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Revision 1.3 by root, Wed Jun 4 11:58:36 2008 UTC vs.
Revision 1.23 by root, Wed Jul 2 01:23:41 2008 UTC

… …
3AnyEvent::HTTP - simple but non-blocking HTTP/HTTPS client 3AnyEvent::HTTP - simple but non-blocking HTTP/HTTPS client
4 4
5=head1 SYNOPSIS 5=head1 SYNOPSIS
6 6
7 use AnyEvent::HTTP; 7 use AnyEvent::HTTP;
8
9 http_get "http://www.nethype.de/", sub { print $_[1] };
10
11 # ... do something else here
8 12
9=head1 DESCRIPTION 13=head1 DESCRIPTION
10 14
11This module is an L<AnyEvent> user, you need to make sure that you use and 15This module is an L<AnyEvent> user, you need to make sure that you use and
12run a supported event loop. 16run a supported event loop.
17
18This module implements a simple, stateless and non-blocking HTTP
19client. It supports GET, POST and other request methods, cookies and more,
20all on a very low level. It can follow redirects supports proxies and
21automatically limits the number of connections to the values specified in
22the RFC.
23
24It should generally be a "good client" that is enough for most HTTP
25tasks. Simple tasks should be simple, but complex tasks should still be
26possible as the user retains control over request and response headers.
27
28The caller is responsible for authentication management, cookies (if
29the simplistic implementation in this module doesn't suffice), referer
30and other high-level protocol details for which this module offers only
31limited support.
13 32
14=head2 METHODS 33=head2 METHODS
15 34
16=over 4 35=over 4
17 36
… …
29use AnyEvent::Socket (); 48use AnyEvent::Socket ();
30use AnyEvent::Handle (); 49use AnyEvent::Handle ();
31 50
32use base Exporter::; 51use base Exporter::;
33 52
34our $VERSION = '1.0'; 53our $VERSION = '1.03';
35 54
36our @EXPORT = qw(http_get http_request); 55our @EXPORT = qw(http_get http_post http_head http_request);
37 56
38our $USERAGENT = "Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)"; 57our $USERAGENT = "Mozilla/5.0 (compatible; AnyEvent::HTTP/$VERSION; +http://software.schmorp.de/pkg/AnyEvent)";
39our $MAX_RECURSE = 10; 58our $MAX_RECURSE = 10;
40our $MAX_PERSISTENT = 8; 59our $MAX_PERSISTENT = 8;
41our $PERSISTENT_TIMEOUT = 2; 60our $PERSISTENT_TIMEOUT = 2;
42our $TIMEOUT = 300; 61our $TIMEOUT = 300;
43 62
44# changing these is evil 63# changing these is evil
45our $MAX_PERSISTENT_PER_HOST = 2; 64our $MAX_PERSISTENT_PER_HOST = 2;
46our $MAX_PER_HOST = 4; # not respected yet :( 65our $MAX_PER_HOST = 4;
47 66
48our $PROXY; 67our $PROXY;
68our $ACTIVE = 0;
49 69
50my %KA_COUNT; # number of open keep-alive connections per host 70my %KA_COUNT; # number of open keep-alive connections per host
71my %CO_SLOT; # number of open connections, and wait queue, per host
51 72
52=item http_get $url, key => value..., $cb->($data, $headers) 73=item http_get $url, key => value..., $cb->($data, $headers)
53 74
54Executes 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
55additional parameters. 76additional parameters.
56 77
78=item http_head $url, key => value..., $cb->($data, $headers)
79
80Executes an HTTP-HEAD request. See the http_request function for details on
81additional parameters.
82
57=item http_get $url, $body, key => value..., $cb->($data, $headers) 83=item http_post $url, $body, key => value..., $cb->($data, $headers)
58 84
59Executes an HTTP-POST request with a requets body of C<$bod>. See the 85Executes an HTTP-POST request with a request body of C<$bod>. See the
60http_request function for details on additional parameters. 86http_request function for details on additional parameters.
