[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 1.71 by root, Fri Dec 31 20:50:58 2010 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
…		…
148	Whether to recurse requests or not, e.g. on redirects, authentication	150	Whether to recurse requests or not, e.g. on redirects, authentication
149	retries and so on, and how often to do so.	151	retries and so on, and how often to do so.
150		152
151	=item headers => hashref	153	=item headers => hashref
152		154
153	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
154	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
155	and will provide defaults for C<User-Agent:> and C<Referer:> (this can be	157	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	158	(this can be suppressed by using C<undef> for these headers in which case
157	sent at all).	159	they won't be sent at all).
158		160
159	=item timeout => $seconds	161	=item timeout => $seconds
160		162
161	The time-out to use for various stages - each connect attempt will reset	163	The time-out to use for various stages - each connect attempt will reset
162	the timeout, as will read or write activity, i.e. this is not an overall	164	the timeout, as will read or write activity, i.e. this is not an overall
…		…
172	C<$scheme> must be either missing, C<http> for HTTP or C<https> for	174	C<$scheme> must be either missing, C<http> for HTTP or C<https> for
173	HTTPS.	175	HTTPS.
174		176
175	=item body => $string	177	=item body => $string
176		178
177	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
178	this module might offer more options).	180	this module might offer more options).
179		181
180	=item cookie_jar => $hash_ref	182	=item cookie_jar => $hash_ref
181		183
182	Passing this parameter enables (simplified) cookie-processing, loosely	184	Passing this parameter enables (simplified) cookie-processing, loosely
183	based on the original netscape specification.	185	based on the original netscape specification.
184		186
185	The C<$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
186	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
187	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
188	recommended, as expiry times are currently being ignored.	190	recommended, as session-only cookies might survive longer than expected.
189		191
190	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
191	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
192	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
193	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
194	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.
195		201
196	=item tls_ctx => $scheme \| $tls_ctx	202	=item tls_ctx => $scheme \| $tls_ctx
197		203
198	Specifies the AnyEvent::TLS context to be used for https connections. This	204	Specifies the AnyEvent::TLS context to be used for https connections. This
199	parameter follows the same rules as the C<tls_ctx> parameter to	205	parameter follows the same rules as the C<tls_ctx> parameter to
…		…
212	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>	218	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>
213	and behaves exactly the same way (e.g. it has to provide a	219	and behaves exactly the same way (e.g. it has to provide a
214	timeout). See the description for the C<$prepare_cb> argument of	220	timeout). See the description for the C<$prepare_cb> argument of
215	C<AnyEvent::Socket::tcp_connect> for details.	221	C<AnyEvent::Socket::tcp_connect> for details.
216		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
217	=item on_header => $callback->($headers)	235	=item on_header => $callback->($headers)
218		236
219	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
220	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
221	locally-generated errors).	239	locally-generated errors).
…		…
226		244
227	This callback is useful, among other things, to quickly reject unwanted	245	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	246	content, which, if it is supposed to be rare, can be faster than first
229	doing a C<HEAD> request.	247	doing a C<HEAD> request.
230		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
231	Example: cancel the request unless the content-type is "text/html".	253	Example: cancel the request unless the content-type is "text/html".
232		254
233	on_header => sub {	255	on_header => sub {
234	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	256	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
235	},	257	},
…		…
241	string instead of the body data.	263	string instead of the body data.
242		264
243	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),
244	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
245	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.
246		271
247	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
248	(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
249	be extracted, or when the body should be processed incrementally.	274	be extracted, or when the body should be processed incrementally.
250		275
…		…
276	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
277	that doesn't solve your problem in a better way.	302	that doesn't solve your problem in a better way.
278		303
279	=back	304	=back
280		305
281	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.
282		308
283	http_request GET => "http://www.nethype.de/", sub {	309	http_request GET => "http://www.nethype.de/", sub {
284	my ($body, $hdr) = @_;	310	my ($body, $hdr) = @_;
285	print "$body\n";	311	print "$body\n";
286	};	312	};
287		313
288	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
289	timeout of 30 seconds.	315	timeout of 30 seconds.
