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Annotation of cvsweb/cvsweb.cgi, Revision 3.151

3.55      knu         1: #!/usr/bin/perl -wT
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
3.148     scop       24: #           (c) 2002-2003 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:
3.138     scop       54: require 5.005_03;
3.55      knu        55:
3.1       knu        56: use strict;
1.21      wosch      57:
3.1       knu        58: use vars qw (
3.121     scop       59:   $VERSION
3.144     scop       60:   $config $allow_version_select
3.120     scop       61:   @CVSrepositories @CVSROOT %CVSROOT %CVSROOTdescr
                     62:   %MIRRORS %DEFAULTVALUE %ICONS %MTYPES
                     63:   @DIFFTYPES %DIFFTYPES @LOGSORTKEYS %LOGSORTKEYS
3.129     scop       64:   %alltags %fileinfo %tags @branchnames %nameprinted
3.120     scop       65:   %symrev %revsym @allrevisions %date %author @revdisplayorder
                     66:   @revisions %state %difflines %log %branchpoint @revorder
                     67:   $prcgi @prcategories $re_prcategories $prkeyword $re_prkeyword $mancgi
                     68:   $checkoutMagic $doCheckout $scriptname $scriptwhere
                     69:   $where $pathinfo $Browser $nofilelinks $maycompress
3.129     scop       70:   @stickyvars @unsafevars %funcline_regexp $is_mod_perl
3.120     scop       71:   $is_links $is_lynx $is_w3m $is_msie $is_mozilla3 $is_textbased
                     72:   %input $query $barequery $sortby $bydate $byrev $byauthor
                     73:   $bylog $byfile $defaultDiffType $logsort $cvstree $cvsroot
                     74:   $mimetype $charset $output_filter $defaultTextPlain $defaultViewable
3.132     scop       75:   $command_path %CMD $allow_compress $backicon $diricon $fileicon $graphicon
3.129     scop       76:   $fullname $newname $cvstreedefault $logo $defaulttitle $address
3.131     scop       77:   $long_intro $short_instruction $shortLogLen $show_author
3.129     scop       78:   $tablepadding $hr_breakable $showfunc $hr_ignwhite $hr_ignkeysubst
                     79:   $inputTextSize $mime_types $allow_annotate $allow_markup
3.120     scop       80:   $allow_log_extra $allow_dir_extra $allow_source_extra
3.132     scop       81:   $allow_cvsgraph $cvsgraph_config $use_java_script $open_extern_window
3.120     scop       82:   $extern_window_width $extern_window_height $edit_option_form
3.144     scop       83:   $show_subdir_lastmod $show_log_in_markup $preformat_in_markup
3.120     scop       84:   $tabstop $state $annTable $sel $curbranch @HideModules @ForbiddenFiles
                     85:   $module $use_descriptions %descriptions @mytz $dwhere $moddate
3.139     scop       86:   $use_moddate $has_zlib $gzip_open $file_list_len
3.120     scop       87:   $allow_tar @tar_options @gzip_options @zip_options @cvs_options
3.128     scop       88:   @annotate_options $LOG_FILESEPARATOR $LOG_REVSEPARATOR
3.144     scop       89:   $tmpdir $HTML_DOCTYPE $HTML_META $cssurl $TempTemplate $CSS
3.148     scop       90:   $CvsWebMarkupRE $allow_enscript @enscript_options %enscript_types
3.1       knu        91: );
                     92:
3.125     scop       93: # TODO:
                     94: #   Maybe "use filetest 'access'" on perl >= 5.6 for better -X checks.
                     95: #($] >= 5.006) and eval "use filetest 'access'";
                     96:
3.138     scop       97: use Cwd            qw(abs_path);
                     98: use File::Basename qw();
                     99: use File::Temp     qw(tempdir);
                    100: use IO::Pipe       qw();
                    101: use IPC::Open2     qw(open2);
                    102: use Time::Local    qw();
3.122     scop      103:
                    104: # -----------------------------------------------------------------------------
                    105:
                    106: # All global initialization that can be done in compile time should go to
                    107: # the BEGIN block.  Persistent environments, such as mod_perl, will benefit
                    108: # from this.
                    109:
                    110: BEGIN
                    111: {
                    112:   $VERSION = '3.0-dev';
                    113:
                    114:   $HTML_DOCTYPE =
                    115:     '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">';
                    116:
                    117:   $HTML_META = <<EOM;
                    118: <meta name="robots" content="nofollow">
                    119: <meta name="generator" content="FreeBSD-CVSweb $VERSION">
                    120: <meta http-equiv="Content-Script-Type" content="text/javascript">
                    121: <meta http-equiv="Content-Style-Type" content="text/css">
                    122: EOM
                    123:
                    124:   # Check if the zlib C library interface is installed, and if yes,
                    125:   # we can avoid using the extra gzip process.
                    126:   eval { require Compress::Zlib; };
                    127:   $has_zlib = !$@;
                    128:
                    129:   $is_mod_perl = defined($ENV{MOD_PERL});
                    130:
                    131:   $tmpdir = $ENV{TMPDIR} || '/var/tmp';
                    132:
3.138     scop      133:   $TempTemplate = '.cvsweb.XXXXXXXX';
                    134:
3.122     scop      135:   $LOG_FILESEPARATOR = qr/^={77}$/o;
                    136:   $LOG_REVSEPARATOR  = qr/^-{28}$/o;
3.146     scop      137:
                    138:   $CvsWebMarkupRE = qr/^text\/(x-cvsweb|vnd\.viewcvs)-markup$/io;
3.122     scop      139: }
                    140:
                    141: # -----------------------------------------------------------------------------
                    142:
3.12      knu       143: sub printDiffSelect($);
3.37      knu       144: sub printDiffLinks($$);
                    145: sub printLogSortSelect($);
3.12      knu       146: sub findLastModifiedSubdirs(@);
3.36      knu       147: sub htmlify_sub(&$);
3.12      knu       148: sub htmlify($;$);
3.20      knu       149: sub spacedHtmlText($;$);
3.12      knu       150: sub link($$);
                    151: sub revcmp($$);
3.103     knu       152: sub fatal($$@);
3.12      knu       153: sub redirect($);
                    154: sub safeglob($);
3.58      knu       155: sub search_path($);
3.12      knu       156: sub getMimeTypeFromSuffix($);
3.24      knu       157: sub head($;$);
                    158: sub scan_directives(@);
3.86      knu       159: sub openOutputFilter();
3.133     scop      160: sub doAnnotate($);
3.12      knu       161: sub doCheckout($$);
3.132     scop      162: sub doGraph($);
                    163: sub doGraphView($);
3.12      knu       164: sub cvswebMarkup($$$);
                    165: sub viewable($);
                    166: sub doDiff($$$$$$);
                    167: sub getDirLogs($$@);
                    168: sub readLog($;$);
                    169: sub printLog($;$);
                    170: sub doLog($);
                    171: sub flush_diff_rows($$$$);
3.144     scop      172: sub human_readable_diff($$);
3.12      knu       173: sub navigateHeader($$$$$);
                    174: sub plural_write($$);
                    175: sub readableTime($$);
                    176: sub clickablePath($$);
                    177: sub chooseCVSRoot();
                    178: sub chooseMirror();
                    179: sub fileSortCmp();
                    180: sub download_url($$;$);
                    181: sub download_link($$$;$);
3.132     scop      182: sub graph_link($$;$);
3.140     scop      183: sub toggleQuery($;$);
3.12      knu       184: sub urlencode($);
3.35      knu       185: sub htmlquote($);
3.36      knu       186: sub htmlunquote($);
3.48      knu       187: sub hrefquote($);
3.12      knu       188: sub http_header(;$);
                    189: sub html_header($);
                    190: sub html_footer();
                    191: sub link_tags($);
3.81      knu       192: sub forbidden_file($);
3.12      knu       193: sub forbidden_module($);
                    194:
3.1       knu       195: ##### Start of Configuration Area ########
3.122     scop      196:
3.142     scop      197: # Get rid of unsafe environment vars.  Don't do this in BEGIN...
                    198: delete(@ENV{qw(PATH IFS CDPATH ENV BASH_ENV)});
3.59      knu       199:
3.122     scop      200: my ($mydir) = (File::Basename::dirname($0) =~ /(.*)/);    # untaint
3.58      knu       201:
3.12      knu       202: # == EDIT this ==
3.28      knu       203: # Locations to search for user configuration, in order:
3.80      knu       204: for ("$mydir/cvsweb.conf", '/usr/local/etc/cvsweb/cvsweb.conf') {
3.120     scop      205:   if (defined($_) && -r $_) {
                    206:     $config = $_;
                    207:     last;
                    208:   }
3.11      knu       209: }
3.122     scop      210: undef $mydir;
3.1       knu       211:
                    212: # == Configuration defaults ==
                    213: # Defaults for configuration variables that shouldn't need
                    214: # to be configured..
                    215: $allow_version_select = 1;
3.120     scop      216: $allow_log_extra      = 1;
3.1       knu       217:
                    218: ##### End of Configuration Area   ########
                    219:
                    220: ######## Configuration variables #########
                    221: # These are defined to allow checking with perl -cw
3.120     scop      222:
3.80      knu       223: @CVSrepositories = @CVSROOT = %CVSROOT = %MIRRORS = %DEFAULTVALUE = %ICONS =
3.129     scop      224:   %MTYPES = %tags = %alltags = %fileinfo = ();
3.120     scop      225:
3.129     scop      226: $cvstreedefault = $logo = $defaulttitle =
3.120     scop      227:   $address = $long_intro = $short_instruction = $shortLogLen = $show_author =
3.131     scop      228:   $tablepadding = $hr_breakable = $showfunc = $hr_ignwhite =
3.129     scop      229:   $hr_ignkeysubst = $inputTextSize = $mime_types = $allow_annotate =
3.120     scop      230:   $allow_markup = $use_java_script = $open_extern_window =
                    231:   $extern_window_width = $extern_window_height = $edit_option_form =
3.144     scop      232:   $show_subdir_lastmod = $show_log_in_markup =
3.129     scop      233:   $tabstop = $use_moddate = $moddate =
3.122     scop      234:   $gzip_open = undef;
3.32      knu       235:
3.37      knu       236: @DIFFTYPES = qw(h H u c s);
                    237: @DIFFTYPES{@DIFFTYPES} = (
3.120     scop      238:   {
                    239:     'descr'   => 'colored',
                    240:     'opts'    => ['-u'],
                    241:     'colored' => 1,
                    242:   },
                    243:   {
                    244:     'descr'   => 'long colored',
                    245:     'opts'    => ['--unified=15'],
                    246:     'colored' => 1,
                    247:   },
                    248:   {
                    249:     'descr'   => 'unified',
                    250:     'opts'    => ['-u'],
                    251:     'colored' => 0,
                    252:   },
                    253:   {
                    254:     'descr'   => 'context',
                    255:     'opts'    => ['-c'],
                    256:     'colored' => 0,
                    257:   },
                    258:   {
                    259:     'descr'   => 'side by side',
                    260:     'opts'    => ['--side-by-side', '--width=164'],
                    261:     'colored' => 0,
                    262:   },
3.80      knu       263: );
3.37      knu       264:
                    265: @LOGSORTKEYS = qw(cvs date rev);
                    266: @LOGSORTKEYS{@LOGSORTKEYS} = (
3.120     scop      267:   {'descr' => 'Not sorted',},
                    268:   {'descr' => 'Commit date',},
                    269:   {'descr' => 'Revision',},
3.80      knu       270: );
3.37      knu       271:
3.1       knu       272: ##### End of configuration variables #####
                    273:
3.120     scop      274: $checkoutMagic =  "~checkout~";
                    275: $pathinfo      =  defined($ENV{PATH_INFO}) ? $ENV{PATH_INFO} : '';
                    276: $where         =  $pathinfo;
                    277: $doCheckout    =  ($where =~ m|^/$checkoutMagic/|);
                    278: $where         =~ s|^/$checkoutMagic/|/|;
                    279: $where         =~ s|^/||;
                    280: $scriptname    =  defined($ENV{SCRIPT_NAME}) ? $ENV{SCRIPT_NAME} : '';
                    281: $scriptname    =~ s|^/*|/|;
3.63      knu       282:
3.64      knu       283: # Let's workaround thttpd's stupidity..
3.63      knu       284: if ($scriptname =~ m|/$|) {
3.120     scop      285:   $pathinfo .= '/';
                    286:   my $re = quotemeta $pathinfo;
                    287:   $scriptname =~ s/$re$//;
3.63      knu       288: }
                    289:
3.120     scop      290: $scriptwhere  = $scriptname;
3.63      knu       291: $scriptwhere .= '/' . urlencode($where);
                    292: $where = '/' if ($where eq '');
3.3       knu       293:
3.1       knu       294: # in lynx, it it very annoying to have two links
                    295: # per file, so disable the link at the icon
                    296: # in this case:
3.120     scop      297: $Browser     = $ENV{HTTP_USER_AGENT} || '';
3.80      knu       298: $is_links    = ($Browser =~ m`^Links `);
                    299: $is_lynx     = ($Browser =~ m`^Lynx/`i);
                    300: $is_w3m      = ($Browser =~ m`^w3m/`i);
                    301: $is_msie     = ($Browser =~ m`MSIE`);
3.5       knu       302: $is_mozilla3 = ($Browser =~ m`^Mozilla/[3-9]`);
3.3       knu       303:
3.34      knu       304: $is_textbased = ($is_links || $is_lynx || $is_w3m);
3.5       knu       305:
                    306: $nofilelinks = $is_textbased;
3.1       knu       307:
                    308: # newer browsers accept gzip content encoding
                    309: # and state this in a header
                    310: # (netscape did always but didn't state it)
                    311: # It has been reported that these
                    312: #  braindamaged MS-Internet Exploders claim that they
                    313: # accept gzip .. but don't in fact and
                    314: # display garbage then :-/
3.23      knu       315: # Turn off gzip if running under mod_perl and no zlib is available,
                    316: # piping does not work as expected inside the server.
3.120     scop      317: $maycompress = (
                    318:   ((defined($ENV{HTTP_ACCEPT_ENCODING})
                    319:     && $ENV{HTTP_ACCEPT_ENCODING} =~ /gzip/)
                    320:    || $is_mozilla3)
                    321:   && !$is_msie
                    322:   && !($is_mod_perl && !$has_zlib)
                    323: );
3.1       knu       324:
                    325: # put here the variables we need in order
                    326: # to hold our state - they will be added (with
3.12      knu       327: # their current value) to any link/query string
3.1       knu       328: # you construct
3.149     scop      329: @stickyvars = qw(cvsroot hideattic ignorecase sortby logsort f only_with_tag
                    330:                  ln);
3.97      knu       331: @unsafevars = qw(logsort only_with_tag r1 r2 rev sortby tr1 tr2);
1.1       jfieber   332:
3.1       knu       333: if (-f $config) {
3.120     scop      334:   do "$config"
                    335:     or fatal("500 Internal Error",
                    336:              'Error in loading configuration file: %s<br><br>%s<br>',
                    337:              $config, $@);
3.27      knu       338: } else {
3.120     scop      339:   fatal("500 Internal Error",
                    340:         'Configuration not found.  Set the variable <code>$config</code> in cvsweb.cgi to your <b>cvsweb.conf</b> configuration file first.');
3.1       knu       341: }
                    342:
3.144     scop      343: $CSS = $cssurl ?
                    344:   sprintf("<link rel=\"stylesheet\" type=\"text/css\" href=\"%s\">\n",
                    345:           htmlquote($cssurl)) : '';
                    346:
3.1       knu       347: undef %input;
3.3       knu       348: $query = $ENV{QUERY_STRING};
                    349:
3.12      knu       350: if (defined($query) && $query ne '') {
3.120     scop      351:   foreach (split (/&/, $query)) {
                    352:     y/+/ /;
                    353:     s/%(..)/sprintf("%c", hex($1))/ge;    # unquote %-quoted
                    354:     if (/(\S+)=(.*)/) {
                    355:       $input{$1} = $2 if ($2 ne "");
                    356:     } else {
                    357:       $input{$_}++;
                    358:     }
                    359:   }
1.7       fenner    360: }
1.10      wosch     361:
3.12      knu       362: # For backwards compability, set only_with_tag to only_on_branch if set.
3.1       knu       363: $input{only_with_tag} = $input{only_on_branch}
3.120     scop      364:   if (defined($input{only_on_branch}));
3.97      knu       365:
                    366: # Prevent cross-site scripting
                    367: foreach (@unsafevars) {
3.120     scop      368:
                    369:   # Colons are needed in diffs between tags.
                    370:   if (defined($input{$_}) && $input{$_} =~ /[^\w\-.:]/) {
                    371:     fatal("500 Internal Error", 'Malformed query (%s=%s)', $_, $input{$_});
                    372:   }
3.97      knu       373: }
                    374:
                    375: if (defined($input{"content-type"})) {
3.146     scop      376:   fatal('500 Internal Error', 'Unsupported content-type')
                    377:     if ($input{"content-type"} !~ /^[-0-9A-Za-z]+\/[-0-9A-Za-z\.]+$/);
3.97      knu       378: }
1.10      wosch     379:
3.1       knu       380: $DEFAULTVALUE{'cvsroot'} = $cvstreedefault;
1.10      wosch     381:
3.120     scop      382: while (my ($key, $defval) = each %DEFAULTVALUE) {
3.80      knu       383:
3.120     scop      384:   # Replace not given parameters with defaults.
                    385:   next unless (defined($defval)
3.121     scop      386:                && (!defined($input{$key}) || $input{$key} eq ''));
3.120     scop      387:
                    388:   # Empty checkboxes in forms return nothing, so we define a helper variable
                    389:   # in these forms (copt) which indicates that we just set parameters with a
                    390:   # checkbox.
                    391:   if (defined($input{'copt'})) {
                    392:
                    393:     # 'copt' is defined -> the result of empty input checkbox
                    394:     # -> set to zero (disable) if default is a boolean (0|1).
                    395:     $input{$key} = 0 if ($defval eq '0' || $defval eq '1');
                    396:
                    397:   } else {
                    398:
                    399:     # 'copt' isn't defined --> empty input is not the result
                    400:     # of empty input checkbox --> set default.
                    401:     $input{$key} = $defval;
                    402:   }
1.10      wosch     403: }
3.12      knu       404:
3.1       knu       405: $barequery = "";
3.31      knu       406: my @barequery;
3.1       knu       407: foreach (@stickyvars) {
3.80      knu       408:
3.120     scop      409:   # construct a query string with the sticky non default parameters set
                    410:   if (defined($input{$_})
                    411:       && $input{$_} ne ''
                    412:       && !(defined($DEFAULTVALUE{$_}) && $input{$_} eq $DEFAULTVALUE{$_}))
                    413:   {
                    414:     push @barequery, join ('=', urlencode($_), urlencode($input{$_}));
                    415:   }
3.1       knu       416: }
3.80      knu       417:
3.1       knu       418: # is there any query ?
