Andrew's git / gitweb.git / gitweb/gitweb.perl
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gitweb / gitweb.perlon commit Merge branch 'gl/cleanup' into gl/cleanup-next (2ad6ba3)
   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}
  99if (defined $project && $project) {
 100        if (!validate_input($project)) {
 101                die_error(undef, "Invalid project parameter");
 102        }
 103        if (!(-d "$projectroot/$project")) {
 104                die_error(undef, "No such directory");
 105        }
 106        if (!(-e "$projectroot/$project/HEAD")) {
 107                die_error(undef, "No such project");
 108        }
 109        $ENV{'GIT_DIR'} = "$projectroot/$project";
 110} else {
 111        git_project_list();
 112        exit;
 113}
 114
 115our $file_name = $cgi->param('f');
 116if (defined $file_name) {
 117        if (!validate_input($file_name)) {
 118                die_error(undef, "Invalid file parameter");
 119        }
 120}
 121
 122our $hash = $cgi->param('h');
 123if (defined $hash) {
 124        if (!validate_input($hash)) {
 125                die_error(undef, "Invalid hash parameter");
 126        }
 127}
 128
 129our $hash_parent = $cgi->param('hp');
 130if (defined $hash_parent) {
 131        if (!validate_input($hash_parent)) {
 132                die_error(undef, "Invalid hash parent parameter");
 133        }
 134}
 135
 136our $hash_base = $cgi->param('hb');
 137if (defined $hash_base) {
 138        if (!validate_input($hash_base)) {
 139                die_error(undef, "Invalid hash base parameter");
 140        }
 141}
 142
 143our $page = $cgi->param('pg');
 144if (defined $page) {
 145        if ($page =~ m/[^0-9]$/) {
 146                die_error(undef, "Invalid page parameter");
 147        }
 148}
 149
 150our $searchtext = $cgi->param('s');
 151if (defined $searchtext) {
 152        if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 153                die_error(undef, "Invalid search parameter");
 154        }
 155        $searchtext = quotemeta $searchtext;
 156}
 157
 158# dispatch
 159my %actions = (
 160        "blame" => \&git_blame2,
 161        "blobdiff" => \&git_blobdiff,
 162        "blobdiff_plain" => \&git_blobdiff_plain,
 163        "blob" => \&git_blob,
 164        "blob_plain" => \&git_blob_plain,
 165        "commitdiff" => \&git_commitdiff,
 166        "commitdiff_plain" => \&git_commitdiff_plain,
 167        "commit" => \&git_commit,
 168        "heads" => \&git_heads,
 169        "history" => \&git_history,
 170        "log" => \&git_log,
 171        "rss" => \&git_rss,
 172        "search" => \&git_search,
 173        "shortlog" => \&git_shortlog,
 174        "summary" => \&git_summary,
 175        "tag" => \&git_tag,
 176        "tags" => \&git_tags,
 177        "tree" => \&git_tree,
 178);
 179
 180$action = 'summary' if (!defined($action));
 181if (!defined($actions{$action})) {
 182        die_error(undef, "Unknown action");
 183}
 184$actions{$action}->();
 185exit;
 186
 187## ======================================================================
 188## action links
 189
 190sub href(%) {
 191        my %mapping = (
 192                action => "a",
 193                project => "p",
 194                file_name => "f",
 195                hash => "h",
 196                hash_parent => "hp",
 197                hash_base => "hb",
 198                page => "pg",
 199                searchtext => "s",
 200        );
 201
 202        my %params = @_;
 203        $params{"project"} ||= $project;
 204
 205        my $href = "$my_uri?";
 206        $href .= esc_param( join(";",
 207                map { "$mapping{$_}=$params{$_}" } keys %params
 208        ) );
 209
 210        return $href;
 211}
 212
 213
 214## ======================================================================
 215## validation, quoting/unquoting and escaping
 216
 217sub validate_input {
 218        my $input = shift;
 219
 220        if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 221                return $input;
 222        }
 223        if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 224                return undef;
 225        }
 226        if ($input =~ m/[^a-zA-Z0-9_\x80-\xff\ \t\.\/\-\+\#\~\%]/) {
 227                return undef;
 228        }
 229        return $input;
 230}
 231
 232# quote unsafe chars, but keep the slash, even when it's not
 233# correct, but quoted slashes look too horrible in bookmarks
 234sub esc_param {
 235        my $str = shift;
 236        $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg;
 237        $str =~ s/\+/%2B/g;
 238        $str =~ s/ /\+/g;
 239        return $str;
 240}
 241
 242# replace invalid utf8 character with SUBSTITUTION sequence
 243sub esc_html {
 244        my $str = shift;
 245        $str = decode("utf8", $str, Encode::FB_DEFAULT);
 246        $str = escapeHTML($str);
 247        $str =~ s/\014/^L/g; # escape FORM FEED (FF) character (e.g. in COPYING file)
 248        return $str;
 249}
 250
 251# git may return quoted and escaped filenames
 252sub unquote {
 253        my $str = shift;
 254        if ($str =~ m/^"(.*)"$/) {
 255                $str = $1;
 256                $str =~ s/\\([0-7]{1,3})/chr(oct($1))/eg;
 257        }
 258        return $str;
 259}
 260
 261# escape tabs (convert tabs to spaces)
 262sub untabify {
 263        my $line = shift;
 264
 265        while ((my $pos = index($line, "\t")) != -1) {
 266                if (my $count = (8 - ($pos % 8))) {
 267                        my $spaces = ' ' x $count;
 268                        $line =~ s/\t/$spaces/;
 269                }
 270        }
 271
 272        return $line;
 273}
 274
 275## ----------------------------------------------------------------------
 276## HTML aware string manipulation
 277
 278sub chop_str {
 279        my $str = shift;
 280        my $len = shift;
 281        my $add_len = shift || 10;
 282
 283        # allow only $len chars, but don't cut a word if it would fit in $add_len
 284        # if it doesn't fit, cut it if it's still longer than the dots we would add
 285        $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 286        my $body = $1;
 287        my $tail = $2;
 288        if (length($tail) > 4) {
 289                $tail = " ...";
 290                $body =~ s/&[^;]*$//; # remove chopped character entities
 291        }
 292        return "$body$tail";
 293}
 294
 295## ----------------------------------------------------------------------
 296## functions returning short strings
 297
 298# CSS class for given age value (in seconds)
 299sub age_class {
 300        my $age = shift;
 301
 302        if ($age < 60*60*2) {
 303                return "age0";
 304        } elsif ($age < 60*60*24*2) {
 305                return "age1";
 306        } else {
 307                return "age2";
 308        }
 309}
 310
 311# convert age in seconds to "nn units ago" string
 312sub age_string {
 313        my $age = shift;
 314        my $age_str;
 315
 316        if ($age > 60*60*24*365*2) {
 317                $age_str = (int $age/60/60/24/365);
 318                $age_str .= " years ago";
 319        } elsif ($age > 60*60*24*(365/12)*2) {
 320                $age_str = int $age/60/60/24/(365/12);
 321                $age_str .= " months ago";
 322        } elsif ($age > 60*60*24*7*2) {
 323                $age_str = int $age/60/60/24/7;
 324                $age_str .= " weeks ago";
 325        } elsif ($age > 60*60*24*2) {
 326                $age_str = int $age/60/60/24;
 327                $age_str .= " days ago";
 328        } elsif ($age > 60*60*2) {
 329                $age_str = int $age/60/60;
 330                $age_str .= " hours ago";
 331        } elsif ($age > 60*2) {
 332                $age_str = int $age/60;
 333                $age_str .= " min ago";
 334        } elsif ($age > 2) {
 335                $age_str = int $age;
 336                $age_str .= " sec ago";
 337        } else {
 338                $age_str .= " right now";
 339        }
 340        return $age_str;
 341}
 342
 343# convert file mode in octal to symbolic file mode string
 344sub mode_str {
 345        my $mode = oct shift;
 346
 347        if (S_ISDIR($mode & S_IFMT)) {
 348                return 'drwxr-xr-x';
 349        } elsif (S_ISLNK($mode)) {
 350                return 'lrwxrwxrwx';
 351        } elsif (S_ISREG($mode)) {
 352                # git cares only about the executable bit
 353                if ($mode & S_IXUSR) {
 354                        return '-rwxr-xr-x';
 355                } else {
 356                        return '-rw-r--r--';
 357                };
 358        } else {
 359                return '----------';
 360        }
 361}
 362
 363# convert file mode in octal to file type string
 364sub file_type {
 365        my $mode = oct shift;
 366
 367        if (S_ISDIR($mode & S_IFMT)) {
 368                return "directory";
 369        } elsif (S_ISLNK($mode)) {
 370                return "symlink";
 371        } elsif (S_ISREG($mode)) {
 372                return "file";
 373        } else {
 374                return "unknown";
 375        }
 376}
 377
 378## ----------------------------------------------------------------------
 379## functions returning short HTML fragments, or transforming HTML fragments
 380## which don't beling to other sections
 381
 382# format line of commit message or tag comment
 383sub format_log_line_html {
 384        my $line = shift;
 385
 386        $line = esc_html($line);
 387        $line =~ s/ /&nbsp;/g;
 388        if ($line =~ m/([0-9a-fA-F]{40})/) {
 389                my $hash_text = $1;
 390                if (git_get_type($hash_text) eq "commit") {
 391                        my $link = $cgi->a({-class => "text", -href => href(action=>"commit", hash=>$hash_text)}, $hash_text);
 392                        $line =~ s/$hash_text/$link/;
 393                }
 394        }
 395        return $line;
 396}
 397
 398# format marker of refs pointing to given object
 399sub format_ref_marker {
 400        my ($refs, $id) = @_;
 401        my $markers = '';
 402
 403        if (defined $refs->{$id}) {
 404                foreach my $ref (@{$refs->{$id}}) {
 405                        my ($type, $name) = qw();
 406                        # e.g. tags/v2.6.11 or heads/next
 407                        if ($ref =~ m!^(.*?)s?/(.*)$!) {
 408                                $type = $1;
 409                                $name = $2;
 410                        } else {
 411                                $type = "ref";
 412                                $name = $ref;
 413                        }
 414
 415                        $markers .= " <span class=\"$type\">" . esc_html($name) . "</span>";
 416                }
 417        }
 418
 419        if ($markers) {
 420                return ' <span class="refs">'. $markers . '</span>';
 421        } else {
 422                return "";
 423        }
 424}
 425
 426# format, perhaps shortened and with markers, title line
 427sub format_subject_html {
 428        my ($long, $short, $href, $extra) = @_;
 429        $extra = '' unless defined($extra);
 430
 431        if (length($short) < length($long)) {
 432                return $cgi->a({-href => $href, -class => "list",
 433                                -title => $long},
 434                       esc_html($short) . $extra);
 435        } else {
 436                return $cgi->a({-href => $href, -class => "list"},
 437                       esc_html($long)  . $extra);
 438        }
 439}
 440
 441## ----------------------------------------------------------------------
 442## git utility subroutines, invoking git commands
 443
 444# get HEAD ref of given project as hash
 445sub git_get_head_hash {
 446        my $project = shift;
 447        my $oENV = $ENV{'GIT_DIR'};
 448        my $retval = undef;
 449        $ENV{'GIT_DIR'} = "$projectroot/$project";
 450        if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
 451                my $head = <$fd>;
 452                close $fd;
 453                if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
 454                        $retval = $1;
 455                }
 456        }
 457        if (defined $oENV) {
 458                $ENV{'GIT_DIR'} = $oENV;
 459        }
 460        return $retval;
 461}
 462
 463# get type of given object
 464sub git_get_type {
 465        my $hash = shift;
 466
 467        open my $fd, "-|", $GIT, "cat-file", '-t', $hash or return;
 468        my $type = <$fd>;
 469        close $fd or return;
 470        chomp $type;
 471        return $type;
 472}
 473
 474sub git_get_project_config {
 475        my $key = shift;
 476
 477        return unless ($key);
 478        $key =~ s/^gitweb\.//;
 479        return if ($key =~ m/\W/);
 480
 481        my $val = qx($GIT repo-config --get gitweb.$key);
 482        return ($val);
 483}
 484
 485sub git_get_project_config_bool {
 486        my $val = git_get_project_config (@_);
 487        if ($val and $val =~ m/true|yes|on/) {
 488                return (1);
 489        }
 490        return; # implicit false
 491}
 492
 493# get hash of given path at given ref
 494sub git_get_hash_by_path {
 495        my $base = shift;
 496        my $path = shift || return undef;
 497
 498        my $tree = $base;
 499
 500        open my $fd, "-|", $GIT, "ls-tree", $base, "--", $path
 501                or die_error(undef, "Open git-ls-tree failed");
 502        my $line = <$fd>;
 503        close $fd or return undef;
 504
 505        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa  panic.c'
 506        $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
 507        return $3;
 508}
 509
 510## ......................................................................
