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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.12 by root, Thu Jun 5 16:33:02 2008 UTC vs.
Revision 1.65 by root, Fri Dec 31 03:47:32 2010 UTC

…		…
3	AnyEvent::HTTP - simple but non-blocking HTTP/HTTPS client	3	AnyEvent::HTTP - simple but non-blocking HTTP/HTTPS client
4		4
5	=head1 SYNOPSIS	5	=head1 SYNOPSIS
6		6
7	use AnyEvent::HTTP;	7	use AnyEvent::HTTP;
		8
		9	http_get "http://www.nethype.de/", sub { print $_[1] };
		10
		11	# ... do something else here
8		12
9	=head1 DESCRIPTION	13	=head1 DESCRIPTION
10		14
11	This module is an L<AnyEvent> user, you need to make sure that you use and	15	This module is an L<AnyEvent> user, you need to make sure that you use and
12	run a supported event loop.	16	run a supported event loop.
…		…
35	package AnyEvent::HTTP;	39	package AnyEvent::HTTP;
36		40
37	use strict;	41	use strict;
38	no warnings;	42	no warnings;
39		43
40	use Carp;	44	use Errno ();
41		45
42	use AnyEvent ();	46	use AnyEvent 5.0 ();
43	use AnyEvent::Util ();	47	use AnyEvent::Util ();
44	use AnyEvent::Socket ();
45	use AnyEvent::Handle ();	48	use AnyEvent::Handle ();
46		49
47	use base Exporter::;	50	use base Exporter::;
48		51
49	our $VERSION = '1.0';	52	our $VERSION = '1.5';
50		53
51	our @EXPORT = qw(http_get http_request);	54	our @EXPORT = qw(http_get http_post http_head http_request);
52		55
53	our $USERAGENT = "Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";	56	our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";
54	our $MAX_RECURSE = 10;	57	our $MAX_RECURSE = 10;
55	our $MAX_PERSISTENT = 8;	58	our $MAX_PERSISTENT = 8;
56	our $PERSISTENT_TIMEOUT = 2;	59	our $PERSISTENT_TIMEOUT = 2;
57	our $TIMEOUT = 300;	60	our $TIMEOUT = 300;
58		61
59	# changing these is evil	62	# changing these is evil
60	our $MAX_PERSISTENT_PER_HOST = 2;	63	our $MAX_PERSISTENT_PER_HOST = 0;
61	our $MAX_PER_HOST = 4;	64	our $MAX_PER_HOST = 4;
62		65
63	our $PROXY;	66	our $PROXY;
		67	our $ACTIVE = 0;
64		68
65	my %KA_COUNT; # number of open keep-alive connections per host	69	my %KA_COUNT; # number of open keep-alive connections per host
66	my %CO_SLOT; # number of open connections, and wait queue, per host	70	my %CO_SLOT; # number of open connections, and wait queue, per host
67		71
68	=item http_get $url, key => value..., $cb->($data, $headers)	72	=item http_get $url, key => value..., $cb->($data, $headers)
69		73
70	Executes an HTTP-GET request. See the http_request function for details on	74	Executes an HTTP-GET request. See the http_request function for details on
71	additional parameters.	75	additional parameters and the return value.
72		76
73	=item http_head $url, key => value..., $cb->($data, $headers)	77	=item http_head $url, key => value..., $cb->($data, $headers)
74		78
75	Executes an HTTP-HEAD request. See the http_request function for details on	79	Executes an HTTP-HEAD request. See the http_request function for details
76	additional parameters.	80	on additional parameters and the return value.
77		81
78	=item http_post $url, $body, key => value..., $cb->($data, $headers)	82	=item http_post $url, $body, key => value..., $cb->($data, $headers)
79		83
80	Executes an HTTP-POST request with a request body of C<$bod>. See the	84	Executes an HTTP-POST request with a request body of C<$body>. See the
81	http_request function for details on additional parameters.	85	http_request function for details on additional parameters and the return
		86	value.
82		87
83	=item http_request $method => $url, key => value..., $cb->($data, $headers)	88	=item http_request $method => $url, key => value..., $cb->($data, $headers)
84		89
85	Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL	90	Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL
86	must be an absolute http or https URL.	91	must be an absolute http or https URL.
87		92
		93	When called in void context, nothing is returned. In other contexts,
		94	C<http_request> returns a "cancellation guard" - you have to keep the
		95	object at least alive until the callback get called. If the object gets
		96	destroyed before the callback is called, the request will be cancelled.
		97
88	The callback will be called with the response data as first argument	98	The callback will be called with the response body data as first argument
89	(or C<undef> if it wasn't available due to errors), and a hash-ref with	99	(or C<undef> if an error occured), and a hash-ref with response headers as
90	response headers as second argument.	100	second argument.
91		101
92	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
93	headers, the three "pseudo-headers" C<HTTPVersion>, C<Status> and	103	headers, the "pseudo-headers" (uppercase to avoid clashing with possible
94	C<Reason> contain the three parts of the HTTP Status-Line of the same	104	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the
		105	three parts of the HTTP Status-Line of the same name. If an error occurs
		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
		110	The pseudo-header C<URL> contains the actual URL (which can differ from
		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	$headers->{Redirect}[1]{Redirect} >> will then contain the original
		121	response, and so on.
