… | |
… | |
94 | C<http_request> returns a "cancellation guard" - you have to keep the |
94 | C<http_request> returns a "cancellation guard" - you have to keep the |
95 | object at least alive until the callback get called. If the object gets |
95 | object at least alive until the callback get called. If the object gets |
96 | destroyed before the callback is called, the request will be cancelled. |
96 | destroyed before the callback is called, the request will be cancelled. |
97 | |
97 | |
98 | The callback will be called with the response body data as first argument |
98 | The callback will be called with the response body data as first argument |
99 | (or C<undef> if an error occured), and a hash-ref with response headers as |
99 | (or C<undef> if an error occured), and a hash-ref with response headers |
100 | second argument. |
100 | (and trailers) as second argument. |
101 | |
101 | |
102 | All the headers in that hash are lowercased. In addition to the response |
102 | All the headers in that hash are lowercased. In addition to the response |
103 | headers, the "pseudo-headers" (uppercase to avoid clashing with possible |
103 | headers, the "pseudo-headers" (uppercase to avoid clashing with possible |
104 | response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the |
104 | response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the |
105 | three parts of the HTTP Status-Line of the same name. If an error occurs |
105 | three parts of the HTTP Status-Line of the same name. If an error occurs |
… | |
… | |
122 | |
122 | |
123 | If the server sends a header multiple times, then their contents will be |
123 | If the server sends a header multiple times, then their contents will be |
124 | joined together with a comma (C<,>), as per the HTTP spec. |
124 | joined together with a comma (C<,>), as per the HTTP spec. |
125 | |
125 | |
126 | If an internal error occurs, such as not being able to resolve a hostname, |
126 | If an internal error occurs, such as not being able to resolve a hostname, |
127 | then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<59x> |
127 | then C<$data> will be C<undef>, C<< $headers->{Status} >> will be |
128 | (usually C<599>) and the C<Reason> pseudo-header will contain an error |
128 | C<590>-C<599> and the C<Reason> pseudo-header will contain an error |
129 | message. |
129 | message. Currently the following status codes are used: |
|
|
130 | |
|
|
131 | =over 4 |
|
|
132 | |
|
|
133 | =item 595 - errors during connection etsbalishment, proxy handshake. |
|
|
134 | |
|
|
135 | =item 596 - errors during TLS negotiation, request sending and header processing. |
|
|
136 | |
|
|
137 | =item 597 - errors during body receiving or processing. |
|
|
138 | |
|
|
139 | =item 598 - user aborted request via C<on_header> or C<on_body>. |
|
|
140 | |
|
|
141 | =item 599 - other, usually nonretryable, errors (garbled URL etc.). |
|
|
142 | |
|
|
143 | =back |
130 | |
144 | |
131 | A typical callback might look like this: |
145 | A typical callback might look like this: |
132 | |
146 | |
133 | sub { |
147 | sub { |
134 | my ($body, $hdr) = @_; |
148 | my ($body, $hdr) = @_; |
… | |
… | |
150 | Whether to recurse requests or not, e.g. on redirects, authentication |
164 | Whether to recurse requests or not, e.g. on redirects, authentication |
151 | retries and so on, and how often to do so. |
165 | retries and so on, and how often to do so. |
152 | |
166 | |
153 | =item headers => hashref |
167 | =item headers => hashref |
154 | |
168 | |
155 | The request headers to use. Currently, C<http_request> may provide its |
169 | The request headers to use. Currently, C<http_request> may provide its own |
156 | own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers |
170 | C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers and |
157 | and will provide defaults for C<User-Agent:> and C<Referer:> (this can be |
171 | will provide defaults at least for C<TE:>, C<Referer:> and C<User-Agent:> |
158 | suppressed by using C<undef> for these headers in which case they won't be |
172 | (this can be suppressed by using C<undef> for these headers in which case |
159 | sent at all). |
173 | they won't be sent at all). |
160 | |
174 | |
161 | =item timeout => $seconds |
175 | =item timeout => $seconds |
162 | |
176 | |
163 | The time-out to use for various stages - each connect attempt will reset |
177 | The time-out to use for various stages - each connect attempt will reset |
164 | the timeout, as will read or write activity, i.e. this is not an overall |
178 | the timeout, as will read or write activity, i.e. this is not an overall |
… | |
… | |
174 | C<$scheme> must be either missing, C<http> for HTTP or C<https> for |
