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 1.37 by root, Fri Nov 21 08:20:14 2008 UTC vs.
Revision 1.44 by root, Tue Jul 7 00:15:32 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 4.8 ();
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 = '1.11'; 53our $VERSION = '1.4';
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
63# changing these is evil 63# changing these is evil
64our $MAX_PERSISTENT_PER_HOST = 2; 64our $MAX_PERSISTENT_PER_HOST = 0;
65our $MAX_PER_HOST = 4; 65our $MAX_PER_HOST = 4;
66 66
67our $PROXY; 67our $PROXY;
68our $ACTIVE = 0; 68our $ACTIVE = 0;
69 69
… …
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
… …
108 108
109If the server sends a header multiple times, then their contents will be 109If the server sends a header multiple times, then their contents will be
110joined together with a comma (C<,>), as per the HTTP spec. 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
… …
240} 312}
241 313
242our $qr_nl = qr<\015?\012>; 314our $qr_nl = qr<\015?\012>;
243our $qr_nlnl = qr<\015?\012\015?\012>; 315our $qr_nlnl = qr<\015?\012\015?\012>;
244 316
317our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 };
318our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" };
319
245sub http_request($$@) { 320sub http_request($$@) {
246 my $cb = pop; 321 my $cb = pop;
247 my ($method, $url, %arg) = @_; 322 my ($method, $url, %arg) = @_;
248 323
249 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";
250 328
251 $method = uc $method; 329 $method = uc $method;
252 330
253 if (my $hdr = $arg{headers}) { 331 if (my $hdr = $arg{headers}) {
254 while (my ($k, $v) = each %$hdr) { 332 while (my ($k, $v) = each %$hdr) {
… …
256 } 334 }
257 } 335 }
258 336
259 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE; 337 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
260 338
261 return $cb->(undef, { Status => 599, Reason => "recursion limit reached", URL => $url }) 339 return $cb->(undef, { Status => 599, Reason => "Too many redirections", URL => $url })
262 if $recurse < 0; 340 if $recurse < 0;
263 341
264 my $proxy = $arg{proxy} || $PROXY; 342 my $proxy = $arg{proxy} || $PROXY;
265 my $timeout = $arg{timeout} || $TIMEOUT; 343 my $timeout = $arg{timeout} || $TIMEOUT;
266 344
267 $hdr{"user-agent"} ||= $USERAGENT;
268
269 my ($uscheme, $uauthority, $upath, $query, $fragment) = 345 my ($uscheme, $uauthority, $upath, $query, $fragment) =
270 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|; 346 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|;
271 347
272 $uscheme = lc $uscheme; 348 $uscheme = lc $uscheme;
273 349
274 my $uport = $uscheme eq "http" ? 80 350 my $uport = $uscheme eq "http" ? 80
275 : $uscheme eq "https" ? 443 351 : $uscheme eq "https" ? 443
276 : 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 });
277
278 $hdr{referer} ||= "$uscheme://$uauthority$upath"; # leave out fragment and query string, just a heuristic
279 353
280 $uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x 354 $uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
281 or return $cb->(undef, { Status => 599, Reason => "unparsable URL", URL => $url }); 355 or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", URL => $url });
282 356
283 my $uhost = $1; 357 my $uhost = $1;
284 $uport = $2 if defined $2; 358 $uport = $2 if defined $2;
359
360 $hdr{host} = defined $2 ? "$uhost:$2" : "$uhost";
285 361
286 $uhost =~ s/^\[(.*)\]$/$1/; 362 $uhost =~ s/^\[(.*)\]$/$1/;
287 $upath .= "?$query" if length $query; 363 $upath .= "?$query" if length $query;
288 364
289 $upath =~ s%^/?%/%; 365 $upath =~ s%^/?%/%;
… …
320 } 396 }
321 397
322 my ($rhost, $rport, $rscheme, $rpath); # request host, port, path 398 my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
323 399
324 if ($proxy) { 400 if ($proxy) {
325 ($rhost, $rport, $rscheme, $rpath) = (@$proxy, $url); 401 ($rpath, $rhost, $rport, $rscheme) = ($url, @$proxy);
326 402
327 # don't support https requests over https-proxy transport, 403 # don't support https requests over https-proxy transport,
328 # can't be done with tls as spec'ed. 404 # can't be done with tls as spec'ed, unless you double-encrypt.
