web/src/main/java/org/springframework/security/web/authentication/preauth/AbstractPreAuthenticatedProcessingFilter.java
private void doAuthenticate(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
		Authentication authResult;

		Object principal = getPreAuthenticatedPrincipal(request);
		Object credentials = getPreAuthenticatedCredentials(request);

		if (principal == null) {
			if (logger.isDebugEnabled()) {
				logger.debug("No pre-authenticated principal found in request");
			}

			return;
		}

		if (logger.isDebugEnabled()) {
			logger.debug("preAuthenticatedPrincipal = " + principal
					+ ", trying to authenticate");
		}

		try {
			PreAuthenticatedAuthenticationToken authRequest = new PreAuthenticatedAuthenticationToken(
					principal, credentials);
			authRequest.setDetails(authenticationDetailsSource.buildDetails(request));
			authResult = authenticationManager.authenticate(authRequest);
			successfulAuthentication(request, response, authResult);
		}
		catch (AuthenticationException failed) {
			unsuccessfulAuthentication(request, response, failed);

			if (!continueFilterChainOnUnsuccessfulAuthentication) {
				throw failed;
			}
		}
	}
private void doAuthenticate(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
		Authentication authResult;

		Object principal = getPreAuthenticatedPrincipal(request);
		Object credentials = getPreAuthenticatedCredentials(request);

		if (principal == null) {
			if (logger.isDebugEnabled()) {
				logger.debug("No pre-authenticated principal found in request");
			}

			return;
		}

		if (logger.isDebugEnabled()) {
			logger.debug("preAuthenticatedPrincipal = " + principal
					+ ", trying to authenticate");
		}

		try {
			PreAuthenticatedAuthenticationToken authRequest = new PreAuthenticatedAuthenticationToken(
					principal, credentials);
			authRequest.setDetails(authenticationDetailsSource.buildDetails(request));
			authResult = authenticationManager.authenticate(authRequest);
			successfulAuthentication(request, response, authResult);
		}
		catch (AuthenticationException failed) {
			unsuccessfulAuthentication(request, response, failed);

			if (!continueFilterChainOnUnsuccessfulAuthentication) {
				throw failed;
			}
		}
	}
private void doAuthenticate ( HttpServletRequest request , HttpServletResponse response ) throws IOException , ServletException { Authentication authResult ; Object principal = getPreAuthenticatedPrincipal ( request ) ; Object credentials = getPreAuthenticatedCredentials ( request ) ; if ( principal == null ) { if ( logger . isDebugEnabled ( ) ) { logger . debug ( "No pre-authenticated principal found in request" ) ; } return ; } if ( logger . isDebugEnabled ( ) ) { logger . debug ( "preAuthenticatedPrincipal = " + principal + ", trying to authenticate" ) ; } try { PreAuthenticatedAuthenticationToken authRequest = new PreAuthenticatedAuthenticationToken ( principal , credentials ) ; authRequest . setDetails ( authenticationDetailsSource . buildDetails ( request ) ) ; authResult = authenticationManager . authenticate ( authRequest ) ; successfulAuthentication ( request , response , authResult ) ; } catch ( AuthenticationException failed ) { unsuccessfulAuthentication ( request , response , failed ) ; if ( ! continueFilterChainOnUnsuccessfulAuthentication ) { throw failed ; } } }
Do the actual authentication for a pre-authenticated user.
Do the actual authentication for a pre - authenticated user .