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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.39 by root, Thu Jun 11 12:46:01 2009 UTC vs.
Revision 1.48 by root, Wed Aug 5 16:09:10 2009 UTC

…		…
39	package AnyEvent::HTTP;	39	package AnyEvent::HTTP;
40		40
41	use strict;	41	use strict;
42	no warnings;	42	no warnings;
43		43
44	use Carp;	44	use Errno ();
45		45
46	use AnyEvent ();	46	use AnyEvent 4.8 ();
47	use AnyEvent::Util ();	47	use AnyEvent::Util ();
48	use AnyEvent::Socket ();	48	use AnyEvent::Socket ();
49	use AnyEvent::Handle ();	49	use AnyEvent::Handle ();
50		50
51	use base Exporter::;	51	use base Exporter::;
52		52
53	our $VERSION = '1.12';	53	our $VERSION = '1.42';
54		54
55	our @EXPORT = qw(http_get http_post http_head http_request);	55	our @EXPORT = qw(http_get http_post http_head http_request);
56		56
57	our $USERAGENT = "Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";	57	our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";
58	our $MAX_RECURSE = 10;	58	our $MAX_RECURSE = 10;
59	our $MAX_PERSISTENT = 8;	59	our $MAX_PERSISTENT = 8;
60	our $PERSISTENT_TIMEOUT = 2;	60	our $PERSISTENT_TIMEOUT = 2;
61	our $TIMEOUT = 300;	61	our $TIMEOUT = 300;
62		62
63	# changing these is evil	63	# changing these is evil
64	our $MAX_PERSISTENT_PER_HOST = 2;	64	our $MAX_PERSISTENT_PER_HOST = 0;
65	our $MAX_PER_HOST = 4;	65	our $MAX_PER_HOST = 4;
66		66
67	our $PROXY;	67	our $PROXY;
68	our $ACTIVE = 0;	68	our $ACTIVE = 0;
69		69
…		…
94	When called in void context, nothing is returned. In other contexts,	94	When called in void context, nothing is returned. In other contexts,
95	C<http_request> returns a "cancellation guard" - you have to keep the	95	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	96	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.	97	destroyed before the callbakc is called, the request will be cancelled.
98		98
99	The callback will be called with the response data as first argument	99	The callback will be called with the response body data as first argument
100	(or C<undef> if it wasn't available due to errors), and a hash-ref with	100	(or C<undef> if an error occured), and a hash-ref with response headers as
101	response headers as second argument.	101	second argument.
102		102
103	All the headers in that hash are lowercased. In addition to the response	103	All the headers in that hash are lowercased. In addition to the response
104	headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason>	104	headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason>
105	contain the three parts of the HTTP Status-Line of the same name. The	105	contain the three parts of the HTTP Status-Line of the same name. The
106	pseudo-header C<URL> contains the original URL (which can differ from the	106	pseudo-header C<URL> contains the original URL (which can differ from the
…		…
108		108
109	If the server sends a header multiple times, then their contents will be	109	If the server sends a header multiple times, then their contents will be
110	joined together with a comma (C<,>), as per the HTTP spec.	110	joined together with a comma (C<,>), as per the HTTP spec.
111		111
112	If an internal error occurs, such as not being able to resolve a hostname,	112	If an internal error occurs, such as not being able to resolve a hostname,
113	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<599>	113	then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<59x>
114	and the C<Reason> pseudo-header will contain an error message.	114	(usually C<599>) and the C<Reason> pseudo-header will contain an error
		115	message.
115		116
116	A typical callback might look like this:	117	A typical callback might look like this:
117		118
118	sub {	119	sub {
119	my ($body, $hdr) = @_;	120	my ($body, $hdr) = @_;
…		…
137		138
138	=item headers => hashref	139	=item headers => hashref
139		140
140	The request headers to use. Currently, C<http_request> may provide its	141	The request headers to use. Currently, C<http_request> may provide its
141	own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers	142	own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers
142	and will provide defaults for C<User-Agent:> and C<Referer:>.	143	and will provide defaults for C<User-Agent:> and C<Referer:> (this can be
		144	suppressed by using C<undef> for these headers in which case they won't be
		145	send at all).
