| … | |
… | |
| 13 | |
13 | |
| 14 | =head1 DESCRIPTION |
14 | =head1 DESCRIPTION |
| 15 | |
15 | |
| 16 | See L<http://freenet.sourceforge.net/index.php?page=fcp> for a description |
16 | See L<http://freenet.sourceforge.net/index.php?page=fcp> for a description |
| 17 | of what the messages do. I am too lazy to document all this here. |
17 | of what the messages do. I am too lazy to document all this here. |
|
|
18 | |
|
|
19 | The module uses L<AnyEvent> to find a suitable Event module. |
| 18 | |
20 | |
| 19 | =head1 WARNING |
21 | =head1 WARNING |
| 20 | |
22 | |
| 21 | This module is alpha. While it probably won't destroy (much :) of your |
23 | This module is alpha. While it probably won't destroy (much :) of your |
| 22 | data, it currently falls short of what it should provide (intelligent uri |
24 | data, it currently falls short of what it should provide (intelligent uri |
| 23 | following, splitfile downloads, healing...) |
25 | following, splitfile downloads, healing...) |
| 24 | |
26 | |
| 25 | =head2 IMPORT TAGS |
27 | =head2 IMPORT TAGS |
| 26 | |
28 | |
| 27 | Nothing much can be "imported" from this module right now. There are, |
29 | Nothing much can be "imported" from this module right now. |
| 28 | however, certain "import tags" that can be used to select the event model |
|
|
| 29 | to be used. |
|
|
| 30 | |
|
|
| 31 | Event models are implemented as modules under the C<Net::FCP::Event::xyz> |
|
|
| 32 | class, where C<xyz> is the event model to use. The default is C<Event> (or |
|
|
| 33 | later C<Auto>). |
|
|
| 34 | |
|
|
| 35 | The import tag to use is named C<event=xyz>, e.g. C<event=Event>, |
|
|
| 36 | C<event=Glib> etc. |
|
|
| 37 | |
|
|
| 38 | You should specify the event module to use only in the main program. |
|
|
| 39 | |
30 | |
| 40 | =head2 FREENET BASICS |
31 | =head2 FREENET BASICS |
| 41 | |
32 | |
| 42 | Ok, this section will not explain any freenet basics to you, just some |
33 | Ok, this section will not explain any freenet basics to you, just some |
| 43 | problems I found that you might want to avoid: |
34 | problems I found that you might want to avoid: |
| … | |
… | |
| 69 | |
60 | |
| 70 | package Net::FCP; |
61 | package Net::FCP; |
| 71 | |
62 | |
| 72 | use Carp; |
63 | use Carp; |
| 73 | |
64 | |
| 74 | $VERSION = 0.07; |
65 | $VERSION = '1.0'; |
| 75 | |
66 | |
| 76 | no warnings; |
67 | no warnings; |
| 77 | |
68 | |
| 78 | our $EVENT = Net::FCP::Event::Auto::; |
69 | use AnyEvent; |
| 79 | $EVENT = Net::FCP::Event::Event;#d# |
|
|
| 80 | |
70 | |
| 81 | sub import { |
71 | use Net::FCP::Metadata; |
| 82 | shift; |
72 | use Net::FCP::Util qw(tolc touc xeh); |
| 83 | |
73 | |
| 84 | for (@_) { |
|
|
| 85 | if (/^event=(\w+)$/) { |
|
|
| 86 | $EVENT = "Net::FCP::Event::$1"; |
|
|
| 87 | } |
|
|
| 88 | } |
|
|
| 89 | eval "require $EVENT"; |
|
|
| 90 | die $@ if $@; |
|
|
| 91 | } |
|
|
| 92 | |
|
|
| 93 | sub touc($) { |
|
|
| 94 | local $_ = shift; |
|
|
| 95 | 1 while s/((?:^|_)(?:svk|chk|uri)(?:_|$))/\U$1/; |
|
|
| 96 | s/(?:^|_)(.)/\U$1/g; |
|
|
| 97 | $_; |
|
|
| 98 | } |
|
|
| 99 | |
|
|
| 100 | sub tolc($) { |
|
|
| 101 | local $_ = shift; |
|
|
| 102 | s/(?<=[a-z])(?=[A-Z])/_/g; |
|
|
| 103 | lc $_; |
|
|
| 104 | } |
|
|
| 105 | |
|
|
| 106 | =item $meta = Net::FCP::parse_metadata $string |
|
|
| 107 | |
|
|
| 108 | Parse a metadata string and return it. |
|
|
| 109 | |
|
|
| 110 | The metadata will be a hashref with key C<version> (containing |
|
|
| 111 | the mandatory version header entries). |
|
|
| 112 | |
|
|
| 113 | All other headers are represented by arrayrefs (they can be repeated). |
|
|
| 114 | |
|
|
| 115 | Since this is confusing, here is a rather verbose example of a parsed |
|
|
| 116 | manifest: |
|
|
| 117 | |
|
|
| 118 | ( |
|
|
| 119 | version => { revision => 1 }, |
|
|
| 120 | document => [ |
|
|
| 121 | { |
|
|
| 122 | info => { format" => "image/jpeg" }, |
|
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| 123 | name => "background.jpg", |
|
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| 124 | redirect => { target => "freenet:CHK\@ZcagI,ra726bSw" }, |
