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invraw/proxy.py
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322 lines
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Python
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import asyncio
import struct
import json
import os
import datetime
from itertools import cycle
from aiohttp import web
from collections import deque
LISTEN_PORT = int(os.getenv("LISTEN_PORT", "5279"))
GROWATT_HOST = os.getenv("GROWATT_HOST", "server.growatt.com")
GROWATT_PORT = int(os.getenv("GROWATT_PORT", "5279"))
WEB_PORT = int(os.getenv("WEB_PORT", "8080"))
MAX_PACKETS = int(os.getenv("MAX_PACKETS", "500"))
packets = deque(maxlen=MAX_PACKETS)
sse_queues = []
# ── Growatt V2 decryption ────────────────────────────────────────────────────
_MASK = [ord(c) for c in "Growatt"] # [71,114,111,119,97,116,116]
def decrypt_payload(data: bytes) -> str:
unscrambled = list(data[:8])
for i, j in zip(range(len(data) - 8), cycle(range(7))):
unscrambled.append(data[i + 8] ^ _MASK[j])
return "".join(f"{b:02x}" for b in unscrambled)
# ── SPF field layouts ────────────────────────────────────────────────────────
# "value" = position in hex string (byte_offset * 2)
# "length" = bytes → hex chars = length*2
_SPF05 = {
"datalogserial": {"v":16, "l":10, "t":"text", "lbl":"Datalogger serial"},
"pvserial": {"v":36, "l":10, "t":"text", "lbl":"Inverter serial"},
"pvstatus": {"v":78, "l":2, "d":1, "u":"", "cat":"status", "lbl":"Status"},
"vpv1": {"v":82, "l":2, "d":10, "u":"V", "cat":"solar", "lbl":"PV1 Tension"},
"vpv2": {"v":86, "l":2, "d":10, "u":"V", "cat":"solar", "lbl":"PV2 Tension"},
"ppv1": {"v":90, "l":4, "d":10, "u":"W", "cat":"solar", "lbl":"PV1 Puissance"},
"ppv2": {"v":98, "l":4, "d":10, "u":"W", "cat":"solar", "lbl":"PV2 Puissance"},
"buck1curr": {"v":106, "l":2, "d":10, "u":"A", "cat":"solar", "lbl":"PV1 Courant"},
"buck2curr": {"v":110, "l":2, "d":10, "u":"A", "cat":"solar", "lbl":"PV2 Courant"},
"op_watt": {"v":114, "l":4, "d":10, "u":"W", "cat":"output", "lbl":"Puissance sortie"},
"op_va": {"v":122, "l":4, "d":10, "u":"VA", "cat":"output", "lbl":"VA sortie"},
"acchr_watt": {"v":130, "l":4, "d":10, "u":"W", "cat":"grid", "lbl":"Charge AC (W)"},
"bat_Volt": {"v":146, "l":2, "d":100, "u":"V", "cat":"battery", "lbl":"Tension batterie"},
"batterySoc": {"v":150, "l":2, "d":1, "u":"%", "cat":"battery", "lbl":"SOC batterie"},
"bus_volt": {"v":154, "l":2, "d":10, "u":"V", "cat":"output", "lbl":"Tension bus"},
"grid_volt": {"v":158, "l":2, "d":10, "u":"V", "cat":"grid", "lbl":"Tension réseau"},
"line_freq": {"v":162, "l":2, "d":100, "u":"Hz", "cat":"grid", "lbl":"Fréq. réseau"},
"outputvolt": {"v":166, "l":2, "d":10, "u":"V", "cat":"output", "lbl":"Tension sortie"},
"outputfreq": {"v":170, "l":2, "d":100, "u":"Hz", "cat":"output", "lbl":"Fréq. sortie"},
"invtemp": {"v":178, "l":2, "d":10, "u":"°C", "cat":"temp", "lbl":"Temp. onduleur"},
