PasswordResetModel::expirePasswordReset() - Code Metrics - Inspection of "Prevent password reset brute force" - panique/huge - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#778)

unknown

created 2016-01-09 06:29 UTC

PasswordResetModel::expirePasswordReset() B

↳ Parent: PasswordResetModel

Complexity

Conditions	2
Paths	2

Size

Total Lines	25
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Metric	Value
dl	0
loc	25
rs	8.8571
cc	2
eloc	12
nc	2
nop	1

<?php

/**
 * Class PasswordResetModel
 *
 * Handles all the stuff that is related to the password-reset process
 */
class PasswordResetModel
namespace YourVendor;

class YourClass { }
{
	/**
	 * Perform the necessary actions to send a password reset mail
	 *
	 * @param $user_name_or_email string Username or user's email
	 * @param $captcha string Captcha string
	 *
	 * @return bool success status
	 */
	public static function requestPasswordReset($user_name_or_email, $captcha)
	{
		if (!CaptchaModel::checkCaptcha($captcha)) {
			Session::add('feedback_negative', Text::get('FEEDBACK_CAPTCHA_WRONG'));
			return false;
		}

		if (empty($user_name_or_email)) {
			Session::add('feedback_negative', Text::get('FEEDBACK_USERNAME_EMAIL_FIELD_EMPTY'));
			return false;
		}

		// check if that username exists
		$result = UserModel::getUserDataByUserNameOrEmail($user_name_or_email);
		if (!$result) {
			Session::add('feedback_negative', Text::get('FEEDBACK_USER_DOES_NOT_EXIST'));
			return false;
		}

		// generate integer-timestamp (to see when exactly the user (or an attacker) requested the password reset mail)
		// generate random hash for email password reset verification (40 char string)
		$temporary_timestamp = time();
		$user_password_reset_hash = sha1(uniqid(mt_rand(), true));

		// set token (= a random hash string and a timestamp) into database ...
		$token_set = self::setPasswordResetDatabaseToken($result->user_name, $user_password_reset_hash, $temporary_timestamp);
		if (!$token_set) {
			return false;
		}

		// ... and send a mail to the user, containing a link with username and token hash string
		$mail_sent = self::sendPasswordResetMail($result->user_name, $user_password_reset_hash, $result->user_email);
		if ($mail_sent) {
			return true;
		}

		// default return
		return false;
	}

	/**
	 * Set password reset token in database (for DEFAULT user accounts)
	 *
	 * @param string $user_name username
	 * @param string $user_password_reset_hash password reset hash
	 * @param int $temporary_timestamp timestamp
	 *
	 * @return bool success status
	 */
	public static function setPasswordResetDatabaseToken($user_name, $user_password_reset_hash, $temporary_timestamp)
	{
		$database = DatabaseFactory::getFactory()->getConnection();

		$sql = "UPDATE users
                SET user_password_reset_hash = :user_password_reset_hash, user_password_reset_timestamp = :user_password_reset_timestamp
                WHERE user_name = :user_name AND user_provider_type = :provider_type LIMIT 1";
		$query = $database->prepare($sql);
		$query->execute(array(
			':user_password_reset_hash' => $user_password_reset_hash, ':user_name' => $user_name,
			':user_password_reset_timestamp' => $temporary_timestamp, ':provider_type' => 'DEFAULT'
		));

		// check if exactly one row was successfully changed
		if ($query->rowCount() == 1) {
			return true;
		}

		// fallback
		Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_RESET_TOKEN_FAIL'));
		return false;
	}

	/**
	 * Send the password reset mail
	 *
	 * @param string $user_name username
	 * @param string $user_password_reset_hash password reset hash
	 * @param string $user_email user email
	 *
	 * @return bool success status
	 */
	public static function sendPasswordResetMail($user_name, $user_password_reset_hash, $user_email)
	{
		// create email body
		$body = Config::get('EMAIL_PASSWORD_RESET_CONTENT') . ' ' . Config::get('URL') .
		        Config::get('EMAIL_PASSWORD_RESET_URL') . '/' . urlencode($user_name) . '/' . urlencode($user_password_reset_hash);

