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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.45 by root, Fri Jul 17 16:56:36 2009 UTC vs.
Revision 1.71 by root, Fri Dec 31 20:50:58 2010 UTC

…		…
41	use strict;	41	use strict;
42	no warnings;	42	no warnings;
43		43
44	use Errno ();	44	use Errno ();
45		45
46	use AnyEvent 4.8 ();	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 = '1.4';	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" C<HTTPVersion>, C<Status> and C<Reason>	103	headers, the "pseudo-headers" (uppercase to avoid clashing with possible
		104	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the
105	contain the three parts of the HTTP Status-Line of the same name. The	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>.
		109
106	pseudo-header C<URL> contains the original URL (which can differ from the	110	The pseudo-header C<URL> contains the actual URL (which can differ from
107	requested URL when following redirects).	111	the requested URL when following redirects - for example, you might get
		112	an error that your URL scheme is not supported even though your URL is a
		113	valid http URL because it redirected to an ftp URL, in which case you can
		114	look at the URL pseudo header).
		115
		116	The pseudo-header C<Redirect> only exists when the request was a result
		117	of an internal redirect. In that case it is an array reference with
		118	the C<($data, $headers)> from the redirect response. Note that this
		119	response could in turn be the result of a redirect itself, and C<<
		120	$headers->{Redirect}[1]{Redirect} >> will then contain the original
		121	response, and so on.
108		122
109	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
110	joined together with a comma (C<,>), as per the HTTP spec.	124	joined together with a comma (C<,>), as per the HTTP spec.
111		125
112	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,
…		…
136	Whether to recurse requests or not, e.g. on redirects, authentication	150	Whether to recurse requests or not, e.g. on redirects, authentication
137	retries and so on, and how often to do so.	151	retries and so on, and how often to do so.
138		152
139	=item headers => hashref	153	=item headers => hashref
140		154
141	The request headers to use. Currently, C<http_request> may provide its	155	The request headers to use. Currently, C<http_request> may provide its own
142	own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers	156	C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers and
143	and will provide defaults for C<User-Agent:> and C<Referer:>.	157	will provide defaults at least for C<TE:>, C<Referer:> and C<User-Agent:>
		158	(this can be suppressed by using C<undef> for these headers in which case
		159	they won't be sent at all).
144		160
145	=item timeout => $seconds	161	=item timeout => $seconds
146		162
147	The time-out to use for various stages - each connect attempt will reset	163	The time-out to use for various stages - each connect attempt will reset
148	the timeout, as will read or write activity. Default timeout is 5 minutes.	164	the timeout, as will read or write activity, i.e. this is not an overall
		165	timeout.
		166
		167	Default timeout is 5 minutes.
149		168
150	=item proxy => [$host, $port[, $scheme]] or undef	169	=item proxy => [$host, $port[, $scheme]] or undef
151		170
152	Use the given http proxy for all requests. If not specified, then the	171	Use the given http proxy for all requests. If not specified, then the
153	default proxy (as specified by C<$ENV{http_proxy}>) is used.	172	default proxy (as specified by C<$ENV{http_proxy}>) is used.
154		173
155	C<$scheme> must be either missing or C<http> for HTTP, or C<https> for	174	C<$scheme> must be either missing, C<http> for HTTP or C<https> for
156	HTTPS.	175	HTTPS.
157		176
158	=item body => $string	177	=item body => $string
159		178
160	The request body, usually empty. Will be-sent as-is (future versions of	179	The request body, usually empty. Will be sent as-is (future versions of
161	this module might offer more options).	180	this module might offer more options).
162		181
163	=item cookie_jar => $hash_ref	182	=item cookie_jar => $hash_ref
164		183
165	Passing this parameter enables (simplified) cookie-processing, loosely	184	Passing this parameter enables (simplified) cookie-processing, loosely
166	based on the original netscape specification.	185	based on the original netscape specification.
167		186
168	The C<$hash_ref> must be an (initially empty) hash reference which will	187	The C<$hash_ref> must be an (initially empty) hash reference which will
169	get updated automatically. It is possible to save the cookie_jar to	188	get updated automatically. It is possible to save the cookie jar to
170	persistent storage with something like JSON or Storable, but this is not	189	persistent storage with something like JSON or Storable, but this is not
171	recommended, as expiry times are currently being ignored.	190	recommended, as session-only cookies might survive longer than expected.
172		191
173	Note that this cookie implementation is not of very high quality, nor	192	Note that this cookie implementation is not meant to be complete. If
174	meant to be complete. If you want complete cookie management you have to	193	you want complete cookie management you have to do that on your
175	do that on your own. C<cookie_jar> is meant as a quick fix to get some	194	own. C<cookie_jar> is meant as a quick fix to get some cookie-using sites
176	cookie-using sites working. Cookies are a privacy disaster, do not use	195	working. Cookies are a privacy disaster, do not use them unless required
177	them unless required to.	196	to.
		197
		198	When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:>
		199	headers will be set and handled by this module, otherwise they will be
		200	left untouched.
178		201
179	=item tls_ctx => $scheme \| $tls_ctx	202	=item tls_ctx => $scheme \| $tls_ctx
180		203
181	Specifies the AnyEvent::TLS context to be used for https connections. This	204	Specifies the AnyEvent::TLS context to be used for https connections. This
182	parameter follows the same rules as the C<tls_ctx> parameter to	205	parameter follows the same rules as the C<tls_ctx> parameter to
…		…
186	verification) TLS context.	209	verification) TLS context.
