Andrew's git / gitweb.git / gitweb/gitweb.perl
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gitweb / gitweb.perlon commit gitweb: fix project list if PATH_INFO=="/". (13d0216)
   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();
  18binmode STDOUT, ':utf8';
  19
  20our $cgi = new CGI;
  21our $version = "++GIT_VERSION++";
  22our $my_url = $cgi->url();
  23our $my_uri = $cgi->url(-absolute => 1);
  24
  25# core git executable to use
  26# this can just be "git" if your webserver has a sensible PATH
  27our $GIT = "++GIT_BINDIR++/git";
  28
  29# absolute fs-path which will be prepended to the project path
  30#our $projectroot = "/pub/scm";
  31our $projectroot = "++GITWEB_PROJECTROOT++";
  32
  33# location for temporary files needed for diffs
  34our $git_temp = "/tmp/gitweb";
  35
  36# target of the home link on top of all pages
  37our $home_link = $my_uri || "/";
  38
  39# string of the home link on top of all pages
  40our $home_link_str = "++GITWEB_HOME_LINK_STR++";
  41
  42# name of your site or organization to appear in page titles
  43# replace this with something more descriptive for clearer bookmarks
  44our $site_name = "++GITWEB_SITENAME++" || $ENV{'SERVER_NAME'} || "Untitled";
  45
  46# html text to include at home page
  47our $home_text = "++GITWEB_HOMETEXT++";
  48
  49# URI of default stylesheet
  50our $stylesheet = "++GITWEB_CSS++";
  51# URI of GIT logo
  52our $logo = "++GITWEB_LOGO++";
  53
  54# source of projects list
  55our $projects_list = "++GITWEB_LIST++";
  56
  57# list of git base URLs used for URL to where fetch project from,
  58# i.e. full URL is "$git_base_url/$project"
  59our @git_base_url_list = ("++GITWEB_BASE_URL++");
  60
  61# default blob_plain mimetype and default charset for text/plain blob
  62our $default_blob_plain_mimetype = 'text/plain';
  63our $default_text_plain_charset  = undef;
  64
  65# file to use for guessing MIME types before trying /etc/mime.types
  66# (relative to the current git repository)
  67our $mimetypes_file = undef;
  68
  69our $GITWEB_CONFIG = $ENV{'GITWEB_CONFIG'} || "++GITWEB_CONFIG++";
  70require $GITWEB_CONFIG if -e $GITWEB_CONFIG;
  71
  72# version of the core git binary
  73our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
  74
  75$projects_list ||= $projectroot;
  76if (! -d $git_temp) {
  77        mkdir($git_temp, 0700) || die_error(undef, "Couldn't mkdir $git_temp");
  78}
  79
  80# ======================================================================
  81# input validation and dispatch
  82our $action = $cgi->param('a');
  83if (defined $action) {
  84        if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
  85                die_error(undef, "Invalid action parameter");
  86        }
  87        # action which does not check rest of parameters
  88        if ($action eq "opml") {
  89                git_opml();
  90                exit;
  91        }
  92}
  93
  94our $project = ($cgi->param('p') || $ENV{'PATH_INFO'});
  95if (defined $project) {
  96        $project =~ s|^/||;
  97        $project =~ s|/$||;
  98        $project = undef unless $project;
  99}
 100if (defined $project) {
 101        if (!validate_input($project)) {
 102                die_error(undef, "Invalid project parameter");
 103        }
 104        if (!(-d "$projectroot/$project")) {
 105                die_error(undef, "No such directory");
 106        }
 107        if (!(-e "$projectroot/$project/HEAD")) {
 108                die_error(undef, "No such project");
 109        }
 110        $ENV{'GIT_DIR'} = "$projectroot/$project";
 111} else {
 112        git_project_list();
 113        exit;
 114}
 115
 116our $file_name = $cgi->param('f');
 117if (defined $file_name) {
 118        if (!validate_input($file_name)) {
 119                die_error(undef, "Invalid file parameter");
 120        }
 121}
 122
 123our $file_parent = $cgi->param('fp');
 124if (defined $file_parent) {
 125        if (!validate_input($file_parent)) {
 126                die_error(undef, "Invalid file parent parameter");
 127        }
 128}
 129
 130our $hash = $cgi->param('h');
 131if (defined $hash) {
 132        if (!validate_input($hash)) {
 133                die_error(undef, "Invalid hash parameter");
 134        }
 135}
 136
 137our $hash_parent = $cgi->param('hp');
 138if (defined $hash_parent) {
 139        if (!validate_input($hash_parent)) {
 140                die_error(undef, "Invalid hash parent parameter");
 141        }
 142}
 143
 144our $hash_base = $cgi->param('hb');
 145if (defined $hash_base) {
 146        if (!validate_input($hash_base)) {
 147                die_error(undef, "Invalid hash base parameter");
 148        }
 149}
 150
 151our $page = $cgi->param('pg');
 152if (defined $page) {
 153        if ($page =~ m/[^0-9]$/) {
 154                die_error(undef, "Invalid page parameter");
 155        }
 156}
 157
 158our $searchtext = $cgi->param('s');
 159if (defined $searchtext) {
 160        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 161                die_error(undef, "Invalid search parameter");
 162        }
 163        $searchtext = quotemeta $searchtext;
 164}
 165
 166# dispatch
 167my %actions = (
 168        "blame" => \&git_blame2,
 169        "blobdiff" => \&git_blobdiff,
 170        "blobdiff_plain" => \&git_blobdiff_plain,
 171        "blob" => \&git_blob,
 172        "blob_plain" => \&git_blob_plain,
 173        "commitdiff" => \&git_commitdiff,
 174        "commitdiff_plain" => \&git_commitdiff_plain,
 175        "commit" => \&git_commit,
 176        "heads" => \&git_heads,
 177        "history" => \&git_history,
 178        "log" => \&git_log,
 179        "rss" => \&git_rss,
 180        "search" => \&git_search,
 181        "shortlog" => \&git_shortlog,
 182        "summary" => \&git_summary,
 183        "tag" => \&git_tag,
 184        "tags" => \&git_tags,
 185        "tree" => \&git_tree,
 186);
 187
 188$action = 'summary' if (!defined($action));
 189if (!defined($actions{$action})) {
 190        die_error(undef, "Unknown action");
 191}
 192$actions{$action}->();
 193exit;
 194
 195## ======================================================================
 196## action links
 197
 198sub href(%) {
 199        my %mapping = (
 200                action => "a",
 201                project => "p",
 202                file_name => "f",
 203                file_parent => "fp",
 204                hash => "h",
 205                hash_parent => "hp",
 206                hash_base => "hb",
 207                page => "pg",
 208                searchtext => "s",
 209        );
 210
 211        my %params = @_;
 212        $params{"project"} ||= $project;
 213
 214        my $href = "$my_uri?";
 215        $href .= esc_param( join(";",
 216                map {
 217                        "$mapping{$_}=$params{$_}" if defined $params{$_}
 218                } keys %params
 219        ) );
 220
 221        return $href;
 222}
 223
 224
 225## ======================================================================
 226## validation, quoting/unquoting and escaping
 227
 228sub validate_input {
 229        my $input = shift;
 230
 231        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 232                return $input;
 233        }
 234        if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 235                return undef;
 236        }
 237        if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 238                return undef;
 239        }
 240        return $input;
 241}
 242
 243# quote unsafe chars, but keep the slash, even when it's not
 244# correct, but quoted slashes look too horrible in bookmarks
 245sub esc_param {
 246        my $str = shift;
 247        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 248        $str =~ s/\+/%2B/g;
 249        $str =~ s/ /\+/g;
 250        return $str;
 251}
 252
 253# replace invalid utf8 character with SUBSTITUTION sequence
 254sub esc_html {
 255        my $str = shift;
 256        $str = decode("utf8", $str, Encode::FB_DEFAULT);
 257        $str = escapeHTML($str);
 258        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 259        return $str;
 260}
 261
 262# git may return quoted and escaped filenames
 263sub unquote {
 264        my $str = shift;
 265        if ($str =~ m/^"(.*)"$/) {
 266                $str = $1;
 267                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 268        }
 269        return $str;
 270}
 271
 272# escape tabs (convert tabs to spaces)
 273sub untabify {
 274        my $line = shift;
 275
 276        while ((my $pos = index($line, "\t")) != -1) {
 277                if (my $count = (8 - ($pos % 8))) {
 278                        my $spaces = ' ' x $count;
 279                        $line =~ s/\t/$spaces/;
 280                }
 281        }
 282
 283        return $line;
 284}
 285
 286## ----------------------------------------------------------------------
 287## HTML aware string manipulation
 288
 289sub chop_str {
 290        my $str = shift;
 291        my $len = shift;
 292        my $add_len = shift || 10;
 293
 294        # allow only $len chars, but don't cut a word if it would fit in $add_len
 295        # if it doesn't fit, cut it if it's still longer than the dots we would add
 296        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 297        my $body = $1;
 298        my $tail = $2;
 299        if (length($tail) > 4) {
 300                $tail = " ...";
 301                $body =~ s/&[^;]*$//; # remove chopped character entities
 302        }
 303        return "$body$tail";
 304}
 305
 306## ----------------------------------------------------------------------
 307## functions returning short strings
 308
 309# CSS class for given age value (in seconds)
 310sub age_class {
 311        my $age = shift;
 312
 313        if ($age < 60*60*2) {
 314                return "age0";
 315        } elsif ($age < 60*60*24*2) {
 316                return "age1";
 317        } else {
 318                return "age2";
 319        }
 320}
 321
 322# convert age in seconds to "nn units ago" string
 323sub age_string {
 324        my $age = shift;
 325        my $age_str;
 326
 327        if ($age > 60*60*24*365*2) {
 328                $age_str = (int $age/60/60/24/365);
 329                $age_str .= " years ago";
 330        } elsif ($age > 60*60*24*(365/12)*2) {
 331                $age_str = int $age/60/60/24/(365/12);
 332                $age_str .= " months ago";
 333        } elsif ($age > 60*60*24*7*2) {
 334                $age_str = int $age/60/60/24/7;
 335                $age_str .= " weeks ago";
 336        } elsif ($age > 60*60*24*2) {
 337                $age_str = int $age/60/60/24;
 338                $age_str .= " days ago";