		122
95	name. If the server sends a header multiple lines, then their contents	123	If the server sends a header multiple times, then their contents will be
96	will be joined together with C<\x00>.	124	joined together with a comma (C<,>), as per the HTTP spec.
97		125
98	If an internal error occurs, such as not being able to resolve a hostname,	126	If an internal error occurs, such as not being able to resolve a hostname,
99	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<599>	127	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<59x>
100	and the C<Reason> pseudo-header will contain an error message.	128	(usually C<599>) and the C<Reason> pseudo-header will contain an error
		129	message.
101		130
102	A typical callback might look like this:	131	A typical callback might look like this:
103		132
104	sub {	133	sub {
105	my ($body, $hdr) = @_;	134	my ($body, $hdr) = @_;
…		…
123		152
124	=item headers => hashref	153	=item headers => hashref
125		154
126	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
127	own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers	156	own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers
128	and will provide defaults for C<User-Agent:> and C<Referer:>.	157	and will provide defaults for C<User-Agent:> and C<Referer:> (this can be
		158	suppressed by using C<undef> for these headers in which case they won't be
		159	sent at all).
129		160
130	=item timeout => $seconds	161	=item timeout => $seconds
131		162
132	The time-out to use for various stages - each connect attempt will reset	163	The time-out to use for various stages - each connect attempt will reset
133	the timeout, as will read or write activity. Default timeout is 5 minutes.	164	the timeout, as will read or write activity, i.e. this is not an overall
		165	timeout.
		166
		167	Default timeout is 5 minutes.
134		168
135	=item proxy => [$host, $port[, $scheme]] or undef	169	=item proxy => [$host, $port[, $scheme]] or undef
136		170
137	Use the given http proxy for all requests. If not specified, then the	171	Use the given http proxy for all requests. If not specified, then the
138	default proxy (as specified by C<$ENV{http_proxy}>) is used.	172	default proxy (as specified by C<$ENV{http_proxy}>) is used.
139		173
140	C<$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
141	HTTPS.	175	HTTPS.
142		176
143	=item body => $string	177	=item body => $string
144		178
145	The request body, usually empty. Will be-sent as-is (future versions of	179	The request body, usually empty. Will be-sent as-is (future versions of
…		…
151	based on the original netscape specification.	185	based on the original netscape specification.
152		186
153	The C<$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
154	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
155	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
156	recommended, as expire times are currently being ignored.	190	recommended, as expiry times are currently being ignored.
157		191
158	Note that this cookie implementation is not of very high quality, nor	192	Note that this cookie implementation is not of very high quality, nor
159	meant to be complete. If you want complete cookie management you have to	193	meant to be complete. If you want complete cookie management you have to
160	do that on your own. C<cookie_jar> is meant as a quick fix to get some	194	do that on your own. C<cookie_jar> is meant as a quick fix to get some
161	cookie-using sites working. Cookies are a privacy disaster, do not use	195	cookie-using sites working. Cookies are a privacy disaster, do not use
162	them unless required to.	196	them unless required to.
		197
		198	=item tls_ctx => $scheme \| $tls_ctx
		199
		200	Specifies the AnyEvent::TLS context to be used for https connections. This
		201	parameter follows the same rules as the C<tls_ctx> parameter to
		202	L<AnyEvent::Handle>, but additionally, the two strings C<low> or
		203	C<high> can be specified, which give you a predefined low-security (no
		204	verification, highest compatibility) and high-security (CA and common-name
		205	verification) TLS context.
		206
		207	The default for this option is C<low>, which could be interpreted as "give
		208	me the page, no matter what".
		209
		210	=item on_prepare => $callback->($fh)
		211
		212	In rare cases you need to "tune" the socket before it is used to
		213	connect (for exmaple, to bind it on a given IP address). This parameter
		214	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>
		215	and behaves exactly the same way (e.g. it has to provide a
		216	timeout). See the description for the C<$prepare_cb> argument of
		217	C<AnyEvent::Socket::tcp_connect> for details.
		218
		219	=item tcp_connect => $callback->($host, $service, $connect_cb, $prepare_cb)
		220
		221	In even rarer cases you want total control over how AnyEvent::HTTP
		222	establishes connections. Normally it uses L<AnyEvent::Socket::tcp_connect>
		223	to do this, but you can provide your own C<tcp_connect> function -
		224	obviously, it has to follow the same calling conventions, except that it
		225	may always return a connection guard object.
		226
		227	There are probably lots of weird uses for this function, starting from
		228	tracing the hosts C<http_request> actually tries to connect, to (inexact
		229	but fast) host => IP address caching or even socks protocol support.
		230
		231	=item on_header => $callback->($headers)
		232
		233	When specified, this callback will be called with the header hash as soon
		234	as headers have been successfully received from the remote server (not on
		235	locally-generated errors).
		236
		237	It has to return either true (in which case AnyEvent::HTTP will continue),
		238	or false, in which case AnyEvent::HTTP will cancel the download (and call
		239	the finish callback with an error code of C<598>).
		240
		241	This callback is useful, among other things, to quickly reject unwanted
		242	content, which, if it is supposed to be rare, can be faster than first
		243	doing a C<HEAD> request.
		244
		245	Example: cancel the request unless the content-type is "text/html".
		246
		247	on_header => sub {
		248	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
		249	},
		250
		251	=item on_body => $callback->($partial_body, $headers)
		252
		253	When specified, all body data will be passed to this callback instead of
		254	to the completion callback. The completion callback will get the empty
		255	string instead of the body data.
