Add authentication

src/main/kotlin/top/fatweb/api/util/ApiResponseMappingHandlerMapping.kt

@@ -0,0 +1,31 @@
+package top.fatweb.api.util
+
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.servlet.mvc.condition.RequestCondition
+import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping
+import top.fatweb.api.annotation.ApiVersion
+import java.lang.reflect.Method
+
+class ApiResponseMappingHandlerMapping : RequestMappingHandlerMapping() {
+    private val versionFlag = "{apiVersion}"
+
+    private fun createCondition(clazz: Class<*>): RequestCondition<ApiVersionCondition>? {
+        val classRequestMapping = clazz.getAnnotation(RequestMapping::class.java)
+        classRequestMapping ?: let { return null }
+        val mappingUrlBuilder = StringBuilder()
+        if (classRequestMapping.value.isNotEmpty()) {
+            mappingUrlBuilder.append(classRequestMapping.value[0])
+        }
+        val mappingUrl = mappingUrlBuilder.toString()
+        if (!mappingUrl.contains(versionFlag)) {
+            return null
+        }
+        val apiVersion = clazz.getAnnotation(ApiVersion::class.java)
+
+        return if (apiVersion == null) ApiVersionCondition(1) else ApiVersionCondition(apiVersion.version)
+    }
+
+    override fun getCustomMethodCondition(method: Method): RequestCondition<*>? = createCondition(method.javaClass)
+
+    override fun getCustomTypeCondition(handlerType: Class<*>): RequestCondition<*>? = createCondition(handlerType)
+}