78cd27b3 |
1 | <?php |
2 | /******************************************************************************** |
3 | * include/spool.inc.php : spool 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 | if(!function_exists('_file_put_contents')) { |
11 | function file_put_contents($filename, $data) |
12 | { |
13 | $fp = fopen($filename, 'w'); |
14 | if(!$fp) { |
15 | trigger_error('file_put_contents cannot write in file '.$filename, E_USER_ERROR); |
16 | return; |
17 | } |
18 | fputs($fp, $data); |
19 | fclose($fp); |
20 | } |
21 | } |
22 | |
23 | function spoolCompare($a,$b) { return ($b->date>=$a->date); } |
24 | |
25 | /** Class spoolhead |
26 | * class used in thread overviews |
27 | */ |
28 | class BananaSpoolHead |
29 | { |
30 | /** date (timestamp) */ |
31 | var $date; |
32 | /** subject */ |
33 | var $subject; |
34 | /** author */ |
35 | var $from; |
36 | /** reference of parent */ |
37 | var $parent; |
38 | /** paren is direct */ |
39 | var $parent_direct; |
40 | /** array of children */ |
41 | var $children = Array(); |
42 | /** true if post is read */ |
43 | var $isread; |
44 | /** number of posts deeper in this branch of tree */ |
45 | var $desc; |
46 | /** same as desc, but counts only unread posts */ |
47 | var $descunread; |
48 | |
49 | /** constructor |
50 | * @param $_date INTEGER timestamp of post |
51 | * @param $_subject STRING subject of post |
52 | * @param $_from STRING author of post |
53 | * @param $_desc INTEGER desc value (1 for a new post) |
54 | * @param $_read BOOLEAN true if read |
55 | * @param $_descunread INTEGER descunread value (0 for a new post) |
56 | */ |
57 | |
58 | function BananaSpoolHead($_date, $_subject, $_from, $_desc=1, $_read=true, $_descunread=0) |
59 | { |
60 | $this->date = $_date; |
61 | $this->subject = $_subject; |
62 | $this->from = $_from; |
63 | $this->desc = $_desc; |
64 | $this->isread = $_read; |
65 | $this->descunread = $_descunread; |
66 | } |
67 | } |
68 | |
69 | /** Class spool |
70 | * builds and updates spool |
71 | */ |
72 | |
73 | define("BANANA_SPOOL_VERSION", '0.2'); |
74 | |
75 | class BananaSpool |
76 | { |
77 | var $version; |
78 | /** spool */ |
79 | var $overview; |
80 | /** group name */ |
81 | var $group; |
82 | /** array msgid => msgnum */ |
83 | var $ids; |
84 | /** thread starts */ |
85 | var $roots; |
86 | |
87 | /** constructor |
88 | * @param $_group STRING group name |
89 | * @param $_display INTEGER 1 => all posts, 2 => only threads with new posts |
90 | * @param $_since INTEGER time stamp (used for read/unread) |
91 | */ |
92 | function BananaSpool($_group, $_display=0, $_since="") |
93 | { |
94 | global $banana; |
95 | $this->group = $_group; |
96 | $groupinfo = $banana->nntp->group($_group); |
97 | if (!$groupinfo) { return ($this = null); } |
98 | |
99 | $this->_readFromFile(); |
100 | |
101 | $do_save = false; |
102 | $first = $banana->maxspool ? max($groupinfo[2]-$banana->maxspool, $groupinfo[1]) : $groupinfo[1]; |
103 | $last = $groupinfo[2]; |
104 | if ($this->version == BANANA_SPOOL_VERSION && is_array($this->overview)) { |
105 | if (count($this->overview)) { |
106 | for ($id = min(array_keys($this->overview)); $id<$first; $id++) { |
107 | $this->delid($id, false); |
108 | $do_save = true; |
109 | } |
110 | } |
111 | if (!empty($this->overview)) { |
112 | $first = max(array_keys($this->overview))+1; |
113 | } else { |
114 | return; |
115 | } |
116 | } else { |
117 | unset($this->overview, $this->ids); |
118 | $this->version = BANANA_SPOOL_VERSION; |
119 | } |
120 | |
121 | if ($first<=$last && $groupinfo[0]) { |
122 | $do_save = true; |
