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  23 * @deprecated This function is obsolete and should not be used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  57 * @deprecated This function is obsolete and should no longer be used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     $aUid = array();
 214     $walk = false;
 215     switch ($sSortField) {
 216       // natcasesort section
 217       case 'FROM':
 218       case 'TO':
 219       case 'CC':
 220         if(!$walk) {
 221             array_walk($msgs, create_function('&$v,&$k,$f',
 222                 '$v[$f] = (isset($v[$f])) ? $v[$f] : "";
 223                  $addr = parseAddress($v[$f]);
 224                  $v[$f] = ($addr[0][1]) ? decodeHeader($addr[0][1]):$addr[0][0];'),$sSortField);
 225             $walk = true;
 226         }
 227         // nobreak
 228       case 'SUBJECT':
 229         if(!$walk) {
 230             array_walk($msgs, create_function('&$v,&$k,$f',
 231                 '$v[$f] = (isset($v[$f])) ? $v[$f] : "";
 232                  $v[$f] = strtolower(decodeHeader(trim($v[$f])));
 233                  $v[$f] = (preg_match("/^(vedr|sv|re|aw|\[\w\]):\s*(.*)$/si", $v[$f], $matches)) ?
 234                                     $matches[2] : $v[$f];'),$sSortField);
 235             $walk = true;
 236         }
 237         foreach ($msgs as $item) {
 238             $aUid[$item['ID']] = $item[$sSortField];
 239         }
 240         natcasesort($aUid);
 241         $aUid = array_keys($aUid);
 242         if ($reverse) {
 243              array_reverse($aUid);
 244         }
 245         break;
 246         //  \natcasesort section
 247       // sort_numeric section
 248       case 'DATE':
 249       case 'INTERNALDATE':
 250         if(!$walk) {
 251             array_walk($msgs, create_function('&$v,$k,$f',
 252                 '$v[$f] = (isset($v[$f])) ? $v[$f] : "";
 253                  $v[$f] = getTimeStamp(explode(" ",$v[$f]));'),$sSortField);
 254             $walk = true;
 255         }
 256         // nobreak;
 257       case 'RFC822.SIZE':
 258         if(!$walk) {
 259             // redefine $sSortField to maintain the same namespace between
 260             // server-side sorting and squirrelmail sorting
 261             $sSortField = 'SIZE';
 262         }
 263         foreach ($msgs as $item) {
 264             $aUid[$item['ID']] = (isset($item[$sSortField])) ? $item[$sSortField] : 0;
 265         }
 266         if ($reverse) {
 267             arsort($aUid,SORT_NUMERIC);
 268         } else {
 269             asort($aUid, SORT_NUMERIC);
 270         }
 271         $aUid = array_keys($aUid);
 272         break;
 273         // \sort_numeric section
 274       case 'UID':
 275         $aUid = array_reverse($msgs);
 276         break;
 277     }
 278     return $aUid;
 279 }
 280
 281 /**
 282 * Returns an indent array for printMessageinfo()
 283 * This represents the amount of indent needed (value),
 284 * for this message number (key)
 285 */
 286
 287 /*
 288  * Notes for future work:
 289  * indent_array should contain: indent_level, parent and flags,
 290  * sibling notes ..