187		210
188	The default for this option is C<low>, which could be interpreted as "give	211	The default for this option is C<low>, which could be interpreted as "give
189	me the page, no matter what".	212	me the page, no matter what".
190		213
		214	=item on_prepare => $callback->($fh)
		215
		216	In rare cases you need to "tune" the socket before it is used to
		217	connect (for exmaple, to bind it on a given IP address). This parameter
		218	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>
		219	and behaves exactly the same way (e.g. it has to provide a
		220	timeout). See the description for the C<$prepare_cb> argument of
		221	C<AnyEvent::Socket::tcp_connect> for details.
		222
		223	=item tcp_connect => $callback->($host, $service, $connect_cb, $prepare_cb)
		224
		225	In even rarer cases you want total control over how AnyEvent::HTTP
		226	establishes connections. Normally it uses L<AnyEvent::Socket::tcp_connect>
		227	to do this, but you can provide your own C<tcp_connect> function -
		228	obviously, it has to follow the same calling conventions, except that it
		229	may always return a connection guard object.
		230
		231	There are probably lots of weird uses for this function, starting from
		232	tracing the hosts C<http_request> actually tries to connect, to (inexact
		233	but fast) host => IP address caching or even socks protocol support.
		234
191	=item on_header => $callback->($headers)	235	=item on_header => $callback->($headers)
192		236
193	When specified, this callback will be called with the header hash as soon	237	When specified, this callback will be called with the header hash as soon
194	as headers have been successfully received from the remote server (not on	238	as headers have been successfully received from the remote server (not on
195	locally-generated errors).	239	locally-generated errors).
…		…
200		244
201	This callback is useful, among other things, to quickly reject unwanted	245	This callback is useful, among other things, to quickly reject unwanted
202	content, which, if it is supposed to be rare, can be faster than first	246	content, which, if it is supposed to be rare, can be faster than first
203	doing a C<HEAD> request.	247	doing a C<HEAD> request.
204		248
		249	The downside is that cancelling the request makes it impossible to re-use
		250	the connection. Also, the C<on_header> callback will not receive any
		251	trailer (headers sent after the response body).
		252
205	Example: cancel the request unless the content-type is "text/html".	253	Example: cancel the request unless the content-type is "text/html".
206		254
207	on_header => sub {	255	on_header => sub {
208	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	256	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
209	},	257	},
…		…
215	string instead of the body data.	263	string instead of the body data.
216		264
217	It has to return either true (in which case AnyEvent::HTTP will continue),	265	It has to return either true (in which case AnyEvent::HTTP will continue),
218	or false, in which case AnyEvent::HTTP will cancel the download (and call	266	or false, in which case AnyEvent::HTTP will cancel the download (and call
219	the completion callback with an error code of C<598>).	267	the completion callback with an error code of C<598>).
		268
		269	The downside to cancelling the request is that it makes it impossible to
		270	re-use the connection.
220		271
221	This callback is useful when the data is too large to be held in memory	272	This callback is useful when the data is too large to be held in memory
222	(so the callback writes it to a file) or when only some information should	273	(so the callback writes it to a file) or when only some information should
223	be extracted, or when the body should be processed incrementally.	274	be extracted, or when the body should be processed incrementally.
224		275
…		…
250	If you think you need this, first have a look at C<on_body>, to see if	301	If you think you need this, first have a look at C<on_body>, to see if
251	that doesn't solve your problem in a better way.	302	that doesn't solve your problem in a better way.
252		303
253	=back	304	=back
254		305
255	Example: make a simple HTTP GET request for http://www.nethype.de/	306	Example: do a simple HTTP GET request for http://www.nethype.de/ and print
		307	the response body.
256		308
257	http_request GET => "http://www.nethype.de/", sub {	309	http_request GET => "http://www.nethype.de/", sub {
258	my ($body, $hdr) = @_;	310	my ($body, $hdr) = @_;
259	print "$body\n";	311	print "$body\n";
260	};	312	};
261		313
262	Example: make a HTTP HEAD request on https://www.google.com/, use a	314	Example: do a HTTP HEAD request on https://www.google.com/, use a
263	timeout of 30 seconds.	315	timeout of 30 seconds.
264		316
265	http_request	317	http_request
266	GET => "https://www.google.com",	318	GET => "https://www.google.com",
267	timeout => 30,	319	timeout => 30,
…		…
270	use Data::Dumper;	322	use Data::Dumper;
271	print Dumper $hdr;	323	print Dumper $hdr;
272	}	324	}
273	;	325	;
274		326
275	Example: make another simple HTTP GET request, but immediately try to	327	Example: do another simple HTTP GET request, but immediately try to
276	cancel it.	328	cancel it.
