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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.52 by root, Sat Sep 26 10:13:12 2009 UTC vs.
Revision 1.79 by root, Sat Jan 1 20:01:07 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 = '1.43';	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	$headers->{Redirect}[1]{Redirect} >> will then contain the original
		121	response, and so on.
108		122
109	If the server sends a header multiple times, then their contents will be	123	If the server sends a header multiple times, then their contents will be
110	joined together with a comma (C<,>), as per the HTTP spec.	124	joined together with a comma (C<,>), as per the HTTP spec.
111		125
112	If an internal error occurs, such as not being able to resolve a hostname,	126	If an internal error occurs, such as not being able to resolve a hostname,
113	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<59x>	127	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be
114	(usually C<599>) and the C<Reason> pseudo-header will contain an error	128	C<590>-C<599> and the C<Reason> pseudo-header will contain an error
115	message.	129	message. Currently the following status codes are used:
		130
		131	=over 4
		132
		133	=item 595 - errors during connection etsbalishment, proxy handshake.
		134
		135	=item 596 - errors during TLS negotiation, request sending and header processing.
		136
		137	=item 597 - errors during body receiving or processing.
		138
		139	=item 598 - user aborted request via C<on_header> or C<on_body>.
		140
		141	=item 599 - other, usually nonretryable, errors (garbled URL etc.).
		142
		143	=back
116		144
117	A typical callback might look like this:	145	A typical callback might look like this:
118		146
119	sub {	147	sub {
120	my ($body, $hdr) = @_;	148	my ($body, $hdr) = @_;
…		…
136	Whether to recurse requests or not, e.g. on redirects, authentication	164	Whether to recurse requests or not, e.g. on redirects, authentication
137	retries and so on, and how often to do so.	165	retries and so on, and how often to do so.
138		166
139	=item headers => hashref	167	=item headers => hashref
140		168
141	The request headers to use. Currently, C<http_request> may provide its	169	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	170	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	171	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	172	(this can be suppressed by using C<undef> for these headers in which case
145	sent at all).	173	they won't be sent at all).
146		174
147	=item timeout => $seconds	175	=item timeout => $seconds
148		176
149	The time-out to use for various stages - each connect attempt will reset	177	The time-out to use for various stages - each connect attempt will reset
150	the timeout, as will read or write activity, i.e. this is not an overall	178	the timeout, as will read or write activity, i.e. this is not an overall
…		…
160	C<$scheme> must be either missing, C<http> for HTTP or C<https> for	188	C<$scheme> must be either missing, C<http> for HTTP or C<https> for
161	HTTPS.	189	HTTPS.
162		190
163	=item body => $string	191	=item body => $string
164		192
165	The request body, usually empty. Will be-sent as-is (future versions of	193	The request body, usually empty. Will be sent as-is (future versions of
166	this module might offer more options).	194	this module might offer more options).
167		195
168	=item cookie_jar => $hash_ref	196	=item cookie_jar => $hash_ref
169		197
170	Passing this parameter enables (simplified) cookie-processing, loosely	198	Passing this parameter enables (simplified) cookie-processing, loosely
171	based on the original netscape specification.	199	based on the original netscape specification.
172		200
173	The C<$hash_ref> must be an (initially empty) hash reference which will	201	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	202	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	203	persistent storage with something like JSON or Storable, but this is not
176	recommended, as expiry times are currently being ignored.	204	recommended, as session-only cookies might survive longer than expected.
177		205
178	Note that this cookie implementation is not of very high quality, nor	206	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	207	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	208	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	209	working. Cookies are a privacy disaster, do not use them unless required
182	them unless required to.	210	to.
		211
		212	When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:>
		213	headers will be set and handled by this module, otherwise they will be
		214	left untouched.
183		215
184	=item tls_ctx => $scheme \| $tls_ctx	216	=item tls_ctx => $scheme \| $tls_ctx
185		217
186	Specifies the AnyEvent::TLS context to be used for https connections. This	218	Specifies the AnyEvent::TLS context to be used for https connections. This
187	parameter follows the same rules as the C<tls_ctx> parameter to	219	parameter follows the same rules as the C<tls_ctx> parameter to
…		…
200	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>	232	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>
201	and behaves exactly the same way (e.g. it has to provide a	233	and behaves exactly the same way (e.g. it has to provide a
202	timeout). See the description for the C<$prepare_cb> argument of	234	timeout). See the description for the C<$prepare_cb> argument of
203	C<AnyEvent::Socket::tcp_connect> for details.	235	C<AnyEvent::Socket::tcp_connect> for details.
204		236
		237	=item tcp_connect => $callback->($host, $service, $connect_cb, $prepare_cb)
		238
		239	In even rarer cases you want total control over how AnyEvent::HTTP
		240	establishes connections. Normally it uses L<AnyEvent::Socket::tcp_connect>
		241	to do this, but you can provide your own C<tcp_connect> function -
		242	obviously, it has to follow the same calling conventions, except that it
		243	may always return a connection guard object.