		256
		257	It has to return either true (in which case AnyEvent::HTTP will continue),
		258	or false, in which case AnyEvent::HTTP will cancel the download (and call
		259	the completion callback with an error code of C<598>).
		260
		261	This callback is useful when the data is too large to be held in memory
		262	(so the callback writes it to a file) or when only some information should
		263	be extracted, or when the body should be processed incrementally.
		264
		265	It is usually preferred over doing your own body handling via
		266	C<want_body_handle>, but in case of streaming APIs, where HTTP is
		267	only used to create a connection, C<want_body_handle> is the better
		268	alternative, as it allows you to install your own event handler, reducing
		269	resource usage.
		270
		271	=item want_body_handle => $enable
		272
		273	When enabled (default is disabled), the behaviour of AnyEvent::HTTP
		274	changes considerably: after parsing the headers, and instead of
		275	downloading the body (if any), the completion callback will be
		276	called. Instead of the C<$body> argument containing the body data, the
		277	callback will receive the L<AnyEvent::Handle> object associated with the
		278	connection. In error cases, C<undef> will be passed. When there is no body
		279	(e.g. status C<304>), the empty string will be passed.
		280
		281	The handle object might or might not be in TLS mode, might be connected to
		282	a proxy, be a persistent connection etc., and configured in unspecified
		283	ways. The user is responsible for this handle (it will not be used by this
		284	module anymore).
		285
		286	This is useful with some push-type services, where, after the initial
		287	headers, an interactive protocol is used (typical example would be the
		288	push-style twitter API which starts a JSON/XML stream).
		289
		290	If you think you need this, first have a look at C<on_body>, to see if
		291	that doesn't solve your problem in a better way.
163		292
164	=back	293	=back
165		294
166	Example: make a simple HTTP GET request for http://www.nethype.de/	295	Example: make a simple HTTP GET request for http://www.nethype.de/
167		296
…		…
181	use Data::Dumper;	310	use Data::Dumper;
182	print Dumper $hdr;	311	print Dumper $hdr;
183	}	312	}
184	;	313	;
185		314
		315	Example: make another simple HTTP GET request, but immediately try to
		316	cancel it.
		317
		318	my $request = http_request GET => "http://www.nethype.de/", sub {
		319	my ($body, $hdr) = @_;
		320	print "$body\n";
		321	};
		322
		323	undef $request;
		324
186	=cut	325	=cut
187		326
188	sub _slot_schedule;	327	sub _slot_schedule;
189	sub _slot_schedule($) {	328	sub _slot_schedule($) {
190	my $host = shift;	329	my $host = shift;
191		330
192	while ($CO_SLOT{$host}[0] < $MAX_PER_HOST) {	331	while ($CO_SLOT{$host}[0] < $MAX_PER_HOST) {
193	if (my $cb = shift @{ $CO_SLOT{$host}[1] }) {	332	if (my $cb = shift @{ $CO_SLOT{$host}[1] }) {
194	# somebody wants that slot	333	# somebody wants that slot
195	++$CO_SLOT{$host}[0];	334	++$CO_SLOT{$host}[0];
		335	++$ACTIVE;
196		336
197	$cb->(AnyEvent::Util::guard {	337	$cb->(AnyEvent::Util::guard {
		338	--$ACTIVE;
198	--$CO_SLOT{$host}[0];	339	--$CO_SLOT{$host}[0];
199	_slot_schedule $host;	340	_slot_schedule $host;
200	});	341	});
201	} else {	342	} else {
202	# nobody wants the slot, maybe we can forget about it	343	# nobody wants the slot, maybe we can forget about it
…		…
211	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	352	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
212		353
213	_slot_schedule $_[0];	354	_slot_schedule $_[0];
214	}	355	}
215		356
		357	our $qr_nlnl = qr{(?<![^\012])\015?\012};
		358
		359	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
		360	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
		361
216	sub http_request($$$;@) {	362	sub http_request($$@) {
217	my $cb = pop;	363	my $cb = pop;
218	my ($method, $url, %arg) = @_;	364	my ($method, $url, %arg) = @_;
219		365
220	my %hdr;	366	my %hdr;
		367
		368	$arg{tls_ctx} = $TLS_CTX_LOW if $arg{tls_ctx} eq "low" \|\| !exists $arg{tls_ctx};
		369	$arg{tls_ctx} = $TLS_CTX_HIGH if $arg{tls_ctx} eq "high";
221		370
