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UserConfigTrait.php
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UserConfigTrait.php
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<?php
namespace App\Traits;
use App\Policy\Greylist;
trait UserConfigTrait
{
/**
* A helper to get the user configuration.
*/
public function getConfig(): array
{
$settings = $this->getSettings([
'greylist_enabled',
'guam_enabled',
'password_policy',
'max_password_age',
'limit_geo'
]);
$config = [
'greylist_enabled' => $settings['greylist_enabled'] !== 'false',
'guam_enabled' => $settings['guam_enabled'] === 'true',
'limit_geo' => $settings['limit_geo'] ? json_decode($settings['limit_geo'], true) : [],
'max_password_age' => $settings['max_password_age'],
'password_policy' => $settings['password_policy'],
];
return $config;
}
/**
* A helper to update user configuration.
*
* @param array $config An array of configuration options
*
* @return array A list of input validation error messages
*/
public function setConfig(array $config): array
{
$errors = [];
foreach ($config as $key => $value) {
if ($key == 'greylist_enabled') {
$this->setSetting($key, $value ? 'true' : 'false');
} elseif ($key == 'guam_enabled') {
$this->setSetting($key, $value ? 'true' : null);
} elseif ($key == 'limit_geo') {
if (!is_array($value)) {
$errors[$key] = \trans('validation.invalid-limit-geo');
continue;
}
foreach ($value as $idx => $country) {
if (!preg_match('/^[a-zA-Z]{2}$/', $country)) {
$errors[$key] = \trans('validation.invalid-limit-geo');
continue 2;
}
$value[$idx] = \strtoupper($country);
}
if (count($value) > 250) {
$errors[$key] = \trans('validation.invalid-limit-geo');
}
$this->setSetting($key, !empty($value) ? json_encode($value) : null);
} elseif ($key == 'max_password_age') {
$this->setSetting($key, intval($value) > 0 ? (int) $value : null);
} elseif ($key == 'password_policy') {
// Validate the syntax and make sure min and max is included
if (
!is_string($value)
|| strpos($value, 'min:') === false
|| strpos($value, 'max:') === false
|| !preg_match('/^[a-z0-9:,]+$/', $value)
) {
$errors[$key] = \trans('validation.invalid-password-policy');
continue;
}
foreach (explode(',', $value) as $rule) {
if ($error = $this->validatePasswordPolicyRule($rule)) {
$errors[$key] = $error;
continue 2;
}
}
$this->setSetting($key, $value);
} else {
$errors[$key] = \trans('validation.invalid-config-parameter');
}
}
return $errors;
}
/**
* Validates password policy rule.
*
* @param string $rule Policy rule
*
* @return ?string An error message on error, Null otherwise
*/
protected function validatePasswordPolicyRule(string $rule): ?string
{
$regexp = [
'min:[0-9]+', 'max:[0-9]+', 'upper', 'lower', 'digit', 'special', 'last:[0-9]+'
];
if (empty($rule) || !preg_match('/^(' . implode('|', $regexp) . ')$/', $rule)) {
return \trans('validation.invalid-password-policy');
}
$systemPolicy = \App\Rules\Password::parsePolicy(\config('app.password_policy'));
// Min/Max values cannot exceed the system defaults, i.e. if system policy
// is min:5, user's policy cannot be set to a smaller number.
if (!empty($systemPolicy['min']) && strpos($rule, 'min:') === 0) {
$value = trim(substr($rule, 4));
if ($value < $systemPolicy['min']) {
return \trans('validation.password-policy-min-len-error', ['min' => $systemPolicy['min']]);
}
}
if (!empty($systemPolicy['max']) && strpos($rule, 'max:') === 0) {
$value = trim(substr($rule, 4));
if ($value > $systemPolicy['max']) {
return \trans('validation.password-policy-max-len-error', ['max' => $systemPolicy['max']]);
}
}
if (!empty($systemPolicy['last']) && strpos($rule, 'last:') === 0) {
$value = trim(substr($rule, 5));
if ($value < $systemPolicy['last']) {
return \trans('validation.password-policy-last-error', ['last' => $systemPolicy['last']]);
}
}
return null;
}
}

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