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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.55 by root, Wed Jun 16 19:17:30 2010 UTC vs.
Revision 1.78 by root, Sat Jan 1 19:32:41 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 will
186	get updated automatically. It is possible to save the cookie_jar to	202	get updated automatically. It is possible to save the cookie jar to
187	persistent storage with something like JSON or Storable, but this is not	203	persistent storage with something like JSON or Storable, but this is not
188	recommended, as expiry times are currently being ignored.	204	recommended, as session-only cookies might survive longer than expected.
189		205
190	Note that this cookie implementation is not of very high quality, nor	206	Note that this cookie implementation is not meant to be complete. If
191	meant to be complete. If you want complete cookie management you have to	207	you want complete cookie management you have to do that on your
192	do that on your own. C<cookie_jar> is meant as a quick fix to get some	208	own. C<cookie_jar> is meant as a quick fix to get some cookie-using sites
193	cookie-using sites working. Cookies are a privacy disaster, do not use	209	working. Cookies are a privacy disaster, do not use them unless required
194	them unless required to.	210	to.
		211
		212	When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:>
		213	headers will be set and handled by this module, otherwise they will be
		214	left untouched.
195		215
196	=item tls_ctx => $scheme \| $tls_ctx	216	=item tls_ctx => $scheme \| $tls_ctx
197		217
198	Specifies the AnyEvent::TLS context to be used for https connections. This	218	Specifies the AnyEvent::TLS context to be used for https connections. This
199	parameter follows the same rules as the C<tls_ctx> parameter to	219	parameter follows the same rules as the C<tls_ctx> parameter to
…		…
212	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>	232	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>
213	and behaves exactly the same way (e.g. it has to provide a	233	and behaves exactly the same way (e.g. it has to provide a
214	timeout). See the description for the C<$prepare_cb> argument of	234	timeout). See the description for the C<$prepare_cb> argument of
215	C<AnyEvent::Socket::tcp_connect> for details.	235	C<AnyEvent::Socket::tcp_connect> for details.
216		236
		237	=item tcp_connect => $callback->($host, $service, $connect_cb, $prepare_cb)
		238
		239	In even rarer cases you want total control over how AnyEvent::HTTP
		240	establishes connections. Normally it uses L<AnyEvent::Socket::tcp_connect>
		241	to do this, but you can provide your own C<tcp_connect> function -
		242	obviously, it has to follow the same calling conventions, except that it
		243	may always return a connection guard object.
		244
		245	There are probably lots of weird uses for this function, starting from
		246	tracing the hosts C<http_request> actually tries to connect, to (inexact
		247	but fast) host => IP address caching or even socks protocol support.
		248
217	=item on_header => $callback->($headers)	249	=item on_header => $callback->($headers)
218		250
219	When specified, this callback will be called with the header hash as soon	251	When specified, this callback will be called with the header hash as soon
220	as headers have been successfully received from the remote server (not on	252	as headers have been successfully received from the remote server (not on
221	locally-generated errors).	253	locally-generated errors).
…		…
226		258
227	This callback is useful, among other things, to quickly reject unwanted	259	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	260	content, which, if it is supposed to be rare, can be faster than first
229	doing a C<HEAD> request.	261	doing a C<HEAD> request.
230		262
		263	The downside is that cancelling the request makes it impossible to re-use
		264	the connection. Also, the C<on_header> callback will not receive any
		265	trailer (headers sent after the response body).
		266
231	Example: cancel the request unless the content-type is "text/html".	267	Example: cancel the request unless the content-type is "text/html".
232		268
233	on_header => sub {	269	on_header => sub {
234	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	270	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
235	},	271	},
…		…
241	string instead of the body data.	277	string instead of the body data.
242		278
243	It has to return either true (in which case AnyEvent::HTTP will continue),	279	It has to return either true (in which case AnyEvent::HTTP will continue),
244	or false, in which case AnyEvent::HTTP will cancel the download (and call	280	or false, in which case AnyEvent::HTTP will cancel the download (and call
245	the completion callback with an error code of C<598>).	281	the completion callback with an error code of C<598>).