123 | $this->_updateSpool("$first-$last"); |
124 | } |
125 | |
126 | if ($do_save) { $this->_saveToFile(); } |
127 | |
128 | $this->_updateUnread($_since, $_display); |
129 | } |
130 | |
131 | function _readFromFile() |
132 | { |
133 | $file = $this->_spoolfile(); |
134 | if (file_exists($file)) { |
135 | $this = unserialize(file_get_contents($file)); |
136 | } |
137 | } |
138 | |
139 | function _saveToFile() |
140 | { |
141 | $file = $this->_spoolfile(); |
142 | uasort($this->overview, "spoolcompare"); |
143 | |
144 | $this->roots = Array(); |
145 | foreach($this->overview as $id=>$msg) { |
146 | if (is_null($msg->parent)) { |
147 | $this->roots[] = $id; |
148 | } |
149 | } |
150 | |
151 | file_put_contents($file, serialize($this)); |
152 | } |
153 | |
154 | function _spoolfile() |
155 | { |
156 | global $banana; |
157 | $url = parse_url($banana->host); |
158 | $file = $url['host'].'_'.$url['port'].'_'.$this->group; |
159 | return dirname(dirname(__FILE__)).'/spool/'.$file; |
160 | } |
161 | |
162 | function _updateSpool($arg) |
163 | { |
164 | global $banana; |
165 | $dates = array_map('strtotime', $banana->nntp->xhdr('Date', $arg)); |
166 | $subjects = array_map('headerdecode', $banana->nntp->xhdr('Subject', $arg)); |
167 | $froms = array_map('headerdecode', $banana->nntp->xhdr('From', $arg)); |
168 | $msgids = $banana->nntp->xhdr('Message-ID', $arg); |
169 | $refs = $banana->nntp->xhdr('References', $arg); |
170 | |
171 | if (is_array($this->ids)) { |
172 | $this->ids = array_merge($this->ids, array_flip($msgids)); |
173 | } else { |
174 | $this->ids = array_flip($msgids); |
175 | } |
176 | |
177 | foreach ($msgids as $id=>$msgid) { |
178 | $msg = new BananaSpoolHead($dates[$id], $subjects[$id], $froms[$id]); |
179 | $refs[$id] = str_replace('><', '> <', $refs[$id]); |
180 | $msgrefs = preg_split("/[ \t]/", strtr($refs[$id], $this->ids)); |
181 | $parents = preg_grep('/^\d+$/', $msgrefs); |
182 | $msg->parent = array_pop($parents); |
183 | $msg->parent_direct = preg_match('/^\d+$/', array_pop($msgrefs)); |
184 | |
185 | if (isset($this->overview[$id])) { |
186 | $msg->desc = $this->overview[$id]->desc; |
187 | $msg->children = $this->overview[$id]->children; |
188 | } |
189 | $this->overview[$id] = $msg; |
190 | |
191 | if ($p = $msg->parent) { |
192 | if (empty($this->overview[$p])) { |
193 | $this->overview[$p] = new BananaSpoolHead($dates[$p], $subjects[$p], $froms[$p], 1); |
194 | } |
195 | $this->overview[$p]->children[] = $id; |
196 | |
197 | while ($p) { |
198 | $this->overview[$p]->desc += $msg->desc; |
199 | $p = $this->overview[$p]->parent; |
200 | } |
201 | } |
202 | } |
203 | } |
204 | |
205 | function _updateUnread($since, $mode) |
206 | { |
207 | global $banana; |
208 | if (empty($since)) { return; } |
209 | |
210 | if (is_array($newpostsids = $banana->nntp->newnews($since, $this->group))) { |
211 | if (!is_array($this->ids)) { $this->ids = array(); } |
212 | $newpostsids = array_intersect($newpostsids, array_keys($this->ids)); |
213 | foreach ($newpostsids as $mid) { |
214 | $this->overview[$this->ids[$mid]]->isread = false; |
215 | $this->overview[$this->ids[$mid]]->descunread = 1; |
216 | $parentmid = $this->ids[$mid]; |
217 | while (isset($parentmid)) { |
218 | $this->overview[$parentmid]->descunread ++; |
219 | $parentmid = $this->overview[$parentmid]->parent; |
220 | } |
221 | } |
222 | |
223 | if (count($newpostsids)) { |
224 | switch ($mode) { |
225 | case 1: |
226 | foreach ($this->roots as $k=>$i) { |
227 | if ($this->overview[$i]->descunread==0) { |
228 | $this->killdesc($i); |
