cd33ec11 |
1 | <?php |
2 | |
3 | /** |
f7027a32 |
4 | * imap_search.php |
5 | * |
6c84ba1e |
6 | * Copyright (c) 1999-2005 The SquirrelMail Project Team |
f7027a32 |
7 | * Licensed under the GNU GPL. For full terms see the file COPYING. |
8 | * |
9 | * IMAP asearch routines |
10 | * |
11 | * Subfolder search idea from Patch #806075 by Thomas Pohl xraven at users.sourceforge.net. Thanks Thomas! |
12 | * |
13 | * @version $Id$ |
14 | * @package squirrelmail |
15 | * @subpackage imap |
16 | * @see search.php |
17 | * @link http://www.ietf.org/rfc/rfc3501.txt |
18 | * @author Alex Lemaresquier - Brainstorm - alex at brainstorm.fr |
19 | */ |
cd33ec11 |
20 | |
0e218c3b |
21 | /** This functionality requires the IMAP and date functions |
f7027a32 |
22 | */ |
ff6f916c |
23 | require_once(SM_PATH . 'functions/imap_general.php'); |
cd33ec11 |
24 | require_once(SM_PATH . 'functions/date.php'); |
25 | |
00b05f03 |
26 | /** Set to TRUE to dump the imap dialogue |
f7027a32 |
27 | * @global bool $imap_asearch_debug_dump |
28 | */ |
cd33ec11 |
29 | $imap_asearch_debug_dump = FALSE; |
30 | |
40fbe929 |
31 | /** Imap SEARCH keys |
f7027a32 |
32 | * @global array $imap_asearch_opcodes |
33 | */ |
17a7913a |
34 | global $imap_asearch_opcodes; |
cd33ec11 |
35 | $imap_asearch_opcodes = array( |
91e0dccc |
36 | /* <sequence-set> => 'asequence', */ // Special handling, @see sqimap_asearch_build_criteria() |
cd33ec11 |
37 | /*'ALL' is binary operator */ |
f7027a32 |
38 | 'ANSWERED' => '', |
39 | 'BCC' => 'astring', |
40 | 'BEFORE' => 'adate', |
41 | 'BODY' => 'astring', |
42 | 'CC' => 'astring', |
43 | 'DELETED' => '', |
44 | 'DRAFT' => '', |
45 | 'FLAGGED' => '', |
46 | 'FROM' => 'astring', |
91e0dccc |
47 | 'HEADER' => 'afield', // Special syntax for this one, @see sqimap_asearch_build_criteria() |
f7027a32 |
48 | 'KEYWORD' => 'akeyword', |
49 | 'LARGER' => 'anum', |
50 | 'NEW' => '', |
cd33ec11 |
51 | /*'NOT' is unary operator */ |
f7027a32 |
52 | 'OLD' => '', |
53 | 'ON' => 'adate', |
cd33ec11 |
54 | /*'OR' is binary operator */ |
f7027a32 |
55 | 'RECENT' => '', |
56 | 'SEEN' => '', |
57 | 'SENTBEFORE' => 'adate', |
58 | 'SENTON' => 'adate', |
59 | 'SENTSINCE' => 'adate', |
60 | 'SINCE' => 'adate', |
61 | 'SMALLER' => 'anum', |
62 | 'SUBJECT' => 'astring', |
63 | 'TEXT' => 'astring', |
64 | 'TO' => 'astring', |
65 | 'UID' => 'asequence', |
66 | 'UNANSWERED' => '', |
67 | 'UNDELETED' => '', |
68 | 'UNDRAFT' => '', |
69 | 'UNFLAGGED' => '', |
70 | 'UNKEYWORD' => 'akeyword', |
71 | 'UNSEEN' => '' |
cd33ec11 |
72 | ); |
73 | |
00b05f03 |
74 | /** Imap SEARCH month names encoding |
f7027a32 |
75 | * @global array $imap_asearch_months |
76 | */ |
cd33ec11 |
77 | $imap_asearch_months = array( |
f7027a32 |
78 | '01' => 'jan', |
79 | '02' => 'feb', |
80 | '03' => 'mar', |
81 | '04' => 'apr', |
82 | '05' => 'may', |
83 | '06' => 'jun', |
84 | '07' => 'jul', |
85 | '08' => 'aug', |
86 | '09' => 'sep', |
87 | '10' => 'oct', |
88 | '11' => 'nov', |
89 | '12' => 'dec' |
cd33ec11 |
90 | ); |
91 | |
00b05f03 |
92 | /** |
f7027a32 |
93 | * Function to display an error related to an IMAP-query. |
94 | * We need to do our own error management since we may receive NO responses on purpose (even BAD with SORT or THREAD) |