 339        } elsif ($age > 60*60*2) {
 340                $age_str = int $age/60/60;
 341                $age_str .= " hours ago";
 342        } elsif ($age > 60*2) {
 343                $age_str = int $age/60;
 344                $age_str .= " min ago";
 345        } elsif ($age > 2) {
 346                $age_str = int $age;
 347                $age_str .= " sec ago";
 348        } else {
 349                $age_str .= " right now";
 350        }
 351        return $age_str;
 352}
 353
 354# convert file mode in octal to symbolic file mode string
 355sub mode_str {
 356        my $mode = oct shift;
 357
 358        if (S_ISDIR($mode & S_IFMT)) {
 359                return 'drwxr-xr-x';
 360        } elsif (S_ISLNK($mode)) {
 361                return 'lrwxrwxrwx';
 362        } elsif (S_ISREG($mode)) {
 363                # git cares only about the executable bit
 364                if ($mode & S_IXUSR) {
 365                        return '-rwxr-xr-x';
 366                } else {
 367                        return '-rw-r--r--';
 368                };
 369        } else {
 370                return '----------';
 371        }
 372}
 373
 374# convert file mode in octal to file type string
 375sub file_type {
 376        my $mode = oct shift;
 377
 378        if (S_ISDIR($mode & S_IFMT)) {
 379                return "directory";
 380        } elsif (S_ISLNK($mode)) {
 381                return "symlink";
 382        } elsif (S_ISREG($mode)) {
 383                return "file";
 384        } else {
 385                return "unknown";
 386        }
 387}
 388
 389## ----------------------------------------------------------------------
 390## functions returning short HTML fragments, or transforming HTML fragments
 391## which don't beling to other sections
 392
 393# format line of commit message or tag comment
 394sub format_log_line_html {
 395        my $line = shift;
 396
 397        $line = esc_html($line);
 398        $line =~ s/ /&nbsp;/g;
 399        if ($line =~ m/([0-9a-fA-F]{40})/) {
 400                my $hash_text = $1;
 401                if (git_get_type($hash_text) eq "commit") {
 402                        my $link = $cgi->a({-class => "text", -href => href(action=>"commit", hash=>$hash_text)}, $hash_text);
 403                        $line =~ s/$hash_text/$link/;
 404                }
 405        }
 406        return $line;
 407}
 408
 409# format marker of refs pointing to given object
 410sub format_ref_marker {
 411        my ($refs, $id) = @_;
 412        my $markers = '';
 413
 414        if (defined $refs->{$id}) {
 415                foreach my $ref (@{$refs->{$id}}) {
 416                        my ($type, $name) = qw();
 417                        # e.g. tags/v2.6.11 or heads/next
 418                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 419                                $type = $1;
 420                                $name = $2;
 421                        } else {
 422                                $type = "ref";
 423                                $name = $ref;
 424                        }
 425
 426                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 427                }
 428        }
 429
 430        if ($markers) {
 431                return ' <span class="refs">'. $markers . '</span>';
 432        } else {
 433                return "";
 434        }
 435}
 436
 437# format, perhaps shortened and with markers, title line
 438sub format_subject_html {
 439        my ($long, $short, $href, $extra) = @_;
 440        $extra = '' unless defined($extra);
 441
 442        if (length($short) < length($long)) {
 443                return $cgi->a({-href => $href, -class => "list",
 444                                -title => $long},
 445                       esc_html($short) . $extra);
 446        } else {
 447                return $cgi->a({-href => $href, -class => "list"},
 448                       esc_html($long)  . $extra);
 449        }
 450}
 451
 452## ----------------------------------------------------------------------
 453## git utility subroutines, invoking git commands
 454
 455# get HEAD ref of given project as hash
 456sub git_get_head_hash {
 457        my $project = shift;
 458        my $oENV = $ENV{'GIT_DIR'};
 459        my $retval = undef;
 460        $ENV{'GIT_DIR'} = "$projectroot/$project";
 461        if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 462                my $head = <$fd>;
 463                close $fd;
 464                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 465                        $retval = $1;
 466                }
 467        }
 468        if (defined $oENV) {
 469                $ENV{'GIT_DIR'} = $oENV;
 470        }
 471        return $retval;
 472}
 473
 474# get type of given object
 475sub git_get_type {
 476        my $hash = shift;
 477
 478        open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 479        my $type = <$fd>;
 480        close $fd or return;
 481        chomp $type;
 482        return $type;
 483}
 484
 485sub git_get_project_config {
 486        my $key = shift;
 487
 488        return unless ($key);
 489        $key =~ s/^gitweb\.//;
 490        return if ($key =~ m/\W/);
 491
 492        my $val = qx($GIT repo-config --get gitweb.$key);
 493        return ($val);
 494}
 495
 496sub git_get_project_config_bool {
 497        my $val = git_get_project_config (@_);
 498        if ($val and $val =~ m/true|yes|on/) {
 499                return (1);
 500        }
 501        return; # implicit false
 502}
 503
 504# get hash of given path at given ref
 505sub git_get_hash_by_path {
 506        my $base = shift;
 507        my $path = shift || return undef;
 508
 509        my $tree = $base;
 510
 511        open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
 512                or die_error(undef, "Open git-ls-tree failed");
 513        my $line = <$fd>;
 514        close $fd or return undef;
 515
 516        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 517        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 518        return $3;
 519}
 520
 521## ......................................................................
 522## git utility functions, directly accessing git repository
 523
 524# assumes that PATH is not symref
 525sub git_get_hash_by_ref {
 526        my $path = shift;
 527
 528        open my $fd, "$projectroot/$path" or return undef;
 529        my $head = <$fd>;
 530        close $fd;
 531        chomp $head;
 532        if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 533                return $head;
 534        }
 535}
 536
 537sub git_get_project_description {
 538        my $path = shift;
 539
 540        open my $fd, "$projectroot/$path/description" or return undef;
 541        my $descr = <$fd>;
 542        close $fd;
 543        chomp $descr;
 544        return $descr;
 545}
 546
 547sub git_get_project_url_list {
 548        my $path = shift;
 549
 550        open my $fd, "$projectroot/$path/cloneurl" or return undef;
 551        my @git_project_url_list = map { chomp; $_ } <$fd>;
 552        close $fd;
 553
 554        return wantarray ? @git_project_url_list : \@git_project_url_list;
 555}
 556
 557sub git_get_projects_list {
 558        my @list;
 559
 560        if (-d $projects_list) {
 561                # search in directory
 562                my $dir = $projects_list;
 563                opendir my ($dh), $dir or return undef;
 564                while (my $dir = readdir($dh)) {
 565                        if (-e "$projectroot/$dir/HEAD") {
 566                                my $pr = {
 567                                        path => $dir,
 568                                };
 569                                push @list, $pr
 570                        }
 571                }
 572                closedir($dh);
 573        } elsif (-f $projects_list) {
 574                # read from file(url-encoded):
 575                # 'git%2Fgit.git Linus+Torvalds'
 576                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 577                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 578                open my ($fd), $projects_list or return undef;
 579                while (my $line = <$fd>) {
 580                        chomp $line;
 581                        my ($path, $owner) = split ' ', $line;
 582                        $path = unescape($path);
 583                        $owner = unescape($owner);
 584                        if (!defined $path) {
 585                                next;
 586                        }
 587                        if (-e "$projectroot/$path/HEAD") {
 588                                my $pr = {
 589                                        path => $path,
 590                                        owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 591                                };
 592                                push @list, $pr
 593                        }
 594                }
 595                close $fd;
 596        }
 597        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 598        return @list;
 599}
 600
 601sub git_get_project_owner {
 602        my $project = shift;
 603        my $owner;
 604
 605        return undef unless $project;
 606
 607        # read from file (url-encoded):
 608        # 'git%2Fgit.git Linus+Torvalds'
 609        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 610        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 611        if (-f $projects_list) {
 612                open (my $fd , $projects_list);
 613                while (my $line = <$fd>) {
 614                        chomp $line;
 615                        my ($pr, $ow) = split ' ', $line;
 616                        $pr = unescape($pr);
 617                        $ow = unescape($ow);
 618                        if ($pr eq $project) {
 619                                $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 620                                last;
 621                        }
 622                }
 623                close $fd;
 624        }
 625        if (!defined $owner) {
 626                $owner = get_file_owner("$projectroot/$project");
 627        }
 628
 629        return $owner;
 630}
 631
 632sub git_get_references {
 633        my $type = shift || "";
 634        my %refs;
 635        my $fd;
 636        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 637        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 638        if (-f "$projectroot/$project/info/refs") {
 639                open $fd, "$projectroot/$project/info/refs"
 640                        or return;
 641        } else {
 642                open $fd, "-|", $GIT, "ls-remote", "."
