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<?php |
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/** |
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* Copyright 2017 Facebook, Inc. |
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* |
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* You are hereby granted a non-exclusive, worldwide, royalty-free license to |
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* use, copy, modify, and distribute this software in source code or binary |
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* form for use in connection with the web services and APIs provided by |
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* Facebook. |
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* |
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* As with any software that integrates with the Facebook platform, your use |
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* of this software is subject to the Facebook Developer Principles and |
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* Policies [http://developers.facebook.com/policy/]. This copyright notice |
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* shall be included in all copies or substantial portions of the software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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* DEALINGS IN THE SOFTWARE. |
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* |
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*/ |
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namespace Facebook\PseudoRandomString; |
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use Facebook\Exceptions\FacebookSDKException; |
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class McryptPseudoRandomStringGenerator implements PseudoRandomStringGeneratorInterface |
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{ |
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use PseudoRandomStringGeneratorTrait; |
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/** |
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* @const string The error message when generating the string fails. |
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*/ |
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const ERROR_MESSAGE = 'Unable to generate a cryptographically secure pseudo-random string from mcrypt_create_iv(). '; |
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/** |
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* @throws FacebookSDKException |
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*/ |
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public function __construct() |
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{ |
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if (!function_exists('mcrypt_create_iv')) { |
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throw new FacebookSDKException( |
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static::ERROR_MESSAGE . |
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'The function mcrypt_create_iv() does not exist.' |
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); |
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} |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getPseudoRandomString($length) |
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{ |
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$this->validateLength($length); |
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$binaryString = mcrypt_create_iv($length, MCRYPT_DEV_URANDOM); |
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if ($binaryString === false) { |
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throw new FacebookSDKException( |
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static::ERROR_MESSAGE . |
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'mcrypt_create_iv() returned an error.' |
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); |
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} |
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return $this->binToHex($binaryString, $length); |
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} |
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} |
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JuKu /
JuKuCMS
This function has been deprecated. The supplier of the function has supplied an explanatory message.
The explanatory message should give you some clue as to whether and when the function will be removed and what other function to use instead.