[squirrelmail.git] / functions / imap_general.php

<?php
   /**
    **  imap.php
    **
    **  This implements all functions that do general imap functions.
    **
    **  $Id$
    **/

   if (defined ('imap_general_php'))
      return;
   define ('imap_general_php', true);

global $imap_general_debug;
$imap_general_debug = false;

   /******************************************************************************
    **  Sets an unique session id in order to avoid simultanous sessions crash.
    ******************************************************************************/

   function sqimap_session_id() {
      return( substr( session_id(), -4 ) );
   }


   /******************************************************************************
    **  Reads the output from the IMAP stream.  If handle_errors is set to true,
    **  this will also handle all errors that are received.  If it is not set,
    **  the errors will be sent back through $response and $message
    ******************************************************************************/

   function sqimap_read_data_list ($imap_stream, $pre, $handle_errors,
                                   &$response, &$message) {
      global $color, $squirrelmail_language;
global $imap_general_debug;

      $read = '';
      $resultlist = array();
      
      $more_msgs = true;
      while ($more_msgs) {
         $data = array();
         $total_size = 0;
         while (strpos($read, "\n") === false) {
            $read .= fgets($imap_stream, 9096);
         }

         if (ereg("^\\* [0-9]+ FETCH.*\\{([0-9]+)\\}", $read, $regs)) {
            $size = $regs[1];
         } else if (ereg("^\\* [0-9]+ FETCH", $read, $regs)) {
            // Sizeless response, probably single-line
// For debugging purposes
if ($imap_general_debug) {
    echo "<small><tt><font color=\"#CC0000\">$read</font></tt></small><br>\n";
    flush();
}
            $size = 0;
            $data[] = $read;
            $read = fgets($imap_stream, 9096);
         } else {
            $size = 0;
         }
         while (1) {
            while (strpos($read, "\n") === false) {
               $read .= fgets($imap_stream, 9096);
            }
// For debugging purposes
if ($imap_general_debug) {
    echo "<small><tt><font color=\"#CC0000\">$read</font></tt></small><br>\n";
    flush();
}
            // If we know the size, no need to look at the end parameters
            if ($size > 0) {
               if ($total_size == $size) {
                  // We've reached the end of this 'message', switch to the next one.
                  $data[] = $read;
                  break;
               } else if ($total_size > $size) {
                  $difference = $total_size - $size;
                  $total_size = $total_size - strlen($read);
                  $data[] = substr ($read, 0, strlen($read)-$difference);
                  $read = substr ($read, strlen($read)-$difference, strlen($read));
                  break;
               } else {
                  $data[] = $read;
                  $read = fgets($imap_stream, 9096);
                  while (strpos($read, "\n") === false) {
                      $read .= fgets($imap_stream, 9096);
                  }
               }
               $total_size += strlen($read);
            } else {
               if (ereg("^$pre (OK|BAD|NO)(.*)", $read, $regs) ||
                   ereg("^\\* [0-9]+ FETCH.*", $read, $regs)) {
                  break;
               } else {
                  $data[] = $read;
                  $read = fgets ($imap_stream, 9096);
               }
            }
         }

         while (($more_msgs = !ereg("^$pre (OK|BAD|NO)(.*)$", $read, $regs)) &&
                !ereg("^\\* [0-9]+ FETCH.*", $read, $regs)) {
            $read = fgets($imap_stream, 9096);
         }
         $resultlist[] = $data;
      }
      $response = $regs[1];
      $message = trim($regs[2]);
      
if ($imap_general_debug) echo '--<br>';

      if ($handle_errors == false)
          return $resultlist;
     
      if ($response == 'NO') {
         // ignore this error from m$ exchange, it is not fatal (aka bug)
         if (strstr($message, 'command resulted in') === false) {
            set_up_language($squirrelmail_language);
            echo "<br><b><font color=$color[2]>\n";
            echo _("ERROR : Could not complete request.");
            echo "</b><br>\n";
            echo _("Reason Given: ");
            echo $message . "</font><br>\n";
            exit;
         }
      } else if ($response == 'BAD') {
         set_up_language($squirrelmail_language);
         echo "<br><b><font color=$color[2]>\n";
         echo _("ERROR : Bad or malformed request.");
         echo "</b><br>\n";
         echo _("Server responded: ");
         echo $message . "</font><br>\n";
         exit;
      }
      return $resultlist;
   }

   function sqimap_read_data ($imap_stream, $pre, $handle_errors, &$response, &$message) {
        $res = sqimap_read_data_list($imap_stream, $pre, $handle_errors, $response, $message);
        return $res[0];
   }

