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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.59 by root, Wed Dec 29 23:59:36 2010 UTC vs.
Revision 1.81 by root, Sun Jan 2 01:20:17 2011 UTC

…		…
47	use AnyEvent::Util ();	47	use AnyEvent::Util ();
48	use AnyEvent::Handle ();	48	use AnyEvent::Handle ();
49		49
50	use base Exporter::;	50	use base Exporter::;
51		51
52	our $VERSION = '1.46';	52	our $VERSION = '1.5';
53		53
54	our @EXPORT = qw(http_get http_post http_head http_request);	54	our @EXPORT = qw(http_get http_post http_head http_request);
55		55
56	our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";	56	our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";
57	our $MAX_RECURSE = 10;	57	our $MAX_RECURSE = 10;
…		…
94	C<http_request> returns a "cancellation guard" - you have to keep the	94	C<http_request> returns a "cancellation guard" - you have to keep the
95	object at least alive until the callback get called. If the object gets	95	object at least alive until the callback get called. If the object gets
96	destroyed before the callback is called, the request will be cancelled.	96	destroyed before the callback is called, the request will be cancelled.
97		97
98	The callback will be called with the response body data as first argument	98	The callback will be called with the response body data as first argument
99	(or C<undef> if an error occured), and a hash-ref with response headers as	99	(or C<undef> if an error occured), and a hash-ref with response headers
100	second argument.	100	(and trailers) as second argument.
101		101
102	All the headers in that hash are lowercased. In addition to the response	102	All the headers in that hash are lowercased. In addition to the response
103	headers, the "pseudo-headers" (uppercase to avoid clashing with possible	103	headers, the "pseudo-headers" (uppercase to avoid clashing with possible
104	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the	104	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the
105	three parts of the HTTP Status-Line of the same name.	105	three parts of the HTTP Status-Line of the same name. If an error occurs
		106	during the body phase of a request, then the original C<Status> and
		107	C<Reason> values from the header are available as C<OrigStatus> and
		108	C<OrigReason>.
106		109
107	The pseudo-header C<URL> contains the actual URL (which can differ from	110	The pseudo-header C<URL> contains the actual URL (which can differ from
108	the requested URL when following redirects - for example, you might get	111	the requested URL when following redirects - for example, you might get
109	an error that your URL scheme is not supported even though your URL is a	112	an error that your URL scheme is not supported even though your URL is a
110	valid http URL because it redirected to an ftp URL, in which case you can	113	valid http URL because it redirected to an ftp URL, in which case you can
…		…
119		122
120	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
121	joined together with a comma (C<,>), as per the HTTP spec.	124	joined together with a comma (C<,>), as per the HTTP spec.
122		125
123	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,
124	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<59x>	127	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be
125	(usually C<599>) and the C<Reason> pseudo-header will contain an error	128	C<590>-C<599> and the C<Reason> pseudo-header will contain an error
126	message.	129	message. Currently the following status codes are used:
		130
		131	=over 4
		132
		133	=item 595 - errors during connection etsbalishment, proxy handshake.
		134
		135	=item 596 - errors during TLS negotiation, request sending and header processing.
		136
		137	=item 597 - errors during body receiving or processing.
		138
		139	=item 598 - user aborted request via C<on_header> or C<on_body>.
		140
		141	=item 599 - other, usually nonretryable, errors (garbled URL etc.).
		142
		143	=back
127		144
128	A typical callback might look like this:	145	A typical callback might look like this:
129		146
130	sub {	147	sub {
131	my ($body, $hdr) = @_;	148	my ($body, $hdr) = @_;
…		…
147	Whether to recurse requests or not, e.g. on redirects, authentication	164	Whether to recurse requests or not, e.g. on redirects, authentication
148	retries and so on, and how often to do so.	165	retries and so on, and how often to do so.
149		166
150	=item headers => hashref	167	=item headers => hashref
151		168
152	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
153	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
154	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:>
155	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
156	sent at all).	173	they won't be sent at all).
157		174
158	=item timeout => $seconds	175	=item timeout => $seconds
159		176
160	The time-out to use for various stages - each connect attempt will reset	177	The time-out to use for various stages - each connect attempt will reset
161	the timeout, as will read or write activity, i.e. this is not an overall	178	the timeout, as will read or write activity, i.e. this is not an overall
…		…
171	C<$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
172	HTTPS.	189	HTTPS.
173		190
174	=item body => $string	191	=item body => $string
175		192
176	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
177	this module might offer more options).	194	this module might offer more options).
178		195
179	=item cookie_jar => $hash_ref	196	=item cookie_jar => $hash_ref
180		197
181	Passing this parameter enables (simplified) cookie-processing, loosely	198	Passing this parameter enables (simplified) cookie-processing, loosely
182	based on the original netscape specification.	199	based on the original netscape specification.
183		200
184	The C<$hash_ref> must be an (initially empty) hash reference which will	201	The C<$hash_ref> must be an (initially empty) hash reference which
185	get updated automatically. It is possible to save the cookie_jar to	202	will get updated automatically. It is possible to save the cookie jar
186	persistent storage with something like JSON or Storable, but this is not	203	to persistent storage with something like JSON or Storable - see the
187	recommended, as expiry times are currently being ignored.	204	C<AnyEvent::HTTP::cookie_jar_expire> function if you wish to remove
		205	expired or session-only cookies, and also for documentation on the format
		206	of the cookie jar.