|
|
| 125 | }, |
|
|
| 126 | { |
|
|
| 127 | info => { format" => "text/html" }, |
|
|
| 128 | name => ".next", |
|
|
| 129 | redirect => { target => "freenet:SSK\@ilUPAgM/TFEE/3" }, |
|
|
| 130 | }, |
|
|
| 131 | { |
|
|
| 132 | info => { format" => "text/html" }, |
|
|
| 133 | redirect => { target => "freenet:CHK\@8M8Po8ucwI,8xA" }, |
|
|
| 134 | } |
|
|
| 135 | ] |
|
|
| 136 | ) |
|
|
| 137 | |
|
|
| 138 | =cut |
|
|
| 139 | |
|
|
| 140 | sub parse_metadata { |
|
|
| 141 | my $meta; |
|
|
| 142 | |
|
|
| 143 | my $data = shift; |
|
|
| 144 | if ($data =~ /^Version\015?\012/gc) { |
|
|
| 145 | my $hdr = $meta->{version} = {}; |
|
|
| 146 | |
|
|
| 147 | for (;;) { |
|
|
| 148 | while ($data =~ /\G([^=\015\012]+)=([^\015\012]*)\015?\012/gc) { |
|
|
| 149 | my ($k, $v) = ($1, $2); |
|
|
| 150 | my @p = split /\./, tolc $k, 3; |
|
|
| 151 | |
|
|
| 152 | $hdr->{$p[0]} = $v if @p == 1; # lamest code I ever wrote |
|
|
| 153 | $hdr->{$p[0]}{$p[1]} = $v if @p == 2; |
|
|
| 154 | $hdr->{$p[0]}{$p[1]}{$p[2]} = $v if @p == 3; |
|
|
| 155 | die "FATAL: 4+ dot metadata" if @p >= 4; |
|
|
| 156 | } |
|
|
| 157 | |
|
|
| 158 | if ($data =~ /\GEndPart\015?\012/gc) { |
|
|
| 159 | # nop |
|
|
| 160 | } elsif ($data =~ /\GEnd(\015?\012|$)/gc) { |
|
|
| 161 | last; |
|
|
| 162 | } elsif ($data =~ /\G([A-Za-z0-9.\-]+)\015?\012/gcs) { |
|
|
| 163 | push @{$meta->{tolc $1}}, $hdr = {}; |
|
|
| 164 | } elsif ($data =~ /\G(.*)/gcs) { |
|
|
| 165 | die "metadata format error ($1), please report this string: <<$data>>"; |
|
|
| 166 | } |
|
|
| 167 | } |
|
|
| 168 | } |
|
|
| 169 | |
|
|
| 170 | #$meta->{tail} = substr $data, pos $data; |
|
|
| 171 | |
|
|
| 172 | $meta; |
|
|
| 173 | } |
|
|
| 174 | |
|
|
| 175 | =item $fcp = new Net::FCP [host => $host][, port => $port] |
74 | =item $fcp = new Net::FCP [host => $host][, port => $port][, progress => \&cb] |
| 176 | |
75 | |
| 177 | Create a new virtual FCP connection to the given host and port (default |
76 | Create a new virtual FCP connection to the given host and port (default |
| 178 | 127.0.0.1:8481, or the environment variables C<FREDHOST> and C<FREDPORT>). |
77 | 127.0.0.1:8481, or the environment variables C<FREDHOST> and C<FREDPORT>). |
| 179 | |
78 | |
| 180 | Connections are virtual because no persistent physical connection is |
79 | Connections are virtual because no persistent physical connection is |
| 181 | established. |
80 | established. |
| 182 | |
81 | |
| 183 | =begin comment |
82 | You can install a progress callback that is being called with the Net::FCP |
|
|
83 | object, a txn object, the type of the transaction and the attributes. Use |
|
|
84 | it like this: |
| 184 | |
85 | |
| 185 | However, the existance of the node is checked by executing a |
86 | sub progress_cb { |
| 186 | C<ClientHello> transaction. |
87 | my ($self, $txn, $type, $attr) = @_; |
| 187 | |
88 | |
| 188 | =end |
89 | warn "progress<$txn,$type," . (join ":", %$attr) . ">\n"; |
|
|
90 | } |
| 189 | |
91 | |
| 190 | =cut |
92 | =cut |
| 191 | |
93 | |
| 192 | sub new { |
94 | sub new { |
| 193 | my $class = shift; |
95 | my $class = shift; |
| 194 | my $self = bless { @_ }, $class; |
96 | my $self = bless { @_ }, $class; |
| 195 | |
97 | |
| 196 | $self->{host} ||= $ENV{FREDHOST} || "127.0.0.1"; |
98 | $self->{host} ||= $ENV{FREDHOST} || "127.0.0.1"; |
| 197 | $self->{port} ||= $ENV{FREDPORT} || 8481; |
99 | $self->{port} ||= $ENV{FREDPORT} || 8481; |
| 198 | |
100 | |
| 199 | #$self->{nodehello} = $self->client_hello |
|
|
| 200 | # or croak "unable to get nodehello from node\n"; |
|
|
| 201 | |
|
|
| 202 | $self; |
101 | $self; |
| 203 | } |
102 | } |
| 204 | |
103 | |
| 205 | sub progress { |
104 | sub progress { |
| 206 | my ($self, $txn, $type, $attr) = @_; |
105 | my ($self, $txn, $type, $attr) = @_; |
| 207 | warn "progress<$txn,$type," . (join ":", %$attr) . ">\n"; |
|
|
| 208 | } |
|
|
| 209 | |
106 | |
|
|
107 | $self->{progress}->($self, $txn, $type, $attr) |
|
|
108 | if $self->{progress}; |
|
|
109 | } |
|
|
110 | |
| 210 | =item $txn = $fcp->txn(type => attr => val,...) |
111 | =item $txn = $fcp->txn (type => attr => val,...) |
