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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.53 by root, Sat Dec 5 15:37:07 2009 UTC vs.
Revision 1.74 by root, Fri Dec 31 22:40:54 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 = '1.44';	52	our $VERSION = '1.5';
54		53
55	our @EXPORT = qw(http_get http_post http_head http_request);	54	our @EXPORT = qw(http_get http_post http_head http_request);
56		55
57	our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";	56	our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";
58	our $MAX_RECURSE = 10;	57	our $MAX_RECURSE = 10;
…		…
92	must be an absolute http or https URL.	91	must be an absolute http or https URL.
93		92
94	When called in void context, nothing is returned. In other contexts,	93	When called in void context, nothing is returned. In other contexts,
95	C<http_request> returns a "cancellation guard" - you have to keep the	94	C<http_request> returns a "cancellation guard" - you have to keep the
96	object at least alive until the callback get called. If the object gets	95	object at least alive until the callback get called. If the object gets
97	destroyed before the callbakc is called, the request will be cancelled.	96	destroyed before the callback is called, the request will be cancelled.
98		97
99	The callback will be called with the response body data as first argument	98	The callback will be called with the response body data as first argument
100	(or C<undef> if an error occured), and a hash-ref with response headers as	99	(or C<undef> if an error occured), and a hash-ref with response headers
101	second argument.	100	(and trailers) as second argument.
102		101
103	All the headers in that hash are lowercased. In addition to the response	102	All the headers in that hash are lowercased. In addition to the response
104	headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason>	103	headers, the "pseudo-headers" (uppercase to avoid clashing with possible
		104	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the
105	contain the three parts of the HTTP Status-Line of the same name. The	105	three parts of the HTTP Status-Line of the same name. If an error occurs
		106	during the body phase of a request, then the original C<Status> and
		107	C<Reason> values from the header are available as C<OrigStatus> and
		108	C<OrigReason>.
		109
106	pseudo-header C<URL> contains the original URL (which can differ from the	110	The pseudo-header C<URL> contains the actual URL (which can differ from
107	requested URL when following redirects).	111	the requested URL when following redirects - for example, you might get
		112	an error that your URL scheme is not supported even though your URL is a
		113	valid http URL because it redirected to an ftp URL, in which case you can
		114	look at the URL pseudo header).
		115
		116	The pseudo-header C<Redirect> only exists when the request was a result
		117	of an internal redirect. In that case it is an array reference with
		118	the C<($data, $headers)> from the redirect response. Note that this
		119	response could in turn be the result of a redirect itself, and C<<
		120	$headers->{Redirect}[1]{Redirect} >> will then contain the original
		121	response, and so on.
108		122
109	If the server sends a header multiple times, then their contents will be	123	If the server sends a header multiple times, then their contents will be
110	joined together with a comma (C<,>), as per the HTTP spec.	124	joined together with a comma (C<,>), as per the HTTP spec.
111		125
112	If an internal error occurs, such as not being able to resolve a hostname,	126	If an internal error occurs, such as not being able to resolve a hostname,
…		…
136	Whether to recurse requests or not, e.g. on redirects, authentication	150	Whether to recurse requests or not, e.g. on redirects, authentication
137	retries and so on, and how often to do so.	151	retries and so on, and how often to do so.
138		152
139	=item headers => hashref	153	=item headers => hashref
140		154
141	The request headers to use. Currently, C<http_request> may provide its	155	The request headers to use. Currently, C<http_request> may provide its own
142	own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers	156	C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers and
143	and will provide defaults for C<User-Agent:> and C<Referer:> (this can be	157	will provide defaults at least for C<TE:>, C<Referer:> and C<User-Agent:>
144	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
145	sent at all).	159	they won't be sent at all).
146		160
147	=item timeout => $seconds	161	=item timeout => $seconds
148		162
149	The time-out to use for various stages - each connect attempt will reset	163	The time-out to use for various stages - each connect attempt will reset
150	the timeout, as will read or write activity, i.e. this is not an overall	164	the timeout, as will read or write activity, i.e. this is not an overall
…		…
160	C<$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
161	HTTPS.	175	HTTPS.
162		176
163	=item body => $string	177	=item body => $string
164		178
165	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
166	this module might offer more options).	180	this module might offer more options).
167		181
168	=item cookie_jar => $hash_ref	182	=item cookie_jar => $hash_ref
169		183
170	Passing this parameter enables (simplified) cookie-processing, loosely	184	Passing this parameter enables (simplified) cookie-processing, loosely
171	based on the original netscape specification.	185	based on the original netscape specification.