290		316
291	http_request	317	http_request
292	GET => "https://www.google.com",	318	GET => "https://www.google.com",
293	timeout => 30,	319	timeout => 30,
…		…
296	use Data::Dumper;	322	use Data::Dumper;
297	print Dumper $hdr;	323	print Dumper $hdr;
298	}	324	}
299	;	325	;
300		326
301	Example: make another simple HTTP GET request, but immediately try to	327	Example: do another simple HTTP GET request, but immediately try to
302	cancel it.	328	cancel it.
303		329
304	my $request = http_request GET => "http://www.nethype.de/", sub {	330	my $request = http_request GET => "http://www.nethype.de/", sub {
305	my ($body, $hdr) = @_;	331	my ($body, $hdr) = @_;
306	print "$body\n";	332	print "$body\n";
…		…
338	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	364	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
339		365
340	_slot_schedule $_[0];	366	_slot_schedule $_[0];
341	}	367	}
342		368
343	our $qr_nl = qr{\015?\012};	369	sub cookie_jar_extract($$$$) {
		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
344	our $qr_nlnl = qr{(?<![^\012])\015?\012};	440	our $qr_nlnl = qr{(?<![^\012])\015?\012};
345		441
346	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	442	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
347	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	443	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
348		444
…		…
367	my @pseudo = (URL => $url);	463	my @pseudo = (URL => $url);
368	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};	464	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
369		465
370	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	466	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
371		467
372	return $cb->(undef, { Status => 599, Reason => "Too many redirections", @pseudo })	468	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
373	if $recurse < 0;	469	if $recurse < 0;
374		470
375	my $proxy = $arg{proxy} \|\| $PROXY;	471	my $proxy = $arg{proxy} \|\| $PROXY;
376	my $timeout = $arg{timeout} \|\| $TIMEOUT;	472	my $timeout = $arg{timeout} \|\| $TIMEOUT;
377		473
…		…
380		476
381	$uscheme = lc $uscheme;	477	$uscheme = lc $uscheme;
382		478
383	my $uport = $uscheme eq "http" ? 80	479	my $uport = $uscheme eq "http" ? 80
384	: $uscheme eq "https" ? 443	480	: $uscheme eq "https" ? 443
385	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", @pseudo });	481	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
386		482
387	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	483	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
388	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", @pseudo });	484	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
389		485
390	my $uhost = $1;	486	my $uhost = $1;
391	$uport = $2 if defined $2;	487	$uport = $2 if defined $2;
392		488
393	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"	489	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
…		…
398		494
399	$upath =~ s%^/?%/%;	495	$upath =~ s%^/?%/%;
400		496
401	# cookie processing	497	# cookie processing
402	if (my $jar = $arg{cookie_jar}) {	498	if (my $jar = $arg{cookie_jar}) {
403	%$jar = () if $jar->{version} != 1;	499	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
404		500
405	my @cookie;
406
407	while (my ($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	501	$hdr{cookie} = join "; ", @$cookies
429	if @cookie;	502	if @$cookies;
430	}	503	}
431		504
432	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	505	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
433		506
434	if ($proxy) {	507	if ($proxy) {
…		…
442	} else {	515	} else {
443	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	516	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
444	}	517	}
445		518
446	# leave out fragment and query string, just a heuristic	519	# leave out fragment and query string, just a heuristic
447	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	520	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
448	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	521	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
449		522
450	$hdr{"content-length"} = length $arg{body}	523	$hdr{"content-length"} = length $arg{body}
451	if length $arg{body} \|\| $method ne "GET";	524	if length $arg{body} \|\| $method ne "GET";
452		525
		526	$hdr{connection} = "close TE"; #1.1
		527	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
		528
453	my %state = (connect_guard => 1);	529	my %state = (connect_guard => 1);
454		530
455	_get_slot $uhost, sub {	531	_get_slot $uhost, sub {
456	$state{slot_guard} = shift;	532	$state{slot_guard} = shift;
