Set the content-type correct so we can check on multipart/mixed in
[squirrelmail.git] / functions / imap_messages.php
1 <?php
2
3 /**
4 * imap_messages.php
5 *
6 * Copyright (c) 1999-2004 The SquirrelMail Project Team
7 * Licensed under the GNU GPL. For full terms see the file COPYING.
8 *
9 * This implements functions that manipulate messages
10 * NOTE: Quite a few functions in this file are obsolete
11 *
12 * @version $Id$
13 * @package squirrelmail
14 * @subpackage imap
15 */
16
17 /**
18 * Copies specified messages to specified folder
19 * @param int $imap_stream The resource ID for the IMAP connection
20 * @param string $start Beginning of range to copy
21 * @param string $end End of the range to copy
22 * @param string $mailbox Which box to copy to
23 * @deprecated This function is obsolete and should not be used
24 */
25 function sqimap_messages_copy ($imap_stream, $start, $end, $mailbox) {
26 $read = sqimap_run_command ($imap_stream, "COPY $start:$end " . sqimap_encode_mailbox_name($mailbox), true, $response, $message, TRUE);
27 }
28
29 /**
30 * copy a range of messages ($id) to another mailbox ($mailbox)
31 * @param int $imap_stream The resource ID for the IMAP socket
32 * @param string $id The list of messages to copy
33 * @param string $mailbox The destination to copy to
34 * @return void
35 */
36 function sqimap_msgs_list_copy ($imap_stream, $id, $mailbox) {
37 $msgs_id = sqimap_message_list_squisher($id);
38 $read = sqimap_run_command ($imap_stream, "COPY $msgs_id " . sqimap_encode_mailbox_name($mailbox), true, $response, $message, TRUE);
39 }
40
41 /**
42 * move a range of messages ($id) to another mailbox. Deletes the originals.
43 * @param int $imap_stream The resource ID for the IMAP socket
44 * @param string $id The list of messages to move
45 * @param string $mailbox The destination to move to
46 * @return void
47 */
48 function sqimap_msgs_list_move ($imap_stream, $id, $mailbox) {
49 $msgs_id = sqimap_message_list_squisher($id);
50 $read = sqimap_run_command ($imap_stream, "COPY $msgs_id " . sqimap_encode_mailbox_name($mailbox), true, $response, $message, TRUE);
51 $read = sqimap_run_command ($imap_stream, "STORE $msgs_id +FLAGS (\\Deleted)", true, $response,$message, TRUE);
52 }
53
54
55 /**
56 * Deletes specified messages and moves them to trash if possible
57 * @deprecated This function is obsolete and should no longer be used
58 * @param int $imap_steam The resource ID for the IMAP connection
59 * @param string $start Start of range
60 * @param string $end End of range
61 * @param string $mailbox Mailbox messages are being deleted from
62 * @return void
63 */
64 function sqimap_messages_delete ($imap_stream, $start, $end, $mailbox, $bypass_trash=false) {
65 global $move_to_trash, $trash_folder, $auto_expunge;
66
67 if (($move_to_trash == true) && ($bypass_trash != true) &&
68 (sqimap_mailbox_exists($imap_stream, $trash_folder) && ($mailbox != $trash_folder))) {
69 sqimap_messages_copy ($imap_stream, $start, $end, $trash_folder);
70 }
71 sqimap_messages_flag ($imap_stream, $start, $end, "Deleted", true);
72 }
73
74 function sqimap_msgs_list_delete ($imap_stream, $mailbox, $id, $bypass_trash=false) {
75 global $move_to_trash, $trash_folder;
76 $msgs_id = sqimap_message_list_squisher($id);
77 if (($move_to_trash == true) && ($bypass_trash != true) &&
78 (sqimap_mailbox_exists($imap_stream, $trash_folder) && ($mailbox != $trash_folder)) ) {
79 $read = sqimap_run_command ($imap_stream, "COPY $msgs_id " . sqimap_encode_mailbox_name($trash_folder), true, $response, $message, TRUE);
80 }
81 $read = sqimap_run_command ($imap_stream, "STORE $msgs_id +FLAGS (\\Deleted)", true, $response, $message, TRUE);
82 }
83
84
85 /**
86 * Sets the specified messages with specified flag
87 */
88 function sqimap_messages_flag ($imap_stream, $start, $end, $flag, $handle_errors) {