		// create instance of Mail class, try sending and check
		$mail = new Mail;
		$mail_sent = $mail->sendMail($user_email, Config::get('EMAIL_PASSWORD_RESET_FROM_EMAIL'), 
            Config::get('EMAIL_PASSWORD_RESET_FROM_NAME'), Config::get('EMAIL_PASSWORD_RESET_SUBJECT'), $body
		);

		if ($mail_sent) {
			Session::add('feedback_positive', Text::get('FEEDBACK_PASSWORD_RESET_MAIL_SENDING_SUCCESSFUL'));
			return true;
		}

		Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_RESET_MAIL_SENDING_ERROR') . $mail->getError() );
		return false;
	}

	/**
	 * Verifies the password reset request via the verification hash token (that's only valid for one hour)
	 * @param string $user_name Username
	 * @param string $verification_code Hash token
	 * @return bool Success status
	 */
	public static function verifyPasswordReset($user_name, $verification_code)
	{
		$database = DatabaseFactory::getFactory()->getConnection();

		// check if user-provided username + verification code combination exists
		$sql = "SELECT user_id, user_password_reset_hash, user_password_reset_timestamp
                  FROM users
                 WHERE user_name = :user_name
                       AND user_provider_type = :user_provider_type
                 LIMIT 1";
		$query = $database->prepare($sql);
		$query->execute(array(
			':user_name' => $user_name,
			':user_provider_type' => 'DEFAULT'
		));
		
		//if username does not exist
		if($query->rowCount() != 1) {
			Session::add('feedback_negative', Text::get('FEEDBACK_USER_DOES_NOT_EXIST'));
			return false;
		}

		// get result row (as an object)
		$result_user_row = $query->fetch();
		
		// if this user's verification hash code does NOT exist
		if ($result_user_row->user_password_reset_hash == NULL) {
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_RESET_TOKEN_INVALID'));
			return false;
		}
		
		// if this user's verification hash code does not match
		// marks existing request as expired
		if ($result_user_row->user_password_reset_hash != $verification_code) {
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_RESET_TOKEN_INVALID'));
			self::expirePasswordReset($user_name);
			return false;
		}
		
		// 3600 seconds are 1 hour
		$timestamp_one_hour_ago = time() - 3600;

		// if password reset request was sent within the last hour (this timeout is for security reasons)
		if ($result_user_row->user_password_reset_timestamp > $timestamp_one_hour_ago) {
			// verification was successful
			Session::add('feedback_positive', Text::get('FEEDBACK_PASSWORD_RESET_LINK_VALID'));
			return true;
		} else {
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_RESET_LINK_EXPIRED'));
			return false;
		}
	}
	
	/**
	 * Marks existing password reset request as expired to prevent prevent guessing hash codes
	 * @param string $user_name Username
	 * @return bool Success status
	 */
	private static function expirePasswordReset($user_name) {
		// 3600 seconds are 1 hour
		$timestamp_one_hour_ago = time() - 3600;
		
		$database = DatabaseFactory::getFactory()->getConnection();

		$sql = "UPDATE users
                SET user_password_reset_timestamp = :user_password_reset_timestamp
                WHERE user_name = :user_name AND user_provider_type = :provider_type LIMIT 1";
		$query = $database->prepare($sql);
		$query->execute(array(
			':user_name' => $user_name,
			':user_password_reset_timestamp' => $timestamp_one_hour_ago,
			':provider_type' => 'DEFAULT'
		));

		// check if exactly one row was successfully changed
		if ($query->rowCount() == 1) {
			return true;
		}

		// user feedback not necessary here
		// but adding a note in the logs may be useful
		return false;
	}

	/**
	 * Writes the new password to the database
	 *
	 * @param string $user_name username
	 * @param string $user_password_hash
	 * @param string $user_password_reset_hash
	 *
	 * @return bool
	 */
	public static function saveNewUserPassword($user_name, $user_password_hash, $user_password_reset_hash)
	{
		$database = DatabaseFactory::getFactory()->getConnection();

		$sql = "UPDATE users SET user_password_hash = :user_password_hash, user_password_reset_hash = NULL,
                       user_password_reset_timestamp = NULL
                 WHERE user_name = :user_name AND user_password_reset_hash = :user_password_reset_hash
                       AND user_provider_type = :user_provider_type LIMIT 1";
		$query = $database->prepare($sql);
		$query->execute(array(
			':user_password_hash' => $user_password_hash, ':user_name' => $user_name,
			':user_password_reset_hash' => $user_password_reset_hash, ':user_provider_type' => 'DEFAULT'
		));

