componentDidMount()

in src/pages/Logout/Logout.js [16:89]
65 lines of code
23 McCabe index (conditional complexity)

	componentDidMount() {
		var redirectInfo = localStorage.getItem('redirectInfo');

		if (redirectInfo) { // For handling a redirect back from the Cognito Hosted UI
			localStorage.removeItem('redirectInfo');
			var rdJSON = JSON.parse(redirectInfo);
			if (rdJSON['clientID'] && rdJSON['logoutURI']) { // Redirect back to client
				axios.get('/verifyClient', {
					params: {
						client_id: rdJSON['clientID'],
						logout_uri: rdJSON['logoutURI']
					}
				}).then(response => {
					if (response.status === 200) {
						window.location.assign(rdJSON['logoutURI']);
					}
				}).catch(error => {
					console.error(error.response)
					window.location.href = '/';
				});
			}
			else if (rdJSON['responseType'] === "id_token" && rdJSON['clientID'] && rdJSON['redirectURI']) { // Call authorize endpoint to start implicit flow
				let authorizeEndpointPath = '/oauth2/authorize/?response_type=' + rdJSON['responseType']
					+ "&client_id=" + rdJSON['clientID'] + "&redirect_uri=" + rdJSON['redirectURI'];
				window.location.href = authorizeEndpointPath;
			}
			else if (rdJSON['responseType'] && rdJSON['clientID'] && rdJSON['redirectURI'] && rdJSON['codeChallenge'] && rdJSON['codeChallengeMethod']) { // Call authorize endpoint to start PKCE flow
				let authorizeEndpointPath = '/oauth2/authorize/?response_type=' + rdJSON['responseType'] + "&client_id=" + rdJSON['clientID']
					+ "&redirect_uri=" + rdJSON['redirectURI'] + "&code_challenge=" + rdJSON['codeChallenge']
					+ "&code_challenge_method=" + rdJSON['codeChallengeMethod'];
				window.location.href = authorizeEndpointPath;
			}
			else { // Default to redirecting to the broker login page
				window.location.href = '/';
			}
		}
		else { // If the logout endpoint is being called before the user has been logged out
			// Erase the token cookies
			eraseCookie("id_token");
			eraseCookie("access_token");
			eraseCookie("refresh_token");

			// Accept requests according to https://docs.aws.amazon.com/cognito/latest/developerguide/logout-endpoint.html
			let queryStringParams = new URLSearchParams(window.location.search);
			let clientID = queryStringParams.get('client_id');
			let logoutURI = queryStringParams.get('logout_uri');
			let redirectURI = queryStringParams.get('redirect_uri');
			let responseType = queryStringParams.get('response_type');
			let codeChallenge = queryStringParams.get('code_challenge');
			let codeChallengeMethod = queryStringParams.get('code_challenge_method');

			// Store the redirect info in local storage before calling the Cognito Hosted UI to logout
			var redirectObject;
			if (clientID && logoutURI) { // For redirect to client
				redirectObject = { 'clientID': clientID, 'logoutURI': logoutURI };
			}
			else if (responseType === "id_token" && clientID && redirectURI) { // For implicit flow
				redirectObject = { 'clientID': clientID, 'responseType': responseType, 'redirectURI': redirectURI };
			}
			else if (responseType === "code" && clientID && redirectURI && codeChallenge && codeChallengeMethod) { // For PKCE flow
				redirectObject = { 'clientID': clientID, 'responseType': responseType, 'redirectURI': redirectURI, 'codeChallenge': codeChallenge, 'codeChallengeMethod': codeChallengeMethod };
			}
			else {
				redirectObject = { 'redirect': 'broker' };
			}
			localStorage.setItem('redirectInfo', JSON.stringify(redirectObject));

			// We remove the client-id used for last login
			localStorage.removeItem('client-id');

			Auth.signOut(); // Sign the user out
			window.location.reload(); // Reload the page to handle the client redirect
		}
	}