188		207
189	Note that this cookie implementation is not of very high quality, nor	208	Note that this cookie implementation is not meant to be complete. If
190	meant to be complete. If you want complete cookie management you have to	209	you want complete cookie management you have to do that on your
191	do that on your own. C<cookie_jar> is meant as a quick fix to get some	210	own. C<cookie_jar> is meant as a quick fix to get most cookie-using sites
192	cookie-using sites working. Cookies are a privacy disaster, do not use	211	working. Cookies are a privacy disaster, do not use them unless required
193	them unless required to.	212	to.
		213
		214	When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:>
		215	headers will be set and handled by this module, otherwise they will be
		216	left untouched.
194		217
195	=item tls_ctx => $scheme \| $tls_ctx	218	=item tls_ctx => $scheme \| $tls_ctx
196		219
197	Specifies the AnyEvent::TLS context to be used for https connections. This	220	Specifies the AnyEvent::TLS context to be used for https connections. This
198	parameter follows the same rules as the C<tls_ctx> parameter to	221	parameter follows the same rules as the C<tls_ctx> parameter to
…		…
216	=item tcp_connect => $callback->($host, $service, $connect_cb, $prepare_cb)	239	=item tcp_connect => $callback->($host, $service, $connect_cb, $prepare_cb)
217		240
218	In even rarer cases you want total control over how AnyEvent::HTTP	241	In even rarer cases you want total control over how AnyEvent::HTTP
219	establishes connections. Normally it uses L<AnyEvent::Socket::tcp_connect>	242	establishes connections. Normally it uses L<AnyEvent::Socket::tcp_connect>
220	to do this, but you can provide your own C<tcp_connect> function -	243	to do this, but you can provide your own C<tcp_connect> function -
221	obviously, it has to follow the same calling conventions.	244	obviously, it has to follow the same calling conventions, except that it
		245	may always return a connection guard object.
222		246
223	There are probably lots of weird uses for this function, starting from	247	There are probably lots of weird uses for this function, starting from
224	tracing the hosts C<http_request> actually tries to connect, to (inexact	248	tracing the hosts C<http_request> actually tries to connect, to (inexact
225	but fast) host => IP address caching or even socks protocol support.	249	but fast) host => IP address caching or even socks protocol support.
226		250
…		…
236		260
237	This callback is useful, among other things, to quickly reject unwanted	261	This callback is useful, among other things, to quickly reject unwanted
238	content, which, if it is supposed to be rare, can be faster than first	262	content, which, if it is supposed to be rare, can be faster than first
239	doing a C<HEAD> request.	263	doing a C<HEAD> request.
240		264
		265	The downside is that cancelling the request makes it impossible to re-use
		266	the connection. Also, the C<on_header> callback will not receive any
		267	trailer (headers sent after the response body).
		268
241	Example: cancel the request unless the content-type is "text/html".	269	Example: cancel the request unless the content-type is "text/html".
242		270
243	on_header => sub {	271	on_header => sub {
244	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	272	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
245	},	273	},
…		…
251	string instead of the body data.	279	string instead of the body data.
252		280
253	It has to return either true (in which case AnyEvent::HTTP will continue),	281	It has to return either true (in which case AnyEvent::HTTP will continue),
254	or false, in which case AnyEvent::HTTP will cancel the download (and call	282	or false, in which case AnyEvent::HTTP will cancel the download (and call
255	the completion callback with an error code of C<598>).	283	the completion callback with an error code of C<598>).
		284
		285	The downside to cancelling the request is that it makes it impossible to
		286	re-use the connection.
256		287
257	This callback is useful when the data is too large to be held in memory	288	This callback is useful when the data is too large to be held in memory
258	(so the callback writes it to a file) or when only some information should	289	(so the callback writes it to a file) or when only some information should
259	be extracted, or when the body should be processed incrementally.	290	be extracted, or when the body should be processed incrementally.
260		291
…		…
286	If you think you need this, first have a look at C<on_body>, to see if	317	If you think you need this, first have a look at C<on_body>, to see if
287	that doesn't solve your problem in a better way.	318	that doesn't solve your problem in a better way.
288		319
289	=back	320	=back
290		321
291	Example: make a simple HTTP GET request for http://www.nethype.de/	322	Example: do a simple HTTP GET request for http://www.nethype.de/ and print
		323	the response body.
292		324
293	http_request GET => "http://www.nethype.de/", sub {	325	http_request GET => "http://www.nethype.de/", sub {
294	my ($body, $hdr) = @_;	326	my ($body, $hdr) = @_;
295	print "$body\n";	327	print "$body\n";
296	};	328	};
297		329
298	Example: make a HTTP HEAD request on https://www.google.com/, use a	330	Example: do a HTTP HEAD request on https://www.google.com/, use a
299	timeout of 30 seconds.	331	timeout of 30 seconds.
300		332
301	http_request	333	http_request
302	GET => "https://www.google.com",	334	GET => "https://www.google.com",
303	timeout => 30,	335	timeout => 30,
…		…
306	use Data::Dumper;	338	use Data::Dumper;
307	print Dumper $hdr;	339	print Dumper $hdr;
308	}	340	}
309	;	341	;
310		342
311	Example: make another simple HTTP GET request, but immediately try to	343	Example: do another simple HTTP GET request, but immediately try to
312	cancel it.	344	cancel it.
