_getMatches($lang, $wordstr); $words = array(); for ($i=0; $i_unhtmlentities(mb_substr($wordstr, $matches[$i][1], $matches[$i][2], "UTF-8")); return $words; } /** * Returns suggestions of for a specific word. * * @param {String} $lang Language code like sv or en. * @param {String} $word Specific word to get suggestions for. * @return {Array} Array of suggestions for the specified word. */ function &getSuggestions($lang, $word) { $sug = array(); $osug = array(); $matches = $this->_getMatches($lang, $word); if (count($matches) > 0) $sug = explode("\t", $this->_unhtmlentities($matches[0][4])); // Remove empty foreach ($sug as $item) { if ($item) $osug[] = $item; } return $osug; } function &_getMatches($lang, $str) { $lang = preg_replace('/[^a-z\-]/i', '', $lang); // Sanitize, remove everything but a-z or - $str = preg_replace('/[\x00-\x1F\x7F]/', '', $str); // Sanitize, remove all control characters $server = "www.google.com"; $port = 443; $path = "/tbproxy/spell?lang=" . $lang . "&hl=en"; $host = "www.google.com"; $url = "https://" . $server; // Setup XML request $xml = '' . $str . ''; $header = "POST ".$path." HTTP/1.0 \r\n"; $header .= "MIME-Version: 1.0 \r\n"; $header .= "Content-type: application/PTI26 \r\n"; $header .= "Content-length: ".strlen($xml)." \r\n"; $header .= "Content-transfer-encoding: text \r\n"; $header .= "Request-number: 1 \r\n"; $header .= "Document-type: Request \r\n"; $header .= "Interface-Version: Test 1.4 \r\n"; $header .= "Connection: close \r\n\r\n"; $header .= $xml; // Use curl if it exists if (function_exists('curl_init')) { // Use curl $ch = curl_init(); curl_setopt($ch, CURLOPT_URL,$url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $header); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); if (!empty($this->_config['GoogleSpell.proxyhost'])) { if (!empty($this->_config['GoogleSpell.proxytype']) and ($this->_config['GoogleSpell.proxytype'] === 'SOCKS5')) { curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5); } else { curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTML); curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, FALSE); } if (empty($this->_config['GoogleSpell.proxyport'])) { curl_setopt($ch, CURLOPT_PROXY, $this->_config['GoogleSpell.proxyhost']); } else { curl_setopt($ch, CURLOPT_PROXY, $this->_config['GoogleSpell.proxyhost'].':'.$this->_config['GoogleSpell.proxyport']); } if (!empty($this->_config['GoogleSpell.proxyuser']) and !empty($this->_config['GoogleSpell.proxypassword'])) { curl_setopt($ch, CURLOPT_PROXYUSERPWD, $this->_config['GoogleSpell.proxyuser'].':'.$this->_config['GoogleSpell.proxypassword']); if (defined('CURLOPT_PROXYAUTH')) { // any proxy authentication if PHP 5.1 curl_setopt($ch, CURLOPT_PROXYAUTH, CURLAUTH_BASIC | CURLAUTH_NTLM); } } } $xml = curl_exec($ch); curl_close($ch); } else { // Use raw sockets $fp = fsockopen("ssl://" . $server, $port, $errno, $errstr, 30); if ($fp) { // Send request fwrite($fp, $header); // Read response $xml = ""; while (!feof($fp)) $xml .= fgets($fp, 128); fclose($fp); } else echo "Could not open SSL connection to google."; } // Grab and parse content $matches = array(); preg_match_all('/([^<]*)<\/c>/', $xml, $matches, PREG_SET_ORDER); return $matches; } function _unhtmlentities($string) { return core_text::entities_to_utf8($string); // Moodle hack $string = preg_replace('~&#x([0-9a-f]+);~ei', 'chr(hexdec("\\1"))', $string); $string = preg_replace('~&#([0-9]+);~e', 'chr(\\1)', $string); $trans_tbl = get_html_translation_table(HTML_ENTITIES); $trans_tbl = array_flip($trans_tbl); return strtr($string, $trans_tbl); } } // Patch in multibyte support if (!function_exists('mb_substr')) { function mb_substr($str, $start, $len = '', $encoding="UTF-8"){ $limit = strlen($str); for ($s = 0; $start > 0;--$start) {// found the real start if ($s >= $limit) break; if ($str[$s] <= "\x7F") ++$s; else { ++$s; // skip length while ($str[$s] >= "\x80" && $str[$s] <= "\xBF") ++$s; } } if ($len == '') return substr($str, $s); else for ($e = $s; $len > 0; --$len) {//found the real end if ($e >= $limit) break; if ($str[$e] <= "\x7F") ++$e; else { ++$e;//skip length while ($str[$e] >= "\x80" && $str[$e] <= "\xBF" && $e < $limit) ++$e; } } return substr($str, $s, $e - $s); } } ?>