		244
		245	There are probably lots of weird uses for this function, starting from
		246	tracing the hosts C<http_request> actually tries to connect, to (inexact
		247	but fast) host => IP address caching or even socks protocol support.
		248
205	=item on_header => $callback->($headers)	249	=item on_header => $callback->($headers)
206		250
207	When specified, this callback will be called with the header hash as soon	251	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	252	as headers have been successfully received from the remote server (not on
209	locally-generated errors).	253	locally-generated errors).
…		…
214		258
215	This callback is useful, among other things, to quickly reject unwanted	259	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	260	content, which, if it is supposed to be rare, can be faster than first
217	doing a C<HEAD> request.	261	doing a C<HEAD> request.
218		262
		263	The downside is that cancelling the request makes it impossible to re-use
		264	the connection. Also, the C<on_header> callback will not receive any
		265	trailer (headers sent after the response body).
		266
219	Example: cancel the request unless the content-type is "text/html".	267	Example: cancel the request unless the content-type is "text/html".
220		268
221	on_header => sub {	269	on_header => sub {
222	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	270	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
223	},	271	},
…		…
229	string instead of the body data.	277	string instead of the body data.
230		278
231	It has to return either true (in which case AnyEvent::HTTP will continue),	279	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	280	or false, in which case AnyEvent::HTTP will cancel the download (and call
233	the completion callback with an error code of C<598>).	281	the completion callback with an error code of C<598>).
		282
		283	The downside to cancelling the request is that it makes it impossible to
		284	re-use the connection.
234		285
235	This callback is useful when the data is too large to be held in memory	286	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	287	(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.	288	be extracted, or when the body should be processed incrementally.
238		289
…		…
264	If you think you need this, first have a look at C<on_body>, to see if	315	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.	316	that doesn't solve your problem in a better way.
266		317
267	=back	318	=back
268		319
269	Example: make a simple HTTP GET request for http://www.nethype.de/	320	Example: do a simple HTTP GET request for http://www.nethype.de/ and print
		321	the response body.
270		322
271	http_request GET => "http://www.nethype.de/", sub {	323	http_request GET => "http://www.nethype.de/", sub {
272	my ($body, $hdr) = @_;	324	my ($body, $hdr) = @_;
273	print "$body\n";	325	print "$body\n";
274	};	326	};
275		327
276	Example: make a HTTP HEAD request on https://www.google.com/, use a	328	Example: do a HTTP HEAD request on https://www.google.com/, use a
277	timeout of 30 seconds.	329	timeout of 30 seconds.
278		330
279	http_request	331	http_request
280	GET => "https://www.google.com",	332	GET => "https://www.google.com",
281	timeout => 30,	333	timeout => 30,
…		…
284	use Data::Dumper;	336	use Data::Dumper;
285	print Dumper $hdr;	337	print Dumper $hdr;
286	}	338	}
287	;	339	;
288		340
289	Example: make another simple HTTP GET request, but immediately try to	341	Example: do another simple HTTP GET request, but immediately try to
290	cancel it.	342	cancel it.
291		343
292	my $request = http_request GET => "http://www.nethype.de/", sub {	344	my $request = http_request GET => "http://www.nethype.de/", sub {
293	my ($body, $hdr) = @_;	345	my ($body, $hdr) = @_;
294	print "$body\n";	346	print "$body\n";
…		…
326	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	378	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
327		379
328	_slot_schedule $_[0];	380	_slot_schedule $_[0];
329	}	381	}
330		382
331	our $qr_nl = qr{\015?\012};	383	# extract cookies from jar
		384	sub cookie_jar_extract($$$$) {
		385	my ($jar, $uscheme, $uhost, $upath) = @_;
		386
		387	%$jar = () if $jar->{version} != 1;
		388
		389	my @cookies;
		390
		391	while (my ($chost, $paths) = each %$jar) {
		392	next unless ref $paths;
		393
		394	if ($chost =~ /^\./) {
		395	next unless $chost eq substr $uhost, -length $chost;
		396	} elsif ($chost =~ /\./) {
		397	next unless $chost eq $uhost;
		398	} else {
		399	next;
		400	}
		401
		402	while (my ($cpath, $cookies) = each %$paths) {
		403	next unless $cpath eq substr $upath, 0, length $cpath;
		404
		405	while (my ($cookie, $kv) = each %$cookies) {
		406	next if $uscheme ne "https" && exists $kv->{secure};
		407
		408	if (exists $kv->{expires}) {
		409	if (AE::now > parse_date ($kv->{expires})) {
		410	delete $cookies->{$cookie};
		411	next;
		412	}
		413	}
		414
		415	my $value = $kv->{value};
		416
		417	if ($value =~ /[=;,[:space:]]/) {
		418	$value =~ s/([\\"])/\\$1/g;
		419	$value = "\"$value\"";
		420	}
		421
		422	push @cookies, "$cookie=$value";
		423	}
		424	}
		425	}
		426
		427	\@cookies
		428	}
		429
		430	# parse set_cookie header into jar
		431	sub cookie_jar_set_cookie($$$) {
		432	my ($jar, $set_cookie, $uhost) = @_;
		433
		434	for ($set_cookie) {
		435	# parse NAME=VALUE
		436	my @kv;
		437
		438	# expires is not http-compliant in the original cookie-spec,
		439	# we support the official date format and some extensions
