Proper CORS mappings.

src/main/java/fr/unistra/sil/erp/back/WebMvcConfig.java

@@ -16,6 +16,7 @@ import java.sql.DriverManager;
 import java.sql.SQLException;
 import java.util.logging.Level;
 import java.util.logging.Logger;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
 
 /**
  * Main configuration file for the application.
@@ -107,6 +108,16 @@ public class WebMvcConfig implements WebMvcConfigurer {
     public void addInterceptors(InterceptorRegistry registry) {
         registry.addInterceptor(new ApiAuthenticationInterceptor(this.env.getRequiredProperty("api.key"))).addPathPatterns(API_PREFIX + "**");
     }
+    
+    /**
+     * CORS mappings.
+     * @param cr Spring's CORS Registry.
+     */
+    @Override
+    public void addCorsMappings(CorsRegistry cr)
+    {
+        cr.addMapping("/**").allowedOrigins("*").allowedMethods("*");
+    }
 
     /**
      * SQL Connection object.

src/main/java/fr/unistra/sil/erp/back/filter/CORSFilter.java

-/*
- * CONTRAT DE LICENCE DE LOGICIEL LIBRE CECILL-B
- * https://cecill.info/licences/Licence_CeCILL-B_V1-fr.html
- */
-package fr.unistra.sil.erp.back.filter;
-
-import java.io.IOException;
-import javax.servlet.FilterChain;
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import org.springframework.stereotype.Component;
-import org.springframework.web.filter.OncePerRequestFilter;
-
-/**
- * Because Spring sucks.
- * 
- * @author BEAUVAIS ANTOINE
- */
-@Component
-public class CORSFilter extends OncePerRequestFilter {
-
-    @Override
-    protected void doFilterInternal(HttpServletRequest hsr, HttpServletResponse hsr1, FilterChain fc) throws ServletException, IOException {
-        hsr1.addHeader("Access-Control-Allow-Origin", "*");
-        fc.doFilter(hsr, hsr1);
-    }
-    
-}

src/main/java/fr/unistra/sil/erp/back/interceptor/api/ApiAuthenticationInterceptor.java

@@ -48,6 +48,9 @@ public class ApiAuthenticationInterceptor implements HandlerInterceptor {
     public boolean preHandle(HttpServletRequest request,
             HttpServletResponse response, Object handler)
     {
+        if(request.getMethod().equals("OPTIONS"))
+            return true;
+        
         if(this.apikey == null)
         {
             response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);