 511## git utility functions, directly accessing git repository
 512
 513# assumes that PATH is not symref
 514sub git_get_hash_by_ref {
 515        my $path = shift;
 516
 517        open my $fd, "$projectroot/$path" or return undef;
 518        my $head = <$fd>;
 519        close $fd;
 520        chomp $head;
 521        if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 522                return $head;
 523        }
 524}
 525
 526sub git_get_project_description {
 527        my $path = shift;
 528
 529        open my $fd, "$projectroot/$path/description" or return undef;
 530        my $descr = <$fd>;
 531        close $fd;
 532        chomp $descr;
 533        return $descr;
 534}
 535
 536sub git_get_project_url_list {
 537        my $path = shift;
 538
 539        open my $fd, "$projectroot/$path/cloneurl" or return undef;
 540        my @git_project_url_list = map { chomp; $_ } <$fd>;
 541        close $fd;
 542
 543        return wantarray ? @git_project_url_list : \@git_project_url_list;
 544}
 545
 546sub git_get_projects_list {
 547        my @list;
 548
 549        if (-d $projects_list) {
 550                # search in directory
 551                my $dir = $projects_list;
 552                opendir my ($dh), $dir or return undef;
 553                while (my $dir = readdir($dh)) {
 554                        if (-e "$projectroot/$dir/HEAD") {
 555                                my $pr = {
 556                                        path => $dir,
 557                                };
 558                                push @list, $pr
 559                        }
 560                }
 561                closedir($dh);
 562        } elsif (-f $projects_list) {
 563                # read from file(url-encoded):
 564                # 'git%2Fgit.git Linus+Torvalds'
 565                # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 566                # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 567                open my ($fd), $projects_list or return undef;
 568                while (my $line = <$fd>) {
 569                        chomp $line;
 570                        my ($path, $owner) = split ' ', $line;
 571                        $path = unescape($path);
 572                        $owner = unescape($owner);
 573                        if (!defined $path) {
 574                                next;
 575                        }
 576                        if (-e "$projectroot/$path/HEAD") {
 577                                my $pr = {
 578                                        path => $path,
 579                                        owner => decode("utf8", $owner, Encode::FB_DEFAULT),
 580                                };
 581                                push @list, $pr
 582                        }
 583                }
 584                close $fd;
 585        }
 586        @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 587        return @list;
 588}
 589
 590sub git_get_project_owner {
 591        my $project = shift;
 592        my $owner;
 593
 594        return undef unless $project;
 595
 596        # read from file (url-encoded):
 597        # 'git%2Fgit.git Linus+Torvalds'
 598        # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 599        # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 600        if (-f $projects_list) {
 601                open (my $fd , $projects_list);
 602                while (my $line = <$fd>) {
 603                        chomp $line;
 604                        my ($pr, $ow) = split ' ', $line;
 605                        $pr = unescape($pr);
 606                        $ow = unescape($ow);
 607                        if ($pr eq $project) {
 608                                $owner = decode("utf8", $ow, Encode::FB_DEFAULT);
 609                                last;
 610                        }
 611                }
 612                close $fd;
 613        }
 614        if (!defined $owner) {
 615                $owner = get_file_owner("$projectroot/$project");
 616        }
 617
 618        return $owner;
 619}
 620
 621sub git_get_references {
 622        my $type = shift || "";
 623        my %refs;
 624        my $fd;
 625        # 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c      refs/tags/v2.6.11
 626        # c39ae07f393806ccf406ef966e9a15afc43cc36a      refs/tags/v2.6.11^{}
 627        if (-f "$projectroot/$project/info/refs") {
 628                open $fd, "$projectroot/$project/info/refs"
 629                        or return;
 630        } else {
 631                open $fd, "-|", $GIT, "ls-remote", "."
 632                        or return;
 633        }
 634
 635        while (my $line = <$fd>) {
 636                chomp $line;
 637                if ($line =~ m/^([0-9a-fA-F]{40})\trefs\/($type\/?[^\^]+)/) {
 638                        if (defined $refs{$1}) {
 639                                push @{$refs{$1}}, $2;
 640                        } else {
 641                                $refs{$1} = [ $2 ];
 642                        }
 643                }
 644        }
 645        close $fd or return;
 646        return \%refs;
 647}
 648
 649## ----------------------------------------------------------------------
 650## parse to hash functions
 651
 652sub parse_date {
 653        my $epoch = shift;
 654        my $tz = shift || "-0000";
 655
 656        my %date;
 657        my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 658        my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 659        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 660        $date{'hour'} = $hour;
 661        $date{'minute'} = $min;
 662        $date{'mday'} = $mday;
 663        $date{'day'} = $days[$wday];
 664        $date{'month'} = $months[$mon];
 665        $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 666        $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 667
 668        $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 669        my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 670        ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 671        $date{'hour_local'} = $hour;
 672        $date{'minute_local'} = $min;
 673        $date{'tz_local'} = $tz;
 674        return %date;
 675}
 676
 677sub parse_tag {
 678        my $tag_id = shift;
 679        my %tag;
 680        my @comment;
 681
 682        open my $fd, "-|", $GIT, "cat-file", "tag", $tag_id or return;
 683        $tag{'id'} = $tag_id;
 684        while (my $line = <$fd>) {
 685                chomp $line;
 686                if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 687                        $tag{'object'} = $1;
 688                } elsif ($line =~ m/^type (.+)$/) {
 689                        $tag{'type'} = $1;
 690                } elsif ($line =~ m/^tag (.+)$/) {
 691                        $tag{'name'} = $1;
 692                } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 693                        $tag{'author'} = $1;
 694                        $tag{'epoch'} = $2;
 695                        $tag{'tz'} = $3;
 696                } elsif ($line =~ m/--BEGIN/) {
 697                        push @comment, $line;
 698                        last;
 699                } elsif ($line eq "") {
 700                        last;
 701                }
 702        }
 703        push @comment, <$fd>;
 704        $tag{'comment'} = \@comment;
 705        close $fd or return;
 706        if (!defined $tag{'name'}) {
 707                return
 708        };
 709        return %tag
 710}
 711
 712sub parse_commit {
 713        my $commit_id = shift;
 714        my $commit_text = shift;
 715
 716        my @commit_lines;
 717        my %co;
 718
 719        if (defined $commit_text) {
 720                @commit_lines = @$commit_text;
 721        } else {
 722                $/ = "\0";
 723                open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", "--max-count=1", $commit_id or return;
 724                @commit_lines = split '\n', <$fd>;
 725                close $fd or return;
 726                $/ = "\n";
 727                pop @commit_lines;
 728        }
 729        my $header = shift @commit_lines;
 730        if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 731                return;
 732        }
 733        ($co{'id'}, my @parents) = split ' ', $header;
 734        $co{'parents'} = \@parents;
 735        $co{'parent'} = $parents[0];
 736        while (my $line = shift @commit_lines) {
 737                last if $line eq "\n";
 738                if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 739                        $co{'tree'} = $1;
 740                } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 741                        $co{'author'} = $1;
 742                        $co{'author_epoch'} = $2;
 743                        $co{'author_tz'} = $3;
 744                        if ($co{'author'} =~ m/^([^<]+) </) {
 745                                $co{'author_name'} = $1;
 746                        } else {
 747                                $co{'author_name'} = $co{'author'};
 748                        }
 749                } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 750                        $co{'committer'} = $1;
 751                        $co{'committer_epoch'} = $2;
 752                        $co{'committer_tz'} = $3;
 753                        $co{'committer_name'} = $co{'committer'};
 754                        $co{'committer_name'} =~ s/ <.*//;
 755                }
 756        }
 757        if (!defined $co{'tree'}) {
 758                return;
 759        };
 760
 761        foreach my $title (@commit_lines) {
 762                $title =~ s/^    //;
 763                if ($title ne "") {
 764                        $co{'title'} = chop_str($title, 80, 5);
 765                        # remove leading stuff of merges to make the interesting part visible
 766                        if (length($title) > 50) {
 767                                $title =~ s/^Automatic //;
 768                                $title =~ s/^merge (of|with) /Merge ... /i;
 769                                if (length($title) > 50) {
 770                                        $title =~ s/(http|rsync):\/\///;
 771                                }
 772                                if (length($title) > 50) {
 773                                        $title =~ s/(master|www|rsync)\.//;
 774                                }
 775                                if (length($title) > 50) {
 776                                        $title =~ s/kernel.org:?//;
 777                                }
 778                                if (length($title) > 50) {
 779                                        $title =~ s/\/pub\/scm//;
 780                                }
 781                        }
 782                        $co{'title_short'} = chop_str($title, 50, 5);
 783                        last;
 784                }
 785        }
 786        # remove added spaces
 787        foreach my $line (@commit_lines) {
 788                $line =~ s/^    //;
 789        }
 790        $co{'comment'} = \@commit_lines;
 791
 792        my $age = time - $co{'committer_epoch'};
 793        $co{'age'} = $age;
 794        $co{'age_string'} = age_string($age);
 795        my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 796        if ($age > 60*60*24*7*2) {
 797                $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 798                $co{'age_string_age'} = $co{'age_string'};
 799        } else {
 800                $co{'age_string_date'} = $co{'age_string'};
 801                $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 802        }
 803        return %co;
 804}
 805
 806# parse ref from ref_file, given by ref_id, with given type
 807sub parse_ref {
 808        my $ref_file = shift;
 809        my $ref_id = shift;
 810        my $type = shift || git_get_type($ref_id);
 811        my %ref_item;
 812
 813        $ref_item{'type'} = $type;
 814        $ref_item{'id'} = $ref_id;
 815        $ref_item{'epoch'} = 0;
 816        $ref_item{'age'} = "unknown";
 817        if ($type eq "tag") {
 818                my %tag = parse_tag($ref_id);
 819                $ref_item{'comment'} = $tag{'comment'};
 820                if ($tag{'type'} eq "commit") {
 821                        my %co = parse_commit($tag{'object'});
 822                        $ref_item{'epoch'} = $co{'committer_epoch'};
 823                        $ref_item{'age'} = $co{'age_string'};
 824                } elsif (defined($tag{'epoch'})) {
 825                        my $age = time - $tag{'epoch'};
 826                        $ref_item{'epoch'} = $tag{'epoch'};
 827                        $ref_item{'age'} = age_string($age);
 828                }
 829                $ref_item{'reftype'} = $tag{'type'};
 830                $ref_item{'name'} = $tag{'name'};
 831                $ref_item{'refid'} = $tag{'object'};
 832        } elsif ($type eq "commit"){
 833                my %co = parse_commit($ref_id);
 834                $ref_item{'reftype'} = "commit";
 835                $ref_item{'name'} = $ref_file;
 836                $ref_item{'title'} = $co{'title'};
 837                $ref_item{'refid'} = $ref_id;
 838                $ref_item{'epoch'} = $co{'committer_epoch'};
 839                $ref_item{'age'} = $co{'age_string'};
 840        } else {
 841                $ref_item{'reftype'} = $type;
 842                $ref_item{'name'} = $ref_file;
 843                $ref_item{'refid'} = $ref_id;
 844        }
 845
 846        return %ref_item;
 847}
 848
 849## ......................................................................