   /******************************************************************************
    **  Logs the user into the imap server.  If $hide is set, no error messages
    **  will be displayed.  This function returns the imap connection handle.
    ******************************************************************************/
   function sqimap_login ($username, $password, $imap_server_address, $imap_port, $hide) {
      global $color, $squirrelmail_language, $HTTP_ACCEPT_LANGUAGE, $onetimepad;

      $imap_stream = fsockopen ($imap_server_address, $imap_port,
         $error_number, $error_string, 15);
      $server_info = fgets ($imap_stream, 1024);

      // Decrypt the password
      $password = OneTimePadDecrypt($password, $onetimepad);

      /** Do some error correction **/
      if (!$imap_stream) {
         if (!$hide) {
            set_up_language($squirrelmail_language, true);
            printf (_("Error connecting to IMAP server: %s.")."<br>\r\n", $imap_server_address);
            echo "$error_number : $error_string<br>\r\n";
         }
         exit;
      }

      fputs ($imap_stream, sqimap_session_id() . ' LOGIN "' . quoteIMAP($username) .
         '" "' . quoteIMAP($password) . "\"\r\n");
      $read = sqimap_read_data ($imap_stream, sqimap_session_id(), false, $response, $message);

      /** If the connection was not successful, lets see why **/
      if ($response != "OK") {
         if (!$hide) {
            if ($response != 'NO') {
               // "BAD" and anything else gets reported here.
               set_up_language($squirrelmail_language, true);
               if ($response == 'BAD')
                   printf (_("Bad request: %s")."<br>\r\n", $message);
               else
                   printf (_("Unknown error: %s") . "<br>\n", $message);
               echo '<br>';
               echo _("Read data:") . "<br>\n";
               if (is_array($read))
               {
                       foreach ($read as $line)
                       {
                           echo htmlspecialchars($line) . "<br>\n";
                        }
               }
               exit;
            } else {
               // If the user does not log in with the correct
               // username and password it is not possible to get the
               // correct locale from the user's preferences.
               // Therefore, apply the same hack as on the login
               // screen.

               // $squirrelmail_language is set by a cookie when
               // the user selects language and logs out

               set_up_language($squirrelmail_language, true);

               ?>
                  <html>
                     <body bgcolor="ffffff">
                        <br>
                        <center>
                        <table width="70%" noborder bgcolor="ffffff" align="center">
                           <tr>
                              <td bgcolor="dcdcdc">
                                 <font color="cc0000">
                                 <center>
                                 <?php echo _("ERROR") ?>
                                 </center>
                                 </font>
                              </td>
                           </tr>
                           <tr>
                              <td>
                                 <center>
                                 <?php echo _("Unknown user or password incorrect.") ?><br>
                                 <a href="login.php" target="_top"><?php echo _("Click here to try again") ?></a>
                                 </center>
                              </td>
                           </tr>
                        </table>
                        </center>
                     </body>
                  </html>
               <?php
               session_destroy();
               exit;
            }
         } else {
            exit;
         }
      }

      return $imap_stream;
   }


   /******************************************************************************
    **  Simply logs out the imap session
    ******************************************************************************/
   function sqimap_logout ($imap_stream) {
      fputs ($imap_stream, sqimap_session_id() . " LOGOUT\r\n");
   }

   function sqimap_capability($imap_stream, $capability) {
        global $sqimap_capabilities;
global $imap_general_debug;

        if (!is_array($sqimap_capabilities)) {
            fputs ($imap_stream, sqimap_session_id() . " CAPABILITY\r\n");
            $read = sqimap_read_data($imap_stream, sqimap_session_id(), true, $a, $b);