3.31      knu       419: if (@barequery) {
3.120     scop      420:   $barequery = join ('&', @barequery);
                    421:   $query     = "?$barequery";
                    422:   $barequery = "&$barequery";
3.80      knu       423: } else {
3.120     scop      424:   $query = "";
3.1       knu       425: }
3.31      knu       426: undef @barequery;
3.1       knu       427:
3.120     scop      428: if (defined($input{'path'})) {
                    429:   redirect("$scriptname/$input{path}$query");
3.57      knu       430: }
                    431:
3.1       knu       432: # get actual parameters
3.144     scop      433: {
                    434:   my $sortby = $input{sortby} || 'file';
                    435:   $bydate    = 0;
                    436:   $byrev     = 0;
                    437:   $byauthor  = 0;
                    438:   $bylog     = 0;
                    439:   $byfile    = 0;
                    440:   if ($sortby eq 'date') {
                    441:     $bydate = 1;
                    442:   } elsif ($sortby eq 'rev') {
                    443:     $byrev = 1;
                    444:   } elsif ($sortby eq 'author') {
                    445:     $byauthor = 1;
                    446:   } elsif ($sortby eq 'log') {
                    447:     $bylog = 1;
                    448:   } else {
                    449:     $byfile = 1;
                    450:   }
3.1       knu       451: }
                    452:
3.37      knu       453: $defaultDiffType = $input{'f'};
3.1       knu       454:
3.3       knu       455: $logsort = $input{'logsort'};
1.10      wosch     456:
3.95      knu       457: {
3.120     scop      458:   my @tmp = @CVSrepositories;
                    459:
                    460:   while (my ($key, $val) = splice(@tmp, 0, 2)) {
                    461:     my ($descr, $cvsroot) = @$val;
3.56      knu       462:
3.120     scop      463:     next unless -d $cvsroot;
                    464:
                    465:     $CVSROOTdescr{$key} = $descr;
                    466:     $CVSROOT{$key}      = $cvsroot;
                    467:     push(@CVSROOT, $key);
                    468:   }
3.56      knu       469: }
1.12      fenner    470:
3.1       knu       471: ## Default CVS-Tree
                    472: if (!defined($CVSROOT{$cvstreedefault})) {
3.120     scop      473:   fatal("500 Internal Error",
                    474:         '<code>$cvstreedefault</code> points to a repository (%s) not defined in <code>%%CVSROOT</code> (edit your configuration file %s)',
                    475:         $cvstreedefault,
                    476:         $config);
3.1       knu       477: }
                    478:
                    479: # alternate CVS-Tree, configured in cvsweb.conf
                    480: if ($input{'cvsroot'} && $CVSROOT{$input{'cvsroot'}}) {
3.120     scop      481:   $cvstree = $input{'cvsroot'};
3.1       knu       482: } else {
3.120     scop      483:   $cvstree = $cvstreedefault;
1.10      wosch     484: }
                    485:
3.1       knu       486: $cvsroot = $CVSROOT{$cvstree};
1.10      wosch     487:
3.1       knu       488: # create icons out of description
3.120     scop      489: foreach my $k (keys %ICONS) {
                    490:   my ($itxt, $ipath, $iwidth, $iheight) = @{$ICONS{$k}};
                    491:   no strict 'refs';
                    492:   if ($ipath) {
                    493:     ${"${k}icon"} =
                    494:       sprintf('<img src="%s" alt="%s" border="0" width="%d" height="%d">',
3.132     scop      495:               hrefquote($ipath), htmlquote($itxt), $iwidth, $iheight);
3.120     scop      496:   } else {
                    497:     ${"${k}icon"} = $itxt;
                    498:   }
1.24      wosch     499: }
                    500:
3.27      knu       501: my $config_cvstree = "$config-$cvstree";
                    502:
3.1       knu       503: # Do some special configuration for cvstrees
3.27      knu       504: if (-f $config_cvstree) {
3.120     scop      505:   do "$config_cvstree"
                    506:     or fatal("500 Internal Error",
                    507:              'Error in loading configuration file: %s<br><br>%s<br>',
                    508:              $config_cvstree, $@);
3.27      knu       509: }
3.31      knu       510: undef $config_cvstree;
3.1       knu       511:
3.120     scop      512: $re_prcategories  = '(?:' . join ('|', @prcategories) . ')' if @prcategories;
                    513: $re_prkeyword     = quotemeta($prkeyword) if defined($prkeyword);
                    514: $prcgi           .= '%s' if defined($prcgi) && $prcgi !~ /%s/;
1.24      wosch     515:
3.80      knu       516: $fullname         = "$cvsroot/$where";
                    517: $mimetype         = &getMimeTypeFromSuffix($fullname);
3.1       knu       518: $defaultTextPlain = ($mimetype eq "text/plain");
3.80      knu       519: $defaultViewable  = $allow_markup && viewable($mimetype);
3.1       knu       520:
3.63      knu       521: my $rewrite = 0;
                    522:
                    523: if ($pathinfo =~ m|//|) {
3.120     scop      524:   $pathinfo =~ y|/|/|s;
                    525:   $rewrite = 1;
3.63      knu       526: }
                    527:
3.120     scop      528: if (-d $fullname) {
                    529:   if ($pathinfo !~ m|/$|) {
                    530:     $pathinfo .= '/';
                    531:     $rewrite   = 1;
                    532:   }
                    533: } else {
                    534:   if ($pathinfo =~ m|/$|) {
                    535:     chop $pathinfo;
                    536:     $rewrite = 1;
                    537:   }
3.63      knu       538: }
                    539:
                    540: if ($rewrite) {
3.120     scop      541:   redirect($scriptname . urlencode($pathinfo) . $query);
3.1       knu       542: }
                    543:
3.63      knu       544: undef $rewrite;
                    545:
3.1       knu       546: if (!-d $cvsroot) {
3.120     scop      547:   fatal("500 Internal Error",
                    548:         '$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       549: }
                    550:
                    551: #
                    552: # See if the module is in our forbidden list.
                    553: #
                    554: $where =~ m:([^/]*):;
                    555: $module = $1;
                    556: if ($module && &forbidden_module($module)) {
3.120     scop      557:   fatal("403 Forbidden", 'Access to %s forbidden.', $where);
3.1       knu       558: }
3.46      knu       559:
                    560: #
                    561: # Handle tarball downloads before any headers are output.
                    562: #
                    563: if ($input{tarball}) {
3.120     scop      564:   fatal('403 Forbidden', 'Downloading tarballs is prohibited.')
                    565:     unless $allow_tar;
                    566:   my ($module)  =  ($where =~ m,^/?(.*),);    # untaint
                    567:   $module       =~ s,/([^/]*)$,,;
                    568:   my ($ext)     =  ($1 =~ /(\.tar\.gz|\.zip)$/);
                    569:   my ($basedir) =  ($module =~ m,([^/]+)$,);
                    570:
                    571:   if ($basedir eq '' || $module eq '') {
                    572:     fatal('500 Internal Error',
                    573:           'You cannot download the top level directory.');
                    574:   }
                    575:
3.138     scop      576:   my $tmpexportdir;
                    577:   eval {
                    578:     local $SIG{__DIE__};
                    579:     $tmpexportdir = tempdir($TempTemplate, DIR => $tmpdir, CLEANUP => 1);
                    580:   };
                    581:   if ($@) {
                    582:     fatal('500 Internal Error', 'Unable to make temporary directory: %s', $@);
                    583:   }
3.120     scop      584:
                    585:   my @fatal;
                    586:
                    587:   my $tag =
                    588:     (exists $input{only_with_tag} && length $input{only_with_tag})
                    589:     ? $input{only_with_tag}
                    590:     : 'HEAD';
                    591:
                    592:   $tag = 'HEAD' if $tag eq 'MAIN';
                    593:
                    594:   if (system($CMD{cvs},
                    595:              @cvs_options, '-Qd', $cvsroot, 'export', '-r', $tag, '-d',
                    596:              "$tmpexportdir/$basedir", $module))
                    597:   {
3.141     scop      598:     @fatal = ('500 Internal Error', 'cvs export failure: %s: %s', $!, $module);
3.120     scop      599:   } else {
                    600:     $| = 1;    # Essential to get the buffering right.
                    601:
                    602:     if ($ext eq '.tar.gz') {
                    603:       print "Content-Type: application/x-gzip\r\n\r\n";
                    604:
                    605:       system("$CMD{tar} @tar_options -cf - -C $tmpexportdir $basedir | $CMD{gzip} @gzip_options -c")
                    606:         and @fatal =
                    607:           ('500 Internal Error', 'tar zc failure: %s: %s', $!, $basedir);
                    608:     } elsif ($ext eq '.zip' && $CMD{zip}) {
                    609:       print "Content-Type: application/zip\r\n\r\n";
                    610:
                    611:       system("cd $tmpexportdir && $CMD{zip} @zip_options -r - $basedir")
                    612:         and @fatal =
                    613:           ('500 Internal Error', 'zip failure: %s: %s', $!, $basedir);
                    614:     } else {
                    615:       @fatal = ('500 Internal Error', 'unsupported file type');
                    616:     }
                    617:   }
3.46      knu       618:
3.138     scop      619:   # File::Temp's CLEANUP will handle cleanup of the temp dir for us.
3.46      knu       620:
3.120     scop      621:   &fatal(@fatal) if @fatal;
3.46      knu       622:
3.120     scop      623:   exit;
3.46      knu       624: }
                    625:
3.1       knu       626: ##############################
                    627: # View a directory
                    628: ###############################
3.46      knu       629: if (-d $fullname) {
3.120     scop      630:   my $dh = do { local (*DH); };
                    631:   opendir($dh, $fullname) or fatal("404 Not Found", '%s: %s', $where, $!);
                    632:   my @dir = readdir($dh);
                    633:   closedir($dh);
                    634:   my @subLevelFiles = findLastModifiedSubdirs(@dir)
                    635:     if ($show_subdir_lastmod);
3.150     scop      636:   my @unreadable = getDirLogs($cvsroot, $where, @subLevelFiles);
3.120     scop      637:
                    638:   if ($where eq '/') {
                    639:     html_header($defaulttitle);
                    640:     $long_intro =~ s/!!CVSROOTdescr!!/$CVSROOTdescr{$cvstree}/g;
                    641:     print $long_intro;
                    642:   } else {
                    643:     html_header($where);
                    644:     print $short_instruction;
                    645:   }
                    646:
                    647:   if ($use_descriptions && open(DESC, "<$cvsroot/CVSROOT/descriptions")) {
                    648:     while (<DESC>) {
                    649:       chomp;
                    650:       my ($dir, $description) = /(\S+)\s+(.*)/;
                    651:       $descriptions{$dir} = $description;
                    652:     }
                    653:     close(DESC);
                    654:   }
                    655:
                    656:   print "<p><a name=\"dirlist\"></a></p>\n";
                    657:
                    658:   # give direct access to dirs
                    659:   if ($where eq '/') {
                    660:     chooseMirror();
                    661:     chooseCVSRoot();
                    662:   } else {
                    663:     print "<p>Current directory: <b>", &clickablePath($where, 0), "</b></p>\n";
                    664:
                    665:     print "<p>Current tag: <b>", $input{only_with_tag}, "</b></p>\n"
                    666:       if $input{only_with_tag};
                    667:
                    668:   }
                    669:
                    670:   print "<hr noshade>\n";
                    671:
3.131     scop      672:   my $infocols = 0;
                    673:
                    674:   print "<table class=\"dir\" width=\"100%\" cellspacing=\"1\" cellpadding=\"$tablepadding\">\n";
                    675:   $infocols++;
3.132     scop      676:   printf "<tr>\n<th class=\"dir-header%s\" colspan=\"2\">",
                    677:     $byfile ? '-sorted' : '';
3.131     scop      678:
                    679:   if ($byfile) {
                    680:     print 'File';
                    681:   } else {
                    682:     print &link('File',
                    683:                 sprintf('./%s#dirlist', toggleQuery('sortby', 'file')));
                    684:   }
                    685:   print "</th>\n";
3.120     scop      686:
3.131     scop      687:   # Do not display the other column headers if we do not have any files
                    688:   # with revision information.
                    689:   if (scalar(%fileinfo)) {
3.120     scop      690:     $infocols++;
3.131     scop      691:     printf '<th class="dir-header%s">', $byrev ? '-sorted' : '';
3.120     scop      692:
3.131     scop      693:     if ($byrev) {
                    694:       print 'Rev.';
3.120     scop      695:     } else {
3.131     scop      696:       print &link('Rev.',
                    697:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'rev')));
3.120     scop      698:     }
                    699:     print "</th>\n";
3.131     scop      700:     $infocols++;
                    701:     printf '<th class="dir-header%s">', $bydate ? '-sorted' : '';
3.120     scop      702:
3.131     scop      703:     if ($bydate) {
                    704:       print 'Age';
                    705:     } else {
                    706:       print &link('Age',
                    707:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'date')));
                    708:     }
                    709:     print "</th>\n";
3.120     scop      710:
3.131     scop      711:     if ($show_author) {
3.120     scop      712:       $infocols++;
3.131     scop      713:       printf '<th class="dir-header%s">', $byauthor ? '-sorted' : '';
3.120     scop      714:
3.131     scop      715:       if ($byauthor) {
                    716:         print 'Author';
3.120     scop      717:       } else {
3.131     scop      718:         print
                    719:           &link('Author',
                    720:                 sprintf('./%s#dirlist', toggleQuery('sortby', 'author')));
3.120     scop      721:       }
                    722:       print "</th>\n";
3.131     scop      723:     }
                    724:     $infocols++;
                    725:     printf '<th class="dir-header%s">', $bylog ? '-sorted' : '';
3.120     scop      726:
3.131     scop      727:     if ($bylog) {
                    728:       print 'Last log entry';
                    729:     } else {
                    730:       print &link('Last log entry',
                    731:                   sprintf('./%s#dirlist', toggleQuery('sortby', 'log')));
3.120     scop      732:     }
3.131     scop      733:     print "</th>\n";
                    734:   } elsif ($use_descriptions) {
                    735:     print "<th class=\"dir-header\">Description</th>\n";
                    736:     $infocols++;
3.120     scop      737:   }
3.131     scop      738:   print "</tr>\n";
                    739:
3.120     scop      740:   my $dirrow = 0;
                    741:
                    742:   my $i;
                    743:   lookingforattic:
                    744:   for ($i = 0; $i <= $#dir; $i++) {
                    745:     if ($dir[$i] eq "Attic") {
                    746:       last lookingforattic;
                    747:     }
                    748:   }
                    749:
                    750:   if (!$input{'hideattic'}
                    751:       && ($i <= $#dir)
                    752:       && opendir($dh, $fullname . '/Attic'))
                    753:   {
                    754:     splice(@dir, $i, 1, grep((s|^|Attic/|, !m|/\.|), readdir($dh)));
                    755:     closedir($dh);
                    756:   }
                    757:
                    758:   my $hideAtticToggleLink =
                    759:     $input{'hideattic'}
                    760:     ? ''
                    761:     : &link('[Hide]', sprintf('./%s#dirlist', &toggleQuery('hideattic')));
                    762:
                    763:   # Sort without the Attic/ pathname.
                    764:   # place directories first
                    765:
                    766:   my $attic;
                    767:   my $url;
                    768:   my $fileurl;
                    769:   my $filesexists;
                    770:   my $filesfound;
                    771:
                    772:   foreach my $file (sort { &fileSortCmp } @dir) {
                    773:
                    774:     next if ($file eq '.');
                    775:
                    776:     # ignore CVS lock and stale NFS files
                    777:     next if ($file =~ /^\#cvs\.|^,|^\.nfs/); # \# for XEmacs cperl-mode...
                    778:
                    779:     # Check whether to show the CVSROOT path
                    780:     next if ($input{'hidecvsroot'} && $file eq 'CVSROOT');
                    781:
                    782:     # Check whether the module is in the restricted list
                    783:     next if ($file && &forbidden_module($file));
                    784:
3.150     scop      785:     # Is it a directory?
                    786:     my $isdir = -d "$fullname/$file";
                    787:
                    788:     # Ignore non-readable files and directories?
                    789:     next if ($input{'hidenonreadable'} && (! -r _ || ($isdir && ! -x _)));
3.120     scop      790:
                    791:     if ($file =~ s|^Attic/||) {
3.131     scop      792:       $attic = ' (in&nbsp;the&nbsp;Attic)&nbsp;' . $hideAtticToggleLink;
3.120     scop      793:     } else {
                    794:       $attic = '';
                    795:     }
                    796:
3.150     scop      797:     if ($file eq '..' || $isdir) {
3.120     scop      798:       next if ($file eq '..' && $where eq '/');
                    799:       my ($rev, $date, $log, $author, $filename) = @{$fileinfo{$file}}
                    800:         if (defined($fileinfo{$file}));
3.132     scop      801:       printf "<tr class=\"dir-row-%s\">\n<td colspan=\"2\">",
                    802:         ($dirrow % 2) ? 'even' : 'odd';
3.120     scop      803:
                    804:       if ($file eq '..') {
                    805:         $url = "../$query";
                    806:         if ($nofilelinks) {
                    807:           print $backicon;
                    808:         } else {
                    809:           print &link($backicon, $url);
                    810:         }
                    811:         print '&nbsp;', &link("Parent Directory", $url);
                    812:       } else {
                    813:         $url = './' . urlencode($file) . "/$query";
3.136     scop      814:         print '<a name="', hrefquote($file), '"></a>';
3.120     scop      815:
                    816:         if ($nofilelinks) {
                    817:           print $diricon;
                    818:         } else {
                    819:           print &link($diricon, $url);
                    820:         }
3.136     scop      821:         print '&nbsp;', &link(htmlquote("$file/"), $url), $attic;
3.120     scop      822:
                    823:         if ($file eq "Attic") {
                    824:           print "&nbsp; ";
                    825:           print &link('[Don\'t hide]',
                    826:                       sprintf('./%s#dirlist', &toggleQuery('hideattic')));
                    827:         }
                    828:       }
                    829:
                    830:       # Show last change in dir
                    831:       if ($filename) {
3.131     scop      832:         print "</td>\n<td>&nbsp;</td>\n<td>&nbsp;";
                    833:
3.120     scop      834:         if ($date) {
                    835:           print " <i>", readableTime(time() - $date, 0), "</i>";
                    836:         }
                    837:
                    838:         if ($show_author) {
3.136     scop      839:           print "</td>\n<td>&nbsp;", htmlquote($author);
3.120     scop      840:         }
3.131     scop      841:         print "</td>\n<td>&nbsp;";
3.120     scop      842:         $filename =~ s%^[^/]+/%%;
3.136     scop      843:         print htmlquote($filename), '/', $rev, '<br>';
3.120     scop      844:
                    845:         if ($log) {
                    846:           print '&nbsp;<span style="font-size: smaller">',
                    847:             &htmlify(substr($log, 0, $shortLogLen), $allow_dir_extra);
                    848:           print '...' if (length($log) > 80);
                    849:           print '</span>';
                    850:         }
                    851:       } else {
                    852:         my $dwhere = ($where ne '/' ? $where : '') . $file;
                    853:
                    854:         if ($use_descriptions && defined $descriptions{$dwhere}) {
3.131     scop      855:           print '<td colspan="', ($infocols - 1), '">&nbsp;';
3.120     scop      856:           print $descriptions{$dwhere};
                    857:
3.131     scop      858:         } elsif ($infocols > 1) {
3.120     scop      859:
                    860:           # close the row with the appropriate number of
                    861:           # columns, so that the vertical seperators are visible
                    862:           my ($cols) = $infocols;
                    863:           while ($cols > 1) {
                    864:             print "</td>\n<td>&nbsp;";
                    865:             $cols--;
                    866:           }
                    867:         }
                    868:       }
                    869:
3.131     scop      870:       print "</td>\n</tr>\n";
3.120     scop      871:       $dirrow++;
3.131     scop      872:
3.120     scop      873:     } elsif ($file =~ s/,v$//) {
                    874:
                    875:       # Skip forbidden files now so we'll give no hint
                    876:       # about their existence.  This should probably have
                    877:       # been done earlier, but it's straightforward here.
                    878:       next if forbidden_file("$fullname/$file");
                    879:
                    880:       $fileurl   = ($attic ? 'Attic/' : '') . urlencode($file);
                    881:       $url       = './' . $fileurl . $query;
                    882:       $filesexists++;
                    883:       next if (!defined($fileinfo{$file}));
                    884:       my ($rev, $date, $log, $author) = @{$fileinfo{$file}};
                    885:       $filesfound++;
3.132     scop      886:       printf "<tr class=\"dir-row-%s\">\n", ($dirrow % 2) ? 'even' : 'odd';
                    887:       printf '<td%s>', $allow_cvsgraph ? '' : ' colspan="2"';
3.120     scop      888:
                    889:       if ($nofilelinks) {
                    890:         print $fileicon;
                    891:       } else {
                    892:         print &link($fileicon, $url);
                    893:       }
                    894:       print '&nbsp;', &link(htmlquote($file), $url), $attic;
3.132     scop      895:       if ($allow_cvsgraph) {
                    896:         print '</td><td>', &graph_link($fileurl, $rev);
                    897:       }
                    898:       print "</td>\n<td width=\"30\">&nbsp;";
3.120     scop      899:       download_link($fileurl, $rev, $rev,
                    900:         $defaultViewable
                    901:         ? "text/x-cvsweb-markup"
                    902:         : undef);
3.131     scop      903:       print "</td>\n<td>&nbsp;";
3.120     scop      904:
                    905:       if ($date) {
                    906:         print " <i>", readableTime(time() - $date, 0), "</i>";
                    907:       }
                    908:       if ($show_author) {
3.136     scop      909:         print "</td>\n<td>&nbsp;", htmlquote($author);
3.120     scop      910:       }
3.131     scop      911:       print "</td>\n<td>&nbsp;";
3.120     scop      912:
                    913:       if ($log) {
                    914:         print ' <span style="font-size: smaller">',
                    915:           &htmlify(substr($log, 0, $shortLogLen), $allow_dir_extra);
                    916:         print '...' if (length $log > 80);
                    917:         print '</span>';
                    918:       }
3.131     scop      919:       print "</td>\n</tr>";
3.120     scop      920:       $dirrow++;
                    921:     }
                    922:     print "\n";
                    923:   }
                    924:
3.131     scop      925:   print "</table>\n";
3.120     scop      926:
3.150     scop      927:   if ((my $num = scalar(@unreadable)) && ! $input{hidenonreadable}) {
                    928:     printf(<<EOF, $num, htmlquote(join(', ', @unreadable)));
                    929: <p>
                    930:  <b>NOTE:</b> The following %d unreadable files were ignored:<br>
                    931:  <em>%s</em>
                    932: </p>
                    933: EOF
                    934:   }
                    935:
3.120     scop      936:   if ($filesexists && !$filesfound) {
3.150     scop      937:     my $currtag = defined($input{only_with_tag}) ?
                    938:       sprintf(' (%s)', htmlquote($input{only_with_tag})) : '';
                    939:     printf(<<EOF, $filesexists, $currtag);
                    940: <p>
                    941:  <b>NOTE:</b> There are %d files, but none matches the current tag%s.
