зеркало из https://github.com/mozilla/gecko-dev.git
317 строки
11 KiB
C++
317 строки
11 KiB
C++
/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Mozilla browser.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications, Inc. Portions created by Netscape are
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* Copyright (C) 1999, Mozilla. All Rights Reserved.
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*
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* Contributor(s):
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* Scott MacGregor <mscott@netscape.com>
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*/
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#include "nsOSHelperAppService.h"
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#include "nsISupports.h"
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#include "nsString.h"
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#include "nsReadableUtils.h"
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#include "nsXPIDLString.h"
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#include "nsIURL.h"
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#include "nsIMIMEInfo.h"
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#include "nsILocalFile.h"
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#include "nsProcess.h"
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#include <os2.h>
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// helper methods: forward declarations...
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nsresult GetExtensionFrom4xRegistryInfo(const char * aMimeType, nsCString& aFileExtension);
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nsOSHelperAppService::nsOSHelperAppService() : nsExternalHelperAppService()
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{}
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nsOSHelperAppService::~nsOSHelperAppService()
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{}
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nsresult nsOSHelperAppService::FindOSMimeInfoForType(const char * aMimeContentType, nsIURI * aURI, char ** aFileExtension, nsIMIMEInfo ** aMIMEInfo)
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{
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nsresult rv = NS_OK;
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nsCAutoString fileExtension;
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nsCOMPtr<nsIMIMEInfo> mimeInfo;
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// (1) ask the base class if they have a mime info object for this content type...
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rv = GetFromMIMEType(aMimeContentType, getter_AddRefs(mimeInfo));
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if (mimeInfo)
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{
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nsXPIDLCString mimefileExt;
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mimeInfo->FirstExtension(getter_Copies(mimefileExt));
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fileExtension = ".";
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fileExtension.Append(mimefileExt);
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}
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// we don't have a mozilla override extension for this content type....
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// try looking in the netscape windows registry to see if we got lucky
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// and have pre-populated the registry with mappings
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if (fileExtension.IsEmpty())
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rv = GetExtensionFrom4xRegistryInfo(aMimeContentType, fileExtension);
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if (fileExtension.IsEmpty())
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{
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// if we couldn't find one, don't give up yet! Try and see if there is an extension in the
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// url itself...
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nsCOMPtr<nsIURL> url = do_QueryInterface(aURI);
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if (url)
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{
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nsXPIDLCString extenion;
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url->GetFileExtension(getter_Copies(extenion));
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fileExtension = ".";
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fileExtension.Append(extenion);
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}
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} // if we couldn't get extension information from the registry...
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// look up the content type and get a platform specific handle to the app we want to use for this
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// download...create a nsExternalAppHandler, bind the application token to it (as a nsIFile??) and return this
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// as the stream listener to use...
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if (!fileExtension.IsEmpty())
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{
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GetFromExtension(fileExtension.get(), aMIMEInfo);
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// this is the ONLY code path which leads to success where we should set our return variables...
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*aFileExtension = ToNewCString(fileExtension);
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} // if we got an entry out of the registry...
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return rv;
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}
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NS_IMETHODIMP nsOSHelperAppService::LaunchAppWithTempFile(nsIMIMEInfo * aMIMEInfo, nsIFile * aTempFile)
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{
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nsresult rv = NS_OK;
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if (aMIMEInfo)
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{
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nsCOMPtr<nsIFile> application;
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nsXPIDLCString path;
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aTempFile->GetPath(getter_Copies(path));
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nsMIMEInfoHandleAction action = nsIMIMEInfo::useSystemDefault;
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aMIMEInfo->GetPreferredAction(&action);
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aMIMEInfo->GetPreferredApplicationHandler(getter_AddRefs(application));
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if (application && action == nsIMIMEInfo::useHelperApp)
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{
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// if we were given an application to use then use it....otherwise
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// make the registry call to launch the app
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const char * strPath = (const char *) path;
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nsCOMPtr<nsIProcess> process = do_CreateInstance(NS_PROCESS_CONTRACTID);
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nsresult rv;
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if (NS_FAILED(rv = process->Init(application)))
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return rv;
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PRUint32 pid;
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if (NS_FAILED(rv = process->Run(PR_FALSE, &strPath, 1, &pid)))
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return rv;
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}
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else // use the system default
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{
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HOBJECT hobject = WinQueryObject( path );
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if (WinSetObjectData( hobject, "OPEN=DEFAULT" ))
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rv = NS_OK;
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else
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rv = NS_ERROR_FAILURE;
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}
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}
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return rv;
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}
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// We have a serious problem!! I have this content type and the windows registry only gives me
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// helper apps based on extension. Right now, we really don't have a good place to go for
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// trying to figure out the extension for a particular mime type....One short term hack is to look
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// this information in 4.x (it's stored in the windows regsitry).