172		186
173	The C<$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
174	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
175	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
176	recommended, as expiry times are currently being ignored.	190	recommended, as session-only cookies might survive longer than expected.
177		191
178	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
179	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
180	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
181	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
182	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.
183		201
184	=item tls_ctx => $scheme \| $tls_ctx	202	=item tls_ctx => $scheme \| $tls_ctx
185		203
186	Specifies the AnyEvent::TLS context to be used for https connections. This	204	Specifies the AnyEvent::TLS context to be used for https connections. This
187	parameter follows the same rules as the C<tls_ctx> parameter to	205	parameter follows the same rules as the C<tls_ctx> parameter to
…		…
200	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>	218	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>
201	and behaves exactly the same way (e.g. it has to provide a	219	and behaves exactly the same way (e.g. it has to provide a
202	timeout). See the description for the C<$prepare_cb> argument of	220	timeout). See the description for the C<$prepare_cb> argument of
203	C<AnyEvent::Socket::tcp_connect> for details.	221	C<AnyEvent::Socket::tcp_connect> for details.
204		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
205	=item on_header => $callback->($headers)	235	=item on_header => $callback->($headers)
206		236
207	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
208	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
209	locally-generated errors).	239	locally-generated errors).
…		…
214		244
215	This callback is useful, among other things, to quickly reject unwanted	245	This callback is useful, among other things, to quickly reject unwanted
216	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
217	doing a C<HEAD> request.	247	doing a C<HEAD> request.
218		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
219	Example: cancel the request unless the content-type is "text/html".	253	Example: cancel the request unless the content-type is "text/html".
220		254
221	on_header => sub {	255	on_header => sub {
222	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	256	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
223	},	257	},
…		…
229	string instead of the body data.	263	string instead of the body data.
230		264
231	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),
232	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
233	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.
234		271
235	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
236	(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
237	be extracted, or when the body should be processed incrementally.	274	be extracted, or when the body should be processed incrementally.
238		275
…		…
264	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
265	that doesn't solve your problem in a better way.	302	that doesn't solve your problem in a better way.
266		303
267	=back	304	=back
268		305
269	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.
270		308
271	http_request GET => "http://www.nethype.de/", sub {	309	http_request GET => "http://www.nethype.de/", sub {
272	my ($body, $hdr) = @_;	310	my ($body, $hdr) = @_;
273	print "$body\n";	311	print "$body\n";
274	};	312	};
275		313
276	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
277	timeout of 30 seconds.	315	timeout of 30 seconds.
278		316
279	http_request	317	http_request
280	GET => "https://www.google.com",	318	GET => "https://www.google.com",
281	timeout => 30,	319	timeout => 30,
…		…
284	use Data::Dumper;	322	use Data::Dumper;
285	print Dumper $hdr;	323	print Dumper $hdr;
286	}	324	}
287	;	325	;
288		326
289	Example: make another simple HTTP GET request, but immediately try to	327	Example: do another simple HTTP GET request, but immediately try to
290	cancel it.	328	cancel it.
291		329
292	my $request = http_request GET => "http://www.nethype.de/", sub {	330	my $request = http_request GET => "http://www.nethype.de/", sub {
293	my ($body, $hdr) = @_;	331	my ($body, $hdr) = @_;
294	print "$body\n";	332	print "$body\n";
…		…
326	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	364	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
327		365
328	_slot_schedule $_[0];	366	_slot_schedule $_[0];
329	}	367	}
330		368
331	our $qr_nl = qr{\015?\012};	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
332	our $qr_nlnl = qr{(?<![^\012])\015?\012};	509	our $qr_nlnl = qr{(?<![^\012])\015?\012};
333		510
334	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	511	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
335	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	512	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
336		513
…		…
