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  23 * @deprecated This function is obsolete and should not be used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  57 * @deprecated This function is obsolete and should no longer be used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, $sSortField = 'UID',$reverse) {
 141     global  $default_charset,
 142             $sent_folder;
 143
 144     $id = array();
 145     $sort_test = array();
 146     $sort_query = '';
 147
 148     if ($sSortField == 'UID') {
 149         $query = "SEARCH UID 1:*";
 150         $uids = sqimap_run_command ($imap_stream, $query, true, $response, $message, true);
 151         if (isset($uids[0])) {
 152             if (preg_match("/^\* SEARCH (.+)$/", $uids[0], $regs)) {
 153                 $id = preg_split("/ /", trim($regs[1]));
 154             }
 155         }
 156         if (!preg_match("/OK/", $response)) {
 157             $id = false;
 158         }
 159         $id = array_reverse($id);
 160         return $id;
 161     }
 162     if ($sSortField) {
 163         if ($reverse) {
 164             $sSortField = 'REVERSE '.$sSortField;
 165         }
 166         $query = "SORT ($sSortField) ".strtoupper($default_charset).' ALL';
 167         $sort_test = sqimap_run_command ($imap_stream, $query, true, $response, $message, TRUE);
 168     }
 169     if (isset($sort_test[0])) {
 170         for ($i=0,$iCnt=count($sort_test);$i<$iCnt;++$i) {
 171             if (preg_match("/^\* SORT (.+)$/", $sort_test[$i], $regs)) {
 172                 $id = preg_split("/ /", trim($regs[1]));
 173             break;
 174             }
 175         }
 176     }
 177     if (!preg_match("/OK/", $response)) {
 178         return false;
 179     } else {
 180         return $id;
 181     }
 182 }
 183
 184 /**
 185 * Retrieves an array with a sorted uid list. Sorting is done by SquirrelMail
 186 *
 187 * @param resource $imap_stream IMAP socket connection
 188 * @param string $sSortField Field to sort on
 189 * @param bool $reverse Reverse order search
 190 * @return array $aUid sorted uid list
 191 */
 192 function get_squirrel_sort ($imap_stream, $sSortField, $reverse = false) {
 193
 194     if ($sSortField == 'UID') {
 195         // FIX ME: this is not needed. Try to find another way to solve this
 196         $query = "SEARCH UID 1:*";
 197         $uids = sqimap_run_command ($imap_stream, $query, true, $response, $message, true);
 198         if (isset($uids[0])) {
 199             if (preg_match("/^\* SEARCH (.+)$/", $uids[0], $regs)) {
 200                 $msgs = preg_split("/ /", trim($regs[1]));
 201             }
 202         }
 203         if (!preg_match("/OK/", $response)) {
 204             $msgs = false;
 205         }
 206     } else if ($sSortField != 'RFC822.SIZE' && $sSortField != 'INTERNALDATE') {
 207         $msgs = sqimap_get_small_header_list($imap_stream, false, '*',
 208                                       array($sSortField), array('UID'));
 209     } else {
 210         $msgs = sqimap_get_small_header_list($imap_stream, false, '*',
 211                                       array(), array('UID', $sSortField));
 212     }
 213     $walk = false;
 214     switch ($sSortField) {
 215       // natcasesort section
 216       case 'FROM':
 217       case 'TO':
 218       case 'CC':
 219         if(!$walk) {
 220             array_walk($msgs, create_function('&$v,&$k,$f',
 221                 '$v[$f] = (isset($v[$f])) ? $v[$f] : "";
 222                  $addr = parseAddress($v[$f]);
 223                  $v[$f] = ($addr[0][1]) ? decodeHeader($addr[0][1]):$addr[0][0];'),$sSortField);
 224             $walk = true;
 225         }
 226         // nobreak
 227       case 'SUBJECT':
 228         if(!$walk) {
 229             array_walk($msgs, create_function('&$v,&$k,$f',
 230                 '$v[$f] = (isset($v[$f])) ? $v[$f] : "";
 231                  $v[$f] = strtolower(decodeHeader(trim($v[$f])));
 232                  $v[$f] = (preg_match("/^(vedr|sv|re|aw|\[\w\]):\s*(.*)$/si", $v[$f], $matches)) ?
