[squirrelmail.git] / functions / imap_general.php

<?php

/**
 *   imap.php
 *
 *   Copyright (c) 1999-2001 The SquirrelMail Development Team
 *   Licensed under the GNU GPL. For full terms see the file COPYING.
 *
 *   This implements all functions that do general imap functions.
 *
 *   $Id$
 */

/*****************************************************************/
/*** THIS FILE NEEDS TO HAVE ITS FORMATTING FIXED!!!           ***/
/*** PLEASE DO SO AND REMOVE THIS COMMENT SECTION.             ***/
/***    + Base level indent should begin at left margin, as    ***/
/***      the function definition and comments start below.    ***/
/***    + All identation should consist of four space blocks   ***/
/***    + Tab characters are evil.                             ***/
/***    + all comments should use "slash-star ... star-slash"  ***/
/***      style -- no pound characters, no slash-slash style   ***/
/***    + FLOW CONTROL STATEMENTS (if, while, etc) SHOULD      ***/
/***      ALWAYS USE { AND } CHARACTERS!!!                     ***/
/***    + Please use ' instead of ", when possible. Note "     ***/
/***      should always be used in _( ) function calls.        ***/
/*** Thank you for your help making the SM code more readable. ***/
/*****************************************************************/

/**
 * 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 );
   }


   /******************************************************************************
    **  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";
            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, $error_string, 15);
      if( !$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", $message);
               echo '<br>';
               echo _("Read data:") . "<br>\n";
               if (is_array($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;

        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 $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
bccadd02	2
35586184	3	/**
	4	* imap.php
	5	*
	6	* Copyright (c) 1999-2001 The SquirrelMail Development Team
	7	* Licensed under the GNU GPL. For full terms see the file COPYING.
	8	*
	9	* This implements all functions that do general imap functions.
	10	*
	11	* $Id$
	12	*/
	13
	14	/*****************************************************************/
	15	/* THIS FILE NEEDS TO HAVE ITS FORMATTING FIXED!!! */
	16	/* PLEASE DO SO AND REMOVE THIS COMMENT SECTION. */
	17	/* + Base level indent should begin at left margin, as */
	18	/* the function definition and comments start below. */
	19	/* + All identation should consist of four space blocks */
	20	/* + Tab characters are evil. */
	21	/* + all comments should use "slash-star ... star-slash" */
	22	/* style -- no pound characters, no slash-slash style */
	23	/* + FLOW CONTROL STATEMENTS (if, while, etc) SHOULD */
	24	/* ALWAYS USE { AND } CHARACTERS!!! */
	25	/* + Please use ' instead of ", when possible. Note " */
	26	/* should always be used in _( ) function calls. */
	27	/* Thank you for your help making the SM code more readable. */
	28	/*****************************************************************/
	29
	30	/**
	31	* Unique SessionId
	32	*
	33	* Sets an unique session id in order to avoid simultanous sessions crash.
