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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.30 by root, Thu Oct 23 02:46:20 2008 UTC vs.
Revision 1.42 by root, Mon Jul 6 00:08:16 2009 UTC

… …
39package AnyEvent::HTTP; 39package AnyEvent::HTTP;
40 40
41use strict; 41use strict;
42no warnings; 42no warnings;
43 43
44use Carp; 44use Errno ();
45 45
46use AnyEvent (); 46use AnyEvent 4.452 ();
47use AnyEvent::Util (); 47use AnyEvent::Util ();
48use AnyEvent::Socket (); 48use AnyEvent::Socket ();
49use AnyEvent::Handle (); 49use AnyEvent::Handle ();
50 50
51use base Exporter::; 51use base Exporter::;
52 52
53our $VERSION = '1.05'; 53our $VERSION = '1.12';
54 54
55our @EXPORT = qw(http_get http_post http_head http_request); 55our @EXPORT = qw(http_get http_post http_head http_request);
56 56
57our $USERAGENT = "Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)"; 57our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";
58our $MAX_RECURSE = 10; 58our $MAX_RECURSE = 10;
59our $MAX_PERSISTENT = 8; 59our $MAX_PERSISTENT = 8;
60our $PERSISTENT_TIMEOUT = 2; 60our $PERSISTENT_TIMEOUT = 2;
61our $TIMEOUT = 300; 61our $TIMEOUT = 300;
62 62
… …
94When called in void context, nothing is returned. In other contexts, 94When called in void context, nothing is returned. In other contexts,
95C<http_request> returns a "cancellation guard" - you have to keep the 95C<http_request> returns a "cancellation guard" - you have to keep the
96object at least alive until the callback get called. If the object gets 96object at least alive until the callback get called. If the object gets
97destroyed before the callbakc is called, the request will be cancelled. 97destroyed before the callbakc is called, the request will be cancelled.
98 98
99The callback will be called with the response data as first argument 99The callback will be called with the response body data as first argument
100(or C<undef> if it wasn't available due to errors), and a hash-ref with 100(or C<undef> if an error occured), and a hash-ref with response headers as
101response headers as second argument. 101second argument.
102 102
103All the headers in that hash are lowercased. In addition to the response 103All the headers in that hash are lowercased. In addition to the response
104headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason> 104headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason>
105contain the three parts of the HTTP Status-Line of the same name. The 105contain the three parts of the HTTP Status-Line of the same name. The
106pseudo-header C<URL> contains the original URL (which can differ from the 106pseudo-header C<URL> contains the original URL (which can differ from the
107requested URL when following redirects). 107requested URL when following redirects).
108 108
109If the server sends a header multiple lines, then their contents will be 109If the server sends a header multiple times, then their contents will be
110joined together with C<\x00>. 110joined together with a comma (C<,>), as per the HTTP spec.
111 111
112If an internal error occurs, such as not being able to resolve a hostname, 112If an internal error occurs, such as not being able to resolve a hostname,
113then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<599> 113then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<59x>
114and the C<Reason> pseudo-header will contain an error message. 114(usually C<599>) and the C<Reason> pseudo-header will contain an error
115message.
115 116
116A typical callback might look like this: 117A typical callback might look like this:
117 118
118 sub { 119 sub {
119 my ($body, $hdr) = @_; 120 my ($body, $hdr) = @_;
… …
165based on the original netscape specification. 166based on the original netscape specification.
166 167
167The C<$hash_ref> must be an (initially empty) hash reference which will 168The C<$hash_ref> must be an (initially empty) hash reference which will
168get updated automatically. It is possible to save the cookie_jar to 169get updated automatically. It is possible to save the cookie_jar to
169persistent storage with something like JSON or Storable, but this is not 170persistent storage with something like JSON or Storable, but this is not
170recommended, as expire times are currently being ignored. 171recommended, as expiry times are currently being ignored.
