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# show repository only if this file exists
  75# (only effective if this variable evaluates to true)
  76our $export_ok = "++GITWEB_EXPORT_OK++";
  77
  78# only allow viewing of repositories also shown on the overview page
  79our $strict_export = "++GITWEB_STRICT_EXPORT++";
  80
  81# list of git base URLs used for URL to where fetch project from,
  82# i.e. full URL is "$git_base_url/$project"
  83our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  84
  85# default blob_plain mimetype and default charset for text/plain blob
  86our $default_blob_plain_mimetype = 'text/plain';
  87our $default_text_plain_charset  = undef;
  88
  89# file to use for guessing MIME types before trying /etc/mime.types
  90# (relative to the current git repository)
  91our $mimetypes_file = undef;
  92
  93# You define site-wide feature defaults here; override them with
  94# $GITWEB_CONFIG as necessary.
  95our %feature = (
  96        # feature => {
  97        #       'sub' => feature-sub (subroutine),
  98        #       'override' => allow-override (boolean),
  99        #       'default' => [ default options...] (array reference)}
 100        #
 101        # if feature is overridable (it means that allow-override has true value),
 102        # then feature-sub will be called with default options as parameters;
 103        # return value of feature-sub indicates if to enable specified feature
 104        #
 105        # if there is no 'sub' key (no feature-sub), then feature cannot be
 106        # overriden
 107        #
 108        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 109
 110        # Enable the 'blame' blob view, showing the last commit that modified
 111        # each line in the file. This can be very CPU-intensive.
 112
 113        # To enable system wide have in $GITWEB_CONFIG
 114        # $feature{'blame'}{'default'} = [1];
 115        # To have project specific config enable override in $GITWEB_CONFIG
 116        # $feature{'blame'}{'override'} = 1;
 117        # and in project config gitweb.blame = 0|1;
 118        'blame' => {
 119                'sub' => \&feature_blame,
 120                'override' => 0,
 121                'default' => [0]},
 122
 123        # Enable the 'snapshot' link, providing a compressed tarball of any
 124        # tree. This can potentially generate high traffic if you have large
 125        # project.
 126
 127        # To disable system wide have in $GITWEB_CONFIG
 128        # $feature{'snapshot'}{'default'} = [undef];
 129        # To have project specific config enable override in $GITWEB_CONFIG
 130        # $feature{'snapshot'}{'override'} = 1;
 131        # and in project config gitweb.snapshot = none|gzip|bzip2;
 132        'snapshot' => {
 133                'sub' => \&feature_snapshot,
 134                'override' => 0,
 135                #         => [content-encoding, suffix, program]
 136                'default' => ['x-gzip', 'gz', 'gzip']},
 137
 138        # Enable text search, which will list the commits which match author,
 139        # committer or commit text to a given string.  Enabled by default.
 140        # Project specific override is not supported.
 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. This feature is supported only if project list
 184        # is taken from a directory, not file.
 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 $char = substr($line, 0, 1);
 901        my $diff_class = "";
 902
 903        chomp $line;
 904
 905        if ($char eq '+') {
 906                $diff_class = " add";
 907        } elsif ($char eq "-") {
 908                $diff_class = " rem";
 909        } elsif ($char eq "@") {
 910                $diff_class = " chunk_header";
 911        } elsif ($char eq "\\") {
 912                $diff_class = " incomplete";
 913        }
 914        $line = untabify($line);
 915        if ($from && $to && $line =~ m/^\@{2} /) {
 916                my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
 917                        $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
 918
 919                $from_lines = 0 unless defined $from_lines;
 920                $to_lines   = 0 unless defined $to_lines;
 921
 922                if ($from->{'href'}) {
 923                        $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
 924                                             -class=>"list"}, $from_text);
 925                }
 926                if ($to->{'href'}) {
 927                        $to_text   = $cgi->a({-href=>"$to->{'href'}#l$to_start",
 928                                             -class=>"list"}, $to_text);
 929                }
 930                $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
 931                        "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
 932                return "<div class=\"diff$diff_class\">$line</div>\n";
 933        }
 934        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
 935}
 936
 937## ----------------------------------------------------------------------
 938## git utility subroutines, invoking git commands
 939
 940# returns path to the core git executable and the --git-dir parameter as list
 941sub git_cmd {
 942        return $GIT, '--git-dir='.$git_dir;
 943}
 944
 945# returns path to the core git executable and the --git-dir parameter as string
 946sub git_cmd_str {
 947        return join(' ', git_cmd());
 948}
 949
 950# get HEAD ref of given project as hash
 951sub git_get_head_hash {
 952        my $project = shift;
 953        my $o_git_dir = $git_dir;
 954        my $retval = undef;
 955        $git_dir = "$projectroot/$project";
 956        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 957                my $head = <$fd>;
 958                close $fd;
 959                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 960                        $retval = $1;
 961                }
 962        }
 963        if (defined $o_git_dir) {
 964                $git_dir = $o_git_dir;
 965        }
 966        return $retval;
 967}
 968
 969# get type of given object
 970sub git_get_type {
 971        my $hash = shift;
 972
 973        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 974        my $type = <$fd>;
 975        close $fd or return;
 976        chomp $type;
 977        return $type;
 978}
 979
 980sub git_get_project_config {
 981        my ($key, $type) = @_;
 982
 983        return unless ($key);
 984        $key =~ s/^gitweb\.//;
 985        return if ($key =~ m/\W/);
 986
 987        my @x = (git_cmd(), 'config');
 988        if (defined $type) { push @x, $type; }
 989        push @x, "--get";
 990        push @x, "gitweb.$key";
 991        my $val = qx(@x);
 992        chomp $val;
 993        return ($val);
 994}
 995
 996# get hash of given path at given ref
 997sub git_get_hash_by_path {
 998        my $base = shift;
 999        my $path = shift || return undef;
1000        my $type = shift;
1001
1002        $path =~ s,/+$,,;
1003
1004        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
1005                or die_error(undef, "Open git-ls-tree failed");
1006        my $line = <$fd>;
1007        close $fd or return undef;
1008
1009        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1010        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
1011        if (defined $type && $type ne $2) {
1012                # type doesn't match
1013                return undef;
1014        }
1015        return $3;
1016}
1017
1018## ......................................................................
1019## git utility functions, directly accessing git repository
1020
1021sub git_get_project_description {
1022        my $path = shift;
1023
1024        open my $fd, "$projectroot/$path/description" or return undef;
1025        my $descr = <$fd>;
1026        close $fd;
1027        chomp $descr;
1028        return $descr;
1029}
1030
1031sub git_get_project_url_list {
1032        my $path = shift;
1033
1034        open my $fd, "$projectroot/$path/cloneurl" or return;
1035        my @git_project_url_list = map { chomp; $_ } <$fd>;
1036        close $fd;
1037
1038        return wantarray ? @git_project_url_list : \@git_project_url_list;
1039}
1040
1041sub git_get_projects_list {
1042        my ($filter) = @_;
1043        my @list;
1044
1045        $filter ||= '';
1046        $filter =~ s/\.git$//;
1047
1048        if (-d $projects_list) {
1049                # search in directory
1050                my $dir = $projects_list . ($filter ? "/$filter" : '');
1051                # remove the trailing "/"
1052                $dir =~ s!/+$!!;
1053                my $pfxlen = length("$dir");
1054
1055                my ($check_forks) = gitweb_check_feature('forks');
1056
1057                File::Find::find({
1058                        follow_fast => 1, # follow symbolic links
1059                        dangling_symlinks => 0, # ignore dangling symlinks, silently
1060                        wanted => sub {
1061                                # skip project-list toplevel, if we get it.
1062                                return if (m!^[/.]$!);
1063                                # only directories can be git repositories
1064                                return unless (-d $_);
1065
1066                                my $subdir = substr($File::Find::name, $pfxlen + 1);
1067                                # we check related file in $projectroot
1068                                if ($check_forks and $subdir =~ m#/.#) {
1069                                        $File::Find::prune = 1;
1070                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
1071                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
1072                                        $File::Find::prune = 1;
1073                                }
1074                        },
1075                }, "$dir");
1076
1077        } elsif (-f $projects_list) {
1078                # read from file(url-encoded):
1079                # 'git%2Fgit.git Linus+Torvalds'
1080                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1081                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1082                open my ($fd), $projects_list or return;
1083                while (my $line = <$fd>) {
1084                        chomp $line;
1085                        my ($path, $owner) = split ' ', $line;
1086                        $path = unescape($path);
1087                        $owner = unescape($owner);
1088                        if (!defined $path) {
1089                                next;
1090                        }
1091                        if ($filter ne '') {
1092                                # looking for forks;
1093                                my $pfx = substr($path, 0, length($filter));
1094                                if ($pfx ne $filter) {
1095                                        next;
1096                                }
1097                                my $sfx = substr($path, length($filter));
1098                                if ($sfx !~ /^\/.*\.git$/) {
1099                                        next;
1100                                }
1101                        }
1102                        if (check_export_ok("$projectroot/$path")) {
1103                                my $pr = {
1104                                        path => $path,
1105                                        owner => decode_utf8($owner),
1106                                };
1107                                push @list, $pr
1108                        }
1109                }
1110                close $fd;
1111        }
1112        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
1113        return @list;
1114}
1115
1116sub git_get_project_owner {
1117        my $project = shift;
1118        my $owner;
1119
1120        return undef unless $project;
1121
1122        # read from file (url-encoded):
1123        # 'git%2Fgit.git Linus+Torvalds'
1124        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
1125        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
1126        if (-f $projects_list) {
1127                open (my $fd , $projects_list);
1128                while (my $line = <$fd>) {
1129                        chomp $line;
1130                        my ($pr, $ow) = split ' ', $line;
1131                        $pr = unescape($pr);
1132                        $ow = unescape($ow);
1133                        if ($pr eq $project) {
1134                                $owner = decode_utf8($ow);
1135                                last;
1136                        }
1137                }
1138                close $fd;
1139        }
1140        if (!defined $owner) {
1141                $owner = get_file_owner("$projectroot/$project");
1142        }
1143
1144        return $owner;
1145}
1146
1147sub git_get_last_activity {
1148        my ($path) = @_;
1149        my $fd;
1150
1151        $git_dir = "$projectroot/$path";
1152        open($fd, "-|", git_cmd(), 'for-each-ref',
1153             '--format=%(committer)',
1154             '--sort=-committerdate',
1155             '--count=1',
1156             'refs/heads') or return;
1157        my $most_recent = <$fd>;
1158        close $fd or return;
1159        if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1160                my $timestamp = $1;
1161                my $age = time - $timestamp;
1162                return ($age, age_string($age));
1163        }
1164}
1165
1166sub git_get_references {
1167        my $type = shift || "";
1168        my %refs;
1169        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
1170        # c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
1171        open my $fd, "-|", git_cmd(), "show-ref", "--dereference",
1172                ($type ? ("--", "refs/$type") : ()) # use -- <pattern> if $type
1173                or return;
1174
1175        while (my $line = <$fd>) {
1176                chomp $line;
1177                if ($line =~ m!^([0-9a-fA-F]{40})\srefs/($type/?[^^]+)!) {
1178                        if (defined $refs{$1}) {
1179                                push @{$refs{$1}}, $2;
1180                        } else {
1181                                $refs{$1} = [ $2 ];
1182                        }
1183                }
1184        }
1185        close $fd or return;
1186        return \%refs;
1187}
1188
1189sub git_get_rev_name_tags {
1190        my $hash = shift || return undef;
1191
1192        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1193                or return;
1194        my $name_rev = <$fd>;
1195        close $fd;
1196
1197        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1198                return $1;
1199        } else {
1200                # catches also '$hash undefined' output
1201                return undef;
1202        }
1203}
1204
1205## ----------------------------------------------------------------------
1206## parse to hash functions
1207
1208sub parse_date {
1209        my $epoch = shift;
1210        my $tz = shift || "-0000";
1211
1212        my %date;
1213        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1214        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1215        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1216        $date{'hour'} = $hour;
1217        $date{'minute'} = $min;
1218        $date{'mday'} = $mday;
1219        $date{'day'} = $days[$wday];
1220        $date{'month'} = $months[$mon];
1221        $date{'rfc2822'}   = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1222                             $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1223        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1224                             $mday, $months[$mon], $hour ,$min;
1225        $date{'iso-8601'}  = sprintf "%04d-%02d-%02dT%02d:%02d:%02dZ",
1226                             1900+$year, $mon, $mday, $hour ,$min, $sec;
1227
1228        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1229        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1230        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1231        $date{'hour_local'} = $hour;
1232        $date{'minute_local'} = $min;
1233        $date{'tz_local'} = $tz;
1234        $date{'iso-tz'} = sprintf("%04d-%02d-%02d %02d:%02d:%02d %s",
1235                                  1900+$year, $mon+1, $mday,
1236                                  $hour, $min, $sec, $tz);
1237        return %date;
1238}
1239
1240sub parse_tag {
1241        my $tag_id = shift;
1242        my %tag;
1243        my @comment;
1244
1245        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1246        $tag{'id'} = $tag_id;
1247        while (my $line = <$fd>) {
1248                chomp $line;
1249                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1250                        $tag{'object'} = $1;
1251                } elsif ($line =~ m/^type (.+)$/) {
1252                        $tag{'type'} = $1;
1253                } elsif ($line =~ m/^tag (.+)$/) {
1254                        $tag{'name'} = $1;
1255                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1256                        $tag{'author'} = $1;
1257                        $tag{'epoch'} = $2;
1258                        $tag{'tz'} = $3;
1259                } elsif ($line =~ m/--BEGIN/) {
1260                        push @comment, $line;
1261                        last;
1262                } elsif ($line eq "") {
1263                        last;
1264                }
1265        }
1266        push @comment, <$fd>;
1267        $tag{'comment'} = \@comment;
1268        close $fd or return;
1269        if (!defined $tag{'name'}) {
1270                return
1271        };
1272        return %tag
1273}
1274
1275sub parse_commit_text {
1276        my ($commit_text, $withparents) = @_;
1277        my @commit_lines = split '\n', $commit_text;
1278        my %co;
1279
1280        pop @commit_lines; # Remove '\0'
1281
1282        my $header = shift @commit_lines;
1283        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1284                return;
1285        }
1286        ($co{'id'}, my @parents) = split ' ', $header;
1287        while (my $line = shift @commit_lines) {
1288                last if $line eq "\n";
1289                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1290                        $co{'tree'} = $1;
1291                } elsif ((!defined $withparents) && ($line =~ m/^parent ([0-9a-fA-F]{40})$/)) {
1292                        push @parents, $1;
1293                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1294                        $co{'author'} = $1;
1295                        $co{'author_epoch'} = $2;
1296                        $co{'author_tz'} = $3;
1297                        if ($co{'author'} =~ m/^([^<]+) <([^>]*)>/) {
1298                                $co{'author_name'}  = $1;
1299                                $co{'author_email'} = $2;
1300                        } else {
1301                                $co{'author_name'} = $co{'author'};
1302                        }
1303                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1304                        $co{'committer'} = $1;
1305                        $co{'committer_epoch'} = $2;
1306                        $co{'committer_tz'} = $3;
1307                        $co{'committer_name'} = $co{'committer'};
1308                        if ($co{'committer'} =~ m/^([^<]+) <([^>]*)>/) {
1309                                $co{'committer_name'}  = $1;
1310                                $co{'committer_email'} = $2;
1311                        } else {
1312                                $co{'committer_name'} = $co{'committer'};
1313                        }
1314                }
1315        }
1316        if (!defined $co{'tree'}) {
1317                return;
1318        };
1319        $co{'parents'} = \@parents;
1320        $co{'parent'} = $parents[0];
1321
1322        foreach my $title (@commit_lines) {
1323                $title =~ s/^    //;
1324                if ($title ne "") {
1325                        $co{'title'} = chop_str($title, 80, 5);
1326                        # remove leading stuff of merges to make the interesting part visible
1327                        if (length($title) > 50) {
1328                                $title =~ s/^Automatic //;
