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Comparing AnyEvent-HTTP/HTTP.pm (file contents):
Revision 1.28 by root, Mon Sep 29 13:50:39 2008 UTC vs.
Revision 1.40 by root, Sun Jul 5 01:45:01 2009 UTC

… …
41use strict; 41use strict;
42no warnings; 42no warnings;
43 43
44use Carp; 44use Carp;
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
… …
71my %CO_SLOT; # number of open connections, and wait queue, per host 71my %CO_SLOT; # number of open connections, and wait queue, per host
72 72
73=item http_get $url, key => value..., $cb->($data, $headers) 73=item http_get $url, key => value..., $cb->($data, $headers)
74 74
75Executes an HTTP-GET request. See the http_request function for details on 75Executes an HTTP-GET request. See the http_request function for details on
76additional parameters. 76additional parameters and the return value.
77 77
78=item http_head $url, key => value..., $cb->($data, $headers) 78=item http_head $url, key => value..., $cb->($data, $headers)
79 79
80Executes an HTTP-HEAD request. See the http_request function for details on 80Executes an HTTP-HEAD request. See the http_request function for details
81additional parameters. 81on additional parameters and the return value.
82 82
83=item http_post $url, $body, key => value..., $cb->($data, $headers) 83=item http_post $url, $body, key => value..., $cb->($data, $headers)
84 84
85Executes an HTTP-POST request with a request body of C<$body>. See the 85Executes an HTTP-POST request with a request body of C<$body>. See the
86http_request function for details on additional parameters. 86http_request function for details on additional parameters and the return
87value.
87 88
88=item http_request $method => $url, key => value..., $cb->($data, $headers) 89=item http_request $method => $url, key => value..., $cb->($data, $headers)
89 90
90Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL 91Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL
91must be an absolute http or https URL. 92must be an absolute http or https URL.
93
94When called in void context, nothing is returned. In other contexts,
95C<http_request> returns a "cancellation guard" - you have to keep the
96object at least alive until the callback get called. If the object gets
97destroyed before the callbakc is called, the request will be cancelled.
92 98
93The callback will be called with the response data as first argument 99The callback will be called with the response data as first argument
94(or C<undef> if it wasn't available due to errors), and a hash-ref with 100(or C<undef> if it wasn't available due to errors), and a hash-ref with
95response headers as second argument. 101response headers as second argument.
96 102
… …
98headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason> 104headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason>
99contain the three parts of the HTTP Status-Line of the same name. The 105contain the three parts of the HTTP Status-Line of the same name. The
100pseudo-header C<URL> contains the original URL (which can differ from the 106pseudo-header C<URL> contains the original URL (which can differ from the
101requested URL when following redirects). 107requested URL when following redirects).
102 108
103If the server sends a header multiple lines, then their contents will be 109If the server sends a header multiple times, then their contents will be
104joined together with C<\x00>. 110joined together with a comma (C<,>), as per the HTTP spec.
105 111
106If an internal error occurs, such as not being able to resolve a hostname, 112If an internal error occurs, such as not being able to resolve a hostname,
107then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<599> 113then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<599>
108and the C<Reason> pseudo-header will contain an error message. 114and the C<Reason> pseudo-header will contain an error message.
109 115
… …
159based on the original netscape specification. 165based on the original netscape specification.
160 166
161The C<$hash_ref> must be an (initially empty) hash reference which will 167The C<$hash_ref> must be an (initially empty) hash reference which will
162get updated automatically. It is possible to save the cookie_jar to 168get updated automatically. It is possible to save the cookie_jar to
163persistent storage with something like JSON or Storable, but this is not 169persistent storage with something like JSON or Storable, but this is not
164recommended, as expire times are currently being ignored. 170recommended, as expiry times are currently being ignored.
165 171
166Note that this cookie implementation is not of very high quality, nor 172Note that this cookie implementation is not of very high quality, nor
167meant to be complete. If you want complete cookie management you have to 173meant to be complete. If you want complete cookie management you have to
168do that on your own. C<cookie_jar> is meant as a quick fix to get some 174do that on your own. C<cookie_jar> is meant as a quick fix to get some
169cookie-using sites working. Cookies are a privacy disaster, do not use 175cookie-using sites working. Cookies are a privacy disaster, do not use
170them unless required to. 176them unless required to.
