bb3b9f8e |
1 | <?php |
2 | /******************************************************************************** |
3 | * include/NetNNTP.inc.php : NNTP subroutines |
4 | * ------------------------- |
5 | * |
6 | * This file is part of the banana distribution |
7 | * Copyright: See COPYING files that comes with this distribution |
8 | ********************************************************************************/ |
9 | |
10 | /** Class NNTP |
11 | * implements some basic functions for NNTP protocol |
12 | */ |
d4c19591 |
13 | class nntp |
14 | { |
e785d91c |
15 | /** socket filehandle */ |
16 | var $ns; |
e785d91c |
17 | /** posting allowed */ |
18 | var $posting; |
19 | /** last NNTP error code */ |
20 | var $lasterrorcode; |
21 | /** last NNTP error text */ |
22 | var $lasterrortext; |
bb3b9f8e |
23 | |
e785d91c |
24 | /** constructor |
25 | * @param $_host STRING NNTP host |
26 | * @param $_timeout INTEGER socket timeout |
e785d91c |
27 | * @param $_reader BOOLEAN sends a "MODE READER" at connection if true |
28 | */ |
29 | |
2dbc0167 |
30 | function nntp($_url, $_timeout=120, $_reader=true) |
d4c19591 |
31 | { |
2dbc0167 |
32 | $url['port'] = 119; |
33 | $url = parse_url($_url); |
34 | $this->ns = fsockopen($url['host'], $url['port'], $errno, $errstr, $_timeout); |
e785d91c |
35 | if (!$this->ns) { |
e785d91c |
36 | $this = false; |
37 | return false; |
38 | } |
2dbc0167 |
39 | |
e785d91c |
40 | $result = $this->gline(); |
41 | $this->posting = (substr($result, 0, 3)=="200"); |
42 | if ($_reader && ($result{0}=="2")) { |
43 | $this->pline("MODE READER\r\n"); |
44 | $result = $this->gline(); |
45 | $this->posting = ($result{0}=="200"); |
46 | } |
2dbc0167 |
47 | if ($result{0}=="2" && $url['user'] && $url['user']!='anonymous') { |
48 | return $this->authinfo($url['user'], $url['pass']); |
49 | } |
e785d91c |
50 | return ($result{0}=="2"); |
bb3b9f8e |
51 | } |
bb3b9f8e |
52 | |
2dbc0167 |
53 | # Socket functions |
54 | |
55 | /** get a line from server |
56 | * @return STRING |
57 | */ |
58 | |
59 | function gline() |
60 | { |
65d96b1f |
61 | return rtrim(fgets($this->ns, 1200)); |
2dbc0167 |
62 | } |
63 | |
64 | /** puts a line on server |
65 | * @param STRING $_line line to put |
66 | */ |
67 | |
68 | function pline($_line) |
69 | { |
70 | return fputs($this->ns, $_line, strlen($_line)); |
71 | } |
72 | |
bb3b9f8e |
73 | # strict NNTP Functions [RFC 977] |
74 | # see http://www.faqs.org/rfcs/rfc977.html |
75 | |
e785d91c |
76 | /** authentification |
77 | * @param $_user STRING login |
78 | * @param $_pass INTEGER password |
79 | * @return BOOLEAN true if authentication was successful |
80 | */ |
81 | |
d4c19591 |
82 | function authinfo($_user, $_pass) |
83 | { |
e785d91c |
84 | $user = preg_replace("/(\r|\n)/", "", $_user); |
85 | $pass = preg_replace("/(\r|\n)/", "", $_pass); |
86 | $this->pline("AUTHINFO USER $user\r\n"); |
87 | $this->gline(); |
88 | $this->pline("AUTHINFO PASS $pass\r\n"); |
89 | $result=$this->gline(); |
90 | if ($result{0}!="2") { |
91 | $this->lasterrorcode = substr($result, 0, 3); |
92 | $this->lasterrortext = substr($result, 4); |
93 | return false; |
94 | } |
bb3b9f8e |
95 | return true; |
bb3b9f8e |
96 | } |
e785d91c |
97 | |
98 | /** retrieves an article |
99 | * MSGID is a numeric ID a shown in article's headers. MSGNUM is a |
100 | * server-dependent ID (see X-Ref on many servers) and retriving |
