1/*
2 * Copyright (C) 2013 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "bindings/v8/ExceptionState.h"
33
34#include "bindings/v8/ExceptionMessages.h"
35#include "bindings/v8/V8ThrowException.h"
36#include "core/dom/ExceptionCode.h"
37
38namespace WebCore {
39
40void ExceptionState::clearException()
41{
42    m_code = 0;
43    m_exception.clear();
44}
45
46void ExceptionState::throwDOMException(const ExceptionCode& ec, const String& message)
47{
48    ASSERT(ec);
49    ASSERT(m_isolate);
50
51    // SecurityError is thrown via ::throwSecurityError, and _careful_ consideration must be given to the data exposed to JavaScript via the 'sanitizedMessage'.
52    ASSERT(ec != SecurityError);
53
54    m_code = ec;
55    String processedMessage = addExceptionContext(message);
56    setException(V8ThrowException::createDOMException(ec, processedMessage, m_creationContext, m_isolate));
57}
58
59void ExceptionState::throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage)
60{
61    ASSERT(m_isolate);
62    m_code = SecurityError;
63    String finalSanitized = addExceptionContext(sanitizedMessage);
64    String finalUnsanitized = addExceptionContext(unsanitizedMessage);
65    setException(V8ThrowException::createDOMException(SecurityError, finalSanitized, finalUnsanitized, m_creationContext, m_isolate));
66}
67
68void ExceptionState::setException(v8::Handle<v8::Value> exception)
69{
70    // FIXME: Assert that exception is not empty?
71    if (exception.IsEmpty()) {
72        clearException();
73        return;
74    }
75
76    m_exception.set(m_isolate, exception);
77}
78
79void ExceptionState::throwTypeError(const String& message)
80{
81    ASSERT(m_isolate);
82    m_code = TypeError;
83    setException(V8ThrowException::createTypeError(addExceptionContext(message), m_isolate));
84}
85
86void TrackExceptionState::throwDOMException(const ExceptionCode& ec, const String& message)
87{
88    m_code = ec;
89}
90
91void TrackExceptionState::throwTypeError(const String&)
92{
93    m_code = TypeError;
94}
95
96void TrackExceptionState::throwSecurityError(const String&, const String&)
97{
98    m_code = SecurityError;
99}
100
101String ExceptionState::addExceptionContext(const String& message) const
102{
103    if (message.isEmpty())
104        return message;
105
106    String processedMessage = message;
107    if (propertyName() && interfaceName() && m_context != UnknownContext) {
108        if (m_context == DeletionContext)
109            processedMessage = ExceptionMessages::failedToDelete(propertyName(), interfaceName(), message);
110        else if (m_context == ExecutionContext)
111            processedMessage = ExceptionMessages::failedToExecute(propertyName(), interfaceName(), message);
112        else if (m_context == GetterContext)
113            processedMessage = ExceptionMessages::failedToGet(propertyName(), interfaceName(), message);
114        else if (m_context == SetterContext)
115            processedMessage = ExceptionMessages::failedToSet(propertyName(), interfaceName(), message);
116    } else if (!propertyName() && interfaceName() && m_context == ConstructionContext) {
117        processedMessage = ExceptionMessages::failedToConstruct(interfaceName(), message);
118    }
119    return processedMessage;
120}
121
122} // namespace WebCore
123