222	$method = uc $method;	371	$method = uc $method;
223		372
224	if (my $hdr = $arg{headers}) {	373	if (my $hdr = $arg{headers}) {
225	while (my ($k, $v) = each %$hdr) {	374	while (my ($k, $v) = each %$hdr) {
226	$hdr{lc $k} = $v;	375	$hdr{lc $k} = $v;
227	}	376	}
228	}	377	}
229		378
		379	# pseudo headers for all subsequent responses
		380	my @pseudo = (URL => $url);
		381	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
		382
230	my $recurse = exists $arg{recurse} ? $arg{recurse} : $MAX_RECURSE;	383	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
231		384
232	return $cb->(undef, { Status => 599, Reason => "recursion limit reached" })	385	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
233	if $recurse < 0;	386	if $recurse < 0;
234		387
235	my $proxy = $arg{proxy} \|\| $PROXY;	388	my $proxy = $arg{proxy} \|\| $PROXY;
236	my $timeout = $arg{timeout} \|\| $TIMEOUT;	389	my $timeout = $arg{timeout} \|\| $TIMEOUT;
237		390
238	$hdr{"user-agent"} \|\|= $USERAGENT;
239
240	my ($scheme, $authority, $upath, $query, $fragment) =	391	my ($uscheme, $uauthority, $upath, $query, $fragment) =
241	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:\?([^#]))?(?:#(.))?\|;	392	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:(\?[^#]))?(?:#(.))?\|;
242		393
243	$scheme = lc $scheme;	394	$uscheme = lc $uscheme;
244		395
245	my $uport = $scheme eq "http" ? 80	396	my $uport = $uscheme eq "http" ? 80
246	: $scheme eq "https" ? 443	397	: $uscheme eq "https" ? 443
247	: return $cb->(undef, { Status => 599, Reason => "only http and https URL schemes supported" });	398	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
248		399
249	$authority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	400	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
250	or return $cb->(undef, { Status => 599, Reason => "unparsable URL" });	401	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
251		402
252	my $uhost = $1;	403	my $uhost = $1;
253	$uport = $2 if defined $2;	404	$uport = $2 if defined $2;
254		405
		406	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
		407	unless exists $hdr{host};
		408
255	$uhost =~ s/^\[(.*)\]$/$1/;	409	$uhost =~ s/^\[(.*)\]$/$1/;
256	$upath .= "?$query" if length $query;	410	$upath .= $query if length $query;
257		411
258	$upath =~ s%^/?%/%;	412	$upath =~ s%^/?%/%;
259
260	$hdr{referer} \|\|= "$scheme://$authority$upath";
261		413
262	# cookie processing	414	# cookie processing
263	if (my $jar = $arg{cookie_jar}) {	415	if (my $jar = $arg{cookie_jar}) {
264	%$jar = () if $jar->{version} < 1;	416	%$jar = () if $jar->{version} != 1;
265		417
266	my @cookie;	418	my @cookie;
267		419
268	while (my ($chost, $v) = each %$jar) {	420	while (my ($chost, $v) = each %$jar) {
		421	if ($chost =~ /^\./) {
269	next unless $chost eq substr $uhost, -length $chost;	422	next unless $chost eq substr $uhost, -length $chost;
270	next unless $chost =~ /^\./;	423	} elsif ($chost =~ /\./) {
		424	next unless $chost eq $uhost;
		425	} else {
		426	next;
		427	}
271		428
272	while (my ($cpath, $v) = each %$v) {	429	while (my ($cpath, $v) = each %$v) {
273	next unless $cpath eq substr $upath, 0, length $cpath;	430	next unless $cpath eq substr $upath, 0, length $cpath;
274		431
275	while (my ($k, $v) = each %$v) {	432	while (my ($k, $v) = each %$v) {
276	next if $scheme ne "https" && exists $v->{secure};	433	next if $uscheme ne "https" && exists $v->{secure};
		434	my $value = $v->{value};
		435	$value =~ s/([\\"])/\\$1/g;
277	push @cookie, "$k=$v->{value}";	436	push @cookie, "$k=\"$value\"";
278	}	437	}
279	}	438	}
280	}	439	}
281		440
282	$hdr{cookie} = join "; ", @cookie	441	$hdr{cookie} = join "; ", @cookie
283	if @cookie;	442	if @cookie;
284	}	443	}
285		444
286	my ($rhost, $rport, $rpath); # request host, port, path	445	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
287		446
288	if ($proxy) {	447	if ($proxy) {
289	($rhost, $rport, $scheme) = @$proxy;	448	($rpath, $rhost, $rport, $rscheme) = ($url, @$proxy);
290	$rpath = $url;	449
		450	$rscheme = "http" unless defined $rscheme;
		451
		452	# don't support https requests over https-proxy transport,
		453	# can't be done with tls as spec'ed, unless you double-encrypt.
