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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.61 by root, Thu Dec 30 03:45:01 2010 UTC vs.
Revision 1.71 by root, Fri Dec 31 20:50:58 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	sub cookie_jar_extract($$$$) {
		370	my ($jar, $uscheme, $uhost, $upath) = @_;
		371
		372	%$jar = () if $jar->{version} != 1;
		373
		374	my @cookies;
		375
		376	while (my ($chost, $paths) = each %$jar) {
		377	next unless ref $paths;
		378
		379	if ($chost =~ /^\./) {
		380	next unless $chost eq substr $uhost, -length $chost;
		381	} elsif ($chost =~ /\./) {
		382	next unless $chost eq $uhost;
		383	} else {
		384	next;
		385	}
		386
		387	while (my ($cpath, $cookies) = each %$paths) {
		388	next unless $cpath eq substr $upath, 0, length $cpath;
		389
		390	while (my ($cookie, $kv) = each %$cookies) {
		391	next if $uscheme ne "https" && exists $kv->{secure};
		392
		393	if (exists $kv->{expires}) {
		394	if (AE::now > parse_date ($kv->{expires})) {
		395	delete $cookies->{$cookie};
		396	next;
		397	}
		398	}
		399
		400	my $value = $kv->{value};
		401
		402	if ($value =~ /[=;,[:space:]]/) {
		403	$value =~ s/([\\"])/\\$1/g;
		404	$value = "\"$value\"";
		405	}
		406
		407	push @cookies, "$cookie=$value";
		408	}
		409	}
		410	}
		411
		412	\@cookies
		413	}
		414
		415	# continue to parse $_ for headers and place them into the arg
		416	sub parse_hdr() {
		417	my %hdr;
		418
		419	# things seen, not parsed:
		420	# p3pP="NON CUR OTPi OUR NOR UNI"
		421
		422	$hdr{lc $1} .= ",$2"
		423	while /\G
		424	([^:\000-\037]*):
		425	[\011\040]*
		426	((?: [^\012]+ \| \012[\011\040] )*)
		427	\012
		428	/gxc;
		429
		430	/\G$/
		431	or return;
		432
		433	# remove the "," prefix we added to all headers above
		434	substr $_, 0, 1, ""
		435	for values %hdr;
		436
		437	\%hdr
		438	}
		439
354	our $qr_nlnl = qr{(?<![^\012])\015?\012};	440	our $qr_nlnl = qr{(?<![^\012])\015?\012};
355		441
356	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	442	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
357	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	443	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
358		444
…		…
377	my @pseudo = (URL => $url);	463	my @pseudo = (URL => $url);
378	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};	464	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
379		465
380	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	466	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
381		467
382	return $cb->(undef, { Status => 599, Reason => "Too many redirections", @pseudo })	468	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
383	if $recurse < 0;	469	if $recurse < 0;
384		470
385	my $proxy = $arg{proxy} \|\| $PROXY;	471	my $proxy = $arg{proxy} \|\| $PROXY;
386	my $timeout = $arg{timeout} \|\| $TIMEOUT;	472	my $timeout = $arg{timeout} \|\| $TIMEOUT;
387		473
…		…
390		476
391	$uscheme = lc $uscheme;	477	$uscheme = lc $uscheme;
392		478
393	my $uport = $uscheme eq "http" ? 80	479	my $uport = $uscheme eq "http" ? 80
394	: $uscheme eq "https" ? 443	480	: $uscheme eq "https" ? 443
395	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", @pseudo });	481	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
396		482
397	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	483	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
398	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", @pseudo });	484	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
399		485
400	my $uhost = $1;	486	my $uhost = $1;
401	$uport = $2 if defined $2;	487	$uport = $2 if defined $2;
402		488
403	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"	489	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
…		…
408		494
409	$upath =~ s%^/?%/%;	495	$upath =~ s%^/?%/%;
410		496
411	# cookie processing	497	# cookie processing
412	if (my $jar = $arg{cookie_jar}) {	498	if (my $jar = $arg{cookie_jar}) {
413	%$jar = () if $jar->{version} != 1;	499	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
414		500
415	my @cookie;
416
417	while (my ($chost, $v) = each %$jar) {
418	if ($chost =~ /^\./) {
419	next unless $chost eq substr $uhost, -length $chost;
420	} elsif ($chost =~ /\./) {
421	next unless $chost eq $uhost;
422	} else {
423	next;
424	}
425
426	while (my ($cpath, $v) = each %$v) {
427	next unless $cpath eq substr $upath, 0, length $cpath;
428
429	while (my ($k, $v) = each %$v) {
430	next if $uscheme ne "https" && exists $v->{secure};
431	my $value = $v->{value};
432	$value =~ s/([\\"])/\\$1/g;
433	push @cookie, "$k=\"$value\"";
434	}
435	}
436	}
437
438	$hdr{cookie} = join "; ", @cookie	501	$hdr{cookie} = join "; ", @$cookies
439	if @cookie;	502	if @$cookies;
440	}	503	}
441		504
442	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	505	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
443		506
444	if ($proxy) {	507	if ($proxy) {
…		…
452	} else {	515	} else {
453	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	516	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