171 172
172Note that this cookie implementation is not of very high quality, nor 173Note that this cookie implementation is not of very high quality, nor
173meant to be complete. If you want complete cookie management you have to 174meant to be complete. If you want complete cookie management you have to
174do that on your own. C<cookie_jar> is meant as a quick fix to get some 175do that on your own. C<cookie_jar> is meant as a quick fix to get some
175cookie-using sites working. Cookies are a privacy disaster, do not use 176cookie-using sites working. Cookies are a privacy disaster, do not use
176them unless required to. 177them unless required to.
178
179=item tls_ctx => $scheme | $tls_ctx
180
181Specifies the AnyEvent::TLS context to be used for https connections. This
182parameter follows the same rules as the C<tls_ctx> parameter to
183L<AnyEvent::Handle>, but additionally, the two strings C<low> or
184C<high> can be specified, which give you a predefined low-security (no
185verification, highest compatibility) and high-security (CA and common-name
186verification) TLS context.
187
188The default for this option is C<low>, which could be interpreted as "give
189me the page, no matter what".
190
191=item on_header => $callback->($headers)
192
193When specified, this callback will be called with the header hash as soon
194as headers have been successfully received from the remote server (not on
195locally-generated errors).
196
197It has to return either true (in which case AnyEvent::HTTP will continue),
198or false, in which case AnyEvent::HTTP will cancel the download (and call
199the finish callback with an error code of C<598>).
200
201This callback is useful, among other things, to quickly reject unwanted
202content, which, if it is supposed to be rare, can be faster than first
203doing a C<HEAD> request.
204
205Example: cancel the request unless the content-type is "text/html".
206
207 on_header => sub {
208 $_[0]{"content-type"} =~ /^text\/html\s*(?:;|$)/
209 },
210
211=item on_body => $callback->($partial_body, $headers)
212
213When specified, all body data will be passed to this callback instead of
214to the completion callback. The completion callback will get the empty
215string instead of the body data.
216
217It has to return either true (in which case AnyEvent::HTTP will continue),
218or false, in which case AnyEvent::HTTP will cancel the download (and call
219the completion callback with an error code of C<598>).
220
221This callback is useful when the data is too large to be held in memory
222(so the callback writes it to a file) or when only some information should
223be extracted, or when the body should be processed incrementally.
224
225It is usually preferred over doing your own body handling via
226C<want_body_handle>.
227
228=item want_body_handle => $enable
229
230When enabled (default is disabled), the behaviour of AnyEvent::HTTP
231changes considerably: after parsing the headers, and instead of
232downloading the body (if any), the completion callback will be
233called. Instead of the C<$body> argument containing the body data, the
234callback will receive the L<AnyEvent::Handle> object associated with the
235connection. In error cases, C<undef> will be passed. When there is no body
236(e.g. status C<304>), the empty string will be passed.
237
238The handle object might or might not be in TLS mode, might be connected to
239a proxy, be a persistent connection etc., and configured in unspecified
240ways. The user is responsible for this handle (it will not be used by this
241module anymore).
242
243This is useful with some push-type services, where, after the initial
244headers, an interactive protocol is used (typical example would be the
245push-style twitter API which starts a JSON/XML stream).
246
247If you think you need this, first have a look at C<on_body>, to see if
248that doesn'T solve your problem in a better way.
