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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.60 by root, Thu Dec 30 02:56:28 2010 UTC vs.
Revision 1.70 by root, Fri Dec 31 20:31:47 2010 UTC

…		…
47	use AnyEvent::Util ();	47	use AnyEvent::Util ();
48	use AnyEvent::Handle ();	48	use AnyEvent::Handle ();
49		49
50	use base Exporter::;	50	use base Exporter::;
51		51
52	our $VERSION = '1.46';	52	our $VERSION = '1.5';
53		53
54	our @EXPORT = qw(http_get http_post http_head http_request);	54	our @EXPORT = qw(http_get http_post http_head http_request);
55		55
56	our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";	56	our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";
57	our $MAX_RECURSE = 10;	57	our $MAX_RECURSE = 10;
…		…
94	C<http_request> returns a "cancellation guard" - you have to keep the	94	C<http_request> returns a "cancellation guard" - you have to keep the
95	object at least alive until the callback get called. If the object gets	95	object at least alive until the callback get called. If the object gets
96	destroyed before the callback is called, the request will be cancelled.	96	destroyed before the callback is called, the request will be cancelled.
97		97
98	The callback will be called with the response body data as first argument	98	The callback will be called with the response body data as first argument
99	(or C<undef> if an error occured), and a hash-ref with response headers as	99	(or C<undef> if an error occured), and a hash-ref with response headers
100	second argument.	100	(and trailers) as second argument.
101		101
102	All the headers in that hash are lowercased. In addition to the response	102	All the headers in that hash are lowercased. In addition to the response
103	headers, the "pseudo-headers" (uppercase to avoid clashing with possible	103	headers, the "pseudo-headers" (uppercase to avoid clashing with possible
104	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the	104	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the
105	three parts of the HTTP Status-Line of the same name.	105	three parts of the HTTP Status-Line of the same name. If an error occurs
		106	during the body phase of a request, then the original C<Status> and
		107	C<Reason> values from the header are available as C<OrigStatus> and
		108	C<OrigReason>.
106		109
107	The pseudo-header C<URL> contains the actual URL (which can differ from	110	The pseudo-header C<URL> contains the actual URL (which can differ from
108	the requested URL when following redirects - for example, you might get	111	the requested URL when following redirects - for example, you might get
109	an error that your URL scheme is not supported even though your URL is a	112	an error that your URL scheme is not supported even though your URL is a
110	valid http URL because it redirected to an ftp URL, in which case you can	113	valid http URL because it redirected to an ftp URL, in which case you can
…		…
147	Whether to recurse requests or not, e.g. on redirects, authentication	150	Whether to recurse requests or not, e.g. on redirects, authentication
148	retries and so on, and how often to do so.	151	retries and so on, and how often to do so.
149		152
150	=item headers => hashref	153	=item headers => hashref
151		154
152	The request headers to use. Currently, C<http_request> may provide its	155	The request headers to use. Currently, C<http_request> may provide its own
153	own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers	156	C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers and
154	and will provide defaults for C<User-Agent:> and C<Referer:> (this can be	157	will provide defaults at least for C<TE:>, C<Referer:> and C<User-Agent:>
155	suppressed by using C<undef> for these headers in which case they won't be	158	(this can be suppressed by using C<undef> for these headers in which case
156	sent at all).	159	they won't be sent at all).
157		160
158	=item timeout => $seconds	161	=item timeout => $seconds
159		162
160	The time-out to use for various stages - each connect attempt will reset	163	The time-out to use for various stages - each connect attempt will reset
161	the timeout, as will read or write activity, i.e. this is not an overall	164	the timeout, as will read or write activity, i.e. this is not an overall
…		…
171	C<$scheme> must be either missing, C<http> for HTTP or C<https> for	174	C<$scheme> must be either missing, C<http> for HTTP or C<https> for
172	HTTPS.	175	HTTPS.
173		176
174	=item body => $string	177	=item body => $string
175		178
176	The request body, usually empty. Will be-sent as-is (future versions of	179	The request body, usually empty. Will be sent as-is (future versions of
177	this module might offer more options).	180	this module might offer more options).
178		181
179	=item cookie_jar => $hash_ref	182	=item cookie_jar => $hash_ref
180		183
181	Passing this parameter enables (simplified) cookie-processing, loosely	184	Passing this parameter enables (simplified) cookie-processing, loosely
182	based on the original netscape specification.	185	based on the original netscape specification.
