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

   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21BEGIN {
  22        CGI->compile() if $ENV{'MOD_PERL'};
  23}
  24
  25our $cgi = new CGI;
  26our $version = "++GIT_VERSION++";
  27our $my_url = $cgi->url();
  28our $my_uri = $cgi->url(-absolute => 1);
  29
  30# core git executable to use
  31# this can just be "git" if your webserver has a sensible PATH
  32our $GIT = "++GIT_BINDIR++/git";
  33
  34# absolute fs-path which will be prepended to the project path
  35#our $projectroot = "/pub/scm";
  36our $projectroot = "++GITWEB_PROJECTROOT++";
  37
  38# target of the home link on top of all pages
  39our $home_link = $my_uri || "/";
  40
  41# string of the home link on top of all pages
  42our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  43
  44# name of your site or organization to appear in page titles
  45# replace this with something more descriptive for clearer bookmarks
  46our $site_name = "++GITWEB_SITENAME++"
  47                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  48
  49# filename of html text to include at top of each page
  50our $site_header = "++GITWEB_SITE_HEADER++";
  51# html text to include at home page
  52our $home_text = "++GITWEB_HOMETEXT++";
  53# filename of html text to include at bottom of each page
  54our $site_footer = "++GITWEB_SITE_FOOTER++";
  55
  56# URI of stylesheets
  57our @stylesheets = ("++GITWEB_CSS++");
  58# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  59our $stylesheet = undef;
  60# URI of GIT logo (72x27 size)
  61our $logo = "++GITWEB_LOGO++";
  62# URI of GIT favicon, assumed to be image/png type
  63our $favicon = "++GITWEB_FAVICON++";
  64
  65# URI and label (title) of GIT logo link
  66#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  67#our $logo_label = "git documentation";
  68our $logo_url = "http://git.or.cz/";
  69our $logo_label = "git homepage";
  70
  71# source of projects list
  72our $projects_list = "++GITWEB_LIST++";
  73
  74# default order of projects list
  75# valid values are none, project, descr, owner, and age
  76our $default_projects_order = "project";
  77
  78# show repository only if this file exists
  79# (only effective if this variable evaluates to true)
  80our $export_ok = "++GITWEB_EXPORT_OK++";
  81
  82# only allow viewing of repositories also shown on the overview page
  83our $strict_export = "++GITWEB_STRICT_EXPORT++";
  84
  85# list of git base URLs used for URL to where fetch project from,
  86# i.e. full URL is "$git_base_url/$project"
  87our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  88
  89# default blob_plain mimetype and default charset for text/plain blob
  90our $default_blob_plain_mimetype = 'text/plain';
  91our $default_text_plain_charset  = undef;
  92
  93# file to use for guessing MIME types before trying /etc/mime.types
  94# (relative to the current git repository)
  95our $mimetypes_file = undef;
  96
  97# You define site-wide feature defaults here; override them with
  98# $GITWEB_CONFIG as necessary.
  99our %feature = (
 100        # feature => {
 101        #       'sub' => feature-sub (subroutine),
 102        #       'override' => allow-override (boolean),
 103        #       'default' => [ default options...] (array reference)}
 104        #
 105        # if feature is overridable (it means that allow-override has true value,
 106        # then feature-sub will be called with default options as parameters;
 107        # return value of feature-sub indicates if to enable specified feature
 108        #
 109        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 110
 111        # Enable the 'blame' blob view, showing the last commit that modified
 112        # each line in the file. This can be very CPU-intensive.
 113
 114        # To enable system wide have in $GITWEB_CONFIG
 115        # $feature{'blame'}{'default'} = [1];
 116        # To have project specific config enable override in $GITWEB_CONFIG
 117        # $feature{'blame'}{'override'} = 1;
 118        # and in project config gitweb.blame = 0|1;
 119        'blame' => {
 120                'sub' => \&feature_blame,
 121                'override' => 0,
 122                'default' => [0]},
 123
 124        # Enable the 'snapshot' link, providing a compressed tarball of any
 125        # tree. This can potentially generate high traffic if you have large
 126        # project.
 127
 128        # To disable system wide have in $GITWEB_CONFIG
 129        # $feature{'snapshot'}{'default'} = [undef];
 130        # To have project specific config enable override in $GITWEB_CONFIG
 131        # $feature{'snapshot'}{'override'} = 1;
 132        # and in project config gitweb.snapshot = none|gzip|bzip2;
 133        'snapshot' => {
 134                'sub' => \&feature_snapshot,
 135                'override' => 0,
 136                #         => [content-encoding, suffix, program]
 137                'default' => ['x-gzip', 'gz', 'gzip']},
 138
 139        # Enable text search, which will list the commits which match author,
 140        # committer or commit text to a given string.  Enabled by default.
 141        'search' => {
 142                'override' => 0,
 143                'default' => [1]},
 144
 145        # Enable the pickaxe search, which will list the commits that modified
 146        # a given string in a file. This can be practical and quite faster
 147        # alternative to 'blame', but still potentially CPU-intensive.
 148
 149        # To enable system wide have in $GITWEB_CONFIG
 150        # $feature{'pickaxe'}{'default'} = [1];
 151        # To have project specific config enable override in $GITWEB_CONFIG
 152        # $feature{'pickaxe'}{'override'} = 1;
 153        # and in project config gitweb.pickaxe = 0|1;
 154        'pickaxe' => {
 155                'sub' => \&feature_pickaxe,
 156                'override' => 0,
 157                'default' => [1]},
 158
 159        # Make gitweb use an alternative format of the URLs which can be
 160        # more readable and natural-looking: project name is embedded
 161        # directly in the path and the query string contains other
 162        # auxiliary information. All gitweb installations recognize
 163        # URL in either format; this configures in which formats gitweb
 164        # generates links.
 165
 166        # To enable system wide have in $GITWEB_CONFIG
 167        # $feature{'pathinfo'}{'default'} = [1];
 168        # Project specific override is not supported.
 169
 170        # Note that you will need to change the default location of CSS,
 171        # favicon, logo and possibly other files to an absolute URL. Also,
 172        # if gitweb.cgi serves as your indexfile, you will need to force
 173        # $my_uri to contain the script name in your $GITWEB_CONFIG.
 174        'pathinfo' => {
 175                'override' => 0,
 176                'default' => [0]},
 177
 178        # Make gitweb consider projects in project root subdirectories
 179        # to be forks of existing projects. Given project $projname.git,
 180        # projects matching $projname/*.git will not be shown in the main
 181        # projects list, instead a '+' mark will be added to $projname
 182        # there and a 'forks' view will be enabled for the project, listing
 183        # all the forks. If project list is taken from a file, forks have
 184        # to be listed after the main project.
 185
 186        # To enable system wide have in $GITWEB_CONFIG
 187        # $feature{'forks'}{'default'} = [1];
 188        # Project specific override is not supported.
 189        'forks' => {
 190                'override' => 0,
 191                'default' => [0]},
 192);
 193
 194sub gitweb_check_feature {
 195        my ($name) = @_;
 196        return unless exists $feature{$name};
 197        my ($sub, $override, @defaults) = (
 198                $feature{$name}{'sub'},
 199                $feature{$name}{'override'},
 200                @{$feature{$name}{'default'}});
 201        if (!$override) { return @defaults; }
 202        if (!defined $sub) {
 203                warn "feature $name is not overrideable";
 204                return @defaults;
 205        }
 206        return $sub->(@defaults);
 207}
 208
 209sub feature_blame {
 210        my ($val) = git_get_project_config('blame', '--bool');
 211
 212        if ($val eq 'true') {
 213                return 1;
 214        } elsif ($val eq 'false') {
 215                return 0;
 216        }
 217
 218        return $_[0];
 219}
 220
 221sub feature_snapshot {
 222        my ($ctype, $suffix, $command) = @_;
 223
 224        my ($val) = git_get_project_config('snapshot');
 225
 226        if ($val eq 'gzip') {
 227                return ('x-gzip', 'gz', 'gzip');
 228        } elsif ($val eq 'bzip2') {
 229                return ('x-bzip2', 'bz2', 'bzip2');
 230        } elsif ($val eq 'none') {
 231                return ();
 232        }
 233
 234        return ($ctype, $suffix, $command);
 235}
 236
 237sub gitweb_have_snapshot {
 238        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 239        my $have_snapshot = (defined $ctype && defined $suffix);
 240
 241        return $have_snapshot;
 242}
 243
 244sub feature_pickaxe {
 245        my ($val) = git_get_project_config('pickaxe', '--bool');
 246
 247        if ($val eq 'true') {
 248                return (1);
 249        } elsif ($val eq 'false') {
 250                return (0);
 251        }
 252
 253        return ($_[0]);
 254}
 255
 256# checking HEAD file with -e is fragile if the repository was
 257# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 258# and then pruned.
 259sub check_head_link {
 260        my ($dir) = @_;
 261        my $headfile = "$dir/HEAD";
 262        return ((-e $headfile) ||
 263                (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 264}
 265
 266sub check_export_ok {
 267        my ($dir) = @_;
 268        return (check_head_link($dir) &&
 269                (!$export_ok || -e "$dir/$export_ok"));
 270}
 271
 272# rename detection options for git-diff and git-diff-tree
 273# - default is '-M', with the cost proportional to
 274#   (number of removed files) * (number of new files).
 275# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 276#   (number of changed files + number of removed files) * (number of new files)
 277# - even more costly is '-C', '--find-copies-harder' with cost
 278#   (number of files in the original tree) * (number of new files)
 279# - one might want to include '-B' option, e.g. '-B', '-M'
 280our @diff_opts = ('-M'); # taken from git_commit
 281
 282our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 283do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 284
 285# version of the core git binary
 286our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 287
 288$projects_list ||= $projectroot;
 289
 290# ======================================================================
 291# input validation and dispatch
 292our $action = $cgi->param('a');
 293if (defined $action) {
 294        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 295                die_error(undef, "Invalid action parameter");
 296        }
 297}
 298
 299# parameters which are pathnames
 300our $project = $cgi->param('p');
 301if (defined $project) {
 302        if (!validate_pathname($project) ||
 303            !(-d "$projectroot/$project") ||
 304            !check_head_link("$projectroot/$project") ||
 305            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 306            ($strict_export && !project_in_list($project))) {
 307                undef $project;
 308                die_error(undef, "No such project");
 309        }
 310}
 311
 312our $file_name = $cgi->param('f');
 313if (defined $file_name) {
 314        if (!validate_pathname($file_name)) {
 315                die_error(undef, "Invalid file parameter");
 316        }
 317}
 318
 319our $file_parent = $cgi->param('fp');
 320if (defined $file_parent) {
 321        if (!validate_pathname($file_parent)) {
 322                die_error(undef, "Invalid file parent parameter");
 323        }
 324}
 325
 326# parameters which are refnames
 327our $hash = $cgi->param('h');
 328if (defined $hash) {
 329        if (!validate_refname($hash)) {
 330                die_error(undef, "Invalid hash parameter");
 331        }
 332}
 333
 334our $hash_parent = $cgi->param('hp');
 335if (defined $hash_parent) {
 336        if (!validate_refname($hash_parent)) {
 337                die_error(undef, "Invalid hash parent parameter");
 338        }
 339}
 340
 341our $hash_base = $cgi->param('hb');
 342if (defined $hash_base) {
 343        if (!validate_refname($hash_base)) {
 344                die_error(undef, "Invalid hash base parameter");
 345        }
 346}
 347
 348our $hash_parent_base = $cgi->param('hpb');
 349if (defined $hash_parent_base) {
 350        if (!validate_refname($hash_parent_base)) {
 351                die_error(undef, "Invalid hash parent base parameter");
 352        }
 353}
 354
 355# other parameters
 356our $page = $cgi->param('pg');
 357if (defined $page) {
 358        if ($page =~ m/[^0-9]/) {
 359                die_error(undef, "Invalid page parameter");
 360        }
 361}
 362
 363our $searchtext = $cgi->param('s');
 364if (defined $searchtext) {
 365        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 366                die_error(undef, "Invalid search parameter");
 367        }
 368        if (length($searchtext) < 2) {
 369                die_error(undef, "At least two characters are required for search parameter");
 370        }
 371        $searchtext = quotemeta $searchtext;
 372}
 373
 374our $searchtype = $cgi->param('st');
 375if (defined $searchtype) {
 376        if ($searchtype =~ m/[^a-z]/) {
 377                die_error(undef, "Invalid searchtype parameter");
 378        }
 379}
 380
 381# now read PATH_INFO and use it as alternative to parameters
 382sub evaluate_path_info {
 383        return if defined $project;
 384        my $path_info = $ENV{"PATH_INFO"};
 385        return if !$path_info;
 386        $path_info =~ s,^/+,,;
 387        return if !$path_info;
 388        # find which part of PATH_INFO is project
 389        $project = $path_info;
 390        $project =~ s,/+$,,;
 391        while ($project && !check_head_link("$projectroot/$project")) {
 392                $project =~ s,/*[^/]*$,,;
 393        }
 394        # validate project
 395        $project = validate_pathname($project);
 396        if (!$project ||
 397            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 398            ($strict_export && !project_in_list($project))) {
 399                undef $project;
 400                return;
 401        }
 402        # do not change any parameters if an action is given using the query string
 403        return if $action;
 404        $path_info =~ s,^$project/*,,;
 405        my ($refname, $pathname) = split(/:/, $path_info, 2);
 406        if (defined $pathname) {
 407                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 408                # we could use git_get_type(branch:pathname), but it needs $git_dir
 409                $pathname =~ s,^/+,,;
 410                if (!$pathname || substr($pathname, -1) eq "/") {
 411                        $action  ||= "tree";
 412                        $pathname =~ s,/$,,;
 413                } else {
 414                        $action  ||= "blob_plain";
 415                }
 416                $hash_base ||= validate_refname($refname);
 417                $file_name ||= validate_pathname($pathname);
 418        } elsif (defined $refname) {
 419                # we got "project.git/branch"
 420                $action ||= "shortlog";
 421                $hash   ||= validate_refname($refname);
 422        }
 423}
 424evaluate_path_info();
 425
 426# path to the current git repository
 427our $git_dir;
 428$git_dir = "$projectroot/$project" if $project;
 429
 430# dispatch
 431my %actions = (
 432        "blame" => \&git_blame2,
 433        "blobdiff" => \&git_blobdiff,
 434        "blobdiff_plain" => \&git_blobdiff_plain,
 435        "blob" => \&git_blob,
 436        "blob_plain" => \&git_blob_plain,
 437        "commitdiff" => \&git_commitdiff,
 438        "commitdiff_plain" => \&git_commitdiff_plain,
 439        "commit" => \&git_commit,
 440        "forks" => \&git_forks,
 441        "heads" => \&git_heads,
 442        "history" => \&git_history,
 443        "log" => \&git_log,
 444        "rss" => \&git_rss,
 445        "atom" => \&git_atom,
 446        "search" => \&git_search,
 447        "search_help" => \&git_search_help,
 448        "shortlog" => \&git_shortlog,
 449        "summary" => \&git_summary,
 450        "tag" => \&git_tag,
 451        "tags" => \&git_tags,
 452        "tree" => \&git_tree,
 453        "snapshot" => \&git_snapshot,
 454        "object" => \&git_object,
 455        # those below don't need $project
 456        "opml" => \&git_opml,
 457        "project_list" => \&git_project_list,
 458        "project_index" => \&git_project_index,
 459);
 460
 461if (defined $project) {
 462        $action ||= 'summary';
 463} else {
 464        $action ||= 'project_list';
 465}
 466if (!defined($actions{$action})) {
 467        die_error(undef, "Unknown action");
 468}
 469if ($action !~ m/^(opml|project_list|project_index)$/ &&
 470    !$project) {
 471        die_error(undef, "Project needed");
 472}
 473$actions{$action}->();
 474exit;
 475
 476## ======================================================================
 477## action links
 478
 479sub href(%) {
 480        my %params = @_;
 481        # default is to use -absolute url() i.e. $my_uri
 482        my $href = $params{-full} ? $my_url : $my_uri;
 483
 484        # XXX: Warning: If you touch this, check the search form for updating,
 485        # too.
 486
 487        my @mapping = (
 488                project => "p",
 489                action => "a",
 490                file_name => "f",
 491                file_parent => "fp",
 492                hash => "h",
 493                hash_parent => "hp",
 494                hash_base => "hb",
 495                hash_parent_base => "hpb",
 496                page => "pg",
 497                order => "o",
 498                searchtext => "s",
 499                searchtype => "st",
 500        );
 501        my %mapping = @mapping;
 502
 503        $params{'project'} = $project unless exists $params{'project'};
 504
 505        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 506        if ($use_pathinfo) {
 507                # use PATH_INFO for project name
 508                $href .= "/$params{'project'}" if defined $params{'project'};
 509                delete $params{'project'};
 510
 511                # Summary just uses the project path URL
 512                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 513                        delete $params{'action'};
 514                }
 515        }
 516
 517        # now encode the parameters explicitly
 518        my @result = ();
 519        for (my $i = 0; $i < @mapping; $i += 2) {
 520                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 521                if (defined $params{$name}) {
 522                        push @result, $symbol . "=" . esc_param($params{$name});
 523                }
 524        }
 525        $href .= "?" . join(';', @result) if scalar @result;
 526
 527        return $href;
 528}
 529
 530
 531## ======================================================================
 532## validation, quoting/unquoting and escaping
 533
 534sub validate_pathname {
 535        my $input = shift || return undef;
 536
 537        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 538        # at the beginning, at the end, and between slashes.
 539        # also this catches doubled slashes
 540        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 541                return undef;
 542        }
 543        # no null characters
 544        if ($input =~ m!\0!) {
 545                return undef;
 546        }
 547        return $input;
 548}
 549
 550sub validate_refname {
 551        my $input = shift || return undef;
 552
 553        # textual hashes are O.K.
