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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.49 by root, Wed Aug 5 16:23:48 2009 UTC vs.
Revision 1.71 by root, Fri Dec 31 20:50:58 2010 UTC

…		…
41	use strict;	41	use strict;
42	no warnings;	42	no warnings;
43		43
44	use Errno ();	44	use Errno ();
45		45
46	use AnyEvent 4.8 ();	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 = '1.42';	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 => $seconds
148		162
149	The time-out to use for various stages - each connect attempt will reset	163	The time-out to use for various stages - each connect attempt will reset
150	the timeout, as will read or write activity. Default timeout is 5 minutes.	164	the timeout, as will read or write activity, i.e. this is not an overall
		165	timeout.
		166
		167	Default timeout is 5 minutes.
151		168
152	=item proxy => [$host, $port[, $scheme]] or undef	169	=item proxy => [$host, $port[, $scheme]] or undef
153		170
154	Use the given http proxy for all requests. If not specified, then the	171	Use the given http proxy for all requests. If not specified, then the
155	default proxy (as specified by C<$ENV{http_proxy}>) is used.	172	default proxy (as specified by C<$ENV{http_proxy}>) is used.
…		…
157	C<$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
158	HTTPS.	175	HTTPS.
159		176
160	=item body => $string	177	=item body => $string
161		178
162	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
163	this module might offer more options).	180	this module might offer more options).
164		181
165	=item cookie_jar => $hash_ref	182	=item cookie_jar => $hash_ref
166		183
167	Passing this parameter enables (simplified) cookie-processing, loosely	184	Passing this parameter enables (simplified) cookie-processing, loosely
168	based on the original netscape specification.	185	based on the original netscape specification.
169		186
170	The C<$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
171	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
172	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
173	recommended, as expiry times are currently being ignored.	190	recommended, as session-only cookies might survive longer than expected.
174		191
175	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
176	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
177	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
178	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
179	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.
180		201
181	=item tls_ctx => $scheme \| $tls_ctx	202	=item tls_ctx => $scheme \| $tls_ctx
182		203
183	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
184	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
…		…
188	verification) TLS context.	209	verification) TLS context.
189		210
190	The default for this option is C<low>, which could be interpreted as "give	211	The default for this option is C<low>, which could be interpreted as "give
191	me the page, no matter what".	212	me the page, no matter what".
192		213
		214	=item on_prepare => $callback->($fh)
		215
		216	In rare cases you need to "tune" the socket before it is used to
		217	connect (for exmaple, to bind it on a given IP address). This parameter
		218	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>
		219	and behaves exactly the same way (e.g. it has to provide a
		220	timeout). See the description for the C<$prepare_cb> argument of
		221	C<AnyEvent::Socket::tcp_connect> for details.
		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
193	=item on_header => $callback->($headers)	235	=item on_header => $callback->($headers)
194		236
195	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
196	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
197	locally-generated errors).	239	locally-generated errors).
…		…
202		244
203	This callback is useful, among other things, to quickly reject unwanted	245	This callback is useful, among other things, to quickly reject unwanted
204	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
205	doing a C<HEAD> request.	247	doing a C<HEAD> request.
206		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
207	Example: cancel the request unless the content-type is "text/html".	253	Example: cancel the request unless the content-type is "text/html".
208		254
209	on_header => sub {	255	on_header => sub {
210	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	256	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
211	},	257	},
…		…
217	string instead of the body data.	263	string instead of the body data.
218		264
219	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),
220	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
221	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.
222		271
223	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
224	(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
225	be extracted, or when the body should be processed incrementally.	274	be extracted, or when the body should be processed incrementally.
226		275
…		…
252	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
253	that doesn't solve your problem in a better way.	302	that doesn't solve your problem in a better way.
254		303
255	=back	304	=back
256		305
257	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.
258		308
259	http_request GET => "http://www.nethype.de/", sub {	309	http_request GET => "http://www.nethype.de/", sub {
260	my ($body, $hdr) = @_;	310	my ($body, $hdr) = @_;
261	print "$body\n";	311	print "$body\n";
262	};	312	};
263		313
264	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
265	timeout of 30 seconds.	315	timeout of 30 seconds.
266		316
267	http_request	317	http_request
268	GET => "https://www.google.com",	318	GET => "https://www.google.com",
269	timeout => 30,	319	timeout => 30,
…		…
272	use Data::Dumper;	322	use Data::Dumper;
273	print Dumper $hdr;	323	print Dumper $hdr;
274	}	324	}
275	;	325	;
276		326
277	Example: make another simple HTTP GET request, but immediately try to	327	Example: do another simple HTTP GET request, but immediately try to
278	cancel it.	328	cancel it.