 643                        or return;
 644        }
 645
 646        while (my $line = <$fd>) {
 647                chomp $line;
 648                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 649                        if (defined $refs{$1}) {
 650                                push @{$refs{$1}}, $2;
 651                        } else {
 652                                $refs{$1} = [ $2 ];
 653                        }
 654                }
 655        }
 656        close $fd or return;
 657        return \%refs;
 658}
 659
 660## ----------------------------------------------------------------------
 661## parse to hash functions
 662
 663sub parse_date {
 664        my $epoch = shift;
 665        my $tz = shift || "-0000";
 666
 667        my %date;
 668        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 669        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 670        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 671        $date{'hour'} = $hour;
 672        $date{'minute'} = $min;
 673        $date{'mday'} = $mday;
 674        $date{'day'} = $days[$wday];
 675        $date{'month'} = $months[$mon];
 676        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 677        $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 678
 679        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 680        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 681        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 682        $date{'hour_local'} = $hour;
 683        $date{'minute_local'} = $min;
 684        $date{'tz_local'} = $tz;
 685        return %date;
 686}
 687
 688sub parse_tag {
 689        my $tag_id = shift;
 690        my %tag;
 691        my @comment;
 692
 693        open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 694        $tag{'id'} = $tag_id;
 695        while (my $line = <$fd>) {
 696                chomp $line;
 697                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 698                        $tag{'object'} = $1;
 699                } elsif ($line =~ m/^type (.+)$/) {
 700                        $tag{'type'} = $1;
 701                } elsif ($line =~ m/^tag (.+)$/) {
 702                        $tag{'name'} = $1;
 703                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 704                        $tag{'author'} = $1;
 705                        $tag{'epoch'} = $2;
 706                        $tag{'tz'} = $3;
 707                } elsif ($line =~ m/--BEGIN/) {
 708                        push @comment, $line;
 709                        last;
 710                } elsif ($line eq "") {
 711                        last;
 712                }
 713        }
 714        push @comment, <$fd>;
 715        $tag{'comment'} = \@comment;
 716        close $fd or return;
 717        if (!defined $tag{'name'}) {
 718                return
 719        };
 720        return %tag
 721}
 722
 723sub parse_commit {
 724        my $commit_id = shift;
 725        my $commit_text = shift;
 726
 727        my @commit_lines;
 728        my %co;
 729
 730        if (defined $commit_text) {
 731                @commit_lines = @$commit_text;
 732        } else {
 733                $/ = "\0";
 734                open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
 735                @commit_lines = split '\n', <$fd>;
 736                close $fd or return;
 737                $/ = "\n";
 738                pop @commit_lines;
 739        }
 740        my $header = shift @commit_lines;
 741        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 742                return;
 743        }
 744        ($co{'id'}, my @parents) = split ' ', $header;
 745        $co{'parents'} = \@parents;
 746        $co{'parent'} = $parents[0];
 747        while (my $line = shift @commit_lines) {
 748                last if $line eq "\n";
 749                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 750                        $co{'tree'} = $1;
 751                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 752                        $co{'author'} = $1;
 753                        $co{'author_epoch'} = $2;
 754                        $co{'author_tz'} = $3;
 755                        if ($co{'author'} =~ m/^([^<]+) </) {
 756                                $co{'author_name'} = $1;
 757                        } else {
 758                                $co{'author_name'} = $co{'author'};
 759                        }
 760                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 761                        $co{'committer'} = $1;
 762                        $co{'committer_epoch'} = $2;
 763                        $co{'committer_tz'} = $3;
 764                        $co{'committer_name'} = $co{'committer'};
 765                        $co{'committer_name'} =~ s/ <.*//;
 766                }
 767        }
 768        if (!defined $co{'tree'}) {
 769                return;
 770        };
 771
 772        foreach my $title (@commit_lines) {
 773                $title =~ s/^    //;
 774                if ($title ne "") {
 775                        $co{'title'} = chop_str($title, 80, 5);
 776                        # remove leading stuff of merges to make the interesting part visible
 777                        if (length($title) > 50) {
 778                                $title =~ s/^Automatic //;
 779                                $title =~ s/^merge (of|with) /Merge ... /i;
 780                                if (length($title) > 50) {
 781                                        $title =~ s/(http|rsync):\/\///;
 782                                }
 783                                if (length($title) > 50) {
 784                                        $title =~ s/(master|www|rsync)\.//;
 785                                }
 786                                if (length($title) > 50) {
 787                                        $title =~ s/kernel.org:?//;
 788                                }
 789                                if (length($title) > 50) {
 790                                        $title =~ s/\/pub\/scm//;
 791                                }
 792                        }
 793                        $co{'title_short'} = chop_str($title, 50, 5);
 794                        last;
 795                }
 796        }
 797        # remove added spaces
 798        foreach my $line (@commit_lines) {
 799                $line =~ s/^    //;
 800        }
 801        $co{'comment'} = \@commit_lines;
 802
 803        my $age = time - $co{'committer_epoch'};
 804        $co{'age'} = $age;
 805        $co{'age_string'} = age_string($age);
 806        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 807        if ($age > 60*60*24*7*2) {
 808                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 809                $co{'age_string_age'} = $co{'age_string'};
 810        } else {
 811                $co{'age_string_date'} = $co{'age_string'};
 812                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 813        }
 814        return %co;
 815}
 816
 817# parse ref from ref_file, given by ref_id, with given type
 818sub parse_ref {
 819        my $ref_file = shift;
 820        my $ref_id = shift;
 821        my $type = shift || git_get_type($ref_id);
 822        my %ref_item;
 823
 824        $ref_item{'type'} = $type;
 825        $ref_item{'id'} = $ref_id;
 826        $ref_item{'epoch'} = 0;
 827        $ref_item{'age'} = "unknown";
 828        if ($type eq "tag") {
 829                my %tag = parse_tag($ref_id);
 830                $ref_item{'comment'} = $tag{'comment'};
 831                if ($tag{'type'} eq "commit") {
 832                        my %co = parse_commit($tag{'object'});
 833                        $ref_item{'epoch'} = $co{'committer_epoch'};
 834                        $ref_item{'age'} = $co{'age_string'};
 835                } elsif (defined($tag{'epoch'})) {
 836                        my $age = time - $tag{'epoch'};
 837                        $ref_item{'epoch'} = $tag{'epoch'};
 838                        $ref_item{'age'} = age_string($age);
 839                }
 840                $ref_item{'reftype'} = $tag{'type'};
 841                $ref_item{'name'} = $tag{'name'};
 842                $ref_item{'refid'} = $tag{'object'};
 843        } elsif ($type eq "commit"){
 844                my %co = parse_commit($ref_id);
 845                $ref_item{'reftype'} = "commit";
 846                $ref_item{'name'} = $ref_file;
 847                $ref_item{'title'} = $co{'title'};
 848                $ref_item{'refid'} = $ref_id;
 849                $ref_item{'epoch'} = $co{'committer_epoch'};
 850                $ref_item{'age'} = $co{'age_string'};
 851        } else {
 852                $ref_item{'reftype'} = $type;
 853                $ref_item{'name'} = $ref_file;
 854                $ref_item{'refid'} = $ref_id;
 855        }
 856
 857        return %ref_item;
 858}
 859
 860## ......................................................................
 861## parse to array of hashes functions
 862
 863sub git_get_refs_list {
 864        my $ref_dir = shift;
 865        my @reflist;
 866
 867        my @refs;
 868        my $pfxlen = length("$projectroot/$project/$ref_dir");
 869        File::Find::find(sub {
 870                return if (/^\./);
 871                if (-f $_) {
 872                        push @refs, substr($File::Find::name, $pfxlen + 1);
 873                }
 874        }, "$projectroot/$project/$ref_dir");
 875
 876        foreach my $ref_file (@refs) {
 877                my $ref_id = git_get_hash_by_ref("$project/$ref_dir/$ref_file");
 878                my $type = git_get_type($ref_id) || next;
 879                my %ref_item = parse_ref($ref_file, $ref_id, $type);
 880
 881                push @reflist, \%ref_item;
 882        }
 883        # sort refs by age
 884        @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
 885        return \@reflist;
 886}
 887
 888## ----------------------------------------------------------------------
 889## filesystem-related functions
 890
 891sub get_file_owner {
 892        my $path = shift;
 893
 894        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 895        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 896        if (!defined $gcos) {
 897                return undef;
 898        }
 899        my $owner = $gcos;
 900        $owner =~ s/[,;].*$//;
 901        return decode("utf8", $owner, Encode::FB_DEFAULT);
 902}
 903
 904## ......................................................................
 905## mimetype related functions
 906
 907sub mimetype_guess_file {
 908        my $filename = shift;
 909        my $mimemap = shift;
 910        -r $mimemap or return undef;
 911
 912        my %mimemap;
 913        open(MIME, $mimemap) or return undef;
 914        while (<MIME>) {
 915                next if m/^#/; # skip comments
 916                my ($mime, $exts) = split(/\t+/);
 917                if (defined $exts) {
 918                        my @exts = split(/\s+/, $exts);
 919                        foreach my $ext (@exts) {
 920                                $mimemap{$ext} = $mime;
 921                        }
 922                }
 923        }
 924        close(MIME);
 925
 926        $filename =~ /\.(.*?)$/;
 927        return $mimemap{$1};
 928}
 929
 930sub mimetype_guess {
 931        my $filename = shift;
 932        my $mime;
 933        $filename =~ /\./ or return undef;
 934
 935        if ($mimetypes_file) {
 936                my $file = $mimetypes_file;
 937                if ($file !~ m!^/!) { # if it is relative path
 938                        # it is relative to project
 939                        $file = "$projectroot/$project/$file";
 940                }
 941                $mime = mimetype_guess_file($filename, $file);
 942        }
 943        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
 944        return $mime;
 945}
 946
 947sub blob_mimetype {
 948        my $fd = shift;
 949        my $filename = shift;
 950
 951        if ($filename) {
 952                my $mime = mimetype_guess($filename);
 953                $mime and return $mime;
 954        }
 955
 956        # just in case
 957        return $default_blob_plain_mimetype unless $fd;
 958
 959        if (-T $fd) {
 960                return 'text/plain' .
 961                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
 962        } elsif (! $filename) {
 963                return 'application/octet-stream';
 964        } elsif ($filename =~ m/\.png$/i) {
 965                return 'image/png';
 966        } elsif ($filename =~ m/\.gif$/i) {
 967                return 'image/gif';
 968        } elsif ($filename =~ m/\.jpe?g$/i) {
 969                return 'image/jpeg';
 970        } else {
 971                return 'application/octet-stream';
 972        }
 973}
 974
 975## ======================================================================
 976## functions printing HTML: header, footer, error page
 977
 978sub git_header_html {
 979        my $status = shift || "200 OK";
 980        my $expires = shift;
 981
 982        my $title = "$site_name git";
 983        if (defined $project) {
 984                $title .= " - $project";
 985                if (defined $action) {
 986                        $title .= "/$action";
 987                        if (defined $file_name) {
 988                                $title .= " - $file_name";
 989                                if ($action eq "tree" && $file_name !~ m|/$|) {
 990                                        $title .= "/";
 991                                }
 992                        }
 993                }
 994        }
 995        my $content_type;
 996        # require explicit support from the UA if we are to send the page as
 997        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
 998        # we have to do this because MSIE sometimes globs '*/*', pretending to
 999        # support xhtml+xml but choking when it gets what it asked for.
1000        if (defined $cgi->http('HTTP_ACCEPT') && $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ && $cgi->Accept('application/xhtml+xml') != 0) {
1001                $content_type = 'application/xhtml+xml';
1002        } else {
1003                $content_type = 'text/html';
1004        }
1005        print $cgi->header(-type=>$content_type, -charset => 'utf-8', -status=> $status, -expires => $expires);
1006        print <<EOF;
1007<?xml version="1.0" encoding="utf-8"?>
1008<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
1009<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
1010<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1011<!-- git core binaries version $git_version -->
1012<head>
1013<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1014<meta name="generator" content="gitweb/$version git/$git_version"/>
1015<meta name="robots" content="index, nofollow"/>
1016<title>$title</title>
1017<link rel="stylesheet" type="text/css" href="$stylesheet"/>
1018EOF
1019        if (defined $project) {
1020                printf('<link rel="alternate" title="%s log" '.
1021                       'href="%s" type="application/rss+xml"/>'."\n",
1022                       esc_param($project), href(action=>"rss"));
1023        }
1024
1025        print "</head>\n" .
1026              "<body>\n" .
1027              "<div class=\"page_header\">\n" .
1028              "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1029              "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1030              "</a>\n";
1031        print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1032        if (defined $project) {
1033                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1034                if (defined $action) {
1035                        print " / $action";
1036                }
1037                print "\n";
1038                if (!defined $searchtext) {
1039                        $searchtext = "";
1040                }
1041                my $search_hash;
1042                if (defined $hash_base) {
1043                        $search_hash = $hash_base;
1044                } elsif (defined $hash) {
1045                        $search_hash = $hash;
1046                } else {
1047                        $search_hash = "HEAD";
1048                }
1049                $cgi->param("a", "search");
1050                $cgi->param("h", $search_hash);
1051                print $cgi->startform(-method => "get", -action => $my_uri) .
1052                      "<div class=\"search\">\n" .
1053                      $cgi->hidden(-name => "p") . "\n" .
1054                      $cgi->hidden(-name => "a") . "\n" .
1055                      $cgi->hidden(-name => "h") . "\n" .
1056                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1057                      "</div>" .
1058                      $cgi->end_form() . "\n";
1059        }
1060        print "</div>\n";
1061}
1062
1063sub git_footer_html {
1064        print "<div class=\"page_footer\">\n";
1065        if (defined $project) {
1066                my $descr = git_get_project_description($project);
1067                if (defined $descr) {
1068                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1069                }
1070                print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
1071        } else {
1072                print $cgi->a({-href => href(action=>"opml"), -class => "rss_logo"}, "OPML") . "\n";
1073        }
1074        print "</div>\n" .
1075              "</body>\n" .