		282
		283	The downside to cancelling the request is that it makes it impossible to
		284	re-use the connection.
246		285
247	This callback is useful when the data is too large to be held in memory	286	This callback is useful when the data is too large to be held in memory
248	(so the callback writes it to a file) or when only some information should	287	(so the callback writes it to a file) or when only some information should
249	be extracted, or when the body should be processed incrementally.	288	be extracted, or when the body should be processed incrementally.
250		289
…		…
276	If you think you need this, first have a look at C<on_body>, to see if	315	If you think you need this, first have a look at C<on_body>, to see if
277	that doesn't solve your problem in a better way.	316	that doesn't solve your problem in a better way.
278		317
279	=back	318	=back
280		319
281	Example: make a simple HTTP GET request for http://www.nethype.de/	320	Example: do a simple HTTP GET request for http://www.nethype.de/ and print
		321	the response body.
282		322
283	http_request GET => "http://www.nethype.de/", sub {	323	http_request GET => "http://www.nethype.de/", sub {
284	my ($body, $hdr) = @_;	324	my ($body, $hdr) = @_;
285	print "$body\n";	325	print "$body\n";
286	};	326	};
287		327
288	Example: make a HTTP HEAD request on https://www.google.com/, use a	328	Example: do a HTTP HEAD request on https://www.google.com/, use a
289	timeout of 30 seconds.	329	timeout of 30 seconds.
290		330
291	http_request	331	http_request
292	GET => "https://www.google.com",	332	GET => "https://www.google.com",
293	timeout => 30,	333	timeout => 30,
…		…
296	use Data::Dumper;	336	use Data::Dumper;
297	print Dumper $hdr;	337	print Dumper $hdr;
298	}	338	}
299	;	339	;
300		340
301	Example: make another simple HTTP GET request, but immediately try to	341	Example: do another simple HTTP GET request, but immediately try to
302	cancel it.	342	cancel it.
303		343
304	my $request = http_request GET => "http://www.nethype.de/", sub {	344	my $request = http_request GET => "http://www.nethype.de/", sub {
305	my ($body, $hdr) = @_;	345	my ($body, $hdr) = @_;
306	print "$body\n";	346	print "$body\n";
…		…
338	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	378	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
339		379
340	_slot_schedule $_[0];	380	_slot_schedule $_[0];
341	}	381	}
342		382
343	our $qr_nl = qr{\015?\012};	383	# extract cookies from jar
		384	sub cookie_jar_extract($$$$) {
		385	my ($jar, $uscheme, $uhost, $upath) = @_;
		386
		387	%$jar = () if $jar->{version} != 1;
		388
		389	my @cookies;
		390
		391	while (my ($chost, $paths) = each %$jar) {
		392	next unless ref $paths;
		393
		394	if ($chost =~ /^\./) {
		395	next unless $chost eq substr $uhost, -length $chost;
		396	} elsif ($chost =~ /\./) {
		397	next unless $chost eq $uhost;
		398	} else {
		399	next;
		400	}
		401
		402	while (my ($cpath, $cookies) = each %$paths) {
		403	next unless $cpath eq substr $upath, 0, length $cpath;
		404
		405	while (my ($cookie, $kv) = each %$cookies) {
		406	next if $uscheme ne "https" && exists $kv->{secure};
		407
		408	if (exists $kv->{expires}) {
		409	if (AE::now > parse_date ($kv->{expires})) {
		410	delete $cookies->{$cookie};
		411	next;
		412	}
		413	}
		414
		415	my $value = $kv->{value};
		416
		417	if ($value =~ /[=;,[:space:]]/) {
		418	$value =~ s/([\\"])/\\$1/g;
		419	$value = "\"$value\"";
		420	}
		421
		422	push @cookies, "$cookie=$value";
		423	}
		424	}
		425	}
		426
		427	\@cookies
		428	}
		429
		430	# parse set_cookie header into jar
		431	sub cookie_jar_set_cookie($$$) {
		432	my ($jar, $set_cookie, $uhost) = @_;
		433
		434	for ($set_cookie) {
		435	# parse NAME=VALUE
		436	my @kv;
		437
		438	while (
		439	m{
		440	\G\s*
		441	(?:
		442	expires \s=\s ([A-Z][a-z][a-z],\ [^,;]+)
