def decode(self, packet):
"""Check a parsed packet and figure out if it is an Eddystone Beacon.
If it is , return the relevant data as a dictionary.
Return None, it is not an Eddystone Beacon advertising packet"""
ssu = packet.retrieve("Complete uuids")
found = False
for x in ssu:
if EDDY_UUID in x:
found = True
break
if not found:
return None
found = False
adv = packet.retrieve("Advertised Data")
for x in adv:
luuid = x.retrieve("Service Data uuid")
for uuid in luuid:
if EDDY_UUID == uuid:
found = x
break
if found:
break
if not found:
return None
try:
top = found.retrieve("Adv Payload")[0]
except:
return None
# Rebuild that part of the structure
found.payload.remove(top)
# Now decode
result = {}
data = top.val
etype = aios.EnumByte(
"type",
self.type.val,
{
ESType.uid.value: "Eddystone-UID",
ESType.url.value: "Eddystone-URL",
ESType.tlm.value: "Eddystone-TLM",
ESType.eid.value: "Eddystone-EID",
},
)
data = etype.decode(data)
found.payload.append(etype)
if etype.val == ESType.uid.value:
power = aios.IntByte("tx_power")
data = power.decode(data)
found.payload.append(power)
result["tx_power"] = power.val
nspace = aios.Itself("namespace")
xx = nspace.decode(
data[:10]
) # According to https://github.com/google/eddystone/tree/master/eddystone-uid
data = data[10:]
found.payload.append(nspace)
result["name space"] = nspace.val
nspace = aios.Itself("instance")
xx = nspace.decode(
data[:6]
) # According to https://github.com/google/eddystone/tree/master/eddystone-uid
data = data[6:]
found.payload.append(nspace)
result["instance"] = nspace.val
elif etype.val == ESType.url.value:
power = aios.IntByte("tx_power")
data = power.decode(data)
found.payload.append(power)
result["tx_power"] = power.val
url = aios.EnumByte(
"type",
0,
{
0x00: "http://www.",
0x01: "https://www.",
0x02: "http://",
0x03: "https://",
},
)
data = url.decode(data)
result["url"] = url.strval
for x in data:
if bytes([x]) == b"\x00":
result["url"] += ".com/"
elif bytes([x]) == b"\x01":
result["url"] += ".org/"
elif bytes([x]) == b"\x02":
result["url"] += ".edu/"
elif bytes([x]) == b"\x03":
result["url"] += ".net/"
elif bytes([x]) == b"\x04":
result["url"] += ".info/"
elif bytes([x]) == b"\x05":
result["url"] += ".biz/"
elif bytes([x]) == b"\x06":
result["url"] += ".gov/"
elif bytes([x]) == b"\x07":
result["url"] += ".com"
elif bytes([x]) == b"\x08":
result["url"] += ".org"
elif bytes([x]) == b"\x09":
result["url"] += ".edu"
elif bytes([x]) == b"\x10":
result["url"] += ".net"
elif bytes([x]) == b"\x11":
result["url"] += ".info"
elif bytes([x]) == b"\x12":
result["url"] += ".biz"
elif bytes([x]) == b"\x13":
result["url"] += ".gov"
else:
result["url"] += chr(
x) # x.decode("ascii") #Yep ASCII only
url = aios.String("url")
url.decode(result["url"])
found.payload.append(url)
elif etype.val == ESType.tlm.value:
myinfo = aios.IntByte("version")
data = myinfo.decode(data)
found.payload.append(myinfo)
myinfo = aios.ShortInt("battery")
data = myinfo.decode(data)
result["battery"] = myinfo.val
found.payload.append(myinfo)
myinfo = aios.Float88("temperature")
data = myinfo.decode(data)
found.payload.append(myinfo)
result["temperature"] = myinfo.val
myinfo = aios.LongInt("pdu count")
data = myinfo.decode(data)
found.payload.append(myinfo)
result["pdu count"] = myinfo.val
myinfo = aios.LongInt("uptime")
data = myinfo.decode(data)
found.payload.append(myinfo)
result["uptime"] = myinfo.val * 100 # in msecs
# elif etype.val== ESType.tlm.eid:
else:
result["data"] = data
xx = Itself("data")
xx.decode(data)
found.payload.append(xx)
rssi = packet.retrieve("rssi")
if rssi:
result["rssi"] = rssi[-1].val
mac = packet.retrieve("peer")
if mac:
result["mac address"] = mac[-1].val
return result
def RSL10v3_decode(
packet, RSL10_UUID=bytes.fromhex('53ac89d1ec355ebb84e18dadb5d4db84')):
"""Check a parsed packet and figure out if it is a RSL10V3 Beacon.
If it is , return the relevant data as a dictionary.
Return None, it is not a RSL10V3 Beacon advertising packet"""
found = False
adv = packet.retrieve("Advertised Data")
for x in adv:
luuid = x.retrieve("Service Data uuid")
for uuid in luuid:
if RSL10_UUID == uuid:
found = x
break
if found:
break
if not found:
return None
try:
top = found.retrieve("Adv Payload")[0]
except:
return None
#Rebuild that part of the structure
found.payload.remove(top)
#Now decode
result = {}
data = top.val
print(data.hex())
# temperature
myinfo = aiobs.ShortInt("temperature", endian='little')
data = myinfo.decode(data)
result["temperature"] = myinfo.val / 100
# humidity in percentage
myinfo = aiobs.UShortInt("humidity", endian='little')
data = myinfo.decode(data)
result["humidity"] = myinfo.val / 100
# Pressure
myinfo_lo = aiobs.UShortInt("pressure_lo", endian='little')
data = myinfo_lo.decode(data)
myinfo_hi = aiobs.UIntByte("pressure_hi")
data = myinfo_hi.decode(data)
result["pressure"] = (myinfo_lo.val + myinfo_hi.val * 65536) / 100
# format version, no need to save
myinfo = aiobs.IntByte("version")
data = myinfo.decode(data)
# tilt_x value
myinfo = aiobs.IntByte("tilt_x")
data = myinfo.decode(data)
result["tilt_x"] = myinfo.val
# tilt_y value
myinfo = aiobs.IntByte("tilt_y")
data = myinfo.decode(data)
result["tilt_y"] = myinfo.val
# return RSSI value
rssi = packet.retrieve("rssi")
if rssi:
result["rssi"] = rssi[-1].val
mac = packet.retrieve("peer")
# return MAC address
if mac:
result["mac address"] = mac[-1].val
return result