89 $read = sqimap_run_command ($imap_stream, "STORE $start:$end +FLAGS (\\$flag)", $handle_errors, $response, $message, TRUE);
90 }
91
92 function sqimap_toggle_flag($imap_stream, $id, $flag, $set, $handle_errors) {
93 $msgs_id = sqimap_message_list_squisher($id);
94 $set_string = ($set ? '+' : '-');
95 $read = sqimap_run_command ($imap_stream, "STORE $msgs_id ".$set_string."FLAGS ($flag)", $handle_errors, $response, $message, TRUE);
96 }
97
98 /** @deprecated */
99 function sqimap_get_small_header ($imap_stream, $id, $sent) {
100 $res = sqimap_get_small_header_list($imap_stream, $id, $sent);
101 return $res[0];
102 }
103
104 /**
105 * Sort the message list and crunch to be as small as possible
106 * (overflow could happen, so make it small if possible)
107 */
108 function sqimap_message_list_squisher($messages_array) {
109 if( !is_array( $messages_array ) ) {
110 return $messages_array;
111 }
112
113 sort($messages_array, SORT_NUMERIC);
114 $msgs_str = '';
115 while ($messages_array) {
116 $start = array_shift($messages_array);
117 $end = $start;
118 while (isset($messages_array[0]) && $messages_array[0] == $end + 1) {
119 $end = array_shift($messages_array);
120 }
121 if ($msgs_str != '') {
122 $msgs_str .= ',';
123 }
124 $msgs_str .= $start;
125 if ($start != $end) {
126 $msgs_str .= ':' . $end;
127 }
128 }
129 return $msgs_str;
130 }
131
132 /**
133 * Retrieves an array with a sorted uid list. Sorting is done on the imap server
134 *
135 * @param resource $imap_stream IMAP socket connection
136 * @param string $sSortField Field to sort on
137 * @param bool $reverse Reverse order search
138 * @return array $id sorted uid list
139 */
140 function sqimap_get_sort_order ($imap_stream, $sSortField,$reverse) {
141 global $default_charset,
142 $sent_folder;
143
144 $id = array();
145 $sort_test = array();
146 $sort_query = '';
147
148 if ($sSortField) {
149 if ($reverse) {
150 $sSortField = 'REVERSE '.$sSortField;
151 }
152 $query = "SORT ($sSortField) ".strtoupper($default_charset).' ALL';
153 $sort_test = sqimap_run_command ($imap_stream, $query, true, $response, $message, TRUE);
154 }
155 if (isset($sort_test[0])) {
156 for ($i=0,$iCnt=count($sort_test);$i<$iCnt;++$i) {
157 if (preg_match("/^\* SORT (.+)$/", $sort_test[$i], $regs)) {
158 $id = preg_split("/ /", trim($regs[1]));
159 break;
160 }
161 }
162 }
163 if (!preg_match("/OK/", $response)) {
164 return false;
165 } else {
166 return $id;
167 }
168 }
169
170 /**
171 * Retrieves an array with a sorted uid list. Sorting is done by SquirrelMail
172 *
173 * @param resource $imap_stream IMAP socket connection
174 * @param string $sSortField Field to sort on
175 * @param bool $reverse Reverse order search
176 * @return array $aUid sorted uid list
177 */
178 function get_squirrel_sort ($imap_stream, $sSortField, $reverse = false) {
179 if ($sSortField != 'RFC822.SIZE' && $sSortField != 'INTERNALDATE') {
180 $msgs = sqimap_get_small_header_list($imap_stream, false, '*',
181 array($sSortField), array());
182 } else {
183 $msgs = sqimap_get_small_header_list($imap_stream, false, '*',
184 array(), array($sSortField));
185 }
186 $aUid = array();
187 $walk = false;
188 switch ($sSortField) {
189 // natcasesort section
190 case 'FROM':
191 case 'TO':
192 case 'CC':
193 if(!$walk) {
194 array_walk($msgs, create_function('&$v,&$k,$f',
195 '$v[$f] = (isset($v[$f])) ? $v[$f] : "";
196 $addr = parseAddress($v[$f]);
197 $v[$f] = ($addr[0][1]) ? decodeHeader($addr[0][1]):$addr[0][0];'),$sSortField);
198 $walk = true;
199 }
200 // nobreak
201 case 'SUBJECT':
202 if(!$walk) {
203 array_walk($msgs, create_function('&$v,&$k,$f',
204 '$v[$f] = (isset($v[$f])) ? $v[$f] : "";
205 $v[$f] = strtolower(decodeHeader(trim($v[$f])));
206 $v[$f] = (preg_match("/^(vedr|sv|re|aw|\[\w\]):\s*(.*)$/si", $v[$f], $matches)) ?
