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Annotation of cvsweb/cvsweb.cgi, Revision 3.292

3.204     scop        1: #!/usr/bin/perl -T
1.1       jfieber     2: #
3.1       knu         3: # cvsweb - a CGI interface to CVS trees.
1.1       jfieber     4: #
3.12      knu         5: # Written in their spare time by
3.113     scop        6: #             Bill Fenner          <fenner@FreeBSD.org>   (original work)
                      7: # extended by Henner Zeller        <zeller@think.de>,
                      8: #             Henrik Nordstrom     <hno@hem.passagen.se>
                      9: #             Ken Coar             <coar@Apache.Org>
                     10: #             Dick Balaska         <dick@buckosoft.com>
                     11: #             Akinori MUSHA        <knu@FreeBSD.org>
                     12: #             Jens-Uwe Mager       <jum@helios.de>
                     13: #             Ville Skyttä         <scop@FreeBSD.org>
                     14: #             Vassilii Khachaturov <vassilii@tarunz.org>
3.1       knu        15: #
                     16: # Based on:
                     17: # * Bill Fenners cvsweb.cgi revision 1.28 available from:
3.5       knu        18: #   http://www.FreeBSD.org/cgi/cvsweb.cgi/www/en/cgi/cvsweb.cgi
1.1       jfieber    19: #
1.21      wosch      20: # Copyright (c) 1996-1998 Bill Fenner
3.1       knu        21: #           (c) 1998-1999 Henner Zeller
3.109     scop       22: #           (c) 1999      Henrik Nordstrom
                     23: #           (c) 2000-2002 Akinori MUSHA
3.289     scop       24: #           (c) 2002-2005 Ville Skyttä
1.21      wosch      25: # All rights reserved.
                     26: #
                     27: # Redistribution and use in source and binary forms, with or without
                     28: # modification, are permitted provided that the following conditions
                     29: # are met:
                     30: # 1. Redistributions of source code must retain the above copyright
                     31: #    notice, this list of conditions and the following disclaimer.
                     32: # 2. Redistributions in binary form must reproduce the above copyright
                     33: #    notice, this list of conditions and the following disclaimer in the
                     34: #    documentation and/or other materials provided with the distribution.
                     35: #
                     36: # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
                     37: # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     38: # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     39: # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
                     40: # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     41: # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     42: # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     43: # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     44: # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     45: # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     46: # SUCH DAMAGE.
                     47: #
3.87      knu        48: # $FreeBSD$
3.82      knu        49: # $Id: cvsweb.cgi,v 1.112 2001/07/24 13:03:16 hzeller Exp $
3.85      knu        50: # $Idaemons: /home/cvs/cvsweb/cvsweb.cgi,v 3.84 2001/10/07 20:50:10 knu Exp $
1.21      wosch      51: #
3.1       knu        52: ###
                     53:
3.204     scop       54: require 5.006;
3.55      knu        55:
3.1       knu        56: use strict;
1.21      wosch      57:
3.204     scop       58: use warnings;
                     59: use filetest qw(access);
                     60:
3.1       knu        61: use vars qw (
3.273     scop       62:   $VERSION $CheckoutMagic $MimeTypes $DEBUG
3.144     scop       63:   $config $allow_version_select
3.120     scop       64:   @CVSrepositories @CVSROOT %CVSROOT %CVSROOTdescr
                     65:   %MIRRORS %DEFAULTVALUE %ICONS %MTYPES
3.225     scop       66:   %DIFF_COMMANDS @DIFFTYPES %DIFFTYPES @LOGSORTKEYS %LOGSORTKEYS
3.129     scop       67:   %alltags %fileinfo %tags @branchnames %nameprinted
3.120     scop       68:   %symrev %revsym @allrevisions %date %author @revdisplayorder
3.152     scop       69:   @revisions %state %difflines %log %branchpoint @revorder $keywordsubstitution
3.120     scop       70:   $prcgi @prcategories $re_prcategories $prkeyword $re_prkeyword $mancgi
3.222     scop       71:   $doCheckout $scriptname $scriptwhere
3.264     scop       72:   $where $Browser $nofilelinks $maycompress @stickyvars %funcline_regexp
3.120     scop       73:   $is_links $is_lynx $is_w3m $is_msie $is_mozilla3 $is_textbased
                     74:   %input $query $barequery $sortby $bydate $byrev $byauthor
                     75:   $bylog $byfile $defaultDiffType $logsort $cvstree $cvsroot
3.230     scop       76:   $charset $output_filter
                     77:   @command_path %CMD $allow_compress $backicon $diricon $fileicon $graphicon
3.264     scop       78:   $fullname $cvstreedefault $logo $defaulttitle $address $binfileicon
3.131     scop       79:   $long_intro $short_instruction $shortLogLen $show_author
3.129     scop       80:   $tablepadding $hr_breakable $showfunc $hr_ignwhite $hr_ignkeysubst
3.290     scop       81:   $inputTextSize $mime_types $allow_annotate $allow_markup $allow_mailtos
3.120     scop       82:   $allow_log_extra $allow_dir_extra $allow_source_extra
3.218     scop       83:   $allow_cvsgraph $cvsgraph_config $use_java_script $edit_option_form
3.144     scop       84:   $show_subdir_lastmod $show_log_in_markup $preformat_in_markup
3.233     scop       85:   $tabstop $state $annTable $sel @ForbiddenFiles
                     86:   $use_descriptions %descriptions @mytz $dwhere
3.222     scop       87:   $use_moddate $gzip_open $file_list_len
3.120     scop       88:   $allow_tar @tar_options @gzip_options @zip_options @cvs_options
3.222     scop       89:   @annotate_options @rcsdiff_options
3.257     scop       90:   $HTML_DOCTYPE $HTML_META $cssurl $CSS $cvshistory_url
3.222     scop       91:   $allow_enscript @enscript_options %enscript_types
3.1       knu        92: );
                     93:
3.285     scop       94: use Cwd                   qw(abs_path);
3.172     scop       95: use File::Basename        qw(dirname);
3.171     scop       96: use File::Path            qw(rmtree);
3.232     scop       97: use File::Spec::Functions qw(canonpath catdir catfile curdir devnull rootdir
                     98:                              tmpdir updir);
3.225     scop       99: use File::Temp            qw(tempdir tempfile);
3.229     scop      100: use IPC::Run              qw();
3.172     scop      101: use Time::Local           qw(timegm);
3.206     scop      102: use URI::Escape           qw(uri_escape uri_unescape);
3.122     scop      103:
3.222     scop      104: use constant VALID_PATH   => qr/^([[:^cntrl:]]+)$/o;
                    105: use constant VALID_TAG1   => qr/^([a-zA-Z][[:graph:]]*)$/o;
                    106: use constant VALID_TAG2   => qr/^([^\$,.:;@]+)$/o;
3.261     scop      107: use constant CVSWEBMARKUP => qr{^text/(x-cvsweb|vnd\.viewcvs)-markup$}io;
3.222     scop      108: use constant LOG_FILESEPR => qr/^={77}$/o;
                    109: use constant LOG_REVSEPR  => qr/^-{28}$/o;
                    110:
                    111: use constant HAS_ZLIB     => eval { require Compress::Zlib; };
                    112: use constant HAS_EDIFF    => eval { require String::Ediff;  };
3.194     scop      113:
3.122     scop      114: # -----------------------------------------------------------------------------
                    115:
                    116: # All global initialization that can be done in compile time should go to
                    117: # the BEGIN block.  Persistent environments, such as mod_perl, will benefit
                    118: # from this.
                    119:
                    120: BEGIN
                    121: {
3.291     scop      122:   $VERSION = '3.0.5';
3.122     scop      123:
                    124:   $HTML_DOCTYPE =
3.208     scop      125:     '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ' .
                    126:     '"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">';
3.122     scop      127:
                    128:   $HTML_META = <<EOM;
3.208     scop      129: <meta name="robots" content="nofollow" />
                    130: <meta name="generator" content="FreeBSD-CVSweb $VERSION" />
                    131: <meta http-equiv="Content-Script-Type" content="text/javascript" />
                    132: <meta http-equiv="Content-Style-Type" content="text/css" />
3.122     scop      133: EOM
                    134:
3.156     scop      135:   # Use MIME::Types for MIME type lookups if it's available.
                    136:   eval {
                    137:     require MIME::Types;
3.223     scop      138:     $MimeTypes = MIME::Types->new(only_complete => 1);
3.156     scop      139:   };
                    140:   $MimeTypes = undef if $@;
                    141:
3.222     scop      142:   $CheckoutMagic = '~checkout~';
3.122     scop      143: }
                    144:
                    145: # -----------------------------------------------------------------------------
                    146:
3.12      knu       147: sub printDiffSelect($);
3.168     scop      148: sub printDiffSelectStickyVars();
3.225     scop      149: sub getDiffLinks($$$);
3.37      knu       150: sub printLogSortSelect($);
3.12      knu       151: sub findLastModifiedSubdirs(@);
3.36      knu       152: sub htmlify_sub(&$);
3.12      knu       153: sub htmlify($;$);
3.20      knu       154: sub spacedHtmlText($;$);
3.12      knu       155: sub link($$);
                    156: sub revcmp($$);
3.103     knu       157: sub fatal($$@);
3.287     scop      158: sub config_error($$);
3.269     scop      159: sub redirect($;$);
3.12      knu       160: sub safeglob($);
3.58      knu       161: sub search_path($);
3.219     scop      162: sub getEnscriptHL($);
3.156     scop      163: sub getMimeType($;$);
3.24      knu       164: sub head($;$);
                    165: sub scan_directives(@);
3.86      knu       166: sub openOutputFilter();
3.275     scop      167: sub doAnnotate($$);
                    168: sub doCheckout($$$);
3.240     scop      169: sub doEnscript($$$;$);
3.170     scop      170: sub doGraph();
                    171: sub doGraphView();
3.219     scop      172: sub cvswebMarkup($$$$$$;$);
3.12      knu       173: sub viewable($);
                    174: sub doDiff($$$$$$);
                    175: sub getDirLogs($$@);
                    176: sub readLog($;$);
3.219     scop      177: sub printLog($$$;$$);
3.12      knu       178: sub doLog($);
                    179: sub flush_diff_rows($$$$);
3.144     scop      180: sub human_readable_diff($$);
3.163     scop      181: sub navigateHeader($$$$$;$);
3.12      knu       182: sub plural_write($$);
                    183: sub readableTime($$);
                    184: sub clickablePath($$);
                    185: sub chooseCVSRoot();
                    186: sub chooseMirror();
                    187: sub fileSortCmp();
                    188: sub download_url($$;$);
                    189: sub download_link($$$;$);
3.219     scop      190: sub display_url($$;$);
                    191: sub display_link($$;$$);
3.170     scop      192: sub graph_link($;$);
3.258     scop      193: sub history_link($$;$);
3.140     scop      194: sub toggleQuery($;$);
3.35      knu       195: sub htmlquote($);
3.36      knu       196: sub htmlunquote($);
3.271     scop      197: sub uri_escape_path($);
3.163     scop      198: sub http_header(;$$);
                    199: sub html_header($;$);
3.12      knu       200: sub html_footer();
                    201: sub link_tags($);
3.233     scop      202: sub forbidden($);
3.191     scop      203: sub startproc(@);
3.215     scop      204: sub runproc(@);
3.225     scop      205: sub checkout_to_temp($$$);
3.12      knu       206:
3.284     scop      207: # Get rid of unsafe environment vars.  Don't do this in the BEGIN block
                    208: # (think mod_perl)...
3.142     scop      209: delete(@ENV{qw(PATH IFS CDPATH ENV BASH_ENV)});
3.59      knu       210:
3.172     scop      211: my ($mydir) = (dirname($0) =~ /(.*)/);    # untaint
3.58      knu       212:
3.284     scop      213: ##### Start of Configuration Area ########
                    214:
3.12      knu       215: # == EDIT this ==
3.28      knu       216: # Locations to search for user configuration, in order:
3.165     scop      217: for (catfile($mydir, 'cvsweb.conf'), '/usr/local/etc/cvsweb/cvsweb.conf') {
                    218:   if (-r $_) {
3.120     scop      219:     $config = $_;
                    220:     last;
                    221:   }
3.11      knu       222: }
3.1       knu       223:
3.284     scop      224: ##### End of Configuration Area   ########
3.1       knu       225:
3.284     scop      226: undef $mydir;
3.1       knu       227:
3.284     scop      228: ######## Configuration parameters #########
3.120     scop      229:
3.80      knu       230: @CVSrepositories = @CVSROOT = %CVSROOT = %MIRRORS = %DEFAULTVALUE = %ICONS =
3.225     scop      231:   %MTYPES = %tags = %alltags = %fileinfo = %DIFF_COMMANDS = ();
3.120     scop      232:
3.129     scop      233: $cvstreedefault = $logo = $defaulttitle =
3.120     scop      234:   $address = $long_intro = $short_instruction = $shortLogLen = $show_author =
3.131     scop      235:   $tablepadding = $hr_breakable = $showfunc = $hr_ignwhite =
3.129     scop      236:   $hr_ignkeysubst = $inputTextSize = $mime_types = $allow_annotate =
3.284     scop      237:   $allow_markup = $allow_compress = $use_java_script = $edit_option_form =
                    238:   $show_subdir_lastmod = $show_log_in_markup = $preformat_in_markup =
                    239:   $tabstop = $use_moddate = $gzip_open = $DEBUG = $allow_cvsgraph =
                    240:   $cvsgraph_config = $cvshistory_url = $allow_tar = undef;
                    241:
3.290     scop      242: $allow_version_select = $allow_mailtos = $allow_log_extra = 1;
3.32      knu       243:
3.37      knu       244: @DIFFTYPES = qw(h H u c s);
                    245: @DIFFTYPES{@DIFFTYPES} = (
3.120     scop      246:   {
                    247:     'descr'   => 'colored',
                    248:     'opts'    => ['-u'],
                    249:     'colored' => 1,
                    250:   },
                    251:   {
                    252:     'descr'   => 'long colored',
                    253:     'opts'    => ['--unified=15'],
                    254:     'colored' => 1,
                    255:   },
                    256:   {
                    257:     'descr'   => 'unified',
                    258:     'opts'    => ['-u'],
                    259:     'colored' => 0,
                    260:   },
                    261:   {
                    262:     'descr'   => 'context',
                    263:     'opts'    => ['-c'],
                    264:     'colored' => 0,
                    265:   },
                    266:   {
                    267:     'descr'   => 'side by side',
3.236     scop      268:     # width=168 should be enough to support 80 character line lengths
                    269:     'opts'    => ['--side-by-side', '--width=168'],
3.120     scop      270:     'colored' => 0,
                    271:   },
3.80      knu       272: );
3.37      knu       273:
                    274: @LOGSORTKEYS = qw(cvs date rev);
                    275: @LOGSORTKEYS{@LOGSORTKEYS} = (
3.254     scop      276:   { descr => 'Not sorted',  },
                    277:   { descr => 'Commit date', },
                    278:   { descr => 'Revision',    },
3.80      knu       279: );
3.37      knu       280:
3.284     scop      281: ##### End of configuration parameters #####
3.1       knu       282:
3.264     scop      283: my $pathinfo = '';
                    284: if (defined($ENV{PATH_INFO}) && $ENV{PATH_INFO} ne '') {
3.194     scop      285:   ($pathinfo) = ($ENV{PATH_INFO} =~ VALID_PATH)
                    286:     or fatal('500 Internal Error',
                    287:              'Illegal PATH_INFO in environment: <code>%s</code>',
                    288:              $ENV{PATH_INFO});
                    289: }
                    290: if ($ENV{SCRIPT_NAME}) {
                    291:   ($scriptname) = ($ENV{SCRIPT_NAME} =~ VALID_PATH)
                    292:     or fatal('500 Internal Error',
                    293:              'Illegal SCRIPT_NAME in environment: <code>%s</code>',
                    294:              $ENV{SCRIPT_NAME});
                    295: }
                    296:
                    297: $scriptname    = '' unless defined($scriptname);
                    298:
3.120     scop      299: $where         =  $pathinfo;
3.268     scop      300: $doCheckout    =  $where =~ s|^/$CheckoutMagic/|/|o;
3.120     scop      301: $where         =~ s|^/||;
                    302: $scriptname    =~ s|^/*|/|;
3.63      knu       303:
3.64      knu       304: # Let's workaround thttpd's stupidity..
3.63      knu       305: if ($scriptname =~ m|/$|) {
3.120     scop      306:   $pathinfo .= '/';
                    307:   my $re = quotemeta $pathinfo;
                    308:   $scriptname =~ s/$re$//;
3.63      knu       309: }
                    310:
3.271     scop      311: # $scriptname : the URI escaped path to this script
                    312: # $where      : the path in the CVS repository (without leading /, or only /)
                    313: # $scriptwhere: the URI escaped $scriptname + '/' + $where
                    314: $scriptname   = uri_escape_path($scriptname);
                    315: $scriptwhere  = join('/', $scriptname, uri_escape_path($where));
3.268     scop      316: $where        = '/' if ($where eq '');
3.3       knu       317:
3.188     scop      318: # In text-based browsers, it's very annoying to have two links per file;
                    319: # skip linking the image for them.
                    320:
3.120     scop      321: $Browser     = $ENV{HTTP_USER_AGENT} || '';
3.187     scop      322: $is_links    = ($Browser =~ m`^E?Links `);
3.80      knu       323: $is_lynx     = ($Browser =~ m`^Lynx/`i);
                    324: $is_w3m      = ($Browser =~ m`^w3m/`i);
                    325: $is_msie     = ($Browser =~ m`MSIE`);
3.5       knu       326: $is_mozilla3 = ($Browser =~ m`^Mozilla/[3-9]`);
3.3       knu       327:
3.34      knu       328: $is_textbased = ($is_links || $is_lynx || $is_w3m);
3.5       knu       329:
                    330: $nofilelinks = $is_textbased;
3.1       knu       331:
                    332: # newer browsers accept gzip content encoding
                    333: # and state this in a header
                    334: # (netscape did always but didn't state it)
                    335: # It has been reported that these
                    336: #  braindamaged MS-Internet Exploders claim that they
                    337: # accept gzip .. but don't in fact and
                    338: # display garbage then :-/
3.23      knu       339: # Turn off gzip if running under mod_perl and no zlib is available,
                    340: # piping does not work as expected inside the server.
3.120     scop      341: $maycompress = (
                    342:   ((defined($ENV{HTTP_ACCEPT_ENCODING})
                    343:     && $ENV{HTTP_ACCEPT_ENCODING} =~ /gzip/)
                    344:    || $is_mozilla3)
                    345:   && !$is_msie
3.222     scop      346:   && !(defined($ENV{MOD_PERL}) && !HAS_ZLIB)
3.120     scop      347: );
3.1       knu       348:
3.284     scop      349: # Parameters that will be sticky in all constructed links/query strings.
3.194     scop      350: @stickyvars =
3.282     scop      351:   qw(cvsroot hideattic ignorecase sortby logsort f only_with_tag ln
                    352:      hidecvsroot hidenonreadable);
1.1       jfieber   353:
3.227     scop      354: #
                    355: # Load configuration.
                    356: #
3.1       knu       357: if (-f $config) {
3.287     scop      358:   do "$config" or config_error($config, $@);
3.27      knu       359: } else {
3.120     scop      360:   fatal("500 Internal Error",
3.284     scop      361:         'Configuration not found.  Set the parameter <code>$config</code> in cvsweb.cgi to your <b>cvsweb.conf</b> configuration file first.');
3.1       knu       362: }
                    363:
3.183     scop      364: # Try to find a readable dir where we can cd into.  Some abs_path()
                    365: # implementations as well as various cvs operations require such a dir to
                    366: # work properly.
                    367: {
                    368:   local $^W = 0;
3.285     scop      369:   for my $dir (tmpdir(), rootdir()) {
                    370:     last if (-r $dir && chdir($dir));
3.183     scop      371:   }
                    372: }
                    373:
3.144     scop      374: $CSS = $cssurl ?
3.208     scop      375:   sprintf("<link rel=\"stylesheet\" type=\"text/css\" href=\"%s\" />\n",
3.144     scop      376:           htmlquote($cssurl)) : '';
                    377:
3.194     scop      378: # --- input parameters
                    379:
3.202     scop      380: my %query = ();
                    381: if (defined($ENV{QUERY_STRING})) {
                    382:   for my $p (split(/[;&]+/, $ENV{QUERY_STRING})) {
                    383:     next unless $p;
                    384:     $p =~ y/+/ /;
                    385:     my ($key, $val) = split(/=/, $p, 2);
                    386:     next unless defined($key);
                    387:     $val = 1 unless defined($val);
3.222     scop      388:     ($key = uri_unescape($key)) =~ /[[:graph:]]/ or next;
                    389:     ($val = uri_unescape($val)) =~ /[[:graph:]]/ or next;
3.202     scop      390:     $query{$key} = $val;
                    391:   }
                    392: }
                    393:
3.1       knu       394: undef %input;
1.10      wosch     395:
3.194     scop      396: my $t;
                    397: for my $p (qw(graph hideattic hidecvsroot hidenonreadable ignorecase ln copt
                    398:               makeimage options tarball)) {
3.202     scop      399:   $t = $query{$p};
                    400:   if (defined($t)) {
3.222     scop      401:     ($input{$p}) = ($t =~ /^([01]|on)$/)
3.194     scop      402:       or fatal('500 Internal Error',
                    403:                'Invalid boolean value: <code>%s=%s</code>', $p, $t);
                    404:   }
                    405: }
                    406: for my $p (qw(annotate r1 r2 rev tr1 tr2)) {
3.202     scop      407:   $t = $query{$p};
                    408:   if (defined($t)) {
3.207     scop      409:     if (($p eq 'r1' || $p eq 'r2') && $t eq 'text') {
                    410:       # Special case for the "Use text field" option in the log view diff form.
                    411:       $input{$p} = $t;
                    412:       next;
3.275     scop      413:     } elsif (($p eq 'rev' || $p eq 'annotate') && ($t eq '.' || $t eq 'HEAD')){
3.253     scop      414:       # Another special case, allow linking to latest revision using these.
                    415:       $input{$p} = '.';
                    416:       next;
3.207     scop      417:     }
3.194     scop      418:     my ($rev, $tag) = split(/:/, $t, 2);
3.251     scop      419:     ($input{$p}) = ($rev =~ /^(\d+(?:\.\d+)*)$/)
3.194     scop      420:       or fatal('500 Internal Error',
                    421:                'Invalid revision: <code>%s=%s</code>', $p, $t);
                    422:     if (defined($tag)) {
                    423:       ($tag) = ($tag =~ VALID_TAG1)
                    424:         or fatal('500 Internal Error',
3.254     scop      425:                  'Invalid tag/branch name in revision: <code>%s=%s</code>',
                    426:                  $p, $t);
3.194     scop      427:       ($tag) = ($tag =~ VALID_TAG2)
                    428:         or fatal('500 Internal Error',
3.254     scop      429:                  'Invalid tag/branch name in revision: <code>%s=%s</code>',
                    430:                  $p, $t);
3.207     scop      431:       $input{$p} .= ':' . $tag;
3.194     scop      432:     }
                    433:   }
                    434: }
3.202     scop      435: $t = defined($query{only_with_tag}) ?
                    436:   $query{only_with_tag} : $query{only_on_branch}; # Backwards compatibility.
                    437: if (defined($t)) {
3.211     scop      438:   ($input{only_with_tag}) = ($t =~ VALID_TAG1)
3.194     scop      439:     or fatal('500 Internal Error',
                    440:              'Invalid tag/branch name: <code>%s</code>', $t);
3.211     scop      441:   ($input{only_with_tag}) = ($t =~ VALID_TAG2)
3.194     scop      442:     or fatal('500 Internal Error',
                    443:              'Invalid tag/branch name: <code>%s</code>', $t);
                    444: }
3.202     scop      445: $t = $query{logsort};
                    446: if (defined($t)) {
3.222     scop      447:   ($input{logsort}) = ($t =~ /^(cvs|date|rev)$/)
3.194     scop      448:     or fatal('500 Internal Error',
                    449:              'Unsupported log sort key: <code>%s</code>', $t);
                    450: }
3.202     scop      451: $t = $query{f};
                    452: if (defined($t)) {
3.225     scop      453:   ($input{f}) = ($t =~ /^(([hH]|[ucs]c?)|ext\d*)$/)
3.194     scop      454:     or fatal('500 Internal Error',
                    455:              'Unsupported diff format: <code>%s</code>', $t);
                    456: }
3.202     scop      457: $t = $query{sortby};
                    458: if (defined($t)) {
3.222     scop      459:   ($input{sortby}) = ($t =~ /^(file|date|rev|author|log)$/)
3.194     scop      460:     or fatal('500 Internal Error',
                    461:              'Unsupported dir sort key: <code>%s</code>', $t);
                    462: }
3.202     scop      463: $t = $query{'content-type'};
                    464: if (defined($t)) {
3.261     scop      465:   ($input{'content-type'}) = ($t =~ m|^([-0-9A-Za-z]+/[-0-9A-Za-z\.]+)$|)
3.194     scop      466:     or fatal('500 Internal Error',
                    467:              'Unsupported content type: <code>%s</code>', $t);
                    468: }
3.202     scop      469: $t = $query{cvsroot};
                    470: if (defined($t)) {
3.222     scop      471:   ($input{cvsroot}) = ($t =~ /^([[:print:]]+)$/)
3.194     scop      472:     or fatal('500 Internal Error',
                    473:              'Invalid symbolic CVS root name: <code>%s</code>', $t);
                    474: }
3.202     scop      475: $t = $query{path};
                    476: if (defined($t)) {
3.194     scop      477:   ($input{path}) = ($t =~ VALID_PATH)
                    478:     or fatal('500 Internal Error',
                    479:              'Invalid path: <code>%s</code>', $t);
3.97      knu       480: }
3.194     scop      481: undef($t);
3.205     scop      482: undef(%query);
3.97      knu       483:
3.194     scop      484: # --- end input parameters
1.10      wosch     485:
3.158     scop      486: #
                    487: # CVS roots
                    488: #
                    489: my $rootfound = 0;
                    490: for (my $i = 0; $i < scalar(@CVSrepositories); $i += 2) {
                    491:   my $key = $CVSrepositories[$i];
3.232     scop      492:   my ($descr, $root) = @{$CVSrepositories[$i+1]};
                    493:   $root = canonpath($root);
                    494:   unless (-d $root) {
                    495:     warn("Root '$root' defined in \@CVSrepositories is not a directory, " .
3.158     scop      496:          'entry ignored');
                    497:     next;
                    498:   }
                    499:   $rootfound ||= 1;
                    500:   $cvstreedefault = $key unless defined($cvstreedefault);
                    501:   $CVSROOTdescr{$key} = $descr;
3.232     scop      502:   $CVSROOT{$key} = $root;
3.158     scop      503:   push(@CVSROOT, $key);
                    504: }
                    505: unless ($rootfound) {
                    506:   fatal('500 Internal Error',
                    507:         'No valid CVS roots found!  See <code>@CVSrepositories</code> in ' .
3.221     scop      508:         'the configuration file (<code>%s</code>).',
3.158     scop      509:         $config);
                    510: }
                    511: undef $rootfound;
                    512:
                    513: #
                    514: # Default CVS root
                    515: #
                    516: if (!defined($CVSROOT{$cvstreedefault})) {
                    517:   fatal("500 Internal Error",
                    518:         '<code>$cvstreedefault</code> points to a repository (%s) not ' .
                    519:         'defined in <code>@CVSrepositories</code> in your configuration ' .