279		329
280	my $request = http_request GET => "http://www.nethype.de/", sub {	330	my $request = http_request GET => "http://www.nethype.de/", sub {
281	my ($body, $hdr) = @_;	331	my ($body, $hdr) = @_;
282	print "$body\n";	332	print "$body\n";
…		…
314	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	364	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
315		365
316	_slot_schedule $_[0];	366	_slot_schedule $_[0];
317	}	367	}
318		368
319	our $qr_nl = qr{\015?\012};	369	sub cookie_jar_extract($$$$) {
		370	my ($jar, $uscheme, $uhost, $upath) = @_;
		371
		372	%$jar = () if $jar->{version} != 1;
		373
		374	my @cookies;
		375
		376	while (my ($chost, $paths) = each %$jar) {
		377	next unless ref $paths;
		378
		379	if ($chost =~ /^\./) {
		380	next unless $chost eq substr $uhost, -length $chost;
		381	} elsif ($chost =~ /\./) {
		382	next unless $chost eq $uhost;
		383	} else {
		384	next;
		385	}
		386
		387	while (my ($cpath, $cookies) = each %$paths) {
		388	next unless $cpath eq substr $upath, 0, length $cpath;
		389
		390	while (my ($cookie, $kv) = each %$cookies) {
		391	next if $uscheme ne "https" && exists $kv->{secure};
		392
		393	if (exists $kv->{expires}) {
		394	if (AE::now > parse_date ($kv->{expires})) {
		395	delete $cookies->{$cookie};
		396	next;
		397	}
		398	}
		399
		400	my $value = $kv->{value};
		401
		402	if ($value =~ /[=;,[:space:]]/) {
		403	$value =~ s/([\\"])/\\$1/g;
		404	$value = "\"$value\"";
		405	}
		406
		407	push @cookies, "$cookie=$value";
		408	}
		409	}
		410	}
		411
		412	\@cookies
		413	}
		414
		415	# continue to parse $_ for headers and place them into the arg
		416	sub parse_hdr() {
		417	my %hdr;
		418
		419	# things seen, not parsed:
		420	# p3pP="NON CUR OTPi OUR NOR UNI"
		421
		422	$hdr{lc $1} .= ",$2"
		423	while /\G
		424	([^:\000-\037]*):
		425	[\011\040]*
		426	((?: [^\012]+ \| \012[\011\040] )*)
		427	\012
		428	/gxc;
		429
		430	/\G$/
		431	or return;
		432
		433	# remove the "," prefix we added to all headers above
		434	substr $_, 0, 1, ""
		435	for values %hdr;
		436
		437	\%hdr
		438	}
		439
320	our $qr_nlnl = qr{(?<![^\012])\015?\012};	440	our $qr_nlnl = qr{(?<![^\012])\015?\012};
321		441
322	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	442	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
323	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	443	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
324		444
…		…
337	while (my ($k, $v) = each %$hdr) {	457	while (my ($k, $v) = each %$hdr) {
338	$hdr{lc $k} = $v;	458	$hdr{lc $k} = $v;
339	}	459	}
340	}	460	}
341		461
		462	# pseudo headers for all subsequent responses
		463	my @pseudo = (URL => $url);
		464	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
		465
342	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	466	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
343		467
344	return $cb->(undef, { Status => 599, Reason => "Too many redirections", URL => $url })	468	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
345	if $recurse < 0;	469	if $recurse < 0;
346		470
347	my $proxy = $arg{proxy} \|\| $PROXY;	471	my $proxy = $arg{proxy} \|\| $PROXY;
348	my $timeout = $arg{timeout} \|\| $TIMEOUT;	472	my $timeout = $arg{timeout} \|\| $TIMEOUT;
349		473
350	my ($uscheme, $uauthority, $upath, $query, $fragment) =	474	my ($uscheme, $uauthority, $upath, $query, $fragment) =
351	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:\?([^#]))?(?:#(.))?\|;	475	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:(\?[^#]))?(?:#(.))?\|;
352		476
353	$uscheme = lc $uscheme;	477	$uscheme = lc $uscheme;
354		478
355	my $uport = $uscheme eq "http" ? 80	479	my $uport = $uscheme eq "http" ? 80
356	: $uscheme eq "https" ? 443	480	: $uscheme eq "https" ? 443
357	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", URL => $url });	481	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
358		482
359	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	483	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
360	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", URL => $url });	484	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
361		485
362	my $uhost = $1;	486	my $uhost = $1;
363	$uport = $2 if defined $2;	487	$uport = $2 if defined $2;
364		488
365	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost";	489	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
