gitweb / gitweb.perlon commit Merge branch 'jc/pickaxe' (24ad8e0)
   1#!/usr/bin/perl
   2
   3# gitweb - simple web interface to track changes in git repositories
   4#
   5# (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
   6# (C) 2005, Christian Gierke
   7#
   8# This program is licensed under the GPLv2
   9
  10use strict;
  11use warnings;
  12use CGI qw(:standard :escapeHTML -nosticky);
  13use CGI::Util qw(unescape);
  14use CGI::Carp qw(fatalsToBrowser);
  15use Encode;
  16use Fcntl ':mode';
  17use File::Find qw();
  18use File::Basename qw(basename);
  19binmode STDOUT, ':utf8';
  20
  21our $cgi = new CGI;
  22our $version = "++GIT_VERSION++";
  23our $my_url = $cgi->url();
  24our $my_uri = $cgi->url(-absolute => 1);
  25
  26# core git executable to use
  27# this can just be "git" if your webserver has a sensible PATH
  28our $GIT = "++GIT_BINDIR++/git";
  29
  30# absolute fs-path which will be prepended to the project path
  31#our $projectroot = "/pub/scm";
  32our $projectroot = "++GITWEB_PROJECTROOT++";
  33
  34# target of the home link on top of all pages
  35our $home_link = $my_uri || "/";
  36
  37# string of the home link on top of all pages
  38our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  39
  40# name of your site or organization to appear in page titles
  41# replace this with something more descriptive for clearer bookmarks
  42our $site_name = "++GITWEB_SITENAME++"
  43                 || ($ENV{'SERVER_NAME'} || "Untitled") . " Git";
  44
  45# filename of html text to include at top of each page
  46our $site_header = "++GITWEB_SITE_HEADER++";
  47# html text to include at home page
  48our $home_text = "++GITWEB_HOMETEXT++";
  49# filename of html text to include at bottom of each page
  50our $site_footer = "++GITWEB_SITE_FOOTER++";
  51
  52# URI of stylesheets
  53our @stylesheets = ("++GITWEB_CSS++");
  54# URI of a single stylesheet, which can be overridden in GITWEB_CONFIG.
  55our $stylesheet = undef;
  56# URI of GIT logo (72x27 size)
  57our $logo = "++GITWEB_LOGO++";
  58# URI of GIT favicon, assumed to be image/png type
  59our $favicon = "++GITWEB_FAVICON++";
  60
  61# URI and label (title) of GIT logo link
  62#our $logo_url = "http://www.kernel.org/pub/software/scm/git/docs/";
  63#our $logo_label = "git documentation";
  64our $logo_url = "http://git.or.cz/";
  65our $logo_label = "git homepage";
  66
  67# source of projects list
  68our $projects_list = "++GITWEB_LIST++";
  69
  70# show repository only if this file exists
  71# (only effective if this variable evaluates to true)
  72our $export_ok = "++GITWEB_EXPORT_OK++";
  73
  74# only allow viewing of repositories also shown on the overview page
  75our $strict_export = "++GITWEB_STRICT_EXPORT++";
  76
  77# list of git base URLs used for URL to where fetch project from,
  78# i.e. full URL is "$git_base_url/$project"
  79our @git_base_url_list = grep { $_ ne '' } ("++GITWEB_BASE_URL++");
  80
  81# default blob_plain mimetype and default charset for text/plain blob
  82our $default_blob_plain_mimetype = 'text/plain';
  83our $default_text_plain_charset  = undef;
  84
  85# file to use for guessing MIME types before trying /etc/mime.types
  86# (relative to the current git repository)
  87our $mimetypes_file = undef;
  88
  89# You define site-wide feature defaults here; override them with
  90# $GITWEB_CONFIG as necessary.
  91our %feature = (
  92        # feature => {
  93        #       'sub' => feature-sub (subroutine),
  94        #       'override' => allow-override (boolean),
  95        #       'default' => [ default options...] (array reference)}
  96        #
  97        # if feature is overridable (it means that allow-override has true value,
  98        # then feature-sub will be called with default options as parameters;
  99        # return value of feature-sub indicates if to enable specified feature
 100        #
 101        # use gitweb_check_feature(<feature>) to check if <feature> is enabled
 102
 103        # Enable the 'blame' blob view, showing the last commit that modified
 104        # each line in the file. This can be very CPU-intensive.
 105
 106        # To enable system wide have in $GITWEB_CONFIG
 107        # $feature{'blame'}{'default'} = [1];
 108        # To have project specific config enable override in $GITWEB_CONFIG
 109        # $feature{'blame'}{'override'} = 1;
 110        # and in project config gitweb.blame = 0|1;
 111        'blame' => {
 112                'sub' => \&feature_blame,
 113                'override' => 0,
 114                'default' => [0]},
 115
 116        # Enable the 'snapshot' link, providing a compressed tarball of any
 117        # tree. This can potentially generate high traffic if you have large
 118        # project.
 119
 120        # To disable system wide have in $GITWEB_CONFIG
 121        # $feature{'snapshot'}{'default'} = [undef];
 122        # To have project specific config enable override in $GITWEB_CONFIG
 123        # $feature{'blame'}{'override'} = 1;
 124        # and in project config gitweb.snapshot = none|gzip|bzip2;
 125        'snapshot' => {
 126                'sub' => \&feature_snapshot,
 127                'override' => 0,
 128                #         => [content-encoding, suffix, program]
 129                'default' => ['x-gzip', 'gz', 'gzip']},
 130
 131        # Enable the pickaxe search, which will list the commits that modified
 132        # a given string in a file. This can be practical and quite faster
 133        # alternative to 'blame', but still potentially CPU-intensive.
 134
 135        # To enable system wide have in $GITWEB_CONFIG
 136        # $feature{'pickaxe'}{'default'} = [1];
 137        # To have project specific config enable override in $GITWEB_CONFIG
 138        # $feature{'pickaxe'}{'override'} = 1;
 139        # and in project config gitweb.pickaxe = 0|1;
 140        'pickaxe' => {
 141                'sub' => \&feature_pickaxe,
 142                'override' => 0,
 143                'default' => [1]},
 144
 145        # Make gitweb use an alternative format of the URLs which can be
 146        # more readable and natural-looking: project name is embedded
 147        # directly in the path and the query string contains other
 148        # auxiliary information. All gitweb installations recognize
 149        # URL in either format; this configures in which formats gitweb
 150        # generates links.
 151
 152        # To enable system wide have in $GITWEB_CONFIG
 153        # $feature{'pathinfo'}{'default'} = [1];
 154        # Project specific override is not supported.
 155
 156        # Note that you will need to change the default location of CSS,
 157        # favicon, logo and possibly other files to an absolute URL. Also,
 158        # if gitweb.cgi serves as your indexfile, you will need to force
 159        # $my_uri to contain the script name in your $GITWEB_CONFIG.
 160        'pathinfo' => {
 161                'override' => 0,
 162                'default' => [0]},
 163
 164        # Make gitweb consider projects in project root subdirectories
 165        # to be forks of existing projects. Given project $projname.git,
 166        # projects matching $projname/*.git will not be shown in the main
 167        # projects list, instead a '+' mark will be added to $projname
 168        # there and a 'forks' view will be enabled for the project, listing
 169        # all the forks. This feature is supported only if project list
 170        # is taken from a directory, not file.
 171
 172        # To enable system wide have in $GITWEB_CONFIG
 173        # $feature{'forks'}{'default'} = [1];
 174        # Project specific override is not supported.
 175        'forks' => {
 176                'override' => 0,
 177                'default' => [0]},
 178);
 179
 180sub gitweb_check_feature {
 181        my ($name) = @_;
 182        return unless exists $feature{$name};
 183        my ($sub, $override, @defaults) = (
 184                $feature{$name}{'sub'},
 185                $feature{$name}{'override'},
 186                @{$feature{$name}{'default'}});
 187        if (!$override) { return @defaults; }
 188        if (!defined $sub) {
 189                warn "feature $name is not overrideable";
 190                return @defaults;
 191        }
 192        return $sub->(@defaults);
 193}
 194
 195sub feature_blame {
 196        my ($val) = git_get_project_config('blame', '--bool');
 197
 198        if ($val eq 'true') {
 199                return 1;
 200        } elsif ($val eq 'false') {
 201                return 0;
 202        }
 203
 204        return $_[0];
 205}
 206
 207sub feature_snapshot {
 208        my ($ctype, $suffix, $command) = @_;
 209
 210        my ($val) = git_get_project_config('snapshot');
 211
 212        if ($val eq 'gzip') {
 213                return ('x-gzip', 'gz', 'gzip');
 214        } elsif ($val eq 'bzip2') {
 215                return ('x-bzip2', 'bz2', 'bzip2');
 216        } elsif ($val eq 'none') {
 217                return ();
 218        }
 219
 220        return ($ctype, $suffix, $command);
 221}
 222
 223sub gitweb_have_snapshot {
 224        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
 225        my $have_snapshot = (defined $ctype && defined $suffix);
 226
 227        return $have_snapshot;
 228}
 229
 230sub feature_pickaxe {
 231        my ($val) = git_get_project_config('pickaxe', '--bool');
 232
 233        if ($val eq 'true') {
 234                return (1);
 235        } elsif ($val eq 'false') {
 236                return (0);
 237        }
 238
 239        return ($_[0]);
 240}
 241
 242# checking HEAD file with -e is fragile if the repository was
 243# initialized long time ago (i.e. symlink HEAD) and was pack-ref'ed
 244# and then pruned.
 245sub check_head_link {
 246        my ($dir) = @_;
 247        my $headfile = "$dir/HEAD";
 248        return ((-e $headfile) ||
 249                (-l $headfile && readlink($headfile) =~ /^refs\/heads\//));
 250}
 251
 252sub check_export_ok {
 253        my ($dir) = @_;
 254        return (check_head_link($dir) &&
 255                (!$export_ok || -e "$dir/$export_ok"));
 256}
 257
 258# rename detection options for git-diff and git-diff-tree
 259# - default is '-M', with the cost proportional to
 260#   (number of removed files) * (number of new files).
 261# - more costly is '-C' (or '-C', '-M'), with the cost proportional to
 262#   (number of changed files + number of removed files) * (number of new files)
 263# - even more costly is '-C', '--find-copies-harder' with cost
 264#   (number of files in the original tree) * (number of new files)
 265# - one might want to include '-B' option, e.g. '-B', '-M'
 266our @diff_opts = ('-M'); # taken from git_commit
 267
 268our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
 269do $GITWEB_CONFIG if -e $GITWEB_CONFIG;
 270
 271# version of the core git binary
 272our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
 273
 274$projects_list ||= $projectroot;
 275
 276# ======================================================================
 277# input validation and dispatch
 278our $action = $cgi->param('a');
 279if (defined $action) {
 280        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
 281                die_error(undef, "Invalid action parameter");
 282        }
 283}
 284
 285# parameters which are pathnames
 286our $project = $cgi->param('p');
 287if (defined $project) {
 288        if (!validate_pathname($project) ||
 289            !(-d "$projectroot/$project") ||
 290            !check_head_link("$projectroot/$project") ||
 291            ($export_ok && !(-e "$projectroot/$project/$export_ok")) ||
 292            ($strict_export && !project_in_list($project))) {
 293                undef $project;
 294                die_error(undef, "No such project");
 295        }
 296}
 297
 298our $file_name = $cgi->param('f');
 299if (defined $file_name) {
 300        if (!validate_pathname($file_name)) {
 301                die_error(undef, "Invalid file parameter");
 302        }
 303}
 304
 305our $file_parent = $cgi->param('fp');
 306if (defined $file_parent) {
 307        if (!validate_pathname($file_parent)) {
 308                die_error(undef, "Invalid file parent parameter");
 309        }
 310}
 311
 312# parameters which are refnames
 313our $hash = $cgi->param('h');
 314if (defined $hash) {
 315        if (!validate_refname($hash)) {
 316                die_error(undef, "Invalid hash parameter");
 317        }
 318}
 319
 320our $hash_parent = $cgi->param('hp');
 321if (defined $hash_parent) {
 322        if (!validate_refname($hash_parent)) {
 323                die_error(undef, "Invalid hash parent parameter");
 324        }
 325}
 326
 327our $hash_base = $cgi->param('hb');
 328if (defined $hash_base) {
 329        if (!validate_refname($hash_base)) {
 330                die_error(undef, "Invalid hash base parameter");
 331        }
 332}
 333
 334our $hash_parent_base = $cgi->param('hpb');
 335if (defined $hash_parent_base) {
 336        if (!validate_refname($hash_parent_base)) {
 337                die_error(undef, "Invalid hash parent base parameter");
 338        }
 339}
 340
 341# other parameters
 342our $page = $cgi->param('pg');
 343if (defined $page) {
 344        if ($page =~ m/[^0-9]/) {
 345                die_error(undef, "Invalid page parameter");
 346        }
 347}
 348
 349our $searchtext = $cgi->param('s');
 350if (defined $searchtext) {
 351        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 352                die_error(undef, "Invalid search parameter");
 353        }
 354        $searchtext = quotemeta $searchtext;
 355}
 356
 357our $searchtype = $cgi->param('st');
 358if (defined $searchtype) {
 359        if ($searchtype =~ m/[^a-z]/) {
 360                die_error(undef, "Invalid searchtype parameter");
 361        }
 362}
 363
 364# now read PATH_INFO and use it as alternative to parameters
 365sub evaluate_path_info {
 366        return if defined $project;
 367        my $path_info = $ENV{"PATH_INFO"};
 368        return if !$path_info;
 369        $path_info =~ s,^/+,,;
 370        return if !$path_info;
 371        # find which part of PATH_INFO is project
 372        $project = $path_info;
 373        $project =~ s,/+$,,;
 374        while ($project && !check_head_link("$projectroot/$project")) {
 375                $project =~ s,/*[^/]*$,,;
 376        }
 377        # validate project
 378        $project = validate_pathname($project);
 379        if (!$project ||
 380            ($export_ok && !-e "$projectroot/$project/$export_ok") ||
 381            ($strict_export && !project_in_list($project))) {
 382                undef $project;
 383                return;
 384        }
 385        # do not change any parameters if an action is given using the query string
 386        return if $action;
 387        $path_info =~ s,^$project/*,,;
 388        my ($refname, $pathname) = split(/:/, $path_info, 2);
 389        if (defined $pathname) {
 390                # we got "project.git/branch:filename" or "project.git/branch:dir/"
 391                # we could use git_get_type(branch:pathname), but it needs $git_dir
 392                $pathname =~ s,^/+,,;
 393                if (!$pathname || substr($pathname, -1) eq "/") {
 394                        $action  ||= "tree";
 395                        $pathname =~ s,/$,,;
 396                } else {
 397                        $action  ||= "blob_plain";
 398                }
 399                $hash_base ||= validate_refname($refname);
 400                $file_name ||= validate_pathname($pathname);
 401        } elsif (defined $refname) {
 402                # we got "project.git/branch"
 403                $action ||= "shortlog";
 404                $hash   ||= validate_refname($refname);
 405        }
 406}
 407evaluate_path_info();
 408
 409# path to the current git repository
 410our $git_dir;
 411$git_dir = "$projectroot/$project" if $project;
 412
 413# dispatch
 414my %actions = (
 415        "blame" => \&git_blame2,
 416        "blobdiff" => \&git_blobdiff,
 417        "blobdiff_plain" => \&git_blobdiff_plain,
 418        "blob" => \&git_blob,
 419        "blob_plain" => \&git_blob_plain,
 420        "commitdiff" => \&git_commitdiff,
 421        "commitdiff_plain" => \&git_commitdiff_plain,
 422        "commit" => \&git_commit,
 423        "forks" => \&git_forks,
 424        "heads" => \&git_heads,
 425        "history" => \&git_history,
 426        "log" => \&git_log,
 427        "rss" => \&git_rss,
 428        "search" => \&git_search,
 429        "search_help" => \&git_search_help,
 430        "shortlog" => \&git_shortlog,
 431        "summary" => \&git_summary,
 432        "tag" => \&git_tag,
 433        "tags" => \&git_tags,
 434        "tree" => \&git_tree,
 435        "snapshot" => \&git_snapshot,
 436        # those below don't need $project
 437        "opml" => \&git_opml,
 438        "project_list" => \&git_project_list,
 439        "project_index" => \&git_project_index,
 440);
 441
 442if (defined $project) {
 443        $action ||= 'summary';
 444} else {
 445        $action ||= 'project_list';
 446}
 447if (!defined($actions{$action})) {
 448        die_error(undef, "Unknown action");
 449}
 450if ($action !~ m/^(opml|project_list|project_index)$/ &&
 451    !$project) {
 452        die_error(undef, "Project needed");
 453}
 454$actions{$action}->();
 455exit;
 456
 457## ======================================================================
 458## action links
 459
 460sub href(%) {
 461        my %params = @_;
 462        my $href = $my_uri;
 463
 464        # XXX: Warning: If you touch this, check the search form for updating,
 465        # too.
