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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.54 by root, Wed Jun 16 18:09:52 2010 UTC vs.
Revision 1.76 by root, Sat Jan 1 02:20:49 2011 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
452	pop; # free memory, save a tree
453		612
454	return unless delete $state{connect_guard};	613	return unless delete $state{connect_guard};
455		614
456	# get handle	615	# get handle
457	$state{handle} = new AnyEvent::Handle	616	$state{handle} = new AnyEvent::Handle
458	fh => $state{fh},	617	fh => $state{fh},
		618	peername => $rhost,
		619	tls_ctx => $arg{tls_ctx},
		620	# these need to be reconfigured on keepalive handles
459	timeout => $timeout,	621	timeout => $timeout,
460	peername => $rhost,	622	on_error => sub {
461	tls_ctx => $arg{tls_ctx};	623	%state = ();
		624	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });
		625	},
		626	on_eof => sub {
		627	%state = ();
		628	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });
		629	},
		630	;
462		631
463	# limit the number of persistent connections	632	# limit the number of persistent connections
464	# keepalive not yet supported	633	# keepalive not yet supported
465	if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	634	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
466	++$KA_COUNT{$_[1]};	635	# ++$KA_COUNT{$_[1]};
467	$state{handle}{ka_count_guard} = AnyEvent::Util::guard {	636	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
468	--$KA_COUNT{$_[1]}	637	# --$KA_COUNT{$_[1]}
469	};	638	# };
470	$hdr{connection} = "keep-alive";	639	# $hdr{connection} = "keep-alive";
471	} else {
472	delete $hdr{connection};
473	}	640	# }
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		641
485	$state{handle}->starttls ("connect") if $rscheme eq "https";	642	$state{handle}->starttls ("connect") if $rscheme eq "https";
486		643
487	# handle actual, non-tunneled, request	644	# handle actual, non-tunneled, request
488	my $handle_actual_request = sub {	645	my $handle_actual_request = sub {
489	$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};
490		647
491	# send request	648	# send request
492	$state{handle}->push_write (	649	$state{handle}->push_write (
493	"$method $rpath HTTP/1.0\015\012"	650	"$method $rpath HTTP/1.1\015\012"
494	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	651	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
495	. "\015\012"	652	. "\015\012"
496	. (delete $arg{body})	653	. (delete $arg{body})
497	);	654	);
498		655
499	# return if error occured during push_write()	656	# return if error occured during push_write()
500	return unless %state;	657	return unless %state;
501		658
502	%hdr = (); # reduce memory usage, save a kitten	659	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
503		660
504	# status line	661	# status line and headers
505	$state{handle}->push_read (line => $qr_nl, sub {	662	$state{read_response} = sub {
506	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
507	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", URL => $url }));
508
509	my %hdr = ( # response headers
510	HTTPVersion => ",$1",
511	Status => ",$2",
512	Reason => ",$3",
513	URL => ",$url"
514	);
515
516	# headers, could be optimized a bit
517	$state{handle}->unshift_read (line => $qr_nlnl, sub {
518	for ("$_[1]") {	663	for ("$_[1]") {
519	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.
520		665
521	# things seen, not parsed:	666	/^HTTP\/0([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]) )? \012/gxci
522	# p3pP="NON CUR OTPi OUR NOR UNI"	667	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
523		668
524	$hdr{lc $1} .= ",$2"	669	# 100 Continue handling
525	while /\G	670	# should not happen as we don't send expect: 100-continue,
526	([^:\000-\037]*):	671	# but we handle it just in case.
527	[\011\040]*	672	# since we send the request body regardless, if we get an error
528	((?: [^\012]+ \| \012[\011\040] )*)	673	# we are out of-sync, which we currently do NOT handle correctly.
