b706f7435c6e9242f6778a7cdc38a20d5bc3de8e
   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21our $cgi = new CGI;
  22our $version = "++GIT_VERSION++";
  23our $my_url = $cgi->url();
  24our $my_uri = $cgi->url(-absolute => 1);
  25
  26# core git executable to use
  27# this can just be "git" if your webserver has a sensible PATH
  28our $GIT = "++GIT_BINDIR++/git";
  29
  30# absolute fs-path which will be prepended to the project path
  31#our $projectroot = "/pub/scm";
  32our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34# target of the home link on top of all pages
  35our $home_link = $my_uri || "/";
  36
  37# string of the home link on top of all pages
  38our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40# name of your site or organization to appear in page titles
  41# replace this with something more descriptive for clearer bookmarks
  42our $site_name = "++GITWEB_SITENAME++"
  43                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  44
  45# filename of html text to include at top of each page
  46our $site_header = "++GITWEB_SITE_HEADER++";
  47# html text to include at home page
  48our $home_text = "++GITWEB_HOMETEXT++";
  49# filename of html text to include at bottom of each page
  50our $site_footer = "++GITWEB_SITE_FOOTER++";
  51
  52# URI of stylesheets
  53our @stylesheets = ("++GITWEB_CSS++");
  54# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  55our $stylesheet = undef;
  56# URI of GIT logo (72x27 size)
  57our $logo = "++GITWEB_LOGO++";
  58# URI of GIT favicon, assumed to be image/png type
  59our $favicon = "++GITWEB_FAVICON++";
  60
  61# URI and label (title) of GIT logo link
  62#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  63#our $logo_label = "git documentation";
  64our $logo_url = "http://git.or.cz/";
  65our $logo_label = "git homepage";
  66
  67# source of projects list
  68our $projects_list = "++GITWEB_LIST++";
  69
  70# show repository only if this file exists
  71# (only effective if this variable evaluates to true)
  72our $export_ok = "++GITWEB_EXPORT_OK++";
  73
  74# only allow viewing of repositories also shown on the overview page
  75our $strict_export = "++GITWEB_STRICT_EXPORT++";
  76
  77# list of git base URLs used for URL to where fetch project from,
  78# i.e. full URL is "$git_base_url/$project"
  79our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  80
  81# default blob_plain mimetype and default charset for text/plain blob
  82our $default_blob_plain_mimetype = 'text/plain';
  83our $default_text_plain_charset  = undef;
  84
  85# file to use for guessing MIME types before trying /etc/mime.types
  86# (relative to the current git repository)
  87our $mimetypes_file = undef;
  88
  89# You define site-wide feature defaults here; override them with
  90# $GITWEB_CONFIG as necessary.
  91our %feature = (
  92        # feature => {
  93        #       'sub' => feature-sub (subroutine),
  94        #       'override' => allow-override (boolean),
  95        #       'default' => [ default options...] (array reference)}
  96        #
  97        # if feature is overridable (it means that allow-override has true value,
  98        # then feature-sub will be called with default options as parameters;
  99        # return value of feature-sub indicates if to enable specified feature
 100        #
 101        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 102
 103        # Enable the 'blame' blob view, showing the last commit that modified
 104        # each line in the file. This can be very CPU-intensive.
 105
 106        # To enable system wide have in $GITWEB_CONFIG
 107        # $feature{'blame'}{'default'} = [1];
 108        # To have project specific config enable override in $GITWEB_CONFIG
 109        # $feature{'blame'}{'override'} = 1;
 110        # and in project config gitweb.blame = 0|1;
 111        'blame' => {
 112                'sub' => \&feature_blame,
 113                'override' => 0,
 114                'default' => [0]},
 115
 116        # Enable the 'snapshot' link, providing a compressed tarball of any
 117        # tree. This can potentially generate high traffic if you have large
 118        # project.
 119
 120        # To disable system wide have in $GITWEB_CONFIG
 121        # $feature{'snapshot'}{'default'} = [undef];
 122        # To have project specific config enable override in $GITWEB_CONFIG
 123        # $feature{'snapshot'}{'override'} = 1;
 124        # and in project config gitweb.snapshot = none|gzip|bzip2;
 125        'snapshot' => {
 126                'sub' => \&feature_snapshot,
 127                'override' => 0,
 128                #         => [content-encoding, suffix, program]
 129                'default' => ['x-gzip', 'gz', 'gzip']},
 130
 131        # Enable the pickaxe search, which will list the commits that modified
 132        # a given string in a file. This can be practical and quite faster
 133        # alternative to 'blame', but still potentially CPU-intensive.
 134
 135        # To enable system wide have in $GITWEB_CONFIG
 136        # $feature{'pickaxe'}{'default'} = [1];
 137        # To have project specific config enable override in $GITWEB_CONFIG
 138        # $feature{'pickaxe'}{'override'} = 1;
 139        # and in project config gitweb.pickaxe = 0|1;
 140        'pickaxe' => {
 141                'sub' => \&feature_pickaxe,
 142                'override' => 0,
 143                'default' => [1]},
 144
 145        # Make gitweb use an alternative format of the URLs which can be
 146        # more readable and natural-looking: project name is embedded
 147        # directly in the path and the query string contains other
 148        # auxiliary information. All gitweb installations recognize
 149        # URL in either format; this configures in which formats gitweb
 150        # generates links.
 151
 152        # To enable system wide have in $GITWEB_CONFIG
 153        # $feature{'pathinfo'}{'default'} = [1];
 154        # Project specific override is not supported.
 155
 156        # Note that you will need to change the default location of CSS,
 157        # favicon, logo and possibly other files to an absolute URL. Also,
 158        # if gitweb.cgi serves as your indexfile, you will need to force
 159        # $my_uri to contain the script name in your $GITWEB_CONFIG.
 160        'pathinfo' => {
 161                'override' => 0,
 162                'default' => [0]},
 163
 164        # Make gitweb consider projects in project root subdirectories
 165        # to be forks of existing projects. Given project $projname.git,
 166        # projects matching $projname/*.git will not be shown in the main
 167        # projects list, instead a '+' mark will be added to $projname
 168        # there and a 'forks' view will be enabled for the project, listing
 169        # all the forks. This feature is supported only if project list
 170        # is taken from a directory, not file.
 171
 172        # To enable system wide have in $GITWEB_CONFIG
 173        # $feature{'forks'}{'default'} = [1];
 174        # Project specific override is not supported.
 175        'forks' => {
 176                'override' => 0,
 177                'default' => [0]},
 178);
 179
 180sub gitweb_check_feature {
 181        my ($name) = @_;
 182        return unless exists $feature{$name};
 183        my ($sub, $override, @defaults) = (
 184                $feature{$name}{'sub'},
 185                $feature{$name}{'override'},
 186                @{$feature{$name}{'default'}});
 187        if (!$override) { return @defaults; }
 188        if (!defined $sub) {
 189                warn "feature $name is not overrideable";
 190                return @defaults;
 191        }
 192        return $sub->(@defaults);
 193}
 194
 195sub feature_blame {
 196        my ($val) = git_get_project_config('blame', '--bool');
 197
 198        if ($val eq 'true') {
 199                return 1;
 200        } elsif ($val eq 'false') {
 201                return 0;
 202        }
 203
 204        return $_[0];
 205}
 206
 207sub feature_snapshot {
 208        my ($ctype, $suffix, $command) = @_;
 209
 210        my ($val) = git_get_project_config('snapshot');
 211
 212        if ($val eq 'gzip') {
 213                return ('x-gzip', 'gz', 'gzip');
 214        } elsif ($val eq 'bzip2') {
 215                return ('x-bzip2', 'bz2', 'bzip2');
 216        } elsif ($val eq 'none') {
 217                return ();
 218        }
 219
 220        return ($ctype, $suffix, $command);
 221}
 222
 223sub gitweb_have_snapshot {
 224        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 225        my $have_snapshot = (defined $ctype && defined $suffix);
 226
 227        return $have_snapshot;
 228}
 229
 230sub feature_pickaxe {
 231        my ($val) = git_get_project_config('pickaxe', '--bool');
 232
 233        if ($val eq 'true') {
 234                return (1);
 235        } elsif ($val eq 'false') {
 236                return (0);
 237        }
 238
 239        return ($_[0]);
 240}
 241
 242# checking HEAD file with -e is fragile if the repository was
 243# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 244# and then pruned.
 245sub check_head_link {
 246        my ($dir) = @_;
 247        my $headfile = "$dir/HEAD";
 248        return ((-e $headfile) ||
 249                (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 250}
 251
 252sub check_export_ok {
 253        my ($dir) = @_;
 254        return (check_head_link($dir) &&
 255                (!$export_ok || -e "$dir/$export_ok"));
 256}
 257
 258# rename detection options for git-diff and git-diff-tree
 259# - default is '-M', with the cost proportional to
 260#   (number of removed files) * (number of new files).
 261# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 262#   (number of changed files + number of removed files) * (number of new files)
 263# - even more costly is '-C', '--find-copies-harder' with cost
 264#   (number of files in the original tree) * (number of new files)
 265# - one might want to include '-B' option, e.g. '-B', '-M'
 266our @diff_opts = ('-M'); # taken from git_commit
 267
 268our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 269do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 270
 271# version of the core git binary
 272our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 273
 274$projects_list ||= $projectroot;
 275
 276# ======================================================================
 277# input validation and dispatch
 278our $action = $cgi->param('a');
 279if (defined $action) {
 280        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 281                die_error(undef, "Invalid action parameter");
 282        }
 283}
 284
 285# parameters which are pathnames
 286our $project = $cgi->param('p');
 287if (defined $project) {
 288        if (!validate_pathname($project) ||
 289            !(-d "$projectroot/$project") ||
 290            !check_head_link("$projectroot/$project") ||
 291            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 292            ($strict_export && !project_in_list($project))) {
 293                undef $project;
 294                die_error(undef, "No such project");
 295        }
 296}
 297
 298our $file_name = $cgi->param('f');
 299if (defined $file_name) {
 300        if (!validate_pathname($file_name)) {
 301                die_error(undef, "Invalid file parameter");
 302        }
 303}
 304
 305our $file_parent = $cgi->param('fp');
 306if (defined $file_parent) {
 307        if (!validate_pathname($file_parent)) {
 308                die_error(undef, "Invalid file parent parameter");
 309        }
 310}
 311
 312# parameters which are refnames
 313our $hash = $cgi->param('h');
 314if (defined $hash) {
 315        if (!validate_refname($hash)) {
 316                die_error(undef, "Invalid hash parameter");
 317        }
 318}
 319
 320our $hash_parent = $cgi->param('hp');
 321if (defined $hash_parent) {
 322        if (!validate_refname($hash_parent)) {
 323                die_error(undef, "Invalid hash parent parameter");
 324        }
 325}
 326
 327our $hash_base = $cgi->param('hb');
 328if (defined $hash_base) {
 329        if (!validate_refname($hash_base)) {
 330                die_error(undef, "Invalid hash base parameter");
 331        }
 332}
 333
 334our $hash_parent_base = $cgi->param('hpb');
 335if (defined $hash_parent_base) {
 336        if (!validate_refname($hash_parent_base)) {
 337                die_error(undef, "Invalid hash parent base parameter");
 338        }
 339}
 340
 341# other parameters
 342our $page = $cgi->param('pg');
 343if (defined $page) {
 344        if ($page =~ m/[^0-9]/) {
 345                die_error(undef, "Invalid page parameter");
 346        }
 347}
 348
 349our $searchtext = $cgi->param('s');
 350if (defined $searchtext) {
 351        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 352                die_error(undef, "Invalid search parameter");
 353        }
 354        $searchtext = quotemeta $searchtext;
 355}
 356
 357our $searchtype = $cgi->param('st');
 358if (defined $searchtype) {
 359        if ($searchtype =~ m/[^a-z]/) {
 360                die_error(undef, "Invalid searchtype parameter");
 361        }
 362}
 363
 364# now read PATH_INFO and use it as alternative to parameters
 365sub evaluate_path_info {
 366        return if defined $project;
 367        my $path_info = $ENV{"PATH_INFO"};
 368        return if !$path_info;
 369        $path_info =~ s,^/+,,;
 370        return if !$path_info;
 371        # find which part of PATH_INFO is project
 372        $project = $path_info;
 373        $project =~ s,/+$,,;
 374        while ($project && !check_head_link("$projectroot/$project")) {
 375                $project =~ s,/*[^/]*$,,;
 376        }
 377        # validate project
 378        $project = validate_pathname($project);
 379        if (!$project ||
 380            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 381            ($strict_export && !project_in_list($project))) {
 382                undef $project;
 383                return;
 384        }
 385        # do not change any parameters if an action is given using the query string
 386        return if $action;
 387        $path_info =~ s,^$project/*,,;
 388        my ($refname, $pathname) = split(/:/, $path_info, 2);
 389        if (defined $pathname) {
 390                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 391                # we could use git_get_type(branch:pathname), but it needs $git_dir
 392                $pathname =~ s,^/+,,;
 393                if (!$pathname || substr($pathname, -1) eq "/") {
 394                        $action  ||= "tree";
 395                        $pathname =~ s,/$,,;
 396                } else {
 397                        $action  ||= "blob_plain";
 398                }
 399                $hash_base ||= validate_refname($refname);
 400                $file_name ||= validate_pathname($pathname);
 401        } elsif (defined $refname) {
 402                # we got "project.git/branch"
 403                $action ||= "shortlog";
 404                $hash   ||= validate_refname($refname);
 405        }
 406}
 407evaluate_path_info();
 408
 409# path to the current git repository
 410our $git_dir;
 411$git_dir = "$projectroot/$project" if $project;
 412
 413# dispatch
 414my %actions = (
 415        "blame" => \&git_blame2,
 416        "blobdiff" => \&git_blobdiff,
 417        "blobdiff_plain" => \&git_blobdiff_plain,
 418        "blob" => \&git_blob,
 419        "blob_plain" => \&git_blob_plain,
 420        "commitdiff" => \&git_commitdiff,
 421        "commitdiff_plain" => \&git_commitdiff_plain,
 422        "commit" => \&git_commit,
 423        "forks" => \&git_forks,
 424        "heads" => \&git_heads,
 425        "history" => \&git_history,
 426        "log" => \&git_log,
 427        "rss" => \&git_rss,
 428        "atom" => \&git_atom,
 429        "search" => \&git_search,
 430        "search_help" => \&git_search_help,
 431        "shortlog" => \&git_shortlog,
 432        "summary" => \&git_summary,
 433        "tag" => \&git_tag,
 434        "tags" => \&git_tags,
 435        "tree" => \&git_tree,
 436        "snapshot" => \&git_snapshot,
 437        # those below don't need $project
 438        "opml" => \&git_opml,
 439        "project_list" => \&git_project_list,
 440        "project_index" => \&git_project_index,
 441);
 442
 443if (defined $project) {
 444        $action ||= 'summary';
 445} else {
 446        $action ||= 'project_list';
 447}
 448if (!defined($actions{$action})) {
 449        die_error(undef, "Unknown action");
 450}
 451if ($action !~ m/^(opml|project_list|project_index)$/ &&
 452    !$project) {
 453        die_error(undef, "Project needed");
 454}
 455$actions{$action}->();
 456exit;
 457
 458## ======================================================================
 459## action links
 460
 461sub href(%) {
 462        my %params = @_;
 463        # default is to use -absolute url() i.e. $my_uri
 464        my $href = $params{-full} ? $my_url : $my_uri;
 465
 466        # XXX: Warning: If you touch this, check the search form for updating,
 467        # too.
 468
 469        my @mapping = (
 470                project => "p",
 471                action => "a",
 472                file_name => "f",
 473                file_parent => "fp",
 474                hash => "h",
 475                hash_parent => "hp",
 476                hash_base => "hb",
 477                hash_parent_base => "hpb",
 478                page => "pg",
 479                order => "o",
 480                searchtext => "s",
 481                searchtype => "st",
 482        );
 483        my %mapping = @mapping;
 484
 485        $params{'project'} = $project unless exists $params{'project'};
 486
 487        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 488        if ($use_pathinfo) {
 489                # use PATH_INFO for project name
 490                $href .= "/$params{'project'}" if defined $params{'project'};
 491                delete $params{'project'};
 492
 493                # Summary just uses the project path URL
 494                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 495                        delete $params{'action'};
 496                }
 497        }
 498
 499        # now encode the parameters explicitly
 500        my @result = ();
 501        for (my $i = 0; $i < @mapping; $i += 2) {
 502                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 503                if (defined $params{$name}) {
 504                        push @result, $symbol . "=" . esc_param($params{$name});
 505                }
 506        }
 507        $href .= "?" . join(';', @result) if scalar @result;
 508
 509        return $href;
 510}
 511
 512
 513## ======================================================================
 514## validation, quoting/unquoting and escaping
 515
 516sub validate_pathname {
 517        my $input = shift || return undef;
 518
 519        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 520        # at the beginning, at the end, and between slashes.
 521        # also this catches doubled slashes
 522        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 523                return undef;
 524        }
 525        # no null characters
 526        if ($input =~ m!\0!) {
 527                return undef;
 528        }
 529        return $input;
 530}
 531
 532sub validate_refname {
 533        my $input = shift || return undef;
 534
 535        # textual hashes are O.K.