		490	unless exists $hdr{host};
366		491
367	$uhost =~ s/^\[(.*)\]$/$1/;	492	$uhost =~ s/^\[(.*)\]$/$1/;
368	$upath .= "?$query" if length $query;	493	$upath .= $query if length $query;
369		494
370	$upath =~ s%^/?%/%;	495	$upath =~ s%^/?%/%;
371		496
372	# cookie processing	497	# cookie processing
373	if (my $jar = $arg{cookie_jar}) {	498	if (my $jar = $arg{cookie_jar}) {
374	%$jar = () if $jar->{version} != 1;	499	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
375		500
376	my @cookie;
377
378	while (my ($chost, $v) = each %$jar) {
379	if ($chost =~ /^\./) {
380	next unless $chost eq substr $uhost, -length $chost;
381	} elsif ($chost =~ /\./) {
382	next unless $chost eq $uhost;
383	} else {
384	next;
385	}
386
387	while (my ($cpath, $v) = each %$v) {
388	next unless $cpath eq substr $upath, 0, length $cpath;
389
390	while (my ($k, $v) = each %$v) {
391	next if $uscheme ne "https" && exists $v->{secure};
392	my $value = $v->{value};
393	$value =~ s/([\\"])/\\$1/g;
394	push @cookie, "$k=\"$value\"";
395	}
396	}
397	}
398
399	$hdr{cookie} = join "; ", @cookie	501	$hdr{cookie} = join "; ", @$cookies
400	if @cookie;	502	if @$cookies;
401	}	503	}
402		504
403	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	505	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
404		506
405	if ($proxy) {	507	if ($proxy) {
…		…
413	} else {	515	} else {
414	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	516	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
415	}	517	}
416		518
417	# leave out fragment and query string, just a heuristic	519	# leave out fragment and query string, just a heuristic
418	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	520	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
419	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	521	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
420		522
421	$hdr{"content-length"} = length $arg{body};	523	$hdr{"content-length"} = length $arg{body}
		524	if length $arg{body} \|\| $method ne "GET";
		525
		526	$hdr{connection} = "close TE"; #1.1
		527	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
422		528
423	my %state = (connect_guard => 1);	529	my %state = (connect_guard => 1);
424		530
425	_get_slot $uhost, sub {	531	_get_slot $uhost, sub {
426	$state{slot_guard} = shift;	532	$state{slot_guard} = shift;
427		533
428	return unless $state{connect_guard};	534	return unless $state{connect_guard};
429		535
430	$state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {	536	my $connect_cb = sub {
431	$state{fh} = shift	537	$state{fh} = shift
432	or do {	538	or do {
433	my $err = "$!";	539	my $err = "$!";
434	%state = ();	540	%state = ();
435	return $cb->(undef, { Status => 599, Reason => $err, URL => $url });	541	return $cb->(undef, { @pseudo, Status => 599, Reason => $err });
436	};	542	};
437		543
438	pop; # free memory, save a tree	544	pop; # free memory, save a tree
439		545
440	return unless delete $state{connect_guard};	546	return unless delete $state{connect_guard};
441		547
442	# get handle	548	# get handle
443	$state{handle} = new AnyEvent::Handle	549	$state{handle} = new AnyEvent::Handle
444	fh => $state{fh},	550	fh => $state{fh},
		551	peername => $rhost,
		552	tls_ctx => $arg{tls_ctx},
		553	# these need to be reconfigured on keepalive handles
445	timeout => $timeout,	554	timeout => $timeout,
446	peername => $rhost,	555	on_error => sub {
447	tls_ctx => $arg{tls_ctx};	556	%state = ();
		557	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });
		558	},
		559	on_eof => sub {
		560	%state = ();
		561	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });
		562	},
		563	;
448		564
449	# limit the number of persistent connections	565	# limit the number of persistent connections
450	# keepalive not yet supported	566	# keepalive not yet supported
451	if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	567	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
452	++$KA_COUNT{$_[1]};	568	# ++$KA_COUNT{$_[1]};
453	$state{handle}{ka_count_guard} = AnyEvent::Util::guard {	569	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
454	--$KA_COUNT{$_[1]}	570	# --$KA_COUNT{$_[1]}
455	};	571	# };
456	$hdr{connection} = "keep-alive";	572	# $hdr{connection} = "keep-alive";
457	} else {
458	delete $hdr{connection};
459	}	573	# }
460
461	# (re-)configure handle