		454	$rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";
291	} else {	455	} else {
292	($rhost, $rport, $rpath) = ($uhost, $uport, $upath);	456	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
293	$hdr{host} = $uhost;
294	}	457	}
295		458
		459	# leave out fragment and query string, just a heuristic
		460	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};
		461	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};
		462
296	$hdr{"content-length"} = length $arg{body};	463	$hdr{"content-length"} = length $arg{body}
		464	if length $arg{body} \|\| $method ne "GET";
297		465
298	my %state = (connect_guard => 1);	466	my %state = (connect_guard => 1);
299		467
300	_get_slot $uhost, sub {	468	_get_slot $uhost, sub {
301	$state{slot_guard} = shift;	469	$state{slot_guard} = shift;
302		470
303	return unless $state{connect_guard};	471	return unless $state{connect_guard};
304		472
305	$state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {	473	my $connect_cb = sub {
306	$state{fh} = shift	474	$state{fh} = shift
		475	or do {
		476	my $err = "$!";
		477	%state = ();
307	or return $cb->(undef, { Status => 599, Reason => "$!" });	478	return $cb->(undef, { @pseudo, Status => 599, Reason => $err });
		479	};
308		480
309	delete $state{connect_guard}; # reduce memory usage, save a tree	481	pop; # free memory, save a tree
		482
		483	return unless delete $state{connect_guard};
310		484
311	# get handle	485	# get handle
312	$state{handle} = new AnyEvent::Handle	486	$state{handle} = new AnyEvent::Handle
313	fh => $state{fh},	487	fh => $state{fh},
314	($scheme eq "https" ? (tls => "connect") : ());	488	peername => $rhost,
		489	tls_ctx => $arg{tls_ctx},
		490	# these need to be reconfigured on keepalive handles
		491	timeout => $timeout,
		492	on_error => sub {
		493	%state = ();
		494	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });
		495	},
		496	on_eof => sub {
		497	%state = ();
		498	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });
		499	},
		500	;
315		501
316	# limit the number of persistent connections	502	# limit the number of persistent connections
		503	# keepalive not yet supported
317	if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	504	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
318	++$KA_COUNT{$_[1]};	505	# ++$KA_COUNT{$_[1]};
319	$state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} };	506	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
		507	# --$KA_COUNT{$_[1]}
		508	# };
320	$hdr{connection} = "keep-alive";	509	# $hdr{connection} = "keep-alive";
321	delete $hdr{connection}; # keep-alive not yet supported
322	} else {	510	# } else {
323	delete $hdr{connection};	511	delete $hdr{connection};
324	}	512	# }
325		513
326	# (re-)configure handle	514	$state{handle}->starttls ("connect") if $rscheme eq "https";
327	$state{handle}->timeout ($timeout);
328	$state{handle}->on_error (sub {
329	%state = ();
330	$cb->(undef, { Status => 599, Reason => "$!" });
331	});
332	$state{handle}->on_eof (sub {
333	%state = ();
334	$cb->(undef, { Status => 599, Reason => "unexpected end-of-file" });
335	});
336		515
		516	# handle actual, non-tunneled, request
		517	my $handle_actual_request = sub {
		518	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
		519
337	# send request	520	# send request
338	$state{handle}->push_write (	521	$state{handle}->push_write (
339	"$method $rpath HTTP/1.0\015\012"	522	"$method $rpath HTTP/1.0\015\012"
340	. (join "", map "$_: $hdr{$_}\015\012", keys %hdr)	523	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
341	. "\015\012"	524	. "\015\012"
342	. (delete $arg{body})	525	. (delete $arg{body})
343	);
344
345	%hdr = (); # reduce memory usage, save a kitten
346
347	# status line
348	$state{handle}->push_read (line => qr/\015?\012/, sub {
349	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) \s+ ([^\015\012]+)/ix
350	or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])" }));
351
352	my %hdr = ( # response headers
353	HTTPVersion => "\x00$1",
354	Status => "\x00$2",
355	Reason => "\x00$3",
356	);	526	);
357		527
358	# headers, could be optimized a bit	528	# return if error occured during push_write()
		529	return unless %state;
		530
		531	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
		532
		533	# status line and headers
359	$state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub {	534	$state{handle}->push_read (line => $qr_nlnl, sub {
		535	my $keepalive = pop;
		536
360	for ("$_[1]\012") {	537	for ("$_[1]") {
361	# we support spaces in field names, as lotus domino	538	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
362	# creates them.	539
		540	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )? \015?\012/igxc
		541	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
		542
		543	push @pseudo,
		544	HTTPVersion => $1,
		545	Status => $2,
		546	Reason => $3,
		547	;
		548
		549	# things seen, not parsed:
		550	# p3pP="NON CUR OTPi OUR NOR UNI"
		551
363	$hdr{lc $1} .= "\x00$2"	552	$hdr{lc $1} .= ",$2"
364	while /\G	553	while /\G
365	([^:\000-\037]+):	554	([^:\000-\037]*):
366	[\011\040]*	555	[\011\040]*
367	((?: [^\015\012]+ \| \015?\012[\011\040] )*)	556	((?: [^\012]+ \| \012[\011\040] )*)
368	\015?\012	557	\012
369	/gxc;	558	/gxc;
370		559
371	/\G$/	560	/\G$/
372	or return (%state = (), $cb->(undef, { Status => 599, Reason => "garbled response headers" }));	561	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
373	}	562	}
374		563
		564	# remove the "," prefix we added to all headers above
375	substr $_, 0, 1, ""	565	substr $_, 0, 1, ""
376	for values %hdr;	566	for values %hdr;
377		567
378	my $finish = sub {	568	# patch in all pseudo headers
		569	%hdr = (%hdr, @pseudo);
		570
		571	# redirect handling
		572	# microsoft and other shitheads don't give a shit for following standards,
		573	# try to support some common forms of broken Location headers.
		574	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		575	$hdr{location} =~ s/^\.\/+//;
		576
		577	my $url = "$rscheme://$uhost:$uport";
		578
		579	unless ($hdr{location} =~ s/^\///) {
		580	$url .= $upath;
		581	$url =~ s/\/[^\/]*$//;
		582	}
		583
		584	$hdr{location} = "$url/$hdr{location}";
		585	}
		586
		587	my $redirect;
		588
		589	if ($recurse) {
		590	my $status = $hdr{Status};
		591
		592	# industry standard is to redirect POST as GET for
		593	# 301, 302 and 303, in contrast to http/1.0 and 1.1.
		594	# also, the UA should ask the user for 301 and 307 and POST,
		595	# industry standard seems to be to simply follow.
