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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.59 by root, Wed Dec 29 23:59:36 2010 UTC vs.
Revision 1.76 by root, Sat Jan 1 02:20:49 2011 UTC

…		…
47	use AnyEvent::Util ();	47	use AnyEvent::Util ();
48	use AnyEvent::Handle ();	48	use AnyEvent::Handle ();
49		49
50	use base Exporter::;	50	use base Exporter::;
51		51
52	our $VERSION = '1.46';	52	our $VERSION = '1.5';
53		53
54	our @EXPORT = qw(http_get http_post http_head http_request);	54	our @EXPORT = qw(http_get http_post http_head http_request);
55		55
56	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)";
57	our $MAX_RECURSE = 10;	57	our $MAX_RECURSE = 10;
…		…
94	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
95	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
96	destroyed before the callback is called, the request will be cancelled.	96	destroyed before the callback is called, the request will be cancelled.
97		97
98	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
99	(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
100	second argument.	100	(and trailers) as second argument.
101		101
102	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
103	headers, the "pseudo-headers" (uppercase to avoid clashing with possible	103	headers, the "pseudo-headers" (uppercase to avoid clashing with possible
104	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the	104	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the
105	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>.
106		109
107	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
108	the requested URL when following redirects - for example, you might get	111	the requested URL when following redirects - for example, you might get
109	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
110	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
…		…
147	Whether to recurse requests or not, e.g. on redirects, authentication	150	Whether to recurse requests or not, e.g. on redirects, authentication
148	retries and so on, and how often to do so.	151	retries and so on, and how often to do so.
149		152
150	=item headers => hashref	153	=item headers => hashref
151		154
152	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
153	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
154	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:>
155	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
156	sent at all).	159	they won't be sent at all).
157		160
158	=item timeout => $seconds	161	=item timeout => $seconds
159		162
160	The time-out to use for various stages - each connect attempt will reset	163	The time-out to use for various stages - each connect attempt will reset
161	the timeout, as will read or write activity, i.e. this is not an overall	164	the timeout, as will read or write activity, i.e. this is not an overall
…		…
171	C<$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
172	HTTPS.	175	HTTPS.
173		176
174	=item body => $string	177	=item body => $string
175		178
176	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
177	this module might offer more options).	180	this module might offer more options).
178		181
179	=item cookie_jar => $hash_ref	182	=item cookie_jar => $hash_ref
180		183
181	Passing this parameter enables (simplified) cookie-processing, loosely	184	Passing this parameter enables (simplified) cookie-processing, loosely
182	based on the original netscape specification.	185	based on the original netscape specification.
183		186
184	The C<$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
185	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
186	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
187	recommended, as expiry times are currently being ignored.	190	recommended, as session-only cookies might survive longer than expected.
188		191
189	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
190	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
191	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
192	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
193	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.
194		201
195	=item tls_ctx => $scheme \| $tls_ctx	202	=item tls_ctx => $scheme \| $tls_ctx
196		203
197	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
198	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
…		…
216	=item tcp_connect => $callback->($host, $service, $connect_cb, $prepare_cb)	223	=item tcp_connect => $callback->($host, $service, $connect_cb, $prepare_cb)
217		224
218	In even rarer cases you want total control over how AnyEvent::HTTP	225	In even rarer cases you want total control over how AnyEvent::HTTP
219	establishes connections. Normally it uses L<AnyEvent::Socket::tcp_connect>	226	establishes connections. Normally it uses L<AnyEvent::Socket::tcp_connect>
220	to do this, but you can provide your own C<tcp_connect> function -	227	to do this, but you can provide your own C<tcp_connect> function -
221	obviously, it has to follow the same calling conventions.	228	obviously, it has to follow the same calling conventions, except that it
		229	may always return a connection guard object.
222		230
223	There are probably lots of weird uses for this function, starting from	231	There are probably lots of weird uses for this function, starting from
224	tracing the hosts C<http_request> actually tries to connect, to (inexact	232	tracing the hosts C<http_request> actually tries to connect, to (inexact
225	but fast) host => IP address caching or even socks protocol support.	233	but fast) host => IP address caching or even socks protocol support.
226		234
…		…
236		244
237	This callback is useful, among other things, to quickly reject unwanted	245	This callback is useful, among other things, to quickly reject unwanted
238	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
239	doing a C<HEAD> request.	247	doing a C<HEAD> request.
240		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
241	Example: cancel the request unless the content-type is "text/html".	253	Example: cancel the request unless the content-type is "text/html".