61 87
62=item http_request $method => $url, key => value..., $cb->($data, $headers) 88=item http_request $method => $url, key => value..., $cb->($data, $headers)
63 89
64Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL 90Executes a HTTP request of type C<$method> (e.g. C<GET>, C<POST>). The URL
… …
66 92
67The callback will be called with the response data as first argument 93The callback will be called with the response data as first argument
68(or C<undef> if it wasn't available due to errors), and a hash-ref with 94(or C<undef> if it wasn't available due to errors), and a hash-ref with
69response headers as second argument. 95response headers as second argument.
70 96
71All the headers in that has are lowercased. In addition to the response 97All the headers in that hash are lowercased. In addition to the response
72headers, the three "pseudo-headers" C<HTTPVersion>, C<Status> and 98headers, the "pseudo-headers" C<HTTPVersion>, C<Status> and C<Reason>
73C<Reason> contain the three parts of the HTTP Status-Line of the same 99contain the three parts of the HTTP Status-Line of the same name. The
74name. 100pseudo-header C<URL> contains the original URL (which can differ from the
101requested URL when following redirects).
102
103If the server sends a header multiple lines, then their contents will be
104joined together with C<\x00>.
75 105
76If an internal error occurs, such as not being able to resolve a hostname, 106If an internal error occurs, such as not being able to resolve a hostname,
77then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<599> 107then C<$data> will be C<undef>, C<< $headers->{Status} >> will be C<599>
78and the C<Reason> pseudo-header will contain an error message. 108and the C<Reason> pseudo-header will contain an error message.
79 109
110A typical callback might look like this:
111
112 sub {
113 my ($body, $hdr) = @_;
114
115 if ($hdr->{Status} =~ /^2/) {
116 ... everything should be ok
117 } else {
118 print "error, $hdr->{Status} $hdr->{Reason}\n";
119 }
120 }
121
80Additional parameters are key-value pairs, and are fully optional. They 122Additional parameters are key-value pairs, and are fully optional. They
81include: 123include:
82 124
83=over 4 125=over 4
84 126
… …
87Whether to recurse requests or not, e.g. on redirects, authentication 129Whether to recurse requests or not, e.g. on redirects, authentication
88retries and so on, and how often to do so. 130retries and so on, and how often to do so.
89 131
90=item headers => hashref 132=item headers => hashref
91 133
92The request headers to use. 134The request headers to use. Currently, C<http_request> may provide its
135own C<Host:>, C<Content-Length:>, C<Connection:> and C<Cookie:> headers
136and will provide defaults for C<User-Agent:> and C<Referer:>.
93 137
94=item timeout => $seconds 138=item timeout => $seconds
95 139
96The time-out to use for various stages - each connect attempt will reset 140The time-out to use for various stages - each connect attempt will reset
97the timeout, as will read or write activity. Default timeout is 5 minutes. 141the timeout, as will read or write activity. Default timeout is 5 minutes.
… …
107=item body => $string 151=item body => $string
108 152
109The request body, usually empty. Will be-sent as-is (future versions of 153The request body, usually empty. Will be-sent as-is (future versions of
110this module might offer more options). 154this module might offer more options).
111 155
156=item cookie_jar => $hash_ref
157
158Passing this parameter enables (simplified) cookie-processing, loosely
159based on the original netscape specification.
160
161The C<$hash_ref> must be an (initially empty) hash reference which will
162get updated automatically. It is possible to save the cookie_jar to
163persistent storage with something like JSON or Storable, but this is not
164recommended, as expire times are currently being ignored.
165
166Note that this cookie implementation is not of very high quality, nor
167meant 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
169cookie-using sites working. Cookies are a privacy disaster, do not use
170them unless required to.
171
112=back 172=back
113 173
114=back 174Example: make a simple HTTP GET request for http://www.nethype.de/
175
176 http_request GET => "http://www.nethype.de/", sub {
177 my ($body, $hdr) = @_;
178 print "$body\n";
179 };
180
181Example: make a HTTP HEAD request on https://www.google.com/, use a
182timeout of 30 seconds.
