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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.67 by root, Fri Dec 31 06:18:54 2010 UTC vs.
Revision 1.90 by root, Mon Jan 3 00:41:25 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).
		173
		174	You really should provide your own C<User-Agent:> header value that is
		175	appropriate for your program - I wouldn't be surprised if the default
		176	AnyEvent string gets blocked by webservers sooner or later.
160		177
161	=item timeout => $seconds	178	=item timeout => $seconds
162		179
163	The time-out to use for various stages - each connect attempt will reset	180	The time-out to use for various stages - each connect attempt will reset
164	the timeout, as will read or write activity, i.e. this is not an overall	181	the timeout, as will read or write activity, i.e. this is not an overall
…		…
174	C<$scheme> must be either missing, C<http> for HTTP or C<https> for	191	C<$scheme> must be either missing, C<http> for HTTP or C<https> for
175	HTTPS.	192	HTTPS.
176		193
177	=item body => $string	194	=item body => $string
178		195
179	The request body, usually empty. Will be-sent as-is (future versions of	196	The request body, usually empty. Will be sent as-is (future versions of
180	this module might offer more options).	197	this module might offer more options).
181		198
182	=item cookie_jar => $hash_ref	199	=item cookie_jar => $hash_ref
183		200
184	Passing this parameter enables (simplified) cookie-processing, loosely	201	Passing this parameter enables (simplified) cookie-processing, loosely
185	based on the original netscape specification.	202	based on the original netscape specification.
186		203
187	The C<$hash_ref> must be an (initially empty) hash reference which will	204	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	205	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	206	to persistent storage with something like JSON or Storable - see the
190	recommended, as expiry times are currently being ignored.	207	C<AnyEvent::HTTP::cookie_jar_expire> function if you wish to remove
		208	expired or session-only cookies, and also for documentation on the format
		209	of the cookie jar.
191		210
192	Note that this cookie implementation is not of very high quality, nor	211	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	212	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	213	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	214	working. Cookies are a privacy disaster, do not use them unless required
196	them unless required to.	215	to.
		216
		217	When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:>
		218	headers will be set and handled by this module, otherwise they will be
		219	left untouched.
197		220
198	=item tls_ctx => $scheme \| $tls_ctx	221	=item tls_ctx => $scheme \| $tls_ctx
199		222
200	Specifies the AnyEvent::TLS context to be used for https connections. This	223	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	224	parameter follows the same rules as the C<tls_ctx> parameter to
…		…
240		263
241	This callback is useful, among other things, to quickly reject unwanted	264	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	265	content, which, if it is supposed to be rare, can be faster than first
243	doing a C<HEAD> request.	266	doing a C<HEAD> request.
244		267
		268	The downside is that cancelling the request makes it impossible to re-use
		269	the connection. Also, the C<on_header> callback will not receive any
		270	trailer (headers sent after the response body).
		271
245	Example: cancel the request unless the content-type is "text/html".	272	Example: cancel the request unless the content-type is "text/html".
246		273
247	on_header => sub {	274	on_header => sub {
248	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	275	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
249	},	276	},
…		…
255	string instead of the body data.	282	string instead of the body data.
256		283
257	It has to return either true (in which case AnyEvent::HTTP will continue),	284	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	285	or false, in which case AnyEvent::HTTP will cancel the download (and call
259	the completion callback with an error code of C<598>).	286	the completion callback with an error code of C<598>).
		287
		288	The downside to cancelling the request is that it makes it impossible to
		289	re-use the connection.
260		290
261	This callback is useful when the data is too large to be held in memory	291	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	292	(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.	293	be extracted, or when the body should be processed incrementally.
264		294
…		…
290	If you think you need this, first have a look at C<on_body>, to see if	320	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.	321	that doesn't solve your problem in a better way.
292		322
293	=back	323	=back
294		324
295	Example: make a simple HTTP GET request for http://www.nethype.de/	325	Example: do a simple HTTP GET request for http://www.nethype.de/ and print
		326	the response body.
296		327
297	http_request GET => "http://www.nethype.de/", sub {	328	http_request GET => "http://www.nethype.de/", sub {
298	my ($body, $hdr) = @_;	329	my ($body, $hdr) = @_;
299	print "$body\n";	330	print "$body\n";
300	};	331	};
301		332
302	Example: make a HTTP HEAD request on https://www.google.com/, use a	333	Example: do a HTTP HEAD request on https://www.google.com/, use a
303	timeout of 30 seconds.	334	timeout of 30 seconds.