242		254
243	on_header => sub {	255	on_header => sub {
244	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	256	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
245	},	257	},
…		…
251	string instead of the body data.	263	string instead of the body data.
252		264
253	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),
254	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
255	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.
256		271
257	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
258	(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
259	be extracted, or when the body should be processed incrementally.	274	be extracted, or when the body should be processed incrementally.
260		275
…		…
286	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
287	that doesn't solve your problem in a better way.	302	that doesn't solve your problem in a better way.
288		303
289	=back	304	=back
290		305
291	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.
292		308
293	http_request GET => "http://www.nethype.de/", sub {	309	http_request GET => "http://www.nethype.de/", sub {
294	my ($body, $hdr) = @_;	310	my ($body, $hdr) = @_;
295	print "$body\n";	311	print "$body\n";
296	};	312	};
297		313
298	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
299	timeout of 30 seconds.	315	timeout of 30 seconds.
300		316
301	http_request	317	http_request
302	GET => "https://www.google.com",	318	GET => "https://www.google.com",
303	timeout => 30,	319	timeout => 30,
…		…
306	use Data::Dumper;	322	use Data::Dumper;
307	print Dumper $hdr;	323	print Dumper $hdr;
308	}	324	}
309	;	325	;
310		326
311	Example: make another simple HTTP GET request, but immediately try to	327	Example: do another simple HTTP GET request, but immediately try to
312	cancel it.	328	cancel it.
313		329
314	my $request = http_request GET => "http://www.nethype.de/", sub {	330	my $request = http_request GET => "http://www.nethype.de/", sub {
315	my ($body, $hdr) = @_;	331	my ($body, $hdr) = @_;
316	print "$body\n";	332	print "$body\n";
…		…
348	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	364	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
349		365
350	_slot_schedule $_[0];	366	_slot_schedule $_[0];
351	}	367	}
352		368
		369	# extract cookies from jar
		370	sub cookie_jar_extract($$$$) {
		371	my ($jar, $uscheme, $uhost, $upath) = @_;
		372
		373	%$jar = () if $jar->{version} != 1;
		374
		375	my @cookies;
		376
		377	while (my ($chost, $paths) = each %$jar) {
		378	next unless ref $paths;
		379
		380	if ($chost =~ /^\./) {
		381	next unless $chost eq substr $uhost, -length $chost;
		382	} elsif ($chost =~ /\./) {
		383	next unless $chost eq $uhost;
		384	} else {
		385	next;
		386	}
		387
		388	while (my ($cpath, $cookies) = each %$paths) {
		389	next unless $cpath eq substr $upath, 0, length $cpath;
		390
		391	while (my ($cookie, $kv) = each %$cookies) {
		392	next if $uscheme ne "https" && exists $kv->{secure};
		393
		394	if (exists $kv->{expires}) {
		395	if (AE::now > parse_date ($kv->{expires})) {
		396	delete $cookies->{$cookie};
		397	next;
		398	}
		399	}
		400
		401	my $value = $kv->{value};
		402
		403	if ($value =~ /[=;,[:space:]]/) {
		404	$value =~ s/([\\"])/\\$1/g;
		405	$value = "\"$value\"";
		406	}
		407
		408	push @cookies, "$cookie=$value";
		409	}
		410	}
		411	}
		412
		413	\@cookies
		414	}
		415
		416	# parse set_cookie header into jar
		417	sub cookie_jar_set_cookie($$$) {
		418	my ($jar, $set_cookie, $uhost) = @_;
		419
		420	for ($set_cookie) {
		421	# parse NAME=VALUE
		422	my @kv;
		423
		424	while (
		425	m{
		426	\G\s*
		427	(?:
		428	expires \s=\s ([A-Z][a-z][a-z],\ [^,;]+)
		429	\| ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )
		430	)
		431	}gcxsi
		432	) {
		433	my $name = $2;
		434	my $value = $4;
		435
		436	unless (defined $name) {
		437	# expires
		438	$name = "expires";
		439	$value = $1;
		440	} elsif (!defined $value) {
		441	# quoted
		442	$value = $3;
		443	$value =~ s/\\(.)/$1/gs;
		444	}
		445
		446	push @kv, lc $name, $value;
		447
		448	last unless /\G\s*;/gc;
		449	}
		450
		451	last unless @kv;
		452
		453	my $name = shift @kv;
		454	my %kv = (value => shift @kv, @kv);
		455
		456	$kv{expires} \|\|= format_date (AE::now + $kv{"max-age"})
		457	if exists $kv{"max-age"};
		458
		459	my $cdom;
		460	my $cpath = (delete $kv{path}) \|\| "/";
		461
		462	if (exists $kv{domain}) {
		463	$cdom = delete $kv{domain};
		464
		465	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		466
		467	next if $cdom =~ /\.$/;
		468
		469	# this is not rfc-like and not netscape-like. go figure.