                    942: </p>
                    943: EOF
3.120     scop      944:   }
                    945:
                    946:   if ($input{only_with_tag} && (!%tags || !$tags{$input{only_with_tag}})) {
                    947:     %tags = %alltags;
                    948:   }
                    949:
                    950:   if (scalar %tags
                    951:       || $input{only_with_tag}
                    952:       || $edit_option_form
                    953:       || defined($input{"options"}))
                    954:   {
                    955:     print "<hr size=\"1\" noshade>\n";
                    956:   }
                    957:
                    958:   if (scalar %tags || $input{only_with_tag}) {
                    959:     print "<form method=\"get\" action=\"./\">\n";
                    960:     foreach my $var (@stickyvars) {
                    961:       print "<input type=\"hidden\" name=\"$var\" value=\"$input{$var}\">\n"
                    962:         if (defined($input{$var})
                    963:             && (!defined($DEFAULTVALUE{$var})
                    964:                 || $input{$var} ne $DEFAULTVALUE{$var})
                    965:             && $input{$var} ne ""
                    966:             && $var ne 'only_with_tag');
                    967:     }
                    968:     print "<p><label for=\"only_with_tag\" accesskey=\"T\">";
                    969:     print "Show only files with tag:</label>\n";
                    970:     print "<select id=\"only_with_tag\" name=\"only_with_tag\"";
                    971:     print " onchange=\"this.form.submit()\"" if $use_java_script;
                    972:     print ">";
                    973:     print "<option value=\"\">All tags / default branch</option>\n";
                    974:
                    975:     foreach my $tag (reverse sort { lc $a cmp lc $b } keys %tags) {
3.136     scop      976:       my $selected =
                    977:         defined($input{only_with_tag}) && $input{only_with_tag} eq $tag;
                    978:       printf("<option%s>%s</option>\n",
                    979:              $selected ? ' selected' : '',
                    980:              htmlquote($tag));
3.120     scop      981:     }
                    982:     print "</select>\n";
                    983:     print " <label for=\"path\" accesskey=\"P\">";
                    984:     print "Module path or alias:</label>\n";
                    985:     printf "<input type=\"text\" id=\"path\" name=\"path\" value=\"%s\" size=\"15\">\n", htmlquote($where);
                    986:     print "<input type=\"submit\" value=\"Go\" accesskey=\"G\"></p>\n";
                    987:     print "</form>\n";
                    988:   }
                    989:
                    990:   if ($allow_tar) {
                    991:     my ($basefile) = ($where =~ m,(?:.*/)?([^/]+),);
                    992:
                    993:     if (defined($basefile) && $basefile ne '') {
                    994:       print "<hr noshade>\n",
                    995:         "<div align=\"center\">Download this directory in ";
                    996:
                    997:       # Mangle the filename so browsers show a reasonable
                    998:       # filename to download.
                    999:       print
                   1000:         &link("tarball",
                   1001:               "./$basefile.tar.gz$query" . ($query ? "&" : "?") . "tarball=1");
                   1002:       if ($CMD{zip}) {
                   1003:         print " or ",
                   1004:           &link("zip archive",
                   1005:                 "./$basefile.zip$query" . ($query ? "&" : "?") . "tarball=1");
                   1006:       }
                   1007:       print "</div>\n";
                   1008:     }
                   1009:   }
                   1010:
                   1011:   if ($edit_option_form || defined($input{"options"})) {
                   1012:
                   1013:     my $formwhere = $scriptwhere;
                   1014:     $formwhere =~ s|Attic/?$|| if ($input{'hideattic'});
                   1015:
3.149     scop     1016:     print <<EOF;
                   1017: <form method="get" action="${formwhere}">
                   1018: <input type="hidden" name="copt" value="1">
                   1019: EOF
3.120     scop     1020:     if ($cvstree ne $cvstreedefault) {
                   1021:       print "<input type=\"hidden\" name=\"cvsroot\" value=\"$cvstree\">\n";
                   1022:     }
3.149     scop     1023:     print <<EOF;
                   1024: <center>
                   1025: <table cellpadding="0" cellspacing="0">
                   1026: <tr class="dir-header">
                   1027:  <th style="text-align: center">Preferences</th>
                   1028: </tr>
                   1029: <tr>
                   1030: <td>
                   1031: <label for="sortby" accesskey="F">Sort files by:
                   1032: <select id="sortby" name="sortby">
                   1033: <option value="">File</option>
                   1034: EOF
3.120     scop     1035:     print "<option", $bydate ? " selected" : "",
                   1036:       " value=\"date\">Age</option>\n";
                   1037:     print "<option", $byauthor ? " selected" : "",
                   1038:       " value=\"author\">Author</option>\n"
3.140     scop     1039:         if $show_author;
3.120     scop     1040:     print "<option", $byrev ? " selected" : "",
                   1041:       " value=\"rev\">Revision</option>\n";
                   1042:     print "<option", $bylog ? " selected" : "",
                   1043:       " value=\"log\">Log message</option>\n";
3.140     scop     1044:     print "</select></label>,\n";
                   1045:     print '<label for="ignorecase" accesskey="I">case-insensitive: ';
                   1046:     print "<input id=\"ignorecase\" name=\"ignorecase\" type=\"checkbox\"",
                   1047:       $input{'ignorecase'} ? " checked" : "", " value=\"1\"></label>\n";
                   1048:     print "<label for=\"logsort\" accesskey=\"L\">Sort log by: ";
3.120     scop     1049:     printLogSortSelect(0);
3.140     scop     1050:     print "</label></td>\n</tr>\n";
                   1051:     print "<tr>\n<td><label for=\"f\" accesskey=\"D\">Diff format: ";
3.120     scop     1052:     printDiffSelect(0);
3.140     scop     1053:     print '</label> ';
                   1054:     print '<label for="hideattic" accesskey="A">Hide files in Attic: ';
3.120     scop     1055:     print "<input id=\"hideattic\" name=\"hideattic\" type=\"checkbox\"",
3.149     scop     1056:       $input{'hideattic'} ? ' checked' : '',
                   1057:         " value=\"1\"></label></td>\n</tr>\n";
                   1058:     print "<tr>\n<td><label for=\"ln\" accesskey=\"N\">Show line numbers: ";
                   1059:     print "<input id=\"ln\" name=\"ln\" type=\"checkbox\"",
                   1060:       $input{ln} ? ' checked' : '', " value=\"1\"></label></td>\n</tr>\n";
                   1061:     print <<EOF;
                   1062: <tr>
                   1063:  <td align="center">
                   1064:   <input type="submit" value="Change Options" accesskey="C">
                   1065:  </td>
                   1066: </tr>
                   1067: </table>
                   1068: </center>
                   1069: </form>
                   1070: EOF
3.120     scop     1071:   }
                   1072:   html_footer();
3.80      knu      1073: }
3.1       knu      1074:
                   1075: ###############################
                   1076: # View Files
                   1077: ###############################
3.80      knu      1078: elsif (-f $fullname . ',v') {
3.114     scop     1079:
3.120     scop     1080:   if (forbidden_file($fullname)) {
                   1081:     fatal('403 Forbidden',
                   1082:           'Access forbidden.  This file is mentioned in @ForbiddenFiles');
                   1083:     return;
                   1084:   }
                   1085:
                   1086:   if (defined($input{'rev'}) || $doCheckout) {
                   1087:     &doCheckout($fullname, $input{'rev'});
                   1088:     gzipclose();
                   1089:     exit;
                   1090:   }
                   1091:
                   1092:   if (defined($input{'annotate'}) && $allow_annotate) {
                   1093:     &doAnnotate($input{'annotate'});
                   1094:     gzipclose();
                   1095:     exit;
                   1096:   }
                   1097:
                   1098:   if (defined($input{'r1'}) && defined($input{'r2'})) {
                   1099:     &doDiff($fullname,    $input{'r1'},  $input{'tr1'},
                   1100:             $input{'r2'}, $input{'tr2'}, $input{'f'});
                   1101:     gzipclose();
                   1102:     exit;
                   1103:   }
3.132     scop     1104:
                   1105:   if (defined($input{'graph'}) && $allow_cvsgraph) {
                   1106:     if (defined($input{'makeimage'})) {
                   1107:       &doGraph($input{'graph'});
                   1108:     } else {
                   1109:       &doGraphView($input{'graph'});
                   1110:     }
                   1111:     gzipclose();
                   1112:     exit;
                   1113:   }
                   1114:
3.120     scop     1115:   &doLog($fullname);
                   1116:
                   1117:   ##############################
                   1118:   # View Diff
                   1119:   ##############################
                   1120: } elsif ($fullname =~ s/\.diff$//
                   1121:          && -f $fullname . ",v"
                   1122:          && $input{'r1'}
                   1123:          && $input{'r2'})
                   1124: {
                   1125:
                   1126:   # $where-diff-removal if 'cvs rdiff' is used
                   1127:   # .. but 'cvs rdiff'doesn't support some options
                   1128:   # rcsdiff does (-w and -p), so it is disabled
                   1129:   # $where =~ s/\.diff$//;
                   1130:
                   1131:   # Allow diffs using the ".diff" extension
                   1132:   # so that browsers that default to the URL
                   1133:   # for a save filename don't save diff's as
                   1134:   # e.g. foo.c
                   1135:   &doDiff($fullname,    $input{'r1'},  $input{'tr1'},
                   1136:           $input{'r2'}, $input{'tr2'}, $input{'f'});
                   1137:   gzipclose();
                   1138:   exit;
                   1139: } elsif (($newname = $fullname) =~ s|/([^/]+)$|/Attic/$1|
                   1140:   && -f $newname . ",v")
                   1141: {
                   1142:
                   1143:   # The file has been removed and is in the Attic.
                   1144:   # Send a redirect pointing to the file in the Attic.
                   1145:   (my $newplace = $scriptwhere) =~ s|/([^/]+)$|/Attic/$1|;
                   1146:   if ($ENV{QUERY_STRING} ne "") {
                   1147:     redirect("${newplace}?$ENV{QUERY_STRING}");
                   1148:   } else {
                   1149:     redirect($newplace);
                   1150:   }
                   1151:   exit;
3.80      knu      1152: } elsif (0 && (my @files = &safeglob($fullname . ",v"))) {
3.120     scop     1153:   http_header("text/plain");
                   1154:   print "You matched the following files:\n";
                   1155:   print join ("\n", @files);
3.80      knu      1156:
3.120     scop     1157:   # Find the tags from each file
                   1158:   # Display a form offering diffs between said tags
3.80      knu      1159: } else {
3.120     scop     1160:   my $fh = do { local (*FH); };
                   1161:   my ($xtra, $module);
3.80      knu      1162:
3.120     scop     1163:   # Assume it's a module name with a potential path following it.
                   1164:   $xtra = (($module = $where) =~ s|/.*||) ? $& : '';
3.80      knu      1165:
3.120     scop     1166:   # Is there an indexed version of modules?
                   1167:   if (open($fh, "< $cvsroot/CVSROOT/modules")) {
                   1168:     while (<$fh>) {
                   1169:       if (/^(\S+)\s+(\S+)/o
                   1170:           && $module eq $1
                   1171:           && -d "$cvsroot/$2"
                   1172:           && $module ne $2)
                   1173:       {
                   1174:         redirect("$scriptname/$2$xtra$query");
                   1175:       }
                   1176:     }
                   1177:   }
                   1178:   fatal("404 Not Found", '%s: no such file or directory', $where);
3.80      knu      1179: }
3.23      knu      1180:
3.25      knu      1181: gzipclose();
3.80      knu      1182:
3.1       knu      1183: ## End MAIN
                   1184:
3.120     scop     1185: sub printDiffSelect($)
                   1186: {
                   1187:   my ($use_java_script) = @_;
                   1188:   my $f = $input{'f'};
                   1189:
                   1190:   print '<select id="f" name="f"';
                   1191:   print ' onchange="this.form.submit()"' if $use_java_script;
                   1192:   print ">\n";
                   1193:
                   1194:   local $_;
                   1195:   for (@DIFFTYPES) {
                   1196:     printf("<option value=\"%s\"%s>%s</option>\n",
                   1197:            $_, $f eq $_ ? ' selected' : '',
                   1198:            "\u$DIFFTYPES{$_}{'descr'}");
                   1199:   }
                   1200:
                   1201:   print "</select>";
                   1202: }
                   1203:
                   1204: sub printLogSortSelect($)
                   1205: {
                   1206:   my ($use_java_script) = @_;
                   1207:
                   1208:   print '<select id="logsort" name="logsort"';
                   1209:   print ' onchange="this.form.submit()"' if $use_java_script;
                   1210:   print ">\n";
                   1211:
                   1212:   local $_;
                   1213:   for (@LOGSORTKEYS) {
                   1214:     printf("<option value=\"%s\"%s>%s</option>\n",
                   1215:            $_, $logsort eq $_ ? ' selected' : '',
                   1216:            "\u$LOGSORTKEYS{$_}{'descr'}");
                   1217:   }
                   1218:
                   1219:   print "</select>";
                   1220: }
                   1221:
                   1222: sub findLastModifiedSubdirs(@)
                   1223: {
                   1224:   my (@dirs) = @_;
                   1225:   my ($dirname, @files);
                   1226:
                   1227:   foreach $dirname (@dirs) {
                   1228:     next if ($dirname eq ".");
                   1229:     next if ($dirname eq "..");
                   1230:     my ($dir) = "$fullname/$dirname";
                   1231:     next if (!-d $dir);
                   1232:
                   1233:     my ($lastmod)     = undef;
                   1234:     my ($lastmodtime) = undef;
                   1235:     my $dh = do { local (*DH); };
                   1236:
                   1237:     opendir($dh, $dir) or next;
                   1238:     my (@filenames) = readdir($dh);
                   1239:     closedir($dh);
                   1240:
                   1241:     foreach my $filename (@filenames) {
                   1242:       $filename = "$dirname/$filename";
                   1243:       my ($file) = "$fullname/$filename";
                   1244:       next if ($filename !~ /,v$/ || !-f $file);
                   1245:
                   1246:       # Skip forbidden files.
                   1247:       (my $f = $file) =~ s/,v$//;
                   1248:       next if forbidden_file($f);
                   1249:
                   1250:       $filename =~ s/,v$//;
                   1251:       my $modtime = -M $file;
                   1252:
                   1253:       if (!defined($lastmod) || $modtime < $lastmodtime) {
                   1254:         $lastmod     = $filename;
                   1255:         $lastmodtime = $modtime;
                   1256:       }
                   1257:     }
                   1258:     push (@files, $lastmod) if (defined($lastmod));
                   1259:   }
                   1260:   return @files;
                   1261: }
                   1262:
                   1263: sub htmlify_sub(&$)
                   1264: {
                   1265:   (my $proc, local $_) = @_;
                   1266:   my @a = split (m`(<a [^>]+>[^<]*</a>)`i);
                   1267:   my $linked;
                   1268:   my $result = '';
                   1269:
                   1270:   while (($_, $linked) = splice(@a, 0, 2)) {
                   1271:     &$proc();
                   1272:     $result .= $_      if defined($_);
                   1273:     $result .= $linked if defined($linked);
                   1274:   }
                   1275:
                   1276:   $result;
                   1277: }
                   1278:
                   1279: sub htmlify($;$)
                   1280: {
                   1281:   (local $_, my $extra) = @_;
                   1282:
                   1283:   $_ = htmlquote($_);
                   1284:
                   1285:   # get URL's as link
                   1286:   s{
3.130     scop     1287:     ((https?|ftp)://.+?)([\s\']|&(quot|[lg]t);)
3.120     scop     1288:    }{
3.130     scop     1289:      &link($1, htmlunquote($1)) . $3
3.120     scop     1290:    }egx;
                   1291:
                   1292:   # get e-mails as link
                   1293:   $_ = htmlify_sub {
                   1294:     s<
                   1295:       [\w+=\-.!]+@[\w\-]+(\.[\w\-]+)+
                   1296:      ><
                   1297:        &link($&, "mailto:$&")
                   1298:      >egix;
                   1299:   } $_;
                   1300:
                   1301:   if ($extra) {
                   1302:
                   1303:     # get PR #'s as link: "PR#nnnn" "PR: nnnn, ..." "PR nnnn, ..." "bin/nnnn"
                   1304:     if (defined($prcgi) && defined($re_prkeyword)) {
                   1305:       my $prev;
                   1306:
                   1307:       do {
                   1308:         $prev = $_;
                   1309:
                   1310:         $_ = htmlify_sub {
                   1311:           s{
                   1312:             (\b$re_prkeyword[:\#]?\s*
                   1313:              (?:
                   1314:               \#?
                   1315:               \d+[,\s]\s*
                   1316:              )*
                   1317:              \#?)
                   1318:             (\d+)\b
                   1319:            }{
                   1320:              $1 . &link($2, sprintf($prcgi, $2))
                   1321:            }egix;
                   1322:         } $_;
                   1323:       } while ($_ ne $prev);
                   1324:
                   1325:       if (defined($re_prcategories)) {
                   1326:         $_ = htmlify_sub {
                   1327:           s{
                   1328:             (\b$re_prcategories/(\d+)\b)
                   1329:            }{
                   1330:              &link($1, sprintf($prcgi, $2))
                   1331:            }egox;
                   1332:         } $_;
                   1333:       }
                   1334:     }
                   1335:
                   1336:     # get manpage specs as link: "foo.1" "foo(1)"
                   1337:     if (defined($mancgi)) {
                   1338:       $_ = htmlify_sub {
                   1339:         s{
3.143     knu      1340:           (
                   1341:            \b ( \w[\w+\-.]* (?: ::\w[\w+\-.]*)* )
3.120     scop     1342:            (?:
3.143     knu      1343:             \( ([0-9n]) \) \B
3.120     scop     1344:             |
3.143     knu      1345:             \. ([0-9n]) \b
3.120     scop     1346:            )
                   1347:           )
                   1348:          }{
3.149     scop     1349:             my($text, $name, $section) = ($1, $2, defined($3) ? $3 : $4);
                   1350:             ($name =~ /[A-Za-z]/ && $name !~ /\.(:|$)/)
                   1351:              ? &link($text, sprintf($mancgi, $section, $name))
                   1352:               : $text;
3.120     scop     1353:          }egx;
                   1354:       } $_;
                   1355:     }
                   1356:   }
                   1357:
                   1358:   $_;
                   1359: }
                   1360:
                   1361: sub spacedHtmlText($;$)
                   1362: {
                   1363:   local $_ = $_[0];
                   1364:   my $ts = $_[1] || $tabstop;
                   1365:
                   1366:   # Cut trailing spaces and tabs
                   1367:   s/[ \t]+$//;
                   1368:
                   1369:   if (defined($ts)) {
                   1370:
                   1371:     # Expand tabs
                   1372:     1 while s/\t+/' ' x (length($&) * $ts - length($`) % $ts)/e;
                   1373:   }
                   1374:
                   1375:   # replace <tab> and <space> (\001 is to protect us from htmlify)
                   1376:   # gzip can make excellent use of this repeating pattern :-)
                   1377:   if ($hr_breakable) {
                   1378:
                   1379:     # make every other space 'breakable'
                   1380:     s/  / \001nbsp;/g;    # 2 * <space>
                   1381:                           # leave single space as it is
                   1382:   } else {
                   1383:     s/ /\001nbsp;/g;
                   1384:   }
                   1385:
                   1386:   $_ = htmlify($_, $allow_source_extra);
                   1387:
                   1388:   # unescape
                   1389:   y/\001/&/;
                   1390:
                   1391:   return $_;
                   1392: }
                   1393:
                   1394: # Note that this doesn't htmlquote the first argument...
                   1395: sub link($$)
                   1396: {
                   1397:   my ($name, $url) = @_;
                   1398:
                   1399:   $url =~ s/:/sprintf("%%%02x", ord($&))/eg
                   1400:     if $url =~ /^[^a-z]/;    # relative
                   1401:
                   1402:   sprintf '<a href="%s">%s</a>', hrefquote($url), $name;
                   1403: }
                   1404:
                   1405: sub revcmp($$)
                   1406: {
                   1407:   my ($rev1, $rev2) = @_;
                   1408:
                   1409:   # make no comparison for a tag or a branch
                   1410:   return 0 if $rev1 =~ /[^\d.]/ || $rev2 =~ /[^\d.]/;
                   1411:
                   1412:   my (@r1) = split (/\./, $rev1);
                   1413:   my (@r2) = split (/\./, $rev2);
                   1414:   my ($a, $b);
                   1415:
                   1416:   while (($a = shift (@r1)) && ($b = shift (@r2))) {
                   1417:     if ($a != $b) {
                   1418:       return $a <=> $b;
                   1419:     }
                   1420:   }
                   1421:   if (@r1) { return  1; }
                   1422:   if (@r2) { return -1; }
                   1423:   return 0;
                   1424: }
                   1425:
                   1426: sub fatal($$@)
                   1427: {
                   1428:   my ($errcode, $format, @args) = @_;
                   1429:   if ($is_mod_perl) {
                   1430:     Apache->request->status((split (/ /, $errcode))[0]);
                   1431:   } else {
                   1432:     print "Status: $errcode\r\n";
                   1433:   }
3.131     scop     1434:   html_header('Error');
3.120     scop     1435:   print "<p>Error: ", sprintf($format, map(htmlquote($_), @args)), "</p>\n";
                   1436:   html_footer();
                   1437:   exit(1);
                   1438: }
                   1439:
                   1440: sub redirect($)
                   1441: {
                   1442:   my ($url) = @_;
                   1443:   if ($is_mod_perl) {
                   1444:     Apache->request->status(301);
                   1445:     Apache->request->header_out(Location => $url);
                   1446:   } else {
                   1447:     print "Status: 301 Moved\r\n";
                   1448:     print "Location: $url\r\n";
                   1449:   }
3.131     scop     1450:   html_header('Moved');
3.120     scop     1451:   print "<p>This document is located ", &link('here', $url), "</p>\n";
                   1452:   html_footer();
                   1453:   exit(1);
                   1454: }
                   1455:
                   1456: sub safeglob($)
                   1457: {
                   1458:   my ($filename) = @_;
                   1459:   my ($dirname);
                   1460:   my (@results);
                   1461:   my $dh = do { local (*DH); };
                   1462:
                   1463:   ($dirname = $filename) =~ s|/[^/]+$||;
                   1464:   $filename =~ s|.*/||;
                   1465:
                   1466:   if (opendir($dh, $dirname)) {
                   1467:     my $glob = $filename;
                   1468:     my $t;
                   1469:
3.149     scop     1470:     #   transform filename from glob to regex.  Deal with:
                   1471:     #   [, {, ?, * as glob chars
                   1472:     #   make sure to escape all other regex chars
3.120     scop     1473:     $glob =~ s/([\.\(\)\|\+])/\\$1/g;
                   1474:     $glob =~ s/\*/.*/g;
                   1475:     $glob =~ s/\?/./g;
                   1476:     $glob =~ s/{([^}]+)}/($t = $1) =~ s-,-|-g; "($t)"/eg;
                   1477:     foreach (readdir($dh)) {
                   1478:
                   1479:       if (/^${glob}$/) {
                   1480:         push (@results, "$dirname/" . $_);
                   1481:       }
                   1482:     }
                   1483:     closedir($dh);
                   1484:   }
                   1485:
                   1486:   @results;
                   1487: }
                   1488:
                   1489: sub search_path($)
                   1490: {
                   1491:   my ($command) = @_;
                   1492:   my $d;
                   1493:
                   1494:   for $d (split (/:/, $command_path)) {
                   1495:     return "$d/$command" if -x "$d/$command";
                   1496:   }
                   1497:
                   1498:   return '';
                   1499: }
                   1500:
                   1501: sub getMimeTypeFromSuffix($)
                   1502: {
                   1503:   my ($fullname) = @_;
                   1504:   my ($mimetype, $suffix);
                   1505:   my $fh = do { local (*FH); };
                   1506:
                   1507:   ($suffix = $fullname) =~ s/^.*\.([^.]*)$/$1/;
                   1508:   $mimetype = $MTYPES{$suffix};
                   1509:   $mimetype = $MTYPES{'*'} if (!$mimetype);
                   1510:
                   1511:   if (!$mimetype && -f $mime_types) {
                   1512:
                   1513:     # okey, this is something special - search the
                   1514:     # mime.types database
                   1515:     open($fh, "<$mime_types");
                   1516:     while (<$fh>) {
                   1517:       if ($_ =~ /^\s*(\S+\/\S+).*\b$suffix\b/) {
                   1518:         $mimetype = $1;
                   1519:         last;
                   1520:       }
                   1521:     }
                   1522:     close($fh);
                   1523:   }
                   1524:
                   1525:   # okey, didn't find anything useful ..