304		335
305	http_request	336	http_request
306	GET => "https://www.google.com",	337	GET => "https://www.google.com",
		338	headers => { "user-agent" => "MySearchClient 1.0" },
307	timeout => 30,	339	timeout => 30,
308	sub {	340	sub {
309	my ($body, $hdr) = @_;	341	my ($body, $hdr) = @_;
310	use Data::Dumper;	342	use Data::Dumper;
311	print Dumper $hdr;	343	print Dumper $hdr;
312	}	344	}
313	;	345	;
314		346
315	Example: make another simple HTTP GET request, but immediately try to	347	Example: do another simple HTTP GET request, but immediately try to
316	cancel it.	348	cancel it.
317		349
318	my $request = http_request GET => "http://www.nethype.de/", sub {	350	my $request = http_request GET => "http://www.nethype.de/", sub {
319	my ($body, $hdr) = @_;	351	my ($body, $hdr) = @_;
320	print "$body\n";	352	print "$body\n";
…		…
352	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	384	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
353		385
354	_slot_schedule $_[0];	386	_slot_schedule $_[0];
355	}	387	}
356		388
		389	#############################################################################
		390
		391	# expire cookies
		392	sub cookie_jar_expire($;$) {
		393	my ($jar, $session_end) = @_;
		394
		395	%$jar = () if $jar->{version} != 1;
		396
		397	my $anow = AE::now;
		398
		399	while (my ($chost, $paths) = each %$jar) {
		400	next unless ref $paths;
		401
		402	while (my ($cpath, $cookies) = each %$paths) {
		403	while (my ($cookie, $kv) = each %$cookies) {
		404	if (exists $kv->{_expires}) {
		405	delete $cookies->{$cookie}
		406	if $anow > $kv->{_expires};
		407	} elsif ($session_end) {
		408	delete $cookies->{$cookie};
		409	}
		410	}
		411
		412	delete $paths->{$cpath}
		413	unless %$cookies;
		414	}
		415
		416	delete $jar->{$chost}
		417	unless %$paths;
		418	}
		419	}
		420
		421	# extract cookies from jar
		422	sub cookie_jar_extract($$$$) {
		423	my ($jar, $uscheme, $uhost, $upath) = @_;
		424
		425	%$jar = () if $jar->{version} != 1;
		426
		427	my @cookies;
		428
		429	while (my ($chost, $paths) = each %$jar) {
		430	next unless ref $paths;
		431
		432	if ($chost =~ /^\./) {
		433	next unless $chost eq substr $uhost, -length $chost;
		434	} elsif ($chost =~ /\./) {
		435	next unless $chost eq $uhost;
		436	} else {
		437	next;
		438	}
		439
		440	while (my ($cpath, $cookies) = each %$paths) {
		441	next unless $cpath eq substr $upath, 0, length $cpath;
		442
		443	while (my ($cookie, $kv) = each %$cookies) {
		444	next if $uscheme ne "https" && exists $kv->{secure};
		445
		446	if (exists $kv->{_expires} and AE::now > $kv->{_expires}) {
		447	delete $cookies->{$cookie};
		448	next;
		449	}
		450
		451	my $value = $kv->{value};
		452
		453	if ($value =~ /[=;,[:space:]]/) {
		454	$value =~ s/([\\"])/\\$1/g;
		455	$value = "\"$value\"";
		456	}
		457
		458	push @cookies, "$cookie=$value";
		459	}
		460	}
		461	}
		462
		463	\@cookies
		464	}
		465
		466	# parse set_cookie header into jar
		467	sub cookie_jar_set_cookie($$$$) {
		468	my ($jar, $set_cookie, $uhost, $date) = @_;
		469
		470	my $anow = int AE::now;
		471	my $snow; # server-now
		472
		473	for ($set_cookie) {
		474	# parse NAME=VALUE
		475	my @kv;
		476
		477	# expires is not http-compliant in the original cookie-spec,
		478	# we support the official date format and some extensions
		479	while (
		480	m{
		481	\G\s*
		482	(?:
		483	expires \s=\s ([A-Z][a-z][a-z]+,\ [^,;]+)
		484	\| ([^=;,[:space:]]+) (?: \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) ) )?
