cd33ec11 |
1 | <?php |
2 | |
3 | /** |
0e1a248b |
4 | * imap_search.php |
5 | * |
0e1a248b |
6 | * IMAP asearch routines |
7 | * |
8 | * Subfolder search idea from Patch #806075 by Thomas Pohl xraven at users.sourceforge.net. Thanks Thomas! |
9 | * |
4b4abf93 |
10 | * @author Alex Lemaresquier - Brainstorm <alex at brainstorm.fr> |
11 | * @copyright © 1999-2005 The SquirrelMail Project Team |
12 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License |
0e1a248b |
13 | * @version $Id$ |
14 | * @package squirrelmail |
15 | * @subpackage imap |
16 | * @see search.php |
17 | * @link http://www.ietf.org/rfc/rfc3501.txt |
0e1a248b |
18 | */ |
cd33ec11 |
19 | |
0e218c3b |
20 | /** This functionality requires the IMAP and date functions |
0e1a248b |
21 | */ |
ff6f916c |
22 | require_once(SM_PATH . 'functions/imap_general.php'); |
cd33ec11 |
23 | require_once(SM_PATH . 'functions/date.php'); |
24 | |
0e1a248b |
25 | /** Set to TRUE to dump the IMAP dialogue |
26 | * @global bool $imap_asearch_debug_dump |
27 | */ |
cd33ec11 |
28 | $imap_asearch_debug_dump = FALSE; |
29 | |
0e1a248b |
30 | /** IMAP SEARCH keys |
31 | * @global array $imap_asearch_opcodes |
32 | */ |
17a7913a |
33 | global $imap_asearch_opcodes; |
cd33ec11 |
34 | $imap_asearch_opcodes = array( |
91e0dccc |
35 | /* <sequence-set> => 'asequence', */ // Special handling, @see sqimap_asearch_build_criteria() |
cd33ec11 |
36 | /*'ALL' is binary operator */ |
f7027a32 |
37 | 'ANSWERED' => '', |
38 | 'BCC' => 'astring', |
39 | 'BEFORE' => 'adate', |
40 | 'BODY' => 'astring', |
41 | 'CC' => 'astring', |
42 | 'DELETED' => '', |
43 | 'DRAFT' => '', |
44 | 'FLAGGED' => '', |
45 | 'FROM' => 'astring', |
91e0dccc |
46 | 'HEADER' => 'afield', // Special syntax for this one, @see sqimap_asearch_build_criteria() |
f7027a32 |
47 | 'KEYWORD' => 'akeyword', |
48 | 'LARGER' => 'anum', |
49 | 'NEW' => '', |
cd33ec11 |
50 | /*'NOT' is unary operator */ |
f7027a32 |
51 | 'OLD' => '', |
52 | 'ON' => 'adate', |
cd33ec11 |
53 | /*'OR' is binary operator */ |
f7027a32 |
54 | 'RECENT' => '', |
55 | 'SEEN' => '', |
56 | 'SENTBEFORE' => 'adate', |
57 | 'SENTON' => 'adate', |
58 | 'SENTSINCE' => 'adate', |
59 | 'SINCE' => 'adate', |
60 | 'SMALLER' => 'anum', |
61 | 'SUBJECT' => 'astring', |
62 | 'TEXT' => 'astring', |
63 | 'TO' => 'astring', |
64 | 'UID' => 'asequence', |
65 | 'UNANSWERED' => '', |
66 | 'UNDELETED' => '', |
67 | 'UNDRAFT' => '', |
68 | 'UNFLAGGED' => '', |
69 | 'UNKEYWORD' => 'akeyword', |
70 | 'UNSEEN' => '' |
cd33ec11 |
71 | ); |
72 | |
0e1a248b |
73 | /** IMAP SEARCH month names encoding |
74 | * @global array $imap_asearch_months |
75 | */ |
cd33ec11 |
76 | $imap_asearch_months = array( |
f7027a32 |
77 | '01' => 'jan', |
78 | '02' => 'feb', |
79 | '03' => 'mar', |
80 | '04' => 'apr', |
81 | '05' => 'may', |
82 | '06' => 'jun', |
83 | '07' => 'jul', |
84 | '08' => 'aug', |
85 | '09' => 'sep', |
86 | '10' => 'oct', |
87 | '11' => 'nov', |
88 | '12' => 'dec' |
cd33ec11 |
89 | ); |
90 | |
00b05f03 |
91 | /** |
0e1a248b |
92 | * Function to display an error related to an IMAP query. |
93 | * We need to do our own error management since we may receive NO responses on purpose (even BAD with SORT or THREAD) |
94 | * so we call sqimap_error_box() if the function exists (sm >= 1.5) or use our own embedded code |
95 | * @global array imap_error_titles |
96 | * @param string $response the imap server response code |