207 $matches[2] : $v[$f];'),$sSortField);
208 $walk = true;
209 }
210 foreach ($msgs as $item) {
211 $aUid[$item['ID']] = $item[$sSortField];
212 }
213 natcasesort($aUid);
214 $aUid = array_keys($aUid);
215 if ($reverse) {
216 $aUid = array_reverse($aUid);
217 }
218 break;
219 // \natcasesort section
220 // sort_numeric section
221 case 'DATE':
222 case 'INTERNALDATE':
223 if(!$walk) {
224 array_walk($msgs, create_function('&$v,$k,$f',
225 '$v[$f] = (isset($v[$f])) ? $v[$f] : "";
226 $v[$f] = getTimeStamp(explode(" ",$v[$f]));'),$sSortField);
227 $walk = true;
228 }
229 // nobreak;
230 case 'RFC822.SIZE':
231 if(!$walk) {
232 // redefine $sSortField to maintain the same namespace between
233 // server-side sorting and squirrelmail sorting
234 $sSortField = 'SIZE';
235 }
236 foreach ($msgs as $item) {
237 $aUid[$item['ID']] = (isset($item[$sSortField])) ? $item[$sSortField] : 0;
238 }
239 if ($reverse) {
240 arsort($aUid,SORT_NUMERIC);
241 } else {
242 asort($aUid, SORT_NUMERIC);
243 }
244 $aUid = array_keys($aUid);
245 break;
246 // \sort_numeric section
247 case 'UID':
248 $aUid = array_reverse($msgs);
249 break;
250 }
251 return $aUid;
252 }
253
254 /**
255 * Returns an indent array for printMessageinfo()
256 * This represents the amount of indent needed (value),
257 * for this message number (key)
258 */
259
260 /*
261 * Notes for future work:
262 * indent_array should contain: indent_level, parent and flags,
263 * sibling notes ..
264 * To achieve that we need to define the following flags:
265 * 0: hasnochildren
266 * 1: haschildren
267 * 2: is first
268 * 4: is last
269 * a node has sibling nodes if it's not the last node
270 * a node has no sibling nodes if it's the last node
271 * By using binary comparations we can store the flag in one var
272 *
273 * example:
274 * -1 par = 0, level = 0, flag = 1 + 2 + 4 = 7 (haschildren, isfirst, islast)
275 * \-2 par = 1, level = 1, flag = 0 + 2 = 2 (hasnochildren, isfirst)
276 * |-3 par = 1, level = 1, flag = 1 + 4 = 5 (haschildren, islast)
277 * \-4 par = 3, level = 2, flag = 1 + 2 + 4 = 7 (haschildren, isfirst, islast)
278 * \-5 par = 4, level = 3, flag = 0 + 2 + 4 = 6 (hasnochildren, isfirst, islast)
279 */
280 function get_parent_level ($thread_new) {
281 $parent = '';
282 $child = '';
283 $cutoff = 0;
284
285 /*
286 * loop through the threads and take unwanted characters out
287 * of the thread string then chop it up
288 */
289 for ($i=0;$i<count($thread_new);$i++) {
290 $thread_new[$i] = preg_replace("/\s\(/", "(", $thread_new[$i]);
291 $thread_new[$i] = preg_replace("/(\d+)/", "$1|", $thread_new[$i]);
292 $thread_new[$i] = preg_split("/\|/", $thread_new[$i], -1, PREG_SPLIT_NO_EMPTY);
293 }
294 $indent_array = array();
295 if (!$thread_new) {
296 $thread_new = array();
297 }
298 /* looping through the parts of one message thread */
299
300 for ($i=0;$i<count($thread_new);$i++) {
301 /* first grab the parent, it does not indent */
302
303 if (isset($thread_new[$i][0])) {
304 if (preg_match("/(\d+)/", $thread_new[$i][0], $regs)) {
305 $parent = $regs[1];
306 }
307 }
308 $indent_array[$parent] = 0;
309
310 /*
311 * now the children, checking each thread portion for
