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

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.48 by root, Wed Aug 5 16:09:10 2009 UTC vs.
Revision 1.69 by root, Fri Dec 31 19:32:47 2010 UTC

…		…
41	use strict;	41	use strict;
42	no warnings;	42	no warnings;
43		43
44	use Errno ();	44	use Errno ();
45		45
46	use AnyEvent 4.8 ();	46	use AnyEvent 5.0 ();
47	use AnyEvent::Util ();	47	use AnyEvent::Util ();
48	use AnyEvent::Socket ();
49	use AnyEvent::Handle ();	48	use AnyEvent::Handle ();
50		49
51	use base Exporter::;	50	use base Exporter::;
52		51
53	our $VERSION = '1.42';	52	our $VERSION = '1.5';
54		53
55	our @EXPORT = qw(http_get http_post http_head http_request);	54	our @EXPORT = qw(http_get http_post http_head http_request);
56		55
57	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)";
58	our $MAX_RECURSE = 10;	57	our $MAX_RECURSE = 10;
…		…
92	must be an absolute http or https URL.	91	must be an absolute http or https URL.
93		92
94	When called in void context, nothing is returned. In other contexts,	93	When called in void context, nothing is returned. In other contexts,
95	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
96	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
97	destroyed before the callbakc is called, the request will be cancelled.	96	destroyed before the callback is called, the request will be cancelled.
98		97
99	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
100	(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
101	second argument.	100	(and trailers) as second argument.
102		101
103	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
104	headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason>	103	headers, the "pseudo-headers" (uppercase to avoid clashing with possible
		104	response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the
105	contain the three parts of the HTTP Status-Line of the same name. The	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>.
		109
106	pseudo-header C<URL> contains the original URL (which can differ from the	110	The pseudo-header C<URL> contains the actual URL (which can differ from
107	requested URL when following redirects).	111	the requested URL when following redirects - for example, you might get
		112	an error that your URL scheme is not supported even though your URL is a
		113	valid http URL because it redirected to an ftp URL, in which case you can
		114	look at the URL pseudo header).
		115
		116	The pseudo-header C<Redirect> only exists when the request was a result
		117	of an internal redirect. In that case it is an array reference with
		118	the C<($data, $headers)> from the redirect response. Note that this
		119	response could in turn be the result of a redirect itself, and C<<
		120	$headers->{Redirect}[1]{Redirect} >> will then contain the original
		121	response, and so on.
108		122
109	If the server sends a header multiple times, then their contents will be	123	If the server sends a header multiple times, then their contents will be
110	joined together with a comma (C<,>), as per the HTTP spec.	124	joined together with a comma (C<,>), as per the HTTP spec.
111		125
112	If an internal error occurs, such as not being able to resolve a hostname,	126	If an internal error occurs, such as not being able to resolve a hostname,
…		…
136	Whether to recurse requests or not, e.g. on redirects, authentication	150	Whether to recurse requests or not, e.g. on redirects, authentication
137	retries and so on, and how often to do so.	151	retries and so on, and how often to do so.
138		152
139	=item headers => hashref	153	=item headers => hashref
140		154
141	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
142	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
143	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:>
144	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
145	send at all).	159	they won't be sent at all).
146		160
147	=item timeout => $seconds	161	=item timeout => $seconds
148		162
149	The time-out to use for various stages - each connect attempt will reset	163	The time-out to use for various stages - each connect attempt will reset
150	the timeout, as will read or write activity. Default timeout is 5 minutes.	164	the timeout, as will read or write activity, i.e. this is not an overall
		165	timeout.
		166
		167	Default timeout is 5 minutes.
151		168
152	=item proxy => [$host, $port[, $scheme]] or undef	169	=item proxy => [$host, $port[, $scheme]] or undef
153		170
154	Use the given http proxy for all requests. If not specified, then the	171	Use the given http proxy for all requests. If not specified, then the
155	default proxy (as specified by C<$ENV{http_proxy}>) is used.	172	default proxy (as specified by C<$ENV{http_proxy}>) is used.
…		…
157	C<$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
158	HTTPS.	175	HTTPS.
159		176
160	=item body => $string	177	=item body => $string
161		178
162	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
163	this module might offer more options).	180	this module might offer more options).
164		181
165	=item cookie_jar => $hash_ref	182	=item cookie_jar => $hash_ref
166		183
167	Passing this parameter enables (simplified) cookie-processing, loosely	184	Passing this parameter enables (simplified) cookie-processing, loosely
…		…
175	Note that this cookie implementation is not of very high quality, nor	192	Note that this cookie implementation is not of very high quality, nor
176	meant to be complete. If you want complete cookie management you have to	193	meant to be complete. If you want complete cookie management you have to
177	do that on your own. C<cookie_jar> is meant as a quick fix to get some	194	do that on your own. C<cookie_jar> is meant as a quick fix to get some
178	cookie-using sites working. Cookies are a privacy disaster, do not use	195	cookie-using sites working. Cookies are a privacy disaster, do not use
179	them unless required to.	196	them unless required to.
