68 lines
1.8 KiB
Go
68 lines
1.8 KiB
Go
package lockserver
|
|
|
|
import (
|
|
"fmt"
|
|
"net"
|
|
"time"
|
|
"strings"
|
|
|
|
log "github.com/sirupsen/logrus"
|
|
)
|
|
|
|
// Build key encoding request command for the Assa Abloy lock server.
|
|
func (lock *AssaLockServer) BuildCommand(doorReq DoorCardRequest, checkIn, checkOut time.Time) error {
|
|
ci := checkIn.Format("200601021504")
|
|
co := checkOut.Format("200601021504")
|
|
|
|
lock.command = fmt.Sprintf("CCA;EA%s;GR%s;CO%s;CI%s;AM1;\r\n", lock.encoderAddr, doorReq.RoomField, co, ci)
|
|
return nil
|
|
}
|
|
|
|
// Checks heart beat of the Assa Abloy lock server and perform key encoding
|
|
func (lock *AssaLockServer) LockSequence(conn net.Conn) error {
|
|
const funcName = "AssaLockServer.LockSequence"
|
|
resp, err := sendHeartbeatToServer(conn)
|
|
if err != nil {
|
|
return fmt.Errorf("[%s] heartbeat failed: %v", funcName, err)
|
|
}
|
|
log.Infof("Heartbeat response: %s", resp)
|
|
|
|
resp, err = requestEncoding(conn, lock.command)
|
|
if err != nil {
|
|
return fmt.Errorf("[%s] request encoding failed: %v", funcName, err)
|
|
}
|
|
log.Infof("Encoding response: %s", resp)
|
|
return nil
|
|
}
|
|
|
|
func sendHeartbeatToServer(conn net.Conn) (string, error) {
|
|
const heartbeatRegister = "CCC;EAHEARTBEAT;AM1;\r\n"
|
|
|
|
raw, err := sendAndReceive(conn, []byte(heartbeatRegister))
|
|
if err != nil {
|
|
return "", fmt.Errorf("failed to send Heartbeat command: %v", err)
|
|
}
|
|
|
|
return parseAssaResponse(raw)
|
|
}
|
|
|
|
func requestEncoding(conn net.Conn, command string) (string, error) {
|
|
raw, err := sendAndReceive(conn, []byte(command))
|
|
if err != nil {
|
|
return "", fmt.Errorf("failed to send Encoding request: %v", err)
|
|
}
|
|
|
|
return parseAssaResponse(raw)
|
|
}
|
|
|
|
func parseAssaResponse(raw string) (string, error) {
|
|
clean := strings.ReplaceAll(raw, "\r\n", "")
|
|
idx := strings.Index(clean, "RC")
|
|
code := clean[idx+2 : idx+3] // Extract the response code
|
|
if code != "0" {
|
|
return "", fmt.Errorf("negative response code: %s", clean)
|
|
}
|
|
return "Success: " + clean, nil
|
|
}
|
|
|