[squirrelmail.git] / functions / imap_general.php

<?php

/**
 * imap.php
 *
 * Copyright (c) 1999-2002 The SquirrelMail Project Team
 * Licensed under the GNU GPL. For full terms see the file COPYING.
 *
 * This implements all functions that do general imap functions.
 *
 * $Id$
 */

require_once('../functions/page_header.php');
require_once('../functions/display_messages.php');

/**
 * Unique SessionId
 *
 * Sets an unique session id in order to avoid simultanous sessions crash.
 *
 * @return	string	a 4 chars unique string
 */
function sqimap_session_id() {

    global $data_dir, $username;

    $IMAPSessionID = substr(session_id(), -4);
    if( $IMAPSessionID == '' ) {
        $IMAPSessionID = 'A001';
    }

    return( $IMAPSessionID );
}

/******************************************************************************
** Both send a command and accept the result from the command.  This is
** to allow proper session number handling.
******************************************************************************/

function sqimap_run_command ($imap_stream, $query, $handle_errors, &$response, &$message) {
    fputs ($imap_stream, sqimap_session_id() . $query . "\r\n");
    $read = sqimap_read_data ($imap_stream, sqimap_session_id(), $handle_errors, $response, $message);
    return $read;
}


/******************************************************************************
**  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;
    
    $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
            $size = -1;
            $data[] = $read;
            $read = fgets($imap_stream, 9096);
        } else {
            $size = -1;
        }
        while (1) {
            while (strpos($read, "\n") === false) {
                $read .= fgets($imap_stream, 9096);
            }
            // 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, $regs) ||
                   (($size == -1) && 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 ($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" .
                 _("ERROR : Could not complete request.") .
                 "</b><br>\n" .
                 _("Reason Given: ") .
                 $message . "</font><br>\n";
            exit;
        }
    } else if ($response == 'BAD') {
        set_up_language($squirrelmail_language);
        echo "<br><b><font color=$color[2]>\n" .
             _("ERROR : Bad or malformed request.") .
             "</b><br>\n" .
             _("Server responded: ") .
             $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, $error_string, 15);
    if ( !$imap_stream ) {
        return FALSE;
    }
    $server_info = fgets ($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", $message);
                }
                echo '<br>' . _("Read data:") . "<br>\n";
                if (is_array($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);
                
                displayHtmlHeader( _("Unknown user or password incorrect.") );
                echo "<body bgcolor=\"#ffffff\">\n";
                error_username_password_incorrect();
                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;
    
    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;
    } else {
        return $sqimap_capabilities[$capability];
    }
}

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

    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 sprintf( "BUG!  Couldn't get number of messages in %s!", $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>
 *    "Luke Ehresman" <lkehresman@yahoo.com>
 *    lkehresman@yahoo.com (Luke Ehresman)
 *           become:   Luke Ehresman
 *    <lkehresman@yahoo.com>
 *           becomes:   lkehresman@yahoo.com
 */
function sqimap_find_displayable_name ($string) {
    $string = trim($string);
    
    if ( ereg('^(.+)<.*>', $string, $regs) ) {
        $string = ereg_replace ('"', '', $regs[1] );
    }
    elseif ( ereg('\((.*)\)', $string, $regs) ) {
        if( ( $regs[1] == '' ) || ( $regs[1] == ' ' ) ){
            if ( ereg('^(.+) \(', $string, $regs) ) {
               $string = ereg_replace( ' \(\)$', '', $string );
            } else {
               $string = '&nbsp';
            }
        } else {
            $string = $regs[1];
        }
    }
    else {
        $string = sqimap_find_email($string);
    }

