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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.56 by root, Mon Sep 6 05:30:54 2010 UTC vs.
Revision 1.80 by root, Sat Jan 1 21:51:22 2011 UTC

…		…
43		43
44	use Errno ();	44	use Errno ();
45		45
46	use AnyEvent 5.0 ();	46	use AnyEvent 5.0 ();
47	use AnyEvent::Util ();	47	use AnyEvent::Util ();
48	use AnyEvent::Socket ();
49	use AnyEvent::Handle ();	48	use AnyEvent::Handle ();
50		49
51	use base Exporter::;	50	use base Exporter::;
52		51
53	our $VERSION = '1.45';	52	our $VERSION = '1.5';
54		53
55	our @EXPORT = qw(http_get http_post http_head http_request);	54	our @EXPORT = qw(http_get http_post http_head http_request);
56		55
57	our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";	56	our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";
58	our $MAX_RECURSE = 10;	57	our $MAX_RECURSE = 10;
…		…
92	must be an absolute http or https URL.	91	must be an absolute http or https URL.
93		92
94	When called in void context, nothing is returned. In other contexts,	93	When called in void context, nothing is returned. In other contexts,
95	C<http_request> returns a "cancellation guard" - you have to keep the	94	C<http_request> returns a "cancellation guard" - you have to keep the
96	object at least alive until the callback get called. If the object gets	95	object at least alive until the callback get called. If the object gets
97	destroyed before the callbakc is called, the request will be cancelled.	96	destroyed before the callback is called, the request will be cancelled.
98		97
99	The callback will be called with the response body data as first argument	98	The callback will be called with the response body data as first argument
100	(or C<undef> if an error occured), and a hash-ref with response headers as	99	(or C<undef> if an error occured), and a hash-ref with response headers
101	second argument.	100	(and trailers) as second argument.
102		101
103	All the headers in that hash are lowercased. In addition to the response	102	All the headers in that hash are lowercased. In addition to the response
104	headers, the "pseudo-headers" (uppercase to avoid clashing with possible	103	headers, the "pseudo-headers" (uppercase to avoid clashing with possible
105	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the	104	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the
106	three parts of the HTTP Status-Line of the same name.	105	three parts of the HTTP Status-Line of the same name. If an error occurs
		106	during the body phase of a request, then the original C<Status> and
		107	C<Reason> values from the header are available as C<OrigStatus> and
		108	C<OrigReason>.
107		109
108	The pseudo-header C<URL> contains the actual URL (which can differ from	110	The pseudo-header C<URL> contains the actual URL (which can differ from
109	the requested URL when following redirects - for example, you might get	111	the requested URL when following redirects - for example, you might get
110	an error that your URL scheme is not supported even though your URL is a	112	an error that your URL scheme is not supported even though your URL is a
111	valid http URL because it redirected to an ftp URL, in which case you can	113	valid http URL because it redirected to an ftp URL, in which case you can
…		…
120		122
121	If the server sends a header multiple times, then their contents will be	123	If the server sends a header multiple times, then their contents will be
122	joined together with a comma (C<,>), as per the HTTP spec.	124	joined together with a comma (C<,>), as per the HTTP spec.
123		125
124	If an internal error occurs, such as not being able to resolve a hostname,	126	If an internal error occurs, such as not being able to resolve a hostname,
125	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<59x>	127	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be
126	(usually C<599>) and the C<Reason> pseudo-header will contain an error	128	C<590>-C<599> and the C<Reason> pseudo-header will contain an error
127	message.	129	message. Currently the following status codes are used:
		130
		131	=over 4
		132
		133	=item 595 - errors during connection etsbalishment, proxy handshake.
		134
		135	=item 596 - errors during TLS negotiation, request sending and header processing.
		136
		137	=item 597 - errors during body receiving or processing.
		138
		139	=item 598 - user aborted request via C<on_header> or C<on_body>.
		140
		141	=item 599 - other, usually nonretryable, errors (garbled URL etc.).
		142
		143	=back
128		144
129	A typical callback might look like this:	145	A typical callback might look like this:
130		146
131	sub {	147	sub {
132	my ($body, $hdr) = @_;	148	my ($body, $hdr) = @_;
…		…
148	Whether to recurse requests or not, e.g. on redirects, authentication	164	Whether to recurse requests or not, e.g. on redirects, authentication
149	retries and so on, and how often to do so.	165	retries and so on, and how often to do so.
150		166
151	=item headers => hashref	167	=item headers => hashref
152		168
153	The request headers to use. Currently, C<http_request> may provide its	169	The request headers to use. Currently, C<http_request> may provide its own
154	own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers	170	C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers and
155	and will provide defaults for C<User-Agent:> and C<Referer:> (this can be	171	will provide defaults at least for C<TE:>, C<Referer:> and C<User-Agent:>
156	suppressed by using C<undef> for these headers in which case they won't be	172	(this can be suppressed by using C<undef> for these headers in which case
157	sent at all).	173	they won't be sent at all).
158		174
159	=item timeout => $seconds	175	=item timeout => $seconds
160		176
161	The time-out to use for various stages - each connect attempt will reset	177	The time-out to use for various stages - each connect attempt will reset
162	the timeout, as will read or write activity, i.e. this is not an overall	178	the timeout, as will read or write activity, i.e. this is not an overall
…		…
172	C<$scheme> must be either missing, C<http> for HTTP or C<https> for	188	C<$scheme> must be either missing, C<http> for HTTP or C<https> for
173	HTTPS.	189	HTTPS.
174		190
175	=item body => $string	191	=item body => $string
176		192
177	The request body, usually empty. Will be-sent as-is (future versions of	193	The request body, usually empty. Will be sent as-is (future versions of
178	this module might offer more options).	194	this module might offer more options).