177 249
178=back 250=back
179 251
180Example: make a simple HTTP GET request for http://www.nethype.de/ 252Example: make a simple HTTP GET request for http://www.nethype.de/
181 253
… …
237 push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; 309 push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
238 310
239 _slot_schedule $_[0]; 311 _slot_schedule $_[0];
240} 312}
241 313
314our $qr_nl = qr<\015?\012>;
315our $qr_nlnl = qr<\015?\012\015?\012>;
316
317our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
318our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
319
242sub http_request($$@) { 320sub http_request($$@) {
243 my $cb = pop; 321 my $cb = pop;
244 my ($method, $url, %arg) = @_; 322 my ($method, $url, %arg) = @_;
245 323
246 my %hdr; 324 my %hdr;
325
326 $arg{tls_ctx} = $TLS_CTX_LOW if $arg{tls_ctx} eq "low" || !exists $arg{tls_ctx};
327 $arg{tls_ctx} = $TLS_CTX_HIGH if $arg{tls_ctx} eq "high";
247 328
248 $method = uc $method; 329 $method = uc $method;
249 330
250 if (my $hdr = $arg{headers}) { 331 if (my $hdr = $arg{headers}) {
251 while (my ($k, $v) = each %$hdr) { 332 while (my ($k, $v) = each %$hdr) {
… …
253 } 334 }
254 } 335 }
255 336
256 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE; 337 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
257 338
258 return $cb->(undef, { Status => 599, Reason => "recursion limit reached", URL => $url }) 339 return $cb->(undef, { Status => 599, Reason => "Too many redirections", URL => $url })
259 if $recurse < 0; 340 if $recurse < 0;
260 341
261 my $proxy = $arg{proxy} || $PROXY; 342 my $proxy = $arg{proxy} || $PROXY;
262 my $timeout = $arg{timeout} || $TIMEOUT; 343 my $timeout = $arg{timeout} || $TIMEOUT;
263 344
264 $hdr{"user-agent"} ||= $USERAGENT;
265
266 my ($scheme, $authority, $upath, $query, $fragment) = 345 my ($uscheme, $uauthority, $upath, $query, $fragment) =
267 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|; 346 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|;
268 347
269 $scheme = lc $scheme; 348 $uscheme = lc $uscheme;
270 349
271 my $uport = $scheme eq "http" ? 80 350 my $uport = $uscheme eq "http" ? 80
272 : $scheme eq "https" ? 443 351 : $uscheme eq "https" ? 443
273 : return $cb->(undef, { Status => 599, Reason => "only http and https URL schemes supported", URL => $url }); 352 : return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", URL => $url });
274 353
275 $hdr{referer} ||= "$scheme://$authority$upath"; # leave out fragment and query string, just a heuristic
276
277 $authority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x 354 $uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
278 or return $cb->(undef, { Status => 599, Reason => "unparsable URL", URL => $url }); 355 or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", URL => $url });
279 356
280 my $uhost = $1; 357 my $uhost = $1;
281 $uport = $2 if defined $2; 358 $uport = $2 if defined $2;
282 359
283 $uhost =~ s/^\[(.*)\]$/$1/; 360 $uhost =~ s/^\[(.*)\]$/$1/;
… …
285 362
286 $upath =~ s%^/?%/%; 363 $upath =~ s%^/?%/%;
287 364
288 # cookie processing 365 # cookie processing
289 if (my $jar = $arg{cookie_jar}) { 366 if (my $jar = $arg{cookie_jar}) {
290 %$jar = () if $jar->{version} < 1; 367 %$jar = () if $jar->{version} != 1;
291 368
292 my @cookie; 369 my @cookie;
293 370
294 while (my ($chost, $v) = each %$jar) { 371 while (my ($chost, $v) = each %$jar) {
295 if ($chost =~ /^\./) { 372 if ($chost =~ /^\./) {
… …
302 379
303 while (my ($cpath, $v) = each %$v) { 380 while (my ($cpath, $v) = each %$v) {
304 next unless $cpath eq substr $upath, 0, length $cpath; 381 next unless $cpath eq substr $upath, 0, length $cpath;
305 382
306 while (my ($k, $v) = each %$v) { 383 while (my ($k, $v) = each %$v) {
307 next if $scheme ne "https" && exists $v->{secure}; 384 next if $uscheme ne "https" && exists $v->{secure};
385 my $value = $v->{value};
386 $value =~ s/([\\"])/\\$1/g;
308 push @cookie, "$k=$v->{value}"; 387 push @cookie, "$k=\"$value\"";
309 } 388 }
310 } 389 }
311 } 390 }
312 391
313 $hdr{cookie} = join "; ", @cookie 392 $hdr{cookie} = join "; ", @cookie
314 if @cookie; 393 if @cookie;
315 } 394 }
316 395
317 my ($rhost, $rport, $rpath); # request host, port, path 396 my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
318 397
319 if ($proxy) { 398 if ($proxy) {
320 ($rhost, $rport, $scheme) = @$proxy; 399 ($rpath, $rhost, $rport, $rscheme) = ($url, @$proxy);
321 $rpath = $url; 400
401 # don't support https requests over https-proxy transport,
402 # can't be done with tls as spec'ed, unless you double-encrypt.