1076              "</html>";
1077}
1078
1079sub die_error {
1080        my $status = shift || "403 Forbidden";
1081        my $error = shift || "Malformed query, file missing or permission denied";
1082
1083        git_header_html($status);
1084        print "<div class=\"page_body\">\n" .
1085              "<br/><br/>\n" .
1086              "$status - $error\n" .
1087              "<br/>\n" .
1088              "</div>\n";
1089        git_footer_html();
1090        exit;
1091}
1092
1093## ----------------------------------------------------------------------
1094## functions printing or outputting HTML: navigation
1095
1096sub git_print_page_nav {
1097        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1098        $extra = '' if !defined $extra; # pager or formats
1099
1100        my @navs = qw(summary shortlog log commit commitdiff tree);
1101        if ($suppress) {
1102                @navs = grep { $_ ne $suppress } @navs;
1103        }
1104
1105        my %arg = map { $_ => {action=>$_} } @navs;
1106        if (defined $head) {
1107                for (qw(commit commitdiff)) {
1108                        $arg{$_}{hash} = $head;
1109                }
1110                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1111                        for (qw(shortlog log)) {
1112                                $arg{$_}{hash} = $head;
1113                        }
1114                }
1115        }
1116        $arg{tree}{hash} = $treehead if defined $treehead;
1117        $arg{tree}{hash_base} = $treebase if defined $treebase;
1118
1119        print "<div class=\"page_nav\">\n" .
1120                (join " | ",
1121                 map { $_ eq $current ?
1122                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1123                 } @navs);
1124        print "<br/>\n$extra<br/>\n" .
1125              "</div>\n";
1126}
1127
1128sub format_paging_nav {
1129        my ($action, $hash, $head, $page, $nrevs) = @_;
1130        my $paging_nav;
1131
1132
1133        if ($hash ne $head || $page) {
1134                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1135        } else {
1136                $paging_nav .= "HEAD";
1137        }
1138
1139        if ($page > 0) {
1140                $paging_nav .= " &sdot; " .
1141                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1142                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1143        } else {
1144                $paging_nav .= " &sdot; prev";
1145        }
1146
1147        if ($nrevs >= (100 * ($page+1)-1)) {
1148                $paging_nav .= " &sdot; " .
1149                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1150                                 -accesskey => "n", -title => "Alt-n"}, "next");
1151        } else {
1152                $paging_nav .= " &sdot; next";
1153        }
1154
1155        return $paging_nav;
1156}
1157
1158## ......................................................................
1159## functions printing or outputting HTML: div
1160
1161sub git_print_header_div {
1162        my ($action, $title, $hash, $hash_base) = @_;
1163        my %args = ();
1164
1165        $args{action} = $action;
1166        $args{hash} = $hash if $hash;
1167        $args{hash_base} = $hash_base if $hash_base;
1168
1169        print "<div class=\"header\">\n" .
1170              $cgi->a({-href => href(%args), -class => "title"},
1171              $title ? $title : $action) .
1172              "\n</div>\n";
1173}
1174
1175sub git_print_page_path {
1176        my $name = shift;
1177        my $type = shift;
1178
1179        if (!defined $name) {
1180                print "<div class=\"page_path\"><b>/</b></div>\n";
1181        } elsif (defined $type && $type eq 'blob') {
1182                print "<div class=\"page_path\"><b>" .
1183                        $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)}, esc_html($name)) . "</b><br/></div>\n";
1184        } else {
1185                print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
1186        }
1187}
1188
1189## ......................................................................
1190## functions printing large fragments of HTML
1191
1192sub git_difftree_body {
1193        my ($difftree, $parent) = @_;
1194
1195        print "<div class=\"list_head\">\n";
1196        if ($#{$difftree} > 10) {
1197                print(($#{$difftree} + 1) . " files changed:\n");
1198        }
1199        print "</div>\n";
1200
1201        print "<table class=\"diff_tree\">\n";
1202        my $alternate = 0;
1203        foreach my $line (@{$difftree}) {
1204                # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1205                # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1206                if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1207                        next;
1208                }
1209                my $from_mode = $1;
1210                my $to_mode = $2;
1211                my $from_id = $3;
1212                my $to_id = $4;
1213                my $status = $5;
1214                my $similarity = $6; # score
1215                my $file = validate_input(unquote($7));
1216
1217                if ($alternate) {
1218                        print "<tr class=\"dark\">\n";
1219                } else {
1220                        print "<tr class=\"light\">\n";
1221                }
1222                $alternate ^= 1;
1223
1224                if ($status eq "A") { # created
1225                        my $mode_chng = "";
1226                        if (S_ISREG(oct $to_mode)) {
1227                                $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
1228                        }
1229                        print "<td>" .
1230                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
1231                                      -class => "list"}, esc_html($file)) .
1232                              "</td>\n" .
1233                              "<td><span class=\"file_status new\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
1234                              "<td class=\"link\">" .
1235                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob") .
1236                              "</td>\n";
1237
1238                } elsif ($status eq "D") { # deleted
1239                        print "<td>" .
1240                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file),
1241                                       -class => "list"}, esc_html($file)) . "</td>\n" .
1242                              "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
1243                              "<td class=\"link\">" .
1244                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file)}, "blob") . " | " .
1245                              $cgi->a({-href => href(action=>"history", hash_base=>$parent, file_name=>$file)}, "history") .
1246                              "</td>\n"
1247
1248                } elsif ($status eq "M" || $status eq "T") { # modified, or type changed
1249                        my $mode_chnge = "";
1250                        if ($from_mode != $to_mode) {
1251                                $mode_chnge = " <span class=\"file_status mode_chnge\">[changed";
1252                                if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
1253                                        $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
1254                                }
1255                                if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
1256                                        if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
1257                                                $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
1258                                        } elsif (S_ISREG($to_mode)) {
1259                                                $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
1260                                        }
1261                                }
1262                                $mode_chnge .= "]</span>\n";
1263                        }
1264                        print "<td>";
1265                        if ($to_id ne $from_id) { # modified
1266                                print $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$file),
1267                                              -class => "list"}, esc_html($file));
1268                        } else { # mode changed
1269                                print $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
1270                                              -class => "list"}, esc_html($file));
1271                        }
1272                        print "</td>\n" .
1273                              "<td>$mode_chnge</td>\n" .
1274                              "<td class=\"link\">" .
1275                                $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob");
1276                        if ($to_id ne $from_id) { # modified
1277                                print " | " . $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$file)}, "diff");
1278                        }
1279                        print " | " . $cgi->a({-href => href(action=>"history", hash_base=>$hash, file_name=>$file)}, "history") . "\n";
1280                        print "</td>\n";
1281
1282                } elsif ($status eq "R") { # renamed
1283                        my ($from_file, $to_file) = split "\t", $file;
1284                        my $mode_chng = "";
1285                        if ($from_mode != $to_mode) {
1286                                $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1287                        }
1288                        print "<td>" .
1289                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
1290                                      -class => "list"}, esc_html($to_file)) . "</td>\n" .
1291                              "<td><span class=\"file_status moved\">[moved from " .
1292                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
1293                                      -class => "list"}, esc_html($from_file)) .
1294                              " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1295                              "<td class=\"link\">" .
1296                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
1297                        if ($to_id ne $from_id) {
1298                                print " | " .
1299                                      $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$to_file, file_parent=>$from_file)}, "diff");
1300                        }
1301                        print "</td>\n";
1302
1303                } elsif ($status eq "C") { # copied
1304                        my ($from_file, $to_file) = split "\t", $file;
1305                        my $mode_chng = "";
1306                        if ($from_mode != $to_mode) {
1307                                $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1308                        }
1309                        print "<td>" .
1310                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
1311                                      -class => "list"}, esc_html($to_file)) . "</td>\n" .
1312                              "<td><span class=\"file_status copied\">[copied from " .
1313                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
1314                                      -class => "list"}, esc_html($from_file)) .
1315                              " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1316                              "<td class=\"link\">" .
1317                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
1318                        if ($to_id ne $from_id) {
1319                                print " | " .
1320                                      $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$to_file, file_parent=>$from_file)}, "diff");
1321                        }
1322                        print "</td>\n";
1323                } # we should not encounter Unmerged (U) or Unknown (X) status
1324                print "</tr>\n";
1325        }
1326        print "</table>\n";
1327}
1328
1329sub git_shortlog_body {
1330        # uses global variable $project
1331        my ($revlist, $from, $to, $refs, $extra) = @_;
1332        $from = 0 unless defined $from;
1333        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1334
1335        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1336        my $alternate = 0;
1337        for (my $i = $from; $i <= $to; $i++) {
1338                my $commit = $revlist->[$i];
1339                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1340                my $ref = format_ref_marker($refs, $commit);
1341                my %co = parse_commit($commit);
1342                if ($alternate) {
1343                        print "<tr class=\"dark\">\n";
1344                } else {
1345                        print "<tr class=\"light\">\n";
1346                }
1347                $alternate ^= 1;
1348                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1349                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1350                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1351                      "<td>";
1352                print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
1353                print "</td>\n" .
1354                      "<td class=\"link\">" .
1355                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1356                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
1357                      "</td>\n" .
1358                      "</tr>\n";
1359        }
1360        if (defined $extra) {
1361                print "<tr>\n" .
1362                      "<td colspan=\"4\">$extra</td>\n" .
1363                      "</tr>\n";
1364        }
1365        print "</table>\n";
1366}
1367
1368sub git_history_body {
1369        # Warning: assumes constant type (blob or tree) during history
1370        my ($fd, $refs, $hash_base, $ftype, $extra) = @_;
1371
1372        print "<table class=\"history\" cellspacing=\"0\">\n";
1373        my $alternate = 0;
1374        while (my $line = <$fd>) {
1375                if ($line !~ m/^([0-9a-fA-F]{40})/) {
1376                        next;
1377                }
1378
1379                my $commit = $1;
1380                my %co = parse_commit($commit);
1381                if (!%co) {
1382                        next;
1383                }
1384
1385                my $ref = format_ref_marker($refs, $commit);
1386
1387                if ($alternate) {
1388                        print "<tr class=\"dark\">\n";
1389                } else {
1390                        print "<tr class=\"light\">\n";
1391                }
1392                $alternate ^= 1;
1393                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1394                      # shortlog uses      chop_str($co{'author_name'}, 10)
1395                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
1396                      "<td>";
1397                # originally git_history used chop_str($co{'title'}, 50)
1398                print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
1399                print "</td>\n" .
1400                      "<td class=\"link\">" .
1401                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1402                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
1403                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
1404
1405                if ($ftype eq 'blob') {
1406                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
1407                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
1408                        if (defined $blob_current && defined $blob_parent &&
1409                                        $blob_current ne $blob_parent) {
1410                                print " | " .
1411                                        $cgi->a({-href => href(action=>"blobdiff", hash=>$blob_current, hash_parent=>$blob_parent, hash_base=>$commit, file_name=>$file_name)},
1412                                                "diff to current");
1413                        }
1414                }
1415                print "</td>\n" .
1416                      "</tr>\n";
1417        }
1418        if (defined $extra) {
1419                print "<tr>\n" .
