61e2ab290036fe504b808ef35340ce776bd1983b
   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21our $cgi = new CGI;
  22our $version = "++GIT_VERSION++";
  23our $my_url = $cgi->url();
  24our $my_uri = $cgi->url(-absolute => 1);
  25
  26# core git executable to use
  27# this can just be "git" if your webserver has a sensible PATH
  28our $GIT = "++GIT_BINDIR++/git";
  29
  30# absolute fs-path which will be prepended to the project path
  31#our $projectroot = "/pub/scm";
  32our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34# target of the home link on top of all pages
  35our $home_link = $my_uri || "/";
  36
  37# string of the home link on top of all pages
  38our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40# name of your site or organization to appear in page titles
  41# replace this with something more descriptive for clearer bookmarks
  42our $site_name = "++GITWEB_SITENAME++"
  43                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  44
  45# filename of html text to include at top of each page
  46our $site_header = "++GITWEB_SITE_HEADER++";
  47# html text to include at home page
  48our $home_text = "++GITWEB_HOMETEXT++";
  49# filename of html text to include at bottom of each page
  50our $site_footer = "++GITWEB_SITE_FOOTER++";
  51
  52# URI of stylesheets
  53our @stylesheets = ("++GITWEB_CSS++");
  54# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  55our $stylesheet = undef;
  56# URI of GIT logo (72x27 size)
  57our $logo = "++GITWEB_LOGO++";
  58# URI of GIT favicon, assumed to be image/png type
  59our $favicon = "++GITWEB_FAVICON++";
  60
  61# URI and label (title) of GIT logo link
  62#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  63#our $logo_label = "git documentation";
  64our $logo_url = "http://git.or.cz/";
  65our $logo_label = "git homepage";
  66
  67# source of projects list
  68our $projects_list = "++GITWEB_LIST++";
  69
  70# show repository only if this file exists
  71# (only effective if this variable evaluates to true)
  72our $export_ok = "++GITWEB_EXPORT_OK++";
  73
  74# only allow viewing of repositories also shown on the overview page
  75our $strict_export = "++GITWEB_STRICT_EXPORT++";
  76
  77# list of git base URLs used for URL to where fetch project from,
  78# i.e. full URL is "$git_base_url/$project"
  79our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  80
  81# default blob_plain mimetype and default charset for text/plain blob
  82our $default_blob_plain_mimetype = 'text/plain';
  83our $default_text_plain_charset  = undef;
  84
  85# file to use for guessing MIME types before trying /etc/mime.types
  86# (relative to the current git repository)
  87our $mimetypes_file = undef;
  88
  89# You define site-wide feature defaults here; override them with
  90# $GITWEB_CONFIG as necessary.
  91our %feature = (
  92        # feature => {
  93        #       'sub' => feature-sub (subroutine),
  94        #       'override' => allow-override (boolean),
  95        #       'default' => [ default options...] (array reference)}
  96        #
  97        # if feature is overridable (it means that allow-override has true value,
  98        # then feature-sub will be called with default options as parameters;
  99        # return value of feature-sub indicates if to enable specified feature
 100        #
 101        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 102
 103        # Enable the 'blame' blob view, showing the last commit that modified
 104        # each line in the file. This can be very CPU-intensive.
 105
 106        # To enable system wide have in $GITWEB_CONFIG
 107        # $feature{'blame'}{'default'} = [1];
 108        # To have project specific config enable override in $GITWEB_CONFIG
 109        # $feature{'blame'}{'override'} = 1;
 110        # and in project config gitweb.blame = 0|1;
 111        'blame' => {
 112                'sub' => \&feature_blame,
 113                'override' => 0,
 114                'default' => [0]},
 115
 116        # Enable the 'snapshot' link, providing a compressed tarball of any
 117        # tree. This can potentially generate high traffic if you have large
 118        # project.
 119
 120        # To disable system wide have in $GITWEB_CONFIG
 121        # $feature{'snapshot'}{'default'} = [undef];
 122        # To have project specific config enable override in $GITWEB_CONFIG
 123        # $feature{'blame'}{'override'} = 1;
 124        # and in project config gitweb.snapshot = none|gzip|bzip2;
 125        'snapshot' => {
 126                'sub' => \&feature_snapshot,
 127                'override' => 0,
 128                #         => [content-encoding, suffix, program]
 129                'default' => ['x-gzip', 'gz', 'gzip']},
 130
 131        # Enable the pickaxe search, which will list the commits that modified
 132        # a given string in a file. This can be practical and quite faster
 133        # alternative to 'blame', but still potentially CPU-intensive.
 134
 135        # To enable system wide have in $GITWEB_CONFIG
 136        # $feature{'pickaxe'}{'default'} = [1];
 137        # To have project specific config enable override in $GITWEB_CONFIG
 138        # $feature{'pickaxe'}{'override'} = 1;
 139        # and in project config gitweb.pickaxe = 0|1;
 140        'pickaxe' => {
 141                'sub' => \&feature_pickaxe,
 142                'override' => 0,
 143                'default' => [1]},
 144
 145        # Make gitweb use an alternative format of the URLs which can be
 146        # more readable and natural-looking: project name is embedded
 147        # directly in the path and the query string contains other
 148        # auxiliary information. All gitweb installations recognize
 149        # URL in either format; this configures in which formats gitweb
 150        # generates links.
 151
 152        # To enable system wide have in $GITWEB_CONFIG
 153        # $feature{'pathinfo'}{'default'} = [1];
 154        # Project specific override is not supported.
 155
 156        # Note that you will need to change the default location of CSS,
 157        # favicon, logo and possibly other files to an absolute URL. Also,
 158        # if gitweb.cgi serves as your indexfile, you will need to force
 159        # $my_uri to contain the script name in your $GITWEB_CONFIG.
 160        'pathinfo' => {
 161                'override' => 0,
 162                'default' => [0]},
 163
 164        # Make gitweb consider projects in project root subdirectories
 165        # to be forks of existing projects. Given project $projname.git,
 166        # projects matching $projname/*.git will not be shown in the main
 167        # projects list, instead a '+' mark will be added to $projname
 168        # there and a 'forks' view will be enabled for the project, listing
 169        # all the forks. This feature is supported only if project list
 170        # is taken from a directory, not file.
 171
 172        # To enable system wide have in $GITWEB_CONFIG
 173        # $feature{'forks'}{'default'} = [1];
 174        # Project specific override is not supported.
 175        'forks' => {
 176                'override' => 0,
 177                'default' => [0]},
 178);
 179
 180sub gitweb_check_feature {
 181        my ($name) = @_;
 182        return unless exists $feature{$name};
 183        my ($sub, $override, @defaults) = (
 184                $feature{$name}{'sub'},
 185                $feature{$name}{'override'},
 186                @{$feature{$name}{'default'}});
 187        if (!$override) { return @defaults; }
 188        if (!defined $sub) {
 189                warn "feature $name is not overrideable";
 190                return @defaults;
 191        }
 192        return $sub->(@defaults);
 193}
 194
 195sub feature_blame {
 196        my ($val) = git_get_project_config('blame', '--bool');
 197
 198        if ($val eq 'true') {
 199                return 1;
 200        } elsif ($val eq 'false') {
 201                return 0;
 202        }
 203
 204        return $_[0];
 205}
 206
 207sub feature_snapshot {
 208        my ($ctype, $suffix, $command) = @_;
 209
 210        my ($val) = git_get_project_config('snapshot');
 211
 212        if ($val eq 'gzip') {
 213                return ('x-gzip', 'gz', 'gzip');
 214        } elsif ($val eq 'bzip2') {
 215                return ('x-bzip2', 'bz2', 'bzip2');
 216        } elsif ($val eq 'none') {
 217                return ();
 218        }
 219
 220        return ($ctype, $suffix, $command);
 221}
 222
 223sub gitweb_have_snapshot {
 224        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 225        my $have_snapshot = (defined $ctype && defined $suffix);
 226
 227        return $have_snapshot;
 228}
 229
 230sub feature_pickaxe {
 231        my ($val) = git_get_project_config('pickaxe', '--bool');
 232
 233        if ($val eq 'true') {
 234                return (1);
 235        } elsif ($val eq 'false') {
 236                return (0);
 237        }
 238
 239        return ($_[0]);
 240}
 241
 242# checking HEAD file with -e is fragile if the repository was
 243# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 244# and then pruned.
 245sub check_head_link {
 246        my ($dir) = @_;
 247        my $headfile = "$dir/HEAD";
 248        return ((-e $headfile) ||
 249                (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 250}
 251
 252sub check_export_ok {
 253        my ($dir) = @_;
 254        return (check_head_link($dir) &&
 255                (!$export_ok || -e "$dir/$export_ok"));
 256}
 257
 258# rename detection options for git-diff and git-diff-tree
 259# - default is '-M', with the cost proportional to
 260#   (number of removed files) * (number of new files).
 261# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 262#   (number of changed files + number of removed files) * (number of new files)
 263# - even more costly is '-C', '--find-copies-harder' with cost
 264#   (number of files in the original tree) * (number of new files)
 265# - one might want to include '-B' option, e.g. '-B', '-M'
 266our @diff_opts = ('-M'); # taken from git_commit
 267
 268our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 269do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 270
 271# version of the core git binary
 272our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 273
 274$projects_list ||= $projectroot;
 275
 276# ======================================================================
 277# input validation and dispatch
 278our $action = $cgi->param('a');
 279if (defined $action) {
 280        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 281                die_error(undef, "Invalid action parameter");
 282        }
 283}
 284
 285# parameters which are pathnames
 286our $project = $cgi->param('p');
 287if (defined $project) {
 288        if (!validate_pathname($project) ||
 289            !(-d "$projectroot/$project") ||
 290            !check_head_link("$projectroot/$project") ||
 291            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 292            ($strict_export && !project_in_list($project))) {
 293                undef $project;
 294                die_error(undef, "No such project");
 295        }
 296}
 297
 298our $file_name = $cgi->param('f');
 299if (defined $file_name) {
 300        if (!validate_pathname($file_name)) {
 301                die_error(undef, "Invalid file parameter");
 302        }
 303}
 304
 305our $file_parent = $cgi->param('fp');
 306if (defined $file_parent) {
 307        if (!validate_pathname($file_parent)) {
 308                die_error(undef, "Invalid file parent parameter");
 309        }
 310}
 311
 312# parameters which are refnames
 313our $hash = $cgi->param('h');
 314if (defined $hash) {
 315        if (!validate_refname($hash)) {
 316                die_error(undef, "Invalid hash parameter");
 317        }
 318}
 319
 320our $hash_parent = $cgi->param('hp');
 321if (defined $hash_parent) {
 322        if (!validate_refname($hash_parent)) {
 323                die_error(undef, "Invalid hash parent parameter");
 324        }
 325}
 326
 327our $hash_base = $cgi->param('hb');
 328if (defined $hash_base) {
 329        if (!validate_refname($hash_base)) {
 330                die_error(undef, "Invalid hash base parameter");
 331        }
 332}
 333
 334our $hash_parent_base = $cgi->param('hpb');
 335if (defined $hash_parent_base) {
 336        if (!validate_refname($hash_parent_base)) {
 337                die_error(undef, "Invalid hash parent base parameter");
 338        }
 339}
 340
 341# other parameters
 342our $page = $cgi->param('pg');
 343if (defined $page) {
 344        if ($page =~ m/[^0-9]/) {
 345                die_error(undef, "Invalid page parameter");
 346        }
 347}
 348
 349our $searchtext = $cgi->param('s');
 350if (defined $searchtext) {
 351        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 352                die_error(undef, "Invalid search parameter");
 353        }
 354        $searchtext = quotemeta $searchtext;
 355}
 356
 357our $searchtype = $cgi->param('st');
 358if (defined $searchtype) {
 359        if ($searchtype =~ m/[^a-z]/) {
 360                die_error(undef, "Invalid searchtype parameter");
 361        }
 362}
 363
 364# now read PATH_INFO and use it as alternative to parameters
 365sub evaluate_path_info {
 366        return if defined $project;
 367        my $path_info = $ENV{"PATH_INFO"};
 368        return if !$path_info;
 369        $path_info =~ s,^/+,,;
 370        return if !$path_info;
 371        # find which part of PATH_INFO is project
 372        $project = $path_info;
 373        $project =~ s,/+$,,;
 374        while ($project && !check_head_link("$projectroot/$project")) {
 375                $project =~ s,/*[^/]*$,,;
 376        }
 377        # validate project
 378        $project = validate_pathname($project);
 379        if (!$project ||
 380            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 381            ($strict_export && !project_in_list($project))) {
 382                undef $project;
 383                return;
 384        }
 385        # do not change any parameters if an action is given using the query string
 386        return if $action;
 387        $path_info =~ s,^$project/*,,;
 388        my ($refname, $pathname) = split(/:/, $path_info, 2);
 389        if (defined $pathname) {
 390                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 391                # we could use git_get_type(branch:pathname), but it needs $git_dir
 392                $pathname =~ s,^/+,,;
 393                if (!$pathname || substr($pathname, -1) eq "/") {
 394                        $action  ||= "tree";
 395                        $pathname =~ s,/$,,;
 396                } else {
 397                        $action  ||= "blob_plain";
 398                }
 399                $hash_base ||= validate_refname($refname);
 400                $file_name ||= validate_pathname($pathname);
 401        } elsif (defined $refname) {
 402                # we got "project.git/branch"
 403                $action ||= "shortlog";
 404                $hash   ||= validate_refname($refname);
 405        }
 406}
 407evaluate_path_info();
 408
 409# path to the current git repository
 410our $git_dir;
 411$git_dir = "$projectroot/$project" if $project;
 412
 413# dispatch
 414my %actions = (
 415        "blame" => \&git_blame2,
 416        "blobdiff" => \&git_blobdiff,
 417        "blobdiff_plain" => \&git_blobdiff_plain,
 418        "blob" => \&git_blob,
 419        "blob_plain" => \&git_blob_plain,
 420        "commitdiff" => \&git_commitdiff,
 421        "commitdiff_plain" => \&git_commitdiff_plain,
 422        "commit" => \&git_commit,
 423        "forks" => \&git_forks,
 424        "heads" => \&git_heads,
 425        "history" => \&git_history,
 426        "log" => \&git_log,
 427        "rss" => \&git_rss,
 428        "atom" => \&git_atom,
 429        "search" => \&git_search,
 430        "search_help" => \&git_search_help,
 431        "shortlog" => \&git_shortlog,
 432        "summary" => \&git_summary,
 433        "tag" => \&git_tag,
 434        "tags" => \&git_tags,
 435        "tree" => \&git_tree,
 436        "snapshot" => \&git_snapshot,
 437        # those below don't need $project
 438        "opml" => \&git_opml,
 439        "project_list" => \&git_project_list,
 440        "project_index" => \&git_project_index,
 441);
 442
 443if (defined $project) {
 444        $action ||= 'summary';
 445} else {
 446        $action ||= 'project_list';
 447}
 448if (!defined($actions{$action})) {
 449        die_error(undef, "Unknown action");
 450}
 451if ($action !~ m/^(opml|project_list|project_index)$/ &&
 452    !$project) {
 453        die_error(undef, "Project needed");
 454}
 455$actions{$action}->();
 456exit;
 457
 458## ======================================================================
 459## action links
 460
 461sub href(%) {
 462        my %params = @_;
 463        # default is to use -absolute url() i.e. $my_uri
 464        my $href = $params{-full} ? $my_url : $my_uri;
 465
 466        # XXX: Warning: If you touch this, check the search form for updating,
 467        # too.