177
178=item tls_ctx => $scheme | $tls_ctx
179
180Specifies the AnyEvent::TLS context to be used for https connections. This
181parameter follows the same rules as the C<tls_ctx> parameter to
182L<AnyEvent::Handle>, but additionally, the two strings C<low> or
183C<high> can be specified, which give you a predefined low-security (no
184verification, highest compatibility) and high-security (CA and common-name
185verification) TLS context.
186
187The default for this option is C<low>, which could be interpreted as "give
188me the page, no matter what".
171 189
172=back 190=back
173 191
174Example: make a simple HTTP GET request for http://www.nethype.de/ 192Example: make a simple HTTP GET request for http://www.nethype.de/
175 193
… …
188 my ($body, $hdr) = @_; 206 my ($body, $hdr) = @_;
189 use Data::Dumper; 207 use Data::Dumper;
190 print Dumper $hdr; 208 print Dumper $hdr;
191 } 209 }
192 ; 210 ;
211
212Example: make another simple HTTP GET request, but immediately try to
213cancel it.
214
215 my $request = http_request GET => "http://www.nethype.de/", sub {
216 my ($body, $hdr) = @_;
217 print "$body\n";
218 };
219
220 undef $request;
193 221
194=cut 222=cut
195 223
196sub _slot_schedule; 224sub _slot_schedule;
197sub _slot_schedule($) { 225sub _slot_schedule($) {
… …
221 push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; 249 push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
222 250
223 _slot_schedule $_[0]; 251 _slot_schedule $_[0];
224} 252}
225 253
254our $qr_nl = qr<\015?\012>;
255our $qr_nlnl = qr<\015?\012\015?\012>;
256
257our $TLS_CTX_LOW = { cache => 1, dh => undef, sslv2 => 1 };
258our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_cn => "https", dh => "skip4096" };
259
226sub http_request($$@) { 260sub http_request($$@) {
227 my $cb = pop; 261 my $cb = pop;
228 my ($method, $url, %arg) = @_; 262 my ($method, $url, %arg) = @_;
229 263
230 my %hdr; 264 my %hdr;
265
266 $arg{tls_ctx} = $TLS_CTX_LOW if $arg{tls_ctx} eq "low" || !exists $arg{tls_ctx};
267 $arg{tls_ctx} = $TLS_CTX_HIGH if $arg{tls_ctx} eq "high";
231 268
232 $method = uc $method; 269 $method = uc $method;
233 270
234 if (my $hdr = $arg{headers}) { 271 if (my $hdr = $arg{headers}) {
235 while (my ($k, $v) = each %$hdr) { 272 while (my ($k, $v) = each %$hdr) {
… …
237 } 274 }
238 } 275 }
239 276
240 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE; 277 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
241 278
242 return $cb->(undef, { Status => 599, Reason => "recursion limit reached", URL => $url }) 279 return $cb->(undef, { Status => 599, Reason => "Too many redirections", URL => $url })
243 if $recurse < 0; 280 if $recurse < 0;
244 281
245 my $proxy = $arg{proxy} || $PROXY; 282 my $proxy = $arg{proxy} || $PROXY;
246 my $timeout = $arg{timeout} || $TIMEOUT; 283 my $timeout = $arg{timeout} || $TIMEOUT;
247 284
248 $hdr{"user-agent"} ||= $USERAGENT; 285 $hdr{"user-agent"} ||= $USERAGENT;
249 286
250 my ($scheme, $authority, $upath, $query, $fragment) = 287 my ($uscheme, $uauthority, $upath, $query, $fragment) =
251 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|; 288 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|;
252 289
253 $scheme = lc $scheme; 290 $uscheme = lc $uscheme;
254 291
255 my $uport = $scheme eq "http" ? 80 292 my $uport = $uscheme eq "http" ? 80
256 : $scheme eq "https" ? 443 293 : $uscheme eq "https" ? 443
257 : return $cb->(undef, { Status => 599, Reason => "only http and https URL schemes supported", URL => $url }); 294 : return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported (not '$uscheme')", URL => $url });