	34	*
	35	* @return string a 4 chars unique string
	36	*/
	37	function sqimap_session_id() {
7350889b	38
71257f8b	39	global $data_dir, $username;
71257f8b	40
cb48c245	41	$IMAPSessionID = substr(session_id(), -4);
cb48c245	42	if( $IMAPSessionID == '' ) {
22edfb6f	43	$IMAPSessionID = 'A001';
cb48c245	44	}
7350889b	45
cb48c245	46	return( $IMAPSessionID );
180aa6d7	47	}
	48
	49
052e0c26	50	/******************************************************************************
	51	** Reads the output from the IMAP stream. If handle_errors is set to true,
	52	** this will also handle all errors that are received. If it is not set,
	53	** the errors will be sent back through $response and $message
	54	******************************************************************************/
a3432f47	55
91f68e94	56	function sqimap_read_data_list ($imap_stream, $pre, $handle_errors,
f1e6f580	57	&$response, &$message) {
f1e6f580	58	global $color, $squirrelmail_language;
245a6892	59
f1e6f580	60	$read = '';
91f68e94	61	$resultlist = array();
7350889b	62
91f68e94	63	$more_msgs = true;
	64	while ($more_msgs) {
	65	$data = array();
	66	$total_size = 0;
d9ca5b40	67	while (strpos($read, "\n") === false) {
	68	$read .= fgets($imap_stream, 9096);
	69	}
4f5c1bcb	70
91f68e94	71	if (ereg("^\\* [0-9]+ FETCH.*\\{([0-9]+)\\}", $read, $regs)) {
	72	$size = $regs[1];
	73	} else if (ereg("^\\* [0-9]+ FETCH", $read, $regs)) {
	74	// Sizeless response, probably single-line
55412053	75	$size = -1;
91f68e94	76	$data[] = $read;
91f68e94	77	$read = fgets($imap_stream, 9096);
d9ca5b40	78	} else {
55412053	79	$size = -1;
91f68e94	80	}
	81	while (1) {
	82	while (strpos($read, "\n") === false) {
	83	$read .= fgets($imap_stream, 9096);
	84	}
91f68e94	85	// If we know the size, no need to look at the end parameters
	86	if ($size > 0) {
	87	if ($total_size == $size) {
	88	// We've reached the end of this 'message', switch to the next one.
	89	$data[] = $read;
37e24380	90	break;
91f68e94	91	} else if ($total_size > $size) {
	92	$difference = $total_size - $size;
	93	$total_size = $total_size - strlen($read);
	94	$data[] = substr ($read, 0, strlen($read)-$difference);
	95	$read = substr ($read, strlen($read)-$difference, strlen($read));
	96	break;
	97	} else {
	98	$data[] = $read;
	99	$read = fgets($imap_stream, 9096);
f1e6f580	100	while (strpos($read, "\n") === false) {
	101	$read .= fgets($imap_stream, 9096);
	102	}
91f68e94	103	}
91f68e94	104	$total_size += strlen($read);
4f5c1bcb	105	} else {
91f68e94	106	if (ereg("^$pre (OK\|BAD\|NO)(.*)", $read, $regs) \|\|
55412053	107	(($size == -1) && ereg("^\\* [0-9]+ FETCH.*", $read, $regs))) {
91f68e94	108	break;
	109	} else {
	110	$data[] = $read;
	111	$read = fgets ($imap_stream, 9096);
	112	}
4f5c1bcb	113	}
d9ca5b40	114	}
a3db804c	115
91f68e94	116	while (($more_msgs = !ereg("^$pre (OK\|BAD\|NO)(.*)$", $read, $regs)) &&
	117	!ereg("^\\* [0-9]+ FETCH.*", $read, $regs)) {
	118	$read = fgets($imap_stream, 9096);
	119	}
	120	$resultlist[] = $data;
	121	}
3d2504a1	122	$response = $regs[1];
	123	$message = trim($regs[2]);
	124
f7b1b3b1	125	if ($handle_errors == false) { return $resultlist; }
d9ca5b40	126
74424a43	127	if ($response == 'NO') {
f358f099	128	// ignore this error from m$ exchange, it is not fatal (aka bug)
8e8ebd27	129	if (strstr($message, 'command resulted in') === false) {
441f2d33	130	set_up_language($squirrelmail_language);
04632dbc	131	echo "<br><b><font color=$color[2]>\n";
f358f099	132	echo _("ERROR : Could not complete request.");
04632dbc	133	echo "</b><br>\n";
