… | |
… | |
43 | |
43 | |
44 | use Errno (); |
44 | use Errno (); |
45 | |
45 | |
46 | use AnyEvent 5.0 (); |
46 | use AnyEvent 5.0 (); |
47 | use AnyEvent::Util (); |
47 | use AnyEvent::Util (); |
48 | use AnyEvent::Socket (); |
|
|
49 | use AnyEvent::Handle (); |
48 | use AnyEvent::Handle (); |
50 | |
49 | |
51 | use base Exporter::; |
50 | use base Exporter::; |
52 | |
51 | |
53 | our $VERSION = '1.46'; |
52 | our $VERSION = '1.5'; |
54 | |
53 | |
55 | our @EXPORT = qw(http_get http_post http_head http_request); |
54 | our @EXPORT = qw(http_get http_post http_head http_request); |
56 | |
55 | |
57 | our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)"; |
56 | our $USERAGENT = "Mozilla/5.0 (compatible; U; AnyEvent-HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)"; |
58 | our $MAX_RECURSE = 10; |
57 | our $MAX_RECURSE = 10; |
… | |
… | |
95 | 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 |
96 | 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 |
97 | destroyed before the callback is called, the request will be cancelled. |
96 | destroyed before the callback is called, the request will be cancelled. |
98 | |
97 | |
99 | 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 |
100 | (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 |
101 | second argument. |
100 | (and trailers) as second argument. |
102 | |
101 | |
103 | 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 |
104 | headers, the "pseudo-headers" (uppercase to avoid clashing with possible |
103 | headers, the "pseudo-headers" (uppercase to avoid clashing with possible |
105 | response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the |
104 | response headers) C<HTTPVersion>, C<Status> and C<Reason> contain the |
106 | three parts of the HTTP Status-Line of the same name. |
105 | three parts of the HTTP Status-Line of the same name. If an error occurs |
|
|
106 | during the body phase of a request, then the original C<Status> and |
|
|
107 | C<Reason> values from the header are available as C<OrigStatus> and |
|
|
108 | C<OrigReason>. |
107 | |
109 | |
108 | The pseudo-header C<URL> contains the actual URL (which can differ from |
110 | The pseudo-header C<URL> contains the actual URL (which can differ from |
109 | the requested URL when following redirects - for example, you might get |
111 | the requested URL when following redirects - for example, you might get |
110 | an error that your URL scheme is not supported even though your URL is a |
112 | an error that your URL scheme is not supported even though your URL is a |
111 | valid http URL because it redirected to an ftp URL, in which case you can |
113 | valid http URL because it redirected to an ftp URL, in which case you can |
… | |
… | |
148 | Whether to recurse requests or not, e.g. on redirects, authentication |
150 | Whether to recurse requests or not, e.g. on redirects, authentication |
149 | retries and so on, and how often to do so. |
151 | retries and so on, and how often to do so. |
150 | |
152 | |
151 | =item headers => hashref |
153 | =item headers => hashref |
152 | |
154 | |
153 | The request headers to use. Currently, C<http_request> may provide its |
155 | The request headers to use. Currently, C<http_request> may provide its own |
154 | own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers |
156 | C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers and |
155 | and will provide defaults for C<User-Agent:> and C<Referer:> (this can be |
157 | will provide defaults for C<TE:>, C<Referer:> and C<User-Agent:> (this can |
156 | suppressed by using C<undef> for these headers in which case they won't be |
158 | be suppressed by using C<undef> for these headers in which case they won't |
157 | sent at all). |
159 | be sent at all). |
158 | |
160 | |
159 | =item timeout => $seconds |
161 | =item timeout => $seconds |
160 | |
162 | |
161 | The time-out to use for various stages - each connect attempt will reset |
163 | The time-out to use for various stages - each connect attempt will reset |
162 | the timeout, as will read or write activity, i.e. this is not an overall |
164 | the timeout, as will read or write activity, i.e. this is not an overall |
… | |
… | |
172 | C<$scheme> must be either missing, C<http> for HTTP or C<https> for |
174 | C<$scheme> must be either missing, C<http> for HTTP or C<https> for |
173 | HTTPS. |
175 | HTTPS. |
174 | |
176 | |
175 | =item body => $string |
177 | =item body => $string |
176 | |
178 | |
177 | The request body, usually empty. Will be-sent as-is (future versions of |
179 | The request body, usually empty. Will be sent as-is (future versions of |
178 | this module might offer more options). |
180 | this module might offer more options). |