 233                                     $matches[2] : $v[$f];'),$sSortField);
 234             $walk = true;
 235         }
 236         foreach ($msgs as $item) {
 237             $aUid[$item['ID']] = $item[$sSortField];
 238         }
 239         natcasesort($aUid);
 240         $aUid = array_keys($aUid);
 241         if ($reverse) {
 242              array_reverse($aUid);
 243         }
 244         break;
 245         //  \natcasesort section
 246       // sort_numeric section
 247       case 'DATE':
 248       case 'INTERNALDATE':
 249         if(!$walk) {
 250             array_walk($msgs, create_function('&$v,$k,$f',
 251                 '$v[$f] = (isset($v[$f])) ? $v[$f] : "";
 252                  $v[$f] = getTimeStamp(explode(" ",$v[$f]));'),$sSortField);
 253             $walk = true;
 254         }
 255         // nobreak;
 256       case 'RFC822.SIZE':
 257         foreach ($msgs as $item) {
 258             $aUid[$item['ID']] = isset($item['SIZE']) ? $item['SIZE'] : 0;
 259         }
 260         if ($reverse) {
 261             arsort($aUid,SORT_NUMERIC);
 262         } else {
 263             asort($aUid, SORT_NUMERIC);
 264         }
 265         $aUid = array_keys($aUid);
 266         break;
 267         // \sort_numeric section
 268       case 'UID':
 269         $aUid = array_reverse($msgs);
 270         break;
 271     }
 272     return $aUid;
 273 }
 274
 275 /**
 276 * Returns an indent array for printMessageinfo()
 277 * This represents the amount of indent needed (value),
 278 * for this message number (key)
 279 */
 280
 281 /*
 282  * Notes for future work:
 283  * indent_array should contain: indent_level, parent and flags,
 284  * sibling notes ..
 285  * To achieve that we  need to define the following flags:
 286  * 0: hasnochildren
 287  * 1: haschildren
 288  * 2: is first
 289  * 4: is last
 290  * a node has sibling nodes if it's not the last node
 291  * a node has no sibling nodes if it's the last node
 292  * By using binary comparations we can store the flag in one var
 293  *
 294  * example:
 295  * -1      par = 0, level = 0, flag = 1 + 2 + 4 = 7 (haschildren,   isfirst, islast)
 296  *  \-2    par = 1, level = 1, flag = 0 + 2     = 2 (hasnochildren, isfirst)
 297  *  |-3    par = 1, level = 1, flag = 1 + 4     = 5 (haschildren,   islast)
 298  *   \-4   par = 3, level = 2, flag = 1 + 2 + 4 = 7 (haschildren,   isfirst, islast)
 299  *     \-5 par = 4, level = 3, flag = 0 + 2 + 4 = 6 (hasnochildren, isfirst, islast)
 300  */
 301 function get_parent_level ($thread_new) {
 302     $parent = '';
 303     $child  = '';
 304     $cutoff = 0;
 305
 306     /*
 307      * loop through the threads and take unwanted characters out
 308      * of the thread string then chop it up
 309      */
 310     for ($i=0;$i<count($thread_new);$i++) {
 311         $thread_new[$i] = preg_replace("/\s\(/", "(", $thread_new[$i]);
 312         $thread_new[$i] = preg_replace("/(\d+)/", "$1|", $thread_new[$i]);
 313         $thread_new[$i] = preg_split("/\|/", $thread_new[$i], -1, PREG_SPLIT_NO_EMPTY);
 314     }
 315     $indent_array = array();
 316     if (!$thread_new) {
 317         $thread_new = array();
 318     }
 319     /* looping through the parts of one message thread */
 320
 321     for ($i=0;$i<count($thread_new);$i++) {
 322         /* first grab the parent, it does not indent */
 323
 324         if (isset($thread_new[$i][0])) {
 325             if (preg_match("/(\d+)/", $thread_new[$i][0], $regs)) {
 326                 $parent = $regs[1];
 327             }
 328         }
 329         $indent_array[$parent] = 0;
 330
 331         /*
 332          * now the children, checking each thread portion for
 333          * ),(, and space, adjusting the level and space values
 334          * to get the indent level
 335          */
 336         $level = 0;
 337         $spaces = array();
 338         $spaces_total = 0;
 339         $indent = 0;
 340         $fake = FALSE;
 341         for ($k=1,$iCnt=count($thread_new[$i])-1;$k<$iCnt;++$k) {
 342             $chars = count_chars($thread_new[$i][$k], 1);
 343             if (isset($chars['40'])) {       /* testing for ( */
 344                 $level += $chars['40'];