| 211 | |
112 | |
| 212 | The low-level interface to transactions. Don't use it. |
113 | The low-level interface to transactions. Don't use it unless you have |
| 213 | |
114 | "special needs". Instead, use predefiend transactions like this: |
| 214 | Here are some examples of using transactions: |
|
|
| 215 | |
115 | |
| 216 | The blocking case, no (visible) transactions involved: |
116 | The blocking case, no (visible) transactions involved: |
| 217 | |
117 | |
| 218 | my $nodehello = $fcp->client_hello; |
118 | my $nodehello = $fcp->client_hello; |
| 219 | |
119 | |
| … | |
… | |
| 238 | sub txn { |
138 | sub txn { |
| 239 | my ($self, $type, %attr) = @_; |
139 | my ($self, $type, %attr) = @_; |
| 240 | |
140 | |
| 241 | $type = touc $type; |
141 | $type = touc $type; |
| 242 | |
142 | |
| 243 | my $txn = "Net::FCP::Txn::$type"->new(fcp => $self, type => tolc $type, attr => \%attr); |
143 | my $txn = "Net::FCP::Txn::$type"->new (fcp => $self, type => tolc $type, attr => \%attr); |
| 244 | |
144 | |
| 245 | $txn; |
145 | $txn; |
| 246 | } |
146 | } |
| 247 | |
147 | |
| 248 | { # transactions |
148 | { # transactions |
| … | |
… | |
| 309 | my ($self) = @_; |
209 | my ($self) = @_; |
| 310 | |
210 | |
| 311 | $self->txn ("client_info"); |
211 | $self->txn ("client_info"); |
| 312 | }); |
212 | }); |
| 313 | |
213 | |
| 314 | =item $txn = $fcp->txn_generate_chk ($metadata, $data) |
214 | =item $txn = $fcp->txn_generate_chk ($metadata, $data[, $cipher]) |
| 315 | |
215 | |
| 316 | =item $uri = $fcp->generate_chk ($metadata, $data) |
216 | =item $uri = $fcp->generate_chk ($metadata, $data[, $cipher]) |
| 317 | |
217 | |
| 318 | Creates a new CHK, given the metadata and data. UNTESTED. |
218 | Calculates a CHK, given the metadata and data. C<$cipher> is either |
|
|
219 | C<Rijndael> or C<Twofish>, with the latter being the default. |
| 319 | |
220 | |
| 320 | =cut |
221 | =cut |
| 321 | |
222 | |
| 322 | $txn->(generate_chk => sub { |
223 | $txn->(generate_chk => sub { |
| 323 | my ($self, $metadata, $data) = @_; |
224 | my ($self, $metadata, $data, $cipher) = @_; |
| 324 | |
225 | |
| 325 | $self->txn (generate_chk => data => "$metadata$data", metadata_length => length $metadata); |
226 | $metadata = Net::FCP::Metadata::build_metadata $metadata; |
|
|
227 | |
|
|
228 | $self->txn (generate_chk => |
|
|
229 | data => "$metadata$data", |
|
|
230 | metadata_length => xeh length $metadata, |
|
|
231 | cipher => $cipher || "Twofish"); |
| 326 | }); |
232 | }); |
| 327 | |
233 | |
| 328 | =item $txn = $fcp->txn_generate_svk_pair |
234 | =item $txn = $fcp->txn_generate_svk_pair |
| 329 | |
235 | |
| 330 | =item ($public, $private) = @{ $fcp->generate_svk_pair } |
236 | =item ($public, $private, $crypto) = @{ $fcp->generate_svk_pair } |
| 331 | |
237 | |
| 332 | Creates a new SVK pair. Returns an arrayref. |
238 | Creates a new SVK pair. Returns an arrayref with the public key, the |
|
|
239 | private key and a crypto key, which is just additional entropy. |
| 333 | |
240 | |
| 334 | [ |
241 | [ |
| 335 | "hKs0-WDQA4pVZyMPKNFsK1zapWY", |
242 | "acLx4dux9fvvABH15Gk6~d3I-yw", |
| 336 | "ZnmvMITaTXBMFGl4~jrjuyWxOWg" |
243 | "cPoDkDMXDGSMM32plaPZDhJDxSs", |
|
|
244 | "BH7LXCov0w51-y9i~BoB3g", |
| 337 | ] |
245 | ] |
|
|
246 | |
|
|
247 | A private key (for inserting) can be constructed like this: |
|
|
248 | |
|
|
249 | SSK@<private_key>,<crypto_key>/<name> |
|
|
250 | |
|
|
251 | It can be used to insert data. The corresponding public key looks like this: |
|
|
252 | |
|
|
253 | SSK@<public_key>PAgM,<crypto_key>/<name> |
|
|
254 | |
|
|
255 | Watch out for the C<PAgM>-part! |
| 338 | |
256 | |
| 339 | =cut |
257 | =cut |
| 340 | |
258 | |
| 341 | $txn->(generate_svk_pair => sub { |
259 | $txn->(generate_svk_pair => sub { |
| 342 | my ($self) = @_; |
260 | my ($self) = @_; |
| 343 | |
261 | |
| 344 | $self->txn ("generate_svk_pair"); |
262 | $self->txn ("generate_svk_pair"); |
| 345 | }); |
263 | }); |
| 346 | |
264 | |
| 347 | =item $txn = $fcp->txn_insert_private_key ($private) |
265 | =item $txn = $fcp->txn_invert_private_key ($private) |