 466
 467        my @mapping = (
 468                project => "p",
 469                action => "a",
 470                file_name => "f",
 471                file_parent => "fp",
 472                hash => "h",
 473                hash_parent => "hp",
 474                hash_base => "hb",
 475                hash_parent_base => "hpb",
 476                page => "pg",
 477                order => "o",
 478                searchtext => "s",
 479                searchtype => "st",
 480        );
 481        my %mapping = @mapping;
 482
 483        $params{'project'} = $project unless exists $params{'project'};
 484
 485        my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 486        if ($use_pathinfo) {
 487                # use PATH_INFO for project name
 488                $href .= "/$params{'project'}" if defined $params{'project'};
 489                delete $params{'project'};
 490
 491                # Summary just uses the project path URL
 492                if (defined $params{'action'} && $params{'action'} eq 'summary') {
 493                        delete $params{'action'};
 494                }
 495        }
 496
 497        # now encode the parameters explicitly
 498        my @result = ();
 499        for (my $i = 0; $i < @mapping; $i += 2) {
 500                my ($name, $symbol) = ($mapping[$i], $mapping[$i+1]);
 501                if (defined $params{$name}) {
 502                        push @result, $symbol . "=" . esc_param($params{$name});
 503                }
 504        }
 505        $href .= "?" . join(';', @result) if scalar @result;
 506
 507        return $href;
 508}
 509
 510
 511## ======================================================================
 512## validation, quoting/unquoting and escaping
 513
 514sub validate_pathname {
 515        my $input = shift || return undef;
 516
 517        # no '.' or '..' as elements of path, i.e. no '.' nor '..'
 518        # at the beginning, at the end, and between slashes.
 519        # also this catches doubled slashes
 520        if ($input =~ m!(^|/)(|\.|\.\.)(/|$)!) {
 521                return undef;
 522        }
 523        # no null characters
 524        if ($input =~ m!\0!) {
 525                return undef;
 526        }
 527        return $input;
 528}
 529
 530sub validate_refname {
 531        my $input = shift || return undef;
 532
 533        # textual hashes are O.K.
 534        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 535                return $input;
 536        }
 537        # it must be correct pathname
 538        $input = validate_pathname($input)
 539                or return undef;
 540        # restrictions on ref name according to git-check-ref-format
 541        if ($input =~ m!(/\.|\.\.|[\000-\040\177 ~^:?*\[]|/$)!) {
 542                return undef;
 543        }
 544        return $input;
 545}
 546
 547# very thin wrapper for decode("utf8", $str, Encode::FB_DEFAULT);
 548sub to_utf8 {
 549        my $str = shift;
 550        return decode("utf8", $str, Encode::FB_DEFAULT);
 551}
 552
 553# quote unsafe chars, but keep the slash, even when it's not
 554# correct, but quoted slashes look too horrible in bookmarks
 555sub esc_param {
 556        my $str = shift;
 557        $str =~ s/([^A-Za-z0-9\-_.~()\/:@])/sprintf("%%%02X", ord($1))/eg;
 558        $str =~ s/\+/%2B/g;
 559        $str =~ s/ /\+/g;
 560        return $str;
 561}
 562
 563# quote unsafe chars in whole URL, so some charactrs cannot be quoted
 564sub esc_url {
 565        my $str = shift;
 566        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 567        $str =~ s/\+/%2B/g;
 568        $str =~ s/ /\+/g;
 569        return $str;
 570}
 571
 572# replace invalid utf8 character with SUBSTITUTION sequence
 573sub esc_html ($;%) {
 574        my $str = shift;
 575        my %opts = @_;
 576
 577        $str = to_utf8($str);
 578        $str = escapeHTML($str);
 579        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 580        $str =~ s/\033/^[/g; # "escape" ESCAPE (\e) character (e.g. commit 20a3847d8a5032ce41f90dcc68abfb36e6fee9b1)
 581        if ($opts{'-nbsp'}) {
 582                $str =~ s/ /&nbsp;/g;
 583        }
 584        return $str;
 585}
 586
 587# git may return quoted and escaped filenames
 588sub unquote {
 589        my $str = shift;
 590        if ($str =~ m/^"(.*)"$/) {
 591                $str = $1;
 592                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 593        }
 594        return $str;
 595}
 596
 597# escape tabs (convert tabs to spaces)
 598sub untabify {
 599        my $line = shift;
 600
 601        while ((my $pos = index($line, "\t")) != -1) {
 602                if (my $count = (8 - ($pos % 8))) {
 603                        my $spaces = ' ' x $count;
 604                        $line =~ s/\t/$spaces/;
 605                }
 606        }
 607
 608        return $line;
 609}
 610
 611sub project_in_list {
 612        my $project = shift;
 613        my @list = git_get_projects_list();
 614        return @list && scalar(grep { $_->{'path'} eq $project } @list);
 615}
 616
 617## ----------------------------------------------------------------------
 618## HTML aware string manipulation
 619
 620sub chop_str {
 621        my $str = shift;
 622        my $len = shift;
 623        my $add_len = shift || 10;
 624
 625        # allow only $len chars, but don't cut a word if it would fit in $add_len
 626        # if it doesn't fit, cut it if it's still longer than the dots we would add
 627        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 628        my $body = $1;
 629        my $tail = $2;
 630        if (length($tail) > 4) {
 631                $tail = " ...";
 632                $body =~ s/&[^;]*$//; # remove chopped character entities
 633        }
 634        return "$body$tail";
 635}
 636
 637## ----------------------------------------------------------------------
 638## functions returning short strings
 639
 640# CSS class for given age value (in seconds)
 641sub age_class {
 642        my $age = shift;
 643
 644        if ($age < 60*60*2) {
 645                return "age0";
 646        } elsif ($age < 60*60*24*2) {
 647                return "age1";
 648        } else {
 649                return "age2";
 650        }
 651}
 652
 653# convert age in seconds to "nn units ago" string
 654sub age_string {
 655        my $age = shift;
 656        my $age_str;
 657
 658        if ($age > 60*60*24*365*2) {
 659                $age_str = (int $age/60/60/24/365);
 660                $age_str .= " years ago";
 661        } elsif ($age > 60*60*24*(365/12)*2) {
 662                $age_str = int $age/60/60/24/(365/12);
 663                $age_str .= " months ago";
 664        } elsif ($age > 60*60*24*7*2) {
 665                $age_str = int $age/60/60/24/7;
 666                $age_str .= " weeks ago";
 667        } elsif ($age > 60*60*24*2) {
 668                $age_str = int $age/60/60/24;
 669                $age_str .= " days ago";
 670        } elsif ($age > 60*60*2) {
 671                $age_str = int $age/60/60;
 672                $age_str .= " hours ago";
 673        } elsif ($age > 60*2) {
 674                $age_str = int $age/60;
 675                $age_str .= " min ago";
 676        } elsif ($age > 2) {
 677                $age_str = int $age;
 678                $age_str .= " sec ago";
 679        } else {
 680                $age_str .= " right now";
 681        }
 682        return $age_str;
 683}
 684
 685# convert file mode in octal to symbolic file mode string
 686sub mode_str {
 687        my $mode = oct shift;
 688
 689        if (S_ISDIR($mode & S_IFMT)) {
 690                return 'drwxr-xr-x';
 691        } elsif (S_ISLNK($mode)) {
 692                return 'lrwxrwxrwx';
 693        } elsif (S_ISREG($mode)) {
 694                # git cares only about the executable bit
 695                if ($mode & S_IXUSR) {
 696                        return '-rwxr-xr-x';
 697                } else {
 698                        return '-rw-r--r--';
 699                };
 700        } else {
 701                return '----------';
 702        }
 703}
 704
 705# convert file mode in octal to file type string
 706sub file_type {
 707        my $mode = shift;
 708
 709        if ($mode !~ m/^[0-7]+$/) {
 710                return $mode;
 711        } else {
 712                $mode = oct $mode;
 713        }
 714
 715        if (S_ISDIR($mode & S_IFMT)) {
 716                return "directory";
 717        } elsif (S_ISLNK($mode)) {
 718                return "symlink";
 719        } elsif (S_ISREG($mode)) {
 720                return "file";
 721        } else {
 722                return "unknown";
 723        }
 724}
 725
 726## ----------------------------------------------------------------------
 727## functions returning short HTML fragments, or transforming HTML fragments
 728## which don't beling to other sections
 729
 730# format line of commit message or tag comment
 731sub format_log_line_html {
 732        my $line = shift;
 733
 734        $line = esc_html($line);
 735        $line =~ s/ /&nbsp;/g;
 736        if ($line =~ m/([0-9a-fA-F]{40})/) {
 737                my $hash_text = $1;
 738                if (git_get_type($hash_text) eq "commit") {
 739                        my $link =
 740                                $cgi->a({-href => href(action=>"commit", hash=>$hash_text),
 741                                        -class => "text"}, $hash_text);
 742                        $line =~ s/$hash_text/$link/;
 743                }
 744        }
 745        return $line;
 746}
 747
 748# format marker of refs pointing to given object
 749sub format_ref_marker {
 750        my ($refs, $id) = @_;
 751        my $markers = '';
 752
 753        if (defined $refs->{$id}) {
 754                foreach my $ref (@{$refs->{$id}}) {
 755                        my ($type, $name) = qw();
 756                        # e.g. tags/v2.6.11 or heads/next
 757                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 758                                $type = $1;
 759                                $name = $2;
 760                        } else {
 761                                $type = "ref";
 762                                $name = $ref;
 763                        }
 764
 765                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 766                }
 767        }
 768
 769        if ($markers) {
 770                return ' <span class="refs">'. $markers . '</span>';
 771        } else {
 772                return "";
 773        }
 774}
 775
 776# format, perhaps shortened and with markers, title line
 777sub format_subject_html {
 778        my ($long, $short, $href, $extra) = @_;
 779        $extra = '' unless defined($extra);
 780
 781        if (length($short) < length($long)) {
 782                return $cgi->a({-href => $href, -class => "list subject",
 783                                -title => to_utf8($long)},
 784                       esc_html($short) . $extra);
 785        } else {
 786                return $cgi->a({-href => $href, -class => "list subject"},
 787                       esc_html($long)  . $extra);
 788        }
 789}
 790
 791sub format_diff_line {
 792        my $line = shift;
 793        my $char = substr($line, 0, 1);
 794        my $diff_class = "";
 795
 796        chomp $line;
 797
 798        if ($char eq '+') {
 799                $diff_class = " add";
 800        } elsif ($char eq "-") {
 801                $diff_class = " rem";
 802        } elsif ($char eq "@") {
 803                $diff_class = " chunk_header";
 804        } elsif ($char eq "\\") {
 805                $diff_class = " incomplete";
 806        }
 807        $line = untabify($line);
 808        return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
 809}
 810
 811## ----------------------------------------------------------------------
 812## git utility subroutines, invoking git commands
 813
 814# returns path to the core git executable and the --git-dir parameter as list
 815sub git_cmd {
 816        return $GIT, '--git-dir='.$git_dir;
 817}
 818
 819# returns path to the core git executable and the --git-dir parameter as string
 820sub git_cmd_str {
 821        return join(' ', git_cmd());
 822}
 823
 824# get HEAD ref of given project as hash
 825sub git_get_head_hash {
 826        my $project = shift;
 827        my $o_git_dir = $git_dir;
 828        my $retval = undef;
 829        $git_dir = "$projectroot/$project";
 830        if (open my $fd, "-|", git_cmd(), "rev-parse", "--verify", "HEAD") {
 831                my $head = <$fd>;
 832                close $fd;
 833                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 834                        $retval = $1;
 835                }
 836        }
 837        if (defined $o_git_dir) {
 838                $git_dir = $o_git_dir;
 839        }
 840        return $retval;
 841}
 842
 843# get type of given object
 844sub git_get_type {
 845        my $hash = shift;
 846
 847        open my $fd, "-|", git_cmd(), "cat-file", '-t', $hash or return;
 848        my $type = <$fd>;
 849        close $fd or return;
 850        chomp $type;
 851        return $type;
 852}
 853
 854sub git_get_project_config {
 855        my ($key, $type) = @_;
 856
 857        return unless ($key);
 858        $key =~ s/^gitweb\.//;
 859        return if ($key =~ m/\W/);
 860
 861        my @x = (git_cmd(), 'repo-config');
 862        if (defined $type) { push @x, $type; }
 863        push @x, "--get";
 864        push @x, "gitweb.$key";
 865        my $val = qx(@x);
 866        chomp $val;
 867        return ($val);
 868}
 869
 870# get hash of given path at given ref
 871sub git_get_hash_by_path {
 872        my $base = shift;
 873        my $path = shift || return undef;
 874        my $type = shift;
 875
 876        $path =~ s,/+$,,;
 877
 878        open my $fd, "-|", git_cmd(), "ls-tree", $base, "--", $path
 879                or die_error(undef, "Open git-ls-tree failed");
 880        my $line = <$fd>;
 881        close $fd or return undef;
 882
 883        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 884        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/;
 885        if (defined $type && $type ne $2) {
 886                # type doesn't match
 887                return undef;
 888        }
 889        return $3;
 890}
 891
 892## ......................................................................
 893## git utility functions, directly accessing git repository
 894
 895sub git_get_project_description {
 896        my $path = shift;
 897
 898        open my $fd, "$projectroot/$path/description" or return undef;
 899        my $descr = <$fd>;
 900        close $fd;
 901        chomp $descr;
 902        return $descr;
 903}
 904
 905sub git_get_project_url_list {
 906        my $path = shift;
 907
 908        open my $fd, "$projectroot/$path/cloneurl" or return;
 909        my @git_project_url_list = map { chomp; $_ } <$fd>;
 910        close $fd;
 911
 912        return wantarray ? @git_project_url_list : \@git_project_url_list;
 913}
 914
 915sub git_get_projects_list {
 916        my ($filter) = @_;
 917        my @list;
 918
 919        $filter ||= '';
 920        $filter =~ s/\.git$//;
 921
 922        if (-d $projects_list) {
 923                # search in directory
 924                my $dir = $projects_list . ($filter ? "/$filter" : '');
 925                # remove the trailing "/"
 926                $dir =~ s!/+$!!;
 927                my $pfxlen = length("$dir");
 928
 929                my $check_forks = gitweb_check_feature('forks');
 930
 931                File::Find::find({
 932                        follow_fast => 1, # follow symbolic links
 933                        dangling_symlinks => 0, # ignore dangling symlinks, silently
 934                        wanted => sub {
 935                                # skip project-list toplevel, if we get it.