 345             }
 346             if (isset($chars['41'])) {      /* testing for ) */
 347                 $level -= $chars['41'];
 348                 $spaces[$level] = 0;
 349                 /* if we were faking lets stop, this portion
 350                  * of the thread is over
 351                  */
 352                 if ($level == $cutoff) {
 353                     $fake = FALSE;
 354                 }
 355             }
 356             if (isset($chars['32'])) {      /* testing for space */
 357                 if (!isset($spaces[$level])) {
 358                     $spaces[$level] = 0;
 359                 }
 360                 $spaces[$level] += $chars['32'];
 361             }
 362             for ($x=0;$x<=$level;$x++) {
 363                 if (isset($spaces[$x])) {
 364                     $spaces_total += $spaces[$x];
 365                 }
 366             }
 367             $indent = $level + $spaces_total;
 368             /* must have run into a message that broke the thread
 369              * so we are adjusting for that portion
 370              */
 371             if ($fake == TRUE) {
 372                 $indent = $indent +1;
 373             }
 374             if (preg_match("/(\d+)/", $thread_new[$i][$k], $regs)) {
 375                 $child = $regs[1];
 376             }
 377             /* the thread must be broken if $indent == 0
 378              * so indent the message once and start faking it
 379              */
 380             if ($indent == 0) {
 381                 $indent = 1;
 382                 $fake = TRUE;
 383                 $cutoff = $level;
 384             }
 385             /* dont need abs but if indent was negative
 386              * errors would occur
 387              */
 388             $indent_array[$child] = ($indent < 0) ? 0 : $indent;
 389             $spaces_total = 0;
 390         }
 391     }
 392     return $indent_array;
 393 }
 394
 395
 396 /**
 397 * Returns an array with each element as a string representing one
 398 * message-thread as returned by the IMAP server.
 399 */
 400 function get_thread_sort ($imap_stream) {
 401     global $thread_new, $sort_by_ref, $default_charset, $server_sort_array, $indent_array;
 402     if (sqsession_is_registered('thread_new')) {
 403         sqsession_unregister('thread_new');
 404     }
 405     if (sqsession_is_registered('indent_array')) {
 406         sqsession_unregister('indent_array');
 407     }
 408     if (sqsession_is_registered('server_sort_array')) {
 409         sqsession_unregister('server_sort_array');
 410     }
 411     $thread_temp = array ();
 412     if ($sort_by_ref == 1) {
 413         $sort_type = 'REFERENCES';
 414     } else {
 415         $sort_type = 'ORDEREDSUBJECT';
 416     }
 417     $query = "THREAD $sort_type ".strtoupper($default_charset)." ALL";
 418     $thread_test = sqimap_run_command ($imap_stream, $query, true, $response, $message, TRUE);
 419     if (isset($thread_test[0])) {
 420         for ($i=0,$iCnt=count($thread_test);$i<$iCnt;++$i) {
 421             if (preg_match("/^\* THREAD (.+)$/", $thread_test[$i], $regs)) {
 422                 $thread_list = trim($regs[1]);
 423                 break;
 424             }
 425         }
 426     } else {
 427         $thread_list = "";
 428     }
 429     if (!preg_match("/OK/", $response)) {
 430         $server_sort_array = 'no';
 431         return $server_sort_array;
 432     }
 433     if (isset($thread_list)) {
 434         $thread_temp = preg_split("//", $thread_list, -1, PREG_SPLIT_NO_EMPTY);
 435     }
 436
 437     $char_count = count($thread_temp);
 438     $counter = 0;
 439     $thread_new = array();
 440     $k = 0;
 441     $thread_new[0] = "";
 442     /*
 443      * parse the thread response into separate threads
 444      *
 445      * example:
 446      *         [0] => (540)
 447      *         [1] => (1386)
 448      *         [2] => (1599 759 959 37)
 449      *         [3] => (492 1787)
 450      *         [4] => ((933)(1891))
 451      *         [5] => (1030 (1497)(845)(1637))
 452      */
 453     for ($i=0,$iCnt=count($thread_temp);$i<$iCnt;$i++) {
 454         if ($thread_temp[$i] != ')' && $thread_temp[$i] != '(') {
