Implement CSP check for manifest fetching

Source/core/frame/csp/CSPDirectiveList.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/frame/csp/CSPDirectiveList.h"
 
 #include "core/dom/Document.h"
 #include "core/frame/LocalFrame.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "platform/ParsingUtilities.h"
+#include "platform/RuntimeEnabledFeatures.h"
 #include "platform/weborigin/KURL.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 CSPDirectiveList::CSPDirectiveList(ContentSecurityPolicy* policy, ContentSecurityPolicyHeaderType type, ContentSecurityPolicyHeaderSource source)
     : m_policy(policy)
     , m_headerType(type)
     , m_headerSource(source)
     , m_reportOnly(false)
@@ skipping 178 matching lines @@
     else if (ContentSecurityPolicy::FontSrc == effectiveDirective)
         prefix = "Refused to load the font '";
     else if (ContentSecurityPolicy::FormAction == effectiveDirective)
         prefix = "Refused to send form data to '";
     else if (ContentSecurityPolicy::FrameSrc == effectiveDirective)
         prefix = "Refused to frame '";
     else if (ContentSecurityPolicy::ImgSrc == effectiveDirective)
         prefix = "Refused to load the image '";
     else if (ContentSecurityPolicy::MediaSrc == effectiveDirective)
         prefix = "Refused to load media from '";
+    else if (ContentSecurityPolicy::ManifestSrc == effectiveDirective)
+        prefix = "Refused to load manifest from '";
     else if (ContentSecurityPolicy::ObjectSrc == effectiveDirective)
         prefix = "Refused to load plugin data from '";
     else if (ContentSecurityPolicy::ScriptSrc == effectiveDirective)
         prefix = "Refused to load the script '";
     else if (ContentSecurityPolicy::StyleSrc == effectiveDirective)
         prefix = "Refused to load the stylesheet '";
 
     String suffix = String();
     if (directive == m_defaultSrc)
         suffix = " Note that '" + effectiveDirective + "' was not explicitly set, so 'default-src' is used as a fallback.";
@@ skipping 113 matching lines @@
         checkSource(operativeDirective(m_fontSrc.get()), url);
 }
 
 bool CSPDirectiveList::allowMediaFromSource(const KURL& url, ContentSecurityPolicy::ReportingStatus reportingStatus) const
 {
     return reportingStatus == ContentSecurityPolicy::SendReport ?
         checkSourceAndReportViolation(operativeDirective(m_mediaSrc.get()), url, ContentSecurityPolicy::MediaSrc) :
         checkSource(operativeDirective(m_mediaSrc.get()), url);
 }
 
+bool CSPDirectiveList::allowManifestFromSource(const KURL& url, ContentSecurityPolicy::ReportingStatus reportingStatus) const
+{
+    return reportingStatus == ContentSecurityPolicy::SendReport ?
+        checkSourceAndReportViolation(operativeDirective(m_manifestSrc.get()), url, ContentSecurityPolicy::ManifestSrc) :
+        checkSource(operativeDirective(m_manifestSrc.get()), url);
+}
+
 bool CSPDirectiveList::allowConnectToSource(const KURL& url, ContentSecurityPolicy::ReportingStatus reportingStatus) const
 {
     return reportingStatus == ContentSecurityPolicy::SendReport ?
         checkSourceAndReportViolation(operativeDirective(m_connectSrc.get()), url, ContentSecurityPolicy::ConnectSrc) :
         checkSource(operativeDirective(m_connectSrc.get()), url);
 }
 
 bool CSPDirectiveList::allowFormAction(const KURL& url, ContentSecurityPolicy::ReportingStatus reportingStatus) const
 {
     return reportingStatus == ContentSecurityPolicy::SendReport ?
@@ skipping 313 matching lines @@
     } else if (equalIgnoringCase(name, ContentSecurityPolicy::ChildSrc)) {
         setCSPDirective<SourceListDirective>(name, value, m_childSrc);
     } else if (equalIgnoringCase(name, ContentSecurityPolicy::FormAction)) {
         setCSPDirective<SourceListDirective>(name, value, m_formAction);
     } else if (equalIgnoringCase(name, ContentSecurityPolicy::PluginTypes)) {
         setCSPDirective<MediaListDirective>(name, value, m_pluginTypes);
     } else if (equalIgnoringCase(name, ContentSecurityPolicy::ReflectedXSS)) {
         parseReflectedXSS(name, value);
     } else if (equalIgnoringCase(name, ContentSecurityPolicy::Referrer)) {
         parseReferrer(name, value);
+    } else if (m_policy->experimentalFeaturesEnabled()) {
+        if (equalIgnoringCase(name, ContentSecurityPolicy::ManifestSrc))
+            setCSPDirective<SourceListDirective>(name, value, m_manifestSrc);
+        else
+            m_policy->reportUnsupportedDirective(name);
     } else {
         m_policy->reportUnsupportedDirective(name);
     }
 }
 
 
 } // namespace blink