179		195
180	=item cookie_jar => $hash_ref	196	=item cookie_jar => $hash_ref
181		197
182	Passing this parameter enables (simplified) cookie-processing, loosely	198	Passing this parameter enables (simplified) cookie-processing, loosely
183	based on the original netscape specification.	199	based on the original netscape specification.
184		200
185	The C<$hash_ref> must be an (initially empty) hash reference which will	201	The C<$hash_ref> must be an (initially empty) hash reference which
186	get updated automatically. It is possible to save the cookie_jar to	202	will get updated automatically. It is possible to save the cookie jar
187	persistent storage with something like JSON or Storable, but this is not	203	to persistent storage with something like JSON or Storable - see the
188	recommended, as expiry times are currently being ignored.	204	C<AnyEvent::HTTP::cookie_jar_expire> function if you wish to remove
		205	expired or session-only cookies, and also for documentation on the format
		206	of the cookie jar.
189		207
190	Note that this cookie implementation is not of very high quality, nor	208	Note that this cookie implementation is not meant to be complete. If
191	meant to be complete. If you want complete cookie management you have to	209	you want complete cookie management you have to do that on your
192	do that on your own. C<cookie_jar> is meant as a quick fix to get some	210	own. C<cookie_jar> is meant as a quick fix to get most cookie-using sites
193	cookie-using sites working. Cookies are a privacy disaster, do not use	211	working. Cookies are a privacy disaster, do not use them unless required
194	them unless required to.	212	to.
		213
		214	When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:>
		215	headers will be set and handled by this module, otherwise they will be
		216	left untouched.
195		217
196	=item tls_ctx => $scheme \| $tls_ctx	218	=item tls_ctx => $scheme \| $tls_ctx
197		219
198	Specifies the AnyEvent::TLS context to be used for https connections. This	220	Specifies the AnyEvent::TLS context to be used for https connections. This
199	parameter follows the same rules as the C<tls_ctx> parameter to	221	parameter follows the same rules as the C<tls_ctx> parameter to
…		…
212	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>	234	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>
213	and behaves exactly the same way (e.g. it has to provide a	235	and behaves exactly the same way (e.g. it has to provide a
214	timeout). See the description for the C<$prepare_cb> argument of	236	timeout). See the description for the C<$prepare_cb> argument of
215	C<AnyEvent::Socket::tcp_connect> for details.	237	C<AnyEvent::Socket::tcp_connect> for details.
216		238
		239	=item tcp_connect => $callback->($host, $service, $connect_cb, $prepare_cb)
		240
		241	In even rarer cases you want total control over how AnyEvent::HTTP
		242	establishes connections. Normally it uses L<AnyEvent::Socket::tcp_connect>
		243	to do this, but you can provide your own C<tcp_connect> function -
		244	obviously, it has to follow the same calling conventions, except that it
		245	may always return a connection guard object.
		246
		247	There are probably lots of weird uses for this function, starting from
		248	tracing the hosts C<http_request> actually tries to connect, to (inexact
		249	but fast) host => IP address caching or even socks protocol support.
		250
217	=item on_header => $callback->($headers)	251	=item on_header => $callback->($headers)
218		252
219	When specified, this callback will be called with the header hash as soon	253	When specified, this callback will be called with the header hash as soon
220	as headers have been successfully received from the remote server (not on	254	as headers have been successfully received from the remote server (not on
221	locally-generated errors).	255	locally-generated errors).
…		…
226		260
227	This callback is useful, among other things, to quickly reject unwanted	261	This callback is useful, among other things, to quickly reject unwanted
228	content, which, if it is supposed to be rare, can be faster than first	262	content, which, if it is supposed to be rare, can be faster than first
229	doing a C<HEAD> request.	263	doing a C<HEAD> request.
230		264
		265	The downside is that cancelling the request makes it impossible to re-use
		266	the connection. Also, the C<on_header> callback will not receive any
		267	trailer (headers sent after the response body).
		268
231	Example: cancel the request unless the content-type is "text/html".	269	Example: cancel the request unless the content-type is "text/html".
232		270
233	on_header => sub {	271	on_header => sub {
234	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	272	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
235	},	273	},
…		…
241	string instead of the body data.	279	string instead of the body data.
242		280
243	It has to return either true (in which case AnyEvent::HTTP will continue),	281	It has to return either true (in which case AnyEvent::HTTP will continue),
244	or false, in which case AnyEvent::HTTP will cancel the download (and call	282	or false, in which case AnyEvent::HTTP will cancel the download (and call
245	the completion callback with an error code of C<598>).	283	the completion callback with an error code of C<598>).
		284
		285	The downside to cancelling the request is that it makes it impossible to
		286	re-use the connection.
246		287
247	This callback is useful when the data is too large to be held in memory	288	This callback is useful when the data is too large to be held in memory
248	(so the callback writes it to a file) or when only some information should	289	(so the callback writes it to a file) or when only some information should
249	be extracted, or when the body should be processed incrementally.	290	be extracted, or when the body should be processed incrementally.
250		291
…		…
276	If you think you need this, first have a look at C<on_body>, to see if	317	If you think you need this, first have a look at C<on_body>, to see if
277	that doesn't solve your problem in a better way.	318	that doesn't solve your problem in a better way.
278		319
279	=back	320	=back
280		321
281	Example: make a simple HTTP GET request for http://www.nethype.de/	322	Example: do a simple HTTP GET request for http://www.nethype.de/ and print
		323	the response body.
