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Revision:: 39

Log:: Initial import of CVSWeb 3.0.6 from http://people.freebsd.org/~scop/cvsweb/
into SVN. CVSWeb will be used as a Web interface onto the main repository,
since that is too large and too complex to convert from its current SVN
form into SVN.

Author:: adh

Date:: Mon Jul 31 15:11:40 +0100 2006

Size:: 126583 Bytes

Show revision log

1	#!/usr/bin/perl -T
2	#
3	# cvsweb - a CGI interface to CVS trees.
4	#
5	# Written in their spare time by
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 Skytt� <scop@FreeBSD.org>
14	# Vassilii Khachaturov <vassilii@tarunz.org>
15	#
16	# Based on:
17	# * Bill Fenners cvsweb.cgi revision 1.28 available from:
18	# http://www.FreeBSD.org/cgi/cvsweb.cgi/www/en/cgi/cvsweb.cgi
19	#
20	# Copyright (c) 1996-1998 Bill Fenner
21	# (c) 1998-1999 Henner Zeller
22	# (c) 1999 Henrik Nordstrom
23	# (c) 2000-2002 Akinori MUSHA
24	# (c) 2002-2005 Ville Skytt�
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	#
48	# $FreeBSD: projects/cvsweb/cvsweb.cgi,v 1.295 2005/09/25 20:28:51 scop Exp $
49	# $Id: cvsweb.cgi,v 1.112 2001/07/24 13:03:16 hzeller Exp $
50	# $Idaemons: /home/cvs/cvsweb/cvsweb.cgi,v 1.84 2001/10/07 20:50:10 knu Exp $
51	#
52	###
53
54	require 5.006;
55
56	use strict;
57
58	use warnings;
59	use filetest qw(access);
60
61	use vars qw (
62	$VERSION $CheckoutMagic $MimeTypes $DEBUG
63	$config $allow_version_select
64	@CVSrepositories @CVSROOT %CVSROOT %CVSROOTdescr
65	%MIRRORS %DEFAULTVALUE %ICONS %MTYPES
66	%DIFF_COMMANDS @DIFFTYPES %DIFFTYPES @LOGSORTKEYS %LOGSORTKEYS
67	%alltags %fileinfo %tags @branchnames %nameprinted
68	%symrev %revsym @allrevisions %date %author @revdisplayorder
69	@revisions %state %difflines %log %branchpoint @revorder $keywordsubstitution
70	$prcgi @prcategories $re_prcategories $prkeyword $re_prkeyword $mancgi
71	$doCheckout $scriptname $scriptwhere
72	$where $Browser $nofilelinks $maycompress @stickyvars %funcline_regexp
73	$is_links $is_lynx $is_w3m $is_msie $is_mozilla3 $is_textbased
74	%input $query $barequery $sortby $bydate $byrev $byauthor
75	$bylog $byfile $defaultDiffType $logsort $cvstree $cvsroot
76	$charset $output_filter
77	@command_path %CMD $allow_compress $backicon $diricon $fileicon $graphicon
78	$fullname $cvstreedefault $logo $defaulttitle $address $binfileicon
79	$long_intro $short_instruction $shortLogLen $show_author
80	$tablepadding $hr_breakable $showfunc $hr_ignwhite $hr_ignkeysubst
81	$inputTextSize $mime_types $allow_annotate $allow_markup $allow_mailtos
82	$allow_log_extra $allow_dir_extra $allow_source_extra
83	$allow_cvsgraph $cvsgraph_config $use_java_script $edit_option_form
84	$show_subdir_lastmod $show_log_in_markup $preformat_in_markup
85	$tabstop $state $annTable $sel @ForbiddenFiles
86	$use_descriptions %descriptions @mytz $dwhere
87	$use_moddate $gzip_open $file_list_len
88	$allow_tar @tar_options @gzip_options @zip_options @cvs_options
89	@annotate_options @rcsdiff_options
90	$HTML_DOCTYPE $HTML_META $cssurl $CSS $cvshistory_url
91	$allow_enscript @enscript_options %enscript_types
92	);
93
94	use Cwd qw(abs_path);
95	use File::Basename qw(dirname);
96	use File::Path qw(rmtree);
97	use File::Spec::Functions qw(canonpath catdir catfile curdir devnull rootdir
98	tmpdir updir);
99	use File::Temp qw(tempdir tempfile);
100	use IPC::Run qw();
101	use Time::Local qw(timegm);
102	use URI::Escape qw(uri_escape uri_unescape);
103
104	use constant VALID_PATH => qr/^([[:^cntrl:]]+)$/o;
105	use constant VALID_TAG1 => qr/^([a-zA-Z][[:graph:]]*)$/o;
106	use constant VALID_TAG2 => qr/^([^\$,.:;@]+)$/o;
107	use constant CVSWEBMARKUP => qr{^text/(x-cvsweb\|vnd\.viewcvs)-markup$}io;
108	use constant LOG_FILESEPR => qr/^={77}$/o;
109	use constant LOG_REVSEPR => qr/^-{28}$/o;
110
111	use constant HAS_ZLIB => eval { require Compress::Zlib; };
112	use constant HAS_EDIFF => eval { require String::Ediff; };
113
114	# -----------------------------------------------------------------------------
115
116	# All global initialization that can be done in compile time should go to
117	# the BEGIN block. Persistent environments, such as mod_perl, will benefit
118	# from this.
119
120	BEGIN
121	{
122	$VERSION = '3.0.6';
123
124	$HTML_DOCTYPE =
125	'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ' .
126	'"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">';
127
128	$HTML_META = <<EOM;
129	<meta name="robots" content="nofollow" />
130	<meta name="generator" content="FreeBSD-CVSweb $VERSION" />
131	<meta http-equiv="Content-Script-Type" content="text/javascript" />
132	<meta http-equiv="Content-Style-Type" content="text/css" />
133	EOM
134
135	# Use MIME::Types for MIME type lookups if it's available.
136	eval {
137	require MIME::Types;
138	$MimeTypes = MIME::Types->new(only_complete => 1);
139	};
140	$MimeTypes = undef if $@;
141
142	$CheckoutMagic = '~checkout~';
143	}
144
145	# -----------------------------------------------------------------------------
146
147	sub printDiffSelect($);
148	sub printDiffSelectStickyVars();
149	sub getDiffLinks($$$);
150	sub printLogSortSelect($);
151	sub findLastModifiedSubdirs(@);
152	sub htmlify_sub(&$);
153	sub htmlify($;$);
154	sub spacedHtmlText($;$);
155	sub link($$);
156	sub revcmp($$);
157	sub fatal($$@);
158	sub config_error($$);
159	sub redirect($;$);
160	sub safeglob($);
161	sub search_path($);
162	sub getEnscriptHL($);
163	sub getMimeType($;$);
164	sub head($;$);
165	sub scan_directives(@);
166	sub openOutputFilter();
167	sub doAnnotate($$);
168	sub doCheckout($$$);
169	sub doEnscript($$$;$);
170	sub doGraph();
171	sub doGraphView();
172	sub cvswebMarkup($$$$$$;$);
173	sub viewable($);
174	sub doDiff($$$$$$);
175	sub getDirLogs($$@);
176	sub readLog($;$);
177	sub printLog($$$;$$);
178	sub doLog($);
179	sub flush_diff_rows($$$$);
180	sub human_readable_diff($$);
181	sub navigateHeader($$$$$;$);
182	sub plural_write($$);
183	sub readableTime($$);
184	sub clickablePath($$);
185	sub chooseCVSRoot();
186	sub chooseMirror();
187	sub fileSortCmp();
188	sub download_url($$;$);
189	sub download_link($$$;$);
190	sub display_url($$;$);
191	sub display_link($$;$$);
192	sub graph_link($;$);
193	sub history_link($$;$);
194	sub toggleQuery($;$);
195	sub htmlquote($);
196	sub htmlunquote($);
197	sub uri_escape_path($);
198	sub http_header(;$$);
199	sub html_header($;$);
200	sub html_footer();
201	sub link_tags($);
202	sub forbidden($);
203	sub startproc(@);
204	sub runproc(@);
205	sub checkout_to_temp($$$);
206
207	# Get rid of unsafe environment vars. Don't do this in the BEGIN block
208	# (think mod_perl)...
209	delete(@ENV{qw(PATH IFS CDPATH ENV BASH_ENV)});
210
211	my ($mydir) = (dirname($0) =~ /(.*)/); # untaint
212
213	##### Start of Configuration Area ########
214
215	# == EDIT this ==
216	# Locations to search for user configuration, in order:
217	for (catfile($mydir, 'cvsweb.conf'), '/usr/local/etc/cvsweb/cvsweb.conf') {
218	if (-r $_) {
219	$config = $_;
220	last;
221	}
222	}
223
224	##### End of Configuration Area ########
225
226	undef $mydir;
227
228	######## Configuration parameters #########
229
230	@CVSrepositories = @CVSROOT = %CVSROOT = %MIRRORS = %DEFAULTVALUE = %ICONS =
231	%MTYPES = %tags = %alltags = %fileinfo = %DIFF_COMMANDS = ();
232
233	$cvstreedefault = $logo = $defaulttitle =
234	$address = $long_intro = $short_instruction = $shortLogLen = $show_author =
235	$tablepadding = $hr_breakable = $showfunc = $hr_ignwhite =
236	$hr_ignkeysubst = $inputTextSize = $mime_types = $allow_annotate =
237	$allow_markup = $allow_compress = $use_java_script = $edit_option_form =
238	$show_subdir_lastmod = $show_log_in_markup = $preformat_in_markup =
239	$tabstop = $use_moddate = $gzip_open = $DEBUG = $allow_cvsgraph =
240	$cvsgraph_config = $cvshistory_url = $allow_tar = undef;
241
242	$allow_version_select = $allow_mailtos = $allow_log_extra = 1;
243
244	@DIFFTYPES = qw(h H u c s);
245	@DIFFTYPES{@DIFFTYPES} = (
246	{
247	'descr' => 'colored',
248	'opts' => ['-u'],
249	'colored' => 1,
250	},
251	{
252	'descr' => 'long colored',
253	'opts' => ['--unified=15'],
254	'colored' => 1,
255	},
256	{
257	'descr' => 'unified',
258	'opts' => ['-u'],
259	'colored' => 0,
260	},
261	{
262	'descr' => 'context',
263	'opts' => ['-c'],
264	'colored' => 0,
265	},
266	{
267	'descr' => 'side by side',
268	# width=168 should be enough to support 80 character line lengths
269	'opts' => ['--side-by-side', '--width=168'],
270	'colored' => 0,
271	},
272	);
273
274	@LOGSORTKEYS = qw(cvs date rev);
275	@LOGSORTKEYS{@LOGSORTKEYS} = (
276	{ descr => 'Not sorted', },
277	{ descr => 'Commit date', },
278	{ descr => 'Revision', },
279	);
280
281	##### End of configuration parameters #####
282
283	my $pathinfo = '';
284	if (defined($ENV{PATH_INFO}) && $ENV{PATH_INFO} ne '') {
285	($pathinfo) = ($ENV{PATH_INFO} =~ VALID_PATH)
286	or fatal('500 Internal Error',
287	'Illegal PATH_INFO in environment: <code>%s</code>',
288	$ENV{PATH_INFO});
289	}
290	if ($ENV{SCRIPT_NAME}) {
291	($scriptname) = ($ENV{SCRIPT_NAME} =~ VALID_PATH)
292	or fatal('500 Internal Error',
293	'Illegal SCRIPT_NAME in environment: <code>%s</code>',
294	$ENV{SCRIPT_NAME});
295	}
296
297	$scriptname = '' unless defined($scriptname);
298
299	$where = $pathinfo;
300	$doCheckout = $where =~ s\|^/$CheckoutMagic/\|/\|o;
301	$where =~ s\|^/\|\|;
302	$scriptname =~ s\|^/*\|/\|;
303
304	# Let's workaround thttpd's stupidity..
305	if ($scriptname =~ m\|/$\|) {
306	$pathinfo .= '/';
307	my $re = quotemeta $pathinfo;
308	$scriptname =~ s/$re$//;
309	}
310
311	# $scriptname : the URI escaped path to this script
312	# $where : the path in the CVS repository (without leading /, or only /)
313	# $scriptwhere: the URI escaped $scriptname + '/' + $where
314	$scriptname = uri_escape_path($scriptname);
315	$scriptwhere = join('/', $scriptname, uri_escape_path($where));
316	$where = '/' if ($where eq '');
317
318	# In text-based browsers, it's very annoying to have two links per file;
319	# skip linking the image for them.
320
321	$Browser = $ENV{HTTP_USER_AGENT} \|\| '';
322	$is_links = ($Browser =~ m`^E?Links `);
323	$is_lynx = ($Browser =~ m`^Lynx/`i);
324	$is_w3m = ($Browser =~ m`^w3m/`i);
325	$is_msie = ($Browser =~ m`MSIE`);
326	$is_mozilla3 = ($Browser =~ m`^Mozilla/[3-9]`);
327
328	$is_textbased = ($is_links \|\| $is_lynx \|\| $is_w3m);
329
330	$nofilelinks = $is_textbased;
331
332	# newer browsers accept gzip content encoding
333	# and state this in a header
334	# (netscape did always but didn't state it)
335	# It has been reported that these
336	# braindamaged MS-Internet Exploders claim that they
337	# accept gzip .. but don't in fact and
338	# display garbage then :-/
339	# Turn off gzip if running under mod_perl and no zlib is available,
340	# piping does not work as expected inside the server.
341	$maycompress = (
342	((defined($ENV{HTTP_ACCEPT_ENCODING})
343	&& $ENV{HTTP_ACCEPT_ENCODING} =~ /gzip/)
344	\|\| $is_mozilla3)
345	&& !$is_msie
346	&& !(defined($ENV{MOD_PERL}) && !HAS_ZLIB)
347	);
348
349	# Parameters that will be sticky in all constructed links/query strings.
350	@stickyvars =
351	qw(cvsroot hideattic ignorecase sortby logsort f only_with_tag ln
352	hidecvsroot hidenonreadable);
353
354	#
355	# Load configuration.
356	#
357	if (-f $config) {
358	do "$config" or config_error($config, $@);
359	} else {
360	fatal("500 Internal Error",
361	'Configuration not found. Set the parameter <code>$config</code> in cvsweb.cgi to your <b>cvsweb.conf</b> configuration file first.');
362	}
363
364	# Try to find a readable dir where we can cd into. Some abs_path()
365	# implementations as well as various cvs operations require such a dir to
366	# work properly.
367	{
368	local $^W = 0;
369	for my $dir (tmpdir(), rootdir()) {
370	last if (-r $dir && chdir($dir));
371	}
372	}
373
374	$CSS = $cssurl ?
375	sprintf("<link rel=\"stylesheet\" type=\"text/css\" href=\"%s\" />\n",
376	htmlquote($cssurl)) : '';
377
378	# --- input parameters
379
380	my %query = ();
381	if (defined($ENV{QUERY_STRING})) {
382	for my $p (split(/[;&]+/, $ENV{QUERY_STRING})) {
383	next unless $p;
384	$p =~ y/+/ /;
385	my ($key, $val) = split(/=/, $p, 2);
386	next unless defined($key);
387	$val = 1 unless defined($val);
388	($key = uri_unescape($key)) =~ /[[:graph:]]/ or next;
389	($val = uri_unescape($val)) =~ /[[:graph:]]/ or next;
390	$query{$key} = $val;
391	}
392	}
393
394	undef %input;
395
396	my $t;
397	for my $p (qw(graph hideattic hidecvsroot hidenonreadable ignorecase ln copt
398	makeimage options tarball)) {
399	$t = $query{$p};
400	if (defined($t)) {
401	($input{$p}) = ($t =~ /^([01]\|on)$/)
402	or fatal('500 Internal Error',
403	'Invalid boolean value: <code>%s=%s</code>', $p, $t);
404	}
405	}
406	for my $p (qw(annotate r1 r2 rev tr1 tr2)) {
407	$t = $query{$p};
408	if (defined($t)) {
409	if (($p eq 'r1' \|\| $p eq 'r2') && $t eq 'text') {
410	# Special case for the "Use text field" option in the log view diff form.
411	$input{$p} = $t;
412	next;
413	} elsif (($p eq 'rev' \|\| $p eq 'annotate') && ($t eq '.' \|\| $t eq 'HEAD')){
414	# Another special case, allow linking to latest revision using these.
415	$input{$p} = '.';
416	next;
417	}
418	my ($rev, $tag) = split(/:/, $t, 2);
419	($input{$p}) = ($rev =~ /^(\d+(?:\.\d+)*)$/)
420	or fatal('500 Internal Error',
421	'Invalid revision: <code>%s=%s</code>', $p, $t);
422	if (defined($tag)) {
423	($tag) = ($tag =~ VALID_TAG1)
424	or fatal('500 Internal Error',
425	'Invalid tag/branch name in revision: <code>%s=%s</code>',
426	$p, $t);
427	($tag) = ($tag =~ VALID_TAG2)
428	or fatal('500 Internal Error',
429	'Invalid tag/branch name in revision: <code>%s=%s</code>',
430	$p, $t);
431	$input{$p} .= ':' . $tag;
432	}
433	}
434	}
435	$t = defined($query{only_with_tag}) ?
436	$query{only_with_tag} : $query{only_on_branch}; # Backwards compatibility.
437	if (defined($t)) {
438	($input{only_with_tag}) = ($t =~ VALID_TAG1)
439	or fatal('500 Internal Error',
440	'Invalid tag/branch name: <code>%s</code>', $t);
441	($input{only_with_tag}) = ($t =~ VALID_TAG2)
442	or fatal('500 Internal Error',
443	'Invalid tag/branch name: <code>%s</code>', $t);
444	}
445	$t = $query{logsort};
446	if (defined($t)) {
447	($input{logsort}) = ($t =~ /^(cvs\|date\|rev)$/)
448	or fatal('500 Internal Error',
449	'Unsupported log sort key: <code>%s</code>', $t);
450	}
451	$t = $query{f};
452	if (defined($t)) {
453	($input{f}) = ($t =~ /^(([hH]\|[ucs]c?)\|ext\d*)$/)
454	or fatal('500 Internal Error',
455	'Unsupported diff format: <code>%s</code>', $t);
456	}
457	$t = $query{sortby};
458	if (defined($t)) {
459	($input{sortby}) = ($t =~ /^(file\|date\|rev\|author\|log)$/)
460	or fatal('500 Internal Error',
461	'Unsupported dir sort key: <code>%s</code>', $t);
462	}
463	$t = $query{'content-type'};
464	if (defined($t)) {
465	($input{'content-type'}) = ($t =~ m\|^([-0-9A-Za-z]+/[-0-9A-Za-z\.\+]+)$\|)
466	or fatal('500 Internal Error',
467	'Unsupported content type: <code>%s</code>', $t);
468	}
469	$t = $query{cvsroot};
470	if (defined($t)) {
471	($input{cvsroot}) = ($t =~ /^([[:print:]]+)$/)
472	or fatal('500 Internal Error',
473	'Invalid symbolic CVS root name: <code>%s</code>', $t);
474	}
475	$t = $query{path};
476	if (defined($t)) {
477	($input{path}) = ($t =~ VALID_PATH)
478	or fatal('500 Internal Error',
479	'Invalid path: <code>%s</code>', $t);
480	}
481	undef($t);
482	undef(%query);
483
484	# --- end input parameters
485
486	#
487	# CVS roots
488	#
489	my $rootfound = 0;
490	for (my $i = 0; $i < scalar(@CVSrepositories); $i += 2) {
491	my $key = $CVSrepositories[$i];
492	my ($descr, $root) = @{$CVSrepositories[$i+1]};
493	$root = canonpath($root);
494	unless (-d $root) {
495	warn("Root '$root' defined in \@CVSrepositories is not a directory, " .
496	'entry ignored');
497	next;
498	}
499	$rootfound \|\|= 1;
500	$cvstreedefault = $key unless defined($cvstreedefault);
501	$CVSROOTdescr{$key} = $descr;
502	$CVSROOT{$key} = $root;
503	push(@CVSROOT, $key);
504	}
505	unless ($rootfound) {
506	fatal('500 Internal Error',
507	'No valid CVS roots found! See <code>@CVSrepositories</code> in ' .
508	'the configuration file (<code>%s</code>).',
509	$config);
510	}
511	undef $rootfound;
512
513	#
514	# Default CVS root
515	#
516	if (!defined($CVSROOT{$cvstreedefault})) {
517	fatal("500 Internal Error",
518	'<code>$cvstreedefault</code> points to a repository (%s) not ' .
519	'defined in <code>@CVSrepositories</code> in your configuration ' .
520	'file (<code>%s</code>).',
521	$cvstreedefault,
522	$config);
523	}
524
525	$DEFAULTVALUE{cvsroot} = $cvstreedefault;
526
527	while (my ($key, $defval) = each %DEFAULTVALUE) {
528
529	# Replace not given parameters with defaults.
530	next unless (defined($defval) && $defval =~ /\S/ && !defined($input{$key}));
531
532	# Empty checkboxes in forms return nothing, so we define a helper parameter
533	# in these forms (copt) which indicates that we just set parameters with a
534	# checkbox.