		// if one result exists, return true, else false. Could be written even shorter btw.
		return ($query->rowCount() == 1 ? true : false);
	}

	/**
	 * Set the new password (for DEFAULT user, FACEBOOK-users don't have a password)
	 * Please note: At this point the user has already pre-verified via verifyPasswordReset() (within one hour),
	 * so we don't need to check again for the 60min-limit here. In this method we authenticate
	 * via username & password-reset-hash from (hidden) form fields.
	 *
	 * @param string $user_name
	 * @param string $user_password_reset_hash
	 * @param string $user_password_new
	 * @param string $user_password_repeat
	 *
	 * @return bool success state of the password reset
	 */
	public static function setNewPassword($user_name, $user_password_reset_hash, $user_password_new, $user_password_repeat)
	{
		// validate the password
		if (!self::validateResetPassword($user_name, $user_password_reset_hash, $user_password_new, $user_password_repeat)) {
			return false;
		}

		// crypt the password (with the PHP 5.5+'s password_hash() function, result is a 60 character hash string)
		$user_password_hash = password_hash($user_password_new, PASSWORD_DEFAULT);

		// write the password to database (as hashed and salted string), reset user_password_reset_hash
		if (self::saveNewUserPassword($user_name, $user_password_hash, $user_password_reset_hash)) {
			Session::add('feedback_positive', Text::get('FEEDBACK_PASSWORD_CHANGE_SUCCESSFUL'));
			return true;
		} else {
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_CHANGE_FAILED'));
			return false;
		}
	}

	/**
	 * Validate the password submission
	 *
	 * @param $user_name
	 * @param $user_password_reset_hash
	 * @param $user_password_new
	 * @param $user_password_repeat
	 *
	 * @return bool
	 */
	public static function validateResetPassword($user_name, $user_password_reset_hash, $user_password_new, $user_password_repeat)
	{
		if (empty($user_name)) {
			Session::add('feedback_negative', Text::get('FEEDBACK_USERNAME_FIELD_EMPTY'));
			return false;
		} else if (empty($user_password_reset_hash)) {
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_RESET_TOKEN_MISSING'));
			return false;
		} else if (empty($user_password_new) || empty($user_password_repeat)) {
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_FIELD_EMPTY'));
			return false;
		} else if ($user_password_new !== $user_password_repeat) {
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_REPEAT_WRONG'));
			return false;
		} else if (strlen($user_password_new) < 6) {
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_TOO_SHORT'));
			return false;
		}

		return true;
	}


	/**
	 * Writes the new password to the database
	 *
	 * @param string $user_name
	 * @param string $user_password_hash
	 *
	 * @return bool
	 */
	public static function saveChangedPassword($user_name, $user_password_hash)
	{
		$database = DatabaseFactory::getFactory()->getConnection();

		$sql = "UPDATE users SET user_password_hash = :user_password_hash
                 WHERE user_name = :user_name
                 AND user_provider_type = :user_provider_type LIMIT 1";
		$query = $database->prepare($sql);
		$query->execute(array(
			':user_password_hash' => $user_password_hash, ':user_name' => $user_name,
			':user_provider_type' => 'DEFAULT'
		));

		// if one result exists, return true, else false. Could be written even shorter btw.
		return ($query->rowCount() == 1 ? true : false);
	}


	/**
	 * Validates fields, hashes new password, saves new password
	 *
	 * @param string $user_name
	 * @param string $user_password_current
	 * @param string $user_password_new
	 * @param string $user_password_repeat
	 *
	 * @return bool
	 */
	public static function changePassword($user_name, $user_password_current, $user_password_new, $user_password_repeat)
	{
		// validate the passwords
		if (!self::validatePasswordChange($user_name, $user_password_current, $user_password_new, $user_password_repeat)) {
			return false;
		}

		// crypt the password (with the PHP 5.5+'s password_hash() function, result is a 60 character hash string)
		$user_password_hash = password_hash($user_password_new, PASSWORD_DEFAULT);