282		324
283	http_request GET => "http://www.nethype.de/", sub {	325	http_request GET => "http://www.nethype.de/", sub {
284	my ($body, $hdr) = @_;	326	my ($body, $hdr) = @_;
285	print "$body\n";	327	print "$body\n";
286	};	328	};
287		329
288	Example: make a HTTP HEAD request on https://www.google.com/, use a	330	Example: do a HTTP HEAD request on https://www.google.com/, use a
289	timeout of 30 seconds.	331	timeout of 30 seconds.
290		332
291	http_request	333	http_request
292	GET => "https://www.google.com",	334	GET => "https://www.google.com",
293	timeout => 30,	335	timeout => 30,
…		…
296	use Data::Dumper;	338	use Data::Dumper;
297	print Dumper $hdr;	339	print Dumper $hdr;
298	}	340	}
299	;	341	;
300		342
301	Example: make another simple HTTP GET request, but immediately try to	343	Example: do another simple HTTP GET request, but immediately try to
302	cancel it.	344	cancel it.
303		345
304	my $request = http_request GET => "http://www.nethype.de/", sub {	346	my $request = http_request GET => "http://www.nethype.de/", sub {
305	my ($body, $hdr) = @_;	347	my ($body, $hdr) = @_;
306	print "$body\n";	348	print "$body\n";
…		…
338	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	380	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
339		381
340	_slot_schedule $_[0];	382	_slot_schedule $_[0];
341	}	383	}
342		384
343	our $qr_nl = qr{\015?\012};	385	#############################################################################
		386
		387	# expire cookies
		388	sub cookie_jar_expire($;$) {
		389	my ($jar, $session_end) = @_;
		390
		391	%$jar = () if $jar->{version} != 1;
		392
		393	my $anow = AE::now;
		394
		395	while (my ($chost, $paths) = each %$jar) {
		396	next unless ref $paths;
		397
		398	while (my ($cpath, $cookies) = each %$paths) {
		399	while (my ($cookie, $kv) = each %$cookies) {
		400	if (exists $kv->{_expires}) {
		401	delete $cookies->{$cookie}
		402	if $anow > $kv->{_expires};
		403	} elsif ($session_end) {
		404	delete $cookies->{$cookie};
		405	}
		406	}
		407
		408	delete $paths->{$cpath}
		409	unless %$cookies;
		410	}
		411
		412	delete $jar->{$chost}
		413	unless %$paths;
		414	}
		415	}
		416
		417	# extract cookies from jar
		418	sub cookie_jar_extract($$$$) {
		419	my ($jar, $uscheme, $uhost, $upath) = @_;
		420
		421	%$jar = () if $jar->{version} != 1;
		422
		423	my @cookies;
		424
		425	while (my ($chost, $paths) = each %$jar) {
		426	next unless ref $paths;
		427
		428	if ($chost =~ /^\./) {
		429	next unless $chost eq substr $uhost, -length $chost;
		430	} elsif ($chost =~ /\./) {
		431	next unless $chost eq $uhost;
		432	} else {
		433	next;
		434	}
		435
		436	while (my ($cpath, $cookies) = each %$paths) {
		437	next unless $cpath eq substr $upath, 0, length $cpath;
		438
		439	while (my ($cookie, $kv) = each %$cookies) {
		440	next if $uscheme ne "https" && exists $kv->{secure};
		441
		442	if (exists $kv->{_expires} and AE::now > $kv->{_expires}) {
		443	delete $cookies->{$cookie};
		444	next;
		445	}
		446
		447	my $value = $kv->{value};
		448
		449	if ($value =~ /[=;,[:space:]]/) {
		450	$value =~ s/([\\"])/\\$1/g;
		451	$value = "\"$value\"";
		452	}
		453
		454	push @cookies, "$cookie=$value";
		455	}
		456	}
		457	}
		458
		459	\@cookies
		460	}
		461
		462	# parse set_cookie header into jar
		463	sub cookie_jar_set_cookie($$$$) {
		464	my ($jar, $set_cookie, $uhost, $date) = @_;
		465
		466	my $anow = int AE::now;
		467	my $snow; # server-now
		468
		469	for ($set_cookie) {
		470	# parse NAME=VALUE
		471	my @kv;
		472
		473	# expires is not http-compliant in the original cookie-spec,
		474	# we support the official date format and some extensions
		475	while (
		476	m{
		477	\G\s*
		478	(?:
		479	expires \s=\s ([A-Z][a-z][a-z]+,\ [^,;]+)
		480	\| ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )
		481	)
		482	}gcxsi
		483	) {
		484	my $name = $2;
		485	my $value = $4;
		486
		487	unless (defined $name) {
		488	# expires
		489	$name = "expires";
		490	$value = $1;
		491	} elsif (!defined $value) {
		492	# quoted
		493	$value = $3;
		494	$value =~ s/\\(.)/$1/gs;
		495	}
		496
		497	push @kv, lc $name, $value;
		498
		499	last unless /\G\s*;/gc;
		500	}
		501
		502	last unless @kv;
		503
		504	my $name = shift @kv;
		505	my %kv = (value => shift @kv, @kv);
		506
		507	if (exists $kv{"max-age"}) {
		508	$kv{_expires} = $anow + delete $kv{"max-age"};
		509	} elsif (exists $kv{expires}) {
		510	$snow \|\|= parse_date ($date) \|\| $anow;
		511	$kv{_expires} = $anow + (parse_date (delete $kv{expires}) - $snow);
		512	} else {
		513	delete $kv{_expires};
		514	}
		515
		516	my $cdom;
		517	my $cpath = (delete $kv{path}) \|\| "/";
		518
		519	if (exists $kv{domain}) {
		520	$cdom = delete $kv{domain};
		521
		522	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		523
		524	next if $cdom =~ /\.$/;
		525
		526	# this is not rfc-like and not netscape-like. go figure.