 554        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 555                return $input;
 556        }
 557        # it must be correct pathname
 558        $input = validate_pathname($input)
 559                or return undef;
 560        # restrictions on ref name according to git-check-ref-format
 561        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 562                return undef;
 563        }
 564        return $input;
 565}
 566
 567# quote unsafe chars, but keep the slash, even when it's not
 568# correct, but quoted slashes look too horrible in bookmarks
 569sub esc_param {
 570        my $str = shift;
 571        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 572        $str =~ s/\+/%2B/g;
 573        $str =~ s/ /\+/g;
 574        return $str;
 575}
 576
 577# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 578sub esc_url {
 579        my $str = shift;
 580        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 581        $str =~ s/\+/%2B/g;
 582        $str =~ s/ /\+/g;
 583        return $str;
 584}
 585
 586# replace invalid utf8 character with SUBSTITUTION sequence
 587sub esc_html ($;%) {
 588        my $str = shift;
 589        my %opts = @_;
 590
 591        $str = decode_utf8($str);
 592        $str = $cgi->escapeHTML($str);
 593        if ($opts{'-nbsp'}) {
 594                $str =~ s/ /&nbsp;/g;
 595        }
 596        $str =~ s|([[:cntrl:]])|(($1 ne "\t") ? quot_cec($1) : $1)|eg;
 597        return $str;
 598}
 599
 600# quote control characters and escape filename to HTML
 601sub esc_path {
 602        my $str = shift;
 603        my %opts = @_;
 604
 605        $str = decode_utf8($str);
 606        $str = $cgi->escapeHTML($str);
 607        if ($opts{'-nbsp'}) {
 608                $str =~ s/ /&nbsp;/g;
 609        }
 610        $str =~ s|([[:cntrl:]])|quot_cec($1)|eg;
 611        return $str;
 612}
 613
 614# Make control characters "printable", using character escape codes (CEC)
 615sub quot_cec {
 616        my $cntrl = shift;
 617        my %es = ( # character escape codes, aka escape sequences
 618                   "\t" => '\t',   # tab            (HT)
 619                   "\n" => '\n',   # line feed      (LF)
 620                   "\r" => '\r',   # carrige return (CR)
 621                   "\f" => '\f',   # form feed      (FF)
 622                   "\b" => '\b',   # backspace      (BS)
 623                   "\a" => '\a',   # alarm (bell)   (BEL)
 624                   "\e" => '\e',   # escape         (ESC)
 625                   "\013" => '\v', # vertical tab   (VT)
 626                   "\000" => '\0', # nul character  (NUL)
 627                   );
 628        my $chr = ( (exists $es{$cntrl})
 629                    ? $es{$cntrl}
 630                    : sprintf('\%03o', ord($cntrl)) );
 631        return "<span class=\"cntrl\">$chr</span>";
 632}
 633
 634# Alternatively use unicode control pictures codepoints,
 635# Unicode "printable representation" (PR)
 636sub quot_upr {
 637        my $cntrl = shift;
 638        my $chr = sprintf('&#%04d;', 0x2400+ord($cntrl));
 639        return "<span class=\"cntrl\">$chr</span>";
 640}
 641
 642# git may return quoted and escaped filenames
 643sub unquote {
 644        my $str = shift;
 645
 646        sub unq {
 647                my $seq = shift;
 648                my %es = ( # character escape codes, aka escape sequences
 649                        't' => "\t",   # tab            (HT, TAB)
 650                        'n' => "\n",   # newline        (NL)
 651                        'r' => "\r",   # return         (CR)
 652                        'f' => "\f",   # form feed      (FF)
 653                        'b' => "\b",   # backspace      (BS)
 654                        'a' => "\a",   # alarm (bell)   (BEL)
 655                        'e' => "\e",   # escape         (ESC)
 656                        'v' => "\013", # vertical tab   (VT)
 657                );
 658
 659                if ($seq =~ m/^[0-7]{1,3}$/) {
 660                        # octal char sequence
 661                        return chr(oct($seq));
 662                } elsif (exists $es{$seq}) {
 663                        # C escape sequence, aka character escape code
 664                        return $es{$seq}
 665                }
 666                # quoted ordinary character
 667                return $seq;
 668        }
 669
 670        if ($str =~ m/^"(.*)"$/) {
 671                # needs unquoting
 672                $str = $1;
 673                $str =~ s/\\([^0-7]|[0-7]{1,3})/unq($1)/eg;
 674        }
 675        return $str;
 676}
 677
 678# escape tabs (convert tabs to spaces)
 679sub untabify {
 680        my $line = shift;
 681
 682        while ((my $pos = index($line, "\t")) != -1) {
 683                if (my $count = (8 - ($pos % 8))) {
 684                        my $spaces = ' ' x $count;
 685                        $line =~ s/\t/$spaces/;
 686                }
 687        }
 688
 689        return $line;
 690}
 691
 692sub project_in_list {
 693        my $project = shift;
 694        my @list = git_get_projects_list();
 695        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 696}
 697
 698## ----------------------------------------------------------------------
 699## HTML aware string manipulation
 700
 701sub chop_str {
 702        my $str = shift;
 703        my $len = shift;
 704        my $add_len = shift || 10;
 705
 706        # allow only $len chars, but don't cut a word if it would fit in $add_len
 707        # if it doesn't fit, cut it if it's still longer than the dots we would add
 708        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 709        my $body = $1;
 710        my $tail = $2;
 711        if (length($tail) > 4) {
 712                $tail = " ...";
 713                $body =~ s/&[^;]*$//; # remove chopped character entities
 714        }
 715        return "$body$tail";
 716}
 717
 718## ----------------------------------------------------------------------
 719## functions returning short strings
 720
 721# CSS class for given age value (in seconds)
 722sub age_class {
 723        my $age = shift;
 724
 725        if ($age < 60*60*2) {
 726                return "age0";
 727        } elsif ($age < 60*60*24*2) {
 728                return "age1";
 729        } else {
 730                return "age2";
 731        }
 732}
 733
 734# convert age in seconds to "nn units ago" string
 735sub age_string {
 736        my $age = shift;
 737        my $age_str;
 738
 739        if ($age > 60*60*24*365*2) {
 740                $age_str = (int $age/60/60/24/365);
 741                $age_str .= " years ago";
 742        } elsif ($age > 60*60*24*(365/12)*2) {
 743                $age_str = int $age/60/60/24/(365/12);
 744                $age_str .= " months ago";
 745        } elsif ($age > 60*60*24*7*2) {
 746                $age_str = int $age/60/60/24/7;
 747                $age_str .= " weeks ago";
 748        } elsif ($age > 60*60*24*2) {
 749                $age_str = int $age/60/60/24;
 750                $age_str .= " days ago";
 751        } elsif ($age > 60*60*2) {
 752                $age_str = int $age/60/60;
 753                $age_str .= " hours ago";
 754        } elsif ($age > 60*2) {
 755                $age_str = int $age/60;
 756                $age_str .= " min ago";
 757        } elsif ($age > 2) {
 758                $age_str = int $age;
 759                $age_str .= " sec ago";
 760        } else {
 761                $age_str .= " right now";
 762        }
 763        return $age_str;
 764}
 765
 766# convert file mode in octal to symbolic file mode string
 767sub mode_str {
 768        my $mode = oct shift;
 769
 770        if (S_ISDIR($mode & S_IFMT)) {
 771                return 'drwxr-xr-x';
 772        } elsif (S_ISLNK($mode)) {
 773                return 'lrwxrwxrwx';
 774        } elsif (S_ISREG($mode)) {
 775                # git cares only about the executable bit
 776                if ($mode & S_IXUSR) {
 777                        return '-rwxr-xr-x';
 778                } else {
 779                        return '-rw-r--r--';
 780                };
 781        } else {
 782                return '----------';
 783        }
 784}
 785
 786# convert file mode in octal to file type string
 787sub file_type {
 788        my $mode = shift;
 789
 790        if ($mode !~ m/^[0-7]+$/) {
 791                return $mode;
 792        } else {
 793                $mode = oct $mode;
 794        }
 795
 796        if (S_ISDIR($mode & S_IFMT)) {
 797                return "directory";
 798        } elsif (S_ISLNK($mode)) {
 799                return "symlink";
 800        } elsif (S_ISREG($mode)) {
 801                return "file";
 802        } else {
 803                return "unknown";
 804        }
 805}
 806
 807# convert file mode in octal to file type description string
 808sub file_type_long {
 809        my $mode = shift;
 810
 811        if ($mode !~ m/^[0-7]+$/) {
 812                return $mode;
 813        } else {
 814                $mode = oct $mode;
 815        }
 816
 817        if (S_ISDIR($mode & S_IFMT)) {
 818                return "directory";
 819        } elsif (S_ISLNK($mode)) {
 820                return "symlink";
 821        } elsif (S_ISREG($mode)) {
 822                if ($mode & S_IXUSR) {
 823                        return "executable";
 824                } else {
 825                        return "file";
 826                };
 827        } else {
 828                return "unknown";
 829        }
 830}
 831
 832
 833## ----------------------------------------------------------------------
 834## functions returning short HTML fragments, or transforming HTML fragments
 835## which don't belong to other sections
 836
 837# format line of commit message.
 838sub format_log_line_html {
 839        my $line = shift;
 840
 841        $line = esc_html($line, -nbsp=>1);
 842        if ($line =~ m/([0-9a-fA-F]{8,40})/) {
 843                my $hash_text = $1;
 844                my $link =
 845                        $cgi->a({-href => href(action=>"object", hash=>$hash_text),
 846                                -class => "text"}, $hash_text);
 847                $line =~ s/$hash_text/$link/;
 848        }
 849        return $line;
 850}
 851
 852# format marker of refs pointing to given object
 853sub format_ref_marker {
 854        my ($refs, $id) = @_;
 855        my $markers = '';
 856
 857        if (defined $refs->{$id}) {
 858                foreach my $ref (@{$refs->{$id}}) {
 859                        my ($type, $name) = qw();
 860                        # e.g. tags/v2.6.11 or heads/next
 861                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 862                                $type = $1;
 863                                $name = $2;
 864                        } else {
 865                                $type = "ref";
 866                                $name = $ref;
 867                        }
 868
 869                        $markers .= " <span class=\"$type\" title=\"$ref\">" .
 870                                    esc_html($name) . "</span>";
 871                }
 872        }
 873
 874        if ($markers) {
 875                return ' <span class="refs">'. $markers . '</span>';
 876        } else {
 877                return "";
 878        }
 879}
 880
 881# format, perhaps shortened and with markers, title line
 882sub format_subject_html {
 883        my ($long, $short, $href, $extra) = @_;
 884        $extra = '' unless defined($extra);
 885
 886        if (length($short) < length($long)) {
 887                return $cgi->a({-href => $href, -class => "list subject",
 888                                -title => decode_utf8($long)},
 889                       esc_html($short) . $extra);
 890        } else {
 891                return $cgi->a({-href => $href, -class => "list subject"},
 892                       esc_html($long)  . $extra);
 893        }
 894}
 895
 896# format patch (diff) line (rather not to be used for diff headers)
 897sub format_diff_line {
 898        my $line = shift;
 899        my ($from, $to) = @_;
 900        my $diff_class = "";
 901
 902        chomp $line;
 903
 904        if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
 905                # combined diff
 906                my $prefix = substr($line, 0, scalar @{$from->{'href'}});
 907                if ($line =~ m/^\@{3}/) {
 908                        $diff_class = " chunk_header";
 909                } elsif ($line =~ m/^\\/) {
 910                        $diff_class = " incomplete";
 911                } elsif ($prefix =~ tr/+/+/) {
 912                        $diff_class = " add";
 913                } elsif ($prefix =~ tr/-/-/) {
 914                        $diff_class = " rem";
 915                }
 916        } else {
 917                # assume ordinary diff
 918                my $char = substr($line, 0, 1);
 919                if ($char eq '+') {
 920                        $diff_class = " add";
 921                } elsif ($char eq '-') {
 922                        $diff_class = " rem";
 923                } elsif ($char eq '@') {
 924                        $diff_class = " chunk_header";
 925                } elsif ($char eq "\\") {
 926                        $diff_class = " incomplete";
 927                }
 928        }
 929        $line = untabify($line);
 930        if ($from && $to && $line =~ m/^\@{2} /) {
 931                my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
 932                        $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
 933
 934                $from_lines = 0 unless defined $from_lines;
 935                $to_lines   = 0 unless defined $to_lines;
 936
 937                if ($from->{'href'}) {
 938                        $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
 939                                             -class=>"list"}, $from_text);
 940                }
 941                if ($to->{'href'}) {
 942                        $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
 943                                             -class=>"list"}, $to_text);
 944                }
 945                $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
 946                        "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
 947                return "<div class=\"diff$diff_class\">$line</div>\n";
 948        } elsif ($from && $to && $line =~ m/^\@{3}/) {
 949                my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
 950                my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
 951
 952                @from_text = split(' ', $ranges);
 953                for (my $i = 0; $i < @from_text; ++$i) {
 954                        ($from_start[$i], $from_nlines[$i]) =
 955                                (split(',', substr($from_text[$i], 1)), 0);
 956                }
 957
 958                $to_text   = pop @from_text;
 959                $to_start  = pop @from_start;
 960                $to_nlines = pop @from_nlines;
 961
 962                $line = "<span class=\"chunk_info\">$prefix ";
 963                for (my $i = 0; $i < @from_text; ++$i) {
 964                        if ($from->{'href'}[$i]) {
 965                                $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
 966                                                  -class=>"list"}, $from_text[$i]);
 967                        } else {
 968                                $line .= $from_text[$i];
 969                        }
 970                        $line .= " ";
 971                }
 972                if ($to->{'href'}) {
 973                        $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
 974                                          -class=>"list"}, $to_text);
 975                } else {
 976                        $line .= $to_text;
 977                }
 978                $line .= " $prefix</span>" .
 979                         "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
 980                return "<div class=\"diff$diff_class\">$line</div>\n";
 981        }
 982        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
 983}
 984
 985## ----------------------------------------------------------------------
 986## git utility subroutines, invoking git commands
 987
 988# returns path to the core git executable and the --git-dir parameter as list
 989sub git_cmd {
 990        return $GIT, '--git-dir='.$git_dir;
 991}
 992
 993# returns path to the core git executable and the --git-dir parameter as string
 994sub git_cmd_str {
 995        return join(' ', git_cmd());
 996}
 997
 998# get HEAD ref of given project as hash
 999sub git_get_head_hash {
1000        my $project = shift;
1001        my $o_git_dir = $git_dir;
1002        my $retval = undef;
1003        $git_dir = "$projectroot/$project";
1004        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
1005                my $head = <$fd>;
1006                close $fd;
1007                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
1008                        $retval = $1;
1009                }
1010        }
1011        if (defined $o_git_dir) {
1012                $git_dir = $o_git_dir;
1013        }
1014        return $retval;
1015}
1016
1017# get type of given object
1018sub git_get_type {
1019        my $hash = shift;
1020
1021        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
1022        my $type = <$fd>;
1023        close $fd or return;
1024        chomp $type;
1025        return $type;
1026}
1027
1028sub git_get_project_config {
1029        my ($key, $type) = @_;
1030
1031        return unless ($key);
1032        $key =~ s/^gitweb\.//;
1033        return if ($key =~ m/\W/);
1034
1035        my @x = (git_cmd(), 'config');
1036        if (defined $type) { push @x, $type; }
1037        push @x, "--get";
1038        push @x, "gitweb.$key";
1039        my $val = qx(@x);
1040        chomp $val;
1041        return ($val);
1042}
1043
1044# get hash of given path at given ref
1045sub git_get_hash_by_path {
1046        my $base = shift;
1047        my $path = shift || return undef;
1048        my $type = shift;
1049
1050        $path =~ s,/+$,,;
1051
1052        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
1053                or die_error(undef, "Open git-ls-tree failed");
1054        my $line = <$fd>;
1055        close $fd or return undef;
1056
1057        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1058        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
1059        if (defined $type && $type ne $2) {
1060                # type doesn't match
1061                return undef;
1062        }
1063        return $3;
1064}
1065
1066# get path of entry with given hash at given tree-ish (ref)
1067# used to get 'from' filename for combined diff (merge commit) for renames
1068sub git_get_path_by_hash {
1069        my $base = shift || return;
1070        my $hash = shift || return;
1071
1072        local $/ = "\0";
1073
1074        open my $fd, "-|", git_cmd(), "ls-tree", '-r', '-t', '-z', $base
1075                or return undef;
1076        while (my $line = <$fd>) {
1077                chomp $line;
1078
1079                #'040000 tree 595596a6a9117ddba9fe379b6b012b558bac8423  gitweb'
1080                #'100644 blob e02e90f0429be0d2a69b76571101f20b8f75530f  gitweb/README'
1081                if ($line =~ m/(?:[0-9]+) (?:.+) $hash\t(.+)$/) {
1082                        close $fd;
1083                        return $1;
1084                }
1085        }
1086        close $fd;
1087        return undef;
1088}
1089
1090## ......................................................................
1091## git utility functions, directly accessing git repository
1092
1093sub git_get_project_description {
1094        my $path = shift;
1095
1096        open my $fd, "$projectroot/$path/description" or return undef;
1097        my $descr = <$fd>;
1098        close $fd;
1099        chomp $descr;
1100        return $descr;
1101}
1102
1103sub git_get_project_url_list {
1104        my $path = shift;
1105
1106        open my $fd, "$projectroot/$path/cloneurl" or return;
1107        my @git_project_url_list = map { chomp; $_ } <$fd>;
1108        close $fd;
1109
1110        return wantarray ? @git_project_url_list : \@git_project_url_list;
1111}
1112
1113sub git_get_projects_list {
1114        my ($filter) = @_;
1115        my @list;
1116
1117        $filter ||= '';
1118        $filter =~ s/\.git$//;
1119
1120        my ($check_forks) = gitweb_check_feature('forks');
1121
1122        if (-d $projects_list) {
1123                # search in directory
1124                my $dir = $projects_list . ($filter ? "/$filter" : '');
1125                # remove the trailing "/"
1126                $dir =~ s!/+$!!;
1127                my $pfxlen = length("$dir");
1128
1129                File::Find::find({
1130                        follow_fast => 1, # follow symbolic links
1131                        dangling_symlinks => 0, # ignore dangling symlinks, silently
1132                        wanted => sub {
1133                                # skip project-list toplevel, if we get it.