462	$state{handle}->on_error (sub {
463	%state = ();
464	$cb->(undef, { Status => 599, Reason => $_[2], URL => $url });
465	});
466	$state{handle}->on_eof (sub {
467	%state = ();
468	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", URL => $url });
469	});
470		574
471	$state{handle}->starttls ("connect") if $rscheme eq "https";	575	$state{handle}->starttls ("connect") if $rscheme eq "https";
472		576
473	# handle actual, non-tunneled, request	577	# handle actual, non-tunneled, request
474	my $handle_actual_request = sub {	578	my $handle_actual_request = sub {
475	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	579	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
476		580
477	# send request	581	# send request
478	$state{handle}->push_write (	582	$state{handle}->push_write (
479	"$method $rpath HTTP/1.0\015\012"	583	"$method $rpath HTTP/1.1\015\012"
480	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	584	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
481	. "\015\012"	585	. "\015\012"
482	. (delete $arg{body})	586	. (delete $arg{body})
483	);	587	);
484		588
		589	# return if error occured during push_write()
		590	return unless %state;
		591
485	%hdr = (); # reduce memory usage, save a kitten	592	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
486		593
487	# status line	594	# status line and headers
488	$state{handle}->push_read (line => $qr_nl, sub {	595	$state{read_response} = sub {
489	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
490	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", URL => $url }));
491
492	my %hdr = ( # response headers
493	HTTPVersion => ",$1",
494	Status => ",$2",
495	Reason => ",$3",
496	URL => ",$url"
497	);
498
499	# headers, could be optimized a bit
500	$state{handle}->unshift_read (line => $qr_nlnl, sub {
501	for ("$_[1]") {	596	for ("$_[1]") {
502	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	597	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
503		598
504	# things seen, not parsed:	599	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc
505	# p3pP="NON CUR OTPi OUR NOR UNI"	600	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
506		601
507	$hdr{lc $1} .= ",$2"	602	# 100 Continue handling
508	while /\G	603	# should not happen as we don't send expect: 100-continue,
509	([^:\000-\037]*):	604	# but we handle it just in case.
510	[\011\040]*	605	# since we send the request body regardless, if we get an error
511	((?: [^\012]+ \| \012[\011\040] )*)	606	# we are out of-sync, which we currently do NOT handle correctly.
512	\012	607	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
513	/gxc;	608	if $2 eq 100;
514		609
		610	push @pseudo,
		611	HTTPVersion => $1,
		612	Status => $2,
		613	Reason => $3,
515	/\G$/	614	;
		615
		616	my $hdr = parse_hdr
516	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", URL => $url }));	617	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		618
		619	%hdr = (%$hdr, @pseudo);
		620	}
		621
		622	# redirect handling
		623	# microsoft and other shitheads don't give a shit for following standards,
		624	# try to support some common forms of broken Location headers.
		625	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		626	$hdr{location} =~ s/^\.\/+//;
		627
		628	my $url = "$rscheme://$uhost:$uport";
		629
		630	unless ($hdr{location} =~ s/^\///) {
		631	$url .= $upath;
		632	$url =~ s/\/[^\/]*$//;
517	}	633	}
518		634
519	substr $_, 0, 1, ""
520	for values %hdr;
521
522	# redirect handling
523	# microsoft and other shitheads don't give a shit for following standards,
524	# try to support some common forms of broken Location headers.
525	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
526	$hdr{location} =~ s/^\.\/+//;
527
528	my $url = "$rscheme://$uhost:$uport";
529
530	unless ($hdr{location} =~ s/^\///) {
531	$url .= $upath;
532	$url =~ s/\/[^\/]*$//;
533	}
534
535	$hdr{location} = "$url/$hdr{location}";	635	$hdr{location} = "$url/$hdr{location}";
		636	}
		637
		638	my $redirect;
		639
		640	if ($recurse) {
		641	my $status = $hdr{Status};
		642
		643	# industry standard is to redirect POST as GET for
		644	# 301, 302 and 303, in contrast to http/1.0 and 1.1.
		645	# also, the UA should ask the user for 301 and 307 and POST,
		646	# industry standard seems to be to simply follow.
		647	# we go with the industry standard.
