gecko/xulrunner/app/nsRegisterGREWin.cpp

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla XULRunner.
*
* The Initial Developer of the Original Code is
* Benjamin Smedberg <benjamin@smedbergs.us>.
*
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsRegisterGRE.h"
#include "nsXPCOM.h"
#include "nsIFile.h"
#include "nsILocalFile.h"
#include "nsAppRunner.h" // for MAXPATHLEN
#include "nsStringAPI.h"
#include "nsXPCOMGlue.h"
#include "nsCOMPtr.h"
#include "prio.h"
#include <windows.h>
#include "malloc.h"
static const wchar_t kRegKeyRoot[] = L"Software\\mozilla.org\\GRE";
static const wchar_t kRegFileGlobal[] = L"global.reginfo";
static const wchar_t kRegFileUser[] = L"user.reginfo";
static nsresult
MakeVersionKey(HKEY root, const wchar_t* keyname, const nsString &grehome,
const GREProperty *aProperties, PRUint32 aPropertiesLen,
const wchar_t *aGREMilestone)
{
HKEY subkey;
DWORD disp;
if (::RegCreateKeyExW(root, keyname, NULL, NULL, 0, KEY_WRITE, NULL,
&subkey, &disp) != ERROR_SUCCESS)
return NS_ERROR_FAILURE;
if (disp != REG_CREATED_NEW_KEY) {
::RegCloseKey(subkey);
return NS_ERROR_FAILURE;
}
PRBool failed = PR_FALSE;
failed |= ::RegSetValueExW(subkey, L"Version", NULL, REG_SZ,
(BYTE*) aGREMilestone,
sizeof(PRUnichar) * (wcslen(aGREMilestone) + 1))
!= ERROR_SUCCESS;
failed |= ::RegSetValueExW(subkey, L"GreHome", NULL, REG_SZ,
(BYTE*) grehome.get(),
sizeof(PRUnichar) * (grehome.Length() + 1))
!= ERROR_SUCCESS;
for (PRUint32 i = 0; i < aPropertiesLen; ++i) {
// Properties should be ascii only
NS_ConvertASCIItoUTF16 prop(aProperties[i].property);
NS_ConvertASCIItoUTF16 val(aProperties[i].value);
failed |= ::RegSetValueExW(subkey, prop.get(), NULL, REG_SZ,
(BYTE*) val.get(),
sizeof(wchar_t)*(val.Length()+1)
) != ERROR_SUCCESS;
}
::RegCloseKey(subkey);
if (failed) {
// we created a key but couldn't fill it properly: delete it
::RegDeleteKeyW(root, keyname);
return NS_ERROR_FAILURE;
}
return NS_OK;
}
int
RegisterXULRunner(PRBool aRegisterGlobally, nsIFile* aLocation,
const GREProperty *aProperties, PRUint32 aPropertiesLen,
const char *aGREMilestoneAscii)
{
// Register ourself in the windows registry, and record what key we created
// for future unregistration.
nsresult rv;
PRBool irv;
int i;
NS_ConvertASCIItoUTF16 aGREMilestone(aGREMilestoneAscii);
nsString greHome;
rv = aLocation->GetPath(greHome);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIFile> savedInfoFile;
aLocation->Clone(getter_AddRefs(savedInfoFile));
nsCOMPtr<nsILocalFile> localSaved(do_QueryInterface(savedInfoFile));
if (!localSaved)
return PR_FALSE;
const wchar_t *infoname = aRegisterGlobally ? kRegFileGlobal : kRegFileUser;
localSaved->Append(nsDependentString(infoname));
PRFileDesc* fd = nsnull;
rv = localSaved->OpenNSPRFileDesc(PR_CREATE_FILE | PR_RDWR, 0664, &fd);
if (NS_FAILED(rv)) {
// XXX report error?
return PR_FALSE;
}
HKEY rootKey = NULL;
wchar_t keyName[MAXPATHLEN];
PRInt32 r;
if (::RegCreateKeyExW(aRegisterGlobally ? HKEY_LOCAL_MACHINE :
HKEY_CURRENT_USER,
kRegKeyRoot, NULL, NULL, 0, KEY_WRITE,
NULL, &rootKey, NULL) != ERROR_SUCCESS) {
irv = PR_FALSE;
goto reg_end;
}
r = PR_Read(fd, keyName, MAXPATHLEN);
if (r < 0) {
irv = PR_FALSE;
goto reg_end;
}
if (r > 0) {
keyName[r] = '\0';
// There was already a .reginfo file, let's see if we are already
// registered.