457		533
458	return unless $state{connect_guard};	534	return unless $state{connect_guard};
459		535
460	$state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {	536	my $connect_cb = sub {
461	$state{fh} = shift	537	$state{fh} = shift
462	or do {	538	or do {
463	my $err = "$!";	539	my $err = "$!";
464	%state = ();	540	%state = ();
465	return $cb->(undef, { Status => 599, Reason => $err, @pseudo });	541	return $cb->(undef, { @pseudo, Status => 599, Reason => $err });
466	};	542	};
467		543
468	pop; # free memory, save a tree	544	pop; # free memory, save a tree
469		545
470	return unless delete $state{connect_guard};	546	return unless delete $state{connect_guard};
…		…
476	tls_ctx => $arg{tls_ctx},	552	tls_ctx => $arg{tls_ctx},
477	# these need to be reconfigured on keepalive handles	553	# these need to be reconfigured on keepalive handles
478	timeout => $timeout,	554	timeout => $timeout,
479	on_error => sub {	555	on_error => sub {
480	%state = ();	556	%state = ();
481	$cb->(undef, { Status => 599, Reason => $_[2], @pseudo });	557	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });
482	},	558	},
483	on_eof => sub {	559	on_eof => sub {
484	%state = ();	560	%state = ();
485	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", @pseudo });	561	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });
486	},	562	},
487	;	563	;
488		564
489	# limit the number of persistent connections	565	# limit the number of persistent connections
490	# keepalive not yet supported	566	# keepalive not yet supported
…		…
492	# ++$KA_COUNT{$_[1]};	568	# ++$KA_COUNT{$_[1]};
493	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {	569	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
494	# --$KA_COUNT{$_[1]}	570	# --$KA_COUNT{$_[1]}
495	# };	571	# };
496	# $hdr{connection} = "keep-alive";	572	# $hdr{connection} = "keep-alive";
497	# } else {
498	delete $hdr{connection};
499	# }	573	# }
500		574
501	$state{handle}->starttls ("connect") if $rscheme eq "https";	575	$state{handle}->starttls ("connect") if $rscheme eq "https";
502		576
503	# handle actual, non-tunneled, request	577	# handle actual, non-tunneled, request
504	my $handle_actual_request = sub {	578	my $handle_actual_request = sub {
505	$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};
506		580
507	# send request	581	# send request
508	$state{handle}->push_write (	582	$state{handle}->push_write (
509	"$method $rpath HTTP/1.0\015\012"	583	"$method $rpath HTTP/1.1\015\012"
510	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	584	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
511	. "\015\012"	585	. "\015\012"
512	. (delete $arg{body})	586	. (delete $arg{body})
513	);	587	);
514		588
515	# return if error occured during push_write()	589	# return if error occured during push_write()
516	return unless %state;	590	return unless %state;
517		591
518	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use	592	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
519		593
520	# status line	594	# status line and headers
521	$state{handle}->push_read (line => $qr_nl, sub {	595	$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]") {	596	for ("$_[1]") {
534	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.
535		598
536	# things seen, not parsed:	599	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc
537	# p3pP="NON CUR OTPi OUR NOR UNI"	600	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
538		601
539	$hdr{lc $1} .= ",$2"	602	# 100 Continue handling
540	while /\G	603	# should not happen as we don't send expect: 100-continue,
541	([^:\000-\037]*):	604	# but we handle it just in case.
542	[\011\040]*	605	# since we send the request body regardless, if we get an error
543	((?: [^\012]+ \| \012[\011\040] )*)	606	# we are out of-sync, which we currently do NOT handle correctly.
544	\012	607	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
545	/gxc;	608	if $2 eq 100;
546		609
		610	push @pseudo,
		611	HTTPVersion => $1,
		612	Status => $2,
		613	Reason => $3,
547	/\G$/	614	;
		615
		616	my $hdr = parse_hdr
548	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", @pseudo }));	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	$url =~ s/\/[^\/]*$//;
549	}	633	}
550		634
551	# remove the "," prefix we added to all headers above
552	substr $_, 0, 1, ""
553	for values %hdr;
554
555	# patch in all pseudo headers
556	%hdr = (%hdr, @pseudo);
557
558	# redirect handling
559	# microsoft and other shitheads don't give a shit for following standards,
560	# try to support some common forms of broken Location headers.
