feat(http): [WIP] implements middleware system

2022-06-23 17:07:04 +02:00
parent ea4a30ca00
commit 58d3b70bee
12 changed files with 820 additions and 0 deletions
@@ -0,0 +1,89 @@
+// ignore_for_file: public_member_api_docs, sort_constructors_first
+// Copyright (C) 2022 WYATT GROUP
+// Please see the AUTHORS file for details.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+import 'package:http/http.dart';
+import 'package:wyatt_http_client/src/models/unfreezed_request.dart';
+import 'package:wyatt_http_client/src/utils/utils.dart';
+
+class MiddlewareRequest {
+  UnfreezedRequest unfreezedRequest;
+  Request httpRequest;
+
+  MiddlewareRequest({
+    required this.unfreezedRequest,
+    required this.httpRequest,
+  });
+
+  MiddlewareRequest copyWith({
+    UnfreezedRequest? unfreezedRequest,
+    Request? httpRequest,
+  }) {
+    return MiddlewareRequest(
+      unfreezedRequest: unfreezedRequest ?? this.unfreezedRequest,
+      httpRequest: httpRequest ?? this.httpRequest,
+    );
+  }
+
+  void updateUnfreezedRequest(UnfreezedRequest unfreezedRequest) {
+    final request = httpRequest;
+    if (unfreezedRequest.headers != null) {
+      request.headers.addAll(unfreezedRequest.headers!);
+    }
+    if (unfreezedRequest.encoding != null) {
+      request.encoding = unfreezedRequest.encoding!;
+    }
+    if (unfreezedRequest.body != null) {
+      final body = unfreezedRequest.body;
+      if (body is String) {
+        request.body = body;
+      } else if (body is List) {
+        request.bodyBytes = body.cast<int>();
+      } else if (body is Map) {
+        request.bodyFields = body.cast<String, String>();
+      } else {
+        throw ArgumentError('Invalid request body "$body".');
+      }
+    }
+    this.unfreezedRequest = unfreezedRequest;
+    httpRequest = request;
+  }
+
+  void updateHttpRequest({
+    String? method,
+    Uri? url,
+    Map<String, String>? headers,
+    int? maxRedirects,
+    bool? followRedirects,
+    bool? persistentConnection,
+    String? body,
+  }) {
+    httpRequest = Utils.copyRequestWith(
+      httpRequest,
+      method: method,
+      url: url,
+      headers: headers,
+      maxRedirects: maxRedirects,
+      followRedirects: followRedirects,
+      persistentConnection: persistentConnection,
+      body: body,
+    ) as Request;
+  }
+
+  @override
+  String toString() => 'MiddlewareRequest(unfreezedRequest: '
+      '$unfreezedRequest, httpRequest: $httpRequest)';
+}