183		186
184	The C<$hash_ref> must be an (initially empty) hash reference which will	187	The C<$hash_ref> must be an (initially empty) hash reference which will
185	get updated automatically. It is possible to save the cookie_jar to	188	get updated automatically. It is possible to save the cookie jar to
186	persistent storage with something like JSON or Storable, but this is not	189	persistent storage with something like JSON or Storable, but this is not
187	recommended, as expiry times are currently being ignored.	190	recommended, as session-only cookies might survive longer than expected.
188		191
189	Note that this cookie implementation is not of very high quality, nor	192	Note that this cookie implementation is not meant to be complete. If
190	meant to be complete. If you want complete cookie management you have to	193	you want complete cookie management you have to do that on your
191	do that on your own. C<cookie_jar> is meant as a quick fix to get some	194	own. C<cookie_jar> is meant as a quick fix to get some cookie-using sites
192	cookie-using sites working. Cookies are a privacy disaster, do not use	195	working. Cookies are a privacy disaster, do not use them unless required
193	them unless required to.	196	to.
		197
		198	When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:>
		199	headers will be set and handled by this module, otherwise they will be
		200	left untouched.
194		201
195	=item tls_ctx => $scheme \| $tls_ctx	202	=item tls_ctx => $scheme \| $tls_ctx
196		203
197	Specifies the AnyEvent::TLS context to be used for https connections. This	204	Specifies the AnyEvent::TLS context to be used for https connections. This
198	parameter follows the same rules as the C<tls_ctx> parameter to	205	parameter follows the same rules as the C<tls_ctx> parameter to
…		…
237		244
238	This callback is useful, among other things, to quickly reject unwanted	245	This callback is useful, among other things, to quickly reject unwanted
239	content, which, if it is supposed to be rare, can be faster than first	246	content, which, if it is supposed to be rare, can be faster than first
240	doing a C<HEAD> request.	247	doing a C<HEAD> request.
241		248
		249	The downside is that cancelling the request makes it impossible to re-use
		250	the connection. Also, the C<on_header> callback will not receive any
		251	trailer (headers sent after the response body).
		252
242	Example: cancel the request unless the content-type is "text/html".	253	Example: cancel the request unless the content-type is "text/html".
243		254
244	on_header => sub {	255	on_header => sub {
245	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	256	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
246	},	257	},
…		…
252	string instead of the body data.	263	string instead of the body data.
253		264
254	It has to return either true (in which case AnyEvent::HTTP will continue),	265	It has to return either true (in which case AnyEvent::HTTP will continue),
255	or false, in which case AnyEvent::HTTP will cancel the download (and call	266	or false, in which case AnyEvent::HTTP will cancel the download (and call
256	the completion callback with an error code of C<598>).	267	the completion callback with an error code of C<598>).
		268
		269	The downside to cancelling the request is that it makes it impossible to
		270	re-use the connection.
257		271
258	This callback is useful when the data is too large to be held in memory	272	This callback is useful when the data is too large to be held in memory
259	(so the callback writes it to a file) or when only some information should	273	(so the callback writes it to a file) or when only some information should
260	be extracted, or when the body should be processed incrementally.	274	be extracted, or when the body should be processed incrementally.
261		275
…		…
287	If you think you need this, first have a look at C<on_body>, to see if	301	If you think you need this, first have a look at C<on_body>, to see if
288	that doesn't solve your problem in a better way.	302	that doesn't solve your problem in a better way.
289		303
290	=back	304	=back
291		305
292	Example: make a simple HTTP GET request for http://www.nethype.de/	306	Example: do a simple HTTP GET request for http://www.nethype.de/ and print
		307	the response body.
293		308
294	http_request GET => "http://www.nethype.de/", sub {	309	http_request GET => "http://www.nethype.de/", sub {
295	my ($body, $hdr) = @_;	310	my ($body, $hdr) = @_;
296	print "$body\n";	311	print "$body\n";
297	};	312	};
298		313
299	Example: make a HTTP HEAD request on https://www.google.com/, use a	314	Example: do a HTTP HEAD request on https://www.google.com/, use a
300	timeout of 30 seconds.	315	timeout of 30 seconds.
301		316
302	http_request	317	http_request
303	GET => "https://www.google.com",	318	GET => "https://www.google.com",
304	timeout => 30,	319	timeout => 30,
…		…
307	use Data::Dumper;	322	use Data::Dumper;
308	print Dumper $hdr;	323	print Dumper $hdr;
309	}	324	}
310	;	325	;
311		326
312	Example: make another simple HTTP GET request, but immediately try to	327	Example: do another simple HTTP GET request, but immediately try to
313	cancel it.	328	cancel it.