		197
		198	When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:>
		199	headers will be ste and handled by this module, otherwise they will be
		200	left untouched.
180		201
181	=item tls_ctx => $scheme \| $tls_ctx	202	=item tls_ctx => $scheme \| $tls_ctx
182		203
183	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
184	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
…		…
188	verification) TLS context.	209	verification) TLS context.
189		210
190	The default for this option is C<low>, which could be interpreted as "give	211	The default for this option is C<low>, which could be interpreted as "give
191	me the page, no matter what".	212	me the page, no matter what".
192		213
		214	=item on_prepare => $callback->($fh)
		215
		216	In rare cases you need to "tune" the socket before it is used to
		217	connect (for exmaple, to bind it on a given IP address). This parameter
		218	overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect>
		219	and behaves exactly the same way (e.g. it has to provide a
		220	timeout). See the description for the C<$prepare_cb> argument of
		221	C<AnyEvent::Socket::tcp_connect> for details.
		222
		223	=item tcp_connect => $callback->($host, $service, $connect_cb, $prepare_cb)
		224
		225	In even rarer cases you want total control over how AnyEvent::HTTP
		226	establishes connections. Normally it uses L<AnyEvent::Socket::tcp_connect>
		227	to do this, but you can provide your own C<tcp_connect> function -
		228	obviously, it has to follow the same calling conventions, except that it
		229	may always return a connection guard object.
		230
		231	There are probably lots of weird uses for this function, starting from
		232	tracing the hosts C<http_request> actually tries to connect, to (inexact
		233	but fast) host => IP address caching or even socks protocol support.
		234
193	=item on_header => $callback->($headers)	235	=item on_header => $callback->($headers)
194		236
195	When specified, this callback will be called with the header hash as soon	237	When specified, this callback will be called with the header hash as soon
196	as headers have been successfully received from the remote server (not on	238	as headers have been successfully received from the remote server (not on
197	locally-generated errors).	239	locally-generated errors).
…		…
202		244
203	This callback is useful, among other things, to quickly reject unwanted	245	This callback is useful, among other things, to quickly reject unwanted
204	content, which, if it is supposed to be rare, can be faster than first	246	content, which, if it is supposed to be rare, can be faster than first
205	doing a C<HEAD> request.	247	doing a C<HEAD> request.
206		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
207	Example: cancel the request unless the content-type is "text/html".	253	Example: cancel the request unless the content-type is "text/html".
208		254
209	on_header => sub {	255	on_header => sub {
210	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/	256	$_[0]{"content-type"} =~ /^text\/html\s*(?:;\|$)/
211	},	257	},
…		…
217	string instead of the body data.	263	string instead of the body data.
218		264
219	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),
220	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
221	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.
222		271
223	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
224	(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
225	be extracted, or when the body should be processed incrementally.	274	be extracted, or when the body should be processed incrementally.
226		275
…		…
252	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
253	that doesn't solve your problem in a better way.	302	that doesn't solve your problem in a better way.
254		303
255	=back	304	=back
256		305
257	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.
258		308
259	http_request GET => "http://www.nethype.de/", sub {	309	http_request GET => "http://www.nethype.de/", sub {
260	my ($body, $hdr) = @_;	310	my ($body, $hdr) = @_;
261	print "$body\n";	311	print "$body\n";
262	};	312	};
263		313
264	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
265	timeout of 30 seconds.	315	timeout of 30 seconds.
266		316
267	http_request	317	http_request
268	GET => "https://www.google.com",	318	GET => "https://www.google.com",
269	timeout => 30,	319	timeout => 30,
…		…
272	use Data::Dumper;	322	use Data::Dumper;
273	print Dumper $hdr;	323	print Dumper $hdr;
274	}	324	}
275	;	325	;
276		326
277	Example: make another simple HTTP GET request, but immediately try to	327	Example: do another simple HTTP GET request, but immediately try to
278	cancel it.	328	cancel it.
