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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.62 by root, Thu Dec 30 04:30:24 2010 UTC vs.
Revision 1.75 by root, Sat Jan 1 00:08:51 2011 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, with the header name (I<MUST be in lowercase>)	155	The request headers to use. Currently, C<http_request> may provide its own
153	as key and header value as hash value.	156	C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers and
154		157	will provide defaults at least for C<TE:>, C<Referer:> and C<User-Agent:>
155	Currently, http_request> may provide its own C<host>, C<content-length>,	158	(this can be suppressed by using C<undef> for these headers in which case
156	C<connection> and C<cookie> headers and will provide defaults for	159	they won't be sent at all).
157	C<user-agent> and C<referer> (this can be suppressed by using a value of
158	C<undef> for these headers in which case they won't be sent at all).
159		160
160	=item timeout => $seconds	161	=item timeout => $seconds
161		162
162	The time-out to use for various stages - each connect attempt will reset	163	The time-out to use for various stages - each connect attempt will reset
163	the timeout, as will read or write activity, i.e. this is not an overall	164	the timeout, as will read or write activity, i.e. this is not an overall
…		…
173	C<$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
174	HTTPS.	175	HTTPS.
175		176
176	=item body => $string	177	=item body => $string
177		178
178	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
179	this module might offer more options).	180	this module might offer more options).
180		181
181	=item cookie_jar => $hash_ref	182	=item cookie_jar => $hash_ref
182		183
183	Passing this parameter enables (simplified) cookie-processing, loosely	184	Passing this parameter enables (simplified) cookie-processing, loosely
184	based on the original netscape specification.	185	based on the original netscape specification.
185		186
186	The C<$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
187	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
188	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
189	recommended, as expiry times are currently being ignored.	190	recommended, as session-only cookies might survive longer than expected.
190		191
191	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
192	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
193	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
194	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
195	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.
196		201
197	=item tls_ctx => $scheme \| $tls_ctx	202	=item tls_ctx => $scheme \| $tls_ctx
198		203
199	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
200	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
…		…
239		244
240	This callback is useful, among other things, to quickly reject unwanted	245	This callback is useful, among other things, to quickly reject unwanted
241	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
242	doing a C<HEAD> request.	247	doing a C<HEAD> request.
243		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
244	Example: cancel the request unless the content-type is "text/html".	253	Example: cancel the request unless the content-type is "text/html".
245		254
246	on_header => sub {	255	on_header => sub {
247	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	256	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
248	},	257	},
…		…
254	string instead of the body data.	263	string instead of the body data.
255		264
256	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),
257	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
258	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.
259		271
260	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
261	(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
262	be extracted, or when the body should be processed incrementally.	274	be extracted, or when the body should be processed incrementally.
263		275
…		…
289	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
290	that doesn't solve your problem in a better way.	302	that doesn't solve your problem in a better way.
291		303
292	=back	304	=back
293		305
294	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.
295		308
296	http_request GET => "http://www.nethype.de/", sub {	309	http_request GET => "http://www.nethype.de/", sub {
297	my ($body, $hdr) = @_;	310	my ($body, $hdr) = @_;
298	print "$body\n";	311	print "$body\n";
299	};	312	};
300		313
301	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
302	timeout of 30 seconds.	315	timeout of 30 seconds.
303		316
304	http_request	317	http_request
305	GET => "https://www.google.com",	318	GET => "https://www.google.com",
306	timeout => 30,	319	timeout => 30,
…		…
309	use Data::Dumper;	322	use Data::Dumper;
310	print Dumper $hdr;	323	print Dumper $hdr;
311	}	324	}
312	;	325	;
313		326
314	Example: make another simple HTTP GET request, but immediately try to	327	Example: do another simple HTTP GET request, but immediately try to
315	cancel it.	328	cancel it.
