[ViewVC] Diff of: cvs/AnyEvent-HTTP/HTTP.pm

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.66 by root, Fri Dec 31 06:18:30 2010 UTC vs.
Revision 1.89 by root, Mon Jan 3 00:23:25 2011 UTC

…		…
36		36
37	=cut	37	=cut
38		38
39	package AnyEvent::HTTP;	39	package AnyEvent::HTTP;
40		40
41	use strict;	41	use common::sense;
42	no warnings;
43		42
44	use Errno ();	43	use Errno ();
45		44
46	use AnyEvent 5.0 ();	45	use AnyEvent 5.0 ();
47	use AnyEvent::Util ();	46	use AnyEvent::Util ();
…		…
58	our $MAX_PERSISTENT = 8;	57	our $MAX_PERSISTENT = 8;
59	our $PERSISTENT_TIMEOUT = 2;	58	our $PERSISTENT_TIMEOUT = 2;
60	our $TIMEOUT = 300;	59	our $TIMEOUT = 300;
61		60
62	# changing these is evil	61	# changing these is evil
63	our $MAX_PERSISTENT_PER_HOST = 0;	62	our $MAX_PERSISTENT_PER_HOST = 2;
64	our $MAX_PER_HOST = 4;	63	our $MAX_PER_HOST = 4;
65		64
66	our $PROXY;	65	our $PROXY;
67	our $ACTIVE = 0;	66	our $ACTIVE = 0;
68		67
…		…
94	C<http_request> returns a "cancellation guard" - you have to keep the	93	C<http_request> returns a "cancellation guard" - you have to keep the
95	object at least alive until the callback get called. If the object gets	94	object at least alive until the callback get called. If the object gets
96	destroyed before the callback is called, the request will be cancelled.	95	destroyed before the callback is called, the request will be cancelled.
97		96
98	The callback will be called with the response body data as first argument	97	The callback will be called with the response body data as first argument
99	(or C<undef> if an error occured), and a hash-ref with response headers as	98	(or C<undef> if an error occured), and a hash-ref with response headers
100	second argument.	99	(and trailers) as second argument.
101		100
102	All the headers in that hash are lowercased. In addition to the response	101	All the headers in that hash are lowercased. In addition to the response
103	headers, the "pseudo-headers" (uppercase to avoid clashing with possible	102	headers, the "pseudo-headers" (uppercase to avoid clashing with possible
104	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the	103	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the
105	three parts of the HTTP Status-Line of the same name. If an error occurs	104	three parts of the HTTP Status-Line of the same name. If an error occurs
…		…
122		121
123	If the server sends a header multiple times, then their contents will be	122	If the server sends a header multiple times, then their contents will be
124	joined together with a comma (C<,>), as per the HTTP spec.	123	joined together with a comma (C<,>), as per the HTTP spec.
125		124
126	If an internal error occurs, such as not being able to resolve a hostname,	125	If an internal error occurs, such as not being able to resolve a hostname,
127	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<59x>	126	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be
128	(usually C<599>) and the C<Reason> pseudo-header will contain an error	127	C<590>-C<599> and the C<Reason> pseudo-header will contain an error
129	message.	128	message. Currently the following status codes are used:
		129
		130	=over 4
		131
		132	=item 595 - errors during connection etsbalishment, proxy handshake.
		133
		134	=item 596 - errors during TLS negotiation, request sending and header processing.
		135
		136	=item 597 - errors during body receiving or processing.
		137
		138	=item 598 - user aborted request via C<on_header> or C<on_body>.
		139
		140	=item 599 - other, usually nonretryable, errors (garbled URL etc.).
		141
		142	=back
130		143
131	A typical callback might look like this:	144	A typical callback might look like this:
132		145
133	sub {	146	sub {
134	my ($body, $hdr) = @_;	147	my ($body, $hdr) = @_;
…		…
150	Whether to recurse requests or not, e.g. on redirects, authentication	163	Whether to recurse requests or not, e.g. on redirects, authentication
151	retries and so on, and how often to do so.	164	retries and so on, and how often to do so.
152		165
153	=item headers => hashref	166	=item headers => hashref
154		167
155	The request headers to use. Currently, C<http_request> may provide its	168	The request headers to use. Currently, C<http_request> may provide its own
156	own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers	169	C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers and
157	and will provide defaults for C<User-Agent:> and C<Referer:> (this can be	170	will provide defaults at least for C<TE:>, C<Referer:> and C<User-Agent:>
158	suppressed by using C<undef> for these headers in which case they won't be	171	(this can be suppressed by using C<undef> for these headers in which case
159	sent at all).	172	they won't be sent at all).
160		173
161	=item timeout => $seconds	174	=item timeout => $seconds
162		175
163	The time-out to use for various stages - each connect attempt will reset	176	The time-out to use for various stages - each connect attempt will reset
164	the timeout, as will read or write activity, i.e. this is not an overall	177	the timeout, as will read or write activity, i.e. this is not an overall
…		…
174	C<$scheme> must be either missing, C<http> for HTTP or C<https> for	187	C<$scheme> must be either missing, C<http> for HTTP or C<https> for
175	HTTPS.	188	HTTPS.
176		189
177	=item body => $string	190	=item body => $string
178		191
179	The request body, usually empty. Will be-sent as-is (future versions of	192	The request body, usually empty. Will be sent as-is (future versions of
180	this module might offer more options).	193	this module might offer more options).