		527	my $ndots = $cdom =~ y/.//;
		528	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		529	} else {
		530	$cdom = $uhost;
		531	}
		532
		533	# store it
		534	$jar->{version} = 1;
		535	$jar->{$cdom}{$cpath}{$name} = \%kv;
		536
		537	redo if /\G\s*,/gc;
		538	}
		539	}
		540
		541	# continue to parse $_ for headers and place them into the arg
		542	sub parse_hdr() {
		543	my %hdr;
		544
		545	# things seen, not parsed:
		546	# p3pP="NON CUR OTPi OUR NOR UNI"
		547
		548	$hdr{lc $1} .= ",$2"
		549	while /\G
		550	([^:\000-\037]*):
		551	[\011\040]*
		552	((?: [^\012]+ \| \012[\011\040] )*)
		553	\012
		554	/gxc;
		555
		556	/\G$/
		557	or return;
		558
		559	# remove the "," prefix we added to all headers above
		560	substr $_, 0, 1, ""
		561	for values %hdr;
		562
		563	\%hdr
		564	}
		565
344	our $qr_nlnl = qr{(?<![^\012])\015?\012};	566	our $qr_nlnl = qr{(?<![^\012])\015?\012};
345		567
346	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	568	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
347	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	569	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
348		570
…		…
367	my @pseudo = (URL => $url);	589	my @pseudo = (URL => $url);
368	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};	590	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
369		591
370	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	592	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
371		593
372	return $cb->(undef, { Status => 599, Reason => "Too many redirections", @pseudo })	594	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
373	if $recurse < 0;	595	if $recurse < 0;
374		596
375	my $proxy = $arg{proxy} \|\| $PROXY;	597	my $proxy = $arg{proxy} \|\| $PROXY;
376	my $timeout = $arg{timeout} \|\| $TIMEOUT;	598	my $timeout = $arg{timeout} \|\| $TIMEOUT;
377		599
…		…
380		602
381	$uscheme = lc $uscheme;	603	$uscheme = lc $uscheme;
382		604
383	my $uport = $uscheme eq "http" ? 80	605	my $uport = $uscheme eq "http" ? 80
384	: $uscheme eq "https" ? 443	606	: $uscheme eq "https" ? 443
385	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", @pseudo });	607	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
386		608
387	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	609	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
388	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", @pseudo });	610	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
389		611
390	my $uhost = $1;	612	my $uhost = $1;
391	$uport = $2 if defined $2;	613	$uport = $2 if defined $2;
392		614
393	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"	615	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
…		…
398		620
399	$upath =~ s%^/?%/%;	621	$upath =~ s%^/?%/%;
400		622
401	# cookie processing	623	# cookie processing
402	if (my $jar = $arg{cookie_jar}) {	624	if (my $jar = $arg{cookie_jar}) {
403	%$jar = () if $jar->{version} != 1;	625	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
404		626
405	my @cookie;
406
407	while (my ($chost, $v) = each %$jar) {
408	if ($chost =~ /^\./) {
409	next unless $chost eq substr $uhost, -length $chost;
410	} elsif ($chost =~ /\./) {
411	next unless $chost eq $uhost;
412	} else {
413	next;
414	}
415
416	while (my ($cpath, $v) = each %$v) {
417	next unless $cpath eq substr $upath, 0, length $cpath;
418
419	while (my ($k, $v) = each %$v) {
420	next if $uscheme ne "https" && exists $v->{secure};
421	my $value = $v->{value};
422	$value =~ s/([\\"])/\\$1/g;
423	push @cookie, "$k=\"$value\"";
424	}
425	}
426	}
427
428	$hdr{cookie} = join "; ", @cookie	627	$hdr{cookie} = join "; ", @$cookies
429	if @cookie;	628	if @$cookies;
430	}	629	}
431		630
432	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	631	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
433		632
434	if ($proxy) {	633	if ($proxy) {
…		…
442	} else {	641	} else {
443	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	642	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
444	}	643	}
445		644
446	# leave out fragment and query string, just a heuristic	645	# leave out fragment and query string, just a heuristic
447	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	646	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
448	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	647	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
449		648
450	$hdr{"content-length"} = length $arg{body}	649	$hdr{"content-length"} = length $arg{body}
451	if length $arg{body} \|\| $method ne "GET";	650	if length $arg{body} \|\| $method ne "GET";
452		651
		652	$hdr{connection} = "close TE"; #1.1
		653	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
		654
453	my %state = (connect_guard => 1);	655	my %state = (connect_guard => 1);
454		656
455	_get_slot $uhost, sub {	657	_get_slot $uhost, sub {
456	$state{slot_guard} = shift;	658	$state{slot_guard} = shift;
457		659
458	return unless $state{connect_guard};	660	return unless $state{connect_guard};
459		661
460	$state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {	662	my $ae_error = 595; # connecting
		663
		664	my $connect_cb = sub {
461	$state{fh} = shift	665	$state{fh} = shift
462	or do {	666	or do {
463	my $err = "$!";	667	my $err = "$!";
464	%state = ();	668	%state = ();
465	return $cb->(undef, { Status => 599, Reason => $err, @pseudo });	669	return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err });
