Function GetBackupKeys

clientapi/routing/key_backup.go:232–299

Get keys from a given backup version. Response returned varies depending on if roomID and sessionID are set.

(
	req *http.Request, userAPI userapi.ClientUserAPI, device *userapi.Device, version, roomID, sessionID string,
)

// Get keys from a given backup version. Response returned varies depending on if roomID and sessionID are set.
func GetBackupKeys(
	req *http.Request, userAPI userapi.ClientUserAPI, device *userapi.Device, version, roomID, sessionID string,
) util.JSONResponse {
	var queryResp userapi.QueryKeyBackupResponse
	userAPI.QueryKeyBackup(req.Context(), &userapi.QueryKeyBackupRequest{
		UserID:           device.UserID,
		Version:          version,
		ReturnKeys:       true,
		KeysForRoomID:    roomID,
		KeysForSessionID: sessionID,
	}, &queryResp)
	if queryResp.Error != "" {
		return util.ErrorResponse(fmt.Errorf("QueryKeyBackup: %s", queryResp.Error))
	}
	if !queryResp.Exists {
		return util.JSONResponse{
			Code: 404,
			JSON: jsonerror.NotFound("version not found"),
		}
	}
	if sessionID != "" {
		// return the key itself if it was found
		roomData, ok := queryResp.Keys[roomID]
		if ok {
			key, ok := roomData[sessionID]
			if ok {
				return util.JSONResponse{
					Code: 200,
					JSON: key,
				}
			}
		}
	} else if roomID != "" {
		roomData, ok := queryResp.Keys[roomID]
		if ok {
			// wrap response in "sessions"
			return util.JSONResponse{
				Code: 200,
				JSON: struct {
					Sessions map[string]userapi.KeyBackupSession `json:"sessions"`
				}{
					Sessions: roomData,
				},
			}
		}
	} else {
		// response is the same as the upload request
		var resp keyBackupSessionRequest
		resp.Rooms = make(map[string]struct {
			Sessions map[string]userapi.KeyBackupSession `json:"sessions"`
		})
		for roomID, roomData := range queryResp.Keys {
			resp.Rooms[roomID] = struct {
				Sessions map[string]userapi.KeyBackupSession `json:"sessions"`
			}{
				Sessions: roomData,
			}
		}