101 | * an article by this way will change the current article pointer. |
102 | * If an error occur, false is returned. |
103 | * @param $_msgid STRING MSGID or MSGNUM of article |
104 | * @return ARRAY lines of the article |
105 | * @see body |
106 | * @see head |
107 | */ |
108 | |
d4c19591 |
109 | function article($_msgid="") |
110 | { |
e785d91c |
111 | $msgid = preg_replace("/(\r|\n)/", "", $_msgid); |
112 | $this->pline("ARTICLE $msgid\r\n"); |
113 | $result = $this->gline(); |
114 | if ($result{0} != '2') { |
115 | $this->lasterrorcode = substr($result, 0, 3); |
116 | $this->lasterrortext = substr($result, 4); |
117 | return false; |
118 | } |
119 | $result = $this->gline(); |
120 | while ($result != ".") { |
121 | $array[] = $result; |
122 | $result = $this->gline(); |
123 | } |
124 | return $array; |
bb3b9f8e |
125 | } |
e785d91c |
126 | |
127 | /** post a message |
128 | * if an error occur, false is returned |
129 | * @param $_message STRING message to post |
130 | * @return STRING MSGID of article |
131 | */ |
132 | |
d4c19591 |
133 | function post($_message) |
134 | { |
e785d91c |
135 | if (is_array($_message)) { |
136 | $message=join("\n", $_message); |
137 | } else { |
138 | $message=$_message; |
139 | } |
140 | $this->pline("POST \r\n"); |
141 | $result=$this->gline(); |
142 | if ($result{0} != '3') { |
143 | $this->lasterrorcode = substr($result, 0, 3); |
144 | $this->lasterrortext = substr($result, 4); |
145 | return false; |
146 | } |
147 | $this->pline($message."\r\n.\r\n"); |
148 | $result = $this->gline(); |
149 | if ($result{0} != '2') { |
150 | $this->lasterrorcode = substr($result, 0, 3); |
151 | $this->lasterrortext = substr($result, 4); |
152 | return false; |
153 | } |
154 | if ($result{0} == '2') { |
155 | if (preg_match("/(<[^@>]+@[^@>]+>)/", $result, $regs)) { |
156 | return $regs[0]; |
157 | } else { |
158 | return true; |
159 | } |
160 | } |
161 | return false; |
bb3b9f8e |
162 | } |
e785d91c |
163 | |
164 | /** fetches the body of an article |
165 | * params are the same as article |
166 | * @param $_msgid STRING MSGID or MSGNUM of article |
167 | * @return ARRAY lines of the article |
168 | * @see article |
169 | * @see head |
170 | */ |
171 | |
d4c19591 |
172 | function body($_msgid="") |
173 | { |
e785d91c |
174 | $msgid = preg_replace("/(\r|\n)/", "", $_msgid); |
175 | $this->pline("BODY $msgid\r\n"); |
176 | $result = $this->gline(); |
177 | if ($result{0} != '2') { |
178 | $this->lasterrorcode = substr($result, 0, 3); |
179 | $this->lasterrortext = substr($result, 4); |
180 | return false; |
181 | } |
182 | $result = $this->gline(); |
183 | while ($result != ".") { |
184 | $array[] = $result; |
185 | $result = $this->gline(); |
186 | } |
187 | return $array; |
bb3b9f8e |
188 | } |
e785d91c |
189 | |
190 | /** fetches the headers of an article |
191 | * params are the same as article |
192 | * @param $_msgid STRING MSGID or MSGNUM of article |
193 | * @return ARRAY lines of the article |
194 | * @see article |
195 | * @see body |
196 | */ |
197 | |
d4c19591 |
198 | function head($_msgid="") |
199 | { |
e785d91c |
200 | $msgid = preg_replace("/(\r|\n)/", "", $_msgid); |
201 | $this->pline("HEAD $msgid\r\n"); |
202 | $result = $this->gline(); |
203 | if ($result{0}!="2") { |
204 | $this->lasterrorcode = substr($result, 0, 3); |
205 | $this->lasterrortext = substr($result, 4); |
206 | return false; |
207 | } |
208 | $result = $this->gline(); |
209 | while ($result != ".") { |