 536        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 537                return $input;
 538        }
 539        # it must be correct pathname
 540        $input = validate_pathname($input)
 541                or return undef;
 542        # restrictions on ref name according to git-check-ref-format
 543        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 544                return undef;
 545        }
 546        return $input;
 547}
 548
 549# very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 550sub to_utf8 {
 551        my $str = shift;
 552        return decode("utf8", $str, Encode::FB_DEFAULT);
 553}
 554
 555# quote unsafe chars, but keep the slash, even when it's not
 556# correct, but quoted slashes look too horrible in bookmarks
 557sub esc_param {
 558        my $str = shift;
 559        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 560        $str =~ s/\+/%2B/g;
 561        $str =~ s/ /\+/g;
 562        return $str;
 563}
 564
 565# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 566sub esc_url {
 567        my $str = shift;
 568        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 569        $str =~ s/\+/%2B/g;
 570        $str =~ s/ /\+/g;
 571        return $str;
 572}
 573
 574# replace invalid utf8 character with SUBSTITUTION sequence
 575sub esc_html ($;%) {
 576        my $str = shift;
 577        my %opts = @_;
 578
 579        $str = to_utf8($str);
 580        $str = escapeHTML($str);
 581        if ($opts{'-nbsp'}) {
 582                $str =~ s/ /&nbsp;/g;
 583        }
 584        $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
 585        return $str;
 586}
 587
 588# quote control characters and escape filename to HTML
 589sub esc_path {
 590        my $str = shift;
 591        my %opts = @_;
 592
 593        $str = to_utf8($str);
 594        $str = escapeHTML($str);
 595        if ($opts{'-nbsp'}) {
 596                $str =~ s/ /&nbsp;/g;
 597        }
 598        $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
 599        return $str;
 600}
 601
 602# Make control characters "printable", using character escape codes (CEC)
 603sub quot_cec {
 604        my $cntrl = shift;
 605        my %es = ( # character escape codes, aka escape sequences
 606                   "\t" => '\t',   # tab            (HT)
 607                   "\n" => '\n',   # line feed      (LF)
 608                   "\r" => '\r',   # carrige return (CR)
 609                   "\f" => '\f',   # form feed      (FF)
 610                   "\b" => '\b',   # backspace      (BS)
 611                   "\a" => '\a',   # alarm (bell)   (BEL)
 612                   "\e" => '\e',   # escape         (ESC)
 613                   "\013" => '\v', # vertical tab   (VT)
 614                   "\000" => '\0', # nul character  (NUL)
 615                   );
 616        my $chr = ( (exists $es{$cntrl})
 617                    ? $es{$cntrl}
 618                    : sprintf('\%03o', ord($cntrl)) );
 619        return "<span class=\"cntrl\">$chr</span>";
 620}
 621
 622# Alternatively use unicode control pictures codepoints,
 623# Unicode "printable representation" (PR)
 624sub quot_upr {
 625        my $cntrl = shift;
 626        my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
 627        return "<span class=\"cntrl\">$chr</span>";
 628}
 629
 630# git may return quoted and escaped filenames
 631sub unquote {
 632        my $str = shift;
 633
 634        sub unq {
 635                my $seq = shift;
 636                my %es = ( # character escape codes, aka escape sequences
 637                        't' => "\t",   # tab            (HT, TAB)
 638                        'n' => "\n",   # newline        (NL)
 639                        'r' => "\r",   # return         (CR)
 640                        'f' => "\f",   # form feed      (FF)
 641                        'b' => "\b",   # backspace      (BS)
 642                        'a' => "\a",   # alarm (bell)   (BEL)
 643                        'e' => "\e",   # escape         (ESC)
 644                        'v' => "\013", # vertical tab   (VT)
 645                );
 646
 647                if ($seq =~ m/^[0-7]{1,3}$/) {
 648                        # octal char sequence
 649                        return chr(oct($seq));
 650                } elsif (exists $es{$seq}) {
 651                        # C escape sequence, aka character escape code
 652                        return $es{$seq}
 653                }
 654                # quoted ordinary character
 655                return $seq;
 656        }
 657
 658        if ($str =~ m/^"(.*)"$/) {
 659                # needs unquoting
 660                $str = $1;
 661                $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
 662        }
 663        return $str;
 664}
 665
 666# escape tabs (convert tabs to spaces)
 667sub untabify {
 668        my $line = shift;
 669
 670        while ((my $pos = index($line, "\t")) != -1) {
 671                if (my $count = (8 - ($pos % 8))) {
 672                        my $spaces = ' ' x $count;
 673                        $line =~ s/\t/$spaces/;
 674                }
 675        }
 676
 677        return $line;
 678}
 679
 680sub project_in_list {
 681        my $project = shift;
 682        my @list = git_get_projects_list();
 683        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 684}
 685
 686## ----------------------------------------------------------------------
 687## HTML aware string manipulation
 688
 689sub chop_str {
 690        my $str = shift;
 691        my $len = shift;
 692        my $add_len = shift || 10;
 693
 694        # allow only $len chars, but don't cut a word if it would fit in $add_len
 695        # if it doesn't fit, cut it if it's still longer than the dots we would add
 696        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 697        my $body = $1;
 698        my $tail = $2;
 699        if (length($tail) > 4) {
 700                $tail = " ...";
 701                $body =~ s/&[^;]*$//; # remove chopped character entities
 702        }
 703        return "$body$tail";
 704}
 705
 706## ----------------------------------------------------------------------
 707## functions returning short strings
 708
 709# CSS class for given age value (in seconds)
 710sub age_class {
 711        my $age = shift;
 712
 713        if ($age < 60*60*2) {
 714                return "age0";
 715        } elsif ($age < 60*60*24*2) {
 716                return "age1";
 717        } else {
 718                return "age2";
 719        }
 720}
 721
 722# convert age in seconds to "nn units ago" string
 723sub age_string {
 724        my $age = shift;
 725        my $age_str;
 726
 727        if ($age > 60*60*24*365*2) {
 728                $age_str = (int $age/60/60/24/365);
 729                $age_str .= " years ago";
 730        } elsif ($age > 60*60*24*(365/12)*2) {
 731                $age_str = int $age/60/60/24/(365/12);
 732                $age_str .= " months ago";
 733        } elsif ($age > 60*60*24*7*2) {
 734                $age_str = int $age/60/60/24/7;
 735                $age_str .= " weeks ago";
 736        } elsif ($age > 60*60*24*2) {
 737                $age_str = int $age/60/60/24;
 738                $age_str .= " days ago";
 739        } elsif ($age > 60*60*2) {
 740                $age_str = int $age/60/60;
 741                $age_str .= " hours ago";
 742        } elsif ($age > 60*2) {
 743                $age_str = int $age/60;
 744                $age_str .= " min ago";
 745        } elsif ($age > 2) {
 746                $age_str = int $age;
 747                $age_str .= " sec ago";
 748        } else {
 749                $age_str .= " right now";
 750        }
 751        return $age_str;
 752}
 753
 754# convert file mode in octal to symbolic file mode string
 755sub mode_str {
 756        my $mode = oct shift;
 757
 758        if (S_ISDIR($mode & S_IFMT)) {
 759                return 'drwxr-xr-x';
 760        } elsif (S_ISLNK($mode)) {
 761                return 'lrwxrwxrwx';
 762        } elsif (S_ISREG($mode)) {
 763                # git cares only about the executable bit
 764                if ($mode & S_IXUSR) {
 765                        return '-rwxr-xr-x';
 766                } else {
 767                        return '-rw-r--r--';
 768                };
 769        } else {
 770                return '----------';
 771        }
 772}
 773
 774# convert file mode in octal to file type string
 775sub file_type {
 776        my $mode = shift;
 777
 778        if ($mode !~ m/^[0-7]+$/) {
 779                return $mode;
 780        } else {
 781                $mode = oct $mode;
 782        }
 783
 784        if (S_ISDIR($mode & S_IFMT)) {
 785                return "directory";
 786        } elsif (S_ISLNK($mode)) {
 787                return "symlink";
 788        } elsif (S_ISREG($mode)) {
 789                return "file";
 790        } else {
 791                return "unknown";
 792        }
 793}
 794
 795# convert file mode in octal to file type description string
 796sub file_type_long {
 797        my $mode = shift;
 798
 799        if ($mode !~ m/^[0-7]+$/) {
 800                return $mode;
 801        } else {
 802                $mode = oct $mode;
 803        }
 804
 805        if (S_ISDIR($mode & S_IFMT)) {
 806                return "directory";
 807        } elsif (S_ISLNK($mode)) {
 808                return "symlink";
 809        } elsif (S_ISREG($mode)) {
 810                if ($mode & S_IXUSR) {
 811                        return "executable";
 812                } else {
 813                        return "file";
 814                };
 815        } else {
 816                return "unknown";
 817        }
 818}
 819
 820
 821## ----------------------------------------------------------------------
 822## functions returning short HTML fragments, or transforming HTML fragments
 823## which don't beling to other sections
 824
 825# format line of commit message.
 826sub format_log_line_html {
 827        my $line = shift;
 828
 829        $line = esc_html($line, -nbsp=>1);
 830        if ($line =~ m/([0-9a-fA-F]{40})/) {
 831                my $hash_text = $1;
 832                if (git_get_type($hash_text) eq "commit") {
 833                        my $link =
 834                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 835                                        -class => "text"}, $hash_text);
 836                        $line =~ s/$hash_text/$link/;
 837                }
 838        }
 839        return $line;
 840}
 841
 842# format marker of refs pointing to given object
 843sub format_ref_marker {
 844        my ($refs, $id) = @_;
 845        my $markers = '';
 846
 847        if (defined $refs->{$id}) {
 848                foreach my $ref (@{$refs->{$id}}) {
 849                        my ($type, $name) = qw();
 850                        # e.g. tags/v2.6.11 or heads/next
 851                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 852                                $type = $1;
 853                                $name = $2;
 854                        } else {
 855                                $type = "ref";
 856                                $name = $ref;
 857                        }
 858
 859                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 860                }
 861        }
 862
 863        if ($markers) {
 864                return ' <span class="refs">'. $markers . '</span>';
 865        } else {
 866                return "";
 867        }
 868}
 869
 870# format, perhaps shortened and with markers, title line
 871sub format_subject_html {
 872        my ($long, $short, $href, $extra) = @_;
 873        $extra = '' unless defined($extra);
 874
 875        if (length($short) < length($long)) {
 876                return $cgi->a({-href => $href, -class => "list subject",
 877                                -title => to_utf8($long)},
 878                       esc_html($short) . $extra);
 879        } else {
 880                return $cgi->a({-href => $href, -class => "list subject"},
 881                       esc_html($long)  . $extra);
 882        }
 883}
 884
 885# format patch (diff) line (rather not to be used for diff headers)
 886sub format_diff_line {
 887        my $line = shift;
 888        my ($from, $to) = @_;
 889        my $char = substr($line, 0, 1);
 890        my $diff_class = "";
 891
 892        chomp $line;
 893
 894        if ($char eq '+') {
 895                $diff_class = " add";
 896        } elsif ($char eq "-") {
 897                $diff_class = " rem";
 898        } elsif ($char eq "@") {
 899                $diff_class = " chunk_header";
 900        } elsif ($char eq "\\") {
 901                $diff_class = " incomplete";
 902        }
 903        $line = untabify($line);
 904        if ($from && $to && $line =~ m/^\@{2} /) {
 905                my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
 906                        $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
 907
 908                $from_lines = 0 unless defined $from_lines;
 909                $to_lines   = 0 unless defined $to_lines;
 910
 911                if ($from->{'href'}) {
 912                        $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
 913                                             -class=>"list"}, $from_text);
 914                }
 915                if ($to->{'href'}) {
 916                        $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
 917                                             -class=>"list"}, $to_text);
 918                }
 919                $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
 920                        "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
 921                return "<div class=\"diff$diff_class\">$line</div>\n";
 922        }
 923        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
 924}
 925
 926## ----------------------------------------------------------------------
 927## git utility subroutines, invoking git commands
 928
 929# returns path to the core git executable and the --git-dir parameter as list
 930sub git_cmd {
 931        return $GIT, '--git-dir='.$git_dir;
 932}
 933
 934# returns path to the core git executable and the --git-dir parameter as string
 935sub git_cmd_str {
 936        return join(' ', git_cmd());
 937}
 938
 939# get HEAD ref of given project as hash
 940sub git_get_head_hash {
 941        my $project = shift;
 942        my $o_git_dir = $git_dir;
 943        my $retval = undef;
 944        $git_dir = "$projectroot/$project";
 945        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 946                my $head = <$fd>;
 947                close $fd;
 948                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 949                        $retval = $1;
 950                }
 951        }
 952        if (defined $o_git_dir) {
 953                $git_dir = $o_git_dir;
 954        }
 955        return $retval;
 956}
 957
 958# get type of given object
 959sub git_get_type {
 960        my $hash = shift;
 961
 962        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 963        my $type = <$fd>;
 964        close $fd or return;
 965        chomp $type;
 966        return $type;
 967}
 968
 969sub git_get_project_config {
 970        my ($key, $type) = @_;
 971
 972        return unless ($key);
 973        $key =~ s/^gitweb\.//;
 974        return if ($key =~ m/\W/);
 975
 976        my @x = (git_cmd(), 'repo-config');
 977        if (defined $type) { push @x, $type; }
 978        push @x, "--get";
 979        push @x, "gitweb.$key";
 980        my $val = qx(@x);
 981        chomp $val;
 982        return ($val);
 983}
 984
 985# get hash of given path at given ref
 986sub git_get_hash_by_path {
 987        my $base = shift;
 988        my $path = shift || return undef;
 989        my $type = shift;
 990
 991        $path =~ s,/+$,,;
 992
 993        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 994                or die_error(undef, "Open git-ls-tree failed");
 995        my $line = <$fd>;
 996        close $fd or return undef;
 997
 998        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 999        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
1000        if (defined $type && $type ne $2) {
1001                # type doesn't match
1002                return undef;
1003        }
1004        return $3;
1005}
1006
1007## ......................................................................
1008## git utility functions, directly accessing git repository
1009
1010sub git_get_project_description {
1011        my $path = shift;
1012
1013        open my $fd, "$projectroot/$path/description" or return undef;
1014        my $descr = <$fd>;
1015        close $fd;
1016        chomp $descr;
1017        return $descr;
1018}
1019
1020sub git_get_project_url_list {
1021        my $path = shift;
1022
1023        open my $fd, "$projectroot/$path/cloneurl" or return;
1024        my @git_project_url_list = map { chomp; $_ } <$fd>;
1025        close $fd;
1026
1027        return wantarray ? @git_project_url_list : \@git_project_url_list;
1028}
1029
1030sub git_get_projects_list {
1031        my ($filter) = @_;
1032        my @list;
1033
1034        $filter ||= '';
1035        $filter =~ s/\.git$//;
1036
1037        if (-d $projects_list) {
1038                # search in directory
1039                my $dir = $projects_list . ($filter ? "/$filter" : '');
1040                # remove the trailing "/"
1041                $dir =~ s!/+$!!;
1042                my $pfxlen = length("$dir");
1043
1044                my ($check_forks) = gitweb_check_feature('forks');
1045
1046                File::Find::find({
1047                        follow_fast => 1, # follow symbolic links
1048                        dangling_symlinks => 0, # ignore dangling symlinks, silently
1049                        wanted => sub {
1050                                # skip project-list toplevel, if we get it.
