1/*
2 * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
3 * Copyright (C) 2008 Matt Lilek <webkit@mattlilek.com>
4 * Copyright (C) 2012 Google Inc. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1.  Redistributions of source code must retain the above copyright
11 *     notice, this list of conditions and the following disclaimer.
12 * 2.  Redistributions in binary form must reproduce the above copyright
13 *     notice, this list of conditions and the following disclaimer in the
14 *     documentation and/or other materials provided with the distribution.
15 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
16 *     its contributors may be used to endorse or promote products derived
17 *     from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "core/inspector/InjectedScriptManager.h"
33
34#include "bindings/core/v8/ScriptValue.h"
35#include "core/inspector/InjectedScript.h"
36#include "core/inspector/InjectedScriptHost.h"
37#include "core/inspector/JSONParser.h"
38#include "platform/JSONValues.h"
39#include "public/platform/Platform.h"
40#include "public/platform/WebData.h"
41#include "wtf/PassOwnPtr.h"
42
43namespace blink {
44
45#if ENABLE(OILPAN)
46InjectedScriptManager::CallbackData::~CallbackData()
47{
48    WrapperPersistent<InjectedScriptHost>::destroy(hostPtr);
49}
50#endif
51
52PassOwnPtrWillBeRawPtr<InjectedScriptManager> InjectedScriptManager::createForPage()
53{
54    return adoptPtrWillBeNoop(new InjectedScriptManager(&InjectedScriptManager::canAccessInspectedWindow));
55}
56
57PassOwnPtrWillBeRawPtr<InjectedScriptManager> InjectedScriptManager::createForWorker()
58{
59    return adoptPtrWillBeNoop(new InjectedScriptManager(&InjectedScriptManager::canAccessInspectedWorkerGlobalScope));
60}
61
62InjectedScriptManager::InjectedScriptManager(InspectedStateAccessCheck accessCheck)
63    : m_nextInjectedScriptId(1)
64    , m_injectedScriptHost(InjectedScriptHost::create())
65    , m_inspectedStateAccessCheck(accessCheck)
66{
67}
68
69InjectedScriptManager::~InjectedScriptManager()
70{
71}
72
73void InjectedScriptManager::trace(Visitor* visitor)
74{
75    visitor->trace(m_injectedScriptHost);
76}
77
78void InjectedScriptManager::disconnect()
79{
80    m_injectedScriptHost->disconnect();
81    m_injectedScriptHost.clear();
82}
83
84InjectedScriptHost* InjectedScriptManager::injectedScriptHost()
85{
86    return m_injectedScriptHost.get();
87}
88
89InjectedScript InjectedScriptManager::injectedScriptForId(int id)
90{
91    IdToInjectedScriptMap::iterator it = m_idToInjectedScript.find(id);
92    if (it != m_idToInjectedScript.end())
93        return it->value;
94    for (ScriptStateToId::iterator it = m_scriptStateToId.begin(); it != m_scriptStateToId.end(); ++it) {
95        if (it->value == id)
96            return injectedScriptFor(it->key.get());
97    }
98    return InjectedScript();
99}
100
101int InjectedScriptManager::injectedScriptIdFor(ScriptState* scriptState)
102{
103    ScriptStateToId::iterator it = m_scriptStateToId.find(scriptState);
104    if (it != m_scriptStateToId.end())
105        return it->value;
106    int id = m_nextInjectedScriptId++;
107    m_scriptStateToId.set(scriptState, id);
108    return id;
109}
110
111InjectedScript InjectedScriptManager::injectedScriptForObjectId(const String& objectId)
112{
113    RefPtr<JSONValue> parsedObjectId = parseJSON(objectId);
114    if (parsedObjectId && parsedObjectId->type() == JSONValue::TypeObject) {
115        long injectedScriptId = 0;
116        bool success = parsedObjectId->asObject()->getNumber("injectedScriptId", &injectedScriptId);
117        if (success)
118            return m_idToInjectedScript.get(injectedScriptId);
119    }
120    return InjectedScript();
121}
122
123void InjectedScriptManager::discardInjectedScripts()
124{
125    m_idToInjectedScript.clear();
126    m_scriptStateToId.clear();
127}
128
129void InjectedScriptManager::discardInjectedScriptsFor(LocalDOMWindow* window)
130{
131    if (m_scriptStateToId.isEmpty())
132        return;
133
134    Vector<long> idsToRemove;
135    IdToInjectedScriptMap::iterator end = m_idToInjectedScript.end();
136    for (IdToInjectedScriptMap::iterator it = m_idToInjectedScript.begin(); it != end; ++it) {
137        ScriptState* scriptState = it->value.scriptState();
138        if (window != scriptState->domWindow())
139            continue;
140        m_scriptStateToId.remove(scriptState);
141        idsToRemove.append(it->key);
142    }
143    m_idToInjectedScript.removeAll(idsToRemove);
144
145    // Now remove script states that have id but no injected script.
146    Vector<ScriptState*> scriptStatesToRemove;
147    for (ScriptStateToId::iterator it = m_scriptStateToId.begin(); it != m_scriptStateToId.end(); ++it) {
148        ScriptState* scriptState = it->key.get();
149        if (window == scriptState->domWindow())
150            scriptStatesToRemove.append(scriptState);
151    }
152    m_scriptStateToId.removeAll(scriptStatesToRemove);
153}
154
155bool InjectedScriptManager::canAccessInspectedWorkerGlobalScope(ScriptState*)
156{
157    return true;
158}
159
160void InjectedScriptManager::releaseObjectGroup(const String& objectGroup)
161{
162    Vector<int> keys;
163    keys.appendRange(m_idToInjectedScript.keys().begin(), m_idToInjectedScript.keys().end());
164    for (Vector<int>::iterator k = keys.begin(); k != keys.end(); ++k) {
165        IdToInjectedScriptMap::iterator s = m_idToInjectedScript.find(*k);
166        if (s != m_idToInjectedScript.end())
167            s->value.releaseObjectGroup(objectGroup); // m_idToInjectedScript may change here.
168    }
169}
170
171String InjectedScriptManager::injectedScriptSource()
172{
173    const blink::WebData& injectedScriptSourceResource = blink::Platform::current()->loadResource("InjectedScriptSource.js");
174    return String(injectedScriptSourceResource.data(), injectedScriptSourceResource.size());
175}
176
177InjectedScript InjectedScriptManager::injectedScriptFor(ScriptState* inspectedScriptState)
178{
179    ScriptStateToId::iterator it = m_scriptStateToId.find(inspectedScriptState);
180    if (it != m_scriptStateToId.end()) {
181        IdToInjectedScriptMap::iterator it1 = m_idToInjectedScript.find(it->value);
182        if (it1 != m_idToInjectedScript.end())
183            return it1->value;
184    }
185
186    if (!m_inspectedStateAccessCheck(inspectedScriptState))
187        return InjectedScript();
188
189    int id = injectedScriptIdFor(inspectedScriptState);
190    ScriptValue injectedScriptValue = createInjectedScript(injectedScriptSource(), inspectedScriptState, id);
191    InjectedScript result(injectedScriptValue, m_inspectedStateAccessCheck);
192    m_idToInjectedScript.set(id, result);
193    return result;
194}
195
196} // namespace blink
197
198