		485	)
		486	}gcxsi
		487	) {
		488	my $name = $2;
		489	my $value = $4;
		490
		491	if (defined $1) {
		492	# expires
		493	$name = "expires";
		494	$value = $1;
		495	} elsif (defined $3) {
		496	# quoted
		497	$value = $3;
		498	$value =~ s/\\(.)/$1/gs;
		499	}
		500
		501	push @kv, lc $name, $value;
		502
		503	last unless /\G\s*;/gc;
		504	}
		505
		506	last unless @kv;
		507
		508	my $name = shift @kv;
		509	my %kv = (value => shift @kv, @kv);
		510
		511	if (exists $kv{"max-age"}) {
		512	$kv{_expires} = $anow + delete $kv{"max-age"};
		513	} elsif (exists $kv{expires}) {
		514	$snow \|\|= parse_date ($date) \|\| $anow;
		515	$kv{_expires} = $anow + (parse_date (delete $kv{expires}) - $snow);
		516	} else {
		517	delete $kv{_expires};
		518	}
		519
		520	my $cdom;
		521	my $cpath = (delete $kv{path}) \|\| "/";
		522
		523	if (exists $kv{domain}) {
		524	$cdom = delete $kv{domain};
		525
		526	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		527
		528	next if $cdom =~ /\.$/;
		529
		530	# this is not rfc-like and not netscape-like. go figure.
		531	my $ndots = $cdom =~ y/.//;
		532	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		533	} else {
		534	$cdom = $uhost;
		535	}
		536
		537	# store it
		538	$jar->{version} = 1;
		539	$jar->{lc $cdom}{$cpath}{$name} = \%kv;
		540
		541	redo if /\G\s*,/gc;
		542	}
		543	}
		544
357	# continue to parse $_ for headers and place them into the arg	545	# continue to parse $_ for headers and place them into the arg
358	sub parse_hdr() {	546	sub parse_hdr() {
359	my %hdr;	547	my %hdr;
360		548
361	# things seen, not parsed:	549	# things seen, not parsed:
…		…
423	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });	611	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
424		612
425	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	613	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
426	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });	614	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
427		615
428	my $uhost = $1;	616	my $uhost = lc $1;
429	$uport = $2 if defined $2;	617	$uport = $2 if defined $2;
430		618
431	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"	619	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
432	unless exists $hdr{host};	620	unless exists $hdr{host};
433		621
…		…
436		624
437	$upath =~ s%^/?%/%;	625	$upath =~ s%^/?%/%;
438		626
439	# cookie processing	627	# cookie processing
440	if (my $jar = $arg{cookie_jar}) {	628	if (my $jar = $arg{cookie_jar}) {
441	%$jar = () if $jar->{version} != 1;	629	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
442		630
443	my @cookie;
444
445	while (my ($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	631	$hdr{cookie} = join "; ", @$cookies
467	if @cookie;	632	if @$cookies;
468	}	633	}
469		634
470	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	635	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
471		636
472	if ($proxy) {	637	if ($proxy) {
…		…
475	$rscheme = "http" unless defined $rscheme;	640	$rscheme = "http" unless defined $rscheme;
476		641
477	# don't support https requests over https-proxy transport,	642	# don't support https requests over https-proxy transport,
478	# can't be done with tls as spec'ed, unless you double-encrypt.	643	# can't be done with tls as spec'ed, unless you double-encrypt.
479	$rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";	644	$rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";
		645
		646	$rhost = lc $rhost;
		647	$rscheme = lc $rscheme;
480	} else {	648	} else {
481	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	649	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
482	}	650	}
483		651
484	# leave out fragment and query string, just a heuristic	652	# leave out fragment and query string, just a heuristic
…		…
486	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};	654	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
487		655
488	$hdr{"content-length"} = length $arg{body}	656	$hdr{"content-length"} = length $arg{body}
489	if length $arg{body} \|\| $method ne "GET";	657	if length $arg{body} \|\| $method ne "GET";
490		658
491	$hdr{connection} = "close TE";	659	my $idempotent = $method =~ /^(?:GET\|HEAD\|PUT\|DELETE\|OPTIONS\|TRACE)$/;
		660
		661	# default value for keepalive is true iff the request is for an idempotent method
		662	my $keepalive = exists $arg{keepalive}
		663	? $arg{keepalive}*1
		664	: $idempotent ? $PERSISTENT_TIMEOUT : 0;
		665
		666	$hdr{connection} = ($keepalive ? "" : "close ") . "Te"; #1.1
492	$hdr{te} = "trailers" unless exists $hdr{te};	667	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
493		668
494	my %state = (connect_guard => 1);	669	my %state = (connect_guard => 1);
495		670
496	_get_slot $uhost, sub {	671	my $ae_error = 595; # connecting
497	$state{slot_guard} = shift;
498		672
		673	# handle actual, non-tunneled, request
		674	my $handle_actual_request = sub {
		675	$ae_error = 596; # request phase
		676
		677	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
		678
		679	# send request
		680	$state{handle}->push_write (
		681	"$method $rpath HTTP/1.1\015\012"
		682	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
		683	. "\015\012"
		684	. (delete $arg{body})
		685	);
		686
		687	# return if error occured during push_write()
499	return unless $state{connect_guard};	688	return unless %state;
500		689
501	my $connect_cb = sub {	690	# reduce memory usage, save a kitten, also re-use it for the response headers.