535	if ($input{copt}) {
536
537	# 'copt' is set -> the result of empty input checkbox
538	# -> set to zero (disable) if default is a boolean (0\|1).
539	$input{$key} = 0 if ($defval eq '0' \|\| $defval eq '1');
540
541	} else {
542
543	# 'copt' isn't set --> empty input is not the result
544	# of empty input checkbox --> set default.
545	$input{$key} = $defval;
546	}
547	}
548
549	$barequery = "";
550	my @barequery;
551	foreach (@stickyvars) {
552
553	# construct a query string with the sticky non default parameters set
554	if (defined($input{$_})
555	&& !(defined($DEFAULTVALUE{$_}) && $input{$_} eq $DEFAULTVALUE{$_}))
556	{
557	push(@barequery, join('=', uri_escape($_), uri_escape($input{$_})));
558	}
559	}
560
561	if ($allow_enscript) {
562	push(@DIFFTYPES, qw(uc cc sc));
563	@DIFFTYPES{qw(uc cc sc)} = (
564	{
565	'descr' => 'unified, colored',
566	'opts' => ['-u'],
567	'colored' => 0,
568	},
569	{
570	'descr' => 'context, colored',
571	'opts' => ['-c'],
572	'colored' => 0,
573	},
574	{
575	'descr' => 'side by side, colored',
576	# width=168 should be enough to support 80 character line lengths
577	'opts' => ['--side-by-side', '--width=168'],
578	'colored' => 0,
579	},
580	);
581	} else {
582	# No Enscript -> respect difftype, but don't offer colorization.
583	if ($input{f} && $input{f} =~ /^([ucs])c$/) {
584	$input{f} = $1;
585	}
586	}
587
588	# is there any query ?
589	if (@barequery) {
590	$barequery = join (';', @barequery);
591	$query = "?$barequery";
592	$barequery = ";$barequery";
593	} else {
594	$query = "";
595	}
596	undef @barequery;
597
598	if (defined($input{path})) {
599	redirect("$scriptname/$input{path}$query");
600	}
601
602	# get actual parameters
603	{
604	my $sortby = $input{sortby} \|\| 'file';
605	$bydate = 0;
606	$byrev = 0;
607	$byauthor = 0;
608	$bylog = 0;
609	$byfile = 0;
610	if ($sortby eq 'date') {
611	$bydate = 1;
612	} elsif ($sortby eq 'rev') {
613	$byrev = 1;
614	} elsif ($sortby eq 'author') {
615	$byauthor = 1;
616	} elsif ($sortby eq 'log') {
617	$bylog = 1;
618	} else {
619	$byfile = 1;
620	}
621	}
622
623	$defaultDiffType = $input{f};
624
625	$logsort = $input{logsort};
626
627	# alternate CVS-Tree, configured in cvsweb.conf
628	if ($input{cvsroot} && $CVSROOT{$input{cvsroot}}) {
629	$cvstree = $input{cvsroot};
630	} else {
631	$cvstree = $cvstreedefault;
632	}
633
634	$cvsroot = $CVSROOT{$cvstree};
635
636	# create icons out of description
637	foreach my $k (keys %ICONS) {
638	my ($itxt, $ipath, $iwidth, $iheight) = @{$ICONS{$k}};
639	no strict 'refs';
640	if ($ipath) {
641	${"${k}icon"} =
642	sprintf('<img src="%s" alt="%s" border="0" width="%d" height="%d" />',
643	htmlquote($ipath), htmlquote($itxt), $iwidth, $iheight);
644	} else {
645	${"${k}icon"} = $itxt;
646	}
647	}
648
649	my $config_cvstree = "$config-$cvstree";
650
651	# Do some special configuration for cvstrees
652	if (-f $config_cvstree) {
653	do "$config_cvstree"
654	or fatal("500 Internal Error",
655	'Error in loading configuration file: %s<br /><br />%s<br />',
656	$config_cvstree, $@);
657	}
658	undef $config_cvstree;
659
660	$re_prcategories = '(?:' . join ('\|', @prcategories) . ')' if @prcategories;
661	$re_prkeyword = quotemeta($prkeyword) if defined($prkeyword);
662	$prcgi .= '%s' if defined($prcgi) && $prcgi !~ /%s/;
663
664	$fullname = catfile($cvsroot, $where);
665
666	my $rewrite = 0;
667	if ($pathinfo =~ m\|//\|) {
668	$pathinfo =~ y\|/\|/\|s;
669	$rewrite = 1;
670	}
671	if (-d $fullname) {
672	if ($pathinfo !~ m\|/$\|) {
673	$pathinfo .= '/';
674	$rewrite = 1;
675	}
676	} elsif ($pathinfo =~ m\|/$\|) {
677	chop $pathinfo;
678	$rewrite = 1;
679	}
680	if ($rewrite) {
681	redirect($scriptname . uri_escape_path($pathinfo) . $query, 1);
682	}
683	undef $rewrite;
684
685	undef $pathinfo;
686
687	if (!-d $cvsroot) {
688	fatal("500 Internal Error",
689	'$CVSROOT not found!<p>The server on which the CVS tree lives is probably down. Please try again in a few minutes.');
690	}
691
692	#
693	# Short-circuit forbidden things. Note that $fullname should not change
694	# after this, because the rest of the code assumes this check has already
695	# been done.
696	#
697	fatal('403 Forbidden', 'Access to %s forbidden.', $where)
698	if forbidden($fullname);
699
700	#
701	# Handle tarball downloads before any headers are output.
702	#
703	if ($input{tarball}) {
704	fatal('403 Forbidden', 'Downloading tarballs is prohibited.')
705	unless $allow_tar;
706
707	my ($module) = ($where =~ m,^/?(.*),); # untaint
708	$module =~ s,/([^/]*)$,,;
709	my ($ext) = ($1 =~ /(\.t(?:ar\.)?gz\|\.zip)$/);
710	my ($basedir) = ($module =~ m,([^/]+)$,);
711
712	if ($basedir eq '' \|\| $module eq '') {
713	fatal('500 Internal Error',
714	'You cannot download the top level directory.');
715	}
716
717	my $istar = ($ext eq '.tar.gz' \|\| $ext eq '.tgz');
718	if ($istar) {
719	fatal('500 Internal Error', 'tar command not found.') unless $CMD{tar};
720	fatal('500 Internal Error', 'gzip command not found.') unless $CMD{gzip};
721	}
722	my $iszip = ($ext eq '.zip');
723	if ($iszip && !$CMD{zip}) {
724	fatal('500 Internal Error', 'zip command not found.');
725	}
726	if (!$istar && !$iszip) {
727	fatal('500 Internal Error', 'Unsupported archive type.');
728	}
729
730	my $tmpexportdir;
731	eval {
732	local $SIG{__DIE__};
733	# Don't use the CLEANUP argument to tempdir() here, since we might be under
734	# mod_perl (the process runs for a long time), unlink explicitly later.
735	$tmpexportdir = tempdir('.cvsweb.XXXXXXXX', TMPDIR => 1);
736	};
737	if ($@) {
738	fatal('500 Internal Error', 'Unable to make temporary directory: %s', $@);
739	}
740	if (!chdir($tmpexportdir)) {
741	fatal('500 Internal Error',
742	"Can't cd to temporary directory %s: %s", $tmpexportdir, $!);
743	}
744
745	my @fatal;
746	my $tag = $input{only_with_tag} \|\| 'HEAD';
747	$tag = 'HEAD' if ($tag eq 'MAIN');
748
749	my @cmd =
750	($CMD{cvs}, @cvs_options, '-Qd', $cvsroot, 'export', '-r', $tag,
751	'-d', $basedir, $module);
752	my $export_err;
753	my ($errcode, $err) = runproc(\@cmd, '2>', \$export_err);
754	if ($errcode) {
755	@fatal =
756	('500 Internal Error',
757	'Export failure (exit status %s), output: <pre>%s</pre>',
758	$errcode, $err \|\| $export_err);
759
760	} else {
761
762	$\| = 1; # Essential to get the buffering right.
763	local (*TAR_OUT);
764
765	my (@cmd, $ctype);
766	if ($istar) {
767	my @tar = ($CMD{tar}, @tar_options, '-cf', '-', $basedir);
768	my @gzip = ($CMD{gzip}, @gzip_options, '-c');
769	push(@cmd, \@tar, '\|', \@gzip);
770	$ctype = 'application/x-gzip';
771	} elsif ($iszip) {
772	my @zip = ($CMD{zip}, @zip_options, '-r', '-', $basedir);
773	push(@cmd, \@zip, \'');
774	$ctype = 'application/zip';
775	}
776	push(@cmd, '>pipe', \*TAR_OUT);
777
778	my ($h, $err) = startproc(@cmd);
779	if ($h) {
780	print "Content-Type: $ctype\r\n\r\n";
781	local $/ = undef;
782	print <TAR_OUT>;
783	$h->finish();
784	} else {
785	@fatal = ('500 Internal Error',
786	'%s failure (exit status %s), output: <pre>%s</pre>',
787	$istar ? 'Tar' : 'Zip', $? >> 8 \|\| -1, $err);
788	}
789	}
790
791	# Clean up.
792	rmtree($tmpexportdir);
793
794	&fatal(@fatal) if @fatal;
795
796	exit;
797	}
798
799	##############################
800	# View a directory
801	###############################
802	if (-d $fullname) {
803
804	my $dh = do { local (*DH); };
805	opendir($dh, $fullname) or fatal("404 Not Found", '%s: %s', $where, $!);
806	my @dir = grep(!forbidden(catfile($fullname, $_)), readdir($dh));
807	closedir($dh);
808	my @subLevelFiles = findLastModifiedSubdirs(@dir) if $show_subdir_lastmod;
809	my @unreadable = getDirLogs($cvsroot, $where, @subLevelFiles);
810
811	if ($where eq '/') {
812	html_header($defaulttitle);
813	$long_intro =~ s/!!CVSROOTdescr!!/$CVSROOTdescr{$cvstree}/g;
814	print $long_intro;
815	} else {
816	html_header($where);
817	my $html = (-f catfile($fullname, 'README.cvs.html,v') \|\|
818	-f catfile($fullname, 'Attic', 'README.cvs.html,v'));
819	my $text = (!$html &&
820	(-f catfile($fullname, 'README.cvs,v') \|\|
821	-f catfile($fullname, 'Attic', 'README.cvs,v')));
822	if ($html \|\| $text) {
823	my $rev = $input{only_with_tag} \|\| 'HEAD';
824	my $cr = abs_path($cvsroot) \|\| $cvsroot;
825	my $co = "$where/README.cvs.html" if $html;
826	$co \|\|= "$where/README.cvs" if $text;
827	# abs_path() taints when run as a CGI...
828	if ($cr =~ VALID_PATH) {
829	$cr = $1;
830	} else {
831	fatal('500 Internal Error', 'Illegal CVS root: <code>%s</code>', $cr);
832	}
833	my @cmd = ($CMD{cvs}, @cvs_options, '-d', $cr, 'co', '-p', "-r$rev",$co);
834	local (CVS_OUT, CVS_ERR);
835	my ($h, $err) = startproc(\@cmd, \"", '>pipe', \*CVS_OUT,
836	'2>pipe', \*CVS_ERR);
837	fatal('500 Internal Error', $err) unless $h;
838	if ($html) {
839	local $/ = undef;
840	print <CVS_OUT>;
841	} else {
842	print "<p>\n";
843	while (<CVS_OUT>) {
844	chomp;
845	print htmlquote($_), '<br />';
846	}
847	print "</p>";
848	}
849	$h->finish();
850	}
851	print $short_instruction;
852	}
853
854	if ($use_descriptions &&
855	open(DESC, catfile($cvsroot, 'CVSROOT', 'descriptions'))) {
856	while (<DESC>) {
857	chomp;
858	my ($dir, $description) = /(\S+)\s+(.*)/;
859	$descriptions{$dir} = $description;
860	}
861	close(DESC);
862	}
863
864	print "<p><a name=\"dirlist\"></a></p>\n";
865
866	# give direct access to dirs
867	if ($where eq '/') {
868	chooseMirror();
869	chooseCVSRoot();
870
871	} else {
872	print '<p>Current directory: <b>', clickablePath($where, 0), '</b>';
873	if ($cvshistory_url) {
874	(my $d = $where) =~ s\|^/(.?)/*$\|$1\|;
875	print ' - ', history_link($d, '');
876	}
877	print "</p>\n";
878	print "<p>Current tag: <b>", htmlquote($input{only_with_tag}), "</b></p>\n"
879	if $input{only_with_tag};
880	}
881
882	print "<hr />\n";
883
884	my $infocols = 1;
885
886	printf(<<EOF, 'Directory index of ' . htmlquote($where));
887	<table class="dir" width="100%%" cellspacing="0" cellpadding="$tablepadding" summary="%s">
888	<tr>
889	EOF
890	printf('<th colspan="2"%s>', ($byfile ? ' class="sorted"' : ''));
891
892	if ($byfile) {
893	print 'File';
894	} else {
895	print &link('File',
896	sprintf('./%s#dirlist', toggleQuery('sortby', 'file')));
897	}
898	print "</th>\n";
899
900	# Do not display the other column headers if we do not have any files
901	# with revision information.
902	if (scalar(%fileinfo)) {
903	$infocols++;
904	printf('<th%s>', ($byrev ? ' class="sorted"' : ''));
905
906	if ($byrev) {
907	print 'Rev.';
908	} else {
909	print &link('Rev.',
910	sprintf('./%s#dirlist', toggleQuery('sortby', 'rev')));
911	}
912	print "</th>\n";
913	$infocols++;
914	printf('<th%s>', ($bydate ? ' class="sorted"' : ''));
915
916	if ($bydate) {
917	print 'Age';
918	} else {
919	print &link('Age',
920	sprintf('./%s#dirlist', toggleQuery('sortby', 'date')));
921	}
922	print "</th>\n";
923
924	if ($show_author) {
925	$infocols++;
926	printf('<th%s>', ($byauthor ? ' class="sorted"' : ''));
927
928	if ($byauthor) {
929	print 'Author';
930	} else {
931	print
932	&link('Author',
933	sprintf('./%s#dirlist', toggleQuery('sortby', 'author')));
934	}
935	print "</th>\n";
936	}
937	$infocols++;
938	printf('<th%s>', ($bylog ? ' class="sorted"' : ''));
939
940	if ($bylog) {
941	print 'Last log entry';
942	} else {
943	print &link('Last log entry',
944	sprintf('./%s#dirlist', toggleQuery('sortby', 'log')));
945	}
946	print "</th>\n";
947	} elsif ($use_descriptions) {
948	print "<th>Description</th>\n";
949	$infocols++;
950	}
951	print "</tr>\n";
952
953	my $dirrow = 0;
954
955	my $i;
956	lookingforattic:
957	for ($i = 0; $i <= $#dir; $i++) {
958	if ($dir[$i] eq "Attic") {
959	last lookingforattic;
960	}
961	}
962
963	if (!$input{hideattic}
964	&& ($i <= $#dir)
965	&& opendir($dh, $fullname . '/Attic'))
966	{
967	splice(@dir, $i, 1, grep((s\|^\|Attic/\|, !m\|/\.\|), readdir($dh)));
968	closedir($dh);
969	}
970
971	my $hideAtticToggleLink =
972	$input{hideattic}
973	? ''
974	: &link('[hide]', sprintf('./%s#dirlist', &toggleQuery('hideattic')));
975
976	# Sort without the Attic/ pathname.
977	# place directories first
978
979	my $filesexists;
980	my $filesfound;
981
982	foreach my $file (sort { &fileSortCmp } @dir) {
983
984	next if ($file eq curdir());
985
986	# ignore CVS lock and stale NFS files
987	next if ($file =~ /^\#cvs\.\|^,\|^\.nfs/); # \# for XEmacs cperl-mode...
988
989	# Check whether to show the CVSROOT path
990	next if ($input{hidecvsroot} && $where eq '/' && $file eq 'CVSROOT');
991
992	# Is it a directory?
993	my $isdir = -d catdir($fullname, $file);
994
995	# Ignore non-readable files and directories?
996	next if ($input{hidenonreadable} && (! -r _ \|\| ($isdir && ! -x _)));
997
998	my $attic = '';
999	if ($file =~ s\|^Attic/\|\|) {
1000	$attic = ' <span class="attic">(in the Attic) ' .
1001	$hideAtticToggleLink . '</span>';
1002	}
1003
1004	if ($file eq updir() \|\| $isdir) {
1005	next if ($file eq updir() && $where eq '/');
1006	my ($rev, $date, $log, $author, $filename, $keywordsubst) =
1007	@{$fileinfo{$file}} if (defined($fileinfo{$file}));
1008	printf "<tr class=\"%s\">\n<td class=\"dir\" colspan=\"2\">",
1009	($dirrow % 2) ? 'even' : 'odd';
1010
1011	if ($file eq updir()) {
1012	my $url = "../$query";
1013	print $nofilelinks ? $backicon : &link($backicon, $url);
1014	print ' ', &link("Parent Directory", $url);
1015
1016	} else {
1017	my $url = './' . uri_escape_path($file) . "/$query";
1018	print '<a name="', htmlquote($file), '"></a>';
1019	print $nofilelinks ? $diricon : &link($diricon, $url);
1020	print ' ', &link(htmlquote("$file/"), $url), $attic;
1021	if ($file eq "Attic") {
1022	print ' <span class="attic">',
1023	&link('[show]',
1024	sprintf('./%s#dirlist', &toggleQuery('hideattic'))),
1025	'</span>';
1026	}
1027	}
1028
1029	# Show last change in dir
1030	if ($filename) {
1031	print "</td>\n<td> </td>\n<td class=\"age\">";
1032	print readableTime(time() - $date, 0) if $date;
1033	print "</td>\n<td class=\"author\">", htmlquote($author)
1034	if $show_author;
1035	print "</td>\n<td class=\"log\">";
1036	$filename =~ s%^[^/]+/%%;
1037	print &link(htmlquote("$filename/$rev"),
1038	sprintf('%s/%s%s#rev%s',
1039	uri_escape($file), uri_escape($filename),
1040	$query, $rev)), '<br />';
1041	if ($log) {
1042	print htmlify(substr($log, 0, $shortLogLen), $allow_dir_extra);
1043	print '...' if (length($log) > 80);
1044	}
1045
1046	} else {
1047	my $dwhere = ($where ne '/' ? $where : '') . $file;
1048
1049	if ($use_descriptions && defined $descriptions{$dwhere}) {
1050	print '<td colspan="', ($infocols - 1), '">';
1051	print $descriptions{$dwhere};
1052
1053	} elsif ($infocols > 1) {
1054
1055	# close the row with the appropriate number of
1056	# columns, so that the vertical seperators are visible
1057	my ($cols) = $infocols;
1058	while ($cols > 1) {
1059	print "</td>\n<td> ";
1060	$cols--;
1061	}
1062	}
1063	}
1064
1065	print "</td>\n</tr>\n";
1066	$dirrow++;
1067
1068	} elsif ($file =~ s/,v$//) {
1069
1070	my $fileurl = ($attic ? 'Attic/' : '') . uri_escape_path($file);
1071	my $url = './' . $fileurl . $query;
1072	$filesexists++;
1073	next if (!defined($fileinfo{$file}));
1074	my ($rev, $date, $log, $author, $filename, $keywordsubst) =
1075	@{$fileinfo{$file}};
1076	my $isbinary = $keywordsubst eq 'b' ? 1 : 0;
1077	$filesfound++;
1078
1079	printf "<tr class=\"%s\">\n", ($dirrow % 2) ? 'even' : 'odd';
1080	printf '<td class="file"%s>', $allow_cvsgraph ? '' : ' colspan="2"';
1081
1082	my $icon = $isbinary ? $binfileicon : $fileicon;
1083	print $nofilelinks ? $icon : &link($icon, $url);
1084	print ' ', &link(htmlquote($file), $url), $attic;
1085	print '</td><td class="graph">', graph_link($fileurl) if $allow_cvsgraph;
1086	print "</td>\n<td width=\"30\">", display_link($fileurl, $rev);
1087	print "</td>\n<td class=\"age\">";
1088	print readableTime(time() - $date, 0) if $date;
1089	print "</td>\n<td class=\"author\">", htmlquote($author) if $show_author;
1090	print "</td>\n<td class=\"log\">";
1091
1092	if ($log) {
1093	print htmlify(substr($log, 0, $shortLogLen), $allow_dir_extra);
1094	print '...' if (length $log > 80);
1095	}
1096	print "</td>\n</tr>";
1097	$dirrow++;
1098	}
1099	print "\n";
1100	}
1101
1102	print "</table>\n";
1103
1104	if ((my $num = scalar(@unreadable)) && ! $input{hidenonreadable}) {
1105	printf(<<EOF, $num, htmlquote(join(', ', @unreadable)));
1106	<p>
1107	<b>NOTE:</b> The following %d unreadable files were ignored:<br />
1108	<em>%s</em>
1109	</p>
1110	EOF
1111	}
1112
1113	if ($filesexists && !$filesfound) {
1114	my $currtag = defined($input{only_with_tag}) ?