		648	if ($status == 301 or $status == 302 or $status == 303) {
		649	# HTTP/1.1 is unclear on how to mutate the method
		650	$method = "GET" unless $method eq "HEAD";
		651	$redirect = 1;
		652	} elsif ($status == 307) {
		653	$redirect = 1;
536	}	654	}
		655	}
537		656
		657	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
538	my $redirect;	658	my $keepalive = pop;
539		659
		660	$state{handle}->destroy if $state{handle};
		661	%state = ();
		662
		663	if (defined $_[1]) {
		664	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		665	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		666	}
		667
		668	# set-cookie processing
540	if ($recurse) {	669	if ($arg{cookie_jar}) {
541	if ($hdr{Status} =~ /^30[12]$/ && $method ne "POST") {	670	for ($hdr{"set-cookie"}) {
542	# apparently, mozilla et al. just change POST to GET here	671	# parse NAME=VALUE
543	# more research is needed before we do the same	672	my @kv;
		673
		674	while (
		675	m{
		676	\G\s*
		677	(?:
		678	expires \s=\s ([A-Z][a-z][a-z],\ [^,;]+)
		679	\| ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )
		680	)
		681	}gcxsi
		682	) {
		683	my $name = $2;
		684	my $value = $4;
		685
		686	unless (defined $name) {
		687	# expires
		688	$name = "expires";
		689	$value = $1;
		690	} elsif (!defined $value) {
		691	# quoted
		692	$value = $3;
		693	$value =~ s/\\(.)/$1/gs;
		694	}
		695
		696	push @kv, lc $name, $value;
		697
		698	last unless /\G\s*;/gc;
		699	}
		700
		701	last unless @kv;
		702
		703	my $name = shift @kv;
		704	my %kv = (value => shift @kv, @kv);
		705
		706	$kv{expires} \|\|= format_date (AE::now + $kv{"max-age"})
		707	if exists $kv{"max-age"};
		708
		709	my $cdom;
		710	my $cpath = (delete $kv{path}) \|\| "/";
		711
		712	if (exists $kv{domain}) {
		713	$cdom = delete $kv{domain};
		714
		715	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		716
		717	next if $cdom =~ /\.$/;
		718
		719	# this is not rfc-like and not netscape-like. go figure.
		720	my $ndots = $cdom =~ y/.//;
		721	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		722	} else {
		723	$cdom = $uhost;
		724	}
		725
544	$redirect = 1;	726	# store it
545	} elsif ($hdr{Status} == 303) {	727	$arg{cookie_jar}{version} = 1;
546	# even http/1.1 is unclear on how to mutate the method	728	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
547	$method = "GET" unless $method eq "HEAD";	729
548	$redirect = 1;	730	redo if /\G\s*,/gc;
549	} elsif ($hdr{Status} == 307 && $method =~ /^(?:GET\|HEAD)$/) {
550	$redirect = 1;
551	}	731	}
552	}	732	}
553		733
554	my $finish = sub {
555	$state{handle}->destroy if $state{handle};
556	%state = ();
557
558	# set-cookie processing
559	if ($arg{cookie_jar}) {
560	for ($_[1]{"set-cookie"}) {
561	# parse NAME=VALUE
562	my @kv;
563
564	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
565	my $name = $1;
566	my $value = $3;
567
568	unless ($value) {
569	$value = $2;
570	$value =~ s/\\(.)/$1/gs;
571	}
572
573	push @kv, $name => $value;
574
575	last unless /\G\s*;/gc;
576	}
577
578	last unless @kv;
579
580	my $name = shift @kv;
581	my %kv = (value => shift @kv, @kv);
582
583	my $cdom;
584	my $cpath = (delete $kv{path}) \|\| "/";
585
586	if (exists $kv{domain}) {
587	$cdom = delete $kv{domain};
588
589	$cdom =~ s/^\.?/./; # make sure it starts with a "."
590
591	next if $cdom =~ /\.$/;
592
593	# this is not rfc-like and not netscape-like. go figure.
