Remove unused libraries.
I guess I forgot to remove these when we stopped using them.
R=rnystrom@google.com
Review URL: https://codereview.chromium.org//1993933003 .
diff --git a/lib/src/copy/bytes_builder.dart b/lib/src/copy/bytes_builder.dart
deleted file mode 100644
index 39d44fe..0000000
--- a/lib/src/copy/bytes_builder.dart
+++ /dev/null
@@ -1,215 +0,0 @@
-// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// This is a copy of "dart:io"'s BytesBuilder implementation, from
-// sdk/lib/io/bytes_builder.dart. It's copied here to make it available to
-// non-"dart:io" applications (issue 18348).
-//
-// Because it's copied directly, there are no modifications from the original.
-//
-// This is up-to-date as of sdk revision
-// 86227840d75d974feb238f8b3c59c038b99c05cf.
-import 'dart:math';
-import 'dart:typed_data';
-
-/**
- * Builds a list of bytes, allowing bytes and lists of bytes to be added at the
- * end.
- *
- * Used to efficiently collect bytes and lists of bytes.
- */
-abstract class BytesBuilder {
- /**
- * Construct a new empty [BytesBuilder].
- *
- * If [copy] is true, the data is always copied when added to the list. If
- * it [copy] is false, the data is only copied if needed. That means that if
- * the lists are changed after added to the [BytesBuilder], it may effect the
- * output. Default is `true`.
- */
- factory BytesBuilder({bool copy: true}) {
- if (copy) {
- return new _CopyingBytesBuilder();
- } else {
- return new _BytesBuilder();
- }
- }
-
- /**
- * Appends [bytes] to the current contents of the builder.
- *
- * Each value of [bytes] will be bit-representation truncated to the range
- * 0 .. 255.
- */
- void add(List<int> bytes);
-
- /**
- * Append [byte] to the current contents of the builder.
- *
- * The [byte] will be bit-representation truncated to the range 0 .. 255.
- */
- void addByte(int byte);
-
- /**
- * Returns the contents of `this` and clears `this`.
- *
- * The list returned is a view of the the internal buffer, limited to the
- * [length].
- */
- List<int> takeBytes();
-
- /**
- * Returns a copy of the current contents of the builder.
- *
- * Leaves the contents of the builder intact.
- */
- List<int> toBytes();
-
- /**
- * The number of bytes in the builder.
- */
- int get length;
-
- /**
- * Returns `true` if the buffer is empty.
- */
- bool get isEmpty;
-
- /**
- * Returns `true` if the buffer is not empty.
- */
- bool get isNotEmpty;
-
- /**
- * Clear the contents of the builder.
- */
- void clear();
-}
-
-
-class _CopyingBytesBuilder implements BytesBuilder {
- // Start with 1024 bytes.
- static const int _INIT_SIZE = 1024;
-
- int _length = 0;
- Uint8List _buffer;
-
- void add(List<int> bytes) {
- int bytesLength = bytes.length;
- if (bytesLength == 0) return;
- int required = _length + bytesLength;
- if (_buffer == null) {
- int size = _pow2roundup(required);
- size = max(size, _INIT_SIZE);
- _buffer = new Uint8List(size);
- } else if (_buffer.length < required) {
- // We will create a list in the range of 2-4 times larger than
- // required.
- int size = _pow2roundup(required) * 2;
- var newBuffer = new Uint8List(size);
- newBuffer.setRange(0, _buffer.length, _buffer);
- _buffer = newBuffer;
- }
- assert(_buffer.length >= required);
- if (bytes is Uint8List) {
- _buffer.setRange(_length, required, bytes);
- } else {
- for (int i = 0; i < bytesLength; i++) {
- _buffer[_length + i] = bytes[i];
- }
- }
- _length = required;
- }
-
- void addByte(int byte) => add([byte]);
-
- List<int> takeBytes() {
- if (_buffer == null) return new Uint8List(0);
- var buffer = new Uint8List.view(_buffer.buffer, 0, _length);
- clear();
- return buffer;
- }
-
- List<int> toBytes() {
- if (_buffer == null) return new Uint8List(0);
- return new Uint8List.fromList(
- new Uint8List.view(_buffer.buffer, 0, _length));
- }
-
- int get length => _length;
-
- bool get isEmpty => _length == 0;
-
- bool get isNotEmpty => _length != 0;
-
- void clear() {
- _length = 0;
- _buffer = null;
- }
-
- int _pow2roundup(int x) {
- --x;
- x |= x >> 1;
- x |= x >> 2;
- x |= x >> 4;
- x |= x >> 8;
- x |= x >> 16;
- return x + 1;
- }
-}
-
-
-class _BytesBuilder implements BytesBuilder {
- int _length = 0;
- final List _chunks = [];
-
- void add(List<int> bytes) {
- if (bytes is! Uint8List) {
- bytes = new Uint8List.fromList(bytes);
- }
- _chunks.add(bytes);
- _length += bytes.length;
- }
-
- void addByte(int byte) => add([byte]);