188 | C<$scheme> must be either missing, C<http> for HTTP or C<https> for |
175 | HTTPS. |
189 | HTTPS. |
176 | |
190 | |
177 | =item body => $string |
191 | =item body => $string |
178 | |
192 | |
179 | The request body, usually empty. Will be-sent as-is (future versions of |
193 | The request body, usually empty. Will be sent as-is (future versions of |
180 | this module might offer more options). |
194 | this module might offer more options). |
181 | |
195 | |
182 | =item cookie_jar => $hash_ref |
196 | =item cookie_jar => $hash_ref |
183 | |
197 | |
184 | Passing this parameter enables (simplified) cookie-processing, loosely |
198 | Passing this parameter enables (simplified) cookie-processing, loosely |
185 | based on the original netscape specification. |
199 | based on the original netscape specification. |
186 | |
200 | |
187 | The C<$hash_ref> must be an (initially empty) hash reference which will |
201 | The C<$hash_ref> must be an (initially empty) hash reference which will |
188 | get updated automatically. It is possible to save the cookie_jar to |
202 | get updated automatically. It is possible to save the cookie jar to |
189 | persistent storage with something like JSON or Storable, but this is not |
203 | persistent storage with something like JSON or Storable, but this is not |
190 | recommended, as expiry times are currently being ignored. |
204 | recommended, as session-only cookies might survive longer than expected. |
191 | |
205 | |
192 | Note that this cookie implementation is not of very high quality, nor |
206 | Note that this cookie implementation is not meant to be complete. If |
193 | meant to be complete. If you want complete cookie management you have to |
207 | you want complete cookie management you have to do that on your |
194 | do that on your own. C<cookie_jar> is meant as a quick fix to get some |
208 | own. C<cookie_jar> is meant as a quick fix to get some cookie-using sites |
195 | cookie-using sites working. Cookies are a privacy disaster, do not use |
209 | working. Cookies are a privacy disaster, do not use them unless required |
196 | them unless required to. |
210 | to. |
|
|
211 | |
|
|
212 | When cookie processing is enabled, the C<Cookie:> and C<Set-Cookie:> |
|
|
213 | headers will be set and handled by this module, otherwise they will be |
|
|
214 | left untouched. |
197 | |
215 | |
198 | =item tls_ctx => $scheme | $tls_ctx |
216 | =item tls_ctx => $scheme | $tls_ctx |
199 | |
217 | |
200 | Specifies the AnyEvent::TLS context to be used for https connections. This |
218 | Specifies the AnyEvent::TLS context to be used for https connections. This |
201 | parameter follows the same rules as the C<tls_ctx> parameter to |
219 | parameter follows the same rules as the C<tls_ctx> parameter to |
… | |
… | |
240 | |
258 | |
241 | This callback is useful, among other things, to quickly reject unwanted |
259 | This callback is useful, among other things, to quickly reject unwanted |
242 | content, which, if it is supposed to be rare, can be faster than first |
260 | content, which, if it is supposed to be rare, can be faster than first |
243 | doing a C<HEAD> request. |
261 | doing a C<HEAD> request. |
244 | |
262 | |
|
|
263 | The downside is that cancelling the request makes it impossible to re-use |
|
|
264 | the connection. Also, the C<on_header> callback will not receive any |
|
|
265 | trailer (headers sent after the response body). |
|
|
266 | |
245 | Example: cancel the request unless the content-type is "text/html". |
267 | Example: cancel the request unless the content-type is "text/html". |
246 | |
268 | |
247 | on_header => sub { |
269 | on_header => sub { |
248 | $_[0]{"content-type"} =~ /^text\/html\s*(?:;|$)/ |
270 | $_[0]{"content-type"} =~ /^text\/html\s*(?:;|$)/ |
249 | }, |
271 | }, |
… | |
… | |
255 | string instead of the body data. |
277 | string instead of the body data. |
256 | |
278 | |
257 | It has to return either true (in which case AnyEvent::HTTP will continue), |
279 | It has to return either true (in which case AnyEvent::HTTP will continue), |
258 | or false, in which case AnyEvent::HTTP will cancel the download (and call |
280 | or false, in which case AnyEvent::HTTP will cancel the download (and call |
259 | the completion callback with an error code of C<598>). |
281 | the completion callback with an error code of C<598>). |
|
|
282 | |
|
|
283 | The downside to cancelling the request is that it makes it impossible to |
|
|
284 | re-use the connection. |
260 | |
285 | |
261 | This callback is useful when the data is too large to be held in memory |
286 | This callback is useful when the data is too large to be held in memory |