314		329
315	my $request = http_request GET => "http://www.nethype.de/", sub {	330	my $request = http_request GET => "http://www.nethype.de/", sub {
316	my ($body, $hdr) = @_;	331	my ($body, $hdr) = @_;
317	print "$body\n";	332	print "$body\n";
…		…
349	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	364	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
350		365
351	_slot_schedule $_[0];	366	_slot_schedule $_[0];
352	}	367	}
353		368
		369	# continue to parse $_ for headers and place them into the arg
		370	sub parse_hdr() {
		371	my %hdr;
		372
		373	# things seen, not parsed:
		374	# p3pP="NON CUR OTPi OUR NOR UNI"
		375
		376	$hdr{lc $1} .= ",$2"
		377	while /\G
		378	([^:\000-\037]*):
		379	[\011\040]*
		380	((?: [^\012]+ \| \012[\011\040] )*)
		381	\012
		382	/gxc;
		383
		384	/\G$/
		385	or return;
		386
		387	# remove the "," prefix we added to all headers above
		388	substr $_, 0, 1, ""
		389	for values %hdr;
		390
		391	\%hdr
		392	}
		393
354	our $qr_nlnl = qr{(?<![^\012])\015?\012};	394	our $qr_nlnl = qr{(?<![^\012])\015?\012};
355		395
356	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	396	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
357	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	397	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
358		398
…		…
377	my @pseudo = (URL => $url);	417	my @pseudo = (URL => $url);
378	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};	418	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
379		419
380	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	420	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
381		421
382	return $cb->(undef, { Status => 599, Reason => "Too many redirections", @pseudo })	422	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
383	if $recurse < 0;	423	if $recurse < 0;
384		424
385	my $proxy = $arg{proxy} \|\| $PROXY;	425	my $proxy = $arg{proxy} \|\| $PROXY;
386	my $timeout = $arg{timeout} \|\| $TIMEOUT;	426	my $timeout = $arg{timeout} \|\| $TIMEOUT;
387		427
…		…
390		430
391	$uscheme = lc $uscheme;	431	$uscheme = lc $uscheme;
392		432
393	my $uport = $uscheme eq "http" ? 80	433	my $uport = $uscheme eq "http" ? 80
394	: $uscheme eq "https" ? 443	434	: $uscheme eq "https" ? 443
395	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", @pseudo });	435	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
396		436
397	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	437	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
398	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", @pseudo });	438	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
399		439
400	my $uhost = $1;	440	my $uhost = $1;
401	$uport = $2 if defined $2;	441	$uport = $2 if defined $2;
402		442
403	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"	443	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
…		…
412	if (my $jar = $arg{cookie_jar}) {	452	if (my $jar = $arg{cookie_jar}) {
413	%$jar = () if $jar->{version} != 1;	453	%$jar = () if $jar->{version} != 1;
414		454
415	my @cookie;	455	my @cookie;
416		456
417	while (my ($chost, $v) = each %$jar) {	457	while (my ($chost, $paths) = each %$jar) {
418	if ($chost =~ /^\./) {	458	if ($chost =~ /^\./) {
419	next unless $chost eq substr $uhost, -length $chost;	459	next unless $chost eq substr $uhost, -length $chost;
420	} elsif ($chost =~ /\./) {	460	} elsif ($chost =~ /\./) {
421	next unless $chost eq $uhost;	461	next unless $chost eq $uhost;
422	} else {	462	} else {
423	next;	463	next;
424	}	464	}
425		465
426	while (my ($cpath, $v) = each %$v) {	466	while (my ($cpath, $cookies) = each %$paths) {
427	next unless $cpath eq substr $upath, 0, length $cpath;	467	next unless $cpath eq substr $upath, 0, length $cpath;
428		468
429	while (my ($k, $v) = each %$v) {	469	while (my ($cookie, $kv) = each %$cookies) {
430	next if $uscheme ne "https" && exists $v->{secure};	470	next if $uscheme ne "https" && exists $kv->{secure};
		471
		472	if (exists $kv->{expires}) {
		473	if (AE::now > parse_date ($kv->{expires})) {
		474	delete $cookies->{$cookie};
		475	next;
		476	}
		477	}
		478
431	my $value = $v->{value};	479	my $value = $kv->{value};
432	$value =~ s/([\\"])/\\$1/g;	480	$value =~ s/([\\"])/\\$1/g;
433	push @cookie, "$k=\"$value\"";	481	push @cookie, "$cookie=\"$value\"";
434	}	482	}
435	}	483	}
436	}	484	}
437		485
438	$hdr{cookie} = join "; ", @cookie	486	$hdr{cookie} = join "; ", @cookie
…		…
452	} else {	500	} else {
453	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	501	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
454	}	502	}
455		503
456	# leave out fragment and query string, just a heuristic	504	# leave out fragment and query string, just a heuristic
457	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	505	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