            $c = explode(' ', $read[0]);
            for ($i=2; $i < count($c); $i++) {
                $cap_list = explode('=', $c[$i]);
                if (isset($cap_list[1]))
                    $sqimap_capabilities[$cap_list[0]] = $cap_list[1];
                else
                    $sqimap_capabilities[$cap_list[0]] = TRUE;
            }
        }
        if (! isset($sqimap_capabilities[$capability]))
        return false;
        return $sqimap_capabilities[$capability];
    }

   /******************************************************************************
    **  Returns the delimeter between mailboxes:  INBOX/Test, or INBOX.Test... 
    ******************************************************************************/
   function sqimap_get_delimiter ($imap_stream = false) {
global $imap_general_debug;
      global $sqimap_delimiter;
      global $optional_delimiter;

      /* Use configured delimiter if set */
      if((!empty($optional_delimiter)) && $optional_delimiter != "detect")
         return $optional_delimiter;

      /* Do some caching here */
      if (!$sqimap_delimiter) {
        if (sqimap_capability($imap_stream, "NAMESPACE")) {
            /* According to something that I can't find, this is supposed to work on all systems
            OS: This won't work in Courier IMAP.
            OS:  According to rfc2342 response from NAMESPACE command is:
            OS:  * NAMESPACE (PERSONAL NAMESPACES) (OTHER_USERS NAMESPACE) (SHARED NAMESPACES)
            OS:  We want to lookup all personal NAMESPACES...
            */
            fputs ($imap_stream, sqimap_session_id() . " NAMESPACE\r\n");
            $read = sqimap_read_data($imap_stream, sqimap_session_id(), true, $a, $b);
            if (eregi('\\* NAMESPACE +(\\( *\\(.+\\) *\\)|NIL) +(\\( *\\(.+\\) *\\)|NIL) +(\\( *\\(.+\\) *\\)|NIL)', $read[0], $data)) {
                if (eregi('^\\( *\\((.*)\\) *\\)', $data[1], $data2))
                    $pn = $data2[1];
                $pna = explode(')(', $pn);
                while (list($k, $v) = each($pna))
                {
                    $lst = explode('"', $v);
                    if (isset($lst[3])) {
                        $pn[$lst[1]] = $lst[3];
                    } else {
                        $pn[$lst[1]] = '';
                    }
                }
            }
            $sqimap_delimiter = $pn[0];
        } else {
            fputs ($imap_stream, ". LIST \"INBOX\" \"\"\r\n");
            $read = sqimap_read_data($imap_stream, '.', true, $a, $b);
            $quote_position = strpos ($read[0], '"');
            $sqimap_delimiter = substr ($read[0], $quote_position+1, 1);
        }
    }
    return $sqimap_delimiter;
   }


   /******************************************************************************
    **  Gets the number of messages in the current mailbox. 
    ******************************************************************************/
   function sqimap_get_num_messages ($imap_stream, $mailbox) {
      fputs ($imap_stream, sqimap_session_id() . " EXAMINE \"$mailbox\"\r\n");
      $read_ary = sqimap_read_data ($imap_stream, sqimap_session_id(), true, $result, $message);
      for ($i = 0; $i < count($read_ary); $i++) {
         if (ereg("[^ ]+ +([^ ]+) +EXISTS", $read_ary[$i], $regs)) {
            return $regs[1];
         }
      }
      return "BUG!  Couldn't get number of messages in $mailbox!";
   }

   
   /******************************************************************************
    **  Returns a displayable email address 
    ******************************************************************************/
   function sqimap_find_email ($string) {
      /** Luke Ehresman <lehresma@css.tayloru.edu>
       ** <lehresma@css.tayloru.edu>
       ** lehresma@css.tayloru.edu
       **
       ** What about
       **    lehresma@css.tayloru.edu (Luke Ehresman)
       **/

      if (ereg("<([^>]+)>", $string, $regs)) {
          $string = $regs[1];
      }
      return trim($string); 
   }