-
- List<int> takeBytes() {
- if (_chunks.length == 0) return new Uint8List(0);
- if (_chunks.length == 1) {
- var buffer = _chunks.single;
- clear();
- return buffer;
- }
- var buffer = new Uint8List(_length);
- int offset = 0;
- for (var chunk in _chunks) {
- buffer.setRange(offset, offset + chunk.length, chunk);
- offset += chunk.length;
- }
- clear();
- return buffer;
- }
-
- List<int> toBytes() {
- if (_chunks.length == 0) return new Uint8List(0);
- var buffer = new Uint8List(_length);
- int offset = 0;
- for (var chunk in _chunks) {
- buffer.setRange(offset, offset + chunk.length, chunk);
- offset += chunk.length;
- }
- return buffer;
- }
-
- int get length => _length;
-
- bool get isEmpty => _length == 0;
-
- bool get isNotEmpty => _length != 0;
-
- void clear() {
- _length = 0;
- _chunks.clear();
- }
-}
diff --git a/lib/src/copy/io_sink.dart b/lib/src/copy/io_sink.dart
deleted file mode 100644
index 0578bdb..0000000
--- a/lib/src/copy/io_sink.dart
+++ /dev/null
@@ -1,145 +0,0 @@
-// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// The following code is copied from sdk/lib/io/io_sink.dart. The "dart:io"
-// implementation isn't used directly to support non-"dart:io" applications.
-//
-// Because it's copied directly, only modifications necessary to support the
-// desired public API and to remove "dart:io" dependencies have been made.
-//
-// This is up-to-date as of sdk revision
-// 86227840d75d974feb238f8b3c59c038b99c05cf.
-import 'dart:async';
-
-class StreamSinkImpl<T> implements StreamSink<T> {
- final StreamConsumer<T> _target;
- Completer _doneCompleter = new Completer();
- Future _doneFuture;
- StreamController<T> _controllerInstance;
- Completer _controllerCompleter;
- bool _isClosed = false;
- bool _isBound = false;
- bool _hasError = false;
-
- StreamSinkImpl(this._target) {
- _doneFuture = _doneCompleter.future;
- }
-
- void add(T data) {
- if (_isClosed) return;
- _controller.add(data);
- }
-
- void addError(error, [StackTrace stackTrace]) {
- _controller.addError(error, stackTrace);
- }
-
- Future addStream(Stream<T> stream) {
- if (_isBound) {
- throw new StateError("StreamSink is already bound to a stream");
- }
- _isBound = true;
- if (_hasError) return done;
- // Wait for any sync operations to complete.
- Future targetAddStream() {
- return _target.addStream(stream)
- .whenComplete(() {
- _isBound = false;
- });
- }
- if (_controllerInstance == null) return targetAddStream();
- var future = _controllerCompleter.future;
- _controllerInstance.close();
- return future.then((_) => targetAddStream());
- }
-
- Future flush() {
- if (_isBound) {
- throw new StateError("StreamSink is bound to a stream");
- }
- if (_controllerInstance == null) return new Future.value(this);
- // Adding an empty stream-controller will return a future that will complete
- // when all data is done.
- _isBound = true;
- var future = _controllerCompleter.future;
- _controllerInstance.close();
- return future.whenComplete(() {
- _isBound = false;
- });
- }
-
- Future close() {
- if (_isBound) {
- throw new StateError("StreamSink is bound to a stream");
- }
- if (!_isClosed) {
- _isClosed = true;
- if (_controllerInstance != null) {
- _controllerInstance.close();
- } else {
- _closeTarget();
- }
- }
- return done;
- }
-
- void _closeTarget() {
- _target.close().then(_completeDoneValue, onError: _completeDoneError);
- }
-
- Future get done => _doneFuture;
-
- void _completeDoneValue(value) {
- if (_doneCompleter == null) return;
- _doneCompleter.complete(value);
- _doneCompleter = null;
- }
-
- void _completeDoneError(error, StackTrace stackTrace) {
- if (_doneCompleter == null) return;
- _hasError = true;
- _doneCompleter.completeError(error, stackTrace);
- _doneCompleter = null;
- }
-
- StreamController<T> get _controller {
- if (_isBound) {
- throw new StateError("StreamSink is bound to a stream");
- }
- if (_isClosed) {
- throw new StateError("StreamSink is closed");
- }
- if (_controllerInstance == null) {
- _controllerInstance = new StreamController<T>(sync: true);
- _controllerCompleter = new Completer();
- _target.addStream(_controller.stream)
- .then(
- (_) {
- if (_isBound) {
- // A new stream takes over - forward values to that stream.
- _controllerCompleter.complete(this);
- _controllerCompleter = null;
- _controllerInstance = null;
- } else {
- // No new stream, .close was called. Close _target.
