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123 lines
3.1 KiB
C++
123 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* vim: se cin sw=2 ts=2 et : */
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#ifndef nsDownloadScanner_h_
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#define nsDownloadScanner_h_
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#ifdef WIN32_LEAN_AND_MEAN
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#undef WIN32_LEAN_AND_MEAN
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#endif
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#define INITGUID
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#include <windows.h>
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#define AVVENDOR
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#include <objidl.h>
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#include <msoav.h>
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#include <shlobj.h>
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#include "nsAutoPtr.h"
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#include "nsThreadUtils.h"
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#include "nsTArray.h"
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#include "nsIObserver.h"
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#include "nsIURI.h"
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enum AVScanState
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{
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AVSCAN_NOTSTARTED = 0,
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AVSCAN_SCANNING,
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AVSCAN_GOOD,
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AVSCAN_BAD,
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AVSCAN_UGLY,
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AVSCAN_FAILED,
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AVSCAN_TIMEDOUT
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};
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enum AVCheckPolicyState
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{
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AVPOLICY_DOWNLOAD,
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AVPOLICY_PROMPT,
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AVPOLICY_BLOCKED
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};
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// See nsDownloadScanner.cpp for declaration and definition
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class nsDownloadScannerWatchdog;
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class nsDownload;
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class nsDownloadScanner
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{
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public:
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nsDownloadScanner();
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~nsDownloadScanner();
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nsresult Init();
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nsresult ScanDownload(nsDownload *download);
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AVCheckPolicyState CheckPolicy(nsIURI *aSource, nsIURI *aTarget);
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private:
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bool mAESExists;
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nsTArray<CLSID> mScanCLSID;
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bool IsAESAvailable();
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bool EnumerateOAVProviders();
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nsAutoPtr<nsDownloadScannerWatchdog> mWatchdog;
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static unsigned int __stdcall ScannerThreadFunction(void *p);
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class Scan : public nsRunnable
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{
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public:
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Scan(nsDownloadScanner *scanner, nsDownload *download);
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~Scan();
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nsresult Start();
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// Returns the time that Start was called
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PRTime GetStartTime() const { return mStartTime; }
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// Returns a copy of the thread handle that can be waited on, but not
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// terminated
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// The caller is responsible for closing the handle
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// If the thread has terminated, then this will return the pseudo-handle
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// INVALID_HANDLE_VALUE
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HANDLE GetWaitableThreadHandle() const;
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// Called on a secondary thread to notify the scan that it has timed out
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// this is used only by the watchdog thread
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bool NotifyTimeout();
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private:
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nsDownloadScanner *mDLScanner;
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PRTime mStartTime;
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HANDLE mThread;
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nsRefPtr<nsDownload> mDownload;
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// Guards mStatus
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CRITICAL_SECTION mStateSync;
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AVScanState mStatus;
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nsString mPath;
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nsString mName;
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nsString mOrigin;
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// Also true if it is an ftp download
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bool mIsHttpDownload;
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bool mSkipSource;
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/* @summary Sets the Scan's state to newState if the current state is
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expectedState
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* @param newState The new state of the scan
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* @param expectedState The state that the caller expects the scan to be in
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* @return If the old state matched expectedState
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*/
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bool CheckAndSetState(AVScanState newState, AVScanState expectedState);
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NS_IMETHOD Run();
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void DoScan();
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bool DoScanAES();
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bool DoScanOAV();
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friend unsigned int __stdcall nsDownloadScanner::ScannerThreadFunction(void *);
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};
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// Used to give access to Scan
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friend class nsDownloadScannerWatchdog;
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};
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#endif
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