| 348 | |
266 | |
| 349 | =item $public = $fcp->insert_private_key ($private) |
267 | =item $public = $fcp->invert_private_key ($private) |
| 350 | |
268 | |
| 351 | Inserts a private key. $private can be either an insert URI (must start |
269 | Inverts a private key (returns the public key). C<$private> can be either |
| 352 | with C<freenet:SSK@>) or a raw private key (i.e. the private value you get |
270 | an insert URI (must start with C<freenet:SSK@>) or a raw private key (i.e. |
| 353 | back from C<generate_svk_pair>). |
271 | the private value you get back from C<generate_svk_pair>). |
| 354 | |
272 | |
| 355 | Returns the public key. |
273 | Returns the public key. |
| 356 | |
274 | |
| 357 | UNTESTED. |
|
|
| 358 | |
|
|
| 359 | =cut |
275 | =cut |
| 360 | |
276 | |
| 361 | $txn->(insert_private_key => sub { |
277 | $txn->(invert_private_key => sub { |
| 362 | my ($self, $privkey) = @_; |
278 | my ($self, $privkey) = @_; |
| 363 | |
279 | |
| 364 | $self->txn (invert_private_key => private => $privkey); |
280 | $self->txn (invert_private_key => private => $privkey); |
| 365 | }); |
281 | }); |
| 366 | |
282 | |
| … | |
… | |
| 369 | =item $length = $fcp->get_size ($uri) |
285 | =item $length = $fcp->get_size ($uri) |
| 370 | |
286 | |
| 371 | Finds and returns the size (rounded up to the nearest power of two) of the |
287 | Finds and returns the size (rounded up to the nearest power of two) of the |
| 372 | given document. |
288 | given document. |
| 373 | |
289 | |
| 374 | UNTESTED. |
|
|
| 375 | |
|
|
| 376 | =cut |
290 | =cut |
| 377 | |
291 | |
| 378 | $txn->(get_size => sub { |
292 | $txn->(get_size => sub { |
| 379 | my ($self, $uri) = @_; |
293 | my ($self, $uri) = @_; |
| 380 | |
294 | |
| … | |
… | |
| 383 | |
297 | |
| 384 | =item $txn = $fcp->txn_client_get ($uri [, $htl = 15 [, $removelocal = 0]]) |
298 | =item $txn = $fcp->txn_client_get ($uri [, $htl = 15 [, $removelocal = 0]]) |
| 385 | |
299 | |
| 386 | =item ($metadata, $data) = @{ $fcp->client_get ($uri, $htl, $removelocal) |
300 | =item ($metadata, $data) = @{ $fcp->client_get ($uri, $htl, $removelocal) |
| 387 | |
301 | |
| 388 | Fetches a (small, as it should fit into memory) file from |
302 | Fetches a (small, as it should fit into memory) key content block from |
| 389 | freenet. C<$meta> is the metadata (as returned by C<parse_metadata> or |
303 | freenet. C<$meta> is a C<Net::FCP::Metadata> object or C<undef>). |
| 390 | C<undef>). |
|
|
| 391 | |
304 | |
| 392 | Due to the overhead, a better method to download big files should be used. |
305 | The C<$uri> should begin with C<freenet:>, but the scheme is currently |
|
|
306 | added, if missing. |
| 393 | |
307 | |
| 394 | my ($meta, $data) = @{ |
308 | my ($meta, $data) = @{ |
| 395 | $fcp->client_get ( |
309 | $fcp->client_get ( |
| 396 | "freenet:CHK@hdXaxkwZ9rA8-SidT0AN-bniQlgPAwI,XdCDmBuGsd-ulqbLnZ8v~w" |
310 | "freenet:CHK@hdXaxkwZ9rA8-SidT0AN-bniQlgPAwI,XdCDmBuGsd-ulqbLnZ8v~w" |
| 397 | ) |
311 | ) |
| … | |
… | |
| 400 | =cut |
314 | =cut |
| 401 | |
315 | |
| 402 | $txn->(client_get => sub { |
316 | $txn->(client_get => sub { |
| 403 | my ($self, $uri, $htl, $removelocal) = @_; |
317 | my ($self, $uri, $htl, $removelocal) = @_; |
| 404 | |
318 | |
|
|
319 | $uri =~ s/^freenet://; $uri = "freenet:$uri"; |
|
|
320 | |
| 405 | $self->txn (client_get => URI => $uri, hops_to_live => (defined $htl ? $htl :15), |
321 | $self->txn (client_get => URI => $uri, hops_to_live => xeh (defined $htl ? $htl : 15), |
| 406 | remove_local_key => $removelocal ? "true" : "false"); |
322 | remove_local_key => $removelocal ? "true" : "false"); |
| 407 | }); |
323 | }); |
| 408 | |
324 | |
| 409 | =item $txn = $fcp->txn_client_put ($uri, $metadata, $data, $htl, $removelocal) |
325 | =item $txn = $fcp->txn_client_put ($uri, $metadata, $data, $htl, $removelocal) |
| 410 | |
326 | |
| 411 | =item my $uri = $fcp->client_put ($uri, $metadata, $data, $htl, $removelocal); |
327 | =item my $uri = $fcp->client_put ($uri, $metadata, $data, $htl, $removelocal); |
| 412 | |
328 | |
| 413 | Insert a new key. If the client is inserting a CHK, the URI may be |