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nsresult GetExtensionFrom4xRegistryInfo(const char * aMimeType, nsCString& aFileExtension)
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{
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static const char command[] = "Software\\Netscape\\Netscape Navigator\\Suffixes";
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nsresult rv = NS_OK;
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#ifndef XP_OS2 /* GET EXTENSION FROM NSCP.INI!!! */
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HKEY hKey;
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LONG err = ::RegOpenKeyEx( HKEY_CURRENT_USER, command, 0, KEY_QUERY_VALUE, &hKey);
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if (err == ERROR_SUCCESS)
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{
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LPBYTE pBytes = GetValueBytes( hKey, aMimeType);
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if (pBytes) // only try to get the extension if we have a value!
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{
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aFileExtension = ".";
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aFileExtension.Append( (char *) pBytes);
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// this may be a comma separate list of extensions...just take the first one
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// for now...
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PRInt32 pos = aFileExtension.FindChar(',', PR_TRUE);
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if (pos > 0) // we have a comma separated list of languages...
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aFileExtension.Truncate(pos); // truncate everything after the first comma (including the comma)
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}
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delete [] pBytes;
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// close the key
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::RegCloseKey(hKey);
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}
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else
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rv = NS_ERROR_FAILURE; // no 4.x extension mapping found!
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#endif
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return rv;
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}
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NS_IMETHODIMP nsOSHelperAppService::ExternalProtocolHandlerExists(const char * aProtocolScheme, PRBool * aHandlerExists)
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{
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// look up the protocol scheme in the windows registry....if we find a match then we have a handler for it...
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*aHandlerExists = PR_FALSE;
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#ifndef XP_OS2 /* Where should we store protocol on OS/2? */
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if (aProtocolScheme && *aProtocolScheme)
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{
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HKEY hKey;
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LONG err = ::RegOpenKeyEx( HKEY_CLASSES_ROOT, aProtocolScheme, 0, KEY_QUERY_VALUE, &hKey);
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if (err == ERROR_SUCCESS)
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{
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*aHandlerExists = PR_TRUE;
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// close the key
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::RegCloseKey(hKey);
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}
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}
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#endif
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return NS_OK;
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}
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// this implementation was pretty much copied verbatime from Tony Robinson's code in nsExternalProtocolWin.cpp
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NS_IMETHODIMP nsOSHelperAppService::LoadUrl(nsIURI * aURL)
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{
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nsresult rv = NS_OK;
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// 1. Find the default app for this protocol
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// 2. Set up the command line
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// 3. Launch the app.
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// For now, we'll just cheat essentially, check for the command line
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// then just call ShellExecute()!
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if (aURL)
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{
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// extract the url spec from the url
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nsXPIDLCString urlSpec;
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aURL->GetSpec(getter_Copies(urlSpec));
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HOBJECT hobject = WinQueryObject( urlSpec );
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if (WinSetObjectData( hobject, "OPEN=DEFAULT" ))
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rv = NS_OK;
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else
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rv = NS_ERROR_FAILURE;
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}
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return rv;
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}
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nsresult nsOSHelperAppService::GetFileTokenForPath(const PRUnichar * platformAppPath, nsIFile ** aFile)
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{
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nsCOMPtr<nsILocalFile> localFile (do_CreateInstance(NS_LOCAL_FILE_CONTRACTID));
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nsresult rv = NS_OK;
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if (localFile)
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{
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if (localFile)
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localFile->InitWithUnicodePath(platformAppPath);
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*aFile = localFile;
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NS_IF_ADDREF(*aFile);
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}
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else
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rv = NS_ERROR_FAILURE;
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return rv;
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////
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// nsIMIMEService method over-rides used to gather information from the windows registry for
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// various mime types.
