1 /*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25 #include "config.h"
26 #include "bindings/v8/V8ThrowException.h"
27
28 #include "V8DOMException.h"
29 #include "bindings/v8/V8Binding.h"
30 #include "core/dom/DOMException.h"
31 #include "core/dom/ExceptionCode.h"
32
33 namespace WebCore {
34
domExceptionStackGetter(v8::Local<v8::String> name,const v8::PropertyCallbackInfo<v8::Value> & info)35 static void domExceptionStackGetter(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info)
36 {
37 ASSERT(info.Data()->IsObject());
38 v8SetReturnValue(info, info.Data()->ToObject()->Get(v8AtomicString(info.GetIsolate(), "stack")));
39 }
40
domExceptionStackSetter(v8::Local<v8::String> name,v8::Local<v8::Value> value,const v8::PropertyCallbackInfo<void> & info)41 static void domExceptionStackSetter(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info)
42 {
43 ASSERT(info.Data()->IsObject());
44 info.Data()->ToObject()->Set(v8AtomicString(info.GetIsolate(), "stack"), value);
45 }
46
createDOMException(int ec,const String & sanitizedMessage,const String & unsanitizedMessage,const v8::Handle<v8::Object> & creationContext,v8::Isolate * isolate)47 v8::Handle<v8::Value> V8ThrowException::createDOMException(int ec, const String& sanitizedMessage, const String& unsanitizedMessage, const v8::Handle<v8::Object>& creationContext, v8::Isolate* isolate)
48 {
49 if (ec <= 0 || v8::V8::IsExecutionTerminating())
50 return v8Undefined();
51
52 ASSERT(ec == SecurityError || unsanitizedMessage.isEmpty());
53
54 // FIXME: Handle other WebIDL exception types.
55 if (ec == TypeError)
56 return V8ThrowException::createTypeError(sanitizedMessage, isolate);
57
58 RefPtr<DOMException> domException = DOMException::create(ec, sanitizedMessage, unsanitizedMessage);
59 v8::Handle<v8::Value> exception = toV8(domException, creationContext, isolate);
60
61 if (exception.IsEmpty())
62 return v8Undefined();
63
64 // Attach an Error object to the DOMException. This is then lazily used to get the stack value.
65 v8::Handle<v8::Value> error = v8::Exception::Error(v8String(isolate, domException->message()));
66 ASSERT(!error.IsEmpty());
67 ASSERT(exception->IsObject());
68 exception->ToObject()->SetAccessor(v8AtomicString(isolate, "stack"), domExceptionStackGetter, domExceptionStackSetter, error);
69
70 return exception;
71 }
72
throwDOMException(int ec,const String & sanitizedMessage,const String & unsanitizedMessage,const v8::Handle<v8::Object> & creationContext,v8::Isolate * isolate)73 v8::Handle<v8::Value> V8ThrowException::throwDOMException(int ec, const String& sanitizedMessage, const String& unsanitizedMessage, const v8::Handle<v8::Object>& creationContext, v8::Isolate* isolate)
74 {
75 ASSERT(ec == SecurityError || unsanitizedMessage.isEmpty());
76 v8::Handle<v8::Value> exception = createDOMException(ec, sanitizedMessage, unsanitizedMessage, creationContext, isolate);
77 if (exception.IsEmpty())
78 return v8Undefined();
79
80 return V8ThrowException::throwError(exception, isolate);
81 }
82
createError(V8ErrorType type,const String & message,v8::Isolate * isolate)83 v8::Handle<v8::Value> V8ThrowException::createError(V8ErrorType type, const String& message, v8::Isolate* isolate)
84 {
85 switch (type) {
86 case v8RangeError:
87 return v8::Exception::RangeError(v8String(isolate, message));
88 case v8ReferenceError:
89 return v8::Exception::ReferenceError(v8String(isolate, message));
90 case v8SyntaxError:
91 return v8::Exception::SyntaxError(v8String(isolate, message));
92 case v8TypeError:
93 return v8::Exception::TypeError(v8String(isolate, message));
94 case v8GeneralError:
95 return v8::Exception::Error(v8String(isolate, message));
96 default:
97 ASSERT_NOT_REACHED();
98 return v8Undefined();
99 }
100 }
101
throwError(V8ErrorType type,const String & message,v8::Isolate * isolate)102 v8::Handle<v8::Value> V8ThrowException::throwError(V8ErrorType type, const String& message, v8::Isolate* isolate)
103 {
104 v8::Handle<v8::Value> exception = V8ThrowException::createError(type, message, isolate);
105 if (exception.IsEmpty())
106 return v8Undefined();
107 return V8ThrowException::throwError(exception, isolate);
108 }
109
createTypeError(const String & message,v8::Isolate * isolate)110 v8::Handle<v8::Value> V8ThrowException::createTypeError(const String& message, v8::Isolate* isolate)
111 {
112 return v8::Exception::TypeError(v8String(isolate, message.isNull() ? "Type error" : message));
113 }
114
throwTypeError(const String & message,v8::Isolate * isolate)115 v8::Handle<v8::Value> V8ThrowException::throwTypeError(const String& message, v8::Isolate* isolate)
116 {
117 v8::Handle<v8::Value> exception = V8ThrowException::createTypeError(message, isolate);
118 return V8ThrowException::throwError(exception, isolate);
119 }
120
throwError(v8::Handle<v8::Value> exception,v8::Isolate * isolate)121 v8::Handle<v8::Value> V8ThrowException::throwError(v8::Handle<v8::Value> exception, v8::Isolate* isolate)
122 {
123 if (!v8::V8::IsExecutionTerminating())
124 isolate->ThrowException(exception);
125 return v8::Undefined(isolate);
126 }
127
128 } // namespace WebCore
129