210 | $array[] = $result; |
211 | $result = $this->gline(); |
212 | } |
213 | return $array; |
bb3b9f8e |
214 | } |
e785d91c |
215 | |
216 | /** set current group |
217 | * @param $_group STRING |
218 | * @return ARRAY array : nb of articles in group, MSGNUM of first article, MSGNUM of last article, and group name |
219 | */ |
220 | |
d4c19591 |
221 | function group($_group) |
222 | { |
e785d91c |
223 | $group = preg_replace("/(\r|\n)/", "", $_group); |
224 | $this->pline("GROUP $group\r\n"); |
225 | $line = $this->gline(); |
226 | if ($line{0}!="2") { |
227 | $this->lasterrorcode = substr($line, 0, 3); |
228 | $this->lasterrortext = substr($line, 4); |
229 | return false; |
230 | } |
231 | if (preg_match("/^2\d{2} (\d+) (\d+) (\d+) ([^ ]+)/", $line, $regs)) { |
232 | return array($regs[1], $regs[2], $regs[3], $regs[4]); |
233 | } |
11873d85 |
234 | return false; |
bb3b9f8e |
235 | } |
e785d91c |
236 | |
237 | /** set the article pointer to the previous article in current group |
238 | * @return STRING MSGID of article |
239 | * @see next |
240 | */ |
241 | |
d4c19591 |
242 | function last() |
243 | { |
e785d91c |
244 | $this->pline("LAST \r\n"); |
245 | $line = $this->gline(); |
246 | if ($line{0}!="2") { |
247 | $this->lasterrorcode = substr($result, 0, 3); |
248 | $this->lasterrortext = substr($result, 4); |
249 | return false; |
250 | } |
251 | if (preg_match("/^2\d{2} \d+ <([^>]+)>/", $line, $regs)) { |
252 | return "<{$regs[1]}>"; |
253 | } |
11873d85 |
254 | return false; |
bb3b9f8e |
255 | } |
e785d91c |
256 | |
257 | /** set the article pointer to the next article in current group |
258 | * @return STRING MSGID of article |
259 | * @see last |
260 | */ |
261 | |
d4c19591 |
262 | function next() |
263 | { |
e785d91c |
264 | $this->pline("NEXT \r\n"); |
265 | $line = $this->gline(); |
266 | if ($line{0}!="2") { |
267 | $this->lasterrorcode = substr($result, 0, 3); |
268 | $this->lasterrortext = substr($result, 4); |
269 | return false; |
270 | } |
271 | if (preg_match("/^2\d{2} \d+ <([^>]+)>/", $line, $regs)) { |
272 | return "<{$regs[1]}>"; |
273 | } |
11873d85 |
274 | return false; |
bb3b9f8e |
275 | } |
e785d91c |
276 | |
277 | /** set the current article pointer |
278 | * @param $_msgid STRING MSGID or MSGNUM of article |
279 | * @return BOOLEAN true if authentication was successful, error code otherwise |
280 | * @see article |
281 | * @see body |
282 | */ |
283 | |
d4c19591 |
284 | function nntpstat($_msgid) |
285 | { |
e785d91c |
286 | $msgid = preg_replace("/(\r|\n)/", "", $_msgid); |
287 | $this->pline("STAT $msgid\r\n"); |
288 | $line = $this->gline(); |
289 | if ($line{0}!="2") { |
290 | $this->lasterrorcode = substr($result, 0, 3); |
291 | $this->lasterrortext = substr($result, 4); |
292 | return false; |
293 | } |
294 | if (preg_match("/^2\d{2} \d+ <([^>]+)>/", $line, $regs)) { |
295 | return "<{$regs[1]}>"; |
296 | } |
297 | return false; |
bb3b9f8e |
298 | } |
e785d91c |
299 | |
300 | /** returns true if posting is allowed |
301 | * @return BOOLEAN true if posting is allowed lines |
302 | */ |
303 | |
d4c19591 |
304 | function postok() |
305 | { |
e785d91c |
306 | return ($this->posting); |
bb3b9f8e |
307 | } |
e785d91c |
308 | |
309 | /** gets information about all active newsgroups |
310 | * @return ARRAY group name => (MSGNUM of first article, MSGNUM of last article, NNTP flags) |
311 | * @see newgroups |
312 | */ |
313 | |