1115	sprintf(' (%s)', htmlquote($input{only_with_tag})) : '';
1116	printf(<<EOF, $filesexists, $currtag);
1117	<p>
1118	<b>NOTE:</b> There are %d files, but none matches the current tag%s.
1119	</p>
1120	EOF
1121	}
1122
1123	if ($input{only_with_tag} && (!%tags \|\| !$tags{$input{only_with_tag}})) {
1124	%tags = %alltags;
1125	}
1126
1127	if (scalar %tags
1128	\|\| $input{only_with_tag}
1129	\|\| $edit_option_form
1130	\|\| defined($input{options}))
1131	{
1132	print "<hr />\n";
1133	}
1134
1135	if (scalar %tags \|\| $input{only_with_tag}) {
1136	print "<form method=\"get\" action=\"./\">\n<p>\n";
1137	foreach my $var (@stickyvars) {
1138	printf("<input type=\"hidden\" name=\"$var\" value=\"%s\" />\n",
1139	htmlquote($input{$var}))
1140	if (defined($input{$var})
1141	&& (!defined($DEFAULTVALUE{$var})
1142	\|\| $input{$var} ne $DEFAULTVALUE{$var})
1143	&& $var ne 'only_with_tag');
1144	}
1145	printf(<<EOF, ($use_java_script ? ' onchange="this.form.submit()"' : ''));
1146	<span class="nowrap">
1147	<label for="only_with_tag" accesskey="T">Show only files with tag:
1148	<select id="only_with_tag" name="only_with_tag"%s>
1149	<option value="">All tags / default branch</option>
1150	EOF
1151	foreach my $tag (reverse sort { lc $a cmp lc $b } keys %tags) {
1152	my $selected =
1153	defined($input{only_with_tag}) && $input{only_with_tag} eq $tag;
1154	printf("<option%s>%s</option>\n",
1155	$selected ? ' selected="selected"' : '',
1156	htmlquote($tag));
1157	}
1158	printf(<<EOF, htmlquote($where));
1159	</select>
1160	</label></span> <span class="nowrap">
1161	<label for="path" accesskey="P">Module path or alias:
1162	<input type="text" id="path" name="path" value="%s" size="15" /></label>
1163	</span>
1164	<input type="submit" value="Go" accesskey="G" />
1165	</p>
1166	</form>
1167	EOF
1168	}
1169
1170	if ($allow_tar && $filesfound) {
1171	my ($basefile) = ($where =~ m,(?:.*/)?([^/]+),);
1172	my $havetar = $CMD{tar} && $CMD{gzip};
1173	my $havezip = $CMD{zip};
1174	if (defined($basefile) && $basefile ne '' && ($havetar \|\| $havezip)) {
1175	my $q = ($query ? "$query;" : '?') . 'tarball=1';
1176	print "<hr />\n",
1177	'<div style="text-align: center">Download this directory in ';
1178	# Mangle the filename so browsers show a reasonable filename to download.
1179	my @types = ();
1180	$basefile = uri_escape($basefile);
1181	push(@types, &link('tarball', "$basefile.tar.gz$q")) if $havetar;
1182	push(@types, &link('zip archive', "$basefile.zip$q")) if $havezip;
1183	print join(' or ', @types), "</div>\n";
1184	}
1185	}
1186
1187	if ($edit_option_form \|\| defined($input{options})) {
1188
1189	print <<EOF;
1190	<form method="get" action="./">
1191	<fieldset>
1192	<legend>General options</legend>
1193	<input type="hidden" name="copt" value="1" />
1194	EOF
1195	for my $v qw(hidecvsroot hidenonreadable) {
1196	printf(qq{<input type="hidden" name="%s" value="%s" />\n},
1197	$v, $input{$v} \|\| 0);
1198	}
1199	if ($cvstree ne $cvstreedefault) {
1200	print "<input type=\"hidden\" name=\"cvsroot\" value=\"$cvstree\" />\n";
1201	}
1202	print <<EOF;
1203	<table summary="General options">
1204	<tr>
1205	<td class="opt-label">
1206	<label for="sortby" accesskey="F">Sort files by:</label>
1207	</td>
1208	<td class="opt-value">
1209	<select id="sortby" name="sortby">
1210	<option value="">File</option>
1211	EOF
1212	print "<option", $bydate ? ' selected="selected"' : '',
1213	" value=\"date\">Age</option>\n";
1214	print "<option", $byauthor ? ' selected="selected"' : '',
1215	" value=\"author\">Author</option>\n"
1216	if $show_author;
1217	print "<option", $byrev ? ' selected="selected"' : '',
1218	" value=\"rev\">Revision</option>\n";
1219	print "<option", $bylog ? ' selected="selected"' : '',
1220	" value=\"log\">Log message</option>\n";
1221	print <<EOF;
1222	</select>,
1223	<label for="ignorecase" accesskey="I">case-insensitive:
1224	EOF
1225	print '<input id="ignorecase" name="ignorecase" type="checkbox"',
1226	$input{ignorecase} ? ' checked="checked"' : '',
1227	" value=\"1\" /></label>\n";
1228	print <<EOF;
1229	</td>
1230	<td class="opt-label">
1231	<label for="hideattic" accesskey="A">Hide files in Attic:</label>
1232	</td>
1233	<td class="opt-value">
1234	EOF
1235	print '<input id="hideattic" name="hideattic" type="checkbox"',
1236	$input{hideattic} ? ' checked="checked"' : '', ' value="1" />';
1237	print <<EOF;
1238	</td>
1239	</tr>
1240	<tr>
1241	<td class="opt-label">
1242	<label for="logsort" accesskey="L">Sort log by:</label>
1243	</td>
1244	<td class="opt-value">
1245	EOF
1246	printLogSortSelect(0);
1247	print <<EOF;
1248	</td>
1249	<td class="opt-label">
1250	<label for="ln" accesskey="N">Show line numbers:</label>
1251	</td>
1252	<td class="opt-value">
1253	EOF
1254	print '<input id="ln" name="ln" type="checkbox"',
1255	$input{ln} ? ' checked="checked"' : '', " value=\"1\" />\n";
1256	print <<EOF;
1257	</td>
1258	</tr>
1259	<tr>
1260	<td class="opt-label">
1261	<label for="f" accesskey="D">Diff format:</label>
1262	</td>
1263	<td>
1264	EOF
1265	printDiffSelect(0);
1266	print <<EOF;
1267	</td>
1268	<td colspan="2" class="opt-label">
1269	<input type="submit" value="Change Options" accesskey="C" />
1270	</td>
1271	</tr>
1272	</table>
1273	</fieldset>
1274	</form>
1275	EOF
1276	}
1277	html_footer();
1278	}
1279
1280	###############################
1281	# View Files
1282	###############################
1283	elsif (-f $fullname . ',v') {
1284
1285	if (defined($input{rev}) \|\| $doCheckout) {
1286	&doCheckout($fullname, $input{rev}, $input{only_with_tag});
1287	gzipclose();
1288	exit;
1289	}
1290
1291	if (defined($input{annotate}) && $allow_annotate) {
1292	&doAnnotate($input{annotate}, $input{only_with_tag});
1293	gzipclose();
1294	exit;
1295	}
1296
1297	if (defined($input{r1}) && defined($input{r2})) {
1298	&doDiff($fullname, $input{r1}, $input{tr1},
1299	$input{r2}, $input{tr2}, $input{f});
1300	gzipclose();
1301	exit;
1302	}
1303
1304	if ($allow_cvsgraph && $input{graph}) {
1305	if ($input{makeimage}) {
1306	doGraph();
1307	} else {
1308	doGraphView();
1309	}
1310	gzipclose();
1311	exit;
1312	}
1313
1314	&doLog($fullname);
1315	}
1316
1317	##############################
1318	# View Diff
1319	##############################
1320	elsif ($fullname =~ s/\.diff$//
1321	&& -f $fullname . ',v' && $input{r1} && $input{r2})
1322	{
1323
1324	# $where-diff-removal if 'cvs rdiff' is used
1325	# .. but 'cvs rdiff'doesn't support some options
1326	# rcsdiff does (-w and -p), so it is disabled
1327	# $where =~ s/\.diff$//;
1328
1329	# Allow diffs using the ".diff" extension so that browsers that default
1330	# to the filename in the URL when saving don't save diffs as eg. foo.c.
1331	&doDiff($fullname, $input{r1}, $input{tr1},
1332	$input{r2}, $input{tr2}, $input{f});
1333	gzipclose();
1334	exit;
1335
1336	}
1337
1338	elsif (do { (my $tmp = $fullname) =~ s\|/([^/]+)$\|/Attic/$1\|; -f "$tmp,v" }) {
1339	# The file has been removed and is in the Attic.
1340	# Send a redirect pointing to the file in the Attic.
1341	(my $newplace = $scriptwhere) =~ s\|/([^/]+)$\|/Attic/$1\|;
1342	if ($ENV{QUERY_STRING} ne "") {
1343	redirect("$newplace?$ENV{QUERY_STRING}");
1344	} else {
1345	redirect($newplace);
1346	}
1347	exit;
1348
1349	}
1350
1351	elsif (0 && (my @files = &safeglob($fullname . ",v"))) {
1352	http_header("text/plain");
1353	print "You matched the following files:\n";
1354	print join ("\n", @files);
1355
1356	# TODO:
1357	# Find the tags from each file
1358	# Display a form offering diffs between said tags
1359	}
1360
1361	else {
1362	# Assume it's a module name with a potential path following it.
1363	my $module;
1364	my $xtra = (($module = $where) =~ s\|(/.*)\|\|) ? $1 : '';
1365
1366	# Is there an indexed version of modules?
1367	my $fh = do { local (*FH); };
1368	if (open($fh, catfile($cvsroot, 'CVSROOT', 'modules'))) {
1369	while (<$fh>) {
1370	if (/^(\S+)\s+(\S+)/o
1371	&& $module eq $1
1372	&& $module ne $2
1373	&& -d "$cvsroot/$2")
1374	{
1375	close($fh);
1376	redirect("$scriptname/$2$xtra$query");
1377	}
1378	}
1379	close($fh);
1380	}
1381	fatal("404 Not Found", '%s: no such file or directory', $where);
1382	}
1383
1384	gzipclose();
1385
1386	## End MAIN
1387
1388
1389	sub printDiffSelect($)
1390	{
1391	my ($use_java_script) = @_;
1392
1393	print '<select id="f" name="f"';
1394	print ' onchange="this.form.submit()"' if $use_java_script;
1395	print ">\n";
1396
1397	for my $difftype (@DIFFTYPES) {
1398	printf("<option value=\"%s\"%s>%s</option>\n",
1399	$difftype, $input{f} eq $difftype ? ' selected="selected"' : '',
1400	"\u$DIFFTYPES{$difftype}{descr}");
1401	}
1402
1403	print "</select>";
1404	}
1405
1406
1407	sub printDiffSelectStickyVars()
1408	{
1409	while (my ($key, $val) = each %input) {
1410	next if ($key eq 'f');
1411	next if (defined($DEFAULTVALUE{$key}) && $DEFAULTVALUE{$key} eq $val);
1412	print "<input type=\"hidden\" name=\"", htmlquote($key), "\" value=\"",
1413	htmlquote($val), "\" />\n";
1414	}
1415	}
1416
1417
1418	sub printLogSortSelect($)
1419	{
1420	my ($use_java_script) = @_;
1421
1422	print '<select id="logsort" name="logsort"';
1423	print ' onchange="this.form.submit()"' if $use_java_script;
1424	print ">\n";
1425
1426	for my $sortkey (@LOGSORTKEYS) {
1427	printf("<option value=\"%s\"%s>%s</option>\n",
1428	$sortkey, $logsort eq $sortkey ? ' selected="selected"' : '',
1429	"\u$LOGSORTKEYS{$sortkey}{descr}");
1430	}
1431
1432	print "</select>";
1433	}
1434
1435
1436	#
1437	# Find the last modified, version controlled files in the given directories.
1438	# Compares solely based on modification timestamps. Files in the returned list
1439	# are without the ,v suffix, and unreadable files have been filtered out.
1440	#
1441	sub findLastModifiedSubdirs(@)
1442	{
1443	my (@dirs) = @_;
1444
1445	my @files;
1446	foreach my $dirname (@dirs) {
1447	next if ($dirname eq curdir() \|\| $dirname eq updir());
1448	my $dir = catdir($fullname, $dirname);
1449	next if (!-d $dir);
1450
1451	my $dh = do { local (*DH); };
1452	opendir($dh, $dir) or next;
1453	my (@filenames) = grep(!forbidden(catfile($dir, $_)), readdir($dh));
1454	closedir($dh);
1455
1456	my $lastmod = undef;
1457	my $lastmodtime = undef;
1458	foreach my $filename (@filenames) {
1459	($filename) =
1460	(catfile($dirname, $filename) =~ VALID_PATH) or next; # untaint
1461	my ($file) = catfile($fullname, $filename);
1462	next if ($filename !~ /,v$/o \|\| !-f $file \|\| !-r _);
1463	my $modtime = -M _;
1464	if (!defined($lastmod) \|\| $modtime < $lastmodtime) {
1465	($lastmod = $filename) =~ s/,v$//;
1466	$lastmodtime = $modtime;
1467	}
1468	}
1469	push(@files, $lastmod) if (defined($lastmod));
1470	}
1471	return @files;
1472	}
1473
1474
1475	sub htmlify_sub(&$)
1476	{
1477	(my $proc, local $_) = @_;
1478	my @a = split(m\|(<a [^>]+>[^<]*</a>)\|i);
1479	my $linked;
1480	my $result = '';
1481
1482	while (($_, $linked) = splice(@a, 0, 2)) {
1483	&$proc();
1484	$result .= $_ if defined($_);
1485	$result .= $linked if defined($linked);
1486	}
1487
1488	return $result;
1489	}
1490
1491
1492	sub htmlify($;$)
1493	{
1494	(local $_, my $extra) = @_;
1495
1496	$_ = htmlquote($_);
1497
1498	# get URL's as link
1499	s{
1500	((https?\|ftp)://.+?)([\s\']\|&(quot\|[lg]t);)
1501	}{
1502	&link($1, htmlunquote($1)) . $3
1503	}egx;
1504
1505	if ($allow_mailtos) {
1506	# Make mailto: links from email addresses.
1507	$_ = htmlify_sub {
1508	s<
1509	([\w+=\-.!]+@[\w\-]+(?:\.[\w\-]+)+)
1510	><
1511	&link($1, "mailto:$1")
1512	>egix;
1513	} $_;
1514	}
1515
1516	if ($extra) {
1517
1518	# get PR #'s as link: "PR#nnnn" "PR: nnnn, ..." "PR nnnn, ..." "bin/nnnn"
1519	if (defined($prcgi) && defined($re_prkeyword)) {
1520	my $prev;
1521
1522	do {
1523	$prev = $_;
1524
1525	$_ = htmlify_sub {
1526	s{
1527	(\b$re_prkeyword[:\#]?\s*
1528	(?:
1529	\#?
1530	\d+[,\s]\s*
1531	)*
1532	\#?)
1533	(\d+)\b
1534	}{
1535	$1 . &link($2, sprintf($prcgi, $2))
1536	}egix;
1537	} $_;
1538	} while ($_ ne $prev);
1539
1540	if (defined($re_prcategories)) {
1541	$_ = htmlify_sub {
1542	s{
1543	(\b$re_prcategories/(\d+)\b)
1544	}{
1545	&link($1, sprintf($prcgi, $2))
1546	}egox;
1547	} $_;
1548	}
1549	}
1550
1551	# get manpage specs as link: "foo.1" "foo(1)"
1552	if (defined($mancgi)) {
1553	$_ = htmlify_sub {
1554	s{
1555	(
1556	\b ( \w[\w+\-.]* (?: ::\w[\w+\-.]) )
1557	(?:
1558	$ ([0-9n]) $ \B
1559	\|
1560	\. ([0-9n]) \b
1561	)
1562	)
1563	}{
1564	my($text, $name, $section) = ($1, $2, defined($3) ? $3 : $4);
1565	($name =~ /[A-Za-z]/ && $name !~ /\.(:\|$)/)
1566	? &link($text, sprintf($mancgi, $section, uri_escape($name)))
1567	: $text;
1568	}egx;
1569	} $_;
1570	}
1571	}
1572
1573	return $_;
1574	}
1575
1576
1577	sub spacedHtmlText($;$)
1578	{
1579	(local $_, my $ts) = @_;
1580	return '' unless defined($_);
1581	$ts \|\|= $tabstop \|\| 8;
1582
1583	# Expand tabs
1584	1 while s/(.?)(\t+)/$1 . ' ' x (length($2) $ts - length($1) % $ts)/e;
1585
1586	if ($hr_breakable) {
1587	s/^ /\001nbsp;/; # protect leading and...
1588	s/ $/\001nbsp;/; # ...trailing whitespace (mostly for String::Ediff),
1589	s/ / \001nbsp;/g; # ...and leave every other space 'breakable'
1590	} else {
1591	s/ /\001nbsp;/g;
1592	}
1593
1594	$_ = htmlify($_, $allow_source_extra);
1595
1596	# unescape
1597	y/\001/&/;
1598
1599	return $_;
1600	}
1601
1602
1603	# Note that this doesn't htmlquote the first argument...
1604	sub link($$)
1605	{
1606	my ($name, $url) = @_;
1607	return sprintf('<a href="%s">%s</a>', htmlquote($url), $name);
1608	}
1609
1610
1611	sub revcmp($$)
1612	{
1613	my ($rev1, $rev2) = @_;
1614
1615	# make no comparison for a tag or a branch
1616	return 0 if $rev1 =~ /[^\d.]/ \|\| $rev2 =~ /[^\d.]/;
1617
1618	my (@r1) = split(/\./, $rev1);
1619	my (@r2) = split(/\./, $rev2);
1620	my ($a, $b);
1621
1622	while (($a = shift(@r1)) && ($b = shift(@r2))) {
1623	return $a <=> $b unless ($a == $b);
1624	}
1625	if (@r1) { return 1; }
1626	if (@r2) { return -1; }
1627	return 0;
1628	}
1629
1630
1631	#
1632	# Signal a fatal error.
1633	#
1634	sub fatal($$@)
1635	{
1636	my ($errcode, $format, @args) = @_;
1637	print "Status: $errcode\r\n";
1638	html_header('Error');
1639	print '<div id="error">Error: ',
1640	sprintf($format, map(htmlquote($_), @args)), "</div>\n";
1641	html_footer();
1642	exit(1);
1643	}
1644
1645
1646	#
1647	# Signal a (fatal) configuration error.
1648	#
1649	sub config_error($$)
1650	{
1651	fatal('500 Internal Error',
1652	'Error loading configuration file "<code>%s</code>":<br /><br />' .
1653	'%s<br />', @_);
1654	}
1655
1656
1657	#
1658	# Sends a redirect to the given URL.
1659	#
1660	sub redirect($;$)
1661	{
1662	my ($url, $permanent) = @_;
1663	my ($status, $text);
1664	if ($permanent) {
1665	$status = '301';
1666	$text = 'Moved Permanently';
1667	} else {
1668	$status = '302';
1669	$text = 'Found';
1670	}
1671	print "Status: $status $text\r\n", "Location: $url\r\n";
1672	html_header($text);
1673	print "<p>This document has moved ", &link('here', $url), ".</p>\n";
1674	html_footer();
1675	exit(1);
1676	}
1677
1678
1679	sub safeglob($)
1680	{
1681	my ($filename) = @_;
1682
1683	(my $dirname = $filename) =~ s\|/[^/]+$\|\|;
1684	$filename =~ s\|.*/\|\|;
1685
1686	my @results;
1687	my $dh = do { local (*DH); };
1688	if (opendir($dh, $dirname)) {
1689	my $glob = $filename;
1690	my $t;
1691
1692	# transform filename from glob to regex. Deal with:
1693	# [, {, ?, * as glob chars
1694	# make sure to escape all other regex chars
1695	$glob =~ s/([\.\\|\+])/\\$1/g;
1696	$glob =~ s/\/./g;
1697	$glob =~ s/\?/./g;
1698	$glob =~ s/{([^}]+)}/($t = $1) =~ s-,-\|-g; "($t)"/eg;
1699	$glob = qr/^$glob$/;
1700
1701	foreach (readdir($dh)) {
1702	if ($_ =~ $glob && $_ =~ VALID_PATH) {
1703	push(@results, catfile($dirname, $1)); # untaint
1704	}
1705	}
1706	closedir($dh);
1707	}
1708
1709	return @results;
1710	}
1711
1712
1713	#
1714	# Searches @command_path for the given executable file.
1715	#
1716	sub search_path($)
1717	{
1718	my ($command) = @_;
1719	for my $d (@command_path) {
1720	my $cmd = catfile($d, $command);
1721	return $cmd if (-x $cmd && !-d _);
1722	}
1723	return '';
1724	}
1725
1726
1727	#
1728	# Gets the enscript(1) highlight mode corresponding to the given filename,
1729	# or undef if unsupported.