95 | * so we call sqimap_error_box() if the function exists (sm >= 1.5) or use our own embedded code |
96 | * @global array imap_error_titles |
97 | * @param string $response the imap server response code |
98 | * @param string $query the failed query |
99 | * @param string $message an optional error message |
100 | * @param string $link an optional link to try again |
101 | */ |
00b05f03 |
102 | //@global array color sm colors array |
40fbe929 |
103 | function sqimap_asearch_error_box($response, $query, $message, $link = '') |
ff6f916c |
104 | { |
0daff8c9 |
105 | global $color; |
106 | // Error message titles according to imap server returned code |
107 | $imap_error_titles = array( |
108 | 'OK' => '', |
109 | 'NO' => _("ERROR : Could not complete request."), |
110 | 'BAD' => _("ERROR : Bad or malformed request."), |
111 | 'BYE' => _("ERROR : Imap server closed the connection."), |
112 | '' => _("ERROR : Connection dropped by imap-server.") |
113 | ); |
114 | |
f7027a32 |
115 | |
116 | if (!array_key_exists($response, $imap_error_titles)) |
117 | $title = _("ERROR : Unknown imap response."); |
118 | else |
119 | $title = $imap_error_titles[$response]; |
120 | if ($link == '') |
121 | $message_title = _("Reason Given: "); |
122 | else |
123 | $message_title = _("Possible reason : "); |
124 | if (function_exists('sqimap_error_box')) |
125 | sqimap_error_box($title, $query, $message_title, $message, $link); |
91e0dccc |
126 | else { //Straight copy of 1.5 imap_general.php:sqimap_error_box(). Can be removed at a later time |
f7027a32 |
127 | global $color; |
b28bec15 |
128 | require_once(SM_PATH . 'functions/display_messages.php'); |
6fd95361 |
129 | $string = "<font color=\"$color[2]\"><b>\n" . $title . "</b><br />\n"; |
b28bec15 |
130 | if ($query != '') |
6fd95361 |
131 | $string .= _("Query:") . ' ' . htmlspecialchars($query) . '<br />'; |
b28bec15 |
132 | if ($message_title != '') |
133 | $string .= $message_title; |
134 | if ($message != '') |
135 | $string .= htmlspecialchars($message); |
40fbe929 |
136 | if ($link != '') |
137 | $string .= $link; |
6fd95361 |
138 | $string .= "</font><br />\n"; |
b28bec15 |
139 | error_box($string,$color); |
f7027a32 |
140 | } |
ff6f916c |
141 | } |
142 | |
48af4b64 |
143 | /** |
f7027a32 |
144 | * This is a convenient way to avoid spreading if (isset(... all over the code |
145 | * @param mixed $var any variable (reference) |
146 | * @param mixed $def default value to return if unset (default is zls (''), pass 0 or array() when appropriate) |
147 | * @return mixed $def if $var is unset, otherwise $var |
148 | */ |
2c300e0b |
149 | function asearch_nz(&$var, $def = '') |
cd33ec11 |
150 | { |
f7027a32 |
151 | if (isset($var)) |
152 | return $var; |
153 | return $def; |
cd33ec11 |
154 | } |
155 | |
48af4b64 |
156 | /** |
f7027a32 |
157 | * This should give the same results as PHP 4 >= 4.3.0's html_entity_decode(), |
158 | * except it doesn't handle hex constructs |
159 | * @param string $string string to unhtmlentity() |
160 | * @return string decoded string |
161 | */ |
cd33ec11 |
162 | function asearch_unhtmlentities($string) { |
