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abc_website @ 668

Revision 668, 21.3 kB (checked in by lincoln, 6 years ago)
additional bugfix for [667]
Property svn:executable set to ``*

Line
1	#!/usr/bin/perl -w
2
3	# ABC/ABC2 au_tv guide grabber - runs from "Shepherd" master grabber
4	# * written by ltd
5	# * uses ABC website for ABC or ABC2 data
6	# * when used in conjunction with Shepherd, shepherd can collect other channels
7	# using other grabbers
8	# * this does NOT use any config file - all settings are passed in from shepherd
9
10	# changelog:
11	# 1.50 22sep06 added support for "shepherd" master grabber script
12	# 1.51 02oct06 --ready option
13	# 1.52 03oct06 split out abc grabber into its own grabber
14	# 1.55 09oct06 formalize --cheap option
15	# 1.56 20oct06 misc cleanups
16	# 1.60 11nov06 fix midday time calculation
17	# 1.70 16nov06 also use "printable" TV guide to determine 'station close'
18	# 2.00 23nov06 simplified
19
20	use strict;
21
22	my $progname = "abc_website";
23	my $chan_id = "ABC";
24	my $version = "2.14";
25
26	use LWP::UserAgent;
27	use XMLTV;
28	use POSIX qw(strftime mktime);
29	use Getopt::Long;
30	use HTML::TreeBuilder;
31	use Data::Dumper;
32	use Storable;
33	use Shepherd::Common;
34
35	#
36	# constants
37	#
38	my $urls;
39	$urls->{station_close}->{ABC} = "http://www.abc.net.au/tv/guide/abctvweekguide.htm";
40	$urls->{station_close}->{ABC2} = "http://www.abc.net.au/tv/guide/abc2weekguide.htm";
41	$urls->{guide}->{ABC} = "http://www.abc.net.au/tv/guide/netw";
42	$urls->{guide}->{ABC2} = "http://www.abc.net.au/tv/guide/abc2";
43
44	#
45	# some initial cruft
46	#
47
48	my $script_start_time = time;
49	my %stats;
50	my $channels, my $opt_channels, my $gaps;
51	my $tv_guide;
52	my $data_cache;
53	my $override_settings = { };
54	my @station_close_data;
55	my $writer;
56	my %amp = ( nbsp => ' ', qw{ amp & lt < gt > apos ' quot " } );
57
58	my $ua;
59	$ua = LWP::UserAgent->new('timeout' => 30, 'keep_alive' => 30, 'agent' => "Shepherd / $progname $version");
60	$ua->env_proxy;
61	# $ua->cookie_jar({});
62	$ua->conn_cache(LWP::ConnCache->new());
63	$\| = 1;
64
65	#
66	# parse command line
67	#
68
69	my $opt_days = 7; # default
70	my $opt_offset = 0; # default
71	my $opt_timezone = "1000"; # default
72	my $opt_outputfile = $progname.".xmltv"; # default
73	my $opt_configfile = $progname.".conf"; # ignored
74	my $opt_cache_file = $progname.".storable.cache";
75	my $opt_old_cache_file = $progname.".cache";
76	my $opt_channels_file= "";
77	my $opt_gaps_file= "";
78	my $opt_no_cache = 0;
79	my $opt_cheap = 0;
80	my $opt_fast = 0;
81	my $opt_warper = 0;
82	my $opt_obfuscate = 0;
83	my $opt_do_extra_days = 0;
84	my $opt_set = "";
85	my $opt_help = 0;
86	my $opt_version = 0;
87	my $opt_desc = 0;
88	my $opt_dont_retry = 0;
89	my $debug = 0;
90	my $lang = "en";
91	my $region = 94;
92	my $time_offset = 0;
93
94	GetOptions(
95	'region=i' => \$region,
96	'days=i' => \$opt_days,
97	'offset=i' => \$opt_offset,
98	'timezone=s' => \$opt_timezone,
99	'channels_file=s' => \$opt_channels_file,
100	'gaps_file=s' => \$opt_gaps_file,
101	'output=s' => \$opt_outputfile,
102	'config-file=s' => \$opt_configfile,
103	'cache-file=s' => \$opt_cache_file,
104	'do-extra-days' => \$opt_do_extra_days,
105	'fast' => \$opt_fast,
106	'no-cache' => \$opt_no_cache,
107	'cheap' => \$opt_cheap,
108	'debug+' => \$debug,
109	'warper' => \$opt_warper,
110	'lang=s' => \$lang,
111	'obfuscate' => \$opt_obfuscate,
112	'no-retry' => \$opt_dont_retry,
113	'set=s' => \$opt_set,
114	'help' => \$opt_help,
115	'verbose' => \$opt_help,