		470	my $ndots = $cdom =~ y/.//;
		471	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		472	} else {
		473	$cdom = $uhost;
		474	}
		475
		476	# store it
		477	$jar->{version} = 1;
		478	$jar->{$cdom}{$cpath}{$name} = \%kv;
		479
		480	redo if /\G\s*,/gc;
		481	}
		482	}
		483
		484	# continue to parse $_ for headers and place them into the arg
		485	sub parse_hdr() {
		486	my %hdr;
		487
		488	# things seen, not parsed:
		489	# p3pP="NON CUR OTPi OUR NOR UNI"
		490
		491	$hdr{lc $1} .= ",$2"
		492	while /\G
		493	([^:\000-\037]*):
		494	[\011\040]*
		495	((?: [^\012]+ \| \012[\011\040] )*)
		496	\012
		497	/gxc;
		498
		499	/\G$/
		500	or return;
		501
		502	# remove the "," prefix we added to all headers above
		503	substr $_, 0, 1, ""
		504	for values %hdr;
		505
		506	\%hdr
		507	}
		508
353	our $qr_nlnl = qr{(?<![^\012])\015?\012};	509	our $qr_nlnl = qr{(?<![^\012])\015?\012};
354		510
355	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	511	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
356	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	512	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
357		513
…		…
376	my @pseudo = (URL => $url);	532	my @pseudo = (URL => $url);
377	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};	533	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
378		534
379	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	535	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
380		536
381	return $cb->(undef, { Status => 599, Reason => "Too many redirections", @pseudo })	537	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
382	if $recurse < 0;	538	if $recurse < 0;
383		539
384	my $proxy = $arg{proxy} \|\| $PROXY;	540	my $proxy = $arg{proxy} \|\| $PROXY;
385	my $timeout = $arg{timeout} \|\| $TIMEOUT;	541	my $timeout = $arg{timeout} \|\| $TIMEOUT;
386		542
…		…
389		545
390	$uscheme = lc $uscheme;	546	$uscheme = lc $uscheme;
391		547
392	my $uport = $uscheme eq "http" ? 80	548	my $uport = $uscheme eq "http" ? 80
393	: $uscheme eq "https" ? 443	549	: $uscheme eq "https" ? 443
394	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", @pseudo });	550	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
395		551
396	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	552	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
397	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", @pseudo });	553	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
398		554
399	my $uhost = $1;	555	my $uhost = $1;
400	$uport = $2 if defined $2;	556	$uport = $2 if defined $2;
401		557
402	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"	558	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
…		…
407		563
408	$upath =~ s%^/?%/%;	564	$upath =~ s%^/?%/%;
409		565
410	# cookie processing	566	# cookie processing
411	if (my $jar = $arg{cookie_jar}) {	567	if (my $jar = $arg{cookie_jar}) {
412	%$jar = () if $jar->{version} != 1;	568	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
413		569
414	my @cookie;
415
416	while (my ($chost, $v) = each %$jar) {
417	if ($chost =~ /^\./) {
418	next unless $chost eq substr $uhost, -length $chost;
419	} elsif ($chost =~ /\./) {
420	next unless $chost eq $uhost;
421	} else {
422	next;
423	}
424
425	while (my ($cpath, $v) = each %$v) {
426	next unless $cpath eq substr $upath, 0, length $cpath;
427
428	while (my ($k, $v) = each %$v) {
429	next if $uscheme ne "https" && exists $v->{secure};
430	my $value = $v->{value};
431	$value =~ s/([\\"])/\\$1/g;
432	push @cookie, "$k=\"$value\"";
433	}
434	}
435	}
436
437	$hdr{cookie} = join "; ", @cookie	570	$hdr{cookie} = join "; ", @$cookies
438	if @cookie;	571	if @$cookies;
439	}	572	}
440		573
441	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	574	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
442		575
443	if ($proxy) {	576	if ($proxy) {
…		…
451	} else {	584	} else {
452	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	585	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
453	}	586	}
454		587
455	# leave out fragment and query string, just a heuristic	588	# leave out fragment and query string, just a heuristic
456	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	589	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
457	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	590	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
458		591
459	$hdr{"content-length"} = length $arg{body}	592	$hdr{"content-length"} = length $arg{body}
460	if length $arg{body} \|\| $method ne "GET";	593	if length $arg{body} \|\| $method ne "GET";
461		594
		595	$hdr{connection} = "close TE"; #1.1