    return trim($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
bccadd02	2
35586184	3	/**
15e6162e	4	* imap.php
35586184	5	*
15e6162e	6	* Copyright (c) 1999-2002 The SquirrelMail Project Team
15e6162e	7	* Licensed under the GNU GPL. For full terms see the file COPYING.
35586184	8	*
15e6162e	9	* This implements all functions that do general imap functions.
35586184	10	*
15e6162e	11	* $Id$
35586184	12	*/
35586184	13
9c737111	14	require_once('../functions/page_header.php');
9c737111	15	require_once('../functions/display_messages.php');
35586184	16
	17	/**
	18	* Unique SessionId
	19	*
	20	* Sets an unique session id in order to avoid simultanous sessions crash.
	21	*
	22	* @return string a 4 chars unique string
	23	*/
	24	function sqimap_session_id() {
7350889b	25
9c737111	26	global $data_dir, $username;
71257f8b	27
9c737111	28	$IMAPSessionID = substr(session_id(), -4);
	29	if( $IMAPSessionID == '' ) {
	30	$IMAPSessionID = 'A001';
	31	}
7350889b	32
9c737111	33	return( $IMAPSessionID );
	34	}
	35
42a07ac1	36	/******************************************************************************
	37	** Both send a command and accept the result from the command. This is
	38	** to allow proper session number handling.
	39	******************************************************************************/
	40
	41	function sqimap_run_command ($imap_stream, $query, $handle_errors, &$response, &$message) {
	42	fputs ($imap_stream, sqimap_session_id() . $query . "\r\n");
	43	$read = sqimap_read_data ($imap_stream, sqimap_session_id(), $handle_errors, $response, $message);
	44	return $read;
	45	}
	46
9c737111	47
	48	/******************************************************************************
	49	** Reads the output from the IMAP stream. If handle_errors is set to true,
	50	** this will also handle all errors that are received. If it is not set,
	51	** the errors will be sent back through $response and $message
	52	******************************************************************************/
	53
	54	function sqimap_read_data_list ($imap_stream, $pre, $handle_errors,
	55	&$response, &$message) {
	56	global $color, $squirrelmail_language;
	57
	58	$read = '';
	59	$resultlist = array();
	60
	61	$more_msgs = true;
	62	while ($more_msgs) {
	63	$data = array();
	64	$total_size = 0;
	65	while (strpos($read, "\n") === false) {
d9ca5b40	66	$read .= fgets($imap_stream, 9096);
9c737111	67	}
	68
	69	if (ereg("^\\* [0-9]+ FETCH.*\\{([0-9]+)\\}", $read, $regs)) {
	70	$size = $regs[1];
	71	} else if (ereg("^\\* [0-9]+ FETCH", $read, $regs)) {
91f68e94	72	// Sizeless response, probably single-line
55412053	73	$size = -1;
91f68e94	74	$data[] = $read;
91f68e94	75	$read = fgets($imap_stream, 9096);
9c737111	76	} else {
55412053	77	$size = -1;
9c737111	78	}
9c737111	79	while (1) {
91f68e94	80	while (strpos($read, "\n") === false) {
9c737111	81	$read .= fgets($imap_stream, 9096);
91f68e94	82	}
91f68e94	83	// If we know the size, no need to look at the end parameters
91f68e94	84	if ($size > 0) {
9c737111	85	if ($total_size == $size) {
	86	// We've reached the end of this 'message', switch to the next one.
	87	$data[] = $read;
	88	break;
	89	} else if ($total_size > $size) {
	90	$difference = $total_size - $size;
	91	$total_size = $total_size - strlen($read);
	92	$data[] = substr ($read, 0, strlen($read)-$difference);
	93	$read = substr ($read, strlen($read)-$difference, strlen($read));
	94	break;
	95	} else {
	96	$data[] = $read;
	97	$read = fgets($imap_stream, 9096);
