ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/AnyEvent-HTTP/HTTP.pm
(Generate patch)

Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.30 by root, Thu Oct 23 02:46:20 2008 UTC vs.
Revision 1.41 by root, Sun Jul 5 23:50:59 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 $TIMEOUT = 300;
62 62
… …
104headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason> 104headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason>
105contain the three parts of the HTTP Status-Line of the same name. The 105contain the three parts of the HTTP Status-Line of the same name. The
106pseudo-header C<URL> contains the original URL (which can differ from the 106pseudo-header C<URL> contains the original URL (which can differ from the
107requested URL when following redirects). 107requested URL when following redirects).
108 108
109If the server sends a header multiple lines, then their contents will be 109If the server sends a header multiple times, then their contents will be
110joined together with C<\x00>. 110joined together with a comma (C<,>), as per the HTTP spec.
111 111
112If an internal error occurs, such as not being able to resolve a hostname, 112If an internal error occurs, such as not being able to resolve a hostname,
113then C<$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 => $callback->($hdr)
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
205=item on_body => $callback->($data, $hdr)
206
207When specified, all body data will be "filtered" through this callback.
208
209The callback will incrementally receive body data, and is supposed to
210return it or a modified version of it (empty strings are valid returns).
211
212If the callback returns C<undef>, then the request will be cancelled.
213
214This callback is useful when you want to do some processing on the data,
215or the data is too large to be held in memory (so the callback writes it
216to a file and returns the empty string) and so on.
217
218It is usually preferred over doing your own body handling via
219C<want_body_handle>.
220
221=item want_body_handle => $enable
222
223When enabled (default is disabled), the behaviour of AnyEvent::HTTP
224changes considerably: after parsing the headers, and instead of
225downloading the body (if any), the completion callback will be
226called. Instead of the C<$body> argument containing the body data, the
227callback will receive the L<AnyEvent::Handle> object associated with the
228connection. In error cases, C<undef> will be passed. When there is no body
229(e.g. status C<304>), the empty string will be passed.
230
231The handle object might or might not be in TLS mode, might be connected to
232a proxy, be a persistent connection etc., and configured in unspecified
233ways. The user is responsible for this handle (it will not be used by this
234module anymore).
235
236This is useful with some push-type services, where, after the initial
237headers, an interactive protocol is used (typical example would be the
238push-style twitter API which starts a JSON/XML stream).
239
240If you think you need this, first have a look at C<on_body>, to see if
241that doesn'T solve your problem in a better way.
177 242
178=back 243=back
179 244
180Example: make a simple HTTP GET request for http://www.nethype.de/ 245Example: make a simple HTTP GET request for http://www.nethype.de/
181 246
… …
237 push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; 302 push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
238 303
239 _slot_schedule $_[0]; 304 _slot_schedule $_[0];
240} 305}
241 306
307our $qr_nl = qr<\015?\012>;
308our $qr_nlnl = qr<\015?\012\015?\012>;
309
310our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
311our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
312
242sub http_request($$@) { 313sub http_request($$@) {
243 my $cb = pop; 314 my $cb = pop;
