Andrew's git - gitweb.git/blob - gitweb/gitweb.perl

   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  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# default order of projects list
  75# valid values are none, project, descr, owner, and age
  76our $default_projects_order = "project";
  77
  78# show repository only if this file exists
  79# (only effective if this variable evaluates to true)
  80our $export_ok = "++GITWEB_EXPORT_OK++";
  81
  82# only allow viewing of repositories also shown on the overview page
  83our $strict_export = "++GITWEB_STRICT_EXPORT++";
  84
  85# list of git base URLs used for URL to where fetch project from,
  86# i.e. full URL is "$git_base_url/$project"
  87our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  88
  89# default blob_plain mimetype and default charset for text/plain blob
  90our $default_blob_plain_mimetype = 'text/plain';
  91our $default_text_plain_charset  = undef;
  92
  93# file to use for guessing MIME types before trying /etc/mime.types
  94# (relative to the current git repository)
  95our $mimetypes_file = undef;
  96
  97# You define site-wide feature defaults here; override them with
  98# $GITWEB_CONFIG as necessary.
  99our %feature = (
 100        # feature => {
 101        #       'sub' => feature-sub (subroutine),
 102        #       'override' => allow-override (boolean),
 103        #       'default' => [ default options...] (array reference)}
 104        #
 105        # if feature is overridable (it means that allow-override has true value),
 106        # then feature-sub will be called with default options as parameters;
 107        # return value of feature-sub indicates if to enable specified feature
 108        #
 109        # if there is no 'sub' key (no feature-sub), then feature cannot be
 110        # overriden
 111        #
 112        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 113
 114        # Enable the 'blame' blob view, showing the last commit that modified
 115        # each line in the file. This can be very CPU-intensive.
 116
 117        # To enable system wide have in $GITWEB_CONFIG
 118        # $feature{'blame'}{'default'} = [1];
 119        # To have project specific config enable override in $GITWEB_CONFIG
 120        # $feature{'blame'}{'override'} = 1;
 121        # and in project config gitweb.blame = 0|1;
 122        'blame' => {
 123                'sub' => \&feature_blame,
 124                'override' => 0,
 125                'default' => [0]},
 126
 127        # Enable the 'snapshot' link, providing a compressed tarball of any
 128        # tree. This can potentially generate high traffic if you have large
 129        # project.
 130
 131        # To disable system wide have in $GITWEB_CONFIG
 132        # $feature{'snapshot'}{'default'} = [undef];
 133        # To have project specific config enable override in $GITWEB_CONFIG
 134        # $feature{'snapshot'}{'override'} = 1;
 135        # and in project config gitweb.snapshot = none|gzip|bzip2;
 136        'snapshot' => {
 137                'sub' => \&feature_snapshot,
 138                'override' => 0,
 139                #         => [content-encoding, suffix, program]
 140                'default' => ['x-gzip', 'gz', 'gzip']},
 141
 142        # Enable text search, which will list the commits which match author,
 143        # committer or commit text to a given string.  Enabled by default.
 144        # Project specific override is not supported.
 145        'search' => {
 146                'override' => 0,
 147                'default' => [1]},
 148
 149        # Enable the pickaxe search, which will list the commits that modified
 150        # a given string in a file. This can be practical and quite faster
 151        # alternative to 'blame', but still potentially CPU-intensive.
 152
 153        # To enable system wide have in $GITWEB_CONFIG
 154        # $feature{'pickaxe'}{'default'} = [1];
 155        # To have project specific config enable override in $GITWEB_CONFIG
 156        # $feature{'pickaxe'}{'override'} = 1;
 157        # and in project config gitweb.pickaxe = 0|1;
 158        'pickaxe' => {
 159                'sub' => \&feature_pickaxe,
 160                'override' => 0,
 161                'default' => [1]},
 162
 163        # Make gitweb use an alternative format of the URLs which can be
 164        # more readable and natural-looking: project name is embedded
 165        # directly in the path and the query string contains other
 166        # auxiliary information. All gitweb installations recognize
 167        # URL in either format; this configures in which formats gitweb
 168        # generates links.
 169
 170        # To enable system wide have in $GITWEB_CONFIG
 171        # $feature{'pathinfo'}{'default'} = [1];
 172        # Project specific override is not supported.
 173
 174        # Note that you will need to change the default location of CSS,
 175        # favicon, logo and possibly other files to an absolute URL. Also,
 176        # if gitweb.cgi serves as your indexfile, you will need to force
 177        # $my_uri to contain the script name in your $GITWEB_CONFIG.
 178        'pathinfo' => {
 179                'override' => 0,
 180                'default' => [0]},
 181
 182        # Make gitweb consider projects in project root subdirectories
 183        # to be forks of existing projects. Given project $projname.git,
 184        # projects matching $projname/*.git will not be shown in the main
 185        # projects list, instead a '+' mark will be added to $projname
 186        # there and a 'forks' view will be enabled for the project, listing
 187        # all the forks. If project list is taken from a file, forks have
 188        # to be listed after the main project.
 189
 190        # To enable system wide have in $GITWEB_CONFIG
 191        # $feature{'forks'}{'default'} = [1];
 192        # Project specific override is not supported.
 193        'forks' => {
 194                'override' => 0,
 195                'default' => [0]},
 196);
 197
 198sub gitweb_check_feature {
 199        my ($name) = @_;
 200        return unless exists $feature{$name};
 201        my ($sub, $override, @defaults) = (
 202                $feature{$name}{'sub'},
 203                $feature{$name}{'override'},
 204                @{$feature{$name}{'default'}});
 205        if (!$override) { return @defaults; }
 206        if (!defined $sub) {
 207                warn "feature $name is not overrideable";
 208                return @defaults;
 209        }
 210        return $sub->(@defaults);
 211}
 212
 213sub feature_blame {
 214        my ($val) = git_get_project_config('blame', '--bool');
 215
 216        if ($val eq 'true') {
 217                return 1;
 218        } elsif ($val eq 'false') {
 219                return 0;
 220        }
 221
 222        return $_[0];
 223}
 224
 225sub feature_snapshot {
 226        my ($ctype, $suffix, $command) = @_;
 227
 228        my ($val) = git_get_project_config('snapshot');
 229
 230        if ($val eq 'gzip') {
 231                return ('x-gzip', 'gz', 'gzip');
 232        } elsif ($val eq 'bzip2') {
 233                return ('x-bzip2', 'bz2', 'bzip2');
 234        } elsif ($val eq 'none') {
 235                return ();
 236        }
 237
 238        return ($ctype, $suffix, $command);
 239}
 240
 241sub gitweb_have_snapshot {
 242        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 243        my $have_snapshot = (defined $ctype && defined $suffix);
 244
 245        return $have_snapshot;
 246}
 247
 248sub feature_pickaxe {
 249        my ($val) = git_get_project_config('pickaxe', '--bool');
 250
 251        if ($val eq 'true') {
 252                return (1);
 253        } elsif ($val eq 'false') {
 254                return (0);
 255        }
 256
 257        return ($_[0]);
 258}
 259
 260# checking HEAD file with -e is fragile if the repository was
 261# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 262# and then pruned.
 263sub check_head_link {
 264        my ($dir) = @_;
 265        my $headfile = "$dir/HEAD";
 266        return ((-e $headfile) ||
 267                (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 268}
 269
 270sub check_export_ok {
 271        my ($dir) = @_;
 272        return (check_head_link($dir) &&
 273                (!$export_ok || -e "$dir/$export_ok"));
 274}
 275
 276# rename detection options for git-diff and git-diff-tree
 277# - default is '-M', with the cost proportional to
 278#   (number of removed files) * (number of new files).
 279# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 280#   (number of changed files + number of removed files) * (number of new files)
 281# - even more costly is '-C', '--find-copies-harder' with cost
 282#   (number of files in the original tree) * (number of new files)
 283# - one might want to include '-B' option, e.g. '-B', '-M'
 284our @diff_opts = ('-M'); # taken from git_commit
 285
 286our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 287do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 288
 289# version of the core git binary
 290our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 291
 292$projects_list ||= $projectroot;
 293
 294# ======================================================================
 295# input validation and dispatch
 296our $action = $cgi->param('a');
 297if (defined $action) {
 298        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 299                die_error(undef, "Invalid action parameter");
 300        }
 301}
 302
 303# parameters which are pathnames
 304our $project = $cgi->param('p');
 305if (defined $project) {
 306        if (!validate_pathname($project) ||
 307            !(-d "$projectroot/$project") ||
 308            !check_head_link("$projectroot/$project") ||
 309            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 310            ($strict_export && !project_in_list($project))) {
 311                undef $project;
 312                die_error(undef, "No such project");
 313        }
 314}
 315
 316our $file_name = $cgi->param('f');
 317if (defined $file_name) {
 318        if (!validate_pathname($file_name)) {
 319                die_error(undef, "Invalid file parameter");
 320        }
 321}
 322
 323our $file_parent = $cgi->param('fp');
 324if (defined $file_parent) {
 325        if (!validate_pathname($file_parent)) {
 326                die_error(undef, "Invalid file parent parameter");
 327        }
 328}
 329
 330# parameters which are refnames
 331our $hash = $cgi->param('h');
 332if (defined $hash) {
 333        if (!validate_refname($hash)) {
 334                die_error(undef, "Invalid hash parameter");
 335        }
 336}
 337
 338our $hash_parent = $cgi->param('hp');
 339if (defined $hash_parent) {
 340        if (!validate_refname($hash_parent)) {
 341                die_error(undef, "Invalid hash parent parameter");
 342        }
 343}
 344
 345our $hash_base = $cgi->param('hb');
 346if (defined $hash_base) {
 347        if (!validate_refname($hash_base)) {
 348                die_error(undef, "Invalid hash base parameter");
 349        }
 350}
 351
 352our $hash_parent_base = $cgi->param('hpb');
 353if (defined $hash_parent_base) {
 354        if (!validate_refname($hash_parent_base)) {
 355                die_error(undef, "Invalid hash parent base parameter");
 356        }
 357}
 358
 359# other parameters
 360our $page = $cgi->param('pg');
 361if (defined $page) {
 362        if ($page =~ m/[^0-9]/) {
 363                die_error(undef, "Invalid page parameter");
 364        }
 365}
 366
 367our $searchtext = $cgi->param('s');
 368our $search_regexp;
 369if (defined $searchtext) {
 370        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 371                die_error(undef, "Invalid search parameter");
 372        }
 373        if (length($searchtext) < 2) {
 374                die_error(undef, "At least two characters are required for search parameter");
 375        }
 376        $search_regexp = quotemeta $searchtext;
 377}
 378
 379our $searchtype = $cgi->param('st');
 380if (defined $searchtype) {
 381        if ($searchtype =~ m/[^a-z]/) {
 382                die_error(undef, "Invalid searchtype parameter");
 383        }
 384}
 385
 386# now read PATH_INFO and use it as alternative to parameters
 387sub evaluate_path_info {
 388        return if defined $project;
 389        my $path_info = $ENV{"PATH_INFO"};
 390        return if !$path_info;
 391        $path_info =~ s,^/+,,;
 392        return if !$path_info;
 393        # find which part of PATH_INFO is project
 394        $project = $path_info;
 395        $project =~ s,/+$,,;
 396        while ($project && !check_head_link("$projectroot/$project")) {
 397                $project =~ s,/*[^/]*$,,;
 398        }
 399        # validate project
 400        $project = validate_pathname($project);
 401        if (!$project ||
 402            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 403            ($strict_export && !project_in_list($project))) {
 404                undef $project;
 405                return;
 406        }
 407        # do not change any parameters if an action is given using the query string
 408        return if $action;
 409        $path_info =~ s,^$project/*,,;
 410        my ($refname, $pathname) = split(/:/, $path_info, 2);
 411        if (defined $pathname) {
 412                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 413                # we could use git_get_type(branch:pathname), but it needs $git_dir
 414                $pathname =~ s,^/+,,;
 415                if (!$pathname || substr($pathname, -1) eq "/") {
 416                        $action  ||= "tree";
 417                        $pathname =~ s,/$,,;
 418                } else {
 419                        $action  ||= "blob_plain";
 420                }
 421                $hash_base ||= validate_refname($refname);
 422                $file_name ||= validate_pathname($pathname);
 423        } elsif (defined $refname) {
 424                # we got "project.git/branch"
 425                $action ||= "shortlog";
 426                $hash   ||= validate_refname($refname);
 427        }
 428}
 429evaluate_path_info();
 430
 431# path to the current git repository
 432our $git_dir;
 433$git_dir = "$projectroot/$project" if $project;
 434
 435# dispatch
 436my %actions = (
 437        "blame" => \&git_blame2,
 438        "blobdiff" => \&git_blobdiff,
 439        "blobdiff_plain" => \&git_blobdiff_plain,
 440        "blob" => \&git_blob,
 441        "blob_plain" => \&git_blob_plain,
 442        "commitdiff" => \&git_commitdiff,
 443        "commitdiff_plain" => \&git_commitdiff_plain,
 444        "commit" => \&git_commit,
 445        "forks" => \&git_forks,
 446        "heads" => \&git_heads,
 447        "history" => \&git_history,
 448        "log" => \&git_log,
 449        "rss" => \&git_rss,
 450        "atom" => \&git_atom,
 451        "search" => \&git_search,
 452        "search_help" => \&git_search_help,
 453        "shortlog" => \&git_shortlog,
 454        "summary" => \&git_summary,
 455        "tag" => \&git_tag,
 456        "tags" => \&git_tags,
 457        "tree" => \&git_tree,
 458        "snapshot" => \&git_snapshot,
 459        "object" => \&git_object,
 460        # those below don't need $project
 461        "opml" => \&git_opml,
 462        "project_list" => \&git_project_list,
 463        "project_index" => \&git_project_index,
 464);
 465
 466if (!defined $action) {
 467        if (defined $hash) {
 468                $action = git_get_type($hash);
 469        } elsif (defined $hash_base && defined $file_name) {
 470                $action = git_get_type("$hash_base:$file_name");
 471        } elsif (defined $project) {
 472                $action = 'summary';
 473        } else {
 474                $action = 'project_list';
 475        }
 476}
 477if (!defined($actions{$action})) {
 478        die_error(undef, "Unknown action");
 479}
 480if ($action !~ m/^(opml|project_list|project_index)$/ &&
 481    !$project) {
 482        die_error(undef, "Project needed");
 483}
 484$actions{$action}->();
 485exit;
 486
 487## ======================================================================
 488## action links
 489
 490sub href(%) {
 491        my %params = @_;
 492        # default is to use -absolute url() i.e. $my_uri
 493        my $href = $params{-full} ? $my_url : $my_uri;
 494
 495        # XXX: Warning: If you touch this, check the search form for updating,
 496        # too.
 497
 498        my @mapping = (
 499                project => "p",
 500                action => "a",
 501                file_name => "f",
 502                file_parent => "fp",
 503                hash => "h",
 504                hash_parent => "hp",
 505                hash_base => "hb",
 506                hash_parent_base => "hpb",
 507                page => "pg",
 508                order => "o",
 509                searchtext => "s",
 510                searchtype => "st",
 511        );
 512        my %mapping = @mapping;
 513
 514        $params{'project'} = $project unless exists $params{'project'};
 515
 516        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 517        if ($use_pathinfo) {
 518                # use PATH_INFO for project name
 519                $href .= "/$params{'project'}" if defined $params{'project'};
 520                delete $params{'project'};
 521
 522                # Summary just uses the project path URL
 523                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 524                        delete $params{'action'};
 525                }
 526        }
 527
 528        # now encode the parameters explicitly
 529        my @result = ();
 530        for (my $i = 0; $i < @mapping; $i += 2) {
 531                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 532                if (defined $params{$name}) {
 533                        push @result, $symbol . "=" . esc_param($params{$name});
 534                }
 535        }
 536        $href .= "?" . join(';', @result) if scalar @result;
 537
 538        return $href;
 539}
 540
 541
 542## ======================================================================
 543## validation, quoting/unquoting and escaping
 544
 545sub validate_pathname {
 546        my $input = shift || return undef;
 547
 548        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 549        # at the beginning, at the end, and between slashes.
 550        # also this catches doubled slashes
 551        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 552                return undef;
 553        }
 554        # no null characters
 555        if ($input =~ m!\0!) {
 556                return undef;
 557        }
 558        return $input;
 559}
 560
 561sub validate_refname {
 562        my $input = shift || return undef;
 563
 564        # textual hashes are O.K.