 850## parse to array of hashes functions
 851
 852sub git_get_refs_list {
 853        my $ref_dir = shift;
 854        my @reflist;
 855
 856        my @refs;
 857        my $pfxlen = length("$projectroot/$project/$ref_dir");
 858        File::Find::find(sub {
 859                return if (/^\./);
 860                if (-f $_) {
 861                        push @refs, substr($File::Find::name, $pfxlen + 1);
 862                }
 863        }, "$projectroot/$project/$ref_dir");
 864
 865        foreach my $ref_file (@refs) {
 866                my $ref_id = git_get_hash_by_ref("$project/$ref_dir/$ref_file");
 867                my $type = git_get_type($ref_id) || next;
 868                my %ref_item = parse_ref($ref_file, $ref_id, $type);
 869
 870                push @reflist, \%ref_item;
 871        }
 872        # sort refs by age
 873        @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
 874        return \@reflist;
 875}
 876
 877## ----------------------------------------------------------------------
 878## filesystem-related functions
 879
 880sub get_file_owner {
 881        my $path = shift;
 882
 883        my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 884        my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 885        if (!defined $gcos) {
 886                return undef;
 887        }
 888        my $owner = $gcos;
 889        $owner =~ s/[,;].*$//;
 890        return decode("utf8", $owner, Encode::FB_DEFAULT);
 891}
 892
 893## ......................................................................
 894## mimetype related functions
 895
 896sub mimetype_guess_file {
 897        my $filename = shift;
 898        my $mimemap = shift;
 899        -r $mimemap or return undef;
 900
 901        my %mimemap;
 902        open(MIME, $mimemap) or return undef;
 903        while (<MIME>) {
 904                next if m/^#/; # skip comments
 905                my ($mime, $exts) = split(/\t+/);
 906                if (defined $exts) {
 907                        my @exts = split(/\s+/, $exts);
 908                        foreach my $ext (@exts) {
 909                                $mimemap{$ext} = $mime;
 910                        }
 911                }
 912        }
 913        close(MIME);
 914
 915        $filename =~ /\.(.*?)$/;
 916        return $mimemap{$1};
 917}
 918
 919sub mimetype_guess {
 920        my $filename = shift;
 921        my $mime;
 922        $filename =~ /\./ or return undef;
 923
 924        if ($mimetypes_file) {
 925                my $file = $mimetypes_file;
 926                if ($file !~ m!^/!) { # if it is relative path
 927                        # it is relative to project
 928                        $file = "$projectroot/$project/$file";
 929                }
 930                $mime = mimetype_guess_file($filename, $file);
 931        }
 932        $mime ||= mimetype_guess_file($filename, '/etc/mime.types');
 933        return $mime;
 934}
 935
 936sub blob_mimetype {
 937        my $fd = shift;
 938        my $filename = shift;
 939
 940        if ($filename) {
 941                my $mime = mimetype_guess($filename);
 942                $mime and return $mime;
 943        }
 944
 945        # just in case
 946        return $default_blob_plain_mimetype unless $fd;
 947
 948        if (-T $fd) {
 949                return 'text/plain' .
 950                       ($default_text_plain_charset ? '; charset='.$default_text_plain_charset : '');
 951        } elsif (! $filename) {
 952                return 'application/octet-stream';
 953        } elsif ($filename =~ m/\.png$/i) {
 954                return 'image/png';
 955        } elsif ($filename =~ m/\.gif$/i) {
 956                return 'image/gif';
 957        } elsif ($filename =~ m/\.jpe?g$/i) {
 958                return 'image/jpeg';
 959        } else {
 960                return 'application/octet-stream';
 961        }
 962}
 963
 964## ======================================================================
 965## functions printing HTML: header, footer, error page
 966
 967sub git_header_html {
 968        my $status = shift || "200 OK";
 969        my $expires = shift;
 970
 971        my $title = "$site_name git";
 972        if (defined $project) {
 973                $title .= " - $project";
 974                if (defined $action) {
 975                        $title .= "/$action";
 976                        if (defined $file_name) {
 977                                $title .= " - $file_name";
 978                                if ($action eq "tree" && $file_name !~ m|/$|) {
 979                                        $title .= "/";
 980                                }
 981                        }
 982                }
 983        }
 984        my $content_type;
 985        # require explicit support from the UA if we are to send the page as
 986        # 'application/xhtml+xml', otherwise send it as plain old 'text/html'.
 987        # we have to do this because MSIE sometimes globs '*/*', pretending to
 988        # support xhtml+xml but choking when it gets what it asked for.
 989        if (defined $cgi->http('HTTP_ACCEPT') && $cgi->http('HTTP_ACCEPT') =~ m/(,|;|\s|^)application\/xhtml\+xml(,|;|\s|$)/ && $cgi->Accept('application/xhtml+xml') != 0) {
 990                $content_type = 'application/xhtml+xml';
 991        } else {
 992                $content_type = 'text/html';
 993        }
 994        print $cgi->header(-type=>$content_type, -charset => 'utf-8', -status=> $status, -expires => $expires);
 995        print <<EOF;
 996<?xml version="1.0" encoding="utf-8"?>
 997<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 998<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
 999<!-- git web interface version $version, (C) 2005-2006, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke -->
1000<!-- git core binaries version $git_version -->
1001<head>
1002<meta http-equiv="content-type" content="$content_type; charset=utf-8"/>
1003<meta name="generator" content="gitweb/$version git/$git_version"/>
1004<meta name="robots" content="index, nofollow"/>
1005<title>$title</title>
1006<link rel="stylesheet" type="text/css" href="$stylesheet"/>
1007EOF
1008        if (defined $project) {
1009                printf('<link rel="alternate" title="%s log" '.
1010                       'href="%s" type="application/rss+xml"/>'."\n",
1011                       esc_param($project), href(action=>"rss"));
1012        }
1013
1014        print "</head>\n" .
1015              "<body>\n" .
1016              "<div class=\"page_header\">\n" .
1017              "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
1018              "<img src=\"$logo\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
1019              "</a>\n";
1020        print $cgi->a({-href => esc_param($home_link)}, $home_link_str) . " / ";
1021        if (defined $project) {
1022                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
1023                if (defined $action) {
1024                        print " / $action";
1025                }
1026                print "\n";
1027                if (!defined $searchtext) {
1028                        $searchtext = "";
1029                }
1030                my $search_hash;
1031                if (defined $hash_base) {
1032                        $search_hash = $hash_base;
1033                } elsif (defined $hash) {
1034                        $search_hash = $hash;
1035                } else {
1036                        $search_hash = "HEAD";
1037                }
1038                $cgi->param("a", "search");
1039                $cgi->param("h", $search_hash);
1040                print $cgi->startform(-method => "get", -action => $my_uri) .
1041                      "<div class=\"search\">\n" .
1042                      $cgi->hidden(-name => "p") . "\n" .
1043                      $cgi->hidden(-name => "a") . "\n" .
1044                      $cgi->hidden(-name => "h") . "\n" .
1045                      $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
1046                      "</div>" .
1047                      $cgi->end_form() . "\n";
1048        }
1049        print "</div>\n";
1050}
1051
1052sub git_footer_html {
1053        print "<div class=\"page_footer\">\n";
1054        if (defined $project) {
1055                my $descr = git_get_project_description($project);
1056                if (defined $descr) {
1057                        print "<div class=\"page_footer_text\">" . esc_html($descr) . "</div>\n";
1058                }
1059                print $cgi->a({-href => href(action=>"rss"), -class => "rss_logo"}, "RSS") . "\n";
1060        } else {
1061                print $cgi->a({-href => "$my_uri?" . esc_param("a=opml"), -class => "rss_logo"}, "OPML") . "\n";
1062        }
1063        print "</div>\n" .
1064              "</body>\n" .
1065              "</html>";
1066}
1067
1068sub die_error {
1069        my $status = shift || "403 Forbidden";
1070        my $error = shift || "Malformed query, file missing or permission denied";
1071
1072        git_header_html($status);
1073        print "<div class=\"page_body\">\n" .
1074              "<br/><br/>\n" .
1075              "$status - $error\n" .
1076              "<br/>\n" .
1077              "</div>\n";
1078        git_footer_html();
1079        exit;
1080}
1081
1082## ----------------------------------------------------------------------
1083## functions printing or outputting HTML: navigation
1084
1085sub git_print_page_nav {
1086        my ($current, $suppress, $head, $treehead, $treebase, $extra) = @_;
1087        $extra = '' if !defined $extra; # pager or formats
1088
1089        my @navs = qw(summary shortlog log commit commitdiff tree);
1090        if ($suppress) {
1091                @navs = grep { $_ ne $suppress } @navs;
1092        }
1093
1094        my %arg = map { $_ => {action=>$_} } @navs;
1095        if (defined $head) {
1096                for (qw(commit commitdiff)) {
1097                        $arg{$_}{hash} = $head;
1098                }
1099                if ($current =~ m/^(tree | log | shortlog | commit | commitdiff | search)$/x) {
1100                        for (qw(shortlog log)) {
1101                                $arg{$_}{hash} = $head;
1102                        }
1103                }
1104        }
1105        $arg{tree}{hash} = $treehead if defined $treehead;
1106        $arg{tree}{hash_base} = $treebase if defined $treebase;
1107
1108        print "<div class=\"page_nav\">\n" .
1109                (join " | ",
1110                 map { $_ eq $current ?
1111                       $_ : $cgi->a({-href => href(%{$arg{$_}})}, "$_")
1112                 } @navs);
1113        print "<br/>\n$extra<br/>\n" .
1114              "</div>\n";
1115}
1116
1117sub format_paging_nav {
1118        my ($action, $hash, $head, $page, $nrevs) = @_;
1119        my $paging_nav;
1120
1121
1122        if ($hash ne $head || $page) {
1123                $paging_nav .= $cgi->a({-href => href(action=>$action)}, "HEAD");
1124        } else {
1125                $paging_nav .= "HEAD";
1126        }
1127
1128        if ($page > 0) {
1129                $paging_nav .= " &sdot; " .
1130                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page-1),
1131                                 -accesskey => "p", -title => "Alt-p"}, "prev");
1132        } else {
1133                $paging_nav .= " &sdot; prev";
1134        }
1135
1136        if ($nrevs >= (100 * ($page+1)-1)) {
1137                $paging_nav .= " &sdot; " .
1138                        $cgi->a({-href => href(action=>$action, hash=>$hash, page=>$page+1),
1139                                 -accesskey => "n", -title => "Alt-n"}, "next");
1140        } else {
1141                $paging_nav .= " &sdot; next";
1142        }
1143
1144        return $paging_nav;
1145}
1146
1147## ......................................................................
1148## functions printing or outputting HTML: div
1149
1150sub git_print_header_div {
1151        my ($action, $title, $hash, $hash_base) = @_;
1152        my %args = ();
1153
1154        $args{action} = $action;
1155        $args{hash} = $hash if $hash;
1156        $args{hash_base} = $hash_base if $hash_base;
1157
1158        print "<div class=\"header\">\n" .
1159              $cgi->a({-href => href(%args), -class => "title"},
1160              $title ? $title : $action) .
1161              "\n</div>\n";
1162}
1163
1164sub git_print_page_path {
1165        my $name = shift;
1166        my $type = shift;
1167
1168        if (!defined $name) {
1169                print "<div class=\"page_path\"><b>/</b></div>\n";
1170        } elsif (defined $type && $type eq 'blob') {
1171                print "<div class=\"page_path\"><b>" .
