functions/imap_messages.php

   1 <?php
   2
   3 /**
   4  * imap_messages.php
   5  *
   6  * Copyright (c) 1999-2002 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  *
  11  * $Id$
  12  */
  13
  14 /* Copies specified messages to specified folder */
  15 /* obsolete */
  16 function sqimap_messages_copy ($imap_stream, $start, $end, $mailbox) {
  17     global $uid_support;
  18     $read = sqimap_run_command ($imap_stream, "COPY $start:$end \"$mailbox\"", true, $response, $message, $uid_support);
  19 }
  20
  21 function sqimap_msgs_list_copy ($imap_stream, $id, $mailbox) {
  22     global $uid_support;
  23     $msgs_id = sqimap_message_list_squisher($id);
  24     $read = sqimap_run_command ($imap_stream, "COPY $msgs_id \"$mailbox\"", true, $response, $message, $uid_support);
  25     $read = sqimap_run_command ($imap_stream, "STORE $msgs_id +FLAGS (\\Deleted)", true, $response, $message, $uid_support);
  26 }
  27
  28
  29 /* Deletes specified messages and moves them to trash if possible */
  30 /* obsolete */
  31 function sqimap_messages_delete ($imap_stream, $start, $end, $mailbox) {
  32     global $move_to_trash, $trash_folder, $auto_expunge, $uid_support;
  33
  34     if (($move_to_trash == true) && (sqimap_mailbox_exists($imap_stream, $trash_folder) && ($mailbox != $trash_folder))) {
  35         sqimap_messages_copy ($imap_stream, $start, $end, $trash_folder);
  36     }
  37     sqimap_messages_flag ($imap_stream, $start, $end, "Deleted", true);
  38 }
  39
  40 function sqimap_msgs_list_delete ($imap_stream, $mailbox, $id) {
  41     global $move_to_trash, $trash_folder, $uid_support;
  42     $msgs_id = sqimap_message_list_squisher($id);
  43     if (($move_to_trash == true) && (sqimap_mailbox_exists($imap_stream, $trash_folder) && ($mailbox != $trash_folder))) {
  44         $read = sqimap_run_command ($imap_stream, "COPY $msgs_id \"$trash_folder\"", true, $response, $message, $uid_support);
  45     }
  46     $read = sqimap_run_command ($imap_stream, "STORE $msgs_id +FLAGS (\\Deleted)", true, $response, $message, $uid_support);
  47 }
  48
  49
  50 /* Sets the specified messages with specified flag */
  51 function sqimap_messages_flag ($imap_stream, $start, $end, $flag, $handle_errors) {
  52     global $uid_support;
  53     $read = sqimap_run_command ($imap_stream, "STORE $start:$end +FLAGS (\\$flag)", $handle_errors, $response, $message, $uid_support);
  54 }
  55
  56 /* Remove specified flag from specified messages */
  57 function sqimap_messages_remove_flag ($imap_stream, $start, $end, $flag, $handle_errors) {
  58     global $uid_support;
  59     $read = sqimap_run_command ($imap_stream, "STORE $start:$end -FLAGS (\\$flag)", $handle_errors, $response, $message, $uid_support);
  60 }
  61
  62 function sqimap_toggle_flag($imap_stream, $id, $flag, $set, $handle_errors) {
  63     global $uid_support;
  64     $msgs_id = sqimap_message_list_squisher($id);
  65     $set_string = ($set ? '+' : '-');
  66     $read = sqimap_run_command ($imap_stream, "STORE $msgs_id ".$set_string."FLAGS ($flag)", $handle_errors, $response, $message, $uid_support);
  67 }
  68
  69
  70 /* Returns some general header information -- FROM, DATE, and SUBJECT */
  71 class small_header {
  72     var $from = '', $subject = '', $date = '', $to = '',
  73         $priority = 0, $message_id = 0, $cc = '', $uid = '';
  74 }
  75
  76 function sqimap_get_small_header ($imap_stream, $id, $sent) {
  77     $res = sqimap_get_small_header_list($imap_stream, array($id), $sent);
  78     return $res[0];
  79 }
  80
  81 /*
  82  * Sort the message list and crunch to be as small as possible
  83  * (overflow could happen, so make it small if possible)
  84  */
  85 function sqimap_message_list_squisher($messages_array) {
  86     if( !is_array( $messages_array ) ) {
  87         return $messages_array;
  88     }
  89
  90     sort($messages_array, SORT_NUMERIC);
  91     $msgs_str = '';
  92     while ($messages_array) {