179 | |
181 | |
180 | =item cookie_jar => $hash_ref |
182 | =item cookie_jar => $hash_ref |
181 | |
183 | |
182 | Passing this parameter enables (simplified) cookie-processing, loosely |
184 | Passing this parameter enables (simplified) cookie-processing, loosely |
… | |
… | |
212 | overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect> |
214 | overrides the prepare callback passed to C<AnyEvent::Socket::tcp_connect> |
213 | and behaves exactly the same way (e.g. it has to provide a |
215 | and behaves exactly the same way (e.g. it has to provide a |
214 | timeout). See the description for the C<$prepare_cb> argument of |
216 | timeout). See the description for the C<$prepare_cb> argument of |
215 | C<AnyEvent::Socket::tcp_connect> for details. |
217 | C<AnyEvent::Socket::tcp_connect> for details. |
216 | |
218 | |
|
|
219 | =item tcp_connect => $callback->($host, $service, $connect_cb, $prepare_cb) |
|
|
220 | |
|
|
221 | In even rarer cases you want total control over how AnyEvent::HTTP |
|
|
222 | establishes connections. Normally it uses L<AnyEvent::Socket::tcp_connect> |
|
|
223 | to do this, but you can provide your own C<tcp_connect> function - |
|
|
224 | obviously, it has to follow the same calling conventions, except that it |
|
|
225 | may always return a connection guard object. |
|
|
226 | |
|
|
227 | There are probably lots of weird uses for this function, starting from |
|
|
228 | tracing the hosts C<http_request> actually tries to connect, to (inexact |
|
|
229 | but fast) host => IP address caching or even socks protocol support. |
|
|
230 | |
217 | =item on_header => $callback->($headers) |
231 | =item on_header => $callback->($headers) |
218 | |
232 | |
219 | When specified, this callback will be called with the header hash as soon |
233 | When specified, this callback will be called with the header hash as soon |
220 | as headers have been successfully received from the remote server (not on |
234 | as headers have been successfully received from the remote server (not on |
221 | locally-generated errors). |
235 | locally-generated errors). |
… | |
… | |
226 | |
240 | |
227 | This callback is useful, among other things, to quickly reject unwanted |
241 | This callback is useful, among other things, to quickly reject unwanted |
228 | content, which, if it is supposed to be rare, can be faster than first |
242 | content, which, if it is supposed to be rare, can be faster than first |
229 | doing a C<HEAD> request. |
243 | doing a C<HEAD> request. |
230 | |
244 | |
|
|
245 | The downside is that cancelling the request makes it impossible to re-use |
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|
246 | the connection. Also, the C<on_header> callback will not receive any |
|
|
247 | trailer (headers sent after the response body). |
|
|
248 | |
231 | Example: cancel the request unless the content-type is "text/html". |
249 | Example: cancel the request unless the content-type is "text/html". |
232 | |
250 | |
233 | on_header => sub { |
251 | on_header => sub { |
234 | $_[0]{"content-type"} =~ /^text\/html\s*(?:;|$)/ |
252 | $_[0]{"content-type"} =~ /^text\/html\s*(?:;|$)/ |
235 | }, |
253 | }, |
… | |
… | |
241 | string instead of the body data. |
259 | string instead of the body data. |
242 | |
260 | |
243 | It has to return either true (in which case AnyEvent::HTTP will continue), |
261 | It has to return either true (in which case AnyEvent::HTTP will continue), |
244 | or false, in which case AnyEvent::HTTP will cancel the download (and call |
262 | or false, in which case AnyEvent::HTTP will cancel the download (and call |
245 | the completion callback with an error code of C<598>). |
263 | the completion callback with an error code of C<598>). |
|
|
264 | |
|
|
265 | The downside to cancelling the request is that it makes it impossible to |
|
|
266 | re-use the connection. |
246 | |
267 | |
247 | This callback is useful when the data is too large to be held in memory |
268 | This callback is useful when the data is too large to be held in memory |
248 | (so the callback writes it to a file) or when only some information should |
269 | (so the callback writes it to a file) or when only some information should |
249 | be extracted, or when the body should be processed incrementally. |
270 | be extracted, or when the body should be processed incrementally. |
250 | |
271 | |
… | |
… | |
276 | If you think you need this, first have a look at C<on_body>, to see if |
297 | If you think you need this, first have a look at C<on_body>, to see if |
277 | that doesn't solve your problem in a better way. |
298 | that doesn't solve your problem in a better way. |
278 | |
299 | |
279 | =back |
