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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.56 by root, Mon Sep 6 05:30:54 2010 UTC vs.
Revision 1.82 by root, Sun Jan 2 04:50:40 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 = '1.45';	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" (uppercase to avoid clashing with possible	103	headers, the "pseudo-headers" (uppercase to avoid clashing with possible
105	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the	104	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the
106	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>.
107		109
108	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
109	the requested URL when following redirects - for example, you might get	111	the requested URL when following redirects - for example, you might get
110	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
111	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
…		…
120		122
121	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
122	joined together with a comma (C<,>), as per the HTTP spec.	124	joined together with a comma (C<,>), as per the HTTP spec.
123		125
124	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,
125	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<59x>	127	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be
126	(usually C<599>) and the C<Reason> pseudo-header will contain an error	128	C<590>-C<599> and the C<Reason> pseudo-header will contain an error
127	message.	129	message. Currently the following status codes are used:
		130
		131	=over 4
		132
		133	=item 595 - errors during connection etsbalishment, proxy handshake.
		134
		135	=item 596 - errors during TLS negotiation, request sending and header processing.
		136
		137	=item 597 - errors during body receiving or processing.
		138
		139	=item 598 - user aborted request via C<on_header> or C<on_body>.
		140
		141	=item 599 - other, usually nonretryable, errors (garbled URL etc.).
		142
		143	=back
128		144
129	A typical callback might look like this:	145	A typical callback might look like this:
130		146
131	sub {	147	sub {
132	my ($body, $hdr) = @_;	148	my ($body, $hdr) = @_;
…		…
148	Whether to recurse requests or not, e.g. on redirects, authentication	164	Whether to recurse requests or not, e.g. on redirects, authentication
149	retries and so on, and how often to do so.	165	retries and so on, and how often to do so.
150		166
151	=item headers => hashref	167	=item headers => hashref
152		168
153	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
154	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
155	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:>
156	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
157	sent at all).	173	they won't be sent at all).
158		174
159	=item timeout => $seconds	175	=item timeout => $seconds
160		176
161	The time-out to use for various stages - each connect attempt will reset	177	The time-out to use for various stages - each connect attempt will reset
162	the timeout, as will read or write activity, i.e. this is not an overall	178	the timeout, as will read or write activity, i.e. this is not an overall
…		…
172	C<$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
173	HTTPS.	189	HTTPS.
174		190
175	=item body => $string	191	=item body => $string
176		192
177	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
178	this module might offer more options).	194	this module might offer more options).
179		195
180	=item cookie_jar => $hash_ref	196	=item cookie_jar => $hash_ref
181		197
182	Passing this parameter enables (simplified) cookie-processing, loosely	198	Passing this parameter enables (simplified) cookie-processing, loosely
183	based on the original netscape specification.	199	based on the original netscape specification.
184		200
185	The C<$hash_ref> must be an (initially empty) hash reference which will	201	The C<$hash_ref> must be an (initially empty) hash reference which
186	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
187	persistent storage with something like JSON or Storable, but this is not	203	to persistent storage with something like JSON or Storable - see the
188	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.
189		207
190	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
191	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
192	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
193	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
194	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.
195		217
196	=item tls_ctx => $scheme \| $tls_ctx	218	=item tls_ctx => $scheme \| $tls_ctx
197		219
198	Specifies the AnyEvent::TLS context to be used for https connections. This	220	Specifies the AnyEvent::TLS context to be used for https connections. This
199	parameter follows the same rules as the C<tls_ctx> parameter to	221	parameter follows the same rules as the C<tls_ctx> parameter to
…		…
212	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>	234	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>
213	and behaves exactly the same way (e.g. it has to provide a	235	and behaves exactly the same way (e.g. it has to provide a
214	timeout). See the description for the C<$prepare_cb> argument of	236	timeout). See the description for the C<$prepare_cb> argument of
215	C<AnyEvent::Socket::tcp_connect> for details.	237	C<AnyEvent::Socket::tcp_connect> for details.
216		238
		239	=item tcp_connect => $callback->($host, $service, $connect_cb, $prepare_cb)
		240
		241	In even rarer cases you want total control over how AnyEvent::HTTP
		242	establishes connections. Normally it uses L<AnyEvent::Socket::tcp_connect>
		243	to do this, but you can provide your own C<tcp_connect> function -
		244	obviously, it has to follow the same calling conventions, except that it
		245	may always return a connection guard object.