143		146
144	=item timeout => $seconds	147	=item timeout => $seconds
145		148
146	The time-out to use for various stages - each connect attempt will reset	149	The time-out to use for various stages - each connect attempt will reset
147	the timeout, as will read or write activity. Default timeout is 5 minutes.	150	the timeout, as will read or write activity. Default timeout is 5 minutes.
…		…
149	=item proxy => [$host, $port[, $scheme]] or undef	152	=item proxy => [$host, $port[, $scheme]] or undef
150		153
151	Use the given http proxy for all requests. If not specified, then the	154	Use the given http proxy for all requests. If not specified, then the
152	default proxy (as specified by C<$ENV{http_proxy}>) is used.	155	default proxy (as specified by C<$ENV{http_proxy}>) is used.
153		156
154	C<$scheme> must be either missing or C<http> for HTTP, or C<https> for	157	C<$scheme> must be either missing, C<http> for HTTP or C<https> for
155	HTTPS.	158	HTTPS.
156		159
157	=item body => $string	160	=item body => $string
158		161
159	The request body, usually empty. Will be-sent as-is (future versions of	162	The request body, usually empty. Will be-sent as-is (future versions of
…		…
165	based on the original netscape specification.	168	based on the original netscape specification.
166		169
167	The C<$hash_ref> must be an (initially empty) hash reference which will	170	The C<$hash_ref> must be an (initially empty) hash reference which will
168	get updated automatically. It is possible to save the cookie_jar to	171	get updated automatically. It is possible to save the cookie_jar to
169	persistent storage with something like JSON or Storable, but this is not	172	persistent storage with something like JSON or Storable, but this is not
170	recommended, as expire times are currently being ignored.	173	recommended, as expiry times are currently being ignored.
171		174
172	Note that this cookie implementation is not of very high quality, nor	175	Note that this cookie implementation is not of very high quality, nor
173	meant to be complete. If you want complete cookie management you have to	176	meant to be complete. If you want complete cookie management you have to
174	do that on your own. C<cookie_jar> is meant as a quick fix to get some	177	do that on your own. C<cookie_jar> is meant as a quick fix to get some
175	cookie-using sites working. Cookies are a privacy disaster, do not use	178	cookie-using sites working. Cookies are a privacy disaster, do not use
176	them unless required to.	179	them unless required to.
		180
		181	=item tls_ctx => $scheme \| $tls_ctx
		182
		183	Specifies the AnyEvent::TLS context to be used for https connections. This
		184	parameter follows the same rules as the C<tls_ctx> parameter to
		185	L<AnyEvent::Handle>, but additionally, the two strings C<low> or
		186	C<high> can be specified, which give you a predefined low-security (no
		187	verification, highest compatibility) and high-security (CA and common-name
		188	verification) TLS context.
		189
		190	The default for this option is C<low>, which could be interpreted as "give
		191	me the page, no matter what".
		192
		193	=item on_header => $callback->($headers)
		194
		195	When specified, this callback will be called with the header hash as soon
		196	as headers have been successfully received from the remote server (not on
		197	locally-generated errors).
		198
		199	It has to return either true (in which case AnyEvent::HTTP will continue),
		200	or false, in which case AnyEvent::HTTP will cancel the download (and call
		201	the finish callback with an error code of C<598>).
		202
		203	This callback is useful, among other things, to quickly reject unwanted
		204	content, which, if it is supposed to be rare, can be faster than first
		205	doing a C<HEAD> request.
		206
		207	Example: cancel the request unless the content-type is "text/html".
		208
		209	on_header => sub {
		210	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
		211	},
		212
		213	=item on_body => $callback->($partial_body, $headers)
		214
		215	When specified, all body data will be passed to this callback instead of
		216	to the completion callback. The completion callback will get the empty
		217	string instead of the body data.
		218
		219	It has to return either true (in which case AnyEvent::HTTP will continue),
		220	or false, in which case AnyEvent::HTTP will cancel the download (and call
		221	the completion callback with an error code of C<598>).
