DioEventProcessor: Append http response body (#1557)

Co-authored-by: Manoel Aranda Neto <marandaneto@gmail.com>

CHANGELOG.md

@@ -9,6 +9,9 @@
 [Trace origin](https://develop.sentry.dev/sdk/performance/trace-origin/) indicates what created a trace or a span. Not all transactions and spans contain enough information to tell whether the user or what precisely in the SDK created it. Origin solves this problem. The SDK now sends origin for transactions and spans.
 
 - Add `appHangTimeoutInterval` to `SentryFlutterOptions` ([#1568](https://github.com/getsentry/sentry-dart/pull/1568))
+- DioEventProcessor: Append http response body ([#1557](https://github.com/getsentry/sentry-dart/pull/1557))
+  - This is opt-in and depends on `maxResponseBodySize`
+  - Only for `dio` package
 
 ### Dependencies
 

dart/lib/sentry.dart

@@ -46,3 +46,5 @@ export 'src/utils/url_details.dart';
 export 'src/utils/http_header_utils.dart';
 // ignore: invalid_export_of_internal_element
 export 'src/sentry_trace_origins.dart';
+// ignore: invalid_export_of_internal_element
+export 'src/utils.dart';

dart/lib/src/sentry_options.dart

@@ -13,7 +13,6 @@ import 'diagnostic_logger.dart';
 import 'environment/environment_variables.dart';
 import 'noop_client.dart';
 import 'transport/noop_transport.dart';
-import 'utils.dart';
 import 'version.dart';
 
 // TODO: shutdownTimeout, flushTimeoutMillis

dart/lib/src/utils.dart

@@ -8,9 +8,11 @@ import 'package:meta/meta.dart';
 
 /// Sentry does not take a timezone and instead expects the date-time to be
 /// submitted in UTC timezone.
+@internal
 DateTime getUtcDateTime() => DateTime.now().toUtc();
 
 /// Formats a Date as ISO8601 and UTC with millis precision
+@internal
 String formatDateAsIso8601WithMillisPrecision(DateTime date) {
   var iso = date.toIso8601String();
   final millisecondSeparatorIndex = iso.lastIndexOf('.');
@@ -22,9 +24,10 @@ String formatDateAsIso8601WithMillisPrecision(DateTime date) {
   return '${iso}Z';
 }
 
+@internal
 final utf8JsonEncoder = JsonUtf8Encoder(null, jsonSerializationFallback, null);
 
-@visibleForTesting
+@internal
 Object? jsonSerializationFallback(Object? nonEncodable) {
   if (nonEncodable == null) {
     return null;

dart/test/protocol/breadcrumb_test.dart

@@ -1,7 +1,6 @@
 import 'package:collection/collection.dart';
 import 'package:sentry/sentry.dart';
 import 'package:test/test.dart';
-import 'package:sentry/src/utils.dart';
 
 void main() {
   final timestamp = DateTime.now();

dart/test/sentry_envelope_header_test.dart

@@ -1,6 +1,5 @@
 import 'package:sentry/sentry.dart';
 import 'package:sentry/src/sentry_envelope_header.dart';
-import 'package:sentry/src/utils.dart';
 import 'package:test/test.dart';
 
 import 'mocks.dart';

dart/test/sentry_envelope_item_test.dart

@@ -8,7 +8,6 @@ import 'package:sentry/src/sentry_envelope_item_header.dart';
 import 'package:sentry/src/sentry_item_type.dart';
 import 'package:sentry/src/sentry_tracer.dart';
 import 'package:sentry/src/transport/data_category.dart';
-import 'package:sentry/src/utils.dart';
 import 'package:test/test.dart';
 
 import 'mocks/mock_hub.dart';

dart/test/sentry_envelope_test.dart

@@ -6,7 +6,6 @@ import 'package:sentry/src/sentry_envelope_header.dart';
 import 'package:sentry/src/sentry_envelope_item_header.dart';
 import 'package:sentry/src/sentry_item_type.dart';
 import 'package:sentry/src/sentry_tracer.dart';
-import 'package:sentry/src/utils.dart';
 import 'package:test/test.dart';
 
