810ac1df |
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 | /** Class spoolhead |
11 | * class used in thread overviews |
12 | */ |
13 | class spoolhead { |
14 | /** date (timestamp) */ |
15 | var $date; |
16 | /** subject */ |
17 | var $subject; |
18 | /** author */ |
19 | var $from; |
20 | /** reference of parent */ |
21 | var $parent; |
22 | /** array of children */ |
23 | var $children; |
24 | /** true if post is read */ |
25 | var $isread; |
26 | /** number of posts deeper in this branch of tree */ |
27 | var $desc; |
28 | /** same as desc, but counts only unread posts */ |
29 | var $descunread; |
30 | |
31 | /** constructor |
32 | * @param $_date INTEGER timestamp of post |
33 | * @param $_subject STRING subject of post |
34 | * @param $_from STRING author of post |
35 | * @param $_desc INTEGER desc value (1 for a new post) |
36 | * @param $_read BOOLEAN true if read |
37 | * @param $_descunread INTEGER descunread value (0 for a new post) |
38 | */ |
39 | |
40 | function spoolhead($_date,$_subject,$_from,$_desc=1,$_read=true,$_descunread=0) { |
41 | $this->date=$_date; |
42 | $this->subject=$_subject; |
43 | $this->from=$_from; |
44 | $this->children=array(); |
45 | $this->desc=$_desc; |
46 | $this->isread=$_read; |
47 | $this->descunread=$_descunread; |
48 | } |
49 | } |
50 | |
51 | /** Class spool |
52 | * builds and updates spool |
53 | */ |
54 | |
55 | class spool { |
56 | # var $date; |
57 | /** spool */ |
58 | var $overview; |
59 | /** group name */ |
60 | var $group; |
61 | /** array msgid => msgnum */ |
62 | var $ids; |
63 | |
64 | /** constructor |
65 | * @param $_nntp RESOURCE NNTP socket filehandle |
66 | * @param $_group STRING group name |
67 | * @param $_display INTEGER 1 => all posts, 2 => only threads with new posts |
68 | * @param $_since INTEGER time stamp (used for read/unread) |
69 | */ |
70 | |
71 | function spool(&$_nntp,$_group,$_display=0,$_since=""){ |
72 | $groupinfo = $_nntp->group($_group); |
73 | if (!$groupinfo) { |
74 | $this = false; |
75 | return false; |
76 | } |
77 | if (file_exists("/home/basile/dev/banana-dev/spool/spool-$_group.dat")) { |
78 | $f = fopen("/home/basile/dev/banana-dev/spool/spool-$_group.dat","r"); |
79 | $this = unserialize(fread($f,filesize("/home/basile/dev/banana-dev/spool/spool-$_group.dat"))); |
80 | fclose($f); |
81 | $keys = array_values($this->ids); |
82 | rsort($keys); |
83 | $first = $keys[0]+1; |
84 | $last = $groupinfo[2]; |
85 | } else { |
86 | $first = $groupinfo[1]; |
87 | $last = $groupinfo[2]; |
88 | $this->group = $_group; |
89 | } |
90 | if (($first<=$groupinfo[2]) && ($groupinfo[0]!=0)) { |
91 | $dates = array_map("strtotime", |
92 | $_nntp->xhdr("Date","$first-$last")); |
93 | $msgids=$_nntp->xhdr("Message-ID","$first-$last"); |
94 | $subjects = array_map("headerdecode",$_nntp->xhdr("Subject", |
95 | "$first-$last")); |
96 | $froms = array_map("headerdecode",$_nntp->xhdr("From", |
97 | "$first-$last")); |
98 | $refs = $_nntp->xhdr("References","$first-$last"); |
99 | # $this->date=$nntp->date; |
100 | if ($this->ids) { |
101 | $this->ids=array_merge($this->ids,array_flip($msgids)); |
102 | } else { |
103 | $this->ids=array_flip($msgids); |