466	};	670	};
467
468	pop; # free memory, save a tree
469		671
470	return unless delete $state{connect_guard};	672	return unless delete $state{connect_guard};
471		673
472	# get handle	674	# get handle
473	$state{handle} = new AnyEvent::Handle	675	$state{handle} = new AnyEvent::Handle
…		…
476	tls_ctx => $arg{tls_ctx},	678	tls_ctx => $arg{tls_ctx},
477	# these need to be reconfigured on keepalive handles	679	# these need to be reconfigured on keepalive handles
478	timeout => $timeout,	680	timeout => $timeout,
479	on_error => sub {	681	on_error => sub {
480	%state = ();	682	%state = ();
481	$cb->(undef, { Status => 599, Reason => $_[2], @pseudo });	683	$cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] });
482	},	684	},
483	on_eof => sub {	685	on_eof => sub {
484	%state = ();	686	%state = ();
485	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", @pseudo });	687	$cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" });
486	},	688	},
487	;	689	;
488		690
489	# limit the number of persistent connections	691	# limit the number of persistent connections
490	# keepalive not yet supported	692	# keepalive not yet supported
…		…
492	# ++$KA_COUNT{$_[1]};	694	# ++$KA_COUNT{$_[1]};
493	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {	695	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
494	# --$KA_COUNT{$_[1]}	696	# --$KA_COUNT{$_[1]}
495	# };	697	# };
496	# $hdr{connection} = "keep-alive";	698	# $hdr{connection} = "keep-alive";
497	# } else {
498	delete $hdr{connection};
499	# }	699	# }
500		700
501	$state{handle}->starttls ("connect") if $rscheme eq "https";	701	$state{handle}->starttls ("connect") if $rscheme eq "https";
502		702
503	# handle actual, non-tunneled, request	703	# handle actual, non-tunneled, request
504	my $handle_actual_request = sub {	704	my $handle_actual_request = sub {
		705	$ae_error = 596; # request phase
		706
505	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	707	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
506		708
507	# send request	709	# send request
508	$state{handle}->push_write (	710	$state{handle}->push_write (
509	"$method $rpath HTTP/1.0\015\012"	711	"$method $rpath HTTP/1.1\015\012"
510	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	712	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
511	. "\015\012"	713	. "\015\012"
512	. (delete $arg{body})	714	. (delete $arg{body})
513	);	715	);
514		716
515	# return if error occured during push_write()	717	# return if error occured during push_write()
516	return unless %state;	718	return unless %state;
517		719
518	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use	720	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
519		721
520	# status line	722	# status line and headers
521	$state{handle}->push_read (line => $qr_nl, sub {	723	$state{read_response} = sub {
522	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
523	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", @pseudo }));
524
525	push @pseudo,
526	HTTPVersion => $1,
527	Status => $2,
528	Reason => $3,
529	;
530
531	# headers, could be optimized a bit
532	$state{handle}->unshift_read (line => $qr_nlnl, sub {
533	for ("$_[1]") {	724	for ("$_[1]") {
534	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	725	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
535		726
536	# things seen, not parsed:	727	/^HTTP\/0([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]) )? \012/gxci
537	# p3pP="NON CUR OTPi OUR NOR UNI"	728	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
538		729
539	$hdr{lc $1} .= ",$2"	730	# 100 Continue handling
540	while /\G	731	# should not happen as we don't send expect: 100-continue,
541	([^:\000-\037]*):	732	# but we handle it just in case.
542	[\011\040]*	733	# since we send the request body regardless, if we get an error
543	((?: [^\012]+ \| \012[\011\040] )*)	734	# we are out of-sync, which we currently do NOT handle correctly.
544	\012	735	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
545	/gxc;	736	if $2 eq 100;
546		737
		738	push @pseudo,
		739	HTTPVersion => $1,
		740	Status => $2,
		741	Reason => $3,
547	/\G$/	742	;
		743
		744	my $hdr = parse_hdr
548	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", @pseudo }));	745	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		746
		747	%hdr = (%$hdr, @pseudo);
		748	}
		749
		750	# redirect handling
		751	# microsoft and other shitheads don't give a shit for following standards,
		752	# try to support some common forms of broken Location headers.
		753	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		754	$hdr{location} =~ s/^\.\/+//;
		755
		756	my $url = "$rscheme://$uhost:$uport";
		757
		758	unless ($hdr{location} =~ s/^\///) {
		759	$url .= $upath;
		760	$url =~ s/\/[^\/]*$//;
549	}	761	}
550		762
551	# remove the "," prefix we added to all headers above	763	$hdr{location} = "$url/$hdr{location}";
552	substr $_, 0, 1, ""	764	}
553	for values %hdr;
554		765
555	# patch in all pseudo headers	766	my $redirect;
556	%hdr = (%hdr, @pseudo);
557		767
		768	if ($recurse) {
		769	my $status = $hdr{Status};
		770
		771	# industry standard is to redirect POST as GET for
		772	# 301, 302 and 303, in contrast to HTTP/1.0 and 1.1.
		773	# also, the UA should ask the user for 301 and 307 and POST,
		774	# industry standard seems to be to simply follow.
		775	# we go with the industry standard.
