<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@zend.com so we can send you a copy immediately.

 *

 * @category   Zend

 * @package    Zend_Service

 * @subpackage Rackspace

 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

require_once 'Zend/Service/Rackspace/Abstract.php';

require_once 'Zend/Service/Rackspace/Servers/Server.php';

require_once 'Zend/Service/Rackspace/Servers/ServerList.php';

require_once 'Zend/Service/Rackspace/Servers/Image.php';

require_once 'Zend/Service/Rackspace/Servers/ImageList.php';

require_once 'Zend/Service/Rackspace/Servers/SharedIpGroup.php';

require_once 'Zend/Service/Rackspace/Servers/SharedIpGroupList.php';

require_once 'Zend/Validate/Ip.php';

class Zend_Service_Rackspace_Servers extends Zend_Service_Rackspace_Abstract

{

    const LIMIT_FILE_SIZE           = 10240;

    const LIMIT_NUM_FILE            = 5;

    const ERROR_SERVICE_UNAVAILABLE = 'The service is unavailable';

    const ERROR_UNAUTHORIZED        = 'Unauthorized';

    const ERROR_OVERLIMIT           = 'You reached the limit of requests, please wait some time before retry';

    const ERROR_PARAM_NO_ID         = 'You must specify the item\'s id';

    const ERROR_PARAM_NO_NAME       = 'You must specify the name';

    const ERROR_PARAM_NO_SERVERID   = 'You must specify the server Id';

    const ERROR_PARAM_NO_IMAGEID    = 'You must specify the server\'s image ID';

    const ERROR_PARAM_NO_FLAVORID   = 'You must specify the server\'s flavor ID';

    const ERROR_PARAM_NO_ARRAY      = 'You must specify an array of parameters';

    const ERROR_PARAM_NO_WEEKLY     = 'You must specify a weekly backup schedule';

    const ERROR_PARAM_NO_DAILY      = 'You must specify a daily backup schedule';

    const ERROR_ITEM_NOT_FOUND      = 'The item specified doesn\'t exist.';

    const ERROR_NO_FILE_EXISTS      = 'The file specified doesn\'t exist';

    const ERROR_LIMIT_FILE_SIZE     = 'You reached the size length of a file';

    const ERROR_IN_PROGRESS         = 'The item specified is still in progress';

    const ERROR_BUILD_IN_PROGRESS   = 'The build is still in progress';

    const ERROR_RESIZE_NOT_ALLOWED  = 'The resize is not allowed';

    /**

     * Get the list of the servers

     * If $details is true returns detail info

     * 

     * @param  boolean $details

     * @return Zend_Service_Rackspace_Servers_ServerList|boolean

     */

    public function listServers($details=false)

    {

        $url= '/servers';

        if ($details) {

            $url.= '/detail';

        } 

        $result= $this->httpCall($this->getManagementUrl().$url,'GET');

        $status= $result->getStatus();

        switch ($status) {

            case '200' : 

            case '203' : // break intentionally omitted   

                $servers= json_decode($result->getBody(),true);

                return new Zend_Service_Rackspace_Servers_ServerList($this,$servers['servers']);

            case '503' :

                $this->errorMsg= self::ERROR_SERVICE_UNAVAILABLE;

                break;

            case '401' :

                $this->errorMsg= self::ERROR_UNAUTHORIZED;

                break;

            case '413' :

                $this->errorMsg= self::ERROR_OVERLIMIT;

                break;

            default:

                $this->errorMsg= $result->getBody();

                break;

        }

        $this->errorCode= $status;

        return false;

    }

    /**

     * Get the specified server

     * 

     * @param  string $id 

     * @return Zend_Service_Rackspace_Servers_Server

     */

    public function getServer($id) 

    {

        if (empty($id)) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception(self::ERROR_PARAM_NO_ID);

        }

        $result= $this->httpCall($this->getManagementUrl().'/servers/'.rawurlencode($id),'GET');

        $status= $result->getStatus();

        switch ($status) {

            case '200' : 

            case '203' : // break intentionally omitted   

                $server = json_decode($result->getBody(),true);

                return new Zend_Service_Rackspace_Servers_Server($this,$server['server']);

            case '503' :

                $this->errorMsg= self::ERROR_SERVICE_UNAVAILABLE;

                break;

            case '401' :