104 | } |
105 | |
106 | foreach ($msgids as $id=>$msgid) { |
107 | $msg = new spoolhead($dates[$id],$subjects[$id],$froms[$id], |
108 | (isset($this->overview[$id]->desc)? |
109 | $this->overview[$id]->desc+1:1)); |
110 | $refs[$id]=str_replace("><","> <",$refs[$id]); |
111 | $msgrefs=preg_split("/( |\t)/",strtr($refs[$id],$this->ids)); |
112 | $parents=preg_grep("/^\d+$/",$msgrefs); |
113 | $msg->parent=array_pop($parents); |
114 | $p = $msg->parent; |
115 | while ($p) { |
116 | $this->overview[$p]->desc++; |
117 | $p = $this->overview[$p]->parent; |
118 | } |
119 | if ($msg->parent!="") |
120 | $this->overview[$msg->parent]->children[]=$id; |
121 | $this->overview[$id] = $msg; |
122 | } |
123 | uasort($this->overview,"spoolcompare"); |
124 | $f = fopen("spool/spool-$_group.dat","w"); |
125 | fputs($f,serialize($this)); |
126 | fclose($f); |
127 | } |
128 | |
129 | if ($_since != "") { |
130 | $newpostsids = $_nntp->newnews($_since,$_group); |
131 | if (sizeof($newpostsids)) { |
132 | $newpostsids = array_intersect($newpostsids, |
133 | array_keys($this->ids)); |
134 | if ($newpostsids && !is_null($newpostsids)) { |
135 | foreach ($newpostsids as $mid) { |
136 | $this->overview[$this->ids[$mid]]->isread=false; |
137 | $this->overview[$this->ids[$mid]]->descunread=1; |
138 | $parentmid = $this->overview[$this->ids[$mid]]->parent; |
139 | while (!is_null($parentmid)) { |
140 | $this->overview[$parentmid]->descunread++; |
141 | $parentmid = $this->overview[$parentmid]->parent; |
142 | } |
143 | } |
144 | } |
145 | } |
146 | if (sizeof($newpostsids)>0) { |
147 | $flipids = array_flip($this->ids); |
148 | switch ($_display) { |
149 | case 1: |
150 | foreach ($this->overview as $i=>$p) { |
151 | if (!isset($this->overview[$i]->parent) && |
152 | ($this->overview[$i]->descunread==0)) { |
153 | $this->killdesc($i); |
154 | } |
155 | } |
156 | break; |
157 | case 2: |
158 | foreach ($this->overview as $i=>$p) { |
159 | if ($p->isread) { |
160 | unset($this->overview[$i]); |
161 | unset($flipids[$i]); |
162 | } |
163 | } |
164 | $this->ids=array_flip($flipids); |
165 | break; |
166 | } |
167 | } |
168 | } |
169 | return true; |
170 | } |
171 | |
172 | /** kill post and childrens |
173 | * @param $_id MSGNUM of post |
174 | */ |
175 | |
176 | function killdesc($_id) { |
177 | if (sizeof($this->overview[$_id]->children)) { |
178 | foreach ($this->overview[$_id]->children as $c) { |
179 | $this->killdesc($c); |
180 | } |
181 | } |
182 | unset($this->overview[$_id]); |
183 | # $flipid=array_flip($this->ids); |
184 | # unset($flipid[$id]); |
185 | # $this->ids=array_flip($flipid); |
186 | } |
187 | |
188 | /** delete a post from overview |
189 | * @param $_id MSGNUM of post |
190 | */ |
191 | |
192 | function delid($_id) { |
193 | if (isset($this->overview[$_id])) { |
194 | if (sizeof($this->overview[$_id]->parent)) { |
195 | $this->overview[$this->overview[$_id]->parent]->children = |
196 | array_diff($this->overview[$this->overview[$_id]->parent]->children, |
197 | array($_id)); |
198 | if (sizeof($this->overview[$_id]->children)) { |
199 | $this->overview[$this->overview[$_id]->parent]->children = |
