Файл: framework/security/PasswordValidator.php
Строк: 88
<?php
/**
* This class represents a validator for member passwords.
*
* <code>
* $pwdVal = new PasswordValidator();
* $pwdValidator->minLength(7);
* $pwdValidator->checkHistoricalPasswords(6);
* $pwdValidator->characterStrength(3, array("lowercase", "uppercase", "digits", "punctuation"));
*
* Member::set_password_validator($pwdValidator);
* </code>
*
* @package framework
* @subpackage security
*/
class PasswordValidator extends Object {
private static $character_strength_tests = array(
'lowercase' => '/[a-z]/',
'uppercase' => '/[A-Z]/',
'digits' => '/[0-9]/',
'punctuation' => '/[^A-Za-z0-9]/',
);
protected $minLength, $minScore, $testNames, $historicalPasswordCount;
/**
* Minimum password length
*/
public function minLength($minLength) {
$this->minLength = $minLength;
return $this;
}
/**
* Check the character strength of the password.
*
* Eg: $this->characterStrength(3, array("lowercase", "uppercase", "digits", "punctuation"))
*
* @param $minScore The minimum number of character tests that must pass
* @param $testNames The names of the tests to perform
*/
public function characterStrength($minScore, $testNames) {
$this->minScore = $minScore;
$this->testNames = $testNames;
return $this;
}
/**
* Check a number of previous passwords that the user has used, and don't let them change to that.
*/
public function checkHistoricalPasswords($count) {
$this->historicalPasswordCount = $count;
return $this;
}
/**
* @param String $password
* @param Member $member
* @return ValidationResult
*/
public function validate($password, $member) {
$valid = ValidationResult::create();
if($this->minLength) {
if(strlen($password) < $this->minLength) {
$valid->error(
sprintf(
_t(
'PasswordValidator.TOOSHORT',
'Password is too short, it must be %s or more characters long'
),
$this->minLength
),
'TOO_SHORT'
);
}
}
if($this->minScore) {
$score = 0;
$missedTests = array();
foreach($this->testNames as $name) {
if(preg_match(self::config()->character_strength_tests[$name], $password)) {
$score++;
} else {
$missedTests[] = _t(
'PasswordValidator.STRENGTHTEST' . strtoupper($name),
$name,
'The user needs to add this to their password for more complexity'
);
}
}
if($score < $this->minScore) {
$valid->error(
sprintf(
_t(
'PasswordValidator.LOWCHARSTRENGTH',
'Please increase password strength by adding some of the following characters: %s'
),
implode(', ', $missedTests)
),
'LOW_CHARACTER_STRENGTH'
);
}
}
if($this->historicalPasswordCount) {
$previousPasswords = MemberPassword::get()
->where(array('"MemberPassword"."MemberID"' => $member->ID))
->sort('"Created" DESC, "ID" DESC')
->limit($this->historicalPasswordCount);
if($previousPasswords) foreach($previousPasswords as $previousPasswords) {
if($previousPasswords->checkPassword($password)) {
$valid->error(
_t(
'PasswordValidator.PREVPASSWORD',
'You've already used that password in the past, please choose a new password'
),
'PREVIOUS_PASSWORD'
);
break;
}
}
}
return $valid;
}
}