f7027a32 |
163 | $trans_tbl = array_flip(get_html_translation_table(HTML_ENTITIES)); |
91e0dccc |
164 | for ($i=127; $i<255; $i++) /* Add &#<dec>; entities */ |
f7027a32 |
165 | $trans_tbl['&#' . $i . ';'] = chr($i); |
166 | return strtr($string, $trans_tbl); |
cd33ec11 |
167 | /* I think the one above is quicker, though it should be benchmarked |
f7027a32 |
168 | $string = strtr($string, array_flip(get_html_translation_table(HTML_ENTITIES))); |
169 | return preg_replace("/&#([0-9]+);/E", "chr('\\1')", $string); |
cd33ec11 |
170 | */ |
171 | } |
172 | |
00b05f03 |
173 | /** |
f7027a32 |
174 | * Provide an easy way to dump the imap dialogue if $imap_asearch_debug_dump is TRUE |
175 | * @global bool imap_asearch_debug_dump |
176 | * @param string $var_name |
177 | * @param string $var_var |
178 | */ |
ff6f916c |
179 | function s_debug_dump($var_name, $var_var) |
cd33ec11 |
180 | { |
f7027a32 |
181 | global $imap_asearch_debug_dump; |
182 | if ($imap_asearch_debug_dump) { |
91e0dccc |
183 | if (function_exists('sm_print_r')) //Only exists since 1.4.2 |
184 | sm_print_r($var_name, $var_var); //Better be the 'varargs' version ;) |
f7027a32 |
185 | else { |
186 | echo '<pre>'; |
187 | echo htmlentities($var_name); |
188 | print_r($var_var); |
189 | echo '</pre>'; |
190 | } |
191 | } |
cd33ec11 |
192 | } |
193 | |
00b05f03 |
194 | /** Encode a string to quoted or literal as defined in rfc 3501 |
f7027a32 |
195 | * |
196 | * - 4.3 String: |
91e0dccc |
197 | * A quoted string is a sequence of zero or more 7-bit characters, |
198 | * excluding CR and LF, with double quote (<">) characters at each end. |
f7027a32 |
199 | * - 9. Formal Syntax: |
91e0dccc |
200 | * quoted-specials = DQUOTE / "\" |
f7027a32 |
201 | * @param string $what string to encode |
202 | * @param string $charset search charset used |
203 | * @return string encoded string |
204 | */ |
f945228f |
205 | function sqimap_asearch_encode_string($what, $charset) |
cd33ec11 |
206 | { |
91e0dccc |
207 | if (strtoupper($charset) == 'ISO-2022-JP') // This should be now handled in imap_utf7_local? |
f7027a32 |
208 | $what = mb_convert_encoding($what, 'JIS', 'auto'); |
209 | if (preg_match('/["\\\\\r\n\x80-\xff]/', $what)) |
91e0dccc |
210 | return '{' . strlen($what) . "}\r\n" . $what; // 4.3 literal form |
211 | return '"' . $what . '"'; // 4.3 quoted string form |
cd33ec11 |
212 | } |
213 | |
48af4b64 |
214 | /** |
f7027a32 |
215 | * Parses a user date string into an rfc 3501 date string |
216 | * Handles space, slash, backslash, dot and comma as separators (and dash of course ;=) |
217 | * @global array imap_asearch_months |
218 | * @param string user date |
219 | * @return array a preg_match-style array: |
220 | * - [0] = fully formatted rfc 3501 date string (<day number>-<US month TLA>-<4 digit year>) |
221 | * - [1] = day |
222 | * - [2] = month |
223 | * - [3] = year |
224 | */ |
cd33ec11 |
225 | function sqimap_asearch_parse_date($what) |
226 | { |
f7027a32 |
227 | global $imap_asearch_months; |
228 | |
229 | $what = trim($what); |
230 | $what = ereg_replace('[ /\\.,]+', '-', $what); |
231 | if ($what) { |
232 | preg_match('/^([0-9]+)-+([^\-]+)-+([0-9]+)$/', $what, $what_parts); |
