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<?php
/**
* Copyright 2012-2014 Rackspace US, Inc.
*
* 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.
*/
namespace OpenCloud\Database\Resource;
use OpenCloud\Common\Exceptions;
use OpenCloud\Common\Lang;
use OpenCloud\Common\Resource\PersistentResource;
/**
* This class represents a User in the Rackspace "Red Dwarf"
* database-as-a-service product.
*/
class User extends PersistentResource
{
/** @var string The user name */
public $name;
/** @var string The user's password */
public $password;
/** @var array A list of database names assigned to the user */
public $databases = array();
protected static $json_name = 'user';
protected static $url_resource = 'users';
/**
* Creates a new database object
*
* Unlike other objects (Servers, DataObjects, etc.), passing a database
* name to the constructor does *not* pull information from the database.
* For example, if you pass an ID to the `Server()` constructor, it will
* attempt to retrieve the information on that server from the service,
* and will return an error if it is not found. However, the Cloud
* Users service does not permit retrieval of information on
* individual databases (only via Collection), and thus passing in a
* name via the `$info` parameter only creates an in-memory object that
* is not necessarily tied to an actual database.
*
* @param Instance $instance the parent DbService\Instance of the database
* @param mixed $info if an array or object, treated as properties to set;
* if a string, treated as the database name
* @param array $db a list of database names to associate with the User
* @return void
* @throws UserNameError if `$info` is not a string, object, or array
*/
public function __construct(Instance $instance, $info = null, $db = array())
{
$this->setParent($instance);
if (!empty($db)) {
$this->databases = $db;
}
// Lazy...
if (is_string($info)) {
$info = array('name' => $info);
}
return parent::__construct($instance->getService(), $info);
}
/**
* Returns name of this user. Because it's so important (i.e. as an
* identifier), it will throw an error if not set/empty.
*
* @return type
* @throws Exceptions\DatabaseNameError
*/
public function getName()
{
if (empty($this->name)) {
throw new Exceptions\DatabaseNameError(
Lang::translate('This user does not have a name yet')
);
}
return $this->name;
}
/**
* {@inheritDoc}
*/
public function primaryKeyField()
{
return 'name';
}
/**
* Adds a new database to the list of databases for the user
*
* @api
* @param string $dbname the database name to be added
* @return void
*/
public function addDatabase($dbname)
{
$this->databases[] = $dbname;
}
/**
* {@inheritDoc}
*/
public function update($params = array())
{
return $this->noUpdate();
}
/**
* Deletes a database user
*
* @api
* @return \OpenCloud\HttpResponse
* @throws UserDeleteError if HTTP response is not Success
*/
public function delete()
{
return $this->getClient()->delete($this->url())->send();
}
/**
* {@inheritDoc}
*/
protected function createJson()
{
$user = (object) array(
'name' => $this->name,
'password' => $this->password,
'databases' => array()
);
foreach ($this->databases as $dbName) {
$user->databases[] = (object) array('name' => $dbName);
}
return (object) array(
'users' => array($user)
);
}
/**
* Grant access to a set of one or more databases to a user.
*
* @param []string $databases An array of one or more database names that this user will be granted access to. For
* example, ['foo', 'bar'] or ['baz'] are valid inputs.
*
* @return \Guzzle\Http\Message\Response
*/
public function grantDbAccess(array $databases)
{
$json = [];
foreach ($databases as $database) {
$json[] = ['name' => $database];
}
$json = ['databases' => $json];
$url = $this->getUrl('databases');
$headers = self::getJsonHeader();
$body = json_encode($json);
return $this->getClient()->put($url, $headers, $body)->send();
}
}