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 function sqimap_messages_copy ($imap_stream, $start, $end, $mailbox) {
  16     $read = sqimap_run_command ($imap_stream, "COPY $start:$end \"$mailbox\"", true, $response, $message);
  17 }
  18
  19 /* Deletes specified messages and moves them to trash if possible */
  20 function sqimap_messages_delete ($imap_stream, $start, $end, $mailbox) {
  21     global $move_to_trash, $trash_folder, $auto_expunge;
  22
  23     if (($move_to_trash == true) && (sqimap_mailbox_exists($imap_stream, $trash_folder) && ($mailbox != $trash_folder))) {
  24         sqimap_messages_copy ($imap_stream, $start, $end, $trash_folder);
  25     }
  26     sqimap_messages_flag ($imap_stream, $start, $end, "Deleted");
  27 }
  28
  29 /* Sets the specified messages with specified flag */
  30 function sqimap_messages_flag ($imap_stream, $start, $end, $flag) {
  31     $read = sqimap_run_command ($imap_stream, "STORE $start:$end +FLAGS (\\$flag)", true, $response, $message);
  32 }
  33
  34 /* Remove specified flag from specified messages */
  35 function sqimap_messages_remove_flag ($imap_stream, $start, $end, $flag) {
  36     $read = sqimap_run_command ($imap_stream, "STORE $start:$end -FLAGS (\\$flag)", true, $response, $message);
  37 }
  38
  39 /* Returns some general header information -- FROM, DATE, and SUBJECT */
  40 class small_header {
  41     var $from = '', $subject = '', $date = '', $to = '',
  42         $priority = 0, $message_id = 0, $cc = '';
  43 }
  44
  45 function sqimap_get_small_header ($imap_stream, $id, $sent) {
  46     $res = sqimap_get_small_header_list($imap_stream, array($id), $sent);
  47     return $res[0];
  48 }
  49
  50 /*
  51  * Sort the message list and crunch to be as small as possible
  52  * (overflow could happen, so make it small if possible)
  53  */
  54 function sqimap_message_list_squisher($messages_array) {
  55     if( !is_array( $messages_array ) ) {
  56         return;
  57     }
  58     sort($messages_array, SORT_NUMERIC);
  59     $msgs_str = '';
  60     while ($messages_array) {
  61         $start = array_shift($messages_array);
  62         $end = $start;
  63         while (isset($messages_array[0]) && $messages_array[0] == $end + 1) {
  64             $end = array_shift($messages_array);
  65         }
  66         if ($msgs_str != '') {
  67             $msgs_str .= ',';
  68         }
  69         $msgs_str .= $start;
  70         if ($start != $end) {
  71             $msgs_str .= ':' . $end;
  72         }
  73     }
  74
  75     return $msgs_str;
  76 }
  77
  78 /* returns the references header lines */
  79 function get_reference_header ($imap_stream, $message) {
  80     $responses = array ();
  81     $sid = sqimap_session_id();
  82         $results = array();
  83         $references = "";
  84     $query = "$sid FETCH $message BODY[HEADER.FIELDS (References)]\r\n";
  85     fputs ($imap_stream, $query);
  86         $responses = sqimap_read_data_list($imap_stream, $sid, true, $responses, $message);
  87     if (!eregi("^\\* ([0-9]+) FETCH", $responses[0][0], $regs)) {
  88             $responses = array ();
  89         }
  90         return $responses;
  91 }
  92
  93
  94 /* get sort order from server and
  95  * return it as the $id array for
  96  * mailbox_display
  97  */
  98
  99 function sqimap_get_sort_order ($imap_stream, $sort) {
 100     global  $default_charset, $thread_sort_messages,
 101             $internal_date_sort, $server_sort_array,
 102             $sent_folder, $mailbox;
 103
 104     if (session_is_registered('server_sort_array')) {
 105         session_unregister('server_sort_array');
 106     }
 107     if ($sort == 6) {
 108         $qty = sqimap_get_num_messages ($imap_stream, $mailbox);
 109         $server_sort_array = range(1, $qty);
 110         session_register('server_sort_array');
 111         return $server_sort_array;
 112     }
 113     $sid = sqimap_session_id();
 114     $sort_on = array();
 115     $reverse = 0;
 116     $server_sort_array = array();
 117     $sort_test = array();
 118     $sort_query = '';
 119     $sort_on = array (0=> 'DATE',
 120                       1=> 'DATE',
 121                       2=> 'FROM',
