filtre pour interdiction connexion inter-ports

src/main/java/fr/louis/projetprogreseau/api/CORSFilter.java

+package fr.louis.projetprogreseau.api;
+
+import jakarta.ws.rs.container.ContainerRequestContext;
+import jakarta.ws.rs.container.ContainerResponseContext;
+import jakarta.ws.rs.container.ContainerResponseFilter;
+import jakarta.ws.rs.ext.Provider;
+
+/**
+ * pour éviter les interdictions de ports
+ */
+@Provider
+public class CORSFilter implements ContainerResponseFilter {
+    @Override
+    public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext) {
+        responseContext.getHeaders().add("Access-Control-Allow-Origin", "*");
+        responseContext.getHeaders().add("Access-Control-Allow-Headers", "origin, content-type, accept, authorization");
+        responseContext.getHeaders().add("Access-Control-Allow-Credentials", "true");
+        responseContext.getHeaders().add("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS, HEAD");
+    }
+}
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