279		329
280	my $request = http_request GET => "http://www.nethype.de/", sub {	330	my $request = http_request GET => "http://www.nethype.de/", sub {
281	my ($body, $hdr) = @_;	331	my ($body, $hdr) = @_;
282	print "$body\n";	332	print "$body\n";
…		…
314	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];	364	push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
315		365
316	_slot_schedule $_[0];	366	_slot_schedule $_[0];
317	}	367	}
318		368
319	our $qr_nl = qr{\015?\012};	369	# continue to parse $_ for headers and place them into the arg
		370	sub parse_hdr() {
		371	my %hdr;
		372
		373	# things seen, not parsed:
		374	# p3pP="NON CUR OTPi OUR NOR UNI"
		375
		376	$hdr{lc $1} .= ",$2"
		377	while /\G
		378	([^:\000-\037]*):
		379	[\011\040]*
		380	((?: [^\012]+ \| \012[\011\040] )*)
		381	\012
		382	/gxc;
		383
		384	/\G$/
		385	or return;
		386
		387	# remove the "," prefix we added to all headers above
		388	substr $_, 0, 1, ""
		389	for values %hdr;
		390
		391	\%hdr
		392	}
		393
320	our $qr_nlnl = qr{(?<![^\012])\015?\012};	394	our $qr_nlnl = qr{(?<![^\012])\015?\012};
321		395
322	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };	396	our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
323	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };	397	our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
324		398
…		…
337	while (my ($k, $v) = each %$hdr) {	411	while (my ($k, $v) = each %$hdr) {
338	$hdr{lc $k} = $v;	412	$hdr{lc $k} = $v;
339	}	413	}
340	}	414	}
341		415
		416	# pseudo headers for all subsequent responses
		417	my @pseudo = (URL => $url);
		418	push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect};
		419
342	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;	420	my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
343		421
344	return $cb->(undef, { Status => 599, Reason => "Too many redirections", URL => $url })	422	return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" })
345	if $recurse < 0;	423	if $recurse < 0;
346		424
347	my $proxy = $arg{proxy} \|\| $PROXY;	425	my $proxy = $arg{proxy} \|\| $PROXY;
348	my $timeout = $arg{timeout} \|\| $TIMEOUT;	426	my $timeout = $arg{timeout} \|\| $TIMEOUT;
349		427
350	my ($uscheme, $uauthority, $upath, $query, $fragment) =	428	my ($uscheme, $uauthority, $upath, $query, $fragment) =
351	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:\?([^#]))?(?:#(.))?\|;	429	$url =~ m\|(?:([^:/?#]+):)?(?://([^/?#]))?([^?#])(?:(\?[^#]))?(?:#(.))?\|;
352		430
353	$uscheme = lc $uscheme;	431	$uscheme = lc $uscheme;
354		432
355	my $uport = $uscheme eq "http" ? 80	433	my $uport = $uscheme eq "http" ? 80
356	: $uscheme eq "https" ? 443	434	: $uscheme eq "https" ? 443
357	: return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", URL => $url });	435	: return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" });
358		436
359	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x	437	$uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
360	or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", URL => $url });	438	or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" });
361		439
362	my $uhost = $1;	440	my $uhost = $1;
363	$uport = $2 if defined $2;	441	$uport = $2 if defined $2;
364		442
365	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost";	443	$hdr{host} = defined $2 ? "$uhost:$2" : "$uhost"
		444	unless exists $hdr{host};
366		445
367	$uhost =~ s/^\[(.*)\]$/$1/;	446	$uhost =~ s/^\[(.*)\]$/$1/;
368	$upath .= "?$query" if length $query;	447	$upath .= $query if length $query;
369		448
370	$upath =~ s%^/?%/%;	449	$upath =~ s%^/?%/%;
371		450
372	# cookie processing	451	# cookie processing
373	if (my $jar = $arg{cookie_jar}) {	452	if (my $jar = $arg{cookie_jar}) {
…		…
413	} else {	492	} else {
414	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);	493	($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
415	}	494	}
416		495
417	# leave out fragment and query string, just a heuristic	496	# leave out fragment and query string, just a heuristic
418	$hdr{referer} \|\|= "$uscheme://$uauthority$upath" unless exists $hdr{referer};	497	$hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer};
419	$hdr{"user-agent"} \|\|= $USERAGENT unless exists $hdr{"user-agent"};	498	$hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"};
420		499
421	$hdr{"content-length"} = length $arg{body};	500	$hdr{"content-length"} = length $arg{body}
		501	if length $arg{body} \|\| $method ne "GET";
		502
		503	$hdr{connection} = "close TE"; #1.1
		504	$hdr{te} = "trailers" unless exists $hdr{te}; #1.1
422		505
423	my %state = (connect_guard => 1);	506	my %state = (connect_guard => 1);
424		507
425	_get_slot $uhost, sub {	508	_get_slot $uhost, sub {
426	$state{slot_guard} = shift;	509	$state{slot_guard} = shift;
427		510
428	return unless $state{connect_guard};	511	return unless $state{connect_guard};
429		512
430	$state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {	513	my $connect_cb = sub {
431	$state{fh} = shift	514	$state{fh} = shift
432	or do {	515	or do {
433	my $err = "$!";	516	my $err = "$!";
434	%state = ();	517	%state = ();
435	return $cb->(undef, { Status => 599, Reason => $err, URL => $url });	518	return $cb->(undef, { @pseudo, Status => 599, Reason => $err });