		776	if ($status == 301 or $status == 302 or $status == 303) {
		777	# HTTP/1.1 is unclear on how to mutate the method
		778	$method = "GET" unless $method eq "HEAD";
558	# redirect handling	779	$redirect = 1;
559	# microsoft and other shitheads don't give a shit for following standards,	780	} elsif ($status == 307) {
560	# try to support some common forms of broken Location headers.	781	$redirect = 1;
561	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {	782	}
562	$hdr{location} =~ s/^\.\/+//;	783	}
563		784
564	my $url = "$rscheme://$uhost:$uport";	785	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
		786	my $may_keep_alive = $_[3];
565		787
566	unless ($hdr{location} =~ s/^\///) {	788	$state{handle}->destroy if $state{handle};
		789	%state = ();
		790
		791	if (defined $_[1]) {
		792	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		793	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		794	}
		795
		796	# set-cookie processing
		797	if ($arg{cookie_jar}) {
		798	cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost, $hdr{date};
		799	}
		800
		801	if ($redirect && exists $hdr{location}) {
		802	# we ignore any errors, as it is very common to receive
		803	# Content-Length != 0 but no actual body
		804	# we also access %hdr, as $_[1] might be an erro
		805	http_request (
		806	$method => $hdr{location},
		807	%arg,
		808	recurse => $recurse - 1,
		809	Redirect => [$_[0], \%hdr],
		810	$cb);
		811	} else {
		812	$cb->($_[0], \%hdr);
		813	}
		814	};
		815
		816	$ae_error = 597; # body phase
		817
		818	my $len = $hdr{"content-length"};
		819
		820	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		821	$finish->(undef, 598 => "Request cancelled by on_header");
		822	} elsif (
		823	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		824	or $method eq "HEAD"
		825	or (defined $len && !$len)
		826	) {
		827	# no body
		828	$finish->("", undef, undef, 1);
		829	} else {
		830	# body handling, many different code paths
		831	# - no body expected
		832	# - want_body_handle
		833	# - te chunked
		834	# - 2x length known (with or without on_body)
		835	# - 2x length not known (with or without on_body)
		836	if (!$redirect && $arg{want_body_handle}) {
		837	$_[0]->on_eof (undef);
		838	$_[0]->on_error (undef);
		839	$_[0]->on_read (undef);
		840
		841	$finish->(delete $state{handle});
		842
		843	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		844	my $cl = 0;
		845	my $body = undef;
		846	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		847
		848	my $read_chunk; $read_chunk = sub {
		849	$_[1] =~ /^([0-9a-fA-F]+)/
		850	or $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		851
		852	my $len = hex $1;
		853
		854	if ($len) {
567	$url .= $upath;	855	$cl += $len;
568	$url =~ s/\/[^\/]*$//;	856
		857	$_[0]->push_read (chunk => $len, sub {
		858	$on_body->($_[1], \%hdr)
		859	or return $finish->(undef, 598 => "Request cancelled by on_body");
		860
		861	$_[0]->push_read (line => sub {
		862	length $_[1]
		863	and return $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		864	$_[0]->push_read (line => $read_chunk);
		865	});
		866	});
		867	} else {
		868	$hdr{"content-length"} \|\|= $cl;
		869
		870	$_[0]->push_read (line => $qr_nlnl, sub {
		871	if (length $_[1]) {
		872	for ("$_[1]") {
		873	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		874
		875	my $hdr = parse_hdr
		876	or return $finish->(undef, $ae_error => "Garbled response trailers");
		877
		878	%hdr = (%hdr, %$hdr);
		879	}
		880	}
		881
		882	$finish->($body, undef, undef, 1);
		883	});
		884	}
		885	};
		886
		887	$_[0]->push_read (line => $read_chunk);
		888
		889	} elsif ($arg{on_body}) {
		890	if ($len) {
		891	$_[0]->on_read (sub {
		892	$len -= length $_[0]{rbuf};
		893
		894	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		895	or return $finish->(undef, 598 => "Request cancelled by on_body");
		896
		897	$len > 0
		898	or $finish->("", undef, undef, 1);
		899	});
		900	} else {
		901	$_[0]->on_eof (sub {
		902	$finish->("");
		903	});
		904	$_[0]->on_read (sub {
		905	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		906	or $finish->(undef, 598 => "Request cancelled by on_body");
		907	});
569	}	908	}
570
571	$hdr{location} = "$url/$hdr{location}";
572	}	909	} else {
		910	$_[0]->on_eof (undef);
573		911
574	my $redirect;
575
576	if ($recurse) {	912	if ($len) {
577	my $status = $hdr{Status};	913	$_[0]->on_read (sub {
578		914	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
579	if (($status == 301 \|\| $status == 302) && $method ne "POST") {	915	if $len <= length $_[0]{rbuf};
580	# apparently, mozilla et al. just change POST to GET here
581	# more research is needed before we do the same
582	$redirect = 1;	916	});
583	} elsif ($status == 303) {	917	} else {
584	# even http/1.1 is unclear on how to mutate the method	918	$_[0]->on_error (sub {
585	$method = "GET" unless $method eq "HEAD";	919	($! == Errno::EPIPE \|\| !$!)
		920	? $finish->(delete $_[0]{rbuf})
		921	: $finish->(undef, $ae_error => $_[2]);
586	$redirect = 1;	922	});
587	} elsif ($status == 307 && $method =~ /^(?:GET\|HEAD)$/) {	923	$_[0]->on_read (sub { });
588	$redirect = 1;
589	}	924	}
590	}	925	}
591
592	my $finish = sub {
593	$state{handle}->destroy if $state{handle};
594	%state = ();
595
596	# set-cookie processing
597	if ($arg{cookie_jar}) {
598	for ($_[1]{"set-cookie"}) {
599	# parse NAME=VALUE
600	my @kv;
601
602	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
603	my $name = $1;
604	my $value = $3;
605
606	unless ($value) {
607	$value = $2;
608	$value =~ s/\\(.)/$1/gs;
609	}
610
611	push @kv, $name => $value;
612
613	last unless /\G\s*;/gc;
614	}
615
616	last unless @kv;
617
618	my $name = shift @kv;
619	my %kv = (value => shift @kv, @kv);
620
621	my $cdom;
622	my $cpath = (delete $kv{path}) \|\| "/";
623
624	if (exists $kv{domain}) {
625	$cdom = delete $kv{domain};
626
627	$cdom =~ s/^\.?/./; # make sure it starts with a "."
628
629	next if $cdom =~ /\.$/;
630
631	# this is not rfc-like and not netscape-like. go figure.