277		329
278	my $request = http_request GET => "http://www.nethype.de/", sub {	330	my $request = http_request GET => "http://www.nethype.de/", sub {
279	my ($body, $hdr) = @_;	331	my ($body, $hdr) = @_;
280	print "$body\n";	332	print "$body\n";
…		…
312	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	364	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
313		365
314	_slot_schedule $_[0];	366	_slot_schedule $_[0];
315	}	367	}
316		368
317	our $qr_nl = qr<\015?\012>;	369	sub cookie_jar_extract($$$$) {
318	our $qr_nlnl = qr<\015?\012\015?\012>;	370	my ($jar, $uscheme, $uhost, $upath) = @_;
		371
		372	%$jar = () if $jar->{version} != 1;
		373
		374	my @cookies;
		375
		376	while (my ($chost, $paths) = each %$jar) {
		377	next unless ref $paths;
		378
		379	if ($chost =~ /^\./) {
		380	next unless $chost eq substr $uhost, -length $chost;
		381	} elsif ($chost =~ /\./) {
		382	next unless $chost eq $uhost;
		383	} else {
		384	next;
		385	}
		386
		387	while (my ($cpath, $cookies) = each %$paths) {
		388	next unless $cpath eq substr $upath, 0, length $cpath;
		389
		390	while (my ($cookie, $kv) = each %$cookies) {
		391	next if $uscheme ne "https" && exists $kv->{secure};
		392
		393	if (exists $kv->{expires}) {
		394	if (AE::now > parse_date ($kv->{expires})) {
		395	delete $cookies->{$cookie};
		396	next;
		397	}
		398	}
		399
		400	my $value = $kv->{value};
		401
		402	if ($value =~ /[=;,[:space:]]/) {
		403	$value =~ s/([\\"])/\\$1/g;
		404	$value = "\"$value\"";
		405	}
		406
		407	push @cookies, "$cookie=$value";
		408	}
		409	}
		410	}
		411
		412	\@cookies
		413	}
		414
		415	# continue to parse $_ for headers and place them into the arg
		416	sub parse_hdr() {
		417	my %hdr;
		418
		419	# things seen, not parsed:
		420	# p3pP="NON CUR OTPi OUR NOR UNI"
		421
		422	$hdr{lc $1} .= ",$2"
		423	while /\G
		424	([^:\000-\037]*):
		425	[\011\040]*
		426	((?: [^\012]+ \| \012[\011\040] )*)
		427	\012
		428	/gxc;
		429
		430	/\G$/
		431	or return;
		432
		433	# remove the "," prefix we added to all headers above
		434	substr $_, 0, 1, ""
		435	for values %hdr;
		436
		437	\%hdr
		438	}
		439
		440	our $qr_nlnl = qr{(?<![^\012])\015?\012};
319		441
320	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	442	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
321	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	443	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
322		444
323	sub http_request($$@) {	445	sub http_request($$@) {
…		…
335	while (my ($k, $v) = each %$hdr) {	457	while (my ($k, $v) = each %$hdr) {
336	$hdr{lc $k} = $v;	458	$hdr{lc $k} = $v;
337	}	459	}
338	}	460	}
339		461
		462	# pseudo headers for all subsequent responses
		463	my @pseudo = (URL => $url);
		464	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
		465
340	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	466	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
341		467
342	return $cb->(undef, { Status => 599, Reason => "Too many redirections", URL => $url })	468	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
343	if $recurse < 0;	469	if $recurse < 0;
344		470
345	my $proxy = $arg{proxy} \|\| $PROXY;	471	my $proxy = $arg{proxy} \|\| $PROXY;
346	my $timeout = $arg{timeout} \|\| $TIMEOUT;	472	my $timeout = $arg{timeout} \|\| $TIMEOUT;
347		473
348	my ($uscheme, $uauthority, $upath, $query, $fragment) =	474	my ($uscheme, $uauthority, $upath, $query, $fragment) =
349	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:\?([^#]))?(?:#(.))?\|;	475	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:(\?[^#]))?(?:#(.))?\|;
350		476
351	$uscheme = lc $uscheme;	477	$uscheme = lc $uscheme;
352		478
353	my $uport = $uscheme eq "http" ? 80	479	my $uport = $uscheme eq "http" ? 80
354	: $uscheme eq "https" ? 443	480	: $uscheme eq "https" ? 443
355	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", URL => $url });	481	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
356		482
357	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	483	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
358	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", URL => $url });	484	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
359		485
360	my $uhost = $1;	486	my $uhost = $1;
361	$uport = $2 if defined $2;	487	$uport = $2 if defined $2;
362		488
363	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost";	489	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
		490	unless exists $hdr{host};
364		491
365	$uhost =~ s/^\[(.*)\]$/$1/;	492	$uhost =~ s/^\[(.*)\]$/$1/;
366	$upath .= "?$query" if length $query;	493	$upath .= $query if length $query;
367		494
368	$upath =~ s%^/?%/%;	495	$upath =~ s%^/?%/%;
369		496
370	# cookie processing	497	# cookie processing
371	if (my $jar = $arg{cookie_jar}) {	498	if (my $jar = $arg{cookie_jar}) {
372	%$jar = () if $jar->{version} != 1;	499	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
373		500
374	my @cookie;
375
376	while (my ($chost, $v) = each %$jar) {
377	if ($chost =~ /^\./) {
378	next unless $chost eq substr $uhost, -length $chost;
379	} elsif ($chost =~ /\./) {
380	next unless $chost eq $uhost;
381	} else {
382	next;
383	}
384
385	while (my ($cpath, $v) = each %$v) {
386	next unless $cpath eq substr $upath, 0, length $cpath;
387
388	while (my ($k, $v) = each %$v) {
389	next if $uscheme ne "https" && exists $v->{secure};
390	my $value = $v->{value};
391	$value =~ s/([\\"])/\\$1/g;
392	push @cookie, "$k=\"$value\"";
393	}
394	}
395	}
396
397	$hdr{cookie} = join "; ", @cookie	501	$hdr{cookie} = join "; ", @$cookies
398	if @cookie;	502	if @$cookies;
399	}	503	}
400		504
401	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	505	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
402		506
403	if ($proxy) {	507	if ($proxy) {
404	($rpath, $rhost, $rport, $rscheme) = ($url, @$proxy);	508	($rpath, $rhost, $rport, $rscheme) = ($url, @$proxy);
		509
		510	$rscheme = "http" unless defined $rscheme;
405		511
406	# don't support https requests over https-proxy transport,	512	# don't support https requests over https-proxy transport,
407	# can't be done with tls as spec'ed, unless you double-encrypt.	513	# can't be done with tls as spec'ed, unless you double-encrypt.