561	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
562	$hdr{location} =~ s/^\.\/+//;
563
564	my $url = "$rscheme://$uhost:$uport";
565
566	unless ($hdr{location} =~ s/^\///) {
567	$url .= $upath;
568	$url =~ s/\/[^\/]*$//;
569	}
570
571	$hdr{location} = "$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;
572	}	654	}
		655	}
573		656
		657	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
574	my $redirect;	658	my $keepalive = pop;
575		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} = $_[2];
		666	}
		667
		668	# set-cookie processing
576	if ($recurse) {	669	if ($arg{cookie_jar}) {
577	my $status = $hdr{Status};	670	for ($hdr{"set-cookie"}) {
		671	# parse NAME=VALUE
		672	my @kv;
578		673
579	if (($status == 301 \|\| $status == 302) && $method ne "POST") {	674	while (
580	# apparently, mozilla et al. just change POST to GET here	675	m{
581	# more research is needed before we do the same	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
582	$redirect = 1;	726	# store it
583	} elsif ($status == 303) {	727	$arg{cookie_jar}{version} = 1;
584	# even http/1.1 is unclear on how to mutate the method	728	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
585	$method = "GET" unless $method eq "HEAD";	729
586	$redirect = 1;	730	redo if /\G\s*,/gc;
587	} elsif ($status == 307 && $method =~ /^(?:GET\|HEAD)$/) {
588	$redirect = 1;
589	}	731	}
590	}	732	}
591		733
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 $hdr{location}) {	734	if ($redirect && exists $hdr{location}) {
647	# we ignore any errors, as it is very common to receive	735	# we ignore any errors, as it is very common to receive
648	# Content-Length != 0 but no actual body	736	# Content-Length != 0 but no actual body
649	# we also access %hdr, as $_[1] might be an erro	737	# we also access %hdr, as $_[1] might be an erro
650	http_request (	738	http_request (
651	$method => $hdr{location},	739	$method => $hdr{location},
652	%arg,	740	%arg,
653	recurse => $recurse - 1,	741	recurse => $recurse - 1,
654	Redirect => \@_,	742	Redirect => [$_[0], \%hdr],
655	$cb);	743	$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 {	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	$finish->("", undef, undef, 1);
		760	} else {
673	# body handling, four different code paths	761	# body handling, many different code paths
674	# for want_body_handle, on_body (2x), normal (2x)	762	# - no body expected
675	# we might read too much here, but it does not matter yet (no pers. connections)	763	# - want_body_handle
		764	# - te chunked
		765	# - 2x length known (with or without on_body)
		766	# - 2x length not known (with or without on_body)
676	if (!$redirect && $arg{want_body_handle}) {	767	if (!$redirect && $arg{want_body_handle}) {
677	$_[0]->on_eof (undef);	768	$_[0]->on_eof (undef);
678	$_[0]->on_error (undef);	769	$_[0]->on_error (undef);
679	$_[0]->on_read (undef);	770	$_[0]->on_read (undef);
680		771
681	$finish->(delete $state{handle}, \%hdr);	772	$finish->(delete $state{handle});
682		773
683	} elsif ($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
684	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });	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 $1;
		786
685	if ($len) {	787	if ($len) {
686	$_[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
687	$_[0]->on_read (sub {	794	$_[0]->push_read (line => sub {
688	$len -= length $_[0]{rbuf};	795	length $_[1]
689		796	and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
690	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	797	$_[0]->push_read (line => $read_chunk);
691	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
692
693	$len > 0	798	});
694	or $finish->("", \%hdr);
695	});	799	});
696	} else {	800	} else {
697	$_[0]->on_eof (sub {	801	$hdr{"content-length"} \|\|= $cl;
698	$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	}
699	});	813	}
700	$_[0]->on_read (sub {	814
701	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	815	$finish->($body, undef, undef, 1);
702	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
703	});	816	});
704	}	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	});
705	} else {	835	} else {
706	$_[0]->on_eof (undef);	836	$_[0]->on_eof (sub {
707		837	$finish->("");
708	if ($len) {	838	});
709	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
710	$_[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 {
711	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)	850	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
712	if $len <= length $_[0]{rbuf};	851	if $len <= length $_[0]{rbuf};
713	});	852	});
714	} else {	853	} else {
715	$_[0]->on_error (sub {	854	$_[0]->on_error (sub {
716	$! == Errno::EPIPE \|\| !$!	855	($! == Errno::EPIPE \|\| !$!)