1172                        $cgi->a({-href => href(action=>"blob_plain", file_name=>$file_name)}, esc_html($name)) . "</b><br/></div>\n";
1173        } else {
1174                print "<div class=\"page_path\"><b>" . esc_html($name) . "</b><br/></div>\n";
1175        }
1176}
1177
1178## ......................................................................
1179## functions printing large fragments of HTML
1180
1181sub git_difftree_body {
1182        my ($difftree, $parent) = @_;
1183
1184        print "<div class=\"list_head\">\n";
1185        if ($#{$difftree} > 10) {
1186                print(($#{$difftree} + 1) . " files changed:\n");
1187        }
1188        print "</div>\n";
1189
1190        print "<table class=\"diff_tree\">\n";
1191        my $alternate = 0;
1192        foreach my $line (@{$difftree}) {
1193                # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M   ls-files.c'
1194                # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M   rev-tree.c'
1195                if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/) {
1196                        next;
1197                }
1198                my $from_mode = $1;
1199                my $to_mode = $2;
1200                my $from_id = $3;
1201                my $to_id = $4;
1202                my $status = $5;
1203                my $similarity = $6; # score
1204                my $file = validate_input(unquote($7));
1205
1206                if ($alternate) {
1207                        print "<tr class=\"dark\">\n";
1208                } else {
1209                        print "<tr class=\"light\">\n";
1210                }
1211                $alternate ^= 1;
1212
1213                if ($status eq "A") { # created
1214                        my $mode_chng = "";
1215                        if (S_ISREG(oct $to_mode)) {
1216                                $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
1217                        }
1218                        print "<td>" .
1219                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
1220                                      -class => "list"}, esc_html($file)) .
1221                              "</td>\n" .
1222                              "<td><span class=\"file_status new\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
1223                              "<td class=\"link\">" .
1224                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob") .
1225                              "</td>\n";
1226
1227                } elsif ($status eq "D") { # deleted
1228                        print "<td>" .
1229                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file),
1230                                       -class => "list"}, esc_html($file)) . "</td>\n" .
1231                              "<td><span class=\"file_status deleted\">[deleted " . file_type($from_mode). "]</span></td>\n" .
1232                              "<td class=\"link\">" .
1233                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$file)}, "blob") . " | " .
1234                              $cgi->a({-href => href(action=>"history", hash_base=>$parent, file_name=>$file)}, "history") .
1235                              "</td>\n"
1236
1237                } elsif ($status eq "M" || $status eq "T") { # modified, or type changed
1238                        my $mode_chnge = "";
1239                        if ($from_mode != $to_mode) {
1240                                $mode_chnge = " <span class=\"file_status mode_chnge\">[changed";
1241                                if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
1242                                        $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
1243                                }
1244                                if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
1245                                        if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
1246                                                $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
1247                                        } elsif (S_ISREG($to_mode)) {
1248                                                $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
1249                                        }
1250                                }
1251                                $mode_chnge .= "]</span>\n";
1252                        }
1253                        print "<td>";
1254                        if ($to_id ne $from_id) { # modified
1255                                print $cgi->a({-href => href(action=>"blobdiff", hash=>$to_id, hash_parent=>$from_id, hash_base=>$hash, file_name=>$file),
1256                                              -class => "list"}, esc_html($file));
1257                        } else { # mode changed
1258                                print $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file),
1259                                              -class => "list"}, esc_html($file));
1260                        }
1261                        print "</td>\n" .
1262                              "<td>$mode_chnge</td>\n" .
1263                              "<td class=\"link\">" .
1264                                $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$file)}, "blob");
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)}, "diff");
1267                        }
1268                        print " | " . $cgi->a({-href => href(action=>"history", hash_base=>$hash, file_name=>$file)}, "history") . "\n";
1269                        print "</td>\n";
1270
1271                } elsif ($status eq "R") { # renamed
1272                        my ($from_file, $to_file) = split "\t", $file;
1273                        my $mode_chng = "";
1274                        if ($from_mode != $to_mode) {
1275                                $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1276                        }
1277                        print "<td>" .
1278                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
1279                                      -class => "list"}, esc_html($to_file)) . "</td>\n" .
1280                              "<td><span class=\"file_status moved\">[moved from " .
1281                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
1282                                      -class => "list"}, esc_html($from_file)) .
1283                              " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1284                              "<td class=\"link\">" .
1285                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
1286                        if ($to_id ne $from_id) {
1287                                print " | " .
1288                                      $cgi->a({-href => "$my_uri?" .
1289                                              esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file;fp=$from_file")}, "diff");
1290                        }
1291                        print "</td>\n";
1292
1293                } elsif ($status eq "C") { # copied
1294                        my ($from_file, $to_file) = split "\t", $file;
1295                        my $mode_chng = "";
1296                        if ($from_mode != $to_mode) {
1297                                $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1298                        }
1299                        print "<td>" .
1300                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file),
1301                                      -class => "list"}, esc_html($to_file)) . "</td>\n" .
1302                              "<td><span class=\"file_status copied\">[copied from " .
1303                              $cgi->a({-href => href(action=>"blob", hash=>$from_id, hash_base=>$parent, file_name=>$from_file),
1304                                      -class => "list"}, esc_html($from_file)) .
1305                              " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1306                              "<td class=\"link\">" .
1307                              $cgi->a({-href => href(action=>"blob", hash=>$to_id, hash_base=>$hash, file_name=>$to_file)}, "blob");
1308                        if ($to_id ne $from_id) {
1309                                print " | " .
1310                                      $cgi->a({-href => "$my_uri?" .
1311                                              esc_param("p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file;fp=$from_file")}, "diff");
1312                        }
1313                        print "</td>\n";
1314                } # we should not encounter Unmerged (U) or Unknown (X) status
1315                print "</tr>\n";
1316        }
1317        print "</table>\n";
1318}
1319
1320sub git_shortlog_body {
1321        # uses global variable $project
1322        my ($revlist, $from, $to, $refs, $extra) = @_;
1323        $from = 0 unless defined $from;
1324        $to = $#{$revlist} if (!defined $to || $#{$revlist} < $to);
1325
1326        print "<table class=\"shortlog\" cellspacing=\"0\">\n";
1327        my $alternate = 0;
1328        for (my $i = $from; $i <= $to; $i++) {
1329                my $commit = $revlist->[$i];
1330                #my $ref = defined $refs ? format_ref_marker($refs, $commit) : '';
1331                my $ref = format_ref_marker($refs, $commit);
1332                my %co = parse_commit($commit);
1333                if ($alternate) {
1334                        print "<tr class=\"dark\">\n";
1335                } else {
1336                        print "<tr class=\"light\">\n";
1337                }
1338                $alternate ^= 1;
1339                # git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
1340                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1341                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
1342                      "<td>";
1343                print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
1344                print "</td>\n" .
1345                      "<td class=\"link\">" .
1346                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1347                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
1348                      "</td>\n" .
1349                      "</tr>\n";
1350        }
1351        if (defined $extra) {
1352                print "<tr>\n" .
1353                      "<td colspan=\"4\">$extra</td>\n" .
1354                      "</tr>\n";
1355        }
1356        print "</table>\n";
1357}
1358
1359sub git_history_body {
1360        # Warning: assumes constant type (blob or tree) during history
1361        my ($fd, $refs, $hash_base, $ftype, $extra) = @_;
1362
1363        print "<table class=\"history\" cellspacing=\"0\">\n";
1364        my $alternate = 0;
1365        while (my $line = <$fd>) {
1366                if ($line !~ m/^([0-9a-fA-F]{40})/) {
1367                        next;
1368                }
1369
1370                my $commit = $1;
1371                my %co = parse_commit($commit);
1372                if (!%co) {
1373                        next;
1374                }
1375
1376                my $ref = format_ref_marker($refs, $commit);
1377
1378                if ($alternate) {
1379                        print "<tr class=\"dark\">\n";
1380                } else {
1381                        print "<tr class=\"light\">\n";
1382                }
1383                $alternate ^= 1;
1384                print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
1385                      # shortlog uses      chop_str($co{'author_name'}, 10)
1386                      "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
1387                      "<td>";
1388                # originally git_history used chop_str($co{'title'}, 50)
1389                print format_subject_html($co{'title'}, $co{'title_short'}, href(action=>"commit", hash=>$commit), $ref);
1390                print "</td>\n" .
1391                      "<td class=\"link\">" .
1392                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") . " | " .
1393                      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
1394                      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
1395
1396                if ($ftype eq 'blob') {
1397                        my $blob_current = git_get_hash_by_path($hash_base, $file_name);
1398                        my $blob_parent  = git_get_hash_by_path($commit, $file_name);
1399                        if (defined $blob_current && defined $blob_parent &&
1400                                        $blob_current ne $blob_parent) {
1401                                print " | " .
1402                                        $cgi->a({-href => href(action=>"blobdiff", hash=>$blob_current, hash_parent=>$blob_parent, hash_base=>$commit, file_name=>$file_name)},
1403                                                "diff to current");
1404                        }
1405                }
1406                print "</td>\n" .
1407                      "</tr>\n";
1408        }
1409        if (defined $extra) {
1410                print "<tr>\n" .
1411                      "<td colspan=\"4\">$extra</td>\n" .
1412                      "</tr>\n";
1413        }
1414        print "</table>\n";
1415}
1416
1417sub git_tags_body {
1418        # uses global variable $project
1419        my ($taglist, $from, $to, $extra) = @_;
1420        $from = 0 unless defined $from;
1421        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1422
1423        print "<table class=\"tags\" cellspacing=\"0\">\n";
1424        my $alternate = 0;
1425        for (my $i = $from; $i <= $to; $i++) {
1426                my $entry = $taglist->[$i];
1427                my %tag = %$entry;
1428                my $comment_lines = $tag{'comment'};
1429                my $comment = shift @$comment_lines;
1430                my $comment_short;
1431                if (defined $comment) {
1432                        $comment_short = chop_str($comment, 30, 5);
1433                }
1434                if ($alternate) {
1435                        print "<tr class=\"dark\">\n";
1436                } else {
1437                        print "<tr class=\"light\">\n";
1438                }
1439                $alternate ^= 1;
1440                print "<td><i>$tag{'age'}</i></td>\n" .
1441                      "<td>" .
1442                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'}),
1443                               -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1444                      "</td>\n" .
1445                      "<td>";
1446                if (defined $comment) {
1447                        print format_subject_html($comment, $comment_short, href(action=>"tag", hash=>$tag{'id'}));
1448                }
1449                print "</td>\n" .
1450                      "<td class=\"selflink\">";
1451                if ($tag{'type'} eq "tag") {
1452                        print $cgi->a({-href => href(action=>"tag", hash=>$tag{'id'})}, "tag");
1453                } else {
1454                        print "&nbsp;";
1455                }
1456                print "</td>\n" .
1457                      "<td class=\"link\">" . " | " .
1458                      $cgi->a({-href => href(action=>$tag{'reftype'}, hash=>$tag{'refid'})}, $tag{'reftype'});
1459                if ($tag{'reftype'} eq "commit") {
1460                        print " | " . $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") .
1461                              " | " . $cgi->a({-href => href(action=>"log", hash=>$tag{'refid'})}, "log");
1462                } elsif ($tag{'reftype'} eq "blob") {
1463                        print " | " . $cgi->a({-href => href(action=>"blob_plain", hash=>$tag{'refid'})}, "raw");
1464                }
1465                print "</td>\n" .
1466                      "</tr>";
1467        }
1468        if (defined $extra) {
1469                print "<tr>\n" .
1470                      "<td colspan=\"5\">$extra</td>\n" .