300 | =back |
280 | |
301 | |
281 | Example: make a simple HTTP GET request for http://www.nethype.de/ |
302 | Example: do a simple HTTP GET request for http://www.nethype.de/ and print |
|
|
303 | the response body. |
282 | |
304 | |
283 | http_request GET => "http://www.nethype.de/", sub { |
305 | http_request GET => "http://www.nethype.de/", sub { |
284 | my ($body, $hdr) = @_; |
306 | my ($body, $hdr) = @_; |
285 | print "$body\n"; |
307 | print "$body\n"; |
286 | }; |
308 | }; |
287 | |
309 | |
288 | Example: make a HTTP HEAD request on https://www.google.com/, use a |
310 | Example: do a HTTP HEAD request on https://www.google.com/, use a |
289 | timeout of 30 seconds. |
311 | timeout of 30 seconds. |
290 | |
312 | |
291 | http_request |
313 | http_request |
292 | GET => "https://www.google.com", |
314 | GET => "https://www.google.com", |
293 | timeout => 30, |
315 | timeout => 30, |
… | |
… | |
296 | use Data::Dumper; |
318 | use Data::Dumper; |
297 | print Dumper $hdr; |
319 | print Dumper $hdr; |
298 | } |
320 | } |
299 | ; |
321 | ; |
300 | |
322 | |
301 | Example: make another simple HTTP GET request, but immediately try to |
323 | Example: do another simple HTTP GET request, but immediately try to |
302 | cancel it. |
324 | cancel it. |
303 | |
325 | |
304 | my $request = http_request GET => "http://www.nethype.de/", sub { |
326 | my $request = http_request GET => "http://www.nethype.de/", sub { |
305 | my ($body, $hdr) = @_; |
327 | my ($body, $hdr) = @_; |
306 | print "$body\n"; |
328 | print "$body\n"; |
… | |
… | |
338 | push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; |
360 | push @{ $CO_SLOT{$_[0]}[1] }, $_[1]; |
339 | |
361 | |
340 | _slot_schedule $_[0]; |
362 | _slot_schedule $_[0]; |
341 | } |
363 | } |
342 | |
364 | |
|
|
365 | # continue to parse $_ for headers and place them into the arg |
|
|
366 | sub parse_hdr() { |
|
|
367 | my %hdr; |
|
|
368 | |
|
|
369 | # things seen, not parsed: |
|
|
370 | # p3pP="NON CUR OTPi OUR NOR UNI" |
|
|
371 | |
|
|
372 | $hdr{lc $1} .= ",$2" |
|
|
373 | while /\G |
|
|
374 | ([^:\000-\037]*): |
|
|
375 | [\011\040]* |
|
|
376 | ((?: [^\012]+ | \012[\011\040] )*) |
|
|
377 | \012 |
|
|
378 | /gxc; |
|
|
379 | |
|
|
380 | /\G$/ |
|
|
381 | or return; |
|
|
382 | |
|
|
383 | # remove the "," prefix we added to all headers above |
|
|
384 | substr $_, 0, 1, "" |
|
|
385 | for values %hdr; |
|
|
386 | |
|
|
387 | \%hdr |
|
|
388 | } |
|
|
389 | |
343 | our $qr_nlnl = qr{(?<![^\012])\015?\012}; |
390 | our $qr_nlnl = qr{(?<![^\012])\015?\012}; |
344 | |
391 | |
345 | our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 }; |
392 | our $TLS_CTX_LOW = { cache => 1, sslv2 => 1 }; |
346 | our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" }; |
393 | our $TLS_CTX_HIGH = { cache => 1, verify => 1, verify_peername => "https" }; |
347 | |
394 | |
… | |
… | |
366 | my @pseudo = (URL => $url); |
413 | my @pseudo = (URL => $url); |
367 | push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect}; |
414 | push @pseudo, Redirect => delete $arg{Redirect} if exists $arg{Redirect}; |
368 | |
415 | |
369 | my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE; |
416 | my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE; |
370 | |
417 | |
371 | return $cb->(undef, { Status => 599, Reason => "Too many redirections", @pseudo }) |
418 | return $cb->(undef, { @pseudo, Status => 599, Reason => "Too many redirections" }) |
372 | if $recurse < 0; |
419 | if $recurse < 0; |
373 | |
420 | |
374 | my $proxy = $arg{proxy} || $PROXY; |
421 | my $proxy = $arg{proxy} || $PROXY; |
375 | my $timeout = $arg{timeout} || $TIMEOUT; |
422 | my $timeout = $arg{timeout} || $TIMEOUT; |
376 | |
423 | |
… | |
… | |
379 | |
426 | |
380 | $uscheme = lc $uscheme; |
427 | $uscheme = lc $uscheme; |
381 | |
428 | |
382 | my $uport = $uscheme eq "http" ? 80 |
429 | my $uport = $uscheme eq "http" ? 80 |
383 | : $uscheme eq "https" ? 443 |
430 | : $uscheme eq "https" ? 443 |
384 | : return $cb->(undef, { Status => 599, Reason => "Only http and https URL schemes supported", @pseudo }); |
431 | : return $cb->(undef, { @pseudo, Status => 599, Reason => "Only http and https URL schemes supported" }); |
385 | |
432 | |
386 | $uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x |
433 | $uauthority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x |
387 | or return $cb->(undef, { Status => 599, Reason => "Unparsable URL", @pseudo }); |
434 | or return $cb->(undef, { @pseudo, Status => 599, Reason => "Unparsable URL" }); |
388 | |
435 | |
389 | my $uhost = $1; |
436 | my $uhost = $1; |
390 | $uport = $2 if defined $2; |
437 | $uport = $2 if defined $2; |
391 | |
438 | |
