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author | Lorry Tar Creator <lorry-tar-importer@lorry> | 2017-06-27 06:07:23 +0000 |
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committer | Lorry Tar Creator <lorry-tar-importer@lorry> | 2017-06-27 06:07:23 +0000 |
commit | 1bf1084f2b10c3b47fd1a588d85d21ed0eb41d0c (patch) | |
tree | 46dcd36c86e7fbc6e5df36deb463b33e9967a6f7 /Source/WebCore/bindings/js/JSDOMBinding.cpp | |
parent | 32761a6cee1d0dee366b885b7b9c777e67885688 (diff) | |
download | WebKitGtk-tarball-master.tar.gz |
webkitgtk-2.16.5HEADwebkitgtk-2.16.5master
Diffstat (limited to 'Source/WebCore/bindings/js/JSDOMBinding.cpp')
-rw-r--r-- | Source/WebCore/bindings/js/JSDOMBinding.cpp | 536 |
1 files changed, 0 insertions, 536 deletions
diff --git a/Source/WebCore/bindings/js/JSDOMBinding.cpp b/Source/WebCore/bindings/js/JSDOMBinding.cpp deleted file mode 100644 index a32d332ad..000000000 --- a/Source/WebCore/bindings/js/JSDOMBinding.cpp +++ /dev/null @@ -1,536 +0,0 @@ -/* - * Copyright (C) 1999-2001 Harri Porten (porten@kde.org) - * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2013 Apple Inc. All rights reserved. - * Copyright (C) 2007 Samuel Weinig <sam@webkit.org> - * Copyright (C) 2013 Michael Pruett <michael@68k.org> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "config.h" -#include "JSDOMBinding.h" - -#include "CachedScript.h" -#include "DOMConstructorWithDocument.h" -#include "DOMObjectHashTableMap.h" -#include "DOMStringList.h" -#include "ExceptionCode.h" -#include "ExceptionHeaders.h" -#include "ExceptionInterfaces.h" -#include "Frame.h" -#include "HTMLParserIdioms.h" -#include "JSDOMWindowCustom.h" -#include "JSExceptionBase.h" -#include "SecurityOrigin.h" -#include "ScriptCallStack.h" -#include "ScriptCallStackFactory.h" -#include <interpreter/Interpreter.h> -#include <runtime/DateInstance.h> -#include <runtime/Error.h> -#include <runtime/ExceptionHelpers.h> -#include <runtime/JSFunction.h> -#include <wtf/MathExtras.h> - -using namespace JSC; - -namespace WebCore { - -STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(DOMConstructorObject); -STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(DOMConstructorWithDocument); - -void addImpureProperty(const AtomicString& propertyName) -{ - JSDOMWindow::commonVM()->addImpureProperty(propertyName); -} - -const JSC::HashTable& getHashTableForGlobalData(VM& vm, const JSC::HashTable& staticTable) -{ - return DOMObjectHashTableMap::mapFor(vm).get(staticTable); -} - -JSValue jsStringOrNull(ExecState* exec, const String& s) -{ - if (s.isNull()) - return jsNull(); - return jsStringWithCache(exec, s); -} - -JSValue jsOwnedStringOrNull(ExecState* exec, const String& s) -{ - if (s.isNull()) - return jsNull(); - return jsOwnedString(exec, s); -} - -JSValue jsStringOrUndefined(ExecState* exec, const String& s) -{ - if (s.isNull()) - return jsUndefined(); - return jsStringWithCache(exec, s); -} - -JSValue jsString(ExecState* exec, const URL& url) -{ - return jsStringWithCache(exec, url.string()); -} - -JSValue jsStringOrNull(ExecState* exec, const URL& url) -{ - if (url.isNull()) - return jsNull(); - return jsStringWithCache(exec, url.string()); -} - -JSValue jsStringOrUndefined(ExecState* exec, const URL& url) -{ - if (url.isNull()) - return jsUndefined(); - return jsStringWithCache(exec, url.string()); -} - -AtomicStringImpl* findAtomicString(PropertyName propertyName) -{ - StringImpl* impl = propertyName.publicName(); - if (!impl) - return 0; - ASSERT(impl->existingHash()); - return AtomicString::find(impl); -} - -String valueToStringWithNullCheck(ExecState* exec, JSValue value) -{ - if (value.isNull()) - return String(); - return value.toString(exec)->value(exec); -} - -String valueToStringWithUndefinedOrNullCheck(ExecState* exec, JSValue value) -{ - if (value.isUndefinedOrNull()) - return String(); - return value.toString(exec)->value(exec); -} - -JSValue jsDateOrNull(ExecState* exec, double value) -{ - if (!std::isfinite(value)) - return jsNull(); - return DateInstance::create(exec->vm(), exec->lexicalGlobalObject()->dateStructure(), value); -} - -double valueToDate(ExecState* exec, JSValue value) -{ - if (value.isNumber()) - return value.asNumber(); - if (!value.inherits(DateInstance::info())) - return std::numeric_limits<double>::quiet_NaN(); - return static_cast<DateInstance*>(value.toObject(exec))->internalNumber(); -} - -JSC::JSValue jsArray(JSC::ExecState* exec, JSDOMGlobalObject* globalObject, PassRefPtr<DOMStringList> stringList) -{ - JSC::MarkedArgumentBuffer list; - if (stringList) { - for (unsigned i = 0; i < stringList->length(); ++i) - list.append(jsStringWithCache(exec, stringList->item(i))); - } - return JSC::constructArray(exec, 0, globalObject, list); -} - -void reportException(ExecState* exec, JSValue exception, CachedScript* cachedScript) -{ - if (isTerminatedExecutionException(exception)) - return; - - Interpreter::ErrorHandlingMode mode(exec); - - RefPtr<ScriptCallStack> callStack(createScriptCallStackFromException(exec, exception, ScriptCallStack::maxCallStackSizeToCapture)); - exec->clearException(); - exec->clearSupplementaryExceptionInfo(); - - JSDOMGlobalObject* globalObject = jsCast<JSDOMGlobalObject*>(exec->lexicalGlobalObject()); - if (JSDOMWindow* window = jsDynamicCast<JSDOMWindow*>(globalObject)) { - if (!window->impl().isCurrentlyDisplayedInFrame()) - return; - } - - int lineNumber = 0; - int columnNumber = 0; - String exceptionSourceURL; - if (callStack->size()) { - const ScriptCallFrame& frame = callStack->at(0); - lineNumber = frame.lineNumber(); - columnNumber = frame.columnNumber(); - exceptionSourceURL = frame.sourceURL(); - } else { - // There may not be an exceptionStack for a <script> SyntaxError. Fallback to getting at least the line and sourceURL from the exception. - JSObject* exceptionObject = exception.toObject(exec); - JSValue lineValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "line")); - lineNumber = lineValue && lineValue.isNumber() ? int(lineValue.toNumber(exec)) : 0; - JSValue columnValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "column")); - columnNumber = columnValue && columnValue.isNumber() ? int(columnValue.toNumber(exec)) : 0; - JSValue sourceURLValue = exceptionObject->getDirect(exec->vm(), Identifier(exec, "sourceURL")); - exceptionSourceURL = sourceURLValue && sourceURLValue.isString() ? sourceURLValue.toString(exec)->value(exec) : ASCIILiteral("undefined"); - } - - String errorMessage; - if (ExceptionBase* exceptionBase = toExceptionBase(exception)) - errorMessage = exceptionBase->message() + ": " + exceptionBase->description(); - else { - // FIXME: <http://webkit.org/b/115087> Web Inspector: WebCore::reportException should not evaluate JavaScript handling exceptions - // If this is a custon exception object, call toString on it to try and get a nice string representation for the exception. - errorMessage = exception.toString(exec)->value(exec); - exec->clearException(); - exec->clearSupplementaryExceptionInfo(); - } - - ScriptExecutionContext* scriptExecutionContext = globalObject->scriptExecutionContext(); - scriptExecutionContext->reportException(errorMessage, lineNumber, columnNumber, exceptionSourceURL, callStack->size() ? callStack : 0, cachedScript); -} - -void reportCurrentException(ExecState* exec) -{ - JSValue exception = exec->exception(); - exec->clearException(); - reportException(exec, exception); -} - -#define TRY_TO_CREATE_EXCEPTION(interfaceName) \ - case interfaceName##Type: \ - errorObject = toJS(exec, globalObject, interfaceName::create(description)); \ - break; - -void setDOMException(ExecState* exec, ExceptionCode ec) -{ - if (!ec || exec->hadException()) - return; - - // FIXME: Handle other WebIDL exception types. - if (ec == TypeError) { - throwTypeError(exec); - return; - } - - // FIXME: All callers to setDOMException need to pass in the right global object - // for now, we're going to assume the lexicalGlobalObject. Which is wrong in cases like this: - // frames[0].document.createElement(null, null); // throws an exception which should have the subframes prototypes. - JSDOMGlobalObject* globalObject = deprecatedGlobalObjectForPrototype(exec); - - ExceptionCodeDescription description(ec); - - JSValue errorObject; - switch (description.type) { - DOM_EXCEPTION_INTERFACES_FOR_EACH(TRY_TO_CREATE_EXCEPTION) - } - - ASSERT(errorObject); - exec->vm().throwException(exec, errorObject); -} - -#undef TRY_TO_CREATE_EXCEPTION - -bool shouldAllowAccessToNode(ExecState* exec, Node* node) -{ - return BindingSecurity::shouldAllowAccessToNode(exec, node); -} - -bool shouldAllowAccessToFrame(ExecState* exec, Frame* target) -{ - return BindingSecurity::shouldAllowAccessToFrame(exec, target); -} - -bool shouldAllowAccessToFrame(ExecState* exec, Frame* frame, String& message) -{ - if (!frame) - return false; - if (BindingSecurity::shouldAllowAccessToFrame(exec, frame, DoNotReportSecurityError)) - return true; - message = frame->document()->domWindow()->crossDomainAccessErrorMessage(activeDOMWindow(exec)); - return false; -} - -bool shouldAllowAccessToDOMWindow(ExecState* exec, DOMWindow& target, String& message) -{ - if (BindingSecurity::shouldAllowAccessToDOMWindow(exec, target, DoNotReportSecurityError)) - return true; - message = target.crossDomainAccessErrorMessage(activeDOMWindow(exec)); - return false; -} - -void printErrorMessageForFrame(Frame* frame, const String& message) -{ - if (!frame) - return; - frame->document()->domWindow()->printErrorMessage(message); -} - -EncodedJSValue objectToStringFunctionGetter(ExecState* exec, EncodedJSValue, EncodedJSValue, PropertyName propertyName) -{ - return JSValue::encode(JSFunction::create(exec->vm(), exec->lexicalGlobalObject(), 0, propertyName.publicName(), objectProtoFuncToString)); -} - -Structure* getCachedDOMStructure(JSDOMGlobalObject* globalObject, const ClassInfo* classInfo) -{ - JSDOMStructureMap& structures = globalObject->structures(); - return structures.get(classInfo).get(); -} - -Structure* cacheDOMStructure(JSDOMGlobalObject* globalObject, Structure* structure, const ClassInfo* classInfo) -{ - JSDOMStructureMap& structures = globalObject->structures(); - ASSERT(!structures.contains(classInfo)); - return structures.set(classInfo, WriteBarrier<Structure>(globalObject->vm(), globalObject, structure)).iterator->value.get(); -} - -static const int32_t kMaxInt32 = 0x7fffffff; -static