  93         $start = array_shift($messages_array);
  94         $end = $start;
  95         while (isset($messages_array[0]) && $messages_array[0] == $end + 1) {
  96             $end = array_shift($messages_array);
  97         }
  98         if ($msgs_str != '') {
  99             $msgs_str .= ',';
 100         }
 101         $msgs_str .= $start;
 102         if ($start != $end) {
 103             $msgs_str .= ':' . $end;
 104         }
 105     }
 106     return $msgs_str;
 107 }
 108
 109 /* returns the references header lines */
 110 function get_reference_header ($imap_stream, $message) {
 111     global $uid_support;
 112     $responses = array ();
 113     $sid = sqimap_session_id($uid_support);
 114     $results = array();
 115     $references = "";
 116     $query = "$sid FETCH $message BODY[HEADER.FIELDS (References)]\r\n";
 117     fputs ($imap_stream, $query);
 118     $responses = sqimap_read_data_list($imap_stream, $sid, true, $responses, $message);
 119     if (!eregi("^\\* ([0-9]+) FETCH", $responses[0][0], $regs)) {
 120         $responses = array ();
 121     }
 122     return $responses;
 123 }
 124
 125
 126 /* get sort order from server and
 127  * return it as the $id array for
 128  * mailbox_display
 129  */
 130
 131 function sqimap_get_sort_order ($imap_stream, $sort, $mbxresponse) {
 132     global  $default_charset, $thread_sort_messages,
 133             $internal_date_sort, $server_sort_array,
 134             $sent_folder, $mailbox, $uid_support;
 135
 136     if (sqsession_is_registered('server_sort_array')) {
 137         sqsession_unregister('server_sort_array');
 138     }
 139
 140     $sid = sqimap_session_id($uid_support);
 141     $sort_on = array();
 142     $reverse = 0;
 143     $server_sort_array = array();
 144     $sort_test = array();
 145     $sort_query = '';
 146
 147     if ($sort == 6) {
 148         if ($uid_support) {
 149             if (isset($mbxresponse['UIDNEXT']) && $mbxresponse['UIDNEXT']) {
 150                 $uidnext = $mbxresponse['UIDNEXT']-1;
 151             } else {
 152                 $uidnext = '*';
 153             }
 154             $uid_query = "$sid SEARCH UID 1:$uidnext\r\n";
 155             fputs($imap_stream, $uid_query);
 156             $uids = sqimap_read_data($imap_stream, $sid, true ,$response, $message);
 157             if (isset($uids[0])) {
 158                 if (preg_match("/^\* SEARCH (.+)$/", $uids[0], $regs)) {
 159                     $server_sort_array = preg_split("/ /", trim($regs[1]));
 160                 }
 161             }
 162             if (!preg_match("/OK/", $response)) {
 163                 $server_sort_array = 'no';
 164             }
 165         } else {
 166             $qty = $mbxresponse['EXISTS'];
 167             $server_sort_array = range(1, $qty);
 168         }
 169         sqsession_register($server_sort_array, 'server_sort_array');
 170         return $server_sort_array;
 171     }
 172
 173     $sort_on = array (0=> 'DATE',
 174                       1=> 'DATE',
 175                       2=> 'FROM',
 176                       3=> 'FROM',
 177                       4=> 'SUBJECT',
 178                       5=> 'SUBJECT');
 179     if ($internal_date_sort == true) {
 180         $sort_on[0] = 'ARRIVAL';
 181         $sort_on[1] = 'ARRIVAL';
 182     }
 183     if ($sent_folder == $mailbox) {
 184         $sort_on[2] = 'TO';
 185         $sort_on[3] = 'TO';
 186     }
 187     if (!empty($sort_on[$sort])) {
 188         $sort_query = "$sid SORT ($sort_on[$sort]) ".strtoupper($default_charset)." ALL\r\n";
 189         fputs($imap_stream, $sort_query);
 190         $sort_test = sqimap_read_data($imap_stream, $sid, true ,$response, $message);
 191     }
 192     if (isset($sort_test[0])) {
 193         if (preg_match("/^\* SORT (.+)$/", $sort_test[0], $regs)) {
 194             $server_sort_array = preg_split("/ /", trim($regs[1]));
 195         }
 196     }
 197     if ($sort == 0 || $sort == 2 || $sort == 4) {