		222
		223	This callback is useful when the data is too large to be held in memory
		224	(so the callback writes it to a file) or when only some information should
		225	be extracted, or when the body should be processed incrementally.
		226
		227	It is usually preferred over doing your own body handling via
		228	C<want_body_handle>, but in case of streaming APIs, where HTTP is
		229	only used to create a connection, C<want_body_handle> is the better
		230	alternative, as it allows you to install your own event handler, reducing
		231	resource usage.
		232
		233	=item want_body_handle => $enable
		234
		235	When enabled (default is disabled), the behaviour of AnyEvent::HTTP
		236	changes considerably: after parsing the headers, and instead of
		237	downloading the body (if any), the completion callback will be
		238	called. Instead of the C<$body> argument containing the body data, the
		239	callback will receive the L<AnyEvent::Handle> object associated with the
		240	connection. In error cases, C<undef> will be passed. When there is no body
		241	(e.g. status C<304>), the empty string will be passed.
		242
		243	The handle object might or might not be in TLS mode, might be connected to
		244	a proxy, be a persistent connection etc., and configured in unspecified
		245	ways. The user is responsible for this handle (it will not be used by this
		246	module anymore).
		247
		248	This is useful with some push-type services, where, after the initial
		249	headers, an interactive protocol is used (typical example would be the
		250	push-style twitter API which starts a JSON/XML stream).
		251
		252	If you think you need this, first have a look at C<on_body>, to see if
		253	that doesn't solve your problem in a better way.
177		254
178	=back	255	=back
179		256
180	Example: make a simple HTTP GET request for http://www.nethype.de/	257	Example: make a simple HTTP GET request for http://www.nethype.de/
181		258
…		…
237	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	314	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
238		315
239	_slot_schedule $_[0];	316	_slot_schedule $_[0];
240	}	317	}
241		318
242	our $qr_nl = qr<\015?\012>;	319	our $qr_nl = qr{\015?\012};
243	our $qr_nlnl = qr<\015?\012\015?\012>;	320	our $qr_nlnl = qr{(?<![^\012])\015?\012};
		321
		322	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
		323	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
244		324
245	sub http_request($$@) {	325	sub http_request($$@) {
246	my $cb = pop;	326	my $cb = pop;
247	my ($method, $url, %arg) = @_;	327	my ($method, $url, %arg) = @_;
248		328
249	my %hdr;	329	my %hdr;
		330
		331	$arg{tls_ctx} = $TLS_CTX_LOW if $arg{tls_ctx} eq "low" \|\| !exists $arg{tls_ctx};
		332	$arg{tls_ctx} = $TLS_CTX_HIGH if $arg{tls_ctx} eq "high";
250		333
251	$method = uc $method;	334	$method = uc $method;
252		335
253	if (my $hdr = $arg{headers}) {	336	if (my $hdr = $arg{headers}) {
254	while (my ($k, $v) = each %$hdr) {	337	while (my ($k, $v) = each %$hdr) {
…		…
256	}	339	}
257	}	340	}
258		341
259	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	342	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
260		343
261	return $cb->(undef, { Status => 599, Reason => "recursion limit reached", URL => $url })	344	return $cb->(undef, { Status => 599, Reason => "Too many redirections", URL => $url })
262	if $recurse < 0;	345	if $recurse < 0;
263		346
264	my $proxy = $arg{proxy} \|\| $PROXY;	347	my $proxy = $arg{proxy} \|\| $PROXY;
265	my $timeout = $arg{timeout} \|\| $TIMEOUT;	348	my $timeout = $arg{timeout} \|\| $TIMEOUT;
266		349
267	$hdr{"user-agent"} \|\|= $USERAGENT;
268
269	my ($uscheme, $uauthority, $upath, $query, $fragment) =	350	my ($uscheme, $uauthority, $upath, $query, $fragment) =