   
   /******************************************************************************
    **  Takes the From: field, and creates a displayable name.
    **    Luke Ehresman <lkehresman@yahoo.com>
    **           becomes:   Luke Ehresman
    **    <lkehresman@yahoo.com>
    **           becomes:   lkehresman@yahoo.com
    ******************************************************************************/
   function sqimap_find_displayable_name ($string) {
      $string = ' '.trim($string);
      $orig_string = $string;
      if (strpos($string, '<') && strpos($string, '>')) {
         if (strpos($string, '<') == 1) {
            $string = sqimap_find_email($string);
         } else {
            $string = trim($string);
            $string = substr($string, 0, strpos($string, '<'));
            $string = ereg_replace ('"', '', $string);   
         }   

         if (trim($string) == '') {
            $string = sqimap_find_email($orig_string);
         }
      }
      return $string; 
   }


   /******************************************************************************
    **  Returns the number of unseen messages in this folder 
    ******************************************************************************/
   function sqimap_unseen_messages ($imap_stream, $mailbox) {
      //fputs ($imap_stream, sqimap_session_id() . " SEARCH UNSEEN NOT DELETED\r\n");
      fputs ($imap_stream, sqimap_session_id() . " STATUS \"$mailbox\" (UNSEEN)\r\n");
      $read_ary = sqimap_read_data ($imap_stream, sqimap_session_id(), true, $result, $message);
      ereg("UNSEEN ([0-9]+)", $read_ary[0], $regs);
      return $regs[1];
   }
 
  
   /******************************************************************************
    **  Saves a message to a given folder -- used for saving sent messages
    ******************************************************************************/
   function sqimap_append ($imap_stream, $sent_folder, $length) {
      fputs ($imap_stream, sqimap_session_id() . " APPEND \"$sent_folder\" (\\Seen) \{$length}\r\n");
      $tmp = fgets ($imap_stream, 1024);
   } 