"dcdctemp": {"v":182, "l":2, "d":10, "u":"°C", "cat":"temp", "lbl":"Temp. DC/DC"},
"loadpercent": {"v":186, "l":2, "d":10, "u":"%", "cat":"output", "lbl":"Charge sortie"},
"OP_Curr": {"v":214, "l":2, "d":10, "u":"A", "cat":"output", "lbl":"Courant sortie"},
"Inv_Curr": {"v":218, "l":2, "d":10, "u":"A", "cat":"grid", "lbl":"Courant réseau"},
"AC_InWatt": {"v":222, "l":4, "d":10, "u":"W", "cat":"grid", "lbl":"Puissance entrée AC"},
"AC_InVA": {"v":230, "l":4, "d":10, "u":"VA", "cat":"grid", "lbl":"VA entrée AC"},
"faultBit": {"v":238, "l":2, "d":1, "u":"", "cat":"status", "lbl":"Bits fautes"},
"warningBit": {"v":242, "l":2, "d":1, "u":"", "cat":"status", "lbl":"Bits alertes"},
"pvenergytoday": {"v":278, "l":4, "d":10, "u":"kWh", "cat":"energy", "lbl":"Énergie aujourd'hui"},
"pvenergytotal": {"v":286, "l":4, "d":10, "u":"kWh", "cat":"energy", "lbl":"Énergie totale"},
"eacCharToday": {"v":310, "l":4, "d":10, "u":"kWh", "cat":"energy", "lbl":"Charge AC auj."},
"eacCharTotal": {"v":318, "l":4, "d":10, "u":"kWh", "cat":"energy", "lbl":"Charge AC totale"},
"ebatDischarToday": {"v":326,"l":4,"d":10, "u":"kWh", "cat":"energy", "lbl":"Déch. batterie auj."},
"ebatDischarTotal": {"v":334,"l":4,"d":10, "u":"kWh", "cat":"energy", "lbl":"Déch. batterie totale"},
"eacDischarToday": {"v":342,"l":4,"d":10, "u":"kWh", "cat":"energy", "lbl":"Déch. AC auj."},
"eacDischarTotal": {"v":350,"l":4,"d":10, "u":"kWh", "cat":"energy", "lbl":"Déch. AC totale"},
"ACCharCurr": {"v":358, "l":2, "d":10, "u":"A", "cat":"battery", "lbl":"Courant charge AC"},
"ACDischarWatt": {"v":362, "l":4, "d":10, "u":"W", "cat":"grid", "lbl":"Décharge AC (W)"},
"buck1_ntc": {"v":206, "l":2, "d":10, "u":"°C", "cat":"temp", "lbl":"Temp. Buck1"},
"buck2_ntc": {"v":210, "l":2, "d":10, "u":"°C", "cat":"temp", "lbl":"Temp. Buck2"},
"BatDischarWatt":{"v":378, "l":4, "d":10, "u":"W", "cat":"battery", "lbl":"Décharge batterie"},
"BatWatt": {"v":394, "l":4, "d":10, "u":"W", "cat":"battery", "lbl":"Puiss. batterie", "signed":True},
}
_SPF06 = {
"datalogserial": {"v":16, "l":10, "t":"text", "lbl":"Datalogger serial"},
"pvserial": {"v":76, "l":10, "t":"text", "lbl":"Inverter serial"},
"pvstatus": {"v":158, "l":2, "d":1, "u":"", "cat":"status", "lbl":"Status"},
"vpv1": {"v":162, "l":2, "d":10, "u":"V", "cat":"solar", "lbl":"PV1 Tension"},
"vpv2": {"v":166, "l":2, "d":10, "u":"V", "cat":"solar", "lbl":"PV2 Tension"},
"ppv1": {"v":170, "l":4, "d":10, "u":"W", "cat":"solar", "lbl":"PV1 Puissance"},
"ppv2": {"v":178, "l":4, "d":10, "u":"W", "cat":"solar", "lbl":"PV2 Puissance"},
"buck1curr": {"v":186, "l":2, "d":10, "u":"A", "cat":"solar", "lbl":"PV1 Courant"},
"buck2curr": {"v":190, "l":2, "d":10, "u":"A", "cat":"solar", "lbl":"PV2 Courant"},
"op_watt": {"v":194, "l":4, "d":10, "u":"W", "cat":"output", "lbl":"Puissance sortie"},