229 | unset($this->roots[$k]); |
230 | } |
231 | } |
232 | break; |
233 | } |
234 | } |
235 | } |
236 | } |
237 | |
238 | /** kill post and childrens |
239 | * @param $_id MSGNUM of post |
240 | */ |
241 | |
242 | function killdesc($_id) |
243 | { |
244 | if (sizeof($this->overview[$_id]->children)) { |
245 | foreach ($this->overview[$_id]->children as $c) { |
246 | $this->killdesc($c); |
247 | } |
248 | } |
249 | unset($this->overview[$_id]); |
250 | if (($msgid = array_search($_id, $this->ids)) !== false) { |
251 | unset($this->ids[$msgid]); |
252 | } |
253 | } |
254 | |
255 | /** delete a post from overview |
256 | * @param $_id MSGNUM of post |
257 | */ |
258 | |
259 | function delid($_id, $write=true) |
260 | { |
261 | if (isset($this->overview[$_id])) { |
262 | if (sizeof($this->overview[$_id]->parent)) { |
263 | $this->overview[$this->overview[$_id]->parent]->children = |
264 | array_diff($this->overview[$this->overview[$_id]->parent]->children, array($_id)); |
265 | if (sizeof($this->overview[$_id]->children)) { |
266 | $this->overview[$this->overview[$_id]->parent]->children = |
267 | array_merge($this->overview[$this->overview[$_id]->parent]->children, $this->overview[$_id]->children); |
268 | foreach ($this->overview[$_id]->children as $c) { |
269 | $this->overview[$c]->parent = $this->overview[$_id]->parent; |
270 | $this->overview[$c]->parent_direct = false; |
271 | } |
272 | } |
273 | $p = $this->overview[$_id]->parent; |
274 | while ($p) { |
275 | $this->overview[$p]->desc--; |
276 | $p = $this->overview[$p]->parent; |
277 | } |
278 | } elseif (sizeof($this->overview[$_id]->children)) { |
279 | foreach ($this->overview[$_id]->children as $c) { |
280 | $this->overview[$c]->parent = null; |
281 | } |
282 | } |
283 | unset($this->overview[$_id]); |
284 | $msgid = array_search($_id, $this->ids); |
285 | if ($msgid) { |
286 | unset($this->ids[$msgid]); |
287 | } |
288 | |
289 | if ($write) { $this->_saveToFile(); } |
290 | } |
291 | } |
292 | |
293 | /** displays children tree of a post |
294 | * @param $_id INTEGER MSGNUM of post |
295 | * @param $_index INTEGER linear number of post in the tree |
296 | * @param $_first INTEGER linear number of first post displayed |
297 | * @param $_last INTEGER linear number of last post displayed |
298 | * @param $_ref STRING MSGNUM of current post |
299 | * @param $_pfx_node STRING prefix used for current node |
300 | * @param $_pfx_end STRING prefix used for children of current node |
301 | * @param $_head BOOLEAN true if first post in thread |
302 | */ |
303 | |
304 | function _to_html($_id, $_index, $_first=0, $_last=0, $_ref="", $_pfx_node="", $_pfx_end="", $_head=true) |
305 | { |
306 | $spfx_f = '<img src="img/k1.gif" height="21" width="9" alt="o" />'; |
307 | $spfx_n = '<img src="img/k2.gif" height="21" width="9" alt="*" />'; |
308 | $spfx_Tnd = '<img src="img/T-direct.gif" height="21" width="12" alt="+" />'; |
309 | $spfx_Lnd = '<img src="img/L-direct.gif" height="21" width="12" alt="`" />'; |
310 | $spfx_snd = '<img src="img/s-direct.gif" height="21" width="5" alt="-" />'; |
311 | $spfx_T = '<img src="img/T.gif" height="21" width="12" alt="+" />'; |
312 | $spfx_L = '<img src="img/L.gif" height="21" width="12" alt="`" />'; |
313 | $spfx_s = '<img src="img/s.gif" height="21" width="5" alt="-" />'; |
314 | $spfx_e = '<img src="img/e.gif" height="21" width="12" alt=" " />'; |
315 | $spfx_I = '<img src="img/I.gif" height="21" width="12"alt="|" />'; |
316 | |
317 | if ($_index + $this->overview[$_id]->desc < $_first || $_index > $_last) { |
318 | return; |
319 | } |
320 | |