181		194
182	=item cookie_jar => $hash_ref	195	=item cookie_jar => $hash_ref
183		196
184	Passing this parameter enables (simplified) cookie-processing, loosely	197	Passing this parameter enables (simplified) cookie-processing, loosely
185	based on the original netscape specification.	198	based on the original netscape specification.
186		199
187	The C<$hash_ref> must be an (initially empty) hash reference which will	200	The C<$hash_ref> must be an (initially empty) hash reference which
188	get updated automatically. It is possible to save the cookie_jar to	201	will get updated automatically. It is possible to save the cookie jar
189	persistent storage with something like JSON or Storable, but this is not	202	to persistent storage with something like JSON or Storable - see the
190	recommended, as expiry times are currently being ignored.	203	C<AnyEvent::HTTP::cookie_jar_expire> function if you wish to remove
		204	expired or session-only cookies, and also for documentation on the format
		205	of the cookie jar.
191		206
192	Note that this cookie implementation is not of very high quality, nor	207	Note that this cookie implementation is not meant to be complete. If
193	meant to be complete. If you want complete cookie management you have to	208	you want complete cookie management you have to do that on your
194	do that on your own. C<cookie_jar> is meant as a quick fix to get some	209	own. C<cookie_jar> is meant as a quick fix to get most cookie-using sites
195	cookie-using sites working. Cookies are a privacy disaster, do not use	210	working. Cookies are a privacy disaster, do not use them unless required
196	them unless required to.	211	to.
		212
		213	When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:>
		214	headers will be set and handled by this module, otherwise they will be
		215	left untouched.
197		216
198	=item tls_ctx => $scheme \| $tls_ctx	217	=item tls_ctx => $scheme \| $tls_ctx
199		218
200	Specifies the AnyEvent::TLS context to be used for https connections. This	219	Specifies the AnyEvent::TLS context to be used for https connections. This
201	parameter follows the same rules as the C<tls_ctx> parameter to	220	parameter follows the same rules as the C<tls_ctx> parameter to
…		…
240		259
241	This callback is useful, among other things, to quickly reject unwanted	260	This callback is useful, among other things, to quickly reject unwanted
242	content, which, if it is supposed to be rare, can be faster than first	261	content, which, if it is supposed to be rare, can be faster than first
243	doing a C<HEAD> request.	262	doing a C<HEAD> request.
244		263
		264	The downside is that cancelling the request makes it impossible to re-use
		265	the connection. Also, the C<on_header> callback will not receive any
		266	trailer (headers sent after the response body).
		267
245	Example: cancel the request unless the content-type is "text/html".	268	Example: cancel the request unless the content-type is "text/html".
246		269
247	on_header => sub {	270	on_header => sub {
248	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	271	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
249	},	272	},
…		…
255	string instead of the body data.	278	string instead of the body data.
256		279
257	It has to return either true (in which case AnyEvent::HTTP will continue),	280	It has to return either true (in which case AnyEvent::HTTP will continue),
258	or false, in which case AnyEvent::HTTP will cancel the download (and call	281	or false, in which case AnyEvent::HTTP will cancel the download (and call
259	the completion callback with an error code of C<598>).	282	the completion callback with an error code of C<598>).
		283
		284	The downside to cancelling the request is that it makes it impossible to
		285	re-use the connection.
260		286
261	This callback is useful when the data is too large to be held in memory	287	This callback is useful when the data is too large to be held in memory
262	(so the callback writes it to a file) or when only some information should	288	(so the callback writes it to a file) or when only some information should
263	be extracted, or when the body should be processed incrementally.	289	be extracted, or when the body should be processed incrementally.
264		290
…		…
290	If you think you need this, first have a look at C<on_body>, to see if	316	If you think you need this, first have a look at C<on_body>, to see if
291	that doesn't solve your problem in a better way.	317	that doesn't solve your problem in a better way.
292		318
293	=back	319	=back
294		320
295	Example: make a simple HTTP GET request for http://www.nethype.de/	321	Example: do a simple HTTP GET request for http://www.nethype.de/ and print
		322	the response body.
296		323
297	http_request GET => "http://www.nethype.de/", sub {	324	http_request GET => "http://www.nethype.de/", sub {
298	my ($body, $hdr) = @_;	325	my ($body, $hdr) = @_;
299	print "$body\n";	326	print "$body\n";
300	};	327	};
301		328
302	Example: make a HTTP HEAD request on https://www.google.com/, use a	329	Example: do a HTTP HEAD request on https://www.google.com/, use a
303	timeout of 30 seconds.	330	timeout of 30 seconds.
304		331
305	http_request	332	http_request
306	GET => "https://www.google.com",	333	GET => "https://www.google.com",
307	timeout => 30,	334	timeout => 30,
…		…
310	use Data::Dumper;	337	use Data::Dumper;
311	print Dumper $hdr;	338	print Dumper $hdr;
312	}	339	}
313	;	340	;
314		341
315	Example: make another simple HTTP GET request, but immediately try to	342	Example: do another simple HTTP GET request, but immediately try to
316	cancel it.	343	cancel it.
