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@@ -29,6 +29,10 @@
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*/
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class Zend_Ldap_Converter
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{
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+ const STANDARD = 0;
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+ const BOOLEAN = 1;
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+ const GENERALIZED_TIME = 2;
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+
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/**
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* Converts all ASCII chars < 32 to "\HEX"
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*
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@@ -68,4 +72,325 @@ class Zend_Ldap_Converter
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$string = preg_replace("/\\\([0-9A-Fa-f]{2})/e", "''.chr(hexdec('\\1')).''", $string);
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return $string;
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}
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+
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+ /**
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+ * Convert any value to an LDAP-compatible value.
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+ *
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+ * By setting the <var>$type</var>-parameter the conversion of a certain
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+ * type can be forced
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+ *
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+ * @todo write more tests
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+ *
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+ * @param mixed $value The value to convert
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+ * @param int $ytpe The conversion type to use
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+ * @return string
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+ * @throws Zend_Ldap_Converter_Exception
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+ */
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+ public static function toLdap($value, $type = self::STANDARD)
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+ {
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+ try {
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+ switch ($type) {
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+ case self::BOOLEAN:
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+ return self::toldapBoolean($value);
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+ break;
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+ case self::GENERALIZED_TIME:
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+ return self::toLdapDatetime($value);
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+ break;
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+ default:
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+ if (is_string($value)) {
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+ return $value;
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+ } else if (is_int($value) || is_float($value)) {
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+ return (string)$value;
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+ } else if (is_bool($value)) {
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+ return self::toldapBoolean($value);
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+ } else if (is_object($value)) {
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+ if ($value instanceof DateTime) {
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+ return self::toLdapDatetime($value);
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+ } else if ($value instanceof Zend_Date) {
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+ return self::toLdapDatetime($value);
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+ } else {
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+ return self::toLdapSerialize($value);
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+ }
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+ } else if (is_array($value)) {
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+ return self::toLdapSerialize($value);
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+ } else if (is_resource($value) && get_resource_type($value) === 'stream') {
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+ return stream_get_contents($value);
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+ } else {
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+ return null;
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+ }
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+ break;
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+ }
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+ } catch (Exception $e) {
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+ throw new Zend_Ldap_Converter_Exception($e->getMessage(), $e->getCode(), $e);
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+ }
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+ }
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+
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+ /**
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+ * Converts a date-entity to an LDAP-compatible date-string
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+ *
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+ * The date-entity <var>$date</var> can be either a timestamp, a
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+ * DateTime Object, a string that is parseable by strtotime() or a Zend_Date
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+ * Object.
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+ *
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+ * @param integer|string|DateTimt|Zend_Date $date The date-entity
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+ * @param boolean $asUtc Whether to return the LDAP-compatible date-string
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+ * as UTC or as local value
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+ * @return string
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+ * @throws InvalidArgumentException
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+ */
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+ public static function toLdapDateTime($date, $asUtc = true)
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+ {
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+ if (!($date instanceof DateTime)) {
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+ if (is_int($date)) {
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+ $date = new DateTime('@' . $date);
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+ $date->setTimezone(new DateTimeZone(date_default_timezone_get()));
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+ } else if (is_string($date)) {
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+ $date = new DateTime($date);
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+ } else if ($date instanceof Zend_Date) {
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+ $date = new DateTime($date->get(Zend_Date::ISO_8601));
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+ } else {
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+ throw new InvalidArgumentException('Parameter $date is not of the expected type');
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+ }
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+ }
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+ $timezone = $date->format('O');
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+ if (true === $asUtc) {
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+ $date->setTimezone(new DateTimeZone('UTC'));
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+ $timezone = 'Z';
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+ }
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+ if ( '+0000' === $timezone ) {
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+ $timezone = 'Z';
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+ }
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+ return $date->format('YmdHis') . $timezone;
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+ }
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+
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+ /**
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+ * Convert a boolean value to an LDAP-compatible string
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+ *
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+ * This converts a boolean value of TRUE, an integer-value of 1 and a
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+ * case-insensitive string 'true' to an LDAP-compatible 'TRUE'. All other
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+ * other values are converted to an LDAP-compatible 'FALSE'.