	98	while (strpos($read, "\n") === false) {
f1e6f580	99	$read .= fgets($imap_stream, 9096);
9c737111	100	}
	101	}
	102	$total_size += strlen($read);
4f5c1bcb	103	} else {
9c737111	104	if (ereg("^$pre (OK\|BAD\|NO)(.*)", $read, $regs) \|\|
55412053	105	(($size == -1) && ereg("^\\* [0-9]+ FETCH.*", $read, $regs))) {
9c737111	106	break;
	107	} else {
	108	$data[] = $read;
	109	$read = fgets ($imap_stream, 9096);
	110	}
4f5c1bcb	111	}
9c737111	112	}
	113
	114	while (($more_msgs = !ereg("^$pre (OK\|BAD\|NO)(.*)$", $read, $regs)) &&
	115	!ereg("^\\* [0-9]+ FETCH.*", $read, $regs)) {
91f68e94	116	$read = fgets($imap_stream, 9096);
9c737111	117	}
	118	$resultlist[] = $data;
	119	}
	120	$response = $regs[1];
	121	$message = trim($regs[2]);
	122
	123	if ($handle_errors == false) { return $resultlist; }
	124
	125	if ($response == 'NO') {
	126	// ignore this error from m$ exchange, it is not fatal (aka bug)
	127	if (strstr($message, 'command resulted in') === false) {
441f2d33	128	set_up_language($squirrelmail_language);
9c737111	129	echo "<br><b><font color=$color[2]>\n" .
	130	_("ERROR : Could not complete request.") .
	131	"</b><br>\n" .
	132	_("Reason Given: ") .
	133	$message . "</font><br>\n";
052e0c26	134	exit;
9c737111	135	}
	136	} else if ($response == 'BAD') {
	137	set_up_language($squirrelmail_language);
	138	echo "<br><b><font color=$color[2]>\n" .
	139	_("ERROR : Bad or malformed request.") .
	140	"</b><br>\n" .
	141	_("Server responded: ") .
	142	$message . "</font><br>\n";
	143	exit;
	144	}
	145	return $resultlist;
	146	}
	147
	148	function sqimap_read_data ($imap_stream, $pre, $handle_errors, &$response, &$message) {
	149
	150	$res = sqimap_read_data_list($imap_stream, $pre, $handle_errors, $response, $message);
	151	return $res[0];
	152
	153	}
	154
	155	/******************************************************************************
	156	** Logs the user into the imap server. If $hide is set, no error messages
	157	** will be displayed. This function returns the imap connection handle.
	158	******************************************************************************/
	159	function sqimap_login ($username, $password, $imap_server_address, $imap_port, $hide) {
	160
	161	global $color, $squirrelmail_language, $HTTP_ACCEPT_LANGUAGE, $onetimepad;
	162
	163	$imap_stream = fsockopen ( $imap_server_address, $imap_port,
	164	$error_number, $error_string, 15);
	165	if ( !$imap_stream ) {
	166	return FALSE;
	167	}
	168	$server_info = fgets ($imap_stream, 1024);
	169
	170	// Decrypt the password
	171	$password = OneTimePadDecrypt($password, $onetimepad);
	172
	173	/ Do some error correction /
	174	if (!$imap_stream) {
	175	if (!$hide) {
441f2d33	176	set_up_language($squirrelmail_language, true);
1b187352	177	printf (_("Error connecting to IMAP server: %s.")."<br>\r\n", $imap_server_address);
052e0c26	178	echo "$error_number : $error_string<br>\r\n";
9c737111	179	}
	180	exit;
	181	}
052e0c26	182
9c737111	183	fputs ($imap_stream, sqimap_session_id() . ' LOGIN "' . quoteIMAP($username) .
	184	'" "' . quoteIMAP($password) . "\"\r\n");
	185	$read = sqimap_read_data ($imap_stream, sqimap_session_id(), false, $response, $message);
052e0c26	186
9c737111	187	/ If the connection was not successful, lets see why /
	188	if ($response != 'OK') {
	189	if (!$hide) {
74424a43	190	if ($response != 'NO') {
9c737111	191	// "BAD" and anything else gets reported here.
	192	set_up_language($squirrelmail_language, true);
	193	if ($response == 'BAD') {
3d2504a1	194	printf (_("Bad request: %s")."<br>\r\n", $message);