 565        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 566                return $input;
 567        }
 568        # it must be correct pathname
 569        $input = validate_pathname($input)
 570                or return undef;
 571        # restrictions on ref name according to git-check-ref-format
 572        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 573                return undef;
 574        }
 575        return $input;
 576}
 577
 578# quote unsafe chars, but keep the slash, even when it's not
 579# correct, but quoted slashes look too horrible in bookmarks
 580sub esc_param {
 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# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 589sub esc_url {
 590        my $str = shift;
 591        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 592        $str =~ s/\+/%2B/g;
 593        $str =~ s/ /\+/g;
 594        return $str;
 595}
 596
 597# replace invalid utf8 character with SUBSTITUTION sequence
 598sub esc_html ($;%) {
 599        my $str = shift;
 600        my %opts = @_;
 601
 602        $str = decode_utf8($str);
 603        $str = $cgi->escapeHTML($str);
 604        if ($opts{'-nbsp'}) {
 605                $str =~ s/ /&nbsp;/g;
 606        }
 607        $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
 608        return $str;
 609}
 610
 611# quote control characters and escape filename to HTML
 612sub esc_path {
 613        my $str = shift;
 614        my %opts = @_;
 615
 616        $str = decode_utf8($str);
 617        $str = $cgi->escapeHTML($str);
 618        if ($opts{'-nbsp'}) {
 619                $str =~ s/ /&nbsp;/g;
 620        }
 621        $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
 622        return $str;
 623}
 624
 625# Make control characters "printable", using character escape codes (CEC)
 626sub quot_cec {
 627        my $cntrl = shift;
 628        my %es = ( # character escape codes, aka escape sequences
 629                   "\t" => '\t',   # tab            (HT)
 630                   "\n" => '\n',   # line feed      (LF)
 631                   "\r" => '\r',   # carrige return (CR)
 632                   "\f" => '\f',   # form feed      (FF)
 633                   "\b" => '\b',   # backspace      (BS)
 634                   "\a" => '\a',   # alarm (bell)   (BEL)
 635                   "\e" => '\e',   # escape         (ESC)
 636                   "\013" => '\v', # vertical tab   (VT)
 637                   "\000" => '\0', # nul character  (NUL)
 638                   );
 639        my $chr = ( (exists $es{$cntrl})
 640                    ? $es{$cntrl}
 641                    : sprintf('\%03o', ord($cntrl)) );
 642        return "<span class=\"cntrl\">$chr</span>";
 643}
 644
 645# Alternatively use unicode control pictures codepoints,
 646# Unicode "printable representation" (PR)
 647sub quot_upr {
 648        my $cntrl = shift;
 649        my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
 650        return "<span class=\"cntrl\">$chr</span>";
 651}
 652
 653# git may return quoted and escaped filenames
 654sub unquote {
 655        my $str = shift;
 656
 657        sub unq {
 658                my $seq = shift;
 659                my %es = ( # character escape codes, aka escape sequences
 660                        't' => "\t",   # tab            (HT, TAB)
 661                        'n' => "\n",   # newline        (NL)
 662                        'r' => "\r",   # return         (CR)
 663                        'f' => "\f",   # form feed      (FF)
 664                        'b' => "\b",   # backspace      (BS)
 665                        'a' => "\a",   # alarm (bell)   (BEL)
 666                        'e' => "\e",   # escape         (ESC)
 667                        'v' => "\013", # vertical tab   (VT)
 668                );
 669
 670                if ($seq =~ m/^[0-7]{1,3}$/) {
 671                        # octal char sequence
 672                        return chr(oct($seq));
 673                } elsif (exists $es{$seq}) {
 674                        # C escape sequence, aka character escape code
 675                        return $es{$seq}
 676                }
 677                # quoted ordinary character
 678                return $seq;
 679        }
 680
 681        if ($str =~ m/^"(.*)"$/) {
 682                # needs unquoting
 683                $str = $1;
 684                $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
 685        }
 686        return $str;
 687}
 688
 689# escape tabs (convert tabs to spaces)
 690sub untabify {
 691        my $line = shift;
 692
 693        while ((my $pos = index($line, "\t")) != -1) {
 694                if (my $count = (8 - ($pos % 8))) {
 695                        my $spaces = ' ' x $count;
 696                        $line =~ s/\t/$spaces/;
 697                }
 698        }
 699
 700        return $line;
 701}
 702
 703sub project_in_list {
 704        my $project = shift;
 705        my @list = git_get_projects_list();
 706        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 707}
 708
 709## ----------------------------------------------------------------------
 710## HTML aware string manipulation
 711
 712sub chop_str {
 713        my $str = shift;
 714        my $len = shift;
 715        my $add_len = shift || 10;
 716
 717        # allow only $len chars, but don't cut a word if it would fit in $add_len
 718        # if it doesn't fit, cut it if it's still longer than the dots we would add
 719        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 720        my $body = $1;
 721        my $tail = $2;
 722        if (length($tail) > 4) {
 723                $tail = " ...";
 724                $body =~ s/&[^;]*$//; # remove chopped character entities
 725        }
 726        return "$body$tail";
 727}
 728
 729## ----------------------------------------------------------------------
 730## functions returning short strings
 731
 732# CSS class for given age value (in seconds)
 733sub age_class {
 734        my $age = shift;
 735
 736        if (!defined $age) {
 737                return "noage";
 738        } elsif ($age < 60*60*2) {
 739                return "age0";
 740        } elsif ($age < 60*60*24*2) {
 741                return "age1";
 742        } else {
 743                return "age2";
 744        }
 745}
 746
 747# convert age in seconds to "nn units ago" string
 748sub age_string {
 749        my $age = shift;
 750        my $age_str;
 751
 752        if ($age > 60*60*24*365*2) {
 753                $age_str = (int $age/60/60/24/365);
 754                $age_str .= " years ago";
 755        } elsif ($age > 60*60*24*(365/12)*2) {
 756                $age_str = int $age/60/60/24/(365/12);
 757                $age_str .= " months ago";
 758        } elsif ($age > 60*60*24*7*2) {
 759                $age_str = int $age/60/60/24/7;
 760                $age_str .= " weeks ago";
 761        } elsif ($age > 60*60*24*2) {
 762                $age_str = int $age/60/60/24;
 763                $age_str .= " days ago";
 764        } elsif ($age > 60*60*2) {
 765                $age_str = int $age/60/60;
 766                $age_str .= " hours ago";
 767        } elsif ($age > 60*2) {
 768                $age_str = int $age/60;
 769                $age_str .= " min ago";
 770        } elsif ($age > 2) {
 771                $age_str = int $age;
 772                $age_str .= " sec ago";
 773        } else {
 774                $age_str .= " right now";
 775        }
 776        return $age_str;
 777}
 778
 779# convert file mode in octal to symbolic file mode string
 780sub mode_str {
 781        my $mode = oct shift;
 782
 783        if (S_ISDIR($mode & S_IFMT)) {
 784                return 'drwxr-xr-x';
 785        } elsif (S_ISLNK($mode)) {
 786                return 'lrwxrwxrwx';
 787        } elsif (S_ISREG($mode)) {
 788                # git cares only about the executable bit
 789                if ($mode & S_IXUSR) {
 790                        return '-rwxr-xr-x';
 791                } else {
 792                        return '-rw-r--r--';
 793                };
 794        } else {
 795                return '----------';
 796        }
 797}
 798
 799# convert file mode in octal to file type string
 800sub file_type {
 801        my $mode = shift;
 802
 803        if ($mode !~ m/^[0-7]+$/) {
 804                return $mode;
 805        } else {
 806                $mode = oct $mode;
 807        }
 808
 809        if (S_ISDIR($mode & S_IFMT)) {
 810                return "directory";
 811        } elsif (S_ISLNK($mode)) {
 812                return "symlink";
 813        } elsif (S_ISREG($mode)) {
 814                return "file";
 815        } else {
 816                return "unknown";
 817        }
 818}
 819
 820# convert file mode in octal to file type description string
 821sub file_type_long {
 822        my $mode = shift;
 823
 824        if ($mode !~ m/^[0-7]+$/) {
 825                return $mode;
 826        } else {
 827                $mode = oct $mode;
 828        }
 829
 830        if (S_ISDIR($mode & S_IFMT)) {
 831                return "directory";
 832        } elsif (S_ISLNK($mode)) {
 833                return "symlink";
 834        } elsif (S_ISREG($mode)) {
 835                if ($mode & S_IXUSR) {
 836                        return "executable";
 837                } else {
 838                        return "file";
 839                };
 840        } else {
 841                return "unknown";
 842        }
 843}
 844
 845
 846## ----------------------------------------------------------------------
 847## functions returning short HTML fragments, or transforming HTML fragments
 848## which don't belong to other sections
 849
 850# format line of commit message.
 851sub format_log_line_html {
 852        my $line = shift;
 853
 854        $line = esc_html($line, -nbsp=>1);
 855        if ($line =~ m/([0-9a-fA-F]{8,40})/) {
 856                my $hash_text = $1;
 857                my $link =
 858                        $cgi->a({-href => href(action=>"object", hash=>$hash_text),
 859                                -class => "text"}, $hash_text);
 860                $line =~ s/$hash_text/$link/;
 861        }
 862        return $line;
 863}
 864
 865# format marker of refs pointing to given object
 866sub format_ref_marker {
 867        my ($refs, $id) = @_;
 868        my $markers = '';
 869
 870        if (defined $refs->{$id}) {
 871                foreach my $ref (@{$refs->{$id}}) {
 872                        my ($type, $name) = qw();
 873                        # e.g. tags/v2.6.11 or heads/next
 874                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 875                                $type = $1;
 876                                $name = $2;
 877                        } else {
 878                                $type = "ref";
 879                                $name = $ref;
 880                        }
 881
 882                        $markers .= " <span class=\"$type\" title=\"$ref\">" .
 883                                    esc_html($name) . "</span>";
 884                }
 885        }
 886
 887        if ($markers) {
 888                return ' <span class="refs">'. $markers . '</span>';
 889        } else {
 890                return "";
 891        }
 892}
 893
 894# format, perhaps shortened and with markers, title line
 895sub format_subject_html {
 896        my ($long, $short, $href, $extra) = @_;
 897        $extra = '' unless defined($extra);
 898
 899        if (length($short) < length($long)) {
 900                return $cgi->a({-href => $href, -class => "list subject",
 901                                -title => decode_utf8($long)},
 902                       esc_html($short) . $extra);
 903        } else {
 904                return $cgi->a({-href => $href, -class => "list subject"},
 905                       esc_html($long)  . $extra);
 906        }
 907}
 908
 909# format patch (diff) line (rather not to be used for diff headers)
 910sub format_diff_line {
 911        my $line = shift;
 912        my ($from, $to) = @_;
 913        my $diff_class = "";
 914
 915        chomp $line;
 916
 917        if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
 918                # combined diff
 919                my $prefix = substr($line, 0, scalar @{$from->{'href'}});
 920                if ($line =~ m/^\@{3}/) {
 921                        $diff_class = " chunk_header";
 922                } elsif ($line =~ m/^\\/) {
 923                        $diff_class = " incomplete";
 924                } elsif ($prefix =~ tr/+/+/) {
 925                        $diff_class = " add";
 926                } elsif ($prefix =~ tr/-/-/) {
 927                        $diff_class = " rem";
 928                }
 929        } else {
 930                # assume ordinary diff
 931                my $char = substr($line, 0, 1);
 932                if ($char eq '+') {
 933                        $diff_class = " add";
 934                } elsif ($char eq '-') {
 935                        $diff_class = " rem";
 936                } elsif ($char eq '@') {
 937                        $diff_class = " chunk_header";
 938                } elsif ($char eq "\\") {
 939                        $diff_class = " incomplete";
 940                }
 941        }
 942        $line = untabify($line);
 943        if ($from && $to && $line =~ m/^\@{2} /) {
 944                my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
 945                        $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
 946
 947                $from_lines = 0 unless defined $from_lines;
 948                $to_lines   = 0 unless defined $to_lines;
 949
 950                if ($from->{'href'}) {
 951                        $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
 952                                             -class=>"list"}, $from_text);
 953                }
 954                if ($to->{'href'}) {
 955                        $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
 956                                             -class=>"list"}, $to_text);
 957                }
 958                $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
 959                        "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
 960                return "<div class=\"diff$diff_class\">$line</div>\n";
 961        } elsif ($from && $to && $line =~ m/^\@{3}/) {
 962                my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
 963                my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
 964
 965                @from_text = split(' ', $ranges);
 966                for (my $i = 0; $i < @from_text; ++$i) {
 967                        ($from_start[$i], $from_nlines[$i]) =
 968                                (split(',', substr($from_text[$i], 1)), 0);
 969                }
 970
 971                $to_text   = pop @from_text;
 972                $to_start  = pop @from_start;
 973                $to_nlines = pop @from_nlines;
 974
 975                $line = "<span class=\"chunk_info\">$prefix ";
 976                for (my $i = 0; $i < @from_text; ++$i) {
 977                        if ($from->{'href'}[$i]) {
 978                                $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
 979                                                  -class=>"list"}, $from_text[$i]);
 980                        } else {
 981                                $line .= $from_text[$i];
 982                        }
 983                        $line .= " ";
 984                }
 985                if ($to->{'href'}) {
 986                        $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
 987                                          -class=>"list"}, $to_text);
 988                } else {
 989                        $line .= $to_text;
 990                }
 991                $line .= " $prefix</span>" .
 992                         "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
 993                return "<div class=\"diff$diff_class\">$line</div>\n";
 994        }
 995        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
 996}
 997
 998## ----------------------------------------------------------------------
 999## git utility subroutines, invoking git commands
1000
1001# returns path to the core git executable and the --git-dir parameter as list
1002sub git_cmd {
1003        return $GIT, '--git-dir='.$git_dir;
1004}
1005
1006# returns path to the core git executable and the --git-dir parameter as string
1007sub git_cmd_str {
1008        return join(' ', git_cmd());
1009}
1010
1011# get HEAD ref of given project as hash
1012sub git_get_head_hash {
1013        my $project = shift;
1014        my $o_git_dir = $git_dir;
1015        my $retval = undef;
1016        $git_dir = "$projectroot/$project";
1017        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
1018                my $head = <$fd>;
1019                close $fd;
1020                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
1021                        $retval = $1;
1022                }
1023        }
1024        if (defined $o_git_dir) {
1025                $git_dir = $o_git_dir;
1026        }
1027        return $retval;
1028}
1029
1030# get type of given object
1031sub git_get_type {
1032        my $hash = shift;
1033
1034        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
1035        my $type = <$fd>;
1036        close $fd or return;
1037        chomp $type;
1038        return $type;
1039}
1040
1041sub git_get_project_config {
1042        my ($key, $type) = @_;
1043
1044        return unless ($key);
1045        $key =~ s/^gitweb\.//;
1046        return if ($key =~ m/\W/);
1047
1048        my @x = (git_cmd(), 'config');
1049        if (defined $type) { push @x, $type; }
1050        push @x, "--get";
1051        push @x, "gitweb.$key";
1052        my $val = qx(@x);
1053        chomp $val;
1054        return ($val);
1055}
1056
1057# get hash of given path at given ref
1058sub git_get_hash_by_path {
1059        my $base = shift;
1060        my $path = shift || return undef;
1061        my $type = shift;
1062
1063        $path =~ s,/+$,,;
1064
1065        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
1066                or die_error(undef, "Open git-ls-tree failed");
1067        my $line = <$fd>;
1068        close $fd or return undef;
1069
1070        if (!defined $line) {
1071                # there is no tree or hash given by $path at $base
1072                return undef;
1073        }
1074
1075        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1076        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
1077        if (defined $type && $type ne $2) {
1078                # type doesn't match
1079                return undef;
1080        }
1081        return $3;
1082}
1083
1084# get path of entry with given hash at given tree-ish (ref)
1085# used to get 'from' filename for combined diff (merge commit) for renames
1086sub git_get_path_by_hash {
1087        my $base = shift || return;
1088        my $hash = shift || return;
1089
1090        local $/ = "\0";
1091
1092        open my $fd, "-|", git_cmd(), "ls-tree", '-r', '-t', '-z', $base
1093                or return undef;
1094        while (my $line = <$fd>) {
1095                chomp $line;
1096
1097                #'040000 tree 595596a6a9117ddba9fe379b6b012b558bac8423  gitweb'
1098                #'100644 blob e02e90f0429be0d2a69b76571101f20b8f75530f  gitweb/README'
1099                if ($line =~ m/(?:[0-9]+) (?:.+) $hash\t(.+)$/) {
1100                        close $fd;
1101                        return $1;
1102                }
1103        }
1104        close $fd;
1105        return undef;
1106}
1107
1108## ......................................................................
1109## git utility functions, directly accessing git repository
1110
1111sub git_get_project_description {
1112        my $path = shift;
1113
1114        open my $fd, "$projectroot/$path/description" or return undef;
1115        my $descr = <$fd>;
1116        close $fd;
1117        chomp $descr;
1118        return $descr;
1119}
1120
1121sub git_get_project_url_list {
1122        my $path = shift;
1123
1124        open my $fd, "$projectroot/$path/cloneurl" or return;
1125        my @git_project_url_list = map { chomp; $_ } <$fd>;
1126        close $fd;
1127
1128        return wantarray ? @git_project_url_list : \@git_project_url_list;
1129}
1130
1131sub git_get_projects_list {
1132        my ($filter) = @_;
1133        my @list;
1134
1135        $filter ||= '';
1136        $filter =~ s/\.git$//;
1137
1138        my ($check_forks) = gitweb_check_feature('forks');
1139
1140        if (-d $projects_list) {
1141                # search in directory
1142                my $dir = $projects_list . ($filter ? "/$filter" : '');
1143                # remove the trailing "/"
1144                $dir =~ s!/+$!!;
1145                my $pfxlen = length("$dir");
1146
1147                File::Find::find({
1148                        follow_fast => 1, # follow symbolic links
1149                        dangling_symlinks => 0, # ignore dangling symlinks, silently
1150                        wanted => sub {
1151                                # skip project-list toplevel, if we get it.
1152                                return if (m!^[/.]$!);
1153                                # only directories can be git repositories
1154                                return unless (-d $_);
1155
1156                                my $subdir = substr($File::Find::name, $pfxlen + 1);
1157                                # we check related file in $projectroot
1158                                if ($check_forks and $subdir =~ m#/.#) {
1159                                        $File::Find::prune = 1;
1160                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1161                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1162                                        $File::Find::prune = 1;
1163                                }
1164                        },
1165                }, "$dir");
1166
1167        } elsif (-f $projects_list) {
1168                # read from file(url-encoded):
1169                # 'git%2Fgit.git Linus+Torvalds'
1170                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1171                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1172                my %paths;
1173                open my ($fd), $projects_list or return;
1174        PROJECT:
1175                while (my $line = <$fd>) {
1176                        chomp $line;
1177                        my ($path, $owner) = split ' ', $line;
1178                        $path = unescape($path);
1179                        $owner = unescape($owner);
1180                        if (!defined $path) {
1181                                next;
1182                        }
1183                        if ($filter ne '') {
1184                                # looking for forks;
1185                                my $pfx = substr($path, 0, length($filter));
1186                                if ($pfx ne $filter) {
1187                                        next PROJECT;
1188                                }
1189                                my $sfx = substr($path, length($filter));
1190                                if ($sfx !~ /^\/.*\.git$/) {
1191                                        next PROJECT;
1192                                }
1193                        } elsif ($check_forks) {
1194                        PATH:
1195                                foreach my $filter (keys %paths) {
1196                                        # looking for forks;
1197                                        my $pfx = substr($path, 0, length($filter));
1198                                        if ($pfx ne $filter) {
1199                                                next PATH;
1200                                        }
1201                                        my $sfx = substr($path, length($filter));
1202                                        if ($sfx !~ /^\/.*\.git$/) {
1203                                                next PATH;
1204                                        }
1205                                        # is a fork, don't include it in
1206                                        # the list
1207                                        next PROJECT;
1208                                }
1209                        }
1210                        if (check_export_ok("$projectroot/$path")) {
1211                                my $pr = {
1212                                        path => $path,
1213                                        owner => decode_utf8($owner),
1214                                };
1215                                push @list, $pr;
1216                                (my $forks_path = $path) =~ s/\.git$//;
1217                                $paths{$forks_path}++;
1218                        }
1219                }
1220                close $fd;
1221        }
1222        return @list;
1223}
1224
1225sub git_get_project_owner {
1226        my $project = shift;
1227        my $owner;
1228
1229        return undef unless $project;
1230
1231        # read from file (url-encoded):
1232        # 'git%2Fgit.git Linus+Torvalds'
1233        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1234        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1235        if (-f $projects_list) {
1236                open (my $fd , $projects_list);
1237                while (my $line = <$fd>) {
1238                        chomp $line;
1239                        my ($pr, $ow) = split ' ', $line;
1240                        $pr = unescape($pr);
1241                        $ow = unescape($ow);
1242                        if ($pr eq $project) {
1243                                $owner = decode_utf8($ow);
1244                                last;
1245                        }
1246                }
1247                close $fd;
1248        }
1249        if (!defined $owner) {
1250                $owner = get_file_owner("$projectroot/$project");
1251        }
1252
1253        return $owner;
1254}
1255
1256sub git_get_last_activity {
1257        my ($path) = @_;
1258        my $fd;
1259
1260        $git_dir = "$projectroot/$path";
1261        open($fd, "-|", git_cmd(), 'for-each-ref',
1262             '--format=%(committer)',
1263             '--sort=-committerdate',
1264             '--count=1',
1265             'refs/heads') or return;
1266        my $most_recent = <$fd>;
1267        close $fd or return;
1268        if (defined $most_recent &&
1269            $most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1270                my $timestamp = $1;
1271                my $age = time - $timestamp;
1272                return ($age, age_string($age));
1273        }
1274}
1275
1276sub git_get_references {
1277        my $type = shift || "";
1278        my %refs;
1279        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
1280        # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
1281        open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
1282                ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
1283                or return;
1284
1285        while (my $line = <$fd>) {
1286                chomp $line;
1287                if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
1288                        if (defined $refs{$1}) {
1289                                push @{$refs{$1}}, $2;
1290                        } else {
1291                                $refs{$1} = [ $2 ];
1292                        }
1293                }
1294        }
1295        close $fd or return;
1296        return \%refs;
1297}
1298
1299sub git_get_rev_name_tags {
1300        my $hash = shift || return undef;
1301
1302        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1303                or return;
1304        my $name_rev = <$fd>;
1305        close $fd;
1306
1307        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1308                return $1;
1309        } else {
1310                # catches also '$hash undefined' output
1311                return undef;
1312        }