		440	while (
		441	m{
		442	\G\s*
		443	(?:
		444	expires \s=\s ([A-Z][a-z][a-z]+,\ [^,;]+)
		445	\| ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )
		446	)
		447	}gcxsi
		448	) {
		449	my $name = $2;
		450	my $value = $4;
		451
		452	unless (defined $name) {
		453	# expires
		454	$name = "expires";
		455	$value = $1;
		456	} elsif (!defined $value) {
		457	# quoted
		458	$value = $3;
		459	$value =~ s/\\(.)/$1/gs;
		460	}
		461
		462	push @kv, lc $name, $value;
		463
		464	last unless /\G\s*;/gc;
		465	}
		466
		467	last unless @kv;
		468
		469	my $name = shift @kv;
		470	my %kv = (value => shift @kv, @kv);
		471
		472	$kv{expires} \|\|= format_date (AE::now + $kv{"max-age"})
		473	if exists $kv{"max-age"};
		474
		475	my $cdom;
		476	my $cpath = (delete $kv{path}) \|\| "/";
		477
		478	if (exists $kv{domain}) {
		479	$cdom = delete $kv{domain};
		480
		481	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		482
		483	next if $cdom =~ /\.$/;
		484
		485	# this is not rfc-like and not netscape-like. go figure.
		486	my $ndots = $cdom =~ y/.//;
		487	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		488	} else {
		489	$cdom = $uhost;
		490	}
		491
		492	# store it
		493	$jar->{version} = 1;
		494	$jar->{$cdom}{$cpath}{$name} = \%kv;
		495
		496	redo if /\G\s*,/gc;
		497	}
		498	}
		499
		500	# continue to parse $_ for headers and place them into the arg
		501	sub parse_hdr() {
		502	my %hdr;
		503
		504	# things seen, not parsed:
		505	# p3pP="NON CUR OTPi OUR NOR UNI"
		506
		507	$hdr{lc $1} .= ",$2"
		508	while /\G
		509	([^:\000-\037]*):
		510	[\011\040]*
		511	((?: [^\012]+ \| \012[\011\040] )*)
		512	\012
		513	/gxc;
		514
		515	/\G$/
		516	or return;
		517
		518	# remove the "," prefix we added to all headers above
		519	substr $_, 0, 1, ""
		520	for values %hdr;
		521
		522	\%hdr
		523	}
		524
332	our $qr_nlnl = qr{(?<![^\012])\015?\012};	525	our $qr_nlnl = qr{(?<![^\012])\015?\012};
333		526
334	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	527	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
335	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	528	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
336		529
…		…
349	while (my ($k, $v) = each %$hdr) {	542	while (my ($k, $v) = each %$hdr) {
350	$hdr{lc $k} = $v;	543	$hdr{lc $k} = $v;
351	}	544	}
352	}	545	}
353		546
		547	# pseudo headers for all subsequent responses
		548	my @pseudo = (URL => $url);
		549	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
		550
354	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	551	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
355		552
356	return $cb->(undef, { Status => 599, Reason => "Too many redirections", URL => $url })	553	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
357	if $recurse < 0;	554	if $recurse < 0;
358		555
359	my $proxy = $arg{proxy} \|\| $PROXY;	556	my $proxy = $arg{proxy} \|\| $PROXY;
360	my $timeout = $arg{timeout} \|\| $TIMEOUT;	557	my $timeout = $arg{timeout} \|\| $TIMEOUT;
361		558
362	my ($uscheme, $uauthority, $upath, $query, $fragment) =	559	my ($uscheme, $uauthority, $upath, $query, $fragment) =
363	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:\?([^#]))?(?:#(.))?\|;	560	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:(\?[^#]))?(?:#(.))?\|;
364		561
365	$uscheme = lc $uscheme;	562	$uscheme = lc $uscheme;
366		563
367	my $uport = $uscheme eq "http" ? 80	564	my $uport = $uscheme eq "http" ? 80
368	: $uscheme eq "https" ? 443	565	: $uscheme eq "https" ? 443
369	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", URL => $url });	566	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
370		567
371	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	568	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
372	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", URL => $url });	569	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
373		570
374	my $uhost = $1;	571	my $uhost = $1;
375	$uport = $2 if defined $2;	572	$uport = $2 if defined $2;
376		573
377	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost";	574	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
		575	unless exists $hdr{host};
378		576
379	$uhost =~ s/^\[(.*)\]$/$1/;	577	$uhost =~ s/^\[(.*)\]$/$1/;
380	$upath .= "?$query" if length $query;	578	$upath .= $query if length $query;
381		579
382	$upath =~ s%^/?%/%;	580	$upath =~ s%^/?%/%;
383		581
384	# cookie processing	582	# cookie processing
385	if (my $jar = $arg{cookie_jar}) {	583	if (my $jar = $arg{cookie_jar}) {
386	%$jar = () if $jar->{version} != 1;	584	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
387		585
388	my @cookie;
389
390	while (my ($chost, $v) = each %$jar) {
391	if ($chost =~ /^\./) {
392	next unless $chost eq substr $uhost, -length $chost;
393	} elsif ($chost =~ /\./) {
394	next unless $chost eq $uhost;
395	} else {
396	next;
397	}
398
399	while (my ($cpath, $v) = each %$v) {
400	next unless $cpath eq substr $upath, 0, length $cpath;
401
402	while (my ($k, $v) = each %$v) {
403	next if $uscheme ne "https" && exists $v->{secure};
404	my $value = $v->{value};
405	$value =~ s/([\\"])/\\$1/g;
406	push @cookie, "$k=\"$value\"";
407	}
408	}
409	}
410
411	$hdr{cookie} = join "; ", @cookie	586	$hdr{cookie} = join "; ", @$cookies
412	if @cookie;	587	if @$cookies;
413	}	588	}
414		589
415	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	590	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
416		591
