156 lines
5.7 KiB
C++
156 lines
5.7 KiB
C++
/*
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* Copyright (C) 2004-2019 Apple Inc. All rights reserved.
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* Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#if ENABLE(NETSCAPE_PLUGIN_API)
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#include "c_utility.h"
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#include "CRuntimeObject.h"
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#include "DOMWindow.h"
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#include "JSDOMBinding.h"
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#include "JSDOMWindow.h"
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#include "NP_jsobject.h"
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#include "c_instance.h"
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#include "npruntime_impl.h"
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#include "npruntime_priv.h"
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#include "runtime_object.h"
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#include "runtime_root.h"
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#include <JavaScriptCore/JSGlobalObject.h>
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#include <JavaScriptCore/JSLock.h>
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#include <wtf/Assertions.h>
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#include <wtf/text/WTFString.h>
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namespace JSC { namespace Bindings {
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static String convertUTF8ToUTF16WithLatin1Fallback(const NPUTF8* UTF8Chars, int UTF8Length)
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{
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ASSERT(UTF8Chars || UTF8Length == 0);
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if (UTF8Length == -1)
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UTF8Length = static_cast<int>(strlen(UTF8Chars));
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String result = String::fromUTF8(UTF8Chars, UTF8Length);
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// If we got back a null string indicating an unsuccessful conversion, fall back to latin 1.
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// Some plugins return invalid UTF-8 in NPVariantType_String, see <http://bugs.webkit.org/show_bug.cgi?id=5163>
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// There is no "bad data" for latin1. It is unlikely that the plugin was really sending text in this encoding,
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// but it should have used UTF-8, and now we are simply avoiding a crash.
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if (result.isNull())
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result = String(UTF8Chars, UTF8Length);
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return result;
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}
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// Variant value must be released with NPReleaseVariantValue()
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void convertValueToNPVariant(JSGlobalObject* exec, JSValue value, NPVariant* result)
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{
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JSLockHolder lock(exec);
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VM& vm = exec->vm();
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VOID_TO_NPVARIANT(*result);
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if (value.isString()) {
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String ustring = value.toWTFString(exec);
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CString cstring = ustring.utf8();
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NPString string = { (const NPUTF8*)cstring.data(), static_cast<uint32_t>(cstring.length()) };
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NPN_InitializeVariantWithStringCopy(result, &string);
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} else if (value.isNumber()) {
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DOUBLE_TO_NPVARIANT(value.toNumber(exec), *result);
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} else if (value.isBoolean()) {
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BOOLEAN_TO_NPVARIANT(value.toBoolean(exec), *result);
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} else if (value.isNull()) {
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NULL_TO_NPVARIANT(*result);
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} else if (value.isObject()) {
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JSObject* object = asObject(value);
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if (object->classInfo(vm) == CRuntimeObject::info()) {
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CRuntimeObject* runtimeObject = static_cast<CRuntimeObject*>(object);
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CInstance* instance = runtimeObject->getInternalCInstance();
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if (instance) {
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NPObject* obj = instance->getObject();
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_NPN_RetainObject(obj);
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OBJECT_TO_NPVARIANT(obj, *result);
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}
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} else {
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JSGlobalObject* globalObject = vm.deprecatedVMEntryGlobalObject(exec);
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RootObject* rootObject = findRootObject(globalObject);
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if (rootObject) {
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NPObject* npObject = _NPN_CreateScriptObject(0, object, rootObject);
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OBJECT_TO_NPVARIANT(npObject, *result);
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}
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}
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}
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}
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JSValue convertNPVariantToValue(JSGlobalObject* exec, const NPVariant* variant, RootObject* rootObject)
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{
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JSLockHolder lock(exec);
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NPVariantType type = variant->type;
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if (type == NPVariantType_Bool)
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return jsBoolean(NPVARIANT_TO_BOOLEAN(*variant));
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if (type == NPVariantType_Null)
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return jsNull();
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if (type == NPVariantType_Void)
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return jsUndefined();
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if (type == NPVariantType_Int32)
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return jsNumber(NPVARIANT_TO_INT32(*variant));
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if (type == NPVariantType_Double)
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return jsNumber(NPVARIANT_TO_DOUBLE(*variant));
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if (type == NPVariantType_String)
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return jsStringWithCache(exec->vm(), convertNPStringToUTF16(&variant->value.stringValue));
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if (type == NPVariantType_Object) {
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NPObject* obj = variant->value.objectValue;
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if (obj->_class == NPScriptObjectClass)
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// Get JSObject from NP_JavaScriptObject.
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return ((JavaScriptObject*)obj)->imp;
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// Wrap NPObject in a CInstance.
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return CInstance::create(obj, rootObject)->createRuntimeObject(exec);
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}
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return jsUndefined();
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}
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String convertNPStringToUTF16(const NPString* string)
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{
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return String::fromUTF8WithLatin1Fallback(string->UTF8Characters, string->UTF8Length);
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}
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Identifier identifierFromNPIdentifier(JSGlobalObject* exec, const NPUTF8* name)
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{
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VM& vm = exec->vm();
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return Identifier::fromString(vm, convertUTF8ToUTF16WithLatin1Fallback(name, -1));
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}
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} }
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#endif // ENABLE(NETSCAPE_PLUGIN_API)
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