 936                                return if (m!^[/.]$!);
 937                                # only directories can be git repositories
 938                                return unless (-d $_);
 939
 940                                my $subdir = substr($File::Find::name, $pfxlen + 1);
 941                                # we check related file in $projectroot
 942                                if ($check_forks and $subdir =~ m#/.#) {
 943                                        $File::Find::prune = 1;
 944                                } elsif (check_export_ok("$projectroot/$filter/$subdir")) {
 945                                        push @list, { path => ($filter ? "$filter/" : '') . $subdir };
 946                                        $File::Find::prune = 1;
 947                                }
 948                        },
 949                }, "$dir");
 950
 951        } elsif (-f $projects_list) {
 952                # read from file(url-encoded):
 953                # 'git%2Fgit.git Linus+Torvalds'
 954                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 955                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 956                open my ($fd), $projects_list or return;
 957                while (my $line = <$fd>) {
 958                        chomp $line;
 959                        my ($path, $owner) = split ' ', $line;
 960                        $path = unescape($path);
 961                        $owner = unescape($owner);
 962                        if (!defined $path) {
 963                                next;
 964                        }
 965                        if (check_export_ok("$projectroot/$path")) {
 966                                my $pr = {
 967                                        path => $path,
 968                                        owner => to_utf8($owner),
 969                                };
 970                                push @list, $pr
 971                        }
 972                }
 973                close $fd;
 974        }
 975        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 976        return @list;
 977}
 978
 979sub git_get_project_owner {
 980        my $project = shift;
 981        my $owner;
 982
 983        return undef unless $project;
 984
 985        # read from file (url-encoded):
 986        # 'git%2Fgit.git Linus+Torvalds'
 987        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 988        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 989        if (-f $projects_list) {
 990                open (my $fd , $projects_list);
 991                while (my $line = <$fd>) {
 992                        chomp $line;
 993                        my ($pr, $ow) = split ' ', $line;
 994                        $pr = unescape($pr);
 995                        $ow = unescape($ow);
 996                        if ($pr eq $project) {
 997                                $owner = to_utf8($ow);
 998                                last;
 999                        }
1000                }
1001                close $fd;
1002        }
1003        if (!defined $owner) {
1004                $owner = get_file_owner("$projectroot/$project");
1005        }
1006
1007        return $owner;
1008}
1009
1010sub git_get_last_activity {
1011        my ($path) = @_;
1012        my $fd;
1013
1014        $git_dir = "$projectroot/$path";
1015        open($fd, "-|", git_cmd(), 'for-each-ref',
1016             '--format=%(refname) %(committer)',
1017             '--sort=-committerdate',
1018             'refs/heads') or return;
1019        my $most_recent = <$fd>;
1020        close $fd or return;
1021        if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) {
1022                my $timestamp = $1;
1023                my $age = time - $timestamp;
1024                return ($age, age_string($age));
1025        }
1026}
1027
1028sub git_get_references {
1029        my $type = shift || "";
1030        my %refs;
1031        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
1032        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
1033        open my $fd, "-|", $GIT, "peek-remote", "$projectroot/$project/"
1034                or return;
1035
1036        while (my $line = <$fd>) {
1037                chomp $line;
1038                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
1039                        if (defined $refs{$1}) {
1040                                push @{$refs{$1}}, $2;
1041                        } else {
1042                                $refs{$1} = [ $2 ];
1043                        }
1044                }
1045        }
1046        close $fd or return;
1047        return \%refs;
1048}
1049
1050sub git_get_rev_name_tags {
1051        my $hash = shift || return undef;
1052
1053        open my $fd, "-|", git_cmd(), "name-rev", "--tags", $hash
1054                or return;
1055        my $name_rev = <$fd>;
1056        close $fd;
1057
1058        if ($name_rev =~ m|^$hash tags/(.*)$|) {
1059                return $1;
1060        } else {
1061                # catches also '$hash undefined' output
1062                return undef;
1063        }
1064}
1065
1066## ----------------------------------------------------------------------
1067## parse to hash functions
1068
1069sub parse_date {
1070        my $epoch = shift;
1071        my $tz = shift || "-0000";
1072
1073        my %date;
1074        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
1075        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
1076        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
1077        $date{'hour'} = $hour;
1078        $date{'minute'} = $min;
1079        $date{'mday'} = $mday;
1080        $date{'day'} = $days[$wday];
1081        $date{'month'} = $months[$mon];
1082        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000",
1083                           $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
1084        $date{'mday-time'} = sprintf "%d %s %02d:%02d",
1085                             $mday, $months[$mon], $hour ,$min;
1086
1087        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
1088        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
1089        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
1090        $date{'hour_local'} = $hour;
1091        $date{'minute_local'} = $min;
1092        $date{'tz_local'} = $tz;
1093        $date{'iso-tz'} = sprintf ("%04d-%02d-%02d %02d:%02d:%02d %s",
1094                                   1900+$year, $mon+1, $mday,
1095                                   $hour, $min, $sec, $tz);
1096        return %date;
1097}
1098
1099sub parse_tag {
1100        my $tag_id = shift;
1101        my %tag;
1102        my @comment;
1103
1104        open my $fd, "-|", git_cmd(), "cat-file", "tag", $tag_id or return;
1105        $tag{'id'} = $tag_id;
1106        while (my $line = <$fd>) {
1107                chomp $line;
1108                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
1109                        $tag{'object'} = $1;
1110                } elsif ($line =~ m/^type (.+)$/) {
1111                        $tag{'type'} = $1;
1112                } elsif ($line =~ m/^tag (.+)$/) {
1113                        $tag{'name'} = $1;
1114                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
1115                        $tag{'author'} = $1;
1116                        $tag{'epoch'} = $2;
1117                        $tag{'tz'} = $3;
1118                } elsif ($line =~ m/--BEGIN/) {
1119                        push @comment, $line;
1120                        last;
1121                } elsif ($line eq "") {
1122                        last;
1123                }
1124        }
1125        push @comment, <$fd>;
1126        $tag{'comment'} = \@comment;
1127        close $fd or return;
1128        if (!defined $tag{'name'}) {
1129                return
1130        };
1131        return %tag
1132}
1133
1134sub parse_commit {
1135        my $commit_id = shift;
1136        my $commit_text = shift;
1137
1138        my @commit_lines;
1139        my %co;
1140
1141        if (defined $commit_text) {
1142                @commit_lines = @$commit_text;
1143        } else {
1144                local $/ = "\0";
1145                open my $fd, "-|", git_cmd(), "rev-list",
1146                        "--header", "--parents", "--max-count=1",
1147                        $commit_id, "--"
1148                        or return;
1149                @commit_lines = split '\n', <$fd>;
1150                close $fd or return;
1151                pop @commit_lines;
1152        }
1153        my $header = shift @commit_lines;
1154        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
1155                return;
1156        }
1157        ($co{'id'}, my @parents) = split ' ', $header;
1158        $co{'parents'} = \@parents;
1159        $co{'parent'} = $parents[0];
1160        while (my $line = shift @commit_lines) {
1161                last if $line eq "\n";
1162                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
1163                        $co{'tree'} = $1;
1164                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
1165                        $co{'author'} = $1;
1166                        $co{'author_epoch'} = $2;
1167                        $co{'author_tz'} = $3;
1168                        if ($co{'author'} =~ m/^([^<]+) </) {
1169                                $co{'author_name'} = $1;
1170                        } else {
1171                                $co{'author_name'} = $co{'author'};
1172                        }
1173                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
1174                        $co{'committer'} = $1;
1175                        $co{'committer_epoch'} = $2;
1176                        $co{'committer_tz'} = $3;
1177                        $co{'committer_name'} = $co{'committer'};
1178                        $co{'committer_name'} =~ s/ <.*//;
1179                }
1180        }
1181        if (!defined $co{'tree'}) {
1182                return;
1183        };
1184
1185        foreach my $title (@commit_lines) {
1186                $title =~ s/^    //;
1187                if ($title ne "") {
1188                        $co{'title'} = chop_str($title, 80, 5);
1189                        # remove leading stuff of merges to make the interesting part visible
1190                        if (length($title) > 50) {
1191                                $title =~ s/^Automatic //;
1192                                $title =~ s/^merge (of|with) /Merge ... /i;
1193                                if (length($title) > 50) {
1194                                        $title =~ s/(http|rsync):\/\///;
1195                                }
1196                                if (length($title) > 50) {
1197                                        $title =~ s/(master|www|rsync)\.//;
1198                                }
1199                                if (length($title) > 50) {
1200                                        $title =~ s/kernel.org:?//;
1201                                }
1202                                if (length($title) > 50) {
1203                                        $title =~ s/\/pub\/scm//;
1204                                }
1205                        }
1206                        $co{'title_short'} = chop_str($title, 50, 5);
1207                        last;
1208                }
1209        }
1210        if ($co{'title'} eq "") {
1211                $co{'title'} = $co{'title_short'} = '(no commit message)';
1212        }
1213        # remove added spaces
1214        foreach my $line (@commit_lines) {
1215                $line =~ s/^    //;
1216        }
1217        $co{'comment'} = \@commit_lines;
1218
1219        my $age = time - $co{'committer_epoch'};
1220        $co{'age'} = $age;
1221        $co{'age_string'} = age_string($age);
1222        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
1223        if ($age > 60*60*24*7*2) {
1224                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1225                $co{'age_string_age'} = $co{'age_string'};
1226        } else {
1227                $co{'age_string_date'} = $co{'age_string'};
1228                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
1229        }
1230        return %co;
1231}
1232
1233# parse ref from ref_file, given by ref_id, with given type
1234sub parse_ref {
1235        my $ref_file = shift;
1236        my $ref_id = shift;
1237        my $type = shift || git_get_type($ref_id);
1238        my %ref_item;
1239
1240        $ref_item{'type'} = $type;
1241        $ref_item{'id'} = $ref_id;
1242        $ref_item{'epoch'} = 0;
1243        $ref_item{'age'} = "unknown";
1244        if ($type eq "tag") {
1245                my %tag = parse_tag($ref_id);
1246                $ref_item{'comment'} = $tag{'comment'};
1247                if ($tag{'type'} eq "commit") {
1248                        my %co = parse_commit($tag{'object'});
1249                        $ref_item{'epoch'} = $co{'committer_epoch'};
1250                        $ref_item{'age'} = $co{'age_string'};
1251                } elsif (defined($tag{'epoch'})) {
1252                        my $age = time - $tag{'epoch'};
1253                        $ref_item{'epoch'} = $tag{'epoch'};
1254                        $ref_item{'age'} = age_string($age);
1255                }
1256                $ref_item{'reftype'} = $tag{'type'};
1257                $ref_item{'name'} = $tag{'name'};
1258                $ref_item{'refid'} = $tag{'object'};
1259        } elsif ($type eq "commit"){
1260                my %co = parse_commit($ref_id);
1261                $ref_item{'reftype'} = "commit";
1262                $ref_item{'name'} = $ref_file;
1263                $ref_item{'title'} = $co{'title'};
1264                $ref_item{'refid'} = $ref_id;
1265                $ref_item{'epoch'} = $co{'committer_epoch'};
1266                $ref_item{'age'} = $co{'age_string'};
1267        } else {
1268                $ref_item{'reftype'} = $type;
1269                $ref_item{'name'} = $ref_file;
1270                $ref_item{'refid'} = $ref_id;
1271        }
1272
1273        return %ref_item;
1274}
1275
1276# parse line of git-diff-tree "raw" output
1277sub parse_difftree_raw_line {
1278        my $line = shift;
1279        my %res;
1280
1281        # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1282        # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1283        if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1284                $res{'from_mode'} = $1;
1285                $res{'to_mode'} = $2;
1286                $res{'from_id'} = $3;
1287                $res{'to_id'} = $4;
1288                $res{'status'} = $5;
1289                $res{'similarity'} = $6;
1290                if ($res{'status'} eq 'R' || $res{'status'} eq 'C') { # renamed or copied
1291                        ($res{'from_file'}, $res{'to_file'}) = map { unquote($_) } split("\t", $7);
1292                } else {
1293                        $res{'file'} = unquote($7);
1294                }
1295        }
1296        # 'c512b523472485aef4fff9e57b229d9d243c967f'
1297        elsif ($line =~ m/^([0-9a-fA-F]{40})$/) {
1298                $res{'commit'} = $1;
1299        }
1300
1301        return wantarray ? %res : \%res;
1302}
1303
1304# parse line of git-ls-tree output
1305sub parse_ls_tree_line ($;%) {
1306        my $line = shift;
1307        my %opts = @_;
1308        my %res;
1309
1310        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
1311        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/s;
1312
1313        $res{'mode'} = $1;
1314        $res{'type'} = $2;
1315        $res{'hash'} = $3;
1316        if ($opts{'-z'}) {
1317                $res{'name'} = $4;
1318        } else {
1319                $res{'name'} = unquote($4);
1320        }
1321
1322        return wantarray ? %res : \%res;
1323}
1324
1325## ......................................................................
1326## parse to array of hashes functions
1327
1328sub git_get_heads_list {
1329        my $limit = shift;
1330        my @headslist;
1331
1332        open my $fd, '-|', git_cmd(), 'for-each-ref',
1333                ($limit ? '--count='.($limit+1) : ()), '--sort=-committerdate',
1334                '--format=%(objectname) %(refname) %(subject)%00%(committer)',
1335                'refs/heads'
1336                or return;
1337        while (my $line = <$fd>) {
1338                my %ref_item;
1339
1340                chomp $line;
1341                my ($refinfo, $committerinfo) = split(/\0/, $line);
1342                my ($hash, $name, $title) = split(' ', $refinfo, 3);
1343                my ($committer, $epoch, $tz) =
1344                        ($committerinfo =~ /^(.*) ([0-9]+) (.*)$/);
1345                $name =~ s!^refs/heads/!!;
1346
1347                $ref_item{'name'}  = $name;
1348                $ref_item{'id'}    = $hash;
1349                $ref_item{'title'} = $title || '(no commit message)';
1350                $ref_item{'epoch'} = $epoch;
1351                if ($epoch) {
1352                        $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1353                } else {
1354                        $ref_item{'age'} = "unknown";
1355                }
1356
1357                push @headslist, \%ref_item;
1358        }
1359        close $fd;
1360
1361        return wantarray ? @headslist : \@headslist;
1362}
1363
1364sub git_get_tags_list {
1365        my $limit = shift;
1366        my @tagslist;
1367
1368        open my $fd, '-|', git_cmd(), 'for-each-ref',
1369                ($limit ? '--count='.($limit+1) : ()), '--sort=-creatordate',
1370                '--format=%(objectname) %(objecttype) %(refname) '.
1371                '%(*objectname) %(*objecttype) %(subject)%00%(creator)',
1372                'refs/tags'
1373                or return;
1374        while (my $line = <$fd>) {
1375                my %ref_item;
1376
1377                chomp $line;
1378                my ($refinfo, $creatorinfo) = split(/\0/, $line);
1379                my ($id, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
1380                my ($creator, $epoch, $tz) =
1381                        ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
1382                $name =~ s!^refs/tags/!!;
1383
1384                $ref_item{'type'} = $type;
1385                $ref_item{'id'} = $id;
1386                $ref_item{'name'} = $name;
1387                if ($type eq "tag") {
1388                        $ref_item{'subject'} = $title;
1389                        $ref_item{'reftype'} = $reftype;
1390                        $ref_item{'refid'}   = $refid;
1391                } else {
1392                        $ref_item{'reftype'} = $type;
1393                        $ref_item{'refid'}   = $id;
1394                }
1395
1396                if ($type eq "tag" || $type eq "commit") {
1397                        $ref_item{'epoch'} = $epoch;
1398                        if ($epoch) {
1399                                $ref_item{'age'} = age_string(time - $ref_item{'epoch'});
1400                        } else {
1401                                $ref_item{'age'} = "unknown";
1402                        }
1403                }
1404
1405                push @tagslist, \%ref_item;
1406        }
1407        close $fd;
1408
1409        return wantarray ? @tagslist : \@tagslist;
1410}
1411
1412## ----------------------------------------------------------------------
1413## filesystem-related functions
1414
1415sub get_file_owner {
1416        my $path = shift;
1417
1418        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
1419        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
1420        if (!defined $gcos) {
1421                return undef;
1422        }
1423        my $owner = $gcos;
1424        $owner =~ s/[,;].*$//;
1425        return to_utf8($owner);
1426}
1427
1428## ......................................................................
1429## mimetype related functions
1430
1431sub mimetype_guess_file {
1432        my $filename = shift;
1433        my $mimemap = shift;
1434        -r $mimemap or return undef;
1435
1436        my %mimemap;
1437        open(MIME, $mimemap) or return undef;
1438        while (<MIME>) {
1439                next if m/^#/; # skip comments
1440                my ($mime, $exts) = split(/\t+/);
1441                if (defined $exts) {
1442                        my @exts = split(/\s+/, $exts);
1443                        foreach my $ext (@exts) {
1444                                $mimemap{$ext} = $mime;
1445                        }
1446                }
1447        }
1448        close(MIME);
1449
1450        $filename =~ /\.([^.]*)$/;
1451        return $mimemap{$1};
1452}
1453
1454sub mimetype_guess {
1455        my $filename = shift;
1456        my $mime;
1457        $filename =~ /\./ or return undef;
1458
1459        if ($mimetypes_file) {
1460                my $file = $mimetypes_file;
1461                if ($file !~ m!^/!) { # if it is relative path
1462                        # it is relative to project
1463                        $file = "$projectroot/$project/$file";
1464                }
1465                $mime = mimetype_guess_file($filename, $file);
1466        }
1467        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
1468        return $mime;
1469}
1470
1471sub blob_mimetype {
1472        my $fd = shift;
1473        my $filename = shift;
1474
1475        if ($filename) {
1476                my $mime = mimetype_guess($filename);
1477                $mime and return $mime;
1478        }
1479
1480        # just in case
1481        return $default_blob_plain_mimetype unless $fd;
1482
1483        if (-T $fd) {
1484                return 'text/plain' .
1485                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
1486        } elsif (! $filename) {
1487                return 'application/octet-stream';
1488        } elsif ($filename =~ m/\.png$/i) {
1489                return 'image/png';
1490        } elsif ($filename =~ m/\.gif$/i) {
1491                return 'image/gif';
1492        } elsif ($filename =~ m/\.jpe?g$/i) {
1493                return 'image/jpeg';
1494        } else {
1495                return 'application/octet-stream';
1496        }
1497}
1498
1499## ======================================================================
1500## functions printing HTML: header, footer, error page
1501
1502sub git_header_html {
1503        my $status = shift || "200 OK";
1504        my $expires = shift;
1505
1506        my $title = "$site_name";
1507        if (defined $project) {
1508                $title .= " - $project";
1509                if (defined $action) {
1510                        $title .= "/$action";
1511                        if (defined $file_name) {
1512                                $title .= " - " . esc_html($file_name);
1513                                if ($action eq "tree" && $file_name !~ m|/$|) {
1514                                        $title .= "/";
1515                                }
1516                        }
1517                }
1518        }
1519        my $content_type;
1520        # require explicit support from the UA if we are to send the page as
1521        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
1522        # we have to do this because MSIE sometimes globs '*/*', pretending to
1523        # support xhtml+xml but choking when it gets what it asked for.
1524        if (defined $cgi->http('HTTP_ACCEPT') &&
1525            $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ &&
1526            $cgi->Accept('application/xhtml+xml') != 0) {
1527                $content_type = 'application/xhtml+xml';
1528        } else {
1529                $content_type = 'text/html';
1530        }
1531        print $cgi->header(-type=>$content_type, -charset => 'utf-8',
1532                           -status=> $status, -expires => $expires);
1533        print <<EOF;
1534<?xml version="1.0" encoding="utf-8"?>
1535<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1536<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1537<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1538<!-- git core binaries version $git_version -->
1539<head>
1540<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1541<meta name="generator" content="gitweb/$version git/$git_version"/>
1542<meta name="robots" content="index, nofollow"/>
1543<title>$title</title>
1544EOF
1545# print out each stylesheet that exist
1546        if (defined $stylesheet) {
1547#provides backwards capability for those people who define style sheet in a config file
1548                print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1549        } else {
1550                foreach my $stylesheet (@stylesheets) {
1551                        next unless $stylesheet;
1552                        print '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'"/>'."\n";
1553                }
1554        }
1555        if (defined $project) {
1556                printf('<link rel="alternate" title="%s log" '.
1557                       'href="%s" type="application/rss+xml"/>'."\n",
1558                       esc_param($project), href(action=>"rss"));
1559        } else {
1560                printf('<link rel="alternate" title="%s projects list" '.
1561                       'href="%s" type="text/plain; charset=utf-8"/>'."\n",
1562                       $site_name, href(project=>undef, action=>"project_index"));
1563                printf('<link rel="alternate" title="%s projects logs" '.