233 | if (count($what_parts) == 4) { |
234 | $what_month = strtolower(asearch_unhtmlentities($what_parts[2])); |
91e0dccc |
235 | /* if (!in_array($what_month, $imap_asearch_months)) {*/ |
f7027a32 |
236 | foreach ($imap_asearch_months as $month_number => $month_code) { |
237 | if (($what_month == $month_number) |
238 | || ($what_month == $month_code) |
239 | || ($what_month == strtolower(asearch_unhtmlentities(getMonthName($month_number)))) |
240 | || ($what_month == strtolower(asearch_unhtmlentities(getMonthAbrv($month_number)))) |
241 | ) { |
242 | $what_parts[2] = $month_number; |
243 | $what_parts[0] = $what_parts[1] . '-' . $month_code . '-' . $what_parts[3]; |
244 | break; |
245 | } |
246 | } |
91e0dccc |
247 | /* }*/ |
f7027a32 |
248 | } |
249 | } |
250 | else |
251 | $what_parts = array(); |
252 | return $what_parts; |
cd33ec11 |
253 | } |
254 | |
00b05f03 |
255 | /** |
f7027a32 |
256 | * Build one criteria sequence |
257 | * @global array imap_asearch_opcodes |
258 | * @param string $opcode search opcode |
259 | * @param string $what opcode argument |
260 | * @param string $charset search charset |
261 | * @return string one full criteria sequence |
262 | */ |
f945228f |
263 | function sqimap_asearch_build_criteria($opcode, $what, $charset) |
cd33ec11 |
264 | { |
f7027a32 |
265 | global $imap_asearch_opcodes; |
266 | |
267 | $criteria = ''; |
268 | switch ($imap_asearch_opcodes[$opcode]) { |
269 | default: |
270 | case 'anum': |
271 | $what = str_replace(' ', '', $what); |
272 | $what = ereg_replace('[^0-9]+[^KMG]$', '', strtoupper($what)); |
273 | if ($what != '') { |
274 | switch (substr($what, -1)) { |
275 | case 'G': |
276 | $what = substr($what, 0, -1) << 30; |
277 | break; |
278 | case 'M': |
279 | $what = substr($what, 0, -1) << 20; |
280 | break; |
281 | case 'K': |
282 | $what = substr($what, 0, -1) << 10; |
283 | break; |
284 | } |
285 | $criteria = $opcode . ' ' . $what . ' '; |
286 | } |
287 | break; |
91e0dccc |
288 | case '': //aflag |
f7027a32 |
289 | $criteria = $opcode . ' '; |
290 | break; |
91e0dccc |
291 | case 'afield': /* HEADER field-name: field-body */ |
f7027a32 |
292 | preg_match('/^([^:]+):(.*)$/', $what, $what_parts); |
293 | if (count($what_parts) == 3) |
294 | $criteria = $opcode . ' ' . |
295 | sqimap_asearch_encode_string($what_parts[1], $charset) . ' ' . |
296 | sqimap_asearch_encode_string($what_parts[2], $charset) . ' '; |
297 | break; |
298 | case 'adate': |
299 | $what_parts = sqimap_asearch_parse_date($what); |
300 | if (isset($what_parts[0])) |
301 | $criteria = $opcode . ' ' . $what_parts[0] . ' '; |
302 | break; |
303 | case 'akeyword': |
304 | case 'astring': |
305 | $criteria = $opcode . ' ' . sqimap_asearch_encode_string($what, $charset) . ' '; |
306 | break; |
307 | case 'asequence': |
308 | $what = ereg_replace('[^0-9:\(\)]+', '', $what); |
309 | if ($what != '') |
310 | $criteria = $opcode . ' ' . $what . ' '; |
311 | break; |
312 | } |
313 | return $criteria; |
cd33ec11 |
314 | } |
315 | |
00b05f03 |
316 | /** |
f7027a32 |
317 | * Another way to do array_values(array_unique(array_merge($to, $from))); |
318 | * @param array $to to array (reference) |