258 295
259 $hdr{referer} ||= "$scheme://$authority$upath"; # leave out fragment and query string, just a heuristic 296 $hdr{referer} ||= "$uscheme://$uauthority$upath"; # leave out fragment and query string, just a heuristic
260 297
261 $authority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x 298 $uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
262 or return $cb->(undef, { Status => 599, Reason => "unparsable URL", URL => $url }); 299 or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", URL => $url });
263 300
264 my $uhost = $1; 301 my $uhost = $1;
265 $uport = $2 if defined $2; 302 $uport = $2 if defined $2;
266 303
267 $uhost =~ s/^\[(.*)\]$/$1/; 304 $uhost =~ s/^\[(.*)\]$/$1/;
… …
269 306
270 $upath =~ s%^/?%/%; 307 $upath =~ s%^/?%/%;
271 308
272 # cookie processing 309 # cookie processing
273 if (my $jar = $arg{cookie_jar}) { 310 if (my $jar = $arg{cookie_jar}) {
274 %$jar = () if $jar->{version} < 1; 311 %$jar = () if $jar->{version} != 1;
275 312
276 my @cookie; 313 my @cookie;
277 314
278 while (my ($chost, $v) = each %$jar) { 315 while (my ($chost, $v) = each %$jar) {
316 if ($chost =~ /^\./) {
279 next unless $chost eq substr $uhost, -length $chost; 317 next unless $chost eq substr $uhost, -length $chost;
280 next unless $chost =~ /^\./; 318 } elsif ($chost =~ /\./) {
319 next unless $chost eq $uhost;
320 } else {
321 next;
322 }
281 323
282 while (my ($cpath, $v) = each %$v) { 324 while (my ($cpath, $v) = each %$v) {
283 next unless $cpath eq substr $upath, 0, length $cpath; 325 next unless $cpath eq substr $upath, 0, length $cpath;
284 326
285 while (my ($k, $v) = each %$v) { 327 while (my ($k, $v) = each %$v) {
286 next if $scheme ne "https" && exists $v->{secure}; 328 next if $uscheme ne "https" && exists $v->{secure};
329 my $value = $v->{value};
330 $value =~ s/([\\"])/\\$1/g;
287 push @cookie, "$k=$v->{value}"; 331 push @cookie, "$k=\"$value\"";
288 } 332 }
289 } 333 }
290 } 334 }
291 335
292 $hdr{cookie} = join "; ", @cookie 336 $hdr{cookie} = join "; ", @cookie
293 if @cookie; 337 if @cookie;
294 } 338 }
295 339
296 my ($rhost, $rport, $rpath); # request host, port, path 340 my ($rhost, $rport, $rscheme, $rpath); # request host, port, path
297 341
298 if ($proxy) { 342 if ($proxy) {
299 ($rhost, $rport, $scheme) = @$proxy; 343 ($rpath, $rhost, $rport, $rscheme) = ($url, @$proxy);
300 $rpath = $url; 344
345 # don't support https requests over https-proxy transport,
346 # can't be done with tls as spec'ed, unless you double-encrypt.
347 $rscheme = "http" if $uscheme eq "https" && $rscheme eq "https";
301 } else { 348 } else {
302 ($rhost, $rport, $rpath) = ($uhost, $uport, $upath); 349 ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath);
303 $hdr{host} = $uhost;
304 } 350 }
305 351
352 $hdr{host} = $uhost;
306 $hdr{"content-length"} = length $arg{body}; 353 $hdr{"content-length"} = length $arg{body};
307 354
308 my %state = (connect_guard => 1); 355 my %state = (connect_guard => 1);
309 356
310 _get_slot $uhost, sub { 357 _get_slot $uhost, sub {
… …
312 359
313 return unless $state{connect_guard}; 360 return unless $state{connect_guard};
314 361
315 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub { 362 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {
316 $state{fh} = shift 363 $state{fh} = shift
317 or return $cb->(undef, { Status => 599, Reason => "$!", URL => $url }); 364 or return (%state = (), $cb->(undef, { Status => 599, Reason => "$!", URL => $url }));
365 pop; # free memory, save a tree
318 366