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////////////////////////////////////////////////////////////////////////////////////////////////
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NS_IMETHODIMP nsOSHelperAppService::GetFromExtension(const char *aFileExt, nsIMIMEInfo **_retval)
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{
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// first, see if the base class already has an entry....
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nsresult rv = nsExternalHelperAppService::GetFromExtension(aFileExt, _retval);
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if (NS_SUCCEEDED(rv) && *_retval) return NS_OK; // okay we got an entry so we are done.
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if (!aFileExt || *aFileExt == '\0') return NS_ERROR_FAILURE;
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rv = NS_ERROR_FAILURE;
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// Hack to make some basic types work
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nsCOMPtr<nsIMIMEInfo> mimeInfo (do_CreateInstance(NS_MIMEINFO_CONTRACTID));
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nsAutoString description;
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if (!(stricmp(aFileExt, "swf" ))) {
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mimeInfo->SetMIMEType("application/x-shockwave-flash");
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description.AssignWithConversion((char *) "Flash");
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rv = NS_OK;
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} /* endif */
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if (!(stricmp(aFileExt, "pdf" ))) {
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mimeInfo->SetMIMEType("application/pdf");
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description.AssignWithConversion((char *) "Adobe Acrobat");
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rv = NS_OK;
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} /* endif */
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if (!(stricmp(aFileExt, "wav" ))) {
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mimeInfo->SetMIMEType("audio/x-wav");
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description.AssignWithConversion((char *) "WAV Audio");
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rv = NS_OK;
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} /* endif */
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if (!(stricmp(aFileExt, "mid" ))) {
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mimeInfo->SetMIMEType("audio/x-midi");
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description.AssignWithConversion((char *) "MIDI Sequence");
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rv = NS_OK;
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} /* endif */
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if (rv == NS_OK) {
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// if the file extension includes the '.' then we don't want to include that when we append
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// it to the mime info object.
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if (aFileExt && *aFileExt == '.' && (aFileExt+1))
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mimeInfo->AppendExtension(aFileExt+1);
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else
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mimeInfo->AppendExtension(aFileExt);
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mimeInfo->SetPreferredAction(nsIMIMEInfo::useSystemDefault);
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mimeInfo->SetApplicationDescription(description.get());
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// if we got here, then set our return variable and be sure to add this new mime Info object to the hash
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// table so we don't hit the registry the next time we look up this content type.
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*_retval = mimeInfo;
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NS_ADDREF(*_retval);
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AddMimeInfoToCache(mimeInfo);
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} /* endif */
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// we failed to find a mime type.
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if (!*_retval) rv = NS_ERROR_FAILURE;
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return rv;
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}
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NS_IMETHODIMP nsOSHelperAppService::GetFromMIMEType(const char *aMIMEType, nsIMIMEInfo ** _retval)
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{
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// first, see if the base class already has an entry....
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nsresult rv = nsExternalHelperAppService::GetFromMIMEType(aMIMEType, _retval);
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if (NS_SUCCEEDED(rv) && *_retval) return NS_OK; // okay we got an entry so we are done.
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// we currently don't know anything about this content type....
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// the windows registry is indexed by file extension not content type....so all we can do is try
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// to see if netscape has registered this extension...
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nsCAutoString fileExtension;
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GetExtensionFrom4xRegistryInfo(aMIMEType, fileExtension);
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if (!fileExtension.IsEmpty())
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return GetFromExtension(fileExtension.get(), _retval);
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else
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rv = NS_ERROR_FAILURE;
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return rv;
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}
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