502	$state{fh} = shift	691	%hdr = ();
		692
		693	# status line and headers
		694	$state{read_response} = sub {
		695	for ("$_[1]") {
		696	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		697
		698	/^HTTP\/0([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]) )? \012/gxci
		699	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
		700
		701	# 100 Continue handling
		702	# should not happen as we don't send expect: 100-continue,
		703	# but we handle it just in case.
		704	# since we send the request body regardless, if we get an error
		705	# we are out of-sync, which we currently do NOT handle correctly.
		706	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
		707	if $2 eq 100;
		708
		709	push @pseudo,
		710	HTTPVersion => $1,
		711	Status => $2,
		712	Reason => $3,
503	or do {	713	;
504	my $err = "$!";	714
		715	my $hdr = parse_hdr
		716	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		717
		718	%hdr = (%$hdr, @pseudo);
		719	}
		720
		721	# redirect handling
		722	# microsoft and other shitheads don't give a shit for following standards,
		723	# try to support some common forms of broken Location headers.
		724	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		725	$hdr{location} =~ s/^\.\/+//;
		726
		727	my $url = "$rscheme://$uhost:$uport";
		728
		729	unless ($hdr{location} =~ s/^\///) {
		730	$url .= $upath;
		731	$url =~ s/\/[^\/]*$//;
		732	}
		733
		734	$hdr{location} = "$url/$hdr{location}";
		735	}
		736
		737	my $redirect;
		738
		739	if ($recurse) {
		740	my $status = $hdr{Status};
		741
		742	# industry standard is to redirect POST as GET for
		743	# 301, 302 and 303, in contrast to HTTP/1.0 and 1.1.
		744	# also, the UA should ask the user for 301 and 307 and POST,
		745	# industry standard seems to be to simply follow.
		746	# we go with the industry standard.
		747	if ($status == 301 or $status == 302 or $status == 303) {
		748	# HTTP/1.1 is unclear on how to mutate the method
		749	$method = "GET" unless $method eq "HEAD";
		750	$redirect = 1;
		751	} elsif ($status == 307) {
		752	$redirect = 1;
		753	}
		754	}
		755
		756	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
		757	my $may_keep_alive = $_[3];
		758
		759	$state{handle}->destroy if $state{handle};
505	%state = ();	760	%state = ();
506	return $cb->(undef, { @pseudo, Status => 599, Reason => $err });	761
		762	if (defined $_[1]) {
		763	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		764	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		765	}
		766
		767	# set-cookie processing
		768	if ($arg{cookie_jar}) {
		769	cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost, $hdr{date};
		770	}
		771
		772	if ($redirect && exists $hdr{location}) {
		773	# we ignore any errors, as it is very common to receive
		774	# Content-Length != 0 but no actual body
		775	# we also access %hdr, as $_[1] might be an erro
		776	http_request (
		777	$method => $hdr{location},
		778	%arg,
		779	recurse => $recurse - 1,
		780	Redirect => [$_[0], \%hdr],
		781	$cb);
		782	} else {
		783	$cb->($_[0], \%hdr);
		784	}
		785	};
		786
		787	$ae_error = 597; # body phase
		788
		789	my $len = $hdr{"content-length"};
		790
		791	# body handling, many different code paths
		792	# - no body expected
		793	# - want_body_handle
		794	# - te chunked
		795	# - 2x length known (with or without on_body)
		796	# - 2x length not known (with or without on_body)
		797	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		798	$finish->(undef, 598 => "Request cancelled by on_header");
		799	} elsif (
		800	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		801	or $method eq "HEAD"
		802	or (defined $len && $len == 0) # == 0, not !, because "0 " is true
		803	) {
		804	# no body
		805	$finish->("", undef, undef, 1);
		806
		807	} elsif (!$redirect && $arg{want_body_handle}) {
		808	$_[0]->on_eof (undef);
		809	$_[0]->on_error (undef);
		810	$_[0]->on_read (undef);
		811
		812	$finish->(delete $state{handle});
		813
		814	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		815	my $cl = 0;
		816	my $body = undef;
		817	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		818
		819	$state{read_chunk} = sub {