312 * ),(, and space, adjusting the level and space values
313 * to get the indent level
314 */
315 $level = 0;
316 $spaces = array();
317 $spaces_total = 0;
318 $indent = 0;
319 $fake = FALSE;
320 for ($k=1,$iCnt=count($thread_new[$i])-1;$k<$iCnt;++$k) {
321 $chars = count_chars($thread_new[$i][$k], 1);
322 if (isset($chars['40'])) { /* testing for ( */
323 $level += $chars['40'];
324 }
325 if (isset($chars['41'])) { /* testing for ) */
326 $level -= $chars['41'];
327 $spaces[$level] = 0;
328 /* if we were faking lets stop, this portion
329 * of the thread is over
330 */
331 if ($level == $cutoff) {
332 $fake = FALSE;
333 }
334 }
335 if (isset($chars['32'])) { /* testing for space */
336 if (!isset($spaces[$level])) {
337 $spaces[$level] = 0;
338 }
339 $spaces[$level] += $chars['32'];
340 }
341 for ($x=0;$x<=$level;$x++) {
342 if (isset($spaces[$x])) {
343 $spaces_total += $spaces[$x];
344 }
345 }
346 $indent = $level + $spaces_total;
347 /* must have run into a message that broke the thread
348 * so we are adjusting for that portion
349 */
350 if ($fake == TRUE) {
351 $indent = $indent +1;
352 }
353 if (preg_match("/(\d+)/", $thread_new[$i][$k], $regs)) {
354 $child = $regs[1];
355 }
356 /* the thread must be broken if $indent == 0
357 * so indent the message once and start faking it
358 */
359 if ($indent == 0) {
360 $indent = 1;
361 $fake = TRUE;
362 $cutoff = $level;
363 }
364 /* dont need abs but if indent was negative
365 * errors would occur
366 */
367 $indent_array[$child] = ($indent < 0) ? 0 : $indent;
368 $spaces_total = 0;
369 }
370 }
371 return $indent_array;
372 }
373
374
375 /**
376 * Returns an array with each element as a string representing one
377 * message-thread as returned by the IMAP server.
378 */
379 function get_thread_sort ($imap_stream) {
380 global $thread_new, $sort_by_ref, $default_charset, $server_sort_array, $indent_array;
381 if (sqsession_is_registered('thread_new')) {
382 sqsession_unregister('thread_new');
383 }
384 if (sqsession_is_registered('indent_array')) {
385 sqsession_unregister('indent_array');
386 }
387 if (sqsession_is_registered('server_sort_array')) {
388 sqsession_unregister('server_sort_array');
389 }
390 $thread_temp = array ();
391 if ($sort_by_ref == 1) {
392 $sort_type = 'REFERENCES';
393 } else {
394 $sort_type = 'ORDEREDSUBJECT';
395 }
396 $query = "THREAD $sort_type ".strtoupper($default_charset)." ALL";
397 $thread_test = sqimap_run_command ($imap_stream, $query, true, $response, $message, TRUE);
398 if (isset($thread_test[0])) {
399 for ($i=0,$iCnt=count($thread_test);$i<$iCnt;++$i) {
400 if (preg_match("/^\* THREAD (.+)$/", $thread_test[$i], $regs)) {
401 $thread_list = trim($regs[1]);
402 break;
403 }
404 }
405 } else {
406 $thread_list = "";
407 }
408 if (!preg_match("/OK/", $response)) {
409 $server_sort_array = 'no';
410 return $server_sort_array;
411 }
412 if (isset($thread_list)) {
413 $thread_temp = preg_split("//", $thread_list, -1, PREG_SPLIT_NO_EMPTY);
414 }
415
416 $char_count = count($thread_temp);
417 $counter = 0;
418 $thread_new = array();
419 $k = 0;
420 $thread_new[0] = "";
421 /*