d4c19591 |
314 | function liste() |
315 | { |
e785d91c |
316 | $this->pline("LIST\r\n"); |
317 | if (substr($this->gline(), 0, 1)!="2") return false; |
318 | $result = $this->gline(); |
65d96b1f |
319 | $array = Array(); |
e785d91c |
320 | while ($result != ".") { |
321 | preg_match("/([^ ]+) (\d+) (\d+) (.)/", $result, $regs); |
322 | $array[$regs[1]] = array(intval($regs[2]), intval($regs[3]), intval($regs[4])); |
323 | $result = $this->gline(); |
324 | } |
325 | return $array; |
bb3b9f8e |
326 | } |
e785d91c |
327 | |
328 | /** get information about recent newsgroups |
329 | * same as list, but information are limited to newgroups created after $_since |
330 | * @param $_since INTEGER unix timestamp |
331 | * @param $_distributions STRING distributions |
332 | * @return ARRAY same format as liste |
333 | * @see liste |
334 | */ |
335 | |
d4c19591 |
336 | function newgroups($_since, $_distributions="") |
337 | { |
e785d91c |
338 | #assume $_since is a unix timestamp |
339 | $distributions = preg_replace("/(\r|\n)/", "", $_distributions); |
340 | $this->pline("NEWGROUPS ".gmdate("ymd His", $_since) |
341 | ." GMT $distributions\r\n"); |
342 | if (substr($this->gline(), 0, 1)!="2") { |
343 | return false; |
344 | } |
345 | $result = $this->gline(); |
346 | $array = array(); |
347 | while ($result != ".") { |
348 | preg_match("/([^ ]+) (\d+) (\d+) (.)/", $result, $regs); |
349 | $array[$regs[1]] = array(intval($regs[2]), intval($regs[3]), intval($regs[4])); |
350 | $result = $this->gline(); |
351 | } |
352 | return $array; |
bb3b9f8e |
353 | } |
e785d91c |
354 | |
355 | /** gets a list of new articles |
356 | * @param $_since INTEGER unix timestamp |
357 | * @parma $_groups STRING pattern of intersting groups |
358 | * @return ARRAY MSGID of new articles |
359 | */ |
360 | |
d4c19591 |
361 | function newnews($_since, $_groups="*", $_distributions="") |
362 | { |
e785d91c |
363 | $distributions = preg_replace("/(\r|\n)/", "", $_distributions); |
364 | $groups = preg_replace("/(\r|\n)/", "", $_groups); |
365 | $array = array(); |
366 | #assume $since is a unix timestamp |
367 | $this->pline("NEWNEWS $_groups ".gmdate("ymd His", $_since)." GMT $distributions\r\n"); |
368 | if (substr($this->gline(), 0, 1)!="2") { |
369 | return false; |
370 | } |
65d96b1f |
371 | while (($result = $this->gline()) != ".") { |
372 | $array[] = $result; |
e785d91c |
373 | } |
374 | return $array; |
bb3b9f8e |
375 | } |
e785d91c |
376 | |
377 | /** Tell the remote server that I am not a user client, but probably another news server |
378 | * @return BOOLEAN true if sucessful |
379 | */ |
380 | |
d4c19591 |
381 | function slave() |
382 | { |
e785d91c |
383 | $this->pline("SLAVE \r\n"); |
384 | return (substr($this->gline(), 0, 1)=="2"); |
bb3b9f8e |
385 | } |
e785d91c |
386 | |
387 | /** implements IHAVE method |
388 | * @param $_msgid STRING MSGID of article |
389 | * @param $_message STRING article |
390 | * @return BOOLEAN |
391 | */ |
392 | |
d4c19591 |
393 | function ihave($_msgid, $_message=false) |
394 | { |
e785d91c |
395 | $msgid = preg_replace("/(\r|\n)/", "", $_msgid); |
396 | if (is_array($message)) { |
397 | $message = join("\n", $_message); |
398 | } else { |
399 | $message = $_message; |
400 | } |
401 | $this->pline("IHAVE $msgid \r\n"); |
402 | $result = $this->gline(); |
403 | if ($message && ($result{0}=="3")) { |
404 | $this->pline("$message\r\n.\r\n"); |