 122                       3=> 'FROM',
 123                       4=> 'SUBJECT',
 124                       5=> 'SUBJECT');
 125     if ($internal_date_sort == true) {
 126         $sort_on[0] = 'ARRIVAL';
 127         $sort_on[1] = 'ARRIVAL';
 128     }
 129     if ($sent_folder == $mailbox) {
 130         $sort_on[2] = 'TO';
 131         $sort_on[3] = 'TO';
 132     }
 133     if (!empty($sort_on[$sort])) {
 134         $sort_query = "$sid SORT ($sort_on[$sort]) ".strtoupper($default_charset)." ALL\r\n";
 135         fputs($imap_stream, $sort_query);
 136         $sort_test = sqimap_read_data($imap_stream, $sid, false, $response, $message);
 137     }
 138     if (isset($sort_test[0])) {
 139         if (preg_match("/^\* SORT (.+)$/", $sort_test[0], $regs)) {
 140             $server_sort_array = preg_split("/ /", trim($regs[1]));
 141         }
 142     }
 143     if ($sort == 0 || $sort == 2 || $sort == 4) {
 144        $server_sort_array = array_reverse($server_sort_array);
 145     }
 146     if (!preg_match("/OK/", $response)) {
 147            $server_sort_array = 'no';
 148         }
 149     session_register('server_sort_array');
 150     return $server_sort_array;
 151 }
 152
 153 /* returns an indent array for printMessageinfo()
 154    this represents the amount of indent needed (value)
 155    for this message number (key)
 156 */
 157
 158 function get_parent_level ($imap_stream) {
 159     global $sort_by_ref, $default_charset, $thread_new;
 160         $parent = "";
 161         $child = "";
 162         $cutoff = 0;
 163
 164     /* loop through the threads and take unwanted characters out
 165        of the thread string then chop it up
 166      */
 167     for ($i=0;$i<count($thread_new);$i++) {
 168         $thread_new[$i] = preg_replace("/\s\(/", "(", $thread_new[$i]);
 169         $thread_new[$i] = preg_replace("/(\d+)/", "$1|", $thread_new[$i]);
 170         $thread_new[$i] = preg_split("/\|/", $thread_new[$i], -1, PREG_SPLIT_NO_EMPTY);
 171     }
 172     $indent_array = array();
 173         if (!$thread_new) {
 174             $thread_new = array();
 175         }
 176     /* looping through the parts of one message thread */
 177
 178     for ($i=0;$i<count($thread_new);$i++) {
 179     /* first grab the parent, it does not indent */
 180
 181         if (isset($thread_new[$i][0])) {
 182             if (preg_match("/(\d+)/", $thread_new[$i][0], $regs)) {
 183                 $parent = $regs[1];
 184             }
 185         }
 186         $indent_array[$parent] = 0;
 187
 188     /* now the children, checking each thread portion for
 189        ),(, and space, adjusting the level and space values
 190        to get the indent level
 191     */
 192         $level = 0;
 193         $spaces = array();
 194         $spaces_total = 0;
 195         $indent = 0;
 196         $fake = FALSE;
 197         for ($k=1;$k<(count($thread_new[$i]))-1;$k++) {
 198             $chars = count_chars($thread_new[$i][$k], 1);
 199             if (isset($chars['40'])) {       /* testing for ( */
 200                 $level = $level + $chars['40'];
 201             }
 202             if (isset($chars['41'])) {      /* testing for ) */
 203                 $level = $level - $chars['41'];
 204                 $spaces[$level] = 0;
 205                 /* if we were faking lets stop, this portion
 206                    of the thread is over
 207                 */
 208                 if ($level == $cutoff) {
 209                     $fake = FALSE;
 210                 }
 211             }
 212             if (isset($chars['32'])) {      /* testing for space */
 213                 if (!isset($spaces[$level])) {
 214                     $spaces[$level] = 0;
 215                 }
 216                 $spaces[$level] = $spaces[$level] + $chars['32'];
 217             }
 218             for ($x=0;$x<=$level;$x++) {
 219                 if (isset($spaces[$x])) {
 220                     $spaces_total = $spaces_total + $spaces[$x];
 221                 }
 222             }
 223             $indent = $level + $spaces_total;
 224             /* must have run into a message that broke the thread
 225                so we are adjusting for that portion
 226             */