f358f099	134	echo _("Reason Given: ");
3d2504a1	135	echo $message . "</font><br>\n";
052e0c26	136	exit;
052e0c26	137	}
74424a43	138	} else if ($response == 'BAD') {
f358f099	139	set_up_language($squirrelmail_language);
	140	echo "<br><b><font color=$color[2]>\n";
	141	echo _("ERROR : Bad or malformed request.");
	142	echo "</b><br>\n";
	143	echo _("Server responded: ");
	144	echo $message . "</font><br>\n";
	145	exit;
052e0c26	146	}
91f68e94	147	return $resultlist;
	148	}
	149
	150	function sqimap_read_data ($imap_stream, $pre, $handle_errors, &$response, &$message) {
f1e6f580	151	$res = sqimap_read_data_list($imap_stream, $pre, $handle_errors, $response, $message);
f1e6f580	152	return $res[0];
052e0c26	153	}
f1e6f580	154
052e0c26	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) {
cb48c245	160
bc104ef3	161	global $color, $squirrelmail_language, $HTTP_ACCEPT_LANGUAGE, $onetimepad;
1b187352	162
cb48c245	163	$imap_stream = fsockopen ( $imap_server_address, $imap_port,
cb48c245	164	$error_number, $error_string, 15);
be8bb7f0	165	if( !$imap_stream ) {
	166	return FALSE;
	167	}
052e0c26	168	$server_info = fgets ($imap_stream, 1024);
cb48c245	169
52eefafc	170	// Decrypt the password
bc104ef3	171	$password = OneTimePadDecrypt($password, $onetimepad);
52eefafc	172
052e0c26	173	/ Do some error correction /
	174	if (!$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 : $error_string<br>\r\n";
	179	}
	180	exit;
	181	}
	182
f1e6f580	183	fputs ($imap_stream, sqimap_session_id() . ' LOGIN "' . quoteIMAP($username) .
704db5b2	184	'" "' . quoteIMAP($password) . "\"\r\n");
180aa6d7	185	$read = sqimap_read_data ($imap_stream, sqimap_session_id(), false, $response, $message);
052e0c26	186
052e0c26	187	/ If the connection was not successful, lets see why /
3d2504a1	188	if ($response != "OK") {
052e0c26	189	if (!$hide) {
74424a43	190	if ($response != 'NO') {
3d2504a1	191	// "BAD" and anything else gets reported here.
441f2d33	192	set_up_language($squirrelmail_language, true);
74424a43	193	if ($response == 'BAD')
3d2504a1	194	printf (_("Bad request: %s")."<br>\r\n", $message);
	195	else
	196	printf (_("Unknown error: %s") . "<br>\n", $message);
74424a43	197	echo '<br>';
3d2504a1	198	echo _("Read data:") . "<br>\n";
f1e6f580	199	if (is_array($read))
	200	{
	201	foreach ($read as $line)
	202	{
	203	echo htmlspecialchars($line) . "<br>\n";
	204	}
3d2504a1	205	}
052e0c26	206	exit;
165e24a7	207	} else {
1b187352	208	// If the user does not log in with the correct
	209	// username and password it is not possible to get the
	210	// correct locale from the user's preferences.
	211	// Therefore, apply the same hack as on the login
	212	// screen.
	213
	214	// $squirrelmail_language is set by a cookie when
	215	// the user selects language and logs out
f1e6f580	216
441f2d33	217	set_up_language($squirrelmail_language, true);
f1e6f580	218
052e0c26	219	?>
052e0c26	220	<html>
74424a43	221	<body bgcolor="ffffff">
052e0c26	222	<br>
052e0c26	223	<center>
74424a43	224	<table width="70%" noborder bgcolor="ffffff" align="center">
052e0c26	225	<tr>
74424a43	226	<td bgcolor="dcdcdc">
74424a43	227	<font color="cc0000">
052e0c26	228	<center>
59177427	229	<?php echo _("ERROR") ?>
052e0c26	230	</center>
	231	</font>
	232	</td>
	233	</tr>
	234	<tr>
	235	<td>
	236	<center>
59177427	237	<?php echo _("Unknown user or password incorrect.") ?><br>
5630c7ec	238	<a href="login.php" target="_top"><?php echo _("Click here to try again") ?></a>
052e0c26	239	</center>
	240	</td>
	241	</tr>