244 my ($method, $url, %arg) = @_; 315 my ($method, $url, %arg) = @_;
245 316
246 my %hdr; 317 my %hdr;
318
319 $arg{tls_ctx} = $TLS_CTX_LOW if $arg{tls_ctx} eq "low" || !exists $arg{tls_ctx};
320 $arg{tls_ctx} = $TLS_CTX_HIGH if $arg{tls_ctx} eq "high";
247 321
248 $method = uc $method; 322 $method = uc $method;
249 323
250 if (my $hdr = $arg{headers}) { 324 if (my $hdr = $arg{headers}) {
251 while (my ($k, $v) = each %$hdr) { 325 while (my ($k, $v) = each %$hdr) {
… …
253 } 327 }
254 } 328 }
255 329
256 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE; 330 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
257 331
258 return $cb->(undef, { Status => 599, Reason => "recursion limit reached", URL => $url }) 332 return $cb->(undef, { Status => 599, Reason => "Too many redirections", URL => $url })
259 if $recurse < 0; 333 if $recurse < 0;
260 334
261 my $proxy = $arg{proxy} || $PROXY; 335 my $proxy = $arg{proxy} || $PROXY;
262 my $timeout = $arg{timeout} || $TIMEOUT; 336 my $timeout = $arg{timeout} || $TIMEOUT;
263 337
264 $hdr{"user-agent"} ||= $USERAGENT;
265
266 my ($scheme, $authority, $upath, $query, $fragment) = 338 my ($uscheme, $uauthority, $upath, $query, $fragment) =
267 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|; 339 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|;
268 340
269 $scheme = lc $scheme; 341 $uscheme = lc $uscheme;
270 342
271 my $uport = $scheme eq "http" ? 80 343 my $uport = $uscheme eq "http" ? 80
272 : $scheme eq "https" ? 443 344 : $uscheme eq "https" ? 443
273 : return $cb->(undef, { Status => 599, Reason => "only http and https URL schemes supported", URL => $url }); 345 : return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", URL => $url });
274 346
275 $hdr{referer} ||= "$scheme://$authority$upath"; # leave out fragment and query string, just a heuristic
276
277 $authority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x 347 $uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
278 or return $cb->(undef, { Status => 599, Reason => "unparsable URL", URL => $url }); 348 or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", URL => $url });
279 349
280 my $uhost = $1; 350 my $uhost = $1;
281 $uport = $2 if defined $2; 351 $uport = $2 if defined $2;
282 352
283 $uhost =~ s/^\[(.*)\]$/$1/; 353 $uhost =~ s/^\[(.*)\]$/$1/;
… …
285 355
286 $upath =~ s%^/?%/%; 356 $upath =~ s%^/?%/%;
287 357
288 # cookie processing 358 # cookie processing
289 if (my $jar = $arg{cookie_jar}) { 359 if (my $jar = $arg{cookie_jar}) {
290 %$jar = () if $jar->{version} < 1; 360 %$jar = () if $jar->{version} != 1;
291 361
292 my @cookie; 362 my @cookie;
293 363
294 while (my ($chost, $v) = each %$jar) { 364 while (my ($chost, $v) = each %$jar) {
295 if ($chost =~ /^\./) { 365 if ($chost =~ /^\./) {
… …
302 372
303 while (my ($cpath, $v) = each %$v) { 373 while (my ($cpath, $v) = each %$v) {
304 next unless $cpath eq substr $upath, 0, length $cpath; 374 next unless $cpath eq substr $upath, 0, length $cpath;
305 375
306 while (my ($k, $v) = each %$v) { 376 while (my ($k, $v) = each %$v) {
307 next if $scheme ne "https" && exists $v->{secure}; 377 next if $uscheme ne "https" && exists $v->{secure};
378 my $value = $v->{value};
379 $value =~ s/([\\"])/\\$1/g;
308 push @cookie, "$k=$v->{value}"; 380 push @cookie, "$k=\"$value\"";
309 } 381 }
310 } 382 }
311 } 383 }
312 384
313 $hdr{cookie} = join "; ", @cookie 385 $hdr{cookie} = join "; ", @cookie
314 if @cookie; 386 if @cookie;
315 } 387 }
316 388
317 my ($rhost, $rport, $rpath); # request host, port, path 389 my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
318 390
319 if ($proxy) { 391 if ($proxy) {
320 ($rhost, $rport, $scheme) = @$proxy; 392 ($rpath, $rhost, $rport, $rscheme) = ($url, @$proxy);
321 $rpath = $url; 393
394 # don't support https requests over https-proxy transport,
395 # can't be done with tls as spec'ed, unless you double-encrypt.