- _closeTarget();
- }
- },
- onError: (error, stackTrace) {
- if (_isBound) {
- // A new stream takes over - forward errors to that stream.
- _controllerCompleter.completeError(error, stackTrace);
- _controllerCompleter = null;
- _controllerInstance = null;
- } else {
- // No new stream. No need to close target, as it have already
- // failed.
- _completeDoneError(error, stackTrace);
- }
- });
- }
- return _controllerInstance;
- }
-}
-
diff --git a/lib/src/copy/web_socket.dart b/lib/src/copy/web_socket.dart
deleted file mode 100644
index 53460ba..0000000
--- a/lib/src/copy/web_socket.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// The following code is copied from sdk/lib/io/websocket.dart. The "dart:io"
-// implementation isn't used directly to support non-"dart:io" applications.
-//
-// Because it's copied directly, only modifications necessary to support the
-// desired public API and to remove "dart:io" dependencies have been made.
-//
-// This is up-to-date as of sdk revision
-// 86227840d75d974feb238f8b3c59c038b99c05cf.
-/**
- * Web socket status codes used when closing a web socket connection.
- */
-abstract class WebSocketStatus {
- static const int NORMAL_CLOSURE = 1000;
- static const int GOING_AWAY = 1001;
- static const int PROTOCOL_ERROR = 1002;
- static const int UNSUPPORTED_DATA = 1003;
- static const int RESERVED_1004 = 1004;
- static const int NO_STATUS_RECEIVED = 1005;
- static const int ABNORMAL_CLOSURE = 1006;
- static const int INVALID_FRAME_PAYLOAD_DATA = 1007;
- static const int POLICY_VIOLATION = 1008;
- static const int MESSAGE_TOO_BIG = 1009;
- static const int MISSING_MANDATORY_EXTENSION = 1010;
- static const int INTERNAL_SERVER_ERROR = 1011;
- static const int RESERVED_1015 = 1015;
-}
-
-abstract class WebSocket {
- /**
- * Possible states of the connection.
- */
- static const int CONNECTING = 0;
- static const int OPEN = 1;
- static const int CLOSING = 2;
- static const int CLOSED = 3;
-}
diff --git a/lib/src/copy/web_socket_impl.dart b/lib/src/copy/web_socket_impl.dart
deleted file mode 100644
index 31b3efa..0000000
--- a/lib/src/copy/web_socket_impl.dart
+++ /dev/null
@@ -1,861 +0,0 @@
-// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// The following code is copied from sdk/lib/io/websocket_impl.dart. The
-// "dart:io" implementation isn't used directly to support non-"dart:io"
-// applications.
-//
-// Because it's copied directly, only modifications necessary to support the
-// desired public API and to remove "dart:io" dependencies have been made.
-//
-// This is up-to-date as of sdk revision
-// 86227840d75d974feb238f8b3c59c038b99c05cf.
-import 'dart:async';
-import 'dart:convert';
-import 'dart:math';
-import 'dart:typed_data';
-
-import '../web_socket.dart';
-import 'bytes_builder.dart';
-import 'io_sink.dart';
-import 'web_socket.dart';
-
-const String webSocketGUID = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
-
-final _random = new Random();
-
-// Matches _WebSocketOpcode.
-class _WebSocketMessageType {
- static const int NONE = 0;
- static const int TEXT = 1;
- static const int BINARY = 2;
-}
-
-
-class _WebSocketOpcode {
- static const int CONTINUATION = 0;
- static const int TEXT = 1;
- static const int BINARY = 2;
- static const int RESERVED_3 = 3;
- static const int RESERVED_4 = 4;
- static const int RESERVED_5 = 5;
- static const int RESERVED_6 = 6;
- static const int RESERVED_7 = 7;
- static const int CLOSE = 8;
- static const int PING = 9;
- static const int PONG = 10;
- static const int RESERVED_B = 11;
- static const int RESERVED_C = 12;
- static const int RESERVED_D = 13;
- static const int RESERVED_E = 14;
- static const int RESERVED_F = 15;
-}
-
-/**
- * The web socket protocol transformer handles the protocol byte stream
- * which is supplied through the [:handleData:]. As the protocol is processed,
- * it'll output frame data as either a List<int> or String.
- *
- * Important infomation about usage: Be sure you use cancelOnError, so the
- * socket will be closed when the processer encounter an error. Not using it
- * will lead to undefined behaviour.
- */
-// TODO(ajohnsen): make this transformer reusable?