1134                                return if (m!^[/.]$!);
1135                                # only directories can be git repositories
1136                                return unless (-d $_);
1137
1138                                my $subdir = substr($File::Find::name, $pfxlen + 1);
1139                                # we check related file in $projectroot
1140                                if ($check_forks and $subdir =~ m#/.#) {
1141                                        $File::Find::prune = 1;
1142                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1143                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1144                                        $File::Find::prune = 1;
1145                                }
1146                        },
1147                }, "$dir");
1148
1149        } elsif (-f $projects_list) {
1150                # read from file(url-encoded):
1151                # 'git%2Fgit.git Linus+Torvalds'
1152                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1153                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1154                my %paths;
1155                open my ($fd), $projects_list or return;
1156        PROJECT:
1157                while (my $line = <$fd>) {
1158                        chomp $line;
1159                        my ($path, $owner) = split ' ', $line;
1160                        $path = unescape($path);
1161                        $owner = unescape($owner);
1162                        if (!defined $path) {
1163                                next;
1164                        }
1165                        if ($filter ne '') {
1166                                # looking for forks;
1167                                my $pfx = substr($path, 0, length($filter));
1168                                if ($pfx ne $filter) {
1169                                        next PROJECT;
1170                                }
1171                                my $sfx = substr($path, length($filter));
1172                                if ($sfx !~ /^\/.*\.git$/) {
1173                                        next PROJECT;
1174                                }
1175                        } elsif ($check_forks) {
1176                        PATH:
1177                                foreach my $filter (keys %paths) {
1178                                        # looking for forks;
1179                                        my $pfx = substr($path, 0, length($filter));
1180                                        if ($pfx ne $filter) {
1181                                                next PATH;
1182                                        }
1183                                        my $sfx = substr($path, length($filter));
1184                                        if ($sfx !~ /^\/.*\.git$/) {
1185                                                next PATH;
1186                                        }
1187                                        # is a fork, don't include it in
1188                                        # the list
1189                                        next PROJECT;
1190                                }
1191                        }
1192                        if (check_export_ok("$projectroot/$path")) {
1193                                my $pr = {
1194                                        path => $path,
1195                                        owner => decode_utf8($owner),
1196                                };
1197                                push @list, $pr;
1198                                (my $forks_path = $path) =~ s/\.git$//;
1199                                $paths{$forks_path}++;
1200                        }
1201                }
1202                close $fd;
1203        }
1204        return @list;
1205}
1206
1207sub git_get_project_owner {
1208        my $project = shift;
1209        my $owner;
1210
1211        return undef unless $project;
1212
1213        # read from file (url-encoded):
1214        # 'git%2Fgit.git Linus+Torvalds'
1215        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1216        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1217        if (-f $projects_list) {
1218                open (my $fd , $projects_list);
1219                while (my $line = <$fd>) {
1220                        chomp $line;
1221                        my ($pr, $ow) = split ' ', $line;
1222                        $pr = unescape($pr);
1223                        $ow = unescape($ow);
1224                        if ($pr eq $project) {
1225                                $owner = decode_utf8($ow);
1226                                last;
1227                        }
1228                }
1229                close $fd;
1230        }
1231        if (!defined $owner) {
1232                $owner = get_file_owner("$projectroot/$project");
1233        }
1234
1235        return $owner;
1236}
1237
1238sub git_get_last_activity {
1239        my ($path) = @_;
1240        my $fd;
1241
1242        $git_dir = "$projectroot/$path";
1243        open($fd, "-|", git_cmd(), 'for-each-ref',
1244             '--format=%(committer)',
1245             '--sort=-committerdate',
1246             '--count=1',
1247             'refs/heads') or return;
1248        my $most_recent = <$fd>;
1249        close $fd or return;
1250        if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1251                my $timestamp = $1;
1252                my $age = time - $timestamp;
1253                return ($age, age_string($age));
1254        }
1255}
1256
1257sub git_get_references {
1258        my $type = shift || "";
1259        my %refs;
1260        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
1261        # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
1262        open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
1263                ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
1264                or return;
1265
1266        while (my $line = <$fd>) {
1267                chomp $line;
1268                if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
1269                        if (defined $refs{$1}) {
1270                                push @{$refs{$1}}, $2;
1271                        } else {
1272                                $refs{$1} = [ $2 ];
1273                        }
1274                }
1275        }
1276        close $fd or return;
1277        return \%refs;
1278}
1279
1280sub git_get_rev_name_tags {
1281        my $hash = shift || return undef;
1282
1283        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1284                or return;
1285        my $name_rev = <$fd>;
1286        close $fd;
1287
1288        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1289                return $1;
1290        } else {
1291                # catches also '$hash undefined' output
1292                return undef;
1293        }
1294}
1295
1296## ----------------------------------------------------------------------
1297## parse to hash functions
1298
1299sub parse_date {
1300        my $epoch = shift;
1301        my $tz = shift || "-0000";
1302
1303        my %date;
1304        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1305        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1306        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1307        $date{'hour'} = $hour;
1308        $date{'minute'} = $min;
1309        $date{'mday'} = $mday;
1310        $date{'day'} = $days[$wday];
1311        $date{'month'} = $months[$mon];
1312        $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1313                             $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1314        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1315                             $mday, $months[$mon], $hour ,$min;
1316        $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
1317                             1900+$year, $mon, $mday, $hour ,$min, $sec;
1318
1319        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1320        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1321        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1322        $date{'hour_local'} = $hour;
1323        $date{'minute_local'} = $min;
1324        $date{'tz_local'} = $tz;
1325        $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
1326                                  1900+$year, $mon+1, $mday,
1327                                  $hour, $min, $sec, $tz);
1328        return %date;
1329}
1330
1331sub parse_tag {
1332        my $tag_id = shift;
1333        my %tag;
1334        my @comment;
1335
1336        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1337        $tag{'id'} = $tag_id;
1338        while (my $line = <$fd>) {
1339                chomp $line;
1340                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1341                        $tag{'object'} = $1;
1342                } elsif ($line =~ m/^type (.+)$/) {
1343                        $tag{'type'} = $1;
1344                } elsif ($line =~ m/^tag (.+)$/) {
1345                        $tag{'name'} = $1;
1346                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1347                        $tag{'author'} = $1;
1348                        $tag{'epoch'} = $2;
1349                        $tag{'tz'} = $3;
1350                } elsif ($line =~ m/--BEGIN/) {
1351                        push @comment, $line;
1352                        last;
1353                } elsif ($line eq "") {
1354                        last;
1355                }
1356        }
1357        push @comment, <$fd>;
1358        $tag{'comment'} = \@comment;
1359        close $fd or return;
1360        if (!defined $tag{'name'}) {
1361                return
1362        };
1363        return %tag
1364}
1365
1366sub parse_commit_text {
1367        my ($commit_text, $withparents) = @_;
1368        my @commit_lines = split '\n', $commit_text;
1369        my %co;
1370
1371        pop @commit_lines; # Remove '\0'
1372
1373        my $header = shift @commit_lines;
1374        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1375                return;
1376        }
1377        ($co{'id'}, my @parents) = split ' ', $header;
1378        while (my $line = shift @commit_lines) {
1379                last if $line eq "\n";
1380                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1381                        $co{'tree'} = $1;
1382                } elsif ((!defined $withparents) && ($line =~ m/^parent ([0-9a-fA-F]{40})$/)) {
1383                        push @parents, $1;
1384                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1385                        $co{'author'} = $1;
1386                        $co{'author_epoch'} = $2;
1387                        $co{'author_tz'} = $3;
1388                        if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
1389                                $co{'author_name'}  = $1;
1390                                $co{'author_email'} = $2;
1391                        } else {
1392                                $co{'author_name'} = $co{'author'};
1393                        }
1394                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1395                        $co{'committer'} = $1;
1396                        $co{'committer_epoch'} = $2;
1397                        $co{'committer_tz'} = $3;
1398                        $co{'committer_name'} = $co{'committer'};
1399                        if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
1400                                $co{'committer_name'}  = $1;
1401                                $co{'committer_email'} = $2;
1402                        } else {
1403                                $co{'committer_name'} = $co{'committer'};
1404                        }
1405                }
1406        }
1407        if (!defined $co{'tree'}) {
1408                return;
1409        };
1410        $co{'parents'} = \@parents;
1411        $co{'parent'} = $parents[0];
1412
1413        foreach my $title (@commit_lines) {
1414                $title =~ s/^    //;
1415                if ($title ne "") {
1416                        $co{'title'} = chop_str($title, 80, 5);
1417                        # remove leading stuff of merges to make the interesting part visible
1418                        if (length($title) > 50) {
1419                                $title =~ s/^Automatic //;
1420                                $title =~ s/^merge (of|with) /Merge ... /i;
1421                                if (length($title) > 50) {
1422                                        $title =~ s/(http|rsync):\/\///;
1423                                }
1424                                if (length($title) > 50) {
1425                                        $title =~ s/(master|www|rsync)\.//;
1426                                }
1427                                if (length($title) > 50) {
1428                                        $title =~ s/kernel.org:?//;
1429                                }
1430                                if (length($title) > 50) {
1431                                        $title =~ s/\/pub\/scm//;
1432                                }
1433                        }
1434                        $co{'title_short'} = chop_str($title, 50, 5);
1435                        last;
1436                }
1437        }
1438        if ($co{'title'} eq "") {
1439                $co{'title'} = $co{'title_short'} = '(no commit message)';
1440        }
1441        # remove added spaces
1442        foreach my $line (@commit_lines) {
1443                $line =~ s/^    //;
1444        }
1445        $co{'comment'} = \@commit_lines;
1446
1447        my $age = time - $co{'committer_epoch'};
1448        $co{'age'} = $age;
1449        $co{'age_string'} = age_string($age);
1450        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1451        if ($age > 60*60*24*7*2) {
1452                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1453                $co{'age_string_age'} = $co{'age_string'};
1454        } else {
1455                $co{'age_string_date'} = $co{'age_string'};
1456                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1457        }
1458        return %co;
1459}
1460
1461sub parse_commit {
1462        my ($commit_id) = @_;
1463        my %co;
1464
1465        local $/ = "\0";
1466
1467        open my $fd, "-|", git_cmd(), "rev-list",
1468                "--parents",
1469                "--header",
1470                "--max-count=1",
1471                $commit_id,
1472                "--",
1473                or die_error(undef, "Open git-rev-list failed");
1474        %co = parse_commit_text(<$fd>, 1);
1475        close $fd;
1476
1477        return %co;
1478}
1479
1480sub parse_commits {
1481        my ($commit_id, $maxcount, $skip, $arg, $filename) = @_;
1482        my @cos;
1483
1484        $maxcount ||= 1;
1485        $skip ||= 0;
1486
1487        local $/ = "\0";
1488
1489        open my $fd, "-|", git_cmd(), "rev-list",
1490                "--header",
1491                ($arg ? ($arg) : ()),
1492                ("--max-count=" . $maxcount),
1493                ("--skip=" . $skip),
1494                $commit_id,
1495                "--",
1496                ($filename ? ($filename) : ())
1497                or die_error(undef, "Open git-rev-list failed");
1498        while (my $line = <$fd>) {
1499                my %co = parse_commit_text($line);
1500                push @cos, \%co;
1501        }
1502        close $fd;
1503
1504        return wantarray ? @cos : \@cos;
1505}
1506
1507# parse ref from ref_file, given by ref_id, with given type
1508sub parse_ref {
1509        my $ref_file = shift;
1510        my $ref_id = shift;
1511        my $type = shift || git_get_type($ref_id);
1512        my %ref_item;
1513
1514        $ref_item{'type'} = $type;
1515        $ref_item{'id'} = $ref_id;
1516        $ref_item{'epoch'} = 0;
1517        $ref_item{'age'} = "unknown";
1518        if ($type eq "tag") {
1519                my %tag = parse_tag($ref_id);
1520                $ref_item{'comment'} = $tag{'comment'};
1521                if ($tag{'type'} eq "commit") {
1522                        my %co = parse_commit($tag{'object'});
1523                        $ref_item{'epoch'} = $co{'committer_epoch'};
1524                        $ref_item{'age'} = $co{'age_string'};
1525                } elsif (defined($tag{'epoch'})) {
1526                        my $age = time - $tag{'epoch'};
1527                        $ref_item{'epoch'} = $tag{'epoch'};
1528                        $ref_item{'age'} = age_string($age);
1529                }
1530                $ref_item{'reftype'} = $tag{'type'};
1531                $ref_item{'name'} = $tag{'name'};
1532                $ref_item{'refid'} = $tag{'object'};
1533        } elsif ($type eq "commit"){
1534                my %co = parse_commit($ref_id);
1535                $ref_item{'reftype'} = "commit";
1536                $ref_item{'name'} = $ref_file;
1537                $ref_item{'title'} = $co{'title'};
1538                $ref_item{'refid'} = $ref_id;
1539                $ref_item{'epoch'} = $co{'committer_epoch'};
1540                $ref_item{'age'} = $co{'age_string'};
1541        } else {
1542                $ref_item{'reftype'} = $type;
1543                $ref_item{'name'} = $ref_file;
1544                $ref_item{'refid'} = $ref_id;
1545        }
1546
1547        return %ref_item;
1548}
1549
1550# parse line of git-diff-tree "raw" output
1551sub parse_difftree_raw_line {
1552        my $line = shift;
1553        my %res;
1554
1555        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1556        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1557        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1558                $res{'from_mode'} = $1;
1559                $res{'to_mode'} = $2;
1560                $res{'from_id'} = $3;
1561                $res{'to_id'} = $4;
1562                $res{'status'} = $5;
1563                $res{'similarity'} = $6;
1564                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1565                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1566                } else {
1567                        $res{'file'} = unquote($7);
1568                }
1569        }
1570        # '::100755 100755 100755 60e79ca1b01bc8b057abe17ddab484699a7f5fdb 94067cc5f73388f33722d52ae02f44692bc07490 94067cc5f73388f33722d52ae02f44692bc07490 MR git-gui/git-gui.sh'
1571        # combined diff (for merge commit)
1572        elsif ($line =~ s/^(::+)((?:[0-7]{6} )+)((?:[0-9a-fA-F]{40} )+)([a-zA-Z]+)\t(.*)$//) {
1573                $res{'nparents'}  = length($1);
1574                $res{'from_mode'} = [ split(' ', $2) ];
1575                $res{'to_mode'} = pop @{$res{'from_mode'}};
1576                $res{'from_id'} = [ split(' ', $3) ];
1577                $res{'to_id'} = pop @{$res{'from_id'}};
1578                $res{'status'} = [ split('', $4) ];
1579                $res{'to_file'} = unquote($5);
1580        }
1581        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1582        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1583                $res{'commit'} = $1;
1584        }
1585
1586        return wantarray ? %res : \%res;
1587}
1588
1589# parse line of git-ls-tree output
1590sub parse_ls_tree_line ($;%) {
1591        my $line = shift;
1592        my %opts = @_;
1593        my %res;
1594
1595        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1596        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1597
1598        $res{'mode'} = $1;
1599        $res{'type'} = $2;
1600        $res{'hash'} = $3;
1601        if ($opts{'-z'}) {
1602                $res{'name'} = $4;
1603        } else {
1604                $res{'name'} = unquote($4);
1605        }
1606
1607        return wantarray ? %res : \%res;
1608}
1609
1610## ......................................................................
1611## parse to array of hashes functions
1612
1613sub git_get_heads_list {
1614        my $limit = shift;
1615        my @headslist;
1616
1617        open my $fd, '-|', git_cmd(), 'for-each-ref',
1618                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1619                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1620                'refs/heads'
1621                or return;
1622        while (my $line = <$fd>) {
1623                my %ref_item;
1624
1625                chomp $line;
1626                my ($refinfo, $committerinfo) = split(/\0/, $line);
1627                my ($hash, $name, $title) = split(' ', $refinfo, 3);
1628                my ($committer, $epoch, $tz) =
1629                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1630                $name =~ s!^refs/heads/!!;
1631
1632                $ref_item{'name'}  = $name;
1633                $ref_item{'id'}    = $hash;
1634                $ref_item{'title'} = $title || '(no commit message)';
1635                $ref_item{'epoch'} = $epoch;
1636                if ($epoch) {
1637                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1638                } else {
1639                        $ref_item{'age'} = "unknown";
1640                }
1641
1642                push @headslist, \%ref_item;
1643        }
1644        close $fd;
1645
1646        return wantarray ? @headslist : \@headslist;
1647}
1648
1649sub git_get_tags_list {
1650        my $limit = shift;
1651        my @tagslist;
1652
1653        open my $fd, '-|', git_cmd(), 'for-each-ref',
1654                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1655                '--format=%(objectname) %(objecttype) %(refname) '.
1656                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1657                'refs/tags'
1658                or return;
1659        while (my $line = <$fd>) {
1660                my %ref_item;
1661
1662                chomp $line;
1663                my ($refinfo, $creatorinfo) = split(/\0/, $line);
1664                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1665                my ($creator, $epoch, $tz) =
1666                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1667                $name =~ s!^refs/tags/!!;
1668
1669                $ref_item{'type'} = $type;
1670                $ref_item{'id'} = $id;
1671                $ref_item{'name'} = $name;
1672                if ($type eq "tag") {
1673                        $ref_item{'subject'} = $title;
1674                        $ref_item{'reftype'} = $reftype;
1675                        $ref_item{'refid'}   = $refid;
1676                } else {
1677                        $ref_item{'reftype'} = $type;
1678                        $ref_item{'refid'}   = $id;
1679                }
1680
1681                if ($type eq "tag" || $type eq "commit") {
1682                        $ref_item{'epoch'} = $epoch;
1683                        if ($epoch) {
1684                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1685                        } else {
1686                                $ref_item{'age'} = "unknown";
1687                        }
1688                }
1689
1690                push @tagslist, \%ref_item;
1691        }
1692        close $fd;
1693
1694        return wantarray ? @tagslist : \@tagslist;
1695}
1696
1697## ----------------------------------------------------------------------
1698## filesystem-related functions
1699
1700sub get_file_owner {
1701        my $path = shift;
1702
1703        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1704        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1705        if (!defined $gcos) {
1706                return undef;
1707        }
1708        my $owner = $gcos;
1709        $owner =~ s/[,;].*$//;
1710        return decode_utf8($owner);
1711}
1712
1713## ......................................................................
1714## mimetype related functions
1715
1716sub mimetype_guess_file {
1717        my $filename = shift;
1718        my $mimemap = shift;
1719        -r $mimemap or return undef;
1720
1721        my %mimemap;
1722        open(MIME, $mimemap) or return undef;
1723        while (<MIME>) {
1724                next if m/^#/; # skip comments
1725                my ($mime, $exts) = split(/\t+/);
1726                if (defined $exts) {
1727                        my @exts = split(/\s+/, $exts);
1728                        foreach my $ext (@exts) {
1729                                $mimemap{$ext} = $mime;
1730                        }
1731                }
1732        }
1733        close(MIME);
1734
1735        $filename =~ /\.([^.]*)$/;
1736        return $mimemap{$1};
1737}
1738
1739sub mimetype_guess {
1740        my $filename = shift;
1741        my $mime;
1742        $filename =~ /\./ or return undef;
1743
1744        if ($mimetypes_file) {
1745                my $file = $mimetypes_file;
1746                if ($file !~ m!^/!) { # if it is relative path
1747                        # it is relative to project
1748                        $file = "$projectroot/$project/$file";
1749                }
1750                $mime = mimetype_guess_file($filename, $file);
1751        }
1752        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1753        return $mime;
1754}
1755
1756sub blob_mimetype {
1757        my $fd = shift;
1758        my $filename = shift;
1759
1760        if ($filename) {
1761                my $mime = mimetype_guess($filename);
1762                $mime and return $mime;
1763        }
1764
1765        # just in case
1766        return $default_blob_plain_mimetype unless $fd;
1767
1768        if (-T $fd) {
1769                return 'text/plain' .
1770                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1771        } elsif (! $filename) {
1772                return 'application/octet-stream';
1773        } elsif ($filename =~ m/\.png$/i) {
1774                return 'image/png';
1775        } elsif ($filename =~ m/\.gif$/i) {
1776                return 'image/gif';
1777        } elsif ($filename =~ m/\.jpe?g$/i) {
1778                return 'image/jpeg';
1779        } else {
1780                return 'application/octet-stream';
1781        }
1782}
1783
1784## ======================================================================
1785## functions printing HTML: header, footer, error page
1786
1787sub git_header_html {
1788        my $status = shift || "200 OK";
1789        my $expires = shift;
1790
1791        my $title = "$site_name";
1792        if (defined $project) {
1793                $title .= " - " . decode_utf8($project);
1794                if (defined $action) {
1795                        $title .= "/$action";
1796                        if (defined $file_name) {
1797                                $title .= " - " . esc_path($file_name);
1798                                if ($action eq "tree" && $file_name !~ m|/$|) {
1799                                        $title .= "/";
1800                                }
1801                        }
1802                }
1803        }
1804        my $content_type;
1805        # require explicit support from the UA if we are to send the page as
1806        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1807        # we have to do this because MSIE sometimes globs '*/*', pretending to
1808        # support xhtml+xml but choking when it gets what it asked for.
1809        if (defined $cgi->http('HTTP_ACCEPT') &&
1810            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1811            $cgi->Accept('application/xhtml+xml') != 0) {
1812                $content_type = 'application/xhtml+xml';
1813        } else {
1814                $content_type = 'text/html';
1815        }
1816        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1817                           -status=> $status, -expires => $expires);
1818        my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : '';
1819        print <<EOF;
1820<?xml version="1.0" encoding="utf-8"?>
1821<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1822<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1823<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1824<!-- git core binaries version $git_version -->
1825<head>
1826<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1827<meta name="generator" content="gitweb/$version git/$git_version$mod_perl_version"/>
1828<meta name="robots" content="index, nofollow"/>
1829<title>$title</title>
1830EOF
1831# print out each stylesheet that exist
1832        if (defined $stylesheet) {
1833#provides backwards capability for those people who define style sheet in a config file
1834                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1835        } else {
1836                foreach my $stylesheet (@stylesheets) {
1837                        next unless $stylesheet;
1838                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1839                }
1840        }
1841        if (defined $project) {
1842                printf('<link rel="alternate" title="%s log RSS feed" '.
1843                       'href="%s" type="application/rss+xml" />'."\n",
1844                       esc_param($project), href(action=>"rss"));
1845                printf('<link rel="alternate" title="%s log Atom feed" '.
1846                       'href="%s" type="application/atom+xml" />'."\n",
1847                       esc_param($project), href(action=>"atom"));
1848        } else {
1849                printf('<link rel="alternate" title="%s projects list" '.
1850                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1851                       $site_name, href(project=>undef, action=>"project_index"));
1852                printf('<link rel="alternate" title="%s projects feeds" '.
1853                       'href="%s" type="text/x-opml"/>'."\n",
1854                       $site_name, href(project=>undef, action=>"opml"));
1855        }
1856        if (defined $favicon) {
1857                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1858        }
1859
1860        print "</head>\n" .
1861              "<body>\n";
1862
1863        if (-f $site_header) {
1864                open (my $fd, $site_header);
1865                print <$fd>;
1866                close $fd;
1867        }
1868
1869        print "<div class=\"page_header\">\n" .
1870              $cgi->a({-href => esc_url($logo_url),
1871                       -title => $logo_label},
1872                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1873        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1874        if (defined $project) {
1875                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1876                if (defined $action) {
1877                        print " / $action";
1878                }
1879                print "\n";
1880        }
1881        my ($have_search) = gitweb_check_feature('search');
1882        if ((defined $project) && ($have_search)) {
1883                if (!defined $searchtext) {
1884                        $searchtext = "";
1885                }
1886                my $search_hash;
1887                if (defined $hash_base) {
1888                        $search_hash = $hash_base;
1889                } elsif (defined $hash) {
1890                        $search_hash = $hash;
1891                } else {
1892                        $search_hash = "HEAD";
1893                }
1894                $cgi->param("a", "search");
1895                $cgi->param("h", $search_hash);
1896                $cgi->param("p", $project);
1897                print $cgi->startform(-method => "get", -action => $my_uri) .
1898                      "<div class=\"search\">\n" .
1899                      $cgi->hidden(-name => "p") . "\n" .
1900                      $cgi->hidden(-name => "a") . "\n" .
1901                      $cgi->hidden(-name => "h") . "\n" .
1902                      $cgi->popup_menu(-name => 'st', -default => 'commit',
1903                                       -values => ['commit', 'author', 'committer', 'pickaxe']) .
1904                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1905                      " search:\n",
1906                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1907                      "</div>" .
1908                      $cgi->end_form() . "\n";
1909        }
1910        print "</div>\n";
1911}
1912
1913sub git_footer_html {
1914        print "<div class=\"page_footer\">\n";
1915        if (defined $project) {
1916                my $descr = git_get_project_description($project);
1917                if (defined $descr) {
1918                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1919                }
1920                print $cgi->a({-href => href(action=>"rss"),
1921                              -class => "rss_logo"}, "RSS") . " ";
1922                print $cgi->a({-href => href(action=>"atom"),
1923                              -class => "rss_logo"}, "Atom") . "\n";
1924        } else {
1925                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1926                              -class => "rss_logo"}, "OPML") . " ";
1927                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1928                              -class => "rss_logo"}, "TXT") . "\n";
1929        }
1930        print "</div>\n" ;
1931
1932        if (-f $site_footer) {
1933                open (my $fd, $site_footer);
1934                print <$fd>;
1935                close $fd;
1936        }
1937
1938        print "</body>\n" .