9c737111	195	} else {
3d2504a1	196	printf (_("Unknown error: %s") . "<br>\n", $message);
9c737111	197	}
	198	echo '<br>' . _("Read data:") . "<br>\n";
	199	if (is_array($read)) {
	200	foreach ($read as $line) {
	201	echo htmlspecialchars($line) . "<br>\n";
	202	}
	203	}
	204	exit;
165e24a7	205	} else {
9c737111	206	// If the user does not log in with the correct
	207	// username and password it is not possible to get the
	208	// correct locale from the user's preferences.
	209	// Therefore, apply the same hack as on the login
	210	// screen.
	211
	212	// $squirrelmail_language is set by a cookie when
	213	// the user selects language and logs out
	214
	215	set_up_language($squirrelmail_language, true);
	216
	217	displayHtmlHeader( _("Unknown user or password incorrect.") );
	218	echo "<body bgcolor=\"#ffffff\">\n";
	219	error_username_password_incorrect();
	220	session_destroy();
	221	exit;
052e0c26	222	}
9c737111	223	} else {
052e0c26	224	exit;
9c737111	225	}
	226	}
	227
	228	return $imap_stream;
	229	}
f1e6f580	230
9c737111	231	/*
	232	* Simply logs out the imap session
	233	*/
	234	function sqimap_logout ($imap_stream) {
	235	fputs ($imap_stream, sqimap_session_id() . " LOGOUT\r\n");
	236	}
	237
	238	function sqimap_capability($imap_stream, $capability) {
	239	global $sqimap_capabilities;
	240
	241	if (!is_array($sqimap_capabilities)) {
	242	fputs ($imap_stream, sqimap_session_id() . " CAPABILITY\r\n");
	243	$read = sqimap_read_data($imap_stream, sqimap_session_id(), true, $a, $b);
	244
	245	$c = explode(' ', $read[0]);
	246	for ($i=2; $i < count($c); $i++) {
	247	$cap_list = explode('=', $c[$i]);
	248	if (isset($cap_list[1]))
	249	$sqimap_capabilities[$cap_list[0]] = $cap_list[1];
	250	else
	251	$sqimap_capabilities[$cap_list[0]] = TRUE;
f1e6f580	252	}
9c737111	253	}
9c737111	254	if (! isset($sqimap_capabilities[$capability])) {
f1e6f580	255	return false;
9c737111	256	} else {
f1e6f580	257	return $sqimap_capabilities[$capability];
f1e6f580	258	}
9c737111	259	}
	260
	261	/******************************************************************************
	262	** Returns the delimeter between mailboxes: INBOX/Test, or INBOX.Test...
	263	******************************************************************************/
	264	function sqimap_get_delimiter ($imap_stream = false) {
	265
	266	global $sqimap_delimiter;
	267	global $optional_delimiter;
	268
	269	/* Use configured delimiter if set */
	270	if((!empty($optional_delimiter)) && $optional_delimiter != 'detect') {
	271	return $optional_delimiter;
	272	}
	273
	274	/* Do some caching here */
	275	if (!$sqimap_delimiter) {
	276	if (sqimap_capability($imap_stream, 'NAMESPACE')) {
f1e6f580	277	/* According to something that I can't find, this is supposed to work on all systems
	278	OS: This won't work in Courier IMAP.
	279	OS: According to rfc2342 response from NAMESPACE command is:
	280	OS: * NAMESPACE (PERSONAL NAMESPACES) (OTHER_USERS NAMESPACE) (SHARED NAMESPACES)
	281	OS: We want to lookup all personal NAMESPACES...
	282	*/
	283	fputs ($imap_stream, sqimap_session_id() . " NAMESPACE\r\n");
	284	$read = sqimap_read_data($imap_stream, sqimap_session_id(), true, $a, $b);
	285	if (eregi('\\* NAMESPACE +(\\( \\(.+\\) \\)\|NIL) +(\\( \\(.+\\) \\)\|NIL) +(\\( \\(.+\\) \\)\|NIL)', $read[0], $data)) {
9c737111	286	if (eregi('^\\( \\((.)\\) *\\)', $data[1], $data2)) {
f1e6f580	287	$pn = $data2[1];
9c737111	288	}
f1e6f580	289	$pna = explode(')(', $pn);
9c737111	290	while (list($k, $v) = each($pna)) {