1564                       'href="%s" type="text/x-opml"/>'."\n",
1565                       $site_name, href(project=>undef, action=>"opml"));
1566        }
1567        if (defined $favicon) {
1568                print qq(<link rel="shortcut icon" href="$favicon" type="image/png"/>\n);
1569        }
1570
1571        print "</head>\n" .
1572              "<body>\n";
1573
1574        if (-f $site_header) {
1575                open (my $fd, $site_header);
1576                print <$fd>;
1577                close $fd;
1578        }
1579
1580        print "<div class=\"page_header\">\n" .
1581              $cgi->a({-href => esc_url($logo_url),
1582                       -title => $logo_label},
1583                      qq(<img src="$logo" width="72" height="27" alt="git" class="logo"/>));
1584        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
1585        if (defined $project) {
1586                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1587                if (defined $action) {
1588                        print " / $action";
1589                }
1590                print "\n";
1591                if (!defined $searchtext) {
1592                        $searchtext = "";
1593                }
1594                my $search_hash;
1595                if (defined $hash_base) {
1596                        $search_hash = $hash_base;
1597                } elsif (defined $hash) {
1598                        $search_hash = $hash;
1599                } else {
1600                        $search_hash = "HEAD";
1601                }
1602                $cgi->param("a", "search");
1603                $cgi->param("h", $search_hash);
1604                $cgi->param("p", $project);
1605                print $cgi->startform(-method => "get", -action => $my_uri) .
1606                      "<div class=\"search\">\n" .
1607                      $cgi->hidden(-name => "p") . "\n" .
1608                      $cgi->hidden(-name => "a") . "\n" .
1609                      $cgi->hidden(-name => "h") . "\n" .
1610                      $cgi->popup_menu(-name => 'st', -default => 'commit',
1611                                       -values => ['commit', 'author', 'committer', 'pickaxe']) .
1612                      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
1613                      " search:\n",
1614                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1615                      "</div>" .
1616                      $cgi->end_form() . "\n";
1617        }
1618        print "</div>\n";
1619}
1620
1621sub git_footer_html {
1622        print "<div class=\"page_footer\">\n";
1623        if (defined $project) {
1624                my $descr = git_get_project_description($project);
1625                if (defined $descr) {
1626                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1627                }
1628                print $cgi->a({-href => href(action=>"rss"),
1629                              -class => "rss_logo"}, "RSS") . "\n";
1630        } else {
1631                print $cgi->a({-href => href(project=>undef, action=>"opml"),
1632                              -class => "rss_logo"}, "OPML") . " ";
1633                print $cgi->a({-href => href(project=>undef, action=>"project_index"),
1634                              -class => "rss_logo"}, "TXT") . "\n";
1635        }
1636        print "</div>\n" ;
1637
1638        if (-f $site_footer) {
1639                open (my $fd, $site_footer);
1640                print <$fd>;
1641                close $fd;
1642        }
1643
1644        print "</body>\n" .
1645              "</html>";
1646}
1647
1648sub die_error {
1649        my $status = shift || "403 Forbidden";
1650        my $error = shift || "Malformed query, file missing or permission denied";
1651
1652        git_header_html($status);
1653        print <<EOF;
1654<div class="page_body">
1655<br /><br />
1656$status - $error
1657<br />
1658</div>
1659EOF
1660        git_footer_html();
1661        exit;
1662}
1663
1664## ----------------------------------------------------------------------
1665## functions printing or outputting HTML: navigation
1666
1667sub git_print_page_nav {
1668        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1669        $extra = '' if !defined $extra; # pager or formats
1670
1671        my @navs = qw(summary shortlog log commit commitdiff tree);
1672        if ($suppress) {
1673                @navs = grep { $_ ne $suppress } @navs;
1674        }
1675
1676        my %arg = map { $_ => {action=>$_} } @navs;
1677        if (defined $head) {
1678                for (qw(commit commitdiff)) {
1679                        $arg{$_}{hash} = $head;
1680                }
1681                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1682                        for (qw(shortlog log)) {
1683                                $arg{$_}{hash} = $head;
1684                        }
1685                }
1686        }
1687        $arg{tree}{hash} = $treehead if defined $treehead;
1688        $arg{tree}{hash_base} = $treebase if defined $treebase;
1689
1690        print "<div class=\"page_nav\">\n" .
1691                (join " | ",
1692                 map { $_ eq $current ?
1693                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1694                 } @navs);
1695        print "<br/>\n$extra<br/>\n" .
1696              "</div>\n";
1697}
1698
1699sub format_paging_nav {
1700        my ($action, $hash, $head, $page, $nrevs) = @_;
1701        my $paging_nav;
1702
1703
1704        if ($hash ne $head || $page) {
1705                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1706        } else {
1707                $paging_nav .= "HEAD";
1708        }
1709
1710        if ($page > 0) {
1711                $paging_nav .= " &sdot; " .
1712                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1713                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1714        } else {
1715                $paging_nav .= " &sdot; prev";
1716        }
1717
1718        if ($nrevs >= (100 * ($page+1)-1)) {
1719                $paging_nav .= " &sdot; " .
1720                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1721                                 -accesskey => "n", -title => "Alt-n"}, "next");
1722        } else {
1723                $paging_nav .= " &sdot; next";
1724        }
1725
1726        return $paging_nav;
1727}
1728
1729## ......................................................................
1730## functions printing or outputting HTML: div
1731
1732sub git_print_header_div {
1733        my ($action, $title, $hash, $hash_base) = @_;
1734        my %args = ();
1735
1736        $args{action} = $action;
1737        $args{hash} = $hash if $hash;
1738        $args{hash_base} = $hash_base if $hash_base;
1739
1740        print "<div class=\"header\">\n" .
1741              $cgi->a({-href => href(%args), -class => "title"},
1742              $title ? $title : $action) .
1743              "\n</div>\n";
1744}
1745
1746#sub git_print_authorship (\%) {
1747sub git_print_authorship {
1748        my $co = shift;
1749
1750        my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
1751        print "<div class=\"author_date\">" .
1752              esc_html($co->{'author_name'}) .
1753              " [$ad{'rfc2822'}";
1754        if ($ad{'hour_local'} < 6) {
1755                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
1756                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1757        } else {
1758                printf(" (%02d:%02d %s)",
1759                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1760        }
1761        print "]</div>\n";
1762}
1763
1764sub git_print_page_path {
1765        my $name = shift;
1766        my $type = shift;
1767        my $hb = shift;
1768
1769
1770        print "<div class=\"page_path\">";
1771        print $cgi->a({-href => href(action=>"tree", hash_base=>$hb),
1772                      -title => 'tree root'}, "[$project]");
1773        print " / ";
1774        if (defined $name) {
1775                my @dirname = split '/', $name;
1776                my $basename = pop @dirname;
1777                my $fullname = '';
1778
1779                foreach my $dir (@dirname) {
1780                        $fullname .= ($fullname ? '/' : '') . $dir;
1781                        print $cgi->a({-href => href(action=>"tree", file_name=>$fullname,
1782                                                     hash_base=>$hb),
1783                                      -title => $fullname}, esc_html($dir));
1784                        print " / ";
1785                }
1786                if (defined $type && $type eq 'blob') {
1787                        print $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name,
1788                                                     hash_base=>$hb),
1789                                      -title => $name}, esc_html($basename));
1790                } elsif (defined $type && $type eq 'tree') {
1791                        print $cgi->a({-href => href(action=>"tree", file_name=>$file_name,
1792                                                     hash_base=>$hb),
1793                                      -title => $name}, esc_html($basename));
1794                        print " / ";
1795                } else {
1796                        print esc_html($basename);
1797                }
1798        }
1799        print "<br/></div>\n";
1800}
1801
1802# sub git_print_log (\@;%) {
1803sub git_print_log ($;%) {
1804        my $log = shift;
1805        my %opts = @_;
1806
1807        if ($opts{'-remove_title'}) {
1808                # remove title, i.e. first line of log
1809                shift @$log;
1810        }
1811        # remove leading empty lines
1812        while (defined $log->[0] && $log->[0] eq "") {
1813                shift @$log;
1814        }
1815
1816        # print log
1817        my $signoff = 0;
1818        my $empty = 0;
1819        foreach my $line (@$log) {
1820                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1821                        $signoff = 1;
1822                        $empty = 0;
1823                        if (! $opts{'-remove_signoff'}) {
1824                                print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
1825                                next;
1826                        } else {
1827                                # remove signoff lines
1828                                next;
1829                        }
1830                } else {
1831                        $signoff = 0;
1832                }
1833
1834                # print only one empty line
1835                # do not print empty line after signoff
1836                if ($line eq "") {
1837                        next if ($empty || $signoff);
1838                        $empty = 1;
1839                } else {
1840                        $empty = 0;
1841                }
1842
1843                print format_log_line_html($line) . "<br/>\n";
1844        }
1845
1846        if ($opts{'-final_empty_line'}) {
1847                # end with single empty line
1848                print "<br/>\n" unless $empty;
1849        }
1850}
1851
1852# print tree entry (row of git_tree), but without encompassing <tr> element
1853sub git_print_tree_entry {
1854        my ($t, $basedir, $hash_base, $have_blame) = @_;
1855
1856        my %base_key = ();
1857        $base_key{hash_base} = $hash_base if defined $hash_base;
1858
1859        # The format of a table row is: mode list link.  Where mode is
1860        # the mode of the entry, list is the name of the entry, an href,
1861        # and link is the action links of the entry.
1862
1863        print "<td class=\"mode\">" . mode_str($t->{'mode'}) . "</td>\n";
1864        if ($t->{'type'} eq "blob") {
1865                print "<td class=\"list\">" .
1866                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1867                                               file_name=>"$basedir$t->{'name'}", %base_key),
1868                                -class => "list"}, esc_html($t->{'name'})) . "</td>\n";
1869                print "<td class=\"link\">";
1870                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
1871                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1872                              "blob");
1873                if ($have_blame) {
1874                        print " | " .
1875                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
1876                                                           file_name=>"$basedir$t->{'name'}", %base_key)},
1877                                            "blame");
1878                }
1879                if (defined $hash_base) {
1880                        print " | " .
1881                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1882                                                     hash=>$t->{'hash'}, file_name=>"$basedir$t->{'name'}")},
1883                                      "history");
1884                }
1885                print " | " .
1886                        $cgi->a({-href => href(action=>"blob_plain", hash_base=>$hash_base,
1887                                               file_name=>"$basedir$t->{'name'}")},
1888                                "raw");
1889                print "</td>\n";
1890
1891        } elsif ($t->{'type'} eq "tree") {
1892                print "<td class=\"list\">";
1893                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1894                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1895                              esc_html($t->{'name'}));
1896                print "</td>\n";
1897                print "<td class=\"link\">";
1898                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
1899                                             file_name=>"$basedir$t->{'name'}", %base_key)},
1900                              "tree");
1901                if (defined $hash_base) {
1902                        print " | " .
1903                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
1904                                                     file_name=>"$basedir$t->{'name'}")},
1905                                      "history");
1906                }
1907                print "</td>\n";
1908        }
1909}
1910
1911## ......................................................................
1912## functions printing large fragments of HTML
1913
1914sub git_difftree_body {
1915        my ($difftree, $hash, $parent) = @_;
1916
1917        print "<div class=\"list_head\">\n";
1918        if ($#{$difftree} > 10) {
1919                print(($#{$difftree} + 1) . " files changed:\n");
1920        }
1921        print "</div>\n";
1922
1923        print "<table class=\"diff_tree\">\n";
1924        my $alternate = 1;
1925        my $patchno = 0;
1926        foreach my $line (@{$difftree}) {
1927                my %diff = parse_difftree_raw_line($line);
1928
1929                if ($alternate) {
1930                        print "<tr class=\"dark\">\n";
1931                } else {
1932                        print "<tr class=\"light\">\n";
1933                }
1934                $alternate ^= 1;
1935
1936                my ($to_mode_oct, $to_mode_str, $to_file_type);
1937                my ($from_mode_oct, $from_mode_str, $from_file_type);
1938                if ($diff{'to_mode'} ne ('0' x 6)) {
1939                        $to_mode_oct = oct $diff{'to_mode'};
1940                        if (S_ISREG($to_mode_oct)) { # only for regular file
1941                                $to_mode_str = sprintf("%04o", $to_mode_oct & 0777); # permission bits
1942                        }
1943                        $to_file_type = file_type($diff{'to_mode'});
1944                }
1945                if ($diff{'from_mode'} ne ('0' x 6)) {
1946                        $from_mode_oct = oct $diff{'from_mode'};
1947                        if (S_ISREG($to_mode_oct)) { # only for regular file
1948                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
1949                        }
1950                        $from_file_type = file_type($diff{'from_mode'});
1951                }
1952
1953                if ($diff{'status'} eq "A") { # created
1954                        my $mode_chng = "<span class=\"file_status new\">[new $to_file_type";
1955                        $mode_chng   .= " with mode: $to_mode_str" if $to_mode_str;
1956                        $mode_chng   .= "]</span>";
1957                        print "<td>";
1958                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
1959                                                     hash_base=>$hash, file_name=>$diff{'file'}),
1960                                      -class => "list"}, esc_html($diff{'file'}));
1961                        print "</td>\n";
1962                        print "<td>$mode_chng</td>\n";
1963                        print "<td class=\"link\">";
1964                        if ($action eq 'commitdiff') {
1965                                # link to patch
1966                                $patchno++;
1967                                print $cgi->a({-href => "#patch$patchno"}, "patch");
1968                        }
1969                        print "</td>\n";
1970
1971                } elsif ($diff{'status'} eq "D") { # deleted
1972                        my $mode_chng = "<span class=\"file_status deleted\">[deleted $from_file_type]</span>";
1973                        print "<td>";
1974                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1975                                                     hash_base=>$parent, file_name=>$diff{'file'}),
1976                                       -class => "list"}, esc_html($diff{'file'}));
1977                        print "</td>\n";
1978                        print "<td>$mode_chng</td>\n";
1979                        print "<td class=\"link\">";
1980                        if ($action eq 'commitdiff') {
1981                                # link to patch
1982                                $patchno++;
1983                                print $cgi->a({-href => "#patch$patchno"}, "patch");
1984                                print " | ";
1985                        }
1986                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
1987                                                     hash_base=>$parent, file_name=>$diff{'file'})},
1988                                      "blob") . " | ";
1989                        print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
1990                                                     file_name=>$diff{'file'})},
1991                                      "blame") . " | ";
1992                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
1993                                                     file_name=>$diff{'file'})},
1994                                      "history");
1995                        print "</td>\n";
1996
1997                } elsif ($diff{'status'} eq "M" || $diff{'status'} eq "T") { # modified, or type changed
1998                        my $mode_chnge = "";
1999                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2000                                $mode_chnge = "<span class=\"file_status mode_chnge\">[changed";
2001                                if ($from_file_type != $to_file_type) {
2002                                        $mode_chnge .= " from $from_file_type to $to_file_type";
2003                                }
2004                                if (($from_mode_oct & 0777) != ($to_mode_oct & 0777)) {
2005                                        if ($from_mode_str && $to_mode_str) {
2006                                                $mode_chnge .= " mode: $from_mode_str->$to_mode_str";
2007                                        } elsif ($to_mode_str) {
2008                                                $mode_chnge .= " mode: $to_mode_str";
2009                                        }
2010                                }
2011                                $mode_chnge .= "]</span>\n";
2012                        }
2013                        print "<td>";
2014                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2015                                                     hash_base=>$hash, file_name=>$diff{'file'}),
2016                                      -class => "list"}, esc_html($diff{'file'}));
2017                        print "</td>\n";
2018                        print "<td>$mode_chnge</td>\n";
2019                        print "<td class=\"link\">";
2020                        if ($action eq 'commitdiff') {
2021                                # link to patch
2022                                $patchno++;
2023                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2024                                      " | ";
2025                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2026                                # "commit" view and modified file (not onlu mode changed)
2027                                print $cgi->a({-href => href(action=>"blobdiff",
2028                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2029                                                             hash_base=>$hash, hash_parent_base=>$parent,
2030                                                             file_name=>$diff{'file'})},
2031                                              "diff") .
2032                                      " | ";
2033                        }
2034                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'to_id'},
2035                                                     hash_base=>$hash, file_name=>$diff{'file'})},
2036                                      "blob") . " | ";
2037                        print $cgi->a({-href => href(action=>"blame", hash_base=>$hash,
2038                                                     file_name=>$diff{'file'})},
2039                                      "blame") . " | ";
2040                        print $cgi->a({-href => href(action=>"history", hash_base=>$hash,
2041                                                     file_name=>$diff{'file'})},
2042                                      "history");
2043                        print "</td>\n";
2044
2045                } elsif ($diff{'status'} eq "R" || $diff{'status'} eq "C") { # renamed or copied
2046                        my %status_name = ('R' => 'moved', 'C' => 'copied');
2047                        my $nstatus = $status_name{$diff{'status'}};
2048                        my $mode_chng = "";
2049                        if ($diff{'from_mode'} != $diff{'to_mode'}) {
2050                                # mode also for directories, so we cannot use $to_mode_str
2051                                $mode_chng = sprintf(", mode: %04o", $to_mode_oct & 0777);
2052                        }
2053                        print "<td>" .
