gecko-dev/uriloader/exthandler/os2/nsOSHelperAppService.h

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/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is
* Netscape Communications, Inc.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Scott MacGregor <mscott@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsOSHelperAppService_h__
#define nsOSHelperAppService_h__
// The OS helper app service is a subclass of nsExternalHelperAppService and is implemented on each
// platform. It contains platform specific code for finding helper applications for a given mime type
// in addition to launching those applications.
#include "nsExternalHelperAppService.h"
#include "nsCExternalHandlerService.h"
#include "nsCOMPtr.h"
class nsHashtable;
class nsILineInputStream;
class nsMIMEInfoOS2;
class nsOSHelperAppService : public nsExternalHelperAppService
{
public:
nsOSHelperAppService();
virtual ~nsOSHelperAppService();
// method overrides for mime.types and mime.info look up steps
already_AddRefed<nsIMIMEInfo> GetMIMEInfoFromOS(const nsACString& aMimeType,
const nsACString& aFileExt,
PRBool *aFound);
already_AddRefed<nsIHandlerInfo> GetProtocolInfoFromOS(const nsACString &aScheme,
PRBool *found);
// override nsIExternalProtocolService methods
NS_IMETHODIMP GetApplicationDescription(const nsACString& aScheme, nsAString& _retval);
nsresult OSProtocolHandlerExists(const char * aProtocolScheme, PRBool * aHandlerExists);
protected:
already_AddRefed<nsMIMEInfoOS2> GetFromType(const nsCString& aMimeType);
already_AddRefed<nsMIMEInfoOS2> GetFromExtension(const nsCString& aFileExt);
private:
nsresult GetApplicationAndParametersFromINI(const nsACString& aProtocol,
char * app, unsigned long appLength,
char * param, unsigned long paramLength);
// Helper methods which have to access static members
static nsresult UnescapeCommand(const nsAString& aEscapedCommand,
const nsAString& aMajorType,
const nsAString& aMinorType,
nsHashtable& aTypeOptions,
nsACString& aUnEscapedCommand);
static nsresult GetFileLocation(const char* aPrefName,
const char* aEnvVarName,
PRUnichar** aFileLocation);
static nsresult LookUpTypeAndDescription(const nsAString& aFileExtension,
nsAString& aMajorType,
nsAString& aMinorType,
nsAString& aDescription);
static nsresult CreateInputStream(const nsAString& aFilename,
nsIFileInputStream ** aFileInputStream,
nsILineInputStream ** aLineInputStream,
nsACString& aBuffer,
PRBool * aNetscapeFormat,
PRBool * aMore);
static nsresult GetTypeAndDescriptionFromMimetypesFile(const nsAString& aFilename,
const nsAString& aFileExtension,
nsAString& aMajorType,
nsAString& aMinorType,
nsAString& aDescription);
static nsresult LookUpExtensionsAndDescription(const nsAString& aMajorType,
const nsAString& aMinorType,
nsAString& aFileExtensions,
nsAString& aDescription);
static nsresult GetExtensionsAndDescriptionFromMimetypesFile(const nsAString& aFilename,
const nsAString& aMajorType,
const nsAString& aMinorType,
nsAString& aFileExtensions,
nsAString& aDescription);
static nsresult ParseNetscapeMIMETypesEntry(const nsAString& aEntry,
nsAString::const_iterator& aMajorTypeStart,
nsAString::const_iterator& aMajorTypeEnd,
nsAString::const_iterator& aMinorTypeStart,
nsAString::const_iterator& aMinorTypeEnd,
nsAString& aExtensions,
nsAString::const_iterator& aDescriptionStart,
nsAString::const_iterator& aDescriptionEnd);
static nsresult ParseNormalMIMETypesEntry(const nsAString& aEntry,
nsAString::const_iterator& aMajorTypeStart,
nsAString::const_iterator& aMajorTypeEnd,
nsAString::const_iterator& aMinorTypeStart,
nsAString::const_iterator& aMinorTypeEnd,
nsAString& aExtensions,
nsAString::const_iterator& aDescriptionStart,
nsAString::const_iterator& aDescriptionEnd);
static nsresult LookUpHandlerAndDescription(const nsAString& aMajorType,
const nsAString& aMinorType,
nsHashtable& aTypeOptions,
nsAString& aHandler,
nsAString& aDescription,
nsAString& aMozillaFlags);
static nsresult GetHandlerAndDescriptionFromMailcapFile(const nsAString& aFilename,
const nsAString& aMajorType,
const nsAString& aMinorType,
nsHashtable& aTypeOptions,
nsAString& aHandler,
nsAString& aDescription,
nsAString& aMozillaFlags);
};
#endif // nsOSHelperAppService_h__