		820	$_[1] =~ /^([0-9a-fA-F]+)/
		821	or $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		822
		823	my $len = hex $1;
		824
		825	if ($len) {
		826	$cl += $len;
		827
		828	$_[0]->push_read (chunk => $len, sub {
		829	$on_body->($_[1], \%hdr)
		830	or return $finish->(undef, 598 => "Request cancelled by on_body");
		831
		832	$_[0]->push_read (line => sub {
		833	length $_[1]
		834	and return $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		835	$_[0]->push_read (line => $state{read_chunk});
		836	});
		837	});
		838	} else {
		839	$hdr{"content-length"} \|\|= $cl;
		840
		841	$_[0]->push_read (line => $qr_nlnl, sub {
		842	if (length $_[1]) {
		843	for ("$_[1]") {
		844	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		845
		846	my $hdr = parse_hdr
		847	or return $finish->(undef, $ae_error => "Garbled response trailers");
		848
		849	%hdr = (%hdr, %$hdr);
		850	}
		851	}
		852
		853	$finish->($body, undef, undef, 1);
		854	});
		855	}
507	};	856	};
508		857
509	pop; # free memory, save a tree	858	$_[0]->push_read (line => $state{read_chunk});
510		859
		860	} elsif ($arg{on_body}) {
		861	if (defined $len) {
		862	$_[0]->on_read (sub {
		863	$len -= length $_[0]{rbuf};
		864
		865	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		866	or return $finish->(undef, 598 => "Request cancelled by on_body");
		867
		868	$len > 0
		869	or $finish->("", undef, undef, 1);
		870	});
		871	} else {
		872	$_[0]->on_eof (sub {
		873	$finish->("");
		874	});
		875	$_[0]->on_read (sub {
		876	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		877	or $finish->(undef, 598 => "Request cancelled by on_body");
		878	});
		879	}
		880	} else {
		881	$_[0]->on_eof (undef);
		882
		883	if (defined $len) {
		884	$_[0]->on_read (sub {
		885	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
		886	if $len <= length $_[0]{rbuf};
		887	});
		888	} else {
		889	$_[0]->on_error (sub {
		890	($! == Errno::EPIPE \|\| !$!)
		891	? $finish->(delete $_[0]{rbuf})
		892	: $finish->(undef, $ae_error => $_[2]);
		893	});
		894	$_[0]->on_read (sub { });
		895	}
		896	}
		897	};
		898
		899	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
		900	};
		901
		902	my $connect_cb = sub {
		903	$state{fh} = shift
		904	or do {
		905	my $err = "$!";
		906	%state = ();
		907	return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err });
		908	};
		909
511	return unless delete $state{connect_guard};	910	return unless delete $state{connect_guard};
512		911
513	# get handle	912	# get handle
514	$state{handle} = new AnyEvent::Handle	913	$state{handle} = new AnyEvent::Handle
515	fh => $state{fh},	914	fh => $state{fh},
516	peername => $rhost,	915	peername => $rhost,
517	tls_ctx => $arg{tls_ctx},	916	tls_ctx => $arg{tls_ctx},
518	# these need to be reconfigured on keepalive handles	917	# these need to be reconfigured on keepalive handles
519	timeout => $timeout,	918	timeout => $timeout,
520	on_error => sub {	919	on_error => sub {
521	%state = ();	920	%state = ();
522	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });	921	$cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] });
523	},	922	},
524	on_eof => sub {	923	on_eof => sub {
525	%state = ();	924	%state = ();
526	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });	925	$cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" });
527	},	926	},
528	;	927	;
529		928
530	# limit the number of persistent connections	929	# limit the number of persistent connections
531	# keepalive not yet supported	930	# keepalive not yet supported
532	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	931	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
533	# ++$KA_COUNT{$_[1]};	932	# ++$KA_COUNT{$_[1]};
534	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {	933	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
535	# --$KA_COUNT{$_[1]}	934	# --$KA_COUNT{$_[1]}
536	# };	935	# };
537	# $hdr{connection} = "keep-alive";	936	# $hdr{connection} = "keep-alive";
538	# } else {
539	# delete $hdr{connection};
540	# }	937	# }
541		938
542	$state{handle}->starttls ("connect") if $rscheme eq "https";	939	$state{handle}->starttls ("connect") if $rscheme eq "https";