1939              "</html>";
1940}
1941
1942sub die_error {
1943        my $status = shift || "403 Forbidden";
1944        my $error = shift || "Malformed query, file missing or permission denied";
1945
1946        git_header_html($status);
1947        print <<EOF;
1948<div class="page_body">
1949<br /><br />
1950$status - $error
1951<br />
1952</div>
1953EOF
1954        git_footer_html();
1955        exit;
1956}
1957
1958## ----------------------------------------------------------------------
1959## functions printing or outputting HTML: navigation
1960
1961sub git_print_page_nav {
1962        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1963        $extra = '' if !defined $extra; # pager or formats
1964
1965        my @navs = qw(summary shortlog log commit commitdiff tree);
1966        if ($suppress) {
1967                @navs = grep { $_ ne $suppress } @navs;
1968        }
1969
1970        my %arg = map { $_ => {action=>$_} } @navs;
1971        if (defined $head) {
1972                for (qw(commit commitdiff)) {
1973                        $arg{$_}{'hash'} = $head;
1974                }
1975                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1976                        for (qw(shortlog log)) {
1977                                $arg{$_}{'hash'} = $head;
1978                        }
1979                }
1980        }
1981        $arg{'tree'}{'hash'} = $treehead if defined $treehead;
1982        $arg{'tree'}{'hash_base'} = $treebase if defined $treebase;
1983
1984        print "<div class=\"page_nav\">\n" .
1985                (join " | ",
1986                 map { $_ eq $current ?
1987                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1988                 } @navs);
1989        print "<br/>\n$extra<br/>\n" .
1990              "</div>\n";
1991}
1992
1993sub format_paging_nav {
1994        my ($action, $hash, $head, $page, $nrevs) = @_;
1995        my $paging_nav;
1996
1997
1998        if ($hash ne $head || $page) {
1999                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
2000        } else {
2001                $paging_nav .= "HEAD";
2002        }
2003
2004        if ($page > 0) {
2005                $paging_nav .= " &sdot; " .
2006                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
2007                                 -accesskey => "p", -title => "Alt-p"}, "prev");
2008        } else {
2009                $paging_nav .= " &sdot; prev";
2010        }
2011
2012        if ($nrevs >= (100 * ($page+1)-1)) {
2013                $paging_nav .= " &sdot; " .
2014                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
2015                                 -accesskey => "n", -title => "Alt-n"}, "next");
2016        } else {
2017                $paging_nav .= " &sdot; next";
2018        }
2019
2020        return $paging_nav;
2021}
2022
2023## ......................................................................
2024## functions printing or outputting HTML: div
2025
2026sub git_print_header_div {
2027        my ($action, $title, $hash, $hash_base) = @_;
2028        my %args = ();
2029
2030        $args{'action'} = $action;
2031        $args{'hash'} = $hash if $hash;
2032        $args{'hash_base'} = $hash_base if $hash_base;
2033
2034        print "<div class=\"header\">\n" .
2035              $cgi->a({-href => href(%args), -class => "title"},
2036              $title ? $title : $action) .
2037              "\n</div>\n";
2038}
2039
2040#sub git_print_authorship (\%) {
2041sub git_print_authorship {
2042        my $co = shift;
2043
2044        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
2045        print "<div class=\"author_date\">" .
2046              esc_html($co->{'author_name'}) .
2047              " [$ad{'rfc2822'}";
2048        if ($ad{'hour_local'} < 6) {
2049                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
2050                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2051        } else {
2052                printf(" (%02d:%02d %s)",
2053                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2054        }
2055        print "]</div>\n";
2056}
2057
2058sub git_print_page_path {
2059        my $name = shift;
2060        my $type = shift;
2061        my $hb = shift;
2062
2063
2064        print "<div class=\"page_path\">";
2065        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
2066                      -title => 'tree root'}, decode_utf8("[$project]"));
2067        print " / ";
2068        if (defined $name) {
2069                my @dirname = split '/', $name;
2070                my $basename = pop @dirname;
2071                my $fullname = '';
2072
2073                foreach my $dir (@dirname) {
2074                        $fullname .= ($fullname ? '/' : '') . $dir;
2075                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
2076                                                     hash_base=>$hb),
2077                                      -title => $fullname}, esc_path($dir));
2078                        print " / ";
2079                }
2080                if (defined $type && $type eq 'blob') {
2081                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
2082                                                     hash_base=>$hb),
2083                                      -title => $name}, esc_path($basename));
2084                } elsif (defined $type && $type eq 'tree') {
2085                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
2086                                                     hash_base=>$hb),
2087                                      -title => $name}, esc_path($basename));
2088                        print " / ";
2089                } else {
2090                        print esc_path($basename);
2091                }
2092        }
2093        print "<br/></div>\n";
2094}
2095
2096# sub git_print_log (\@;%) {
2097sub git_print_log ($;%) {
2098        my $log = shift;
2099        my %opts = @_;
2100
2101        if ($opts{'-remove_title'}) {
2102                # remove title, i.e. first line of log
2103                shift @$log;
2104        }
2105        # remove leading empty lines
2106        while (defined $log->[0] && $log->[0] eq "") {
2107                shift @$log;
2108        }
2109
2110        # print log
2111        my $signoff = 0;
2112        my $empty = 0;
2113        foreach my $line (@$log) {
2114                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2115                        $signoff = 1;
2116                        $empty = 0;
2117                        if (! $opts{'-remove_signoff'}) {
2118                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2119                                next;
2120                        } else {
2121                                # remove signoff lines
2122                                next;
2123                        }
2124                } else {
2125                        $signoff = 0;
2126                }
2127
2128                # print only one empty line
2129                # do not print empty line after signoff
2130                if ($line eq "") {
2131                        next if ($empty || $signoff);
2132                        $empty = 1;
2133                } else {
2134                        $empty = 0;
2135                }
2136
2137                print format_log_line_html($line) . "<br/>\n";
2138        }
2139
2140        if ($opts{'-final_empty_line'}) {
2141                # end with single empty line
2142                print "<br/>\n" unless $empty;
2143        }
2144}
2145
2146# return link target (what link points to)
2147sub git_get_link_target {
2148        my $hash = shift;
2149        my $link_target;
2150
2151        # read link
2152        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2153                or return;
2154        {
2155                local $/;
2156                $link_target = <$fd>;
2157        }
2158        close $fd
2159                or return;
2160
2161        return $link_target;
2162}
2163
2164# given link target, and the directory (basedir) the link is in,
2165# return target of link relative to top directory (top tree);
2166# return undef if it is not possible (including absolute links).
2167sub normalize_link_target {
2168        my ($link_target, $basedir, $hash_base) = @_;
2169
2170        # we can normalize symlink target only if $hash_base is provided
2171        return unless $hash_base;
2172
2173        # absolute symlinks (beginning with '/') cannot be normalized
2174        return if (substr($link_target, 0, 1) eq '/');
2175
2176        # normalize link target to path from top (root) tree (dir)
2177        my $path;
2178        if ($basedir) {
2179                $path = $basedir . '/' . $link_target;
2180        } else {
2181                # we are in top (root) tree (dir)
2182                $path = $link_target;
2183        }
2184
2185        # remove //, /./, and /../
2186        my @path_parts;
2187        foreach my $part (split('/', $path)) {
2188                # discard '.' and ''
2189                next if (!$part || $part eq '.');
2190                # handle '..'
2191                if ($part eq '..') {
2192                        if (@path_parts) {
2193                                pop @path_parts;
2194                        } else {
2195                                # link leads outside repository (outside top dir)
2196                                return;
2197                        }
2198                } else {
2199                        push @path_parts, $part;
2200                }
2201        }
2202        $path = join('/', @path_parts);
2203
2204        return $path;
2205}
2206
2207# print tree entry (row of git_tree), but without encompassing <tr> element
2208sub git_print_tree_entry {
2209        my ($t, $basedir, $hash_base, $have_blame) = @_;
2210
2211        my %base_key = ();
2212        $base_key{'hash_base'} = $hash_base if defined $hash_base;
2213
2214        # The format of a table row is: mode list link.  Where mode is
2215        # the mode of the entry, list is the name of the entry, an href,
2216        # and link is the action links of the entry.
2217
2218        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
2219        if ($t->{'type'} eq "blob") {
2220                print "<td class=\"list\">" .
2221                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2222                                               file_name=>"$basedir$t->{'name'}", %base_key),
2223                                -class => "list"}, esc_path($t->{'name'}));
2224                if (S_ISLNK(oct $t->{'mode'})) {
2225                        my $link_target = git_get_link_target($t->{'hash'});
2226                        if ($link_target) {
2227                                my $norm_target = normalize_link_target($link_target, $basedir, $hash_base);
2228                                if (defined $norm_target) {
2229                                        print " -> " .
2230                                              $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
2231                                                                     file_name=>$norm_target),
2232                                                       -title => $norm_target}, esc_path($link_target));
2233                                } else {
2234                                        print " -> " . esc_path($link_target);
2235                                }
2236                        }
2237                }
2238                print "</td>\n";
2239                print "<td class=\"link\">";
2240                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2241                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2242                              "blob");
2243                if ($have_blame) {
2244                        print " | " .
2245                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
2246                                                     file_name=>"$basedir$t->{'name'}", %base_key)},
2247                                      "blame");
2248                }
2249                if (defined $hash_base) {
2250                        print " | " .
2251                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2252                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2253                                      "history");
2254                }
2255                print " | " .
2256                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2257                                               file_name=>"$basedir$t->{'name'}")},
2258                                "raw");
2259                print "</td>\n";
2260
2261        } elsif ($t->{'type'} eq "tree") {
2262                print "<td class=\"list\">";
2263                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2264                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2265                              esc_path($t->{'name'}));
2266                print "</td>\n";
2267                print "<td class=\"link\">";
2268                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2269                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2270                              "tree");
2271                if (defined $hash_base) {
2272                        print " | " .
2273                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2274                                                     file_name=>"$basedir$t->{'name'}")},
2275                                      "history");
2276                }
2277                print "</td>\n";
2278        }
2279}
2280
2281## ......................................................................
2282## functions printing large fragments of HTML
2283
2284sub fill_from_file_info {
2285        my ($diff, @parents) = @_;
2286
2287        $diff->{'from_file'} = [ ];
2288        $diff->{'from_file'}[$diff->{'nparents'} - 1] = undef;
2289        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2290                if ($diff->{'status'}[$i] eq 'R' ||
2291                    $diff->{'status'}[$i] eq 'C') {
2292                        $diff->{'from_file'}[$i] =
2293                                git_get_path_by_hash($parents[$i], $diff->{'from_id'}[$i]);
2294                }
2295        }
2296
2297        return $diff;
2298}
2299
2300# parameters can be strings, or references to arrays of strings
2301sub from_ids_eq {
2302        my ($a, $b) = @_;
2303
2304        if (ref($a) eq "ARRAY" && ref($b) eq "ARRAY" && @$a == @$b) {
2305                for (my $i = 0; $i < @$a; ++$i) {
2306                        return 0 unless ($a->[$i] eq $b->[$i]);
2307                }
2308                return 1;
2309        } elsif (!ref($a) && !ref($b)) {
2310                return $a eq $b;
2311        } else {
2312                return 0;
2313        }
2314}
2315
2316
2317sub git_difftree_body {
2318        my ($difftree, $hash, @parents) = @_;
2319        my ($parent) = $parents[0];
2320        my ($have_blame) = gitweb_check_feature('blame');
2321        print "<div class=\"list_head\">\n";
2322        if ($#{$difftree} > 10) {
2323                print(($#{$difftree} + 1) . " files changed:\n");
2324        }
2325        print "</div>\n";
2326
2327        print "<table class=\"" .
2328              (@parents > 1 ? "combined " : "") .
2329              "diff_tree\">\n";
2330        my $alternate = 1;
2331        my $patchno = 0;
2332        foreach my $line (@{$difftree}) {
2333                my $diff;
2334                if (ref($line) eq "HASH") {
2335                        # pre-parsed (or generated by hand)
2336                        $diff = $line;
2337                } else {
2338                        $diff = parse_difftree_raw_line($line);
2339                }
2340
2341                if ($alternate) {
2342                        print "<tr class=\"dark\">\n";
2343                } else {
2344                        print "<tr class=\"light\">\n";
2345                }
2346                $alternate ^= 1;
2347
2348                if (exists $diff->{'nparents'}) { # combined diff
2349
2350                        fill_from_file_info($diff, @parents)
2351                                unless exists $diff->{'from_file'};
2352
2353                        if ($diff->{'to_id'} ne ('0' x 40)) {
2354                                # file exists in the result (child) commit
2355                                print "<td>" .
2356                                      $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2357                                                             file_name=>$diff->{'to_file'},
2358                                                             hash_base=>$hash),
2359                                              -class => "list"}, esc_path($diff->{'to_file'})) .
2360                                      "</td>\n";
2361                        } else {
2362                                print "<td>" .
2363                                      esc_path($diff->{'to_file'}) .
2364                                      "</td>\n";
2365                        }
2366
2367                        if ($action eq 'commitdiff') {
2368                                # link to patch
2369                                $patchno++;
2370                                print "<td class=\"link\">" .
2371                                      $cgi->a({-href => "#patch$patchno"}, "patch") .
2372                                      " | " .
2373                                      "</td>\n";
2374                        }
2375
2376                        my $has_history = 0;
2377                        my $not_deleted = 0;
2378                        for (my $i = 0; $i < $diff->{'nparents'}; $i++) {
2379                                my $hash_parent = $parents[$i];
2380                                my $from_hash = $diff->{'from_id'}[$i];
2381                                my $from_path = $diff->{'from_file'}[$i];
2382                                my $status = $diff->{'status'}[$i];
2383
2384                                $has_history ||= ($status ne 'A');
2385                                $not_deleted ||= ($status ne 'D');
2386
2387                                if ($status eq 'A') {
2388                                        print "<td  class=\"link\" align=\"right\"> | </td>\n";
2389                                } elsif ($status eq 'D') {
2390                                        print "<td class=\"link\">" .
2391                                              $cgi->a({-href => href(action=>"blob",
2392                                                                     hash_base=>$hash,
2393                                                                     hash=>$from_hash,
2394                                                                     file_name=>$from_path)},
2395                                                      "blob" . ($i+1)) .
2396                                              " | </td>\n";
2397                                } else {
2398                                        if ($diff->{'to_id'} eq $from_hash) {
2399                                                print "<td class=\"link nochange\">";
2400                                        } else {
2401                                                print "<td class=\"link\">";
2402                                        }
2403                                        print $cgi->a({-href => href(action=>"blobdiff",
2404                                                                     hash=>$diff->{'to_id'},
2405                                                                     hash_parent=>$from_hash,
2406                                                                     hash_base=>$hash,
2407                                                                     hash_parent_base=>$hash_parent,
2408                                                                     file_name=>$diff->{'to_file'},
2409                                                                     file_parent=>$from_path)},
2410                                                      "diff" . ($i+1)) .
2411                                              " | </td>\n";
2412                                }
2413                        }
2414
2415                        print "<td class=\"link\">";
2416                        if ($not_deleted) {
2417                                print $cgi->a({-href => href(action=>"blob",
2418                                                             hash=>$diff->{'to_id'},
2419                                                             file_name=>$diff->{'to_file'},
2420                                                             hash_base=>$hash)},
2421                                              "blob");
2422                                print " | " if ($has_history);
2423                        }
2424                        if ($has_history) {
2425                                print $cgi->a({-href => href(action=>"history",
2426                                                             file_name=>$diff->{'to_file'},
2427                                                             hash_base=>$hash)},
2428                                              "history");
2429                        }
2430                        print "</td>\n";
2431
2432                        print "</tr>\n";
2433                        next; # instead of 'else' clause, to avoid extra indent
2434                }
2435                # else ordinary diff
2436
2437                my ($to_mode_oct, $to_mode_str, $to_file_type);
2438                my ($from_mode_oct, $from_mode_str, $from_file_type);
2439                if ($diff->{'to_mode'} ne ('0' x 6)) {
2440                        $to_mode_oct = oct $diff->{'to_mode'};
2441                        if (S_ISREG($to_mode_oct)) { # only for regular file
2442                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2443                        }
2444                        $to_file_type = file_type($diff->{'to_mode'});
2445                }
2446                if ($diff->{'from_mode'} ne ('0' x 6)) {
2447                        $from_mode_oct = oct $diff->{'from_mode'};
2448                        if (S_ISREG($to_mode_oct)) { # only for regular file
2449                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2450                        }
2451                        $from_file_type = file_type($diff->{'from_mode'});
2452                }
2453
2454                if ($diff->{'status'} eq "A") { # created
2455                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2456                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2457                        $mode_chng   .= "]</span>";
2458                        print "<td>";
2459                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2460                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
2461                                      -class => "list"}, esc_path($diff->{'file'}));
2462                        print "</td>\n";
2463                        print "<td>$mode_chng</td>\n";
2464                        print "<td class=\"link\">";
2465                        if ($action eq 'commitdiff') {
2466                                # link to patch
2467                                $patchno++;
2468                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2469                                print " | ";
2470                        }
2471                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2472                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
2473                                      "blob");
2474                        print "</td>\n";
2475
2476                } elsif ($diff->{'status'} eq "D") { # deleted
2477                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2478                        print "<td>";
2479                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
2480                                                     hash_base=>$parent, file_name=>$diff->{'file'}),
2481                                       -class => "list"}, esc_path($diff->{'file'}));
2482                        print "</td>\n";
2483                        print "<td>$mode_chng</td>\n";
2484                        print "<td class=\"link\">";
2485                        if ($action eq 'commitdiff') {
2486                                # link to patch
2487                                $patchno++;
2488                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2489                                print " | ";
2490                        }
2491                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'from_id'},
2492                                                     hash_base=>$parent, file_name=>$diff->{'file'})},
2493                                      "blob") . " | ";
2494                        if ($have_blame) {
2495                                print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2496                                                             file_name=>$diff->{'file'})},
2497                                              "blame") . " | ";
2498                        }
2499                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2500                                                     file_name=>$diff->{'file'})},
2501                                      "history");
2502                        print "</td>\n";
2503
2504                } elsif ($diff->{'status'} eq "M" || $diff->{'status'} eq "T") { # modified, or type changed
2505                        my $mode_chnge = "";
2506                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
2507                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
2508                                if ($from_file_type ne $to_file_type) {
2509                                        $mode_chnge .= " from $from_file_type to $to_file_type";
2510                                }
2511                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
2512                                        if ($from_mode_str && $to_mode_str) {
2513                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2514                                        } elsif ($to_mode_str) {
2515                                                $mode_chnge .= " mode: $to_mode_str";
2516                                        }
2517                                }
2518                                $mode_chnge .= "]</span>\n";
2519                        }
2520                        print "<td>";
2521                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2522                                                     hash_base=>$hash, file_name=>$diff->{'file'}),
2523                                      -class => "list"}, esc_path($diff->{'file'}));
2524                        print "</td>\n";
2525                        print "<td>$mode_chnge</td>\n";
2526                        print "<td class=\"link\">";
2527                        if ($action eq 'commitdiff') {
2528                                # link to patch
2529                                $patchno++;
2530                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2531                                      " | ";
2532                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
2533                                # "commit" view and modified file (not onlu mode changed)
2534                                print $cgi->a({-href => href(action=>"blobdiff",
2535                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
2536                                                             hash_base=>$hash, hash_parent_base=>$parent,
2537                                                             file_name=>$diff->{'file'})},
2538                                              "diff") .
2539                                      " | ";
2540                        }
2541                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2542                                                     hash_base=>$hash, file_name=>$diff->{'file'})},
2543                                       "blob") . " | ";
2544                        if ($have_blame) {
2545                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2546                                                             file_name=>$diff->{'file'})},
2547                                              "blame") . " | ";
2548                        }
2549                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2550                                                     file_name=>$diff->{'file'})},
2551                                      "history");
2552                        print "</td>\n";
2553
2554                } elsif ($diff->{'status'} eq "R" || $diff->{'status'} eq "C") { # renamed or copied
2555                        my %status_name = ('R' => 'moved', 'C' => 'copied');
2556                        my $nstatus = $status_name{$diff->{'status'}};
2557                        my $mode_chng = "";
2558                        if ($diff->{'from_mode'} != $diff->{'to_mode'}) {
2559                                # mode also for directories, so we cannot use $to_mode_str
2560                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2561                        }
2562                        print "<td>" .
