… | |
… | |
2 | |
2 | |
3 | AnyEvent::FCP - freenet client protocol 2.0 |
3 | AnyEvent::FCP - freenet client protocol 2.0 |
4 | |
4 | |
5 | =head1 SYNOPSIS |
5 | =head1 SYNOPSIS |
6 | |
6 | |
7 | use AnyEvent::FCP; |
7 | use AnyEvent::FCP; |
8 | |
8 | |
9 | my $fcp = new AnyEvent::FCP; |
9 | my $fcp = new AnyEvent::FCP; |
10 | |
10 | |
11 | my $ni = $fcp->txn_node_info->result; |
11 | # transactions return condvars |
12 | my $ni = $fcp->node_info; |
12 | my $lp_cv = $fcp->list_peers; |
|
|
13 | my $pr_cv = $fcp->list_persistent_requests; |
|
|
14 | |
|
|
15 | my $peers = $lp_cv->recv; |
|
|
16 | my $reqs = $pr_cv->recv; |
13 | |
17 | |
14 | =head1 DESCRIPTION |
18 | =head1 DESCRIPTION |
15 | |
19 | |
16 | This module implements the freenet client protocol version 2.0, as used by |
20 | This module implements the freenet client protocol version 2.0, as used by |
17 | freenet 0.7. See L<Net::FCP> for the earlier freenet 0.5 version. |
21 | freenet 0.7. See L<Net::FCP> for the earlier freenet 0.5 version. |
18 | |
22 | |
19 | See L<http://wiki.freenetproject.org/FreenetFCPSpec2Point0> for a description |
23 | See L<http://wiki.freenetproject.org/FreenetFCPSpec2Point0> for a |
20 | of what the messages do. |
24 | description of what the messages do. |
21 | |
25 | |
22 | The module uses L<AnyEvent> to find a suitable event module. |
26 | The module uses L<AnyEvent> to find a suitable event module. |
23 | |
27 | |
|
|
28 | Only very little is implemented, ask if you need more, and look at the |
|
|
29 | example program later in this section. |
|
|
30 | |
24 | =head2 IMPORT TAGS |
31 | =head2 IMPORT TAGS |
25 | |
32 | |
26 | Nothing much can be "imported" from this module right now. |
33 | Nothing much can be "imported" from this module right now. |
27 | |
34 | |
28 | =head2 FREENET BASICS |
35 | =head2 THE AnyEvent::FCP CLASS |
29 | |
|
|
30 | Ok, this section will not explain any freenet basics to you, just some |
|
|
31 | problems I found that you might want to avoid: |
|
|
32 | |
36 | |
33 | =over 4 |
37 | =over 4 |
34 | |
38 | |
35 | =item freenet URIs are _NOT_ URIs |
|
|
36 | |
|
|
37 | Whenever a "uri" is required by the protocol, freenet expects a kind of |
|
|
38 | URI prefixed with the "freenet:" scheme, e.g. "freenet:CHK...". However, |
|
|
39 | these are not URIs, as freeent fails to parse them correctly, that is, you |
|
|
40 | must unescape an escaped characters ("%2c" => ",") yourself. Maybe in the |
|
|
41 | future this library will do it for you, so watch out for this incompatible |
|
|
42 | change. |
|
|
43 | |
|
|
44 | =back |
|
|
45 | |
|
|
46 | =head2 THE AnyEvent::FCP CLASS |
|
|
47 | |
|
|
48 | =over 4 |
|
|
49 | |
|
|
50 | =cut |
39 | =cut |
51 | |
40 | |
52 | package AnyEvent::FCP; |
41 | package AnyEvent::FCP; |
53 | |
42 | |
54 | use common::sense; |
43 | use common::sense; |
55 | |
44 | |
56 | use Carp; |
45 | use Carp; |
57 | |
46 | |
58 | our $VERSION = '0.1'; |
47 | our $VERSION = '0.2'; |
59 | |
48 | |
60 | use Scalar::Util (); |
49 | use Scalar::Util (); |
61 | |
50 | |
62 | use AnyEvent; |
51 | use AnyEvent; |
63 | use AnyEvent::Handle; |