436	};	519	};
437		520
438	pop; # free memory, save a tree	521	pop; # free memory, save a tree
439		522
440	return unless delete $state{connect_guard};	523	return unless delete $state{connect_guard};
441		524
442	# get handle	525	# get handle
443	$state{handle} = new AnyEvent::Handle	526	$state{handle} = new AnyEvent::Handle
444	fh => $state{fh},	527	fh => $state{fh},
		528	peername => $rhost,
		529	tls_ctx => $arg{tls_ctx},
		530	# these need to be reconfigured on keepalive handles
445	timeout => $timeout,	531	timeout => $timeout,
446	peername => $rhost,	532	on_error => sub {
447	tls_ctx => $arg{tls_ctx};	533	%state = ();
		534	$cb->(undef, { @pseudo, Status => 599, Reason => $_[2] });
		535	},
		536	on_eof => sub {
		537	%state = ();
		538	$cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" });
		539	},
		540	;
448		541
449	# limit the number of persistent connections	542	# limit the number of persistent connections
450	# keepalive not yet supported	543	# keepalive not yet supported
451	if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {	544	# if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
452	++$KA_COUNT{$_[1]};	545	# ++$KA_COUNT{$_[1]};
453	$state{handle}{ka_count_guard} = AnyEvent::Util::guard {	546	# $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
454	--$KA_COUNT{$_[1]}	547	# --$KA_COUNT{$_[1]}
455	};	548	# };
456	$hdr{connection} = "keep-alive";	549	# $hdr{connection} = "keep-alive";
457	} else {
458	delete $hdr{connection};
459	}	550	# }
460
461	# (re-)configure handle
462	$state{handle}->on_error (sub {
463	%state = ();
464	$cb->(undef, { Status => 599, Reason => $_[2], URL => $url });
465	});
466	$state{handle}->on_eof (sub {
467	%state = ();
468	$cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", URL => $url });
469	});
470		551
471	$state{handle}->starttls ("connect") if $rscheme eq "https";	552	$state{handle}->starttls ("connect") if $rscheme eq "https";
472		553
473	# handle actual, non-tunneled, request	554	# handle actual, non-tunneled, request
474	my $handle_actual_request = sub {	555	my $handle_actual_request = sub {
475	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};	556	$state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
476		557
477	# send request	558	# send request
478	$state{handle}->push_write (	559	$state{handle}->push_write (
479	"$method $rpath HTTP/1.0\015\012"	560	"$method $rpath HTTP/1.1\015\012"
480	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)	561	. (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr)
481	. "\015\012"	562	. "\015\012"
482	. (delete $arg{body})	563	. (delete $arg{body})
483	);	564	);
484		565
		566	# return if error occured during push_write()
		567	return unless %state;
		568
485	%hdr = (); # reduce memory usage, save a kitten	569	%hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use
486		570
487	# status line	571	# status line and headers
488	$state{handle}->push_read (line => $qr_nl, sub {	572	$state{read_response} = sub {
489	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
490	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", URL => $url }));
491
492	my %hdr = ( # response headers
493	HTTPVersion => ",$1",
494	Status => ",$2",
495	Reason => ",$3",
496	URL => ",$url"
497	);
498
499	# headers, could be optimized a bit
500	$state{handle}->unshift_read (line => $qr_nlnl, sub {
501	for ("$_[1]") {	573	for ("$_[1]") {
502	y/\015//d; # weed out any \015, as they show up in the weirdest of places.	574	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
503		575
504	# things seen, not parsed:	576	/^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc
505	# p3pP="NON CUR OTPi OUR NOR UNI"	577	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" }));
506		578
507	$hdr{lc $1} .= ",$2"	579	# 100 Continue handling
508	while /\G	580	# should not happen as we don't send expect: 100-continue,
509	([^:\000-\037]*):	581	# but we handle it just in case.
510	[\011\040]*	582	# since we send the request body regardless, if we get an error
511	((?: [^\012]+ \| \012[\011\040] )*)	583	# we are out of-sync, which we currently do NOT handle correctly.
512	\012	584	return $state{handle}->push_read (line => $qr_nlnl, $state{read_response})
513	/gxc;	585	if $2 eq 100;
514		586
		587	push @pseudo,
		588	HTTPVersion => $1,
		589	Status => $2,
		590	Reason => $3,
515	/\G$/	591	;
		592
		593	my $hdr = parse_hdr
516	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", URL => $url }));	594	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" }));
		595
		596	%hdr = (%$hdr, @pseudo);
		597	}
		598
		599	# redirect handling
		600	# microsoft and other shitheads don't give a shit for following standards,
		601	# try to support some common forms of broken Location headers.
		602	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
		603	$hdr{location} =~ s/^\.\/+//;
		604
		605	my $url = "$rscheme://$uhost:$uport";
		606
		607	unless ($hdr{location} =~ s/^\///) {
		608	$url .= $upath;
		609	$url =~ s/\/[^\/]*$//;
517	}	610	}
518		611
519	substr $_, 0, 1, ""
520	for values %hdr;
521
522	# redirect handling
523	# microsoft and other shitheads don't give a shit for following standards,
524	# try to support some common forms of broken Location headers.