392 | $hdr{host} = defined $2 ? "$uhost:$2" : "$uhost" |
439 | $hdr{host} = defined $2 ? "$uhost:$2" : "$uhost" |
… | |
… | |
441 | } else { |
488 | } else { |
442 | ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath); |
489 | ($rhost, $rport, $rscheme, $rpath) = ($uhost, $uport, $uscheme, $upath); |
443 | } |
490 | } |
444 | |
491 | |
445 | # leave out fragment and query string, just a heuristic |
492 | # leave out fragment and query string, just a heuristic |
446 | $hdr{referer} ||= "$uscheme://$uauthority$upath" unless exists $hdr{referer}; |
493 | $hdr{referer} = "$uscheme://$uauthority$upath" unless exists $hdr{referer}; |
447 | $hdr{"user-agent"} ||= $USERAGENT unless exists $hdr{"user-agent"}; |
494 | $hdr{"user-agent"} = $USERAGENT unless exists $hdr{"user-agent"}; |
448 | |
495 | |
449 | $hdr{"content-length"} = length $arg{body} |
496 | $hdr{"content-length"} = length $arg{body} |
450 | if length $arg{body} || $method ne "GET"; |
497 | if length $arg{body} || $method ne "GET"; |
451 | |
498 | |
|
|
499 | $hdr{connection} = "close TE"; #1.1 |
|
|
500 | $hdr{te} = "trailers" unless exists $hdr{te}; #1.1 |
|
|
501 | |
452 | my %state = (connect_guard => 1); |
502 | my %state = (connect_guard => 1); |
453 | |
503 | |
454 | _get_slot $uhost, sub { |
504 | _get_slot $uhost, sub { |
455 | $state{slot_guard} = shift; |
505 | $state{slot_guard} = shift; |
456 | |
506 | |
457 | return unless $state{connect_guard}; |
507 | return unless $state{connect_guard}; |
458 | |
508 | |
459 | $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub { |
509 | my $connect_cb = sub { |
460 | $state{fh} = shift |
510 | $state{fh} = shift |
461 | or do { |
511 | or do { |
462 | my $err = "$!"; |
512 | my $err = "$!"; |
463 | %state = (); |
513 | %state = (); |
464 | return $cb->(undef, { Status => 599, Reason => $err, @pseudo }); |
514 | return $cb->(undef, { @pseudo, Status => 599, Reason => $err }); |
465 | }; |
515 | }; |
466 | |
516 | |
467 | pop; # free memory, save a tree |
517 | pop; # free memory, save a tree |
468 | |
518 | |
469 | return unless delete $state{connect_guard}; |
519 | return unless delete $state{connect_guard}; |
… | |
… | |
475 | tls_ctx => $arg{tls_ctx}, |
525 | tls_ctx => $arg{tls_ctx}, |
476 | # these need to be reconfigured on keepalive handles |
526 | # these need to be reconfigured on keepalive handles |
477 | timeout => $timeout, |
527 | timeout => $timeout, |
478 | on_error => sub { |
528 | on_error => sub { |
479 | %state = (); |
529 | %state = (); |
480 | $cb->(undef, { Status => 599, Reason => $_[2], @pseudo }); |
530 | $cb->(undef, { @pseudo, Status => 599, Reason => $_[2] }); |
481 | }, |
531 | }, |
482 | on_eof => sub { |
532 | on_eof => sub { |
483 | %state = (); |
533 | %state = (); |
484 | $cb->(undef, { Status => 599, Reason => "Unexpected end-of-file", @pseudo }); |
534 | $cb->(undef, { @pseudo, Status => 599, Reason => "Unexpected end-of-file" }); |
485 | }, |
535 | }, |
486 | ; |
536 | ; |
487 | |
537 | |
488 | # limit the number of persistent connections |
538 | # limit the number of persistent connections |
489 | # keepalive not yet supported |
539 | # keepalive not yet supported |
… | |
… | |
491 | # ++$KA_COUNT{$_[1]}; |
541 | # ++$KA_COUNT{$_[1]}; |
492 | # $state{handle}{ka_count_guard} = AnyEvent::Util::guard { |
542 | # $state{handle}{ka_count_guard} = AnyEvent::Util::guard { |
493 | # --$KA_COUNT{$_[1]} |
543 | # --$KA_COUNT{$_[1]} |
494 | # }; |
544 | # }; |
495 | # $hdr{connection} = "keep-alive"; |
545 | # $hdr{connection} = "keep-alive"; |
496 | # } else { |
|
|
497 | delete $hdr{connection}; |
|
|
498 | # } |
546 | # } |
499 | |
547 | |
500 | $state{handle}->starttls ("connect") if $rscheme eq "https"; |
548 | $state{handle}->starttls ("connect") if $rscheme eq "https"; |
501 | |
549 | |
502 | # handle actual, non-tunneled, request |
550 | # handle actual, non-tunneled, request |
503 | my $handle_actual_request = sub { |
551 | my $handle_actual_request = sub { |
504 | $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls}; |
552 | $state{handle}->starttls ("connect") if $uscheme eq "https" && !exists $state{handle}{tls}; |
505 | |
553 | |
506 | # send request |
554 | # send request |
507 | $state{handle}->push_write ( |
555 | $state{handle}->push_write ( |
508 | "$method $rpath HTTP/1.0\015\012" |
556 | "$method $rpath HTTP/1.1\015\012" |
509 | . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr) |
557 | . (join "", map "\u$_: $hdr{$_}\015\012", grep defined $hdr{$_}, keys %hdr) |
510 | . "\015\012" |
558 | . "\015\012" |
511 | . (delete $arg{body}) |
559 | . (delete $arg{body}) |
512 | ); |
560 | ); |
513 | |
561 | |
… | |
… | |
515 | return unless %state; |
563 | return unless %state; |
516 | |
564 | |