97 | * @param string $query the failed query |
98 | * @param string $message an optional error message |
99 | * @param string $link an optional link to try again |
100 | */ |
00b05f03 |
101 | //@global array color sm colors array |
40fbe929 |
102 | function sqimap_asearch_error_box($response, $query, $message, $link = '') |
ff6f916c |
103 | { |
0daff8c9 |
104 | global $color; |
0e1a248b |
105 | // Error message titles according to IMAP server returned code |
0daff8c9 |
106 | $imap_error_titles = array( |
107 | 'OK' => '', |
0e1a248b |
108 | 'NO' => _("ERROR: Could not complete request."), |
109 | 'BAD' => _("ERROR: Bad or malformed request."), |
110 | 'BYE' => _("ERROR: IMAP server closed the connection."), |
111 | '' => _("ERROR: Connection dropped by IMAP server.") |
0daff8c9 |
112 | ); |
113 | |
f7027a32 |
114 | |
115 | if (!array_key_exists($response, $imap_error_titles)) |
0e1a248b |
116 | $title = _("ERROR: Unknown IMAP response."); |
f7027a32 |
117 | else |
118 | $title = $imap_error_titles[$response]; |
119 | if ($link == '') |
0e1a248b |
120 | $message_title = _("Reason Given:"); |
f7027a32 |
121 | else |
0e1a248b |
122 | $message_title = _("Possible reason:"); |
123 | $message_title .= ' '; |
f7027a32 |
124 | if (function_exists('sqimap_error_box')) |
125 | sqimap_error_box($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 | /** |
0e1a248b |
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 | /** |
0e1a248b |
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); |
0e1a248b |
170 | */ |
cd33ec11 |
171 | } |
172 | |
00b05f03 |
173 | /** |
0e1a248b |
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 $var_var |
f8a1ed5a |
178 | * @deprecated contains workarounds for 1.4.0 and older code. |
7e627c96 |
179 | * code without workarounds uses regular sm 1.4.2+ functions. |
180 | * it is not compatible with 1.4.1 |
181 | * @todo remove debugging function |
0e1a248b |
182 | */ |
ff6f916c |
183 | function s_debug_dump($var_name, $var_var) |
cd33ec11 |
184 | { |
f7027a32 |
185 | global $imap_asearch_debug_dump; |
186 | if ($imap_asearch_debug_dump) { |
91e0dccc |
187 | if (function_exists('sm_print_r')) //Only exists since 1.4.2 |
188 | sm_print_r($var_name, $var_var); //Better be the 'varargs' version ;) |
f7027a32 |
189 | else { |
190 | echo '<pre>'; |
191 | echo htmlentities($var_name); |
192 | print_r($var_var); |
193 | echo '</pre>'; |
194 | } |
195 | } |
cd33ec11 |
196 | } |
197 | |
00b05f03 |
198 | /** Encode a string to quoted or literal as defined in rfc 3501 |
0e1a248b |
199 | * |
200 | * - 4.3 String: |
201 | * A quoted string is a sequence of zero or more 7-bit characters, |
202 | * excluding CR and LF, with double quote (<">) characters at each end. |
203 | * - 9. Formal Syntax: |
204 | * quoted-specials = DQUOTE / "\" |
205 | * @param string $what string to encode |
206 | * @param string $charset search charset used |
207 | * @return string encoded string |
208 | */ |
f945228f |
209 | function sqimap_asearch_encode_string($what, $charset) |
cd33ec11 |
210 | { |
91e0dccc |
211 | if (strtoupper($charset) == 'ISO-2022-JP') // This should be now handled in imap_utf7_local? |
f7027a32 |
212 | $what = mb_convert_encoding($what, 'JIS', 'auto'); |
213 | if (preg_match('/["\\\\\r\n\x80-\xff]/', $what)) |
91e0dccc |
214 | return '{' . strlen($what) . "}\r\n" . $what; // 4.3 literal form |
215 | return '"' . $what . '"'; // 4.3 quoted string form |