417	if ($proxy) {	592	if ($proxy) {
…		…
425	} else {	600	} else {
426	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	601	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
427	}	602	}
428		603
429	# leave out fragment and query string, just a heuristic	604	# leave out fragment and query string, just a heuristic
430	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	605	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
431	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	606	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
432		607
433	$hdr{"content-length"} = length $arg{body};	608	$hdr{"content-length"} = length $arg{body}
		609	if length $arg{body} \|\| $method ne "GET";
		610
		611	$hdr{connection} = "close TE"; #1.1
		612	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
434		613
435	my %state = (connect_guard => 1);	614	my %state = (connect_guard => 1);
436		615
437	_get_slot $uhost, sub {	616	_get_slot $uhost, sub {
438	$state{slot_guard} = shift;	617	$state{slot_guard} = shift;
439		618
440	return unless $state{connect_guard};	619	return unless $state{connect_guard};
441		620
442	$state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {	621	my $ae_error = 595; # connecting
		622
		623	my $connect_cb = sub {
443	$state{fh} = shift	624	$state{fh} = shift
444	or do {	625	or do {
445	my $err = "$!";	626	my $err = "$!";
446	%state = ();	627	%state = ();
447	return $cb->(undef, { Status => 599, Reason => $err, URL => $url });	628	return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err });
448	};	629	};
449
450	pop; # free memory, save a tree
451		630
452	return unless delete $state{connect_guard};	631	return unless delete $state{connect_guard};
453		632
454	# get handle	633	# get handle
455	$state{handle} = new AnyEvent::Handle	634	$state{handle} = new AnyEvent::Handle
456	fh => $state{fh},	635	fh => $state{fh},
		636	peername => $rhost,
		637	tls_ctx => $arg{tls_ctx},
		638	# these need to be reconfigured on keepalive handles
457	timeout => $timeout,	639	timeout => $timeout,
458	peername => $rhost,	640	on_error => sub {
459	tls_ctx => $arg{tls_ctx};	641	%state = ();
		642	$cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] });
		643	},
		644	on_eof => sub {
		645	%state = ();
		646	$cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" });
		647	},
		648	;
460		649
461	# limit the number of persistent connections	650	# limit the number of persistent connections
462	# keepalive not yet supported	651	# keepalive not yet supported
463	if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	652	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
464	++$KA_COUNT{$_[1]};	653	# ++$KA_COUNT{$_[1]};
465	$state{handle}{ka_count_guard} = AnyEvent::Util::guard {	654	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
466	--$KA_COUNT{$_[1]}	655	# --$KA_COUNT{$_[1]}
467	};	656	# };
468	$hdr{connection} = "keep-alive";	657	# $hdr{connection} = "keep-alive";
469	} else {
470	delete $hdr{connection};
471	}	658	# }
472
473	# (re-)configure handle
474	$state{handle}->on_error (sub {
475	%state = ();
476	$cb->(undef, { Status => 599, Reason => $_[2], URL => $url });
477	});
478	$state{handle}->on_eof (sub {
479	%state = ();
480	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", URL => $url });
481	});
482		659
483	$state{handle}->starttls ("connect") if $rscheme eq "https";	660	$state{handle}->starttls ("connect") if $rscheme eq "https";
484		661
485	# handle actual, non-tunneled, request	662	# handle actual, non-tunneled, request
486	my $handle_actual_request = sub {	663	my $handle_actual_request = sub {
		664	$ae_error = 596; # request phase
		665
487	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	666	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
488		667
489	# send request	668	# send request
490	$state{handle}->push_write (	669	$state{handle}->push_write (
491	"$method $rpath HTTP/1.0\015\012"	670	"$method $rpath HTTP/1.1\015\012"
492	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	671	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
493	. "\015\012"	672	. "\015\012"
494	. (delete $arg{body})	673	. (delete $arg{body})
495	);	674	);
496		675
		676	# return if error occured during push_write()
		677	return unless %state;
		678
497	%hdr = (); # reduce memory usage, save a kitten	679	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
498		680
499	# status line	681	# status line and headers
500	$state{handle}->push_read (line => $qr_nl, sub {	682	$state{read_response} = sub {
501	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
502	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", URL => $url }));
503
504	my %hdr = ( # response headers
505	HTTPVersion => ",$1",
506	Status => ",$2",
507	Reason => ",$3",
508	URL => ",$url"
509	);
510
511	# headers, could be optimized a bit
512	$state{handle}->unshift_read (line => $qr_nlnl, sub {
513	for ("$_[1]") {	683	for ("$_[1]") {
514	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	684	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
515		685
516	# things seen, not parsed:	686	/^HTTP\/0([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]) )? \012/gxci
517	# p3pP="NON CUR OTPi OUR NOR UNI"	687	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
518		688
519	$hdr{lc $1} .= ",$2"	689	# 100 Continue handling
520	while /\G	690	# should not happen as we don't send expect: 100-continue,
521	([^:\000-\037]*):	691	# but we handle it just in case.