2563                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2564                                                     hash=>$diff->{'to_id'}, file_name=>$diff->{'to_file'}),
2565                                      -class => "list"}, esc_path($diff->{'to_file'})) . "</td>\n" .
2566                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2567                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2568                                                     hash=>$diff->{'from_id'}, file_name=>$diff->{'from_file'}),
2569                                      -class => "list"}, esc_path($diff->{'from_file'})) .
2570                              " with " . (int $diff->{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2571                              "<td class=\"link\">";
2572                        if ($action eq 'commitdiff') {
2573                                # link to patch
2574                                $patchno++;
2575                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2576                                      " | ";
2577                        } elsif ($diff->{'to_id'} ne $diff->{'from_id'}) {
2578                                # "commit" view and modified file (not only pure rename or copy)
2579                                print $cgi->a({-href => href(action=>"blobdiff",
2580                                                             hash=>$diff->{'to_id'}, hash_parent=>$diff->{'from_id'},
2581                                                             hash_base=>$hash, hash_parent_base=>$parent,
2582                                                             file_name=>$diff->{'to_file'}, file_parent=>$diff->{'from_file'})},
2583                                              "diff") .
2584                                      " | ";
2585                        }
2586                        print $cgi->a({-href => href(action=>"blob", hash=>$diff->{'to_id'},
2587                                                     hash_base=>$parent, file_name=>$diff->{'to_file'})},
2588                                      "blob") . " | ";
2589                        if ($have_blame) {
2590                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2591                                                             file_name=>$diff->{'to_file'})},
2592                                              "blame") . " | ";
2593                        }
2594                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2595                                                    file_name=>$diff->{'to_file'})},
2596                                      "history");
2597                        print "</td>\n";
2598
2599                } # we should not encounter Unmerged (U) or Unknown (X) status
2600                print "</tr>\n";
2601        }
2602        print "</table>\n";
2603}
2604
2605sub git_patchset_body {
2606        my ($fd, $difftree, $hash, @hash_parents) = @_;
2607        my ($hash_parent) = $hash_parents[0];
2608
2609        my $patch_idx = 0;
2610        my $patch_number = 0;
2611        my $patch_line;
2612        my $diffinfo;
2613        my (%from, %to);
2614
2615        print "<div class=\"patchset\">\n";
2616
2617        # skip to first patch
2618        while ($patch_line = <$fd>) {
2619                chomp $patch_line;
2620
2621                last if ($patch_line =~ m/^diff /);
2622        }
2623
2624 PATCH:
2625        while ($patch_line) {
2626                my @diff_header;
2627                my ($from_id, $to_id);
2628
2629                # git diff header
2630                #assert($patch_line =~ m/^diff /) if DEBUG;
2631                #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
2632                $patch_number++;
2633                push @diff_header, $patch_line;
2634
2635                # extended diff header
2636        EXTENDED_HEADER:
2637                while ($patch_line = <$fd>) {
2638                        chomp $patch_line;
2639
2640                        last EXTENDED_HEADER if ($patch_line =~ m/^--- |^diff /);
2641
2642                        if ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
2643                                $from_id = $1;
2644                                $to_id   = $2;
2645                        } elsif ($patch_line =~ m/^index ((?:[0-9a-fA-F]{40},)+[0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
2646                                $from_id = [ split(',', $1) ];
2647                                $to_id   = $2;
2648                        }
2649
2650                        push @diff_header, $patch_line;
2651                }
2652                my $last_patch_line = $patch_line;
2653
2654                # check if current patch belong to current raw line
2655                # and parse raw git-diff line if needed
2656                if (defined $diffinfo &&
2657                    from_ids_eq($diffinfo->{'from_id'}, $from_id) &&
2658                    $diffinfo->{'to_id'} eq $to_id) {
2659                        # this is split patch
2660                        print "<div class=\"patch cont\">\n";
2661                } else {
2662                        # advance raw git-diff output if needed
2663                        $patch_idx++ if defined $diffinfo;
2664
2665                        # read and prepare patch information
2666                        if (ref($difftree->[$patch_idx]) eq "HASH") {
2667                                # pre-parsed (or generated by hand)
2668                                $diffinfo = $difftree->[$patch_idx];
2669                        } else {
2670                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2671                        }
2672                        if ($diffinfo->{'nparents'}) {
2673                                # combined diff
2674                                $from{'file'} = [];
2675                                $from{'href'} = [];
2676                                fill_from_file_info($diffinfo, @hash_parents)
2677                                        unless exists $diffinfo->{'from_file'};
2678                                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
2679                                        $from{'file'}[$i] = $diffinfo->{'from_file'}[$i] || $diffinfo->{'to_file'};
2680                                        if ($diffinfo->{'status'}[$i] ne "A") { # not new (added) file
2681                                                $from{'href'}[$i] = href(action=>"blob",
2682                                                                         hash_base=>$hash_parents[$i],
2683                                                                         hash=>$diffinfo->{'from_id'}[$i],
2684                                                                         file_name=>$from{'file'}[$i]);
2685                                        } else {
2686                                                $from{'href'}[$i] = undef;
2687                                        }
2688                                }
2689                        } else {
2690                                $from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2691                                if ($diffinfo->{'status'} ne "A") { # not new (added) file
2692                                        $from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2693                                                             hash=>$diffinfo->{'from_id'},
2694                                                             file_name=>$from{'file'});
2695                                } else {
2696                                        delete $from{'href'};
2697                                }
2698                        }
2699                        $to{'file'} = $diffinfo->{'to_file'} || $diffinfo->{'file'};
2700                        if ($diffinfo->{'status'} ne "D") { # not deleted file
2701                                $to{'href'} = href(action=>"blob", hash_base=>$hash,
2702                                                   hash=>$diffinfo->{'to_id'},
2703                                                   file_name=>$to{'file'});
2704                        } else {
2705                                delete $to{'href'};
2706                        }
2707                        # this is first patch for raw difftree line with $patch_idx index
2708                        # we index @$difftree array from 0, but number patches from 1
2709                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2710                }
2711
2712                # print "git diff" header
2713                $patch_line = shift @diff_header;
2714                if ($diffinfo->{'nparents'}) {
2715
2716                        # combined diff
2717                        $patch_line =~ s!^(diff (.*?) )"?.*$!$1!;
2718                        if ($to{'href'}) {
2719                                $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2720                                                       esc_path($to{'file'}));
2721                        } else { # file was deleted
2722                                $patch_line .= esc_path($to{'file'});
2723                        }
2724
2725                } else {
2726
2727                        $patch_line =~ s!^(diff (.*?) )"?a/.*$!$1!;
2728                        if ($from{'href'}) {
2729                                $patch_line .= $cgi->a({-href => $from{'href'}, -class => "path"},
2730                                                       'a/' . esc_path($from{'file'}));
2731                        } else { # file was added
2732                                $patch_line .= 'a/' . esc_path($from{'file'});
2733                        }
2734                        $patch_line .= ' ';
2735                        if ($to{'href'}) {
2736                                $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2737                                                       'b/' . esc_path($to{'file'}));
2738                        } else { # file was deleted
2739                                $patch_line .= 'b/' . esc_path($to{'file'});
2740                        }
2741
2742                }
2743                print "<div class=\"diff header\">$patch_line</div>\n";
2744
2745                # print extended diff header
2746                print "<div class=\"diff extended_header\">\n" if (@diff_header > 0);
2747        EXTENDED_HEADER:
2748                foreach $patch_line (@diff_header) {
2749                        # match <path>
2750                        if ($patch_line =~ s!^((copy|rename) from ).*$!$1! && $from{'href'}) {
2751                                $patch_line .= $cgi->a({-href=>$from{'href'}, -class=>"path"},
2752                                                       esc_path($from{'file'}));
2753                        }
2754                        if ($patch_line =~ s!^((copy|rename) to ).*$!$1! && $to{'href'}) {
2755                                $patch_line .= $cgi->a({-href=>$to{'href'}, -class=>"path"},
2756                                                       esc_path($to{'file'}));
2757                        }
2758                        # match single <mode>
2759                        if ($patch_line =~ m/\s(\d{6})$/) {
2760                                $patch_line .= '<span class="info"> (' .
2761                                               file_type_long($1) .
2762                                               ')</span>';
2763                        }
2764                        # match <hash>
2765                        if ($patch_line =~ m/^index [0-9a-fA-F]{40},[0-9a-fA-F]{40}/) {
2766                                # can match only for combined diff
2767                                $patch_line = 'index ';
2768                                for (my $i = 0; $i < $diffinfo->{'nparents'}; $i++) {
2769                                        if ($from{'href'}[$i]) {
2770                                                $patch_line .= $cgi->a({-href=>$from{'href'}[$i],
2771                                                                        -class=>"hash"},
2772                                                                       substr($diffinfo->{'from_id'}[$i],0,7));
2773                                        } else {
2774                                                $patch_line .= '0' x 7;
2775                                        }
2776                                        # separator
2777                                        $patch_line .= ',' if ($i < $diffinfo->{'nparents'} - 1);
2778                                }
2779                                $patch_line .= '..';
2780                                if ($to{'href'}) {
2781                                        $patch_line .= $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2782                                                               substr($diffinfo->{'to_id'},0,7));
2783                                } else {
2784                                        $patch_line .= '0' x 7;
2785                                }
2786
2787                        } elsif ($patch_line =~ m/^index [0-9a-fA-F]{40}..[0-9a-fA-F]{40}/) {
2788                                # can match only for ordinary diff
2789                                my ($from_link, $to_link);
2790                                if ($from{'href'}) {
2791                                        $from_link = $cgi->a({-href=>$from{'href'}, -class=>"hash"},
2792                                                             substr($diffinfo->{'from_id'},0,7));
2793                                } else {
2794                                        $from_link = '0' x 7;
2795                                }
2796                                if ($to{'href'}) {
2797                                        $to_link = $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2798                                                           substr($diffinfo->{'to_id'},0,7));
2799                                } else {
2800                                        $to_link = '0' x 7;
2801                                }
2802                                #affirm {
2803                                #       my ($from_hash, $to_hash) =
2804                                #               ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/);
2805                                #       my ($from_id, $to_id) =
2806                                #               ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2807                                #       ($from_hash eq $from_id) && ($to_hash eq $to_id);
2808                                #} if DEBUG;
2809                                my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2810                                $patch_line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
2811                        }
2812                        print $patch_line . "<br/>\n";
2813                }
2814                print "</div>\n"  if (@diff_header > 0); # class="diff extended_header"
2815
2816                # from-file/to-file diff header
2817                $patch_line = $last_patch_line;
2818                if (! $patch_line) {
2819                        print "</div>\n"; # class="patch"
2820                        last PATCH;
2821                }
2822                next PATCH if ($patch_line =~ m/^diff /);
2823                #assert($patch_line =~ m/^---/) if DEBUG;
2824                if (!$diffinfo->{'nparents'} && # not from-file line for combined diff
2825                    $from{'href'} && $patch_line =~ m!^--- "?a/!) {
2826                        $patch_line = '--- a/' .
2827                                      $cgi->a({-href=>$from{'href'}, -class=>"path"},
2828                                              esc_path($from{'file'}));
2829                }
2830                print "<div class=\"diff from_file\">$patch_line</div>\n";
2831
2832                $patch_line = <$fd>;
2833                chomp $patch_line;
2834
2835                #assert($patch_line =~ m/^+++/) if DEBUG;
2836                if ($to{'href'} && $patch_line =~ m!^\+\+\+ "?b/!) {
2837                        $patch_line = '+++ b/' .
2838                                      $cgi->a({-href=>$to{'href'}, -class=>"path"},
2839                                              esc_path($to{'file'}));
2840                }
2841                print "<div class=\"diff to_file\">$patch_line</div>\n";
2842
2843                # the patch itself
2844        LINE:
2845                while ($patch_line = <$fd>) {
2846                        chomp $patch_line;
2847
2848                        next PATCH if ($patch_line =~ m/^diff /);
2849
2850                        print format_diff_line($patch_line, \%from, \%to);
2851                }
2852
2853        } continue {
2854                print "</div>\n"; # class="patch"
2855        }
2856        print "<div class=\"diff nodifferences\">No differences found</div>\n" if (!$patch_number);
2857
2858        print "</div>\n"; # class="patchset"
2859}
2860
2861# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2862
2863sub git_project_list_body {
2864        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2865
2866        my ($check_forks) = gitweb_check_feature('forks');
2867
2868        my @projects;
2869        foreach my $pr (@$projlist) {
2870                my (@aa) = git_get_last_activity($pr->{'path'});
2871                unless (@aa) {
2872                        next;
2873                }
2874                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2875                if (!defined $pr->{'descr'}) {
2876                        my $descr = git_get_project_description($pr->{'path'}) || "";
2877                        $pr->{'descr_long'} = decode_utf8($descr);
2878                        $pr->{'descr'} = chop_str($descr, 25, 5);
2879                }
2880                if (!defined $pr->{'owner'}) {
2881                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2882                }
2883                if ($check_forks) {
2884                        my $pname = $pr->{'path'};
2885                        if (($pname =~ s/\.git$//) &&
2886                            ($pname !~ /\/$/) &&
2887                            (-d "$projectroot/$pname")) {
2888                                $pr->{'forks'} = "-d $projectroot/$pname";
2889                        }
2890                        else {
2891                                $pr->{'forks'} = 0;
2892                        }
2893                }
2894                push @projects, $pr;
2895        }
2896
2897        $order ||= $default_projects_order;
2898        $from = 0 unless defined $from;
2899        $to = $#projects if (!defined $to || $#projects < $to);
2900
2901        print "<table class=\"project_list\">\n";
2902        unless ($no_header) {
2903                print "<tr>\n";
2904                if ($check_forks) {
2905                        print "<th></th>\n";
2906                }
2907                if ($order eq "project") {
2908                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2909                        print "<th>Project</th>\n";
2910                } else {
2911                        print "<th>" .
2912                              $cgi->a({-href => href(project=>undef, order=>'project'),
2913                                       -class => "header"}, "Project") .
2914                              "</th>\n";
2915                }
2916                if ($order eq "descr") {
2917                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2918                        print "<th>Description</th>\n";
2919                } else {
2920                        print "<th>" .
2921                              $cgi->a({-href => href(project=>undef, order=>'descr'),
2922                                       -class => "header"}, "Description") .
2923                              "</th>\n";
2924                }
2925                if ($order eq "owner") {
2926                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2927                        print "<th>Owner</th>\n";
2928                } else {
2929                        print "<th>" .
2930                              $cgi->a({-href => href(project=>undef, order=>'owner'),
2931                                       -class => "header"}, "Owner") .
2932                              "</th>\n";
2933                }
2934                if ($order eq "age") {
2935                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2936                        print "<th>Last Change</th>\n";
2937                } else {
2938                        print "<th>" .
2939                              $cgi->a({-href => href(project=>undef, order=>'age'),
2940                                       -class => "header"}, "Last Change") .
2941                              "</th>\n";
2942                }
2943                print "<th></th>\n" .
2944                      "</tr>\n";
2945        }
2946        my $alternate = 1;
2947        for (my $i = $from; $i <= $to; $i++) {
2948                my $pr = $projects[$i];
2949                if ($alternate) {
2950                        print "<tr class=\"dark\">\n";
2951                } else {
2952                        print "<tr class=\"light\">\n";
2953                }
2954                $alternate ^= 1;
2955                if ($check_forks) {
2956                        print "<td>";
2957                        if ($pr->{'forks'}) {
2958                                print "<!-- $pr->{'forks'} -->\n";
2959                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2960                        }
2961                        print "</td>\n";
2962                }
2963                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2964                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2965                      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2966                                        -class => "list", -title => $pr->{'descr_long'}},
2967                                        esc_html($pr->{'descr'})) . "</td>\n" .
2968                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2969                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2970                      $pr->{'age_string'} . "</td>\n" .
2971                      "<td class=\"link\">" .
2972                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2973                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2974                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2975                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2976                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
2977                      "</td>\n" .
2978                      "</tr>\n";
2979        }
2980        if (defined $extra) {
2981                print "<tr>\n";
2982                if ($check_forks) {
2983                        print "<td></td>\n";
2984                }
2985                print "<td colspan=\"5\">$extra</td>\n" .
2986                      "</tr>\n";
2987        }
2988        print "</table>\n";
2989}
2990
2991sub git_shortlog_body {
2992        # uses global variable $project
2993        my ($commitlist, $from, $to, $refs, $extra) = @_;
2994
2995        my $have_snapshot = gitweb_have_snapshot();
2996
2997        $from = 0 unless defined $from;
2998        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
2999
3000        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
3001        my $alternate = 1;
3002        for (my $i = $from; $i <= $to; $i++) {
3003                my %co = %{$commitlist->[$i]};
3004                my $commit = $co{'id'};
3005                my $ref = format_ref_marker($refs, $commit);
3006                if ($alternate) {
3007                        print "<tr class=\"dark\">\n";
3008                } else {
3009                        print "<tr class=\"light\">\n";
3010                }
3011                $alternate ^= 1;
3012                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
3013                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3014                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
3015                      "<td>";
3016                print format_subject_html($co{'title'}, $co{'title_short'},
3017                                          href(action=>"commit", hash=>$commit), $ref);
3018                print "</td>\n" .
3019                      "<td class=\"link\">" .
3020                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
3021                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
3022                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
3023                if ($have_snapshot) {
3024                        print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
3025                }
3026                print "</td>\n" .
3027                      "</tr>\n";
3028        }
3029        if (defined $extra) {
3030                print "<tr>\n" .
3031                      "<td colspan=\"4\">$extra</td>\n" .
3032                      "</tr>\n";
3033        }
3034        print "</table>\n";
3035}
3036
3037sub git_history_body {
3038        # Warning: assumes constant type (blob or tree) during history
3039        my ($commitlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
3040
3041        $from = 0 unless defined $from;
3042        $to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
3043
3044        print "<table class=\"history\" cellspacing=\"0\">\n";
3045        my $alternate = 1;
3046        for (my $i = $from; $i <= $to; $i++) {
3047                my %co = %{$commitlist->[$i]};
3048                if (!%co) {
3049                        next;
3050                }
3051                my $commit = $co{'id'};
3052
3053                my $ref = format_ref_marker($refs, $commit);
3054
3055                if ($alternate) {
3056                        print "<tr class=\"dark\">\n";
3057                } else {
3058                        print "<tr class=\"light\">\n";
3059                }
3060                $alternate ^= 1;
3061                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3062                      # shortlog uses      chop_str($co{'author_name'}, 10)
3063                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
3064                      "<td>";
3065                # originally git_history used chop_str($co{'title'}, 50)
3066                print format_subject_html($co{'title'}, $co{'title_short'},
3067                                          href(action=>"commit", hash=>$commit), $ref);
3068                print "</td>\n" .
3069                      "<td class=\"link\">" .
3070                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
3071                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
3072
3073                if ($ftype eq 'blob') {
3074                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
3075                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
3076                        if (defined $blob_current && defined $blob_parent &&
3077                                        $blob_current ne $blob_parent) {
3078                                print " | " .
3079                                        $cgi->a({-href => href(action=>"blobdiff",
3080                                                               hash=>$blob_current, hash_parent=>$blob_parent,
3081                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
3082                                                               file_name=>$file_name)},
3083                                                "diff to current");
3084                        }
3085                }
3086                print "</td>\n" .
3087                      "</tr>\n";
3088        }
3089        if (defined $extra) {
3090                print "<tr>\n" .
3091                      "<td colspan=\"4\">$extra</td>\n" .
3092                      "</tr>\n";
3093        }
3094        print "</table>\n";
3095}
3096
3097sub git_tags_body {
3098        # uses global variable $project
3099        my ($taglist, $from, $to, $extra) = @_;
3100        $from = 0 unless defined $from;
3101        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
3102
3103        print "<table class=\"tags\" cellspacing=\"0\">\n";
3104        my $alternate = 1;
3105        for (my $i = $from; $i <= $to; $i++) {
3106                my $entry = $taglist->[$i];
3107                my %tag = %$entry;
3108                my $comment = $tag{'subject'};
3109                my $comment_short;
3110                if (defined $comment) {
3111                        $comment_short = chop_str($comment, 30, 5);
3112                }
3113                if ($alternate) {
3114                        print "<tr class=\"dark\">\n";
3115                } else {
3116                        print "<tr class=\"light\">\n";
3117                }
3118                $alternate ^= 1;
3119                if (defined $tag{'age'}) {
3120                        print "<td><i>$tag{'age'}</i></td>\n";
3121                } else {
3122                        print "<td></td>\n";
3123                }
3124                print "<td>" .