270	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:\?([^#]))?(?:#(.))?\|;	351	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:\?([^#]))?(?:#(.))?\|;
271		352
272	$uscheme = lc $uscheme;	353	$uscheme = lc $uscheme;
273		354
274	my $uport = $uscheme eq "http" ? 80	355	my $uport = $uscheme eq "http" ? 80
275	: $uscheme eq "https" ? 443	356	: $uscheme eq "https" ? 443
276	: return $cb->(undef, { Status => 599, Reason => "only http and https URL schemes supported", URL => $url });	357	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", URL => $url });
277
278	$hdr{referer} \|\|= "$uscheme://$uauthority$upath"; # leave out fragment and query string, just a heuristic
279		358
280	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	359	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
281	or return $cb->(undef, { Status => 599, Reason => "unparsable URL", URL => $url });	360	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", URL => $url });
282		361
283	my $uhost = $1;	362	my $uhost = $1;
284	$uport = $2 if defined $2;	363	$uport = $2 if defined $2;
		364
		365	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost";
285		366
286	$uhost =~ s/^\[(.*)\]$/$1/;	367	$uhost =~ s/^\[(.*)\]$/$1/;
287	$upath .= "?$query" if length $query;	368	$upath .= "?$query" if length $query;
288		369
289	$upath =~ s%^/?%/%;	370	$upath =~ s%^/?%/%;
…		…
322	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	403	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
323		404
324	if ($proxy) {	405	if ($proxy) {
325	($rpath, $rhost, $rport, $rscheme) = ($url, @$proxy);	406	($rpath, $rhost, $rport, $rscheme) = ($url, @$proxy);
326		407
		408	$rscheme = "http" unless defined $rscheme;
		409
327	# don't support https requests over https-proxy transport,	410	# don't support https requests over https-proxy transport,
328	# can't be done with tls as spec'ed, unless you double-encrypt.	411	# can't be done with tls as spec'ed, unless you double-encrypt.
329	$rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";	412	$rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";
330	} else {	413	} else {
331	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	414	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
332	}	415	}
333		416
334	$hdr{host} = $uhost;	417	# leave out fragment and query string, just a heuristic
		418	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};
		419	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};
		420
335	$hdr{"content-length"} = length $arg{body};	421	$hdr{"content-length"} = length $arg{body};
336		422
337	my %state = (connect_guard => 1);	423	my %state = (connect_guard => 1);
338		424
339	_get_slot $uhost, sub {	425	_get_slot $uhost, sub {
…		…
341		427
342	return unless $state{connect_guard};	428	return unless $state{connect_guard};
343		429
344	$state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {	430	$state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {
345	$state{fh} = shift	431	$state{fh} = shift
		432	or do {
		433	my $err = "$!";
		434	%state = ();
346	or return $cb->(undef, { Status => 599, Reason => "$!", URL => $url });	435	return $cb->(undef, { Status => 599, Reason => $err, URL => $url });
		436	};
		437
347	pop; # free memory, save a tree	438	pop; # free memory, save a tree
348		439
349	return unless delete $state{connect_guard};	440	return unless delete $state{connect_guard};
350		441
351	# get handle	442	# get handle
352	$state{handle} = new AnyEvent::Handle	443	$state{handle} = new AnyEvent::Handle
353	fh => $state{fh},	444	fh => $state{fh},
354	timeout => $timeout;	445	timeout => $timeout,
		446	peername => $rhost,
		447	tls_ctx => $arg{tls_ctx};
355		448
356	# limit the number of persistent connections	449	# limit the number of persistent connections
357	# keepalive not yet supported	450	# keepalive not yet supported