349	while (my ($k, $v) = each %$hdr) {	526	while (my ($k, $v) = each %$hdr) {
350	$hdr{lc $k} = $v;	527	$hdr{lc $k} = $v;
351	}	528	}
352	}	529	}
353		530
		531	# pseudo headers for all subsequent responses
		532	my @pseudo = (URL => $url);
		533	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
		534
354	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	535	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
355		536
356	return $cb->(undef, { Status => 599, Reason => "Too many redirections", URL => $url })	537	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
357	if $recurse < 0;	538	if $recurse < 0;
358		539
359	my $proxy = $arg{proxy} \|\| $PROXY;	540	my $proxy = $arg{proxy} \|\| $PROXY;
360	my $timeout = $arg{timeout} \|\| $TIMEOUT;	541	my $timeout = $arg{timeout} \|\| $TIMEOUT;
361		542
362	my ($uscheme, $uauthority, $upath, $query, $fragment) =	543	my ($uscheme, $uauthority, $upath, $query, $fragment) =
363	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:\?([^#]))?(?:#(.))?\|;	544	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:(\?[^#]))?(?:#(.))?\|;
364		545
365	$uscheme = lc $uscheme;	546	$uscheme = lc $uscheme;
366		547
367	my $uport = $uscheme eq "http" ? 80	548	my $uport = $uscheme eq "http" ? 80
368	: $uscheme eq "https" ? 443	549	: $uscheme eq "https" ? 443
369	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", URL => $url });	550	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
370		551
371	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	552	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
372	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", URL => $url });	553	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
373		554
374	my $uhost = $1;	555	my $uhost = $1;
375	$uport = $2 if defined $2;	556	$uport = $2 if defined $2;
376		557
377	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"	558	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
378	unless exists $hdr{host};	559	unless exists $hdr{host};
379		560
380	$uhost =~ s/^\[(.*)\]$/$1/;	561	$uhost =~ s/^\[(.*)\]$/$1/;
381	$upath .= "?$query" if length $query;	562	$upath .= $query if length $query;
382		563
383	$upath =~ s%^/?%/%;	564	$upath =~ s%^/?%/%;
384		565
385	# cookie processing	566	# cookie processing
386	if (my $jar = $arg{cookie_jar}) {	567	if (my $jar = $arg{cookie_jar}) {
387	%$jar = () if $jar->{version} != 1;	568	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
388		569
389	my @cookie;
390
391	while (my ($chost, $v) = each %$jar) {
392	if ($chost =~ /^\./) {
393	next unless $chost eq substr $uhost, -length $chost;
394	} elsif ($chost =~ /\./) {
395	next unless $chost eq $uhost;
396	} else {
397	next;
398	}
399
400	while (my ($cpath, $v) = each %$v) {
401	next unless $cpath eq substr $upath, 0, length $cpath;
402
403	while (my ($k, $v) = each %$v) {
404	next if $uscheme ne "https" && exists $v->{secure};
405	my $value = $v->{value};
406	$value =~ s/([\\"])/\\$1/g;
407	push @cookie, "$k=\"$value\"";
408	}
409	}
410	}
411
412	$hdr{cookie} = join "; ", @cookie	570	$hdr{cookie} = join "; ", @$cookies
413	if @cookie;	571	if @$cookies;
414	}	572	}
415		573
416	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	574	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
417		575
418	if ($proxy) {	576	if ($proxy) {
…		…
426	} else {	584	} else {
427	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	585	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
428	}	586	}
429		587
430	# leave out fragment and query string, just a heuristic	588	# leave out fragment and query string, just a heuristic
431	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	589	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
432	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	590	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
433		591
434	$hdr{"content-length"} = length $arg{body}	592	$hdr{"content-length"} = length $arg{body}
435	if length $arg{body} \|\| $method ne "GET";	593	if length $arg{body} \|\| $method ne "GET";
436		594
		595	$hdr{connection} = "close TE"; #1.1
		596	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
		597
437	my %state = (connect_guard => 1);	598	my %state = (connect_guard => 1);
438		599
439	_get_slot $uhost, sub {	600	_get_slot $uhost, sub {
440	$state{slot_guard} = shift;	601	$state{slot_guard} = shift;
441		602
442	return unless $state{connect_guard};	603	return unless $state{connect_guard};
443		604
444	$state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {	605	my $connect_cb = sub {
445	$state{fh} = shift	606	$state{fh} = shift
446	or do {	607	or do {
447	my $err = "$!";	608	my $err = "$!";
448	%state = ();	609	%state = ();
449	return $cb->(undef, { Status => 599, Reason => $err, URL => $url });	610	return $cb->(undef, { @pseudo, Status => 599, Reason => $err });
450	};	611	};
451		612
452	pop; # free memory, save a tree	613	pop; # free memory, save a tree
453		614
454	return unless delete $state{connect_guard};	615	return unless delete $state{connect_guard};
455		616