 227             if ($fake == TRUE) {
 228                 $indent = $indent +1;
 229             }
 230             if (preg_match("/(\d+)/", $thread_new[$i][$k], $regs)) {
 231                 $child = $regs[1];
 232             }
 233             /* the thread must be broken if $indent == 0
 234                so indent the message once and start faking it
 235             */
 236             if ($indent == 0) {
 237                 $indent = 1;
 238                 $fake = TRUE;
 239                 $cutoff = $level;
 240             }
 241             /* dont need abs but if indent was negative
 242                errors would occur
 243             */
 244             $indent_array[$child] = abs($indent);
 245             $spaces_total = 0;
 246         }
 247     }
 248     return $indent_array;
 249 }
 250
 251
 252 /* returns an array with each element as a string
 253    representing one message thread as returned by
 254    the IMAP server
 255 */
 256
 257 function get_thread_sort ($imap_stream) {
 258     global $thread_new, $sort_by_ref, $default_charset, $server_sort_array;
 259     if (session_is_registered('thread_new')) {
 260         session_unregister('thread_new');
 261     }
 262     if (session_is_registered('server_sort_array')) {
 263         session_unregister('server_srot_array');
 264     }
 265     $sid = sqimap_session_id();
 266     $thread_temp = array ();
 267     if ($sort_by_ref == 1) {
 268         $sort_type = 'REFERENCES';
 269     }
 270     else {
 271         $sort_type = 'ORDEREDSUBJECT';
 272     }
 273     $thread_query = "$sid THREAD $sort_type ".strtoupper($default_charset)." ALL\r\n";
 274     fputs($imap_stream, $thread_query);
 275     $thread_test = sqimap_read_data($imap_stream, $sid, false, $response, $message);
 276     if (isset($thread_test[0])) {
 277         if (preg_match("/^\* THREAD (.+)$/", $thread_test[0], $regs)) {
 278             $thread_list = trim($regs[1]);
 279         }
 280     }
 281     else {
 282        $thread_list = "";
 283     }
 284     if (!preg_match("/OK/", $response)) {
 285            $server_sort_array = 'no';
 286            return $server_sort_array;
 287         }
 288     if (isset($thread_list)) {
 289         $thread_temp = preg_split("//", $thread_list, -1, PREG_SPLIT_NO_EMPTY);
 290     }
 291     $char_count = count($thread_temp);
 292     $counter = 0;
 293     $thread_new = array();
 294     $k = 0;
 295     $thread_new[0] = "";
 296     for ($i=0;$i<$char_count;$i++) {
 297             if ($thread_temp[$i] != ')' && $thread_temp[$i] != '(') {
 298                     $thread_new[$k] = $thread_new[$k] . $thread_temp[$i];
 299             }
 300             elseif ($thread_temp[$i] == '(') {
 301                     $thread_new[$k] .= $thread_temp[$i];
 302                     $counter++;
 303             }
 304             elseif ($thread_temp[$i] == ')') {
 305                     if ($counter > 1) {
 306                             $thread_new[$k] .= $thread_temp[$i];
 307                             $counter = $counter - 1;
 308                     }
 309                     else {
 310                             $thread_new[$k] .= $thread_temp[$i];
 311                             $k++;
 312                             $thread_new[$k] = "";
 313                             $counter = $counter - 1;
 314                     }
 315             }
 316     }
 317     session_register('thread_new');
 318     $thread_new = array_reverse($thread_new);
 319     $thread_list = implode(" ", $thread_new);
 320     $thread_list = str_replace("(", " ", $thread_list);
 321     $thread_list = str_replace(")", " ", $thread_list);
 322     $thread_list = preg_split("/\s/", $thread_list, -1, PREG_SPLIT_NO_EMPTY);
 323     $server_sort_array = $thread_list;
 324     session_register('server_sort_array');
 325     return $thread_list;
 326 }
 327
 328 function elapsedTime($start) {
 329  $stop = gettimeofday();
 330  $timepassed =  1000000 * ($stop['sec'] - $start['sec']) + $stop['usec'] - $start['usec'];
 331  return $timepassed;
 332 }
 333
 334
 335 function sqimap_get_small_header_list ($imap_stream, $msg_list, $issent) {
 336     global $squirrelmail_language, $color, $data_dir, $username;
