зеркало из https://github.com/mozilla/pjs.git
711 строки
24 KiB
C++
711 строки
24 KiB
C++
/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim:set ts=2 sts=2 sw=2 et cin:
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* 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
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* Netscape Communications, Inc.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. 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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* Dan Mosedale <dmose@mozilla.org>
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* Jim Mathies <jmathies@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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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 "nsXPIDLString.h"
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#include "nsIURL.h"
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#include "nsIMIMEInfo.h"
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#include "nsMIMEInfoWin.h"
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#include "nsMimeTypes.h"
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#include "nsILocalFileWin.h"
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#include "nsIProcess.h"
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#include "plstr.h"
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#include "nsAutoPtr.h"
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#include "nsNativeCharsetUtils.h"
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#include "nsIWindowsRegKey.h"
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// shellapi.h is needed to build with WIN32_LEAN_AND_MEAN
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#include <shellapi.h>
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#define LOG(args) PR_LOG(mLog, PR_LOG_DEBUG, args)
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// helper methods: forward declarations...
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static nsresult GetExtensionFrom4xRegistryInfo(const nsACString& aMimeType,
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nsString& aFileExtension);
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static nsresult GetExtensionFromWindowsMimeDatabase(const nsACString& aMimeType,
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nsString& aFileExtension);
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nsOSHelperAppService::nsOSHelperAppService() :
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nsExternalHelperAppService()
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, mAppAssoc(nsnull)
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{
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CoInitialize(NULL);
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CoCreateInstance(CLSID_ApplicationAssociationRegistration, NULL, CLSCTX_INPROC,
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IID_IApplicationAssociationRegistration, (void**)&mAppAssoc);
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}
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nsOSHelperAppService::~nsOSHelperAppService()
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{
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if (mAppAssoc)
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mAppAssoc->Release();
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mAppAssoc = nsnull;
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CoUninitialize();
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}
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// The windows registry provides a mime database key which lists a set of mime types and corresponding "Extension" values.
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// we can use this to look up our mime type to see if there is a preferred extension for the mime type.
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static nsresult GetExtensionFromWindowsMimeDatabase(const nsACString& aMimeType,
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nsString& aFileExtension)
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{
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nsAutoString mimeDatabaseKey;
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mimeDatabaseKey.AssignLiteral("MIME\\Database\\Content Type\\");
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AppendASCIItoUTF16(aMimeType, mimeDatabaseKey);
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nsCOMPtr<nsIWindowsRegKey> regKey =
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do_CreateInstance("@mozilla.org/windows-registry-key;1");
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if (!regKey)
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return NS_ERROR_NOT_AVAILABLE;
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nsresult rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
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mimeDatabaseKey,
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nsIWindowsRegKey::ACCESS_QUERY_VALUE);
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if (NS_SUCCEEDED(rv))
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regKey->ReadStringValue(NS_LITERAL_STRING("Extension"), aFileExtension);
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return NS_OK;
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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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static nsresult GetExtensionFrom4xRegistryInfo(const nsACString& aMimeType,
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nsString& aFileExtension)
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{
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nsCOMPtr<nsIWindowsRegKey> regKey =
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do_CreateInstance("@mozilla.org/windows-registry-key;1");
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if (!regKey)
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return NS_ERROR_NOT_AVAILABLE;
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nsresult rv = regKey->
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Open(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER,
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NS_LITERAL_STRING("Software\\Netscape\\Netscape Navigator\\Suffixes"),
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nsIWindowsRegKey::ACCESS_QUERY_VALUE);
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if (NS_FAILED(rv))
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return NS_ERROR_NOT_AVAILABLE;
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rv = regKey->ReadStringValue(NS_ConvertASCIItoUTF16(aMimeType),
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aFileExtension);
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if (NS_FAILED(rv))
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return NS_OK;
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aFileExtension.Insert(PRUnichar('.'), 0);
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// this may be a comma separated list of extensions...just take the
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// first one for now...
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PRInt32 pos = aFileExtension.FindChar(PRUnichar(','));
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if (pos > 0) {
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// we have a comma separated list of types...
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// truncate everything after the first comma (including the comma)
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aFileExtension.Truncate(pos);
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}
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return NS_OK;
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}
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nsresult nsOSHelperAppService::OSProtocolHandlerExists(const char * aProtocolScheme, bool * 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 = false;
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if (aProtocolScheme && *aProtocolScheme)
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{
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// Vista: use new application association interface
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if (mAppAssoc) {
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PRUnichar * pResult = nsnull;
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NS_ConvertASCIItoUTF16 scheme(aProtocolScheme);
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// We are responsible for freeing returned strings.