		// write the password to database (as hashed and salted string)
		if (self::saveChangedPassword($user_name, $user_password_hash)) {
			Session::add('feedback_positive', Text::get('FEEDBACK_PASSWORD_CHANGE_SUCCESSFUL'));
			return true;
		} else {
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_CHANGE_FAILED'));
			return false;
		}
	}


	/**
	 * Validates current and new passwords
	 *
	 * @param string $user_name
	 * @param string $user_password_current
	 * @param string $user_password_new
	 * @param string $user_password_repeat
	 *
	 * @return bool
	 */
	public static function validatePasswordChange($user_name, $user_password_current, $user_password_new, $user_password_repeat)
	{
		$database = DatabaseFactory::getFactory()->getConnection();

		$sql = "SELECT user_password_hash, user_failed_logins FROM users WHERE user_name = :user_name LIMIT 1;";
		$query = $database->prepare($sql);
		$query->execute(array(
			':user_name' => $user_name
		));

		$user = $query->fetch();

        if ($query->rowCount() == 1) {
            $user_password_hash = $user->user_password_hash;
        } else {
            Session::add('feedback_negative', Text::get('FEEDBACK_USER_DOES_NOT_EXIST'));
            return false;
        }

		if (!password_verify($user_password_current, $user_password_hash)) {
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_CURRENT_INCORRECT'));
			return false;
		} else if (empty($user_password_new) || empty($user_password_repeat)) {
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_FIELD_EMPTY'));
			return false;
		} else if ($user_password_new !== $user_password_repeat) {
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_REPEAT_WRONG'));
			return false;
		} else if (strlen($user_password_new) < 6) {
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_TOO_SHORT'));
			return false;
		} else if ($user_password_current == $user_password_new){
			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_NEW_SAME_AS_CURRENT'));
			return false;
		}