329 $rscheme = "http" if $uscheme eq "https" && $rscheme eq "https"; 405 $rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";
330 } else { 406 } else {
331 ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath); 407 ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
332 } 408 }
333 409
334 $hdr{host} = $uhost; 410 $hdr{"user-agent"} ||= $USERAGENT;
411 $hdr{referer} ||= "$uscheme://$uauthority$upath"; # leave out fragment and query string, just a heuristic
412
335 $hdr{"content-length"} = length $arg{body}; 413 $hdr{"content-length"} = length $arg{body};
336 414
337 my %state = (connect_guard => 1); 415 my %state = (connect_guard => 1);
338 416
339 _get_slot $uhost, sub { 417 _get_slot $uhost, sub {
… …
341 419
342 return unless $state{connect_guard}; 420 return unless $state{connect_guard};
343 421
344 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub { 422 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {
345 $state{fh} = shift 423 $state{fh} = shift
424 or do {
425 my $err = "$!";
426 %state = ();
346 or return $cb->(undef, { Status => 599, Reason => "$!", URL => $url }); 427 return $cb->(undef, { Status => 599, Reason => $err, URL => $url });
428 };
429
347 pop; # free memory, save a tree 430 pop; # free memory, save a tree
348 431
349 return unless delete $state{connect_guard}; 432 return unless delete $state{connect_guard};
350 433
351 # get handle 434 # get handle
352 $state{handle} = new AnyEvent::Handle 435 $state{handle} = new AnyEvent::Handle
353 fh => $state{fh}, 436 fh => $state{fh},
354 timeout => $timeout; 437 timeout => $timeout,
438 peername => $rhost,
439 tls_ctx => $arg{tls_ctx};
355 440
356 # limit the number of persistent connections 441 # limit the number of persistent connections
357 # keepalive not yet supported 442 # keepalive not yet supported
358 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { 443 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
359 ++$KA_COUNT{$_[1]}; 444 ++$KA_COUNT{$_[1]};
… …
365 delete $hdr{connection}; 450 delete $hdr{connection};
366 } 451 }
367 452
368 # (re-)configure handle 453 # (re-)configure handle
369 $state{handle}->on_error (sub { 454 $state{handle}->on_error (sub {
370 my $errno = "$!";
371 %state = (); 455 %state = ();
372 $cb->(undef, { Status => 599, Reason => $errno, URL => $url }); 456 $cb->(undef, { Status => 599, Reason => $_[2], URL => $url });
373 }); 457 });
374 $state{handle}->on_eof (sub { 458 $state{handle}->on_eof (sub {
375 %state = (); 459 %state = ();
376 $cb->(undef, { Status => 599, Reason => "unexpected end-of-file", URL => $url }); 460 $cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", URL => $url });
377 }); 461 });
378 462
379 $state{handle}->starttls ("connect") if $rscheme eq "https"; 463 $state{handle}->starttls ("connect") if $rscheme eq "https";
380 464
381 # handle actual, non-tunneled, request 465 # handle actual, non-tunneled, request
… …
393 %hdr = (); # reduce memory usage, save a kitten 477 %hdr = (); # reduce memory usage, save a kitten
394 478
395 # status line 479 # status line
396 $state{handle}->push_read (line => $qr_nl, sub { 480 $state{handle}->push_read (line => $qr_nl, sub {
397 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix 481 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
398 or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])", URL => $url })); 482 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", URL => $url }));
399 483
400 my %hdr = ( # response headers 484 my %hdr = ( # response headers
401 HTTPVersion => ",$1", 485 HTTPVersion => ",$1",
402 Status => ",$2", 486 Status => ",$2",
403 Reason => ",$3", 487 Reason => ",$3",
… …
407 # headers, could be optimized a bit 491 # headers, could be optimized a bit
408 $state{handle}->unshift_read (line => $qr_nlnl, sub { 492 $state{handle}->unshift_read (line => $qr_nlnl, sub {
409 for ("$_[1]\012") { 493 for ("$_[1]\012") {
410 y/\015//d; # weed out any \015, as they show up in the weirdest of places. 494 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
411 495
412 # we support spaces in field names, as lotus domino 496 # things seen, not parsed:
413 # creates them (actually spaces around seperators 497 # p3pP="NON CUR OTPi OUR NOR UNI"
414 # are strictly allowed in http, they are a security issue). 498
415 $hdr{lc $1} .= ",$2" 499 $hdr{lc $1} .= ",$2"
416 while /\G 500 while /\G
417 ([^:\000-\037]+): 501 ([^:\000-\037]*):
418 [\011\040]* 502 [\011\040]*
419 ((?: [^\012]+ | \012[\011\040] )*) 503 ((?: [^\012]+ | \012[\011\040] )*)
420 \012 504 \012
421 /gxc; 505 /gxc;
422 506
423 /\G$/ 507 /\G$/
424 or return (%state = (), $cb->(undef, { Status => 599, Reason => "garbled response headers", URL => $url })); 508 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", URL => $url }));
425 } 509 }
426 510
427 substr $_, 0, 1, "" 511 substr $_, 0, 1, ""
428 for values %hdr; 512 for values %hdr;
429 513
514 # redirect handling
515 # microsoft and other shitheads don't give a shit for following standards,
516 # try to support some common forms of broken Location headers.
