[Problem]Login Authentication

Hi, i have a table called usuarios used to store my users infos, i’m using password helper to generate a hash of user password. On my UserIdenity the same helper is used to compare the password when the user is trying to login. My problem is, the hashs generated by helper aren’t the same, so the user cannot login, i tried with md5 or sha1, the same problem, but when the password is saved without encryption it works.

Any idea?

My codes:




<?php


/**

 * UserIdentity represents the data needed to identity a user.

 * It contains the authentication method that checks if the provided

 * data can identity the user.

 */

class UserIdentity extends CUserIdentity

{

	/**

	 * Authenticates a user.

	 * The example implementation makes sure if the username and password

	 * are both 'demo'.

	 * In practical applications, this should be changed to authenticate

	 * against some persistent user identity storage (e.g. database).

	 * @return boolean whether authentication succeeds.

	 */

	private $_id;

	public function authenticate()

	{

		

        $record=Usuario::model()->findByAttributes(array('EMAIL'=>$this->username));

        if($record===null)

            $this->errorCode=self::ERROR_USERNAME_INVALID;

        else if(!CPasswordHelper::verifyPassword($this->password, $record->SENHA))

            $this->errorCode=self::ERROR_PASSWORD_INVALID;

        else

        {

            $this->_id=$record->CODIGO_USUARIO;

            $this->setState('title', $record->title);

            $this->errorCode=self::ERROR_NONE;

        }

        return !$this->errorCode;

    }

 

    public function getId()

    {

        return $this->_id;

    

	}

}



Function witch generate the hash for password on db.




public function beforeSave()

	{

		$this->SENHA = CPasswordHelper::hashPassword($this->SENHA);

		return true;

	}






<?php


/**

 * LoginForm class.

 * LoginForm is the data structure for keeping

 * user login form data. It is used by the 'login' action of 'SiteController'.

 */

class LoginForm extends CFormModel

{

	public $username;

	public $password;

	public $rememberMe;


	private $_identity;


	/**

	 * Declares the validation rules.

	 * The rules state that username and password are required,

	 * and password needs to be authenticated.

	 */

	public function rules()

	{

		return array(

			// username and password are required

			array('username, password', 'required'),

			// rememberMe needs to be a boolean

			array('rememberMe', 'boolean'),

			// password needs to be authenticated

			array('password', 'authenticate'),

		);

	}


	/**

	 * Declares attribute labels.

	 */

	public function attributeLabels()

	{

		return array(

			'rememberMe'=>'Lembrar-me',

		);

	}


	/**

	 * Authenticates the password.

	 * This is the 'authenticate' validator as declared in rules().

	 */

	public function authenticate($attribute,$params)

	{

		if(!$this->hasErrors())

		{

			$this->_identity=new UserIdentity($this->username,$this->password);

			if(!$this->_identity->authenticate())

				$this->addError('Senha', 'Usuário ou senha incorretos.');

			

		}

	}


	/**

	 * Logs in the user using the given username and password in the model.

	 * @return boolean whether login is successful

	 */

	public function login()

	{

		if($this->_identity===null)

		{

			$this->_identity=new UserIdentity($this->username,$this->password);

			$this->_identity->authenticate();

		}

		if($this->_identity->errorCode===UserIdentity::ERROR_NONE)

		{

			$duration=$this->rememberMe ? 3600*24*30 : 0; // 30 days

			Yii::app()->user->login($this->_identity,$duration);

			return true;

		}

		else

			return false;

	}

}



Did you make sure that your password_hash db column is storing the entire hash and not being cut off due to column string length being too short?

Yeah, i do…my column is varchar(100). It’s storing all right.

I had this problem, and it came to be that I was modifying the user’s record on another part of the application. I set the login-time after login validation, and after saving that, the password’s hash changed, so the next time I’d try to login and fail validation. Check if the same is happening to you.