517 | %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use |
565 | %hdr = (); # reduce memory usage, save a kitten, also make it possible to re-use |
518 | |
566 | |
519 | # status line and headers |
567 | # status line and headers |
520 | $state{handle}->push_read (line => $qr_nlnl, sub { |
568 | $state{read_response} = sub { |
521 | for ("$_[1]") { |
569 | for ("$_[1]") { |
522 | y/\015//d; # weed out any \015, as they show up in the weirdest of places. |
570 | y/\015//d; # weed out any \015, as they show up in the weirdest of places. |
523 | |
571 | |
524 | /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )? \015?\012/igxc |
572 | /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\012]*) )? \012/igxc |
525 | or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid server response", @pseudo })); |
573 | or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid server response" })); |
|
|
574 | |
|
|
575 | # 100 Continue handling |
|
|
576 | # should not happen as we don't send expect: 100-continue, |
|
|
577 | # but we handle it just in case. |
|
|
578 | # since we send the request body regardless, if we get an error |
|
|
579 | # we are out of-sync, which we currently do NOT handle correctly. |
|
|
580 | return $state{handle}->push_read (line => $qr_nlnl, $state{read_response}) |
|
|
581 | if $2 eq 100; |
526 | |
582 | |
527 | push @pseudo, |
583 | push @pseudo, |
528 | HTTPVersion => $1, |
584 | HTTPVersion => $1, |
529 | Status => $2, |
585 | Status => $2, |
530 | Reason => $3, |
586 | Reason => $3, |
531 | ; |
587 | ; |
532 | |
588 | |
533 | # things seen, not parsed: |
589 | my $hdr = parse_hdr |
534 | # p3pP="NON CUR OTPi OUR NOR UNI" |
|
|
535 | |
|
|
536 | $hdr{lc $1} .= ",$2" |
|
|
537 | while /\G |
|
|
538 | ([^:\000-\037]*): |
|
|
539 | [\011\040]* |
|
|
540 | ((?: [^\012]+ | \012[\011\040] )*) |
|
|
541 | \012 |
|
|
542 | /gxc; |
|
|
543 | |
|
|
544 | /\G$/ |
|
|
545 | or return (%state = (), $cb->(undef, { Status => 599, Reason => "Garbled response headers", @pseudo })); |
590 | or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Garbled response headers" })); |
|
|
591 | |
|
|
592 | %hdr = (%$hdr, @pseudo); |
546 | } |
593 | } |
547 | |
|
|
548 | # remove the "," prefix we added to all headers above |
|
|
549 | substr $_, 0, 1, "" |
|
|
550 | for values %hdr; |
|
|
551 | |
|
|
552 | # patch in all pseudo headers |
|
|
553 | %hdr = (%hdr, @pseudo); |
|
|
554 | |
594 | |
555 | # redirect handling |
595 | # redirect handling |
556 | # microsoft and other shitheads don't give a shit for following standards, |
596 | # microsoft and other shitheads don't give a shit for following standards, |
557 | # try to support some common forms of broken Location headers. |
597 | # try to support some common forms of broken Location headers. |
558 | if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) { |
598 | if ($hdr{location} !~ /^(?: $ | [^:\/?\#]+ : )/x) { |
… | |
… | |
585 | } elsif ($status == 307) { |
625 | } elsif ($status == 307) { |
586 | $redirect = 1; |
626 | $redirect = 1; |
587 | } |
627 | } |
588 | } |
628 | } |
589 | |
629 | |
590 | my $finish = sub { |
630 | my $finish = sub { # ($data, $err_status, $err_reason[, $keepalive]) |
|
|
631 | my $keepalive = pop; |
|
|
632 | |
591 | $state{handle}->destroy if $state{handle}; |
633 | $state{handle}->destroy if $state{handle}; |
592 | %state = (); |
634 | %state = (); |
593 | |
635 | |
|
|
636 | if (defined $_[1]) { |
|
|
637 | $hdr{OrigStatus} = $hdr{Status}; $hdr{Status} = $_[1]; |
|
|
638 | $hdr{OrigReason} = $hdr{Reason}; $hdr{Reason} = $_[2]; |
|
|
639 | } |
|
|
640 | |
594 | # set-cookie processing |
641 | # set-cookie processing |
595 | if ($arg{cookie_jar}) { |
642 | if ($arg{cookie_jar}) { |
596 | for ($_[1]{"set-cookie"}) { |
643 | for ($hdr{"set-cookie"}) { |
597 | # parse NAME=VALUE |
644 | # parse NAME=VALUE |
598 | my @kv; |
645 | my @kv; |
599 | |
646 | |
600 | while (/\G\s* ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )/gcxs) { |
647 | while (/\G\s* ([^=;,[:space:]]+) \s*=\s* (?: "((?:[^\\"]+|\\.)*)" | ([^=;,[:space:]]*) )/gcxs) { |
601 | my $name = $1; |
648 | my $name = $1; |
… | |
… | |
647 | # we also access %hdr, as $_[1] might be an erro |
694 | # we also access %hdr, as $_[1] might be an erro |
648 | http_request ( |
695 | http_request ( |
649 | $method => $hdr{location}, |
696 | $method => $hdr{location}, |
650 | %arg, |
697 | %arg, |
651 | recurse => $recurse - 1, |
698 | recurse => $recurse - 1, |
652 | Redirect => \@_, |
699 | Redirect => [$_[0], \%hdr], |
653 | $cb); |
700 | $cb); |
654 | } else { |
701 | } else { |
655 | $cb->($_[0], $_[1]); |
702 | $cb->($_[0], \%hdr); |
656 | } |
703 | } |
657 | }; |
704 | }; |