-class _WebSocketProtocolTransformer implements StreamTransformer, EventSink {
- static const int START = 0;
- static const int LEN_FIRST = 1;
- static const int LEN_REST = 2;
- static const int MASK = 3;
- static const int PAYLOAD = 4;
- static const int CLOSED = 5;
- static const int FAILURE = 6;
-
- int _state = START;
- bool _fin = false;
- int _opcode = -1;
- int _len = -1;
- bool _masked = false;
- int _remainingLenBytes = -1;
- int _remainingMaskingKeyBytes = 4;
- int _remainingPayloadBytes = -1;
- int _unmaskingIndex = 0;
- int _currentMessageType = _WebSocketMessageType.NONE;
- int closeCode = WebSocketStatus.NO_STATUS_RECEIVED;
- String closeReason = "";
-
- EventSink _eventSink;
-
- final bool _serverSide;
- final List _maskingBytes = new List(4);
- final BytesBuilder _payload = new BytesBuilder(copy: false);
-
- _WebSocketProtocolTransformer([this._serverSide = false]);
-
- Stream bind(Stream stream) {
- return new Stream.eventTransformed(
- stream,
- (EventSink eventSink) {
- if (_eventSink != null) {
- throw new StateError("WebSocket transformer already used.");
- }
- _eventSink = eventSink;
- return this;
- });
- }
-
- void addError(Object error, [StackTrace stackTrace]) =>
- _eventSink.addError(error, stackTrace);
-
- void close() => _eventSink.close();
-
- /**
- * Process data received from the underlying communication channel.
- */
- void add(Uint8List buffer) {
- int count = buffer.length;
- int index = 0;
- int lastIndex = count;
- if (_state == CLOSED) {
- throw new CompatibleWebSocketException("Data on closed connection");
- }
- if (_state == FAILURE) {
- throw new CompatibleWebSocketException("Data on failed connection");
- }
- while ((index < lastIndex) && _state != CLOSED && _state != FAILURE) {
- int byte = buffer[index];
- if (_state <= LEN_REST) {
- if (_state == START) {
- _fin = (byte & 0x80) != 0;
- if ((byte & 0x70) != 0) {
- // The RSV1, RSV2 bits RSV3 must be all zero.
- throw new CompatibleWebSocketException("Protocol error");
- }
- _opcode = (byte & 0xF);
- if (_opcode <= _WebSocketOpcode.BINARY) {
- if (_opcode == _WebSocketOpcode.CONTINUATION) {
- if (_currentMessageType == _WebSocketMessageType.NONE) {
- throw new CompatibleWebSocketException("Protocol error");
- }
- } else {
- assert(_opcode == _WebSocketOpcode.TEXT ||
- _opcode == _WebSocketOpcode.BINARY);
- if (_currentMessageType != _WebSocketMessageType.NONE) {
- throw new CompatibleWebSocketException("Protocol error");
- }
- _currentMessageType = _opcode;
- }
- } else if (_opcode >= _WebSocketOpcode.CLOSE &&
- _opcode <= _WebSocketOpcode.PONG) {
- // Control frames cannot be fragmented.
- if (!_fin) throw new CompatibleWebSocketException("Protocol error");
- } else {
- throw new CompatibleWebSocketException("Protocol error");
- }
- _state = LEN_FIRST;
- } else if (_state == LEN_FIRST) {
- _masked = (byte & 0x80) != 0;
- _len = byte & 0x7F;
- if (_isControlFrame() && _len > 125) {
- throw new CompatibleWebSocketException("Protocol error");
- }
- if (_len == 126) {
- _len = 0;
- _remainingLenBytes = 2;
- _state = LEN_REST;
- } else if (_len == 127) {
- _len = 0;
- _remainingLenBytes = 8;
- _state = LEN_REST;
- } else {
- assert(_len < 126);
- _lengthDone();
- }
- } else {
- assert(_state == LEN_REST);
- _len = _len << 8 | byte;
- _remainingLenBytes--;
- if (_remainingLenBytes == 0) {
- _lengthDone();
- }
- }
- } else {
- if (_state == MASK) {
- _maskingBytes[4 - _remainingMaskingKeyBytes--] = byte;
- if (_remainingMaskingKeyBytes == 0) {
- _maskDone();
- }
- } else {
- assert(_state == PAYLOAD);
- // The payload is not handled one byte at a time but in blocks.
- int payloadLength = min(lastIndex - index, _remainingPayloadBytes);
- _remainingPayloadBytes -= payloadLength;
- // Unmask payload if masked.
- if (_masked) {
- _unmask(index, payloadLength, buffer);
- }
- // Control frame and data frame share _payloads.
- _payload.add(
- new Uint8List.view(buffer.buffer, index, payloadLength));
- index += payloadLength;
- if (_isControlFrame()) {
- if (_remainingPayloadBytes == 0) _controlFrameEnd();
- } else {
- if (_currentMessageType != _WebSocketMessageType.TEXT &&
- _currentMessageType != _WebSocketMessageType.BINARY) {
- throw new CompatibleWebSocketException("Protocol error");
- }
- if (_remainingPayloadBytes == 0) _messageFrameEnd();
- }
-
- // Hack - as we always do index++ below.
- index--;
- }
- }
-
- // Move to the next byte.