		246
		247	There are probably lots of weird uses for this function, starting from
		248	tracing the hosts C<http_request> actually tries to connect, to (inexact
		249	but fast) host => IP address caching or even socks protocol support.
		250
217	=item on_header => $callback->($headers)	251	=item on_header => $callback->($headers)
218		252
219	When specified, this callback will be called with the header hash as soon	253	When specified, this callback will be called with the header hash as soon
220	as headers have been successfully received from the remote server (not on	254	as headers have been successfully received from the remote server (not on
221	locally-generated errors).	255	locally-generated errors).
…		…
226		260
227	This callback is useful, among other things, to quickly reject unwanted	261	This callback is useful, among other things, to quickly reject unwanted
228	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
229	doing a C<HEAD> request.	263	doing a C<HEAD> request.
230		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
231	Example: cancel the request unless the content-type is "text/html".	269	Example: cancel the request unless the content-type is "text/html".
232		270
233	on_header => sub {	271	on_header => sub {
234	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	272	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
235	},	273	},
…		…
241	string instead of the body data.	279	string instead of the body data.
242		280
243	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),
244	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
245	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.
246		287
247	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
248	(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
249	be extracted, or when the body should be processed incrementally.	290	be extracted, or when the body should be processed incrementally.
250		291
…		…
276	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
277	that doesn't solve your problem in a better way.	318	that doesn't solve your problem in a better way.
278		319
279	=back	320	=back
280		321
281	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.
282		324
283	http_request GET => "http://www.nethype.de/", sub {	325	http_request GET => "http://www.nethype.de/", sub {
284	my ($body, $hdr) = @_;	326	my ($body, $hdr) = @_;
285	print "$body\n";	327	print "$body\n";
286	};	328	};
287		329
288	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
289	timeout of 30 seconds.	331	timeout of 30 seconds.
290		332
291	http_request	333	http_request
292	GET => "https://www.google.com",	334	GET => "https://www.google.com",
293	timeout => 30,	335	timeout => 30,
…		…
296	use Data::Dumper;	338	use Data::Dumper;
297	print Dumper $hdr;	339	print Dumper $hdr;
298	}	340	}
299	;	341	;
300		342
301	Example: make another simple HTTP GET request, but immediately try to	343	Example: do another simple HTTP GET request, but immediately try to
302	cancel it.	344	cancel it.
303		345
304	my $request = http_request GET => "http://www.nethype.de/", sub {	346	my $request = http_request GET => "http://www.nethype.de/", sub {
305	my ($body, $hdr) = @_;	347	my ($body, $hdr) = @_;
306	print "$body\n";	348	print "$body\n";
…		…
338	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	380	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
339		381
340	_slot_schedule $_[0];	382	_slot_schedule $_[0];
341	}	383	}
342		384
343	our $qr_nl = qr{\015?\012};	385	#############################################################################
		386
		387	# expire cookies
		388	sub cookie_jar_expire($;$) {
		389	my ($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	if (defined $1) {
		488	# expires
		489	$name = "expires";
		490	$value = $1;
		491	} elsif (defined $3) {
		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
344	our $qr_nlnl = qr{(?<![^\012])\015?\012};	566	our $qr_nlnl = qr{(?<![^\012])\015?\012};
345		567
346	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	568	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
347	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	569	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
348		570
…		…
367	my @pseudo = (URL => $url);	589	my @pseudo = (URL => $url);
368	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};	590	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
369		591
370	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	592	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
371		593
372	return $cb->(undef, { Status => 599, Reason => "Too many redirections", @pseudo })	594	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
373	if $recurse < 0;	595	if $recurse < 0;
374		596
375	my $proxy = $arg{proxy} \|\| $PROXY;	597	my $proxy = $arg{proxy} \|\| $PROXY;
376	my $timeout = $arg{timeout} \|\| $TIMEOUT;	598	my $timeout = $arg{timeout} \|\| $TIMEOUT;
377		599
…		…
380		602
381	$uscheme = lc $uscheme;	603	$uscheme = lc $uscheme;
382		604
383	my $uport = $uscheme eq "http" ? 80	605	my $uport = $uscheme eq "http" ? 80
384	: $uscheme eq "https" ? 443	606	: $uscheme eq "https" ? 443