1329                                $title =~ s/^merge (of|with) /Merge ... /i;
1330                                if (length($title) > 50) {
1331                                        $title =~ s/(http|rsync):\/\///;
1332                                }
1333                                if (length($title) > 50) {
1334                                        $title =~ s/(master|www|rsync)\.//;
1335                                }
1336                                if (length($title) > 50) {
1337                                        $title =~ s/kernel.org:?//;
1338                                }
1339                                if (length($title) > 50) {
1340                                        $title =~ s/\/pub\/scm//;
1341                                }
1342                        }
1343                        $co{'title_short'} = chop_str($title, 50, 5);
1344                        last;
1345                }
1346        }
1347        if ($co{'title'} eq "") {
1348                $co{'title'} = $co{'title_short'} = '(no commit message)';
1349        }
1350        # remove added spaces
1351        foreach my $line (@commit_lines) {
1352                $line =~ s/^    //;
1353        }
1354        $co{'comment'} = \@commit_lines;
1355
1356        my $age = time - $co{'committer_epoch'};
1357        $co{'age'} = $age;
1358        $co{'age_string'} = age_string($age);
1359        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1360        if ($age > 60*60*24*7*2) {
1361                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1362                $co{'age_string_age'} = $co{'age_string'};
1363        } else {
1364                $co{'age_string_date'} = $co{'age_string'};
1365                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1366        }
1367        return %co;
1368}
1369
1370sub parse_commit {
1371        my ($commit_id) = @_;
1372        my %co;
1373
1374        local $/ = "\0";
1375
1376        open my $fd, "-|", git_cmd(), "rev-list",
1377                "--parents",
1378                "--header",
1379                "--max-count=1",
1380                $commit_id,
1381                "--",
1382                or die_error(undef, "Open git-rev-list failed");
1383        %co = parse_commit_text(<$fd>, 1);
1384        close $fd;
1385
1386        return %co;
1387}
1388
1389sub parse_commits {
1390        my ($commit_id, $maxcount, $skip, $arg, $filename) = @_;
1391        my @cos;
1392
1393        $maxcount ||= 1;
1394        $skip ||= 0;
1395
1396        local $/ = "\0";
1397
1398        open my $fd, "-|", git_cmd(), "rev-list",
1399                "--header",
1400                ($arg ? ($arg) : ()),
1401                ("--max-count=" . $maxcount),
1402                ("--skip=" . $skip),
1403                $commit_id,
1404                "--",
1405                ($filename ? ($filename) : ())
1406                or die_error(undef, "Open git-rev-list failed");
1407        while (my $line = <$fd>) {
1408                my %co = parse_commit_text($line);
1409                push @cos, \%co;
1410        }
1411        close $fd;
1412
1413        return wantarray ? @cos : \@cos;
1414}
1415
1416# parse ref from ref_file, given by ref_id, with given type
1417sub parse_ref {
1418        my $ref_file = shift;
1419        my $ref_id = shift;
1420        my $type = shift || git_get_type($ref_id);
1421        my %ref_item;
1422
1423        $ref_item{'type'} = $type;
1424        $ref_item{'id'} = $ref_id;
1425        $ref_item{'epoch'} = 0;
1426        $ref_item{'age'} = "unknown";
1427        if ($type eq "tag") {
1428                my %tag = parse_tag($ref_id);
1429                $ref_item{'comment'} = $tag{'comment'};
1430                if ($tag{'type'} eq "commit") {
1431                        my %co = parse_commit($tag{'object'});
1432                        $ref_item{'epoch'} = $co{'committer_epoch'};
1433                        $ref_item{'age'} = $co{'age_string'};
1434                } elsif (defined($tag{'epoch'})) {
1435                        my $age = time - $tag{'epoch'};
1436                        $ref_item{'epoch'} = $tag{'epoch'};
1437                        $ref_item{'age'} = age_string($age);
1438                }
1439                $ref_item{'reftype'} = $tag{'type'};
1440                $ref_item{'name'} = $tag{'name'};
1441                $ref_item{'refid'} = $tag{'object'};
1442        } elsif ($type eq "commit"){
1443                my %co = parse_commit($ref_id);
1444                $ref_item{'reftype'} = "commit";
1445                $ref_item{'name'} = $ref_file;
1446                $ref_item{'title'} = $co{'title'};
1447                $ref_item{'refid'} = $ref_id;
1448                $ref_item{'epoch'} = $co{'committer_epoch'};
1449                $ref_item{'age'} = $co{'age_string'};
1450        } else {
1451                $ref_item{'reftype'} = $type;
1452                $ref_item{'name'} = $ref_file;
1453                $ref_item{'refid'} = $ref_id;
1454        }
1455
1456        return %ref_item;
1457}
1458
1459# parse line of git-diff-tree "raw" output
1460sub parse_difftree_raw_line {
1461        my $line = shift;
1462        my %res;
1463
1464        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1465        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1466        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1467                $res{'from_mode'} = $1;
1468                $res{'to_mode'} = $2;
1469                $res{'from_id'} = $3;
1470                $res{'to_id'} = $4;
1471                $res{'status'} = $5;
1472                $res{'similarity'} = $6;
1473                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1474                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1475                } else {
1476                        $res{'file'} = unquote($7);
1477                }
1478        }
1479        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1480        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1481                $res{'commit'} = $1;
1482        }
1483
1484        return wantarray ? %res : \%res;
1485}
1486
1487# parse line of git-ls-tree output
1488sub parse_ls_tree_line ($;%) {
1489        my $line = shift;
1490        my %opts = @_;
1491        my %res;
1492
1493        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1494        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1495
1496        $res{'mode'} = $1;
1497        $res{'type'} = $2;
1498        $res{'hash'} = $3;
1499        if ($opts{'-z'}) {
1500                $res{'name'} = $4;
1501        } else {
1502                $res{'name'} = unquote($4);
1503        }
1504
1505        return wantarray ? %res : \%res;
1506}
1507
1508## ......................................................................
1509## parse to array of hashes functions
1510
1511sub git_get_heads_list {
1512        my $limit = shift;
1513        my @headslist;
1514
1515        open my $fd, '-|', git_cmd(), 'for-each-ref',
1516                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1517                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1518                'refs/heads'
1519                or return;
1520        while (my $line = <$fd>) {
1521                my %ref_item;
1522
1523                chomp $line;
1524                my ($refinfo, $committerinfo) = split(/\0/, $line);
1525                my ($hash, $name, $title) = split(' ', $refinfo, 3);
1526                my ($committer, $epoch, $tz) =
1527                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1528                $name =~ s!^refs/heads/!!;
1529
1530                $ref_item{'name'}  = $name;
1531                $ref_item{'id'}    = $hash;
1532                $ref_item{'title'} = $title || '(no commit message)';
1533                $ref_item{'epoch'} = $epoch;
1534                if ($epoch) {
1535                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1536                } else {
1537                        $ref_item{'age'} = "unknown";
1538                }
1539
1540                push @headslist, \%ref_item;
1541        }
1542        close $fd;
1543
1544        return wantarray ? @headslist : \@headslist;
1545}
1546
1547sub git_get_tags_list {
1548        my $limit = shift;
1549        my @tagslist;
1550
1551        open my $fd, '-|', git_cmd(), 'for-each-ref',
1552                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1553                '--format=%(objectname) %(objecttype) %(refname) '.
1554                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1555                'refs/tags'
1556                or return;
1557        while (my $line = <$fd>) {
1558                my %ref_item;
1559
1560                chomp $line;
1561                my ($refinfo, $creatorinfo) = split(/\0/, $line);
1562                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1563                my ($creator, $epoch, $tz) =
1564                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1565                $name =~ s!^refs/tags/!!;
1566
1567                $ref_item{'type'} = $type;
1568                $ref_item{'id'} = $id;
1569                $ref_item{'name'} = $name;
1570                if ($type eq "tag") {
1571                        $ref_item{'subject'} = $title;
1572                        $ref_item{'reftype'} = $reftype;
1573                        $ref_item{'refid'}   = $refid;
1574                } else {
1575                        $ref_item{'reftype'} = $type;
1576                        $ref_item{'refid'}   = $id;
1577                }
1578
1579                if ($type eq "tag" || $type eq "commit") {
1580                        $ref_item{'epoch'} = $epoch;
1581                        if ($epoch) {
1582                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1583                        } else {
1584                                $ref_item{'age'} = "unknown";
1585                        }
1586                }
1587
1588                push @tagslist, \%ref_item;
1589        }
1590        close $fd;
1591
1592        return wantarray ? @tagslist : \@tagslist;
1593}
1594
1595## ----------------------------------------------------------------------
1596## filesystem-related functions
1597
1598sub get_file_owner {
1599        my $path = shift;
1600
1601        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1602        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1603        if (!defined $gcos) {
1604                return undef;
1605        }
1606        my $owner = $gcos;
1607        $owner =~ s/[,;].*$//;
1608        return decode_utf8($owner);
1609}
1610
1611## ......................................................................
1612## mimetype related functions
1613
1614sub mimetype_guess_file {
1615        my $filename = shift;
1616        my $mimemap = shift;
1617        -r $mimemap or return undef;
1618
1619        my %mimemap;
1620        open(MIME, $mimemap) or return undef;
1621        while (<MIME>) {
1622                next if m/^#/; # skip comments
1623                my ($mime, $exts) = split(/\t+/);
1624                if (defined $exts) {
1625                        my @exts = split(/\s+/, $exts);
1626                        foreach my $ext (@exts) {
1627                                $mimemap{$ext} = $mime;
1628                        }
1629                }
1630        }
1631        close(MIME);
1632
1633        $filename =~ /\.([^.]*)$/;
1634        return $mimemap{$1};
1635}
1636
1637sub mimetype_guess {
1638        my $filename = shift;
1639        my $mime;
1640        $filename =~ /\./ or return undef;
1641
1642        if ($mimetypes_file) {
1643                my $file = $mimetypes_file;
1644                if ($file !~ m!^/!) { # if it is relative path
1645                        # it is relative to project
1646                        $file = "$projectroot/$project/$file";
1647                }
1648                $mime = mimetype_guess_file($filename, $file);
1649        }
1650        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1651        return $mime;
1652}
1653
1654sub blob_mimetype {
1655        my $fd = shift;
1656        my $filename = shift;
1657
1658        if ($filename) {
1659                my $mime = mimetype_guess($filename);
1660                $mime and return $mime;
1661        }
1662
1663        # just in case
1664        return $default_blob_plain_mimetype unless $fd;
1665
1666        if (-T $fd) {
1667                return 'text/plain' .
1668                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1669        } elsif (! $filename) {
1670                return 'application/octet-stream';
1671        } elsif ($filename =~ m/\.png$/i) {
1672                return 'image/png';
1673        } elsif ($filename =~ m/\.gif$/i) {
1674                return 'image/gif';
1675        } elsif ($filename =~ m/\.jpe?g$/i) {
1676                return 'image/jpeg';
1677        } else {
1678                return 'application/octet-stream';
1679        }
1680}
1681
1682## ======================================================================
1683## functions printing HTML: header, footer, error page
1684
1685sub git_header_html {
1686        my $status = shift || "200 OK";
1687        my $expires = shift;
1688
1689        my $title = "$site_name";
1690        if (defined $project) {
1691                $title .= " - " . decode_utf8($project);
1692                if (defined $action) {
1693                        $title .= "/$action";
1694                        if (defined $file_name) {
1695                                $title .= " - " . esc_path($file_name);
1696                                if ($action eq "tree" && $file_name !~ m|/$|) {
1697                                        $title .= "/";
1698                                }
1699                        }
1700                }
1701        }
1702        my $content_type;
1703        # require explicit support from the UA if we are to send the page as
1704        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1705        # we have to do this because MSIE sometimes globs '*/*', pretending to
1706        # support xhtml+xml but choking when it gets what it asked for.
1707        if (defined $cgi->http('HTTP_ACCEPT') &&
1708            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1709            $cgi->Accept('application/xhtml+xml') != 0) {
1710                $content_type = 'application/xhtml+xml';
1711        } else {
1712                $content_type = 'text/html';
1713        }
1714        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1715                           -status=> $status, -expires => $expires);
1716        my $mod_perl_version = $ENV{'MOD_PERL'} ? " $ENV{'MOD_PERL'}" : '';
1717        print <<EOF;
1718<?xml version="1.0" encoding="utf-8"?>
1719<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1720<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1721<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1722<!-- git core binaries version $git_version -->
1723<head>
1724<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1725<meta name="generator" content="gitweb/$version git/$git_version$mod_perl_version"/>
1726<meta name="robots" content="index, nofollow"/>
1727<title>$title</title>
1728EOF
1729# print out each stylesheet that exist
1730        if (defined $stylesheet) {
1731#provides backwards capability for those people who define style sheet in a config file
1732                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1733        } else {
1734                foreach my $stylesheet (@stylesheets) {
1735                        next unless $stylesheet;
1736                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1737                }
1738        }
1739        if (defined $project) {
1740                printf('<link rel="alternate" title="%s log RSS feed" '.
1741                       'href="%s" type="application/rss+xml" />'."\n",
1742                       esc_param($project), href(action=>"rss"));
1743                printf('<link rel="alternate" title="%s log Atom feed" '.
1744                       'href="%s" type="application/atom+xml" />'."\n",
1745                       esc_param($project), href(action=>"atom"));
1746        } else {
1747                printf('<link rel="alternate" title="%s projects list" '.
1748                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1749                       $site_name, href(project=>undef, action=>"project_index"));
1750                printf('<link rel="alternate" title="%s projects feeds" '.
1751                       'href="%s" type="text/x-opml"/>'."\n",
1752                       $site_name, href(project=>undef, action=>"opml"));
1753        }
1754        if (defined $favicon) {
1755                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1756        }
1757
1758        print "</head>\n" .
1759              "<body>\n";
1760
1761        if (-f $site_header) {
1762                open (my $fd, $site_header);
1763                print <$fd>;
1764                close $fd;
1765        }
1766
1767        print "<div class=\"page_header\">\n" .
1768              $cgi->a({-href => esc_url($logo_url),
1769                       -title => $logo_label},
1770                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1771        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1772        if (defined $project) {
1773                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1774                if (defined $action) {
1775                        print " / $action";
1776                }
1777                print "\n";
1778        }
1779        my ($have_search) = gitweb_check_feature('search');
1780        if ((defined $project) && ($have_search)) {
1781                if (!defined $searchtext) {
1782                        $searchtext = "";
1783                }
1784                my $search_hash;
1785                if (defined $hash_base) {
1786                        $search_hash = $hash_base;
1787                } elsif (defined $hash) {
1788                        $search_hash = $hash;
1789                } else {
1790                        $search_hash = "HEAD";
1791                }
1792                $cgi->param("a", "search");
1793                $cgi->param("h", $search_hash);
1794                $cgi->param("p", $project);
1795                print $cgi->startform(-method => "get", -action => $my_uri) .
1796                      "<div class=\"search\">\n" .
1797                      $cgi->hidden(-name => "p") . "\n" .
1798                      $cgi->hidden(-name => "a") . "\n" .
1799                      $cgi->hidden(-name => "h") . "\n" .
1800                      $cgi->popup_menu(-name => 'st', -default => 'commit',
1801                                       -values => ['commit', 'author', 'committer', 'pickaxe']) .
1802                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1803                      " search:\n",
1804                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1805                      "</div>" .
1806                      $cgi->end_form() . "\n";
1807        }
1808        print "</div>\n";
1809}
1810
1811sub git_footer_html {
1812        print "<div class=\"page_footer\">\n";
1813        if (defined $project) {
1814                my $descr = git_get_project_description($project);
1815                if (defined $descr) {
1816                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1817                }
1818                print $cgi->a({-href => href(action=>"rss"),
1819                              -class => "rss_logo"}, "RSS") . " ";
1820                print $cgi->a({-href => href(action=>"atom"),
1821                              -class => "rss_logo"}, "Atom") . "\n";
1822        } else {
1823                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1824                              -class => "rss_logo"}, "OPML") . " ";
1825                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1826                              -class => "rss_logo"}, "TXT") . "\n";
1827        }
1828        print "</div>\n" ;
1829
1830        if (-f $site_footer) {
1831                open (my $fd, $site_footer);
1832                print <$fd>;
1833                close $fd;
1834        }
1835
1836        print "</body>\n" .