 337     $start = gettimeofday();
 338     /* Get the small headers for each message in $msg_list */
 339     $sid = sqimap_session_id();
 340     $maxmsg = sizeof($msg_list);
 341     $msgs_str = sqimap_message_list_squisher($msg_list);
 342     $results = array();
 343     $read_list = array();
 344     /*
 345      * We need to return the data in the same order as the caller supplied
 346      * in $msg_list, but IMAP servers are free to return responses in
 347      * whatever order they wish... So we need to re-sort manually
 348      */
 349     for ($i = 0; $i < sizeof($msg_list); $i++) {
 350         $id2index[$msg_list[$i]] = $i;
 351     }
 352
 353     $internaldate = getPref($data_dir, $username, 'internal_date_sort');
 354     if ($internaldate) {
 355         $query = "$sid FETCH $msgs_str (FLAGS RFC822.SIZE INTERNALDATE BODY.PEEK[HEADER.FIELDS (Date To From Cc Subject X-Priority Content-Type)])\r\n";
 356     } else {
 357         $query = "$sid FETCH $msgs_str (FLAGS RFC822.SIZE BODY.PEEK[HEADER.FIELDS (Date To From Cc Subject X-Priority Content-Type)])\r\n";
 358     }
 359     fputs ($imap_stream, $query);
 360     $readin_list = sqimap_read_data_list($imap_stream, $sid, true, $response, $message);
 361
 362     foreach ($readin_list as $r) {
 363         if (!preg_match("/^\\*\s+([0-9]+)\s+FETCH/iAU",$r[0], $regs)) {
 364             set_up_language($squirrelmail_language);
 365             echo '<br><b><font color=$color[2]>' .
 366                   _("ERROR : Could not complete request.") .
 367                   '</b><br>' .
 368                   _("Unknown response from IMAP server: ") . ' 1.' .
 369                   $r[0] . "</font><br>\n";
 370
 371         } else  if (! isset($id2index[$regs[1]]) || !count($id2index[$regs[1]])) {
 372              set_up_language($squirrelmail_language);
 373              echo '<br><b><font color=$color[2]>' .
 374                   _("ERROR : Could not complete request.") .
 375                   '</b><br>' .
 376                   _("Unknown message number in reply from server: ") .
 377                   $regs[1] . "</font><br>\n";
 378         } else {
 379             $read_list[$id2index[$regs[1]]] = $r;
 380         }
 381     }
 382     arsort($read_list);
 383
 384     $patterns = array (
 385                         "/^To:(.*)/iA",
 386                         "/^From:(.*)/iA",
 387                         "/^X-Priority:(.*)/iA",
 388                         "/^Cc:(.*)/iA",
 389                         "/^Date:(.*)/iA",
 390                         "/^Subject:(.*)/iA",
 391                         "/^Content-Type:(.*)/iA"
 392                 );
 393     $regpattern = '';
 394
 395     for ($msgi = 0; $msgi < $maxmsg; $msgi++) {
 396         $subject = _("(no subject)");
 397         $from = _("Unknown Sender");
 398         $priority = 0;
 399         $messageid = "<>";
 400         $cc = "";
 401         $to = "";
 402         $date = "";
 403         $type[0] = "";
 404         $type[1] = "";
 405         $inrepto = "";
 406         $flag_seen = false;
 407         $flag_answered = false;
 408         $flag_deleted = false;
 409         $flag_flagged = false;
 410         $read = $read_list[$msgi];
 411         $prevline = false;
 412
 413         foreach ($read as $read_part) {
 414             //unfold multi-line headers
 415             while ($prevline && strspn($read_part, "\t ") > 0) {
 416                $read_part = substr($prevline, 0, -2) . ' ' . ltrim($read_part);
 417             }
 418             $prev_line = $read_part;
 419
 420             if ($read_part{0} == '*') {
 421                 if ($internaldate) {
 422                     if (preg_match ("/^.+INTERNALDATE\s\"(.+)\"\s.+/iUA",$read_part, $reg)) {
 423                         $date = $reg[1];
 424                     }
 425                 }
 426                 if (preg_match ("/^.+RFC822.SIZE\s+(\d+).+/iA",$read_part, $reg)) {
 427                     $size = $reg[1];
 428                 }
 429                 if (preg_match("/^.+FLAGS\s+\((.*)\).+/iUA", $read_part, $regs)) {
 430                     $flags = explode(' ',trim($regs[1]));
 431                     foreach ($flags as $flag) {
 432                         $flag = strtolower($flag);