- index++;
- }
- }
-
- void _unmask(int index, int length, Uint8List buffer) {
- const int BLOCK_SIZE = 16;
- // Skip Int32x4-version if message is small.
- if (length >= BLOCK_SIZE) {
- // Start by aligning to 16 bytes.
- final int startOffset = BLOCK_SIZE - (index & 15);
- final int end = index + startOffset;
- for (int i = index; i < end; i++) {
- buffer[i] ^= _maskingBytes[_unmaskingIndex++ & 3];
- }
- index += startOffset;
- length -= startOffset;
- final int blockCount = length ~/ BLOCK_SIZE;
- if (blockCount > 0) {
- // Create mask block.
- int mask = 0;
- for (int i = 3; i >= 0; i--) {
- mask = (mask << 8) | _maskingBytes[(_unmaskingIndex + i) & 3];
- }
- Int32x4 blockMask = new Int32x4(mask, mask, mask, mask);
- Int32x4List blockBuffer = new Int32x4List.view(
- buffer.buffer, index, blockCount);
- for (int i = 0; i < blockBuffer.length; i++) {
- blockBuffer[i] ^= blockMask;
- }
- final int bytes = blockCount * BLOCK_SIZE;
- index += bytes;
- length -= bytes;
- }
- }
- // Handle end.
- final int end = index + length;
- for (int i = index; i < end; i++) {
- buffer[i] ^= _maskingBytes[_unmaskingIndex++ & 3];
- }
- }
-
- void _lengthDone() {
- if (_masked) {
- if (!_serverSide) {
- throw new CompatibleWebSocketException(
- "Received masked frame from server");
- }
- _state = MASK;
- } else {
- if (_serverSide) {
- throw new CompatibleWebSocketException(
- "Received unmasked frame from client");
- }
- _remainingPayloadBytes = _len;
- _startPayload();
- }
- }
-
- void _maskDone() {
- _remainingPayloadBytes = _len;
- _startPayload();
- }
-
- void _startPayload() {
- // If there is no actual payload perform perform callbacks without
- // going through the PAYLOAD state.
- if (_remainingPayloadBytes == 0) {
- if (_isControlFrame()) {
- switch (_opcode) {
- case _WebSocketOpcode.CLOSE:
- _state = CLOSED;
- _eventSink.close();
- break;
- case _WebSocketOpcode.PING:
- _eventSink.add(new _WebSocketPing());
- break;
- case _WebSocketOpcode.PONG:
- _eventSink.add(new _WebSocketPong());
- break;
- }
- _prepareForNextFrame();
- } else {
- _messageFrameEnd();
- }
- } else {
- _state = PAYLOAD;
- }
- }
-
- void _messageFrameEnd() {
- if (_fin) {
- switch (_currentMessageType) {
- case _WebSocketMessageType.TEXT:
- _eventSink.add(UTF8.decode(_payload.takeBytes()));
- break;
- case _WebSocketMessageType.BINARY:
- _eventSink.add(_payload.takeBytes());
- break;
- }
- _currentMessageType = _WebSocketMessageType.NONE;
- }
- _prepareForNextFrame();
- }
-
- void _controlFrameEnd() {
- switch (_opcode) {
- case _WebSocketOpcode.CLOSE:
- closeCode = WebSocketStatus.NO_STATUS_RECEIVED;
- var payload = _payload.takeBytes();
- if (payload.length > 0) {
- if (payload.length == 1) {
- throw new CompatibleWebSocketException("Protocol error");
- }
- closeCode = payload[0] << 8 | payload[1];
- if (closeCode == WebSocketStatus.NO_STATUS_RECEIVED) {
- throw new CompatibleWebSocketException("Protocol error");
- }
- if (payload.length > 2) {
- closeReason = UTF8.decode(payload.sublist(2));
- }
- }
- _state = CLOSED;
- _eventSink.close();
- break;
-
- case _WebSocketOpcode.PING:
- _eventSink.add(new _WebSocketPing(_payload.takeBytes()));
- break;
-
- case _WebSocketOpcode.PONG:
- _eventSink.add(new _WebSocketPong(_payload.takeBytes()));
- break;
- }
- _prepareForNextFrame();
- }
-
- bool _isControlFrame() {
- return _opcode == _WebSocketOpcode.CLOSE ||
- _opcode == _WebSocketOpcode.PING ||
- _opcode == _WebSocketOpcode.PONG;
- }
-
- void _prepareForNextFrame() {
- if (_state != CLOSED && _state != FAILURE) _state = START;
- _fin = false;
- _opcode = -1;
- _len = -1;
- _remainingLenBytes = -1;
- _remainingMaskingKeyBytes = 4;
- _remainingPayloadBytes = -1;
- _unmaskingIndex = 0;
- }
-}
-
-
-class _WebSocketPing {
- final List<int> payload;
- _WebSocketPing([this.payload = null]);
-}
-
-
-class _WebSocketPong {
- final List<int> payload;
- _WebSocketPong([this.payload = null]);
-}
-
-// TODO(ajohnsen): Make this transformer reusable.