316		329
317	my $request = http_request GET => "http://www.nethype.de/", sub {	330	my $request = http_request GET => "http://www.nethype.de/", sub {
318	my ($body, $hdr) = @_;	331	my ($body, $hdr) = @_;
319	print "$body\n";	332	print "$body\n";
…		…
351	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	364	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
352		365
353	_slot_schedule $_[0];	366	_slot_schedule $_[0];
354	}	367	}
355		368
		369	# extract cookies from jar
		370	sub cookie_jar_extract($$$$) {
		371	my ($jar, $uscheme, $uhost, $upath) = @_;
		372
		373	%$jar = () if $jar->{version} != 1;
		374
		375	my @cookies;
		376
		377	while (my ($chost, $paths) = each %$jar) {
		378	next unless ref $paths;
		379
		380	if ($chost =~ /^\./) {
		381	next unless $chost eq substr $uhost, -length $chost;
		382	} elsif ($chost =~ /\./) {
		383	next unless $chost eq $uhost;
		384	} else {
		385	next;
		386	}
		387
		388	while (my ($cpath, $cookies) = each %$paths) {
		389	next unless $cpath eq substr $upath, 0, length $cpath;
		390
		391	while (my ($cookie, $kv) = each %$cookies) {
		392	next if $uscheme ne "https" && exists $kv->{secure};
		393
		394	if (exists $kv->{expires}) {
		395	if (AE::now > parse_date ($kv->{expires})) {
		396	delete $cookies->{$cookie};
		397	next;
		398	}
		399	}
		400
		401	my $value = $kv->{value};
		402
		403	if ($value =~ /[=;,[:space:]]/) {
		404	$value =~ s/([\\"])/\\$1/g;
		405	$value = "\"$value\"";
		406	}
		407
		408	push @cookies, "$cookie=$value";
		409	}
		410	}
		411	}
		412
		413	\@cookies
		414	}
		415
		416	# parse set_cookie header into jar
		417	sub cookie_jar_set_cookie($$$) {
		418	my ($jar, $set_cookie, $uhost) = @_;
		419
		420	for ($set_cookie) {
		421	# parse NAME=VALUE
		422	my @kv;
		423
		424	while (
		425	m{
		426	\G\s*
		427	(?:
		428	expires \s=\s ([A-Z][a-z][a-z],\ [^,;]+)
		429	\| ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )
		430	)
		431	}gcxsi
		432	) {
		433	my $name = $2;
		434	my $value = $4;
		435
		436	unless (defined $name) {
		437	# expires
		438	$name = "expires";
		439	$value = $1;
		440	} elsif (!defined $value) {
		441	# quoted
		442	$value = $3;
		443	$value =~ s/\\(.)/$1/gs;
		444	}
		445
		446	push @kv, lc $name, $value;
		447
		448	last unless /\G\s*;/gc;
		449	}
		450
		451	last unless @kv;
		452
		453	my $name = shift @kv;
		454	my %kv = (value => shift @kv, @kv);
		455
		456	$kv{expires} \|\|= format_date (AE::now + $kv{"max-age"})
		457	if exists $kv{"max-age"};
		458
		459	my $cdom;
		460	my $cpath = (delete $kv{path}) \|\| "/";
		461
		462	if (exists $kv{domain}) {
		463	$cdom = delete $kv{domain};
		464
		465	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		466
		467	next if $cdom =~ /\.$/;
		468
		469	# this is not rfc-like and not netscape-like. go figure.
		470	my $ndots = $cdom =~ y/.//;
		471	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		472	} else {
		473	$cdom = $uhost;
		474	}
		475
		476	# store it
		477	$jar->{version} = 1;
		478	$jar->{$cdom}{$cpath}{$name} = \%kv;
		479
		480	redo if /\G\s*,/gc;
		481	}
		482	}
		483
		484	# continue to parse $_ for headers and place them into the arg
		485	sub parse_hdr() {
		486	my %hdr;
		487
		488	# things seen, not parsed:
		489	# p3pP="NON CUR OTPi OUR NOR UNI"
		490
		491	$hdr{lc $1} .= ",$2"
		492	while /\G
		493	([^:\000-\037]*):
		494	[\011\040]*
		495	((?: [^\012]+ \| \012[\011\040] )*)
		496	\012
		497	/gxc;
		498
		499	/\G$/
		500	or return;
		501
		502	# remove the "," prefix we added to all headers above
		503	substr $_, 0, 1, ""
		504	for values %hdr;
		505
		506	\%hdr
		507	}
		508
356	our $qr_nlnl = qr{(?<![^\012])\015?\012};	509	our $qr_nlnl = qr{(?<![^\012])\015?\012};
357		510
358	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	511	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
359	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	512	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
360		513
…		…
379	my @pseudo = (URL => $url);	532	my @pseudo = (URL => $url);
380	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};	533	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
381		534
382	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	535	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
383		536
384	return $cb->(undef, { Status => 599, Reason => "Too many redirections", @pseudo })	537	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
385	if $recurse < 0;	538	if $recurse < 0;
386		539
387	my $proxy = $arg{proxy} \|\| $PROXY;	540	my $proxy = $arg{proxy} \|\| $PROXY;