405 | $result = $this->gline(); |
406 | } |
407 | return ($result{0}=="2"); |
bb3b9f8e |
408 | } |
e785d91c |
409 | |
410 | /** closes connection to server |
411 | */ |
412 | |
d4c19591 |
413 | function quit() |
414 | { |
e785d91c |
415 | $this->pline("QUIT\r\n"); |
416 | $this->gline(); |
417 | fclose($this->ns); |
bb3b9f8e |
418 | } |
bb3b9f8e |
419 | |
420 | # NNTP Extensions [RFC 2980] |
421 | |
e785d91c |
422 | /** Returns the date on the remote server |
423 | * @return INTEGER timestamp |
424 | */ |
425 | |
d4c19591 |
426 | function date() |
427 | { |
e785d91c |
428 | $this->pline("DATE \r\n"); |
429 | $result = $this->gline(); |
430 | if (preg_match("/^111 (\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})$/", $result, $r)) { |
431 | return gmmktime($r[4], $r[5], $r[6], $r[2], $r[3], $r[1]); |
432 | } |
433 | return false; |
bb3b9f8e |
434 | } |
e785d91c |
435 | |
436 | /** returns group descriptions |
437 | * @param $_pattern STRING pattern of intersting groups |
438 | * @return ARRAY group name => description |
439 | */ |
440 | |
d4c19591 |
441 | function xgtitle($_pattern="*") |
442 | { |
2dbc0167 |
443 | $pattern = preg_replace("/[\r\n]/", "", $_pattern); |
e785d91c |
444 | $this->pline("XGTITLE $pattern \r\n"); |
445 | if (substr($this->gline(), 0, 1)!="2") return false; |
446 | $result = $this->gline(); |
447 | while ($result != ".") { |
2dbc0167 |
448 | preg_match("/([^ \t]+)[ \t]+(.+)$/", $result, $regs); |
449 | $array[$regs[1]] = $regs[2]; |
e785d91c |
450 | $result = $this->gline(); |
451 | } |
452 | return $array; |
bb3b9f8e |
453 | } |
e785d91c |
454 | |
455 | /** obtain the header field $hdr for all the messages specified |
456 | * @param $_hdr STRING name of the header (eg: 'From') |
457 | * @param $_range STRING range of articles |
458 | * @return ARRAY MSGNUM => header value |
459 | */ |
460 | |
d4c19591 |
461 | function xhdr($_hdr, $_range="") |
462 | { |
e785d91c |
463 | $hdr = preg_replace("/(\r|\n)/", "", $_hdr); |
464 | $range = preg_replace("/(\r|\n)/", "", $_range); |
465 | $this->pline("XHDR $hdr $range \r\n"); |
466 | if (substr($this->gline(), 0, 1)!="2") { |
467 | return false; |
468 | } |
11873d85 |
469 | |
e785d91c |
470 | $array = array(); |
11873d85 |
471 | while (($result = $this->gline()) != '.') { |
e785d91c |
472 | preg_match("/([^ \t]+) (.*)$/", $result, $regs); |
473 | $array[$regs[1]] = $regs[2]; |
e785d91c |
474 | } |
475 | return $array; |
bb3b9f8e |
476 | } |
e785d91c |
477 | |
478 | /** obtain the header field $_hdr matching $_pat for all the messages specified |
479 | * @param $_hdr STRING name of the header (eg: 'From') |
480 | * @param $_range STRING range of articles |
481 | * @param $_pat STRING pattern |
482 | * @return ARRAY MSGNUM => header value |
483 | */ |
484 | |
d4c19591 |
485 | function xpat($_hdr, $_range, $_pat) |
486 | { |
e785d91c |
487 | $hdr = preg_replace("/(\r|\n)/", "", $_hdr); |
488 | $range = preg_replace("/(\r|\n)/", "", $_range); |
489 | $pat = preg_replace("/(\r|\n)/", "", $_pat); |
490 | $this->pline("XPAT $hdr $range $pat\r\n"); |
491 | if (substr($this->gline(), 0, 1)!="2") { |
492 | return false; |
493 | } |
494 | $result = $this->gline(); |
495 | while ($result != ".") { |
496 | preg_match("/([^ \t]+) (.*)$/", $result, $regs); |
497 | $array[$regs[1]] = $regs[2]; |
498 | $result = $this->gline(); |
499 | } |
500 | return $array; |
5d502f47 |
501 | } |
bb3b9f8e |
502 | } |
503 | |
504 | ?> |