/
PasswordValidatorServiceProvider.php
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/
PasswordValidatorServiceProvider.php
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<?php
namespace Concrete\Core\Validator;
use ArrayAccess;
use Concrete\Core\Application\Application;
use Concrete\Core\Config\Repository\Repository;
use Concrete\Core\Error\ErrorList\ErrorList;
use Concrete\Core\Foundation\Service\Provider;
use Concrete\Core\Validator\String\MaximumLengthValidator;
use Concrete\Core\Validator\String\MinimumLengthValidator;
use Concrete\Core\Validator\String\RegexValidator;
use Concrete\Core\Validator\String\ReuseValidator;
class PasswordValidatorServiceProvider extends Provider
{
/**
* The config repository we're using to register
*
* @var \Concrete\Core\Config\Repository\Repository
*/
protected $config;
/**
* {@inheritdoc}
*
* @see \Concrete\Core\Foundation\Service\Provider::register()
*/
public function register()
{
$this->app->singleton('validator/password', function () {
$this->config = $this->app->make('config');
$manager = $this->app->make(ValidatorForSubjectManager::class);
$this->applyLengthValidators($manager);
$this->applyStringRequirementValidators($manager);
$this->applyRegexRequirements($manager);
$this->applyPasswordReuseValidator($manager);
return $manager;
});
}
/**
*
*
* @param ValidatorManagerInterface $manager
*/
protected function applyPasswordReuseValidator(ValidatorManagerInterface $manager)
{
$trackUse = $this->config->get('concrete.user.password.reuse', 5);
if ($trackUse) {
$reuseValidator = $this->app->make(ReuseValidator::class, ['maxReuse' => $trackUse]);
$reuseValidator->setErrorString($reuseValidator::E_PASSWORD_RECENTLY_USED, t("You've recently used this password, please use a unique password."));
$reuseValidator->setRequirementString($reuseValidator::E_PASSWORD_RECENTLY_USED, t('Must not have been recently used by this account.'));
$manager->setValidator('reuse', $reuseValidator);
}
}
/**
* Apply configured password length validators
*
* @param $manager
*/
protected function applyLengthValidators(ValidatorManagerInterface $manager)
{
$minimum = $this->getMinimumRequirement();
$maximum = $this->getMaximumRequirement();
$this->applyMinMaxStrings($minimum, $maximum);
// Set validators
if ($maximum) {
$manager->setValidator('maximum_length', $maximum);
}
if ($minimum) {
$manager->setValidator('minimum_length', $minimum);
}
}
/**
* Get maximum length validator
*
* @return \Concrete\Core\Validator\String\MaximumLengthValidator|null
*/
protected function getMaximumRequirement()
{
$maximumLength = $this->config->get('concrete.user.password.maximum');
return $maximumLength ? $this->app->make(MaximumLengthValidator::class, ['maximum_length' => $maximumLength]) : null;
}
/**
* Get minimum length validator
*
* @return \Concrete\Core\Validator\String\MinimumLengthValidator|null
*/
protected function getMinimumRequirement()
{
$minimumLength = $this->config->get('concrete.user.password.minimum', 8);
return $minimumLength ? $this->app->make(MinimumLengthValidator::class, ['minimum_length' => $minimumLength]) : null;
}
/**
* Apply translatable strings to minimum and maximum requirements
*
* @param $minimum
* @param $maximum
*/
protected function applyMinMaxStrings($minimum, $maximum)
{
if ($minimum && $maximum) {
$errorString = t('A password must be between %s and %s characters long.', $minimum->getMinimumLength(), $maximum->getMaximumLength());
$requirement = t('Must be between %s and %s characters long.', $minimum->getMinimumLength(), $maximum->getMaximumLength());
} elseif ($minimum) {
$errorString = t('Must be at least %s characters long.', $minimum->getMinimumLength());
$requirement = t('A password must be at least %s characters long.', $minimum->getMinimumLength());
} elseif ($maximum) {