408	$rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";	514	$rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";
409	} else {	515	} else {
410	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	516	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
411	}	517	}
412		518
413	$hdr{"user-agent"} \|\|= $USERAGENT;	519	# leave out fragment and query string, just a heuristic
414	$hdr{referer} \|\|= "$uscheme://$uauthority$upath"; # leave out fragment and query string, just a heuristic	520	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
		521	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
415		522
416	$hdr{"content-length"} = length $arg{body};	523	$hdr{"content-length"} = length $arg{body}
		524	if length $arg{body} \|\| $method ne "GET";
		525
		526	$hdr{connection} = "close TE"; #1.1
		527	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
417		528
418	my %state = (connect_guard => 1);	529	my %state = (connect_guard => 1);
419		530
420	_get_slot $uhost, sub {	531	_get_slot $uhost, sub {
421	$state{slot_guard} = shift;	532	$state{slot_guard} = shift;
422		533
423	return unless $state{connect_guard};	534	return unless $state{connect_guard};
424		535
425	$state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {	536	my $connect_cb = sub {
426	$state{fh} = shift	537	$state{fh} = shift
427	or do {	538	or do {
428	my $err = "$!";	539	my $err = "$!";
429	%state = ();	540	%state = ();
430	return $cb->(undef, { Status => 599, Reason => $err, URL => $url });	541	return $cb->(undef, { @pseudo, Status => 599, Reason => $err });
431	};	542	};
432		543
433	pop; # free memory, save a tree	544	pop; # free memory, save a tree
434		545
435	return unless delete $state{connect_guard};	546	return unless delete $state{connect_guard};
436		547
437	# get handle	548	# get handle
438	$state{handle} = new AnyEvent::Handle	549	$state{handle} = new AnyEvent::Handle
439	fh => $state{fh},	550	fh => $state{fh},
		551	peername => $rhost,
		552	tls_ctx => $arg{tls_ctx},
		553	# these need to be reconfigured on keepalive handles
440	timeout => $timeout,	554	timeout => $timeout,
441	peername => $rhost,	555	on_error => sub {
442	tls_ctx => $arg{tls_ctx};	556	%state = ();
		557	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });
		558	},
		559	on_eof => sub {
		560	%state = ();
		561	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });
		562	},
		563	;
443		564
444	# limit the number of persistent connections	565	# limit the number of persistent connections
445	# keepalive not yet supported	566	# keepalive not yet supported
446	if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	567	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
447	++$KA_COUNT{$_[1]};	568	# ++$KA_COUNT{$_[1]};
448	$state{handle}{ka_count_guard} = AnyEvent::Util::guard {	569	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
449	--$KA_COUNT{$_[1]}	570	# --$KA_COUNT{$_[1]}
450	};	571	# };
451	$hdr{connection} = "keep-alive";	572	# $hdr{connection} = "keep-alive";
452	} else {
453	delete $hdr{connection};
454	}	573	# }
455
456	# (re-)configure handle
457	$state{handle}->on_error (sub {
458	%state = ();
459	$cb->(undef, { Status => 599, Reason => $_[2], URL => $url });
460	});
461	$state{handle}->on_eof (sub {
462	%state = ();
463	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", URL => $url });
464	});
465		574
466	$state{handle}->starttls ("connect") if $rscheme eq "https";	575	$state{handle}->starttls ("connect") if $rscheme eq "https";
467		576
468	# handle actual, non-tunneled, request	577	# handle actual, non-tunneled, request
469	my $handle_actual_request = sub {	578	my $handle_actual_request = sub {
470	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	579	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
471		580
472	# send request	581	# send request
473	$state{handle}->push_write (	582	$state{handle}->push_write (
474	"$method $rpath HTTP/1.0\015\012"	583	"$method $rpath HTTP/1.1\015\012"
475	. (join "", map "\u$_: $hdr{$_}\015\012", keys %hdr)	584	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
476	. "\015\012"	585	. "\015\012"
477	. (delete $arg{body})	586	. (delete $arg{body})
478	);	587	);
479		588
		589	# return if error occured during push_write()
		590	return unless %state;
		591
480	%hdr = (); # reduce memory usage, save a kitten	592	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
481		593
482	# status line	594	# status line and headers
483	$state{handle}->push_read (line => $qr_nl, sub {	595	$state{read_response} = sub {
484	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
485	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", URL => $url }));
486
487	my %hdr = ( # response headers
488	HTTPVersion => ",$1",
489	Status => ",$2",
490	Reason => ",$3",
491	URL => ",$url"
492	);
493
494	# headers, could be optimized a bit
495	$state{handle}->unshift_read (line => $qr_nlnl, sub {
496	for ("$_[1]\012") {	596	for ("$_[1]") {
497	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	597	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
498		598
499	# things seen, not parsed:	599	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc
500	# p3pP="NON CUR OTPi OUR NOR UNI"	600	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
501		601
502	$hdr{lc $1} .= ",$2"	602	# 100 Continue handling
503	while /\G	603	# should not happen as we don't send expect: 100-continue,
504	([^:\000-\037]*):	604	# but we handle it just in case.