                   1526:   if (!($mimetype =~ /\S\/\S/)) {
                   1527:     $mimetype = "text/plain";
                   1528:   }
                   1529:   return $mimetype;
3.1       knu      1530: }
                   1531:
                   1532: ###############################
3.24      knu      1533: # read first lines like head(1)
                   1534: ###############################
3.120     scop     1535: sub head($;$)
                   1536: {
                   1537:   my $fh        = $_[0];
                   1538:   my $linecount = $_[1] || 10;
3.24      knu      1539:
3.120     scop     1540:   my @buf;
                   1541:
                   1542:   if ($linecount > 0) {
                   1543:     my $i;
                   1544:     for ($i = 0; !eof($fh) && $i < $linecount; $i++) {
                   1545:       push @buf, scalar <$fh>;
                   1546:     }
                   1547:   } else {
                   1548:     @buf = <$fh>;
                   1549:   }
                   1550:
                   1551:   @buf;
3.24      knu      1552: }
                   1553:
                   1554: ###############################
                   1555: # scan vim and Emacs directives
                   1556: ###############################
3.120     scop     1557: sub scan_directives(@)
                   1558: {
                   1559:   my $ts = undef;
3.24      knu      1560:
3.120     scop     1561:   for (@_) {
                   1562:     $ts = $1 if /\b(?:ts|tabstop|tab-width)[:=]\s*([1-9]\d*)\b/;
                   1563:   }
3.24      knu      1564:
3.120     scop     1565:   ('tabstop' => $ts);
3.24      knu      1566: }
                   1567:
3.120     scop     1568: sub openOutputFilter()
                   1569: {
                   1570:   return if !defined($output_filter) || $output_filter eq '';
3.86      knu      1571:
3.120     scop     1572:   open(STDOUT, "|-") and return;
3.86      knu      1573:
3.120     scop     1574:   # child of child
                   1575:   open(STDERR, '>/dev/null');
                   1576:   exec($output_filter) or exit -1;
3.86      knu      1577: }
                   1578:
3.24      knu      1579: ###############################
3.1       knu      1580: # show Annotation
                   1581: ###############################
3.133     scop     1582: sub doAnnotate($)
3.120     scop     1583: {
                   1584:   my ($rev) = @_;
                   1585:   my ($pid);
                   1586:   my ($pathname, $filename);
                   1587:   my $reader = do { local (*FH); };
                   1588:   my $writer = do { local (*FH); };
                   1589:
                   1590:   # make sure the revisions are wellformed, for security
                   1591:   # reasons ..
                   1592:   if ($rev =~ /[^\w.]/) {
                   1593:     fatal("404 Not Found", 'Malformed query "%s"', $ENV{QUERY_STRING});
                   1594:   }
                   1595:
                   1596:   ($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
                   1597:   ($filename = $where) =~ s/^.*\///;
                   1598:
                   1599:   # this seems to be necessary
                   1600:   $| = 1;
                   1601:   $| = 0;    # Flush
                   1602:
3.126     scop     1603:   # Work around a mod_perl bug (?) in order to make open2() work.
                   1604:   # Search for "untie STDIN" in mod_perl mailing list archives for more info.
                   1605:   my $old_stdin;
                   1606:   if ($is_mod_perl && ($old_stdin = tied *STDIN)) {
                   1607:     local $^W = undef;
                   1608:     untie *STDIN;
                   1609:   }
                   1610:
3.120     scop     1611:   # this annotate version is based on the
                   1612:   # cvs annotate-demo Perl script by Cyclic Software
                   1613:   # It was written by Cyclic Software, http://www.cyclic.com/, and is in
                   1614:   # the public domain.
                   1615:   # we could abandon the use of rlog, rcsdiff and co using
                   1616:   # the cvsserver in a similiar way one day (..after rewrite)
3.128     scop     1617:   $pid = open2($reader, $writer, $CMD{cvs}, @annotate_options, 'server')
3.120     scop     1618:     or fatal("500 Internal Error",
                   1619:              'Fatal Error - unable to open cvs for annotation');
3.126     scop     1620:
                   1621:   # Re-tie STDIN if we fiddled around with it earlier, just to be sure.
                   1622:   tie(*STDIN, ref($old_stdin), $old_stdin) if ($old_stdin && !tied(*STDIN));
3.120     scop     1623:
                   1624:   # OK, first send the request to the server.  A simplified example is:
                   1625:   #     Root /home/kingdon/zwork/cvsroot
                   1626:   #     Argument foo/xx
                   1627:   #     Directory foo
                   1628:   #     /home/kingdon/zwork/cvsroot/foo
                   1629:   #     Directory .
                   1630:   #     /home/kingdon/zwork/cvsroot
                   1631:   #     annotate
                   1632:   # although as you can see there are a few more details.
                   1633:
                   1634:   print $writer "Root $cvsroot\n";
                   1635:   print $writer
                   1636:     "Valid-responses ok error Valid-requests Checked-in Updated Merged Removed M E\n";
                   1637:
                   1638:   # Don't worry about sending valid-requests, the server just needs to
                   1639:   # support "annotate" and if it doesn't, there isn't anything to be done.
                   1640:   print $writer "UseUnchanged\n";
                   1641:   print $writer "Argument -r\n";
                   1642:   print $writer "Argument $rev\n";
                   1643:   print $writer "Argument $where\n";
                   1644:
                   1645:   # The protocol requires us to fully fake a working directory (at
                   1646:   # least to the point of including the directories down to the one
                   1647:   # containing the file in question).
3.123     scop     1648:   # So if $where is "dir/sdir/file", then dirs will be ("dir","sdir","file")
                   1649:   my $path = '';
                   1650:   foreach my $dir (split('/', $where)) {
3.120     scop     1651:
                   1652:     if ($path eq "") {
3.123     scop     1653:       # In our example, $dir is "dir".
                   1654:       $path = $dir;
3.120     scop     1655:     } else {
                   1656:       print $writer "Directory $path\n";
                   1657:       print $writer "$cvsroot/$path\n";
                   1658:
                   1659:       # In our example, $_ is "sdir" and $path becomes "dir/sdir"
                   1660:       # And the next time, "file" and "dir/sdir/file" (which then gets
                   1661:       # ignored, because we don't need to send Directory for the file).
3.123     scop     1662:       $path .= "/$dir";
3.120     scop     1663:     }
                   1664:   }
3.123     scop     1665:   undef $path;
3.120     scop     1666:
                   1667:   # And the last "Directory" before "annotate" is the top level.
                   1668:   print $writer "Directory .\n";
                   1669:   print $writer "$cvsroot\n";
                   1670:
                   1671:   print $writer "annotate\n";
                   1672:
                   1673:   # OK, we've sent our command to the server.  Thing to do is to
                   1674:   # close the writer side and get all the responses.  If "cvs server"
                   1675:   # were nicer about buffering, then we could just leave it open, I think.
                   1676:   close($writer) or die "cannot close: $!";
                   1677:
3.133     scop     1678:   navigateHeader($scriptwhere, $pathname, $filename, $rev, 'annotate');
3.120     scop     1679:
3.136     scop     1680:   print '<h3 style="text-align: center">Annotation of ',
                   1681:     htmlquote("$pathname$filename"), ", revision $rev</h3>\n";
3.120     scop     1682:
                   1683:   # Ready to get the responses from the server.
                   1684:   # For example:
                   1685:   #     E Annotations for foo/xx
                   1686:   #     E ***************
                   1687:   #     M 1.3          (kingdon  06-Sep-97): hello
                   1688:   #     ok
                   1689:   my ($lineNr) = 0;
                   1690:   my ($oldLrev, $oldLusr) = ("", "");
                   1691:   my ($revprint, $usrprint);
                   1692:
                   1693:   if ($annTable) {
                   1694:     print
                   1695:       "<table style=\"border: none\" cellspacing=\"0\" cellpadding=\"0\">\n";
                   1696:   } else {
                   1697:     print "<pre>";
                   1698:   }
                   1699:
                   1700:   # prefetch several lines
                   1701:   my @buf = head($reader);
                   1702:
                   1703:   my %d = scan_directives(@buf);
                   1704:
                   1705:   while (@buf || !eof($reader)) {
                   1706:     $_ = @buf ? shift @buf : <$reader>;
                   1707:
                   1708:     my @words = split;
                   1709:
                   1710:     # Adding one is for the (single) space which follows $words[0].
                   1711:     my $rest = substr($_, length($words[0]) + 1);
                   1712:     if ($words[0] eq "E") {
                   1713:       next;
                   1714:     } elsif ($words[0] eq "M") {
                   1715:       $lineNr++;
                   1716:       (my $lrev = substr($_, 2,  13)) =~ y/ //d;
                   1717:       (my $lusr = substr($_, 16, 9))  =~ y/ //d;
                   1718:       my $line = substr($_, 36);
                   1719:       my $isCurrentRev = ($rev eq $lrev);
                   1720:
                   1721:       # we should parse the date here ..
                   1722:       if ($lrev eq $oldLrev) {
                   1723:         $revprint = sprintf('%-8s', '');
                   1724:       } else {
                   1725:         $revprint = sprintf('%-8s', $lrev);
                   1726:         $revprint =~ s`\S+`&link($&, "$scriptwhere$query#rev$&")`e;    # `
                   1727:         $oldLusr = '';
                   1728:       }
                   1729:
                   1730:       if ($lusr eq $oldLusr) {
                   1731:         $usrprint = '';
                   1732:       } else {
                   1733:         $usrprint = $lusr;
                   1734:       }
                   1735:       $oldLrev = $lrev;
                   1736:       $oldLusr = $lusr;
                   1737:
                   1738:       # Set bold for text-based browsers only - graphical
                   1739:       # browsers show bold fonts a bit wider than regular fonts,
                   1740:       # so it looks irregular.
                   1741:       print "<b>" if ($isCurrentRev && $is_textbased);
                   1742:
3.136     scop     1743:       $usrprint = sprintf('%-8s', $usrprint);
                   1744:       printf '%s%s %s %4d:', $revprint, $isCurrentRev ? '!' : ' ',
                   1745:         htmlquote($usrprint), $lineNr;
3.120     scop     1746:       print spacedHtmlText($line, $d{'tabstop'});
                   1747:
                   1748:       print "</b>" if ($isCurrentRev && $is_textbased);
                   1749:     } elsif ($words[0] eq "ok") {
                   1750:
                   1751:       # We could complain about any text received after this, like the
                   1752:       # CVS command line client.  But for simplicity, we don't.
                   1753:     } elsif ($words[0] eq "error") {
                   1754:       fatal("500 Internal Error",
                   1755:             'Error occured during annotate: <b>%s</b>', $_);
                   1756:     }
                   1757:   }
                   1758:
                   1759:   if ($annTable) {
                   1760:     print "</table>";
                   1761:   } else {
                   1762:     print "</pre>";
                   1763:   }
3.124     scop     1764:   html_footer();
                   1765:
3.120     scop     1766:   close($reader) or warn "cannot close: $!";
                   1767:   wait;
3.1       knu      1768: }
                   1769:
                   1770: ###############################
                   1771: # make Checkout
                   1772: ###############################
3.120     scop     1773: sub doCheckout($$)
                   1774: {
                   1775:   my ($fullname, $rev) = @_;
                   1776:   my ($mimetype, $revopt);
                   1777:   my $fh = do { local (*FH); };
                   1778:
                   1779:   if ($rev eq 'HEAD' || $rev eq '.') {
                   1780:     $rev = undef;
                   1781:   }
                   1782:
                   1783:   # make sure the revisions a wellformed, for security
                   1784:   # reasons ..
                   1785:   if (defined($rev) && $rev =~ /[^\w.]/) {
                   1786:     fatal("404 Not Found", 'Malformed query "%s"', $ENV{QUERY_STRING});
                   1787:   }
                   1788:
                   1789:   # get mimetype
                   1790:   if (defined($input{"content-type"})
                   1791:     && ($input{"content-type"} =~ /\S\/\S/))
                   1792:   {
                   1793:     $mimetype = $input{"content-type"};
                   1794:   } else {
                   1795:     $mimetype = &getMimeTypeFromSuffix($fullname);
                   1796:   }
                   1797:
                   1798:   if (defined($rev)) {
                   1799:     $revopt = "-r$rev";
                   1800:     if ($use_moddate) {
                   1801:       readLog($fullname, $rev);
                   1802:       $moddate = $date{$rev};
                   1803:     }
                   1804:   } else {
                   1805:     $revopt = "-rHEAD";
                   1806:
                   1807:     if ($use_moddate) {
                   1808:       readLog($fullname);
                   1809:       $moddate = $date{$symrev{HEAD}};
                   1810:     }
                   1811:   }
                   1812:
                   1813:   ### just for the record:
                   1814:   ### 'cvs co' seems to have a bug regarding single checkout of
                   1815:   ### directories/files having spaces in it;
                   1816:   ### this is an issue that should be resolved on cvs's side
                   1817:   #
                   1818:   # Safely for a child process to read from.
                   1819:   if (!open($fh, "-|")) {    # child
                   1820:     # chdir to $tmpdir before to avoid non-readable cgi-bin directories
                   1821:     chdir($tmpdir);
                   1822:     open(STDERR, ">&STDOUT");    # Redirect stderr to stdout
                   1823:
                   1824:     # work around a bug of cvs -p; expand symlinks
                   1825:     exec($CMD{cvs}, @cvs_options, '-d', abs_path($cvsroot), 'co', '-p',
                   1826:          $revopt, $where)
                   1827:       or exit -1;
                   1828:   }
                   1829:
                   1830:   if (eof($fh)) {
                   1831:     fatal("404 Not Found", '%s is not (any longer) pertinent', $where);
                   1832:   }
                   1833:
                   1834:   #===================================================================
                   1835:   #Checking out squid/src/ftp.c
                   1836:   #RCS:  /usr/src/CVS/squid/src/ftp.c,v
                   1837:   #VERS: 1.1.1.28.6.2
                   1838:   #***************
                   1839:
                   1840:   # Parse CVS header
                   1841:   my ($revision, $filename, $cvsheader);
                   1842:   $filename = "";
                   1843:   while (<$fh>) {
                   1844:     last if (/^\*\*\*\*/);
                   1845:     $revision = $1 if (/^VERS: (.*)$/);
                   1846:
                   1847:     if (/^Checking out (.*)$/) {
                   1848:       $filename = $1;
                   1849:       $filename =~ s/^\.\/*//;
                   1850:     }
                   1851:     $cvsheader .= $_;
                   1852:   }
                   1853:
                   1854:   if ($filename ne $where) {
                   1855:     fatal("500 Internal Error",
                   1856:           'Unexpected output from cvs co: %s', $cvsheader);
                   1857:   }
                   1858:   $| = 1;
                   1859:
3.146     scop     1860:   if ($mimetype =~ $CvsWebMarkupRE) {
3.120     scop     1861:     &cvswebMarkup($fh, $fullname, $revision);
                   1862:   } else {
                   1863:     http_header($mimetype);
                   1864:     print <$fh>;
                   1865:   }
                   1866:   close($fh);
1.12      fenner   1867: }
                   1868:
3.120     scop     1869: sub cvswebMarkup($$$)
                   1870: {
                   1871:   my ($filehandle, $fullname, $revision) = @_;
                   1872:   my ($pathname,   $filename);
3.1       knu      1873:
3.120     scop     1874:   ($pathname = $where) =~ s/(Attic\/)?[^\/]*$//;
                   1875:   ($filename = $where) =~ s/^.*\///;
                   1876:   my ($fileurl) = urlencode($filename);
                   1877:
3.133     scop     1878:   navigateHeader($scriptwhere, $pathname, $filename, $revision, 'view');
3.120     scop     1879:
3.144     scop     1880:   print <<EOF;
                   1881: <hr noshade>
                   1882: <table width="100%">
                   1883: <tr>
                   1884: <td class="log-markup">File:&nbsp;
                   1885: EOF
                   1886:   print &clickablePath($where, 1), '&nbsp;(';
                   1887:   &download_link($fileurl, $revision, 'download');
                   1888:   print ')';
                   1889:   print ' - ', &graph_link('', $revision, 'graph') if $allow_cvsgraph;
3.120     scop     1890:
                   1891:   if (!$defaultTextPlain) {
                   1892:     print "&nbsp;(";
                   1893:     &download_link($fileurl, $revision, "as text", "text/plain");
                   1894:     print ")";
                   1895:   }
                   1896:   print "<br>\n";
                   1897:
                   1898:   if ($show_log_in_markup) {
                   1899:     readLog($fullname);    #,$revision);
                   1900:     printLog($revision, 0);
                   1901:   } else {
                   1902:     print "Version: <b>$revision</b><br>\n";
                   1903:     print "Tag: <b>", $input{only_with_tag}, "</b><br>\n"
                   1904:       if $input{only_with_tag};
                   1905:   }
                   1906:   print "</td>\n</tr>\n</table>";
                   1907:   my $url = download_url($fileurl, $revision, $mimetype);
                   1908:   print "<hr noshade>";
                   1909:
                   1910:   if ($mimetype =~ /^image/) {
                   1911:     printf '<img src="%s" alt=""><br>', hrefquote("$url$barequery");
                   1912:   } elsif ($mimetype =~ m%^application/pdf%) {
3.147     scop     1913:     printf '<embed src="%s" width="100%%"><br>', hrefquote("$url$barequery");
3.120     scop     1914:   } elsif ($preformat_in_markup) {
                   1915:     print "<pre>";
                   1916:
                   1917:     # prefetch several lines
                   1918:     my @buf = head($filehandle);
                   1919:
                   1920:     my %d = scan_directives(@buf);
                   1921:
                   1922:     while (@buf || !eof($filehandle)) {
                   1923:       $_ = @buf ? shift @buf : <$filehandle>;
                   1924:
                   1925:       print spacedHtmlText($_, $d{'tabstop'});
                   1926:     }
                   1927:     print "</pre>";
                   1928:   } else {
                   1929:
3.148     scop     1930:     my $enscript_hl = undef;
                   1931:
                   1932:     if ($allow_enscript) {
                   1933:       while (my ($hl, $regex) = each %enscript_types) {
3.149     scop     1934:         if ($filename =~ $regex) {
                   1935:           $enscript_hl = $hl;
                   1936:           last;
                   1937:         }
3.148     scop     1938:       }
                   1939:     }
                   1940:
3.149     scop     1941:     print '<pre>';
                   1942:     my $lineNumber = 0;
                   1943:     my $doLineNumbers = $input{ln} || 0;
                   1944:
3.148     scop     1945:     if ($enscript_hl) {
                   1946:
                   1947:       my $reader = do { local (*FH); };
                   1948:       my $writer = do { local (*FH); };
                   1949:
                   1950:       open2($reader, $writer, $CMD{enscript}, @enscript_options,
3.149     scop     1951:             qw(-q --language=cvsweb -o -),
                   1952:             "--highlight=$enscript_hl",
                   1953:             '-')
                   1954:         or fatal('500 Internal Error',
                   1955:                  'Fatal Error - unable to open Enscript for colorization');
3.148     scop     1956:
                   1957:       while (<$filehandle>) {
3.149     scop     1958:         print $writer $_;
3.148     scop     1959:       }
                   1960:       close($writer);
                   1961:       while (<$reader>) {
3.149     scop     1962:         if ($doLineNumbers) {
                   1963:           $lineNumber++;
                   1964:           printf '<a id="l%d" class="src">%5d: </a>', ($lineNumber) x 2;
                   1965:         }
3.148     scop     1966:         print $_;
                   1967:       }
                   1968:       close($reader);
                   1969:
                   1970:     } else {
                   1971:       while (<$filehandle>) {
3.149     scop     1972:         if ($doLineNumbers) {
                   1973:           $lineNumber++;
                   1974:           printf '<a id="l%d" class="src">%5d: </a>', ($lineNumber) x 2;
                   1975:         }
                   1976:         print htmlquote($_);
3.148     scop     1977:       }
3.120     scop     1978:     }
3.149     scop     1979:
                   1980:     print "</pre>\n";
3.120     scop     1981:   }
3.131     scop     1982:   html_footer();
3.120     scop     1983: }
                   1984:
                   1985: sub viewable($)
                   1986: {
                   1987:   my ($mimetype) = @_;
                   1988:
                   1989:   $mimetype =~ m%^((text|image)/|application/pdf)%;
3.1       knu      1990: }
                   1991:
                   1992: ###############################
                   1993: # Show Colored Diff
                   1994: ###############################
3.120     scop     1995: sub doDiff($$$$$$)
                   1996: {
                   1997:   my ($fullname, $r1, $tr1, $r2, $tr2, $f) = @_;
                   1998:   my $fh = do { local (*FH); };
                   1999:   my ($rev1, $rev2, $sym1, $sym2, $f1, $f2);
                   2000:
                   2001:   if (&forbidden_file($fullname)) {
                   2002:     fatal("403 Forbidden",
                   2003:           'Access forbidden.  This file is mentioned in @ForbiddenFiles');
                   2004:   }
                   2005:
                   2006:   if ($r1 =~ /([^:]+)(:(.+))?/) {
                   2007:     $rev1 = $1;
                   2008:     $sym1 = $3;
                   2009:   }
                   2010:   if ($r1 eq 'text') {
                   2011:     $rev1 = $tr1;
                   2012:     $sym1 = "";
                   2013:   }
                   2014:
                   2015:   if ($r2 =~ /([^:]+)(:(.+))?/) {
                   2016:     $rev2 = $1;
                   2017:     $sym2 = $3;
                   2018:   }
                   2019:   if ($r2 eq 'text') {
                   2020:     $rev2 = $tr2;
                   2021:     $sym2 = "";
                   2022:   }
                   2023:
                   2024:   # make sure the revisions a wellformed, for security
                   2025:   # reasons ..