 291  * To achieve that we  need to define the following flags:
 292  * 0: hasnochildren
 293  * 1: haschildren
 294  * 2: is first
 295  * 4: is last
 296  * a node has sibling nodes if it's not the last node
 297  * a node has no sibling nodes if it's the last node
 298  * By using binary comparations we can store the flag in one var
 299  *
 300  * example:
 301  * -1      par = 0, level = 0, flag = 1 + 2 + 4 = 7 (haschildren,   isfirst, islast)
 302  *  \-2    par = 1, level = 1, flag = 0 + 2     = 2 (hasnochildren, isfirst)
 303  *  |-3    par = 1, level = 1, flag = 1 + 4     = 5 (haschildren,   islast)
 304  *   \-4   par = 3, level = 2, flag = 1 + 2 + 4 = 7 (haschildren,   isfirst, islast)
 305  *     \-5 par = 4, level = 3, flag = 0 + 2 + 4 = 6 (hasnochildren, isfirst, islast)
 306  */
 307 function get_parent_level ($thread_new) {
 308     $parent = '';
 309     $child  = '';
 310     $cutoff = 0;
 311
 312     /*
 313      * loop through the threads and take unwanted characters out
 314      * of the thread string then chop it up
 315      */
 316     for ($i=0;$i<count($thread_new);$i++) {
 317         $thread_new[$i] = preg_replace("/\s\(/", "(", $thread_new[$i]);
 318         $thread_new[$i] = preg_replace("/(\d+)/", "$1|", $thread_new[$i]);
 319         $thread_new[$i] = preg_split("/\|/", $thread_new[$i], -1, PREG_SPLIT_NO_EMPTY);
 320     }
 321     $indent_array = array();
 322     if (!$thread_new) {
 323         $thread_new = array();
 324     }
 325     /* looping through the parts of one message thread */
 326
 327     for ($i=0;$i<count($thread_new);$i++) {
 328         /* first grab the parent, it does not indent */
 329
 330         if (isset($thread_new[$i][0])) {
 331             if (preg_match("/(\d+)/", $thread_new[$i][0], $regs)) {
 332                 $parent = $regs[1];
 333             }
 334         }
 335         $indent_array[$parent] = 0;
 336
 337         /*
 338          * now the children, checking each thread portion for
 339          * ),(, and space, adjusting the level and space values
 340          * to get the indent level
 341          */
 342         $level = 0;
 343         $spaces = array();
 344         $spaces_total = 0;
 345         $indent = 0;
 346         $fake = FALSE;
 347         for ($k=1,$iCnt=count($thread_new[$i])-1;$k<$iCnt;++$k) {
 348             $chars = count_chars($thread_new[$i][$k], 1);
 349             if (isset($chars['40'])) {       /* testing for ( */
 350                 $level += $chars['40'];
 351             }
 352             if (isset($chars['41'])) {      /* testing for ) */
 353                 $level -= $chars['41'];
 354                 $spaces[$level] = 0;
 355                 /* if we were faking lets stop, this portion
 356                  * of the thread is over
 357                  */
 358                 if ($level == $cutoff) {
 359                     $fake = FALSE;
 360                 }
 361             }
 362             if (isset($chars['32'])) {      /* testing for space */
 363                 if (!isset($spaces[$level])) {
 364                     $spaces[$level] = 0;
 365                 }
 366                 $spaces[$level] += $chars['32'];
 367             }
 368             for ($x=0;$x<=$level;$x++) {
 369                 if (isset($spaces[$x])) {
 370                     $spaces_total += $spaces[$x];
 371                 }
 372             }
 373             $indent = $level + $spaces_total;
 374             /* must have run into a message that broke the thread
 375              * so we are adjusting for that portion
 376              */
 377             if ($fake == TRUE) {
 378                 $indent = $indent +1;
 379             }
 380             if (preg_match("/(\d+)/", $thread_new[$i][$k], $regs)) {
 381                 $child = $regs[1];
 382             }
 383             /* the thread must be broken if $indent == 0
 384              * so indent the message once and start faking it
 385              */
 386             if ($indent == 0) {
 387                 $indent = 1;
 388                 $fake = TRUE;
 389                 $cutoff = $level;
 390             }
 391             /* dont need abs but if indent was negative
 392              * errors would occur
 393              */
 394             $indent_array[$child] = ($indent < 0) ? 0 : $indent;
 395             $spaces_total = 0;
 396         }
 397     }
 398     return $indent_array;
 399 }
 400
 401
 402 /**
 403 * Returns an array with each element as a string representing one
 404 * message-thread as returned by the IMAP server.