458	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	506	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
459		507
460	$hdr{"content-length"} = length $arg{body}	508	$hdr{"content-length"} = length $arg{body}
461	if length $arg{body} \|\| $method ne "GET";	509	if length $arg{body} \|\| $method ne "GET";
462		510
		511	$hdr{connection} = "close TE"; #1.1
		512	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
		513
463	my %state = (connect_guard => 1);	514	my %state = (connect_guard => 1);
464		515
465	_get_slot $uhost, sub {	516	_get_slot $uhost, sub {
466	$state{slot_guard} = shift;	517	$state{slot_guard} = shift;
467		518
468	return unless $state{connect_guard};	519	return unless $state{connect_guard};
469		520
470	my $tcp_connect = $arg{tcp_connect}	521	my $connect_cb = sub {
471	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
472
473	$state{connect_guard} = $tcp_connect->(
474	$rhost,
475	$rport,
476	sub {
477	$state{fh} = shift	522	$state{fh} = shift
478	or do {	523	or do {
479	my $err = "$!";	524	my $err = "$!";
480	%state = ();	525	%state = ();
481	return $cb->(undef, { Status => 599, Reason => $err, @pseudo });	526	return $cb->(undef, { @pseudo, Status => 599, Reason => $err });
482	};	527	};
483		528
484	pop; # free memory, save a tree	529	pop; # free memory, save a tree
485		530
486	return unless delete $state{connect_guard};	531	return unless delete $state{connect_guard};
487		532
488	# get handle	533	# get handle
489	$state{handle} = new AnyEvent::Handle	534	$state{handle} = new AnyEvent::Handle
490	fh => $state{fh},	535	fh => $state{fh},
491	peername => $rhost,	536	peername => $rhost,
492	tls_ctx => $arg{tls_ctx},	537	tls_ctx => $arg{tls_ctx},
493	# these need to be reconfigured on keepalive handles	538	# these need to be reconfigured on keepalive handles
494	timeout => $timeout,	539	timeout => $timeout,
495	on_error => sub {	540	on_error => sub {
496	%state = ();	541	%state = ();
497	$cb->(undef, { Status => 599, Reason => $_[2], @pseudo });	542	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });
498	},	543	},
499	on_eof => sub {	544	on_eof => sub {
500	%state = ();	545	%state = ();
501	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", @pseudo });	546	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });
502	},	547	},
503	;	548	;
504		549
505	# limit the number of persistent connections	550	# limit the number of persistent connections
506	# keepalive not yet supported	551	# keepalive not yet supported
507	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	552	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
508	# ++$KA_COUNT{$_[1]};	553	# ++$KA_COUNT{$_[1]};
509	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {	554	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
510	# --$KA_COUNT{$_[1]}	555	# --$KA_COUNT{$_[1]}
511	# };	556	# };
512	# $hdr{connection} = "keep-alive";	557	# $hdr{connection} = "keep-alive";
513	# } else {
514	delete $hdr{connection};
515	# }	558	# }
516		559
517	$state{handle}->starttls ("connect") if $rscheme eq "https";	560	$state{handle}->starttls ("connect") if $rscheme eq "https";
518		561
519	# handle actual, non-tunneled, request	562	# handle actual, non-tunneled, request
520	my $handle_actual_request = sub {	563	my $handle_actual_request = sub {
521	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	564	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
522		565
523	# send request	566	# send request
524	$state{handle}->push_write (	567	$state{handle}->push_write (
525	"$method $rpath HTTP/1.0\015\012"	568	"$method $rpath HTTP/1.1\015\012"
526	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	569	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
527	. "\015\012"	570	. "\015\012"
528	. (delete $arg{body})	571	. (delete $arg{body})
529	);	572	);
530		573
531	# return if error occured during push_write()	574	# return if error occured during push_write()
532	return unless %state;	575	return unless %state;
533		576
534	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use	577	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
535		578
536	# status line and headers	579	# status line and headers
537	$state{handle}->push_read (line => $qr_nlnl, sub {	580	$state{read_response} = sub {
538	for ("$_[1]") {	581	for ("$_[1]") {
539	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	582	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
540		583
541	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )? \015?\012/igxc	584	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc
542	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response", @pseudo }));	585	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
543		586
		587	# 100 Continue handling
		588	# should not happen as we don't send expect: 100-continue,
		589	# but we handle it just in case.