522	[\011\040]*	692	# since we send the request body regardless, if we get an error
523	((?: [^\012]+ \| \012[\011\040] )*)	693	# we are out of-sync, which we currently do NOT handle correctly.
524	\012	694	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
525	/gxc;	695	if $2 eq 100;
526		696
		697	push @pseudo,
		698	HTTPVersion => $1,
		699	Status => $2,
		700	Reason => $3,
527	/\G$/	701	;
		702
		703	my $hdr = parse_hdr
528	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", URL => $url }));	704	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		705
		706	%hdr = (%$hdr, @pseudo);
		707	}
		708
		709	# redirect handling
		710	# microsoft and other shitheads don't give a shit for following standards,
		711	# try to support some common forms of broken Location headers.
		712	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		713	$hdr{location} =~ s/^\.\/+//;
		714
		715	my $url = "$rscheme://$uhost:$uport";
		716
		717	unless ($hdr{location} =~ s/^\///) {
		718	$url .= $upath;
		719	$url =~ s/\/[^\/]*$//;
529	}	720	}
530		721
531	substr $_, 0, 1, ""	722	$hdr{location} = "$url/$hdr{location}";
532	for values %hdr;	723	}
533		724
		725	my $redirect;
		726
		727	if ($recurse) {
		728	my $status = $hdr{Status};
		729
		730	# industry standard is to redirect POST as GET for
		731	# 301, 302 and 303, in contrast to HTTP/1.0 and 1.1.
		732	# also, the UA should ask the user for 301 and 307 and POST,
		733	# industry standard seems to be to simply follow.
		734	# we go with the industry standard.
		735	if ($status == 301 or $status == 302 or $status == 303) {
		736	# HTTP/1.1 is unclear on how to mutate the method
		737	$method = "GET" unless $method eq "HEAD";
534	# redirect handling	738	$redirect = 1;
535	# microsoft and other shitheads don't give a shit for following standards,	739	} elsif ($status == 307) {
536	# try to support some common forms of broken Location headers.	740	$redirect = 1;
537	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {	741	}
538	$hdr{location} =~ s/^\.\/+//;	742	}
539		743
540	my $url = "$rscheme://$uhost:$uport";	744	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
		745	my $may_keep_alive = $_[3];
541		746
542	unless ($hdr{location} =~ s/^\///) {	747	$state{handle}->destroy if $state{handle};
		748	%state = ();
		749
		750	if (defined $_[1]) {
		751	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		752	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		753	}
		754
		755	# set-cookie processing
		756	if ($arg{cookie_jar}) {
		757	cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost;
		758	}
		759
		760	if ($redirect && exists $hdr{location}) {
		761	# we ignore any errors, as it is very common to receive
		762	# Content-Length != 0 but no actual body
		763	# we also access %hdr, as $_[1] might be an erro
		764	http_request (
		765	$method => $hdr{location},
		766	%arg,
		767	recurse => $recurse - 1,
		768	Redirect => [$_[0], \%hdr],
		769	$cb);
		770	} else {
		771	$cb->($_[0], \%hdr);
		772	}
		773	};
		774
		775	$ae_error = 597; # body phase
		776
		777	my $len = $hdr{"content-length"};
		778
		779	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		780	$finish->(undef, 598 => "Request cancelled by on_header");
		781	} elsif (
		782	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		783	or $method eq "HEAD"
		784	or (defined $len && !$len)
		785	) {
		786	# no body
		787	$finish->("", undef, undef, 1);
		788	} else {
		789	# body handling, many different code paths
		790	# - no body expected
		791	# - want_body_handle
		792	# - te chunked
		793	# - 2x length known (with or without on_body)
		794	# - 2x length not known (with or without on_body)
		795	if (!$redirect && $arg{want_body_handle}) {
		796	$_[0]->on_eof (undef);