313		345
314	my $request = http_request GET => "http://www.nethype.de/", sub {	346	my $request = http_request GET => "http://www.nethype.de/", sub {
315	my ($body, $hdr) = @_;	347	my ($body, $hdr) = @_;
316	print "$body\n";	348	print "$body\n";
…		…
348	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	380	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
349		381
350	_slot_schedule $_[0];	382	_slot_schedule $_[0];
351	}	383	}
352		384
		385	#############################################################################
		386
		387	# expire cookies
		388	sub cookie_jar_expire($;$) {
		389	my ($jar, $session_end) = @_;
		390
		391	%$jar = () if $jar->{version} != 1;
		392
		393	my $anow = AE::now;
		394
		395	while (my ($chost, $paths) = each %$jar) {
		396	next unless ref $paths;
		397
		398	while (my ($cpath, $cookies) = each %$paths) {
		399	while (my ($cookie, $kv) = each %$cookies) {
		400	if (exists $kv->{_expires}) {
		401	delete $cookies->{$cookie}
		402	if $anow > $kv->{_expires};
		403	} elsif ($session_end) {
		404	delete $cookies->{$cookie};
		405	}
		406	}
		407
		408	delete $paths->{$cpath}
		409	unless %$cookies;
		410	}
		411
		412	delete $jar->{$chost}
		413	unless %$paths;
		414	}
		415	}
		416
		417	# extract cookies from jar
		418	sub cookie_jar_extract($$$$) {
		419	my ($jar, $uscheme, $uhost, $upath) = @_;
		420
		421	%$jar = () if $jar->{version} != 1;
		422
		423	my @cookies;
		424
		425	while (my ($chost, $paths) = each %$jar) {
		426	next unless ref $paths;
		427
		428	if ($chost =~ /^\./) {
		429	next unless $chost eq substr $uhost, -length $chost;
		430	} elsif ($chost =~ /\./) {
		431	next unless $chost eq $uhost;
		432	} else {
		433	next;
		434	}
		435
		436	while (my ($cpath, $cookies) = each %$paths) {
		437	next unless $cpath eq substr $upath, 0, length $cpath;
		438
		439	while (my ($cookie, $kv) = each %$cookies) {
		440	next if $uscheme ne "https" && exists $kv->{secure};
		441
		442	if (exists $kv->{_expires} and AE::now > $kv->{_expires}) {
		443	delete $cookies->{$cookie};
		444	next;
		445	}
		446
		447	my $value = $kv->{value};
		448
		449	if ($value =~ /[=;,[:space:]]/) {
		450	$value =~ s/([\\"])/\\$1/g;
		451	$value = "\"$value\"";
		452	}
		453
		454	push @cookies, "$cookie=$value";
		455	}
		456	}
		457	}
		458
		459	\@cookies
		460	}
		461
		462	# parse set_cookie header into jar
		463	sub cookie_jar_set_cookie($$$$) {
		464	my ($jar, $set_cookie, $uhost, $date) = @_;
		465
		466	my $anow = int AE::now;
		467	my $snow; # server-now
		468
		469	for ($set_cookie) {
		470	# parse NAME=VALUE
		471	my @kv;
		472
		473	# expires is not http-compliant in the original cookie-spec,
		474	# we support the official date format and some extensions
		475	while (
		476	m{
		477	\G\s*
		478	(?:
		479	expires \s=\s ([A-Z][a-z][a-z]+,\ [^,;]+)
		480	\| ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )
		481	)
		482	}gcxsi
		483	) {
		484	my $name = $2;
		485	my $value = $4;
		486
		487	unless (defined $name) {
		488	# expires
		489	$name = "expires";
		490	$value = $1;
		491	} elsif (!defined $value) {
		492	# quoted
		493	$value = $3;
		494	$value =~ s/\\(.)/$1/gs;
		495	}
		496
		497	push @kv, lc $name, $value;
		498
		499	last unless /\G\s*;/gc;
		500	}
		501
		502	last unless @kv;
		503
		504	my $name = shift @kv;
		505	my %kv = (value => shift @kv, @kv);
		506
		507	if (exists $kv{"max-age"}) {
		508	$kv{_expires} = $anow + delete $kv{"max-age"};
		509	} elsif (exists $kv{expires}) {
		510	$snow \|\|= parse_date ($date) \|\| $anow;
		511	$kv{_expires} = $anow + (parse_date (delete $kv{expires}) - $snow);
		512	} else {
		513	delete $kv{_expires};
		514	}
		515
		516	my $cdom;
		517	my $cpath = (delete $kv{path}) \|\| "/";
		518
		519	if (exists $kv{domain}) {
		520	$cdom = delete $kv{domain};
		521
		522	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		523
		524	next if $cdom =~ /\.$/;
		525
		526	# this is not rfc-like and not netscape-like. go figure.