594	my $ndots = $cdom =~ y/.//;
595	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
596	} else {
597	$cdom = $uhost;
598	}
599
600	# store it
601	$arg{cookie_jar}{version} = 1;
602	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
603
604	redo if /\G\s*,/gc;
605	}
606	}
607
608	if ($redirect && exists $hdr{location}) {	734	if ($redirect && exists $hdr{location}) {
609	# we ignore any errors, as it is very common to receive	735	# we ignore any errors, as it is very common to receive
610	# Content-Length != 0 but no actual body	736	# Content-Length != 0 but no actual body
611	# we also access %hdr, as $_[1] might be an erro	737	# we also access %hdr, as $_[1] might be an erro
612	http_request ($method => $hdr{location}, %arg, recurse => $recurse - 1, $cb);	738	http_request (
613	} else {	739	$method => $hdr{location},
614	$cb->($_[0], $_[1]);
615	}	740	%arg,
		741	recurse => $recurse - 1,
		742	Redirect => [$_[0], \%hdr],
616	};	743	$cb);
617
618	my $len = $hdr{"content-length"};
619
620	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
621	$finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", URL => $url });
622	} elsif (
623	$hdr{Status} =~ /^(?:1..\|[23]04)$/
624	or $method eq "HEAD"
625	or (defined $len && !$len)
626	) {
627	# no body
628	$finish->("", \%hdr);
629	} else {	744	} else {
		745	$cb->($_[0], \%hdr);
		746	}
		747	};
		748
		749	my $len = $hdr{"content-length"};
		750
		751	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		752	$finish->(undef, 598 => "Request cancelled by on_header");
		753	} elsif (
		754	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		755	or $method eq "HEAD"
		756	or (defined $len && !$len)
		757	) {
		758	# no body
		759	$finish->("", undef, undef, 1);
		760	} else {
630	# body handling, four different code paths	761	# body handling, many different code paths
631	# for want_body_handle, on_body (2x), normal (2x)	762	# - no body expected
632	# we might read too much here, but it does not matter yet (no pers. connections)	763	# - want_body_handle
		764	# - te chunked
		765	# - 2x length known (with or without on_body)
		766	# - 2x length not known (with or without on_body)
633	if (!$redirect && $arg{want_body_handle}) {	767	if (!$redirect && $arg{want_body_handle}) {
634	$_[0]->on_eof (undef);	768	$_[0]->on_eof (undef);
635	$_[0]->on_error (undef);	769	$_[0]->on_error (undef);
636	$_[0]->on_read (undef);	770	$_[0]->on_read (undef);
637		771
638	$finish->(delete $state{handle}, \%hdr);	772	$finish->(delete $state{handle});
639		773
640	} elsif ($arg{on_body}) {	774	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		775	my $cl = 0;
		776	my $body = undef;
		777	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		778
641	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });	779	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		780
		781	my $read_chunk; $read_chunk = sub {
		782	$_[1] =~ /^([0-9a-fA-F]+)/
		783	or $finish->(undef, 599 => "Garbled chunked transfer encoding");
		784
		785	my $len = hex $1;
		786
642	if ($len) {	787	if ($len) {
643	$_[0]->on_eof (undef);	788	$cl += $len;
		789
		790	$_[0]->push_read (chunk => $len, sub {
		791	$on_body->($_[1], \%hdr)
		792	or return $finish->(undef, 598 => "Request cancelled by on_body");
		793
644	$_[0]->on_read (sub {	794	$_[0]->push_read (line => sub {
645	$len -= length $_[0]{rbuf};	795	length $_[1]
646		796	and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
647	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	797	$_[0]->push_read (line => $read_chunk);
648	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
649
650	$len > 0	798	});
651	or $finish->("", \%hdr);
652	});	799	});
653	} else {	800	} else {
654	$_[0]->on_eof (sub {	801	$hdr{"content-length"} \|\|= $cl;
655	$finish->("", \%hdr);	802
		803	$_[0]->push_read (line => $qr_nlnl, sub {
		804	if (length $_[1]) {
		805	for ("$_[1]") {
		806	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		807
		808	my $hdr = parse_hdr
		809	or return $finish->(undef, 599 => "Garbled response trailers");
		810
		811	%hdr = (%hdr, %$hdr);
		812	}
656	});	813	}
657	$_[0]->on_read (sub {	814
658	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	815	$finish->($body, undef, undef, 1);
659	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
660	});	816	});
661	}	817	}
		818	};
		819
		820	$_[0]->push_read (line => $read_chunk);
		821
		822	} elsif ($arg{on_body}) {
		823	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		824
		825	if ($len) {
		826	$_[0]->on_read (sub {
		827	$len -= length $_[0]{rbuf};
		828
		829	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		830	or return $finish->(undef, 598 => "Request cancelled by on_body");
		831
		832	$len > 0
		833	or $finish->("", undef, undef, 1);
		834	});
662	} else {	835	} else {
663	$_[0]->on_eof (undef);	836	$_[0]->on_eof (sub {
664		837	$finish->("");
665	if ($len) {	838	});
666	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
667	$_[0]->on_read (sub {	839	$_[0]->on_read (sub {
		840	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		841	or $finish->(undef, 598 => "Request cancelled by on_body");
		842	});
		843	}
		844	} else {
		845	$_[0]->on_eof (undef);
		846
		847	if ($len) {
		848	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		849	$_[0]->on_read (sub {
668	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)	850	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
669	if $len <= length $_[0]{rbuf};	851	if $len <= length $_[0]{rbuf};
670	});	852	});
671	} else {	853	} else {
672	$_[0]->on_error (sub {	854	$_[0]->on_error (sub {
673	$! == Errno::EPIPE \|\| !$!	855	($! == Errno::EPIPE \|\| !$!)