 433                         if ($flag == '\\seen') {
 434                             $flag_seen = true;
 435                         } else if ($flag == '\\answered') {
 436                             $flag_answered = true;
 437                         } else if ($flag == '\\deleted') {
 438                             $flag_deleted = true;
 439                         } else if ($flag == '\\flagged') {
 440                             $flag_flagged = true;
 441                         }
 442                     }
 443                 }
 444             } else {
 445
 446                 $firstchar = $read_part{0};
 447                 if ($firstchar == 'T') {
 448                     $regpattern = $patterns[0];
 449                     $id = 1;
 450                 } else if ($firstchar == 'F') {
 451                     $regpattern = $patterns[1];
 452                     $id = 2;
 453                 } else if ($firstchar == 'X') {
 454                     $regpattern = $patterns[2];
 455                     $id = 3;
 456                 } else if ($firstchar == 'C') {
 457                     if (strtolower($read_part{1}) == 'c') {
 458                         $regpattern = $patterns[3];
 459                         $id = 4;
 460                     } else if (strtolower($read_part{1}) == 'o') {
 461                         $regpattern = $patterns[6];
 462                         $id = 7;
 463                     }
 464                 } else if ($firstchar == 'D') {
 465                     $regpattern = $patterns[4];
 466                     $id = 5;
 467                 } else if ($firstchar == 'S') {
 468                     $regpattern = $patterns[5];
 469                     $id = 6;
 470                 } else $regpattern = '';
 471
 472                 if ($regpattern) {
 473                     if (preg_match ($regpattern, $read_part, $regs)) {
 474                         switch ($id) {
 475                             case 1:
 476                               $to = $regs[1];
 477                               break;
 478                             case 2:
 479                               $from = $regs[1];
 480                               break;
 481                             case 3:
 482                               $priority = $regs[1];
 483                               break;
 484                             case 4:
 485                               $cc = $regs[1];
 486                               break;
 487                             case 5:
 488                               if (!$internaldate) {
 489                                 $date = $regs[1];
 490                               }
 491                               break;
 492                             case 6:
 493                               $subject = htmlspecialchars(trim($regs[1]));
 494                               if ($subject == "") {
 495                                 $subject = _("(no subject)");
 496                               }
 497                               break;
 498                             case 7:
 499                               $type = strtolower(trim($regs[1]));
 500                               if ($pos = strpos($type, ";")) {
 501                                  $type = substr($type, 0, $pos);
 502                               }
 503                               $type = explode("/", $type);
 504                               if (!isset($type[1])) {
 505                                   $type[1] = '';
 506                               }
 507                               break;
 508                             default:
 509                               break;
 510                         }
 511                     }
 512                 }
 513             }
 514
 515         }
 516         $header = new small_header;
 517         if ($issent) {
 518             $header->from = (trim($to) != '' ? $to : '(' ._("No To Address") . ')');
 519         } else {
 520             $header->from = $from;
 521         }
 522
 523         $header->date = $date;
 524         $header->subject = $subject;
 525         $header->to = $to;
 526         $header->priority = $priority;
 527         $header->message_id = $messageid;