454	}	517	}
455		518
456	# leave out fragment and query string, just a heuristic	519	# leave out fragment and query string, just a heuristic
457	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	520	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
458	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	521	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
459		522
460	$hdr{"content-length"} = length $arg{body}	523	$hdr{"content-length"} = length $arg{body}
461	if length $arg{body} \|\| $method ne "GET";	524	if length $arg{body} \|\| $method ne "GET";
462		525
		526	$hdr{connection} = "close TE"; #1.1
		527	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
		528
463	my %state = (connect_guard => 1);	529	my %state = (connect_guard => 1);
464		530
465	_get_slot $uhost, sub {	531	_get_slot $uhost, sub {
466	$state{slot_guard} = shift;	532	$state{slot_guard} = shift;
467		533
468	return unless $state{connect_guard};	534	return unless $state{connect_guard};
469		535
470	my $tcp_connect = $arg{tcp_connect}	536	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	537	$state{fh} = shift
478	or do {	538	or do {
479	my $err = "$!";	539	my $err = "$!";
480	%state = ();	540	%state = ();
481	return $cb->(undef, { Status => 599, Reason => $err, @pseudo });	541	return $cb->(undef, { @pseudo, Status => 599, Reason => $err });
482	};	542	};
483		543
484	pop; # free memory, save a tree	544	pop; # free memory, save a tree
485		545
486	return unless delete $state{connect_guard};	546	return unless delete $state{connect_guard};
487		547
488	# get handle	548	# get handle
489	$state{handle} = new AnyEvent::Handle	549	$state{handle} = new AnyEvent::Handle
490	fh => $state{fh},	550	fh => $state{fh},
491	peername => $rhost,	551	peername => $rhost,
492	tls_ctx => $arg{tls_ctx},	552	tls_ctx => $arg{tls_ctx},
493	# these need to be reconfigured on keepalive handles	553	# these need to be reconfigured on keepalive handles
494	timeout => $timeout,	554	timeout => $timeout,
495	on_error => sub {	555	on_error => sub {
496	%state = ();	556	%state = ();
497	$cb->(undef, { Status => 599, Reason => $_[2], @pseudo });	557	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });
498	},	558	},
499	on_eof => sub {	559	on_eof => sub {
500	%state = ();	560	%state = ();
501	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", @pseudo });	561	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });
502	},	562	},
503	;	563	;
504		564
505	# limit the number of persistent connections	565	# limit the number of persistent connections
506	# keepalive not yet supported	566	# keepalive not yet supported
507	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	567	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
508	# ++$KA_COUNT{$_[1]};	568	# ++$KA_COUNT{$_[1]};
509	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {	569	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
510	# --$KA_COUNT{$_[1]}	570	# --$KA_COUNT{$_[1]}
511	# };	571	# };
512	# $hdr{connection} = "keep-alive";	572	# $hdr{connection} = "keep-alive";
513	# } else {
514	delete $hdr{connection};
515	# }	573	# }
516		574
517	$state{handle}->starttls ("connect") if $rscheme eq "https";	575	$state{handle}->starttls ("connect") if $rscheme eq "https";
518		576
519	# handle actual, non-tunneled, request	577	# handle actual, non-tunneled, request
520	my $handle_actual_request = sub {	578	my $handle_actual_request = sub {
521	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	579	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
522		580
523	# send request	581	# send request
524	$state{handle}->push_write (	582	$state{handle}->push_write (
525	"$method $rpath HTTP/1.0\015\012"	583	"$method $rpath HTTP/1.1\015\012"
526	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	584	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
527	. "\015\012"	585	. "\015\012"
528	. (delete $arg{body})	586	. (delete $arg{body})
529	);	587	);
530		588
531	# return if error occured during push_write()	589	# return if error occured during push_write()
532	return unless %state;	590	return unless %state;
533		591
534	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use	592	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
535		593
536	# status line and headers	594	# status line and headers
537	$state{handle}->push_read (line => $qr_nlnl, sub {	595	$state{read_response} = sub {
538	for ("$_[1]") {	596	for ("$_[1]") {
539	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	597	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
540		598
541	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )? \015?\012/igxc	599	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc
542	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response", @pseudo }));	600	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
543		601
		602	# 100 Continue handling
		603	# should not happen as we don't send expect: 100-continue,
		604	# but we handle it just in case.