		return true;
	}
}


1			<?php
2
3			/**
4			* Class PasswordResetModel
5			*
6			* Handles all the stuff that is related to the password-reset process
7			*/
8			class PasswordResetModel
			0 ignored issues – show Coding Style Compatibility introduced 2015-11-21 00:55 UTC by Report Bug Copy Issue Report PSR1 recommends that each class must be in a namespace of at least one level to avoid collisions. You can fix this by adding a namespace to your class: namespace YourVendor; class YourClass { } When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries. Loading history...
9			{
10			/**
11			* Perform the necessary actions to send a password reset mail
12			*
13			* @param $user_name_or_email string Username or user's email
14			* @param $captcha string Captcha string
15			*
16			* @return bool success status
17			*/
18			public static function requestPasswordReset($user_name_or_email, $captcha)
19			{
20			if (!CaptchaModel::checkCaptcha($captcha)) {
21			Session::add('feedback_negative', Text::get('FEEDBACK_CAPTCHA_WRONG'));
22			return false;
23			}
24
25			if (empty($user_name_or_email)) {
26			Session::add('feedback_negative', Text::get('FEEDBACK_USERNAME_EMAIL_FIELD_EMPTY'));
27			return false;
28			}
29
30			// check if that username exists
31			$result = UserModel::getUserDataByUserNameOrEmail($user_name_or_email);
32			if (!$result) {
33			Session::add('feedback_negative', Text::get('FEEDBACK_USER_DOES_NOT_EXIST'));
34			return false;
35			}
36
37			// generate integer-timestamp (to see when exactly the user (or an attacker) requested the password reset mail)
38			// generate random hash for email password reset verification (40 char string)
39			$temporary_timestamp = time();
40			$user_password_reset_hash = sha1(uniqid(mt_rand(), true));
41
42			// set token (= a random hash string and a timestamp) into database ...
43			$token_set = self::setPasswordResetDatabaseToken($result->user_name, $user_password_reset_hash, $temporary_timestamp);
44			if (!$token_set) {
45			return false;
46			}
47
48			// ... and send a mail to the user, containing a link with username and token hash string
49			$mail_sent = self::sendPasswordResetMail($result->user_name, $user_password_reset_hash, $result->user_email);
50			if ($mail_sent) {
51			return true;
52			}
53
54			// default return
55			return false;
56			}
57
58			/**
59			* Set password reset token in database (for DEFAULT user accounts)
60			*
61			* @param string $user_name username
62			* @param string $user_password_reset_hash password reset hash
63			* @param int $temporary_timestamp timestamp
64			*
65			* @return bool success status
66			*/
67			public static function setPasswordResetDatabaseToken($user_name, $user_password_reset_hash, $temporary_timestamp)
68			{
69			$database = DatabaseFactory::getFactory()->getConnection();
70
71			$sql = "UPDATE users
72			SET user_password_reset_hash = :user_password_reset_hash, user_password_reset_timestamp = :user_password_reset_timestamp
73			WHERE user_name = :user_name AND user_provider_type = :provider_type LIMIT 1";
74			$query = $database->prepare($sql);
75			$query->execute(array(
76			':user_password_reset_hash' => $user_password_reset_hash, ':user_name' => $user_name,
77			':user_password_reset_timestamp' => $temporary_timestamp, ':provider_type' => 'DEFAULT'
78			));
79
80			// check if exactly one row was successfully changed
81			if ($query->rowCount() == 1) {
82			return true;
83			}
84
85			// fallback
86			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_RESET_TOKEN_FAIL'));
87			return false;
88			}
89
90			/**
91			* Send the password reset mail
92			*
93			* @param string $user_name username
94			* @param string $user_password_reset_hash password reset hash
95			* @param string $user_email user email
96			*
97			* @return bool success status
98			*/
99			public static function sendPasswordResetMail($user_name, $user_password_reset_hash, $user_email)
100			{
101			// create email body
102			$body = Config::get('EMAIL_PASSWORD_RESET_CONTENT') . ' ' . Config::get('URL') .
103			Config::get('EMAIL_PASSWORD_RESET_URL') . '/' . urlencode($user_name) . '/' . urlencode($user_password_reset_hash);
104
105			// create instance of Mail class, try sending and check
106			$mail = new Mail;
107			$mail_sent = $mail->sendMail($user_email, Config::get('EMAIL_PASSWORD_RESET_FROM_EMAIL'),
108			Config::get('EMAIL_PASSWORD_RESET_FROM_NAME'), Config::get('EMAIL_PASSWORD_RESET_SUBJECT'), $body
109			);
110
111			if ($mail_sent) {
112			Session::add('feedback_positive', Text::get('FEEDBACK_PASSWORD_RESET_MAIL_SENDING_SUCCESSFUL'));
113			return true;
114			}
115
116			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_RESET_MAIL_SENDING_ERROR') . $mail->getError() );
117			return false;
118			}
119
120			/**
121			* Verifies the password reset request via the verification hash token (that's only valid for one hour)
122			* @param string $user_name Username
123			* @param string $verification_code Hash token
124			* @return bool Success status
125			*/
126			public static function verifyPasswordReset($user_name, $verification_code)
127			{
128			$database = DatabaseFactory::getFactory()->getConnection();
129
130			// check if user-provided username + verification code combination exists
131			$sql = "SELECT user_id, user_password_reset_hash, user_password_reset_timestamp
132			FROM users