317		344
318	my $request = http_request GET => "http://www.nethype.de/", sub {	345	my $request = http_request GET => "http://www.nethype.de/", sub {
319	my ($body, $hdr) = @_;	346	my ($body, $hdr) = @_;
320	print "$body\n";	347	print "$body\n";
…		…
352	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	379	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
353		380
354	_slot_schedule $_[0];	381	_slot_schedule $_[0];
355	}	382	}
356		383
		384	#############################################################################
		385
		386	# expire cookies
		387	sub cookie_jar_expire($;$) {
		388	my ($jar, $session_end) = @_;
		389
		390	%$jar = () if $jar->{version} != 1;
		391
		392	my $anow = AE::now;
		393
		394	while (my ($chost, $paths) = each %$jar) {
		395	next unless ref $paths;
		396
		397	while (my ($cpath, $cookies) = each %$paths) {
		398	while (my ($cookie, $kv) = each %$cookies) {
		399	if (exists $kv->{_expires}) {
		400	delete $cookies->{$cookie}
		401	if $anow > $kv->{_expires};
		402	} elsif ($session_end) {
		403	delete $cookies->{$cookie};
		404	}
		405	}
		406
		407	delete $paths->{$cpath}
		408	unless %$cookies;
		409	}
		410
		411	delete $jar->{$chost}
		412	unless %$paths;
		413	}
		414	}
		415
		416	# extract cookies from jar
		417	sub cookie_jar_extract($$$$) {
		418	my ($jar, $uscheme, $uhost, $upath) = @_;
		419
		420	%$jar = () if $jar->{version} != 1;
		421
		422	my @cookies;
		423
		424	while (my ($chost, $paths) = each %$jar) {
		425	next unless ref $paths;
		426
		427	if ($chost =~ /^\./) {
		428	next unless $chost eq substr $uhost, -length $chost;
		429	} elsif ($chost =~ /\./) {
		430	next unless $chost eq $uhost;
		431	} else {
		432	next;
		433	}
		434
		435	while (my ($cpath, $cookies) = each %$paths) {
		436	next unless $cpath eq substr $upath, 0, length $cpath;
		437
		438	while (my ($cookie, $kv) = each %$cookies) {
		439	next if $uscheme ne "https" && exists $kv->{secure};
		440
		441	if (exists $kv->{_expires} and AE::now > $kv->{_expires}) {
		442	delete $cookies->{$cookie};
		443	next;
		444	}
		445
		446	my $value = $kv->{value};
		447
		448	if ($value =~ /[=;,[:space:]]/) {
		449	$value =~ s/([\\"])/\\$1/g;
		450	$value = "\"$value\"";
		451	}
		452
		453	push @cookies, "$cookie=$value";
		454	}
		455	}
		456	}
		457
		458	\@cookies
		459	}
		460
		461	# parse set_cookie header into jar
		462	sub cookie_jar_set_cookie($$$$) {
		463	my ($jar, $set_cookie, $uhost, $date) = @_;
		464
		465	my $anow = int AE::now;
		466	my $snow; # server-now
		467
		468	for ($set_cookie) {
		469	# parse NAME=VALUE
		470	my @kv;
		471
		472	# expires is not http-compliant in the original cookie-spec,
		473	# we support the official date format and some extensions
		474	while (
		475	m{
		476	\G\s*
		477	(?:
		478	expires \s=\s ([A-Z][a-z][a-z]+,\ [^,;]+)
		479	\| ([^=;,[:space:]]+) (?: \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) ) )?
		480	)
		481	}gcxsi
		482	) {
		483	my $name = $2;
		484	my $value = $4;
		485
		486	if (defined $1) {
		487	# expires
		488	$name = "expires";
		489	$value = $1;
		490	} elsif (defined $3) {
		491	# quoted
		492	$value = $3;
		493	$value =~ s/\\(.)/$1/gs;
		494	}
		495
		496	push @kv, lc $name, $value;
		497
		498	last unless /\G\s*;/gc;
		499	}
		500
		501	last unless @kv;
		502
		503	my $name = shift @kv;
		504	my %kv = (value => shift @kv, @kv);
		505
		506	if (exists $kv{"max-age"}) {
		507	$kv{_expires} = $anow + delete $kv{"max-age"};
		508	} elsif (exists $kv{expires}) {
		509	$snow \|\|= parse_date ($date) \|\| $anow;
		510	$kv{_expires} = $anow + (parse_date (delete $kv{expires}) - $snow);
		511	} else {
		512	delete $kv{_expires};
		513	}
		514
		515	my $cdom;
		516	my $cpath = (delete $kv{path}) \|\| "/";
		517
		518	if (exists $kv{domain}) {
		519	$cdom = delete $kv{domain};
		520
		521	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		522
		523	next if $cdom =~ /\.$/;
		524
		525	# this is not rfc-like and not netscape-like. go figure.