$errorString = t('A password must be at most %s characters long.', $maximum->getMaximumLength());
$requirement = t('Must be at most %s characters long.', $maximum->getMaximumLength());
} else {
$errorString = t('Invalid Password.');
$requirement = '';
}
$errorHandler = function ($validator, $code, $password) use ($errorString) { return $errorString; };
$requirementHandler = function ($validator, $code) use (&$requirement) { return $requirement; };
$minimum->setRequirementString($minimum::E_TOO_SHORT, $requirementHandler);
$minimum->setErrorString($minimum::E_TOO_SHORT, $errorHandler);
if (is_object($maximum)) {
$maximum->setRequirementString($maximum::E_TOO_LONG, $requirementHandler);
$maximum->setErrorString($maximum::E_TOO_LONG, $errorHandler);
}
}
/**
* Apply validators that require specific substrings
*
* @param \Concrete\Core\Validator\ValidatorManagerInterface $manager
*/
protected function applyStringRequirementValidators(ValidatorManagerInterface $manager)
{
$specialCharacters = (int) $this->config->get('concrete.user.password.required_special_characters', 0);
$lowerCase = (int) $this->config->get('concrete.user.password.required_lower_case', 0);
$upperCase = (int) $this->config->get('concrete.user.password.required_upper_case', 0);
if ($specialCharacters) {
$regex = "/([^a-zA-Z0-9].*){{$specialCharacters},}/";
$requirement = t2('Must contain at least %d special character.', 'Must contain at least %d special characters.', $specialCharacters);
$manager->setValidator('required_special_characters', $this->regexValidator($regex, $requirement));
}
if ($lowerCase) {
$regex = "/([a-z].*){{$lowerCase},}/";
$requirement = t2('Must contain at least %d lowercase character.', 'Must contain at least %d lowercase characters.', $lowerCase);
$manager->setValidator('required_lower_case', $this->regexValidator($regex, $requirement));
}
if ($upperCase) {
$regex = "/([A-Z].*){{$upperCase},}/";
$requirement = t2('Must contain at least %d uppercase character.', 'Must contain at least %d uppercase characters.', $upperCase);
$manager->setValidator('required_upper_case', $this->regexValidator($regex, $requirement));
}
}
/**
* Create a regex validator
*
* @param string $regex
* @param string $requirement
*
* @return RegexValidator
*/
protected function regexValidator($regex, $requirement)
{
$validator = $this->app->make(RegexValidator::class, ['pattern' => $regex]);
$validator->setRequirementString(RegexValidator::E_DOES_NOT_MATCH, $requirement);
$validator->setErrorString(RegexValidator::E_DOES_NOT_MATCH, $requirement);
return $validator;
}
protected function applyRegexRequirements(ValidatorManagerInterface $manager)
{
$specialCharacters = (array) $this->config->get('concrete.user.password.custom_regex', []);
$i = 0;
foreach ($specialCharacters as $regex => $requirementString) {
$validator = $this->wrappedRegexValidator($regex, $requirementString);
$i++;
$manager->setValidator('custom_validator_' . $i, $validator);
}
}
/**
* Create a closure validator that wraps a regex validator and handles all errors
* If the given regex is invalid, we will deny all passwords!
*
* @param $regex
* @param $requirementString
*
* @return \Concrete\Core\Validator\ClosureValidator|mixed
*/
protected function wrappedRegexValidator($regex, $requirementString)
{
$regexValidator = $this->regexValidator($regex, $requirementString);
$validator = $this->app->make(ClosureValidator::class, ['validator_closure' =>
function (ClosureValidator $validator, $string, ArrayAccess $error = null) use ($regexValidator) {
try {
$regexValidator->isValid($string, $error);
} catch (\RuntimeException $e) {
if ($error) {
$error[] = $regexValidator::E_DOES_NOT_MATCH;
}
return false;
}
},
function () use ($regexValidator, $requirementString) {
return [
$regexValidator::E_DOES_NOT_MATCH => $requirementString
];
}
]);
return $validator;
}
}