133			WHERE user_name = :user_name
134			AND user_provider_type = :user_provider_type
135			LIMIT 1";
136			$query = $database->prepare($sql);
137			$query->execute(array(
138			':user_name' => $user_name,
139			':user_provider_type' => 'DEFAULT'
140			));
141
142			//if username does not exist
143			if($query->rowCount() != 1) {
144			Session::add('feedback_negative', Text::get('FEEDBACK_USER_DOES_NOT_EXIST'));
145			return false;
146			}
147
148			// get result row (as an object)
149			$result_user_row = $query->fetch();
150
151			// if this user's verification hash code does NOT exist
152			if ($result_user_row->user_password_reset_hash == NULL) {
153			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_RESET_TOKEN_INVALID'));
154			return false;
155			}
156
157			// if this user's verification hash code does not match
158			// marks existing request as expired
159			if ($result_user_row->user_password_reset_hash != $verification_code) {
160			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_RESET_TOKEN_INVALID'));
161			self::expirePasswordReset($user_name);
162			return false;
163			}
164
165			// 3600 seconds are 1 hour
166			$timestamp_one_hour_ago = time() - 3600;
167
168			// if password reset request was sent within the last hour (this timeout is for security reasons)
169			if ($result_user_row->user_password_reset_timestamp > $timestamp_one_hour_ago) {
170			// verification was successful
171			Session::add('feedback_positive', Text::get('FEEDBACK_PASSWORD_RESET_LINK_VALID'));
172			return true;
173			} else {
174			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_RESET_LINK_EXPIRED'));
175			return false;
176			}
177			}
178
179			/**
180			* Marks existing password reset request as expired to prevent prevent guessing hash codes
181			* @param string $user_name Username
182			* @return bool Success status
183			*/
184			private static function expirePasswordReset($user_name) {
185			// 3600 seconds are 1 hour
186			$timestamp_one_hour_ago = time() - 3600;
187
188			$database = DatabaseFactory::getFactory()->getConnection();
189
190			$sql = "UPDATE users
191			SET user_password_reset_timestamp = :user_password_reset_timestamp
192			WHERE user_name = :user_name AND user_provider_type = :provider_type LIMIT 1";
193			$query = $database->prepare($sql);
194			$query->execute(array(
195			':user_name' => $user_name,
196			':user_password_reset_timestamp' => $timestamp_one_hour_ago,
197			':provider_type' => 'DEFAULT'
198			));
199
200			// check if exactly one row was successfully changed
201			if ($query->rowCount() == 1) {
202			return true;
203			}
204
205			// user feedback not necessary here
206			// but adding a note in the logs may be useful
207			return false;
208			}
209
210			/**
211			* Writes the new password to the database
212			*
213			* @param string $user_name username
214			* @param string $user_password_hash
215			* @param string $user_password_reset_hash
216			*
217			* @return bool
218			*/
219			public static function saveNewUserPassword($user_name, $user_password_hash, $user_password_reset_hash)
220			{
221			$database = DatabaseFactory::getFactory()->getConnection();
222
223			$sql = "UPDATE users SET user_password_hash = :user_password_hash, user_password_reset_hash = NULL,
224			user_password_reset_timestamp = NULL
225			WHERE user_name = :user_name AND user_password_reset_hash = :user_password_reset_hash
226			AND user_provider_type = :user_provider_type LIMIT 1";
227			$query = $database->prepare($sql);
228			$query->execute(array(
229			':user_password_hash' => $user_password_hash, ':user_name' => $user_name,
230			':user_password_reset_hash' => $user_password_reset_hash, ':user_provider_type' => 'DEFAULT'
231			));
232
233			// if one result exists, return true, else false. Could be written even shorter btw.
234			return ($query->rowCount() == 1 ? true : false);
235			}
236
237			/**
238			* Set the new password (for DEFAULT user, FACEBOOK-users don't have a password)
239			* Please note: At this point the user has already pre-verified via verifyPasswordReset() (within one hour),
240			* so we don't need to check again for the 60min-limit here. In this method we authenticate
241			* via username & password-reset-hash from (hidden) form fields.
242			*
243			* @param string $user_name
244			* @param string $user_password_reset_hash
245			* @param string $user_password_new
246			* @param string $user_password_repeat
247			*
248			* @return bool success state of the password reset
249			*/
250			public static function setNewPassword($user_name, $user_password_reset_hash, $user_password_new, $user_password_repeat)
251			{
252			// validate the password
253			if (!self::validateResetPassword($user_name, $user_password_reset_hash, $user_password_new, $user_password_repeat)) {
254			return false;
255			}
256
257			// crypt the password (with the PHP 5.5+'s password_hash() function, result is a 60 character hash string)
258			$user_password_hash = password_hash($user_password_new, PASSWORD_DEFAULT);
259
260			// write the password to database (as hashed and salted string), reset user_password_reset_hash
261			if (self::saveNewUserPassword($user_name, $user_password_hash, $user_password_reset_hash)) {
262			Session::add('feedback_positive', Text::get('FEEDBACK_PASSWORD_CHANGE_SUCCESSFUL'));
263			return true;
264			} else {