 455                 $thread_new[$k] = $thread_new[$k] . $thread_temp[$i];
 456         } elseif ($thread_temp[$i] == '(') {
 457                 $thread_new[$k] .= $thread_temp[$i];
 458                 $counter++;
 459         } elseif ($thread_temp[$i] == ')') {
 460             if ($counter > 1) {
 461                 $thread_new[$k] .= $thread_temp[$i];
 462                 $counter = $counter - 1;
 463             } else {
 464                 $thread_new[$k] .= $thread_temp[$i];
 465                 $k++;
 466                 $thread_new[$k] = "";
 467                 $counter = $counter - 1;
 468             }
 469         }
 470     }
 471     sqsession_register($thread_new, 'thread_new');
 472     $thread_new = array_reverse($thread_new);
 473     /* place the threads after each other in one string */
 474     $thread_list = implode(" ", $thread_new);
 475     $thread_list = str_replace("(", " ", $thread_list);
 476     $thread_list = str_replace(")", " ", $thread_list);
 477     $thread_list = preg_split("/\s/", $thread_list, -1, PREG_SPLIT_NO_EMPTY);
 478     $server_sort_array = $thread_list;
 479
 480     $indent_array = get_parent_level ($thread_new);
 481     sqsession_register($indent_array, 'indent_array');
 482
 483     sqsession_register($server_sort_array, 'server_sort_array');
 484     return $thread_list;
 485 }
 486
 487
 488 function elapsedTime($start) {
 489     $stop = gettimeofday();
 490     $timepassed =  1000000 * ($stop['sec'] - $start['sec']) + $stop['usec'] - $start['usec'];
 491     return $timepassed;
 492 }
 493
 494 // only used in sqimap_get_small_header_list
 495 function parseString($read,&$i) {
 496     $char = $read{$i};
 497     $s = '';
 498     if ($char == '"') {
 499         $iPos = ++$i;
 500         while (true) {
 501             $iPos = strpos($read,'"',$iPos);
 502             if (!$iPos) break;
 503                 if ($iPos && $read{$iPos -1} != '\\') {
 504                     $s = substr($read,$i,($iPos-$i));
 505                     $i = $iPos;
 506                     break;
 507                 }
 508                 $iPos++;
 509                 if ($iPos > strlen($read)) {
 510                     break;
 511                 }
 512         }
 513     } else if ($char == '{') {
 514         $lit_cnt = '';
 515         ++$i;
 516         $iPos = strpos($read,'}',$i);
 517         if ($iPos) {
 518         $lit_cnt = substr($read, $i, $iPos - $i);
 519         $i += strlen($lit_cnt) + 3; /* skip } + \r + \n */
 520         /* Now read the literal */
 521         $s = ($lit_cnt ? substr($read,$i,$lit_cnt): '');
 522         $i += $lit_cnt;
 523         /* temp bugfix (SM 1.5 will have a working clean version)
 524             too much work to implement that version right now */
 525         --$i;
 526         } else { /* should never happen */
 527             $i += 3; /* } + \r + \n */
 528             $s = '';
 529         }
 530     } else {
 531         return false;
 532     }
 533     ++$i;
 534     return $s;
 535 }
 536
 537 // only used in sqimap_get_small_header_list
 538 function parseArray($read,&$i) {
 539     $i = strpos($read,'(',$i);
 540     $i_pos = strpos($read,')',$i);
 541     $s = substr($read,$i+1,$i_pos - $i -1);
 542     $a = explode(' ',$s);
 543     if ($i_pos) {
 544         $i = $i_pos+1;
 545         return $a;
 546     } else {
 547         return false;
 548     }
 549 }
 550
 551 function sqimap_get_small_header_list ($imap_stream, $msg_list, $show_num=false,
 552     $aHeaderFields = array('Date', 'To', 'Cc', 'From', 'Subject', 'X-Priority', 'Content-Type'),
 553     $aFetchItems = array('FLAGS', 'UID', 'RFC822.SIZE', 'INTERNALDATE')) {
 554
 555     global $squirrelmail_language, $color, $data_dir, $username, $imap_server_type;
 556     global $allow_server_sort;
 557
 558     $messages = array();
 559     $read_list = array();
 560
 561     /* Get the small headers for each message in $msg_list */
 562     if ($show_num != '999999' && $show_num != '*' ) {
 563         $msgs_str = sqimap_message_list_squisher($msg_list);
 564         /*
 565         * We need to return the data in the same order as the caller supplied