658 | |
705 | |
659 | my $len = $hdr{"content-length"}; |
706 | my $len = $hdr{"content-length"}; |
660 | |
707 | |
661 | if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) { |
708 | if (!$redirect && $arg{on_header} && !$arg{on_header}(\%hdr)) { |
662 | $finish->(undef, { Status => 598, Reason => "Request cancelled by on_header", @pseudo }); |
709 | $finish->(undef, 598 => "Request cancelled by on_header"); |
663 | } elsif ( |
710 | } elsif ( |
664 | $hdr{Status} =~ /^(?:1..|[23]04)$/ |
711 | $hdr{Status} =~ /^(?:1..|204|205|304)$/ |
665 | or $method eq "HEAD" |
712 | or $method eq "HEAD" |
666 | or (defined $len && !$len) |
713 | or (defined $len && !$len) |
667 | ) { |
714 | ) { |
668 | # no body |
715 | # no body |
669 | $finish->("", \%hdr); |
716 | $finish->("", undef, undef, 1); |
670 | } else { |
717 | } else { |
671 | # body handling, four different code paths |
718 | # body handling, many different code paths |
672 | # for want_body_handle, on_body (2x), normal (2x) |
719 | # - no body expected |
673 | # we might read too much here, but it does not matter yet (no pers. connections) |
720 | # - want_body_handle |
|
|
721 | # - te chunked |
|
|
722 | # - 2x length known (with or without on_body) |
|
|
723 | # - 2x length not known (with or without on_body) |
674 | if (!$redirect && $arg{want_body_handle}) { |
724 | if (!$redirect && $arg{want_body_handle}) { |
675 | $_[0]->on_eof (undef); |
725 | $_[0]->on_eof (undef); |
676 | $_[0]->on_error (undef); |
726 | $_[0]->on_error (undef); |
677 | $_[0]->on_read (undef); |
727 | $_[0]->on_read (undef); |
678 | |
728 | |
679 | $finish->(delete $state{handle}, \%hdr); |
729 | $finish->(delete $state{handle}); |
|
|
730 | |
|
|
731 | } elsif ($hdr{"transfer-encoding"} =~ /\bchunked\b/i) { |
|
|
732 | my $cl = 0; |
|
|
733 | my $body = undef; |
|
|
734 | my $on_body = $arg{on_body} || sub { $body .= shift; 1 }; |
|
|
735 | |
|
|
736 | $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) }); |
|
|
737 | |
|
|
738 | my $read_chunk; $read_chunk = sub { |
|
|
739 | $_[1] =~ /^([0-9a-fA-F]+)/ |
|
|
740 | or $finish->(undef, 599 => "Garbled chunked transfer encoding"); |
|
|
741 | |
|
|
742 | my $len = hex $1; |
|
|
743 | |
|
|
744 | if ($len) { |
|
|
745 | $cl += $len; |
|
|
746 | |
|
|
747 | $_[0]->push_read (chunk => $len, sub { |
|
|
748 | $on_body->($_[1], \%hdr) |
|
|
749 | or return $finish->(undef, 598 => "Request cancelled by on_body"); |
|
|
750 | |
|
|
751 | $_[0]->push_read (line => sub { |
|
|
752 | length $_[1] |
|
|
753 | and return $finish->(undef, 599 => "Garbled chunked transfer encoding"); |
|
|
754 | $_[0]->push_read (line => $read_chunk); |
|
|
755 | }); |
|
|
756 | }); |
|
|
757 | } else { |
|
|
758 | $hdr{"content-length"} ||= $cl; |
|
|
759 | |
|
|
760 | $_[0]->push_read (line => $qr_nlnl, sub { |
|
|
761 | if (length $_[1]) { |
|
|
762 | for ("$_[1]") { |
|
|
763 | y/\015//d; # weed out any \015, as they show up in the weirdest of places. |
|
|
764 | |
|
|
765 | my $hdr = parse_hdr |
|
|
766 | or return $finish->(undef, 599 => "Garbled response trailers"); |
|
|
767 | |
|
|
768 | %hdr = (%hdr, %$hdr); |
|
|
769 | } |
|
|
770 | } |
|
|
771 | |
|
|
772 | $finish->($body, undef, undef, 1); |
|
|
773 | }); |
|
|
774 | } |
|
|
775 | }; |
|
|
776 | |
|
|
777 | $_[0]->push_read (line => $read_chunk); |
680 | |
778 | |
681 | } elsif ($arg{on_body}) { |
779 | } elsif ($arg{on_body}) { |
682 | $_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) }); |
780 | $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) }); |
|
|
781 | |
683 | if ($len) { |
782 | if ($len) { |
684 | $_[0]->on_eof (undef); |
|
|
685 | $_[0]->on_read (sub { |
783 | $_[0]->on_read (sub { |
686 | $len -= length $_[0]{rbuf}; |
784 | $len -= length $_[0]{rbuf}; |
687 | |
785 | |
688 | $arg{on_body}(delete $_[0]{rbuf}, \%hdr) |
786 | $arg{on_body}(delete $_[0]{rbuf}, \%hdr) |
689 | or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo }); |
787 | or return $finish->(undef, 598 => "Request cancelled by on_body"); |
690 | |
788 | |
691 | $len > 0 |
789 | $len > 0 |
692 | or $finish->("", \%hdr); |
790 | or $finish->("", undef, undef, 1); |
693 | }); |
791 | }); |
694 | } else { |
792 | } else { |
695 | $_[0]->on_eof (sub { |
793 | $_[0]->on_eof (sub { |
696 | $finish->("", \%hdr); |
794 | $finish->(""); |
697 | }); |
795 | }); |
698 | $_[0]->on_read (sub { |
796 | $_[0]->on_read (sub { |
699 | $arg{on_body}(delete $_[0]{rbuf}, \%hdr) |
797 | $arg{on_body}(delete $_[0]{rbuf}, \%hdr) |
700 | or $finish->(undef, { Status => 598, Reason => "Request cancelled by on_body", @pseudo }); |
798 | or $finish->(undef, 598 => "Request cancelled by on_body"); |
701 | }); |
799 | }); |
702 | } |
800 | } |