1730	#
1731	sub getEnscriptHL($)
1732	{
1733	return undef unless $allow_enscript;
1734	my ($filename) = @_;
1735	while (my ($hl, $regex) = each %enscript_types) {
1736	return $hl if ($filename =~ $regex);
1737	}
1738	return undef;
1739	}
1740
1741
1742	#
1743	# Gets the MIME type for the given file name.
1744	#
1745	sub getMimeType($;$)
1746	{
1747	my ($fullname, $binary) = @_;
1748	$binary = ($keywordsubstitution && $keywordsubstitution =~ /b/)
1749	unless defined($binary);
1750
1751	(my $suffix = $fullname) =~ s/^.\.([^.])$/$1/;
1752
1753	my $mimetype = $MTYPES{$suffix};
1754	$mimetype \|\|= $MimeTypes->mimeTypeOf($fullname) if defined($MimeTypes);
1755
1756	if (!$mimetype && $suffix ne '*' && -f $mime_types && -r _) {
1757	my $fh = do { local (*FH); };
1758	if (open($fh, $mime_types)) {
1759	my $re = sprintf('^\s*(\S+\/\S+)\s.+\b%s\b', quotemeta($suffix));
1760	$re = qr/$re/;
1761	while (my $line = <$fh>) {
1762	if ($line =~ $re) {
1763	$mimetype = $1;
1764	$MTYPES{$suffix} = $mimetype;
1765	last;
1766	}
1767	}
1768	close($fh);
1769	} else {
1770	warn("Can't open MIME types file $mime_types for reading: $!");
1771	}
1772	}
1773
1774	$mimetype \|\|= $MTYPES{'*'};
1775	$mimetype \|\|= $binary ? 'application/octet-stream' : 'text/plain';
1776	return $mimetype;
1777	}
1778
1779
1780	###############################
1781	# read first lines like head(1)
1782	###############################
1783	sub head($;$)
1784	{
1785	my ($fh, $linecount) = @_;
1786	$linecount \|\|= 10;
1787
1788	my @buf;
1789	if ($linecount > 0) {
1790	for (my $i = 0; !eof($fh) && $i < $linecount; $i++) {
1791	push @buf, scalar <$fh>;
1792	}
1793	} else {
1794	@buf = <$fh>;
1795	}
1796	return @buf;
1797	}
1798
1799
1800	###############################
1801	# scan vim and Emacs directives
1802	###############################
1803	sub scan_directives(@)
1804	{
1805	my $ts = undef;
1806
1807	for (@_) {
1808	$ts = $1 if /\b(?:ts\|tabstop\|tab-width)[:=]\s([1-9]\d)\b/;
1809	}
1810
1811	('tabstop' => $ts);
1812	}
1813
1814
1815	sub openOutputFilter()
1816	{
1817	return unless $output_filter;
1818
1819	open(STDOUT, "\|-") and return;
1820
1821	# child of child
1822	open(STDERR, '>', devnull()) unless $DEBUG;
1823	exec($output_filter) or exit -1;
1824	}
1825
1826
1827	###############################
1828	# show Annotation
1829	###############################
1830	sub doAnnotate($$)
1831	{
1832	my ($rev, $tag) = @_;
1833	$rev = $tag \|\| 'HEAD' if ($rev eq '.');
1834	(my $pathname = $where) =~ s\|((?<=/)Attic/)?[^/]*$\|\|;
1835	(my $filename = $where) =~ s\|^.*/\|\|;
1836
1837	# This annotate version is based on the cvs annotate-demo Perl script by
1838	# Cyclic Software. It was written by Cyclic Software,
1839	# http://www.cyclic.com/, and is in the public domain.
1840	# We could abandon the use of rlog, rcsdiff and co using
1841	# the cvs server in a similiar way one day (..after rewrite).
1842
1843	local (CVS_IN, CVS_OUT);
1844	my $annotate_err;
1845	my ($h, $err) =
1846	startproc([ $CMD{cvs}, @annotate_options, 'server' ],
1847	'<pipe', \CVS_IN, '>pipe', \CVS_OUT,
1848	'2>', \$annotate_err);
1849	fatal('500 Internal Error',
1850	'Annotate failure (exit status %s), output: <pre>%s</pre>',
1851	$? >> 8 \|\| -1, $err)
1852	unless $h;
1853
1854	# OK, first send the request to the server. A simplified example is:
1855	# Root /home/kingdon/zwork/cvsroot
1856	# Argument foo/xx
1857	# Directory foo
1858	# /home/kingdon/zwork/cvsroot/foo
1859	# Directory .
1860	# /home/kingdon/zwork/cvsroot
1861	# annotate
1862	# although as you can see there are a few more details.
1863
1864	print CVS_IN "Root $cvsroot\n";
1865	print CVS_IN
1866	"Valid-responses ok error Valid-requests Checked-in Updated Merged Removed M E\n";
1867
1868	# Don't worry about sending valid-requests, the server just needs to
1869	# support "annotate" and if it doesn't, there isn't anything to be done.
1870	print CVS_IN "UseUnchanged\n";
1871	print CVS_IN "Argument -r\n";
1872	print CVS_IN "Argument $rev\n";
1873	print CVS_IN "Argument $where\n";
1874
1875	# The protocol requires us to fully fake a working directory (at
1876	# least to the point of including the directories down to the one
1877	# containing the file in question).
1878	# So if $where is "dir/sdir/file", then dirs will be ("dir","sdir","file")
1879	my $path = '';
1880	foreach my $dir (split('/', $where)) {
1881
1882	if ($path eq "") {
1883	# In our example, $dir is "dir".
1884	$path = $dir;
1885	} else {
1886	print CVS_IN "Directory $path\n";
1887	print CVS_IN "$cvsroot/$path\n";
1888
1889	# In our example, $_ is "sdir" and $path becomes "dir/sdir"
1890	# And the next time, "file" and "dir/sdir/file" (which then gets
1891	# ignored, because we don't need to send Directory for the file).
1892	$path .= "/$dir";
1893	}
1894	}
1895	undef $path;
1896
1897	# And the last "Directory" before "annotate" is the top level.
1898	print CVS_IN "Directory .\n";
1899	print CVS_IN "$cvsroot\n";
1900
1901	print CVS_IN "annotate\n";
1902
1903	# OK, we've sent our command to the server. Thing to do is to
1904	# close the writer side and get all the responses.
1905	if (!close(CVS_IN)) {
1906	$h->finish();
1907	fatal('500 Internal Error',
1908	'Annotate failure (exit status %s): <code>%s</code>, output: ' .
1909	'<pre>%s</pre>', $? >> 8, $!, $annotate_err);
1910	}
1911
1912	navigateHeader($scriptwhere, $pathname, $filename, $rev, 'annotate');
1913
1914	my $revtype = ($rev =~ /\./) ? 'revision' : 'tag'; # TODO: tag -> branch/tag?
1915	print '<h3 style="text-align: center">Annotation of ',
1916	htmlquote("$pathname$filename"), ", $revtype $rev</h3>\n";
1917
1918	# Ready to get the responses from the server.
1919	# For example:
1920	# E Annotations for foo/xx
1921	# E ***************
1922	# M 1.3 (kingdon 06-Sep-97): hello
1923	# ok
1924	my ($lineNr) = 0;
1925	my ($oldLrev, $oldLusr) = ("", "");
1926	my ($revprint, $usrprint);
1927
1928	if ($annTable) {
1929	print <<EOF;
1930	<table style="border: none" cellspacing="0" cellpadding="0" summary="Annotation">
1931	EOF
1932	} else {
1933	print "<pre>";
1934	}
1935
1936	# prefetch several lines
1937	my @buf = head(*CVS_OUT);
1938
1939	my %d = scan_directives(@buf);
1940
1941	while (@buf \|\| !eof(*CVS_OUT)) {
1942
1943	$_ = @buf ? shift @buf : <CVS_OUT>;
1944	my @words = split;
1945
1946	# Adding one is for the (single) space which follows $words[0].
1947	my $rest = substr($_, length($words[0]) + 1);
1948	if ($words[0] eq "E") {
1949	next;
1950	} elsif ($words[0] eq "M") {
1951	$lineNr++;
1952	(my $lrev = substr($_, 2, 13)) =~ y/ //d;
1953	(my $lusr = substr($_, 16, 9)) =~ y/ //d;
1954	my $line = substr($_, 36);
1955	# TODO: this does not work for branch/tag revisions.
1956	my $isCurrentRev = ($rev eq $lrev);
1957
1958	# we should parse the date here ..
1959	if ($lrev eq $oldLrev) {
1960	$revprint = sprintf('%-8s', '');
1961	} else {
1962	$revprint = sprintf('%-8s', $lrev);
1963	$revprint =~ s\|(\S+)\|&link($1, uri_escape($filename)."$query#rev$1")\|e;
1964	$oldLusr = '';
1965	}
1966
1967	$usrprint = ($lusr eq $oldLusr) ? '' : $lusr;
1968	$oldLrev = $lrev;
1969	$oldLusr = $lusr;
1970
1971	print $is_textbased ? '<b>' : '<span class="current-rev">'
1972	if $isCurrentRev;
1973
1974	$usrprint = sprintf('%-8s', $usrprint);
1975	printf '%s%s %s %4d:', $revprint, $isCurrentRev ? '!' : ' ',
1976	htmlquote($usrprint), $lineNr;
1977	print spacedHtmlText($line, $d{tabstop});
1978
1979	print $is_textbased ? '</b>' : '</span>' if $isCurrentRev;
1980
1981	} elsif ($words[0] eq "ok") {
1982	# We could complain about any text received after this, like the
1983	# CVS command line client. But for simplicity, we don't.
1984
1985	} elsif ($words[0] eq "error") {
1986	fatal("500 Internal Error",
1987	'Error occured during annotate: <b>%s</b>', $_);
1988	}
1989	}
1990	$h->finish();
1991
1992	if ($annTable) {
1993	print "</table>";
1994	} else {
1995	print "</pre>";
1996	}
1997	html_footer();
1998	}
1999
2000	###############################
2001	# make Checkout
2002	###############################
2003	sub doCheckout($$$)
2004	{
2005	my ($fullname, $rev, $tag) = @_;
2006	$rev = $tag \|\| undef if (!$rev \|\| $rev eq '.');
2007
2008	# Start resolving whether we will do a markup view or not.
2009	my $do_markup = undef;
2010	my $want_type = $input{'content-type'};
2011
2012	# No markup if markup disallowed.
2013	$do_markup = 0 unless $allow_markup;
2014
2015	# No markup if checkout magic cookie in URL.
2016	$do_markup = 0 if (!defined($do_markup) && $doCheckout);
2017
2018	# Do markup if explicitly asked using cvsweb-markup content type. If the
2019	# asked content type is anything else, no markup.
2020	if (!defined($do_markup) && $want_type) {
2021	if ($want_type =~ CVSWEBMARKUP) {
2022	$want_type = undef;
2023	$do_markup = 1;
2024	} else {
2025	$do_markup = 0;
2026	}
2027	}
2028
2029	# Ok, if $do_markup is still undefined, we know that a download has not been
2030	# explicitly asked. For the last check further down below we'll need to
2031	# know if the file is binary, and possibly run a log on it.
2032	my $needlog = $do_markup \|\| $use_moddate;
2033
2034	my $moddate = undef;
2035	my $revopt;
2036	if (defined($rev)) {
2037	$revopt = "-r$rev";
2038	if ($needlog) {
2039	readLog($fullname, $rev);
2040	$moddate = $date{$rev};
2041	# TODO: even this does not work for branch tags, but only normal tags :(
2042	$moddate \|\|= $date{$symrev{$rev}} if defined($symrev{$rev});
2043	}
2044	} else {
2045	$revopt = "-rHEAD";
2046	if ($needlog) {
2047	readLog($fullname);
2048	$moddate = $date{$symrev{HEAD}};
2049	}
2050	}
2051
2052	my $cr = abs_path($cvsroot) \|\| $cvsroot;
2053	# abs_path() taints when run as a CGI...
2054	if ($cr =~ VALID_PATH) {
2055	$cr = $1;
2056	} else {
2057	fatal('500 Internal Error', 'Illegal CVS root: <code>%s</code>', $cr);
2058	}
2059	# Use abs_path() to work around a bug of cvs -p; expand symlinks if we can.
2060	my @cmd = ($CMD{cvs}, @cvs_options, '-d', $cr, 'co', '-p', $revopt, $where);
2061
2062	local (CVS_OUT, CVS_ERR);
2063	my ($h, $err) =
2064	startproc(\@cmd, \"", '>pipe', \CVS_OUT, '2>pipe', \CVS_ERR);
2065	fatal('500 Internal Error',
2066	'Checkout failure (exit status %s), output: <pre>%s</pre>',
2067	$? >> 8 \|\| -1, $err)
2068	unless $h;
2069
2070	if (eof(CVS_ERR)) {
2071	$h->finish();
2072	fatal("404 Not Found", '%s is not (any longer) pertinent', $where);
2073	}
2074
2075	#===================================================================
2076	#Checking out squid/src/ftp.c
2077	#RCS: /usr/src/CVS/squid/src/ftp.c,v
2078	#VERS: 1.1.1.28.6.2
2079	#***************
2080
2081	# Parse CVS header
2082	my ($revision, $filename, $cvsheader);
2083	$filename = "";
2084	while (<CVS_ERR>) {
2085	last if (/^\\\\/);
2086	$revision = $1 if (/^VERS: (.*)$/);
2087
2088	if (/^Checking out (.*)$/) {
2089	($filename = $1) =~ s\|^\./+\|\|;
2090	}
2091	$cvsheader .= $_;
2092	}
2093	close(CVS_ERR);
2094
2095	if ($filename ne $where) {
2096	$h->finish();
2097	fatal("500 Internal Error",
2098	'Unexpected output from cvs co: <pre>%s</pre> ' .
2099	'(expected "<code>%s</code>" but got "<code>%s</code>")',
2100	$cvsheader, $where, $filename);
2101	}
2102
2103	# Last checks whether we'll do markup or not.
2104	my $isbin = $keywordsubstitution && $keywordsubstitution =~ /b/;
2105	my $mimetype = getMimeType($fullname, $isbin);
2106
2107	# If we still are not sure whether to do markup or not:
2108	# if the MIME type is "viewable" or this is not a binary file, do.
2109	$do_markup = !$isbin \|\| viewable($mimetype) unless defined($do_markup);
2110
2111	if ($do_markup) {
2112
2113	# If this is something we'll be linking to in the markup view, we are
2114	# done with this particular output from "cvs co" and must discard it.
2115	my $linked = $mimetype =~ m{^image/\|application/pdf$}i;
2116	if ($linked) {
2117	close(CVS_OUT);
2118	$h->finish();
2119	}
2120
2121	# Here we know the last modified date, but don't know if tags have been
2122	# added afterwards (those are shown in the markup view): no last-modified.
2123	cvswebMarkup(\*CVS_OUT, $fullname, $revision, $isbin, $mimetype, $needlog);
2124
2125	$h->finish() unless $linked;
2126
2127	} else {
2128	http_header($want_type \|\| $mimetype, $moddate);
2129	local $/ = undef;
2130	print <CVS_OUT>;
2131	$h->finish();
2132	}
2133	}
2134
2135
2136	sub cvswebMarkup($$$$$$;$)
2137	{
2138	my ($filehandle, $fullname, $rev, $isbin, $mimetype, $logged, $mod) = @_;
2139
2140	(my $pathname = $where) =~ s\|((?<=/)Attic/)?[^/]*$\|\|;
2141	(my $filename = $where) =~ s\|^.*/\|\|;
2142
2143	navigateHeader($scriptwhere, $pathname, $filename, $rev, 'view', $mod);
2144
2145	print <<EOF;
2146	<hr />
2147	<div class="log-markup">
2148	File:
2149	EOF
2150	print &clickablePath($where, 1), "<br />\n";
2151
2152	if ($show_log_in_markup) {
2153	readLog($fullname) unless $logged; #,$rev);
2154	printLog($rev, $mimetype, $isbin);
2155	} else {
2156	print "Revision: <b>$rev</b><br />\n";
2157	print 'Tag: ', htmlquote($input{only_with_tag}), "<br />\n"
2158	if $input{only_with_tag};
2159	}
2160	print "</div>\n<hr />";
2161	my $url = download_url(uri_escape($filename), $rev, $mimetype);
2162
2163	if ($mimetype =~ m\|^image/\|i) {
2164	printf '<img src="%s" alt="%s" /><br />',
2165	$url . $barequery, htmlquote($filename);
2166	} elsif (lc($mimetype) eq 'application/pdf') {
2167	printf '<embed src="%s" width="100%%" height="100%%" /><br />',
2168	$url . $barequery;
2169	} else {
2170
2171	print "<pre>\n";
2172	my $linenumbers = $input{ln} \|\| 0;
2173
2174	if (my $enscript_hl = getEnscriptHL($filename)) {
2175	doEnscript($filehandle, $enscript_hl, $linenumbers);
2176
2177	} else {
2178	my $ln = 0;
2179	my @buf = ();
2180	my $ts = undef;
2181
2182	if ($preformat_in_markup) {
2183	# prefetch several lines
2184	@buf = head($filehandle);
2185	my %d = scan_directives(@buf);
2186	$ts = $d{tabstop};
2187	}
2188
2189	while (@buf \|\| !eof($filehandle)) {
2190	$_ = @buf ? shift @buf : <$filehandle>;
2191	if ($linenumbers) {
2192	$ln++;
2193	printf '<a id="l%d" class="src">%5d: </a>', ($ln) x 2;
2194	}
2195	print $preformat_in_markup ? spacedHtmlText($_, $ts) : htmlquote($_);
2196	}
2197	}
2198
2199	print "</pre>\n";
2200	}
2201	html_footer();
2202	}
2203
2204
2205	sub viewable($)
2206	{
2207	return shift =~ m{^((text\|image)/\|application/pdf)}i;
2208	}
2209
2210
2211	###############################
2212	# Show Colored Diff
2213	###############################
2214	sub doDiff($$$$$$)
2215	{
2216	my ($fullname, $r1, $tr1, $r2, $tr2, $f) = @_;
2217
2218	if (forbidden($fullname)) {
2219	fatal('403 Forbidden', 'Access to %s forbidden.', $where);
2220	}
2221
2222	my ($rev1, $sym1);
2223	if ($r1 =~ /([^:]+)(:(.+))?/) {
2224	$rev1 = $1;
2225	$sym1 = $3;
2226	}
2227	if ($r1 eq 'text') {
2228	$rev1 = $tr1;
2229	$sym1 = "";
2230	}
2231
2232	my ($rev2, $sym2);
2233	if ($r2 =~ /([^:]+)(:(.+))?/) {
2234	$rev2 = $1;
2235	$sym2 = $3;
2236	}
2237	if ($r2 eq 'text') {
2238	$rev2 = $tr2;
2239	$sym2 = "";
2240	}
2241
2242	#
2243	# rev1 and rev2 are now both numeric revisions.
2244	# Thus we do a DWIM here and swap them if rev1 is after rev2.
2245	# XXX should we warn about the fact that we do this?
2246	if (&revcmp($rev1, $rev2) > 0) {
2247	my ($tmp1, $tmp2) = ($rev1, $sym1);
2248	($rev1, $sym1) = ($rev2, $sym2);
2249	($rev2, $sym2) = ($tmp1, $tmp2);
2250	}
2251
2252	my $mimetype = getMimeType($fullname);
2253
2254	#
2255	# Check for per-MIME type diff commands.
2256	#
2257	my $diffcmd = undef;
2258	if (my $diffcmds = $DIFF_COMMANDS{lc($mimetype)}) {
2259	if ($f =~ /^ext(\d*)$/) {
2260	my $n = $1 \|\| 0;
2261	$diffcmd = $diffcmds->[$n];
2262	}
2263	}
2264	if ($diffcmd && $diffcmd->{cmd} && $diffcmd->{name}) {
2265
2266	if ($diffcmd->{args} && ref($diffcmd->{args}) ne 'ARRAY') {
2267	fatal('500 Internal Error',
2268	'Configuration error: arguments to external diff tools must ' .
2269	'be given as array refs. See "<code>%s</code>" in ' .
2270	'<code>%%DIFF_COMMANDS</code>.',
2271	$diffcmd->{name});
2272	}
2273
2274	(my $cvsname = $where) =~ s/\.diff$//;
2275
2276	# Create two temporary files with the two revisions
2277	my $temp_fn1 = checkout_to_temp($cvsroot, $cvsname, $rev1);
2278	my $temp_fn2 = checkout_to_temp($cvsroot, $cvsname, $rev2);
2279
2280	# Execute chosen diff binary.
2281	local (*DIFF_OUT);
2282	my @cmd = ($diffcmd->{cmd});
2283	push(@cmd, @{$diffcmd->{args}}) if $diffcmd->{args};
2284	push(@cmd, $temp_fn1, $temp_fn2);
2285	my ($h, $err) = startproc(\@cmd, \"", '>pipe', \*DIFF_OUT);
2286	if (!$h) {
2287	unlink($temp_fn1);
2288	unlink($temp_fn2);
2289	fatal('500 Internal Error',
2290	'Diff failure (exit status %s), output: <pre>%s</pre>',
2291	$? >> 8 \|\| -1, $err);
2292	}
2293
2294	http_header($diffcmd->{type} \|\| 'text/plain');
2295	local $/ = undef;
2296	print <DIFF_OUT>;
2297	$h->finish();
2298	unlink($temp_fn1);
2299	unlink($temp_fn2);
2300
2301	exit;
2302	}
2303
2304	#
2305	# Normal CVS diff.
