1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_WEBSOCKETS_WEBSOCKET_STREAM_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBSOCKETS_WEBSOCKET_STREAM_H_
#include "third_party/blink/renderer/bindings/core/v8/active_script_wrappable.h"
#include "third_party/blink/renderer/core/execution_context/execution_context_lifecycle_observer.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/modules/websockets/websocket_channel_client.h"
#include "third_party/blink/renderer/modules/websockets/websocket_common.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/bindings/trace_wrapper_v8_reference.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
#include "v8/include/v8.h"
namespace blink {
class ExceptionState;
class ExecutionContext;
class ScriptPromise;
class ScriptPromiseResolver;
class ScriptState;
class ScriptValue;
class Visitor;
class WebSocketChannel;
class WebSocketCloseInfo;
class WebSocketStreamOptions;
// Implements of JavaScript-exposed WebSocketStream API. See design doc at
// https://docs.google.com/document/d/1XuxEshh5VYBYm1qRVKordTamCOsR-uGQBCYFcHXP4L0/edit
class MODULES_EXPORT WebSocketStream final
: public ScriptWrappable,
public ActiveScriptWrappable<WebSocketStream>,
public ExecutionContextLifecycleObserver,
public WebSocketChannelClient {
DEFINE_WRAPPERTYPEINFO();
public:
// IDL constructors
static WebSocketStream* Create(ScriptState*,
const String& url,
WebSocketStreamOptions*,
ExceptionState&);
static WebSocketStream* CreateForTesting(ScriptState*,
const String& url,
WebSocketStreamOptions*,
WebSocketChannel*,
ExceptionState&);
// The constructor only creates the object. It cannot fail. The private
// Connect() method is used by Create() to start connecting.
WebSocketStream(ExecutionContext*, ScriptState*);
~WebSocketStream() override;
// IDL properties
const KURL& url() const { return common_.Url(); }
ScriptPromise connection(ScriptState*) const;
ScriptPromise closed(ScriptState*) const;
// IDL functions
void close(WebSocketCloseInfo*, ExceptionState&);
// Implementation of WebSocketChannelClient
void DidConnect(const String& subprotocol, const String& extensions) override;
void DidReceiveTextMessage(const String&) override;
void DidReceiveBinaryMessage(
const Vector<base::span<const char>>& data) override;
void DidError() override;
void DidConsumeBufferedAmount(uint64_t consumed) override;
void DidStartClosingHandshake() override;
void DidClose(ClosingHandshakeCompletionStatus,
uint16_t /* code */,
const String& /* reason */) override;
// Implementation of ExecutionContextLifecycleObserver.
void ContextDestroyed() override;
// Implementation of ActiveScriptWrappable.
bool HasPendingActivity() const override;
void Trace(Visitor*) const override;
private:
class UnderlyingSource;
class UnderlyingSink;
static WebSocketStream* CreateInternal(ScriptState*,
const String& url,
WebSocketStreamOptions*,
WebSocketChannel*,
ExceptionState&);
void Connect(ScriptState*,
const String& url,
WebSocketStreamOptions*,
ExceptionState&);
// Closes the connection. If |maybe_reason| is an object with a valid "code"
// property and optionally a valid "reason" property, will use them as the
// code and reason, otherwise will close with unspecified close.
void CloseMaybeWithReason(ScriptValue maybe_reason);
void CloseWithUnspecifiedCode();
void CloseInternal(int code,
const String& reason,
ExceptionState& exception_state);
void OnAbort();
v8::Local<v8::Value> CreateNetworkErrorDOMException();
static WebSocketCloseInfo* MakeCloseInfo(uint16_t code, const String& reason);
const Member<ScriptState> script_state_;
const Member<ScriptPromiseResolver> connection_resolver_;
const Member<ScriptPromiseResolver> closed_resolver_;
// These need to be cached because the Promise() method on
// ScriptPromiseResolver doesn't work any more once the promise is resolved or
// rejected.
const TraceWrapperV8Reference<v8::Promise> connection_;
const TraceWrapperV8Reference<v8::Promise> closed_;
Member<WebSocketChannel> channel_;
Member<UnderlyingSource> source_;
Member<UnderlyingSink> sink_;
WebSocketCommon common_;
// We need to distinguish between "closing during handshake" and "closing
// after handshake" in order to reject the |connection_resolver_| correctly.
bool was_ever_connected_ = false;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBSOCKETS_WEBSOCKET_STREAM_H_
|
