regsvr.c

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

	    RegCloseKey(progid_key);
	    if (res != ERROR_SUCCESS) goto error_close_clsid_key;
	}

    error_close_clsid_key:
	RegCloseKey(clsid_key);
    }

error_close_coclass_key:
    RegCloseKey(coclass_key);
error_return:
    return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
}

/***********************************************************************
 *		unregister_coclasses
 */
static HRESULT unregister_coclasses(struct regsvr_coclass const *list)
{
    LONG res = ERROR_SUCCESS;
    HKEY coclass_key;

    res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0,
			KEY_READ | KEY_WRITE, &coclass_key);
    if (res == ERROR_FILE_NOT_FOUND) return S_OK;
    if (res != ERROR_SUCCESS) goto error_return;

    for (; res == ERROR_SUCCESS && list->clsid; ++list) {
	WCHAR buf[39];

	StringFromGUID2(list->clsid, buf, 39);
	res = recursive_delete_keyW(coclass_key, buf);
	if (res != ERROR_SUCCESS) goto error_close_coclass_key;

	if (list->progid) {
	    res = recursive_delete_keyA(HKEY_CLASSES_ROOT, list->progid);
	    if (res != ERROR_SUCCESS) goto error_close_coclass_key;
	}
    }

error_close_coclass_key:
    RegCloseKey(coclass_key);
error_return:
    return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
}

/**********************************************************************
 * register_namespace_extensions
 */
static WCHAR *get_namespace_key(struct regsvr_namespace const *list) {
    static const WCHAR wszExplorerKey[] = {
        'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
        'W','i','n','d','o','w','s','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
        'E','x','p','l','o','r','e','r','\\',0 };
    static const WCHAR wszNamespace[] = { '\\','N','a','m','e','s','p','a','c','e','\\',0 };
    WCHAR *pwszKey, *pwszCLSID;

    pwszKey = HeapAlloc(GetProcessHeap(), 0, sizeof(wszExplorerKey)+sizeof(wszNamespace)+
                                             sizeof(WCHAR)*(lstrlenW(list->parent)+CHARS_IN_GUID));
    if (!pwszKey)
        return NULL;

    lstrcpyW(pwszKey, wszExplorerKey);
    lstrcatW(pwszKey, list->parent);
    lstrcatW(pwszKey, wszNamespace);
    if (FAILED(StringFromCLSID(list->clsid, &pwszCLSID))) {
        HeapFree(GetProcessHeap(), 0, pwszKey);
        return NULL;
    }
    lstrcatW(pwszKey, pwszCLSID);
    CoTaskMemFree(pwszCLSID);

    return pwszKey;
}

static HRESULT register_namespace_extensions(struct regsvr_namespace const *list) {
    WCHAR *pwszKey;
    HKEY hKey;
    
    for (; list->clsid; list++) {
        pwszKey = get_namespace_key(list);
            
        /* Create the key and set the value. */
        if (pwszKey && ERROR_SUCCESS == 
            RegCreateKeyExW(HKEY_LOCAL_MACHINE, pwszKey, 0, NULL, 0, KEY_WRITE, NULL, &hKey, NULL)) 
        {
            RegSetValueExW(hKey, NULL, 0, REG_SZ, (LPBYTE)list->value, sizeof(WCHAR)*(lstrlenW(list->value)+1));
            RegCloseKey(hKey);
        }

        HeapFree(GetProcessHeap(), 0, pwszKey);
    }
    return S_OK;
}

static HRESULT unregister_namespace_extensions(struct regsvr_namespace const *list) {
    WCHAR *pwszKey;
    
    for (; list->clsid; list++) {
        pwszKey = get_namespace_key(list);
        RegDeleteKeyW(HKEY_LOCAL_MACHINE, pwszKey);
        HeapFree(GetProcessHeap(), 0, pwszKey);
    }
    return S_OK;
}

/***********************************************************************
 *		regsvr_key_guid
 */
static LONG register_key_guid(HKEY base, WCHAR const *name, GUID const *guid)
{
    WCHAR buf[39];

    StringFromGUID2(guid, buf, 39);
    return register_key_defvalueW(base, name, buf);
}

/***********************************************************************
 *		regsvr_key_defvalueW
 */
static LONG register_key_defvalueW(
    HKEY base,
    WCHAR const *name,
    WCHAR const *value)
{
    LONG res;
    HKEY key;

    res = RegCreateKeyExW(base, name, 0, NULL, 0,
			  KEY_READ | KEY_WRITE, NULL, &key, NULL);
    if (res != ERROR_SUCCESS) return res;
    res = RegSetValueExW(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
			 (lstrlenW(value) + 1) * sizeof(WCHAR));
    RegCloseKey(key);
    return res;
}

/***********************************************************************
 *		regsvr_key_defvalueA
 */
static LONG register_key_defvalueA(
    HKEY base,
    WCHAR const *name,
    char const *value)
{
    LONG res;
    HKEY key;

    res = RegCreateKeyExW(base, name, 0, NULL, 0,
			  KEY_READ | KEY_WRITE, NULL, &key, NULL);
    if (res != ERROR_SUCCESS) return res;
    res = RegSetValueExA(key, NULL, 0, REG_SZ, (CONST BYTE*)value,
			 lstrlenA(value) + 1);
    RegCloseKey(key);
    return res;
}