329 | Insert a new key. If the client is inserting a CHK, the URI may be |
| 414 | abbreviated as just CHK@. In this case, the node will calculate the |
330 | abbreviated as just CHK@. In this case, the node will calculate the |
| 415 | CHK. |
331 | CHK. If the key is a private SSK key, the node will calculcate the public |
|
|
332 | key and the resulting public URI. |
| 416 | |
333 | |
| 417 | C<$meta> can be a reference or a string (ONLY THE STRING CASE IS IMPLEMENTED!). |
334 | C<$meta> can be a hash reference (same format as returned by |
|
|
335 | C<Net::FCP::parse_metadata>) or a string. |
| 418 | |
336 | |
| 419 | THIS INTERFACE IS UNTESTED AND SUBJECT TO CHANGE. |
337 | The result is an arrayref with the keys C<uri>, C<public_key> and C<private_key>. |
| 420 | |
338 | |
| 421 | =cut |
339 | =cut |
| 422 | |
340 | |
| 423 | $txn->(client_put => sub { |
341 | $txn->(client_put => sub { |
| 424 | my ($self, $uri, $meta, $data, $htl, $removelocal) = @_; |
342 | my ($self, $uri, $metadata, $data, $htl, $removelocal) = @_; |
| 425 | |
343 | |
| 426 | $self->txn (client_put => URI => $uri, hops_to_live => (defined $htl ? $htl :15), |
344 | $metadata = Net::FCP::Metadata::build_metadata $metadata; |
|
|
345 | $uri =~ s/^freenet://; $uri = "freenet:$uri"; |
|
|
346 | |
|
|
347 | $self->txn (client_put => URI => $uri, |
|
|
348 | hops_to_live => xeh (defined $htl ? $htl : 15), |
| 427 | remove_local_key => $removelocal ? "true" : "false", |
349 | remove_local_key => $removelocal ? "true" : "false", |
| 428 | data => "$meta$data", metadata_length => length $meta); |
350 | data => "$metadata$data", metadata_length => xeh length $metadata); |
| 429 | }); |
351 | }); |
| 430 | |
352 | |
| 431 | } # transactions |
353 | } # transactions |
| 432 | |
354 | |
| 433 | =item MISSING: (ClientPut), InsretKey |
|
|
| 434 | |
|
|
| 435 | =back |
355 | =back |
| 436 | |
356 | |
| 437 | =head2 THE Net::FCP::Txn CLASS |
357 | =head2 THE Net::FCP::Txn CLASS |
| 438 | |
358 | |
| 439 | All requests (or transactions) are executed in a asynchroneous way (LIE: |
359 | All requests (or transactions) are executed in a asynchronous way. For |
| 440 | uploads are blocking). For each request, a C<Net::FCP::Txn> object is |
360 | each request, a C<Net::FCP::Txn> object is created (worse: a tcp |
| 441 | created (worse: a tcp connection is created, too). |
361 | connection is created, too). |
| 442 | |
362 | |
| 443 | For each request there is actually a different subclass (and it's possible |
363 | For each request there is actually a different subclass (and it's possible |
| 444 | to subclass these, although of course not documented). |
364 | to subclass these, although of course not documented). |
| 445 | |
365 | |
| 446 | The most interesting method is C<result>. |
366 | The most interesting method is C<result>. |
| … | |
… | |
| 462 | |
382 | |
| 463 | sub new { |
383 | sub new { |
| 464 | my $class = shift; |
384 | my $class = shift; |
| 465 | my $self = bless { @_ }, $class; |
385 | my $self = bless { @_ }, $class; |
| 466 | |
386 | |
| 467 | $self->{signal} = $EVENT->new_signal; |
387 | $self->{signal} = AnyEvent->condvar; |
| 468 | |
388 | |
| 469 | $self->{fcp}{txn}{$self} = $self; |
389 | $self->{fcp}{txn}{$self} = $self; |
| 470 | |
390 | |
| 471 | my $attr = ""; |
391 | my $attr = ""; |
| 472 | my $data = delete $self->{attr}{data}; |
392 | my $data = delete $self->{attr}{data}; |
| … | |
… | |
| 474 | while (my ($k, $v) = each %{$self->{attr}}) { |
394 | while (my ($k, $v) = each %{$self->{attr}}) { |
| 475 | $attr .= (Net::FCP::touc $k) . "=$v\012" |
395 | $attr .= (Net::FCP::touc $k) . "=$v\012" |
| 476 | } |
396 | } |
| 477 | |
397 | |
| 478 | if (defined $data) { |
398 | if (defined $data) { |
| 479 | $attr .= "DataLength=" . (length $data) . "\012"; |
399 | $attr .= sprintf "DataLength=%x\012", length $data; |
| 480 | $data = "Data\012$data"; |
400 | $data = "Data\012$data"; |
| 481 | } else { |
401 | } else { |
| 482 | $data = "EndMessage\012"; |
402 | $data = "EndMessage\012"; |
| 483 | } |
403 | } |
| 484 | |
404 | |