505	[\011\040]*	605	# since we send the request body regardless, if we get an error
506	((?: [^\012]+ \| \012[\011\040] )*)	606	# we are out of-sync, which we currently do NOT handle correctly.
507	\012	607	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
508	/gxc;	608	if $2 eq 100;
509		609
		610	push @pseudo,
		611	HTTPVersion => $1,
		612	Status => $2,
		613	Reason => $3,
510	/\G$/	614	;
		615
		616	my $hdr = parse_hdr
511	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", URL => $url }));	617	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		618
		619	%hdr = (%$hdr, @pseudo);
		620	}
		621
		622	# redirect handling
		623	# microsoft and other shitheads don't give a shit for following standards,
		624	# try to support some common forms of broken Location headers.
		625	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		626	$hdr{location} =~ s/^\.\/+//;
		627
		628	my $url = "$rscheme://$uhost:$uport";
		629
		630	unless ($hdr{location} =~ s/^\///) {
		631	$url .= $upath;
		632	$url =~ s/\/[^\/]*$//;
512	}	633	}
513		634
514	substr $_, 0, 1, ""
515	for values %hdr;
516
517	# redirect handling
518	# microsoft and other shitheads don't give a shit for following standards,
519	# try to support some common forms of broken Location headers.
520	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
521	$hdr{location} =~ s/^\.\/+//;
522
523	my $url = "$rscheme://$uhost:$uport";
524
525	unless ($hdr{location} =~ s/^\///) {
526	$url .= $upath;
527	$url =~ s/\/[^\/]*$//;
528	}
529
530	$hdr{location} = "$url/$hdr{location}";	635	$hdr{location} = "$url/$hdr{location}";
		636	}
		637
		638	my $redirect;
		639
		640	if ($recurse) {
		641	my $status = $hdr{Status};
		642
		643	# industry standard is to redirect POST as GET for
		644	# 301, 302 and 303, in contrast to http/1.0 and 1.1.
		645	# also, the UA should ask the user for 301 and 307 and POST,
		646	# industry standard seems to be to simply follow.
		647	# we go with the industry standard.
		648	if ($status == 301 or $status == 302 or $status == 303) {
		649	# HTTP/1.1 is unclear on how to mutate the method
		650	$method = "GET" unless $method eq "HEAD";
		651	$redirect = 1;
		652	} elsif ($status == 307) {
		653	$redirect = 1;
531	}	654	}
		655	}
532		656
		657	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
533	my $redirect;	658	my $keepalive = pop;
534		659
		660	$state{handle}->destroy if $state{handle};
		661	%state = ();
		662
		663	if (defined $_[1]) {
		664	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		665	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		666	}
		667
		668	# set-cookie processing
535	if ($recurse) {	669	if ($arg{cookie_jar}) {
536	if ($hdr{Status} =~ /^30[12]$/ && $method ne "POST") {	670	for ($hdr{"set-cookie"}) {
537	# apparently, mozilla et al. just change POST to GET here	671	# parse NAME=VALUE
538	# more research is needed before we do the same	672	my @kv;
		673
		674	while (
		675	m{
		676	\G\s*
		677	(?:
		678	expires \s=\s ([A-Z][a-z][a-z],\ [^,;]+)
		679	\| ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )
		680	)
		681	}gcxsi
		682	) {
		683	my $name = $2;
		684	my $value = $4;
		685
		686	unless (defined $name) {
		687	# expires
		688	$name = "expires";
		689	$value = $1;
		690	} elsif (!defined $value) {
		691	# quoted
		692	$value = $3;
		693	$value =~ s/\\(.)/$1/gs;
		694	}
		695
		696	push @kv, lc $name, $value;
		697
		698	last unless /\G\s*;/gc;
		699	}
		700
		701	last unless @kv;
		702
		703	my $name = shift @kv;
		704	my %kv = (value => shift @kv, @kv);
		705
		706	$kv{expires} \|\|= format_date (AE::now + $kv{"max-age"})
		707	if exists $kv{"max-age"};
		708
		709	my $cdom;
		710	my $cpath = (delete $kv{path}) \|\| "/";
		711
		712	if (exists $kv{domain}) {
		713	$cdom = delete $kv{domain};
		714
		715	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		716
		717	next if $cdom =~ /\.$/;
		718
		719	# this is not rfc-like and not netscape-like. go figure.