1051                                return if (m!^[/.]$!);
1052                                # only directories can be git repositories
1053                                return unless (-d $_);
1054
1055                                my $subdir = substr($File::Find::name, $pfxlen + 1);
1056                                # we check related file in $projectroot
1057                                if ($check_forks and $subdir =~ m#/.#) {
1058                                        $File::Find::prune = 1;
1059                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1060                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1061                                        $File::Find::prune = 1;
1062                                }
1063                        },
1064                }, "$dir");
1065
1066        } elsif (-f $projects_list) {
1067                # read from file(url-encoded):
1068                # 'git%2Fgit.git Linus+Torvalds'
1069                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1070                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1071                open my ($fd), $projects_list or return;
1072                while (my $line = <$fd>) {
1073                        chomp $line;
1074                        my ($path, $owner) = split ' ', $line;
1075                        $path = unescape($path);
1076                        $owner = unescape($owner);
1077                        if (!defined $path) {
1078                                next;
1079                        }
1080                        if ($filter ne '') {
1081                                # looking for forks;
1082                                my $pfx = substr($path, 0, length($filter));
1083                                if ($pfx ne $filter) {
1084                                        next;
1085                                }
1086                                my $sfx = substr($path, length($filter));
1087                                if ($sfx !~ /^\/.*\.git$/) {
1088                                        next;
1089                                }
1090                        }
1091                        if (check_export_ok("$projectroot/$path")) {
1092                                my $pr = {
1093                                        path => $path,
1094                                        owner => to_utf8($owner),
1095                                };
1096                                push @list, $pr
1097                        }
1098                }
1099                close $fd;
1100        }
1101        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
1102        return @list;
1103}
1104
1105sub git_get_project_owner {
1106        my $project = shift;
1107        my $owner;
1108
1109        return undef unless $project;
1110
1111        # read from file (url-encoded):
1112        # 'git%2Fgit.git Linus+Torvalds'
1113        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1114        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1115        if (-f $projects_list) {
1116                open (my $fd , $projects_list);
1117                while (my $line = <$fd>) {
1118                        chomp $line;
1119                        my ($pr, $ow) = split ' ', $line;
1120                        $pr = unescape($pr);
1121                        $ow = unescape($ow);
1122                        if ($pr eq $project) {
1123                                $owner = to_utf8($ow);
1124                                last;
1125                        }
1126                }
1127                close $fd;
1128        }
1129        if (!defined $owner) {
1130                $owner = get_file_owner("$projectroot/$project");
1131        }
1132
1133        return $owner;
1134}
1135
1136sub git_get_last_activity {
1137        my ($path) = @_;
1138        my $fd;
1139
1140        $git_dir = "$projectroot/$path";
1141        open($fd, "-|", git_cmd(), 'for-each-ref',
1142             '--format=%(refname) %(committer)',
1143             '--sort=-committerdate',
1144             'refs/heads') or return;
1145        my $most_recent = <$fd>;
1146        close $fd or return;
1147        if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1148                my $timestamp = $1;
1149                my $age = time - $timestamp;
1150                return ($age, age_string($age));
1151        }
1152}
1153
1154sub git_get_references {
1155        my $type = shift || "";
1156        my %refs;
1157        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
1158        # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
1159        open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
1160                ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
1161                or return;
1162
1163        while (my $line = <$fd>) {
1164                chomp $line;
1165                if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
1166                        if (defined $refs{$1}) {
1167                                push @{$refs{$1}}, $2;
1168                        } else {
1169                                $refs{$1} = [ $2 ];
1170                        }
1171                }
1172        }
1173        close $fd or return;
1174        return \%refs;
1175}
1176
1177sub git_get_rev_name_tags {
1178        my $hash = shift || return undef;
1179
1180        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1181                or return;
1182        my $name_rev = <$fd>;
1183        close $fd;
1184
1185        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1186                return $1;
1187        } else {
1188                # catches also '$hash undefined' output
1189                return undef;
1190        }
1191}
1192
1193## ----------------------------------------------------------------------
1194## parse to hash functions
1195
1196sub parse_date {
1197        my $epoch = shift;
1198        my $tz = shift || "-0000";
1199
1200        my %date;
1201        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1202        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1203        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1204        $date{'hour'} = $hour;
1205        $date{'minute'} = $min;
1206        $date{'mday'} = $mday;
1207        $date{'day'} = $days[$wday];
1208        $date{'month'} = $months[$mon];
1209        $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1210                             $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1211        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1212                             $mday, $months[$mon], $hour ,$min;
1213        $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
1214                             1900+$year, $mon, $mday, $hour ,$min, $sec;
1215
1216        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1217        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1218        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1219        $date{'hour_local'} = $hour;
1220        $date{'minute_local'} = $min;
1221        $date{'tz_local'} = $tz;
1222        $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
1223                                  1900+$year, $mon+1, $mday,
1224                                  $hour, $min, $sec, $tz);
1225        return %date;
1226}
1227
1228sub parse_tag {
1229        my $tag_id = shift;
1230        my %tag;
1231        my @comment;
1232
1233        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1234        $tag{'id'} = $tag_id;
1235        while (my $line = <$fd>) {
1236                chomp $line;
1237                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1238                        $tag{'object'} = $1;
1239                } elsif ($line =~ m/^type (.+)$/) {
1240                        $tag{'type'} = $1;
1241                } elsif ($line =~ m/^tag (.+)$/) {
1242                        $tag{'name'} = $1;
1243                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1244                        $tag{'author'} = $1;
1245                        $tag{'epoch'} = $2;
1246                        $tag{'tz'} = $3;
1247                } elsif ($line =~ m/--BEGIN/) {
1248                        push @comment, $line;
1249                        last;
1250                } elsif ($line eq "") {
1251                        last;
1252                }
1253        }
1254        push @comment, <$fd>;
1255        $tag{'comment'} = \@comment;
1256        close $fd or return;
1257        if (!defined $tag{'name'}) {
1258                return
1259        };
1260        return %tag
1261}
1262
1263sub parse_commit {
1264        my $commit_id = shift;
1265        my $commit_text = shift;
1266
1267        my @commit_lines;
1268        my %co;
1269
1270        if (defined $commit_text) {
1271                @commit_lines = @$commit_text;
1272        } else {
1273                local $/ = "\0";
1274                open my $fd, "-|", git_cmd(), "rev-list",
1275                        "--header", "--parents", "--max-count=1",
1276                        $commit_id, "--"
1277                        or return;
1278                @commit_lines = split '\n', <$fd>;
1279                close $fd or return;
1280                pop @commit_lines;
1281        }
1282        my $header = shift @commit_lines;
1283        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1284                return;
1285        }
1286        ($co{'id'}, my @parents) = split ' ', $header;
1287        $co{'parents'} = \@parents;
1288        $co{'parent'} = $parents[0];
1289        while (my $line = shift @commit_lines) {
1290                last if $line eq "\n";
1291                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1292                        $co{'tree'} = $1;
1293                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1294                        $co{'author'} = $1;
1295                        $co{'author_epoch'} = $2;
1296                        $co{'author_tz'} = $3;
1297                        if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
1298                                $co{'author_name'}  = $1;
1299                                $co{'author_email'} = $2;
1300                        } else {
1301                                $co{'author_name'} = $co{'author'};
1302                        }
1303                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1304                        $co{'committer'} = $1;
1305                        $co{'committer_epoch'} = $2;
1306                        $co{'committer_tz'} = $3;
1307                        $co{'committer_name'} = $co{'committer'};
1308                        if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
1309                                $co{'committer_name'}  = $1;
1310                                $co{'committer_email'} = $2;
1311                        } else {
1312                                $co{'committer_name'} = $co{'committer'};
1313                        }
1314                }
1315        }
1316        if (!defined $co{'tree'}) {
1317                return;
1318        };
1319
1320        foreach my $title (@commit_lines) {
1321                $title =~ s/^    //;
1322                if ($title ne "") {
1323                        $co{'title'} = chop_str($title, 80, 5);
1324                        # remove leading stuff of merges to make the interesting part visible
1325                        if (length($title) > 50) {
1326                                $title =~ s/^Automatic //;
1327                                $title =~ s/^merge (of|with) /Merge ... /i;
1328                                if (length($title) > 50) {
1329                                        $title =~ s/(http|rsync):\/\///;
1330                                }
1331                                if (length($title) > 50) {
1332                                        $title =~ s/(master|www|rsync)\.//;
1333                                }
1334                                if (length($title) > 50) {
1335                                        $title =~ s/kernel.org:?//;
1336                                }
1337                                if (length($title) > 50) {
1338                                        $title =~ s/\/pub\/scm//;
1339                                }
1340                        }
1341                        $co{'title_short'} = chop_str($title, 50, 5);
1342                        last;
1343                }
1344        }
1345        if ($co{'title'} eq "") {
1346                $co{'title'} = $co{'title_short'} = '(no commit message)';
1347        }
1348        # remove added spaces
1349        foreach my $line (@commit_lines) {
1350                $line =~ s/^    //;
1351        }
1352        $co{'comment'} = \@commit_lines;
1353
1354        my $age = time - $co{'committer_epoch'};
1355        $co{'age'} = $age;
1356        $co{'age_string'} = age_string($age);
1357        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1358        if ($age > 60*60*24*7*2) {
1359                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1360                $co{'age_string_age'} = $co{'age_string'};
1361        } else {
1362                $co{'age_string_date'} = $co{'age_string'};
1363                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1364        }
1365        return %co;
1366}
1367
1368# parse ref from ref_file, given by ref_id, with given type
1369sub parse_ref {
1370        my $ref_file = shift;
1371        my $ref_id = shift;
1372        my $type = shift || git_get_type($ref_id);
1373        my %ref_item;
1374
1375        $ref_item{'type'} = $type;
1376        $ref_item{'id'} = $ref_id;
1377        $ref_item{'epoch'} = 0;
1378        $ref_item{'age'} = "unknown";
1379        if ($type eq "tag") {
1380                my %tag = parse_tag($ref_id);
1381                $ref_item{'comment'} = $tag{'comment'};
1382                if ($tag{'type'} eq "commit") {
1383                        my %co = parse_commit($tag{'object'});
1384                        $ref_item{'epoch'} = $co{'committer_epoch'};
1385                        $ref_item{'age'} = $co{'age_string'};
1386                } elsif (defined($tag{'epoch'})) {
1387                        my $age = time - $tag{'epoch'};
1388                        $ref_item{'epoch'} = $tag{'epoch'};
1389                        $ref_item{'age'} = age_string($age);
1390                }
1391                $ref_item{'reftype'} = $tag{'type'};
1392                $ref_item{'name'} = $tag{'name'};
1393                $ref_item{'refid'} = $tag{'object'};
1394        } elsif ($type eq "commit"){
1395                my %co = parse_commit($ref_id);
1396                $ref_item{'reftype'} = "commit";
1397                $ref_item{'name'} = $ref_file;
1398                $ref_item{'title'} = $co{'title'};
1399                $ref_item{'refid'} = $ref_id;
1400                $ref_item{'epoch'} = $co{'committer_epoch'};
1401                $ref_item{'age'} = $co{'age_string'};
1402        } else {
1403                $ref_item{'reftype'} = $type;
1404                $ref_item{'name'} = $ref_file;
1405                $ref_item{'refid'} = $ref_id;
1406        }
1407
1408        return %ref_item;
1409}
1410
1411# parse line of git-diff-tree "raw" output
1412sub parse_difftree_raw_line {
1413        my $line = shift;
1414        my %res;
1415
1416        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1417        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1418        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1419                $res{'from_mode'} = $1;
1420                $res{'to_mode'} = $2;
1421                $res{'from_id'} = $3;
1422                $res{'to_id'} = $4;
1423                $res{'status'} = $5;
1424                $res{'similarity'} = $6;
1425                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1426                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1427                } else {
1428                        $res{'file'} = unquote($7);
1429                }
1430        }
1431        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1432        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1433                $res{'commit'} = $1;
1434        }
1435
1436        return wantarray ? %res : \%res;
1437}
1438
1439# parse line of git-ls-tree output
1440sub parse_ls_tree_line ($;%) {
1441        my $line = shift;
1442        my %opts = @_;
1443        my %res;
1444
1445        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1446        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1447
1448        $res{'mode'} = $1;
1449        $res{'type'} = $2;
1450        $res{'hash'} = $3;
1451        if ($opts{'-z'}) {
1452                $res{'name'} = $4;
1453        } else {
1454                $res{'name'} = unquote($4);
1455        }
1456
1457        return wantarray ? %res : \%res;
1458}
1459
1460## ......................................................................
1461## parse to array of hashes functions
1462
1463sub git_get_heads_list {
1464        my $limit = shift;
1465        my @headslist;
1466
1467        open my $fd, '-|', git_cmd(), 'for-each-ref',
1468                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1469                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1470                'refs/heads'
1471                or return;
1472        while (my $line = <$fd>) {
1473                my %ref_item;
1474
1475                chomp $line;
1476                my ($refinfo, $committerinfo) = split(/\0/, $line);
1477                my ($hash, $name, $title) = split(' ', $refinfo, 3);
1478                my ($committer, $epoch, $tz) =
1479                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1480                $name =~ s!^refs/heads/!!;
1481
1482                $ref_item{'name'}  = $name;
1483                $ref_item{'id'}    = $hash;
1484                $ref_item{'title'} = $title || '(no commit message)';
1485                $ref_item{'epoch'} = $epoch;
1486                if ($epoch) {
1487                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1488                } else {
1489                        $ref_item{'age'} = "unknown";
1490                }
1491
1492                push @headslist, \%ref_item;
1493        }
1494        close $fd;
1495
1496        return wantarray ? @headslist : \@headslist;
1497}
1498
1499sub git_get_tags_list {
1500        my $limit = shift;
1501        my @tagslist;
1502
1503        open my $fd, '-|', git_cmd(), 'for-each-ref',
1504                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1505                '--format=%(objectname) %(objecttype) %(refname) '.
1506                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1507                'refs/tags'
1508                or return;
1509        while (my $line = <$fd>) {
1510                my %ref_item;
1511
1512                chomp $line;
1513                my ($refinfo, $creatorinfo) = split(/\0/, $line);
1514                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1515                my ($creator, $epoch, $tz) =
1516                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1517                $name =~ s!^refs/tags/!!;
1518
1519                $ref_item{'type'} = $type;
1520                $ref_item{'id'} = $id;
1521                $ref_item{'name'} = $name;
1522                if ($type eq "tag") {
1523                        $ref_item{'subject'} = $title;
1524                        $ref_item{'reftype'} = $reftype;
1525                        $ref_item{'refid'}   = $refid;
1526                } else {
1527                        $ref_item{'reftype'} = $type;
1528                        $ref_item{'refid'}   = $id;
1529                }
1530
1531                if ($type eq "tag" || $type eq "commit") {
1532                        $ref_item{'epoch'} = $epoch;
1533                        if ($epoch) {
1534                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1535                        } else {
1536                                $ref_item{'age'} = "unknown";
1537                        }
1538                }
1539
1540                push @tagslist, \%ref_item;
1541        }
1542        close $fd;
1543
1544        return wantarray ? @tagslist : \@tagslist;
1545}
1546
1547## ----------------------------------------------------------------------
1548## filesystem-related functions
1549
1550sub get_file_owner {
1551        my $path = shift;
1552
1553        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1554        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1555        if (!defined $gcos) {
1556                return undef;
1557        }
1558        my $owner = $gcos;
1559        $owner =~ s/[,;].*$//;
1560        return to_utf8($owner);
1561}
1562
1563## ......................................................................
1564## mimetype related functions
1565
1566sub mimetype_guess_file {
1567        my $filename = shift;
1568        my $mimemap = shift;
1569        -r $mimemap or return undef;
1570
1571        my %mimemap;
1572        open(MIME, $mimemap) or return undef;
1573        while (<MIME>) {
1574                next if m/^#/; # skip comments
1575                my ($mime, $exts) = split(/\t+/);
1576                if (defined $exts) {
1577                        my @exts = split(/\s+/, $exts);
1578                        foreach my $ext (@exts) {
1579                                $mimemap{$ext} = $mime;
1580                        }
1581                }
1582        }
1583        close(MIME);
1584
1585        $filename =~ /\.([^.]*)$/;
1586        return $mimemap{$1};
1587}
1588
1589sub mimetype_guess {
1590        my $filename = shift;
1591        my $mime;
1592        $filename =~ /\./ or return undef;
1593
1594        if ($mimetypes_file) {
1595                my $file = $mimetypes_file;
1596                if ($file !~ m!^/!) { # if it is relative path
1597                        # it is relative to project
1598                        $file = "$projectroot/$project/$file";
1599                }
1600                $mime = mimetype_guess_file($filename, $file);
1601        }
1602        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1603        return $mime;
1604}
1605
1606sub blob_mimetype {
1607        my $fd = shift;
1608        my $filename = shift;
1609
1610        if ($filename) {
1611                my $mime = mimetype_guess($filename);
1612                $mime and return $mime;
1613        }
1614
1615        # just in case
1616        return $default_blob_plain_mimetype unless $fd;
1617
1618        if (-T $fd) {
1619                return 'text/plain' .
1620                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1621        } elsif (! $filename) {
1622                return 'application/octet-stream';
1623        } elsif ($filename =~ m/\.png$/i) {
1624                return 'image/png';
1625        } elsif ($filename =~ m/\.gif$/i) {
1626                return 'image/gif';
1627        } elsif ($filename =~ m/\.jpe?g$/i) {
1628                return 'image/jpeg';
1629        } else {
1630                return 'application/octet-stream';
1631        }
1632}
1633
1634## ======================================================================
1635## functions printing HTML: header, footer, error page
1636
1637sub git_header_html {
1638        my $status = shift || "200 OK";
1639        my $expires = shift;
1640
1641        my $title = "$site_name";
1642        if (defined $project) {
1643                $title .= " - $project";
1644                if (defined $action) {
1645                        $title .= "/$action";
1646                        if (defined $file_name) {
1647                                $title .= " - " . esc_path($file_name);
1648                                if ($action eq "tree" && $file_name !~ m|/$|) {
1649                                        $title .= "/";
1650                                }
1651                        }
1652                }
1653        }
1654        my $content_type;
1655        # require explicit support from the UA if we are to send the page as
1656        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1657        # we have to do this because MSIE sometimes globs '*/*', pretending to
1658        # support xhtml+xml but choking when it gets what it asked for.
1659        if (defined $cgi->http('HTTP_ACCEPT') &&
1660            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1661            $cgi->Accept('application/xhtml+xml') != 0) {
1662                $content_type = 'application/xhtml+xml';
1663        } else {
1664                $content_type = 'text/html';
1665        }
1666        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1667                           -status=> $status, -expires => $expires);
1668        print <<EOF;
1669<?xml version="1.0" encoding="utf-8"?>
1670<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1671<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1672<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1673<!-- git core binaries version $git_version -->
1674<head>
1675<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1676<meta name="generator" content="gitweb/$version git/$git_version"/>
1677<meta name="robots" content="index, nofollow"/>
1678<title>$title</title>
1679EOF
1680# print out each stylesheet that exist
1681        if (defined $stylesheet) {
1682#provides backwards capability for those people who define style sheet in a config file
1683                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1684        } else {
1685                foreach my $stylesheet (@stylesheets) {
1686                        next unless $stylesheet;
1687                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1688                }
1689        }
1690        if (defined $project) {
1691                printf('<link rel="alternate" title="%s log RSS feed" '.
1692                       'href="%s" type="application/rss+xml" />'."\n",
1693                       esc_param($project), href(action=>"rss"));
1694                printf('<link rel="alternate" title="%s log Atom feed" '.
1695                       'href="%s" type="application/atom+xml" />'."\n",
1696                       esc_param($project), href(action=>"atom"));
1697        } else {
1698                printf('<link rel="alternate" title="%s projects list" '.
1699                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1700                       $site_name, href(project=>undef, action=>"project_index"));
1701                printf('<link rel="alternate" title="%s projects feeds" '.
1702                       'href="%s" type="text/x-opml"/>'."\n",
1703                       $site_name, href(project=>undef, action=>"opml"));
1704        }
1705        if (defined $favicon) {
1706                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1707        }
1708
1709        print "</head>\n" .
1710              "<body>\n";
1711
1712        if (-f $site_header) {
1713                open (my $fd, $site_header);
1714                print <$fd>;
1715                close $fd;
1716        }
1717
1718        print "<div class=\"page_header\">\n" .
1719              $cgi->a({-href => esc_url($logo_url),
1720                       -title => $logo_label},
1721                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1722        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1723        if (defined $project) {
1724                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1725                if (defined $action) {
1726                        print " / $action";
1727                }
1728                print "\n";
1729                if (!defined $searchtext) {
1730                        $searchtext = "";
1731                }
1732                my $search_hash;
1733                if (defined $hash_base) {
1734                        $search_hash = $hash_base;
1735                } elsif (defined $hash) {
1736                        $search_hash = $hash;
1737                } else {
1738                        $search_hash = "HEAD";
1739                }
1740                $cgi->param("a", "search");
1741                $cgi->param("h", $search_hash);
1742                $cgi->param("p", $project);
1743                print $cgi->startform(-method => "get", -action => $my_uri) .
1744                      "<div class=\"search\">\n" .
1745                      $cgi->hidden(-name => "p") . "\n" .
1746                      $cgi->hidden(-name => "a") . "\n" .
1747                      $cgi->hidden(-name => "h") . "\n" .
1748                      $cgi->popup_menu(-name => 'st', -default => 'commit',
1749                                       -values => ['commit', 'author', 'committer', 'pickaxe']) .
1750                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1751                      " search:\n",
1752                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1753                      "</div>" .
1754                      $cgi->end_form() . "\n";
1755        }
1756        print "</div>\n";
1757}
1758
1759sub git_footer_html {
1760        print "<div class=\"page_footer\">\n";
1761        if (defined $project) {
1762                my $descr = git_get_project_description($project);
1763                if (defined $descr) {
1764                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1765                }
1766                print $cgi->a({-href => href(action=>"rss"),
1767                              -class => "rss_logo"}, "RSS") . " ";
1768                print $cgi->a({-href => href(action=>"atom"),
1769                              -class => "rss_logo"}, "Atom") . "\n";
1770        } else {
1771                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1772                              -class => "rss_logo"}, "OPML") . " ";
1773                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1774                              -class => "rss_logo"}, "TXT") . "\n";
1775        }
1776        print "</div>\n" ;
1777
1778        if (-f $site_footer) {
1779                open (my $fd, $site_footer);
1780                print <$fd>;
1781                close $fd;
1782        }
1783
1784        print "</body>\n" .
1785              "</html>";
1786}
1787
1788sub die_error {
1789        my $status = shift || "403 Forbidden";
1790        my $error = shift || "Malformed query, file missing or permission denied";
1791
1792        git_header_html($status);
1793        print <<EOF;
1794<div class="page_body">
1795<br /><br />
1796$status - $error
1797<br />
1798</div>
1799EOF
1800        git_footer_html();
1801        exit;
1802}
1803
1804## ----------------------------------------------------------------------
1805## functions printing or outputting HTML: navigation
1806
1807sub git_print_page_nav {
1808        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1809        $extra = '' if !defined $extra; # pager or formats
1810
1811        my @navs = qw(summary shortlog log commit commitdiff tree);
1812        if ($suppress) {
1813                @navs = grep { $_ ne $suppress } @navs;
1814        }
1815
1816        my %arg = map { $_ => {action=>$_} } @navs;
1817        if (defined $head) {
1818                for (qw(commit commitdiff)) {
1819                        $arg{$_}{hash} = $head;
1820                }
1821                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1822                        for (qw(shortlog log)) {
1823                                $arg{$_}{hash} = $head;
1824                        }
1825                }
1826        }
1827        $arg{tree}{hash} = $treehead if defined $treehead;
1828        $arg{tree}{hash_base} = $treebase if defined $treebase;
1829
1830        print "<div class=\"page_nav\">\n" .
1831                (join " | ",
1832                 map { $_ eq $current ?
1833                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1834                 } @navs);
1835        print "<br/>\n$extra<br/>\n" .
1836              "</div>\n";
1837}
1838
1839sub format_paging_nav {
1840        my ($action, $hash, $head, $page, $nrevs) = @_;
1841        my $paging_nav;
1842
1843
1844        if ($hash ne $head || $page) {
1845                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1846        } else {
1847                $paging_nav .= "HEAD";
1848        }
1849
1850        if ($page > 0) {
1851                $paging_nav .= " &sdot; " .
1852                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1853                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1854        } else {
1855                $paging_nav .= " &sdot; prev";
1856        }
1857
1858        if ($nrevs >= (100 * ($page+1)-1)) {
1859                $paging_nav .= " &sdot; " .
1860                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1861                                 -accesskey => "n", -title => "Alt-n"}, "next");
1862        } else {
1863                $paging_nav .= " &sdot; next";
1864        }
1865
1866        return $paging_nav;
1867}
1868
1869## ......................................................................
1870## functions printing or outputting HTML: div
1871
1872sub git_print_header_div {
1873        my ($action, $title, $hash, $hash_base) = @_;
1874        my %args = ();
1875
1876        $args{action} = $action;
1877        $args{hash} = $hash if $hash;
1878        $args{hash_base} = $hash_base if $hash_base;
1879
1880        print "<div class=\"header\">\n" .
1881              $cgi->a({-href => href(%args), -class => "title"},
1882              $title ? $title : $action) .
1883              "\n</div>\n";
1884}
1885
1886#sub git_print_authorship (\%) {
1887sub git_print_authorship {
1888        my $co = shift;
1889
1890        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1891        print "<div class=\"author_date\">" .
1892              esc_html($co->{'author_name'}) .
1893              " [$ad{'rfc2822'}";
1894        if ($ad{'hour_local'} < 6) {
1895                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1896                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1897        } else {
1898                printf(" (%02d:%02d %s)",
1899                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1900        }
1901        print "]</div>\n";
1902}
1903
1904sub git_print_page_path {
1905        my $name = shift;
1906        my $type = shift;
1907        my $hb = shift;
1908
1909
1910        print "<div class=\"page_path\">";
1911        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1912                      -title => 'tree root'}, "[$project]");
1913        print " / ";
1914        if (defined $name) {
1915                my @dirname = split '/', $name;
1916                my $basename = pop @dirname;
1917                my $fullname = '';
1918
1919                foreach my $dir (@dirname) {
1920                        $fullname .= ($fullname ? '/' : '') . $dir;
1921                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1922                                                     hash_base=>$hb),
1923                                      -title => esc_html($fullname)}, esc_path($dir));
1924                        print " / ";
1925                }
1926                if (defined $type && $type eq 'blob') {
1927                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1928                                                     hash_base=>$hb),
1929                                      -title => esc_html($name)}, esc_path($basename));
1930                } elsif (defined $type && $type eq 'tree') {
1931                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1932                                                     hash_base=>$hb),
1933                                      -title => esc_html($name)}, esc_path($basename));
1934                        print " / ";
1935                } else {
1936                        print esc_path($basename);
1937                }
1938        }
1939        print "<br/></div>\n";
1940}
1941
1942# sub git_print_log (\@;%) {
1943sub git_print_log ($;%) {
1944        my $log = shift;
1945        my %opts = @_;
1946
1947        if ($opts{'-remove_title'}) {
1948                # remove title, i.e. first line of log
1949                shift @$log;
1950        }
1951        # remove leading empty lines
1952        while (defined $log->[0] && $log->[0] eq "") {
1953                shift @$log;
1954        }
1955
1956        # print log
1957        my $signoff = 0;
1958        my $empty = 0;
1959        foreach my $line (@$log) {
1960                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1961                        $signoff = 1;
1962                        $empty = 0;
1963                        if (! $opts{'-remove_signoff'}) {
1964                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1965                                next;
1966                        } else {
1967                                # remove signoff lines
1968                                next;
1969                        }
1970                } else {
1971                        $signoff = 0;
1972                }
1973
1974                # print only one empty line
1975                # do not print empty line after signoff
1976                if ($line eq "") {
1977                        next if ($empty || $signoff);
1978                        $empty = 1;
1979                } else {
1980                        $empty = 0;
1981                }
1982
1983                print format_log_line_html($line) . "<br/>\n";
1984        }
1985
1986        if ($opts{'-final_empty_line'}) {
1987                # end with single empty line
1988                print "<br/>\n" unless $empty;
1989        }
1990}
1991
1992# return link target (what link points to)
1993sub git_get_link_target {
1994        my $hash = shift;
1995        my $link_target;
1996
1997        # read link
1998        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
1999                or return;
2000        {
2001                local $/;
2002                $link_target = <$fd>;
2003        }
2004        close $fd
2005                or return;
2006
2007        return $link_target;
2008}
2009
2010
2011# print tree entry (row of git_tree), but without encompassing <tr> element
2012sub git_print_tree_entry {
2013        my ($t, $basedir, $hash_base, $have_blame) = @_;
2014
2015        my %base_key = ();
2016        $base_key{'hash_base'} = $hash_base if defined $hash_base;
2017
2018        # The format of a table row is: mode list link.  Where mode is
2019        # the mode of the entry, list is the name of the entry, an href,
2020        # and link is the action links of the entry.
2021
2022        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
2023        if ($t->{'type'} eq "blob") {
2024                print "<td class=\"list\">" .
2025                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2026                                               file_name=>"$basedir$t->{'name'}", %base_key),
2027                                -class => "list"}, esc_path($t->{'name'}));
2028                if (S_ISLNK(oct $t->{'mode'})) {
2029                        my $link_target = git_get_link_target($t->{'hash'});
2030                        if ($link_target) {
2031                                print " -> " . esc_path($link_target);
2032                        }
2033                }
2034                print "</td>\n";
2035                print "<td class=\"link\">";
2036                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2037                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2038                              "blob");
2039                if ($have_blame) {
2040                        print " | " .
2041                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
2042                                                     file_name=>"$basedir$t->{'name'}", %base_key)},
2043                                      "blame");
2044                }
2045                if (defined $hash_base) {
2046                        print " | " .
2047                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2048                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2049                                      "history");
2050                }
2051                print " | " .
2052                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2053                                               file_name=>"$basedir$t->{'name'}")},
2054                                "raw");
2055                print "</td>\n";
2056
2057        } elsif ($t->{'type'} eq "tree") {
2058                print "<td class=\"list\">";
2059                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2060                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2061                              esc_path($t->{'name'}));
2062                print "</td>\n";
2063                print "<td class=\"link\">";
2064                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2065                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2066                              "tree");
2067                if (defined $hash_base) {
2068                        print " | " .
2069                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2070                                                     file_name=>"$basedir$t->{'name'}")},
2071                                      "history");
2072                }
2073                print "</td>\n";
2074        }
2075}
2076
2077## ......................................................................
2078## functions printing large fragments of HTML
2079
2080sub git_difftree_body {
2081        my ($difftree, $hash, $parent) = @_;
2082        my ($have_blame) = gitweb_check_feature('blame');
2083        print "<div class=\"list_head\">\n";
2084        if ($#{$difftree} > 10) {
2085                print(($#{$difftree} + 1) . " files changed:\n");
2086        }
2087        print "</div>\n";
2088
2089        print "<table class=\"diff_tree\">\n";
2090        my $alternate = 1;
2091        my $patchno = 0;
2092        foreach my $line (@{$difftree}) {
2093                my %diff = parse_difftree_raw_line($line);
2094
2095                if ($alternate) {
2096                        print "<tr class=\"dark\">\n";
2097                } else {
2098                        print "<tr class=\"light\">\n";
2099                }
2100                $alternate ^= 1;
2101
2102                my ($to_mode_oct, $to_mode_str, $to_file_type);
2103                my ($from_mode_oct, $from_mode_str, $from_file_type);
2104                if ($diff{'to_mode'} ne ('0' x 6)) {
2105                        $to_mode_oct = oct $diff{'to_mode'};
2106                        if (S_ISREG($to_mode_oct)) { # only for regular file
2107                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2108                        }
2109                        $to_file_type = file_type($diff{'to_mode'});
2110                }
2111                if ($diff{'from_mode'} ne ('0' x 6)) {
2112                        $from_mode_oct = oct $diff{'from_mode'};
2113                        if (S_ISREG($to_mode_oct)) { # only for regular file
2114                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2115                        }
2116                        $from_file_type = file_type($diff{'from_mode'});
2117                }
2118
2119                if ($diff{'status'} eq "A") { # created
2120                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2121                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2122                        $mode_chng   .= "]</span>";
2123                        print "<td>";
2124                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2125                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2126                                      -class => "list"}, esc_path($diff{'file'}));
2127                        print "</td>\n";
2128                        print "<td>$mode_chng</td>\n";
2129                        print "<td class=\"link\">";
2130                        if ($action eq 'commitdiff') {
2131                                # link to patch
2132                                $patchno++;
2133                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2134                                print " | ";
2135                        }
2136                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2137                                                     hash_base=>$hash, file_name=>$diff{'file'})},
2138                                      "blob") . " | ";
2139                        print "</td>\n";
2140
2141                } elsif ($diff{'status'} eq "D") { # deleted
2142                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2143                        print "<td>";
2144                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2145                                                     hash_base=>$parent, file_name=>$diff{'file'}),
2146                                       -class => "list"}, esc_path($diff{'file'}));
2147                        print "</td>\n";
2148                        print "<td>$mode_chng</td>\n";
2149                        print "<td class=\"link\">";
2150                        if ($action eq 'commitdiff') {
2151                                # link to patch
2152                                $patchno++;
2153                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2154                                print " | ";
2155                        }
2156                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2157                                                     hash_base=>$parent, file_name=>$diff{'file'})},
2158                                      "blob") . " | ";
2159                        if ($have_blame) {
2160                                print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2161                                                             file_name=>$diff{'file'})},
2162                                              "blame") . " | ";
2163                        }
2164                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2165                                                     file_name=>$diff{'file'})},
2166                                      "history");
2167                        print "</td>\n";
2168
2169                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
2170                        my $mode_chnge = "";
2171                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2172                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
2173                                if ($from_file_type != $to_file_type) {
2174                                        $mode_chnge .= " from $from_file_type to $to_file_type";
2175                                }
2176                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
2177                                        if ($from_mode_str && $to_mode_str) {
2178                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2179                                        } elsif ($to_mode_str) {
2180                                                $mode_chnge .= " mode: $to_mode_str";
2181                                        }
2182                                }
2183                                $mode_chnge .= "]</span>\n";
2184                        }
2185                        print "<td>";
2186                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2187                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2188                                      -class => "list"}, esc_path($diff{'file'}));
2189                        print "</td>\n";
2190                        print "<td>$mode_chnge</td>\n";
2191                        print "<td class=\"link\">";
2192                        if ($action eq 'commitdiff') {
2193                                # link to patch
2194                                $patchno++;
2195                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2196                                      " | ";
2197                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2198                                # "commit" view and modified file (not onlu mode changed)
2199                                print $cgi->a({-href => href(action=>"blobdiff",
2200                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2201                                                             hash_base=>$hash, hash_parent_base=>$parent,
2202                                                             file_name=>$diff{'file'})},
2203                                              "diff") .
2204                                      " | ";
2205                        }
2206                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2207                                                     hash_base=>$hash, file_name=>$diff{'file'})},
2208                                       "blob") . " | ";
2209                        if ($have_blame) {
2210                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2211                                                             file_name=>$diff{'file'})},
2212                                              "blame") . " | ";
2213                        }
2214                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2215                                                     file_name=>$diff{'file'})},
2216                                      "history");
2217                        print "</td>\n";
2218
2219                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
2220                        my %status_name = ('R' => 'moved', 'C' => 'copied');
2221                        my $nstatus = $status_name{$diff{'status'}};
2222                        my $mode_chng = "";
2223                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2224                                # mode also for directories, so we cannot use $to_mode_str
2225                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2226                        }
2227                        print "<td>" .
2228                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2229                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
2230                                      -class => "list"}, esc_path($diff{'to_file'})) . "</td>\n" .
2231                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2232                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2233                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
2234                                      -class => "list"}, esc_path($diff{'from_file'})) .
2235                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2236                              "<td class=\"link\">";
2237                        if ($action eq 'commitdiff') {
2238                                # link to patch
2239                                $patchno++;
2240                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2241                                      " | ";
2242                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2243                                # "commit" view and modified file (not only pure rename or copy)
2244                                print $cgi->a({-href => href(action=>"blobdiff",
2245                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2246                                                             hash_base=>$hash, hash_parent_base=>$parent,
2247                                                             file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2248                                              "diff") .