200 | array_merge($this->overview[$this->overview[$_id]->parent]->children, |
201 | $this->overview[$_id]->children); |
202 | foreach ($this->overview[$_id]->children as $c) { |
203 | $this->overview[$c]->parent = $this->overview[$_id]->parent; |
204 | } |
205 | } |
206 | $p = $this->overview[$_id]->parent; |
207 | while ($p) { |
208 | $this->overview[$p]->desc--; |
209 | $p = $this->overview[$p]->parent; |
210 | } |
211 | } elseif (sizeof($this->overview[$_id]->children)) { |
212 | foreach ($this->overview[$_id]->children as $c) { |
213 | $this->overview[$c]->parent = null; |
214 | } |
215 | } |
216 | unset($this->overview[$_id]); |
217 | $ids = array_flip($this->ids); |
218 | unset($ids[$_id]); |
219 | $this->ids = array_flip($ids); |
220 | $f = fopen("spool/spool-{$this->group}.dat","w"); |
221 | fputs($f,serialize($this)); |
222 | fclose($f); |
223 | } |
224 | } |
225 | |
226 | /** displays children tree of a post |
227 | * @param $_id INTEGER MSGNUM of post |
228 | * @param $_index INTEGER linear number of post in the tree |
229 | * @param $_first INTEGER linear number of first post displayed |
230 | * @param $_last INTEGER linear number of last post displayed |
231 | * @param $_ref STRING MSGNUM of current post |
232 | * @param $_pfx_node STRING prefix used for current node |
233 | * @param $_pfx_end STRING prefix used for children of current node |
234 | * @param $_head BOOLEAN true if first post in thread |
235 | */ |
236 | |
237 | function disp_desc($_id,$_index="",$_first=0,$_last=0,$_ref="", |
238 | $_pfx_node="", $_pfx_end="",$_head=true) { |
239 | $debug = false; |
240 | $spfx_f = '<img src="img/k1.gif" height="21" width="9" alt="o" />'; |
241 | $spfx_n = '<img src="img/k2.gif" height="21" width="9" alt="*" />'; |
242 | $spfx_T = '<img src="img/T.gif" height="21" width="12" alt="+" />'; |
243 | $spfx_L = '<img src="img/L.gif" height="21" width="12" alt="`" />'; |
244 | $spfx_s = '<img src="img/s.gif" height="21" width="5" alt="-" />'; |
245 | $spfx_e = '<img src="img/e.gif" height="21" width="12" alt=" " />'; |
246 | $spfx_I = '<img src="img/I.gif" height="21" width="12"alt="|" />'; |
247 | |
248 | if ($_index == "") $_index = $this->getndx($_id); |
249 | |
250 | if (!sizeof($this->overview[$_id]->children) && ($_index<=$_last) |
251 | && ($_index>=$_first)) { |
252 | echo '<tr class="'.($_index%2?"pair":"impair")."\">\n"; |
253 | echo "<td class=\"date\">" |
254 | .formatSpoolHeader("date",$this->overview[$_id]->date,$_id, |
255 | $this->group,($_index==$_ref),$this->overview[$_id]->isread) |
256 | ." </td>\n"; |
257 | echo "<td class=\"subject\"><div class=\"tree\">" |
258 | .$_pfx_node.($_head?$spfx_f:$spfx_s)."</div>" |
259 | .formatSpoolHeader("subject",$this->overview[$_id]->subject,$_id, |
260 | $this->group,($_index==$_ref),$this->overview[$_id]->isread) |
261 | .($debug?" $_id $_index ". |
262 | $this->overview[$_id]->desc." ".$this->overview[$_id]->descunread." ":"")." </td>\n"; |
263 | echo "<td class=\"author\">" |
264 | .formatSpoolHeader("from",$this->overview[$_id]->from,$_id, |
265 | $this->group,($_index==$_ref),$this->overview[$_id]->isread) |
266 | ." </td>\n</tr>"; |
267 | return true; |
268 | } |
