backend/restservice/src/main/java/com/plannaplan/controllers/TokenController.java

package com.plannaplan.controllers;

import com.plannaplan.exceptions.UserNotFoundException;
import com.plannaplan.security.CasValidationExcepiton;
import com.plannaplan.security.CasValidator;
import com.plannaplan.services.UserService;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
@CrossOrigin
public class TokenController {

    public static String SERVICE_URL = "http://localhost:3000";

    @Autowired
    private UserService userService;

    @GetMapping("/token")
    public ResponseEntity<String> getToken(@RequestParam("ticket") final String ticket) {
        CasValidator validator = new CasValidator(SERVICE_URL, ticket);

        try {
            String authority = validator.validate();
            String token = this.userService.login(authority);
            return new ResponseEntity<>(token, HttpStatus.OK);
        } catch (CasValidationExcepiton e) {
            return new ResponseEntity<>("Wrong ticket", HttpStatus.UNAUTHORIZED);
        } catch (UserNotFoundException e) {
            return new ResponseEntity<>("User not found", HttpStatus.NOT_FOUND);
        } catch (Exception e) {
            return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
        }

    }
}