/***********************************************************************
 *		recursive_delete_key
 */
static LONG recursive_delete_key(HKEY key)
{
    LONG res;
    WCHAR subkey_name[MAX_PATH];
    DWORD cName;
    HKEY subkey;

    for (;;) {
	cName = sizeof(subkey_name) / sizeof(WCHAR);
	res = RegEnumKeyExW(key, 0, subkey_name, &cName,
			    NULL, NULL, NULL, NULL);
	if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) {
	    res = ERROR_SUCCESS; /* presumably we're done enumerating */
	    break;
	}
	res = RegOpenKeyExW(key, subkey_name, 0,
			    KEY_READ | KEY_WRITE, &subkey);
	if (res == ERROR_FILE_NOT_FOUND) continue;
	if (res != ERROR_SUCCESS) break;

	res = recursive_delete_key(subkey);
	RegCloseKey(subkey);
	if (res != ERROR_SUCCESS) break;
    }

    if (res == ERROR_SUCCESS) res = RegDeleteKeyW(key, 0);
    return res;
}

/***********************************************************************
 *		recursive_delete_keyA
 */
static LONG recursive_delete_keyA(HKEY base, char const *name)
{
    LONG res;
    HKEY key;

    res = RegOpenKeyExA(base, name, 0, KEY_READ | KEY_WRITE, &key);
    if (res == ERROR_FILE_NOT_FOUND) return ERROR_SUCCESS;
    if (res != ERROR_SUCCESS) return res;
    res = recursive_delete_key(key);
    RegCloseKey(key);
    return res;
}

/***********************************************************************
 *		recursive_delete_keyW
 */
static LONG recursive_delete_keyW(HKEY base, WCHAR const *name)
{
    LONG res;
    HKEY key;

    res = RegOpenKeyExW(base, name, 0, KEY_READ | KEY_WRITE, &key);
    if (res == ERROR_FILE_NOT_FOUND) return ERROR_SUCCESS;
    if (res != ERROR_SUCCESS) return res;
    res = recursive_delete_key(key);
    RegCloseKey(key);
    return res;
}

/***********************************************************************
 *		coclass list
 */
static GUID const CLSID_Desktop = {
    0x00021400, 0x0000, 0x0000, {0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46} };

static GUID const CLSID_Shortcut = {
    0x00021401, 0x0000, 0x0000, {0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46} };

static struct regsvr_coclass const coclass_list[] = {
    {   &CLSID_Desktop,
	"Desktop",
	NULL,
	"shell32.dll",
	"Apartment"
    },
    {   &CLSID_DragDropHelper,
        "Shell Drag and Drop Helper",
        NULL,
        "shell32.dll",
        "Apartment"
    },
    {   &CLSID_MyComputer,
	"My Computer",
	NULL,
	"shell32.dll",
	"Apartment"
    },
    {   &CLSID_Shortcut,
	"Shortcut",
	NULL,
	"shell32.dll",
	"Apartment",
	SHELLEX_MAYCHANGEDEFAULTMENU
    },
    {   &CLSID_AutoComplete,
	"AutoComplete",
	NULL,
	"shell32.dll",
	"Apartment",
    },
    {	&CLSID_FolderShortcut,
	"Foldershortcut",
	NULL,
	"shell32.dll",
	"Apartment",
	SHELLFOLDER_ATTRIBUTES|SHELLFOLDER_CALLFORATTRIBUTES,
	SFGAO_FILESYSTEM|SFGAO_FOLDER|SFGAO_LINK,
	SFGAO_HASSUBFOLDER|SFGAO_FILESYSTEM|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR
    },
    {	&CLSID_MyDocuments,
	"My Documents",
	NULL,
	"shell32.dll",
	"Apartment",
	SHELLFOLDER_WANTSFORPARSING|SHELLFOLDER_ATTRIBUTES|SHELLFOLDER_CALLFORATTRIBUTES,
	SFGAO_FILESYSANCESTOR|SFGAO_FOLDER|SFGAO_HASSUBFOLDER,
	SFGAO_FILESYSTEM
    },
    { NULL }			/* list terminator */
};

/***********************************************************************
 *		interface list
 */

static struct regsvr_interface const interface_list[] = {
    { NULL }			/* list terminator */
};

/***********************************************************************
 *              namespace extensions list
 */
static const WCHAR wszDesktop[] = { 'D','e','s','k','t','o','p',0 };
static const WCHAR wszSlash[] = { '/', 0 };
static const WCHAR wszMyDocuments[] = { 'M','y',' ','D','o','c','u','m','e','n','t','s', 0 };

static struct regsvr_namespace const namespace_extensions_list[] = {
#if 0
    {   
        &CLSID_MyDocuments,
        wszDesktop,
        wszMyDocuments
    },
#endif
    { NULL }
};

/***********************************************************************
 *		DllRegisterServer (SHELL32.@)
 */
HRESULT WINAPI DllRegisterServer(void)
{
    HRESULT hr;

    TRACE("\n");

    hr = register_coclasses(coclass_list);
    if (SUCCEEDED(hr))
	hr = register_interfaces(interface_list);
    if (SUCCEEDED(hr))
	hr = SHELL_RegisterShellFolders();
    if (SUCCEEDED(hr))
        hr = register_namespace_extensions(namespace_extensions_list);
    return hr;
}

/***********************************************************************
 *		DllUnregisterServer (SHELL32.@)
 */
HRESULT WINAPI DllUnregisterServer(void)
{
    HRESULT hr;

    TRACE("\n");

    hr = unregister_coclasses(coclass_list);
    if (SUCCEEDED(hr))
	hr = unregister_interfaces(interface_list);
    if (SUCCEEDED(hr))
        hr = unregister_namespace_extensions(namespace_extensions_list);
    return hr;
}