   function sqimap_append_done ($imap_stream) {
      fputs ($imap_stream, "\r\n");
      $tmp = fgets ($imap_stream, 1024);
   }
?>
Commit	Line	Data
59177427	1	<?php
052e0c26	2	/**
	3	** imap.php
	4	**
	5	** This implements all functions that do general imap functions.
245a6892	6	**
245a6892	7	** $Id$
052e0c26	8	**/
052e0c26	9
f435778e	10	if (defined ('imap_general_php'))
	11	return;
	12	define ('imap_general_php', true);
	13
f1e6f580	14	global $imap_general_debug;
f1e6f580	15	$imap_general_debug = false;
a3db804c	16
180aa6d7	17	/******************************************************************************
	18	** Sets an unique session id in order to avoid simultanous sessions crash.
	19	******************************************************************************/
	20
	21	function sqimap_session_id() {
	22	return( substr( session_id(), -4 ) );
	23	}
	24
	25
052e0c26	26	/******************************************************************************
	27	** Reads the output from the IMAP stream. If handle_errors is set to true,
	28	** this will also handle all errors that are received. If it is not set,
	29	** the errors will be sent back through $response and $message
	30	******************************************************************************/
a3432f47	31
91f68e94	32	function sqimap_read_data_list ($imap_stream, $pre, $handle_errors,
f1e6f580	33	&$response, &$message) {
	34	global $color, $squirrelmail_language;
	35	global $imap_general_debug;
245a6892	36
f1e6f580	37	$read = '';
91f68e94	38	$resultlist = array();
245a6892	39
91f68e94	40	$more_msgs = true;
	41	while ($more_msgs) {
	42	$data = array();
	43	$total_size = 0;
d9ca5b40	44	while (strpos($read, "\n") === false) {
	45	$read .= fgets($imap_stream, 9096);
	46	}
4f5c1bcb	47
91f68e94	48	if (ereg("^\\* [0-9]+ FETCH.*\\{([0-9]+)\\}", $read, $regs)) {
	49	$size = $regs[1];
	50	} else if (ereg("^\\* [0-9]+ FETCH", $read, $regs)) {
	51	// Sizeless response, probably single-line
f1e6f580	52	// For debugging purposes
	53	if ($imap_general_debug) {
	54	echo "<small><tt><font color=\"#CC0000\">$read</font></tt></small><br>\n";
	55	flush();
	56	}
91f68e94	57	$size = 0;
	58	$data[] = $read;
	59	$read = fgets($imap_stream, 9096);
d9ca5b40	60	} else {
91f68e94	61	$size = 0;
	62	}
	63	while (1) {
	64	while (strpos($read, "\n") === false) {
	65	$read .= fgets($imap_stream, 9096);
	66	}
f1e6f580	67	// For debugging purposes
	68	if ($imap_general_debug) {
	69	echo "<small><tt><font color=\"#CC0000\">$read</font></tt></small><br>\n";
	70	flush();
	71	}
91f68e94	72	// If we know the size, no need to look at the end parameters
	73	if ($size > 0) {
	74	if ($total_size == $size) {
	75	// We've reached the end of this 'message', switch to the next one.
	76	$data[] = $read;
37e24380	77	break;
91f68e94	78	} else if ($total_size > $size) {
	79	$difference = $total_size - $size;
	80	$total_size = $total_size - strlen($read);
	81	$data[] = substr ($read, 0, strlen($read)-$difference);
	82	$read = substr ($read, strlen($read)-$difference, strlen($read));
	83	break;
	84	} else {
	85	$data[] = $read;
	86	$read = fgets($imap_stream, 9096);
f1e6f580	87	while (strpos($read, "\n") === false) {
	88	$read .= fgets($imap_stream, 9096);
	89	}
91f68e94	90	}
91f68e94	91	$total_size += strlen($read);
4f5c1bcb	92	} else {
91f68e94	93	if (ereg("^$pre (OK\|BAD\|NO)(.*)", $read, $regs) \|\|
	94	ereg("^\\* [0-9]+ FETCH.*", $read, $regs)) {
	95	break;
	96	} else {
	97	$data[] = $read;
	98	$read = fgets ($imap_stream, 9096);
	99	}
4f5c1bcb	100	}
d9ca5b40	101	}
a3db804c	102
91f68e94	103	while (($more_msgs = !ereg("^$pre (OK\|BAD\|NO)(.*)$", $read, $regs)) &&
	104	!ereg("^\\* [0-9]+ FETCH.*", $read, $regs)) {
	105	$read = fgets($imap_stream, 9096);
	106	}
	107	$resultlist[] = $data;
	108	}
3d2504a1	109	$response = $regs[1];
	110	$message = trim($regs[2]);
	111
f1e6f580	112	if ($imap_general_debug) echo '--<br>';