422 * parse the thread response into separate threads
423 *
424 * example:
425 * [0] => (540)
426 * [1] => (1386)
427 * [2] => (1599 759 959 37)
428 * [3] => (492 1787)
429 * [4] => ((933)(1891))
430 * [5] => (1030 (1497)(845)(1637))
431 */
432 for ($i=0,$iCnt=count($thread_temp);$i<$iCnt;$i++) {
433 if ($thread_temp[$i] != ')' && $thread_temp[$i] != '(') {
434 $thread_new[$k] = $thread_new[$k] . $thread_temp[$i];
435 } elseif ($thread_temp[$i] == '(') {
436 $thread_new[$k] .= $thread_temp[$i];
437 $counter++;
438 } elseif ($thread_temp[$i] == ')') {
439 if ($counter > 1) {
440 $thread_new[$k] .= $thread_temp[$i];
441 $counter = $counter - 1;
442 } else {
443 $thread_new[$k] .= $thread_temp[$i];
444 $k++;
445 $thread_new[$k] = "";
446 $counter = $counter - 1;
447 }
448 }
449 }
450 sqsession_register($thread_new, 'thread_new');
451 $thread_new = array_reverse($thread_new);
452 /* place the threads after each other in one string */
453 $thread_list = implode(" ", $thread_new);
454 $thread_list = str_replace("(", " ", $thread_list);
455 $thread_list = str_replace(")", " ", $thread_list);
456 $thread_list = preg_split("/\s/", $thread_list, -1, PREG_SPLIT_NO_EMPTY);
457 $server_sort_array = $thread_list;
458
459 $indent_array = get_parent_level ($thread_new);
460 sqsession_register($indent_array, 'indent_array');
461
462 sqsession_register($server_sort_array, 'server_sort_array');
463 return $thread_list;
464 }
465
466
467 function elapsedTime($start) {
468 $stop = gettimeofday();
469 $timepassed = 1000000 * ($stop['sec'] - $start['sec']) + $stop['usec'] - $start['usec'];
470 return $timepassed;
471 }
472
473 // only used in sqimap_get_small_header_list
474 function parseString($read,&$i) {
475 $char = $read{$i};
476 $s = '';
477 if ($char == '"') {
478 $iPos = ++$i;
479 while (true) {
480 $iPos = strpos($read,'"',$iPos);
481 if (!$iPos) break;
482 if ($iPos && $read{$iPos -1} != '\\') {
483 $s = substr($read,$i,($iPos-$i));
484 $i = $iPos;
485 break;
486 }
487 $iPos++;
488 if ($iPos > strlen($read)) {
489 break;
490 }
491 }
492 } else if ($char == '{') {
493 $lit_cnt = '';
494 ++$i;
495 $iPos = strpos($read,'}',$i);
496 if ($iPos) {
497 $lit_cnt = substr($read, $i, $iPos - $i);
498 $i += strlen($lit_cnt) + 3; /* skip } + \r + \n */
499 /* Now read the literal */
500 $s = ($lit_cnt ? substr($read,$i,$lit_cnt): '');
501 $i += $lit_cnt;
502 /* temp bugfix (SM 1.5 will have a working clean version)
503 too much work to implement that version right now */
504 --$i;
505 } else { /* should never happen */
506 $i += 3; /* } + \r + \n */
507 $s = '';
508 }
509 } else {
510 return false;
511 }
512 ++$i;
513 return $s;
514 }
515
516 // only used in sqimap_get_small_header_list
517 function parseArray($read,&$i) {
518 $i = strpos($read,'(',$i);
519 $i_pos = strpos($read,')',$i);
520 $s = substr($read,$i+1,$i_pos - $i -1);
521 $a = explode(' ',$s);
522 if ($i_pos) {
523 $i = $i_pos+1;
524 return $a;
525 } else {
526 return false;
527 }
528 }
529
530 function sqimap_get_small_header_list ($imap_stream, $msg_list, $show_num=false,
531 $aHeaderFields = array('Date', 'To', 'Cc', 'From', 'Subject', 'X-Priority', 'Content-Type'),
