+
+ /**
+ * Checks whether the given encoded data was encoded with Base64
+ *
+ * @param $encodedData Encoded data we shall check
+ * @return $isBase64 Whether the encoded data is Base64
+ */
+ protected function isBase64Encoded ($encodedData) {
+ // Determine it
+ $isBase64 = (@base64_decode($encodedData, true) !== false);
+
+ // Return it
+ return $isBase64;
+ }
+
+ /**
+ * "Getter" to get response/request type from analysis of the system.
+ *
+ * @return $responseType Analyzed response type
+ */
+ protected function getResponseTypeFromSystem () {
+ // Default is console
+ $responseType = 'console';
+
+ // Is 'HTTP_HOST' set?
+ if (isset($_SERVER['HTTP_HOST'])) {
+ // Then it is a HTTP response/request
+ $responseType = 'http';
+ } // END - if
+
+ // Return it
+ return $responseType;
+ }
+
+ /**
+ * Gets a cache key from Criteria instance
+ *
+ * @param $criteriaInstance An instance of a Criteria class
+ * @param $onlyKeys Only use these keys for a cache key
+ * @return $cacheKey A cache key suitable for lookup/storage purposes
+ */
+ protected function getCacheKeyByCriteria (Criteria $criteriaInstance, array $onlyKeys = array()) {
+ // Generate it
+ $cacheKey = sprintf("%s@%s",
+ $this->__toString(),
+ $criteriaInstance->getCacheKey($onlyKeys)
+ );
+
+ // And return it
+ //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput($this->__toString() . ': cacheKey=' . $cacheKey);
+ return $cacheKey;
+ }
+
+ /**
+ * Getter for startup time in miliseconds
+ *
+ * @return $startupTime Startup time in miliseconds
+ */
+ protected function getStartupTime () {
+ return self::$startupTime;
+ }
+
+ /**
+ * "Getter" for a printable currently execution time in nice braces
+ *
+ * @return $executionTime Current execution time in nice braces
+ */
+ protected function getPrintableExecutionTime () {
+ // Caculate the execution time
+ $executionTime = microtime(true) - $this->getStartupTime();
+
+ // Pack it in nice braces
+ $executionTime = sprintf('[ %01.5f ] ', $executionTime);
+
+ // And return it
+ return $executionTime;
+ }
+
+ /**
+ * Hashes a given string with a simple but stronger hash function (no salts)
+ *
+ * @param $str The string to be hashed
+ * @return $hash The hash from string $str
+ */
+ public function hashString ($str) {
+ // Hash given string with (better secure) hasher
+ $hash = mhash(MHASH_SHA256, $str);
+
+ // Return it
+ return $hash;
+ }
+
+ /**
+ * Checks whether the given number is really a number (only chars 0-9).
+ *
+ * @param $num A string consisting only chars between 0 and 9
+ * @param $castValue Whether to cast the value to double. Do only use this to secure numbers from Requestable classes.
+ * @param $assertMismatch Whether to assert mismatches
+ * @return $ret The (hopefully) secured numbered value
+ */
+ public function bigintval ($num, $castValue = true, $assertMismatch = false) {
+ // Filter all numbers out
+ $ret = preg_replace('/[^0123456789]/', '', $num);
+
+ // Shall we cast?
+ if ($castValue === true) {
+ // Cast to biggest numeric type
+ $ret = (double) $ret;
+ } // END - if
+
+ // Assert only if requested
+ if ($assertMismatch === true) {
+ // Has the whole value changed?
+ assert(('' . $ret . '' != '' . $num . '') && (!is_null($num)));
+ } // END - if
+
+ // Return result
+ return $ret;
+ }
+
+ /**
+ * Checks whether the given hexadecimal number is really a hex-number (only chars 0-9,a-f).
+ *
+ * @param $num A string consisting only chars between 0 and 9
+ * @param $assertMismatch Whether to assert mismatches
+ * @return $ret The (hopefully) secured hext-numbered value
+ */
+ public function hexval ($num, $assertMismatch = false) {
+ // Filter all numbers out
+ $ret = preg_replace('/[^0123456789abcdefABCDEF]/', '', $num);
+
+ // Assert only if requested
+ if ($assertMismatch === true) {
+ // Has the whole value changed?
+ assert(('' . $ret . '' != '' . $num . '') && (!is_null($num)));
+ } // END - if
+
+ // Return result
+ return $ret;
+ }
+
+ /**
+ * Checks whether start/end marker are set
+ *
+ * @param $data Data to be checked
+ * @return $isset Whether start/end marker are set
+ */
+ public final function ifStartEndMarkersSet ($data) {
+ // Determine it
+ $isset = ((substr($data, 0, strlen(BaseRawDataHandler::STREAM_START_MARKER)) == BaseRawDataHandler::STREAM_START_MARKER) && (substr($data, -1 * strlen(BaseRawDataHandler::STREAM_END_MARKER), strlen(BaseRawDataHandler::STREAM_END_MARKER)) == BaseRawDataHandler::STREAM_END_MARKER));
+
+ // ... and return it
+ return $isset;
+ }