refactor(req/res): new request/response structure

src/http/handler.c

@@ -0,0 +1,68 @@
+#include "http/handler.h"
+#include "utils/debug.h"
+#include <myclib/mystring.h>
+#include <string.h>
+#include <sys/stat.h>
+
+/* Sanitize and resolve file path */
+static string_s *resolve_file_path(const char *url_path, cws_handler_config_s *config) {
+	string_s *full_path = string_new(config->root_dir, 256);
+
+	if (strcmp(url_path, "/") == 0) {
+		string_append(full_path, "/");
+		string_append(full_path, config->index_file);
+		return full_path;
+	}
+
+	string_append(full_path, url_path);
+
+	return full_path;
+}
+
+static bool file_exists(const char *filepath) {
+	struct stat st;
+	return stat(filepath, &st) == 0 && S_ISREG(st.st_mode);
+}
+
+cws_response_s *cws_handler_static_file(cws_request_s *request, cws_handler_config_s *config) {
+	if (!request || !config) {
+		return cws_response_error(HTTP_INTERNAL_ERROR, "Invalid request or configuration");
+	}
+
+	if (request->method != HTTP_GET) {
+		return cws_handler_not_implemented(request);
+	}
+
+	string_s *filepath = resolve_file_path(string_cstr(request->path), config);
+	const char *path = string_cstr(filepath);
+
+	CWS_LOG_DEBUG("Resolved path: %s", path);
+
+	if (!file_exists(path)) {
+		string_free(filepath);
+		return cws_handler_not_found(request);
+	}
+
+	cws_response_s *response = cws_response_new(HTTP_OK);
+	if (!response) {
+		string_free(filepath);
+		return cws_response_error(HTTP_INTERNAL_ERROR, "Failed to create response");
+	}
+
+	cws_response_set_body_file(response, path);
+	string_free(filepath);
+
+	CWS_LOG_DEBUG("Serving file: %s (%zu bytes)", path, response->content_length);
+
+	return response;
+}
+
+cws_response_s *cws_handler_not_found(cws_request_s *request) {
+	(void)request;
+	return cws_response_error(HTTP_NOT_FOUND, "The requested resource was not found.");
+}
+
+cws_response_s *cws_handler_not_implemented(cws_request_s *request) {
+	(void)request;
+	return cws_response_error(HTTP_NOT_IMPLEMENTED, "Method not implemented.");
+}