CORS-RFC1918: Introduce 'treat-as-public-address' CSP directive

third_party/WebKit/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 "core/frame/csp/CSPDirectiveList.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/SecurityContext.h"
 #include "core/dom/SpaceSplitString.h"
 #include "core/frame/LocalFrame.h"
@@ skipping 35 matching lines @@
     , m_headerType(type)
     , m_headerSource(source)
     , m_reportOnly(false)
     , m_hasSandboxPolicy(false)
     , m_hasSuboriginPolicy(false)
     , m_reflectedXSSDisposition(ReflectedXSSUnset)
     , m_didSetReferrerPolicy(false)
     , m_referrerPolicy(ReferrerPolicyDefault)
     , m_strictMixedContentCheckingEnforced(false)
     , m_upgradeInsecureRequests(false)
+    , m_treatAsPublicAddress(false)
 {
     m_reportOnly = type == ContentSecurityPolicyHeaderTypeReport;
 }
 
 PassOwnPtr<CSPDirectiveList> CSPDirectiveList::create(ContentSecurityPolicy* policy, const UChar* begin, const UChar* end, ContentSecurityPolicyHeaderType type, ContentSecurityPolicyHeaderSource source)
 {
     OwnPtr<CSPDirectiveList> directives = adoptPtr(new CSPDirectiveList(policy, type, source));
     directives->parse(begin, end);
 
     if (!directives->checkEval(directives->operativeDirective(directives->m_scriptSrc.get()))) {
@@ skipping 516 matching lines @@
         return;
     }
     m_hasSandboxPolicy = true;
     String invalidTokens;
     SpaceSplitString policyTokens(AtomicString(sandboxPolicy), SpaceSplitString::ShouldNotFoldCase);
     m_policy->enforceSandboxFlags(parseSandboxPolicy(policyTokens, invalidTokens));
     if (!invalidTokens.isNull())
         m_policy->reportInvalidSandboxFlags(invalidTokens);
 }
 
+void CSPDirectiveList::treatAsPublicAddress(const String& name, const String& value)
+{
+    if (m_reportOnly) {
+        m_policy->reportInvalidInReportOnly(name);
+        return;
+    }
+    if (m_treatAsPublicAddress) {
+        m_policy->reportDuplicateDirective(name);
+        return;
+    }
+    m_treatAsPublicAddress = true;
+    m_policy->treatAsPublicAddress();
+    if (!value.isEmpty())
+        m_policy->reportValueForEmptyDirective(name, value);
+}
+
 void CSPDirectiveList::enforceStrictMixedContentChecking(const String& name, const String& value)
 {
     if (m_reportOnly) {
         m_policy->reportInvalidInReportOnly(name);
         return;
     }
     if (m_strictMixedContentCheckingEnforced) {
         m_policy->reportDuplicateDirective(name);
         return;
     }
@@ skipping 212 matching lines @@
     } else if (equalIgnoringCase(name, ContentSecurityPolicy::Referrer)) {
         parseReferrer(name, value);
     } else if (equalIgnoringCase(name, ContentSecurityPolicy::UpgradeInsecureRequests)) {
         enableInsecureRequestsUpgrade(name, value);
     } else if (equalIgnoringCase(name, ContentSecurityPolicy::BlockAllMixedContent)) {
         enforceStrictMixedContentChecking(name, value);
     } else if (equalIgnoringCase(name, ContentSecurityPolicy::ManifestSrc)) {
         setCSPDirective<SourceListDirective>(name, value, m_manifestSrc);
     } else if (RuntimeEnabledFeatures::suboriginsEnabled() && equalIgnoringCase(name, ContentSecurityPolicy::Suborigin)) {
         applySuboriginPolicy(name, value);
+    } else if (equalIgnoringCase(name, ContentSecurityPolicy::TreatAsPublicAddress)) {
+        treatAsPublicAddress(name, value);
     } else {
         m_policy->reportUnsupportedDirective(name);
     }
 }
 
 
 } // namespace blink