		527	my $ndots = $cdom =~ y/.//;
		528	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		529	} else {
		530	$cdom = $uhost;
		531	}
		532
		533	# store it
		534	$jar->{version} = 1;
		535	$jar->{$cdom}{$cpath}{$name} = \%kv;
		536
		537	redo if /\G\s*,/gc;
		538	}
		539	}
		540
		541	# continue to parse $_ for headers and place them into the arg
		542	sub parse_hdr() {
		543	my %hdr;
		544
		545	# things seen, not parsed:
		546	# p3pP="NON CUR OTPi OUR NOR UNI"
		547
		548	$hdr{lc $1} .= ",$2"
		549	while /\G
		550	([^:\000-\037]*):
		551	[\011\040]*
		552	((?: [^\012]+ \| \012[\011\040] )*)
		553	\012
		554	/gxc;
		555
		556	/\G$/
		557	or return;
		558
		559	# remove the "," prefix we added to all headers above
		560	substr $_, 0, 1, ""
		561	for values %hdr;
		562
		563	\%hdr
		564	}
		565
353	our $qr_nlnl = qr{(?<![^\012])\015?\012};	566	our $qr_nlnl = qr{(?<![^\012])\015?\012};
354		567
355	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	568	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
356	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	569	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
357		570
…		…
376	my @pseudo = (URL => $url);	589	my @pseudo = (URL => $url);
377	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};	590	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
378		591
379	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	592	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
380		593
381	return $cb->(undef, { Status => 599, Reason => "Too many redirections", @pseudo })	594	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
382	if $recurse < 0;	595	if $recurse < 0;
383		596
384	my $proxy = $arg{proxy} \|\| $PROXY;	597	my $proxy = $arg{proxy} \|\| $PROXY;
385	my $timeout = $arg{timeout} \|\| $TIMEOUT;	598	my $timeout = $arg{timeout} \|\| $TIMEOUT;
386		599
…		…
389		602
390	$uscheme = lc $uscheme;	603	$uscheme = lc $uscheme;
391		604
392	my $uport = $uscheme eq "http" ? 80	605	my $uport = $uscheme eq "http" ? 80
393	: $uscheme eq "https" ? 443	606	: $uscheme eq "https" ? 443
394	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", @pseudo });	607	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
395		608
396	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	609	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
397	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", @pseudo });	610	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
398		611
399	my $uhost = $1;	612	my $uhost = $1;
400	$uport = $2 if defined $2;	613	$uport = $2 if defined $2;
401		614
402	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"	615	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
…		…
407		620
408	$upath =~ s%^/?%/%;	621	$upath =~ s%^/?%/%;
409		622
410	# cookie processing	623	# cookie processing
411	if (my $jar = $arg{cookie_jar}) {	624	if (my $jar = $arg{cookie_jar}) {
412	%$jar = () if $jar->{version} != 1;	625	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
413		626
414	my @cookie;
415
416	while (my ($chost, $v) = each %$jar) {
417	if ($chost =~ /^\./) {
418	next unless $chost eq substr $uhost, -length $chost;
419	} elsif ($chost =~ /\./) {
420	next unless $chost eq $uhost;
421	} else {
422	next;
423	}
424
425	while (my ($cpath, $v) = each %$v) {
426	next unless $cpath eq substr $upath, 0, length $cpath;
427
428	while (my ($k, $v) = each %$v) {
429	next if $uscheme ne "https" && exists $v->{secure};
430	my $value = $v->{value};
431	$value =~ s/([\\"])/\\$1/g;
432	push @cookie, "$k=\"$value\"";
433	}
434	}
435	}
436
437	$hdr{cookie} = join "; ", @cookie	627	$hdr{cookie} = join "; ", @$cookies
438	if @cookie;	628	if @$cookies;
439	}	629	}
440		630
441	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	631	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
442		632
443	if ($proxy) {	633	if ($proxy) {
…		…
451	} else {	641	} else {
452	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	642	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
453	}	643	}
454		644
455	# leave out fragment and query string, just a heuristic	645	# leave out fragment and query string, just a heuristic
456	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	646	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
457	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	647	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
458		648
459	$hdr{"content-length"} = length $arg{body}	649	$hdr{"content-length"} = length $arg{body}
460	if length $arg{body} \|\| $method ne "GET";	650	if length $arg{body} \|\| $method ne "GET";
461		651
		652	$hdr{connection} = "close TE"; #1.1
		653	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
		654
462	my %state = (connect_guard => 1);	655	my %state = (connect_guard => 1);
463		656
464	_get_slot $uhost, sub {	657	_get_slot $uhost, sub {
465	$state{slot_guard} = shift;	658	$state{slot_guard} = shift;
466		659
467	return unless $state{connect_guard};	660	return unless $state{connect_guard};
468		661
469	my $tcp_connect = $arg{tcp_connect}	662	my $ae_error = 595; # connecting
470	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
471		663
472	$state{connect_guard} = $tcp_connect->(	664	my $connect_cb = sub {
473	$rhost,
474	$rport,
475	sub {
476	$state{fh} = shift	665	$state{fh} = shift
477	or do {	666	or do {
478	my $err = "$!";	667	my $err = "$!";
479	%state = ();	668	%state = ();
480	return $cb->(undef, { Status => 599, Reason => $err, @pseudo });	669	return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err });
481	};	670	};
482		671
483	pop; # free memory, save a tree
484
485	return unless delete $state{connect_guard};	672	return unless delete $state{connect_guard};
486		673
487	# get handle	674	# get handle
