                                esc_html(substr($_, 0, 7)));
4090                                } @{$co{'parents'}} ) .
4091                                ')';
4092                }
4093        }
4094
4095        if (!defined $hash_parent) {
4096                $hash_parent = $co{'parent'} || '--root';
4097        }
4098
4099        # read commitdiff
4100        my $fd;
4101        my @difftree;
4102        if ($format eq 'html') {
4103                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4104                        "--no-commit-id", "--patch-with-raw", "--full-index",
4105                        $hash_parent, $hash, "--"
4106                        or die_error(undef, "Open git-diff-tree failed");
4107
4108                while (my $line = <$fd>) {
4109                        chomp $line;
4110                        # empty line ends raw part of diff-tree output
4111                        last unless $line;
4112                        push @difftree, $line;
4113                }
4114
4115        } elsif ($format eq 'plain') {
4116                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4117                        '-p', $hash_parent, $hash, "--"
4118                        or die_error(undef, "Open git-diff-tree failed");
4119
4120        } else {
4121                die_error(undef, "Unknown commitdiff format");
4122        }
4123
4124        # non-textual hash id's can be cached
4125        my $expires;
4126        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4127                $expires = "+1d";
4128        }
4129
4130        # write commit message
4131        if ($format eq 'html') {
4132                my $refs = git_get_references();
4133                my $ref = format_ref_marker($refs, $co{'id'});
4134
4135                git_header_html(undef, $expires);
4136                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
4137                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
4138                git_print_authorship(\%co);
4139                print "<div class=\"page_body\">\n";
4140                if (@{$co{'comment'}} > 1) {
4141                        print "<div class=\"log\">\n";
4142                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
4143                        print "</div>\n"; # class="log"
4144                }
4145
4146        } elsif ($format eq 'plain') {
4147                my $refs = git_get_references("tags");
4148                my $tagname = git_get_rev_name_tags($hash);
4149                my $filename = basename($project) . "-$hash.patch";
4150
4151                print $cgi->header(
4152                        -type => 'text/plain',
4153                        -charset => 'utf-8',
4154                        -expires => $expires,
4155                        -content_disposition => 'inline; filename="' . "$filename" . '"');
4156                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4157                print <<TEXT;
4158From: $co{'author'}
4159Date: $ad{'rfc2822'} ($ad{'tz_local'})
4160Subject: $co{'title'}
4161TEXT
4162                print "X-Git-Tag: $tagname\n" if $tagname;
4163                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4164
4165                foreach my $line (@{$co{'comment'}}) {
4166                        print "$line\n";
4167                }
4168                print "---\n\n";
4169        }
4170
4171        # write patch
4172        if ($format eq 'html') {
4173                git_difftree_body(\@difftree, $hash, $hash_parent);
4174                print "<br/>\n";
4175
4176                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
4177                close $fd;
4178                print "</div>\n"; # class="page_body"
4179                git_footer_html();
4180
4181        } elsif ($format eq 'plain') {
4182                local $/ = undef;
4183                print <$fd>;
4184                close $fd
4185                        or print "Reading git-diff-tree failed\n";
4186        }
4187}
4188
4189sub git_commitdiff_plain {
4190        git_commitdiff('plain');
4191}
4192
4193sub git_history {
4194        if (!defined $hash_base) {
4195                $hash_base = git_get_head_hash($project);
4196        }
4197        if (!defined $page) {
4198                $page = 0;
4199        }
4200        my $ftype;
4201        my %co = parse_commit($hash_base);
4202        if (!%co) {
4203                die_error(undef, "Unknown commit object");
4204        }
4205
4206        my $refs = git_get_references();
4207        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4208
4209        if (!defined $hash && defined $file_name) {
4210                $hash = git_get_hash_by_path($hash_base, $file_name);
4211        }
4212        if (defined $hash) {
4213                $ftype = git_get_type($hash);
4214        }
4215
4216        my @commitlist = parse_commits($hash_base, 101, (100 * $page), "--full-history", $file_name);
4217
4218        my $paging_nav = '';
4219        if ($page > 0) {
4220                $paging_nav .=
4221                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4222                                               file_name=>$file_name)},
4223                                "first");
4224                $paging_nav .= " &sdot; " .