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HRESULT hr = mAppAssoc->QueryCurrentDefault(scheme.get(),
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AT_URLPROTOCOL, AL_EFFECTIVE,
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&pResult);
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if (SUCCEEDED(hr)) {
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CoTaskMemFree(pResult);
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*aHandlerExists = true;
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}
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return NS_OK;
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}
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HKEY hKey;
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LONG err = ::RegOpenKeyExW(HKEY_CLASSES_ROOT,
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NS_ConvertASCIItoUTF16(aProtocolScheme).get(),
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0,
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KEY_QUERY_VALUE,
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&hKey);
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if (err == ERROR_SUCCESS)
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{
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err = ::RegQueryValueExW(hKey, L"URL Protocol", NULL, NULL, NULL, NULL);
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*aHandlerExists = (err == ERROR_SUCCESS);
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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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return NS_OK;
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}
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NS_IMETHODIMP nsOSHelperAppService::GetApplicationDescription(const nsACString& aScheme, nsAString& _retval)
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{
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nsCOMPtr<nsIWindowsRegKey> regKey =
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do_CreateInstance("@mozilla.org/windows-registry-key;1");
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if (!regKey)
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return NS_ERROR_NOT_AVAILABLE;
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NS_ConvertASCIItoUTF16 buf(aScheme);
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// Vista: use new application association interface
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if (mAppAssoc) {
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PRUnichar * pResult = nsnull;
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// We are responsible for freeing returned strings.
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HRESULT hr = mAppAssoc->QueryCurrentDefault(buf.get(),
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AT_URLPROTOCOL, AL_EFFECTIVE,
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&pResult);
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if (SUCCEEDED(hr)) {
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nsCOMPtr<nsIFile> app;
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nsAutoString appInfo(pResult);
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CoTaskMemFree(pResult);
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if (NS_SUCCEEDED(GetDefaultAppInfo(appInfo, _retval, getter_AddRefs(app))))
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return NS_OK;
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}
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return NS_ERROR_NOT_AVAILABLE;
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}
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nsCOMPtr<nsIFile> app;
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GetDefaultAppInfo(buf, _retval, getter_AddRefs(app));
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if (!_retval.Equals(buf))
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return NS_OK;
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// Fall back to full path
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buf.AppendLiteral("\\shell\\open\\command");
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nsresult rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
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buf,
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nsIWindowsRegKey::ACCESS_QUERY_VALUE);
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if (NS_FAILED(rv))
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return NS_ERROR_NOT_AVAILABLE;
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rv = regKey->ReadStringValue(EmptyString(), _retval);
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return NS_SUCCEEDED(rv) ? NS_OK : NS_ERROR_NOT_AVAILABLE;
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}
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// GetMIMEInfoFromRegistry: This function obtains the values of some of the nsIMIMEInfo
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// attributes for the mimeType/extension associated with the input registry key. The default
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// entry for that key is the name of a registry key under HKEY_CLASSES_ROOT. The default
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// value for *that* key is the descriptive name of the type. The EditFlags value is a binary
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// value; the low order bit of the third byte of which indicates that the user does not need
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// to be prompted.
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//
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// This function sets only the Description attribute of the input nsIMIMEInfo.
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/* static */
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nsresult nsOSHelperAppService::GetMIMEInfoFromRegistry(const nsAFlatString& fileType, nsIMIMEInfo *pInfo)
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{
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nsresult rv = NS_OK;
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NS_ENSURE_ARG(pInfo);
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nsCOMPtr<nsIWindowsRegKey> regKey =
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do_CreateInstance("@mozilla.org/windows-registry-key;1");
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if (!regKey)
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return NS_ERROR_NOT_AVAILABLE;
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rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
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fileType, nsIWindowsRegKey::ACCESS_QUERY_VALUE);
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if (NS_FAILED(rv))
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return NS_ERROR_FAILURE;
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// OK, the default value here is the description of the type.
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nsAutoString description;
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rv = regKey->ReadStringValue(EmptyString(), description);
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if (NS_SUCCEEDED(rv))
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pInfo->SetDescription(description);
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return NS_OK;
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////
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// method overrides used to gather information from the windows registry for
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// various mime types.