1420                      "<td colspan=\"4\">$extra</td>\n" .
1421                      "</tr>\n";
1422        }
1423        print "</table>\n";
1424}
1425
1426sub git_tags_body {
1427        # uses global variable $project
1428        my ($taglist, $from, $to, $extra) = @_;
1429        $from = 0 unless defined $from;
1430        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1431
1432        print "<table class=\"tags\" cellspacing=\"0\">\n";
1433        my $alternate = 0;
1434        for (my $i = $from; $i <= $to; $i++) {
1435                my $entry = $taglist->[$i];
1436                my %tag = %$entry;
1437                my $comment_lines = $tag{'comment'};
1438                my $comment = shift @$comment_lines;
1439                my $comment_short;
1440                if (defined $comment) {
1441                        $comment_short = chop_str($comment, 30, 5);
1442                }
1443                if ($alternate) {
1444                        print "<tr class=\"dark\">\n";
1445                } else {
1446                        print "<tr class=\"light\">\n";
1447                }
1448                $alternate ^= 1;
1449                print "<td><i>$tag{'age'}</i></td>\n" .
1450                      "<td>" .
1451                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
1452                               -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1453                      "</td>\n" .
1454                      "<td>";
1455                if (defined $comment) {
1456                        print format_subject_html($comment, $comment_short, href(action=>"tag", hash=>$tag{'id'}));
1457                }
1458                print "</td>\n" .
1459                      "<td class=\"selflink\">";
1460                if ($tag{'type'} eq "tag") {
1461                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
1462                } else {
1463                        print "&nbsp;";
1464                }
1465                print "</td>\n" .
1466                      "<td class=\"link\">" . " | " .
1467                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
1468                if ($tag{'reftype'} eq "commit") {
1469                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
1470                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
1471                } elsif ($tag{'reftype'} eq "blob") {
1472                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
1473                }
1474                print "</td>\n" .
1475                      "</tr>";
1476        }
1477        if (defined $extra) {
1478                print "<tr>\n" .
1479                      "<td colspan=\"5\">$extra</td>\n" .
1480                      "</tr>\n";
1481        }
1482        print "</table>\n";
1483}
1484
1485sub git_heads_body {
1486        # uses global variable $project
1487        my ($taglist, $head, $from, $to, $extra) = @_;
1488        $from = 0 unless defined $from;
1489        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1490
1491        print "<table class=\"heads\" cellspacing=\"0\">\n";
1492        my $alternate = 0;
1493        for (my $i = $from; $i <= $to; $i++) {
1494                my $entry = $taglist->[$i];
1495                my %tag = %$entry;
1496                my $curr = $tag{'id'} eq $head;
1497                if ($alternate) {
1498                        print "<tr class=\"dark\">\n";
1499                } else {
1500                        print "<tr class=\"light\">\n";
1501                }
1502                $alternate ^= 1;
1503                print "<td><i>$tag{'age'}</i></td>\n" .
1504                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
1505                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
1506                               -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1507                      "</td>\n" .
1508                      "<td class=\"link\">" .
1509                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
1510                      $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
1511                      "</td>\n" .
1512                      "</tr>";
1513        }
1514        if (defined $extra) {
1515                print "<tr>\n" .
1516                      "<td colspan=\"3\">$extra</td>\n" .
1517                      "</tr>\n";
1518        }
1519        print "</table>\n";
1520}
1521
1522## ----------------------------------------------------------------------
1523## functions printing large fragments, format as one of arguments
1524
1525sub git_diff_print {
1526        my $from = shift;
1527        my $from_name = shift;
1528        my $to = shift;
1529        my $to_name = shift;
1530        my $format = shift || "html";
1531
1532        my $from_tmp = "/dev/null";
1533        my $to_tmp = "/dev/null";
1534        my $pid = $$;
1535
1536        # create tmp from-file
1537        if (defined $from) {
1538                $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
1539                open my $fd2, "> $from_tmp";
1540                open my $fd, "-|", $GIT, "cat-file", "blob", $from;
1541                my @file = <$fd>;
1542                print $fd2 @file;
1543                close $fd2;
1544                close $fd;
1545        }
1546
1547        # create tmp to-file
1548        if (defined $to) {
1549                $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
1550                open my $fd2, "> $to_tmp";
1551                open my $fd, "-|", $GIT, "cat-file", "blob", $to;
1552                my @file = <$fd>;
1553                print $fd2 @file;
1554                close $fd2;
1555                close $fd;
1556        }
1557
1558        open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
1559        if ($format eq "plain") {
1560                undef $/;
1561                print <$fd>;
1562                $/ = "\n";
1563        } else {
1564                while (my $line = <$fd>) {
1565                        chomp $line;
1566                        my $char = substr($line, 0, 1);
1567                        my $diff_class = "";
1568                        if ($char eq '+') {
1569                                $diff_class = " add";
1570                        } elsif ($char eq "-") {
1571                                $diff_class = " rem";
1572                        } elsif ($char eq "@") {
1573                                $diff_class = " chunk_header";
1574                        } elsif ($char eq "\\") {
1575                                # skip errors
1576                                next;
1577                        }
1578                        $line = untabify($line);
1579                        print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
1580                }
1581        }
1582        close $fd;
1583
1584        if (defined $from) {
1585                unlink($from_tmp);
1586        }
1587        if (defined $to) {
1588                unlink($to_tmp);
1589        }
1590}
1591
1592
1593## ======================================================================
1594## ======================================================================
1595## actions
1596
1597sub git_project_list {
1598        my $order = $cgi->param('o');
1599        if (defined $order && $order !~ m/project|descr|owner|age/) {
1600                die_error(undef, "Unknown order parameter");
1601        }
1602
1603        my @list = git_get_projects_list();
1604        my @projects;
1605        if (!@list) {
1606                die_error(undef, "No projects found");
1607        }
1608        foreach my $pr (@list) {
1609                my $head = git_get_head_hash($pr->{'path'});
1610                if (!defined $head) {
1611                        next;
1612                }
1613                $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
1614                my %co = parse_commit($head);
1615                if (!%co) {
1616                        next;
1617                }
1618                $pr->{'commit'} = \%co;
1619                if (!defined $pr->{'descr'}) {
1620                        my $descr = git_get_project_description($pr->{'path'}) || "";
1621                        $pr->{'descr'} = chop_str($descr, 25, 5);
1622                }
1623                if (!defined $pr->{'owner'}) {
1624                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
1625                }
1626                push @projects, $pr;
1627        }
1628
1629        git_header_html();
1630        if (-f $home_text) {
1631                print "<div class=\"index_include\">\n";
1632                open (my $fd, $home_text);
1633                print <$fd>;
1634                close $fd;
1635                print "</div>\n";
1636        }
1637        print "<table class=\"project_list\">\n" .
1638              "<tr>\n";
1639        $order ||= "project";
1640        if ($order eq "project") {
1641                @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
1642                print "<th>Project</th>\n";
1643        } else {
1644                print "<th>" .
1645                      $cgi->a({-href => "$my_uri?" . esc_param("o=project"),
1646                               -class => "header"}, "Project") .
1647                      "</th>\n";
1648        }
1649        if ($order eq "descr") {
1650                @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
1651                print "<th>Description</th>\n";
1652        } else {
1653                print "<th>" .
1654                      $cgi->a({-href => "$my_uri?" . esc_param("o=descr"),
1655                               -class => "header"}, "Description") .
1656                      "</th>\n";
1657        }
1658        if ($order eq "owner") {
1659                @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
1660                print "<th>Owner</th>\n";
1661        } else {
1662                print "<th>" .
1663                      $cgi->a({-href => "$my_uri?" . esc_param("o=owner"),
1664                               -class => "header"}, "Owner") .
1665                      "</th>\n";
1666        }
1667        if ($order eq "age") {
1668                @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
1669                print "<th>Last Change</th>\n";
1670        } else {
1671                print "<th>" .
1672                      $cgi->a({-href => "$my_uri?" . esc_param("o=age"),
1673                               -class => "header"}, "Last Change") .
1674                      "</th>\n";
1675        }
1676        print "<th></th>\n" .
1677              "</tr>\n";
1678        my $alternate = 0;
1679        foreach my $pr (@projects) {
1680                if ($alternate) {
1681                        print "<tr class=\"dark\">\n";
1682                } else {
1683                        print "<tr class=\"light\">\n";
1684                }
1685                $alternate ^= 1;
1686                print "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
1687                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
1688                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
1689                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
1690                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
1691                      $pr->{'commit'}{'age_string'} . "</td>\n" .
1692                      "<td class=\"link\">" .
1693                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary")   . " | " .
1694                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " .
1695                      $cgi->a({-href => href(project=>$pr->{'path'}, action=>"log")}, "log") .
1696                      "</td>\n" .
1697                      "</tr>\n";
1698        }
1699        print "</table>\n";
1700        git_footer_html();
1701}
1702
1703sub git_summary {
1704        my $descr = git_get_project_description($project) || "none";
1705        my $head = git_get_head_hash($project);
1706        my %co = parse_commit($head);
1707        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
1708
1709        my $owner = git_get_project_owner($project);
1710
1711        my $refs = git_get_references();
1712        git_header_html();
1713        git_print_page_nav('summary','', $head);
1714
1715        print "<div class=\"title\">&nbsp;</div>\n";
1716        print "<table cellspacing=\"0\">\n" .
1717              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1718              "<tr><td>owner</td><td>$owner</td></tr>\n" .
1719              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
1720        # use per project git URL list in $projectroot/$project/cloneurl
1721        # or make project git URL from git base URL and project name
1722        my $url_tag = "URL";
1723        my @url_list = git_get_project_url_list($project);
1724        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
1725        foreach my $git_url (@url_list) {
1726                next unless $git_url;
1727                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
1728                $url_tag = "";
1729        }
1730        print "</table>\n";
1731
1732        open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_get_head_hash($project)
1733                or die_error(undef, "Open git-rev-list failed");
1734        my @revlist = map { chomp; $_ } <$fd>;
1735        close $fd;
1736        git_print_header_div('shortlog');
1737        git_shortlog_body(\@revlist, 0, 15, $refs,
1738                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
1739
1740        my $taglist = git_get_refs_list("refs/tags");
1741        if (defined @$taglist) {
1742                git_print_header_div('tags');
1743                git_tags_body($taglist, 0, 15,
1744                              $cgi->a({-href => href(action=>"tags")}, "..."));
1745        }
1746
1747        my $headlist = git_get_refs_list("refs/heads");
1748        if (defined @$headlist) {
1749                git_print_header_div('heads');
1750                git_heads_body($headlist, $head, 0, 15,
1751                               $cgi->a({-href => href(action=>"heads")}, "..."));
1752        }
1753
1754        git_footer_html();
1755}
1756
1757sub git_tag {
1758        my $head = git_get_head_hash($project);
1759        git_header_html();
1760        git_print_page_nav('','', $head,undef,$head);
1761        my %tag = parse_tag($hash);
1762        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
1763        print "<div class=\"title_text\">\n" .
1764              "<table cellspacing=\"0\">\n" .