 566         * in $msg_list, but IMAP servers are free to return responses in
 567         * whatever order they wish... So we need to re-sort manually
 568         */
 569         for ($i = 0; $i < sizeof($msg_list); $i++) {
 570             $messages["$msg_list[$i]"] = array();
 571         }
 572     } else {
 573         $msgs_str = '1:*';
 574     }
 575
 576
 577
 578     /*
 579      * Create the query
 580      */
 581
 582     $internaldate = getPref($data_dir, $username, 'internal_date_sort');
 583     if (($i = array_search('INTERNALDATE',$aFetchItems,true)) !== false && $internaldate == false) {
 584         unset($aFetchItems[$i]);
 585     }
 586     $sFetchItems = '';
 587     $query = "FETCH $msgs_str (";
 588     if (count($aFetchItems)) {
 589         $sFetchItems = implode(' ',$aFetchItems);
 590     }
 591     if (count($aHeaderFields)) {
 592         $sHeaderFields = implode(' ',$aHeaderFields);
 593         $sFetchItems .= ' BODY.PEEK[HEADER.FIELDS ('.$sHeaderFields.')]';
 594     }
 595     $query .= trim($sFetchItems) . ')';
 596     $read_list = sqimap_run_command_list ($imap_stream, $query, true, $response, $message, TRUE);
 597     $i = 0;
 598
 599     foreach ($read_list as $r) {
 600         // use unset because we do isset below
 601         $read = implode('',$r);
 602
 603         /*
 604             * #id<space>FETCH<space>(
 605         */
 606
 607         /* extract the message id */
 608         $i_space = strpos($read,' ',2);
 609         $id = substr($read,2,$i_space-2);
 610         $fetch = substr($read,$i_space+1,5);
 611         if (!is_numeric($id) && $fetch !== 'FETCH') {
 612             set_up_language($squirrelmail_language);
 613             echo '<br><b><font color=$color[2]>' .
 614                 _("ERROR : Could not complete request.") .
 615                 '</b><br>' .
 616                 _("Unknown response from IMAP server: ") . ' 1.' .
 617                 htmlspecialchars($read) . "</font><br>\n";
 618                 break;
 619         }
 620         $i = strpos($read,'(',$i_space+5);
 621         $read = substr($read,$i+1);
 622         $i_len = strlen($read);
 623         $i = 0;
 624         while ($i < $i_len && $i !== false) {
 625             /* get argument */
 626             $read = trim(substr($read,$i));
 627             $i_len = strlen($read);
 628             $i = strpos($read,' ');
 629             $arg = substr($read,0,$i);
 630             ++$i;
 631             switch ($arg)
 632             {
 633             case 'UID':
 634                 $i_pos = strpos($read,' ',$i);
 635                 if (!$i_pos) {
 636                     $i_pos = strpos($read,')',$i);
 637                 }
 638                 if ($i_pos) {
 639                     $unique_id = substr($read,$i,$i_pos-$i);
 640                     $i = $i_pos+1;
 641                 } else {
 642                     break 3;
 643                 }
 644                 break;
 645             case 'FLAGS':
 646                 $flags = parseArray($read,$i);
 647                 if (!$flags) break 3;
 648                 $aFlags = array();
 649                 foreach ($flags as $flag) {
 650                     $flag = strtolower($flag);
 651                     $aFlags[$flag] = true;
 652                 }
 653                 $msg['FLAGS'] = $aFlags;
 654                 break;
 655             case 'RFC822.SIZE':
 656                 $i_pos = strpos($read,' ',$i);
 657                 if (!$i_pos) {
 658                     $i_pos = strpos($read,')',$i);
 659                 }
 660                 if ($i_pos) {
 661                     $msg['SIZE'] = substr($read,$i,$i_pos-$i);
 662                     $i = $i_pos+1;
 663                 } else {
 664                     break 3;
 665                 }
 666
 667                 break;
 668             case 'INTERNALDATE':
 669                 $msg['INTERNALDATE'] = parseString($read,$i);
 670                 break;
 671             case 'BODY.PEEK[HEADER.FIELDS':
 672             case 'BODY[HEADER.FIELDS':
 673                 $i = strpos($read,'{',$i);
 674                 $header = parseString($read,$i);
 675                 if ($header === false) break 2;