529	\012	674	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
530	/gxc;	675	if $2 eq 100;
531		676
		677	push @pseudo,
		678	HTTPVersion => $1,
		679	Status => $2,
		680	Reason => $3,
532	/\G$/	681	;
		682
		683	my $hdr = parse_hdr
533	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", URL => $url }));	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	$url =~ s/\/[^\/]*$//;
534	}	700	}
535		701
536	substr $_, 0, 1, ""	702	$hdr{location} = "$url/$hdr{location}";
537	for values %hdr;	703	}
538		704
		705	my $redirect;
		706
		707	if ($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";
539	# redirect handling	718	$redirect = 1;
540	# microsoft and other shitheads don't give a shit for following standards,	719	} elsif ($status == 307) {
541	# try to support some common forms of broken Location headers.	720	$redirect = 1;
542	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {	721	}
543	$hdr{location} =~ s/^\.\/+//;	722	}
544		723
545	my $url = "$rscheme://$uhost:$uport";	724	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
		725	my $may_keep_alive = $_[3];
546		726
547	unless ($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) {
548	$url .= $upath;	794	$cl += $len;
549	$url =~ s/\/[^\/]*$//;	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	});
550	}	849	}
551
552	$hdr{location} = "$url/$hdr{location}";
553	}	850	} else {
		851	$_[0]->on_eof (undef);
554		852
555	my $redirect;
556
557	if ($recurse) {	853	if ($len) {
558	if ($hdr{Status} =~ /^30[12]$/ && $method ne "POST") {	854	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
559	# apparently, mozilla et al. just change POST to GET here	855	$_[0]->on_read (sub {
560	# more research is needed before we do the same	856	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
		857	if $len <= length $_[0]{rbuf};
561	$redirect = 1;	858	});
562	} elsif ($hdr{Status} == 303) {	859	} else {
563	# even http/1.1 is unclear on how to mutate the method	860	$_[0]->on_error (sub {
564	$method = "GET" unless $method eq "HEAD";	861	($! == Errno::EPIPE \|\| !$!)
		862	? $finish->(delete $_[0]{rbuf})
		863	: $finish->(undef, 599 => $_[2]);
565	$redirect = 1;	864	});
566	} elsif ($hdr{Status} == 307 && $method =~ /^(?:GET\|HEAD)$/) {	865	$_[0]->on_read (sub { });
567	$redirect = 1;
568	}	866	}
569	}	867	}
570
571	my $finish = sub {
572	$state{handle}->destroy if $state{handle};
573	%state = ();
574
575	# set-cookie processing
576	if ($arg{cookie_jar}) {
577	for ($_[1]{"set-cookie"}) {
578	# parse NAME=VALUE
579	my @kv;
580
581	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
582	my $name = $1;
583	my $value = $3;
584
585	unless ($value) {
586	$value = $2;
587	$value =~ s/\\(.)/$1/gs;
588	}
589
590	push @kv, $name => $value;
591
592	last unless /\G\s*;/gc;
593	}
594
595	last unless @kv;
596
597	my $name = shift @kv;
598	my %kv = (value => shift @kv, @kv);
599
600	my $cdom;
601	my $cpath = (delete $kv{path}) \|\| "/";
602
603	if (exists $kv{domain}) {
604	$cdom = delete $kv{domain};
605
606	$cdom =~ s/^\.?/./; # make sure it starts with a "."
607
608	next if $cdom =~ /\.$/;
609
610	# this is not rfc-like and not netscape-like. go figure.
611	my $ndots = $cdom =~ y/.//;
612	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
613	} else {
614	$cdom = $uhost;
615	}
616
617	# store it
618	$arg{cookie_jar}{version} = 1;
619	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
620
621	redo if /\G\s*,/gc;
622	}
623	}
624
625	if ($redirect && exists $hdr{location}) {
626	# we ignore any errors, as it is very common to receive
627	# Content-Length != 0 but no actual body
628	# we also access %hdr, as $_[1] might be an erro
629	http_request ($method => $hdr{location}, %arg, recurse => $recurse - 1, $cb);
630	} else {
631	$cb->($_[0], $_[1]);
632	}
633	};
634
635	my $len = $hdr{"content-length"};
636
637	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
638	$finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", URL => $url });
639	} elsif (
640	$hdr{Status} =~ /^(?:1..\|[23]04)$/
641	or $method eq "HEAD"
642	or (defined $len && !$len)
643	) {
644	# no body
645	$finish->("", \%hdr);
646	} else {
647	# body handling, four different code paths
648	# for want_body_handle, on_body (2x), normal (2x)
649	# we might read too much here, but it does not matter yet (no pers. connections)
650	if (!$redirect && $arg{want_body_handle}) {
651	$_[0]->on_eof (undef);
652	$_[0]->on_error (undef);
653	$_[0]->on_read (undef);
654
655	$finish->(delete $state{handle}, \%hdr);
656
657	} elsif ($arg{on_body}) {
658	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
659	if ($len) {
660	$_[0]->on_eof (undef);
661	$_[0]->on_read (sub {
662	$len -= length $_[0]{rbuf};
663
664	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
665	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
666
667	$len > 0
668	or $finish->("", \%hdr);
669	});
670	} else {
671	$_[0]->on_eof (sub {
672	$finish->("", \%hdr);
673	});
674	$_[0]->on_read (sub {
675	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
676	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
677	});
678	}
679	} else {
680	$_[0]->on_eof (undef);
681
682	if ($len) {
683	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
684	$_[0]->on_read (sub {
685	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
686	if $len <= length $_[0]{rbuf};
687	});
688	} else {
689	$_[0]->on_error (sub {
690	$! == Errno::EPIPE \|\| !$!