-class _WebSocketOutgoingTransformer implements StreamTransformer, EventSink {
- final WebSocketImpl webSocket;
- EventSink _eventSink;
-
- _WebSocketOutgoingTransformer(this.webSocket);
-
- Stream bind(Stream stream) {
- return new Stream.eventTransformed(
- stream,
- (EventSink eventSink) {
- if (_eventSink != null) {
- throw new StateError("WebSocket transformer already used");
- }
- _eventSink = eventSink;
- return this;
- });
- }
-
- void add(message) {
- if (message is _WebSocketPong) {
- addFrame(_WebSocketOpcode.PONG, message.payload);
- return;
- }
- if (message is _WebSocketPing) {
- addFrame(_WebSocketOpcode.PING, message.payload);
- return;
- }
- List<int> data;
- int opcode;
- if (message != null) {
- if (message is String) {
- opcode = _WebSocketOpcode.TEXT;
- data = UTF8.encode(message);
- } else {
- if (message is !List<int>) {
- throw new ArgumentError(message);
- }
- opcode = _WebSocketOpcode.BINARY;
- data = message;
- }
- } else {
- opcode = _WebSocketOpcode.TEXT;
- }
- addFrame(opcode, data);
- }
-
- void addError(Object error, [StackTrace stackTrace]) =>
- _eventSink.addError(error, stackTrace);
-
- void close() {
- int code = webSocket._outCloseCode;
- String reason = webSocket._outCloseReason;
- List<int> data;
- if (code != null) {
- data = new List<int>();
- data.add((code >> 8) & 0xFF);
- data.add(code & 0xFF);
- if (reason != null) {
- data.addAll(UTF8.encode(reason));
- }
- }
- addFrame(_WebSocketOpcode.CLOSE, data);
- _eventSink.close();
- }
-
- void addFrame(int opcode, List<int> data) =>
- createFrame(opcode, data, webSocket._serverSide).forEach(_eventSink.add);
-
- static Iterable createFrame(int opcode, List<int> data, bool serverSide) {
- bool mask = !serverSide; // Masking not implemented for server.
- int dataLength = data == null ? 0 : data.length;
- // Determine the header size.
- int headerSize = (mask) ? 6 : 2;
- if (dataLength > 65535) {
- headerSize += 8;
- } else if (dataLength > 125) {
- headerSize += 2;
- }
- Uint8List header = new Uint8List(headerSize);
- int index = 0;
- // Set FIN and opcode.
- header[index++] = 0x80 | opcode;
- // Determine size and position of length field.
- int lengthBytes = 1;
- if (dataLength > 65535) {
- header[index++] = 127;
- lengthBytes = 8;
- } else if (dataLength > 125) {
- header[index++] = 126;
- lengthBytes = 2;
- }
- // Write the length in network byte order into the header.
- for (int i = 0; i < lengthBytes; i++) {
- header[index++] = dataLength >> (((lengthBytes - 1) - i) * 8) & 0xFF;
- }
- if (mask) {
- header[1] |= 1 << 7;
- var maskBytes = [_random.nextInt(256), _random.nextInt(256),
- _random.nextInt(256), _random.nextInt(256)];
- header.setRange(index, index + 4, maskBytes);
- index += 4;
- if (data != null) {
- Uint8List list;
- // If this is a text message just do the masking inside the
- // encoded data.
- if (opcode == _WebSocketOpcode.TEXT && data is Uint8List) {
- list = data;
- } else {
- if (data is Uint8List) {
- list = new Uint8List.fromList(data);
- } else {
- list = new Uint8List(data.length);
- for (int i = 0; i < data.length; i++) {
- if (data[i] < 0 || 255 < data[i]) {
- throw new ArgumentError(
- "List element is not a byte value "
- "(value ${data[i]} at index $i)");
- }
- list[i] = data[i];
- }
- }
- }
- const int BLOCK_SIZE = 16;
- int blockCount = list.length ~/ BLOCK_SIZE;
- if (blockCount > 0) {
- // Create mask block.
- int mask = 0;
- for (int i = 3; i >= 0; i--) {
- mask = (mask << 8) | maskBytes[i];
- }
- Int32x4 blockMask = new Int32x4(mask, mask, mask, mask);
- Int32x4List blockBuffer = new Int32x4List.view(
- list.buffer, 0, blockCount);
- for (int i = 0; i < blockBuffer.length; i++) {
- blockBuffer[i] ^= blockMask;
- }
- }
- // Handle end.