2306	#
2307
2308	$f = $DEFAULTVALUE{f} \|\| 'u' if ($f =~ /^ext\d*$/);
2309	my $difftype = $DIFFTYPES{$f};
2310	if (!$difftype) {
2311	fatal("400 Bad arguments", 'Diff format %s not understood', $f);
2312	}
2313
2314	my @difftype = @{$difftype->{opts}};
2315	my $human_readable = $difftype->{colored};
2316
2317	# Apply special diff options. -p and -F are not available with side by side
2318	# diffs and may cause problems with older (< 2.8) versions of diffutils if
2319	# used with --side-by-side.
2320	if ($showfunc && $f !~ /^s/) {
2321	push(@difftype, '-p');
2322	while (my ($re1, $re2) = each %funcline_regexp) {
2323	if ($fullname =~ $re1) {
2324	push(@difftype, '-F', $re2);
2325	last;
2326	}
2327	}
2328	}
2329
2330	if ($human_readable) {
2331	push(@difftype, '-w') if $hr_ignwhite;
2332	push(@difftype, '-kk') if $hr_ignkeysubst;
2333	}
2334
2335	my $fh = do { local (*FH); };
2336	if (!open($fh, "-\|")) { # child
2337	open(STDERR, ">&STDOUT"); # Redirect stderr to stdout
2338	openOutputFilter();
2339	exec($CMD{rcsdiff}, @rcsdiff_options, @difftype, "-r$rev1", "-r$rev2",
2340	$fullname) or exit -1;
2341	}
2342
2343	if ($human_readable) {
2344	#
2345	# Human readable diff.
2346	#
2347	human_readable_diff($fh, $rev2);
2348	html_footer();
2349	gzipclose();
2350	exit;
2351
2352	} elsif ($f =~ /^([ucs])c$/) {
2353	#
2354	# Enscript colored diff.
2355	#
2356	my $hl = 'diff';
2357	$hl .= $1 if ($1 eq 'u' \|\| $1 eq 's');
2358	(my $where_nd = $where) =~ s/\.diff$//;
2359	(my $pathname = $where_nd) =~ s\|((?<=/)Attic/)?[^/]*$\|\|;
2360	(my $filename = $where_nd) =~ s\|^.*/\|\|;
2361	(my $swhere = $scriptwhere) =~ s\|\.diff$\|\|;
2362	navigateHeader($swhere, $pathname, $filename, $rev2, 'diff');
2363	printf(<<EOF, $where_nd, $rev1, $rev2);
2364	<h3 style="text-align: center">Diff for /%s between versions %s and %s</h3>
2365	<pre>
2366	EOF
2367	doEnscript(\$fh, $hl, 0, 'cvsweb_diff');
2368	print <<EOF;
2369	</pre>
2370	<hr style="width: 100%" />
2371	<form method="get" action="$scriptwhere">
2372	EOF
2373	printDiffSelectStickyVars();
2374	print 'Diff format: ';
2375	printDiffSelect($use_java_script);
2376	print "<input type=\"submit\" value=\"Show\" />\n</form>\n";
2377	html_footer();
2378	gzipclose();
2379	exit;
2380
2381	} else {
2382	#
2383	# Plain diff.
2384	#
2385	http_header("text/plain");
2386	}
2387
2388	#
2389	#===================================================================
2390	#RCS file: /home/ncvs/src/sys/netinet/tcp_output.c,v
2391	#retrieving revision 1.16
2392	#retrieving revision 1.17
2393	#diff -c -r1.16 -r1.17
2394	#*** /home/ncvs/src/sys/netinet/tcp_output.c 1995/11/03 22:08:08 1.16
2395	#--- /home/ncvs/src/sys/netinet/tcp_output.c 1995/12/05 17:46:35 1.17
2396	#
2397	# Ideas:
2398	# - nuke the stderr output if it's what we expect it to be
2399	# - Add "no differences found" if the diff command supplied no output.
2400	#
2401	#*** src/sys/netinet/tcp_output.c 1995/11/03 22:08:08 1.16
2402	#--- src/sys/netinet/tcp_output.c 1995/12/05 17:46:35 1.17 RELENG_2_1_0
2403	# (bogus example, but...)
2404	#
2405	my ($f1, $f2);
2406	if (grep { $_ eq '-u' } @difftype) {
2407	$f1 = '---';
2408	$f2 = '\+\+\+';
2409	} else {
2410	$f1 = '\\\*';
2411	$f2 = '---';
2412	}
2413
2414	while (<$fh>) {
2415	if (m\|^$f1 $cvsroot\|o) {
2416	s\|$cvsroot/\|\|o;
2417	if ($sym1) {
2418	chop;
2419	$_ .= " $sym1\n";
2420	}
2421	} elsif (m\|^$f2 $cvsroot\|o) {
2422	s\|$cvsroot/\|\|o;
2423
2424	if ($sym2) {
2425	chop;
2426	$_ .= " $sym2\n";
2427	}
2428	}
2429	print $_;
2430	}
2431	close($fh);
2432	}
2433
2434
2435	###############################
2436	# Show Logs ..
2437	###############################
2438	sub getDirLogs($$@)
2439	{
2440	my ($cvsroot, $dirname, @otherFiles) = @_;
2441	my $tag = $input{only_with_tag};
2442	my $DirName = catdir($cvsroot, $where);
2443
2444	my @files = &safeglob("$DirName/*,v");
2445	push (@files, &safeglob("$DirName/Attic/*,v")) unless $input{hideattic};
2446	foreach my $file (@otherFiles) {
2447	push(@files, catfile($DirName, $file));
2448	}
2449
2450	# Weed out unreadable files.
2451	my $i = 0;
2452	my @unreadable = ();
2453	while ($i < scalar(@files)) {
2454	# Note: last modified files from subdirs returned by
2455	# findLastModifiedSubdirs() come without the ,v suffix so they're not
2456	# found here, but have already been checked for readability. cough
2457	if (-r $files[$i] \|\| !-e _) {
2458	$i++;
2459	} else {
2460	push(@unreadable, splice(@files, $i, 1));
2461	}
2462	}
2463
2464	# If there are no files, we're done.
2465	return @unreadable unless @files;
2466
2467	my @cmd = ($CMD{rlog});
2468	# Can't use -r<tag> as '-' is allowed in tagnames,
2469	# but misinterpreted by rlog.
2470	push(@cmd, '-r') unless defined($tag);
2471
2472	my $fh = do { local (*FH); };
2473	if (!open($fh, '-\|')) { # Child
2474	open(STDERR, '>', devnull()) unless $DEBUG; # Ignore rlog's complaints.
2475	openOutputFilter();
2476	if ($file_list_len && $file_list_len > 1) {
2477	while (scalar(@files) > $file_list_len) { # Process files in chunks.
2478	system(@cmd, splice(@files, 0, $file_list_len)) == 0 or exit -1;
2479	}
2480	}
2481	exec(@cmd, @files) or exit -1;
2482	}
2483	undef @cmd;
2484
2485	my $state = 'start';
2486	my ($date, $branchpoint, $branch, $log, @filetags);
2487	my ($rev, $revision, $revwanted, $filename, $head, $author, $keywordsubst);
2488
2489	while (<$fh>) {
2490	if ($state eq "start") {
2491
2492	#Next file. Initialize file variables
2493	$rev = '';
2494	$revwanted = '';
2495	$branch = '';
2496	$branchpoint = '';
2497	$filename = '';
2498	$log = '';
2499	$revision = '';
2500	%symrev = ();
2501	@filetags = ();
2502	$keywordsubst= '';
2503
2504	#jump to head state
2505	$state = "head";
2506	}
2507
2508	again:
2509
2510	if ($state eq "head") {
2511
2512	#$rcsfile = $1 if (/^RCS file: (.+)$/); #not used (yet)
2513
2514	if (/^Working file: (.+)$/) {
2515	$filename = $1;
2516	} elsif (/^head: (.+)$/) {
2517	$head = $1;
2518	} elsif (/^branch: (.+)$/) {
2519	$branch = $1;
2520	} elsif (/^keyword substitution: (.+)$/) {
2521	$keywordsubst = $1;
2522	} elsif (/^symbolic names:/) {
2523	$state = "tags";
2524	($branch = $head) =~ s/\.\d+$//
2525	if $branch eq '';
2526	$branch =~ s/(\d+)$/0.$1/;
2527	$symrev{MAIN} = $branch;
2528	$symrev{HEAD} = $branch;
2529	$alltags{MAIN} = 1;
2530	$alltags{HEAD} = 1;
2531	push (@filetags, "MAIN", "HEAD");
2532	} elsif ($_ =~ LOG_REVSEPR) {
2533	$state = "log";
2534	$rev = '';
2535	$date = '';
2536	$log = '';
2537
2538	# Try to reconstruct the relative filename if RCS spits out a full path
2539	$filename =~ s%^\Q$DirName\E/%%;
2540	}
2541	next;
2542	}
2543
2544	if ($state eq "tags") {
2545	if (/^\s+([^:]+):\s+([\d\.]+)\s*$/) {
2546	push (@filetags, $1);
2547	$symrev{$1} = $2;
2548	$alltags{$1} = 1;
2549	next;
2550	} elsif (/^\S/) {
2551
2552	if (defined($tag)) {
2553	if (defined($symrev{$tag}) \|\| $tag eq "HEAD") {
2554	$revwanted = $symrev{$tag eq "HEAD" ? "MAIN" : $tag};
2555	($branch = $revwanted) =~ s/\b0\.//;
2556	($branchpoint = $branch) =~ s/\.?\d+$//;
2557	$revwanted = '' if ($revwanted ne $branch);
2558	} elsif ($tag ne "HEAD") {
2559	$state = "skip";
2560	next;
2561	}
2562	}
2563
2564	foreach my $tagfound (@filetags) {
2565	$tags{$tagfound} = 1;
2566	}
2567	$state = "head";
2568	goto again;
2569	}
2570	}
2571
2572	if ($state eq "log") {
2573	if ($_ =~ LOG_REVSEPR \|\| $_ =~ LOG_FILESEPR) {
2574
2575	# End of a log entry.
2576	my $revbranch = $rev;
2577	$revbranch =~ s/\.\d+$//;
2578
2579	if ($revwanted eq '' && $branch ne '' && $branch eq $revbranch
2580	\|\| !defined($tag))
2581	{
2582	$revwanted = $rev;
2583	}
2584
2585	if ($revwanted ne ''
2586	? $rev eq $revwanted
2587	: $branchpoint ne ''
2588	? $rev eq $branchpoint
2589	: 0
2590	&& ($rev eq $head))
2591	{ # Don't think head is needed here..
2592	my @finfo = ($rev, $date, $log, $author, $filename, $keywordsubst);
2593	(my $name = $filename) =~ s%/.*%%;
2594	$fileinfo{$name} = [@finfo];
2595	$state = "done" if ($rev eq $revwanted);
2596	}
2597	$rev = '';
2598	$date = '';
2599	$log = '';
2600	} elsif ($date eq ''
2601	&& m\|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);\|)
2602	{
2603	my $yr = $1;
2604	$yr -= 1900 if ($yr > 100); # Damn 2-digit year routines :-)
2605	$date = timegm($6, $5, $4, $3, $2 - 1, $yr);
2606	($author) = /author: ([^;]+)/;
2607	$state = 'log';
2608	$log = '';
2609	next;
2610	} elsif ($rev eq '' && /^revision (\d+(?:\.\d+)+).*$/) {
2611	$rev = $1; # .*$ eats up the locker(lockers?) info, if any
2612	next;
2613	} else {
2614	$log .= $_;
2615	}
2616	}
2617
2618	if ($_ =~ LOG_FILESEPR) {
2619	$state = "start";
2620	next;
2621	}
2622	}
2623
2624	my $linesread = $. \|\| 0;
2625	close($fh);
2626
2627	if ($linesread == 0) {
2628	fatal('500 Internal Error',
2629	'Failed to spawn GNU rlog on <em>"%s"</em>.<br /><br />Did you set the <b><code>@command_path</code></b> in your configuration file correctly? (Currently: "<code>%s</code>")',
2630	htmlquote(join(', ', @files)), join(':', @command_path));
2631	}
2632
2633	return @unreadable;
2634	}
2635
2636
2637	sub readLog($;$)
2638	{
2639	my ($fullname, $revision) = @_;
2640	my ($symnames, $head, $rev, $br, $brp, $branch, $branchrev);
2641
2642	undef %symrev;
2643	undef %revsym;
2644	undef @allrevisions;
2645	undef %date;
2646	undef %author;
2647	undef %state;
2648	undef %difflines;
2649	undef %log;
2650	$keywordsubstitution = '';
2651
2652	my $fh = do { local (*FH); };
2653	if (!open($fh, "-\|")) { # child
2654	openOutputFilter();
2655	$revision = defined($revision) ? "-r$revision" : '';
2656	if ($revision =~ /\./) {
2657	# Normal revision, not a branch/tag name.
2658	exec($CMD{rlog}, $revision, $fullname) or exit -1;
2659	} else {
2660	exec($CMD{rlog}, $fullname) or exit -1;
2661	}
2662	}
2663
2664	my $curbranch = undef;
2665	while (<$fh>) {
2666	if ($symnames) {
2667	if (/^\s+([^:]+):\s+([\d\.]+)/) {
2668	$symrev{$1} = $2;
2669	next;
2670	} else {
2671	$symnames = 0;
2672	}
2673	}
2674	if (/^head:\s+([\d\.]+)/) {
2675	$head = $1;
2676	} elsif (/^branch:\s+([\d\.]+)/) {
2677	$curbranch = $1;
2678	} elsif (/^symbolic names/) {
2679	$symnames = 1;
2680	} elsif (/^keyword substitution: (.+)$/) {
2681	$keywordsubstitution = $1;
2682	} elsif (/^-----/) {
2683	last;
2684	}
2685	}
2686	($curbranch = $head) =~ s/\.\d+$// if (!defined($curbranch));
2687
2688	# each log entry is of the form:
2689	# ----------------------------
2690	# revision 3.7.1.1
2691	# date: 1995/11/29 22:15:52; author: fenner; state: Exp; lines: +5 -3
2692	# log info
2693	# ----------------------------
2694
2695	# For a locked revision, the first line after the separator
2696	# becomes smth like
2697	# revision 9.19 locked by: vassilii;
2698
2699	logentry:
2700
2701	while ($_ !~ LOG_FILESEPR) {
2702	$_ = <$fh>;
2703	last logentry if (!defined($_)); # EOF
2704	if (/^revision (\d+(?:\.\d+)+)/) {
2705	$rev = $1;
2706	unshift(@allrevisions, $rev);
2707	} elsif ($_ =~ LOG_FILESEPR \|\| $_ =~ LOG_REVSEPR) {
2708	next logentry;
2709	} else {
2710
2711	# The rlog output is syntactically ambiguous. We must
2712	# have guessed wrong about where the end of the last log
2713	# message was.
2714	# Since this is likely to happen when people put rlog output
2715	# in their commit messages, don't even bother keeping
2716	# these lines since we don't know what revision they go with
2717	# any more.
2718	next logentry;
2719	}
2720	$_ = <$fh>;
2721	if (
2722	m\|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);\s+author:\s+(\S+);\s+state:\s+(\S+);\s+(lines:\s+([0-9\s+-]+))?\|
2723	)
2724	{
2725	my $yr = $1;
2726	$yr -= 1900 if ($yr > 100); # Damn 2-digit year routines :-)
2727	$date{$rev} = timegm($6, $5, $4, $3, $2 - 1, $yr);
2728	$author{$rev} = $7;
2729	$state{$rev} = $8;
2730	$difflines{$rev} = $10;
2731	} else {
2732	fatal("500 Internal Error", 'Error parsing RCS output: %s', $_);
2733	}
2734
2735	line:
2736	while (<$fh>) {
2737	next line if (/^branches:\s/);
2738	last line if ($_ =~ LOG_FILESEPR \|\| $_ =~ LOG_REVSEPR);
2739	$log{$rev} .= $_;
2740	}
2741	}
2742	close($fh);
2743
2744	@revorder = reverse sort { revcmp($a, $b) } @allrevisions;
2745
2746	#
2747	# HEAD is an artificial tag which is simply the highest tag number on the main
2748	# branch, unless there is a branch tag in the RCS file in which case it's the
2749	# highest revision on that branch. Find it by looking through @revorder; it
2750	# is the first commit listed on the appropriate branch.
2751	# This is not neccesary the same revision as marked as head in the RCS file.
2752	my $headrev = $curbranch \|\| "1";
2753	($symrev{MAIN} = $headrev) =~ s/(\d+)$/0.$1/;
2754
2755	foreach $rev (@revorder) {
2756	if ($rev =~ /^(\S*)\.\d+$/ && $headrev eq $1) {
2757	$symrev{HEAD} = $rev;
2758	last;
2759	}
2760	}
2761	($symrev{HEAD} = $headrev) =~ s/\.\d+$// unless defined($symrev{HEAD});
2762
2763	#
2764	# Now that we know all of the revision numbers, we can associate
2765	# absolute revision numbers with all of the symbolic names, and
2766	# pass them to the form so that the same association doesn't have
2767	# to be built then.
2768	#
2769	undef @branchnames;
2770	undef %branchpoint;
2771	undef $sel;
2772
2773	foreach (reverse sort keys %symrev) {
2774	$rev = $symrev{$_};
2775	if ($rev =~ /^((.*)\.)?\b0\.(\d+)$/) {
2776	push (@branchnames, $_);
2777
2778	#
2779	# A revision number of A.B.0.D really translates into
2780	# "the highest current revision on branch A.B.D".
2781	#
2782	# If there is no branch A.B.D, then it translates into
2783	# the head A.B .
2784	#
2785	# This reasoning also applies to the main branch A.B,
2786	# with the branch number 0.A, with the exception that
2787	# it has no head to translate to if there is nothing on
2788	# the branch, but I guess this can never happen?
2789	#
2790	# (the code below gracefully forgets about the branch
2791	# if it should happen)
2792	#
2793	$head = defined($2) ? $2 : "";
2794	$branch = $3;
2795	$branchrev = $head . ($head ne "" ? "." : "") . $branch;
2796	$rev = $head;
2797
2798	my $regex = '^' . quotemeta($branchrev) . '\b';
2799	$regex = qr/$regex/;
2800
2801	foreach my $r (@revorder) {
2802	if ($r =~ $regex) {
2803	$rev = $branchrev;
2804	last;
2805	}
2806	}
2807	next if ($rev eq "");
2808
2809	if ($rev ne $head && $head ne "") {
2810	$branchpoint{$head} .= ', ' if ($branchpoint{$head});
2811	$branchpoint{$head} .= $_;
2812	}
2813	}
2814	$revsym{$rev} .= ", " if ($revsym{$rev});
2815	$revsym{$rev} .= $_;
2816	$sel .= sprintf("<option value=\"%s:%s\">%s</option>\n",
2817	htmlquote($rev), (htmlquote($_)) x 2);
2818	}
2819
2820	my ($onlyonbranch, $onlybranchpoint);
2821	if ($onlyonbranch = $input{only_with_tag}) {
2822	$onlyonbranch = $symrev{$onlyonbranch};
2823	if ($onlyonbranch && $onlyonbranch =~ s/\b0\.//) {
2824	($onlybranchpoint = $onlyonbranch) =~ s/\.\d+$//;
2825	} else {
2826	$onlybranchpoint = $onlyonbranch;
2827	}
2828
2829	if (!defined($onlyonbranch) \|\| $onlybranchpoint eq "") {
2830	fatal("404 Tag not found", 'Tag "<code>%s</code>" is not defined.',
2831	$input{only_with_tag});
2832	}
2833	}
2834
2835	undef @revisions;
2836
2837	foreach (@allrevisions) {
2838	($br = $_) =~ s/\.\d+$//;
2839	($brp = $br) =~ s/\.\d+$//;
2840	next if ($onlyonbranch
2841	&& $br ne $onlyonbranch
2842	&& $_ ne $onlybranchpoint);
2843	unshift(@revisions, $_);
2844	}
2845
2846	if ($logsort eq "date") {
2847
2848	# Sort the revisions in commit order an secondary sort on revision
2849	# (secondary sort needed for imported sources, or the first main
2850	# revision gets before the same revision on the 1.1.1 branch)
2851	@revdisplayorder =
2852	sort { $date{$b} <=> $date{$a} \|\| -revcmp($a, $b) } @revisions;
2853	} elsif ($logsort eq "rev") {
2854
2855	# Sort the revisions in revision order, highest first
2856	@revdisplayorder = reverse sort { revcmp($a, $b) } @revisions;
2857	} else {
2858
2859	# No sorting. Present in the same order as rlog / cvs log
2860	@revdisplayorder = @revisions;
2861	}
2862
2863	return $curbranch;
2864	}
2865
2866
2867	sub getDiffLinks($$$)
2868	{
2869	my ($url, $mimetype, $isbin) = @_;
2870
2871	my @links = ();
2872	if (!$isbin) { # Offer ordinary diff only for non-binary files.
