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Josh Deprez 2023-01-07 21:22:19 +11:00
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@ -6,57 +6,185 @@ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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124
plug.go
View file

@ -1,3 +1,19 @@
/*
Copyright 2023 Josh Deprez
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
// Package plugctl provides an API for controlling Kasa smart home switches.
package plugctl
@ -10,18 +26,70 @@ import (
"net"
)
const (
reqTurnOn = `{"system":{"set_relay_state":{"state":1}}}`
reqTurnOff = `{"system":{"set_relay_state":{"state":0}}}`
reqGetSysinfo = `{"system":{"get_sysinfo":null}}`
reqGetEMeter = `{"emeter":{"get_realtime":null}}`
)
// const reqGetEMeter = `{"emeter":{"get_realtime":null}}`
// Plug provides an API for a single Kasa smart home plug or switch.
type Plug struct {
Addr string
}
// SetRelayState turns the plug on or off.
func (p *Plug) SetRelayState(on bool) error {
state := 0
if on {
state = 1
}
req := fmt.Sprintf(`{"system":{"set_relay_state":{"state":%d}}}`, state)
resp, err := p.roundTrip(req)
if err != nil {
return err
}
if resp.System == nil {
return fmt.Errorf("nil system in response")
}
if resp.System.SetRelayState == nil {
return fmt.Errorf("nil set_relay_state in system")
}
if errCode := resp.System.SetRelayState.ErrCode; errCode != 0 {
return fmt.Errorf("plug errcode %d", errCode)
}
return nil
}
// TurnOn turns the plug on.
func (p *Plug) TurnOn() error {
return p.SetRelayState(true)
}
// TurnOff turns the plug off.
func (p *Plug) TurnOff() error {
return p.SetRelayState(false)
}
// SysInfo gets the system information from the plug.
func (p *Plug) SysInfo() (*SysInfo, error) {
resp, err := p.roundTrip(`{"system":{"get_sysinfo":null}}`)
if err != nil {
return nil, err
}
if resp.System == nil {
return nil, fmt.Errorf("nil system in response")
}
if resp.System.GetSysInfo == nil {
return nil, fmt.Errorf("nil get_sysinfo in system")
}
return resp.System.GetSysInfo, nil
}
// RelayState reports whether the plug is currently on.
func (p *Plug) RelayState() (bool, error) {
si, err := p.SysInfo()
if err != nil {
return false, err
}
return si.RelayState == 1, nil
}
func (p *Plug) roundTrip(req string) (*response, error) {
conn, err := net.Dial("tcp", p.Addr)
if err != nil {
@ -110,53 +178,23 @@ func (e *encryptWriter) Write(b []byte) (int, error) {
return e.w.Write(eb)
}
/*
"sw_ver": "1.0.3 Build 210506 Rel.105435",
"hw_ver": "1.0",
"model": "KP105(AU)",
"deviceId": "8006CF0E89296D2A5BFBDE11C844BB2B1E2D2B7C",
"oemId": "EAB15315847573797920EFE7E9000562",
"hwId": "120EF751A1A4F170831E6C1F57D97B38",
"rssi": -58,
"longitude_i": 1473005,
"latitude_i": -428429,
"alias": "Car charger",
"status": "new",
"mic_type": "IOT.SMARTPLUGSWITCH",
"feature": "TIM",
"mac": "00:5F:67:01:A5:50",
"updating": 0,
"led_off": 0,
"obd_src": "tplink",
"relay_state": 0,
"on_time": 0,
"active_mode": "schedule",
"icon_hash": "",
"dev_name": "Smart Wi-Fi Plug",
"next_action": {
"type": -1
},
"ntc_state": 0,
"err_code": 0
*/
type response struct {
System *systemMsg `json:"system,omitempty"`
EMeter *eMeterMsg `json:"emeter,omitempty"`
// EMeter *eMeterMsg `json:"emeter,omitempty"`
}
type eMeterMsg struct {
GetRealtime *getRealtimeMsg `json:"get_realtime"`
}
// type eMeterMsg struct {
// GetRealtime *getRealtimeMsg `json:"get_realtime"`
// }
type getRealtimeMsg struct{}
// type getRealtimeMsg struct{}
type systemMsg struct {
GetSysInfo *getSysInfoMsg `json:"get_sysinfo"`
GetSysInfo *SysInfo `json:"get_sysinfo"`
SetRelayState *setRelayStateMsg `json:"set_relay_state,omitempty"`
}
type getSysInfoMsg struct {
type SysInfo struct {
SWVer string `json:"sw_ver,omitempty"` // e.g. "1.0.3 Build 210506 Rel.105435",
HWVer string `json:"hw_ver,omitempty"` // e.g. "1.0",
Model string `json:"model,omitempty"` // e.g. "KP105(AU)",

44
plug_test.go
View file

@ -1,3 +1,19 @@
/*
Copyright 2023 Josh Deprez
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package plugctl
import (
@ -64,13 +80,33 @@ func TestEncryptDecrypt(t *testing.T) {
}
func TestReadStatusFromRealPlug(t *testing.T) {
//t.Skip("Hits the real device")
t.Skip("Hits the real device")
p := Plug{Addr: "192.168.86.10:9999"}
resp, err := p.roundTrip(reqGetSysinfo)
si, err := p.SysInfo()
if err != nil {
t.Errorf("Plug.roundTrip(%v) error = %v", reqGetSysinfo, err)
t.Errorf("Plug.SysInfo() error = %v", err)
}
t.Logf("SysInfo = %#v", *si)
}
func TestTurnOn(t *testing.T) {
t.Skip("Hits the real device")
p := Plug{Addr: "192.168.86.10:9999"}
if err := p.TurnOn(); err != nil {
t.Errorf("Plug.TurnOn() error = %v", err)
}
}
func TestTurnOff(t *testing.T) {
t.Skip("Hits the real device")
p := Plug{Addr: "192.168.86.10:9999"}
if err := p.TurnOff(); err != nil {
t.Errorf("Plug.TurnOff() error = %v", err)
}
t.Logf("Plug.roundTrip(%v) = %#v", reqGetSysinfo, *resp.System.GetSysInfo)
}