3125                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
3126                               -class => "list name"}, esc_html($tag{'name'})) .
3127                      "</td>\n" .
3128                      "<td>";
3129                if (defined $comment) {
3130                        print format_subject_html($comment, $comment_short,
3131                                                  href(action=>"tag", hash=>$tag{'id'}));
3132                }
3133                print "</td>\n" .
3134                      "<td class=\"selflink\">";
3135                if ($tag{'type'} eq "tag") {
3136                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
3137                } else {
3138                        print "&nbsp;";
3139                }
3140                print "</td>\n" .
3141                      "<td class=\"link\">" . " | " .
3142                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
3143                if ($tag{'reftype'} eq "commit") {
3144                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
3145                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
3146                } elsif ($tag{'reftype'} eq "blob") {
3147                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
3148                }
3149                print "</td>\n" .
3150                      "</tr>";
3151        }
3152        if (defined $extra) {
3153                print "<tr>\n" .
3154                      "<td colspan=\"5\">$extra</td>\n" .
3155                      "</tr>\n";
3156        }
3157        print "</table>\n";
3158}
3159
3160sub git_heads_body {
3161        # uses global variable $project
3162        my ($headlist, $head, $from, $to, $extra) = @_;
3163        $from = 0 unless defined $from;
3164        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
3165
3166        print "<table class=\"heads\" cellspacing=\"0\">\n";
3167        my $alternate = 1;
3168        for (my $i = $from; $i <= $to; $i++) {
3169                my $entry = $headlist->[$i];
3170                my %ref = %$entry;
3171                my $curr = $ref{'id'} eq $head;
3172                if ($alternate) {
3173                        print "<tr class=\"dark\">\n";
3174                } else {
3175                        print "<tr class=\"light\">\n";
3176                }
3177                $alternate ^= 1;
3178                print "<td><i>$ref{'age'}</i></td>\n" .
3179                      ($curr ? "<td class=\"current_head\">" : "<td>") .
3180                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
3181                               -class => "list name"},esc_html($ref{'name'})) .
3182                      "</td>\n" .
3183                      "<td class=\"link\">" .
3184                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
3185                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
3186                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
3187                      "</td>\n" .
3188                      "</tr>";
3189        }
3190        if (defined $extra) {
3191                print "<tr>\n" .
3192                      "<td colspan=\"3\">$extra</td>\n" .
3193                      "</tr>\n";
3194        }
3195        print "</table>\n";
3196}
3197
3198sub git_search_grep_body {
3199        my ($commitlist, $from, $to, $extra) = @_;
3200        $from = 0 unless defined $from;
3201        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
3202
3203        print "<table class=\"grep\" cellspacing=\"0\">\n";
3204        my $alternate = 1;
3205        for (my $i = $from; $i <= $to; $i++) {
3206                my %co = %{$commitlist->[$i]};
3207                if (!%co) {
3208                        next;
3209                }
3210                my $commit = $co{'id'};
3211                if ($alternate) {
3212                        print "<tr class=\"dark\">\n";
3213                } else {
3214                        print "<tr class=\"light\">\n";
3215                }
3216                $alternate ^= 1;
3217                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3218                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3219                      "<td>" .
3220                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3221                               esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3222                my $comment = $co{'comment'};
3223                foreach my $line (@$comment) {
3224                        if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3225                                my $lead = esc_html($1) || "";
3226                                $lead = chop_str($lead, 30, 10);
3227                                my $match = esc_html($2) || "";
3228                                my $trail = esc_html($3) || "";
3229                                $trail = chop_str($trail, 30, 10);
3230                                my $text = "$lead<span class=\"match\">$match</span>$trail";
3231                                print chop_str($text, 80, 5) . "<br/>\n";
3232                        }
3233                }
3234                print "</td>\n" .
3235                      "<td class=\"link\">" .
3236                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3237                      " | " .
3238                      $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3239                print "</td>\n" .
3240                      "</tr>\n";
3241        }
3242        if (defined $extra) {
3243                print "<tr>\n" .
3244                      "<td colspan=\"3\">$extra</td>\n" .
3245                      "</tr>\n";
3246        }
3247        print "</table>\n";
3248}
3249
3250## ======================================================================
3251## ======================================================================
3252## actions
3253
3254sub git_project_list {
3255        my $order = $cgi->param('o');
3256        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3257                die_error(undef, "Unknown order parameter");
3258        }
3259
3260        my @list = git_get_projects_list();
3261        if (!@list) {
3262                die_error(undef, "No projects found");
3263        }
3264
3265        git_header_html();
3266        if (-f $home_text) {
3267                print "<div class=\"index_include\">\n";
3268                open (my $fd, $home_text);
3269                print <$fd>;
3270                close $fd;
3271                print "</div>\n";
3272        }
3273        git_project_list_body(\@list, $order);
3274        git_footer_html();
3275}
3276
3277sub git_forks {
3278        my $order = $cgi->param('o');
3279        if (defined $order && $order !~ m/none|project|descr|owner|age/) {
3280                die_error(undef, "Unknown order parameter");
3281        }
3282
3283        my @list = git_get_projects_list($project);
3284        if (!@list) {
3285                die_error(undef, "No forks found");
3286        }
3287
3288        git_header_html();
3289        git_print_page_nav('','');
3290        git_print_header_div('summary', "$project forks");
3291        git_project_list_body(\@list, $order);
3292        git_footer_html();
3293}
3294
3295sub git_project_index {
3296        my @projects = git_get_projects_list($project);
3297
3298        print $cgi->header(
3299                -type => 'text/plain',
3300                -charset => 'utf-8',
3301                -content_disposition => 'inline; filename="index.aux"');
3302
3303        foreach my $pr (@projects) {
3304                if (!exists $pr->{'owner'}) {
3305                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}");
3306                }
3307
3308                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
3309                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
3310                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3311                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3312                $path  =~ s/ /\+/g;
3313                $owner =~ s/ /\+/g;
3314
3315                print "$path $owner\n";
3316        }
3317}
3318
3319sub git_summary {
3320        my $descr = git_get_project_description($project) || "none";
3321        my %co = parse_commit("HEAD");
3322        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3323        my $head = $co{'id'};
3324
3325        my $owner = git_get_project_owner($project);
3326
3327        my $refs = git_get_references();
3328        # These get_*_list functions return one more to allow us to see if
3329        # there are more ...
3330        my @taglist  = git_get_tags_list(16);
3331        my @headlist = git_get_heads_list(16);
3332        my @forklist;
3333        my ($check_forks) = gitweb_check_feature('forks');
3334
3335        if ($check_forks) {
3336                @forklist = git_get_projects_list($project);
3337        }
3338
3339        git_header_html();
3340        git_print_page_nav('summary','', $head);
3341
3342        print "<div class=\"title\">&nbsp;</div>\n";
3343        print "<table cellspacing=\"0\">\n" .
3344              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
3345              "<tr><td>owner</td><td>$owner</td></tr>\n" .
3346              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
3347        # use per project git URL list in $projectroot/$project/cloneurl
3348        # or make project git URL from git base URL and project name
3349        my $url_tag = "URL";
3350        my @url_list = git_get_project_url_list($project);
3351        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
3352        foreach my $git_url (@url_list) {
3353                next unless $git_url;
3354                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
3355                $url_tag = "";
3356        }
3357        print "</table>\n";
3358
3359        if (-s "$projectroot/$project/README.html") {
3360                if (open my $fd, "$projectroot/$project/README.html") {
3361                        print "<div class=\"title\">readme</div>\n";
3362                        print $_ while (<$fd>);
3363                        close $fd;
3364                }
3365        }
3366
3367        # we need to request one more than 16 (0..15) to check if
3368        # those 16 are all
3369        my @commitlist = parse_commits($head, 17);
3370        git_print_header_div('shortlog');
3371        git_shortlog_body(\@commitlist, 0, 15, $refs,
3372                          $#commitlist <=  15 ? undef :
3373                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
3374
3375        if (@taglist) {
3376                git_print_header_div('tags');
3377                git_tags_body(\@taglist, 0, 15,
3378                              $#taglist <=  15 ? undef :
3379                              $cgi->a({-href => href(action=>"tags")}, "..."));
3380        }
3381
3382        if (@headlist) {
3383                git_print_header_div('heads');
3384                git_heads_body(\@headlist, $head, 0, 15,
3385                               $#headlist <= 15 ? undef :
3386                               $cgi->a({-href => href(action=>"heads")}, "..."));
3387        }
3388
3389        if (@forklist) {
3390                git_print_header_div('forks');
3391                git_project_list_body(\@forklist, undef, 0, 15,
3392                                      $#forklist <= 15 ? undef :
3393                                      $cgi->a({-href => href(action=>"forks")}, "..."),
3394                                      'noheader');
3395        }
3396
3397        git_footer_html();
3398}
3399
3400sub git_tag {
3401        my $head = git_get_head_hash($project);
3402        git_header_html();
3403        git_print_page_nav('','', $head,undef,$head);
3404        my %tag = parse_tag($hash);
3405        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
3406        print "<div class=\"title_text\">\n" .
3407              "<table cellspacing=\"0\">\n" .
3408              "<tr>\n" .
3409              "<td>object</td>\n" .
3410              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3411                               $tag{'object'}) . "</td>\n" .
3412              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3413                                              $tag{'type'}) . "</td>\n" .
3414              "</tr>\n";
3415        if (defined($tag{'author'})) {
3416                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
3417                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
3418                print "<tr><td></td><td>" . $ad{'rfc2822'} .
3419                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
3420                        "</td></tr>\n";
3421        }
3422        print "</table>\n\n" .
3423              "</div>\n";
3424        print "<div class=\"page_body\">";
3425        my $comment = $tag{'comment'};
3426        foreach my $line (@$comment) {
3427                chomp $line;
3428                print esc_html($line, -nbsp=>1) . "<br/>\n";
3429        }
3430        print "</div>\n";
3431        git_footer_html();
3432}
3433
3434sub git_blame2 {
3435        my $fd;
3436        my $ftype;
3437
3438        my ($have_blame) = gitweb_check_feature('blame');
3439        if (!$have_blame) {
3440                die_error('403 Permission denied', "Permission denied");
3441        }
3442        die_error('404 Not Found', "File name not defined") if (!$file_name);
3443        $hash_base ||= git_get_head_hash($project);
3444        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3445        my %co = parse_commit($hash_base)
3446                or die_error(undef, "Reading commit failed");
3447        if (!defined $hash) {
3448                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3449                        or die_error(undef, "Error looking up file");
3450        }
3451        $ftype = git_get_type($hash);
3452        if ($ftype !~ "blob") {
3453                die_error('400 Bad Request', "Object is not a blob");
3454        }
3455        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
3456              $file_name, $hash_base)
3457                or die_error(undef, "Open git-blame failed");
3458        git_header_html();
3459        my $formats_nav =
3460                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3461                        "blob") .
3462                " | " .
3463                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3464                        "history") .
3465                " | " .
3466                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3467                        "HEAD");
3468        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3469        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3470        git_print_page_path($file_name, $ftype, $hash_base);
3471        my @rev_color = (qw(light2 dark2));
3472        my $num_colors = scalar(@rev_color);
3473        my $current_color = 0;
3474        my $last_rev;
3475        print <<HTML;
3476<div class="page_body">
3477<table class="blame">
3478<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
3479HTML
3480        my %metainfo = ();
3481        while (1) {
3482                $_ = <$fd>;
3483                last unless defined $_;
3484                my ($full_rev, $orig_lineno, $lineno, $group_size) =
3485                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
3486                if (!exists $metainfo{$full_rev}) {
3487                        $metainfo{$full_rev} = {};
3488                }
3489                my $meta = $metainfo{$full_rev};
3490                while (<$fd>) {
3491                        last if (s/^\t//);
3492                        if (/^(\S+) (.*)$/) {
3493                                $meta->{$1} = $2;
3494                        }
3495                }
3496                my $data = $_;
3497                chomp $data;
3498                my $rev = substr($full_rev, 0, 8);
3499                my $author = $meta->{'author'};
3500                my %date = parse_date($meta->{'author-time'},
3501                                      $meta->{'author-tz'});
3502                my $date = $date{'iso-tz'};
3503                if ($group_size) {
3504                        $current_color = ++$current_color % $num_colors;
3505                }
3506                print "<tr class=\"$rev_color[$current_color]\">\n";
3507                if ($group_size) {
3508                        print "<td class=\"sha1\"";
3509                        print " title=\"". esc_html($author) . ", $date\"";
3510                        print " rowspan=\"$group_size\"" if ($group_size > 1);
3511                        print ">";
3512                        print $cgi->a({-href => href(action=>"commit",
3513                                                     hash=>$full_rev,
3514                                                     file_name=>$file_name)},
3515                                      esc_html($rev));
3516                        print "</td>\n";
3517                }
3518                open (my $dd, "-|", git_cmd(), "rev-parse", "$full_rev^")
3519                        or die_error(undef, "Open git-rev-parse failed");
3520                my $parent_commit = <$dd>;
3521                close $dd;
3522                chomp($parent_commit);
3523                my $blamed = href(action => 'blame',
3524                                  file_name => $meta->{'filename'},
3525                                  hash_base => $parent_commit);
3526                print "<td class=\"linenr\">";
3527                print $cgi->a({ -href => "$blamed#l$orig_lineno",
3528                                -id => "l$lineno",
3529                                -class => "linenr" },
3530                              esc_html($lineno));
3531                print "</td>";
3532                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
3533                print "</tr>\n";
3534        }
3535        print "</table>\n";
3536        print "</div>";
3537        close $fd
3538                or print "Reading blob failed\n";
3539        git_footer_html();
3540}
3541
3542sub git_blame {
3543        my $fd;
3544
3545        my ($have_blame) = gitweb_check_feature('blame');
3546        if (!$have_blame) {
3547                die_error('403 Permission denied', "Permission denied");
3548        }
3549        die_error('404 Not Found', "File name not defined") if (!$file_name);
3550        $hash_base ||= git_get_head_hash($project);
3551        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3552        my %co = parse_commit($hash_base)
3553                or die_error(undef, "Reading commit failed");
3554        if (!defined $hash) {
3555                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3556                        or die_error(undef, "Error lookup file");
3557        }
3558        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
3559                or die_error(undef, "Open git-annotate failed");
3560        git_header_html();
3561        my $formats_nav =
3562                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3563                        "blob") .
3564                " | " .
3565                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3566                        "history") .
3567                " | " .
3568                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3569                        "HEAD");
3570        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3571        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3572        git_print_page_path($file_name, 'blob', $hash_base);
3573        print "<div class=\"page_body\">\n";
3574        print <<HTML;
3575<table class="blame">
3576  <tr>
3577    <th>Commit</th>
3578    <th>Age</th>
3579    <th>Author</th>
3580    <th>Line</th>
3581    <th>Data</th>
3582  </tr>
3583HTML
3584        my @line_class = (qw(light dark));
3585        my $line_class_len = scalar (@line_class);
3586        my $line_class_num = $#line_class;
3587        while (my $line = <$fd>) {
3588                my $long_rev;
3589                my $short_rev;
3590                my $author;
3591                my $time;
3592                my $lineno;
3593                my $data;
3594                my $age;
3595                my $age_str;
3596                my $age_class;
3597
3598                chomp $line;
3599                $line_class_num = ($line_class_num + 1) % $line_class_len;
3600
3601                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
3602                        $long_rev = $1;
3603                        $author   = $2;
3604                        $time     = $3;
3605                        $lineno   = $4;
3606                        $data     = $5;
3607                } else {
3608                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
3609                        next;
3610                }
3611                $short_rev  = substr ($long_rev, 0, 8);
3612                $age        = time () - $time;
3613                $age_str    = age_string ($age);
3614                $age_str    =~ s/ /&nbsp;/g;
3615                $age_class  = age_class($age);
3616                $author     = esc_html ($author);
3617                $author     =~ s/ /&nbsp;/g;
3618
3619                $data = untabify($data);
3620                $data = esc_html ($data);
3621
3622                print <<HTML;
3623  <tr class="$line_class[$line_class_num]">
3624    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
3625    <td class="$age_class">$age_str</td>
3626    <td>$author</td>
3627    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
3628    <td class="pre">$data</td>
3629  </tr>
3630HTML
3631        } # while (my $line = <$fd>)
3632        print "</table>\n\n";
3633        close $fd
3634                or print "Reading blob failed.\n";
3635        print "</div>";
3636        git_footer_html();
3637}
3638
3639sub git_tags {
3640        my $head = git_get_head_hash($project);
3641        git_header_html();
3642        git_print_page_nav('','', $head,undef,$head);
3643        git_print_header_div('summary', $project);
3644
3645        my @tagslist = git_get_tags_list();
3646        if (@tagslist) {
3647                git_tags_body(\@tagslist);
3648        }
3649        git_footer_html();
3650}
3651
3652sub git_heads {
3653        my $head = git_get_head_hash($project);
3654        git_header_html();
3655        git_print_page_nav('','', $head,undef,$head);
3656        git_print_header_div('summary', $project);
3657
3658        my @headslist = git_get_heads_list();
3659        if (@headslist) {
3660                git_heads_body(\@headslist, $head);
3661        }
3662        git_footer_html();
3663}
3664
3665sub git_blob_plain {
3666        my $expires;
3667
3668        if (!defined $hash) {
3669                if (defined $file_name) {
3670                        my $base = $hash_base || git_get_head_hash($project);
3671                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3672                                or die_error(undef, "Error lookup file");
3673                } else {
3674                        die_error(undef, "No file name defined");
3675                }
3676        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3677                # blobs defined by non-textual hash id's can be cached
3678                $expires = "+1d";
3679        }
3680
3681        my $type = shift;
3682        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3683                or die_error(undef, "Couldn't cat $file_name, $hash");
3684
3685        $type ||= blob_mimetype($fd, $file_name);
3686
3687        # save as filename, even when no $file_name is given
3688        my $save_as = "$hash";
3689        if (defined $file_name) {
3690                $save_as = $file_name;
3691        } elsif ($type =~ m/^text\//) {
3692                $save_as .= '.txt';
3693        }
3694
3695        print $cgi->header(
3696                -type => "$type",
3697                -expires=>$expires,
3698                -content_disposition => 'inline; filename="' . "$save_as" . '"');
3699        undef $/;
3700        binmode STDOUT, ':raw';
3701        print <$fd>;
3702        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3703        $/ = "\n";
3704        close $fd;
3705}
3706
3707sub git_blob {
3708        my $expires;
3709
3710        if (!defined $hash) {
3711                if (defined $file_name) {
3712                        my $base = $hash_base || git_get_head_hash($project);
3713                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3714                                or die_error(undef, "Error lookup file");
3715                } else {
3716                        die_error(undef, "No file name defined");
3717                }
3718        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3719                # blobs defined by non-textual hash id's can be cached
3720                $expires = "+1d";
3721        }
3722
3723        my ($have_blame) = gitweb_check_feature('blame');
3724        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3725                or die_error(undef, "Couldn't cat $file_name, $hash");
3726        my $mimetype = blob_mimetype($fd, $file_name);
3727        if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)!) {
3728                close $fd;
3729                return git_blob_plain($mimetype);
3730        }
3731        # we can have blame only for text/* mimetype
3732        $have_blame &&= ($mimetype =~ m!^text/!);
3733
3734        git_header_html(undef, $expires);
3735        my $formats_nav = '';
3736        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3737                if (defined $file_name) {
3738                        if ($have_blame) {
3739                                $formats_nav .=
3740                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3741                                                               hash=>$hash, file_name=>$file_name)},
3742                                                "blame") .
3743                                        " | ";
3744                        }
3745                        $formats_nav .=
3746                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3747                                                       hash=>$hash, file_name=>$file_name)},
3748                                        "history") .
3749                                " | " .
3750                                $cgi->a({-href => href(action=>"blob_plain",
3751                                                       hash=>$hash, file_name=>$file_name)},
3752                                        "raw") .
3753                                " | " .
3754                                $cgi->a({-href => href(action=>"blob",
3755                                                       hash_base=>"HEAD", file_name=>$file_name)},
3756                                        "HEAD");
3757                } else {
3758                        $formats_nav .=
3759                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3760                }
3761                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3762                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3763        } else {
3764                print "<div class=\"page_nav\">\n" .
3765                      "<br/><br/></div>\n" .
