User agent fields added to ALL prices URLs (except proof file URLs)

Impacted files:
* `api_prices_test.dart`: test for new method `getFileUrl`
* `open_prices_api_client.dart`: similar URI user agent management as off-dart
* `proof.dart`: minor fix

lib/src/open_prices_api_client.dart

@@ -45,11 +45,13 @@ class OpenPricesAPIClient {
     required final String path,
     final Map<String, dynamic>? queryParameters,
     final UriProductHelper uriHelper = uriHelperFoodProd,
+    final bool? addUserAgentParameters,
   }) =>
       uriHelper.getUri(
         path: path,
         queryParameters: queryParameters,
         forcedHost: _getHost(uriHelper),
+        addUserAgentParameters: addUserAgentParameters,
       );
 
   static Future<MaybeError<GetPricesResult>> getPrices(
@@ -319,14 +321,8 @@ class OpenPricesAPIClient {
     required final String bearerToken,
     final UriProductHelper uriHelper = uriHelperFoodProd,
   }) async {
-    final String? appName = OpenFoodAPIConfiguration.userAgent?.name;
     final Uri uri = getUri(
       path: '/api/v1/prices',
-      queryParameters: appName == null
-          ? null
-          : <String, String>{
-              'app_name': appName,
-            },
       uriHelper: uriHelper,
     );
     final StringBuffer body = StringBuffer();
@@ -440,14 +436,8 @@ class OpenPricesAPIClient {
     required final String bearerToken,
     final UriProductHelper uriHelper = uriHelperFoodProd,
   }) async {
-    final String? appName = OpenFoodAPIConfiguration.userAgent?.name;
     final Uri uri = getUri(
       path: '/api/v1/proofs/upload',
-      queryParameters: appName == null
-          ? null
-          : <String, String>{
-              'app_name': appName,
-            },
       uriHelper: uriHelper,
     );
 

lib/src/prices/proof.dart

@@ -55,5 +55,6 @@ class Proof extends JsonObject {
           : OpenPricesAPIClient.getUri(
               path: 'img/$filePath',
               uriHelper: uriProductHelper,
+              addUserAgentParameters: false,
             );
 }

test/api_prices_test.dart

@@ -1,3 +1,5 @@
+import 'package:http/http.dart' as http;
+
 import 'package:http_parser/http_parser.dart';
 import 'package:openfoodfacts/openfoodfacts.dart';
 import 'package:test/test.dart';
@@ -8,6 +10,7 @@ void main() {
   const UriProductHelper uriHelper = uriHelperFoodTest;
   const User user = TestConstants.TEST_USER;
   const String invalidBearerToken = 'invalid bearer token';
+  const int HTTP_OK = 200;
 
   group('$OpenPricesAPIClient default', () {
     test('getStatus', () async {
@@ -610,6 +613,11 @@ void main() {
       expect(maybeProof.value.mimetype, proof.mimetype);
       expect(maybeProof.value.created, proof.created);
       expect(maybeProof.value.filePath, proof.filePath);
+      if (proof.filePath != null) {
+        final Uri uri = proof.getFileUrl(uriProductHelper: uriHelper)!;
+        final http.Response response = await http.get(uri);
+        expect(response.statusCode, HTTP_OK);
+      }
     });
 
     test('upload', () async {