262 | (so the callback writes it to a file) or when only some information should |
287 | (so the callback writes it to a file) or when only some information should |
263 | be extracted, or when the body should be processed incrementally. |
288 | be extracted, or when the body should be processed incrementally. |
264 | |
289 | |
… | |
… | |
290 | If you think you need this, first have a look at C<on_body>, to see if |
315 | If you think you need this, first have a look at C<on_body>, to see if |
291 | that doesn't solve your problem in a better way. |
316 | that doesn't solve your problem in a better way. |
292 | |
317 | |
293 | =back |
318 | =back |
294 | |
319 | |
295 | Example: make a simple HTTP GET request for http://www.nethype.de/ |
320 | Example: do a simple HTTP GET request for http://www.nethype.de/ and print |
|
|
321 | the response body. |
296 | |
322 | |
297 | http_request GET => "http://www.nethype.de/", sub { |
323 | http_request GET => "http://www.nethype.de/", sub { |
298 | my ($body, $hdr) = @_; |
324 | my ($body, $hdr) = @_; |
299 | print "$body\n"; |
325 | print "$body\n"; |
300 | }; |
326 | }; |
301 | |
327 | |
302 | Example: make a HTTP HEAD request on https://www.google.com/, use a |
328 | Example: do a HTTP HEAD request on https://www.google.com/, use a |
303 | timeout of 30 seconds. |
329 | timeout of 30 seconds. |
304 | |
330 | |
305 | http_request |
331 | http_request |
306 | GET => "https://www.google.com", |
332 | GET => "https://www.google.com", |
307 | timeout => 30, |
333 | timeout => 30, |
… | |
… | |
310 | use Data::Dumper; |
336 | use Data::Dumper; |
311 | print Dumper $hdr; |
337 | print Dumper $hdr; |
312 | } |
338 | } |
313 | ; |
339 | ; |
314 | |
340 | |
315 | Example: make another simple HTTP GET request, but immediately try to |
341 | Example: do another simple HTTP GET request, but immediately try to |
316 | cancel it. |
342 | cancel it. |
317 | |
343 | |
318 | my $request = http_request GET => "http://www.nethype.de/", sub { |
344 | my $request = http_request GET => "http://www.nethype.de/", sub { |
319 | my ($body, $hdr) = @_; |
345 | my ($body, $hdr) = @_; |
320 | print "$body\n"; |
346 | print "$body\n"; |
… | |
… | |
352 | push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; |
378 | push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; |
353 | |
379 | |
354 | _slot_schedule $_[0]; |
380 | _slot_schedule $_[0]; |
355 | } |
381 | } |
356 | |
382 | |
|
|
383 | # extract cookies from jar |
|
|
384 | sub cookie_jar_extract($$$$) { |
|
|
385 | my ($jar, $uscheme, $uhost, $upath) = @_; |
|
|
386 | |
|
|
387 | %$jar = () if $jar->{version} != 1; |
|
|
388 | |
|
|
389 | my @cookies; |
|
|
390 | |
|
|
391 | while (my ($chost, $paths) = each %$jar) { |
|
|
392 | next unless ref $paths; |
|
|
393 | |
|
|
394 | if ($chost =~ /^\./) { |
|
|
395 | next unless $chost eq substr $uhost, -length $chost; |
|
|
396 | } elsif ($chost =~ /\./) { |
|
|
397 | next unless $chost eq $uhost; |
|
|
398 | } else { |
|
|
399 | next; |
|
|
400 | } |
|
|
401 | |
|
|
402 | while (my ($cpath, $cookies) = each %$paths) { |
|
|
403 | next unless $cpath eq substr $upath, 0, length $cpath; |
|
|
404 | |
|
|
405 | while (my ($cookie, $kv) = each %$cookies) { |
|
|
406 | next if $uscheme ne "https" && exists $kv->{secure}; |
|
|
407 | |
|
|
408 | if (exists $kv->{expires}) { |
|
|
409 | if (AE::now > parse_date ($kv->{expires})) { |
|
|
410 | delete $cookies->{$cookie}; |
|
|
411 | next; |
|
|
412 | } |
|
|
413 | } |
|
|
414 | |
|
|
415 | my $value = $kv->{value}; |
|
|
416 | |
|
|
417 | if ($value =~ /[=;,[:space:]]/) { |
|
|
418 | $value =~ s/([\\"])/\\$1/g; |
|
|
419 | $value = "\"$value\""; |
|
|
420 | } |
|
|
421 | |
|
|
422 | push @cookies, "$cookie=$value"; |
|
|
423 | } |
|
|
424 | } |
|
|
425 | } |
|
|
426 | |
|
|
427 | \@cookies |
|
|
428 | } |
|
|
429 | |
|
|
430 | # parse set_cookie header into jar |
|
|
431 | sub cookie_jar_set_cookie($$$) { |
|
|
432 | my ($jar, $set_cookie, $uhost) = @_; |
|
|
433 | |
|
|
434 | for ($set_cookie) { |
|
|
435 | # parse NAME=VALUE |
|
|
436 | my @kv; |
|
|
437 | |
|
|
438 | # expires is not http-compliant in the original cookie-spec, |
|
|
439 | # we support the official date format and some extensions |
|
|
440 | while ( |
|
|
441 | m{ |
|
|
442 | \G\s* |
|
|
443 | (?: |
|
|
444 | expires \s*=\s* ([A-Z][a-z][a-z]+,\ [^,;]+) |
|
|
445 | | ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) ) |
|
|
446 | ) |
|
|
447 | }gcxsi |
|
|
448 | ) { |
|
|
449 | my $name = $2; |
|
|
450 | my $value = $4; |
|
|
451 | |
|
|
452 | unless (defined $name) { |
|
|
453 | # expires |
|
|
454 | $name = "expires"; |
|
|
455 | $value = $1; |
|
|
456 | } elsif (!defined $value) { |
|
|
457 | # quoted |
|