717	? $finish->(delete $_[0]{rbuf}, \%hdr)	856	? $finish->(delete $_[0]{rbuf})
718	: $finish->(undef, { Status => 599, Reason => $_[2], @pseudo });	857	: $finish->(undef, 599 => $_[2]);
719	});	858	});
720	$_[0]->on_read (sub { });	859	$_[0]->on_read (sub { });
721	}
722	}	860	}
723	}	861	}
724	});	862	}
725	});	863	};
		864
		865	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
726	};	866	};
727		867
728	# now handle proxy-CONNECT method	868	# now handle proxy-CONNECT method
729	if ($proxy && $uscheme eq "https") {	869	if ($proxy && $uscheme eq "https") {
730	# oh dear, we have to wrap it into a connect request	870	# oh dear, we have to wrap it into a connect request
731		871
732	# maybe re-use $uauthority with patched port?	872	# 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");	873	$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 {	874	$state{handle}->push_read (line => $qr_nlnl, sub {
735	$_[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
736	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", @pseudo }));	876	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
737		877
738	if ($2 == 200) {	878	if ($2 == 200) {
739	$rpath = $upath;	879	$rpath = $upath;
740	&$handle_actual_request;	880	&$handle_actual_request;
741	} else {	881	} else {
742	%state = ();	882	%state = ();
743	$cb->(undef, { Status => $2, Reason => $3, @pseudo });	883	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
744	}	884	}
745	});	885	});
746	} else {	886	} else {
747	&$handle_actual_request;	887	&$handle_actual_request;
748	}	888	}
		889	};
749		890
750	}, $arg{on_prepare} \|\| sub { $timeout };	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
751	};	896	};
752		897
753	defined wantarray && AnyEvent::Util::guard { %state = () }	898	defined wantarray && AnyEvent::Util::guard { %state = () }
754	}	899	}
755		900
…		…
790	string of the form C<http://host:port> (optionally C<https:...>), croaks	935	string of the form C<http://host:port> (optionally C<https:...>), croaks
791	otherwise.	936	otherwise.
792		937
793	To clear an already-set proxy, use C<undef>.	938	To clear an already-set proxy, use C<undef>.
794		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.
		950
795	=item $AnyEvent::HTTP::MAX_RECURSE	951	=item $AnyEvent::HTTP::MAX_RECURSE
796		952
797	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>).
798		954
799	=item $AnyEvent::HTTP::USERAGENT	955	=item $AnyEvent::HTTP::USERAGENT
…		…
817	connections. This number of can be useful for load-leveling.	973	connections. This number of can be useful for load-leveling.
818		974
819	=back	975	=back
820		976
821	=cut	977	=cut
		978
		979	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		980	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		981
		982	sub format_date($) {
		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, $_, $y);
		1018	}
		1019	}
		1020
		1021	undef
		1022	}
822		1023
823	sub set_proxy($) {	1024	sub set_proxy($) {
824	if (length $_[0]) {	1025	if (length $_[0]) {
825	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix	1026	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
826	or Carp::croak "$_[0]: invalid proxy URL";	1027	or Carp::croak "$_[0]: invalid proxy URL";
…		…
833	# initialise proxy from environment	1034	# initialise proxy from environment
834	eval {	1035	eval {
835	set_proxy $ENV{http_proxy};	1036	set_proxy $ENV{http_proxy};
836	};	1037	};
837		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	};
		1094
838	=head1 SEE ALSO	1095	=head1 SEE ALSO
839		1096
840	L<AnyEvent>.	1097	L<AnyEvent>.
841		1098
842	=head1 AUTHOR	1099	=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 1.71 by root, Fri Dec 31 20:50:58 2010 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 1.71 by root, Fri Dec 31 20:50:58 2010 UTC