feat: implement method support check in Router for HTTP requests

webserv/router/Router.cpp

@@ -1,4 +1,4 @@
-#include <webserv/router/Router.hpp>
+#include "webserv/config/directive/ADirective.hpp"
 
 #include <webserv/config/ConfigManager.hpp> // for ConfigManager
 #include <webserv/config/ServerConfig.hpp>  // for ServerConfig
@@ -7,15 +7,29 @@
 #include <webserv/handler/URIParser.hpp>    // for URIParser
 #include <webserv/http/HttpHeaders.hpp>     // for HttpHeaders
 #include <webserv/log/Log.hpp>              // for LOCATION, Log
+#include <webserv/router/Router.hpp>
 
+#include <algorithm>
 #include <memory>   // for unique_ptr
 #include <optional> // for optional
 #include <string>   // for basic_string, string
+#include <vector>
 
 class LocationConfig;
 
 Router::Router() {}
 
+bool Router::isMethodSupported(const std::string &method, const LocationConfig &location)
+{
+    const ADirective *allowedMethods = location.getDirective("allowed_methods");
+    if (allowedMethods == nullptr || !allowedMethods->getValue().try_get<std::vector<std::string>>().has_value())
+    {
+        return true;
+    }
+    auto methods = allowedMethods->getValue().get<std::vector<std::string>>();
+    return std::ranges::find(methods, method) != methods.end();
+}
+
 std::unique_ptr<HttpResponse> Router::handleRequest(const HttpRequest &request)
 {
     Log::trace(LOCATION);
@@ -37,7 +51,10 @@ std::unique_ptr<HttpResponse> Router::handleRequest(const HttpRequest &request)
     {
         return ErrorHandler::getErrorResponse(404, config);
     }
-
+    if (!isMethodSupported(method, *location))
+    {
+        return ErrorHandler::getErrorResponse(405, config);
+    }
     FileHandler fileHandler(location, uriParser);
     return fileHandler.getResponse();
 }

webserv/router/Router.hpp

@@ -19,4 +19,5 @@ class Router
 
   private:
     [[nodiscard]] const LocationConfig *getLocation(const std::string &path, const ServerConfig &serverConfig) const;
+    [[nodiscard]] static bool isMethodSupported(const std::string &method, const LocationConfig &location);
 };