1837              "</html>";
1838}
1839
1840sub die_error {
1841        my $status = shift || "403 Forbidden";
1842        my $error = shift || "Malformed query, file missing or permission denied";
1843
1844        git_header_html($status);
1845        print <<EOF;
1846<div class="page_body">
1847<br /><br />
1848$status - $error
1849<br />
1850</div>
1851EOF
1852        git_footer_html();
1853        exit;
1854}
1855
1856## ----------------------------------------------------------------------
1857## functions printing or outputting HTML: navigation
1858
1859sub git_print_page_nav {
1860        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1861        $extra = '' if !defined $extra; # pager or formats
1862
1863        my @navs = qw(summary shortlog log commit commitdiff tree);
1864        if ($suppress) {
1865                @navs = grep { $_ ne $suppress } @navs;
1866        }
1867
1868        my %arg = map { $_ => {action=>$_} } @navs;
1869        if (defined $head) {
1870                for (qw(commit commitdiff)) {
1871                        $arg{$_}{hash} = $head;
1872                }
1873                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1874                        for (qw(shortlog log)) {
1875                                $arg{$_}{hash} = $head;
1876                        }
1877                }
1878        }
1879        $arg{tree}{hash} = $treehead if defined $treehead;
1880        $arg{tree}{hash_base} = $treebase if defined $treebase;
1881
1882        print "<div class=\"page_nav\">\n" .
1883                (join " | ",
1884                 map { $_ eq $current ?
1885                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1886                 } @navs);
1887        print "<br/>\n$extra<br/>\n" .
1888              "</div>\n";
1889}
1890
1891sub format_paging_nav {
1892        my ($action, $hash, $head, $page, $nrevs) = @_;
1893        my $paging_nav;
1894
1895
1896        if ($hash ne $head || $page) {
1897                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1898        } else {
1899                $paging_nav .= "HEAD";
1900        }
1901
1902        if ($page > 0) {
1903                $paging_nav .= " &sdot; " .
1904                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1905                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1906        } else {
1907                $paging_nav .= " &sdot; prev";
1908        }
1909
1910        if ($nrevs >= (100 * ($page+1)-1)) {
1911                $paging_nav .= " &sdot; " .
1912                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1913                                 -accesskey => "n", -title => "Alt-n"}, "next");
1914        } else {
1915                $paging_nav .= " &sdot; next";
1916        }
1917
1918        return $paging_nav;
1919}
1920
1921## ......................................................................
1922## functions printing or outputting HTML: div
1923
1924sub git_print_header_div {
1925        my ($action, $title, $hash, $hash_base) = @_;
1926        my %args = ();
1927
1928        $args{action} = $action;
1929        $args{hash} = $hash if $hash;
1930        $args{hash_base} = $hash_base if $hash_base;
1931
1932        print "<div class=\"header\">\n" .
1933              $cgi->a({-href => href(%args), -class => "title"},
1934              $title ? $title : $action) .
1935              "\n</div>\n";
1936}
1937
1938#sub git_print_authorship (\%) {
1939sub git_print_authorship {
1940        my $co = shift;
1941
1942        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1943        print "<div class=\"author_date\">" .
1944              esc_html($co->{'author_name'}) .
1945              " [$ad{'rfc2822'}";
1946        if ($ad{'hour_local'} < 6) {
1947                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1948                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1949        } else {
1950                printf(" (%02d:%02d %s)",
1951                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1952        }
1953        print "]</div>\n";
1954}
1955
1956sub git_print_page_path {
1957        my $name = shift;
1958        my $type = shift;
1959        my $hb = shift;
1960
1961
1962        print "<div class=\"page_path\">";
1963        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1964                      -title => 'tree root'}, decode_utf8("[$project]"));
1965        print " / ";
1966        if (defined $name) {
1967                my @dirname = split '/', $name;
1968                my $basename = pop @dirname;
1969                my $fullname = '';
1970
1971                foreach my $dir (@dirname) {
1972                        $fullname .= ($fullname ? '/' : '') . $dir;
1973                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1974                                                     hash_base=>$hb),
1975                                      -title => $fullname}, esc_path($dir));
1976                        print " / ";
1977                }
1978                if (defined $type && $type eq 'blob') {
1979                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1980                                                     hash_base=>$hb),
1981                                      -title => $name}, esc_path($basename));
1982                } elsif (defined $type && $type eq 'tree') {
1983                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1984                                                     hash_base=>$hb),
1985                                      -title => $name}, esc_path($basename));
1986                        print " / ";
1987                } else {
1988                        print esc_path($basename);
1989                }
1990        }
1991        print "<br/></div>\n";
1992}
1993
1994# sub git_print_log (\@;%) {
1995sub git_print_log ($;%) {
1996        my $log = shift;
1997        my %opts = @_;
1998
1999        if ($opts{'-remove_title'}) {
2000                # remove title, i.e. first line of log
2001                shift @$log;
2002        }
2003        # remove leading empty lines
2004        while (defined $log->[0] && $log->[0] eq "") {
2005                shift @$log;
2006        }
2007
2008        # print log
2009        my $signoff = 0;
2010        my $empty = 0;
2011        foreach my $line (@$log) {
2012                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2013                        $signoff = 1;
2014                        $empty = 0;
2015                        if (! $opts{'-remove_signoff'}) {
2016                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2017                                next;
2018                        } else {
2019                                # remove signoff lines
2020                                next;
2021                        }
2022                } else {
2023                        $signoff = 0;
2024                }
2025
2026                # print only one empty line
2027                # do not print empty line after signoff
2028                if ($line eq "") {
2029                        next if ($empty || $signoff);
2030                        $empty = 1;
2031                } else {
2032                        $empty = 0;
2033                }
2034
2035                print format_log_line_html($line) . "<br/>\n";
2036        }
2037
2038        if ($opts{'-final_empty_line'}) {
2039                # end with single empty line
2040                print "<br/>\n" unless $empty;
2041        }
2042}
2043
2044# return link target (what link points to)
2045sub git_get_link_target {
2046        my $hash = shift;
2047        my $link_target;
2048
2049        # read link
2050        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2051                or return;
2052        {
2053                local $/;
2054                $link_target = <$fd>;
2055        }
2056        close $fd
2057                or return;
2058
2059        return $link_target;
2060}
2061
2062# given link target, and the directory (basedir) the link is in,
2063# return target of link relative to top directory (top tree);
2064# return undef if it is not possible (including absolute links).
2065sub normalize_link_target {
2066        my ($link_target, $basedir, $hash_base) = @_;
2067
2068        # we can normalize symlink target only if $hash_base is provided
2069        return unless $hash_base;
2070
2071        # absolute symlinks (beginning with '/') cannot be normalized
2072        return if (substr($link_target, 0, 1) eq '/');
2073
2074        # normalize link target to path from top (root) tree (dir)
2075        my $path;
2076        if ($basedir) {
2077                $path = $basedir . '/' . $link_target;
2078        } else {
2079                # we are in top (root) tree (dir)
2080                $path = $link_target;
2081        }
2082
2083        # remove //, /./, and /../
2084        my @path_parts;
2085        foreach my $part (split('/', $path)) {
2086                # discard '.' and ''
2087                next if (!$part || $part eq '.');
2088                # handle '..'
2089                if ($part eq '..') {
2090                        if (@path_parts) {
2091                                pop @path_parts;
2092                        } else {
2093                                # link leads outside repository (outside top dir)
2094                                return;
2095                        }
2096                } else {
2097                        push @path_parts, $part;
2098                }
2099        }
2100        $path = join('/', @path_parts);
2101
2102        return $path;
2103}
2104
2105# print tree entry (row of git_tree), but without encompassing <tr> element
2106sub git_print_tree_entry {
2107        my ($t, $basedir, $hash_base, $have_blame) = @_;
2108
2109        my %base_key = ();
2110        $base_key{'hash_base'} = $hash_base if defined $hash_base;
2111
2112        # The format of a table row is: mode list link.  Where mode is
2113        # the mode of the entry, list is the name of the entry, an href,
2114        # and link is the action links of the entry.
2115
2116        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
2117        if ($t->{'type'} eq "blob") {
2118                print "<td class=\"list\">" .
2119                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2120                                               file_name=>"$basedir$t->{'name'}", %base_key),
2121                                -class => "list"}, esc_path($t->{'name'}));
2122                if (S_ISLNK(oct $t->{'mode'})) {
2123                        my $link_target = git_get_link_target($t->{'hash'});
2124                        if ($link_target) {
2125                                my $norm_target = normalize_link_target($link_target, $basedir, $hash_base);
2126                                if (defined $norm_target) {
2127                                        print " -> " .
2128                                              $cgi->a({-href => href(action=>"object", hash_base=>$hash_base,
2129                                                                     file_name=>$norm_target),
2130                                                       -title => $norm_target}, esc_path($link_target));
2131                                } else {
2132                                        print " -> " . esc_path($link_target);
2133                                }
2134                        }
2135                }
2136                print "</td>\n";
2137                print "<td class=\"link\">";
2138                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
2139                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2140                              "blob");
2141                if ($have_blame) {
2142                        print " | " .
2143                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
2144                                                     file_name=>"$basedir$t->{'name'}", %base_key)},
2145                                      "blame");
2146                }
2147                if (defined $hash_base) {
2148                        print " | " .
2149                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2150                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
2151                                      "history");
2152                }
2153                print " | " .
2154                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
2155                                               file_name=>"$basedir$t->{'name'}")},
2156                                "raw");
2157                print "</td>\n";
2158
2159        } elsif ($t->{'type'} eq "tree") {
2160                print "<td class=\"list\">";
2161                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2162                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2163                              esc_path($t->{'name'}));
2164                print "</td>\n";
2165                print "<td class=\"link\">";
2166                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
2167                                             file_name=>"$basedir$t->{'name'}", %base_key)},
2168                              "tree");
2169                if (defined $hash_base) {
2170                        print " | " .
2171                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
2172                                                     file_name=>"$basedir$t->{'name'}")},
2173                                      "history");
2174                }
2175                print "</td>\n";
2176        }
2177}
2178
2179## ......................................................................
2180## functions printing large fragments of HTML
2181
2182sub git_difftree_body {
2183        my ($difftree, $hash, $parent) = @_;
2184        my ($have_blame) = gitweb_check_feature('blame');
2185        print "<div class=\"list_head\">\n";
2186        if ($#{$difftree} > 10) {
2187                print(($#{$difftree} + 1) . " files changed:\n");
2188        }
2189        print "</div>\n";
2190
2191        print "<table class=\"diff_tree\">\n";
2192        my $alternate = 1;
2193        my $patchno = 0;
2194        foreach my $line (@{$difftree}) {
2195                my %diff = parse_difftree_raw_line($line);
2196
2197                if ($alternate) {
2198                        print "<tr class=\"dark\">\n";
2199                } else {
2200                        print "<tr class=\"light\">\n";
2201                }
2202                $alternate ^= 1;
2203
2204                my ($to_mode_oct, $to_mode_str, $to_file_type);
2205                my ($from_mode_oct, $from_mode_str, $from_file_type);
2206                if ($diff{'to_mode'} ne ('0' x 6)) {
2207                        $to_mode_oct = oct $diff{'to_mode'};
2208                        if (S_ISREG($to_mode_oct)) { # only for regular file
2209                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
2210                        }
2211                        $to_file_type = file_type($diff{'to_mode'});
2212                }
2213                if ($diff{'from_mode'} ne ('0' x 6)) {
2214                        $from_mode_oct = oct $diff{'from_mode'};
2215                        if (S_ISREG($to_mode_oct)) { # only for regular file
2216                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
2217                        }
2218                        $from_file_type = file_type($diff{'from_mode'});
2219                }
2220
2221                if ($diff{'status'} eq "A") { # created
2222                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
2223                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
2224                        $mode_chng   .= "]</span>";
2225                        print "<td>";
2226                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2227                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2228                                      -class => "list"}, esc_path($diff{'file'}));
2229                        print "</td>\n";
2230                        print "<td>$mode_chng</td>\n";
2231                        print "<td class=\"link\">";
2232                        if ($action eq 'commitdiff') {
2233                                # link to patch
2234                                $patchno++;
2235                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2236                                print " | ";
2237                        }
2238                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2239                                                     hash_base=>$hash, file_name=>$diff{'file'})},
2240                                      "blob");
2241                        print "</td>\n";
2242
2243                } elsif ($diff{'status'} eq "D") { # deleted
2244                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
2245                        print "<td>";
2246                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2247                                                     hash_base=>$parent, file_name=>$diff{'file'}),
2248                                       -class => "list"}, esc_path($diff{'file'}));
2249                        print "</td>\n";
2250                        print "<td>$mode_chng</td>\n";
2251                        print "<td class=\"link\">";
2252                        if ($action eq 'commitdiff') {
2253                                # link to patch
2254                                $patchno++;
2255                                print $cgi->a({-href => "#patch$patchno"}, "patch");
2256                                print " | ";
2257                        }
2258                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2259                                                     hash_base=>$parent, file_name=>$diff{'file'})},
2260                                      "blob") . " | ";
2261                        if ($have_blame) {
2262                                print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2263                                                             file_name=>$diff{'file'})},
2264                                              "blame") . " | ";
2265                        }
2266                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2267                                                     file_name=>$diff{'file'})},
2268                                      "history");
2269                        print "</td>\n";
2270
2271                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
2272                        my $mode_chnge = "";
2273                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2274                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
2275                                if ($from_file_type ne $to_file_type) {
2276                                        $mode_chnge .= " from $from_file_type to $to_file_type";
2277                                }
2278                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
2279                                        if ($from_mode_str && $to_mode_str) {
2280                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2281                                        } elsif ($to_mode_str) {
2282                                                $mode_chnge .= " mode: $to_mode_str";
2283                                        }
2284                                }
2285                                $mode_chnge .= "]</span>\n";
2286                        }
2287                        print "<td>";
2288                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2289                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2290                                      -class => "list"}, esc_path($diff{'file'}));
2291                        print "</td>\n";
2292                        print "<td>$mode_chnge</td>\n";
2293                        print "<td class=\"link\">";
2294                        if ($action eq 'commitdiff') {
2295                                # link to patch
2296                                $patchno++;
2297                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2298                                      " | ";
2299                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2300                                # "commit" view and modified file (not onlu mode changed)
2301                                print $cgi->a({-href => href(action=>"blobdiff",
2302                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2303                                                             hash_base=>$hash, hash_parent_base=>$parent,
2304                                                             file_name=>$diff{'file'})},
2305                                              "diff") .
2306                                      " | ";
2307                        }
2308                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2309                                                     hash_base=>$hash, file_name=>$diff{'file'})},
2310                                       "blob") . " | ";
2311                        if ($have_blame) {
2312                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2313                                                             file_name=>$diff{'file'})},
2314                                              "blame") . " | ";
2315                        }
2316                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2317                                                     file_name=>$diff{'file'})},
2318                                      "history");
2319                        print "</td>\n";
2320
2321                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
2322                        my %status_name = ('R' => 'moved', 'C' => 'copied');
2323                        my $nstatus = $status_name{$diff{'status'}};
2324                        my $mode_chng = "";
2325                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2326                                # mode also for directories, so we cannot use $to_mode_str
2327                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2328                        }
2329                        print "<td>" .
2330                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2331                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
2332                                      -class => "list"}, esc_path($diff{'to_file'})) . "</td>\n" .
2333                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2334                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2335                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
2336                                      -class => "list"}, esc_path($diff{'from_file'})) .
2337                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2338                              "<td class=\"link\">";
2339                        if ($action eq 'commitdiff') {
2340                                # link to patch
2341                                $patchno++;
2342                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2343                                      " | ";
2344                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2345                                # "commit" view and modified file (not only pure rename or copy)
2346                                print $cgi->a({-href => href(action=>"blobdiff",
2347                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2348                                                             hash_base=>$hash, hash_parent_base=>$parent,
2349                                                             file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2350                                              "diff") .