674	? $finish->(delete $_[0]{rbuf}, \%hdr)	856	? $finish->(delete $_[0]{rbuf})
675	: $finish->(undef, { Status => 599, Reason => $_[2], URL => $url });	857	: $finish->(undef, 599 => $_[2]);
676	});	858	});
677	$_[0]->on_read (sub { });	859	$_[0]->on_read (sub { });
678	}
679	}	860	}
680	}	861	}
681	});	862	}
682	});	863	};
		864
		865	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
683	};	866	};
684		867
685	# now handle proxy-CONNECT method	868	# now handle proxy-CONNECT method
686	if ($proxy && $uscheme eq "https") {	869	if ($proxy && $uscheme eq "https") {
687	# oh dear, we have to wrap it into a connect request	870	# oh dear, we have to wrap it into a connect request
688		871
689	# maybe re-use $uauthority with patched port?	872	# maybe re-use $uauthority with patched port?
690	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");	873	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
691	$state{handle}->push_read (line => $qr_nlnl, sub {	874	$state{handle}->push_read (line => $qr_nlnl, sub {
692	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	875	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
693	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", URL => $url }));	876	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
694		877
695	if ($2 == 200) {	878	if ($2 == 200) {
696	$rpath = $upath;	879	$rpath = $upath;
697	&$handle_actual_request;	880	&$handle_actual_request;
698	} else {	881	} else {
699	%state = ();	882	%state = ();
700	$cb->(undef, { Status => $2, Reason => $3, URL => $url });	883	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
701	}	884	}
702	});	885	});
703	} else {	886	} else {
704	&$handle_actual_request;	887	&$handle_actual_request;
705	}	888	}
706
707	}, sub {
708	$timeout
709	};	889	};
		890
		891	my $tcp_connect = $arg{tcp_connect}
		892	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		893
		894	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		895
710	};	896	};
711		897
712	defined wantarray && AnyEvent::Util::guard { %state = () }	898	defined wantarray && AnyEvent::Util::guard { %state = () }
713	}	899	}
714		900
…		…
728	&http_request	914	&http_request
729	}	915	}
730		916
731	=back	917	=back
732		918
		919	=head2 DNS CACHING
		920
		921	AnyEvent::HTTP uses the AnyEvent::Socket::tcp_connect function for
		922	the actual connection, which in turn uses AnyEvent::DNS to resolve
		923	hostnames. The latter is a simple stub resolver and does no caching
		924	on its own. If you want DNS caching, you currently have to provide
		925	your own default resolver (by storing a suitable resolver object in
		926	C<$AnyEvent::DNS::RESOLVER>).
		927
733	=head2 GLOBAL FUNCTIONS AND VARIABLES	928	=head2 GLOBAL FUNCTIONS AND VARIABLES
734		929
735	=over 4	930	=over 4
736		931
737	=item AnyEvent::HTTP::set_proxy "proxy-url"	932	=item AnyEvent::HTTP::set_proxy "proxy-url"
738		933
739	Sets the default proxy server to use. The proxy-url must begin with a	934	Sets the default proxy server to use. The proxy-url must begin with a
740	string of the form C<http://host:port> (optionally C<https:...>).	935	string of the form C<http://host:port> (optionally C<https:...>), croaks
		936	otherwise.
		937
		938	To clear an already-set proxy, use C<undef>.
		939
		940	=item $date = AnyEvent::HTTP::format_date $timestamp
		941
		942	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
		943	Date (RFC 2616).
		944
		945	=item $timestamp = AnyEvent::HTTP::parse_date $date
		946
		947	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) and
		948	returns the corresponding POSIX timestamp, or C<undef> if the date cannot
		949	be parsed.
741		950
742	=item $AnyEvent::HTTP::MAX_RECURSE	951	=item $AnyEvent::HTTP::MAX_RECURSE
743		952
744	The default value for the C<recurse> request parameter (default: C<10>).	953	The default value for the C<recurse> request parameter (default: C<10>).