319 | * @param array $from from array |
320 | * @return array uniquely merged array |
321 | */ |
d2f031ed |
322 | function sqimap_array_merge_unique(&$to, $from) |
75d24fd2 |
323 | { |
f7027a32 |
324 | if (empty($to)) |
325 | return $from; |
326 | $count = count($from); |
327 | for ($i = 0; $i < $count; $i++) { |
328 | if (!in_array($from[$i], $to)) |
329 | $to[] = $from[$i]; |
330 | } |
331 | return $to; |
75d24fd2 |
332 | } |
333 | |
00b05f03 |
334 | /** |
f7027a32 |
335 | * Run the imap SEARCH command as defined in rfc 3501 |
336 | * @link http://www.ietf.org/rfc/rfc3501.txt |
337 | * @param resource $imapConnection the current imap stream |
338 | * @param string $search_string the full search expression eg "ALL RECENT" |
339 | * @param string $search_charset charset to use or zls ('') |
340 | * @return array an IDs or UIDs array of matching messages or an empty array |
341 | */ |
cd33ec11 |
342 | function sqimap_run_search($imapConnection, $search_string, $search_charset) |
343 | { |
f7027a32 |
344 | //For some reason, this seems to happen and forbids searching servers not allowing OPTIONAL [CHARSET] |
345 | if (strtoupper($search_charset) == 'US-ASCII') |
346 | $search_charset = ''; |
347 | /* 6.4.4 try OPTIONAL [CHARSET] specification first */ |
348 | if ($search_charset != '') |
349 | $query = 'SEARCH CHARSET "' . strtoupper($search_charset) . '" ' . $search_string; |
350 | else |
351 | $query = 'SEARCH ' . $search_string; |
352 | s_debug_dump('C:', $query); |
353 | $readin = sqimap_run_command($imapConnection, $query, false, $response, $message, TRUE); |
354 | |
355 | /* 6.4.4 try US-ASCII charset if we tried an OPTIONAL [CHARSET] and received a tagged NO response (SHOULD be [BADCHARSET]) */ |
356 | if (($search_charset != '') && (strtoupper($response) == 'NO')) { |
357 | $query = 'SEARCH CHARSET US-ASCII ' . $search_string; |
358 | s_debug_dump('C:', $query); |
359 | $readin = sqimap_run_command($imapConnection, $query, false, $response, $message, TRUE); |
360 | } |
361 | if (strtoupper($response) != 'OK') { |
362 | sqimap_asearch_error_box($response, $query, $message); |
363 | return array(); |
364 | } |
324ac3c5 |
365 | $messagelist = parseUidList($readin,'SEARCH'); |
cd33ec11 |
366 | |
91e0dccc |
367 | if (empty($messagelist)) //Empty search response, ie '* SEARCH' |
f7027a32 |
368 | return array(); |
3f075f6c |
369 | |
f7027a32 |
370 | $cnt = count($messagelist); |
371 | for ($q = 0; $q < $cnt; $q++) |
372 | $id[$q] = trim($messagelist[$q]); |
373 | return $id; |
cd33ec11 |
374 | } |
375 | |
00b05f03 |
376 | /** |
f7027a32 |
377 | * @global bool allow_charset_search user setting |
378 | * @global array languages sm languages array |
379 | * @global string squirrelmail_language user language setting |
380 | * @return string the user defined charset if $allow_charset_search is TRUE else zls ('') |
381 | */ |
f945228f |
382 | function sqimap_asearch_get_charset() |
383 | { |
f7027a32 |
384 | global $allow_charset_search, $languages, $squirrelmail_language; |
f945228f |
385 | |
f7027a32 |
386 | if ($allow_charset_search) |
387 | return $languages[$squirrelmail_language]['CHARSET']; |
388 | return ''; |
f945228f |
389 | } |
390 | |
00b05f03 |