		596	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
		597
462	my %state = (connect_guard => 1);	598	my %state = (connect_guard => 1);
463		599
464	_get_slot $uhost, sub {	600	_get_slot $uhost, sub {
465	$state{slot_guard} = shift;	601	$state{slot_guard} = shift;
466		602
467	return unless $state{connect_guard};	603	return unless $state{connect_guard};
468		604
469	my $tcp_connect = $arg{tcp_connect}	605	my $connect_cb = sub {
470	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
471
472	$state{connect_guard} = $tcp_connect->(
473	$rhost,
474	$rport,
475	sub {
476	$state{fh} = shift	606	$state{fh} = shift
477	or do {	607	or do {
478	my $err = "$!";	608	my $err = "$!";
479	%state = ();	609	%state = ();
480	return $cb->(undef, { Status => 599, Reason => $err, @pseudo });	610	return $cb->(undef, { @pseudo, Status => 599, Reason => $err });
481	};	611	};
482		612
483	pop; # free memory, save a tree
484
485	return unless delete $state{connect_guard};	613	return unless delete $state{connect_guard};
486		614
487	# get handle	615	# get handle
488	$state{handle} = new AnyEvent::Handle	616	$state{handle} = new AnyEvent::Handle
489	fh => $state{fh},	617	fh => $state{fh},
490	peername => $rhost,	618	peername => $rhost,
491	tls_ctx => $arg{tls_ctx},	619	tls_ctx => $arg{tls_ctx},
492	# these need to be reconfigured on keepalive handles	620	# these need to be reconfigured on keepalive handles
493	timeout => $timeout,	621	timeout => $timeout,
494	on_error => sub {	622	on_error => sub {
495	%state = ();	623	%state = ();
496	$cb->(undef, { Status => 599, Reason => $_[2], @pseudo });	624	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });
497	},	625	},
498	on_eof => sub {	626	on_eof => sub {
499	%state = ();	627	%state = ();
500	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", @pseudo });	628	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });
501	},	629	},
502	;	630	;
503		631
504	# limit the number of persistent connections	632	# limit the number of persistent connections
505	# keepalive not yet supported	633	# keepalive not yet supported
506	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	634	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
507	# ++$KA_COUNT{$_[1]};	635	# ++$KA_COUNT{$_[1]};
508	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {	636	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
509	# --$KA_COUNT{$_[1]}	637	# --$KA_COUNT{$_[1]}
510	# };	638	# };
511	# $hdr{connection} = "keep-alive";	639	# $hdr{connection} = "keep-alive";
512	# } else {
513	delete $hdr{connection};
514	# }	640	# }
515		641
516	$state{handle}->starttls ("connect") if $rscheme eq "https";	642	$state{handle}->starttls ("connect") if $rscheme eq "https";
517		643
518	# handle actual, non-tunneled, request	644	# handle actual, non-tunneled, request
519	my $handle_actual_request = sub {	645	my $handle_actual_request = sub {
520	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	646	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
521		647
522	# send request	648	# send request
523	$state{handle}->push_write (	649	$state{handle}->push_write (
524	"$method $rpath HTTP/1.0\015\012"	650	"$method $rpath HTTP/1.1\015\012"
525	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	651	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
526	. "\015\012"	652	. "\015\012"
527	. (delete $arg{body})	653	. (delete $arg{body})
528	);	654	);
529		655
530	# return if error occured during push_write()	656	# return if error occured during push_write()
531	return unless %state;	657	return unless %state;
532		658
533	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use	659	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
534		660
535	# status line and headers	661	# status line and headers
536	$state{handle}->push_read (line => $qr_nlnl, sub {	662	$state{read_response} = sub {
537	for ("$_[1]") {	663	for ("$_[1]") {
538	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	664	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
539		665
540	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )? \015?\012/igxc	666	/^HTTP\/0([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]) )? \012/gxci
541	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response", @pseudo }));	667	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
542		668
		669	# 100 Continue handling
		670	# should not happen as we don't send expect: 100-continue,
		671	# but we handle it just in case.
		672	# since we send the request body regardless, if we get an error
		673	# we are out of-sync, which we currently do NOT handle correctly.