		797	$_[0]->on_error (undef);
		798	$_[0]->on_read (undef);
		799
		800	$finish->(delete $state{handle});
		801
		802	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		803	my $cl = 0;
		804	my $body = undef;
		805	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		806
		807	my $read_chunk; $read_chunk = sub {
		808	$_[1] =~ /^([0-9a-fA-F]+)/
		809	or $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		810
		811	my $len = hex $1;
		812
		813	if ($len) {
543	$url .= $upath;	814	$cl += $len;
544	$url =~ s/\/[^\/]*$//;	815
		816	$_[0]->push_read (chunk => $len, sub {
		817	$on_body->($_[1], \%hdr)
		818	or return $finish->(undef, 598 => "Request cancelled by on_body");
		819
		820	$_[0]->push_read (line => sub {
		821	length $_[1]
		822	and return $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		823	$_[0]->push_read (line => $read_chunk);
		824	});
		825	});
		826	} else {
		827	$hdr{"content-length"} \|\|= $cl;
		828
		829	$_[0]->push_read (line => $qr_nlnl, sub {
		830	if (length $_[1]) {
		831	for ("$_[1]") {
		832	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		833
		834	my $hdr = parse_hdr
		835	or return $finish->(undef, $ae_error => "Garbled response trailers");
		836
		837	%hdr = (%hdr, %$hdr);
		838	}
		839	}
		840
		841	$finish->($body, undef, undef, 1);
		842	});
		843	}
		844	};
		845
		846	$_[0]->push_read (line => $read_chunk);
		847
		848	} elsif ($arg{on_body}) {
		849	if ($len) {
		850	$_[0]->on_read (sub {
		851	$len -= length $_[0]{rbuf};
		852
		853	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		854	or return $finish->(undef, 598 => "Request cancelled by on_body");
		855
		856	$len > 0
		857	or $finish->("", undef, undef, 1);
		858	});
		859	} else {
		860	$_[0]->on_eof (sub {
		861	$finish->("");
		862	});
		863	$_[0]->on_read (sub {
		864	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		865	or $finish->(undef, 598 => "Request cancelled by on_body");
		866	});
545	}	867	}
546
547	$hdr{location} = "$url/$hdr{location}";
548	}	868	} else {
		869	$_[0]->on_eof (undef);
549		870
550	my $redirect;
551
552	if ($recurse) {	871	if ($len) {
553	if ($hdr{Status} =~ /^30[12]$/ && $method ne "POST") {	872	$_[0]->on_read (sub {
554	# apparently, mozilla et al. just change POST to GET here	873	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
555	# more research is needed before we do the same	874	if $len <= length $_[0]{rbuf};
556	$redirect = 1;	875	});
557	} elsif ($hdr{Status} == 303) {	876	} else {
558	# even http/1.1 is unclear on how to mutate the method	877	$_[0]->on_error (sub {
559	$method = "GET" unless $method eq "HEAD";	878	($! == Errno::EPIPE \|\| !$!)
		879	? $finish->(delete $_[0]{rbuf})
		880	: $finish->(undef, $ae_error => $_[2]);
560	$redirect = 1;	881	});
561	} elsif ($hdr{Status} == 307 && $method =~ /^(?:GET\|HEAD)$/) {	882	$_[0]->on_read (sub { });
562	$redirect = 1;
563	}	883	}
564	}	884	}
565
566	my $finish = sub {
567	$state{handle}->destroy if $state{handle};
568	%state = ();
569
570	# set-cookie processing
571	if ($arg{cookie_jar}) {
572	for ($_[1]{"set-cookie"}) {
573	# parse NAME=VALUE
574	my @kv;
575
576	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
577	my $name = $1;
578	my $value = $3;
579
580	unless ($value) {
581	$value = $2;
582	$value =~ s/\\(.)/$1/gs;
583	}
584
585	push @kv, $name => $value;
586
587	last unless /\G\s*;/gc;
588	}
589
590	last unless @kv;
591
592	my $name = shift @kv;
593	my %kv = (value => shift @kv, @kv);
594
595	my $cdom;
596	my $cpath = (delete $kv{path}) \|\| "/";
597
598	if (exists $kv{domain}) {
599	$cdom = delete $kv{domain};
600
601	$cdom =~ s/^\.?/./; # make sure it starts with a "."
602
603	next if $cdom =~ /\.$/;
604
605	# this is not rfc-like and not netscape-like. go figure.
