| // 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. |
| |
| #ifndef CSPDirectiveList_h |
| #define CSPDirectiveList_h |
| |
| #include "core/frame/csp/ContentSecurityPolicy.h" |
| #include "core/frame/csp/MediaListDirective.h" |
| #include "core/frame/csp/SourceListDirective.h" |
| #include "platform/heap/Handle.h" |
| #include "platform/loader/fetch/Resource.h" |
| #include "platform/loader/fetch/ResourceRequest.h" |
| #include "platform/network/ContentSecurityPolicyParsers.h" |
| #include "platform/network/HTTPParsers.h" |
| #include "platform/weborigin/KURL.h" |
| #include "platform/weborigin/SecurityViolationReportingPolicy.h" |
| #include "platform/wtf/Vector.h" |
| #include "platform/wtf/text/AtomicString.h" |
| #include "platform/wtf/text/WTFString.h" |
| #include "public/platform/WebContentSecurityPolicy.h" |
| |
| namespace blink { |
| |
| class ContentSecurityPolicy; |
| |
| typedef HeapVector<Member<SourceListDirective>> SourceListDirectiveVector; |
| |
| class CORE_EXPORT CSPDirectiveList |
| : public GarbageCollectedFinalized<CSPDirectiveList> { |
| WTF_MAKE_NONCOPYABLE(CSPDirectiveList); |
| |
| public: |
| static CSPDirectiveList* Create(ContentSecurityPolicy*, |
| const UChar* begin, |
| const UChar* end, |
| ContentSecurityPolicyHeaderType, |
| ContentSecurityPolicyHeaderSource); |
| |
| void Parse(const UChar* begin, const UChar* end); |
| |
| const String& Header() const { return header_; } |
| ContentSecurityPolicyHeaderType HeaderType() const { return header_type_; } |
| ContentSecurityPolicyHeaderSource HeaderSource() const { |
| return header_source_; |
| } |
| |
| bool AllowJavaScriptURLs(Element*, |
| const String& source, |
| const String& context_url, |
| const WTF::OrdinalNumber& context_line, |
| SecurityViolationReportingPolicy) const; |
| bool AllowInlineEventHandlers(Element*, |
| const String& source, |
| const String& context_url, |
| const WTF::OrdinalNumber& context_line, |
| SecurityViolationReportingPolicy) const; |
| bool AllowInlineScript(Element*, |
| const String& context_url, |
| const String& nonce, |
| const WTF::OrdinalNumber& context_line, |
| SecurityViolationReportingPolicy, |
| const String& script_content) const; |
| bool AllowInlineStyle(Element*, |
| const String& context_url, |
| const String& nonce, |
| const WTF::OrdinalNumber& context_line, |
| SecurityViolationReportingPolicy, |
| const String& style_content) const; |
| bool AllowEval(ScriptState*, |
| SecurityViolationReportingPolicy, |
| ContentSecurityPolicy::ExceptionStatus, |
| const String& script_content) const; |
| bool AllowPluginType(const String& type, |
| const String& type_attribute, |
| const KURL&, |
| SecurityViolationReportingPolicy) const; |
| |
| bool AllowScriptFromSource(const KURL&, |
| const String& nonce, |
| const IntegrityMetadataSet& hashes, |
| ParserDisposition, |
| ResourceRequest::RedirectStatus, |
| SecurityViolationReportingPolicy) const; |
| bool AllowStyleFromSource(const KURL&, |
| const String& nonce, |
| ResourceRequest::RedirectStatus, |
| SecurityViolationReportingPolicy) const; |
| |
| bool AllowObjectFromSource(const KURL&, |
| ResourceRequest::RedirectStatus, |
| SecurityViolationReportingPolicy) const; |
| bool AllowFrameFromSource(const KURL&, |
| ResourceRequest::RedirectStatus, |
| SecurityViolationReportingPolicy) const; |
| bool AllowImageFromSource(const KURL&, |
| ResourceRequest::RedirectStatus, |
| SecurityViolationReportingPolicy) const; |
| bool AllowFontFromSource(const KURL&, |
| ResourceRequest::RedirectStatus, |
| SecurityViolationReportingPolicy) const; |
| bool AllowMediaFromSource(const KURL&, |
| ResourceRequest::RedirectStatus, |
| SecurityViolationReportingPolicy) const; |
| bool AllowManifestFromSource(const KURL&, |
| ResourceRequest::RedirectStatus, |
| SecurityViolationReportingPolicy) const; |
| bool AllowConnectToSource(const KURL&, |
| ResourceRequest::RedirectStatus, |
| SecurityViolationReportingPolicy) const; |
| bool AllowFormAction(const KURL&, |
| ResourceRequest::RedirectStatus, |
| SecurityViolationReportingPolicy) const; |
| bool AllowBaseURI(const KURL&, |
| ResourceRequest::RedirectStatus, |
| SecurityViolationReportingPolicy) const; |
| bool AllowWorkerFromSource(const KURL&, |
| ResourceRequest::RedirectStatus, |
| SecurityViolationReportingPolicy) const; |
| // |allowAncestors| does not need to know whether the resource was a |
| // result of a redirect. After a redirect, source paths are usually |