1471                      "</tr>\n";
1472        }
1473        print "</table>\n";
1474}
1475
1476sub git_heads_body {
1477        # uses global variable $project
1478        my ($taglist, $head, $from, $to, $extra) = @_;
1479        $from = 0 unless defined $from;
1480        $to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
1481
1482        print "<table class=\"heads\" cellspacing=\"0\">\n";
1483        my $alternate = 0;
1484        for (my $i = $from; $i <= $to; $i++) {
1485                my $entry = $taglist->[$i];
1486                my %tag = %$entry;
1487                my $curr = $tag{'id'} eq $head;
1488                if ($alternate) {
1489                        print "<tr class=\"dark\">\n";
1490                } else {
1491                        print "<tr class=\"light\">\n";
1492                }
1493                $alternate ^= 1;
1494                print "<td><i>$tag{'age'}</i></td>\n" .
1495                      ($tag{'id'} eq $head ? "<td class=\"current_head\">" : "<td>") .
1496                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'}),
1497                               -class => "list"}, "<b>" . esc_html($tag{'name'}) . "</b>") .
1498                      "</td>\n" .
1499                      "<td class=\"link\">" .
1500                      $cgi->a({-href => href(action=>"shortlog", hash=>$tag{'name'})}, "shortlog") . " | " .
1501                      $cgi->a({-href => href(action=>"log", hash=>$tag{'name'})}, "log") .
1502                      "</td>\n" .
1503                      "</tr>";
1504        }
1505        if (defined $extra) {
1506                print "<tr>\n" .
1507                      "<td colspan=\"3\">$extra</td>\n" .
1508                      "</tr>\n";
1509        }
1510        print "</table>\n";
1511}
1512
1513## ----------------------------------------------------------------------
1514## functions printing large fragments, format as one of arguments
1515
1516sub git_diff_print {
1517        my $from = shift;
1518        my $from_name = shift;
1519        my $to = shift;
1520        my $to_name = shift;
1521        my $format = shift || "html";
1522
1523        my $from_tmp = "/dev/null";
1524        my $to_tmp = "/dev/null";
1525        my $pid = $$;
1526
1527        # create tmp from-file
1528        if (defined $from) {
1529                $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
1530                open my $fd2, "> $from_tmp";
1531                open my $fd, "-|", $GIT, "cat-file", "blob", $from;
1532                my @file = <$fd>;
1533                print $fd2 @file;
1534                close $fd2;
1535                close $fd;
1536        }
1537
1538        # create tmp to-file
1539        if (defined $to) {
1540                $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
1541                open my $fd2, "> $to_tmp";
1542                open my $fd, "-|", $GIT, "cat-file", "blob", $to;
1543                my @file = <$fd>;
1544                print $fd2 @file;
1545                close $fd2;
1546                close $fd;
1547        }
1548
1549        open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
1550        if ($format eq "plain") {
1551                undef $/;
1552                print <$fd>;
1553                $/ = "\n";
1554        } else {
1555                while (my $line = <$fd>) {
1556                        chomp $line;
1557                        my $char = substr($line, 0, 1);
1558                        my $diff_class = "";
1559                        if ($char eq '+') {
1560                                $diff_class = " add";
1561                        } elsif ($char eq "-") {
1562                                $diff_class = " rem";
1563                        } elsif ($char eq "@") {
1564                                $diff_class = " chunk_header";
1565                        } elsif ($char eq "\\") {
1566                                # skip errors
1567                                next;
1568                        }
1569                        $line = untabify($line);
1570                        print "<div class=\"diff$diff_class\">" . esc_html($line) . "</div>\n";
1571                }
1572        }
1573        close $fd;
1574
1575        if (defined $from) {
1576                unlink($from_tmp);
1577        }
1578        if (defined $to) {
1579                unlink($to_tmp);
1580        }
1581}
1582
1583
1584## ======================================================================
1585## ======================================================================
1586## actions
1587
1588sub git_project_list {
1589        my $order = $cgi->param('o');
1590        if (defined $order && $order !~ m/project|descr|owner|age/) {
1591                die_error(undef, "Unknown order parameter");
1592        }
1593
1594        my @list = git_get_projects_list();
1595        my @projects;
1596        if (!@list) {
1597                die_error(undef, "No projects found");
1598        }
1599        foreach my $pr (@list) {
1600                my $head = git_get_head_hash($pr->{'path'});
1601                if (!defined $head) {
1602                        next;
1603                }
1604                $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
1605                my %co = parse_commit($head);
1606                if (!%co) {
1607                        next;
1608                }
1609                $pr->{'commit'} = \%co;
1610                if (!defined $pr->{'descr'}) {
1611                        my $descr = git_get_project_description($pr->{'path'}) || "";
1612                        $pr->{'descr'} = chop_str($descr, 25, 5);
1613                }
1614                if (!defined $pr->{'owner'}) {
1615                        $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
1616                }
1617                push @projects, $pr;
1618        }
1619
1620        git_header_html();
1621        if (-f $home_text) {
1622                print "<div class=\"index_include\">\n";
1623                open (my $fd, $home_text);
1624                print <$fd>;
1625                close $fd;
1626                print "</div>\n";
1627        }
1628        print "<table class=\"project_list\">\n" .
1629              "<tr>\n";
1630        $order ||= "project";
1631        if ($order eq "project") {
1632                @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
1633                print "<th>Project</th>\n";
1634        } else {
1635                print "<th>" .
1636                      $cgi->a({-href => "$my_uri?" . esc_param("o=project"),
1637                               -class => "header"}, "Project") .
1638                      "</th>\n";
1639        }
1640        if ($order eq "descr") {
1641                @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
1642                print "<th>Description</th>\n";
1643        } else {
1644                print "<th>" .
1645                      $cgi->a({-href => "$my_uri?" . esc_param("o=descr"),
1646                               -class => "header"}, "Description") .
1647                      "</th>\n";
1648        }
1649        if ($order eq "owner") {
1650                @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
1651                print "<th>Owner</th>\n";
1652        } else {
1653                print "<th>" .
1654                      $cgi->a({-href => "$my_uri?" . esc_param("o=owner"),
1655                               -class => "header"}, "Owner") .
1656                      "</th>\n";
1657        }
1658        if ($order eq "age") {
1659                @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
1660                print "<th>Last Change</th>\n";
1661        } else {
1662                print "<th>" .
1663                      $cgi->a({-href => "$my_uri?" . esc_param("o=age"),
1664                               -class => "header"}, "Last Change") .
1665                      "</th>\n";
1666        }
1667        print "<th></th>\n" .
1668              "</tr>\n";
1669        my $alternate = 0;
1670        foreach my $pr (@projects) {
1671                if ($alternate) {
1672                        print "<tr class=\"dark\">\n";
1673                } else {
1674                        print "<tr class=\"light\">\n";
1675                }
1676                $alternate ^= 1;
1677                print "<td>" . $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary"),
1678                                        -class => "list"}, esc_html($pr->{'path'})) . "</td>\n" .
1679                      "<td>" . esc_html($pr->{'descr'}) . "</td>\n" .
1680                      "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
1681                print "<td class=\"". age_class($pr->{'commit'}{'age'}) . "\">" .
1682                      $pr->{'commit'}{'age_string'} . "</td>\n" .
1683                      "<td class=\"link\">" .
1684                      $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=summary")}, "summary")   . " | " .
1685                      $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=shortlog")}, "shortlog") . " | " .
1686                      $cgi->a({-href => "$my_uri?" . esc_param("p=$pr->{'path'};a=log")}, "log") .
1687                      "</td>\n" .
1688                      "</tr>\n";
1689        }
1690        print "</table>\n";
1691        git_footer_html();
1692}
1693
1694sub git_summary {
1695        my $descr = git_get_project_description($project) || "none";
1696        my $head = git_get_head_hash($project);
1697        my %co = parse_commit($head);
1698        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
1699
1700        my $owner = git_get_project_owner($project);
1701
1702        my $refs = git_get_references();
1703        git_header_html();
1704        git_print_page_nav('summary','', $head);
1705
1706        print "<div class=\"title\">&nbsp;</div>\n";
1707        print "<table cellspacing=\"0\">\n" .
1708              "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
1709              "<tr><td>owner</td><td>$owner</td></tr>\n" .
1710              "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n";
1711        # use per project git URL list in $projectroot/$project/cloneurl
1712        # or make project git URL from git base URL and project name
1713        my $url_tag = "URL";
1714        my @url_list = git_get_project_url_list($project);
1715        @url_list = map { "$_/$project" } @git_base_url_list unless @url_list;
1716        foreach my $git_url (@url_list) {
1717                next unless $git_url;
1718                print "<tr><td>$url_tag</td><td>$git_url</td></tr>\n";
1719                $url_tag = "";
1720        }
1721        print "</table>\n";
1722
1723        open my $fd, "-|", $GIT, "rev-list", "--max-count=17", git_get_head_hash($project)
1724                or die_error(undef, "Open git-rev-list failed");
1725        my @revlist = map { chomp; $_ } <$fd>;
1726        close $fd;
1727        git_print_header_div('shortlog');
1728        git_shortlog_body(\@revlist, 0, 15, $refs,
1729                          $cgi->a({-href => href(action=>"shortlog")}, "..."));
1730
1731        my $taglist = git_get_refs_list("refs/tags");
1732        if (defined @$taglist) {
1733                git_print_header_div('tags');
1734                git_tags_body($taglist, 0, 15,
1735                              $cgi->a({-href => href(action=>"tags")}, "..."));
1736        }
1737
1738        my $headlist = git_get_refs_list("refs/heads");
1739        if (defined @$headlist) {
1740                git_print_header_div('heads');
1741                git_heads_body($headlist, $head, 0, 15,
1742                               $cgi->a({-href => href(action=>"heads")}, "..."));
1743        }
1744
1745        git_footer_html();
1746}
1747
1748sub git_tag {
1749        my $head = git_get_head_hash($project);
1750        git_header_html();
1751        git_print_page_nav('','', $head,undef,$head);
1752        my %tag = parse_tag($hash);
1753        git_print_header_div('commit', esc_html($tag{'name'}), $hash);
1754        print "<div class=\"title_text\">\n" .
1755              "<table cellspacing=\"0\">\n" .
1756              "<tr>\n" .
1757              "<td>object</td>\n" .
1758              "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'object'}) . "</td>\n" .
1759              "<td class=\"link\">" . $cgi->a({-href => href(action=>$tag{'type'}, hash=>$tag{'object'})}, $tag{'type'}) . "</td>\n" .
1760              "</tr>\n";
1761        if (defined($tag{'author'})) {
1762                my %ad = parse_date($tag{'epoch'}, $tag{'tz'});
1763                print "<tr><td>author</td><td>" . esc_html($tag{'author'}) . "</td></tr>\n";
1764                print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1765        }
1766        print "</table>\n\n" .