		720	my $ndots = $cdom =~ y/.//;
		721	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		722	} else {
		723	$cdom = $uhost;
		724	}
		725
539	$redirect = 1;	726	# store it
540	} elsif ($hdr{Status} == 303) {	727	$arg{cookie_jar}{version} = 1;
541	# even http/1.1 is unclear on how to mutate the method	728	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
542	$method = "GET" unless $method eq "HEAD";	729
543	$redirect = 1;	730	redo if /\G\s*,/gc;
544	} elsif ($hdr{Status} == 307 && $method =~ /^(?:GET\|HEAD)$/) {
545	$redirect = 1;
546	}	731	}
547	}	732	}
548		733
549	my $finish = sub {	734	if ($redirect && exists $hdr{location}) {
550	$state{handle}->destroy if $state{handle};
551	%state = ();
552
553	# set-cookie processing
554	if ($arg{cookie_jar}) {
555	for ($_[1]{"set-cookie"}) {
556	# parse NAME=VALUE
557	my @kv;
558
559	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
560	my $name = $1;
561	my $value = $3;
562
563	unless ($value) {
564	$value = $2;
565	$value =~ s/\\(.)/$1/gs;
566	}
567
568	push @kv, $name => $value;
569
570	last unless /\G\s*;/gc;
571	}
572
573	last unless @kv;
574
575	my $name = shift @kv;
576	my %kv = (value => shift @kv, @kv);
577
578	my $cdom;
579	my $cpath = (delete $kv{path}) \|\| "/";
580
581	if (exists $kv{domain}) {
582	$cdom = delete $kv{domain};
583
584	$cdom =~ s/^\.?/./; # make sure it starts with a "."
585
586	next if $cdom =~ /\.$/;
587
588	# this is not rfc-like and not netscape-like. go figure.
589	my $ndots = $cdom =~ y/.//;
590	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
591	} else {
592	$cdom = $uhost;
593	}
594
595	# store it
596	$arg{cookie_jar}{version} = 1;
597	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
598
599	redo if /\G\s*,/gc;
600	}
601	}
602
603	if ($redirect) {
604	# we ignore any errors, as it is very common to receive	735	# we ignore any errors, as it is very common to receive
605	# Content-Length != 0 but no actual body	736	# Content-Length != 0 but no actual body
606	# we also access %hdr, as $_[1] might be an erro	737	# we also access %hdr, as $_[1] might be an erro
607	http_request ($method => $hdr{location}, %arg, recurse => $recurse - 1, $cb);	738	http_request (
608	} else {	739	$method => $hdr{location},
609	$cb->($_[0], $_[1]);
610	}	740	%arg,
		741	recurse => $recurse - 1,
		742	Redirect => [$_[0], \%hdr],
611	};	743	$cb);
612
613	my $len = $hdr{"content-length"};
614
615	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
616	$finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", URL => $url });
617	} elsif (
618	$hdr{Status} =~ /^(?:1..\|[23]04)$/
619	or $method eq "HEAD"
620	or (defined $len && !$len)
621	) {
622	# no body
623	$finish->("", \%hdr);
624	} else {	744	} else {
		745	$cb->($_[0], \%hdr);
		746	}
		747	};
		748
		749	my $len = $hdr{"content-length"};
		750
		751	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		752	$finish->(undef, 598 => "Request cancelled by on_header");
		753	} elsif (
		754	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		755	or $method eq "HEAD"
		756	or (defined $len && !$len)
		757	) {
		758	# no body
		759	$finish->("", undef, undef, 1);
		760	} else {
625	# body handling, four different code paths	761	# body handling, many different code paths
626	# for want_body_handle, on_body (2x), normal (2x)	762	# - no body expected
627	# we might read too much here, but it does not matter yet (no pers. connections)	763	# - want_body_handle
		764	# - te chunked
		765	# - 2x length known (with or without on_body)
		766	# - 2x length not known (with or without on_body)
628	if (!$redirect && $arg{want_body_handle}) {	767	if (!$redirect && $arg{want_body_handle}) {
629	$_[0]->on_eof (undef);	768	$_[0]->on_eof (undef);
630	$_[0]->on_error (undef);	769	$_[0]->on_error (undef);
631	$_[0]->on_read (undef);	770	$_[0]->on_read (undef);
632		771
633	$finish->(delete $state{handle}, \%hdr);	772	$finish->(delete $state{handle});
634		773
635	} elsif ($arg{on_body}) {	774	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		775	my $cl = 0;
		776	my $body = undef;
		777	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		778
636	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });	779	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		780
		781	my $read_chunk; $read_chunk = sub {
		782	$_[1] =~ /^([0-9a-fA-F]+)/
		783	or $finish->(undef, 599 => "Garbled chunked transfer encoding");
		784
		785	my $len = hex $1;
		786
637	if ($len) {	787	if ($len) {
638	$_[0]->on_eof (undef);	788	$cl += $len;
		789
		790	$_[0]->push_read (chunk => $len, sub {
		791	$on_body->($_[1], \%hdr)
		792	or return $finish->(undef, 598 => "Request cancelled by on_body");
		793
639	$_[0]->on_read (sub {	794	$_[0]->push_read (line => sub {
640	$len -= length $_[0]{rbuf};	795	length $_[1]
641		796	and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
642	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	797	$_[0]->push_read (line => $read_chunk);
643	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
644
645	$len > 0	798	});
646	or $finish->("", \%hdr);
647	});	799	});
648	} else {	800	} else {
649	$_[0]->on_eof (sub {	801	$hdr{"content-length"} \|\|= $cl;
650	$finish->("", \%hdr);	802
		803	$_[0]->push_read (line => $qr_nlnl, sub {
		804	if (length $_[1]) {
		805	for ("$_[1]") {
		806	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		807
		808	my $hdr = parse_hdr
		809	or return $finish->(undef, 599 => "Garbled response trailers");
		810
		811	%hdr = (%hdr, %$hdr);
		812	}
651	});	813	}
652	$_[0]->on_read (sub {	814
653	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	815	$finish->($body, undef, undef, 1);
654	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
655	});	816	});
656	}	817	}
		818	};
		819
		820	$_[0]->push_read (line => $read_chunk);
		821
		822	} elsif ($arg{on_body}) {
		823	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		824
		825	if ($len) {
		826	$_[0]->on_read (sub {
		827	$len -= length $_[0]{rbuf};
		828
		829	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		830	or return $finish->(undef, 598 => "Request cancelled by on_body");
		831
		832	$len > 0
		833	or $finish->("", undef, undef, 1);
		834	});
657	} else {	835	} else {
658	$_[0]->on_eof (undef);	836	$_[0]->on_eof (sub {
659		837	$finish->("");
660	if ($len) {	838	});
661	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
662	$_[0]->on_read (sub {	839	$_[0]->on_read (sub {
		840	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		841	or $finish->(undef, 598 => "Request cancelled by on_body");
		842	});
		843	}
		844	} else {
		845	$_[0]->on_eof (undef);
		846
		847	if ($len) {
		848	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		849	$_[0]->on_read (sub {
663	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)	850	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
664	if $len <= length $_[0]{rbuf};	851	if $len <= length $_[0]{rbuf};
665	});	852	});
666	} else {	853	} else {
667	$_[0]->on_error (sub {	854	$_[0]->on_error (sub {
668	$! == Errno::EPIPE \|\| !$!	855	($! == Errno::EPIPE \|\| !$!)