		596	# we go with the industry standard.
		597	if ($status == 301 or $status == 302 or $status == 303) {
		598	# HTTP/1.1 is unclear on how to mutate the method
		599	$method = "GET" unless $method eq "HEAD";
		600	$redirect = 1;
		601	} elsif ($status == 307) {
		602	$redirect = 1;
		603	}
		604	}
		605
		606	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
		607	$state{handle}->destroy if $state{handle};
379	%state = ();	608	%state = ();
380		609
		610	if (defined $_[1]) {
		611	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		612	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		613	}
		614
381	# set-cookie processing	615	# set-cookie processing
382	if ($arg{cookie_jar} && exists $hdr{"set-cookie"}) {	616	if ($arg{cookie_jar}) {
383	for (split /\x00/, $hdr{"set-cookie"}) {	617	for ($hdr{"set-cookie"}) {
384	my ($cookie, @arg) = split /;\s*/;	618	# parse NAME=VALUE
385	my ($name, $value) = split /=/, $cookie, 2;	619	my @kv;
386	my %kv = (value => $value, map { split /=/, $_, 2 } @arg);	620
		621	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
		622	my $name = $1;
		623	my $value = $3;
		624
		625	unless ($value) {
		626	$value = $2;
		627	$value =~ s/\\(.)/$1/gs;
		628	}
		629
		630	push @kv, $name => $value;
		631
		632	last unless /\G\s*;/gc;
		633	}
		634
		635	last unless @kv;
		636
		637	my $name = shift @kv;
		638	my %kv = (value => shift @kv, @kv);
		639
		640	my $cdom;
		641	my $cpath = (delete $kv{path}) \|\| "/";
		642
		643	if (exists $kv{domain}) {
		644	$cdom = delete $kv{domain};
387		645
388	my $cdom = (delete $kv{domain}) \|\| $uhost;
389	my $cpath = (delete $kv{path}) \|\| "/";
390
391	$cdom =~ s/^.?/./; # make sure it starts with a "."	646	$cdom =~ s/^\.?/./; # make sure it starts with a "."
392		647
393	next if $cdom =~ /\.$/;	648	next if $cdom =~ /\.$/;
394		649
395	# this is not rfc-like and not netscape-like. go figure.	650	# this is not rfc-like and not netscape-like. go figure.
396	my $ndots = $cdom =~ y/.//;	651	my $ndots = $cdom =~ y/.//;
397	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);	652	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		653	} else {
		654	$cdom = $uhost;
		655	}
398		656
399	# store it	657	# store it
400	$arg{cookie_jar}{version} = 1;	658	$arg{cookie_jar}{version} = 1;
401	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;	659	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
		660
		661	redo if /\G\s*,/gc;
402	}	662	}
403	}	663	}
404		664
405	if ($_[1]{Status} =~ /^x30[12]$/ && $recurse) {	665	if ($redirect && exists $hdr{location}) {
406	# microsoft and other assholes don't give a shit for following standards,	666	# we ignore any errors, as it is very common to receive
407	# try to support a common form of broken Location header.	667	# Content-Length != 0 but no actual body
408	$_[1]{location} =~ s%^/%$scheme://$uhost:$uport/%;	668	# we also access %hdr, as $_[1] might be an erro
409		669	http_request (
410	http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb);	670	$method => $hdr{location},
		671	%arg,
		672	recurse => $recurse - 1,
		673	Redirect => [$_[0], \%hdr],
		674	$cb);
411	} else {	675	} else {
412	$cb->($_[0], $_[1]);	676	$cb->($_[0], \%hdr);
413	}	677	}
414	};	678	};
415		679
416	if ($hdr{Status} =~ /^(?:1..\|204\|304)$/ or $method eq "HEAD") {	680	my $len = $hdr{"content-length"};
		681
		682	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		683	$finish->(undef, 598 => "Request cancelled by on_header");
		684	} elsif (
		685	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		686	or $method eq "HEAD"
		687	or (defined $len && !$len)
		688	) {
		689	# no body
417	$finish->(undef, \%hdr);	690	$finish->("", undef, undef, 1);
418	} else {	691	} else {
419	if (exists $hdr{"content-length"}) {	692	# body handling, four different code paths
420	$_[0]->unshift_read (chunk => $hdr{"content-length"}, sub {	693	# for want_body_handle, on_body (2x), normal (2x)
421	# could cache persistent connection now	694	# we might read too much here, but it does not matter yet (no pipelining)
422	if ($hdr{connection} =~ /\bkeep-alive\b/i) {	695	if (!$redirect && $arg{want_body_handle}) {
423	# but we don't, due to misdesigns, this is annoyingly complex	696	$_[0]->on_eof (undef);
		697	$_[0]->on_error (undef);
		698	$_[0]->on_read (undef);
		699
		700	$finish->(delete $state{handle});
		701
		702	} elsif ($arg{on_body}) {
		703	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		704	if ($len) {
		705	$_[0]->on_read (sub {
		706	$len -= length $_[0]{rbuf};
		707
		708	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		709	or $finish->(undef, 598 => "Request cancelled by on_body");
		710
		711	$len > 0
		712	or $finish->("", undef, undef, 1);
424	};	713	});
425		714	} else {
		715	$_[0]->on_eof (sub {
426	$finish->($_[1], \%hdr);	716	$finish->("");
		717	});
		718	$_[0]->on_read (sub {
		719	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		720	or $finish->(undef, 598 => "Request cancelled by on_body");
		721	});
427	});	722	}
428	} else {	723	} else {
429	# too bad, need to read until we get an error or EOF,
430	# no way to detect winged data.