 198        $server_sort_array = array_reverse($server_sort_array);
 199     }
 200     if (!preg_match("/OK/", $response)) {
 201        $server_sort_array = 'no';
 202     }
 203     sqsession_register($server_sort_array, 'server_sort_array');
 204     return $server_sort_array;
 205 }
 206
 207
 208 function sqimap_get_php_sort_order ($imap_stream, $mbxresponse) {
 209     global $uid_support;
 210
 211     if (sqsession_is_registered('php_sort_array')) {
 212         sqsession_unregister('php_sort_array');
 213     }
 214
 215     $sid = sqimap_session_id($uid_support);
 216     $php_sort_array = array();
 217
 218     if ($uid_support) {
 219         if (isset($mbxresponse['UIDNEXT']) && $mbxresponse['UIDNEXT']) {
 220             $uidnext = $mbxresponse['UIDNEXT']-1;
 221         } else {
 222             $uidnext = '*';
 223         }
 224         $uid_query = "$sid SEARCH UID 1:$uidnext\r\n";
 225         fputs($imap_stream, $uid_query);
 226         $uids = sqimap_read_data($imap_stream, $sid, true ,$response, $message);
 227         if (isset($uids[0])) {
 228             if (preg_match("/^\* SEARCH (.+)$/", $uids[0], $regs)) {
 229                 $php_sort_array = preg_split("/ /", trim($regs[1]));
 230             }
 231         }
 232         if (!preg_match("/OK/", $response)) {
 233             $php_sort_array = 'no';
 234         }
 235     } else {
 236        $qty = $mbxresponse['EXISTS'];
 237        $php_sort_array = range(1, $qty);
 238     }
 239     sqsession_register($php_sort_array, 'php_sort_array');
 240     return $php_sort_array;
 241 }
 242
 243
 244 /* returns an indent array for printMessageinfo()
 245    this represents the amount of indent needed (value)
 246    for this message number (key)
 247 */
 248
 249 function get_parent_level ($imap_stream) {
 250     global $sort_by_ref, $default_charset, $thread_new;
 251         $parent = "";
 252         $child = "";
 253         $cutoff = 0;
 254
 255     /* loop through the threads and take unwanted characters out
 256        of the thread string then chop it up
 257      */
 258     for ($i=0;$i<count($thread_new);$i++) {
 259         $thread_new[$i] = preg_replace("/\s\(/", "(", $thread_new[$i]);
 260         $thread_new[$i] = preg_replace("/(\d+)/", "$1|", $thread_new[$i]);
 261         $thread_new[$i] = preg_split("/\|/", $thread_new[$i], -1, PREG_SPLIT_NO_EMPTY);
 262     }
 263     $indent_array = array();
 264         if (!$thread_new) {
 265             $thread_new = array();
 266         }
 267     /* looping through the parts of one message thread */
 268
 269     for ($i=0;$i<count($thread_new);$i++) {
 270     /* first grab the parent, it does not indent */
 271
 272         if (isset($thread_new[$i][0])) {
 273             if (preg_match("/(\d+)/", $thread_new[$i][0], $regs)) {
 274                 $parent = $regs[1];
 275             }
 276         }
 277         $indent_array[$parent] = 0;
 278
 279     /* now the children, checking each thread portion for
 280        ),(, and space, adjusting the level and space values
 281        to get the indent level
 282     */
 283         $level = 0;
 284         $spaces = array();
 285         $spaces_total = 0;
 286         $indent = 0;
 287         $fake = FALSE;
 288         for ($k=1;$k<(count($thread_new[$i]))-1;$k++) {
 289             $chars = count_chars($thread_new[$i][$k], 1);
 290             if (isset($chars['40'])) {       /* testing for ( */
 291                 $level = $level + $chars['40'];
 292             }
 293             if (isset($chars['41'])) {      /* testing for ) */
 294                 $level = $level - $chars['41'];
 295                 $spaces[$level] = 0;
 296                 /* if we were faking lets stop, this portion
 297                    of the thread is over
 298                 */
 299                 if ($level == $cutoff) {
 300                     $fake = FALSE;
 301                 }
 302             }
 303             if (isset($chars['32'])) {      /* testing for space */