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////////////////////////////////////////////////////////////////////////////////////////////////
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/// Looks up the type for the extension aExt and compares it to aType
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/* static */ bool
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nsOSHelperAppService::typeFromExtEquals(const PRUnichar* aExt, const char *aType)
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{
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if (!aType)
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return false;
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nsAutoString fileExtToUse;
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if (aExt[0] != PRUnichar('.'))
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fileExtToUse = PRUnichar('.');
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fileExtToUse.Append(aExt);
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bool eq = false;
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nsCOMPtr<nsIWindowsRegKey> regKey =
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do_CreateInstance("@mozilla.org/windows-registry-key;1");
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if (!regKey)
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return eq;
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nsresult rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
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fileExtToUse,
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nsIWindowsRegKey::ACCESS_QUERY_VALUE);
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if (NS_FAILED(rv))
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return eq;
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nsAutoString type;
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rv = regKey->ReadStringValue(NS_LITERAL_STRING("Content Type"), type);
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if (NS_SUCCEEDED(rv))
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eq = type.EqualsASCII(aType);
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return eq;
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}
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// Strip a handler command string of its quotes and parameters.
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static void CleanupHandlerPath(nsString& aPath)
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{
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// Example command strings passed into this routine:
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// 1) C:\Program Files\Company\some.exe -foo -bar
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// 2) C:\Program Files\Company\some.dll
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// 3) C:\Windows\some.dll,-foo -bar
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// 4) C:\Windows\some.cpl,-foo -bar
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PRInt32 lastCommaPos = aPath.RFindChar(',');
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if (lastCommaPos != kNotFound)
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aPath.Truncate(lastCommaPos);
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aPath.AppendLiteral(" ");
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// case insensitive
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PRUint32 index = aPath.Find(".exe ", true);
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if (index == kNotFound)
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index = aPath.Find(".dll ", true);
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if (index == kNotFound)
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index = aPath.Find(".cpl ", true);
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if (index != kNotFound)
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aPath.Truncate(index + 4);
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aPath.Trim(" ", true, true);
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}
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// Strip the windows host process bootstrap executable rundll32.exe
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// from a handler's command string if it exists.
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static void StripRundll32(nsString& aCommandString)
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{
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// Example rundll formats:
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// C:\Windows\System32\rundll32.exe "path to dll"
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// rundll32.exe "path to dll"
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// C:\Windows\System32\rundll32.exe "path to dll", var var
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// rundll32.exe "path to dll", var var
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NS_NAMED_LITERAL_STRING(rundllSegment, "rundll32.exe ");
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NS_NAMED_LITERAL_STRING(rundllSegmentShort, "rundll32 ");
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// case insensitive
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PRInt32 strLen = rundllSegment.Length();
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PRInt32 index = aCommandString.Find(rundllSegment, true);
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if (index == kNotFound) {
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strLen = rundllSegmentShort.Length();
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index = aCommandString.Find(rundllSegmentShort, true);
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}
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if (index != kNotFound) {
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PRUint32 rundllSegmentLength = index + strLen;
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aCommandString.Cut(0, rundllSegmentLength);
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}
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}
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// Returns the fully qualified path to an application handler based on
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// a parameterized command string. Note this routine should not be used
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// to launch the associated application as it strips parameters and
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// rundll.exe from the string. Designed for retrieving display information
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// on a particular handler.
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/* static */ bool nsOSHelperAppService::CleanupCmdHandlerPath(nsAString& aCommandHandler)
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{
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nsAutoString handlerCommand(aCommandHandler);
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// Straight command path:
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//
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// %SystemRoot%\system32\NOTEPAD.EXE var
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// "C:\Program Files\iTunes\iTunes.exe" var var
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// C:\Program Files\iTunes\iTunes.exe var var
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//
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// Example rundll handlers:
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//
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// rundll32.exe "%ProgramFiles%\Win...ery\PhotoViewer.dll", var var
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// rundll32.exe "%ProgramFiles%\Windows Photo Gallery\PhotoViewer.dll"
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// C:\Windows\System32\rundll32.exe "path to dll", var var
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// %SystemRoot%\System32\rundll32.exe "%ProgramFiles%\Win...ery\Photo
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// Viewer.dll", var var
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// Expand environment variables so we have full path strings.
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PRUint32 bufLength = ::ExpandEnvironmentStringsW(handlerCommand.get(),
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L"", 0);
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if (bufLength == 0) // Error
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return false;
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nsAutoArrayPtr<PRUnichar> destination(new PRUnichar[bufLength]);
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if (!destination)
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return false;
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if (!::ExpandEnvironmentStringsW(handlerCommand.get(), destination,
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bufLength))
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return false;
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handlerCommand = destination;
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// Remove quotes around paths
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handlerCommand.StripChars("\"");
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// Strip windows host process bootstrap so we can get to the actual
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// handler.