3766                      "<div class=\"title\">$hash</div>\n";
3767        }
3768        git_print_page_path($file_name, "blob", $hash_base);
3769        print "<div class=\"page_body\">\n";
3770        if ($mimetype =~ m!^text/!) {
3771                my $nr;
3772                while (my $line = <$fd>) {
3773                        chomp $line;
3774                        $nr++;
3775                        $line = untabify($line);
3776                        printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3777                               $nr, $nr, $nr, esc_html($line, -nbsp=>1);
3778                }
3779        } elsif ($mimetype =~ m!^image/!) {
3780                print qq!<img type="$mimetype"!;
3781                if ($file_name) {
3782                        print qq! alt="$file_name" title="$file_name"!;
3783                }
3784                print qq! src="! .
3785                      href(action=>"blob_plain", hash=>$hash,
3786                           hash_base=>$hash_base, file_name=>$file_name) .
3787                      qq!" />\n!;
3788        }
3789        close $fd
3790                or print "Reading blob failed.\n";
3791        print "</div>";
3792        git_footer_html();
3793}
3794
3795sub git_tree {
3796        my $have_snapshot = gitweb_have_snapshot();
3797
3798        if (!defined $hash_base) {
3799                $hash_base = "HEAD";
3800        }
3801        if (!defined $hash) {
3802                if (defined $file_name) {
3803                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3804                } else {
3805                        $hash = $hash_base;
3806                }
3807        }
3808        $/ = "\0";
3809        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3810                or die_error(undef, "Open git-ls-tree failed");
3811        my @entries = map { chomp; $_ } <$fd>;
3812        close $fd or die_error(undef, "Reading tree failed");
3813        $/ = "\n";
3814
3815        my $refs = git_get_references();
3816        my $ref = format_ref_marker($refs, $hash_base);
3817        git_header_html();
3818        my $basedir = '';
3819        my ($have_blame) = gitweb_check_feature('blame');
3820        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3821                my @views_nav = ();
3822                if (defined $file_name) {
3823                        push @views_nav,
3824                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3825                                                       hash=>$hash, file_name=>$file_name)},
3826                                        "history"),
3827                                $cgi->a({-href => href(action=>"tree",
3828                                                       hash_base=>"HEAD", file_name=>$file_name)},
3829                                        "HEAD"),
3830                }
3831                if ($have_snapshot) {
3832                        # FIXME: Should be available when we have no hash base as well.
3833                        push @views_nav,
3834                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3835                                        "snapshot");
3836                }
3837                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3838                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3839        } else {
3840                undef $hash_base;
3841                print "<div class=\"page_nav\">\n";
3842                print "<br/><br/></div>\n";
3843                print "<div class=\"title\">$hash</div>\n";
3844        }
3845        if (defined $file_name) {
3846                $basedir = $file_name;
3847                if ($basedir ne '' && substr($basedir, -1) ne '/') {
3848                        $basedir .= '/';
3849                }
3850        }
3851        git_print_page_path($file_name, 'tree', $hash_base);
3852        print "<div class=\"page_body\">\n";
3853        print "<table cellspacing=\"0\">\n";
3854        my $alternate = 1;
3855        # '..' (top directory) link if possible
3856        if (defined $hash_base &&
3857            defined $file_name && $file_name =~ m![^/]+$!) {
3858                if ($alternate) {
3859                        print "<tr class=\"dark\">\n";
3860                } else {
3861                        print "<tr class=\"light\">\n";
3862                }
3863                $alternate ^= 1;
3864
3865                my $up = $file_name;
3866                $up =~ s!/?[^/]+$!!;
3867                undef $up unless $up;
3868                # based on git_print_tree_entry
3869                print '<td class="mode">' . mode_str('040000') . "</td>\n";
3870                print '<td class="list">';
3871                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3872                                             file_name=>$up)},
3873                              "..");
3874                print "</td>\n";
3875                print "<td class=\"link\"></td>\n";
3876
3877                print "</tr>\n";
3878        }
3879        foreach my $line (@entries) {
3880                my %t = parse_ls_tree_line($line, -z => 1);
3881
3882                if ($alternate) {
3883                        print "<tr class=\"dark\">\n";
3884                } else {
3885                        print "<tr class=\"light\">\n";
3886                }
3887                $alternate ^= 1;
3888
3889                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3890
3891                print "</tr>\n";
3892        }
3893        print "</table>\n" .
3894              "</div>";
3895        git_footer_html();
3896}
3897
3898sub git_snapshot {
3899        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3900        my $have_snapshot = (defined $ctype && defined $suffix);
3901        if (!$have_snapshot) {
3902                die_error('403 Permission denied', "Permission denied");
3903        }
3904
3905        if (!defined $hash) {
3906                $hash = git_get_head_hash($project);
3907        }
3908
3909        my $filename = decode_utf8(basename($project)) . "-$hash.tar.$suffix";
3910
3911        print $cgi->header(
3912                -type => "application/$ctype",
3913                -content_disposition => 'inline; filename="' . "$filename" . '"',
3914                -status => '200 OK');
3915
3916        my $git = git_cmd_str();
3917        my $name = $project;
3918        $name =~ s/\047/\047\\\047\047/g;
3919        open my $fd, "-|",
3920                "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3921                or die_error(undef, "Execute git-tar-tree failed");
3922        binmode STDOUT, ':raw';
3923        print <$fd>;
3924        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3925        close $fd;
3926
3927}
3928
3929sub git_log {
3930        my $head = git_get_head_hash($project);
3931        if (!defined $hash) {
3932                $hash = $head;
3933        }
3934        if (!defined $page) {
3935                $page = 0;
3936        }
3937        my $refs = git_get_references();
3938
3939        my @commitlist = parse_commits($hash, 101, (100 * $page));
3940
3941        my $paging_nav = format_paging_nav('log', $hash, $head, $page, (100 * ($page+1)));
3942
3943        git_header_html();
3944        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3945
3946        if (!@commitlist) {
3947                my %co = parse_commit($hash);
3948
3949                git_print_header_div('summary', $project);
3950                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3951        }
3952        my $to = ($#commitlist >= 99) ? (99) : ($#commitlist);
3953        for (my $i = 0; $i <= $to; $i++) {
3954                my %co = %{$commitlist[$i]};
3955                next if !%co;
3956                my $commit = $co{'id'};
3957                my $ref = format_ref_marker($refs, $commit);
3958                my %ad = parse_date($co{'author_epoch'});
3959                git_print_header_div('commit',
3960                               "<span class=\"age\">$co{'age_string'}</span>" .
3961                               esc_html($co{'title'}) . $ref,
3962                               $commit);
3963                print "<div class=\"title_text\">\n" .
3964                      "<div class=\"log_link\">\n" .
3965                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3966                      " | " .
3967                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3968                      " | " .
3969                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3970                      "<br/>\n" .
3971                      "</div>\n" .
3972                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3973                      "</div>\n";
3974
3975                print "<div class=\"log_body\">\n";
3976                git_print_log($co{'comment'}, -final_empty_line=> 1);
3977                print "</div>\n";
3978        }
3979        if ($#commitlist >= 100) {
3980                print "<div class=\"page_nav\">\n";
3981                print $cgi->a({-href => href(action=>"log", hash=>$hash, page=>$page+1),
3982                               -accesskey => "n", -title => "Alt-n"}, "next");
3983                print "</div>\n";
3984        }
3985        git_footer_html();
3986}
3987
3988sub git_commit {
3989        $hash ||= $hash_base || "HEAD";
3990        my %co = parse_commit($hash);
3991        if (!%co) {
3992                die_error(undef, "Unknown commit object");
3993        }
3994        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3995        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3996
3997        my $parent  = $co{'parent'};
3998        my $parents = $co{'parents'}; # listref
3999
4000        # we need to prepare $formats_nav before any parameter munging
4001        my $formats_nav;
4002        if (!defined $parent) {
4003                # --root commitdiff
4004                $formats_nav .= '(initial)';
4005        } elsif (@$parents == 1) {
4006                # single parent commit
4007                $formats_nav .=
4008                        '(parent: ' .
4009                        $cgi->a({-href => href(action=>"commit",
4010                                               hash=>$parent)},
4011                                esc_html(substr($parent, 0, 7))) .
4012                        ')';
4013        } else {
4014                # merge commit
4015                $formats_nav .=
4016                        '(merge: ' .
4017                        join(' ', map {
4018                                $cgi->a({-href => href(action=>"commit",
4019                                                       hash=>$_)},
4020                                        esc_html(substr($_, 0, 7)));
4021                        } @$parents ) .
4022                        ')';
4023        }
4024
4025        if (!defined $parent) {
4026                $parent = "--root";
4027        }
4028        my @difftree;
4029        open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
4030                @diff_opts,
4031                (@$parents <= 1 ? $parent : '-c'),
4032                $hash, "--"
4033                or die_error(undef, "Open git-diff-tree failed");
4034        @difftree = map { chomp; $_ } <$fd>;
4035        close $fd or die_error(undef, "Reading git-diff-tree failed");
4036
4037        # non-textual hash id's can be cached
4038        my $expires;
4039        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4040                $expires = "+1d";
4041        }
4042        my $refs = git_get_references();
4043        my $ref = format_ref_marker($refs, $co{'id'});
4044
4045        my $have_snapshot = gitweb_have_snapshot();
4046
4047        git_header_html(undef, $expires);
4048        git_print_page_nav('commit', '',
4049                           $hash, $co{'tree'}, $hash,
4050                           $formats_nav);
4051
4052        if (defined $co{'parent'}) {
4053                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
4054        } else {
4055                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
4056        }
4057        print "<div class=\"title_text\">\n" .
4058              "<table cellspacing=\"0\">\n";
4059        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
4060              "<tr>" .
4061              "<td></td><td> $ad{'rfc2822'}";
4062        if ($ad{'hour_local'} < 6) {
4063                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
4064                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4065        } else {
4066                printf(" (%02d:%02d %s)",
4067                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
4068        }
4069        print "</td>" .
4070              "</tr>\n";
4071        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
4072        print "<tr><td></td><td> $cd{'rfc2822'}" .
4073              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
4074              "</td></tr>\n";
4075        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
4076        print "<tr>" .
4077              "<td>tree</td>" .
4078              "<td class=\"sha1\">" .
4079              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
4080                       class => "list"}, $co{'tree'}) .
4081              "</td>" .
4082              "<td class=\"link\">" .
4083              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
4084                      "tree");
4085        if ($have_snapshot) {
4086                print " | " .
4087                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
4088        }
4089        print "</td>" .
4090              "</tr>\n";
4091
4092        foreach my $par (@$parents) {
4093                print "<tr>" .
4094                      "<td>parent</td>" .
4095                      "<td class=\"sha1\">" .
4096                      $cgi->a({-href => href(action=>"commit", hash=>$par),
4097                               class => "list"}, $par) .
4098                      "</td>" .
4099                      "<td class=\"link\">" .
4100                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
4101                      " | " .
4102                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
4103                      "</td>" .
4104                      "</tr>\n";
4105        }
4106        print "</table>".
4107              "</div>\n";
4108
4109        print "<div class=\"page_body\">\n";
4110        git_print_log($co{'comment'});
4111        print "</div>\n";
4112
4113        git_difftree_body(\@difftree, $hash, @$parents);
4114
4115        git_footer_html();
4116}
4117
4118sub git_object {
4119        # object is defined by:
4120        # - hash or hash_base alone
4121        # - hash_base and file_name
4122        my $type;
4123
4124        # - hash or hash_base alone
4125        if ($hash || ($hash_base && !defined $file_name)) {
4126                my $object_id = $hash || $hash_base;
4127
4128                my $git_command = git_cmd_str();
4129                open my $fd, "-|", "$git_command cat-file -t $object_id 2>/dev/null"
4130                        or die_error('404 Not Found', "Object does not exist");
4131                $type = <$fd>;
4132                chomp $type;
4133                close $fd
4134                        or die_error('404 Not Found', "Object does not exist");
4135
4136        # - hash_base and file_name
4137        } elsif ($hash_base && defined $file_name) {
4138                $file_name =~ s,/+$,,;
4139
4140                system(git_cmd(), "cat-file", '-e', $hash_base) == 0
4141                        or die_error('404 Not Found', "Base object does not exist");
4142
4143                # here errors should not hapen
4144                open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
4145                        or die_error(undef, "Open git-ls-tree failed");
4146                my $line = <$fd>;
4147                close $fd;
4148
4149                #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
4150                unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
4151                        die_error('404 Not Found', "File or directory for given base does not exist");
4152                }
4153                $type = $2;
4154                $hash = $3;
4155        } else {
4156                die_error('404 Not Found', "Not enough information to find object");
4157        }
4158
4159        print $cgi->redirect(-uri => href(action=>$type, -full=>1,
4160                                          hash=>$hash, hash_base=>$hash_base,
4161                                          file_name=>$file_name),
4162                             -status => '302 Found');
4163}
4164
4165sub git_blobdiff {
4166        my $format = shift || 'html';
4167
4168        my $fd;
4169        my @difftree;
4170        my %diffinfo;
4171        my $expires;
4172
4173        # preparing $fd and %diffinfo for git_patchset_body
4174        # new style URI
4175        if (defined $hash_base && defined $hash_parent_base) {
4176                if (defined $file_name) {
4177                        # read raw output
4178                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4179                                $hash_parent_base, $hash_base,
4180                                "--", (defined $file_parent ? $file_parent : ()), $file_name
4181                                or die_error(undef, "Open git-diff-tree failed");
4182                        @difftree = map { chomp; $_ } <$fd>;
4183                        close $fd
4184                                or die_error(undef, "Reading git-diff-tree failed");
4185                        @difftree
4186                                or die_error('404 Not Found', "Blob diff not found");
4187
4188                } elsif (defined $hash &&
4189                         $hash =~ /[0-9a-fA-F]{40}/) {
4190                        # try to find filename from $hash
4191
4192                        # read filtered raw output
4193                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4194                                $hash_parent_base, $hash_base, "--"
4195                                or die_error(undef, "Open git-diff-tree failed");
4196                        @difftree =
4197                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
4198                                # $hash == to_id
4199                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
4200                                map { chomp; $_ } <$fd>;
4201                        close $fd
4202                                or die_error(undef, "Reading git-diff-tree failed");
4203                        @difftree
4204                                or die_error('404 Not Found', "Blob diff not found");
4205
4206                } else {
4207                        die_error('404 Not Found', "Missing one of the blob diff parameters");
4208                }
4209
4210                if (@difftree > 1) {
4211                        die_error('404 Not Found', "Ambiguous blob diff specification");
4212                }
4213
4214                %diffinfo = parse_difftree_raw_line($difftree[0]);
4215                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
4216                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
4217
4218                $hash_parent ||= $diffinfo{'from_id'};
4219                $hash        ||= $diffinfo{'to_id'};
4220
4221                # non-textual hash id's can be cached
4222                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
4223                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
4224                        $expires = '+1d';
4225                }
4226
4227                # open patch output
4228                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4229                        '-p', ($format eq 'html' ? "--full-index" : ()),
4230                        $hash_parent_base, $hash_base,
4231                        "--", (defined $file_parent ? $file_parent : ()), $file_name
4232                        or die_error(undef, "Open git-diff-tree failed");
4233        }
4234
4235        # old/legacy style URI
4236        if (!%diffinfo && # if new style URI failed
4237            defined $hash && defined $hash_parent) {
4238                # fake git-diff-tree raw output
4239                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
4240                $diffinfo{'from_id'} = $hash_parent;
4241                $diffinfo{'to_id'}   = $hash;
4242                if (defined $file_name) {
4243                        if (defined $file_parent) {
4244                                $diffinfo{'status'} = '2';
4245                                $diffinfo{'from_file'} = $file_parent;
4246                                $diffinfo{'to_file'}   = $file_name;
4247                        } else { # assume not renamed
4248                                $diffinfo{'status'} = '1';
4249                                $diffinfo{'from_file'} = $file_name;
4250                                $diffinfo{'to_file'}   = $file_name;
4251                        }
4252                } else { # no filename given
4253                        $diffinfo{'status'} = '2';
4254                        $diffinfo{'from_file'} = $hash_parent;
4255                        $diffinfo{'to_file'}   = $hash;
4256                }
4257
4258                # non-textual hash id's can be cached
4259                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
4260                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4261                        $expires = '+1d';
4262                }
4263
4264                # open patch output
4265                open $fd, "-|", git_cmd(), "diff", @diff_opts,
4266                        '-p', ($format eq 'html' ? "--full-index" : ()),
4267                        $hash_parent, $hash, "--"
4268                        or die_error(undef, "Open git-diff failed");
4269        } else  {
4270                die_error('404 Not Found', "Missing one of the blob diff parameters")
4271                        unless %diffinfo;
4272        }
4273
4274        # header
4275        if ($format eq 'html') {
4276                my $formats_nav =
4277                        $cgi->a({-href => href(action=>"blobdiff_plain",
4278                                               hash=>$hash, hash_parent=>$hash_parent,
4279                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
4280                                               file_name=>$file_name, file_parent=>$file_parent)},
4281                                "raw");
4282                git_header_html(undef, $expires);
4283                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
4284                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
4285                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4286                } else {
4287                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
4288                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
4289                }
4290                if (defined $file_name) {
4291                        git_print_page_path($file_name, "blob", $hash_base);
4292                } else {
4293                        print "<div class=\"page_path\"></div>\n";
4294                }
4295
4296        } elsif ($format eq 'plain') {
4297                print $cgi->header(
4298                        -type => 'text/plain',
4299                        -charset => 'utf-8',
4300                        -expires => $expires,
4301                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
4302
4303                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4304
4305        } else {
4306                die_error(undef, "Unknown blobdiff format");
4307        }
4308
4309        # patch
4310        if ($format eq 'html') {
4311                print "<div class=\"page_body\">\n";
4312
4313                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
4314                close $fd;
4315
4316                print "</div>\n"; # class="page_body"
4317                git_footer_html();
4318
4319        } else {
4320                while (my $line = <$fd>) {
4321                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
4322                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
4323
4324                        print $line;
4325
4326                        last if $line =~ m!^\+\+\+!;
4327                }
4328                local $/ = undef;
4329                print <$fd>;
4330                close $fd;
4331        }
4332}
4333
4334sub git_blobdiff_plain {
4335        git_blobdiff('plain');
4336}
4337
4338sub git_commitdiff {
4339        my $format = shift || 'html';
4340        $hash ||= $hash_base || "HEAD";
4341        my %co = parse_commit($hash);
4342        if (!%co) {
4343                die_error(undef, "Unknown commit object");
4344        }
4345
4346        # we need to prepare $formats_nav before any parameter munging
4347        my $formats_nav;
4348        if ($format eq 'html') {
4349                $formats_nav =
4350                        $cgi->a({-href => href(action=>"commitdiff_plain",
4351                                               hash=>$hash, hash_parent=>$hash_parent)},
4352                                "raw");
4353
4354                if (defined $hash_parent) {
4355                        # commitdiff with two commits given
4356                        my $hash_parent_short = $hash_parent;
4357                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4358                                $hash_parent_short = substr($hash_parent, 0, 7);
4359                        }
4360                        $formats_nav .=
4361                                ' (from: ' .
4362                                $cgi->a({-href => href(action=>"commitdiff",
4363                                                       hash=>$hash_parent)},
4364                                        esc_html($hash_parent_short)) .
4365                                ')';
4366                } elsif (!$co{'parent'}) {
4367                        # --root commitdiff
4368                        $formats_nav .= ' (initial)';
4369                } elsif (scalar @{$co{'parents'}} == 1) {
4370                        # single parent commit
4371                        $formats_nav .=
4372                                ' (parent: ' .
4373                                $cgi->a({-href => href(action=>"commitdiff",
4374                                                       hash=>$co{'parent'})},
4375                                        esc_html(substr($co{'parent'}, 0, 7))) .
4376                                ')';
4377                } else {
4378                        # merge commit
4379                        $formats_nav .=
4380                                ' (merge: ' .
4381                                join(' ', map {
4382                                        $cgi->a({-href => href(action=>"commitdiff",
4383                                                               hash=>$_)},
4384                                                esc_html(substr($_, 0, 7)));
4385                                } @{$co{'parents'}} ) .