745		954
…		…
765		974
766	=back	975	=back
767		976
768	=cut	977	=cut
769		978
		979	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		980	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		981
		982	sub format_date($) {
		983	my ($time) = @_;
		984
		985	# RFC 822/1123 format
		986	my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time;
		987
		988	sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT",
		989	$weekday[$wday], $mday, $month[$mon], $year + 1900,
		990	$H, $M, $S;
		991	}
		992
		993	sub parse_date($) {
		994	my ($date) = @_;
		995
		996	my ($d, $m, $y, $H, $M, $S);
		997
		998	if ($date =~ /^[A-Z][a-z][a-z], ([0-9][0-9])[\- ]([A-Z][a-z][a-z])[\- ]([0-9][0-9][0-9][0-9]) ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) GMT$/) {
		999	# RFC 822/1123, required by RFC 2616 (with " ")
		1000	# cookie dates (with "-")
		1001
		1002	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
		1003
		1004	} elsif ($date =~ /^[A-Z][a-z]+, ([0-9][0-9])-([A-Z][a-z][a-z])-([0-9][0-9]) ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) GMT$/) {
		1005	# RFC 850
		1006	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
		1007
		1008	} elsif ($date =~ /^[A-Z][a-z][a-z] ([A-Z][a-z][a-z]) ([0-9 ][0-9]) ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) ([0-9][0-9][0-9][0-9])$/) {
		1009	# ISO C's asctime
		1010	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
		1011	}
		1012	# other formats fail in the loop below
		1013
		1014	for (0..11) {
		1015	if ($m eq $month[$_]) {
		1016	require Time::Local;
		1017	return Time::Local::timegm ($S, $M, $H, $d, $_, $y);
		1018	}
		1019	}
		1020
		1021	undef
		1022	}
		1023
770	sub set_proxy($) {	1024	sub set_proxy($) {
		1025	if (length $_[0]) {
771	$PROXY = [$2, $3 \|\| 3128, $1] if $_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix;	1026	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
		1027	or Carp::croak "$_[0]: invalid proxy URL";
		1028	$PROXY = [$2, $3 \|\| 3128, $1]
		1029	} else {
		1030	undef $PROXY;
		1031	}
772	}	1032	}
773		1033
774	# initialise proxy from environment	1034	# initialise proxy from environment
		1035	eval {
775	set_proxy $ENV{http_proxy};	1036	set_proxy $ENV{http_proxy};
		1037	};
		1038
		1039	=head2 SOCKS PROXIES
		1040
		1041	Socks proxies are not directly supported by AnyEvent::HTTP. You can
		1042	compile your perl to support socks, or use an external program such as
		1043	F<socksify> (dante) or F<tsocks> to make your program use a socks proxy
		1044	transparently.
		1045
		1046	Alternatively, for AnyEvent::HTTP only, you can use your own
		1047	C<tcp_connect> function that does the proxy handshake - here is an example
		1048	that works with socks4a proxies:
		1049
		1050	use Errno;
		1051	use AnyEvent::Util;
		1052	use AnyEvent::Socket;
		1053	use AnyEvent::Handle;
		1054
		1055	# host, port and username of/for your socks4a proxy
		1056	my $socks_host = "10.0.0.23";
		1057	my $socks_port = 9050;
		1058	my $socks_user = "";
		1059
		1060	sub socks4a_connect {
		1061	my ($host, $port, $connect_cb, $prepare_cb) = @_;
		1062
		1063	my $hdl = new AnyEvent::Handle
		1064	connect => [$socks_host, $socks_port],
		1065	on_prepare => sub { $prepare_cb->($_[0]{fh}) },
		1066	on_error => sub { $connect_cb->() },
		1067	;
		1068
		1069	$hdl->push_write (pack "CCnNZZ", 4, 1, $port, 1, $socks_user, $host);
		1070
		1071	$hdl->push_read (chunk => 8, sub {
		1072	my ($hdl, $chunk) = @_;
		1073	my ($status, $port, $ipn) = unpack "xCna4", $chunk;
		1074
		1075	if ($status == 0x5a) {
		1076	$connect_cb->($hdl->{fh}, (format_address $ipn) . ":$port");
		1077	} else {
		1078	$! = Errno::ENXIO; $connect_cb->();
		1079	}
		1080	});
		1081
		1082	$hdl
		1083	}
		1084
		1085	Use C<socks4a_connect> instead of C<tcp_connect> when doing C<http_request>s,
		1086	possibly after switching off other proxy types:
		1087
		1088	AnyEvent::HTTP::set_proxy undef; # usually you do not want other proxies
		1089
		1090	http_get 'http://www.google.com', tcp_connect => \&socks4a_connect, sub {
		1091	my ($data, $headers) = @_;
		1092	...
		1093	};
776		1094
777	=head1 SEE ALSO	1095	=head1 SEE ALSO
778		1096
779	L<AnyEvent>.	1097	L<AnyEvent>.
780		1098

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.49 by root, Wed Aug 5 16:23:48 2009 UTC vs. Revision 1.71 by root, Fri Dec 31 20:50:58 2010 UTC

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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.49 by root, Wed Aug 5 16:23:48 2009 UTC vs.
Revision 1.71 by root, Fri Dec 31 20:50:58 2010 UTC