"op_va": {"v":204, "l":4, "d":10, "u":"VA", "cat":"output", "lbl":"VA sortie"},
"acchr_watt": {"v":210, "l":4, "d":10, "u":"W", "cat":"battery", "lbl":"Charge batterie (AC)"},
"acchr_VA": {"v":218, "l":4, "d":10, "u":"VA", "cat":"battery", "lbl":"Charge batterie VA"},
"bat_Volt": {"v":226, "l":2, "d":100, "u":"V", "cat":"battery", "lbl":"Tension batterie"},
"batterySoc": {"v":230, "l":2, "d":1, "u":"%", "cat":"battery", "lbl":"SOC batterie"},
"bus_volt": {"v":234, "l":2, "d":10, "u":"V", "cat":"output", "lbl":"Tension bus"},
"grid_volt": {"v":238, "l":2, "d":10, "u":"V", "cat":"grid", "lbl":"Tension réseau"},
"line_freq": {"v":242, "l":2, "d":100, "u":"Hz", "cat":"grid", "lbl":"Fréq. réseau"},
"outputvolt": {"v":246, "l":2, "d":10, "u":"V", "cat":"output", "lbl":"Tension sortie"},
"outputfreq": {"v":250, "l":2, "d":100, "u":"Hz", "cat":"output", "lbl":"Fréq. sortie"},
"invtemp": {"v":258, "l":2, "d":10, "u":"°C", "cat":"temp", "lbl":"Temp. onduleur"},
"dcdctemp": {"v":262, "l":2, "d":10, "u":"°C", "cat":"temp", "lbl":"Temp. DC/DC"},
"loadpercent": {"v":266, "l":2, "d":10, "u":"%", "cat":"output", "lbl":"Charge sortie"},
"buck1_ntc": {"v":286, "l":2, "d":10, "u":"°C", "cat":"temp", "lbl":"Temp. Buck1"},
"buck2_ntc": {"v":290, "l":2, "d":10, "u":"°C", "cat":"temp", "lbl":"Temp. Buck2"},
"OP_Curr": {"v":294, "l":2, "d":10, "u":"A", "cat":"output", "lbl":"Courant sortie"},
"Inv_Curr": {"v":298, "l":2, "d":10, "u":"A", "cat":"grid", "lbl":"Courant réseau"},
"AC_InWatt": {"v":302, "l":4, "d":10, "u":"W", "cat":"grid", "lbl":"Puissance entrée AC"},
"AC_InVA": {"v":310, "l":4, "d":10, "u":"VA", "cat":"grid", "lbl":"VA entrée AC"},
"faultBit": {"v":318, "l":2, "d":1, "u":"", "cat":"status", "lbl":"Bits fautes"},
"warningBit": {"v":322, "l":2, "d":1, "u":"", "cat":"status", "lbl":"Bits alertes"},
"pvenergytoday": {"v":358, "l":4, "d":10, "u":"kWh", "cat":"energy", "lbl":"Énergie aujourd'hui"},
"pvenergytotal": {"v":366, "l":4, "d":10, "u":"kWh", "cat":"energy", "lbl":"Énergie totale"},
"eacCharToday": {"v":390, "l":4, "d":10, "u":"kWh", "cat":"energy", "lbl":"Charge AC auj."},
"eacCharTotal": {"v":398, "l":4, "d":10, "u":"kWh", "cat":"energy", "lbl":"Charge AC totale"},
"ebatDischarToday": {"v":406,"l":4,"d":10, "u":"kWh", "cat":"energy", "lbl":"Déch. batterie auj."},
"ebatDischarTotal": {"v":414,"l":4,"d":10, "u":"kWh", "cat":"energy", "lbl":"Déch. batterie totale"},
"eacDischarToday": {"v":422,"l":4,"d":10, "u":"kWh", "cat":"energy", "lbl":"Déch. AC auj."},
"eacDischarTotal": {"v":430,"l":4,"d":10, "u":"kWh", "cat":"energy", "lbl":"Déch. AC totale"},
"ACCharCurr": {"v":438, "l":2, "d":10, "u":"A", "cat":"battery", "lbl":"Courant charge AC"},
"ACDischarWatt": {"v":442, "l":4, "d":10, "u":"W", "cat":"grid", "lbl":"Puiss. déch. AC"},
"BatDischarWatt":{"v":458, "l":4, "d":10, "u":"W", "cat":"battery", "lbl":"Puiss. déch. batterie"},