456	# get handle	617	# get handle
457	$state{handle} = new AnyEvent::Handle	618	$state{handle} = new AnyEvent::Handle
458	fh => $state{fh},	619	fh => $state{fh},
		620	peername => $rhost,
		621	tls_ctx => $arg{tls_ctx},
		622	# these need to be reconfigured on keepalive handles
459	timeout => $timeout,	623	timeout => $timeout,
460	peername => $rhost,	624	on_error => sub {
461	tls_ctx => $arg{tls_ctx};	625	%state = ();
		626	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });
		627	},
		628	on_eof => sub {
		629	%state = ();
		630	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });
		631	},
		632	;
462		633
463	# limit the number of persistent connections	634	# limit the number of persistent connections
464	# keepalive not yet supported	635	# keepalive not yet supported
465	if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	636	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
466	++$KA_COUNT{$_[1]};	637	# ++$KA_COUNT{$_[1]};
467	$state{handle}{ka_count_guard} = AnyEvent::Util::guard {	638	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
468	--$KA_COUNT{$_[1]}	639	# --$KA_COUNT{$_[1]}
469	};	640	# };
470	$hdr{connection} = "keep-alive";	641	# $hdr{connection} = "keep-alive";
471	} else {
472	delete $hdr{connection};
473	}	642	# }
474
475	# (re-)configure handle
476	$state{handle}->on_error (sub {
477	%state = ();
478	$cb->(undef, { Status => 599, Reason => $_[2], URL => $url });
479	});
480	$state{handle}->on_eof (sub {
481	%state = ();
482	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", URL => $url });
483	});
484		643
485	$state{handle}->starttls ("connect") if $rscheme eq "https";	644	$state{handle}->starttls ("connect") if $rscheme eq "https";
486		645
487	# handle actual, non-tunneled, request	646	# handle actual, non-tunneled, request
488	my $handle_actual_request = sub {	647	my $handle_actual_request = sub {
489	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	648	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
490		649
491	# send request	650	# send request
492	$state{handle}->push_write (	651	$state{handle}->push_write (
493	"$method $rpath HTTP/1.0\015\012"	652	"$method $rpath HTTP/1.1\015\012"
494	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	653	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
495	. "\015\012"	654	. "\015\012"
496	. (delete $arg{body})	655	. (delete $arg{body})
497	);	656	);
498		657
		658	# return if error occured during push_write()
		659	return unless %state;
		660
499	%hdr = (); # reduce memory usage, save a kitten	661	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
500		662
501	# status line	663	# status line and headers
502	$state{handle}->push_read (line => $qr_nl, sub {	664	$state{read_response} = sub {
503	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
504	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", URL => $url }));
505
506	my %hdr = ( # response headers
507	HTTPVersion => ",$1",
508	Status => ",$2",
509	Reason => ",$3",
510	URL => ",$url"
511	);
512
513	# headers, could be optimized a bit
514	$state{handle}->unshift_read (line => $qr_nlnl, sub {
515	for ("$_[1]") {	665	for ("$_[1]") {
516	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	666	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
517		667
518	# things seen, not parsed:	668	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc
519	# p3pP="NON CUR OTPi OUR NOR UNI"	669	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
520		670
521	$hdr{lc $1} .= ",$2"	671	# 100 Continue handling
522	while /\G	672	# should not happen as we don't send expect: 100-continue,
523	([^:\000-\037]*):	673	# but we handle it just in case.
524	[\011\040]*	674	# since we send the request body regardless, if we get an error
525	((?: [^\012]+ \| \012[\011\040] )*)	675	# we are out of-sync, which we currently do NOT handle correctly.
526	\012	676	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
527	/gxc;	677	if $2 eq 100;
528		678
		679	push @pseudo,
		680	HTTPVersion => $1,
		681	Status => $2,
		682	Reason => $3,
529	/\G$/	683	;
		684
		685	my $hdr = parse_hdr
530	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", URL => $url }));	686	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		687
		688	%hdr = (%$hdr, @pseudo);
		689	}
		690
		691	# redirect handling
		692	# microsoft and other shitheads don't give a shit for following standards,
		693	# try to support some common forms of broken Location headers.
		694	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		695	$hdr{location} =~ s/^\.\/+//;
		696
		697	my $url = "$rscheme://$uhost:$uport";
		698
		699	unless ($hdr{location} =~ s/^\///) {
		700	$url .= $upath;
		701	$url =~ s/\/[^\/]*$//;
531	}	702	}
532		703
533	substr $_, 0, 1, ""	704	$hdr{location} = "$url/$hdr{location}";
534	for values %hdr;	705	}
535		706
		707	my $redirect;
		708
		709	if ($recurse) {
		710	my $status = $hdr{Status};
		711
		712	# industry standard is to redirect POST as GET for
		713	# 301, 302 and 303, in contrast to http/1.0 and 1.1.
