29. JWT Authorization Filter - Part 1 (#2)

support-portal-backend/src/main/java/net/shyshkin/study/fullstack/supportportal/backend/filter/JwtAuthorizationFilter.java

@@ -0,0 +1,31 @@
+package net.shyshkin.study.fullstack.supportportal.backend.filter;
+
+import lombok.RequiredArgsConstructor;
+import net.shyshkin.study.fullstack.supportportal.backend.constant.SecurityConstants;
+import net.shyshkin.study.fullstack.supportportal.backend.utility.JwtTokenProvider;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.web.filter.OncePerRequestFilter;
+
+import javax.servlet.FilterChain;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+@RequiredArgsConstructor
+public class JwtAuthorizationFilter extends OncePerRequestFilter {
+
+    private final JwtTokenProvider jwtTokenProvider;
+
+    @Override
+    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
+        if (!request.getMethod().equalsIgnoreCase(HttpMethod.OPTIONS.name())) {
+            String authHeader = request.getHeader(HttpHeaders.AUTHORIZATION);
+            if (authHeader != null && authHeader.startsWith(SecurityConstants.TOKEN_PREFIX)) {
+
+            }
+        }
+        filterChain.doFilter(request, response);
+    }
+}