| // ignored to stop a page from learning the path to which the |
| // request was redirected, but this is not a concern for ancestors, |
| // because a child frame can't manipulate the URL of a cross-origin |
| // parent. |
| bool AllowAncestors(LocalFrame*, |
| const KURL&, |
| SecurityViolationReportingPolicy) const; |
| bool AllowScriptHash(const CSPHashValue&, |
| ContentSecurityPolicy::InlineType) const; |
| bool AllowStyleHash(const CSPHashValue&, |
| ContentSecurityPolicy::InlineType) const; |
| bool AllowDynamic() const; |
| bool AllowDynamicWorker() const; |
| |
| bool AllowRequestWithoutIntegrity(WebURLRequest::RequestContext, |
| const KURL&, |
| ResourceRequest::RedirectStatus, |
| SecurityViolationReportingPolicy) const; |
| |
| bool StrictMixedContentChecking() const { |
| return strict_mixed_content_checking_enforced_; |
| } |
| void ReportMixedContent(const KURL& mixed_url, |
| ResourceRequest::RedirectStatus) const; |
| |
| const String& EvalDisabledErrorMessage() const { |
| return eval_disabled_error_message_; |
| } |
| bool IsReportOnly() const { |
| return header_type_ == kContentSecurityPolicyHeaderTypeReport; |
| } |
| const Vector<String>& ReportEndpoints() const { return report_endpoints_; } |
| bool UseReportingApi() const { return use_reporting_api_; } |
| uint8_t RequireSRIForTokens() const { return require_sri_for_; } |
| bool IsFrameAncestorsEnforced() const { |
| return frame_ancestors_.Get() && !IsReportOnly(); |
| } |
| |
| // Used to copy plugin-types into a plugin document in a nested |
| // browsing context. |
| bool HasPluginTypes() const { return !!plugin_types_; } |
| const String& PluginTypesText() const; |
| |
| bool ShouldSendCSPHeader(Resource::Type) const; |
| |
| // The algorithm is described here: |
| // https://w3c.github.io/webappsec-csp/embedded/#subsume-policy |
| bool Subsumes(const CSPDirectiveListVector&); |
| |
| // Export a subset of the Policy. The primary goal of this method is to make |
| // the embedders aware of the directives that affect navigation, as the |
| // embedder is responsible for navigational enforcement. |
| // It currently contains the following ones: |
| // * default-src |
| // * child-src |
| // * frame-src |
| // * form-action |
| // * upgrade-insecure-requests |
| // The exported directives only contains sources that affect navigation. For |
| // instance it doesn't contains 'unsafe-inline' or 'unsafe-eval' |
| WebContentSecurityPolicy ExposeForNavigationalChecks() const; |
| |
| DECLARE_TRACE(); |
| |
| private: |
| FRIEND_TEST_ALL_PREFIXES(CSPDirectiveListTest, IsMatchingNoncePresent); |
| FRIEND_TEST_ALL_PREFIXES(CSPDirectiveListTest, GetSourceVector); |
| FRIEND_TEST_ALL_PREFIXES(CSPDirectiveListTest, OperativeDirectiveGivenType); |
| |
| enum RequireSRIForToken { kNone = 0, kScript = 1 << 0, kStyle = 1 << 1 }; |
| |
| CSPDirectiveList(ContentSecurityPolicy*, |
| ContentSecurityPolicyHeaderType, |
| ContentSecurityPolicyHeaderSource); |
| |
| bool ParseDirective(const UChar* begin, |
| const UChar* end, |
| String& name, |
| String& value); |
| void ParseRequireSRIFor(const String& name, const String& value); |
| void ParseReportURI(const String& name, const String& value); |
| void ParseReportTo(const String& name, const String& value); |
| void ParseAndAppendReportEndpoints(const String& value); |
| void ParsePluginTypes(const String& name, const String& value); |
| void AddDirective(const String& name, const String& value); |
| void ApplySandboxPolicy(const String& name, const String& sandbox_policy); |
| void EnforceStrictMixedContentChecking(const String& name, |
| const String& value); |
| void EnableInsecureRequestsUpgrade(const String& name, const String& value); |
| void TreatAsPublicAddress(const String& name, const String& value); |
| |
| template <class CSPDirectiveType> |
| void SetCSPDirective(const String& name, |
| const String& value, |
| Member<CSPDirectiveType>&); |
| |
| SourceListDirective* OperativeDirective(SourceListDirective*) const; |
| SourceListDirective* OperativeDirective(SourceListDirective*, |
| SourceListDirective* override) const; |
| void ReportViolation(const String& directive_text, |
| const ContentSecurityPolicy::DirectiveType&, |
| const String& console_message, |
| const KURL& blocked_url, |
| ResourceRequest::RedirectStatus) const; |
| void ReportViolationWithFrame(const String& directive_text, |
| const ContentSecurityPolicy::DirectiveType&, |