488	$state{handle} = new AnyEvent::Handle	675	$state{handle} = new AnyEvent::Handle
489	fh => $state{fh},	676	fh => $state{fh},
490	peername => $rhost,	677	peername => $rhost,
491	tls_ctx => $arg{tls_ctx},	678	tls_ctx => $arg{tls_ctx},
492	# these need to be reconfigured on keepalive handles	679	# these need to be reconfigured on keepalive handles
493	timeout => $timeout,	680	timeout => $timeout,
494	on_error => sub {	681	on_error => sub {
495	%state = ();	682	%state = ();
496	$cb->(undef, { Status => 599, Reason => $_[2], @pseudo });	683	$cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] });
497	},	684	},
498	on_eof => sub {	685	on_eof => sub {
499	%state = ();	686	%state = ();
500	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", @pseudo });	687	$cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" });
501	},	688	},
502	;	689	;
503		690
504	# limit the number of persistent connections	691	# limit the number of persistent connections
505	# keepalive not yet supported	692	# keepalive not yet supported
506	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	693	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
507	# ++$KA_COUNT{$_[1]};	694	# ++$KA_COUNT{$_[1]};
508	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {	695	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
509	# --$KA_COUNT{$_[1]}	696	# --$KA_COUNT{$_[1]}
510	# };	697	# };
511	# $hdr{connection} = "keep-alive";	698	# $hdr{connection} = "keep-alive";
512	# } else {
513	delete $hdr{connection};
514	# }	699	# }
515		700
516	$state{handle}->starttls ("connect") if $rscheme eq "https";	701	$state{handle}->starttls ("connect") if $rscheme eq "https";
517		702
518	# handle actual, non-tunneled, request	703	# handle actual, non-tunneled, request
519	my $handle_actual_request = sub {	704	my $handle_actual_request = sub {
		705	$ae_error = 596; # request phase
		706
520	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	707	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
521		708
522	# send request	709	# send request
523	$state{handle}->push_write (	710	$state{handle}->push_write (
524	"$method $rpath HTTP/1.0\015\012"	711	"$method $rpath HTTP/1.1\015\012"
525	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	712	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
526	. "\015\012"	713	. "\015\012"
527	. (delete $arg{body})	714	. (delete $arg{body})
528	);	715	);
529		716
530	# return if error occured during push_write()	717	# return if error occured during push_write()
531	return unless %state;	718	return unless %state;
532		719
533	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use	720	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
534		721
535	# status line and headers	722	# status line and headers
536	$state{handle}->push_read (line => $qr_nlnl, sub {	723	$state{read_response} = sub {
537	for ("$_[1]") {	724	for ("$_[1]") {
538	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	725	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
539		726
540	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )? \015?\012/igxc	727	/^HTTP\/0([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]) )? \012/gxci
541	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response", @pseudo }));	728	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
542		729
		730	# 100 Continue handling
		731	# should not happen as we don't send expect: 100-continue,
		732	# but we handle it just in case.
		733	# since we send the request body regardless, if we get an error
		734	# we are out of-sync, which we currently do NOT handle correctly.
		735	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
		736	if $2 eq 100;
		737
543	push @pseudo,	738	push @pseudo,
544	HTTPVersion => $1,	739	HTTPVersion => $1,
545	Status => $2,	740	Status => $2,
546	Reason => $3,	741	Reason => $3,
547	;	742	;
548		743
549	# things seen, not parsed:	744	my $hdr = parse_hdr
550	# p3pP="NON CUR OTPi OUR NOR UNI"
551
552	$hdr{lc $1} .= ",$2"
553	while /\G
554	([^:\000-\037]*):
555	[\011\040]*
556	((?: [^\012]+ \| \012[\011\040] )*)
557	\012
558	/gxc;
559
560	/\G$/
561	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", @pseudo }));	745	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		746
		747	%hdr = (%$hdr, @pseudo);
		748	}
		749
		750	# redirect handling
		751	# microsoft and other shitheads don't give a shit for following standards,
		752	# try to support some common forms of broken Location headers.
		753	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		754	$hdr{location} =~ s/^\.\/+//;
		755
		756	my $url = "$rscheme://$uhost:$uport";
		757
		758	unless ($hdr{location} =~ s/^\///) {
		759	$url .= $upath;
		760	$url =~ s/\/[^\/]*$//;
562	}	761	}
563		762
564	# remove the "," prefix we added to all headers above	763	$hdr{location} = "$url/$hdr{location}";
565	substr $_, 0, 1, ""	764	}
566	for values %hdr;
567		765
568	# patch in all pseudo headers	766	my $redirect;
569	%hdr = (%hdr, @pseudo);
570		767
		768	if ($recurse) {
		769	my $status = $hdr{Status};
		770
		771	# industry standard is to redirect POST as GET for
		772	# 301, 302 and 303, in contrast to HTTP/1.0 and 1.1.
		773	# also, the UA should ask the user for 301 and 307 and POST,
		774	# industry standard seems to be to simply follow.
		775	# we go with the industry standard.
		776	if ($status == 301 or $status == 302 or $status == 303) {
		777	# HTTP/1.1 is unclear on how to mutate the method
		778	$method = "GET" unless $method eq "HEAD";
571	# redirect handling	779	$redirect = 1;
572	# microsoft and other shitheads don't give a shit for following standards,	780	} elsif ($status == 307) {
573	# try to support some common forms of broken Location headers.	781	$redirect = 1;