319 delete $state{connect_guard}; # reduce memory usage, save a tree 367 return unless delete $state{connect_guard};
320 368
321 # get handle 369 # get handle
322 $state{handle} = new AnyEvent::Handle 370 $state{handle} = new AnyEvent::Handle
323 fh => $state{fh}, 371 fh => $state{fh},
324 ($scheme eq "https" ? (tls => "connect") : ()); 372 timeout => $timeout,
373 peername => $rhost,
374 tls_ctx => $arg{tls_ctx};
325 375
326 # limit the number of persistent connections 376 # limit the number of persistent connections
377 # keepalive not yet supported
327 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { 378 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
328 ++$KA_COUNT{$_[1]}; 379 ++$KA_COUNT{$_[1]};
329 $state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} }; 380 $state{handle}{ka_count_guard} = AnyEvent::Util::guard {
381 --$KA_COUNT{$_[1]}
382 };
330 $hdr{connection} = "keep-alive"; 383 $hdr{connection} = "keep-alive";
331 delete $hdr{connection}; # keep-alive not yet supported
332 } else { 384 } else {
333 delete $hdr{connection}; 385 delete $hdr{connection};
334 } 386 }
335 387
336 # (re-)configure handle 388 # (re-)configure handle
337 $state{handle}->timeout ($timeout);
338 $state{handle}->on_error (sub { 389 $state{handle}->on_error (sub {
339 my $errno = "$!";
340 %state = (); 390 %state = ();
341 $cb->(undef, { Status => 599, Reason => $errno, URL => $url }); 391 $cb->(undef, { Status => 599, Reason => $_[2], URL => $url });
342 }); 392 });
343 $state{handle}->on_eof (sub { 393 $state{handle}->on_eof (sub {
344 %state = (); 394 %state = ();
345 $cb->(undef, { Status => 599, Reason => "unexpected end-of-file", URL => $url }); 395 $cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", URL => $url });
346 }); 396 });
347 397
398 $state{handle}->starttls ("connect") if $rscheme eq "https";
399
400 # handle actual, non-tunneled, request
401 my $handle_actual_request = sub {
402 $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls};
403
348 # send request 404 # send request
349 $state{handle}->push_write ( 405 $state{handle}->push_write (
350 "$method $rpath HTTP/1.0\015\012" 406 "$method $rpath HTTP/1.0\015\012"
351 . (join "", map "$_: $hdr{$_}\015\012", keys %hdr) 407 . (join "", map "\u$_: $hdr{$_}\015\012", keys %hdr)
352 . "\015\012" 408 . "\015\012"
353 . (delete $arg{body}) 409 . (delete $arg{body})
354 );
355
356 %hdr = (); # reduce memory usage, save a kitten
357
358 # status line
359 $state{handle}->push_read (line => qr/\015?\012/, sub {
360 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
361 or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])", URL => $url }));
362
363 my %hdr = ( # response headers
364 HTTPVersion => "\x00$1",
365 Status => "\x00$2",
366 Reason => "\x00$3",
367 URL => "\x00$url"
368 ); 410 );
369 411
412 %hdr = (); # reduce memory usage, save a kitten
413
414 # status line
415 $state{handle}->push_read (line => $qr_nl, sub {
416 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
417 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response ($_[1])", URL => $url }));
418
419 my %hdr = ( # response headers
420 HTTPVersion => ",$1",
421 Status => ",$2",
422 Reason => ",$3",
423 URL => ",$url"
424 );
425
370 # headers, could be optimized a bit 426 # headers, could be optimized a bit
371 $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub { 427 $state{handle}->unshift_read (line => $qr_nlnl, sub {
372 for ("$_[1]\012") { 428 for ("$_[1]\012") {
373 # we support spaces in field names, as lotus domino 429 y/\015//d; # weed out any \015, as they show up in the weirdest of places.