52 | use AnyEvent::Handle; |
… | |
… | |
80 | =item $fcp = new AnyEvent::FCP [host => $host][, port => $port][, progress => \&cb][, name => $name] |
69 | =item $fcp = new AnyEvent::FCP [host => $host][, port => $port][, progress => \&cb][, name => $name] |
81 | |
70 | |
82 | Create a new FCP connection to the given host and port (default |
71 | Create a new FCP connection to the given host and port (default |
83 | 127.0.0.1:9481, or the environment variables C<FREDHOST> and C<FREDPORT>). |
72 | 127.0.0.1:9481, or the environment variables C<FREDHOST> and C<FREDPORT>). |
84 | |
73 | |
85 | If no C<name> was specified, then AnyEvent::FCP will generate a (hopefully) |
74 | If no C<name> was specified, then AnyEvent::FCP will generate a |
86 | unique client name for you. |
75 | (hopefully) unique client name for you. |
|
|
76 | |
|
|
77 | =cut |
87 | |
78 | |
88 | #TODO |
79 | #TODO |
89 | #You can install a progress callback that is being called with the AnyEvent::FCP |
80 | #You can install a progress callback that is being called with the AnyEvent::FCP |
90 | #object, a txn object, the type of the transaction and the attributes. Use |
81 | #object, a txn object, the type of the transaction and the attributes. Use |
91 | #it like this: |
82 | #it like this: |
… | |
… | |
94 | # my ($self, $txn, $type, $attr) = @_; |
85 | # my ($self, $txn, $type, $attr) = @_; |
95 | # |
86 | # |
96 | # warn "progress<$txn,$type," . (join ":", %$attr) . ">\n"; |
87 | # warn "progress<$txn,$type," . (join ":", %$attr) . ">\n"; |
97 | # } |
88 | # } |
98 | |
89 | |
99 | =cut |
|
|
100 | |
|
|
101 | sub new { |
90 | sub new { |
102 | my $class = shift; |
91 | my $class = shift; |
103 | my $self = bless { @_ }, $class; |
92 | my $self = bless { @_ }, $class; |
104 | |
93 | |
105 | $self->{host} ||= $ENV{FREDHOST} || "127.0.0.1"; |
94 | $self->{host} ||= $ENV{FREDHOST} || "127.0.0.1"; |
… | |
… | |
132 | ); |
121 | ); |
133 | |
122 | |
134 | $self |
123 | $self |
135 | } |
124 | } |
136 | |
125 | |
137 | sub progress { |
126 | #sub progress { |
138 | my ($self, $txn, $type, $attr) = @_; |
127 | # my ($self, $txn, $type, $attr) = @_; |
139 | |
128 | # |
140 | $self->{progress}->($self, $txn, $type, $attr) |
129 | # $self->{progress}->($self, $txn, $type, $attr) |
141 | if $self->{progress}; |
130 | # if $self->{progress}; |
142 | } |
131 | #} |
143 | |
132 | |
144 | sub send_msg { |
133 | sub send_msg { |
145 | my ($self, $type, %kv) = @_; |
134 | my ($self, $type, %kv) = @_; |
146 | |
135 | |
147 | my $data = delete $kv{data}; |
136 | my $data = delete $kv{data}; |
… | |
… | |
253 | &$sub; |
242 | &$sub; |
254 | $cv->recv |
243 | $cv->recv |
255 | }; |
244 | }; |
256 | } |
245 | } |
257 | |
246 | |
|
|
247 | =item $cv = $fcp->list_peers ([$with_metdata[, $with_volatile]]) |
|
|
248 | |
|
|
249 | =item $peers = $fcp->list_peers_sync ([$with_metdata[, $with_volatile]]) |
|
|
250 | |
|
|
251 | =cut |
|
|
252 | |
258 | _txn list_peers => sub { |
253 | _txn list_peers => sub { |
259 | my ($self, $cv, $with_metadata, $with_volatile) = @_; |
254 | my ($self, $cv, $with_metadata, $with_volatile) = @_; |