- for (int i = blockCount * BLOCK_SIZE; i < list.length; i++) {
- list[i] ^= maskBytes[i & 3];
- }
- data = list;
- }
- }
- assert(index == headerSize);
- if (data == null) {
- return [header];
- } else {
- return [header, data];
- }
- }
-}
-
-
-class _WebSocketConsumer implements StreamConsumer {
- final WebSocketImpl webSocket;
- final StreamSink<List<int>> sink;
- StreamController _controller;
- StreamSubscription _subscription;
- bool _issuedPause = false;
- bool _closed = false;
- Completer _closeCompleter = new Completer();
- Completer _completer;
-
- _WebSocketConsumer(this.webSocket, this.sink);
-
- void _onListen() {
- if (_subscription != null) {
- _subscription.cancel();
- }
- }
-
- void _onPause() {
- if (_subscription != null) {
- _subscription.pause();
- } else {
- _issuedPause = true;
- }
- }
-
- void _onResume() {
- if (_subscription != null) {
- _subscription.resume();
- } else {
- _issuedPause = false;
- }
- }
-
- void _cancel() {
- if (_subscription != null) {
- var subscription = _subscription;
- _subscription = null;
- subscription.cancel();
- }
- }
-
- _ensureController() {
- if (_controller != null) return;
- _controller = new StreamController(sync: true,
- onPause: _onPause,
- onResume: _onResume,
- onCancel: _onListen);
- var stream = _controller.stream.transform(
- new _WebSocketOutgoingTransformer(webSocket));
- sink.addStream(stream)
- .then((_) {
- _done();
- _closeCompleter.complete(webSocket);
- }, onError: (error, StackTrace stackTrace) {
- _closed = true;
- _cancel();
- if (error is ArgumentError) {
- if (!_done(error, stackTrace)) {
- _closeCompleter.completeError(error, stackTrace);
- }
- } else {
- _done();
- _closeCompleter.complete(webSocket);
- }
- });
- }
-
- bool _done([error, StackTrace stackTrace]) {
- if (_completer == null) return false;
- if (error != null) {
- _completer.completeError(error, stackTrace);
- } else {
- _completer.complete(webSocket);
- }
- _completer = null;
- return true;
- }
-
- Future addStream(var stream) {
- if (_closed) {
- stream.listen(null).cancel();
- return new Future.value(webSocket);
- }
- _ensureController();
- _completer = new Completer();
- _subscription = stream.listen(
- (data) {
- _controller.add(data);
- },
- onDone: _done,
- onError: _done,
- cancelOnError: true);
- if (_issuedPause) {
- _subscription.pause();
- _issuedPause = false;
- }
- return _completer.future;
- }
-
- Future close() {
- _ensureController();
- Future closeSocket() {
- return sink.close().catchError((_) {}).then((_) => webSocket);
- }
- _controller.close();
- return _closeCompleter.future.then((_) => closeSocket());
- }
-
- void add(data) {
- if (_closed) return;
- _ensureController();
- _controller.add(data);
- }
-
- void closeSocket() {
- _closed = true;
- _cancel();
- close();
- }
-}
-
-
-class WebSocketImpl extends Stream with _ServiceObject
- implements CompatibleWebSocket {
- // Use default Map so we keep order.
- static Map<int, WebSocketImpl> _webSockets = new Map<int, WebSocketImpl>();
-
- final String protocol;
-
- StreamController _controller;
- StreamSubscription _subscription;
- StreamSink _sink;
-
- final bool _serverSide;
- int _readyState = WebSocket.CONNECTING;
- bool _writeClosed = false;
- int _closeCode;
- String _closeReason;
- Duration _pingInterval;
- Timer _pingTimer;
- _WebSocketConsumer _consumer;
-
- int _outCloseCode;
- String _outCloseReason;
- Timer _closeTimer;
-
- WebSocketImpl.fromSocket(Stream<List<int>> stream,
- StreamSink<List<int>> sink, this.protocol, [this._serverSide = false]) {
- _consumer = new _WebSocketConsumer(this, sink);
- _sink = new StreamSinkImpl(_consumer);
- _readyState = WebSocket.OPEN;
-
- var transformer = new _WebSocketProtocolTransformer(_serverSide);
- _subscription = stream.transform(transformer).listen(
- (data) {
- if (data is _WebSocketPing) {
- if (!_writeClosed) _consumer.add(new _WebSocketPong(data.payload));
- } else if (data is _WebSocketPong) {
- // Simply set pingInterval, as it'll cancel any timers.
- pingInterval = _pingInterval;
- } else {
- _controller.add(data);
- }
- },
- onError: (error) {
- if (_closeTimer != null) _closeTimer.cancel();
- if (error is FormatException) {
- _close(WebSocketStatus.INVALID_FRAME_PAYLOAD_DATA);
- } else {
- _close(WebSocketStatus.PROTOCOL_ERROR);
- }
- // An error happened, set the close code set above.
- _closeCode = _outCloseCode;
- _closeReason = _outCloseReason;
- _controller.close();
- },
- onDone: () {
- if (_closeTimer != null) _closeTimer.cancel();
- if (_readyState == WebSocket.OPEN) {
- _readyState = WebSocket.CLOSING;
- if (!_isReservedStatusCode(transformer.closeCode)) {
- _close(transformer.closeCode);
- } else {
- _close();
- }
- _readyState = WebSocket.CLOSED;
- }
- // Protocol close, use close code from transformer.