116	'version' => \$opt_version,
117	'ready' => \$opt_version,
118	'desc' => \$opt_desc,
119	'v' => \$opt_help);
120
121	&help if ($opt_help);
122
123	if ($opt_version \|\| $opt_desc) {
124	printf "%s %s\n",$progname,$version;
125	printf "%s is a details-aware grabber that collects decent quality data using the ABC website for %s only.",$progname,$chan_id if $opt_desc;
126	exit(0);
127	}
128
129	&set_override if ($opt_set ne "");
130
131	die "no channel file specified, see --help for instructions\n", if ($opt_channels_file eq "");
132
133	#
134	# go go go!
135	#
136
137	my $starttime = time;
138	&read_cache if ($opt_no_cache == 0);
139
140	&log(sprintf "going to %s%s %s%d%s days%s of data into %s (%s%s)",
141	($opt_gaps_file ne "" ? "micro-gap " : ""),
142	($opt_cheap ? "verify (cache-validate)" : "grab"),
143	($opt_do_extra_days ? "somewhere between " : ""),
144	$opt_days,
145	($opt_do_extra_days ? " to 28" : ""),
146	($opt_offset ? " (skipping first $opt_offset days)" : ""),
147	$opt_outputfile,
148	($opt_no_cache ? "without caching" : "with caching"),
149	($opt_warper ? ", anonymously" : ""));
150
151	# read channels file
152	if (-r $opt_channels_file) {
153	local (@ARGV, $/) = ($opt_channels_file);
154	no warnings 'all'; eval <>; die "$@" if $@;
155	} else {
156	die "WARNING: channels file $opt_channels_file could not be read: $!\n";
157	}
158	die "nothing to do; $chan_id not in channels lineup!\n" if (!defined $channels->{$chan_id});
159
160	# if just filling in microgaps, parse gaps
161	if ($opt_gaps_file ne "") {
162	if (-r $opt_gaps_file) {
163	local (@ARGV, $/) = ($opt_gaps_file);
164	no warnings 'all'; eval <>; die "$@" if $@;
165	} else {
166	die "WARNING: gaps_file $opt_gaps_file could not be read: $!\n";
167	}
168	}
169
170	my %writer_args = ( encoding => 'ISO-8859-1' );
171	my $fh = new IO::File(">$opt_outputfile") \|\| die "can't open $opt_outputfile: $!";
172	$writer_args{OUTPUT} = $fh;
173
174	$writer = new XMLTV::Writer(%writer_args);
175	$writer->start( { 'source-info-name' => "$progname $version", 'generator-info-name' => "$progname $version"} );
176	$writer->write_channel( { 'display-name' => [[ $chan_id, $lang ]], 'id' => $channels->{$chan_id} } );
177
178	&get_station_close($channels->{$chan_id}, $urls->{station_close}->{$chan_id});
179	&get_abc_data($channels->{$chan_id}, $urls->{guide}->{$chan_id});
180	&write_cache if ($opt_no_cache == 0);
181
182	$writer->end;
183
184	&print_stats;
185	exit(0);
186
187	######################################################################################################
188	# help
189
190	sub help
191	{
192	print<<EOF
193	$progname $version
194
195	options are as follows:
196	--help show these help options
197	--days=N fetch 'n' days of data (default: $opt_days)
198	--output=file send xml output to file (default: "$opt_outputfile")
199	--config-file=file (ignored - historically used by grabbers not not this one)
200	--no-cache don't use a cache to optimize (reduce) number of web queries
201	--cheap validate contents of cache - fetch summary only, not details
202	--cache-file=file where to store cache (default "$opt_cache_file")
203	--fast don't run slow - get data as quick as you can - not recommended
204	--debug increase debug level
205	--warper fetch data using WebWarper web anonymizer service
206	--obfuscate pretend to be a proxy servicing multiple clients
207	--do-extra-days fetch extra (21 days) from ABC website
208	--no-retry if webserver is rejecting our request, don't retry (default: do retry)
209	--lang=[s] set language of xmltv output data (default $lang)