                   2026:   if ($rev1 =~ /[^\w.]/ || $rev2 =~ /[^\w.]/) {
                   2027:     fatal("404 Not Found", 'Malformed query "%s"', $ENV{QUERY_STRING});
                   2028:   }
                   2029:
                   2030:   #
                   2031:   # rev1 and rev2 are now both numeric revisions.
                   2032:   # Thus we do a DWIM here and swap them if rev1 is after rev2.
                   2033:   # XXX should we warn about the fact that we do this?
                   2034:   if (&revcmp($rev1, $rev2) > 0) {
                   2035:     my ($tmp1, $tmp2) = ($rev1, $sym1);
                   2036:     ($rev1, $sym1) = ($rev2, $sym2);
                   2037:     ($rev2, $sym2) = ($tmp1, $tmp2);
                   2038:   }
                   2039:   my $difftype = $DIFFTYPES{$f};
                   2040:
                   2041:   if (!$difftype) {
                   2042:     fatal("400 Bad arguments", 'Diff format %s not understood', $f);
                   2043:   }
                   2044:
                   2045:   my @difftype       = @{$difftype->{'opts'}};
                   2046:   my $human_readable = $difftype->{'colored'};
                   2047:
                   2048:   # apply special options
                   2049:   if ($showfunc) {
                   2050:     push @difftype, '-p' if $f ne 's';
                   2051:
                   2052:     my ($re1, $re2);
                   2053:
                   2054:     while (($re1, $re2) = each %funcline_regexp) {
                   2055:       if ($fullname =~ /$re1/) {
                   2056:         push @difftype, '-F', $re2;
                   2057:         last;
                   2058:       }
                   2059:     }
                   2060:   }
                   2061:
                   2062:   if ($human_readable) {
                   2063:     if ($hr_ignwhite) {
                   2064:       push @difftype, '-w';
                   2065:     }
                   2066:     if ($hr_ignkeysubst) {
                   2067:       push @difftype, '-kk';
                   2068:     }
                   2069:   }
                   2070:
                   2071:   if (!open($fh, "-|")) {    # child
                   2072:     open(STDERR, ">&STDOUT");    # Redirect stderr to stdout
                   2073:     openOutputFilter();
                   2074:     exec($CMD{rcsdiff}, @difftype, "-r$rev1", "-r$rev2", $fullname) or exit -1;
                   2075:   }
                   2076:   if ($human_readable) {
                   2077:     &human_readable_diff($fh, $rev2);
                   2078:     html_footer();
                   2079:     gzipclose();
                   2080:     exit;
                   2081:   } else {
                   2082:     http_header("text/plain");
                   2083:   }
                   2084:
                   2085:   #
                   2086:   #===================================================================
                   2087:   #RCS file: /home/ncvs/src/sys/netinet/tcp_output.c,v
                   2088:   #retrieving revision 1.16
                   2089:   #retrieving revision 1.17
                   2090:   #diff -c -r1.16 -r1.17
                   2091:   #*** /home/ncvs/src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   2092:   #--- /home/ncvs/src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17
                   2093:   #
                   2094:   # Ideas:
                   2095:   # - nuke the stderr output if it's what we expect it to be
                   2096:   # - Add "no differences found" if the diff command supplied no output.
                   2097:   #
                   2098:   #*** src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
                   2099:   #--- src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17 RELENG_2_1_0
                   2100:   # (bogus example, but...)
                   2101:   #
                   2102:   if (grep { $_ eq '-u' } @difftype) {
                   2103:     $f1 = '---';
                   2104:     $f2 = '\+\+\+';
                   2105:   } else {
                   2106:     $f1 = '\*\*\*';
                   2107:     $f2 = '---';
                   2108:   }
                   2109:
                   2110:   while (<$fh>) {
                   2111:     if (m|^$f1 $cvsroot|o) {
                   2112:       s|$cvsroot/||o;
                   2113:       if ($sym1) {
                   2114:         chop;
                   2115:         $_ .= " $sym1\n";
                   2116:       }
                   2117:     } elsif (m|^$f2 $cvsroot|o) {
                   2118:       s|$cvsroot/||o;
                   2119:
                   2120:       if ($sym2) {
                   2121:         chop;
                   2122:         $_ .= " $sym2\n";
                   2123:       }
                   2124:     }
                   2125:     print $_;
                   2126:   }
                   2127:   close($fh);
1.12      fenner   2128: }
                   2129:
3.1       knu      2130: ###############################
                   2131: # Show Logs ..
                   2132: ###############################
3.120     scop     2133: sub getDirLogs($$@)
                   2134: {
                   2135:   my ($cvsroot, $dirname, @otherFiles) = @_;
3.139     scop     2136:   my $tag = $input{only_with_tag};
                   2137:   my $DirName = "$cvsroot/$where";
3.120     scop     2138:
3.139     scop     2139:   my @files = &safeglob("$DirName/*,v");
                   2140:   push (@files, &safeglob("$DirName/Attic/*,v")) if (!$input{'hideattic'});
3.120     scop     2141:   foreach my $file (@otherFiles) {
                   2142:     push (@files, "$DirName/$file");
                   2143:   }
                   2144:
3.150     scop     2145:   # Weed out unreadable files.
                   2146:   my $i = 0;
                   2147:   my @unreadable = ();
                   2148:   while ($i < scalar(@files)) {
                   2149:     if (-r $files[$i]) {
                   2150:       $i++;
                   2151:     } else {
                   2152:       push(@unreadable, splice(@files, $i, 1));
                   2153:     }
                   2154:   }
                   2155:
3.139     scop     2156:   # If there are no files, we're done.
3.150     scop     2157:   return @unreadable unless @files;
3.120     scop     2158:
3.139     scop     2159:   my @cmd = ($CMD{rlog});
                   2160:   # Can't use -r<tag> as '-' is allowed in tagnames,
                   2161:   # but misinterpreted by rlog.
                   2162:   push(@cmd, '-r') unless defined($tag);
3.120     scop     2163:
3.139     scop     2164:   my $fh = do { local (*FH); };
                   2165:   if (!open($fh, '-|')) {            # Child
                   2166:     open(STDERR, '>/dev/null');      # Ignore rlog's complaints.
                   2167:     openOutputFilter();
                   2168:     if ($file_list_len && $file_list_len > 1) {
                   2169:       while (scalar(@files) > $file_list_len) {  # Process files in chunks.
                   2170:         system(@cmd, splice(@files, 0, $file_list_len)) == 0 or exit -1;
                   2171:       }
3.120     scop     2172:     }
3.139     scop     2173:     exec(@cmd, @files) or exit -1;
                   2174:   }
                   2175:   undef @cmd;
3.120     scop     2176:
3.139     scop     2177:   my $state = 'start';
                   2178:   my ($date, $branchpoint, $branch, $log, @filetags);
                   2179:   my ($rev, $revision, $revwanted, $filename, $head, $author);
3.120     scop     2180:
                   2181:   while (<$fh>) {
                   2182:     if ($state eq "start") {
                   2183:
                   2184:       #Next file. Initialize file variables
                   2185:       $rev         = '';
                   2186:       $revwanted   = '';
                   2187:       $branch      = '';
                   2188:       $branchpoint = '';
                   2189:       $filename    = '';
                   2190:       $log         = '';
                   2191:       $revision    = '';
                   2192:       %symrev      = ();
                   2193:       @filetags    = ();
                   2194:
                   2195:       #jump to head state
                   2196:       $state = "head";
                   2197:     }
3.144     scop     2198:
3.120     scop     2199:     again:
                   2200:
                   2201:     if ($state eq "head") {
                   2202:
                   2203:       #$rcsfile = $1 if (/^RCS file: (.+)$/); #not used (yet)
                   2204:
                   2205:       if (/^Working file: (.+)$/) {
                   2206:         $filename = $1;
                   2207:       } elsif (/^head: (.+)$/) {
                   2208:         $head = $1;
                   2209:       } elsif (/^branch: (.+)$/) {
                   2210:         $branch = $1;
                   2211:       } elsif (/^symbolic names:/) {
                   2212:         $state = "tags";
                   2213:         ($branch = $head) =~ s/\.\d+$//
                   2214:           if $branch eq '';
                   2215:         $branch =~ s/(\d+)$/0.$1/;
                   2216:         $symrev{MAIN}  = $branch;
                   2217:         $symrev{HEAD}  = $branch;
                   2218:         $alltags{MAIN} = 1;
                   2219:         $alltags{HEAD} = 1;
                   2220:         push (@filetags, "MAIN", "HEAD");
                   2221:       } elsif (/$LOG_REVSEPARATOR/o) {
                   2222:         $state = "log";
                   2223:         $rev   = '';
                   2224:         $date  = '';
                   2225:         $log   = '';
                   2226:
                   2227:         # Try to reconstruct the relative filename if RCS spits out a full path
                   2228:         $filename =~ s%^\Q$DirName\E/%%;
                   2229:       }
                   2230:       next;
                   2231:     }
                   2232:
                   2233:     if ($state eq "tags") {
                   2234:       if (/^\s+([^:]+):\s+([\d\.]+)\s*$/) {
                   2235:         push (@filetags, $1);
                   2236:         $symrev{$1}  = $2;
                   2237:         $alltags{$1} = 1;
                   2238:         next;
                   2239:       } elsif (/^\S/) {
                   2240:
                   2241:         if (defined($tag)) {
                   2242:           if (defined($symrev{$tag}) || $tag eq "HEAD") {
                   2243:             $revwanted    = $symrev{$tag eq "HEAD" ? "MAIN" : $tag};
                   2244:             ($branch      = $revwanted) =~ s/\b0\.//;
                   2245:             ($branchpoint = $branch)    =~ s/\.?\d+$//;
                   2246:             $revwanted    = '' if ($revwanted ne $branch);
                   2247:           } elsif ($tag ne "HEAD") {
                   2248:             $state = "skip";
                   2249:             next;
                   2250:           }
                   2251:         }
                   2252:
                   2253:         foreach my $tagfound (@filetags) {
                   2254:           $tags{$tagfound} = 1;
                   2255:         }
                   2256:         $state = "head";
                   2257:         goto again;
                   2258:       }
                   2259:     }
                   2260:
                   2261:     if ($state eq "log") {
                   2262:       if (/$LOG_REVSEPARATOR/o || /$LOG_FILESEPARATOR/o) {
                   2263:
                   2264:         # End of a log entry.
                   2265:         my $revbranch = $rev;
                   2266:         $revbranch =~ s/\.\d+$//;
                   2267:
                   2268:         if ($revwanted eq '' && $branch ne '' && $branch eq $revbranch
                   2269:             || !defined($tag))
                   2270:         {
                   2271:           $revwanted = $rev;
                   2272:         }
                   2273:
                   2274:         if ($revwanted ne ''
                   2275:             ? $rev eq $revwanted
                   2276:             : $branchpoint ne ''
                   2277:               ? $rev eq $branchpoint
                   2278:               : 0
                   2279:             && ($rev eq $head))
                   2280:         {    # Don't think head is needed here..
                   2281:           my @finfo = ($rev, $date, $log, $author, $filename);
                   2282:           my ($name);
                   2283:           ($name = $filename) =~ s%/.*%%;
                   2284:           $fileinfo{$name} = [@finfo];
                   2285:           $state = "done" if ($rev eq $revwanted);
                   2286:         }
                   2287:         $rev  = '';
                   2288:         $date = '';
                   2289:         $log  = '';
                   2290:       } elsif ($date eq ''
                   2291:                && m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);|)
                   2292:       {
                   2293:         my $yr = $1;
                   2294:
                   2295:         # damn 2-digit year routines :-)
                   2296:         if ($yr > 100) {
                   2297:           $yr -= 1900;
                   2298:         }
                   2299:         $date = &Time::Local::timegm($6, $5, $4, $3, $2 - 1, $yr);
                   2300:         ($author) = /author: ([^;]+)/;
                   2301:         $state = "log";
                   2302:         $log   = '';
                   2303:         next;
                   2304:       } elsif ($rev eq '' && /^revision (\d+(?:\.\d+)+).*$/) {
                   2305:         $rev = $1;    # .*$ eats up the locker(lockers?) info, if any
                   2306:         next;
                   2307:       } else {
                   2308:         $log .= $_;
                   2309:       }
                   2310:     }
                   2311:
                   2312:     if (/$LOG_FILESEPARATOR/o) {
                   2313:       $state = "start";
                   2314:       next;
                   2315:     }
                   2316:   }
                   2317:
3.139     scop     2318:   my $linesread = $. || 0;
                   2319:   close($fh);
                   2320:
                   2321:   if ($linesread == 0) {
3.137     scop     2322:     fatal('500 Internal Error',
                   2323:           'Failed to spawn GNU rlog on <em>"%s"</em>.<br><br>Did you set the <b><code>$command_path</code></b> in your configuration file correctly? (Currently: "<code>%s</code>")',
3.150     scop     2324:           htmlquote(join(', ', @files)), $command_path);
3.120     scop     2325:   }
3.150     scop     2326:
                   2327:   return @unreadable;
3.120     scop     2328: }
                   2329:
                   2330: sub readLog($;$)
                   2331: {
                   2332:   my ($fullname, $revision) = @_;
                   2333:   my ($symnames, $head, $rev, $br, $brp, $branch, $branchrev);
                   2334:   my $fh = do { local (*FH); };
                   2335:
3.144     scop     2336:   $revision = defined($revision) ? "-r$revision" : '';
3.120     scop     2337:
                   2338:   undef %symrev;
                   2339:   undef %revsym;
                   2340:   undef @allrevisions;
                   2341:   undef %date;
                   2342:   undef %author;
                   2343:   undef %state;
                   2344:   undef %difflines;
                   2345:   undef %log;
                   2346:
                   2347:   if (!open($fh, "-|")) {    # child
                   2348:     if ($revision ne '') {
                   2349:       openOutputFilter();
                   2350:       exec($CMD{rlog}, $revision, $fullname) or exit -1;
                   2351:     } else {
                   2352:       openOutputFilter();
                   2353:       exec($CMD{rlog}, $fullname) or exit -1;
                   2354:     }
                   2355:   }
                   2356:
                   2357:   while (<$fh>) {
                   2358:     if ($symnames) {
                   2359:       if (/^\s+([^:]+):\s+([\d\.]+)/) {
                   2360:         $symrev{$1} = $2;
                   2361:       } else {
                   2362:         $symnames = 0;
                   2363:       }
                   2364:     } elsif (/^head:\s+([\d\.]+)/) {
                   2365:       $head = $1;
                   2366:     } elsif (/^branch:\s+([\d\.]+)/) {
                   2367:       $curbranch = $1;
                   2368:     } elsif (/^symbolic names/) {
                   2369:       $symnames = 1;
                   2370:     } elsif (/^-----/) {
                   2371:       last;
                   2372:     }
                   2373:   }
                   2374:   ($curbranch = $head) =~ s/\.\d+$// if (!defined($curbranch));
                   2375:
                   2376:   # each log entry is of the form:
                   2377:   # ----------------------------
                   2378:   # revision 3.7.1.1
                   2379:   # date: 1995/11/29 22:15:52;  author: fenner;  state: Exp;  lines: +5 -3
                   2380:   # log info
                   2381:   # ----------------------------
                   2382:
                   2383:   # For a locked revision, the first line after the separator
                   2384:   # becomes smth like
3.149     scop     2385:   # revision 9.19       locked by: vassilii;
3.120     scop     2386:
                   2387:   logentry:
                   2388:
                   2389:   while (!/$LOG_FILESEPARATOR/o) {
                   2390:     $_ = <$fh>;
                   2391:     last logentry if (!defined($_));    # EOF
                   2392:     if (/^revision (\d+(?:\.\d+)+)/) {
                   2393:       $rev = $1;
                   2394:       unshift (@allrevisions, $rev);
                   2395:     } elsif (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o) {
                   2396:       next logentry;
                   2397:     } else {
                   2398:
                   2399:       # The rlog output is syntactically ambiguous.  We must
                   2400:       # have guessed wrong about where the end of the last log
                   2401:       # message was.
                   2402:       # Since this is likely to happen when people put rlog output
                   2403:       # in their commit messages, don't even bother keeping
                   2404:       # these lines since we don't know what revision they go with
                   2405:       # any more.
                   2406:       next logentry;
                   2407:     }
                   2408:     $_ = <$fh>;
                   2409:     if (
                   2410:       m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);\s+author:\s+(\S+);\s+state:\s+(\S+);\s+(lines:\s+([0-9\s+-]+))?|
                   2411:       )
                   2412:     {
                   2413:       my $yr = $1;
                   2414:
                   2415:       # damn 2-digit year routines :-)
                   2416:       if ($yr > 100) {
                   2417:         $yr -= 1900;
                   2418:       }
                   2419:       $date{$rev} = &Time::Local::timegm($6, $5, $4, $3, $2 - 1, $yr);
                   2420:       $author{$rev}    = $7;
                   2421:       $state{$rev}     = $8;
                   2422:       $difflines{$rev} = $10;
                   2423:     } else {
                   2424:       fatal("500 Internal Error", 'Error parsing RCS output: %s', $_);
                   2425:     }
                   2426:
                   2427:   line:
                   2428:     while (<$fh>) {
                   2429:       next line if (/^branches:\s/);
                   2430:       last line if (/$LOG_FILESEPARATOR/o || /$LOG_REVSEPARATOR/o);
                   2431:       $log{$rev} .= $_;
                   2432:     }
                   2433:   }
                   2434:   close($fh);
                   2435:
                   2436:   @revorder = reverse sort { revcmp($a, $b) } @allrevisions;
                   2437:
                   2438:   #
                   2439:   # HEAD is an artificial tag which is simply the highest tag number on the main
                   2440:   # branch, unless there is a branch tag in the RCS file in which case it's the
                   2441:   # highest revision on that branch.  Find it by looking through @revorder; it
                   2442:   # is the first commit listed on the appropriate branch.
                   2443:   # This is not neccesary the same revision as marked as head in the RCS file.
                   2444:   my $headrev = $curbranch || "1";
                   2445:   ($symrev{"MAIN"} = $headrev) =~ s/(\d+)$/0.$1/;
                   2446:
                   2447:   foreach $rev (@revorder) {
                   2448:     if ($rev =~ /^(\S*)\.\d+$/ && $headrev eq $1) {
                   2449:       $symrev{"HEAD"} = $rev;
                   2450:       last;
                   2451:     }
                   2452:   }
                   2453:   ($symrev{"HEAD"} = $headrev) =~ s/\.\d+$//
                   2454:     if (!defined($symrev{"HEAD"}));
                   2455:
                   2456:   #
                   2457:   # Now that we know all of the revision numbers, we can associate
                   2458:   # absolute revision numbers with all of the symbolic names, and
                   2459:   # pass them to the form so that the same association doesn't have
                   2460:   # to be built then.