358	if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	451	if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
359	++$KA_COUNT{$_[1]};	452	++$KA_COUNT{$_[1]};
…		…
365	delete $hdr{connection};	458	delete $hdr{connection};
366	}	459	}
367		460
368	# (re-)configure handle	461	# (re-)configure handle
369	$state{handle}->on_error (sub {	462	$state{handle}->on_error (sub {
370	my $errno = "$!";
371	%state = ();	463	%state = ();
372	$cb->(undef, { Status => 599, Reason => $errno, URL => $url });	464	$cb->(undef, { Status => 599, Reason => $_[2], URL => $url });
373	});	465	});
374	$state{handle}->on_eof (sub {	466	$state{handle}->on_eof (sub {
375	%state = ();	467	%state = ();
376	$cb->(undef, { Status => 599, Reason => "unexpected end-of-file", URL => $url });	468	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", URL => $url });
377	});	469	});
378		470
379	$state{handle}->starttls ("connect") if $rscheme eq "https";	471	$state{handle}->starttls ("connect") if $rscheme eq "https";
380		472
381	# handle actual, non-tunneled, request	473	# handle actual, non-tunneled, request
…		…
383	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	475	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
384		476
385	# send request	477	# send request
386	$state{handle}->push_write (	478	$state{handle}->push_write (
387	"$method $rpath HTTP/1.0\015\012"	479	"$method $rpath HTTP/1.0\015\012"
388	. (join "", map "\u$_: $hdr{$_}\015\012", keys %hdr)	480	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
389	. "\015\012"	481	. "\015\012"
390	. (delete $arg{body})	482	. (delete $arg{body})
391	);	483	);
392		484
393	%hdr = (); # reduce memory usage, save a kitten	485	%hdr = (); # reduce memory usage, save a kitten
394		486
395	# status line	487	# status line
396	$state{handle}->push_read (line => $qr_nl, sub {	488	$state{handle}->push_read (line => $qr_nl, sub {
397	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	489	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
398	or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])", URL => $url }));	490	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", URL => $url }));
399		491
400	my %hdr = ( # response headers	492	my %hdr = ( # response headers
401	HTTPVersion => ",$1",	493	HTTPVersion => ",$1",
402	Status => ",$2",	494	Status => ",$2",
403	Reason => ",$3",	495	Reason => ",$3",
404	URL => ",$url"	496	URL => ",$url"
405	);	497	);
406		498
407	# headers, could be optimized a bit	499	# headers, could be optimized a bit
408	$state{handle}->unshift_read (line => $qr_nlnl, sub {	500	$state{handle}->unshift_read (line => $qr_nlnl, sub {
409	for ("$_[1]\012") {	501	for ("$_[1]") {
410	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	502	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
411		503
412	# we support spaces in field names, as lotus domino	504	# things seen, not parsed:
413	# creates them (actually spaces around seperators	505	# p3pP="NON CUR OTPi OUR NOR UNI"
414	# are strictly allowed in http, they are a security issue).	506
415	$hdr{lc $1} .= ",$2"	507	$hdr{lc $1} .= ",$2"
416	while /\G	508	while /\G
417	([^:\000-\037]+):	509	([^:\000-\037]*):
418	[\011\040]*	510	[\011\040]*
419	((?: [^\012]+ \| \012[\011\040] )*)	511	((?: [^\012]+ \| \012[\011\040] )*)
420	\012	512	\012
421	/gxc;	513	/gxc;
422		514
423	/\G$/	515	/\G$/
424	or return (%state = (), $cb->(undef, { Status => 599, Reason => "garbled response headers", URL => $url }));	516	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", URL => $url }));
425	}	517	}
426		518
427	substr $_, 0, 1, ""	519	substr $_, 0, 1, ""
428	for values %hdr;	520	for values %hdr;
429		521
		522	# redirect handling
		523	# microsoft and other shitheads don't give a shit for following standards,
		524	# try to support some common forms of broken Location headers.