210
211	--region=N set region for where to collect data from (default: $region)
212	--channels_file=file where to get channel data from (if not set manually)
213	--timezone=HHMM timezone for channel data (default: $opt_timezone)
214
215	--set (option):(1/0) setting override options (1=enable, 0=disable)
216	do_extra_days:1/0 enable/disable fetching up to 24 days
217	fast:1/0 enable/disable extra-fast grab speed (not recommended)
218	debug:1/0 enable/disable debugging
219
220	EOF
221	;
222
223	exit(0);
224	}
225
226	######################################################################################################
227
228	sub set_override
229	{
230	&read_cache;
231	my ($setting, $val) = split(/:/,$opt_set);
232
233	die "--set format is (setting):(value) where value is 0 for disable, 1 for enable.\n"
234	if (($val ne "0") && ($val ne "1"));
235
236	die "unknown '--set' parameter '$setting', see --help for details.\n"
237	if (($setting ne "do_extra_days") &&
238	($setting ne "fast") &&
239	($setting ne "debug"));
240
241	$override_settings->{$setting} = $val;
242	printf "%s: override parameter %s: %s\n", $progname, $setting, ($val eq "0" ? "disabled" : "enabled");
243
244	&write_cache;
245	exit(0);
246	}
247
248	######################################################################################################
249	# populate cache
250
251	sub read_cache
252	{
253	if (-r $opt_cache_file) {
254	my $store = Storable::retrieve($opt_cache_file);
255	$data_cache = $store->{data_cache};
256	$override_settings = $store->{override_settings};
257
258	# apply settings overrides
259	$opt_do_extra_days = 1 if ((defined $override_settings->{do_extra_days}) && ($override_settings->{do_extra_days} == 1));
260	$opt_fast = 1 if ((defined $override_settings->{fast}) && ($override_settings->{fast} == 1));
261	$debug = 1 if ((defined $override_settings->{debug}) && ($override_settings->{debug} > 0));
262	} else {
263	printf "WARNING: no programme cache $opt_cache_file - have to fetch all details\n";
264
265	# try to write to it - if directory doesn't exist this will then cause an error
266	&write_cache;
267	}
268	}
269
270	######################################################################################################
271	# write out updated cache
272
273	sub write_cache
274	{
275	# cleanup old entries from cache
276	for my $cache_key (keys %{$data_cache}) {
277	my ($starttime, @rest) = split(/,/,$cache_key);
278	if ($starttime < (time-86400)) {
279	delete $data_cache->{$cache_key};
280	$stats{removed_items_from_cache}++;
281	}
282	}
283
284	my $store;
285	$store->{data_cache} = $data_cache;
286	$store->{override_settings} = $override_settings;
287	Storable::store($store, $opt_cache_file);
288	}
289
290	######################################################################################################
291
292	sub get_abc_data
293	{
294	my ($xmlid,$urlbase) = @_;
295	my $try_to_add_abc_detail;
296	my $unprocessed_programmes = 0;
297	my $stop_fetching = 0;
298	my @unprocessed_progname, my @unprocessed_starttime, my @unprocessed_url;
299
300	my $to_skip = $opt_offset;
301	my $daynum = 0;
302	my @gap_s, my @gap_e;
303
304	$opt_days = 28 if (($opt_do_extra_days) && ($opt_gaps_file eq "") && ($opt_offset == 0) && ($opt_days == 7));
305	my $days_left = $opt_days;
306
307	DAYS: while ($days_left > 0) {
308	my $currtime = $starttime + ($daynum * 86400);
309	$days_left--;
310	$daynum++;
311
312	if ($to_skip > 0) {
313	$to_skip--;
314	next;
315	}
316
317	if ($opt_gaps_file ne "") { # micro-gap mode!