		674	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
		675	if $2 eq 100;
		676
543	push @pseudo,	677	push @pseudo,
544	HTTPVersion => $1,	678	HTTPVersion => $1,
545	Status => $2,	679	Status => $2,
546	Reason => $3,	680	Reason => $3,
547	;	681	;
548		682
549	# things seen, not parsed:	683	my $hdr = parse_hdr
550	# p3pP="NON CUR OTPi OUR NOR UNI"
551
552	$hdr{lc $1} .= ",$2"
553	while /\G
554	([^:\000-\037]*):
555	[\011\040]*
556	((?: [^\012]+ \| \012[\011\040] )*)
557	\012
558	/gxc;
559
560	/\G$/
561	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", @pseudo }));	684	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		685
		686	%hdr = (%$hdr, @pseudo);
		687	}
		688
		689	# redirect handling
		690	# microsoft and other shitheads don't give a shit for following standards,
		691	# try to support some common forms of broken Location headers.
		692	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		693	$hdr{location} =~ s/^\.\/+//;
		694
		695	my $url = "$rscheme://$uhost:$uport";
		696
		697	unless ($hdr{location} =~ s/^\///) {
		698	$url .= $upath;
		699	$url =~ s/\/[^\/]*$//;
562	}	700	}
563		701
564	# remove the "," prefix we added to all headers above	702	$hdr{location} = "$url/$hdr{location}";
565	substr $_, 0, 1, ""	703	}
566	for values %hdr;
567		704
568	# patch in all pseudo headers	705	my $redirect;
569	%hdr = (%hdr, @pseudo);
570		706
		707	if ($recurse) {
		708	my $status = $hdr{Status};
		709
		710	# industry standard is to redirect POST as GET for
		711	# 301, 302 and 303, in contrast to HTTP/1.0 and 1.1.
		712	# also, the UA should ask the user for 301 and 307 and POST,
		713	# industry standard seems to be to simply follow.
		714	# we go with the industry standard.
		715	if ($status == 301 or $status == 302 or $status == 303) {
		716	# HTTP/1.1 is unclear on how to mutate the method
		717	$method = "GET" unless $method eq "HEAD";
571	# redirect handling	718	$redirect = 1;
572	# microsoft and other shitheads don't give a shit for following standards,	719	} elsif ($status == 307) {
573	# try to support some common forms of broken Location headers.	720	$redirect = 1;
574	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {	721	}
575	$hdr{location} =~ s/^\.\/+//;	722	}
576		723
577	my $url = "$rscheme://$uhost:$uport";	724	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
		725	my $may_keep_alive = $_[3];
578		726
579	unless ($hdr{location} =~ s/^\///) {	727	$state{handle}->destroy if $state{handle};
		728	%state = ();
		729
		730	if (defined $_[1]) {
		731	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		732	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		733	}
		734
		735	# set-cookie processing
		736	if ($arg{cookie_jar}) {
		737	cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost;
		738	}
		739
		740	if ($redirect && exists $hdr{location}) {
		741	# we ignore any errors, as it is very common to receive
		742	# Content-Length != 0 but no actual body
		743	# we also access %hdr, as $_[1] might be an erro
		744	http_request (
		745	$method => $hdr{location},
		746	%arg,
		747	recurse => $recurse - 1,
		748	Redirect => [$_[0], \%hdr],
		749	$cb);
		750	} else {
		751	$cb->($_[0], \%hdr);
		752	}
		753	};
		754
		755	my $len = $hdr{"content-length"};
		756
		757	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		758	$finish->(undef, 598 => "Request cancelled by on_header");
		759	} elsif (
		760	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		761	or $method eq "HEAD"
		762	or (defined $len && !$len)
		763	) {
		764	# no body
		765	$finish->("", undef, undef, 1);
		766	} else {
		767	# body handling, many different code paths
		768	# - no body expected
		769	# - want_body_handle
		770	# - te chunked
		771	# - 2x length known (with or without on_body)
		772	# - 2x length not known (with or without on_body)
		773	if (!$redirect && $arg{want_body_handle}) {
		774	$_[0]->on_eof (undef);