1313}
1314
1315## ----------------------------------------------------------------------
1316## parse to hash functions
1317
1318sub parse_date {
1319        my $epoch = shift;
1320        my $tz = shift || "-0000";
1321
1322        my %date;
1323        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1324        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1325        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1326        $date{'hour'} = $hour;
1327        $date{'minute'} = $min;
1328        $date{'mday'} = $mday;
1329        $date{'day'} = $days[$wday];
1330        $date{'month'} = $months[$mon];
1331        $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1332                             $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1333        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1334                             $mday, $months[$mon], $hour ,$min;
1335        $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
1336                             1900+$year, $mon, $mday, $hour ,$min, $sec;
1337
1338        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1339        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1340        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1341        $date{'hour_local'} = $hour;
1342        $date{'minute_local'} = $min;
1343        $date{'tz_local'} = $tz;
1344        $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
1345                                  1900+$year, $mon+1, $mday,
1346                                  $hour, $min, $sec, $tz);
1347        return %date;
1348}
1349
1350sub parse_tag {
1351        my $tag_id = shift;
1352        my %tag;
1353        my @comment;
1354
1355        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1356        $tag{'id'} = $tag_id;
1357        while (my $line = <$fd>) {
1358                chomp $line;
1359                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1360                        $tag{'object'} = $1;
1361                } elsif ($line =~ m/^type (.+)$/) {
1362                        $tag{'type'} = $1;
1363                } elsif ($line =~ m/^tag (.+)$/) {
1364                        $tag{'name'} = $1;
1365                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1366                        $tag{'author'} = $1;
1367                        $tag{'epoch'} = $2;
1368                        $tag{'tz'} = $3;
1369                } elsif ($line =~ m/--BEGIN/) {
1370                        push @comment, $line;
1371                        last;
1372                } elsif ($line eq "") {
1373                        last;
1374                }
1375        }
1376        push @comment, <$fd>;
1377        $tag{'comment'} = \@comment;
1378        close $fd or return;
1379        if (!defined $tag{'name'}) {
1380                return
1381        };
1382        return %tag
1383}
1384
1385sub parse_commit_text {
1386        my ($commit_text, $withparents) = @_;
1387        my @commit_lines = split '\n', $commit_text;
1388        my %co;
1389
1390        pop @commit_lines; # Remove '\0'
1391
1392        if (! @commit_lines) {
1393                return;
1394        }
1395
1396        my $header = shift @commit_lines;
1397        if ($header !~ m/^[0-9a-fA-F]{40}/) {
1398                return;
1399        }
1400        ($co{'id'}, my @parents) = split ' ', $header;
1401        while (my $line = shift @commit_lines) {
1402                last if $line eq "\n";
1403                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1404                        $co{'tree'} = $1;
1405                } elsif ((!defined $withparents) && ($line =~ m/^parent ([0-9a-fA-F]{40})$/)) {
1406                        push @parents, $1;
1407                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1408                        $co{'author'} = $1;
1409                        $co{'author_epoch'} = $2;
1410                        $co{'author_tz'} = $3;
1411                        if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
1412                                $co{'author_name'}  = $1;
1413                                $co{'author_email'} = $2;
1414                        } else {
1415                                $co{'author_name'} = $co{'author'};
1416                        }
1417                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1418                        $co{'committer'} = $1;
1419                        $co{'committer_epoch'} = $2;
1420                        $co{'committer_tz'} = $3;
1421                        $co{'committer_name'} = $co{'committer'};
1422                        if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
1423                                $co{'committer_name'}  = $1;
1424                                $co{'committer_email'} = $2;
1425                        } else {
1426                                $co{'committer_name'} = $co{'committer'};
1427                        }
1428                }
1429        }
1430        if (!defined $co{'tree'}) {
1431                return;
1432        };
1433        $co{'parents'} = \@parents;
1434        $co{'parent'} = $parents[0];
1435
1436        foreach my $title (@commit_lines) {
1437                $title =~ s/^    //;
1438                if ($title ne "") {
1439                        $co{'title'} = chop_str($title, 80, 5);
1440                        # remove leading stuff of merges to make the interesting part visible
1441                        if (length($title) > 50) {
1442                                $title =~ s/^Automatic //;
1443                                $title =~ s/^merge (of|with) /Merge ... /i;
1444                                if (length($title) > 50) {
1445                                        $title =~ s/(http|rsync):\/\///;
1446                                }
1447                                if (length($title) > 50) {
1448                                        $title =~ s/(master|www|rsync)\.//;
1449                                }
1450                                if (length($title) > 50) {
1451                                        $title =~ s/kernel.org:?//;
1452                                }
1453                                if (length($title) > 50) {
1454                                        $title =~ s/\/pub\/scm//;
1455                                }
1456                        }
1457                        $co{'title_short'} = chop_str($title, 50, 5);
1458                        last;
1459                }
1460        }
1461        if ($co{'title'} eq "") {
1462                $co{'title'} = $co{'title_short'} = '(no commit message)';
1463        }
1464        # remove added spaces
1465        foreach my $line (@commit_lines) {
1466                $line =~ s/^    //;
1467        }
1468        $co{'comment'} = \@commit_lines;
1469
1470        my $age = time - $co{'committer_epoch'};
1471        $co{'age'} = $age;
1472        $co{'age_string'} = age_string($age);
1473        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1474        if ($age > 60*60*24*7*2) {
1475                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1476                $co{'age_string_age'} = $co{'age_string'};
1477        } else {
1478                $co{'age_string_date'} = $co{'age_string'};
1479                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1480        }
1481        return %co;
1482}
1483
1484sub parse_commit {
1485        my ($commit_id) = @_;
1486        my %co;
1487
1488        local $/ = "\0";
1489
1490        open my $fd, "-|", git_cmd(), "rev-list",
1491                "--parents",
1492                "--header",
1493                "--max-count=1",
1494                $commit_id,
1495                "--",
1496                or die_error(undef, "Open git-rev-list failed");
1497        %co = parse_commit_text(<$fd>, 1);
1498        close $fd;
1499
1500        return %co;
1501}
1502
1503sub parse_commits {
1504        my ($commit_id, $maxcount, $skip, $arg, $filename) = @_;
1505        my @cos;
1506
1507        $maxcount ||= 1;
1508        $skip ||= 0;
1509
1510        local $/ = "\0";
1511
1512        open my $fd, "-|", git_cmd(), "rev-list",
1513                "--header",
1514                ($arg ? ($arg) : ()),
1515                ("--max-count=" . $maxcount),
1516                ("--skip=" . $skip),
1517                $commit_id,
1518                "--",
1519                ($filename ? ($filename) : ())
1520                or die_error(undef, "Open git-rev-list failed");
1521        while (my $line = <$fd>) {
1522                my %co = parse_commit_text($line);
1523                push @cos, \%co;
1524        }
1525        close $fd;
1526
1527        return wantarray ? @cos : \@cos;
1528}
1529
1530# parse ref from ref_file, given by ref_id, with given type
1531sub parse_ref {
1532        my $ref_file = shift;
1533        my $ref_id = shift;
1534        my $type = shift || git_get_type($ref_id);
1535        my %ref_item;
1536
1537        $ref_item{'type'} = $type;
1538        $ref_item{'id'} = $ref_id;
1539        $ref_item{'epoch'} = 0;
1540        $ref_item{'age'} = "unknown";
1541        if ($type eq "tag") {
1542                my %tag = parse_tag($ref_id);
1543                $ref_item{'comment'} = $tag{'comment'};
1544                if ($tag{'type'} eq "commit") {
1545                        my %co = parse_commit($tag{'object'});
1546                        $ref_item{'epoch'} = $co{'committer_epoch'};
1547                        $ref_item{'age'} = $co{'age_string'};
1548                } elsif (defined($tag{'epoch'})) {
1549                        my $age = time - $tag{'epoch'};
1550                        $ref_item{'epoch'} = $tag{'epoch'};
1551                        $ref_item{'age'} = age_string($age);
1552                }
1553                $ref_item{'reftype'} = $tag{'type'};
1554                $ref_item{'name'} = $tag{'name'};
1555                $ref_item{'refid'} = $tag{'object'};
1556        } elsif ($type eq "commit"){
1557                my %co = parse_commit($ref_id);
1558                $ref_item{'reftype'} = "commit";
1559                $ref_item{'name'} = $ref_file;
1560                $ref_item{'title'} = $co{'title'};
1561                $ref_item{'refid'} = $ref_id;
1562                $ref_item{'epoch'} = $co{'committer_epoch'};
1563                $ref_item{'age'} = $co{'age_string'};
1564        } else {
1565                $ref_item{'reftype'} = $type;
1566                $ref_item{'name'} = $ref_file;
1567                $ref_item{'refid'} = $ref_id;
1568        }
1569
1570        return %ref_item;
1571}
1572
1573# parse line of git-diff-tree "raw" output
1574sub parse_difftree_raw_line {
1575        my $line = shift;
1576        my %res;
1577
1578        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1579        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1580        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1581                $res{'from_mode'} = $1;
1582                $res{'to_mode'} = $2;
1583                $res{'from_id'} = $3;
1584                $res{'to_id'} = $4;
1585                $res{'status'} = $5;
1586                $res{'similarity'} = $6;
1587                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1588                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1589                } else {
1590                        $res{'file'} = unquote($7);
1591                }
1592        }
1593        # '::100755 100755 100755 60e79ca1b01bc8b057abe17ddab484699a7f5fdb 94067cc5f73388f33722d52ae02f44692bc07490 94067cc5f73388f33722d52ae02f44692bc07490 MR git-gui/git-gui.sh'
1594        # combined diff (for merge commit)
1595        elsif ($line =~ s/^(::+)((?:[0-7]{6} )+)((?:[0-9a-fA-F]{40} )+)([a-zA-Z]+)\t(.*)$//) {
1596                $res{'nparents'}  = length($1);
1597                $res{'from_mode'} = [ split(' ', $2) ];
1598                $res{'to_mode'} = pop @{$res{'from_mode'}};
1599                $res{'from_id'} = [ split(' ', $3) ];
1600                $res{'to_id'} = pop @{$res{'from_id'}};
1601                $res{'status'} = [ split('', $4) ];
1602                $res{'to_file'} = unquote($5);
1603        }
1604        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1605        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1606                $res{'commit'} = $1;
1607        }
1608
1609        return wantarray ? %res : \%res;
1610}
1611
1612# parse line of git-ls-tree output
1613sub parse_ls_tree_line ($;%) {
1614        my $line = shift;
1615        my %opts = @_;
1616        my %res;
1617
1618        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1619        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1620
1621        $res{'mode'} = $1;
1622        $res{'type'} = $2;
1623        $res{'hash'} = $3;
1624        if ($opts{'-z'}) {
1625                $res{'name'} = $4;
1626        } else {
1627                $res{'name'} = unquote($4);
1628        }
1629
1630        return wantarray ? %res : \%res;
1631}
1632
1633## ......................................................................
1634## parse to array of hashes functions
1635
1636sub git_get_heads_list {
1637        my $limit = shift;
1638        my @headslist;
1639
1640        open my $fd, '-|', git_cmd(), 'for-each-ref',
1641                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1642                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1643                'refs/heads'
1644                or return;
1645        while (my $line = <$fd>) {
1646                my %ref_item;
1647
1648                chomp $line;
1649                my ($refinfo, $committerinfo) = split(/\0/, $line);
1650                my ($hash, $name, $title) = split(' ', $refinfo, 3);
1651                my ($committer, $epoch, $tz) =
1652                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1653                $name =~ s!^refs/heads/!!;
1654
1655                $ref_item{'name'}  = $name;
1656                $ref_item{'id'}    = $hash;
1657                $ref_item{'title'} = $title || '(no commit message)';
1658                $ref_item{'epoch'} = $epoch;
1659                if ($epoch) {
1660                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1661                } else {
1662                        $ref_item{'age'} = "unknown";
1663                }
1664
1665                push @headslist, \%ref_item;
1666        }
1667        close $fd;
1668
1669        return wantarray ? @headslist : \@headslist;
1670}
1671
1672sub git_get_tags_list {
1673        my $limit = shift;
1674        my @tagslist;
1675
1676        open my $fd, '-|', git_cmd(), 'for-each-ref',
1677                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1678                '--format=%(objectname) %(objecttype) %(refname) '.
1679                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1680                'refs/tags'
1681                or return;
1682        while (my $line = <$fd>) {
1683                my %ref_item;
1684
1685                chomp $line;
1686                my ($refinfo, $creatorinfo) = split(/\0/, $line);
1687                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1688                my ($creator, $epoch, $tz) =
1689                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1690                $name =~ s!^refs/tags/!!;
1691
1692                $ref_item{'type'} = $type;
1693                $ref_item{'id'} = $id;
1694                $ref_item{'name'} = $name;
1695                if ($type eq "tag") {
1696                        $ref_item{'subject'} = $title;
1697                        $ref_item{'reftype'} = $reftype;
1698                        $ref_item{'refid'}   = $refid;
1699                } else {
1700                        $ref_item{'reftype'} = $type;
1701                        $ref_item{'refid'}   = $id;
1702                }
1703
1704                if ($type eq "tag" || $type eq "commit") {
1705                        $ref_item{'epoch'} = $epoch;
1706                        if ($epoch) {
1707                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1708                        } else {
1709                                $ref_item{'age'} = "unknown";
1710                        }
1711                }
1712
1713                push @tagslist, \%ref_item;
1714        }
1715        close $fd;
1716
1717        return wantarray ? @tagslist : \@tagslist;
1718}
1719
1720## ----------------------------------------------------------------------
1721## filesystem-related functions
1722
1723sub get_file_owner {
1724        my $path = shift;
1725
1726        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1727        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1728        if (!defined $gcos) {
1729                return undef;
1730        }
1731        my $owner = $gcos;
1732        $owner =~ s/[,;].*$//;
1733        return decode_utf8($owner);
1734}
1735
1736## ......................................................................
1737## mimetype related functions
1738
1739sub mimetype_guess_file {
1740        my $filename = shift;
1741        my $mimemap = shift;
1742        -r $mimemap or return undef;
1743
1744        my %mimemap;
1745        open(MIME, $mimemap) or return undef;
1746        while (<MIME>) {
1747                next if m/^#/; # skip comments
1748                my ($mime, $exts) = split(/\t+/);
1749                if (defined $exts) {
1750                        my @exts = split(/\s+/, $exts);
1751                        foreach my $ext (@exts) {
1752                                $mimemap{$ext} = $mime;
1753                        }
1754                }
1755        }
1756        close(MIME);
1757
1758        $filename =~ /\.([^.]*)$/;
1759        return $mimemap{$1};
1760}
1761
1762sub mimetype_guess {
1763        my $filename = shift;
1764        my $mime;
1765        $filename =~ /\./ or return undef;
1766
1767        if ($mimetypes_file) {
1768                my $file = $mimetypes_file;
1769                if ($file !~ m!^/!) { # if it is relative path
1770                        # it is relative to project
1771                        $file = "$projectroot/$project/$file";
1772                }
1773                $mime = mimetype_guess_file($filename, $file);
1774        }
1775        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1776        return $mime;
1777}
1778
1779sub blob_mimetype {
1780        my $fd = shift;
1781        my $filename = shift;
1782
1783        if ($filename) {
1784                my $mime = mimetype_guess($filename);
1785                $mime and return $mime;
1786        }
1787
1788        # just in case
1789        return $default_blob_plain_mimetype unless $fd;
1790
1791        if (-T $fd) {
1792                return 'text/plain' .
1793                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1794        } elsif (! $filename) {
1795                return 'application/octet-stream';
1796        } elsif ($filename =~ m/\.png$/i) {
1797                return 'image/png';
1798        } elsif ($filename =~ m/\.gif$/i) {
1799                return 'image/gif';
1800        } elsif ($filename =~ m/\.jpe?g$/i) {
1801                return 'image/jpeg';
1802        } else {
1803                return 'application/octet-stream';
1804        }
1805}
1806
1807## ======================================================================
1808## functions printing HTML: header, footer, error page
1809
1810sub git_header_html {
1811        my $status = shift || "200 OK";
1812        my $expires = shift;
1813
1814        my $title = "$site_name";
1815        if (defined $project) {
1816                $title .= " - " . decode_utf8($project);
1817                if (defined $action) {
1818                        $title .= "/$action";
1819                        if (defined $file_name) {
1820                                $title .= " - " . esc_path($file_name);
1821                                if ($action eq "tree" && $file_name !~ m|/$|) {
1822                                        $title .= "/";
1823                                }
1824                        }
1825                }
1826        }
1827        my $content_type;
1828        # require explicit support from the UA if we are to send the page as
1829        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1830        # we have to do this because MSIE sometimes globs '*/*', pretending to
1831        # support xhtml+xml but choking when it gets what it asked for.
1832        if (defined $cgi->http('HTTP_ACCEPT') &&
1833            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1834            $cgi->Accept('application/xhtml+xml') != 0) {
1835                $content_type = 'application/xhtml+xml';
1836        } else {
1837                $content_type = 'text/html';
1838        }
1839        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1840                           -status=> $status, -expires => $expires);
1841        my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : '';
1842        print <<EOF;
1843<?xml version="1.0" encoding="utf-8"?>
1844<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1845<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1846<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1847<!-- git core binaries version $git_version -->
1848<head>
1849<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1850<meta name="generator" content="gitweb/$version git/$git_version$mod_perl_version"/>
1851<meta name="robots" content="index, nofollow"/>
1852<title>$title</title>
1853EOF
1854# print out each stylesheet that exist
1855        if (defined $stylesheet) {
1856#provides backwards capability for those people who define style sheet in a config file
1857                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1858        } else {
1859                foreach my $stylesheet (@stylesheets) {
1860                        next unless $stylesheet;
1861                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1862                }
1863        }
1864        if (defined $project) {
1865                printf('<link rel="alternate" title="%s log RSS feed" '.
1866                       'href="%s" type="application/rss+xml" />'."\n",
1867                       esc_param($project), href(action=>"rss"));
1868                printf('<link rel="alternate" title="%s log Atom feed" '.
1869                       'href="%s" type="application/atom+xml" />'."\n",
1870                       esc_param($project), href(action=>"atom"));
1871        } else {
1872                printf('<link rel="alternate" title="%s projects list" '.
1873                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1874                       $site_name, href(project=>undef, action=>"project_index"));
1875                printf('<link rel="alternate" title="%s projects feeds" '.
1876                       'href="%s" type="text/x-opml"/>'."\n",
1877                       $site_name, href(project=>undef, action=>"opml"));
1878        }
1879        if (defined $favicon) {
1880                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1881        }
1882
1883        print "</head>\n" .
1884              "<body>\n";
1885
1886        if (-f $site_header) {
1887                open (my $fd, $site_header);
1888                print <$fd>;
1889                close $fd;
1890        }
1891
1892        print "<div class=\"page_header\">\n" .
1893              $cgi->a({-href => esc_url($logo_url),
1894                       -title => $logo_label},
1895                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1896        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1897        if (defined $project) {
1898                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1899                if (defined $action) {
1900                        print " / $action";
1901                }
1902                print "\n";
1903        }
1904        my ($have_search) = gitweb_check_feature('search');
1905        if ((defined $project) && ($have_search)) {
1906                if (!defined $searchtext) {
1907                        $searchtext = "";
1908                }
1909                my $search_hash;
1910                if (defined $hash_base) {
1911                        $search_hash = $hash_base;
1912                } elsif (defined $hash) {
1913                        $search_hash = $hash;
1914                } else {
1915                        $search_hash = "HEAD";
1916                }
1917                $cgi->param("a", "search");
1918                $cgi->param("h", $search_hash);
1919                $cgi->param("p", $project);
1920                print $cgi->startform(-method => "get", -action => $my_uri) .
1921                      "<div class=\"search\">\n" .
1922                      $cgi->hidden(-name => "p") . "\n" .
1923                      $cgi->hidden(-name => "a") . "\n" .
1924                      $cgi->hidden(-name => "h") . "\n" .
1925                      $cgi->popup_menu(-name => 'st', -default => 'commit',
1926                                       -values => ['commit', 'author', 'committer', 'pickaxe']) .
1927                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1928                      " search:\n",
1929                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1930                      "</div>" .
1931                      $cgi->end_form() . "\n";
1932        }
1933        print "</div>\n";
1934}
1935
1936sub git_footer_html {
1937        print "<div class=\"page_footer\">\n";
1938        if (defined $project) {
1939                my $descr = git_get_project_description($project);
1940                if (defined $descr) {
1941                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1942                }
1943                print $cgi->a({-href => href(action=>"rss"),
1944                              -class => "rss_logo"}, "RSS") . " ";
1945                print $cgi->a({-href => href(action=>"atom"),
1946                              -class => "rss_logo"}, "Atom") . "\n";
1947        } else {
1948                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1949                              -class => "rss_logo"}, "OPML") . " ";
1950                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1951                              -class => "rss_logo"}, "TXT") . "\n";
1952        }
1953        print "</div>\n" ;
1954
1955        if (-f $site_footer) {
1956                open (my $fd, $site_footer);
1957                print <$fd>;
1958                close $fd;
1959        }
1960
1961        print "</body>\n" .
1962              "</html>";
1963}
1964
1965sub die_error {
1966        my $status = shift || "403 Forbidden";
1967        my $error = shift || "Malformed query, file missing or permission denied";
1968
1969        git_header_html($status);
1970        print <<EOF;
1971<div class="page_body">
1972<br /><br />
1973$status - $error
1974<br />
1975</div>
1976EOF
1977        git_footer_html();
1978        exit;
1979}
1980
1981## ----------------------------------------------------------------------
1982## functions printing or outputting HTML: navigation
1983
1984sub git_print_page_nav {
1985        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1986        $extra = '' if !defined $extra; # pager or formats
1987
1988        my @navs = qw(summary shortlog log commit commitdiff tree);
1989        if ($suppress) {
1990                @navs = grep { $_ ne $suppress } @navs;
1991        }
1992
1993        my %arg = map { $_ => {action=>$_} } @navs;
1994        if (defined $head) {
1995                for (qw(commit commitdiff)) {
1996                        $arg{$_}{'hash'} = $head;
1997                }
1998                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1999                        for (qw(shortlog log)) {
2000                                $arg{$_}{'hash'} = $head;
2001                        }
2002                }
2003        }
2004        $arg{'tree'}{'hash'} = $treehead if defined $treehead;
2005        $arg{'tree'}{'hash_base'} = $treebase if defined $treebase;
2006
2007        print "<div class=\"page_nav\">\n" .