517 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
518 $hdr{location} =~ s/^\.\/+//;
519
520 my $url = "$rscheme://$uhost:$uport";
521
522 unless ($hdr{location} =~ s/^\///) {
523 $url .= $upath;
524 $url =~ s/\/[^\/]*$//;
525 }
526
527 $hdr{location} = "$url/$hdr{location}";
528 }
529
530 my $redirect;
531
532 if ($recurse) {
533 if ($hdr{Status} =~ /^30[12]$/ && $method ne "POST") {
534 # apparently, mozilla et al. just change POST to GET here
535 # more research is needed before we do the same
536 $redirect = 1;
537 } elsif ($hdr{Status} == 303) {
538 # even http/1.1 is unclear on how to mutate the method
539 $method = "GET" unless $method eq "HEAD";
540 $redirect = 1;
541 } elsif ($hdr{Status} == 307 && $method =~ /^(?:GET|HEAD)$/) {
542 $redirect = 1;
543 }
544 }
545
430 my $finish = sub { 546 my $finish = sub {
431 $state{handle}->destroy; 547 $state{handle}->destroy if $state{handle};
432 %state = (); 548 %state = ();
433 549
434 # set-cookie processing 550 # set-cookie processing
435 if ($arg{cookie_jar}) { 551 if ($arg{cookie_jar}) {
436 for ($hdr{"set-cookie"}) { 552 for ($_[1]{"set-cookie"}) {
437 # parse NAME=VALUE 553 # parse NAME=VALUE
438 my @kv; 554 my @kv;
439 555
440 while (/\G\s* ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )/gcxs) { 556 while (/\G\s* ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )/gcxs) {
441 my $name = $1; 557 my $name = $1;
… …
479 595
480 redo if /\G\s*,/gc; 596 redo if /\G\s*,/gc;
481 } 597 }
482 } 598 }
483 599
484 # microsoft and other shitheads don't give a shit for following standards, 600 if ($redirect) {
485 # try to support some common forms of broken Location headers. 601 # we ignore any errors, as it is very common to receive
486 if ($_[1]{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) { 602 # Content-Length != 0 but no actual body
487 $_[1]{location} =~ s/^\.\/+//; 603 # we also access %hdr, as $_[1] might be an erro
488
489 my $url = "$rscheme://$uhost:$uport";
490
491 unless ($_[1]{location} =~ s/^\///) {
492 $url .= $upath;
493 $url =~ s/\/[^\/]*$//;
494 }
495
496 $_[1]{location} = "$url/$_[1]{location}";
497 }
498
499 if ($_[1]{Status} =~ /^30[12]$/ && $recurse && $method ne "POST") {
500 # apparently, mozilla et al. just change POST to GET here
501 # more research is needed before we do the same
502 http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
503 } elsif ($_[1]{Status} == 303 && $recurse) {
504 # even http/1.1 is unclear on how to mutate the method
505 $method = "GET" unless $method eq "HEAD";
506 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb); 604 http_request ($method => $hdr{location}, %arg, recurse => $recurse - 1, $cb);
507 } elsif ($_[1]{Status} == 307 && $recurse && $method =~ /^(?:GET|HEAD)$/) {
508 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
509 } else { 605 } else {
510 $cb->($_[0], $_[1]); 606 $cb->($_[0], $_[1]);
511 } 607 }
512 }; 608 };
513 609
514 if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") { 610 my $len = $hdr{"content-length"};
611
612 if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) {
613 $finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", URL => $url });
614 } elsif (
615 $hdr{Status} =~ /^(?:1..|[23]04)$/
616 or $method eq "HEAD"
617 or (defined $len && !$len)
618 ) {
619 # no body
515 $finish->(undef, \%hdr); 620 $finish->("", \%hdr);
516 } else { 621 } else {
517 if (exists $hdr{"content-length"}) { 622 # body handling, four different code paths
518 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub { 623 # for want_body_handle, on_body (2x), normal (2x)
519 # could cache persistent connection now 624 # we might read too much here, but it does not matter yet (no pers. connections)
520 if ($hdr{connection} =~ /\bkeep-alive\b/i) { 625 if (!$redirect && $arg{want_body_handle}) {
521 # but we don't, due to misdesigns, this is annoyingly complex 626 $_[0]->on_eof (undef);
627 $_[0]->on_error (undef);
628 $_[0]->on_read (undef);
629
630 $finish->(delete $state{handle}, \%hdr);
631