		605	# since we send the request body regardless, if we get an error
		606	# we are out of-sync, which we currently do NOT handle correctly.
		607	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
		608	if $2 eq 100;
		609
544	push @pseudo,	610	push @pseudo,
545	HTTPVersion => $1,	611	HTTPVersion => $1,
546	Status => $2,	612	Status => $2,
547	Reason => $3,	613	Reason => $3,
548	;	614	;
549		615
550	# things seen, not parsed:	616	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 }));	617	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		618
		619	%hdr = (%$hdr, @pseudo);
		620	}
		621
		622	# redirect handling
		623	# microsoft and other shitheads don't give a shit for following standards,
		624	# try to support some common forms of broken Location headers.
		625	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		626	$hdr{location} =~ s/^\.\/+//;
		627
		628	my $url = "$rscheme://$uhost:$uport";
		629
		630	unless ($hdr{location} =~ s/^\///) {
		631	$url .= $upath;
		632	$url =~ s/\/[^\/]*$//;
563	}	633	}
564		634
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}";	635	$hdr{location} = "$url/$hdr{location}";
		636	}
		637
		638	my $redirect;
		639
		640	if ($recurse) {
		641	my $status = $hdr{Status};
		642
		643	# industry standard is to redirect POST as GET for
		644	# 301, 302 and 303, in contrast to http/1.0 and 1.1.
		645	# also, the UA should ask the user for 301 and 307 and POST,
		646	# industry standard seems to be to simply follow.
		647	# we go with the industry standard.
		648	if ($status == 301 or $status == 302 or $status == 303) {
		649	# HTTP/1.1 is unclear on how to mutate the method
		650	$method = "GET" unless $method eq "HEAD";
		651	$redirect = 1;
		652	} elsif ($status == 307) {
		653	$redirect = 1;
586	}	654	}
		655	}
587		656
		657	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
588	my $redirect;	658	my $keepalive = pop;
589		659
		660	$state{handle}->destroy if $state{handle};
		661	%state = ();
		662
		663	if (defined $_[1]) {
		664	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		665	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		666	}
		667
		668	# set-cookie processing
590	if ($recurse) {	669	if ($arg{cookie_jar}) {
591	my $status = $hdr{Status};	670	for ($hdr{"set-cookie"}) {
		671	# parse NAME=VALUE
		672	my @kv;
592		673
593	# industry standard is to redirect POST as GET for	674	while (
594	# 301, 302 and 303, in contrast to http/1.0 and 1.1.	675	m{
595	# also, the UA should ask the user for 301 and 307 and POST,	676	\G\s*
596	# industry standard seems to be to simply follow.	677	(?:
597	# we go with the industry standard.	678	expires \s=\s ([A-Z][a-z][a-z],\ [^,;]+)
598	if ($status == 301 or $status == 302 or $status == 303) {	679	\| ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )
599	# HTTP/1.1 is unclear on how to mutate the method	680	)
600	$method = "GET" unless $method eq "HEAD";	681	}gcxsi
		682	) {
		683	my $name = $2;
		684	my $value = $4;
		685
		686	unless (defined $name) {
		687	# expires
		688	$name = "expires";
		689	$value = $1;
		690	} elsif (!defined $value) {
		691	# quoted
		692	$value = $3;
		693	$value =~ s/\\(.)/$1/gs;
		694	}
		695
		696	push @kv, lc $name, $value;
		697
		698	last unless /\G\s*;/gc;
		699	}
		700
		701	last unless @kv;
		702
		703	my $name = shift @kv;
		704	my %kv = (value => shift @kv, @kv);
		705
		706	$kv{expires} \|\|= format_date (AE::now + $kv{"max-age"})
		707	if exists $kv{"max-age"};
		708
		709	my $cdom;
		710	my $cpath = (delete $kv{path}) \|\| "/";
		711
		712	if (exists $kv{domain}) {
		713	$cdom = delete $kv{domain};
		714
		715	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		716
		717	next if $cdom =~ /\.$/;
		718
		719	# this is not rfc-like and not netscape-like. go figure.