632	my $ndots = $cdom =~ y/.//;
633	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
634	} else {
635	$cdom = $uhost;
636	}
637
638	# store it
639	$arg{cookie_jar}{version} = 1;
640	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
641
642	redo if /\G\s*,/gc;
643	}
644	}
645
646	if ($redirect && exists $hdr{location}) {
647	# we ignore any errors, as it is very common to receive
648	# Content-Length != 0 but no actual body
649	# we also access %hdr, as $_[1] might be an erro
650	http_request (
651	$method => $hdr{location},
652	%arg,
653	recurse => $recurse - 1,
654	Redirect => \@_,
655	$cb);
656	} else {
657	$cb->($_[0], $_[1]);
658	}
659	};
660
661	my $len = $hdr{"content-length"};
662
663	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
664	$finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", @pseudo });
665	} elsif (
666	$hdr{Status} =~ /^(?:1..\|[23]04)$/
667	or $method eq "HEAD"
668	or (defined $len && !$len)
669	) {
670	# no body
671	$finish->("", \%hdr);
672	} else {
673	# body handling, four different code paths
674	# for want_body_handle, on_body (2x), normal (2x)
675	# we might read too much here, but it does not matter yet (no pers. connections)
676	if (!$redirect && $arg{want_body_handle}) {
677	$_[0]->on_eof (undef);
678	$_[0]->on_error (undef);
679	$_[0]->on_read (undef);
680
681	$finish->(delete $state{handle}, \%hdr);
682
683	} elsif ($arg{on_body}) {
684	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
685	if ($len) {
686	$_[0]->on_eof (undef);
687	$_[0]->on_read (sub {
688	$len -= length $_[0]{rbuf};
689
690	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
691	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
692
693	$len > 0
694	or $finish->("", \%hdr);
695	});
696	} else {
697	$_[0]->on_eof (sub {
698	$finish->("", \%hdr);
699	});
700	$_[0]->on_read (sub {
701	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
702	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
703	});
704	}
705	} else {
706	$_[0]->on_eof (undef);
707
708	if ($len) {
709	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
710	$_[0]->on_read (sub {
711	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
712	if $len <= length $_[0]{rbuf};
713	});
714	} else {
715	$_[0]->on_error (sub {
716	$! == Errno::EPIPE \|\| !$!
717	? $finish->(delete $_[0]{rbuf}, \%hdr)
718	: $finish->(undef, { Status => 599, Reason => $_[2], @pseudo });
719	});
720	$_[0]->on_read (sub { });
721	}
722	}
723	}
724	});	926	}
725	});	927	};
		928
		929	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
726	};	930	};
727		931
728	# now handle proxy-CONNECT method	932	# now handle proxy-CONNECT method
729	if ($proxy && $uscheme eq "https") {	933	if ($proxy && $uscheme eq "https") {
730	# oh dear, we have to wrap it into a connect request	934	# oh dear, we have to wrap it into a connect request
731		935
732	# maybe re-use $uauthority with patched port?	936	# maybe re-use $uauthority with patched port?
733	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");	937	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
734	$state{handle}->push_read (line => $qr_nlnl, sub {	938	$state{handle}->push_read (line => $qr_nlnl, sub {
735	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	939	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
736	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", @pseudo }));	940	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
737		941
738	if ($2 == 200) {	942	if ($2 == 200) {
739	$rpath = $upath;	943	$rpath = $upath;
740	&$handle_actual_request;	944	&$handle_actual_request;
741	} else {	945	} else {
742	%state = ();	946	%state = ();
743	$cb->(undef, { Status => $2, Reason => $3, @pseudo });	947	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
744	}	948	}
745	});	949	});
746	} else {	950	} else {
747	&$handle_actual_request;	951	&$handle_actual_request;
748	}	952	}
		953	};
749		954
750	}, $arg{on_prepare} \|\| sub { $timeout };	955	my $tcp_connect = $arg{tcp_connect}
		956	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		957
		958	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		959
751	};	960	};
752		961
753	defined wantarray && AnyEvent::Util::guard { %state = () }	962	defined wantarray && AnyEvent::Util::guard { %state = () }
754	}	963	}
755		964
…		…
790	string of the form C<http://host:port> (optionally C<https:...>), croaks	999	string of the form C<http://host:port> (optionally C<https:...>), croaks
791	otherwise.	1000	otherwise.
792		1001
793	To clear an already-set proxy, use C<undef>.	1002	To clear an already-set proxy, use C<undef>.
794		1003
		1004	=item AnyEvent::HTTP::cookie_jar_expire $jar[, $session_end]
		1005
		1006	Remove all cookies from the cookie jar that have been expired. If
		1007	C<$session_end> is given and true, then additionally remove all session
		1008	cookies.
		1009
		1010	You should call this function (with a true C<$session_end>) before you
		1011	save cookies to disk, and you should call this function after loading them
		1012	again. If you have a long-running program you can additonally call this
		1013	function from time to time.
		1014
		1015	A cookie jar is initially an empty hash-reference that is managed by this
		1016	module. It's format is subject to change, but currently it is like this:
		1017
		1018	The key C<version> has to contain C<1>, otherwise the hash gets
		1019	emptied. All other keys are hostnames or IP addresses pointing to
		1020	hash-references. The key for these inner hash references is the
		1021	server path for which this cookie is meant, and the values are again
		1022	hash-references. The keys of those hash-references is the cookie name, and
		1023	the value, you guessed it, is another hash-reference, this time with the
		1024	key-value pairs from the cookie, except for C<expires> and C<max-age>,
		1025	which have been replaced by a C<_expires> key that contains the cookie
		1026	expiry timestamp.
