[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 1.68 by root, Fri Dec 31 19:22:18 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 for C<TE:>, C<Referer:> and C<User-Agent:> (this can
155	suppressed by using C<undef> for these headers in which case they won't be	158	be suppressed by using C<undef> for these headers in which case they won't
156	sent at all).	159	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
…		…
237		240
238	This callback is useful, among other things, to quickly reject unwanted	241	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	242	content, which, if it is supposed to be rare, can be faster than first
240	doing a C<HEAD> request.	243	doing a C<HEAD> request.
241		244
		245	The downside is that cancelling the request makes it impossible to re-use
		246	the connection. Also, the C<on_header> callback will not receive any
		247	trailer (headers sent after the response body).
		248
242	Example: cancel the request unless the content-type is "text/html".	249	Example: cancel the request unless the content-type is "text/html".
243		250
244	on_header => sub {	251	on_header => sub {
245	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	252	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
246	},	253	},
…		…
252	string instead of the body data.	259	string instead of the body data.
253		260
254	It has to return either true (in which case AnyEvent::HTTP will continue),	261	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	262	or false, in which case AnyEvent::HTTP will cancel the download (and call
256	the completion callback with an error code of C<598>).	263	the completion callback with an error code of C<598>).
		264
		265	The downside to cancelling the request is that it makes it impossible to
		266	re-use the connection.
257		267
258	This callback is useful when the data is too large to be held in memory	268	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	269	(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.	270	be extracted, or when the body should be processed incrementally.
261		271
…		…
287	If you think you need this, first have a look at C<on_body>, to see if	297	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.	298	that doesn't solve your problem in a better way.
289		299
290	=back	300	=back
291		301
292	Example: make a simple HTTP GET request for http://www.nethype.de/	302	Example: do a simple HTTP GET request for http://www.nethype.de/ and print
		303	the response body.
293		304
294	http_request GET => "http://www.nethype.de/", sub {	305	http_request GET => "http://www.nethype.de/", sub {
295	my ($body, $hdr) = @_;	306	my ($body, $hdr) = @_;
296	print "$body\n";	307	print "$body\n";
297	};	308	};
298		309
299	Example: make a HTTP HEAD request on https://www.google.com/, use a	310	Example: do a HTTP HEAD request on https://www.google.com/, use a
300	timeout of 30 seconds.	311	timeout of 30 seconds.
301		312
302	http_request	313	http_request
303	GET => "https://www.google.com",	314	GET => "https://www.google.com",
304	timeout => 30,	315	timeout => 30,
…		…
307	use Data::Dumper;	318	use Data::Dumper;
308	print Dumper $hdr;	319	print Dumper $hdr;
309	}	320	}
310	;	321	;
311		322
312	Example: make another simple HTTP GET request, but immediately try to	323	Example: do another simple HTTP GET request, but immediately try to
313	cancel it.	324	cancel it.