		443	\| ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )
		444	)
		445	}gcxsi
		446	) {
		447	my $name = $2;
		448	my $value = $4;
		449
		450	unless (defined $name) {
		451	# expires
		452	$name = "expires";
		453	$value = $1;
		454	} elsif (!defined $value) {
		455	# quoted
		456	$value = $3;
		457	$value =~ s/\\(.)/$1/gs;
		458	}
		459
		460	push @kv, lc $name, $value;
		461
		462	last unless /\G\s*;/gc;
		463	}
		464
		465	last unless @kv;
		466
		467	my $name = shift @kv;
		468	my %kv = (value => shift @kv, @kv);
		469
		470	$kv{expires} \|\|= format_date (AE::now + $kv{"max-age"})
		471	if exists $kv{"max-age"};
		472
		473	my $cdom;
		474	my $cpath = (delete $kv{path}) \|\| "/";
		475
		476	if (exists $kv{domain}) {
		477	$cdom = delete $kv{domain};
		478
		479	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		480
		481	next if $cdom =~ /\.$/;
		482
		483	# this is not rfc-like and not netscape-like. go figure.
		484	my $ndots = $cdom =~ y/.//;
		485	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		486	} else {
		487	$cdom = $uhost;
		488	}
		489
		490	# store it
		491	$jar->{version} = 1;
		492	$jar->{$cdom}{$cpath}{$name} = \%kv;
		493
		494	redo if /\G\s*,/gc;
		495	}
		496	}
		497
		498	# continue to parse $_ for headers and place them into the arg
		499	sub parse_hdr() {
		500	my %hdr;
		501
		502	# things seen, not parsed:
		503	# p3pP="NON CUR OTPi OUR NOR UNI"
		504
		505	$hdr{lc $1} .= ",$2"
		506	while /\G
		507	([^:\000-\037]*):
		508	[\011\040]*
		509	((?: [^\012]+ \| \012[\011\040] )*)
		510	\012
		511	/gxc;
		512
		513	/\G$/
		514	or return;
		515
		516	# remove the "," prefix we added to all headers above
		517	substr $_, 0, 1, ""
		518	for values %hdr;
		519
		520	\%hdr
		521	}
		522
344	our $qr_nlnl = qr{(?<![^\012])\015?\012};	523	our $qr_nlnl = qr{(?<![^\012])\015?\012};
345		524
346	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	525	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
347	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	526	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
348		527
…		…
367	my @pseudo = (URL => $url);	546	my @pseudo = (URL => $url);
368	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};	547	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
369		548
370	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	549	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
371		550
372	return $cb->(undef, { Status => 599, Reason => "Too many redirections", @pseudo })	551	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
373	if $recurse < 0;	552	if $recurse < 0;
374		553
375	my $proxy = $arg{proxy} \|\| $PROXY;	554	my $proxy = $arg{proxy} \|\| $PROXY;
376	my $timeout = $arg{timeout} \|\| $TIMEOUT;	555	my $timeout = $arg{timeout} \|\| $TIMEOUT;
377		556
378	my ($uscheme, $uauthority, $upath, $query, $fragment) =	557	my ($uscheme, $uauthority, $upath, $query, $fragment) =
379	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:\?([^#]))?(?:#(.))?\|;	558	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:(\?[^#]))?(?:#(.))?\|;
380		559
381	$uscheme = lc $uscheme;	560	$uscheme = lc $uscheme;
382		561
383	my $uport = $uscheme eq "http" ? 80	562	my $uport = $uscheme eq "http" ? 80
384	: $uscheme eq "https" ? 443	563	: $uscheme eq "https" ? 443
385	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", @pseudo });	564	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
386		565
387	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	566	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
388	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", @pseudo });	567	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
389		568
390	my $uhost = $1;	569	my $uhost = $1;
391	$uport = $2 if defined $2;	570	$uport = $2 if defined $2;
392		571
393	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"	572	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