| 485 | socket my $fh, PF_INET, SOCK_STREAM, 0 |
405 | socket my $fh, PF_INET, SOCK_STREAM, 0 |
| 486 | or Carp::croak "unable to create new tcp socket: $!"; |
406 | or Carp::croak "unable to create new tcp socket: $!"; |
| 487 | binmode $fh, ":raw"; |
407 | binmode $fh, ":raw"; |
| 488 | fcntl $fh, F_SETFL, O_NONBLOCK; |
408 | fcntl $fh, F_SETFL, O_NONBLOCK; |
| 489 | connect $fh, (sockaddr_in $self->{fcp}{port}, inet_aton $self->{fcp}{host}) |
409 | connect $fh, (sockaddr_in $self->{fcp}{port}, inet_aton $self->{fcp}{host}); |
| 490 | and !$!{EWOULDBLOCK} |
|
|
| 491 | and !$!{EINPROGRESS} |
|
|
| 492 | and Carp::croak "FCP::txn: unable to connect to $self->{fcp}{host}:$self->{fcp}{port}: $!\n"; |
410 | # and Carp::croak "FCP::txn: unable to connect to $self->{fcp}{host}:$self->{fcp}{port}: $!\n"; |
| 493 | |
411 | |
| 494 | $self->{sbuf} = |
412 | $self->{sbuf} = |
| 495 | "\x00\x00\x00\x02" |
413 | "\x00\x00\x00\x02" |
| 496 | . Net::FCP::touc $self->{type} |
414 | . (Net::FCP::touc $self->{type}) |
| 497 | . "\012$attr$data"; |
415 | . "\012$attr$data"; |
| 498 | |
416 | |
| 499 | #$fh->shutdown (1); # freenet buggy?, well, it's java... |
417 | #shutdown $fh, 1; # freenet buggy?, well, it's java... |
| 500 | |
418 | |
| 501 | $self->{fh} = $fh; |
419 | $self->{fh} = $fh; |
| 502 | |
420 | |
| 503 | $self->{w} = $EVENT->new_from_fh ($fh)->cb(sub { $self->fh_ready_w })->poll(0, 1, 1); |
421 | $self->{w} = AnyEvent->io (fh => $fh, poll => 'w', cb => sub { $self->fh_ready_w }); |
| 504 | |
422 | |
| 505 | $self; |
423 | $self; |
| 506 | } |
424 | } |
| 507 | |
425 | |
| 508 | =item $txn = $txn->cb ($coderef) |
426 | =item $txn = $txn->cb ($coderef) |
| … | |
… | |
| 544 | $self; |
462 | $self; |
| 545 | } |
463 | } |
| 546 | |
464 | |
| 547 | =item $txn->cancel (%attr) |
465 | =item $txn->cancel (%attr) |
| 548 | |
466 | |
| 549 | Cancels the operation with a C<cancel> exception anf the given attributes |
467 | Cancels the operation with a C<cancel> exception and the given attributes |
| 550 | (consider at least giving the attribute C<reason>). |
468 | (consider at least giving the attribute C<reason>). |
| 551 | |
469 | |
| 552 | UNTESTED. |
470 | UNTESTED. |
| 553 | |
471 | |
| 554 | =cut |
472 | =cut |
| … | |
… | |
| 567 | |
485 | |
| 568 | if ($len > 0) { |
486 | if ($len > 0) { |
| 569 | substr $self->{sbuf}, 0, $len, ""; |
487 | substr $self->{sbuf}, 0, $len, ""; |
| 570 | unless (length $self->{sbuf}) { |
488 | unless (length $self->{sbuf}) { |
| 571 | fcntl $self->{fh}, F_SETFL, 0; |
489 | fcntl $self->{fh}, F_SETFL, 0; |
| 572 | $self->{w}->cb(sub { $self->fh_ready_r })->poll (1, 0, 1); |
490 | $self->{w} = AnyEvent->io (fh => $self->{fh}, poll => 'r', cb => sub { $self->fh_ready_r }); |
| 573 | } |
491 | } |
| 574 | } elsif (defined $len) { |
492 | } elsif (defined $len) { |
| 575 | $self->throw (Net::FCP::Exception->new (network_error => { reason => "unexpected end of file while writing" })); |
493 | $self->throw (Net::FCP::Exception->new (network_error => { reason => "unexpected end of file while writing" })); |
| 576 | } else { |
494 | } else { |
| 577 | $self->throw (Net::FCP::Exception->new (network_error => { reason => "$!" })); |
495 | $self->throw (Net::FCP::Exception->new (network_error => { reason => "$!" })); |
| … | |
… | |
| 579 | } |
497 | } |
| 580 | |
498 | |
| 581 | sub fh_ready_r { |
499 | sub fh_ready_r { |
| 582 | my ($self) = @_; |
500 | my ($self) = @_; |
| 583 | |
501 | |
| 584 | if (sysread $self->{fh}, $self->{buf}, 65536, length $self->{buf}) { |
502 | if (sysread $self->{fh}, $self->{buf}, 16384 + 1024, length $self->{buf}) { |
| 585 | for (;;) { |
503 | for (;;) { |
| 586 | if ($self->{datalen}) { |
504 | if ($self->{datalen}) { |
| 587 | #warn "expecting new datachunk $self->{datalen}, got ".(length $self->{buf})."\n";#d# |
505 | #warn "expecting new datachunk $self->{datalen}, got ".(length $self->{buf})."\n";#d# |
| 588 | if (length $self->{buf} >= $self->{datalen}) { |
506 | if (length $self->{buf} >= $self->{datalen}) { |
| 589 | $self->rcv_data (substr $self->{buf}, 0, delete $self->{datalen}, ""); |