574	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {	782	}
575	$hdr{location} =~ s/^\.\/+//;	783	}
576		784
577	my $url = "$rscheme://$uhost:$uport";	785	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
		786	my $may_keep_alive = $_[3];
578		787
579	unless ($hdr{location} =~ s/^\///) {	788	$state{handle}->destroy if $state{handle};
		789	%state = ();
		790
		791	if (defined $_[1]) {
		792	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		793	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		794	}
		795
		796	# set-cookie processing
		797	if ($arg{cookie_jar}) {
		798	cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost, $hdr{date};
		799	}
		800
		801	if ($redirect && exists $hdr{location}) {
		802	# we ignore any errors, as it is very common to receive
		803	# Content-Length != 0 but no actual body
		804	# we also access %hdr, as $_[1] might be an erro
		805	http_request (
		806	$method => $hdr{location},
		807	%arg,
		808	recurse => $recurse - 1,
		809	Redirect => [$_[0], \%hdr],
		810	$cb);
		811	} else {
		812	$cb->($_[0], \%hdr);
		813	}
		814	};
		815
		816	$ae_error = 597; # body phase
		817
		818	my $len = $hdr{"content-length"};
		819
		820	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		821	$finish->(undef, 598 => "Request cancelled by on_header");
		822	} elsif (
		823	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		824	or $method eq "HEAD"
		825	or (defined $len && !$len)
		826	) {
		827	# no body
		828	$finish->("", undef, undef, 1);
		829	} else {
		830	# body handling, many different code paths
		831	# - no body expected
		832	# - want_body_handle
		833	# - te chunked
		834	# - 2x length known (with or without on_body)
		835	# - 2x length not known (with or without on_body)
		836	if (!$redirect && $arg{want_body_handle}) {
		837	$_[0]->on_eof (undef);
		838	$_[0]->on_error (undef);
		839	$_[0]->on_read (undef);
		840
		841	$finish->(delete $state{handle});
		842
		843	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		844	my $cl = 0;
		845	my $body = undef;
		846	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		847
		848	$state{read_chunk} = sub {
		849	$_[1] =~ /^([0-9a-fA-F]+)/
		850	or $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		851
		852	my $len = hex $1;
		853
		854	if ($len) {
580	$url .= $upath;	855	$cl += $len;
581	$url =~ s/\/[^\/]*$//;	856
		857	$_[0]->push_read (chunk => $len, sub {
		858	$on_body->($_[1], \%hdr)
		859	or return $finish->(undef, 598 => "Request cancelled by on_body");
		860
		861	$_[0]->push_read (line => sub {
		862	length $_[1]
		863	and return $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		864	$_[0]->push_read (line => $state{read_chunk});
		865	});
		866	});
		867	} else {
		868	$hdr{"content-length"} \|\|= $cl;
		869
		870	$_[0]->push_read (line => $qr_nlnl, sub {
		871	if (length $_[1]) {
		872	for ("$_[1]") {
		873	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		874
		875	my $hdr = parse_hdr
		876	or return $finish->(undef, $ae_error => "Garbled response trailers");
		877
		878	%hdr = (%hdr, %$hdr);
		879	}
		880	}
		881
		882	$finish->($body, undef, undef, 1);
		883	});
		884	}
		885	};
		886
		887	$_[0]->push_read (line => $state{read_chunk});
		888
		889	} elsif ($arg{on_body}) {
		890	if ($len) {
		891	$_[0]->on_read (sub {
		892	$len -= length $_[0]{rbuf};
		893
		894	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		895	or return $finish->(undef, 598 => "Request cancelled by on_body");
		896
		897	$len > 0
		898	or $finish->("", undef, undef, 1);
		899	});
		900	} else {
		901	$_[0]->on_eof (sub {
		902	$finish->("");
		903	});
		904	$_[0]->on_read (sub {
		905	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		906	or $finish->(undef, 598 => "Request cancelled by on_body");
		907	});
582	}	908	}
583
584	$hdr{location} = "$url/$hdr{location}";
585	}	909	} else {
		910	$_[0]->on_eof (undef);
586		911
587	my $redirect;
588
589	if ($recurse) {	912	if ($len) {
590	my $status = $hdr{Status};	913	$_[0]->on_read (sub {
591		914	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
592	# industry standard is to redirect POST as GET for	915	if $len <= length $_[0]{rbuf};
593	# 301, 302 and 303, in contrast to http/1.0 and 1.1.
594	# also, the UA should ask the user for 301 and 307 and POST,
595	# industry standard seems to be to simply follow.
596	# we go with the industry standard.
597	if ($status == 301 or $status == 302 or $status == 303) {
598	# HTTP/1.1 is unclear on how to mutate the method
599	$method = "GET" unless $method eq "HEAD";
600	$redirect = 1;	916	});
601	} elsif ($status == 307) {	917	} else {
		918	$_[0]->on_error (sub {
		919	($! == Errno::EPIPE \|\| !$!)
		920	? $finish->(delete $_[0]{rbuf})
		921	: $finish->(undef, $ae_error => $_[2]);
602	$redirect = 1;	922	});
		923	$_[0]->on_read (sub { });
603	}	924	}
604	}	925	}
605
606	my $finish = sub {
607	$state{handle}->destroy if $state{handle};
608	%state = ();
609
610	# set-cookie processing
611	if ($arg{cookie_jar}) {
612	for ($_[1]{"set-cookie"}) {
613	# parse NAME=VALUE
614	my @kv;
615
616	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
617	my $name = $1;
618	my $value = $3;
619
620	unless ($value) {
621	$value = $2;
622	$value =~ s/\\(.)/$1/gs;
623	}
624
625	push @kv, $name => $value;
626
627	last unless /\G\s*;/gc;
628	}
629
630	last unless @kv;
631
632	my $name = shift @kv;
633	my %kv = (value => shift @kv, @kv);
634
635	my $cdom;
636	my $cpath = (delete $kv{path}) \|\| "/";
637
638	if (exists $kv{domain}) {
639	$cdom = delete $kv{domain};
640
641	$cdom =~ s/^\.?/./; # make sure it starts with a "."
642
643	next if $cdom =~ /\.$/;
644
645	# this is not rfc-like and not netscape-like. go figure.
