The Tor Browser: uriloader/exthandler/win/nsOSHelperAppService.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-

     2  * This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #ifndef nsOSHelperAppService_h__

     7 #define nsOSHelperAppService_h__

     9 // The OS helper app service is a subclass of nsExternalHelperAppService and is implemented on each

    10 // platform. It contains platform specific code for finding helper applications for a given mime type

    11 // in addition to launching those applications.

    13 #include "nsExternalHelperAppService.h"

    14 #include "nsCExternalHandlerService.h"

    15 #include "nsMIMEInfoImpl.h"

    16 #include "nsCOMPtr.h"

    17 #include <windows.h>

    19 #ifdef _WIN32_WINNT

    20 #undef _WIN32_WINNT

    21 #endif

    22 #define _WIN32_WINNT 0x0600

    23 #include <shlobj.h>

    25 class nsMIMEInfoWin;

    27 class nsOSHelperAppService : public nsExternalHelperAppService

    28 {

    29 public:

    30   nsOSHelperAppService();

    31   virtual ~nsOSHelperAppService();

    33   // override nsIExternalProtocolService methods

    34   nsresult OSProtocolHandlerExists(const char * aProtocolScheme, bool * aHandlerExists);

    35   nsresult LoadUriInternal(nsIURI * aURL);

    36   NS_IMETHOD GetApplicationDescription(const nsACString& aScheme, nsAString& _retval);

    38   // method overrides for windows registry look up steps....

    39   already_AddRefed<nsIMIMEInfo> GetMIMEInfoFromOS(const nsACString& aMIMEType, const nsACString& aFileExt, bool *aFound);

    40   NS_IMETHOD GetProtocolHandlerInfoFromOS(const nsACString &aScheme,

    41                                           bool *found,

    42                                           nsIHandlerInfo **_retval);

    44   /** Get the string value of a registry value and store it in result.

    45    * @return true on success, false on failure

    46    */

    47   static bool GetValueString(HKEY hKey, const char16_t* pValueName, nsAString& result);

    49   // Removes registry command handler parameters, quotes, and expands environment strings.

    50   static bool CleanupCmdHandlerPath(nsAString& aCommandHandler);

    52 protected:

    53   nsresult GetDefaultAppInfo(const nsAString& aTypeName, nsAString& aDefaultDescription, nsIFile** aDefaultApplication);

    54   // Lookup a mime info by extension, using an optional type hint

    55   already_AddRefed<nsMIMEInfoWin> GetByExtension(const nsAFlatString& aFileExt, const char *aTypeHint = nullptr);

    56   nsresult FindOSMimeInfoForType(const char * aMimeContentType, nsIURI * aURI, char ** aFileExtension, nsIMIMEInfo ** aMIMEInfo);

    58   static nsresult GetMIMEInfoFromRegistry(const nsAFlatString& fileType, nsIMIMEInfo *pInfo);

    59   /// Looks up the type for the extension aExt and compares it to aType

    60   static bool typeFromExtEquals(const char16_t* aExt, const char *aType);

    62 private:

    63   IApplicationAssociationRegistration* mAppAssoc;

    64 };

    66 #endif // nsOSHelperAppService_h__

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