183
184 http_request
185 GET => "https://www.google.com",
186 timeout => 30,
187 sub {
188 my ($body, $hdr) = @_;
189 use Data::Dumper;
190 print Dumper $hdr;
191 }
192 ;
115 193
116=cut 194=cut
117 195
196sub _slot_schedule;
197sub _slot_schedule($) {
198 my $host = shift;
199
200 while ($CO_SLOT{$host}[0] < $MAX_PER_HOST) {
201 if (my $cb = shift @{ $CO_SLOT{$host}[1] }) {
202 # somebody wants that slot
203 ++$CO_SLOT{$host}[0];
204 ++$ACTIVE;
205
206 $cb->(AnyEvent::Util::guard {
207 --$ACTIVE;
208 --$CO_SLOT{$host}[0];
209 _slot_schedule $host;
210 });
211 } else {
212 # nobody wants the slot, maybe we can forget about it
213 delete $CO_SLOT{$host} unless $CO_SLOT{$host}[0];
214 last;
215 }
216 }
217}
218
219# wait for a free slot on host, call callback
220sub _get_slot($$) {
221 push @{ $CO_SLOT{$_[0]}[1] }, $_[1];
222
223 _slot_schedule $_[0];
224}
225
118sub http_request($$$;@) { 226sub http_request($$@) {
119 my $cb = pop; 227 my $cb = pop;
120 my ($method, $url, %arg) = @_; 228 my ($method, $url, %arg) = @_;
121 229
122 my %hdr; 230 my %hdr;
123 231
124 $method = uc $method; 232 $method = uc $method;
125 233
126 if (my $hdr = delete $arg{headers}) { 234 if (my $hdr = $arg{headers}) {
127 while (my ($k, $v) = each %$hdr) { 235 while (my ($k, $v) = each %$hdr) {
128 $hdr{lc $k} = $v; 236 $hdr{lc $k} = $v;
129 } 237 }
130 } 238 }
131 239
240 my $recurse = exists $arg{recurse} ? delete $arg{recurse} : $MAX_RECURSE;
241
242 return $cb->(undef, { Status => 599, Reason => "recursion limit reached", URL => $url })
243 if $recurse < 0;
244
132 my $proxy = $arg{proxy} || $PROXY; 245 my $proxy = $arg{proxy} || $PROXY;
133 my $timeout = $arg{timeout} || $TIMEOUT; 246 my $timeout = $arg{timeout} || $TIMEOUT;
134 my $recurse = exists $arg{recurse} ? $arg{recurse} : $MAX_RECURSE;
135 247
136 $hdr{"user-agent"} ||= $USERAGENT; 248 $hdr{"user-agent"} ||= $USERAGENT;
137 249
138 my ($host, $port, $path, $scheme); 250 my ($scheme, $authority, $upath, $query, $fragment) =
251 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|;
252
253 $scheme = lc $scheme;
254
255 my $uport = $scheme eq "http" ? 80
256 : $scheme eq "https" ? 443
257 : return $cb->(undef, { Status => 599, Reason => "only http and https URL schemes supported", URL => $url });
258
259 $hdr{referer} ||= "$scheme://$authority$upath"; # leave out fragment and query string, just a heuristic
260
261 $authority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
262 or return $cb->(undef, { Status => 599, Reason => "unparsable URL", URL => $url });
263
264 my $uhost = $1;
265 $uport = $2 if defined $2;
266
267 $uhost =~ s/^\[(.*)\]$/$1/;
268 $upath .= "?$query" if length $query;
269
270 $upath =~ s%^/?%/%;
271
272 # cookie processing
273 if (my $jar = $arg{cookie_jar}) {
274 %$jar = () if $jar->{version} < 1;
275
276 my @cookie;
277
278 while (my ($chost, $v) = each %$jar) {
279 next unless $chost eq substr $uhost, -length $chost;
280 next unless $chost =~ /^\./;
281
282 while (my ($cpath, $v) = each %$v) {
283 next unless $cpath eq substr $upath, 0, length $cpath;
284
285 while (my ($k, $v) = each %$v) {
286 next if $scheme ne "https" && exists $v->{secure};
287 push @cookie, "$k=$v->{value}";
288 }
289 }
290 }
291
292 $hdr{cookie} = join "; ", @cookie
293 if @cookie;
294 }
295
296 my ($rhost, $rport, $rpath); # request host, port, path