	242	</table>
	243	</center>
	244	</body>
	245	</html>
59177427	246	<?php
052e0c26	247	session_destroy();
052e0c26	248	exit;
052e0c26	249	}
	250	} else {
	251	exit;
	252	}
	253	}
	254
	255	return $imap_stream;
	256	}
	257
	258
	259
	260
	261	/******************************************************************************
	262	** Simply logs out the imap session
	263	******************************************************************************/
	264	function sqimap_logout ($imap_stream) {
180aa6d7	265	fputs ($imap_stream, sqimap_session_id() . " LOGOUT\r\n");
052e0c26	266	}
052e0c26	267
f435778e	268	function sqimap_capability($imap_stream, $capability) {
f1e6f580	269	global $sqimap_capabilities;
f1e6f580	270
	271	if (!is_array($sqimap_capabilities)) {
	272	fputs ($imap_stream, sqimap_session_id() . " CAPABILITY\r\n");
	273	$read = sqimap_read_data($imap_stream, sqimap_session_id(), true, $a, $b);
	274
	275	$c = explode(' ', $read[0]);
	276	for ($i=2; $i < count($c); $i++) {
	277	$cap_list = explode('=', $c[$i]);
	278	if (isset($cap_list[1]))
	279	$sqimap_capabilities[$cap_list[0]] = $cap_list[1];
	280	else
	281	$sqimap_capabilities[$cap_list[0]] = TRUE;
	282	}
	283	}
	284	if (! isset($sqimap_capabilities[$capability]))
	285	return false;
	286	return $sqimap_capabilities[$capability];
	287	}
052e0c26	288
	289	/******************************************************************************
	290	** Returns the delimeter between mailboxes: INBOX/Test, or INBOX.Test...
	291	******************************************************************************/
f435778e	292	function sqimap_get_delimiter ($imap_stream = false) {
7350889b	293
f435778e	294	global $sqimap_delimiter;
f435778e	295	global $optional_delimiter;
f6941f00	296
f435778e	297	/* Use configured delimiter if set */
	298	if((!empty($optional_delimiter)) && $optional_delimiter != "detect")
	299	return $optional_delimiter;
a3db804c	300
f435778e	301	/* Do some caching here */
f435778e	302	if (!$sqimap_delimiter) {
f1e6f580	303	if (sqimap_capability($imap_stream, "NAMESPACE")) {
	304	/* According to something that I can't find, this is supposed to work on all systems
	305	OS: This won't work in Courier IMAP.
	306	OS: According to rfc2342 response from NAMESPACE command is:
	307	OS: * NAMESPACE (PERSONAL NAMESPACES) (OTHER_USERS NAMESPACE) (SHARED NAMESPACES)
	308	OS: We want to lookup all personal NAMESPACES...
	309	*/
	310	fputs ($imap_stream, sqimap_session_id() . " NAMESPACE\r\n");
	311	$read = sqimap_read_data($imap_stream, sqimap_session_id(), true, $a, $b);
	312	if (eregi('\\* NAMESPACE +(\\( \\(.+\\) \\)\|NIL) +(\\( \\(.+\\) \\)\|NIL) +(\\( \\(.+\\) \\)\|NIL)', $read[0], $data)) {
	313	if (eregi('^\\( \\((.)\\) *\\)', $data[1], $data2))
	314	$pn = $data2[1];
	315	$pna = explode(')(', $pn);
	316	while (list($k, $v) = each($pna))
	317	{
862ff2d3	318	$lst = explode('"', $v);
	319	if (isset($lst[3])) {
	320	$pn[$lst[1]] = $lst[3];
	321	} else {
74424a43	322	$pn[$lst[1]] = '';
862ff2d3	323	}
f1e6f580	324	}
	325	}
	326	$sqimap_delimiter = $pn[0];
	327	} else {
	328	fputs ($imap_stream, ". LIST \"INBOX\" \"\"\r\n");
	329	$read = sqimap_read_data($imap_stream, '.', true, $a, $b);
	330	$quote_position = strpos ($read[0], '"');
	331	$sqimap_delimiter = substr ($read[0], $quote_position+1, 1);
	332	}
	333	}
	334	return $sqimap_delimiter;
f435778e	335	}
052e0c26	336
	337
	338	/******************************************************************************
	339	** Gets the number of messages in the current mailbox.