		775	$_[0]->on_error (undef);
		776	$_[0]->on_read (undef);
		777
		778	$finish->(delete $state{handle});
		779
		780	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		781	my $cl = 0;
		782	my $body = undef;
		783	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		784
		785	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		786
		787	my $read_chunk; $read_chunk = sub {
		788	$_[1] =~ /^([0-9a-fA-F]+)/
		789	or $finish->(undef, 599 => "Garbled chunked transfer encoding");
		790
		791	my $len = hex $1;
		792
		793	if ($len) {
580	$url .= $upath;	794	$cl += $len;
581	$url =~ s/\/[^\/]*$//;	795
		796	$_[0]->push_read (chunk => $len, sub {
		797	$on_body->($_[1], \%hdr)
		798	or return $finish->(undef, 598 => "Request cancelled by on_body");
		799
		800	$_[0]->push_read (line => sub {
		801	length $_[1]
		802	and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
		803	$_[0]->push_read (line => $read_chunk);
		804	});
		805	});
		806	} else {
		807	$hdr{"content-length"} \|\|= $cl;
		808
		809	$_[0]->push_read (line => $qr_nlnl, sub {
		810	if (length $_[1]) {
		811	for ("$_[1]") {
		812	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		813
		814	my $hdr = parse_hdr
		815	or return $finish->(undef, 599 => "Garbled response trailers");
		816
		817	%hdr = (%hdr, %$hdr);
		818	}
		819	}
		820
		821	$finish->($body, undef, undef, 1);
		822	});
		823	}
		824	};
		825
		826	$_[0]->push_read (line => $read_chunk);
		827
		828	} elsif ($arg{on_body}) {
		829	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		830
		831	if ($len) {
		832	$_[0]->on_read (sub {
		833	$len -= length $_[0]{rbuf};
		834
		835	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		836	or return $finish->(undef, 598 => "Request cancelled by on_body");
		837
		838	$len > 0
		839	or $finish->("", undef, undef, 1);
		840	});
		841	} else {
		842	$_[0]->on_eof (sub {
		843	$finish->("");
		844	});
		845	$_[0]->on_read (sub {
		846	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		847	or $finish->(undef, 598 => "Request cancelled by on_body");
		848	});
582	}	849	}
583
584	$hdr{location} = "$url/$hdr{location}";
585	}	850	} else {
		851	$_[0]->on_eof (undef);
586		852
587	my $redirect;
588
589	if ($recurse) {	853	if ($len) {
590	my $status = $hdr{Status};	854	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
591		855	$_[0]->on_read (sub {
592	# industry standard is to redirect POST as GET for	856	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
593	# 301, 302 and 303, in contrast to http/1.0 and 1.1.	857	if $len <= length $_[0]{rbuf};
594	# also, the UA should ask the user for 301 and 307 and POST,
595	# industry standard seems to be to simply follow.
596	# we go with the industry standard.
597	if ($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	$redirect = 1;	858	});
601	} elsif ($status == 307) {	859	} else {
		860	$_[0]->on_error (sub {
		861	($! == Errno::EPIPE \|\| !$!)
		862	? $finish->(delete $_[0]{rbuf})
		863	: $finish->(undef, 599 => $_[2]);
602	$redirect = 1;	864	});
		865	$_[0]->on_read (sub { });
603	}	866	}
604	}	867	}
605
606	my $finish = sub {
607	$state{handle}->destroy if $state{handle};
608	%state = ();
609
610	# set-cookie processing
611	if ($arg{cookie_jar}) {
612	for ($_[1]{"set-cookie"}) {
613	# parse NAME=VALUE
614	my @kv;
615
616	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
617	my $name = $1;
618	my $value = $3;
619
620	unless ($value) {
621	$value = $2;
622	$value =~ s/\\(.)/$1/gs;
623	}
624
625	push @kv, $name => $value;
626
627	last unless /\G\s*;/gc;
628	}
629
630	last unless @kv;
631
632	my $name = shift @kv;
633	my %kv = (value => shift @kv, @kv);
634
635	my $cdom;
636	my $cpath = (delete $kv{path}) \|\| "/";
637
638	if (exists $kv{domain}) {
639	$cdom = delete $kv{domain};
640
641	$cdom =~ s/^\.?/./; # make sure it starts with a "."
642
643	next if $cdom =~ /\.$/;
644
645	# this is not rfc-like and not netscape-like. go figure.