507 | $self->rcv_data (substr $self->{buf}, 0, delete $self->{datalen}, ""); |
| … | |
… | |
| 642 | my ($self, $result) = @_; |
560 | my ($self, $result) = @_; |
| 643 | |
561 | |
| 644 | unless (exists $self->{result}) { |
562 | unless (exists $self->{result}) { |
| 645 | $self->{result} = $result; |
563 | $self->{result} = $result; |
| 646 | $self->{cb}->($self) if exists $self->{cb}; |
564 | $self->{cb}->($self) if exists $self->{cb}; |
| 647 | $self->{signal}->send; |
565 | $self->{signal}->broadcast; |
| 648 | } |
566 | } |
| 649 | } |
567 | } |
| 650 | |
568 | |
| 651 | sub eof { |
569 | sub eof { |
| 652 | my ($self) = @_; |
570 | my ($self) = @_; |
| … | |
… | |
| 663 | } |
581 | } |
| 664 | } |
582 | } |
| 665 | |
583 | |
| 666 | sub progress { |
584 | sub progress { |
| 667 | my ($self, $type, $attr) = @_; |
585 | my ($self, $type, $attr) = @_; |
|
|
586 | |
| 668 | $self->{fcp}->progress ($self, $type, $attr); |
587 | $self->{fcp}->progress ($self, $type, $attr); |
| 669 | } |
588 | } |
| 670 | |
589 | |
| 671 | =item $result = $txn->result |
590 | =item $result = $txn->result |
| 672 | |
591 | |
| 673 | Waits until a result is available and then returns it. |
592 | Waits until a result is available and then returns it. |
| 674 | |
593 | |
| 675 | This waiting is (depending on your event model) not very efficient, as it |
594 | This waiting is (depending on your event model) not very efficient, as it |
| 676 | is done outside the "mainloop". |
595 | is done outside the "mainloop". The biggest problem, however, is that it's |
|
|
596 | blocking one thread of execution. Try to use the callback mechanism, if |
|
|
597 | possible, and call result from within the callback (or after is has been |
|
|
598 | run), as then no waiting is necessary. |
| 677 | |
599 | |
| 678 | =cut |
600 | =cut |
| 679 | |
601 | |
| 680 | sub result { |
602 | sub result { |
| 681 | my ($self) = @_; |
603 | my ($self) = @_; |
| … | |
… | |
| 712 | use base Net::FCP::Txn; |
634 | use base Net::FCP::Txn; |
| 713 | |
635 | |
| 714 | sub rcv_success { |
636 | sub rcv_success { |
| 715 | my ($self, $attr) = @_; |
637 | my ($self, $attr) = @_; |
| 716 | |
638 | |
| 717 | $self->set_result ($attr); |
639 | $self->set_result ($attr->{uri}); |
| 718 | } |
640 | } |
| 719 | |
641 | |
| 720 | package Net::FCP::Txn::GenerateSVKPair; |
642 | package Net::FCP::Txn::GenerateSVKPair; |
| 721 | |
643 | |
| 722 | use base Net::FCP::Txn; |
644 | use base Net::FCP::Txn; |
| 723 | |
645 | |
| 724 | sub rcv_success { |
646 | sub rcv_success { |
| 725 | my ($self, $attr) = @_; |
647 | my ($self, $attr) = @_; |
| 726 | $self->set_result ([$attr->{PublicKey}, $attr->{PrivateKey}]); |
648 | $self->set_result ([$attr->{public_key}, $attr->{private_key}, $attr->{crypto_key}]); |
| 727 | } |
649 | } |
| 728 | |
650 | |
| 729 | package Net::FCP::Txn::InsertPrivateKey; |
651 | package Net::FCP::Txn::InvertPrivateKey; |
| 730 | |
652 | |
| 731 | use base Net::FCP::Txn; |
653 | use base Net::FCP::Txn; |
| 732 | |
654 | |
| 733 | sub rcv_success { |
655 | sub rcv_success { |
| 734 | my ($self, $attr) = @_; |
656 | my ($self, $attr) = @_; |
| 735 | $self->set_result ($attr->{PublicKey}); |
657 | $self->set_result ($attr->{public_key}); |
| 736 | } |
658 | } |
| 737 | |
659 | |
| 738 | package Net::FCP::Txn::GetSize; |
660 | package Net::FCP::Txn::GetSize; |
| 739 | |
661 | |
| 740 | use base Net::FCP::Txn; |
662 | use base Net::FCP::Txn; |
| 741 | |
663 | |
| 742 | sub rcv_success { |
664 | sub rcv_success { |
| 743 | my ($self, $attr) = @_; |
665 | my ($self, $attr) = @_; |
| 744 | $self->set_result ($attr->{Length}); |
666 | $self->set_result (hex $attr->{length}); |
| 745 | } |
667 | } |
| 746 | |
668 | |
| 747 | package Net::FCP::Txn::GetPut; |
669 | package Net::FCP::Txn::GetPut; |
| 748 | |
670 | |
| 749 | # base class for get and put |
671 | # base class for get and put |
| 750 | |
672 | |
| 751 | use base Net::FCP::Txn; |
673 | use base Net::FCP::Txn; |
| 752 | |
674 | |
| 753 | *rcv_uri_error = \&Net::FCP::Txn::rcv_throw_exception; |
675 | *rcv_uri_error = \&Net::FCP::Txn::rcv_throw_exception; |