| const String& console_message, |
| const KURL& blocked_url, |
| LocalFrame*) const; |
| void ReportViolationWithLocation(const String& directive_text, |
| const ContentSecurityPolicy::DirectiveType&, |
| const String& console_message, |
| const KURL& blocked_url, |
| const String& context_url, |
| const WTF::OrdinalNumber& context_line, |
| Element*, |
| const String& source) const; |
| void ReportEvalViolation(const String& directive_text, |
| const ContentSecurityPolicy::DirectiveType&, |
| const String& message, |
| const KURL& blocked_url, |
| ScriptState*, |
| const ContentSecurityPolicy::ExceptionStatus, |
| const String& content) const; |
| |
| bool CheckEval(SourceListDirective*) const; |
| bool CheckDynamic(SourceListDirective*) const; |
| bool IsMatchingNoncePresent(SourceListDirective*, const String&) const; |
| bool AreAllMatchingHashesPresent(SourceListDirective*, |
| const IntegrityMetadataSet&) const; |
| bool CheckHash(SourceListDirective*, const CSPHashValue&) const; |
| bool CheckHashedAttributes(SourceListDirective*) const; |
| bool CheckSource(SourceListDirective*, |
| const KURL&, |
| ResourceRequest::RedirectStatus) const; |
| bool CheckMediaType(MediaListDirective*, |
| const String& type, |
| const String& type_attribute) const; |
| bool CheckAncestors(SourceListDirective*, LocalFrame*) const; |
| bool CheckRequestWithoutIntegrity(WebURLRequest::RequestContext) const; |
| |
| void SetEvalDisabledErrorMessage(const String& error_message) { |
| eval_disabled_error_message_ = error_message; |
| } |
| |
| bool CheckEvalAndReportViolation(SourceListDirective*, |
| const String& console_message, |
| ScriptState*, |
| ContentSecurityPolicy::ExceptionStatus, |
| const String& script_content) const; |
| bool CheckInlineAndReportViolation(SourceListDirective*, |
| const String& console_message, |
| Element*, |
| const String& source, |
| const String& context_url, |
| const WTF::OrdinalNumber& context_line, |
| bool is_script, |
| const String& hash_value) const; |
| |
| bool CheckSourceAndReportViolation( |
| SourceListDirective*, |
| const KURL&, |
| const ContentSecurityPolicy::DirectiveType&, |
| ResourceRequest::RedirectStatus) const; |
| bool CheckMediaTypeAndReportViolation(MediaListDirective*, |
| const String& type, |
| const String& type_attribute, |
| const String& console_message) const; |
| bool CheckAncestorsAndReportViolation(SourceListDirective*, |
| LocalFrame*, |
| const KURL&) const; |
| bool CheckRequestWithoutIntegrityAndReportViolation( |
| WebURLRequest::RequestContext, |
| const KURL&, |
| ResourceRequest::RedirectStatus) const; |
| |
| bool DenyIfEnforcingPolicy() const { return IsReportOnly(); } |
| |
| // This function returns a SourceListDirective of a given type |
| // or if it is not defined, the default SourceListDirective for that type. |
| SourceListDirective* OperativeDirective( |
| const ContentSecurityPolicy::DirectiveType&) const; |
| |
| // This function aggregates from a vector of policies all operative |
| // SourceListDirectives of a given type into a vector. |
| static SourceListDirectiveVector GetSourceVector( |
| const ContentSecurityPolicy::DirectiveType&, |
| const CSPDirectiveListVector& policies); |
| |
| Member<ContentSecurityPolicy> policy_; |
| |
| String header_; |
| ContentSecurityPolicyHeaderType header_type_; |
| ContentSecurityPolicyHeaderSource header_source_; |
| |
| bool has_sandbox_policy_; |
| |
| bool strict_mixed_content_checking_enforced_; |
| |
| bool upgrade_insecure_requests_; |
| bool treat_as_public_address_; |
| |
| Member<MediaListDirective> plugin_types_; |
| Member<SourceListDirective> base_uri_; |
| Member<SourceListDirective> child_src_; |
| Member<SourceListDirective> connect_src_; |
| Member<SourceListDirective> default_src_; |
| Member<SourceListDirective> font_src_; |
| Member<SourceListDirective> form_action_; |
| Member<SourceListDirective> frame_ancestors_; |
| Member<SourceListDirective> frame_src_; |
| Member<SourceListDirective> img_src_; |
| Member<SourceListDirective> media_src_; |
| Member<SourceListDirective> manifest_src_; |
| Member<SourceListDirective> object_src_; |
| Member<SourceListDirective> script_src_; |
| Member<SourceListDirective> style_src_; |
| Member<SourceListDirective> worker_src_; |
| |
| uint8_t require_sri_for_; |
| |
| Vector<String> report_endpoints_; |
| bool use_reporting_api_; |
| |
| String eval_disabled_error_message_; |
| }; |
| |
| } // namespace blink |
| |
| #endif |