139 297
140 if ($proxy) { 298 if ($proxy) {
141 ($host, $port, $scheme) = @$proxy; 299 ($rhost, $rport, $scheme) = @$proxy;
142 $path = $url; 300 $rpath = $url;
143 } else { 301 } else {
144 ($scheme, my $authority, $path, my $query, my $fragment) = 302 ($rhost, $rport, $rpath) = ($uhost, $uport, $upath);
145 $url =~ m|(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|;
146
147 $port = $scheme eq "http" ? 80
148 : $scheme eq "https" ? 443
149 : croak "$url: only http and https URLs supported";
150
151 $authority =~ /^(?: .*\@ )? ([^\@:]+) (?: : (\d+) )?$/x
152 or croak "$authority: unparsable URL";
153
154 $host = $1;
155 $port = $2 if defined $2;
156
157 $host =~ s/^\[(.*)\]$/$1/;
158 $path .= "?$query" if length $query;
159
160 $path = "/" unless $path;
161
162 $hdr{host} = $host = lc $host; 303 $hdr{host} = $uhost;
163 } 304 }
164 305
165 $scheme = lc $scheme;
166
167 my %state;
168
169 $state{body} = delete $arg{body};
170
171 $hdr{"content-length"} = length $state{body}; 306 $hdr{"content-length"} = length $arg{body};
172 307
308 my %state = (connect_guard => 1);
309
310 _get_slot $uhost, sub {
311 $state{slot_guard} = shift;
312
313 return unless $state{connect_guard};
314
173 $state{connect_guard} = AnyEvent::Socket::tcp_connect $host, $port, sub { 315 $state{connect_guard} = AnyEvent::Socket::tcp_connect $rhost, $rport, sub {
174 $state{fh} = shift 316 $state{fh} = shift
175 or return $cb->(undef, { Status => 599, Reason => "$!" }); 317 or return $cb->(undef, { Status => 599, Reason => "$!", URL => $url });
176 318
177 delete $state{connect_guard}; # reduce memory usage, save a tree 319 delete $state{connect_guard}; # reduce memory usage, save a tree
178 320
179 # get handle 321 # get handle
180 $state{handle} = new AnyEvent::Handle 322 $state{handle} = new AnyEvent::Handle
181 fh => $state{fh}, 323 fh => $state{fh},
182 ($scheme eq "https" ? (tls => "connect") : ()); 324 ($scheme eq "https" ? (tls => "connect") : ());
183 325
184 # limit the number of persistent connections 326 # limit the number of persistent connections
185 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) { 327 if ($KA_COUNT{$_[1]} < $MAX_PERSISTENT_PER_HOST) {
186 ++$KA_COUNT{$_[1]}; 328 ++$KA_COUNT{$_[1]};
187 $state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} }; 329 $state{handle}{ka_count_guard} = AnyEvent::Util::guard { --$KA_COUNT{$_[1]} };
188 $hdr{connection} = "keep-alive"; 330 $hdr{connection} = "keep-alive";
189 delete $hdr{connection}; # keep-alive not yet supported 331 delete $hdr{connection}; # keep-alive not yet supported
190 } else { 332 } else {
191 delete $hdr{connection}; 333 delete $hdr{connection};
192 } 334 }
193 335
194 # (re-)configure handle 336 # (re-)configure handle
195 $state{handle}->timeout ($timeout); 337 $state{handle}->timeout ($timeout);
196 $state{handle}->on_error (sub { 338 $state{handle}->on_error (sub {
339 my $errno = "$!";
197 %state = (); 340 %state = ();
198 $cb->(undef, { Status => 599, Reason => "$!" }); 341 $cb->(undef, { Status => 599, Reason => $errno, URL => $url });
199 }); 342 });
200 $state{handle}->on_eof (sub { 343 $state{handle}->on_eof (sub {
201 %state = (); 344 %state = ();
202 $cb->(undef, { Status => 599, Reason => "unexpected end-of-file" }); 345 $cb->(undef, { Status => 599, Reason => "unexpected end-of-file", URL => $url });