052e0c26	113
f358f099	114	if ($handle_errors == false)
91f68e94	115	return $resultlist;
d9ca5b40	116
74424a43	117	if ($response == 'NO') {
f358f099	118	// ignore this error from m$ exchange, it is not fatal (aka bug)
8e8ebd27	119	if (strstr($message, 'command resulted in') === false) {
441f2d33	120	set_up_language($squirrelmail_language);
04632dbc	121	echo "<br><b><font color=$color[2]>\n";
f358f099	122	echo _("ERROR : Could not complete request.");
04632dbc	123	echo "</b><br>\n";
f358f099	124	echo _("Reason Given: ");
3d2504a1	125	echo $message . "</font><br>\n";
052e0c26	126	exit;
052e0c26	127	}
74424a43	128	} else if ($response == 'BAD') {
f358f099	129	set_up_language($squirrelmail_language);
	130	echo "<br><b><font color=$color[2]>\n";
	131	echo _("ERROR : Bad or malformed request.");
	132	echo "</b><br>\n";
	133	echo _("Server responded: ");
	134	echo $message . "</font><br>\n";
	135	exit;
052e0c26	136	}
91f68e94	137	return $resultlist;
	138	}
	139
	140	function sqimap_read_data ($imap_stream, $pre, $handle_errors, &$response, &$message) {
f1e6f580	141	$res = sqimap_read_data_list($imap_stream, $pre, $handle_errors, $response, $message);
f1e6f580	142	return $res[0];
052e0c26	143	}
f1e6f580	144
052e0c26	145	/******************************************************************************
	146	** Logs the user into the imap server. If $hide is set, no error messages
	147	** will be displayed. This function returns the imap connection handle.
	148	******************************************************************************/
	149	function sqimap_login ($username, $password, $imap_server_address, $imap_port, $hide) {
bc104ef3	150	global $color, $squirrelmail_language, $HTTP_ACCEPT_LANGUAGE, $onetimepad;
1b187352	151
342c46bd	152	$imap_stream = fsockopen ($imap_server_address, $imap_port,
090595e1	153	$error_number, $error_string, 15);
052e0c26	154	$server_info = fgets ($imap_stream, 1024);
f1e6f580	155
52eefafc	156	// Decrypt the password
bc104ef3	157	$password = OneTimePadDecrypt($password, $onetimepad);
52eefafc	158
052e0c26	159	/ Do some error correction /
	160	if (!$imap_stream) {
	161	if (!$hide) {
441f2d33	162	set_up_language($squirrelmail_language, true);
1b187352	163	printf (_("Error connecting to IMAP server: %s.")."<br>\r\n", $imap_server_address);
052e0c26	164	echo "$error_number : $error_string<br>\r\n";
	165	}
	166	exit;
	167	}
	168
f1e6f580	169	fputs ($imap_stream, sqimap_session_id() . ' LOGIN "' . quoteIMAP($username) .
704db5b2	170	'" "' . quoteIMAP($password) . "\"\r\n");
180aa6d7	171	$read = sqimap_read_data ($imap_stream, sqimap_session_id(), false, $response, $message);
052e0c26	172
052e0c26	173	/ If the connection was not successful, lets see why /
3d2504a1	174	if ($response != "OK") {
052e0c26	175	if (!$hide) {
74424a43	176	if ($response != 'NO') {
3d2504a1	177	// "BAD" and anything else gets reported here.
441f2d33	178	set_up_language($squirrelmail_language, true);
74424a43	179	if ($response == 'BAD')
3d2504a1	180	printf (_("Bad request: %s")."<br>\r\n", $message);
	181	else
	182	printf (_("Unknown error: %s") . "<br>\n", $message);
74424a43	183	echo '<br>';
3d2504a1	184	echo _("Read data:") . "<br>\n";
f1e6f580	185	if (is_array($read))
	186	{
	187	foreach ($read as $line)
	188	{
	189	echo htmlspecialchars($line) . "<br>\n";
	190	}
3d2504a1	191	}
052e0c26	192	exit;
165e24a7	193	} else {
1b187352	194	// If the user does not log in with the correct
	195	// username and password it is not possible to get the
	196	// correct locale from the user's preferences.
	197	// Therefore, apply the same hack as on the login
	198	// screen.
	199
	200	// $squirrelmail_language is set by a cookie when
	201	// the user selects language and logs out
f1e6f580	202
441f2d33	203	set_up_language($squirrelmail_language, true);
f1e6f580	204
052e0c26	205	?>
052e0c26	206	<html>
74424a43	207	<body bgcolor="ffffff">