385	: 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" });
386		608
387	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	609	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
388	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", @pseudo });	610	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
389		611
390	my $uhost = $1;	612	my $uhost = $1;
391	$uport = $2 if defined $2;	613	$uport = $2 if defined $2;
392		614
393	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"	615	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
…		…
398		620
399	$upath =~ s%^/?%/%;	621	$upath =~ s%^/?%/%;
400		622
401	# cookie processing	623	# cookie processing
402	if (my $jar = $arg{cookie_jar}) {	624	if (my $jar = $arg{cookie_jar}) {
403	%$jar = () if $jar->{version} != 1;	625	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
404		626
405	my @cookie;
406
407	while (my ($chost, $v) = each %$jar) {
408	if ($chost =~ /^\./) {
409	next unless $chost eq substr $uhost, -length $chost;
410	} elsif ($chost =~ /\./) {
411	next unless $chost eq $uhost;
412	} else {
413	next;
414	}
415
416	while (my ($cpath, $v) = each %$v) {
417	next unless $cpath eq substr $upath, 0, length $cpath;
418
419	while (my ($k, $v) = each %$v) {
420	next if $uscheme ne "https" && exists $v->{secure};
421	my $value = $v->{value};
422	$value =~ s/([\\"])/\\$1/g;
423	push @cookie, "$k=\"$value\"";
424	}
425	}
426	}
427
428	$hdr{cookie} = join "; ", @cookie	627	$hdr{cookie} = join "; ", @$cookies
429	if @cookie;	628	if @$cookies;
430	}	629	}
431		630
432	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	631	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
433		632
434	if ($proxy) {	633	if ($proxy) {
…		…
442	} else {	641	} else {
443	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	642	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
444	}	643	}
445		644
446	# leave out fragment and query string, just a heuristic	645	# leave out fragment and query string, just a heuristic
447	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	646	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
448	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	647	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
449		648
450	$hdr{"content-length"} = length $arg{body}	649	$hdr{"content-length"} = length $arg{body}
451	if length $arg{body} \|\| $method ne "GET";	650	if length $arg{body} \|\| $method ne "GET";
452		651
		652	$hdr{connection} = "close TE"; #1.1
		653	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
		654
453	my %state = (connect_guard => 1);	655	my %state = (connect_guard => 1);
454		656
455	_get_slot $uhost, sub {	657	_get_slot $uhost, sub {
456	$state{slot_guard} = shift;	658	$state{slot_guard} = shift;
457		659
458	return unless $state{connect_guard};	660	return unless $state{connect_guard};
459		661
460	$state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {	662	my $ae_error = 595; # connecting
		663
		664	# handle actual, non-tunneled, request
		665	my $handle_actual_request = sub {
		666	$ae_error = 596; # request phase
		667
		668	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
		669
		670	# send request
		671	$state{handle}->push_write (
		672	"$method $rpath HTTP/1.1\015\012"
		673	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
		674	. "\015\012"
		675	. (delete $arg{body})
		676	);
		677
		678	# return if error occured during push_write()
		679	return unless %state;
		680
		681	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
		682
		683	# status line and headers
		684	$state{read_response} = sub {
		685	for ("$_[1]") {
		686	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		687
		688	/^HTTP\/0([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]) )? \012/gxci
		689	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
		690
		691	# 100 Continue handling
		692	# should not happen as we don't send expect: 100-continue,
		693	# but we handle it just in case.
		694	# since we send the request body regardless, if we get an error
		695	# we are out of-sync, which we currently do NOT handle correctly.
		696	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
		697	if $2 eq 100;
		698
		699	push @pseudo,
		700	HTTPVersion => $1,
		701	Status => $2,
		702	Reason => $3,
		703	;
		704
		705	my $hdr = parse_hdr
		706	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		707
		708	%hdr = (%$hdr, @pseudo);
		709	}
		710
		711	# redirect handling
		712	# microsoft and other shitheads don't give a shit for following standards,
		713	# try to support some common forms of broken Location headers.
		714	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		715	$hdr{location} =~ s/^\.\/+//;
		716
		717	my $url = "$rscheme://$uhost:$uport";
		718
		719	unless ($hdr{location} =~ s/^\///) {
		720	$url .= $upath;
		721	$url =~ s/\/[^\/]*$//;
		722	}
		723
		724	$hdr{location} = "$url/$hdr{location}";
		725	}
		726
		727	my $redirect;
		728
		729	if ($recurse) {
		730	my $status = $hdr{Status};
		731
		732	# industry standard is to redirect POST as GET for
		733	# 301, 302 and 303, in contrast to HTTP/1.0 and 1.1.