388	my $timeout = $arg{timeout} \|\| $TIMEOUT;	541	my $timeout = $arg{timeout} \|\| $TIMEOUT;
389		542
…		…
392		545
393	$uscheme = lc $uscheme;	546	$uscheme = lc $uscheme;
394		547
395	my $uport = $uscheme eq "http" ? 80	548	my $uport = $uscheme eq "http" ? 80
396	: $uscheme eq "https" ? 443	549	: $uscheme eq "https" ? 443
397	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", @pseudo });	550	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
398		551
399	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	552	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
400	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", @pseudo });	553	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
401		554
402	my $uhost = $1;	555	my $uhost = $1;
403	$uport = $2 if defined $2;	556	$uport = $2 if defined $2;
404		557
405	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"	558	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
…		…
410		563
411	$upath =~ s%^/?%/%;	564	$upath =~ s%^/?%/%;
412		565
413	# cookie processing	566	# cookie processing
414	if (my $jar = $arg{cookie_jar}) {	567	if (my $jar = $arg{cookie_jar}) {
415	%$jar = () if $jar->{version} != 1;	568	my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath;
416		569
417	my @cookie;
418
419	while (my ($chost, $v) = each %$jar) {
420	if ($chost =~ /^\./) {
421	next unless $chost eq substr $uhost, -length $chost;
422	} elsif ($chost =~ /\./) {
423	next unless $chost eq $uhost;
424	} else {
425	next;
426	}
427
428	while (my ($cpath, $v) = each %$v) {
429	next unless $cpath eq substr $upath, 0, length $cpath;
430
431	while (my ($k, $v) = each %$v) {
432	next if $uscheme ne "https" && exists $v->{secure};
433	my $value = $v->{value};
434	$value =~ s/([\\"])/\\$1/g;
435	push @cookie, "$k=\"$value\"";
436	}
437	}
438	}
439
440	$hdr{cookie} = join "; ", @cookie	570	$hdr{cookie} = join "; ", @$cookies
441	if @cookie;	571	if @$cookies;
442	}	572	}
443		573
444	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path	574	my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
445		575
446	if ($proxy) {	576	if ($proxy) {
…		…
454	} else {	584	} else {
455	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	585	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
456	}	586	}
457		587
458	# leave out fragment and query string, just a heuristic	588	# leave out fragment and query string, just a heuristic
459	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	589	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
460	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	590	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
461		591
462	$hdr{"content-length"} = length $arg{body}	592	$hdr{"content-length"} = length $arg{body}
463	if length $arg{body} \|\| $method ne "GET";	593	if length $arg{body} \|\| $method ne "GET";
464		594
		595	$hdr{connection} = "close TE"; #1.1
		596	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
		597
465	my %state = (connect_guard => 1);	598	my %state = (connect_guard => 1);
466		599
467	_get_slot $uhost, sub {	600	_get_slot $uhost, sub {
468	$state{slot_guard} = shift;	601	$state{slot_guard} = shift;
469		602
470	return unless $state{connect_guard};	603	return unless $state{connect_guard};
471		604
472	my $tcp_connect = $arg{tcp_connect}	605	my $connect_cb = sub {
473	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
474
475	$state{connect_guard} = $tcp_connect->(
476	$rhost,
477	$rport,
478	sub {
479	$state{fh} = shift	606	$state{fh} = shift
480	or do {	607	or do {
481	my $err = "$!";	608	my $err = "$!";
482	%state = ();	609	%state = ();
483	return $cb->(undef, { Status => 599, Reason => $err, @pseudo });	610	return $cb->(undef, { @pseudo, Status => 599, Reason => $err });
484	};	611	};
485		612
486	pop; # free memory, save a tree
487
488	return unless delete $state{connect_guard};	613	return unless delete $state{connect_guard};
489		614
490	# get handle	615	# get handle
491	$state{handle} = new AnyEvent::Handle	616	$state{handle} = new AnyEvent::Handle
492	fh => $state{fh},	617	fh => $state{fh},
493	peername => $rhost,	618	peername => $rhost,
494	tls_ctx => $arg{tls_ctx},	619	tls_ctx => $arg{tls_ctx},
495	# these need to be reconfigured on keepalive handles	620	# these need to be reconfigured on keepalive handles
496	timeout => $timeout,	621	timeout => $timeout,
497	on_error => sub {	622	on_error => sub {
498	%state = ();	623	%state = ();
499	$cb->(undef, { Status => 599, Reason => $_[2], @pseudo });	624	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });
500	},	625	},
501	on_eof => sub {	626	on_eof => sub {
502	%state = ();	627	%state = ();
503	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", @pseudo });	628	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });
504	},	629	},
505	;	630	;
506		631
507	# limit the number of persistent connections	632	# limit the number of persistent connections
508	# keepalive not yet supported	633	# keepalive not yet supported
509	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	634	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
510	# ++$KA_COUNT{$_[1]};	635	# ++$KA_COUNT{$_[1]};
511	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {	636	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
512	# --$KA_COUNT{$_[1]}	637	# --$KA_COUNT{$_[1]}
513	# };	638	# };
514	# $hdr{connection} = "keep-alive";	639	# $hdr{connection} = "keep-alive";
515	# } else {
516	delete $hdr{connection};
517	# }	640	# }
518		641
519	$state{handle}->starttls ("connect") if $rscheme eq "https";	642	$state{handle}->starttls ("connect") if $rscheme eq "https";
520		643
521	# handle actual, non-tunneled, request	644	# handle actual, non-tunneled, request
522	my $handle_actual_request = sub {	645	my $handle_actual_request = sub {
523	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	646	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
524		647
525	# send request	648	# send request
526	$state{handle}->push_write (	649	$state{handle}->push_write (
527	"$method $rpath HTTP/1.0\015\012"	650	"$method $rpath HTTP/1.1\015\012"
528	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	651	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
529	. "\015\012"	652	. "\015\012"
530	. (delete $arg{body})	653	. (delete $arg{body})
531	);	654	);
532		655
533	# return if error occured during push_write()	656	# return if error occured during push_write()
534	return unless %state;	657	return unless %state;
535		658
536	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use	659	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
537		660
538	# status line and headers	661	# status line and headers
539	$state{handle}->push_read (line => $qr_nlnl, sub {	662	$state{read_response} = sub {
540	for ("$_[1]") {	663	for ("$_[1]") {
541	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	664	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
542		665
543	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )? \015?\012/igxc	666	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc
544	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response", @pseudo }));	667	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
545		668
		669	# 100 Continue handling
		670	# should not happen as we don't send expect: 100-continue,
		671	# but we handle it just in case.
		672	# since we send the request body regardless, if we get an error
		673	# we are out of-sync, which we currently do NOT handle correctly.
		674	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
		675	if $2 eq 100;
		676
546	push @pseudo,	677	push @pseudo,
547	HTTPVersion => $1,	678	HTTPVersion => $1,
548	Status => $2,	679	Status => $2,
549	Reason => $3,	680	Reason => $3,
550	;	681	;
551		682
552	# things seen, not parsed:	683	my $hdr = parse_hdr
553	# p3pP="NON CUR OTPi OUR NOR UNI"
554
555	$hdr{lc $1} .= ",$2"
556	while /\G
557	([^:\000-\037]*):
558	[\011\040]*
559	((?: [^\012]+ \| \012[\011\040] )*)
560	\012
561	/gxc;
562
563	/\G$/
564	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", @pseudo }));	684	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		685
		686	%hdr = (%$hdr, @pseudo);
		687	}
		688
		689	# redirect handling
		690	# microsoft and other shitheads don't give a shit for following standards,
		691	# try to support some common forms of broken Location headers.
		692	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		693	$hdr{location} =~ s/^\.\/+//;
		694
		695	my $url = "$rscheme://$uhost:$uport";
		696
		697	unless ($hdr{location} =~ s/^\///) {
		698	$url .= $upath;
		699	$url =~ s/\/[^\/]*$//;
565	}	700	}
566		701
567	# remove the "," prefix we added to all headers above	702	$hdr{location} = "$url/$hdr{location}";
568	substr $_, 0, 1, ""	703	}
569	for values %hdr;
570		704
571	# patch in all pseudo headers	705	my $redirect;
572	%hdr = (%hdr, @pseudo);
573		706
		707	if ($recurse) {
		708	my $status = $hdr{Status};
		709
		710	# industry standard is to redirect POST as GET for
		711	# 301, 302 and 303, in contrast to http/1.0 and 1.1.