const int32_t kMinInt32 = -kMaxInt32 - 1; -static const uint32_t kMaxUInt32 = 0xffffffffU; -static const int64_t kJSMaxInteger = 0x20000000000000LL - 1; // 2^53 - 1, largest integer exactly representable in ECMAScript. - -static double enforceRange(ExecState* exec, double x, double minimum, double maximum) -{ - if (std::isnan(x) || std::isinf(x)) { - throwTypeError(exec); - return 0; - } - x = trunc(x); - if (x < minimum || x > maximum) { - throwTypeError(exec); - return 0; - } - return x; -} - -template <typename T> -struct IntTypeLimits { -}; - -template <> -struct IntTypeLimits<int8_t> { - static const int8_t minValue = -128; - static const int8_t maxValue = 127; - static const unsigned numberOfValues = 256; // 2^8 -}; - -template <> -struct IntTypeLimits<uint8_t> { - static const uint8_t maxValue = 255; - static const unsigned numberOfValues = 256; // 2^8 -}; - -template <> -struct IntTypeLimits<int16_t> { - static const short minValue = -32768; - static const short maxValue = 32767; - static const unsigned numberOfValues = 65536; // 2^16 -}; - -template <> -struct IntTypeLimits<uint16_t> { - static const unsigned short maxValue = 65535; - static const unsigned numberOfValues = 65536; // 2^16 -}; - -template <typename T> -static inline T toSmallerInt(ExecState* exec, JSValue value, IntegerConversionConfiguration configuration) -{ - typedef IntTypeLimits<T> LimitsTrait; - // Fast path if the value is already a 32-bit signed integer in the right range. - if (value.isInt32()) { - int32_t d = value.asInt32(); - if (d >= LimitsTrait::minValue && d <= LimitsTrait::maxValue) - return static_cast<T>(d); - if (configuration == EnforceRange) { - throwTypeError(exec); - return 0; - } - d %= LimitsTrait::numberOfValues; - return static_cast<T>(d > LimitsTrait::maxValue ? d - LimitsTrait::numberOfValues : d); - } - - double x = value.toNumber(exec); - if (exec->hadException()) - return 0; - - if (configuration == EnforceRange) - return enforceRange(exec, x, LimitsTrait::minValue, LimitsTrait::maxValue); - - if (std::isnan(x) || std::isinf(x) || !x) - return 0; - - x = x < 0 ? -floor(fabs(x)) : floor(fabs(x)); - x = fmod(x, LimitsTrait::numberOfValues); - - return static_cast<T>(x > LimitsTrait::maxValue ? x - LimitsTrait::numberOfValues : x); -} - -template <typename T> -static inline T toSmallerUInt(ExecState* exec, JSValue value, IntegerConversionConfiguration configuration) -{ - typedef IntTypeLimits<T> LimitsTrait; - // Fast path if the value is already a 32-bit unsigned integer in the right range. - if (value.isUInt32()) { - uint32_t d = value.asUInt32(); - if (d <= LimitsTrait::maxValue) - return static_cast<T>(d); - if (configuration == EnforceRange) { - throwTypeError(exec); - return 0; - } - return static_cast<T>(d); - } - - double x = value.toNumber(exec); - if (exec->hadException()) - return 0; - - if (configuration == EnforceRange) - return enforceRange(exec, x, 0, LimitsTrait::maxValue); - - if (std::isnan(x) || std::isinf(x) || !x) - return 0; - - x = x < 0 ? -floor(fabs(x)) : floor(fabs(x)); - return static_cast<T>(fmod(x, LimitsTrait::numberOfValues)); -} - -// http://www.w3.org/TR/WebIDL/#es-byte -int8_t toInt8(ExecState* exec, JSValue value, IntegerConversionConfiguration configuration) -{ - return toSmallerInt<int8_t>(exec, value, configuration); -} - -// http://www.w3.org/TR/WebIDL/#es-octet -uint8_t toUInt8(ExecState* exec, JSValue value, IntegerConversionConfiguration configuration) -{ - return