403 $rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";
322 } else { 404 } else {
323 ($rhost, $rport, $rpath) = ($uhost, $uport, $upath); 405 ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
324 $hdr{host} = $uhost;
325 } 406 }
326 407
408 $hdr{"user-agent"} ||= $USERAGENT;
409 $hdr{referer} ||= "$uscheme://$uauthority$upath"; # leave out fragment and query string, just a heuristic
410
411 $hdr{host} = "$uhost:$uport";
327 $hdr{"content-length"} = length $arg{body}; 412 $hdr{"content-length"} = length $arg{body};
328 413
329 my %state = (connect_guard => 1); 414 my %state = (connect_guard => 1);
330 415
331 _get_slot $uhost, sub { 416 _get_slot $uhost, sub {
… …
333 418
334 return unless $state{connect_guard}; 419 return unless $state{connect_guard};
335 420
336 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub { 421 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {
337 $state{fh} = shift 422 $state{fh} = shift
338 or return $cb->(undef, { Status => 599, Reason => "$!", URL => $url }); 423 or return (%state = (), $cb->(undef, { Status => 599, Reason => "$!", URL => $url }));
424 pop; # free memory, save a tree
339 425
340 delete $state{connect_guard}; # reduce memory usage, save a tree 426 return unless delete $state{connect_guard};
341 427
342 # get handle 428 # get handle
343 $state{handle} = new AnyEvent::Handle 429 $state{handle} = new AnyEvent::Handle
344 fh => $state{fh}, 430 fh => $state{fh},
345 ($scheme eq "https" ? (tls => "connect") : ()); 431 timeout => $timeout,
432 peername => $rhost,
433 tls_ctx => $arg{tls_ctx};
346 434
347 # limit the number of persistent connections 435 # limit the number of persistent connections
436 # keepalive not yet supported
348 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { 437 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
349 ++$KA_COUNT{$_[1]}; 438 ++$KA_COUNT{$_[1]};
350 $state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} }; 439 $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
440 --$KA_COUNT{$_[1]}
441 };
351 $hdr{connection} = "keep-alive"; 442 $hdr{connection} = "keep-alive";
352 delete $hdr{connection}; # keep-alive not yet supported
353 } else { 443 } else {
354 delete $hdr{connection}; 444 delete $hdr{connection};
355 } 445 }
356 446
357 # (re-)configure handle 447 # (re-)configure handle
358 $state{handle}->timeout ($timeout);
359 $state{handle}->on_error (sub { 448 $state{handle}->on_error (sub {
360 my $errno = "$!";
361 %state = (); 449 %state = ();
362 $cb->(undef, { Status => 599, Reason => $errno, URL => $url }); 450 $cb->(undef, { Status => 599, Reason => $_[2], URL => $url });
363 }); 451 });
364 $state{handle}->on_eof (sub { 452 $state{handle}->on_eof (sub {
365 %state = (); 453 %state = ();
366 $cb->(undef, { Status => 599, Reason => "unexpected end-of-file", URL => $url }); 454 $cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", URL => $url });
367 }); 455 });
368 456
457 $state{handle}->starttls ("connect") if $rscheme eq "https";
458
459 # handle actual, non-tunneled, request
460 my $handle_actual_request = sub {
461 $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
462
369 # send request 463 # send request
370 $state{handle}->push_write ( 464 $state{handle}->push_write (
371 "$method $rpath HTTP/1.0\015\012" 465 "$method $rpath HTTP/1.0\015\012"
372 . (join "", map "$_: $hdr{$_}\015\012", keys %hdr) 466 . (join "", map "\u$_: $hdr{$_}\015\012", keys %hdr)