532 $aFetchItems = array('FLAGS', 'RFC822.SIZE', 'INTERNALDATE')) {
533
534 $messages = array();
535 $read_list = array();
536
537 if (array_search('UID',$aFetchItems,true) !== false) {
538 $bUidFetch = false;
539 } else {
540 $bUidFetch = true;
541 }
542
543 /* Get the small headers for each message in $msg_list */
544 if ($show_num != '999999' && $show_num != '*' ) {
545 $msgs_str = sqimap_message_list_squisher($msg_list);
546 /*
547 * We need to return the data in the same order as the caller supplied
548 * in $msg_list, but IMAP servers are free to return responses in
549 * whatever order they wish... So we need to re-sort manually
550 */
551 if ($bUidFetch) {
552 for ($i = 0; $i < sizeof($msg_list); $i++) {
553 $messages["$msg_list[$i]"] = array();
554 }
555 }
556 } else {
557 $msgs_str = '1:*';
558 }
559
560
561
562 /*
563 * Create the query
564 */
565
566 $sFetchItems = '';
567 $query = "FETCH $msgs_str (";
568 if (count($aFetchItems)) {
569 $sFetchItems = implode(' ',$aFetchItems);
570 }
571 if (count($aHeaderFields)) {
572 $sHeaderFields = implode(' ',$aHeaderFields);
573 $sFetchItems .= ' BODY.PEEK[HEADER.FIELDS ('.$sHeaderFields.')]';
574 }
575 $query .= trim($sFetchItems) . ')';
576
577 $read_list = sqimap_run_command_list ($imap_stream, $query, true, $response, $message, $bUidFetch);
578 $i = 0;
579
580 foreach ($read_list as $r) {
581 // use unset because we do isset below
582 $read = implode('',$r);
583
584 /*
585 * #id<space>FETCH<space>(
586 */
587
588 /* extract the message id */
589 $i_space = strpos($read,' ',2);
590 $id = substr($read,2,$i_space-2);
591 $fetch = substr($read,$i_space+1,5);
592 if (!is_numeric($id) && $fetch !== 'FETCH') {
593 $msg['ERROR'] = $read; // htmlspecialchars should be done just before display. this is backend code
594 break;
595 }
596 $i = strpos($read,'(',$i_space+5);
597 $read = substr($read,$i+1);
598 $i_len = strlen($read);
599 $i = 0;
600 while ($i < $i_len && $i !== false) {
601 /* get argument */
602 $read = trim(substr($read,$i));
603 $i_len = strlen($read);
604 $i = strpos($read,' ');
605 $arg = substr($read,0,$i);
606 ++$i;
607 switch ($arg)
608 {
609 case 'UID':
610 $i_pos = strpos($read,' ',$i);
611 if (!$i_pos) {
612 $i_pos = strpos($read,')',$i);
613 }
614 if ($i_pos) {
615 $unique_id = substr($read,$i,$i_pos-$i);
616 $i = $i_pos+1;
617 } else {
618 break 3;
619 }
620 break;
621 case 'FLAGS':
622 $flags = parseArray($read,$i);
623 if (!$flags) break 3;
624 $aFlags = array();
625 foreach ($flags as $flag) {
626 $flag = strtolower($flag);
627 $aFlags[$flag] = true;
628 }
629 $msg['FLAGS'] = $aFlags;
630 break;
631 case 'RFC822.SIZE':
632 $i_pos = strpos($read,' ',$i);
633 if (!$i_pos) {
634 $i_pos = strpos($read,')',$i);
635 }
636 if ($i_pos) {
637 $msg['SIZE'] = substr($read,$i,$i_pos-$i);
638 $i = $i_pos+1;
639 } else {
640 break 3;
641 }
642
643 break;
644 case 'ENVELOPE':
645 break; // to be implemented, moving imap code out of the nessages class
646 sqimap_parse_address($read,$i,$msg);
647 break; // to be implemented, moving imap code out of the nessages class
648 case 'BODYSTRUCTURE':
649 break;
650 case 'INTERNALDATE':