|
458 | $value = $3; |
|
|
459 | $value =~ s/\\(.)/$1/gs; |
|
|
460 | } |
|
|
461 | |
|
|
462 | push @kv, lc $name, $value; |
|
|
463 | |
|
|
464 | last unless /\G\s*;/gc; |
|
|
465 | } |
|
|
466 | |
|
|
467 | last unless @kv; |
|
|
468 | |
|
|
469 | my $name = shift @kv; |
|
|
470 | my %kv = (value => shift @kv, @kv); |
|
|
471 | |
|
|
472 | $kv{expires} ||= format_date (AE::now + $kv{"max-age"}) |
|
|
473 | if exists $kv{"max-age"}; |
|
|
474 | |
|
|
475 | my $cdom; |
|
|
476 | my $cpath = (delete $kv{path}) || "/"; |
|
|
477 | |
|
|
478 | if (exists $kv{domain}) { |
|
|
479 | $cdom = delete $kv{domain}; |
|
|
480 | |
|
|
481 | $cdom =~ s/^\.?/./; # make sure it starts with a "." |
|
|
482 | |
|
|
483 | next if $cdom =~ /\.$/; |
|
|
484 | |
|
|
485 | # this is not rfc-like and not netscape-like. go figure. |
|
|
486 | my $ndots = $cdom =~ y/.//; |
|
|
487 | next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2); |
|
|
488 | } else { |
|
|
489 | $cdom = $uhost; |
|
|
490 | } |
|
|
491 | |
|
|
492 | # store it |
|
|
493 | $jar->{version} = 1; |
|
|
494 | $jar->{$cdom}{$cpath}{$name} = \%kv; |
|
|
495 | |
|
|
496 | redo if /\G\s*,/gc; |
|
|
497 | } |
|
|
498 | } |
|
|
499 | |
|
|
500 | # continue to parse $_ for headers and place them into the arg |
|
|
501 | sub parse_hdr() { |
|
|
502 | my %hdr; |
|
|
503 | |
|
|
504 | # things seen, not parsed: |
|
|
505 | # p3pP="NON CUR OTPi OUR NOR UNI" |
|
|
506 | |
|
|
507 | $hdr{lc $1} .= ",$2" |
|
|
508 | while /\G |
|
|
509 | ([^:\000-\037]*): |
|
|
510 | [\011\040]* |
|
|
511 | ((?: [^\012]+ | \012[\011\040] )*) |
|
|
512 | \012 |
|
|
513 | /gxc; |
|
|
514 | |
|
|
515 | /\G$/ |
|
|
516 | or return; |
|
|
517 | |
|
|
518 | # remove the "," prefix we added to all headers above |
|
|
519 | substr $_, 0, 1, "" |
|
|
520 | for values %hdr; |
|
|
521 | |
|
|
522 | \%hdr |
|
|
523 | } |
|
|
524 | |
357 | our $qr_nlnl = qr{(?<![^\012])\015?\012}; |
525 | our $qr_nlnl = qr{(?<![^\012])\015?\012}; |
358 | |
526 | |
359 | our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 }; |
527 | our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 }; |
360 | our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" }; |
528 | our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" }; |
361 | |
529 | |
… | |
… | |
411 | |
579 | |
412 | $upath =~ s%^/?%/%; |
580 | $upath =~ s%^/?%/%; |
413 | |
581 | |
414 | # cookie processing |
582 | # cookie processing |
415 | if (my $jar = $arg{cookie_jar}) { |
583 | if (my $jar = $arg{cookie_jar}) { |
416 | %$jar = () if $jar->{version} != 1; |
584 | my $cookies = cookie_jar_extract $jar, $uscheme, $uhost, $upath; |
417 | |
585 | |
418 | my @cookie; |
|
|
419 | |
|
|
420 | while (my ($chost, $v) = each %$jar) { |
|
|
421 | if ($chost =~ /^\./) { |
|
|
422 | next unless $chost eq substr $uhost, -length $chost; |
|
|
423 | } elsif ($chost =~ /\./) { |
|
|
424 | next unless $chost eq $uhost; |
|
|
425 | } else { |
|
|
426 | next; |
|
|
427 | } |
|
|
428 | |
|
|
429 | while (my ($cpath, $v) = each %$v) { |
|
|
430 | next unless $cpath eq substr $upath, 0, length $cpath; |
|
|
431 | |
|
|
432 | while (my ($k, $v) = each %$v) { |
|
|
433 | next if $uscheme ne "https" && exists $v->{secure}; |
|
|
434 | my $value = $v->{value}; |
|
|
435 | $value =~ s/([\\"])/\\$1/g; |
|
|
436 | push @cookie, "$k=\"$value\""; |
|
|
437 | } |
|
|
438 | } |
|
|
439 | } |
|
|
440 | |
|
|
441 | $hdr{cookie} = join "; ", @cookie |
586 | $hdr{cookie} = join "; ", @$cookies |
442 | if @cookie; |
587 | if @$cookies; |
443 | } |
588 | } |
444 | |
589 | |
445 | my ($rhost, $rport, $rscheme, $rpath); # request host, port, path |
590 | my ($rhost, $rport, $rscheme, $rpath); # request host, port, path |
446 | |
591 | |
447 | if ($proxy) { |
592 | if ($proxy) { |
… | |
… | |
455 | } else { |
600 | } else { |
456 | ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath); |
601 | ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath); |
457 | } |
602 | } |
458 | |
603 | |
459 | # leave out fragment and query string, just a heuristic |
604 | # leave out fragment and query string, just a heuristic |
460 | $hdr{referer} ||= "$uscheme://$uauthority$upath" unless exists $hdr{referer}; |
605 | $hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer}; |
461 | $hdr{"user-agent"} ||= $USERAGENT unless exists $hdr{"user-agent"}; |
606 | $hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"}; |
462 | |
607 | |
463 | $hdr{"content-length"} = length $arg{body} |
608 | $hdr{"content-length"} = length $arg{body} |
464 | if length $arg{body} || $method ne "GET"; |
609 | if length $arg{body} || $method ne "GET"; |
465 | |
610 | |
|
|
611 | $hdr{connection} = "close TE"; #1.1 |
|
|
