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  23 * @deprecated This function is obsolete and should not be used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  57 * @deprecated This function is obsolete and should no longer be used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