 528         $header->cc = $cc;
 529         $header->size = $size;
 530         $header->type0 = $type[0];
 531         $header->type1 = $type[1];
 532         $header->flag_seen = $flag_seen;
 533         $header->flag_answered = $flag_answered;
 534         $header->flag_deleted = $flag_deleted;
 535         $header->flag_flagged = $flag_flagged;
 536         $header->inrepto = $inrepto;
 537         $result[] = $header;
 538     }
 539     echo 'processtime (us): ' . elapsedtime($start) .'<BR>';
 540     return $result;
 541 }
 542
 543
 544
 545
 546 /* Returns the flags for the specified messages */
 547 function sqimap_get_flags ($imap_stream, $i) {
 548     $read = sqimap_run_command ($imap_stream, "FETCH $i:$i FLAGS", true, $response, $message);
 549     if (ereg('FLAGS(.*)', $read[0], $regs)) {
 550         return explode(' ', trim(ereg_replace('[\\(\\)\\\\]', '', $regs[1])));
 551     }
 552     return array('None');
 553 }
 554
 555 function sqimap_get_flags_list ($imap_stream, $msg_list) {
 556     $msgs_str = sqimap_message_list_squisher($msg_list);
 557     for ($i = 0; $i < sizeof($msg_list); $i++) {
 558         $id2index[$msg_list[$i]] = $i;
 559     }
 560     $result_list = sqimap_run_command_list ($imap_stream, "FETCH $msgs_str FLAGS", true, $response, $message);
 561     $result_flags = array();
 562
 563     for ($i = 0; $i < sizeof($result_list); $i++) {
 564         if (eregi('^\* ([0-9]+).*FETCH.*FLAGS(.*)', $result_list[$i][0], $regs)
 565           && isset($id2index[$regs[1]]) && count($id2index[$regs[1]])) {
 566             $result_flags[$id2index[$regs[1]]] = explode(" ", trim(ereg_replace('[\\(\\)\\\\]', '', $regs[2])));
 567         } else {
 568             set_up_language($squirrelmail_language);
 569             echo "<br><b><font color=$color[2]>\n" .
 570                  _("ERROR : Could not complete request.") .
 571                  "</b><br>\n" .
 572                  _("Unknown response from IMAP server: ") .
 573                  $result_list[$i][0] . "</font><br>\n";
 574             exit;
 575         }
 576     }
 577     arsort($result_flags);
 578     return $result_flags;
 579 }
 580
 581 /*
 582  * Returns a message array with all the information about a message.
 583  * See the documentation folder for more information about this array.
 584  */
 585 function sqimap_get_message ($imap_stream, $id, $mailbox) {
 586     $header = sqimap_get_message_header($imap_stream, $id, $mailbox);
 587     return sqimap_get_message_body($imap_stream, $header);
 588 }
 589
 590 /* Wrapper function that reformats the header information. */
 591 function sqimap_get_message_header ($imap_stream, $id, $mailbox) {
 592     $read = sqimap_run_command ($imap_stream, "FETCH $id:$id BODY[HEADER]", true, $response, $message);
 593     $header = sqimap_get_header($imap_stream, $read);
 594     $header->id = $id;
 595     $header->mailbox = $mailbox;
 596     return $header;
 597 }
 598
 599 /* Wrapper function that reformats the entity header information. */
 600 function sqimap_get_ent_header ($imap_stream, $id, $mailbox, $ent) {
 601     $read = sqimap_run_command ($imap_stream, "FETCH $id:$id BODY[$ent.HEADER]", true, $response, $message);
 602     $header = sqimap_get_header($imap_stream, $read);
 603     $header->id = $id;
 604     $header->mailbox = $mailbox;
 605     return $header;
 606 }
 607
 608
 609 /* Wrapper function that returns entity headers for use by decodeMime */
 610 /*
 611 function sqimap_get_entity_header ($imap_stream, &$read, &$type0, &$type1, &$bound, &$encoding, &$charset, &$filename) {
 612     $header = sqimap_get_header($imap_stream, $read);
 613     $type0 = $header["TYPE0"];
 614     $type1 = $header["TYPE1"];
 615     $bound = $header["BOUNDARY"];
 616     $encoding = $header["ENCODING"];
 617     $charset = $header["CHARSET"];
 618     $filename = $header["FILENAME"];
 619 }
 620 */
 621 /* Queries the IMAP server and gets all header information. */
 622 function sqimap_get_header ($imap_stream, $read) {
 623     global $where, $what;
 624
 625     $hdr = new msg_header();
 626     $i = 0;
 627
 628     /* Set up some defaults */
 629     $hdr->type0 = "text";
 630     $hdr->type1 = "plain";
 631     $hdr->charset = "us-ascii";