314		325
315	my $request = http_request GET => "http://www.nethype.de/", sub {	326	my $request = http_request GET => "http://www.nethype.de/", sub {
316	my ($body, $hdr) = @_;	327	my ($body, $hdr) = @_;
317	print "$body\n";	328	print "$body\n";
…		…
349	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	360	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
350		361
351	_slot_schedule $_[0];	362	_slot_schedule $_[0];
352	}	363	}
353		364
		365	# continue to parse $_ for headers and place them into the arg
		366	sub parse_hdr() {
		367	my %hdr;
		368
		369	# things seen, not parsed:
		370	# p3pP="NON CUR OTPi OUR NOR UNI"
		371
		372	$hdr{lc $1} .= ",$2"
		373	while /\G
		374	([^:\000-\037]*):
		375	[\011\040]*
		376	((?: [^\012]+ \| \012[\011\040] )*)
		377	\012
		378	/gxc;
		379
		380	/\G$/
		381	or return;
		382
		383	# remove the "," prefix we added to all headers above
		384	substr $_, 0, 1, ""
		385	for values %hdr;
		386
		387	\%hdr
		388	}
		389
354	our $qr_nlnl = qr{(?<![^\012])\015?\012};	390	our $qr_nlnl = qr{(?<![^\012])\015?\012};
355		391
356	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	392	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
357	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	393	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
358		394
…		…
377	my @pseudo = (URL => $url);	413	my @pseudo = (URL => $url);
378	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};	414	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
379		415
380	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	416	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
381		417
382	return $cb->(undef, { Status => 599, Reason => "Too many redirections", @pseudo })	418	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
383	if $recurse < 0;	419	if $recurse < 0;
384		420
385	my $proxy = $arg{proxy} \|\| $PROXY;	421	my $proxy = $arg{proxy} \|\| $PROXY;
386	my $timeout = $arg{timeout} \|\| $TIMEOUT;	422	my $timeout = $arg{timeout} \|\| $TIMEOUT;
387		423
…		…
390		426
391	$uscheme = lc $uscheme;	427	$uscheme = lc $uscheme;
392		428
393	my $uport = $uscheme eq "http" ? 80	429	my $uport = $uscheme eq "http" ? 80
394	: $uscheme eq "https" ? 443	430	: $uscheme eq "https" ? 443
395	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", @pseudo });	431	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
396		432
397	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	433	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
398	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", @pseudo });	434	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
399		435
400	my $uhost = $1;	436	my $uhost = $1;
401	$uport = $2 if defined $2;	437	$uport = $2 if defined $2;
402		438
403	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"	439	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
…		…
452	} else {	488	} else {
453	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	489	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
454	}	490	}
455		491
456	# leave out fragment and query string, just a heuristic	492	# leave out fragment and query string, just a heuristic
457	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	493	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
458	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	494	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
459		495
460	$hdr{"content-length"} = length $arg{body}	496	$hdr{"content-length"} = length $arg{body}
461	if length $arg{body} \|\| $method ne "GET";	497	if length $arg{body} \|\| $method ne "GET";
462		498
		499	$hdr{connection} = "close TE"; #1.1
		500	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
		501
463	my %state = (connect_guard => 1);	502	my %state = (connect_guard => 1);
464		503
465	_get_slot $uhost, sub {	504	_get_slot $uhost, sub {
466	$state{slot_guard} = shift;	505	$state{slot_guard} = shift;
467		506
468	return unless $state{connect_guard};	507	return unless $state{connect_guard};
469		508
470	my $tcp_connect = $arg{tcp_connect}	509	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	510	$state{fh} = shift
478	or do {	511	or do {
479	my $err = "$!";	512	my $err = "$!";
480	%state = ();	513	%state = ();
481	return $cb->(undef, { Status => 599, Reason => $err, @pseudo });	514	return $cb->(undef, { @pseudo, Status => 599, Reason => $err });
482	};	515	};
483		516
484	pop; # free memory, save a tree	517	pop; # free memory, save a tree
485		518
486	return unless delete $state{connect_guard};	519	return unless delete $state{connect_guard};
487		520
488	# get handle	521	# get handle
489	$state{handle} = new AnyEvent::Handle	522	$state{handle} = new AnyEvent::Handle
490	fh => $state{fh},	523	fh => $state{fh},
491	peername => $rhost,	524	peername => $rhost,
492	tls_ctx => $arg{tls_ctx},	525	tls_ctx => $arg{tls_ctx},
493	# these need to be reconfigured on keepalive handles	526	# these need to be reconfigured on keepalive handles
494	timeout => $timeout,	527	timeout => $timeout,
495	on_error => sub {	528	on_error => sub {
496	%state = ();	529	%state = ();
497	$cb->(undef, { Status => 599, Reason => $_[2], @pseudo });	530	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });
498	},	531	},
499	on_eof => sub {	532	on_eof => sub {