669	? $finish->(delete $_[0]{rbuf}, \%hdr)	856	? $finish->(delete $_[0]{rbuf})
670	: $finish->(undef, { Status => 599, Reason => $_[2], URL => $url });	857	: $finish->(undef, 599 => $_[2]);
671	});	858	});
672	$_[0]->on_read (sub { });	859	$_[0]->on_read (sub { });
673	}
674	}	860	}
675	}	861	}
676	});	862	}
677	});	863	};
		864
		865	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
678	};	866	};
679		867
680	# now handle proxy-CONNECT method	868	# now handle proxy-CONNECT method
681	if ($proxy && $uscheme eq "https") {	869	if ($proxy && $uscheme eq "https") {
682	# oh dear, we have to wrap it into a connect request	870	# oh dear, we have to wrap it into a connect request
683		871
684	# maybe re-use $uauthority with patched port?	872	# maybe re-use $uauthority with patched port?
685	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");	873	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
686	$state{handle}->push_read (line => $qr_nlnl, sub {	874	$state{handle}->push_read (line => $qr_nlnl, sub {
687	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	875	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
688	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", URL => $url }));	876	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
689		877
690	if ($2 == 200) {	878	if ($2 == 200) {
691	$rpath = $upath;	879	$rpath = $upath;
692	&$handle_actual_request;	880	&$handle_actual_request;
693	} else {	881	} else {
694	%state = ();	882	%state = ();
695	$cb->(undef, { Status => $2, Reason => $3, URL => $url });	883	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
696	}	884	}
697	});	885	});
698	} else {	886	} else {
699	&$handle_actual_request;	887	&$handle_actual_request;
700	}	888	}
701
702	}, sub {
703	$timeout
704	};	889	};
		890
		891	my $tcp_connect = $arg{tcp_connect}
		892	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		893
		894	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		895
705	};	896	};
706		897
707	defined wantarray && AnyEvent::Util::guard { %state = () }	898	defined wantarray && AnyEvent::Util::guard { %state = () }
708	}	899	}
709		900
…		…
723	&http_request	914	&http_request
724	}	915	}
725		916
726	=back	917	=back
727		918
		919	=head2 DNS CACHING
		920
		921	AnyEvent::HTTP uses the AnyEvent::Socket::tcp_connect function for
		922	the actual connection, which in turn uses AnyEvent::DNS to resolve
		923	hostnames. The latter is a simple stub resolver and does no caching
		924	on its own. If you want DNS caching, you currently have to provide
		925	your own default resolver (by storing a suitable resolver object in
		926	C<$AnyEvent::DNS::RESOLVER>).
		927
728	=head2 GLOBAL FUNCTIONS AND VARIABLES	928	=head2 GLOBAL FUNCTIONS AND VARIABLES
729		929
730	=over 4	930	=over 4
731		931
732	=item AnyEvent::HTTP::set_proxy "proxy-url"	932	=item AnyEvent::HTTP::set_proxy "proxy-url"
733		933
734	Sets the default proxy server to use. The proxy-url must begin with a	934	Sets the default proxy server to use. The proxy-url must begin with a
735	string of the form C<http://host:port> (optionally C<https:...>).	935	string of the form C<http://host:port> (optionally C<https:...>), croaks
		936	otherwise.
		937
		938	To clear an already-set proxy, use C<undef>.
		939
		940	=item $date = AnyEvent::HTTP::format_date $timestamp
		941
		942	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
		943	Date (RFC 2616).
		944
		945	=item $timestamp = AnyEvent::HTTP::parse_date $date
		946
		947	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) and
		948	returns the corresponding POSIX timestamp, or C<undef> if the date cannot
		949	be parsed.
736		950
737	=item $AnyEvent::HTTP::MAX_RECURSE	951	=item $AnyEvent::HTTP::MAX_RECURSE
738		952
739	The default value for the C<recurse> request parameter (default: C<10>).	953	The default value for the C<recurse> request parameter (default: C<10>).
740		954
…		…
743	The default value for the C<User-Agent> header (the default is	957	The default value for the C<User-Agent> header (the default is
744	C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>).	958	C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>).