052e0c26	208	<br>
052e0c26	209	<center>
74424a43	210	<table width="70%" noborder bgcolor="ffffff" align="center">
052e0c26	211	<tr>
74424a43	212	<td bgcolor="dcdcdc">
74424a43	213	<font color="cc0000">
052e0c26	214	<center>
59177427	215	<?php echo _("ERROR") ?>
052e0c26	216	</center>
	217	</font>
	218	</td>
	219	</tr>
	220	<tr>
	221	<td>
	222	<center>
59177427	223	<?php echo _("Unknown user or password incorrect.") ?><br>
5630c7ec	224	<a href="login.php" target="_top"><?php echo _("Click here to try again") ?></a>
052e0c26	225	</center>
	226	</td>
	227	</tr>
	228	</table>
	229	</center>
	230	</body>
	231	</html>
59177427	232	<?php
052e0c26	233	session_destroy();
052e0c26	234	exit;
052e0c26	235	}
	236	} else {
	237	exit;
	238	}
	239	}
	240
	241	return $imap_stream;
	242	}
	243
	244
	245
	246
	247	/******************************************************************************
	248	** Simply logs out the imap session
	249	******************************************************************************/
	250	function sqimap_logout ($imap_stream) {
180aa6d7	251	fputs ($imap_stream, sqimap_session_id() . " LOGOUT\r\n");
052e0c26	252	}
052e0c26	253
f435778e	254	function sqimap_capability($imap_stream, $capability) {
f1e6f580	255	global $sqimap_capabilities;
	256	global $imap_general_debug;
	257
	258	if (!is_array($sqimap_capabilities)) {
	259	fputs ($imap_stream, sqimap_session_id() . " CAPABILITY\r\n");
	260	$read = sqimap_read_data($imap_stream, sqimap_session_id(), true, $a, $b);
	261
	262	$c = explode(' ', $read[0]);
	263	for ($i=2; $i < count($c); $i++) {
	264	$cap_list = explode('=', $c[$i]);
	265	if (isset($cap_list[1]))
	266	$sqimap_capabilities[$cap_list[0]] = $cap_list[1];
	267	else
	268	$sqimap_capabilities[$cap_list[0]] = TRUE;
	269	}
	270	}
	271	if (! isset($sqimap_capabilities[$capability]))
	272	return false;
	273	return $sqimap_capabilities[$capability];
	274	}
052e0c26	275
	276	/******************************************************************************
	277	** Returns the delimeter between mailboxes: INBOX/Test, or INBOX.Test...
	278	******************************************************************************/
f435778e	279	function sqimap_get_delimiter ($imap_stream = false) {
f1e6f580	280	global $imap_general_debug;
f435778e	281	global $sqimap_delimiter;
f435778e	282	global $optional_delimiter;
f6941f00	283
f435778e	284	/* Use configured delimiter if set */
	285	if((!empty($optional_delimiter)) && $optional_delimiter != "detect")
	286	return $optional_delimiter;
a3db804c	287
f435778e	288	/* Do some caching here */
f435778e	289	if (!$sqimap_delimiter) {
f1e6f580	290	if (sqimap_capability($imap_stream, "NAMESPACE")) {
	291	/* According to something that I can't find, this is supposed to work on all systems
	292	OS: This won't work in Courier IMAP.
	293	OS: According to rfc2342 response from NAMESPACE command is:
	294	OS: * NAMESPACE (PERSONAL NAMESPACES) (OTHER_USERS NAMESPACE) (SHARED NAMESPACES)
	295	OS: We want to lookup all personal NAMESPACES...
	296	*/
	297	fputs ($imap_stream, sqimap_session_id() . " NAMESPACE\r\n");
	298	$read = sqimap_read_data($imap_stream, sqimap_session_id(), true, $a, $b);
	299	if (eregi('\\* NAMESPACE +(\\( \\(.+\\) \\)\|NIL) +(\\( \\(.+\\) \\)\|NIL) +(\\( \\(.+\\) \\)\|NIL)', $read[0], $data)) {
	300	if (eregi('^\\( \\((.)\\) *\\)', $data[1], $data2))
	301	$pn = $data2[1];
	302	$pna = explode(')(', $pn);
	303	while (list($k, $v) = each($pna))
	304	{
862ff2d3	305	$lst = explode('"', $v);
	306	if (isset($lst[3])) {
	307	$pn[$lst[1]] = $lst[3];
	308	} else {
74424a43	309	$pn[$lst[1]] = '';
862ff2d3	310	}
f1e6f580	311	}
	312	}
	313	$sqimap_delimiter = $pn[0];
	314	} else {
	315	fputs ($imap_stream, ". LIST \"INBOX\" \"\"\r\n");
	316	$read = sqimap_read_data($imap_stream, '.', true, $a, $b);
	317	$quote_position = strpos ($read[0], '"');