500	%state = ();	533	%state = ();
501	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", @pseudo });	534	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });
502	},	535	},
503	;	536	;
504		537
505	# limit the number of persistent connections	538	# limit the number of persistent connections
506	# keepalive not yet supported	539	# keepalive not yet supported
507	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	540	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
508	# ++$KA_COUNT{$_[1]};	541	# ++$KA_COUNT{$_[1]};
509	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {	542	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
510	# --$KA_COUNT{$_[1]}	543	# --$KA_COUNT{$_[1]}
511	# };	544	# };
512	# $hdr{connection} = "keep-alive";	545	# $hdr{connection} = "keep-alive";
513	# } else {
514	delete $hdr{connection};
515	# }	546	# }
516		547
517	$state{handle}->starttls ("connect") if $rscheme eq "https";	548	$state{handle}->starttls ("connect") if $rscheme eq "https";
518		549
519	# handle actual, non-tunneled, request	550	# handle actual, non-tunneled, request
520	my $handle_actual_request = sub {	551	my $handle_actual_request = sub {
521	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	552	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
522		553
523	# send request	554	# send request
524	$state{handle}->push_write (	555	$state{handle}->push_write (
525	"$method $rpath HTTP/1.0\015\012"	556	"$method $rpath HTTP/1.1\015\012"
526	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	557	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
527	. "\015\012"	558	. "\015\012"
528	. (delete $arg{body})	559	. (delete $arg{body})
529	);	560	);
530		561
531	# return if error occured during push_write()	562	# return if error occured during push_write()
532	return unless %state;	563	return unless %state;
533		564
534	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use	565	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
535		566
536	# status line and headers	567	# status line and headers
537	$state{handle}->push_read (line => $qr_nlnl, sub {	568	$state{read_response} = sub {
538	for ("$_[1]") {	569	for ("$_[1]") {
539	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	570	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
540		571
541	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )? \015?\012/igxc	572	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc
542	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response", @pseudo }));	573	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
543		574
		575	# 100 Continue handling
		576	# should not happen as we don't send expect: 100-continue,
		577	# but we handle it just in case.
		578	# since we send the request body regardless, if we get an error
		579	# we are out of-sync, which we currently do NOT handle correctly.
		580	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
		581	if $2 eq 100;
		582
544	push @pseudo,	583	push @pseudo,
545	HTTPVersion => $1,	584	HTTPVersion => $1,
546	Status => $2,	585	Status => $2,
547	Reason => $3,	586	Reason => $3,
548	;	587	;
549		588
550	# things seen, not parsed:	589	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 }));	590	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		591
		592	%hdr = (%$hdr, @pseudo);
		593	}
		594
		595	# redirect handling
		596	# microsoft and other shitheads don't give a shit for following standards,
		597	# try to support some common forms of broken Location headers.
		598	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		599	$hdr{location} =~ s/^\.\/+//;
		600
		601	my $url = "$rscheme://$uhost:$uport";
		602
		603	unless ($hdr{location} =~ s/^\///) {
		604	$url .= $upath;
		605	$url =~ s/\/[^\/]*$//;
563	}	606	}
564		607
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}";	608	$hdr{location} = "$url/$hdr{location}";
		609	}
		610
		611	my $redirect;
		612
		613	if ($recurse) {
		614	my $status = $hdr{Status};
		615
		616	# industry standard is to redirect POST as GET for
		617	# 301, 302 and 303, in contrast to http/1.0 and 1.1.
		618	# also, the UA should ask the user for 301 and 307 and POST,
		619	# industry standard seems to be to simply follow.
		620	# we go with the industry standard.
		621	if ($status == 301 or $status == 302 or $status == 303) {
		622	# HTTP/1.1 is unclear on how to mutate the method
		623	$method = "GET" unless $method eq "HEAD";
		624	$redirect = 1;
		625	} elsif ($status == 307) {
		626	$redirect = 1;
586	}	627	}
		628	}
587		629
		630	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
588	my $redirect;	631	my $keepalive = pop;
589		632
		633	$state{handle}->destroy if $state{handle};
		634	%state = ();
		635
		636	if (defined $_[1]) {
		637	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		638	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		639	}
		640
		641	# set-cookie processing
590	if ($recurse) {	642	if ($arg{cookie_jar}) {
591	my $status = $hdr{Status};	643	for ($hdr{"set-cookie"}) {
		644	# parse NAME=VALUE
		645	my @kv;
592		646
593	# industry standard is to redirect POST as GET for	647	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
594	# 301, 302 and 303, in contrast to http/1.0 and 1.1.