612 | $hdr{te} = "trailers" unless exists $hdr{te}; #1.1 |
|
|
613 | |
466 | my %state = (connect_guard => 1); |
614 | my %state = (connect_guard => 1); |
467 | |
615 | |
468 | _get_slot $uhost, sub { |
616 | _get_slot $uhost, sub { |
469 | $state{slot_guard} = shift; |
617 | $state{slot_guard} = shift; |
470 | |
618 | |
471 | return unless $state{connect_guard}; |
619 | return unless $state{connect_guard}; |
|
|
620 | |
|
|
621 | my $ae_error = 595; # connecting |
472 | |
622 | |
473 | my $connect_cb = sub { |
623 | my $connect_cb = sub { |
474 | $state{fh} = shift |
624 | $state{fh} = shift |
475 | or do { |
625 | or do { |
476 | my $err = "$!"; |
626 | my $err = "$!"; |
477 | %state = (); |
627 | %state = (); |
478 | return $cb->(undef, { @pseudo, Status => 599, Reason => $err }); |
628 | return $cb->(undef, { @pseudo, Status => $ae_error, Reason => $err }); |
479 | }; |
629 | }; |
480 | |
|
|
481 | pop; # free memory, save a tree |
|
|
482 | |
630 | |
483 | return unless delete $state{connect_guard}; |
631 | return unless delete $state{connect_guard}; |
484 | |
632 | |
485 | # get handle |
633 | # get handle |
486 | $state{handle} = new AnyEvent::Handle |
634 | $state{handle} = new AnyEvent::Handle |
… | |
… | |
489 | tls_ctx => $arg{tls_ctx}, |
637 | tls_ctx => $arg{tls_ctx}, |
490 | # these need to be reconfigured on keepalive handles |
638 | # these need to be reconfigured on keepalive handles |
491 | timeout => $timeout, |
639 | timeout => $timeout, |
492 | on_error => sub { |
640 | on_error => sub { |
493 | %state = (); |
641 | %state = (); |
494 | $cb->(undef, { @pseudo, Status => 599, Reason => $_[2] }); |
642 | $cb->(undef, { @pseudo, Status => $ae_error, Reason => $_[2] }); |
495 | }, |
643 | }, |
496 | on_eof => sub { |
644 | on_eof => sub { |
497 | %state = (); |
645 | %state = (); |
498 | $cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" }); |
646 | $cb->(undef, { @pseudo, Status => $ae_error, Reason => "Unexpected end-of-file" }); |
499 | }, |
647 | }, |
500 | ; |
648 | ; |
501 | |
649 | |
502 | # limit the number of persistent connections |
650 | # limit the number of persistent connections |
503 | # keepalive not yet supported |
651 | # keepalive not yet supported |
… | |
… | |
505 | # ++$KA_COUNT{$_[1]}; |
653 | # ++$KA_COUNT{$_[1]}; |
506 | # $state{handle}{ka_count_guard} = AnyEvent::Util::guard { |
654 | # $state{handle}{ka_count_guard} = AnyEvent::Util::guard { |
507 | # --$KA_COUNT{$_[1]} |
655 | # --$KA_COUNT{$_[1]} |
508 | # }; |
656 | # }; |
509 | # $hdr{connection} = "keep-alive"; |
657 | # $hdr{connection} = "keep-alive"; |
510 | # } else { |
|
|
511 | delete $hdr{connection}; |
|
|
512 | # } |
658 | # } |
513 | |
659 | |
514 | $state{handle}->starttls ("connect") if $rscheme eq "https"; |
660 | $state{handle}->starttls ("connect") if $rscheme eq "https"; |
515 | |
661 | |
516 | # handle actual, non-tunneled, request |
662 | # handle actual, non-tunneled, request |
517 | my $handle_actual_request = sub { |
663 | my $handle_actual_request = sub { |
|
|
664 | $ae_error = 596; # request phase |
|
|
665 | |
518 | $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls}; |
666 | $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls}; |
519 | |
667 | |
520 | # send request |
668 | # send request |
521 | $state{handle}->push_write ( |
669 | $state{handle}->push_write ( |
522 | "$method $rpath HTTP/1.0\015\012" |
670 | "$method $rpath HTTP/1.1\015\012" |
523 | . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr) |
671 | . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr) |
524 | . "\015\012" |
672 | . "\015\012" |
525 | . (delete $arg{body}) |
673 | . (delete $arg{body}) |
526 | ); |
674 | ); |
527 | |
675 | |
… | |
… | |
529 | return unless %state; |
677 | return unless %state; |
530 | |
678 | |
531 | %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use |
679 | %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use |
532 | |
680 | |
533 | # status line and headers |
681 | # status line and headers |
534 | $state{handle}->push_read (line => $qr_nlnl, sub { |
682 | $state{read_response} = sub { |
535 | my $keepalive = pop; |
|
|
536 | |
|
|
537 | for ("$_[1]") { |
683 | for ("$_[1]") { |
538 | y/\015//d; # weed out any \015, as they show up in the weirdest of places. |
684 | y/\015//d; # weed out any \015, as they show up in the weirdest of places. |
539 | |
685 | |
540 | /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )? \015?\012/igxc |
686 | /^HTTP\/0*([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/gxci |
541 | or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" })); |
687 | or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" })); |
|
|
688 | |
|
|
689 | # 100 Continue handling |