394	unless exists $hdr{host};	573	unless exists $hdr{host};
395		574
396	$uhost =~ s/^\[(.*)\]$/$1/;	575	$uhost =~ s/^\[(.*)\]$/$1/;
397	$upath .= "?$query" if length $query;	576	$upath .= $query if length $query;
398		577
399	$upath =~ s%^/?%/%;	578	$upath =~ s%^/?%/%;
400		579
401	# cookie processing	580	# cookie processing
402	if (my $jar = $arg{cookie_jar}) {	581	if (my $jar = $arg{cookie_jar}) {
403	%$jar = () if $jar->{version} != 1;	582	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
404		583
405	my @cookie;
406
407	while (my ($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	584	$hdr{cookie} = join "; ", @$cookies
429	if @cookie;	585	if @$cookies;
430	}	586	}
431		587
432	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	588	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
433		589
434	if ($proxy) {	590	if ($proxy) {
…		…
442	} else {	598	} else {
443	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	599	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
444	}	600	}
445		601
446	# leave out fragment and query string, just a heuristic	602	# leave out fragment and query string, just a heuristic
447	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	603	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
448	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	604	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
449		605
450	$hdr{"content-length"} = length $arg{body}	606	$hdr{"content-length"} = length $arg{body}
451	if length $arg{body} \|\| $method ne "GET";	607	if length $arg{body} \|\| $method ne "GET";
452		608
		609	$hdr{connection} = "close TE"; #1.1
		610	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
		611
453	my %state = (connect_guard => 1);	612	my %state = (connect_guard => 1);
454		613
455	_get_slot $uhost, sub {	614	_get_slot $uhost, sub {
456	$state{slot_guard} = shift;	615	$state{slot_guard} = shift;
457		616
458	return unless $state{connect_guard};	617	return unless $state{connect_guard};
459		618
460	$state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {	619	my $ae_error = 595; # connecting
		620
		621	my $connect_cb = sub {
461	$state{fh} = shift	622	$state{fh} = shift
462	or do {	623	or do {
463	my $err = "$!";	624	my $err = "$!";
464	%state = ();	625	%state = ();
465	return $cb->(undef, { Status => 599, Reason => $err, @pseudo });	626	return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err });
466	};	627	};
467
468	pop; # free memory, save a tree
469		628
470	return unless delete $state{connect_guard};	629	return unless delete $state{connect_guard};
471		630
472	# get handle	631	# get handle
473	$state{handle} = new AnyEvent::Handle	632	$state{handle} = new AnyEvent::Handle
474	fh => $state{fh},	633	fh => $state{fh},
		634	peername => $rhost,
		635	tls_ctx => $arg{tls_ctx},
		636	# these need to be reconfigured on keepalive handles
475	timeout => $timeout,	637	timeout => $timeout,
476	peername => $rhost,	638	on_error => sub {
477	tls_ctx => $arg{tls_ctx};	639	%state = ();
		640	$cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] });
		641	},
		642	on_eof => sub {
		643	%state = ();
		644	$cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" });
		645	},
		646	;
478		647
479	# limit the number of persistent connections	648	# limit the number of persistent connections
480	# keepalive not yet supported	649	# keepalive not yet supported
481	if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	650	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
482	++$KA_COUNT{$_[1]};	651	# ++$KA_COUNT{$_[1]};
483	$state{handle}{ka_count_guard} = AnyEvent::Util::guard {	652	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
484	--$KA_COUNT{$_[1]}	653	# --$KA_COUNT{$_[1]}
485	};	654	# };
486	$hdr{connection} = "keep-alive";	655	# $hdr{connection} = "keep-alive";
487	} else {
488	delete $hdr{connection};