2054                              $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2055                                                     hash=>$diff{'to_id'}, file_name=>$diff{'to_file'}),
2056                                      -class => "list"}, esc_html($diff{'to_file'})) . "</td>\n" .
2057                              "<td><span class=\"file_status $nstatus\">[$nstatus from " .
2058                              $cgi->a({-href => href(action=>"blob", hash_base=>$parent,
2059                                                     hash=>$diff{'from_id'}, file_name=>$diff{'from_file'}),
2060                                      -class => "list"}, esc_html($diff{'from_file'})) .
2061                              " with " . (int $diff{'similarity'}) . "% similarity$mode_chng]</span></td>\n" .
2062                              "<td class=\"link\">";
2063                        if ($action eq 'commitdiff') {
2064                                # link to patch
2065                                $patchno++;
2066                                print $cgi->a({-href => "#patch$patchno"}, "patch") .
2067                                      " | ";
2068                        } elsif ($diff{'to_id'} ne $diff{'from_id'}) {
2069                                # "commit" view and modified file (not only pure rename or copy)
2070                                print $cgi->a({-href => href(action=>"blobdiff",
2071                                                             hash=>$diff{'to_id'}, hash_parent=>$diff{'from_id'},
2072                                                             hash_base=>$hash, hash_parent_base=>$parent,
2073                                                             file_name=>$diff{'to_file'}, file_parent=>$diff{'from_file'})},
2074                                              "diff") .
2075                                      " | ";
2076                        }
2077                        print $cgi->a({-href => href(action=>"blob", hash=>$diff{'from_id'},
2078                                                     hash_base=>$parent, file_name=>$diff{'from_file'})},
2079                                      "blob") . " | ";
2080                        print $cgi->a({-href => href(action=>"blame", hash_base=>$parent,
2081                                                     file_name=>$diff{'from_file'})},
2082                                      "blame") . " | ";
2083                        print $cgi->a({-href => href(action=>"history", hash_base=>$parent,
2084                                                    file_name=>$diff{'from_file'})},
2085                                      "history");
2086                        print "</td>\n";
2087
2088                } # we should not encounter Unmerged (U) or Unknown (X) status
2089                print "</tr>\n";
2090        }
2091        print "</table>\n";
2092}
2093
2094sub git_patchset_body {
2095        my ($fd, $difftree, $hash, $hash_parent) = @_;
2096
2097        my $patch_idx = 0;
2098        my $in_header = 0;
2099        my $patch_found = 0;
2100        my $diffinfo;
2101
2102        print "<div class=\"patchset\">\n";
2103
2104        LINE:
2105        while (my $patch_line = <$fd>) {
2106                chomp $patch_line;
2107
2108                if ($patch_line =~ m/^diff /) { # "git diff" header
2109                        # beginning of patch (in patchset)
2110                        if ($patch_found) {
2111                                # close previous patch
2112                                print "</div>\n"; # class="patch"
2113                        } else {
2114                                # first patch in patchset
2115                                $patch_found = 1;
2116                        }
2117                        print "<div class=\"patch\" id=\"patch". ($patch_idx+1) ."\">\n";
2118
2119                        if (ref($difftree->[$patch_idx]) eq "HASH") {
2120                                $diffinfo = $difftree->[$patch_idx];
2121                        } else {
2122                                $diffinfo = parse_difftree_raw_line($difftree->[$patch_idx]);
2123                        }
2124                        $patch_idx++;
2125
2126                        if ($diffinfo->{'status'} eq "A") { # added
2127                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'to_mode'}) . ":" .
2128                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2129                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2130                                              $diffinfo->{'to_id'}) . " (new)" .
2131                                      "</div>\n"; # class="diff_info"
2132
2133                        } elsif ($diffinfo->{'status'} eq "D") { # deleted
2134                                print "<div class=\"diff_info\">" . file_type($diffinfo->{'from_mode'}) . ":" .
2135                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2136                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2137                                              $diffinfo->{'from_id'}) . " (deleted)" .
2138                                      "</div>\n"; # class="diff_info"
2139
2140                        } elsif ($diffinfo->{'status'} eq "R" || # renamed
2141                                 $diffinfo->{'status'} eq "C" || # copied
2142                                 $diffinfo->{'status'} eq "2") { # with two filenames (from git_blobdiff)
2143                                print "<div class=\"diff_info\">" .
2144                                      file_type($diffinfo->{'from_mode'}) . ":" .
2145                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2146                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'from_file'})},
2147                                              $diffinfo->{'from_id'}) .
2148                                      " -> " .
2149                                      file_type($diffinfo->{'to_mode'}) . ":" .
2150                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2151                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'to_file'})},
2152                                              $diffinfo->{'to_id'});
2153                                print "</div>\n"; # class="diff_info"
2154
2155                        } else { # modified, mode changed, ...
2156                                print "<div class=\"diff_info\">" .
2157                                      file_type($diffinfo->{'from_mode'}) . ":" .
2158                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2159                                                             hash=>$diffinfo->{'from_id'}, file_name=>$diffinfo->{'file'})},
2160                                              $diffinfo->{'from_id'}) .
2161                                      " -> " .
2162                                      file_type($diffinfo->{'to_mode'}) . ":" .
2163                                      $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2164                                                             hash=>$diffinfo->{'to_id'}, file_name=>$diffinfo->{'file'})},
2165                                              $diffinfo->{'to_id'});
2166                                print "</div>\n"; # class="diff_info"
2167                        }
2168
2169                        #print "<div class=\"diff extended_header\">\n";
2170                        $in_header = 1;
2171                        next LINE;
2172                } # start of patch in patchset
2173
2174
2175                if ($in_header && $patch_line =~ m/^---/) {
2176                        #print "</div>\n"; # class="diff extended_header"
2177                        $in_header = 0;
2178
2179                        my $file = $diffinfo->{'from_file'};
2180                        $file  ||= $diffinfo->{'file'};
2181                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent,
2182                                                       hash=>$diffinfo->{'from_id'}, file_name=>$file),
2183                                        -class => "list"}, esc_html($file));
2184                        $patch_line =~ s|a/.*$|a/$file|g;
2185                        print "<div class=\"diff from_file\">$patch_line</div>\n";
2186
2187                        $patch_line = <$fd>;
2188                        chomp $patch_line;
2189
2190                        #$patch_line =~ m/^+++/;
2191                        $file    = $diffinfo->{'to_file'};
2192                        $file  ||= $diffinfo->{'file'};
2193                        $file = $cgi->a({-href => href(action=>"blob", hash_base=>$hash,
2194                                                       hash=>$diffinfo->{'to_id'}, file_name=>$file),
2195                                        -class => "list"}, esc_html($file));
2196                        $patch_line =~ s|b/.*|b/$file|g;
2197                        print "<div class=\"diff to_file\">$patch_line</div>\n";
2198
2199                        next LINE;
2200                }
2201                next LINE if $in_header;
2202
2203                print format_diff_line($patch_line);
2204        }
2205        print "</div>\n" if $patch_found; # class="patch"
2206
2207        print "</div>\n"; # class="patchset"
2208}
2209
2210# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2211
2212sub git_project_list_body {
2213        my ($projlist, $order, $from, $to, $extra, $no_header) = @_;
2214
2215        my $check_forks = gitweb_check_feature('forks');
2216
2217        my @projects;
2218        foreach my $pr (@$projlist) {
2219                my (@aa) = git_get_last_activity($pr->{'path'});
2220                unless (@aa) {
2221                        next;
2222                }
2223                ($pr->{'age'}, $pr->{'age_string'}) = @aa;
2224                if (!defined $pr->{'descr'}) {
2225                        my $descr = git_get_project_description($pr->{'path'}) || "";
2226                        $pr->{'descr'} = chop_str($descr, 25, 5);
2227                }
2228                if (!defined $pr->{'owner'}) {
2229                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
2230                }
2231                if ($check_forks) {
2232                        my $pname = $pr->{'path'};
2233                        $pname =~ s/\.git$//;
2234                        $pr->{'forks'} = -d "$projectroot/$pname";
2235                }
2236                push @projects, $pr;
2237        }
2238
2239        $order ||= "project";
2240        $from = 0 unless defined $from;
2241        $to = $#projects if (!defined $to || $#projects < $to);
2242
2243        print "<table class=\"project_list\">\n";
2244        unless ($no_header) {
2245                print "<tr>\n";
2246                if ($check_forks) {
2247                        print "<th></th>\n";
2248                }
2249                if ($order eq "project") {
2250                        @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
2251                        print "<th>Project</th>\n";
2252                } else {
2253                        print "<th>" .
2254                              $cgi->a({-href => href(project=>undef, order=>'project'),
2255                                       -class => "header"}, "Project") .
2256                              "</th>\n";
2257                }
2258                if ($order eq "descr") {
2259                        @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
2260                        print "<th>Description</th>\n";
2261                } else {
2262                        print "<th>" .
2263                              $cgi->a({-href => href(project=>undef, order=>'descr'),
2264                                       -class => "header"}, "Description") .
2265                              "</th>\n";
2266                }
2267                if ($order eq "owner") {
2268                        @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
2269                        print "<th>Owner</th>\n";
2270                } else {
2271                        print "<th>" .
2272                              $cgi->a({-href => href(project=>undef, order=>'owner'),
2273                                       -class => "header"}, "Owner") .
2274                              "</th>\n";
2275                }
2276                if ($order eq "age") {
2277                        @projects = sort {$a->{'age'} <=> $b->{'age'}} @projects;
2278                        print "<th>Last Change</th>\n";
2279                } else {
2280                        print "<th>" .
2281                              $cgi->a({-href => href(project=>undef, order=>'age'),
2282                                       -class => "header"}, "Last Change") .
2283                              "</th>\n";
2284                }
2285                print "<th></th>\n" .
2286                      "</tr>\n";
2287        }
2288        my $alternate = 1;
2289        for (my $i = $from; $i <= $to; $i++) {
2290                my $pr = $projects[$i];
2291                if ($alternate) {
2292                        print "<tr class=\"dark\">\n";
2293                } else {
2294                        print "<tr class=\"light\">\n";
2295                }
2296                $alternate ^= 1;
2297                if ($check_forks) {
2298                        print "<td>";
2299                        if ($pr->{'forks'}) {
2300                                print $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "+");
2301                        }
2302                        print "</td>\n";
2303                }
2304                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
2305                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
2306                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
2307                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
2308                print "<td class=\"". age_class($pr->{'age'}) . "\">" .
2309                      $pr->{'age_string'} . "</td>\n" .
2310                      "<td class=\"link\">" .
2311                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
2312                      $cgi->a({-href => '/git-browser/by-commit.html?r='.$pr->{'path'}}, "graphiclog") . " | " .
2313                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") . " | " .
2314                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"tree")}, "tree") .
2315                      ($pr->{'forks'} ? " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"forks")}, "forks") : '') .
2316                      "</td>\n" .
2317                      "</tr>\n";
2318        }
2319        if (defined $extra) {
2320                print "<tr>\n";
2321                if ($check_forks) {
2322                        print "<td></td>\n";
2323                }
2324                print "<td colspan=\"5\">$extra</td>\n" .
2325                      "</tr>\n";
2326        }
2327        print "</table>\n";
2328}
2329
2330sub git_shortlog_body {
2331        # uses global variable $project
2332        my ($revlist, $from, $to, $refs, $extra) = @_;
2333
2334        $from = 0 unless defined $from;
2335        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
2336
2337        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
2338        my $alternate = 1;
2339        for (my $i = $from; $i <= $to; $i++) {
2340                my $commit = $revlist->[$i];
2341                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
2342                my $ref = format_ref_marker($refs, $commit);
2343                my %co = parse_commit($commit);
2344                if ($alternate) {
2345                        print "<tr class=\"dark\">\n";
2346                } else {
2347                        print "<tr class=\"light\">\n";
2348                }
2349                $alternate ^= 1;
2350                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
2351                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2352                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2353                      "<td>";
2354                print format_subject_html($co{'title'}, $co{'title_short'},
2355                                          href(action=>"commit", hash=>$commit), $ref);
2356                print "</td>\n" .
2357                      "<td class=\"link\">" .
2358                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
2359                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
2360                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree");
2361                if (gitweb_have_snapshot()) {
2362                        print " | " . $cgi->a({-href => href(action=>"snapshot", hash=>$commit)}, "snapshot");
2363                }
2364                print "</td>\n" .
2365                      "</tr>\n";
2366        }
2367        if (defined $extra) {
2368                print "<tr>\n" .
2369                      "<td colspan=\"4\">$extra</td>\n" .
2370                      "</tr>\n";
2371        }
2372        print "</table>\n";
2373}
2374
2375sub git_history_body {
2376        # Warning: assumes constant type (blob or tree) during history
2377        my ($revlist, $from, $to, $refs, $hash_base, $ftype, $extra) = @_;
2378
2379        $from = 0 unless defined $from;
2380        $to = $#{$revlist} unless (defined $to && $to <= $#{$revlist});
2381
2382        print "<table class=\"history\" cellspacing=\"0\">\n";
2383        my $alternate = 1;
2384        for (my $i = $from; $i <= $to; $i++) {
2385                if ($revlist->[$i] !~ m/^([0-9a-fA-F]{40})/) {
2386                        next;
2387                }
2388
2389                my $commit = $1;
2390                my %co = parse_commit($commit);
2391                if (!%co) {
2392                        next;
2393                }
2394
2395                my $ref = format_ref_marker($refs, $commit);
2396
2397                if ($alternate) {
2398                        print "<tr class=\"dark\">\n";
2399                } else {
2400                        print "<tr class=\"light\">\n";
2401                }
2402                $alternate ^= 1;
2403                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2404                      # shortlog uses      chop_str($co{'author_name'}, 10)
2405                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2406                      "<td>";
2407                # originally git_history used chop_str($co{'title'}, 50)
2408                print format_subject_html($co{'title'}, $co{'title_short'},
2409                                          href(action=>"commit", hash=>$commit), $ref);
2410                print "</td>\n" .
2411                      "<td class=\"link\">" .
2412                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
2413                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
2414
2415                if ($ftype eq 'blob') {
2416                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
2417                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
2418                        if (defined $blob_current && defined $blob_parent &&
2419                                        $blob_current ne $blob_parent) {
2420                                print " | " .
2421                                        $cgi->a({-href => href(action=>"blobdiff",
2422                                                               hash=>$blob_current, hash_parent=>$blob_parent,
2423                                                               hash_base=>$hash_base, hash_parent_base=>$commit,
2424                                                               file_name=>$file_name)},
2425                                                "diff to current");
2426                        }
2427                }
2428                print "</td>\n" .
2429                      "</tr>\n";
2430        }
2431        if (defined $extra) {
2432                print "<tr>\n" .
2433                      "<td colspan=\"4\">$extra</td>\n" .
2434                      "</tr>\n";
2435        }
2436        print "</table>\n";
2437}
2438
2439sub git_tags_body {
2440        # uses global variable $project
2441        my ($taglist, $from, $to, $extra) = @_;
2442        $from = 0 unless defined $from;
2443        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
2444
2445        print "<table class=\"tags\" cellspacing=\"0\">\n";
2446        my $alternate = 1;
2447        for (my $i = $from; $i <= $to; $i++) {
2448                my $entry = $taglist->[$i];
2449                my %tag = %$entry;
2450                my $comment = $tag{'subject'};
2451                my $comment_short;
2452                if (defined $comment) {
2453                        $comment_short = chop_str($comment, 30, 5);
2454                }
2455                if ($alternate) {
2456                        print "<tr class=\"dark\">\n";
2457                } else {
2458                        print "<tr class=\"light\">\n";
2459                }
2460                $alternate ^= 1;
2461                print "<td><i>$tag{'age'}</i></td>\n" .
2462                      "<td>" .
2463                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
2464                               -class => "list name"}, esc_html($tag{'name'})) .
2465                      "</td>\n" .
2466                      "<td>";
2467                if (defined $comment) {
2468                        print format_subject_html($comment, $comment_short,
2469                                                  href(action=>"tag", hash=>$tag{'id'}));
2470                }
2471                print "</td>\n" .
2472                      "<td class=\"selflink\">";
2473                if ($tag{'type'} eq "tag") {
2474                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
2475                } else {
2476                        print "&nbsp;";
2477                }
2478                print "</td>\n" .
2479                      "<td class=\"link\">" . " | " .
2480                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
2481                if ($tag{'reftype'} eq "commit") {
2482                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
2483                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log");
2484                } elsif ($tag{'reftype'} eq "blob") {
2485                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
2486                }
2487                print "</td>\n" .
2488                      "</tr>";
2489        }
2490        if (defined $extra) {
2491                print "<tr>\n" .
2492                      "<td colspan=\"5\">$extra</td>\n" .
2493                      "</tr>\n";
2494        }
2495        print "</table>\n";
2496}
2497
2498sub git_heads_body {
2499        # uses global variable $project
2500        my ($headlist, $head, $from, $to, $extra) = @_;
2501        $from = 0 unless defined $from;
2502        $to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
2503
2504        print "<table class=\"heads\" cellspacing=\"0\">\n";
2505        my $alternate = 1;
2506        for (my $i = $from; $i <= $to; $i++) {
2507                my $entry = $headlist->[$i];
2508                my %ref = %$entry;
2509                my $curr = $ref{'id'} eq $head;
2510                if ($alternate) {
2511                        print "<tr class=\"dark\">\n";
2512                } else {
2513                        print "<tr class=\"light\">\n";
2514                }
2515                $alternate ^= 1;
2516                print "<td><i>$ref{'age'}</i></td>\n" .