 468
 469        my @mapping = (
 470                project => "p",
 471                action => "a",
 472                file_name => "f",
 473                file_parent => "fp",
 474                hash => "h",
 475                hash_parent => "hp",
 476                hash_base => "hb",
 477                hash_parent_base => "hpb",
 478                page => "pg",
 479                order => "o",
 480                searchtext => "s",
 481                searchtype => "st",
 482        );
 483        my %mapping = @mapping;
 484
 485        $params{'project'} = $project unless exists $params{'project'};
 486
 487        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 488        if ($use_pathinfo) {
 489                # use PATH_INFO for project name
 490                $href .= "/$params{'project'}" if defined $params{'project'};
 491                delete $params{'project'};
 492
 493                # Summary just uses the project path URL
 494                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 495                        delete $params{'action'};
 496                }
 497        }
 498
 499        # now encode the parameters explicitly
 500        my @result = ();
 501        for (my $i = 0; $i < @mapping; $i += 2) {
 502                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 503                if (defined $params{$name}) {
 504                        push @result, $symbol . "=" . esc_param($params{$name});
 505                }
 506        }
 507        $href .= "?" . join(';', @result) if scalar @result;
 508
 509        return $href;
 510}
 511
 512
 513## ======================================================================
 514## validation, quoting/unquoting and escaping
 515
 516sub validate_pathname {
 517        my $input = shift || return undef;
 518
 519        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 520        # at the beginning, at the end, and between slashes.
 521        # also this catches doubled slashes
 522        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 523                return undef;
 524        }
 525        # no null characters
 526        if ($input =~ m!\0!) {
 527                return undef;
 528        }
 529        return $input;
 530}
 531
 532sub validate_refname {
 533        my $input = shift || return undef;
 534
 535        # textual hashes are O.K.
 536        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 537                return $input;
 538        }
 539        # it must be correct pathname
 540        $input = validate_pathname($input)
 541                or return undef;
 542        # restrictions on ref name according to git-check-ref-format
 543        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 544                return undef;
 545        }
 546        return $input;
 547}
 548
 549# very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 550sub to_utf8 {
 551        my $str = shift;
 552        return decode("utf8", $str, Encode::FB_DEFAULT);
 553}
 554
 555# quote unsafe chars, but keep the slash, even when it's not
 556# correct, but quoted slashes look too horrible in bookmarks
 557sub esc_param {
 558        my $str = shift;
 559        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 560        $str =~ s/\+/%2B/g;
 561        $str =~ s/ /\+/g;
 562        return $str;
 563}
 564
 565# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 566sub esc_url {
 567        my $str = shift;
 568        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 569        $str =~ s/\+/%2B/g;
 570        $str =~ s/ /\+/g;
 571        return $str;
 572}
 573
 574# replace invalid utf8 character with SUBSTITUTION sequence
 575sub esc_html ($;%) {
 576        my $str = shift;
 577        my %opts = @_;
 578
 579        $str = to_utf8($str);
 580        $str = escapeHTML($str);
 581        if ($opts{'-nbsp'}) {
 582                $str =~ s/ /&nbsp;/g;
 583        }
 584        $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
 585        return $str;
 586}
 587
 588# 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 $empty;
1989        }
1990}
1991
1992# print tree entry (row of git_tree), but without encompassing <tr> element
1993sub git_print_tree_entry {
1994        my ($t, $basedir, $hash_base, $have_blame) = @_;
1995
1996        my %base_key = ();
1997        $base_key{hash_base} = $hash_base if defined $hash_base;
1998
1999        # The format of a table row is: mode list link.  Where mode is
2000        # the mode of the entry, list is the name of the entry, an href,
2001        # and link is the action links of the entry.
2002
2003        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
2004        if ($t->{'type'} eq "blob") {
2005                print "<td class=\"list\">" .
2006                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2007                                               file_name=>"$basedir$t->{'name'}", %base_key),
2008                                -class => "list"}, esc_path($t->{'name'})) . "</td>\n";
2009                print "<td class=\"link\">";
2010                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2011                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2012                              "blob");
2013                if ($have_blame) {
2014                        print " | " .
2015                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
2016                                                           file_name=>"$basedir$t->{'name'}", %base_key)},
2017                                            "blame");
2018                }
2019                if (defined $hash_base) {
2020                        print " | " .
2021                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2022                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2023                                      "history");
2024                }
2025                print " | " .
2026                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2027                                               file_name=>"$basedir$t->{'name'}")},
2028                                "raw");
2029                print "</td>\n";
2030
2031        } elsif ($t->{'type'} eq "tree") {
2032                print "<td class=\"list\">";
2033                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2034                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2035                              esc_path($t->{'name'}));
2036                print "</td>\n";
2037                print "<td class=\"link\">";
2038                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2039                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2040                              "tree");
2041                if (defined $hash_base) {
2042                        print " | " .
2043                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2044                                                     file_name=>"$basedir$t->{'name'}")},
2045                                      "history");
2046                }
2047                print "</td>\n";
2048        }
2049}
2050
2051## ......................................................................
2052## functions printing large fragments of HTML
2053
2054sub git_difftree_body {
2055        my ($difftree, $hash, $parent) = @_;
2056        my ($have_blame) = gitweb_check_feature('blame');
2057        print "<div class=\"list_head\">\n";
2058        if ($#{$difftree} > 10) {
2059                print(($#{$difftree} + 1) . " files changed:\n");
2060        }
2061        print "</div>\n";
2062
2063        print "<table class=\"diff_tree\">\n";
2064        my $alternate = 1;
2065        my $patchno = 0;
2066        foreach my $line (@{$difftree}) {
2067                my %diff = parse_difftree_raw_line($line);
2068
2069                if ($alternate) {
2070                        print "<tr class=\"dark\">\n";
2071                } else {
2072                        print "<tr class=\"light\">\n";
2073                }
2074                $alternate ^= 1;
2075
2076                my ($to_mode_oct, $to_mode_str, $to_file_type);
2077                my ($from_mode_oct, $from_mode_str, $from_file_type);
2078                if ($diff{'to_mode'} ne ('0' x 6)) {
2079                        $to_mode_oct = oct $diff{'to_mode'};
2080                        if (S_ISREG($to_mode_oct)) { # only for regular file
2081                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2082                        }
2083                        $to_file_type = file_type($diff{'to_mode'});
2084                }
2085                if ($diff{'from_mode'} ne ('0' x 6)) {
2086                        $from_mode_oct = oct $diff{'from_mode'};
2087                        if (S_ISREG($to_mode_oct)) { # only for regular file
2088                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2089                        }
2090                        $from_file_type = file_type($diff{'from_mode'});
2091                }
2092
2093                if ($diff{'status'} eq "A") { # created
2094                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2095                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2096                        $mode_chng   .= "]</span>";
2097                        print "<td>";
2098                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2099                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2100                                      -class => "list"}, esc_path($diff{'file'}));
2101                        print "</td>\n";
2102                        print "<td>$mode_chng</td>\n";
2103                        print "<td class=\"link\">";
2104                        if ($action eq 'commitdiff') {
2105                                # link to patch
2106                                $patchno++;
2107                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2108                                print " | ";
2109                        }
2110                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2111                                                     hash_base=>$hash, file_name=>$diff{'file'})},
2112                                      "blob") . " | ";
2113                        print "</td>\n";
2114
2115                } elsif ($diff{'status'} eq "D") { # deleted
2116                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2117                        print "<td>";
2118                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2119                                                     hash_base=>$parent, file_name=>$diff{'file'}),
2120                                       -class => "list"}, esc_path($diff{'file'}));
2121                        print "</td>\n";
2122                        print "<td>$mode_chng</td>\n";
2123                        print "<td class=\"link\">";
2124                        if ($action eq 'commitdiff') {
2125                                # link to patch
2126                                $patchno++;
2127                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2128                                print " | ";
2129                        }
2130                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2131                                                     hash_base=>$parent, file_name=>$diff{'file'})},
2132                                      "blob") . " | ";
2133                        if ($have_blame) {
2134                                print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2135                                                             file_name=>$diff{'file'})},
2136                                              "blame") . " | ";
2137                        }
2138                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2139                                                     file_name=>$diff{'file'})},
2140                                      "history");
2141                        print "</td>\n";
2142
2143                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
2144                        my $mode_chnge = "";
2145                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2146                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
2147                                if ($from_file_type != $to_file_type) {
2148                                        $mode_chnge .= " from $from_file_type to $to_file_type";
2149                                }
2150                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
2151                                        if ($from_mode_str && $to_mode_str) {
2152                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2153                                        } elsif ($to_mode_str) {
2154                                                $mode_chnge .= " mode: $to_mode_str";
2155                                        }
2156                                }
2157                                $mode_chnge .= "]</span>\n";
2158                        }
2159                        print "<td>";
2160                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2161                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2162                                      -class => "list"}, esc_path($diff{'file'}));
2163                        print "</td>\n";
2164                        print "<td>$mode_chnge</td>\n";
2165                        print "<td class=\"link\">";
2166                        if ($action eq 'commitdiff') {
2167                                # link to patch
2168                                $patchno++;
2169                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2170                                      " | ";
2171                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2172                                # "commit" view and modified file (not onlu mode changed)
2173                                print $cgi->a({-href => href(action=>"blobdiff",
2174                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2175                                                             hash_base=>$hash, hash_parent_base=>$parent,
2176                                                             file_name=>$diff{'file'})},
2177                                              "diff") .