		526	my $ndots = $cdom =~ y/.//;
		527	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		528	} else {
		529	$cdom = $uhost;
		530	}
		531
		532	# store it
		533	$jar->{version} = 1;
		534	$jar->{lc $cdom}{$cpath}{$name} = \%kv;
		535
		536	redo if /\G\s*,/gc;
		537	}
		538	}
		539
357	# continue to parse $_ for headers and place them into the arg	540	# continue to parse $_ for headers and place them into the arg
358	sub parse_hdr() {	541	sub parse_hdr() {
359	my %hdr;	542	my %hdr;
360		543
361	# things seen, not parsed:	544	# things seen, not parsed:
…		…
423	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });	606	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
424		607
425	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	608	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
426	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });	609	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
427		610
428	my $uhost = $1;	611	my $uhost = lc $1;
429	$uport = $2 if defined $2;	612	$uport = $2 if defined $2;
430		613
431	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"	614	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
432	unless exists $hdr{host};	615	unless exists $hdr{host};
433		616
…		…
436		619
437	$upath =~ s%^/?%/%;	620	$upath =~ s%^/?%/%;
438		621
439	# cookie processing	622	# cookie processing
440	if (my $jar = $arg{cookie_jar}) {	623	if (my $jar = $arg{cookie_jar}) {
441	%$jar = () if $jar->{version} != 1;	624	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
442		625
443	my @cookie;
444
445	while (my ($chost, $v) = each %$jar) {
446	if ($chost =~ /^\./) {
447	next unless $chost eq substr $uhost, -length $chost;
448	} elsif ($chost =~ /\./) {
449	next unless $chost eq $uhost;
450	} else {
451	next;
452	}
453
454	while (my ($cpath, $v) = each %$v) {
455	next unless $cpath eq substr $upath, 0, length $cpath;
456
457	while (my ($k, $v) = each %$v) {
458	next if $uscheme ne "https" && exists $v->{secure};
459	my $value = $v->{value};
460	$value =~ s/([\\"])/\\$1/g;
461	push @cookie, "$k=\"$value\"";
462	}
463	}
464	}
465
466	$hdr{cookie} = join "; ", @cookie	626	$hdr{cookie} = join "; ", @$cookies
467	if @cookie;	627	if @$cookies;
468	}	628	}
469		629
470	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	630	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
471		631
472	if ($proxy) {	632	if ($proxy) {
…		…
475	$rscheme = "http" unless defined $rscheme;	635	$rscheme = "http" unless defined $rscheme;
476		636
477	# don't support https requests over https-proxy transport,	637	# don't support https requests over https-proxy transport,
478	# can't be done with tls as spec'ed, unless you double-encrypt.	638	# can't be done with tls as spec'ed, unless you double-encrypt.
479	$rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";	639	$rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";
		640
		641	$rhost = lc $rhost;
		642	$rscheme = lc $rscheme;
480	} else {	643	} else {
481	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	644	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
482	}	645	}
483		646
484	# leave out fragment and query string, just a heuristic	647	# leave out fragment and query string, just a heuristic
…		…
486	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};	649	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
487		650
488	$hdr{"content-length"} = length $arg{body}	651	$hdr{"content-length"} = length $arg{body}
489	if length $arg{body} \|\| $method ne "GET";	652	if length $arg{body} \|\| $method ne "GET";
490		653
491	$hdr{connection} = "close TE";	654	my $idempotent = $method =~ /^(?:GET\|HEAD\|PUT\|DELETE\|OPTIONS\|TRACE)$/;
		655
		656	# default value for keepalive is true iff the request is for an idempotent method
		657	my $keepalive = exists $arg{keepalive}
		658	? $arg{keepalive}*1
		659	: $idempotent ? $PERSISTENT_TIMEOUT : 0;
		660
		661	$hdr{connection} = ($keepalive ? "" : "close ") . "Te"; #1.1
492	$hdr{te} = "trailers" unless exists $hdr{te};	662	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
493		663
494	my %state = (connect_guard => 1);	664	my %state = (connect_guard => 1);
495		665
496	_get_slot $uhost, sub {	666	my $ae_error = 595; # connecting
497	$state{slot_guard} = shift;
498		667
		668	# handle actual, non-tunneled, request
		669	my $handle_actual_request = sub {
		670	$ae_error = 596; # request phase
		671
		672	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
		673
		674	# send request
		675	$state{handle}->push_write (
		676	"$method $rpath HTTP/1.1\015\012"
		677	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
		678	. "\015\012"
		679	. (delete $arg{body})
		680	);
		681
		682	# return if error occured during push_write()
499	return unless $state{connect_guard};	683	return unless %state;
500		684
501	my $connect_cb = sub {	685	# reduce memory usage, save a kitten, also re-use it for the response headers.
502	$state{fh} = shift	686	%hdr = ();
		687
		688	# status line and headers
		689	$state{read_response} = sub {
		690	for ("$_[1]") {
		691	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		692
		693	/^HTTP\/0([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]) )? \012/gxci
		694	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
		695
		696	# 100 Continue handling
		697	# should not happen as we don't send expect: 100-continue,
		698	# but we handle it just in case.
		699	# since we send the request body regardless, if we get an error
		700	# we are out of-sync, which we currently do NOT handle correctly.
		701	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
		702	if $2 eq 100;
		703
		704	push @pseudo,
		705	HTTPVersion => $1,
		706	Status => $2,
		707	Reason => $3,
503	or do {	708	;
504	my $err = "$!";	709
		710	my $hdr = parse_hdr
		711	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		712
		713	%hdr = (%$hdr, @pseudo);
		714	}
		715
		716	# redirect handling
		717	# microsoft and other shitheads don't give a shit for following standards,
		718	# try to support some common forms of broken Location headers.