                   2461:   #
                   2462:   undef @branchnames;
                   2463:   undef %branchpoint;
                   2464:   undef $sel;
                   2465:
                   2466:   foreach (reverse sort keys %symrev) {
                   2467:     $rev = $symrev{$_};
                   2468:     if ($rev =~ /^((.*)\.)?\b0\.(\d+)$/) {
                   2469:       push (@branchnames, $_);
                   2470:
                   2471:       #
                   2472:       # A revision number of A.B.0.D really translates into
                   2473:       # "the highest current revision on branch A.B.D".
                   2474:       #
                   2475:       # If there is no branch A.B.D, then it translates into
                   2476:       # the head A.B .
                   2477:       #
                   2478:       # This reasoning also applies to the main branch A.B,
                   2479:       # with the branch number 0.A, with the exception that
                   2480:       # it has no head to translate to if there is nothing on
                   2481:       # the branch, but I guess this can never happen?
                   2482:       #
                   2483:       # (the code below gracefully forgets about the branch
                   2484:       # if it should happen)
                   2485:       #
                   2486:       $head = defined($2) ? $2 : "";
                   2487:       $branch = $3;
                   2488:       $branchrev = $head . ($head ne "" ? "." : "") . $branch;
                   2489:       my $regex;
                   2490:       $regex = quotemeta $branchrev;
                   2491:       $rev   = $head;
                   2492:
                   2493:       foreach my $r (@revorder) {
                   2494:         if ($r =~ /^${regex}\b/) {
                   2495:           $rev = $branchrev;
                   2496:           last;
                   2497:         }
                   2498:       }
                   2499:       next if ($rev eq "");
                   2500:
                   2501:       if ($rev ne $head && $head ne "") {
3.131     scop     2502:         $branchpoint{$head} .= ', ' if ($branchpoint{$head});
3.120     scop     2503:         $branchpoint{$head} .= $_;
                   2504:       }
                   2505:     }
                   2506:     $revsym{$rev} .= ", " if ($revsym{$rev});
                   2507:     $revsym{$rev} .= $_;
3.136     scop     2508:     $sel .= sprintf("<option value=\"%s:%s\">%s</option>\n",
                   2509:                     htmlquote($rev), (htmlquote($_)) x 2);
3.120     scop     2510:   }
                   2511:
                   2512:   my ($onlyonbranch, $onlybranchpoint);
                   2513:   if ($onlyonbranch = $input{'only_with_tag'}) {
                   2514:     $onlyonbranch = $symrev{$onlyonbranch};
                   2515:     if ($onlyonbranch =~ s/\b0\.//) {
                   2516:       ($onlybranchpoint = $onlyonbranch) =~ s/\.\d+$//;
                   2517:     } else {
                   2518:       $onlybranchpoint = $onlyonbranch;
                   2519:     }
                   2520:
                   2521:     if (!defined($onlyonbranch) || $onlybranchpoint eq "") {
                   2522:       fatal("404 Tag not found", 'Tag %s not defined',
3.131     scop     2523:             $input{'only_with_tag'});
3.120     scop     2524:     }
                   2525:   }
                   2526:
                   2527:   undef @revisions;
                   2528:
                   2529:   foreach (@allrevisions) {
                   2530:     ($br  = $_)  =~ s/\.\d+$//;
                   2531:     ($brp = $br) =~ s/\.\d+$//;
                   2532:     next if ($onlyonbranch
                   2533:              && $br ne $onlyonbranch
                   2534:              && $_  ne $onlybranchpoint);
                   2535:     unshift (@revisions, $_);
                   2536:   }
                   2537:
                   2538:   if ($logsort eq "date") {
                   2539:
                   2540:     # Sort the revisions in commit order an secondary sort on revision
                   2541:     # (secondary sort needed for imported sources, or the first main
                   2542:     # revision gets before the same revision on the 1.1.1 branch)
                   2543:     @revdisplayorder =
                   2544:       sort { $date{$b} <=> $date{$a} || -revcmp($a, $b) } @revisions;
                   2545:   } elsif ($logsort eq "rev") {
                   2546:
                   2547:     # Sort the revisions in revision order, highest first
                   2548:     @revdisplayorder = reverse sort { revcmp($a, $b) } @revisions;
                   2549:   } else {
                   2550:
                   2551:     # No sorting. Present in the same order as rlog / cvs log
                   2552:     @revdisplayorder = @revisions;
                   2553:   }
                   2554:
                   2555: }
                   2556:
                   2557: sub printDiffLinks($$)
                   2558: {
                   2559:   my ($text, $url) = @_;
                   2560:   my @extra;
                   2561:
                   2562:   local $_;
                   2563:   for ($DIFFTYPES{$defaultDiffType}{'colored'} ? qw(u) : qw(h)) {
                   2564:     my $f = $_ eq $defaultDiffType ? '' : $_;
                   2565:
                   2566:     push @extra, &link(lc $DIFFTYPES{$_}{'descr'}, "$url&f=$f");
                   2567:   }
                   2568:
                   2569:   print &link($text, $url), ' (', join (', ', @extra), ')';
                   2570: }
                   2571:
                   2572: sub printLog($;$)
                   2573: {
                   2574:   my ($link, $br, $brp);
                   2575:   ($_, $link) = @_;
                   2576:   ($br  = $_)  =~ s/\.\d+$//;
                   2577:   ($brp = $br) =~ s/\.?\d+$//;
3.131     scop     2578:   my $prev;
3.120     scop     2579:
                   2580:   $link = 1 if (!defined($link));
3.131     scop     2581:   my $isDead = ($state{$_} eq 'dead');
                   2582:   my $isSelected = (defined($input{'r1'}) && $input{'r1'} eq $_);
3.120     scop     2583:
3.131     scop     2584:   print "<div class=\"diff-selected\">\n" if $isSelected;
3.120     scop     2585:   print "<p>\n";
3.131     scop     2586:
3.120     scop     2587:   if ($link && !$isDead) {
                   2588:     my ($filename);
                   2589:     ($filename = $where) =~ s/^.*\///;
                   2590:     my ($fileurl) = urlencode($filename);
                   2591:     print "<a name=\"rev$_\"></a>";
                   2592:
                   2593:     if (defined($revsym{$_})) {
                   2594:       foreach my $sym (split (", ", $revsym{$_})) {
3.136     scop     2595:         print '<a name="', hrefquote($sym), '"></a>';
3.120     scop     2596:       }
                   2597:     }
                   2598:
                   2599:     if (defined($revsym{$br})
                   2600:         && $revsym{$br}
                   2601:         && !defined($nameprinted{$br}))
                   2602:     {
                   2603:       foreach my $sym (split (", ", $revsym{$br})) {
3.136     scop     2604:         print '<a name="', hrefquote($sym), '"></a>';
3.120     scop     2605:       }
                   2606:       $nameprinted{$br} = 1;
                   2607:     }
                   2608:     print "\n Revision ";
                   2609:     &download_link($fileurl, $_, $_,
                   2610:       $defaultViewable ? "text/x-cvsweb-markup" : undef);
                   2611:
                   2612:     if ($defaultViewable) {
                   2613:       print " / (";
                   2614:       &download_link($fileurl, $_, "download", $mimetype);
                   2615:       print ")";
                   2616:     }
                   2617:
                   2618:     if (not $defaultTextPlain) {
                   2619:       print " / (";
                   2620:       &download_link($fileurl, $_, "as text", "text/plain");
                   2621:       print ")";
                   2622:     }
                   2623:
                   2624:     if (!$defaultViewable) {
                   2625:       print " / (";
                   2626:       &download_link($fileurl, $_, "view", "text/x-cvsweb-markup");
                   2627:       print ")";
                   2628:     }
                   2629:
                   2630:     if ($allow_annotate) {
                   2631:       print " - ";
                   2632:       print &link('annotate',
                   2633:                   sprintf('%s/%s?annotate=%s%s',
                   2634:                           $scriptname, urlencode($where), $_, $barequery));
                   2635:     }
                   2636:
                   2637:     # Plus a select link if enabled, and this version isn't selected
                   2638:     if ($allow_version_select) {
3.131     scop     2639:       print ' - ';
                   2640:       if ($isSelected) {
                   2641:         print '<b>[selected]</b>';
3.120     scop     2642:       } else {
3.131     scop     2643:         print &link('[select&nbsp;for&nbsp;diffs]',
                   2644:                     sprintf('%s?r1=%s%s#rev%s',
                   2645:                             $scriptwhere, $_, $barequery, $_));
3.120     scop     2646:       }
                   2647:     }
                   2648:   } else {
                   2649:     print "Revision <b>$_</b>";
                   2650:   }
                   2651:
                   2652:   if (/^1\.1\.1\.\d+$/) {
                   2653:     print " <i>(vendor branch)</i>";
                   2654:   }
                   2655:   if (defined @mytz) {
                   2656:     my ($est) = $mytz[(localtime($date{$_}))[8]];
                   2657:     print ", <i>", scalar localtime($date{$_}), " $est</i> (";
                   2658:   } else {
                   2659:     print ", <i>", scalar gmtime($date{$_}), " UTC</i> (";
                   2660:   }
3.136     scop     2661:   print readableTime(time() - $date{$_}, 1), ' ago)';
                   2662:   print ' by <i>', htmlquote($author{$_}), "</i>\n";
                   2663:
                   2664:   if ($revsym{$br}) {
                   2665:     printf "<br>Branch: <b>%s</b>\n",
                   2666:       $link ? link_tags($revsym{$br}) : htmlquote($revsym{$br});
                   2667:   }
                   2668:   if ($revsym{$_}) {
                   2669:     printf "<br>CVS Tags: <b>%s</b>\n",
                   2670:       $link ? link_tags($revsym{$_}) : htmlquote($revsym{$_});
                   2671:   }
                   2672:   if ($branchpoint{$_}) {
                   2673:     printf "<br>Branch point for: <b>%s</b>\n",
                   2674:       $link ? link_tags($branchpoint{$_}) : htmlquote($branchpoint{$_});
                   2675:   }
3.120     scop     2676:
                   2677:   # Find the previous revision
                   2678:   my @prevrev = split (/\./, $_);
                   2679:   do {
                   2680:     if (--$prevrev[$#prevrev] <= 0) {
                   2681:
                   2682:       # If it was X.Y.Z.1, just make it X.Y
                   2683:       pop (@prevrev);
                   2684:       pop (@prevrev);
                   2685:     }
                   2686:     $prev = join (".", @prevrev);
                   2687:   } until (defined($date{$prev}) || $prev eq "");
                   2688:
                   2689:   if ($prev ne "") {
                   2690:     if ($difflines{$_}) {
                   2691:       print "<br>Changes since <b>$prev: $difflines{$_} lines</b>";
                   2692:     }
                   2693:   }
                   2694:
                   2695:   if ($isDead) {
                   2696:     print "<br><b><i>FILE REMOVED</i></b>\n";
                   2697:   } elsif ($link) {
                   2698:     my %diffrev = ();
                   2699:     $diffrev{$_} = 1;
                   2700:     $diffrev{""} = 1;
                   2701:     print '<br>';
                   2702:     my $diff = 'Diff';
                   2703:
                   2704:     #
                   2705:     # Offer diff to previous revision
                   2706:     if ($prev) {
                   2707:       $diffrev{$prev} = 1;
                   2708:
                   2709:       my $url =
                   2710:         sprintf('%s.diff?r1=%s&r2=%s%s', $scriptwhere, $prev, $_, $barequery);
                   2711:
                   2712:       print $diff, " to previous ";
                   2713:       $diff = '';
                   2714:       printDiffLinks($prev, $url);
                   2715:     }
                   2716:
                   2717:     #
                   2718:     # Plus, if it's on a branch, and it's not a vendor branch,
                   2719:     # offer a diff with the branch point.
                   2720:     if ($revsym{$brp}
                   2721:       && !/^1\.1\.1\.\d+$/
                   2722:       && !defined($diffrev{$brp}))
                   2723:     {
                   2724:       my $url =
                   2725:         sprintf('%s.diff?r1=%s&r2=%s%s', $scriptwhere, $brp, $_, $barequery);
                   2726:
                   2727:       print $diff, " to branchpoint ";
                   2728:       $diff = '';
                   2729:       printDiffLinks($brp, $url);
                   2730:     }
                   2731:
                   2732:     #
                   2733:     # Plus, if it's on a branch, and it's not a vendor branch,
                   2734:     # offer to diff with the next revision of the higher branch.
                   2735:     # (e.g. change gets committed and then brought
                   2736:     # over to -stable)
                   2737:     if (/^\d+\.\d+\.\d+/ && !/^1\.1\.1\.\d+$/) {
                   2738:       my ($i, $nextmain);
                   2739:
                   2740:       for ($i = 0; $i < $#revorder && $revorder[$i] ne $_; $i++) {
                   2741:       }
                   2742:       my @tmp2 = split (/\./, $_);
                   2743:       for ($nextmain = ""; $i > 0; $i--) {
                   2744:         my $next = $revorder[$i - 1];
                   2745:         my @tmp1 = split (/\./, $next);
                   2746:
                   2747:         if (@tmp1 < @tmp2) {
                   2748:           $nextmain = $next;
                   2749:           last;
                   2750:         }
                   2751:
                   2752:         # Only the highest version on a branch should have
                   2753:         # a diff for the "next main".
                   2754:         last
                   2755:           if (@tmp1 - 1 <= @tmp2
                   2756:           && join (".", @tmp1[0 .. $#tmp1 - 1]) eq
                   2757:           join (".", @tmp2[0 .. $#tmp1 - 1]));
                   2758:       }
                   2759:
                   2760:       if (!defined($diffrev{$nextmain})) {
                   2761:         $diffrev{$nextmain} = 1;
                   2762:
                   2763:         my $url = sprintf('%s.diff?r1=%s&r2=%s%s',
                   2764:           $scriptwhere, $nextmain, $_, $barequery);
                   2765:
                   2766:         print $diff, " next main ";
                   2767:         $diff = '';
                   2768:         printDiffLinks($nextmain, $url);
                   2769:       }
                   2770:     }
                   2771:
                   2772:     # Plus if user has selected only r1, then present a link
                   2773:     # to make a diff to that revision
                   2774:     if (defined($input{"r1"}) && !defined($diffrev{$input{"r1"}})) {
                   2775:       $diffrev{$input{"r1"}} = 1;
                   2776:
                   2777:       my $url = sprintf('%s.diff?r1=%s&r2=%s%s',
                   2778:         $scriptwhere, $input{'r1'}, $_, $barequery);
                   2779:
                   2780:       print $diff, " to selected ";
                   2781:       $diff = '';
                   2782:       printDiffLinks($input{'r1'}, $url);
                   2783:     }
                   2784:
                   2785:   }
                   2786:   print "\n</p>\n<pre>\n";
                   2787:   print &htmlify($log{$_}, $allow_log_extra);
                   2788:   print "</pre>\n";
3.131     scop     2789:   print "</div>\n" if $isSelected;
3.120     scop     2790: }
                   2791:
3.132     scop     2792: #
                   2793: # Generates the HTML view for CvsGraph.
                   2794: #
                   2795: sub doGraphView($)
                   2796: {
                   2797:   my ($rev) = @_;
                   2798:
                   2799:   (my $pathname = $where) =~ s|[^/]*$||;
                   2800:   (my $filename = $where) =~ s|^.*/||;
                   2801:
                   2802:   navigateHeader($scriptwhere, $pathname, $filename, $rev, 'graph');
                   2803:
3.146     scop     2804:   my $title = 'Revision graph of ' . htmlquote($pathname . $filename);
3.132     scop     2805:   my $mapname = 'CvsGraphMap';
                   2806:   my $ctype = $defaultViewable ? '&amp;content-type=text/x-cvsweb-markup' : '';
                   2807:
3.151   ! scop     2808:   printf(<<EOF, $title, $mapname, $cvstree, $rev, $title);
3.146     scop     2809: <h3 style="text-align: center">%s</h3>
3.151   ! scop     2810: <div align="center"><img border="0" usemap="#%s" src="?cvsroot=%s&amp;graph=%s&amp;makeimage=1" alt="%s"></div>
3.146     scop     2811: EOF
3.132     scop     2812:
3.135     scop     2813:   my @graph_cmd =
                   2814:     ($CMD{cvsgraph},
                   2815:      '-r', $cvsroot,
                   2816:      '-i',
                   2817:      '-M', $mapname,
3.146     scop     2818:      '-x', 4,
                   2819:      "-Omap_branch_href=\"href=\\\"./?only_with_tag=%(%t%)$barequery\\\"\"",
                   2820:      "-Omap_rev_href=\"href=\\\"?rev=%(%R%)$barequery$ctype\\\"\"",
                   2821:      "-Omap_diff_href=\"href=\\\"%(%F%).diff" .
                   2822:      "?r1=%(%P%)&amp;r2=%(%R%)$barequery\\\"\"",
3.135     scop     2823:      );
3.132     scop     2824:   push(@graph_cmd, '-c', $cvsgraph_config) if $cvsgraph_config;
                   2825:
                   2826:   my $pipe = IO::Pipe->new();
                   2827:   $pipe->reader(@graph_cmd, $pathname . $filename . ',v');
                   2828:   while (<$pipe>) {
                   2829:     print;
                   2830:   }
                   2831:   $pipe = undef;
                   2832:
                   2833:   html_footer();
                   2834: }
                   2835:
                   2836: #
                   2837: # Generates a graph using CvsGraph.
                   2838: #
                   2839: sub doGraph($)
                   2840: {
                   2841:   my ($rev) = @_;
                   2842:
                   2843:   (my $pathname = $where) =~ s|[^/]*$||;
                   2844:   (my $filename = $where) =~ s|^.*/||;
                   2845:
                   2846:   http_header('image/png');
                   2847:
                   2848:   my @graph_cmd = ($CMD{cvsgraph}, '-r', $cvsroot);
                   2849:   push(@graph_cmd, '-c', $cvsgraph_config) if $cvsgraph_config;
                   2850:
                   2851:   my $pipe = IO::Pipe->new();
                   2852:   $pipe->reader(@graph_cmd, $pathname . $filename . ',v');
                   2853:   {
                   2854:     local $/ = undef;
                   2855:     binmode(\*STDOUT);
                   2856:     print <$pipe>;
                   2857:   }
                   2858:   $pipe = undef;
                   2859: }
                   2860:
                   2861:
3.120     scop     2862: sub doLog($)
                   2863: {
                   2864:   my ($fullname) = @_;
                   2865:
                   2866:   readLog($fullname);
                   2867:
                   2868:   html_header("CVS log for $where");
3.144     scop     2869:
                   2870:   (my $upwhere  = $where) =~ s|(Attic/)?[^/]+$||;
                   2871:   (my $filename = $where) =~ s|^.*/||;
                   2872:   my $backurl = $scriptname . "/" . urlencode($upwhere) . $query;
                   2873:
3.120     scop     2874:   print "<p>\n ";
                   2875:   print &link($backicon, "$backurl#$filename"), " <b>Up to ",
                   2876:     &clickablePath($upwhere, 1), "</b>\n</p>\n";
                   2877:   print "<p>\n ";
                   2878:   print &link('Request diff between arbitrary revisions', '#diff');
3.132     scop     2879:   if ($allow_cvsgraph) {
                   2880:     print ' / ', &graph_link('', 1, 'Display revisions graphically');
                   2881:   }
3.120     scop     2882:   print "\n</p>\n<hr noshade>\n";
                   2883:
                   2884:   print "<p>\n";
3.144     scop     2885:   print $curbranch
                   2886:     ? ("Default branch: ", ($revsym{$curbranch} || $curbranch))
                   2887:     : "No default branch";
3.120     scop     2888:   print "<br>\n";
                   2889:
3.144     scop     2890:   print "Current tag: $input{only_with_tag}<br>\n" if $input{only_with_tag};
3.120     scop     2891:   print "</p>\n";
                   2892:
                   2893:   undef %nameprinted;
                   2894:
                   2895:   for (my $i = 0; $i <= $#revdisplayorder; $i++) {
                   2896:     print "<hr size=\"1\" noshade>\n";
                   2897:     printLog($revdisplayorder[$i]);
                   2898:   }
                   2899:
3.144     scop     2900:   printf(<<EOF, $scriptwhere);
                   2901: <hr noshade>
                   2902: <p>
                   2903:  <a name="diff">
                   2904:   This form allows you to request diff's between any two revisions of a file.
                   2905:   You may select a symbolic revision name using the selection box or you may
                   2906:   type in a numeric name using the type-in text box.
                   2907:  </a>
                   2908: </p>
                   2909: <form method="get" action="%s.diff" name="diff_select">
                   2910: EOF
3.120     scop     2911:
                   2912:   foreach (@stickyvars) {
                   2913:     printf('<input type="hidden" name="%s" value="%s">', $_, $input{$_})
                   2914:       if (defined($input{$_})
                   2915:           && ((!defined($DEFAULTVALUE{$_}) || $input{$_} ne $DEFAULTVALUE{$_})
                   2916:               && $input{$_} ne ""));
                   2917:   }
3.144     scop     2918:
                   2919:   print <<EOF;
                   2920: <table style="border: none">
                   2921: <tr>
                   2922: <td align="right">
                   2923: <label for="r1" accesskey="1">Diffs between </label>
                   2924: <select id="r1" name="r1">
                   2925: <option value="text" selected>Use Text Field</option>
                   2926: EOF
                   2927:   print $sel, "</select>\n";
                   2928:
                   2929:   my $diffrev = defined($input{r1}) ?
