UnregisterServer();

hr = SELFREG_E_CLASS;

}

}

return hr;

}

// these point to standard access control objects

// used to protect particular methods

IAccessControl *g_pacUsers = 0;

IAccessControl *g_pacAdmins = 0;

// this routine is called at process init time

// to build access control objects and to allow

// anonymous access to server by default

HRESULT InitializeApplicationSecurity(void)

{

// load groupnames from registry

static OLECHAR wszAdminsGroup[1024];

static OLECHAR wszUsersGroup[1024];

HKEY hkey;

long err = RegOpenKeyEx(HKEY_CLASSES_ROOT,

__TEXT(«AppID\{5223A054-2441-11d1-AF4F-0060976AA886}»),

0, KEY_QUERY_VALUE,

&hkey);

if (err == ERROR_SUCCESS)

{

DWORD cb = sizeof(wszAdminsGroup);

err = RegQueryValueExW(hkey, L'Chat Admins Group',

0, 0, (BYTE*)wszAdminsGroup,

&cb);

cb = sizeof(wszAdminsGroup);

if (err == ERROR_SUCCESS)

err = RegQueryValueExW(hkey,

L'Chat Users Group',

0, 0, (BYTE*)wszUsersGroup,

&cb);

RegCloseKey(hkey);

}

if (err != ERROR_SUCCESS)

return MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32,

GetLastError());

// declare vectors of user/groups for 2 access

// control objects

ACTRL_ACCESS_ENTRYW rgaaeUsers[] = {

{ {0, NO_MULTIPLE_TRUSTEE, TRUSTEE_IS_NAME,

TRUSTEE_IS_GROUP, wszUsersGroup },

ACTRL_ACCESS_ALLOWED, COM_RIGHTS_EXECUTE, 0,

NO_INHERITANCE, 0 },

};

ACTRL_ACCESS_ENTRY_LISTW aaelUsers = {

sizeof(rgaaeUsers)/sizeof(*rgaaeUsers),

rgaaeUsers

};

ACTRL_PROPERTY_ENTRYW apeUsers = { 0, &aaelUsers, 0 };

ACTRL_ACCESSW aaUsers = { 1, &apeUsers };

ACTRL_ACCESS_ENTRYW rgaaeAdmins[] = {

{ {0, NO_MULTIPLE_TRUSTEE, TRUSTEE_IS_NAME,

TRUSTEE_IS_GROUP, wszAdminsGroup },

ACTRL_ACCESS_ALLOWED, COM_RIGHTS_EXECUTE, 0,

NO_INHERITANCE, 0 },

};

ACTRL_ACCESS_ENTRY_LISTW aaelAdmins = {

sizeof(rgaaeAdmins)/sizeof(*rgaaeAdmins),

rgaaeAdmins

};

ACTRL_PROPERTY_ENTRYW apeAdmins = { 0, &aaelAdmins, 0 };

ACTRL_ACCESSW aaAdmins = { 1, &apeAdmins };

HRESULT hr = CoInitializeSecurity(0, -1, 0, 0,

RPC_C_AUTHN_LEVEL_NONE,

RPC_C_IMP_LEVEL_ANONYMOUS,

0,

EOAC_NONE,

0);

if (SUCCEEDED(hr))

{

hr = CoCreateInstance(CLSID_DCOMAccessControl,

0, CLSCTX_ALL, IID_IAccessControl,

(void**)&g_pacUsers);

if (SUCCEEDED(hr))

hr = g_pacUsers->SetAccessRights(&aaUsers);

if (SUCCEEDED(hr))

{

hr = CoCreateInstance(CLSID_DCOMAccessControl,

0, CLSCTX_ALL,

IID_IAccessControl,

(void**)&g_pacAdmins);

if (SUCCEEDED(hr))

hr = g_pacAdmins->SetAccessRights(&aaAdmins);

}

if (FAILED(hr))

{

if (g_pacAdmins)

{

g_pacAdmins->Release();

g_pacAdmins = 0;

}

if (g_pacUsers)

{

g_pacUsers->Release();

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