525	if ($hdr{location} !~ /^(?: $ \| [^:\/?\#]+ : )/x) {
526	$hdr{location} =~ s/^\.\/+//;
527
528	my $url = "$rscheme://$uhost:$uport";
529
530	unless ($hdr{location} =~ s/^\///) {
531	$url .= $upath;
532	$url =~ s/\/[^\/]*$//;
533	}
534
535	$hdr{location} = "$url/$hdr{location}";	612	$hdr{location} = "$url/$hdr{location}";
		613	}
		614
		615	my $redirect;
		616
		617	if ($recurse) {
		618	my $status = $hdr{Status};
		619
		620	# industry standard is to redirect POST as GET for
		621	# 301, 302 and 303, in contrast to http/1.0 and 1.1.
		622	# also, the UA should ask the user for 301 and 307 and POST,
		623	# industry standard seems to be to simply follow.
		624	# we go with the industry standard.
		625	if ($status == 301 or $status == 302 or $status == 303) {
		626	# HTTP/1.1 is unclear on how to mutate the method
		627	$method = "GET" unless $method eq "HEAD";
		628	$redirect = 1;
		629	} elsif ($status == 307) {
		630	$redirect = 1;
536	}	631	}
		632	}
537		633
		634	my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive])
538	my $redirect;	635	my $keepalive = pop;
539		636
		637	$state{handle}->destroy if $state{handle};
		638	%state = ();
		639
		640	if (defined $_[1]) {
		641	$hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1];
		642	$hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2];
		643	}
		644
		645	# set-cookie processing
540	if ($recurse) {	646	if ($arg{cookie_jar}) {
541	if ($hdr{Status} =~ /^30[12]$/ && $method ne "POST") {	647	for ($hdr{"set-cookie"}) {
542	# apparently, mozilla et al. just change POST to GET here	648	# parse NAME=VALUE
543	# more research is needed before we do the same	649	my @kv;
		650
		651	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
544	$redirect = 1;	652	my $name = $1;
545	} elsif ($hdr{Status} == 303) {	653	my $value = $3;
546	# even http/1.1 is unclear on how to mutate the method	654
547	$method = "GET" unless $method eq "HEAD";	655	unless ($value) {
		656	$value = $2;
		657	$value =~ s/\\(.)/$1/gs;
		658	}
		659
		660	push @kv, $name => $value;
		661
		662	last unless /\G\s*;/gc;
		663	}
		664
		665	last unless @kv;
		666
		667	my $name = shift @kv;
		668	my %kv = (value => shift @kv, @kv);
		669
		670	my $cdom;
		671	my $cpath = (delete $kv{path}) \|\| "/";
		672
		673	if (exists $kv{domain}) {
		674	$cdom = delete $kv{domain};
		675
		676	$cdom =~ s/^\.?/./; # make sure it starts with a "."
		677
		678	next if $cdom =~ /\.$/;
		679
		680	# this is not rfc-like and not netscape-like. go figure.
		681	my $ndots = $cdom =~ y/.//;
		682	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
		683	} else {
		684	$cdom = $uhost;
		685	}
		686
548	$redirect = 1;	687	# store it
549	} elsif ($hdr{Status} == 307 && $method =~ /^(?:GET\|HEAD)$/) {	688	$arg{cookie_jar}{version} = 1;
550	$redirect = 1;	689	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
		690
		691	redo if /\G\s*,/gc;
551	}	692	}
552	}	693	}
553		694
554	my $finish = sub {
555	$state{handle}->destroy if $state{handle};
556	%state = ();
557
558	# set-cookie processing
559	if ($arg{cookie_jar}) {
560	for ($_[1]{"set-cookie"}) {
561	# parse NAME=VALUE
562	my @kv;
563
564	while (/\G\s* ([^=;,[:space:]]+) \s=\s (?: "((?:[^\\"]+\|\\.))" \| ([^=;,[:space:]]) )/gcxs) {
565	my $name = $1;
566	my $value = $3;
567
568	unless ($value) {
569	$value = $2;
570	$value =~ s/\\(.)/$1/gs;
571	}
572
573	push @kv, $name => $value;
574
575	last unless /\G\s*;/gc;
576	}
577
578	last unless @kv;
579
580	my $name = shift @kv;
581	my %kv = (value => shift @kv, @kv);
582
583	my $cdom;
584	my $cpath = (delete $kv{path}) \|\| "/";
585
586	if (exists $kv{domain}) {
587	$cdom = delete $kv{domain};
588
589	$cdom =~ s/^\.?/./; # make sure it starts with a "."
590
591	next if $cdom =~ /\.$/;
592
593	# this is not rfc-like and not netscape-like. go figure.