646	my $ndots = $cdom =~ y/.//;
647	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
648	} else {
649	$cdom = $uhost;
650	}
651
652	# store it
653	$arg{cookie_jar}{version} = 1;
654	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
655
656	redo if /\G\s*,/gc;
657	}
658	}
659
660	if ($redirect && exists $hdr{location}) {
661	# we ignore any errors, as it is very common to receive
662	# Content-Length != 0 but no actual body
663	# we also access %hdr, as $_[1] might be an erro
664	http_request (
665	$method => $hdr{location},
666	%arg,
667	recurse => $recurse - 1,
668	Redirect => \@_,
669	$cb);
670	} else {
671	$cb->($_[0], $_[1]);
672	}
673	};
674
675	my $len = $hdr{"content-length"};
676
677	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
678	$finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", @pseudo });
679	} elsif (
680	$hdr{Status} =~ /^(?:1..\|[23]04)$/
681	or $method eq "HEAD"
682	or (defined $len && !$len)
683	) {
684	# no body
685	$finish->("", \%hdr);
686	} else {
687	# body handling, four different code paths
688	# for want_body_handle, on_body (2x), normal (2x)
689	# we might read too much here, but it does not matter yet (no pers. connections)
690	if (!$redirect && $arg{want_body_handle}) {
691	$_[0]->on_eof (undef);
692	$_[0]->on_error (undef);
693	$_[0]->on_read (undef);
694
695	$finish->(delete $state{handle}, \%hdr);
696
697	} elsif ($arg{on_body}) {
698	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
699	if ($len) {
700	$_[0]->on_eof (undef);
701	$_[0]->on_read (sub {
702	$len -= length $_[0]{rbuf};
703
704	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
705	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
706
707	$len > 0
708	or $finish->("", \%hdr);
709	});
710	} else {
711	$_[0]->on_eof (sub {
712	$finish->("", \%hdr);
713	});
714	$_[0]->on_read (sub {
715	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
716	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
717	});
718	}
719	} else {
720	$_[0]->on_eof (undef);
721
722	if ($len) {
723	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
724	$_[0]->on_read (sub {
725	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
726	if $len <= length $_[0]{rbuf};
727	});
728	} else {
729	$_[0]->on_error (sub {
730	($! == Errno::EPIPE \|\| !$!)
731	? $finish->(delete $_[0]{rbuf}, \%hdr)
732	: $finish->(undef, { Status => 599, Reason => $_[2], @pseudo });
733	});
734	$_[0]->on_read (sub { });
735	}
736	}
737	}
738	});	926	}
739	};	927	};
740		928
		929	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
		930	};
		931
741	# now handle proxy-CONNECT method	932	# now handle proxy-CONNECT method
742	if ($proxy && $uscheme eq "https") {	933	if ($proxy && $uscheme eq "https") {
743	# oh dear, we have to wrap it into a connect request	934	# oh dear, we have to wrap it into a connect request
744		935
745	# maybe re-use $uauthority with patched port?	936	# maybe re-use $uauthority with patched port?
746	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");	937	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
747	$state{handle}->push_read (line => $qr_nlnl, sub {	938	$state{handle}->push_read (line => $qr_nlnl, sub {
748	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	939	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
749	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", @pseudo }));	940	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
750		941
751	if ($2 == 200) {	942	if ($2 == 200) {
752	$rpath = $upath;	943	$rpath = $upath;
753	&$handle_actual_request;	944	$handle_actual_request->();
754	} else {	945	} else {
755	%state = ();	946	%state = ();
756	$cb->(undef, { Status => $2, Reason => $3, @pseudo });	947	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
757	}
758	});	948	}
759	} else {
760	&$handle_actual_request;
761	}	949	});
762		950	} else {
		951	$handle_actual_request->();
763	},	952	}
764	$arg{on_prepare} \|\| sub { $timeout }
765	);	953	};
		954
		955	my $tcp_connect = $arg{tcp_connect}
		956	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		957
		958	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		959
766	};	960	};
767		961
768	defined wantarray && AnyEvent::Util::guard { %state = () }	962	defined wantarray && AnyEvent::Util::guard { %state = () }
769	}	963	}
770		964
…		…
805	string of the form C<http://host:port> (optionally C<https:...>), croaks	999	string of the form C<http://host:port> (optionally C<https:...>), croaks
806	otherwise.	1000	otherwise.
807		1001
808	To clear an already-set proxy, use C<undef>.	1002	To clear an already-set proxy, use C<undef>.
809		1003
		1004	=item AnyEvent::HTTP::cookie_jar_expire $jar[, $session_end]
		1005
		1006	Remove all cookies from the cookie jar that have been expired. If
		1007	C<$session_end> is given and true, then additionally remove all session
		1008	cookies.
		1009
		1010	You should call this function (with a true C<$session_end>) before you
		1011	save cookies to disk, and you should call this function after loading them
		1012	again. If you have a long-running program you can additonally call this
		1013	function from time to time.
		1014
		1015	A cookie jar is initially an empty hash-reference that is managed by this
		1016	module. It's format is subject to change, but currently it is like this:
		1017
		1018	The key C<version> has to contain C<1>, otherwise the hash gets
		1019	emptied. All other keys are hostnames or IP addresses pointing to
		1020	hash-references. The key for these inner hash references is the
		1021	server path for which this cookie is meant, and the values are again
		1022	hash-references. The keys of those hash-references is the cookie name, and
		1023	the value, you guessed it, is another hash-reference, this time with the
		1024	key-value pairs from the cookie, except for C<expires> and C<max-age>,
		1025	which have been replaced by a C<_expires> key that contains the cookie
		1026	expiry timestamp.
		1027
		1028	Here is an example of a cookie jar with a single cookie, so you have a
		1029	chance of understanding the above paragraph:
		1030
		1031	{
		1032	version => 1,
		1033	"10.0.0.1" => {
		1034	"/" => {
		1035	"mythweb_id" => {
		1036	_expires => 1293917923,
		1037	value => "ooRung9dThee3ooyXooM1Ohm",
		1038	},
		1039	},
		1040	},
		1041	}
		1042
		1043	=item $date = AnyEvent::HTTP::format_date $timestamp
		1044
		1045	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
		1046	Date (RFC 2616).
		1047
		1048	=item $timestamp = AnyEvent::HTTP::parse_date $date
		1049
		1050	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) or a
		1051	bunch of minor variations of those, and returns the corresponding POSIX
		1052	timestamp, or C<undef> if the date cannot be parsed.