862ff2d3	291	$lst = explode('"', $v);
	292	if (isset($lst[3])) {
	293	$pn[$lst[1]] = $lst[3];
	294	} else {
74424a43	295	$pn[$lst[1]] = '';
862ff2d3	296	}
f1e6f580	297	}
	298	}
	299	$sqimap_delimiter = $pn[0];
	300	} else {
	301	fputs ($imap_stream, ". LIST \"INBOX\" \"\"\r\n");
	302	$read = sqimap_read_data($imap_stream, '.', true, $a, $b);
	303	$quote_position = strpos ($read[0], '"');
	304	$sqimap_delimiter = substr ($read[0], $quote_position+1, 1);
	305	}
	306	}
	307	return $sqimap_delimiter;
9c737111	308	}
052e0c26	309
052e0c26	310
9c737111	311	/*
	312	* Gets the number of messages in the current mailbox.
	313	*/
	314	function sqimap_get_num_messages ($imap_stream, $mailbox) {
	315
	316	fputs ($imap_stream, sqimap_session_id() . " EXAMINE \"$mailbox\"\r\n");
	317	$read_ary = sqimap_read_data ($imap_stream, sqimap_session_id(), true, $result, $message);
	318	for ($i = 0; $i < count($read_ary); $i++) {
	319	if (ereg("[^ ]+ +([^ ]+) +EXISTS", $read_ary[$i], $regs)) {
	320	return $regs[1];
	321	}
	322	}
	323	return sprintf( "BUG! Couldn't get number of messages in %s!", $mailbox );
	324
	325	}
	326
	327
	328	/*
	329	* Returns a displayable email address
	330	*/
	331	function sqimap_find_email ($string) {
	332	/** Luke Ehresman <lehresma@css.tayloru.edu>
	333	** <lehresma@css.tayloru.edu>
	334	** lehresma@css.tayloru.edu
	335	**
	336	** What about
	337	** lehresma@css.tayloru.edu (Luke Ehresman)
	338	**/
	339
	340	if (ereg("<([^>]+)>", $string, $regs)) {
	341	$string = $regs[1];
	342	}
	343	return trim($string);
	344	}
	345
	346
	347	/*
6282af09	348	* Takes the From: field, and creates a displayable name.
	349	* Luke Ehresman <lkehresman@yahoo.com>
	350	* "Luke Ehresman" <lkehresman@yahoo.com>
	351	* lkehresman@yahoo.com (Luke Ehresman)
	352	* become: Luke Ehresman
	353	* <lkehresman@yahoo.com>
	354	* becomes: lkehresman@yahoo.com
	355	*/
9c737111	356	function sqimap_find_displayable_name ($string) {
6282af09	357	$string = trim($string);
6282af09	358
7e3de682	359	if ( ereg('^(.+)<.*>', $string, $regs) ) {
	360	$string = ereg_replace ('"', '', $regs[1] );
	361	}
	362	elseif ( ereg('\((.*)\)', $string, $regs) ) {
9e9c63e4	363	if( ( $regs[1] == '' ) \|\| ( $regs[1] == ' ' ) ){
	364	if ( ereg('^(.+) \(', $string, $regs) ) {
	365	$string = ereg_replace( ' \(\)$', '', $string );
	366	} else {
	367	$string = '&nbsp';
	368	}
	369	} else {
	370	$string = $regs[1];
	371	}
7e3de682	372	}
	373	else {
	374	$string = sqimap_find_email($string);
9c737111	375	}
9c737111	376
7e3de682	377	return trim($string);
	378	}
	379
9c737111	380	/*
	381	* Returns the number of unseen messages in this folder
	382	*/
	383	function sqimap_unseen_messages ($imap_stream, $mailbox) {
	384	//fputs ($imap_stream, sqimap_session_id() . " SEARCH UNSEEN NOT DELETED\r\n");
	385	fputs ($imap_stream, sqimap_session_id() . " STATUS \"$mailbox\" (UNSEEN)\r\n");
	386	$read_ary = sqimap_read_data ($imap_stream, sqimap_session_id(), true, $result, $message);
	387	ereg("UNSEEN ([0-9]+)", $read_ary[0], $regs);
	388	return $regs[1];
	389	}
	390
	391
	392	/*
	393	* Saves a message to a given folder -- used for saving sent messages
	394	*/
	395	function sqimap_append ($imap_stream, $sent_folder, $length) {
	396	fputs ($imap_stream, sqimap_session_id() . " APPEND \"$sent_folder\" (\\Seen) \{$length}\r\n");
	397	$tmp = fgets ($imap_stream, 1024);
	398	}
	399
	400	function sqimap_append_done ($imap_stream) {
	401	fputs ($imap_stream, "\r\n");
	402	$tmp = fgets ($imap_stream, 1024);
	403	}
	404
15e6162e	405	?>