		734	# also, the UA should ask the user for 301 and 307 and POST,
		735	# industry standard seems to be to simply follow.
		736	# we go with the industry standard.
		737	if ($status == 301 or $status == 302 or $status == 303) {
		738	# HTTP/1.1 is unclear on how to mutate the method
		739	$method = "GET" unless $method eq "HEAD";
		740	$redirect = 1;
		741	} elsif ($status == 307) {
		742	$redirect = 1;
		743	}
		744	}
		745
		746	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
		747	my $may_keep_alive = $_[3];
		748
		749	$state{handle}->destroy if $state{handle};
		750	%state = ();
		751
		752	if (defined $_[1]) {
		753	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		754	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		755	}
		756
		757	# set-cookie processing
		758	if ($arg{cookie_jar}) {
		759	cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost, $hdr{date};
		760	}
		761
		762	if ($redirect && exists $hdr{location}) {
		763	# we ignore any errors, as it is very common to receive
		764	# Content-Length != 0 but no actual body
		765	# we also access %hdr, as $_[1] might be an erro
		766	http_request (
		767	$method => $hdr{location},
		768	%arg,
		769	recurse => $recurse - 1,
		770	Redirect => [$_[0], \%hdr],
		771	$cb);
		772	} else {
		773	$cb->($_[0], \%hdr);
		774	}
		775	};
		776
		777	$ae_error = 597; # body phase
		778
		779	my $len = $hdr{"content-length"};
		780
		781	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		782	$finish->(undef, 598 => "Request cancelled by on_header");
		783	} elsif (
		784	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		785	or $method eq "HEAD"
		786	or (defined $len && !$len)
		787	) {
		788	# no body
		789	$finish->("", undef, undef, 1);
		790	} else {
		791	# body handling, many different code paths
		792	# - no body expected
		793	# - want_body_handle
		794	# - te chunked
		795	# - 2x length known (with or without on_body)
		796	# - 2x length not known (with or without on_body)
		797	if (!$redirect && $arg{want_body_handle}) {
		798	$_[0]->on_eof (undef);
		799	$_[0]->on_error (undef);
		800	$_[0]->on_read (undef);
		801
		802	$finish->(delete $state{handle});
		803
		804	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		805	my $cl = 0;
		806	my $body = undef;
		807	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		808
		809	$state{read_chunk} = sub {
		810	$_[1] =~ /^([0-9a-fA-F]+)/
		811	or $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		812
		813	my $len = hex $1;
		814
		815	if ($len) {
		816	$cl += $len;
		817
		818	$_[0]->push_read (chunk => $len, sub {
		819	$on_body->($_[1], \%hdr)
		820	or return $finish->(undef, 598 => "Request cancelled by on_body");
		821
		822	$_[0]->push_read (line => sub {
		823	length $_[1]
		824	and return $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		825	$_[0]->push_read (line => $state{read_chunk});
		826	});
		827	});
		828	} else {
		829	$hdr{"content-length"} \|\|= $cl;
		830
		831	$_[0]->push_read (line => $qr_nlnl, sub {
		832	if (length $_[1]) {
		833	for ("$_[1]") {
		834	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		835
		836	my $hdr = parse_hdr
		837	or return $finish->(undef, $ae_error => "Garbled response trailers");
		838
		839	%hdr = (%hdr, %$hdr);
		840	}
		841	}
		842
		843	$finish->($body, undef, undef, 1);
		844	});
		845	}
		846	};
		847
		848	$_[0]->push_read (line => $state{read_chunk});
		849
		850	} elsif ($arg{on_body}) {
		851	if ($len) {
		852	$_[0]->on_read (sub {
		853	$len -= length $_[0]{rbuf};
		854
		855	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		856	or return $finish->(undef, 598 => "Request cancelled by on_body");
		857
		858	$len > 0
		859	or $finish->("", undef, undef, 1);
		860	});
		861	} else {
		862	$_[0]->on_eof (sub {
		863	$finish->("");
		864	});
		865	$_[0]->on_read (sub {
		866	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		867	or $finish->(undef, 598 => "Request cancelled by on_body");
		868	});
		869	}
		870	} else {
		871	$_[0]->on_eof (undef);
		872
		873	if ($len) {
		874	$_[0]->on_read (sub {
		875	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
		876	if $len <= length $_[0]{rbuf};
		877	});
		878	} else {
		879	$_[0]->on_error (sub {
		880	($! == Errno::EPIPE \|\| !$!)