594	my $ndots = $cdom =~ y/.//;
595	next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
596	} else {
597	$cdom = $uhost;
598	}
599
600	# store it
601	$arg{cookie_jar}{version} = 1;
602	$arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
603
604	redo if /\G\s*,/gc;
605	}
606	}
607
608	if ($redirect && exists $hdr{location}) {	695	if ($redirect && exists $hdr{location}) {
609	# we ignore any errors, as it is very common to receive	696	# we ignore any errors, as it is very common to receive
610	# Content-Length != 0 but no actual body	697	# Content-Length != 0 but no actual body
611	# we also access %hdr, as $_[1] might be an erro	698	# we also access %hdr, as $_[1] might be an erro
612	http_request ($method => $hdr{location}, %arg, recurse => $recurse - 1, $cb);	699	http_request (
613	} else {	700	$method => $hdr{location},
614	$cb->($_[0], $_[1]);
615	}	701	%arg,
		702	recurse => $recurse - 1,
		703	Redirect => [$_[0], \%hdr],
616	};	704	$cb);
617
618	my $len = $hdr{"content-length"};
619
620	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
621	$finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", URL => $url });
622	} elsif (
623	$hdr{Status} =~ /^(?:1..\|[23]04)$/
624	or $method eq "HEAD"
625	or (defined $len && !$len)
626	) {
627	# no body
628	$finish->("", \%hdr);
629	} else {	705	} else {
		706	$cb->($_[0], \%hdr);
		707	}
		708	};
		709
		710	my $len = $hdr{"content-length"};
		711
		712	if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
		713	$finish->(undef, 598 => "Request cancelled by on_header");
		714	} elsif (
		715	$hdr{Status} =~ /^(?:1..\|204\|205\|304)$/
		716	or $method eq "HEAD"
		717	or (defined $len && !$len)
		718	) {
		719	# no body
		720	$finish->("", undef, undef, 1);
		721	} else {
630	# body handling, four different code paths	722	# body handling, many different code paths
631	# for want_body_handle, on_body (2x), normal (2x)	723	# - no body expected
632	# we might read too much here, but it does not matter yet (no pers. connections)	724	# - want_body_handle
		725	# - te chunked
		726	# - 2x length known (with or without on_body)
		727	# - 2x length not known (with or without on_body)
633	if (!$redirect && $arg{want_body_handle}) {	728	if (!$redirect && $arg{want_body_handle}) {
634	$_[0]->on_eof (undef);	729	$_[0]->on_eof (undef);
635	$_[0]->on_error (undef);	730	$_[0]->on_error (undef);
636	$_[0]->on_read (undef);	731	$_[0]->on_read (undef);
637		732
638	$finish->(delete $state{handle}, \%hdr);	733	$finish->(delete $state{handle});
639		734
640	} elsif ($arg{on_body}) {	735	} elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) {
		736	my $cl = 0;
		737	my $body = undef;
		738	my $on_body = $arg{on_body} \|\| sub { $body .= shift; 1 };
		739
641	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });	740	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		741
		742	my $read_chunk; $read_chunk = sub {
		743	$_[1] =~ /^([0-9a-fA-F]+)/
		744	or $finish->(undef, 599 => "Garbled chunked transfer encoding");
		745
		746	my $len = hex $1;
		747
642	if ($len) {	748	if ($len) {
643	$_[0]->on_eof (undef);	749	$cl += $len;
		750
		751	$_[0]->push_read (chunk => $len, sub {
		752	$on_body->($_[1], \%hdr)
		753	or return $finish->(undef, 598 => "Request cancelled by on_body");
		754
644	$_[0]->on_read (sub {	755	$_[0]->push_read (line => sub {
645	$len -= length $_[0]{rbuf};	756	length $_[1]
646		757	and return $finish->(undef, 599 => "Garbled chunked transfer encoding");
647	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	758	$_[0]->push_read (line => $read_chunk);
648	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
649
650	$len > 0	759	});
651	or $finish->("", \%hdr);
652	});	760	});
653	} else {	761	} else {
654	$_[0]->on_eof (sub {	762	$hdr{"content-length"} \|\|= $cl;
655	$finish->("", \%hdr);	763
		764	$_[0]->push_read (line => $qr_nlnl, sub {
		765	if (length $_[1]) {
		766	for ("$_[1]") {
		767	y/\015//d; # weed out any \015, as they show up in the weirdest of places.