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StripRundll32(handlerCommand);
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// Trim any command parameters so that we have a native path we can
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// initialize a local file with.
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CleanupHandlerPath(handlerCommand);
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aCommandHandler.Assign(handlerCommand);
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return true;
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}
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// The "real" name of a given helper app (as specified by the path to the
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// executable file held in various registry keys) is stored n the VERSIONINFO
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// block in the file's resources. We need to find the path to the executable
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// and then retrieve the "FileDescription" field value from the file.
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nsresult
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nsOSHelperAppService::GetDefaultAppInfo(const nsAString& aAppInfo,
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nsAString& aDefaultDescription,
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nsIFile** aDefaultApplication)
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{
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nsAutoString handlerCommand;
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// If all else fails, use the file type key name, which will be
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// something like "pngfile" for .pngs, "WMVFile" for .wmvs, etc.
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aDefaultDescription = aAppInfo;
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*aDefaultApplication = nsnull;
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if (aAppInfo.IsEmpty())
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return NS_ERROR_FAILURE;
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// aAppInfo may be a file, file path, program id, or
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// Applications reference -
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// c:\dir\app.exe
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// Applications\appfile.exe/dll (shell\open...)
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// ProgID.progid (shell\open...)
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nsAutoString handlerKeyName(aAppInfo);
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nsCOMPtr<nsIWindowsRegKey> chkKey =
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do_CreateInstance("@mozilla.org/windows-registry-key;1");
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if (!chkKey)
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return NS_ERROR_FAILURE;
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nsresult rv = chkKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
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handlerKeyName,
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nsIWindowsRegKey::ACCESS_QUERY_VALUE);
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if (NS_FAILED(rv)) {
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// It's a file system path to a handler
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handlerCommand.Assign(aAppInfo);
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}
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else {
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handlerKeyName.AppendLiteral("\\shell\\open\\command");
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nsCOMPtr<nsIWindowsRegKey> regKey =
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do_CreateInstance("@mozilla.org/windows-registry-key;1");
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if (!regKey)
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return NS_ERROR_FAILURE;
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nsresult rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
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handlerKeyName,
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nsIWindowsRegKey::ACCESS_QUERY_VALUE);
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if (NS_FAILED(rv))
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return NS_ERROR_FAILURE;
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// OK, the default value here is the description of the type.
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rv = regKey->ReadStringValue(EmptyString(), handlerCommand);
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if (NS_FAILED(rv))
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return NS_ERROR_FAILURE;
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}
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if (!CleanupCmdHandlerPath(handlerCommand))
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return NS_ERROR_FAILURE;
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// XXX FIXME: If this fails, the UI will display the full command
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// string.
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// There are some rare cases this can happen - ["url.dll" -foo]
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// for example won't resolve correctly to the system dir. The
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// subsequent launch of the helper app will work though.
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nsCOMPtr<nsILocalFile> lf;
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NS_NewLocalFile(handlerCommand, true, getter_AddRefs(lf));
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if (!lf)
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return NS_ERROR_FILE_NOT_FOUND;
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nsILocalFileWin* lfw = nsnull;
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CallQueryInterface(lf, &lfw);
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|
|
if (lfw) {
|
|
// The "FileDescription" field contains the actual name of the application.
|
|
lfw->GetVersionInfoField("FileDescription", aDefaultDescription);
|
|
// QI addref'ed for us.
|
|
*aDefaultApplication = lfw;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
already_AddRefed<nsMIMEInfoWin> nsOSHelperAppService::GetByExtension(const nsAFlatString& aFileExt, const char *aTypeHint)
|
|
{
|
|
if (aFileExt.IsEmpty())
|
|
return nsnull;
|
|
|
|
// windows registry assumes your file extension is going to include the '.'.
|
|
// so make sure it's there...
|
|
nsAutoString fileExtToUse;
|
|
if (aFileExt.First() != PRUnichar('.'))
|
|
fileExtToUse = PRUnichar('.');
|
|
|
|
fileExtToUse.Append(aFileExt);
|
|
|
|
// Try to get an entry from the windows registry.
