| /* |
| * Copyright (C) 2013-2016 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #if ENABLE(CONTENT_FILTERING) |
| |
| #include "CachedResourceHandle.h" |
| #include "PlatformContentFilter.h" |
| #include "ResourceError.h" |
| #include <functional> |
| #include <wtf/Forward.h> |
| #include <wtf/UniqueRef.h> |
| |
| namespace WebCore { |
| |
| class CachedRawResource; |
| class ContentFilterClient; |
| class DocumentLoader; |
| class ResourceRequest; |
| class ResourceResponse; |
| class SubstituteData; |
| |
| class ContentFilter { |
| WTF_MAKE_FAST_ALLOCATED; |
| WTF_MAKE_NONCOPYABLE(ContentFilter); |
| |
| public: |
| template <typename T> static void addType() { types().append(type<T>()); } |
| |
| WEBCORE_EXPORT static std::unique_ptr<ContentFilter> create(ContentFilterClient&); |
| WEBCORE_EXPORT ~ContentFilter(); |
| |
| static constexpr ASCIILiteral urlScheme() { return "x-apple-content-filter"_s; } |
| |
| #if ENABLE(CONTENT_FILTERING_IN_NETWORKING_PROCESS) |
| WEBCORE_EXPORT void startFilteringMainResource(const URL&); |
| #endif |
| void startFilteringMainResource(CachedRawResource&); |
| WEBCORE_EXPORT void stopFilteringMainResource(); |
| |
| WEBCORE_EXPORT bool continueAfterWillSendRequest(ResourceRequest&, const ResourceResponse&); |
| WEBCORE_EXPORT bool continueAfterResponseReceived(const ResourceResponse&); |
| #if ENABLE(CONTENT_FILTERING_IN_NETWORKING_PROCESS) |
| WEBCORE_EXPORT bool continueAfterDataReceived(const SharedBuffer&, size_t encodedDataLength); |
| WEBCORE_EXPORT bool continueAfterNotifyFinished(const URL& resourceURL); |
| #endif |
| bool continueAfterDataReceived(const SharedBuffer&); |
| bool continueAfterNotifyFinished(CachedResource&); |
| |
| static bool continueAfterSubstituteDataRequest(const DocumentLoader& activeLoader, const SubstituteData&); |
| bool willHandleProvisionalLoadFailure(const ResourceError&) const; |
| WEBCORE_EXPORT void handleProvisionalLoadFailure(const ResourceError&); |
| |
| const ResourceError& blockedError() const { return m_blockedError; } |
| void setBlockedError(const ResourceError& error) { m_blockedError = error; } |
| bool isAllowed() const { return m_state == State::Allowed; } |
| bool responseReceived() const { return m_responseReceived; } |
| |
| private: |
| using State = PlatformContentFilter::State; |
| |
| struct Type { |
| Function<UniqueRef<PlatformContentFilter>()> create; |
| }; |
| template <typename T> static Type type(); |
| WEBCORE_EXPORT static Vector<Type>& types(); |
| |
| using Container = Vector<UniqueRef<PlatformContentFilter>>; |
| friend std::unique_ptr<ContentFilter> std::make_unique<ContentFilter>(Container&&, ContentFilterClient&); |
| ContentFilter(Container&&, ContentFilterClient&); |
| |
| template <typename Function> void forEachContentFilterUntilBlocked(Function&&); |
| void didDecide(State); |
| void deliverResourceData(const SharedBuffer&, size_t encodedDataLength = 0); |
| #if ENABLE(CONTENT_FILTERING_IN_NETWORKING_PROCESS) |
| void deliverStoredResourceData(); |
| #endif |
| |
| URL url(); |
| |
| Container m_contentFilters; |
| ContentFilterClient& m_client; |
| #if ENABLE(CONTENT_FILTERING_IN_NETWORKING_PROCESS) |
| URL m_mainResourceURL; |
| struct ResourceDataItem { |
| RefPtr<const SharedBuffer> buffer; |
| size_t encodedDataLength; |
| }; |
| |
| Vector<ResourceDataItem> m_buffers; |
| #endif |
| CachedResourceHandle<CachedRawResource> m_mainResource; |
| const PlatformContentFilter* m_blockingContentFilter { nullptr }; |
| State m_state { State::Stopped }; |
| ResourceError m_blockedError; |
| bool m_isLoadingBlockedPage { false }; |
| bool m_responseReceived { false }; |
| }; |
| |
| template <typename T> |
| ContentFilter::Type ContentFilter::type() |
| { |
| static_assert(std::is_base_of<PlatformContentFilter, T>::value, "Type must be a PlatformContentFilter."); |
| return { T::create }; |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(CONTENT_FILTERING) |