2351                                      " | ";
2352                        }
2353                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2354                                                     hash_base=>$parent, file_name=>$diff{'to_file'})},
2355                                      "blob") . " | ";
2356                        if ($have_blame) {
2357                                print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2358                                                             file_name=>$diff{'to_file'})},
2359                                              "blame") . " | ";
2360                        }
2361                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2362                                                    file_name=>$diff{'to_file'})},
2363                                      "history");
2364                        print "</td>\n";
2365
2366                } # we should not encounter Unmerged (U) or Unknown (X) status
2367                print "</tr>\n";
2368        }
2369        print "</table>\n";
2370}
2371
2372sub git_patchset_body {
2373        my ($fd, $difftree, $hash, $hash_parent) = @_;
2374
2375        my $patch_idx = 0;
2376        my $patch_line;
2377        my $diffinfo;
2378        my (%from, %to);
2379
2380        print "<div class=\"patchset\">\n";
2381
2382        # skip to first patch
2383        while ($patch_line = <$fd>) {
2384                chomp $patch_line;
2385
2386                last if ($patch_line =~ m/^diff /);
2387        }
2388
2389 PATCH:
2390        while ($patch_line) {
2391                my @diff_header;
2392                my ($from_id, $to_id);
2393
2394                # git diff header
2395                #assert($patch_line =~ m/^diff /) if DEBUG;
2396                #assert($patch_line !~ m!$/$!) if DEBUG; # is chomp-ed
2397                push @diff_header, $patch_line;
2398
2399                # extended diff header
2400        EXTENDED_HEADER:
2401                while ($patch_line = <$fd>) {
2402                        chomp $patch_line;
2403
2404                        last EXTENDED_HEADER if ($patch_line =~ m/^--- |^diff /);
2405
2406                        if ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/) {
2407                                $from_id = $1;
2408                                $to_id   = $2;
2409                        }
2410
2411                        push @diff_header, $patch_line;
2412                }
2413                my $last_patch_line = $patch_line;
2414
2415                # check if current patch belong to current raw line
2416                # and parse raw git-diff line if needed
2417                if (defined $diffinfo &&
2418                    $diffinfo->{'from_id'} eq $from_id &&
2419                    $diffinfo->{'to_id'}   eq $to_id) {
2420                        # this is split patch
2421                        print "<div class=\"patch cont\">\n";
2422                } else {
2423                        # advance raw git-diff output if needed
2424                        $patch_idx++ if defined $diffinfo;
2425
2426                        # read and prepare patch information
2427                        if (ref($difftree->[$patch_idx]) eq "HASH") {
2428                                # pre-parsed (or generated by hand)
2429                                $diffinfo = $difftree->[$patch_idx];
2430                        } else {
2431                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2432                        }
2433                        $from{'file'} = $diffinfo->{'from_file'} || $diffinfo->{'file'};
2434                        $to{'file'}   = $diffinfo->{'to_file'}   || $diffinfo->{'file'};
2435                        if ($diffinfo->{'status'} ne "A") { # not new (added) file
2436                                $from{'href'} = href(action=>"blob", hash_base=>$hash_parent,
2437                                                     hash=>$diffinfo->{'from_id'},
2438                                                     file_name=>$from{'file'});
2439                        } else {
2440                                delete $from{'href'};
2441                        }
2442                        if ($diffinfo->{'status'} ne "D") { # not deleted file
2443                                $to{'href'} = href(action=>"blob", hash_base=>$hash,
2444                                                   hash=>$diffinfo->{'to_id'},
2445                                                   file_name=>$to{'file'});
2446                        } else {
2447                                delete $to{'href'};
2448                        }
2449                        # this is first patch for raw difftree line with $patch_idx index
2450                        # we index @$difftree array from 0, but number patches from 1
2451                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2452                }
2453
2454                # print "git diff" header
2455                $patch_line = shift @diff_header;
2456                $patch_line =~ s!^(diff (.*?) )"?a/.*$!$1!;
2457                if ($from{'href'}) {
2458                        $patch_line .= $cgi->a({-href => $from{'href'}, -class => "path"},
2459                                               'a/' . esc_path($from{'file'}));
2460                } else { # file was added
2461                        $patch_line .= 'a/' . esc_path($from{'file'});
2462                }
2463                $patch_line .= ' ';
2464                if ($to{'href'}) {
2465                        $patch_line .= $cgi->a({-href => $to{'href'}, -class => "path"},
2466                                               'b/' . esc_path($to{'file'}));
2467                } else { # file was deleted
2468                        $patch_line .= 'b/' . esc_path($to{'file'});
2469                }
2470                print "<div class=\"diff header\">$patch_line</div>\n";
2471
2472                # print extended diff header
2473                print "<div class=\"diff extended_header\">\n" if (@diff_header > 0);
2474        EXTENDED_HEADER:
2475                foreach $patch_line (@diff_header) {
2476                        # match <path>
2477                        if ($patch_line =~ s!^((copy|rename) from ).*$!$1! && $from{'href'}) {
2478                                $patch_line .= $cgi->a({-href=>$from{'href'}, -class=>"path"},
2479                                                       esc_path($from{'file'}));
2480                        }
2481                        if ($patch_line =~ s!^((copy|rename) to ).*$!$1! && $to{'href'}) {
2482                                $patch_line .= $cgi->a({-href=>$to{'href'}, -class=>"path"},
2483                                                       esc_path($to{'file'}));
2484                        }
2485                        # match <mode>
2486                        if ($patch_line =~ m/\s(\d{6})$/) {
2487                                $patch_line .= '<span class="info"> (' .
2488                                               file_type_long($1) .
2489                                               ')</span>';
2490                        }
2491                        # match <hash>
2492                        if ($patch_line =~ m/^index/) {
2493                                my ($from_link, $to_link);
2494                                if ($from{'href'}) {
2495                                        $from_link = $cgi->a({-href=>$from{'href'}, -class=>"hash"},
2496                                                             substr($diffinfo->{'from_id'},0,7));
2497                                } else {
2498                                        $from_link = '0' x 7;
2499                                }
2500                                if ($to{'href'}) {
2501                                        $to_link = $cgi->a({-href=>$to{'href'}, -class=>"hash"},
2502                                                           substr($diffinfo->{'to_id'},0,7));
2503                                } else {
2504                                        $to_link = '0' x 7;
2505                                }
2506                                #affirm {
2507                                #       my ($from_hash, $to_hash) =
2508                                #               ($patch_line =~ m/^index ([0-9a-fA-F]{40})..([0-9a-fA-F]{40})/);
2509                                #       my ($from_id, $to_id) =
2510                                #               ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2511                                #       ($from_hash eq $from_id) && ($to_hash eq $to_id);
2512                                #} if DEBUG;
2513                                my ($from_id, $to_id) = ($diffinfo->{'from_id'}, $diffinfo->{'to_id'});
2514                                $patch_line =~ s!$from_id\.\.$to_id!$from_link..$to_link!;
2515                        }
2516                        print $patch_line . "<br/>\n";
2517                }
2518                print "</div>\n"  if (@diff_header > 0); # class="diff extended_header"
2519
2520                # from-file/to-file diff header
2521                $patch_line = $last_patch_line;
2522                if (! $patch_line) {
2523                        print "</div>\n"; # class="patch"
2524                        last PATCH;
2525                }
2526                next PATCH if ($patch_line =~ m/^diff /);
2527                #assert($patch_line =~ m/^---/) if DEBUG;
2528                if ($from{'href'} && $patch_line =~ m!^--- "?a/!) {
2529                        $patch_line = '--- a/' .
2530                                      $cgi->a({-href=>$from{'href'}, -class=>"path"},
2531                                              esc_path($from{'file'}));
2532                }
2533                print "<div class=\"diff from_file\">$patch_line</div>\n";
2534
2535                $patch_line = <$fd>;
2536                chomp $patch_line;
2537
2538                #assert($patch_line =~ m/^+++/) if DEBUG;
2539                if ($to{'href'} && $patch_line =~ m!^\+\+\+ "?b/!) {
2540                        $patch_line = '+++ b/' .
2541                                      $cgi->a({-href=>$to{'href'}, -class=>"path"},
2542                                              esc_path($to{'file'}));
2543                }
2544                print "<div class=\"diff to_file\">$patch_line</div>\n";
2545
2546                # the patch itself
2547        LINE:
2548                while ($patch_line = <$fd>) {
2549                        chomp $patch_line;
2550
2551                        next PATCH if ($patch_line =~ m/^diff /);
2552
2553                        print format_diff_line($patch_line, \%from, \%to);
2554                }
2555
2556        } continue {
2557                print "</div>\n"; # class="patch"
2558        }
2559
2560        print "</div>\n"; # class="patchset"
2561}
2562
2563# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2564
2565sub git_project_list_body {
2566        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2567
2568        my ($check_forks) = gitweb_check_feature('forks');
2569
2570        my @projects;
2571        foreach my $pr (@$projlist) {
2572                my (@aa) = git_get_last_activity($pr->{'path'});
2573                unless (@aa) {
2574                        next;
2575                }
2576                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2577                if (!defined $pr->{'descr'}) {
2578                        my $descr = git_get_project_description($pr->{'path'}) || "";
2579                        $pr->{'descr_long'} = decode_utf8($descr);
2580                        $pr->{'descr'} = chop_str($descr, 25, 5);
2581                }
2582                if (!defined $pr->{'owner'}) {
2583                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2584                }
2585                if ($check_forks) {
2586                        my $pname = $pr->{'path'};
2587                        if (($pname =~ s/\.git$//) &&
2588                            ($pname !~ /\/$/) &&
2589                            (-d "$projectroot/$pname")) {
2590                                $pr->{'forks'} = "-d $projectroot/$pname";
2591                        }
2592                        else {
2593                                $pr->{'forks'} = 0;
2594                        }
2595                }
2596                push @projects, $pr;
2597        }
2598
2599        $order ||= "project";
2600        $from = 0 unless defined $from;
2601        $to = $#projects if (!defined $to || $#projects < $to);
2602
2603        print "<table class=\"project_list\">\n";
2604        unless ($no_header) {
2605                print "<tr>\n";
2606                if ($check_forks) {
2607                        print "<th></th>\n";
2608                }
2609                if ($order eq "project") {
2610                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2611                        print "<th>Project</th>\n";
2612                } else {
2613                        print "<th>" .
2614                              $cgi->a({-href => href(project=>undef, order=>'project'),
2615                                       -class => "header"}, "Project") .
2616                              "</th>\n";
2617                }
2618                if ($order eq "descr") {
2619                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2620                        print "<th>Description</th>\n";
2621                } else {
2622                        print "<th>" .
2623                              $cgi->a({-href => href(project=>undef, order=>'descr'),
2624                                       -class => "header"}, "Description") .
2625                              "</th>\n";
2626                }
2627                if ($order eq "owner") {
2628                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2629                        print "<th>Owner</th>\n";
2630                } else {
2631                        print "<th>" .
2632                              $cgi->a({-href => href(project=>undef, order=>'owner'),
2633                                       -class => "header"}, "Owner") .
2634                              "</th>\n";
2635                }
2636                if ($order eq "age") {
2637                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2638                        print "<th>Last Change</th>\n";
2639                } else {
2640                        print "<th>" .
2641                              $cgi->a({-href => href(project=>undef, order=>'age'),
2642                                       -class => "header"}, "Last Change") .
2643                              "</th>\n";
2644                }
2645                print "<th></th>\n" .
2646                      "</tr>\n";
2647        }
2648        my $alternate = 1;
2649        for (my $i = $from; $i <= $to; $i++) {
2650                my $pr = $projects[$i];
2651                if ($alternate) {
2652                        print "<tr class=\"dark\">\n";
2653                } else {
2654                        print "<tr class=\"light\">\n";
2655                }
2656                $alternate ^= 1;
2657                if ($check_forks) {
2658                        print "<td>";
2659                        if ($pr->{'forks'}) {
2660                                print "<!-- $pr->{'forks'} -->\n";
2661                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2662                        }
2663                        print "</td>\n";
2664                }
2665                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2666                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2667                      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2668                                        -class => "list", -title => $pr->{'descr_long'}},
2669                                        esc_html($pr->{'descr'})) . "</td>\n" .
2670                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2671                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2672                      $pr->{'age_string'} . "</td>\n" .
2673                      "<td class=\"link\">" .
2674                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2675                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
2676                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2677                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2678                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
2679                      "</td>\n" .
2680                      "</tr>\n";
2681        }
2682        if (defined $extra) {
2683                print "<tr>\n";
2684                if ($check_forks) {
2685                        print "<td></td>\n";
2686                }
2687                print "<td colspan=\"5\">$extra</td>\n" .
2688                      "</tr>\n";
2689        }
2690        print "</table>\n";
2691}
2692
2693sub git_shortlog_body {
2694        # uses global variable $project
2695        my ($commitlist, $from, $to, $refs, $extra) = @_;
2696
2697        my $have_snapshot = gitweb_have_snapshot();
2698
2699        $from = 0 unless defined $from;
2700        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
2701
2702        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2703        my $alternate = 1;
2704        for (my $i = $from; $i <= $to; $i++) {
2705                my %co = %{$commitlist->[$i]};
2706                my $commit = $co{'id'};
2707                my $ref = format_ref_marker($refs, $commit);
2708                if ($alternate) {
2709                        print "<tr class=\"dark\">\n";
2710                } else {
2711                        print "<tr class=\"light\">\n";
2712                }
2713                $alternate ^= 1;
2714                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2715                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2716                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2717                      "<td>";
2718                print format_subject_html($co{'title'}, $co{'title_short'},
2719                                          href(action=>"commit", hash=>$commit), $ref);
2720                print "</td>\n" .
2721                      "<td class=\"link\">" .
2722                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2723                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2724                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2725                if ($have_snapshot) {
2726                        print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2727                }
2728                print "</td>\n" .
2729                      "</tr>\n";
2730        }
2731        if (defined $extra) {
2732                print "<tr>\n" .
2733                      "<td colspan=\"4\">$extra</td>\n" .
2734                      "</tr>\n";
2735        }
2736        print "</table>\n";
2737}
2738
2739sub git_history_body {
2740        # Warning: assumes constant type (blob or tree) during history
2741        my ($commitlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2742
2743        $from = 0 unless defined $from;
2744        $to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
2745
2746        print "<table class=\"history\" cellspacing=\"0\">\n";
2747        my $alternate = 1;
2748        for (my $i = $from; $i <= $to; $i++) {
2749                my %co = %{$commitlist->[$i]};
2750                if (!%co) {
2751                        next;
2752                }
2753                my $commit = $co{'id'};
2754
2755                my $ref = format_ref_marker($refs, $commit);
2756
2757                if ($alternate) {
2758                        print "<tr class=\"dark\">\n";
2759                } else {
2760                        print "<tr class=\"light\">\n";
2761                }
2762                $alternate ^= 1;
2763                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2764                      # shortlog uses      chop_str($co{'author_name'}, 10)
2765                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2766                      "<td>";
2767                # originally git_history used chop_str($co{'title'}, 50)
2768                print format_subject_html($co{'title'}, $co{'title_short'},
2769                                          href(action=>"commit", hash=>$commit), $ref);
2770                print "</td>\n" .
2771                      "<td class=\"link\">" .
2772                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2773                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2774
2775                if ($ftype eq 'blob') {
2776                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2777                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2778                        if (defined $blob_current && defined $blob_parent &&
2779                                        $blob_current ne $blob_parent) {
2780                                print " | " .
2781                                        $cgi->a({-href => href(action=>"blobdiff",
2782                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2783                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2784                                                               file_name=>$file_name)},
2785                                                "diff to current");
2786                        }
2787                }
2788                print "</td>\n" .
2789                      "</tr>\n";
2790        }
2791        if (defined $extra) {
2792                print "<tr>\n" .
2793                      "<td colspan=\"4\">$extra</td>\n" .