		719	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		720	$hdr{location} =~ s/^\.\/+//;
		721
		722	my $url = "$rscheme://$uhost:$uport";
		723
		724	unless ($hdr{location} =~ s/^\///) {
		725	$url .= $upath;
		726	$url =~ s/\/[^\/]*$//;
		727	}
		728
		729	$hdr{location} = "$url/$hdr{location}";
		730	}
		731
		732	my $redirect;
		733
		734	if ($recurse) {
		735	my $status = $hdr{Status};
		736
		737	# industry standard is to redirect POST as GET for
		738	# 301, 302 and 303, in contrast to HTTP/1.0 and 1.1.
		739	# also, the UA should ask the user for 301 and 307 and POST,
		740	# industry standard seems to be to simply follow.
		741	# we go with the industry standard.
		742	if ($status == 301 or $status == 302 or $status == 303) {
		743	# HTTP/1.1 is unclear on how to mutate the method
		744	$method = "GET" unless $method eq "HEAD";
		745	$redirect = 1;
		746	} elsif ($status == 307) {
		747	$redirect = 1;
		748	}
		749	}
		750
		751	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
		752	my $may_keep_alive = $_[3];
		753
		754	$state{handle}->destroy if $state{handle};
505	%state = ();	755	%state = ();
506	return $cb->(undef, { @pseudo, Status => 599, Reason => $err });	756
		757	if (defined $_[1]) {
		758	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		759	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		760	}
		761
		762	# set-cookie processing
		763	if ($arg{cookie_jar}) {
		764	cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost, $hdr{date};
		765	}
		766
		767	if ($redirect && exists $hdr{location}) {
		768	# we ignore any errors, as it is very common to receive
		769	# Content-Length != 0 but no actual body
		770	# we also access %hdr, as $_[1] might be an erro
		771	http_request (
		772	$method => $hdr{location},
		773	%arg,
		774	recurse => $recurse - 1,
		775	Redirect => [$_[0], \%hdr],
		776	$cb);
		777	} else {
		778	$cb->($_[0], \%hdr);
		779	}
		780	};
		781
		782	$ae_error = 597; # body phase
		783
		784	my $len = $hdr{"content-length"};
		785
		786	# body handling, many different code paths
		787	# - no body expected
		788	# - want_body_handle
		789	# - te chunked
		790	# - 2x length known (with or without on_body)
		791	# - 2x length not known (with or without on_body)
		792	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		793	$finish->(undef, 598 => "Request cancelled by on_header");
		794	} elsif (
		795	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		796	or $method eq "HEAD"
		797	or (defined $len && $len == 0) # == 0, not !, because "0 " is true
		798	) {
		799	# no body
		800	$finish->("", undef, undef, 1);
		801
		802	} elsif (!$redirect && $arg{want_body_handle}) {
		803	$_[0]->on_eof (undef);
		804	$_[0]->on_error (undef);
		805	$_[0]->on_read (undef);
		806
		807	$finish->(delete $state{handle});
		808
		809	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		810	my $cl = 0;
		811	my $body = undef;
		812	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		813
		814	$state{read_chunk} = sub {
		815	$_[1] =~ /^([0-9a-fA-F]+)/
		816	or $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		817
		818	my $len = hex $1;
		819
		820	if ($len) {
		821	$cl += $len;
		822
		823	$_[0]->push_read (chunk => $len, sub {
		824	$on_body->($_[1], \%hdr)
		825	or return $finish->(undef, 598 => "Request cancelled by on_body");
		826
		827	$_[0]->push_read (line => sub {
		828	length $_[1]
		829	and return $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		830	$_[0]->push_read (line => $state{read_chunk});
		831	});
		832	});
		833	} else {
		834	$hdr{"content-length"} \|\|= $cl;
		835
		836	$_[0]->push_read (line => $qr_nlnl, sub {
		837	if (length $_[1]) {
		838	for ("$_[1]") {
		839	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		840
		841	my $hdr = parse_hdr
		842	or return $finish->(undef, $ae_error => "Garbled response trailers");
		843
		844	%hdr = (%hdr, %$hdr);
		845	}
		846	}
		847
		848	$finish->($body, undef, undef, 1);
		849	});
		850	}
507	};	851	};
508		852
509	pop; # free memory, save a tree	853	$_[0]->push_read (line => $state{read_chunk});
510		854
		855	} elsif ($arg{on_body}) {
		856	if (defined $len) {
		857	$_[0]->on_read (sub {
		858	$len -= length $_[0]{rbuf};
		859
		860	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		861	or return $finish->(undef, 598 => "Request cancelled by on_body");
		862
		863	$len > 0
		864	or $finish->("", undef, undef, 1);
		865	});
		866	} else {
		867	$_[0]->on_eof (sub {
		868	$finish->("");
		869	});
		870	$_[0]->on_read (sub {
		871	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		872	or $finish->(undef, 598 => "Request cancelled by on_body");
		873	});
		874	}
		875	} else {
		876	$_[0]->on_eof (undef);
		877
		878	if (defined $len) {
		879	$_[0]->on_read (sub {
		880	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
		881	if $len <= length $_[0]{rbuf};
		882	});
		883	} else {
		884	$_[0]->on_error (sub {
		885	($! == Errno::EPIPE \|\| !$!)