2873	push(@links, &link('preferred', $url));
2874	for my $difftype ($DIFFTYPES{$defaultDiffType}{colored} ? qw(u) : qw(h)) {
2875	my $f = $difftype eq $defaultDiffType ? '' : $difftype;
2876	push(@links,
2877	&link(htmlquote(lc($DIFFTYPES{$difftype}{descr})), "$url;f=$f"));
2878	}
2879	}
2880	if (my $extdiffs = $DIFF_COMMANDS{lc($mimetype)}) {
2881	for my $i (0 .. scalar(@$extdiffs)-1) {
2882	my $extdiff = $extdiffs->[$i];
2883	push(@links, &link(htmlquote($extdiff->{name}), "$url;f=ext$i"))
2884	if ($extdiff->{cmd} && $extdiff->{name});
2885	}
2886	}
2887	return @links;
2888	}
2889
2890
2891	sub printLog($$$;$$)
2892	{
2893	# inlogview: 1 if in log view, otherwise in markup view.
2894	($_, my $mimetype, my $isbin, my $inlogview, my $isSelected) = @_;
2895	(my $br = $_) =~ s/\.\d+$//;
2896	(my $brp = $br) =~ s/\.?\d+$//;
2897
2898	print "<a name=\"rev$_\"></a>";
2899	if (defined($revsym{$_})) {
2900	foreach my $sym (split(", ", $revsym{$_})) {
2901	print '<a name="', htmlquote($sym), '"></a>';
2902	}
2903	}
2904	if ($revsym{$br} && !defined($nameprinted{$br})) {
2905	foreach my $sym (split(", ", $revsym{$br})) {
2906	print '<a name="', htmlquote($sym), '"></a>';
2907	}
2908	$nameprinted{$br} = 1;
2909	}
2910
2911	print "\n Revision <b>$_</b>";
2912	if (/^1\.1\.1\.\d+$/) {
2913	print " <i>(vendor branch)</i>";
2914	}
2915
2916	(my $filename = $where) =~ s\|^.*/\|\|;
2917	my $fileurl = uri_escape($filename);
2918	undef $filename;
2919
2920	my $isDead = ($state{$_} eq 'dead');
2921	if (!$isDead) {
2922
2923	print ': ', download_link($fileurl, $_, 'download', $mimetype);
2924
2925	my @vlinks = ();
2926	push(@vlinks, display_link($fileurl, $_, 'text', 'text/plain'))
2927	unless $isbin;
2928	push(@vlinks, display_link($fileurl, $_, 'markup', 'text/x-cvsweb-markup'))
2929	if ($allow_markup && $inlogview && (!$isbin \|\| viewable($mimetype)));
2930	if (!$isbin && $allow_annotate) {
2931	push(@vlinks,
2932	&link('annotated',
2933	sprintf('%s?annotate=%s%s', $fileurl, $_, $barequery)));
2934	}
2935	print ' - view: ', join(', ', @vlinks) if @vlinks;
2936	undef @vlinks;
2937
2938	if (!$isbin && $allow_version_select) {
2939	print ' - ';
2940	if ($isSelected) {
2941	print '<b>[selected for diffs]</b>';
2942	} else {
2943	print &link('select for diffs',
2944	sprintf('%s?r1=%s%s#rev%s',
2945	$fileurl, $_, $barequery, $_));
2946	}
2947	}
2948	print ' - ', graph_link('', 'revision graph')
2949	if (!$inlogview && $allow_cvsgraph);
2950	}
2951	print "<br />\n";
2952
2953	print '<i>';
2954	if (defined @mytz) {
2955	my ($est) = $mytz[(localtime($date{$_}))[8]];
2956	print scalar localtime($date{$_}), " $est</i> (";
2957	} else {
2958	print scalar gmtime($date{$_}), " UTC</i> (";
2959	}
2960	print readableTime(time() - $date{$_}, 1), ' ago)';
2961	print ' by <i>', htmlquote($author{$_}), "</i><br />\n";
2962
2963	printf("Branches: %s<br />\n", link_tags($revsym{$br})) if $revsym{$br};
2964	printf("CVS tags: %s<br />\n", link_tags($revsym{$_})) if $revsym{$_};
2965	printf("Branch point for: %s<br />\n", link_tags($branchpoint{$_}))
2966	if $branchpoint{$_};
2967
2968	# Find the previous revision
2969	my $prev;
2970	my @prevrev = split(/\./, $_);
2971	do {
2972	if (--$prevrev[$#prevrev] <= 0) {
2973
2974	# If it was X.Y.Z.1, just make it X.Y
2975	pop (@prevrev);
2976	pop (@prevrev);
2977	}
2978	$prev = join (".", @prevrev);
2979	} until (defined($date{$prev}) \|\| $prev eq "");
2980
2981	if ($isDead) {
2982	print "<b><i>FILE REMOVED</i></b><br />\n";
2983	} else {
2984	my %diffrev = ();
2985	$diffrev{$_} = 1;
2986	$diffrev{""} = 1;
2987	my $diff = 'Diff to:';
2988	my $printed = 0;
2989
2990	#
2991	# Offer diff to previous revision
2992	if ($prev) {
2993	$diffrev{$prev} = 1;
2994	my $url =
2995	sprintf('%s.diff?r1=%s;r2=%s%s', $fileurl, $prev, $_, $barequery);
2996	if (my @dlinks = getDiffLinks($url, $mimetype, $isbin)) {
2997	print $diff, ' previous ', $prev, ': ', join(', ', @dlinks);
2998	$diff = ';'; $printed = 1;
2999	}
3000	}
3001
3002	#
3003	# Plus, if it's on a branch, and it's not a vendor branch,
3004	# offer a diff with the branch point.
3005	if ($revsym{$brp}
3006	&& !/^1\.1\.1\.\d+$/
3007	&& !defined($diffrev{$brp}))
3008	{
3009	my $url =
3010	sprintf('%s.diff?r1=%s;r2=%s%s', $fileurl, $brp, $_, $barequery);
3011	if (my @dlinks = getDiffLinks($url, $mimetype, $isbin)) {
3012	print $diff, ' branchpoint ', $brp, ': ', join(', ', @dlinks);
3013	$diff = ';'; $printed = 1;
3014	}
3015	}
3016
3017	#
3018	# Plus, if it's on a branch, and it's not a vendor branch,
3019	# offer to diff with the next revision of the higher branch.
3020	# (e.g. change gets committed and then brought
3021	# over to -stable)
3022	if (/^\d+\.\d+\.\d+/ && !/^1\.1\.1\.\d+$/) {
3023	my ($i, $nextmain);
3024
3025	for ($i = 0; $i < $#revorder && $revorder[$i] ne $_; $i++) {
3026	}
3027	my @tmp2 = split(/\./, $_);
3028	for ($nextmain = ""; $i > 0; $i--) {
3029	my $next = $revorder[$i - 1];
3030	my @tmp1 = split(/\./, $next);
3031
3032	if (@tmp1 < @tmp2) {
3033	$nextmain = $next;
3034	last;
3035	}
3036
3037	# Only the highest version on a branch should have
3038	# a diff for the "next MAIN".
3039	last
3040	if (@tmp1 - 1 <= @tmp2
3041	&& join (".", @tmp1[0 .. $#tmp1 - 1]) eq
3042	join (".", @tmp2[0 .. $#tmp1 - 1]));
3043	}
3044
3045	if (!defined($diffrev{$nextmain})) {
3046	$diffrev{$nextmain} = 1;
3047	my $url = sprintf('%s.diff?r1=%s;r2=%s%s',
3048	$fileurl, $nextmain, $_, $barequery);
3049	if (my @dlinks = getDiffLinks($url, $mimetype, $isbin)) {
3050	print $diff, ' next MAIN ', $nextmain, ': ', join(', ', @dlinks);
3051	$diff = ';'; $printed = 1;
3052	}
3053	}
3054	}
3055
3056	# Plus if user has selected only r1, then present a link
3057	# to make a diff to that revision
3058	if (defined($input{r1}) && !defined($diffrev{$input{r1}})) {
3059	$diffrev{$input{r1}} = 1;
3060	my $url = sprintf('%s.diff?r1=%s;r2=%s%s',
3061	$fileurl, $input{r1}, $_, $barequery);
3062	if (my @dlinks = getDiffLinks($url, $mimetype, $isbin)) {
3063	print $diff, ' selected ', $input{r1}, ': ', join(', ', @dlinks);
3064	$diff = ';'; $printed = 1;
3065	}
3066	}
3067
3068	print "<br />\n" if $printed;
3069	}
3070
3071	if ($prev ne "" && $difflines{$_}) {
3072	printf "Changes since revision %s: %s lines<br />\n",
3073	htmlquote($prev), htmlquote($difflines{$_});
3074	}
3075
3076	print "<pre class=\"log\">\n";
3077	print &htmlify($log{$_}, $allow_log_extra);
3078	print "</pre>\n";
3079	}
3080
3081
3082	#
3083	# Generates the HTML view for CvsGraph.
3084	#
3085	sub doGraphView()
3086	{
3087	(my $pathname = $where) =~ s\|[^/]*$\|\|;
3088	(my $filename = $where) =~ s\|^.*/\|\|;
3089
3090	navigateHeader($scriptwhere, $pathname, $filename, undef, 'graph');
3091
3092	my $title = 'Revision graph of ' . htmlquote($pathname . $filename);
3093	my $mapname = 'CvsGraphMap';
3094
3095	printf(<<EOF, $title, $mapname, $cvstree, $title);
3096	<h3 style="text-align: center">%s</h3>
3097	<div style="text-align: center"><img border="0" usemap="#%s" src="?cvsroot=%s;graph=1;makeimage=1" alt="%s" />
3098	EOF
3099
3100	# Remove any pre-existing tag/branch names from branch links.
3101	(my $notag_query = $barequery) =~ s/;+only_with_tag=.*?(?=;\|$)//g;
3102
3103	my @graph_cmd =
3104	($CMD{cvsgraph},
3105	'-r', $cvsroot,
3106	'-m', $pathname,
3107	'-i',
3108	'-M', $mapname,
3109	'-x', 'x',
3110	"-Omap_branch_href=\"href=\\\"./?only_with_tag=%(%t%)$notag_query\\\"\"",
3111	"-Omap_rev_href=\"href=\\\"?rev=%(%R%)$barequery\\\"\"",
3112	"-Omap_diff_href=\"href=\\\"%(%F%).diff" .
3113	"?r1=%(%P%);r2=%(%R%)$barequery\\\"\"",
3114	);
3115	push(@graph_cmd, '-c', $cvsgraph_config) if $cvsgraph_config;
3116	push(@graph_cmd, $filename . ',v');
3117
3118	local *CVSGRAPH_OUT;
3119	my ($h, $err) =
3120	startproc(\@graph_cmd, \"", '>pipe', \*CVSGRAPH_OUT);
3121	fatal('500 Internal Error', $err) unless $h;
3122
3123	# Browser compatibility kludge: many browsers do not support client side
3124	# image maps where the <map> element contains only the id attribute. Let's
3125	# add the corresponding name attribute to it on the fly.
3126	while (<CVSGRAPH_OUT>) {
3127	s/(<map\s+id="([^"]+)")\s*>/$1 name="$2">/;
3128	print;
3129	}
3130
3131	$h->finish();
3132	print "</div>\n";
3133
3134	html_footer();
3135	}
3136
3137
3138	#
3139	# Generates a graph using CvsGraph.
3140	#
3141	sub doGraph()
3142	{
3143	(my $pathname = $where) =~ s\|[^/]*$\|\|;
3144	(my $filename = $where) =~ s\|^.*/\|\|;
3145
3146	http_header('image/png');
3147
3148	my @graph_cmd = ($CMD{cvsgraph}, '-r', $cvsroot, '-m', $pathname);
3149	push(@graph_cmd, '-c', $cvsgraph_config) if $cvsgraph_config;
3150	push(@graph_cmd, $filename . ',v');
3151
3152	local *CVSGRAPH_OUT;
3153	my ($h, $err) =
3154	startproc(\@graph_cmd, \"", '>pipe', \*CVSGRAPH_OUT);
3155	fatal('500 Internal Error', $err) unless $h;
3156	{
3157	local $/ = undef;
3158	binmode(\*STDOUT);
3159	print <CVSGRAPH_OUT>;
3160	}
3161	$h->finish();
3162	}
3163
3164
3165	sub doLog($)
3166	{
3167	my ($fullname) = @_;
3168
3169	my $curbranch = readLog($fullname);
3170
3171	html_header("CVS log for $where");
3172
3173	my $upwhere = $where;
3174	(my $filename = $where) =~ s\|^.*/\|\|;
3175	my $backurl = "./$query#" . uri_escape($filename);
3176	if ($where =~ m\|^(.*?)((?<=/)Attic/)?[^/]+$\|) {
3177	$upwhere = $1;
3178	$backurl = ".$backurl" if $2; # skip over Attic
3179	}
3180
3181	my $isbin = $keywordsubstitution =~ /b/;
3182	my $mimetype = getMimeType($filename, $isbin);
3183
3184	print "<p>\n ";
3185	print &link($backicon, $backurl), " <b>Up to ",
3186	&clickablePath($upwhere, 1), "</b>\n</p>\n";
3187	print "<p>\n ";
3188	print &link('Request diff between arbitrary revisions', '#diff');
3189	print ' - ', &graph_link('', 'Display revisions graphically')
3190	if $allow_cvsgraph;
3191	if ($cvshistory_url) {
3192	(my $d = $upwhere) =~ s\|/+$\|\|;
3193	print ' - ', history_link($d, $filename);
3194	}
3195	print "\n</p>\n<hr />\n";
3196
3197	print "<p>\n";
3198
3199	my $explain = $isbin ? ' (i.e.: CVS considers this a binary file)' : '';
3200	print "Keyword substitution: $keywordsubstitution$explain<br />\n";
3201	if ($curbranch) {
3202	print "Default branch: ", ($revsym{$curbranch} \|\| $curbranch);
3203	} else {
3204	print "No default branch";
3205	}
3206	print "<br />\n";
3207
3208	print 'Current tag: ', htmlquote($input{only_with_tag}), "<br />\n"
3209	if $input{only_with_tag};
3210	print "</p>\n";
3211
3212	undef %nameprinted;
3213
3214	for my $r (@revdisplayorder) {
3215	print "<hr />\n";
3216	my $sel = (defined($input{r1}) && $input{r1} eq $r);
3217	print "<div class=\"diff-selected\">\n" if $sel;
3218	printLog($r, $mimetype, $isbin, 1, $sel);
3219	print "</div>\n" if $sel;
3220	}
3221
3222	printf(<<EOF, $scriptwhere);
3223	<hr />
3224	<form method="get" action="%s.diff" id="diff_select">
3225	<fieldset>
3226	<legend>Diff request</legend>
3227	<p>
3228	<a name="diff">
3229	This form allows you to request diffs between any two revisions of a file.
3230	You may select a symbolic revision name using the selection box or you may
3231	type in a numeric name using the type-in text box.
3232	</a>
3233	</p>
3234	EOF
3235
3236	foreach (@stickyvars) {
3237	printf("<input type=\"hidden\" name=\"%s\" value=\"%s\" />\n",
3238	$_, htmlquote($input{$_}))
3239	if (defined($input{$_}) &&
3240	(!defined($DEFAULTVALUE{$_}) \|\| $input{$_} ne $DEFAULTVALUE{$_}));
3241	}
3242
3243	print <<EOF;
3244	<table summary="Diff between arbitrary revisions">
3245	<tr>
3246	<td class="opt-label">
3247	<label for="r1" accesskey="1">Diffs between</label>
3248	</td>
3249	<td class="opt-value">
3250	<select id="r1" name="r1">
3251	<option value="text" selected="selected">Use Text Field</option>
3252	EOF
3253	print $sel, "</select>\n";
3254
3255	my $diffrev = defined($input{r1}) ?
3256	$input{r1} : $revdisplayorder[$#revdisplayorder];
3257
3258	printf(<<EOF, $inputTextSize, $diffrev);
3259	<input type="text" size="%s" name="tr1" value="%s" onchange="this.form.r1.selectedIndex=0" />
3260	</td>
3261	<td></td>
3262	</tr>
3263	<tr>
3264	<td class="opt-label">
3265	<label for="r2" accesskey="2">and</label>
3266	</td>
3267	<td class="opt-value">
3268	<select id="r2" name="r2">
3269	<option value="text" selected="selected">Use Text Field</option>
3270	EOF
3271	print $sel, "</select>\n";
3272
3273	$diffrev = defined($input{r2}) ? $input{r2} : $revdisplayorder[0];
3274
3275	printf(<<EOF, $inputTextSize, $diffrev, $scriptwhere);
3276	<input type="text" size="%s" name="tr2" value="%s" onchange="this.form.r2.selectedIndex=0" />
3277	</td>
3278	<td><input type="submit" value="Get Diffs" accesskey="G" /></td>
3279	</tr>
3280	</table>
3281	</fieldset>
3282	</form>
3283	<form method="get" action="%s">
3284	<fieldset>
3285	<legend>Log view options</legend>
3286	<table summary="Log view options">
3287	<tr>
3288	<td class="opt-label">
3289	<label for="f" accesskey="D">Preferred diff type:</label>
3290	</td>
3291	<td class="opt-value">
3292	EOF
3293	printDiffSelect($use_java_script);
3294	print <<EOF;
3295	</td>
3296	<td></td>
3297	</tr>
3298	EOF
3299
3300	if (@branchnames) {
3301
3302	printf(<<EOF, $use_java_script ? ' onchange="this.form.submit()"' : '');
3303	<tr>
3304	<td class="opt-label">
3305	<label for="only_with_tag" accesskey="B">View only branch:</label>
3306	</td>
3307	<td class="opt-value">
3308	<a name="branch">
3309	<select id="only_with_tag" name="only_with_tag"%s>
3310	EOF
3311
3312	my @tmp = ();
3313	my $selfound = 0;
3314	foreach (reverse sort @branchnames) {
3315	my $selected =
3316	(defined($input{only_with_tag}) && $input{only_with_tag} eq $_);
3317	$selfound \|\|= $selected;
3318	push(@tmp, sprintf('<option%s>%s</option>',
3319	$selected ? ' selected="selected"' : '',
3320	htmlquote($_)));
3321	}
3322	printf("<option value=\"\"%s>Show all branches</option>\n",
3323	$selfound ? '' : ' selected="selected"');
3324	print join("\n", @tmp);
3325
3326	print <<EOF
3327	</select>
3328	</a>
3329	</td>
3330	<td></td>
3331	</tr>
3332	EOF
3333	}
3334
3335	print <<EOF;
3336	<tr>
3337	<td class="opt-label">
3338	<label for="logsort" accesskey="L">Sort log by:</label>
3339	</td>
3340	<td>
3341	EOF
3342	printLogSortSelect($use_java_script);
3343	print <<EOF;
3344	</td>
3345	<td><input type="submit" value="Set" accesskey="S" /></td>
3346	</tr>
3347	</table>
3348	EOF
3349	foreach (@stickyvars) {
3350	next if ($_ eq "f");
3351	next if ($_ eq "only_with_tag");
3352	next if ($_ eq "logsort");
3353	printf("<input type=\"hidden\" name=\"$_\" value=\"%s\" />\n",
3354	htmlquote($input{$_}))
3355	if (defined($input{$_})
3356	&& (!defined($DEFAULTVALUE{$_}) \|\| $input{$_} ne $DEFAULTVALUE{$_}));
3357	}
3358	print "</fieldset>\n</form>\n";
3359	html_footer();
3360	}
3361
3362
3363	sub flush_diff_rows($$$$)
3364	{
3365	my ($leftColRef, $rightColRef, $leftRow, $rightRow) = @_;
3366
3367	return unless defined($state);
3368
3369	if ($state eq "PreChangeRemove") { # we just got remove-lines before
3370	for (my $j = 0; $j < $leftRow; $j++) {
3371	printf(<<EOF, spacedHtmlText(@$leftColRef[$j]));
3372	<tr>
3373	<td class="diff diff-removed"> %s</td>
3374	<td class="diff diff-empty"> </td>
3375	</tr>
3376	EOF
3377	}
3378	} elsif ($state eq "PreChange") { # state eq "PreChange"
3379	# we got removes with subsequent adds
3380	if (HAS_EDIFF) {
3381	# construct the suffix tree
3382	my $left_diff = join("\n", @$leftColRef[0..$leftRow-1]);
3383	my $right_diff = join("\n", @$rightColRef[0..$rightRow-1]);
3384	my $diff_str = String::Ediff::ediff($left_diff, $right_diff);
3385
3386	my @diff_str = split(/ /, $diff_str);
3387	my $INFINITY = 10000000;
3388	push(@diff_str, ($INFINITY) x 8);
3389	my ($idx, $b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2) =
3390	(0, @diff_str[0..7]);
3391	my ($l_cul, $r_cul) = (0, 0);
3392	my ($ldx, $rdx) = (0, 0);
3393	my (@left_html, @right_html);
3394	for (my $j = 0; $j < $leftRow; $j++) {
3395	my $line_len = length(@$leftColRef[$j]);
3396	my $line = @$leftColRef[$j];
3397	$l_cul += length($line) + 1; # includes "\n"
3398	my $l_culx = $l_cul - 1; # not includes "\n"
3399	if ($j < $lb1) {
3400	$line = spacedHtmlText($line);
3401	push(@left_html, "<td class=\"diff diff-changed\">$line</td>");
3402	} elsif ($lb1 == $j) {
3403	my $html_line;
3404	while ($lb1 == $j) {
3405	my $begin_char = $l_culx - $b1;
3406
3407	$line =~ /^(.*)(.{$begin_char})$/;
3408	$html_line .= spacedHtmlText($1) .