		881	? $finish->(delete $_[0]{rbuf})
		882	: $finish->(undef, $ae_error => $_[2]);
		883	});
		884	$_[0]->on_read (sub { });
		885	}
		886	}
		887	}
		888	};
		889
		890	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
		891	};
		892
		893	my $connect_cb = sub {
461	$state{fh} = shift	894	$state{fh} = shift
462	or do {	895	or do {
463	my $err = "$!";	896	my $err = "$!";
464	%state = ();	897	%state = ();
465	return $cb->(undef, { Status => 599, Reason => $err, @pseudo });	898	return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err });
466	};	899	};
467
468	pop; # free memory, save a tree
469		900
470	return unless delete $state{connect_guard};	901	return unless delete $state{connect_guard};
471		902
472	# get handle	903	# get handle
473	$state{handle} = new AnyEvent::Handle	904	$state{handle} = new AnyEvent::Handle
…		…
476	tls_ctx => $arg{tls_ctx},	907	tls_ctx => $arg{tls_ctx},
477	# these need to be reconfigured on keepalive handles	908	# these need to be reconfigured on keepalive handles
478	timeout => $timeout,	909	timeout => $timeout,
479	on_error => sub {	910	on_error => sub {
480	%state = ();	911	%state = ();
481	$cb->(undef, { Status => 599, Reason => $_[2], @pseudo });	912	$cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] });
482	},	913	},
483	on_eof => sub {	914	on_eof => sub {
484	%state = ();	915	%state = ();
485	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", @pseudo });	916	$cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" });
486	},	917	},
487	;	918	;
488		919
489	# limit the number of persistent connections	920	# limit the number of persistent connections
490	# keepalive not yet supported	921	# keepalive not yet supported
…		…
492	# ++$KA_COUNT{$_[1]};	923	# ++$KA_COUNT{$_[1]};
493	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {	924	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
494	# --$KA_COUNT{$_[1]}	925	# --$KA_COUNT{$_[1]}
495	# };	926	# };
496	# $hdr{connection} = "keep-alive";	927	# $hdr{connection} = "keep-alive";
497	# } else {
498	delete $hdr{connection};
499	# }	928	# }
500		929
501	$state{handle}->starttls ("connect") if $rscheme eq "https";	930	$state{handle}->starttls ("connect") if $rscheme eq "https";
502
503	# handle actual, non-tunneled, request
504	my $handle_actual_request = sub {
505	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
506
507	# send request
508	$state{handle}->push_write (
509	"$method $rpath HTTP/1.0\015\012"
510	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
511	. "\015\012"
512	. (delete $arg{body})
513	);
514
515	# return if error occured during push_write()
516	return unless %state;
517
518	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
519
520	# status line
521	$state{handle}->push_read (line => $qr_nl, sub {
522	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
523	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", @pseudo }));
524
525	push @pseudo,
526	HTTPVersion => $1,
527	Status => $2,
528	Reason => $3,
529	;
530
531	# headers, could be optimized a bit
532	$state{handle}->unshift_read (line => $qr_nlnl, sub {
533	for ("$_[1]") {
534	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
535
536	# things seen, not parsed:
537	# p3pP="NON CUR OTPi OUR NOR UNI"
538
539	$hdr{lc $1} .= ",$2"
540	while /\G
541	([^:\000-\037]*):
542	[\011\040]*
543	((?: [^\012]+ \| \012[\011\040] )*)
544	\012
545	/gxc;
546
547	/\G$/
548	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", @pseudo }));
549	}
550
551	# remove the "," prefix we added to all headers above
552	substr $_, 0, 1, ""
553	for values %hdr;
554
555	# patch in all pseudo headers
556	%hdr = (%hdr, @pseudo);
557
558	# redirect handling
559	# microsoft and other shitheads don't give a shit for following standards,
560	# try to support some common forms of broken Location headers.