		768
		769	my $hdr = parse_hdr
		770	or return $finish->(undef, 599 => "Garbled response trailers");
		771
		772	%hdr = (%hdr, %$hdr);
		773	}
656	});	774	}
657	$_[0]->on_read (sub {	775
658	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)	776	$finish->($body, undef, undef, 1);
659	or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
660	});	777	});
661	}	778	}
		779	};
		780
		781	$_[0]->push_read (line => $read_chunk);
		782
		783	} elsif ($arg{on_body}) {
		784	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		785
		786	if ($len) {
		787	$_[0]->on_read (sub {
		788	$len -= length $_[0]{rbuf};
		789
		790	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		791	or return $finish->(undef, 598 => "Request cancelled by on_body");
		792
		793	$len > 0
		794	or $finish->("", undef, undef, 1);
		795	});
662	} else {	796	} else {
663	$_[0]->on_eof (undef);	797	$_[0]->on_eof (sub {
664		798	$finish->("");
665	if ($len) {	799	});
666	$_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
667	$_[0]->on_read (sub {	800	$_[0]->on_read (sub {
		801	$arg{on_body}(delete $_[0]{rbuf}, \%hdr)
		802	or $finish->(undef, 598 => "Request cancelled by on_body");
		803	});
		804	}
		805	} else {
		806	$_[0]->on_eof (undef);
		807
		808	if ($len) {
		809	$_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) });
		810	$_[0]->on_read (sub {
668	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)	811	$finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1)
669	if $len <= length $_[0]{rbuf};	812	if $len <= length $_[0]{rbuf};
670	});	813	});
671	} else {	814	} else {
672	$_[0]->on_error (sub {	815	$_[0]->on_error (sub {
673	$! == Errno::EPIPE \|\| !$!	816	($! == Errno::EPIPE \|\| !$!)
674	? $finish->(delete $_[0]{rbuf}, \%hdr)	817	? $finish->(delete $_[0]{rbuf})
675	: $finish->(undef, { Status => 599, Reason => $_[2], URL => $url });	818	: $finish->(undef, 599 => $_[2]);
676	});	819	});
677	$_[0]->on_read (sub { });	820	$_[0]->on_read (sub { });
678	}
679	}	821	}
680	}	822	}
681	});	823	}
682	});	824	};
		825
		826	$state{handle}->push_read (line => $qr_nlnl, $state{read_response});
683	};	827	};
684		828
685	# now handle proxy-CONNECT method	829	# now handle proxy-CONNECT method
686	if ($proxy && $uscheme eq "https") {	830	if ($proxy && $uscheme eq "https") {
687	# oh dear, we have to wrap it into a connect request	831	# oh dear, we have to wrap it into a connect request
688		832
689	# maybe re-use $uauthority with patched port?	833	# maybe re-use $uauthority with patched port?
690	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");	834	$state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
691	$state{handle}->push_read (line => $qr_nlnl, sub {	835	$state{handle}->push_read (line => $qr_nlnl, sub {
692	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix	836	$_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
693	or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", URL => $url }));	837	or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" }));
694		838
695	if ($2 == 200) {	839	if ($2 == 200) {
696	$rpath = $upath;	840	$rpath = $upath;
697	&$handle_actual_request;	841	&$handle_actual_request;
698	} else {	842	} else {
699	%state = ();	843	%state = ();
700	$cb->(undef, { Status => $2, Reason => $3, URL => $url });	844	$cb->(undef, { @pseudo, Status => $2, Reason => $3 });
701	}	845	}
702	});	846	});
703	} else {	847	} else {
704	&$handle_actual_request;	848	&$handle_actual_request;
705	}	849	}
706
707	}, sub {
708	$timeout
709	};	850	};
		851
		852	my $tcp_connect = $arg{tcp_connect}
		853	\|\| do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect };
		854
		855	$state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} \|\| sub { $timeout });
		856
710	};	857	};
711		858
712	defined wantarray && AnyEvent::Util::guard { %state = () }	859	defined wantarray && AnyEvent::Util::guard { %state = () }
713	}	860	}
714		861
…		…
728	&http_request	875	&http_request
729	}	876	}
730		877
731	=back	878	=back
732		879
		880	=head2 DNS CACHING
		881
		882	AnyEvent::HTTP uses the AnyEvent::Socket::tcp_connect function for
		883	the actual connection, which in turn uses AnyEvent::DNS to resolve
		884	hostnames. The latter is a simple stub resolver and does no caching
		885	on its own. If you want DNS caching, you currently have to provide
		886	your own default resolver (by storing a suitable resolver object in
		887	C<$AnyEvent::DNS::RESOLVER>).
		888
733	=head2 GLOBAL FUNCTIONS AND VARIABLES	889	=head2 GLOBAL FUNCTIONS AND VARIABLES
734		890
735	=over 4	891	=over 4
736		892
737	=item AnyEvent::HTTP::set_proxy "proxy-url"	893	=item AnyEvent::HTTP::set_proxy "proxy-url"
738		894
739	Sets the default proxy server to use. The proxy-url must begin with a	895	Sets the default proxy server to use. The proxy-url must begin with a
740	string of the form C<http://host:port> (optionally C<https:...>).	896	string of the form C<http://host:port> (optionally C<https:...>), croaks
		897	otherwise.
		898
		899	To clear an already-set proxy, use C<undef>.
		900
		901	=item $date = AnyEvent::HTTP::format_date $timestamp
		902
		903	Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP
		904	Date (RFC 2616).
		905
		906	=item $timestamp = AnyEvent::HTTP::parse_date $date
		907
		908	Takes a HTTP Date (RFC 2616) and returns the corresponding POSIX
		909	timestamp, or C<undef> if the date cannot be parsed.