HKEY existing = NULL;
if (::RegOpenKeyExW(rootKey, keyName, NULL, KEY_QUERY_VALUE, &existing) ==
ERROR_SUCCESS) {
fprintf(stderr, "Warning: Registry key Software\\mozilla.org\\GRE\\%s already exists.\n"
"No action was performed.\n",
keyName);
irv = PR_FALSE;
goto reg_end;
}
PR_Close(fd);
fd = nsnull;
rv = localSaved->OpenNSPRFileDesc(PR_CREATE_FILE | PR_WRONLY | PR_TRUNCATE, 0664, &fd);
if (NS_FAILED(rv)) {
// XXX report error?
irv = PR_FALSE;
goto reg_end;
}
}
wcscpy(keyName, aGREMilestone.get());
rv = MakeVersionKey(rootKey, keyName, greHome, aProperties, aPropertiesLen,
aGREMilestone.get());
if (NS_SUCCEEDED(rv)) {
NS_ConvertUTF16toUTF8 keyNameAscii(keyName);
PR_Write(fd, keyNameAscii.get(), sizeof(char)*keyNameAscii.Length());
irv = PR_TRUE;
goto reg_end;
}
for (i = 0; i < 1000; ++i) {
swprintf(keyName, L"%s_%i", aGREMilestone.get(), i);
rv = MakeVersionKey(rootKey, keyName, greHome,
aProperties, aPropertiesLen,
aGREMilestone.get());
if (NS_SUCCEEDED(rv)) {
NS_ConvertUTF16toUTF8 keyNameAscii(keyName);
PR_Write(fd, keyNameAscii.get(), sizeof(char)*keyNameAscii.Length());
irv = PR_TRUE;
goto reg_end;
}
}
irv = PR_FALSE;
reg_end:
if (fd)
PR_Close(fd);
if (rootKey)
::RegCloseKey(rootKey);
return irv;
}
void
UnregisterXULRunner(PRBool aGlobal, nsIFile* aLocation,
const char *aGREMilestone)
{
nsCOMPtr<nsIFile> savedInfoFile;
aLocation->Clone(getter_AddRefs(savedInfoFile));
nsCOMPtr<nsILocalFile> localSaved (do_QueryInterface(savedInfoFile));
if (!localSaved)
return;
const wchar_t *infoname = aGlobal ? kRegFileGlobal : kRegFileUser;
localSaved->Append(nsDependentString(infoname));
PRFileDesc* fd = nsnull;
nsresult rv = localSaved->OpenNSPRFileDesc(PR_RDONLY, 0, &fd);
if (NS_FAILED(rv)) {
// XXX report error?
return;
}
wchar_t keyName[MAXPATHLEN];
PRInt32 r = PR_Read(fd, keyName, MAXPATHLEN);
PR_Close(fd);
localSaved->Remove(PR_FALSE);
if (r <= 0)
return;
keyName[r] = '\0';
HKEY rootKey = NULL;
if (::RegOpenKeyExW(aGlobal ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER,
kRegKeyRoot, 0, KEY_READ, &rootKey) != ERROR_SUCCESS)
return;
HKEY subKey = NULL;
if (::RegOpenKeyExW(rootKey, keyName, 0, KEY_READ, &subKey) == ERROR_SUCCESS) {
char regpath[MAXPATHLEN];
DWORD reglen = MAXPATHLEN;
if (::RegQueryValueExW(subKey, L"GreHome", NULL, NULL,
(BYTE*) regpath, &reglen) == ERROR_SUCCESS) {
nsCOMPtr<nsILocalFile> regpathfile;
rv = NS_NewNativeLocalFile(nsDependentCString(regpath), PR_FALSE,
getter_AddRefs(regpathfile));
PRBool eq;
if (NS_SUCCEEDED(rv) &&
NS_SUCCEEDED(aLocation->Equals(regpathfile, &eq)) && !eq) {
// We think we registered for this key, but it doesn't point to
// us any more!
fprintf(stderr, "Warning: Registry key Software\\mozilla.org\\GRE\\%s points to\n"
"alternate path '%s'; unregistration was not successful.\n",
keyName, regpath);
::RegCloseKey(subKey);
::RegCloseKey(rootKey);
return;
}
}
::RegCloseKey(subKey);
}
::RegDeleteKeyW(rootKey, keyName);
::RegCloseKey(rootKey);
}