4225                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4226                                               file_name=>$file_name, page=>$page-1),
4227                                 -accesskey => "p", -title => "Alt-p"}, "prev");
4228        } else {
4229                $paging_nav .= "first";
4230                $paging_nav .= " &sdot; prev";
4231        }
4232        if ($#commitlist >= 100) {
4233                $paging_nav .= " &sdot; " .
4234                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4235                                               file_name=>$file_name, page=>$page+1),
4236                                 -accesskey => "n", -title => "Alt-n"}, "next");
4237        } else {
4238                $paging_nav .= " &sdot; next";
4239        }
4240        my $next_link = '';
4241        if ($#commitlist >= 100) {
4242                $next_link =
4243                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4244                                               file_name=>$file_name, page=>$page+1),
4245                                 -accesskey => "n", -title => "Alt-n"}, "next");
4246        }
4247
4248        git_header_html();
4249        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
4250        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4251        git_print_page_path($file_name, $ftype, $hash_base);
4252
4253        git_history_body(\@commitlist, 0, 99,
4254                         $refs, $hash_base, $ftype, $next_link);
4255
4256        git_footer_html();
4257}
4258
4259sub git_search {
4260        my ($have_search) = gitweb_check_feature('search');
4261        if (!$have_search) {
4262                die_error('403 Permission denied', "Permission denied");
4263        }
4264        if (!defined $searchtext) {
4265                die_error(undef, "Text field empty");
4266        }
4267        if (!defined $hash) {
4268                $hash = git_get_head_hash($project);
4269        }
4270        my %co = parse_commit($hash);
4271        if (!%co) {
4272                die_error(undef, "Unknown commit object");
4273        }
4274        if (!defined $page) {
4275                $page = 0;
4276        }
4277
4278        $searchtype ||= 'commit';
4279        if ($searchtype eq 'pickaxe') {
4280                # pickaxe may take all resources of your box and run for several minutes
4281                # with every query - so decide by yourself how public you make this feature
4282                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4283                if (!$have_pickaxe) {
4284                        die_error('403 Permission denied', "Permission denied");
4285                }
4286        }
4287
4288        git_header_html();
4289
4290        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
4291                my $greptype;
4292                if ($searchtype eq 'commit') {
4293                        $greptype = "--grep=";
4294                } elsif ($searchtype eq 'author') {
4295                        $greptype = "--author=";
4296                } elsif ($searchtype eq 'committer') {
4297                        $greptype = "--committer=";
4298                }
4299                $greptype .= $searchtext;
4300                my @commitlist = parse_commits($hash, 101, (100 * $page), $greptype);
4301
4302                my $paging_nav = '';
4303                if ($page > 0) {
4304                        $paging_nav .=
4305                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4306                                                       searchtext=>$searchtext, searchtype=>$searchtype)},
4307                                        "first");
4308                        $paging_nav .= " &sdot; " .
4309                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4310                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4311                                                       page=>$page-1),
4312                                         -accesskey => "p", -title => "Alt-p"}, "prev");
4313                } else {
4314                        $paging_nav .= "first";
4315                        $paging_nav .= " &sdot; prev";
4316                }
4317                if ($#commitlist >= 100) {
4318                        $paging_nav .= " &sdot; " .
4319                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4320                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4321                                                       page=>$page+1),
4322                                         -accesskey => "n", -title => "Alt-n"}, "next");
4323                } else {
4324                        $paging_nav .= " &sdot; next";
4325                }
4326                my $next_link = '';
4327                if ($#commitlist >= 100) {
4328                        $next_link =
4329                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4330                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4331                                                       page=>$page+1),
4332                                         -accesskey => "n", -title => "Alt-n"}, "next");
4333                }
4334
4335                git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
4336                git_print_header_div('commit', esc_html($co{'title'}), $hash);
4337                git_search_grep_body(\@commitlist, 0, 99, $next_link);
4338        }
4339
4340        if ($searchtype eq 'pickaxe') {
4341                git_print_page_nav('','', $hash,$co{'tree'},$hash);
4342                git_print_header_div('commit', esc_html($co{'title'}), $hash);
4343
4344                print "<table cellspacing=\"0\">\n";
4345                my $alternate = 1;
4346                $/ = "\n";
4347                my $git_command = git_cmd_str();
4348                open my $fd, "-|", "$git_command rev-list $hash | " .