691	? $finish->(delete $_[0]{rbuf}, \%hdr)
692	: $finish->(undef, { Status => 599, Reason => $_[2], URL => $url });
693	});
694	$_[0]->on_read (sub { });
695	}
696	}
697	}
698	});	868	}
699	});	869	};
		870
		871	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
700	};	872	};
701		873
702	# now handle proxy-CONNECT method	874	# now handle proxy-CONNECT method
703	if ($proxy && $uscheme eq "https") {	875	if ($proxy && $uscheme eq "https") {
704	# oh dear, we have to wrap it into a connect request	876	# oh dear, we have to wrap it into a connect request
705		877
706	# maybe re-use $uauthority with patched port?	878	# maybe re-use $uauthority with patched port?
707	$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");
708	$state{handle}->push_read (line => $qr_nlnl, sub {	880	$state{handle}->push_read (line => $qr_nlnl, sub {
709	$_[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
710	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", URL => $url }));	882	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
711		883
712	if ($2 == 200) {	884	if ($2 == 200) {
713	$rpath = $upath;	885	$rpath = $upath;
714	&$handle_actual_request;	886	&$handle_actual_request;
715	} else {	887	} else {
716	%state = ();	888	%state = ();
717	$cb->(undef, { Status => $2, Reason => $3, URL => $url });	889	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
718	}	890	}
719	});	891	});
720	} else {	892	} else {
721	&$handle_actual_request;	893	&$handle_actual_request;
722	}	894	}
		895	};
723		896
724	}, $arg{on_prepare} \|\| sub { $timeout };	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 { $timeout });
		901
725	};	902	};
726		903
727	defined wantarray && AnyEvent::Util::guard { %state = () }	904	defined wantarray && AnyEvent::Util::guard { %state = () }
728	}	905	}
729		906
…		…
743	&http_request	920	&http_request
744	}	921	}
745		922
746	=back	923	=back
747		924
		925	=head2 DNS CACHING
		926
		927	AnyEvent::HTTP uses the AnyEvent::Socket::tcp_connect function for
		928	the actual connection, which in turn uses AnyEvent::DNS to resolve
		929	hostnames. The latter is a simple stub resolver and does no caching
		930	on its own. If you want DNS caching, you currently have to provide
		931	your own default resolver (by storing a suitable resolver object in
		932	C<$AnyEvent::DNS::RESOLVER>).
		933
748	=head2 GLOBAL FUNCTIONS AND VARIABLES	934	=head2 GLOBAL FUNCTIONS AND VARIABLES
749		935
750	=over 4	936	=over 4
751		937
752	=item AnyEvent::HTTP::set_proxy "proxy-url"	938	=item AnyEvent::HTTP::set_proxy "proxy-url"
…		…
755	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
756	otherwise.	942	otherwise.
757		943
758	To clear an already-set proxy, use C<undef>.	944	To clear an already-set proxy, use C<undef>.
759		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
760	=item $AnyEvent::HTTP::MAX_RECURSE	957	=item $AnyEvent::HTTP::MAX_RECURSE
761		958
762	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>).
763		960
764	=item $AnyEvent::HTTP::USERAGENT	961	=item $AnyEvent::HTTP::USERAGENT
…		…
782	connections. This number of can be useful for load-leveling.	979	connections. This number of can be useful for load-leveling.
783		980
784	=back	981	=back
785		982
786	=cut	983	=cut
		984
		985	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		986	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		987
		988	sub format_date($) {
		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, $_, $y);
		1024	}
		1025	}
		1026
		1027	undef
		1028	}
787		1029
788	sub set_proxy($) {	1030	sub set_proxy($) {
789	if (length $_[0]) {	1031	if (length $_[0]) {
790	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix	1032	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
791	or Carp::croak "$_[0]: invalid proxy URL";	1033	or Carp::croak "$_[0]: invalid proxy URL";
…		…
798	# initialise proxy from environment	1040	# initialise proxy from environment
799	eval {	1041	eval {
800	set_proxy $ENV{http_proxy};	1042	set_proxy $ENV{http_proxy};
801	};	1043	};
802		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
803	=head1 SEE ALSO	1101	=head1 SEE ALSO
804		1102
805	L<AnyEvent>.	1103	L<AnyEvent>.
806		1104
807	=head1 AUTHOR	1105	=head1 AUTHOR

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.54 by root, Wed Jun 16 18:09:52 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 1.54 by root, Wed Jun 16 18:09:52 2010 UTC vs.
Revision 1.76 by root, Sat Jan 1 02:20:49 2011 UTC