318	my $found_gap_match = 0;
319
320	if ((defined $gaps) && (defined $gaps->{$chan_id})) {
321	foreach my $g (@{($gaps->{$chan_id})}) {
322	my ($s, $e) = split(/-/,$g);
323	if (($s >= $currtime) && ($s <= ($currtime+86400))) {
324	$found_gap_match++;
325	push(@gap_s,$s);
326	push(@gap_e,$e);
327	printf "including day %d channel '%s' gap start %d, gap end %d\n",
328	$daynum, $chan_id, $s, $e if $debug;
329	}
330	}
331	}
332	next if (!$found_gap_match); # no gaps for this day - skip!
333	}
334
335	my @timeattr = localtime($currtime); # 0=sec,1=min,2=hour,3=day,4=month,5=year,6=wday,7=yday,8=isdst
336	$timeattr[0] = 0; # zero seconds
337
338	my $url = sprintf "%s/%s.htm",$urlbase, POSIX::strftime("%Y%m/%Y%m%d",localtime($currtime));
339
340	my $tries = ($daynum > 7 ? 1 : 5);
341	&log((sprintf "Fetching %s summary data: day %d of %d",
342	$xmlid, $daynum, $opt_days ));
343	my $data = Shepherd::Common::get_url(url => $url, retries => $tries, debug => $debug * 2);
344	my $tree = HTML::TreeBuilder->new_from_content($data) if ($data);
345
346	if (!defined $tree) {
347	&log("failed to fetch $url after $tries attempts; skipping");
348
349	die "couldn't fetch first daily page after $tries attempts, network is probably down. aborting!"
350	if ((!defined $stats{abc_daily_pages}) \|\| ($stats{abc_daily_pages} == 0));
351
352	if ($daynum > 7) {
353	&log("failed to fetch $url, assuming we only have $daynum days..");
354	$days_left = 0;
355	}
356	next;
357	}
358
359	my $seen_programmes = 0;
360	my $seen_pm = 0;
361
362	for ($tree->look_down('_tag' => 'div', 'class' => 'scheduleDiv')) {
363	foreach my $tree_tr ($_->look_down('_tag' => 'tr')) {
364	if (my $tree_row = $tree_tr->look_down('_tag' => 'th', 'scope' => 'row')) {
365	if ($tree_row->as_text() =~ /^(\d+):(\d+)(.)m/) {
366	$timeattr[2] = $1; # hour
367	$timeattr[1] = $2; # min
368
369	if ($3 eq "p") {
370	# pm
371	$timeattr[2] += 12 if ($timeattr[2] != 12);
372	$seen_pm = 1;
373	}
374	my $found_time = mktime(@timeattr);
375
376	# handle programmes that are after midnight
377	if (($seen_pm) && ($3 eq "a")) {
378	if ($timeattr[2] == 12) {
379	$found_time += (126060); # 12:xx am
380	} else {
381	$found_time += (246060);
382	}
383	}
384
385	if ($tree_tr->look_down('_tag' => 'td')) {
386	foreach my $prog ($tree_tr->look_down('_tag' => 'a')) {
387	my $programme = $prog->as_text();
388	my $progurl = $prog->attr('href');
389
390	if ($progurl =~ /^\/tv\/guide\//) {
391	printf "day %d time '%s' (%s) prog: %s url: %s\n",
392	$daynum,$tree_row->as_text(),POSIX::strftime("%Y%m%d%H%M", localtime($found_time)),
393	$programme,$progurl if ($debug && $debug > 1);
394
395	$unprocessed_progname[$unprocessed_programmes] = $programme;
396	$unprocessed_starttime[$unprocessed_programmes] = $found_time;
397	$unprocessed_url[$unprocessed_programmes] = "http://www.abc.net.au".$progurl;
398	$unprocessed_programmes++;
399	$seen_programmes++;
400	} else {
401	printf "ignoring prog %s because url %s is not a detail page\n",
402	$programme,$progurl if $debug;
403	}
404	}
405	}
406	}
407	}
408	}
409	}
410
411	if ($seen_programmes > 0) {
412	$stats{abc_daily_pages}++;
413
414	if (defined $station_close_data[$daynum]) {