4349                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
4350                undef %co;
4351                my @files;
4352                while (my $line = <$fd>) {
4353                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
4354                                my %set;
4355                                $set{'file'} = $6;
4356                                $set{'from_id'} = $3;
4357                                $set{'to_id'} = $4;
4358                                $set{'id'} = $set{'to_id'};
4359                                if ($set{'id'} =~ m/0{40}/) {
4360                                        $set{'id'} = $set{'from_id'};
4361                                }
4362                                if ($set{'id'} =~ m/0{40}/) {
4363                                        next;
4364                                }
4365                                push @files, \%set;
4366                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
4367                                if (%co) {
4368                                        if ($alternate) {
4369                                                print "<tr class=\"dark\">\n";
4370                                        } else {
4371                                                print "<tr class=\"light\">\n";
4372                                        }
4373                                        $alternate ^= 1;
4374                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4375                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4376                                              "<td>" .
4377                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
4378                                                      -class => "list subject"},
4379                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4380                                        while (my $setref = shift @files) {
4381                                                my %set = %$setref;
4382                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
4383                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
4384                                                              -class => "list"},
4385                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
4386                                                      "<br/>\n";
4387                                        }
4388                                        print "</td>\n" .
4389                                              "<td class=\"link\">" .
4390                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4391                                              " | " .
4392                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4393                                        print "</td>\n" .
4394                                              "</tr>\n";
4395                                }
4396                                %co = parse_commit($1);
4397                        }
4398                }
4399                close $fd;
4400
4401                print "</table>\n";
4402        }
4403        git_footer_html();
4404}
4405
4406sub git_search_help {
4407        git_header_html();
4408        git_print_page_nav('','', $hash,$hash,$hash);
4409        print <<EOT;
4410<dl>
4411<dt><b>commit</b></dt>
4412<dd>The commit messages and authorship information will be scanned for the given string.</dd>
4413<dt><b>author</b></dt>
4414<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
4415<dt><b>committer</b></dt>
4416<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
4417EOT
4418        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4419        if ($have_pickaxe) {
4420                print <<EOT;
4421<dt><b>pickaxe</b></dt>
4422<dd>All commits that caused the string to appear or disappear from any file (changes that
4423added, removed or "modified" the string) will be listed. This search can take a while and
4424takes a lot of strain on the server, so please use it wisely.</dd>
4425EOT
4426        }
4427        print "</dl>\n";
4428        git_footer_html();
4429}
4430
4431sub git_shortlog {
4432        my $head = git_get_head_hash($project);
4433        if (!defined $hash) {
4434                $hash = $head;
4435        }
4436        if (!defined $page) {
4437                $page = 0;
4438        }
4439        my $refs = git_get_references();
4440
4441        my @commitlist = parse_commits($hash, 101, (100 * $page));
4442
4443        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, (100 * ($page+1)));
4444        my $next_link = '';
4445        if ($#commitlist >= 100) {
4446                $next_link =
4447                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
4448                                 -accesskey => "n", -title => "Alt-n"}, "next");
4449        }
4450
4451        git_header_html();
4452        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
4453        git_print_header_div('summary', $project);
4454
4455        git_shortlog_body(\@commitlist, 0, 99, $refs, $next_link);
4456
4457        git_footer_html();
4458}
4459
4460## ......................................................................
4461## feeds (RSS, Atom; OPML)
4462
4463sub git_feed {
4464        my $format = shift || 'atom';
4465        my ($have_blame) = gitweb_check_feature('blame');
4466
4467        # Atom: http://www.atomenabled.org/developers/syndication/
4468        # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
4469        if ($format ne 'rss' && $format ne 'atom') {
4470                die_error(undef, "Unknown web feed format");
4471        }
4472
4473        # log/feed of current (HEAD) branch, log of given branch, history of file/directory
4474        my $head = $hash || 'HEAD';
4475        my @commitlist = parse_commits($head, 150);
4476
4477        my %latest_commit;
4478        my %latest_date;
4479        my $content_type = "application/$format+xml";
4480        if (defined $cgi->http('HTTP_ACCEPT') &&
4481                 $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
4482                # browser (feed reader) prefers text/xml
4483                $content_type = 'text/xml';
4484        }
4485        if (defined($commitlist[0])) {
4486                %latest_commit = %{$commitlist[0]};
4487                %latest_date   = parse_date($latest_commit{'author_epoch'});
4488                print $cgi->header(
4489                        -type => $content_type,
4490                        -charset => 'utf-8',
4491                        -last_modified => $latest_date{'rfc2822'});
4492        } else {
4493                print $cgi->header(
4494                        -type => $content_type,
4495                        -charset => 'utf-8');
4496        }
4497
4498        # Optimization: skip generating the body if client asks only
4499        # for Last-Modified date.
