implementing Custom Authentication Provider in Spring Security for a Multi-Tenant Application
I'm dealing with I'm optimizing some code but Quick question that's been bugging me - I'm currently implementing custom authentication for a multi-tenant application using Spring Security 5.4. I've defined a custom `AuthenticationProvider` to handle tenant-specific authentication logic, but I'm working with issues where the authentication fails silently without throwing any exceptions. Here’s a snippet of my `AuthenticationProvider` implementation: ```java public class CustomAuthenticationProvider implements AuthenticationProvider { @Override public Authentication authenticate(Authentication authentication) throws AuthenticationException { String username = authentication.getName(); String password = (String) authentication.getCredentials(); String tenantId = extractTenantIdFromRequest(); // Custom method to get tenant ID // Implement your authentication logic here // For example, querying the database for user credentials UserDetails userDetails = userDetailsService.loadUserByUsernameAndTenant(username, tenantId); if (userDetails == null) { throw new BadCredentialsException("Authentication failed for user: " + username); } if (!passwordEncoder.matches(password, userDetails.getPassword())) { throw new BadCredentialsException("Invalid password for user: " + username); } return new UsernamePasswordAuthenticationToken(userDetails, password, userDetails.getAuthorities()); } @Override public boolean supports(Class<?> authentication) { return authentication.equals(UsernamePasswordAuthenticationToken.class); } } ``` I've registered this provider in my security configuration as follows: ```java @Override protected void configure(AuthenticationManagerBuilder auth) throws Exception { auth.authenticationProvider(customAuthenticationProvider()); } ``` However, when I try to authenticate a user, the process completes without throwing any errors, but the user is not authenticated. I've also added logging statements within the `authenticate` method, but none of them are triggered, which suggests the method is never reached. I’ve verified that my user details service works correctly when called outside of this authentication context. I've also checked that my security filter chain is set up properly, and I’m using Spring Boot 2.5.4. I've tried clearing the security context before each authentication attempt but that didn't help. Has anyone faced similar issues with custom authentication providers in Spring Security for multi-tenant applications? Any insights or solutions would be greatly appreciated. For context: I'm using Java on macOS. Am I missing something obvious? My development environment is macOS. What's the correct way to implement this? This is my first time working with Java LTS. Has anyone dealt with something similar?