4386                                ')';
4387                }
4388        }
4389
4390        my $hash_parent_param = $hash_parent;
4391        if (!defined $hash_parent) {
4392                $hash_parent_param =
4393                        @{$co{'parents'}} > 1 ? '-c' : $co{'parent'} || '--root';
4394        }
4395
4396        # read commitdiff
4397        my $fd;
4398        my @difftree;
4399        if ($format eq 'html') {
4400                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4401                        "--no-commit-id", "--patch-with-raw", "--full-index",
4402                        $hash_parent_param, $hash, "--"
4403                        or die_error(undef, "Open git-diff-tree failed");
4404
4405                while (my $line = <$fd>) {
4406                        chomp $line;
4407                        # empty line ends raw part of diff-tree output
4408                        last unless $line;
4409                        push @difftree, scalar parse_difftree_raw_line($line);
4410                }
4411
4412        } elsif ($format eq 'plain') {
4413                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4414                        '-p', $hash_parent_param, $hash, "--"
4415                        or die_error(undef, "Open git-diff-tree failed");
4416
4417        } else {
4418                die_error(undef, "Unknown commitdiff format");
4419        }
4420
4421        # non-textual hash id's can be cached
4422        my $expires;
4423        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4424                $expires = "+1d";
4425        }
4426
4427        # write commit message
4428        if ($format eq 'html') {
4429                my $refs = git_get_references();
4430                my $ref = format_ref_marker($refs, $co{'id'});
4431
4432                git_header_html(undef, $expires);
4433                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
4434                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
4435                git_print_authorship(\%co);
4436                print "<div class=\"page_body\">\n";
4437                if (@{$co{'comment'}} > 1) {
4438                        print "<div class=\"log\">\n";
4439                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
4440                        print "</div>\n"; # class="log"
4441                }
4442
4443        } elsif ($format eq 'plain') {
4444                my $refs = git_get_references("tags");
4445                my $tagname = git_get_rev_name_tags($hash);
4446                my $filename = basename($project) . "-$hash.patch";
4447
4448                print $cgi->header(
4449                        -type => 'text/plain',
4450                        -charset => 'utf-8',
4451                        -expires => $expires,
4452                        -content_disposition => 'inline; filename="' . "$filename" . '"');
4453                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4454                print <<TEXT;
4455From: $co{'author'}
4456Date: $ad{'rfc2822'} ($ad{'tz_local'})
4457Subject: $co{'title'}
4458TEXT
4459                print "X-Git-Tag: $tagname\n" if $tagname;
4460                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4461
4462                foreach my $line (@{$co{'comment'}}) {
4463                        print "$line\n";
4464                }
4465                print "---\n\n";
4466        }
4467
4468        # write patch
4469        if ($format eq 'html') {
4470                git_difftree_body(\@difftree, $hash, $hash_parent || @{$co{'parents'}});
4471                print "<br/>\n";
4472
4473                git_patchset_body($fd, \@difftree, $hash, $hash_parent || @{$co{'parents'}});
4474                close $fd;
4475                print "</div>\n"; # class="page_body"
4476                git_footer_html();
4477
4478        } elsif ($format eq 'plain') {
4479                local $/ = undef;
4480                print <$fd>;
4481                close $fd
4482                        or print "Reading git-diff-tree failed\n";
4483        }
4484}
4485
4486sub git_commitdiff_plain {
4487        git_commitdiff('plain');
4488}
4489
4490sub git_history {
4491        if (!defined $hash_base) {
4492                $hash_base = git_get_head_hash($project);
4493        }
4494        if (!defined $page) {
4495                $page = 0;
4496        }
4497        my $ftype;
4498        my %co = parse_commit($hash_base);
4499        if (!%co) {
4500                die_error(undef, "Unknown commit object");
4501        }
4502
4503        my $refs = git_get_references();
4504        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4505
4506        if (!defined $hash && defined $file_name) {
4507                $hash = git_get_hash_by_path($hash_base, $file_name);
4508        }
4509        if (defined $hash) {
4510                $ftype = git_get_type($hash);
4511        }
4512
4513        my @commitlist = parse_commits($hash_base, 101, (100 * $page), "--full-history", $file_name);
4514
4515        my $paging_nav = '';
4516        if ($page > 0) {
4517                $paging_nav .=
4518                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4519                                               file_name=>$file_name)},
4520                                "first");
4521                $paging_nav .= " &sdot; " .
4522                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4523                                               file_name=>$file_name, page=>$page-1),
4524                                 -accesskey => "p", -title => "Alt-p"}, "prev");
4525        } else {
4526                $paging_nav .= "first";
4527                $paging_nav .= " &sdot; prev";
4528        }
4529        if ($#commitlist >= 100) {
4530                $paging_nav .= " &sdot; " .
4531                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4532                                               file_name=>$file_name, page=>$page+1),
4533                                 -accesskey => "n", -title => "Alt-n"}, "next");
4534        } else {
4535                $paging_nav .= " &sdot; next";
4536        }
4537        my $next_link = '';
4538        if ($#commitlist >= 100) {
4539                $next_link =
4540                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4541                                               file_name=>$file_name, page=>$page+1),
4542                                 -accesskey => "n", -title => "Alt-n"}, "next");
4543        }
4544
4545        git_header_html();
4546        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
4547        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4548        git_print_page_path($file_name, $ftype, $hash_base);
4549
4550        git_history_body(\@commitlist, 0, 99,
4551                         $refs, $hash_base, $ftype, $next_link);
4552
4553        git_footer_html();
4554}
4555
4556sub git_search {
4557        my ($have_search) = gitweb_check_feature('search');
4558        if (!$have_search) {
4559                die_error('403 Permission denied', "Permission denied");
4560        }
4561        if (!defined $searchtext) {
4562                die_error(undef, "Text field empty");
4563        }
4564        if (!defined $hash) {
4565                $hash = git_get_head_hash($project);
4566        }
4567        my %co = parse_commit($hash);
4568        if (!%co) {
4569                die_error(undef, "Unknown commit object");
4570        }
4571        if (!defined $page) {
4572                $page = 0;
4573        }
4574
4575        $searchtype ||= 'commit';
4576        if ($searchtype eq 'pickaxe') {
4577                # pickaxe may take all resources of your box and run for several minutes
4578                # with every query - so decide by yourself how public you make this feature
4579                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4580                if (!$have_pickaxe) {
4581                        die_error('403 Permission denied', "Permission denied");
4582                }
4583        }
4584
4585        git_header_html();
4586
4587        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
4588                my $greptype;
4589                if ($searchtype eq 'commit') {
4590                        $greptype = "--grep=";
4591                } elsif ($searchtype eq 'author') {
4592                        $greptype = "--author=";
4593                } elsif ($searchtype eq 'committer') {
4594                        $greptype = "--committer=";
4595                }
4596                $greptype .= $searchtext;
4597                my @commitlist = parse_commits($hash, 101, (100 * $page), $greptype);
4598
4599                my $paging_nav = '';
4600                if ($page > 0) {
4601                        $paging_nav .=
4602                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4603                                                       searchtext=>$searchtext, searchtype=>$searchtype)},
4604                                        "first");
4605                        $paging_nav .= " &sdot; " .
4606                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4607                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4608                                                       page=>$page-1),
4609                                         -accesskey => "p", -title => "Alt-p"}, "prev");
4610                } else {
4611                        $paging_nav .= "first";
4612                        $paging_nav .= " &sdot; prev";
4613                }
4614                if ($#commitlist >= 100) {
4615                        $paging_nav .= " &sdot; " .
4616                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4617                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4618                                                       page=>$page+1),
4619                                         -accesskey => "n", -title => "Alt-n"}, "next");
4620                } else {
4621                        $paging_nav .= " &sdot; next";
4622                }
4623                my $next_link = '';
4624                if ($#commitlist >= 100) {
4625                        $next_link =
4626                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4627                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4628                                                       page=>$page+1),
4629                                         -accesskey => "n", -title => "Alt-n"}, "next");
4630                }
4631
4632                git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
4633                git_print_header_div('commit', esc_html($co{'title'}), $hash);
4634                git_search_grep_body(\@commitlist, 0, 99, $next_link);
4635        }
4636
4637        if ($searchtype eq 'pickaxe') {
4638                git_print_page_nav('','', $hash,$co{'tree'},$hash);
4639                git_print_header_div('commit', esc_html($co{'title'}), $hash);
4640
4641                print "<table cellspacing=\"0\">\n";
4642                my $alternate = 1;
4643                $/ = "\n";
4644                my $git_command = git_cmd_str();
4645                open my $fd, "-|", "$git_command rev-list $hash | " .
4646                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
4647                undef %co;
4648                my @files;
4649                while (my $line = <$fd>) {
4650                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
4651                                my %set;
4652                                $set{'file'} = $6;
4653                                $set{'from_id'} = $3;
4654                                $set{'to_id'} = $4;
4655                                $set{'id'} = $set{'to_id'};
4656                                if ($set{'id'} =~ m/0{40}/) {
4657                                        $set{'id'} = $set{'from_id'};
4658                                }
4659                                if ($set{'id'} =~ m/0{40}/) {
4660                                        next;
4661                                }
4662                                push @files, \%set;
4663                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
4664                                if (%co) {
4665                                        if ($alternate) {
4666                                                print "<tr class=\"dark\">\n";
4667                                        } else {
4668                                                print "<tr class=\"light\">\n";
4669                                        }
4670                                        $alternate ^= 1;
4671                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4672                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4673                                              "<td>" .
4674                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
4675                                                      -class => "list subject"},
4676                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4677                                        while (my $setref = shift @files) {
4678                                                my %set = %$setref;
4679                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
4680                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
4681                                                              -class => "list"},
4682                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
4683                                                      "<br/>\n";
4684                                        }
4685                                        print "</td>\n" .
4686                                              "<td class=\"link\">" .
4687                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4688                                              " | " .
4689                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4690                                        print "</td>\n" .
4691                                              "</tr>\n";
4692                                }
4693                                %co = parse_commit($1);
4694                        }
4695                }
4696                close $fd;
4697
4698                print "</table>\n";
4699        }
4700        git_footer_html();
4701}
4702
4703sub git_search_help {
4704        git_header_html();
4705        git_print_page_nav('','', $hash,$hash,$hash);
4706        print <<EOT;
4707<dl>
4708<dt><b>commit</b></dt>
4709<dd>The commit messages and authorship information will be scanned for the given string.</dd>
4710<dt><b>author</b></dt>
4711<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
4712<dt><b>committer</b></dt>
4713<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
4714EOT
4715        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4716        if ($have_pickaxe) {
4717                print <<EOT;
4718<dt><b>pickaxe</b></dt>
4719<dd>All commits that caused the string to appear or disappear from any file (changes that
4720added, removed or "modified" the string) will be listed. This search can take a while and
4721takes a lot of strain on the server, so please use it wisely.</dd>
4722EOT
4723        }
4724        print "</dl>\n";
4725        git_footer_html();
4726}
4727
4728sub git_shortlog {
4729        my $head = git_get_head_hash($project);
4730        if (!defined $hash) {
4731                $hash = $head;
4732        }
4733        if (!defined $page) {
4734                $page = 0;
4735        }
4736        my $refs = git_get_references();
4737
4738        my @commitlist = parse_commits($hash, 101, (100 * $page));
4739
4740        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, (100 * ($page+1)));
4741        my $next_link = '';
4742        if ($#commitlist >= 100) {
4743                $next_link =
4744                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
4745                                 -accesskey => "n", -title => "Alt-n"}, "next");
4746        }
4747
4748        git_header_html();
4749        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
4750        git_print_header_div('summary', $project);
4751
4752        git_shortlog_body(\@commitlist, 0, 99, $refs, $next_link);
4753
4754        git_footer_html();
4755}
4756
4757## ......................................................................
4758## feeds (RSS, Atom; OPML)
4759
4760sub git_feed {
4761        my $format = shift || 'atom';
4762        my ($have_blame) = gitweb_check_feature('blame');
4763
4764        # Atom: http://www.atomenabled.org/developers/syndication/
4765        # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
4766        if ($format ne 'rss' && $format ne 'atom') {
4767                die_error(undef, "Unknown web feed format");
4768        }
4769
4770        # log/feed of current (HEAD) branch, log of given branch, history of file/directory
4771        my $head = $hash || 'HEAD';
4772        my @commitlist = parse_commits($head, 150);
4773
4774        my %latest_commit;
4775        my %latest_date;
4776        my $content_type = "application/$format+xml";
4777        if (defined $cgi->http('HTTP_ACCEPT') &&
4778                 $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
4779                # browser (feed reader) prefers text/xml
4780                $content_type = 'text/xml';
4781        }
4782        if (defined($commitlist[0])) {
4783                %latest_commit = %{$commitlist[0]};
4784                %latest_date   = parse_date($latest_commit{'author_epoch'});
4785                print $cgi->header(
4786                        -type => $content_type,
4787                        -charset => 'utf-8',
4788                        -last_modified => $latest_date{'rfc2822'});
4789        } else {
4790                print $cgi->header(
4791                        -type => $content_type,
4792                        -charset => 'utf-8');
4793        }
4794
4795        # Optimization: skip generating the body if client asks only
4796        # for Last-Modified date.
4797        return if ($cgi->request_method() eq 'HEAD');
4798
4799        # header variables
4800        my $title = "$site_name - $project/$action";
4801        my $feed_type = 'log';
4802        if (defined $hash) {
4803                $title .= " - '$hash'";
4804                $feed_type = 'branch log';
4805                if (defined $file_name) {
4806                        $title .= " :: $file_name";
4807                        $feed_type = 'history';
4808                }
4809        } elsif (defined $file_name) {
4810                $title .= " - $file_name";
4811                $feed_type = 'history';
4812        }
4813        $title .= " $feed_type";
4814        my $descr = git_get_project_description($project);
4815        if (defined $descr) {
4816                $descr = esc_html($descr);
4817        } else {
4818                $descr = "$project " .
4819                         ($format eq 'rss' ? 'RSS' : 'Atom') .
4820                         " feed";
4821        }
4822        my $owner = git_get_project_owner($project);
4823        $owner = esc_html($owner);
4824
4825        #header
4826        my $alt_url;
4827        if (defined $file_name) {
4828                $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
4829        } elsif (defined $hash) {
4830                $alt_url = href(-full=>1, action=>"log", hash=>$hash);
4831        } else {
4832                $alt_url = href(-full=>1, action=>"summary");
4833        }
4834        print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
4835        if ($format eq 'rss') {
4836                print <<XML;
4837<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
4838<channel>
4839XML
4840                print "<title>$title</title>\n" .
4841                      "<link>$alt_url</link>\n" .
4842                      "<description>$descr</description>\n" .
4843                      "<language>en</language>\n";
4844        } elsif ($format eq 'atom') {
4845                print <<XML;
4846<feed xmlns="http://www.w3.org/2005/Atom">
4847XML
4848                print "<title>$title</title>\n" .
4849                      "<subtitle>$descr</subtitle>\n" .
4850                      '<link rel="alternate" type="text/html" href="' .
4851                      $alt_url . '" />' . "\n" .
4852                      '<link rel="self" type="' . $content_type . '" href="' .
4853                      $cgi->self_url() . '" />' . "\n" .
4854                      "<id>" . href(-full=>1) . "</id>\n" .
4855                      # use project owner for feed author
4856                      "<author><name>$owner</name></author>\n";
4857                if (defined $favicon) {
4858                        print "<icon>" . esc_url($favicon) . "</icon>\n";
4859                }
4860                if (defined $logo_url) {
4861                        # not twice as wide as tall: 72 x 27 pixels
4862                        print "<logo>" . esc_url($logo) . "</logo>\n";
4863                }
4864                if (! %latest_date) {
4865                        # dummy date to keep the feed valid until commits trickle in:
4866                        print "<updated>1970-01-01T00:00:00Z</updated>\n";
4867                } else {
4868                        print "<updated>$latest_date{'iso-8601'}</updated>\n";
4869                }
4870        }
4871
4872        # contents
4873        for (my $i = 0; $i <= $#commitlist; $i++) {
4874                my %co = %{$commitlist[$i]};
4875                my $commit = $co{'id'};
4876                # we read 150, we always show 30 and the ones more recent than 48 hours
4877                if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
4878                        last;
4879                }
4880                my %cd = parse_date($co{'author_epoch'});
4881
4882                # get list of changed files
4883                open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4884                        $co{'parent'}, $co{'id'}, "--", (defined $file_name ? $file_name : ())
4885                        or next;
4886                my @difftree = map { chomp; $_ } <$fd>;
4887                close $fd
4888                        or next;
4889
4890                # print element (entry, item)
4891                my $co_url = href(-full=>1, action=>"commit", hash=>$commit);
4892                if ($format eq 'rss') {
4893                        print "<item>\n" .
4894                              "<title>" . esc_html($co{'title'}) . "</title>\n" .
4895                              "<author>" . esc_html($co{'author'}) . "</author>\n" .
4896                              "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
4897                              "<guid isPermaLink=\"true\">$co_url</guid>\n" .
4898                              "<link>$co_url</link>\n" .
4899                              "<description>" . esc_html($co{'title'}) . "</description>\n" .
4900                              "<content:encoded>" .
4901                              "<![CDATA[\n";
4902                } elsif ($format eq 'atom') {
4903                        print "<entry>\n" .
4904                              "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
4905                              "<updated>$cd{'iso-8601'}</updated>\n" .
4906                              "<author>\n" .
4907                              "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
4908                        if ($co{'author_email'}) {
4909                                print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
4910                        }
4911                        print "</author>\n" .
4912                              # use committer for contributor
4913                              "<contributor>\n" .
4914                              "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
4915                        if ($co{'committer_email'}) {
4916                                print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
4917                        }
4918                        print "</contributor>\n" .
4919                              "<published>$cd{'iso-8601'}</published>\n" .
4920                              "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
4921                              "<id>$co_url</id>\n" .
4922                              "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
4923                              "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
4924                }
4925                my $comment = $co{'comment'};
4926                print "<pre>\n";
4927                foreach my $line (@$comment) {
4928                        $line = esc_html($line);
4929                        print "$line\n";
4930                }
4931                print "</pre><ul>\n";
4932                foreach my $difftree_line (@difftree) {
4933                        my %difftree = parse_difftree_raw_line($difftree_line);
4934                        next if !$difftree{'from_id'};
4935
4936                        my $file = $difftree{'file'} || $difftree{'to_file'};
4937
4938                        print "<li>" .
4939                              "[" .
4940                              $cgi->a({-href => href(-full=>1, action=>"blobdiff",
4941                                                     hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
4942                                                     hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
4943                                                     file_name=>$file, file_parent=>$difftree{'from_file'}),
4944                                      -title => "diff"}, 'D');
4945                        if ($have_blame) {
4946                                print $cgi->a({-href => href(-full=>1, action=>"blame",
4947                                                             file_name=>$file, hash_base=>$commit),
4948                                              -title => "blame"}, 'B');
4949                        }
4950                        # if this is not a feed of a file history
4951                        if (!defined $file_name || $file_name ne $file) {
4952                                print $cgi->a({-href => href(-full=>1, action=>"history",
4953                                                             file_name=>$file, hash=>$commit),
4954                                              -title => "history"}, 'H');
4955                        }
4956                        $file = esc_path($file);
4957                        print "] ".
4958                              "$file</li>\n";
4959                }
4960                if ($format eq 'rss') {
4961                        print "</ul>]]>\n" .
4962                              "</content:encoded>\n" .
4963                              "</item>\n";
4964                } elsif ($format eq 'atom') {
4965                        print "</ul>\n</div>\n" .
4966                              "</content>\n" .
4967                              "</entry>\n";
4968                }
4969        }
4970
4971        # end of feed
4972        if ($format eq 'rss') {
4973                print "</channel>\n</rss>\n";
4974        }       elsif ($format eq 'atom') {
4975                print "</feed>\n";
4976        }
4977}
4978
4979sub git_rss {
4980        git_feed('rss');
4981}
4982
4983sub git_atom {
4984        git_feed('atom');
4985}
4986
4987sub git_opml {
4988        my @list = git_get_projects_list();
4989
4990        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4991        print <<XML;
4992<?xml version="1.0" encoding="utf-8"?>
4993<opml version="1.0">
4994<head>
4995  <title>$site_name OPML Export</title>
4996</head>
4997<body>
4998<outline text="git RSS feeds">
4999XML
5000
5001        foreach my $pr (@list) {
5002                my %proj = %$pr;
5003                my $head = git_get_head_hash($proj{'path'});
5004                if (!defined $head) {
5005                        next;
5006                }
5007                $git_dir = "$projectroot/$proj{'path'}";
5008                my %co = parse_commit($head);
5009                if (!%co) {
5010                        next;
5011                }
5012
5013                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
5014                my $rss  = "$my_url?p=$proj{'path'};a=rss";
5015                my $html = "$my_url?p=$proj{'path'};a=summary";
5016                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
5017        }
5018        print <<XML;
5019</outline>
5020</body>
5021</opml>
5022XML
5023}