2008                (join " | ",
2009                 map { $_ eq $current ?
2010                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
2011                 } @navs);
2012        print "<br/>\n$extra<br/>\n" .
2013              "</div>\n";
2014}
2015
2016sub format_paging_nav {
2017        my ($action, $hash, $head, $page, $nrevs) = @_;
2018        my $paging_nav;
2019
2020
2021        if ($hash ne $head || $page) {
2022                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
2023        } else {
2024                $paging_nav .= "HEAD";
2025        }
2026
2027        if ($page > 0) {
2028                $paging_nav .= " &sdot; " .
2029                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
2030                                 -accesskey => "p", -title => "Alt-p"}, "prev");
2031        } else {
2032                $paging_nav .= " &sdot; prev";
2033        }
2034
2035        if ($nrevs >= (100 * ($page+1)-1)) {
2036                $paging_nav .= " &sdot; " .
2037                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
2038                                 -accesskey => "n", -title => "Alt-n"}, "next");
2039        } else {
2040                $paging_nav .= " &sdot; next";
2041        }
2042
2043        return $paging_nav;
2044}
2045
2046## ......................................................................
2047## functions printing or outputting HTML: div
2048
2049sub git_print_header_div {
2050        my ($action, $title, $hash, $hash_base) = @_;
2051        my %args = ();
2052
2053        $args{'action'} = $action;
2054        $args{'hash'} = $hash if $hash;
2055        $args{'hash_base'} = $hash_base if $hash_base;
2056
2057        print "<div class=\"header\">\n" .
2058              $cgi->a({-href => href(%args), -class => "title"},
2059              $title ? $title : $action) .
2060              "\n</div>\n";
2061}
2062
2063#sub git_print_authorship (\%) {
2064sub git_print_authorship {
2065        my $co = shift;
2066
2067        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
2068        print "<div class=\"author_date\">" .
2069              esc_html($co->{'author_name'}) .
2070              " [$ad{'rfc2822'}";
2071        if ($ad{'hour_local'} < 6) {
2072                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2073                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2074        } else {
2075                printf(" (%02d:%02d %s)",
2076                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2077        }
2078        print "]</div>\n";
2079}
2080
2081sub git_print_page_path {
2082        my $name = shift;
2083        my $type = shift;
2084        my $hb = shift;
2085
2086
2087        print "<div class=\"page_path\">";
2088        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
2089                      -title => 'tree root'}, decode_utf8("[$project]"));
2090        print " / ";
2091        if (defined $name) {
2092                my @dirname = split '/', $name;
2093                my $basename = pop @dirname;
2094                my $fullname = '';
2095
2096                foreach my $dir (@dirname) {
2097                        $fullname .= ($fullname ? '/' : '') . $dir;
2098                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
2099                                                     hash_base=>$hb),
2100                                      -title => $fullname}, esc_path($dir));
2101                        print " / ";
2102                }
2103                if (defined $type && $type eq 'blob') {
2104                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
2105                                                     hash_base=>$hb),
2106                                      -title => $name}, esc_path($basename));
2107                } elsif (defined $type && $type eq 'tree') {
2108                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
2109                                                     hash_base=>$hb),
2110                                      -title => $name}, esc_path($basename));
2111                        print " / ";
2112                } else {
2113                        print esc_path($basename);
2114                }
2115        }
2116        print "<br/></div>\n";
2117}
2118
2119# sub git_print_log (\@;%) {
2120sub git_print_log ($;%) {
2121        my $log = shift;
2122        my %opts = @_;
2123
2124        if ($opts{'-remove_title'}) {
2125                # remove title, i.e. first line of log
2126                shift @$log;
2127        }
2128        # remove leading empty lines
2129        while (defined $log->[0] && $log->[0] eq "") {
2130                shift @$log;
2131        }
2132
2133        # print log
2134        my $signoff = 0;
2135        my $empty = 0;
2136        foreach my $line (@$log) {
2137                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2138                        $signoff = 1;
2139                        $empty = 0;
2140                        if (! $opts{'-remove_signoff'}) {
2141                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2142                                next;
2143                        } else {
2144                                # remove signoff lines
2145                                next;
2146                        }
2147                } else {
2148                        $signoff = 0;
2149                }
2150
2151                # print only one empty line
2152                # do not print empty line after signoff
2153                if ($line eq "") {
2154                        next if ($empty || $signoff);
2155                        $empty = 1;
2156                } else {
2157                        $empty = 0;
2158                }
2159
2160                print format_log_line_html($line) . "<br/>\n";
2161        }
2162
2163        if ($opts{'-final_empty_line'}) {
2164                # end with single empty line
2165                print "<br/>\n" unless $empty;
2166        }
2167}
2168
2169# return link target (what link points to)
2170sub git_get_link_target {
2171        my $hash = shift;
2172        my $link_target;
2173
2174        # read link
2175        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2176                or return;
2177        {
2178                local $/;
2179                $link_target = <$fd>;
2180        }
2181        close $fd
2182                or return;
2183
2184        return $link_target;
2185}
2186
2187# given link target, and the directory (basedir) the link is in,
2188# return target of link relative to top directory (top tree);
2189# return undef if it is not possible (including absolute links).
2190sub normalize_link_target {
2191        my ($link_target, $basedir, $hash_base) = @_;
2192
2193        # we can normalize symlink target only if $hash_base is provided
2194        return unless $hash_base;
2195
2196        # absolute symlinks (beginning with '/') cannot be normalized
2197        return if (substr($link_target, 0, 1) eq '/');
2198
2199        # normalize link target to path from top (root) tree (dir)
2200        my $path;
2201        if ($basedir) {
2202                $path = $basedir . '/' . $link_target;
2203        } else {
2204                # we are in top (root) tree (dir)
2205                $path = $link_target;
2206        }
2207
2208        # remove //, /./, and /../
2209        my @path_parts;
2210        foreach my $part (split('/', $path)) {
2211                # discard '.' and ''
2212                next if (!$part || $part eq '.');
2213                # handle '..'
2214                if ($part eq '..') {
2215                        if (@path_parts) {
2216                                pop @path_parts;
2217                        } else {
2218                                # link leads outside repository (outside top dir)
2219                                return;
2220                        }
2221                } else {
2222                        push @path_parts, $part;
2223                }
2224        }
2225        $path = join('/', @path_parts);
2226
2227        return $path;
2228}
2229
2230# print tree entry (row of git_tree), but without encompassing <tr> element
2231sub git_print_tree_entry {
2232        my ($t, $basedir, $hash_base, $have_blame) = @_;
2233
2234        my %base_key = ();
2235        $base_key{'hash_base'} = $hash_base if defined $hash_base;
2236
2237        # The format of a table row is: mode list link.  Where mode is
2238        # the mode of the entry, list is the name of the entry, an href,
2239        # and link is the action links of the entry.
2240
2241        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
2242        if ($t->{'type'} eq "blob") {
2243                print "<td class=\"list\">" .
2244                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2245                                               file_name=>"$basedir$t->{'name'}", %base_key),
2246                                -class => "list"}, esc_path($t->{'name'}));
2247                if (S_ISLNK(oct $t->{'mode'})) {
2248                        my $link_target = git_get_link_target($t->{'hash'});
2249                        if ($link_target) {
2250                                my $norm_target = normalize_link_target($link_target, $basedir, $hash_base);
2251                                if (defined $norm_target) {
2252                                        print " -> " .
2253                                              $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
2254                                                                     file_name=>$norm_target),
2255                                                       -title => $norm_target}, esc_path($link_target));
2256                                } else {
2257                                        print " -> " . esc_path($link_target);
2258                                }
2259                        }
2260                }
2261                print "</td>\n";
2262                print "<td class=\"link\">";
2263                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2264                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2265                              "blob");
2266                if ($have_blame) {
2267                        print " | " .
2268                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
2269                                                     file_name=>"$basedir$t->{'name'}", %base_key)},
2270                                      "blame");
2271                }
2272                if (defined $hash_base) {
2273                        print " | " .
2274                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2275                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2276                                      "history");
2277                }
2278                print " | " .
2279                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2280                                               file_name=>"$basedir$t->{'name'}")},
2281                                "raw");
2282                print "</td>\n";
2283
2284        } elsif ($t->{'type'} eq "tree") {
2285                print "<td class=\"list\">";
2286                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2287                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2288                              esc_path($t->{'name'}));
2289                print "</td>\n";
2290                print "<td class=\"link\">";
2291                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2292                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2293                              "tree");
2294                if (defined $hash_base) {
2295                        print " | " .
2296                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2297                                                     file_name=>"$basedir$t->{'name'}")},
2298                                      "history");
2299                }
2300                print "</td>\n";
2301        }
2302}
2303
2304## ......................................................................
2305## functions printing large fragments of HTML
2306
2307sub fill_from_file_info {
2308        my ($diff, @parents) = @_;
2309
2310        $diff->{'from_file'} = [ ];
2311        $diff->{'from_file'}[$diff->{'nparents'} - 1] = undef;
2312        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2313                if ($diff->{'status'}[$i] eq 'R' ||
2314                    $diff->{'status'}[$i] eq 'C') {
2315                        $diff->{'from_file'}[$i] =
2316                                git_get_path_by_hash($parents[$i], $diff->{'from_id'}[$i]);
2317                }
2318        }
2319
2320        return $diff;
2321}
2322
2323# parameters can be strings, or references to arrays of strings
2324sub from_ids_eq {
2325        my ($a, $b) = @_;
2326
2327        if (ref($a) eq "ARRAY" && ref($b) eq "ARRAY" && @$a == @$b) {
2328                for (my $i = 0; $i < @$a; ++$i) {
2329                        return 0 unless ($a->[$i] eq $b->[$i]);
2330                }
2331                return 1;
2332        } elsif (!ref($a) && !ref($b)) {
2333                return $a eq $b;
2334        } else {
2335                return 0;
2336        }
2337}
2338
2339
2340sub git_difftree_body {
2341        my ($difftree, $hash, @parents) = @_;
2342        my ($parent) = $parents[0];
2343        my ($have_blame) = gitweb_check_feature('blame');
2344        print "<div class=\"list_head\">\n";
2345        if ($#{$difftree} > 10) {
2346                print(($#{$difftree} + 1) . " files changed:\n");
2347        }
2348        print "</div>\n";
2349
2350        print "<table class=\"" .
2351              (@parents > 1 ? "combined " : "") .
2352              "diff_tree\">\n";
2353        my $alternate = 1;
2354        my $patchno = 0;
2355        foreach my $line (@{$difftree}) {
2356                my $diff;
2357                if (ref($line) eq "HASH") {
2358                        # pre-parsed (or generated by hand)
2359                        $diff = $line;
2360                } else {
2361                        $diff = parse_difftree_raw_line($line);
2362                }
2363
2364                if ($alternate) {
2365                        print "<tr class=\"dark\">\n";
2366                } else {
2367                        print "<tr class=\"light\">\n";
2368                }
2369                $alternate ^= 1;
2370
2371                if (exists $diff->{'nparents'}) { # combined diff
2372
2373                        fill_from_file_info($diff, @parents)
2374                                unless exists $diff->{'from_file'};
2375
2376                        if ($diff->{'to_id'} ne ('0' x 40)) {
2377                                # file exists in the result (child) commit
2378                                print "<td>" .
2379                                      $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2380                                                             file_name=>$diff->{'to_file'},
2381                                                             hash_base=>$hash),
2382                                              -class => "list"}, esc_path($diff->{'to_file'})) .
2383                                      "</td>\n";
2384                        } else {
2385                                print "<td>" .
2386                                      esc_path($diff->{'to_file'}) .
2387                                      "</td>\n";
2388                        }
2389
2390                        if ($action eq 'commitdiff') {
2391                                # link to patch
2392                                $patchno++;
2393                                print "<td class=\"link\">" .
2394                                      $cgi->a({-href => "#patch$patchno"}, "patch") .
2395                                      " | " .
2396                                      "</td>\n";
2397                        }
2398
2399                        my $has_history = 0;
2400                        my $not_deleted = 0;
2401                        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2402                                my $hash_parent = $parents[$i];
2403                                my $from_hash = $diff->{'from_id'}[$i];
2404                                my $from_path = $diff->{'from_file'}[$i];
2405                                my $status = $diff->{'status'}[$i];
2406
2407                                $has_history ||= ($status ne 'A');
2408                                $not_deleted ||= ($status ne 'D');
2409
2410                                if ($status eq 'A') {
2411                                        print "<td  class=\"link\" align=\"right\"> | </td>\n";
2412                                } elsif ($status eq 'D') {
2413                                        print "<td class=\"link\">" .
2414                                              $cgi->a({-href => href(action=>"blob",
2415                                                                     hash_base=>$hash,
2416                                                                     hash=>$from_hash,
2417                                                                     file_name=>$from_path)},
2418                                                      "blob" . ($i+1)) .
2419                                              " | </td>\n";
2420                                } else {
2421                                        if ($diff->{'to_id'} eq $from_hash) {
2422                                                print "<td class=\"link nochange\">";
2423                                        } else {
2424                                                print "<td class=\"link\">";
2425                                        }
2426                                        print $cgi->a({-href => href(action=>"blobdiff",
2427                                                                     hash=>$diff->{'to_id'},
2428                                                                     hash_parent=>$from_hash,
2429                                                                     hash_base=>$hash,
2430                                                                     hash_parent_base=>$hash_parent,
2431                                                                     file_name=>$diff->{'to_file'},
2432                                                                     file_parent=>$from_path)},
2433                                                      "diff" . ($i+1)) .
2434                                              " | </td>\n";
2435                                }
2436                        }
2437
2438                        print "<td class=\"link\">";
2439                        if ($not_deleted) {
2440                                print $cgi->a({-href => href(action=>"blob",
2441                                                             hash=>$diff->{'to_id'},
2442                                                             file_name=>$diff->{'to_file'},
2443                                                             hash_base=>$hash)},
2444                                              "blob");
2445                                print " | " if ($has_history);
2446                        }
2447                        if ($has_history) {
2448                                print $cgi->a({-href => href(action=>"history",
2449                                                             file_name=>$diff->{'to_file'},
2450                                                             hash_base=>$hash)},
2451                                              "history");
2452                        }
2453                        print "</td>\n";
2454
2455                        print "</tr>\n";
2456                        next; # instead of 'else' clause, to avoid extra indent
2457                }
2458                # else ordinary diff
2459
2460                my ($to_mode_oct, $to_mode_str, $to_file_type);
2461                my ($from_mode_oct, $from_mode_str, $from_file_type);
2462                if ($diff->{'to_mode'} ne ('0' x 6)) {
2463                        $to_mode_oct = oct $diff->{'to_mode'};
2464                        if (S_ISREG($to_mode_oct)) { # only for regular file
2465                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2466                        }
2467                        $to_file_type = file_type($diff->{'to_mode'});
2468                }
2469                if ($diff->{'from_mode'} ne ('0' x 6)) {
2470                        $from_mode_oct = oct $diff->{'from_mode'};
2471                        if (S_ISREG($to_mode_oct)) { # only for regular file
2472                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2473                        }
2474                        $from_file_type = file_type($diff->{'from_mode'});
2475                }
2476
2477                if ($diff->{'status'} eq "A") { # created
2478                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2479                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2480                        $mode_chng   .= "]</span>";
2481                        print "<td>";
2482                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2483                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
2484                                      -class => "list"}, esc_path($diff->{'file'}));
2485                        print "</td>\n";
2486                        print "<td>$mode_chng</td>\n";
2487                        print "<td class=\"link\">";
2488                        if ($action eq 'commitdiff') {
2489                                # link to patch
2490                                $patchno++;
2491                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2492                                print " | ";
2493                        }
2494                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2495                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
2496                                      "blob");
2497                        print "</td>\n";
2498
2499                } elsif ($diff->{'status'} eq "D") { # deleted
2500                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2501                        print "<td>";
2502                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
2503                                                     hash_base=>$parent, file_name=>$diff->{'file'}),
2504                                       -class => "list"}, esc_path($diff->{'file'}));
2505                        print "</td>\n";
2506                        print "<td>$mode_chng</td>\n";
2507                        print "<td class=\"link\">";
2508                        if ($action eq 'commitdiff') {
2509                                # link to patch
2510                                $patchno++;
2511                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2512                                print " | ";
2513                        }
2514                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
2515                                                     hash_base=>$parent, file_name=>$diff->{'file'})},
2516                                      "blob") . " | ";
2517                        if ($have_blame) {
2518                                print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2519                                                             file_name=>$diff->{'file'})},
2520                                              "blame") . " | ";
2521                        }
2522                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2523                                                     file_name=>$diff->{'file'})},
2524                                      "history");
2525                        print "</td>\n";
2526
2527                } elsif ($diff->{'status'} eq "M" || $diff->{'status'} eq "T") { # modified, or type changed
2528                        my $mode_chnge = "";
2529                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
2530                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
2531                                if ($from_file_type ne $to_file_type) {
2532                                        $mode_chnge .= " from $from_file_type to $to_file_type";
2533                                }
2534                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
2535                                        if ($from_mode_str && $to_mode_str) {
2536                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2537                                        } elsif ($to_mode_str) {
2538                                                $mode_chnge .= " mode: $to_mode_str";
2539                                        }
2540                                }
2541                                $mode_chnge .= "]</span>\n";
2542                        }
2543                        print "<td>";
2544                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2545                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
2546                                      -class => "list"}, esc_path($diff->{'file'}));
2547                        print "</td>\n";
2548                        print "<td>$mode_chnge</td>\n";
2549                        print "<td class=\"link\">";
2550                        if ($action eq 'commitdiff') {
2551                                # link to patch
2552                                $patchno++;
2553                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2554                                      " | ";
2555                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
2556                                # "commit" view and modified file (not onlu mode changed)
2557                                print $cgi->a({-href => href(action=>"blobdiff",
2558                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
2559                                                             hash_base=>$hash, hash_parent_base=>$parent,
2560                                                             file_name=>$diff->{'file'})},
2561                                              "diff") .
2562                                      " | ";
2563                        }
2564                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2565                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
2566                                       "blob") . " | ";
2567                        if ($have_blame) {
2568                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2569                                                             file_name=>$diff->{'file'})},
2570                                              "blame") . " | ";
2571                        }
2572                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2573                                                     file_name=>$diff->{'file'})},
2574                                      "history");
2575                        print "</td>\n";
2576
2577                } elsif ($diff->{'status'} eq "R" || $diff->{'status'} eq "C") { # renamed or copied
2578                        my %status_name = ('R' => 'moved', 'C' => 'copied');
2579                        my $nstatus = $status_name{$diff->{'status'}};
2580                        my $mode_chng = "";
2581                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
2582                                # mode also for directories, so we cannot use $to_mode_str
2583                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2584                        }
2585                        print "<td>" .
2586                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2587                                                     hash=>$diff->{'to_id'}, file_name=>$diff->{'to_file'}),
2588                                      -class => "list"}, esc_path($diff->{'to_file'})) . "</td>\n" .
2589                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2590                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2591                                                     hash=>$diff->{'from_id'}, file_name=>$diff->{'from_file'}),
2592                                      -class => "list"}, esc_path($diff->{'from_file'})) .
2593                              " with " . (int $diff->{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2594                              "<td class=\"link\">";
2595                        if ($action eq 'commitdiff') {
2596                                # link to patch
2597                                $patchno++;
2598                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2599                                      " | ";
2600                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
2601                                # "commit" view and modified file (not only pure rename or copy)
2602                                print $cgi->a({-href => href(action=>"blobdiff",
2603                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
2604                                                             hash_base=>$hash, hash_parent_base=>$parent,
2605                                                             file_name=>$diff->{'to_file'}, file_parent=>$diff->{'from_file'})},
2606                                              "diff") .