|
|
690 | # should not happen as we don't send expect: 100-continue, |
|
|
691 | # but we handle it just in case. |
|
|
692 | # since we send the request body regardless, if we get an error |
|
|
693 | # we are out of-sync, which we currently do NOT handle correctly. |
|
|
694 | return $state{handle}->push_read (line => $qr_nlnl, $state{read_response}) |
|
|
695 | if $2 eq 100; |
542 | |
696 | |
543 | push @pseudo, |
697 | push @pseudo, |
544 | HTTPVersion => $1, |
698 | HTTPVersion => $1, |
545 | Status => $2, |
699 | Status => $2, |
546 | Reason => $3, |
700 | Reason => $3, |
547 | ; |
701 | ; |
548 | |
702 | |
549 | # things seen, not parsed: |
703 | my $hdr = parse_hdr |
550 | # p3pP="NON CUR OTPi OUR NOR UNI" |
|
|
551 | |
|
|
552 | $hdr{lc $1} .= ",$2" |
|
|
553 | while /\G |
|
|
554 | ([^:\000-\037]*): |
|
|
555 | [\011\040]* |
|
|
556 | ((?: [^\012]+ | \012[\011\040] )*) |
|
|
557 | \012 |
|
|
558 | /gxc; |
|
|
559 | |
|
|
560 | /\G$/ |
|
|
561 | or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" })); |
704 | or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" })); |
|
|
705 | |
|
|
706 | %hdr = (%$hdr, @pseudo); |
562 | } |
707 | } |
563 | |
|
|
564 | # remove the "," prefix we added to all headers above |
|
|
565 | substr $_, 0, 1, "" |
|
|
566 | for values %hdr; |
|
|
567 | |
|
|
568 | # patch in all pseudo headers |
|
|
569 | %hdr = (%hdr, @pseudo); |
|
|
570 | |
708 | |
571 | # redirect handling |
709 | # redirect handling |
572 | # microsoft and other shitheads don't give a shit for following standards, |
710 | # microsoft and other shitheads don't give a shit for following standards, |
573 | # try to support some common forms of broken Location headers. |
711 | # try to support some common forms of broken Location headers. |
574 | if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) { |
712 | if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) { |
… | |
… | |
588 | |
726 | |
589 | if ($recurse) { |
727 | if ($recurse) { |
590 | my $status = $hdr{Status}; |
728 | my $status = $hdr{Status}; |
591 | |
729 | |
592 | # industry standard is to redirect POST as GET for |
730 | # industry standard is to redirect POST as GET for |
593 | # 301, 302 and 303, in contrast to http/1.0 and 1.1. |
731 | # 301, 302 and 303, in contrast to HTTP/1.0 and 1.1. |
594 | # also, the UA should ask the user for 301 and 307 and POST, |
732 | # also, the UA should ask the user for 301 and 307 and POST, |
595 | # industry standard seems to be to simply follow. |
733 | # industry standard seems to be to simply follow. |
596 | # we go with the industry standard. |
734 | # we go with the industry standard. |
597 | if ($status == 301 or $status == 302 or $status == 303) { |
735 | if ($status == 301 or $status == 302 or $status == 303) { |
598 | # HTTP/1.1 is unclear on how to mutate the method |
736 | # HTTP/1.1 is unclear on how to mutate the method |
… | |
… | |
602 | $redirect = 1; |
740 | $redirect = 1; |
603 | } |
741 | } |
604 | } |
742 | } |
605 | |
743 | |
606 | my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive]) |
744 | my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive]) |
|
|
745 | my $may_keep_alive = $_[3]; |
|
|
746 | |
607 | $state{handle}->destroy if $state{handle}; |
747 | $state{handle}->destroy if $state{handle}; |
608 | %state = (); |
748 | %state = (); |
609 | |
749 | |
610 | if (defined $_[1]) { |
750 | if (defined $_[1]) { |
611 | $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1]; |
751 | $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1]; |
612 | $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2]; |
752 | $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2]; |
613 | } |
753 | } |
614 | |
754 | |
615 | # set-cookie processing |
755 | # set-cookie processing |
616 | if ($arg{cookie_jar}) { |
756 | if ($arg{cookie_jar}) { |
617 | for ($hdr{"set-cookie"}) { |
757 | cookie_jar_set_cookie $arg{cookie_jar}, $hdr{"set-cookie"}, $uhost; |
618 | # parse NAME=VALUE |
|
|
619 | my @kv; |
|
|
620 | |
|
|
621 | while (/\G\s* ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )/gcxs) { |
|
|
622 | my $name = $1; |
|
|
623 | my $value = $3; |
|
|
624 | |
|
|
625 | unless ($value) { |
|
|
626 | $value = $2; |
|
|
627 | $value =~ s/\\(.)/$1/gs; |
|
|
628 | } |
|
|
629 | |
|
|
630 | push @kv, $name => $value; |
|
|
631 | |
|
|
632 | last unless /\G\s*;/gc; |
|
|
633 | } |
|
|
634 | |
|
|
635 | last unless @kv; |
|
|
636 | |
|
|
637 | my $name = shift @kv; |
|
|
638 | my %kv = (value => shift @kv, @kv); |
|
|
639 | |
|
|
640 | my $cdom; |
|
|
641 | my $cpath = (delete $kv{path}) || "/"; |
|
|
642 | |
|
|
643 | if (exists $kv{domain}) { |
|
|
644 | $cdom = delete $kv{domain}; |
