diff options
| -rw-r--r-- | protocols/Skype/src/skype.cpp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/protocols/Skype/src/skype.cpp b/protocols/Skype/src/skype.cpp index f7245fef0c..2450b4e289 100644 --- a/protocols/Skype/src/skype.cpp +++ b/protocols/Skype/src/skype.cpp @@ -69,6 +69,79 @@ int LoadKeyPair() return 0;
}
+//
+// FUNCTION: IsRunAsAdmin()
+//
+// PURPOSE: The function checks whether the current process is run as
+// administrator. In other words, it dictates whether the primary access
+// token of the process belongs to user account that is a member of the
+// local Administrators group and it is elevated.
+//
+// RETURN VALUE: Returns TRUE if the primary access token of the process
+// belongs to user account that is a member of the local Administrators
+// group and it is elevated. Returns FALSE if the token does not.
+//
+// EXCEPTION: If this function fails, it throws a C++ DWORD exception which
+// contains the Win32 error code of the failure.
+//
+// EXAMPLE CALL:
+// try
+// {
+// if (IsRunAsAdmin())
+// wprintf (L"Process is run as administrator\n");
+// else
+// wprintf (L"Process is not run as administrator\n");
+// }
+// catch (DWORD dwError)
+// {
+// wprintf(L"IsRunAsAdmin failed w/err %lu\n", dwError);
+// }
+//
+BOOL IsRunAsAdmin()
+{
+ BOOL fIsRunAsAdmin = FALSE;
+ DWORD dwError = ERROR_SUCCESS;
+ PSID pAdministratorsGroup = NULL;
+
+ // Allocate and initialize a SID of the administrators group.
+ SID_IDENTIFIER_AUTHORITY NtAuthority = SECURITY_NT_AUTHORITY;
+ if (!AllocateAndInitializeSid(
+ &NtAuthority,
+ 2,
+ SECURITY_BUILTIN_DOMAIN_RID,
+ DOMAIN_ALIAS_RID_ADMINS,
+ 0, 0, 0, 0, 0, 0,
+ &pAdministratorsGroup))
+ {
+ dwError = GetLastError();
+ goto Cleanup;
+ }
+
+ // Determine whether the SID of administrators group is enabled in
+ // the primary access token of the process.
+ if (!CheckTokenMembership(NULL, pAdministratorsGroup, &fIsRunAsAdmin))
+ {
+ dwError = GetLastError();
+ goto Cleanup;
+ }
+
+Cleanup:
+ // Centralized cleanup for all allocated resources.
+ if (pAdministratorsGroup)
+ {
+ FreeSid(pAdministratorsGroup);
+ pAdministratorsGroup = NULL;
+ }
+
+ // Throw the error if something failed in the function.
+ if (ERROR_SUCCESS != dwError)
+ {
+ throw dwError;
+ }
+
+ return fIsRunAsAdmin;
+}
+
int StartSkypeRuntime()
{
// loading skype runtime
@@ -101,6 +174,37 @@ int StartSkypeRuntime() mir_sntprintf(szFilename, SIZEOF(szFilename), _T("%s\\%s"), szFilename, _T("SkypeKit.exe"));
if (!PathFileExists(szFilename))
{
+ // Check the current process's "run as administrator" status.
+ // Elevate the process if it is not run as administrator.
+ if (!IsRunAsAdmin())
+ {
+ wchar_t szPath[MAX_PATH], cmdLine[100];
+ GetModuleFileName(NULL, szPath, ARRAYSIZE(szPath));
+ TCHAR *profilename = Utils_ReplaceVarsT(_T("%miranda_profilename%"));
+ mir_sntprintf(cmdLine, SIZEOF(cmdLine), _T(" /restart:%d /profile=%s"), GetCurrentProcessId(), profilename);
+ // Launch itself as administrator.
+ SHELLEXECUTEINFO sei = { sizeof(sei) };
+ sei.lpVerb = L"runas";
+ sei.lpFile = szPath;
+ sei.lpParameters = cmdLine;
+ //sei.hwnd = hDlg;
+ sei.nShow = SW_NORMAL;
+
+ if (!ShellExecuteEx(&sei))
+ {
+ DWORD dwError = GetLastError();
+ if (dwError == ERROR_CANCELLED)
+ {
+ // The user refused to allow privileges elevation.
+ // Do nothing ...
+ }
+ }
+ else
+ {
+ //DestroyWindow(hDlg); // Quit itself
+ CallService("CloseAction", 0, 0);
+ }
+ }
if ((hFile = CreateFile(szFilename, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0)) != INVALID_HANDLE_VALUE) {
WriteFile(hFile, (void *)pData, dwSize, &written, NULL);
CloseHandle(hFile);
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