321 | $res = ''; |
322 | |
323 | if ($_index>=$_first) { |
324 | $hc = empty($this->overview[$_id]->children); |
325 | |
326 | $res .= '<tr class="'.($_index%2?'pair':'impair').($this->overview[$_id]->isread?'':' new')."\">\n"; |
327 | $res .= "<td class='date'>".fancyDate($this->overview[$_id]->date)." </td>\n"; |
328 | $res .= "<td class='subj'>" |
329 | ."<div class='tree'>$_pfx_node".($hc?($_head?$spfx_f:($this->overview[$_id]->parent_direct?$spfx_s:$spfx_snd)):$spfx_n) |
330 | ."</div>"; |
331 | if ($_index == $_ref) { |
332 | $res .= '<span class="cur">'.htmlentities($this->overview[$_id]->subject).'</span>'; |
333 | } else { |
334 | $res .= "<a href='?group={$this->group}&artid=$_id'>".htmlentities($this->overview[$_id]->subject).'</a>'; |
335 | } |
336 | $res .= "</td>\n<td class='from'>".formatFrom($this->overview[$_id]->from)."</td>\n</tr>"; |
337 | |
338 | if ($hc) { return $res; } |
339 | } |
340 | |
341 | $_index ++; |
342 | |
343 | $children = $this->overview[$_id]->children; |
344 | while ($child = array_shift($children)) { |
345 | if ($_index > $_last) { return $res; } |
346 | if ($_index+$this->overview[$child]->desc >= $_first) { |
347 | if (sizeof($children)) { |
348 | $res .= $this->_to_html($child, $_index, $_first, $_last, $_ref, |
349 | $_pfx_end.($this->overview[$child]->parent_direct?$spfx_T:$spfx_Tnd), |
350 | $_pfx_end.$spfx_I, false); |
351 | } else { |
352 | $res .= $this->_to_html($child, $_index, $_first, $_last, $_ref, |
353 | $_pfx_end.($this->overview[$child]->parent_direct?$spfx_L:$spfx_Lnd), |
354 | $_pfx_end.$spfx_e, false); |
355 | } |
356 | } |
357 | $_index += $this->overview[$child]->desc; |
358 | } |
359 | |
360 | return $res; |
361 | } |
362 | |
363 | /** Displays overview |
364 | * @param $_first INTEGER MSGNUM of first post |
365 | * @param $_last INTEGER MSGNUM of last post |
366 | * @param $_ref STRING MSGNUM of current/selectionned post |
367 | */ |
368 | |
369 | function to_html($_first=0, $_last=0, $_ref = null) |
370 | { |
371 | $res = '<table class="bicol banana_thread" cellpadding="0" cellspacing="0">'; |
372 | |
373 | if (is_null($_ref)) { |
374 | $res .= '<tr><th>'._b_('Date').'</th>'; |
375 | $res .= '<th>'._b_('Sujet').'</th>'; |
376 | $res .= '<th>'._b_('Auteur').'</th></tr>'; |
377 | } |
378 | |
379 | $index = 1; |
380 | if (sizeof($this->overview)) { |
381 | foreach ($this->roots as $id) { |
382 | $res .= $this->_to_html($id, $index, $_first, $_last, $_ref); |
383 | $index += $this->overview[$id]->desc ; |
384 | if ($index > $_last) { break; } |
385 | } |
386 | } else { |
387 | $res .= '<tr><td colspan="3">'._b_('Aucun message dans ce forum').'</td></tr>'; |
388 | } |
389 | |
390 | return $res .= '</table>'; |
391 | } |
392 | |
393 | /** computes linear post index |
394 | * @param $_id INTEGER MSGNUM of post |
395 | * @return INTEGER linear index of post |
396 | */ |
397 | |
398 | function getndx($_id) |
399 | { |
400 | $ndx = 1; |
401 | $id_cur = $_id; |
402 | while (true) { |
403 | $id_parent = $this->overview[$id_cur]->parent; |
404 | if (is_null($id_parent)) break; |
405 | $pos = array_search($id_cur, $this->overview[$id_parent]->children); |
406 | |
407 | for ($i = 0; $i < $pos ; $i++) { |
408 | $ndx += $this->overview[$this->overview[$id_parent]->children[$i]]->desc; |
409 | } |
410 | $ndx++; //noeud père |
411 | |
412 | $id_cur = $id_parent; |
413 | } |
414 | |
415 | foreach ($this->roots as $i) { |
416 | if ($i==$id_cur) { |
417 | break; |
418 | } |
419 | $ndx += $this->overview[$i]->desc; |
420 | } |
421 | return $ndx; |
422 | } |
423 | } |
424 | |
425 | ?> |