265			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_CHANGE_FAILED'));
266			return false;
267			}
268			}
269
270			/**
271			* Validate the password submission
272			*
273			* @param $user_name
274			* @param $user_password_reset_hash
275			* @param $user_password_new
276			* @param $user_password_repeat
277			*
278			* @return bool
279			*/
280			public static function validateResetPassword($user_name, $user_password_reset_hash, $user_password_new, $user_password_repeat)
281			{
282			if (empty($user_name)) {
283			Session::add('feedback_negative', Text::get('FEEDBACK_USERNAME_FIELD_EMPTY'));
284			return false;
285			} else if (empty($user_password_reset_hash)) {
286			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_RESET_TOKEN_MISSING'));
287			return false;
288			} else if (empty($user_password_new) \|\| empty($user_password_repeat)) {
289			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_FIELD_EMPTY'));
290			return false;
291			} else if ($user_password_new !== $user_password_repeat) {
292			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_REPEAT_WRONG'));
293			return false;
294			} else if (strlen($user_password_new) < 6) {
295			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_TOO_SHORT'));
296			return false;
297			}
298
299			return true;
300			}
301
302
303			/**
304			* Writes the new password to the database
305			*
306			* @param string $user_name
307			* @param string $user_password_hash
308			*
309			* @return bool
310			*/
311			public static function saveChangedPassword($user_name, $user_password_hash)
312			{
313			$database = DatabaseFactory::getFactory()->getConnection();
314
315			$sql = "UPDATE users SET user_password_hash = :user_password_hash
316			WHERE user_name = :user_name
317			AND user_provider_type = :user_provider_type LIMIT 1";
318			$query = $database->prepare($sql);
319			$query->execute(array(
320			':user_password_hash' => $user_password_hash, ':user_name' => $user_name,
321			':user_provider_type' => 'DEFAULT'
322			));
323
324			// if one result exists, return true, else false. Could be written even shorter btw.
325			return ($query->rowCount() == 1 ? true : false);
326			}
327
328
329			/**
330			* Validates fields, hashes new password, saves new password
331			*
332			* @param string $user_name
333			* @param string $user_password_current
334			* @param string $user_password_new
335			* @param string $user_password_repeat
336			*
337			* @return bool
338			*/
339			public static function changePassword($user_name, $user_password_current, $user_password_new, $user_password_repeat)
340			{
341			// validate the passwords
342			if (!self::validatePasswordChange($user_name, $user_password_current, $user_password_new, $user_password_repeat)) {
343			return false;
344			}
345
346			// crypt the password (with the PHP 5.5+'s password_hash() function, result is a 60 character hash string)
347			$user_password_hash = password_hash($user_password_new, PASSWORD_DEFAULT);
348
349			// write the password to database (as hashed and salted string)
350			if (self::saveChangedPassword($user_name, $user_password_hash)) {
351			Session::add('feedback_positive', Text::get('FEEDBACK_PASSWORD_CHANGE_SUCCESSFUL'));
352			return true;
353			} else {
354			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_CHANGE_FAILED'));
355			return false;
356			}
357			}
358
359
360			/**
361			* Validates current and new passwords
362			*
363			* @param string $user_name
364			* @param string $user_password_current
365			* @param string $user_password_new
366			* @param string $user_password_repeat
367			*
368			* @return bool
369			*/
370			public static function validatePasswordChange($user_name, $user_password_current, $user_password_new, $user_password_repeat)
371			{
372			$database = DatabaseFactory::getFactory()->getConnection();
373
374			$sql = "SELECT user_password_hash, user_failed_logins FROM users WHERE user_name = :user_name LIMIT 1;";
375			$query = $database->prepare($sql);
376			$query->execute(array(
377			':user_name' => $user_name
378			));
379
380			$user = $query->fetch();
381
382			if ($query->rowCount() == 1) {
383			$user_password_hash = $user->user_password_hash;
384			} else {
385			Session::add('feedback_negative', Text::get('FEEDBACK_USER_DOES_NOT_EXIST'));
386			return false;
387			}
388
389			if (!password_verify($user_password_current, $user_password_hash)) {
390			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_CURRENT_INCORRECT'));
391			return false;
392			} else if (empty($user_password_new) \|\| empty($user_password_repeat)) {
393			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_FIELD_EMPTY'));
394			return false;
395			} else if ($user_password_new !== $user_password_repeat) {
396			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_REPEAT_WRONG'));
397			return false;
398			} else if (strlen($user_password_new) < 6) {
399			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_TOO_SHORT'));
400			return false;
401			} else if ($user_password_current == $user_password_new){
402			Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_NEW_SAME_AS_CURRENT'));
403			return false;
404			}
405
406			return true;
407			}
408			}
409

panique / huge

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Pull Request — master (#778)

PasswordResetModel::expirePasswordReset() B

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