<?php
/*
 * Copyright 2008-2010 GuardTime AS
 *
 * This file is part of the GuardTime PHP SDK.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @package asn1
 */

/**
 * ASN.1 IA5String implementation.
 *
 * @package asn1
 */
class ASN1IA5String extends ASN1String {

    /**
     * Sets the value of this IA5String.
     *
     * Only ASCII 0 - 127 are allowed.
     *
     * @throws GTException
     * @param  string $value the value
     * @return void
     */
    protected function setValue($value) {

        for ($i = 0; $i < strlen($value); $i++) {
            $byte = ord($value{$i});

            if ($byte < 0 || $byte > 127) {
                throw new GTException("Invalid value in IA5String: {$byte}");
            }

        }

        $this->value = $value;
    }

    /**
     * Gets the ASN.1 type tag for this string.
     *
     * @return int ASN1_TAG_IA5_STRING
     */
    protected function getType() {
        return ASN1_TAG_IA5_STRING;
    }
}

?>