1765              "<tr>\n" .
1766              "<td>object</td>\n" .
1767              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'object'}) . "</td>\n" .
1768              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'type'}) . "</td>\n" .
1769              "</tr>\n";
1770        if (defined($tag{'author'})) {
1771                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
1772                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1773                print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1774        }
1775        print "</table>\n\n" .
1776              "</div>\n";
1777        print "<div class=\"page_body\">";
1778        my $comment = $tag{'comment'};
1779        foreach my $line (@$comment) {
1780                print esc_html($line) . "<br/>\n";
1781        }
1782        print "</div>\n";
1783        git_footer_html();
1784}
1785
1786sub git_blame2 {
1787        my $fd;
1788        my $ftype;
1789        die_error(undef, "Permission denied") if (!git_get_project_config_bool ('blame'));
1790        die_error('404 Not Found', "File name not defined") if (!$file_name);
1791        $hash_base ||= git_get_head_hash($project);
1792        die_error(undef, "Couldn't find base commit") unless ($hash_base);
1793        my %co = parse_commit($hash_base)
1794                or die_error(undef, "Reading commit failed");
1795        if (!defined $hash) {
1796                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1797                        or die_error(undef, "Error looking up file");
1798        }
1799        $ftype = git_get_type($hash);
1800        if ($ftype !~ "blob") {
1801                die_error("400 Bad Request", "Object is not a blob");
1802        }
1803        open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
1804                or die_error(undef, "Open git-blame failed");
1805        git_header_html();
1806        my $formats_nav =
1807                $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
1808                " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
1809        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1810        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
1811        git_print_page_path($file_name, $ftype);
1812        my @rev_color = (qw(light2 dark2));
1813        my $num_colors = scalar(@rev_color);
1814        my $current_color = 0;
1815        my $last_rev;
1816        print "<div class=\"page_body\">\n";
1817        print "<table class=\"blame\">\n";
1818        print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
1819        while (<$fd>) {
1820                /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
1821                my $full_rev = $1;
1822                my $rev = substr($full_rev, 0, 8);
1823                my $lineno = $2;
1824                my $data = $3;
1825
1826                if (!defined $last_rev) {
1827                        $last_rev = $full_rev;
1828                } elsif ($last_rev ne $full_rev) {
1829                        $last_rev = $full_rev;
1830                        $current_color = ++$current_color % $num_colors;
1831                }
1832                print "<tr class=\"$rev_color[$current_color]\">\n";
1833                print "<td class=\"sha1\">" .
1834                        $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)}, esc_html($rev)) . "</td>\n";
1835                print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
1836                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
1837                print "</tr>\n";
1838        }
1839        print "</table>\n";
1840        print "</div>";
1841        close $fd or print "Reading blob failed\n";
1842        git_footer_html();
1843}
1844
1845sub git_blame {
1846        my $fd;
1847        die_error('403 Permission denied', "Permission denied") if (!git_get_project_config_bool ('blame'));
1848        die_error('404 Not Found', "File name not defined") if (!$file_name);
1849        $hash_base ||= git_get_head_hash($project);
1850        die_error(undef, "Couldn't find base commit") unless ($hash_base);
1851        my %co = parse_commit($hash_base)
1852                or die_error(undef, "Reading commit failed");
1853        if (!defined $hash) {
1854                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1855                        or die_error(undef, "Error lookup file");
1856        }
1857        open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
1858                or die_error(undef, "Open git-annotate failed");
1859        git_header_html();
1860        my $formats_nav =
1861                $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
1862                " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
1863        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1864        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
1865        git_print_page_path($file_name, 'blob');
1866        print "<div class=\"page_body\">\n";
1867        print <<HTML;
1868<table class="blame">
1869  <tr>
1870    <th>Commit</th>
1871    <th>Age</th>
1872    <th>Author</th>
1873    <th>Line</th>
1874    <th>Data</th>
1875  </tr>
1876HTML
1877        my @line_class = (qw(light dark));
1878        my $line_class_len = scalar (@line_class);
1879        my $line_class_num = $#line_class;
1880        while (my $line = <$fd>) {
1881                my $long_rev;
1882                my $short_rev;
1883                my $author;
1884                my $time;
1885                my $lineno;
1886                my $data;
1887                my $age;
1888                my $age_str;
1889                my $age_class;
1890
1891                chomp $line;
1892                $line_class_num = ($line_class_num + 1) % $line_class_len;
1893
1894                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
1895                        $long_rev = $1;
1896                        $author   = $2;
1897                        $time     = $3;
1898                        $lineno   = $4;
1899                        $data     = $5;
1900                } else {
1901                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
1902                        next;
1903                }
1904                $short_rev  = substr ($long_rev, 0, 8);
1905                $age        = time () - $time;
1906                $age_str    = age_string ($age);
1907                $age_str    =~ s/ /&nbsp;/g;
1908                $age_class  = age_class($age);
1909                $author     = esc_html ($author);
1910                $author     =~ s/ /&nbsp;/g;
1911
1912                $data = untabify($data);
1913                $data = esc_html ($data);
1914
1915                print <<HTML;
1916  <tr class="$line_class[$line_class_num]">
1917    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
1918    <td class="$age_class">$age_str</td>
1919    <td>$author</td>
1920    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
1921    <td class="pre">$data</td>
1922  </tr>
1923HTML
1924        } # while (my $line = <$fd>)
1925        print "</table>\n\n";
1926        close $fd or print "Reading blob failed.\n";
1927        print "</div>";
1928        git_footer_html();
1929}
1930
1931sub git_tags {
1932        my $head = git_get_head_hash($project);
1933        git_header_html();
1934        git_print_page_nav('','', $head,undef,$head);
1935        git_print_header_div('summary', $project);
1936
1937        my $taglist = git_get_refs_list("refs/tags");
1938        if (defined @$taglist) {
1939                git_tags_body($taglist);
1940        }
1941        git_footer_html();
1942}
1943
1944sub git_heads {
1945        my $head = git_get_head_hash($project);
1946        git_header_html();
1947        git_print_page_nav('','', $head,undef,$head);
1948        git_print_header_div('summary', $project);
1949
1950        my $taglist = git_get_refs_list("refs/heads");
1951        if (defined @$taglist) {
1952                git_heads_body($taglist, $head);
1953        }
1954        git_footer_html();
1955}
1956
1957sub git_blob_plain {
1958        if (!defined $hash) {
1959                if (defined $file_name) {
1960                        my $base = $hash_base || git_get_head_hash($project);
1961                        $hash = git_get_hash_by_path($base, $file_name, "blob")
1962                                or die_error(undef, "Error lookup file");
1963                } else {
1964                        die_error(undef, "No file name defined");
1965                }
1966        }
1967        my $type = shift;
1968        open my $fd, "-|", $GIT, "cat-file", "blob", $hash
1969                or die_error(undef, "Couldn't cat $file_name, $hash");
1970
1971        $type ||= blob_mimetype($fd, $file_name);
1972
1973        # save as filename, even when no $file_name is given
1974        my $save_as = "$hash";
1975        if (defined $file_name) {
1976                $save_as = $file_name;
1977        } elsif ($type =~ m/^text\//) {
1978                $save_as .= '.txt';
1979        }
1980
1981        print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
1982        undef $/;
1983        binmode STDOUT, ':raw';
1984        print <$fd>;
1985        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
1986        $/ = "\n";
1987        close $fd;
1988}
1989
1990sub git_blob {
1991        if (!defined $hash) {
1992                if (defined $file_name) {
1993                        my $base = $hash_base || git_get_head_hash($project);
1994                        $hash = git_get_hash_by_path($base, $file_name, "blob")
1995                                or die_error(undef, "Error lookup file");
1996                } else {
1997                        die_error(undef, "No file name defined");
1998                }
1999        }
2000        my $have_blame = git_get_project_config_bool ('blame');
2001        open my $fd, "-|", $GIT, "cat-file", "blob", $hash
2002                or die_error(undef, "Couldn't cat $file_name, $hash");
2003        my $mimetype = blob_mimetype($fd, $file_name);
2004        if ($mimetype !~ m/^text\//) {
2005                close $fd;
2006                return git_blob_plain($mimetype);
2007        }
2008        git_header_html();
2009        my $formats_nav = '';
2010        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2011                if (defined $file_name) {
2012                        if ($have_blame) {
2013                                $formats_nav .= $cgi->a({-href => href(action=>"blame", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blame") . " | ";
2014                        }
2015                        $formats_nav .=
2016                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash, file_name=>$file_name)}, "plain") .
2017                                " | " . $cgi->a({-href => href(action=>"blob", hash_base=>"HEAD", file_name=>$file_name)}, "head");
2018                } else {
2019                        $formats_nav .= $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2020                }
2021                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2022                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2023        } else {
2024                print "<div class=\"page_nav\">\n" .
2025                      "<br/><br/></div>\n" .
2026                      "<div class=\"title\">$hash</div>\n";
2027        }
2028        git_print_page_path($file_name, "blob");
2029        print "<div class=\"page_body\">\n";
2030        my $nr;
2031        while (my $line = <$fd>) {
2032                chomp $line;
2033                $nr++;
2034                $line = untabify($line);
2035                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
2036        }
2037        close $fd or print "Reading blob failed.\n";
2038        print "</div>";
2039        git_footer_html();
2040}
2041
2042sub git_tree {
2043        if (!defined $hash) {
2044                $hash = git_get_head_hash($project);
2045                if (defined $file_name) {
2046                        my $base = $hash_base || $hash;
2047                        $hash = git_get_hash_by_path($base, $file_name, "tree");
2048                }
2049                if (!defined $hash_base) {
2050                        $hash_base = $hash;
2051                }
2052        }
2053        $/ = "\0";
2054        open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
2055                or die_error(undef, "Open git-ls-tree failed");
2056        my @entries = map { chomp; $_ } <$fd>;
2057        close $fd or die_error(undef, "Reading tree failed");
2058        $/ = "\n";
2059
2060        my $refs = git_get_references();
2061        my $ref = format_ref_marker($refs, $hash_base);
2062        git_header_html();
2063        my %base_key = ();
2064        my $base = "";
2065        my $have_blame = git_get_project_config_bool ('blame');
2066        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2067                $base_key{hash_base} = $hash_base;
2068                git_print_page_nav('tree','', $hash_base);
2069                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2070        } else {
2071                print "<div class=\"page_nav\">\n";
2072                print "<br/><br/></div>\n";
2073                print "<div class=\"title\">$hash</div>\n";
2074        }
2075        if (defined $file_name) {
2076                $base = esc_html("$file_name/");
2077        }
2078        git_print_page_path($file_name, 'tree');
2079        print "<div class=\"page_body\">\n";
2080        print "<table cellspacing=\"0\">\n";
2081        my $alternate = 0;
2082        foreach my $line (@entries) {
2083                #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
2084                $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
2085                my $t_mode = $1;
2086                my $t_type = $2;
2087                my $t_hash = $3;
2088                my $t_name = validate_input($4);
2089                if ($alternate) {
2090                        print "<tr class=\"dark\">\n";
2091                } else {
2092                        print "<tr class=\"light\">\n";
2093                }
2094                $alternate ^= 1;
2095                print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
2096                if ($t_type eq "blob") {
2097                        print "<td class=\"list\">" .
