Merge pull request #239 from ASAP-as-soon-as-possible/feat/#238

#238 [refactor] 회의 ID 디코딩 로직 리팩토링

src/main/java/com/asap/server/config/WebConfig.java

@@ -1,6 +1,6 @@
 package com.asap.server.config;
 
-import com.asap.server.config.resolver.meeting.MeetingPathResolver;
+import com.asap.server.config.resolver.meeting.MeetingPathVariableResolver;
 import com.asap.server.config.resolver.user.UserIdResolver;
 import lombok.RequiredArgsConstructor;
 import org.springframework.context.annotation.Bean;
@@ -17,7 +17,7 @@
 @Configuration
 public class WebConfig implements WebMvcConfigurer {
     private final UserIdResolver userIdResolver;
-    private final MeetingPathResolver meetingPathResolver;
+    private final MeetingPathVariableResolver meetingPathVariableResolver;
 
     @Bean
     public PasswordEncoder getPasswordEncoder() {
@@ -35,7 +35,6 @@ public void addCorsMappings(CorsRegistry registry) {
     @Override
     public void addArgumentResolvers(List<HandlerMethodArgumentResolver> resolvers) {
         resolvers.add(userIdResolver);
-        resolvers.add(meetingPathResolver);
-
+        resolvers.add(meetingPathVariableResolver);
     }
 }

src/main/java/com/asap/server/config/resolver/meeting/MeetingPathVariable.java

@@ -1,7 +1,5 @@
 package com.asap.server.config.resolver.meeting;
 
-import org.springframework.core.annotation.AliasFor;
-
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -10,12 +8,4 @@
 @Target(ElementType.PARAMETER)
 @Retention(RetentionPolicy.RUNTIME)
 public @interface MeetingPathVariable {
-
-    @AliasFor("name")
-    String value() default "";
-
-    @AliasFor("value")
-    String name() default "";
-
-    boolean required() default true;
 }

src/main/java/com/asap/server/config/resolver/meeting/MeetingPathVariableResolver.java

@@ -0,0 +1,42 @@
+package com.asap.server.config.resolver.meeting;
+
+import com.asap.server.common.utils.SecureUrlUtil;
+import com.asap.server.exception.model.BadRequestException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.core.MethodParameter;
+import org.springframework.stereotype.Component;
+import org.springframework.web.bind.support.WebDataBinderFactory;
+import org.springframework.web.context.request.NativeWebRequest;
+import org.springframework.web.method.support.HandlerMethodArgumentResolver;
+import org.springframework.web.method.support.ModelAndViewContainer;
+import org.springframework.web.servlet.HandlerMapping;
+
+import javax.servlet.http.HttpServletRequest;
+import java.util.Map;
+
+import static com.asap.server.exception.Error.INVALID_MEETING_URL_EXCEPTION;
+
+@Component
+@RequiredArgsConstructor
+public class MeetingPathVariableResolver implements HandlerMethodArgumentResolver {
+    private static final String MEETING_PATH_VARIABLE = "meetingId";
+    private final SecureUrlUtil secureUrlUtil;
+
+    @Override
+    public boolean supportsParameter(MethodParameter parameter) {
+        return parameter.hasParameterAnnotation(MeetingPathVariable.class);
+    }
+
+    @Override
+    public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {
+        final HttpServletRequest request = (HttpServletRequest) webRequest.getNativeRequest();
+        final Map<String, String> pathVariables = (Map<String, String>) request.getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE);
+
+        final String meetingId = pathVariables.get(MEETING_PATH_VARIABLE);
+        try {
+            return secureUrlUtil.decodeUrl(meetingId);
+        } catch (NumberFormatException e) {
+            throw new BadRequestException(INVALID_MEETING_URL_EXCEPTION);
+        }
+    }
+}