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<?php |
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namespace SilverStripe\MFA; |
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use SilverStripe\Control\HTTPRequest; |
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use SilverStripe\MFA\Extensions\MemberExtension; |
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use SilverStripe\Security\Member; |
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/** |
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* This class provides an interface to store data in session during an MFA process. This is implemented as a measure to |
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* prevent bleeding state between individual MFA auth types |
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* |
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* @package SilverStripe\MFA |
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*/ |
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class SessionStore |
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{ |
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const SESSION_KEY = 'thing'; |
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/** |
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* The member that is currently going through the MFA process |
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* |
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* @var Member |
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*/ |
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protected $member; |
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/** |
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* A string representing the current authentication method that is underway |
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* |
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* @var string |
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*/ |
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protected $method; |
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/** |
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* Any state that the current authentication method needs to retain while it is underway |
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* |
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* @var array |
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*/ |
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protected $state = []; |
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/** |
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* Create a store from the given request getting any initial state from the session of the request |
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* |
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* @param HTTPRequest $request |
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* @return SessionStore |
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*/ |
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public static function create(HTTPRequest $request) |
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{ |
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$state = $request->getSession()->get(static::SESSION_KEY); |
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$new = new static; |
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if ($state) { |
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$new->setMethod($state['method']); |
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$new->setState($state['state']); |
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if ($state['member']) { |
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$new->setMember(Member::get_by_id($state['member'])); |
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} |
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} |
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return $new; |
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} |
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/** |
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* @return Member|MemberExtension |
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*/ |
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public function getMember() |
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{ |
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return $this->member; |
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} |
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/** |
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* @param Member $member |
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* @return $this |
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*/ |
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public function setMember(Member $member) |
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{ |
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// Early return if there's no change |
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if ($this->member && $this->member->ID === $member->ID) { |
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return $this; |
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} |
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// If the member has changed we should null out the method that's underway and the state of it |
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$this->resetMethod(); |
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$this->member = $member; |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function getMethod() |
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{ |
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return $this->method; |
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} |
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/** |
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* @param string $method |
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* @return $this |
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*/ |
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public function setMethod($method) |
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{ |
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$this->method = $method; |
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return $this; |
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} |
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/** |
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* @return array |
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*/ |
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public function getState() |
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{ |
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return $this->state; |
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} |
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/** |
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* @param array $state |
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* @return $this |
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*/ |
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public function setState(array $state) |
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{ |
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$this->state = $state; |
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return $this; |
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} |
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/** |
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* Save this store into the session of the given request |
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* |
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* @param HTTPRequest $request |
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* @return $this |
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*/ |
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public function save(HTTPRequest $request) |
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{ |
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$request->getSession()->set(static::SESSION_KEY, $this->build()); |
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return $this; |
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} |
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public static function clear(HTTPRequest $request) |
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{ |
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$request->getSession()->clear(static::SESSION_KEY); |
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} |
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protected function resetMethod() |
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{ |
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$this->setMethod(null)->setState([]); |
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} |
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protected function build() |
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{ |
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return [ |
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'member' => $this->getMember() ? $this->getMember()->ID : null, |
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'method' => $this->getMethod(), |
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'state' => $this->getState(), |
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]; |
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} |
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} |
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silverstripe /
silverstripe-mfa
