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27 #include "core/html/parser/XSSAuditorDelegate.h"
29 #include "core/dom/Document.h"
30 #include "core/frame/LocalFrame.h"
31 #include "core/inspector/ConsoleMessage.h"
32 #include "core/loader/DocumentLoader.h"
33 #include "core/loader/FrameLoader.h"
34 #include "core/loader/FrameLoaderClient.h"
35 #include "core/loader/PingLoader.h"
36 #include "platform/JSONValues.h"
37 #include "platform/network/FormData.h"
38 #include "platform/weborigin/SecurityOrigin.h"
39 #include "wtf/text/StringBuilder.h"
43 String XSSInfo::buildConsoleError() const
45 StringBuilder message;
46 message.appendLiteral("The XSS Auditor ");
47 message.append(m_didBlockEntirePage ? "blocked access to" : "refused to execute a script in");
48 message.appendLiteral(" '");
49 message.append(m_originalURL);
50 message.appendLiteral("' because ");
51 message.append(m_didBlockEntirePage ? "the source code of a script" : "its source code");
52 message.appendLiteral(" was found within the request.");
54 if (m_didSendCSPHeader)
55 message.appendLiteral(" The server sent a 'Content-Security-Policy' header requesting this behavior.");
56 else if (m_didSendXSSProtectionHeader)
57 message.appendLiteral(" The server sent an 'X-XSS-Protection' header requesting this behavior.");
59 message.appendLiteral(" The auditor was enabled as the server sent neither an 'X-XSS-Protection' nor 'Content-Security-Policy' header.");
61 return message.toString();
64 bool XSSInfo::isSafeToSendToAnotherThread() const
66 return m_originalURL.isSafeToSendToAnotherThread();
69 XSSAuditorDelegate::XSSAuditorDelegate(Document* document)
70 : m_document(document)
71 , m_didSendNotifications(false)
73 ASSERT(isMainThread());
77 void XSSAuditorDelegate::trace(Visitor* visitor)
79 visitor->trace(m_document);
82 PassRefPtr<FormData> XSSAuditorDelegate::generateViolationReport(const XSSInfo& xssInfo)
84 ASSERT(isMainThread());
86 FrameLoader& frameLoader = m_document->frame()->loader();
88 if (frameLoader.documentLoader()) {
89 if (FormData* formData = frameLoader.documentLoader()->originalRequest().httpBody())
90 httpBody = formData->flattenToString();
93 RefPtr<JSONObject> reportDetails = JSONObject::create();
94 reportDetails->setString("request-url", xssInfo.m_originalURL);
95 reportDetails->setString("request-body", httpBody);
97 RefPtr<JSONObject> reportObject = JSONObject::create();
98 reportObject->setObject("xss-report", reportDetails.release());
100 return FormData::create(reportObject->toJSONString().utf8().data());
103 void XSSAuditorDelegate::didBlockScript(const XSSInfo& xssInfo)
105 ASSERT(isMainThread());
107 m_document->addConsoleMessage(ConsoleMessage::create(JSMessageSource, ErrorMessageLevel, xssInfo.buildConsoleError()));
109 // stopAllLoaders can detach the LocalFrame, so protect it.
110 RefPtrWillBeRawPtr<LocalFrame> protect(m_document->frame());
111 FrameLoader& frameLoader = m_document->frame()->loader();
112 if (xssInfo.m_didBlockEntirePage)
113 frameLoader.stopAllLoaders();
115 if (!m_didSendNotifications) {
116 m_didSendNotifications = true;
118 frameLoader.client()->didDetectXSS(m_document->url(), xssInfo.m_didBlockEntirePage);
120 if (!m_reportURL.isEmpty())
121 PingLoader::sendViolationReport(m_document->frame(), m_reportURL, generateViolationReport(xssInfo), PingLoader::XSSAuditorViolationReport);
124 if (xssInfo.m_didBlockEntirePage)
125 m_document->frame()->navigationScheduler().schedulePageBlock(m_document, Referrer());