add http_get_cache

2026-01-20 23:18:39 -08:00
parent 572c0789b7
commit 811e884481
168 changed files with 37335 additions and 0 deletions
@@ -0,0 +1,75 @@
+import 'package:collection/collection.dart';
+import 'package:http/http.dart';
+
+import 'cache_control.dart';
+import 'date_parser.dart';
+
+class RequestHeaders {
+  final Map<String, String> value;
+  RequestHeaders(this.value);
+
+  static DateParser dateParser = const DateParser();
+
+  String getValue(String key) {
+    final result = value.entries.firstWhere(
+      (e) => e.key.toLowerCase() == key.toLowerCase(),
+      orElse: () => MapEntry(key, ''),
+    );
+    return result.value;
+  }
+
+  String get eTag => getValue('eTag');
+
+  int get age => int.tryParse(getValue('Age')) ?? 0;
+
+  int? get lastModified => dateParser(getValue('Last-Modified'))?.toSeconds();
+
+  int? get date => dateParser(getValue('Date'))?.toSeconds();
+
+  int? get expires => dateParser(getValue('Expires'))?.toSeconds();
+
+  int? get created {
+    final lastModifiedKey = value.keys.firstWhereOrNull(
+      (e) => e.toLowerCase() == 'last-modified',
+    );
+    final dateKey = value.keys.firstWhereOrNull(
+      (e) => e.toLowerCase() == 'date',
+    );
+    final key = lastModifiedKey ?? dateKey;
+    if (key != null) {
+      final d = dateParser(value[key]!);
+      if (d != null) return d.millisecondsSinceEpoch;
+    }
+    return null;
+  }
+}
+
+extension BaseRequestCCUtils on BaseRequest {
+  RequestHeaders get requestHeaders {
+    return RequestHeaders(headers);
+  }
+
+  RequestCacheControl get cacheControl {
+    return RequestCacheControl(requestHeaders.getValue('cache-control'));
+  }
+}
+
+extension StreamedResponseCCUtils on StreamedResponse {
+  RequestHeaders get requestHeaders {
+    return RequestHeaders(headers);
+  }
+
+  ResponseCacheControl get cacheControl {
+    return ResponseCacheControl(requestHeaders.getValue('cache-control'));
+  }
+}
+
+extension ResponseCCUtils on Response {
+  RequestHeaders get requestHeaders {
+    return RequestHeaders(headers);
+  }
+
+  ResponseCacheControl get cacheControl {
+    return ResponseCacheControl(requestHeaders.getValue('cache-control'));
+  }
+}