260 | |
255 | |
261 | my @res; |
256 | my @res; |
262 | |
257 | |
… | |
… | |
275 | } |
270 | } |
276 | }, |
271 | }, |
277 | ); |
272 | ); |
278 | }; |
273 | }; |
279 | |
274 | |
|
|
275 | =item $cv = $fcp->list_peer_notes ($node_identifier) |
|
|
276 | |
|
|
277 | =item $notes = $fcp->list_peer_notes_sync ($node_identifier) |
|
|
278 | |
|
|
279 | =cut |
|
|
280 | |
280 | _txn list_peer_notes => sub { |
281 | _txn list_peer_notes => sub { |
281 | my ($self, $cv, $node_identifier) = @_; |
282 | my ($self, $cv, $node_identifier) = @_; |
282 | |
283 | |
283 | $self->send_msg (list_peer_notes => |
284 | $self->send_msg (list_peer_notes => |
284 | node_identifier => $node_identifier, |
285 | node_identifier => $node_identifier, |
… | |
… | |
289 | 1 |
290 | 1 |
290 | }, |
291 | }, |
291 | ); |
292 | ); |
292 | }; |
293 | }; |
293 | |
294 | |
|
|
295 | =item $cv = $fcp->watch_global ($enabled[, $verbosity_mask]) |
|
|
296 | |
|
|
297 | =item $fcp->watch_global_sync ($enabled[, $verbosity_mask]) |
|
|
298 | |
|
|
299 | =cut |
|
|
300 | |
294 | _txn watch_global => sub { |
301 | _txn watch_global => sub { |
295 | my ($self, $cv, $enabled, $verbosity_mask) = @_; |
302 | my ($self, $cv, $enabled, $verbosity_mask) = @_; |
296 | |
303 | |
297 | $self->send_msg (watch_global => |
304 | $self->send_msg (watch_global => |
298 | enabled => $enabled ? "true" : "false", |
305 | enabled => $enabled ? "true" : "false", |
299 | defined $verbosity_mask ? (verbosity_mask => $verbosity_mask+0) : (), |
306 | defined $verbosity_mask ? (verbosity_mask => $verbosity_mask+0) : (), |
300 | ); |
307 | ); |
301 | |
308 | |
302 | $cv->(); |
309 | $cv->(); |
303 | }; |
310 | }; |
|
|
311 | |
|
|
312 | =item $cv = $fcp->list_persistent_requests |
|
|
313 | |
|
|
314 | =item $reqs = $fcp->list_persistent_requests_sync |
|
|
315 | |
|
|
316 | =cut |
304 | |
317 | |
305 | _txn list_persistent_requests => sub { |
318 | _txn list_persistent_requests => sub { |
306 | my ($self, $cv) = @_; |
319 | my ($self, $cv) = @_; |
307 | |
320 | |
308 | my %res; |
321 | my %res; |
… | |
… | |
333 | 0 |
346 | 0 |
334 | } |
347 | } |
335 | }; |
348 | }; |
336 | }; |
349 | }; |
337 | |
350 | |
|
|
351 | =item $cv = $fcp->remove_request ($global, $identifier) |
|
|
352 | |
|
|
353 | =item $status = $fcp->remove_request_sync ($global, $identifier) |
|
|
354 | |
|
|
355 | =cut |
|
|
356 | |
338 | _txn remove_request => sub { |
357 | _txn remove_request => sub { |
339 | my ($self, $cv, $global, $identifier) = @_; |
358 | my ($self, $cv, $global, $identifier) = @_; |
340 | |
359 | |
341 | $self->send_msg (remove_request => |
360 | $self->send_msg (remove_request => |
342 | global => $global ? "true" : "false", |
361 | global => $global ? "true" : "false", |
… | |
… | |
349 | }, |
368 | }, |
350 | ); |
369 | ); |
351 | |
370 | |
352 | $cv->(); |
371 | $cv->(); |
353 | }; |
372 | }; |
|
|
373 | |
|
|
374 | =item $cv = $fcp->modify_persistent_request ($global, $identifier[, $client_token[, $priority_class]]) |
|
|
375 | |
|
|
376 | =item $status = $fcp->modify_persistent_request_sync ($global, $identifier[, $client_token[, $priority_class]]) |