|
|
645 | |
|
|
646 | $cdom =~ s/^\.?/./; # make sure it starts with a "." |
|
|
647 | |
|
|
648 | next if $cdom =~ /\.$/; |
|
|
649 | |
|
|
650 | # this is not rfc-like and not netscape-like. go figure. |
|
|
651 | my $ndots = $cdom =~ y/.//; |
|
|
652 | next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2); |
|
|
653 | } else { |
|
|
654 | $cdom = $uhost; |
|
|
655 | } |
|
|
656 | |
|
|
657 | # store it |
|
|
658 | $arg{cookie_jar}{version} = 1; |
|
|
659 | $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv; |
|
|
660 | |
|
|
661 | redo if /\G\s*,/gc; |
|
|
662 | } |
|
|
663 | } |
758 | } |
664 | |
759 | |
665 | if ($redirect && exists $hdr{location}) { |
760 | if ($redirect && exists $hdr{location}) { |
666 | # we ignore any errors, as it is very common to receive |
761 | # we ignore any errors, as it is very common to receive |
667 | # Content-Length != 0 but no actual body |
762 | # Content-Length != 0 but no actual body |
… | |
… | |
675 | } else { |
770 | } else { |
676 | $cb->($_[0], \%hdr); |
771 | $cb->($_[0], \%hdr); |
677 | } |
772 | } |
678 | }; |
773 | }; |
679 | |
774 | |
|
|
775 | $ae_error = 597; # body phase |
|
|
776 | |
680 | my $len = $hdr{"content-length"}; |
777 | my $len = $hdr{"content-length"}; |
681 | |
778 | |
682 | if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) { |
779 | if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) { |
683 | $finish->(undef, 598 => "Request cancelled by on_header"); |
780 | $finish->(undef, 598 => "Request cancelled by on_header"); |
684 | } elsif ( |
781 | } elsif ( |
… | |
… | |
687 | or (defined $len && !$len) |
784 | or (defined $len && !$len) |
688 | ) { |
785 | ) { |
689 | # no body |
786 | # no body |
690 | $finish->("", undef, undef, 1); |
787 | $finish->("", undef, undef, 1); |
691 | } else { |
788 | } else { |
692 | # body handling, four different code paths |
789 | # body handling, many different code paths |
693 | # for want_body_handle, on_body (2x), normal (2x) |
790 | # - no body expected |
694 | # we might read too much here, but it does not matter yet (no pipelining) |
791 | # - want_body_handle |
|
|
792 | # - te chunked |
|
|
793 | # - 2x length known (with or without on_body) |
|
|
794 | # - 2x length not known (with or without on_body) |
695 | if (!$redirect && $arg{want_body_handle}) { |
795 | if (!$redirect && $arg{want_body_handle}) { |
696 | $_[0]->on_eof (undef); |
796 | $_[0]->on_eof (undef); |
697 | $_[0]->on_error (undef); |
797 | $_[0]->on_error (undef); |
698 | $_[0]->on_read (undef); |
798 | $_[0]->on_read (undef); |
699 | |
799 | |
700 | $finish->(delete $state{handle}); |
800 | $finish->(delete $state{handle}); |
701 | |
801 | |
|
|
802 | } elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) { |
|
|
803 | my $cl = 0; |
|
|
804 | my $body = undef; |
|
|
805 | my $on_body = $arg{on_body} || sub { $body .= shift; 1 }; |
|
|
806 | |
|
|
807 | my $read_chunk; $read_chunk = sub { |
|
|
808 | $_[1] =~ /^([0-9a-fA-F]+)/ |
|
|
809 | or $finish->(undef, $ae_error => "Garbled chunked transfer encoding"); |
|
|
810 | |
|
|
811 | my $len = hex $1; |
|
|
812 | |
|
|
813 | if ($len) { |
|
|
814 | $cl += $len; |
|
|
815 | |
|
|
816 | $_[0]->push_read (chunk => $len, sub { |
|
|
817 | $on_body->($_[1], \%hdr) |
|
|
818 | or return $finish->(undef, 598 => "Request cancelled by on_body"); |
|
|
819 | |
|
|
820 | $_[0]->push_read (line => sub { |
|
|
821 | length $_[1] |
|
|
822 | and return $finish->(undef, $ae_error => "Garbled chunked transfer encoding"); |
|
|
823 | $_[0]->push_read (line => $read_chunk); |
|
|
824 | }); |
|
|
825 | }); |
|
|
826 | } else { |
|
|
827 | $hdr{"content-length"} ||= $cl; |
|
|
828 | |
|
|
829 | $_[0]->push_read (line => $qr_nlnl, sub { |
|
|
830 | if (length $_[1]) { |
|
|
831 | for ("$_[1]") { |
|
|
832 | y/\015//d; # weed out any \015, as they show up in the weirdest of places. |
|
|
833 | |
|
|
834 | my $hdr = parse_hdr |
|
|
835 | or return $finish->(undef, $ae_error => "Garbled response trailers"); |
|
|
836 | |
|
|
837 | %hdr = (%hdr, %$hdr); |
|
|
838 | } |
|
|
839 | } |
|
|
840 | |
|
|
841 | $finish->($body, undef, undef, 1); |
|
|
842 | }); |
|
|
843 | } |
|
|
844 | }; |
|
|
845 | |
|
|
846 | $_[0]->push_read (line => $read_chunk); |
|
|
847 | |
702 | } elsif ($arg{on_body}) { |
848 | } elsif ($arg{on_body}) { |
703 | $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) }); |
|
|
704 | if ($len) { |
849 | if ($len) { |
705 | $_[0]->on_read (sub { |
850 | $_[0]->on_read (sub { |
706 | $len -= length $_[0]{rbuf}; |
851 | $len -= length $_[0]{rbuf}; |
707 | |
852 | |
708 | $arg{on_body}(delete $_[0]{rbuf}, \%hdr) |
853 | $arg{on_body}(delete $_[0]{rbuf}, \%hdr) |
