ContentType with utf-8 not encoded properly in Dart 3.6 #59719
Description
When servicing the following code, it'll throw an exception, Latin1Codec.encode. Looks like the encoding is not used properly
It happens only in Dart 3.6.0. It works fine with 3.5.x.
import "dart:io";
void main() {
HttpServer
.bind(InternetAddress.anyIPv4, 8081)
.then((server) {
server.autoCompress = true;
server.listen((request) {
request.response
..headers.contentType = ContentType("text", "plain", charset: "utf-8")
..writeln('日本語')
..close();
});
});
}
The stack trace:
Invalid argument (string): Contains invalid characters.: "日本語\n"
#0 _UnicodeSubsetEncoder.convert (dart:convert/ascii.dart:85:9)
#1 Latin1Codec.encode (dart:convert/latin1.dart:40:46)
#2 _IOSinkImpl._writeString (dart:_http/http_impl.dart:1064:21)
#3 _IOSinkImpl.writeln (dart:_http/http_impl.dart:1090:5)
#4 main.<anonymous closure>.<anonymous closure> (file:///Users/tomyeh/prj/boeneo/server/test/20807.dart:13:11)
#5 _RootZone.runUnaryGuarded (dart:async/zone.dart:1609:10)
#6 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:366:11)
#7 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:297:7)
#8 _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:777:19)
#9 _StreamController._add (dart:async/stream_controller.dart:651:7)
#10 _StreamController.add (dart:async/stream_controller.dart:606:5)
#11 _HttpServer._handleRequest (dart:_http/http_impl.dart:3339:19)
#12 new _HttpConnection.<anonymous closure> (dart:_http/http_impl.dart:3123:19)
#13 _RootZone.runUnaryGuarded (dart:async/zone.dart:1609:10)
#14 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:366:11)
#15 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:297:7)
#16 _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:777:19)
#17 _StreamController._add (dart:async/stream_controller.dart:651:7)
#18 _StreamController.add (dart:async/stream_controller.dart:606:5)
#19 _HttpParser._headersEnd (dart:_http/http_parser.dart:390:19)
#20 _HttpParser._doParse (dart:_http/http_parser.dart:759:15)
#21 _HttpParser._parse (dart:_http/http_parser.dart:320:7)
#22 _HttpParser._onData (dart:_http/http_parser.dart:887:5)
#23 _RootZone.runUnaryGuarded (dart:async/zone.dart:1609:10)
#24 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:366:11)
#25 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:297:7)
#26 _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:777:19)
#27 _StreamController._add (dart:async/stream_controller.dart:651:7)
#28 _StreamController.add (dart:async/stream_controller.dart:606:5)
#29 _Socket._onData (dart:io-patch/socket_patch.dart:2455:41)
#30 _RootZone.runUnaryGuarded (dart:async/zone.dart:1609:10)
#31 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:366:11)
#32 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:297:7)
#33 _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:777:19)
#34 _StreamController._add (dart:async/stream_controller.dart:651:7)
#35 _StreamController.add (dart:async/stream_controller.dart:606:5)
#36 new _RawSocket.<anonymous closure> (dart:io-patch/socket_patch.dart:1942:33)
#37 _NativeSocket.issueReadEvent.issue (dart:io-patch/socket_patch.dart:1385:14)
#38 _microtaskLoop (dart:async/schedule_microtask.dart:40:21)
#39 _startMicrotaskLoop (dart:async/schedule_microtask.dart:49:5)
#40 _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:118:13)
#41 _RawReceivePort._handleMessage (dart:isolate-patch/isolate_patch.dart:185:5)