2098                              $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key), -class => "list"}, esc_html($t_name)) .
2099                              "</td>\n" .
2100                              "<td class=\"link\">" .
2101                              $cgi->a({-href => href(action=>"blob", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "blob");
2102                        if ($have_blame) {
2103                                print " | " . $cgi->a({-href => href(action=>"blame", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "blame");
2104                        }
2105                        print " | " . $cgi->a({-href => href(action=>"history", hash=>$t_hash, hash_base=>$hash_base, file_name=>"$base$t_name")}, "history") .
2106                              " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$t_hash, file_name=>"$base$t_name")}, "raw") .
2107                              "</td>\n";
2108                } elsif ($t_type eq "tree") {
2109                        print "<td class=\"list\">" .
2110                              $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, esc_html($t_name)) .
2111                              "</td>\n" .
2112                              "<td class=\"link\">" .
2113                              $cgi->a({-href => href(action=>"tree", hash=>$t_hash, file_name=>"$base$t_name", %base_key)}, "tree") .
2114                              " | " . $cgi->a({-href => href(action=>"history", hash_base=>$hash_base, file_name=>"$base$t_name")}, "history") .
2115                              "</td>\n";
2116                }
2117                print "</tr>\n";
2118        }
2119        print "</table>\n" .
2120              "</div>";
2121        git_footer_html();
2122}
2123
2124sub git_log {
2125        my $head = git_get_head_hash($project);
2126        if (!defined $hash) {
2127                $hash = $head;
2128        }
2129        if (!defined $page) {
2130                $page = 0;
2131        }
2132        my $refs = git_get_references();
2133
2134        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2135        open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2136                or die_error(undef, "Open git-rev-list failed");
2137        my @revlist = map { chomp; $_ } <$fd>;
2138        close $fd;
2139
2140        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2141
2142        git_header_html();
2143        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2144
2145        if (!@revlist) {
2146                my %co = parse_commit($hash);
2147
2148                git_print_header_div('summary', $project);
2149                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2150        }
2151        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2152                my $commit = $revlist[$i];
2153                my $ref = format_ref_marker($refs, $commit);
2154                my %co = parse_commit($commit);
2155                next if !%co;
2156                my %ad = parse_date($co{'author_epoch'});
2157                git_print_header_div('commit',
2158                               "<span class=\"age\">$co{'age_string'}</span>" .
2159                               esc_html($co{'title'}) . $ref,
2160                               $commit);
2161                print "<div class=\"title_text\">\n" .
2162                      "<div class=\"log_link\">\n" .
2163                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2164                      " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2165                      "<br/>\n" .
2166                      "</div>\n" .
2167                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2168                      "</div>\n" .
2169                      "<div class=\"log_body\">\n";
2170                my $comment = $co{'comment'};
2171                my $empty = 0;
2172                foreach my $line (@$comment) {
2173                        if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2174                                next;
2175                        }
2176                        if ($line eq "") {
2177                                if ($empty) {
2178                                        next;
2179                                }
2180                                $empty = 1;
2181                        } else {
2182                                $empty = 0;
2183                        }
2184                        print format_log_line_html($line) . "<br/>\n";
2185                }
2186                if (!$empty) {
2187                        print "<br/>\n";
2188                }
2189                print "</div>\n";
2190        }
2191        git_footer_html();
2192}
2193
2194sub git_commit {
2195        my %co = parse_commit($hash);
2196        if (!%co) {
2197                die_error(undef, "Unknown commit object");
2198        }
2199        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2200        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2201
2202        my $parent = $co{'parent'};
2203        if (!defined $parent) {
2204                $parent = "--root";
2205        }
2206        open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
2207                or die_error(undef, "Open git-diff-tree failed");
2208        my @difftree = map { chomp; $_ } <$fd>;
2209        close $fd or die_error(undef, "Reading git-diff-tree failed");
2210
2211        # non-textual hash id's can be cached
2212        my $expires;
2213        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2214                $expires = "+1d";
2215        }
2216        my $refs = git_get_references();
2217        my $ref = format_ref_marker($refs, $co{'id'});
2218        my $formats_nav = '';
2219        if (defined $file_name && defined $co{'parent'}) {
2220                my $parent = $co{'parent'};
2221                $formats_nav .= $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)}, "blame");
2222        }
2223        git_header_html(undef, $expires);
2224        git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2225                     $hash, $co{'tree'}, $hash,
2226                     $formats_nav);
2227
2228        if (defined $co{'parent'}) {
2229                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2230        } else {
2231                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2232        }
2233        print "<div class=\"title_text\">\n" .
2234              "<table cellspacing=\"0\">\n";
2235        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2236              "<tr>" .
2237              "<td></td><td> $ad{'rfc2822'}";
2238        if ($ad{'hour_local'} < 6) {
2239                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2240        } else {
2241                printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2242        }
2243        print "</td>" .
2244              "</tr>\n";
2245        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2246        print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
2247        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2248        print "<tr>" .
2249              "<td>tree</td>" .
2250              "<td class=\"sha1\">" .
2251              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash), class => "list"}, $co{'tree'}) .
2252              "</td>" .
2253              "<td class=\"link\">" . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)}, "tree") .
2254              "</td>" .
2255              "</tr>\n";
2256        my $parents = $co{'parents'};
2257        foreach my $par (@$parents) {
2258                print "<tr>" .
2259                      "<td>parent</td>" .
2260                      "<td class=\"sha1\">" . $cgi->a({-href => href(action=>"commit", hash=>$par), class => "list"}, $par) . "</td>" .
2261                      "<td class=\"link\">" .
2262                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2263                      " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .
2264                      "</td>" .
2265                      "</tr>\n";
2266        }
2267        print "</table>".
2268              "</div>\n";
2269        print "<div class=\"page_body\">\n";
2270        my $comment = $co{'comment'};
2271        my $empty = 0;
2272        my $signed = 0;
2273        foreach my $line (@$comment) {
2274                # print only one empty line
2275                if ($line eq "") {
2276                        if ($empty || $signed) {
2277                                next;
2278                        }
2279                        $empty = 1;
2280                } else {
2281                        $empty = 0;
2282                }
2283                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2284                        $signed = 1;
2285                        print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2286                } else {
2287                        $signed = 0;
2288                        print format_log_line_html($line) . "<br/>\n";
2289                }
2290        }
2291        print "</div>\n";
2292
2293        git_difftree_body(\@difftree, $parent);
2294
2295        git_footer_html();
2296}
2297
2298sub git_blobdiff {
2299        mkdir($git_temp, 0700);
2300        git_header_html();
2301        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2302                my $formats_nav =
2303                        $cgi->a({-href => href(action=>"blobdiff_plain", hash=>$hash, hash_parent=>$hash_parent)}, "plain");
2304                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2305                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2306        } else {
2307                print "<div class=\"page_nav\">\n" .
2308                      "<br/><br/></div>\n" .
2309                      "<div class=\"title\">$hash vs $hash_parent</div>\n";
2310        }
2311        git_print_page_path($file_name, "blob");
2312        print "<div class=\"page_body\">\n" .
2313              "<div class=\"diff_info\">blob:" .
2314              $cgi->a({-href => href(action=>"blob", hash=>$hash_parent, hash_base=>$hash_base, file_name=>($file_parent || $file_name))}, $hash_parent) .
2315              " -> blob:" .
2316              $cgi->a({-href => href(action=>"blob", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, $hash) .
2317              "</div>\n";
2318        git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2319        print "</div>";
2320        git_footer_html();
2321}
2322
2323sub git_blobdiff_plain {
2324        mkdir($git_temp, 0700);
2325        print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2326        git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2327}
2328
2329sub git_commitdiff {
2330        mkdir($git_temp, 0700);
2331        my %co = parse_commit($hash);
2332        if (!%co) {
2333                die_error(undef, "Unknown commit object");
2334        }
2335        if (!defined $hash_parent) {
2336                $hash_parent = $co{'parent'} || '--root';
2337        }
2338        open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2339                or die_error(undef, "Open git-diff-tree failed");
2340        my @difftree = map { chomp; $_ } <$fd>;
2341        close $fd or die_error(undef, "Reading git-diff-tree failed");
2342
2343        # non-textual hash id's can be cached
2344        my $expires;
2345        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2346                $expires = "+1d";
2347        }
2348        my $refs = git_get_references();
2349        my $ref = format_ref_marker($refs, $co{'id'});
2350        my $formats_nav =
2351                $cgi->a({-href => href(action=>"commitdiff_plain", hash=>$hash, hash_parent=>$hash_parent)}, "plain");
2352        git_header_html(undef, $expires);
2353        git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
2354        git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
2355        print "<div class=\"page_body\">\n";
2356        my $comment = $co{'comment'};
2357        my $empty = 0;
2358        my $signed = 0;
2359        my @log = @$comment;
2360        # remove first and empty lines after that
2361        shift @log;
2362        while (defined $log[0] && $log[0] eq "") {
2363                shift @log;
2364        }
2365        foreach my $line (@log) {
2366                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2367                        next;
2368                }
2369                if ($line eq "") {
2370                        if ($empty) {
2371                                next;
2372                        }
2373                        $empty = 1;
2374                } else {
2375                        $empty = 0;
2376                }
2377                print format_log_line_html($line) . "<br/>\n";
2378        }
2379        print "<br/>\n";
2380        foreach my $line (@difftree) {
2381                # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2382                # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2383                if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2384                        next;
2385                }
2386                my $from_mode = $1;
2387                my $to_mode = $2;
2388                my $from_id = $3;
2389                my $to_id = $4;
2390                my $status = $5;
2391                my $file = validate_input(unquote($6));
2392                if ($status eq "A") {
2393                        print "<div class=\"diff_info\">" . file_type($to_mode) . ":" .
2394                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, $to_id) . "(new)" .
2395                              "</div>\n";
2396                        git_diff_print(undef, "/dev/null", $to_id, "b/$file");
2397                } elsif ($status eq "D") {
2398                        print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
2399                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$hash_parent, file_name=>$file)}, $from_id) . "(deleted)" .
2400                              "</div>\n";
2401                        git_diff_print($from_id, "a/$file", undef, "/dev/null");
2402                } elsif ($status eq "M") {
2403                        if ($from_id ne $to_id) {
2404                                print "<div class=\"diff_info\">" .
2405                                      file_type($from_mode) . ":" .
2406                                      $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$hash_parent, file_name=>$file)}, $from_id) .
2407                                      " -> " .
2408                                      file_type($to_mode) . ":" .
2409                                      $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, $to_id) .
2410                                print "</div>\n";
2411                                git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
2412                        }
2413                }
2414        }
2415        print "<br/>\n" .