489	}	656	# }
490
491	# (re-)configure handle
492	$state{handle}->on_error (sub {
493	%state = ();
494	$cb->(undef, { Status => 599, Reason => $_[2], @pseudo });
495	});
496	$state{handle}->on_eof (sub {
497	%state = ();
498	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", @pseudo });
499	});
500		657
501	$state{handle}->starttls ("connect") if $rscheme eq "https";	658	$state{handle}->starttls ("connect") if $rscheme eq "https";
502		659
503	# handle actual, non-tunneled, request	660	# handle actual, non-tunneled, request
504	my $handle_actual_request = sub {	661	my $handle_actual_request = sub {
		662	$ae_error = 596; # request phase
		663
505	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	664	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
506		665
507	# send request	666	# send request
508	$state{handle}->push_write (	667	$state{handle}->push_write (
509	"$method $rpath HTTP/1.0\015\012"	668	"$method $rpath HTTP/1.1\015\012"
510	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	669	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
511	. "\015\012"	670	. "\015\012"
512	. (delete $arg{body})	671	. (delete $arg{body})
513	);	672	);
514		673
515	# return if error occured during push_write()	674	# return if error occured during push_write()
516	return unless %state;	675	return unless %state;
517		676
518	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use	677	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
519		678
520	# status line	679	# status line and headers
521	$state{handle}->push_read (line => $qr_nl, sub {	680	$state{read_response} = 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]") {	681	for ("$_[1]") {
534	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	682	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
535		683
536	# things seen, not parsed:	684	/^HTTP\/0([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]) )? \012/gxci
537	# p3pP="NON CUR OTPi OUR NOR UNI"	685	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
538		686
539	$hdr{lc $1} .= ",$2"	687	# 100 Continue handling
540	while /\G	688	# should not happen as we don't send expect: 100-continue,
541	([^:\000-\037]*):	689	# but we handle it just in case.
542	[\011\040]*	690	# since we send the request body regardless, if we get an error
543	((?: [^\012]+ \| \012[\011\040] )*)	691	# we are out of-sync, which we currently do NOT handle correctly.
544	\012	692	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
545	/gxc;	693	if $2 eq 100;
546		694
		695	push @pseudo,
		696	HTTPVersion => $1,
		697	Status => $2,
		698	Reason => $3,
547	/\G$/	699	;
		700
		701	my $hdr = parse_hdr
548	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", @pseudo }));	702	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		703
		704	%hdr = (%$hdr, @pseudo);
		705	}
		706
		707	# redirect handling
		708	# microsoft and other shitheads don't give a shit for following standards,
		709	# try to support some common forms of broken Location headers.
		710	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		711	$hdr{location} =~ s/^\.\/+//;
		712
		713	my $url = "$rscheme://$uhost:$uport";
		714
		715	unless ($hdr{location} =~ s/^\///) {
		716	$url .= $upath;
		717	$url =~ s/\/[^\/]*$//;
549	}	718	}
550		719
551	# remove the "," prefix we added to all headers above	720	$hdr{location} = "$url/$hdr{location}";
552	substr $_, 0, 1, ""	721	}
553	for values %hdr;
554		722
555	# patch in all pseudo headers	723	my $redirect;
556	%hdr = (%hdr, @pseudo);
557		724
		725	if ($recurse) {
		726	my $status = $hdr{Status};
		727
		728	# industry standard is to redirect POST as GET for
		729	# 301, 302 and 303, in contrast to HTTP/1.0 and 1.1.
		730	# also, the UA should ask the user for 301 and 307 and POST,
		731	# industry standard seems to be to simply follow.
		732	# we go with the industry standard.