703 | } else { |
801 | } else { |
704 | $_[0]->on_eof (undef); |
802 | $_[0]->on_eof (undef); |
705 | |
803 | |
706 | if ($len) { |
804 | if ($len) { |
707 | $_[0]->on_error (sub { $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }) }); |
805 | $_[0]->on_error (sub { $finish->(undef, 599 => $_[2]) }); |
708 | $_[0]->on_read (sub { |
806 | $_[0]->on_read (sub { |
709 | $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), \%hdr) |
807 | $finish->((substr delete $_[0]{rbuf}, 0, $len, ""), undef, undef, 1) |
710 | if $len <= length $_[0]{rbuf}; |
808 | if $len <= length $_[0]{rbuf}; |
711 | }); |
809 | }); |
712 | } else { |
810 | } else { |
713 | $_[0]->on_error (sub { |
811 | $_[0]->on_error (sub { |
714 | ($! == Errno::EPIPE || !$!) |
812 | ($! == Errno::EPIPE || !$!) |
715 | ? $finish->(delete $_[0]{rbuf}, \%hdr) |
813 | ? $finish->(delete $_[0]{rbuf}) |
716 | : $finish->(undef, { Status => 599, Reason => $_[2], @pseudo }); |
814 | : $finish->(undef, 599 => $_[2]); |
717 | }); |
815 | }); |
718 | $_[0]->on_read (sub { }); |
816 | $_[0]->on_read (sub { }); |
719 | } |
817 | } |
720 | } |
818 | } |
721 | } |
819 | } |
722 | }); |
820 | }; |
|
|
821 | |
|
|
822 | $state{handle}->push_read (line => $qr_nlnl, $state{read_response}); |
723 | }; |
823 | }; |
724 | |
824 | |
725 | # now handle proxy-CONNECT method |
825 | # now handle proxy-CONNECT method |
726 | if ($proxy && $uscheme eq "https") { |
826 | if ($proxy && $uscheme eq "https") { |
727 | # oh dear, we have to wrap it into a connect request |
827 | # oh dear, we have to wrap it into a connect request |
728 | |
828 | |
729 | # maybe re-use $uauthority with patched port? |
829 | # maybe re-use $uauthority with patched port? |
730 | $state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012"); |
830 | $state{handle}->push_write ("CONNECT $uhost:$uport HTTP/1.0\015\012Host: $uhost\015\012\015\012"); |
731 | $state{handle}->push_read (line => $qr_nlnl, sub { |
831 | $state{handle}->push_read (line => $qr_nlnl, sub { |
732 | $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix |
832 | $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) (?: \s+ ([^\015\012]*) )?/ix |
733 | or return (%state = (), $cb->(undef, { Status => 599, Reason => "Invalid proxy connect response ($_[1])", @pseudo })); |
833 | or return (%state = (), $cb->(undef, { @pseudo, Status => 599, Reason => "Invalid proxy connect response ($_[1])" })); |
734 | |
834 | |
735 | if ($2 == 200) { |
835 | if ($2 == 200) { |
736 | $rpath = $upath; |
836 | $rpath = $upath; |
737 | &$handle_actual_request; |
837 | &$handle_actual_request; |
738 | } else { |
838 | } else { |
739 | %state = (); |
839 | %state = (); |
740 | $cb->(undef, { Status => $2, Reason => $3, @pseudo }); |
840 | $cb->(undef, { @pseudo, Status => $2, Reason => $3 }); |
741 | } |
841 | } |
742 | }); |
842 | }); |
743 | } else { |
843 | } else { |
744 | &$handle_actual_request; |
844 | &$handle_actual_request; |
745 | } |
845 | } |
|
|
846 | }; |
746 | |
847 | |
747 | }, $arg{on_prepare} || sub { $timeout }; |
848 | my $tcp_connect = $arg{tcp_connect} |
|
|
849 | || do { require AnyEvent::Socket; \&AnyEvent::Socket::tcp_connect }; |
|
|
850 | |
|
|
851 | $state{connect_guard} = $tcp_connect->($rhost, $rport, $connect_cb, $arg{on_prepare} || sub { $timeout }); |
|
|
852 | |
748 | }; |
853 | }; |
749 | |
854 | |
750 | defined wantarray && AnyEvent::Util::guard { %state = () } |
855 | defined wantarray && AnyEvent::Util::guard { %state = () } |
751 | } |
856 | } |
752 | |
857 | |
… | |
… | |
787 | string of the form C<http://host:port> (optionally C<https:...>), croaks |
892 | string of the form C<http://host:port> (optionally C<https:...>), croaks |
788 | otherwise. |
893 | otherwise. |
789 | |
894 | |
790 | To clear an already-set proxy, use C<undef>. |
895 | To clear an already-set proxy, use C<undef>. |
791 | |
896 | |
|
|
897 | =item $date = AnyEvent::HTTP::format_date $timestamp |
|
|
898 | |
|
|
899 | Takes a POSIX timestamp (seconds since the epoch) and formats it as a HTTP |
|
|
900 | Date (RFC 2616). |
|
|
901 | |
|
|
902 | =item $timestamp = AnyEvent::HTTP::parse_date $date |
|
|
903 | |
|
|
904 | Takes a HTTP Date (RFC 2616) and returns the corresponding POSIX |
|
|
905 | timestamp, or C<undef> if the date cannot be parsed. |
|
|
906 | |
792 | =item $AnyEvent::HTTP::MAX_RECURSE |
907 | =item $AnyEvent::HTTP::MAX_RECURSE |
793 | |
908 | |
794 | The default value for the C<recurse> request parameter (default: C<10>). |
909 | The default value for the C<recurse> request parameter (default: C<10>). |
795 | |
910 | |
796 | =item $AnyEvent::HTTP::USERAGENT |
911 | =item $AnyEvent::HTTP::USERAGENT |
… | |
… | |