2607                                      " | ";
2608                        }
2609                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2610                                                     hash_base=>$parent, file_name=>$diff->{'to_file'})},
2611                                      "blob") . " | ";
2612                        if ($have_blame) {
2613                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2614                                                             file_name=>$diff->{'to_file'})},
2615                                              "blame") . " | ";
2616                        }
2617                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2618                                                    file_name=>$diff->{'to_file'})},
2619                                      "history");
2620                        print "</td>\n";
2621
2622                } # we should not encounter Unmerged (U) or Unknown (X) status
2623                print "</tr>\n";
2624        }
2625        print "</table>\n";
2626}
2627
2628sub git_patchset_body {
2629        my ($fd, $difftree, $hash, @hash_parents) = @_;
2630        my ($hash_parent) = $hash_parents[0];
2631
2632        my $patch_idx = 0;
2633        my $patch_number = 0;
2634        my $patch_line;
2635        my $diffinfo;
2636        my (%from, %to);
2637
2638        print "<div class=\"patchset\">\n";
2639
2640        # skip to first patch
2641        while ($patch_line = <$fd>) {
2642                chomp $patch_line;
2643
2644                last if ($patch_line =~ m/^diff /);
2645        }
2646
2647 PATCH:
2648        while ($patch_line) {
2649                my @diff_header;
2650                my ($from_id, $to_id);
2651
2652                # git diff header
2653                #assert($patch_line =~ m/^diff /) if DEBUG;
2654                #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
2655                $patch_number++;
2656                push @diff_header, $patch_line;
2657
2658                # extended diff header
2659        EXTENDED_HEADER:
2660                while ($patch_line = <$fd>) {
2661                        chomp $patch_line;
2662
2663                        last EXTENDED_HEADER if ($patch_line =~ m/^--- |^diff /);
2664
2665                        if ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
2666                                $from_id = $1;
2667                                $to_id   = $2;
2668                        } elsif ($patch_line =~ m/^index ((?:[0-9a-fA-F]{40},)+[0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
2669                                $from_id = [ split(',', $1) ];
2670                                $to_id   = $2;
2671                        }
2672
2673                        push @diff_header, $patch_line;
2674                }
2675                my $last_patch_line = $patch_line;
2676
2677                # check if current patch belong to current raw line
2678                # and parse raw git-diff line if needed
2679                if (defined $diffinfo &&
2680                    defined $from_id && defined $to_id &&
2681                    from_ids_eq($diffinfo->{'from_id'}, $from_id) &&
2682                    $diffinfo->{'to_id'} eq $to_id) {
2683                        # this is continuation of a split patch
2684                        print "<div class=\"patch cont\">\n";
2685                } else {
2686                        # advance raw git-diff output if needed
2687                        $patch_idx++ if defined $diffinfo;
2688
2689                        # read and prepare patch information
2690                        if (ref($difftree->[$patch_idx]) eq "HASH") {
2691                                # pre-parsed (or generated by hand)
2692                                $diffinfo = $difftree->[$patch_idx];
2693                        } else {
2694                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2695                        }
2696                        if ($diffinfo->{'nparents'}) {
2697                                # combined diff
2698                                $from{'file'} = [];
2699                                $from{'href'} = [];
2700                                fill_from_file_info($diffinfo, @hash_parents)
2701                                        unless exists $diffinfo->{'from_file'};
2702                                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
2703                                        $from{'file'}[$i] = $diffinfo->{'from_file'}[$i] || $diffinfo->{'to_file'};
2704                                        if ($diffinfo->{'status'}[$i] ne "A") { # not new (added) file
2705                                                $from{'href'}[$i] = href(action=>"blob",
2706                                                                         hash_base=>$hash_parents[$i],
2707                                                                         hash=>$diffinfo->{'from_id'}[$i],
2708                                                                         file_name=>$from{'file'}[$i]);
2709                                        } else {
2710                                                $from{'href'}[$i] = undef;
2711                                        }
2712                                }
2713                        } else {
2714                                $from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2715                                if ($diffinfo->{'status'} ne "A") { # not new (added) file
2716                                        $from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2717                                                             hash=>$diffinfo->{'from_id'},
2718                                                             file_name=>$from{'file'});
2719                                } else {
2720                                        delete $from{'href'};
2721                                }
2722                        }
2723                        $to{'file'} = $diffinfo->{'to_file'} || $diffinfo->{'file'};
2724                        if ($diffinfo->{'status'} ne "D") { # not deleted file
2725                                $to{'href'} = href(action=>"blob", hash_base=>$hash,
2726                                                   hash=>$diffinfo->{'to_id'},
2727                                                   file_name=>$to{'file'});
2728                        } else {
2729                                delete $to{'href'};
2730                        }
2731                        # this is first patch for raw difftree line with $patch_idx index
2732                        # we index @$difftree array from 0, but number patches from 1
2733                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2734                }
2735
2736                # print "git diff" header
2737                $patch_line = shift @diff_header;
2738                if ($diffinfo->{'nparents'}) {
2739
2740                        # combined diff
2741                        $patch_line =~ s!^(diff (.*?) )"?.*$!$1!;
2742                        if ($to{'href'}) {
2743                                $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2744                                                       esc_path($to{'file'}));
2745                        } else { # file was deleted
2746                                $patch_line .= esc_path($to{'file'});
2747                        }
2748
2749                } else {
2750
2751                        $patch_line =~ s!^(diff (.*?) )"?a/.*$!$1!;
2752                        if ($from{'href'}) {
2753                                $patch_line .= $cgi->a({-href => $from{'href'}, -class => "path"},
2754                                                       'a/' . esc_path($from{'file'}));
2755                        } else { # file was added
2756                                $patch_line .= 'a/' . esc_path($from{'file'});
2757                        }
2758                        $patch_line .= ' ';
2759                        if ($to{'href'}) {
2760                                $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2761                                                       'b/' . esc_path($to{'file'}));
2762                        } else { # file was deleted
2763                                $patch_line .= 'b/' . esc_path($to{'file'});
2764                        }
2765
2766                }
2767                print "<div class=\"diff header\">$patch_line</div>\n";
2768
2769                # print extended diff header
2770                print "<div class=\"diff extended_header\">\n" if (@diff_header > 0);
2771        EXTENDED_HEADER:
2772                foreach $patch_line (@diff_header) {
2773                        # match <path>
2774                        if ($patch_line =~ s!^((copy|rename) from ).*$!$1! && $from{'href'}) {
2775                                $patch_line .= $cgi->a({-href=>$from{'href'}, -class=>"path"},
2776                                                       esc_path($from{'file'}));
2777                        }
2778                        if ($patch_line =~ s!^((copy|rename) to ).*$!$1! && $to{'href'}) {
2779                                $patch_line .= $cgi->a({-href=>$to{'href'}, -class=>"path"},
2780                                                       esc_path($to{'file'}));
2781                        }
2782                        # match single <mode>
2783                        if ($patch_line =~ m/\s(\d{6})$/) {
2784                                $patch_line .= '<span class="info"> (' .
2785                                               file_type_long($1) .
2786                                               ')</span>';
2787                        }
2788                        # match <hash>
2789                        if ($patch_line =~ m/^index [0-9a-fA-F]{40},[0-9a-fA-F]{40}/) {
2790                                # can match only for combined diff
2791                                $patch_line = 'index ';
2792                                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
2793                                        if ($from{'href'}[$i]) {
2794                                                $patch_line .= $cgi->a({-href=>$from{'href'}[$i],
2795                                                                        -class=>"hash"},
2796                                                                       substr($diffinfo->{'from_id'}[$i],0,7));
2797                                        } else {
2798                                                $patch_line .= '0' x 7;
2799                                        }
2800                                        # separator
2801                                        $patch_line .= ',' if ($i < $diffinfo->{'nparents'} - 1);
2802                                }
2803                                $patch_line .= '..';
2804                                if ($to{'href'}) {
2805                                        $patch_line .= $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2806                                                               substr($diffinfo->{'to_id'},0,7));
2807                                } else {
2808                                        $patch_line .= '0' x 7;
2809                                }
2810
2811                        } elsif ($patch_line =~ m/^index [0-9a-fA-F]{40}..[0-9a-fA-F]{40}/) {
2812                                # can match only for ordinary diff
2813                                my ($from_link, $to_link);
2814                                if ($from{'href'}) {
2815                                        $from_link = $cgi->a({-href=>$from{'href'}, -class=>"hash"},
2816                                                             substr($diffinfo->{'from_id'},0,7));
2817                                } else {
2818                                        $from_link = '0' x 7;
2819                                }
2820                                if ($to{'href'}) {
2821                                        $to_link = $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2822                                                           substr($diffinfo->{'to_id'},0,7));
2823                                } else {
2824                                        $to_link = '0' x 7;
2825                                }
2826                                #affirm {
2827                                #       my ($from_hash, $to_hash) =
2828                                #               ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/);
2829                                #       my ($from_id, $to_id) =
2830                                #               ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2831                                #       ($from_hash eq $from_id) && ($to_hash eq $to_id);
2832                                #} if DEBUG;
2833                                my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2834                                $patch_line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
2835                        }
2836                        print $patch_line . "<br/>\n";
2837                }
2838                print "</div>\n"  if (@diff_header > 0); # class="diff extended_header"
2839
2840                # from-file/to-file diff header
2841                $patch_line = $last_patch_line;
2842                if (! $patch_line) {
2843                        print "</div>\n"; # class="patch"
2844                        last PATCH;
2845                }
2846                next PATCH if ($patch_line =~ m/^diff /);
2847                #assert($patch_line =~ m/^---/) if DEBUG;
2848                if (!$diffinfo->{'nparents'} && # not from-file line for combined diff
2849                    $from{'href'} && $patch_line =~ m!^--- "?a/!) {
2850                        $patch_line = '--- a/' .
2851                                      $cgi->a({-href=>$from{'href'}, -class=>"path"},
2852                                              esc_path($from{'file'}));
2853                }
2854                print "<div class=\"diff from_file\">$patch_line</div>\n";
2855
2856                $patch_line = <$fd>;
2857                chomp $patch_line;
2858
2859                #assert($patch_line =~ m/^+++/) if DEBUG;
2860                if ($to{'href'} && $patch_line =~ m!^\+\+\+ "?b/!) {
2861                        $patch_line = '+++ b/' .
2862                                      $cgi->a({-href=>$to{'href'}, -class=>"path"},
2863                                              esc_path($to{'file'}));
2864                }
2865                print "<div class=\"diff to_file\">$patch_line</div>\n";
2866
2867                # the patch itself
2868        LINE:
2869                while ($patch_line = <$fd>) {
2870                        chomp $patch_line;
2871
2872                        next PATCH if ($patch_line =~ m/^diff /);
2873
2874                        print format_diff_line($patch_line, \%from, \%to);
2875                }
2876
2877        } continue {
2878                print "</div>\n"; # class="patch"
2879        }
2880
2881        if ($patch_number == 0) {
2882                if (@hash_parents > 1) {
2883                        print "<div class=\"diff nodifferences\">Trivial merge</div>\n";
2884                } else {
2885                        print "<div class=\"diff nodifferences\">No differences found</div>\n";
2886                }
2887        }
2888
2889        print "</div>\n"; # class="patchset"
2890}
2891
2892# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2893
2894sub git_project_list_body {
2895        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2896
2897        my ($check_forks) = gitweb_check_feature('forks');
2898
2899        my @projects;
2900        foreach my $pr (@$projlist) {
2901                my (@aa) = git_get_last_activity($pr->{'path'});
2902                unless (@aa) {
2903                        next;
2904                }
2905                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2906                if (!defined $pr->{'descr'}) {
2907                        my $descr = git_get_project_description($pr->{'path'}) || "";
2908                        $pr->{'descr_long'} = decode_utf8($descr);
2909                        $pr->{'descr'} = chop_str($descr, 25, 5);
2910                }
2911                if (!defined $pr->{'owner'}) {
2912                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2913                }
2914                if ($check_forks) {
2915                        my $pname = $pr->{'path'};
2916                        if (($pname =~ s/\.git$//) &&
2917                            ($pname !~ /\/$/) &&
2918                            (-d "$projectroot/$pname")) {
2919                                $pr->{'forks'} = "-d $projectroot/$pname";
2920                        }
2921                        else {
2922                                $pr->{'forks'} = 0;
2923                        }
2924                }
2925                push @projects, $pr;
2926        }
2927
2928        $order ||= $default_projects_order;
2929        $from = 0 unless defined $from;
2930        $to = $#projects if (!defined $to || $#projects < $to);
2931
2932        print "<table class=\"project_list\">\n";
2933        unless ($no_header) {
2934                print "<tr>\n";
2935                if ($check_forks) {
2936                        print "<th></th>\n";
2937                }
2938                if ($order eq "project") {
2939                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2940                        print "<th>Project</th>\n";
2941                } else {
2942                        print "<th>" .
2943                              $cgi->a({-href => href(project=>undef, order=>'project'),
2944                                       -class => "header"}, "Project") .
2945                              "</th>\n";
2946                }
2947                if ($order eq "descr") {
2948                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2949                        print "<th>Description</th>\n";
2950                } else {
2951                        print "<th>" .
2952                              $cgi->a({-href => href(project=>undef, order=>'descr'),
2953                                       -class => "header"}, "Description") .
2954                              "</th>\n";
2955                }
2956                if ($order eq "owner") {
2957                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2958                        print "<th>Owner</th>\n";
2959                } else {
2960                        print "<th>" .
2961                              $cgi->a({-href => href(project=>undef, order=>'owner'),
2962                                       -class => "header"}, "Owner") .
2963                              "</th>\n";
2964                }
2965                if ($order eq "age") {
2966                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2967                        print "<th>Last Change</th>\n";
2968                } else {
2969                        print "<th>" .
2970                              $cgi->a({-href => href(project=>undef, order=>'age'),
2971                                       -class => "header"}, "Last Change") .
2972                              "</th>\n";
2973                }
2974                print "<th></th>\n" .
2975                      "</tr>\n";
2976        }
2977        my $alternate = 1;
2978        for (my $i = $from; $i <= $to; $i++) {
2979                my $pr = $projects[$i];
2980                if ($alternate) {
2981                        print "<tr class=\"dark\">\n";
2982                } else {
2983                        print "<tr class=\"light\">\n";
2984                }
2985                $alternate ^= 1;
2986                if ($check_forks) {
2987                        print "<td>";
2988                        if ($pr->{'forks'}) {
2989                                print "<!-- $pr->{'forks'} -->\n";
2990                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2991                        }
2992                        print "</td>\n";
2993                }
2994                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2995                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2996                      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2997                                        -class => "list", -title => $pr->{'descr_long'}},
2998                                        esc_html($pr->{'descr'})) . "</td>\n" .
2999                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
3000                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
3001                      (defined $pr->{'age_string'} ? $pr->{'age_string'} : "No commits") . "</td>\n" .
3002                      "<td class=\"link\">" .
3003                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
3004                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
3005                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
3006                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
3007                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
3008                      "</td>\n" .
3009                      "</tr>\n";
3010        }
3011        if (defined $extra) {
3012                print "<tr>\n";
3013                if ($check_forks) {
3014                        print "<td></td>\n";
3015                }
3016                print "<td colspan=\"5\">$extra</td>\n" .
3017                      "</tr>\n";
3018        }
3019        print "</table>\n";
3020}
3021
3022sub git_shortlog_body {
3023        # uses global variable $project
3024        my ($commitlist, $from, $to, $refs, $extra) = @_;
3025
3026        my $have_snapshot = gitweb_have_snapshot();
3027
3028        $from = 0 unless defined $from;
3029        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3030
3031        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
3032        my $alternate = 1;
3033        for (my $i = $from; $i <= $to; $i++) {
3034                my %co = %{$commitlist->[$i]};
3035                my $commit = $co{'id'};
3036                my $ref = format_ref_marker($refs, $commit);
3037                if ($alternate) {
3038                        print "<tr class=\"dark\">\n";
3039                } else {
3040                        print "<tr class=\"light\">\n";
3041                }
3042                $alternate ^= 1;
3043                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
3044                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3045                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
3046                      "<td>";
3047                print format_subject_html($co{'title'}, $co{'title_short'},
3048                                          href(action=>"commit", hash=>$commit), $ref);
3049                print "</td>\n" .
3050                      "<td class=\"link\">" .
3051                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
3052                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
3053                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
3054                if ($have_snapshot) {
3055                        print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
3056                }
3057                print "</td>\n" .
3058                      "</tr>\n";
3059        }
3060        if (defined $extra) {
3061                print "<tr>\n" .
3062                      "<td colspan=\"4\">$extra</td>\n" .
3063                      "</tr>\n";
3064        }
3065        print "</table>\n";
3066}
3067
3068sub git_history_body {
3069        # Warning: assumes constant type (blob or tree) during history
3070        my ($commitlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
3071
3072        $from = 0 unless defined $from;
3073        $to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
3074
3075        print "<table class=\"history\" cellspacing=\"0\">\n";
3076        my $alternate = 1;
3077        for (my $i = $from; $i <= $to; $i++) {
3078                my %co = %{$commitlist->[$i]};
3079                if (!%co) {
3080                        next;
3081                }
3082                my $commit = $co{'id'};
3083
3084                my $ref = format_ref_marker($refs, $commit);
3085
3086                if ($alternate) {
3087                        print "<tr class=\"dark\">\n";
3088                } else {
3089                        print "<tr class=\"light\">\n";
3090                }
3091                $alternate ^= 1;
3092                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3093                      # shortlog uses      chop_str($co{'author_name'}, 10)
3094                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
3095                      "<td>";
3096                # originally git_history used chop_str($co{'title'}, 50)
3097                print format_subject_html($co{'title'}, $co{'title_short'},
3098                                          href(action=>"commit", hash=>$commit), $ref);
3099                print "</td>\n" .
3100                      "<td class=\"link\">" .
3101                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
3102                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
3103
3104                if ($ftype eq 'blob') {
3105                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
3106                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
3107                        if (defined $blob_current && defined $blob_parent &&
3108                                        $blob_current ne $blob_parent) {
3109                                print " | " .
3110                                        $cgi->a({-href => href(action=>"blobdiff",
3111                                                               hash=>$blob_current, hash_parent=>$blob_parent,
3112                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
3113                                                               file_name=>$file_name)},
3114                                                "diff to current");
3115                        }
3116                }
3117                print "</td>\n" .
3118                      "</tr>\n";
3119        }
3120        if (defined $extra) {
3121                print "<tr>\n" .
3122                      "<td colspan=\"4\">$extra</td>\n" .
3123                      "</tr>\n";
3124        }
3125        print "</table>\n";
3126}
3127
3128sub git_tags_body {
3129        # uses global variable $project
3130        my ($taglist, $from, $to, $extra) = @_;
3131        $from = 0 unless defined $from;
3132        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
3133
3134        print "<table class=\"tags\" cellspacing=\"0\">\n";
3135        my $alternate = 1;
3136        for (my $i = $from; $i <= $to; $i++) {
3137                my $entry = $taglist->[$i];
3138                my %tag = %$entry;
3139                my $comment = $tag{'subject'};
3140                my $comment_short;
3141                if (defined $comment) {
3142                        $comment_short = chop_str($comment, 30, 5);
3143                }
3144                if ($alternate) {
3145                        print "<tr class=\"dark\">\n";
3146                } else {
3147                        print "<tr class=\"light\">\n";
3148                }
3149                $alternate ^= 1;
3150                if (defined $tag{'age'}) {
3151                        print "<td><i>$tag{'age'}</i></td>\n";
3152                } else {
3153                        print "<td></td>\n";
3154                }
3155                print "<td>" .
3156                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
3157                               -class => "list name"}, esc_html($tag{'name'})) .
3158                      "</td>\n" .
3159                      "<td>";
3160                if (defined $comment) {
3161                        print format_subject_html($comment, $comment_short,
3162                                                  href(action=>"tag", hash=>$tag{'id'}));
3163                }
3164                print "</td>\n" .
3165                      "<td class=\"selflink\">";
3166                if ($tag{'type'} eq "tag") {
3167                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
3168                } else {
3169                        print "&nbsp;";
3170                }
3171                print "</td>\n" .
3172                      "<td class=\"link\">" . " | " .
3173                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
3174                if ($tag{'reftype'} eq "commit") {
3175                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
3176                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
3177                } elsif ($tag{'reftype'} eq "blob") {
3178                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
3179                }
3180                print "</td>\n" .