 304                 if (!isset($spaces[$level])) {
 305                     $spaces[$level] = 0;
 306                 }
 307                 $spaces[$level] = $spaces[$level] + $chars['32'];
 308             }
 309             for ($x=0;$x<=$level;$x++) {
 310                 if (isset($spaces[$x])) {
 311                     $spaces_total = $spaces_total + $spaces[$x];
 312                 }
 313             }
 314             $indent = $level + $spaces_total;
 315             /* must have run into a message that broke the thread
 316                so we are adjusting for that portion
 317             */
 318             if ($fake == TRUE) {
 319                 $indent = $indent +1;
 320             }
 321             if (preg_match("/(\d+)/", $thread_new[$i][$k], $regs)) {
 322                 $child = $regs[1];
 323             }
 324             /* the thread must be broken if $indent == 0
 325                so indent the message once and start faking it
 326             */
 327             if ($indent == 0) {
 328                 $indent = 1;
 329                 $fake = TRUE;
 330                 $cutoff = $level;
 331             }
 332             /* dont need abs but if indent was negative
 333                errors would occur
 334             */
 335             $indent_array[$child] = abs($indent);
 336             $spaces_total = 0;
 337         }
 338     }
 339     return $indent_array;
 340 }
 341
 342
 343 /* returns an array with each element as a string
 344    representing one message thread as returned by
 345    the IMAP server
 346 */
 347
 348 function get_thread_sort ($imap_stream) {
 349     global $thread_new, $sort_by_ref, $default_charset, $server_sort_array, $uid_support;
 350     if (sqsession_is_registered('thread_new')) {
 351         sqsession_unregister('thread_new');
 352     }
 353     if (sqsession_is_registered('server_sort_array')) {
 354         sqsession_unregister('server_sort_array');
 355     }
 356     $sid = sqimap_session_id($uid_support);
 357     $thread_temp = array ();
 358     if ($sort_by_ref == 1) {
 359         $sort_type = 'REFERENCES';
 360     }
 361     else {
 362         $sort_type = 'ORDEREDSUBJECT';
 363     }
 364     $thread_query = "$sid THREAD $sort_type ".strtoupper($default_charset)." ALL\r\n";
 365     fputs($imap_stream, $thread_query);
 366     $thread_test = sqimap_read_data($imap_stream, $sid, false, $response, $message);
 367     if (isset($thread_test[0])) {
 368         if (preg_match("/^\* THREAD (.+)$/", $thread_test[0], $regs)) {
 369             $thread_list = trim($regs[1]);
 370         }
 371     }
 372     else {
 373        $thread_list = "";
 374     }
 375     if (!preg_match("/OK/", $response)) {
 376        $server_sort_array = 'no';
 377        return $server_sort_array;
 378     }
 379     if (isset($thread_list)) {
 380         $thread_temp = preg_split("//", $thread_list, -1, PREG_SPLIT_NO_EMPTY);
 381     }
 382     $char_count = count($thread_temp);
 383     $counter = 0;
 384     $thread_new = array();
 385     $k = 0;
 386     $thread_new[0] = "";
 387     for ($i=0;$i<$char_count;$i++) {
 388             if ($thread_temp[$i] != ')' && $thread_temp[$i] != '(') {
 389                     $thread_new[$k] = $thread_new[$k] . $thread_temp[$i];
 390             }
 391             elseif ($thread_temp[$i] == '(') {
 392                     $thread_new[$k] .= $thread_temp[$i];
 393                     $counter++;
 394             }
 395             elseif ($thread_temp[$i] == ')') {
 396                     if ($counter > 1) {
 397                             $thread_new[$k] .= $thread_temp[$i];
 398                             $counter = $counter - 1;
 399                     }
 400                     else {
 401                             $thread_new[$k] .= $thread_temp[$i];
 402                             $k++;
 403                             $thread_new[$k] = "";
 404                             $counter = $counter - 1;
 405                     }