 676                 /* First we replace all \r\n by \n, and unfold the header */
 677                 $hdr = trim(str_replace(array("\r\n", "\n\t", "\n "),array("\n", ' ', ' '), $header));
 678                 /* Now we can make a new header array with */
 679                 /* each element representing a headerline  */
 680                 $hdr = explode("\n" , $hdr);
 681                 foreach ($hdr as $line) {
 682                     $pos = strpos($line, ':');
 683                     if ($pos > 0) {
 684                         $field = strtolower(substr($line, 0, $pos));
 685                         if (!strstr($field,' ')) { /* valid field */
 686                             $value = trim(substr($line, $pos+1));
 687                             switch($field)
 688                             {
 689                             case 'to': $msg['TO'] = $value; break;
 690                             case 'cc': $msg['CC'] = $value; break;
 691                             case 'from': $msg['FROM'] = $value; break;
 692                             case 'date':
 693                                 $msg['DATE'] = str_replace('  ', ' ', $value);
 694                                 break;
 695                             case 'x-priority': $msg['PRIORITY'] = $value; break;
 696                             case 'subject': $msg['SUBJECT'] = $value; break;
 697                             case 'content-type':
 698                                 $type = $value;
 699                                 if ($pos = strpos($type, ";")) {
 700                                     $type = substr($type, 0, $pos);
 701                                 }
 702                                 $type = explode("/", $type);
 703                                 if(!is_array($type)) {
 704                                     $msg['TYPE0'] = 'text';
 705                                     $msg['TYPE1'] = 'plain';
 706                                 }
 707                                 break;
 708                             default: break;
 709                             }
 710                         }
 711                     }
 712                 }
 713                 break;
 714             default:
 715                 ++$i;
 716                 break;
 717             }
 718         }
 719         $msgi ="$unique_id";
 720         $msg['ID'] = $unique_id;
 721
 722         $messages[$msgi] = $msg;
 723         ++$msgi;
 724     }
 725     array_reverse($messages);
 726     return $messages;
 727 }
 728
 729 /**
 730 * Returns a message array with all the information about a message.
 731 * See the documentation folder for more information about this array.
 732 */
 733 function sqimap_get_message ($imap_stream, $id, $mailbox) {
 734     // typecast to int to prohibit 1:* msgs sets
 735     $id = (int) $id;
 736     $flags = array();
 737     $read = sqimap_run_command ($imap_stream, "FETCH $id (FLAGS BODYSTRUCTURE)", true, $response, $message, TRUE);
 738     if ($read) {
 739         if (preg_match('/.+FLAGS\s\((.*)\)\s/AUi',$read[0],$regs)) {
 740             if (trim($regs[1])) {
 741                 $flags = preg_split('/ /', $regs[1],-1,'PREG_SPLIT_NI_EMPTY');
 742             }
 743         }
 744     } else {
 745         /* the message was not found, maybe the mailbox was modified? */
 746         global $sort, $startMessage, $color;
 747
 748         $errmessage = _("The server couldn't find the message you requested.") .
 749             '<p>'._("Most probably your message list was out of date and the message has been moved away or deleted (perhaps by another program accessing the same mailbox).");
 750         /* this will include a link back to the message list */
 751         error_message($errmessage, $mailbox, $sort, (int) $startMessage, $color);
 752         exit;
 753     }
 754     $bodystructure = implode('',$read);
 755     $msg =  mime_structure($bodystructure,$flags);
 756     $read = sqimap_run_command ($imap_stream, "FETCH $id BODY[HEADER]", true, $response, $message, TRUE);
 757     $rfc822_header = new Rfc822Header();
 758     $rfc822_header->parseHeader($read);
 759     $msg->rfc822_header = $rfc822_header;
 760     return $msg;
 761 }
 762
 763 ?>