396 $rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";
322 } else { 397 } else {
323 ($rhost, $rport, $rpath) = ($uhost, $uport, $upath); 398 ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
324 $hdr{host} = $uhost;
325 } 399 }
326 400
401 $hdr{"user-agent"} ||= $USERAGENT;
402 $hdr{referer} ||= "$uscheme://$uauthority$upath"; # leave out fragment and query string, just a heuristic
403
404 $hdr{host} = "$uhost:$uport";
327 $hdr{"content-length"} = length $arg{body}; 405 $hdr{"content-length"} = length $arg{body};
328 406
329 my %state = (connect_guard => 1); 407 my %state = (connect_guard => 1);
330 408
331 _get_slot $uhost, sub { 409 _get_slot $uhost, sub {
… …
333 411
334 return unless $state{connect_guard}; 412 return unless $state{connect_guard};
335 413
336 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub { 414 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {
337 $state{fh} = shift 415 $state{fh} = shift
338 or return $cb->(undef, { Status => 599, Reason => "$!", URL => $url }); 416 or return (%state = (), $cb->(undef, { Status => 599, Reason => "$!", URL => $url }));
417 pop; # free memory, save a tree
339 418
340 delete $state{connect_guard}; # reduce memory usage, save a tree 419 return unless delete $state{connect_guard};
341 420
342 # get handle 421 # get handle
343 $state{handle} = new AnyEvent::Handle 422 $state{handle} = new AnyEvent::Handle
344 fh => $state{fh}, 423 fh => $state{fh},
345 ($scheme eq "https" ? (tls => "connect") : ()); 424 timeout => $timeout,
425 peername => $rhost,
426 tls_ctx => $arg{tls_ctx};
346 427
347 # limit the number of persistent connections 428 # limit the number of persistent connections
429 # keepalive not yet supported
348 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { 430 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
349 ++$KA_COUNT{$_[1]}; 431 ++$KA_COUNT{$_[1]};
350 $state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} }; 432 $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
433 --$KA_COUNT{$_[1]}
434 };
351 $hdr{connection} = "keep-alive"; 435 $hdr{connection} = "keep-alive";
352 delete $hdr{connection}; # keep-alive not yet supported
353 } else { 436 } else {
354 delete $hdr{connection}; 437 delete $hdr{connection};
355 } 438 }
356 439
357 # (re-)configure handle 440 # (re-)configure handle
358 $state{handle}->timeout ($timeout);
359 $state{handle}->on_error (sub { 441 $state{handle}->on_error (sub {
360 my $errno = "$!";
361 %state = (); 442 %state = ();
362 $cb->(undef, { Status => 599, Reason => $errno, URL => $url }); 443 $cb->(undef, { Status => 599, Reason => $_[2], URL => $url });
363 }); 444 });
364 $state{handle}->on_eof (sub { 445 $state{handle}->on_eof (sub {
365 %state = (); 446 %state = ();
366 $cb->(undef, { Status => 599, Reason => "unexpected end-of-file", URL => $url }); 447 $cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", URL => $url });
367 }); 448 });
368 449
450 $state{handle}->starttls ("connect") if $rscheme eq "https";
451
452 # handle actual, non-tunneled, request
453 my $handle_actual_request = sub {
454 $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
455
369 # send request 456 # send request
370 $state{handle}->push_write ( 457 $state{handle}->push_write (
371 "$method $rpath HTTP/1.0\015\012" 458 "$method $rpath HTTP/1.0\015\012"
372 . (join "", map "$_: $hdr{$_}\015\012", keys %hdr) 459 . (join "", map "\u$_: $hdr{$_}\015\012", keys %hdr)
373 . "\015\012" 460 . "\015\012"
374 . (delete $arg{body}) 461 . (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 ); 462 );
390 463
464 %hdr = (); # reduce memory usage, save a kitten
465
466 # status line
467 $state{handle}->push_read (line => $qr_nl, sub {
468 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
469 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", URL => $url }));
470
471 my %hdr = ( # response headers
472 HTTPVersion => ",$1",
473 Status => ",$2",
474 Reason => ",$3",
475 URL => ",$url"
476 );
477
391 # headers, could be optimized a bit 478 # headers, could be optimized a bit
392 $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub { 479 $state{handle}->unshift_read (line => $qr_nlnl, sub {
393 for ("$_[1]\012") { 480 for ("$_[1]\012") {
394 # we support spaces in field names, as lotus domino 481 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
395 # creates them (actually spaces around seperators 482
396 # are strictly allowed in http, they are a security issue). 483 # things seen, not parsed:
484 # p3pP="NON CUR OTPi OUR NOR UNI"
485
397 $hdr{lc $1} .= "\x00$2" 486 $hdr{lc $1} .= ",$2"
398 while /\G 487 while /\G
399 ([^:\000-\037]+): 488 ([^:\000-\037]+):
400 [\011\040]* 489 [\011\040]*
401 ((?: [^\015\012]+ | \015?\012[\011\040] )*) 490 ((?: [^\012]+ | \012[\011\040] )*)
402 \015?\012 491 \012
403 /gxc; 492 /gxc;
404 493
405 /\G$/ 494 /\G$/
406 or return (%state = (), $cb->(undef, { Status => 599, Reason => "garbled response headers", URL => $url })); 495 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 } 496 }
448 497
498 substr $_, 0, 1, ""
499 for values %hdr;
500
501 # redirect handling
449 # microsoft and other shitheads don't give a shit for following standards, 502 # microsoft and other shitheads don't give a shit for following standards,
450 # try to support some common forms of broken Location headers. 503 # try to support some common forms of broken Location headers.