595	# also, the UA should ask the user for 301 and 307 and POST,
596	# industry standard seems to be to simply follow.
597	# we go with the industry standard.
598	if ($status == 301 or $status == 302 or $status == 303) {
599	# HTTP/1.1 is unclear on how to mutate the method
600	$method = "GET" unless $method eq "HEAD";
601	$redirect = 1;	648	my $name = $1;
602	} elsif ($status == 307) {	649	my $value = $3;
		650
		651	unless ($value) {
		652	$value = $2;
		653	$value =~ s/\\(.)/$1/gs;
		654	}
		655
		656	push @kv, $name => $value;
		657
		658	last unless /\G\s*;/gc;
		659	}
		660
		661	last unless @kv;
		662
		663	my $name = shift @kv;
		664	my %kv = (value => shift @kv, @kv);
		665
		666	my $cdom;
		667	my $cpath = (delete $kv{path}) \|\| "/";
		668
		669	if (exists $kv{domain}) {
		670	$cdom = delete $kv{domain};
		671
		672	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		673
		674	next if $cdom =~ /\.$/;
		675
		676	# this is not rfc-like and not netscape-like. go figure.
		677	my $ndots = $cdom =~ y/.//;
		678	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		679	} else {
		680	$cdom = $uhost;
		681	}
		682
603	$redirect = 1;	683	# store it
		684	$arg{cookie_jar}{version} = 1;
		685	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
		686
		687	redo if /\G\s*,/gc;
604	}	688	}
605	}	689	}
606		690
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 $hdr{location}) {	691	if ($redirect && exists $hdr{location}) {
662	# we ignore any errors, as it is very common to receive	692	# we ignore any errors, as it is very common to receive
663	# Content-Length != 0 but no actual body	693	# Content-Length != 0 but no actual body
664	# we also access %hdr, as $_[1] might be an erro	694	# we also access %hdr, as $_[1] might be an erro
665	http_request (	695	http_request (
666	$method => $hdr{location},	696	$method => $hdr{location},
667	%arg,	697	%arg,
668	recurse => $recurse - 1,	698	recurse => $recurse - 1,
669	Redirect => \@_,	699	Redirect => [$_[0], \%hdr],
670	$cb);	700	$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 {	701	} else {
		702	$cb->($_[0], \%hdr);
		703	}
		704	};
		705
		706	my $len = $hdr{"content-length"};
		707
		708	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		709	$finish->(undef, 598 => "Request cancelled by on_header");
		710	} elsif (
		711	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		712	or $method eq "HEAD"
		713	or (defined $len && !$len)
		714	) {
		715	# no body
		716	$finish->("", undef, undef, 1);
		717	} else {
688	# body handling, four different code paths	718	# body handling, many different code paths
689	# for want_body_handle, on_body (2x), normal (2x)	719	# - no body expected
690	# we might read too much here, but it does not matter yet (no pers. connections)	720	# - want_body_handle
		721	# - te chunked
		722	# - 2x length known (with or without on_body)
		723	# - 2x length not known (with or without on_body)
691	if (!$redirect && $arg{want_body_handle}) {	724	if (!$redirect && $arg{want_body_handle}) {
692	$_[0]->on_eof (undef);	725	$_[0]->on_eof (undef);
693	$_[0]->on_error (undef);	726	$_[0]->on_error (undef);
694	$_[0]->on_read (undef);	727	$_[0]->on_read (undef);
695		728