431	$_[0]->on_error (sub {
432	$finish->($_[0]{rbuf}, \%hdr);
433	});
434	$_[0]->on_eof (undef);	724	$_[0]->on_eof (undef);
		725
		726	if ($len) {
		727	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		728	$_[0]->on_read (sub {
		729	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
		730	if $len <= length $_[0]{rbuf};
		731	});
		732	} else {
		733	$_[0]->on_error (sub {
		734	($! == Errno::EPIPE \|\| !$!)
		735	? $finish->(delete $_[0]{rbuf})
		736	: $finish->(undef, 599 => $_[2]);
		737	});
435	$_[0]->on_read (sub { });	738	$_[0]->on_read (sub { });
		739	}
436	}	740	}
437	}	741	}
438	});	742	});
439	});	743	};
440	}, sub {	744
441	$timeout	745	# now handle proxy-CONNECT method
		746	if ($proxy && $uscheme eq "https") {
		747	# oh dear, we have to wrap it into a connect request
		748
		749	# maybe re-use $uauthority with patched port?
		750	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
		751	$state{handle}->push_read (line => $qr_nlnl, sub {
		752	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
		753	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
		754
		755	if ($2 == 200) {
		756	$rpath = $upath;
		757	&$handle_actual_request;
		758	} else {
		759	%state = ();
		760	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
		761	}
		762	});
		763	} else {
		764	&$handle_actual_request;
		765	}
442	};	766	};
		767
		768	my $tcp_connect = $arg{tcp_connect}
		769	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		770
		771	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		772
443	};	773	};
444		774
445	defined wantarray && AnyEvent::Util::guard { %state = () }	775	defined wantarray && AnyEvent::Util::guard { %state = () }
446	}	776	}
447		777
448	sub http_get($$;@) {	778	sub http_get($@) {
449	unshift @_, "GET";	779	unshift @_, "GET";
450	&http_request	780	&http_request
451	}	781	}
452		782
453	sub http_head($$;@) {	783	sub http_head($@) {
454	unshift @_, "HEAD";	784	unshift @_, "HEAD";
455	&http_request	785	&http_request
456	}	786	}
457		787
458	sub http_post($$$;@) {	788	sub http_post($$@) {
		789	my $url = shift;
459	unshift @_, "POST", "body";	790	unshift @_, "POST", $url, "body";
460	&http_request	791	&http_request
461	}	792	}
462		793
463	=back	794	=back
464		795
		796	=head2 DNS CACHING
		797
		798	AnyEvent::HTTP uses the AnyEvent::Socket::tcp_connect function for
		799	the actual connection, which in turn uses AnyEvent::DNS to resolve
		800	hostnames. The latter is a simple stub resolver and does no caching
		801	on its own. If you want DNS caching, you currently have to provide
		802	your own default resolver (by storing a suitable resolver object in
		803	C<$AnyEvent::DNS::RESOLVER>).
		804
465	=head2 GLOBAL FUNCTIONS AND VARIABLES	805	=head2 GLOBAL FUNCTIONS AND VARIABLES
466		806
467	=over 4	807	=over 4
468		808
469	=item AnyEvent::HTTP::set_proxy "proxy-url"	809	=item AnyEvent::HTTP::set_proxy "proxy-url"
470		810
471	Sets the default proxy server to use. The proxy-url must begin with a	811	Sets the default proxy server to use. The proxy-url must begin with a
472	string of the form C<http://host:port> (optionally C<https:...>).	812	string of the form C<http://host:port> (optionally C<https:...>), croaks
		813	otherwise.
		814
		815	To clear an already-set proxy, use C<undef>.
		816
		817	=item $date = AnyEvent::HTTP::format_date $timestamp
		818
		819	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
		820	Date (RFC 2616).
		821
		822	=item $timestamp = AnyEvent::HTTP::parse_date $date
		823
		824	Takes a HTTP Date (RFC 2616) and returns the corresponding POSIX
		825	timestamp, or C<undef> if the date cannot be parsed.
473		826
474	=item $AnyEvent::HTTP::MAX_RECURSE	827	=item $AnyEvent::HTTP::MAX_RECURSE
475		828
476	The default value for the C<recurse> request parameter (default: C<10>).	829	The default value for the C<recurse> request parameter (default: C<10>).
477		830
478	=item $AnyEvent::HTTP::USERAGENT	831	=item $AnyEvent::HTTP::USERAGENT
479		832
480	The default value for the C<User-Agent> header (the default is	833	The default value for the C<User-Agent> header (the default is
481	C<Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>).	834	C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>).
482		835
483	=item $AnyEvent::HTTP::MAX_PERSISTENT	836	=item $AnyEvent::HTTP::MAX_PER_HOST
484		837
485	The maximum number of persistent connections to keep open (default: 8).	838	The maximum number of concurrent connections to the same host (identified
		839	by the hostname). If the limit is exceeded, then the additional requests
		840	are queued until previous connections are closed.
486		841
487	Not implemented currently.	842	The default value for this is C<4>, and it is highly advisable to not
		843	increase it.
