protected PasswordAuthentication getPasswordAuthentication()

in taverna-credential-manager-impl/src/main/java/org/apache/taverna/security/credentialmanager/impl/CredentialManagerAuthenticator.java [60:130]

64 lines of code
17 McCabe index (conditional complexity)


	protected PasswordAuthentication getPasswordAuthentication() {
		if (getRequestorType().equals(PROXY)) {
			String password = System.getProperty("http.proxyPassword");
			String username = System.getProperty("http.proxyUser");
			if (username == null || password == null)
				// No proxy authentication set
				return null;

			return new PasswordAuthentication(username, password.toCharArray());
		}

		URI uri;
		if (getRequestingURL() != null) {
			try {
				uri = getRequestingURL().toURI();
			} catch (URISyntaxException e) {
				logger.warn("Unsupported request (invalid URL) for "
						+ getRequestingURL());
				return null;
			}
		} else {
			// Construct an URI of socket://hostname:port
			String host = getRequestingHost();
			if (host == null)
				// Use IP address
				host = getRequestingSite().getHostAddress();
			int port = getRequestingPort();
			if (host == null || port < 0) {
				logger.warn("Unsupported request for " + getRequestingScheme()
						+ " " + getRequestingSite());
				return null;
			}
			uri = URI.create("socket://" + host + ":" + port);
		}

		if (credManager == null) {
			logger.warn("No Credential Manager");
			return null;
		}
		boolean usePathRecursion = false;
		String realm = getRequestingPrompt();
		if (getRequestingScheme().equals("basic")
				|| getRequestingScheme().equals("digest")) {
			usePathRecursion = true;
			if (realm != null && realm.length() > 0)
				try {
					uri = DistinguishedNameParserImpl.resolveUriFragment(uri, realm);
				} catch (URISyntaxException e) {
					logger.warn("Could not URI-encode fragment for realm: "
							+ realm);
				}
		}

		UsernamePassword usernameAndPassword;
		try {
			usernameAndPassword = credManager.getUsernameAndPasswordForService(uri,
					usePathRecursion, realm);
		} catch (CMException e) {
			logger.warn("Could not get username and password for " + uri, e);
			return null;
		}
		if (usernameAndPassword == null) {
			logger.warn("No username/password found for " + uri);
			return null;
		}
		PasswordAuthentication pwAuth = new PasswordAuthentication(
				usernameAndPassword.getUsername(), usernameAndPassword
						.getPassword());
		usernameAndPassword.resetPassword();
		return pwAuth;
	}