		886	? $finish->(delete $_[0]{rbuf})
		887	: $finish->(undef, $ae_error => $_[2]);
		888	});
		889	$_[0]->on_read (sub { });
		890	}
		891	}
		892	};
		893
		894	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
		895	};
		896
		897	my $connect_cb = sub {
		898	$state{fh} = shift
		899	or do {
		900	my $err = "$!";
		901	%state = ();
		902	return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err });
		903	};
		904
511	return unless delete $state{connect_guard};	905	return unless delete $state{connect_guard};
512		906
513	# get handle	907	# get handle
514	$state{handle} = new AnyEvent::Handle	908	$state{handle} = new AnyEvent::Handle
515	fh => $state{fh},	909	fh => $state{fh},
516	peername => $rhost,	910	peername => $rhost,
517	tls_ctx => $arg{tls_ctx},	911	tls_ctx => $arg{tls_ctx},
518	# these need to be reconfigured on keepalive handles	912	# these need to be reconfigured on keepalive handles
519	timeout => $timeout,	913	timeout => $timeout,
520	on_error => sub {	914	on_error => sub {
521	%state = ();	915	%state = ();
522	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });	916	$cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] });
523	},	917	},
524	on_eof => sub {	918	on_eof => sub {
525	%state = ();	919	%state = ();
526	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });	920	$cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" });
527	},	921	},
528	;	922	;
529		923
530	# limit the number of persistent connections	924	# limit the number of persistent connections
531	# keepalive not yet supported	925	# keepalive not yet supported
532	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	926	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
533	# ++$KA_COUNT{$_[1]};	927	# ++$KA_COUNT{$_[1]};
534	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {	928	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
535	# --$KA_COUNT{$_[1]}	929	# --$KA_COUNT{$_[1]}
536	# };	930	# };
537	# $hdr{connection} = "keep-alive";	931	# $hdr{connection} = "keep-alive";
538	# } else {
539	# delete $hdr{connection};
540	# }	932	# }
541		933
542	$state{handle}->starttls ("connect") if $rscheme eq "https";	934	$state{handle}->starttls ("connect") if $rscheme eq "https";
543		935
544	# handle actual, non-tunneled, request
545	my $handle_actual_request = sub {
546	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
547
548	# send request
549	$state{handle}->push_write (
550	"$method $rpath HTTP/1.1\015\012"
551	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
552	. "\015\012"
553	. (delete $arg{body})
554	);
555
556	# return if error occured during push_write()
557	return unless %state;
558
559	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
560
561	# status line and headers
562	$state{handle}->push_read (line => $qr_nlnl, sub {
563	my $keepalive = pop;
564
565	for ("$_[1]") {
566	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
567
568	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc
569	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
570
571	push @pseudo,
572	HTTPVersion => $1,
573	Status => $2,
574	Reason => $3,
575	;
576
577	my $hdr = parse_hdr
578	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
579
580	%hdr = (%$hdr, @pseudo);
581	}
582
583	# redirect handling
584	# microsoft and other shitheads don't give a shit for following standards,
585	# try to support some common forms of broken Location headers.
586	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
587	$hdr{location} =~ s/^\.\/+//;
588
589	my $url = "$rscheme://$uhost:$uport";
590
591	unless ($hdr{location} =~ s/^\///) {
592	$url .= $upath;
593	$url =~ s/\/[^\/]*$//;
594	}
595
596	$hdr{location} = "$url/$hdr{location}";
597	}
598
599	my $redirect;
600
601	if ($recurse) {
602	my $status = $hdr{Status};
603
604	# industry standard is to redirect POST as GET for
605	# 301, 302 and 303, in contrast to http/1.0 and 1.1.
606	# also, the UA should ask the user for 301 and 307 and POST,
607	# industry standard seems to be to simply follow.
608	# we go with the industry standard.
609	if ($status == 301 or $status == 302 or $status == 303) {
610	# HTTP/1.1 is unclear on how to mutate the method
611	$method = "GET" unless $method eq "HEAD";
612	$redirect = 1;
613	} elsif ($status == 307) {
614	$redirect = 1;
615	}
616	}
617
618	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
619	$state{handle}->destroy if $state{handle};
620	%state = ();
621
622	if (defined $_[1]) {
623	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
624	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
625	}
626
627	# set-cookie processing
628	if ($arg{cookie_jar}) {
629	for ($hdr{"set-cookie"}) {
630	# parse NAME=VALUE
631	my @kv;
632
633	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
634	my $name = $1;
635	my $value = $3;
636
637	unless ($value) {
638	$value = $2;
639	$value =~ s/\\(.)/$1/gs;
640	}
641
642	push @kv, $name => $value;
643
644	last unless /\G\s*;/gc;
645	}
646
647	last unless @kv;
648
649	my $name = shift @kv;
650	my %kv = (value => shift @kv, @kv);
651
652	my $cdom;
653	my $cpath = (delete $kv{path}) \|\| "/";
654
655	if (exists $kv{domain}) {
656	$cdom = delete $kv{domain};
657
658	$cdom =~ s/^\.?/./; # make sure it starts with a "."
659
660	next if $cdom =~ /\.$/;
661
662	# this is not rfc-like and not netscape-like. go figure.
663	my $ndots = $cdom =~ y/.//;
664	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
665	} else {
666	$cdom = $uhost;
667	}
668
669	# store it
670	$arg{cookie_jar}{version} = 1;
671	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
672
673	redo if /\G\s*,/gc;
674	}
675	}
676
677	if ($redirect && exists $hdr{location}) {
678	# we ignore any errors, as it is very common to receive
679	# Content-Length != 0 but no actual body
680	# we also access %hdr, as $_[1] might be an erro
681	http_request (
682	$method => $hdr{location},
683	%arg,
684	recurse => $recurse - 1,
685	Redirect => [$_[0], \%hdr],
686	$cb);
687	} else {
688	$cb->($_[0], \%hdr);
689	}
690	};
691
692	my $len = $hdr{"content-length"};
693
694	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
695	$finish->(undef, 598 => "Request cancelled by on_header");
696	} elsif (
697	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
698	or $method eq "HEAD"
699	or (defined $len && !$len)
700	) {
701	# no body
702	$finish->("", undef, undef, 1);
703	} else {
704	# body handling, many different code paths
705	# - no body expected
706	# - want_body_handle
707	# - te chunked
708	# - 2x length known (with or without on_body)
709	# - 2x length not known (with or without on_body)
710	if (!$redirect && $arg{want_body_handle}) {
711	$_[0]->on_eof (undef);
712	$_[0]->on_error (undef);
713	$_[0]->on_read (undef);
714
715	$finish->(delete $state{handle});
716
717	} elsif ($hdr{"transfer-encoding"} =~ /chunked/) {
718	my $body = undef;
719	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
720
721	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
722
723	my $read_chunk; $read_chunk = sub {
724	warn $_[1];#d#
725	$_[1] =~ /^([0-9a-fA-F]+)/
726	or $finish->(undef, 599 => "Garbled chunked transfer encoding");
727
728	my $len = hex $1;
729
730	if ($len) {
731	$_[0]->push_read (chunk => hex $1, sub {
732	$on_body->($_[1], \%hdr)
733	or return $finish->(undef, 598 => "Request cancelled by on_body");
734
735	$_[0]->push_read (line => sub {
736	length $_[1]
737	and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
738	$_[0]->push_read (line => $read_chunk);
739	});
740	});
741	} else {
742	$_[0]->push_read (line => $qr_nlnl, sub {
743	if (length $_[1]) {
744	for ("$_[1]") {
745	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
746
747	my $hdr = parse_hdr
748	or return $finish->(undef, 599 => "Garbled response trailers");
749
750	%hdr = (%hdr, %$hdr);
751	}
752	}
753
754	$finish->($body, undef, undef, 1);
755	});
756	}
757	};
758
759	$_[0]->push_read (line => $read_chunk);
760
761	} elsif ($arg{on_body}) {
762	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
763
764	if ($len) {
765	$_[0]->on_read (sub {
766	$len -= length $_[0]{rbuf};
767
768	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
769	or return $finish->(undef, 598 => "Request cancelled by on_body");
770
771	$len > 0
772	or $finish->("", undef, undef, 1);
773	});
774	} else {
775	$_[0]->on_eof (sub {
776	$finish->("");
777	});
778	$_[0]->on_read (sub {
779	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
780	or $finish->(undef, 598 => "Request cancelled by on_body");
781	});
782	}
783	} else {
784	$_[0]->on_eof (undef);
785
786	if ($len) {
787	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
788	$_[0]->on_read (sub {
789	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
790	if $len <= length $_[0]{rbuf};
791	});
792	} else {
793	$_[0]->on_error (sub {
794	($! == Errno::EPIPE \|\| !$!)
795	? $finish->(delete $_[0]{rbuf})
796	: $finish->(undef, 599 => $_[2]);
797	});
798	$_[0]->on_read (sub { });
799	}
800	}
801	}
802	});
803	};
804
805	# now handle proxy-CONNECT method	936	# now handle proxy-CONNECT method
806	if ($proxy && $uscheme eq "https") {	937	if ($proxy && $uscheme eq "https") {
807	# oh dear, we have to wrap it into a connect request	938	# oh dear, we have to wrap it into a connect request
808		939
809	# maybe re-use $uauthority with patched port?	940	# maybe re-use $uauthority with patched port?
810	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");	941	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012\015\012");
811	$state{handle}->push_read (line => $qr_nlnl, sub {	942	$state{handle}->push_read (line => $qr_nlnl, sub {
812	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	943	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
813	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));	944	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
814		945
815	if ($2 == 200) {	946	if ($2 == 200) {
816	$rpath = $upath;	947	$rpath = $upath;
817	&$handle_actual_request;	948	$handle_actual_request->();
818	} else {	949	} else {
819	%state = ();	950	%state = ();
820	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });	951	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
821	}
822	});	952	}
823	} else {
824	&$handle_actual_request;
825	}	953	});
		954	} else {
		955	$handle_actual_request->();
826	};	956	}
		957	};
		958
		959	_get_slot $uhost, sub {
		960	$state{slot_guard} = shift;
		961
		962	return unless $state{connect_guard};
827		963
828	my $tcp_connect = $arg{tcp_connect}	964	my $tcp_connect = $arg{tcp_connect}
829	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };	965	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
830		966
831	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });	967	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
832
833	};	968	};
834		969
835	defined wantarray && AnyEvent::Util::guard { %state = () }	970	defined wantarray && AnyEvent::Util::guard { %state = () }
836	}	971	}
837		972
…		…
872	string of the form C<http://host:port> (optionally C<https:...>), croaks	1007	string of the form C<http://host:port> (optionally C<https:...>), croaks
873	otherwise.	1008	otherwise.