488		844
489	=item $AnyEvent::HTTP::PERSISTENT_TIMEOUT	845	=item $AnyEvent::HTTP::ACTIVE
490		846
491	The maximum time to cache a persistent connection, in seconds (default: 2).	847	The number of active connections. This is not the number of currently
492		848	running requests, but the number of currently open and non-idle TCP
493	Not implemented currently.	849	connections. This number of can be useful for load-leveling.
494		850
495	=back	851	=back
496		852
497	=cut	853	=cut
498		854
		855	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		856	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		857
		858	sub format_date($) {
		859	my ($time) = @_;
		860
		861	# RFC 822/1123 format
		862	my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time;
		863
		864	sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT",
		865	$weekday[$wday], $mday, $month[$mon], $year + 1900,
		866	$H, $M, $S;
		867	}
		868
		869	sub parse_date($) {
		870	my ($date) = @_;
		871
		872	my ($d, $m, $y, $H, $M, $S);
		873
		874	if ($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$/) {
		875	# RFC 822/1123, required by RFC 2616
		876	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
		877
		878	} elsif ($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$/) {
		879	# RFC 850
		880	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
		881
		882	} elsif ($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])$/) {
		883	# ISO C's asctime
		884	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
		885	}
		886	# other formats fail in the loop below
		887
		888	for (0..11) {
		889	if ($m eq $month[$_]) {
		890	require Time::Local;
		891	return Time::Local::timegm ($S, $M, $H, $d, $_, $y);
		892	}
		893	}
		894
		895	undef
		896	}
		897
499	sub set_proxy($) {	898	sub set_proxy($) {
		899	if (length $_[0]) {
500	$PROXY = [$2, $3 \|\| 3128, $1] if $_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix;	900	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
		901	or Carp::croak "$_[0]: invalid proxy URL";
		902	$PROXY = [$2, $3 \|\| 3128, $1]
		903	} else {
		904	undef $PROXY;
		905	}
501	}	906	}
502		907
503	# initialise proxy from environment	908	# initialise proxy from environment
		909	eval {
504	set_proxy $ENV{http_proxy};	910	set_proxy $ENV{http_proxy};
		911	};
		912
		913	=head2 SOCKS PROXIES
		914
		915	Socks proxies are not directly supported by AnyEvent::HTTP. You can
		916	compile your perl to support socks, or use an external program such as
		917	F<socksify> (dante) or F<tsocks> to make your program use a socks proxy
		918	transparently.
		919
		920	Alternatively, for AnyEvent::HTTP only, you can use your own
		921	C<tcp_connect> function that does the proxy handshake - here is an example
		922	that works with socks4a proxies:
		923
		924	use Errno;
		925	use AnyEvent::Util;
		926	use AnyEvent::Socket;
		927	use AnyEvent::Handle;
		928
		929	# host, port and username of/for your socks4a proxy
		930	my $socks_host = "10.0.0.23";
		931	my $socks_port = 9050;
		932	my $socks_user = "";
		933
		934	sub socks4a_connect {
		935	my ($host, $port, $connect_cb, $prepare_cb) = @_;
		936
		937	my $hdl = new AnyEvent::Handle
		938	connect => [$socks_host, $socks_port],
		939	on_prepare => sub { $prepare_cb->($_[0]{fh}) },
		940	on_error => sub { $connect_cb->() },
		941	;
		942
		943	$hdl->push_write (pack "CCnNZZ", 4, 1, $port, 1, $socks_user, $host);
		944
		945	$hdl->push_read (chunk => 8, sub {
		946	my ($hdl, $chunk) = @_;
		947	my ($status, $port, $ipn) = unpack "xCna4", $chunk;
		948
		949	if ($status == 0x5a) {
		950	$connect_cb->($hdl->{fh}, (format_address $ipn) . ":$port");
		951	} else {
		952	$! = Errno::ENXIO; $connect_cb->();
		953	}
		954	});
		955
		956	$hdl
		957	}
		958
		959	Use C<socks4a_connect> instead of C<tcp_connect> when doing C<http_request>s,
		960	possibly after switching off other proxy types:
		961
		962	AnyEvent::HTTP::set_proxy undef; # usually you do not want other proxies
		963
		964	http_get 'http://www.google.com', tcp_connect => \&socks4a_connect, sub {
		965	my ($data, $headers) = @_;
		966	...
		967	};
505		968
506	=head1 SEE ALSO	969	=head1 SEE ALSO
507		970
508	L<AnyEvent>.	971	L<AnyEvent>.
509		972
510	=head1 AUTHOR	973	=head1 AUTHOR
511		974
512	Marc Lehmann <schmorp@schmorp.de>	975	Marc Lehmann <schmorp@schmorp.de>
513	http://home.schmorp.de/	976	http://home.schmorp.de/
		977
		978	With many thanks to Дмитрий Шалашов, who provided countless
		979	testcases and bugreports.
514		980
515	=cut	981	=cut
516		982
517	1	983	1
518		984

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.12 by root, Thu Jun 5 16:33:02 2008 UTC vs. Revision 1.65 by root, Fri Dec 31 03:47:32 2010 UTC

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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.12 by root, Thu Jun 5 16:33:02 2008 UTC vs.
Revision 1.65 by root, Fri Dec 31 03:47:32 2010 UTC