 406             }
 407     }
 408     sqsession_register($thread_new, 'thread_new');
 409     $thread_new = array_reverse($thread_new);
 410     $thread_list = implode(" ", $thread_new);
 411     $thread_list = str_replace("(", " ", $thread_list);
 412     $thread_list = str_replace(")", " ", $thread_list);
 413     $thread_list = preg_split("/\s/", $thread_list, -1, PREG_SPLIT_NO_EMPTY);
 414     $server_sort_array = $thread_list;
 415     sqsession_register($server_sort_array, 'server_sort_array');
 416     return $thread_list;
 417 }
 418
 419
 420 function elapsedTime($start) {
 421  $stop = gettimeofday();
 422  $timepassed =  1000000 * ($stop['sec'] - $start['sec']) + $stop['usec'] - $start['usec'];
 423  return $timepassed;
 424 }
 425
 426 function sqimap_get_small_header_list ($imap_stream, $msg_list) {
 427     global $squirrelmail_language, $color, $data_dir, $username, $imap_server_type;
 428     global $uid_support;
 429
 430     /* Get the small headers for each message in $msg_list */
 431     $sid = sqimap_session_id($uid_support);
 432
 433     $maxmsg = sizeof($msg_list);
 434     $msgs_str = sqimap_message_list_squisher($msg_list);
 435     $results = array();
 436     $read_list = array();
 437     /*
 438      * We need to return the data in the same order as the caller supplied
 439      * in $msg_list, but IMAP servers are free to return responses in
 440      * whatever order they wish... So we need to re-sort manually
 441      */
 442     for ($i = 0; $i < sizeof($msg_list); $i++) {
 443         $id2index[$msg_list[$i]] = $i;
 444     }
 445
 446     $internaldate = getPref($data_dir, $username, 'internal_date_sort');
 447     if ($internaldate) {
 448         $query = "$sid FETCH $msgs_str (FLAGS UID RFC822.SIZE INTERNALDATE BODY.PEEK[HEADER.FIELDS (Date To From Cc Subject X-Priority Content-Type)])\r\n";
 449     } else {
 450         $query = "$sid FETCH $msgs_str (FLAGS UID RFC822.SIZE BODY.PEEK[HEADER.FIELDS (Date To From Cc Subject X-Priority Content-Type)])\r\n";
 451     }
 452     fputs ($imap_stream, $query);
 453     $readin_list = sqimap_read_data_list($imap_stream, $sid, false, $response, $message);
 454     $i = 0;
 455     foreach ($readin_list as $r) {
 456         if (!$uid_support) {
 457             if (!preg_match("/^\\*\s+([0-9]+)\s+FETCH/iAU",$r[0], $regs)) {
 458                 set_up_language($squirrelmail_language);
 459                 echo '<br><b><font color=$color[2]>' .
 460                       _("ERROR : Could not complete request.") .
 461                       '</b><br>' .
 462                       _("Unknown response from IMAP server: ") . ' 1.' .
 463                       htmlspecialchars($r[0]) . "</font><br>\n";
 464             } else if (! isset($id2index[$regs[1]]) || !count($id2index[$regs[1]])) {
 465                 set_up_language($squirrelmail_language);
 466                 echo '<br><b><font color=$color[2]>' .
 467                       _("ERROR : Could not complete request.") .
 468                       '</b><br>' .
 469                       _("Unknown message number in reply from server: ") .
 470                       htmlspecialchars($regs[1]) . "</font><br>\n";
 471             } else {
 472                 $read_list[$id2index[$regs[1]]] = $r;
 473             }
 474         } else {
 475             if (!preg_match("/^\\*\s+([0-9]+)\s+FETCH.*UID\s+([0-9]+)\s+/iAU",$r[0], $regs)) {
 476                 set_up_language($squirrelmail_language);
 477                 echo '<br><b><font color=$color[2]>' .
 478                      _("ERROR : Could not complete request.") .
 479                      '</b><br>' .
 480                      _("Unknown response from IMAP server: ") . ' 1.' .
 481                      htmlspecialchars($r[0]) . "</font><br>\n";
 482             } else if (! isset($id2index[$regs[2]]) || !count($id2index[$regs[2]])) {
 483                 set_up_language($squirrelmail_language);
 484                 echo '<br><b><font color=$color[2]>' .