203 }); 346 });
204 347
205 # send request 348 # send request
206 $state{handle}->push_write ( 349 $state{handle}->push_write (
207 "$method $path HTTP/1.0\015\012" 350 "$method $rpath HTTP/1.0\015\012"
208 . (join "", map "$_: $hdr{$_}\015\012", keys %hdr) 351 . (join "", map "$_: $hdr{$_}\015\012", keys %hdr)
209 . "\015\012" 352 . "\015\012"
210 . (delete $state{body}) 353 . (delete $arg{body})
211 );
212
213 %hdr = (); # reduce memory usage, save a kitten
214
215 # status line
216 $state{handle}->push_read (line => qr/\015?\012/, sub {
217 $_[1] =~ /^HTTP\/([0-9\.]+) \s+ ([0-9]{3}) \s+ ([^\015\012]+)/ix
218 or return (%state = (), $cb->(undef, { Status => 599, Reason => "invalid server response ($_[1])" }));
219
220 my %hdr = ( # response headers
221 HTTPVersion => ",$1",
222 Status => ",$2",
223 Reason => ",$3",
224 ); 354 );
225 355
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 );
369
226 # headers, could be optimized a bit 370 # headers, could be optimized a bit
227 $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub { 371 $state{handle}->unshift_read (line => qr/\015?\012\015?\012/, sub {
228 for ("$_[1]\012") { 372 for ("$_[1]\012") {
229 # we support spaces in field names, as lotus domino 373 # we support spaces in field names, as lotus domino
230 # creates them. 374 # creates them.
231 $hdr{lc $1} .= ",$2" 375 $hdr{lc $1} .= "\x00$2"
232 while /\G 376 while /\G
233 ([^:\000-\037]+): 377 ([^:\000-\037]+):
234 [\011\040]* 378 [\011\040]*
235 ((?: [^\015\012]+ | \015?\012[\011\040] )*) 379 ((?: [^\015\012]+ | \015?\012[\011\040] )*)
236 \015?\012 380 \015?\012
237 /gxc; 381 /gxc;
238 382
239 /\G$/ 383 /\G$/
240 or return $cb->(undef, { Status => 599, Reason => "garbled response headers" }); 384 or return (%state = (), $cb->(undef, { Status => 599, Reason => "garbled response headers", URL => $url }));
241 } 385 }
242 386
243 substr $_, 0, 1, "" 387 substr $_, 0, 1, ""
244 for values %hdr; 388 for values %hdr;
245 389
246 if ($method ne "HEAD") { 390 my $finish = sub {
247 if (exists $hdr{"content-length"}) { 391 %state = ();
248 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub { 392
249 # could cache persistent connection now 393 # set-cookie processing
250 if ($hdr{connection} =~ /\bkeep-alive\b/i) { 394 if ($arg{cookie_jar} && exists $hdr{"set-cookie"}) {
251 # but we don't, due to misdesigns, this is annoyingly complex 395 for (split /\x00/, $hdr{"set-cookie"}) {
396 my ($cookie, @arg) = split /;\s*/;
397 my ($name, $value) = split /=/, $cookie, 2;
398 my %kv = (value => $value, map { split /=/, $_, 2 } @arg);
399
400 my $cdom = (delete $kv{domain}) || $uhost;
401 my $cpath = (delete $kv{path}) || "/";
402
403 $cdom =~ s/^.?/./; # make sure it starts with a "."
404
405 next if $cdom =~ /\.$/;
406
407 # this is not rfc-like and not netscape-like. go figure.
408 my $ndots = $cdom =~ y/.//;
409 next if $ndots < ($cdom =~ /\.[^.][^.]\.[^.][^.]$/ ? 3 : 2);
410
411 # store it
412 $arg{cookie_jar}{version} = 1;
413 $arg{cookie_jar}{$cdom}{$cpath}{$name} = \%kv;
252 }; 414 }
253
254 %state = ();
255 $cb->($_[1], \%hdr);
256 }); 415 }
416
417 if ($_[1]{Status} =~ /^30[12]$/ && $recurse && $method ne "POST") {
418 # microsoft and other assholes don't give a shit for following standards,
419 # try to support a common form of broken Location header.