cd33ec11 |
216 | } |
217 | |
48af4b64 |
218 | /** |
0e1a248b |
219 | * Parses a user date string into an rfc 3501 date string |
220 | * Handles space, slash, backslash, dot and comma as separators (and dash of course ;=) |
221 | * @global array imap_asearch_months |
222 | * @param string user date |
223 | * @return array a preg_match-style array: |
224 | * - [0] = fully formatted rfc 3501 date string (<day number>-<US month TLA>-<4 digit year>) |
225 | * - [1] = day |
226 | * - [2] = month |
227 | * - [3] = year |
228 | */ |
cd33ec11 |
229 | function sqimap_asearch_parse_date($what) |
230 | { |
f7027a32 |
231 | global $imap_asearch_months; |
232 | |
233 | $what = trim($what); |
234 | $what = ereg_replace('[ /\\.,]+', '-', $what); |
235 | if ($what) { |
236 | preg_match('/^([0-9]+)-+([^\-]+)-+([0-9]+)$/', $what, $what_parts); |
237 | if (count($what_parts) == 4) { |
238 | $what_month = strtolower(asearch_unhtmlentities($what_parts[2])); |
91e0dccc |
239 | /* if (!in_array($what_month, $imap_asearch_months)) {*/ |
f7027a32 |
240 | foreach ($imap_asearch_months as $month_number => $month_code) { |
241 | if (($what_month == $month_number) |
242 | || ($what_month == $month_code) |
243 | || ($what_month == strtolower(asearch_unhtmlentities(getMonthName($month_number)))) |
244 | || ($what_month == strtolower(asearch_unhtmlentities(getMonthAbrv($month_number)))) |
245 | ) { |
246 | $what_parts[2] = $month_number; |
247 | $what_parts[0] = $what_parts[1] . '-' . $month_code . '-' . $what_parts[3]; |
248 | break; |
249 | } |
250 | } |
91e0dccc |
251 | /* }*/ |
f7027a32 |
252 | } |
253 | } |
254 | else |
255 | $what_parts = array(); |
256 | return $what_parts; |
cd33ec11 |
257 | } |
258 | |
00b05f03 |
259 | /** |
0e1a248b |
260 | * Build one criteria sequence |
261 | * @global array imap_asearch_opcodes |
262 | * @param string $opcode search opcode |
263 | * @param string $what opcode argument |
264 | * @param string $charset search charset |
265 | * @return string one full criteria sequence |
266 | */ |
f945228f |
267 | function sqimap_asearch_build_criteria($opcode, $what, $charset) |
cd33ec11 |
268 | { |
f7027a32 |
269 | global $imap_asearch_opcodes; |
270 | |
271 | $criteria = ''; |
272 | switch ($imap_asearch_opcodes[$opcode]) { |
273 | default: |
274 | case 'anum': |
275 | $what = str_replace(' ', '', $what); |
276 | $what = ereg_replace('[^0-9]+[^KMG]$', '', strtoupper($what)); |
277 | if ($what != '') { |
278 | switch (substr($what, -1)) { |
279 | case 'G': |
280 | $what = substr($what, 0, -1) << 30; |
281 | break; |
282 | case 'M': |
283 | $what = substr($what, 0, -1) << 20; |
284 | break; |
285 | case 'K': |
286 | $what = substr($what, 0, -1) << 10; |
287 | break; |
288 | } |
289 | $criteria = $opcode . ' ' . $what . ' '; |
290 | } |
291 | break; |
91e0dccc |
292 | case '': //aflag |
f7027a32 |
293 | $criteria = $opcode . ' '; |
294 | break; |
91e0dccc |
295 | case 'afield': /* HEADER field-name: field-body */ |
f7027a32 |
296 | preg_match('/^([^:]+):(.*)$/', $what, $what_parts); |
297 | if (count($what_parts) == 3) |
298 | $criteria = $opcode . ' ' . |
299 | sqimap_asearch_encode_string($what_parts[1], $charset) . ' ' . |
300 | sqimap_asearch_encode_string($what_parts[2], $charset) . ' '; |
301 | break; |
302 | case 'adate': |
303 | $what_parts = sqimap_asearch_parse_date($what); |
304 | if (isset($what_parts[0])) |