814 | connections. This number of can be useful for load-leveling. |
929 | connections. This number of can be useful for load-leveling. |
815 | |
930 | |
816 | =back |
931 | =back |
817 | |
932 | |
818 | =cut |
933 | =cut |
|
|
934 | |
|
|
935 | our @month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec); |
|
|
936 | our @weekday = qw(Sun Mon Tue Wed Thu Fri Sat); |
|
|
937 | |
|
|
938 | sub format_date($) { |
|
|
939 | my ($time) = @_; |
|
|
940 | |
|
|
941 | # RFC 822/1123 format |
|
|
942 | my ($S, $M, $H, $mday, $mon, $year, $wday, $yday, undef) = gmtime $time; |
|
|
943 | |
|
|
944 | sprintf "%s, %02d %s %04d %02d:%02d:%02d GMT", |
|
|
945 | $weekday[$wday], $mday, $month[$mon], $year + 1900, |
|
|
946 | $H, $M, $S; |
|
|
947 | } |
|
|
948 | |
|
|
949 | sub parse_date($) { |
|
|
950 | my ($date) = @_; |
|
|
951 | |
|
|
952 | my ($d, $m, $y, $H, $M, $S); |
|
|
953 | |
|
|
954 | if ($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$/) { |
|
|
955 | # RFC 822/1123, required by RFC 2616 |
|
|
956 | ($d, $m, $y, $H, $M, $S) = ($1, $2, $3, $4, $5, $6); |
|
|
957 | |
|
|
958 | } elsif ($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$/) { |
|
|
959 | # RFC 850 |
|
|
960 | ($d, $m, $y, $H, $M, $S) = ($1, $2, $3 < 69 ? $3 + 2000 : $3 + 1900, $4, $5, $6); |
|
|
961 | |
|
|
962 | } elsif ($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])$/) { |
|
|
963 | # ISO C's asctime |
|
|
964 | ($d, $m, $y, $H, $M, $S) = ($2, $1, $6, $3, $4, $5); |
|
|
965 | } |
|
|
966 | # other formats fail in the loop below |
|
|
967 | |
|
|
968 | for (0..11) { |
|
|
969 | if ($m eq $month[$_]) { |
|
|
970 | require Time::Local; |
|
|
971 | return Time::Local::timegm ($S, $M, $H, $d, $_, $y); |
|
|
972 | } |
|
|
973 | } |
|
|
974 | |
|
|
975 | undef |
|
|
976 | } |
819 | |
977 | |
820 | sub set_proxy($) { |
978 | sub set_proxy($) { |
821 | if (length $_[0]) { |
979 | if (length $_[0]) { |
822 | $_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix |
980 | $_[0] =~ m%^(https?):// ([^:/]+) (?: : (\d*) )?%ix |
823 | or Carp::croak "$_[0]: invalid proxy URL"; |
981 | or Carp::croak "$_[0]: invalid proxy URL"; |
… | |
… | |
830 | # initialise proxy from environment |
988 | # initialise proxy from environment |
831 | eval { |
989 | eval { |
832 | set_proxy $ENV{http_proxy}; |
990 | set_proxy $ENV{http_proxy}; |
833 | }; |
991 | }; |
834 | |
992 | |
|
|
993 | =head2 SOCKS PROXIES |
|
|
994 | |
|
|
995 | Socks proxies are not directly supported by AnyEvent::HTTP. You can |
|
|
996 | compile your perl to support socks, or use an external program such as |
|
|
997 | F<socksify> (dante) or F<tsocks> to make your program use a socks proxy |
|
|
998 | transparently. |
|
|
999 | |
|
|
1000 | Alternatively, for AnyEvent::HTTP only, you can use your own |
|
|
1001 | C<tcp_connect> function that does the proxy handshake - here is an example |
|
|
1002 | that works with socks4a proxies: |
|
|
1003 | |
|
|
1004 | use Errno; |
|
|
1005 | use AnyEvent::Util; |
|
|
1006 | use AnyEvent::Socket; |
|
|
1007 | use AnyEvent::Handle; |
|
|
1008 | |
|
|
1009 | # host, port and username of/for your socks4a proxy |
|
|
1010 | my $socks_host = "10.0.0.23"; |
|
|
1011 | my $socks_port = 9050; |
|
|
1012 | my $socks_user = ""; |
|
|
1013 | |
|
|
1014 | sub socks4a_connect { |
|
|
1015 | my ($host, $port, $connect_cb, $prepare_cb) = @_; |
|
|
1016 | |
|
|
1017 | my $hdl = new AnyEvent::Handle |
|
|
1018 | connect => [$socks_host, $socks_port], |
|
|
1019 | on_prepare => sub { $prepare_cb->($_[0]{fh}) }, |
|
|
1020 | on_error => sub { $connect_cb->() }, |
|
|
1021 | ; |
|
|
1022 | |
|
|
1023 | $hdl->push_write (pack "CCnNZ*Z*", 4, 1, $port, 1, $socks_user, $host); |
|
|
1024 | |
|
|
1025 | $hdl->push_read (chunk => 8, sub { |
|
|
1026 | my ($hdl, $chunk) = @_; |
|
|
1027 | my ($status, $port, $ipn) = unpack "xCna4", $chunk; |
|
|
1028 | |
|
|
1029 | if ($status == 0x5a) { |
|
|
1030 | $connect_cb->($hdl->{fh}, (format_address $ipn) . ":$port"); |
|
|
1031 | } else { |
|
|
1032 | $! = Errno::ENXIO; $connect_cb->(); |
|
|
1033 | } |
|
|
1034 | }); |
|
|
1035 | |
|
|
1036 | $hdl |
|
|
1037 | } |
|
|
1038 | |
|
|
1039 | Use C<socks4a_connect> instead of C<tcp_connect> when doing C<http_request>s, |
|
|
1040 | possibly after switching off other proxy types: |
|
|
1041 | |
|
|
1042 | AnyEvent::HTTP::set_proxy undef; # usually you do not want other proxies |
|
|
1043 | |
|
|
1044 | http_get 'http://www.google.com', tcp_connect => \&socks4a_connect, sub { |
|
|
1045 | my ($data, $headers) = @_; |
|
|
1046 | ... |
|
|
1047 | }; |
|
|
1048 | |
835 | =head1 SEE ALSO |
1049 | =head1 SEE ALSO |
836 | |
1050 | |
837 | L<AnyEvent>. |
1051 | L<AnyEvent>. |
838 | |
1052 | |
839 | =head1 AUTHOR |
1053 | =head1 AUTHOR |