451 if ($_[1]{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) { 504 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
452 $_[1]{location} =~ s/^\.\/+//; 505 $hdr{location} =~ s/^\.\/+//;
453 506
454 my $url = "$scheme://$uhost:$uport"; 507 my $url = "$rscheme://$uhost:$uport";
455 508
456 unless ($_[1]{location} =~ s/^\///) { 509 unless ($hdr{location} =~ s/^\///) {
457 $url .= $upath; 510 $url .= $upath;
458 $url =~ s/\/[^\/]*$//; 511 $url =~ s/\/[^\/]*$//;
459 } 512 }
460 513
461 $_[1]{location} = "$url/$_[1]{location}"; 514 $hdr{location} = "$url/$hdr{location}";
462 } 515 }
463 516
517 my $redirect;
518
519 if ($recurse) {
464 if ($_[1]{Status} =~ /^30[12]$/ && $recurse && $method ne "POST") { 520 if ($hdr{Status} =~ /^30[12]$/ && $method ne "POST") {
465 # apparently, mozilla et al. just change POST to GET here 521 # apparently, mozilla et al. just change POST to GET here
466 # more research is needed before we do the same 522 # more research is needed before we do the same
467 http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb); 523 $redirect = 1;
468 } elsif ($_[1]{Status} == 303 && $recurse) { 524 } elsif ($hdr{Status} == 303) {
469 # even http/1.1 is unclear on how to mutate the method 525 # even http/1.1 is unclear on how to mutate the method
470 $method = "GET" unless $method eq "HEAD"; 526 $method = "GET" unless $method eq "HEAD";
527 $redirect = 1;
528 } elsif ($hdr{Status} == 307 && $method =~ /^(?:GET|HEAD)$/) {
529 $redirect = 1;
530 }
531 }
532
533 my $finish = sub {
534 $state{handle}->destroy if $state{handle};
535 %state = ();
536
537 # set-cookie processing
538 if ($arg{cookie_jar}) {
539 for ($_[1]{"set-cookie"}) {
540 # parse NAME=VALUE
541 my @kv;
542
543 while (/\G\s* ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )/gcxs) {
544 my $name = $1;
545 my $value = $3;
546
547 unless ($value) {
548 $value = $2;
549 $value =~ s/\\(.)/$1/gs;
550 }
551
552 push @kv, $name => $value;
553
554 last unless /\G\s*;/gc;
555 }
556
557 last unless @kv;
558
559 my $name = shift @kv;
560 my %kv = (value => shift @kv, @kv);
561
562 my $cdom;
563 my $cpath = (delete $kv{path}) || "/";
564
565 if (exists $kv{domain}) {
566 $cdom = delete $kv{domain};
567
568 $cdom =~ s/^\.?/./; # make sure it starts with a "."
569
570 next if $cdom =~ /\.$/;
571
572 # this is not rfc-like and not netscape-like. go figure.