		720	my $ndots = $cdom =~ y/.//;
		721	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		722	} else {
		723	$cdom = $uhost;
		724	}
		725
601	$redirect = 1;	726	# store it
602	} elsif ($status == 307) {	727	$arg{cookie_jar}{version} = 1;
603	$redirect = 1;	728	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
		729
		730	redo if /\G\s*,/gc;
604	}	731	}
605	}	732	}
606		733
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 $hdr{location}) {	734	if ($redirect && exists $hdr{location}) {
662	# we ignore any errors, as it is very common to receive	735	# we ignore any errors, as it is very common to receive
663	# Content-Length != 0 but no actual body	736	# Content-Length != 0 but no actual body
664	# we also access %hdr, as $_[1] might be an erro	737	# we also access %hdr, as $_[1] might be an erro
665	http_request (	738	http_request (
666	$method => $hdr{location},	739	$method => $hdr{location},
667	%arg,	740	%arg,
668	recurse => $recurse - 1,	741	recurse => $recurse - 1,
669	Redirect => \@_,	742	Redirect => [$_[0], \%hdr],
670	$cb);	743	$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 {	744	} else {
		745	$cb->($_[0], \%hdr);
		746	}
		747	};
		748
		749	my $len = $hdr{"content-length"};
		750
		751	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		752	$finish->(undef, 598 => "Request cancelled by on_header");
		753	} elsif (
		754	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		755	or $method eq "HEAD"
		756	or (defined $len && !$len)
		757	) {
		758	# no body
		759	$finish->("", undef, undef, 1);
		760	} else {
688	# body handling, four different code paths	761	# body handling, many different code paths
689	# for want_body_handle, on_body (2x), normal (2x)	762	# - no body expected
690	# we might read too much here, but it does not matter yet (no pers. connections)	763	# - want_body_handle
		764	# - te chunked
		765	# - 2x length known (with or without on_body)
		766	# - 2x length not known (with or without on_body)
691	if (!$redirect && $arg{want_body_handle}) {	767	if (!$redirect && $arg{want_body_handle}) {
692	$_[0]->on_eof (undef);	768	$_[0]->on_eof (undef);
693	$_[0]->on_error (undef);	769	$_[0]->on_error (undef);
694	$_[0]->on_read (undef);	770	$_[0]->on_read (undef);
695		771
696	$finish->(delete $state{handle}, \%hdr);	772	$finish->(delete $state{handle});
697		773
698	} elsif ($arg{on_body}) {	774	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		775	my $cl = 0;
		776	my $body = undef;
		777	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		778
699	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });	779	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		780
		781	my $read_chunk; $read_chunk = sub {
		782	$_[1] =~ /^([0-9a-fA-F]+)/
		783	or $finish->(undef, 599 => "Garbled chunked transfer encoding");
		784
		785	my $len = hex $1;
		786
700	if ($len) {	787	if ($len) {
701	$_[0]->on_eof (undef);	788	$cl += $len;
		789
		790	$_[0]->push_read (chunk => $len, sub {
		791	$on_body->($_[1], \%hdr)
		792	or return $finish->(undef, 598 => "Request cancelled by on_body");
		793
702	$_[0]->on_read (sub {	794	$_[0]->push_read (line => sub {
703	$len -= length $_[0]{rbuf};	795	length $_[1]
704		796	and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
705	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	797	$_[0]->push_read (line => $read_chunk);
706	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
707
708	$len > 0	798	});
709	or $finish->("", \%hdr);
710	});	799	});
711	} else {	800	} else {
712	$_[0]->on_eof (sub {	801	$hdr{"content-length"} \|\|= $cl;
713	$finish->("", \%hdr);	802
		803	$_[0]->push_read (line => $qr_nlnl, sub {
		804	if (length $_[1]) {
		805	for ("$_[1]") {
		806	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		807
		808	my $hdr = parse_hdr
		809	or return $finish->(undef, 599 => "Garbled response trailers");
		810
		811	%hdr = (%hdr, %$hdr);
		812	}
714	});	813	}
715	$_[0]->on_read (sub {	814
716	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	815	$finish->($body, undef, undef, 1);
717	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
718	});	816	});
719	}	817	}
		818	};
		819
		820	$_[0]->push_read (line => $read_chunk);
		821
		822	} elsif ($arg{on_body}) {
		823	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		824
		825	if ($len) {
		826	$_[0]->on_read (sub {
		827	$len -= length $_[0]{rbuf};
		828
		829	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		830	or return $finish->(undef, 598 => "Request cancelled by on_body");
		831
		832	$len > 0
		833	or $finish->("", undef, undef, 1);
		834	});
720	} else {	835	} else {
721	$_[0]->on_eof (undef);	836	$_[0]->on_eof (sub {
722		837	$finish->("");
723	if ($len) {	838	});
724	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
725	$_[0]->on_read (sub {	839	$_[0]->on_read (sub {
		840	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		841	or $finish->(undef, 598 => "Request cancelled by on_body");
		842	});
		843	}
		844	} else {
		845	$_[0]->on_eof (undef);
		846
		847	if ($len) {
		848	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		849	$_[0]->on_read (sub {
726	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)	850	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
727	if $len <= length $_[0]{rbuf};	851	if $len <= length $_[0]{rbuf};
728	});	852	});
729	} else {	853	} else {
730	$_[0]->on_error (sub {	854	$_[0]->on_error (sub {
731	($! == Errno::EPIPE \|\| !$!)	855	($! == Errno::EPIPE \|\| !$!)
