f8d8561f8d
sqimap_run_command_list as well for those list instances. I believe that it's now safe for sqimap_session_id() to return a different ID each time, but haven't yet tested this.
409 lines
14 KiB
PHP
Executable file
409 lines
14 KiB
PHP
Executable file
<?php
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/**
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* imap.php
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*
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* Copyright (c) 1999-2002 The SquirrelMail Project Team
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* Licensed under the GNU GPL. For full terms see the file COPYING.
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*
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* This implements all functions that do general imap functions.
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*
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* $Id$
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*/
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require_once('../functions/page_header.php');
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require_once('../functions/display_messages.php');
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/**
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* Unique SessionId
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*
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* Sets an unique session id in order to avoid simultanous sessions crash.
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*
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* @return string a 4 chars unique string
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*/
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function sqimap_session_id() {
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global $data_dir, $username;
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$IMAPSessionID = substr(session_id(), -4);
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if( $IMAPSessionID == '' ) {
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$IMAPSessionID = 'A001';
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}
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return( $IMAPSessionID );
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}
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/******************************************************************************
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** Both send a command and accept the result from the command. This is
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** to allow proper session number handling.
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******************************************************************************/
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function sqimap_run_command_list ($imap_stream, $query, $handle_errors, &$response, &$message) {
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fputs ($imap_stream, sqimap_session_id() . ' ' . $query . "\r\n");
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$read = sqimap_read_data_list ($imap_stream, sqimap_session_id(), $handle_errors, $response, $message);
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return $read;
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}
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function sqimap_run_command ($imap_stream, $query, $handle_errors, &$response, &$message) {
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fputs ($imap_stream, sqimap_session_id() . ' ' . $query . "\r\n");
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$read = sqimap_read_data ($imap_stream, sqimap_session_id(), $handle_errors, $response, $message);
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return $read;
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}
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/******************************************************************************
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** Reads the output from the IMAP stream. If handle_errors is set to true,
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** this will also handle all errors that are received. If it is not set,
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** the errors will be sent back through $response and $message
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******************************************************************************/
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function sqimap_read_data_list ($imap_stream, $pre, $handle_errors,
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&$response, &$message) {
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global $color, $squirrelmail_language;
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$read = '';
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$resultlist = array();
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$more_msgs = true;
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while ($more_msgs) {
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$data = array();
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$total_size = 0;
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while (strpos($read, "\n") === false) {
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$read .= fgets($imap_stream, 9096);
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}
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if (ereg("^\\* [0-9]+ FETCH.*\\{([0-9]+)\\}", $read, $regs)) {
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$size = $regs[1];
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} else if (ereg("^\\* [0-9]+ FETCH", $read, $regs)) {
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// Sizeless response, probably single-line
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$size = -1;
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$data[] = $read;
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$read = fgets($imap_stream, 9096);
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} else {
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$size = -1;
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}
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while (1) {
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while (strpos($read, "\n") === false) {
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$read .= fgets($imap_stream, 9096);
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}
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// If we know the size, no need to look at the end parameters
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if ($size > 0) {
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if ($total_size == $size) {
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// We've reached the end of this 'message', switch to the next one.
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$data[] = $read;
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break;
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} else if ($total_size > $size) {
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$difference = $total_size - $size;
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$total_size = $total_size - strlen($read);
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$data[] = substr ($read, 0, strlen($read)-$difference);
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$read = substr ($read, strlen($read)-$difference, strlen($read));
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break;
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} else {
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$data[] = $read;
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$read = fgets($imap_stream, 9096);
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while (strpos($read, "\n") === false) {
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$read .= fgets($imap_stream, 9096);
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}
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}
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$total_size += strlen($read);
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} else {
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if (ereg("^$pre (OK|BAD|NO)(.*)", $read, $regs) ||
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(($size == -1) && ereg("^\\* [0-9]+ FETCH.*", $read, $regs))) {
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break;
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} else {
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$data[] = $read;
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$read = fgets ($imap_stream, 9096);
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}
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}
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}
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while (($more_msgs = !ereg("^$pre (OK|BAD|NO)(.*)$", $read, $regs)) &&
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!ereg("^\\* [0-9]+ FETCH.*", $read, $regs)) {
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$read = fgets($imap_stream, 9096);
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}
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$resultlist[] = $data;
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}
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$response = $regs[1];
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$message = trim($regs[2]);
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if ($handle_errors == false) { return $resultlist; }
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if ($response == 'NO') {
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// ignore this error from m$ exchange, it is not fatal (aka bug)
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if (strstr($message, 'command resulted in') === false) {
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set_up_language($squirrelmail_language);
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echo "<br><b><font color=$color[2]>\n" .
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_("ERROR : Could not complete request.") .