646	my $ndots = $cdom =~ y/.//;
647	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
648	} else {
649	$cdom = $uhost;
650	}
651
652	# store it
653	$arg{cookie_jar}{version} = 1;
654	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
655
656	redo if /\G\s*,/gc;
657	}
658	}
659
660	if ($redirect && exists $hdr{location}) {
661	# we ignore any errors, as it is very common to receive
662	# Content-Length != 0 but no actual body
663	# we also access %hdr, as $_[1] might be an erro
664	http_request (
665	$method => $hdr{location},
666	%arg,
667	recurse => $recurse - 1,
668	Redirect => \@_,
669	$cb);
670	} else {
671	$cb->($_[0], $_[1]);
672	}
673	};
674
675	my $len = $hdr{"content-length"};
676
677	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
678	$finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", @pseudo });
679	} elsif (
680	$hdr{Status} =~ /^(?:1..\|[23]04)$/
681	or $method eq "HEAD"
682	or (defined $len && !$len)
683	) {
684	# no body
685	$finish->("", \%hdr);
686	} else {
687	# body handling, four different code paths
688	# for want_body_handle, on_body (2x), normal (2x)
689	# we might read too much here, but it does not matter yet (no pers. connections)
690	if (!$redirect && $arg{want_body_handle}) {
691	$_[0]->on_eof (undef);
692	$_[0]->on_error (undef);
693	$_[0]->on_read (undef);
694
695	$finish->(delete $state{handle}, \%hdr);
696
697	} elsif ($arg{on_body}) {
698	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
699	if ($len) {
700	$_[0]->on_eof (undef);
701	$_[0]->on_read (sub {
702	$len -= length $_[0]{rbuf};
703
704	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
705	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
706
707	$len > 0
708	or $finish->("", \%hdr);
709	});
710	} else {
711	$_[0]->on_eof (sub {
712	$finish->("", \%hdr);
713	});
714	$_[0]->on_read (sub {
715	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
716	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
717	});
718	}
719	} else {
720	$_[0]->on_eof (undef);
721
722	if ($len) {
723	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
724	$_[0]->on_read (sub {
725	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
726	if $len <= length $_[0]{rbuf};
727	});
728	} else {
729	$_[0]->on_error (sub {
730	($! == Errno::EPIPE \|\| !$!)
731	? $finish->(delete $_[0]{rbuf}, \%hdr)
732	: $finish->(undef, { Status => 599, Reason => $_[2], @pseudo });
733	});
734	$_[0]->on_read (sub { });
735	}
736	}
737	}
738	});	868	}
739	};	869	};
740		870
		871	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
		872	};
		873
741	# now handle proxy-CONNECT method	874	# now handle proxy-CONNECT method
742	if ($proxy && $uscheme eq "https") {	875	if ($proxy && $uscheme eq "https") {
743	# oh dear, we have to wrap it into a connect request	876	# oh dear, we have to wrap it into a connect request
744		877
745	# maybe re-use $uauthority with patched port?	878	# maybe re-use $uauthority with patched port?
746	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");	879	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
747	$state{handle}->push_read (line => $qr_nlnl, sub {	880	$state{handle}->push_read (line => $qr_nlnl, sub {
748	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	881	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
749	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", @pseudo }));	882	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
750		883
751	if ($2 == 200) {	884	if ($2 == 200) {
752	$rpath = $upath;	885	$rpath = $upath;
753	&$handle_actual_request;	886	&$handle_actual_request;
754	} else {	887	} else {
755	%state = ();	888	%state = ();
756	$cb->(undef, { Status => $2, Reason => $3, @pseudo });	889	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
757	}
758	});	890	}
		891	});
759	} else {	892	} else {
760	&$handle_actual_request;	893	&$handle_actual_request;
761	}
762
763	},	894	}
764	$arg{on_prepare} \|\| sub { $timeout }
765	);	895	};
		896
		897	my $tcp_connect = $arg{tcp_connect}
		898	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		899
		900	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		901
766	};	902	};
767		903
768	defined wantarray && AnyEvent::Util::guard { %state = () }	904	defined wantarray && AnyEvent::Util::guard { %state = () }
769	}	905	}
770		906
…		…
805	string of the form C<http://host:port> (optionally C<https:...>), croaks	941	string of the form C<http://host:port> (optionally C<https:...>), croaks
806	otherwise.	942	otherwise.
807		943
808	To clear an already-set proxy, use C<undef>.	944	To clear an already-set proxy, use C<undef>.
809		945
		946	=item $date = AnyEvent::HTTP::format_date $timestamp
		947
		948	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
		949	Date (RFC 2616).
		950
		951	=item $timestamp = AnyEvent::HTTP::parse_date $date
		952
		953	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) and
		954	returns the corresponding POSIX timestamp, or C<undef> if the date cannot
		955	be parsed.
		956
810	=item $AnyEvent::HTTP::MAX_RECURSE	957	=item $AnyEvent::HTTP::MAX_RECURSE
811		958
812	The default value for the C<recurse> request parameter (default: C<10>).	959	The default value for the C<recurse> request parameter (default: C<10>).
813		960
814	=item $AnyEvent::HTTP::USERAGENT	961	=item $AnyEvent::HTTP::USERAGENT
…		…
832	connections. This number of can be useful for load-leveling.	979	connections. This number of can be useful for load-leveling.