269 | $children = $this->overview[$_id]->children; |
270 | if (($_index<=$_last) && ($_index>=$_first)) { |
271 | echo '<tr class="'.($_index%2?"pair":"impair")."\">\n"; |
272 | echo "<td class=\"date\">" |
273 | .formatSpoolHeader("date",$this->overview[$_id]->date,$_id, |
274 | $this->group,($_index==$_ref),$this->overview[$_id]->isread) |
275 | ." </td>\n"; |
276 | echo "<td class=\"subject\"><div class=\"tree\">" |
277 | .$_pfx_node.$spfx_n."</div>" |
278 | .formatSpoolHeader("subject",$this->overview[$_id]->subject,$_id, |
279 | $this->group,($_index==$_ref),$this->overview[$_id]->isread) |
280 | .($debug?" $_id $_index ". |
281 | $this->overview[$_id]->desc." ".$this->overview[$_id]->descunread." ":"")." </td>\n"; |
282 | echo "<td class=\"author\">" |
283 | .formatSpoolHeader("from",$this->overview[$_id]->from,$_id, |
284 | $this->group,($_index==$_ref),$this->overview[$_id]->isread) |
285 | ." </td>\n</tr>"; |
286 | } |
287 | $index=$_index+1; |
288 | while ($child = array_shift($children)) { |
289 | if (($index+$this->overview[$child]->desc-1>=$_first) |
290 | ||($index<$_last)){ |
291 | if (sizeof($children)) { |
292 | $this->disp_desc($child,$index,$_first,$_last,$_ref, |
293 | $_pfx_end.$spfx_T,$_pfx_end.$spfx_I,false); |
294 | } else { |
295 | $this->disp_desc($child,$index,$_first,$_last,$_ref, |
296 | $_pfx_end.$spfx_L,$_pfx_end.$spfx_e,false); |
297 | } |
298 | } |
299 | $index += $this->overview[$child]->desc; |
300 | } |
301 | } |
302 | |
303 | /** Displays overview |
304 | * @param $_first INTEGER MSGNUM of first post |
305 | * @param $_last INTEGER MSGNUM of last post |
306 | * @param $_ref STRING MSGNUM of current/selectionned post |
307 | */ |
308 | |
309 | function disp($_first=0,$_last=0,$_ref="") { |
310 | $index=1; |
311 | if (sizeof($this->overview)) { |
312 | foreach ($this->overview as $id=>$msg) { |
313 | if (!sizeof($msg->parent)) { |
314 | $this->disp_desc($id,$index,$_first,$_last,$_ref); |
315 | $index += $msg->desc; |
316 | } |
317 | } |
318 | } else { |
319 | echo "<tr class=\"pair\">\n"; |
320 | echo "\t<td colspan=\"3\">\n"; |
321 | echo "\t\tNo post in this newsgroup\n"; |
322 | echo "\t</td>\n"; |
323 | echo "</tr>\n"; |
324 | } |
325 | } |
326 | |
327 | /** computes linear post index |
328 | * @param $_id INTEGER MSGNUM of post |
329 | * @return INTEGER linear index of post |
330 | */ |
331 | |
332 | function getndx($_id) { |
333 | $ndx = 1; |
334 | // on remonte l'arbre |
335 | $id_parent = $this->overview[$_id]->parent; |
336 | $id_curr = $_id; |
337 | while (!is_null($id_parent)) { |
338 | for ($i=0; $i<array_search($id_curr, |
339 | $this->overview[$id_parent]->children) ; $i++) { |
340 | $ndx += $this->overview[$this->overview[$id_parent]->children[$i]]->desc; |
341 | } |
342 | $ndx++; //noeud père |
343 | $id_curr = $id_parent; |
344 | $id_parent = $this->overview[$id_curr]->parent; |
345 | } |
346 | // on compte les threads précédents |
347 | foreach ($this->overview as $i=>$p) { |
348 | if ($i==$id_curr) { |
349 | break; |
350 | } |
351 | if (is_null($p->parent)) { |
352 | $ndx += $this->overview[$i]->desc; |
353 | } |
354 | } |
355 | return $ndx; |
356 | } |
357 | } |
358 | |
359 | ?> |