 485                       _("ERROR : Could not complete request.") .
 486                       '</b><br>' .
 487                       _("Unknown message number in reply from server: ") .
 488                       htmlspecialchars($regs[2]) . "</font><br>\n";
 489             } else {
 490                 $read_list[$id2index[$regs[2]]] = $r;
 491                 $unique_id = $regs[2];
 492             }
 493         }
 494     }
 495     arsort($read_list);
 496
 497     $patterns = array (
 498                     "/^To:(.*)\$/AUi",
 499                     "/^From:(.*)\$/AUi",
 500                     "/^X-Priority:(.*)\$/AUi",
 501                     "/^Cc:(.*)\$/AUi",
 502                     "/^Date:(.*)\$/AUi",
 503                     "/^Subject:(.*)\$/AUi",
 504                     "/^Content-Type:(.*)\$/AUi"
 505                 );
 506     $regpattern = '';
 507
 508     for ($msgi = 0; $msgi < $maxmsg; $msgi++) {
 509         $subject = _("(no subject)");
 510         $from = _("Unknown Sender");
 511         $priority = 0;
 512         $messageid = '<>';
 513         $cc = '';
 514         $to = '';
 515         $date = '';
 516         $type[0] = '';
 517         $type[1] = '';
 518         $inrepto = '';
 519         $flag_seen = false;
 520         $flag_answered = false;
 521         $flag_deleted = false;
 522         $flag_flagged = false;
 523         $read = $read_list[$msgi];
 524         $prevline = false;
 525
 526         foreach ($read as $read_part) {
 527             //unfold multi-line headers
 528             if ($prevline && strpos($read_part, "\t ") === true) {
 529                 $read_part = substr($prevline, 0, -2) . preg_replace('/(\t\s+)/',' ',$read_part);
 530             }
 531             $prevline = $read_part;
 532             if ($read_part{0} == '*') {
 533                 if ($internaldate) {
 534                     if (preg_match ("/^.+INTERNALDATE\s+\"(.+)\".+/iUA",$read_part, $reg)) {
 535                         $tmpdate = trim($reg[1]);
 536                         $tmpdate = str_replace('  ',' ',$tmpdate);
 537                         $tmpdate = explode(' ',$tmpdate);
 538                         $date = str_replace('-',' ',$tmpdate[0]) . " " .
 539                                 $tmpdate[1] . ' ' .
 540                                 $tmpdate[2];
 541                     }
 542                 }
 543                 if (preg_match ("/^.+RFC822.SIZE\s+(\d+).+/iA",$read_part, $reg)) {
 544                     $size = $reg[1];
 545                 }
 546                 if (preg_match("/^.+FLAGS\s+\((.*)\).+/iUA", $read_part, $regs)) {
 547                     $flags = explode(' ',trim($regs[1]));
 548                     foreach ($flags as $flag) {
 549                         $flag = strtolower($flag);
 550                         if ($flag == '\\seen') {
 551                             $flag_seen = true;
 552                         } else if ($flag == '\\answered') {
 553                             $flag_answered = true;
 554                         } else if ($flag == '\\deleted') {
 555                             $flag_deleted = true;
 556                         } else if ($flag == '\\flagged') {
 557                             $flag_flagged = true;
 558                         }
 559                     }
 560                 }
 561                 if (preg_match ("/^.+UID\s+(\d+).+/iA",$read_part, $reg)) {
 562                     $unique_id = $reg[1];
 563                 }
 564             } else {
 565                 $firstchar = strtoupper($read_part{0});
 566                 if ($firstchar == 'T') {
 567                     $regpattern = $patterns[0];
 568                     $id = 1;
 569                 } else if ($firstchar == 'F') {
 570                     $regpattern = $patterns[1];
 571                     $id = 2;
 572                 } else if ($firstchar == 'X') {
 573                     $regpattern = $patterns[2];
 574                     $id = 3;
 575                 } else if ($firstchar == 'C') {
 576                     if (strtolower($read_part{1}) == 'c') {
 577                         $regpattern = $patterns[3];
 578                         $id = 4;
 579                     } else if (strtolower($read_part{1}) == 'o') {
 580                         $regpattern = $patterns[6];
 581                         $id = 7;
 582                     }
 583                 } else if ($firstchar == 'D' && !$internaldate ) {
 584                     $regpattern = $patterns[4];
 585                     $id = 5;
 586                 } else if ($firstchar == 'S') {
