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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.29 by root, Wed Oct 22 23:28:11 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) {
365 if ($chost =~ /^\./) {
295 next unless $chost eq substr $uhost, -length $chost; 366 next unless $chost eq substr $uhost, -length $chost;
296 next unless $chost =~ /^\./; 367 } elsif ($chost =~ /\./) {
368 next unless $chost eq $uhost;
369 } else {
370 next;
371 }
297 372
298 while (my ($cpath, $v) = each %$v) { 373 while (my ($cpath, $v) = each %$v) {
299 next unless $cpath eq substr $upath, 0, length $cpath; 374 next unless $cpath eq substr $upath, 0, length $cpath;
300 375
301 while (my ($k, $v) = each %$v) { 376 while (my ($k, $v) = each %$v) {
302 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;
303 push @cookie, "$k=$v->{value}"; 380 push @cookie, "$k=\"$value\"";
304 } 381 }
305 } 382 }
306 } 383 }
307 384
308 $hdr{cookie} = join "; ", @cookie 385 $hdr{cookie} = join "; ", @cookie
309 if @cookie; 386 if @cookie;
310 } 387 }
311 388
312 my ($rhost, $rport, $rpath); # request host, port, path 389 my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
313 390
314 if ($proxy) { 391 if ($proxy) {
315 ($rhost, $rport, $scheme) = @$proxy; 392 ($rpath, $rhost, $rport, $rscheme) = ($url, @$proxy);
316 $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" && $rscheme eq "https";
317 } else { 397 } else {
318 ($rhost, $rport, $rpath) = ($uhost, $uport, $upath); 398 ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
319 $hdr{host} = $uhost;
320 } 399 }
321 400
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";
322 $hdr{"content-length"} = length $arg{body}; 405 $hdr{"content-length"} = length $arg{body};
323 406
324 my %state = (connect_guard => 1); 407 my %state = (connect_guard => 1);
325 408
326 _get_slot $uhost, sub { 409 _get_slot $uhost, sub {
… …
328 411
329 return unless $state{connect_guard}; 412 return unless $state{connect_guard};
330 413
331 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub { 414 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {
332 $state{fh} = shift 415 $state{fh} = shift
333 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
334 418
335 delete $state{connect_guard}; # reduce memory usage, save a tree 419 return unless delete $state{connect_guard};
336 420
337 # get handle 421 # get handle
338 $state{handle} = new AnyEvent::Handle 422 $state{handle} = new AnyEvent::Handle
339 fh => $state{fh}, 423 fh => $state{fh},
340 ($scheme eq "https" ? (tls => "connect") : ()); 424 timeout => $timeout,
425 peername => $rhost,
426 tls_ctx => $arg{tls_ctx};
341 427
342 # limit the number of persistent connections 428 # limit the number of persistent connections
429 # keepalive not yet supported
343 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { 430 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
344 ++$KA_COUNT{$_[1]}; 431 ++$KA_COUNT{$_[1]};
345 $state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} }; 432 $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
433 --$KA_COUNT{$_[1]}
434 };
346 $hdr{connection} = "keep-alive"; 435 $hdr{connection} = "keep-alive";
347 delete $hdr{connection}; # keep-alive not yet supported
348 } else { 436 } else {
349 delete $hdr{connection}; 437 delete $hdr{connection};
350 } 438 }
351 439
352 # (re-)configure handle 440 # (re-)configure handle
353 $state{handle}->timeout ($timeout);
354 $state{handle}->on_error (sub { 441 $state{handle}->on_error (sub {
355 my $errno = "$!";
356 %state = (); 442 %state = ();
357 $cb->(undef, { Status => 599, Reason => $errno, URL => $url }); 443 $cb->(undef, { Status => 599, Reason => $_[2], URL => $url });
358 }); 444 });
359 $state{handle}->on_eof (sub { 445 $state{handle}->on_eof (sub {
360 %state = (); 446 %state = ();
361 $cb->(undef, { Status => 599, Reason => "unexpected end-of-file", URL => $url }); 447 $cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", URL => $url });
362 }); 448 });
363 449
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
364 # send request 456 # send request
365 $state{handle}->push_write ( 457 $state{handle}->push_write (
366 "$method $rpath HTTP/1.0\015\012" 458 "$method $rpath HTTP/1.0\015\012"
367 . (join "", map "$_: $hdr{$_}\015\012", keys %hdr) 459 . (join "", map "\u$_: $hdr{$_}\015\012", keys %hdr)
368 . "\015\012" 460 . "\015\012"
369 . (delete $arg{body}) 461 . (delete $arg{body})
370 );
371
372 %hdr = (); # reduce memory usage, save a kitten
373
374 # status line
375 $state{handle}->push_read (line => qr/\015?\012/, sub {
376 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
377 or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])", URL => $url }));
378
379 my %hdr = ( # response headers
380 HTTPVersion => "\x00$1",
381 Status => "\x00$2",
382 Reason => "\x00$3",
383 URL => "\x00$url"
384 ); 462 );
385 463
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
386 # headers, could be optimized a bit 478 # headers, could be optimized a bit
387 $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub { 479 $state{handle}->unshift_read (line => $qr_nlnl, sub {
388 for ("$_[1]\012") { 480 for ("$_[1]\012") {
389 # 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.