 632
 633     while ($i < count($read)) {
 634         //unfold multi-line headers
 635         while ($i + 1 < count($read) && strspn($read[$i + 1], "\t ") > 0) {
 636             $read[$i + 1] = substr($read[$i], 0, -2) . ' ' . ltrim($read[$i + 1]);
 637             array_splice($read, $i, 1);
 638         }
 639
 640         if (substr($read[$i], 0, 17) == "MIME-Version: 1.0") {
 641             $hdr->mime = true;
 642             $i++;
 643         }
 644         /* ENCODING TYPE */
 645         else if (substr(strtolower($read[$i]), 0, 26) == "content-transfer-encoding:") {
 646             $hdr->encoding = strtolower(trim(substr($read[$i], 26)));
 647             $i++;
 648         }
 649         /* CONTENT-TYPE */
 650         else if (strtolower(substr($read[$i], 0, 13)) == "content-type:") {
 651             $cont = strtolower(trim(substr($read[$i], 13)));
 652             if (strpos($cont, ";")) {
 653                 $cont = substr($cont, 0, strpos($cont, ";"));
 654             }
 655
 656             if (strpos($cont, "/")) {
 657                 $hdr->type0 = substr($cont, 0, strpos($cont, "/"));
 658                 $hdr->type1 = substr($cont, strpos($cont, "/")+1);
 659             } else {
 660                 $hdr->type0 = $cont;
 661             }
 662
 663             $line = $read[$i];
 664             $i++;
 665             while ( (substr(substr($read[$i], 0, strpos($read[$i], " ")), -1) != ":") && (trim($read[$i]) != "") && (trim($read[$i]) != ")")) {
 666                 str_replace("\n", "", $line);
 667                 str_replace("\n", "", $read[$i]);
 668                 $line = "$line $read[$i]";
 669                 $i++;
 670             }
 671
 672             /* Detect the boundary of a multipart message */
 673             if (eregi('boundary="([^"]+)"', $line, $regs)) {
 674                 $hdr->boundary = $regs[1];
 675             }
 676
 677             /* Detect the charset */
 678             if (strpos(strtolower(trim($line)), "charset=")) {
 679                 $pos = strpos($line, "charset=") + 8;
 680                 $charset = trim($line);
 681                 if (strpos($line, ";", $pos) > 0) {
 682                     $charset = substr($charset, $pos, strpos($line, ";", $pos)-$pos);
 683                 } else {
 684                     $charset = substr($charset, $pos);
 685                 }
 686                 $charset = str_replace("\"", "", $charset);
 687                 $hdr->charset = $charset;
 688             } else {
 689                 $hdr->charset = "us-ascii";
 690             }
 691             /* Detect type in case of multipart/related */
 692             if (strpos(strtolower(trim($line)), "type=")) {
 693                 $pos = strpos($line, "type=") + 6;
 694                 $type = trim($line);
 695                 if (strpos($line, ";", $pos) > 0) {
 696                     $type = substr($type, $pos, strpos($line, ";", $pos)-$pos);
 697                 } else {
 698                     $type = substr($type, $pos);
 699                 }
 700                 $hdr->type = $type;
 701             }
 702         }
 703         else if (strtolower(substr($read[$i], 0, 20)) == "content-disposition:") {
 704             /* Add better content-disposition support */
 705             $line = $read[$i];
 706             $i++;
 707             while ( (substr(substr($read[$i], 0, strpos($read[$i], " ")), -1) != ":") && (trim($read[$i]) != "") && (trim($read[$i]) != ")")) {
 708                 str_replace("\n", "", $line);
 709                 str_replace("\n", "", $read[$i]);
 710                 $line = "$line $read[$i]";
 711                 $i++;
 712             }
 713
 714             /* Detects filename if any */
 715             if (strpos(strtolower(trim($line)), "filename=")) {
 716                 $pos = strpos($line, "filename=") + 9;
 717                 $name = trim($line);
 718                 if (strpos($line, " ", $pos) > 0) {
 719                     $name = substr($name, $pos, strpos($line, " ", $pos));
 720                 } else {
 721                     $name = substr($name, $pos);
 722                 }
 723                 $name = str_replace("\"", "", $name);