		733	if ($status == 301 or $status == 302 or $status == 303) {
		734	# HTTP/1.1 is unclear on how to mutate the method
		735	$method = "GET" unless $method eq "HEAD";
558	# redirect handling	736	$redirect = 1;
559	# microsoft and other shitheads don't give a shit for following standards,	737	} elsif ($status == 307) {
560	# try to support some common forms of broken Location headers.	738	$redirect = 1;
561	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {	739	}
562	$hdr{location} =~ s/^\.\/+//;	740	}
563		741
564	my $url = "$rscheme://$uhost:$uport";	742	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
		743	my $may_keep_alive = $_[3];
565		744
566	unless ($hdr{location} =~ s/^\///) {	745	$state{handle}->destroy if $state{handle};
		746	%state = ();
		747
		748	if (defined $_[1]) {
		749	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		750	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		751	}
		752
		753	# set-cookie processing
		754	if ($arg{cookie_jar}) {
		755	cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost;
		756	}
		757
		758	if ($redirect && exists $hdr{location}) {
		759	# we ignore any errors, as it is very common to receive
		760	# Content-Length != 0 but no actual body
		761	# we also access %hdr, as $_[1] might be an erro
		762	http_request (
		763	$method => $hdr{location},
		764	%arg,
		765	recurse => $recurse - 1,
		766	Redirect => [$_[0], \%hdr],
		767	$cb);
		768	} else {
		769	$cb->($_[0], \%hdr);
		770	}
		771	};
		772
		773	$ae_error = 597; # body phase
		774
		775	my $len = $hdr{"content-length"};
		776
		777	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		778	$finish->(undef, 598 => "Request cancelled by on_header");
		779	} elsif (
		780	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		781	or $method eq "HEAD"
		782	or (defined $len && !$len)
		783	) {
		784	# no body
		785	$finish->("", undef, undef, 1);
		786	} else {
		787	# body handling, many different code paths
		788	# - no body expected
		789	# - want_body_handle
		790	# - te chunked
		791	# - 2x length known (with or without on_body)
		792	# - 2x length not known (with or without on_body)
		793	if (!$redirect && $arg{want_body_handle}) {
		794	$_[0]->on_eof (undef);
		795	$_[0]->on_error (undef);
		796	$_[0]->on_read (undef);
		797
		798	$finish->(delete $state{handle});
		799
		800	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		801	my $cl = 0;
		802	my $body = undef;
		803	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		804
		805	my $read_chunk; $read_chunk = sub {
		806	$_[1] =~ /^([0-9a-fA-F]+)/
		807	or $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		808
		809	my $len = hex $1;
		810
		811	if ($len) {
567	$url .= $upath;	812	$cl += $len;
568	$url =~ s/\/[^\/]*$//;	813
		814	$_[0]->push_read (chunk => $len, sub {
		815	$on_body->($_[1], \%hdr)
		816	or return $finish->(undef, 598 => "Request cancelled by on_body");
		817
		818	$_[0]->push_read (line => sub {
		819	length $_[1]
		820	and return $finish->(undef, $ae_error => "Garbled chunked transfer encoding");
		821	$_[0]->push_read (line => $read_chunk);
		822	});
		823	});
		824	} else {
		825	$hdr{"content-length"} \|\|= $cl;
		826
		827	$_[0]->push_read (line => $qr_nlnl, sub {
		828	if (length $_[1]) {
		829	for ("$_[1]") {
		830	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		831
		832	my $hdr = parse_hdr
		833	or return $finish->(undef, $ae_error => "Garbled response trailers");
		834
		835	%hdr = (%hdr, %$hdr);
		836	}
		837	}
		838
		839	$finish->($body, undef, undef, 1);
		840	});
		841	}
		842	};
		843
		844	$_[0]->push_read (line => $read_chunk);
		845
		846	} elsif ($arg{on_body}) {
		847	if ($len) {
		848	$_[0]->on_read (sub {
		849	$len -= length $_[0]{rbuf};
		850
		851	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		852	or return $finish->(undef, 598 => "Request cancelled by on_body");
		853
		854	$len > 0
		855	or $finish->("", undef, undef, 1);
		856	});
		857	} else {
		858	$_[0]->on_eof (sub {
		859	$finish->("");
		860	});
		861	$_[0]->on_read (sub {
		862	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		863	or $finish->(undef, 598 => "Request cancelled by on_body");
		864	});
569	}	865	}
570
571	$hdr{location} = "$url/$hdr{location}";
572	}	866	} else {
		867	$_[0]->on_eof (undef);
573		868
574	my $redirect;
575
576	if ($recurse) {	869	if ($len) {
577	my $status = $hdr{Status};	870	$_[0]->on_read (sub {
578		871	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
579	if (($status == 301 \|\| $status == 302) && $method ne "POST") {	872	if $len <= length $_[0]{rbuf};
580	# apparently, mozilla et al. just change POST to GET here
581	# more research is needed before we do the same
582	$redirect = 1;	873	});
583	} elsif ($status == 303) {	874	} else {
584	# even http/1.1 is unclear on how to mutate the method	875	$_[0]->on_error (sub {
585	$method = "GET" unless $method eq "HEAD";	876	($! == Errno::EPIPE \|\| !$!)