374 # creates them. 430
431 # things seen, not parsed:
432 # p3pP="NON CUR OTPi OUR NOR UNI"
433
375 $hdr{lc $1} .= "\x00$2" 434 $hdr{lc $1} .= ",$2"
376 while /\G 435 while /\G
377 ([^:\000-\037]+): 436 ([^:\000-\037]+):
378 [\011\040]* 437 [\011\040]*
379 ((?: [^\015\012]+ | \015?\012[\011\040] )*) 438 ((?: [^\012]+ | \012[\011\040] )*)
380 \015?\012 439 \012
381 /gxc; 440 /gxc;
382 441
383 /\G$/ 442 /\G$/
384 or return (%state = (), $cb->(undef, { Status => 599, Reason => "garbled response headers", URL => $url })); 443 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", URL => $url }));
385 } 444 }
386 445
387 substr $_, 0, 1, "" 446 substr $_, 0, 1, ""
388 for values %hdr; 447 for values %hdr;
389 448
390 my $finish = sub { 449 my $finish = sub {
450 $state{handle}->destroy;
391 %state = (); 451 %state = ();
392 452
393 # set-cookie processing 453 # set-cookie processing
394 if ($arg{cookie_jar} && exists $hdr{"set-cookie"}) { 454 if ($arg{cookie_jar}) {
395 for (split /\x00/, $hdr{"set-cookie"}) { 455 for ($hdr{"set-cookie"}) {
396 my ($cookie, @arg) = split /;\s*/; 456 # parse NAME=VALUE
397 my ($name, $value) = split /=/, $cookie, 2; 457 my @kv;
398 my %kv = (value => $value, map { split /=/, $_, 2 } @arg); 458
399 459 while (/\G\s* ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )/gcxs) {
400 my $cdom = (delete $kv{domain}) || $uhost; 460 my $name = $1;
461 my $value = $3;
462
463 unless ($value) {
464 $value = $2;
465 $value =~ s/\\(.)/$1/gs;
466 }
467
468 push @kv, $name => $value;
469
470 last unless /\G\s*;/gc;
471 }
472
473 last unless @kv;
474
475 my $name = shift @kv;
476 my %kv = (value => shift @kv, @kv);
477
478 my $cdom;
401 my $cpath = (delete $kv{path}) || "/"; 479 my $cpath = (delete $kv{path}) || "/";
402 480
481 if (exists $kv{domain}) {
482 $cdom = delete $kv{domain};
483
403 $cdom =~ s/^\.?/./; # make sure it starts with a "." 484 $cdom =~ s/^\.?/./; # make sure it starts with a "."
404 485
405 next if $cdom =~ /\.$/; 486 next if $cdom =~ /\.$/;
406 487
407 # this is not rfc-like and not netscape-like. go figure. 488 # this is not rfc-like and not netscape-like. go figure.
408 my $ndots = $cdom =~ y/.//; 489 my $ndots = $cdom =~ y/.//;
409 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2); 490 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
410 491 } else {
492 $cdom = $uhost;
493 }
494
411 # store it 495 # store it
412 $arg{cookie_jar}{version} = 1; 496 $arg{cookie_jar}{version} = 1;
413 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv; 497 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
498
499 redo if /\G\s*,/gc;
500 }
501 }
502
503 # microsoft and other shitheads don't give a shit for following standards,
504 # try to support some common forms of broken Location headers.
505 if ($_[1]{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
506 $_[1]{location} =~ s/^\.\/+//;
507
508 my $url = "$rscheme://$uhost:$uport";
509
510 unless ($_[1]{location} =~ s/^\///) {
511 $url .= $upath;
512 $url =~ s/\/[^\/]*$//;
513 }
514
515 $_[1]{location} = "$url/$_[1]{location}";
516 }
517
518 if ($_[1]{Status} =~ /^30[12]$/ && $recurse && $method ne "POST") {
519 # apparently, mozilla et al. just change POST to GET here
520 # more research is needed before we do the same
521 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
522 } elsif ($_[1]{Status} == 303 && $recurse) {
523 # even http/1.1 is unclear on how to mutate the method
524 $method = "GET" unless $method eq "HEAD";
525 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
526 } elsif ($_[1]{Status} == 307 && $recurse && $method =~ /^(?:GET|HEAD)$/) {
527 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
528 } else {
529 $cb->($_[0], $_[1]);
530 }
531 };
532
533 if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") {
534 $finish->(undef, \%hdr);
535 } else {
536 if (exists $hdr{"content-length"}) {
537 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub {
538 # could cache persistent connection now
539 if ($hdr{connection} =~ /\bkeep-alive\b/i) {
540 # but we don't, due to misdesigns, this is annoyingly complex
541 };
542
543 $finish->($_[1], \%hdr);
544 });
545 } else {
546 # too bad, need to read until we get an error or EOF,
547 # no way to detect winged data.