		1027
		1028	Here is an example of a cookie jar with a single cookie, so you have a
		1029	chance of understanding the above paragraph:
		1030
		1031	{
		1032	version => 1,
		1033	"10.0.0.1" => {
		1034	"/" => {
		1035	"mythweb_id" => {
		1036	_expires => 1293917923,
		1037	value => "ooRung9dThee3ooyXooM1Ohm",
		1038	},
		1039	},
		1040	},
		1041	}
		1042
		1043	=item $date = AnyEvent::HTTP::format_date $timestamp
		1044
		1045	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
		1046	Date (RFC 2616).
		1047
		1048	=item $timestamp = AnyEvent::HTTP::parse_date $date
		1049
		1050	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) or a
		1051	bunch of minor variations of those, and returns the corresponding POSIX
		1052	timestamp, or C<undef> if the date cannot be parsed.
		1053
795	=item $AnyEvent::HTTP::MAX_RECURSE	1054	=item $AnyEvent::HTTP::MAX_RECURSE
796		1055
797	The default value for the C<recurse> request parameter (default: C<10>).	1056	The default value for the C<recurse> request parameter (default: C<10>).
798		1057
799	=item $AnyEvent::HTTP::USERAGENT	1058	=item $AnyEvent::HTTP::USERAGENT
…		…
817	connections. This number of can be useful for load-leveling.	1076	connections. This number of can be useful for load-leveling.
818		1077
819	=back	1078	=back
820		1079
821	=cut	1080	=cut
		1081
		1082	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		1083	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		1084
		1085	sub format_date($) {
		1086	my ($time) = @_;
		1087
		1088	# RFC 822/1123 format
		1089	my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time;
		1090
		1091	sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT",
		1092	$weekday[$wday], $mday, $month[$mon], $year + 1900,
		1093	$H, $M, $S;
		1094	}
		1095
		1096	sub parse_date($) {
		1097	my ($date) = @_;
		1098
		1099	my ($d, $m, $y, $H, $M, $S);
		1100
		1101	if ($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$/) {
		1102	# RFC 822/1123, required by RFC 2616 (with " ")
		1103	# cookie dates (with "-")
		1104
		1105	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
		1106
		1107	} elsif ($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$/) {
		1108	# RFC 850
		1109	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
		1110
		1111	} elsif ($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])$/) {
		1112	# ISO C's asctime
		1113	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
		1114	}
		1115	# other formats fail in the loop below
		1116
		1117	for (0..11) {
		1118	if ($m eq $month[$_]) {
		1119	require Time::Local;
		1120	return Time::Local::timegm ($S, $M, $H, $d, $_, $y);
		1121	}
		1122	}
		1123
		1124	undef
		1125	}
822		1126
823	sub set_proxy($) {	1127	sub set_proxy($) {
824	if (length $_[0]) {	1128	if (length $_[0]) {
825	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix	1129	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
826	or Carp::croak "$_[0]: invalid proxy URL";	1130	or Carp::croak "$_[0]: invalid proxy URL";
…		…
833	# initialise proxy from environment	1137	# initialise proxy from environment
834	eval {	1138	eval {
835	set_proxy $ENV{http_proxy};	1139	set_proxy $ENV{http_proxy};
836	};	1140	};
837		1141
		1142	=head2 SOCKS PROXIES
		1143
		1144	Socks proxies are not directly supported by AnyEvent::HTTP. You can
		1145	compile your perl to support socks, or use an external program such as
		1146	F<socksify> (dante) or F<tsocks> to make your program use a socks proxy
		1147	transparently.
		1148
		1149	Alternatively, for AnyEvent::HTTP only, you can use your own
		1150	C<tcp_connect> function that does the proxy handshake - here is an example
		1151	that works with socks4a proxies:
		1152
		1153	use Errno;
		1154	use AnyEvent::Util;
		1155	use AnyEvent::Socket;
		1156	use AnyEvent::Handle;
		1157
		1158	# host, port and username of/for your socks4a proxy
		1159	my $socks_host = "10.0.0.23";
		1160	my $socks_port = 9050;
		1161	my $socks_user = "";
		1162
		1163	sub socks4a_connect {
		1164	my ($host, $port, $connect_cb, $prepare_cb) = @_;
		1165
		1166	my $hdl = new AnyEvent::Handle
		1167	connect => [$socks_host, $socks_port],
		1168	on_prepare => sub { $prepare_cb->($_[0]{fh}) },
		1169	on_error => sub { $connect_cb->() },
		1170	;
		1171
		1172	$hdl->push_write (pack "CCnNZZ", 4, 1, $port, 1, $socks_user, $host);
		1173
		1174	$hdl->push_read (chunk => 8, sub {
		1175	my ($hdl, $chunk) = @_;
		1176	my ($status, $port, $ipn) = unpack "xCna4", $chunk;
		1177
		1178	if ($status == 0x5a) {
		1179	$connect_cb->($hdl->{fh}, (format_address $ipn) . ":$port");
		1180	} else {
		1181	$! = Errno::ENXIO; $connect_cb->();
		1182	}
		1183	});
		1184
		1185	$hdl
		1186	}
		1187
		1188	Use C<socks4a_connect> instead of C<tcp_connect> when doing C<http_request>s,
		1189	possibly after switching off other proxy types:
		1190
		1191	AnyEvent::HTTP::set_proxy undef; # usually you do not want other proxies
		1192
		1193	http_get 'http://www.google.com', tcp_connect => \&socks4a_connect, sub {
		1194	my ($data, $headers) = @_;
		1195	...
		1196	};
		1197
838	=head1 SEE ALSO	1198	=head1 SEE ALSO
839		1199
840	L<AnyEvent>.	1200	L<AnyEvent>.
841		1201
842	=head1 AUTHOR	1202	=head1 AUTHOR

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.56 by root, Mon Sep 6 05:30:54 2010 UTC vs. Revision 1.80 by root, Sat Jan 1 21:51:22 2011 UTC

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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.56 by root, Mon Sep 6 05:30:54 2010 UTC vs.
Revision 1.80 by root, Sat Jan 1 21:51:22 2011 UTC