                    520:         'file (<code>%s</code>).',
                    521:         $cvstreedefault,
                    522:         $config);
                    523: }
                    524:
3.254     scop      525: $DEFAULTVALUE{cvsroot} = $cvstreedefault;
1.10      wosch     526:
3.120     scop      527: while (my ($key, $defval) = each %DEFAULTVALUE) {
3.80      knu       528:
3.120     scop      529:   # Replace not given parameters with defaults.
3.194     scop      530:   next unless (defined($defval) && $defval =~ /\S/ && !defined($input{$key}));
3.120     scop      531:
3.284     scop      532:   # Empty checkboxes in forms return nothing, so we define a helper parameter
3.120     scop      533:   # in these forms (copt) which indicates that we just set parameters with a
                    534:   # checkbox.
3.194     scop      535:   if ($input{copt}) {
3.120     scop      536:
3.194     scop      537:     # 'copt' is set -> the result of empty input checkbox
3.120     scop      538:     # -> set to zero (disable) if default is a boolean (0|1).
                    539:     $input{$key} = 0 if ($defval eq '0' || $defval eq '1');
                    540:
                    541:   } else {
                    542:
3.194     scop      543:     # 'copt' isn't set --> empty input is not the result
3.120     scop      544:     # of empty input checkbox --> set default.
                    545:     $input{$key} = $defval;
                    546:   }
1.10      wosch     547: }
3.12      knu       548:
3.1       knu       549: $barequery = "";
3.31      knu       550: my @barequery;
3.1       knu       551: foreach (@stickyvars) {
3.80      knu       552:
3.120     scop      553:   # construct a query string with the sticky non default parameters set
                    554:   if (defined($input{$_})
                    555:       && !(defined($DEFAULTVALUE{$_}) && $input{$_} eq $DEFAULTVALUE{$_}))
                    556:   {
3.206     scop      557:     push(@barequery, join('=', uri_escape($_), uri_escape($input{$_})));
3.120     scop      558:   }
3.1       knu       559: }
3.80      knu       560:
3.168     scop      561: if ($allow_enscript) {
                    562:   push(@DIFFTYPES, qw(uc cc sc));
                    563:   @DIFFTYPES{qw(uc cc sc)} = (
                    564:     {
                    565:      'descr'   => 'unified, colored',
                    566:      'opts'    => ['-u'],
                    567:      'colored' => 0,
                    568:     },
                    569:     {
                    570:      'descr'   => 'context, colored',
                    571:      'opts'    => ['-c'],
                    572:      'colored' => 0,
                    573:     },
                    574:     {
                    575:      'descr'   => 'side by side, colored',
3.238     scop      576:      # width=168 should be enough to support 80 character line lengths
                    577:      'opts'    => ['--side-by-side', '--width=168'],
3.168     scop      578:      'colored' => 0,
                    579:     },
                    580:   );
                    581: } else {
                    582:   # No Enscript -> respect difftype, but don't offer colorization.
                    583:   if ($input{f} && $input{f} =~ /^([ucs])c$/) {
                    584:     $input{f} = $1;
                    585:   }
                    586: }
                    587:
3.1       knu       588: # is there any query ?
3.31      knu       589: if (@barequery) {
3.203     scop      590:   $barequery = join (';', @barequery);
3.120     scop      591:   $query     = "?$barequery";
3.203     scop      592:   $barequery = ";$barequery";
3.80      knu       593: } else {
3.120     scop      594:   $query = "";
3.1       knu       595: }
3.31      knu       596: undef @barequery;
3.1       knu       597:
3.254     scop      598: if (defined($input{path})) {
3.120     scop      599:   redirect("$scriptname/$input{path}$query");
3.57      knu       600: }
                    601:
3.1       knu       602: # get actual parameters
3.144     scop      603: {
                    604:   my $sortby = $input{sortby} || 'file';
                    605:   $bydate    = 0;
                    606:   $byrev     = 0;
                    607:   $byauthor  = 0;
                    608:   $bylog     = 0;
                    609:   $byfile    = 0;
                    610:   if ($sortby eq 'date') {
                    611:     $bydate = 1;
                    612:   } elsif ($sortby eq 'rev') {
                    613:     $byrev = 1;
                    614:   } elsif ($sortby eq 'author') {
                    615:     $byauthor = 1;
                    616:   } elsif ($sortby eq 'log') {
                    617:     $bylog = 1;
                    618:   } else {
                    619:     $byfile = 1;
                    620:   }
3.1       knu       621: }
                    622:
3.254     scop      623: $defaultDiffType = $input{f};
3.1       knu       624:
3.254     scop      625: $logsort = $input{logsort};
3.1       knu       626:
                    627: # alternate CVS-Tree, configured in cvsweb.conf
3.254     scop      628: if ($input{cvsroot} && $CVSROOT{$input{cvsroot}}) {
                    629:   $cvstree = $input{cvsroot};
3.1       knu       630: } else {
3.120     scop      631:   $cvstree = $cvstreedefault;
1.10      wosch     632: }
                    633:
3.1       knu       634: $cvsroot = $CVSROOT{$cvstree};
1.10      wosch     635:
3.1       knu       636: # create icons out of description
3.120     scop      637: foreach my $k (keys %ICONS) {
                    638:   my ($itxt, $ipath, $iwidth, $iheight) = @{$ICONS{$k}};
                    639:   no strict 'refs';
                    640:   if ($ipath) {
                    641:     ${"${k}icon"} =
3.208     scop      642:       sprintf('<img src="%s" alt="%s" border="0" width="%d" height="%d" />',
3.271     scop      643:               htmlquote($ipath), htmlquote($itxt), $iwidth, $iheight);
3.120     scop      644:   } else {
                    645:     ${"${k}icon"} = $itxt;
                    646:   }
1.24      wosch     647: }
                    648:
3.27      knu       649: my $config_cvstree = "$config-$cvstree";
                    650:
3.1       knu       651: # Do some special configuration for cvstrees
3.27      knu       652: if (-f $config_cvstree) {
3.120     scop      653:   do "$config_cvstree"
                    654:     or fatal("500 Internal Error",
3.208     scop      655:              'Error in loading configuration file: %s<br /><br />%s<br />',
3.120     scop      656:              $config_cvstree, $@);
3.27      knu       657: }
3.31      knu       658: undef $config_cvstree;
3.1       knu       659:
3.120     scop      660: $re_prcategories  = '(?:' . join ('|', @prcategories) . ')' if @prcategories;
                    661: $re_prkeyword     = quotemeta($prkeyword) if defined($prkeyword);
                    662: $prcgi           .= '%s' if defined($prcgi) && $prcgi !~ /%s/;
1.24      wosch     663:
3.233     scop      664: $fullname         = catfile($cvsroot, $where);
3.1       knu       665:
3.63      knu       666: my $rewrite = 0;
                    667: if ($pathinfo =~ m|//|) {
3.120     scop      668:   $pathinfo =~ y|/|/|s;
                    669:   $rewrite = 1;
3.63      knu       670: }
3.120     scop      671: if (-d $fullname) {
                    672:   if ($pathinfo !~ m|/$|) {
                    673:     $pathinfo .= '/';
                    674:     $rewrite   = 1;
                    675:   }
3.268     scop      676: } elsif ($pathinfo =~ m|/$|) {
                    677:   chop $pathinfo;
                    678:   $rewrite = 1;
3.63      knu       679: }
                    680: if ($rewrite) {
3.271     scop      681:   redirect($scriptname . uri_escape_path($pathinfo) . $query, 1);
3.1       knu       682: }
3.268     scop      683: undef $rewrite;
3.1       knu       684:
3.264     scop      685: undef $pathinfo;
3.63      knu       686:
3.1       knu       687: if (!-d $cvsroot) {
3.120     scop      688:   fatal("500 Internal Error",
                    689:         '$CVSROOT not found!<p>The server on which the CVS tree lives is probably down.  Please try again in a few minutes.');
3.1       knu       690: }
                    691:
                    692: #
3.233     scop      693: # Short-circuit forbidden things.  Note that $fullname should not change
                    694: # after this, because the rest of the code assumes this check has already
                    695: # been done.
3.1       knu       696: #
3.233     scop      697: fatal('403 Forbidden', 'Access to %s forbidden.', $where)
                    698:   if forbidden($fullname);
3.46      knu       699:
                    700: #
                    701: # Handle tarball downloads before any headers are output.
                    702: #
                    703: if ($input{tarball}) {
3.120     scop      704:   fatal('403 Forbidden', 'Downloading tarballs is prohibited.')
                    705:     unless $allow_tar;
3.191     scop      706:
3.120     scop      707:   my ($module)  =  ($where =~ m,^/?(.*),);    # untaint
                    708:   $module       =~ s,/([^/]*)$,,;
3.191     scop      709:   my ($ext)     =  ($1 =~ /(\.t(?:ar\.)?gz|\.zip)$/);
3.120     scop      710:   my ($basedir) =  ($module =~ m,([^/]+)$,);
                    711:
                    712:   if ($basedir eq '' || $module eq '') {
                    713:     fatal('500 Internal Error',
                    714:           'You cannot download the top level directory.');
                    715:   }
                    716:
3.191     scop      717:   my $istar = ($ext eq '.tar.gz' || $ext eq '.tgz');
                    718:   if ($istar) {
                    719:     fatal('500 Internal Error', 'tar command not found.') unless $CMD{tar};
                    720:     fatal('500 Internal Error', 'gzip command not found.') unless $CMD{gzip};
                    721:   }
                    722:   my $iszip = ($ext eq '.zip');
                    723:   if ($iszip && !$CMD{zip}) {
                    724:     fatal('500 Internal Error', 'zip command not found.');
                    725:   }
3.215     scop      726:   if (!$istar && !$iszip) {
                    727:     fatal('500 Internal Error', 'Unsupported archive type.');
                    728:   }
3.191     scop      729:
3.138     scop      730:   my $tmpexportdir;
                    731:   eval {
                    732:     local $SIG{__DIE__};
3.171     scop      733:     # Don't use the CLEANUP argument to tempdir() here, since we might be under
                    734:     # mod_perl (the process runs for a long time), unlink explicitly later.
                    735:     $tmpexportdir = tempdir('.cvsweb.XXXXXXXX', TMPDIR => 1);
3.138     scop      736:   };
                    737:   if ($@) {
                    738:     fatal('500 Internal Error', 'Unable to make temporary directory: %s', $@);
                    739:   }
3.191     scop      740:   if (!chdir($tmpexportdir)) {
                    741:     fatal('500 Internal Error',
                    742:           "Can't cd to temporary directory %s: %s", $tmpexportdir, $!);
                    743:   }
3.120     scop      744:
                    745:   my @fatal;
3.194     scop      746:   my $tag = $input{only_with_tag} || 'HEAD';
                    747:   $tag = 'HEAD' if ($tag eq 'MAIN');
3.120     scop      748:
3.215     scop      749:   my @cmd =
3.241     scop      750:     ($CMD{cvs}, @cvs_options, '-Qd', $cvsroot, 'export', '-r', $tag,
                    751:      '-d', $basedir, $module);
3.215     scop      752:   my $export_err;
                    753:   my ($errcode, $err) = runproc(\@cmd, '2>', \$export_err);
                    754:   if ($errcode) {
                    755:     @fatal =
                    756:       ('500 Internal Error',
                    757:        'Export failure (exit status %s), output: <pre>%s</pre>',
                    758:        $errcode, $err || $export_err);
3.191     scop      759:
3.215     scop      760:   } else {
3.191     scop      761:
3.120     scop      762:     $| = 1;    # Essential to get the buffering right.
3.191     scop      763:     local (*TAR_OUT);
3.120     scop      764:
3.191     scop      765:     my (@cmd, $ctype);
                    766:     if ($istar) {
                    767:       my @tar = ($CMD{tar}, @tar_options, '-cf', '-', $basedir);
                    768:       my @gzip = ($CMD{gzip}, @gzip_options, '-c');
                    769:       push(@cmd, \@tar, '|', \@gzip);
                    770:       $ctype = 'application/x-gzip';
                    771:     } elsif ($iszip) {
                    772:       my @zip = ($CMD{zip}, @zip_options, '-r', '-', $basedir);
                    773:       push(@cmd, \@zip, \'');
                    774:       $ctype = 'application/zip';
                    775:     }
3.229     scop      776:     push(@cmd, '>pipe', \*TAR_OUT);
3.191     scop      777:
                    778:     my ($h, $err) = startproc(@cmd);
                    779:     if ($h) {
                    780:       print "Content-Type: $ctype\r\n\r\n";
                    781:       local $/ = undef;
                    782:       print <TAR_OUT>;
3.229     scop      783:       $h->finish();
3.120     scop      784:     } else {
3.215     scop      785:       @fatal = ('500 Internal Error',
                    786:                 '%s failure (exit status %s), output: <pre>%s</pre>',
                    787:                 $istar ? 'Tar' : 'Zip', $? >> 8 || -1, $err);
3.120     scop      788:     }
                    789:   }
3.46      knu       790:
3.171     scop      791:   # Clean up.
                    792:   rmtree($tmpexportdir);
3.46      knu       793:
3.120     scop      794:   &fatal(@fatal) if @fatal;
3.46      knu       795:
3.120     scop      796:   exit;
3.46      knu       797: }
                    798:
3.1       knu       799: ##############################
                    800: # View a directory
                    801: ###############################
3.46      knu       802: if (-d $fullname) {
3.233     scop      803:
3.120     scop      804:   my $dh = do { local (*DH); };
                    805:   opendir($dh, $fullname) or fatal("404 Not Found", '%s: %s', $where, $!);
3.233     scop      806:   my @dir = grep(!forbidden(catfile($fullname, $_)), readdir($dh));
3.120     scop      807:   closedir($dh);
3.284     scop      808:   my @subLevelFiles = findLastModifiedSubdirs(@dir) if $show_subdir_lastmod;
3.150     scop      809:   my @unreadable = getDirLogs($cvsroot, $where, @subLevelFiles);
3.120     scop      810:
                    811:   if ($where eq '/') {
                    812:     html_header($defaulttitle);
                    813:     $long_intro =~ s/!!CVSROOTdescr!!/$CVSROOTdescr{$cvstree}/g;
                    814:     print $long_intro;
                    815:   } else {
                    816:     html_header($where);
3.212     scop      817:     my $html = (-f catfile($fullname, 'README.cvs.html,v') ||
                    818:                 -f catfile($fullname, 'Attic', 'README.cvs.html,v'));
                    819:     my $text = (!$html &&
                    820:                 (-f catfile($fullname, 'README.cvs,v') ||
                    821:                  -f catfile($fullname, 'Attic', 'README.cvs,v')));
                    822:     if ($html || $text) {
                    823:       my $rev = $input{only_with_tag} || 'HEAD';
                    824:       my $cr = abs_path($cvsroot) || $cvsroot;
                    825:       my $co = "$where/README.cvs.html" if $html;
                    826:       $co ||= "$where/README.cvs" if $text;
                    827:       # abs_path() taints when run as a CGI...
                    828:       if ($cr =~ VALID_PATH) {
                    829:         $cr = $1;
                    830:       } else {
                    831:         fatal('500 Internal Error', 'Illegal CVS root: <code>%s</code>', $cr);
                    832:       }
                    833:       my @cmd = ($CMD{cvs}, @cvs_options, '-d', $cr, 'co', '-p', "-r$rev",$co);
                    834:       local (*CVS_OUT, *CVS_ERR);
                    835:       my ($h, $err) = startproc(\@cmd, \"", '>pipe', \*CVS_OUT,
3.229     scop      836:                                 '2>pipe', \*CVS_ERR);
3.212     scop      837:       fatal('500 Internal Error', $err) unless $h;
                    838:       if ($html) {
                    839:         local $/ = undef;
                    840:         print <CVS_OUT>;
                    841:       } else {
                    842:         print "<p>\n";
                    843:         while (<CVS_OUT>) {
                    844:           chomp;
                    845:           print htmlquote($_), '<br />';
                    846:         }
                    847:         print "</p>";
                    848:       }
3.229     scop      849:       $h->finish();
3.212     scop      850:     }
3.120     scop      851:     print $short_instruction;
                    852:   }
                    853:
3.165     scop      854:   if ($use_descriptions &&
3.268     scop      855:       open(DESC, catfile($cvsroot, 'CVSROOT', 'descriptions'))) {
3.120     scop      856:     while (<DESC>) {
                    857:       chomp;
                    858:       my ($dir, $description) = /(\S+)\s+(.*)/;
                    859:       $descriptions{$dir} = $description;
                    860:     }
                    861:     close(DESC);
                    862:   }
                    863:
                    864:   print "<p><a name=\"dirlist\"></a></p>\n";
                    865:
                    866:   # give direct access to dirs
                    867:   if ($where eq '/') {
                    868:     chooseMirror();
                    869:     chooseCVSRoot();
3.268     scop      870:
3.120     scop      871:   } else {
3.257     scop      872:     print '<p>Current directory: <b>', clickablePath($where, 0), '</b>';
                    873:     if ($cvshistory_url) {
                    874:       (my $d = $where) =~ s|^/*(.*?)/*$|$1|;
3.258     scop      875:       print ' - ', history_link($d, '');
3.257     scop      876:     }
                    877:     print "</p>\n";
3.153     scop      878:     print "<p>Current tag: <b>", htmlquote($input{only_with_tag}), "</b></p>\n"
3.120     scop      879:       if $input{only_with_tag};
                    880:   }
                    881:
3.208     scop      882:   print "<hr />\n";
3.120     scop      883:
3.179     scop      884:   my $infocols = 1;
3.131     scop      885:
3.265     scop      886:   printf(<<EOF, 'Directory index of ' . htmlquote($where));
3.182     scop      887: <table class="dir" width="100%%" cellspacing="0" cellpadding="$tablepadding" summary="%s">
3.179     scop      888: <tr>
                    889: EOF
3.199     scop      890:   printf('<th colspan="2"%s>', ($byfile ? ' class="sorted"' : ''));
3.131     scop      891:
                    892:   if ($byfile) {
                    893:     print 'File';
                    894:   } else {
                    895:     print &link('File',
                    896:                 sprintf('./%s#dirlist', toggleQuery('sortby', 'file')));
                    897:   }
                    898:   print "</th>\n";
3.120     scop      899:
3.131     scop      900:   # Do not display the other column headers if we do not have any files
                    901:   # with revision information.
                    902:   if (scalar(%fileinfo)) {
3.120     scop      903:     $infocols++;
3.199     scop      904:     printf('<th%s>', ($byrev ? ' class="sorted"' : ''));
3.120     scop      905:
3.131     scop      906:     if ($byrev) {
                    907:       print 'Rev.';
3.120     scop      908:     } else {
3.131     scop      909:       print &link('Rev.',
                    910:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'rev')));
3.120     scop      911:     }
                    912:     print "</th>\n";
3.131     scop      913:     $infocols++;
3.199     scop      914:     printf('<th%s>', ($bydate ? ' class="sorted"' : ''));
3.120     scop      915:
3.131     scop      916:     if ($bydate) {
                    917:       print 'Age';
                    918:     } else {
                    919:       print &link('Age',
                    920:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'date')));
                    921:     }
                    922:     print "</th>\n";
3.120     scop      923:
3.131     scop      924:     if ($show_author) {
3.120     scop      925:       $infocols++;
3.199     scop      926:       printf('<th%s>', ($byauthor ? ' class="sorted"' : ''));
3.120     scop      927:
3.131     scop      928:       if ($byauthor) {
                    929:         print 'Author';
3.120     scop      930:       } else {
3.131     scop      931:         print
                    932:           &link('Author',
                    933:                 sprintf('./%s#dirlist', toggleQuery('sortby', 'author')));
3.120     scop      934:       }
                    935:       print "</th>\n";
3.131     scop      936:     }
                    937:     $infocols++;
3.199     scop      938:     printf('<th%s>', ($bylog ? ' class="sorted"' : ''));
3.120     scop      939:
3.131     scop      940:     if ($bylog) {
                    941:       print 'Last log entry';
                    942:     } else {
                    943:       print &link('Last log entry',
                    944:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'log')));
3.120     scop      945:     }
3.131     scop      946:     print "</th>\n";
                    947:   } elsif ($use_descriptions) {
3.199     scop      948:     print "<th>Description</th>\n";
3.131     scop      949:     $infocols++;
3.120     scop      950:   }
3.131     scop      951:   print "</tr>\n";
                    952:
3.120     scop      953:   my $dirrow = 0;
                    954:
                    955:   my $i;
                    956:   lookingforattic:
                    957:   for ($i = 0; $i <= $#dir; $i++) {
                    958:     if ($dir[$i] eq "Attic") {
                    959:       last lookingforattic;
                    960:     }
                    961:   }
                    962:
3.254     scop      963:   if (!$input{hideattic}
3.120     scop      964:       && ($i <= $#dir)
                    965:       && opendir($dh, $fullname . '/Attic'))
                    966:   {
                    967:     splice(@dir, $i, 1, grep((s|^|Attic/|, !m|/\.|), readdir($dh)));
                    968:     closedir($dh);
                    969:   }
                    970:
                    971:   my $hideAtticToggleLink =
3.254     scop      972:     $input{hideattic}
3.120     scop      973:     ? ''
3.239     scop      974:     : &link('[hide]', sprintf('./%s#dirlist', &toggleQuery('hideattic')));
3.120     scop      975:
                    976:   # Sort without the Attic/ pathname.
                    977:   # place directories first
                    978:
                    979:   my $filesexists;
                    980:   my $filesfound;
                    981:
                    982:   foreach my $file (sort { &fileSortCmp } @dir) {
                    983:
3.196     scop      984:     next if ($file eq curdir());
3.120     scop      985:
                    986:     # ignore CVS lock and stale NFS files
                    987:     next if ($file =~ /^\#cvs\.|^,|^\.nfs/); # \# for XEmacs cperl-mode...
                    988:
                    989:     # Check whether to show the CVSROOT path
3.254     scop      990:     next if ($input{hidecvsroot} && $where eq '/' && $file eq 'CVSROOT');
3.120     scop      991:
3.150     scop      992:     # Is it a directory?
3.232     scop      993:     my $isdir = -d catdir($fullname, $file);
3.150     scop      994:
                    995:     # Ignore non-readable files and directories?
3.254     scop      996:     next if ($input{hidenonreadable} && (! -r _ || ($isdir && ! -x _)));
3.120     scop      997:
3.268     scop      998:     my $attic = '';
3.120     scop      999:     if ($file =~ s|^Attic/||) {
3.239     scop     1000:       $attic = ' <span class="attic">(in the Attic) ' .
                   1001:         $hideAtticToggleLink . '</span>';
3.120     scop     1002:     }
                   1003:
3.196     scop     1004:     if ($file eq updir() || $isdir) {
                   1005:       next if ($file eq updir() && $where eq '/');
3.152     scop     1006:       my ($rev, $date, $log, $author, $filename, $keywordsubst) =
                   1007:         @{$fileinfo{$file}} if (defined($fileinfo{$file}));
3.239     scop     1008:       printf "<tr class=\"%s\">\n<td class=\"dir\" colspan=\"2\">",
3.132     scop     1009:         ($dirrow % 2) ? 'even' : 'odd';
3.120     scop     1010:
3.196     scop     1011:       if ($file eq updir()) {
3.268     scop     1012:         my $url = "../$query";
3.261     scop     1013:         print $nofilelinks ? $backicon : &link($backicon, $url);
3.120     scop     1014:         print '&nbsp;', &link("Parent Directory", $url);
3.261     scop     1015:
3.120     scop     1016:       } else {
3.271     scop     1017:         my $url = './' . uri_escape_path($file) . "/$query";
                   1018:         print '<a name="', htmlquote($file), '"></a>';
3.261     scop     1019:         print $nofilelinks ? $diricon : &link($diricon, $url);
3.136     scop     1020:         print '&nbsp;', &link(htmlquote("$file/"), $url), $attic;
3.120     scop     1021:         if ($file eq "Attic") {
3.239     scop     1022:           print ' <span class="attic">',
                   1023:             &link('[show]',
                   1024:                   sprintf('./%s#dirlist', &toggleQuery('hideattic'))),
                   1025:                     '</span>';
3.120     scop     1026:         }
                   1027:       }
                   1028:
                   1029:       # Show last change in dir
                   1030:       if ($filename) {
3.199     scop     1031:         print "</td>\n<td>&nbsp;</td>\n<td class=\"age\">";
                   1032:         print readableTime(time() - $date, 0) if $date;
                   1033:         print "</td>\n<td class=\"author\">", htmlquote($author)
                   1034:           if $show_author;
                   1035:         print "</td>\n<td class=\"log\">";
3.120     scop     1036:         $filename =~ s%^[^/]+/%%;
3.199     scop     1037:         print &link(htmlquote("$filename/$rev"),
                   1038:                     sprintf('%s/%s%s#rev%s',
3.206     scop     1039:                             uri_escape($file), uri_escape($filename),
3.208     scop     1040:                             $query, $rev)), '<br />';
3.120     scop     1041:         if ($log) {
3.199     scop     1042:           print htmlify(substr($log, 0, $shortLogLen), $allow_dir_extra);
3.120     scop     1043:           print '...' if (length($log) > 80);
                   1044:         }
3.199     scop     1045:
3.120     scop     1046:       } else {
                   1047:         my $dwhere = ($where ne '/' ? $where : '') . $file;
                   1048:
                   1049:         if ($use_descriptions && defined $descriptions{$dwhere}) {
3.199     scop     1050:           print '<td colspan="', ($infocols - 1), '">';
3.120     scop     1051:           print $descriptions{$dwhere};
                   1052:
3.131     scop     1053:         } elsif ($infocols > 1) {
3.120     scop     1054:
                   1055:           # close the row with the appropriate number of
                   1056:           # columns, so that the vertical seperators are visible
                   1057:           my ($cols) = $infocols;
                   1058:           while ($cols > 1) {
                   1059:             print "</td>\n<td>&nbsp;";
                   1060:             $cols--;
                   1061:           }
                   1062:         }
                   1063:       }
                   1064:
3.131     scop     1065:       print "</td>\n</tr>\n";
3.120     scop     1066:       $dirrow++;
3.131     scop     1067:
3.120     scop     1068:     } elsif ($file =~ s/,v$//) {
                   1069:
3.271     scop     1070:       my $fileurl = ($attic ? 'Attic/' : '') . uri_escape_path($file);
3.268     scop     1071:       my $url     = './' . $fileurl . $query;
3.120     scop     1072:       $filesexists++;
                   1073:       next if (!defined($fileinfo{$file}));
3.152     scop     1074:       my ($rev, $date, $log, $author, $filename, $keywordsubst) =
                   1075:         @{$fileinfo{$file}};
3.156     scop     1076:       my $isbinary = $keywordsubst eq 'b' ? 1 : 0;
3.120     scop     1077:       $filesfound++;
3.156     scop     1078:
3.199     scop     1079:       printf "<tr class=\"%s\">\n", ($dirrow % 2) ? 'even' : 'odd';
3.239     scop     1080:       printf '<td class="file"%s>', $allow_cvsgraph ? '' : ' colspan="2"';
3.120     scop     1081:
3.156     scop     1082:       my $icon = $isbinary ? $binfileicon : $fileicon;
3.261     scop     1083:       print $nofilelinks ? $icon : &link($icon, $url);
3.120     scop     1084:       print '&nbsp;', &link(htmlquote($file), $url), $attic;
3.199     scop     1085:       print '</td><td class="graph">', graph_link($fileurl) if $allow_cvsgraph;
3.219     scop     1086:       print "</td>\n<td width=\"30\">", display_link($fileurl, $rev);
3.199     scop     1087:       print "</td>\n<td class=\"age\">";
                   1088:       print readableTime(time() - $date, 0) if $date;
                   1089:       print "</td>\n<td class=\"author\">", htmlquote($author) if $show_author;
                   1090:       print "</td>\n<td class=\"log\">";
3.120     scop     1091:
                   1092:       if ($log) {
3.199     scop     1093:         print htmlify(substr($log, 0, $shortLogLen), $allow_dir_extra);
3.120     scop     1094:         print '...' if (length $log > 80);
                   1095:       }
3.131     scop     1096:       print "</td>\n</tr>";
3.120     scop     1097:       $dirrow++;
                   1098:     }
                   1099:     print "\n";
                   1100:   }
                   1101:
3.131     scop     1102:   print "</table>\n";
3.120     scop     1103:
3.150     scop     1104:   if ((my $num = scalar(@unreadable)) && ! $input{hidenonreadable}) {
                   1105:     printf(<<EOF, $num, htmlquote(join(', ', @unreadable)));
                   1106: <p>
3.208     scop     1107:  <b>NOTE:</b> The following %d unreadable files were ignored:<br />
3.150     scop     1108:  <em>%s</em>
                   1109: </p>
                   1110: EOF
                   1111:   }
                   1112:
3.120     scop     1113:   if ($filesexists && !$filesfound) {
3.150     scop     1114:     my $currtag = defined($input{only_with_tag}) ?