606	my $ndots = $cdom =~ y/.//;
607	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
608	} else {
609	$cdom = $uhost;
610	}
611
612	# store it
613	$arg{cookie_jar}{version} = 1;
614	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
615
616	redo if /\G\s*,/gc;
617	}
618	}
619
620	if ($redirect && exists $hdr{location}) {
621	# we ignore any errors, as it is very common to receive
622	# Content-Length != 0 but no actual body
623	# we also access %hdr, as $_[1] might be an erro
624	http_request ($method => $hdr{location}, %arg, recurse => $recurse - 1, $cb);
625	} else {
626	$cb->($_[0], $_[1]);
627	}
628	};
629
630	my $len = $hdr{"content-length"};
631
632	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
633	$finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", URL => $url });
634	} elsif (
635	$hdr{Status} =~ /^(?:1..\|[23]04)$/
636	or $method eq "HEAD"
637	or (defined $len && !$len)
638	) {
639	# no body
640	$finish->("", \%hdr);
641	} else {
642	# body handling, four different code paths
643	# for want_body_handle, on_body (2x), normal (2x)
644	# we might read too much here, but it does not matter yet (no pers. connections)
645	if (!$redirect && $arg{want_body_handle}) {
646	$_[0]->on_eof (undef);
647	$_[0]->on_error (undef);
648	$_[0]->on_read (undef);
649
650	$finish->(delete $state{handle}, \%hdr);
651
652	} elsif ($arg{on_body}) {
653	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
654	if ($len) {
655	$_[0]->on_eof (undef);
656	$_[0]->on_read (sub {
657	$len -= length $_[0]{rbuf};
658
659	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
660	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
661
662	$len > 0
663	or $finish->("", \%hdr);
664	});
665	} else {
666	$_[0]->on_eof (sub {
667	$finish->("", \%hdr);
668	});
669	$_[0]->on_read (sub {
670	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
671	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
672	});
673	}
674	} else {
675	$_[0]->on_eof (undef);
676
677	if ($len) {
678	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
679	$_[0]->on_read (sub {
680	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
681	if $len <= length $_[0]{rbuf};
682	});
683	} else {
684	$_[0]->on_error (sub {
685	$! == Errno::EPIPE \|\| !$!
686	? $finish->(delete $_[0]{rbuf}, \%hdr)
687	: $finish->(undef, { Status => 599, Reason => $_[2], URL => $url });
688	});
689	$_[0]->on_read (sub { });
690	}
691	}
692	}
693	});	885	}
694	});	886	};
		887
		888	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
695	};	889	};
696		890
697	# now handle proxy-CONNECT method	891	# now handle proxy-CONNECT method
698	if ($proxy && $uscheme eq "https") {	892	if ($proxy && $uscheme eq "https") {
699	# oh dear, we have to wrap it into a connect request	893	# oh dear, we have to wrap it into a connect request
700		894
701	# maybe re-use $uauthority with patched port?	895	# maybe re-use $uauthority with patched port?
702	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");	896	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
703	$state{handle}->push_read (line => $qr_nlnl, sub {	897	$state{handle}->push_read (line => $qr_nlnl, sub {
704	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	898	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
705	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", URL => $url }));	899	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
706		900
707	if ($2 == 200) {	901	if ($2 == 200) {
708	$rpath = $upath;	902	$rpath = $upath;
709	&$handle_actual_request;	903	&$handle_actual_request;
710	} else {	904	} else {
711	%state = ();	905	%state = ();
712	$cb->(undef, { Status => $2, Reason => $3, URL => $url });	906	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
713	}	907	}
714	});	908	});
715	} else {	909	} else {
716	&$handle_actual_request;	910	&$handle_actual_request;
717	}	911	}
		912	};
718		913
719	}, $arg{on_prepare} \|\| sub { $timeout };	914	my $tcp_connect = $arg{tcp_connect}
		915	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		916
		917	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		918
720	};	919	};
721		920
722	defined wantarray && AnyEvent::Util::guard { %state = () }	921	defined wantarray && AnyEvent::Util::guard { %state = () }
723	}	922	}
724		923
…		…
738	&http_request	937	&http_request
739	}	938	}
740		939
741	=back	940	=back
742		941
		942	=head2 DNS CACHING
		943
		944	AnyEvent::HTTP uses the AnyEvent::Socket::tcp_connect function for
		945	the actual connection, which in turn uses AnyEvent::DNS to resolve
		946	hostnames. The latter is a simple stub resolver and does no caching
		947	on its own. If you want DNS caching, you currently have to provide
		948	your own default resolver (by storing a suitable resolver object in
		949	C<$AnyEvent::DNS::RESOLVER>).
		950
743	=head2 GLOBAL FUNCTIONS AND VARIABLES	951	=head2 GLOBAL FUNCTIONS AND VARIABLES
744		952
745	=over 4	953	=over 4
746		954
747	=item AnyEvent::HTTP::set_proxy "proxy-url"	955	=item AnyEvent::HTTP::set_proxy "proxy-url"
…		…
750	string of the form C<http://host:port> (optionally C<https:...>), croaks	958	string of the form C<http://host:port> (optionally C<https:...>), croaks
751	otherwise.	959	otherwise.
752		960
753	To clear an already-set proxy, use C<undef>.	961	To clear an already-set proxy, use C<undef>.
754		962
		963	=item $date = AnyEvent::HTTP::format_date $timestamp
		964
		965	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
		966	Date (RFC 2616).
		967
		968	=item $timestamp = AnyEvent::HTTP::parse_date $date
		969
		970	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) or a
		971	bunch of minor variations of those, and returns the corresponding POSIX
		972	timestamp, or C<undef> if the date cannot be parsed.
		973
755	=item $AnyEvent::HTTP::MAX_RECURSE	974	=item $AnyEvent::HTTP::MAX_RECURSE
756		975
757	The default value for the C<recurse> request parameter (default: C<10>).	976	The default value for the C<recurse> request parameter (default: C<10>).