"BatWatt": {"v":474, "l":4, "d":10, "u":"W", "cat":"battery", "lbl":"Puiss. batterie", "signed":True},
}
_STATUS = {0: "En attente", 1: "Normal", 2: "Défaut"}
_CAT_ORDER = ["solar","battery","grid","output","temp","energy","status"]
_CAT_LABELS = {
"solar": "Panneaux solaires",
"battery": "Batterie",
"grid": "Réseau",
"output": "Sortie",
"temp": "Température",
"energy": "Énergie",
"status": "Statut",
}
def _extract(hex_str, spec):
v = spec["v"]; l = spec["l"]
chunk = hex_str[v : v + l * 2]
if not chunk or len(chunk) < l * 2:
return None
if spec.get("t") == "text":
return bytes.fromhex(chunk).decode("utf-8", errors="replace").strip("\x00 ")
raw = int(chunk, 16)
if spec.get("signed"):
nbits = l * 8
if raw >= (1 << (nbits - 1)):
raw -= (1 << nbits)
d = spec.get("d", 1)
return round(raw / d, 2) if d != 1 else raw
def decode_spf(data: bytes):
if len(data) < 8:
return None
hdr = data[:8].hex()
protocol = hdr[6:8]
cmd = hdr[14:16]
# Only data records (type 04 live, 50 buffered)
if cmd not in ("04", "50"):
return None
hex_str = decrypt_payload(data) if protocol in ("05","06") else data.hex()
layout = "T06NNNNSPF" if protocol == "06" else "T05NNNNSPF"
fields = _SPF06 if protocol == "06" else _SPF05
out = {"_layout": layout, "_buffered": cmd == "50"}
for key, spec in fields.items():
try:
val = _extract(hex_str, spec)
if val is None:
continue
if spec.get("t") == "text":
out[key] = {"text": val, "lbl": spec["lbl"], "cat": "id"}
else:
entry = {
"value": val, "unit": spec.get("u",""),
"lbl": spec["lbl"], "cat": spec.get("cat","other"),
}
if key == "pvstatus":
entry["status_name"] = _STATUS.get(val, str(val))
if key == "BatWatt":
entry["note"] = "négatif = en charge"
out[key] = entry
except Exception:
pass
return out
# ── Packet header decoder ─────────────────────────────────────────────────────
PROTOCOL_NAMES = {"02":"Plain","05":"Encrypted V2","06":"Encrypted V2 (ack)"}
CMD_NAMES = {
"03":"Ping/Hello","04":"Data (live)","16":"Data (realtime)",
"18":"Configure","19":"Data (buffered)","50":"Data (buffered)",
}
def decode_header(data):
if len(data) < 8:
return None
hdr = data[:8].hex()
protocol = hdr[6:8]
payload_len = struct.unpack(">H", data[4:6])[0]
rec_type = hdr[12:16]; cmd = hdr[14:16]
return {
"raw_header": hdr, "device_prefix": hdr[0:8],
"protocol": protocol, "protocol_name": PROTOCOL_NAMES.get(protocol, f"Unknown ({protocol})"),
"payload_len": payload_len, "rec_type": rec_type, "cmd": cmd,
"cmd_name": CMD_NAMES.get(cmd, f"Unknown (0x{cmd})"),
}
def hex_dump(data, cols=16):
lines = []
for i in range(0, len(data), cols):
chunk = data[i:i+cols]
hex_part = " ".join(f"{b:02x}" for b in chunk)
asc_part = "".join(chr(b) if 32 <= b < 127 else "." for b in chunk)
lines.append(f"{i:04x} {hex_part:<{cols*3}} {asc_part}")
return "\n".join(lines)
# ── Proxy core ────────────────────────────────────────────────────────────────
async def log_packet(direction, data):