		590	# since we send the request body regardless, if we get an error
		591	# we are out of-sync, which we currently do NOT handle correctly.
		592	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
		593	if $2 eq 100;
		594
544	push @pseudo,	595	push @pseudo,
545	HTTPVersion => $1,	596	HTTPVersion => $1,
546	Status => $2,	597	Status => $2,
547	Reason => $3,	598	Reason => $3,
548	;	599	;
549		600
550	# things seen, not parsed:	601	my $hdr = parse_hdr
551	# p3pP="NON CUR OTPi OUR NOR UNI"
552
553	$hdr{lc $1} .= ",$2"
554	while /\G
555	([^:\000-\037]*):
556	[\011\040]*
557	((?: [^\012]+ \| \012[\011\040] )*)
558	\012
559	/gxc;
560
561	/\G$/
562	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", @pseudo }));	602	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		603
		604	%hdr = (%$hdr, @pseudo);
		605	}
		606
		607	# redirect handling
		608	# microsoft and other shitheads don't give a shit for following standards,
		609	# try to support some common forms of broken Location headers.
		610	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		611	$hdr{location} =~ s/^\.\/+//;
		612
		613	my $url = "$rscheme://$uhost:$uport";
		614
		615	unless ($hdr{location} =~ s/^\///) {
		616	$url .= $upath;
		617	$url =~ s/\/[^\/]*$//;
563	}	618	}
564		619
565	# remove the "," prefix we added to all headers above
566	substr $_, 0, 1, ""
567	for values %hdr;
568
569	# patch in all pseudo headers
570	%hdr = (%hdr, @pseudo);
571
572	# redirect handling
573	# microsoft and other shitheads don't give a shit for following standards,
574	# try to support some common forms of broken Location headers.
575	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
576	$hdr{location} =~ s/^\.\/+//;
577
578	my $url = "$rscheme://$uhost:$uport";
579
580	unless ($hdr{location} =~ s/^\///) {
581	$url .= $upath;
582	$url =~ s/\/[^\/]*$//;
583	}
584
585	$hdr{location} = "$url/$hdr{location}";	620	$hdr{location} = "$url/$hdr{location}";
		621	}
		622
		623	my $redirect;
		624
		625	if ($recurse) {
		626	my $status = $hdr{Status};
		627
		628	# industry standard is to redirect POST as GET for
		629	# 301, 302 and 303, in contrast to http/1.0 and 1.1.
		630	# also, the UA should ask the user for 301 and 307 and POST,
		631	# industry standard seems to be to simply follow.
		632	# we go with the industry standard.
		633	if ($status == 301 or $status == 302 or $status == 303) {
		634	# HTTP/1.1 is unclear on how to mutate the method
		635	$method = "GET" unless $method eq "HEAD";
		636	$redirect = 1;
		637	} elsif ($status == 307) {
		638	$redirect = 1;
586	}	639	}
		640	}
587		641
		642	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
588	my $redirect;	643	my $keepalive = pop;
589		644
		645	$state{handle}->destroy if $state{handle};
		646	%state = ();
		647
		648	if (defined $_[1]) {
		649	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		650	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		651	}
		652
		653	# set-cookie processing
590	if ($recurse) {	654	if ($arg{cookie_jar}) {
591	my $status = $hdr{Status};	655	for ($hdr{"set-cookie"}) {
		656	# parse NAME=VALUE
		657	my @kv;
592		658
593	# industry standard is to redirect POST as GET for	659	while (
594	# 301, 302 and 303, in contrast to http/1.0 and 1.1.	660	m{
595	# also, the UA should ask the user for 301 and 307 and POST,	661	\G\s*
596	# industry standard seems to be to simply follow.	662	(?:
597	# we go with the industry standard.	663	expires \s=\s ([A-Z][a-z][a-z],\ [^,;]+)
598	if ($status == 301 or $status == 302 or $status == 303) {	664	\| ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )
599	# HTTP/1.1 is unclear on how to mutate the method	665	)
600	$method = "GET" unless $method eq "HEAD";	666	}gcxsi
		667	) {
		668	my $name = $2;
		669	my $value = $4;
		670
		671	unless (defined $name) {
		672	# expires
		673	$name = "expires";
		674	$value = $1;
		675	} elsif (!defined $value) {
		676	# quoted
		677	$value = $3;
		678	$value =~ s/\\(.)/$1/gs;
		679	}
		680
		681	push @kv, lc $name, $value;
		682
		683	last unless /\G\s*;/gc;
		684	}
		685
		686	last unless @kv;
		687
		688	my $name = shift @kv;
		689	my %kv = (value => shift @kv, @kv);
		690
		691	$kv{expires} \|\|= format_date (AE::now + $kv{"max-age"})
		692	if exists $kv{"max-age"};
		693
		694	my $cdom;
		695	my $cpath = (delete $kv{path}) \|\| "/";
		696
		697	if (exists $kv{domain}) {
		698	$cdom = delete $kv{domain};
		699
		700	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		701
		702	next if $cdom =~ /\.$/;
		703
		704	# this is not rfc-like and not netscape-like. go figure.