548 $_[0]->on_error (sub {
549 # delete ought to be more efficient, as we would have to make
550 # a copy otherwise as $_[0] gets destroyed.
551 $finish->(delete $_[0]{rbuf}, \%hdr);
552 });
553 $_[0]->on_eof (undef);
554 $_[0]->on_read (sub { });
414 } 555 }
415 } 556 }
416
417 # microsoft and other shitheads don't give a shit for following standards,
418 # try to support some common forms of broken Location headers.
419 if ($_[1]{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) {
420 $_[1]{location} =~ s/^\.\/+//;
421
422 my $url = "$scheme://$uhost:$uport";
423
424 unless ($_[1]{location} =~ s/^\///) {
425 $url .= $upath;
426 $url =~ s/\/[^\/]*$//;
427 }
428
429 $_[1]{location} = "$url/$_[1]{location}";
430 }
431
432 if ($_[1]{Status} =~ /^30[12]$/ && $recurse && $method ne "POST") {
433 # apparently, mozilla et al. just change POST to GET here
434 # more research is needed before we do the same
435 http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
436 } elsif ($_[1]{Status} == 303 && $recurse) {
437 # even http/1.1 is unlear on how to mutate the method
438 $method = "GET" unless $method eq "HEAD";
439 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
440 } elsif ($_[1]{Status} == 307 && $recurse && $method =~ /^(?:GET|HEAD)$/) {
441 http_request ($method => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
442 } else {
443 $cb->($_[0], $_[1]);
444 }
445 }; 557 });
558 });
559 };
446 560
447 if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") { 561 # now handle proxy-CONNECT method
448 $finish->(undef, \%hdr); 562 if ($proxy && $uscheme eq "https") {
563 # oh dear, we have to wrap it into a connect request
564
565 # maybe re-use $uauthority with patched port?
566 $state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012");
567 $state{handle}->push_read (line => $qr_nlnl, sub {
568 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix
569 or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", URL => $url }));
570
571 if ($2 == 200) {
572 $rpath = $upath;
573 &$handle_actual_request;
449 } else { 574 } else {
450 if (exists $hdr{"content-length"}) { 575 %state = ();
451 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub { 576 $cb->(undef, { Status => $2, Reason => $3, URL => $url });
452 # could cache persistent connection now
453 if ($hdr{connection} =~ /\bkeep-alive\b/i) {
454 # but we don't, due to misdesigns, this is annoyingly complex
455 };
456
457 $finish->($_[1], \%hdr);
458 });
459 } else {
460 # too bad, need to read until we get an error or EOF,
461 # no way to detect winged data.
462 $_[0]->on_error (sub {
463 $finish->($_[0]{rbuf}, \%hdr);
464 });
465 $_[0]->on_eof (undef);
466 $_[0]->on_read (sub { });
467 }
468 } 577 }
469 }); 578 });
579 } else {
580 &$handle_actual_request;
470 }); 581 }
582
471 }, sub { 583 }, sub {
472 $timeout 584 $timeout
473 }; 585 };
474 }; 586 };
475 587
… …
508The default value for the C<recurse> request parameter (default: C<10>). 620The default value for the C<recurse> request parameter (default: C<10>).
509 621
510=item $AnyEvent::HTTP::USERAGENT 622=item $AnyEvent::HTTP::USERAGENT
511 623
512The default value for the C<User-Agent> header (the default is 624The default value for the C<User-Agent> header (the default is
513C<Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>). 625C<Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)>).
514 626
515=item $AnyEvent::HTTP::MAX_PERSISTENT 627=item $AnyEvent::HTTP::MAX_PERSISTENT
516 628
517The maximum number of persistent connections to keep open (default: 8). 629The maximum number of persistent connections to keep open (default: 8).
518 630
… …
548=head1 AUTHOR 660=head1 AUTHOR
549 661
550 Marc Lehmann <schmorp@schmorp.de> 662 Marc Lehmann <schmorp@schmorp.de>
551 http://home.schmorp.de/ 663 http://home.schmorp.de/
552 664
665With many thanks to Дмитрий Шалашов, who provided countless
666testcases and bugreports.
667
553=cut 668=cut
554 669
5551 6701
556 671

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