1767              "</div>\n";
1768        print "<div class=\"page_body\">";
1769        my $comment = $tag{'comment'};
1770        foreach my $line (@$comment) {
1771                print esc_html($line) . "<br/>\n";
1772        }
1773        print "</div>\n";
1774        git_footer_html();
1775}
1776
1777sub git_blame2 {
1778        my $fd;
1779        my $ftype;
1780        die_error(undef, "Permission denied") if (!git_get_project_config_bool ('blame'));
1781        die_error('404 Not Found', "File name not defined") if (!$file_name);
1782        $hash_base ||= git_get_head_hash($project);
1783        die_error(undef, "Couldn't find base commit") unless ($hash_base);
1784        my %co = parse_commit($hash_base)
1785                or die_error(undef, "Reading commit failed");
1786        if (!defined $hash) {
1787                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1788                        or die_error(undef, "Error looking up file");
1789        }
1790        $ftype = git_get_type($hash);
1791        if ($ftype !~ "blob") {
1792                die_error("400 Bad Request", "Object is not a blob");
1793        }
1794        open ($fd, "-|", $GIT, "blame", '-l', $file_name, $hash_base)
1795                or die_error(undef, "Open git-blame failed");
1796        git_header_html();
1797        my $formats_nav =
1798                $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
1799                " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
1800        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1801        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
1802        git_print_page_path($file_name, $ftype);
1803        my @rev_color = (qw(light2 dark2));
1804        my $num_colors = scalar(@rev_color);
1805        my $current_color = 0;
1806        my $last_rev;
1807        print "<div class=\"page_body\">\n";
1808        print "<table class=\"blame\">\n";
1809        print "<tr><th>Commit</th><th>Line</th><th>Data</th></tr>\n";
1810        while (<$fd>) {
1811                /^([0-9a-fA-F]{40}).*?(\d+)\)\s{1}(\s*.*)/;
1812                my $full_rev = $1;
1813                my $rev = substr($full_rev, 0, 8);
1814                my $lineno = $2;
1815                my $data = $3;
1816
1817                if (!defined $last_rev) {
1818                        $last_rev = $full_rev;
1819                } elsif ($last_rev ne $full_rev) {
1820                        $last_rev = $full_rev;
1821                        $current_color = ++$current_color % $num_colors;
1822                }
1823                print "<tr class=\"$rev_color[$current_color]\">\n";
1824                print "<td class=\"sha1\">" .
1825                        $cgi->a({-href => href(action=>"commit", hash=>$full_rev, file_name=>$file_name)}, esc_html($rev)) . "</td>\n";
1826                print "<td class=\"linenr\"><a id=\"l$lineno\" href=\"#l$lineno\" class=\"linenr\">" . esc_html($lineno) . "</a></td>\n";
1827                print "<td class=\"pre\">" . esc_html($data) . "</td>\n";
1828                print "</tr>\n";
1829        }
1830        print "</table>\n";
1831        print "</div>";
1832        close $fd or print "Reading blob failed\n";
1833        git_footer_html();
1834}
1835
1836sub git_blame {
1837        my $fd;
1838        die_error('403 Permission denied', "Permission denied") if (!git_get_project_config_bool ('blame'));
1839        die_error('404 Not Found', "File name not defined") if (!$file_name);
1840        $hash_base ||= git_get_head_hash($project);
1841        die_error(undef, "Couldn't find base commit") unless ($hash_base);
1842        my %co = parse_commit($hash_base)
1843                or die_error(undef, "Reading commit failed");
1844        if (!defined $hash) {
1845                $hash = git_get_hash_by_path($hash_base, $file_name, "blob")
1846                        or die_error(undef, "Error lookup file");
1847        }
1848        open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
1849                or die_error(undef, "Open git-annotate failed");
1850        git_header_html();
1851        my $formats_nav =
1852                $cgi->a({-href => href(action=>"blobl", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blob") .
1853                " | " . $cgi->a({-href => href(action=>"blame", file_name=>$file_name)}, "head");
1854        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
1855        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
1856        git_print_page_path($file_name, 'blob');
1857        print "<div class=\"page_body\">\n";
1858        print <<HTML;
1859<table class="blame">
1860  <tr>
1861    <th>Commit</th>
1862    <th>Age</th>
1863    <th>Author</th>
1864    <th>Line</th>
1865    <th>Data</th>
1866  </tr>
1867HTML
1868        my @line_class = (qw(light dark));
1869        my $line_class_len = scalar (@line_class);
1870        my $line_class_num = $#line_class;
1871        while (my $line = <$fd>) {
1872                my $long_rev;
1873                my $short_rev;
1874                my $author;
1875                my $time;
1876                my $lineno;
1877                my $data;
1878                my $age;
1879                my $age_str;
1880                my $age_class;
1881
1882                chomp $line;
1883                $line_class_num = ($line_class_num + 1) % $line_class_len;
1884
1885                if ($line =~ m/^([0-9a-fA-F]{40})\t\(\s*([^\t]+)\t(\d+) \+\d\d\d\d\t(\d+)\)(.*)$/) {
1886                        $long_rev = $1;
1887                        $author   = $2;
1888                        $time     = $3;
1889                        $lineno   = $4;
1890                        $data     = $5;
1891                } else {
1892                        print qq(  <tr><td colspan="5" class="error">Unable to parse: $line</td></tr>\n);
1893                        next;
1894                }
1895                $short_rev  = substr ($long_rev, 0, 8);
1896                $age        = time () - $time;
1897                $age_str    = age_string ($age);
1898                $age_str    =~ s/ /&nbsp;/g;
1899                $age_class  = age_class($age);
1900                $author     = esc_html ($author);
1901                $author     =~ s/ /&nbsp;/g;
1902
1903                $data = untabify($data);
1904                $data = esc_html ($data);
1905
1906                print <<HTML;
1907  <tr class="$line_class[$line_class_num]">
1908    <td class="sha1"><a href="${\href (action=>"commit", hash=>$long_rev)}" class="text">$short_rev..</a></td>
1909    <td class="$age_class">$age_str</td>
1910    <td>$author</td>
1911    <td class="linenr"><a id="$lineno" href="#$lineno" class="linenr">$lineno</a></td>
1912    <td class="pre">$data</td>
1913  </tr>
1914HTML
1915        } # while (my $line = <$fd>)
1916        print "</table>\n\n";
1917        close $fd or print "Reading blob failed.\n";
1918        print "</div>";
1919        git_footer_html();
1920}
1921
1922sub git_tags {
1923        my $head = git_get_head_hash($project);
1924        git_header_html();
1925        git_print_page_nav('','', $head,undef,$head);
1926        git_print_header_div('summary', $project);
1927
1928        my $taglist = git_get_refs_list("refs/tags");
1929        if (defined @$taglist) {
1930                git_tags_body($taglist);
1931        }
1932        git_footer_html();
1933}
1934
1935sub git_heads {
1936        my $head = git_get_head_hash($project);
1937        git_header_html();
1938        git_print_page_nav('','', $head,undef,$head);
1939        git_print_header_div('summary', $project);
1940
1941        my $taglist = git_get_refs_list("refs/heads");
1942        if (defined @$taglist) {
1943                git_heads_body($taglist, $head);
1944        }
1945        git_footer_html();
1946}
1947
1948sub git_blob_plain {
1949        if (!defined $hash) {
1950                if (defined $file_name) {
1951                        my $base = $hash_base || git_get_head_hash($project);
1952                        $hash = git_get_hash_by_path($base, $file_name, "blob")
1953                                or die_error(undef, "Error lookup file");
1954                } else {
1955                        die_error(undef, "No file name defined");
1956                }
1957        }
1958        my $type = shift;
1959        open my $fd, "-|", $GIT, "cat-file", "blob", $hash
1960                or die_error(undef, "Couldn't cat $file_name, $hash");
1961
1962        $type ||= blob_mimetype($fd, $file_name);
1963
1964        # save as filename, even when no $file_name is given
1965        my $save_as = "$hash";
1966        if (defined $file_name) {
1967                $save_as = $file_name;
1968        } elsif ($type =~ m/^text\//) {
1969                $save_as .= '.txt';
1970        }
1971
1972        print $cgi->header(-type => "$type", '-content-disposition' => "inline; filename=\"$save_as\"");
1973        undef $/;
1974        binmode STDOUT, ':raw';
1975        print <$fd>;
1976        binmode STDOUT, ':utf8'; # as set at the beginning of gitweb.cgi
1977        $/ = "\n";
1978        close $fd;
1979}
1980
1981sub git_blob {
1982        if (!defined $hash) {
1983                if (defined $file_name) {
1984                        my $base = $hash_base || git_get_head_hash($project);
1985                        $hash = git_get_hash_by_path($base, $file_name, "blob")
1986                                or die_error(undef, "Error lookup file");
1987                } else {
1988                        die_error(undef, "No file name defined");
1989                }
1990        }
1991        my $have_blame = git_get_project_config_bool ('blame');
1992        open my $fd, "-|", $GIT, "cat-file", "blob", $hash
1993                or die_error(undef, "Couldn't cat $file_name, $hash");
1994        my $mimetype = blob_mimetype($fd, $file_name);
1995        if ($mimetype !~ m/^text\//) {
1996                close $fd;
1997                return git_blob_plain($mimetype);
1998        }
1999        git_header_html();
2000        my $formats_nav = '';
2001        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2002                if (defined $file_name) {
2003                        if ($have_blame) {
2004                                $formats_nav .= $cgi->a({-href => href(action=>"blame", hash=>$hash, hash_base=>$hash_base, file_name=>$file_name)}, "blame") . " | ";
2005                        }
2006                        $formats_nav .=
2007                                $cgi->a({-href => href(action=>"blob_plain", hash=>$hash, file_name=>$file_name)}, "plain") .
2008                                " | " . $cgi->a({-href => href(action=>"blob", hash_base=>"HEAD", file_name=>$file_name)}, "head");
2009                } else {
2010                        $formats_nav .= $cgi->a({-href => href(action=>"blob_plain", hash=>$hash)}, "plain");
2011                }
2012                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2013                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2014        } else {
2015                print "<div class=\"page_nav\">\n" .
2016                      "<br/><br/></div>\n" .
2017                      "<div class=\"title\">$hash</div>\n";
2018        }
2019        git_print_page_path($file_name, "blob");
2020        print "<div class=\"page_body\">\n";
2021        my $nr;
2022        while (my $line = <$fd>) {
2023                chomp $line;
2024                $nr++;
2025                $line = untabify($line);
2026                printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, esc_html($line);
2027        }
2028        close $fd or print "Reading blob failed.\n";
2029        print "</div>";
2030        git_footer_html();
2031}
2032
2033sub git_tree {
2034        if (!defined $hash) {
2035                $hash = git_get_head_hash($project);
2036                if (defined $file_name) {
2037                        my $base = $hash_base || $hash;
2038                        $hash = git_get_hash_by_path($base, $file_name, "tree");
2039                }
2040                if (!defined $hash_base) {
2041                        $hash_base = $hash;
2042                }
2043        }
2044        $/ = "\0";
2045        open my $fd, "-|", $GIT, "ls-tree", '-z', $hash
2046                or die_error(undef, "Open git-ls-tree failed");
2047        my @entries = map { chomp; $_ } <$fd>;
2048        close $fd or die_error(undef, "Reading tree failed");
2049        $/ = "\n";
2050
2051        my $refs = git_get_references();
2052        my $ref = format_ref_marker($refs, $hash_base);
2053        git_header_html();
2054        my $base_key = "";
2055        my $base = "";
2056        my $have_blame = git_get_project_config_bool ('blame');
2057        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2058                $base_key = ";hb=$hash_base";
2059                git_print_page_nav('tree','', $hash_base);
2060                git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash_base);
2061        } else {
2062                print "<div class=\"page_nav\">\n";
2063                print "<br/><br/></div>\n";
2064                print "<div class=\"title\">$hash</div>\n";
2065        }
2066        if (defined $file_name) {
2067                $base = esc_html("$file_name/");
2068        }
2069        git_print_page_path($file_name, 'tree');
2070        print "<div class=\"page_body\">\n";
2071        print "<table cellspacing=\"0\">\n";
2072        my $alternate = 0;
2073        foreach my $line (@entries) {
2074                #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
2075                $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
2076                my $t_mode = $1;
2077                my $t_type = $2;
2078                my $t_hash = $3;
2079                my $t_name = validate_input($4);
2080                if ($alternate) {
2081                        print "<tr class=\"dark\">\n";
2082                } else {
2083                        print "<tr class=\"light\">\n";
2084                }
2085                $alternate ^= 1;
2086                print "<td class=\"mode\">" . mode_str($t_mode) . "</td>\n";
2087                if ($t_type eq "blob") {
2088                        print "<td class=\"list\">" .
2089                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name"), -class => "list"}, esc_html($t_name)) .
2090                              "</td>\n" .
2091                              "<td class=\"link\">" .
