129 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
			
		
		
	
	
			129 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
<?php
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namespace BookStack\Access\Controllers;
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use BookStack\Access\Saml2Service;
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use BookStack\Http\Controller;
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use Illuminate\Http\Request;
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use Illuminate\Support\Str;
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class Saml2Controller extends Controller
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{
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    protected Saml2Service $samlService;
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    /**
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     * Saml2Controller constructor.
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     */
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    public function __construct(Saml2Service $samlService)
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    {
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        $this->samlService = $samlService;
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        $this->middleware('guard:saml2');
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    }
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    /**
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     * Start the login flow via SAML2.
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     */
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    public function login()
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    {
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        $loginDetails = $this->samlService->login();
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        session()->flash('saml2_request_id', $loginDetails['id']);
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        return redirect($loginDetails['url']);
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    }
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    /**
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     * Start the logout flow via SAML2.
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     */
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    public function logout()
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    {
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        $logoutDetails = $this->samlService->logout(auth()->user());
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        if ($logoutDetails['id']) {
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            session()->flash('saml2_logout_request_id', $logoutDetails['id']);
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        }
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        return redirect($logoutDetails['url']);
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    }
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    /*
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     * Get the metadata for this SAML2 service provider.
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     */
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    public function metadata()
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    {
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        $metaData = $this->samlService->metadata();
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        return response()->make($metaData, 200, [
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            'Content-Type' => 'text/xml',
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        ]);
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    }
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    /**
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     * Single logout service.
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     * Handle logout requests and responses.
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     */
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    public function sls()
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    {
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        $requestId = session()->pull('saml2_logout_request_id', null);
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        $redirect = $this->samlService->processSlsResponse($requestId) ?? '/';
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        return redirect($redirect);
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    }
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    /**
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     * Assertion Consumer Service start URL. Takes the SAMLResponse from the IDP.
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     * Due to being an external POST request, we likely won't have context of the
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     * current user session due to lax cookies. To work around this we store the
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     * SAMLResponse data and redirect to the processAcs endpoint for the actual
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     * processing of the request with proper context of the user session.
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     */
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    public function startAcs(Request $request)
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    {
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        $samlResponse = $request->get('SAMLResponse', null);
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        if (empty($samlResponse)) {
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            $this->showErrorNotification(trans('errors.saml_fail_authed', ['system' => config('saml2.name')]));
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            return redirect('/login');
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        }
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        $acsId = Str::random(16);
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        $cacheKey = 'saml2_acs:' . $acsId;
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        cache()->set($cacheKey, encrypt($samlResponse), 10);
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        return redirect()->guest('/saml2/acs?id=' . $acsId);
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    }
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    /**
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     * Assertion Consumer Service process endpoint.
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     * Processes the SAML response from the IDP with context of the current session.
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     * Takes the SAML request from the cache, added by the startAcs method above.
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     */
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    public function processAcs(Request $request)
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    {
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        $acsId = $request->get('id', null);
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        $cacheKey = 'saml2_acs:' . $acsId;
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        $samlResponse = null;
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        try {
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            $samlResponse = decrypt(cache()->pull($cacheKey));
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        } catch (\Exception $exception) {
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        }
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        $requestId = session()->pull('saml2_request_id', null);
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        if (empty($acsId) || empty($samlResponse)) {
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            $this->showErrorNotification(trans('errors.saml_fail_authed', ['system' => config('saml2.name')]));
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            return redirect('/login');
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        }
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        $user = $this->samlService->processAcsResponse($requestId, $samlResponse);
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        if (is_null($user)) {
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            $this->showErrorNotification(trans('errors.saml_fail_authed', ['system' => config('saml2.name')]));
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            return redirect('/login');
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        }
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        return redirect()->intended();
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    }
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}
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