		705	my $ndots = $cdom =~ y/.//;
		706	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		707	} else {
		708	$cdom = $uhost;
		709	}
		710
601	$redirect = 1;	711	# store it
602	} elsif ($status == 307) {	712	$arg{cookie_jar}{version} = 1;
603	$redirect = 1;	713	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
		714
		715	redo if /\G\s*,/gc;
604	}	716	}
605	}	717	}
606		718
607	my $finish = sub {
608	$state{handle}->destroy if $state{handle};
609	%state = ();
610
611	# set-cookie processing
612	if ($arg{cookie_jar}) {
613	for ($_[1]{"set-cookie"}) {
614	# parse NAME=VALUE
615	my @kv;
616
617	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
618	my $name = $1;
619	my $value = $3;
620
621	unless ($value) {
622	$value = $2;
623	$value =~ s/\\(.)/$1/gs;
624	}
625
626	push @kv, $name => $value;
627
628	last unless /\G\s*;/gc;
629	}
630
631	last unless @kv;
632
633	my $name = shift @kv;
634	my %kv = (value => shift @kv, @kv);
635
636	my $cdom;
637	my $cpath = (delete $kv{path}) \|\| "/";
638
639	if (exists $kv{domain}) {
640	$cdom = delete $kv{domain};
641
642	$cdom =~ s/^\.?/./; # make sure it starts with a "."
643
644	next if $cdom =~ /\.$/;
645
646	# this is not rfc-like and not netscape-like. go figure.
647	my $ndots = $cdom =~ y/.//;
648	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
649	} else {
650	$cdom = $uhost;
651	}
652
653	# store it
654	$arg{cookie_jar}{version} = 1;
655	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
656
657	redo if /\G\s*,/gc;
658	}
659	}
660
661	if ($redirect && exists $hdr{location}) {	719	if ($redirect && exists $hdr{location}) {
662	# we ignore any errors, as it is very common to receive	720	# we ignore any errors, as it is very common to receive
663	# Content-Length != 0 but no actual body	721	# Content-Length != 0 but no actual body
664	# we also access %hdr, as $_[1] might be an erro	722	# we also access %hdr, as $_[1] might be an erro
665	http_request (	723	http_request (
666	$method => $hdr{location},	724	$method => $hdr{location},
667	%arg,	725	%arg,
668	recurse => $recurse - 1,	726	recurse => $recurse - 1,
669	Redirect => \@_,	727	Redirect => [$_[0], \%hdr],
670	$cb);	728	$cb);
671	} else {
672	$cb->($_[0], $_[1]);
673	}
674	};
675
676	my $len = $hdr{"content-length"};
677
678	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
679	$finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", @pseudo });
680	} elsif (
681	$hdr{Status} =~ /^(?:1..\|[23]04)$/
682	or $method eq "HEAD"
683	or (defined $len && !$len)
684	) {
685	# no body
686	$finish->("", \%hdr);
687	} else {	729	} else {
		730	$cb->($_[0], \%hdr);
		731	}
		732	};
		733
		734	my $len = $hdr{"content-length"};
		735
		736	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		737	$finish->(undef, 598 => "Request cancelled by on_header");
		738	} elsif (
		739	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		740	or $method eq "HEAD"
		741	or (defined $len && !$len)
		742	) {
		743	# no body
		744	$finish->("", undef, undef, 1);
		745	} else {
688	# body handling, four different code paths	746	# body handling, many different code paths
689	# for want_body_handle, on_body (2x), normal (2x)	747	# - no body expected
690	# we might read too much here, but it does not matter yet (no pers. connections)	748	# - want_body_handle
		749	# - te chunked
		750	# - 2x length known (with or without on_body)
		751	# - 2x length not known (with or without on_body)
691	if (!$redirect && $arg{want_body_handle}) {	752	if (!$redirect && $arg{want_body_handle}) {
692	$_[0]->on_eof (undef);	753	$_[0]->on_eof (undef);
693	$_[0]->on_error (undef);	754	$_[0]->on_error (undef);
694	$_[0]->on_read (undef);	755	$_[0]->on_read (undef);
695		756
696	$finish->(delete $state{handle}, \%hdr);	757	$finish->(delete $state{handle});
697		758
698	} elsif ($arg{on_body}) {	759	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		760	my $cl = 0;