415	# get station-close time from the previously-fetched "weekly programme guide"
416
417	$unprocessed_progname[$unprocessed_programmes] = "Station Close";
418	$unprocessed_starttime[$unprocessed_programmes] = $station_close_data[$daynum];
419	$unprocessed_url[$unprocessed_programmes] = "";
420	$unprocessed_programmes++;
421	} else {
422	# throw away last programme from each day - we can't use it as
423	# we don't have a 'stop' time for it
424
425	printf "throwing away '%s' (%s) because we won't have a valid stop time\n",
426	$unprocessed_progname[$unprocessed_programmes-1],
427	POSIX::strftime("%Y%m%d%H%M", localtime($unprocessed_starttime[$unprocessed_programmes-1]))
428	if $debug;
429	$unprocessed_progname[$unprocessed_programmes-1] = "";
430	}
431	} else {
432	# if we were trying to fetch more than 7 days, stop on first day with no programmes
433	if ($daynum > 7) {
434	&log("failed to fetch $url, assuming we only have $daynum days..");
435	$days_left = 0;
436	next DAYS;
437	}
438	}
439	}
440
441	# have 'n' days of this channel unprocessed - process it!
442	&log((sprintf "have summary data, now fetching detail pages for up to %d programmes..",$unprocessed_programmes-2));
443
444	for (my $i = 0; $i < ($unprocessed_programmes-1); $i++) {
445	next if ($unprocessed_progname[$i] eq "");
446
447	# if we are micro-gap fetching, only include programmes which match our micro gaps
448	if ($opt_gaps_file ne "") {
449	my $found_gap_match = 0;
450	for (my $g_num = 0; $g_num < $#gap_s; $g_num++) {
451	$found_gap_match++
452	if ((($gap_s[$g_num] >= $unprocessed_starttime[$i]) &&
453	($gap_s[$g_num] <= $unprocessed_starttime[$i+1])) \|\|
454	(($gap_e[$g_num] >= $unprocessed_starttime[$i]) &&
455	($gap_e[$g_num] <= $unprocessed_starttime[$i+1])) \|\|
456	(($gap_s[$g_num] <= $unprocessed_starttime[$i]) &&
457	($gap_e[$g_num] >= $unprocessed_starttime[$i+1])));
458	}
459	next if (!$found_gap_match);
460
461	$stats{programme_gaps_used}++;
462	printf "gap-fetching: including prog '%s', start %d, end %d\n", $unprocessed_progname[$i],
463	$unprocessed_starttime[$i], $unprocessed_starttime[$i+1] if $debug;
464	}
465
466	$stats{programmes}++;
467	my $prog;
468
469	my $cache_key = sprintf "%d,%d,%s,%s", $unprocessed_starttime[$i], $unprocessed_starttime[$i+1], $xmlid, $unprocessed_progname[$i];
470
471	$prog->{'channel'} = $xmlid;
472	$prog->{'start'} = POSIX::strftime("%Y%m%d%H%M", localtime($unprocessed_starttime[$i]));
473	$prog->{'stop'} = POSIX::strftime("%Y%m%d%H%M", localtime($unprocessed_starttime[$i+1]));
474	$prog->{'title'} = [[ $unprocessed_progname[$i], $lang ]];
475
476	if (defined $data_cache->{$cache_key}) {
477	$stats{used_cached_data}++;
478	} else {
479	if ((!$opt_cheap) && ($unprocessed_url[$i] ne "")) {
480	$stats{portal_detail_pages}++;
481	&get_one_abc_event($cache_key, $unprocessed_url[$i]);
482
483	if (($stats{portal_detail_pages} % 25) == 1) {
484	&log((sprintf " .. at %s detail page %d of %d (used %d cached entries)",
485	$xmlid, ($i+1), $unprocessed_programmes-2,
486	(defined $stats{used_cached_data} ? $stats{used_cached_data} : 0)));
487
488	if (!$opt_fast) {
489	# slow down ..
