mirror of
https://github.com/mozilla/gecko-dev.git
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8450fb0148
MozReview-Commit-ID: KZ9w7zMZ35g --HG-- extra : rebase_source : 9913c46ebc885ee2de815811bfcb6a39a88f0d71
600 lines
21 KiB
C++
600 lines
21 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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* 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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#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 "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 "nsLocalFile.h"
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#include "nsIWindowsRegKey.h"
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#include "mozilla/UniquePtrExtensions.h"
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#include "mozilla/WindowsVersion.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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#include <shlwapi.h>
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#define LOG(args) MOZ_LOG(mLog, mozilla::LogLevel::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(nullptr)
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{
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CoInitialize(nullptr);
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CoCreateInstance(CLSID_ApplicationAssociationRegistration, nullptr,
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CLSCTX_INPROC, IID_IApplicationAssociationRegistration,
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(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 = nullptr;
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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(char16_t('.'), 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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int32_t pos = aFileExtension.FindChar(char16_t(','));
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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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wchar_t * pResult = nullptr;
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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",
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nullptr, nullptr, nullptr, nullptr);
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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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if (mozilla::IsWin8OrLater()) {
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wchar_t result[1024];
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DWORD resultSize = 1024;
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HRESULT hr = AssocQueryString(0x1000 /* ASSOCF_IS_PROTOCOL */,
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ASSOCSTR_FRIENDLYAPPNAME,
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buf.get(),
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NULL,
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result,
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&resultSize);
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if (SUCCEEDED(hr)) {
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_retval = result;
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return NS_OK;
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}
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}
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if (mAppAssoc) {
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// Vista: use new application association interface
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wchar_t * pResult = nullptr;
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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 char16_t* 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] != char16_t('.'))
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fileExtToUse = char16_t('.');
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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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// 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 = nullptr;
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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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// Check if there is a DelegateExecute string
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nsAutoString delegateExecute;
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rv = regKey->ReadStringValue(NS_LITERAL_STRING("DelegateExecute"), delegateExecute);
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NS_ENSURE_SUCCESS(rv, rv);
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// Look for InProcServer32
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nsAutoString delegateExecuteRegPath;
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delegateExecuteRegPath.AssignLiteral("CLSID\\");
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delegateExecuteRegPath.Append(delegateExecute);
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delegateExecuteRegPath.AppendLiteral("\\InProcServer32");
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rv = chkKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
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delegateExecuteRegPath,
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nsIWindowsRegKey::ACCESS_QUERY_VALUE);
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if (NS_SUCCEEDED(rv)) {
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rv = chkKey->ReadStringValue(EmptyString(), handlerCommand);
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}
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if (NS_FAILED(rv)) {
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// Look for LocalServer32
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delegateExecuteRegPath.AssignLiteral("CLSID\\");
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delegateExecuteRegPath.Append(delegateExecute);
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delegateExecuteRegPath.AppendLiteral("\\LocalServer32");
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rv = chkKey->Open(nsIWindowsRegKey::ROOT_KEY_CLASSES_ROOT,
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delegateExecuteRegPath,
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nsIWindowsRegKey::ACCESS_QUERY_VALUE);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = chkKey->ReadStringValue(EmptyString(), handlerCommand);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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}
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}
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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<nsILocalFileWin> lf = new nsLocalFile();
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rv = lf->InitWithCommandLine(handlerCommand);
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NS_ENSURE_SUCCESS(rv, rv);
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// The "FileDescription" field contains the actual name of the application.
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lf->GetVersionInfoField("FileDescription", aDefaultDescription);
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lf.forget(aDefaultApplication);
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return NS_OK;
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}
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already_AddRefed<nsMIMEInfoWin> nsOSHelperAppService::GetByExtension(const nsAFlatString& aFileExt, const char *aTypeHint)
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{
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if (aFileExt.IsEmpty())
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return nullptr;
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// windows registry assumes your file extension is going to include the '.'.
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// so make sure it's there...
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nsAutoString fileExtToUse;
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if (aFileExt.First() != char16_t('.'))
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fileExtToUse = char16_t('.');
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fileExtToUse.Append(aFileExt);
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// Try to get an entry from the windows registry.
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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 nullptr;
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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 nullptr;
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nsAutoCString typeToUse;
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if (aTypeHint && *aTypeHint) {
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typeToUse.Assign(aTypeHint);
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}
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else {
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nsAutoString temp;
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if (NS_FAILED(regKey->ReadStringValue(NS_LITERAL_STRING("Content Type"),
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temp)) || temp.IsEmpty()) {
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return nullptr;
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}
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// Content-Type is always in ASCII
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LossyAppendUTF16toASCII(temp, typeToUse);
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}
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RefPtr<nsMIMEInfoWin> mimeInfo = new nsMIMEInfoWin(typeToUse);
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// don't append the '.'
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mimeInfo->AppendExtension(NS_ConvertUTF16toUTF8(Substring(fileExtToUse, 1)));
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mimeInfo->SetPreferredAction(nsIMIMEInfo::useSystemDefault);
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nsAutoString appInfo;
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bool found;
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// Retrieve the default application for this extension
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if (mAppAssoc) {
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// Vista: use the new application association COM interfaces
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// for resolving helpers.