373 . "\015\012" 467 . "\015\012"
374 . (delete $arg{body}) 468 . (delete $arg{body})
375 );
376
377 %hdr = (); # reduce memory usage, save a kitten
378
379 # status line
380 $state{handle}->push_read (line => qr/\015?\012/, sub {
381 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
382 or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])", URL => $url }));
383
384 my %hdr = ( # response headers
385 HTTPVersion => "\x00$1",
386 Status => "\x00$2",
387 Reason => "\x00$3",
388 URL => "\x00$url"
389 ); 469 );
390 470
471 %hdr = (); # reduce memory usage, save a kitten
472
473 # status line
474 $state{handle}->push_read (line => $qr_nl, sub {
475 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
476 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", URL => $url }));
477
478 my %hdr = ( # response headers
479 HTTPVersion => ",$1",
480 Status => ",$2",
481 Reason => ",$3",
482 URL => ",$url"
483 );
484
391 # headers, could be optimized a bit 485 # headers, could be optimized a bit
392 $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub { 486 $state{handle}->unshift_read (line => $qr_nlnl, sub {
393 for ("$_[1]\012") { 487 for ("$_[1]\012") {
394 # we support spaces in field names, as lotus domino 488 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
395 # creates them (actually spaces around seperators 489
396 # are strictly allowed in http, they are a security issue). 490 # things seen, not parsed:
491 # p3pP="NON CUR OTPi OUR NOR UNI"
492
397 $hdr{lc $1} .= "\x00$2" 493 $hdr{lc $1} .= ",$2"
398 while /\G 494 while /\G
399 ([^:\000-\037]+): 495 ([^:\000-\037]+):
400 [\011\040]* 496 [\011\040]*
401 ((?: [^\015\012]+ | \015?\012[\011\040] )*) 497 ((?: [^\012]+ | \012[\011\040] )*)
402 \015?\012 498 \012
403 /gxc; 499 /gxc;
404 500
405 /\G$/ 501 /\G$/
406 or return (%state = (), $cb->(undef, { Status => 599, Reason => "garbled response headers", URL => $url })); 502 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", URL => $url }));
407 }
408
409 substr $_, 0, 1, ""
410 for values %hdr;
411
412 my $finish = sub {
413 # TODO: use destroy method, when/if available
414 #$state{handle}->destroy;
415 $state{handle}->on_eof (undef);
416 $state{handle}->on_error (undef);
417 %state = ();
418
419 # set-cookie processing
420 if ($arg{cookie_jar} && exists $hdr{"set-cookie"}) {
421 for (split /\x00/, $hdr{"set-cookie"}) {
422 my ($cookie, @arg) = split /;\s*/;
423 my ($name, $value) = split /=/, $cookie, 2;
424 my %kv = (value => $value, map { split /=/, $_, 2 } @arg);
425
426 my $cdom;
427 my $cpath = (delete $kv{path}) || "/";
428
429 if (exists $kv{domain}) {
430 $cdom = delete $kv{domain};
431
432 $cdom =~ s/^\.?/./; # make sure it starts with a "."
433
434 next if $cdom =~ /\.$/;
435
436 # this is not rfc-like and not netscape-like. go figure.
437 my $ndots = $cdom =~ y/.//;
438 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
439 } else {
440 $cdom = $uhost;
441 }
442
443 # store it
444 $arg{cookie_jar}{version} = 1;
445 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
446 }
447 } 503 }
448 504
505 substr $_, 0, 1, ""
506 for values %hdr;
507
508 # redirect handling
449 # microsoft and other shitheads don't give a shit for following standards, 509 # microsoft and other shitheads don't give a shit for following standards,
450 # try to support some common forms of broken Location headers. 510 # try to support some common forms of broken Location headers.