3181                      "</tr>";
3182        }
3183        if (defined $extra) {
3184                print "<tr>\n" .
3185                      "<td colspan=\"5\">$extra</td>\n" .
3186                      "</tr>\n";
3187        }
3188        print "</table>\n";
3189}
3190
3191sub git_heads_body {
3192        # uses global variable $project
3193        my ($headlist, $head, $from, $to, $extra) = @_;
3194        $from = 0 unless defined $from;
3195        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
3196
3197        print "<table class=\"heads\" cellspacing=\"0\">\n";
3198        my $alternate = 1;
3199        for (my $i = $from; $i <= $to; $i++) {
3200                my $entry = $headlist->[$i];
3201                my %ref = %$entry;
3202                my $curr = $ref{'id'} eq $head;
3203                if ($alternate) {
3204                        print "<tr class=\"dark\">\n";
3205                } else {
3206                        print "<tr class=\"light\">\n";
3207                }
3208                $alternate ^= 1;
3209                print "<td><i>$ref{'age'}</i></td>\n" .
3210                      ($curr ? "<td class=\"current_head\">" : "<td>") .
3211                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
3212                               -class => "list name"},esc_html($ref{'name'})) .
3213                      "</td>\n" .
3214                      "<td class=\"link\">" .
3215                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
3216                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
3217                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
3218                      "</td>\n" .
3219                      "</tr>";
3220        }
3221        if (defined $extra) {
3222                print "<tr>\n" .
3223                      "<td colspan=\"3\">$extra</td>\n" .
3224                      "</tr>\n";
3225        }
3226        print "</table>\n";
3227}
3228
3229sub git_search_grep_body {
3230        my ($commitlist, $from, $to, $extra) = @_;
3231        $from = 0 unless defined $from;
3232        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3233
3234        print "<table class=\"grep\" cellspacing=\"0\">\n";
3235        my $alternate = 1;
3236        for (my $i = $from; $i <= $to; $i++) {
3237                my %co = %{$commitlist->[$i]};
3238                if (!%co) {
3239                        next;
3240                }
3241                my $commit = $co{'id'};
3242                if ($alternate) {
3243                        print "<tr class=\"dark\">\n";
3244                } else {
3245                        print "<tr class=\"light\">\n";
3246                }
3247                $alternate ^= 1;
3248                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3249                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3250                      "<td>" .
3251                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3252                               esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3253                my $comment = $co{'comment'};
3254                foreach my $line (@$comment) {
3255                        if ($line =~ m/^(.*)($search_regexp)(.*)$/i) {
3256                                my $lead = esc_html($1) || "";
3257                                $lead = chop_str($lead, 30, 10);
3258                                my $match = esc_html($2) || "";
3259                                my $trail = esc_html($3) || "";
3260                                $trail = chop_str($trail, 30, 10);
3261                                my $text = "$lead<span class=\"match\">$match</span>$trail";
3262                                print chop_str($text, 80, 5) . "<br/>\n";
3263                        }
3264                }
3265                print "</td>\n" .
3266                      "<td class=\"link\">" .
3267                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3268                      " | " .
3269                      $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3270                print "</td>\n" .
3271                      "</tr>\n";
3272        }
3273        if (defined $extra) {
3274                print "<tr>\n" .
3275                      "<td colspan=\"3\">$extra</td>\n" .
3276                      "</tr>\n";
3277        }
3278        print "</table>\n";
3279}
3280
3281## ======================================================================
3282## ======================================================================
3283## actions
3284
3285sub git_project_list {
3286        my $order = $cgi->param('o');
3287        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3288                die_error(undef, "Unknown order parameter");
3289        }
3290
3291        my @list = git_get_projects_list();
3292        if (!@list) {
3293                die_error(undef, "No projects found");
3294        }
3295
3296        git_header_html();
3297        if (-f $home_text) {
3298                print "<div class=\"index_include\">\n";
3299                open (my $fd, $home_text);
3300                print <$fd>;
3301                close $fd;
3302                print "</div>\n";
3303        }
3304        git_project_list_body(\@list, $order);
3305        git_footer_html();
3306}
3307
3308sub git_forks {
3309        my $order = $cgi->param('o');
3310        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3311                die_error(undef, "Unknown order parameter");
3312        }
3313
3314        my @list = git_get_projects_list($project);
3315        if (!@list) {
3316                die_error(undef, "No forks found");
3317        }
3318
3319        git_header_html();
3320        git_print_page_nav('','');
3321        git_print_header_div('summary', "$project forks");
3322        git_project_list_body(\@list, $order);
3323        git_footer_html();
3324}
3325
3326sub git_project_index {
3327        my @projects = git_get_projects_list($project);
3328
3329        print $cgi->header(
3330                -type => 'text/plain',
3331                -charset => 'utf-8',
3332                -content_disposition => 'inline; filename="index.aux"');
3333
3334        foreach my $pr (@projects) {
3335                if (!exists $pr->{'owner'}) {
3336                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}");
3337                }
3338
3339                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
3340                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
3341                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3342                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3343                $path  =~ s/ /\+/g;
3344                $owner =~ s/ /\+/g;
3345
3346                print "$path $owner\n";
3347        }
3348}
3349
3350sub git_summary {
3351        my $descr = git_get_project_description($project) || "none";
3352        my %co = parse_commit("HEAD");
3353        my %cd = %co ? parse_date($co{'committer_epoch'}, $co{'committer_tz'}) : ();
3354        my $head = $co{'id'};
3355
3356        my $owner = git_get_project_owner($project);
3357
3358        my $refs = git_get_references();
3359        # These get_*_list functions return one more to allow us to see if
3360        # there are more ...
3361        my @taglist  = git_get_tags_list(16);
3362        my @headlist = git_get_heads_list(16);
3363        my @forklist;
3364        my ($check_forks) = gitweb_check_feature('forks');
3365
3366        if ($check_forks) {
3367                @forklist = git_get_projects_list($project);
3368        }
3369
3370        git_header_html();
3371        git_print_page_nav('summary','', $head);
3372
3373        print "<div class=\"title\">&nbsp;</div>\n";
3374        print "<table cellspacing=\"0\">\n" .
3375              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
3376              "<tr><td>owner</td><td>$owner</td></tr>\n";
3377        if (defined $cd{'rfc2822'}) {
3378                print "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
3379        }
3380
3381        # use per project git URL list in $projectroot/$project/cloneurl
3382        # or make project git URL from git base URL and project name
3383        my $url_tag = "URL";
3384        my @url_list = git_get_project_url_list($project);
3385        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
3386        foreach my $git_url (@url_list) {
3387                next unless $git_url;
3388                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
3389                $url_tag = "";
3390        }
3391        print "</table>\n";
3392
3393        if (-s "$projectroot/$project/README.html") {
3394                if (open my $fd, "$projectroot/$project/README.html") {
3395                        print "<div class=\"title\">readme</div>\n";
3396                        print $_ while (<$fd>);
3397                        close $fd;
3398                }
3399        }
3400
3401        # we need to request one more than 16 (0..15) to check if
3402        # those 16 are all
3403        my @commitlist = $head ? parse_commits($head, 17) : ();
3404        if (@commitlist) {
3405                git_print_header_div('shortlog');
3406                git_shortlog_body(\@commitlist, 0, 15, $refs,
3407                                  $#commitlist <=  15 ? undef :
3408                                  $cgi->a({-href => href(action=>"shortlog")}, "..."));
3409        }
3410
3411        if (@taglist) {
3412                git_print_header_div('tags');
3413                git_tags_body(\@taglist, 0, 15,
3414                              $#taglist <=  15 ? undef :
3415                              $cgi->a({-href => href(action=>"tags")}, "..."));
3416        }
3417
3418        if (@headlist) {
3419                git_print_header_div('heads');
3420                git_heads_body(\@headlist, $head, 0, 15,
3421                               $#headlist <= 15 ? undef :
3422                               $cgi->a({-href => href(action=>"heads")}, "..."));
3423        }
3424
3425        if (@forklist) {
3426                git_print_header_div('forks');
3427                git_project_list_body(\@forklist, undef, 0, 15,
3428                                      $#forklist <= 15 ? undef :
3429                                      $cgi->a({-href => href(action=>"forks")}, "..."),
3430                                      'noheader');
3431        }
3432
3433        git_footer_html();
3434}
3435
3436sub git_tag {
3437        my $head = git_get_head_hash($project);
3438        git_header_html();
3439        git_print_page_nav('','', $head,undef,$head);
3440        my %tag = parse_tag($hash);
3441
3442        if (! %tag) {
3443                die_error(undef, "Unknown tag object");
3444        }
3445
3446        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
3447        print "<div class=\"title_text\">\n" .
3448              "<table cellspacing=\"0\">\n" .
3449              "<tr>\n" .
3450              "<td>object</td>\n" .
3451              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3452                               $tag{'object'}) . "</td>\n" .
3453              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3454                                              $tag{'type'}) . "</td>\n" .
3455              "</tr>\n";
3456        if (defined($tag{'author'})) {
3457                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
3458                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
3459                print "<tr><td></td><td>" . $ad{'rfc2822'} .
3460                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
3461                        "</td></tr>\n";
3462        }
3463        print "</table>\n\n" .
3464              "</div>\n";
3465        print "<div class=\"page_body\">";
3466        my $comment = $tag{'comment'};
3467        foreach my $line (@$comment) {
3468                chomp $line;
3469                print esc_html($line, -nbsp=>1) . "<br/>\n";
3470        }
3471        print "</div>\n";
3472        git_footer_html();
3473}
3474
3475sub git_blame2 {
3476        my $fd;
3477        my $ftype;
3478
3479        my ($have_blame) = gitweb_check_feature('blame');
3480        if (!$have_blame) {
3481                die_error('403 Permission denied', "Permission denied");
3482        }
3483        die_error('404 Not Found', "File name not defined") if (!$file_name);
3484        $hash_base ||= git_get_head_hash($project);
3485        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3486        my %co = parse_commit($hash_base)
3487                or die_error(undef, "Reading commit failed");
3488        if (!defined $hash) {
3489                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3490                        or die_error(undef, "Error looking up file");
3491        }
3492        $ftype = git_get_type($hash);
3493        if ($ftype !~ "blob") {
3494                die_error('400 Bad Request', "Object is not a blob");
3495        }
3496        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
3497              $file_name, $hash_base)
3498                or die_error(undef, "Open git-blame failed");
3499        git_header_html();
3500        my $formats_nav =
3501                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3502                        "blob") .
3503                " | " .
3504                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3505                        "history") .
3506                " | " .
3507                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3508                        "HEAD");
3509        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3510        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3511        git_print_page_path($file_name, $ftype, $hash_base);
3512        my @rev_color = (qw(light2 dark2));
3513        my $num_colors = scalar(@rev_color);
3514        my $current_color = 0;
3515        my $last_rev;
3516        print <<HTML;
3517<div class="page_body">
3518<table class="blame">
3519<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
3520HTML
3521        my %metainfo = ();
3522        while (1) {
3523                $_ = <$fd>;
3524                last unless defined $_;
3525                my ($full_rev, $orig_lineno, $lineno, $group_size) =
3526                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
3527                if (!exists $metainfo{$full_rev}) {
3528                        $metainfo{$full_rev} = {};
3529                }
3530                my $meta = $metainfo{$full_rev};
3531                while (<$fd>) {
3532                        last if (s/^\t//);
3533                        if (/^(\S+) (.*)$/) {
3534                                $meta->{$1} = $2;
3535                        }
3536                }
3537                my $data = $_;
3538                chomp $data;
3539                my $rev = substr($full_rev, 0, 8);
3540                my $author = $meta->{'author'};
3541                my %date = parse_date($meta->{'author-time'},
3542                                      $meta->{'author-tz'});
3543                my $date = $date{'iso-tz'};
3544                if ($group_size) {
3545                        $current_color = ++$current_color % $num_colors;
3546                }
3547                print "<tr class=\"$rev_color[$current_color]\">\n";
3548                if ($group_size) {
3549                        print "<td class=\"sha1\"";
3550                        print " title=\"". esc_html($author) . ", $date\"";
3551                        print " rowspan=\"$group_size\"" if ($group_size > 1);
3552                        print ">";
3553                        print $cgi->a({-href => href(action=>"commit",
3554                                                     hash=>$full_rev,
3555                                                     file_name=>$file_name)},
3556                                      esc_html($rev));
3557                        print "</td>\n";
3558                }
3559                open (my $dd, "-|", git_cmd(), "rev-parse", "$full_rev^")
3560                        or die_error(undef, "Open git-rev-parse failed");
3561                my $parent_commit = <$dd>;
3562                close $dd;
3563                chomp($parent_commit);
3564                my $blamed = href(action => 'blame',
3565                                  file_name => $meta->{'filename'},
3566                                  hash_base => $parent_commit);
3567                print "<td class=\"linenr\">";
3568                print $cgi->a({ -href => "$blamed#l$orig_lineno",
3569                                -id => "l$lineno",
3570                                -class => "linenr" },
3571                              esc_html($lineno));
3572                print "</td>";
3573                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
3574                print "</tr>\n";
3575        }
3576        print "</table>\n";
3577        print "</div>";
3578        close $fd
3579                or print "Reading blob failed\n";
3580        git_footer_html();
3581}
3582
3583sub git_blame {
3584        my $fd;
3585
3586        my ($have_blame) = gitweb_check_feature('blame');
3587        if (!$have_blame) {
3588                die_error('403 Permission denied', "Permission denied");
3589        }
3590        die_error('404 Not Found', "File name not defined") if (!$file_name);
3591        $hash_base ||= git_get_head_hash($project);
3592        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3593        my %co = parse_commit($hash_base)
3594                or die_error(undef, "Reading commit failed");
3595        if (!defined $hash) {
3596                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3597                        or die_error(undef, "Error lookup file");
3598        }
3599        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
3600                or die_error(undef, "Open git-annotate failed");
3601        git_header_html();
3602        my $formats_nav =
3603                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3604                        "blob") .
3605                " | " .
3606                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3607                        "history") .
3608                " | " .
3609                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3610                        "HEAD");
3611        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3612        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3613        git_print_page_path($file_name, 'blob', $hash_base);
3614        print "<div class=\"page_body\">\n";
3615        print <<HTML;
3616<table class="blame">
3617  <tr>
3618    <th>Commit</th>
3619    <th>Age</th>
3620    <th>Author</th>
3621    <th>Line</th>
3622    <th>Data</th>
3623  </tr>
3624HTML
3625        my @line_class = (qw(light dark));
3626        my $line_class_len = scalar (@line_class);
3627        my $line_class_num = $#line_class;
3628        while (my $line = <$fd>) {
3629                my $long_rev;
3630                my $short_rev;
3631                my $author;
3632                my $time;
3633                my $lineno;
3634                my $data;
3635                my $age;
3636                my $age_str;
3637                my $age_class;
3638
3639                chomp $line;
3640                $line_class_num = ($line_class_num + 1) % $line_class_len;
3641
3642                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
3643                        $long_rev = $1;
3644                        $author   = $2;
3645                        $time     = $3;
3646                        $lineno   = $4;
3647                        $data     = $5;
3648                } else {
3649                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
3650                        next;
3651                }
3652                $short_rev  = substr ($long_rev, 0, 8);
3653                $age        = time () - $time;
3654                $age_str    = age_string ($age);
3655                $age_str    =~ s/ /&nbsp;/g;
3656                $age_class  = age_class($age);
3657                $author     = esc_html ($author);
3658                $author     =~ s/ /&nbsp;/g;
3659
3660                $data = untabify($data);
3661                $data = esc_html ($data);
3662
3663                print <<HTML;
3664  <tr class="$line_class[$line_class_num]">
3665    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
3666    <td class="$age_class">$age_str</td>
3667    <td>$author</td>
3668    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
3669    <td class="pre">$data</td>
3670  </tr>
3671HTML
3672        } # while (my $line = <$fd>)
3673        print "</table>\n\n";
3674        close $fd
3675                or print "Reading blob failed.\n";
3676        print "</div>";
3677        git_footer_html();
3678}
3679
3680sub git_tags {
3681        my $head = git_get_head_hash($project);
3682        git_header_html();
3683        git_print_page_nav('','', $head,undef,$head);
3684        git_print_header_div('summary', $project);
3685
3686        my @tagslist = git_get_tags_list();
3687        if (@tagslist) {
3688                git_tags_body(\@tagslist);
3689        }
3690        git_footer_html();
3691}
3692
3693sub git_heads {
3694        my $head = git_get_head_hash($project);
3695        git_header_html();
3696        git_print_page_nav('','', $head,undef,$head);
3697        git_print_header_div('summary', $project);
3698
3699        my @headslist = git_get_heads_list();
3700        if (@headslist) {
3701                git_heads_body(\@headslist, $head);
3702        }
3703        git_footer_html();
3704}
3705
3706sub git_blob_plain {
3707        my $expires;
3708
3709        if (!defined $hash) {
3710                if (defined $file_name) {
3711                        my $base = $hash_base || git_get_head_hash($project);
3712                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3713                                or die_error(undef, "Error lookup file");
3714                } else {
3715                        die_error(undef, "No file name defined");
3716                }
3717        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3718                # blobs defined by non-textual hash id's can be cached
3719                $expires = "+1d";
3720        }
3721
3722        my $type = shift;
3723        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3724                or die_error(undef, "Couldn't cat $file_name, $hash");
3725
3726        $type ||= blob_mimetype($fd, $file_name);
3727
3728        # save as filename, even when no $file_name is given
3729        my $save_as = "$hash";
3730        if (defined $file_name) {
3731                $save_as = $file_name;
3732        } elsif ($type =~ m/^text\//) {
3733                $save_as .= '.txt';
3734        }
3735
3736        print $cgi->header(
3737                -type => "$type",
3738                -expires=>$expires,
3739                -content_disposition => 'inline; filename="' . "$save_as" . '"');
3740        undef $/;
3741        binmode STDOUT, ':raw';
3742        print <$fd>;
3743        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3744        $/ = "\n";
3745        close $fd;
3746}
3747
3748sub git_blob {
3749        my $expires;
3750
3751        if (!defined $hash) {
3752                if (defined $file_name) {
3753                        my $base = $hash_base || git_get_head_hash($project);
3754                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3755                                or die_error(undef, "Error lookup file");
3756                } else {
3757                        die_error(undef, "No file name defined");
3758                }
3759        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3760                # blobs defined by non-textual hash id's can be cached
3761                $expires = "+1d";
3762        }
3763
3764        my ($have_blame) = gitweb_check_feature('blame');
3765        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3766                or die_error(undef, "Couldn't cat $file_name, $hash");
3767        my $mimetype = blob_mimetype($fd, $file_name);
3768        if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)!) {
3769                close $fd;
3770                return git_blob_plain($mimetype);
3771        }
3772        # we can have blame only for text/* mimetype
3773        $have_blame &&= ($mimetype =~ m!^text/!);
3774
3775        git_header_html(undef, $expires);
3776        my $formats_nav = '';
3777        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3778                if (defined $file_name) {
3779                        if ($have_blame) {
3780                                $formats_nav .=
3781                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3782                                                               hash=>$hash, file_name=>$file_name)},
3783                                                "blame") .
3784                                        " | ";
3785                        }
3786                        $formats_nav .=
3787                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3788                                                       hash=>$hash, file_name=>$file_name)},
3789                                        "history") .
3790                                " | " .
3791                                $cgi->a({-href => href(action=>"blob_plain",
3792                                                       hash=>$hash, file_name=>$file_name)},
3793                                        "raw") .
3794                                " | " .
3795                                $cgi->a({-href => href(action=>"blob",
3796                                                       hash_base=>"HEAD", file_name=>$file_name)},
3797                                        "HEAD");
3798                } else {
3799                        $formats_nav .=
3800                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3801                }
3802                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3803                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3804        } else {
3805                print "<div class=\"page_nav\">\n" .
3806                      "<br/><br/></div>\n" .
3807                      "<div class=\"title\">$hash</div>\n";
3808        }
3809        git_print_page_path($file_name, "blob", $hash_base);
3810        print "<div class=\"page_body\">\n";
3811        if ($mimetype =~ m!^text/!) {
3812                my $nr;
3813                while (my $line = <$fd>) {
3814                        chomp $line;
3815                        $nr++;
3816                        $line = untabify($line);
3817                        printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3818                               $nr, $nr, $nr, esc_html($line, -nbsp=>1);
3819                }
3820        } elsif ($mimetype =~ m!^image/!) {
3821                print qq!<img type="$mimetype"!;
3822                if ($file_name) {
3823                        print qq! alt="$file_name" title="$file_name"!;
3824                }
3825                print qq! src="! .