		525	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		526	$hdr{location} =~ s/^\.\/+//;
		527
		528	my $url = "$rscheme://$uhost:$uport";
		529
		530	unless ($hdr{location} =~ s/^\///) {
		531	$url .= $upath;
		532	$url =~ s/\/[^\/]*$//;
		533	}
		534
		535	$hdr{location} = "$url/$hdr{location}";
		536	}
		537
		538	my $redirect;
		539
		540	if ($recurse) {
		541	if ($hdr{Status} =~ /^30[12]$/ && $method ne "POST") {
		542	# apparently, mozilla et al. just change POST to GET here
		543	# more research is needed before we do the same
		544	$redirect = 1;
		545	} elsif ($hdr{Status} == 303) {
		546	# even http/1.1 is unclear on how to mutate the method
		547	$method = "GET" unless $method eq "HEAD";
		548	$redirect = 1;
		549	} elsif ($hdr{Status} == 307 && $method =~ /^(?:GET\|HEAD)$/) {
		550	$redirect = 1;
		551	}
		552	}
		553
430	my $finish = sub {	554	my $finish = sub {
431	$state{handle}->destroy;	555	$state{handle}->destroy if $state{handle};
432	%state = ();	556	%state = ();
433		557
434	# set-cookie processing	558	# set-cookie processing
435	if ($arg{cookie_jar}) {	559	if ($arg{cookie_jar}) {
436	for ($hdr{"set-cookie"}) {	560	for ($_[1]{"set-cookie"}) {
437	# parse NAME=VALUE	561	# parse NAME=VALUE
438	my @kv;	562	my @kv;
439		563
440	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {	564	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
441	my $name = $1;	565	my $name = $1;
…		…
479		603
480	redo if /\G\s*,/gc;	604	redo if /\G\s*,/gc;
481	}	605	}
482	}	606	}
483		607
484	# microsoft and other shitheads don't give a shit for following standards,	608	if ($redirect && exists $hdr{location}) {
485	# try to support some common forms of broken Location headers.	609	# we ignore any errors, as it is very common to receive
486	if ($_[1]{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {	610	# Content-Length != 0 but no actual body
487	$_[1]{location} =~ s/^\.\/+//;	611	# we also access %hdr, as $_[1] might be an erro
488
489	my $url = "$rscheme://$uhost:$uport";
490
491	unless ($_[1]{location} =~ s/^\///) {
492	$url .= $upath;
493	$url =~ s/\/[^\/]*$//;
494	}
495
496	$_[1]{location} = "$url/$_[1]{location}";
497	}
498
499	if ($_[1]{Status} =~ /^30[12]$/ && $recurse && $method ne "POST") {
500	# apparently, mozilla et al. just change POST to GET here
501	# more research is needed before we do the same
502	http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
503	} elsif ($_[1]{Status} == 303 && $recurse) {
504	# even http/1.1 is unclear on how to mutate the method
505	$method = "GET" unless $method eq "HEAD";
506	http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);	612	http_request ($method => $hdr{location}, %arg, recurse => $recurse - 1, $cb);
507	} elsif ($_[1]{Status} == 307 && $recurse && $method =~ /^(?:GET\|HEAD)$/) {
508	http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
509	} else {	613	} else {
510	$cb->($_[0], $_[1]);	614	$cb->($_[0], $_[1]);
511	}	615	}
512	};	616	};
513		617
514	if ($hdr{Status} =~ /^(?:1..\|204\|304)$/ or $method eq "HEAD") {	618	my $len = $hdr{"content-length"};
		619
		620	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		621	$finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", URL => $url });
		622	} elsif (
		623	$hdr{Status} =~ /^(?:1..\|[23]04)$/
		624	or $method eq "HEAD"
		625	or (defined $len && !$len)
		626	) {
		627	# no body
515	$finish->(undef, \%hdr);	628	$finish->("", \%hdr);
516	} else {	629	} else {
517	if (exists $hdr{"content-length"}) {	630	# body handling, four different code paths
518	$_[0]->unshift_read (chunk => $hdr{"content-length"}, sub {	631	# for want_body_handle, on_body (2x), normal (2x)
519	# could cache persistent connection now	632	# we might read too much here, but it does not matter yet (no pers. connections)
520	if ($hdr{connection} =~ /\bkeep-alive\b/i) {	633	if (!$redirect && $arg{want_body_handle}) {
521	# but we don't, due to misdesigns, this is annoyingly complex	634	$_[0]->on_eof (undef);
		635	$_[0]->on_error (undef);
		636	$_[0]->on_read (undef);
		637
		638	$finish->(delete $state{handle}, \%hdr);
		639
		640	} elsif ($arg{on_body}) {
		641	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
		642	if ($len) {
		643	$_[0]->on_eof (undef);
		644	$_[0]->on_read (sub {
		645	$len -= length $_[0]{rbuf};
		646
		647	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		648	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
		649
		650	$len > 0
		651	or $finish->("", \%hdr);
522	};	652	});
523		653	} else {
		654	$_[0]->on_eof (sub {
524	$finish->($_[1], \%hdr);	655	$finish->("", \%hdr);
		656	});
		657	$_[0]->on_read (sub {
		658	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		659	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
		660	});
525	});	661	}
526	} else {	662	} else {
527	# too bad, need to read until we get an error or EOF,
528	# no way to detect winged data.