490	my $waittime = 3 + int(rand(10));
491	sleep($waittime);
492	$stats{slept_for} += $waittime;
493	}
494	}
495	}
496	}
497
498	if (defined $data_cache->{$cache_key}) {
499	$prog->{'sub-title'} = [[ $data_cache->{$cache_key}->{subtitle}, $lang ]]
500	if $data_cache->{$cache_key}->{subtitle};
501	$prog->{'desc'} = [[ $data_cache->{$cache_key}->{desc}, $lang ]]
502	if $data_cache->{$cache_key}->{desc};
503	$prog->{'category'} = [[ $data_cache->{$cache_key}->{genre}, $lang ]]
504	if $data_cache->{$cache_key}->{genre};
505	$prog->{'previously-shown'} = { } if (defined $data_cache->{$cache_key}->{repeat});
506	$prog->{'subtitles'} = [ { 'type' => 'teletext' } ] if (defined $data_cache->{$cache_key}->{cc});
507	$prog->{'rating'} = [ [ $data_cache->{$cache_key}->{rating}, 'ABA', undef] ]
508	if (defined $data_cache->{$cache_key}->{rating});
509	}
510
511	Shepherd::Common::cleanup($prog);
512	$writer->write_programme($prog);
513	}
514	}
515
516	######################################################################################################
517
518	sub get_one_abc_event
519	{
520	my ($cache_key, $url) = @_;
521	my $seen_programme = 0;
522
523	my $data = Shepherd::Common::get_url(url => $url, debug => $debug);
524	my $tree = HTML::TreeBuilder->new_from_content($data) if ($data);
525	if (!defined $tree) {
526	&log("failed to fetch $url; skipping");
527	return;
528	}
529
530	if (my $inner_tree = $tree->look_down('_tag' => 'div', 'class' => 'column2')) {
531	my $event_title = undef, my $event_subtitle = undef, my $event_description = undef, my $event_genre = undef;
532
533	if (my $prog_h2 = $inner_tree->look_down('_tag' => 'h2')) {
534	my $full_title = $prog_h2->as_HTML();
535	($event_title,$event_subtitle) = split(/<br>/,$full_title);
536
537	$event_title =~ s/(<[a-zA-Z0-9]+\>)//g; # remove html tags
538	$event_title =~ s/(^\n\|\n$)//g; # strip trailing/leading blank lines
539
540	if ($event_subtitle) {
541	$event_subtitle =~ s/(<[\/a-zA-Z0-9]+\>)//g; # remove html tags
542	$event_subtitle =~ s/(^\n\|\n$)//g; # strip trailing/leading blank lines
543	$data_cache->{$cache_key}->{subtitle} = $event_subtitle;
544	}
545	}
546
547	my $paranum = 0;
548	my $seen_genre = 0;
549	foreach my $para ($inner_tree->look_down('_tag' => 'p')) {
550	$paranum++;
551
552	if (($paranum > 1) && (!($para->as_text() =~ /^Go to website/)) && (!($para->as_text() =~ /^Send to a Friend/))) {
553	if (my $try_genre = $para->look_down('_tag' => 'a')) {
554	$data_cache->{$cache_key}->{genre} = $try_genre->as_text();
555	$seen_genre = 1;
556	}
557
558	if (!$seen_genre) {
559	$data_cache->{$cache_key}->{desc} .= $para->as_text() . "\n";
560	} else {
561	$data_cache->{$cache_key}->{repeat} = 1 if ($para->as_text() =~ /Repeat/);
562	$data_cache->{$cache_key}->{cc} = 1 if ($para->as_text() =~ /CC/);
563	$data_cache->{$cache_key}->{rating} = $1 if ($para->as_text() =~ /(M\|PG\|G)/);
564	}
565	}
566	}
567
568	if (defined $data_cache->{$cache_key}->{desc}) {