 587                     $regpattern = $patterns[5];
 588                     $id = 6;
 589                 } else $regpattern = '';
 590
 591                 if ($regpattern) {
 592                     if (preg_match ($regpattern, $read_part, $regs)) {
 593                         switch ($id) {
 594                             case 1:
 595                                 $to = $regs[1];
 596                                 break;
 597                             case 2:
 598                                 $from = $regs[1];
 599                                 break;
 600                             case 3:
 601                                 $priority = $regs[1];
 602                                 break;
 603                             case 4:
 604                                 $cc = $regs[1];
 605                                 break;
 606                             case 5:
 607                                 $date = $regs[1];
 608                                 break;
 609                             case 6:
 610                                 $subject = htmlspecialchars(trim($regs[1]));
 611                                 if ($subject == "") {
 612                                     $subject = _("(no subject)");
 613                                 }
 614                                 break;
 615                             case 7:
 616                                 $type = strtolower(trim($regs[1]));
 617                                 if ($pos = strpos($type, ";")) {
 618                                     $type = substr($type, 0, $pos);
 619                                 }
 620                                 $type = explode("/", $type);
 621                                 if (!isset($type[1])) {
 622                                     $type[1] = '';
 623                                 }
 624                                 break;
 625                             default:
 626                                 break;
 627                         }
 628                     }
 629                 }
 630             }
 631
 632         }
 633
 634         $header = new small_header;
 635
 636         if ($uid_support) {
 637             $header->uid = $unique_id;
 638         } else {
 639             $header->uid = $msg_list[$msgi];
 640         }
 641         $header->date = $date;
 642         $header->subject = $subject;
 643         $header->to = $to;
 644         $header->from = $from;
 645         $header->priority = $priority;
 646         $header->message_id = $messageid;
 647         $header->cc = $cc;
 648         $header->size = $size;
 649         $header->type0 = $type[0];
 650         $header->type1 = $type[1];
 651         $header->flag_seen = $flag_seen;
 652         $header->flag_answered = $flag_answered;
 653         $header->flag_deleted = $flag_deleted;
 654         $header->flag_flagged = $flag_flagged;
 655         $header->inrepto = $inrepto;
 656         $result[] = $header;
 657     }
 658     return $result;
 659 }
 660
 661 function sqimap_get_headerfield($imap_stream, $field) {
 662     $sid = sqimap_session_id(false);
 663
 664     $results = array();
 665     $read_list = array();
 666
 667     $query = "$sid FETCH 1:* (UID BODY.PEEK[HEADER.FIELDS ($field)])\r\n";
 668     fputs ($imap_stream, $query);
 669     $readin_list = sqimap_read_data_list($imap_stream, $sid, false, $response, $message);
 670     $i = 0;
 671
 672     foreach ($readin_list as $r) {
 673         $r = implode('',$r);
 674         /* first we unfold the header */
 675         $r = str_replace(array("\r\n\t","\r\n\s"),array('',''),$r);
 676         /*
 677          * now we can make a new header array with each element representing
 678          * a headerline
 679          */
 680         $r = explode("\r\n" , $r);
 681         if (!$uid_support) {
 682             if (!preg_match("/^\\*\s+([0-9]+)\s+FETCH/iAU",$r[0], $regs)) {
 683                 set_up_language($squirrelmail_language);
 684                 echo '<br><b><font color=$color[2]>' .
 685                       _("ERROR : Could not complete request.") .
 686                       '</b><br>' .
 687                       _("Unknown response from IMAP server: ") . ' 1.' .
 688                       $r[0] . "</font><br>\n";
 689             } else {
 690                 $id = $regs[1];
 691             }
 692         } else {
 693             if (!preg_match("/^\\*\s+([0-9]+)\s+FETCH.*UID\s+([0-9]+)\s+/iAU",$r[0], $regs)) {
 694                 set_up_language($squirrelmail_language);
 695                 echo '<br><b><font color=$color[2]>' .