toSmallerUInt<uint8_t>(exec, value, configuration); -} - -// http://www.w3.org/TR/WebIDL/#es-short -int16_t toInt16(ExecState* exec, JSValue value, IntegerConversionConfiguration configuration) -{ - return toSmallerInt<int16_t>(exec, value, configuration); -} - -// http://www.w3.org/TR/WebIDL/#es-unsigned-short -uint16_t toUInt16(ExecState* exec, JSValue value, IntegerConversionConfiguration configuration) -{ - return toSmallerUInt<uint16_t>(exec, value, configuration); -} - -// http://www.w3.org/TR/WebIDL/#es-long -int32_t toInt32EnforceRange(ExecState* exec, JSValue value) -{ - if (value.isInt32()) - return value.asInt32(); - - double x = value.toNumber(exec); - if (exec->hadException()) - return 0; - return enforceRange(exec, x, kMinInt32, kMaxInt32); -} - -// http://www.w3.org/TR/WebIDL/#es-unsigned-long -uint32_t toUInt32EnforceRange(ExecState* exec, JSValue value) -{ - if (value.isUInt32()) - return value.asUInt32(); - - double x = value.toNumber(exec); - if (exec->hadException()) - return 0; - return enforceRange(exec, x, 0, kMaxUInt32); -} - -// http://www.w3.org/TR/WebIDL/#es-long-long -int64_t toInt64(ExecState* exec, JSValue value, IntegerConversionConfiguration configuration) -{ - if (value.isInt32()) - return value.asInt32(); - - double x = value.toNumber(exec); - if (exec->hadException()) - return 0; - - if (configuration == EnforceRange) - return enforceRange(exec, x, -kJSMaxInteger, kJSMaxInteger); - - // Map NaNs and +/-Infinity to 0; convert finite values modulo 2^64. - unsigned long long n; - doubleToInteger(x, n); - return n; -} - -// http://www.w3.org/TR/WebIDL/#es-unsigned-long-long -uint64_t toUInt64(ExecState* exec, JSValue value, IntegerConversionConfiguration configuration) -{ - if (value.isUInt32()) - return value.asUInt32(); - - double x = value.toNumber(exec); - if (exec->hadException()) - return 0; - - if (configuration == EnforceRange) - return enforceRange(exec, x, 0, kJSMaxInteger); - - // Map NaNs and +/-Infinity to 0; convert finite values modulo 2^64. - unsigned long long n; - doubleToInteger(x, n); - return n; -} - -DOMWindow& activeDOMWindow(ExecState* exec) -{ - return asJSDOMWindow(exec->lexicalGlobalObject())->impl(); -} - -DOMWindow& firstDOMWindow(ExecState* exec) -{ - return asJSDOMWindow(exec->vmEntryGlobalObject())->impl(); -} - -static inline bool canAccessDocument(JSC::ExecState* state, Document* targetDocument, SecurityReportingOption reportingOption = ReportSecurityError) -{ - if (!targetDocument) - return false; - - DOMWindow& active = activeDOMWindow(state); - - if (active.document()->securityOrigin()->canAccess(targetDocument->securityOrigin())) - return true; - - if (reportingOption == ReportSecurityError) - printErrorMessageForFrame(targetDocument->frame(), targetDocument->domWindow()->crossDomainAccessErrorMessage(active)); - - return false; -} - -bool BindingSecurity::shouldAllowAccessToDOMWindow(JSC::ExecState* state, DOMWindow& target, SecurityReportingOption reportingOption) -{ - return canAccessDocument(state, target.document(), reportingOption); -} - -bool BindingSecurity::shouldAllowAccessToFrame(JSC::ExecState* state, Frame* target, SecurityReportingOption reportingOption) -{ - return target && canAccessDocument(state, target->document(), reportingOption); -} - -bool BindingSecurity::shouldAllowAccessToNode(JSC::ExecState* state, Node* target) -{ - return target && canAccessDocument(state, &target->document()); -} - -} // namespace WebCore |