2517                      ($curr ? "<td class=\"current_head\">" : "<td>") .
2518                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'}),
2519                               -class => "list name"},esc_html($ref{'name'})) .
2520                      "</td>\n" .
2521                      "<td class=\"link\">" .
2522                      $cgi->a({-href => href(action=>"shortlog", hash=>$ref{'name'})}, "shortlog") . " | " .
2523                      $cgi->a({-href => href(action=>"log", hash=>$ref{'name'})}, "log") . " | " .
2524                      $cgi->a({-href => href(action=>"tree", hash=>$ref{'name'}, hash_base=>$ref{'name'})}, "tree") .
2525                      "</td>\n" .
2526                      "</tr>";
2527        }
2528        if (defined $extra) {
2529                print "<tr>\n" .
2530                      "<td colspan=\"3\">$extra</td>\n" .
2531                      "</tr>\n";
2532        }
2533        print "</table>\n";
2534}
2535
2536## ======================================================================
2537## ======================================================================
2538## actions
2539
2540sub git_project_list {
2541        my $order = $cgi->param('o');
2542        if (defined $order && $order !~ m/project|descr|owner|age/) {
2543                die_error(undef, "Unknown order parameter");
2544        }
2545
2546        my @list = git_get_projects_list();
2547        if (!@list) {
2548                die_error(undef, "No projects found");
2549        }
2550
2551        git_header_html();
2552        if (-f $home_text) {
2553                print "<div class=\"index_include\">\n";
2554                open (my $fd, $home_text);
2555                print <$fd>;
2556                close $fd;
2557                print "</div>\n";
2558        }
2559        git_project_list_body(\@list, $order);
2560        git_footer_html();
2561}
2562
2563sub git_forks {
2564        my $order = $cgi->param('o');
2565        if (defined $order && $order !~ m/project|descr|owner|age/) {
2566                die_error(undef, "Unknown order parameter");
2567        }
2568
2569        my @list = git_get_projects_list($project);
2570        if (!@list) {
2571                die_error(undef, "No forks found");
2572        }
2573
2574        git_header_html();
2575        git_print_page_nav('','');
2576        git_print_header_div('summary', "$project forks");
2577        git_project_list_body(\@list, $order);
2578        git_footer_html();
2579}
2580
2581sub git_project_index {
2582        my @projects = git_get_projects_list($project);
2583
2584        print $cgi->header(
2585                -type => 'text/plain',
2586                -charset => 'utf-8',
2587                -content_disposition => 'inline; filename="index.aux"');
2588
2589        foreach my $pr (@projects) {
2590                if (!exists $pr->{'owner'}) {
2591                        $pr->{'owner'} = get_file_owner("$projectroot/$project");
2592                }
2593
2594                my ($path, $owner) = ($pr->{'path'}, $pr->{'owner'});
2595                # quote as in CGI::Util::encode, but keep the slash, and use '+' for ' '
2596                $path  =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2597                $owner =~ s/([^a-zA-Z0-9_.\-\/ ])/sprintf("%%%02X", ord($1))/eg;
2598                $path  =~ s/ /\+/g;
2599                $owner =~ s/ /\+/g;
2600
2601                print "$path $owner\n";
2602        }
2603}
2604
2605sub git_summary {
2606        my $descr = git_get_project_description($project) || "none";
2607        my $head = git_get_head_hash($project);
2608        my %co = parse_commit($head);
2609        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2610
2611        my $owner = git_get_project_owner($project);
2612
2613        my $refs = git_get_references();
2614        my @taglist  = git_get_tags_list(15);
2615        my @headlist = git_get_heads_list(15);
2616        my @forklist;
2617        if (gitweb_check_feature('forks')) {
2618                @forklist = git_get_projects_list($project);
2619        }
2620
2621        git_header_html();
2622        git_print_page_nav('summary','', $head);
2623
2624        print "<div class=\"title\">&nbsp;</div>\n";
2625        print "<table cellspacing=\"0\">\n" .
2626              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
2627              "<tr><td>owner</td><td>$owner</td></tr>\n" .
2628              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
2629        # use per project git URL list in $projectroot/$project/cloneurl
2630        # or make project git URL from git base URL and project name
2631        my $url_tag = "URL";
2632        my @url_list = git_get_project_url_list($project);
2633        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
2634        foreach my $git_url (@url_list) {
2635                next unless $git_url;
2636                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
2637                $url_tag = "";
2638        }
2639        print "</table>\n";
2640
2641        if (-s "$projectroot/$project/README.html") {
2642                if (open my $fd, "$projectroot/$project/README.html") {
2643                        print "<div class=\"title\">readme</div>\n";
2644                        print $_ while (<$fd>);
2645                        close $fd;
2646                }
2647        }
2648
2649        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=17",
2650                git_get_head_hash($project), "--"
2651                or die_error(undef, "Open git-rev-list failed");
2652        my @revlist = map { chomp; $_ } <$fd>;
2653        close $fd;
2654        git_print_header_div('shortlog');
2655        git_shortlog_body(\@revlist, 0, 15, $refs,
2656                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
2657
2658        if (@taglist) {
2659                git_print_header_div('tags');
2660                git_tags_body(\@taglist, 0, 15,
2661                              $cgi->a({-href => href(action=>"tags")}, "..."));
2662        }
2663
2664        if (@headlist) {
2665                git_print_header_div('heads');
2666                git_heads_body(\@headlist, $head, 0, 15,
2667                               $cgi->a({-href => href(action=>"heads")}, "..."));
2668        }
2669
2670        if (@forklist) {
2671                git_print_header_div('forks');
2672                git_project_list_body(\@forklist, undef, 0, 15,
2673                                      $cgi->a({-href => href(action=>"forks")}, "..."),
2674                                      'noheader');
2675        }
2676
2677        git_footer_html();
2678}
2679
2680sub git_tag {
2681        my $head = git_get_head_hash($project);
2682        git_header_html();
2683        git_print_page_nav('','', $head,undef,$head);
2684        my %tag = parse_tag($hash);
2685        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
2686        print "<div class=\"title_text\">\n" .
2687              "<table cellspacing=\"0\">\n" .
2688              "<tr>\n" .
2689              "<td>object</td>\n" .
2690              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2691                               $tag{'object'}) . "</td>\n" .
2692              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
2693                                              $tag{'type'}) . "</td>\n" .
2694              "</tr>\n";
2695        if (defined($tag{'author'})) {
2696                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
2697                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
2698                print "<tr><td></td><td>" . $ad{'rfc2822'} .
2699                        sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) .
2700                        "</td></tr>\n";
2701        }
2702        print "</table>\n\n" .
2703              "</div>\n";
2704        print "<div class=\"page_body\">";
2705        my $comment = $tag{'comment'};
2706        foreach my $line (@$comment) {
2707                print esc_html($line) . "<br/>\n";
2708        }
2709        print "</div>\n";
2710        git_footer_html();
2711}
2712
2713sub git_blame2 {
2714        my $fd;
2715        my $ftype;
2716
2717        my ($have_blame) = gitweb_check_feature('blame');
2718        if (!$have_blame) {
2719                die_error('403 Permission denied', "Permission denied");
2720        }
2721        die_error('404 Not Found', "File name not defined") if (!$file_name);
2722        $hash_base ||= git_get_head_hash($project);
2723        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2724        my %co = parse_commit($hash_base)
2725                or die_error(undef, "Reading commit failed");
2726        if (!defined $hash) {
2727                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2728                        or die_error(undef, "Error looking up file");
2729        }
2730        $ftype = git_get_type($hash);
2731        if ($ftype !~ "blob") {
2732                die_error("400 Bad Request", "Object is not a blob");
2733        }
2734        open ($fd, "-|", git_cmd(), "blame", '-p', '--',
2735              $file_name, $hash_base)
2736                or die_error(undef, "Open git-blame failed");
2737        git_header_html();
2738        my $formats_nav =
2739                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2740                        "blob") .
2741                " | " .
2742                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2743                        "history") .
2744                " | " .
2745                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2746                        "HEAD");
2747        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2748        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2749        git_print_page_path($file_name, $ftype, $hash_base);
2750        my @rev_color = (qw(light2 dark2));
2751        my $num_colors = scalar(@rev_color);
2752        my $current_color = 0;
2753        my $last_rev;
2754        print <<HTML;
2755<div class="page_body">
2756<table class="blame">
2757<tr><th>Commit</th><th>Line</th><th>Data</th></tr>
2758HTML
2759        my %metainfo = ();
2760        while (1) {
2761                $_ = <$fd>;
2762                last unless defined $_;
2763                my ($full_rev, $orig_lineno, $lineno, $group_size) =
2764                    /^([0-9a-f]{40}) (\d+) (\d+)(?: (\d+))?$/;
2765                if (!exists $metainfo{$full_rev}) {
2766                        $metainfo{$full_rev} = {};
2767                }
2768                my $meta = $metainfo{$full_rev};
2769                while (<$fd>) {
2770                        last if (s/^\t//);
2771                        if (/^(\S+) (.*)$/) {
2772                                $meta->{$1} = $2;
2773                        }
2774                }
2775                my $data = $_;
2776                my $rev = substr($full_rev, 0, 8);
2777                my $author = $meta->{'author'};
2778                my %date = parse_date($meta->{'author-time'},
2779                                      $meta->{'author-tz'});
2780                my $date = $date{'iso-tz'};
2781                if ($group_size) {
2782                        $current_color = ++$current_color % $num_colors;
2783                }
2784                print "<tr class=\"$rev_color[$current_color]\">\n";
2785                if ($group_size) {
2786                        print "<td class=\"sha1\"";
2787                        print " title=\"". esc_html($author) . ", $date\"";
2788                        print " rowspan=\"$group_size\"" if ($group_size > 1);
2789                        print ">";
2790                        print $cgi->a({-href => href(action=>"commit",
2791                                                     hash=>$full_rev,
2792                                                     file_name=>$file_name)},
2793                                      esc_html($rev));
2794                        print "</td>\n";
2795                }
2796                my $blamed = href(action => 'blame',
2797                                  file_name => $meta->{'filename'},
2798                                  hash_base => $full_rev);
2799                print "<td class=\"linenr\">";
2800                print $cgi->a({ -href => "$blamed#l$orig_lineno",
2801                                -id => "l$lineno",
2802                                -class => "linenr" },
2803                              esc_html($lineno));
2804                print "</td>";
2805                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
2806                print "</tr>\n";
2807        }
2808        print "</table>\n";
2809        print "</div>";
2810        close $fd
2811                or print "Reading blob failed\n";
2812        git_footer_html();
2813}
2814
2815sub git_blame {
2816        my $fd;
2817
2818        my ($have_blame) = gitweb_check_feature('blame');
2819        if (!$have_blame) {
2820                die_error('403 Permission denied', "Permission denied");
2821        }
2822        die_error('404 Not Found', "File name not defined") if (!$file_name);
2823        $hash_base ||= git_get_head_hash($project);
2824        die_error(undef, "Couldn't find base commit") unless ($hash_base);
2825        my %co = parse_commit($hash_base)
2826                or die_error(undef, "Reading commit failed");
2827        if (!defined $hash) {
2828                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
2829                        or die_error(undef, "Error lookup file");
2830        }
2831        open ($fd, "-|", git_cmd(), "annotate", '-l', '-t', '-r', $file_name, $hash_base)
2832                or die_error(undef, "Open git-annotate failed");
2833        git_header_html();
2834        my $formats_nav =
2835                $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2836                        "blob") .
2837                " | " .
2838                $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)},
2839                        "history") .
2840                " | " .
2841                $cgi->a({-href => href(action=>"blame", file_name=>$file_name)},
2842                        "HEAD");
2843        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2844        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2845        git_print_page_path($file_name, 'blob', $hash_base);
2846        print "<div class=\"page_body\">\n";
2847        print <<HTML;
2848<table class="blame">
2849  <tr>
2850    <th>Commit</th>
2851    <th>Age</th>
2852    <th>Author</th>
2853    <th>Line</th>
2854    <th>Data</th>
2855  </tr>
2856HTML
2857        my @line_class = (qw(light dark));
2858        my $line_class_len = scalar (@line_class);
2859        my $line_class_num = $#line_class;
2860        while (my $line = <$fd>) {
2861                my $long_rev;
2862                my $short_rev;
2863                my $author;
2864                my $time;
2865                my $lineno;
2866                my $data;
2867                my $age;
2868                my $age_str;
2869                my $age_class;
2870
2871                chomp $line;
2872                $line_class_num = ($line_class_num + 1) % $line_class_len;
2873
2874                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) [+-]\d\d\d\d\t(\d+)\)(.*)$/) {
2875                        $long_rev = $1;
2876                        $author   = $2;
2877                        $time     = $3;
2878                        $lineno   = $4;
2879                        $data     = $5;
2880                } else {
2881                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
2882                        next;
2883                }
2884                $short_rev  = substr ($long_rev, 0, 8);
2885                $age        = time () - $time;
2886                $age_str    = age_string ($age);
2887                $age_str    =~ s/ /&nbsp;/g;
2888                $age_class  = age_class($age);
2889                $author     = esc_html ($author);
2890                $author     =~ s/ /&nbsp;/g;
2891
2892                $data = untabify($data);
2893                $data = esc_html ($data);
2894
2895                print <<HTML;
2896  <tr class="$line_class[$line_class_num]">
2897    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
2898    <td class="$age_class">$age_str</td>
2899    <td>$author</td>
2900    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
2901    <td class="pre">$data</td>
2902  </tr>
2903HTML
2904        } # while (my $line = <$fd>)
2905        print "</table>\n\n";
2906        close $fd
2907                or print "Reading blob failed.\n";
2908        print "</div>";
2909        git_footer_html();
2910}
2911
2912sub git_tags {
2913        my $head = git_get_head_hash($project);
2914        git_header_html();
2915        git_print_page_nav('','', $head,undef,$head);
2916        git_print_header_div('summary', $project);
2917
2918        my @tagslist = git_get_tags_list();
2919        if (@tagslist) {
2920                git_tags_body(\@tagslist);
2921        }
2922        git_footer_html();
2923}
2924
2925sub git_heads {
2926        my $head = git_get_head_hash($project);
2927        git_header_html();
2928        git_print_page_nav('','', $head,undef,$head);
2929        git_print_header_div('summary', $project);
2930
2931        my @headslist = git_get_heads_list();
2932        if (@headslist) {
2933                git_heads_body(\@headslist, $head);
2934        }
2935        git_footer_html();
2936}
2937
2938sub git_blob_plain {
2939        my $expires;
2940
2941        if (!defined $hash) {
2942                if (defined $file_name) {
2943                        my $base = $hash_base || git_get_head_hash($project);
2944                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2945                                or die_error(undef, "Error lookup file");
2946                } else {
2947                        die_error(undef, "No file name defined");
2948                }
2949        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2950                # blobs defined by non-textual hash id's can be cached
2951                $expires = "+1d";
2952        }
2953
2954        my $type = shift;
2955        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2956                or die_error(undef, "Couldn't cat $file_name, $hash");
2957
2958        $type ||= blob_mimetype($fd, $file_name);
2959
2960        # save as filename, even when no $file_name is given
2961        my $save_as = "$hash";
2962        if (defined $file_name) {
2963                $save_as = $file_name;
2964        } elsif ($type =~ m/^text\//) {
2965                $save_as .= '.txt';
2966        }
2967
2968        print $cgi->header(
2969                -type => "$type",
2970                -expires=>$expires,
2971                -content_disposition => 'inline; filename="' . "$save_as" . '"');
2972        undef $/;
2973        binmode STDOUT, ':raw';
2974        print <$fd>;
2975        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
2976        $/ = "\n";
2977        close $fd;
2978}
2979
2980sub git_blob {
2981        my $expires;
2982
2983        if (!defined $hash) {
2984                if (defined $file_name) {
2985                        my $base = $hash_base || git_get_head_hash($project);
2986                        $hash = git_get_hash_by_path($base, $file_name, "blob")
2987                                or die_error(undef, "Error lookup file");
2988                } else {
2989                        die_error(undef, "No file name defined");
2990                }
2991        } elsif ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2992                # blobs defined by non-textual hash id's can be cached
2993                $expires = "+1d";
2994        }
2995
2996        my ($have_blame) = gitweb_check_feature('blame');
2997        open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
2998                or die_error(undef, "Couldn't cat $file_name, $hash");
2999        my $mimetype = blob_mimetype($fd, $file_name);
3000        if ($mimetype !~ m/^text\//) {
3001                close $fd;
3002                return git_blob_plain($mimetype);
3003        }
3004        git_header_html(undef, $expires);
3005        my $formats_nav = '';
3006        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3007                if (defined $file_name) {
3008                        if ($have_blame) {
3009                                $formats_nav .=
3010                                        $cgi->a({-href => href(action=>"blame", hash_base=>$hash_base,
3011                                                               hash=>$hash, file_name=>$file_name)},
3012                                                "blame") .
3013                                        " | ";
3014                        }
3015                        $formats_nav .=
3016                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3017                                                       hash=>$hash, file_name=>$file_name)},
3018                                        "history") .
3019                                " | " .
3020                                $cgi->a({-href => href(action=>"blob_plain",
3021                                                       hash=>$hash, file_name=>$file_name)},
3022                                        "raw") .
3023                                " | " .