451 if ($_[1]{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) { 511 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
452 $_[1]{location} =~ s/^\.\/+//; 512 $hdr{location} =~ s/^\.\/+//;
453 513
454 my $url = "$scheme://$uhost:$uport"; 514 my $url = "$rscheme://$uhost:$uport";
455 515
456 unless ($_[1]{location} =~ s/^\///) { 516 unless ($hdr{location} =~ s/^\///) {
457 $url .= $upath; 517 $url .= $upath;
458 $url =~ s/\/[^\/]*$//; 518 $url =~ s/\/[^\/]*$//;
459 } 519 }
460 520
461 $_[1]{location} = "$url/$_[1]{location}"; 521 $hdr{location} = "$url/$hdr{location}";
462 } 522 }
463 523
524 my $redirect;
525
526 if ($recurse) {
464 if ($_[1]{Status} =~ /^30[12]$/ && $recurse && $method ne "POST") { 527 if ($hdr{Status} =~ /^30[12]$/ && $method ne "POST") {
465 # apparently, mozilla et al. just change POST to GET here 528 # apparently, mozilla et al. just change POST to GET here
466 # more research is needed before we do the same 529 # more research is needed before we do the same
467 http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb); 530 $redirect = 1;
468 } elsif ($_[1]{Status} == 303 && $recurse) { 531 } elsif ($hdr{Status} == 303) {
469 # even http/1.1 is unclear on how to mutate the method 532 # even http/1.1 is unclear on how to mutate the method
470 $method = "GET" unless $method eq "HEAD"; 533 $method = "GET" unless $method eq "HEAD";
534 $redirect = 1;
535 } elsif ($hdr{Status} == 307 && $method =~ /^(?:GET|HEAD)$/) {
536 $redirect = 1;
537 }
538 }
539
540 my $finish = sub {
541 $state{handle}->destroy if $state{handle};
542 %state = ();
543
544 # set-cookie processing
545 if ($arg{cookie_jar}) {
546 for ($_[1]{"set-cookie"}) {
547 # parse NAME=VALUE
548 my @kv;
549
550 while (/\G\s* ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )/gcxs) {
551 my $name = $1;
552 my $value = $3;
553
554 unless ($value) {
555 $value = $2;
556 $value =~ s/\\(.)/$1/gs;
557 }
558
559 push @kv, $name => $value;
560
561 last unless /\G\s*;/gc;
562 }
563
564 last unless @kv;
565
566 my $name = shift @kv;
567 my %kv = (value => shift @kv, @kv);
568
569 my $cdom;
570 my $cpath = (delete $kv{path}) || "/";
571
572 if (exists $kv{domain}) {
573 $cdom = delete $kv{domain};
574
575 $cdom =~ s/^\.?/./; # make sure it starts with a "."
576
577 next if $cdom =~ /\.$/;
578
579 # this is not rfc-like and not netscape-like. go figure.
580 my $ndots = $cdom =~ y/.//;
581 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
582 } else {
583 $cdom = $uhost;
584 }
585
586 # store it
587 $arg{cookie_jar}{version} = 1;
588 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
589
590 redo if /\G\s*,/gc;
591 }
592 }
593
594 if ($redirect) {
595 # we ignore any errors, as it is very common to receive
596 # Content-Length != 0 but no actual body
597 # we also access %hdr, as $_[1] might be an erro
471 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb); 598 http_request ($method => $hdr{location}, %arg, recurse => $recurse - 1, $cb);
472 } elsif ($_[1]{Status} == 307 && $recurse && $method =~ /^(?:GET|HEAD)$/) { 599 } else {
473 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb); 600 $cb->($_[0], $_[1]);
601 }
602 };
603
604 my $len = $hdr{"content-length"};
605
606 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
607 $finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", URL => $url });
608 } elsif (
609 $hdr{Status} =~ /^(?:1..|[23]04)$/
610 or $method eq "HEAD"
611 or (defined $len && !$len)
612 ) {
613 # no body
614 $finish->("", \%hdr);
474 } else { 615 } else {
475 $cb->($_[0], $_[1]); 616 # body handling, four different code paths
617 # for want_body_handle, on_body (2x), normal (2x)
618 # we might read too much here, but it does not matter yet (no pers. connections)
619 if (!$redirect && $arg{want_body_handle}) {
620 $_[0]->on_eof (undef);