561	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
562	$hdr{location} =~ s/^\.\/+//;
563
564	my $url = "$rscheme://$uhost:$uport";
565
566	unless ($hdr{location} =~ s/^\///) {
567	$url .= $upath;
568	$url =~ s/\/[^\/]*$//;
569	}
570
571	$hdr{location} = "$url/$hdr{location}";
572	}
573
574	my $redirect;
575
576	if ($recurse) {
577	my $status = $hdr{Status};
578
579	if (($status == 301 \|\| $status == 302) && $method ne "POST") {
580	# apparently, mozilla et al. just change POST to GET here
581	# more research is needed before we do the same
582	$redirect = 1;
583	} elsif ($status == 303) {
584	# even http/1.1 is unclear on how to mutate the method
585	$method = "GET" unless $method eq "HEAD";
586	$redirect = 1;
587	} elsif ($status == 307 && $method =~ /^(?:GET\|HEAD)$/) {
588	$redirect = 1;
589	}
590	}
591
592	my $finish = sub {
593	$state{handle}->destroy if $state{handle};
594	%state = ();
595
596	# set-cookie processing
597	if ($arg{cookie_jar}) {
598	for ($_[1]{"set-cookie"}) {
599	# parse NAME=VALUE
600	my @kv;
601
602	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
603	my $name = $1;
604	my $value = $3;
605
606	unless ($value) {
607	$value = $2;
608	$value =~ s/\\(.)/$1/gs;
609	}
610
611	push @kv, $name => $value;
612
613	last unless /\G\s*;/gc;
614	}
615
616	last unless @kv;
617
618	my $name = shift @kv;
619	my %kv = (value => shift @kv, @kv);
620
621	my $cdom;
622	my $cpath = (delete $kv{path}) \|\| "/";
623
624	if (exists $kv{domain}) {
625	$cdom = delete $kv{domain};
626
627	$cdom =~ s/^\.?/./; # make sure it starts with a "."
628
629	next if $cdom =~ /\.$/;
630
631	# this is not rfc-like and not netscape-like. go figure.
632	my $ndots = $cdom =~ y/.//;
633	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
634	} else {
635	$cdom = $uhost;
636	}
637
638	# store it
639	$arg{cookie_jar}{version} = 1;
640	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
641
642	redo if /\G\s*,/gc;
643	}
644	}
645
646	if ($redirect && exists $hdr{location}) {
647	# we ignore any errors, as it is very common to receive
648	# Content-Length != 0 but no actual body
649	# we also access %hdr, as $_[1] might be an erro
650	http_request (
651	$method => $hdr{location},
652	%arg,
653	recurse => $recurse - 1,
654	Redirect => \@_,
655	$cb);
656	} else {
657	$cb->($_[0], $_[1]);
658	}
659	};
660
661	my $len = $hdr{"content-length"};
662
663	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
664	$finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", @pseudo });
665	} elsif (
666	$hdr{Status} =~ /^(?:1..\|[23]04)$/
667	or $method eq "HEAD"
668	or (defined $len && !$len)
669	) {
670	# no body
671	$finish->("", \%hdr);
672	} else {
673	# body handling, four different code paths
674	# for want_body_handle, on_body (2x), normal (2x)
675	# we might read too much here, but it does not matter yet (no pers. connections)
676	if (!$redirect && $arg{want_body_handle}) {
677	$_[0]->on_eof (undef);
678	$_[0]->on_error (undef);
679	$_[0]->on_read (undef);
680
681	$finish->(delete $state{handle}, \%hdr);
682
683	} elsif ($arg{on_body}) {
684	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
685	if ($len) {
686	$_[0]->on_eof (undef);
687	$_[0]->on_read (sub {
688	$len -= length $_[0]{rbuf};
689
690	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
691	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
692
693	$len > 0
694	or $finish->("", \%hdr);
695	});
696	} else {
697	$_[0]->on_eof (sub {
698	$finish->("", \%hdr);
699	});
700	$_[0]->on_read (sub {
701	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
702	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
703	});
704	}
705	} else {
706	$_[0]->on_eof (undef);
707
708	if ($len) {
709	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
710	$_[0]->on_read (sub {
711	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
712	if $len <= length $_[0]{rbuf};
713	});
714	} else {
715	$_[0]->on_error (sub {
716	$! == Errno::EPIPE \|\| !$!
717	? $finish->(delete $_[0]{rbuf}, \%hdr)
718	: $finish->(undef, { Status => 599, Reason => $_[2], @pseudo });
719	});
720	$_[0]->on_read (sub { });
721	}
722	}
723	}
724	});
725	});
726	};
727		931
728	# now handle proxy-CONNECT method	932	# now handle proxy-CONNECT method
729	if ($proxy && $uscheme eq "https") {	933	if ($proxy && $uscheme eq "https") {
730	# oh dear, we have to wrap it into a connect request	934	# oh dear, we have to wrap it into a connect request
731		935
732	# maybe re-use $uauthority with patched port?	936	# maybe re-use $uauthority with patched port?