709 | or $finish->(undef, 598 => "Request cancelled by on_body"); |
854 | or return $finish->(undef, 598 => "Request cancelled by on_body"); |
710 | |
855 | |
711 | $len > 0 |
856 | $len > 0 |
712 | or $finish->("", undef, undef, 1); |
857 | or $finish->("", undef, undef, 1); |
713 | }); |
858 | }); |
714 | } else { |
859 | } else { |
… | |
… | |
722 | } |
867 | } |
723 | } else { |
868 | } else { |
724 | $_[0]->on_eof (undef); |
869 | $_[0]->on_eof (undef); |
725 | |
870 | |
726 | if ($len) { |
871 | if ($len) { |
727 | $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) }); |
|
|
728 | $_[0]->on_read (sub { |
872 | $_[0]->on_read (sub { |
729 | $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1) |
873 | $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1) |
730 | if $len <= length $_[0]{rbuf}; |
874 | if $len <= length $_[0]{rbuf}; |
731 | }); |
875 | }); |
732 | } else { |
876 | } else { |
733 | $_[0]->on_error (sub { |
877 | $_[0]->on_error (sub { |
734 | ($! == Errno::EPIPE || !$!) |
878 | ($! == Errno::EPIPE || !$!) |
735 | ? $finish->(delete $_[0]{rbuf}) |
879 | ? $finish->(delete $_[0]{rbuf}) |
736 | : $finish->(undef, 599 => $_[2]); |
880 | : $finish->(undef, $ae_error => $_[2]); |
737 | }); |
881 | }); |
738 | $_[0]->on_read (sub { }); |
882 | $_[0]->on_read (sub { }); |
739 | } |
883 | } |
740 | } |
884 | } |
741 | } |
885 | } |
742 | }); |
886 | }; |
|
|
887 | |
|
|
888 | $state{handle}->push_read (line => $qr_nlnl, $state{read_response}); |
743 | }; |
889 | }; |
744 | |
890 | |
745 | # now handle proxy-CONNECT method |
891 | # now handle proxy-CONNECT method |
746 | if ($proxy && $uscheme eq "https") { |
892 | if ($proxy && $uscheme eq "https") { |
747 | # oh dear, we have to wrap it into a connect request |
893 | # oh dear, we have to wrap it into a connect request |
… | |
… | |
819 | Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP |
965 | Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP |
820 | Date (RFC 2616). |
966 | Date (RFC 2616). |
821 | |
967 | |
822 | =item $timestamp = AnyEvent::HTTP::parse_date $date |
968 | =item $timestamp = AnyEvent::HTTP::parse_date $date |
823 | |
969 | |
824 | Takes a HTTP Date (RFC 2616) and returns the corresponding POSIX |
970 | Takes a HTTP Date (RFC 2616) or a Cookie date (netscape cookie spec) or a |
|
|
971 | bunch of minor variations of those, and returns the corresponding POSIX |
825 | timestamp, or C<undef> if the date cannot be parsed. |
972 | timestamp, or C<undef> if the date cannot be parsed. |
826 | |
973 | |
827 | =item $AnyEvent::HTTP::MAX_RECURSE |
974 | =item $AnyEvent::HTTP::MAX_RECURSE |
828 | |
975 | |
829 | The default value for the C<recurse> request parameter (default: C<10>). |
976 | The default value for the C<recurse> request parameter (default: C<10>). |
… | |
… | |
869 | sub parse_date($) { |
1016 | sub parse_date($) { |
870 | my ($date) = @_; |
1017 | my ($date) = @_; |
871 | |
1018 | |
872 | my ($d, $m, $y, $H, $M, $S); |
1019 | my ($d, $m, $y, $H, $M, $S); |
873 | |
1020 | |
874 | if ($date =~ /^[A-Z][a-z][a-z], ([0-9][0-9]) ([A-Z][a-z][a-z]) ([0-9][0-9][0-9][0-9]) ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) GMT$/) { |
1021 | if ($date =~ /^[A-Z][a-z][a-z]+, ([0-9][0-9]?)[\- ]([A-Z][a-z][a-z])[\- ]([0-9][0-9][0-9][0-9]) ([0-9][0-9]?):([0-9][0-9]?):([0-9][0-9]?) GMT$/) { |
875 | # RFC 822/1123, required by RFC 2616 |
1022 | # RFC 822/1123, required by RFC 2616 (with " ") |
|
|
1023 | # cookie dates (with "-") |
|
|
1024 | |
876 | ($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6); |
1025 | ($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6); |
877 | |
1026 | |
878 | } elsif ($date =~ /^[A-Z][a-z]+, ([0-9][0-9])-([A-Z][a-z][a-z])-([0-9][0-9]) ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) GMT$/) { |
1027 | } elsif ($date =~ /^[A-Z][a-z][a-z]+, ([0-9][0-9]?)-([A-Z][a-z][a-z])-([0-9][0-9]) ([0-9][0-9]?):([0-9][0-9]?):([0-9][0-9]?) GMT$/) { |
879 | # RFC 850 |
1028 | # RFC 850 |
880 | ($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6); |
1029 | ($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6); |
881 | |
1030 | |
882 | } elsif ($date =~ /^[A-Z][a-z][a-z] ([A-Z][a-z][a-z]) ([0-9 ][0-9]) ([0-9][0-9]):([0-9][0-9]):([0-9][0-9]) ([0-9][0-9][0-9][0-9])$/) { |
1031 | } elsif ($date =~ /^[A-Z][a-z][a-z]+ ([A-Z][a-z][a-z]) ([0-9 ]?[0-9]) ([0-9][0-9]?):([0-9][0-9]?):([0-9][0-9]?) ([0-9][0-9][0-9][0-9])$/) { |
883 | # ISO C's asctime |
1032 | # ISO C's asctime |
884 | ($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5); |
1033 | ($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5); |
885 | } |
1034 | } |
886 | # other formats fail in the loop below |
1035 | # other formats fail in the loop below |
887 | |
1036 | |