 405 */
 406 function get_thread_sort ($imap_stream) {
 407     global $thread_new, $sort_by_ref, $default_charset, $server_sort_array, $indent_array;
 408     if (sqsession_is_registered('thread_new')) {
 409         sqsession_unregister('thread_new');
 410     }
 411     if (sqsession_is_registered('indent_array')) {
 412         sqsession_unregister('indent_array');
 413     }
 414     if (sqsession_is_registered('server_sort_array')) {
 415         sqsession_unregister('server_sort_array');
 416     }
 417     $thread_temp = array ();
 418     if ($sort_by_ref == 1) {
 419         $sort_type = 'REFERENCES';
 420     } else {
 421         $sort_type = 'ORDEREDSUBJECT';
 422     }
 423     $query = "THREAD $sort_type ".strtoupper($default_charset)." ALL";
 424     $thread_test = sqimap_run_command ($imap_stream, $query, true, $response, $message, TRUE);
 425     if (isset($thread_test[0])) {
 426         for ($i=0,$iCnt=count($thread_test);$i<$iCnt;++$i) {
 427             if (preg_match("/^\* THREAD (.+)$/", $thread_test[$i], $regs)) {
 428                 $thread_list = trim($regs[1]);
 429                 break;
 430             }
 431         }
 432     } else {
 433         $thread_list = "";
 434     }
 435     if (!preg_match("/OK/", $response)) {
 436         $server_sort_array = 'no';
 437         return $server_sort_array;
 438     }
 439     if (isset($thread_list)) {
 440         $thread_temp = preg_split("//", $thread_list, -1, PREG_SPLIT_NO_EMPTY);
 441     }
 442
 443     $char_count = count($thread_temp);
 444     $counter = 0;
 445     $thread_new = array();
 446     $k = 0;
 447     $thread_new[0] = "";
 448     /*
 449      * parse the thread response into separate threads
 450      *
 451      * example:
 452      *         [0] => (540)
 453      *         [1] => (1386)
 454      *         [2] => (1599 759 959 37)
 455      *         [3] => (492 1787)
 456      *         [4] => ((933)(1891))
 457      *         [5] => (1030 (1497)(845)(1637))
 458      */
 459     for ($i=0,$iCnt=count($thread_temp);$i<$iCnt;$i++) {
 460         if ($thread_temp[$i] != ')' && $thread_temp[$i] != '(') {
 461                 $thread_new[$k] = $thread_new[$k] . $thread_temp[$i];
 462         } elseif ($thread_temp[$i] == '(') {
 463                 $thread_new[$k] .= $thread_temp[$i];
 464                 $counter++;
 465         } elseif ($thread_temp[$i] == ')') {
 466             if ($counter > 1) {
 467                 $thread_new[$k] .= $thread_temp[$i];
 468                 $counter = $counter - 1;
 469             } else {
 470                 $thread_new[$k] .= $thread_temp[$i];
 471                 $k++;
 472                 $thread_new[$k] = "";
 473                 $counter = $counter - 1;
 474             }
 475         }
 476     }
 477     sqsession_register($thread_new, 'thread_new');
 478     $thread_new = array_reverse($thread_new);
 479     /* place the threads after each other in one string */
 480     $thread_list = implode(" ", $thread_new);
 481     $thread_list = str_replace("(", " ", $thread_list);
 482     $thread_list = str_replace(")", " ", $thread_list);
 483     $thread_list = preg_split("/\s/", $thread_list, -1, PREG_SPLIT_NO_EMPTY);
 484     $server_sort_array = $thread_list;
 485
 486     $indent_array = get_parent_level ($thread_new);
 487     sqsession_register($indent_array, 'indent_array');
 488
 489     sqsession_register($server_sort_array, 'server_sort_array');
 490     return $thread_list;
 491 }
 492
 493
 494 function elapsedTime($start) {
 495     $stop = gettimeofday();
 496     $timepassed =  1000000 * ($stop['sec'] - $start['sec']) + $stop['usec'] - $start['usec'];
 497     return $timepassed;
 498 }
 499
 500 // only used in sqimap_get_small_header_list
 501 function parseString($read,&$i) {
 502     $char = $read{$i};
 503     $s = '';
 504     if ($char == '"') {
 505         $iPos = ++$i;
 506         while (true) {
 507             $iPos = strpos($read,'"',$iPos);
 508             if (!$iPos) break;
 509                 if ($iPos && $read{$iPos -1} != '\\') {
 510                     $s = substr($read,$i,($iPos-$i));
 511                     $i = $iPos;
 512                     break;
 513                 }
 514                 $iPos++;
 515                 if ($iPos > strlen($read)) {
 516                     break;
 517                 }
 518         }
 519     } else if ($char == '{') {
 520         $lit_cnt = '';
 521         ++$i;
 522         $iPos = strpos($read,'}',$i);
 523         if ($iPos) {
 524         $lit_cnt = substr($read, $i, $iPos - $i);
 525         $i += strlen($lit_cnt) + 3; /* skip } + \r + \n */
 526         /* Now read the literal */
 527         $s = ($lit_cnt ? substr($read,$i,$lit_cnt): '');
 528         $i += $lit_cnt;
 529         /* temp bugfix (SM 1.5 will have a working clean version)
 530             too much work to implement that version right now */
 531         --$i;