		714	# also, the UA should ask the user for 301 and 307 and POST,
		715	# industry standard seems to be to simply follow.
		716	# we go with the industry standard.
		717	if ($status == 301 or $status == 302 or $status == 303) {
		718	# HTTP/1.1 is unclear on how to mutate the method
		719	$method = "GET" unless $method eq "HEAD";
536	# redirect handling	720	$redirect = 1;
537	# microsoft and other shitheads don't give a shit for following standards,	721	} elsif ($status == 307) {
538	# try to support some common forms of broken Location headers.	722	$redirect = 1;
539	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {	723	}
540	$hdr{location} =~ s/^\.\/+//;	724	}
541		725
542	my $url = "$rscheme://$uhost:$uport";	726	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
		727	my $may_keep_alive = $_[3];
543		728
544	unless ($hdr{location} =~ s/^\///) {	729	$state{handle}->destroy if $state{handle};
		730	%state = ();
		731
		732	if (defined $_[1]) {
		733	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		734	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		735	}
		736
		737	# set-cookie processing
		738	if ($arg{cookie_jar}) {
		739	cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost;
		740	}
		741
		742	if ($redirect && exists $hdr{location}) {
		743	# we ignore any errors, as it is very common to receive
		744	# Content-Length != 0 but no actual body
		745	# we also access %hdr, as $_[1] might be an erro
		746	http_request (
		747	$method => $hdr{location},
		748	%arg,
		749	recurse => $recurse - 1,
		750	Redirect => [$_[0], \%hdr],
		751	$cb);
		752	} else {
		753	$cb->($_[0], \%hdr);
		754	}
		755	};
		756
		757	my $len = $hdr{"content-length"};
		758
		759	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		760	$finish->(undef, 598 => "Request cancelled by on_header");
		761	} elsif (
		762	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		763	or $method eq "HEAD"
		764	or (defined $len && !$len)
		765	) {
		766	# no body
		767	$finish->("", undef, undef, 1);
		768	} else {
		769	# body handling, many different code paths
		770	# - no body expected
		771	# - want_body_handle
		772	# - te chunked
		773	# - 2x length known (with or without on_body)
		774	# - 2x length not known (with or without on_body)
		775	if (!$redirect && $arg{want_body_handle}) {
		776	$_[0]->on_eof (undef);
		777	$_[0]->on_error (undef);
		778	$_[0]->on_read (undef);
		779
		780	$finish->(delete $state{handle});
		781
		782	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		783	my $cl = 0;
		784	my $body = undef;
		785	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		786
		787	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		788
		789	my $read_chunk; $read_chunk = sub {
		790	$_[1] =~ /^([0-9a-fA-F]+)/
		791	or $finish->(undef, 599 => "Garbled chunked transfer encoding");
		792
		793	my $len = hex $1;
		794
		795	if ($len) {
545	$url .= $upath;	796	$cl += $len;
546	$url =~ s/\/[^\/]*$//;	797
		798	$_[0]->push_read (chunk => $len, sub {
		799	$on_body->($_[1], \%hdr)
		800	or return $finish->(undef, 598 => "Request cancelled by on_body");
		801
		802	$_[0]->push_read (line => sub {
		803	length $_[1]
		804	and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
		805	$_[0]->push_read (line => $read_chunk);
		806	});
		807	});
		808	} else {
		809	$hdr{"content-length"} \|\|= $cl;
		810
		811	$_[0]->push_read (line => $qr_nlnl, sub {
		812	if (length $_[1]) {
		813	for ("$_[1]") {
		814	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		815
		816	my $hdr = parse_hdr
		817	or return $finish->(undef, 599 => "Garbled response trailers");
		818
		819	%hdr = (%hdr, %$hdr);
		820	}
		821	}
		822
		823	$finish->($body, undef, undef, 1);
		824	});
		825	}
		826	};
		827
		828	$_[0]->push_read (line => $read_chunk);
		829
		830	} elsif ($arg{on_body}) {
		831	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		832
		833	if ($len) {
		834	$_[0]->on_read (sub {
		835	$len -= length $_[0]{rbuf};
		836
		837	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		838	or return $finish->(undef, 598 => "Request cancelled by on_body");
		839
		840	$len > 0
		841	or $finish->("", undef, undef, 1);
		842	});
		843	} else {
		844	$_[0]->on_eof (sub {
		845	$finish->("");
		846	});
		847	$_[0]->on_read (sub {
		848	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		849	or $finish->(undef, 598 => "Request cancelled by on_body");
		850	});
547	}	851	}
548
549	$hdr{location} = "$url/$hdr{location}";
550	}	852	} else {
		853	$_[0]->on_eof (undef);
551		854
552	my $redirect;
553
554	if ($recurse) {	855	if ($len) {
555	if ($hdr{Status} =~ /^30[12]$/ && $method ne "POST") {	856	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
556	# apparently, mozilla et al. just change POST to GET here	857	$_[0]->on_read (sub {
557	# more research is needed before we do the same	858	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
		859	if $len <= length $_[0]{rbuf};
558	$redirect = 1;	860	});
559	} elsif ($hdr{Status} == 303) {	861	} else {
560	# even http/1.1 is unclear on how to mutate the method	862	$_[0]->on_error (sub {
561	$method = "GET" unless $method eq "HEAD";	863	($! == Errno::EPIPE \|\| !$!)