                   1115:       sprintf(' (%s)', htmlquote($input{only_with_tag})) : '';
                   1116:     printf(<<EOF, $filesexists, $currtag);
                   1117: <p>
                   1118:  <b>NOTE:</b> There are %d files, but none matches the current tag%s.
                   1119: </p>
                   1120: EOF
3.120     scop     1121:   }
                   1122:
                   1123:   if ($input{only_with_tag} && (!%tags || !$tags{$input{only_with_tag}})) {
                   1124:     %tags = %alltags;
                   1125:   }
                   1126:
                   1127:   if (scalar %tags
                   1128:       || $input{only_with_tag}
                   1129:       || $edit_option_form
3.254     scop     1130:       || defined($input{options}))
3.120     scop     1131:   {
3.208     scop     1132:     print "<hr />\n";
3.120     scop     1133:   }
                   1134:
                   1135:   if (scalar %tags || $input{only_with_tag}) {
3.208     scop     1136:     print "<form method=\"get\" action=\"./\">\n<p>\n";
3.120     scop     1137:     foreach my $var (@stickyvars) {
3.208     scop     1138:       printf("<input type=\"hidden\" name=\"$var\" value=\"%s\" />\n",
3.154     scop     1139:              htmlquote($input{$var}))
3.120     scop     1140:         if (defined($input{$var})
                   1141:             && (!defined($DEFAULTVALUE{$var})
                   1142:                 || $input{$var} ne $DEFAULTVALUE{$var})
                   1143:             && $var ne 'only_with_tag');
                   1144:     }
3.208     scop     1145:     printf(<<EOF, ($use_java_script ? ' onchange="this.form.submit()"' : ''));
3.239     scop     1146: <span class="nowrap">
3.208     scop     1147: <label for="only_with_tag" accesskey="T">Show only files with tag:
                   1148: <select id="only_with_tag" name="only_with_tag"%s>
                   1149: <option value="">All tags / default branch</option>
                   1150: EOF
3.120     scop     1151:     foreach my $tag (reverse sort { lc $a cmp lc $b } keys %tags) {
3.136     scop     1152:       my $selected =
                   1153:         defined($input{only_with_tag}) && $input{only_with_tag} eq $tag;
                   1154:       printf("<option%s>%s</option>\n",
3.208     scop     1155:              $selected ? ' selected="selected"' : '',
3.136     scop     1156:              htmlquote($tag));
3.120     scop     1157:     }
3.208     scop     1158:     printf(<<EOF, htmlquote($where));
                   1159: </select>
3.239     scop     1160: </label></span> <span class="nowrap">
                   1161: <label for="path" accesskey="P">Module path or alias:
3.208     scop     1162: <input type="text" id="path" name="path" value="%s" size="15" /></label>
3.239     scop     1163: </span>
3.208     scop     1164: <input type="submit" value="Go" accesskey="G" />
                   1165: </p>
                   1166: </form>
                   1167: EOF
3.120     scop     1168:   }
                   1169:
3.188     scop     1170:   if ($allow_tar && $filesfound) {
3.120     scop     1171:     my ($basefile) = ($where =~ m,(?:.*/)?([^/]+),);
3.192     scop     1172:     my $havetar = $CMD{tar} && $CMD{gzip};
                   1173:     my $havezip = $CMD{zip};
                   1174:     if (defined($basefile) && $basefile ne '' && ($havetar || $havezip)) {
3.203     scop     1175:       my $q = ($query ? "$query;" : '?') . 'tarball=1';
3.208     scop     1176:       print "<hr />\n",
3.189     scop     1177:         '<div style="text-align: center">Download this directory in ';
3.192     scop     1178:       # Mangle the filename so browsers show a reasonable filename to download.
                   1179:       my @types = ();
3.271     scop     1180:       $basefile = uri_escape($basefile);
3.192     scop     1181:       push(@types, &link('tarball', "$basefile.tar.gz$q")) if $havetar;
                   1182:       push(@types, &link('zip archive', "$basefile.zip$q")) if $havezip;
                   1183:       print join(' or ', @types), "</div>\n";
3.120     scop     1184:     }
                   1185:   }
                   1186:
3.254     scop     1187:   if ($edit_option_form || defined($input{options})) {
3.120     scop     1188:
3.149     scop     1189:     print <<EOF;
3.270     scop     1190: <form method="get" action="./">
3.189     scop     1191: <fieldset>
                   1192: <legend>General options</legend>
3.208     scop     1193: <input type="hidden" name="copt" value="1" />
3.149     scop     1194: EOF
3.283     scop     1195:     for my $v qw(hidecvsroot hidenonreadable) {
                   1196:       printf(qq{<input type="hidden" name="%s" value="%s" />\n},
                   1197:              $v, $input{$v} || 0);
                   1198:     }
3.120     scop     1199:     if ($cvstree ne $cvstreedefault) {
3.208     scop     1200:       print "<input type=\"hidden\" name=\"cvsroot\" value=\"$cvstree\" />\n";
3.120     scop     1201:     }
3.149     scop     1202:     print <<EOF;
3.265     scop     1203: <table summary="General options">
3.149     scop     1204: <tr>
3.189     scop     1205: <td class="opt-label">
                   1206: <label for="sortby" accesskey="F">Sort files by:</label>
                   1207: </td>
                   1208: <td class="opt-value">
3.149     scop     1209: <select id="sortby" name="sortby">
                   1210: <option value="">File</option>
                   1211: EOF
3.208     scop     1212:     print "<option", $bydate ? ' selected="selected"' : '',
3.120     scop     1213:       " value=\"date\">Age</option>\n";
3.208     scop     1214:     print "<option", $byauthor ? ' selected="selected"' : '',
3.120     scop     1215:       " value=\"author\">Author</option>\n"
3.140     scop     1216:         if $show_author;
3.208     scop     1217:     print "<option", $byrev ? ' selected="selected"' : '',
3.120     scop     1218:       " value=\"rev\">Revision</option>\n";
3.208     scop     1219:     print "<option", $bylog ? ' selected="selected"' : '',
3.120     scop     1220:       " value=\"log\">Log message</option>\n";
3.189     scop     1221:     print <<EOF;
                   1222: </select>,
                   1223: <label for="ignorecase" accesskey="I">case-insensitive:
                   1224: EOF
                   1225:     print '<input id="ignorecase" name="ignorecase" type="checkbox"',
3.208     scop     1226:       $input{ignorecase} ? ' checked="checked"' : '',
                   1227:         " value=\"1\" /></label>\n";
3.189     scop     1228:     print <<EOF;
                   1229: </td>
                   1230: <td class="opt-label">
                   1231: <label for="hideattic" accesskey="A">Hide files in Attic:</label>
                   1232: </td>
                   1233: <td class="opt-value">
                   1234: EOF
                   1235:     print '<input id="hideattic" name="hideattic" type="checkbox"',
3.208     scop     1236:       $input{hideattic} ? ' checked="checked"' : '', ' value="1" />';
3.189     scop     1237:     print <<EOF;
                   1238: </td>
                   1239: </tr>
                   1240: <tr>
                   1241: <td class="opt-label">
                   1242: <label for="logsort" accesskey="L">Sort log by:</label>
                   1243: </td>
                   1244: <td class="opt-value">
                   1245: EOF
3.120     scop     1246:     printLogSortSelect(0);
3.189     scop     1247:     print <<EOF;
                   1248: </td>
                   1249: <td class="opt-label">
                   1250: <label for="ln" accesskey="N">Show line numbers:</label>
                   1251: </td>
                   1252: <td class="opt-value">
                   1253: EOF
                   1254:     print '<input id="ln" name="ln" type="checkbox"',
3.208     scop     1255:       $input{ln} ? ' checked="checked"' : '', " value=\"1\" />\n";
3.189     scop     1256:     print <<EOF;
                   1257: </td>
                   1258: </tr>
                   1259: <tr>
                   1260: <td class="opt-label">
                   1261: <label for="f" accesskey="D">Diff format:</label>
                   1262: </td>
                   1263: <td>
                   1264: EOF
3.120     scop     1265:     printDiffSelect(0);
3.149     scop     1266:     print <<EOF;
3.189     scop     1267: </td>
                   1268: <td colspan="2" class="opt-label">
3.208     scop     1269: <input type="submit" value="Change Options" accesskey="C" />
3.189     scop     1270: </td>
3.149     scop     1271: </tr>
                   1272: </table>
3.189     scop     1273: </fieldset>
3.149     scop     1274: </form>
                   1275: EOF
3.120     scop     1276:   }
                   1277:   html_footer();
3.80      knu      1278: }
3.1       knu      1279:
                   1280: ###############################
                   1281: # View Files
                   1282: ###############################
3.80      knu      1283: elsif (-f $fullname . ',v') {
3.114     scop     1284:
3.254     scop     1285:   if (defined($input{rev}) || $doCheckout) {
3.275     scop     1286:     &doCheckout($fullname, $input{rev}, $input{only_with_tag});
3.120     scop     1287:     gzipclose();
                   1288:     exit;
                   1289:   }
                   1290:
3.254     scop     1291:   if (defined($input{annotate}) && $allow_annotate) {
3.275     scop     1292:     &doAnnotate($input{annotate}, $input{only_with_tag});
3.120     scop     1293:     gzipclose();
                   1294:     exit;
                   1295:   }
                   1296:
3.254     scop     1297:   if (defined($input{r1}) && defined($input{r2})) {
                   1298:     &doDiff($fullname,  $input{r1},  $input{tr1},
                   1299:             $input{r2}, $input{tr2}, $input{f});
3.120     scop     1300:     gzipclose();
                   1301:     exit;
                   1302:   }
3.132     scop     1303:
3.170     scop     1304:   if ($allow_cvsgraph && $input{graph}) {
                   1305:     if ($input{makeimage}) {
                   1306:       doGraph();
3.132     scop     1307:     } else {
3.170     scop     1308:       doGraphView();
3.132     scop     1309:     }
                   1310:     gzipclose();
                   1311:     exit;
                   1312:   }
                   1313:
3.120     scop     1314:   &doLog($fullname);
3.276     scop     1315: }
3.120     scop     1316:
3.276     scop     1317: ##############################
                   1318: # View Diff
                   1319: ##############################
                   1320: elsif ($fullname =~ s/\.diff$//
                   1321:        && -f $fullname . ',v' && $input{r1} && $input{r2})
3.120     scop     1322: {
                   1323:
                   1324:   # $where-diff-removal if 'cvs rdiff' is used
                   1325:   # .. but 'cvs rdiff'doesn't support some options
                   1326:   # rcsdiff does (-w and -p), so it is disabled
                   1327:   # $where =~ s/\.diff$//;
                   1328:
3.189     scop     1329:   # Allow diffs using the ".diff" extension so that browsers that default
                   1330:   # to the filename in the URL when saving don't save diffs as eg. foo.c.
3.254     scop     1331:   &doDiff($fullname,  $input{r1},  $input{tr1},
                   1332:           $input{r2}, $input{tr2}, $input{f});
3.120     scop     1333:   gzipclose();
                   1334:   exit;
                   1335:
3.276     scop     1336: }
                   1337:
                   1338: elsif (do { (my $tmp = $fullname) =~ s|/([^/]+)$|/Attic/$1|; -f "$tmp,v" }) {
3.120     scop     1339:   # The file has been removed and is in the Attic.
                   1340:   # Send a redirect pointing to the file in the Attic.
                   1341:   (my $newplace = $scriptwhere) =~ s|/([^/]+)$|/Attic/$1|;
                   1342:   if ($ENV{QUERY_STRING} ne "") {
3.268     scop     1343:     redirect("$newplace?$ENV{QUERY_STRING}");
3.120     scop     1344:   } else {
                   1345:     redirect($newplace);
                   1346:   }
                   1347:   exit;
3.268     scop     1348:
3.276     scop     1349: }
                   1350:
                   1351: elsif (0 && (my @files = &safeglob($fullname . ",v"))) {
3.120     scop     1352:   http_header("text/plain");
                   1353:   print "You matched the following files:\n";
                   1354:   print join ("\n", @files);
3.80      knu      1355:
3.276     scop     1356:   # TODO:
3.120     scop     1357:   # Find the tags from each file
                   1358:   # Display a form offering diffs between said tags
3.276     scop     1359: }
3.80      knu      1360:
3.276     scop     1361: else {
3.120     scop     1362:   # Assume it's a module name with a potential path following it.
3.268     scop     1363:   my $module;
3.266     scop     1364:   my $xtra = (($module = $where) =~ s|(/.*)||) ? $1 : '';
3.80      knu      1365:
3.120     scop     1366:   # Is there an indexed version of modules?
3.268     scop     1367:   my $fh = do { local (*FH); };
                   1368:   if (open($fh, catfile($cvsroot, 'CVSROOT', 'modules'))) {
3.120     scop     1369:     while (<$fh>) {
                   1370:       if (/^(\S+)\s+(\S+)/o
                   1371:           && $module eq $1
3.268     scop     1372:           && $module ne $2
                   1373:           && -d "$cvsroot/$2")
3.120     scop     1374:       {
3.267     scop     1375:         close($fh);
3.120     scop     1376:         redirect("$scriptname/$2$xtra$query");
                   1377:       }
                   1378:     }
3.267     scop     1379:     close($fh);
3.120     scop     1380:   }
                   1381:   fatal("404 Not Found", '%s: no such file or directory', $where);
3.80      knu      1382: }
3.23      knu      1383:
3.25      knu      1384: gzipclose();
3.80      knu      1385:
3.1       knu      1386: ## End MAIN
                   1387:
3.175     scop     1388:
3.120     scop     1389: sub printDiffSelect($)
                   1390: {
                   1391:   my ($use_java_script) = @_;
                   1392:
                   1393:   print '<select id="f" name="f"';
                   1394:   print ' onchange="this.form.submit()"' if $use_java_script;
                   1395:   print ">\n";
                   1396:
3.175     scop     1397:   for my $difftype (@DIFFTYPES) {
3.120     scop     1398:     printf("<option value=\"%s\"%s>%s</option>\n",
3.208     scop     1399:            $difftype, $input{f} eq $difftype ? ' selected="selected"' : '',
3.175     scop     1400:            "\u$DIFFTYPES{$difftype}{descr}");
3.120     scop     1401:   }
                   1402:
                   1403:   print "</select>";
                   1404: }
                   1405:
3.175     scop     1406:
3.168     scop     1407: sub printDiffSelectStickyVars()
                   1408: {
                   1409:   while (my ($key, $val) = each %input) {
                   1410:     next if ($key eq 'f');
                   1411:     next if (defined($DEFAULTVALUE{$key}) && $DEFAULTVALUE{$key} eq $val);
3.206     scop     1412:     print "<input type=\"hidden\" name=\"", htmlquote($key), "\" value=\"",
3.208     scop     1413:       htmlquote($val), "\" />\n";
3.168     scop     1414:   }
                   1415: }
                   1416:
3.175     scop     1417:
3.120     scop     1418: sub printLogSortSelect($)
                   1419: {
                   1420:   my ($use_java_script) = @_;
                   1421:
                   1422:   print '<select id="logsort" name="logsort"';
                   1423:   print ' onchange="this.form.submit()"' if $use_java_script;
                   1424:   print ">\n";
                   1425:
3.175     scop     1426:   for my $sortkey (@LOGSORTKEYS) {
3.120     scop     1427:     printf("<option value=\"%s\"%s>%s</option>\n",
3.208     scop     1428:            $sortkey, $logsort eq $sortkey ? ' selected="selected"' : '',
3.175     scop     1429:            "\u$LOGSORTKEYS{$sortkey}{descr}");
3.120     scop     1430:   }
                   1431:
                   1432:   print "</select>";
                   1433: }
                   1434:
3.175     scop     1435:
3.197     scop     1436: #
                   1437: # Find the last modified, version controlled files in the given directories.
                   1438: # Compares solely based on modification timestamps.  Files in the returned list
                   1439: # are without the ,v suffix, and unreadable files have been filtered out.
                   1440: #
3.120     scop     1441: sub findLastModifiedSubdirs(@)
                   1442: {
                   1443:   my (@dirs) = @_;
                   1444:
3.175     scop     1445:   my @files;
                   1446:   foreach my $dirname (@dirs) {
3.196     scop     1447:     next if ($dirname eq curdir() || $dirname eq updir());
                   1448:     my $dir = catdir($fullname, $dirname);
3.120     scop     1449:     next if (!-d $dir);
                   1450:
                   1451:     my $dh = do { local (*DH); };
                   1452:     opendir($dh, $dir) or next;
3.233     scop     1453:     my (@filenames) = grep(!forbidden(catfile($dir, $_)), readdir($dh));
3.120     scop     1454:     closedir($dh);
                   1455:
3.175     scop     1456:     my $lastmod     = undef;
                   1457:     my $lastmodtime = undef;
3.120     scop     1458:     foreach my $filename (@filenames) {
3.197     scop     1459:       ($filename) =
                   1460:         (catfile($dirname, $filename) =~ VALID_PATH) or next; # untaint
3.196     scop     1461:       my ($file) = catfile($fullname, $filename);
3.197     scop     1462:       next if ($filename !~ /,v$/o || !-f $file || !-r _);
                   1463:       my $modtime = -M _;
3.120     scop     1464:       if (!defined($lastmod) || $modtime < $lastmodtime) {
3.233     scop     1465:         ($lastmod    = $filename) =~ s/,v$//;
3.120     scop     1466:         $lastmodtime = $modtime;
                   1467:       }
                   1468:     }
3.175     scop     1469:     push(@files, $lastmod) if (defined($lastmod));
3.120     scop     1470:   }
                   1471:   return @files;
                   1472: }
                   1473:
3.175     scop     1474:
3.120     scop     1475: sub htmlify_sub(&$)
                   1476: {
                   1477:   (my $proc, local $_) = @_;
3.261     scop     1478:   my @a = split(m|(<a [^>]+>[^<]*</a>)|i);
3.120     scop     1479:   my $linked;
                   1480:   my $result = '';
                   1481:
                   1482:   while (($_, $linked) = splice(@a, 0, 2)) {
                   1483:     &$proc();
                   1484:     $result .= $_      if defined($_);
                   1485:     $result .= $linked if defined($linked);
                   1486:   }
                   1487:
3.175     scop     1488:   return $result;
3.120     scop     1489: }
                   1490:
3.175     scop     1491:
3.120     scop     1492: sub htmlify($;$)
                   1493: {
                   1494:   (local $_, my $extra) = @_;
                   1495:
                   1496:   $_ = htmlquote($_);
                   1497:
                   1498:   # get URL's as link
                   1499:   s{
3.130     scop     1500:     ((https?|ftp)://.+?)([\s\']|&(quot|[lg]t);)
3.120     scop     1501:    }{
3.130     scop     1502:      &link($1, htmlunquote($1)) . $3
3.120     scop     1503:    }egx;
                   1504:
3.290     scop     1505:   if ($allow_mailtos) {
                   1506:     # Make mailto: links from email addresses.
                   1507:     $_ = htmlify_sub {
                   1508:       s<
                   1509:         ([\w+=\-.!]+@[\w\-]+(?:\.[\w\-]+)+)
                   1510:        ><
                   1511:          &link($1, "mailto:$1")
                   1512:        >egix;
                   1513:     } $_;
                   1514:   }
3.120     scop     1515:
                   1516:   if ($extra) {
                   1517:
                   1518:     # get PR #'s as link: "PR#nnnn" "PR: nnnn, ..." "PR nnnn, ..." "bin/nnnn"
                   1519:     if (defined($prcgi) && defined($re_prkeyword)) {
                   1520:       my $prev;
                   1521:
                   1522:       do {
                   1523:         $prev = $_;
                   1524:
                   1525:         $_ = htmlify_sub {
                   1526:           s{
                   1527:             (\b$re_prkeyword[:\#]?\s*
                   1528:              (?:
                   1529:               \#?
                   1530:               \d+[,\s]\s*
                   1531:              )*
                   1532:              \#?)
                   1533:             (\d+)\b
                   1534:            }{
                   1535:              $1 . &link($2, sprintf($prcgi, $2))
                   1536:            }egix;
                   1537:         } $_;
                   1538:       } while ($_ ne $prev);
                   1539:
                   1540:       if (defined($re_prcategories)) {
                   1541:         $_ = htmlify_sub {
                   1542:           s{
                   1543:             (\b$re_prcategories/(\d+)\b)
                   1544:            }{
                   1545:              &link($1, sprintf($prcgi, $2))
                   1546:            }egox;
                   1547:         } $_;
                   1548:       }
                   1549:     }
                   1550:
                   1551:     # get manpage specs as link: "foo.1" "foo(1)"
                   1552:     if (defined($mancgi)) {
                   1553:       $_ = htmlify_sub {
                   1554:         s{
3.143     knu      1555:           (
                   1556:            \b ( \w[\w+\-.]* (?: ::\w[\w+\-.]*)* )
3.120     scop     1557:            (?:
3.143     knu      1558:             \( ([0-9n]) \) \B
3.120     scop     1559:             |
3.143     knu      1560:             \. ([0-9n]) \b
3.120     scop     1561:            )
                   1562:           )
                   1563:          }{
3.149     scop     1564:             my($text, $name, $section) = ($1, $2, defined($3) ? $3 : $4);
                   1565:             ($name =~ /[A-Za-z]/ && $name !~ /\.(:|$)/)
3.271     scop     1566:              ? &link($text, sprintf($mancgi, $section, uri_escape($name)))
3.149     scop     1567:               : $text;
3.120     scop     1568:          }egx;
                   1569:       } $_;
                   1570:     }
                   1571:   }
                   1572:
3.175     scop     1573:   return $_;
3.120     scop     1574: }
                   1575:
3.175     scop     1576:
3.120     scop     1577: sub spacedHtmlText($;$)
                   1578: {
3.175     scop     1579:   (local $_, my $ts) = @_;
3.224     scop     1580:   return '' unless defined($_);
3.284     scop     1581:   $ts ||= $tabstop || 8;
3.120     scop     1582:
3.286     scop     1583:   # Expand tabs
                   1584:   1 while s/(.*?)(\t+)/$1 . ' ' x (length($2) * $ts - length($1) % $ts)/e;
3.120     scop     1585:
                   1586:   if ($hr_breakable) {
3.277     scop     1587:     s/^ /\001nbsp;/;      # protect leading and...
                   1588:     s/ $/\001nbsp;/;      # ...trailing whitespace (mostly for String::Ediff),
                   1589:     s/  / \001nbsp;/g;    # ...and leave every other space 'breakable'
3.120     scop     1590:   } else {
                   1591:     s/ /\001nbsp;/g;
                   1592:   }
                   1593:
                   1594:   $_ = htmlify($_, $allow_source_extra);
                   1595:
                   1596:   # unescape
                   1597:   y/\001/&/;
                   1598:
                   1599:   return $_;
                   1600: }
                   1601:
3.175     scop     1602:
3.120     scop     1603: # Note that this doesn't htmlquote the first argument...
                   1604: sub link($$)
                   1605: {
                   1606:   my ($name, $url) = @_;
3.271     scop     1607:   return sprintf('<a href="%s">%s</a>', htmlquote($url), $name);
3.120     scop     1608: }
                   1609:
3.175     scop     1610:
3.120     scop     1611: sub revcmp($$)
                   1612: {
                   1613:   my ($rev1, $rev2) = @_;
                   1614:
                   1615:   # make no comparison for a tag or a branch
                   1616:   return 0 if $rev1 =~ /[^\d.]/ || $rev2 =~ /[^\d.]/;
                   1617:
3.261     scop     1618:   my (@r1) = split(/\./, $rev1);
                   1619:   my (@r2) = split(/\./, $rev2);
3.120     scop     1620:   my ($a, $b);
                   1621:
3.261     scop     1622:   while (($a = shift(@r1)) && ($b = shift(@r2))) {
                   1623:     return $a <=> $b unless ($a == $b);
3.120     scop     1624:   }
                   1625:   if (@r1) { return  1; }
                   1626:   if (@r2) { return -1; }
                   1627:   return 0;
                   1628: }
                   1629:
3.175     scop     1630:
3.287     scop     1631: #
                   1632: # Signal a fatal error.
                   1633: #
3.120     scop     1634: sub fatal($$@)
                   1635: {
                   1636:   my ($errcode, $format, @args) = @_;
3.185     scop     1637:   print "Status: $errcode\r\n";
3.131     scop     1638:   html_header('Error');
3.215     scop     1639:   print '<div id="error">Error: ',
                   1640:     sprintf($format, map(htmlquote($_), @args)), "</div>\n";
3.120     scop     1641:   html_footer();
                   1642:   exit(1);
                   1643: }
                   1644:
3.175     scop     1645:
3.269     scop     1646: #
3.287     scop     1647: # Signal a (fatal) configuration error.
                   1648: #
                   1649: sub config_error($$)
                   1650: {
                   1651:   fatal('500 Internal Error',
                   1652:         'Error loading configuration file "<code>%s</code>":<br /><br />' .
                   1653:         '%s<br />', @_);
                   1654: }
                   1655:
                   1656:
                   1657: #
3.269     scop     1658: # Sends a redirect to the given URL.
                   1659: #
                   1660: sub redirect($;$)
3.120     scop     1661: {
3.269     scop     1662:   my ($url, $permanent) = @_;
                   1663:   my ($status, $text);
                   1664:   if ($permanent) {
                   1665:     $status = '301';
                   1666:     $text   = 'Moved Permanently';
                   1667:   } else {
                   1668:     $status = '302';
                   1669:     $text   = 'Found';
                   1670:   }
                   1671:   print "Status: $status $text\r\n", "Location: $url\r\n";
                   1672:   html_header($text);
                   1673:   print "<p>This document has moved ", &link('here', $url), ".</p>\n";
3.120     scop     1674:   html_footer();
                   1675:   exit(1);
                   1676: }
                   1677:
3.175     scop     1678:
3.120     scop     1679: sub safeglob($)
                   1680: {
                   1681:   my ($filename) = @_;
                   1682:
3.175     scop     1683:   (my $dirname = $filename) =~ s|/[^/]+$||;
3.120     scop     1684:   $filename =~ s|.*/||;
                   1685:
3.175     scop     1686:   my @results;
                   1687:   my $dh = do { local (*DH); };
3.120     scop     1688:   if (opendir($dh, $dirname)) {
                   1689:     my $glob = $filename;
                   1690:     my $t;
                   1691:
3.149     scop     1692:     #   transform filename from glob to regex.  Deal with:
                   1693:     #   [, {, ?, * as glob chars
                   1694:     #   make sure to escape all other regex chars
3.120     scop     1695:     $glob =~ s/([\.\(\)\|\+])/\\$1/g;
                   1696:     $glob =~ s/\*/.*/g;
                   1697:     $glob =~ s/\?/./g;
                   1698:     $glob =~ s/{([^}]+)}/($t = $1) =~ s-,-|-g; "($t)"/eg;
3.222     scop     1699:     $glob = qr/^$glob$/;
                   1700:
3.120     scop     1701:     foreach (readdir($dh)) {
3.222     scop     1702:       if ($_ =~ $glob && $_ =~ VALID_PATH) {
3.194     scop     1703:         push(@results, catfile($dirname, $1)); # untaint
3.120     scop     1704:       }
                   1705:     }
                   1706:     closedir($dh);
                   1707:   }
                   1708:
3.175     scop     1709:   return @results;
3.120     scop     1710: }
                   1711:
3.160     scop     1712:
3.227     scop     1713: #
3.230     scop     1714: # Searches @command_path for the given executable file.
3.227     scop     1715: #
3.120     scop     1716: sub search_path($)
                   1717: {
                   1718:   my ($command) = @_;
3.230     scop     1719:   for my $d (@command_path) {
3.227     scop     1720:     my $cmd = catfile($d, $command);
                   1721:     return $cmd if (-x $cmd && !-d _);
3.120     scop     1722:   }
                   1723:   return '';
                   1724: }
                   1725:
3.156     scop     1726:
3.219     scop     1727: #
                   1728: # Gets the enscript(1) highlight mode corresponding to the given filename,
                   1729: # or undef if unsupported.
                   1730: #
                   1731: sub getEnscriptHL($)
                   1732: {
                   1733:   return undef unless $allow_enscript;
                   1734:   my ($filename) = @_;
                   1735:   while (my ($hl, $regex) = each %enscript_types) {
                   1736:     return $hl if ($filename =~ $regex);
                   1737:   }
                   1738:   return undef;
                   1739: }
                   1740:
                   1741:
                   1742: #
                   1743: # Gets the MIME type for the given file name.
                   1744: #
3.156     scop     1745: sub getMimeType($;$)
3.120     scop     1746: {
3.156     scop     1747:   my ($fullname, $binary) = @_;
                   1748:   $binary = ($keywordsubstitution && $keywordsubstitution =~ /b/)
                   1749:     unless defined($binary);
                   1750:
                   1751:   (my $suffix = $fullname) =~ s/^.*\.([^.]*)$/$1/;
                   1752:
                   1753:   my $mimetype = $MTYPES{$suffix};
                   1754:   $mimetype  ||= $MimeTypes->mimeTypeOf($fullname) if defined($MimeTypes);
                   1755:
                   1756:   if (!$mimetype && $suffix ne '*' && -f $mime_types && -r _) {
                   1757:     my $fh = do { local (*FH); };
                   1758:     if (open($fh, $mime_types)) {
                   1759:       my $re = sprintf('^\s*(\S+\/\S+)\s.+\b%s\b', quotemeta($suffix));
3.222     scop     1760:       $re = qr/$re/;
3.156     scop     1761:       while (my $line = <$fh>) {
                   1762:         if ($line =~ $re) {
                   1763:           $mimetype = $1;
                   1764:           $MTYPES{$suffix} = $mimetype;
                   1765:           last;
                   1766:         }
3.120     scop     1767:       }
3.156     scop     1768:       close($fh);
                   1769:     } else {
                   1770:       warn("Can't open MIME types file $mime_types for reading: $!");
3.120     scop     1771:     }
                   1772:   }
                   1773:
3.156     scop     1774:   $mimetype ||= $MTYPES{'*'};
                   1775:   $mimetype ||= $binary ? 'application/octet-stream' : 'text/plain';
3.120     scop     1776:   return $mimetype;
3.1       knu      1777: }
                   1778:
3.156     scop     1779:
3.1       knu      1780: ###############################
3.24      knu      1781: # read first lines like head(1)
                   1782: ###############################
3.120     scop     1783: sub head($;$)
                   1784: {
3.175     scop     1785:   my ($fh, $linecount) = @_;
                   1786:   $linecount ||= 10;
3.24      knu      1787:
3.120     scop     1788:   my @buf;
                   1789:   if ($linecount > 0) {
3.184     scop     1790:     for (my $i = 0; !eof($fh) && $i < $linecount; $i++) {
3.120     scop     1791:       push @buf, scalar <$fh>;
                   1792:     }
                   1793:   } else {
                   1794:     @buf = <$fh>;
                   1795:   }
3.175     scop     1796:   return @buf;
                   1797: }
3.120     scop     1798:
3.24      knu      1799:
                   1800: ###############################
                   1801: # scan vim and Emacs directives
                   1802: ###############################
3.120     scop     1803: sub scan_directives(@)
                   1804: {
                   1805:   my $ts = undef;
3.24      knu      1806:
3.120     scop     1807:   for (@_) {
                   1808:     $ts = $1 if /\b(?:ts|tabstop|tab-width)[:=]\s*([1-9]\d*)\b/;
                   1809:   }
3.24      knu      1810:
3.120     scop     1811:   ('tabstop' => $ts);
3.24      knu      1812: }
                   1813:
3.175     scop     1814:
3.120     scop     1815: sub openOutputFilter()
                   1816: {
3.175     scop     1817:   return unless $output_filter;
3.86      knu      1818:
3.120     scop     1819:   open(STDOUT, "|-") and return;
3.86      knu      1820:
3.120     scop     1821:   # child of child
3.273     scop     1822:   open(STDERR, '>', devnull()) unless $DEBUG;
3.120     scop     1823:   exec($output_filter) or exit -1;
3.86      knu      1824: }
                   1825:
3.175     scop     1826:
3.24      knu      1827: ###############################
3.1       knu      1828: # show Annotation
                   1829: ###############################
3.275     scop     1830: sub doAnnotate($$)
3.120     scop     1831: {
3.275     scop     1832:   my ($rev, $tag) = @_;
                   1833:   $rev = $tag || 'HEAD' if ($rev eq '.');
3.262     scop     1834:   (my $pathname = $where) =~ s|((?<=/)Attic/)?[^/]*$||;
3.261     scop     1835:   (my $filename = $where) =~ s|^.*/||;
3.126     scop     1836:
3.174     scop     1837:   # This annotate version is based on the cvs annotate-demo Perl script by
                   1838:   # Cyclic Software.  It was written by Cyclic Software,
                   1839:   # http://www.cyclic.com/, and is in the public domain.
                   1840:   # We could abandon the use of rlog, rcsdiff and co using
                   1841:   # the cvs server in a similiar way one day (..after rewrite).
                   1842:
                   1843:   local (*CVS_IN, *CVS_OUT);
3.215     scop     1844:   my $annotate_err;
3.174     scop     1845:   my ($h, $err) =
                   1846:     startproc([ $CMD{cvs}, @annotate_options, 'server' ],
3.215     scop     1847:               '<pipe', \*CVS_IN, '>pipe', \*CVS_OUT,
3.229     scop     1848:               '2>', \$annotate_err);
3.215     scop     1849:   fatal('500 Internal Error',
                   1850:         'Annotate failure (exit status %s), output: <pre>%s</pre>',
                   1851:         $? >> 8 || -1, $err)
                   1852:     unless $h;
3.120     scop     1853:
                   1854:   # OK, first send the request to the server.  A simplified example is:
                   1855:   #     Root /home/kingdon/zwork/cvsroot
                   1856:   #     Argument foo/xx
                   1857:   #     Directory foo
                   1858:   #     /home/kingdon/zwork/cvsroot/foo
                   1859:   #     Directory .
                   1860:   #     /home/kingdon/zwork/cvsroot
                   1861:   #     annotate
                   1862:   # although as you can see there are a few more details.
                   1863:
3.174     scop     1864:   print CVS_IN "Root $cvsroot\n";
                   1865:   print CVS_IN
3.120     scop     1866:     "Valid-responses ok error Valid-requests Checked-in Updated Merged Removed M E\n";
                   1867:
                   1868:   # Don't worry about sending valid-requests, the server just needs to
                   1869:   # support "annotate" and if it doesn't, there isn't anything to be done.
3.174     scop     1870:   print CVS_IN "UseUnchanged\n";
                   1871:   print CVS_IN "Argument -r\n";
                   1872:   print CVS_IN "Argument $rev\n";
                   1873:   print CVS_IN "Argument $where\n";
3.120     scop     1874:
                   1875:   # The protocol requires us to fully fake a working directory (at
                   1876:   # least to the point of including the directories down to the one
                   1877:   # containing the file in question).
3.123     scop     1878:   # So if $where is "dir/sdir/file", then dirs will be ("dir","sdir","file")
                   1879:   my $path = '';
                   1880:   foreach my $dir (split('/', $where)) {
3.120     scop     1881:
                   1882:     if ($path eq "") {
3.123     scop     1883:       # In our example, $dir is "dir".
                   1884:       $path = $dir;
3.120     scop     1885:     } else {
3.174     scop     1886:       print CVS_IN "Directory $path\n";
                   1887:       print CVS_IN "$cvsroot/$path\n";
3.120     scop     1888:
                   1889:       # In our example, $_ is "sdir" and $path becomes "dir/sdir"
                   1890:       # And the next time, "file" and "dir/sdir/file" (which then gets
                   1891:       # ignored, because we don't need to send Directory for the file).
3.123     scop     1892:       $path .= "/$dir";
3.120     scop     1893:     }
                   1894:   }
3.123     scop     1895:   undef $path;
3.120     scop     1896:
                   1897:   # And the last "Directory" before "annotate" is the top level.
3.174     scop     1898:   print CVS_IN "Directory .\n";
                   1899:   print CVS_IN "$cvsroot\n";
3.120     scop     1900:
3.174     scop     1901:   print CVS_IN "annotate\n";
3.120     scop     1902:
                   1903:   # OK, we've sent our command to the server.  Thing to do is to
3.215     scop     1904:   # close the writer side and get all the responses.
                   1905:   if (!close(CVS_IN)) {
3.229     scop     1906:     $h->finish();
3.215     scop     1907:     fatal('500 Internal Error',
                   1908:           'Annotate failure (exit status %s): <code>%s</code>, output: ' .
                   1909:           '<pre>%s</pre>', $? >> 8, $!, $annotate_err);
                   1910:   }
3.120     scop     1911:
3.133     scop     1912:   navigateHeader($scriptwhere, $pathname, $filename, $rev, 'annotate');
3.120     scop     1913:
3.275     scop     1914:   my $revtype = ($rev =~ /\./) ? 'revision' : 'tag'; # TODO: tag -> branch/tag?
3.136     scop     1915:   print '<h3 style="text-align: center">Annotation of ',
3.275     scop     1916:     htmlquote("$pathname$filename"), ", $revtype $rev</h3>\n";
3.120     scop     1917:
                   1918:   # Ready to get the responses from the server.
                   1919:   # For example:
                   1920:   #     E Annotations for foo/xx
                   1921:   #     E ***************
                   1922:   #     M 1.3          (kingdon  06-Sep-97): hello
                   1923:   #     ok
                   1924:   my ($lineNr) = 0;
                   1925:   my ($oldLrev, $oldLusr) = ("", "");
                   1926:   my ($revprint, $usrprint);
                   1927:
                   1928:   if ($annTable) {
3.179     scop     1929:     print <<EOF;
                   1930: <table style="border: none" cellspacing="0" cellpadding="0" summary="Annotation">
                   1931: EOF
3.120     scop     1932:   } else {
                   1933:     print "<pre>";
                   1934:   }
                   1935:
                   1936:   # prefetch several lines
3.174     scop     1937:   my @buf = head(*CVS_OUT);
3.120     scop     1938:
                   1939:   my %d = scan_directives(@buf);
                   1940:
3.174     scop     1941:   while (@buf || !eof(*CVS_OUT)) {
3.197     scop     1942:
3.174     scop     1943:     $_ = @buf ? shift @buf : <CVS_OUT>;
3.120     scop     1944:     my @words = split;
                   1945:
                   1946:     # Adding one is for the (single) space which follows $words[0].
                   1947:     my $rest = substr($_, length($words[0]) + 1);
                   1948:     if ($words[0] eq "E") {
                   1949:       next;
                   1950:     } elsif ($words[0] eq "M") {
                   1951:       $lineNr++;
                   1952:       (my $lrev = substr($_, 2,  13)) =~ y/ //d;
                   1953:       (my $lusr = substr($_, 16, 9))  =~ y/ //d;
                   1954:       my $line = substr($_, 36);
3.275     scop     1955:       # TODO: this does not work for branch/tag revisions.
3.120     scop     1956:       my $isCurrentRev = ($rev eq $lrev);
                   1957:
                   1958:       # we should parse the date here ..
                   1959:       if ($lrev eq $oldLrev) {
                   1960:         $revprint = sprintf('%-8s', '');
                   1961:       } else {
                   1962:         $revprint = sprintf('%-8s', $lrev);
3.266     scop     1963:         $revprint =~ s|(\S+)|&link($1, uri_escape($filename)."$query#rev$1")|e;
3.120     scop     1964:         $oldLusr = '';
                   1965:       }
                   1966:
3.268     scop     1967:       $usrprint = ($lusr eq $oldLusr) ? '' : $lusr;
3.120     scop     1968:       $oldLrev = $lrev;
                   1969:       $oldLusr = $lusr;
                   1970:
3.250     scop     1971:       print $is_textbased ? '<b>' : '<span class="current-rev">'
                   1972:         if $isCurrentRev;
3.120     scop     1973:
3.136     scop     1974:       $usrprint = sprintf('%-8s', $usrprint);
                   1975:       printf '%s%s %s %4d:', $revprint, $isCurrentRev ? '!' : ' ',
                   1976:         htmlquote($usrprint), $lineNr;
3.254     scop     1977:       print spacedHtmlText($line, $d{tabstop});
3.120     scop     1978:
3.250     scop     1979:       print $is_textbased ? '</b>' : '</span>' if $isCurrentRev;
                   1980:
3.120     scop     1981:     } elsif ($words[0] eq "ok") {
                   1982:       # We could complain about any text received after this, like the
                   1983:       # CVS command line client.  But for simplicity, we don't.
3.275     scop     1984:
3.120     scop     1985:     } elsif ($words[0] eq "error") {
                   1986:       fatal("500 Internal Error",
                   1987:             'Error occured during annotate: <b>%s</b>', $_);
                   1988:     }
                   1989:   }
3.229     scop     1990:   $h->finish();
3.120     scop     1991:
                   1992:   if ($annTable) {
                   1993:     print "</table>";
                   1994:   } else {
                   1995:     print "</pre>";
                   1996:   }
3.124     scop     1997:   html_footer();
3.1       knu      1998: }
                   1999:
                   2000: ###############################
                   2001: # make Checkout
                   2002: ###############################
3.275     scop     2003: sub doCheckout($$$)
3.120     scop     2004: {
3.275     scop     2005:   my ($fullname, $rev, $tag) = @_;
                   2006:   $rev = $tag || undef if (!$rev || $rev eq '.');
3.120     scop     2007:
3.219     scop     2008:   # Start resolving whether we will do a markup view or not.
                   2009:   my $do_markup = undef;
3.226     scop     2010:   my $want_type = $input{'content-type'};
                   2011:
3.219     scop     2012:   # No markup if markup disallowed.
                   2013:   $do_markup = 0 unless $allow_markup;
3.226     scop     2014:
3.219     scop     2015:   # No markup if checkout magic cookie in URL.
                   2016:   $do_markup = 0 if (!defined($do_markup) && $doCheckout);
3.226     scop     2017:
3.219     scop     2018:   # Do markup if explicitly asked using cvsweb-markup content type.  If the
                   2019:   # asked content type is anything else, no markup.
3.226     scop     2020:   if (!defined($do_markup) && $want_type) {
                   2021:     if ($want_type =~ CVSWEBMARKUP) {
                   2022:       $want_type = undef;
                   2023:       $do_markup = 1;
                   2024:     } else {
                   2025:       $do_markup = 0;
                   2026:     }
3.219     scop     2027:   }
                   2028:
                   2029:   # Ok, if $do_markup is still undefined, we know that a download has not been
                   2030:   # explicitly asked.  For the last check further down below we'll need to
                   2031:   # know if the file is binary, and possibly run a log on it.
                   2032:   my $needlog = $do_markup || $use_moddate;
3.120     scop     2033:
3.163     scop     2034:   my $moddate = undef;
3.175     scop     2035:   my $revopt;
3.120     scop     2036:   if (defined($rev)) {
                   2037:     $revopt = "-r$rev";
3.219     scop     2038:     if ($needlog) {
3.120     scop     2039:       readLog($fullname, $rev);
3.275     scop     2040:       $moddate   = $date{$rev};
                   2041:       # TODO: even this does not work for branch tags, but only normal tags :(
                   2042:       $moddate ||= $date{$symrev{$rev}} if defined($symrev{$rev});
3.120     scop     2043:     }
                   2044:   } else {
                   2045:     $revopt = "-rHEAD";
3.219     scop     2046:     if ($needlog) {
3.120     scop     2047:       readLog($fullname);
                   2048:       $moddate = $date{$symrev{HEAD}};
                   2049:     }
                   2050:   }
                   2051:
3.194     scop     2052:   my $cr = abs_path($cvsroot) || $cvsroot;
                   2053:   # abs_path() taints when run as a CGI...
                   2054:   if ($cr =~ VALID_PATH) {
                   2055:     $cr = $1;
                   2056:   } else {
                   2057:     fatal('500 Internal Error', 'Illegal CVS root: <code>%s</code>', $cr);
                   2058:   }
3.183     scop     2059:   # Use abs_path() to work around a bug of cvs -p; expand symlinks if we can.
3.194     scop     2060:   my @cmd = ($CMD{cvs}, @cvs_options, '-d', $cr, 'co', '-p', $revopt, $where);
3.183     scop     2061:
3.174     scop     2062:   local (*CVS_OUT, *CVS_ERR);
                   2063:   my ($h, $err) =
3.229     scop     2064:     startproc(\@cmd, \"", '>pipe', \*CVS_OUT, '2>pipe', \*CVS_ERR);
3.215     scop     2065:   fatal('500 Internal Error',
                   2066:         'Checkout failure (exit status %s), output: <pre>%s</pre>',
                   2067:         $? >> 8 || -1, $err)
                   2068:     unless $h;
3.120     scop     2069:
3.174     scop     2070:   if (eof(CVS_ERR)) {
3.229     scop     2071:     $h->finish();
3.120     scop     2072:     fatal("404 Not Found", '%s is not (any longer) pertinent', $where);
                   2073:   }
                   2074:
                   2075:   #===================================================================
                   2076:   #Checking out squid/src/ftp.c
                   2077:   #RCS:  /usr/src/CVS/squid/src/ftp.c,v
                   2078:   #VERS: 1.1.1.28.6.2
                   2079:   #***************
                   2080:
                   2081:   # Parse CVS header
                   2082:   my ($revision, $filename, $cvsheader);
                   2083:   $filename = "";
3.174     scop     2084:   while (<CVS_ERR>) {
3.120     scop     2085:     last if (/^\*\*\*\*/);
                   2086:     $revision = $1 if (/^VERS: (.*)$/);
                   2087:
                   2088:     if (/^Checking out (.*)$/) {
3.214     scop     2089:       ($filename = $1) =~ s|^\./+||;
3.120     scop     2090:     }
                   2091:     $cvsheader .= $_;
                   2092:   }
3.219     scop     2093:   close(CVS_ERR);
3.120     scop     2094:
                   2095:   if ($filename ne $where) {
3.229     scop     2096:     $h->finish();
3.120     scop     2097:     fatal("500 Internal Error",
3.214     scop     2098:           'Unexpected output from cvs co: <pre>%s</pre> ' .
                   2099:           '(expected "<code>%s</code>" but got "<code>%s</code>")',
                   2100:           $cvsheader, $where, $filename);
3.120     scop     2101:   }
                   2102:
3.219     scop     2103:   # Last checks whether we'll do markup or not.
                   2104:   my $isbin = $keywordsubstitution && $keywordsubstitution =~ /b/;
                   2105:   my $mimetype = getMimeType($fullname, $isbin);
                   2106:
                   2107:   # If we still are not sure whether to do markup or not:
                   2108:   # if the MIME type is "viewable" or this is not a binary file, do.
                   2109:   $do_markup = !$isbin || viewable($mimetype) unless defined($do_markup);
                   2110:
                   2111:   if ($do_markup) {
                   2112:
                   2113:     # If this is something we'll be linking to in the markup view, we are
                   2114:     # done with this particular output from "cvs co" and must discard it.
                   2115:     my $linked = $mimetype =~ m{^image/|application/pdf$}i;
                   2116:     if ($linked) {
                   2117:       close(CVS_OUT);
3.229     scop     2118:       $h->finish();
3.219     scop     2119:     }
                   2120:
3.163     scop     2121:     # Here we know the last modified date, but don't know if tags have been
3.219     scop     2122:     # added afterwards (those are shown in the markup view): no last-modified.
                   2123:     cvswebMarkup(\*CVS_OUT, $fullname, $revision, $isbin, $mimetype, $needlog);
                   2124:
3.229     scop     2125:     $h->finish() unless $linked;
3.219     scop     2126:
3.120     scop     2127:   } else {
3.226     scop     2128:     http_header($want_type || $mimetype, $moddate);
3.174     scop     2129:     local $/ = undef;
                   2130:     print <CVS_OUT>;
3.229     scop     2131:     $h->finish();
3.120     scop     2132:   }
1.12      fenner   2133: }
                   2134:
3.174     scop     2135:
3.219     scop     2136: sub cvswebMarkup($$$$$$;$)
3.120     scop     2137: {
3.219     scop     2138:   my ($filehandle, $fullname, $rev, $isbin, $mimetype, $logged, $mod) = @_;
3.1       knu      2139:
3.262     scop     2140:   (my $pathname = $where) =~ s|((?<=/)Attic/)?[^/]*$||;
3.261     scop     2141:   (my $filename = $where) =~ s|^.*/||;
3.120     scop     2142:
3.219     scop     2143:   navigateHeader($scriptwhere, $pathname, $filename, $rev, 'view', $mod);
3.120     scop     2144:
3.144     scop     2145:   print <<EOF;
3.208     scop     2146: <hr />
3.182     scop     2147: <div class="log-markup">
                   2148: File:&nbsp;
3.144     scop     2149: EOF
3.219     scop     2150:   print &clickablePath($where, 1), "<br />\n";
3.120     scop     2151:
                   2152:   if ($show_log_in_markup) {
3.219     scop     2153:     readLog($fullname) unless $logged; #,$rev);
                   2154:     printLog($rev, $mimetype, $isbin);
3.120     scop     2155:   } else {
3.244     scop     2156:     print "Revision: <b>$rev</b><br />\n";
                   2157:     print 'Tag: ', htmlquote($input{only_with_tag}), "<br />\n"
3.120     scop     2158:       if $input{only_with_tag};
                   2159:   }
3.208     scop     2160:   print "</div>\n<hr />";
3.271     scop     2161:   my $url = download_url(uri_escape($filename), $rev, $mimetype);
3.120     scop     2162:
3.219     scop     2163:   if ($mimetype =~ m|^image/|i) {
3.208     scop     2164:     printf '<img src="%s" alt="%s" /><br />',
3.271     scop     2165:       $url . $barequery, htmlquote($filename);
3.219     scop     2166:   } elsif (lc($mimetype) eq 'application/pdf') {
3.208     scop     2167:     printf '<embed src="%s" width="100%%" height="100%%" /><br />',
3.271     scop     2168:       $url . $barequery;
3.120     scop     2169:   } else {
                   2170:
3.208     scop     2171:     print "<pre>\n";
3.167     scop     2172:     my $linenumbers = $input{ln} || 0;
3.149     scop     2173:
3.219     scop     2174:     if (my $enscript_hl = getEnscriptHL($filename)) {
3.167     scop     2175:       doEnscript($filehandle, $enscript_hl, $linenumbers);
3.148     scop     2176:
                   2177:     } else {
3.200     scop     2178:       my $ln  = 0;
                   2179:       my @buf = ();
                   2180:       my $ts  = undef;
                   2181:
                   2182:       if ($preformat_in_markup) {
                   2183:         # prefetch several lines
                   2184:         @buf = head($filehandle);
                   2185:         my %d = scan_directives(@buf);
                   2186:         $ts = $d{tabstop};
                   2187:       }
                   2188:
                   2189:       while (@buf || !eof($filehandle)) {
                   2190:         $_ = @buf ? shift @buf : <$filehandle>;
3.167     scop     2191:         if ($linenumbers) {
                   2192:           $ln++;
                   2193:           printf '<a id="l%d" class="src">%5d: </a>', ($ln) x 2;
3.149     scop     2194:         }
3.200     scop     2195:         print $preformat_in_markup ? spacedHtmlText($_, $ts) : htmlquote($_);
3.148     scop     2196:       }
3.120     scop     2197:     }
3.149     scop     2198:
                   2199:     print "</pre>\n";
3.120     scop     2200:   }
3.131     scop     2201:   html_footer();
3.120     scop     2202: }
                   2203:
3.156     scop     2204:
3.120     scop     2205: sub viewable($)
                   2206: {
3.219     scop     2207:   return shift =~ m{^((text|image)/|application/pdf)}i;
3.156     scop     2208: }
3.120     scop     2209:
3.1       knu      2210:
                   2211: ###############################
                   2212: # Show Colored Diff
                   2213: ###############################
3.120     scop     2214: sub doDiff($$$$$$)
                   2215: {
                   2216:   my ($fullname, $r1, $tr1, $r2, $tr2, $f) = @_;
                   2217:
3.233     scop     2218:   if (forbidden($fullname)) {
                   2219:     fatal('403 Forbidden', 'Access to %s forbidden.', $where);
3.120     scop     2220:   }
                   2221:
3.175     scop     2222:   my ($rev1, $sym1);
3.120     scop     2223:   if ($r1 =~ /([^:]+)(:(.+))?/) {
                   2224:     $rev1 = $1;
                   2225:     $sym1 = $3;
                   2226:   }
                   2227:   if ($r1 eq 'text') {
                   2228:     $rev1 = $tr1;
                   2229:     $sym1 = "";
                   2230:   }
                   2231:
3.175     scop     2232:   my ($rev2, $sym2);
3.120     scop     2233:   if ($r2 =~ /([^:]+)(:(.+))?/) {
                   2234:     $rev2 = $1;
                   2235:     $sym2 = $3;
                   2236:   }
                   2237:   if ($r2 eq 'text') {
                   2238:     $rev2 = $tr2;
                   2239:     $sym2 = "";
                   2240:   }
                   2241:
                   2242:   #
                   2243:   # rev1 and rev2 are now both numeric revisions.
                   2244:   # Thus we do a DWIM here and swap them if rev1 is after rev2.
                   2245:   # XXX should we warn about the fact that we do this?
                   2246:   if (&revcmp($rev1, $rev2) > 0) {
                   2247:     my ($tmp1, $tmp2) = ($rev1, $sym1);
                   2248:     ($rev1, $sym1) = ($rev2, $sym2);
                   2249:     ($rev2, $sym2) = ($tmp1, $tmp2);
                   2250:   }
3.225     scop     2251:
                   2252:   my $mimetype = getMimeType($fullname);
                   2253:
                   2254:   #
                   2255:   #  Check for per-MIME type diff commands.
                   2256:   #
                   2257:   my $diffcmd = undef;
                   2258:   if (my $diffcmds = $DIFF_COMMANDS{lc($mimetype)}) {
                   2259:     if ($f =~ /^ext(\d*)$/) {
                   2260:       my $n = $1 || 0;
                   2261:       $diffcmd = $diffcmds->[$n];
                   2262:     }
                   2263:   }
                   2264:   if ($diffcmd && $diffcmd->{cmd} && $diffcmd->{name}) {
                   2265:
                   2266:     if ($diffcmd->{args} && ref($diffcmd->{args}) ne 'ARRAY') {
                   2267:       fatal('500 Internal Error',
                   2268:             'Configuration error: arguments to external diff tools must ' .
                   2269:             'be given as array refs.  See "<code>%s</code>" in ' .
                   2270:             '<code>%%DIFF_COMMANDS</code>.',
                   2271:             $diffcmd->{name});
                   2272:     }
                   2273:
                   2274:     (my $cvsname = $where) =~ s/\.diff$//;
                   2275:
                   2276:     # Create two temporary files with the two revisions
                   2277:     my $temp_fn1 = checkout_to_temp($cvsroot, $cvsname, $rev1);
                   2278:     my $temp_fn2 = checkout_to_temp($cvsroot, $cvsname, $rev2);
                   2279:
                   2280:     # Execute chosen diff binary.
                   2281:     local (*DIFF_OUT);
                   2282:     my @cmd = ($diffcmd->{cmd});
                   2283:     push(@cmd, @{$diffcmd->{args}}) if $diffcmd->{args};
                   2284:     push(@cmd, $temp_fn1, $temp_fn2);
                   2285:     my ($h, $err) = startproc(\@cmd, \"", '>pipe', \*DIFF_OUT);
                   2286:     if (!$h) {
                   2287:       unlink($temp_fn1);
                   2288:       unlink($temp_fn2);
                   2289:       fatal('500 Internal Error',
                   2290:             'Diff failure (exit status %s), output: <pre>%s</pre>',
                   2291:             $? >> 8 || -1, $err);
                   2292:     }
                   2293:
                   2294:     http_header($diffcmd->{type} || 'text/plain');
                   2295:     local $/ = undef;
                   2296:     print <DIFF_OUT>;
3.229     scop     2297:     $h->finish();
3.225     scop     2298:     unlink($temp_fn1);
                   2299:     unlink($temp_fn2);
                   2300:
                   2301:     exit;
                   2302:   }
                   2303:
                   2304:   #
                   2305:   # Normal CVS diff.
                   2306:   #
                   2307:
                   2308:   $f = $DEFAULTVALUE{f} || 'u' if ($f =~ /^ext\d*$/);
3.120     scop     2309:   my $difftype = $DIFFTYPES{$f};
                   2310:   if (!$difftype) {
                   2311:     fatal("400 Bad arguments", 'Diff format %s not understood', $f);
                   2312:   }
                   2313:
3.254     scop     2314:   my @difftype       = @{$difftype->{opts}};
                   2315:   my $human_readable = $difftype->{colored};
3.120     scop     2316:
3.247     scop     2317:   # Apply special diff options.  -p and -F are not available with side by side
                   2318:   # diffs and may cause problems with older (< 2.8) versions of diffutils if
                   2319:   # used with --side-by-side.
                   2320:   if ($showfunc && $f !~ /^s/) {
                   2321:     push(@difftype, '-p');
                   2322:     while (my ($re1, $re2) = each %funcline_regexp) {
3.222     scop     2323:       if ($fullname =~ $re1) {
3.247     scop     2324:         push(@difftype, '-F', $re2);
3.120     scop     2325:         last;
                   2326:       }
                   2327:     }
                   2328:   }
                   2329:
                   2330:   if ($human_readable) {
3.247     scop     2331:     push(@difftype, '-w')  if $hr_ignwhite;
                   2332:     push(@difftype, '-kk') if $hr_ignkeysubst;
3.120     scop     2333:   }
                   2334:
3.175     scop     2335:   my $fh = do { local (*FH); };
3.120     scop     2336:   if (!open($fh, "-|")) {    # child
                   2337:     open(STDERR, ">&STDOUT");    # Redirect stderr to stdout
                   2338:     openOutputFilter();
3.166     scop     2339:     exec($CMD{rcsdiff}, @rcsdiff_options, @difftype, "-r$rev1", "-r$rev2",
                   2340:          $fullname) or exit -1;
3.120     scop     2341:   }
3.166     scop     2342:
3.120     scop     2343:   if ($human_readable) {
3.168     scop     2344:     #
                   2345:     # Human readable diff.
                   2346:     #
                   2347:     human_readable_diff($fh, $rev2);
                   2348:     html_footer();
                   2349:     gzipclose();
                   2350:     exit;
                   2351:
                   2352:   } elsif ($f =~ /^([ucs])c$/) {
                   2353:     #
                   2354:     # Enscript colored diff.
                   2355:     #
                   2356:     my $hl = 'diff';
                   2357:     $hl .= $1 if ($1 eq 'u' || $1 eq 's');
                   2358:     (my $where_nd = $where)       =~ s/\.diff$//;
3.262     scop     2359:     (my $pathname = $where_nd)    =~ s|((?<=/)Attic/)?[^/]*$||;
3.168     scop     2360:     (my $filename = $where_nd)    =~ s|^.*/||;
                   2361:     (my $swhere   = $scriptwhere) =~ s|\.diff$||;
                   2362:     navigateHeader($swhere, $pathname, $filename, $rev2, 'diff');
                   2363:     printf(<<EOF, $where_nd, $rev1, $rev2);
                   2364: <h3 style="text-align: center">Diff for /%s between versions %s and %s</h3>
                   2365: <pre>
                   2366: EOF
3.240     scop     2367:     doEnscript(\$fh, $hl, 0, 'cvsweb_diff');
3.168     scop     2368:     print <<EOF;
                   2369: </pre>
3.208     scop     2370: <hr style="width: 100%" />
3.168     scop     2371: <form method="get" action="$scriptwhere">
                   2372: EOF
                   2373:     printDiffSelectStickyVars();
                   2374:     print 'Diff format: ';
                   2375:     printDiffSelect($use_java_script);
3.208     scop     2376:     print "<input type=\"submit\" value=\"Show\" />\n</form>\n";
3.120     scop     2377:     html_footer();
                   2378:     gzipclose();
                   2379:     exit;
3.168     scop     2380:
3.120     scop     2381:   } else {
3.168     scop     2382:     #
                   2383:     # Plain diff.
                   2384:     #
3.120     scop     2385:     http_header("text/plain");
                   2386:   }
                   2387:
                   2388:   #
                   2389:   #===================================================================
                   2390:   #RCS file: /home/ncvs/src/sys/netinet/tcp_output.c,v
                   2391:   #retrieving revision 1.16
                   2392:   #retrieving revision 1.17
                   2393:   #diff -c -r1.16 -r1.17
                   2394:   #*** /home/ncvs/src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   2395:   #--- /home/ncvs/src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17
                   2396:   #
                   2397:   # Ideas:
                   2398:   # - nuke the stderr output if it's what we expect it to be
                   2399:   # - Add "no differences found" if the diff command supplied no output.
                   2400:   #
                   2401:   #*** src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   2402:   #--- src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17 RELENG_2_1_0
                   2403:   # (bogus example, but...)
                   2404:   #
3.175     scop     2405:   my ($f1, $f2);
3.120     scop     2406:   if (grep { $_ eq '-u' } @difftype) {
                   2407:     $f1 = '---';
                   2408:     $f2 = '\+\+\+';
                   2409:   } else {
                   2410:     $f1 = '\*\*\*';
                   2411:     $f2 = '---';
                   2412:   }
                   2413:
                   2414:   while (<$fh>) {
                   2415:     if (m|^$f1 $cvsroot|o) {
                   2416:       s|$cvsroot/||o;
                   2417:       if ($sym1) {
                   2418:         chop;
                   2419:         $_ .= " $sym1\n";
                   2420:       }
                   2421:     } elsif (m|^$f2 $cvsroot|o) {
                   2422:       s|$cvsroot/||o;
                   2423:
                   2424:       if ($sym2) {
                   2425:         chop;
                   2426:         $_ .= " $sym2\n";
                   2427:       }
                   2428:     }
                   2429:     print $_;
                   2430:   }
                   2431:   close($fh);
1.12      fenner   2432: }
                   2433:
3.175     scop     2434:
3.1       knu      2435: ###############################
                   2436: # Show Logs ..
                   2437: ###############################
3.120     scop     2438: sub getDirLogs($$@)
                   2439: {
                   2440:   my ($cvsroot, $dirname, @otherFiles) = @_;
3.139     scop     2441:   my $tag = $input{only_with_tag};
3.196     scop     2442:   my $DirName = catdir($cvsroot, $where);
3.120     scop     2443:
3.139     scop     2444:   my @files = &safeglob("$DirName/*,v");
3.254     scop     2445:   push (@files, &safeglob("$DirName/Attic/*,v")) unless $input{hideattic};
3.120     scop     2446:   foreach my $file (@otherFiles) {
3.196     scop     2447:     push(@files, catfile($DirName, $file));
3.120     scop     2448:   }
                   2449:
3.150     scop     2450:   # Weed out unreadable files.
                   2451:   my $i = 0;
                   2452:   my @unreadable = ();
                   2453:   while ($i < scalar(@files)) {
3.197     scop     2454:     # Note: last modified files from subdirs returned by
                   2455:     # findLastModifiedSubdirs() come without the ,v suffix so they're not
                   2456:     # found here, but have already been checked for readability.  *cough*
                   2457:     if (-r $files[$i] || !-e _) {
3.150     scop     2458:       $i++;
                   2459:     } else {
                   2460:       push(@unreadable, splice(@files, $i, 1));
                   2461:     }
                   2462:   }
                   2463:
3.139     scop     2464:   # If there are no files, we're done.
3.150     scop     2465:   return @unreadable unless @files;
3.120     scop     2466:
3.139     scop     2467:   my @cmd = ($CMD{rlog});
                   2468:   # Can't use -r<tag> as '-' is allowed in tagnames,
                   2469:   # but misinterpreted by rlog.
                   2470:   push(@cmd, '-r') unless defined($tag);
3.120     scop     2471:
3.139     scop     2472:   my $fh = do { local (*FH); };
3.273     scop     2473:   if (!open($fh, '-|')) {                       # Child
                   2474:     open(STDERR, '>', devnull()) unless $DEBUG; # Ignore rlog's complaints.
3.139     scop     2475:     openOutputFilter();
                   2476:     if ($file_list_len && $file_list_len > 1) {
                   2477:       while (scalar(@files) > $file_list_len) {  # Process files in chunks.
                   2478:         system(@cmd, splice(@files, 0, $file_list_len)) == 0 or exit -1;
                   2479:       }
3.120     scop     2480:     }
3.139     scop     2481:     exec(@cmd, @files) or exit -1;
                   2482:   }
                   2483:   undef @cmd;
3.120     scop     2484:
3.139     scop     2485:   my $state = 'start';
                   2486:   my ($date, $branchpoint, $branch, $log, @filetags);
3.152     scop     2487:   my ($rev, $revision, $revwanted, $filename, $head, $author, $keywordsubst);
3.120     scop     2488:
                   2489:   while (<$fh>) {
                   2490:     if ($state eq "start") {
                   2491:
                   2492:       #Next file. Initialize file variables
                   2493:       $rev         = '';
                   2494:       $revwanted   = '';
                   2495:       $branch      = '';
                   2496:       $branchpoint = '';
                   2497:       $filename    = '';
                   2498:       $log         = '';
                   2499:       $revision    = '';
                   2500:       %symrev      = ();
                   2501:       @filetags    = ();
3.152     scop     2502:       $keywordsubst= '';
3.120     scop     2503:
                   2504:       #jump to head state
                   2505:       $state = "head";
                   2506:     }
3.144     scop     2507:
3.120     scop     2508:     again:
                   2509:
                   2510:     if ($state eq "head") {
                   2511:
                   2512:       #$rcsfile = $1 if (/^RCS file: (.+)$/); #not used (yet)
                   2513:
                   2514:       if (/^Working file: (.+)$/) {
                   2515:         $filename = $1;
                   2516:       } elsif (/^head: (.+)$/) {
                   2517:         $head = $1;
                   2518:       } elsif (/^branch: (.+)$/) {
                   2519:         $branch = $1;
3.152     scop     2520:       } elsif (/^keyword substitution: (.+)$/) {
                   2521:         $keywordsubst = $1;
3.120     scop     2522:       } elsif (/^symbolic names:/) {
                   2523:         $state = "tags";
                   2524:         ($branch = $head) =~ s/\.\d+$//
                   2525:           if $branch eq '';
                   2526:         $branch =~ s/(\d+)$/0.$1/;
                   2527:         $symrev{MAIN}  = $branch;
                   2528:         $symrev{HEAD}  = $branch;
                   2529:         $alltags{MAIN} = 1;
                   2530:         $alltags{HEAD} = 1;
                   2531:         push (@filetags, "MAIN", "HEAD");
3.222     scop     2532:       } elsif ($_ =~ LOG_REVSEPR) {
3.120     scop     2533:         $state = "log";
                   2534:         $rev   = '';
                   2535:         $date  = '';
                   2536:         $log   = '';
                   2537:
                   2538:         # Try to reconstruct the relative filename if RCS spits out a full path
                   2539:         $filename =~ s%^\Q$DirName\E/%%;
                   2540:       }
                   2541:       next;
                   2542:     }
                   2543:
                   2544:     if ($state eq "tags") {
                   2545:       if (/^\s+([^:]+):\s+([\d\.]+)\s*$/) {
                   2546:         push (@filetags, $1);
                   2547:         $symrev{$1}  = $2;
                   2548:         $alltags{$1} = 1;
                   2549:         next;
                   2550:       } elsif (/^\S/) {
                   2551:
                   2552:         if (defined($tag)) {
                   2553:           if (defined($symrev{$tag}) || $tag eq "HEAD") {
                   2554:             $revwanted    = $symrev{$tag eq "HEAD" ? "MAIN" : $tag};
                   2555:             ($branch      = $revwanted) =~ s/\b0\.//;
                   2556:             ($branchpoint = $branch)    =~ s/\.?\d+$//;
                   2557:             $revwanted    = '' if ($revwanted ne $branch);
                   2558:           } elsif ($tag ne "HEAD") {
                   2559:             $state = "skip";
                   2560:             next;
                   2561:           }
                   2562:         }
                   2563:
                   2564:         foreach my $tagfound (@filetags) {
                   2565:           $tags{$tagfound} = 1;
                   2566:         }
                   2567:         $state = "head";
                   2568:         goto again;
                   2569:       }
                   2570:     }
                   2571:
                   2572:     if ($state eq "log") {
3.222     scop     2573:       if ($_ =~ LOG_REVSEPR || $_ =~ LOG_FILESEPR) {
3.120     scop     2574:
                   2575:         # End of a log entry.
                   2576:         my $revbranch = $rev;
                   2577:         $revbranch =~ s/\.\d+$//;
                   2578:
                   2579:         if ($revwanted eq '' && $branch ne '' && $branch eq $revbranch
                   2580:             || !defined($tag))
                   2581:         {
                   2582:           $revwanted = $rev;
                   2583:         }
                   2584:
                   2585:         if ($revwanted ne ''
                   2586:             ? $rev eq $revwanted
                   2587:             : $branchpoint ne ''
                   2588:               ? $rev eq $branchpoint
                   2589:               : 0
                   2590:             && ($rev eq $head))
                   2591:         {    # Don't think head is needed here..
3.152     scop     2592:           my @finfo = ($rev, $date, $log, $author, $filename, $keywordsubst);
                   2593:           (my $name = $filename) =~ s%/.*%%;
3.120     scop     2594:           $fileinfo{$name} = [@finfo];
                   2595:           $state = "done" if ($rev eq $revwanted);
                   2596:         }
                   2597:         $rev  = '';
                   2598:         $date = '';
                   2599:         $log  = '';
                   2600:       } elsif ($date eq ''
                   2601:                && m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);|)
                   2602:       {
3.172     scop     2603:         my $yr    = $1;
                   2604:         $yr      -= 1900 if ($yr > 100); # Damn 2-digit year routines :-)
                   2605:         $date     = timegm($6, $5, $4, $3, $2 - 1, $yr);
3.120     scop     2606:         ($author) = /author: ([^;]+)/;
3.172     scop     2607:         $state    = 'log';
                   2608:         $log      = '';
3.120     scop     2609:         next;
                   2610:       } elsif ($rev eq '' && /^revision (\d+(?:\.\d+)+).*$/) {
                   2611:         $rev = $1;    # .*$ eats up the locker(lockers?) info, if any
                   2612:         next;
                   2613:       } else {
                   2614:         $log .= $_;
                   2615:       }
                   2616:     }
                   2617:
3.222     scop     2618:     if ($_ =~ LOG_FILESEPR) {
3.120     scop     2619:       $state = "start";
                   2620:       next;
                   2621:     }
                   2622:   }
                   2623:
3.139     scop     2624:   my $linesread = $. || 0;
                   2625:   close($fh);
                   2626:
                   2627:   if ($linesread == 0) {
3.137     scop     2628:     fatal('500 Internal Error',
3.230     scop     2629:           'Failed to spawn GNU rlog on <em>"%s"</em>.<br /><br />Did you set the <b><code>@command_path</code></b> in your configuration file correctly? (Currently: "<code>%s</code>")',
                   2630:           htmlquote(join(', ', @files)), join(':', @command_path));
3.120     scop     2631:   }
3.150     scop     2632:
                   2633:   return @unreadable;
3.120     scop     2634: }
                   2635:
3.175     scop     2636:
3.120     scop     2637: sub readLog($;$)
                   2638: {
                   2639:   my ($fullname, $revision) = @_;
                   2640:   my ($symnames, $head, $rev, $br, $brp, $branch, $branchrev);
                   2641:
                   2642:   undef %symrev;
                   2643:   undef %revsym;
                   2644:   undef @allrevisions;
                   2645:   undef %date;
                   2646:   undef %author;
                   2647:   undef %state;
                   2648:   undef %difflines;
                   2649:   undef %log;
3.152     scop     2650:   $keywordsubstitution = '';
3.120     scop     2651:
3.175     scop     2652:   my $fh = do { local (*FH); };
3.120     scop     2653:   if (!open($fh, "-|")) {    # child
3.275     scop     2654:     openOutputFilter();
                   2655:     $revision = defined($revision) ? "-r$revision" : '';
                   2656:     if ($revision =~ /\./) {
                   2657:       # Normal revision, not a branch/tag name.
3.120     scop     2658:       exec($CMD{rlog}, $revision, $fullname) or exit -1;
                   2659:     } else {
                   2660:       exec($CMD{rlog}, $fullname) or exit -1;
                   2661:     }
                   2662:   }
                   2663:
3.217     scop     2664:   my $curbranch = undef;
3.120     scop     2665:   while (<$fh>) {
                   2666:     if ($symnames) {
                   2667:       if (/^\s+([^:]+):\s+([\d\.]+)/) {
                   2668:         $symrev{$1} = $2;
3.152     scop     2669:         next;
3.120     scop     2670:       } else {
                   2671:         $symnames = 0;
                   2672:       }
3.152     scop     2673:     }
                   2674:     if (/^head:\s+([\d\.]+)/) {
3.120     scop     2675:       $head = $1;
                   2676:     } elsif (/^branch:\s+([\d\.]+)/) {
                   2677:       $curbranch = $1;
                   2678:     } elsif (/^symbolic names/) {
                   2679:       $symnames = 1;
3.152     scop     2680:     } elsif (/^keyword substitution: (.+)$/) {
                   2681:       $keywordsubstitution = $1;
3.120     scop     2682:     } elsif (/^-----/) {
                   2683:       last;
                   2684:     }
                   2685:   }
                   2686:   ($curbranch = $head) =~ s/\.\d+$// if (!defined($curbranch));
                   2687:
                   2688:   # each log entry is of the form:
                   2689:   # ----------------------------
                   2690:   # revision 3.7.1.1
                   2691:   # date: 1995/11/29 22:15:52;  author: fenner;  state: Exp;  lines: +5 -3
                   2692:   # log info
                   2693:   # ----------------------------
                   2694:
                   2695:   # For a locked revision, the first line after the separator
                   2696:   # becomes smth like
3.149     scop     2697:   # revision 9.19       locked by: vassilii;
3.120     scop     2698:
                   2699:   logentry:
                   2700:
3.222     scop     2701:   while ($_ !~ LOG_FILESEPR) {
3.120     scop     2702:     $_ = <$fh>;
                   2703:     last logentry if (!defined($_));    # EOF
                   2704:     if (/^revision (\d+(?:\.\d+)+)/) {
                   2705:       $rev = $1;
3.261     scop     2706:       unshift(@allrevisions, $rev);
3.222     scop     2707:     } elsif ($_ =~ LOG_FILESEPR || $_ =~ LOG_REVSEPR) {
3.120     scop     2708:       next logentry;
                   2709:     } else {
                   2710:
                   2711:       # The rlog output is syntactically ambiguous.  We must
                   2712:       # have guessed wrong about where the end of the last log
                   2713:       # message was.
                   2714:       # Since this is likely to happen when people put rlog output
                   2715:       # in their commit messages, don't even bother keeping
                   2716:       # these lines since we don't know what revision they go with
                   2717:       # any more.
                   2718:       next logentry;
                   2719:     }
                   2720:     $_ = <$fh>;
                   2721:     if (
                   2722:       m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);\s+author:\s+(\S+);\s+state:\s+(\S+);\s+(lines:\s+([0-9\s+-]+))?|
                   2723:       )
                   2724:     {
3.172     scop     2725:       my $yr           = $1;
                   2726:       $yr             -= 1900 if ($yr > 100); # Damn 2-digit year routines :-)
                   2727:       $date{$rev}      = timegm($6, $5, $4, $3, $2 - 1, $yr);
3.120     scop     2728:       $author{$rev}    = $7;
                   2729:       $state{$rev}     = $8;
                   2730:       $difflines{$rev} = $10;
                   2731:     } else {
                   2732:       fatal("500 Internal Error", 'Error parsing RCS output: %s', $_);
                   2733:     }
                   2734:
                   2735:   line:
                   2736:     while (<$fh>) {
                   2737:       next line if (/^branches:\s/);
3.222     scop     2738:       last line if ($_ =~ LOG_FILESEPR || $_ =~ LOG_REVSEPR);
3.120     scop     2739:       $log{$rev} .= $_;
                   2740:     }
                   2741:   }
                   2742:   close($fh);
                   2743:
                   2744:   @revorder = reverse sort { revcmp($a, $b) } @allrevisions;
                   2745:
                   2746:   #
                   2747:   # HEAD is an artificial tag which is simply the highest tag number on the main
                   2748:   # branch, unless there is a branch tag in the RCS file in which case it's the
                   2749:   # highest revision on that branch.  Find it by looking through @revorder; it
                   2750:   # is the first commit listed on the appropriate branch.
                   2751:   # This is not neccesary the same revision as marked as head in the RCS file.
                   2752:   my $headrev = $curbranch || "1";
3.254     scop     2753:   ($symrev{MAIN} = $headrev) =~ s/(\d+)$/0.$1/;
3.120     scop     2754:
                   2755:   foreach $rev (@revorder) {
                   2756:     if ($rev =~ /^(\S*)\.\d+$/ && $headrev eq $1) {
3.254     scop     2757:       $symrev{HEAD} = $rev;
3.120     scop     2758:       last;
                   2759:     }
                   2760:   }
3.254     scop     2761:   ($symrev{HEAD} = $headrev) =~ s/\.\d+$// unless defined($symrev{HEAD});
3.120     scop     2762:
                   2763:   #
                   2764:   # Now that we know all of the revision numbers, we can associate
                   2765:   # absolute revision numbers with all of the symbolic names, and
                   2766:   # pass them to the form so that the same association doesn't have
                   2767:   # to be built then.
                   2768:   #
                   2769:   undef @branchnames;
                   2770:   undef %branchpoint;
                   2771:   undef $sel;
                   2772:
                   2773:   foreach (reverse sort keys %symrev) {
                   2774:     $rev = $symrev{$_};
                   2775:     if ($rev =~ /^((.*)\.)?\b0\.(\d+)$/) {
                   2776:       push (@branchnames, $_);
                   2777:
                   2778:       #
                   2779:       # A revision number of A.B.0.D really translates into
                   2780:       # "the highest current revision on branch A.B.D".
                   2781:       #
                   2782:       # If there is no branch A.B.D, then it translates into
                   2783:       # the head A.B .
                   2784:       #
                   2785:       # This reasoning also applies to the main branch A.B,
                   2786:       # with the branch number 0.A, with the exception that
                   2787:       # it has no head to translate to if there is nothing on
                   2788:       # the branch, but I guess this can never happen?
                   2789:       #
                   2790:       # (the code below gracefully forgets about the branch
                   2791:       # if it should happen)
                   2792:       #
                   2793:       $head = defined($2) ? $2 : "";
                   2794:       $branch = $3;
                   2795:       $branchrev = $head . ($head ne "" ? "." : "") . $branch;
3.222     scop     2796:       $rev = $head;
                   2797:
                   2798:       my $regex = '^' . quotemeta($branchrev) . '\b';
                   2799:       $regex = qr/$regex/;
3.120     scop     2800:
                   2801:       foreach my $r (@revorder) {
3.222     scop     2802:         if ($r =~ $regex) {
3.120     scop     2803:           $rev = $branchrev;
                   2804:           last;
                   2805:         }
                   2806:       }
                   2807:       next if ($rev eq "");
                   2808:
                   2809:       if ($rev ne $head && $head ne "") {
3.131     scop     2810:         $branchpoint{$head} .= ', ' if ($branchpoint{$head});
3.120     scop     2811:         $branchpoint{$head} .= $_;
                   2812:       }
                   2813:     }
                   2814:     $revsym{$rev} .= ", " if ($revsym{$rev});
                   2815:     $revsym{$rev} .= $_;
3.136     scop     2816:     $sel .= sprintf("<option value=\"%s:%s\">%s</option>\n",
                   2817:                     htmlquote($rev), (htmlquote($_)) x 2);
3.120     scop     2818:   }
                   2819:
                   2820:   my ($onlyonbranch, $onlybranchpoint);
3.254     scop     2821:   if ($onlyonbranch = $input{only_with_tag}) {
3.120     scop     2822:     $onlyonbranch = $symrev{$onlyonbranch};
3.275     scop     2823:     if ($onlyonbranch && $onlyonbranch =~ s/\b0\.//) {
3.120     scop     2824:       ($onlybranchpoint = $onlyonbranch) =~ s/\.\d+$//;
                   2825:     } else {
                   2826:       $onlybranchpoint = $onlyonbranch;
                   2827:     }
                   2828:
                   2829:     if (!defined($onlyonbranch) || $onlybranchpoint eq "") {
3.275     scop     2830:       fatal("404 Tag not found", 'Tag "<code>%s</code>" is not defined.',
3.254     scop     2831:             $input{only_with_tag});
3.120     scop     2832:     }
                   2833:   }
                   2834:
                   2835:   undef @revisions;
                   2836:
                   2837:   foreach (@allrevisions) {
                   2838:     ($br  = $_)  =~ s/\.\d+$//;
                   2839:     ($brp = $br) =~ s/\.\d+$//;
                   2840:     next if ($onlyonbranch
                   2841:              && $br ne $onlyonbranch
                   2842:              && $_  ne $onlybranchpoint);
3.261     scop     2843:     unshift(@revisions, $_);
3.120     scop     2844:   }
                   2845:
                   2846:   if ($logsort eq "date") {
                   2847:
                   2848:     # Sort the revisions in commit order an secondary sort on revision
                   2849:     # (secondary sort needed for imported sources, or the first main
                   2850:     # revision gets before the same revision on the 1.1.1 branch)
                   2851:     @revdisplayorder =
                   2852:       sort { $date{$b} <=> $date{$a} || -revcmp($a, $b) } @revisions;
                   2853:   } elsif ($logsort eq "rev") {
                   2854:
                   2855:     # Sort the revisions in revision order, highest first
                   2856:     @revdisplayorder = reverse sort { revcmp($a, $b) } @revisions;
                   2857:   } else {
                   2858:
                   2859:     # No sorting. Present in the same order as rlog / cvs log
                   2860:     @revdisplayorder = @revisions;
                   2861:   }
                   2862:
3.217     scop     2863:   return $curbranch;
3.120     scop     2864: }
                   2865:
3.175     scop     2866:
3.225     scop     2867: sub getDiffLinks($$$)
3.120     scop     2868: {
3.225     scop     2869:   my ($url, $mimetype, $isbin) = @_;
                   2870:
                   2871:   my @links = ();
                   2872:   if (!$isbin) { # Offer ordinary diff only for non-binary files.
                   2873:     push(@links, &link('preferred', $url));
                   2874:     for my $difftype ($DIFFTYPES{$defaultDiffType}{colored} ? qw(u) : qw(h)) {
                   2875:       my $f = $difftype eq $defaultDiffType ? '' : $difftype;
                   2876:       push(@links,
                   2877:            &link(htmlquote(lc($DIFFTYPES{$difftype}{descr})), "$url;f=$f"));
                   2878:     }
                   2879:   }
                   2880:   if (my $extdiffs = $DIFF_COMMANDS{lc($mimetype)}) {
                   2881:     for my $i (0 .. scalar(@$extdiffs)-1) {
                   2882:       my $extdiff = $extdiffs->[$i];
                   2883:       push(@links, &link(htmlquote($extdiff->{name}), "$url;f=ext$i"))
                   2884:         if ($extdiff->{cmd} && $extdiff->{name});
                   2885:     }
3.120     scop     2886:   }
3.225     scop     2887:   return @links;
3.120     scop     2888: }
                   2889:
3.175     scop     2890:
3.219     scop     2891: sub printLog($$$;$$)
3.120     scop     2892: {
3.219     scop     2893:   # inlogview: 1 if in log view, otherwise in markup view.
                   2894:   ($_, my $mimetype, my $isbin, my $inlogview, my $isSelected) = @_;
3.175     scop     2895:   (my $br  = $_)  =~ s/\.\d+$//;
                   2896:   (my $brp = $br) =~ s/\.?\d+$//;
3.120     scop     2897:
3.219     scop     2898:   print "<a name=\"rev$_\"></a>";
                   2899:   if (defined($revsym{$_})) {
3.261     scop     2900:     foreach my $sym (split(", ", $revsym{$_})) {
3.271     scop     2901:       print '<a name="', htmlquote($sym), '"></a>';
3.120     scop     2902:     }
3.219     scop     2903:   }
                   2904:   if ($revsym{$br} && !defined($nameprinted{$br})) {
3.261     scop     2905:     foreach my $sym (split(", ", $revsym{$br})) {
3.271     scop     2906:       print '<a name="', htmlquote($sym), '"></a>';
3.120     scop     2907:     }
3.219     scop     2908:     $nameprinted{$br} = 1;
                   2909:   }
3.120     scop     2910:
3.271     scop     2911:   print "\n Revision <b>$_</b>";
3.219     scop     2912:   if (/^1\.1\.1\.\d+$/) {
                   2913:     print " <i>(vendor branch)</i>";
                   2914:   }
3.261     scop     2915:
3.271     scop     2916:   (my $filename = $where) =~ s|^.*/||;
                   2917:   my $fileurl   = uri_escape($filename);
                   2918:   undef $filename;
                   2919:
3.261     scop     2920:   my $isDead = ($state{$_} eq 'dead');
3.219     scop     2921:   if (!$isDead) {
3.261     scop     2922:
3.220     scop     2923:     print ': ', download_link($fileurl, $_, 'download', $mimetype);
3.219     scop     2924:
                   2925:     my @vlinks = ();
                   2926:     push(@vlinks, display_link($fileurl, $_, 'text', 'text/plain'))
                   2927:       unless $isbin;
                   2928:     push(@vlinks, display_link($fileurl, $_, 'markup', 'text/x-cvsweb-markup'))
                   2929:       if ($allow_markup && $inlogview && (!$isbin || viewable($mimetype)));
3.268     scop     2930:     if (!$isbin && $allow_annotate) {
3.219     scop     2931:       push(@vlinks,
                   2932:            &link('annotated',
3.271     scop     2933:                  sprintf('%s?annotate=%s%s', $fileurl, $_, $barequery)));
3.219     scop     2934:     }
                   2935:     print ' - view: ', join(', ', @vlinks) if @vlinks;
                   2936:     undef @vlinks;
                   2937:
3.243     scop     2938:     if (!$isbin && $allow_version_select) {
                   2939:       print ' - ';
                   2940:       if ($isSelected) {
                   2941:         print '<b>[selected&nbsp;for&nbsp;diffs]</b>';
                   2942:       } else {
                   2943:         print &link('select&nbsp;for&nbsp;diffs',
                   2944:                     sprintf('%s?r1=%s%s#rev%s',
3.271     scop     2945:                             $fileurl, $_, $barequery, $_));
3.120     scop     2946:       }
                   2947:     }
3.243     scop     2948:     print ' - ', graph_link('', 'revision graph')
                   2949:       if (!$inlogview && $allow_cvsgraph);
3.120     scop     2950:   }
3.219     scop     2951:   print "<br />\n";
3.120     scop     2952:
3.219     scop     2953:   print '<i>';
3.120     scop     2954:   if (defined @mytz) {
                   2955:     my ($est) = $mytz[(localtime($date{$_}))[8]];
3.219     scop     2956:     print scalar localtime($date{$_}), " $est</i> (";
3.120     scop     2957:   } else {
3.219     scop     2958:     print scalar gmtime($date{$_}), " UTC</i> (";
3.120     scop     2959:   }
3.136     scop     2960:   print readableTime(time() - $date{$_}, 1), ' ago)';
3.208     scop     2961:   print ' by <i>', htmlquote($author{$_}), "</i><br />\n";
3.136     scop     2962:
3.243     scop     2963:   printf("Branches: %s<br />\n", link_tags($revsym{$br})) if $revsym{$br};
                   2964:   printf("CVS tags: %s<br />\n", link_tags($revsym{$_}))  if $revsym{$_};
                   2965:   printf("Branch point for: %s<br />\n", link_tags($branchpoint{$_}))
                   2966:     if $branchpoint{$_};
3.120     scop     2967:
                   2968:   # Find the previous revision
3.175     scop     2969:   my $prev;
3.261     scop     2970:   my @prevrev = split(/\./, $_);
3.120     scop     2971:   do {
                   2972:     if (--$prevrev[$#prevrev] <= 0) {
                   2973:
                   2974:       # If it was X.Y.Z.1, just make it X.Y
                   2975:       pop (@prevrev);
                   2976:       pop (@prevrev);
                   2977:     }
                   2978:     $prev = join (".", @prevrev);
                   2979:   } until (defined($date{$prev}) || $prev eq "");
                   2980:
                   2981:   if ($isDead) {
3.219     scop     2982:     print "<b><i>FILE REMOVED</i></b><br />\n";
3.243     scop     2983:   } else {
3.120     scop     2984:     my %diffrev = ();
                   2985:     $diffrev{$_} = 1;
                   2986:     $diffrev{""} = 1;
                   2987:     my $diff = 'Diff';
3.219     scop     2988:     my $printed = 0;
3.120     scop     2989:
                   2990:     #
                   2991:     # Offer diff to previous revision
                   2992:     if ($prev) {
                   2993:       $diffrev{$prev} = 1;
                   2994:       my $url =
3.271     scop     2995:         sprintf('%s.diff?r1=%s;r2=%s%s', $fileurl, $prev, $_, $barequery);
3.225     scop     2996:       if (my @dlinks = getDiffLinks($url, $mimetype, $isbin)) {
                   2997:         print $diff, ' to previous ', $prev, ': ', join(', ', @dlinks);
                   2998:         $diff = ''; $printed = 1;
                   2999:       }
3.120     scop     3000:     }
                   3001:
                   3002:     #
                   3003:     # Plus, if it's on a branch, and it's not a vendor branch,
                   3004:     # offer a diff with the branch point.
                   3005:     if ($revsym{$brp}
                   3006:       && !/^1\.1\.1\.\d+$/
                   3007:       && !defined($diffrev{$brp}))
                   3008:     {
                   3009:       my $url =
3.271     scop     3010:         sprintf('%s.diff?r1=%s;r2=%s%s', $fileurl, $brp, $_, $barequery);
3.225     scop     3011:       if (my @dlinks = getDiffLinks($url, $mimetype, $isbin)) {
                   3012:         print $diff, ' to branchpoint ', $brp, ': ', join(', ', @dlinks);
                   3013:         $diff = ''; $printed = 1;
                   3014:       }
3.120     scop     3015:     }
                   3016:
                   3017:     #
                   3018:     # Plus, if it's on a branch, and it's not a vendor branch,
                   3019:     # offer to diff with the next revision of the higher branch.
                   3020:     # (e.g. change gets committed and then brought
                   3021:     # over to -stable)
                   3022:     if (/^\d+\.\d+\.\d+/ && !/^1\.1\.1\.\d+$/) {
                   3023:       my ($i, $nextmain);
                   3024:
                   3025:       for ($i = 0; $i < $#revorder && $revorder[$i] ne $_; $i++) {
                   3026:       }
3.261     scop     3027:       my @tmp2 = split(/\./, $_);
3.120     scop     3028:       for ($nextmain = ""; $i > 0; $i--) {
                   3029:         my $next = $revorder[$i - 1];
3.261     scop     3030:         my @tmp1 = split(/\./, $next);
3.120     scop     3031:
                   3032:         if (@tmp1 < @tmp2) {
                   3033:           $nextmain = $next;
                   3034:           last;
                   3035:         }
                   3036:
                   3037:         # Only the highest version on a branch should have
                   3038:         # a diff for the "next main".
                   3039:         last
                   3040:           if (@tmp1 - 1 <= @tmp2
                   3041:           && join (".", @tmp1[0 .. $#tmp1 - 1]) eq
                   3042:           join (".", @tmp2[0 .. $#tmp1 - 1]));
                   3043:       }
                   3044:
                   3045:       if (!defined($diffrev{$nextmain})) {
                   3046:         $diffrev{$nextmain} = 1;
3.203     scop     3047:         my $url = sprintf('%s.diff?r1=%s;r2=%s%s',
3.271     scop     3048:           $fileurl, $nextmain, $_, $barequery);
3.225     scop     3049:         if (my @dlinks = getDiffLinks($url, $mimetype, $isbin)) {
                   3050:           print $diff, ' next main ', $nextmain, ': ', join(', ', @dlinks);
                   3051:           $diff = ''; $printed = 1;
                   3052:         }
3.120     scop     3053:       }
                   3054:     }
                   3055:
                   3056:     # Plus if user has selected only r1, then present a link
                   3057:     # to make a diff to that revision
3.254     scop     3058:     if (defined($input{r1}) && !defined($diffrev{$input{r1}})) {
                   3059:       $diffrev{$input{r1}} = 1;
3.203     scop     3060:       my $url = sprintf('%s.diff?r1=%s;r2=%s%s',
3.271     scop     3061:         $fileurl, $input{r1}, $_, $barequery);
3.225     scop     3062:       if (my @dlinks = getDiffLinks($url, $mimetype, $isbin)) {
                   3063:         print $diff, ' to selected ', $input{r1}, ': ', join(', ', @dlinks);
                   3064:         $diff = ''; $printed = 1;
                   3065:       }
3.120     scop     3066:     }
                   3067:
3.219     scop     3068:     print "<br />\n" if $printed;
                   3069:   }
                   3070:
                   3071:   if ($prev ne "" && $difflines{$_}) {
                   3072:     printf "Changes since revision %s: %s lines<br />\n",
                   3073:       htmlquote($prev), htmlquote($difflines{$_});
3.120     scop     3074:   }
3.189     scop     3075:
3.219     scop     3076:   print "<pre class=\"log\">\n";
3.120     scop     3077:   print &htmlify($log{$_}, $allow_log_extra);
                   3078:   print "</pre>\n";
                   3079: }
                   3080:
3.175     scop     3081:
3.132     scop     3082: #
                   3083: # Generates the HTML view for CvsGraph.
                   3084: #
3.170     scop     3085: sub doGraphView()
3.132     scop     3086: {
                   3087:   (my $pathname = $where) =~ s|[^/]*$||;
                   3088:   (my $filename = $where) =~ s|^.*/||;
                   3089:
3.170     scop     3090:   navigateHeader($scriptwhere, $pathname, $filename, undef, 'graph');
3.132     scop     3091:
3.146     scop     3092:   my $title = 'Revision graph of ' . htmlquote($pathname . $filename);
3.132     scop     3093:   my $mapname = 'CvsGraphMap';
                   3094:
3.170     scop     3095:   printf(<<EOF, $title, $mapname, $cvstree, $title);
3.146     scop     3096: <h3 style="text-align: center">%s</h3>
3.219     scop     3097: <div style="text-align: center"><img border="0" usemap="#%s" src="?cvsroot=%s;graph=1;makeimage=1" alt="%s" />
3.146     scop     3098: EOF
3.132     scop     3099:
3.255     scop     3100:   # Remove any pre-existing tag/branch names from branch links.
3.271     scop     3101:   (my $notag_query = $barequery) =~ s/;+only_with_tag=.*?(?=;|$)//g;
3.255     scop     3102:
3.135     scop     3103:   my @graph_cmd =
                   3104:     ($CMD{cvsgraph},
                   3105:      '-r', $cvsroot,
3.249     scop     3106:      '-m', $pathname,
3.135     scop     3107:      '-i',
                   3108:      '-M', $mapname,
3.208     scop     3109:      '-x', 'x',
3.271     scop     3110:      "-Omap_branch_href=\"href=\\\"./?only_with_tag=%(%t%)$notag_query\\\"\"",
                   3111:      "-Omap_rev_href=\"href=\\\"?rev=%(%R%)$barequery\\\"\"",
3.146     scop     3112:      "-Omap_diff_href=\"href=\\\"%(%F%).diff" .
3.271     scop     3113:      "?r1=%(%P%);r2=%(%R%)$barequery\\\"\"",
3.135     scop     3114:      );
3.132     scop     3115:   push(@graph_cmd, '-c', $cvsgraph_config) if $cvsgraph_config;
3.249     scop     3116:   push(@graph_cmd, $filename . ',v');
3.132     scop     3117:
3.174     scop     3118:   local *CVSGRAPH_OUT;
                   3119:   my ($h, $err) =
3.229     scop     3120:     startproc(\@graph_cmd, \"", '>pipe', \*CVSGRAPH_OUT);
3.174     scop     3121:   fatal('500 Internal Error', $err) unless $h;
3.242     scop     3122:
                   3123:   # Browser compatibility kludge: many browsers do not support client side
                   3124:   # image maps where the <map> element contains only the id attribute.  Let's
                   3125:   # add the corresponding name attribute to it on the fly.
                   3126:   while (<CVSGRAPH_OUT>) {
                   3127:     s/(<map\s+id="([^"]+)")\s*>/$1 name="$2">/;
                   3128:     print;
3.132     scop     3129:   }
3.242     scop     3130:
3.229     scop     3131:   $h->finish();
3.219     scop     3132:   print "</div>\n";
3.132     scop     3133:
                   3134:   html_footer();
                   3135: }
                   3136:
3.175     scop     3137:
3.132     scop     3138: #
                   3139: # Generates a graph using CvsGraph.
                   3140: #
3.170     scop     3141: sub doGraph()
3.132     scop     3142: {
                   3143:   (my $pathname = $where) =~ s|[^/]*$||;
                   3144:   (my $filename = $where) =~ s|^.*/||;
                   3145:
                   3146:   http_header('image/png');
                   3147:
3.249     scop     3148:   my @graph_cmd = ($CMD{cvsgraph}, '-r', $cvsroot, '-m', $pathname);
3.132     scop     3149:   push(@graph_cmd, '-c', $cvsgraph_config) if $cvsgraph_config;
3.249     scop     3150:   push(@graph_cmd, $filename . ',v');
3.132     scop     3151:
3.174     scop     3152:   local *CVSGRAPH_OUT;
                   3153:   my ($h, $err) =
3.229     scop     3154:     startproc(\@graph_cmd, \"", '>pipe', \*CVSGRAPH_OUT);
3.174     scop     3155:   fatal('500 Internal Error', $err) unless $h;
3.132     scop     3156:   {
                   3157:     local $/ = undef;
                   3158:     binmode(\*STDOUT);
3.174     scop     3159:     print <CVSGRAPH_OUT>;
3.132     scop     3160:   }
3.229     scop     3161:   $h->finish();
3.132     scop     3162: }
                   3163:
                   3164:
3.120     scop     3165: sub doLog($)
                   3166: {
                   3167:   my ($fullname) = @_;
                   3168:
3.217     scop     3169:   my $curbranch = readLog($fullname);
3.120     scop     3170:
                   3171:   html_header("CVS log for $where");
3.144     scop     3172:
3.271     scop     3173:   my $upwhere = $where;
3.144     scop     3174:   (my $filename = $where) =~ s|^.*/||;
3.271     scop     3175:   my $backurl = "./$query#" . uri_escape($filename);
                   3176:   if ($where =~ m|^(.*?)((?<=/)Attic/)?[^/]+$|) {
                   3177:     $upwhere = $1;
                   3178:     $backurl = ".$backurl" if $2; # skip over Attic
                   3179:   }
3.144     scop     3180:
3.219     scop     3181:   my $isbin = $keywordsubstitution =~ /b/;
                   3182:   my $mimetype = getMimeType($filename, $isbin);
                   3183:
3.120     scop     3184:   print "<p>\n ";
3.271     scop     3185:   print &link($backicon, $backurl), " <b>Up to ",
3.120     scop     3186:     &clickablePath($upwhere, 1), "</b>\n</p>\n";
                   3187:   print "<p>\n ";
                   3188:   print &link('Request diff between arbitrary revisions', '#diff');
3.268     scop     3189:   print ' - ', &graph_link('', 'Display revisions graphically')
                   3190:     if $allow_cvsgraph;
3.258     scop     3191:   if ($cvshistory_url) {
                   3192:     (my $d = $upwhere) =~ s|/+$||;
                   3193:     print ' - ', history_link($d, $filename);
                   3194:   }
3.208     scop     3195:   print "\n</p>\n<hr />\n";
3.120     scop     3196:
                   3197:   print "<p>\n";
3.152     scop     3198:
3.219     scop     3199:   my $explain = $isbin ? ' (i.e.: CVS considers this a binary file)' : '';
3.208     scop     3200:   print "Keyword substitution: $keywordsubstitution$explain<br />\n";
3.217     scop     3201:   if ($curbranch) {
                   3202:     print "Default branch: ", ($revsym{$curbranch} || $curbranch);
                   3203:   } else {
                   3204:     print "No default branch";
                   3205:   }
3.208     scop     3206:   print "<br />\n";
3.120     scop     3207:
3.208     scop     3208:   print 'Current tag: ', htmlquote($input{only_with_tag}), "<br />\n"
3.153     scop     3209:     if $input{only_with_tag};
3.120     scop     3210:   print "</p>\n";
                   3211:
                   3212:   undef %nameprinted;
                   3213:
3.182     scop     3214:   for my $r (@revdisplayorder) {
3.208     scop     3215:     print "<hr />\n";
3.182     scop     3216:     my $sel = (defined($input{r1}) && $input{r1} eq $r);
                   3217:     print "<div class=\"diff-selected\">\n" if $sel;
3.219     scop     3218:     printLog($r, $mimetype, $isbin, 1, $sel);
3.182     scop     3219:     print "</div>\n" if $sel;
3.120     scop     3220:   }
                   3221:
3.144     scop     3222:   printf(<<EOF, $scriptwhere);
3.208     scop     3223: <hr />
                   3224: <form method="get" action="%s.diff" id="diff_select">
3.189     scop     3225: <fieldset>
                   3226: <legend>Diff request</legend>
3.144     scop     3227: <p>
                   3228:  <a name="diff">
3.189     scop     3229:   This form allows you to request diffs between any two revisions of a file.
3.144     scop     3230:   You may select a symbolic revision name using the selection box or you may
                   3231:   type in a numeric name using the type-in text box.
                   3232:  </a>
                   3233: </p>
                   3234: EOF
3.120     scop     3235:
                   3236:   foreach (@stickyvars) {
3.208     scop     3237:     printf("<input type=\"hidden\" name=\"%s\" value=\"%s\" />\n",
3.154     scop     3238:            $_, htmlquote($input{$_}))
3.194     scop     3239:       if (defined($input{$_}) &&
                   3240:           (!defined($DEFAULTVALUE{$_}) || $input{$_} ne $DEFAULTVALUE{$_}));
3.120     scop     3241:   }
3.144     scop     3242:
                   3243:   print <<EOF;
3.189     scop     3244: <table summary="Diff between arbitrary revisions">
3.144     scop     3245: <tr>
3.189     scop     3246: <td class="opt-label">
                   3247: <label for="r1" accesskey="1">Diffs between</label>
                   3248: </td>
                   3249: <td class="opt-value">
3.144     scop     3250: <select id="r1" name="r1">
3.208     scop     3251: <option value="text" selected="selected">Use Text Field</option>
3.144     scop     3252: EOF
                   3253:   print $sel, "</select>\n";
                   3254:
                   3255:   my $diffrev = defined($input{r1}) ?
                   3256:     $input{r1} : $revdisplayorder[$#revdisplayorder];
                   3257:
                   3258:   printf(<<EOF, $inputTextSize, $diffrev);
3.208     scop     3259: <input type="text" size="%s" name="tr1" value="%s" onchange="this.form.r1.selectedIndex=0" />
3.144     scop     3260: </td>
3.189     scop     3261: <td></td>
                   3262: </tr>
                   3263: <tr>
                   3264: <td class="opt-label">
                   3265: <label for="r2" accesskey="2">and</label>
                   3266: </td>
                   3267: <td class="opt-value">
3.144     scop     3268: <select id="r2" name="r2">
3.208     scop     3269: <option value="text" selected="selected">Use Text Field</option>
3.144     scop     3270: EOF
                   3271:   print $sel, "</select>\n";
                   3272:
                   3273:   $diffrev = defined($input{r2}) ? $input{r2} : $revdisplayorder[0];
                   3274:
                   3275:   printf(<<EOF, $inputTextSize, $diffrev, $scriptwhere);
3.208     scop     3276: <input type="text" size="%s" name="tr2" value="%s" onchange="this.form.r2.selectedIndex=0" />
3.144     scop     3277: </td>
3.208     scop     3278: <td><input type="submit" value="Get Diffs" accesskey="G" /></td>
3.144     scop     3279: </tr>
                   3280: </table>
3.189     scop     3281: </fieldset>
3.144     scop     3282: </form>
                   3283: <form method="get" action="%s">
3.189     scop     3284: <fieldset>
                   3285: <legend>Log view options</legend>
                   3286: <table summary="Log view options">
3.144     scop     3287: <tr>
3.189     scop     3288: <td class="opt-label">
                   3289: <label for="f" accesskey="D">Preferred diff type:</label>
                   3290: </td>
                   3291: <td class="opt-value">
3.144     scop     3292: EOF
3.120     scop     3293:   printDiffSelect($use_java_script);
3.144     scop     3294:   print <<EOF;
3.189     scop     3295: </td>
                   3296: <td></td>
3.144     scop     3297: </tr>
                   3298: EOF
3.120     scop     3299:
                   3300:   if (@branchnames) {
3.144     scop     3301:
                   3302:     printf(<<EOF, $use_java_script ? ' onchange="this.form.submit()"' : '');
                   3303: <tr>
3.189     scop     3304: <td class="opt-label">
3.188     scop     3305: <label for="only_with_tag" accesskey="B">View only branch:</label>
3.189     scop     3306: </td>
                   3307: <td class="opt-value">
                   3308: <a name="branch">
3.144     scop     3309: <select id="only_with_tag" name="only_with_tag"%s>
                   3310: EOF
3.120     scop     3311:
3.193     scop     3312:     my @tmp = ();
                   3313:     my $selfound = 0;
3.120     scop     3314:     foreach (reverse sort @branchnames) {
3.136     scop     3315:       my $selected =
3.254     scop     3316:         (defined($input{only_with_tag}) && $input{only_with_tag} eq $_);
3.193     scop     3317:       $selfound ||= $selected;
                   3318:       push(@tmp, sprintf('<option%s>%s</option>',
3.208     scop     3319:                          $selected ? ' selected="selected"' : '',
3.193     scop     3320:                          htmlquote($_)));
3.120     scop     3321:     }
3.193     scop     3322:     printf("<option value=\"\"%s>Show all branches</option>\n",
3.208     scop     3323:            $selfound ? '' : ' selected="selected"');
3.193     scop     3324:     print join("\n", @tmp);
                   3325:
3.144     scop     3326:     print <<EOF
                   3327: </select>
3.189     scop     3328: </a>
3.144     scop     3329: </td>
                   3330: <td></td>
                   3331: </tr>
                   3332: EOF
3.120     scop     3333:   }
                   3334:
3.144     scop     3335:   print <<EOF;
3.189     scop     3336: <tr>
                   3337: <td class="opt-label">
                   3338: <label for="logsort" accesskey="L">Sort log by:</label>
                   3339: </td>
                   3340: <td>
3.144     scop     3341: EOF
3.120     scop     3342:   printLogSortSelect($use_java_script);
3.144     scop     3343:   print <<EOF;
3.189     scop     3344: </td>
3.208     scop     3345: <td><input type="submit" value="Set" accesskey="S" /></td>
3.189     scop     3346: </tr>
3.144     scop     3347: </table>
                   3348: EOF
3.154     scop     3349:   foreach (@stickyvars) {
                   3350:     next if ($_ eq "f");
                   3351:     next if ($_ eq "only_with_tag");
                   3352:     next if ($_ eq "logsort");
3.208     scop     3353:     printf("<input type=\"hidden\" name=\"$_\" value=\"%s\" />\n",
3.154     scop     3354:            htmlquote($input{$_}))
                   3355:       if (defined($input{$_})
3.194     scop     3356:           && (!defined($DEFAULTVALUE{$_}) || $input{$_} ne $DEFAULTVALUE{$_}));
3.154     scop     3357:   }
3.189     scop     3358:   print "</fieldset>\n</form>\n";
3.120     scop     3359:   html_footer();
                   3360: }
                   3361:
3.175     scop     3362:
3.120     scop     3363: sub flush_diff_rows($$$$)
                   3364: {
                   3365:   my ($leftColRef, $rightColRef, $leftRow, $rightRow) = @_;
                   3366:
3.175     scop     3367:   return unless defined($state);
3.120     scop     3368:
                   3369:   if ($state eq "PreChangeRemove") {    # we just got remove-lines before
3.133     scop     3370:     for (my $j = 0; $j < $leftRow; $j++) {
3.256     scop     3371:       printf(<<EOF, spacedHtmlText(@$leftColRef[$j]));
3.144     scop     3372: <tr>
3.260     scop     3373:  <td class="diff diff-removed">&nbsp;%s</td>
                   3374:  <td class="diff diff-empty">&nbsp;</td>
3.144     scop     3375: </tr>
                   3376: EOF
3.120     scop     3377:     }
                   3378:   } elsif ($state eq "PreChange") {     # state eq "PreChange"
                   3379:                                         # we got removes with subsequent adds
3.222     scop     3380:     if (HAS_EDIFF) {
3.176     scop     3381:       # construct the suffix tree
                   3382:       my $left_diff = join("\n", @$leftColRef[0..$leftRow-1]);
                   3383:       my $right_diff = join("\n", @$rightColRef[0..$rightRow-1]);
                   3384:       my $diff_str = String::Ediff::ediff($left_diff, $right_diff);
                   3385:
                   3386:       my @diff_str = split(/ /, $diff_str);
                   3387:       my $INFINITY = 10000000;
                   3388:       push(@diff_str, ($INFINITY) x 8);
                   3389:       my ($idx, $b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2) =
                   3390:         (0, @diff_str[0..7]);
                   3391:       my ($l_cul, $r_cul) = (0, 0);
                   3392:       my ($ldx, $rdx) = (0, 0);
                   3393:       my (@left_html, @right_html);
                   3394:       for (my $j = 0; $j < $leftRow; $j++) {
                   3395:         my $line_len = length(@$leftColRef[$j]);
                   3396:         my $line = @$leftColRef[$j];
                   3397:         $l_cul += length($line) + 1; # includes "\n"
                   3398:         my $l_culx = $l_cul - 1; # not includes "\n"
                   3399:         if ($j < $lb1) {
                   3400:           $line = spacedHtmlText($line);
3.260     scop     3401:           push(@left_html, "<td class=\"diff diff-changed\">$line</td>");
3.176     scop     3402:         } elsif ($lb1 == $j) {
                   3403:           my $html_line;
                   3404:           while ($lb1 == $j) {
                   3405:             my $begin_char = $l_culx - $b1;
                   3406:
                   3407:             $line =~ /^(.*)(.{$begin_char})$/;
                   3408:             $html_line .= spacedHtmlText($1) .
3.260     scop     3409:               '</span><span class="diff diff-unchanged">';
3.176     scop     3410:             $line = $2;
                   3411:             last if ($j != $le1);
                   3412:
                   3413:             my $end_char = $l_culx - $e1;
                   3414:             $line =~ /^(.*)(.{$end_char})$/;
                   3415:             $html_line .= spacedHtmlText($1) .
3.260     scop     3416:               '</span><span class="diff diff-changed">';
3.176     scop     3417:             $line = $2;
                   3418:
                   3419:             $idx++;
                   3420:             my ($tb1, $te1, $tlb1, $tle1, $tb2, $te2, $tlb2, $tle2) =
                   3421:               ($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2);
                   3422:             ($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2) =
                   3423:               @diff_str[$idx*8..($idx+1)*8-1];
                   3424:             $lb1 = $INFINITY if ($lb1 < 0);
                   3425:             $lb2 = $INFINITY if ($lb2 < 0);
                   3426:             $le1 = $INFINITY if ($le1 < 0);
                   3427:             $le2 = $INFINITY if ($le2 < 0);
                   3428:             if ($te1 > $b1) {
                   3429:               ($b1, $lb1) = ($te1, $tle1);
                   3430:             }
                   3431:             if ($te2 > $b2) {
                   3432:               ($b2, $lb2) = ($te2, $tle2);
                   3433:             }
                   3434:           }
                   3435:           push(@left_html,
3.260     scop     3436:                sprintf('<td><span class="diff diff-changed">%s%s</span></td>',
                   3437:                        $html_line, spacedHtmlText($line)));
3.176     scop     3438:         } elsif ($le1 == $j) {
                   3439:           my $html_line;
                   3440:           while ($le1 == $j) {
                   3441:             my $end_char = $l_culx - $e1;
                   3442:             $line =~ /^(.*)(.{$end_char})$/;
                   3443:             $html_line .= spacedHtmlText($1) .
3.260     scop     3444:               '</span><span class="diff diff-changed">';
3.176     scop     3445:             $line = $2;
                   3446:
                   3447:             $idx++;
                   3448:             my ($tb1, $te1, $tlb1, $tle1, $tb2, $te2, $tlb2, $tle2) =
                   3449:               ($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2);
                   3450:             ($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2) =
                   3451:               @diff_str[$idx*8..($idx+1)*8-1];
                   3452:             $lb1 = $INFINITY if ($lb1 < 0);
                   3453:             $lb2 = $INFINITY if ($lb2 < 0);
                   3454:             $le1 = $INFINITY if ($le1 < 0);
                   3455:             $le2 = $INFINITY if ($le2 < 0);
                   3456:             if ($te1 > $b1) {
                   3457:               ($b1, $lb1) = ($te1, $tle1);
                   3458:             }
                   3459:             if ($te2 > $b2) {
                   3460:               ($b2, $lb2) = ($te2, $tle2);
                   3461:             }
                   3462:
                   3463:             last if ($lb1 != $j);
                   3464:
                   3465:             my $begin_char = $l_culx - $b1;
                   3466:
                   3467:             $line =~ /^(.*)(.{$begin_char})$/;
                   3468:             $html_line .= spacedHtmlText($1) .
3.260     scop     3469:               '</span><span class="diff diff-unchanged">';
3.176     scop     3470:             $line = $2;
                   3471:           }
                   3472:           push(@left_html,
3.260     scop     3473:               sprintf('<td><span class="diff diff-unchanged">%s%s</span></td>',
                   3474:                       $html_line, spacedHtmlText($line)));
3.176     scop     3475:         } else {
                   3476:           $line = spacedHtmlText($line);
3.260     scop     3477:           push(@left_html, "<td class=\"diff diff-unchanged\">$line</td>");
3.176     scop     3478:         }
                   3479:       }
                   3480:       ($idx, $b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2) =
                   3481:         (0, @diff_str[0..7]);
                   3482:       $lb1 = $INFINITY if ($lb1 < 0);
                   3483:       $lb2 = $INFINITY if ($lb2 < 0);
                   3484:       $le1 = $INFINITY if ($le1 < 0);
                   3485:       $le2 = $INFINITY if ($le2 < 0);
                   3486:       for (my $j = 0; $j < $rightRow; $j++) {
                   3487:         my $line_len = length(@$rightColRef[$j]);
                   3488:         my $line = @$rightColRef[$j];
                   3489:         $r_cul += length($line) + 1; # includes "\n"
                   3490:         my $r_culx = $r_cul - 1; # not includes "\n"
                   3491:         if ($j < $lb2) {
                   3492:           $line = spacedHtmlText($line);
3.260     scop     3493:           push(@right_html, "<td class=\"diff diff-changed\">$line</td>");
3.176     scop     3494:         } elsif ($lb2 == $j) {
                   3495:           my $html_line;
                   3496:           while ($lb2 == $j) {
                   3497:             my $begin_char = $r_culx - $b2;
                   3498:
                   3499:             $line =~ /^(.*)(.{$begin_char})$/;
                   3500:             $html_line .= spacedHtmlText($1) .
3.260     scop     3501:               '</span><span class="diff diff-unchanged">';
3.176     scop     3502:             $line = $2;
                   3503:
                   3504:             last if ($j != $le2);
                   3505:
                   3506:             my $end_char = $r_culx - $e2;
                   3507:             $line =~ /^(.*)(.{$end_char})$/;
                   3508:             $html_line .= spacedHtmlText($1) .
3.260     scop     3509:               '</span><span class="diff diff-changed">';
3.176     scop     3510:             $line = $2;
                   3511:
                   3512:             $idx++;
                   3513:             my ($tb1, $te1, $tlb1, $tle1, $tb2, $te2, $tlb2, $tle2) =
                   3514:               ($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2);
                   3515:             ($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2) =
                   3516:               @diff_str[$idx*8..($idx+1)*8-1];
                   3517:             $lb1 = $INFINITY if ($lb1 < 0);
                   3518:             $lb2 = $INFINITY if ($lb2 < 0);
                   3519:             $le1 = $INFINITY if ($le1 < 0);
                   3520:             $le2 = $INFINITY if ($le2 < 0);
                   3521:             if ($te1 > $b1) {
                   3522:               ($b1, $lb1) = ($te1, $tle1);
                   3523:             }
                   3524:             if ($te2 > $b2) {
                   3525:               ($b2, $lb2) = ($te2, $tle2);
                   3526:             }
                   3527:           }
                   3528:           push(@right_html,
3.260     scop     3529:                sprintf('<td><span class="diff diff-changed">%s%s</span></td>',
                   3530:                        $html_line, spacedHtmlText($line)));
3.176     scop     3531:         } elsif ($le2 == $j) {
                   3532:           my $html_line;
                   3533:           while ($le2 == $j) {
                   3534:             my $end_char = $r_culx - $e2;
                   3535:             $line =~ /^(.*)(.{$end_char})$/;
                   3536:             $html_line .= spacedHtmlText($1) .
3.260     scop     3537:               '</span><span class="diff diff-changed">';
3.176     scop     3538:             $line = $2;
                   3539:
                   3540:             $idx++;
                   3541:             my ($tb1, $te1, $tlb1, $tle1, $tb2, $te2, $tlb2, $tle2) =
                   3542:               ($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2);
                   3543:             ($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2) =
                   3544:               @diff_str[$idx*8..($idx+1)*8-1];
                   3545:             $lb1 = $INFINITY if ($lb1 < 0);
                   3546:             $lb2 = $INFINITY if ($lb2 < 0);
                   3547:             $le1 = $INFINITY if ($le1 < 0);
                   3548:             $le2 = $INFINITY if ($le2 < 0);
                   3549:             if ($te1 > $b1) {
                   3550:               ($b1, $lb1) = ($te1, $tle1);
                   3551:             }
                   3552:             if ($te2 > $b2) {
                   3553:               ($b2, $lb2) = ($te2, $tle2);
                   3554:             }
                   3555:
                   3556:             last if ($lb2 != $j);
                   3557:
                   3558:             my $begin_char = $r_culx - $b2;
                   3559:             $line =~ /^(.*)(.{$begin_char})$/;
                   3560:             $html_line .= spacedHtmlText($1) .
3.260     scop     3561:               '</span><span class="diff diff-unchanged">';
3.176     scop     3562:             $line = $2;
                   3563:           }
                   3564:           push(@right_html,
3.260     scop     3565:                sprintf('<td nowrap="nowrap"><span class="diff diff-unchanged"'.
                   3566:                        '>%s%s</span></td>',
                   3567:                        $html_line, spacedHtmlText($line)));
3.176     scop     3568:         } else {
                   3569:           $line = spacedHtmlText ($line);
3.260     scop     3570:           push @right_html, "<td class=\"diff diff-unchanged\">$line</td>";
3.176     scop     3571:         }
                   3572:       }
                   3573:       for (my $j = 0; $j < $leftRow || $j < $rightRow ; $j++) { # dump out both cols
                   3574:         print  '<tr>';
                   3575:         if ($j < $leftRow) {
                   3576:           print $left_html[$j];
                   3577:         } else {
3.260     scop     3578:           print '<td class="diff diff-changed-missing">&nbsp;</td>';
3.176     scop     3579:         }
                   3580:         if ($j < $rightRow) {
                   3581:           print $right_html[$j];
                   3582:         } else {
3.260     scop     3583:           print '<td class="diff diff-changed-missing">&nbsp;</td>';
3.176     scop     3584:         }
                   3585:         print "</tr>\n";
3.120     scop     3586:       }
3.176     scop     3587:     } else {
                   3588:       for (my $j = 0; $j < $leftRow || $j < $rightRow; $j++) { # dump both cols
                   3589:         print "<tr>\n";
                   3590:         if ($j < $leftRow) {
3.260     scop     3591:           print '<td class="diff diff-changed">&nbsp;' .
3.176     scop     3592:             spacedHtmlText(@$leftColRef[$j]) . '</td>';
                   3593:         } else {
3.260     scop     3594:           print '<td class="diff diff-changed-missing">&nbsp;</td>';
3.176     scop     3595:         }
                   3596:         print "\n";
3.120     scop     3597:
3.176     scop     3598:         if ($j < $rightRow) {
3.260     scop     3599:           print '<td class="diff diff-changed">&nbsp;' .
3.176     scop     3600:             spacedHtmlText(@$rightColRef[$j]) . '</td>';
                   3601:         } else {
3.260     scop     3602:           print '<td class="diff diff-changed-missing">&nbsp;</td>';
3.176     scop     3603:         }
                   3604:         print "\n</tr>\n";
3.120     scop     3605:       }
                   3606:     }
                   3607:   }
3.1       knu      3608: }
                   3609:
3.175     scop     3610:
3.263     scop     3611: #
                   3612: # Generates "human readable", HTMLified diffs.
                   3613: #
3.144     scop     3614: sub human_readable_diff($$)
3.120     scop     3615: {
                   3616:   my ($fh, $rev) = @_;
3.144     scop     3617:
3.169     scop     3618:   (my $where_nd       = $where)       =~ s|\.diff$||;
                   3619:   (my $filename       = $where_nd)    =~ s|^.*/||;
3.262     scop     3620:   (my $pathname       = $where_nd)    =~ s|((?<=/)Attic/)?[^/]*$||;
3.169     scop     3621:   (my $scriptwhere_nd = $scriptwhere) =~ s|\.diff$||;
3.120     scop     3622:
3.133     scop     3623:   navigateHeader($scriptwhere_nd, $pathname, $filename, $rev, 'diff');
3.120     scop     3624:
3.178     scop     3625:   # Read header to pick up read revision and date, if possible.
                   3626:
                   3627:   my ($r1d, $r1r, $r2d, $r2r);
3.120     scop     3628:   while (<$fh>) {
                   3629:     ($r1d, $r1r) = /\t(.*)\t(.*)$/ if (/^--- /);
                   3630:     ($r2d, $r2r) = /\t(.*)\t(.*)$/ if (/^\+\+\+ /);
                   3631:     last if (/^\+\+\+ /);
                   3632:   }
                   3633:
3.178     scop     3634:   my ($rev1, $date1);
3.120     scop     3635:   if (defined($r1r) && $r1r =~ /^(\d+\.)+\d+$/) {
                   3636:     $rev1  = $r1r;
                   3637:     $date1 = $r1d;
                   3638:   }
3.178     scop     3639:   my ($rev2, $date2);
3.120     scop     3640:   if (defined($r2r) && $r2r =~ /^(\d+\.)+\d+$/) {
                   3641:     $rev2  = $r2r;
                   3642:     $date2 = $r2d;
                   3643:   }
3.292   ! scop     3644:   $rev1  = $input{r1}      unless defined($rev1);
        !          3645:   $rev1  = $input{tr1}     if (defined($rev1) && $rev1 eq 'text');
3.178     scop     3646:   $rev1  = 'unknown-left'  unless defined($rev1);
3.292   ! scop     3647:   $rev2  = $input{r2}      unless defined($rev2);
        !          3648:   $rev2  = $input{tr2}     if (defined($rev2) && $rev2 eq 'text');
3.178     scop     3649:   $rev2  = 'unknown-right' unless defined($rev2);
                   3650:   $date1 = defined($date1) ? ', ' . htmlquote($date1) : '';
                   3651:   $date2 = defined($date2) ? ', ' . htmlquote($date2) : '';
3.120     scop     3652:
3.281     scop     3653:   my $link = uri_escape($filename) . ($query ? "$query;" : '?');
3.210     scop     3654:
3.144     scop     3655:   # Using <table style=\"border: none\" here breaks NS 4.x badly...
3.210     scop     3656:   print <<EOF;
                   3657: <h3 style="text-align: center">Diff for /$where_nd between versions $rev1 and $rev2</h3>
                   3658: <table border="0" cellspacing="0" cellpadding="0" width="100%" summary="Diff output">
3.144     scop     3659: <tr style="background-color: #ffffff">
3.210     scop     3660: <th style="text-align: center; vertical-align: top" width="50%">
3.281     scop     3661: <a href="${link}rev=$rev1">version $rev1</a>$date1
3.178     scop     3662: </th>
3.210     scop     3663: <th style="text-align: center; vertical-align: top" width="50%">
3.281     scop     3664: <a href="${link}rev=$rev2">version $rev2</a>$date2
3.144     scop     3665: </th>
3.178     scop     3666: </tr>
3.144     scop     3667: EOF
3.120     scop     3668:
                   3669:   # Process diff text
                   3670:   # prefetch several lines
                   3671:   my @buf = head($fh);
3.144     scop     3672:   my %d = scan_directives(@buf);
3.120     scop     3673:
3.144     scop     3674:   my $leftRow  = 0;
                   3675:   my $rightRow = 0;
                   3676:   my ($difftxt, @rightCol, @leftCol, $oldline, $newline, $funname);
3.120     scop     3677:
3.281     scop     3678:   $link .= 'content-type=text%2Fx-cvsweb-markup;';
                   3679:   $link .= 'ln=1;' unless ($link =~ /\?.*\bln=1\b/);
3.210     scop     3680:
3.120     scop     3681:   while (@buf || !eof($fh)) {
                   3682:     $difftxt = @buf ? shift @buf : <$fh>;
                   3683:
                   3684:     if ($difftxt =~ /^@@/) {
                   3685:       ($oldline, $newline, $funname) =
                   3686:         $difftxt =~ /@@ \-([0-9]+).*\+([0-9]+).*@@(.*)/;
                   3687:       $funname = htmlquote($funname);
                   3688:       $funname =~ s/\s/&nbsp;/go;
3.182     scop     3689:       $funname &&= "&nbsp;<span style=\"font-size: smaller\">$funname</span>";
3.210     scop     3690:       my $ol = $oldline || 1;
                   3691:       my $nl = $newline || 1;
3.144     scop     3692:
3.210     scop     3693:       print <<EOF;
3.182     scop     3694: <tr>
3.210     scop     3695: <td width="50%" class="diff-heading">
3.281     scop     3696:  <b><a href="${link}rev=$rev1#l$ol">Line&nbsp;$oldline</a></b>$funname
3.182     scop     3697: </td>
3.210     scop     3698: <td width="50%" class="diff-heading">
3.281     scop     3699:  <b><a href="${link}rev=$rev2#l$nl">Line&nbsp;$newline</a></b>$funname
3.144     scop     3700: </td>
3.208     scop     3701: </tr>
3.144     scop     3702: EOF
                   3703:
3.120     scop     3704:       $state    = "dump";
                   3705:       $leftRow  = 0;
                   3706:       $rightRow = 0;
                   3707:     } else {
3.224     scop     3708:       my ($diffcode, $rest) = $difftxt =~ /^([-+ ])(.*)/;
                   3709:       $diffcode = '' unless defined($diffcode);
3.176     scop     3710:       $_ = $rest;
3.120     scop     3711:
                   3712:       #########
                   3713:       # little state machine to parse unified-diff output (Hen, zeller@think.de)
                   3714:       # in order to get some nice 'ediff'-mode output
                   3715:       # states:
                   3716:       #  "dump"             - just dump the value
                   3717:       #  "PreChangeRemove"  - we began with '-' .. so this could be the start of a 'change' area or just remove
                   3718:       #  "PreChange"        - okey, we got several '-' lines and moved to '+' lines -> this is a change block
                   3719:       ##########
                   3720:
                   3721:       if ($diffcode eq '+') {
                   3722:         if ($state eq "dump")
                   3723:         {    # 'change' never begins with '+': just dump out value
3.254     scop     3724:           $_ = spacedHtmlText($rest, $d{tabstop});
3.144     scop     3725:           printf(<<EOF, $_);
                   3726: <tr>
3.260     scop     3727:  <td class="diff diff-empty">&nbsp;</td>
                   3728:  <td class="diff diff-added">&nbsp;%s</td>
3.144     scop     3729: </tr>
                   3730: EOF
3.120     scop     3731:         } else {    # we got minus before
                   3732:           $state = "PreChange";
                   3733:           $rightCol[$rightRow++] = $_;
                   3734:         }
                   3735:       } elsif ($diffcode eq '-') {
                   3736:         $state = "PreChangeRemove";
                   3737:         $leftCol[$leftRow++] = $_;
                   3738:       } else {    # empty diffcode
                   3739:         flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
3.254     scop     3740:         $_ = spacedHtmlText($rest, $d{tabstop});
3.147     scop     3741:         printf(<<EOF, $_, $_);
3.144     scop     3742: <tr>
3.260     scop     3743:  <td class="diff diff-same">&nbsp;%s</td>
                   3744:  <td class="diff diff-same">&nbsp;%s</td>
3.144     scop     3745: </tr>
                   3746: EOF
3.120     scop     3747:         $state    = "dump";
                   3748:         $leftRow  = 0;
                   3749:         $rightRow = 0;
                   3750:       }
                   3751:     }
                   3752:   }
                   3753:   close($fh);
                   3754:
                   3755:   flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
                   3756:
                   3757:   # state is empty if we didn't have any change
                   3758:   if (!$state) {
3.144     scop     3759:     print <<EOF;
                   3760: <tr>
                   3761:  <td colspan="2">&nbsp;</td>
                   3762: </tr>
3.260     scop     3763: <tr class="diff diff-empty">
3.144     scop     3764:  <td colspan="2" align="center"><b>- No viewable change -</b></td>
                   3765: </tr>
                   3766: EOF
3.120     scop     3767:   }
                   3768:
3.182     scop     3769:   printf(<<EOF, $scriptwhere);
3.144     scop     3770: </table>
3.208     scop     3771: <hr style="width: 100%%" />
3.144     scop     3772: <form method="get" action="%s">
3.182     scop     3773: <div style="float: left">
3.208     scop     3774: <label for="f">Diff format:<br />
3.144     scop     3775: EOF
3.168     scop     3776:   printDiffSelectStickyVars();
3.120     scop     3777:   printDiffSelect($use_java_script);
3.182     scop     3778:   printf(<<EOF, $rev1, $rev2);
3.179     scop     3779: </label>
3.208     scop     3780: <input type="submit" value="Show" />
3.182     scop     3781: </div>
                   3782: <table style="float: right; border: thin outset" cellspacing="0" cellpadding="1" title="Legend" summary="Legend">
                   3783:  <tr>
3.260     scop     3784:   <td align="center" class="diff diff-removed">Removed from v.%s</td>
                   3785:   <td class="diff diff-empty">&nbsp;</td>
                   3786:  </tr><tr class="diff diff-changed">
3.182     scop     3787:   <td align="center" colspan="2">changed lines</td>
                   3788:  </tr><tr>
3.260     scop     3789:   <td class="diff diff-empty">&nbsp;</td>
                   3790:   <td align="center" class="diff diff-added">Added in v.%s</td>
3.182     scop     3791:  </tr>
3.144     scop     3792: </table>
                   3793: </form>
3.208     scop     3794: <br clear="all" />
3.144     scop     3795: EOF
3.120     scop     3796: }
3.167     scop     3797:
                   3798:
3.245     scop     3799: sub doEnscript($$$;$)
3.167     scop     3800: {
3.240     scop     3801:   my ($filehandle, $highlight, $linenumbers, $lang) = @_;
                   3802:   $lang ||= 'cvsweb';
3.167     scop     3803:
3.174     scop     3804:   my @cmd = ($CMD{enscript},
                   3805:              @enscript_options,
3.240     scop     3806:              '-q', "--language=$lang", '-o', '-', "--highlight=$highlight");
3.174     scop     3807:
                   3808:   local *ENSCRIPT_OUT;
                   3809:   my ($h, $err) =
3.229     scop     3810:     startproc(\@cmd, $filehandle, '>pipe', \*ENSCRIPT_OUT);
3.174     scop     3811:   fatal('500 Internal Error', $err) unless $h;
                   3812:
                   3813:   # We could short-circuit and have enscript output directly to STDOUT above,
                   3814:   # but that doesn't work with mod_perl (at least some 1.99 versions).
                   3815:   if ($linenumbers) {
                   3816:     my $ln = 0;
                   3817:     while (<ENSCRIPT_OUT>) {
                   3818:       printf '<a id="l%d" class="src">%5d: </a>', (++$ln) x 2;
                   3819:       print $_;
3.167     scop     3820:     }
3.174     scop     3821:   } else {
                   3822:     local $/ = undef;
                   3823:     print <ENSCRIPT_OUT>;
3.167     scop     3824:   }
3.229     scop     3825:   $h->finish();
3.167     scop     3826: }
                   3827:
3.120     scop     3828:
3.271     scop     3829: #
                   3830: # The passed in $path and $filename should not be URI escaped, and $swhere
                   3831: # *should* be.
                   3832: #
3.163     scop     3833: sub navigateHeader($$$$$;$)
3.120     scop     3834: {
3.163     scop     3835:   my ($swhere, $path, $filename, $rev, $title, $moddate) = @_;
3.120     scop     3836:   $swhere = "" if ($swhere eq $scriptwhere);
3.271     scop     3837:   $swhere = './' . uri_escape($filename) if ($swhere eq "");
3.120     scop     3838:
3.136     scop     3839:   my $qfile = htmlquote($filename);
                   3840:   my $qpath = htmlquote($path);
3.274     scop     3841:   my $trev  = $rev ? " - " . htmlquote($rev) : '';
3.100     knu      3842:
3.163     scop     3843:   http_header('', $moddate);
3.133     scop     3844:
3.120     scop     3845:   print <<EOF;
3.100     knu      3846: $HTML_DOCTYPE
3.89      knu      3847: <html>
                   3848: <head>
3.170     scop     3849: <title>$qpath$qfile - $title$trev</title>
3.144     scop     3850: $HTML_META$CSS</head>
3.129     scop     3851: <body class="src">
3.265     scop     3852: <table class="navigate-header" width="100%" summary="Navigation">
3.184     scop     3853:  <tr>
                   3854:   <td>
3.64      knu      3855: EOF
                   3856:
3.274     scop     3857:   my $frag = '';
                   3858:   if ($rev) {
                   3859:     $frag  = '#';
                   3860:     $frag .= 'rev' if ($rev =~ /\./);  # Normal revision: prefix with "rev".
                   3861:     $frag .= $rev;                     # Append revision/branch/tag.
                   3862:   }
                   3863:   my $backurl = "$swhere$query$frag";
                   3864:
                   3865:   print &link($backicon, $backurl);
                   3866:   printf '<b>Return to %s CVS log', &link($qfile, $backurl);
3.120     scop     3867:   print "</b> $fileicon</td>";
                   3868:
3.144     scop     3869:   printf(<<EOF, $diricon, &clickablePath($path, 1));
3.182     scop     3870:   <td style="text-align: right">%s <b>Up to %s</b></td>
3.144     scop     3871:  </tr>
                   3872: </table>
                   3873: EOF
3.120     scop     3874: }
                   3875:
3.175     scop     3876:
3.120     scop     3877: sub plural_write($$)
                   3878: {
                   3879:   my ($num, $text) = @_;
                   3880:   if ($num != 1) {
                   3881:     $text .= "s";
                   3882:   }
                   3883:
                   3884:   if ($num > 0) {
                   3885:     return join (' ', $num, $text);
                   3886:   } else {
                   3887:     return "";
                   3888:   }
3.1       knu      3889: }
                   3890:
3.175     scop     3891:
3.1       knu      3892: ##
                   3893: # print readable timestamp in terms of
                   3894: # '..time ago'
                   3895: # H. Zeller <zeller@think.de>
                   3896: ##
3.120     scop     3897: sub readableTime($$)
                   3898: {
                   3899:   my ($secs, $long) = @_;
                   3900:
3.175     scop     3901:   # This function works correctly for time >= 2 seconds.
                   3902:   return 'very little time' if ($secs < 2);
3.120     scop     3903:
                   3904:   my %desc = (
3.133     scop     3905:               1        => 'second',
                   3906:               60       => 'minute',
                   3907:               3600     => 'hour',
                   3908:               86400    => 'day',
                   3909:               604800   => 'week',
                   3910:               2628000  => 'month',
                   3911:               31536000 => 'year'
                   3912:              );
                   3913:
3.120     scop     3914:   my @breaks = sort { $a <=> $b } keys %desc;
3.133     scop     3915:   my $i = 0;
3.120     scop     3916:
                   3917:   while ($i <= $#breaks && $secs >= 2 * $breaks[$i]) {
                   3918:     $i++;
                   3919:   }
                   3920:   $i--;
3.133     scop     3921:   my $break  = $breaks[$i];
                   3922:   my $retval = plural_write(int($secs / $break), $desc{$break});
3.120     scop     3923:
                   3924:   if ($long == 1 && $i > 0) {
                   3925:     my $rest = $secs % $break;
                   3926:     $i--;
                   3927:     $break = $breaks[$i];
                   3928:     my $resttime = plural_write(int($rest / $break), $desc{$break});
                   3929:     if ($resttime) {
                   3930:       $retval .= ", $resttime";
                   3931:     }
                   3932:   }
3.1       knu      3933:
3.120     scop     3934:   return $retval;
3.1       knu      3935: }
                   3936:
3.175     scop     3937:
3.1       knu      3938: #
3.263     scop     3939: # Returns a htmlified path where each directory is a link for faster
                   3940: # navigation.  $clickLast controls whether the basename
3.271     scop     3941: # (last directory/file) is a link as well.  The passed in $pathname should
                   3942: # *not* be URI escaped.
3.263     scop     3943: #
3.120     scop     3944: sub clickablePath($$)
                   3945: {
                   3946:   my ($pathname, $clickLast) = @_;
                   3947:
3.154     scop     3948:   my $root = '[' . htmlquote($CVSROOTdescr{$cvstree} || $cvstree) . ']';
                   3949:
3.144     scop     3950:   # This should never happen (see chooseCVSRoot()), but let's be sure...
3.154     scop     3951:   return $root if ($pathname eq '/');
3.120     scop     3952:
3.144     scop     3953:   my $retval =
3.154     scop     3954:     ' ' . &link($root, sprintf('%s/%s#dirlist', $scriptname, $query));
3.144     scop     3955:   my $wherepath = '';
                   3956:   my ($lastslash) = $pathname =~ m|/$|;
                   3957:
3.261     scop     3958:   foreach (split(m|/|, $pathname)) {
3.144     scop     3959:     $retval .= ' / ';
                   3960:     $wherepath .= "/$_";
                   3961:     my $last = "$wherepath/" eq "/$pathname" || $wherepath eq "/$pathname";
                   3962:
                   3963:     if ($clickLast || !$last) {
                   3964:       $retval .= &link(htmlquote($_),
                   3965:                        join ('',
3.271     scop     3966:                              $scriptname, uri_escape_path($wherepath),
3.144     scop     3967:                              (!$last || $lastslash ? '/' : ''), $query,
                   3968:                              (!$last || $lastslash ? "#dirlist" : "")));
                   3969:     } else {    # do not make a link to the current dir
                   3970:       $retval .= htmlquote($_);
3.120     scop     3971:     }
                   3972:   }
                   3973:   return $retval;
                   3974: }
                   3975:
3.144     scop     3976:
3.120     scop     3977: sub chooseCVSRoot()
                   3978: {
3.268     scop     3979:   print "<form method=\"get\" action=\"$scriptwhere\">\n<p>\n";
3.120     scop     3980:   if (2 <= @CVSROOT) {
3.133     scop     3981:     foreach my $k (keys %input) {
3.208     scop     3982:       printf("<input type=\"hidden\" name=\"%s\" value=\"%s\" />\n",
3.154     scop     3983:              htmlquote($k), htmlquote($input{$k}))
                   3984:         if ($input{$k} && $k ne 'cvsroot');
3.120     scop     3985:     }
                   3986:
3.144     scop     3987:     printf(<<EOF, $use_java_script ? ' onchange="this.form.submit()"' : '');
3.208     scop     3988: <label for="cvsroot" accesskey="C">CVS Root:
3.144     scop     3989: <select id="cvsroot" name="cvsroot"%s>
                   3990: EOF
3.120     scop     3991:
3.133     scop     3992:     foreach my $k (@CVSROOT) {
3.136     scop     3993:       printf("<option value=\"%s\"%s>%s</option>\n",
                   3994:              htmlquote($k),
3.208     scop     3995:              ($k eq $cvstree) ? ' selected="selected"' : '',
3.136     scop     3996:              htmlquote($CVSROOTdescr{$k} || $k));
3.120     scop     3997:     }
3.208     scop     3998:     print '</select></label>';
3.120     scop     3999:   } else {
                   4000:
                   4001:     # no choice -- but we need the form to select module/path,
                   4002:     # at least for Netscape
3.208     scop     4003:     printf "CVS Root: <b>[%s]</b>",
3.154     scop     4004:       htmlquote($CVSROOTdescr{$cvstree} || $cvstree);
3.120     scop     4005:   }
                   4006:
3.144     scop     4007:   print <<EOF;
                   4008: <label for="mpath" accesskey="M">
                   4009: Module path or alias:
3.208     scop     4010: <input type="text" id="mpath" name="path" value="" size="15" />
3.144     scop     4011: </label>
3.208     scop     4012: <input type="submit" value="Go" accesskey="O" />
                   4013: </p>
                   4014: </form>
3.144     scop     4015: EOF
3.120     scop     4016: }
                   4017:
3.175     scop     4018:
3.120     scop     4019: sub chooseMirror()
                   4020: {
                   4021:   # This code comes from the original BSD-cvsweb
                   4022:   # and may not be useful for your site; If you don't
                   4023:   # set %MIRRORS this won't show up, anyway.
                   4024:   scalar(%MIRRORS) or return;
                   4025:
                   4026:   # Should perhaps exclude the current site somehow...
                   4027:   print "\n<p>\nThis CVSweb is mirrored in\n";
                   4028:
                   4029:   my @tmp = map(&link(htmlquote($_), $MIRRORS{$_}), sort keys %MIRRORS);
                   4030:   my $tmp = pop (@tmp);
                   4031:
                   4032:   if (scalar(@tmp)) {
                   4033:     print join (', ', @tmp), ' and ';
                   4034:   }
                   4035:
                   4036:   print "$tmp.\n</p>\n";
                   4037: }
                   4038:
3.175     scop     4039:
3.120     scop     4040: sub fileSortCmp()
                   4041: {
3.175     scop     4042:   (my $af = $a) =~ s/,v$//;
                   4043:   (my $bf = $b) =~ s/,v$//;
3.120     scop     4044:   my ($rev1, $date1, $log1, $author1, $filename1) = @{$fileinfo{$af}}
                   4045:     if (defined($fileinfo{$af}));
                   4046:   my ($rev2, $date2, $log2, $author2, $filename2) = @{$fileinfo{$bf}}
                   4047:     if (defined($fileinfo{$bf}));
                   4048:
3.175     scop     4049:   my $comp = 0;
3.140     scop     4050:   if (defined($filename1) && defined($filename2) &&
                   4051:       $af eq $filename1   && $bf eq $filename2)
3.120     scop     4052:   {
                   4053:
                   4054:     # Two files
3.140     scop     4055:     $comp = -revcmp($rev1, $rev2)             if ($byrev  && $rev1  && $rev2);
                   4056:     $comp = ($date2   <=> $date1)             if ($bydate && $date1 && $date2);
                   4057:     if ($input{ignorecase}) {
                   4058:       $comp = (uc($log1)    cmp uc($log2))    if ($bylog && $log1 && $log2);
                   4059:       $comp = (uc($author1) cmp uc($author2)) if ($byauthor &&
                   4060:                                                   $author1 && $author2);
                   4061:     } else {
                   4062:       $comp = ($log1    cmp $log2)            if ($bylog && $log1 && $log2);
                   4063:       $comp = ($author1 cmp $author2)         if ($byauthor &&
                   4064:                                                   $author1 && $author2);
                   4065:     }
3.120     scop     4066:   }
                   4067:
                   4068:   if ($comp == 0) {
                   4069:
                   4070:     # Directories first, then files under version control,
                   4071:     # then other, "rogue" files.
                   4072:     # Sort by filename if no other criteria available.
                   4073:
                   4074:     my $ad = (
                   4075:       (-d "$fullname/$a")
                   4076:       ? 'D'
                   4077:       : (defined($fileinfo{$af}) ? 'F' : 'R')
                   4078:     );
                   4079:     my $bd = (
                   4080:       (-d "$fullname/$b")
                   4081:       ? 'D'
                   4082:       : (defined($fileinfo{$bf}) ? 'F' : 'R')
                   4083:     );
3.175     scop     4084:     (my $c = $a) =~ s|.*/||;
                   4085:     (my $d = $b) =~ s|.*/||;
3.144     scop     4086:
                   4087:     my ($l, $r) = ("$ad$c", "$bd$d");
                   4088:     $comp = $input{ignorecase} ? (uc($l) cmp uc($r)) : ($l cmp $r);
                   4089:
                   4090:     # Parent dir is always first, then Attic.
                   4091:     if ($comp != 0) {
                   4092:       if ($l eq 'D..') {
3.149     scop     4093:         $comp = -1;
3.144     scop     4094:       } elsif ($r eq 'D..') {
3.149     scop     4095:         $comp = 1;
3.144     scop     4096:       } elsif ($l eq 'DAttic') {
3.149     scop     4097:         $comp = -1;
3.144     scop     4098:       } elsif ($r eq 'DAttic') {
3.149     scop     4099:         $comp = 1;
3.144     scop     4100:       }
                   4101:     }
3.120     scop     4102:   }
                   4103:   return $comp;
3.1       knu      4104: }
                   4105:
3.220     scop     4106: #
                   4107: # Returns a URL to download the selected revision.
3.271     scop     4108: # Expects the passed in URL to be URI escaped, relative, and without a query
                   4109: # string.
3.220     scop     4110: #
3.120     scop     4111: sub download_url($$;$)
                   4112: {
                   4113:   my ($url, $revision, $mimetype) = @_;
3.252     scop     4114:   my @dots = $revision =~ /\./g;
                   4115:   $revision =~ s/\b0\.(?=\d+$)// if (scalar(@dots) & 1);
3.1       knu      4116:
3.222     scop     4117:   if (!defined($mimetype) || $mimetype !~ CVSWEBMARKUP) {
3.120     scop     4118:     my $path = $where;
                   4119:     $path =~ s|[^/]+$||;
3.261     scop     4120:     $url = "$scriptname/$CheckoutMagic/$path$url";
3.120     scop     4121:   }
3.219     scop     4122:   $url .= '?rev=' . uri_escape($revision);
                   4123:   $url .= ';content-type=' . uri_escape($mimetype) if $mimetype;
3.67      knu      4124:
3.175     scop     4125:   return $url;
3.1       knu      4126: }
                   4127:
3.175     scop     4128: #
3.220     scop     4129: # Returns a link to download the selected revision.
3.271     scop     4130: # Expects the passed in URL to be URI escaped, relative,
                   4131: # and without a query string.
3.175     scop     4132: #
3.120     scop     4133: sub download_link($$$;$)
                   4134: {
                   4135:   my ($url, $revision, $textlink, $mimetype) = @_;
3.220     scop     4136:   return sprintf('<a href="%s" class="download-link">%s</a>',
3.271     scop     4137:                  download_url($url, $revision, $mimetype) . $barequery,
                   4138:                  htmlquote($textlink));
3.218     scop     4139: }
3.120     scop     4140:
3.219     scop     4141: #
                   4142: # Returns a URL to display the selected revision.
3.263     scop     4143: # Expects the passed in URL to be URI escaped, and without a query string.
3.219     scop     4144: #
                   4145: sub display_url($$;$)
                   4146: {
                   4147:   my ($url, $revision, $mimetype) = @_;
                   4148:   $url .= '?rev=' . uri_escape($revision);
                   4149:   $url .= ';content-type=' . uri_escape($mimetype) if $mimetype;
                   4150:   return $url;
                   4151: }
                   4152:
                   4153: #
                   4154: # Returns a link to display the selected revision.
3.263     scop     4155: # Expects the passed in URL to be URI escaped, and without a query string.
3.219     scop     4156: #
                   4157: sub display_link($$;$$)
                   4158: {
                   4159:   my ($url, $revision, $textlink, $mtype) = @_;
                   4160:   $textlink = $revision unless defined($textlink);
                   4161:   return sprintf('<a href="%s" class="display-link">%s</a>',
3.271     scop     4162:                  display_url($url, $revision, $mtype) . $barequery,
3.219     scop     4163:                  htmlquote($textlink));
                   4164: }
3.132     scop     4165:
3.271     scop     4166: #
                   4167: # Expects the passed in URL to be URI escaped, and without a query string.
                   4168: # The passed in link text should be already HTML escaped as appropriate.
                   4169: #
3.170     scop     4170: sub graph_link($;$)
3.132     scop     4171: {
3.170     scop     4172:   my ($url, $text) = @_;
3.132     scop     4173:   $text ||= $graphicon;
3.271     scop     4174:   return sprintf('<a href="%s?graph=1%s">%s</a>', $url, $barequery, $text);
3.258     scop     4175: }
                   4176:
                   4177: #
                   4178: # Returns a link to CVSHistory for the given directory and filename.
                   4179: #
                   4180: sub history_link($$;$)
                   4181: {
                   4182:   my ($dir, $file, $text) = @_;
                   4183:   $dir  ||= '';
                   4184:   $file ||= '';
                   4185:   $text ||= 'History';
                   4186:   return &link($text,
                   4187:                sprintf('%s?cvsroot=%s;dsearch=%s;fsearch=%s;limit=1',
                   4188:                        $cvshistory_url, uri_escape($input{cvsroot} || ''),
                   4189:                        uri_escape($dir), uri_escape($file)));
3.1       knu      4190: }
                   4191:
                   4192: # Returns a Query string with the
                   4193: # specified parameter toggled
3.140     scop     4194: sub toggleQuery($;$)
3.120     scop     4195: {
                   4196:   my ($toggle, $value) = @_;
3.133     scop     4197:
                   4198:   my %vars = %input;
3.120     scop     4199:
                   4200:   if (defined($value)) {
                   4201:     $vars{$toggle} = $value;
                   4202:   } else {
                   4203:     $vars{$toggle} = $vars{$toggle} ? 0 : 1;
                   4204:   }
                   4205:
                   4206:   # Build a new query of non-default paramenters
3.133     scop     4207:   my $newquery = "";
                   4208:   foreach my $var (@stickyvars) {
3.120     scop     4209:     my ($value)   = defined($vars{$var})         ? $vars{$var}         : "";
                   4210:     my ($default) = defined($DEFAULTVALUE{$var}) ? $DEFAULTVALUE{$var} : "";
                   4211:
                   4212:     if ($value ne $default) {
3.203     scop     4213:       $newquery .= ';' if ($newquery ne "");
3.206     scop     4214:       $newquery .= uri_escape($var) . '=' . uri_escape($value);
3.120     scop     4215:     }
                   4216:   }
                   4217:
                   4218:   if ($newquery) {
                   4219:     return '?' . $newquery;
                   4220:   }
                   4221:   return "";
                   4222: }
                   4223:
                   4224: sub htmlquote($)
                   4225: {
                   4226:   local ($_) = @_;
                   4227:   # Special Characters; RFC 1866
                   4228:   s/&/&amp;/g;
                   4229:   s/\"/&quot;/g;
                   4230:   s/</&lt;/g;
                   4231:   s/>/&gt;/g;
3.175     scop     4232:   return $_;
3.120     scop     4233: }
                   4234:
                   4235: sub htmlunquote($)
                   4236: {
                   4237:   local ($_) = @_;
                   4238:   # Special Characters; RFC 1866
                   4239:   s/&quot;/\"/g;
                   4240:   s/&lt;/</g;
                   4241:   s/&gt;/>/g;
                   4242:   s/&amp;/&/g;
3.175     scop     4243:   return $_;
3.120     scop     4244: }
                   4245:
3.271     scop     4246: sub uri_escape_path($)
3.120     scop     4247: {
3.271     scop     4248:   return join('/', map(uri_escape($_), split(m|/+|, shift, -1)));
3.120     scop     4249: }
                   4250:
3.163     scop     4251: sub http_header(;$$)
3.120     scop     4252: {
3.163     scop     4253:   my ($content_type, $moddate) = @_;
                   4254:   $content_type ||= 'text/html';
3.120     scop     4255:
                   4256:   $content_type .= "; charset=$charset"
3.163     scop     4257:     if ($charset && $content_type =~ m,^text/,);
3.120     scop     4258:
3.185     scop     4259:   # Note that in the following, we explicitly join() and concatenate the
                   4260:   # headers instead of printing them as an array.  This is because some
                   4261:   # systems, eg. early versions of mod_perl 2 don't quite get it if the
                   4262:   # last \r\n\r\n isn't included in the last "payload" header print().
                   4263:
                   4264:   my @headers = ();
                   4265:   # TODO: ctime(3) from scalar gmtime() isn't HTTP compliant, see HTTP::Date.
                   4266:   push(@headers, 'Last-Modified: ' . scalar gmtime($moddate) . ' GMT')
                   4267:     if $moddate;
                   4268:   push(@headers, 'Content-Type: ' . $content_type);
3.120     scop     4269:
                   4270:   if ($allow_compress && $maycompress) {
3.222     scop     4271:     if (HAS_ZLIB
3.120     scop     4272:         || (defined($CMD{gzip}) && open(GZIP, "| $CMD{gzip} -1 -c")))
                   4273:     {
                   4274:
3.185     scop     4275:       push(@headers, 'Content-Encoding: x-gzip');
                   4276:       push(@headers, 'Vary: Accept-Encoding');     # RFC 2616, 14.44
                   4277:       print join("\r\n", @headers) . "\r\n\r\n";
                   4278:
3.120     scop     4279:       $| = 1;
3.185     scop     4280:       $| = 0;                                      # Flush header output.
3.120     scop     4281:
3.222     scop     4282:       tie(*GZIP, __PACKAGE__, \*STDOUT) if HAS_ZLIB;
3.120     scop     4283:       select(GZIP);
                   4284:       $gzip_open = 1;
                   4285:
                   4286:     } else {
3.185     scop     4287:
                   4288:       print join("\r\n", @headers) . "\r\n\r\n";
3.230     scop     4289:       printf
                   4290:         '<span style="font-size: smaller">Unable to find gzip binary in the <b>$command_path</b> (<code>%s</code>) to compress output</span><br />',
                   4291:           htmlquote(join(':', @command_path));
3.120     scop     4292:     }
3.185     scop     4293:
3.120     scop     4294:   } else {
3.185     scop     4295:     print join("\r\n", @headers) . "\r\n\r\n";
3.120     scop     4296:   }
                   4297: }
                   4298:
3.131     scop     4299:
3.163     scop     4300: sub html_header($;$)
3.120     scop     4301: {
3.163     scop     4302:   my ($title, $moddate) = @_;
3.288     scop     4303:   $title  = htmlquote($title);
                   4304:   my $l   = $logo || '';
                   4305:   my $css = $CSS || '';
3.163     scop     4306:   http_header('text/html', $moddate);
3.120     scop     4307:   print <<EOH;
3.100     knu      4308: $HTML_DOCTYPE
3.1       knu      4309: <html>
3.40      knu      4310: <head>
3.134     scop     4311: <title>$title</title>
3.288     scop     4312: $HTML_META$css</head>
3.129     scop     4313: <body>
3.182     scop     4314: $l <h1>$title</h1>
3.1       knu      4315: EOH
                   4316: }
                   4317:
3.120     scop     4318: sub html_footer()
                   4319: {
3.208     scop     4320:   print "<hr />\n<address>$address</address>\n" if $address;
3.127     scop     4321:   print "</body>\n</html>\n";
3.1       knu      4322: }
                   4323:
3.120     scop     4324: sub link_tags($)
                   4325: {
                   4326:   my ($tags) = @_;
                   4327:
3.261     scop     4328:   (my $filename = $where) =~ s|^.*/||;
3.271     scop     4329:   my $fileurl = './' . uri_escape($filename);
3.120     scop     4330:
3.261     scop     4331:   my $ret = "";
                   4332:   foreach my $sym (split(", ", $tags)) {
3.120     scop     4333:     $ret .= ",\n" if ($ret ne "");
3.136     scop     4334:     $ret .= &link(htmlquote($sym),
                   4335:                   $fileurl . toggleQuery('only_with_tag', $sym));
3.120     scop     4336:   }
3.219     scop     4337:   return $ret;
3.1       knu      4338: }
                   4339:
3.175     scop     4340:
3.1       knu      4341: #
3.233     scop     4342: # See if a file/dir is listed in the config file's @ForbiddenFiles list.
                   4343: # Takes a full file system path or one relative to $cvsroot, and strips the
                   4344: # trailing ",v" if present, then compares.  Returns 1 if forbidden, else 0.
3.221     scop     4345: #
3.233     scop     4346: sub forbidden($)
3.120     scop     4347: {
3.233     scop     4348:   (my $path = canonpath(shift)) =~ s/,v$//;
                   4349:   $path =~ s|^$cvsroot/+||;
3.175     scop     4350:   for my $forbidden_re (@ForbiddenFiles) {
                   4351:     return 1 if ($path =~ $forbidden_re);
3.120     scop     4352:   }
                   4353:   return 0;
3.174     scop     4354: }
                   4355:
                   4356:
                   4357: #
                   4358: # Starts a process using IPC::Run.  All arguments are passed to
                   4359: # IPC::Run::start() as-is.  Returns an array ($harness, $error) where
                   4360: # $harness is from IPC::Run if start() succeeds, undef otherwise.  In case
3.184     scop     4361: # of an error, $error contains the error message.
3.174     scop     4362: #
3.191     scop     4363: sub startproc(@)
3.174     scop     4364: {
3.215     scop     4365:   my $h = my $err = undef;
3.174     scop     4366:   eval {
                   4367:     local $SIG{__DIE__};
3.215     scop     4368:     $h = IPC::Run::start(@_) or die("return code: $?");
3.174     scop     4369:   };
3.215     scop     4370:   if ($@) {
3.229     scop     4371:     $h->finish() if $h;
3.215     scop     4372:     $h = undef;
                   4373:     $err = "'@{$_[0]}' failed: $@";
                   4374:   }
3.174     scop     4375:   return ($h, $err);
3.215     scop     4376: }
                   4377:
                   4378: #
                   4379: # Runs a process using IPC::Run.  All arguments are passed to
                   4380: # IPC::Run::run() as-is.  Returns an array ($exitcode, $errormsg).
                   4381: #
                   4382: sub runproc(@)
                   4383: {
                   4384:   eval {
                   4385:     local $SIG{__DIE__};
                   4386:     IPC::Run::run(@_);
                   4387:   };
                   4388:   my $exitcode = $? >> 8;
                   4389:   my $errormsg  = undef;
                   4390:   if ($@) {
                   4391:     $exitcode ||= -1;
                   4392:     $errormsg = "'@{$_[0]}' failed: $@";
                   4393:   }
                   4394:   return ($exitcode, $errormsg);
3.129     scop     4395: }
                   4396:
3.225     scop     4397: #
                   4398: # Check out a file to a temporary file.
                   4399: #
                   4400: sub checkout_to_temp($$$)
                   4401: {
                   4402:   my ($cvsroot, $cvsname, $rev) = @_;
3.25      knu      4403:
3.225     scop     4404:   # Pipe given cvs file into a temporary place.
                   4405:   my ($temp_fh, $temp_fn) = tempfile('.cvsweb.XXXXXXXX', DIR => tmpdir());
                   4406:
                   4407:   my @cmd = ($CMD{cvs}, @cvs_options, '-Qd', $cvsroot,
                   4408:              'co', '-p', "-r$rev", $cvsname);
                   4409:
                   4410:   local (*DIFF_OUT);
                   4411:   my ($h, $err) = startproc(\@cmd, \"", '>pipe', \*DIFF_OUT);
                   4412:   if ($h) {
                   4413:     local $/ = undef;
                   4414:     print $temp_fh <DIFF_OUT>;
3.229     scop     4415:     $h->finish();
3.225     scop     4416:     close($temp_fh);
                   4417:   } else {
                   4418:     close($temp_fh);
                   4419:     unlink($temp_fn);
                   4420:     fatal('500 Internal Error',
                   4421:           'Checkout failure (exit status %s), output: <pre>%s</pre>',
                   4422:           $? >> 8 || -1, $err);
                   4423:   }
                   4424:
                   4425:   return $temp_fn;
                   4426: }
                   4427:
                   4428: #
3.173     scop     4429: # Close the GZIP handle, and remove the tie.
3.225     scop     4430: #
3.120     scop     4431: sub gzipclose
                   4432: {
                   4433:   if ($gzip_open) {
                   4434:     select(STDOUT);
                   4435:     close(GZIP);
                   4436:     untie *GZIP;
                   4437:     $gzip_open = 0;
                   4438:   }
3.23      knu      4439: }
                   4440:
                   4441: # implement a gzipped file handle via the Compress:Zlib compression
                   4442: # library.
                   4443:
                   4444: sub MAGIC1() { 0x1f }
                   4445: sub MAGIC2() { 0x8b }
3.80      knu      4446: sub OSCODE() { 3 }
3.23      knu      4447:
3.120     scop     4448: sub TIEHANDLE
                   4449: {
                   4450:   my ($class, $out) = @_;
                   4451:   my ($d) = Compress::Zlib::deflateInit(
                   4452:     -Level      => Compress::Zlib::Z_BEST_COMPRESSION(),
                   4453:     -WindowBits => -Compress::Zlib::MAX_WBITS()
                   4454:     )
                   4455:     or return undef;
                   4456:   my ($o) = { handle => $out,
                   4457:               dh     => $d,
                   4458:               crc    => 0,
                   4459:               len    => 0,
                   4460:             };
                   4461:   my ($header) = pack("c10",
                   4462:                       MAGIC1, MAGIC2, Compress::Zlib::Z_DEFLATED(),
                   4463:                       0, 0, 0, 0, 0, 0, OSCODE);
                   4464:   print {$o->{handle}} $header;
                   4465:   return bless($o, $class);
                   4466: }
                   4467:
                   4468: sub PRINT
                   4469: {
                   4470:   my ($o)   = shift;
3.164     scop     4471:   my ($buf) = join (defined($,) ? $, : "", @_);
3.120     scop     4472:   my ($len) = length($buf);
                   4473:   my ($compressed, $status) = $o->{dh}->deflate($buf);
                   4474:   print {$o->{handle}} $compressed if defined($compressed);
                   4475:   $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   4476:   $o->{len} += $len;
                   4477:   return $len;
                   4478: }
                   4479:
                   4480: sub PRINTF
                   4481: {
                   4482:   my ($o)   = shift;
                   4483:   my ($fmt) = shift;
                   4484:   my ($buf) = sprintf($fmt, @_);
                   4485:   my ($len) = length($buf);
                   4486:   my ($compressed, $status) = $o->{dh}->deflate($buf);
                   4487:   print {$o->{handle}} $compressed if defined($compressed);
                   4488:   $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   4489:   $o->{len} += $len;
                   4490:   return $len;
                   4491: }
                   4492:
                   4493: sub WRITE
                   4494: {
                   4495:   my ($o, $buf, $len, $off) = @_;
                   4496:   my ($compressed, $status) = $o->{dh}->deflate(substr($buf, 0, $len));
                   4497:   print {$o->{handle}} $compressed if defined($compressed);
                   4498:   $o->{crc} = Compress::Zlib::crc32(substr($buf, 0, $len), $o->{crc});
                   4499:   $o->{len} += $len;
                   4500:   return $len;
                   4501: }
                   4502:
                   4503: sub CLOSE
                   4504: {
                   4505:   my ($o) = @_;
                   4506:   return if !defined($o->{dh});
                   4507:   my ($buf) = $o->{dh}->flush();
                   4508:   $buf .= pack("V V", $o->{crc}, $o->{len});
                   4509:   print {$o->{handle}} $buf;
                   4510:   undef $o->{dh};
                   4511: }
                   4512:
                   4513: sub DESTROY
                   4514: {
                   4515:   my ($o) = @_;
                   4516:   CLOSE($o);
1.1       jfieber  4517: }
3.149     scop     4518:
                   4519: # Local variables:
                   4520: # indent-tabs-mode: nil
                   4521: # cperl-indent-level: 2
                   4522: # End:

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