		1053
810	=item $AnyEvent::HTTP::MAX_RECURSE	1054	=item $AnyEvent::HTTP::MAX_RECURSE
811		1055
812	The default value for the C<recurse> request parameter (default: C<10>).	1056	The default value for the C<recurse> request parameter (default: C<10>).
813		1057
814	=item $AnyEvent::HTTP::USERAGENT	1058	=item $AnyEvent::HTTP::USERAGENT
…		…
832	connections. This number of can be useful for load-leveling.	1076	connections. This number of can be useful for load-leveling.
833		1077
834	=back	1078	=back
835		1079
836	=cut	1080	=cut
		1081
		1082	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		1083	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		1084
		1085	sub format_date($) {
		1086	my ($time) = @_;
		1087
		1088	# RFC 822/1123 format
		1089	my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time;
		1090
		1091	sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT",
		1092	$weekday[$wday], $mday, $month[$mon], $year + 1900,
		1093	$H, $M, $S;
		1094	}
		1095
		1096	sub parse_date($) {
		1097	my ($date) = @_;
		1098
		1099	my ($d, $m, $y, $H, $M, $S);
		1100
		1101	if ($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$/) {
		1102	# RFC 822/1123, required by RFC 2616 (with " ")
		1103	# cookie dates (with "-")
		1104
		1105	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
		1106
		1107	} elsif ($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$/) {
		1108	# RFC 850
		1109	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
		1110
		1111	} elsif ($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])$/) {
		1112	# ISO C's asctime
		1113	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
		1114	}
		1115	# other formats fail in the loop below
		1116
		1117	for (0..11) {
		1118	if ($m eq $month[$_]) {
		1119	require Time::Local;
		1120	return Time::Local::timegm ($S, $M, $H, $d, $_, $y);
		1121	}
		1122	}
		1123
		1124	undef
		1125	}
837		1126
838	sub set_proxy($) {	1127	sub set_proxy($) {
839	if (length $_[0]) {	1128	if (length $_[0]) {
840	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix	1129	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
841	or Carp::croak "$_[0]: invalid proxy URL";	1130	or Carp::croak "$_[0]: invalid proxy URL";
…		…
848	# initialise proxy from environment	1137	# initialise proxy from environment
849	eval {	1138	eval {
850	set_proxy $ENV{http_proxy};	1139	set_proxy $ENV{http_proxy};
851	};	1140	};
852		1141
		1142	=head2 SOCKS PROXIES
		1143
		1144	Socks proxies are not directly supported by AnyEvent::HTTP. You can
		1145	compile your perl to support socks, or use an external program such as
		1146	F<socksify> (dante) or F<tsocks> to make your program use a socks proxy
		1147	transparently.
		1148
		1149	Alternatively, for AnyEvent::HTTP only, you can use your own
		1150	C<tcp_connect> function that does the proxy handshake - here is an example
		1151	that works with socks4a proxies:
		1152
		1153	use Errno;
		1154	use AnyEvent::Util;
		1155	use AnyEvent::Socket;
		1156	use AnyEvent::Handle;
		1157
		1158	# host, port and username of/for your socks4a proxy
		1159	my $socks_host = "10.0.0.23";
		1160	my $socks_port = 9050;
		1161	my $socks_user = "";
		1162
		1163	sub socks4a_connect {
		1164	my ($host, $port, $connect_cb, $prepare_cb) = @_;
		1165
		1166	my $hdl = new AnyEvent::Handle
		1167	connect => [$socks_host, $socks_port],
		1168	on_prepare => sub { $prepare_cb->($_[0]{fh}) },
		1169	on_error => sub { $connect_cb->() },
		1170	;
		1171
		1172	$hdl->push_write (pack "CCnNZZ", 4, 1, $port, 1, $socks_user, $host);
		1173
		1174	$hdl->push_read (chunk => 8, sub {
		1175	my ($hdl, $chunk) = @_;
		1176	my ($status, $port, $ipn) = unpack "xCna4", $chunk;
		1177
		1178	if ($status == 0x5a) {
		1179	$connect_cb->($hdl->{fh}, (format_address $ipn) . ":$port");
		1180	} else {
		1181	$! = Errno::ENXIO; $connect_cb->();
		1182	}
		1183	});
		1184
		1185	$hdl
		1186	}
		1187
		1188	Use C<socks4a_connect> instead of C<tcp_connect> when doing C<http_request>s,
		1189	possibly after switching off other proxy types:
		1190
		1191	AnyEvent::HTTP::set_proxy undef; # usually you do not want other proxies
		1192
		1193	http_get 'http://www.google.com', tcp_connect => \&socks4a_connect, sub {
		1194	my ($data, $headers) = @_;
		1195	...
		1196	};
		1197
853	=head1 SEE ALSO	1198	=head1 SEE ALSO
854		1199
855	L<AnyEvent>.	1200	L<AnyEvent>.
856		1201
857	=head1 AUTHOR	1202	=head1 AUTHOR

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.59 by root, Wed Dec 29 23:59:36 2010 UTC vs. Revision 1.81 by root, Sun Jan 2 01:20:17 2011 UTC

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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.59 by root, Wed Dec 29 23:59:36 2010 UTC vs.
Revision 1.81 by root, Sun Jan 2 01:20:17 2011 UTC