我们成功地按照OP的描述使它正常工作了,希望其他人也可以使用这个解决方案。这是我们所做的:
像这样设置安全上下文:
<security:http realm="Protected API" use-expressions="true" auto-config="false" create-session="stateless" entry-point-ref="CustomAuthenticationEntryPoint">
<security:custom-filter ref="authenticationTokenProcessingFilter" position="FORM_LOGIN_FILTER" />
<security:intercept-url pattern="/authenticate" access="permitAll"/>
<security:intercept-url pattern="/**" access="isAuthenticated()" />
</security:http>
<bean id="CustomAuthenticationEntryPoint"
class="com.demo.api.support.spring.CustomAuthenticationEntryPoint" />
<bean id="authenticationTokenProcessingFilter"
class="com.demo.api.support.spring.AuthenticationTokenProcessingFilter" >
<constructor-arg ref="authenticationManager" />
</bean>
如您所见,我们创建了自定义的AuthenticationEntryPoint
,其基本上只是在过滤器链中由我们的AuthenticationTokenProcessingFilter
进行身份验证失败时返回401未经授权
。
CustomAuthenticationEntryPoint:
public class CustomAuthenticationEntryPoint implements AuthenticationEntryPoint {
@Override
public void commence(HttpServletRequest request, HttpServletResponse response,
AuthenticationException authException) throws IOException, ServletException {
response.sendError( HttpServletResponse.SC_UNAUTHORIZED, "Unauthorized: Authentication token was either missing or invalid." );
}
}
AuthenticationTokenProcessingFilter:
身份验证令牌处理过滤器。
public class AuthenticationTokenProcessingFilter extends GenericFilterBean {
@Autowired UserService userService;
@Autowired TokenUtils tokenUtils;
AuthenticationManager authManager;
public AuthenticationTokenProcessingFilter(AuthenticationManager authManager) {
this.authManager = authManager;
}
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
@SuppressWarnings("unchecked")
Map<String, String[]> parms = request.getParameterMap();
if(parms.containsKey("token")) {
String token = parms.get("token")[0];
if (tokenUtils.validate(token)) {
UserDetails userDetails = tokenUtils.getUserFromToken(token);
UsernamePasswordAuthenticationToken authentication =
new UsernamePasswordAuthenticationToken(userDetails.getUsername(), userDetails.getPassword());
authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails((HttpServletRequest) request));
SecurityContextHolder.getContext().setAuthentication(authManager.authenticate(authentication));
}
}
chain.doFilter(request, response);
}
}
很明显,TokenUtils
包含一些私密(也非常特定于情况的)代码,无法轻易共享。这是它的接口:
public interface TokenUtils {
String getToken(UserDetails userDetails);
String getToken(UserDetails userDetails, Long expiration);
boolean validate(String token);
UserDetails getUserFromToken(String token);
}
那应该可以让你有一个良好的开端。