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"</b><br>\n" .
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_("Reason Given: ") .
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$message . "</font><br>\n";
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exit;
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}
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} else if ($response == 'BAD') {
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set_up_language($squirrelmail_language);
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echo "<br><b><font color=$color[2]>\n" .
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_("ERROR : Bad or malformed request.") .
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"</b><br>\n" .
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_("Server responded: ") .
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$message . "</font><br>\n";
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exit;
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}
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return $resultlist;
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}
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function sqimap_read_data ($imap_stream, $pre, $handle_errors, &$response, &$message) {
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$res = sqimap_read_data_list($imap_stream, $pre, $handle_errors, $response, $message);
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return $res[0];
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}
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/******************************************************************************
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** Logs the user into the imap server. If $hide is set, no error messages
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** will be displayed. This function returns the imap connection handle.
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******************************************************************************/
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function sqimap_login ($username, $password, $imap_server_address, $imap_port, $hide) {
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global $color, $squirrelmail_language, $HTTP_ACCEPT_LANGUAGE, $onetimepad;
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$imap_stream = fsockopen ( $imap_server_address, $imap_port,
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$error_number, $error_string, 15);
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if ( !$imap_stream ) {
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return FALSE;
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}
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$server_info = fgets ($imap_stream, 1024);
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// Decrypt the password
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$password = OneTimePadDecrypt($password, $onetimepad);
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/** Do some error correction **/
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if (!$imap_stream) {
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if (!$hide) {
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set_up_language($squirrelmail_language, true);
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printf (_("Error connecting to IMAP server: %s.")."<br>\r\n", $imap_server_address);
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echo "$error_number : $error_string<br>\r\n";
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}
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exit;
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}
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$query = 'LOGIN "' . quoteIMAP($username) . '" "' . quoteIMAP($password) . '"';
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$read = sqimap_run_command ($imap_stream, $query, false, $response, $message);
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/** If the connection was not successful, lets see why **/
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if ($response != 'OK') {
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if (!$hide) {
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if ($response != 'NO') {
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// "BAD" and anything else gets reported here.
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set_up_language($squirrelmail_language, true);
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if ($response == 'BAD') {
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printf (_("Bad request: %s")."<br>\r\n", $message);
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} else {
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printf (_("Unknown error: %s") . "<br>\n", $message);
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}
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echo '<br>' . _("Read data:") . "<br>\n";
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if (is_array($read)) {
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foreach ($read as $line) {
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echo htmlspecialchars($line) . "<br>\n";
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}
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}
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exit;
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} else {
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/* If the user does not log in with the correct
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* username and password it is not possible to get the
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* correct locale from the user's preferences.
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* Therefore, apply the same hack as on the login
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* screen.
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*/
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/* $squirrelmail_language is set by a cookie when
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* the user selects language and logs out
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*/
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set_up_language($squirrelmail_language, true);
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displayHtmlHeader( _("Unknown user or password incorrect.") );
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echo "<body bgcolor=\"#ffffff\">\n";
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error_username_password_incorrect();
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session_destroy();
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exit;
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}
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} else {
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exit;
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}
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}
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return $imap_stream;
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}
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/*
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* Simply logs out the imap session
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*/
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function sqimap_logout ($imap_stream) {
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/* Logout is not valid until the server returns 'BYE' */
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sqimap_run_command($imap_stream, 'LOGOUT', false, $response, $message);
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}
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function sqimap_capability($imap_stream, $capability) {
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global $sqimap_capabilities;
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if (!is_array($sqimap_capabilities)) {
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$read = sqimap_run_command($imap_stream, 'CAPABILITY', true, $a, $b);
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$c = explode(' ', $read[0]);
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for ($i=2; $i < count($c); $i++) {
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$cap_list = explode('=', $c[$i]);
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if (isset($cap_list[1]))
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$sqimap_capabilities[$cap_list[0]] = $cap_list[1];
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else
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$sqimap_capabilities[$cap_list[0]] = TRUE;
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}
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}
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if (! isset($sqimap_capabilities[$capability])) {
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return false;
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} else {
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return $sqimap_capabilities[$capability];
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}
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}
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/******************************************************************************
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** Returns the delimeter between mailboxes: INBOX/Test, or INBOX.Test...
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******************************************************************************/
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function sqimap_get_delimiter ($imap_stream = false) {
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global $sqimap_delimiter;
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global $optional_delimiter;
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/* Use configured delimiter if set */
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if((!empty($optional_delimiter)) && $optional_delimiter != 'detect') {
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return $optional_delimiter;
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}
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/* Do some caching here */
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if (!$sqimap_delimiter) {
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if (sqimap_capability($imap_stream, 'NAMESPACE')) {
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/* According to something that I can't find, this is supposed to work on all systems
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OS: This won't work in Courier IMAP.