| 754 | *rcv_route_not_found = \&Net::FCP::Txn::rcv_throw_exception; |
676 | *rcv_route_not_found = \&Net::FCP::Txn::rcv_throw_exception; |
| 755 | |
677 | |
| 756 | sub rcv_restarted { |
678 | sub rcv_restarted { |
| 757 | my ($self, $attr, $type) = @_; |
679 | my ($self, $attr, $type) = @_; |
| 758 | |
680 | |
| 759 | delete $self->{datalength}; |
681 | delete $self->{datalength}; |
| … | |
… | |
| 772 | sub rcv_data { |
694 | sub rcv_data { |
| 773 | my ($self, $chunk) = @_; |
695 | my ($self, $chunk) = @_; |
| 774 | |
696 | |
| 775 | $self->{data} .= $chunk; |
697 | $self->{data} .= $chunk; |
| 776 | |
698 | |
| 777 | $self->progress ("data", { chunk => length $chunk, total => length $self->{data}, end => $self->{datalength} }); |
699 | $self->progress ("data", { chunk => length $chunk, received => length $self->{data}, total => $self->{datalength} }); |
| 778 | |
700 | |
| 779 | if ($self->{datalength} == length $self->{data}) { |
701 | if ($self->{datalength} == length $self->{data}) { |
| 780 | my $data = delete $self->{data}; |
702 | my $data = delete $self->{data}; |
| 781 | my $meta = Net::FCP::parse_metadata substr $data, 0, $self->{metalength}, ""; |
703 | my $meta = new Net::FCP::Metadata (substr $data, 0, $self->{metalength}, ""); |
| 782 | |
704 | |
| 783 | $self->set_result ([$meta, $data]); |
705 | $self->set_result ([$meta, $data]); |
|
|
706 | $self->eof; |
| 784 | } |
707 | } |
| 785 | } |
708 | } |
| 786 | |
709 | |
| 787 | sub rcv_data_found { |
710 | sub rcv_data_found { |
| 788 | my ($self, $attr, $type) = @_; |
711 | my ($self, $attr, $type) = @_; |
| … | |
… | |
| 796 | package Net::FCP::Txn::ClientPut; |
719 | package Net::FCP::Txn::ClientPut; |
| 797 | |
720 | |
| 798 | use base Net::FCP::Txn::GetPut; |
721 | use base Net::FCP::Txn::GetPut; |
| 799 | |
722 | |
| 800 | *rcv_size_error = \&Net::FCP::Txn::rcv_throw_exception; |
723 | *rcv_size_error = \&Net::FCP::Txn::rcv_throw_exception; |
| 801 | *rcv_key_collision = \&Net::FCP::Txn::rcv_throw_exception; |
|
|
| 802 | |
724 | |
| 803 | sub rcv_pending { |
725 | sub rcv_pending { |
| 804 | my ($self, $attr, $type) = @_; |
726 | my ($self, $attr, $type) = @_; |
| 805 | $self->progress ($type, $attr); |
727 | $self->progress ($type, $attr); |
| 806 | } |
728 | } |
| … | |
… | |
| 808 | sub rcv_success { |
730 | sub rcv_success { |
| 809 | my ($self, $attr, $type) = @_; |
731 | my ($self, $attr, $type) = @_; |
| 810 | $self->set_result ($attr); |
732 | $self->set_result ($attr); |
| 811 | } |
733 | } |
| 812 | |
734 | |
|
|
735 | sub rcv_key_collision { |
|
|
736 | my ($self, $attr, $type) = @_; |
|
|
737 | $self->set_result ({ key_collision => 1, %$attr }); |
|
|
738 | } |
|
|
739 | |
| 813 | =back |
740 | =back |
| 814 | |
741 | |
| 815 | =head2 The Net::FCP::Exception CLASS |
742 | =head2 The Net::FCP::Exception CLASS |
| 816 | |
743 | |
| 817 | Any unexpected (non-standard) responses that make it impossible to return |
744 | Any unexpected (non-standard) responses that make it impossible to return |
| … | |
… | |
| 826 | |
753 | |
| 827 | package Net::FCP::Exception; |
754 | package Net::FCP::Exception; |
| 828 | |
755 | |
| 829 | use overload |
756 | use overload |
| 830 | '""' => sub { |
757 | '""' => sub { |
| 831 | "Net::FCP::Exception<<$_[0][0]," . (join ":", %{$_[0][1]}) . ">>\n"; |
758 | "Net::FCP::Exception<<$_[0][0]," . (join ":", %{$_[0][1]}) . ">>"; |
| 832 | }; |
759 | }; |
| 833 | |
760 | |
| 834 | =item $exc = new Net::FCP::Exception $type, \%attr |
761 | =item $exc = new Net::FCP::Exception $type, \%attr |
| 835 | |
762 | |
| 836 | Create a new exception object of the given type (a string like |
763 | Create a new exception object of the given type (a string like |
| … | |
… | |
| 883 | |
810 | |
| 884 | =head1 BUGS |
811 | =head1 BUGS |
| 885 | |
812 | |
| 886 | =head1 AUTHOR |
813 | =head1 AUTHOR |
| 887 | |
814 | |
| 888 | Marc Lehmann <pcg@goof.com> |
815 | Marc Lehmann <schmorp@schmorp.de> |
| 889 | http://www.goof.com/pcg/marc/ |
816 | http://home.schmorp.de/ |
| 890 | |
817 | |
| 891 | =cut |
818 | =cut |
| 892 | |
819 | |
| 893 | 1; |
820 | 1 |
| 894 | |
821 | |