	340	******************************************************************************/
	341	function sqimap_get_num_messages ($imap_stream, $mailbox) {
180aa6d7	342	fputs ($imap_stream, sqimap_session_id() . " EXAMINE \"$mailbox\"\r\n");
180aa6d7	343	$read_ary = sqimap_read_data ($imap_stream, sqimap_session_id(), true, $result, $message);
052e0c26	344	for ($i = 0; $i < count($read_ary); $i++) {
441f2d33	345	if (ereg("[^ ]+ +([^ ]+) +EXISTS", $read_ary[$i], $regs)) {
f1e6f580	346	return $regs[1];
052e0c26	347	}
052e0c26	348	}
441f2d33	349	return "BUG! Couldn't get number of messages in $mailbox!";
052e0c26	350	}
	351
	352
	353	/******************************************************************************
	354	** Returns a displayable email address
	355	******************************************************************************/
	356	function sqimap_find_email ($string) {
	357	/** Luke Ehresman <lehresma@css.tayloru.edu>
	358	** <lehresma@css.tayloru.edu>
	359	** lehresma@css.tayloru.edu
1d2ce1c3	360	**
	361	** What about
	362	** lehresma@css.tayloru.edu (Luke Ehresman)
052e0c26	363	**/
052e0c26	364
441f2d33	365	if (ereg("<([^>]+)>", $string, $regs)) {
441f2d33	366	$string = $regs[1];
052e0c26	367	}
	368	return trim($string);
	369	}
	370
	371
	372	/******************************************************************************
	373	** Takes the From: field, and creates a displayable name.
	374	** Luke Ehresman <lkehresman@yahoo.com>
	375	** becomes: Luke Ehresman
	376	** <lkehresman@yahoo.com>
	377	** becomes: lkehresman@yahoo.com
	378	******************************************************************************/
	379	function sqimap_find_displayable_name ($string) {
74424a43	380	$string = ' '.trim($string);
1d2ce1c3	381	$orig_string = $string;
74424a43	382	if (strpos($string, '<') && strpos($string, '>')) {
74424a43	383	if (strpos($string, '<') == 1) {
1d2ce1c3	384	$string = sqimap_find_email($string);
	385	} else {
	386	$string = trim($string);
74424a43	387	$string = substr($string, 0, strpos($string, '<'));
74424a43	388	$string = ereg_replace ('"', '', $string);
1d2ce1c3	389	}
1d2ce1c3	390
74424a43	391	if (trim($string) == '') {
1d2ce1c3	392	$string = sqimap_find_email($orig_string);
	393	}
	394	}
	395	return $string;
052e0c26	396	}
	397
	398
052e0c26	399	/******************************************************************************
	400	** Returns the number of unseen messages in this folder
	401	******************************************************************************/
4d2c01e3	402	function sqimap_unseen_messages ($imap_stream, $mailbox) {
180aa6d7	403	//fputs ($imap_stream, sqimap_session_id() . " SEARCH UNSEEN NOT DELETED\r\n");
	404	fputs ($imap_stream, sqimap_session_id() . " STATUS \"$mailbox\" (UNSEEN)\r\n");
	405	$read_ary = sqimap_read_data ($imap_stream, sqimap_session_id(), true, $result, $message);
441f2d33	406	ereg("UNSEEN ([0-9]+)", $read_ary[0], $regs);
441f2d33	407	return $regs[1];
052e0c26	408	}
	409
	410
	411	/******************************************************************************
	412	** Saves a message to a given folder -- used for saving sent messages
	413	******************************************************************************/
	414	function sqimap_append ($imap_stream, $sent_folder, $length) {
180aa6d7	415	fputs ($imap_stream, sqimap_session_id() . " APPEND \"$sent_folder\" (\\Seen) \{$length}\r\n");
052e0c26	416	$tmp = fgets ($imap_stream, 1024);
	417	}
	418
	419	function sqimap_append_done ($imap_stream) {
	420	fputs ($imap_stream, "\r\n");
	421	$tmp = fgets ($imap_stream, 1024);
	422	}
	423	?>