 532         } else { /* should never happen */
 533             $i += 3; /* } + \r + \n */
 534             $s = '';
 535         }
 536     } else {
 537         return false;
 538     }
 539     ++$i;
 540     return $s;
 541 }
 542
 543 // only used in sqimap_get_small_header_list
 544 function parseArray($read,&$i) {
 545     $i = strpos($read,'(',$i);
 546     $i_pos = strpos($read,')',$i);
 547     $s = substr($read,$i+1,$i_pos - $i -1);
 548     $a = explode(' ',$s);
 549     if ($i_pos) {
 550         $i = $i_pos+1;
 551         return $a;
 552     } else {
 553         return false;
 554     }
 555 }
 556
 557 function sqimap_get_small_header_list ($imap_stream, $msg_list, $show_num=false,
 558     $aHeaderFields = array('Date', 'To', 'Cc', 'From', 'Subject', 'X-Priority', 'Content-Type'),
 559     $aFetchItems = array('FLAGS', 'UID', 'RFC822.SIZE', 'INTERNALDATE')) {
 560
 561     global $squirrelmail_language, $color, $data_dir, $username, $imap_server_type;
 562     global $allow_server_sort;
 563
 564     $messages = array();
 565     $read_list = array();
 566
 567     /* Get the small headers for each message in $msg_list */
 568     if ($show_num != '999999' && $show_num != '*' ) {
 569         $msgs_str = sqimap_message_list_squisher($msg_list);
 570         /*
 571         * We need to return the data in the same order as the caller supplied
 572         * in $msg_list, but IMAP servers are free to return responses in
 573         * whatever order they wish... So we need to re-sort manually
 574         */
 575         for ($i = 0; $i < sizeof($msg_list); $i++) {
 576             $messages["$msg_list[$i]"] = array();
 577         }
 578     } else {
 579         $msgs_str = '1:*';
 580     }
 581
 582
 583
 584     /*
 585      * Create the query
 586      */
 587
 588     $internaldate = getPref($data_dir, $username, 'internal_date_sort');
 589     if (($i = array_search('INTERNALDATE',$aFetchItems,true)) !== false && $internaldate == false) {
 590         unset($aFetchItems[$i]);
 591     }
 592     $sFetchItems = '';
 593     $query = "FETCH $msgs_str (";
 594     if (count($aFetchItems)) {
 595         $sFetchItems = implode(' ',$aFetchItems);
 596     }
 597     if (count($aHeaderFields)) {
 598         $sHeaderFields = implode(' ',$aHeaderFields);
 599         $sFetchItems .= ' BODY.PEEK[HEADER.FIELDS ('.$sHeaderFields.')]';
 600     }
 601     $query .= trim($sFetchItems) . ')';
 602     $read_list = sqimap_run_command_list ($imap_stream, $query, true, $response, $message, TRUE);
 603     $i = 0;
 604
 605     foreach ($read_list as $r) {
 606         // use unset because we do isset below
 607         $read = implode('',$r);
 608
 609         /*
 610             * #id<space>FETCH<space>(
 611         */
 612
 613         /* extract the message id */
 614         $i_space = strpos($read,' ',2);
 615         $id = substr($read,2,$i_space-2);
 616         $fetch = substr($read,$i_space+1,5);
 617         if (!is_numeric($id) && $fetch !== 'FETCH') {
 618             set_up_language($squirrelmail_language);
 619             echo '<br><b><font color=$color[2]>' .
 620                 _("ERROR : Could not complete request.") .
 621                 '</b><br>' .
 622                 _("Unknown response from IMAP server: ") . ' 1.' .
 623                 htmlspecialchars($read) . "</font><br>\n";
 624                 break;
 625         }
 626         $i = strpos($read,'(',$i_space+5);
 627         $read = substr($read,$i+1);
 628         $i_len = strlen($read);
 629         $i = 0;
 630         while ($i < $i_len && $i !== false) {
 631             /* get argument */
 632             $read = trim(substr($read,$i));
 633             $i_len = strlen($read);
 634             $i = strpos($read,' ');
 635             $arg = substr($read,0,$i);
 636             ++$i;
 637             switch ($arg)
 638             {
 639             case 'UID':
 640                 $i_pos = strpos($read,' ',$i);
 641                 if (!$i_pos) {
 642                     $i_pos = strpos($read,')',$i);
 643                 }
 644                 if ($i_pos) {
 645                     $unique_id = substr($read,$i,$i_pos-$i);
 646                     $i = $i_pos+1;
 647                 } else {
 648                     break 3;
 649                 }
 650                 break;
 651             case 'FLAGS':
 652                 $flags = parseArray($read,$i);
 653                 if (!$flags) break 3;
 654                 $aFlags = array();
 655                 foreach ($flags as $flag) {
 656                     $flag = strtolower($flag);
 657                     $aFlags[$flag] = true;
 658                 }
 659                 $msg['FLAGS'] = $aFlags;
 660                 break;
 661             case 'RFC822.SIZE':
 662                 $i_pos = strpos($read,' ',$i);
 663                 if (!$i_pos) {
 664                     $i_pos = strpos($read,')',$i);