2794                      "</tr>\n";
2795        }
2796        print "</table>\n";
2797}
2798
2799sub git_tags_body {
2800        # uses global variable $project
2801        my ($taglist, $from, $to, $extra) = @_;
2802        $from = 0 unless defined $from;
2803        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2804
2805        print "<table class=\"tags\" cellspacing=\"0\">\n";
2806        my $alternate = 1;
2807        for (my $i = $from; $i <= $to; $i++) {
2808                my $entry = $taglist->[$i];
2809                my %tag = %$entry;
2810                my $comment = $tag{'subject'};
2811                my $comment_short;
2812                if (defined $comment) {
2813                        $comment_short = chop_str($comment, 30, 5);
2814                }
2815                if ($alternate) {
2816                        print "<tr class=\"dark\">\n";
2817                } else {
2818                        print "<tr class=\"light\">\n";
2819                }
2820                $alternate ^= 1;
2821                if (defined $tag{'age'}) {
2822                        print "<td><i>$tag{'age'}</i></td>\n";
2823                } else {
2824                        print "<td></td>\n";
2825                }
2826                print "<td>" .
2827                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2828                               -class => "list name"}, esc_html($tag{'name'})) .
2829                      "</td>\n" .
2830                      "<td>";
2831                if (defined $comment) {
2832                        print format_subject_html($comment, $comment_short,
2833                                                  href(action=>"tag", hash=>$tag{'id'}));
2834                }
2835                print "</td>\n" .
2836                      "<td class=\"selflink\">";
2837                if ($tag{'type'} eq "tag") {
2838                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2839                } else {
2840                        print "&nbsp;";
2841                }
2842                print "</td>\n" .
2843                      "<td class=\"link\">" . " | " .
2844                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2845                if ($tag{'reftype'} eq "commit") {
2846                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2847                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
2848                } elsif ($tag{'reftype'} eq "blob") {
2849                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2850                }
2851                print "</td>\n" .
2852                      "</tr>";
2853        }
2854        if (defined $extra) {
2855                print "<tr>\n" .
2856                      "<td colspan=\"5\">$extra</td>\n" .
2857                      "</tr>\n";
2858        }
2859        print "</table>\n";
2860}
2861
2862sub git_heads_body {
2863        # uses global variable $project
2864        my ($headlist, $head, $from, $to, $extra) = @_;
2865        $from = 0 unless defined $from;
2866        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2867
2868        print "<table class=\"heads\" cellspacing=\"0\">\n";
2869        my $alternate = 1;
2870        for (my $i = $from; $i <= $to; $i++) {
2871                my $entry = $headlist->[$i];
2872                my %ref = %$entry;
2873                my $curr = $ref{'id'} eq $head;
2874                if ($alternate) {
2875                        print "<tr class=\"dark\">\n";
2876                } else {
2877                        print "<tr class=\"light\">\n";
2878                }
2879                $alternate ^= 1;
2880                print "<td><i>$ref{'age'}</i></td>\n" .
2881                      ($curr ? "<td class=\"current_head\">" : "<td>") .
2882                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
2883                               -class => "list name"},esc_html($ref{'name'})) .
2884                      "</td>\n" .
2885                      "<td class=\"link\">" .
2886                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
2887                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
2888                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
2889                      "</td>\n" .
2890                      "</tr>";
2891        }
2892        if (defined $extra) {
2893                print "<tr>\n" .
2894                      "<td colspan=\"3\">$extra</td>\n" .
2895                      "</tr>\n";
2896        }
2897        print "</table>\n";
2898}
2899
2900sub git_search_grep_body {
2901        my ($commitlist, $from, $to, $extra) = @_;
2902        $from = 0 unless defined $from;
2903        $to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
2904
2905        print "<table class=\"grep\" cellspacing=\"0\">\n";
2906        my $alternate = 1;
2907        for (my $i = $from; $i <= $to; $i++) {
2908                my %co = %{$commitlist->[$i]};
2909                if (!%co) {
2910                        next;
2911                }
2912                my $commit = $co{'id'};
2913                if ($alternate) {
2914                        print "<tr class=\"dark\">\n";
2915                } else {
2916                        print "<tr class=\"light\">\n";
2917                }
2918                $alternate ^= 1;
2919                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2920                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2921                      "<td>" .
2922                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
2923                               esc_html(chop_str($co{'title'}, 50)) . "<br/>");
2924                my $comment = $co{'comment'};
2925                foreach my $line (@$comment) {
2926                        if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2927                                my $lead = esc_html($1) || "";
2928                                $lead = chop_str($lead, 30, 10);
2929                                my $match = esc_html($2) || "";
2930                                my $trail = esc_html($3) || "";
2931                                $trail = chop_str($trail, 30, 10);
2932                                my $text = "$lead<span class=\"match\">$match</span>$trail";
2933                                print chop_str($text, 80, 5) . "<br/>\n";
2934                        }
2935                }
2936                print "</td>\n" .
2937                      "<td class=\"link\">" .
2938                      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2939                      " | " .
2940                      $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2941                print "</td>\n" .
2942                      "</tr>\n";
2943        }
2944        if (defined $extra) {
2945                print "<tr>\n" .
2946                      "<td colspan=\"3\">$extra</td>\n" .
2947                      "</tr>\n";
2948        }
2949        print "</table>\n";
2950}
2951
2952## ======================================================================
2953## ======================================================================
2954## actions
2955
2956sub git_project_list {
2957        my $order = $cgi->param('o');
2958        if (defined $order && $order !~ m/project|descr|owner|age/) {
2959                die_error(undef, "Unknown order parameter");
2960        }
2961
2962        my @list = git_get_projects_list();
2963        if (!@list) {
2964                die_error(undef, "No projects found");
2965        }
2966
2967        git_header_html();
2968        if (-f $home_text) {
2969                print "<div class=\"index_include\">\n";
2970                open (my $fd, $home_text);
2971                print <$fd>;
2972                close $fd;
2973                print "</div>\n";
2974        }
2975        git_project_list_body(\@list, $order);
2976        git_footer_html();
2977}
2978
2979sub git_forks {
2980        my $order = $cgi->param('o');
2981        if (defined $order && $order !~ m/project|descr|owner|age/) {
2982                die_error(undef, "Unknown order parameter");
2983        }
2984
2985        my @list = git_get_projects_list($project);
2986        if (!@list) {
2987                die_error(undef, "No forks found");
2988        }
2989
2990        git_header_html();
2991        git_print_page_nav('','');
2992        git_print_header_div('summary', "$project forks");
2993        git_project_list_body(\@list, $order);
2994        git_footer_html();
2995}
2996
2997sub git_project_index {
2998        my @projects = git_get_projects_list($project);
2999
3000        print $cgi->header(
3001                -type => 'text/plain',
3002                -charset => 'utf-8',
3003                -content_disposition => 'inline; filename="index.aux"');
3004
3005        foreach my $pr (@projects) {
3006                if (!exists $pr->{'owner'}) {
3007                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}");
3008                }
3009
3010                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
3011                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
3012                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3013                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
3014                $path  =~ s/ /\+/g;
3015                $owner =~ s/ /\+/g;
3016
3017                print "$path $owner\n";
3018        }
3019}
3020
3021sub git_summary {
3022        my $descr = git_get_project_description($project) || "none";
3023        my %co = parse_commit("HEAD");
3024        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3025        my $head = $co{'id'};
3026
3027        my $owner = git_get_project_owner($project);
3028
3029        my $refs = git_get_references();
3030        # These get_*_list functions return one more to allow us to see if
3031        # there are more ...
3032        my @taglist  = git_get_tags_list(16);
3033        my @headlist = git_get_heads_list(16);
3034        my @forklist;
3035        my ($check_forks) = gitweb_check_feature('forks');
3036
3037        if ($check_forks) {
3038                @forklist = git_get_projects_list($project);
3039        }
3040
3041        git_header_html();
3042        git_print_page_nav('summary','', $head);
3043
3044        print "<div class=\"title\">&nbsp;</div>\n";
3045        print "<table cellspacing=\"0\">\n" .
3046              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
3047              "<tr><td>owner</td><td>$owner</td></tr>\n" .
3048              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
3049        # use per project git URL list in $projectroot/$project/cloneurl
3050        # or make project git URL from git base URL and project name
3051        my $url_tag = "URL";
3052        my @url_list = git_get_project_url_list($project);
3053        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
3054        foreach my $git_url (@url_list) {
3055                next unless $git_url;
3056                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
3057                $url_tag = "";
3058        }
3059        print "</table>\n";
3060
3061        if (-s "$projectroot/$project/README.html") {
3062                if (open my $fd, "$projectroot/$project/README.html") {
3063                        print "<div class=\"title\">readme</div>\n";
3064                        print $_ while (<$fd>);
3065                        close $fd;
3066                }
3067        }
3068
3069        # we need to request one more than 16 (0..15) to check if
3070        # those 16 are all
3071        my @commitlist = parse_commits($head, 17);
3072        git_print_header_div('shortlog');
3073        git_shortlog_body(\@commitlist, 0, 15, $refs,
3074                          $#commitlist <=  15 ? undef :
3075                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
3076
3077        if (@taglist) {
3078                git_print_header_div('tags');
3079                git_tags_body(\@taglist, 0, 15,
3080                              $#taglist <=  15 ? undef :
3081                              $cgi->a({-href => href(action=>"tags")}, "..."));
3082        }
3083
3084        if (@headlist) {
3085                git_print_header_div('heads');
3086                git_heads_body(\@headlist, $head, 0, 15,
3087                               $#headlist <= 15 ? undef :
3088                               $cgi->a({-href => href(action=>"heads")}, "..."));
3089        }
3090
3091        if (@forklist) {
3092                git_print_header_div('forks');
3093                git_project_list_body(\@forklist, undef, 0, 15,
3094                                      $#forklist <= 15 ? undef :
3095                                      $cgi->a({-href => href(action=>"forks")}, "..."),
3096                                      'noheader');
3097        }
3098
3099        git_footer_html();
3100}
3101
3102sub git_tag {
3103        my $head = git_get_head_hash($project);
3104        git_header_html();
3105        git_print_page_nav('','', $head,undef,$head);
3106        my %tag = parse_tag($hash);
3107        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
3108        print "<div class=\"title_text\">\n" .
3109              "<table cellspacing=\"0\">\n" .
3110              "<tr>\n" .
3111              "<td>object</td>\n" .
3112              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3113                               $tag{'object'}) . "</td>\n" .
3114              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
3115                                              $tag{'type'}) . "</td>\n" .
3116              "</tr>\n";
3117        if (defined($tag{'author'})) {
3118                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
3119                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
3120                print "<tr><td></td><td>" . $ad{'rfc2822'} .
3121                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
3122                        "</td></tr>\n";
3123        }
3124        print "</table>\n\n" .
3125              "</div>\n";
3126        print "<div class=\"page_body\">";
3127        my $comment = $tag{'comment'};
3128        foreach my $line (@$comment) {
3129                chomp $line;
3130                print esc_html($line, -nbsp=>1) . "<br/>\n";
3131        }
3132        print "</div>\n";
3133        git_footer_html();
3134}
3135
3136sub git_blame2 {
3137        my $fd;
3138        my $ftype;
3139
3140        my ($have_blame) = gitweb_check_feature('blame');
3141        if (!$have_blame) {
3142                die_error('403 Permission denied', "Permission denied");
3143        }
3144        die_error('404 Not Found', "File name not defined") if (!$file_name);
3145        $hash_base ||= git_get_head_hash($project);
3146        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3147        my %co = parse_commit($hash_base)
3148                or die_error(undef, "Reading commit failed");
3149        if (!defined $hash) {
3150                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3151                        or die_error(undef, "Error looking up file");
3152        }
3153        $ftype = git_get_type($hash);
3154        if ($ftype !~ "blob") {
3155                die_error('400 Bad Request', "Object is not a blob");
3156        }
3157        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
3158              $file_name, $hash_base)
3159                or die_error(undef, "Open git-blame failed");
3160        git_header_html();
3161        my $formats_nav =
3162                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3163                        "blob") .
3164                " | " .
3165                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3166                        "history") .
3167                " | " .
3168                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3169                        "HEAD");
3170        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3171        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3172        git_print_page_path($file_name, $ftype, $hash_base);
3173        my @rev_color = (qw(light2 dark2));
3174        my $num_colors = scalar(@rev_color);
3175        my $current_color = 0;
3176        my $last_rev;
3177        print <<HTML;
3178<div class="page_body">
3179<table class="blame">
3180<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
3181HTML
3182        my %metainfo = ();
3183        while (1) {
3184                $_ = <$fd>;
3185                last unless defined $_;
3186                my ($full_rev, $orig_lineno, $lineno, $group_size) =
3187                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
3188                if (!exists $metainfo{$full_rev}) {
3189                        $metainfo{$full_rev} = {};
3190                }
3191                my $meta = $metainfo{$full_rev};
3192                while (<$fd>) {
3193                        last if (s/^\t//);
3194                        if (/^(\S+) (.*)$/) {
3195                                $meta->{$1} = $2;
3196                        }
3197                }
3198                my $data = $_;
3199                chomp $data;
3200                my $rev = substr($full_rev, 0, 8);
3201                my $author = $meta->{'author'};
3202                my %date = parse_date($meta->{'author-time'},
3203                                      $meta->{'author-tz'});
3204                my $date = $date{'iso-tz'};
3205                if ($group_size) {
3206                        $current_color = ++$current_color % $num_colors;
3207                }
3208                print "<tr class=\"$rev_color[$current_color]\">\n";
3209                if ($group_size) {
3210                        print "<td class=\"sha1\"";
3211                        print " title=\"". esc_html($author) . ", $date\"";
3212                        print " rowspan=\"$group_size\"" if ($group_size > 1);
3213                        print ">";
3214                        print $cgi->a({-href => href(action=>"commit",
3215                                                     hash=>$full_rev,
3216                                                     file_name=>$file_name)},
3217                                      esc_html($rev));
3218                        print "</td>\n";
3219                }
3220                open (my $dd, "-|", git_cmd(), "rev-parse", "$full_rev^")
3221                        or die_error(undef, "Open git-rev-parse failed");
3222                my $parent_commit = <$dd>;
3223                close $dd;
3224                chomp($parent_commit);
3225                my $blamed = href(action => 'blame',
3226                                  file_name => $meta->{'filename'},
3227                                  hash_base => $parent_commit);
3228                print "<td class=\"linenr\">";
3229                print $cgi->a({ -href => "$blamed#l$orig_lineno",
3230                                -id => "l$lineno",
3231                                -class => "linenr" },
3232                              esc_html($lineno));
3233                print "</td>";
3234                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
3235                print "</tr>\n";
3236        }
3237        print "</table>\n";
3238        print "</div>";
3239        close $fd
3240                or print "Reading blob failed\n";
3241        git_footer_html();
3242}
3243
3244sub git_blame {
3245        my $fd;
3246
3247        my ($have_blame) = gitweb_check_feature('blame');
3248        if (!$have_blame) {
3249                die_error('403 Permission denied', "Permission denied");
3250        }
3251        die_error('404 Not Found', "File name not defined") if (!$file_name);
3252        $hash_base ||= git_get_head_hash($project);
3253        die_error(undef, "Couldn't find base commit") unless ($hash_base);
3254        my %co = parse_commit($hash_base)
3255                or die_error(undef, "Reading commit failed");
3256        if (!defined $hash) {
3257                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
3258                        or die_error(undef, "Error lookup file");
3259        }
3260        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
3261                or die_error(undef, "Open git-annotate failed");
3262        git_header_html();
3263        my $formats_nav =
3264                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3265                        "blob") .
3266                " | " .
3267                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
3268                        "history") .
3269                " | " .
