75051a962b
Converts folder scan requests, from any content analysis interception point,
into file scan requests for each file in the folder (recursively). Folder CA
approval is given iff all files were approved. Otherwise the folder analysis
result is denial, issued as soon as that is known.
This still has the issue that only the first file will be given busy and verdict
dialogs. The entire CA check may silently block because of this. See bug
1915351.
Differential Revision: https://phabricator.services.mozilla.com/D224344
164 lines
3.9 KiB
C++
164 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_GetFilesHelper_h
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#define mozilla_dom_GetFilesHelper_h
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#include "mozilla/Mutex.h"
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#include "mozilla/RefPtr.h"
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#include "nsCycleCollectionTraversalCallback.h"
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#include "nsTArray.h"
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#include "nsThreadUtils.h"
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class nsIGlobalObject;
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namespace mozilla {
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class ErrorResult;
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namespace dom {
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class BlobImpl;
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class ContentParent;
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class File;
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class GetFilesHelperParent;
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class OwningFileOrDirectory;
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class Promise;
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class GetFilesCallback {
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public:
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NS_INLINE_DECL_REFCOUNTING(GetFilesCallback);
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// This is called once per directory scan and is passed an array of all
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// of the files found.
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virtual void Callback(nsresult aStatus,
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const FallibleTArray<RefPtr<BlobImpl>>& aBlobImpls) = 0;
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protected:
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virtual ~GetFilesCallback() = default;
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};
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class GetFilesHelperBase {
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protected:
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explicit GetFilesHelperBase(bool aRecursiveFlag)
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: mRecursiveFlag(aRecursiveFlag) {}
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virtual ~GetFilesHelperBase() = default;
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virtual bool IsCanceled() { return false; }
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nsresult ExploreDirectory(const nsAString& aDOMPath, nsIFile* aFile);
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bool mRecursiveFlag;
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// We populate this array in the I/O thread with the BlobImpl.
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FallibleTArray<RefPtr<BlobImpl>> mTargetBlobImplArray;
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};
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// Retrieving the list of files can be very time/IO consuming. We use this
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// helper class to do it just once.
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class GetFilesHelper : public Runnable, public GetFilesHelperBase {
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friend class GetFilesHelperParent;
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public:
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static already_AddRefed<GetFilesHelper> Create(
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const nsTArray<OwningFileOrDirectory>& aFilesOrDirectory,
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bool aRecursiveFlag, ErrorResult& aRv);
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void AddPromise(Promise* aPromise);
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void AddCallback(GetFilesCallback* aCallback);
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// CC methods
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void Unlink();
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void Traverse(nsCycleCollectionTraversalCallback& cb);
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protected:
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explicit GetFilesHelper(bool aRecursiveFlag);
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virtual ~GetFilesHelper();
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void SetDirectoryPath(const nsAString& aDirectoryPath) {
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mDirectoryPath = aDirectoryPath;
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}
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virtual bool IsCanceled() override {
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MutexAutoLock lock(mMutex);
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return mCanceled;
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}
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virtual void Work(ErrorResult& aRv);
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virtual void Cancel() {};
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NS_IMETHOD
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Run() override;
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void RunIO();
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void OperationCompleted();
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void ResolveOrRejectPromise(Promise* aPromise);
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void RunCallback(GetFilesCallback* aCallback);
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bool mListingCompleted;
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nsString mDirectoryPath;
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// Error code to propagate.
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nsresult mErrorResult;
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nsTArray<RefPtr<Promise>> mPromises;
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nsTArray<RefPtr<GetFilesCallback>> mCallbacks;
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Mutex mMutex MOZ_UNANNOTATED;
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// This variable is protected by mutex.
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bool mCanceled;
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};
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class GetFilesHelperChild final : public GetFilesHelper {
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public:
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explicit GetFilesHelperChild(bool aRecursiveFlag)
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: GetFilesHelper(aRecursiveFlag), mPendingOperation(false) {}
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virtual void Work(ErrorResult& aRv) override;
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virtual void Cancel() override;
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bool AppendBlobImpl(BlobImpl* aBlobImpl);
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void Finished(nsresult aResult);
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private:
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nsID mUUID;
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bool mPendingOperation;
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};
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class GetFilesHelperParentCallback;
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class GetFilesHelperParent final : public GetFilesHelper {
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friend class GetFilesHelperParentCallback;
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public:
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static already_AddRefed<GetFilesHelperParent> Create(
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const nsID& aUUID, const nsAString& aDirectoryPath, bool aRecursiveFlag,
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ContentParent* aContentParent, ErrorResult& aRv);
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private:
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GetFilesHelperParent(const nsID& aUUID, ContentParent* aContentParent,
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bool aRecursiveFlag);
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~GetFilesHelperParent();
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RefPtr<ContentParent> mContentParent;
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nsID mUUID;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_GetFilesHelper_h
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