|
|
377 | |
|
|
378 | =cut |
354 | |
379 | |
355 | _txn modify_persistent_request => sub { |
380 | _txn modify_persistent_request => sub { |
356 | my ($self, $cv, $global, $identifier, $client_token, $priority_class) = @_; |
381 | my ($self, $cv, $global, $identifier, $client_token, $priority_class) = @_; |
357 | |
382 | |
358 | $self->send_msg (modify_persistent_request => |
383 | $self->send_msg (modify_persistent_request => |
… | |
… | |
369 | ); |
394 | ); |
370 | |
395 | |
371 | $cv->(); |
396 | $cv->(); |
372 | }; |
397 | }; |
373 | |
398 | |
|
|
399 | =item $cv = $fcp->get_plugin_info ($name, $detailed) |
|
|
400 | |
|
|
401 | =item $info = $fcp->get_plugin_info_sync ($name, $detailed) |
|
|
402 | |
|
|
403 | =cut |
|
|
404 | |
374 | _txn get_plugin_info => sub { |
405 | _txn get_plugin_info => sub { |
375 | my ($self, $cv, $name, $detailed) = @_; |
406 | my ($self, $cv, $name, $detailed) = @_; |
376 | |
407 | |
377 | $self->send_msg (get_plugin_info => |
408 | $self->send_msg (get_plugin_info => |
378 | plugin_name => $name, |
409 | plugin_name => $name, |
… | |
… | |
388 | $cv->(); |
419 | $cv->(); |
389 | }; |
420 | }; |
390 | |
421 | |
391 | =back |
422 | =back |
392 | |
423 | |
|
|
424 | =head1 EXAMPLE PROGRAM |
|
|
425 | |
|
|
426 | use AnyEvent::FCP; |
|
|
427 | |
|
|
428 | my $fcp = new AnyEvent::FCP; |
|
|
429 | |
|
|
430 | # let us look at the global request list |
|
|
431 | $fcp->watch_global (1, 0); |
|
|
432 | |
|
|
433 | # list them, synchronously |
|
|
434 | my $req = $fcp->list_persistent_requests_sync; |
|
|
435 | |
|
|
436 | # go through all requests |
|
|
437 | for my $req (values %$req) { |
|
|
438 | # skip jobs not directly-to-disk |
|
|
439 | next unless $req->{return_type} eq "disk"; |
|
|
440 | # skip jobs not issued by FProxy |
|
|
441 | next unless $req->{identifier} =~ /^FProxy:/; |
|
|
442 | |
|
|
443 | if ($req->{data_found}) { |
|
|
444 | # file has been successfully downloaded |
|
|
445 | |
|
|
446 | ... move the file away |
|
|
447 | (left as exercise) |
|
|
448 | |
|
|
449 | # remove the request |
|
|
450 | |
|
|
451 | $fcp->remove_request (1, $req->{identifier}); |
|
|
452 | } elsif ($req->{get_failed}) { |
|
|
453 | # request has failed |
|
|
454 | if ($req->{get_failed}{code} == 11) { |
|
|
455 | # too many path components, should restart |
|
|
456 | } else { |
|
|
457 | # other failure |
|
|
458 | } |
|
|
459 | } else { |
|
|
460 | # modify priorities randomly, to improve download rates |
|
|
461 | $fcp->modify_persistent_request (1, $req->{identifier}, undef, int 6 - 5 * (rand) ** 1.7) |
|
|
462 | if 0.1 > rand; |
|
|
463 | } |
|
|
464 | } |
|
|
465 | |
|
|
466 | # see if the dummy plugin is loaded, to ensure all previous requests have finished. |
|
|
467 | $fcp->get_plugin_info_sync ("dummy"); |
|
|
468 | |
393 | =head1 SEE ALSO |
469 | =head1 SEE ALSO |
394 | |
470 | |
395 | L<http://wiki.freenetproject.org/FreenetFCPSpec2Point0>, L<Net::FCP>. |
471 | L<http://wiki.freenetproject.org/FreenetFCPSpec2Point0>, L<Net::FCP>. |
396 | |
472 | |
397 | =head1 BUGS |
473 | =head1 BUGS |