632 } elsif ($arg{on_body}) {
633 $_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
634 if ($len) {
635 $_[0]->on_eof (undef);
636 $_[0]->on_read (sub {
637 $len -= length $_[0]{rbuf};
638
639 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
640 or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
641
642 $len > 0
643 or $finish->("", \%hdr);
522 }; 644 });
523 645 } else {
646 $_[0]->on_eof (sub {
524 $finish->($_[1], \%hdr); 647 $finish->("", \%hdr);
648 });
649 $_[0]->on_read (sub {
650 $arg{on_body}(delete $_[0]{rbuf}, \%hdr)
651 or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", URL => $url });
652 });
525 }); 653 }
526 } else { 654 } else {
527 # too bad, need to read until we get an error or EOF,
528 # no way to detect winged data.
529 $_[0]->on_error (sub {
530 # delete ought to be more efficient, as we would have to make
531 # a copy otherwise as $_[0] gets destroyed.
532 $finish->(delete $_[0]{rbuf}, \%hdr);
533 });
534 $_[0]->on_eof (undef); 655 $_[0]->on_eof (undef);
656
657 if ($len) {
658 $_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], URL => $url }) });
659 $_[0]->on_read (sub {
660 $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr)
661 if $len <= length $_[0]{rbuf};
662 });
663 } else {
664 $_[0]->on_error (sub {
665 $! == Errno::EPIPE || !$!
666 ? $finish->(delete $_[0]{rbuf}, \%hdr)
667 : $finish->(undef, { Status => 599, Reason => $_[2], URL => $url });
668 });
535 $_[0]->on_read (sub { }); 669 $_[0]->on_read (sub { });
670 }
536 } 671 }
537 } 672 }
538 }); 673 });
539 }); 674 });
540 }; 675 };
… …
545 680
546 # maybe re-use $uauthority with patched port? 681 # maybe re-use $uauthority with patched port?
547 $state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012"); 682 $state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
548 $state{handle}->push_read (line => $qr_nlnl, sub { 683 $state{handle}->push_read (line => $qr_nlnl, sub {
549 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix 684 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
550 or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid proxy connect response ($_[1])", URL => $url })); 685 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", URL => $url }));
551 686
552 if ($2 == 200) { 687 if ($2 == 200) {
553 $rpath = $upath; 688 $rpath = $upath;
554 &$handle_actual_request; 689 &$handle_actual_request;
555 } else { 690 } else {
… …
601The default value for the C<recurse> request parameter (default: C<10>). 736The default value for the C<recurse> request parameter (default: C<10>).
602 737
603=item $AnyEvent::HTTP::USERAGENT 738=item $AnyEvent::HTTP::USERAGENT
604 739
605The default value for the C<User-Agent> header (the default is 740The default value for the C<User-Agent> header (the default is
606C<Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>). 741C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>).
607 742
608=item $AnyEvent::HTTP::MAX_PERSISTENT 743=item $AnyEvent::HTTP::MAX_PER_HOST
609 744
610The maximum number of persistent connections to keep open (default: 8). 745The maximum number of concurrent conenctions to the same host (identified
746by the hostname). If the limit is exceeded, then the additional requests
747are queued until previous connections are closed.
611 748
612Not implemented currently. 749The default value for this is C<4>, and it is highly advisable to not
613 750increase it.
614=item $AnyEvent::HTTP::PERSISTENT_TIMEOUT
615
616The maximum time to cache a persistent connection, in seconds (default: 2).
617
618Not implemented currently.
619 751
620=item $AnyEvent::HTTP::ACTIVE 752=item $AnyEvent::HTTP::ACTIVE
621 753
622The number of active connections. This is not the number of currently 754The number of active connections. This is not the number of currently
623running requests, but the number of currently open and non-idle TCP 755running requests, but the number of currently open and non-idle TCP

Diff Legend

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