2178                                      " | ";
2179                        }
2180                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2181                                                     hash_base=>$hash, file_name=>$diff{'file'})},
2182                                       "blob") . " | ";
2183                        if ($have_blame) {
2184                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2185                                                             file_name=>$diff{'file'})},
2186                                              "blame") . " | ";
2187                        }
2188                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2189                                                     file_name=>$diff{'file'})},
2190                                      "history");
2191                        print "</td>\n";
2192
2193                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
2194                        my %status_name = ('R' => 'moved', 'C' => 'copied');
2195                        my $nstatus = $status_name{$diff{'status'}};
2196                        my $mode_chng = "";
2197                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2198                                # mode also for directories, so we cannot use $to_mode_str
2199                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2200                        }
2201                        print "<td>" .
2202                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2203                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
2204                                      -class => "list"}, esc_path($diff{'to_file'})) . "</td>\n" .
2205                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2206                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2207                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
2208                                      -class => "list"}, esc_path($diff{'from_file'})) .
2209                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2210                              "<td class=\"link\">";
2211                        if ($action eq 'commitdiff') {
2212                                # link to patch
2213                                $patchno++;
2214                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2215                                      " | ";
2216                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2217                                # "commit" view and modified file (not only pure rename or copy)
2218                                print $cgi->a({-href => href(action=>"blobdiff",
2219                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2220                                                             hash_base=>$hash, hash_parent_base=>$parent,
2221                                                             file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2222                                              "diff") .
2223                                      " | ";
2224                        }
2225                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2226                                                     hash_base=>$parent, file_name=>$diff{'to_file'})},
2227                                      "blob") . " | ";
2228                        if ($have_blame) {
2229                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2230                                                             file_name=>$diff{'to_file'})},
2231                                              "blame") . " | ";
2232                        }
2233                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2234                                                    file_name=>$diff{'to_file'})},
2235                                      "history");
2236                        print "</td>\n";
2237
2238                } # we should not encounter Unmerged (U) or Unknown (X) status
2239                print "</tr>\n";
2240        }
2241        print "</table>\n";
2242}
2243
2244sub git_patchset_body {
2245        my ($fd, $difftree, $hash, $hash_parent) = @_;
2246
2247        my $patch_idx = 0;
2248        my $patch_line;
2249        my $diffinfo;
2250        my (%from, %to);
2251        my ($from_id, $to_id);
2252
2253        print "<div class=\"patchset\">\n";
2254
2255        # skip to first patch
2256        while ($patch_line = <$fd>) {
2257                chomp $patch_line;
2258
2259                last if ($patch_line =~ m/^diff /);
2260        }
2261
2262 PATCH:
2263        while ($patch_line) {
2264                my @diff_header;
2265
2266                # git diff header
2267                #assert($patch_line =~ m/^diff /) if DEBUG;
2268                #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
2269                push @diff_header, $patch_line;
2270
2271                # extended diff header
2272        EXTENDED_HEADER:
2273                while ($patch_line = <$fd>) {
2274                        chomp $patch_line;
2275
2276                        last EXTENDED_HEADER if ($patch_line =~ m/^--- /);
2277
2278                        if ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
2279                                $from_id = $1;
2280                                $to_id   = $2;
2281                        }
2282
2283                        push @diff_header, $patch_line;
2284                }
2285                #last PATCH unless $patch_line;
2286                my $last_patch_line = $patch_line;
2287
2288                # check if current patch belong to current raw line
2289                # and parse raw git-diff line if needed
2290                if (defined $diffinfo &&
2291                    $diffinfo->{'from_id'} eq $from_id &&
2292                    $diffinfo->{'to_id'}   eq $to_id) {
2293                        # this is split patch
2294                        print "<div class=\"patch cont\">\n";
2295                } else {
2296                        # advance raw git-diff output if needed
2297                        $patch_idx++ if defined $diffinfo;
2298
2299                        # read and prepare patch information
2300                        if (ref($difftree->[$patch_idx]) eq "HASH") {
2301                                # pre-parsed (or generated by hand)
2302                                $diffinfo = $difftree->[$patch_idx];
2303                        } else {
2304                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2305                        }
2306                        $from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2307                        $to{'file'}   = $diffinfo->{'to_file'}   || $diffinfo->{'file'};
2308                        if ($diffinfo->{'status'} ne "A") { # not new (added) file
2309                                $from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2310                                                     hash=>$diffinfo->{'from_id'},
2311                                                     file_name=>$from{'file'});
2312                        }
2313                        if ($diffinfo->{'status'} ne "D") { # not deleted file
2314                                $to{'href'} = href(action=>"blob", hash_base=>$hash,
2315                                                   hash=>$diffinfo->{'to_id'},
2316                                                   file_name=>$to{'file'});
2317                        }
2318                        # this is first patch for raw difftree line with $patch_idx index
2319                        # we index @$difftree array from 0, but number patches from 1
2320                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2321                }
2322
2323                # print "git diff" header
2324                $patch_line = shift @diff_header;
2325                $patch_line =~ s!^(diff (.*?) )"?a/.*$!$1!;
2326                if ($from{'href'}) {
2327                        $patch_line .= $cgi->a({-href => $from{'href'}, -class => "path"},
2328                                               'a/' . esc_path($from{'file'}));
2329                } else { # file was added
2330                        $patch_line .= 'a/' . esc_path($from{'file'});
2331                }
2332                $patch_line .= ' ';
2333                if ($to{'href'}) {
2334                        $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2335                                               'b/' . esc_path($to{'file'}));
2336                } else { # file was deleted
2337                        $patch_line .= 'b/' . esc_path($to{'file'});
2338                }
2339                print "<div class=\"diff header\">$patch_line</div>\n";
2340
2341                # print extended diff header
2342                print "<div class=\"diff extended_header\">\n" if (@diff_header > 0);
2343        EXTENDED_HEADER:
2344                foreach $patch_line (@diff_header) {
2345                        # match <path>
2346                        if ($patch_line =~ s!^((copy|rename) from ).*$!$1! && $from{'href'}) {
2347                                $patch_line .= $cgi->a({-href=>$from{'href'}, -class=>"path"},
2348                                                        esc_path($from{'file'}));
2349                        }
2350                        if ($patch_line =~ s!^((copy|rename) to ).*$!$1! && $to{'href'}) {
2351                                $patch_line = $cgi->a({-href=>$to{'href'}, -class=>"path"},
2352                                                      esc_path($to{'file'}));
2353                        }
2354                        # match <mode>
2355                        if ($patch_line =~ m/\s(\d{6})$/) {
2356                                $patch_line .= '<span class="info"> (' .
2357                                               file_type_long($1) .
2358                                               ')</span>';
2359                        }
2360                        # match <hash>
2361                        if ($patch_line =~ m/^index/) {
2362                                my ($from_link, $to_link);
2363                                if ($from{'href'}) {
2364                                        $from_link = $cgi->a({-href=>$from{'href'}, -class=>"hash"},
2365                                                             substr($diffinfo->{'from_id'},0,7));
2366                                } else {
2367                                        $from_link = '0' x 7;
2368                                }
2369                                if ($to{'href'}) {
2370                                        $to_link = $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2371                                                           substr($diffinfo->{'to_id'},0,7));
2372                                } else {
2373                                        $to_link = '0' x 7;
2374                                }
2375                                #affirm {
2376                                #       my ($from_hash, $to_hash) =
2377                                #               ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/);
2378                                #       my ($from_id, $to_id) =
2379                                #               ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2380                                #       ($from_hash eq $from_id) && ($to_hash eq $to_id);
2381                                #} if DEBUG;
2382                                my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2383                                $patch_line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
2384                        }
2385                        print $patch_line . "<br/>\n";
2386                }
2387                print "</div>\n"  if (@diff_header > 0); # class="diff extended_header"
2388
2389                # from-file/to-file diff header
2390                $patch_line = $last_patch_line;
2391                #assert($patch_line =~ m/^---/) if DEBUG;
2392                if ($from{'href'}) {
2393                        $patch_line = '--- a/' .
2394                                      $cgi->a({-href=>$from{'href'}, -class=>"path"},
2395                                              esc_path($from{'file'}));
2396                }
2397                print "<div class=\"diff from_file\">$patch_line</div>\n";
2398
2399                $patch_line = <$fd>;
2400                #last PATCH unless $patch_line;
2401                chomp $patch_line;
2402
2403                #assert($patch_line =~ m/^+++/) if DEBUG;
2404                if ($to{'href'}) {
2405                        $patch_line = '+++ b/' .
2406                                      $cgi->a({-href=>$to{'href'}, -class=>"path"},
2407                                              esc_path($to{'file'}));
2408                }
2409                print "<div class=\"diff to_file\">$patch_line</div>\n";
2410
2411                # the patch itself
2412        LINE:
2413                while ($patch_line = <$fd>) {
2414                        chomp $patch_line;
2415
2416                        next PATCH if ($patch_line =~ m/^diff /);
2417
2418                        print format_diff_line($patch_line, \%from, \%to);
2419                }
2420
2421        } continue {
2422                print "</div>\n"; # class="patch"
2423        }
2424
2425        print "</div>\n"; # class="patchset"
2426}
2427
2428# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2429
2430sub git_project_list_body {
2431        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2432
2433        my ($check_forks) = gitweb_check_feature('forks');
2434
2435        my @projects;
2436        foreach my $pr (@$projlist) {
2437                my (@aa) = git_get_last_activity($pr->{'path'});
2438                unless (@aa) {
2439                        next;
2440                }
2441                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2442                if (!defined $pr->{'descr'}) {
2443                        my $descr = git_get_project_description($pr->{'path'}) || "";
2444                        $pr->{'descr_long'} = to_utf8($descr);
2445                        $pr->{'descr'} = chop_str($descr, 25, 5);
2446                }
2447                if (!defined $pr->{'owner'}) {
2448                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2449                }
2450                if ($check_forks) {
2451                        my $pname = $pr->{'path'};
2452                        if (($pname =~ s/\.git$//) &&
2453                            ($pname !~ /\/$/) &&
2454                            (-d "$projectroot/$pname")) {
2455                                $pr->{'forks'} = "-d $projectroot/$pname";
2456                        }
2457                        else {
2458                                $pr->{'forks'} = 0;
2459                        }
2460                }
2461                push @projects, $pr;
2462        }
2463
2464        $order ||= "project";
2465        $from = 0 unless defined $from;
2466        $to = $#projects if (!defined $to || $#projects < $to);
2467
2468        print "<table class=\"project_list\">\n";
2469        unless ($no_header) {
2470                print "<tr>\n";
2471                if ($check_forks) {
2472                        print "<th></th>\n";
2473                }
2474                if ($order eq "project") {
2475                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2476                        print "<th>Project</th>\n";
2477                } else {
2478                        print "<th>" .
2479                              $cgi->a({-href => href(project=>undef, order=>'project'),
2480                                       -class => "header"}, "Project") .
2481                              "</th>\n";
2482                }
2483                if ($order eq "descr") {
2484                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2485                        print "<th>Description</th>\n";
2486                } else {
2487                        print "<th>" .
2488                              $cgi->a({-href => href(project=>undef, order=>'descr'),
2489                                       -class => "header"}, "Description") .
2490                              "</th>\n";
2491                }
2492                if ($order eq "owner") {
2493                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2494                        print "<th>Owner</th>\n";
2495                } else {
2496                        print "<th>" .
2497                              $cgi->a({-href => href(project=>undef, order=>'owner'),
2498                                       -class => "header"}, "Owner") .
2499                              "</th>\n";
2500                }
2501                if ($order eq "age") {
2502                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2503                        print "<th>Last Change</th>\n";
2504                } else {
2505                        print "<th>" .
2506                              $cgi->a({-href => href(project=>undef, order=>'age'),
2507                                       -class => "header"}, "Last Change") .
2508                              "</th>\n";
2509                }
2510                print "<th></th>\n" .
2511                      "</tr>\n";
2512        }
2513        my $alternate = 1;
2514        for (my $i = $from; $i <= $to; $i++) {
2515                my $pr = $projects[$i];
2516                if ($alternate) {
2517                        print "<tr class=\"dark\">\n";
2518                } else {
2519                        print "<tr class=\"light\">\n";
2520                }
2521                $alternate ^= 1;
2522                if ($check_forks) {
2523                        print "<td>";
2524                        if ($pr->{'forks'}) {
2525                                print "<!-- $pr->{'forks'} -->\n";
2526                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2527                        }
2528                        print "</td>\n";
2529                }
2530                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2531                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2532                      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2533                                        -class => "list", -title => $pr->{'descr_long'}},
2534                                        esc_html($pr->{'descr'})) . "</td>\n" .
2535                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2536                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2537                      $pr->{'age_string'} . "</td>\n" .
2538                      "<td class=\"link\">" .
2539                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2540                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2541                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2542                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2543                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
2544                      "</td>\n" .
2545                      "</tr>\n";
2546        }
2547        if (defined $extra) {
2548                print "<tr>\n";
2549                if ($check_forks) {
2550                        print "<td></td>\n";
2551                }
2552                print "<td colspan=\"5\">$extra</td>\n" .
2553                      "</tr>\n";
2554        }
2555        print "</table>\n";
2556}
2557
2558sub git_shortlog_body {
2559        # uses global variable $project
2560        my ($revlist, $from, $to, $refs, $extra) = @_;
2561
2562        $from = 0 unless defined $from;
2563        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2564
2565        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2566        my $alternate = 1;
2567        for (my $i = $from; $i <= $to; $i++) {
2568                my $commit = $revlist->[$i];
2569                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2570                my $ref = format_ref_marker($refs, $commit);
2571                my %co = parse_commit($commit);
2572                if ($alternate) {
2573                        print "<tr class=\"dark\">\n";
2574                } else {
2575                        print "<tr class=\"light\">\n";
2576                }
2577                $alternate ^= 1;
2578                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2579                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2580                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2581                      "<td>";
2582                print format_subject_html($co{'title'}, $co{'title_short'},
2583                                          href(action=>"commit", hash=>$commit), $ref);
2584                print "</td>\n" .
2585                      "<td class=\"link\">" .
2586                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2587                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2588                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2589                if (gitweb_have_snapshot()) {
2590                        print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2591                }
2592                print "</td>\n" .
2593                      "</tr>\n";
2594        }
2595        if (defined $extra) {
2596                print "<tr>\n" .
2597                      "<td colspan=\"4\">$extra</td>\n" .
2598                      "</tr>\n";
2599        }
2600        print "</table>\n";
2601}
2602
2603sub git_history_body {
2604        # Warning: assumes constant type (blob or tree) during history
2605        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2606
2607        $from = 0 unless defined $from;
2608        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2609
2610        print "<table class=\"history\" cellspacing=\"0\">\n";
2611        my $alternate = 1;
2612        for (my $i = $from; $i <= $to; $i++) {
2613                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2614                        next;
2615                }
2616
2617                my $commit = $1;
2618                my %co = parse_commit($commit);
2619                if (!%co) {
2620                        next;
2621                }
2622
2623                my $ref = format_ref_marker($refs, $commit);
2624
2625                if ($alternate) {
2626                        print "<tr class=\"dark\">\n";
2627                } else {
2628                        print "<tr class=\"light\">\n";
2629                }
2630                $alternate ^= 1;
2631                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2632                      # shortlog uses      chop_str($co{'author_name'}, 10)
2633                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2634                      "<td>";
2635                # originally git_history used chop_str($co{'title'}, 50)
2636                print format_subject_html($co{'title'}, $co{'title_short'},
2637                                          href(action=>"commit", hash=>$commit), $ref);
2638                print "</td>\n" .
2639                      "<td class=\"link\">" .
2640                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2641                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2642
2643                if ($ftype eq 'blob') {
2644                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2645                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2646                        if (defined $blob_current && defined $blob_parent &&
2647                                        $blob_current ne $blob_parent) {
2648                                print " | " .
2649                                        $cgi->a({-href => href(action=>"blobdiff",
2650                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2651                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2652                                                               file_name=>$file_name)},
2653                                                "diff to current");
2654                        }
2655                }
2656                print "</td>\n" .
2657                      "</tr>\n";
2658        }
2659        if (defined $extra) {
2660                print "<tr>\n" .
2661                      "<td colspan=\"4\">$extra</td>\n" .
2662                      "</tr>\n";
2663        }
2664        print "</table>\n";
2665}
2666
2667sub git_tags_body {
2668        # uses global variable $project
2669        my ($taglist, $from, $to, $extra) = @_;
2670        $from = 0 unless defined $from;
2671        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2672
2673        print "<table class=\"tags\" cellspacing=\"0\">\n";
2674        my $alternate = 1;
2675        for (my $i = $from; $i <= $to; $i++) {
2676                my $entry = $taglist->[$i];
2677                my %tag = %$entry;
2678                my $comment = $tag{'subject'};
2679                my $comment_short;
2680                if (defined $comment) {
2681                        $comment_short = chop_str($comment, 30, 5);
2682                }
2683                if ($alternate) {
2684                        print "<tr class=\"dark\">\n";
2685                } else {
2686                        print "<tr class=\"light\">\n";
2687                }
2688                $alternate ^= 1;
2689                print "<td><i>$tag{'age'}</i></td>\n" .
2690                      "<td>" .
2691                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2692                               -class => "list name"}, esc_html($tag{'name'})) .
2693                      "</td>\n" .
2694                      "<td>";
2695                if (defined $comment) {
2696                        print format_subject_html($comment, $comment_short,
2697                                                  href(action=>"tag", hash=>$tag{'id'}));
2698                }
2699                print "</td>\n" .
2700                      "<td class=\"selflink\">";
2701                if ($tag{'type'} eq "tag") {
2702                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2703                } else {
2704                        print "&nbsp;";
2705                }
2706                print "</td>\n" .
2707                      "<td class=\"link\">" . " | " .
2708                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2709                if ($tag{'reftype'} eq "commit") {
2710                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2711                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
2712                } elsif ($tag{'reftype'} eq "blob") {
2713                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2714                }
2715                print "</td>\n" .
2716                      "</tr>";
2717        }
2718        if (defined $extra) {
2719                print "<tr>\n" .
2720                      "<td colspan=\"5\">$extra</td>\n" .
2721                      "</tr>\n";
2722        }
2723        print "</table>\n";
2724}
2725
2726sub git_heads_body {
2727        # uses global variable $project
2728        my ($headlist, $head, $from, $to, $extra) = @_;
2729        $from = 0 unless defined $from;
2730        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2731
2732        print "<table class=\"heads\" cellspacing=\"0\">\n";
2733        my $alternate = 1;
2734        for (my $i = $from; $i <= $to; $i++) {
2735                my $entry = $headlist->[$i];
2736                my %ref = %$entry;
2737                my $curr = $ref{'id'} eq $head;
2738                if ($alternate) {
2739                        print "<tr class=\"dark\">\n";
2740                } else {
2741                        print "<tr class=\"light\">\n";
2742                }
2743                $alternate ^= 1;
2744                print "<td><i>$ref{'age'}</i></td>\n" .
2745                      ($curr ? "<td class=\"current_head\">" : "<td>") .
2746                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
2747                               -class => "list name"},esc_html($ref{'name'})) .
2748                      "</td>\n" .
2749                      "<td class=\"link\">" .
2750                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
2751                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
2752                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
2753                      "</td>\n" .
2754                      "</tr>";
2755        }
2756        if (defined $extra) {
2757                print "<tr>\n" .
2758                      "<td colspan=\"3\">$extra</td>\n" .
2759                      "</tr>\n";
2760        }
2761        print "</table>\n";
2762}
2763
2764## ======================================================================
2765## ======================================================================
2766## actions
2767
2768sub git_project_list {
2769        my $order = $cgi->param('o');
2770        if (defined $order && $order !~ m/project|descr|owner|age/) {
2771                die_error(undef, "Unknown order parameter");
2772        }
2773
2774        my @list = git_get_projects_list();
2775        if (!@list) {
2776                die_error(undef, "No projects found");
2777        }
2778
2779        git_header_html();
2780        if (-f $home_text) {
2781                print "<div class=\"index_include\">\n";
2782                open (my $fd, $home_text);
2783                print <$fd>;
2784                close $fd;
2785                print "</div>\n";
2786        }
2787        git_project_list_body(\@list, $order);
2788        git_footer_html();
2789}
2790
2791sub git_forks {
2792        my $order = $cgi->param('o');
2793        if (defined $order && $order !~ m/project|descr|owner|age/) {
2794                die_error(undef, "Unknown order parameter");
2795        }
2796
2797        my @list = git_get_projects_list($project);
2798        if (!@list) {
2799                die_error(undef, "No forks found");
2800        }
2801
2802        git_header_html();
2803        git_print_page_nav('','');
2804        git_print_header_div('summary', "$project forks");
2805        git_project_list_body(\@list, $order);
2806        git_footer_html();
2807}
2808
2809sub git_project_index {
2810        my @projects = git_get_projects_list($project);
2811
2812        print $cgi->header(
2813                -type => 'text/plain',
2814                -charset => 'utf-8',
2815                -content_disposition => 'inline; filename="index.aux"');
2816
2817        foreach my $pr (@projects) {
2818                if (!exists $pr->{'owner'}) {
2819                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2820                }
2821
2822                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2823                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2824                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2825                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2826                $path  =~ s/ /\+/g;
2827                $owner =~ s/ /\+/g;
2828
2829                print "$path $owner\n";
2830        }
2831}
2832
2833sub git_summary {
2834        my $descr = git_get_project_description($project) || "none";
2835        my $head = git_get_head_hash($project);
2836        my %co = parse_commit($head);
2837        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2838
2839        my $owner = git_get_project_owner($project);
2840
2841        my $refs = git_get_references();
2842        my @taglist  = git_get_tags_list(15);
2843        my @headlist = git_get_heads_list(15);
2844        my @forklist;
2845        my ($check_forks) = gitweb_check_feature('forks');
2846
2847        if ($check_forks) {
2848                @forklist = git_get_projects_list($project);
2849        }
2850
2851        git_header_html();
2852        git_print_page_nav('summary','', $head);
2853
2854        print "<div class=\"title\">&nbsp;</div>\n";
2855        print "<table cellspacing=\"0\">\n" .
2856              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2857              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2858              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2859        # use per project git URL list in $projectroot/$project/cloneurl
2860        # or make project git URL from git base URL and project name
2861        my $url_tag = "URL";
2862        my @url_list = git_get_project_url_list($project);
2863        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2864        foreach my $git_url (@url_list) {
2865                next unless $git_url;
2866                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2867                $url_tag = "";
2868        }
2869        print "</table>\n";
2870
2871        if (-s "$projectroot/$project/README.html") {
2872                if (open my $fd, "$projectroot/$project/README.html") {
2873                        print "<div class=\"title\">readme</div>\n";
2874                        print $_ while (<$fd>);
2875                        close $fd;
2876                }
2877        }
2878
2879        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2880                git_get_head_hash($project), "--"
2881                or die_error(undef, "Open git-rev-list failed");
2882        my @revlist = map { chomp; $_ } <$fd>;
2883        close $fd;
2884        git_print_header_div('shortlog');
2885        git_shortlog_body(\@revlist, 0, 15, $refs,
2886                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2887
2888        if (@taglist) {
2889                git_print_header_div('tags');
2890                git_tags_body(\@taglist, 0, 15,
2891                              $cgi->a({-href => href(action=>"tags")}, "..."));
2892        }
2893
2894        if (@headlist) {
2895                git_print_header_div('heads');
2896                git_heads_body(\@headlist, $head, 0, 15,
2897                               $cgi->a({-href => href(action=>"heads")}, "..."));
2898        }
2899
2900        if (@forklist) {
2901                git_print_header_div('forks');
2902                git_project_list_body(\@forklist, undef, 0, 15,
2903                                      $cgi->a({-href => href(action=>"forks")}, "..."),
2904                                      'noheader');
2905        }
2906
2907        git_footer_html();
2908}
2909
2910sub git_tag {
2911        my $head = git_get_head_hash($project);
2912        git_header_html();
2913        git_print_page_nav('','', $head,undef,$head);
2914        my %tag = parse_tag($hash);
2915        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2916        print "<div class=\"title_text\">\n" .
2917              "<table cellspacing=\"0\">\n" .
2918              "<tr>\n" .
2919              "<td>object</td>\n" .
2920              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2921                               $tag{'object'}) . "</td>\n" .
2922              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2923                                              $tag{'type'}) . "</td>\n" .
2924              "</tr>\n";
2925        if (defined($tag{'author'})) {
2926                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2927                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2928                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2929                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2930                        "</td></tr>\n";
2931        }
2932        print "</table>\n\n" .
2933              "</div>\n";
2934        print "<div class=\"page_body\">";
2935        my $comment = $tag{'comment'};
2936        foreach my $line (@$comment) {
2937                chomp $line;
2938                print esc_html($line, -nbsp=>1) . "<br/>\n";
2939        }
2940        print "</div>\n";
2941        git_footer_html();
2942}
2943
2944sub git_blame2 {
2945        my $fd;
2946        my $ftype;
2947
2948        my ($have_blame) = gitweb_check_feature('blame');
2949        if (!$have_blame) {
2950                die_error('403 Permission denied', "Permission denied");
2951        }
2952        die_error('404 Not Found', "File name not defined") if (!$file_name);
2953        $hash_base ||= git_get_head_hash($project);
2954        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2955        my %co = parse_commit($hash_base)
2956                or die_error(undef, "Reading commit failed");
2957        if (!defined $hash) {
2958                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2959                        or die_error(undef, "Error looking up file");
2960        }
2961        $ftype = git_get_type($hash);
2962        if ($ftype !~ "blob") {
2963                die_error("400 Bad Request", "Object is not a blob");
2964        }
2965        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
2966              $file_name, $hash_base)
2967                or die_error(undef, "Open git-blame failed");
2968        git_header_html();
2969        my $formats_nav =
2970                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2971                        "blob") .
2972                " | " .
2973                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2974                        "history") .
2975                " | " .
2976                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2977                        "HEAD");
2978        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2979        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2980        git_print_page_path($file_name, $ftype, $hash_base);
2981        my @rev_color = (qw(light2 dark2));
2982        my $num_colors = scalar(@rev_color);
2983        my $current_color = 0;
2984        my $last_rev;
2985        print <<HTML;
2986<div class="page_body">
2987<table class="blame">
2988<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2989HTML
2990        my %metainfo = ();
2991        while (1) {
2992                $_ = <$fd>;
2993                last unless defined $_;
2994                my ($full_rev, $orig_lineno, $lineno, $group_size) =
2995                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
2996                if (!exists $metainfo{$full_rev}) {
2997                        $metainfo{$full_rev} = {};
2998                }
2999                my $meta = $metainfo{$full_rev};
3000                while (<$fd>) {
3001                        last if (s/^\t//);
3002                        if (/^(\S+) (.*)$/) {
3003                                $meta->{$1} = $2;
3004                        }
3005                }
3006                my $data = $_;
3007                chomp $data;
3008                my $rev = substr($full_rev, 0, 8);
3009                my $author = $meta->{'author'};
3010                my %date = parse_date($meta->{'author-time'},
3011                                      $meta->{'author-tz'});
3012                my $date = $date{'iso-tz'};
3013                if ($group_size) {
3014                        $current_color = ++$current_color % $num_colors;
3015                }
3016                print "<tr class=\"$rev_color[$current_color]\">\n";
3017                if ($group_size) {
3018                        print "<td class=\"sha1\"";
3019                        print " title=\"". esc_html($author) . ", $date\"";
3020                        print " rowspan=\"$group_size\"" if ($group_size > 1);
3021                        print ">";
3022                        print $cgi->a({-href => href(action=>"commit",
3023                                                     hash=>$full_rev,
3024                                                     file_name=>$file_name)},
3025                                      esc_html($rev));
3026                        print "</td>\n";
3027                }
3028                my $blamed = href(action => 'blame',
3029                                  file_name => $meta->{'filename'},
3030                                  hash_base => $full_rev);
3031                print "<td class=\"linenr\">";
3032                print $cgi->a({ -href => "$blamed#l$orig_lineno",
3033                                -id => "l$lineno",
3034                                -class => "linenr" },
3035                              esc_html($lineno));
3036                print "</td>";
3037                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
3038                print "</tr>\n";
3039        }
3040        print "</table>\n";
3041        print "</div>";
3042        close $fd
3043                or print "Reading blob failed\n";
3044        git_footer_html();
3045}
3046
3047sub git_blame {
3048        my $fd;
3049
3050        my ($have_blame) = gitweb_check_feature('blame');
3051        if (!$have_blame) {
3052                die_error('403 Permission denied', "Permission denied");
3053        }
3054        die_error('404 Not Found', "File name not defined") if (!$file_name);
3055        $hash_base ||= git_get_head_hash($project);
3056        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3057        my %co = parse_commit($hash_base)
3058                or die_error(undef, "Reading commit failed");
3059        if (!defined $hash) {
3060                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3061                        or die_error(undef, "Error lookup file");
3062        }
3063        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
3064                or die_error(undef, "Open git-annotate failed");
3065        git_header_html();
3066        my $formats_nav =
3067                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3068                        "blob") .
3069                " | " .
3070                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3071                        "history") .
3072                " | " .
3073                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3074                        "HEAD");
3075        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3076        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3077        git_print_page_path($file_name, 'blob', $hash_base);
3078        print "<div class=\"page_body\">\n";
3079        print <<HTML;
3080<table class="blame">
3081  <tr>
3082    <th>Commit</th>
3083    <th>Age</th>
3084    <th>Author</th>
3085    <th>Line</th>
3086    <th>Data</th>
3087  </tr>
3088HTML
3089        my @line_class = (qw(light dark));
3090        my $line_class_len = scalar (@line_class);
3091        my $line_class_num = $#line_class;
3092        while (my $line = <$fd>) {
3093                my $long_rev;
3094                my $short_rev;
3095                my $author;
3096                my $time;
3097                my $lineno;
3098                my $data;
3099                my $age;
3100                my $age_str;
3101                my $age_class;
3102
3103                chomp $line;
3104                $line_class_num = ($line_class_num + 1) % $line_class_len;
3105
3106                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
3107                        $long_rev = $1;
3108                        $author   = $2;
3109                        $time     = $3;
3110                        $lineno   = $4;
3111                        $data     = $5;
3112                } else {
3113                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
3114                        next;
3115                }
3116                $short_rev  = substr ($long_rev, 0, 8);
3117                $age        = time () - $time;
3118                $age_str    = age_string ($age);
3119                $age_str    =~ s/ /&nbsp;/g;
3120                $age_class  = age_class($age);
3121                $author     = esc_html ($author);
3122                $author     =~ s/ /&nbsp;/g;
3123
3124                $data = untabify($data);
3125                $data = esc_html ($data);
3126
3127                print <<HTML;
3128  <tr class="$line_class[$line_class_num]">
3129    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
3130    <td class="$age_class">$age_str</td>
3131    <td>$author</td>
3132    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
3133    <td class="pre">$data</td>
3134  </tr>
3135HTML
3136        } # while (my $line = <$fd>)
3137        print "</table>\n\n";
3138        close $fd
3139                or print "Reading blob failed.\n";
3140        print "</div>";
3141        git_footer_html();
3142}
3143
3144sub git_tags {
3145        my $head = git_get_head_hash($project);
3146        git_header_html();
3147        git_print_page_nav('','', $head,undef,$head);
3148        git_print_header_div('summary', $project);
3149
3150        my @tagslist = git_get_tags_list();
3151        if (@tagslist) {
3152                git_tags_body(\@tagslist);
3153        }
3154        git_footer_html();
3155}
3156
3157sub git_heads {
3158        my $head = git_get_head_hash($project);
3159        git_header_html();
3160        git_print_page_nav('','', $head,undef,$head);
3161        git_print_header_div('summary', $project);
3162
3163        my @headslist = git_get_heads_list();
3164        if (@headslist) {
3165                git_heads_body(\@headslist, $head);
3166        }
3167        git_footer_html();
3168}
3169
3170sub git_blob_plain {
3171        my $expires;
3172
3173        if (!defined $hash) {
3174                if (defined $file_name) {
3175                        my $base = $hash_base || git_get_head_hash($project);
3176                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3177                                or die_error(undef, "Error lookup file");
3178                } else {
3179                        die_error(undef, "No file name defined");
3180                }
3181        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3182                # blobs defined by non-textual hash id's can be cached
3183                $expires = "+1d";
3184        }
3185
3186        my $type = shift;
3187        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3188                or die_error(undef, "Couldn't cat $file_name, $hash");
3189
3190        $type ||= blob_mimetype($fd, $file_name);
3191
3192        # save as filename, even when no $file_name is given
3193        my $save_as = "$hash";
3194        if (defined $file_name) {
3195                $save_as = $file_name;
3196        } elsif ($type =~ m/^text\//) {
3197                $save_as .= '.txt';
3198        }
3199
3200        print $cgi->header(
3201                -type => "$type",
3202                -expires=>$expires,
3203                -content_disposition => 'inline; filename="' . "$save_as" . '"');
3204        undef $/;
3205        binmode STDOUT, ':raw';
3206        print <$fd>;
3207        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3208        $/ = "\n";
3209        close $fd;
3210}
3211
3212sub git_blob {
3213        my $expires;
3214
3215        if (!defined $hash) {
3216                if (defined $file_name) {
3217                        my $base = $hash_base || git_get_head_hash($project);
3218                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3219                                or die_error(undef, "Error lookup file");
3220                } else {
3221                        die_error(undef, "No file name defined");
3222                }
3223        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3224                # blobs defined by non-textual hash id's can be cached
3225                $expires = "+1d";
3226        }
3227
3228        my ($have_blame) = gitweb_check_feature('blame');
3229        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3230                or die_error(undef, "Couldn't cat $file_name, $hash");
3231        my $mimetype = blob_mimetype($fd, $file_name);
3232        if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)!) {
3233                close $fd;
3234                return git_blob_plain($mimetype);
3235        }
3236        # we can have blame only for text/* mimetype
3237        $have_blame &&= ($mimetype =~ m!^text/!);
3238
3239        git_header_html(undef, $expires);
3240        my $formats_nav = '';
3241        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3242                if (defined $file_name) {
3243                        if ($have_blame) {
3244                                $formats_nav .=
3245                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3246                                                               hash=>$hash, file_name=>$file_name)},
3247                                                "blame") .
3248                                        " | ";
3249                        }
3250                        $formats_nav .=
3251                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3252                                                       hash=>$hash, file_name=>$file_name)},
3253                                        "history") .
3254                                " | " .
3255                                $cgi->a({-href => href(action=>"blob_plain",
3256                                                       hash=>$hash, file_name=>$file_name)},
3257                                        "raw") .
3258                                " | " .
3259                                $cgi->a({-href => href(action=>"blob",
3260                                                       hash_base=>"HEAD", file_name=>$file_name)},
3261                                        "HEAD");
3262                } else {
3263                        $formats_nav .=
3264                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3265                }
3266                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3267                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3268        } else {
3269                print "<div class=\"page_nav\">\n" .
3270                      "<br/><br/></div>\n" .
3271                      "<div class=\"title\">$hash</div>\n";
3272        }
3273        git_print_page_path($file_name, "blob", $hash_base);
3274        print "<div class=\"page_body\">\n";
3275        if ($mimetype =~ m!^text/!) {
3276                my $nr;
3277                while (my $line = <$fd>) {
3278                        chomp $line;
3279                        $nr++;
3280                        $line = untabify($line);
3281                        printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3282                               $nr, $nr, $nr, esc_html($line, -nbsp=>1);
3283                }
3284        } elsif ($mimetype =~ m!^image/!) {
3285                print qq!<img type="$mimetype"!;
3286                if ($file_name) {
3287                        print qq! alt="$file_name" title="$file_name"!;
3288                }
3289                print qq! src="! .
3290                      href(action=>"blob_plain", hash=>$hash,
3291                           hash_base=>$hash_base, file_name=>$file_name) .
3292                      qq!" />\n!;
3293        }
3294        close $fd
3295                or print "Reading blob failed.\n";
3296        print "</div>";
3297        git_footer_html();
3298}
3299
3300sub git_tree {
3301        my $have_snapshot = gitweb_have_snapshot();
3302
3303        if (!defined $hash_base) {
3304                $hash_base = "HEAD";
3305        }
3306        if (!defined $hash) {
3307                if (defined $file_name) {
3308                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3309                } else {
3310                        $hash = $hash_base;
3311                }
3312        }
3313        $/ = "\0";
3314        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3315                or die_error(undef, "Open git-ls-tree failed");
3316        my @entries = map { chomp; $_ } <$fd>;
3317        close $fd or die_error(undef, "Reading tree failed");
3318        $/ = "\n";
3319
3320        my $refs = git_get_references();
3321        my $ref = format_ref_marker($refs, $hash_base);
3322        git_header_html();
3323        my $basedir = '';
3324        my ($have_blame) = gitweb_check_feature('blame');
3325        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3326                my @views_nav = ();
3327                if (defined $file_name) {
3328                        push @views_nav,
3329                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3330                                                       hash=>$hash, file_name=>$file_name)},
3331                                        "history"),
3332                                $cgi->a({-href => href(action=>"tree",
3333                                                       hash_base=>"HEAD", file_name=>$file_name)},
3334                                        "HEAD"),
3335                }
3336                if ($have_snapshot) {
3337                        # FIXME: Should be available when we have no hash base as well.
3338                        push @views_nav,
3339                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3340                                        "snapshot");
3341                }
3342                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3343                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3344        } else {
3345                undef $hash_base;
3346                print "<div class=\"page_nav\">\n";
3347                print "<br/><br/></div>\n";
3348                print "<div class=\"title\">$hash</div>\n";
3349        }
3350        if (defined $file_name) {
3351                $basedir = $file_name;
3352                if ($basedir ne '' && substr($basedir, -1) ne '/') {
3353                        $basedir .= '/';
3354                }
3355        }
3356        git_print_page_path($file_name, 'tree', $hash_base);
3357        print "<div class=\"page_body\">\n";
3358        print "<table cellspacing=\"0\">\n";
3359        my $alternate = 1;
3360        # '..' (top directory) link if possible
3361        if (defined $hash_base &&
3362            defined $file_name && $file_name =~ m![^/]+$!) {
3363                if ($alternate) {
3364                        print "<tr class=\"dark\">\n";
3365                } else {
3366                        print "<tr class=\"light\">\n";
3367                }
3368                $alternate ^= 1;
3369
3370                my $up = $file_name;
3371                $up =~ s!/?[^/]+$!!;
3372                undef $up unless $up;
3373                # based on git_print_tree_entry
3374                print '<td class="mode">' . mode_str('040000') . "</td>\n";
3375                print '<td class="list">';
3376                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3377                                             file_name=>$up)},
3378                              "..");
3379                print "</td>\n";
3380                print "<td class=\"link\"></td>\n";
3381
3382                print "</tr>\n";
3383        }
3384        foreach my $line (@entries) {
3385                my %t = parse_ls_tree_line($line, -z => 1);
3386
3387                if ($alternate) {
3388                        print "<tr class=\"dark\">\n";
3389                } else {
3390                        print "<tr class=\"light\">\n";
3391                }
3392                $alternate ^= 1;
3393
3394                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3395
3396                print "</tr>\n";
3397        }
3398        print "</table>\n" .
3399              "</div>";
3400        git_footer_html();
3401}
3402
3403sub git_snapshot {
3404        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3405        my $have_snapshot = (defined $ctype && defined $suffix);
3406        if (!$have_snapshot) {
3407                die_error('403 Permission denied', "Permission denied");
3408        }
3409
3410        if (!defined $hash) {
3411                $hash = git_get_head_hash($project);
3412        }
3413
3414        my $filename = basename($project) . "-$hash.tar.$suffix";
3415
3416        print $cgi->header(
3417                -type => 'application/x-tar',
3418                -content_encoding => $ctype,
3419                -content_disposition => 'inline; filename="' . "$filename" . '"',
3420                -status => '200 OK');
3421
3422        my $git = git_cmd_str();
3423        my $name = $project;
3424        $name =~ s/\047/\047\\\047\047/g;
3425        open my $fd, "-|",
3426        "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3427                or die_error(undef, "Execute git-tar-tree failed.");
3428        binmode STDOUT, ':raw';
3429        print <$fd>;
3430        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3431        close $fd;
3432
3433}
3434
3435sub git_log {
3436        my $head = git_get_head_hash($project);
3437        if (!defined $hash) {
3438                $hash = $head;
3439        }
3440        if (!defined $page) {
3441                $page = 0;
3442        }
3443        my $refs = git_get_references();
3444
3445        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3446        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
3447                or die_error(undef, "Open git-rev-list failed");
3448        my @revlist = map { chomp; $_ } <$fd>;
3449        close $fd;
3450
3451        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3452
3453        git_header_html();
3454        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3455
3456        if (!@revlist) {
3457                my %co = parse_commit($hash);
3458
3459                git_print_header_div('summary', $project);
3460                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3461        }
3462        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3463                my $commit = $revlist[$i];
3464                my $ref = format_ref_marker($refs, $commit);
3465                my %co = parse_commit($commit);
3466                next if !%co;
3467                my %ad = parse_date($co{'author_epoch'});
3468                git_print_header_div('commit',
3469                               "<span class=\"age\">$co{'age_string'}</span>" .
3470                               esc_html($co{'title'}) . $ref,
3471                               $commit);
3472                print "<div class=\"title_text\">\n" .
3473                      "<div class=\"log_link\">\n" .
3474                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3475                      " | " .
3476                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3477                      " | " .
3478                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3479                      "<br/>\n" .
3480                      "</div>\n" .
3481                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3482                      "</div>\n";
3483
3484                print "<div class=\"log_body\">\n";
3485                git_print_log($co{'comment'}, -final_empty_line=> 1);
3486                print "</div>\n";
3487        }
3488        git_footer_html();
3489}
3490
3491sub git_commit {
3492        $hash ||= $hash_base || "HEAD";
3493        my %co = parse_commit($hash);
3494        if (!%co) {
3495                die_error(undef, "Unknown commit object");
3496        }
3497        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3498        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3499
3500        my $parent = $co{'parent'};
3501        if (!defined $parent) {
3502                $parent = "--root";
3503        }
3504        open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
3505                @diff_opts, $parent, $hash, "--"
3506                or die_error(undef, "Open git-diff-tree failed");
3507        my @difftree = map { chomp; $_ } <$fd>;
3508        close $fd or die_error(undef, "Reading git-diff-tree failed");
3509
3510        # non-textual hash id's can be cached
3511        my $expires;
3512        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3513                $expires = "+1d";
3514        }
3515        my $refs = git_get_references();
3516        my $ref = format_ref_marker($refs, $co{'id'});
3517
3518        my $have_snapshot = gitweb_have_snapshot();
3519
3520        my @views_nav = ();
3521        if (defined $file_name && defined $co{'parent'}) {
3522                push @views_nav,
3523                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3524                                "blame");
3525        }
3526        git_header_html(undef, $expires);
3527        git_print_page_nav('commit', '',
3528                           $hash, $co{'tree'}, $hash,
3529                           join (' | ', @views_nav));
3530
3531        if (defined $co{'parent'}) {
3532                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3533        } else {
3534                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3535        }
3536        print "<div class=\"title_text\">\n" .
3537              "<table cellspacing=\"0\">\n";
3538        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3539              "<tr>" .
3540              "<td></td><td> $ad{'rfc2822'}";
3541        if ($ad{'hour_local'} < 6) {
3542                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3543                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3544        } else {
3545                printf(" (%02d:%02d %s)",
3546                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3547        }
3548        print "</td>" .
3549              "</tr>\n";
3550        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3551        print "<tr><td></td><td> $cd{'rfc2822'}" .
3552              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3553              "</td></tr>\n";
3554        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3555        print "<tr>" .
3556              "<td>tree</td>" .
3557              "<td class=\"sha1\">" .
3558              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3559                       class => "list"}, $co{'tree'}) .
3560              "</td>" .
3561              "<td class=\"link\">" .
3562              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3563                      "tree");
3564        if ($have_snapshot) {
3565                print " | " .
3566                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3567        }
3568        print "</td>" .
3569              "</tr>\n";
3570        my $parents = $co{'parents'};
3571        foreach my $par (@$parents) {
3572                print "<tr>" .
3573                      "<td>parent</td>" .
3574                      "<td class=\"sha1\">" .
3575                      $cgi->a({-href => href(action=>"commit", hash=>$par),
3576                               class => "list"}, $par) .
3577                      "</td>" .
3578                      "<td class=\"link\">" .
3579                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3580                      " | " .
3581                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3582                      "</td>" .
3583                      "</tr>\n";
3584        }
3585        print "</table>".
3586              "</div>\n";
3587
3588        print "<div class=\"page_body\">\n";
3589        git_print_log($co{'comment'});
3590        print "</div>\n";
3591
3592        git_difftree_body(\@difftree, $hash, $parent);
3593
3594        git_footer_html();
3595}
3596
3597sub git_blobdiff {
3598        my $format = shift || 'html';
3599
3600        my $fd;
3601        my @difftree;
3602        my %diffinfo;
3603        my $expires;
3604
3605        # preparing $fd and %diffinfo for git_patchset_body
3606        # new style URI
3607        if (defined $hash_base && defined $hash_parent_base) {
3608                if (defined $file_name) {
3609                        # read raw output
3610                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3611                                $hash_parent_base, $hash_base,
3612                                "--", $file_name
3613                                or die_error(undef, "Open git-diff-tree failed");
3614                        @difftree = map { chomp; $_ } <$fd>;
3615                        close $fd
3616                                or die_error(undef, "Reading git-diff-tree failed");
3617                        @difftree
3618                                or die_error('404 Not Found', "Blob diff not found");
3619
3620                } elsif (defined $hash &&
3621                         $hash =~ /[0-9a-fA-F]{40}/) {
3622                        # try to find filename from $hash
3623
3624                        # read filtered raw output
3625                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3626                                $hash_parent_base, $hash_base, "--"
3627                                or die_error(undef, "Open git-diff-tree failed");
3628                        @difftree =
3629                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3630                                # $hash == to_id
3631                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3632                                map { chomp; $_ } <$fd>;
3633                        close $fd
3634                                or die_error(undef, "Reading git-diff-tree failed");
3635                        @difftree
3636                                or die_error('404 Not Found', "Blob diff not found");
3637
3638                } else {
3639                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3640                }
3641
3642                if (@difftree > 1) {
3643                        die_error('404 Not Found', "Ambiguous blob diff specification");
3644                }
3645
3646                %diffinfo = parse_difftree_raw_line($difftree[0]);
3647                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3648                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3649
3650                $hash_parent ||= $diffinfo{'from_id'};
3651                $hash        ||= $diffinfo{'to_id'};
3652
3653                # non-textual hash id's can be cached
3654                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3655                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3656                        $expires = '+1d';
3657                }
3658
3659                # open patch output
3660                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3661                        '-p', $hash_parent_base, $hash_base,
3662                        "--", $file_name
3663                        or die_error(undef, "Open git-diff-tree failed");
3664        }
3665
3666        # old/legacy style URI
3667        if (!%diffinfo && # if new style URI failed
3668            defined $hash && defined $hash_parent) {
3669                # fake git-diff-tree raw output
3670                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3671                $diffinfo{'from_id'} = $hash_parent;
3672                $diffinfo{'to_id'}   = $hash;
3673                if (defined $file_name) {
3674                        if (defined $file_parent) {
3675                                $diffinfo{'status'} = '2';
3676                                $diffinfo{'from_file'} = $file_parent;
3677                                $diffinfo{'to_file'}   = $file_name;
3678                        } else { # assume not renamed
3679                                $diffinfo{'status'} = '1';
3680                                $diffinfo{'from_file'} = $file_name;
3681                                $diffinfo{'to_file'}   = $file_name;
3682                        }
3683                } else { # no filename given
3684                        $diffinfo{'status'} = '2';
3685                        $diffinfo{'from_file'} = $hash_parent;
3686                        $diffinfo{'to_file'}   = $hash;
3687                }
3688
3689                # non-textual hash id's can be cached
3690                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3691                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3692                        $expires = '+1d';
3693                }
3694
3695                # open patch output
3696                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts,
3697                        $hash_parent, $hash, "--"
3698                        or die_error(undef, "Open git-diff failed");
3699        } else  {
3700                die_error('404 Not Found', "Missing one of the blob diff parameters")
3701                        unless %diffinfo;
3702        }
3703
3704        # header
3705        if ($format eq 'html') {
3706                my $formats_nav =
3707                        $cgi->a({-href => href(action=>"blobdiff_plain",
3708                                               hash=>$hash, hash_parent=>$hash_parent,
3709                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3710                                               file_name=>$file_name, file_parent=>$file_parent)},
3711                                "raw");
3712                git_header_html(undef, $expires);
3713                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3714                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3715                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3716                } else {
3717                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3718                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3719                }
3720                if (defined $file_name) {
3721                        git_print_page_path($file_name, "blob", $hash_base);
3722                } else {
3723                        print "<div class=\"page_path\"></div>\n";
3724                }
3725
3726        } elsif ($format eq 'plain') {
3727                print $cgi->header(
3728                        -type => 'text/plain',
3729                        -charset => 'utf-8',
3730                        -expires => $expires,
3731                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3732
3733                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3734
3735        } else {
3736                die_error(undef, "Unknown blobdiff format");
3737        }
3738
3739        # patch
3740        if ($format eq 'html') {
3741                print "<div class=\"page_body\">\n";
3742
3743                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3744                close $fd;
3745
3746                print "</div>\n"; # class="page_body"
3747                git_footer_html();
3748
3749        } else {
3750                while (my $line = <$fd>) {
3751                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
3752                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
3753
3754                        print $line;
3755
3756                        last if $line =~ m!^\+\+\+!;
3757                }
3758                local $/ = undef;
3759                print <$fd>;
3760                close $fd;
3761        }
3762}
3763
3764sub git_blobdiff_plain {
3765        git_blobdiff('plain');
3766}
3767
3768sub git_commitdiff {
3769        my $format = shift || 'html';
3770        $hash ||= $hash_base || "HEAD";
3771        my %co = parse_commit($hash);
3772        if (!%co) {
3773                die_error(undef, "Unknown commit object");
3774        }
3775
3776        # we need to prepare $formats_nav before any parameter munging
3777        my $formats_nav;
3778        if ($format eq 'html') {
3779                $formats_nav =
3780                        $cgi->a({-href => href(action=>"commitdiff_plain",
3781                                               hash=>$hash, hash_parent=>$hash_parent)},
3782                                "raw");
3783
3784                if (defined $hash_parent) {
3785                        # commitdiff with two commits given
3786                        my $hash_parent_short = $hash_parent;
3787                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3788                                $hash_parent_short = substr($hash_parent, 0, 7);
3789                        }
3790                        $formats_nav .=
3791                                ' (from: ' .
3792                                $cgi->a({-href => href(action=>"commitdiff",
3793                                                       hash=>$hash_parent)},
3794                                        esc_html($hash_parent_short)) .
3795                                ')';
3796                } elsif (!$co{'parent'}) {
3797                        # --root commitdiff
3798                        $formats_nav .= ' (initial)';
3799                } elsif (scalar @{$co{'parents'}} == 1) {
3800                        # single parent commit
3801                        $formats_nav .=
3802                                ' (parent: ' .
3803                                $cgi->a({-href => href(action=>"commitdiff",
3804                                                       hash=>$co{'parent'})},
3805                                        esc_html(substr($co{'parent'}, 0, 7))) .
3806                                ')';
3807                } else {
3808                        # merge commit
3809                        $formats_nav .=
3810                                ' (merge: ' .
3811                                join(' ', map {
3812                                        $cgi->a({-href => href(action=>"commitdiff",
3813                                                               hash=>$_)},
3814                                                esc_html(substr($_, 0, 7)));
3815                                } @{$co{'parents'}} ) .
3816                                ')';
3817                }
3818        }
3819
3820        if (!defined $hash_parent) {
3821                $hash_parent = $co{'parent'} || '--root';
3822        }
3823
3824        # read commitdiff
3825        my $fd;
3826        my @difftree;
3827        if ($format eq 'html') {
3828                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3829                        "--no-commit-id", "--patch-with-raw", "--full-index",
3830                        $hash_parent, $hash, "--"
3831                        or die_error(undef, "Open git-diff-tree failed");
3832
3833                while (my $line = <$fd>) {
3834                        chomp $line;
3835                        # empty line ends raw part of diff-tree output
3836                        last unless $line;
3837                        push @difftree, $line;
3838                }
3839
3840        } elsif ($format eq 'plain') {
3841                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3842                        '-p', $hash_parent, $hash, "--"
3843                        or die_error(undef, "Open git-diff-tree failed");
3844
3845        } else {
3846                die_error(undef, "Unknown commitdiff format");
3847        }
3848
3849        # non-textual hash id's can be cached
3850        my $expires;
3851        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3852                $expires = "+1d";
3853        }
3854
3855        # write commit message
3856        if ($format eq 'html') {
3857                my $refs = git_get_references();
3858                my $ref = format_ref_marker($refs, $co{'id'});
3859
3860                git_header_html(undef, $expires);
3861                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3862                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3863                git_print_authorship(\%co);
3864                print "<div class=\"page_body\">\n";
3865                if (@{$co{'comment'}} > 1) {
3866                        print "<div class=\"log\">\n";
3867                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
3868                        print "</div>\n"; # class="log"
3869                }
3870
3871        } elsif ($format eq 'plain') {
3872                my $refs = git_get_references("tags");
3873                my $tagname = git_get_rev_name_tags($hash);
3874                my $filename = basename($project) . "-$hash.patch";
3875
3876                print $cgi->header(
3877                        -type => 'text/plain',
3878                        -charset => 'utf-8',
3879                        -expires => $expires,
3880                        -content_disposition => 'inline; filename="' . "$filename" . '"');
3881                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3882                print <<TEXT;
3883From: $co{'author'}
3884Date: $ad{'rfc2822'} ($ad{'tz_local'})
3885Subject: $co{'title'}
3886TEXT
3887                print "X-Git-Tag: $tagname\n" if $tagname;
3888                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3889
3890                foreach my $line (@{$co{'comment'}}) {
3891                        print "$line\n";
3892                }
3893                print "---\n\n";
3894        }
3895
3896        # write patch
3897        if ($format eq 'html') {
3898                git_difftree_body(\@difftree, $hash, $hash_parent);
3899                print "<br/>\n";
3900
3901                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3902                close $fd;
3903                print "</div>\n"; # class="page_body"
3904                git_footer_html();
3905
3906        } elsif ($format eq 'plain') {
3907                local $/ = undef;
3908                print <$fd>;
3909                close $fd
3910                        or print "Reading git-diff-tree failed\n";
3911        }
3912}
3913
3914sub git_commitdiff_plain {
3915        git_commitdiff('plain');
3916}
3917
3918sub git_history {
3919        if (!defined $hash_base) {
3920                $hash_base = git_get_head_hash($project);
3921        }
3922        if (!defined $page) {
3923                $page = 0;
3924        }
3925        my $ftype;
3926        my %co = parse_commit($hash_base);
3927        if (!%co) {
3928                die_error(undef, "Unknown commit object");
3929        }
3930
3931        my $refs = git_get_references();
3932        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3933
3934        if (!defined $hash && defined $file_name) {
3935                $hash = git_get_hash_by_path($hash_base, $file_name);
3936        }
3937        if (defined $hash) {
3938                $ftype = git_get_type($hash);
3939        }
3940
3941        open my $fd, "-|",
3942                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3943                        or die_error(undef, "Open git-rev-list-failed");
3944        my @revlist = map { chomp; $_ } <$fd>;
3945        close $fd
3946                or die_error(undef, "Reading git-rev-list failed");
3947
3948        my $paging_nav = '';
3949        if ($page > 0) {
3950                $paging_nav .=
3951                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3952                                               file_name=>$file_name)},
3953                                "first");
3954                $paging_nav .= " &sdot; " .
3955                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3956                                               file_name=>$file_name, page=>$page-1),
3957                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3958        } else {
3959                $paging_nav .= "first";
3960                $paging_nav .= " &sdot; prev";
3961        }
3962        if ($#revlist >= (100 * ($page+1)-1)) {
3963                $paging_nav .= " &sdot; " .
3964                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3965                                               file_name=>$file_name, page=>$page+1),
3966                                 -accesskey => "n", -title => "Alt-n"}, "next");
3967        } else {
3968                $paging_nav .= " &sdot; next";
3969        }
3970        my $next_link = '';
3971        if ($#revlist >= (100 * ($page+1)-1)) {
3972                $next_link =
3973                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3974                                               file_name=>$file_name, page=>$page+1),
3975                                 -title => "Alt-n"}, "next");
3976        }
3977
3978        git_header_html();
3979        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3980        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3981        git_print_page_path($file_name, $ftype, $hash_base);
3982
3983        git_history_body(\@revlist, ($page * 100), $#revlist,
3984                         $refs, $hash_base, $ftype, $next_link);
3985
3986        git_footer_html();
3987}
3988
3989sub git_search {
3990        if (!defined $searchtext) {
3991                die_error(undef, "Text field empty");
3992        }
3993        if (!defined $hash) {
3994                $hash = git_get_head_hash($project);
3995        }
3996        my %co = parse_commit($hash);
3997        if (!%co) {
3998                die_error(undef, "Unknown commit object");
3999        }
4000
4001        $searchtype ||= 'commit';
4002        if ($searchtype eq 'pickaxe') {
4003                # pickaxe may take all resources of your box and run for several minutes
4004                # with every query - so decide by yourself how public you make this feature
4005                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4006                if (!$have_pickaxe) {
4007                        die_error('403 Permission denied', "Permission denied");
4008                }
4009        }
4010
4011        git_header_html();
4012        git_print_page_nav('','', $hash,$co{'tree'},$hash);
4013        git_print_header_div('commit', esc_html($co{'title'}), $hash);
4014
4015        print "<table cellspacing=\"0\">\n";
4016        my $alternate = 1;
4017        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
4018                $/ = "\0";
4019                open my $fd, "-|", git_cmd(), "rev-list",
4020                        "--header", "--parents", $hash, "--"
4021                        or next;
4022                while (my $commit_text = <$fd>) {
4023                        if (!grep m/$searchtext/i, $commit_text) {
4024                                next;
4025                        }
4026                        if ($searchtype eq 'author' && !grep m/\nauthor .*$searchtext/i, $commit_text) {
4027                                next;
4028                        }
4029                        if ($searchtype eq 'committer' && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
4030                                next;
4031                        }
4032                        my @commit_lines = split "\n", $commit_text;
4033                        my %co = parse_commit(undef, \@commit_lines);
4034                        if (!%co) {
4035                                next;
4036                        }
4037                        if ($alternate) {
4038                                print "<tr class=\"dark\">\n";
4039                        } else {
4040                                print "<tr class=\"light\">\n";
4041                        }
4042                        $alternate ^= 1;
4043                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4044                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4045                              "<td>" .
4046                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
4047                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4048                        my $comment = $co{'comment'};
4049                        foreach my $line (@$comment) {
4050                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
4051                                        my $lead = esc_html($1) || "";
4052                                        $lead = chop_str($lead, 30, 10);
4053                                        my $match = esc_html($2) || "";
4054                                        my $trail = esc_html($3) || "";
4055                                        $trail = chop_str($trail, 30, 10);
4056                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
4057                                        print chop_str($text, 80, 5) . "<br/>\n";
4058                                }
4059                        }
4060                        print "</td>\n" .
4061                              "<td class=\"link\">" .
4062                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4063                              " | " .
4064                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4065                        print "</td>\n" .
4066                              "</tr>\n";
4067                }
4068                close $fd;
4069        }
4070
4071        if ($searchtype eq 'pickaxe') {
4072                $/ = "\n";
4073                my $git_command = git_cmd_str();
4074                open my $fd, "-|", "$git_command rev-list $hash | " .
4075                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
4076                undef %co;
4077                my @files;
4078                while (my $line = <$fd>) {
4079                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
4080                                my %set;
4081                                $set{'file'} = $6;
4082                                $set{'from_id'} = $3;
4083                                $set{'to_id'} = $4;
4084                                $set{'id'} = $set{'to_id'};
4085                                if ($set{'id'} =~ m/0{40}/) {
4086                                        $set{'id'} = $set{'from_id'};
4087                                }
4088                                if ($set{'id'} =~ m/0{40}/) {
4089                                        next;
4090                                }
4091                                push @files, \%set;
4092                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
4093                                if (%co) {
4094                                        if ($alternate) {
4095                                                print "<tr class=\"dark\">\n";
4096                                        } else {
4097                                                print "<tr class=\"light\">\n";
4098                                        }
4099                                        $alternate ^= 1;
4100                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4101                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4102                                              "<td>" .