|
|
nsCOMPtr<nsIWindowsRegKey> regKey =
|
|
do_CreateInstance("@mozilla.org/windows-registry-key;1");
|
|
if (!regKey)
|
|
return nsnull;
|
|
|
|
nsresult rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
|
|
fileExtToUse,
|
|
nsIWindowsRegKey::ACCESS_QUERY_VALUE);
|
|
if (NS_FAILED(rv))
|
|
return nsnull;
|
|
|
|
nsCAutoString typeToUse;
|
|
if (aTypeHint && *aTypeHint) {
|
|
typeToUse.Assign(aTypeHint);
|
|
}
|
|
else {
|
|
nsAutoString temp;
|
|
if (NS_FAILED(regKey->ReadStringValue(NS_LITERAL_STRING("Content Type"),
|
|
temp)) || temp.IsEmpty()) {
|
|
return nsnull;
|
|
}
|
|
// Content-Type is always in ASCII
|
|
LossyAppendUTF16toASCII(temp, typeToUse);
|
|
}
|
|
|
|
nsMIMEInfoWin* mimeInfo = new nsMIMEInfoWin(typeToUse);
|
|
if (!mimeInfo)
|
|
return nsnull; // out of memory
|
|
|
|
NS_ADDREF(mimeInfo);
|
|
|
|
// don't append the '.'
|
|
mimeInfo->AppendExtension(NS_ConvertUTF16toUTF8(Substring(fileExtToUse, 1)));
|
|
mimeInfo->SetPreferredAction(nsIMIMEInfo::useSystemDefault);
|
|
|
|
nsAutoString appInfo;
|
|
bool found;
|
|
|
|
// Retrieve the default application for this extension
|
|
if (mAppAssoc) {
|
|
// Vista: use the new application association COM interfaces
|
|
// for resolving helpers.
|
|
nsString assocType(fileExtToUse);
|
|
PRUnichar * pResult = nsnull;
|
|
HRESULT hr = mAppAssoc->QueryCurrentDefault(assocType.get(),
|
|
AT_FILEEXTENSION, AL_EFFECTIVE,
|
|
&pResult);
|
|
if (SUCCEEDED(hr)) {
|
|
found = true;
|
|
appInfo.Assign(pResult);
|
|
CoTaskMemFree(pResult);
|
|
}
|
|
else {
|
|
found = false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
found = NS_SUCCEEDED(regKey->ReadStringValue(EmptyString(),
|
|
appInfo));
|
|
}
|
|
|
|
// Bug 358297 - ignore the default handler, force the user to choose app
|
|
if (appInfo.EqualsLiteral("XPSViewer.Document"))
|
|
found = false;
|
|
|
|
if (!found) {
|
|
NS_IF_RELEASE(mimeInfo); // we failed to really find an entry in the registry
|
|
return nsnull;
|
|
}
|
|
|
|
// Get other nsIMIMEInfo fields from registry, if possible.
|
|
nsAutoString defaultDescription;
|
|
nsCOMPtr<nsIFile> defaultApplication;
|
|
|
|
if (NS_FAILED(GetDefaultAppInfo(appInfo, defaultDescription,
|
|
getter_AddRefs(defaultApplication)))) {
|
|
NS_IF_RELEASE(mimeInfo);
|
|
return nsnull;
|
|
}
|
|
|
|
mimeInfo->SetDefaultDescription(defaultDescription);
|
|
mimeInfo->SetDefaultApplicationHandler(defaultApplication);
|
|
|
|
// Grab the general description
|
|
GetMIMEInfoFromRegistry(appInfo, mimeInfo);
|
|
|
|
return mimeInfo;
|
|
}
|
|
|
|
already_AddRefed<nsIMIMEInfo> nsOSHelperAppService::GetMIMEInfoFromOS(const nsACString& aMIMEType, const nsACString& aFileExt, bool *aFound)
|
|
{
|
|
*aFound = true;
|
|
|
|
const nsCString& flatType = PromiseFlatCString(aMIMEType);
|
|
const nsCString& flatExt = PromiseFlatCString(aFileExt);
|
|
|
|
nsAutoString fileExtension;
|
|
/* XXX The Equals is a gross hack to wallpaper over the most common Win32
|
|
* extension issues caused by the fix for bug 116938. See bug
|
|
* 120327, comment 271 for why this is needed. Not even sure we
|
|
* want to remove this once we have fixed all this stuff to work
|
|
* right; any info we get from the OS on this type is pretty much
|
|
* useless....
|
|
* We'll do extension-based lookup for this type later in this function.