420 $_[1]{location} =~ s%^/%$scheme://$uhost:$uport/%;
421
422 # apparently, mozilla et al. just change POST to GET here
423 # more research is needed before we do the same
424
425 http_request ($method, $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
426 } elsif ($_[1]{Status} == 303 && $recurse) {
427 $_[1]{location} =~ s%^/%$scheme://$uhost:$uport/%;
428
429 http_request (GET => $_[1]{location}, %arg, recurse => $recurse - 1, $cb);
430 } else {
431 $cb->($_[0], $_[1]);
432 }
433 };
434
435 if ($hdr{Status} =~ /^(?:1..|204|304)$/ or $method eq "HEAD") {
436 $finish->(undef, \%hdr);
257 } else { 437 } else {
438 if (exists $hdr{"content-length"}) {
439 $_[0]->unshift_read (chunk => $hdr{"content-length"}, sub {
440 # could cache persistent connection now
441 if ($hdr{connection} =~ /\bkeep-alive\b/i) {
442 # but we don't, due to misdesigns, this is annoyingly complex
443 };
444
445 $finish->($_[1], \%hdr);
446 });
447 } else {
258 # too bad, need to read until we get an error or EOF, 448 # too bad, need to read until we get an error or EOF,
259 # no way to detect winged data. 449 # no way to detect winged data.
260 $_[0]->on_error (sub { 450 $_[0]->on_error (sub {
261 %state = ();
262 $cb->($_[0]{rbuf}, \%hdr); 451 $finish->($_[0]{rbuf}, \%hdr);
263 }); 452 });
264 $_[0]->on_eof (undef); 453 $_[0]->on_eof (undef);
265 $_[0]->on_read (sub { }); 454 $_[0]->on_read (sub { });
455 }
266 } 456 }
267 } 457 });
268 }); 458 });
459 }, sub {
460 $timeout
269 }); 461 };
270 }, sub {
271 $timeout
272 }; 462 };
273 463
274 defined wantarray && AnyEvent::Util::guard { %state = () } 464 defined wantarray && AnyEvent::Util::guard { %state = () }
275} 465}
276 466
277sub http_get($$;@) { 467sub http_get($@) {
278 unshift @_, "GET"; 468 unshift @_, "GET";
279 &http_request 469 &http_request
280} 470}
281 471
282sub http_post($$$;@) { 472sub http_head($@) {
283 unshift @_, "POST", "body"; 473 unshift @_, "HEAD";
284 &http_request 474 &http_request
285} 475}
476
477sub http_post($$@) {
478 my $url = shift;
479 unshift @_, "POST", $url, "body";
480 &http_request
481}
482
483=back
286 484
287=head2 GLOBAL FUNCTIONS AND VARIABLES 485=head2 GLOBAL FUNCTIONS AND VARIABLES
288 486
289=over 4 487=over 4
290 488
… …
312 510
313The maximum time to cache a persistent connection, in seconds (default: 2). 511The maximum time to cache a persistent connection, in seconds (default: 2).
314 512
315Not implemented currently. 513Not implemented currently.
316 514
515=item $AnyEvent::HTTP::ACTIVE
516
517The number of active connections. This is not the number of currently
518running requests, but the number of currently open and non-idle TCP
519connections. This number of can be useful for load-leveling.
520
317=back 521=back
318 522
319=cut 523=cut
320 524
321sub set_proxy($) { 525sub set_proxy($) {
… …
329 533
330L<AnyEvent>. 534L<AnyEvent>.
331 535
332=head1 AUTHOR 536=head1 AUTHOR
333 537
334 Marc Lehmann <schmorp@schmorp.de> 538 Marc Lehmann <schmorp@schmorp.de>
335 http://home.schmorp.de/ 539 http://home.schmorp.de/
336 540
337=cut 541=cut
338 542
3391 5431
340 544

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