391 | /** |
f7027a32 |
392 | * Convert sm internal sort to imap sort taking care of: |
393 | * - user defined date sorting (ARRIVAL vs DATE) |
394 | * - if the searched mailbox is the sent folder then TO is being used instead of FROM |
395 | * - reverse order by using REVERSE |
396 | * @param string $mailbox mailbox name to sort |
397 | * @param integer $sort_by sm sort criteria index |
398 | * @global bool internal_date_sort sort by arrival date instead of message date |
399 | * @global string sent_folder sent folder name |
400 | * @return string imap sort criteria |
401 | */ |
c2d47d51 |
402 | function sqimap_asearch_get_sort_criteria($mailbox, $sort_by) |
403 | { |
f7027a32 |
404 | global $internal_date_sort, $sent_folder; |
c2d47d51 |
405 | |
f7027a32 |
406 | $sort_opcodes = array ('DATE', 'FROM', 'SUBJECT', 'SIZE'); |
407 | if ($internal_date_sort == true) |
408 | $sort_opcodes[0] = 'ARRIVAL'; |
e50f5ac2 |
409 | // if (handleAsSent($mailbox)) |
410 | // if (isSentFolder($mailbox)) |
f7027a32 |
411 | if ($mailbox == $sent_folder) |
412 | $sort_opcodes[1] = 'TO'; |
413 | return (($sort_by % 2) ? '' : 'REVERSE ') . $sort_opcodes[($sort_by >> 1) & 3]; |
c2d47d51 |
414 | } |
415 | |
40fbe929 |
416 | /** |
f7027a32 |
417 | * @param string $cur_mailbox unformatted mailbox name |
418 | * @param array $boxes_unformatted selectable mailbox unformatted names array (reference) |
419 | * @return array sub mailboxes unformatted names |
420 | */ |
0e218c3b |
421 | function sqimap_asearch_get_sub_mailboxes($cur_mailbox, &$mboxes_array) |
40fbe929 |
422 | { |
f7027a32 |
423 | $sub_mboxes_array = array(); |
424 | $boxcount = count($mboxes_array); |
425 | for ($boxnum=0; $boxnum < $boxcount; $boxnum++) { |
426 | if (isBoxBelow($mboxes_array[$boxnum], $cur_mailbox)) |
427 | $sub_mboxes_array[] = $mboxes_array[$boxnum]; |
428 | } |
429 | return $sub_mboxes_array; |
40fbe929 |
430 | } |
431 | |
00b05f03 |
432 | /** |
f7027a32 |
433 | * Create the search query strings for all given criteria and merge results for every mailbox |
434 | * @param resource $imapConnection |
435 | * @param array $mailbox_array (reference) |
436 | * @param array $biop_array (reference) |
437 | * @param array $unop_array (reference) |
438 | * @param array $where_array (reference) |
439 | * @param array $what_array (reference) |
440 | * @param array $exclude_array (reference) |
441 | * @param array $sub_array (reference) |
442 | * @param array $mboxes_array selectable unformatted mailboxes names (reference) |
443 | * @return array array(mailbox => array(UIDs)) |
444 | */ |
0e218c3b |
445 | function sqimap_asearch($imapConnection, &$mailbox_array, &$biop_array, &$unop_array, &$where_array, &$what_array, &$exclude_array, &$sub_array, &$mboxes_array) |
cd33ec11 |
446 | { |
c2d47d51 |
447 | |
f7027a32 |
448 | $search_charset = sqimap_asearch_get_charset(); |
324ac3c5 |
449 | $mbox_search = array(); |
f7027a32 |
450 | $search_string = ''; |
451 | $cur_mailbox = $mailbox_array[0]; |
91e0dccc |
452 | $cur_biop = ''; /* Start with ALL */ |
f7027a32 |
453 | /* We loop one more time than the real array count, so the last search gets fired */ |