		712	# also, the UA should ask the user for 301 and 307 and POST,
		713	# industry standard seems to be to simply follow.
		714	# we go with the industry standard.
		715	if ($status == 301 or $status == 302 or $status == 303) {
		716	# HTTP/1.1 is unclear on how to mutate the method
		717	$method = "GET" unless $method eq "HEAD";
574	# redirect handling	718	$redirect = 1;
575	# microsoft and other shitheads don't give a shit for following standards,	719	} elsif ($status == 307) {
576	# try to support some common forms of broken Location headers.	720	$redirect = 1;
577	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {	721	}
578	$hdr{location} =~ s/^\.\/+//;	722	}
579		723
580	my $url = "$rscheme://$uhost:$uport";	724	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
		725	my $may_keep_alive = $_[3];
581		726
582	unless ($hdr{location} =~ s/^\///) {	727	$state{handle}->destroy if $state{handle};
		728	%state = ();
		729
		730	if (defined $_[1]) {
		731	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		732	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		733	}
		734
		735	# set-cookie processing
		736	if ($arg{cookie_jar}) {
		737	cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost;
		738	}
		739
		740	if ($redirect && exists $hdr{location}) {
		741	# we ignore any errors, as it is very common to receive
		742	# Content-Length != 0 but no actual body
		743	# we also access %hdr, as $_[1] might be an erro
		744	http_request (
		745	$method => $hdr{location},
		746	%arg,
		747	recurse => $recurse - 1,
		748	Redirect => [$_[0], \%hdr],
		749	$cb);
		750	} else {
		751	$cb->($_[0], \%hdr);
		752	}
		753	};
		754
		755	my $len = $hdr{"content-length"};
		756
		757	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		758	$finish->(undef, 598 => "Request cancelled by on_header");
		759	} elsif (
		760	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		761	or $method eq "HEAD"
		762	or (defined $len && !$len)
		763	) {
		764	# no body
		765	$finish->("", undef, undef, 1);
		766	} else {
		767	# body handling, many different code paths
		768	# - no body expected
		769	# - want_body_handle
		770	# - te chunked
		771	# - 2x length known (with or without on_body)
		772	# - 2x length not known (with or without on_body)
		773	if (!$redirect && $arg{want_body_handle}) {
		774	$_[0]->on_eof (undef);
		775	$_[0]->on_error (undef);
		776	$_[0]->on_read (undef);
		777
		778	$finish->(delete $state{handle});
		779
		780	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		781	my $cl = 0;
		782	my $body = undef;
		783	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		784
		785	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		786
		787	my $read_chunk; $read_chunk = sub {
		788	$_[1] =~ /^([0-9a-fA-F]+)/
		789	or $finish->(undef, 599 => "Garbled chunked transfer encoding");
		790
		791	my $len = hex $1;
		792
		793	if ($len) {
583	$url .= $upath;	794	$cl += $len;
584	$url =~ s/\/[^\/]*$//;	795
		796	$_[0]->push_read (chunk => $len, sub {
		797	$on_body->($_[1], \%hdr)
		798	or return $finish->(undef, 598 => "Request cancelled by on_body");
		799
		800	$_[0]->push_read (line => sub {
		801	length $_[1]
		802	and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
		803	$_[0]->push_read (line => $read_chunk);
		804	});
		805	});
		806	} else {
		807	$hdr{"content-length"} \|\|= $cl;
		808
		809	$_[0]->push_read (line => $qr_nlnl, sub {
		810	if (length $_[1]) {
		811	for ("$_[1]") {
		812	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		813
		814	my $hdr = parse_hdr
		815	or return $finish->(undef, 599 => "Garbled response trailers");
		816
		817	%hdr = (%hdr, %$hdr);
		818	}
		819	}
		820
		821	$finish->($body, undef, undef, 1);
		822	});
		823	}
		824	};
		825
		826	$_[0]->push_read (line => $read_chunk);
		827
		828	} elsif ($arg{on_body}) {
		829	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		830
		831	if ($len) {
		832	$_[0]->on_read (sub {
		833	$len -= length $_[0]{rbuf};
		834
		835	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		836	or return $finish->(undef, 598 => "Request cancelled by on_body");
		837
		838	$len > 0
		839	or $finish->("", undef, undef, 1);
		840	});
		841	} else {
		842	$_[0]->on_eof (sub {
		843	$finish->("");
		844	});
		845	$_[0]->on_read (sub {
		846	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		847	or $finish->(undef, 598 => "Request cancelled by on_body");
		848	});
585	}	849	}
586
587	$hdr{location} = "$url/$hdr{location}";
588	}	850	} else {
		851	$_[0]->on_eof (undef);
589		852
590	my $redirect;
591
592	if ($recurse) {	853	if ($len) {
593	my $status = $hdr{Status};	854	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
594		855	$_[0]->on_read (sub {
595	# industry standard is to redirect POST as GET for	856	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
596	# 301, 302 and 303, in contrast to http/1.0 and 1.1.	857	if $len <= length $_[0]{rbuf};
597	# also, the UA should ask the user for 301 and 307 and POST,
598	# industry standard seems to be to simply follow.