- _closeCode = transformer.closeCode;
- _closeReason = transformer.closeReason;
- _controller.close();
- },
- cancelOnError: true);
- _subscription.pause();
- _controller = new StreamController(sync: true,
- onListen: () => _subscription.resume(),
- onCancel: () {
- _subscription.cancel();
- _subscription = null;
- },
- onPause: _subscription.pause,
- onResume: _subscription.resume);
-
- _webSockets[_serviceId] = this;
- }
-
- StreamSubscription listen(void onData(message),
- {Function onError,
- void onDone(),
- bool cancelOnError}) {
- return _controller.stream.listen(onData,
- onError: onError,
- onDone: onDone,
- cancelOnError: cancelOnError);
- }
-
- Duration get pingInterval => _pingInterval;
-
- void set pingInterval(Duration interval) {
- if (_writeClosed) return;
- if (_pingTimer != null) _pingTimer.cancel();
- _pingInterval = interval;
-
- if (_pingInterval == null) return;
-
- _pingTimer = new Timer(_pingInterval, () {
- if (_writeClosed) return;
- _consumer.add(new _WebSocketPing());
- _pingTimer = new Timer(_pingInterval, () {
- // No pong received.
- _close(WebSocketStatus.GOING_AWAY);
- });
- });
- }
-
- int get readyState => _readyState;
-
- String get extensions => null;
- int get closeCode => _closeCode;
- String get closeReason => _closeReason;
-
- void add(data) => _sink.add(data);
- void addError(error, [StackTrace stackTrace]) =>
- _sink.addError(error, stackTrace);
- Future addStream(Stream stream) => _sink.addStream(stream);
- Future get done => _sink.done;
-
- Future close([int code, String reason]) {
- if (_isReservedStatusCode(code)) {
- throw new CompatibleWebSocketException("Reserved status code $code");
- }
- if (_outCloseCode == null) {
- _outCloseCode = code;
- _outCloseReason = reason;
- }
- if (!_controller.isClosed) {
- // If a close has not yet been received from the other end then
- // 1) make sure to listen on the stream so the close frame will be
- // processed if received.
- // 2) set a timer terminate the connection if a close frame is
- // not received.
- if (!_controller.hasListener && _subscription != null) {
- _controller.stream.drain().catchError((_) => {});
- }
- if (_closeTimer == null) {
- // When closing the web-socket, we no longer accept data.
- _closeTimer = new Timer(const Duration(seconds: 5), () {
- // Reuse code and reason from the local close.
- _closeCode = _outCloseCode;
- _closeReason = _outCloseReason;
- if (_subscription != null) _subscription.cancel();
- _controller.close();
- _webSockets.remove(_serviceId);
- });
- }
- }
- return _sink.close();
- }
-
- void _close([int code, String reason]) {
- if (_writeClosed) return;
- if (_outCloseCode == null) {
- _outCloseCode = code;
- _outCloseReason = reason;
- }
- _writeClosed = true;
- _consumer.closeSocket();
- _webSockets.remove(_serviceId);
- }
-
- // The _toJSON, _serviceTypePath, and _serviceTypeName methods
- // have been deleted for http_parser. The methods were unused in WebSocket
- // code and produced warnings.
-
- static bool _isReservedStatusCode(int code) {
- return code != null &&
- (code < WebSocketStatus.NORMAL_CLOSURE ||
- code == WebSocketStatus.RESERVED_1004 ||
- code == WebSocketStatus.NO_STATUS_RECEIVED ||
- code == WebSocketStatus.ABNORMAL_CLOSURE ||
- (code > WebSocketStatus.INTERNAL_SERVER_ERROR &&
- code < WebSocketStatus.RESERVED_1015) ||
- (code >= WebSocketStatus.RESERVED_1015 &&
- code < 3000));
- }
-}
-
-// The following code is from sdk/lib/io/service_object.dart.
-
-int _nextServiceId = 1;
-
-// TODO(ajohnsen): Use other way of getting a uniq id.
-abstract class _ServiceObject {
- int __serviceId = 0;
- int get _serviceId {
- if (__serviceId == 0) __serviceId = _nextServiceId++;
- return __serviceId;
- }
-
- // The _toJSON, _servicePath, _serviceTypePath, _serviceTypeName, and
- // _serviceType methods have been deleted for http_parser. The methods were
- // unused in WebSocket code and produced warnings.
-}
diff --git a/pubspec.yaml b/pubspec.yaml
index 21a3977..c03e59d 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
name: http_parser
-version: 3.0.0
+version: 3.0.1-dev
author: "Dart Team <misc@dartlang.org>"
homepage: https://github.com/dart-lang/http_parser
description: >