ts = datetime.datetime.now().isoformat(timespec="milliseconds")
hdr = decode_header(data)
decoded = None
if direction == "inverter→cloud":
try: decoded = decode_spf(data)
except Exception: pass
entry = {
"id": len(packets), "ts": ts, "direction": direction,
"size": len(data), "header": hdr,
"hex_dump": hex_dump(data), "raw_hex": data.hex(),
"decoded": decoded,
}
packets.append(entry)
try:
msg = json.dumps(entry)
except Exception:
msg = json.dumps({k: v for k, v in entry.items() if k != "decoded"})
for q in list(sse_queues):
await q.put(msg)
if decoded:
import ha_mqtt
ha_mqtt.publish(decoded)
async def pipe(reader, writer, direction):
try:
while True:
data = await reader.read(65536)
if not data: break
asyncio.ensure_future(log_packet(direction, data))
writer.write(data)
await writer.drain()
except Exception: pass
finally:
try: writer.close()
except Exception: pass
async def handle_inverter(inv_reader, inv_writer):
peer = inv_writer.get_extra_info("peername")
print(f"[+] Connected: {peer}", flush=True)
try:
cloud_reader, cloud_writer = await asyncio.open_connection(GROWATT_HOST, GROWATT_PORT)
await asyncio.gather(
pipe(inv_reader, cloud_writer, "inverter→cloud"),
pipe(cloud_reader, inv_writer, "cloud→inverter"),
)
except Exception as e:
print(f"[!] Error: {e}", flush=True)
finally:
try: inv_writer.close()
except Exception: pass
print(f"[-] Disconnected: {peer}", flush=True)
# ── Web handlers ──────────────────────────────────────────────────────────────
async def index(request):
with open("/app/templates/index.html") as f: html = f.read()
return web.Response(text=html, content_type="text/html")
async def api_packets(request):
return web.json_response(list(packets))
async def api_clear(request):
packets.clear()
return web.json_response({"ok": True})
async def sse_stream(request):
resp = web.StreamResponse(headers={
"Content-Type": "text/event-stream",
"Cache-Control": "no-cache",
"X-Accel-Buffering": "no",
})
await resp.prepare(request)
q = asyncio.Queue()
sse_queues.append(q)
try:
await resp.write(b": connected\n\n")
while True:
msg = await q.get()
await resp.write(f"data: {msg}\n\n".encode())
except Exception: pass
finally:
if q in sse_queues: sse_queues.remove(q)
return resp
async def main():
tcp = await asyncio.start_server(handle_inverter, "0.0.0.0", LISTEN_PORT)
print(f"[invraw] TCP proxy :{LISTEN_PORT} → {GROWATT_HOST}:{GROWATT_PORT}", flush=True)
app = web.Application()
app.router.add_get("/", index)
app.router.add_get("/api/packets", api_packets)
app.router.add_post("/api/clear", api_clear)
app.router.add_get("/sse", sse_stream)
runner = web.AppRunner(app)
await runner.setup()
await web.TCPSite(runner, "0.0.0.0", WEB_PORT).start()
print(f"[invraw] Web UI http://0.0.0.0:{WEB_PORT}", flush=True)
async with tcp:
await tcp.serve_forever()
if __name__ == "__main__":
asyncio.run(main())
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