305 | $criteria = $opcode . ' ' . $what_parts[0] . ' '; |
306 | break; |
307 | case 'akeyword': |
308 | case 'astring': |
309 | $criteria = $opcode . ' ' . sqimap_asearch_encode_string($what, $charset) . ' '; |
310 | break; |
311 | case 'asequence': |
312 | $what = ereg_replace('[^0-9:\(\)]+', '', $what); |
313 | if ($what != '') |
314 | $criteria = $opcode . ' ' . $what . ' '; |
315 | break; |
316 | } |
317 | return $criteria; |
cd33ec11 |
318 | } |
319 | |
00b05f03 |
320 | /** |
0e1a248b |
321 | * Another way to do array_values(array_unique(array_merge($to, $from))); |
322 | * @param array $to to array (reference) |
323 | * @param array $from from array |
324 | * @return array uniquely merged array |
325 | */ |
d2f031ed |
326 | function sqimap_array_merge_unique(&$to, $from) |
75d24fd2 |
327 | { |
f7027a32 |
328 | if (empty($to)) |
329 | return $from; |
330 | $count = count($from); |
331 | for ($i = 0; $i < $count; $i++) { |
332 | if (!in_array($from[$i], $to)) |
333 | $to[] = $from[$i]; |
334 | } |
335 | return $to; |
75d24fd2 |
336 | } |
337 | |
00b05f03 |
338 | /** |
0e1a248b |
339 | * Run the IMAP SEARCH command as defined in rfc 3501 |
340 | * @link http://www.ietf.org/rfc/rfc3501.txt |
341 | * @param resource $imapConnection the current imap stream |
342 | * @param string $search_string the full search expression eg "ALL RECENT" |
343 | * @param string $search_charset charset to use or zls ('') |
344 | * @return array an IDs or UIDs array of matching messages or an empty array |
345 | * @since 1.5.0 |
346 | */ |
cd33ec11 |
347 | function sqimap_run_search($imapConnection, $search_string, $search_charset) |
348 | { |
f7027a32 |
349 | //For some reason, this seems to happen and forbids searching servers not allowing OPTIONAL [CHARSET] |
350 | if (strtoupper($search_charset) == 'US-ASCII') |
351 | $search_charset = ''; |
352 | /* 6.4.4 try OPTIONAL [CHARSET] specification first */ |
353 | if ($search_charset != '') |
354 | $query = 'SEARCH CHARSET "' . strtoupper($search_charset) . '" ' . $search_string; |
355 | else |
356 | $query = 'SEARCH ' . $search_string; |
357 | s_debug_dump('C:', $query); |
358 | $readin = sqimap_run_command($imapConnection, $query, false, $response, $message, TRUE); |
359 | |
360 | /* 6.4.4 try US-ASCII charset if we tried an OPTIONAL [CHARSET] and received a tagged NO response (SHOULD be [BADCHARSET]) */ |
361 | if (($search_charset != '') && (strtoupper($response) == 'NO')) { |
362 | $query = 'SEARCH CHARSET US-ASCII ' . $search_string; |
363 | s_debug_dump('C:', $query); |
364 | $readin = sqimap_run_command($imapConnection, $query, false, $response, $message, TRUE); |
365 | } |
366 | if (strtoupper($response) != 'OK') { |
367 | sqimap_asearch_error_box($response, $query, $message); |
368 | return array(); |
369 | } |
324ac3c5 |
370 | $messagelist = parseUidList($readin,'SEARCH'); |
cd33ec11 |
371 | |
91e0dccc |
372 | if (empty($messagelist)) //Empty search response, ie '* SEARCH' |
f7027a32 |
373 | return array(); |
3f075f6c |
374 | |
f7027a32 |
375 | $cnt = count($messagelist); |
376 | for ($q = 0; $q < $cnt; $q++) |
377 | $id[$q] = trim($messagelist[$q]); |
378 | return $id; |
cd33ec11 |
379 | } |
380 | |
00b05f03 |
381 | /** |
0e1a248b |
382 | * @global bool allow_charset_search user setting |
383 | * @global array languages sm languages array |
384 | * @global string squirrelmail_language user language setting |