2092                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$t_hash$base_key;f=$base$t_name")}, "blob");
2093                        if ($have_blame) {
2094                                print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blame;h=$t_hash$base_key;f=$base$t_name")}, "blame");
2095                        }
2096                        print " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;h=$t_hash;hb=$hash_base;f=$base$t_name")}, "history") .
2097                              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob_plain;h=$t_hash;f=$base$t_name")}, "raw") .
2098                              "</td>\n";
2099                } elsif ($t_type eq "tree") {
2100                        print "<td class=\"list\">" .
2101                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, esc_html($t_name)) .
2102                              "</td>\n" .
2103                              "<td class=\"link\">" .
2104                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$t_hash$base_key;f=$base$t_name")}, "tree") .
2105                              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=history;hb=$hash_base;f=$base$t_name")}, "history") .
2106                              "</td>\n";
2107                }
2108                print "</tr>\n";
2109        }
2110        print "</table>\n" .
2111              "</div>";
2112        git_footer_html();
2113}
2114
2115sub git_log {
2116        my $head = git_get_head_hash($project);
2117        if (!defined $hash) {
2118                $hash = $head;
2119        }
2120        if (!defined $page) {
2121                $page = 0;
2122        }
2123        my $refs = git_get_references();
2124
2125        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2126        open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2127                or die_error(undef, "Open git-rev-list failed");
2128        my @revlist = map { chomp; $_ } <$fd>;
2129        close $fd;
2130
2131        my $paging_nav = format_paging_nav('log', $hash, $head, $page, $#revlist);
2132
2133        git_header_html();
2134        git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
2135
2136        if (!@revlist) {
2137                my %co = parse_commit($hash);
2138
2139                git_print_header_div('summary', $project);
2140                print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
2141        }
2142        for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2143                my $commit = $revlist[$i];
2144                my $ref = format_ref_marker($refs, $commit);
2145                my %co = parse_commit($commit);
2146                next if !%co;
2147                my %ad = parse_date($co{'author_epoch'});
2148                git_print_header_div('commit',
2149                               "<span class=\"age\">$co{'age_string'}</span>" .
2150                               esc_html($co{'title'}) . $ref,
2151                               $commit);
2152                print "<div class=\"title_text\">\n" .
2153                      "<div class=\"log_link\">\n" .
2154                      $cgi->a({-href => href(action=>"commit", hash=>$commit)}, "commit") .
2155                      " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") .
2156                      "<br/>\n" .
2157                      "</div>\n" .
2158                      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
2159                      "</div>\n" .
2160                      "<div class=\"log_body\">\n";
2161                my $comment = $co{'comment'};
2162                my $empty = 0;
2163                foreach my $line (@$comment) {
2164                        if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2165                                next;
2166                        }
2167                        if ($line eq "") {
2168                                if ($empty) {
2169                                        next;
2170                                }
2171                                $empty = 1;
2172                        } else {
2173                                $empty = 0;
2174                        }
2175                        print format_log_line_html($line) . "<br/>\n";
2176                }
2177                if (!$empty) {
2178                        print "<br/>\n";
2179                }
2180                print "</div>\n";
2181        }
2182        git_footer_html();
2183}
2184
2185sub git_commit {
2186        my %co = parse_commit($hash);
2187        if (!%co) {
2188                die_error(undef, "Unknown commit object");
2189        }
2190        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2191        my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
2192
2193        my $parent = $co{'parent'};
2194        if (!defined $parent) {
2195                $parent = "--root";
2196        }
2197        open my $fd, "-|", $GIT, "diff-tree", '-r', '-M', $parent, $hash
2198                or die_error(undef, "Open git-diff-tree failed");
2199        my @difftree = map { chomp; $_ } <$fd>;
2200        close $fd or die_error(undef, "Reading git-diff-tree failed");
2201
2202        # non-textual hash id's can be cached
2203        my $expires;
2204        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2205                $expires = "+1d";
2206        }
2207        my $refs = git_get_references();
2208        my $ref = format_ref_marker($refs, $co{'id'});
2209        my $formats_nav = '';
2210        if (defined $file_name && defined $co{'parent'}) {
2211                my $parent = $co{'parent'};
2212                $formats_nav .= $cgi->a({-href => href(action=>"blame", hash_parent=>$parent, file_name=>$file_name)}, "blame");
2213        }
2214        git_header_html(undef, $expires);
2215        git_print_page_nav('commit', defined $co{'parent'} ? '' : 'commitdiff',
2216                     $hash, $co{'tree'}, $hash,
2217                     $formats_nav);
2218
2219        if (defined $co{'parent'}) {
2220                git_print_header_div('commitdiff', esc_html($co{'title'}) . $ref, $hash);
2221        } else {
2222                git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
2223        }
2224        print "<div class=\"title_text\">\n" .
2225              "<table cellspacing=\"0\">\n";
2226        print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
2227              "<tr>" .
2228              "<td></td><td> $ad{'rfc2822'}";
2229        if ($ad{'hour_local'} < 6) {
2230                printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2231        } else {
2232                printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
2233        }
2234        print "</td>" .
2235              "</tr>\n";
2236        print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
2237        print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
2238        print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
2239        print "<tr>" .
2240              "<td>tree</td>" .
2241              "<td class=\"sha1\">" .
2242              $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash), class => "list"}, $co{'tree'}) .
2243              "</td>" .
2244              "<td class=\"link\">" . $cgi->a({-href => href(action=>"tree", hash=>$co{'tree'}, hash_base=>$hash)}, "tree") .
2245              "</td>" .
2246              "</tr>\n";
2247        my $parents = $co{'parents'};
2248        foreach my $par (@$parents) {
2249                print "<tr>" .
2250                      "<td>parent</td>" .
2251                      "<td class=\"sha1\">" . $cgi->a({-href => href(action=>"commit", hash=>$par), class => "list"}, $par) . "</td>" .
2252                      "<td class=\"link\">" .
2253                      $cgi->a({-href => href(action=>"commit", hash=>$par)}, "commit") .
2254                      " | " . $cgi->a({-href => href(action=>"commitdiff", hash=>$hash, hash_parent=>$par)}, "commitdiff") .
2255                      "</td>" .
2256                      "</tr>\n";
2257        }
2258        print "</table>".
2259              "</div>\n";
2260        print "<div class=\"page_body\">\n";
2261        my $comment = $co{'comment'};
2262        my $empty = 0;
2263        my $signed = 0;
2264        foreach my $line (@$comment) {
2265                # print only one empty line
2266                if ($line eq "") {
2267                        if ($empty || $signed) {
2268                                next;
2269                        }
2270                        $empty = 1;
2271                } else {
2272                        $empty = 0;
2273                }
2274                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2275                        $signed = 1;
2276                        print "<span class=\"signoff\">" . esc_html($line) . "</span><br/>\n";
2277                } else {
2278                        $signed = 0;
2279                        print format_log_line_html($line) . "<br/>\n";
2280                }
2281        }
2282        print "</div>\n";
2283
2284        git_difftree_body(\@difftree, $parent);
2285
2286        git_footer_html();
2287}
2288
2289sub git_blobdiff {
2290        mkdir($git_temp, 0700);
2291        git_header_html();
2292        if (defined $hash_base && (my %co = parse_commit($hash_base))) {
2293                my $formats_nav =
2294                        $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
2295                git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
2296                git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2297        } else {
2298                print "<div class=\"page_nav\">\n" .
2299                      "<br/><br/></div>\n" .
2300                      "<div class=\"title\">$hash vs $hash_parent</div>\n";
2301        }
2302        git_print_page_path($file_name, "blob");
2303        print "<div class=\"page_body\">\n" .
2304              "<div class=\"diff_info\">blob:" .
2305              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name")}, $hash_parent) .
2306              " -> blob:" .
2307              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name")}, $hash) .
2308              "</div>\n";
2309        git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
2310        print "</div>";
2311        git_footer_html();
2312}
2313
2314sub git_blobdiff_plain {
2315        mkdir($git_temp, 0700);
2316        print $cgi->header(-type => "text/plain", -charset => 'utf-8');
2317        git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
2318}
2319
2320sub git_commitdiff {
2321        mkdir($git_temp, 0700);
2322        my %co = parse_commit($hash);
2323        if (!%co) {
2324                die_error(undef, "Unknown commit object");
2325        }
2326        if (!defined $hash_parent) {
2327                $hash_parent = $co{'parent'} || '--root';
2328        }
2329        open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2330                or die_error(undef, "Open git-diff-tree failed");
2331        my @difftree = map { chomp; $_ } <$fd>;
2332        close $fd or die_error(undef, "Reading git-diff-tree failed");
2333
2334        # non-textual hash id's can be cached
2335        my $expires;
2336        if ($hash =~ m/^[0-9a-fA-F]{40}$/) {
2337                $expires = "+1d";
2338        }
2339        my $refs = git_get_references();
2340        my $ref = format_ref_marker($refs, $co{'id'});
2341        my $formats_nav =
2342                $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent")}, "plain");
2343        git_header_html(undef, $expires);
2344        git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
2345        git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
2346        print "<div class=\"page_body\">\n";
2347        my $comment = $co{'comment'};
2348        my $empty = 0;
2349        my $signed = 0;
2350        my @log = @$comment;
2351        # remove first and empty lines after that
2352        shift @log;
2353        while (defined $log[0] && $log[0] eq "") {
2354                shift @log;
2355        }
2356        foreach my $line (@log) {
2357                if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
2358                        next;
2359                }
2360                if ($line eq "") {
2361                        if ($empty) {
2362                                next;
2363                        }
2364                        $empty = 1;
2365                } else {
2366                        $empty = 0;
2367                }
2368                print format_log_line_html($line) . "<br/>\n";
2369        }
2370        print "<br/>\n";
2371        foreach my $line (@difftree) {
2372                # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
2373                # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
2374                if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2375                        next;
2376                }
2377                my $from_mode = $1;
2378                my $to_mode = $2;
2379                my $from_id = $3;
2380                my $to_id = $4;
2381                my $status = $5;
2382                my $file = validate_input(unquote($6));
2383                if ($status eq "A") {
2384                        print "<div class=\"diff_info\">" . file_type($to_mode) . ":" .
2385                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id) . "(new)" .
2386                              "</div>\n";
2387                        git_diff_print(undef, "/dev/null", $to_id, "b/$file");
2388                } elsif ($status eq "D") {
2389                        print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
2390                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash_parent;f=$file")}, $from_id) . "(deleted)" .
2391                              "</div>\n";
2392                        git_diff_print($from_id, "a/$file", undef, "/dev/null");
2393                } elsif ($status eq "M") {
2394                        if ($from_id ne $to_id) {
2395                                print "<div class=\"diff_info\">" .
2396                                      file_type($from_mode) . ":" .
2397                                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$from_id;hb=$hash_parent;f=$file")}, $from_id) .
2398                                      " -> " .
2399                                      file_type($to_mode) . ":" .
2400                                      $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$to_id;hb=$hash;f=$file")}, $to_id);
2401                                print "</div>\n";
2402                                git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
2403                        }
2404                }
2405        }
2406        print "<br/>\n" .
2407              "</div>";
2408        git_footer_html();
2409}
2410
2411sub git_commitdiff_plain {
2412        mkdir($git_temp, 0700);
2413        my %co = parse_commit($hash);
2414        if (!%co) {
2415                die_error(undef, "Unknown commit object");
2416        }
2417        if (!defined $hash_parent) {
2418                $hash_parent = $co{'parent'} || '--root';
2419        }
2420        open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash
2421                or die_error(undef, "Open git-diff-tree failed");
2422        my @difftree = map { chomp; $_ } <$fd>;
2423        close $fd or die_error(undef, "Reading diff-tree failed");
2424
2425        # try to figure out the next tag after this commit
2426        my $tagname;
2427        my $refs = git_get_references("tags");
2428        open $fd, "-|", $GIT, "rev-list", "HEAD";
2429        my @commits = map { chomp; $_ } <$fd>;
2430        close $fd;
2431        foreach my $commit (@commits) {
2432                if (defined $refs->{$commit}) {
2433                        $tagname = $refs->{$commit}
2434                }
2435                if ($commit eq $hash) {
2436                        last;
2437                }
2438        }
2439
2440        print $cgi->header(-type => "text/plain", -charset => 'utf-8', '-content-disposition' => "inline; filename=\"git-$hash.patch\"");
2441        my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
2442        my $comment = $co{'comment'};
2443        print "From: $co{'author'}\n" .