                   2930:     $input{r1} : $revdisplayorder[$#revdisplayorder];
                   2931:
                   2932:   printf(<<EOF, $inputTextSize, $diffrev);
3.147     scop     2933: <input type="text" size="%s" name="tr1" value="%s" onchange="this.form.r1.selectedIndex=0">
3.144     scop     2934: </td>
                   2935: <td><br></td>
                   2936: </tr><tr>
                   2937: <td align="right">
                   2938: <label for="r2" accesskey="2">and </label>
                   2939: <select id="r2" name="r2">
                   2940: <option value="text" selected>Use Text Field</option>
                   2941: EOF
                   2942:   print $sel, "</select>\n";
                   2943:
                   2944:   $diffrev = defined($input{r2}) ? $input{r2} : $revdisplayorder[0];
                   2945:
                   2946:   printf(<<EOF, $inputTextSize, $diffrev, $scriptwhere);
                   2947: <input type="text" size="%s" name="tr2" value="%s" onchange="this.form.r2.selectedIndex=0">
                   2948: </td>
                   2949: <td><input type="submit" value="  Get Diffs  " accesskey="G"></td>
                   2950: </tr>
                   2951: </table>
                   2952: </form>
                   2953: <hr noshade>
                   2954: <form method="get" action="%s">
                   2955: <table style="border: none">
                   2956: <tr>
                   2957:  <td align="right">
                   2958:   <label for="f" accesskey="D">Preferred Diff type:</label>
                   2959:  </td><td>
                   2960: EOF
                   2961:
3.120     scop     2962:   printDiffSelect($use_java_script);
3.144     scop     2963:
                   2964:   print <<EOF;
                   2965:  </td>
                   2966:  <td></td>
                   2967: </tr>
                   2968: EOF
3.120     scop     2969:
                   2970:   if (@branchnames) {
3.144     scop     2971:
                   2972:     printf(<<EOF, $use_java_script ? ' onchange="this.form.submit()"' : '');
                   2973: <tr>
                   2974: <td align="right">
                   2975: <label for="only_with_tag" accesskey="B">View only Branch:</label>
                   2976: </td><td>
                   2977: <a name="branch"></a>
                   2978: <select id="only_with_tag" name="only_with_tag"%s>
                   2979: EOF
                   2980:     print '<option value=""';
                   2981:     print ' selected'
                   2982:       if (defined($input{"only_with_tag"}) && $input{"only_with_tag"} eq '');
3.120     scop     2983:     print ">Show all branches</option>\n";
                   2984:
                   2985:     foreach (reverse sort @branchnames) {
3.136     scop     2986:       my $selected =
                   2987:         (defined($input{"only_with_tag"}) && $input{"only_with_tag"} eq $_);
                   2988:       printf("<option%s>%s</option>\n",
                   2989:              $selected ? ' selected' : '',
                   2990:              htmlquote($_));
3.120     scop     2991:     }
3.144     scop     2992:     print <<EOF
                   2993: </select>
                   2994: </td>
                   2995: <td></td>
                   2996: </tr>
                   2997: EOF
3.120     scop     2998:   }
                   2999:
                   3000:   foreach (@stickyvars) {
                   3001:     next if ($_ eq "f");
                   3002:     next if ($_ eq "only_with_tag");
                   3003:     next if ($_ eq "logsort");
                   3004:     print "<input type=\"hidden\" name=\"$_\" value=\"$input{$_}\">\n"
                   3005:       if (defined($input{$_})
                   3006:           && (!defined($DEFAULTVALUE{$_})
                   3007:               || $input{$_} ne $DEFAULTVALUE{$_})
                   3008:           && $input{$_} ne "");
                   3009:   }
3.144     scop     3010:   print <<EOF;
                   3011:  <tr>
                   3012:   <td align="right">
                   3013:    <a name="logsort"></a>
                   3014:    <label for="logsort" accesskey="L">Sort log by:</label>
                   3015:   </td><td>
                   3016: EOF
3.120     scop     3017:   printLogSortSelect($use_java_script);
3.144     scop     3018:   print <<EOF;
                   3019:   </td>
                   3020:   <td><input type="submit" value="  Set  " accesskey="S"></td>
                   3021:  </tr>
                   3022: </table>
                   3023: </form>
                   3024: EOF
3.120     scop     3025:   html_footer();
                   3026: }
                   3027:
                   3028: sub flush_diff_rows($$$$)
                   3029: {
                   3030:   my ($leftColRef, $rightColRef, $leftRow, $rightRow) = @_;
                   3031:
                   3032:   if (!defined($state)) {
                   3033:     return;
                   3034:   }
                   3035:
                   3036:   if ($state eq "PreChangeRemove") {    # we just got remove-lines before
3.133     scop     3037:     for (my $j = 0; $j < $leftRow; $j++) {
3.144     scop     3038:       printf(<<EOF, scalar(@$leftColRef[$j]));
                   3039: <tr>
                   3040:  <td class="diff-removed">&nbsp;%s</td>
                   3041:  <td class="diff-empty">&nbsp;</td>
                   3042: </tr>
                   3043: EOF
3.120     scop     3044:     }
                   3045:   } elsif ($state eq "PreChange") {     # state eq "PreChange"
                   3046:                                         # we got removes with subsequent adds
                   3047:
3.133     scop     3048:     for (my $j = 0; $j < $leftRow || $j < $rightRow; $j++) {  # dump both cols
3.120     scop     3049:       print "<tr>\n";
                   3050:       if ($j < $leftRow) {
                   3051:         print "<td class=\"diff-changed\">&nbsp;@$leftColRef[$j]</td>";
                   3052:       } else {
                   3053:         print "<td class=\"diff-changed-missing\">&nbsp;</td>";
                   3054:       }
                   3055:       print "\n";
                   3056:
                   3057:       if ($j < $rightRow) {
                   3058:         print "<td class=\"diff-changed\">&nbsp;@$rightColRef[$j]</td>";
                   3059:       } else {
                   3060:         print "<td class=\"diff-changed-missing\">&nbsp;</td>";
                   3061:       }
                   3062:       print "\n</tr>\n";
                   3063:     }
                   3064:   }
3.1       knu      3065: }
                   3066:
                   3067: ##
                   3068: # Function to generate Human readable diff-files
                   3069: # human_readable_diff(String revision_to_return_to);
                   3070: ##
3.144     scop     3071: sub human_readable_diff($$)
3.120     scop     3072: {
                   3073:   my ($fh, $rev) = @_;
3.144     scop     3074:
3.120     scop     3075:   my ($date1, $date2, $r1d, $r2d, $r1r, $r2r, $rev1, $rev2, $sym1, $sym2);
                   3076:
3.144     scop     3077:   (my $where_nd       = $where)       =~ s/.diff$//;
                   3078:   (my $filename       = $where_nd)    =~ s/^.*\///;
                   3079:   (my $pathname       = $where_nd)    =~ s/(Attic\/)?[^\/]*$//;
                   3080:   (my $scriptwhere_nd = $scriptwhere) =~ s/.diff$//;
3.120     scop     3081:
3.133     scop     3082:   navigateHeader($scriptwhere_nd, $pathname, $filename, $rev, 'diff');
3.120     scop     3083:
                   3084:   # Read header to pick up read revision and date, if possible
                   3085:   while (<$fh>) {
                   3086:     ($r1d, $r1r) = /\t(.*)\t(.*)$/ if (/^--- /);
                   3087:     ($r2d, $r2r) = /\t(.*)\t(.*)$/ if (/^\+\+\+ /);
                   3088:     last if (/^\+\+\+ /);
                   3089:   }
                   3090:
                   3091:   if (defined($r1r) && $r1r =~ /^(\d+\.)+\d+$/) {
                   3092:     $rev1  = $r1r;
                   3093:     $date1 = $r1d;
                   3094:   }
                   3095:   if (defined($r2r) && $r2r =~ /^(\d+\.)+\d+$/) {
                   3096:     $rev2  = $r2r;
                   3097:     $date2 = $r2d;
                   3098:   }
                   3099:
3.144     scop     3100:   # Using <table style=\"border: none\" here breaks NS 4.x badly...
                   3101:   printf(<<EOF, $where_nd, $rev1, $rev2, $rev1);
                   3102: <h3 style="text-align: center">Diff for /%s between versions %s and %s</h3>
3.147     scop     3103: <table border="0" cellspacing="0" cellpadding="0" width="100%%">
3.144     scop     3104: <tr style="background-color: #ffffff">
3.147     scop     3105: <th style="text-align: center; vertical-align: top" width="50%%">version %s
3.144     scop     3106: EOF
                   3107:   print ', ', $date1 if defined($date1);
                   3108:   print "<br>Tag: $sym1\n" if $sym1;
                   3109:   printf(<<EOF, $rev2);
                   3110: </th>
3.147     scop     3111: <th style="text-align: center; vertical-align: top" width="50%%">version %s
3.144     scop     3112: EOF
                   3113:   print ', ', $date2 if defined($date2);
                   3114:   print "<br>Tag: $sym2\n" if $sym2;
3.120     scop     3115:   print "</th>\n";
                   3116:
                   3117:   # Process diff text
                   3118:   # prefetch several lines
                   3119:   my @buf = head($fh);
3.144     scop     3120:   my %d = scan_directives(@buf);
3.120     scop     3121:
3.144     scop     3122:   my $leftRow  = 0;
                   3123:   my $rightRow = 0;
                   3124:   my ($difftxt, @rightCol, @leftCol, $oldline, $newline, $funname);
                   3125:   my ($diffcode, $rest);
3.120     scop     3126:
                   3127:   while (@buf || !eof($fh)) {
                   3128:     $difftxt = @buf ? shift @buf : <$fh>;
                   3129:
                   3130:     if ($difftxt =~ /^@@/) {
                   3131:       ($oldline, $newline, $funname) =
                   3132:         $difftxt =~ /@@ \-([0-9]+).*\+([0-9]+).*@@(.*)/;
                   3133:       $funname = htmlquote($funname);
                   3134:       $funname =~ s/\s/&nbsp;/go;
3.144     scop     3135:
                   3136:       printf(<<EOF, $oldline, $funname, $newline, $funname);
                   3137: <tr class="diff-heading">
3.147     scop     3138: <td width="50%%">
                   3139:  <table width="100%%" border="1" cellpadding="5">
3.144     scop     3140:   <tr>
                   3141:    <td><b>Line&nbsp;%s</b>&nbsp;<span style="font-size: smaller">%s</span></td>
                   3142:   </tr>
                   3143:  </table>
3.147     scop     3144: </td><td width="50%%">
                   3145:  <table width="100%%" border="1" cellpadding="5">
3.144     scop     3146:   <tr>
                   3147:    <td><b>Line&nbsp;%s</b>&nbsp;<span style="font-size: smaller">%s</span></td>
                   3148:   </tr>
                   3149:  </table>
                   3150: </td>
                   3151: EOF
                   3152:
3.120     scop     3153:       $state    = "dump";
                   3154:       $leftRow  = 0;
                   3155:       $rightRow = 0;
                   3156:     } else {
                   3157:       ($diffcode, $rest) = $difftxt =~ /^([-+ ])(.*)/;
                   3158:       $_ = spacedHtmlText($rest, $d{'tabstop'});
                   3159:
                   3160:       #########
                   3161:       # little state machine to parse unified-diff output (Hen, zeller@think.de)
                   3162:       # in order to get some nice 'ediff'-mode output
                   3163:       # states:
                   3164:       #  "dump"             - just dump the value
                   3165:       #  "PreChangeRemove"  - we began with '-' .. so this could be the start of a 'change' area or just remove
                   3166:       #  "PreChange"        - okey, we got several '-' lines and moved to '+' lines -> this is a change block
                   3167:       ##########
                   3168:
                   3169:       if ($diffcode eq '+') {
                   3170:         if ($state eq "dump")
                   3171:         {    # 'change' never begins with '+': just dump out value
3.144     scop     3172:           printf(<<EOF, $_);
                   3173: <tr>
                   3174:  <td class="diff-empty">&nbsp;</td>
                   3175:  <td class="diff-added">&nbsp;%s</td>
                   3176: </tr>
                   3177: EOF
3.120     scop     3178:         } else {    # we got minus before
                   3179:           $state = "PreChange";
                   3180:           $rightCol[$rightRow++] = $_;
                   3181:         }
                   3182:       } elsif ($diffcode eq '-') {
                   3183:         $state = "PreChangeRemove";
                   3184:         $leftCol[$leftRow++] = $_;
                   3185:       } else {    # empty diffcode
                   3186:         flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
3.147     scop     3187:         printf(<<EOF, $_, $_);
3.144     scop     3188: <tr>
                   3189:  <td class="diff-same">&nbsp;%s</td>
                   3190:  <td class="diff-same">&nbsp;%s</td>
                   3191: </tr>
                   3192: EOF
3.120     scop     3193:         $state    = "dump";
                   3194:         $leftRow  = 0;
                   3195:         $rightRow = 0;
                   3196:       }
                   3197:     }
                   3198:   }
                   3199:   close($fh);
                   3200:
                   3201:   flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
                   3202:
                   3203:   # state is empty if we didn't have any change
                   3204:   if (!$state) {
3.144     scop     3205:     print <<EOF;
                   3206: <tr>
                   3207:  <td colspan="2">&nbsp;</td>
                   3208: </tr>
                   3209: <tr class="diff-empty">
                   3210:  <td colspan="2" align="center"><b>- No viewable change -</b></td>
                   3211: </tr>
                   3212: EOF
3.120     scop     3213:   }
                   3214:
3.144     scop     3215:   printf(<<EOF, $scriptwhere, $rev1, $rev2);
                   3216: </table>
3.147     scop     3217: <hr style="width: 100%%" noshade>
3.144     scop     3218: <form method="get" action="%s">
                   3219: <table style="border: none">
                   3220: <tr>
                   3221: <td>
                   3222:  <table border="1">
                   3223:   <tr>
                   3224:    <td>
                   3225:     Legend:<br>
                   3226:     <table style="border: none" cellspacing="0" cellpadding="1">
                   3227:      <tr>
                   3228:       <td align="center" class="diff-removed">Removed from v.%s</td>
                   3229:       <td class="diff-empty">&nbsp;</td>
                   3230:      </tr><tr class="diff-changed">
                   3231:       <td align="center" colspan="2">changed lines</td>
                   3232:      </tr><tr>
                   3233:       <td class="diff-empty">&nbsp;</td>
                   3234:       <td align="center" class="diff-added">Added in v.%s</td>
                   3235:      </tr>
                   3236:     </table>
                   3237:    </td>
                   3238:   </tr>
                   3239:  </table>
                   3240: </td>
                   3241: <td>
                   3242: EOF
3.120     scop     3243:
                   3244:   # Print format selector
                   3245:   foreach my $var (keys %input) {
                   3246:     next if ($var eq "f");
                   3247:     next if (defined($DEFAULTVALUE{$var})
                   3248:              && $DEFAULTVALUE{$var} eq $input{$var});
                   3249:     print "<input type=\"hidden\" name=\"", urlencode($var), "\" value=\"",
                   3250:       urlencode($input{$var}), "\">\n";
                   3251:   }
                   3252:   printDiffSelect($use_java_script);
                   3253:
3.144     scop     3254:   print <<EOF;
                   3255: <input type="submit" value="Show">
                   3256: </td>
                   3257: </tr>
                   3258: </table>
                   3259: </form>
                   3260: EOF
3.120     scop     3261: }
                   3262:
                   3263: sub navigateHeader($$$$$)
                   3264: {
                   3265:   my ($swhere, $path, $filename, $rev, $title) = @_;
                   3266:   $swhere = "" if ($swhere eq $scriptwhere);
                   3267:   $swhere = './' . urlencode($filename) if ($swhere eq "");
                   3268:
3.136     scop     3269:   my $qfile = htmlquote($filename);
                   3270:   my $qpath = htmlquote($path);
3.100     knu      3271:
3.133     scop     3272:   http_header();
                   3273:
3.120     scop     3274:   print <<EOF;
3.100     knu      3275: $HTML_DOCTYPE
3.89      knu      3276: <html>
                   3277: <head>
3.136     scop     3278: <title>$qpath$qfile - $title - $rev</title>
3.144     scop     3279: $HTML_META$CSS</head>
3.129     scop     3280: <body class="src">
                   3281: <table width="100%" class="navigate-header" style="border: none" cellspacing="0" cellpadding="1">
3.144     scop     3282:  <tr valign="bottom">
                   3283:   <td>
3.64      knu      3284: EOF
                   3285:
3.120     scop     3286:   print &link($backicon, "$swhere$query#rev$rev");
3.136     scop     3287:   printf '<b>Return to %s CVS log',
                   3288:     &link(htmlquote($filename), "$swhere$query#rev$rev");
3.120     scop     3289:   print "</b> $fileicon</td>";
                   3290:
3.144     scop     3291:   printf(<<EOF, $diricon, &clickablePath($path, 1));
                   3292:   <td align="right">%s <b>Up to %s</b></td>
                   3293:  </tr>
                   3294: </table>
                   3295: EOF
3.120     scop     3296: }
                   3297:
                   3298: sub plural_write($$)
                   3299: {
                   3300:   my ($num, $text) = @_;
                   3301:   if ($num != 1) {
                   3302:     $text .= "s";
                   3303:   }
                   3304:
                   3305:   if ($num > 0) {
                   3306:     return join (' ', $num, $text);
                   3307:   } else {
                   3308:     return "";
                   3309:   }
3.1       knu      3310: }
                   3311:
                   3312: ##
                   3313: # print readable timestamp in terms of
                   3314: # '..time ago'
                   3315: # H. Zeller <zeller@think.de>
                   3316: ##
3.120     scop     3317: sub readableTime($$)
                   3318: {
                   3319:   my ($secs, $long) = @_;
                   3320:
                   3321:   # this function works correct for time >= 2 seconds
                   3322:   if ($secs < 2) {
                   3323:     return "very little time";
                   3324:   }
                   3325:
                   3326:   my %desc = (
3.133     scop     3327:               1        => 'second',
                   3328:               60       => 'minute',
                   3329:               3600     => 'hour',
                   3330:               86400    => 'day',
                   3331:               604800   => 'week',
                   3332:               2628000  => 'month',
                   3333:               31536000 => 'year'
                   3334:              );
                   3335:
3.120     scop     3336:   my @breaks = sort { $a <=> $b } keys %desc;
3.133     scop     3337:   my $i = 0;
3.120     scop     3338:
                   3339:   while ($i <= $#breaks && $secs >= 2 * $breaks[$i]) {
                   3340:     $i++;
                   3341:   }
                   3342:   $i--;
3.133     scop     3343:   my $break  = $breaks[$i];
                   3344:   my $retval = plural_write(int($secs / $break), $desc{$break});
3.120     scop     3345:
                   3346:   if ($long == 1 && $i > 0) {
                   3347:     my $rest = $secs % $break;
                   3348:     $i--;
                   3349:     $break = $breaks[$i];
                   3350:     my $resttime = plural_write(int($rest / $break), $desc{$break});
                   3351:     if ($resttime) {
                   3352:       $retval .= ", $resttime";
                   3353:     }
                   3354:   }
3.1       knu      3355:
3.120     scop     3356:   return $retval;
3.1       knu      3357: }
                   3358:
                   3359: ##
                   3360: # clickablePath(String pathname, boolean last_item_clickable)
                   3361: #
                   3362: # returns a html-ified path whereas each directory is a link for
                   3363: # faster navigation. last_item_clickable controls whether the
                   3364: # basename (last directory/file) is a link as well
                   3365: ##
3.120     scop     3366: sub clickablePath($$)
                   3367: {
                   3368:   my ($pathname, $clickLast) = @_;
                   3369:
3.144     scop     3370:   # This should never happen (see chooseCVSRoot()), but let's be sure...
                   3371:   return "[$cvstree]" if ($pathname eq '/');
3.120     scop     3372:
3.144     scop     3373:   my $retval =
                   3374:     ' ' . &link("[$cvstree]", sprintf('%s/%s#dirlist', $scriptname, $query));
                   3375:   my $wherepath = '';
                   3376:   my ($lastslash) = $pathname =~ m|/$|;
                   3377:
                   3378:   foreach (split (/\//, $pathname)) {
                   3379:     $retval .= ' / ';
                   3380:     $wherepath .= "/$_";
                   3381:     my $last = "$wherepath/" eq "/$pathname" || $wherepath eq "/$pathname";
                   3382:
                   3383:     if ($clickLast || !$last) {
                   3384:       $retval .= &link(htmlquote($_),
                   3385:                        join ('',
                   3386:                              $scriptname, urlencode($wherepath),
                   3387:                              (!$last || $lastslash ? '/' : ''), $query,
                   3388:                              (!$last || $lastslash ? "#dirlist" : "")));
                   3389:     } else {    # do not make a link to the current dir
                   3390:       $retval .= htmlquote($_);
3.120     scop     3391:     }
                   3392:   }
                   3393:   return $retval;
                   3394: }
                   3395:
3.144     scop     3396:
3.120     scop     3397: sub chooseCVSRoot()
                   3398: {
                   3399:
                   3400:   print "<form method=\"get\" action=\"${scriptwhere}\">\n";
                   3401:   if (2 <= @CVSROOT) {
3.133     scop     3402:     foreach my $k (keys %input) {
3.120     scop     3403:       print "<input type=\"hidden\" name=\"$k\" value=\"$input{$k}\">\n"
                   3404:         if ($input{$k}) && ($k ne "cvsroot");
                   3405:     }
                   3406:
                   3407:     # Form-Elements look wierd in Netscape if the background
                   3408:     # isn't gray and the form elements are not placed
                   3409:     # within a table ...