543		940
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	$_[1] =~ /^([0-9a-fA-F]+)/
725	or $finish->(undef, 599 => "Garbled chunked transfer encoding");
726
727	my $len = hex $1;
728
729	if ($len) {
730	$_[0]->push_read (chunk => hex $1, sub {
731	$on_body->($_[1], \%hdr)
732	or return $finish->(undef, 598 => "Request cancelled by on_body");
733
734	$_[0]->push_read (line => sub {
735	length $_[1]
736	and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
737	$_[0]->push_read (line => $read_chunk);
738	});
739	});
740	} else {
741	$_[0]->push_read (line => $qr_nlnl, sub {
742	if (length $_[1]) {
743	for ("$_[1]") {
744	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
745
746	my $hdr = parse_hdr
747	or return $finish->(undef, 599 => "Garbled response trailers");
748
749	%hdr = (%hdr, %$hdr);
750	}
751	}
752
753	$finish->($body, undef, undef, 1);
754	});
755	}
756	};
757
758	$_[0]->push_read (line => $read_chunk);
759
760	} elsif ($arg{on_body}) {
761	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
762
763	if ($len) {
764	$_[0]->on_read (sub {
765	$len -= length $_[0]{rbuf};
766
767	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
768	or return $finish->(undef, 598 => "Request cancelled by on_body");
769
770	$len > 0
771	or $finish->("", undef, undef, 1);
772	});
773	} else {
774	$_[0]->on_eof (sub {
775	$finish->("");
776	});
777	$_[0]->on_read (sub {
778	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
779	or $finish->(undef, 598 => "Request cancelled by on_body");
780	});
781	}
782	} else {
783	$_[0]->on_eof (undef);
784
785	if ($len) {
786	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
787	$_[0]->on_read (sub {
788	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
789	if $len <= length $_[0]{rbuf};
790	});
791	} else {
792	$_[0]->on_error (sub {
793	($! == Errno::EPIPE \|\| !$!)
794	? $finish->(delete $_[0]{rbuf})
795	: $finish->(undef, 599 => $_[2]);
796	});
797	$_[0]->on_read (sub { });
798	}
799	}
800	}
801	});
802	};
803
804	# now handle proxy-CONNECT method	941	# now handle proxy-CONNECT method
805	if ($proxy && $uscheme eq "https") {	942	if ($proxy && $uscheme eq "https") {
806	# oh dear, we have to wrap it into a connect request	943	# oh dear, we have to wrap it into a connect request
807		944
808	# maybe re-use $uauthority with patched port?	945	# maybe re-use $uauthority with patched port?
809	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");	946	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012\015\012");
810	$state{handle}->push_read (line => $qr_nlnl, sub {	947	$state{handle}->push_read (line => $qr_nlnl, sub {
811	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	948	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
812	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));	949	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
813		950
814	if ($2 == 200) {	951	if ($2 == 200) {
815	$rpath = $upath;	952	$rpath = $upath;
816	&$handle_actual_request;	953	$handle_actual_request->();
817	} else {	954	} else {
818	%state = ();	955	%state = ();
819	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });	956	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
820	}
821	});	957	}
822	} else {
823	&$handle_actual_request;
824	}	958	});
		959	} else {
		960	$handle_actual_request->();
825	};	961	}
		962	};
		963
		964	_get_slot $uhost, sub {
		965	$state{slot_guard} = shift;
		966
		967	return unless $state{connect_guard};
826		968
827	my $tcp_connect = $arg{tcp_connect}	969	my $tcp_connect = $arg{tcp_connect}
828	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };	970	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
829		971
830	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });	972	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
831
832	};	973	};
833		974
834	defined wantarray && AnyEvent::Util::guard { %state = () }	975	defined wantarray && AnyEvent::Util::guard { %state = () }
835	}	976	}
836		977
…		…
871	string of the form C<http://host:port> (optionally C<https:...>), croaks	1012	string of the form C<http://host:port> (optionally C<https:...>), croaks
872	otherwise.	1013	otherwise.