599	# we go with the industry standard.
600	if ($status == 301 or $status == 302 or $status == 303) {
601	# HTTP/1.1 is unclear on how to mutate the method
602	$method = "GET" unless $method eq "HEAD";
603	$redirect = 1;	858	});
604	} elsif ($status == 307) {	859	} else {
		860	$_[0]->on_error (sub {
		861	($! == Errno::EPIPE \|\| !$!)
		862	? $finish->(delete $_[0]{rbuf})
		863	: $finish->(undef, 599 => $_[2]);
605	$redirect = 1;	864	});
		865	$_[0]->on_read (sub { });
606	}	866	}
607	}	867	}
608
609	my $finish = sub {
610	$state{handle}->destroy if $state{handle};
611	%state = ();
612
613	# set-cookie processing
614	if ($arg{cookie_jar}) {
615	for ($_[1]{"set-cookie"}) {
616	# parse NAME=VALUE
617	my @kv;
618
619	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
620	my $name = $1;
621	my $value = $3;
622
623	unless ($value) {
624	$value = $2;
625	$value =~ s/\\(.)/$1/gs;
626	}
627
628	push @kv, $name => $value;
629
630	last unless /\G\s*;/gc;
631	}
632
633	last unless @kv;
634
635	my $name = shift @kv;
636	my %kv = (value => shift @kv, @kv);
637
638	my $cdom;
639	my $cpath = (delete $kv{path}) \|\| "/";
640
641	if (exists $kv{domain}) {
642	$cdom = delete $kv{domain};
643
644	$cdom =~ s/^\.?/./; # make sure it starts with a "."
645
646	next if $cdom =~ /\.$/;
647
648	# this is not rfc-like and not netscape-like. go figure.
649	my $ndots = $cdom =~ y/.//;
650	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
651	} else {
652	$cdom = $uhost;
653	}
654
655	# store it
656	$arg{cookie_jar}{version} = 1;
657	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
658
659	redo if /\G\s*,/gc;
660	}
661	}
662
663	if ($redirect && exists $hdr{location}) {
664	# we ignore any errors, as it is very common to receive
665	# Content-Length != 0 but no actual body
666	# we also access %hdr, as $_[1] might be an erro
667	http_request (
668	$method => $hdr{location},
669	%arg,
670	recurse => $recurse - 1,
671	Redirect => \@_,
672	$cb);
673	} else {
674	$cb->($_[0], $_[1]);
675	}
676	};
677
678	my $len = $hdr{"content-length"};
679
680	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
681	$finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", @pseudo });
682	} elsif (
683	$hdr{Status} =~ /^(?:1..\|[23]04)$/
684	or $method eq "HEAD"
685	or (defined $len && !$len)
686	) {
687	# no body
688	$finish->("", \%hdr);
689	} else {
690	# body handling, four different code paths
691	# for want_body_handle, on_body (2x), normal (2x)
692	# we might read too much here, but it does not matter yet (no pers. connections)
693	if (!$redirect && $arg{want_body_handle}) {
694	$_[0]->on_eof (undef);
695	$_[0]->on_error (undef);
696	$_[0]->on_read (undef);
697
698	$finish->(delete $state{handle}, \%hdr);
699
700	} elsif ($arg{on_body}) {
701	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
702	if ($len) {
703	$_[0]->on_eof (undef);
704	$_[0]->on_read (sub {
705	$len -= length $_[0]{rbuf};
706
707	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
708	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
709
710	$len > 0
711	or $finish->("", \%hdr);
712	});
713	} else {
714	$_[0]->on_eof (sub {
715	$finish->("", \%hdr);
716	});
717	$_[0]->on_read (sub {
718	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
719	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
720	});
721	}
722	} else {
723	$_[0]->on_eof (undef);
724
725	if ($len) {
726	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
727	$_[0]->on_read (sub {
728	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
729	if $len <= length $_[0]{rbuf};
730	});
731	} else {
732	$_[0]->on_error (sub {
733	($! == Errno::EPIPE \|\| !$!)