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+ *
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+ * @param boolean|integer|string $value The boolean value to encode
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+ * @return string
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+ */
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+ public static function toLdapBoolean($value)
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+ {
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+ $return = 'FALSE';
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+ if (!is_scalar($value)) {
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+ return $return;
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+ }
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+ if (true === $value || 'true' === strtolower($value) || 1 === $value) {
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+ $return = 'TRUE';
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+ }
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+ return $return;
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+ }
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+
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+ /**
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+ * Serialize any value for storage in LDAP
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+ *
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+ * @param mixed $value The value to serialize
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+ * @return string
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+ */
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+ public static function toLdapSerialize($value)
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+ {
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+ return serialize($value);
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+ }
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+
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+ /**
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+ * Convert an LDAP-compatible value to a corresponding PHP-value.
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+ *
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+ * By setting the <var>$type</var>-parameter the conversion of a certain
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+ * type can be forced
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+ * .
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+ * @param string $value The value to convert
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+ * @param int $ytpe The conversion type to use
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+ * @param boolean $dateTimeAsUtc Return DateTime values in UTC timezone
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+ * @return mixed
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+ * @throws Zend_Ldap_Converter_Exception
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+ */
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+ public static function fromLdap($value, $type = self::STANDARD, $dateTimeAsUtc = true)
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+ {
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+ switch ($type) {
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+ case self::BOOLEAN:
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+ return self::fromldapBoolean($value);
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+ break;
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+ case self::GENERALIZED_TIME:
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+ return self::fromLdapDateTime($value);
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+ break;
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+ default:
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+ if (is_numeric($value)) {
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+ return (float)$value;
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+ } else if ('TRUE' === $value || 'FALSE' === $value) {
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+ return self::fromLdapBoolean($value);
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+ }
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+ if (preg_match('/^\d{4}[\d\+\-Z\.]*$/', $value)) {
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+ return self::fromLdapDateTime($value, $dateTimeAsUtc);
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+ }
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+ try {
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+ return self::fromLdapUnserialize($value);
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+ } catch (UnexpectedValueException $e) { }
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+ break;
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+ }
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+ return $value;
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+ }
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+
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+ /**
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+ * Convert an LDAP-Generalized-Time-entry into a DateTime-Object
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+ *
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+ * CAVEAT: The DateTime-Object returned will alwasy be set to UTC-Timezone.
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+ *
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+ * @param string $date The generalized-Time
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+ * @param boolean $asUtc Return the DateTime with UTC timezone
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+ * @return DateTime
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+ * @throws InvalidArgumentException if a non-parseable-format is given
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+ */
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+ public static function fromLdapDateTime($date, $asUtc = true)
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+ {
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+ $datepart = array ();
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+ if (!preg_match('/^(\d{4})/', $date, $datepart) ) {
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+ throw new InvalidArgumentException('Invalid date format found');
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+ }
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+
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+ if ($datepart[1] < 4) {
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+ throw new InvalidArgumentException('Invalid date format found (too short)');
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+ }
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+
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+ $time = array (
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+ // The year is mandatory!
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+ 'year' => $datepart[1],
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+ 'month' => 1,
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+ 'day' => 1,
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+ 'hour' => 0,
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+ 'minute' => 0,
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+ 'second' => 0,
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+ 'offdir' => '+',
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+ 'offsethours' => 0,
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+ 'offsetminutes' => 0
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+ );
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+
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+ $length = strlen($date);
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+
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+ // Check for month.