		761	my $body = undef;
		762	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		763
699	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });	764	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		765
		766	my $read_chunk; $read_chunk = sub {
		767	$_[1] =~ /^([0-9a-fA-F]+)/
		768	or $finish->(undef, 599 => "Garbled chunked transfer encoding");
		769
		770	my $len = hex $1;
		771
700	if ($len) {	772	if ($len) {
701	$_[0]->on_eof (undef);	773	$cl += $len;
		774
		775	$_[0]->push_read (chunk => $len, sub {
		776	$on_body->($_[1], \%hdr)
		777	or return $finish->(undef, 598 => "Request cancelled by on_body");
		778
702	$_[0]->on_read (sub {	779	$_[0]->push_read (line => sub {
703	$len -= length $_[0]{rbuf};	780	length $_[1]
704		781	and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
705	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	782	$_[0]->push_read (line => $read_chunk);
706	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
707
708	$len > 0	783	});
709	or $finish->("", \%hdr);
710	});	784	});
711	} else {	785	} else {
712	$_[0]->on_eof (sub {	786	$hdr{"content-length"} \|\|= $cl;
713	$finish->("", \%hdr);	787
		788	$_[0]->push_read (line => $qr_nlnl, sub {
		789	if (length $_[1]) {
		790	for ("$_[1]") {
		791	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		792
		793	my $hdr = parse_hdr
		794	or return $finish->(undef, 599 => "Garbled response trailers");
		795
		796	%hdr = (%hdr, %$hdr);
		797	}
714	});	798	}
715	$_[0]->on_read (sub {	799
716	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	800	$finish->($body, undef, undef, 1);
717	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
718	});	801	});
719	}	802	}
		803	};
		804
		805	$_[0]->push_read (line => $read_chunk);
		806
		807	} elsif ($arg{on_body}) {
		808	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		809
		810	if ($len) {
		811	$_[0]->on_read (sub {
		812	$len -= length $_[0]{rbuf};
		813
		814	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		815	or return $finish->(undef, 598 => "Request cancelled by on_body");
		816
		817	$len > 0
		818	or $finish->("", undef, undef, 1);
		819	});
720	} else {	820	} else {
721	$_[0]->on_eof (undef);	821	$_[0]->on_eof (sub {
722		822	$finish->("");
723	if ($len) {	823	});
724	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
725	$_[0]->on_read (sub {	824	$_[0]->on_read (sub {
		825	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		826	or $finish->(undef, 598 => "Request cancelled by on_body");
		827	});
		828	}
		829	} else {
		830	$_[0]->on_eof (undef);
		831
		832	if ($len) {
		833	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		834	$_[0]->on_read (sub {
726	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)	835	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
727	if $len <= length $_[0]{rbuf};	836	if $len <= length $_[0]{rbuf};
728	});	837	});
729	} else {	838	} else {
730	$_[0]->on_error (sub {	839	$_[0]->on_error (sub {
731	($! == Errno::EPIPE \|\| !$!)	840	($! == Errno::EPIPE \|\| !$!)
732	? $finish->(delete $_[0]{rbuf}, \%hdr)	841	? $finish->(delete $_[0]{rbuf})
733	: $finish->(undef, { Status => 599, Reason => $_[2], @pseudo });	842	: $finish->(undef, 599 => $_[2]);
734	});	843	});
735	$_[0]->on_read (sub { });	844	$_[0]->on_read (sub { });
736	}
737	}	845	}
738	}	846	}
739	});	847	}
740	};	848	};
741		849
		850	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
		851	};
		852
742	# now handle proxy-CONNECT method	853	# now handle proxy-CONNECT method
743	if ($proxy && $uscheme eq "https") {	854	if ($proxy && $uscheme eq "https") {
744	# oh dear, we have to wrap it into a connect request	855	# oh dear, we have to wrap it into a connect request
745		856
746	# maybe re-use $uauthority with patched port?	857	# maybe re-use $uauthority with patched port?