3024                                $cgi->a({-href => href(action=>"blob",
3025                                                       hash_base=>"HEAD", file_name=>$file_name)},
3026                                        "HEAD");
3027                } else {
3028                        $formats_nav .=
3029                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "raw");
3030                }
3031                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3032                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3033        } else {
3034                print "<div class=\"page_nav\">\n" .
3035                      "<br/><br/></div>\n" .
3036                      "<div class=\"title\">$hash</div>\n";
3037        }
3038        git_print_page_path($file_name, "blob", $hash_base);
3039        print "<div class=\"page_body\">\n";
3040        my $nr;
3041        while (my $line = <$fd>) {
3042                chomp $line;
3043                $nr++;
3044                $line = untabify($line);
3045                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n",
3046                       $nr, $nr, $nr, esc_html($line, -nbsp=>1);
3047        }
3048        close $fd
3049                or print "Reading blob failed.\n";
3050        print "</div>";
3051        git_footer_html();
3052}
3053
3054sub git_tree {
3055        my $have_snapshot = gitweb_have_snapshot();
3056
3057        if (!defined $hash_base) {
3058                $hash_base = "HEAD";
3059        }
3060        if (!defined $hash) {
3061                if (defined $file_name) {
3062                        $hash = git_get_hash_by_path($hash_base, $file_name, "tree");
3063                } else {
3064                        $hash = $hash_base;
3065                }
3066        }
3067        $/ = "\0";
3068        open my $fd, "-|", git_cmd(), "ls-tree", '-z', $hash
3069                or die_error(undef, "Open git-ls-tree failed");
3070        my @entries = map { chomp; $_ } <$fd>;
3071        close $fd or die_error(undef, "Reading tree failed");
3072        $/ = "\n";
3073
3074        my $refs = git_get_references();
3075        my $ref = format_ref_marker($refs, $hash_base);
3076        git_header_html();
3077        my $basedir = '';
3078        my ($have_blame) = gitweb_check_feature('blame');
3079        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3080                my @views_nav = ();
3081                if (defined $file_name) {
3082                        push @views_nav,
3083                                $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,
3084                                                       hash=>$hash, file_name=>$file_name)},
3085                                        "history"),
3086                                $cgi->a({-href => href(action=>"tree",
3087                                                       hash_base=>"HEAD", file_name=>$file_name)},
3088                                        "HEAD"),
3089                }
3090                if ($have_snapshot) {
3091                        # FIXME: Should be available when we have no hash base as well.
3092                        push @views_nav,
3093                                $cgi->a({-href => href(action=>"snapshot", hash=>$hash)},
3094                                        "snapshot");
3095                }
3096                git_print_page_nav('tree','', $hash_base, undef, undef, join(' | ', @views_nav));
3097                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
3098        } else {
3099                undef $hash_base;
3100                print "<div class=\"page_nav\">\n";
3101                print "<br/><br/></div>\n";
3102                print "<div class=\"title\">$hash</div>\n";
3103        }
3104        if (defined $file_name) {
3105                $basedir = $file_name;
3106                if ($basedir ne '' && substr($basedir, -1) ne '/') {
3107                        $basedir .= '/';
3108                }
3109        }
3110        git_print_page_path($file_name, 'tree', $hash_base);
3111        print "<div class=\"page_body\">\n";
3112        print "<table cellspacing=\"0\">\n";
3113        my $alternate = 1;
3114        # '..' (top directory) link if possible
3115        if (defined $hash_base &&
3116            defined $file_name && $file_name =~ m![^/]+$!) {
3117                if ($alternate) {
3118                        print "<tr class=\"dark\">\n";
3119                } else {
3120                        print "<tr class=\"light\">\n";
3121                }
3122                $alternate ^= 1;
3123
3124                my $up = $file_name;
3125                $up =~ s!/?[^/]+$!!;
3126                undef $up unless $up;
3127                # based on git_print_tree_entry
3128                print '<td class="mode">' . mode_str('040000') . "</td>\n";
3129                print '<td class="list">';
3130                print $cgi->a({-href => href(action=>"tree", hash_base=>$hash_base,
3131                                             file_name=>$up)},
3132                              "..");
3133                print "</td>\n";
3134                print "<td class=\"link\"></td>\n";
3135
3136                print "</tr>\n";
3137        }
3138        foreach my $line (@entries) {
3139                my %t = parse_ls_tree_line($line, -z => 1);
3140
3141                if ($alternate) {
3142                        print "<tr class=\"dark\">\n";
3143                } else {
3144                        print "<tr class=\"light\">\n";
3145                }
3146                $alternate ^= 1;
3147
3148                git_print_tree_entry(\%t, $basedir, $hash_base, $have_blame);
3149
3150                print "</tr>\n";
3151        }
3152        print "</table>\n" .
3153              "</div>";
3154        git_footer_html();
3155}
3156
3157sub git_snapshot {
3158        my ($ctype, $suffix, $command) = gitweb_check_feature('snapshot');
3159        my $have_snapshot = (defined $ctype && defined $suffix);
3160        if (!$have_snapshot) {
3161                die_error('403 Permission denied', "Permission denied");
3162        }
3163
3164        if (!defined $hash) {
3165                $hash = git_get_head_hash($project);
3166        }
3167
3168        my $filename = basename($project) . "-$hash.tar.$suffix";
3169
3170        print $cgi->header(
3171                -type => 'application/x-tar',
3172                -content_encoding => $ctype,
3173                -content_disposition => 'inline; filename="' . "$filename" . '"',
3174                -status => '200 OK');
3175
3176        my $git = git_cmd_str();
3177        my $name = $project;
3178        $name =~ s/\047/\047\\\047\047/g;
3179        open my $fd, "-|",
3180        "$git archive --format=tar --prefix=\'$name\'/ $hash | $command"
3181                or die_error(undef, "Execute git-tar-tree failed.");
3182        binmode STDOUT, ':raw';
3183        print <$fd>;
3184        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
3185        close $fd;
3186
3187}
3188
3189sub git_log {
3190        my $head = git_get_head_hash($project);
3191        if (!defined $hash) {
3192                $hash = $head;
3193        }
3194        if (!defined $page) {
3195                $page = 0;
3196        }
3197        my $refs = git_get_references();
3198
3199        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3200        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
3201                or die_error(undef, "Open git-rev-list failed");
3202        my @revlist = map { chomp; $_ } <$fd>;
3203        close $fd;
3204
3205        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
3206
3207        git_header_html();
3208        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
3209
3210        if (!@revlist) {
3211                my %co = parse_commit($hash);
3212
3213                git_print_header_div('summary', $project);
3214                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
3215        }
3216        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
3217                my $commit = $revlist[$i];
3218                my $ref = format_ref_marker($refs, $commit);
3219                my %co = parse_commit($commit);
3220                next if !%co;
3221                my %ad = parse_date($co{'author_epoch'});
3222                git_print_header_div('commit',
3223                               "<span class=\"age\">$co{'age_string'}</span>" .
3224                               esc_html($co{'title'}) . $ref,
3225                               $commit);
3226                print "<div class=\"title_text\">\n" .
3227                      "<div class=\"log_link\">\n" .
3228                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
3229                      " | " .
3230                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
3231                      " | " .
3232                      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
3233                      "<br/>\n" .
3234                      "</div>\n" .
3235                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
3236                      "</div>\n";
3237
3238                print "<div class=\"log_body\">\n";
3239                git_print_log($co{'comment'}, -final_empty_line=> 1);
3240                print "</div>\n";
3241        }
3242        git_footer_html();
3243}
3244
3245sub git_commit {
3246        my %co = parse_commit($hash);
3247        if (!%co) {
3248                die_error(undef, "Unknown commit object");
3249        }
3250        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3251        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
3252
3253        my $parent = $co{'parent'};
3254        if (!defined $parent) {
3255                $parent = "--root";
3256        }
3257        open my $fd, "-|", git_cmd(), "diff-tree", '-r', "--no-commit-id",
3258                @diff_opts, $parent, $hash, "--"
3259                or die_error(undef, "Open git-diff-tree failed");
3260        my @difftree = map { chomp; $_ } <$fd>;
3261        close $fd or die_error(undef, "Reading git-diff-tree failed");
3262
3263        # non-textual hash id's can be cached
3264        my $expires;
3265        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3266                $expires = "+1d";
3267        }
3268        my $refs = git_get_references();
3269        my $ref = format_ref_marker($refs, $co{'id'});
3270
3271        my $have_snapshot = gitweb_have_snapshot();
3272
3273        my @views_nav = ();
3274        if (defined $file_name && defined $co{'parent'}) {
3275                push @views_nav,
3276                        $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)},
3277                                "blame");
3278        }
3279        git_header_html(undef, $expires);
3280        git_print_page_nav('commit', '',
3281                           $hash, $co{'tree'}, $hash,
3282                           join (' | ', @views_nav));
3283
3284        if (defined $co{'parent'}) {
3285                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
3286        } else {
3287                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
3288        }
3289        print "<div class=\"title_text\">\n" .
3290              "<table cellspacing=\"0\">\n";
3291        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
3292              "<tr>" .
3293              "<td></td><td> $ad{'rfc2822'}";
3294        if ($ad{'hour_local'} < 6) {
3295                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
3296                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3297        } else {
3298                printf(" (%02d:%02d %s)",
3299                       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
3300        }
3301        print "</td>" .
3302              "</tr>\n";
3303        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
3304        print "<tr><td></td><td> $cd{'rfc2822'}" .
3305              sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
3306              "</td></tr>\n";
3307        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
3308        print "<tr>" .
3309              "<td>tree</td>" .
3310              "<td class=\"sha1\">" .
3311              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash),
3312                       class => "list"}, $co{'tree'}) .
3313              "</td>" .
3314              "<td class=\"link\">" .
3315              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)},
3316                      "tree");
3317        if ($have_snapshot) {
3318                print " | " .
3319                      $cgi->a({-href => href(action=>"snapshot", hash=>$hash)}, "snapshot");
3320        }
3321        print "</td>" .
3322              "</tr>\n";
3323        my $parents = $co{'parents'};
3324        foreach my $par (@$parents) {
3325                print "<tr>" .
3326                      "<td>parent</td>" .
3327                      "<td class=\"sha1\">" .
3328                      $cgi->a({-href => href(action=>"commit", hash=>$par),
3329                               class => "list"}, $par) .
3330                      "</td>" .
3331                      "<td class=\"link\">" .
3332                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
3333                      " | " .
3334                      $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "diff") .
3335                      "</td>" .
3336                      "</tr>\n";
3337        }
3338        print "</table>".
3339              "</div>\n";
3340
3341        print "<div class=\"page_body\">\n";
3342        git_print_log($co{'comment'});
3343        print "</div>\n";
3344
3345        git_difftree_body(\@difftree, $hash, $parent);
3346
3347        git_footer_html();
3348}
3349
3350sub git_blobdiff {
3351        my $format = shift || 'html';
3352
3353        my $fd;
3354        my @difftree;
3355        my %diffinfo;
3356        my $expires;
3357
3358        # preparing $fd and %diffinfo for git_patchset_body
3359        # new style URI
3360        if (defined $hash_base && defined $hash_parent_base) {
3361                if (defined $file_name) {
3362                        # read raw output
3363                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3364                                $hash_parent_base, $hash_base,
3365                                "--", $file_name
3366                                or die_error(undef, "Open git-diff-tree failed");
3367                        @difftree = map { chomp; $_ } <$fd>;
3368                        close $fd
3369                                or die_error(undef, "Reading git-diff-tree failed");
3370                        @difftree
3371                                or die_error('404 Not Found', "Blob diff not found");
3372
3373                } elsif (defined $hash &&
3374                         $hash =~ /[0-9a-fA-F]{40}/) {
3375                        # try to find filename from $hash
3376
3377                        # read filtered raw output
3378                        open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3379                                $hash_parent_base, $hash_base, "--"
3380                                or die_error(undef, "Open git-diff-tree failed");
3381                        @difftree =
3382                                # ':100644 100644 03b21826... 3b93d5e7... M     ls-files.c'
3383                                # $hash == to_id
3384                                grep { /^:[0-7]{6} [0-7]{6} [0-9a-fA-F]{40} $hash/ }
3385                                map { chomp; $_ } <$fd>;
3386                        close $fd
3387                                or die_error(undef, "Reading git-diff-tree failed");
3388                        @difftree
3389                                or die_error('404 Not Found', "Blob diff not found");
3390
3391                } else {
3392                        die_error('404 Not Found', "Missing one of the blob diff parameters");
3393                }
3394
3395                if (@difftree > 1) {
3396                        die_error('404 Not Found', "Ambiguous blob diff specification");
3397                }
3398
3399                %diffinfo = parse_difftree_raw_line($difftree[0]);
3400                $file_parent ||= $diffinfo{'from_file'} || $file_name || $diffinfo{'file'};
3401                $file_name   ||= $diffinfo{'to_file'}   || $diffinfo{'file'};
3402
3403                $hash_parent ||= $diffinfo{'from_id'};
3404                $hash        ||= $diffinfo{'to_id'};
3405
3406                # non-textual hash id's can be cached
3407                if ($hash_base =~ m/^[0-9a-fA-F]{40}$/ &&
3408                    $hash_parent_base =~ m/^[0-9a-fA-F]{40}$/) {
3409                        $expires = '+1d';
3410                }
3411
3412                # open patch output
3413                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3414                        '-p', $hash_parent_base, $hash_base,
3415                        "--", $file_name
3416                        or die_error(undef, "Open git-diff-tree failed");
3417        }
3418
3419        # old/legacy style URI
3420        if (!%diffinfo && # if new style URI failed
3421            defined $hash && defined $hash_parent) {
3422                # fake git-diff-tree raw output
3423                $diffinfo{'from_mode'} = $diffinfo{'to_mode'} = "blob";
3424                $diffinfo{'from_id'} = $hash_parent;
3425                $diffinfo{'to_id'}   = $hash;
3426                if (defined $file_name) {
3427                        if (defined $file_parent) {
3428                                $diffinfo{'status'} = '2';
3429                                $diffinfo{'from_file'} = $file_parent;
3430                                $diffinfo{'to_file'}   = $file_name;
3431                        } else { # assume not renamed
3432                                $diffinfo{'status'} = '1';
3433                                $diffinfo{'from_file'} = $file_name;
3434                                $diffinfo{'to_file'}   = $file_name;
3435                        }
3436                } else { # no filename given
3437                        $diffinfo{'status'} = '2';
3438                        $diffinfo{'from_file'} = $hash_parent;
3439                        $diffinfo{'to_file'}   = $hash;
3440                }
3441
3442                # non-textual hash id's can be cached
3443                if ($hash =~ m/^[0-9a-fA-F]{40}$/ &&
3444                    $hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3445                        $expires = '+1d';
3446                }
3447
3448                # open patch output
3449                open $fd, "-|", git_cmd(), "diff", '-p', @diff_opts,
3450                        $hash_parent, $hash, "--"
3451                        or die_error(undef, "Open git-diff failed");
3452        } else  {
3453                die_error('404 Not Found', "Missing one of the blob diff parameters")
3454                        unless %diffinfo;
3455        }
3456
3457        # header
3458        if ($format eq 'html') {
3459                my $formats_nav =
3460                        $cgi->a({-href => href(action=>"blobdiff_plain",
3461                                               hash=>$hash, hash_parent=>$hash_parent,
3462                                               hash_base=>$hash_base, hash_parent_base=>$hash_parent_base,
3463                                               file_name=>$file_name, file_parent=>$file_parent)},
3464                                "raw");
3465                git_header_html(undef, $expires);
3466                if (defined $hash_base && (my %co = parse_commit($hash_base))) {
3467                        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
3468                        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3469                } else {
3470                        print "<div class=\"page_nav\"><br/>$formats_nav<br/></div>\n";
3471                        print "<div class=\"title\">$hash vs $hash_parent</div>\n";
3472                }
3473                if (defined $file_name) {
3474                        git_print_page_path($file_name, "blob", $hash_base);
3475                } else {
3476                        print "<div class=\"page_path\"></div>\n";
3477                }
3478
3479        } elsif ($format eq 'plain') {
3480                print $cgi->header(
3481                        -type => 'text/plain',
3482                        -charset => 'utf-8',
3483                        -expires => $expires,
3484                        -content_disposition => 'inline; filename="' . "$file_name" . '.patch"');
3485
3486                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3487
3488        } else {
3489                die_error(undef, "Unknown blobdiff format");
3490        }
3491
3492        # patch
3493        if ($format eq 'html') {
3494                print "<div class=\"page_body\">\n";
3495
3496                git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
3497                close $fd;
3498
3499                print "</div>\n"; # class="page_body"
3500                git_footer_html();
3501
3502        } else {
3503                while (my $line = <$fd>) {
3504                        $line =~ s!a/($hash|$hash_parent)!'a/'.esc_html($diffinfo{'from_file'})!eg;
3505                        $line =~ s!b/($hash|$hash_parent)!'b/'.esc_html($diffinfo{'to_file'})!eg;
3506
3507                        print $line;
3508
3509                        last if $line =~ m!^\+\+\+!;
3510                }
3511                local $/ = undef;
3512                print <$fd>;
3513                close $fd;
3514        }
3515}
3516
3517sub git_blobdiff_plain {
3518        git_blobdiff('plain');
3519}
3520
3521sub git_commitdiff {
3522        my $format = shift || 'html';
3523        my %co = parse_commit($hash);
3524        if (!%co) {
3525                die_error(undef, "Unknown commit object");
3526        }
3527
3528        # we need to prepare $formats_nav before any parameter munging
3529        my $formats_nav;
3530        if ($format eq 'html') {
3531                $formats_nav =
3532                        $cgi->a({-href => href(action=>"commitdiff_plain",
3533                                               hash=>$hash, hash_parent=>$hash_parent)},
3534                                "raw");
3535
3536                if (defined $hash_parent) {
3537                        # commitdiff with two commits given
3538                        my $hash_parent_short = $hash_parent;
3539                        if ($hash_parent =~ m/^[0-9a-fA-F]{40}$/) {
3540                                $hash_parent_short = substr($hash_parent, 0, 7);
3541                        }
3542                        $formats_nav .=
3543                                ' (from: ' .
