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<?php |
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namespace SilverStripe\MFA\Service; |
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use SilverStripe\Core\Injector\Injectable; |
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use SilverStripe\MFA\Extension\MemberExtension; |
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use SilverStripe\ORM\FieldType\DBDate; |
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use SilverStripe\Security\Member; |
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use SilverStripe\SiteConfig\SiteConfig; |
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/** |
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* The EnforcementManager class is responsible for making decisions regarding multi factor authentication app flow, |
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* e.g. "is MFA required", "should we redirect to the MFA section", "can the user skip MFA registration" etc. |
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*/ |
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class EnforcementManager |
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{ |
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use Injectable; |
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/** |
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* Whether the current member can skip the multi factor authentication registration process. |
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* |
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* This is determined by a combination of: |
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* - Whether MFA is required or optional |
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* - If MFA is required, whether there is a grace period |
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* - If MFA is required and there is a grace period, whether we're currently within that timeframe |
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* |
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* @param Member&MemberExtension $member |
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* @return bool |
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*/ |
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public function canSkipMFA(Member $member) |
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{ |
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if ($this->isMFARequired()) { |
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return false; |
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} |
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// If they've already registered MFA methods we will not allow them to skip the authentication process |
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$registeredMethods = $member->RegisteredMFAMethods(); |
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if ($registeredMethods->exists()) { |
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return false; |
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} |
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// MFA is optional, or is required but might be within a grace period (see isMFARequired) |
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return true; |
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} |
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/** |
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* Whether the authentication process should redirect the user to multi factor authentication registration or |
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* login. |
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* |
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* This is determined by a combination of: |
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* - Whether MFA is required or optional |
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* - Whether the user has registered MFA methods already |
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* - If the user doesn't have any registered MFA methods already, and MFA is optional, whether the user has opted |
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* to skip the registration process |
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* |
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* Note that in determining this, we ignore whether or not MFA is enabled for the site in general. |
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* |
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* @param Member&MemberExtension $member |
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* @return bool |
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*/ |
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public function shouldRedirectToMFA(Member $member) |
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{ |
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$isRequired = $this->isMFARequired(); |
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if ($isRequired) { |
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return true; |
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} |
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$hasSkipped = $member->HasSkippedMFARegistration; |
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if (!$hasSkipped) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Whether multi factor authentication is required for site members. This also takes into account whether a |
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* grace period is set and whether we're currently inside the window for it. |
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* |
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* Note that in determining this, we ignore whether or not MFA is enabled for the site in general. |
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* |
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* @return bool |
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*/ |
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public function isMFARequired() |
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{ |
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$siteConfig = SiteConfig::current_site_config(); |
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$isRequired = $siteConfig->MFARequired; |
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if (!$isRequired) { |
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return false; |
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} |
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$gracePeriod = $siteConfig->MFAGracePeriodExpires; |
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if ($isRequired && !$gracePeriod) { |
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return true; |
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} |
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/** @var DBDate $gracePeriodDate */ |
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$gracePeriodDate = $siteConfig->dbObject('MFAGracePeriodExpires'); |
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if ($isRequired && $gracePeriodDate->InPast()) { |
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return true; |
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} |
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// MFA is required, a grace period is set, and it's in the future |
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return false; |
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} |
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} |
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silverstripe /
silverstripe-mfa