3826                      href(action=>"blob_plain", hash=>$hash,
3827                           hash_base=>$hash_base, file_name=>$file_name) .
3828                      qq!" />\n!;
3829        }
3830        close $fd
3831                or print "Reading blob failed.\n";
3832        print "</div>";
3833        git_footer_html();
3834}
3835
3836sub git_tree {
3837        my $have_snapshot = gitweb_have_snapshot();
3838
3839        if (!defined $hash_base) {
3840                $hash_base = "HEAD";
3841        }
3842        if (!defined $hash) {
3843                if (defined $file_name) {
3844                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3845                } else {
3846                        $hash = $hash_base;
3847                }
3848        }
3849        $/ = "\0";
3850        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3851                or die_error(undef, "Open git-ls-tree failed");
3852        my @entries = map { chomp; $_ } <$fd>;
3853        close $fd or die_error(undef, "Reading tree failed");
3854        $/ = "\n";
3855
3856        my $refs = git_get_references();
3857        my $ref = format_ref_marker($refs, $hash_base);
3858        git_header_html();
3859        my $basedir = '';
3860        my ($have_blame) = gitweb_check_feature('blame');
3861        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3862                my @views_nav = ();
3863                if (defined $file_name) {
3864                        push @views_nav,
3865                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3866                                                       hash=>$hash, file_name=>$file_name)},
3867                                        "history"),
3868                                $cgi->a({-href => href(action=>"tree",
3869                                                       hash_base=>"HEAD", file_name=>$file_name)},
3870                                        "HEAD"),
3871                }
3872                if ($have_snapshot) {
3873                        # FIXME: Should be available when we have no hash base as well.
3874                        push @views_nav,
3875                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3876                                        "snapshot");
3877                }
3878                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3879                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3880        } else {
3881                undef $hash_base;
3882                print "<div class=\"page_nav\">\n";
3883                print "<br/><br/></div>\n";
3884                print "<div class=\"title\">$hash</div>\n";
3885        }
3886        if (defined $file_name) {
3887                $basedir = $file_name;
3888                if ($basedir ne '' && substr($basedir, -1) ne '/') {
3889                        $basedir .= '/';
3890                }
3891        }
3892        git_print_page_path($file_name, 'tree', $hash_base);
3893        print "<div class=\"page_body\">\n";
3894        print "<table cellspacing=\"0\">\n";
3895        my $alternate = 1;
3896        # '..' (top directory) link if possible
3897        if (defined $hash_base &&
3898            defined $file_name && $file_name =~ m![^/]+$!) {
3899                if ($alternate) {
3900                        print "<tr class=\"dark\">\n";
3901                } else {
3902                        print "<tr class=\"light\">\n";
3903                }
3904                $alternate ^= 1;
3905
3906                my $up = $file_name;
3907                $up =~ s!/?[^/]+$!!;
3908                undef $up unless $up;
3909                # based on git_print_tree_entry
3910                print '<td class="mode">' . mode_str('040000') . "</td>\n";
3911                print '<td class="list">';
3912                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3913                                             file_name=>$up)},
3914                              "..");
3915                print "</td>\n";
3916                print "<td class=\"link\"></td>\n";
3917
3918                print "</tr>\n";
3919        }
3920        foreach my $line (@entries) {
3921                my %t = parse_ls_tree_line($line, -z => 1);
3922
3923                if ($alternate) {
3924                        print "<tr class=\"dark\">\n";
3925                } else {
3926                        print "<tr class=\"light\">\n";
3927                }
3928                $alternate ^= 1;
3929
3930                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3931
3932                print "</tr>\n";
3933        }
3934        print "</table>\n" .
3935              "</div>";
3936        git_footer_html();
3937}
3938
3939sub git_snapshot {
3940        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3941        my $have_snapshot = (defined $ctype && defined $suffix);
3942        if (!$have_snapshot) {
3943                die_error('403 Permission denied', "Permission denied");
3944        }
3945
3946        if (!defined $hash) {
3947                $hash = git_get_head_hash($project);
3948        }
3949
3950        my $filename = decode_utf8(basename($project)) . "-$hash.tar.$suffix";
3951
3952        print $cgi->header(
3953                -type => "application/$ctype",
3954                -content_disposition => 'inline; filename="' . "$filename" . '"',
3955                -status => '200 OK');
3956
3957        my $git = git_cmd_str();
3958        my $name = $project;
3959        $name =~ s/\047/\047\\\047\047/g;
3960        open my $fd, "-|",
3961                "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3962                or die_error(undef, "Execute git-tar-tree failed");
3963        binmode STDOUT, ':raw';
3964        print <$fd>;
3965        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3966        close $fd;
3967
3968}
3969
3970sub git_log {
3971        my $head = git_get_head_hash($project);
3972        if (!defined $hash) {
3973                $hash = $head;
3974        }
3975        if (!defined $page) {
3976                $page = 0;
3977        }
3978        my $refs = git_get_references();
3979
3980        my @commitlist = parse_commits($hash, 101, (100 * $page));
3981
3982        my $paging_nav = format_paging_nav('log', $hash, $head, $page, (100 * ($page+1)));
3983
3984        git_header_html();
3985        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3986
3987        if (!@commitlist) {
3988                my %co = parse_commit($hash);
3989
3990                git_print_header_div('summary', $project);
3991                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3992        }
3993        my $to = ($#commitlist >= 99) ? (99) : ($#commitlist);
3994        for (my $i = 0; $i <= $to; $i++) {
3995                my %co = %{$commitlist[$i]};
3996                next if !%co;
3997                my $commit = $co{'id'};
3998                my $ref = format_ref_marker($refs, $commit);
3999                my %ad = parse_date($co{'author_epoch'});
4000                git_print_header_div('commit',
4001                               "<span class=\"age\">$co{'age_string'}</span>" .
4002                               esc_html($co{'title'}) . $ref,
4003                               $commit);
4004                print "<div class=\"title_text\">\n" .
4005                      "<div class=\"log_link\">\n" .
4006                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
4007                      " | " .
4008                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
4009                      " | " .
4010                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
4011                      "<br/>\n" .
4012                      "</div>\n" .
4013                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
4014                      "</div>\n";
4015
4016                print "<div class=\"log_body\">\n";
4017                git_print_log($co{'comment'}, -final_empty_line=> 1);
4018                print "</div>\n";
4019        }
4020        if ($#commitlist >= 100) {
4021                print "<div class=\"page_nav\">\n";
4022                print $cgi->a({-href => href(action=>"log", hash=>$hash, page=>$page+1),
4023                               -accesskey => "n", -title => "Alt-n"}, "next");
4024                print "</div>\n";
4025        }
4026        git_footer_html();
4027}
4028
4029sub git_commit {
4030        $hash ||= $hash_base || "HEAD";
4031        my %co = parse_commit($hash);
4032        if (!%co) {
4033                die_error(undef, "Unknown commit object");
4034        }
4035        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4036        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
4037
4038        my $parent  = $co{'parent'};
4039        my $parents = $co{'parents'}; # listref
4040
4041        # we need to prepare $formats_nav before any parameter munging
4042        my $formats_nav;
4043        if (!defined $parent) {
4044                # --root commitdiff
4045                $formats_nav .= '(initial)';
4046        } elsif (@$parents == 1) {
4047                # single parent commit
4048                $formats_nav .=
4049                        '(parent: ' .
4050                        $cgi->a({-href => href(action=>"commit",
4051                                               hash=>$parent)},
4052                                esc_html(substr($parent, 0, 7))) .
4053                        ')';
4054        } else {
4055                # merge commit
4056                $formats_nav .=
4057                        '(merge: ' .
4058                        join(' ', map {
4059                                $cgi->a({-href => href(action=>"commit",
4060                                                       hash=>$_)},
4061                                        esc_html(substr($_, 0, 7)));
4062                        } @$parents ) .
4063                        ')';
4064        }
4065
4066        if (!defined $parent) {
4067                $parent = "--root";
4068        }
4069        my @difftree;
4070        open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
4071                @diff_opts,
4072                (@$parents <= 1 ? $parent : '-c'),
4073                $hash, "--"
4074                or die_error(undef, "Open git-diff-tree failed");
4075        @difftree = map { chomp; $_ } <$fd>;
4076        close $fd or die_error(undef, "Reading git-diff-tree failed");
4077
4078        # non-textual hash id's can be cached
4079        my $expires;
4080        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4081                $expires = "+1d";
4082        }
4083        my $refs = git_get_references();
4084        my $ref = format_ref_marker($refs, $co{'id'});
4085
4086        my $have_snapshot = gitweb_have_snapshot();
4087
4088        git_header_html(undef, $expires);
4089        git_print_page_nav('commit', '',
4090                           $hash, $co{'tree'}, $hash,
4091                           $formats_nav);
4092
4093        if (defined $co{'parent'}) {
4094                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
4095        } else {
4096                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
4097        }
4098        print "<div class=\"title_text\">\n" .
4099              "<table cellspacing=\"0\">\n";
4100        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
4101              "<tr>" .
4102              "<td></td><td> $ad{'rfc2822'}";
4103        if ($ad{'hour_local'} < 6) {
4104                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
4105                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4106        } else {
4107                printf(" (%02d:%02d %s)",
4108                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4109        }
4110        print "</td>" .
4111              "</tr>\n";
4112        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
4113        print "<tr><td></td><td> $cd{'rfc2822'}" .
4114              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
4115              "</td></tr>\n";
4116        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
4117        print "<tr>" .
4118              "<td>tree</td>" .
4119              "<td class=\"sha1\">" .
4120              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
4121                       class => "list"}, $co{'tree'}) .
4122              "</td>" .
4123              "<td class=\"link\">" .
4124              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
4125                      "tree");
4126        if ($have_snapshot) {
4127                print " | " .
4128                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
4129        }
4130        print "</td>" .
4131              "</tr>\n";
4132
4133        foreach my $par (@$parents) {
4134                print "<tr>" .
4135                      "<td>parent</td>" .
4136                      "<td class=\"sha1\">" .
4137                      $cgi->a({-href => href(action=>"commit", hash=>$par),
4138                               class => "list"}, $par) .
4139                      "</td>" .
4140                      "<td class=\"link\">" .
4141                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
4142                      " | " .
4143                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
4144                      "</td>" .
4145                      "</tr>\n";
4146        }
4147        print "</table>".
4148              "</div>\n";
4149
4150        print "<div class=\"page_body\">\n";
4151        git_print_log($co{'comment'});
4152        print "</div>\n";
4153
4154        git_difftree_body(\@difftree, $hash, @$parents);
4155
4156        git_footer_html();
4157}
4158
4159sub git_object {
4160        # object is defined by:
4161        # - hash or hash_base alone
4162        # - hash_base and file_name
4163        my $type;
4164
4165        # - hash or hash_base alone
4166        if ($hash || ($hash_base && !defined $file_name)) {
4167                my $object_id = $hash || $hash_base;
4168
4169                my $git_command = git_cmd_str();
4170                open my $fd, "-|", "$git_command cat-file -t $object_id 2>/dev/null"
4171                        or die_error('404 Not Found', "Object does not exist");
4172                $type = <$fd>;
4173                chomp $type;
4174                close $fd
4175                        or die_error('404 Not Found', "Object does not exist");
4176
4177        # - hash_base and file_name
4178        } elsif ($hash_base && defined $file_name) {
4179                $file_name =~ s,/+$,,;
4180
4181                system(git_cmd(), "cat-file", '-e', $hash_base) == 0
4182                        or die_error('404 Not Found', "Base object does not exist");
4183
4184                # here errors should not hapen
4185                open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
4186                        or die_error(undef, "Open git-ls-tree failed");
4187                my $line = <$fd>;
4188                close $fd;
4189
4190                #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
4191                unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
4192                        die_error('404 Not Found', "File or directory for given base does not exist");
4193                }
4194                $type = $2;
4195                $hash = $3;
4196        } else {
4197                die_error('404 Not Found', "Not enough information to find object");
4198        }
4199
4200        print $cgi->redirect(-uri => href(action=>$type, -full=>1,
4201                                          hash=>$hash, hash_base=>$hash_base,
4202                                          file_name=>$file_name),
4203                             -status => '302 Found');
4204}
4205
4206sub git_blobdiff {
4207        my $format = shift || 'html';
4208
4209        my $fd;
4210        my @difftree;
4211        my %diffinfo;
4212        my $expires;
4213
4214        # preparing $fd and %diffinfo for git_patchset_body
4215        # new style URI
4216        if (defined $hash_base && defined $hash_parent_base) {
4217                if (defined $file_name) {
4218                        # read raw output
4219                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4220                                $hash_parent_base, $hash_base,
4221                                "--", (defined $file_parent ? $file_parent : ()), $file_name
4222                                or die_error(undef, "Open git-diff-tree failed");
4223                        @difftree = map { chomp; $_ } <$fd>;
4224                        close $fd
4225                                or die_error(undef, "Reading git-diff-tree failed");
4226                        @difftree
4227                                or die_error('404 Not Found', "Blob diff not found");
4228
4229                } elsif (defined $hash &&
4230                         $hash =~ /[0-9a-fA-F]{40}/) {
4231                        # try to find filename from $hash
4232
4233                        # read filtered raw output
4234                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4235                                $hash_parent_base, $hash_base, "--"
4236                                or die_error(undef, "Open git-diff-tree failed");
4237                        @difftree =
4238                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
4239                                # $hash == to_id
4240                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
4241                                map { chomp; $_ } <$fd>;
4242                        close $fd
4243                                or die_error(undef, "Reading git-diff-tree failed");
4244                        @difftree
4245                                or die_error('404 Not Found', "Blob diff not found");
4246
4247                } else {
4248                        die_error('404 Not Found', "Missing one of the blob diff parameters");
4249                }
4250
4251                if (@difftree > 1) {
4252                        die_error('404 Not Found', "Ambiguous blob diff specification");
4253                }
4254
4255                %diffinfo = parse_difftree_raw_line($difftree[0]);
4256                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
4257                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
4258
4259                $hash_parent ||= $diffinfo{'from_id'};
4260                $hash        ||= $diffinfo{'to_id'};
4261
4262                # non-textual hash id's can be cached
4263                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
4264                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
4265                        $expires = '+1d';
4266                }
4267
4268                # open patch output
4269                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4270                        '-p', ($format eq 'html' ? "--full-index" : ()),
4271                        $hash_parent_base, $hash_base,
4272                        "--", (defined $file_parent ? $file_parent : ()), $file_name
4273                        or die_error(undef, "Open git-diff-tree failed");
4274        }
4275
4276        # old/legacy style URI
4277        if (!%diffinfo && # if new style URI failed
4278            defined $hash && defined $hash_parent) {
4279                # fake git-diff-tree raw output
4280                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
4281                $diffinfo{'from_id'} = $hash_parent;
4282                $diffinfo{'to_id'}   = $hash;
4283                if (defined $file_name) {
4284                        if (defined $file_parent) {
4285                                $diffinfo{'status'} = '2';
4286                                $diffinfo{'from_file'} = $file_parent;
4287                                $diffinfo{'to_file'}   = $file_name;
4288                        } else { # assume not renamed
4289                                $diffinfo{'status'} = '1';
4290                                $diffinfo{'from_file'} = $file_name;
4291                                $diffinfo{'to_file'}   = $file_name;
4292                        }
4293                } else { # no filename given
4294                        $diffinfo{'status'} = '2';
4295                        $diffinfo{'from_file'} = $hash_parent;
4296                        $diffinfo{'to_file'}   = $hash;
4297                }
4298
4299                # non-textual hash id's can be cached
4300                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
4301                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4302                        $expires = '+1d';
4303                }
4304
4305                # open patch output
4306                open $fd, "-|", git_cmd(), "diff", @diff_opts,
4307                        '-p', ($format eq 'html' ? "--full-index" : ()),
4308                        $hash_parent, $hash, "--"
4309                        or die_error(undef, "Open git-diff failed");
4310        } else  {
4311                die_error('404 Not Found', "Missing one of the blob diff parameters")
4312                        unless %diffinfo;
4313        }
4314
4315        # header
4316        if ($format eq 'html') {
4317                my $formats_nav =
4318                        $cgi->a({-href => href(action=>"blobdiff_plain",
4319                                               hash=>$hash, hash_parent=>$hash_parent,
4320                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
4321                                               file_name=>$file_name, file_parent=>$file_parent)},
4322                                "raw");
4323                git_header_html(undef, $expires);
4324                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4325                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4326                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4327                } else {
4328                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
4329                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
4330                }
4331                if (defined $file_name) {
4332                        git_print_page_path($file_name, "blob", $hash_base);
4333                } else {
4334                        print "<div class=\"page_path\"></div>\n";
4335                }
4336
4337        } elsif ($format eq 'plain') {
4338                print $cgi->header(
4339                        -type => 'text/plain',
4340                        -charset => 'utf-8',
4341                        -expires => $expires,
4342                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
4343
4344                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4345
4346        } else {
4347                die_error(undef, "Unknown blobdiff format");
4348        }
4349
4350        # patch
4351        if ($format eq 'html') {
4352                print "<div class=\"page_body\">\n";
4353
4354                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
4355                close $fd;
4356
4357                print "</div>\n"; # class="page_body"
4358                git_footer_html();
4359
4360        } else {
4361                while (my $line = <$fd>) {
4362                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
4363                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
4364
4365                        print $line;
4366
4367                        last if $line =~ m!^\+\+\+!;
4368                }
4369                local $/ = undef;
4370                print <$fd>;
4371                close $fd;
4372        }
4373}
4374
4375sub git_blobdiff_plain {
4376        git_blobdiff('plain');
4377}
4378
4379sub git_commitdiff {
4380        my $format = shift || 'html';
4381        $hash ||= $hash_base || "HEAD";
4382        my %co = parse_commit($hash);
4383        if (!%co) {
4384                die_error(undef, "Unknown commit object");
4385        }
4386
4387        # we need to prepare $formats_nav before any parameter munging
4388        my $formats_nav;
4389        if ($format eq 'html') {
4390                $formats_nav =
4391                        $cgi->a({-href => href(action=>"commitdiff_plain",
4392                                               hash=>$hash, hash_parent=>$hash_parent)},
4393                                "raw");
4394
4395                if (defined $hash_parent) {
4396                        # commitdiff with two commits given
4397                        my $hash_parent_short = $hash_parent;
4398                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4399                                $hash_parent_short = substr($hash_parent, 0, 7);
4400                        }
4401                        $formats_nav .=
4402                                ' (from: ' .
4403                                $cgi->a({-href => href(action=>"commitdiff",
4404                                                       hash=>$hash_parent)},
4405                                        esc_html($hash_parent_short)) .
4406                                ')';
4407                } elsif (!$co{'parent'}) {
4408                        # --root commitdiff
4409                        $formats_nav .= ' (initial)';
4410                } elsif (scalar @{$co{'parents'}} == 1) {
4411                        # single parent commit
4412                        $formats_nav .=
4413                                ' (parent: ' .
4414                                $cgi->a({-href => href(action=>"commitdiff",
4415                                                       hash=>$co{'parent'})},
4416                                        esc_html(substr($co{'parent'}, 0, 7))) .
4417                                ')';
4418                } else {
4419                        # merge commit
4420                        $formats_nav .=
4421                                ' (merge: ' .
4422                                join(' ', map {
4423                                        $cgi->a({-href => href(action=>"commitdiff",
4424                                                               hash=>$_)},
4425                                                esc_html(substr($_, 0, 7)));
4426                                } @{$co{'parents'}} ) .