2249                                      " | ";
2250                        }
2251                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2252                                                     hash_base=>$parent, file_name=>$diff{'to_file'})},
2253                                      "blob") . " | ";
2254                        if ($have_blame) {
2255                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2256                                                             file_name=>$diff{'to_file'})},
2257                                              "blame") . " | ";
2258                        }
2259                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2260                                                    file_name=>$diff{'to_file'})},
2261                                      "history");
2262                        print "</td>\n";
2263
2264                } # we should not encounter Unmerged (U) or Unknown (X) status
2265                print "</tr>\n";
2266        }
2267        print "</table>\n";
2268}
2269
2270sub git_patchset_body {
2271        my ($fd, $difftree, $hash, $hash_parent) = @_;
2272
2273        my $patch_idx = 0;
2274        my $patch_line;
2275        my $diffinfo;
2276        my (%from, %to);
2277        my ($from_id, $to_id);
2278
2279        print "<div class=\"patchset\">\n";
2280
2281        # skip to first patch
2282        while ($patch_line = <$fd>) {
2283                chomp $patch_line;
2284
2285                last if ($patch_line =~ m/^diff /);
2286        }
2287
2288 PATCH:
2289        while ($patch_line) {
2290                my @diff_header;
2291
2292                # git diff header
2293                #assert($patch_line =~ m/^diff /) if DEBUG;
2294                #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
2295                push @diff_header, $patch_line;
2296
2297                # extended diff header
2298        EXTENDED_HEADER:
2299                while ($patch_line = <$fd>) {
2300                        chomp $patch_line;
2301
2302                        last EXTENDED_HEADER if ($patch_line =~ m/^--- /);
2303
2304                        if ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
2305                                $from_id = $1;
2306                                $to_id   = $2;
2307                        }
2308
2309                        push @diff_header, $patch_line;
2310                }
2311                #last PATCH unless $patch_line;
2312                my $last_patch_line = $patch_line;
2313
2314                # check if current patch belong to current raw line
2315                # and parse raw git-diff line if needed
2316                if (defined $diffinfo &&
2317                    $diffinfo->{'from_id'} eq $from_id &&
2318                    $diffinfo->{'to_id'}   eq $to_id) {
2319                        # this is split patch
2320                        print "<div class=\"patch cont\">\n";
2321                } else {
2322                        # advance raw git-diff output if needed
2323                        $patch_idx++ if defined $diffinfo;
2324
2325                        # read and prepare patch information
2326                        if (ref($difftree->[$patch_idx]) eq "HASH") {
2327                                # pre-parsed (or generated by hand)
2328                                $diffinfo = $difftree->[$patch_idx];
2329                        } else {
2330                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2331                        }
2332                        $from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2333                        $to{'file'}   = $diffinfo->{'to_file'}   || $diffinfo->{'file'};
2334                        if ($diffinfo->{'status'} ne "A") { # not new (added) file
2335                                $from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2336                                                     hash=>$diffinfo->{'from_id'},
2337                                                     file_name=>$from{'file'});
2338                        }
2339                        if ($diffinfo->{'status'} ne "D") { # not deleted file
2340                                $to{'href'} = href(action=>"blob", hash_base=>$hash,
2341                                                   hash=>$diffinfo->{'to_id'},
2342                                                   file_name=>$to{'file'});
2343                        }
2344                        # this is first patch for raw difftree line with $patch_idx index
2345                        # we index @$difftree array from 0, but number patches from 1
2346                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2347                }
2348
2349                # print "git diff" header
2350                $patch_line = shift @diff_header;
2351                $patch_line =~ s!^(diff (.*?) )"?a/.*$!$1!;
2352                if ($from{'href'}) {
2353                        $patch_line .= $cgi->a({-href => $from{'href'}, -class => "path"},
2354                                               'a/' . esc_path($from{'file'}));
2355                } else { # file was added
2356                        $patch_line .= 'a/' . esc_path($from{'file'});
2357                }
2358                $patch_line .= ' ';
2359                if ($to{'href'}) {
2360                        $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2361                                               'b/' . esc_path($to{'file'}));
2362                } else { # file was deleted
2363                        $patch_line .= 'b/' . esc_path($to{'file'});
2364                }
2365                print "<div class=\"diff header\">$patch_line</div>\n";
2366
2367                # print extended diff header
2368                print "<div class=\"diff extended_header\">\n" if (@diff_header > 0);
2369        EXTENDED_HEADER:
2370                foreach $patch_line (@diff_header) {
2371                        # match <path>
2372                        if ($patch_line =~ s!^((copy|rename) from ).*$!$1! && $from{'href'}) {
2373                                $patch_line .= $cgi->a({-href=>$from{'href'}, -class=>"path"},
2374                                                        esc_path($from{'file'}));
2375                        }
2376                        if ($patch_line =~ s!^((copy|rename) to ).*$!$1! && $to{'href'}) {
2377                                $patch_line = $cgi->a({-href=>$to{'href'}, -class=>"path"},
2378                                                      esc_path($to{'file'}));
2379                        }
2380                        # match <mode>
2381                        if ($patch_line =~ m/\s(\d{6})$/) {
2382                                $patch_line .= '<span class="info"> (' .
2383                                               file_type_long($1) .
2384                                               ')</span>';
2385                        }
2386                        # match <hash>
2387                        if ($patch_line =~ m/^index/) {
2388                                my ($from_link, $to_link);
2389                                if ($from{'href'}) {
2390                                        $from_link = $cgi->a({-href=>$from{'href'}, -class=>"hash"},
2391                                                             substr($diffinfo->{'from_id'},0,7));
2392                                } else {
2393                                        $from_link = '0' x 7;
2394                                }
2395                                if ($to{'href'}) {
2396                                        $to_link = $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2397                                                           substr($diffinfo->{'to_id'},0,7));
2398                                } else {
2399                                        $to_link = '0' x 7;
2400                                }
2401                                #affirm {
2402                                #       my ($from_hash, $to_hash) =
2403                                #               ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/);
2404                                #       my ($from_id, $to_id) =
2405                                #               ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2406                                #       ($from_hash eq $from_id) && ($to_hash eq $to_id);
2407                                #} if DEBUG;
2408                                my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2409                                $patch_line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
2410                        }
2411                        print $patch_line . "<br/>\n";
2412                }
2413                print "</div>\n"  if (@diff_header > 0); # class="diff extended_header"
2414
2415                # from-file/to-file diff header
2416                $patch_line = $last_patch_line;
2417                #assert($patch_line =~ m/^---/) if DEBUG;
2418                if ($from{'href'}) {
2419                        $patch_line = '--- a/' .
2420                                      $cgi->a({-href=>$from{'href'}, -class=>"path"},
2421                                              esc_path($from{'file'}));
2422                }
2423                print "<div class=\"diff from_file\">$patch_line</div>\n";
2424
2425                $patch_line = <$fd>;
2426                #last PATCH unless $patch_line;
2427                chomp $patch_line;
2428
2429                #assert($patch_line =~ m/^+++/) if DEBUG;
2430                if ($to{'href'}) {
2431                        $patch_line = '+++ b/' .
2432                                      $cgi->a({-href=>$to{'href'}, -class=>"path"},
2433                                              esc_path($to{'file'}));
2434                }
2435                print "<div class=\"diff to_file\">$patch_line</div>\n";
2436
2437                # the patch itself
2438        LINE:
2439                while ($patch_line = <$fd>) {
2440                        chomp $patch_line;
2441
2442                        next PATCH if ($patch_line =~ m/^diff /);
2443
2444                        print format_diff_line($patch_line, \%from, \%to);
2445                }
2446
2447        } continue {
2448                print "</div>\n"; # class="patch"
2449        }
2450
2451        print "</div>\n"; # class="patchset"
2452}
2453
2454# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2455
2456sub git_project_list_body {
2457        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2458
2459        my ($check_forks) = gitweb_check_feature('forks');
2460
2461        my @projects;
2462        foreach my $pr (@$projlist) {
2463                my (@aa) = git_get_last_activity($pr->{'path'});
2464                unless (@aa) {
2465                        next;
2466                }
2467                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2468                if (!defined $pr->{'descr'}) {
2469                        my $descr = git_get_project_description($pr->{'path'}) || "";
2470                        $pr->{'descr_long'} = to_utf8($descr);
2471                        $pr->{'descr'} = chop_str($descr, 25, 5);
2472                }
2473                if (!defined $pr->{'owner'}) {
2474                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2475                }
2476                if ($check_forks) {
2477                        my $pname = $pr->{'path'};
2478                        if (($pname =~ s/\.git$//) &&
2479                            ($pname !~ /\/$/) &&
2480                            (-d "$projectroot/$pname")) {
2481                                $pr->{'forks'} = "-d $projectroot/$pname";
2482                        }
2483                        else {
2484                                $pr->{'forks'} = 0;
2485                        }
2486                }
2487                push @projects, $pr;
2488        }
2489
2490        $order ||= "project";
2491        $from = 0 unless defined $from;
2492        $to = $#projects if (!defined $to || $#projects < $to);
2493
2494        print "<table class=\"project_list\">\n";
2495        unless ($no_header) {
2496                print "<tr>\n";
2497                if ($check_forks) {
2498                        print "<th></th>\n";
2499                }
2500                if ($order eq "project") {
2501                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2502                        print "<th>Project</th>\n";
2503                } else {
2504                        print "<th>" .
2505                              $cgi->a({-href => href(project=>undef, order=>'project'),
2506                                       -class => "header"}, "Project") .
2507                              "</th>\n";
2508                }
2509                if ($order eq "descr") {
2510                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2511                        print "<th>Description</th>\n";
2512                } else {
2513                        print "<th>" .
2514                              $cgi->a({-href => href(project=>undef, order=>'descr'),
2515                                       -class => "header"}, "Description") .
2516                              "</th>\n";
2517                }
2518                if ($order eq "owner") {
2519                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2520                        print "<th>Owner</th>\n";
2521                } else {
2522                        print "<th>" .
2523                              $cgi->a({-href => href(project=>undef, order=>'owner'),
2524                                       -class => "header"}, "Owner") .
2525                              "</th>\n";
2526                }
2527                if ($order eq "age") {
2528                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2529                        print "<th>Last Change</th>\n";
2530                } else {
2531                        print "<th>" .
2532                              $cgi->a({-href => href(project=>undef, order=>'age'),
2533                                       -class => "header"}, "Last Change") .
2534                              "</th>\n";
2535                }
2536                print "<th></th>\n" .
2537                      "</tr>\n";
2538        }
2539        my $alternate = 1;
2540        for (my $i = $from; $i <= $to; $i++) {
2541                my $pr = $projects[$i];
2542                if ($alternate) {
2543                        print "<tr class=\"dark\">\n";
2544                } else {
2545                        print "<tr class=\"light\">\n";
2546                }
2547                $alternate ^= 1;
2548                if ($check_forks) {
2549                        print "<td>";
2550                        if ($pr->{'forks'}) {
2551                                print "<!-- $pr->{'forks'} -->\n";
2552                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2553                        }
2554                        print "</td>\n";
2555                }
2556                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2557                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2558                      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2559                                        -class => "list", -title => $pr->{'descr_long'}},
2560                                        esc_html($pr->{'descr'})) . "</td>\n" .
2561                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2562                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2563                      $pr->{'age_string'} . "</td>\n" .
2564                      "<td class=\"link\">" .
2565                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2566                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2567                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2568                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2569                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
2570                      "</td>\n" .
2571                      "</tr>\n";
2572        }
2573        if (defined $extra) {
2574                print "<tr>\n";
2575                if ($check_forks) {
2576                        print "<td></td>\n";
2577                }
2578                print "<td colspan=\"5\">$extra</td>\n" .
2579                      "</tr>\n";
2580        }
2581        print "</table>\n";
2582}
2583
2584sub git_shortlog_body {
2585        # uses global variable $project
2586        my ($revlist, $from, $to, $refs, $extra) = @_;
2587
2588        $from = 0 unless defined $from;
2589        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2590
2591        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2592        my $alternate = 1;
2593        for (my $i = $from; $i <= $to; $i++) {
2594                my $commit = $revlist->[$i];
2595                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2596                my $ref = format_ref_marker($refs, $commit);
2597                my %co = parse_commit($commit);
2598                if ($alternate) {
2599                        print "<tr class=\"dark\">\n";
2600                } else {
2601                        print "<tr class=\"light\">\n";
2602                }
2603                $alternate ^= 1;
2604                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2605                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2606                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2607                      "<td>";
2608                print format_subject_html($co{'title'}, $co{'title_short'},
2609                                          href(action=>"commit", hash=>$commit), $ref);
2610                print "</td>\n" .
2611                      "<td class=\"link\">" .
2612                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2613                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2614                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2615                if (gitweb_have_snapshot()) {
2616                        print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2617                }
2618                print "</td>\n" .
2619                      "</tr>\n";
2620        }
2621        if (defined $extra) {
2622                print "<tr>\n" .
2623                      "<td colspan=\"4\">$extra</td>\n" .
2624                      "</tr>\n";
2625        }
2626        print "</table>\n";
2627}
2628
2629sub git_history_body {
2630        # Warning: assumes constant type (blob or tree) during history
2631        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2632
2633        $from = 0 unless defined $from;
2634        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2635
2636        print "<table class=\"history\" cellspacing=\"0\">\n";
2637        my $alternate = 1;
2638        for (my $i = $from; $i <= $to; $i++) {
2639                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2640                        next;
2641                }
2642
2643                my $commit = $1;
2644                my %co = parse_commit($commit);
2645                if (!%co) {
2646                        next;
2647                }
2648
2649                my $ref = format_ref_marker($refs, $commit);
2650
2651                if ($alternate) {
2652                        print "<tr class=\"dark\">\n";
2653                } else {
2654                        print "<tr class=\"light\">\n";
2655                }
2656                $alternate ^= 1;
2657                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2658                      # shortlog uses      chop_str($co{'author_name'}, 10)
2659                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2660                      "<td>";
2661                # originally git_history used chop_str($co{'title'}, 50)
2662                print format_subject_html($co{'title'}, $co{'title_short'},
2663                                          href(action=>"commit", hash=>$commit), $ref);
2664                print "</td>\n" .
2665                      "<td class=\"link\">" .
2666                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2667                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2668
2669                if ($ftype eq 'blob') {
2670                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2671                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2672                        if (defined $blob_current && defined $blob_parent &&
2673                                        $blob_current ne $blob_parent) {
2674                                print " | " .
2675                                        $cgi->a({-href => href(action=>"blobdiff",
2676                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2677                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2678                                                               file_name=>$file_name)},
2679                                                "diff to current");
2680                        }
2681                }
2682                print "</td>\n" .
2683                      "</tr>\n";
2684        }
2685        if (defined $extra) {
2686                print "<tr>\n" .
2687                      "<td colspan=\"4\">$extra</td>\n" .
2688                      "</tr>\n";
2689        }
2690        print "</table>\n";
2691}
2692
2693sub git_tags_body {
2694        # uses global variable $project
2695        my ($taglist, $from, $to, $extra) = @_;
2696        $from = 0 unless defined $from;
2697        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2698
2699        print "<table class=\"tags\" cellspacing=\"0\">\n";
2700        my $alternate = 1;
2701        for (my $i = $from; $i <= $to; $i++) {
2702                my $entry = $taglist->[$i];
2703                my %tag = %$entry;
2704                my $comment = $tag{'subject'};
2705                my $comment_short;
2706                if (defined $comment) {
2707                        $comment_short = chop_str($comment, 30, 5);
2708                }
2709                if ($alternate) {
2710                        print "<tr class=\"dark\">\n";
2711                } else {
2712                        print "<tr class=\"light\">\n";
2713                }
2714                $alternate ^= 1;
2715                print "<td><i>$tag{'age'}</i></td>\n" .
2716                      "<td>" .
2717                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2718                               -class => "list name"}, esc_html($tag{'name'})) .
2719                      "</td>\n" .
2720                      "<td>";
2721                if (defined $comment) {
2722                        print format_subject_html($comment, $comment_short,
2723                                                  href(action=>"tag", hash=>$tag{'id'}));
2724                }
2725                print "</td>\n" .
2726                      "<td class=\"selflink\">";
2727                if ($tag{'type'} eq "tag") {
2728                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2729                } else {
2730                        print "&nbsp;";
2731                }
2732                print "</td>\n" .
2733                      "<td class=\"link\">" . " | " .
2734                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2735                if ($tag{'reftype'} eq "commit") {
2736                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2737                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
2738                } elsif ($tag{'reftype'} eq "blob") {
2739                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2740                }
2741                print "</td>\n" .
2742                      "</tr>";
2743        }
2744        if (defined $extra) {
2745                print "<tr>\n" .
2746                      "<td colspan=\"5\">$extra</td>\n" .
2747                      "</tr>\n";
2748        }
2749        print "</table>\n";
2750}
2751
2752sub git_heads_body {
2753        # uses global variable $project
2754        my ($headlist, $head, $from, $to, $extra) = @_;
2755        $from = 0 unless defined $from;
2756        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2757
2758        print "<table class=\"heads\" cellspacing=\"0\">\n";
2759        my $alternate = 1;
2760        for (my $i = $from; $i <= $to; $i++) {
2761                my $entry = $headlist->[$i];
2762                my %ref = %$entry;
2763                my $curr = $ref{'id'} eq $head;
2764                if ($alternate) {
2765                        print "<tr class=\"dark\">\n";
2766                } else {
2767                        print "<tr class=\"light\">\n";
2768                }
2769                $alternate ^= 1;
2770                print "<td><i>$ref{'age'}</i></td>\n" .
2771                      ($curr ? "<td class=\"current_head\">" : "<td>") .
2772                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
2773                               -class => "list name"},esc_html($ref{'name'})) .
2774                      "</td>\n" .
2775                      "<td class=\"link\">" .
2776                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
2777                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
2778                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
2779                      "</td>\n" .
2780                      "</tr>";
2781        }
2782        if (defined $extra) {
2783                print "<tr>\n" .
2784                      "<td colspan=\"3\">$extra</td>\n" .