741		910
742	=item $AnyEvent::HTTP::MAX_RECURSE	911	=item $AnyEvent::HTTP::MAX_RECURSE
743		912
744	The default value for the C<recurse> request parameter (default: C<10>).	913	The default value for the C<recurse> request parameter (default: C<10>).
745		914
…		…
765		934
766	=back	935	=back
767		936
768	=cut	937	=cut
769		938
		939	our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
		940	our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat);
		941
		942	sub format_date($) {
		943	my ($time) = @_;
		944
		945	# RFC 822/1123 format
		946	my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time;
		947
		948	sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT",
		949	$weekday[$wday], $mday, $month[$mon], $year + 1900,
		950	$H, $M, $S;
		951	}
		952
		953	sub parse_date($) {
		954	my ($date) = @_;
		955
		956	my ($d, $m, $y, $H, $M, $S);
		957
		958	if ($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$/) {
		959	# RFC 822/1123, required by RFC 2616
		960	($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6);
		961
		962	} elsif ($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$/) {
		963	# RFC 850
		964	($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6);
		965
		966	} elsif ($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])$/) {
		967	# ISO C's asctime
		968	($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5);
		969	}
		970	# other formats fail in the loop below
		971
		972	for (0..11) {
		973	if ($m eq $month[$_]) {
		974	require Time::Local;
		975	return Time::Local::timegm ($S, $M, $H, $d, $_, $y);
		976	}
		977	}
		978
		979	undef
		980	}
		981
770	sub set_proxy($) {	982	sub set_proxy($) {
		983	if (length $_[0]) {
771	$PROXY = [$2, $3 \|\| 3128, $1] if $_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix;	984	$_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix
		985	or Carp::croak "$_[0]: invalid proxy URL";
		986	$PROXY = [$2, $3 \|\| 3128, $1]
		987	} else {
		988	undef $PROXY;
		989	}
772	}	990	}
773		991
774	# initialise proxy from environment	992	# initialise proxy from environment
		993	eval {
775	set_proxy $ENV{http_proxy};	994	set_proxy $ENV{http_proxy};
		995	};
		996
		997	=head2 SOCKS PROXIES
		998
		999	Socks proxies are not directly supported by AnyEvent::HTTP. You can
		1000	compile your perl to support socks, or use an external program such as
		1001	F<socksify> (dante) or F<tsocks> to make your program use a socks proxy
		1002	transparently.
		1003
		1004	Alternatively, for AnyEvent::HTTP only, you can use your own
		1005	C<tcp_connect> function that does the proxy handshake - here is an example
		1006	that works with socks4a proxies:
		1007
		1008	use Errno;
		1009	use AnyEvent::Util;
		1010	use AnyEvent::Socket;
		1011	use AnyEvent::Handle;
		1012
		1013	# host, port and username of/for your socks4a proxy
		1014	my $socks_host = "10.0.0.23";
		1015	my $socks_port = 9050;
		1016	my $socks_user = "";
		1017
		1018	sub socks4a_connect {
		1019	my ($host, $port, $connect_cb, $prepare_cb) = @_;
		1020
		1021	my $hdl = new AnyEvent::Handle
		1022	connect => [$socks_host, $socks_port],
		1023	on_prepare => sub { $prepare_cb->($_[0]{fh}) },
		1024	on_error => sub { $connect_cb->() },
		1025	;
		1026
		1027	$hdl->push_write (pack "CCnNZZ", 4, 1, $port, 1, $socks_user, $host);
		1028
		1029	$hdl->push_read (chunk => 8, sub {
		1030	my ($hdl, $chunk) = @_;
		1031	my ($status, $port, $ipn) = unpack "xCna4", $chunk;
		1032
		1033	if ($status == 0x5a) {
		1034	$connect_cb->($hdl->{fh}, (format_address $ipn) . ":$port");
		1035	} else {
		1036	$! = Errno::ENXIO; $connect_cb->();
		1037	}
		1038	});
		1039
		1040	$hdl
		1041	}
		1042
		1043	Use C<socks4a_connect> instead of C<tcp_connect> when doing C<http_request>s,
		1044	possibly after switching off other proxy types:
		1045
		1046	AnyEvent::HTTP::set_proxy undef; # usually you do not want other proxies
		1047
		1048	http_get 'http://www.google.com', tcp_connect => \&socks4a_connect, sub {
		1049	my ($data, $headers) = @_;
		1050	...
		1051	};
776		1052
777	=head1 SEE ALSO	1053	=head1 SEE ALSO
778		1054
779	L<AnyEvent>.	1055	L<AnyEvent>.
780		1056

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Comparing AnyEvent-HTTP/HTTP.pm (file contents): Revision 1.48 by root, Wed Aug 5 16:09:10 2009 UTC vs. Revision 1.69 by root, Fri Dec 31 19:32:47 2010 UTC

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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.48 by root, Wed Aug 5 16:09:10 2009 UTC vs.
Revision 1.69 by root, Fri Dec 31 19:32:47 2010 UTC