651 $msg['INTERNALDATE'] = str_replace(' ', ' ',parseString($read,$i));
652 break;
653 case 'BODY.PEEK[HEADER.FIELDS':
654 case 'BODY[HEADER.FIELDS':
655 $i = strpos($read,'{',$i);
656 $header = parseString($read,$i);
657 if ($header === false) break 2;
658 /* First we replace all \r\n by \n, and unfold the header */
659 $hdr = trim(str_replace(array("\r\n", "\n\t", "\n "),array("\n", ' ', ' '), $header));
660 /* Now we can make a new header array with */
661 /* each element representing a headerline */
662 $hdr = explode("\n" , $hdr);
663 $aReceived = array();
664 foreach ($hdr as $line) {
665 $pos = strpos($line, ':');
666 if ($pos > 0) {
667 $field = strtolower(substr($line, 0, $pos));
668 if (!strstr($field,' ')) { /* valid field */
669 $value = trim(substr($line, $pos+1));
670 switch($field)
671 {
672 case 'to': $msg['TO'] = $value; break;
673 case 'cc': $msg['CC'] = $value; break;
674 case 'from': $msg['FROM'] = $value; break;
675 case 'date':
676 $msg['DATE'] = str_replace(' ', ' ', $value);
677 break;
678 case 'x-priority': $msg['PRIORITY'] = $value; break;
679 case 'subject': $msg['SUBJECT'] = $value; break;
680 case 'content-type':
681 $type = $value;
682 if ($pos = strpos($type, ";")) {
683 $type = substr($type, 0, $pos);
684 }
685 $type = explode("/", $type);
686 if(!is_array($type) || count($type) < 2) {
687 $msg['TYPE0'] = 'text';
688 $msg['TYPE1'] = 'plain';
689 } else {
690 $msg['TYPE0'] = strtolower($type[0]);
691 $msg['TYPE1'] = strtolower($type[1]);
692 }
693 break;
694 case 'received':
695 $aReceived[] = $value;
696 break;
697 default: break;
698 }
699 }
700 }
701 }
702 if (count($aReceived)) {
703 $msg['RECEIVED'] = $aReceived;
704 }
705 break;
706 default:
707 ++$i;
708 break;
709 }
710 }
711 $msgi ="$unique_id";
712 $msg['ID'] = $unique_id;
713
714 $messages[$msgi] = $msg;
715 ++$msgi;
716 }
717 array_reverse($messages);
718 return $messages;
719 }
720
721 function sqimap_parse_envelope($read, &$i, &$msg) {
722 $arg_no = 0;
723 $arg_a = array();
724 ++$i;
725 for ($cnt = strlen($read); ($i < $cnt) && ($read{$i} != ')'); ++$i) {
726 $char = strtoupper($read{$i});
727 switch ($char) {
728 case '{':
729 case '"':
730 $arg_a[] = parseString($read,$i);
731 ++$arg_no;
732 break;
733 case 'N':
734 /* probably NIL argument */
735 if (strtoupper(substr($read, $i, 3)) == 'NIL') {
736 $arg_a[] = '';
737 ++$arg_no;
738 $i += 2;
739 }
740 break;
741 case '(':
742 /* Address structure (with group support)
743 * Note: Group support is useless on SMTP connections
744 * because the protocol doesn't support it
745 */
746 $addr_a = array();
747 $group = '';
748 $a=0;
749 for (; $i < $cnt && $read{$i} != ')'; ++$i) {
750 if ($read{$i} == '(') {
751 $addr = sqimap_parse_address($read, $i);
752 if (($addr[3] == '') && ($addr[2] != '')) {
753 /* start of group */
754 $group = $addr[2];
755 $group_addr = $addr;
756 $j = $a;
757 } else if ($group && ($addr[3] == '') && ($addr[2] == '')) {
758 /* end group */
759 if ($a == ($j+1)) { /* no group members */
760 $group_addr[4] = $group;
761 $group_addr[2] = '';
762 $group_addr[0] = "$group: Undisclosed recipients;";
763 $addr_a[] = $group_addr;
764 $group ='';
