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<?php |
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namespace Spinen\Discourse\Controllers; |
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use Cviebrock\DiscoursePHP\SSOHelper; |
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use Illuminate\Contracts\Auth\Authenticatable as User; |
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use Illuminate\Contracts\Config\Repository as Config; |
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use Illuminate\Http\Request; |
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use Illuminate\Routing\Controller; |
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use Illuminate\Support\Collection; |
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use Illuminate\Support\Str; |
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/** |
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* Class SsoController |
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* |
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* Controller to process the Discourse SSO request. There is a good bit of logic in here that almost feels like too |
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* much for a controller, but given that this is the only thing that this controller is doing, I am not going to break |
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* it out into a service class. |
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* |
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* @package Spinen\Discourse\Controllers |
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*/ |
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class SsoController extends Controller |
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{ |
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/** |
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* Package configuration |
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* |
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* @var Collection |
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*/ |
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protected $config; |
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/** |
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* SSOHelper Instance |
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* |
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* @var SSOHelper |
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*/ |
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protected $sso; |
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/** |
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* Authenticated user |
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* |
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* @var User |
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*/ |
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protected $user; |
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/** |
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* SsoController constructor. |
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* |
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* @param Config $config |
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* @param SSOHelper $sso |
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*/ |
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public function __construct(Config $config, SSOHelper $sso) |
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{ |
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$this->loadConfigs($config); |
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$this->sso = $sso->setSecret($this->config->get('secret')); |
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} |
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/** |
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* Build out the extra parameters to send to Discourse |
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* |
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* @return array |
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*/ |
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protected function buildExtraParameters() |
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{ |
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return $this->config->get('user') |
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->except(['access', 'email', 'external_id']) |
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->reject([$this, 'nullProperty']) |
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->map([$this, 'parseUserValue']) |
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->map([$this, 'castBooleansToString']) |
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->toArray(); |
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} |
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/** |
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* Make boolean's into string |
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* |
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* The Discourse SSO API does not accept 0 or 1 for false or true. You must send |
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* "false" or "true", so convert any boolean property to the string version. |
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* |
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* @param $property |
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* |
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* @return string |
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*/ |
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public function castBooleansToString($property) |
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{ |
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if (! is_bool($property)) { |
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return $property; |
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} |
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return ($property) ? 'true' : 'false'; |
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} |
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/** |
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* Cache the configs on the object as a collection |
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* |
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* The 'user' property will be an array, so go ahead and convert it to a collection |
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* |
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* @param Config $config |
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*/ |
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protected function loadConfigs(Config $config) |
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{ |
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$this->config = collect($config->get('services.discourse')); |
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$this->config->put('user', collect($this->config->get('user'))); |
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} |
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/** |
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* Process the SSO login request from Discourse |
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* |
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* @param Request $request |
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* |
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* @return mixed |
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* @throws 403 |
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*/ |
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public function login(Request $request) |
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{ |
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$this->user = $request->user(); |
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$access = $this->config->get('user') |
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->get('access', null); |
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if (! is_null($access) && ! $this->parseUserValue($access)) { |
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abort(403); //Forbidden |
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} |
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if (! ($this->sso->validatePayload($payload = $request->get('sso'), $request->get('sig')))) { |
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abort(403); //Forbidden |
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} |
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$query = $this->sso->getSignInString( |
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$this->sso->getNonce($payload), |
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$this->parseUserValue($this->config->get('user') |
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->get('external_id')), |
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$this->parseUserValue($this->config->get('user') |
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->get('email')), |
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$this->buildExtraParameters() |
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); |
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return redirect(Str::finish($this->config->get('url'), '/').'session/sso_login?'.$query); |
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} |
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/** |
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* Check to see if property is null |
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* |
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* @param string $property |
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* @return bool |
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*/ |
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public function nullProperty($property) |
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{ |
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return is_null($property); |
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} |
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/** |
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* Get the property from the user |
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* |
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* If a string is passed in, then get it from the user object, otherwise, return what was given |
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* |
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* @param mixed $property |
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* @return mixed |
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*/ |
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public function parseUserValue($property) |
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{ |
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if (! is_string($property)) { |
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return $property; |
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} |
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return $this->user->{$property}; |
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} |
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} |
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spinen /
laravel-discourse-sso