745		959
746	=item $AnyEvent::HTTP::MAX_PER_HOST	960	=item $AnyEvent::HTTP::MAX_PER_HOST
747		961
748	The maximum number of concurrent conenctions to the same host (identified	962	The maximum number of concurrent connections to the same host (identified
749	by the hostname). If the limit is exceeded, then the additional requests	963	by the hostname). If the limit is exceeded, then the additional requests
750	are queued until previous connections are closed.	964	are queued until previous connections are closed.
751		965
752	The default value for this is C<4>, and it is highly advisable to not	966	The default value for this is C<4>, and it is highly advisable to not
753	increase it.	967	increase it.
…		…
760		974
761	=back	975	=back
762		976
763	=cut	977	=cut
764		978
		979	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		980	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		981
		982	sub format_date($) {
		983	my ($time) = @_;
		984
		985	# RFC 822/1123 format
		986	my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time;
		987
		988	sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT",
		989	$weekday[$wday], $mday, $month[$mon], $year + 1900,
		990	$H, $M, $S;
		991	}
		992
		993	sub parse_date($) {
		994	my ($date) = @_;
		995
		996	my ($d, $m, $y, $H, $M, $S);
		997
		998	if ($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$/) {
		999	# RFC 822/1123, required by RFC 2616 (with " ")
		1000	# cookie dates (with "-")
		1001
		1002	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
		1003
		1004	} elsif ($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$/) {
		1005	# RFC 850
		1006	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
		1007
		1008	} elsif ($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])$/) {
		1009	# ISO C's asctime
		1010	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
		1011	}
		1012	# other formats fail in the loop below
		1013
		1014	for (0..11) {
		1015	if ($m eq $month[$_]) {
		1016	require Time::Local;
		1017	return Time::Local::timegm ($S, $M, $H, $d, $_, $y);
		1018	}
		1019	}
		1020
		1021	undef
		1022	}
		1023
765	sub set_proxy($) {	1024	sub set_proxy($) {
		1025	if (length $_[0]) {
766	$PROXY = [$2, $3 \|\| 3128, $1] if $_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix;	1026	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
		1027	or Carp::croak "$_[0]: invalid proxy URL";
		1028	$PROXY = [$2, $3 \|\| 3128, $1]
		1029	} else {
		1030	undef $PROXY;
		1031	}
767	}	1032	}
768		1033
769	# initialise proxy from environment	1034	# initialise proxy from environment
		1035	eval {
770	set_proxy $ENV{http_proxy};	1036	set_proxy $ENV{http_proxy};
		1037	};
		1038
		1039	=head2 SOCKS PROXIES
		1040
		1041	Socks proxies are not directly supported by AnyEvent::HTTP. You can
		1042	compile your perl to support socks, or use an external program such as
		1043	F<socksify> (dante) or F<tsocks> to make your program use a socks proxy
		1044	transparently.
		1045
		1046	Alternatively, for AnyEvent::HTTP only, you can use your own
		1047	C<tcp_connect> function that does the proxy handshake - here is an example
		1048	that works with socks4a proxies:
		1049
		1050	use Errno;
		1051	use AnyEvent::Util;
		1052	use AnyEvent::Socket;
		1053	use AnyEvent::Handle;
		1054
		1055	# host, port and username of/for your socks4a proxy
		1056	my $socks_host = "10.0.0.23";
		1057	my $socks_port = 9050;
		1058	my $socks_user = "";
		1059
		1060	sub socks4a_connect {
		1061	my ($host, $port, $connect_cb, $prepare_cb) = @_;
		1062
		1063	my $hdl = new AnyEvent::Handle
		1064	connect => [$socks_host, $socks_port],
		1065	on_prepare => sub { $prepare_cb->($_[0]{fh}) },
		1066	on_error => sub { $connect_cb->() },
		1067	;
		1068
		1069	$hdl->push_write (pack "CCnNZZ", 4, 1, $port, 1, $socks_user, $host);
		1070
		1071	$hdl->push_read (chunk => 8, sub {
		1072	my ($hdl, $chunk) = @_;
		1073	my ($status, $port, $ipn) = unpack "xCna4", $chunk;
		1074
		1075	if ($status == 0x5a) {
		1076	$connect_cb->($hdl->{fh}, (format_address $ipn) . ":$port");
		1077	} else {
		1078	$! = Errno::ENXIO; $connect_cb->();
		1079	}
		1080	});
		1081
		1082	$hdl
		1083	}
		1084
		1085	Use C<socks4a_connect> instead of C<tcp_connect> when doing C<http_request>s,
		1086	possibly after switching off other proxy types:
		1087
		1088	AnyEvent::HTTP::set_proxy undef; # usually you do not want other proxies
		1089
		1090	http_get 'http://www.google.com', tcp_connect => \&socks4a_connect, sub {
		1091	my ($data, $headers) = @_;
		1092	...
		1093	};
771		1094
772	=head1 SEE ALSO	1095	=head1 SEE ALSO
773		1096
774	L<AnyEvent>.	1097	L<AnyEvent>.
775		1098

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.45 by root, Fri Jul 17 16:56:36 2009 UTC vs. Revision 1.71 by root, Fri Dec 31 20:50:58 2010 UTC

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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.45 by root, Fri Jul 17 16:56:36 2009 UTC vs.
Revision 1.71 by root, Fri Dec 31 20:50:58 2010 UTC