621 $_[0]->on_error (undef);
622 $_[0]->on_read (undef);
623
624 $finish->(delete $state{handle}, \%hdr);
625
626 } elsif ($arg{on_body}) {
627 $_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
628 if ($len) {
629 $_[0]->on_eof (undef);
630 $_[0]->on_read (sub {
631 $len -= length $_[0]{rbuf};
632
633 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
634 or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
635
636 $len > 0
637 or $finish->("", \%hdr);
638 });
639 } else {
640 $_[0]->on_eof (sub {
641 $finish->("", \%hdr);
642 });
643 $_[0]->on_read (sub {
644 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
645 or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
646 });
647 }
648 } else {
649 $_[0]->on_eof (undef);
650
651 if ($len) {
652 $_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
653 $_[0]->on_read (sub {
654 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
655 if $len <= length $_[0]{rbuf};
656 });
657 } else {
658 $_[0]->on_error (sub {
659 $! == Errno::EPIPE
660 ? $finish->(delete $_[0]{rbuf}, \%hdr)
661 : $finish->(undef, { Status => 599, Reason => $_[2], URL => $url });
662 });
663 $_[0]->on_read (sub { });
664 }
665 }
476 } 666 }
477 }; 667 });
668 });
669 };
478 670
479 if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") { 671 # now handle proxy-CONNECT method
480 $finish->(undef, \%hdr); 672 if ($proxy && $uscheme eq "https") {
673 # oh dear, we have to wrap it into a connect request
674
675 # maybe re-use $uauthority with patched port?
676 $state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
677 $state{handle}->push_read (line => $qr_nlnl, sub {
678 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
679 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", URL => $url }));
680
681 if ($2 == 200) {
682 $rpath = $upath;
683 &$handle_actual_request;
481 } else { 684 } else {
482 if (exists $hdr{"content-length"}) { 685 %state = ();
483 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub { 686 $cb->(undef, { Status => $2, Reason => $3, URL => $url });
484 # could cache persistent connection now
485 if ($hdr{connection} =~ /\bkeep-alive\b/i) {
486 # but we don't, due to misdesigns, this is annoyingly complex
487 };
488
489 $finish->($_[1], \%hdr);
490 });
491 } else {
492 # too bad, need to read until we get an error or EOF,
493 # no way to detect winged data.
494 $_[0]->on_error (sub {
495 $finish->($_[0]{rbuf}, \%hdr);
496 });
497 $_[0]->on_eof (undef);
498 $_[0]->on_read (sub { });
499 }
500 } 687 }
501 }); 688 });
689 } else {
690 &$handle_actual_request;
502 }); 691 }
692
503 }, sub { 693 }, sub {
504 $timeout 694 $timeout
505 }; 695 };
506 }; 696 };
507 697
… …
540The default value for the C<recurse> request parameter (default: C<10>). 730The default value for the C<recurse> request parameter (default: C<10>).
541 731
542=item $AnyEvent::HTTP::USERAGENT 732=item $AnyEvent::HTTP::USERAGENT
543 733
544The default value for the C<User-Agent> header (the default is 734The default value for the C<User-Agent> header (the default is
545C<Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>). 735C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>).
546 736
547=item $AnyEvent::HTTP::MAX_PERSISTENT 737=item $AnyEvent::HTTP::MAX_PERSISTENT
548 738
549The maximum number of persistent connections to keep open (default: 8). 739The maximum number of persistent connections to keep open (default: 8).
550 740
… …
580=head1 AUTHOR 770=head1 AUTHOR
581 771
582 Marc Lehmann <schmorp@schmorp.de> 772 Marc Lehmann <schmorp@schmorp.de>
583 http://home.schmorp.de/ 773 http://home.schmorp.de/
584 774
775With many thanks to Дмитрий Шалашов, who provided countless
776testcases and bugreports.
777
585=cut 778=cut
586 779
5871 7801
588 781

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