390 # creates them. 482
483 # things seen, not parsed:
484 # p3pP="NON CUR OTPi OUR NOR UNI"
485
391 $hdr{lc $1} .= "\x00$2" 486 $hdr{lc $1} .= ",$2"
392 while /\G 487 while /\G
393 ([^:\000-\037]+): 488 ([^:\000-\037]+):
394 [\011\040]* 489 [\011\040]*
395 ((?: [^\015\012]+ | \015?\012[\011\040] )*) 490 ((?: [^\012]+ | \012[\011\040] )*)
396 \015?\012 491 \012
397 /gxc; 492 /gxc;
398 493
399 /\G$/ 494 /\G$/
400 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 }));
401 }
402
403 substr $_, 0, 1, ""
404 for values %hdr;
405
406 my $finish = sub {
407 %state = ();
408
409 # set-cookie processing
410 if ($arg{cookie_jar} && exists $hdr{"set-cookie"}) {
411 for (split /\x00/, $hdr{"set-cookie"}) {
412 my ($cookie, @arg) = split /;\s*/;
413 my ($name, $value) = split /=/, $cookie, 2;
414 my %kv = (value => $value, map { split /=/, $_, 2 } @arg);
415
416 my $cdom = (delete $kv{domain}) || $uhost;
417 my $cpath = (delete $kv{path}) || "/";
418
419 $cdom =~ s/^\.?/./; # make sure it starts with a "."
420
421 next if $cdom =~ /\.$/;
422
423 # this is not rfc-like and not netscape-like. go figure.
424 my $ndots = $cdom =~ y/.//;
425 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
426
427 # store it
428 $arg{cookie_jar}{version} = 1;
429 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
430 }
431 } 496 }
432 497
498 substr $_, 0, 1, ""
499 for values %hdr;
500
501 # redirect handling
433 # microsoft and other shitheads don't give a shit for following standards, 502 # microsoft and other shitheads don't give a shit for following standards,
434 # try to support some common forms of broken Location headers. 503 # try to support some common forms of broken Location headers.
435 if ($_[1]{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) { 504 if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
436 $_[1]{location} =~ s/^\.\/+//; 505 $hdr{location} =~ s/^\.\/+//;
437 506
438 my $url = "$scheme://$uhost:$uport"; 507 my $url = "$rscheme://$uhost:$uport";
439 508
440 unless ($_[1]{location} =~ s/^\///) { 509 unless ($hdr{location} =~ s/^\///) {
441 $url .= $upath; 510 $url .= $upath;
442 $url =~ s/\/[^\/]*$//; 511 $url =~ s/\/[^\/]*$//;
443 } 512 }
444 513
445 $_[1]{location} = "$url/$_[1]{location}"; 514 $hdr{location} = "$url/$hdr{location}";
446 } 515 }
447 516
517 my $redirect;
518
519 if ($recurse) {
448 if ($_[1]{Status} =~ /^30[12]$/ && $recurse && $method ne "POST") { 520 if ($hdr{Status} =~ /^30[12]$/ && $method ne "POST") {
449 # apparently, mozilla et al. just change POST to GET here 521 # apparently, mozilla et al. just change POST to GET here
450 # more research is needed before we do the same 522 # more research is needed before we do the same
451 http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb); 523 $redirect = 1;
452 } elsif ($_[1]{Status} == 303 && $recurse) { 524 } elsif ($hdr{Status} == 303) {
453 # even http/1.1 is unlear on how to mutate the method 525 # even http/1.1 is unclear on how to mutate the method
454 $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 $_[1] might be an erro
455 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb); 591 http_request ($method => $hdr{location}, %arg, recurse => $recurse - 1, $cb);
456 } elsif ($_[1]{Status} == 307 && $recurse && $method =~ /^(?:GET|HEAD)$/) { 592 } else {
457 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);
458 } else { 608 } else {
459 $cb->($_[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 $_[0]->on_read (sub { });
657 }
658 }
460 } 659 }
461 }; 660 });
661 });
662 };
462 663
463 if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") { 664 # now handle proxy-CONNECT method
464 $finish->(undef, \%hdr); 665 if ($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;
465 } else { 677 } else {
466 if (exists $hdr{"content-length"}) { 678 %state = ();
467 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub { 679 $cb->(undef, { Status => $2, Reason => $3, URL => $url });
468 # could cache persistent connection now
469 if ($hdr{connection} =~ /\bkeep-alive\b/i) {
470 # but we don't, due to misdesigns, this is annoyingly complex
471 };
472
473 $finish->($_[1], \%hdr);
474 });
475 } else {
476 # too bad, need to read until we get an error or EOF,
477 # no way to detect winged data.
478 $_[0]->on_error (sub {
479 $finish->($_[0]{rbuf}, \%hdr);
480 });
481 $_[0]->on_eof (undef);
482 $_[0]->on_read (sub { });
483 }
484 } 680 }
485 }); 681 });
682 } else {
683 &$handle_actual_request;
486 }); 684 }
685
487 }, sub { 686 }, sub {
488 $timeout 687 $timeout
489 }; 688 };
490 }; 689 };
491 690
… …
524The default value for the C<recurse> request parameter (default: C<10>). 723The default value for the C<recurse> request parameter (default: C<10>).
525 724
526=item $AnyEvent::HTTP::USERAGENT 725=item $AnyEvent::HTTP::USERAGENT
527 726
528The default value for the C<User-Agent> header (the default is 727The default value for the C<User-Agent> header (the default is
529C<Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>). 728C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>).
530 729
531=item $AnyEvent::HTTP::MAX_PERSISTENT 730=item $AnyEvent::HTTP::MAX_PERSISTENT
532 731
533The maximum number of persistent connections to keep open (default: 8). 732The maximum number of persistent connections to keep open (default: 8).
534 733
… …
564=head1 AUTHOR 763=head1 AUTHOR
565 764
566 Marc Lehmann <schmorp@schmorp.de> 765 Marc Lehmann <schmorp@schmorp.de>
567 http://home.schmorp.de/ 766 http://home.schmorp.de/
568 767
768With many thanks to Дмитрий Шалашов, who provided countless
769testcases and bugreports.
770
569=cut 771=cut
570 772
5711 7731
572 774

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