3.144     scop     3410:     printf(<<EOF, $use_java_script ? ' onchange="this.form.submit()"' : '');
                   3411: <table style="border: none">
                   3412: <tr>
                   3413: <td><label for="cvsroot" accesskey="C">CVS Root:</label></td>
                   3414: <td>
                   3415: <select id="cvsroot" name="cvsroot"%s>
                   3416: EOF
3.120     scop     3417:
3.133     scop     3418:     foreach my $k (@CVSROOT) {
3.136     scop     3419:       printf("<option value=\"%s\"%s>%s</option>\n",
                   3420:              htmlquote($k),
                   3421:              ($k eq $cvstree) ? ' selected' : '',
                   3422:              htmlquote($CVSROOTdescr{$k} || $k));
3.120     scop     3423:     }
                   3424:     print "</select>\n</td>\n<td>";
                   3425:   } else {
                   3426:
                   3427:     # no choice -- but we need the form to select module/path,
                   3428:     # at least for Netscape
                   3429:     print "<p>\n";
                   3430:     print "CVS Root: <b>[$cvstree]</b>";
                   3431:   }
                   3432:
3.144     scop     3433:   print <<EOF;
                   3434: <label for="mpath" accesskey="M">
                   3435: Module path or alias:
                   3436: <input type="text" id="mpath" name="path" value="" size="15">
                   3437: </label>
                   3438: <input type="submit" value="Go" accesskey="O">
                   3439: EOF
3.120     scop     3440:
3.144     scop     3441:   print 2 <= @CVSROOT ? "</td>\n</tr>\n</table>" : '</p>';
3.120     scop     3442:   print "\n</form>";
                   3443: }
                   3444:
                   3445: sub chooseMirror()
                   3446: {
                   3447:
                   3448:   # This code comes from the original BSD-cvsweb
                   3449:   # and may not be useful for your site; If you don't
                   3450:   # set %MIRRORS this won't show up, anyway.
                   3451:   scalar(%MIRRORS) or return;
                   3452:
                   3453:   # Should perhaps exclude the current site somehow...
                   3454:   print "\n<p>\nThis CVSweb is mirrored in\n";
                   3455:
                   3456:   my @tmp = map(&link(htmlquote($_), $MIRRORS{$_}), sort keys %MIRRORS);
                   3457:   my $tmp = pop (@tmp);
                   3458:
                   3459:   if (scalar(@tmp)) {
                   3460:     print join (', ', @tmp), ' and ';
                   3461:   }
                   3462:
                   3463:   print "$tmp.\n</p>\n";
                   3464: }
                   3465:
                   3466: sub fileSortCmp()
                   3467: {
                   3468:   my ($comp) = 0;
                   3469:   my ($c, $d, $af, $bf);
                   3470:
                   3471:   ($af = $a) =~ s/,v$//;
                   3472:   ($bf = $b) =~ s/,v$//;
                   3473:   my ($rev1, $date1, $log1, $author1, $filename1) = @{$fileinfo{$af}}
                   3474:     if (defined($fileinfo{$af}));
                   3475:   my ($rev2, $date2, $log2, $author2, $filename2) = @{$fileinfo{$bf}}
                   3476:     if (defined($fileinfo{$bf}));
                   3477:
3.140     scop     3478:   if (defined($filename1) && defined($filename2) &&
                   3479:       $af eq $filename1   && $bf eq $filename2)
3.120     scop     3480:   {
                   3481:
                   3482:     # Two files
3.140     scop     3483:     $comp = -revcmp($rev1, $rev2)             if ($byrev  && $rev1  && $rev2);
                   3484:     $comp = ($date2   <=> $date1)             if ($bydate && $date1 && $date2);
                   3485:     if ($input{ignorecase}) {
                   3486:       $comp = (uc($log1)    cmp uc($log2))    if ($bylog && $log1 && $log2);
                   3487:       $comp = (uc($author1) cmp uc($author2)) if ($byauthor &&
                   3488:                                                   $author1 && $author2);
                   3489:     } else {
                   3490:       $comp = ($log1    cmp $log2)            if ($bylog && $log1 && $log2);
                   3491:       $comp = ($author1 cmp $author2)         if ($byauthor &&
                   3492:                                                   $author1 && $author2);
                   3493:     }
3.120     scop     3494:   }
                   3495:
                   3496:   if ($comp == 0) {
                   3497:
                   3498:     # Directories first, then files under version control,
                   3499:     # then other, "rogue" files.
                   3500:     # Sort by filename if no other criteria available.
                   3501:
                   3502:     my $ad = (
                   3503:       (-d "$fullname/$a")
                   3504:       ? 'D'
                   3505:       : (defined($fileinfo{$af}) ? 'F' : 'R')
                   3506:     );
                   3507:     my $bd = (
                   3508:       (-d "$fullname/$b")
                   3509:       ? 'D'
                   3510:       : (defined($fileinfo{$bf}) ? 'F' : 'R')
                   3511:     );
                   3512:     ($c = $a) =~ s|.*/||;
                   3513:     ($d = $b) =~ s|.*/||;
3.144     scop     3514:
                   3515:     my ($l, $r) = ("$ad$c", "$bd$d");
                   3516:     $comp = $input{ignorecase} ? (uc($l) cmp uc($r)) : ($l cmp $r);
                   3517:
                   3518:     # Parent dir is always first, then Attic.
                   3519:     if ($comp != 0) {
                   3520:       if ($l eq 'D..') {
3.149     scop     3521:         $comp = -1;
3.144     scop     3522:       } elsif ($r eq 'D..') {
3.149     scop     3523:         $comp = 1;
3.144     scop     3524:       } elsif ($l eq 'DAttic') {
3.149     scop     3525:         $comp = -1;
3.144     scop     3526:       } elsif ($r eq 'DAttic') {
3.149     scop     3527:         $comp = 1;
3.144     scop     3528:       }
                   3529:     }
3.120     scop     3530:   }
                   3531:   return $comp;
3.1       knu      3532: }
                   3533:
                   3534: # make A url for downloading
3.120     scop     3535: sub download_url($$;$)
                   3536: {
                   3537:   my ($url, $revision, $mimetype) = @_;
3.1       knu      3538:
3.120     scop     3539:   $revision =~ s/\b0\.//;
3.1       knu      3540:
3.146     scop     3541:   if (defined($checkoutMagic) &&
                   3542:       (!defined($mimetype) || $mimetype !~ $CvsWebMarkupRE))
3.120     scop     3543:   {
                   3544:     my $path = $where;
                   3545:     $path =~ s|[^/]+$||;
                   3546:     $url = "$scriptname/$checkoutMagic/${path}$url";
                   3547:   }
                   3548:   $url .= "?rev=$revision";
                   3549:   $url .= '&content-type=' . urlencode($mimetype) if (defined($mimetype));
3.67      knu      3550:
3.120     scop     3551:   $url;
3.1       knu      3552: }
                   3553:
3.12      knu      3554: # Presents a link to download the
3.1       knu      3555: # selected revision
3.120     scop     3556: sub download_link($$$;$)
                   3557: {
                   3558:   my ($url, $revision, $textlink, $mimetype) = @_;
                   3559:   my ($fullurl) = download_url($url, $revision, $mimetype);
                   3560:
                   3561:   $fullurl =~ s/:/sprintf("%%%02x", ord($&))/eg;
                   3562:
                   3563:   printf '<a href="%s"', hrefquote("$fullurl$barequery");
                   3564:
3.146     scop     3565:   if ($open_extern_window &&
                   3566:       (!defined($mimetype) || $mimetype !~ $CvsWebMarkupRE))
3.120     scop     3567:   {
                   3568:     print ' target="cvs_checkout"';
                   3569:
                   3570:     # we should have
                   3571:     #   'if (document.cvswin==null) document.cvswin=window.open(...'
                   3572:     # in order to allow the user to resize the window; otherwise
                   3573:     # the user may resize the window, but on next checkout - zap -
                   3574:     # its original (configured s. cvsweb.conf) size is back again
                   3575:     # .. annoying (if $extern_window_(width|height) is defined)
                   3576:     # but this if (..) solution is far from perfect
                   3577:     # what we need to do as well is
                   3578:     # 1) save cvswin in an invisible frame that always exists
                   3579:     #    (document.cvswin will be void on next load)
                   3580:     # 2) on close of the cvs_checkout - window set the cvswin
                   3581:     #    variable to 'null' again - so that it will be
                   3582:     #    reopenend with the configured size
                   3583:     # anyone a JavaScript programmer ?
                   3584:     # .. so here without if (..):
                   3585:     # currently, the best way is to comment out the size parameters
                   3586:     # ($extern_window...) in cvsweb.conf.
                   3587:     if ($use_java_script) {
                   3588:       my @attr = qw(resizable scrollbars);
                   3589:
                   3590:       push @attr, qw(status toolbar)
                   3591:         if (defined($mimetype) && $mimetype eq "text/html");
                   3592:
                   3593:       push @attr, "width=$extern_window_width"
                   3594:         if (defined($extern_window_width));
                   3595:
                   3596:       push @attr, "height=$extern_window_height"
                   3597:         if (defined($extern_window_height));
                   3598:
                   3599:       # We need the "return false" here to prevent browsers
                   3600:       # from following the href after the onclick handler.
                   3601:       # This would effectively load the same document in
                   3602:       # the same window *twice*.
                   3603:       printf q` onclick="window.open('%s','cvs_checkout','%s');return false"`,
                   3604:         hrefquote("$fullurl$barequery"), join (',', @attr);
                   3605:     }
                   3606:   }
                   3607:   print "><b>$textlink</b></a>";
3.132     scop     3608: }
                   3609:
                   3610: sub graph_link($$;$)
                   3611: {
                   3612:   my ($url, $revision, $text) = @_;
                   3613:   $text ||= $graphicon;
                   3614:   return sprintf('<a href="%s?graph=%s%s">%s</a>',
                   3615:                  hrefquote($url), hrefquote($revision), hrefquote($barequery),
                   3616:                  $text);
3.1       knu      3617: }
                   3618:
                   3619: # Returns a Query string with the
                   3620: # specified parameter toggled
3.140     scop     3621: sub toggleQuery($;$)
3.120     scop     3622: {
                   3623:   my ($toggle, $value) = @_;
3.133     scop     3624:
                   3625:   my %vars = %input;
3.120     scop     3626:
                   3627:   if (defined($value)) {
                   3628:     $vars{$toggle} = $value;
                   3629:   } else {
                   3630:     $vars{$toggle} = $vars{$toggle} ? 0 : 1;
                   3631:   }
                   3632:
                   3633:   # Build a new query of non-default paramenters
3.133     scop     3634:   my $newquery = "";
                   3635:   foreach my $var (@stickyvars) {
3.120     scop     3636:     my ($value)   = defined($vars{$var})         ? $vars{$var}         : "";
                   3637:     my ($default) = defined($DEFAULTVALUE{$var}) ? $DEFAULTVALUE{$var} : "";
                   3638:
                   3639:     if ($value ne $default) {
                   3640:       $newquery .= "&" if ($newquery ne "");
                   3641:       $newquery .= urlencode($var) . "=" . urlencode($value);
                   3642:     }
                   3643:   }
                   3644:
                   3645:   if ($newquery) {
                   3646:     return '?' . $newquery;
                   3647:   }
                   3648:   return "";
                   3649: }
                   3650:
                   3651: sub urlencode($)
                   3652: {
                   3653:   local ($_) = @_;
                   3654:
                   3655:   s/[\000-+{-\377]/sprintf("%%%02x", ord($&))/ge;
                   3656:
                   3657:   $_;
                   3658: }
                   3659:
                   3660: sub htmlquote($)
                   3661: {
                   3662:   local ($_) = @_;
                   3663:
                   3664:   # Special Characters; RFC 1866
                   3665:   s/&/&amp;/g;
                   3666:   s/\"/&quot;/g;
                   3667:   s/</&lt;/g;
                   3668:   s/>/&gt;/g;
                   3669:
                   3670:   $_;
                   3671: }
                   3672:
                   3673: sub htmlunquote($)
                   3674: {
                   3675:   local ($_) = @_;
                   3676:
                   3677:   # Special Characters; RFC 1866
                   3678:   s/&quot;/\"/g;
                   3679:   s/&lt;/</g;
                   3680:   s/&gt;/>/g;
                   3681:   s/&amp;/&/g;
                   3682:
                   3683:   $_;
                   3684: }
                   3685:
                   3686: sub hrefquote($)
                   3687: {
                   3688:   local ($_) = @_;
                   3689:
                   3690:   y/ /+/;
                   3691:
                   3692:   htmlquote($_);
                   3693: }
                   3694:
                   3695: sub http_header(;$)
                   3696: {
                   3697:   my $content_type = shift || "text/html";
                   3698:
                   3699:   $content_type .= "; charset=$charset"
                   3700:     if $content_type =~ m,^text/, && defined($charset) && $charset;
                   3701:
                   3702:   if (defined($moddate)) {
                   3703:     if ($is_mod_perl) {
                   3704:       Apache->request->header_out(
                   3705:         "Last-Modified" => scalar gmtime($moddate) . " GMT");
                   3706:     } else {
                   3707:       print "Last-Modified: ", scalar gmtime($moddate), " GMT\r\n";
                   3708:     }
                   3709:   }
                   3710:
                   3711:   if ($is_mod_perl) {
                   3712:     Apache->request->content_type($content_type);
                   3713:   } else {
                   3714:     print "Content-Type: $content_type\r\n";
                   3715:   }
                   3716:
                   3717:   if ($allow_compress && $maycompress) {
                   3718:     if ($has_zlib
                   3719:         || (defined($CMD{gzip}) && open(GZIP, "| $CMD{gzip} -1 -c")))
                   3720:     {
                   3721:
                   3722:       if ($is_mod_perl) {
                   3723:         Apache->request->content_encoding("x-gzip");
                   3724:         Apache->request->header_out(Vary => "Accept-Encoding");
                   3725:         Apache->request->send_http_header;
                   3726:       } else {
                   3727:         print "Content-Encoding: x-gzip\r\n";
                   3728:         print "Vary: Accept-Encoding\r\n";    #RFC 2068, 14.43
                   3729:         print "\r\n";                         # Close headers
                   3730:       }
                   3731:       $| = 1;
                   3732:       $| = 0;                                 # Flush header output
                   3733:
                   3734:       if ($has_zlib) {
                   3735:         tie *GZIP, __PACKAGE__, \*STDOUT;
                   3736:       }
                   3737:       select(GZIP);
                   3738:       $gzip_open = 1;
                   3739:
3.149     scop     3740:       #     print "<!-- gzipped -->" if ($content_type =~ m|^text/html\b|);
3.120     scop     3741:     } else {
                   3742:       if ($is_mod_perl) {
                   3743:         Apache->request->send_http_header;
                   3744:       } else {
                   3745:         print "\r\n";    # Close headers
                   3746:       }
                   3747:       print
                   3748:         "<span style=\"font-size: smaller\">Unable to find gzip binary in the <b>\$command_path</b> ($command_path) to compress output</span><br>";
                   3749:     }
                   3750:   } else {
                   3751:
                   3752:     if ($is_mod_perl) {
                   3753:       Apache->request->send_http_header;
                   3754:     } else {
                   3755:       print "\r\n";      # Close headers
                   3756:     }
                   3757:   }
                   3758: }
                   3759:
3.131     scop     3760:
3.120     scop     3761: sub html_header($)
                   3762: {
3.131     scop     3763:   my $title = htmlquote(shift);
3.134     scop     3764:   http_header('text/html');
3.120     scop     3765:   print <<EOH;
3.100     knu      3766: $HTML_DOCTYPE
3.1       knu      3767: <html>
3.40      knu      3768: <head>
3.134     scop     3769: <title>$title</title>
3.144     scop     3770: $HTML_META$CSS</head>
3.129     scop     3771: <body>
3.1       knu      3772: $logo <h1 align="center">$title</h1>
                   3773: EOH
                   3774: }
                   3775:
3.120     scop     3776: sub html_footer()
                   3777: {
3.127     scop     3778:   print "<hr noshade>\n<address>$address</address>\n" if $address;
                   3779:   print "</body>\n</html>\n";
3.1       knu      3780: }
                   3781:
3.120     scop     3782: sub link_tags($)
                   3783: {
                   3784:   my ($tags) = @_;
                   3785:   my ($ret)  = "";
                   3786:   my ($fileurl, $filename);
                   3787:
                   3788:   ($filename = $where) =~ s/^.*\///;
                   3789:   $fileurl = './' . urlencode($filename);
                   3790:
                   3791:   foreach my $sym (split (", ", $tags)) {
                   3792:     $ret .= ",\n" if ($ret ne "");
3.136     scop     3793:     $ret .= &link(htmlquote($sym),
                   3794:                   $fileurl . toggleQuery('only_with_tag', $sym));
3.120     scop     3795:   }
                   3796:   return "$ret\n";
3.1       knu      3797: }
                   3798:
                   3799: #
3.81      knu      3800: # See if a module is listed in the config file's @HideModules list.
3.1       knu      3801: #
3.120     scop     3802: sub forbidden_module($)
                   3803: {
                   3804:   my ($module) = @_;
                   3805:   local $_;
                   3806:
                   3807:   for (@HideModules) {
                   3808:     return 1 if $module =~ $_;
                   3809:   }
                   3810:   return 0;
                   3811: }
                   3812:
                   3813: sub forbidden_file($)
                   3814: {
                   3815:   my ($path) = @_;
                   3816:   $path = substr($path, length($cvsroot) + 1);
                   3817:   local $_;
                   3818:   for (@ForbiddenFiles) {
                   3819:     return 1 if $path =~ $_;
                   3820:   }
                   3821:   return 0;
3.129     scop     3822: }
                   3823:
3.25      knu      3824:
                   3825: # Close the GZIP handle remove the tie.
                   3826:
3.120     scop     3827: sub gzipclose
                   3828: {
                   3829:   if ($gzip_open) {
                   3830:     select(STDOUT);
                   3831:     close(GZIP);
                   3832:     untie *GZIP;
                   3833:     $gzip_open = 0;
                   3834:   }
3.23      knu      3835: }
                   3836:
                   3837: # implement a gzipped file handle via the Compress:Zlib compression
                   3838: # library.
                   3839:
                   3840: sub MAGIC1() { 0x1f }
                   3841: sub MAGIC2() { 0x8b }
3.80      knu      3842: sub OSCODE() { 3 }
3.23      knu      3843:
3.120     scop     3844: sub TIEHANDLE
                   3845: {
                   3846:   my ($class, $out) = @_;
                   3847:   my ($d) = Compress::Zlib::deflateInit(
                   3848:     -Level      => Compress::Zlib::Z_BEST_COMPRESSION(),
                   3849:     -WindowBits => -Compress::Zlib::MAX_WBITS()
                   3850:     )
                   3851:     or return undef;
                   3852:   my ($o) = { handle => $out,
                   3853:               dh     => $d,
                   3854:               crc    => 0,
                   3855:               len    => 0,
                   3856:             };
                   3857:   my ($header) = pack("c10",
                   3858:                       MAGIC1, MAGIC2, Compress::Zlib::Z_DEFLATED(),
                   3859:                       0, 0, 0, 0, 0, 0, OSCODE);
                   3860:   print {$o->{handle}} $header;
                   3861:   return bless($o, $class);
                   3862: }
                   3863:
                   3864: sub PRINT
                   3865: {
                   3866:   my ($o)   = shift;
                   3867:   my ($buf) = join (defined $, ? $, : "", @_);
                   3868:   my ($len) = length($buf);
                   3869:   my ($compressed, $status) = $o->{dh}->deflate($buf);
                   3870:   print {$o->{handle}} $compressed if defined($compressed);
                   3871:   $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   3872:   $o->{len} += $len;
                   3873:   return $len;
                   3874: }
                   3875:
                   3876: sub PRINTF
                   3877: {
                   3878:   my ($o)   = shift;
                   3879:   my ($fmt) = shift;
                   3880:   my ($buf) = sprintf($fmt, @_);
                   3881:   my ($len) = length($buf);
                   3882:   my ($compressed, $status) = $o->{dh}->deflate($buf);
                   3883:   print {$o->{handle}} $compressed if defined($compressed);
                   3884:   $o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
                   3885:   $o->{len} += $len;
                   3886:   return $len;
                   3887: }
                   3888:
                   3889: sub WRITE
                   3890: {
                   3891:   my ($o, $buf, $len, $off) = @_;
                   3892:   my ($compressed, $status) = $o->{dh}->deflate(substr($buf, 0, $len));
                   3893:   print {$o->{handle}} $compressed if defined($compressed);
                   3894:   $o->{crc} = Compress::Zlib::crc32(substr($buf, 0, $len), $o->{crc});
                   3895:   $o->{len} += $len;
                   3896:   return $len;
                   3897: }
                   3898:
                   3899: sub CLOSE
                   3900: {
                   3901:   my ($o) = @_;
                   3902:   return if !defined($o->{dh});
                   3903:   my ($buf) = $o->{dh}->flush();
                   3904:   $buf .= pack("V V", $o->{crc}, $o->{len});
                   3905:   print {$o->{handle}} $buf;
                   3906:   undef $o->{dh};
                   3907: }
                   3908:
                   3909: sub DESTROY
                   3910: {
                   3911:   my ($o) = @_;
                   3912:   CLOSE($o);
1.1       jfieber  3913: }
3.149     scop     3914:
                   3915: # Local variables:
                   3916: # indent-tabs-mode: nil
                   3917: # cperl-indent-level: 2
                   3918: # End:

CVSweb