4500        return if ($cgi->request_method() eq 'HEAD');
4501
4502        # header variables
4503        my $title = "$site_name - $project/$action";
4504        my $feed_type = 'log';
4505        if (defined $hash) {
4506                $title .= " - '$hash'";
4507                $feed_type = 'branch log';
4508                if (defined $file_name) {
4509                        $title .= " :: $file_name";
4510                        $feed_type = 'history';
4511                }
4512        } elsif (defined $file_name) {
4513                $title .= " - $file_name";
4514                $feed_type = 'history';
4515        }
4516        $title .= " $feed_type";
4517        my $descr = git_get_project_description($project);
4518        if (defined $descr) {
4519                $descr = esc_html($descr);
4520        } else {
4521                $descr = "$project " .
4522                         ($format eq 'rss' ? 'RSS' : 'Atom') .
4523                         " feed";
4524        }
4525        my $owner = git_get_project_owner($project);
4526        $owner = esc_html($owner);
4527
4528        #header
4529        my $alt_url;
4530        if (defined $file_name) {
4531                $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
4532        } elsif (defined $hash) {
4533                $alt_url = href(-full=>1, action=>"log", hash=>$hash);
4534        } else {
4535                $alt_url = href(-full=>1, action=>"summary");
4536        }
4537        print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
4538        if ($format eq 'rss') {
4539                print <<XML;
4540<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
4541<channel>
4542XML
4543                print "<title>$title</title>\n" .
4544                      "<link>$alt_url</link>\n" .
4545                      "<description>$descr</description>\n" .
4546                      "<language>en</language>\n";
4547        } elsif ($format eq 'atom') {
4548                print <<XML;
4549<feed xmlns="http://www.w3.org/2005/Atom">
4550XML
4551                print "<title>$title</title>\n" .
4552                      "<subtitle>$descr</subtitle>\n" .
4553                      '<link rel="alternate" type="text/html" href="' .
4554                      $alt_url . '" />' . "\n" .
4555                      '<link rel="self" type="' . $content_type . '" href="' .
4556                      $cgi->self_url() . '" />' . "\n" .
4557                      "<id>" . href(-full=>1) . "</id>\n" .
4558                      # use project owner for feed author
4559                      "<author><name>$owner</name></author>\n";
4560                if (defined $favicon) {
4561                        print "<icon>" . esc_url($favicon) . "</icon>\n";
4562                }
4563                if (defined $logo_url) {
4564                        # not twice as wide as tall: 72 x 27 pixels
4565                        print "<logo>" . esc_url($logo) . "</logo>\n";
4566                }
4567                if (! %latest_date) {
4568                        # dummy date to keep the feed valid until commits trickle in:
4569                        print "<updated>1970-01-01T00:00:00Z</updated>\n";
4570                } else {
4571                        print "<updated>$latest_date{'iso-8601'}</updated>\n";
4572                }
4573        }
4574
4575        # contents
4576        for (my $i = 0; $i <= $#commitlist; $i++) {
4577                my %co = %{$commitlist[$i]};
4578                my $commit = $co{'id'};
4579                # we read 150, we always show 30 and the ones more recent than 48 hours
4580                if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
4581                        last;
4582                }
4583                my %cd = parse_date($co{'author_epoch'});
4584
4585                # get list of changed files
4586                open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4587                        $co{'parent'}, $co{'id'}, "--", (defined $file_name ? $file_name : ())
4588                        or next;
4589                my @difftree = map { chomp; $_ } <$fd>;
4590                close $fd
4591                        or next;
4592
4593                # print element (entry, item)
4594                my $co_url = href(-full=>1, action=>"commit", hash=>$commit);
4595                if ($format eq 'rss') {
4596                        print "<item>\n" .
4597                              "<title>" . esc_html($co{'title'}) . "</title>\n" .