874		1009
875	To clear an already-set proxy, use C<undef>.	1010	To clear an already-set proxy, use C<undef>.
876		1011
		1012	=item AnyEvent::HTTP::cookie_jar_expire $jar[, $session_end]
		1013
		1014	Remove all cookies from the cookie jar that have been expired. If
		1015	C<$session_end> is given and true, then additionally remove all session
		1016	cookies.
		1017
		1018	You should call this function (with a true C<$session_end>) before you
		1019	save cookies to disk, and you should call this function after loading them
		1020	again. If you have a long-running program you can additonally call this
		1021	function from time to time.
		1022
		1023	A cookie jar is initially an empty hash-reference that is managed by this
		1024	module. It's format is subject to change, but currently it is like this:
		1025
		1026	The key C<version> has to contain C<1>, otherwise the hash gets
		1027	emptied. All other keys are hostnames or IP addresses pointing to
		1028	hash-references. The key for these inner hash references is the
		1029	server path for which this cookie is meant, and the values are again
		1030	hash-references. The keys of those hash-references is the cookie name, and
		1031	the value, you guessed it, is another hash-reference, this time with the
		1032	key-value pairs from the cookie, except for C<expires> and C<max-age>,
		1033	which have been replaced by a C<_expires> key that contains the cookie
		1034	expiry timestamp.
		1035
		1036	Here is an example of a cookie jar with a single cookie, so you have a
		1037	chance of understanding the above paragraph:
		1038
		1039	{
		1040	version => 1,
		1041	"10.0.0.1" => {
		1042	"/" => {
		1043	"mythweb_id" => {
		1044	_expires => 1293917923,
		1045	value => "ooRung9dThee3ooyXooM1Ohm",
		1046	},
		1047	},
		1048	},
		1049	}
		1050
877	=item $date = AnyEvent::HTTP::format_date $timestamp	1051	=item $date = AnyEvent::HTTP::format_date $timestamp
878		1052
879	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP	1053	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
880	Date (RFC 2616).	1054	Date (RFC 2616).
881		1055
882	=item $timestamp = AnyEvent::HTTP::parse_date $date	1056	=item $timestamp = AnyEvent::HTTP::parse_date $date
883		1057
884	Takes a HTTP Date (RFC 2616) and returns the corresponding POSIX	1058	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) or a
		1059	bunch of minor variations of those, and returns the corresponding POSIX
885	timestamp, or C<undef> if the date cannot be parsed.	1060	timestamp, or C<undef> if the date cannot be parsed.
886		1061
887	=item $AnyEvent::HTTP::MAX_RECURSE	1062	=item $AnyEvent::HTTP::MAX_RECURSE
888		1063
889	The default value for the C<recurse> request parameter (default: C<10>).	1064	The default value for the C<recurse> request parameter (default: C<10>).
…		…
929	sub parse_date($) {	1104	sub parse_date($) {
930	my ($date) = @_;	1105	my ($date) = @_;
931		1106
932	my ($d, $m, $y, $H, $M, $S);	1107	my ($d, $m, $y, $H, $M, $S);
933		1108
934	if ($date =~ /^[A-Z][a-z][a-z], ([0-9][0-9]) ([A-Z][a-z][a-z]) ([0-9][0-9][0-9][0-9]) ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) GMT$/) {	1109	if ($date =~ /^[A-Z][a-z][a-z]+, ([0-9][0-9]?)[\- ]([A-Z][a-z][a-z])[\- ]([0-9][0-9][0-9][0-9]) ([0-9][0-9]?):([0-9][0-9]?):([0-9][0-9]?) GMT$/) {
935	# RFC 822/1123, required by RFC 2616	1110	# RFC 822/1123, required by RFC 2616 (with " ")
		1111	# cookie dates (with "-")
		1112
936	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);	1113	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
937		1114
938	} elsif ($date =~ /^[A-Z][a-z]+, ([0-9][0-9])-([A-Z][a-z][a-z])-([0-9][0-9]) ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) GMT$/) {	1115	} elsif ($date =~ /^[A-Z][a-z][a-z]+, ([0-9][0-9]?)-([A-Z][a-z][a-z])-([0-9][0-9]) ([0-9][0-9]?):([0-9][0-9]?):([0-9][0-9]?) GMT$/) {
939	# RFC 850	1116	# RFC 850
940	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);	1117	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
941		1118
942	} elsif ($date =~ /^[A-Z][a-z][a-z] ([A-Z][a-z][a-z]) ([0-9 ][0-9]) ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) ([0-9][0-9][0-9][0-9])$/) {	1119	} elsif ($date =~ /^[A-Z][a-z][a-z]+ ([A-Z][a-z][a-z]) ([0-9 ]?[0-9]) ([0-9][0-9]?):([0-9][0-9]?):([0-9][0-9]?) ([0-9][0-9][0-9][0-9])$/) {
943	# ISO C's asctime	1120	# ISO C's asctime
944	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);	1121	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
945	}	1122	}
946	# other formats fail in the loop below	1123	# other formats fail in the loop below
947		1124

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.66 by root, Fri Dec 31 06:18:30 2010 UTC vs. Revision 1.89 by root, Mon Jan 3 00:23:25 2011 UTC

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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.66 by root, Fri Dec 31 06:18:30 2010 UTC vs.
Revision 1.89 by root, Mon Jan 3 00:23:25 2011 UTC