758		977
759	=item $AnyEvent::HTTP::USERAGENT	978	=item $AnyEvent::HTTP::USERAGENT
…		…
777	connections. This number of can be useful for load-leveling.	996	connections. This number of can be useful for load-leveling.
778		997
779	=back	998	=back
780		999
781	=cut	1000	=cut
		1001
		1002	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		1003	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		1004
		1005	sub format_date($) {
		1006	my ($time) = @_;
		1007
		1008	# RFC 822/1123 format
		1009	my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time;
		1010
		1011	sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT",
		1012	$weekday[$wday], $mday, $month[$mon], $year + 1900,
		1013	$H, $M, $S;
		1014	}
		1015
		1016	sub parse_date($) {
		1017	my ($date) = @_;
		1018
		1019	my ($d, $m, $y, $H, $M, $S);
		1020
		1021	if ($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$/) {
		1022	# RFC 822/1123, required by RFC 2616 (with " ")
		1023	# cookie dates (with "-")
		1024
		1025	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
		1026
		1027	} elsif ($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]?) GMT$/) {
		1028	# RFC 850
		1029	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
		1030
		1031	} elsif ($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])$/) {
		1032	# ISO C's asctime
		1033	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
		1034	}
		1035	# other formats fail in the loop below
		1036
		1037	for (0..11) {
		1038	if ($m eq $month[$_]) {
		1039	require Time::Local;
		1040	return Time::Local::timegm ($S, $M, $H, $d, $_, $y);
		1041	}
		1042	}
		1043
		1044	undef
		1045	}
782		1046
783	sub set_proxy($) {	1047	sub set_proxy($) {
784	if (length $_[0]) {	1048	if (length $_[0]) {
785	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix	1049	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
786	or Carp::croak "$_[0]: invalid proxy URL";	1050	or Carp::croak "$_[0]: invalid proxy URL";
…		…
793	# initialise proxy from environment	1057	# initialise proxy from environment
794	eval {	1058	eval {
795	set_proxy $ENV{http_proxy};	1059	set_proxy $ENV{http_proxy};
796	};	1060	};
797		1061
		1062	=head2 SOCKS PROXIES
		1063
		1064	Socks proxies are not directly supported by AnyEvent::HTTP. You can
		1065	compile your perl to support socks, or use an external program such as
		1066	F<socksify> (dante) or F<tsocks> to make your program use a socks proxy
		1067	transparently.
		1068
		1069	Alternatively, for AnyEvent::HTTP only, you can use your own
		1070	C<tcp_connect> function that does the proxy handshake - here is an example
		1071	that works with socks4a proxies:
		1072
		1073	use Errno;
		1074	use AnyEvent::Util;
		1075	use AnyEvent::Socket;
		1076	use AnyEvent::Handle;
		1077
		1078	# host, port and username of/for your socks4a proxy
		1079	my $socks_host = "10.0.0.23";
		1080	my $socks_port = 9050;
		1081	my $socks_user = "";
		1082
		1083	sub socks4a_connect {
		1084	my ($host, $port, $connect_cb, $prepare_cb) = @_;
		1085
		1086	my $hdl = new AnyEvent::Handle
		1087	connect => [$socks_host, $socks_port],
		1088	on_prepare => sub { $prepare_cb->($_[0]{fh}) },
		1089	on_error => sub { $connect_cb->() },
		1090	;
		1091
		1092	$hdl->push_write (pack "CCnNZZ", 4, 1, $port, 1, $socks_user, $host);
		1093
		1094	$hdl->push_read (chunk => 8, sub {
		1095	my ($hdl, $chunk) = @_;
		1096	my ($status, $port, $ipn) = unpack "xCna4", $chunk;
		1097
		1098	if ($status == 0x5a) {
		1099	$connect_cb->($hdl->{fh}, (format_address $ipn) . ":$port");
		1100	} else {
		1101	$! = Errno::ENXIO; $connect_cb->();
		1102	}
		1103	});
		1104
		1105	$hdl
		1106	}
		1107
		1108	Use C<socks4a_connect> instead of C<tcp_connect> when doing C<http_request>s,
		1109	possibly after switching off other proxy types:
		1110
		1111	AnyEvent::HTTP::set_proxy undef; # usually you do not want other proxies
		1112
		1113	http_get 'http://www.google.com', tcp_connect => \&socks4a_connect, sub {
		1114	my ($data, $headers) = @_;
		1115	...
		1116	};
		1117
798	=head1 SEE ALSO	1118	=head1 SEE ALSO
799		1119
800	L<AnyEvent>.	1120	L<AnyEvent>.
801		1121
802	=head1 AUTHOR	1122	=head1 AUTHOR

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.52 by root, Sat Sep 26 10:13:12 2009 UTC vs. Revision 1.79 by root, Sat Jan 1 20:01:07 2011 UTC

Diff Legend

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.52 by root, Sat Sep 26 10:13:12 2009 UTC vs.
Revision 1.79 by root, Sat Jan 1 20:01:07 2011 UTC