833		980
834	=back	981	=back
835		982
836	=cut	983	=cut
		984
		985	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		986	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		987
		988	sub format_date($) {
		989	my ($time) = @_;
		990
		991	# RFC 822/1123 format
		992	my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time;
		993
		994	sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT",
		995	$weekday[$wday], $mday, $month[$mon], $year + 1900,
		996	$H, $M, $S;
		997	}
		998
		999	sub parse_date($) {
		1000	my ($date) = @_;
		1001
		1002	my ($d, $m, $y, $H, $M, $S);
		1003
		1004	if ($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$/) {
		1005	# RFC 822/1123, required by RFC 2616 (with " ")
		1006	# cookie dates (with "-")
		1007
		1008	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
		1009
		1010	} elsif ($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$/) {
		1011	# RFC 850
		1012	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
		1013
		1014	} elsif ($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])$/) {
		1015	# ISO C's asctime
		1016	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
		1017	}
		1018	# other formats fail in the loop below
		1019
		1020	for (0..11) {
		1021	if ($m eq $month[$_]) {
		1022	require Time::Local;
		1023	return Time::Local::timegm ($S, $M, $H, $d, $_, $y);
		1024	}
		1025	}
		1026
		1027	undef
		1028	}
837		1029
838	sub set_proxy($) {	1030	sub set_proxy($) {
839	if (length $_[0]) {	1031	if (length $_[0]) {
840	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix	1032	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
841	or Carp::croak "$_[0]: invalid proxy URL";	1033	or Carp::croak "$_[0]: invalid proxy URL";
…		…
848	# initialise proxy from environment	1040	# initialise proxy from environment
849	eval {	1041	eval {
850	set_proxy $ENV{http_proxy};	1042	set_proxy $ENV{http_proxy};
851	};	1043	};
852		1044
		1045	=head2 SOCKS PROXIES
		1046
		1047	Socks proxies are not directly supported by AnyEvent::HTTP. You can
		1048	compile your perl to support socks, or use an external program such as
		1049	F<socksify> (dante) or F<tsocks> to make your program use a socks proxy
		1050	transparently.
		1051
		1052	Alternatively, for AnyEvent::HTTP only, you can use your own
		1053	C<tcp_connect> function that does the proxy handshake - here is an example
		1054	that works with socks4a proxies:
		1055
		1056	use Errno;
		1057	use AnyEvent::Util;
		1058	use AnyEvent::Socket;
		1059	use AnyEvent::Handle;
		1060
		1061	# host, port and username of/for your socks4a proxy
		1062	my $socks_host = "10.0.0.23";
		1063	my $socks_port = 9050;
		1064	my $socks_user = "";
		1065
		1066	sub socks4a_connect {
		1067	my ($host, $port, $connect_cb, $prepare_cb) = @_;
		1068
		1069	my $hdl = new AnyEvent::Handle
		1070	connect => [$socks_host, $socks_port],
		1071	on_prepare => sub { $prepare_cb->($_[0]{fh}) },
		1072	on_error => sub { $connect_cb->() },
		1073	;
		1074
		1075	$hdl->push_write (pack "CCnNZZ", 4, 1, $port, 1, $socks_user, $host);
		1076
		1077	$hdl->push_read (chunk => 8, sub {
		1078	my ($hdl, $chunk) = @_;
		1079	my ($status, $port, $ipn) = unpack "xCna4", $chunk;
		1080
		1081	if ($status == 0x5a) {
		1082	$connect_cb->($hdl->{fh}, (format_address $ipn) . ":$port");
		1083	} else {
		1084	$! = Errno::ENXIO; $connect_cb->();
		1085	}
		1086	});
		1087
		1088	$hdl
		1089	}
		1090
		1091	Use C<socks4a_connect> instead of C<tcp_connect> when doing C<http_request>s,
		1092	possibly after switching off other proxy types:
		1093
		1094	AnyEvent::HTTP::set_proxy undef; # usually you do not want other proxies
		1095
		1096	http_get 'http://www.google.com', tcp_connect => \&socks4a_connect, sub {
		1097	my ($data, $headers) = @_;
		1098	...
		1099	};
		1100
853	=head1 SEE ALSO	1101	=head1 SEE ALSO
854		1102
855	L<AnyEvent>.	1103	L<AnyEvent>.
856		1104
857	=head1 AUTHOR	1105	=head1 AUTHOR

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.59 by root, Wed Dec 29 23:59:36 2010 UTC vs. Revision 1.76 by root, Sat Jan 1 02:20:49 2011 UTC

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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.59 by root, Wed Dec 29 23:59:36 2010 UTC vs.
Revision 1.76 by root, Sat Jan 1 02:20:49 2011 UTC