<?php
/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */
class Credential extends AbstractCredential
{
    private $dateTimeFormat = 'Y-m-d\TH:i:s\Z';
    private $refreshDate;
    private $expiredDate;
    private $accessKeyId;
    private $accessSecret;
    private $securityToken;
    
    public function __construct($accessKeyId, $accessSecret, $securityToken)
    {
        $this->accessKeyId = $accessKeyId;
        $this->accessSecret = $accessSecret;
        $this->securityToken = $securityToken;
        $this->refreshDate = date($this->dateTimeFormat);
    }
    
    public function isExpired()
    {
        if ($this->expiredDate == null) {
            return false;
        }
        if (strtotime($this->expiredDate)>strtotime(date($this->dateTimeFormat))) {
            return false;
        }
        return true;
    }
    
    public function getRefreshDate()
    {
        return $this->refreshDate;
    }
    
    public function getExpiredDate()
    {
        return $this->expiredDate;
    }
    
    public function setExpiredDate($expiredHours)
    {
        if ($expiredHours>0) {
            return $this->expiredDate = date($this->dateTimeFormat, strtotime("+".$expiredHours." hour"));
        }
    }
    
    public function getAccessKeyId()
    {
        return $this->accessKeyId;
    }
    
    public function setAccessKeyId($accessKeyId)
    {
        $this->accessKeyId = $accessKeyId;
    }
    
    public function getAccessSecret()
    {
        return $this->accessSecret;
    }
    
    public function setAccessSecret($accessSecret)
    {
        $this->accessSecret = $accessSecret;
    }

    public function getSecurityToken()
    {
        return $this->securityToken;
    }

    public function setSecurityToken($securityToken)
    {
        $this->securityToken = $securityToken;
    }
}