733	$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");
734	$state{handle}->push_read (line => $qr_nlnl, sub {	938	$state{handle}->push_read (line => $qr_nlnl, sub {
735	$_[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
736	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])" }));
737		941
738	if ($2 == 200) {	942	if ($2 == 200) {
739	$rpath = $upath;	943	$rpath = $upath;
740	&$handle_actual_request;	944	$handle_actual_request->();
741	} else {	945	} else {
742	%state = ();	946	%state = ();
743	$cb->(undef, { Status => $2, Reason => $3, @pseudo });	947	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
744	}	948	}
745	});	949	});
746	} else {	950	} else {
747	&$handle_actual_request;	951	$handle_actual_request->();
748	}	952	}
		953	};
749		954
750	}, $arg{on_prepare} \|\| sub { $timeout };	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 });
751	};	959	};
752		960
753	defined wantarray && AnyEvent::Util::guard { %state = () }	961	defined wantarray && AnyEvent::Util::guard { %state = () }
754	}	962	}
755		963
…		…
790	string of the form C<http://host:port> (optionally C<https:...>), croaks	998	string of the form C<http://host:port> (optionally C<https:...>), croaks
791	otherwise.	999	otherwise.
792		1000
793	To clear an already-set proxy, use C<undef>.	1001	To clear an already-set proxy, use C<undef>.
794		1002
		1003	=item AnyEvent::HTTP::cookie_jar_expire $jar[, $session_end]
		1004
		1005	Remove all cookies from the cookie jar that have been expired. If
		1006	C<$session_end> is given and true, then additionally remove all session
		1007	cookies.
		1008
		1009	You should call this function (with a true C<$session_end>) before you
		1010	save cookies to disk, and you should call this function after loading them
		1011	again. If you have a long-running program you can additonally call this
		1012	function from time to time.
		1013
		1014	A cookie jar is initially an empty hash-reference that is managed by this
		1015	module. It's format is subject to change, but currently it is like this:
		1016
		1017	The key C<version> has to contain C<1>, otherwise the hash gets
		1018	emptied. All other keys are hostnames or IP addresses pointing to
		1019	hash-references. The key for these inner hash references is the
		1020	server path for which this cookie is meant, and the values are again
		1021	hash-references. The keys of those hash-references is the cookie name, and
		1022	the value, you guessed it, is another hash-reference, this time with the
		1023	key-value pairs from the cookie, except for C<expires> and C<max-age>,
		1024	which have been replaced by a C<_expires> key that contains the cookie
		1025	expiry timestamp.
		1026
		1027	Here is an example of a cookie jar with a single cookie, so you have a
		1028	chance of understanding the above paragraph:
		1029
		1030	{
		1031	version => 1,
		1032	"10.0.0.1" => {
		1033	"/" => {
		1034	"mythweb_id" => {
		1035	_expires => 1293917923,
		1036	value => "ooRung9dThee3ooyXooM1Ohm",
		1037	},
		1038	},
		1039	},
		1040	}
		1041
		1042	=item $date = AnyEvent::HTTP::format_date $timestamp
		1043
		1044	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
		1045	Date (RFC 2616).
		1046
		1047	=item $timestamp = AnyEvent::HTTP::parse_date $date
		1048
		1049	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) or a
		1050	bunch of minor variations of those, and returns the corresponding POSIX
		1051	timestamp, or C<undef> if the date cannot be parsed.
		1052
795	=item $AnyEvent::HTTP::MAX_RECURSE	1053	=item $AnyEvent::HTTP::MAX_RECURSE
796		1054
797	The default value for the C<recurse> request parameter (default: C<10>).	1055	The default value for the C<recurse> request parameter (default: C<10>).
798		1056
799	=item $AnyEvent::HTTP::USERAGENT	1057	=item $AnyEvent::HTTP::USERAGENT
…		…
817	connections. This number of can be useful for load-leveling.	1075	connections. This number of can be useful for load-leveling.