                $this->errorMsg= self::ERROR_UNAUTHORIZED;

                break;

            case '404' :

                $this->errorMsg= self::ERROR_ITEM_NOT_FOUND;

                break;

            case '413' :

                $this->errorMsg= self::ERROR_OVERLIMIT;

                break;

            default:

                $this->errorMsg= $result->getBody();

                break;

        }

        $this->errorCode= $status;

        return false;

    }

    /**

     * Create a new server

     * 

     * The required parameters are specified in $data (name, imageId, falvorId)

     * The $files is an associative array with 'serverPath' => 'localPath'

     * 

     * @param  array $data 

     * @param  array $metadata

     * @param  array $files

     * @return Zend_Service_Rackspace_Servers_Server|boolean

     */

    public function createServer(array $data, $metadata=array(),$files=array())

    {

        if (empty($data) || !is_array($data) || !is_array($metadata) || !is_array($files)) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception(self::ERROR_PARAM_NO_ARRAY);

        }

        if (!isset($data['name'])) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception(self::ERROR_PARAM_NO_NAME);

        }

        if (!isset($data['flavorId'])) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception(self::ERROR_PARAM_NO_FLAVORID);

        }

        if (!isset($data['imageId'])) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception(self::ERROR_PARAM_NO_IMAGEID);

        }

        if (count($files)>self::LIMIT_NUM_FILE) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception('You can attach '.self::LIMIT_NUM_FILE.' files maximum');

        }

        if (!empty($metadata)) {

            $data['metadata']= $metadata;

        }

        $data['flavorId']= (integer) $data['flavorId'];

        $data['imageId']= (integer) $data['imageId'];

        if (!empty($files)) {

            foreach ($files as $serverPath => $filePath) {

                if (!file_exists($filePath)) {

                    require_once 'Zend/Service/Rackspace/Exception.php';

                    throw new Zend_Service_Rackspace_Exception(

                            sprintf("The file %s doesn't exist",$filePath));

                }

                $content= file_get_contents($filePath);

                if (strlen($content) > self::LIMIT_FILE_SIZE) {

                    require_once 'Zend/Service/Rackspace/Exception.php';

                    throw new Zend_Service_Rackspace_Exception(

                            sprintf("The size of the file %s is greater than the max size of %d bytes",

                                    $filePath,self::LIMIT_FILE_SIZE));

                }

                $data['personality'][] = array (

                    'path'     => $serverPath,

                    'contents' => base64_encode(file_get_contents($filePath))

                );

            }

        }

        $result = $this->httpCall($this->getManagementUrl().'/servers','POST',

                null,null,json_encode(array ('server' => $data)));

        $status = $result->getStatus();

        switch ($status) {

            case '200' :

            case '202' : // break intentionally omitted   

                $server = json_decode($result->getBody(),true);

                return new Zend_Service_Rackspace_Servers_Server($this,$server['server']);

            case '503' :

                $this->errorMsg= self::ERROR_SERVICE_UNAVAILABLE;

                break;

            case '401' :

                $this->errorMsg= self::ERROR_UNAUTHORIZED;

                break;

            case '404' :

                $this->errorMsg= self::ERROR_ITEM_NOT_FOUND;

                break;

            case '413' :

                $this->errorMsg= self::ERROR_OVERLIMIT;

                break;

            default:

                $this->errorMsg= $result->getBody();

                break;

        }

        $this->errorCode= $status;

        return false;

    }

    /**

     * Change the name or the admin password for a server

     * 

     * @param  string $id

     * @param  string $name

     * @param  string $password

     * @return boolean 

     */

    protected function updateServer($id,$name=null,$password=null)

    {

        if (empty($id)) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception('You must specify the ID of the server');

        }

        if (empty($name) && empty($password)) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception("You must specify the new name or password of server");

        }

        $data= array();

        if (!empty($name)) {

            $data['name']= $name;

        }

        if (!empty($password)) {

            $data['adminPass']= $password;

        }

        $result = $this->httpCall($this->getManagementUrl().'/servers/'.rawurlencode($id),'PUT',

                null,null,json_encode(array('server' => $data)));

        $status = $result->getStatus();

        switch ($status) {

            case '204' : // break intentionally omitted   

                return true;

            case '503' :

                $this->errorMsg= self::ERROR_SERVICE_UNAVAILABLE;

                break;

            case '401' :