385 | * @return string the user defined charset if $allow_charset_search is TRUE else zls ('') |
386 | */ |
f945228f |
387 | function sqimap_asearch_get_charset() |
388 | { |
f7027a32 |
389 | global $allow_charset_search, $languages, $squirrelmail_language; |
f945228f |
390 | |
f7027a32 |
391 | if ($allow_charset_search) |
392 | return $languages[$squirrelmail_language]['CHARSET']; |
393 | return ''; |
f945228f |
394 | } |
395 | |
00b05f03 |
396 | /** |
0e1a248b |
397 | * Convert SquirrelMail internal sort to IMAP sort taking care of: |
398 | * - user defined date sorting (ARRIVAL vs DATE) |
399 | * - if the searched mailbox is the sent folder then TO is being used instead of FROM |
400 | * - reverse order by using REVERSE |
401 | * @param string $mailbox mailbox name to sort |
402 | * @param integer $sort_by sm sort criteria index |
403 | * @global bool internal_date_sort sort by arrival date instead of message date |
404 | * @global string sent_folder sent folder name |
405 | * @return string imap sort criteria |
406 | */ |
c2d47d51 |
407 | function sqimap_asearch_get_sort_criteria($mailbox, $sort_by) |
408 | { |
f7027a32 |
409 | global $internal_date_sort, $sent_folder; |
c2d47d51 |
410 | |
f7027a32 |
411 | $sort_opcodes = array ('DATE', 'FROM', 'SUBJECT', 'SIZE'); |
412 | if ($internal_date_sort == true) |
413 | $sort_opcodes[0] = 'ARRIVAL'; |
e50f5ac2 |
414 | // if (handleAsSent($mailbox)) |
415 | // if (isSentFolder($mailbox)) |
f7027a32 |
416 | if ($mailbox == $sent_folder) |
417 | $sort_opcodes[1] = 'TO'; |
418 | return (($sort_by % 2) ? '' : 'REVERSE ') . $sort_opcodes[($sort_by >> 1) & 3]; |
c2d47d51 |
419 | } |
420 | |
40fbe929 |
421 | /** |
0e1a248b |
422 | * @param string $cur_mailbox unformatted mailbox name |
423 | * @param array $boxes_unformatted selectable mailbox unformatted names array (reference) |
424 | * @return array sub mailboxes unformatted names |
425 | */ |
0e218c3b |
426 | function sqimap_asearch_get_sub_mailboxes($cur_mailbox, &$mboxes_array) |
40fbe929 |
427 | { |
f7027a32 |
428 | $sub_mboxes_array = array(); |
429 | $boxcount = count($mboxes_array); |
430 | for ($boxnum=0; $boxnum < $boxcount; $boxnum++) { |
431 | if (isBoxBelow($mboxes_array[$boxnum], $cur_mailbox)) |
432 | $sub_mboxes_array[] = $mboxes_array[$boxnum]; |
433 | } |
434 | return $sub_mboxes_array; |
40fbe929 |
435 | } |
436 | |
00b05f03 |
437 | /** |
0e1a248b |
438 | * Create the search query strings for all given criteria and merge results for every mailbox |
439 | * @param resource $imapConnection |
440 | * @param array $mailbox_array (reference) |
441 | * @param array $biop_array (reference) |
442 | * @param array $unop_array (reference) |
443 | * @param array $where_array (reference) |
444 | * @param array $what_array (reference) |
445 | * @param array $exclude_array (reference) |
446 | * @param array $sub_array (reference) |
447 | * @param array $mboxes_array selectable unformatted mailboxes names (reference) |
448 | * @return array array(mailbox => array(UIDs)) |
449 | */ |
0e218c3b |
450 | function sqimap_asearch($imapConnection, &$mailbox_array, &$biop_array, &$unop_array, &$where_array, &$what_array, &$exclude_array, &$sub_array, &$mboxes_array) |
cd33ec11 |
451 | { |
c2d47d51 |
452 | |
f7027a32 |
453 | $search_charset = sqimap_asearch_get_charset(); |
324ac3c5 |
454 | $mbox_search = array(); |
f7027a32 |
455 | $search_string = ''; |
