1/*
2 * Copyright (C) 2004, 2006, 2013 Apple Inc. All rights reserved.
3 * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "config.h"
28
29#if ENABLE(NETSCAPE_PLUGIN_API)
30
31#include "c_utility.h"
32
33#include "CRuntimeObject.h"
34#include "DOMWindow.h"
35#include "JSDOMBinding.h"
36#include "JSDOMWindow.h"
37#include "NP_jsobject.h"
38#include "c_instance.h"
39#include "npruntime_impl.h"
40#include "npruntime_priv.h"
41#include "runtime_object.h"
42#include "runtime_root.h"
43#include <JavaScriptCore/JSGlobalObject.h>
44#include <JavaScriptCore/JSLock.h>
45#include <wtf/Assertions.h>
46#include <wtf/text/WTFString.h>
47
48namespace JSC { namespace Bindings {
49
50static String convertUTF8ToUTF16WithLatin1Fallback(const NPUTF8* UTF8Chars, int UTF8Length)
51{
52 ASSERT(UTF8Chars || UTF8Length == 0);
53
54 if (UTF8Length == -1)
55 UTF8Length = static_cast<int>(strlen(UTF8Chars));
56
57 String result = String::fromUTF8(UTF8Chars, UTF8Length);
58
59 // If we got back a null string indicating an unsuccessful conversion, fall back to latin 1.
60 // Some plugins return invalid UTF-8 in NPVariantType_String, see <http://bugs.webkit.org/show_bug.cgi?id=5163>
61 // There is no "bad data" for latin1. It is unlikely that the plugin was really sending text in this encoding,
62 // but it should have used UTF-8, and now we are simply avoiding a crash.
63 if (result.isNull())
64 result = String(UTF8Chars, UTF8Length);
65
66 return result;
67}
68
69// Variant value must be released with NPReleaseVariantValue()
70void convertValueToNPVariant(ExecState* exec, JSValue value, NPVariant* result)
71{
72 JSLockHolder lock(exec);
73 VM& vm = exec->vm();
74
75 VOID_TO_NPVARIANT(*result);
76
77 if (value.isString()) {
78 String ustring = value.toWTFString(exec);
79 CString cstring = ustring.utf8();
80 NPString string = { (const NPUTF8*)cstring.data(), static_cast<uint32_t>(cstring.length()) };
81 NPN_InitializeVariantWithStringCopy(result, &string);
82 } else if (value.isNumber()) {
83 DOUBLE_TO_NPVARIANT(value.toNumber(exec), *result);
84 } else if (value.isBoolean()) {
85 BOOLEAN_TO_NPVARIANT(value.toBoolean(exec), *result);
86 } else if (value.isNull()) {
87 NULL_TO_NPVARIANT(*result);
88 } else if (value.isObject()) {
89 JSObject* object = asObject(value);
90 if (object->classInfo(vm) == CRuntimeObject::info()) {
91 CRuntimeObject* runtimeObject = static_cast<CRuntimeObject*>(object);
92 CInstance* instance = runtimeObject->getInternalCInstance();
93 if (instance) {
94 NPObject* obj = instance->getObject();
95 _NPN_RetainObject(obj);
96 OBJECT_TO_NPVARIANT(obj, *result);
97 }
98 } else {
99 JSGlobalObject* globalObject = vm.vmEntryGlobalObject(exec);
100
101 RootObject* rootObject = findRootObject(globalObject);
102 if (rootObject) {
103 NPObject* npObject = _NPN_CreateScriptObject(0, object, rootObject);
104 OBJECT_TO_NPVARIANT(npObject, *result);
105 }
106 }
107 }
108}
109
110JSValue convertNPVariantToValue(ExecState* exec, const NPVariant* variant, RootObject* rootObject)
111{
112 JSLockHolder lock(exec);
113
114 NPVariantType type = variant->type;
115
116 if (type == NPVariantType_Bool)
117 return jsBoolean(NPVARIANT_TO_BOOLEAN(*variant));
118 if (type == NPVariantType_Null)
119 return jsNull();
120 if (type == NPVariantType_Void)
121 return jsUndefined();
122 if (type == NPVariantType_Int32)
123 return jsNumber(NPVARIANT_TO_INT32(*variant));
124 if (type == NPVariantType_Double)
125 return jsNumber(NPVARIANT_TO_DOUBLE(*variant));
126 if (type == NPVariantType_String)
127 return jsStringWithCache(exec, convertNPStringToUTF16(&variant->value.stringValue));
128 if (type == NPVariantType_Object) {
129 NPObject* obj = variant->value.objectValue;
130
131 if (obj->_class == NPScriptObjectClass)
132 // Get JSObject from NP_JavaScriptObject.
133 return ((JavaScriptObject*)obj)->imp;
134
135 // Wrap NPObject in a CInstance.
136 return CInstance::create(obj, rootObject)->createRuntimeObject(exec);
137 }
138
139 return jsUndefined();
140}
141
142String convertNPStringToUTF16(const NPString* string)
143{
144 return String::fromUTF8WithLatin1Fallback(string->UTF8Characters, string->UTF8Length);
145}
146
147Identifier identifierFromNPIdentifier(ExecState* exec, const NPUTF8* name)
148{
149 return Identifier::fromString(exec, convertUTF8ToUTF16WithLatin1Fallback(name, -1));
150}
151
152} }
153
154#endif // ENABLE(NETSCAPE_PLUGIN_API)
155