818		1076
819	=back	1077	=back
820		1078
821	=cut	1079	=cut
		1080
		1081	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		1082	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		1083
		1084	sub format_date($) {
		1085	my ($time) = @_;
		1086
		1087	# RFC 822/1123 format
		1088	my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time;
		1089
		1090	sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT",
		1091	$weekday[$wday], $mday, $month[$mon], $year + 1900,
		1092	$H, $M, $S;
		1093	}
		1094
		1095	sub parse_date($) {
		1096	my ($date) = @_;
		1097
		1098	my ($d, $m, $y, $H, $M, $S);
		1099
		1100	if ($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$/) {
		1101	# RFC 822/1123, required by RFC 2616 (with " ")
		1102	# cookie dates (with "-")
		1103
		1104	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
		1105
		1106	} elsif ($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$/) {
		1107	# RFC 850
		1108	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
		1109
		1110	} elsif ($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])$/) {
		1111	# ISO C's asctime
		1112	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
		1113	}
		1114	# other formats fail in the loop below
		1115
		1116	for (0..11) {
		1117	if ($m eq $month[$_]) {
		1118	require Time::Local;
		1119	return Time::Local::timegm ($S, $M, $H, $d, $_, $y);
		1120	}
		1121	}
		1122
		1123	undef
		1124	}
822		1125
823	sub set_proxy($) {	1126	sub set_proxy($) {
824	if (length $_[0]) {	1127	if (length $_[0]) {
825	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix	1128	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
826	or Carp::croak "$_[0]: invalid proxy URL";	1129	or Carp::croak "$_[0]: invalid proxy URL";
…		…
833	# initialise proxy from environment	1136	# initialise proxy from environment
834	eval {	1137	eval {
835	set_proxy $ENV{http_proxy};	1138	set_proxy $ENV{http_proxy};
836	};	1139	};
837		1140
		1141	=head2 SOCKS PROXIES
		1142
		1143	Socks proxies are not directly supported by AnyEvent::HTTP. You can
		1144	compile your perl to support socks, or use an external program such as
		1145	F<socksify> (dante) or F<tsocks> to make your program use a socks proxy
		1146	transparently.
		1147
		1148	Alternatively, for AnyEvent::HTTP only, you can use your own
		1149	C<tcp_connect> function that does the proxy handshake - here is an example
		1150	that works with socks4a proxies:
		1151
		1152	use Errno;
		1153	use AnyEvent::Util;
		1154	use AnyEvent::Socket;
		1155	use AnyEvent::Handle;
		1156
		1157	# host, port and username of/for your socks4a proxy
		1158	my $socks_host = "10.0.0.23";
		1159	my $socks_port = 9050;
		1160	my $socks_user = "";
		1161
		1162	sub socks4a_connect {
		1163	my ($host, $port, $connect_cb, $prepare_cb) = @_;
		1164
		1165	my $hdl = new AnyEvent::Handle
		1166	connect => [$socks_host, $socks_port],
		1167	on_prepare => sub { $prepare_cb->($_[0]{fh}) },
		1168	on_error => sub { $connect_cb->() },
		1169	;
		1170
		1171	$hdl->push_write (pack "CCnNZZ", 4, 1, $port, 1, $socks_user, $host);
		1172
		1173	$hdl->push_read (chunk => 8, sub {
		1174	my ($hdl, $chunk) = @_;
		1175	my ($status, $port, $ipn) = unpack "xCna4", $chunk;
		1176
		1177	if ($status == 0x5a) {
		1178	$connect_cb->($hdl->{fh}, (format_address $ipn) . ":$port");
		1179	} else {
		1180	$! = Errno::ENXIO; $connect_cb->();
		1181	}
		1182	});
		1183
		1184	$hdl
		1185	}
		1186
		1187	Use C<socks4a_connect> instead of C<tcp_connect> when doing C<http_request>s,
		1188	possibly after switching off other proxy types:
		1189
		1190	AnyEvent::HTTP::set_proxy undef; # usually you do not want other proxies
		1191
		1192	http_get 'http://www.google.com', tcp_connect => \&socks4a_connect, sub {
		1193	my ($data, $headers) = @_;
		1194	...
		1195	};
		1196
838	=head1 SEE ALSO	1197	=head1 SEE ALSO
839		1198
840	L<AnyEvent>.	1199	L<AnyEvent>.
841		1200
842	=head1 AUTHOR	1201	=head1 AUTHOR

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.56 by root, Mon Sep 6 05:30:54 2010 UTC vs. Revision 1.82 by root, Sun Jan 2 04:50:40 2011 UTC

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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.56 by root, Mon Sep 6 05:30:54 2010 UTC vs.
Revision 1.82 by root, Sun Jan 2 04:50:40 2011 UTC