456 | $cur_mailbox = $mailbox_array[0]; |
91e0dccc |
457 | $cur_biop = ''; /* Start with ALL */ |
f7027a32 |
458 | /* We loop one more time than the real array count, so the last search gets fired */ |
459 | for ($cur_crit=0,$iCnt=count($where_array); $cur_crit <= $iCnt; ++$cur_crit) { |
460 | if (empty($exclude_array[$cur_crit])) { |
461 | $next_mailbox = (isset($mailbox_array[$cur_crit])) ? $mailbox_array[$cur_crit] : false; |
462 | if ($next_mailbox != $cur_mailbox) { |
91e0dccc |
463 | $search_string = trim($search_string); /* Trim out last space */ |
f7027a32 |
464 | if ($cur_mailbox == 'All Folders') |
696155b5 |
465 | $search_mboxes = $mboxes_array; |
f7027a32 |
466 | else if ((!empty($sub_array[$cur_crit - 1])) || (!in_array($cur_mailbox, $mboxes_array))) |
467 | $search_mboxes = sqimap_asearch_get_sub_mailboxes($cur_mailbox, $mboxes_array); |
468 | else |
469 | $search_mboxes = array($cur_mailbox); |
470 | foreach ($search_mboxes as $cur_mailbox) { |
324ac3c5 |
471 | if (isset($mbox_search[$cur_mailbox])) { |
472 | $mbox_search[$cur_mailbox]['search'] .= ' ' . $search_string; |
473 | } else { |
474 | $mbox_search[$cur_mailbox]['search'] = $search_string; |
475 | } |
476 | $mbox_search[$cur_mailbox]['charset'] = $search_charset; |
477 | } |
f7027a32 |
478 | $cur_mailbox = $next_mailbox; |
479 | $search_string = ''; |
f7027a32 |
480 | } |
481 | if (isset($where_array[$cur_crit]) && empty($exclude_array[$cur_crit])) { |
482 | for ($crit = $cur_crit; $crit < count($where_array); $crit++) { |
483 | $criteria = trim(sqimap_asearch_build_criteria($where_array[$crit], $what_array[$crit], $search_charset)); |
484 | if (!empty($criteria) && empty($exclude_array[$crit])) { |
485 | if (asearch_nz($mailbox_array[$crit]) == $cur_mailbox) { |
486 | $unop = $unop_array[$crit]; |
487 | if (!empty($unop)) { |
488 | $criteria = $unop . ' ' . $criteria; |
489 | } |
490 | $aCriteria[] = array($biop_array[$crit], $criteria); |
491 | } |
324ac3c5 |
492 | } |
f7027a32 |
493 | // unset something |
494 | $exclude_array[$crit] = true; |
495 | } |
496 | $aSearch = array(); |
497 | for($i=0,$iCnt=count($aCriteria);$i<$iCnt;++$i) { |
498 | $cur_biop = $aCriteria[$i][0]; |
499 | $next_biop = (isset($aCriteria[$i+1][0])) ? $aCriteria[$i+1][0] : false; |
500 | if ($next_biop != $cur_biop && $next_biop == 'OR') { |
501 | $aSearch[] = 'OR '.$aCriteria[$i][1]; |
502 | } else if ($cur_biop != 'OR') { |
503 | $aSearch[] = 'ALL '.$aCriteria[$i][1]; |
696155b5 |
504 | } else { // OR only supports 2 search keys so we need to create a parenthesized list |
f7027a32 |
505 | $prev_biop = (isset($aCriteria[$i-1][0])) ? $aCriteria[$i-1][0] : false; |
506 | if ($prev_biop == $cur_biop) { |
507 | $last = $aSearch[$i-1]; |
508 | if (!substr($last,-1) == ')') { |
509 | $aSearch[$i-1] = "(OR $last"; |
510 | $aSearch[] = $aCriteria[$i][1].')'; |
511 | } else { |
512 | $sEnd = ''; |
513 | while ($last && substr($last,-1) == ')') { |
696155b5 |
514 | $last = substr($last,0,-1); |
515 | $sEnd .= ')'; |
324ac3c5 |
516 | } |
f7027a32 |
517 | $aSearch[$i-1] = "(OR $last"; |
518 | $aSearch[] = $aCriteria[$i][1].$sEnd.')'; |
519 | } |
520 | } else { |
521 | $aSearch[] = $aCriteria[$i][1]; |
522 | } |
523 | } |
f7027a32 |
524 | } |
525 | $search_string .= implode(' ',$aSearch); |
526 | } |
f7027a32 |
527 | } |
528 | } |
324ac3c5 |
529 | return ($mbox_search); |
cd33ec11 |
530 | } |
531 | |
6fd95361 |
532 | ?> |