734	? $finish->(delete $_[0]{rbuf}, \%hdr)
735	: $finish->(undef, { Status => 599, Reason => $_[2], @pseudo });
736	});
737	$_[0]->on_read (sub { });
738	}
739	}
740	}
741	});	868	}
742	};	869	};
743		870
		871	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
		872	};
		873
744	# now handle proxy-CONNECT method	874	# now handle proxy-CONNECT method
745	if ($proxy && $uscheme eq "https") {	875	if ($proxy && $uscheme eq "https") {
746	# oh dear, we have to wrap it into a connect request	876	# oh dear, we have to wrap it into a connect request
747		877
748	# maybe re-use $uauthority with patched port?	878	# maybe re-use $uauthority with patched port?
749	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");	879	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
750	$state{handle}->push_read (line => $qr_nlnl, sub {	880	$state{handle}->push_read (line => $qr_nlnl, sub {
751	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	881	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
752	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", @pseudo }));	882	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
753		883
754	if ($2 == 200) {	884	if ($2 == 200) {
755	$rpath = $upath;	885	$rpath = $upath;
756	&$handle_actual_request;	886	&$handle_actual_request;
757	} else {	887	} else {
758	%state = ();	888	%state = ();
759	$cb->(undef, { Status => $2, Reason => $3, @pseudo });	889	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
760	}
761	});	890	}
		891	});
762	} else {	892	} else {
763	&$handle_actual_request;	893	&$handle_actual_request;
764	}
765
766	},	894	}
767	$arg{on_prepare} \|\| sub { $timeout }
768	);	895	};
		896
		897	my $tcp_connect = $arg{tcp_connect}
		898	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		899
		900	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		901
769	};	902	};
770		903
771	defined wantarray && AnyEvent::Util::guard { %state = () }	904	defined wantarray && AnyEvent::Util::guard { %state = () }
772	}	905	}
773		906
…		…
815	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP	948	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
816	Date (RFC 2616).	949	Date (RFC 2616).
817		950
818	=item $timestamp = AnyEvent::HTTP::parse_date $date	951	=item $timestamp = AnyEvent::HTTP::parse_date $date
819		952
820	Takes a HTTP Date (RFC 2616) and returns the corresponding POSIX	953	Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) and
821	timestamp, or C<undef> if the date cannot be parsed.	954	returns the corresponding POSIX timestamp, or C<undef> if the date cannot
		955	be parsed.
822		956
823	=item $AnyEvent::HTTP::MAX_RECURSE	957	=item $AnyEvent::HTTP::MAX_RECURSE
824		958
825	The default value for the C<recurse> request parameter (default: C<10>).	959	The default value for the C<recurse> request parameter (default: C<10>).
826		960
…		…
865	sub parse_date($) {	999	sub parse_date($) {
866	my ($date) = @_;	1000	my ($date) = @_;
867		1001
868	my ($d, $m, $y, $H, $M, $S);	1002	my ($d, $m, $y, $H, $M, $S);
869		1003
870	if ($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$/) {	1004	if ($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$/) {
871	# RFC 822/1123, required by RFC 2616	1005	# RFC 822/1123, required by RFC 2616 (with " ")
		1006	# cookie dates (with "-")
		1007
872	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);	1008	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
873		1009
874	} elsif ($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$/) {	1010	} elsif ($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$/) {
875	# RFC 850	1011	# RFC 850
876	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);	1012	($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 1.62 by root, Thu Dec 30 04:30:24 2010 UTC vs. Revision 1.75 by root, Sat Jan 1 00:08:51 2011 UTC

Diff Legend

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.62 by root, Thu Dec 30 04:30:24 2010 UTC vs.
Revision 1.75 by root, Sat Jan 1 00:08:51 2011 UTC