2785                      "</tr>\n";
2786        }
2787        print "</table>\n";
2788}
2789
2790## ======================================================================
2791## ======================================================================
2792## actions
2793
2794sub git_project_list {
2795        my $order = $cgi->param('o');
2796        if (defined $order && $order !~ m/project|descr|owner|age/) {
2797                die_error(undef, "Unknown order parameter");
2798        }
2799
2800        my @list = git_get_projects_list();
2801        if (!@list) {
2802                die_error(undef, "No projects found");
2803        }
2804
2805        git_header_html();
2806        if (-f $home_text) {
2807                print "<div class=\"index_include\">\n";
2808                open (my $fd, $home_text);
2809                print <$fd>;
2810                close $fd;
2811                print "</div>\n";
2812        }
2813        git_project_list_body(\@list, $order);
2814        git_footer_html();
2815}
2816
2817sub git_forks {
2818        my $order = $cgi->param('o');
2819        if (defined $order && $order !~ m/project|descr|owner|age/) {
2820                die_error(undef, "Unknown order parameter");
2821        }
2822
2823        my @list = git_get_projects_list($project);
2824        if (!@list) {
2825                die_error(undef, "No forks found");
2826        }
2827
2828        git_header_html();
2829        git_print_page_nav('','');
2830        git_print_header_div('summary', "$project forks");
2831        git_project_list_body(\@list, $order);
2832        git_footer_html();
2833}
2834
2835sub git_project_index {
2836        my @projects = git_get_projects_list($project);
2837
2838        print $cgi->header(
2839                -type => 'text/plain',
2840                -charset => 'utf-8',
2841                -content_disposition => 'inline; filename="index.aux"');
2842
2843        foreach my $pr (@projects) {
2844                if (!exists $pr->{'owner'}) {
2845                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2846                }
2847
2848                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2849                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2850                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2851                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2852                $path  =~ s/ /\+/g;
2853                $owner =~ s/ /\+/g;
2854
2855                print "$path $owner\n";
2856        }
2857}
2858
2859sub git_summary {
2860        my $descr = git_get_project_description($project) || "none";
2861        my $head = git_get_head_hash($project);
2862        my %co = parse_commit($head);
2863        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2864
2865        my $owner = git_get_project_owner($project);
2866
2867        my $refs = git_get_references();
2868        my @taglist  = git_get_tags_list(15);
2869        my @headlist = git_get_heads_list(15);
2870        my @forklist;
2871        my ($check_forks) = gitweb_check_feature('forks');
2872
2873        if ($check_forks) {
2874                @forklist = git_get_projects_list($project);
2875        }
2876
2877        git_header_html();
2878        git_print_page_nav('summary','', $head);
2879
2880        print "<div class=\"title\">&nbsp;</div>\n";
2881        print "<table cellspacing=\"0\">\n" .
2882              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2883              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2884              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2885        # use per project git URL list in $projectroot/$project/cloneurl
2886        # or make project git URL from git base URL and project name
2887        my $url_tag = "URL";
2888        my @url_list = git_get_project_url_list($project);
2889        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2890        foreach my $git_url (@url_list) {
2891                next unless $git_url;
2892                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2893                $url_tag = "";
2894        }
2895        print "</table>\n";
2896
2897        if (-s "$projectroot/$project/README.html") {
2898                if (open my $fd, "$projectroot/$project/README.html") {
2899                        print "<div class=\"title\">readme</div>\n";
2900                        print $_ while (<$fd>);
2901                        close $fd;
2902                }
2903        }
2904
2905        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2906                git_get_head_hash($project), "--"
2907                or die_error(undef, "Open git-rev-list failed");
2908        my @revlist = map { chomp; $_ } <$fd>;
2909        close $fd;
2910        git_print_header_div('shortlog');
2911        git_shortlog_body(\@revlist, 0, 15, $refs,
2912                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2913
2914        if (@taglist) {
2915                git_print_header_div('tags');
2916                git_tags_body(\@taglist, 0, 15,
2917                              $cgi->a({-href => href(action=>"tags")}, "..."));
2918        }
2919
2920        if (@headlist) {
2921                git_print_header_div('heads');
2922                git_heads_body(\@headlist, $head, 0, 15,
2923                               $cgi->a({-href => href(action=>"heads")}, "..."));
2924        }
2925
2926        if (@forklist) {
2927                git_print_header_div('forks');
2928                git_project_list_body(\@forklist, undef, 0, 15,
2929                                      $cgi->a({-href => href(action=>"forks")}, "..."),
2930                                      'noheader');
2931        }
2932
2933        git_footer_html();
2934}
2935
2936sub git_tag {
2937        my $head = git_get_head_hash($project);
2938        git_header_html();
2939        git_print_page_nav('','', $head,undef,$head);
2940        my %tag = parse_tag($hash);
2941        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2942        print "<div class=\"title_text\">\n" .
2943              "<table cellspacing=\"0\">\n" .
2944              "<tr>\n" .
2945              "<td>object</td>\n" .
2946              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2947                               $tag{'object'}) . "</td>\n" .
2948              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2949                                              $tag{'type'}) . "</td>\n" .
2950              "</tr>\n";
2951        if (defined($tag{'author'})) {
2952                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2953                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2954                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2955                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2956                        "</td></tr>\n";
2957        }
2958        print "</table>\n\n" .
2959              "</div>\n";
2960        print "<div class=\"page_body\">";
2961        my $comment = $tag{'comment'};
2962        foreach my $line (@$comment) {
2963                chomp $line;
2964                print esc_html($line, -nbsp=>1) . "<br/>\n";
2965        }
2966        print "</div>\n";
2967        git_footer_html();
2968}
2969
2970sub git_blame2 {
2971        my $fd;
2972        my $ftype;
2973
2974        my ($have_blame) = gitweb_check_feature('blame');
2975        if (!$have_blame) {
2976                die_error('403 Permission denied', "Permission denied");
2977        }
2978        die_error('404 Not Found', "File name not defined") if (!$file_name);
2979        $hash_base ||= git_get_head_hash($project);
2980        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2981        my %co = parse_commit($hash_base)
2982                or die_error(undef, "Reading commit failed");
2983        if (!defined $hash) {
2984                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2985                        or die_error(undef, "Error looking up file");
2986        }
2987        $ftype = git_get_type($hash);
2988        if ($ftype !~ "blob") {
2989                die_error("400 Bad Request", "Object is not a blob");
2990        }
2991        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
2992              $file_name, $hash_base)
2993                or die_error(undef, "Open git-blame failed");
2994        git_header_html();
2995        my $formats_nav =
2996                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2997                        "blob") .
2998                " | " .
2999                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3000                        "history") .
3001                " | " .
3002                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3003                        "HEAD");
3004        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3005        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3006        git_print_page_path($file_name, $ftype, $hash_base);
3007        my @rev_color = (qw(light2 dark2));
3008        my $num_colors = scalar(@rev_color);
3009        my $current_color = 0;
3010        my $last_rev;
3011        print <<HTML;
3012<div class="page_body">
3013<table class="blame">
3014<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
3015HTML
3016        my %metainfo = ();
3017        while (1) {
3018                $_ = <$fd>;
3019                last unless defined $_;
3020                my ($full_rev, $orig_lineno, $lineno, $group_size) =
3021                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
3022                if (!exists $metainfo{$full_rev}) {
3023                        $metainfo{$full_rev} = {};
3024                }
3025                my $meta = $metainfo{$full_rev};
3026                while (<$fd>) {
3027                        last if (s/^\t//);
3028                        if (/^(\S+) (.*)$/) {
3029                                $meta->{$1} = $2;
3030                        }
3031                }
3032                my $data = $_;
3033                chomp $data;
3034                my $rev = substr($full_rev, 0, 8);
3035                my $author = $meta->{'author'};
3036                my %date = parse_date($meta->{'author-time'},
3037                                      $meta->{'author-tz'});
3038                my $date = $date{'iso-tz'};
3039                if ($group_size) {
3040                        $current_color = ++$current_color % $num_colors;
3041                }
3042                print "<tr class=\"$rev_color[$current_color]\">\n";
3043                if ($group_size) {
3044                        print "<td class=\"sha1\"";
3045                        print " title=\"". esc_html($author) . ", $date\"";
3046                        print " rowspan=\"$group_size\"" if ($group_size > 1);
3047                        print ">";
3048                        print $cgi->a({-href => href(action=>"commit",
3049                                                     hash=>$full_rev,
3050                                                     file_name=>$file_name)},
3051                                      esc_html($rev));
3052                        print "</td>\n";
3053                }
3054                my $blamed = href(action => 'blame',
3055                                  file_name => $meta->{'filename'},
3056                                  hash_base => $full_rev);
3057                print "<td class=\"linenr\">";
3058                print $cgi->a({ -href => "$blamed#l$orig_lineno",
3059                                -id => "l$lineno",
3060                                -class => "linenr" },
3061                              esc_html($lineno));
3062                print "</td>";
3063                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
3064                print "</tr>\n";
3065        }
3066        print "</table>\n";
3067        print "</div>";
3068        close $fd
3069                or print "Reading blob failed\n";
3070        git_footer_html();
3071}
3072
3073sub git_blame {
3074        my $fd;
3075
3076        my ($have_blame) = gitweb_check_feature('blame');
3077        if (!$have_blame) {
3078                die_error('403 Permission denied', "Permission denied");
3079        }
3080        die_error('404 Not Found', "File name not defined") if (!$file_name);
3081        $hash_base ||= git_get_head_hash($project);
3082        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3083        my %co = parse_commit($hash_base)
3084                or die_error(undef, "Reading commit failed");
3085        if (!defined $hash) {
3086                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3087                        or die_error(undef, "Error lookup file");
3088        }
3089        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
3090                or die_error(undef, "Open git-annotate failed");
3091        git_header_html();
3092        my $formats_nav =
3093                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3094                        "blob") .
3095                " | " .
3096                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3097                        "history") .
3098                " | " .
3099                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3100                        "HEAD");
3101        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3102        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3103        git_print_page_path($file_name, 'blob', $hash_base);
3104        print "<div class=\"page_body\">\n";
3105        print <<HTML;
3106<table class="blame">
3107  <tr>
3108    <th>Commit</th>
3109    <th>Age</th>
3110    <th>Author</th>
3111    <th>Line</th>
3112    <th>Data</th>
3113  </tr>
3114HTML
3115        my @line_class = (qw(light dark));
3116        my $line_class_len = scalar (@line_class);
3117        my $line_class_num = $#line_class;
3118        while (my $line = <$fd>) {
3119                my $long_rev;
3120                my $short_rev;
3121                my $author;
3122                my $time;
3123                my $lineno;
3124                my $data;
3125                my $age;
3126                my $age_str;
3127                my $age_class;
3128
3129                chomp $line;
3130                $line_class_num = ($line_class_num + 1) % $line_class_len;
3131
3132                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
3133                        $long_rev = $1;
3134                        $author   = $2;
3135                        $time     = $3;
3136                        $lineno   = $4;
3137                        $data     = $5;
3138                } else {
3139                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
3140                        next;
3141                }
3142                $short_rev  = substr ($long_rev, 0, 8);
3143                $age        = time () - $time;
3144                $age_str    = age_string ($age);
3145                $age_str    =~ s/ /&nbsp;/g;
3146                $age_class  = age_class($age);
3147                $author     = esc_html ($author);
3148                $author     =~ s/ /&nbsp;/g;
3149
3150                $data = untabify($data);
3151                $data = esc_html ($data);
3152
3153                print <<HTML;
3154  <tr class="$line_class[$line_class_num]">
3155    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
3156    <td class="$age_class">$age_str</td>
3157    <td>$author</td>
3158    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
3159    <td class="pre">$data</td>
3160  </tr>
3161HTML
3162        } # while (my $line = <$fd>)
3163        print "</table>\n\n";
3164        close $fd
3165                or print "Reading blob failed.\n";
3166        print "</div>";
3167        git_footer_html();
3168}
3169
3170sub git_tags {
3171        my $head = git_get_head_hash($project);
3172        git_header_html();
3173        git_print_page_nav('','', $head,undef,$head);
3174        git_print_header_div('summary', $project);
3175
3176        my @tagslist = git_get_tags_list();
3177        if (@tagslist) {
3178                git_tags_body(\@tagslist);
3179        }
3180        git_footer_html();
3181}
3182
3183sub git_heads {
3184        my $head = git_get_head_hash($project);
3185        git_header_html();
3186        git_print_page_nav('','', $head,undef,$head);
3187        git_print_header_div('summary', $project);
3188
3189        my @headslist = git_get_heads_list();
3190        if (@headslist) {
3191                git_heads_body(\@headslist, $head);
3192        }
3193        git_footer_html();
3194}
3195
3196sub git_blob_plain {
3197        my $expires;
3198
3199        if (!defined $hash) {
3200                if (defined $file_name) {
3201                        my $base = $hash_base || git_get_head_hash($project);
3202                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3203                                or die_error(undef, "Error lookup file");
3204                } else {
3205                        die_error(undef, "No file name defined");
3206                }
3207        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3208                # blobs defined by non-textual hash id's can be cached
3209                $expires = "+1d";
3210        }
3211
3212        my $type = shift;
3213        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3214                or die_error(undef, "Couldn't cat $file_name, $hash");
3215
3216        $type ||= blob_mimetype($fd, $file_name);
3217
3218        # save as filename, even when no $file_name is given
3219        my $save_as = "$hash";
3220        if (defined $file_name) {
3221                $save_as = $file_name;
3222        } elsif ($type =~ m/^text\//) {
3223                $save_as .= '.txt';
3224        }
3225
3226        print $cgi->header(
3227                -type => "$type",
3228                -expires=>$expires,
3229                -content_disposition => 'inline; filename="' . "$save_as" . '"');
3230        undef $/;
3231        binmode STDOUT, ':raw';
3232        print <$fd>;
3233        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3234        $/ = "\n";
3235        close $fd;
3236}
3237
3238sub git_blob {
3239        my $expires;
3240
3241        if (!defined $hash) {
3242                if (defined $file_name) {
3243                        my $base = $hash_base || git_get_head_hash($project);
3244                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3245                                or die_error(undef, "Error lookup file");
3246                } else {
3247                        die_error(undef, "No file name defined");
3248                }
3249        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3250                # blobs defined by non-textual hash id's can be cached
3251                $expires = "+1d";
3252        }
3253
3254        my ($have_blame) = gitweb_check_feature('blame');
3255        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3256                or die_error(undef, "Couldn't cat $file_name, $hash");
3257        my $mimetype = blob_mimetype($fd, $file_name);
3258        if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)!) {
3259                close $fd;
3260                return git_blob_plain($mimetype);
3261        }
3262        # we can have blame only for text/* mimetype
3263        $have_blame &&= ($mimetype =~ m!^text/!);
3264
3265        git_header_html(undef, $expires);
3266        my $formats_nav = '';
3267        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3268                if (defined $file_name) {
3269                        if ($have_blame) {
3270                                $formats_nav .=
3271                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3272                                                               hash=>$hash, file_name=>$file_name)},
3273                                                "blame") .
3274                                        " | ";
3275                        }
3276                        $formats_nav .=
3277                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3278                                                       hash=>$hash, file_name=>$file_name)},
3279                                        "history") .
3280                                " | " .
3281                                $cgi->a({-href => href(action=>"blob_plain",
3282                                                       hash=>$hash, file_name=>$file_name)},
3283                                        "raw") .
3284                                " | " .
3285                                $cgi->a({-href => href(action=>"blob",
3286                                                       hash_base=>"HEAD", file_name=>$file_name)},
3287                                        "HEAD");
3288                } else {
3289                        $formats_nav .=
3290                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3291                }
3292                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3293                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3294        } else {
3295                print "<div class=\"page_nav\">\n" .
3296                      "<br/><br/></div>\n" .
3297                      "<div class=\"title\">$hash</div>\n";
3298        }
3299        git_print_page_path($file_name, "blob", $hash_base);
3300        print "<div class=\"page_body\">\n";
3301        if ($mimetype =~ m!^text/!) {
3302                my $nr;
3303                while (my $line = <$fd>) {
3304                        chomp $line;
3305                        $nr++;
3306                        $line = untabify($line);
3307                        printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3308                               $nr, $nr, $nr, esc_html($line, -nbsp=>1);
3309                }
3310        } elsif ($mimetype =~ m!^image/!) {
3311                print qq!<img type="$mimetype"!;
3312                if ($file_name) {
3313                        print qq! alt="$file_name" title="$file_name"!;
3314                }
3315                print qq! src="! .
3316                      href(action=>"blob_plain", hash=>$hash,
3317                           hash_base=>$hash_base, file_name=>$file_name) .
3318                      qq!" />\n!;
3319        }
3320        close $fd
3321                or print "Reading blob failed.\n";
3322        print "</div>";
3323        git_footer_html();
3324}
3325
3326sub git_tree {
3327        my $have_snapshot = gitweb_have_snapshot();
3328
3329        if (!defined $hash_base) {
3330                $hash_base = "HEAD";
3331        }
3332        if (!defined $hash) {
3333                if (defined $file_name) {
3334                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3335                } else {
3336                        $hash = $hash_base;
3337                }
3338        }
3339        $/ = "\0";
3340        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3341                or die_error(undef, "Open git-ls-tree failed");
3342        my @entries = map { chomp; $_ } <$fd>;
3343        close $fd or die_error(undef, "Reading tree failed");
3344        $/ = "\n";
3345
3346        my $refs = git_get_references();
3347        my $ref = format_ref_marker($refs, $hash_base);
3348        git_header_html();
3349        my $basedir = '';
3350        my ($have_blame) = gitweb_check_feature('blame');
3351        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3352                my @views_nav = ();
3353                if (defined $file_name) {
3354                        push @views_nav,
3355                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3356                                                       hash=>$hash, file_name=>$file_name)},
3357                                        "history"),
3358                                $cgi->a({-href => href(action=>"tree",
3359                                                       hash_base=>"HEAD", file_name=>$file_name)},
3360                                        "HEAD"),
3361                }
3362                if ($have_snapshot) {
3363                        # FIXME: Should be available when we have no hash base as well.