696	$finish->(delete $state{handle}, \%hdr);	729	$finish->(delete $state{handle});
697		730
698	} elsif ($arg{on_body}) {	731	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		732	my $cl = 0;
		733	my $body = undef;
		734	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		735
699	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });	736	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		737
		738	my $read_chunk; $read_chunk = sub {
		739	$_[1] =~ /^([0-9a-fA-F]+)/
		740	or $finish->(undef, 599 => "Garbled chunked transfer encoding");
		741
		742	my $len = hex $1;
		743
700	if ($len) {	744	if ($len) {
701	$_[0]->on_eof (undef);	745	$cl += $len;
		746
		747	$_[0]->push_read (chunk => $len, sub {
		748	$on_body->($_[1], \%hdr)
		749	or return $finish->(undef, 598 => "Request cancelled by on_body");
		750
702	$_[0]->on_read (sub {	751	$_[0]->push_read (line => sub {
703	$len -= length $_[0]{rbuf};	752	length $_[1]
704		753	and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
705	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	754	$_[0]->push_read (line => $read_chunk);
706	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
707
708	$len > 0	755	});
709	or $finish->("", \%hdr);
710	});	756	});
711	} else {	757	} else {
712	$_[0]->on_eof (sub {	758	$hdr{"content-length"} \|\|= $cl;
713	$finish->("", \%hdr);	759
		760	$_[0]->push_read (line => $qr_nlnl, sub {
		761	if (length $_[1]) {
		762	for ("$_[1]") {
		763	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		764
		765	my $hdr = parse_hdr
		766	or return $finish->(undef, 599 => "Garbled response trailers");
		767
		768	%hdr = (%hdr, %$hdr);
		769	}
714	});	770	}
715	$_[0]->on_read (sub {	771
716	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	772	$finish->($body, undef, undef, 1);
717	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo });
718	});	773	});
719	}	774	}
		775	};
		776
		777	$_[0]->push_read (line => $read_chunk);
		778
		779	} elsif ($arg{on_body}) {
		780	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		781
		782	if ($len) {
		783	$_[0]->on_read (sub {
		784	$len -= length $_[0]{rbuf};
		785
		786	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		787	or return $finish->(undef, 598 => "Request cancelled by on_body");
		788
		789	$len > 0
		790	or $finish->("", undef, undef, 1);
		791	});
720	} else {	792	} else {
721	$_[0]->on_eof (undef);	793	$_[0]->on_eof (sub {
722		794	$finish->("");
723	if ($len) {	795	});
724	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) });
725	$_[0]->on_read (sub {	796	$_[0]->on_read (sub {
		797	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		798	or $finish->(undef, 598 => "Request cancelled by on_body");
		799	});
		800	}
		801	} else {
		802	$_[0]->on_eof (undef);
		803
		804	if ($len) {
		805	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		806	$_[0]->on_read (sub {
726	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)	807	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
727	if $len <= length $_[0]{rbuf};	808	if $len <= length $_[0]{rbuf};
728	});	809	});
729	} else {	810	} else {
730	$_[0]->on_error (sub {	811	$_[0]->on_error (sub {
731	($! == Errno::EPIPE \|\| !$!)	812	($! == Errno::EPIPE \|\| !$!)