569	$data_cache->{$cache_key}->{desc} =~ s/(^\n\|\n$)//g; # strip trailing/leading blank lines
570	$data_cache->{$cache_key}->{desc} =~ s/(^\s+\|\s+$)//g; # strip trailing/leading spaces
571	delete $data_cache->{$cache_key}->{desc} if ($data_cache->{$cache_key}->{desc} eq "");
572	}
573
574	$seen_programme++;
575	$stats{added_cached_data}++;
576
577	&write_cache if (($opt_no_cache == 0) &&
578	(($stats{added_cached_data} % 30) == 0)); # incrementally write
579	}
580
581	if ($seen_programme == 0) {
582	printf "WARNING: failed to parse any programme data from '%s' - blocked/rate-limited/format-changed?\n",$url;
583	$stats{failed_to_parse_portal_detail_page}++;
584	}
585	}
586
587	######################################################################################################
588
589	sub log
590	{
591	my ($entry) = @_;
592	printf "%s\n", $entry;
593	}
594
595	######################################################################################################
596
597	sub print_stats
598	{
599	printf "STATS: %s v%s completed in %d seconds", $progname, $version, (time-$script_start_time);
600	foreach my $key (sort keys %stats) {
601	printf ", %d %s",$stats{$key},$key;
602	}
603	printf "\n";
604	}
605
606	######################################################################################################
607
608	sub get_station_close
609	{
610	my ($xmlid,$url) = @_;
611	&log("fetching (weekly) station close data for $xmlid");
612	my $data = Shepherd::Common::get_url(url => $url, debug => $debug);
613	my $tree = HTML::TreeBuilder->new_from_content($data) if ($data);
614
615	if (!defined $tree) {
616	&log("failed to fetch $url; skipping");
617	return;
618	}
619
620	my $to_skip = $opt_offset;
621	my $daynum = 0;
622	my $last_td_text;
623
624	foreach my $tree_td ($tree->look_down('_tag' => 'td')) {
625	if ($tree_td->as_text() =~ /^\.\.\.programs start at /) {
626	if (defined $last_td_text) {
627	if ($to_skip > 0) {
628	$to_skip--;
629	} else {
630	# 0=sec,1=min,2=hour,3=day,4=month,5=year,6=wday,7=yday,8=isdst
631	my @timeattr = localtime($starttime + ($daynum*86400));
632	$timeattr[0] = 0; # zero seconds
633
634	if ($last_td_text =~ /^(\d+):(\d+)(.)m/) {
635	$timeattr[2] = $1; # hour
636	$timeattr[1] = $2; # min
637
638	if ($3 eq "p") {
639	# pm
640	$timeattr[2] += 12 if ($timeattr[2] != 12);
641	}
642	my $found_time = mktime(@timeattr);
643
644	if ($3 eq "a") {
645	# am - must be tomorrow
646	if ($timeattr[2] == 12) {
647	$found_time += (126060); # 12:xx am
648	} else {
649	$found_time += (246060);
650	}
651	}
652
653	$daynum++;
654	$station_close_data[$daynum] = $found_time;
655
656	printf "station close time for day %d is %s\n",
657	$daynum, POSIX::strftime("%Y%m%d%H%M", localtime($found_time))
658	if $debug;
659	}
660	}
661	}
662	}
663	$last_td_text = $tree_td->as_text();
664	}
665	}
666
667	######################################################################################################

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