	318	$sqimap_delimiter = substr ($read[0], $quote_position+1, 1);
	319	}
	320	}
	321	return $sqimap_delimiter;
f435778e	322	}
052e0c26	323
	324
	325	/******************************************************************************
	326	** Gets the number of messages in the current mailbox.
	327	******************************************************************************/
	328	function sqimap_get_num_messages ($imap_stream, $mailbox) {
180aa6d7	329	fputs ($imap_stream, sqimap_session_id() . " EXAMINE \"$mailbox\"\r\n");
180aa6d7	330	$read_ary = sqimap_read_data ($imap_stream, sqimap_session_id(), true, $result, $message);
052e0c26	331	for ($i = 0; $i < count($read_ary); $i++) {
441f2d33	332	if (ereg("[^ ]+ +([^ ]+) +EXISTS", $read_ary[$i], $regs)) {
f1e6f580	333	return $regs[1];
052e0c26	334	}
052e0c26	335	}
441f2d33	336	return "BUG! Couldn't get number of messages in $mailbox!";
052e0c26	337	}
	338
	339
	340	/******************************************************************************
	341	** Returns a displayable email address
	342	******************************************************************************/
	343	function sqimap_find_email ($string) {
	344	/** Luke Ehresman <lehresma@css.tayloru.edu>
	345	** <lehresma@css.tayloru.edu>
	346	** lehresma@css.tayloru.edu
1d2ce1c3	347	**
	348	** What about
	349	** lehresma@css.tayloru.edu (Luke Ehresman)
052e0c26	350	**/
052e0c26	351
441f2d33	352	if (ereg("<([^>]+)>", $string, $regs)) {
441f2d33	353	$string = $regs[1];
052e0c26	354	}
	355	return trim($string);
	356	}
	357
	358
	359	/******************************************************************************
	360	** Takes the From: field, and creates a displayable name.
	361	** Luke Ehresman <lkehresman@yahoo.com>
	362	** becomes: Luke Ehresman
	363	** <lkehresman@yahoo.com>
	364	** becomes: lkehresman@yahoo.com
	365	******************************************************************************/
	366	function sqimap_find_displayable_name ($string) {
74424a43	367	$string = ' '.trim($string);
1d2ce1c3	368	$orig_string = $string;
74424a43	369	if (strpos($string, '<') && strpos($string, '>')) {
74424a43	370	if (strpos($string, '<') == 1) {
1d2ce1c3	371	$string = sqimap_find_email($string);
	372	} else {
	373	$string = trim($string);
74424a43	374	$string = substr($string, 0, strpos($string, '<'));
74424a43	375	$string = ereg_replace ('"', '', $string);
1d2ce1c3	376	}
1d2ce1c3	377
74424a43	378	if (trim($string) == '') {
1d2ce1c3	379	$string = sqimap_find_email($orig_string);
	380	}
	381	}
	382	return $string;
052e0c26	383	}
	384
	385
052e0c26	386	/******************************************************************************
	387	** Returns the number of unseen messages in this folder
	388	******************************************************************************/
4d2c01e3	389	function sqimap_unseen_messages ($imap_stream, $mailbox) {
180aa6d7	390	//fputs ($imap_stream, sqimap_session_id() . " SEARCH UNSEEN NOT DELETED\r\n");
	391	fputs ($imap_stream, sqimap_session_id() . " STATUS \"$mailbox\" (UNSEEN)\r\n");
	392	$read_ary = sqimap_read_data ($imap_stream, sqimap_session_id(), true, $result, $message);
441f2d33	393	ereg("UNSEEN ([0-9]+)", $read_ary[0], $regs);
441f2d33	394	return $regs[1];
052e0c26	395	}
	396
	397
	398	/******************************************************************************
	399	** Saves a message to a given folder -- used for saving sent messages
	400	******************************************************************************/
	401	function sqimap_append ($imap_stream, $sent_folder, $length) {
180aa6d7	402	fputs ($imap_stream, sqimap_session_id() . " APPEND \"$sent_folder\" (\\Seen) \{$length}\r\n");
052e0c26	403	$tmp = fgets ($imap_stream, 1024);
	404	}
	405
	406	function sqimap_append_done ($imap_stream) {
	407	fputs ($imap_stream, "\r\n");
	408	$tmp = fgets ($imap_stream, 1024);
	409	}
	410	?>