		864	? $finish->(delete $_[0]{rbuf})
		865	: $finish->(undef, 599 => $_[2]);
562	$redirect = 1;	866	});
563	} elsif ($hdr{Status} == 307 && $method =~ /^(?:GET\|HEAD)$/) {	867	$_[0]->on_read (sub { });
564	$redirect = 1;
565	}	868	}
566	}	869	}
567
568	my $finish = sub {
569	$state{handle}->destroy if $state{handle};
570	%state = ();
571
572	# set-cookie processing
573	if ($arg{cookie_jar}) {
574	for ($_[1]{"set-cookie"}) {
575	# parse NAME=VALUE
576	my @kv;
577
578	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
579	my $name = $1;
580	my $value = $3;
581
582	unless ($value) {
583	$value = $2;
584	$value =~ s/\\(.)/$1/gs;
585	}
586
587	push @kv, $name => $value;
588
589	last unless /\G\s*;/gc;
590	}
591
592	last unless @kv;
593
594	my $name = shift @kv;
595	my %kv = (value => shift @kv, @kv);
596
597	my $cdom;
598	my $cpath = (delete $kv{path}) \|\| "/";
599
600	if (exists $kv{domain}) {
601	$cdom = delete $kv{domain};
602
603	$cdom =~ s/^\.?/./; # make sure it starts with a "."
604
605	next if $cdom =~ /\.$/;
606
607	# this is not rfc-like and not netscape-like. go figure.
608	my $ndots = $cdom =~ y/.//;
609	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
610	} else {
611	$cdom = $uhost;
612	}
613
614	# store it
615	$arg{cookie_jar}{version} = 1;
616	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
617
618	redo if /\G\s*,/gc;
619	}
620	}
621
622	if ($redirect && exists $hdr{location}) {
623	# we ignore any errors, as it is very common to receive
624	# Content-Length != 0 but no actual body
625	# we also access %hdr, as $_[1] might be an erro
626	http_request ($method => $hdr{location}, %arg, recurse => $recurse - 1, $cb);
627	} else {
628	$cb->($_[0], $_[1]);
629	}
630	};
631
632	my $len = $hdr{"content-length"};
633
634	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
635	$finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", URL => $url });
636	} elsif (
637	$hdr{Status} =~ /^(?:1..\|[23]04)$/
638	or $method eq "HEAD"
639	or (defined $len && !$len)
640	) {
641	# no body
642	$finish->("", \%hdr);
643	} else {
644	# body handling, four different code paths
645	# for want_body_handle, on_body (2x), normal (2x)
646	# we might read too much here, but it does not matter yet (no pers. connections)
647	if (!$redirect && $arg{want_body_handle}) {
648	$_[0]->on_eof (undef);
649	$_[0]->on_error (undef);
650	$_[0]->on_read (undef);
651
652	$finish->(delete $state{handle}, \%hdr);
653
654	} elsif ($arg{on_body}) {
655	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
656	if ($len) {
657	$_[0]->on_eof (undef);
658	$_[0]->on_read (sub {
659	$len -= length $_[0]{rbuf};
660
661	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
662	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
663
664	$len > 0
665	or $finish->("", \%hdr);
666	});
667	} else {
668	$_[0]->on_eof (sub {
669	$finish->("", \%hdr);
670	});
671	$_[0]->on_read (sub {
672	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
673	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
674	});
675	}
676	} else {
677	$_[0]->on_eof (undef);
678
679	if ($len) {
680	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
681	$_[0]->on_read (sub {
682	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
683	if $len <= length $_[0]{rbuf};
684	});
685	} else {
686	$_[0]->on_error (sub {
687	$! == Errno::EPIPE \|\| !$!