529	$_[0]->on_error (sub {
530	# delete ought to be more efficient, as we would have to make
531	# a copy otherwise as $_[0] gets destroyed.
532	$finish->(delete $_[0]{rbuf}, \%hdr);
533	});
534	$_[0]->on_eof (undef);	663	$_[0]->on_eof (undef);
		664
		665	if ($len) {
		666	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
		667	$_[0]->on_read (sub {
		668	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
		669	if $len <= length $_[0]{rbuf};
		670	});
		671	} else {
		672	$_[0]->on_error (sub {
		673	$! == Errno::EPIPE \|\| !$!
		674	? $finish->(delete $_[0]{rbuf}, \%hdr)
		675	: $finish->(undef, { Status => 599, Reason => $_[2], URL => $url });
		676	});
535	$_[0]->on_read (sub { });	677	$_[0]->on_read (sub { });
		678	}
536	}	679	}
537	}	680	}
538	});	681	});
539	});	682	});
540	};	683	};
…		…
545		688
546	# maybe re-use $uauthority with patched port?	689	# maybe re-use $uauthority with patched port?
547	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");	690	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
548	$state{handle}->push_read (line => $qr_nlnl, sub {	691	$state{handle}->push_read (line => $qr_nlnl, sub {
549	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	692	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
550	or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid proxy connect response ($_[1])", URL => $url }));	693	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", URL => $url }));
551		694
552	if ($2 == 200) {	695	if ($2 == 200) {
553	$rpath = $upath;	696	$rpath = $upath;
554	&$handle_actual_request;	697	&$handle_actual_request;
555	} else {	698	} else {
…		…
601	The default value for the C<recurse> request parameter (default: C<10>).	744	The default value for the C<recurse> request parameter (default: C<10>).
602		745
603	=item $AnyEvent::HTTP::USERAGENT	746	=item $AnyEvent::HTTP::USERAGENT
604		747
605	The default value for the C<User-Agent> header (the default is	748	The default value for the C<User-Agent> header (the default is
606	C<Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>).	749	C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>).
607		750
608	=item $AnyEvent::HTTP::MAX_PERSISTENT	751	=item $AnyEvent::HTTP::MAX_PER_HOST
609		752
610	The maximum number of persistent connections to keep open (default: 8).	753	The maximum number of concurrent connections to the same host (identified
		754	by the hostname). If the limit is exceeded, then the additional requests
		755	are queued until previous connections are closed.
611		756
612	Not implemented currently.	757	The default value for this is C<4>, and it is highly advisable to not
613		758	increase it.
614	=item $AnyEvent::HTTP::PERSISTENT_TIMEOUT
615
616	The maximum time to cache a persistent connection, in seconds (default: 2).
617
618	Not implemented currently.
619		759
620	=item $AnyEvent::HTTP::ACTIVE	760	=item $AnyEvent::HTTP::ACTIVE
621		761
622	The number of active connections. This is not the number of currently	762	The number of active connections. This is not the number of currently
623	running requests, but the number of currently open and non-idle TCP	763	running requests, but the number of currently open and non-idle TCP

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.39 by root, Thu Jun 11 12:46:01 2009 UTC vs. Revision 1.48 by root, Wed Aug 5 16:09:10 2009 UTC

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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.39 by root, Thu Jun 11 12:46:01 2009 UTC vs.
Revision 1.48 by root, Wed Aug 5 16:09:10 2009 UTC