4598                              "<author>" . esc_html($co{'author'}) . "</author>\n" .
4599                              "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
4600                              "<guid isPermaLink=\"true\">$co_url</guid>\n" .
4601                              "<link>$co_url</link>\n" .
4602                              "<description>" . esc_html($co{'title'}) . "</description>\n" .
4603                              "<content:encoded>" .
4604                              "<![CDATA[\n";
4605                } elsif ($format eq 'atom') {
4606                        print "<entry>\n" .
4607                              "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
4608                              "<updated>$cd{'iso-8601'}</updated>\n" .
4609                              "<author>\n" .
4610                              "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
4611                        if ($co{'author_email'}) {
4612                                print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
4613                        }
4614                        print "</author>\n" .
4615                              # use committer for contributor
4616                              "<contributor>\n" .
4617                              "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
4618                        if ($co{'committer_email'}) {
4619                                print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
4620                        }
4621                        print "</contributor>\n" .
4622                              "<published>$cd{'iso-8601'}</published>\n" .
4623                              "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
4624                              "<id>$co_url</id>\n" .
4625                              "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
4626                              "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
4627                }
4628                my $comment = $co{'comment'};
4629                print "<pre>\n";
4630                foreach my $line (@$comment) {
4631                        $line = esc_html($line);
4632                        print "$line\n";
4633                }
4634                print "</pre><ul>\n";
4635                foreach my $difftree_line (@difftree) {
4636                        my %difftree = parse_difftree_raw_line($difftree_line);
4637                        next if !$difftree{'from_id'};
4638
4639                        my $file = $difftree{'file'} || $difftree{'to_file'};
4640
4641                        print "<li>" .
4642                              "[" .
4643                              $cgi->a({-href => href(-full=>1, action=>"blobdiff",
4644                                                     hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
4645                                                     hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
4646                                                     file_name=>$file, file_parent=>$difftree{'from_file'}),
4647                                      -title => "diff"}, 'D');
4648                        if ($have_blame) {
4649                                print $cgi->a({-href => href(-full=>1, action=>"blame",
4650                                                             file_name=>$file, hash_base=>$commit),
4651                                              -title => "blame"}, 'B');
4652                        }
4653                        # if this is not a feed of a file history
4654                        if (!defined $file_name || $file_name ne $file) {
4655                                print $cgi->a({-href => href(-full=>1, action=>"history",
4656                                                             file_name=>$file, hash=>$commit),
4657                                              -title => "history"}, 'H');
4658                        }
4659                        $file = esc_path($file);
4660                        print "] ".
4661                              "$file</li>\n";
4662                }
4663                if ($format eq 'rss') {
4664                        print "</ul>]]>\n" .
4665                              "</content:encoded>\n" .
4666                              "</item>\n";
4667                } elsif ($format eq 'atom') {
4668                        print "</ul>\n</div>\n" .
4669                              "</content>\n" .
4670                              "</entry>\n";
4671                }
4672        }
4673
4674        # end of feed
4675        if ($format eq 'rss') {
4676                print "</channel>\n</rss>\n";
4677        }       elsif ($format eq 'atom') {
4678                print "</feed>\n";
4679        }
4680}
4681
4682sub git_rss {
4683        git_feed('rss');
4684}
4685
4686sub git_atom {
4687        git_feed('atom');
4688}
4689
4690sub git_opml {
4691        my @list = git_get_projects_list();
4692
4693        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4694        print <<XML;
4695<?xml version="1.0" encoding="utf-8"?>
4696<opml version="1.0">
4697<head>
4698  <title>$site_name OPML Export</title>
4699</head>
4700<body>
4701<outline text="git RSS feeds">
4702XML
4703
4704        foreach my $pr (@list) {
4705                my %proj = %$pr;
4706                my $head = git_get_head_hash($proj{'path'});
4707                if (!defined $head) {
4708                        next;
4709                }
4710                $git_dir = "$projectroot/$proj{'path'}";
4711                my %co = parse_commit($head);
4712                if (!%co) {
4713                        next;
4714                }
4715
4716                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
4717                my $rss  = "$my_url?p=$proj{'path'};a=rss";
4718                my $html = "$my_url?p=$proj{'path'};a=summary";
4719                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
4720        }
4721        print <<XML;
4722</outline>
4723</body>
4724</opml>
4725XML
4726}