573 my $ndots = $cdom =~ y/.//;
574 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
575 } else {
576 $cdom = $uhost;
577 }
578
579 # store it
580 $arg{cookie_jar}{version} = 1;
581 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
582
583 redo if /\G\s*,/gc;
584 }
585 }
586
587 if ($redirect) {
588 # we ignore any errors, as it is very common to receive
589 # Content-Length != 0 but no actual body
590 # we also access %hdr, as $_[1] might be an erro
471 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb); 591 http_request ($method => $hdr{location}, %arg, recurse => $recurse - 1, $cb);
472 } elsif ($_[1]{Status} == 307 && $recurse && $method =~ /^(?:GET|HEAD)$/) { 592 } else {
473 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb); 593 $cb->($_[0], $_[1]);
594 }
595 };
596
597 my $len = $hdr{"content-length"};
598
599 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
600 $finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", URL => $url });
601 } elsif (
602 $hdr{Status} =~ /^(?:1..|204|304)$/
603 or $method eq "HEAD"
604 or (defined $len && !$len)
605 ) {
606 # no body
607 $finish->("", \%hdr);
474 } else { 608 } else {
475 $cb->($_[0], $_[1]); 609 # body handling, four different code paths
610 # for want_body_handle, on_body (2x), normal (2x)
611 # we might read too much here, but it does not matter yet (no pers. connections)
612 if (!$redirect && $arg{want_body_handle}) {
613 $_[0]->on_eof (undef);
614 $_[0]->on_error (undef);
615 $_[0]->on_read (undef);
616
617 $finish->(delete $state{handle}, \%hdr);
618
619 } elsif ($arg{on_body}) {
620 $_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
621 if ($len) {
622 $_[0]->on_eof (undef);
623 $_[0]->on_read (sub {
624 $len -= length $_[0]{rbuf};
625
626 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
627 or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
628
629 $len > 0
630 or $finish->("", \%hdr);
631 });
632 } else {
633 $_[0]->on_eof (sub {
634 $finish->("", \%hdr);
635 });
636 $_[0]->on_read (sub {
637 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
638 or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
639 });
640 }
641 } else {
642 $_[0]->on_eof (undef);
643
644 if ($len) {
645 $_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
646 $_[0]->on_read (sub {
647 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
648 if $len <= length $_[0]{rbuf};
649 });
650 } else {
651 $_[0]->on_error (sub {
652 $! == Errno::EPIPE
653 ? $finish->(delete $_[0]{rbuf}, \%hdr)
654 : $finish->(undef, { Status => 599, Reason => $_[2], URL => $url });
655 });
656 $_[0]->on_read (sub { });
657 }
658 }
476 } 659 }
477 }; 660 });
661 });
662 };
478 663
479 if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") { 664 # now handle proxy-CONNECT method
480 $finish->(undef, \%hdr); 665 if ($proxy && $uscheme eq "https") {
666 # oh dear, we have to wrap it into a connect request
667
668 # maybe re-use $uauthority with patched port?
669 $state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
670 $state{handle}->push_read (line => $qr_nlnl, sub {
671 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
672 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", URL => $url }));
673
674 if ($2 == 200) {
675 $rpath = $upath;
676 &$handle_actual_request;
481 } else { 677 } else {
482 if (exists $hdr{"content-length"}) { 678 %state = ();
483 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub { 679 $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 $_[0]->on_read (sub { });
499 }
500 } 680 }
501 }); 681 });
682 } else {
683 &$handle_actual_request;
502 }); 684 }
685
503 }, sub { 686 }, sub {
504 $timeout 687 $timeout
505 }; 688 };
506 }; 689 };
507 690
… …
540The default value for the C<recurse> request parameter (default: C<10>). 723The default value for the C<recurse> request parameter (default: C<10>).
541 724
542=item $AnyEvent::HTTP::USERAGENT 725=item $AnyEvent::HTTP::USERAGENT
543 726
544The default value for the C<User-Agent> header (the default is 727The default value for the C<User-Agent> header (the default is
545C<Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>). 728C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>).
546 729
547=item $AnyEvent::HTTP::MAX_PERSISTENT 730=item $AnyEvent::HTTP::MAX_PERSISTENT
548 731
549The maximum number of persistent connections to keep open (default: 8). 732The maximum number of persistent connections to keep open (default: 8).
550 733
… …
580=head1 AUTHOR 763=head1 AUTHOR
581 764
582 Marc Lehmann <schmorp@schmorp.de> 765 Marc Lehmann <schmorp@schmorp.de>
583 http://home.schmorp.de/ 766 http://home.schmorp.de/
584 767
768With many thanks to Дмитрий Шалашов, who provided countless
769testcases and bugreports.
770
585=cut 771=cut
586 772
5871 7731
588 774

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines