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<?php |
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/* |
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* This file is part of the CRUDlexUser package. |
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* |
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* (c) Philip Lehmann-Böhm <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace CRUDlex; |
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use CRUDlex\UserSetup; |
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/** |
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* This class offers some features to implement a password reset flow. |
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*/ |
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class PasswordReset { |
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/** |
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* Holds the user Data instance. |
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*/ |
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protected $userData; |
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/** |
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* Holds the password reset Data instance. |
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*/ |
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protected $passwordResetData; |
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/** |
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* Gets the password reset of a token but only if it is younger than 48h. |
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* |
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* @param string $token |
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* the password reset token |
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* |
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* @return null|CRUDlex\Entity |
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* the password reset request |
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*/ |
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protected function getValidPasswordReset($token) { |
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$passwordResets = $this->passwordResetData->listEntries(array('token' => $token)); |
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if (count($passwordResets) !== 1) { |
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return null; |
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} |
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$passwordReset = $passwordResets[0]; |
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$createdAt = $passwordReset->get('created_at'); |
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if (strtotime($createdAt . ' UTC') < time() - 2 * 24 * 60 * 60 || $passwordReset->get('reset')) { |
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return null; |
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} |
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return $passwordReset; |
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} |
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/** |
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* Constructor. |
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* |
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* @param CRUDlex\Data $userData |
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* the user data instance |
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* @param CRUDlex\Data $passwordResetData |
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* the password reset data instance |
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*/ |
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public function __construct($userData, $passwordResetData) { |
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$this->userData = $userData; |
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$this->passwordResetData = $passwordResetData; |
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} |
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/** |
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* Creates a password reset request. |
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* |
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* @param string $identifyingField |
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* the identifying field to grab an user, likely the email |
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* @param string $identifyingValue |
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* the identifying value to grab an user, likely the email |
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* |
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* @return null|string |
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* the token of the password reset instance ready to be send to the user via |
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* a secondary channel like email; might be null if the user could not be |
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* identified uniquly via the given parameters: either zero or more than one |
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* users were found |
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*/ |
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public function requestPasswordReset($identifyingField, $identifyingValue) { |
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$users = $this->userData->listEntries(array($identifyingField => $identifyingValue)); |
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if (count($users) !== 1) { |
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return null; |
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} |
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$user = $users[0]; |
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$userSetup = new UserSetup(); |
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do { |
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$token = $userSetup->getSalt(32); |
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$tokenFound = $this->passwordResetData->countBy($this->passwordResetData->getDefinition()->getTable(), array('token' => $token), array('token' => '='), true) === 0; |
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} while (!$tokenFound); |
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$passwordReset = $this->passwordResetData->createEmpty(); |
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$passwordReset->set('user', $user->get('id')); |
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$passwordReset->set('token', $token); |
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$this->passwordResetData->create($passwordReset); |
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return $token; |
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} |
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/** |
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* Resets the password of an user belonging to the given password reset |
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* token. |
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* |
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* @param string $token |
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* the password reset token |
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* @param string $newPassword |
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* the new password |
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* |
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* @return boolean |
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* true on success, false on failure with one of this reasons: |
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* - no or more than one password reset request found for this token |
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* - the password request for this token is older than 48h |
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* - the password request for this token has already been used |
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*/ |
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public function resetPassword($token, $newPassword) { |
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$passwordReset = $this->getValidPasswordReset($token); |
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if ($passwordReset === null) { |
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return false; |
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} |
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$user = $this->userData->get($passwordReset->get('user')); |
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$user->set('password', $newPassword); |
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$this->userData->update($user); |
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$reset = gmdate('Y-m-d H:i:s'); |
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$passwordReset->set('reset', $reset); |
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$this->passwordResetData->update($passwordReset); |
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return true; |
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} |
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} |
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philiplb /
CRUDlexUser