765 }
766 } else {
767 $addr[4] = $group;
768 $addr_a[] = $addr;
769 }
770 ++$a;
771 }
772 }
773 $arg_a[] = $addr_a;
774 break;
775 default: break;
776 }
777 }
778
779 if (count($arg_a) > 9) {
780 $d = strtr($arg_a[0], array(' ' => ' '));
781 $d = explode(' ', $d);
782 if (!$arg_a[1]) $arg_1[1] = '';
783 $msg['DATE'] = $d; /* argument 1: date */
784 $msg['SUBJECT'] = $arg_a[1]; /* argument 2: subject */
785 $msg['FROM'] = is_array($arg_a[2]) ? $arg_a[2][0] : ''; /* argument 3: from */
786 $msg['SENDER'] = is_array($arg_a[3]) ? $arg_a[3][0] : ''; /* argument 4: sender */
787 $msg['REPLY-TO'] = is_array($arg_a[4]) ? $arg_a[4][0] : ''; /* argument 5: reply-to */
788 $msg['TO'] = $arg_a[5]; /* argument 6: to */
789 $msg['CC'] = $arg_a[6]; /* argument 7: cc */
790 $msg['BCC'] = $arg_a[7]; /* argument 8: bcc */
791 $msg['IN-REPLY-TO'] = $arg_a[8]; /* argument 9: in-reply-to */
792 $msg['MESSAGE-ID'] = $arg_a[9]; /* argument 10: message-id */
793 }
794 }
795
796 function sqimap_parse_address($read, &$i) {
797 $arg_a = array();
798 for (; $read{$i} != ')'; ++$i) {
799 $char = strtoupper($read{$i});
800 switch ($char) {
801 case '{':
802 case '"': $arg_a[] = parseString($read,$i); break;
803 case 'n':
804 case 'N':
805 if (strtoupper(substr($read, $i, 3)) == 'NIL') {
806 $arg_a[] = '';
807 $i += 2;
808 }
809 break;
810 default: break;
811 }
812 }
813
814 if (count($arg_a) == 4) {
815 return $arg_a;
816
817 // $adr = new AddressStructure();
818 // $adr->personal = $arg_a[0];
819 // $adr->adl = $arg_a[1];
820 // $adr->mailbox = $arg_a[2];
821 // $adr->host = $arg_a[3];
822 } else {
823 $adr = '';
824 }
825 return $adr;
826 }
827
828 /**
829 * Returns a message array with all the information about a message.
830 * See the documentation folder for more information about this array.
831 */
832 function sqimap_get_message ($imap_stream, $id, $mailbox) {
833 // typecast to int to prohibit 1:* msgs sets
834 $id = (int) $id;
835 $flags = array();
836 $read = sqimap_run_command ($imap_stream, "FETCH $id (FLAGS BODYSTRUCTURE)", true, $response, $message, TRUE);
837 if ($read) {
838 if (preg_match('/.+FLAGS\s\((.*)\)\s/AUi',$read[0],$regs)) {
839 if (trim($regs[1])) {
840 $flags = preg_split('/ /', $regs[1],-1,'PREG_SPLIT_NI_EMPTY');
841 }
842 }
843 } else {
844 /* the message was not found, maybe the mailbox was modified? */
845 global $sort, $startMessage, $color;
846
847 $errmessage = _("The server couldn't find the message you requested.") .
848 '<p>'._("Most probably your message list was out of date and the message has been moved away or deleted (perhaps by another program accessing the same mailbox).");
849 /* this will include a link back to the message list */
850 error_message($errmessage, $mailbox, $sort, (int) $startMessage, $color);
851 exit;
852 }
853 $bodystructure = implode('',$read);
854 $msg = mime_structure($bodystructure,$flags);
855 $read = sqimap_run_command ($imap_stream, "FETCH $id BODY[HEADER]", true, $response, $message, TRUE);
856 $rfc822_header = new Rfc822Header();
857 $rfc822_header->parseHeader($read);
858 $msg->rfc822_header = $rfc822_header;
859 return $msg;
860 }
861
862 ?>