3409	'</span><span class="diff diff-unchanged">';
3410	$line = $2;
3411	last if ($j != $le1);
3412
3413	my $end_char = $l_culx - $e1;
3414	$line =~ /^(.*)(.{$end_char})$/;
3415	$html_line .= spacedHtmlText($1) .
3416	'</span><span class="diff diff-changed">';
3417	$line = $2;
3418
3419	$idx++;
3420	my ($tb1, $te1, $tlb1, $tle1, $tb2, $te2, $tlb2, $tle2) =
3421	($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2);
3422	($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2) =
3423	@diff_str[$idx8..($idx+1)8-1];
3424	$lb1 = $INFINITY if ($lb1 < 0);
3425	$lb2 = $INFINITY if ($lb2 < 0);
3426	$le1 = $INFINITY if ($le1 < 0);
3427	$le2 = $INFINITY if ($le2 < 0);
3428	if ($te1 > $b1) {
3429	($b1, $lb1) = ($te1, $tle1);
3430	}
3431	if ($te2 > $b2) {
3432	($b2, $lb2) = ($te2, $tle2);
3433	}
3434	}
3435	push(@left_html,
3436	sprintf('<td><span class="diff diff-changed">%s%s</span></td>',
3437	$html_line, spacedHtmlText($line)));
3438	} elsif ($le1 == $j) {
3439	my $html_line;
3440	while ($le1 == $j) {
3441	my $end_char = $l_culx - $e1;
3442	$line =~ /^(.*)(.{$end_char})$/;
3443	$html_line .= spacedHtmlText($1) .
3444	'</span><span class="diff diff-changed">';
3445	$line = $2;
3446
3447	$idx++;
3448	my ($tb1, $te1, $tlb1, $tle1, $tb2, $te2, $tlb2, $tle2) =
3449	($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2);
3450	($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2) =
3451	@diff_str[$idx8..($idx+1)8-1];
3452	$lb1 = $INFINITY if ($lb1 < 0);
3453	$lb2 = $INFINITY if ($lb2 < 0);
3454	$le1 = $INFINITY if ($le1 < 0);
3455	$le2 = $INFINITY if ($le2 < 0);
3456	if ($te1 > $b1) {
3457	($b1, $lb1) = ($te1, $tle1);
3458	}
3459	if ($te2 > $b2) {
3460	($b2, $lb2) = ($te2, $tle2);
3461	}
3462
3463	last if ($lb1 != $j);
3464
3465	my $begin_char = $l_culx - $b1;
3466
3467	$line =~ /^(.*)(.{$begin_char})$/;
3468	$html_line .= spacedHtmlText($1) .
3469	'</span><span class="diff diff-unchanged">';
3470	$line = $2;
3471	}
3472	push(@left_html,
3473	sprintf('<td><span class="diff diff-unchanged">%s%s</span></td>',
3474	$html_line, spacedHtmlText($line)));
3475	} else {
3476	$line = spacedHtmlText($line);
3477	push(@left_html, "<td class=\"diff diff-unchanged\">$line</td>");
3478	}
3479	}
3480	($idx, $b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2) =
3481	(0, @diff_str[0..7]);
3482	$lb1 = $INFINITY if ($lb1 < 0);
3483	$lb2 = $INFINITY if ($lb2 < 0);
3484	$le1 = $INFINITY if ($le1 < 0);
3485	$le2 = $INFINITY if ($le2 < 0);
3486	for (my $j = 0; $j < $rightRow; $j++) {
3487	my $line_len = length(@$rightColRef[$j]);
3488	my $line = @$rightColRef[$j];
3489	$r_cul += length($line) + 1; # includes "\n"
3490	my $r_culx = $r_cul - 1; # not includes "\n"
3491	if ($j < $lb2) {
3492	$line = spacedHtmlText($line);
3493	push(@right_html, "<td class=\"diff diff-changed\">$line</td>");
3494	} elsif ($lb2 == $j) {
3495	my $html_line;
3496	while ($lb2 == $j) {
3497	my $begin_char = $r_culx - $b2;
3498
3499	$line =~ /^(.*)(.{$begin_char})$/;
3500	$html_line .= spacedHtmlText($1) .
3501	'</span><span class="diff diff-unchanged">';
3502	$line = $2;
3503
3504	last if ($j != $le2);
3505
3506	my $end_char = $r_culx - $e2;
3507	$line =~ /^(.*)(.{$end_char})$/;
3508	$html_line .= spacedHtmlText($1) .
3509	'</span><span class="diff diff-changed">';
3510	$line = $2;
3511
3512	$idx++;
3513	my ($tb1, $te1, $tlb1, $tle1, $tb2, $te2, $tlb2, $tle2) =
3514	($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2);
3515	($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2) =
3516	@diff_str[$idx8..($idx+1)8-1];
3517	$lb1 = $INFINITY if ($lb1 < 0);
3518	$lb2 = $INFINITY if ($lb2 < 0);
3519	$le1 = $INFINITY if ($le1 < 0);
3520	$le2 = $INFINITY if ($le2 < 0);
3521	if ($te1 > $b1) {
3522	($b1, $lb1) = ($te1, $tle1);
3523	}
3524	if ($te2 > $b2) {
3525	($b2, $lb2) = ($te2, $tle2);
3526	}
3527	}
3528	push(@right_html,
3529	sprintf('<td><span class="diff diff-changed">%s%s</span></td>',
3530	$html_line, spacedHtmlText($line)));
3531	} elsif ($le2 == $j) {
3532	my $html_line;
3533	while ($le2 == $j) {
3534	my $end_char = $r_culx - $e2;
3535	$line =~ /^(.*)(.{$end_char})$/;
3536	$html_line .= spacedHtmlText($1) .
3537	'</span><span class="diff diff-changed">';
3538	$line = $2;
3539
3540	$idx++;
3541	my ($tb1, $te1, $tlb1, $tle1, $tb2, $te2, $tlb2, $tle2) =
3542	($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2);
3543	($b1, $e1, $lb1, $le1, $b2, $e2, $lb2, $le2) =
3544	@diff_str[$idx8..($idx+1)8-1];
3545	$lb1 = $INFINITY if ($lb1 < 0);
3546	$lb2 = $INFINITY if ($lb2 < 0);
3547	$le1 = $INFINITY if ($le1 < 0);
3548	$le2 = $INFINITY if ($le2 < 0);
3549	if ($te1 > $b1) {
3550	($b1, $lb1) = ($te1, $tle1);
3551	}
3552	if ($te2 > $b2) {
3553	($b2, $lb2) = ($te2, $tle2);
3554	}
3555
3556	last if ($lb2 != $j);
3557
3558	my $begin_char = $r_culx - $b2;
3559	$line =~ /^(.*)(.{$begin_char})$/;
3560	$html_line .= spacedHtmlText($1) .
3561	'</span><span class="diff diff-unchanged">';
3562	$line = $2;
3563	}
3564	push(@right_html,
3565	sprintf('<td nowrap="nowrap"><span class="diff diff-unchanged"'.
3566	'>%s%s</span></td>',
3567	$html_line, spacedHtmlText($line)));
3568	} else {
3569	$line = spacedHtmlText ($line);
3570	push @right_html, "<td class=\"diff diff-unchanged\">$line</td>";
3571	}
3572	}
3573	for (my $j = 0; $j < $leftRow \|\| $j < $rightRow ; $j++) { # dump out both cols
3574	print '<tr>';
3575	if ($j < $leftRow) {
3576	print $left_html[$j];
3577	} else {
3578	print '<td class="diff diff-changed-missing"> </td>';
3579	}
3580	if ($j < $rightRow) {
3581	print $right_html[$j];
3582	} else {
3583	print '<td class="diff diff-changed-missing"> </td>';
3584	}
3585	print "</tr>\n";
3586	}
3587	} else {
3588	for (my $j = 0; $j < $leftRow \|\| $j < $rightRow; $j++) { # dump both cols
3589	print "<tr>\n";
3590	if ($j < $leftRow) {
3591	print '<td class="diff diff-changed"> ' .
3592	spacedHtmlText(@$leftColRef[$j]) . '</td>';
3593	} else {
3594	print '<td class="diff diff-changed-missing"> </td>';
3595	}
3596	print "\n";
3597
3598	if ($j < $rightRow) {
3599	print '<td class="diff diff-changed"> ' .
3600	spacedHtmlText(@$rightColRef[$j]) . '</td>';
3601	} else {
3602	print '<td class="diff diff-changed-missing"> </td>';
3603	}
3604	print "\n</tr>\n";
3605	}
3606	}
3607	}
3608	}
3609
3610
3611	#
3612	# Generates "human readable", HTMLified diffs.
3613	#
3614	sub human_readable_diff($$)
3615	{
3616	my ($fh, $rev) = @_;
3617
3618	(my $where_nd = $where) =~ s\|\.diff$\|\|;
3619	(my $filename = $where_nd) =~ s\|^.*/\|\|;
3620	(my $pathname = $where_nd) =~ s\|((?<=/)Attic/)?[^/]*$\|\|;
3621	(my $scriptwhere_nd = $scriptwhere) =~ s\|\.diff$\|\|;
3622
3623	navigateHeader($scriptwhere_nd, $pathname, $filename, $rev, 'diff');
3624
3625	# Read header to pick up read revision and date, if possible.
3626
3627	my ($r1d, $r1r, $r2d, $r2r);
3628	while (<$fh>) {
3629	($r1d, $r1r) = /\t(.)\t(.)$/ if (/^--- /);
3630	($r2d, $r2r) = /\t(.)\t(.)$/ if (/^\+\+\+ /);
3631	last if (/^\+\+\+ /);
3632	}
3633
3634	my ($rev1, $date1);
3635	if (defined($r1r) && $r1r =~ /^(\d+\.)+\d+$/) {
3636	$rev1 = $r1r;
3637	$date1 = $r1d;
3638	}
3639	my ($rev2, $date2);
3640	if (defined($r2r) && $r2r =~ /^(\d+\.)+\d+$/) {
3641	$rev2 = $r2r;
3642	$date2 = $r2d;
3643	}
3644	$rev1 = $input{r1} unless defined($rev1);
3645	$rev1 = $input{tr1} if (defined($rev1) && $rev1 eq 'text');
3646	$rev1 = 'unknown-left' unless defined($rev1);
3647	$rev2 = $input{r2} unless defined($rev2);
3648	$rev2 = $input{tr2} if (defined($rev2) && $rev2 eq 'text');
3649	$rev2 = 'unknown-right' unless defined($rev2);
3650	$date1 = defined($date1) ? ', ' . htmlquote($date1) : '';
3651	$date2 = defined($date2) ? ', ' . htmlquote($date2) : '';
3652
3653	my $link = uri_escape($filename) . ($query ? "$query;" : '?');
3654
3655	# Using <table style=\"border: none\" here breaks NS 4.x badly...
3656	print <<EOF;
3657	<h3 style="text-align: center">Diff for /$where_nd between versions $rev1 and $rev2</h3>
3658	<table border="0" cellspacing="0" cellpadding="0" width="100%" summary="Diff output">
3659	<tr style="background-color: #ffffff">
3660	<th style="text-align: center; vertical-align: top" width="50%">
3661	<a href="${link}rev=$rev1">version $rev1</a>$date1
3662	</th>
3663	<th style="text-align: center; vertical-align: top" width="50%">
3664	<a href="${link}rev=$rev2">version $rev2</a>$date2
3665	</th>
3666	</tr>
3667	EOF
3668
3669	# Process diff text
3670	# prefetch several lines
3671	my @buf = head($fh);
3672	my %d = scan_directives(@buf);
3673
3674	my $leftRow = 0;
3675	my $rightRow = 0;
3676	my ($difftxt, @rightCol, @leftCol, $oldline, $newline, $funname);
3677
3678	$link .= 'content-type=text%2Fx-cvsweb-markup;';
3679	$link .= 'ln=1;' unless ($link =~ /\?.*\bln=1\b/);
3680
3681	while (@buf \|\| !eof($fh)) {
3682	$difftxt = @buf ? shift @buf : <$fh>;
3683
3684	if ($difftxt =~ /^@@/) {
3685	($oldline, $newline, $funname) =
3686	$difftxt =~ /@@ \-([0-9]+).\+([0-9]+).@@(.*)/;
3687	$funname = htmlquote($funname);
3688	$funname =~ s/\s/ /go;
3689	$funname &&= " <span style=\"font-size: smaller\">$funname</span>";
3690	my $ol = $oldline \|\| 1;
3691	my $nl = $newline \|\| 1;
3692
3693	print <<EOF;
3694	<tr>
3695	<td width="50%" class="diff-heading">
3696	<b><a href="${link}rev=$rev1#l$ol">Line $oldline</a></b>$funname
3697	</td>
3698	<td width="50%" class="diff-heading">
3699	<b><a href="${link}rev=$rev2#l$nl">Line $newline</a></b>$funname
3700	</td>
3701	</tr>
3702	EOF
3703
3704	$state = "dump";
3705	$leftRow = 0;
3706	$rightRow = 0;
3707	} else {
3708	my ($diffcode, $rest) = $difftxt =~ /^([-+ ])(.*)/;
3709	$diffcode = '' unless defined($diffcode);
3710	$_ = $rest;
3711
3712	#########
3713	# little state machine to parse unified-diff output (Hen, zeller@think.de)
3714	# in order to get some nice 'ediff'-mode output
3715	# states:
3716	# "dump" - just dump the value
3717	# "PreChangeRemove" - we began with '-' .. so this could be the start of a 'change' area or just remove
3718	# "PreChange" - okey, we got several '-' lines and moved to '+' lines -> this is a change block
3719	##########
3720
3721	if ($diffcode eq '+') {
3722	if ($state eq "dump")
3723	{ # 'change' never begins with '+': just dump out value
3724	$_ = spacedHtmlText($rest, $d{tabstop});
3725	printf(<<EOF, $_);
3726	<tr>
3727	<td class="diff diff-empty"> </td>
3728	<td class="diff diff-added"> %s</td>
3729	</tr>
3730	EOF
3731	} else { # we got minus before
3732	$state = "PreChange";
3733	$rightCol[$rightRow++] = $_;
3734	}
3735	} elsif ($diffcode eq '-') {
3736	$state = "PreChangeRemove";
3737	$leftCol[$leftRow++] = $_;
3738	} else { # empty diffcode
3739	flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
3740	$_ = spacedHtmlText($rest, $d{tabstop});
3741	printf(<<EOF, $_, $_);
3742	<tr>
3743	<td class="diff diff-same"> %s</td>
3744	<td class="diff diff-same"> %s</td>
3745	</tr>
3746	EOF
3747	$state = "dump";
3748	$leftRow = 0;
3749	$rightRow = 0;
3750	}
3751	}
3752	}
3753	close($fh);
3754
3755	flush_diff_rows \@leftCol, \@rightCol, $leftRow, $rightRow;
3756
3757	# state is empty if we didn't have any change
3758	if (!$state) {
3759	print <<EOF;
3760	<tr>
3761	<td colspan="2"> </td>
3762	</tr>
3763	<tr class="diff diff-empty">
3764	<td colspan="2" align="center"><b>- No viewable change -</b></td>
3765	</tr>
3766	EOF
3767	}
3768
3769	printf(<<EOF, $scriptwhere);
3770	</table>
3771	<hr style="width: 100%%" />
3772	<form method="get" action="%s">
3773	<div style="float: left">
3774	<label for="f">Diff format:<br />
3775	EOF
3776	printDiffSelectStickyVars();
3777	printDiffSelect($use_java_script);
3778	printf(<<EOF, $rev1, $rev2);
3779	</label>
3780	<input type="submit" value="Show" />
3781	</div>
3782	<table style="float: right; border: thin outset" cellspacing="0" cellpadding="1" title="Legend" summary="Legend">
3783	<tr>
3784	<td align="center" class="diff diff-removed">Removed from v.%s</td>
3785	<td class="diff diff-empty"> </td>
3786	</tr><tr class="diff diff-changed">
3787	<td align="center" colspan="2">changed lines</td>
3788	</tr><tr>
3789	<td class="diff diff-empty"> </td>
3790	<td align="center" class="diff diff-added">Added in v.%s</td>
3791	</tr>
3792	</table>
3793	</form>
3794	<br clear="all" />
3795	EOF
3796	}
3797
3798
3799	sub doEnscript($$$;$)
3800	{
3801	my ($filehandle, $highlight, $linenumbers, $lang) = @_;
3802	$lang \|\|= 'cvsweb';
3803
3804	my @cmd = ($CMD{enscript},
3805	@enscript_options,
3806	'-q', "--language=$lang", '-o', '-', "--highlight=$highlight");
3807
3808	local *ENSCRIPT_OUT;
3809	my ($h, $err) =
3810	startproc(\@cmd, $filehandle, '>pipe', \*ENSCRIPT_OUT);
3811	fatal('500 Internal Error', $err) unless $h;
3812
3813	# We could short-circuit and have enscript output directly to STDOUT above,
3814	# but that doesn't work with mod_perl (at least some 1.99 versions).
3815	if ($linenumbers) {
3816	my $ln = 0;
3817	while (<ENSCRIPT_OUT>) {
3818	printf '<a id="l%d" class="src">%5d: </a>', (++$ln) x 2;
3819	print $_;
3820	}
3821	} else {
3822	local $/ = undef;
3823	print <ENSCRIPT_OUT>;
3824	}
3825	$h->finish();
3826	}
3827
3828
3829	#
3830	# The passed in $path and $filename should not be URI escaped, and $swhere
3831	# should be.
3832	#
3833	sub navigateHeader($$$$$;$)
3834	{
3835	my ($swhere, $path, $filename, $rev, $title, $moddate) = @_;
3836	$swhere = "" if ($swhere eq $scriptwhere);
3837	$swhere = './' . uri_escape($filename) if ($swhere eq "");
3838
3839	my $qfile = htmlquote($filename);
3840	my $qpath = htmlquote($path);
3841	my $trev = $rev ? " - " . htmlquote($rev) : '';
3842
3843	http_header('', $moddate);
3844
3845	print <<EOF;
3846	$HTML_DOCTYPE
3847	<html>
3848	<head>
3849	<title>$qpath$qfile - $title$trev</title>
3850	$HTML_META$CSS</head>
3851	<body class="src">
3852	<table class="navigate-header" width="100%" summary="Navigation">
3853	<tr>
3854	<td>
3855	EOF
3856
3857	my $frag = '';
3858	if ($rev) {
3859	$frag = '#';
3860	$frag .= 'rev' if ($rev =~ /\./); # Normal revision: prefix with "rev".
3861	$frag .= $rev; # Append revision/branch/tag.
3862	}
3863	my $backurl = "$swhere$query$frag";
3864
3865	print &link($backicon, $backurl);
3866	printf '<b>Return to %s CVS log', &link($qfile, $backurl);
3867	print "</b> $fileicon</td>";
3868
3869	printf(<<EOF, $diricon, &clickablePath($path, 1));
3870	<td style="text-align: right">%s <b>Up to %s</b></td>
3871	</tr>
3872	</table>
3873	EOF
3874	}
3875
3876
3877	sub plural_write($$)
3878	{
3879	my ($num, $text) = @_;
3880	if ($num != 1) {
3881	$text .= "s";
3882	}
3883
3884	if ($num > 0) {
3885	return join (' ', $num, $text);
3886	} else {
3887	return "";
3888	}
3889	}
3890
3891
3892	##
3893	# print readable timestamp in terms of
3894	# '..time ago'
3895	# H. Zeller <zeller@think.de>
3896	##
3897	sub readableTime($$)
3898	{
3899	my ($secs, $long) = @_;
3900
3901	# This function works correctly for time >= 2 seconds.
3902	return 'very little time' if ($secs < 2);
3903
3904	my %desc = (
3905	1 => 'second',
3906	60 => 'minute',
3907	3600 => 'hour',
3908	86400 => 'day',
3909	604800 => 'week',
3910	2628000 => 'month',
3911	31536000 => 'year'
3912	);
3913
3914	my @breaks = sort { $a <=> $b } keys %desc;
3915	my $i = 0;
3916
3917	while ($i <= $#breaks && $secs >= 2 * $breaks[$i]) {
3918	$i++;
3919	}
3920	$i--;
3921	my $break = $breaks[$i];
3922	my $retval = plural_write(int($secs / $break), $desc{$break});
3923
3924	if ($long == 1 && $i > 0) {
3925	my $rest = $secs % $break;
3926	$i--;
3927	$break = $breaks[$i];
3928	my $resttime = plural_write(int($rest / $break), $desc{$break});
3929	if ($resttime) {
3930	$retval .= ", $resttime";
3931	}
3932	}
3933
3934	return $retval;
3935	}
3936
3937
3938	#
3939	# Returns a htmlified path where each directory is a link for faster
3940	# navigation. $clickLast controls whether the basename
3941	# (last directory/file) is a link as well. The passed in $pathname should
3942	# not be URI escaped.