688	? $finish->(delete $_[0]{rbuf}, \%hdr)
689	: $finish->(undef, { Status => 599, Reason => $_[2], URL => $url });
690	});
691	$_[0]->on_read (sub { });
692	}
693	}
694	}
695	});	870	}
696	});	871	};
		872
		873	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
697	};	874	};
698		875
699	# now handle proxy-CONNECT method	876	# now handle proxy-CONNECT method
700	if ($proxy && $uscheme eq "https") {	877	if ($proxy && $uscheme eq "https") {
701	# oh dear, we have to wrap it into a connect request	878	# oh dear, we have to wrap it into a connect request
702		879
703	# maybe re-use $uauthority with patched port?	880	# maybe re-use $uauthority with patched port?
704	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");	881	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
705	$state{handle}->push_read (line => $qr_nlnl, sub {	882	$state{handle}->push_read (line => $qr_nlnl, sub {
706	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	883	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
707	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", URL => $url }));	884	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
708		885
709	if ($2 == 200) {	886	if ($2 == 200) {
710	$rpath = $upath;	887	$rpath = $upath;
711	&$handle_actual_request;	888	&$handle_actual_request;
712	} else {	889	} else {
713	%state = ();	890	%state = ();
714	$cb->(undef, { Status => $2, Reason => $3, URL => $url });	891	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
715	}	892	}
716	});	893	});
717	} else {	894	} else {
718	&$handle_actual_request;	895	&$handle_actual_request;
719	}	896	}
		897	};
720		898
721	}, $arg{on_prepare} \|\| sub { $timeout };	899	my $tcp_connect = $arg{tcp_connect}
		900	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		901
		902	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		903
722	};	904	};
723		905
724	defined wantarray && AnyEvent::Util::guard { %state = () }	906	defined wantarray && AnyEvent::Util::guard { %state = () }
725	}	907	}
726		908
…		…
740	&http_request	922	&http_request
741	}	923	}
742		924
743	=back	925	=back
744		926
		927	=head2 DNS CACHING
		928
		929	AnyEvent::HTTP uses the AnyEvent::Socket::tcp_connect function for
		930	the actual connection, which in turn uses AnyEvent::DNS to resolve
		931	hostnames. The latter is a simple stub resolver and does no caching
		932	on its own. If you want DNS caching, you currently have to provide
		933	your own default resolver (by storing a suitable resolver object in
		934	C<$AnyEvent::DNS::RESOLVER>).
		935
745	=head2 GLOBAL FUNCTIONS AND VARIABLES	936	=head2 GLOBAL FUNCTIONS AND VARIABLES
746		937
747	=over 4	938	=over 4
748		939
749	=item AnyEvent::HTTP::set_proxy "proxy-url"	940	=item AnyEvent::HTTP::set_proxy "proxy-url"
…		…
752	string of the form C<http://host:port> (optionally C<https:...>), croaks	943	string of the form C<http://host:port> (optionally C<https:...>), croaks
753	otherwise.	944	otherwise.
754		945
755	To clear an already-set proxy, use C<undef>.	946	To clear an already-set proxy, use C<undef>.
756		947
		948	=item $date = AnyEvent::HTTP::format_date $timestamp
		949
		950	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
		951	Date (RFC 2616).
		952
		953	=item $timestamp = AnyEvent::HTTP::parse_date $date
		954
		955	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) and
		956	returns the corresponding POSIX timestamp, or C<undef> if the date cannot
		957	be parsed.
		958
757	=item $AnyEvent::HTTP::MAX_RECURSE	959	=item $AnyEvent::HTTP::MAX_RECURSE
758		960
759	The default value for the C<recurse> request parameter (default: C<10>).	961	The default value for the C<recurse> request parameter (default: C<10>).
760		962
761	=item $AnyEvent::HTTP::USERAGENT	963	=item $AnyEvent::HTTP::USERAGENT
…		…
779	connections. This number of can be useful for load-leveling.	981	connections. This number of can be useful for load-leveling.