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OS: According to rfc2342 response from NAMESPACE command is:
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OS: * NAMESPACE (PERSONAL NAMESPACES) (OTHER_USERS NAMESPACE) (SHARED NAMESPACES)
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OS: We want to lookup all personal NAMESPACES...
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*/
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$read = sqimap_run_command($imap_stream, 'NAMESPACE', true, $a, $b);
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if (eregi('\\* NAMESPACE +(\\( *\\(.+\\) *\\)|NIL) +(\\( *\\(.+\\) *\\)|NIL) +(\\( *\\(.+\\) *\\)|NIL)', $read[0], $data)) {
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if (eregi('^\\( *\\((.*)\\) *\\)', $data[1], $data2)) {
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$pn = $data2[1];
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}
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$pna = explode(')(', $pn);
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while (list($k, $v) = each($pna)) {
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$lst = explode('"', $v);
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if (isset($lst[3])) {
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$pn[$lst[1]] = $lst[3];
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} else {
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$pn[$lst[1]] = '';
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}
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}
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}
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$sqimap_delimiter = $pn[0];
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} else {
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fputs ($imap_stream, ". LIST \"INBOX\" \"\"\r\n");
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$read = sqimap_read_data($imap_stream, '.', true, $a, $b);
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$quote_position = strpos ($read[0], '"');
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$sqimap_delimiter = substr ($read[0], $quote_position+1, 1);
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}
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}
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return $sqimap_delimiter;
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}
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/*
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* Gets the number of messages in the current mailbox.
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*/
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function sqimap_get_num_messages ($imap_stream, $mailbox) {
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$read_ary = sqimap_run_command ($imap_stream, " EXAMINE \"$mailbox\"", true, $result, $message);
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for ($i = 0; $i < count($read_ary); $i++) {
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if (ereg("[^ ]+ +([^ ]+) +EXISTS", $read_ary[$i], $regs)) {
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return $regs[1];
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}
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}
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return sprintf( "BUG! Couldn't get number of messages in %s!", $mailbox );
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}
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/*
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* Returns a displayable email address
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*/
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function sqimap_find_email ($string) {
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/** Luke Ehresman <lehresma@css.tayloru.edu>
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** <lehresma@css.tayloru.edu>
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** lehresma@css.tayloru.edu
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**
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** What about
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** lehresma@css.tayloru.edu (Luke Ehresman)
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**/
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if (ereg("<([^>]+)>", $string, $regs)) {
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$string = $regs[1];
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}
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return trim($string);
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}
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/*
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* Takes the From: field, and creates a displayable name.
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* Luke Ehresman <lkehresman@yahoo.com>
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* "Luke Ehresman" <lkehresman@yahoo.com>
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* lkehresman@yahoo.com (Luke Ehresman)
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* become: Luke Ehresman
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* <lkehresman@yahoo.com>
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* becomes: lkehresman@yahoo.com
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*/
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function sqimap_find_displayable_name ($string) {
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$string = trim($string);
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if ( ereg('^(.+)<.*>', $string, $regs) ) {
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$string = ereg_replace ('"', '', $regs[1] );
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}
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elseif ( ereg('\((.*)\)', $string, $regs) ) {
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if( ( $regs[1] == '' ) || ( $regs[1] == ' ' ) ){
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if ( ereg('^(.+) \(', $string, $regs) ) {
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$string = ereg_replace( ' \(\)$', '', $string );
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} else {
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$string = ' ';
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}
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} else {
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$string = $regs[1];
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}
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}
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else {
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$string = sqimap_find_email($string);
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}
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return trim($string);
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}
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/*
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* Returns the number of unseen messages in this folder
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*/
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function sqimap_unseen_messages ($imap_stream, $mailbox) {
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//fputs ($imap_stream, sqimap_session_id() . " SEARCH UNSEEN NOT DELETED\r\n");
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$read_ary = sqimap_run_command ($imap_stream, " STATUS \"$mailbox\" (UNSEEN)", true, $result, $message);
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ereg("UNSEEN ([0-9]+)", $read_ary[0], $regs);
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return $regs[1];
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}
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/*
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* Saves a message to a given folder -- used for saving sent messages
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*/
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function sqimap_append ($imap_stream, $sent_folder, $length) {
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fputs ($imap_stream, sqimap_session_id() . " APPEND \"$sent_folder\" (\\Seen) \{$length}\r\n");
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$tmp = fgets ($imap_stream, 1024);
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}
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function sqimap_append_done ($imap_stream) {
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fputs ($imap_stream, "\r\n");
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$tmp = fgets ($imap_stream, 1024);
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}
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?>
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