XSSAuditorDelegate.cpp [plain text]
#include "config.h"
#include "XSSAuditorDelegate.h"
#include "Document.h"
#include "DocumentLoader.h"
#include "FormData.h"
#include "Frame.h"
#include "FrameLoader.h"
#include "FrameLoaderClient.h"
#include "HTMLParserIdioms.h"
#include "NavigationScheduler.h"
#include "PingLoader.h"
#include <wtf/JSONValues.h>
#include <wtf/text/StringBuilder.h>
#include <wtf/text/CString.h>
namespace WebCore {
using namespace Inspector;
XSSAuditorDelegate::XSSAuditorDelegate(Document& document)
: m_document(document)
{
ASSERT(isMainThread());
}
static inline String buildConsoleError(const XSSInfo& xssInfo)
{
StringBuilder message;
message.appendLiteral("The XSS Auditor ");
message.append(xssInfo.m_didBlockEntirePage ? "blocked access to" : "refused to execute a script in");
message.appendLiteral(" '");
message.append(xssInfo.m_originalURL);
message.appendLiteral("' because ");
message.append(xssInfo.m_didBlockEntirePage ? "the source code of a script" : "its source code");
message.appendLiteral(" was found within the request.");
if (xssInfo.m_didSendXSSProtectionHeader)
message.appendLiteral(" The server sent an 'X-XSS-Protection' header requesting this behavior.");
else
message.appendLiteral(" The auditor was enabled because the server did not send an 'X-XSS-Protection' header.");
return message.toString();
}
Ref<FormData> XSSAuditorDelegate::generateViolationReport(const XSSInfo& xssInfo)
{
ASSERT(isMainThread());
auto& frameLoader = m_document.frame()->loader();
String httpBody;
if (frameLoader.documentLoader()) {
if (auto formData = makeRefPtr(frameLoader.documentLoader()->originalRequest().httpBody()))
httpBody = formData->flattenToString();
}
auto reportDetails = JSON::Object::create();
reportDetails->setString("request-url", xssInfo.m_originalURL);
reportDetails->setString("request-body", httpBody);
auto reportObject = JSON::Object::create();
reportObject->setObject("xss-report", WTFMove(reportDetails));
return FormData::create(reportObject->toJSONString().utf8().data());
}
void XSSAuditorDelegate::didBlockScript(const XSSInfo& xssInfo)
{
ASSERT(isMainThread());
m_document.addConsoleMessage(MessageSource::JS, MessageLevel::Error, buildConsoleError(xssInfo));
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(xssInfo), ViolationReportType::XSSAuditor);
}
if (xssInfo.m_didBlockEntirePage)
m_document.frame()->navigationScheduler().schedulePageBlock(m_document);
}
}