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+ if ($length >= 6) {
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+ $month = substr($date, 4, 2);
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+ if ($month < 1 || $month > 12) {
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+ throw new InvalidArgumentException('Invalid date format found (invalid month)');
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+ }
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+ $time['month'] = $month;
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+ }
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+
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+ // Check for day
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+ if ($length >= 8) {
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+ $day = substr($date, 6, 2);
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+ if ($day < 1 || $day > 31) {
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+ throw new InvalidArgumentException('Invalid date format found (invalid day)');
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+ }
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+ $time['day'] = $day;
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+ }
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+
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+ // Check for Hour
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+ if ($length >= 10) {
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+ $hour = substr($date, 8, 2);
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+ if ($hour < 0 || $hour > 23) {
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+ throw new InvalidArgumentException('Invalid date format found (invalid hour)');
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+ }
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+ $time['hour'] = $hour;
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+ }
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+
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+ // Check for minute
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+ if ($length >= 12) {
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+ $minute = substr($date, 10, 2);
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+ if ($minute < 0 || $minute > 59) {
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+ throw new InvalidArgumentException('Invalid date format found (invalid minute)');
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+ }
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+ $time['minute'] = $minute;
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+ }
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+
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+ // Check for seconds
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+ if ($length >= 14) {
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+ $second = substr($date, 12, 2);
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+ if ($second < 0 || $second > 59) {
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+ throw new InvalidArgumentException('Invalid date format found (invalid second)');
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+ }
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+ $time['second'] = $second;
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+ }
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+
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+ // Set Offset
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+ $offsetRegEx = '/([Z\-\+])(\d{2}\'?){0,1}(\d{2}\'?){0,1}$/';
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+ $off = array ();
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+ if (preg_match($offsetRegEx, $date, $off)) {
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+ $offset = $off[1];
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+ if ($offset == '+' || $offset == '-') {
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+ $time['offdir'] = $offset;
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+ // we have an offset, so lets calculate it.
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+ if (isset($off[2])) {
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+ $offsetHours = substr($off[2], 0, 2);
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+ if ($offsetHours < 0 || $offsetHours > 12) {
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+ throw new InvalidArgumentException('Invalid date format found (invalid offset hour)');
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+ }
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+ $time['offsethours'] = $offsetHours;
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+ }
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+ if (isset($off[3])) {
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+ $offsetMinutes = substr($off[3], 0, 2);
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+ if ($offsetMinutes < 0 || $offsetMinutes > 59) {
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+ throw new InvalidArgumentException('Invalid date format found (invalid offset minute)');
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+ }
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+ $time['offsetminutes'] = $offsetMinutes;
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+ }
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+ }
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+ }
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+
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+ // Raw-Data is present, so lets create a DateTime-Object from it.
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+ $offset = $time['offdir']
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+ . str_pad($time['offsethours'],2,'0',STR_PAD_LEFT)
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+ . str_pad($time['offsetminutes'],2,'0',STR_PAD_LEFT);
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+ $timestring = $time['year'] . '-'
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+ . str_pad($time['month'], 2, '0', STR_PAD_LEFT) . '-'
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+ . str_pad($time['day'], 2, '0', STR_PAD_LEFT) . ' '
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+ . str_pad($time['hour'], 2, '0', STR_PAD_LEFT) . ':'
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+ . str_pad($time['minute'], 2, '0', STR_PAD_LEFT) . ':'
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+ . str_pad($time['second'], 2, '0', STR_PAD_LEFT)
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+ . $time['offdir']
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+ . str_pad($time['offsethours'], 2, '0', STR_PAD_LEFT)
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+ . str_pad($time['offsetminutes'], 2, '0', STR_PAD_LEFT);
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+ $date = new DateTime($timestring);
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+ if ($asUtc) {
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+ $date->setTimezone(new DateTimeZone('UTC'));
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+ }
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+ return $date;
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+ }
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+
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+ /**
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+ * Convert an LDAP-compatible boolean value into a PHP-compatible one
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+ *
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+ * @param string $value The value to convert
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+ * @return boolean
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+ * @throws InvalidArgumentException
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+ */
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+ public static function fromLdapBoolean($value)
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+ {
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+ if ( 'TRUE' === $value ) {
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+ return true;
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+ } else if ( 'FALSE' === $value ) {
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+ return false;
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+ } else {
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+ throw new InvalidArgumentException('The given value is not a boolean value');
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+ }
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+ }
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+
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+ /**
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+ * Unserialize a serialized value to return the corresponding object
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+ *
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+ * @param string $value The value to convert
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+ * @return mixed
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+ * @throws UnexpectedValueException
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+ */
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+ public static function fromLdapUnserialize($value)
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+ {
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+ $v = @unserialize($value);
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+ if (false===$v && $value != 'b:0;') {
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+ throw new UnexpectedValueException('The given value could not be unserialized');
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+ }
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+ return $v;
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+ }
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}
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