		877	? $finish->(delete $_[0]{rbuf})
		878	: $finish->(undef, $ae_error => $_[2]);
586	$redirect = 1;	879	});
587	} elsif ($status == 307 && $method =~ /^(?:GET\|HEAD)$/) {	880	$_[0]->on_read (sub { });
588	$redirect = 1;
589	}	881	}
590	}	882	}
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	});	883	}
725	});	884	};
		885
		886	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
726	};	887	};
727		888
728	# now handle proxy-CONNECT method	889	# now handle proxy-CONNECT method
729	if ($proxy && $uscheme eq "https") {	890	if ($proxy && $uscheme eq "https") {
730	# oh dear, we have to wrap it into a connect request	891	# oh dear, we have to wrap it into a connect request
731		892
732	# maybe re-use $uauthority with patched port?	893	# 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");	894	$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 {	895	$state{handle}->push_read (line => $qr_nlnl, sub {
735	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	896	$_[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 }));	897	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
737		898
738	if ($2 == 200) {	899	if ($2 == 200) {
739	$rpath = $upath;	900	$rpath = $upath;
740	&$handle_actual_request;	901	&$handle_actual_request;
741	} else {	902	} else {
742	%state = ();	903	%state = ();
743	$cb->(undef, { Status => $2, Reason => $3, @pseudo });	904	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
744	}	905	}
745	});	906	});
746	} else {	907	} else {
747	&$handle_actual_request;	908	&$handle_actual_request;
748	}	909	}
		910	};
749		911
750	}, $arg{on_prepare} \|\| sub { $timeout };	912	my $tcp_connect = $arg{tcp_connect}
		913	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		914
		915	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		916
751	};	917	};
752		918
753	defined wantarray && AnyEvent::Util::guard { %state = () }	919	defined wantarray && AnyEvent::Util::guard { %state = () }
754	}	920	}
755		921
…		…
790	string of the form C<http://host:port> (optionally C<https:...>), croaks	956	string of the form C<http://host:port> (optionally C<https:...>), croaks
791	otherwise.	957	otherwise.
792		958
793	To clear an already-set proxy, use C<undef>.	959	To clear an already-set proxy, use C<undef>.
794		960
		961	=item $date = AnyEvent::HTTP::format_date $timestamp
		962
		963	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
		964	Date (RFC 2616).
		965
		966	=item $timestamp = AnyEvent::HTTP::parse_date $date
		967
		968	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) and
		969	returns the corresponding POSIX timestamp, or C<undef> if the date cannot
		970	be parsed.
		971
795	=item $AnyEvent::HTTP::MAX_RECURSE	972	=item $AnyEvent::HTTP::MAX_RECURSE
796		973
797	The default value for the C<recurse> request parameter (default: C<10>).	974	The default value for the C<recurse> request parameter (default: C<10>).
798		975
799	=item $AnyEvent::HTTP::USERAGENT	976	=item $AnyEvent::HTTP::USERAGENT
…		…
817	connections. This number of can be useful for load-leveling.	994	connections. This number of can be useful for load-leveling.