3544                                $cgi->a({-href => href(action=>"commitdiff",
3545                                                       hash=>$hash_parent)},
3546                                        esc_html($hash_parent_short)) .
3547                                ')';
3548                } elsif (!$co{'parent'}) {
3549                        # --root commitdiff
3550                        $formats_nav .= ' (initial)';
3551                } elsif (scalar @{$co{'parents'}} == 1) {
3552                        # single parent commit
3553                        $formats_nav .=
3554                                ' (parent: ' .
3555                                $cgi->a({-href => href(action=>"commitdiff",
3556                                                       hash=>$co{'parent'})},
3557                                        esc_html(substr($co{'parent'}, 0, 7))) .
3558                                ')';
3559                } else {
3560                        # merge commit
3561                        $formats_nav .=
3562                                ' (merge: ' .
3563                                join(' ', map {
3564                                        $cgi->a({-href => href(action=>"commitdiff",
3565                                                               hash=>$_)},
3566                                                esc_html(substr($_, 0, 7)));
3567                                } @{$co{'parents'}} ) .
3568                                ')';
3569                }
3570        }
3571
3572        if (!defined $hash_parent) {
3573                $hash_parent = $co{'parent'} || '--root';
3574        }
3575
3576        # read commitdiff
3577        my $fd;
3578        my @difftree;
3579        if ($format eq 'html') {
3580                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3581                        "--no-commit-id", "--patch-with-raw", "--full-index",
3582                        $hash_parent, $hash, "--"
3583                        or die_error(undef, "Open git-diff-tree failed");
3584
3585                while (chomp(my $line = <$fd>)) {
3586                        # empty line ends raw part of diff-tree output
3587                        last unless $line;
3588                        push @difftree, $line;
3589                }
3590
3591        } elsif ($format eq 'plain') {
3592                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3593                        '-p', $hash_parent, $hash, "--"
3594                        or die_error(undef, "Open git-diff-tree failed");
3595
3596        } else {
3597                die_error(undef, "Unknown commitdiff format");
3598        }
3599
3600        # non-textual hash id's can be cached
3601        my $expires;
3602        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
3603                $expires = "+1d";
3604        }
3605
3606        # write commit message
3607        if ($format eq 'html') {
3608                my $refs = git_get_references();
3609                my $ref = format_ref_marker($refs, $co{'id'});
3610
3611                git_header_html(undef, $expires);
3612                git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
3613                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
3614                git_print_authorship(\%co);
3615                print "<div class=\"page_body\">\n";
3616                if (@{$co{'comment'}} > 1) {
3617                        print "<div class=\"log\">\n";
3618                        git_print_log($co{'comment'}, -final_empty_line=> 1, -remove_title => 1);
3619                        print "</div>\n"; # class="log"
3620                }
3621
3622        } elsif ($format eq 'plain') {
3623                my $refs = git_get_references("tags");
3624                my $tagname = git_get_rev_name_tags($hash);
3625                my $filename = basename($project) . "-$hash.patch";
3626
3627                print $cgi->header(
3628                        -type => 'text/plain',
3629                        -charset => 'utf-8',
3630                        -expires => $expires,
3631                        -content_disposition => 'inline; filename="' . "$filename" . '"');
3632                my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
3633                print <<TEXT;
3634From: $co{'author'}
3635Date: $ad{'rfc2822'} ($ad{'tz_local'})
3636Subject: $co{'title'}
3637TEXT
3638                print "X-Git-Tag: $tagname\n" if $tagname;
3639                print "X-Git-Url: " . $cgi->self_url() . "\n\n";
3640
3641                foreach my $line (@{$co{'comment'}}) {
3642                        print "$line\n";
3643                }
3644                print "---\n\n";
3645        }
3646
3647        # write patch
3648        if ($format eq 'html') {
3649                git_difftree_body(\@difftree, $hash, $hash_parent);
3650                print "<br/>\n";
3651
3652                git_patchset_body($fd, \@difftree, $hash, $hash_parent);
3653                close $fd;
3654                print "</div>\n"; # class="page_body"
3655                git_footer_html();
3656
3657        } elsif ($format eq 'plain') {
3658                local $/ = undef;
3659                print <$fd>;
3660                close $fd
3661                        or print "Reading git-diff-tree failed\n";
3662        }
3663}
3664
3665sub git_commitdiff_plain {
3666        git_commitdiff('plain');
3667}
3668
3669sub git_history {
3670        if (!defined $hash_base) {
3671                $hash_base = git_get_head_hash($project);
3672        }
3673        if (!defined $page) {
3674                $page = 0;
3675        }
3676        my $ftype;
3677        my %co = parse_commit($hash_base);
3678        if (!%co) {
3679                die_error(undef, "Unknown commit object");
3680        }
3681
3682        my $refs = git_get_references();
3683        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3684
3685        if (!defined $hash && defined $file_name) {
3686                $hash = git_get_hash_by_path($hash_base, $file_name);
3687        }
3688        if (defined $hash) {
3689                $ftype = git_get_type($hash);
3690        }
3691
3692        open my $fd, "-|",
3693                git_cmd(), "rev-list", $limit, "--full-history", $hash_base, "--", $file_name
3694                        or die_error(undef, "Open git-rev-list-failed");
3695        my @revlist = map { chomp; $_ } <$fd>;
3696        close $fd
3697                or die_error(undef, "Reading git-rev-list failed");
3698
3699        my $paging_nav = '';
3700        if ($page > 0) {
3701                $paging_nav .=
3702                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3703                                               file_name=>$file_name)},
3704                                "first");
3705                $paging_nav .= " &sdot; " .
3706                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3707                                               file_name=>$file_name, page=>$page-1),
3708                                 -accesskey => "p", -title => "Alt-p"}, "prev");
3709        } else {
3710                $paging_nav .= "first";
3711                $paging_nav .= " &sdot; prev";
3712        }
3713        if ($#revlist >= (100 * ($page+1)-1)) {
3714                $paging_nav .= " &sdot; " .
3715                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3716                                               file_name=>$file_name, page=>$page+1),
3717                                 -accesskey => "n", -title => "Alt-n"}, "next");
3718        } else {
3719                $paging_nav .= " &sdot; next";
3720        }
3721        my $next_link = '';
3722        if ($#revlist >= (100 * ($page+1)-1)) {
3723                $next_link =
3724                        $cgi->a({-href => href(action=>"history", hash=>$hash, hash_base=>$hash_base,
3725                                               file_name=>$file_name, page=>$page+1),
3726                                 -title => "Alt-n"}, "next");
3727        }
3728
3729        git_header_html();
3730        git_print_page_nav('history','', $hash_base,$co{'tree'},$hash_base, $paging_nav);
3731        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
3732        git_print_page_path($file_name, $ftype, $hash_base);
3733
3734        git_history_body(\@revlist, ($page * 100), $#revlist,
3735                         $refs, $hash_base, $ftype, $next_link);
3736
3737        git_footer_html();
3738}
3739
3740sub git_search {
3741        if (!defined $searchtext) {
3742                die_error(undef, "Text field empty");
3743        }
3744        if (!defined $hash) {
3745                $hash = git_get_head_hash($project);
3746        }
3747        my %co = parse_commit($hash);
3748        if (!%co) {
3749                die_error(undef, "Unknown commit object");
3750        }
3751
3752        $searchtype ||= 'commit';
3753        if ($searchtype eq 'pickaxe') {
3754                # pickaxe may take all resources of your box and run for several minutes
3755                # with every query - so decide by yourself how public you make this feature
3756                my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3757                if (!$have_pickaxe) {
3758                        die_error('403 Permission denied', "Permission denied");
3759                }
3760        }
3761
3762        git_header_html();
3763        git_print_page_nav('','', $hash,$co{'tree'},$hash);
3764        git_print_header_div('commit', esc_html($co{'title'}), $hash);
3765
3766        print "<table cellspacing=\"0\">\n";
3767        my $alternate = 1;
3768        if ($searchtype eq 'commit' or $searchtype eq 'author' or $searchtype eq 'committer') {
3769                $/ = "\0";
3770                open my $fd, "-|", git_cmd(), "rev-list",
3771                        "--header", "--parents", $hash, "--"
3772                        or next;
3773                while (my $commit_text = <$fd>) {
3774                        if (!grep m/$searchtext/i, $commit_text) {
3775                                next;
3776                        }
3777                        if ($searchtype eq 'author' && !grep m/\nauthor .*$searchtext/i, $commit_text) {
3778                                next;
3779                        }
3780                        if ($searchtype eq 'committer' && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
3781                                next;
3782                        }
3783                        my @commit_lines = split "\n", $commit_text;
3784                        my %co = parse_commit(undef, \@commit_lines);
3785                        if (!%co) {
3786                                next;
3787                        }
3788                        if ($alternate) {
3789                                print "<tr class=\"dark\">\n";
3790                        } else {
3791                                print "<tr class=\"light\">\n";
3792                        }
3793                        $alternate ^= 1;
3794                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3795                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3796                              "<td>" .
3797                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list subject"},
3798                                       esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3799                        my $comment = $co{'comment'};
3800                        foreach my $line (@$comment) {
3801                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
3802                                        my $lead = esc_html($1) || "";
3803                                        $lead = chop_str($lead, 30, 10);
3804                                        my $match = esc_html($2) || "";
3805                                        my $trail = esc_html($3) || "";
3806                                        $trail = chop_str($trail, 30, 10);
3807                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
3808                                        print chop_str($text, 80, 5) . "<br/>\n";
3809                                }
3810                        }
3811                        print "</td>\n" .
3812                              "<td class=\"link\">" .
3813                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3814                              " | " .
3815                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3816                        print "</td>\n" .
3817                              "</tr>\n";
3818                }
3819                close $fd;
3820        }
3821
3822        if ($searchtype eq 'pickaxe') {
3823                $/ = "\n";
3824                my $git_command = git_cmd_str();
3825                open my $fd, "-|", "$git_command rev-list $hash | " .
3826                        "$git_command diff-tree -r --stdin -S\'$searchtext\'";
3827                undef %co;
3828                my @files;
3829                while (my $line = <$fd>) {
3830                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
3831                                my %set;
3832                                $set{'file'} = $6;
3833                                $set{'from_id'} = $3;
3834                                $set{'to_id'} = $4;
3835                                $set{'id'} = $set{'to_id'};
3836                                if ($set{'id'} =~ m/0{40}/) {
3837                                        $set{'id'} = $set{'from_id'};
3838                                }
3839                                if ($set{'id'} =~ m/0{40}/) {
3840                                        next;
3841                                }
3842                                push @files, \%set;
3843                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
3844                                if (%co) {
3845                                        if ($alternate) {
3846                                                print "<tr class=\"dark\">\n";
3847                                        } else {
3848                                                print "<tr class=\"light\">\n";
3849                                        }
3850                                        $alternate ^= 1;
3851                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
3852                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
3853                                              "<td>" .
3854                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
3855                                                      -class => "list subject"},
3856                                                      esc_html(chop_str($co{'title'}, 50)) . "<br/>");
3857                                        while (my $setref = shift @files) {
3858                                                my %set = %$setref;
3859                                                print $cgi->a({-href => href(action=>"blob", hash_base=>$co{'id'},
3860                                                                             hash=>$set{'id'}, file_name=>$set{'file'}),
3861                                                              -class => "list"},
3862                                                              "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
3863                                                      "<br/>\n";
3864                                        }
3865                                        print "</td>\n" .
3866                                              "<td class=\"link\">" .
3867                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
3868                                              " | " .
3869                                              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
3870                                        print "</td>\n" .
3871                                              "</tr>\n";
3872                                }
3873                                %co = parse_commit($1);
3874                        }
3875                }
3876                close $fd;
3877        }
3878        print "</table>\n";
3879        git_footer_html();
3880}
3881
3882sub git_search_help {
3883        git_header_html();
3884        git_print_page_nav('','', $hash,$hash,$hash);
3885        print <<EOT;
3886<dl>
3887<dt><b>commit</b></dt>
3888<dd>The commit messages and authorship information will be scanned for the given string.</dd>
3889<dt><b>author</b></dt>
3890<dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd>
3891<dt><b>committer</b></dt>
3892<dd>Name and e-mail of the committer and date of commit will be scanned for the given string.</dd>
3893EOT
3894        my ($have_pickaxe) = gitweb_check_feature('pickaxe');
3895        if ($have_pickaxe) {
3896                print <<EOT;
3897<dt><b>pickaxe</b></dt>
3898<dd>All commits that caused the string to appear or disappear from any file (changes that
3899added, removed or "modified" the string) will be listed. This search can take a while and
3900takes a lot of strain on the server, so please use it wisely.</dd>
3901EOT
3902        }
3903        print "</dl>\n";
3904        git_footer_html();
3905}
3906
3907sub git_shortlog {
3908        my $head = git_get_head_hash($project);
3909        if (!defined $hash) {
3910                $hash = $head;
3911        }
3912        if (!defined $page) {
3913                $page = 0;
3914        }
3915        my $refs = git_get_references();
3916
3917        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
3918        open my $fd, "-|", git_cmd(), "rev-list", $limit, $hash, "--"
3919                or die_error(undef, "Open git-rev-list failed");
3920        my @revlist = map { chomp; $_ } <$fd>;
3921        close $fd;
3922
3923        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
3924        my $next_link = '';
3925        if ($#revlist >= (100 * ($page+1)-1)) {
3926                $next_link =
3927                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
3928                                 -title => "Alt-n"}, "next");
3929        }
3930
3931
3932        git_header_html();
3933        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
3934        git_print_header_div('summary', $project);
3935
3936        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
3937
3938        git_footer_html();
3939}
3940
3941## ......................................................................
3942## feeds (RSS, OPML)
3943
3944sub git_rss {
3945        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
3946        open my $fd, "-|", git_cmd(), "rev-list", "--max-count=150",
3947                git_get_head_hash($project), "--"
3948                or die_error(undef, "Open git-rev-list failed");
3949        my @revlist = map { chomp; $_ } <$fd>;
3950        close $fd or die_error(undef, "Reading git-rev-list failed");
3951        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
3952        print <<XML;
3953<?xml version="1.0" encoding="utf-8"?>
3954<rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
3955<channel>
3956<title>$project $my_uri $my_url</title>
3957<link>${\esc_html("$my_url?p=$project;a=summary")}</link>
3958<description>$project log</description>
3959<language>en</language>
3960XML
3961
3962        for (my $i = 0; $i <= $#revlist; $i++) {
3963                my $commit = $revlist[$i];
3964                my %co = parse_commit($commit);
3965                # we read 150, we always show 30 and the ones more recent than 48 hours
3966                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
3967                        last;
3968                }
3969                my %cd = parse_date($co{'committer_epoch'});
3970                open $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts,
3971                        $co{'parent'}, $co{'id'}, "--"
3972                        or next;
3973                my @difftree = map { chomp; $_ } <$fd>;
3974                close $fd
3975                        or next;
3976                print "<item>\n" .
3977                      "<title>" .
3978                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
3979                      "</title>\n" .
3980                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
3981                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
3982                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
3983                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
3984                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
3985                      "<content:encoded>" .
3986                      "<![CDATA[\n";
3987                my $comment = $co{'comment'};
3988                foreach my $line (@$comment) {
3989                        $line = to_utf8($line);
3990                        print "$line<br/>\n";
3991                }
3992                print "<br/>\n";
3993                foreach my $line (@difftree) {
3994                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
3995                                next;
3996                        }
3997                        my $file = esc_html(unquote($7));
3998                        $file = to_utf8($file);
3999                        print "$file<br/>\n";
4000                }
4001                print "]]>\n" .
4002                      "</content:encoded>\n" .
4003                      "</item>\n";
4004        }
4005        print "</channel></rss>";
4006}
4007
4008sub git_opml {
4009        my @list = git_get_projects_list();
4010
4011        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
4012        print <<XML;
4013<?xml version="1.0" encoding="utf-8"?>
4014<opml version="1.0">
4015<head>
4016  <title>$site_name OPML Export</title>
4017</head>
4018<body>
4019<outline text="git RSS feeds">
4020XML
4021
4022        foreach my $pr (@list) {
4023                my %proj = %$pr;
4024                my $head = git_get_head_hash($proj{'path'});
4025                if (!defined $head) {
4026                        next;
4027                }
4028                $git_dir = "$projectroot/$proj{'path'}";
4029                my %co = parse_commit($head);
4030                if (!%co) {
4031                        next;
4032                }
4033
4034                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
4035                my $rss  = "$my_url?p=$proj{'path'};a=rss";
4036                my $html = "$my_url?p=$proj{'path'};a=summary";
4037                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
4038        }
4039        print <<XML;
4040</outline>
4041</body>
4042</opml>
4043XML
4044}