4427                                ')';
4428                }
4429        }
4430
4431        my $hash_parent_param = $hash_parent;
4432        if (!defined $hash_parent) {
4433                $hash_parent_param =
4434                        @{$co{'parents'}} > 1 ? '-c' : $co{'parent'} || '--root';
4435        }
4436
4437        # read commitdiff
4438        my $fd;
4439        my @difftree;
4440        if ($format eq 'html') {
4441                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4442                        "--no-commit-id", "--patch-with-raw", "--full-index",
4443                        $hash_parent_param, $hash, "--"
4444                        or die_error(undef, "Open git-diff-tree failed");
4445
4446                while (my $line = <$fd>) {
4447                        chomp $line;
4448                        # empty line ends raw part of diff-tree output
4449                        last unless $line;
4450                        push @difftree, scalar parse_difftree_raw_line($line);
4451                }
4452
4453        } elsif ($format eq 'plain') {
4454                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4455                        '-p', $hash_parent_param, $hash, "--"
4456                        or die_error(undef, "Open git-diff-tree failed");
4457
4458        } else {
4459                die_error(undef, "Unknown commitdiff format");
4460        }
4461
4462        # non-textual hash id's can be cached
4463        my $expires;
4464        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4465                $expires = "+1d";
4466        }
4467
4468        # write commit message
4469        if ($format eq 'html') {
4470                my $refs = git_get_references();
4471                my $ref = format_ref_marker($refs, $co{'id'});
4472
4473                git_header_html(undef, $expires);
4474                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
4475                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
4476                git_print_authorship(\%co);
4477                print "<div class=\"page_body\">\n";
4478                if (@{$co{'comment'}} > 1) {
4479                        print "<div class=\"log\">\n";
4480                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
4481                        print "</div>\n"; # class="log"
4482                }
4483
4484        } elsif ($format eq 'plain') {
4485                my $refs = git_get_references("tags");
4486                my $tagname = git_get_rev_name_tags($hash);
4487                my $filename = basename($project) . "-$hash.patch";
4488
4489                print $cgi->header(
4490                        -type => 'text/plain',
4491                        -charset => 'utf-8',
4492                        -expires => $expires,
4493                        -content_disposition => 'inline; filename="' . "$filename" . '"');
4494                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4495                print <<TEXT;
4496From: $co{'author'}
4497Date: $ad{'rfc2822'} ($ad{'tz_local'})
4498Subject: $co{'title'}
4499TEXT
4500                print "X-Git-Tag: $tagname\n" if $tagname;
4501                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4502
4503                foreach my $line (@{$co{'comment'}}) {
4504                        print "$line\n";
4505                }
4506                print "---\n\n";
4507        }
4508
4509        # write patch
4510        if ($format eq 'html') {
4511                git_difftree_body(\@difftree, $hash, $hash_parent || @{$co{'parents'}});
4512                print "<br/>\n";
4513
4514                git_patchset_body($fd, \@difftree, $hash, $hash_parent || @{$co{'parents'}});
4515                close $fd;
4516                print "</div>\n"; # class="page_body"
4517                git_footer_html();
4518
4519        } elsif ($format eq 'plain') {
4520                local $/ = undef;
4521                print <$fd>;
4522                close $fd
4523                        or print "Reading git-diff-tree failed\n";
4524        }
4525}
4526
4527sub git_commitdiff_plain {
4528        git_commitdiff('plain');
4529}
4530
4531sub git_history {
4532        if (!defined $hash_base) {
4533                $hash_base = git_get_head_hash($project);
4534        }
4535        if (!defined $page) {
4536                $page = 0;
4537        }
4538        my $ftype;
4539        my %co = parse_commit($hash_base);
4540        if (!%co) {
4541                die_error(undef, "Unknown commit object");
4542        }
4543
4544        my $refs = git_get_references();
4545        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4546
4547        if (!defined $hash && defined $file_name) {
4548                $hash = git_get_hash_by_path($hash_base, $file_name);
4549        }
4550        if (defined $hash) {
4551                $ftype = git_get_type($hash);
4552        }
4553
4554        my @commitlist = parse_commits($hash_base, 101, (100 * $page), "--full-history", $file_name);
4555
4556        my $paging_nav = '';
4557        if ($page > 0) {
4558                $paging_nav .=
4559                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4560                                               file_name=>$file_name)},
4561                                "first");
4562                $paging_nav .= " &sdot; " .
4563                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4564                                               file_name=>$file_name, page=>$page-1),
4565                                 -accesskey => "p", -title => "Alt-p"}, "prev");
4566        } else {
4567                $paging_nav .= "first";
4568                $paging_nav .= " &sdot; prev";
4569        }
4570        if ($#commitlist >= 100) {
4571                $paging_nav .= " &sdot; " .
4572                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4573                                               file_name=>$file_name, page=>$page+1),
4574                                 -accesskey => "n", -title => "Alt-n"}, "next");
4575        } else {
4576                $paging_nav .= " &sdot; next";
4577        }
4578        my $next_link = '';
4579        if ($#commitlist >= 100) {
4580                $next_link =
4581                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4582                                               file_name=>$file_name, page=>$page+1),
4583                                 -accesskey => "n", -title => "Alt-n"}, "next");
4584        }
4585
4586        git_header_html();
4587        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
4588        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4589        git_print_page_path($file_name, $ftype, $hash_base);
4590
4591        git_history_body(\@commitlist, 0, 99,
4592                         $refs, $hash_base, $ftype, $next_link);
4593
4594        git_footer_html();
4595}
4596
4597sub git_search {
4598        my ($have_search) = gitweb_check_feature('search');
4599        if (!$have_search) {
4600                die_error('403 Permission denied', "Permission denied");
4601        }
4602        if (!defined $searchtext) {
4603                die_error(undef, "Text field empty");
4604        }
4605        if (!defined $hash) {
4606                $hash = git_get_head_hash($project);
4607        }
4608        my %co = parse_commit($hash);
4609        if (!%co) {
4610                die_error(undef, "Unknown commit object");
4611        }
4612        if (!defined $page) {
4613                $page = 0;
4614        }
4615
4616        $searchtype ||= 'commit';
4617        if ($searchtype eq 'pickaxe') {
4618                # pickaxe may take all resources of your box and run for several minutes
4619                # with every query - so decide by yourself how public you make this feature
4620                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4621                if (!$have_pickaxe) {
4622                        die_error('403 Permission denied', "Permission denied");
4623                }
4624        }
4625
4626        git_header_html();
4627
4628        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
4629                my $greptype;
4630                if ($searchtype eq 'commit') {
4631                        $greptype = "--grep=";
4632                } elsif ($searchtype eq 'author') {
4633                        $greptype = "--author=";
4634                } elsif ($searchtype eq 'committer') {
4635                        $greptype = "--committer=";
4636                }
4637                $greptype .= $search_regexp;
4638                my @commitlist = parse_commits($hash, 101, (100 * $page), $greptype);
4639
4640                my $paging_nav = '';
4641                if ($page > 0) {
4642                        $paging_nav .=
4643                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4644                                                       searchtext=>$searchtext, searchtype=>$searchtype)},
4645                                        "first");
4646                        $paging_nav .= " &sdot; " .
4647                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4648                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4649                                                       page=>$page-1),
4650                                         -accesskey => "p", -title => "Alt-p"}, "prev");
4651                } else {
4652                        $paging_nav .= "first";
4653                        $paging_nav .= " &sdot; prev";
4654                }
4655                if ($#commitlist >= 100) {
4656                        $paging_nav .= " &sdot; " .
4657                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4658                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4659                                                       page=>$page+1),
4660                                         -accesskey => "n", -title => "Alt-n"}, "next");
4661                } else {
4662                        $paging_nav .= " &sdot; next";
4663                }
4664                my $next_link = '';
4665                if ($#commitlist >= 100) {
4666                        $next_link =
4667                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4668                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4669                                                       page=>$page+1),
4670                                         -accesskey => "n", -title => "Alt-n"}, "next");
4671                }
4672
4673                git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
4674                git_print_header_div('commit', esc_html($co{'title'}), $hash);
4675                git_search_grep_body(\@commitlist, 0, 99, $next_link);
4676        }
4677
4678        if ($searchtype eq 'pickaxe') {
4679                git_print_page_nav('','', $hash,$co{'tree'},$hash);
4680                git_print_header_div('commit', esc_html($co{'title'}), $hash);
4681
4682                print "<table cellspacing=\"0\">\n";
4683                my $alternate = 1;
4684                $/ = "\n";
4685                my $git_command = git_cmd_str();
4686                open my $fd, "-|", "$git_command rev-list $hash | " .
4687                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
4688                undef %co;
4689                my @files;
4690                while (my $line = <$fd>) {
4691                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
4692                                my %set;
4693                                $set{'file'} = $6;
4694                                $set{'from_id'} = $3;
4695                                $set{'to_id'} = $4;
4696                                $set{'id'} = $set{'to_id'};
4697                                if ($set{'id'} =~ m/0{40}/) {
4698                                        $set{'id'} = $set{'from_id'};
4699                                }
4700                                if ($set{'id'} =~ m/0{40}/) {
4701                                        next;
4702                                }
4703                                push @files, \%set;
4704                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
4705                                if (%co) {
4706                                        if ($alternate) {
4707                                                print "<tr class=\"dark\">\n";
4708                                        } else {
4709                                                print "<tr class=\"light\">\n";
4710                                        }
4711                                        $alternate ^= 1;
4712                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4713                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4714                                              "<td>" .
4715                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
4716                                                      -class => "list subject"},
4717                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4718                                        while (my $setref = shift @files) {
4719                                                my %set = %$setref;
4720                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
4721                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
4722                                                              -class => "list"},
4723                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
4724                                                      "<br/>\n";
4725                                        }
4726                                        print "</td>\n" .
4727                                              "<td class=\"link\">" .
4728                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4729                                              " | " .
4730                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4731                                        print "</td>\n" .
4732                                              "</tr>\n";
4733                                }
4734                                %co = parse_commit($1);
4735                        }
4736                }
4737                close $fd;
4738
4739                print "</table>\n";
4740        }
4741        git_footer_html();
4742}
4743
4744sub git_search_help {
4745        git_header_html();
4746        git_print_page_nav('','', $hash,$hash,$hash);
4747        print <<EOT;
4748<dl>
4749<dt><b>commit</b></dt>
4750<dd>The commit messages and authorship information will be scanned for the given string.</dd>
4751<dt><b>author</b></dt>
4752<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
4753<dt><b>committer</b></dt>
4754<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
4755EOT
4756        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4757        if ($have_pickaxe) {
4758                print <<EOT;
4759<dt><b>pickaxe</b></dt>
4760<dd>All commits that caused the string to appear or disappear from any file (changes that
4761added, removed or "modified" the string) will be listed. This search can take a while and
4762takes a lot of strain on the server, so please use it wisely.</dd>
4763EOT
4764        }
4765        print "</dl>\n";
4766        git_footer_html();
4767}
4768
4769sub git_shortlog {
4770        my $head = git_get_head_hash($project);
4771        if (!defined $hash) {
4772                $hash = $head;
4773        }
4774        if (!defined $page) {
4775                $page = 0;
4776        }
4777        my $refs = git_get_references();
4778
4779        my @commitlist = parse_commits($hash, 101, (100 * $page));
4780
4781        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, (100 * ($page+1)));
4782        my $next_link = '';
4783        if ($#commitlist >= 100) {
4784                $next_link =
4785                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
4786                                 -accesskey => "n", -title => "Alt-n"}, "next");
4787        }
4788
4789        git_header_html();
4790        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
4791        git_print_header_div('summary', $project);
4792
4793        git_shortlog_body(\@commitlist, 0, 99, $refs, $next_link);
4794
4795        git_footer_html();
4796}
4797
4798## ......................................................................
4799## feeds (RSS, Atom; OPML)
4800
4801sub git_feed {
4802        my $format = shift || 'atom';
4803        my ($have_blame) = gitweb_check_feature('blame');
4804
4805        # Atom: http://www.atomenabled.org/developers/syndication/
4806        # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
4807        if ($format ne 'rss' && $format ne 'atom') {
4808                die_error(undef, "Unknown web feed format");
4809        }
4810
4811        # log/feed of current (HEAD) branch, log of given branch, history of file/directory
4812        my $head = $hash || 'HEAD';
4813        my @commitlist = parse_commits($head, 150);
4814
4815        my %latest_commit;
4816        my %latest_date;
4817        my $content_type = "application/$format+xml";
4818        if (defined $cgi->http('HTTP_ACCEPT') &&
4819                 $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
4820                # browser (feed reader) prefers text/xml
4821                $content_type = 'text/xml';
4822        }
4823        if (defined($commitlist[0])) {
4824                %latest_commit = %{$commitlist[0]};
4825                %latest_date   = parse_date($latest_commit{'author_epoch'});
4826                print $cgi->header(
4827                        -type => $content_type,
4828                        -charset => 'utf-8',
4829                        -last_modified => $latest_date{'rfc2822'});
4830        } else {
4831                print $cgi->header(
4832                        -type => $content_type,
4833                        -charset => 'utf-8');
4834        }
4835
4836        # Optimization: skip generating the body if client asks only
4837        # for Last-Modified date.
4838        return if ($cgi->request_method() eq 'HEAD');
4839
4840        # header variables
4841        my $title = "$site_name - $project/$action";
4842        my $feed_type = 'log';
4843        if (defined $hash) {
4844                $title .= " - '$hash'";
4845                $feed_type = 'branch log';
4846                if (defined $file_name) {
4847                        $title .= " :: $file_name";
4848                        $feed_type = 'history';
4849                }
4850        } elsif (defined $file_name) {
4851                $title .= " - $file_name";
4852                $feed_type = 'history';
4853        }
4854        $title .= " $feed_type";
4855        my $descr = git_get_project_description($project);
4856        if (defined $descr) {
4857                $descr = esc_html($descr);
4858        } else {
4859                $descr = "$project " .
4860                         ($format eq 'rss' ? 'RSS' : 'Atom') .
4861                         " feed";
4862        }
4863        my $owner = git_get_project_owner($project);
4864        $owner = esc_html($owner);
4865
4866        #header
4867        my $alt_url;
4868        if (defined $file_name) {
4869                $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
4870        } elsif (defined $hash) {
4871                $alt_url = href(-full=>1, action=>"log", hash=>$hash);
4872        } else {
4873                $alt_url = href(-full=>1, action=>"summary");
4874        }
4875        print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
4876        if ($format eq 'rss') {
4877                print <<XML;
4878<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
4879<channel>
4880XML
4881                print "<title>$title</title>\n" .
4882                      "<link>$alt_url</link>\n" .
4883                      "<description>$descr</description>\n" .
4884                      "<language>en</language>\n";
4885        } elsif ($format eq 'atom') {
4886                print <<XML;
4887<feed xmlns="http://www.w3.org/2005/Atom">
4888XML
4889                print "<title>$title</title>\n" .
4890                      "<subtitle>$descr</subtitle>\n" .
4891                      '<link rel="alternate" type="text/html" href="' .
4892                      $alt_url . '" />' . "\n" .
4893                      '<link rel="self" type="' . $content_type . '" href="' .
4894                      $cgi->self_url() . '" />' . "\n" .
4895                      "<id>" . href(-full=>1) . "</id>\n" .
4896                      # use project owner for feed author
4897                      "<author><name>$owner</name></author>\n";
4898                if (defined $favicon) {
4899                        print "<icon>" . esc_url($favicon) . "</icon>\n";
4900                }
4901                if (defined $logo_url) {
4902                        # not twice as wide as tall: 72 x 27 pixels
4903                        print "<logo>" . esc_url($logo) . "</logo>\n";
4904                }
4905                if (! %latest_date) {
4906                        # dummy date to keep the feed valid until commits trickle in:
4907                        print "<updated>1970-01-01T00:00:00Z</updated>\n";
4908                } else {
4909                        print "<updated>$latest_date{'iso-8601'}</updated>\n";
4910                }
4911        }
4912
4913        # contents
4914        for (my $i = 0; $i <= $#commitlist; $i++) {
4915                my %co = %{$commitlist[$i]};
4916                my $commit = $co{'id'};
4917                # we read 150, we always show 30 and the ones more recent than 48 hours
4918                if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
4919                        last;
4920                }
4921                my %cd = parse_date($co{'author_epoch'});
4922
4923                # get list of changed files
4924                open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4925                        $co{'parent'}, $co{'id'}, "--", (defined $file_name ? $file_name : ())
4926                        or next;
4927                my @difftree = map { chomp; $_ } <$fd>;
4928                close $fd
4929                        or next;
4930
4931                # print element (entry, item)
4932                my $co_url = href(-full=>1, action=>"commit", hash=>$commit);
4933                if ($format eq 'rss') {
4934                        print "<item>\n" .
4935                              "<title>" . esc_html($co{'title'}) . "</title>\n" .
4936                              "<author>" . esc_html($co{'author'}) . "</author>\n" .
4937                              "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
4938                              "<guid isPermaLink=\"true\">$co_url</guid>\n" .
4939                              "<link>$co_url</link>\n" .
4940                              "<description>" . esc_html($co{'title'}) . "</description>\n" .
4941                              "<content:encoded>" .
4942                              "<![CDATA[\n";
4943                } elsif ($format eq 'atom') {
4944                        print "<entry>\n" .
4945                              "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
4946                              "<updated>$cd{'iso-8601'}</updated>\n" .
4947                              "<author>\n" .
4948                              "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
4949                        if ($co{'author_email'}) {
4950                                print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
4951                        }
4952                        print "</author>\n" .
4953                              # use committer for contributor
4954                              "<contributor>\n" .
4955                              "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
4956                        if ($co{'committer_email'}) {
4957                                print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
4958                        }
4959                        print "</contributor>\n" .
4960                              "<published>$cd{'iso-8601'}</published>\n" .
4961                              "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
4962                              "<id>$co_url</id>\n" .
4963                              "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
4964                              "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
4965                }
4966                my $comment = $co{'comment'};
4967                print "<pre>\n";
4968                foreach my $line (@$comment) {
4969                        $line = esc_html($line);
4970                        print "$line\n";
4971                }
4972                print "</pre><ul>\n";
4973                foreach my $difftree_line (@difftree) {
4974                        my %difftree = parse_difftree_raw_line($difftree_line);
4975                        next if !$difftree{'from_id'};
4976
4977                        my $file = $difftree{'file'} || $difftree{'to_file'};
4978
4979                        print "<li>" .
4980                              "[" .
4981                              $cgi->a({-href => href(-full=>1, action=>"blobdiff",
4982                                                     hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
4983                                                     hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
4984                                                     file_name=>$file, file_parent=>$difftree{'from_file'}),
4985                                      -title => "diff"}, 'D');
4986                        if ($have_blame) {
4987                                print $cgi->a({-href => href(-full=>1, action=>"blame",
4988                                                             file_name=>$file, hash_base=>$commit),
4989                                              -title => "blame"}, 'B');
4990                        }
4991                        # if this is not a feed of a file history
4992                        if (!defined $file_name || $file_name ne $file) {
4993                                print $cgi->a({-href => href(-full=>1, action=>"history",
4994                                                             file_name=>$file, hash=>$commit),
4995                                              -title => "history"}, 'H');
4996                        }
4997                        $file = esc_path($file);
4998                        print "] ".
4999                              "$file</li>\n";
5000                }
5001                if ($format eq 'rss') {
5002                        print "</ul>]]>\n" .
5003                              "</content:encoded>\n" .
5004                              "</item>\n";
5005                } elsif ($format eq 'atom') {
5006                        print "</ul>\n</div>\n" .
5007                              "</content>\n" .
5008                              "</entry>\n";
5009                }
5010        }
5011
5012        # end of feed
5013        if ($format eq 'rss') {
5014                print "</channel>\n</rss>\n";
5015        }       elsif ($format eq 'atom') {
5016                print "</feed>\n";
5017        }
5018}
5019
5020sub git_rss {
5021        git_feed('rss');
5022}
5023
5024sub git_atom {
5025        git_feed('atom');
5026}
5027
5028sub git_opml {
5029        my @list = git_get_projects_list();
5030
5031        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
5032        print <<XML;
5033<?xml version="1.0" encoding="utf-8"?>
5034<opml version="1.0">
5035<head>
5036  <title>$site_name OPML Export</title>
5037</head>
5038<body>
5039<outline text="git RSS feeds">
5040XML
5041
5042        foreach my $pr (@list) {
5043                my %proj = %$pr;
5044                my $head = git_get_head_hash($proj{'path'});
5045                if (!defined $head) {
5046                        next;
5047                }
5048                $git_dir = "$projectroot/$proj{'path'}";
5049                my %co = parse_commit($head);
5050                if (!%co) {
5051                        next;
5052                }
5053
5054                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
5055                my $rss  = "$my_url?p=$proj{'path'};a=rss";
5056                my $html = "$my_url?p=$proj{'path'};a=summary";
5057                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
5058        }
5059        print <<XML;
5060</outline>
5061</body>
5062</opml>
5063XML
5064}