3270                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
3271                        "HEAD");
3272        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3273        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3274        git_print_page_path($file_name, 'blob', $hash_base);
3275        print "<div class=\"page_body\">\n";
3276        print <<HTML;
3277<table class="blame">
3278  <tr>
3279    <th>Commit</th>
3280    <th>Age</th>
3281    <th>Author</th>
3282    <th>Line</th>
3283    <th>Data</th>
3284  </tr>
3285HTML
3286        my @line_class = (qw(light dark));
3287        my $line_class_len = scalar (@line_class);
3288        my $line_class_num = $#line_class;
3289        while (my $line = <$fd>) {
3290                my $long_rev;
3291                my $short_rev;
3292                my $author;
3293                my $time;
3294                my $lineno;
3295                my $data;
3296                my $age;
3297                my $age_str;
3298                my $age_class;
3299
3300                chomp $line;
3301                $line_class_num = ($line_class_num + 1) % $line_class_len;
3302
3303                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
3304                        $long_rev = $1;
3305                        $author   = $2;
3306                        $time     = $3;
3307                        $lineno   = $4;
3308                        $data     = $5;
3309                } else {
3310                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
3311                        next;
3312                }
3313                $short_rev  = substr ($long_rev, 0, 8);
3314                $age        = time () - $time;
3315                $age_str    = age_string ($age);
3316                $age_str    =~ s/ /&nbsp;/g;
3317                $age_class  = age_class($age);
3318                $author     = esc_html ($author);
3319                $author     =~ s/ /&nbsp;/g;
3320
3321                $data = untabify($data);
3322                $data = esc_html ($data);
3323
3324                print <<HTML;
3325  <tr class="$line_class[$line_class_num]">
3326    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
3327    <td class="$age_class">$age_str</td>
3328    <td>$author</td>
3329    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
3330    <td class="pre">$data</td>
3331  </tr>
3332HTML
3333        } # while (my $line = <$fd>)
3334        print "</table>\n\n";
3335        close $fd
3336                or print "Reading blob failed.\n";
3337        print "</div>";
3338        git_footer_html();
3339}
3340
3341sub git_tags {
3342        my $head = git_get_head_hash($project);
3343        git_header_html();
3344        git_print_page_nav('','', $head,undef,$head);
3345        git_print_header_div('summary', $project);
3346
3347        my @tagslist = git_get_tags_list();
3348        if (@tagslist) {
3349                git_tags_body(\@tagslist);
3350        }
3351        git_footer_html();
3352}
3353
3354sub git_heads {
3355        my $head = git_get_head_hash($project);
3356        git_header_html();
3357        git_print_page_nav('','', $head,undef,$head);
3358        git_print_header_div('summary', $project);
3359
3360        my @headslist = git_get_heads_list();
3361        if (@headslist) {
3362                git_heads_body(\@headslist, $head);
3363        }
3364        git_footer_html();
3365}
3366
3367sub git_blob_plain {
3368        my $expires;
3369
3370        if (!defined $hash) {
3371                if (defined $file_name) {
3372                        my $base = $hash_base || git_get_head_hash($project);
3373                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3374                                or die_error(undef, "Error lookup file");
3375                } else {
3376                        die_error(undef, "No file name defined");
3377                }
3378        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3379                # blobs defined by non-textual hash id's can be cached
3380                $expires = "+1d";
3381        }
3382
3383        my $type = shift;
3384        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3385                or die_error(undef, "Couldn't cat $file_name, $hash");
3386
3387        $type ||= blob_mimetype($fd, $file_name);
3388
3389        # save as filename, even when no $file_name is given
3390        my $save_as = "$hash";
3391        if (defined $file_name) {
3392                $save_as = $file_name;
3393        } elsif ($type =~ m/^text\//) {
3394                $save_as .= '.txt';
3395        }
3396
3397        print $cgi->header(
3398                -type => "$type",
3399                -expires=>$expires,
3400                -content_disposition => 'inline; filename="' . "$save_as" . '"');
3401        undef $/;
3402        binmode STDOUT, ':raw';
3403        print <$fd>;
3404        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3405        $/ = "\n";
3406        close $fd;
3407}
3408
3409sub git_blob {
3410        my $expires;
3411
3412        if (!defined $hash) {
3413                if (defined $file_name) {
3414                        my $base = $hash_base || git_get_head_hash($project);
3415                        $hash = git_get_hash_by_path($base, $file_name, "blob")
3416                                or die_error(undef, "Error lookup file");
3417                } else {
3418                        die_error(undef, "No file name defined");
3419                }
3420        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3421                # blobs defined by non-textual hash id's can be cached
3422                $expires = "+1d";
3423        }
3424
3425        my ($have_blame) = gitweb_check_feature('blame');
3426        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
3427                or die_error(undef, "Couldn't cat $file_name, $hash");
3428        my $mimetype = blob_mimetype($fd, $file_name);
3429        if ($mimetype !~ m!^(?:text/|image/(?:gif|png|jpeg)$)!) {
3430                close $fd;
3431                return git_blob_plain($mimetype);
3432        }
3433        # we can have blame only for text/* mimetype
3434        $have_blame &&= ($mimetype =~ m!^text/!);
3435
3436        git_header_html(undef, $expires);
3437        my $formats_nav = '';
3438        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3439                if (defined $file_name) {
3440                        if ($have_blame) {
3441                                $formats_nav .=
3442                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3443                                                               hash=>$hash, file_name=>$file_name)},
3444                                                "blame") .
3445                                        " | ";
3446                        }
3447                        $formats_nav .=
3448                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3449                                                       hash=>$hash, file_name=>$file_name)},
3450                                        "history") .
3451                                " | " .
3452                                $cgi->a({-href => href(action=>"blob_plain",
3453                                                       hash=>$hash, file_name=>$file_name)},
3454                                        "raw") .
3455                                " | " .
3456                                $cgi->a({-href => href(action=>"blob",
3457                                                       hash_base=>"HEAD", file_name=>$file_name)},
3458                                        "HEAD");
3459                } else {
3460                        $formats_nav .=
3461                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3462                }
3463                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3464                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3465        } else {
3466                print "<div class=\"page_nav\">\n" .
3467                      "<br/><br/></div>\n" .
3468                      "<div class=\"title\">$hash</div>\n";
3469        }
3470        git_print_page_path($file_name, "blob", $hash_base);
3471        print "<div class=\"page_body\">\n";
3472        if ($mimetype =~ m!^text/!) {
3473                my $nr;
3474                while (my $line = <$fd>) {
3475                        chomp $line;
3476                        $nr++;
3477                        $line = untabify($line);
3478                        printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3479                               $nr, $nr, $nr, esc_html($line, -nbsp=>1);
3480                }
3481        } elsif ($mimetype =~ m!^image/!) {
3482                print qq!<img type="$mimetype"!;
3483                if ($file_name) {
3484                        print qq! alt="$file_name" title="$file_name"!;
3485                }
3486                print qq! src="! .
3487                      href(action=>"blob_plain", hash=>$hash,
3488                           hash_base=>$hash_base, file_name=>$file_name) .
3489                      qq!" />\n!;
3490        }
3491        close $fd
3492                or print "Reading blob failed.\n";
3493        print "</div>";
3494        git_footer_html();
3495}
3496
3497sub git_tree {
3498        my $have_snapshot = gitweb_have_snapshot();
3499
3500        if (!defined $hash_base) {
3501                $hash_base = "HEAD";
3502        }
3503        if (!defined $hash) {
3504                if (defined $file_name) {
3505                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3506                } else {
3507                        $hash = $hash_base;
3508                }
3509        }
3510        $/ = "\0";
3511        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3512                or die_error(undef, "Open git-ls-tree failed");
3513        my @entries = map { chomp; $_ } <$fd>;
3514        close $fd or die_error(undef, "Reading tree failed");
3515        $/ = "\n";
3516
3517        my $refs = git_get_references();
3518        my $ref = format_ref_marker($refs, $hash_base);
3519        git_header_html();
3520        my $basedir = '';
3521        my ($have_blame) = gitweb_check_feature('blame');
3522        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3523                my @views_nav = ();
3524                if (defined $file_name) {
3525                        push @views_nav,
3526                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3527                                                       hash=>$hash, file_name=>$file_name)},
3528                                        "history"),
3529                                $cgi->a({-href => href(action=>"tree",
3530                                                       hash_base=>"HEAD", file_name=>$file_name)},
3531                                        "HEAD"),
3532                }
3533                if ($have_snapshot) {
3534                        # FIXME: Should be available when we have no hash base as well.
3535                        push @views_nav,
3536                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3537                                        "snapshot");
3538                }
3539                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3540                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3541        } else {
3542                undef $hash_base;
3543                print "<div class=\"page_nav\">\n";
3544                print "<br/><br/></div>\n";
3545                print "<div class=\"title\">$hash</div>\n";
3546        }
3547        if (defined $file_name) {
3548                $basedir = $file_name;
3549                if ($basedir ne '' && substr($basedir, -1) ne '/') {
3550                        $basedir .= '/';
3551                }
3552        }
3553        git_print_page_path($file_name, 'tree', $hash_base);
3554        print "<div class=\"page_body\">\n";
3555        print "<table cellspacing=\"0\">\n";
3556        my $alternate = 1;
3557        # '..' (top directory) link if possible
3558        if (defined $hash_base &&
3559            defined $file_name && $file_name =~ m![^/]+$!) {
3560                if ($alternate) {
3561                        print "<tr class=\"dark\">\n";
3562                } else {
3563                        print "<tr class=\"light\">\n";
3564                }
3565                $alternate ^= 1;
3566
3567                my $up = $file_name;
3568                $up =~ s!/?[^/]+$!!;
3569                undef $up unless $up;
3570                # based on git_print_tree_entry
3571                print '<td class="mode">' . mode_str('040000') . "</td>\n";
3572                print '<td class="list">';
3573                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3574                                             file_name=>$up)},
3575                              "..");
3576                print "</td>\n";
3577                print "<td class=\"link\"></td>\n";
3578
3579                print "</tr>\n";
3580        }
3581        foreach my $line (@entries) {
3582                my %t = parse_ls_tree_line($line, -z => 1);
3583
3584                if ($alternate) {
3585                        print "<tr class=\"dark\">\n";
3586                } else {
3587                        print "<tr class=\"light\">\n";
3588                }
3589                $alternate ^= 1;
3590
3591                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3592
3593                print "</tr>\n";
3594        }
3595        print "</table>\n" .
3596              "</div>";
3597        git_footer_html();
3598}
3599
3600sub git_snapshot {
3601        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3602        my $have_snapshot = (defined $ctype && defined $suffix);
3603        if (!$have_snapshot) {
3604                die_error('403 Permission denied', "Permission denied");
3605        }
3606
3607        if (!defined $hash) {
3608                $hash = git_get_head_hash($project);
3609        }
3610
3611        my $filename = decode_utf8(basename($project)) . "-$hash.tar.$suffix";
3612
3613        print $cgi->header(
3614                -type => "application/$ctype",
3615                -content_disposition => 'inline; filename="' . "$filename" . '"',
3616                -status => '200 OK');
3617
3618        my $git = git_cmd_str();
3619        my $name = $project;
3620        $name =~ s/\047/\047\\\047\047/g;
3621        open my $fd, "-|",
3622        "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3623                or die_error(undef, "Execute git-tar-tree failed");
3624        binmode STDOUT, ':raw';
3625        print <$fd>;
3626        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3627        close $fd;
3628
3629}
3630
3631sub git_log {
3632        my $head = git_get_head_hash($project);
3633        if (!defined $hash) {
3634                $hash = $head;
3635        }
3636        if (!defined $page) {
3637                $page = 0;
3638        }
3639        my $refs = git_get_references();
3640
3641        my @commitlist = parse_commits($hash, 101, (100 * $page));
3642
3643        my $paging_nav = format_paging_nav('log', $hash, $head, $page, (100 * ($page+1)));
3644
3645        git_header_html();
3646        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3647
3648        if (!@commitlist) {
3649                my %co = parse_commit($hash);
3650
3651                git_print_header_div('summary', $project);
3652                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3653        }
3654        my $to = ($#commitlist >= 99) ? (99) : ($#commitlist);
3655        for (my $i = 0; $i <= $to; $i++) {
3656                my %co = %{$commitlist[$i]};
3657                next if !%co;
3658                my $commit = $co{'id'};
3659                my $ref = format_ref_marker($refs, $commit);
3660                my %ad = parse_date($co{'author_epoch'});
3661                git_print_header_div('commit',
3662                               "<span class=\"age\">$co{'age_string'}</span>" .
3663                               esc_html($co{'title'}) . $ref,
3664                               $commit);
3665                print "<div class=\"title_text\">\n" .
3666                      "<div class=\"log_link\">\n" .
3667                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3668                      " | " .
3669                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3670                      " | " .
3671                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3672                      "<br/>\n" .
3673                      "</div>\n" .
3674                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3675                      "</div>\n";
3676
3677                print "<div class=\"log_body\">\n";
3678                git_print_log($co{'comment'}, -final_empty_line=> 1);
3679                print "</div>\n";
3680        }
3681        if ($#commitlist >= 100) {
3682                print "<div class=\"page_nav\">\n";
3683                print $cgi->a({-href => href(action=>"log", hash=>$hash, page=>$page+1),
3684                               -accesskey => "n", -title => "Alt-n"}, "next");
3685                print "</div>\n";
3686        }
3687        git_footer_html();
3688}
3689
3690sub git_commit {
3691        $hash ||= $hash_base || "HEAD";
3692        my %co = parse_commit($hash);
3693        if (!%co) {
3694                die_error(undef, "Unknown commit object");
3695        }
3696        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3697        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3698
3699        my $parent  = $co{'parent'};
3700        my $parents = $co{'parents'}; # listref
3701
3702        # we need to prepare $formats_nav before any parameter munging
3703        my $formats_nav;
3704        if (!defined $parent) {
3705                # --root commitdiff
3706                $formats_nav .= '(initial)';
3707        } elsif (@$parents == 1) {
3708                # single parent commit
3709                $formats_nav .=
3710                        '(parent: ' .
3711                        $cgi->a({-href => href(action=>"commit",
3712                                               hash=>$parent)},
3713                                esc_html(substr($parent, 0, 7))) .
3714                        ')';
3715        } else {
3716                # merge commit
3717                $formats_nav .=
3718                        '(merge: ' .
3719                        join(' ', map {
3720                                $cgi->a({-href => href(action=>"commit",
3721                                                       hash=>$_)},
3722                                        esc_html(substr($_, 0, 7)));
3723                        } @$parents ) .
3724                        ')';
3725        }
3726
3727        if (!defined $parent) {
3728                $parent = "--root";
3729        }
3730        my @difftree;
3731        if (@$parents <= 1) {
3732                # difftree output is not printed for merges
3733                open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
3734                        @diff_opts, $parent, $hash, "--"
3735                                or die_error(undef, "Open git-diff-tree failed");
3736                @difftree = map { chomp; $_ } <$fd>;
3737                close $fd or die_error(undef, "Reading git-diff-tree failed");
3738        }
3739
3740        # non-textual hash id's can be cached
3741        my $expires;
3742        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3743                $expires = "+1d";
3744        }
3745        my $refs = git_get_references();
3746        my $ref = format_ref_marker($refs, $co{'id'});
3747
3748        my $have_snapshot = gitweb_have_snapshot();
3749
3750        git_header_html(undef, $expires);
3751        git_print_page_nav('commit', '',
3752                           $hash, $co{'tree'}, $hash,
3753                           $formats_nav);
3754
3755        if (defined $co{'parent'}) {
3756                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3757        } else {
3758                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3759        }
3760        print "<div class=\"title_text\">\n" .
3761              "<table cellspacing=\"0\">\n";
3762        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3763              "<tr>" .
3764              "<td></td><td> $ad{'rfc2822'}";
3765        if ($ad{'hour_local'} < 6) {
3766                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3767                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3768        } else {
3769                printf(" (%02d:%02d %s)",
3770                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3771        }
3772        print "</td>" .
3773              "</tr>\n";
3774        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3775        print "<tr><td></td><td> $cd{'rfc2822'}" .
3776              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3777              "</td></tr>\n";
3778        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3779        print "<tr>" .
3780              "<td>tree</td>" .
3781              "<td class=\"sha1\">" .
3782              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3783                       class => "list"}, $co{'tree'}) .
3784              "</td>" .
3785              "<td class=\"link\">" .
3786              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3787                      "tree");
3788        if ($have_snapshot) {
3789                print " | " .
3790                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3791        }
3792        print "</td>" .