 696                      _("ERROR : Could not complete request.") .
 697                      '</b><br>' .
 698                      _("Unknown response from IMAP server: ") . ' 1.' .
 699                      $r[0] . "</font><br>\n";
 700             } else {
 701                 $id = $regs[2];
 702             }
 703         }
 704         $field = $r[1];
 705         $field = substr($field,strlen($field)+2);
 706         $result[] = array($id,$field);
 707     }
 708     return $result;
 709 }
 710
 711
 712
 713
 714
 715 /*
 716  * Returns a message array with all the information about a message.
 717  * See the documentation folder for more information about this array.
 718  */
 719 function sqimap_get_message ($imap_stream, $id, $mailbox) {
 720     global $uid_support;
 721
 722     $flags = array();
 723     $read = sqimap_run_command ($imap_stream, "FETCH $id (FLAGS BODYSTRUCTURE)", true, $response, $message, $uid_support);
 724     if ($read) {
 725     if (preg_match('/.+FLAGS\s\((.*)\)\s/AUi',$read[0],$regs)) {
 726        if (trim($regs[1])) {
 727           $flags = preg_split('/ /', $regs[1],-1,'PREG_SPLIT_NI_EMPTY');
 728        }
 729     }
 730     } else {
 731       echo "ERROR Yeah I know, not a very usefull errormessage (id = $id, mailbox = $mailbox sqimap_get_message)";
 732       exit;
 733     }
 734     $bodystructure = implode('',$read);
 735     $msg =  mime_structure($bodystructure,$flags);
 736     $read = sqimap_run_command ($imap_stream, "FETCH $id BODY[HEADER]", true, $response, $message, $uid_support);
 737     $rfc822_header = new Rfc822Header();
 738     $rfc822_header->parseHeader($read);
 739     $msg->rfc822_header = $rfc822_header;
 740     return $msg;
 741 }
 742
 743 /* Wrapper function that reformats the header information. */
 744 function sqimap_get_message_header ($imap_stream, $id, $mailbox) {
 745     global $uid_support;
 746     $read = sqimap_run_command ($imap_stream, "FETCH $id BODY[HEADER]", true, $response, $message, $uid_support);
 747     $header = sqimap_get_header($imap_stream, $read);
 748     $header->id = $id;
 749     $header->mailbox = $mailbox;
 750     return $header;
 751 }
 752
 753 /* Wrapper function that reformats the entity header information. */
 754 function sqimap_get_ent_header ($imap_stream, $id, $mailbox, $ent) {
 755     global $uid_support;
 756     $read = sqimap_run_command ($imap_stream, "FETCH $id BODY[$ent.HEADER]", true, $response, $message, $uid_support);
 757     $header = sqimap_get_header($imap_stream, $read);
 758     $header->id = $id;
 759     $header->mailbox = $mailbox;
 760     return $header;
 761 }
 762
 763
 764 /* Wrapper function that returns entity headers for use by decodeMime */
 765 /*
 766 function sqimap_get_entity_header ($imap_stream, &$read, &$type0, &$type1, &$bound, &$encoding, &$charset, &$filename) {
 767     $header = sqimap_get_header($imap_stream, $read);
 768     $type0 = $header["TYPE0"];
 769     $type1 = $header["TYPE1"];
 770     $bound = $header["BOUNDARY"];
 771     $encoding = $header["ENCODING"];
 772     $charset = $header["CHARSET"];
 773     $filename = $header["FILENAME"];
 774 }
 775
 776 /* function to get the mime headers */
 777 function sqimap_get_mime_ent_header ($imap_stream, $id, $mailbox, $ent) {
 778     global $uid_support;
 779     $read = sqimap_run_command ($imap_stream, "FETCH $id:$id BODY[$ent.MIME]", true, $response, $message, $uid_support);
 780     $header = sqimap_get_header($imap_stream, $read);
 781     $header->id = $id;
 782     $header->mailbox = $mailbox;
 783     return $header;
 784 }
 785
 786 /* Returns the body of a message. */
 787 function sqimap_get_message_body ($imap_stream, &$header) {
 788 //    return decodeMime($imap_stream, $header->id);
 789 }
 790
 791 ?>