| /* |
| * Copyright (C) 2009 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "ScriptEventListener.h" |
| |
| #include "Attribute.h" |
| #include "Document.h" |
| #include "EventListener.h" |
| #include "Frame.h" |
| #include "ScriptScope.h" |
| #include "Tokenizer.h" |
| #include "V8AbstractEventListener.h" |
| #include "V8Binding.h" |
| #include "XSSAuditor.h" |
| |
| namespace WebCore { |
| |
| PassRefPtr<V8LazyEventListener> createAttributeEventListener(Node* node, Attribute* attr) |
| { |
| ASSERT(node); |
| ASSERT(attr); |
| if (attr->isNull()) |
| return 0; |
| |
| int lineNumber = 1; |
| int columnNumber = 0; |
| String sourceURL; |
| |
| if (Frame* frame = node->document()->frame()) { |
| ScriptController* scriptController = frame->script(); |
| if (!scriptController->canExecuteScripts()) |
| return 0; |
| |
| if (!scriptController->xssAuditor()->canCreateInlineEventListener(attr->localName().string(), attr->value())) { |
| // This script is not safe to execute. |
| return 0; |
| } |
| |
| if (frame->document()->tokenizer()) { |
| // FIXME: Change to use script->eventHandlerLineNumber() when implemented. |
| lineNumber = frame->document()->tokenizer()->lineNumber(); |
| columnNumber = frame->document()->tokenizer()->columnNumber(); |
| } |
| sourceURL = node->document()->url().string(); |
| } |
| |
| return V8LazyEventListener::create(attr->localName().string(), node->isSVGElement(), attr->value(), sourceURL, lineNumber, columnNumber, WorldContextHandle(UseMainWorld)); |
| } |
| |
| PassRefPtr<V8LazyEventListener> createAttributeEventListener(Frame* frame, Attribute* attr) |
| { |
| if (!frame) |
| return 0; |
| |
| ASSERT(attr); |
| if (attr->isNull()) |
| return 0; |
| |
| int lineNumber = 1; |
| int columnNumber = 0; |
| String sourceURL; |
| |
| ScriptController* scriptController = frame->script(); |
| if (!scriptController->canExecuteScripts()) |
| return 0; |
| |
| if (!scriptController->xssAuditor()->canCreateInlineEventListener(attr->localName().string(), attr->value())) { |
| // This script is not safe to execute. |
| return 0; |
| } |
| |
| if (frame->document()->tokenizer()) { |
| // FIXME: Change to use script->eventHandlerLineNumber() when implemented. |
| lineNumber = frame->document()->tokenizer()->lineNumber(); |
| columnNumber = frame->document()->tokenizer()->columnNumber(); |
| } |
| sourceURL = frame->document()->url().string(); |
| return V8LazyEventListener::create(attr->localName().string(), frame->document()->isSVGDocument(), attr->value(), sourceURL, lineNumber, columnNumber, WorldContextHandle(UseMainWorld)); |
| } |
| |
| String getEventListenerHandlerBody(ScriptExecutionContext* context, ScriptState* scriptState, EventListener* listener) |
| { |
| if (listener->type() != EventListener::JSEventListenerType) |
| return ""; |
| |
| ScriptScope scope(scriptState); |
| V8AbstractEventListener* v8Listener = static_cast<V8AbstractEventListener*>(listener); |
| v8::Handle<v8::Object> function = v8Listener->getListenerObject(context); |
| if (function.IsEmpty()) |
| return ""; |
| |
| return toWebCoreStringWithNullCheck(function); |
| } |
| |
| } // namespace WebCore |