XSSAuditorDelegate.cpp [plain text]
#include "config.h"
#include "XSSAuditorDelegate.h"
#include "Console.h"
#include "DOMWindow.h"
#include "Document.h"
#include "DocumentLoader.h"
#include "FormData.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameLoaderClient.h"
#include "HTMLParserIdioms.h"
#include "InspectorValues.h"
#include "PingLoader.h"
#include "SecurityOrigin.h"
#include <wtf/text/StringBuilder.h>
#include <wtf/text/CString.h>
#if PLATFORM(IOS)
#include "WebCoreThread.h"
#endif
namespace WebCore {
XSSAuditorDelegate::XSSAuditorDelegate(Document* document)
: m_document(document)
, m_didSendNotifications(false)
{
#if !PLATFORM(IOS)
ASSERT(isMainThread());
#else
ASSERT((isMainThread() || pthread_main_np()) && WebThreadIsLockedOrDisabled());
#endif // !PLATFORM(IOS)
ASSERT(m_document);
}
static inline String buildConsoleError(const XSSInfo& xssInfo, const String& url)
{
StringBuilder message;
message.append("The XSS Auditor ");
message.append(xssInfo.m_didBlockEntirePage ? "blocked access to" : "refused to execute a script in");
message.append(" '");
message.append(url);
message.append("' because ");
message.append(xssInfo.m_didBlockEntirePage ? "the source code of a script" : "its source code");
message.append(" was found within the request.");
if (xssInfo.m_didSendCSPHeader)
message.append(" The server sent a 'Content-Security-Policy' header requesting this behavior.");
else if (xssInfo.m_didSendXSSProtectionHeader)
message.append(" The server sent an 'X-XSS-Protection' header requesting this behavior.");
else
message.append(" The auditor was enabled as the server sent neither an 'X-XSS-Protection' nor 'Content-Security-Policy' header.");
return message.toString();
}
PassRefPtr<FormData> XSSAuditorDelegate::generateViolationReport()
{
#if !PLATFORM(IOS)
ASSERT(isMainThread());
#else
ASSERT((isMainThread() || pthread_main_np()) && WebThreadIsLockedOrDisabled());
#endif // !PLATFORM(IOS)
FrameLoader* frameLoader = m_document->frame()->loader();
String httpBody;
if (frameLoader->documentLoader()) {
if (FormData* formData = frameLoader->documentLoader()->originalRequest().httpBody())
httpBody = formData->flattenToString();
}
RefPtr<InspectorObject> reportDetails = InspectorObject::create();
reportDetails->setString("request-url", m_document->url().string());
reportDetails->setString("request-body", httpBody);
RefPtr<InspectorObject> reportObject = InspectorObject::create();
reportObject->setObject("xss-report", reportDetails.release());
return FormData::create(reportObject->toJSONString().utf8().data());
}
void XSSAuditorDelegate::didBlockScript(const XSSInfo& xssInfo)
{
#if !PLATFORM(IOS)
ASSERT(isMainThread());
#else
ASSERT((isMainThread() || pthread_main_np()) && WebThreadIsLockedOrDisabled());
#endif // !PLATFORM(IOS)
m_document->addConsoleMessage(JSMessageSource, ErrorMessageLevel, buildConsoleError(xssInfo, m_document->url().string()));
FrameLoader* frameLoader = m_document->frame()->loader();
if (xssInfo.m_didBlockEntirePage)
frameLoader->stopAllLoaders();
if (!m_didSendNotifications) {
m_didSendNotifications = true;
frameLoader->client()->didDetectXSS(m_document->url(), xssInfo.m_didBlockEntirePage);
if (!m_reportURL.isEmpty())
PingLoader::sendViolationReport(m_document->frame(), m_reportURL, generateViolationReport());
}
if (xssInfo.m_didBlockEntirePage)
m_document->frame()->navigationScheduler()->scheduleLocationChange(m_document->securityOrigin(), SecurityOrigin::urlWithUniqueSecurityOrigin(), String());
}
}