 724                 $hdr->filename = $name;
 725             }
 726         }
 727         /* REPLY-TO */
 728         else if (strtolower(substr($read[$i], 0, 9)) == "reply-to:") {
 729             $hdr->replyto = trim(substr($read[$i], 9, strlen($read[$i])));
 730             $i++;
 731         }
 732         /* FROM */
 733         else if (strtolower(substr($read[$i], 0, 5)) == "from:") {
 734             $hdr->from = trim(substr($read[$i], 5, strlen($read[$i]) - 6));
 735             if (! isset($hdr->replyto) || $hdr->replyto == "") {
 736                 $hdr->replyto = $hdr->from;
 737             }
 738             $i++;
 739         }
 740         /* DATE */
 741         else if (strtolower(substr($read[$i], 0, 5)) == "date:") {
 742             $d = substr($read[$i], 5);
 743             $d = trim($d);
 744             $d = strtr($d, array('  ' => ' '));
 745             $d = explode(' ', $d);
 746             $hdr->date = getTimeStamp($d);
 747             $i++;
 748         }
 749         /* SUBJECT */
 750         else if (strtolower(substr($read[$i], 0, 8)) == "subject:") {
 751             $hdr->subject = trim(substr($read[$i], 8, strlen($read[$i]) - 9));
 752             if (strlen(Chop($hdr->subject)) == 0) {
 753                $hdr->subject = _("(no subject)");
 754             }
 755             /*
 756             if ($where == 'SUBJECT') {
 757                  $hdr->subject = $what;
 758                  // $hdr->subject = eregi_replace($what, "<b>\\0</b>", $hdr->subject);
 759             }
 760             */
 761             $i++;
 762         }
 763         /* CC */
 764         else if (strtolower(substr($read[$i], 0, 3)) == "cc:") {
 765             $pos = 0;
 766             $hdr->cc[$pos] = trim(substr($read[$i], 4));
 767             $i++;
 768             while (((substr($read[$i], 0, 1) == " ") || (substr($read[$i], 0, 1) == "\t"))  && (trim($read[$i]) != "")){
 769                 $pos++;
 770                 $hdr->cc[$pos] = trim($read[$i]);
 771                 $i++;
 772             }
 773         }
 774         /* BCC */
 775         else if (strtolower(substr($read[$i], 0, 4)) == "bcc:") {
 776             $pos = 0;
 777             $hdr->bcc[$pos] = trim(substr($read[$i], 5));
 778             $i++;
 779             while (((substr($read[$i], 0, 1) == " ") || (substr($read[$i], 0, 1) == "\t"))  && (trim($read[$i]) != "")){
 780                 $pos++;
 781                 $hdr->bcc[$pos] = trim($read[$i]);
 782                 $i++;
 783             }
 784         }
 785         /* TO */
 786         else if (strtolower(substr($read[$i], 0, 3)) == "to:") {
 787             $pos = 0;
 788             $hdr->to[$pos] = trim(substr($read[$i], 4));
 789             $i++;
 790             while (((substr($read[$i], 0, 1) == " ") || (substr($read[$i], 0, 1) == "\t"))  && (trim($read[$i]) != "")){
 791                 $pos++;
 792                 $hdr->to[$pos] = trim($read[$i]);
 793                 $i++;
 794             }
 795         }
 796         /* MESSAGE ID */
 797         else if (strtolower(substr($read[$i], 0, 11)) == "message-id:") {
 798             $hdr->message_id = trim(substr($read[$i], 11));
 799             $i++;
 800         }
 801         /* ERROR CORRECTION */
 802         else if (substr($read[$i], 0, 1) == ")") {
 803             if (strlen(trim($hdr->subject)) == 0) {
 804                 $hdr->subject = _("(no subject)");
 805             }
 806             if (strlen(trim($hdr->from)) == 0) {
 807                 $hdr->from = _("(unknown sender)");
 808             }
 809             if (strlen(trim($hdr->date)) == 0) {
 810                 $hdr->date = time();
 811             }
 812             $i++;
 813         }
 814         /* X-PRIORITY */
 815         else if (strtolower(substr($read[$i], 0, 11)) == "x-priority:") {
 816             $hdr->priority = trim(substr($read[$i], 11));
 817             $i++;
 818         }
 819         else {
 820             $i++;
 821         }
 822      }
 823      return $hdr;
 824 }
 825
 826 /* Returns the body of a message. */
 827 function sqimap_get_message_body ($imap_stream, &$header) {
 828     $id = $header->id;
 829     return decodeMime($imap_stream, $header);
 830 }
 831
 832 ?>