747	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");	858	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
748	$state{handle}->push_read (line => $qr_nlnl, sub {	859	$state{handle}->push_read (line => $qr_nlnl, sub {
749	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	860	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
750	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", @pseudo }));	861	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
751		862
752	if ($2 == 200) {	863	if ($2 == 200) {
753	$rpath = $upath;	864	$rpath = $upath;
754	&$handle_actual_request;	865	&$handle_actual_request;
755	} else {	866	} else {
756	%state = ();	867	%state = ();
757	$cb->(undef, { Status => $2, Reason => $3, @pseudo });	868	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
758	}
759	});	869	}
		870	});
760	} else {	871	} else {
761	&$handle_actual_request;	872	&$handle_actual_request;
762	}
763
764	},	873	}
765	$arg{on_prepare} \|\| sub { $timeout }
766	);	874	};
		875
		876	my $tcp_connect = $arg{tcp_connect}
		877	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		878
		879	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		880
767	};	881	};
768		882
769	defined wantarray && AnyEvent::Util::guard { %state = () }	883	defined wantarray && AnyEvent::Util::guard { %state = () }
770	}	884	}
771		885
…		…
806	string of the form C<http://host:port> (optionally C<https:...>), croaks	920	string of the form C<http://host:port> (optionally C<https:...>), croaks
807	otherwise.	921	otherwise.
808		922
809	To clear an already-set proxy, use C<undef>.	923	To clear an already-set proxy, use C<undef>.
810		924
		925	=item $date = AnyEvent::HTTP::format_date $timestamp
		926
		927	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
		928	Date (RFC 2616).
		929
		930	=item $timestamp = AnyEvent::HTTP::parse_date $date
		931
		932	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) and
		933	returns the corresponding POSIX timestamp, or C<undef> if the date cannot
		934	be parsed.
		935
811	=item $AnyEvent::HTTP::MAX_RECURSE	936	=item $AnyEvent::HTTP::MAX_RECURSE
812		937
813	The default value for the C<recurse> request parameter (default: C<10>).	938	The default value for the C<recurse> request parameter (default: C<10>).
814		939
815	=item $AnyEvent::HTTP::USERAGENT	940	=item $AnyEvent::HTTP::USERAGENT
…		…
833	connections. This number of can be useful for load-leveling.	958	connections. This number of can be useful for load-leveling.
834		959
835	=back	960	=back
836		961
837	=cut	962	=cut
		963
		964	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		965	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		966
		967	sub format_date($) {
		968	my ($time) = @_;
		969
		970	# RFC 822/1123 format
		971	my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time;
		972
		973	sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT",
		974	$weekday[$wday], $mday, $month[$mon], $year + 1900,
		975	$H, $M, $S;
		976	}
		977
		978	sub parse_date($) {
		979	my ($date) = @_;
		980
		981	my ($d, $m, $y, $H, $M, $S);
		982
		983	if ($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$/) {
		984	# RFC 822/1123, required by RFC 2616 (with " ")
		985	# cookie dates (with "-")
		986
		987	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
		988
		989	} elsif ($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$/) {
		990	# RFC 850
		991	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
		992
		993	} elsif ($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])$/) {
		994	# ISO C's asctime
		995	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
		996	}
		997	# other formats fail in the loop below
		998
		999	for (0..11) {
		1000	if ($m eq $month[$_]) {
		1001	require Time::Local;
		1002	return Time::Local::timegm ($S, $M, $H, $d, $_, $y);
		1003	}
		1004	}
		1005
		1006	undef
		1007	}
838		1008
839	sub set_proxy($) {	1009	sub set_proxy($) {
840	if (length $_[0]) {	1010	if (length $_[0]) {
841	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix	1011	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
842	or Carp::croak "$_[0]: invalid proxy URL";	1012	or Carp::croak "$_[0]: invalid proxy URL";

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+Removed lines
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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.60 by root, Thu Dec 30 02:56:28 2010 UTC vs. Revision 1.70 by root, Fri Dec 31 20:31:47 2010 UTC

Diff Legend

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.60 by root, Thu Dec 30 02:56:28 2010 UTC vs.
Revision 1.70 by root, Fri Dec 31 20:31:47 2010 UTC