3943	#
3944	sub clickablePath($$)
3945	{
3946	my ($pathname, $clickLast) = @_;
3947
3948	my $root = '[' . htmlquote($CVSROOTdescr{$cvstree} \|\| $cvstree) . ']';
3949
3950	# This should never happen (see chooseCVSRoot()), but let's be sure...
3951	return $root if ($pathname eq '/');
3952
3953	my $retval =
3954	' ' . &link($root, sprintf('%s/%s#dirlist', $scriptname, $query));
3955	my $wherepath = '';
3956	my ($lastslash) = $pathname =~ m\|/$\|;
3957
3958	foreach (split(m\|/\|, $pathname)) {
3959	$retval .= ' / ';
3960	$wherepath .= "/$_";
3961	my $last = "$wherepath/" eq "/$pathname" \|\| $wherepath eq "/$pathname";
3962
3963	if ($clickLast \|\| !$last) {
3964	$retval .= &link(htmlquote($_),
3965	join ('',
3966	$scriptname, uri_escape_path($wherepath),
3967	(!$last \|\| $lastslash ? '/' : ''), $query,
3968	(!$last \|\| $lastslash ? "#dirlist" : "")));
3969	} else { # do not make a link to the current dir
3970	$retval .= htmlquote($_);
3971	}
3972	}
3973	return $retval;
3974	}
3975
3976
3977	sub chooseCVSRoot()
3978	{
3979	print "<form method=\"get\" action=\"$scriptwhere\">\n<p>\n";
3980	if (2 <= @CVSROOT) {
3981	foreach my $k (keys %input) {
3982	printf("<input type=\"hidden\" name=\"%s\" value=\"%s\" />\n",
3983	htmlquote($k), htmlquote($input{$k}))
3984	if ($input{$k} && $k ne 'cvsroot');
3985	}
3986
3987	printf(<<EOF, $use_java_script ? ' onchange="this.form.submit()"' : '');
3988	<label for="cvsroot" accesskey="C">CVS Root:
3989	<select id="cvsroot" name="cvsroot"%s>
3990	EOF
3991
3992	foreach my $k (@CVSROOT) {
3993	printf("<option value=\"%s\"%s>%s</option>\n",
3994	htmlquote($k),
3995	($k eq $cvstree) ? ' selected="selected"' : '',
3996	htmlquote($CVSROOTdescr{$k} \|\| $k));
3997	}
3998	print '</select></label>';
3999	} else {
4000
4001	# no choice -- but we need the form to select module/path,
4002	# at least for Netscape
4003	printf "CVS Root: <b>[%s]</b>",
4004	htmlquote($CVSROOTdescr{$cvstree} \|\| $cvstree);
4005	}
4006
4007	print <<EOF;
4008	<label for="mpath" accesskey="M">
4009	Module path or alias:
4010	<input type="text" id="mpath" name="path" value="" size="15" />
4011	</label>
4012	<input type="submit" value="Go" accesskey="O" />
4013	</p>
4014	</form>
4015	EOF
4016	}
4017
4018
4019	sub chooseMirror()
4020	{
4021	# This code comes from the original BSD-cvsweb
4022	# and may not be useful for your site; If you don't
4023	# set %MIRRORS this won't show up, anyway.
4024	scalar(%MIRRORS) or return;
4025
4026	# Should perhaps exclude the current site somehow...
4027	print "\n<p>\nThis CVSweb is mirrored in\n";
4028
4029	my @tmp = map(&link(htmlquote($_), $MIRRORS{$_}), sort keys %MIRRORS);
4030	my $tmp = pop (@tmp);
4031
4032	if (scalar(@tmp)) {
4033	print join (', ', @tmp), ' and ';
4034	}
4035
4036	print "$tmp.\n</p>\n";
4037	}
4038
4039
4040	sub fileSortCmp()
4041	{
4042	(my $af = $a) =~ s/,v$//;
4043	(my $bf = $b) =~ s/,v$//;
4044	my ($rev1, $date1, $log1, $author1, $filename1) = @{$fileinfo{$af}}
4045	if (defined($fileinfo{$af}));
4046	my ($rev2, $date2, $log2, $author2, $filename2) = @{$fileinfo{$bf}}
4047	if (defined($fileinfo{$bf}));
4048
4049	my $comp = 0;
4050	if (defined($filename1) && defined($filename2) &&
4051	$af eq $filename1 && $bf eq $filename2)
4052	{
4053
4054	# Two files
4055	$comp = -revcmp($rev1, $rev2) if ($byrev && $rev1 && $rev2);
4056	$comp = ($date2 <=> $date1) if ($bydate && $date1 && $date2);
4057	if ($input{ignorecase}) {
4058	$comp = (uc($log1) cmp uc($log2)) if ($bylog && $log1 && $log2);
4059	$comp = (uc($author1) cmp uc($author2)) if ($byauthor &&
4060	$author1 && $author2);
4061	} else {
4062	$comp = ($log1 cmp $log2) if ($bylog && $log1 && $log2);
4063	$comp = ($author1 cmp $author2) if ($byauthor &&
4064	$author1 && $author2);
4065	}
4066	}
4067
4068	if ($comp == 0) {
4069
4070	# Directories first, then files under version control,
4071	# then other, "rogue" files.
4072	# Sort by filename if no other criteria available.
4073
4074	my $ad = (
4075	(-d "$fullname/$a")
4076	? 'D'
4077	: (defined($fileinfo{$af}) ? 'F' : 'R')
4078	);
4079	my $bd = (
4080	(-d "$fullname/$b")
4081	? 'D'
4082	: (defined($fileinfo{$bf}) ? 'F' : 'R')
4083	);
4084	(my $c = $a) =~ s\|.*/\|\|;
4085	(my $d = $b) =~ s\|.*/\|\|;
4086
4087	my ($l, $r) = ("$ad$c", "$bd$d");
4088	$comp = $input{ignorecase} ? (uc($l) cmp uc($r)) : ($l cmp $r);
4089
4090	# Parent dir is always first, then Attic.
4091	if ($comp != 0) {
4092	if ($l eq 'D..') {
4093	$comp = -1;
4094	} elsif ($r eq 'D..') {
4095	$comp = 1;
4096	} elsif ($l eq 'DAttic') {
4097	$comp = -1;
4098	} elsif ($r eq 'DAttic') {
4099	$comp = 1;
4100	}
4101	}
4102	}
4103	return $comp;
4104	}
4105
4106	#
4107	# Returns a URL to download the selected revision.
4108	# Expects the passed in URL to be URI escaped, relative, and without a query
4109	# string.
4110	#
4111	sub download_url($$;$)
4112	{
4113	my ($url, $revision, $mimetype) = @_;
4114	my @dots = $revision =~ /\./g;
4115	$revision =~ s/\b0\.(?=\d+$)// if (scalar(@dots) & 1);
4116
4117	if (!defined($mimetype) \|\| $mimetype !~ CVSWEBMARKUP) {
4118	my $path = $where;
4119	$path =~ s\|[^/]+$\|\|;
4120	$url = "$scriptname/$CheckoutMagic/$path$url";
4121	}
4122	$url .= '?rev=' . uri_escape($revision);
4123	$url .= ';content-type=' . uri_escape($mimetype) if $mimetype;
4124
4125	return $url;
4126	}
4127
4128	#
4129	# Returns a link to download the selected revision.
4130	# Expects the passed in URL to be URI escaped, relative,
4131	# and without a query string.
4132	#
4133	sub download_link($$$;$)
4134	{
4135	my ($url, $revision, $textlink, $mimetype) = @_;
4136	return sprintf('<a href="%s" class="download-link">%s</a>',
4137	download_url($url, $revision, $mimetype) . $barequery,
4138	htmlquote($textlink));
4139	}
4140
4141	#
4142	# Returns a URL to display the selected revision.
4143	# Expects the passed in URL to be URI escaped, and without a query string.
4144	#
4145	sub display_url($$;$)
4146	{
4147	my ($url, $revision, $mimetype) = @_;
4148	$url .= '?rev=' . uri_escape($revision);
4149	$url .= ';content-type=' . uri_escape($mimetype) if $mimetype;
4150	return $url;
4151	}
4152
4153	#
4154	# Returns a link to display the selected revision.
4155	# Expects the passed in URL to be URI escaped, and without a query string.
4156	#
4157	sub display_link($$;$$)
4158	{
4159	my ($url, $revision, $textlink, $mtype) = @_;
4160	$textlink = $revision unless defined($textlink);
4161	return sprintf('<a href="%s" class="display-link">%s</a>',
4162	display_url($url, $revision, $mtype) . $barequery,
4163	htmlquote($textlink));
4164	}
4165
4166	#
4167	# Expects the passed in URL to be URI escaped, and without a query string.
4168	# The passed in link text should be already HTML escaped as appropriate.
4169	#
4170	sub graph_link($;$)
4171	{
4172	my ($url, $text) = @_;
4173	$text \|\|= $graphicon;
4174	return sprintf('<a href="%s?graph=1%s">%s</a>', $url, $barequery, $text);
4175	}
4176
4177	#
4178	# Returns a link to CVSHistory for the given directory and filename.
4179	#
4180	sub history_link($$;$)
4181	{
4182	my ($dir, $file, $text) = @_;
4183	$dir \|\|= '';
4184	$file \|\|= '';
4185	$text \|\|= 'History';
4186	return &link($text,
4187	sprintf('%s?cvsroot=%s;dsearch=%s;fsearch=%s;limit=1',
4188	$cvshistory_url, uri_escape($input{cvsroot} \|\| ''),
4189	uri_escape($dir), uri_escape($file)));
4190	}
4191
4192	# Returns a Query string with the
4193	# specified parameter toggled
4194	sub toggleQuery($;$)
4195	{
4196	my ($toggle, $value) = @_;
4197
4198	my %vars = %input;
4199
4200	if (defined($value)) {
4201	$vars{$toggle} = $value;
4202	} else {
4203	$vars{$toggle} = $vars{$toggle} ? 0 : 1;
4204	}
4205
4206	# Build a new query of non-default paramenters
4207	my $newquery = "";
4208	foreach my $var (@stickyvars) {
4209	my ($value) = defined($vars{$var}) ? $vars{$var} : "";
4210	my ($default) = defined($DEFAULTVALUE{$var}) ? $DEFAULTVALUE{$var} : "";
4211
4212	if ($value ne $default) {
4213	$newquery .= ';' if ($newquery ne "");
4214	$newquery .= uri_escape($var) . '=' . uri_escape($value);
4215	}
4216	}
4217
4218	if ($newquery) {
4219	return '?' . $newquery;
4220	}
4221	return "";
4222	}
4223
4224	sub htmlquote($)
4225	{
4226	local ($_) = @_;
4227	# Special Characters; RFC 1866
4228	s/&/&/g;
4229	s/\"/"/g;
4230	s/</</g;
4231	s/>/>/g;
4232	return $_;
4233	}
4234
4235	sub htmlunquote($)
4236	{
4237	local ($_) = @_;
4238	# Special Characters; RFC 1866
4239	s/"/\"/g;
4240	s/</</g;
4241	s/>/>/g;
4242	s/&/&/g;
4243	return $_;
4244	}
4245
4246	sub uri_escape_path($)
4247	{
4248	return join('/', map(uri_escape($_), split(m\|/+\|, shift, -1)));
4249	}
4250
4251	sub http_header(;$$)
4252	{
4253	my ($content_type, $moddate) = @_;
4254	$content_type \|\|= 'text/html';
4255
4256	$content_type .= "; charset=$charset"
4257	if ($charset && $content_type =~ m,^text/,);
4258
4259	# Note that in the following, we explicitly join() and concatenate the
4260	# headers instead of printing them as an array. This is because some
4261	# systems, eg. early versions of mod_perl 2 don't quite get it if the
4262	# last \r\n\r\n isn't included in the last "payload" header print().
4263
4264	my @headers = ();
4265	# TODO: ctime(3) from scalar gmtime() isn't HTTP compliant, see HTTP::Date.
4266	push(@headers, 'Last-Modified: ' . scalar gmtime($moddate) . ' GMT')
4267	if $moddate;
4268	push(@headers, 'Content-Type: ' . $content_type);
4269
4270	if ($allow_compress && $maycompress) {
4271	if (HAS_ZLIB
4272	\|\| (defined($CMD{gzip}) && open(GZIP, "\| $CMD{gzip} -1 -c")))
4273	{
4274
4275	push(@headers, 'Content-Encoding: x-gzip');
4276	push(@headers, 'Vary: Accept-Encoding'); # RFC 2616, 14.44
4277	print join("\r\n", @headers) . "\r\n\r\n";
4278
4279	$\| = 1;
4280	$\| = 0; # Flush header output.
4281
4282	tie(GZIP, __PACKAGE__, \STDOUT) if HAS_ZLIB;
4283	select(GZIP);
4284	$gzip_open = 1;
4285
4286	} else {
4287
4288	print join("\r\n", @headers) . "\r\n\r\n";
4289	printf
4290	'<span style="font-size: smaller">Unable to find gzip binary in the <b>$command_path</b> (<code>%s</code>) to compress output</span><br />',
4291	htmlquote(join(':', @command_path));
4292	}
4293
4294	} else {
4295	print join("\r\n", @headers) . "\r\n\r\n";
4296	}
4297	}
4298
4299
4300	sub html_header($;$)
4301	{
4302	my ($title, $moddate) = @_;
4303	$title = htmlquote($title);
4304	my $l = $logo \|\| '';
4305	my $css = $CSS \|\| '';
4306	http_header('text/html', $moddate);
4307	print <<EOH;
4308	$HTML_DOCTYPE
4309	<html>
4310	<head>
4311	<title>$title</title>
4312	$HTML_META$css</head>
4313	<body>
4314	$l <h1>$title</h1>
4315	EOH
4316	}
4317
4318	sub html_footer()
4319	{
4320	print "<hr />\n<address>$address</address>\n" if $address;
4321	print "</body>\n</html>\n";
4322	}
4323
4324	sub link_tags($)
4325	{
4326	my ($tags) = @_;
4327
4328	(my $filename = $where) =~ s\|^.*/\|\|;
4329	my $fileurl = './' . uri_escape($filename);
4330
4331	my $ret = "";
4332	foreach my $sym (split(", ", $tags)) {
4333	$ret .= ",\n" if ($ret ne "");
4334	$ret .= &link(htmlquote($sym),
4335	$fileurl . toggleQuery('only_with_tag', $sym));
4336	}
4337	return $ret;
4338	}
4339
4340
4341	#
4342	# See if a file/dir is listed in the config file's @ForbiddenFiles list.
4343	# Takes a full file system path or one relative to $cvsroot, and strips the
4344	# trailing ",v" if present, then compares. Returns 1 if forbidden, else 0.
4345	#
4346	sub forbidden($)
4347	{
4348	(my $path = canonpath(shift)) =~ s/,v$//;
4349	$path =~ s\|^$cvsroot/+\|\|;
4350	for my $forbidden_re (@ForbiddenFiles) {
4351	return 1 if ($path =~ $forbidden_re);
4352	}
4353	return 0;
4354	}
4355
4356
4357	#
4358	# Starts a process using IPC::Run. All arguments are passed to
4359	# IPC::Run::start() as-is. Returns an array ($harness, $error) where
4360	# $harness is from IPC::Run if start() succeeds, undef otherwise. In case
4361	# of an error, $error contains the error message.
4362	#
4363	sub startproc(@)
4364	{
4365	my $h = my $err = undef;
4366	eval {
4367	local $SIG{__DIE__};
4368	$h = IPC::Run::start(@_) or die("return code: $?");
4369	};
4370	if ($@) {
4371	$h->finish() if $h;
4372	$h = undef;
4373	$err = "'@{$_[0]}' failed: $@";
4374	}
4375	return ($h, $err);
4376	}
4377
4378	#
4379	# Runs a process using IPC::Run. All arguments are passed to
4380	# IPC::Run::run() as-is. Returns an array ($exitcode, $errormsg).
4381	#
4382	sub runproc(@)
4383	{
4384	eval {
4385	local $SIG{__DIE__};
4386	IPC::Run::run(@_);
4387	};
4388	my $exitcode = $? >> 8;
4389	my $errormsg = undef;
4390	if ($@) {
4391	$exitcode \|\|= -1;
4392	$errormsg = "'@{$_[0]}' failed: $@";
4393	}
4394	return ($exitcode, $errormsg);
4395	}
4396
4397	#
4398	# Check out a file to a temporary file.
4399	#
4400	sub checkout_to_temp($$$)
4401	{
4402	my ($cvsroot, $cvsname, $rev) = @_;
4403
4404	# Pipe given cvs file into a temporary place.
4405	my ($temp_fh, $temp_fn) = tempfile('.cvsweb.XXXXXXXX', DIR => tmpdir());
4406
4407	my @cmd = ($CMD{cvs}, @cvs_options, '-Qd', $cvsroot,
4408	'co', '-p', "-r$rev", $cvsname);
4409
4410	local (*DIFF_OUT);
4411	my ($h, $err) = startproc(\@cmd, \"", '>pipe', \*DIFF_OUT);
4412	if ($h) {
4413	local $/ = undef;
4414	print $temp_fh <DIFF_OUT>;
4415	$h->finish();
4416	close($temp_fh);
4417	} else {
4418	close($temp_fh);
4419	unlink($temp_fn);
4420	fatal('500 Internal Error',
4421	'Checkout failure (exit status %s), output: <pre>%s</pre>',
4422	$? >> 8 \|\| -1, $err);
4423	}
4424
4425	return $temp_fn;
4426	}
4427
4428	#
4429	# Close the GZIP handle, and remove the tie.
4430	#
4431	sub gzipclose
4432	{
4433	if ($gzip_open) {
4434	select(STDOUT);
4435	close(GZIP);
4436	untie *GZIP;
4437	$gzip_open = 0;
4438	}
4439	}
4440
4441	# implement a gzipped file handle via the Compress:Zlib compression
4442	# library.
4443
4444	sub MAGIC1() { 0x1f }
4445	sub MAGIC2() { 0x8b }
4446	sub OSCODE() { 3 }
4447
4448	sub TIEHANDLE
4449	{
4450	my ($class, $out) = @_;
4451	my ($d) = Compress::Zlib::deflateInit(
4452	-Level => Compress::Zlib::Z_BEST_COMPRESSION(),
4453	-WindowBits => -Compress::Zlib::MAX_WBITS()
4454	)
4455	or return undef;
4456	my ($o) = { handle => $out,
4457	dh => $d,
4458	crc => 0,
4459	len => 0,
4460	};
4461	my ($header) = pack("c10",
4462	MAGIC1, MAGIC2, Compress::Zlib::Z_DEFLATED(),
4463	0, 0, 0, 0, 0, 0, OSCODE);
4464	print {$o->{handle}} $header;
4465	return bless($o, $class);
4466	}
4467
4468	sub PRINT
4469	{
4470	my ($o) = shift;
4471	my ($buf) = join (defined($,) ? $, : "", @_);
4472	my ($len) = length($buf);
4473	my ($compressed, $status) = $o->{dh}->deflate($buf);
4474	print {$o->{handle}} $compressed if defined($compressed);
4475	$o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
4476	$o->{len} += $len;
4477	return $len;
4478	}
4479
4480	sub PRINTF
4481	{
4482	my ($o) = shift;
4483	my ($fmt) = shift;
4484	my ($buf) = sprintf($fmt, @_);
4485	my ($len) = length($buf);
4486	my ($compressed, $status) = $o->{dh}->deflate($buf);
4487	print {$o->{handle}} $compressed if defined($compressed);
4488	$o->{crc} = Compress::Zlib::crc32($buf, $o->{crc});
4489	$o->{len} += $len;
4490	return $len;
4491	}
4492
4493	sub WRITE
4494	{
4495	my ($o, $buf, $len, $off) = @_;
4496	my ($compressed, $status) = $o->{dh}->deflate(substr($buf, 0, $len));
4497	print {$o->{handle}} $compressed if defined($compressed);
4498	$o->{crc} = Compress::Zlib::crc32(substr($buf, 0, $len), $o->{crc});
4499	$o->{len} += $len;
4500	return $len;
4501	}
4502
4503	sub CLOSE
4504	{
4505	my ($o) = @_;
4506	return if !defined($o->{dh});
4507	my ($buf) = $o->{dh}->flush();
4508	$buf .= pack("V V", $o->{crc}, $o->{len});
4509	print {$o->{handle}} $buf;
4510	undef $o->{dh};
4511	}
4512
4513	sub DESTROY
4514	{
4515	my ($o) = @_;
4516	CLOSE($o);
4517	}
4518
4519	# Local variables:
4520	# indent-tabs-mode: nil
4521	# cperl-indent-level: 2
4522	# End:

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