3364                        push @views_nav,
3365                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3366                                        "snapshot");
3367                }
3368                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3369                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3370        } else {
3371                undef $hash_base;
3372                print "<div class=\"page_nav\">\n";
3373                print "<br/><br/></div>\n";
3374                print "<div class=\"title\">$hash</div>\n";
3375        }
3376        if (defined $file_name) {
3377                $basedir = $file_name;
3378                if ($basedir ne '' && substr($basedir, -1) ne '/') {
3379                        $basedir .= '/';
3380                }
3381        }
3382        git_print_page_path($file_name, 'tree', $hash_base);
3383        print "<div class=\"page_body\">\n";
3384        print "<table cellspacing=\"0\">\n";
3385        my $alternate = 1;
3386        # '..' (top directory) link if possible
3387        if (defined $hash_base &&
3388            defined $file_name && $file_name =~ m![^/]+$!) {
3389                if ($alternate) {
3390                        print "<tr class=\"dark\">\n";
3391                } else {
3392                        print "<tr class=\"light\">\n";
3393                }
3394                $alternate ^= 1;
3395
3396                my $up = $file_name;
3397                $up =~ s!/?[^/]+$!!;
3398                undef $up unless $up;
3399                # based on git_print_tree_entry
3400                print '<td class="mode">' . mode_str('040000') . "</td>\n";
3401                print '<td class="list">';
3402                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3403                                             file_name=>$up)},
3404                              "..");
3405                print "</td>\n";
3406                print "<td class=\"link\"></td>\n";
3407
3408                print "</tr>\n";
3409        }
3410        foreach my $line (@entries) {
3411                my %t = parse_ls_tree_line($line, -z => 1);
3412
3413                if ($alternate) {
3414                        print "<tr class=\"dark\">\n";
3415                } else {
3416                        print "<tr class=\"light\">\n";
3417                }
3418                $alternate ^= 1;
3419
3420                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3421
3422                print "</tr>\n";
3423        }
3424        print "</table>\n" .
3425              "</div>";
3426        git_footer_html();
3427}
3428
3429sub git_snapshot {
3430        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3431        my $have_snapshot = (defined $ctype && defined $suffix);
3432        if (!$have_snapshot) {
3433                die_error('403 Permission denied', "Permission denied");
3434        }
3435
3436        if (!defined $hash) {
3437                $hash = git_get_head_hash($project);
3438        }
3439
3440        my $filename = basename($project) . "-$hash.tar.$suffix";
3441
3442        print $cgi->header(
3443                -type => "application/$ctype",
3444                -content_disposition => 'inline; filename="' . "$filename" . '"',
3445                -status => '200 OK');
3446
3447        my $git = git_cmd_str();
3448        my $name = $project;
3449        $name =~ s/\047/\047\\\047\047/g;
3450        open my $fd, "-|",
3451        "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3452                or die_error(undef, "Execute git-tar-tree failed.");
3453        binmode STDOUT, ':raw';
3454        print <$fd>;
3455        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3456        close $fd;
3457
3458}
3459
3460sub git_log {
3461        my $head = git_get_head_hash($project);
3462        if (!defined $hash) {
3463                $hash = $head;
3464        }
3465        if (!defined $page) {
3466                $page = 0;
3467        }
3468        my $refs = git_get_references();
3469
3470        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3471        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
3472                or die_error(undef, "Open git-rev-list failed");
3473        my @revlist = map { chomp; $_ } <$fd>;
3474        close $fd;
3475
3476        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3477
3478        git_header_html();
3479        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3480
3481        if (!@revlist) {
3482                my %co = parse_commit($hash);
3483
3484                git_print_header_div('summary', $project);
3485                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3486        }
3487        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3488                my $commit = $revlist[$i];
3489                my $ref = format_ref_marker($refs, $commit);
3490                my %co = parse_commit($commit);
3491                next if !%co;
3492                my %ad = parse_date($co{'author_epoch'});
3493                git_print_header_div('commit',
3494                               "<span class=\"age\">$co{'age_string'}</span>" .
3495                               esc_html($co{'title'}) . $ref,
3496                               $commit);
3497                print "<div class=\"title_text\">\n" .
3498                      "<div class=\"log_link\">\n" .
3499                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3500                      " | " .
3501                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3502                      " | " .
3503                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3504                      "<br/>\n" .
3505                      "</div>\n" .
3506                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3507                      "</div>\n";
3508
3509                print "<div class=\"log_body\">\n";
3510                git_print_log($co{'comment'}, -final_empty_line=> 1);
3511                print "</div>\n";
3512        }
3513        git_footer_html();
3514}
3515
3516sub git_commit {
3517        $hash ||= $hash_base || "HEAD";
3518        my %co = parse_commit($hash);
3519        if (!%co) {
3520                die_error(undef, "Unknown commit object");
3521        }
3522        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3523        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3524
3525        my $parent = $co{'parent'};
3526        if (!defined $parent) {
3527                $parent = "--root";
3528        }
3529        open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
3530                @diff_opts, $parent, $hash, "--"
3531                or die_error(undef, "Open git-diff-tree failed");
3532        my @difftree = map { chomp; $_ } <$fd>;
3533        close $fd or die_error(undef, "Reading git-diff-tree failed");
3534
3535        # non-textual hash id's can be cached
3536        my $expires;
3537        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3538                $expires = "+1d";
3539        }
3540        my $refs = git_get_references();
3541        my $ref = format_ref_marker($refs, $co{'id'});
3542
3543        my $have_snapshot = gitweb_have_snapshot();
3544
3545        my @views_nav = ();
3546        if (defined $file_name && defined $co{'parent'}) {
3547                push @views_nav,
3548                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3549                                "blame");
3550        }
3551        git_header_html(undef, $expires);
3552        git_print_page_nav('commit', '',
3553                           $hash, $co{'tree'}, $hash,
3554                           join (' | ', @views_nav));
3555
3556        if (defined $co{'parent'}) {
3557                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3558        } else {
3559                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3560        }
3561        print "<div class=\"title_text\">\n" .
3562              "<table cellspacing=\"0\">\n";
3563        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3564              "<tr>" .
3565              "<td></td><td> $ad{'rfc2822'}";
3566        if ($ad{'hour_local'} < 6) {
3567                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3568                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3569        } else {
3570                printf(" (%02d:%02d %s)",
3571                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3572        }
3573        print "</td>" .
3574              "</tr>\n";
3575        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3576        print "<tr><td></td><td> $cd{'rfc2822'}" .
3577              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3578              "</td></tr>\n";
3579        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3580        print "<tr>" .
3581              "<td>tree</td>" .
3582              "<td class=\"sha1\">" .
3583              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3584                       class => "list"}, $co{'tree'}) .
3585              "</td>" .
3586              "<td class=\"link\">" .
3587              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3588                      "tree");
3589        if ($have_snapshot) {
3590                print " | " .
3591                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3592        }
3593        print "</td>" .
3594              "</tr>\n";
3595        my $parents = $co{'parents'};
3596        foreach my $par (@$parents) {
3597                print "<tr>" .
3598                      "<td>parent</td>" .
3599                      "<td class=\"sha1\">" .
3600                      $cgi->a({-href => href(action=>"commit", hash=>$par),
3601                               class => "list"}, $par) .
3602                      "</td>" .
3603                      "<td class=\"link\">" .
3604                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3605                      " | " .
3606                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3607                      "</td>" .
3608                      "</tr>\n";
3609        }
3610        print "</table>".
3611              "</div>\n";
3612
3613        print "<div class=\"page_body\">\n";
3614        git_print_log($co{'comment'});
3615        print "</div>\n";
3616
3617        git_difftree_body(\@difftree, $hash, $parent);
3618
3619        git_footer_html();
3620}
3621
3622sub git_blobdiff {
3623        my $format = shift || 'html';
3624
3625        my $fd;
3626        my @difftree;
3627        my %diffinfo;
3628        my $expires;
3629
3630        # preparing $fd and %diffinfo for git_patchset_body
3631        # new style URI
3632        if (defined $hash_base && defined $hash_parent_base) {
3633                if (defined $file_name) {
3634                        # read raw output
3635                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3636                                $hash_parent_base, $hash_base,
3637                                "--", $file_name
3638                                or die_error(undef, "Open git-diff-tree failed");
3639                        @difftree = map { chomp; $_ } <$fd>;
3640                        close $fd
3641                                or die_error(undef, "Reading git-diff-tree failed");
3642                        @difftree
3643                                or die_error('404 Not Found', "Blob diff not found");
3644
3645                } elsif (defined $hash &&
3646                         $hash =~ /[0-9a-fA-F]{40}/) {
3647                        # try to find filename from $hash
3648
3649                        # read filtered raw output
3650                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3651                                $hash_parent_base, $hash_base, "--"
3652                                or die_error(undef, "Open git-diff-tree failed");
3653                        @difftree =
3654                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3655                                # $hash == to_id
3656                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3657                                map { chomp; $_ } <$fd>;
3658                        close $fd
3659                                or die_error(undef, "Reading git-diff-tree failed");
3660                        @difftree
3661                                or die_error('404 Not Found', "Blob diff not found");
3662
3663                } else {
3664                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3665                }
3666
3667                if (@difftree > 1) {
3668                        die_error('404 Not Found', "Ambiguous blob diff specification");
3669                }
3670
3671                %diffinfo = parse_difftree_raw_line($difftree[0]);
3672                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3673                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3674
3675                $hash_parent ||= $diffinfo{'from_id'};
3676                $hash        ||= $diffinfo{'to_id'};
3677
3678                # non-textual hash id's can be cached
3679                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3680                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3681                        $expires = '+1d';
3682                }
3683
3684                # open patch output
3685                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3686                        '-p', $hash_parent_base, $hash_base,
3687                        "--", $file_name
3688                        or die_error(undef, "Open git-diff-tree failed");
3689        }
3690
3691        # old/legacy style URI
3692        if (!%diffinfo && # if new style URI failed
3693            defined $hash && defined $hash_parent) {
3694                # fake git-diff-tree raw output
3695                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3696                $diffinfo{'from_id'} = $hash_parent;
3697                $diffinfo{'to_id'}   = $hash;
3698                if (defined $file_name) {
3699                        if (defined $file_parent) {
3700                                $diffinfo{'status'} = '2';
3701                                $diffinfo{'from_file'} = $file_parent;
3702                                $diffinfo{'to_file'}   = $file_name;
3703                        } else { # assume not renamed
3704                                $diffinfo{'status'} = '1';
3705                                $diffinfo{'from_file'} = $file_name;
3706                                $diffinfo{'to_file'}   = $file_name;
3707                        }
3708                } else { # no filename given
3709                        $diffinfo{'status'} = '2';
3710                        $diffinfo{'from_file'} = $hash_parent;
3711                        $diffinfo{'to_file'}   = $hash;
3712                }
3713
3714                # non-textual hash id's can be cached
3715                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3716                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3717                        $expires = '+1d';
3718                }
3719
3720                # open patch output
3721                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts,
3722                        $hash_parent, $hash, "--"
3723                        or die_error(undef, "Open git-diff failed");
3724        } else  {
3725                die_error('404 Not Found', "Missing one of the blob diff parameters")
3726                        unless %diffinfo;
3727        }
3728
3729        # header
3730        if ($format eq 'html') {
3731                my $formats_nav =
3732                        $cgi->a({-href => href(action=>"blobdiff_plain",
3733                                               hash=>$hash, hash_parent=>$hash_parent,
3734                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3735                                               file_name=>$file_name, file_parent=>$file_parent)},
3736                                "raw");
3737                git_header_html(undef, $expires);
3738                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3739                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3740                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3741                } else {
3742                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3743                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3744                }
3745                if (defined $file_name) {
3746                        git_print_page_path($file_name, "blob", $hash_base);
3747                } else {
3748                        print "<div class=\"page_path\"></div>\n";
3749                }
3750
3751        } elsif ($format eq 'plain') {
3752                print $cgi->header(
3753                        -type => 'text/plain',
3754                        -charset => 'utf-8',
3755                        -expires => $expires,
3756                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3757
3758                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3759
3760        } else {
3761                die_error(undef, "Unknown blobdiff format");
3762        }
3763
3764        # patch
3765        if ($format eq 'html') {
3766                print "<div class=\"page_body\">\n";
3767
3768                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3769                close $fd;
3770
3771                print "</div>\n"; # class="page_body"
3772                git_footer_html();
3773
3774        } else {
3775                while (my $line = <$fd>) {
3776                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
3777                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
3778
3779                        print $line;
3780
3781                        last if $line =~ m!^\+\+\+!;
3782                }
3783                local $/ = undef;
3784                print <$fd>;
3785                close $fd;
3786        }
3787}
3788
3789sub git_blobdiff_plain {
3790        git_blobdiff('plain');
3791}
3792
3793sub git_commitdiff {
3794        my $format = shift || 'html';
3795        $hash ||= $hash_base || "HEAD";
3796        my %co = parse_commit($hash);
3797        if (!%co) {
3798                die_error(undef, "Unknown commit object");
3799        }
3800
3801        # we need to prepare $formats_nav before any parameter munging
3802        my $formats_nav;
3803        if ($format eq 'html') {
3804                $formats_nav =
3805                        $cgi->a({-href => href(action=>"commitdiff_plain",
3806                                               hash=>$hash, hash_parent=>$hash_parent)},
3807                                "raw");
3808
3809                if (defined $hash_parent) {
3810                        # commitdiff with two commits given
3811                        my $hash_parent_short = $hash_parent;
3812                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3813                                $hash_parent_short = substr($hash_parent, 0, 7);
3814                        }
3815                        $formats_nav .=
3816                                ' (from: ' .
3817                                $cgi->a({-href => href(action=>"commitdiff",
3818                                                       hash=>$hash_parent)},
3819                                        esc_html($hash_parent_short)) .
3820                                ')';
3821                } elsif (!$co{'parent'}) {
3822                        # --root commitdiff
3823                        $formats_nav .= ' (initial)';
3824                } elsif (scalar @{$co{'parents'}} == 1) {
3825                        # single parent commit
3826                        $formats_nav .=
3827                                ' (parent: ' .
3828                                $cgi->a({-href => href(action=>"commitdiff",
3829                                                       hash=>$co{'parent'})},
3830                                        esc_html(substr($co{'parent'}, 0, 7))) .
3831                                ')';
3832                } else {
3833                        # merge commit
3834                        $formats_nav .=
3835                                ' (merge: ' .
3836                                join(' ', map {
3837                                        $cgi->a({-href => href(action=>"commitdiff",
3838                                                               hash=>$_)},
3839                                                esc_html(substr($_, 0, 7)));
3840                                } @{$co{'parents'}} ) .
3841                                ')';
3842                }
3843        }
3844
3845        if (!defined $hash_parent) {
3846                $hash_parent = $co{'parent'} || '--root';
3847        }
3848
3849        # read commitdiff
3850        my $fd;
3851        my @difftree;
3852        if ($format eq 'html') {
3853                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3854                        "--no-commit-id", "--patch-with-raw", "--full-index",
3855                        $hash_parent, $hash, "--"
3856                        or die_error(undef, "Open git-diff-tree failed");
3857
3858                while (my $line = <$fd>) {
3859                        chomp $line;
3860                        # empty line ends raw part of diff-tree output
3861                        last unless $line;
3862                        push @difftree, $line;
3863                }
3864
3865        } elsif ($format eq 'plain') {
3866                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3867                        '-p', $hash_parent, $hash, "--"
3868                        or die_error(undef, "Open git-diff-tree failed");
3869
3870        } else {
3871                die_error(undef, "Unknown commitdiff format");
3872        }
3873
3874        # non-textual hash id's can be cached
3875        my $expires;
3876        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3877                $expires = "+1d";
3878        }
3879
3880        # write commit message
3881        if ($format eq 'html') {
3882                my $refs = git_get_references();
3883                my $ref = format_ref_marker($refs, $co{'id'});
3884
3885                git_header_html(undef, $expires);
3886                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3887                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3888                git_print_authorship(\%co);
3889                print "<div class=\"page_body\">\n";
3890                if (@{$co{'comment'}} > 1) {
3891                        print "<div class=\"log\">\n";
3892                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
3893                        print "</div>\n"; # class="log"
3894                }
3895
3896        } elsif ($format eq 'plain') {
3897                my $refs = git_get_references("tags");
3898                my $tagname = git_get_rev_name_tags($hash);
3899                my $filename = basename($project) . "-$hash.patch";
3900
3901                print $cgi->header(
3902                        -type => 'text/plain',
3903                        -charset => 'utf-8',
3904                        -expires => $expires,
3905                        -content_disposition => 'inline; filename="' . "$filename" . '"');
3906                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3907                print <<TEXT;
3908From: $co{'author'}
3909Date: $ad{'rfc2822'} ($ad{'tz_local'})
3910Subject: $co{'title'}
3911TEXT
3912                print "X-Git-Tag: $tagname\n" if $tagname;
3913                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3914
3915                foreach my $line (@{$co{'comment'}}) {
3916                        print "$line\n";
3917                }
3918                print "---\n\n";
3919        }
3920
3921        # write patch
3922        if ($format eq 'html') {
3923                git_difftree_body(\@difftree, $hash, $hash_parent);
3924                print "<br/>\n";
3925
3926                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3927                close $fd;
3928                print "</div>\n"; # class="page_body"
3929                git_footer_html();
3930
3931        } elsif ($format eq 'plain') {
3932                local $/ = undef;
3933                print <$fd>;
3934                close $fd
3935                        or print "Reading git-diff-tree failed\n";
3936        }
3937}
3938
3939sub git_commitdiff_plain {
3940        git_commitdiff('plain');
3941}
3942
3943sub git_history {
3944        if (!defined $hash_base) {
3945                $hash_base = git_get_head_hash($project);
3946        }
3947        if (!defined $page) {
3948                $page = 0;
3949        }
3950        my $ftype;
3951        my %co = parse_commit($hash_base);
3952        if (!%co) {
3953                die_error(undef, "Unknown commit object");
3954        }
3955
3956        my $refs = git_get_references();
3957        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3958
3959        if (!defined $hash && defined $file_name) {
3960                $hash = git_get_hash_by_path($hash_base, $file_name);
3961        }
3962        if (defined $hash) {
3963                $ftype = git_get_type($hash);
3964        }
3965
3966        open my $fd, "-|",
3967                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3968                        or die_error(undef, "Open git-rev-list-failed");
3969        my @revlist = map { chomp; $_ } <$fd>;
3970        close $fd
3971                or die_error(undef, "Reading git-rev-list failed");
3972
3973        my $paging_nav = '';
3974        if ($page > 0) {
3975                $paging_nav .=
3976                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3977                                               file_name=>$file_name)},
3978                                "first");
3979                $paging_nav .= " &sdot; " .