732	? $finish->(delete $_[0]{rbuf}, \%hdr)	856	? $finish->(delete $_[0]{rbuf})
733	: $finish->(undef, { Status => 599, Reason => $_[2], @pseudo });	857	: $finish->(undef, 599 => $_[2]);
734	});	858	});
735	$_[0]->on_read (sub { });	859	$_[0]->on_read (sub { });
736	}
737	}	860	}
738	}	861	}
739	});	862	}
740	};	863	};
741		864
		865	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
		866	};
		867
742	# now handle proxy-CONNECT method	868	# now handle proxy-CONNECT method
743	if ($proxy && $uscheme eq "https") {	869	if ($proxy && $uscheme eq "https") {
744	# oh dear, we have to wrap it into a connect request	870	# oh dear, we have to wrap it into a connect request
745		871
746	# maybe re-use $uauthority with patched port?	872	# 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");	873	$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 {	874	$state{handle}->push_read (line => $qr_nlnl, sub {
749	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	875	$_[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 }));	876	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
751		877
752	if ($2 == 200) {	878	if ($2 == 200) {
753	$rpath = $upath;	879	$rpath = $upath;
754	&$handle_actual_request;	880	&$handle_actual_request;
755	} else {	881	} else {
756	%state = ();	882	%state = ();
757	$cb->(undef, { Status => $2, Reason => $3, @pseudo });	883	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
758	}
759	});	884	}
		885	});
760	} else {	886	} else {
761	&$handle_actual_request;	887	&$handle_actual_request;
762	}
763
764	},	888	}
765	$arg{on_prepare} \|\| sub { $timeout }
766	);	889	};
		890
		891	my $tcp_connect = $arg{tcp_connect}
		892	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		893
		894	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		895
767	};	896	};
768		897
769	defined wantarray && AnyEvent::Util::guard { %state = () }	898	defined wantarray && AnyEvent::Util::guard { %state = () }
770	}	899	}
771		900
…		…
813	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP	942	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
814	Date (RFC 2616).	943	Date (RFC 2616).
815		944
816	=item $timestamp = AnyEvent::HTTP::parse_date $date	945	=item $timestamp = AnyEvent::HTTP::parse_date $date
817		946
818	Takes a HTTP Date (RFC 2616) and returns the corresponding POSIX	947	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) and
819	timestamp, or C<undef> if the date cannot be parsed.	948	returns the corresponding POSIX timestamp, or C<undef> if the date cannot
		949	be parsed.
820		950
821	=item $AnyEvent::HTTP::MAX_RECURSE	951	=item $AnyEvent::HTTP::MAX_RECURSE
822		952
823	The default value for the C<recurse> request parameter (default: C<10>).	953	The default value for the C<recurse> request parameter (default: C<10>).
824		954
…		…
863	sub parse_date($) {	993	sub parse_date($) {
864	my ($date) = @_;	994	my ($date) = @_;
865		995
866	my ($d, $m, $y, $H, $M, $S);	996	my ($d, $m, $y, $H, $M, $S);
867		997
868	if ($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$/) {	998	if ($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$/) {
869	# RFC 822/1123, required by RFC 2616	999	# RFC 822/1123, required by RFC 2616 (with " ")
		1000	# cookie dates (with "-")
		1001
870	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);	1002	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
871		1003
872	} elsif ($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$/) {	1004	} elsif ($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$/) {
873	# RFC 850	1005	# RFC 850
874	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);	1006	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.61 by root, Thu Dec 30 03:45:01 2010 UTC vs. Revision 1.71 by root, Fri Dec 31 20:50:58 2010 UTC

Diff Legend

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.61 by root, Thu Dec 30 03:45:01 2010 UTC vs.
Revision 1.71 by root, Fri Dec 31 20:50:58 2010 UTC