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nsString assocType(fileExtToUse);
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wchar_t * pResult = nullptr;
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HRESULT hr = mAppAssoc->QueryCurrentDefault(assocType.get(),
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AT_FILEEXTENSION, AL_EFFECTIVE,
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&pResult);
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if (SUCCEEDED(hr)) {
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found = true;
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appInfo.Assign(pResult);
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CoTaskMemFree(pResult);
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}
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else {
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found = false;
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}
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}
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else
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{
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found = NS_SUCCEEDED(regKey->ReadStringValue(EmptyString(),
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appInfo));
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}
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// Bug 358297 - ignore the default handler, force the user to choose app
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if (appInfo.EqualsLiteral("XPSViewer.Document"))
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found = false;
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if (!found) {
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return nullptr;
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}
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// Get other nsIMIMEInfo fields from registry, if possible.
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nsAutoString defaultDescription;
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nsCOMPtr<nsIFile> defaultApplication;
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if (NS_FAILED(GetDefaultAppInfo(appInfo, defaultDescription,
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getter_AddRefs(defaultApplication)))) {
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return nullptr;
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}
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mimeInfo->SetDefaultDescription(defaultDescription);
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mimeInfo->SetDefaultApplicationHandler(defaultApplication);
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// Grab the general description
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GetMIMEInfoFromRegistry(appInfo, mimeInfo);
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return mimeInfo.forget();
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}
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already_AddRefed<nsIMIMEInfo> nsOSHelperAppService::GetMIMEInfoFromOS(const nsACString& aMIMEType, const nsACString& aFileExt, bool *aFound)
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{
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*aFound = true;
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const nsCString& flatType = PromiseFlatCString(aMIMEType);
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const nsCString& flatExt = PromiseFlatCString(aFileExt);
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nsAutoString fileExtension;
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/* XXX The Equals is a gross hack to wallpaper over the most common Win32
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* extension issues caused by the fix for bug 116938. See bug
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* 120327, comment 271 for why this is needed. Not even sure we
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* want to remove this once we have fixed all this stuff to work
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* right; any info we get from the OS on this type is pretty much
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* useless....
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* We'll do extension-based lookup for this type later in this function.
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*/
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if (!aMIMEType.IsEmpty() &&
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!aMIMEType.LowerCaseEqualsLiteral(APPLICATION_OCTET_STREAM)) {
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// (1) try to use the windows mime database to see if there is a mapping to a file extension
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// (2) try to see if we have some left over 4.x registry info we can peek at...
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GetExtensionFromWindowsMimeDatabase(aMIMEType, fileExtension);
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LOG(("Windows mime database: extension '%s'\n", fileExtension.get()));
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if (fileExtension.IsEmpty()) {
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GetExtensionFrom4xRegistryInfo(aMIMEType, fileExtension);
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LOG(("4.x Registry: extension '%s'\n", fileExtension.get()));
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|
}
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}
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// If we found an extension for the type, do the lookup
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|
RefPtr<nsMIMEInfoWin> mi;
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if (!fileExtension.IsEmpty())
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mi = GetByExtension(fileExtension, flatType.get());
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LOG(("Extension lookup on '%s' found: 0x%p\n", fileExtension.get(), mi.get()));
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|
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bool hasDefault = false;
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if (mi) {
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|
mi->GetHasDefaultHandler(&hasDefault);
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// OK. We might have the case that |aFileExt| is a valid extension for the
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|
// mimetype we were given. In that case, we do want to append aFileExt
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|
// 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
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// .mpg is an extension for video/mpeg content, we want to append it)
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|
if (!aFileExt.IsEmpty() && typeFromExtEquals(NS_ConvertUTF8toUTF16(flatExt).get(), flatType.get())) {
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LOG(("Appending extension '%s' to mimeinfo, because its mimetype is '%s'\n",
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flatExt.get(), flatType.get()));
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|
bool extExist = false;
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|
mi->ExtensionExists(aFileExt, &extExist);
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|
if (!extExist)
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|
mi->AppendExtension(aFileExt);
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|
}
|
|
}
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|
if (!mi || !hasDefault) {
|
|
RefPtr<nsMIMEInfoWin> miByExt =
|
|
GetByExtension(NS_ConvertUTF8toUTF16(aFileExt), flatType.get());
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|
LOG(("Ext. lookup for '%s' found 0x%p\n", flatExt.get(), miByExt.get()));
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|
if (!miByExt && mi)
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|
return mi.forget();
|
|
if (miByExt && !mi) {
|
|
return miByExt.forget();
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|
}
|
|
if (!miByExt && !mi) {
|
|
*aFound = false;
|
|
mi = new nsMIMEInfoWin(flatType);
|
|
if (!aFileExt.IsEmpty()) {
|
|
mi->AppendExtension(aFileExt);
|
|
}
|
|
|
|
return mi.forget();
|
|
}
|
|
|
|
// if we get here, mi has no default app. copy from extension lookup.
|
|
nsCOMPtr<nsIFile> defaultApp;
|
|
nsAutoString desc;
|
|
miByExt->GetDefaultDescription(desc);
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|
|
|
mi->SetDefaultDescription(desc);
|
|
}
|
|
return mi.forget();
|
|
}
|
|
|
|
NS_IMETHODIMP
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|
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;
|
|
}
|
|
|