2416              "</div>";
2417        git_footer_html();
2418}
2419
2420sub git_commitdiff_plain {
2421        mkdir($git_temp, 0700);
2422        my %co = parse_commit($hash);
2423        if (!%co) {
2424                die_error(undef, "Unknown commit object");
2425        }
2426        if (!defined $hash_parent) {
2427                $hash_parent = $co{'parent'} || '--root';
2428        }
2429        open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2430                or die_error(undef, "Open git-diff-tree failed");
2431        my @difftree = map { chomp; $_ } <$fd>;
2432        close $fd or die_error(undef, "Reading diff-tree failed");
2433
2434        # try to figure out the next tag after this commit
2435        my $tagname;
2436        my $refs = git_get_references("tags");
2437        open $fd, "-|", $GIT, "rev-list", "HEAD";
2438        my @commits = map { chomp; $_ } <$fd>;
2439        close $fd;
2440        foreach my $commit (@commits) {
2441                if (defined $refs->{$commit}) {
2442                        $tagname = $refs->{$commit}
2443                }
2444                if ($commit eq $hash) {
2445                        last;
2446                }
2447        }
2448
2449        print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2450        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2451        my $comment = $co{'comment'};
2452        print "From: $co{'author'}\n" .
2453              "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2454              "Subject: $co{'title'}\n";
2455        if (defined $tagname) {
2456                print "X-Git-Tag: $tagname\n";
2457        }
2458        print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2459              "\n";
2460
2461        foreach my $line (@$comment) {;
2462                print "$line\n";
2463        }
2464        print "---\n\n";
2465
2466        foreach my $line (@difftree) {
2467                if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2468                        next;
2469                }
2470                my $from_id = $3;
2471                my $to_id = $4;
2472                my $status = $5;
2473                my $file = $6;
2474                if ($status eq "A") {
2475                        git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2476                } elsif ($status eq "D") {
2477                        git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2478                } elsif ($status eq "M") {
2479                        git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2480                }
2481        }
2482}
2483
2484sub git_history {
2485        if (!defined $hash_base) {
2486                $hash_base = git_get_head_hash($project);
2487        }
2488        my $ftype;
2489        my %co = parse_commit($hash_base);
2490        if (!%co) {
2491                die_error(undef, "Unknown commit object");
2492        }
2493        my $refs = git_get_references();
2494        git_header_html();
2495        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base);
2496        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2497        if (!defined $hash && defined $file_name) {
2498                $hash = git_get_hash_by_path($hash_base, $file_name);
2499        }
2500        if (defined $hash) {
2501                $ftype = git_get_type($hash);
2502        }
2503        git_print_page_path($file_name, $ftype);
2504
2505        open my $fd, "-|",
2506                $GIT, "rev-list", "--full-history", $hash_base, "--", $file_name;
2507        git_history_body($fd, $refs, $hash_base, $ftype);
2508
2509        close $fd;
2510        git_footer_html();
2511}
2512
2513sub git_search {
2514        if (!defined $searchtext) {
2515                die_error(undef, "Text field empty");
2516        }
2517        if (!defined $hash) {
2518                $hash = git_get_head_hash($project);
2519        }
2520        my %co = parse_commit($hash);
2521        if (!%co) {
2522                die_error(undef, "Unknown commit object");
2523        }
2524        # pickaxe may take all resources of your box and run for several minutes
2525        # with every query - so decide by yourself how public you make this feature :)
2526        my $commit_search = 1;
2527        my $author_search = 0;
2528        my $committer_search = 0;
2529        my $pickaxe_search = 0;
2530        if ($searchtext =~ s/^author\\://i) {
2531                $author_search = 1;
2532        } elsif ($searchtext =~ s/^committer\\://i) {
2533                $committer_search = 1;
2534        } elsif ($searchtext =~ s/^pickaxe\\://i) {
2535                $commit_search = 0;
2536                $pickaxe_search = 1;
2537        }
2538        git_header_html();
2539        git_print_page_nav('','', $hash,$co{'tree'},$hash);
2540        git_print_header_div('commit', esc_html($co{'title'}), $hash);
2541
2542        print "<table cellspacing=\"0\">\n";
2543        my $alternate = 0;
2544        if ($commit_search) {
2545                $/ = "\0";
2546                open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
2547                while (my $commit_text = <$fd>) {
2548                        if (!grep m/$searchtext/i, $commit_text) {
2549                                next;
2550                        }
2551                        if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2552                                next;
2553                        }
2554                        if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2555                                next;
2556                        }
2557                        my @commit_lines = split "\n", $commit_text;
2558                        my %co = parse_commit(undef, \@commit_lines);
2559                        if (!%co) {
2560                                next;
2561                        }
2562                        if ($alternate) {
2563                                print "<tr class=\"dark\">\n";
2564                        } else {
2565                                print "<tr class=\"light\">\n";
2566                        }
2567                        $alternate ^= 1;
2568                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2569                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2570                              "<td>" .
2571                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}) -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2572                        my $comment = $co{'comment'};
2573                        foreach my $line (@$comment) {
2574                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2575                                        my $lead = esc_html($1) || "";
2576                                        $lead = chop_str($lead, 30, 10);
2577                                        my $match = esc_html($2) || "";
2578                                        my $trail = esc_html($3) || "";
2579                                        $trail = chop_str($trail, 30, 10);
2580                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
2581                                        print chop_str($text, 80, 5) . "<br/>\n";
2582                                }
2583                        }
2584                        print "</td>\n" .
2585                              "<td class=\"link\">" .
2586                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2587                              " | " . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2588                        print "</td>\n" .
2589                              "</tr>\n";
2590                }
2591                close $fd;
2592        }
2593
2594        if ($pickaxe_search) {
2595                $/ = "\n";
2596                open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
2597                undef %co;
2598                my @files;
2599                while (my $line = <$fd>) {
2600                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2601                                my %set;
2602                                $set{'file'} = $6;
2603                                $set{'from_id'} = $3;
2604                                $set{'to_id'} = $4;
2605                                $set{'id'} = $set{'to_id'};
2606                                if ($set{'id'} =~ m/0{40}/) {
2607                                        $set{'id'} = $set{'from_id'};
2608                                }
2609                                if ($set{'id'} =~ m/0{40}/) {
2610                                        next;
2611                                }
2612                                push @files, \%set;
2613                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2614                                if (%co) {
2615                                        if ($alternate) {
2616                                                print "<tr class=\"dark\">\n";
2617                                        } else {
2618                                                print "<tr class=\"light\">\n";
2619                                        }
2620                                        $alternate ^= 1;
2621                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2622                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2623                                              "<td>" .
2624                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}), -class => "list"}, "<b>" .
2625                                              esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2626                                        while (my $setref = shift @files) {
2627                                                my %set = %$setref;
2628                                                print $cgi->a({-href => href(action=>"blob", hash=>$set{'id'}, hash_base=>$co{'id'}, file_name=>$set{'file'}), class => "list"},
2629                                                      "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
2630                                                      "<br/>\n";
2631                                        }
2632                                        print "</td>\n" .
2633                                              "<td class=\"link\">" .
2634                                              $cgi->a({-href => href(action=>"commit", hash=>$co{'id'})}, "commit") .
2635                                              " | " . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$co{'id'})}, "tree");
2636                                        print "</td>\n" .
2637                                              "</tr>\n";
2638                                }
2639                                %co = parse_commit($1);
2640                        }
2641                }
2642                close $fd;
2643        }
2644        print "</table>\n";
2645        git_footer_html();
2646}
2647
2648sub git_shortlog {
2649        my $head = git_get_head_hash($project);
2650        if (!defined $hash) {
2651                $hash = $head;
2652        }
2653        if (!defined $page) {
2654                $page = 0;
2655        }
2656        my $refs = git_get_references();
2657
2658        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2659        open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2660                or die_error(undef, "Open git-rev-list failed");
2661        my @revlist = map { chomp; $_ } <$fd>;
2662        close $fd;
2663
2664        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
2665        my $next_link = '';
2666        if ($#revlist >= (100 * ($page+1)-1)) {
2667                $next_link =
2668                        $cgi->a({-href => href(action=>"shortlog", hash=>$hash, page=>$page+1),
2669                                 -title => "Alt-n"}, "next");
2670        }
2671
2672
2673        git_header_html();
2674        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
2675        git_print_header_div('summary', $project);
2676
2677        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
2678
2679        git_footer_html();
2680}
2681
2682## ......................................................................
2683## feeds (RSS, OPML)
2684
2685sub git_rss {
2686        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
2687        open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_get_head_hash($project)
2688                or die_error(undef, "Open git-rev-list failed");
2689        my @revlist = map { chomp; $_ } <$fd>;
2690        close $fd or die_error(undef, "Reading git-rev-list failed");
2691        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
2692        print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
2693              "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
2694        print "<channel>\n";
2695        print "<title>$project</title>\n".
2696              "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
2697              "<description>$project log</description>\n".
2698              "<language>en</language>\n";
2699
2700        for (my $i = 0; $i <= $#revlist; $i++) {
2701                my $commit = $revlist[$i];
2702                my %co = parse_commit($commit);
2703                # we read 150, we always show 30 and the ones more recent than 48 hours
2704                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
2705                        last;
2706                }
2707                my %cd = parse_date($co{'committer_epoch'});
2708                open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
2709                my @difftree = map { chomp; $_ } <$fd>;
2710                close $fd or next;
2711                print "<item>\n" .
2712                      "<title>" .
2713                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
2714                      "</title>\n" .
2715                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
2716                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
2717                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
2718                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
2719                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
2720                      "<content:encoded>" .
2721                      "<![CDATA[\n";
2722                my $comment = $co{'comment'};
2723                foreach my $line (@$comment) {
2724                        $line = decode("utf8", $line, Encode::FB_DEFAULT);
2725                        print "$line<br/>\n";
2726                }
2727                print "<br/>\n";
2728                foreach my $line (@difftree) {
2729                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
2730                                next;
2731                        }
2732                        my $file = validate_input(unquote($7));
2733                        $file = decode("utf8", $file, Encode::FB_DEFAULT);
2734                        print "$file<br/>\n";
2735                }
2736                print "]]>\n" .
2737                      "</content:encoded>\n" .
2738                      "</item>\n";
2739        }
2740        print "</channel></rss>";
2741}
2742
2743sub git_opml {
2744        my @list = git_get_projects_list();
2745
2746        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
2747        print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
2748              "<opml version=\"1.0\">\n".
2749              "<head>".
2750              "  <title>$site_name Git OPML Export</title>\n".
2751              "</head>\n".
2752              "<body>\n".
2753              "<outline text=\"git RSS feeds\">\n";
2754
2755        foreach my $pr (@list) {
2756                my %proj = %$pr;
2757                my $head = git_get_head_hash($proj{'path'});
2758                if (!defined $head) {
2759                        next;
2760                }
2761                $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
2762                my %co = parse_commit($head);
2763                if (!%co) {
2764                        next;
2765                }
2766
2767                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
2768                my $rss  = "$my_url?p=$proj{'path'};a=rss";
2769                my $html = "$my_url?p=$proj{'path'};a=summary";
2770                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
2771        }
2772        print "</outline>\n".
2773              "</body>\n".
2774              "</opml>\n";
2775}