3793              "</tr>\n";
3794
3795        foreach my $par (@$parents) {
3796                print "<tr>" .
3797                      "<td>parent</td>" .
3798                      "<td class=\"sha1\">" .
3799                      $cgi->a({-href => href(action=>"commit", hash=>$par),
3800                               class => "list"}, $par) .
3801                      "</td>" .
3802                      "<td class=\"link\">" .
3803                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3804                      " | " .
3805                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3806                      "</td>" .
3807                      "</tr>\n";
3808        }
3809        print "</table>".
3810              "</div>\n";
3811
3812        print "<div class=\"page_body\">\n";
3813        git_print_log($co{'comment'});
3814        print "</div>\n";
3815
3816        if (@$parents <= 1) {
3817                # do not output difftree/whatchanged for merges
3818                git_difftree_body(\@difftree, $hash, $parent);
3819        }
3820
3821        git_footer_html();
3822}
3823
3824sub git_object {
3825        # object is defined by:
3826        # - hash or hash_base alone
3827        # - hash_base and file_name
3828        my $type;
3829
3830        # - hash or hash_base alone
3831        if ($hash || ($hash_base && !defined $file_name)) {
3832                my $object_id = $hash || $hash_base;
3833
3834                my $git_command = git_cmd_str();
3835                open my $fd, "-|", "$git_command cat-file -t $object_id 2>/dev/null"
3836                        or die_error('404 Not Found', "Object does not exist");
3837                $type = <$fd>;
3838                chomp $type;
3839                close $fd
3840                        or die_error('404 Not Found', "Object does not exist");
3841
3842        # - hash_base and file_name
3843        } elsif ($hash_base && defined $file_name) {
3844                $file_name =~ s,/+$,,;
3845
3846                system(git_cmd(), "cat-file", '-e', $hash_base) == 0
3847                        or die_error('404 Not Found', "Base object does not exist");
3848
3849                # here errors should not hapen
3850                open my $fd, "-|", git_cmd(), "ls-tree", $hash_base, "--", $file_name
3851                        or die_error(undef, "Open git-ls-tree failed");
3852                my $line = <$fd>;
3853                close $fd;
3854
3855                #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
3856                unless ($line && $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/) {
3857                        die_error('404 Not Found', "File or directory for given base does not exist");
3858                }
3859                $type = $2;
3860                $hash = $3;
3861        } else {
3862                die_error('404 Not Found', "Not enough information to find object");
3863        }
3864
3865        print $cgi->redirect(-uri => href(action=>$type, -full=>1,
3866                                          hash=>$hash, hash_base=>$hash_base,
3867                                          file_name=>$file_name),
3868                             -status => '302 Found');
3869}
3870
3871sub git_blobdiff {
3872        my $format = shift || 'html';
3873
3874        my $fd;
3875        my @difftree;
3876        my %diffinfo;
3877        my $expires;
3878
3879        # preparing $fd and %diffinfo for git_patchset_body
3880        # new style URI
3881        if (defined $hash_base && defined $hash_parent_base) {
3882                if (defined $file_name) {
3883                        # read raw output
3884                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3885                                $hash_parent_base, $hash_base,
3886                                "--", (defined $file_parent ? $file_parent : ()), $file_name
3887                                or die_error(undef, "Open git-diff-tree failed");
3888                        @difftree = map { chomp; $_ } <$fd>;
3889                        close $fd
3890                                or die_error(undef, "Reading git-diff-tree failed");
3891                        @difftree
3892                                or die_error('404 Not Found', "Blob diff not found");
3893
3894                } elsif (defined $hash &&
3895                         $hash =~ /[0-9a-fA-F]{40}/) {
3896                        # try to find filename from $hash
3897
3898                        # read filtered raw output
3899                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3900                                $hash_parent_base, $hash_base, "--"
3901                                or die_error(undef, "Open git-diff-tree failed");
3902                        @difftree =
3903                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3904                                # $hash == to_id
3905                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3906                                map { chomp; $_ } <$fd>;
3907                        close $fd
3908                                or die_error(undef, "Reading git-diff-tree failed");
3909                        @difftree
3910                                or die_error('404 Not Found', "Blob diff not found");
3911
3912                } else {
3913                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3914                }
3915
3916                if (@difftree > 1) {
3917                        die_error('404 Not Found', "Ambiguous blob diff specification");
3918                }
3919
3920                %diffinfo = parse_difftree_raw_line($difftree[0]);
3921                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3922                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3923
3924                $hash_parent ||= $diffinfo{'from_id'};
3925                $hash        ||= $diffinfo{'to_id'};
3926
3927                # non-textual hash id's can be cached
3928                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3929                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3930                        $expires = '+1d';
3931                }
3932
3933                # open patch output
3934                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3935                        '-p', ($format eq 'html' ? "--full-index" : ()),
3936                        $hash_parent_base, $hash_base,
3937                        "--", (defined $file_parent ? $file_parent : ()), $file_name
3938                        or die_error(undef, "Open git-diff-tree failed");
3939        }
3940
3941        # old/legacy style URI
3942        if (!%diffinfo && # if new style URI failed
3943            defined $hash && defined $hash_parent) {
3944                # fake git-diff-tree raw output
3945                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3946                $diffinfo{'from_id'} = $hash_parent;
3947                $diffinfo{'to_id'}   = $hash;
3948                if (defined $file_name) {
3949                        if (defined $file_parent) {
3950                                $diffinfo{'status'} = '2';
3951                                $diffinfo{'from_file'} = $file_parent;
3952                                $diffinfo{'to_file'}   = $file_name;
3953                        } else { # assume not renamed
3954                                $diffinfo{'status'} = '1';
3955                                $diffinfo{'from_file'} = $file_name;
3956                                $diffinfo{'to_file'}   = $file_name;
3957                        }
3958                } else { # no filename given
3959                        $diffinfo{'status'} = '2';
3960                        $diffinfo{'from_file'} = $hash_parent;
3961                        $diffinfo{'to_file'}   = $hash;
3962                }
3963
3964                # non-textual hash id's can be cached
3965                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3966                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3967                        $expires = '+1d';
3968                }
3969
3970                # open patch output
3971                open $fd, "-|", git_cmd(), "diff", @diff_opts,
3972                        '-p', ($format eq 'html' ? "--full-index" : ()),
3973                        $hash_parent, $hash, "--"
3974                        or die_error(undef, "Open git-diff failed");
3975        } else  {
3976                die_error('404 Not Found', "Missing one of the blob diff parameters")
3977                        unless %diffinfo;
3978        }
3979
3980        # header
3981        if ($format eq 'html') {
3982                my $formats_nav =
3983                        $cgi->a({-href => href(action=>"blobdiff_plain",
3984                                               hash=>$hash, hash_parent=>$hash_parent,
3985                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3986                                               file_name=>$file_name, file_parent=>$file_parent)},
3987                                "raw");
3988                git_header_html(undef, $expires);
3989                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3990                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3991                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3992                } else {
3993                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3994                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3995                }
3996                if (defined $file_name) {
3997                        git_print_page_path($file_name, "blob", $hash_base);
3998                } else {
3999                        print "<div class=\"page_path\"></div>\n";
4000                }
4001
4002        } elsif ($format eq 'plain') {
4003                print $cgi->header(
4004                        -type => 'text/plain',
4005                        -charset => 'utf-8',
4006                        -expires => $expires,
4007                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
4008
4009                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4010
4011        } else {
4012                die_error(undef, "Unknown blobdiff format");
4013        }
4014
4015        # patch
4016        if ($format eq 'html') {
4017                print "<div class=\"page_body\">\n";
4018
4019                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
4020                close $fd;
4021
4022                print "</div>\n"; # class="page_body"
4023                git_footer_html();
4024
4025        } else {
4026                while (my $line = <$fd>) {
4027                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_path($diffinfo{'from_file'})!eg;
4028                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_path($diffinfo{'to_file'})!eg;
4029
4030                        print $line;
4031
4032                        last if $line =~ m!^\+\+\+!;
4033                }
4034                local $/ = undef;
4035                print <$fd>;
4036                close $fd;
4037        }
4038}
4039
4040sub git_blobdiff_plain {
4041        git_blobdiff('plain');
4042}
4043
4044sub git_commitdiff {
4045        my $format = shift || 'html';
4046        $hash ||= $hash_base || "HEAD";
4047        my %co = parse_commit($hash);
4048        if (!%co) {
4049                die_error(undef, "Unknown commit object");
4050        }
4051
4052        # we need to prepare $formats_nav before any parameter munging
4053        my $formats_nav;
4054        if ($format eq 'html') {
4055                $formats_nav =
4056                        $cgi->a({-href => href(action=>"commitdiff_plain",
4057                                               hash=>$hash, hash_parent=>$hash_parent)},
4058                                "raw");
4059
4060                if (defined $hash_parent) {
4061                        # commitdiff with two commits given
4062                        my $hash_parent_short = $hash_parent;
4063                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
4064                                $hash_parent_short = substr($hash_parent, 0, 7);
4065                        }
4066                        $formats_nav .=
4067                                ' (from: ' .
4068                                $cgi->a({-href => href(action=>"commitdiff",
4069                                                       hash=>$hash_parent)},
4070                                        esc_html($hash_parent_short)) .
4071                                ')';
4072                } elsif (!$co{'parent'}) {
4073                        # --root commitdiff
4074                        $formats_nav .= ' (initial)';
4075                } elsif (scalar @{$co{'parents'}} == 1) {
4076                        # single parent commit
4077                        $formats_nav .=
4078                                ' (parent: ' .
4079                                $cgi->a({-href => href(action=>"commitdiff",
4080                                                       hash=>$co{'parent'})},
4081                                        esc_html(substr($co{'parent'}, 0, 7))) .
4082                                ')';
4083                } else {
4084                        # merge commit
4085                        $formats_nav .=
4086                                ' (merge: ' .
4087                                join(' ', map {
4088                                        $cgi->a({-href => href(action=>"commitdiff",
4089                                                               hash=>$_)},
4090                                                esc_html(substr($_, 0, 7)));
4091                                } @{$co{'parents'}} ) .
4092                                ')';
4093                }
4094        }
4095
4096        if (!defined $hash_parent) {
4097                $hash_parent = $co{'parent'} || '--root';
4098        }
4099
4100        # read commitdiff
4101        my $fd;
4102        my @difftree;
4103        if ($format eq 'html') {
4104                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4105                        "--no-commit-id", "--patch-with-raw", "--full-index",
4106                        $hash_parent, $hash, "--"
4107                        or die_error(undef, "Open git-diff-tree failed");
4108
4109                while (my $line = <$fd>) {
4110                        chomp $line;
4111                        # empty line ends raw part of diff-tree output
4112                        last unless $line;
4113                        push @difftree, $line;
4114                }
4115
4116        } elsif ($format eq 'plain') {
4117                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4118                        '-p', $hash_parent, $hash, "--"
4119                        or die_error(undef, "Open git-diff-tree failed");
4120
4121        } else {
4122                die_error(undef, "Unknown commitdiff format");
4123        }
4124
4125        # non-textual hash id's can be cached
4126        my $expires;
4127        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
4128                $expires = "+1d";
4129        }
4130
4131        # write commit message
4132        if ($format eq 'html') {
4133                my $refs = git_get_references();
4134                my $ref = format_ref_marker($refs, $co{'id'});
4135
4136                git_header_html(undef, $expires);
4137                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
4138                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
4139                git_print_authorship(\%co);
4140                print "<div class=\"page_body\">\n";
4141                if (@{$co{'comment'}} > 1) {
4142                        print "<div class=\"log\">\n";
4143                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
4144                        print "</div>\n"; # class="log"
4145                }
4146
4147        } elsif ($format eq 'plain') {
4148                my $refs = git_get_references("tags");
4149                my $tagname = git_get_rev_name_tags($hash);
4150                my $filename = basename($project) . "-$hash.patch";
4151
4152                print $cgi->header(
4153                        -type => 'text/plain',
4154                        -charset => 'utf-8',
4155                        -expires => $expires,
4156                        -content_disposition => 'inline; filename="' . "$filename" . '"');
4157                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
4158                print <<TEXT;
4159From: $co{'author'}
4160Date: $ad{'rfc2822'} ($ad{'tz_local'})
4161Subject: $co{'title'}
4162TEXT
4163                print "X-Git-Tag: $tagname\n" if $tagname;
4164                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
4165
4166                foreach my $line (@{$co{'comment'}}) {
4167                        print "$line\n";
4168                }
4169                print "---\n\n";
4170        }
4171
4172        # write patch
4173        if ($format eq 'html') {
4174                git_difftree_body(\@difftree, $hash, $hash_parent);
4175                print "<br/>\n";
4176
4177                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
4178                close $fd;
4179                print "</div>\n"; # class="page_body"
4180                git_footer_html();
4181
4182        } elsif ($format eq 'plain') {
4183                local $/ = undef;
4184                print <$fd>;
4185                close $fd
4186                        or print "Reading git-diff-tree failed\n";
4187        }
4188}
4189
4190sub git_commitdiff_plain {
4191        git_commitdiff('plain');
4192}
4193
4194sub git_history {
4195        if (!defined $hash_base) {
4196                $hash_base = git_get_head_hash($project);
4197        }
4198        if (!defined $page) {
4199                $page = 0;
4200        }
4201        my $ftype;
4202        my %co = parse_commit($hash_base);
4203        if (!%co) {
4204                die_error(undef, "Unknown commit object");
4205        }
4206
4207        my $refs = git_get_references();
4208        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
4209
4210        if (!defined $hash && defined $file_name) {
4211                $hash = git_get_hash_by_path($hash_base, $file_name);
4212        }
4213        if (defined $hash) {
4214                $ftype = git_get_type($hash);
4215        }
4216
4217        my @commitlist = parse_commits($hash_base, 101, (100 * $page), "--full-history", $file_name);
4218
4219        my $paging_nav = '';
4220        if ($page > 0) {
4221                $paging_nav .=
4222                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4223                                               file_name=>$file_name)},
4224                                "first");
4225                $paging_nav .= " &sdot; " .
4226                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4227                                               file_name=>$file_name, page=>$page-1),
4228                                 -accesskey => "p", -title => "Alt-p"}, "prev");
4229        } else {
4230                $paging_nav .= "first";
4231                $paging_nav .= " &sdot; prev";
4232        }
4233        if ($#commitlist >= 100) {
4234                $paging_nav .= " &sdot; " .
4235                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4236                                               file_name=>$file_name, page=>$page+1),
4237                                 -accesskey => "n", -title => "Alt-n"}, "next");
4238        } else {
4239                $paging_nav .= " &sdot; next";
4240        }
4241        my $next_link = '';
4242        if ($#commitlist >= 100) {
4243                $next_link =
4244                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
4245                                               file_name=>$file_name, page=>$page+1),
4246                                 -accesskey => "n", -title => "Alt-n"}, "next");
4247        }
4248
4249        git_header_html();
4250        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
4251        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
4252        git_print_page_path($file_name, $ftype, $hash_base);
4253
4254        git_history_body(\@commitlist, 0, 99,
4255                         $refs, $hash_base, $ftype, $next_link);
4256
4257        git_footer_html();
4258}
4259
4260sub git_search {
4261        my ($have_search) = gitweb_check_feature('search');
4262        if (!$have_search) {
4263                die_error('403 Permission denied', "Permission denied");
4264        }
4265        if (!defined $searchtext) {
4266                die_error(undef, "Text field empty");
4267        }
4268        if (!defined $hash) {
4269                $hash = git_get_head_hash($project);
4270        }
4271        my %co = parse_commit($hash);
4272        if (!%co) {
4273                die_error(undef, "Unknown commit object");
4274        }
4275        if (!defined $page) {
4276                $page = 0;
4277        }
4278
4279        $searchtype ||= 'commit';
4280        if ($searchtype eq 'pickaxe') {
4281                # pickaxe may take all resources of your box and run for several minutes
4282                # with every query - so decide by yourself how public you make this feature
4283                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4284                if (!$have_pickaxe) {
4285                        die_error('403 Permission denied', "Permission denied");
4286                }
4287        }
4288
4289        git_header_html();
4290
4291        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
4292                my $greptype;
4293                if ($searchtype eq 'commit') {
4294                        $greptype = "--grep=";
4295                } elsif ($searchtype eq 'author') {
4296                        $greptype = "--author=";
4297                } elsif ($searchtype eq 'committer') {
4298                        $greptype = "--committer=";
4299                }
4300                $greptype .= $searchtext;
4301                my @commitlist = parse_commits($hash, 101, (100 * $page), $greptype);
4302
4303                my $paging_nav = '';
4304                if ($page > 0) {
4305                        $paging_nav .=
4306                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4307                                                       searchtext=>$searchtext, searchtype=>$searchtype)},
4308                                        "first");
4309                        $paging_nav .= " &sdot; " .