3980                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3981                                               file_name=>$file_name, page=>$page-1),
3982                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3983        } else {
3984                $paging_nav .= "first";
3985                $paging_nav .= " &sdot; prev";
3986        }
3987        if ($#revlist >= (100 * ($page+1)-1)) {
3988                $paging_nav .= " &sdot; " .
3989                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3990                                               file_name=>$file_name, page=>$page+1),
3991                                 -accesskey => "n", -title => "Alt-n"}, "next");
3992        } else {
3993                $paging_nav .= " &sdot; next";
3994        }
3995        my $next_link = '';
3996        if ($#revlist >= (100 * ($page+1)-1)) {
3997                $next_link =
3998                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3999                                               file_name=>$file_name, page=>$page+1),
4000                                 -title => "Alt-n"}, "next");
4001        }
4002
4003        git_header_html();
4004        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
4005        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4006        git_print_page_path($file_name, $ftype, $hash_base);
4007
4008        git_history_body(\@revlist, ($page * 100), $#revlist,
4009                         $refs, $hash_base, $ftype, $next_link);
4010
4011        git_footer_html();
4012}
4013
4014sub git_search {
4015        if (!defined $searchtext) {
4016                die_error(undef, "Text field empty");
4017        }
4018        if (!defined $hash) {
4019                $hash = git_get_head_hash($project);
4020        }
4021        my %co = parse_commit($hash);
4022        if (!%co) {
4023                die_error(undef, "Unknown commit object");
4024        }
4025
4026        $searchtype ||= 'commit';
4027        if ($searchtype eq 'pickaxe') {
4028                # pickaxe may take all resources of your box and run for several minutes
4029                # with every query - so decide by yourself how public you make this feature
4030                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4031                if (!$have_pickaxe) {
4032                        die_error('403 Permission denied', "Permission denied");
4033                }
4034        }
4035
4036        git_header_html();
4037        git_print_page_nav('','', $hash,$co{'tree'},$hash);
4038        git_print_header_div('commit', esc_html($co{'title'}), $hash);
4039
4040        print "<table cellspacing=\"0\">\n";
4041        my $alternate = 1;
4042        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
4043                $/ = "\0";
4044                open my $fd, "-|", git_cmd(), "rev-list",
4045                        "--header", "--parents", $hash, "--"
4046                        or next;
4047                while (my $commit_text = <$fd>) {
4048                        if (!grep m/$searchtext/i, $commit_text) {
4049                                next;
4050                        }
4051                        if ($searchtype eq 'author' && !grep m/\nauthor .*$searchtext/i, $commit_text) {
4052                                next;
4053                        }
4054                        if ($searchtype eq 'committer' && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
4055                                next;
4056                        }
4057                        my @commit_lines = split "\n", $commit_text;
4058                        my %co = parse_commit(undef, \@commit_lines);
4059                        if (!%co) {
4060                                next;
4061                        }
4062                        if ($alternate) {
4063                                print "<tr class=\"dark\">\n";
4064                        } else {
4065                                print "<tr class=\"light\">\n";
4066                        }
4067                        $alternate ^= 1;
4068                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4069                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4070                              "<td>" .
4071                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
4072                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4073                        my $comment = $co{'comment'};
4074                        foreach my $line (@$comment) {
4075                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
4076                                        my $lead = esc_html($1) || "";
4077                                        $lead = chop_str($lead, 30, 10);
4078                                        my $match = esc_html($2) || "";
4079                                        my $trail = esc_html($3) || "";
4080                                        $trail = chop_str($trail, 30, 10);
4081                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
4082                                        print chop_str($text, 80, 5) . "<br/>\n";
4083                                }
4084                        }
4085                        print "</td>\n" .
4086                              "<td class=\"link\">" .
4087                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4088                              " | " .
4089                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4090                        print "</td>\n" .
4091                              "</tr>\n";
4092                }
4093                close $fd;
4094        }
4095
4096        if ($searchtype eq 'pickaxe') {
4097                $/ = "\n";
4098                my $git_command = git_cmd_str();
4099                open my $fd, "-|", "$git_command rev-list $hash | " .
4100                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
4101                undef %co;
4102                my @files;
4103                while (my $line = <$fd>) {
4104                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
4105                                my %set;
4106                                $set{'file'} = $6;
4107                                $set{'from_id'} = $3;
4108                                $set{'to_id'} = $4;
4109                                $set{'id'} = $set{'to_id'};
4110                                if ($set{'id'} =~ m/0{40}/) {
4111                                        $set{'id'} = $set{'from_id'};
4112                                }
4113                                if ($set{'id'} =~ m/0{40}/) {
4114                                        next;
4115                                }
4116                                push @files, \%set;
4117                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
4118                                if (%co) {
4119                                        if ($alternate) {
4120                                                print "<tr class=\"dark\">\n";
4121                                        } else {
4122                                                print "<tr class=\"light\">\n";
4123                                        }
4124                                        $alternate ^= 1;
4125                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4126                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4127                                              "<td>" .
4128                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
4129                                                      -class => "list subject"},
4130                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4131                                        while (my $setref = shift @files) {
4132                                                my %set = %$setref;
4133                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
4134                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
4135                                                              -class => "list"},
4136                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
4137                                                      "<br/>\n";
4138                                        }
4139                                        print "</td>\n" .
4140                                              "<td class=\"link\">" .
4141                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4142                                              " | " .
4143                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4144                                        print "</td>\n" .
4145                                              "</tr>\n";
4146                                }
4147                                %co = parse_commit($1);
4148                        }
4149                }
4150                close $fd;
4151        }
4152        print "</table>\n";
4153        git_footer_html();
4154}
4155
4156sub git_search_help {
4157        git_header_html();
4158        git_print_page_nav('','', $hash,$hash,$hash);
4159        print <<EOT;
4160<dl>
4161<dt><b>commit</b></dt>
4162<dd>The commit messages and authorship information will be scanned for the given string.</dd>
4163<dt><b>author</b></dt>
4164<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
4165<dt><b>committer</b></dt>
4166<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
4167EOT
4168        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4169        if ($have_pickaxe) {
4170                print <<EOT;
4171<dt><b>pickaxe</b></dt>
4172<dd>All commits that caused the string to appear or disappear from any file (changes that
4173added, removed or "modified" the string) will be listed. This search can take a while and
4174takes a lot of strain on the server, so please use it wisely.</dd>
4175EOT
4176        }
4177        print "</dl>\n";
4178        git_footer_html();
4179}
4180
4181sub git_shortlog {
4182        my $head = git_get_head_hash($project);
4183        if (!defined $hash) {
4184                $hash = $head;
4185        }
4186        if (!defined $page) {
4187                $page = 0;
4188        }
4189        my $refs = git_get_references();
4190
4191        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4192        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
4193                or die_error(undef, "Open git-rev-list failed");
4194        my @revlist = map { chomp; $_ } <$fd>;
4195        close $fd;
4196
4197        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
4198        my $next_link = '';
4199        if ($#revlist >= (100 * ($page+1)-1)) {
4200                $next_link =
4201                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
4202                                 -title => "Alt-n"}, "next");
4203        }
4204
4205
4206        git_header_html();
4207        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
4208        git_print_header_div('summary', $project);
4209
4210        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
4211
4212        git_footer_html();
4213}
4214
4215## ......................................................................
4216## feeds (RSS, Atom; OPML)
4217
4218sub git_feed {
4219        my $format = shift || 'atom';
4220        my ($have_blame) = gitweb_check_feature('blame');
4221
4222        # Atom: http://www.atomenabled.org/developers/syndication/
4223        # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
4224        if ($format ne 'rss' && $format ne 'atom') {
4225                die_error(undef, "Unknown web feed format");
4226        }
4227
4228        # log/feed of current (HEAD) branch, log of given branch, history of file/directory
4229        my $head = $hash || 'HEAD';
4230        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150",
4231                $head, "--", (defined $file_name ? $file_name : ())
4232                or die_error(undef, "Open git-rev-list failed");
4233        my @revlist = map { chomp; $_ } <$fd>;
4234        close $fd or die_error(undef, "Reading git-rev-list failed");
4235
4236        my %latest_commit;
4237        my %latest_date;
4238        my $content_type = "application/$format+xml";
4239        if (defined $cgi->http('HTTP_ACCEPT') &&
4240                 $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
4241                # browser (feed reader) prefers text/xml
4242                $content_type = 'text/xml';
4243        }
4244        if (defined($revlist[0])) {
4245                %latest_commit = parse_commit($revlist[0]);
4246                %latest_date   = parse_date($latest_commit{'author_epoch'});
4247                print $cgi->header(
4248                        -type => $content_type,
4249                        -charset => 'utf-8',
4250                        -last_modified => $latest_date{'rfc2822'});
4251        } else {
4252                print $cgi->header(
4253                        -type => $content_type,
4254                        -charset => 'utf-8');
4255        }
4256
4257        # Optimization: skip generating the body if client asks only
4258        # for Last-Modified date.
4259        return if ($cgi->request_method() eq 'HEAD');
4260
4261        # header variables
4262        my $title = "$site_name - $project/$action";
4263        my $feed_type = 'log';
4264        if (defined $hash) {
4265                $title .= " - '$hash'";
4266                $feed_type = 'branch log';
4267                if (defined $file_name) {
4268                        $title .= " :: $file_name";
4269                        $feed_type = 'history';
4270                }
4271        } elsif (defined $file_name) {
4272                $title .= " - $file_name";
4273                $feed_type = 'history';
4274        }
4275        $title .= " $feed_type";
4276        my $descr = git_get_project_description($project);
4277        if (defined $descr) {
4278                $descr = esc_html($descr);
4279        } else {
4280                $descr = "$project " .
4281                         ($format eq 'rss' ? 'RSS' : 'Atom') .
4282                         " feed";
4283        }
4284        my $owner = git_get_project_owner($project);
4285        $owner = esc_html($owner);
4286
4287        #header
4288        my $alt_url;
4289        if (defined $file_name) {
4290                $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
4291        } elsif (defined $hash) {
4292                $alt_url = href(-full=>1, action=>"log", hash=>$hash);
4293        } else {
4294                $alt_url = href(-full=>1, action=>"summary");
4295        }
4296        print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
4297        if ($format eq 'rss') {
4298                print <<XML;
4299<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
4300<channel>
4301XML
4302                print "<title>$title</title>\n" .
4303                      "<link>$alt_url</link>\n" .
4304                      "<description>$descr</description>\n" .
4305                      "<language>en</language>\n";
4306        } elsif ($format eq 'atom') {
4307                print <<XML;
4308<feed xmlns="http://www.w3.org/2005/Atom">
4309XML
4310                print "<title>$title</title>\n" .
4311                      "<subtitle>$descr</subtitle>\n" .
4312                      '<link rel="alternate" type="text/html" href="' .
4313                      $alt_url . '" />' . "\n" .
4314                      '<link rel="self" type="' . $content_type . '" href="' .
4315                      $cgi->self_url() . '" />' . "\n" .
4316                      "<id>" . href(-full=>1) . "</id>\n" .
4317                      # use project owner for feed author
4318                      "<author><name>$owner</name></author>\n";
4319                if (defined $favicon) {
4320                        print "<icon>" . esc_url($favicon) . "</icon>\n";
4321                }
4322                if (defined $logo_url) {
4323                        # not twice as wide as tall: 72 x 27 pixels
4324                        print "<logo>" . esc_url($logo) . "</logo>\n";
4325                }
4326                if (! %latest_date) {
4327                        # dummy date to keep the feed valid until commits trickle in:
4328                        print "<updated>1970-01-01T00:00:00Z</updated>\n";
4329                } else {
4330                        print "<updated>$latest_date{'iso-8601'}</updated>\n";
4331                }
4332        }
4333
4334        # contents
4335        for (my $i = 0; $i <= $#revlist; $i++) {
4336                my $commit = $revlist[$i];
4337                my %co = parse_commit($commit);
4338                # we read 150, we always show 30 and the ones more recent than 48 hours
4339                if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
4340                        last;
4341                }
4342                my %cd = parse_date($co{'author_epoch'});
4343
4344                # get list of changed files
4345                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4346                        $co{'parent'}, $co{'id'}, "--", (defined $file_name ? $file_name : ())
4347                        or next;
4348                my @difftree = map { chomp; $_ } <$fd>;
4349                close $fd
4350                        or next;
4351
4352                # print element (entry, item)
4353                my $co_url = href(-full=>1, action=>"commit", hash=>$commit);
4354                if ($format eq 'rss') {
4355                        print "<item>\n" .
4356                              "<title>" . esc_html($co{'title'}) . "</title>\n" .
4357                              "<author>" . esc_html($co{'author'}) . "</author>\n" .
4358                              "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
4359                              "<guid isPermaLink=\"true\">$co_url</guid>\n" .
4360                              "<link>$co_url</link>\n" .
4361                              "<description>" . esc_html($co{'title'}) . "</description>\n" .
4362                              "<content:encoded>" .
4363                              "<![CDATA[\n";
4364                } elsif ($format eq 'atom') {
4365                        print "<entry>\n" .
4366                              "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
4367                              "<updated>$cd{'iso-8601'}</updated>\n" .
4368                              "<author>\n" .
4369                              "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
4370                        if ($co{'author_email'}) {
4371                                print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
4372                        }
4373                        print "</author>\n" .
4374                              # use committer for contributor
4375                              "<contributor>\n" .
4376                              "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
4377                        if ($co{'committer_email'}) {
4378                                print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
4379                        }
4380                        print "</contributor>\n" .
4381                              "<published>$cd{'iso-8601'}</published>\n" .
4382                              "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
4383                              "<id>$co_url</id>\n" .
4384                              "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
4385                              "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
4386                }
4387                my $comment = $co{'comment'};
4388                print "<pre>\n";
4389                foreach my $line (@$comment) {
4390                        $line = esc_html($line);
4391                        print "$line\n";
4392                }
4393                print "</pre><ul>\n";
4394                foreach my $difftree_line (@difftree) {
4395                        my %difftree = parse_difftree_raw_line($difftree_line);
4396                        next if !$difftree{'from_id'};
4397
4398                        my $file = $difftree{'file'} || $difftree{'to_file'};
4399
4400                        print "<li>" .
4401                              "[" .
4402                              $cgi->a({-href => href(-full=>1, action=>"blobdiff",
4403                                                     hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
4404                                                     hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
4405                                                     file_name=>$file, file_parent=>$difftree{'from_file'}),
4406                                      -title => "diff"}, 'D');
4407                        if ($have_blame) {
4408                                print $cgi->a({-href => href(-full=>1, action=>"blame",
4409                                                             file_name=>$file, hash_base=>$commit),
4410                                              -title => "blame"}, 'B');
4411                        }
4412                        # if this is not a feed of a file history
4413                        if (!defined $file_name || $file_name ne $file) {
4414                                print $cgi->a({-href => href(-full=>1, action=>"history",
4415                                                             file_name=>$file, hash=>$commit),
4416                                              -title => "history"}, 'H');
4417                        }
4418                        $file = esc_path($file);
4419                        print "] ".
4420                              "$file</li>\n";
4421                }
4422                if ($format eq 'rss') {
4423                        print "</ul>]]>\n" .
4424                              "</content:encoded>\n" .
4425                              "</item>\n";
4426                } elsif ($format eq 'atom') {
4427                        print "</ul>\n</div>\n" .
4428                              "</content>\n" .
4429                              "</entry>\n";
4430                }
4431        }
4432
4433        # end of feed
4434        if ($format eq 'rss') {
4435                print "</channel>\n</rss>\n";
4436        }       elsif ($format eq 'atom') {
4437                print "</feed>\n";
4438        }
4439}
4440
4441sub git_rss {
4442        git_feed('rss');
4443}
4444
4445sub git_atom {
4446        git_feed('atom');
4447}
4448
4449sub git_opml {
4450        my @list = git_get_projects_list();
4451
4452        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4453        print <<XML;
4454<?xml version="1.0" encoding="utf-8"?>
4455<opml version="1.0">
4456<head>
4457  <title>$site_name OPML Export</title>
4458</head>
4459<body>
4460<outline text="git RSS feeds">
4461XML
4462
4463        foreach my $pr (@list) {
4464                my %proj = %$pr;
4465                my $head = git_get_head_hash($proj{'path'});
4466                if (!defined $head) {
4467                        next;
4468                }
4469                $git_dir = "$projectroot/$proj{'path'}";
4470                my %co = parse_commit($head);
4471                if (!%co) {
4472                        next;
4473                }
4474
4475                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
4476                my $rss  = "$my_url?p=$proj{'path'};a=rss";
4477                my $html = "$my_url?p=$proj{'path'};a=summary";
4478                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
4479        }
4480        print <<XML;
4481</outline>
4482</body>
4483</opml>
4484XML
4485}