feat(vehicle): add support for LeapMotor API#29666
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- Remove EnsureAuth (dead code, had TOCTOU race) - Make addAuthHeaders void (return value was always ignored) - Drop Python-style inline comments in deriveP12Password - Collapse SM4 section divider to single comment line
ngehrsitz
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May 12, 2026
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I tested it briefly and it works so far 👍
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| // newMTLSClient creates an http.Client with optional client cert and TLS verification disabled. | ||
| // Leapmotor's API servers use self-signed certificates. | ||
| func newMTLSClient(cert *tls.Certificate) *http.Client { | ||
| tlsCfg := &tls.Config{InsecureSkipVerify: true} //nolint:gosec |
| } | ||
| return float64(*res.TotalMileage), nil | ||
| } | ||
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Looking at https://github.com/markoceri/leapmotor-api we can also implement VehicleClimater,VehiclePosition,SocLimiter and even PhaseDescriber for the 1P only models like T03
| } | ||
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| func init() { | ||
| registry.Add("leapmotor", NewLeapmotorFromConfig) |
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You need templates/definition/vehicle/leapmotor.yaml otherwise it won´t be shown in the UI
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| func apiPost(client *http.Client, fullURL string, headers map[string]string, body string) ([]byte, error) { | ||
| req, err := http.NewRequest(http.MethodPost, fullURL, strings.NewReader(body)) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| for k, v := range headers { | ||
| req.Header.Set(k, v) | ||
| } | ||
| resp, err := client.Do(req) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| defer resp.Body.Close() | ||
| return io.ReadAll(resp.Body) | ||
| } |
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This could be substituted with request.DoBody()
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| // parseEnvelope decodes the API envelope, returning Data or an error for non-zero codes. | ||
| func parseEnvelope[T any](body []byte) (T, error) { | ||
| var res apiEnvelope[T] | ||
| var zero T | ||
| if err := json.Unmarshal(body, &res); err != nil { | ||
| return zero, err | ||
| } | ||
| if res.Code != 0 { | ||
| return zero, fmt.Errorf("api %d: %s", res.Code, res.Message) | ||
| } | ||
| return res.Data, nil | ||
| } |
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This is always used after apiPost() or do() which is mostly the same thing. I would either combine them, or even better reuse the shared functionality for decoding JSON.
- Rename AppCert/AppKey → auto-download app certs from markoceri/leapmotor-certs
(removes file path requirement; certs fetched in parallel via errgroup)
- Replace custom SM4 impl with github.com/emmansun/gmsm (key recovered from
APK round key schedule); cipher block initialised once at package init
- Replace manual JWT parsing with golang-jwt/jwt in deriveSessionDeviceID
- Stable deviceID: SHA256(email)[:16] replaces per-restart random bytes
- NewIdentity accepts PEM bytes instead of file paths
- apiPost uses request.Helper.DoBody (adds HTTP status code checking)
- Add postAndParse[T] helper combining POST + envelope decode
- Add VehicleClimater, VehiclePosition, SocLimiter interfaces
- Add templates/definition/vehicle/leapmotor.yaml for UI discovery
- Use hex.EncodeToString instead of fmt.Sprintf("%x")
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Summary
Adds Leapmotor cloud API support (same API the official app uses). The API is unofficial but community-documented:
App certs download automatically from markoceri/leapmotor-certs on startup — no files to provide.
Supported data
SoC, charge state, range, odometer, finish time, climate state, GPS position, SoC limit.
Caveats
Status
Not tested on a real car yet. Draft until someone validates it on a T03, B10, or C10.
Docs
evcc-io/docs#1049
References