 665                 }
 666                 if ($i_pos) {
 667                     $msg['SIZE'] = substr($read,$i,$i_pos-$i);
 668                     $i = $i_pos+1;
 669                 } else {
 670                     break 3;
 671                 }
 672
 673                 break;
 674             case 'INTERNALDATE':
 675                 $msg['INTERNALDATE'] = str_replace('  ', ' ',parseString($read,$i));
 676                 break;
 677             case 'BODY.PEEK[HEADER.FIELDS':
 678             case 'BODY[HEADER.FIELDS':
 679                 $i = strpos($read,'{',$i);
 680                 $header = parseString($read,$i);
 681                 if ($header === false) break 2;
 682                 /* First we replace all \r\n by \n, and unfold the header */
 683                 $hdr = trim(str_replace(array("\r\n", "\n\t", "\n "),array("\n", ' ', ' '), $header));
 684                 /* Now we can make a new header array with */
 685                 /* each element representing a headerline  */
 686                 $hdr = explode("\n" , $hdr);
 687                 foreach ($hdr as $line) {
 688                     $pos = strpos($line, ':');
 689                     if ($pos > 0) {
 690                         $field = strtolower(substr($line, 0, $pos));
 691                         if (!strstr($field,' ')) { /* valid field */
 692                             $value = trim(substr($line, $pos+1));
 693                             switch($field)
 694                             {
 695                             case 'to': $msg['TO'] = $value; break;
 696                             case 'cc': $msg['CC'] = $value; break;
 697                             case 'from': $msg['FROM'] = $value; break;
 698                             case 'date':
 699                                 $msg['DATE'] = str_replace('  ', ' ', $value);
 700                                 break;
 701                             case 'x-priority': $msg['PRIORITY'] = $value; break;
 702                             case 'subject': $msg['SUBJECT'] = $value; break;
 703                             case 'content-type':
 704                                 $type = $value;
 705                                 if ($pos = strpos($type, ";")) {
 706                                     $type = substr($type, 0, $pos);
 707                                 }
 708                                 $type = explode("/", $type);
 709                                 if(!is_array($type)) {
 710                                     $msg['TYPE0'] = 'text';
 711                                     $msg['TYPE1'] = 'plain';
 712                                 }
 713                                 break;
 714                             default: break;
 715                             }
 716                         }
 717                     }
 718                 }
 719                 break;
 720             default:
 721                 ++$i;
 722                 break;
 723             }
 724         }
 725         $msgi ="$unique_id";
 726         $msg['ID'] = $unique_id;
 727
 728         $messages[$msgi] = $msg;
 729         ++$msgi;
 730     }
 731     array_reverse($messages);
 732     return $messages;
 733 }
 734
 735 /**
 736 * Returns a message array with all the information about a message.
 737 * See the documentation folder for more information about this array.
 738 */
 739 function sqimap_get_message ($imap_stream, $id, $mailbox) {
 740     // typecast to int to prohibit 1:* msgs sets
 741     $id = (int) $id;
 742     $flags = array();
 743     $read = sqimap_run_command ($imap_stream, "FETCH $id (FLAGS BODYSTRUCTURE)", true, $response, $message, TRUE);
 744     if ($read) {
 745         if (preg_match('/.+FLAGS\s\((.*)\)\s/AUi',$read[0],$regs)) {
 746             if (trim($regs[1])) {
 747                 $flags = preg_split('/ /', $regs[1],-1,'PREG_SPLIT_NI_EMPTY');
 748             }
 749         }
 750     } else {
 751         /* the message was not found, maybe the mailbox was modified? */
 752         global $sort, $startMessage, $color;
 753
 754         $errmessage = _("The server couldn't find the message you requested.") .
 755             '<p>'._("Most probably your message list was out of date and the message has been moved away or deleted (perhaps by another program accessing the same mailbox).");
 756         /* this will include a link back to the message list */
 757         error_message($errmessage, $mailbox, $sort, (int) $startMessage, $color);
 758         exit;
 759     }
 760     $bodystructure = implode('',$read);
 761     $msg =  mime_structure($bodystructure,$flags);
 762     $read = sqimap_run_command ($imap_stream, "FETCH $id BODY[HEADER]", true, $response, $message, TRUE);
 763     $rfc822_header = new Rfc822Header();
 764     $rfc822_header->parseHeader($read);
 765     $msg->rfc822_header = $rfc822_header;
 766     return $msg;
 767 }
 768
 769 ?>