454 | for ($cur_crit=0,$iCnt=count($where_array); $cur_crit <= $iCnt; ++$cur_crit) { |
455 | if (empty($exclude_array[$cur_crit])) { |
456 | $next_mailbox = (isset($mailbox_array[$cur_crit])) ? $mailbox_array[$cur_crit] : false; |
457 | if ($next_mailbox != $cur_mailbox) { |
91e0dccc |
458 | $search_string = trim($search_string); /* Trim out last space */ |
f7027a32 |
459 | if ($cur_mailbox == 'All Folders') |
696155b5 |
460 | $search_mboxes = $mboxes_array; |
f7027a32 |
461 | else if ((!empty($sub_array[$cur_crit - 1])) || (!in_array($cur_mailbox, $mboxes_array))) |
462 | $search_mboxes = sqimap_asearch_get_sub_mailboxes($cur_mailbox, $mboxes_array); |
463 | else |
464 | $search_mboxes = array($cur_mailbox); |
465 | foreach ($search_mboxes as $cur_mailbox) { |
324ac3c5 |
466 | if (isset($mbox_search[$cur_mailbox])) { |
467 | $mbox_search[$cur_mailbox]['search'] .= ' ' . $search_string; |
468 | } else { |
469 | $mbox_search[$cur_mailbox]['search'] = $search_string; |
470 | } |
471 | $mbox_search[$cur_mailbox]['charset'] = $search_charset; |
472 | } |
f7027a32 |
473 | $cur_mailbox = $next_mailbox; |
474 | $search_string = ''; |
f7027a32 |
475 | } |
476 | if (isset($where_array[$cur_crit]) && empty($exclude_array[$cur_crit])) { |
477 | for ($crit = $cur_crit; $crit < count($where_array); $crit++) { |
478 | $criteria = trim(sqimap_asearch_build_criteria($where_array[$crit], $what_array[$crit], $search_charset)); |
479 | if (!empty($criteria) && empty($exclude_array[$crit])) { |
480 | if (asearch_nz($mailbox_array[$crit]) == $cur_mailbox) { |
481 | $unop = $unop_array[$crit]; |
482 | if (!empty($unop)) { |
483 | $criteria = $unop . ' ' . $criteria; |
484 | } |
485 | $aCriteria[] = array($biop_array[$crit], $criteria); |
486 | } |
324ac3c5 |
487 | } |
f7027a32 |
488 | // unset something |
489 | $exclude_array[$crit] = true; |
490 | } |
491 | $aSearch = array(); |
492 | for($i=0,$iCnt=count($aCriteria);$i<$iCnt;++$i) { |
493 | $cur_biop = $aCriteria[$i][0]; |
494 | $next_biop = (isset($aCriteria[$i+1][0])) ? $aCriteria[$i+1][0] : false; |
495 | if ($next_biop != $cur_biop && $next_biop == 'OR') { |
496 | $aSearch[] = 'OR '.$aCriteria[$i][1]; |
497 | } else if ($cur_biop != 'OR') { |
498 | $aSearch[] = 'ALL '.$aCriteria[$i][1]; |
696155b5 |
499 | } else { // OR only supports 2 search keys so we need to create a parenthesized list |
f7027a32 |
500 | $prev_biop = (isset($aCriteria[$i-1][0])) ? $aCriteria[$i-1][0] : false; |
501 | if ($prev_biop == $cur_biop) { |
502 | $last = $aSearch[$i-1]; |
503 | if (!substr($last,-1) == ')') { |
504 | $aSearch[$i-1] = "(OR $last"; |
505 | $aSearch[] = $aCriteria[$i][1].')'; |
506 | } else { |
507 | $sEnd = ''; |
508 | while ($last && substr($last,-1) == ')') { |
696155b5 |
509 | $last = substr($last,0,-1); |
510 | $sEnd .= ')'; |
324ac3c5 |
511 | } |
f7027a32 |
512 | $aSearch[$i-1] = "(OR $last"; |
513 | $aSearch[] = $aCriteria[$i][1].$sEnd.')'; |
514 | } |
515 | } else { |
516 | $aSearch[] = $aCriteria[$i][1]; |
517 | } |
518 | } |
f7027a32 |
519 | } |
520 | $search_string .= implode(' ',$aSearch); |
521 | } |
f7027a32 |
522 | } |
523 | } |
324ac3c5 |
524 | return ($mbox_search); |
cd33ec11 |
525 | } |
526 | |
6fd95361 |
527 | ?> |