                $this->errorMsg= self::ERROR_UNAUTHORIZED;

                break;

            case '404' :

                $this->errorMsg= self::ERROR_ITEM_NOT_FOUND;

                break;

            case '409' :

                $this->errorMsg= self::ERROR_IN_PROGRESS;

                break;

            case '413' :

                $this->errorMsg= self::ERROR_OVERLIMIT;

                break;

            default:

                $this->errorMsg= $result->getBody();

                break;

        }

        $this->errorCode= $status;

        return false;

    }

    /**

     * Change the server's name

     * 

     * @param  string $id

     * @param  string $name

     * @return boolean 

     */

    public function changeServerName($id,$name)

    {

        if (empty($id)) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception('You must specify the ID of the server');

        }

        if (empty($name)) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception("You must specify the new name of the server");

        }

        return $this->updateServer($id, $name);

    }

    /**

     * Change the admin password of the server

     * 

     * @param  string $id

     * @param  string $password

     * @return boolean 

     */

    public function changeServerPassword($id,$password)

    {

        if (empty($id)) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception('You must specify the ID of the server');

        }

        if (empty($password)) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception("You must specify the new password of the server");

        }

        return $this->updateServer($id, null,$password);

    }

    /**

     * Delete a server

     * 

     * @param  string $id

     * @return boolean 

     */

    public function deleteServer($id)

    {

        if (empty($id)) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception('You must specify the ID of the server');

        }

        $result = $this->httpCall($this->getManagementUrl().'/servers/'.rawurlencode($id),'DELETE');

        $status = $result->getStatus();

        switch ($status) {

            case '202' : // break intentionally omitted   

                return true;

            case '503' :

                $this->errorMsg= self::ERROR_SERVICE_UNAVAILABLE;

                break;

            case '401' :

                $this->errorMsg= self::ERROR_UNAUTHORIZED;

                break;

            case '404' :

                $this->errorMsg= self::ERROR_ITEM_NOT_FOUND;

                break;

            case '409' :

                $this->errorMsg= self::ERROR_IN_PROGRESS;

                break;

            case '413' :

                $this->errorMsg= self::ERROR_OVERLIMIT;

                break;

            default:

                $this->errorMsg= $result->getBody();

                break;

        }

        $this->errorCode= $status;

        return false;

    }

    /**

     * Get the server's IPs (public and private)

     * 

     * @param  string $id

     * @return array|boolean 

     */

    public function getServerIp($id)

    {

        $result= $this->getServer($id);

        if ($result===false) {

            return false;

        }

        $result= $result->toArray();

        return $result['addresses'];

    }

    /**

     * Get the Public IPs of a server

     * 

     * @param  string $id

     * @return array|boolean

     */

    public function getServerPublicIp($id)

    {

        $addresses= $this->getServerIp($id);

        if ($addresses===false) {

            return false;

        }

        return $addresses['public'];

    }

    /**

     * Get the Private IPs of a server

     * 

     * @param  string $id

     * @return array|boolean

     */

    public function getServerPrivateIp($id)

    {

        $addresses= $this->getServerIp($id);

        if ($addresses===false) {

            return false;

        }

        return $addresses['private'];

    }

    /**

     * Share an ip address for a server (id)

     * 

     * @param  string $id server

     * @param  string $ip 

     * @param  string $groupId

     * @return boolean

     */

    public function shareIpAddress($id,$ip,$groupId,$configure=true)

    {

        if (empty($id)) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception('You didn\'t specified the ID of the server');

        }

        if (empty($ip)) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception('You didn\'t specified the IP address to share');

        }

        $validator = new Zend_Validate_Ip();

        if (!$validator->isValid($ip)) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception("The parameter $ip specified is not a valid IP address");

        }

        if (empty($groupId)) {

            require_once 'Zend/Service/Rackspace/Exception.php';

            throw new Zend_Service_Rackspace_Exception('You didn\'t specified the group id to use');

        }

        $data= array (

            'sharedIpGroupId' => (integer) $groupId,

            'configureServer' => $configure

        );

        $result = $this->httpCall($this->getManagementUrl().'/servers/'.rawurlencode($id).'/ips/public/'.rawurlencode($ip),'PUT',

                null,null,json_encode(array('shareIp' => $data)));

        $status = $result->getStatus();