 import 'mocks.dart';

dart/test/sentry_event_test.dart

@@ -5,7 +5,6 @@
 import 'package:collection/collection.dart';
 import 'package:sentry/sentry.dart';
 import 'package:sentry/src/version.dart';
-import 'package:sentry/src/utils.dart';
 import 'package:test/test.dart';
 
 void main() {

dart/test/sentry_span_test.dart

@@ -1,6 +1,5 @@
 import 'package:sentry/sentry.dart';
 import 'package:sentry/src/sentry_tracer.dart';
-import 'package:sentry/src/utils.dart';
 import 'package:test/test.dart';
 
 import 'mocks/mock_hub.dart';

dart/test/sentry_tracer_test.dart

@@ -1,6 +1,5 @@
 import 'package:sentry/sentry.dart';
 import 'package:sentry/src/sentry_tracer.dart';
-import 'package:sentry/src/utils.dart';
 import 'package:test/test.dart';
 
 import 'mocks.dart';

dio/lib/src/dio_event_processor.dart

@@ -1,5 +1,7 @@
 // ignore_for_file: deprecated_member_use
 
+import 'dart:convert';
+
 import 'package:dio/dio.dart';
 import 'package:sentry/sentry.dart';
 
@@ -62,7 +64,7 @@ class DioEventProcessor implements EventProcessor {
   }
 
   /// Returns the request data, if possible according to the users settings.
-  Object? _getRequestData(dynamic data) {
+  Object? _getRequestData(Object? data) {
     if (!_options.sendDefaultPii) {
       return null;
     }
@@ -87,8 +89,74 @@ class DioEventProcessor implements EventProcessor {
 
     return SentryResponse(
       headers: _options.sendDefaultPii ? headers : null,
-      bodySize: dioError.response?.data?.length as int?,
+      bodySize: _getBodySize(
+        dioError.response?.data,
+        dioError.requestOptions.responseType,
+      ),
       statusCode: response?.statusCode,
+      data: _getResponseData(
+        dioError.response?.data,
+        dioError.requestOptions.responseType,
+      ),
     );
   }
+
+  /// Returns the response data, if possible according to the users settings.
+  Object? _getResponseData(Object? data, ResponseType responseType) {
+    if (!_options.sendDefaultPii || data == null) {
+      return null;
+    }
+    switch (responseType) {
+      case ResponseType.json:
+        // ignore: invalid_use_of_internal_member
+        final jsData = utf8JsonEncoder.convert(data);
+        if (_options.maxResponseBodySize.shouldAddBody(jsData.length)) {
+          return data;
+        }
+        break;
+      case ResponseType.stream:
+        break; // No support for logging stream body.
+      case ResponseType.plain:
+        if (data is String &&
+            _options.maxResponseBodySize.shouldAddBody(data.codeUnits.length)) {
+          return data;
+        }
+        break;
+      case ResponseType.bytes:
+        if (data is List<int> &&
+            _options.maxResponseBodySize.shouldAddBody(data.length)) {
+          return data;
+        }
+        break;
+    }
+    return null;
+  }
+
+  int? _getBodySize(Object? data, ResponseType responseType) {
+    if (data == null) {
+      return null;
+    }
+    switch (responseType) {
+      case ResponseType.json:
+        return json.encode(data).codeUnits.length;
+      case ResponseType.stream:
+        if (data is String) {
+          return data.length;
+        } else {
+          return null;
+        }
+      case ResponseType.plain:
+        if (data is String) {
+          return data.codeUnits.length;
+        } else {
+          return null;
+        }
+      case ResponseType.bytes:
+        if (data is List<int>) {
+          return data.length;
+        } else {
+          return null;
+        }
+    }
+  }
 }