732	? $finish->(delete $_[0]{rbuf}, \%hdr)	813	? $finish->(delete $_[0]{rbuf})
733	: $finish->(undef, { Status => 599, Reason => $_[2], @pseudo });	814	: $finish->(undef, 599 => $_[2]);
734	});	815	});
735	$_[0]->on_read (sub { });	816	$_[0]->on_read (sub { });
736	}
737	}	817	}
738	}	818	}
739	});	819	}
740	};	820	};
741		821
		822	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
		823	};
		824
742	# now handle proxy-CONNECT method	825	# now handle proxy-CONNECT method
743	if ($proxy && $uscheme eq "https") {	826	if ($proxy && $uscheme eq "https") {
744	# oh dear, we have to wrap it into a connect request	827	# oh dear, we have to wrap it into a connect request
745		828
746	# maybe re-use $uauthority with patched port?	829	# 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");	830	$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 {	831	$state{handle}->push_read (line => $qr_nlnl, sub {
749	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	832	$_[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 }));	833	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
751		834
752	if ($2 == 200) {	835	if ($2 == 200) {
753	$rpath = $upath;	836	$rpath = $upath;
754	&$handle_actual_request;	837	&$handle_actual_request;
755	} else {	838	} else {
756	%state = ();	839	%state = ();
757	$cb->(undef, { Status => $2, Reason => $3, @pseudo });	840	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
758	}
759	});	841	}
		842	});
760	} else {	843	} else {
761	&$handle_actual_request;	844	&$handle_actual_request;
762	}
763
764	},	845	}
765	$arg{on_prepare} \|\| sub { $timeout }
766	);	846	};
		847
		848	my $tcp_connect = $arg{tcp_connect}
		849	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		850
		851	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		852
767	};	853	};
768		854
769	defined wantarray && AnyEvent::Util::guard { %state = () }	855	defined wantarray && AnyEvent::Util::guard { %state = () }
770	}	856	}
771		857
…		…
806	string of the form C<http://host:port> (optionally C<https:...>), croaks	892	string of the form C<http://host:port> (optionally C<https:...>), croaks
807	otherwise.	893	otherwise.
808		894
809	To clear an already-set proxy, use C<undef>.	895	To clear an already-set proxy, use C<undef>.
810		896
		897	=item $date = AnyEvent::HTTP::format_date $timestamp
		898
		899	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
		900	Date (RFC 2616).
		901
		902	=item $timestamp = AnyEvent::HTTP::parse_date $date
		903
		904	Takes a HTTP Date (RFC 2616) and returns the corresponding POSIX
		905	timestamp, or C<undef> if the date cannot be parsed.
		906
811	=item $AnyEvent::HTTP::MAX_RECURSE	907	=item $AnyEvent::HTTP::MAX_RECURSE
812		908
813	The default value for the C<recurse> request parameter (default: C<10>).	909	The default value for the C<recurse> request parameter (default: C<10>).
814		910
815	=item $AnyEvent::HTTP::USERAGENT	911	=item $AnyEvent::HTTP::USERAGENT
…		…
833	connections. This number of can be useful for load-leveling.	929	connections. This number of can be useful for load-leveling.
834		930
835	=back	931	=back
836		932
837	=cut	933	=cut
		934
		935	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		936	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		937
		938	sub format_date($) {
		939	my ($time) = @_;
		940
		941	# RFC 822/1123 format
		942	my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time;
		943
		944	sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT",
		945	$weekday[$wday], $mday, $month[$mon], $year + 1900,
		946	$H, $M, $S;
		947	}
		948
		949	sub parse_date($) {
		950	my ($date) = @_;
		951
		952	my ($d, $m, $y, $H, $M, $S);
		953
		954	if ($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$/) {
		955	# RFC 822/1123, required by RFC 2616
		956	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
		957
		958	} elsif ($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$/) {
		959	# RFC 850
		960	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
		961
		962	} elsif ($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])$/) {
		963	# ISO C's asctime
		964	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
		965	}
		966	# other formats fail in the loop below
		967
		968	for (0..11) {
		969	if ($m eq $month[$_]) {
		970	require Time::Local;
		971	return Time::Local::timegm ($S, $M, $H, $d, $_, $y);
		972	}
		973	}
		974
		975	undef
		976	}
838		977
839	sub set_proxy($) {	978	sub set_proxy($) {
840	if (length $_[0]) {	979	if (length $_[0]) {
841	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix	980	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
842	or Carp::croak "$_[0]: invalid proxy URL";	981	or Carp::croak "$_[0]: invalid proxy URL";

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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 1.68 by root, Fri Dec 31 19:22:18 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 1.68 by root, Fri Dec 31 19:22:18 2010 UTC