2444              "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
2445              "Subject: $co{'title'}\n";
2446        if (defined $tagname) {
2447                print "X-Git-Tag: $tagname\n";
2448        }
2449        print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
2450              "\n";
2451
2452        foreach my $line (@$comment) {;
2453                print "$line\n";
2454        }
2455        print "---\n\n";
2456
2457        foreach my $line (@difftree) {
2458                if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2459                        next;
2460                }
2461                my $from_id = $3;
2462                my $to_id = $4;
2463                my $status = $5;
2464                my $file = $6;
2465                if ($status eq "A") {
2466                        git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
2467                } elsif ($status eq "D") {
2468                        git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
2469                } elsif ($status eq "M") {
2470                        git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
2471                }
2472        }
2473}
2474
2475sub git_history {
2476        if (!defined $hash_base) {
2477                $hash_base = git_get_head_hash($project);
2478        }
2479        my $ftype;
2480        my %co = parse_commit($hash_base);
2481        if (!%co) {
2482                die_error(undef, "Unknown commit object");
2483        }
2484        my $refs = git_get_references();
2485        git_header_html();
2486        git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base);
2487        git_print_header_div('commit', esc_html($co{'title'}), $hash_base);
2488        if (!defined $hash && defined $file_name) {
2489                $hash = git_get_hash_by_path($hash_base, $file_name);
2490        }
2491        if (defined $hash) {
2492                $ftype = git_get_type($hash);
2493        }
2494        git_print_page_path($file_name, $ftype);
2495
2496        open my $fd, "-|",
2497                $GIT, "rev-list", "--full-history", $hash_base, "--", $file_name;
2498        git_history_body($fd, $refs, $hash_base, $ftype);
2499
2500        close $fd;
2501        git_footer_html();
2502}
2503
2504sub git_search {
2505        if (!defined $searchtext) {
2506                die_error(undef, "Text field empty");
2507        }
2508        if (!defined $hash) {
2509                $hash = git_get_head_hash($project);
2510        }
2511        my %co = parse_commit($hash);
2512        if (!%co) {
2513                die_error(undef, "Unknown commit object");
2514        }
2515        # pickaxe may take all resources of your box and run for several minutes
2516        # with every query - so decide by yourself how public you make this feature :)
2517        my $commit_search = 1;
2518        my $author_search = 0;
2519        my $committer_search = 0;
2520        my $pickaxe_search = 0;
2521        if ($searchtext =~ s/^author\\://i) {
2522                $author_search = 1;
2523        } elsif ($searchtext =~ s/^committer\\://i) {
2524                $committer_search = 1;
2525        } elsif ($searchtext =~ s/^pickaxe\\://i) {
2526                $commit_search = 0;
2527                $pickaxe_search = 1;
2528        }
2529        git_header_html();
2530        git_print_page_nav('','', $hash,$co{'tree'},$hash);
2531        git_print_header_div('commit', esc_html($co{'title'}), $hash);
2532
2533        print "<table cellspacing=\"0\">\n";
2534        my $alternate = 0;
2535        if ($commit_search) {
2536                $/ = "\0";
2537                open my $fd, "-|", $GIT, "rev-list", "--header", "--parents", $hash or next;
2538                while (my $commit_text = <$fd>) {
2539                        if (!grep m/$searchtext/i, $commit_text) {
2540                                next;
2541                        }
2542                        if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2543                                next;
2544                        }
2545                        if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2546                                next;
2547                        }
2548                        my @commit_lines = split "\n", $commit_text;
2549                        my %co = parse_commit(undef, \@commit_lines);
2550                        if (!%co) {
2551                                next;
2552                        }
2553                        if ($alternate) {
2554                                print "<tr class=\"dark\">\n";
2555                        } else {
2556                                print "<tr class=\"light\">\n";
2557                        }
2558                        $alternate ^= 1;
2559                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2560                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2561                              "<td>" .
2562                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" . esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2563                        my $comment = $co{'comment'};
2564                        foreach my $line (@$comment) {
2565                                if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2566                                        my $lead = esc_html($1) || "";
2567                                        $lead = chop_str($lead, 30, 10);
2568                                        my $match = esc_html($2) || "";
2569                                        my $trail = esc_html($3) || "";
2570                                        $trail = chop_str($trail, 30, 10);
2571                                        my $text = "$lead<span class=\"match\">$match</span>$trail";
2572                                        print chop_str($text, 80, 5) . "<br/>\n";
2573                                }
2574                        }
2575                        print "</td>\n" .
2576                              "<td class=\"link\">" .
2577                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2578                              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2579                        print "</td>\n" .
2580                              "</tr>\n";
2581                }
2582                close $fd;
2583        }
2584
2585        if ($pickaxe_search) {
2586                $/ = "\n";
2587                open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
2588                undef %co;
2589                my @files;
2590                while (my $line = <$fd>) {
2591                        if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2592                                my %set;
2593                                $set{'file'} = $6;
2594                                $set{'from_id'} = $3;
2595                                $set{'to_id'} = $4;
2596                                $set{'id'} = $set{'to_id'};
2597                                if ($set{'id'} =~ m/0{40}/) {
2598                                        $set{'id'} = $set{'from_id'};
2599                                }
2600                                if ($set{'id'} =~ m/0{40}/) {
2601                                        next;
2602                                }
2603                                push @files, \%set;
2604                        } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2605                                if (%co) {
2606                                        if ($alternate) {
2607                                                print "<tr class=\"dark\">\n";
2608                                        } else {
2609                                                print "<tr class=\"light\">\n";
2610                                        }
2611                                        $alternate ^= 1;
2612                                        print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2613                                              "<td><i>" . esc_html(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2614                                              "<td>" .
2615                                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}"), -class => "list"}, "<b>" .
2616                                              esc_html(chop_str($co{'title'}, 50)) . "</b><br/>");
2617                                        while (my $setref = shift @files) {
2618                                                my %set = %$setref;
2619                                                print $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=blob;h=$set{'id'};hb=$co{'id'};f=$set{'file'}"), class => "list"},
2620                                                      "<span class=\"match\">" . esc_html($set{'file'}) . "</span>") .
2621                                                      "<br/>\n";
2622                                        }
2623                                        print "</td>\n" .
2624                                              "<td class=\"link\">" .
2625                                              $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=commit;h=$co{'id'}")}, "commit") .
2626                                              " | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}")}, "tree");
2627                                        print "</td>\n" .
2628                                              "</tr>\n";
2629                                }
2630                                %co = parse_commit($1);
2631                        }
2632                }
2633                close $fd;
2634        }
2635        print "</table>\n";
2636        git_footer_html();
2637}
2638
2639sub git_shortlog {
2640        my $head = git_get_head_hash($project);
2641        if (!defined $hash) {
2642                $hash = $head;
2643        }
2644        if (!defined $page) {
2645                $page = 0;
2646        }
2647        my $refs = git_get_references();
2648
2649        my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2650        open my $fd, "-|", $GIT, "rev-list", $limit, $hash
2651                or die_error(undef, "Open git-rev-list failed");
2652        my @revlist = map { chomp; $_ } <$fd>;
2653        close $fd;
2654
2655        my $paging_nav = format_paging_nav('shortlog', $hash, $head, $page, $#revlist);
2656        my $next_link = '';
2657        if ($#revlist >= (100 * ($page+1)-1)) {
2658                $next_link =
2659                        $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=shortlog;h=$hash;pg=" . ($page+1)),
2660                                 -title => "Alt-n"}, "next");
2661        }
2662
2663
2664        git_header_html();
2665        git_print_page_nav('shortlog','', $hash,$hash,$hash, $paging_nav);
2666        git_print_header_div('summary', $project);
2667
2668        git_shortlog_body(\@revlist, ($page * 100), $#revlist, $refs, $next_link);
2669
2670        git_footer_html();
2671}
2672
2673## ......................................................................
2674## feeds (RSS, OPML)
2675
2676sub git_rss {
2677        # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
2678        open my $fd, "-|", $GIT, "rev-list", "--max-count=150", git_get_head_hash($project)
2679                or die_error(undef, "Open git-rev-list failed");
2680        my @revlist = map { chomp; $_ } <$fd>;
2681        close $fd or die_error(undef, "Reading git-rev-list failed");
2682        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
2683        print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
2684              "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
2685        print "<channel>\n";
2686        print "<title>$project</title>\n".
2687              "<link>" . esc_html("$my_url?p=$project;a=summary") . "</link>\n".
2688              "<description>$project log</description>\n".
2689              "<language>en</language>\n";
2690
2691        for (my $i = 0; $i <= $#revlist; $i++) {
2692                my $commit = $revlist[$i];
2693                my %co = parse_commit($commit);
2694                # we read 150, we always show 30 and the ones more recent than 48 hours
2695                if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
2696                        last;
2697                }
2698                my %cd = parse_date($co{'committer_epoch'});
2699                open $fd, "-|", $GIT, "diff-tree", '-r', $co{'parent'}, $co{'id'} or next;
2700                my @difftree = map { chomp; $_ } <$fd>;
2701                close $fd or next;
2702                print "<item>\n" .
2703                      "<title>" .
2704                      sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . esc_html($co{'title'}) .
2705                      "</title>\n" .
2706                      "<author>" . esc_html($co{'author'}) . "</author>\n" .
2707                      "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
2708                      "<guid isPermaLink=\"true\">" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
2709                      "<link>" . esc_html("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
2710                      "<description>" . esc_html($co{'title'}) . "</description>\n" .
2711                      "<content:encoded>" .
2712                      "<![CDATA[\n";
2713                my $comment = $co{'comment'};
2714                foreach my $line (@$comment) {
2715                        $line = decode("utf8", $line, Encode::FB_DEFAULT);
2716                        print "$line<br/>\n";
2717                }
2718                print "<br/>\n";
2719                foreach my $line (@difftree) {
2720                        if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
2721                                next;
2722                        }
2723                        my $file = validate_input(unquote($7));
2724                        $file = decode("utf8", $file, Encode::FB_DEFAULT);
2725                        print "$file<br/>\n";
2726                }
2727                print "]]>\n" .
2728                      "</content:encoded>\n" .
2729                      "</item>\n";
2730        }
2731        print "</channel></rss>";
2732}
2733
2734sub git_opml {
2735        my @list = git_get_projects_list();
2736
2737        print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
2738        print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
2739              "<opml version=\"1.0\">\n".
2740              "<head>".
2741              "  <title>$site_name Git OPML Export</title>\n".
2742              "</head>\n".
2743              "<body>\n".
2744              "<outline text=\"git RSS feeds\">\n";
2745
2746        foreach my $pr (@list) {
2747                my %proj = %$pr;
2748                my $head = git_get_head_hash($proj{'path'});
2749                if (!defined $head) {
2750                        next;
2751                }
2752                $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
2753                my %co = parse_commit($head);
2754                if (!%co) {
2755                        next;
2756                }
2757
2758                my $path = esc_html(chop_str($proj{'path'}, 25, 5));
2759                my $rss  = "$my_url?p=$proj{'path'};a=rss";
2760                my $html = "$my_url?p=$proj{'path'};a=summary";
2761                print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
2762        }
2763        print "</outline>\n".
2764              "</body>\n".
2765              "</opml>\n";
2766}