4310                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4311                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4312                                                       page=>$page-1),
4313                                         -accesskey => "p", -title => "Alt-p"}, "prev");
4314                } else {
4315                        $paging_nav .= "first";
4316                        $paging_nav .= " &sdot; prev";
4317                }
4318                if ($#commitlist >= 100) {
4319                        $paging_nav .= " &sdot; " .
4320                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4321                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4322                                                       page=>$page+1),
4323                                         -accesskey => "n", -title => "Alt-n"}, "next");
4324                } else {
4325                        $paging_nav .= " &sdot; next";
4326                }
4327                my $next_link = '';
4328                if ($#commitlist >= 100) {
4329                        $next_link =
4330                                $cgi->a({-href => href(action=>"search", hash=>$hash,
4331                                                       searchtext=>$searchtext, searchtype=>$searchtype,
4332                                                       page=>$page+1),
4333                                         -accesskey => "n", -title => "Alt-n"}, "next");
4334                }
4335
4336                git_print_page_nav('','', $hash,$co{'tree'},$hash, $paging_nav);
4337                git_print_header_div('commit', esc_html($co{'title'}), $hash);
4338                git_search_grep_body(\@commitlist, 0, 99, $next_link);
4339        }
4340
4341        if ($searchtype eq 'pickaxe') {
4342                git_print_page_nav('','', $hash,$co{'tree'},$hash);
4343                git_print_header_div('commit', esc_html($co{'title'}), $hash);
4344
4345                print "<table cellspacing=\"0\">\n";
4346                my $alternate = 1;
4347                $/ = "\n";
4348                my $git_command = git_cmd_str();
4349                open my $fd, "-|", "$git_command rev-list $hash | " .
4350                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
4351                undef %co;
4352                my @files;
4353                while (my $line = <$fd>) {
4354                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
4355                                my %set;
4356                                $set{'file'} = $6;
4357                                $set{'from_id'} = $3;
4358                                $set{'to_id'} = $4;
4359                                $set{'id'} = $set{'to_id'};
4360                                if ($set{'id'} =~ m/0{40}/) {
4361                                        $set{'id'} = $set{'from_id'};
4362                                }
4363                                if ($set{'id'} =~ m/0{40}/) {
4364                                        next;
4365                                }
4366                                push @files, \%set;
4367                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
4368                                if (%co) {
4369                                        if ($alternate) {
4370                                                print "<tr class=\"dark\">\n";
4371                                        } else {
4372                                                print "<tr class=\"light\">\n";
4373                                        }
4374                                        $alternate ^= 1;
4375                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
4376                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
4377                                              "<td>" .
4378                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
4379                                                      -class => "list subject"},
4380                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
4381                                        while (my $setref = shift @files) {
4382                                                my %set = %$setref;
4383                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
4384                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
4385                                                              -class => "list"},
4386                                                              "<span class=\"match\">" . esc_path($set{'file'}) . "</span>") .
4387                                                      "<br/>\n";
4388                                        }
4389                                        print "</td>\n" .
4390                                              "<td class=\"link\">" .
4391                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
4392                                              " | " .
4393                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
4394                                        print "</td>\n" .
4395                                              "</tr>\n";
4396                                }
4397                                %co = parse_commit($1);
4398                        }
4399                }
4400                close $fd;
4401
4402                print "</table>\n";
4403        }
4404        git_footer_html();
4405}
4406
4407sub git_search_help {
4408        git_header_html();
4409        git_print_page_nav('','', $hash,$hash,$hash);
4410        print <<EOT;
4411<dl>
4412<dt><b>commit</b></dt>
4413<dd>The commit messages and authorship information will be scanned for the given string.</dd>
4414<dt><b>author</b></dt>
4415<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
4416<dt><b>committer</b></dt>
4417<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
4418EOT
4419        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
4420        if ($have_pickaxe) {
4421                print <<EOT;
4422<dt><b>pickaxe</b></dt>
4423<dd>All commits that caused the string to appear or disappear from any file (changes that
4424added, removed or "modified" the string) will be listed. This search can take a while and
4425takes a lot of strain on the server, so please use it wisely.</dd>
4426EOT
4427        }
4428        print "</dl>\n";
4429        git_footer_html();
4430}
4431
4432sub git_shortlog {
4433        my $head = git_get_head_hash($project);
4434        if (!defined $hash) {
4435                $hash = $head;
4436        }
4437        if (!defined $page) {
4438                $page = 0;
4439        }
4440        my $refs = git_get_references();
4441
4442        my @commitlist = parse_commits($hash, 101, (100 * $page));
4443
4444        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, (100 * ($page+1)));
4445        my $next_link = '';
4446        if ($#commitlist >= 100) {
4447                $next_link =
4448                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
4449                                 -accesskey => "n", -title => "Alt-n"}, "next");
4450        }
4451
4452        git_header_html();
4453        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
4454        git_print_header_div('summary', $project);
4455
4456        git_shortlog_body(\@commitlist, 0, 99, $refs, $next_link);
4457
4458        git_footer_html();
4459}
4460
4461## ......................................................................
4462## feeds (RSS, Atom; OPML)
4463
4464sub git_feed {
4465        my $format = shift || 'atom';
4466        my ($have_blame) = gitweb_check_feature('blame');
4467
4468        # Atom: http://www.atomenabled.org/developers/syndication/
4469        # RSS:  http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
4470        if ($format ne 'rss' && $format ne 'atom') {
4471                die_error(undef, "Unknown web feed format");
4472        }
4473
4474        # log/feed of current (HEAD) branch, log of given branch, history of file/directory
4475        my $head = $hash || 'HEAD';
4476        my @commitlist = parse_commits($head, 150);
4477
4478        my %latest_commit;
4479        my %latest_date;
4480        my $content_type = "application/$format+xml";
4481        if (defined $cgi->http('HTTP_ACCEPT') &&
4482                 $cgi->Accept('text/xml') > $cgi->Accept($content_type)) {
4483                # browser (feed reader) prefers text/xml
4484                $content_type = 'text/xml';
4485        }
4486        if (defined($commitlist[0])) {
4487                %latest_commit = %{$commitlist[0]};
4488                %latest_date   = parse_date($latest_commit{'author_epoch'});
4489                print $cgi->header(
4490                        -type => $content_type,
4491                        -charset => 'utf-8',
4492                        -last_modified => $latest_date{'rfc2822'});
4493        } else {
4494                print $cgi->header(
4495                        -type => $content_type,
4496                        -charset => 'utf-8');
4497        }
4498
4499        # Optimization: skip generating the body if client asks only
4500        # for Last-Modified date.
4501        return if ($cgi->request_method() eq 'HEAD');
4502
4503        # header variables
4504        my $title = "$site_name - $project/$action";
4505        my $feed_type = 'log';
4506        if (defined $hash) {
4507                $title .= " - '$hash'";
4508                $feed_type = 'branch log';
4509                if (defined $file_name) {
4510                        $title .= " :: $file_name";
4511                        $feed_type = 'history';
4512                }
4513        } elsif (defined $file_name) {
4514                $title .= " - $file_name";
4515                $feed_type = 'history';
4516        }
4517        $title .= " $feed_type";
4518        my $descr = git_get_project_description($project);
4519        if (defined $descr) {
4520                $descr = esc_html($descr);
4521        } else {
4522                $descr = "$project " .
4523                         ($format eq 'rss' ? 'RSS' : 'Atom') .
4524                         " feed";
4525        }
4526        my $owner = git_get_project_owner($project);
4527        $owner = esc_html($owner);
4528
4529        #header
4530        my $alt_url;
4531        if (defined $file_name) {
4532                $alt_url = href(-full=>1, action=>"history", hash=>$hash, file_name=>$file_name);
4533        } elsif (defined $hash) {
4534                $alt_url = href(-full=>1, action=>"log", hash=>$hash);
4535        } else {
4536                $alt_url = href(-full=>1, action=>"summary");
4537        }
4538        print qq!<?xml version="1.0" encoding="utf-8"?>\n!;
4539        if ($format eq 'rss') {
4540                print <<XML;
4541<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
4542<channel>
4543XML
4544                print "<title>$title</title>\n" .
4545                      "<link>$alt_url</link>\n" .
4546                      "<description>$descr</description>\n" .
4547                      "<language>en</language>\n";
4548        } elsif ($format eq 'atom') {
4549                print <<XML;
4550<feed xmlns="http://www.w3.org/2005/Atom">
4551XML
4552                print "<title>$title</title>\n" .
4553                      "<subtitle>$descr</subtitle>\n" .
4554                      '<link rel="alternate" type="text/html" href="' .
4555                      $alt_url . '" />' . "\n" .
4556                      '<link rel="self" type="' . $content_type . '" href="' .
4557                      $cgi->self_url() . '" />' . "\n" .
4558                      "<id>" . href(-full=>1) . "</id>\n" .
4559                      # use project owner for feed author
4560                      "<author><name>$owner</name></author>\n";
4561                if (defined $favicon) {
4562                        print "<icon>" . esc_url($favicon) . "</icon>\n";
4563                }
4564                if (defined $logo_url) {
4565                        # not twice as wide as tall: 72 x 27 pixels
4566                        print "<logo>" . esc_url($logo) . "</logo>\n";
4567                }
4568                if (! %latest_date) {
4569                        # dummy date to keep the feed valid until commits trickle in:
4570                        print "<updated>1970-01-01T00:00:00Z</updated>\n";
4571                } else {
4572                        print "<updated>$latest_date{'iso-8601'}</updated>\n";
4573                }
4574        }
4575
4576        # contents
4577        for (my $i = 0; $i <= $#commitlist; $i++) {
4578                my %co = %{$commitlist[$i]};
4579                my $commit = $co{'id'};
4580                # we read 150, we always show 30 and the ones more recent than 48 hours
4581                if (($i >= 20) && ((time - $co{'author_epoch'}) > 48*60*60)) {
4582                        last;
4583                }
4584                my %cd = parse_date($co{'author_epoch'});
4585
4586                # get list of changed files
4587                open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
4588                        $co{'parent'}, $co{'id'}, "--", (defined $file_name ? $file_name : ())
4589                        or next;
4590                my @difftree = map { chomp; $_ } <$fd>;
4591                close $fd
4592                        or next;
4593
4594                # print element (entry, item)
4595                my $co_url = href(-full=>1, action=>"commit", hash=>$commit);
4596                if ($format eq 'rss') {
4597                        print "<item>\n" .
4598                              "<title>" . esc_html($co{'title'}) . "</title>\n" .
4599                              "<author>" . esc_html($co{'author'}) . "</author>\n" .
4600                              "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
4601                              "<guid isPermaLink=\"true\">$co_url</guid>\n" .
4602                              "<link>$co_url</link>\n" .
4603                              "<description>" . esc_html($co{'title'}) . "</description>\n" .
4604                              "<content:encoded>" .
4605                              "<![CDATA[\n";
4606                } elsif ($format eq 'atom') {
4607                        print "<entry>\n" .
4608                              "<title type=\"html\">" . esc_html($co{'title'}) . "</title>\n" .
4609                              "<updated>$cd{'iso-8601'}</updated>\n" .
4610                              "<author>\n" .
4611                              "  <name>" . esc_html($co{'author_name'}) . "</name>\n";
4612                        if ($co{'author_email'}) {
4613                                print "  <email>" . esc_html($co{'author_email'}) . "</email>\n";
4614                        }
4615                        print "</author>\n" .
4616                              # use committer for contributor
4617                              "<contributor>\n" .
4618                              "  <name>" . esc_html($co{'committer_name'}) . "</name>\n";
4619                        if ($co{'committer_email'}) {
4620                                print "  <email>" . esc_html($co{'committer_email'}) . "</email>\n";
4621                        }
4622                        print "</contributor>\n" .
4623                              "<published>$cd{'iso-8601'}</published>\n" .
4624                              "<link rel=\"alternate\" type=\"text/html\" href=\"$co_url\" />\n" .
4625                              "<id>$co_url</id>\n" .
4626                              "<content type=\"xhtml\" xml:base=\"" . esc_url($my_url) . "\">\n" .
4627                              "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n";
4628                }
4629                my $comment = $co{'comment'};
4630                print "<pre>\n";
4631                foreach my $line (@$comment) {
4632                        $line = esc_html($line);
4633                        print "$line\n";
4634                }
4635                print "</pre><ul>\n";
4636                foreach my $difftree_line (@difftree) {
4637                        my %difftree = parse_difftree_raw_line($difftree_line);
4638                        next if !$difftree{'from_id'};
4639
4640                        my $file = $difftree{'file'} || $difftree{'to_file'};
4641
4642                        print "<li>" .
4643                              "[" .
4644                              $cgi->a({-href => href(-full=>1, action=>"blobdiff",
4645                                                     hash=>$difftree{'to_id'}, hash_parent=>$difftree{'from_id'},
4646                                                     hash_base=>$co{'id'}, hash_parent_base=>$co{'parent'},
4647                                                     file_name=>$file, file_parent=>$difftree{'from_file'}),
4648                                      -title => "diff"}, 'D');
4649                        if ($have_blame) {
4650                                print $cgi->a({-href => href(-full=>1, action=>"blame",
4651                                                             file_name=>$file, hash_base=>$commit),
4652                                              -title => "blame"}, 'B');
4653                        }
4654                        # if this is not a feed of a file history
4655                        if (!defined $file_name || $file_name ne $file) {
4656                                print $cgi->a({-href => href(-full=>1, action=>"history",
4657                                                             file_name=>$file, hash=>$commit),
4658                                              -title => "history"}, 'H');
4659                        }
4660                        $file = esc_path($file);
4661                        print "] ".
4662                              "$file</li>\n";
4663                }
4664                if ($format eq 'rss') {
4665                        print "</ul>]]>\n" .
4666                              "</content:encoded>\n" .
4667                              "</item>\n";
4668                } elsif ($format eq 'atom') {
4669                        print "</ul>\n</div>\n" .
4670                              "</content>\n" .
4671                              "</entry>\n";
4672                }
4673        }
4674
4675        # end of feed
4676        if ($format eq 'rss') {
4677                print "</channel>\n</rss>\n";
4678        }       elsif ($format eq 'atom') {
4679                print "</feed>\n";
4680        }
4681}
4682
4683sub git_rss {
4684        git_feed('rss');
4685}
4686
4687sub git_atom {
4688        git_feed('atom');
4689}
4690
4691sub git_opml {
4692        my @list = git_get_projects_list();
4693
4694        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4695        print <<XML;
4696<?xml version="1.0" encoding="utf-8"?>
4697<opml version="1.0">
4698<head>
4699  <title>$site_name OPML Export</title>
4700</head>
4701<body>
4702<outline text="git RSS feeds">
4703XML
4704
4705        foreach my $pr (@list) {
4706                my %proj = %$pr;
4707                my $head = git_get_head_hash($proj{'path'});
4708                if (!defined $head) {
4709                        next;
4710                }
4711                $git_dir = "$projectroot/$proj{'path'}";
4712                my %co = parse_commit($head);
4713                if (!%co) {
4714                        next;
4715                }
4716
4717                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
4718                my $rss  = "$my_url?p=$proj{'path'};a=rss";
4719                my $html = "$my_url?p=$proj{'path'};a=summary";
4720                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
4721        }
4722        print <<XML;
4723</outline>
4724</body>
4725</opml>
4726XML
4727}