4103                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
4104                                                      -class => "list subject"},
4105                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4106                                        while (my $setref = shift @files) {
4107                                                my %set = %$setref;
4108                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
4109                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
4110                                                              -class => "list"},
4111                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
4112                                                      "<br/>\n";
4113                                        }
4114                                        print "</td>\n" .
4115                                              "<td class=\"link\">" .
4116                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4117                                              " | " .
4118                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4119                                        print "</td>\n" .
4120                                              "</tr>\n";
4121                                }
4122                                %co = parse_commit($1);
4123                        }
4124                }
4125                close $fd;
4126        }
4127        print "</table>\n";
4128        git_footer_html();
4129}
4130
4131sub git_search_help {
4132        git_header_html();
4133        git_print_page_nav('','', $hash,$hash,$hash);
4134        print <<EOT;
4135<dl>
4136<dt><b>commit</b></dt>
4137<dd>The commit messages and authorship information will be scanned for the given string.</dd>
4138<dt><b>author</b></dt>
4139<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
4140<dt><b>committer</b></dt>
4141<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
4142EOT
4143        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4144        if ($have_pickaxe) {
4145                print <<EOT;
4146<dt><b>pickaxe</b></dt>
4147<dd>All commits that caused the string to appear or disappear from any file (changes that
4148added, removed or "modified" the string) will be listed. This search can take a while and
4149takes a lot of strain on the server, so please use it wisely.</dd>
4150EOT
4151        }
4152        print "</dl>\n";
4153        git_footer_html();
4154}
4155
4156sub git_shortlog {
4157        my $head = git_get_head_hash($project);
4158        if (!defined $hash) {
4159                $hash = $head;
4160        }
4161        if (!defined $page) {
4162                $page = 0;
4163        }
4164        my $refs = git_get_references();
4165
4166        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4167        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
4168                or die_error(undef, "Open git-rev-list failed");
4169        my @revlist = map { chomp; $_ } <$fd>;
4170        close $fd;
4171
4172        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
4173        my $next_link = '';
4174        if ($#revlist >= (100 * ($page+1)-1)) {
4175                $next_link =
4176                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
4177                                 -title => "Alt-n"}, "next");
4178        }
4179
4180
4181        git_header_html();
4182        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
4183        git_print_header_div('summary', $project);
4184
4185        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
4186
4187        git_footer_html();
4188}
4189
4190## ......................................................................
4191## feeds (RSS, Atom; OPML)
4192
4193sub git_feed {
4194        my $format = shift || 'atom';
4195        my ($have_blame) = gitweb_check_feature('blame');
4196
4197        # Atom: http://www.atomenabled.org/developers/syndication/
4198        # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
4199        if ($format ne 'rss' && $format ne 'atom') {
4200                die_error(undef, "Unknown web feed format");
4201        }
4202
4203        # log/feed of current (HEAD) branch, log of given branch, history of file/directory
4204        my $head = $hash || 'HEAD';
4205        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150",
4206                $head, "--", (defined $file_name ? $file_name : ())
4207                or die_error(undef, "Open git-rev-list failed");
4208        my @revlist = map { chomp; $_ } <$fd>;
4209        close $fd or die_error(undef, "Reading git-rev-list failed");
4210
4211        my %latest_commit;
4212        my %latest_date;
4213        my $content_type = "application/$format+xml";
4214        if (defined $cgi->http('HTTP_ACCEPT') &&
4215                 $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
4216                # browser (feed reader) prefers text/xml
4217                $content_type = 'text/xml';
4218        }
4219        if (defined($revlist[0])) {
4220                %latest_commit = parse_commit($revlist[0]);
4221                %latest_date   = parse_date($latest_commit{'author_epoch'});
4222                print $cgi->header(
4223                        -type => $content_type,
4224                        -charset => 'utf-8',
4225                        -last_modified => $latest_date{'rfc2822'});
4226        } else {
4227                print $cgi->header(
4228                        -type => $content_type,
4229                        -charset => 'utf-8');
4230        }
4231
4232        # Optimization: skip generating the body if client asks only
4233        # for Last-Modified date.
4234        return if ($cgi->request_method() eq 'HEAD');
4235
4236        # header variables
4237        my $title = "$site_name - $project/$action";
4238        my $feed_type = 'log';
4239        if (defined $hash) {
4240                $title .= " - '$hash'";
4241                $feed_type = 'branch log';
4242                if (defined $file_name) {
4243                        $title .= " :: $file_name";
4244                        $feed_type = 'history';
4245                }
4246        } elsif (defined $file_name) {
4247                $title .= " - $file_name";
4248                $feed_type = 'history';
4249        }
4250        $title .= " $feed_type";
4251        my $descr = git_get_project_description($project);
4252        if (defined $descr) {
4253                $descr = esc_html($descr);
4254        } else {
4255                $descr = "$project " .
4256                         ($format eq 'rss' ? 'RSS' : 'Atom') .
4257                         " feed";
4258        }
4259        my $owner = git_get_project_owner($project);
4260        $owner = esc_html($owner);
4261
4262        #header
4263        my $alt_url;
4264        if (defined $file_name) {
4265                $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
4266        } elsif (defined $hash) {
4267                $alt_url = href(-full=>1, action=>"log", hash=>$hash);
4268        } else {
4269                $alt_url = href(-full=>1, action=>"summary");
4270        }
4271        print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
4272        if ($format eq 'rss') {
4273                print <<XML;
4274<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
4275<channel>
4276XML
4277                print "<title>$title</title>\n" .
4278                      "<link>$alt_url</link>\n" .
4279                      "<description>$descr</description>\n" .
4280                      "<language>en</language>\n";
4281        } elsif ($format eq 'atom') {
4282                print <<XML;
4283<feed xmlns="http://www.w3.org/2005/Atom">
4284XML
4285                print "<title>$title</title>\n" .
4286                      "<subtitle>$descr</subtitle>\n" .
4287                      '<link rel="alternate" type="text/html" href="' .
4288                      $alt_url . '" />' . "\n" .
4289                      '<link rel="self" type="' . $content_type . '" href="' .
4290                      $cgi->self_url() . '" />' . "\n" .
4291                      "<id>" . href(-full=>1) . "</id>\n" .
4292                      # use project owner for feed author
4293                      "<author><name>$owner</name></author>\n";
4294                if (defined $favicon) {
4295                        print "<icon>" . esc_url($favicon) . "</icon>\n";
4296                }
4297                if (defined $logo_url) {
4298                        # not twice as wide as tall: 72 x 27 pixels
4299                        print "<logo>" . esc_url($logo) . "</logo>\n";
4300                }
4301                if (! %latest_date) {
4302                        # dummy date to keep the feed valid until commits trickle in:
4303                        print "<updated>1970-01-01T00:00:00Z</updated>\n";
4304                } else {
4305                        print "<updated>$latest_date{'iso-8601'}</updated>\n";
4306                }
4307        }
4308
4309        # contents
4310        for (my $i = 0; $i <= $#revlist; $i++) {
4311                my $commit = $revlist[$i];
4312                my %co = parse_commit($commit);
4313                # we read 150, we always show 30 and the ones more recent than 48 hours
4314                if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
4315                        last;
4316                }
4317                my %cd = parse_date($co{'author_epoch'});
4318
4319                # get list of changed files
4320                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4321                        $co{'parent'}, $co{'id'}, "--", (defined $file_name ? $file_name : ())
4322                        or next;
4323                my @difftree = map { chomp; $_ } <$fd>;
4324                close $fd
4325                        or next;
4326
4327                # print element (entry, item)
4328                my $co_url = href(-full=>1, action=>"commit", hash=>$commit);
4329                if ($format eq 'rss') {
4330                        print "<item>\n" .
4331                              "<title>" . esc_html($co{'title'}) . "</title>\n" .
4332                              "<author>" . esc_html($co{'author'}) . "</author>\n" .
4333                              "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
4334                              "<guid isPermaLink=\"true\">$co_url</guid>\n" .
4335                              "<link>$co_url</link>\n" .
4336                              "<description>" . esc_html($co{'title'}) . "</description>\n" .
4337                              "<content:encoded>" .
4338                              "<![CDATA[\n";
4339                } elsif ($format eq 'atom') {
4340                        print "<entry>\n" .
4341                              "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
4342                              "<updated>$cd{'iso-8601'}</updated>\n" .
4343                              "<author>\n" .
4344                              "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
4345                        if ($co{'author_email'}) {
4346                                print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
4347                        }
4348                        print "</author>\n" .
4349                              # use committer for contributor
4350                              "<contributor>\n" .
4351                              "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
4352                        if ($co{'committer_email'}) {
4353                                print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
4354                        }
4355                        print "</contributor>\n" .
4356                              "<published>$cd{'iso-8601'}</published>\n" .
4357                              "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
4358                              "<id>$co_url</id>\n" .
4359                              "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
4360                              "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
4361                }
4362                my $comment = $co{'comment'};
4363                print "<pre>\n";
4364                foreach my $line (@$comment) {
4365                        $line = esc_html($line);
4366                        print "$line\n";
4367                }
4368                print "</pre><ul>\n";
4369                foreach my $difftree_line (@difftree) {
4370                        my %difftree = parse_difftree_raw_line($difftree_line);
4371                        next if !$difftree{'from_id'};
4372
4373                        my $file = $difftree{'file'} || $difftree{'to_file'};
4374
4375                        print "<li>" .
4376                              "[" .
4377                              $cgi->a({-href => href(-full=>1, action=>"blobdiff",
4378                                                     hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
4379                                                     hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
4380                                                     file_name=>$file, file_parent=>$difftree{'from_file'}),
4381                                      -title => "diff"}, 'D');
4382                        if ($have_blame) {
4383                                print $cgi->a({-href => href(-full=>1, action=>"blame",
4384                                                             file_name=>$file, hash_base=>$commit),
4385                                              -title => "blame"}, 'B');
4386                        }
4387                        # if this is not a feed of a file history
4388                        if (!defined $file_name || $file_name ne $file) {
4389                                print $cgi->a({-href => href(-full=>1, action=>"history",
4390                                                             file_name=>$file, hash=>$commit),
4391                                              -title => "history"}, 'H');
4392                        }
4393                        $file = esc_path($file);
4394                        print "] ".
4395                              "$file</li>\n";
4396                }
4397                if ($format eq 'rss') {
4398                        print "</ul>]]>\n" .
4399                              "</content:encoded>\n" .
4400                              "</item>\n";
4401                } elsif ($format eq 'atom') {
4402                        print "</ul>\n</div>\n" .
4403                              "</content>\n" .
4404                              "</entry>\n";
4405                }
4406        }
4407
4408        # end of feed
4409        if ($format eq 'rss') {
4410                print "</channel>\n</rss>\n";
4411        }       elsif ($format eq 'atom') {
4412                print "</feed>\n";
4413        }
4414}
4415
4416sub git_rss {
4417        git_feed('rss');
4418}
4419
4420sub git_atom {
4421        git_feed('atom');
4422}
4423
4424sub git_opml {
4425        my @list = git_get_projects_list();
4426
4427        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4428        print <<XML;
4429<?xml version="1.0" encoding="utf-8"?>
4430<opml version="1.0">
4431<head>
4432  <title>$site_name OPML Export</title>
4433</head>
4434<body>
4435<outline text="git RSS feeds">
4436XML
4437
4438        foreach my $pr (@list) {
4439                my %proj = %$pr;
4440                my $head = git_get_head_hash($proj{'path'});
4441                if (!defined $head) {
4442                        next;
4443                }
4444                $git_dir = "$projectroot/$proj{'path'}";
4445                my %co = parse_commit($head);
4446                if (!%co) {
4447                        next;
4448                }
4449
4450                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
4451                my $rss  = "$my_url?p=$proj{'path'};a=rss";
4452                my $html = "$my_url?p=$proj{'path'};a=summary";
4453                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
4454        }
4455        print <<XML;
4456</outline>
4457</body>
4458</opml>
4459XML
4460}