818		995
819	=back	996	=back
820		997
821	=cut	998	=cut
		999
		1000	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		1001	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		1002
		1003	sub format_date($) {
		1004	my ($time) = @_;
		1005
		1006	# RFC 822/1123 format
		1007	my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time;
		1008
		1009	sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT",
		1010	$weekday[$wday], $mday, $month[$mon], $year + 1900,
		1011	$H, $M, $S;
		1012	}
		1013
		1014	sub parse_date($) {
		1015	my ($date) = @_;
		1016
		1017	my ($d, $m, $y, $H, $M, $S);
		1018
		1019	if ($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$/) {
		1020	# RFC 822/1123, required by RFC 2616 (with " ")
		1021	# cookie dates (with "-")
		1022
		1023	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
		1024
		1025	} elsif ($date =~ /^[A-Z][a-z]+, ([0-9][0-9])-([A-Z][a-z][a-z])-([0-9][0-9]) ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) GMT$/) {
		1026	# RFC 850
		1027	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
		1028
		1029	} elsif ($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])$/) {
		1030	# ISO C's asctime
		1031	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
		1032	}
		1033	# other formats fail in the loop below
		1034
		1035	for (0..11) {
		1036	if ($m eq $month[$_]) {
		1037	require Time::Local;
		1038	return Time::Local::timegm ($S, $M, $H, $d, $_, $y);
		1039	}
		1040	}
		1041
		1042	undef
		1043	}
822		1044
823	sub set_proxy($) {	1045	sub set_proxy($) {
824	if (length $_[0]) {	1046	if (length $_[0]) {
825	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix	1047	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
826	or Carp::croak "$_[0]: invalid proxy URL";	1048	or Carp::croak "$_[0]: invalid proxy URL";
…		…
833	# initialise proxy from environment	1055	# initialise proxy from environment
834	eval {	1056	eval {
835	set_proxy $ENV{http_proxy};	1057	set_proxy $ENV{http_proxy};
836	};	1058	};
837		1059
		1060	=head2 SOCKS PROXIES
		1061
		1062	Socks proxies are not directly supported by AnyEvent::HTTP. You can
		1063	compile your perl to support socks, or use an external program such as
		1064	F<socksify> (dante) or F<tsocks> to make your program use a socks proxy
		1065	transparently.
		1066
		1067	Alternatively, for AnyEvent::HTTP only, you can use your own
		1068	C<tcp_connect> function that does the proxy handshake - here is an example
		1069	that works with socks4a proxies:
		1070
		1071	use Errno;
		1072	use AnyEvent::Util;
		1073	use AnyEvent::Socket;
		1074	use AnyEvent::Handle;
		1075
		1076	# host, port and username of/for your socks4a proxy
		1077	my $socks_host = "10.0.0.23";
		1078	my $socks_port = 9050;
		1079	my $socks_user = "";
		1080
		1081	sub socks4a_connect {
		1082	my ($host, $port, $connect_cb, $prepare_cb) = @_;
		1083
		1084	my $hdl = new AnyEvent::Handle
		1085	connect => [$socks_host, $socks_port],
		1086	on_prepare => sub { $prepare_cb->($_[0]{fh}) },
		1087	on_error => sub { $connect_cb->() },
		1088	;
		1089
		1090	$hdl->push_write (pack "CCnNZZ", 4, 1, $port, 1, $socks_user, $host);
		1091
		1092	$hdl->push_read (chunk => 8, sub {
		1093	my ($hdl, $chunk) = @_;
		1094	my ($status, $port, $ipn) = unpack "xCna4", $chunk;
		1095
		1096	if ($status == 0x5a) {
		1097	$connect_cb->($hdl->{fh}, (format_address $ipn) . ":$port");
		1098	} else {
		1099	$! = Errno::ENXIO; $connect_cb->();
		1100	}
		1101	});
		1102
		1103	$hdl
		1104	}
		1105
		1106	Use C<socks4a_connect> instead of C<tcp_connect> when doing C<http_request>s,
		1107	possibly after switching off other proxy types:
		1108
		1109	AnyEvent::HTTP::set_proxy undef; # usually you do not want other proxies
		1110
		1111	http_get 'http://www.google.com', tcp_connect => \&socks4a_connect, sub {
		1112	my ($data, $headers) = @_;
		1113	...
		1114	};
		1115
838	=head1 SEE ALSO	1116	=head1 SEE ALSO
839		1117
840	L<AnyEvent>.	1118	L<AnyEvent>.
841		1119
842	=head1 AUTHOR	1120	=head1 AUTHOR

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.55 by root, Wed Jun 16 19:17:30 2010 UTC vs. Revision 1.78 by root, Sat Jan 1 19:32:41 2011 UTC

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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.55 by root, Wed Jun 16 19:17:30 2010 UTC vs.
Revision 1.78 by root, Sat Jan 1 19:32:41 2011 UTC