780		982
781	=back	983	=back
782		984
783	=cut	985	=cut
		986
		987	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		988	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		989
		990	sub format_date($) {
		991	my ($time) = @_;
		992
		993	# RFC 822/1123 format
		994	my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time;
		995
		996	sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT",
		997	$weekday[$wday], $mday, $month[$mon], $year + 1900,
		998	$H, $M, $S;
		999	}
		1000
		1001	sub parse_date($) {
		1002	my ($date) = @_;
		1003
		1004	my ($d, $m, $y, $H, $M, $S);
		1005
		1006	if ($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$/) {
		1007	# RFC 822/1123, required by RFC 2616 (with " ")
		1008	# cookie dates (with "-")
		1009
		1010	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
		1011
		1012	} elsif ($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$/) {
		1013	# RFC 850
		1014	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
		1015
		1016	} elsif ($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])$/) {
		1017	# ISO C's asctime
		1018	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
		1019	}
		1020	# other formats fail in the loop below
		1021
		1022	for (0..11) {
		1023	if ($m eq $month[$_]) {
		1024	require Time::Local;
		1025	return Time::Local::timegm ($S, $M, $H, $d, $_, $y);
		1026	}
		1027	}
		1028
		1029	undef
		1030	}
784		1031
785	sub set_proxy($) {	1032	sub set_proxy($) {
786	if (length $_[0]) {	1033	if (length $_[0]) {
787	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix	1034	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
788	or Carp::croak "$_[0]: invalid proxy URL";	1035	or Carp::croak "$_[0]: invalid proxy URL";
…		…
795	# initialise proxy from environment	1042	# initialise proxy from environment
796	eval {	1043	eval {
797	set_proxy $ENV{http_proxy};	1044	set_proxy $ENV{http_proxy};
798	};	1045	};
799		1046
		1047	=head2 SOCKS PROXIES
		1048
		1049	Socks proxies are not directly supported by AnyEvent::HTTP. You can
		1050	compile your perl to support socks, or use an external program such as
		1051	F<socksify> (dante) or F<tsocks> to make your program use a socks proxy
		1052	transparently.
		1053
		1054	Alternatively, for AnyEvent::HTTP only, you can use your own
		1055	C<tcp_connect> function that does the proxy handshake - here is an example
		1056	that works with socks4a proxies:
		1057
		1058	use Errno;
		1059	use AnyEvent::Util;
		1060	use AnyEvent::Socket;
		1061	use AnyEvent::Handle;
		1062
		1063	# host, port and username of/for your socks4a proxy
		1064	my $socks_host = "10.0.0.23";
		1065	my $socks_port = 9050;
		1066	my $socks_user = "";
		1067
		1068	sub socks4a_connect {
		1069	my ($host, $port, $connect_cb, $prepare_cb) = @_;
		1070
		1071	my $hdl = new AnyEvent::Handle
		1072	connect => [$socks_host, $socks_port],
		1073	on_prepare => sub { $prepare_cb->($_[0]{fh}) },
		1074	on_error => sub { $connect_cb->() },
		1075	;
		1076
		1077	$hdl->push_write (pack "CCnNZZ", 4, 1, $port, 1, $socks_user, $host);
		1078
		1079	$hdl->push_read (chunk => 8, sub {
		1080	my ($hdl, $chunk) = @_;
		1081	my ($status, $port, $ipn) = unpack "xCna4", $chunk;
		1082
		1083	if ($status == 0x5a) {
		1084	$connect_cb->($hdl->{fh}, (format_address $ipn) . ":$port");
		1085	} else {
		1086	$! = Errno::ENXIO; $connect_cb->();
		1087	}
		1088	});
		1089
		1090	$hdl
		1091	}
		1092
		1093	Use C<socks4a_connect> instead of C<tcp_connect> when doing C<http_request>s,
		1094	possibly after switching off other proxy types:
		1095
		1096	AnyEvent::HTTP::set_proxy undef; # usually you do not want other proxies
		1097
		1098	http_get 'http://www.google.com', tcp_connect => \&socks4a_connect, sub {
		1099	my ($data, $headers) = @_;
		1100	...
		1101	};
		1102
800	=head1 SEE ALSO	1103	=head1 SEE ALSO
801		1104
802	L<AnyEvent>.	1105	L<AnyEvent>.
803		1106
804	=head1 AUTHOR	1107	=head1 AUTHOR

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.53 by root, Sat Dec 5 15:37:07 2009 UTC vs. Revision 1.74 by root, Fri Dec 31 22:40:54 2010 UTC

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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.53 by root, Sat Dec 5 15:37:07 2009 UTC vs.
Revision 1.74 by root, Fri Dec 31 22:40:54 2010 UTC