How to use

isAuthenticatePossible

method

in

org.springframework.social.security.provider.SocialAuthenticationService$ConnectionCardinality

private Authentication doAuthentication(SocialAuthenticationService<?> authService, HttpServletRequest request, SocialAuthenticationToken token) {
  try {
    if (!authService.getConnectionCardinality().isAuthenticatePossible()) return null;
    token.setDetails(authenticationDetailsSource.buildDetails(request));
    Authentication success = getAuthenticationManager().authenticate(token);
    Assert.isInstanceOf(SocialUserDetails.class, success.getPrincipal(), "unexpected principle type");
    updateConnections(authService, token, success);
    return success;
  } catch (BadCredentialsException e) {
    // connection unknown, register new user?
    if (signupUrl != null) {
      // store ConnectionData in session and redirect to register page
      addSignInAttempt(request.getSession(), token.getConnection());
      throw new SocialAuthenticationRedirectException(buildSignupUrl(request));
    }
    throw e;
  }
}

private Authentication doAuthentication(SocialAuthenticationService<?> authService, HttpServletRequest request, SocialAuthenticationToken token) {
  try {
    if (!authService.getConnectionCardinality().isAuthenticatePossible()) return null;
    token.setDetails(authenticationDetailsSource.buildDetails(request));
    Authentication success = getAuthenticationManager().authenticate(token);
    Assert.isInstanceOf(SocialUserDetails.class, success.getPrincipal(), "unexpected principle type");
    updateConnections(authService, token, success);            
    return success;
  } catch (BadCredentialsException e) {
    // connection unknown, register new user?
    if (signupUrl != null) {
      // store ConnectionData in session and redirect to register page
      sessionStrategy.setAttribute(new ServletWebRequest(request), ProviderSignInAttempt.SESSION_ATTRIBUTE, new ProviderSignInAttempt(token.getConnection()));
      throw new SocialAuthenticationRedirectException(buildSignupUrl(request));
    }
    throw e;
  }
}

private Authentication doAuthentication(SocialAuthenticationService<?> authService, HttpServletRequest request, SocialAuthenticationToken token) {
  try {
    if (!authService.getConnectionCardinality().isAuthenticatePossible()) return null;
    token.setDetails(authenticationDetailsSource.buildDetails(request));
    Authentication success = getAuthenticationManager().authenticate(token);
    Assert.isInstanceOf(SocialUserDetails.class, success.getPrincipal(), "unexpected principle type");
    updateConnections(authService, token, success);            
    return success;
  } catch (BadCredentialsException e) {
    // connection unknown, register new user?
    if (signupUrl != null) {
      // store ConnectionData in session and redirect to register page
      sessionStrategy.setAttribute(new ServletWebRequest(request), ProviderSignInAttempt.SESSION_ATTRIBUTE, new ProviderSignInAttempt(token.getConnection()));
      throw new SocialAuthenticationRedirectException(buildSignupUrl(request));
    }
    throw e;
  }
}