873		1014
874	To clear an already-set proxy, use C<undef>.	1015	To clear an already-set proxy, use C<undef>.
875		1016
		1017	=item AnyEvent::HTTP::cookie_jar_expire $jar[, $session_end]
		1018
		1019	Remove all cookies from the cookie jar that have been expired. If
		1020	C<$session_end> is given and true, then additionally remove all session
		1021	cookies.
		1022
		1023	You should call this function (with a true C<$session_end>) before you
		1024	save cookies to disk, and you should call this function after loading them
		1025	again. If you have a long-running program you can additonally call this
		1026	function from time to time.
		1027
		1028	A cookie jar is initially an empty hash-reference that is managed by this
		1029	module. It's format is subject to change, but currently it is like this:
		1030
		1031	The key C<version> has to contain C<1>, otherwise the hash gets
		1032	emptied. All other keys are hostnames or IP addresses pointing to
		1033	hash-references. The key for these inner hash references is the
		1034	server path for which this cookie is meant, and the values are again
		1035	hash-references. The keys of those hash-references is the cookie name, and
		1036	the value, you guessed it, is another hash-reference, this time with the
		1037	key-value pairs from the cookie, except for C<expires> and C<max-age>,
		1038	which have been replaced by a C<_expires> key that contains the cookie
		1039	expiry timestamp.
		1040
		1041	Here is an example of a cookie jar with a single cookie, so you have a
		1042	chance of understanding the above paragraph:
		1043
		1044	{
		1045	version => 1,
		1046	"10.0.0.1" => {
		1047	"/" => {
		1048	"mythweb_id" => {
		1049	_expires => 1293917923,
		1050	value => "ooRung9dThee3ooyXooM1Ohm",
		1051	},
		1052	},
		1053	},
		1054	}
		1055
876	=item $date = AnyEvent::HTTP::format_date $timestamp	1056	=item $date = AnyEvent::HTTP::format_date $timestamp
877		1057
878	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP	1058	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
879	Date (RFC 2616).	1059	Date (RFC 2616).
880		1060
881	=item $timestamp = AnyEvent::HTTP::parse_date $date	1061	=item $timestamp = AnyEvent::HTTP::parse_date $date
882		1062
883	Takes a HTTP Date (RFC 2616) and returns the corresponding POSIX	1063	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) or a
		1064	bunch of minor variations of those, and returns the corresponding POSIX
884	timestamp, or C<undef> if the date cannot be parsed.	1065	timestamp, or C<undef> if the date cannot be parsed.
885		1066
886	=item $AnyEvent::HTTP::MAX_RECURSE	1067	=item $AnyEvent::HTTP::MAX_RECURSE
887		1068
888	The default value for the C<recurse> request parameter (default: C<10>).	1069	The default value for the C<recurse> request parameter (default: C<10>).
…		…
928	sub parse_date($) {	1109	sub parse_date($) {
929	my ($date) = @_;	1110	my ($date) = @_;
930		1111
931	my ($d, $m, $y, $H, $M, $S);	1112	my ($d, $m, $y, $H, $M, $S);
932		1113
933	if ($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$/) {	1114	if ($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$/) {
934	# RFC 822/1123, required by RFC 2616	1115	# RFC 822/1123, required by RFC 2616 (with " ")
		1116	# cookie dates (with "-")
		1117
935	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);	1118	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
936		1119
937	} elsif ($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$/) {	1120	} elsif ($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$/) {
938	# RFC 850	1121	# RFC 850
939	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);	1122	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
940		1123
941	} elsif ($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])$/) {	1124	} elsif ($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])$/) {
942	# ISO C's asctime	1125	# ISO C's asctime
943	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);	1126	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
944	}	1127	}
945	# other formats fail in the loop below	1128	# other formats fail in the loop below
946		1129

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.67 by root, Fri Dec 31 06:18:54 2010 UTC vs. Revision 1.90 by root, Mon Jan 3 00:41:25 2011 UTC

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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.67 by root, Fri Dec 31 06:18:54 2010 UTC vs.
Revision 1.90 by root, Mon Jan 3 00:41:25 2011 UTC