|
|
*/
|
|
if (!aMIMEType.LowerCaseEqualsLiteral(APPLICATION_OCTET_STREAM)) {
|
|
// (1) try to use the windows mime database to see if there is a mapping to a file extension
|
|
// (2) try to see if we have some left over 4.x registry info we can peek at...
|
|
GetExtensionFromWindowsMimeDatabase(aMIMEType, fileExtension);
|
|
LOG(("Windows mime database: extension '%s'\n", fileExtension.get()));
|
|
if (fileExtension.IsEmpty()) {
|
|
GetExtensionFrom4xRegistryInfo(aMIMEType, fileExtension);
|
|
LOG(("4.x Registry: extension '%s'\n", fileExtension.get()));
|
|
}
|
|
}
|
|
// If we found an extension for the type, do the lookup
|
|
nsMIMEInfoWin* mi = nsnull;
|
|
if (!fileExtension.IsEmpty())
|
|
mi = GetByExtension(fileExtension, flatType.get()).get();
|
|
LOG(("Extension lookup on '%s' found: 0x%p\n", fileExtension.get(), mi));
|
|
|
|
bool hasDefault = false;
|
|
if (mi) {
|
|
mi->GetHasDefaultHandler(&hasDefault);
|
|
// OK. We might have the case that |aFileExt| is a valid extension for the
|
|
// mimetype we were given. In that case, we do want to append aFileExt
|
|
// to the mimeinfo that we have. (E.g.: We are asked for video/mpeg and
|
|
// .mpg, but the primary extension for video/mpeg is .mpeg. But because
|
|
// .mpg is an extension for video/mpeg content, we want to append it)
|
|
if (!aFileExt.IsEmpty() && typeFromExtEquals(NS_ConvertUTF8toUTF16(flatExt).get(), flatType.get())) {
|
|
LOG(("Appending extension '%s' to mimeinfo, because its mimetype is '%s'\n",
|
|
flatExt.get(), flatType.get()));
|
|
bool extExist = false;
|
|
mi->ExtensionExists(aFileExt, &extExist);
|
|
if (!extExist)
|
|
mi->AppendExtension(aFileExt);
|
|
}
|
|
}
|
|
if (!mi || !hasDefault) {
|
|
nsRefPtr<nsMIMEInfoWin> miByExt =
|
|
GetByExtension(NS_ConvertUTF8toUTF16(aFileExt), flatType.get());
|
|
LOG(("Ext. lookup for '%s' found 0x%p\n", flatExt.get(), miByExt.get()));
|
|
if (!miByExt && mi)
|
|
return mi;
|
|
if (miByExt && !mi) {
|
|
miByExt.swap(mi);
|
|
return mi;
|
|
}
|
|
if (!miByExt && !mi) {
|
|
*aFound = false;
|
|
mi = new nsMIMEInfoWin(flatType);
|
|
if (mi) {
|
|
NS_ADDREF(mi);
|
|
if (!aFileExt.IsEmpty())
|
|
mi->AppendExtension(aFileExt);
|
|
}
|
|
|
|
return mi;
|
|
}
|
|
|
|
// if we get here, mi has no default app. copy from extension lookup.
|
|
nsCOMPtr<nsIFile> defaultApp;
|
|
nsAutoString desc;
|
|
miByExt->GetDefaultDescription(desc);
|
|
|
|
mi->SetDefaultDescription(desc);
|
|
}
|
|
return mi;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsOSHelperAppService::GetProtocolHandlerInfoFromOS(const nsACString &aScheme,
|
|
bool *found,
|
|
nsIHandlerInfo **_retval)
|
|
{
|
|
NS_ASSERTION(!aScheme.IsEmpty(), "No scheme was specified!");
|
|
|
|
nsresult rv = OSProtocolHandlerExists(nsPromiseFlatCString(aScheme).get(),
|
|
found);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
nsMIMEInfoWin *handlerInfo =
|
|
new nsMIMEInfoWin(aScheme, nsMIMEInfoBase::eProtocolInfo);
|
|
NS_ENSURE_TRUE(handlerInfo, NS_ERROR_OUT_OF_MEMORY);
|
|
NS_ADDREF(*_retval = handlerInfo);
|
|
|
|
if (!*found) {
|
|
// Code that calls this requires an object regardless if the OS has
|
|
// something for us, so we return the empty object.
|
|
return NS_OK;
|
|
}
|
|
|
|
nsAutoString desc;
|
|
GetApplicationDescription(aScheme, desc);
|
|
handlerInfo->SetDefaultDescription(desc);
|
|
|
|
return NS_OK;
|
|
}
|
|
|