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Add support for multiple devices and update documentation

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Add support for discovering more than one device on the network, and update
the documentation to describe that.
This commit is contained in:
Matthew Garrett 2016-10-30 14:16:40 -07:00
parent 69afd4ce52
commit 989009e21f
2 changed files with 109 additions and 70 deletions
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154
broadlink/__init__.py
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@ -1,74 +1,95 @@
#!/usr/bin/python
from datetime import datetime
from socket import *
from Crypto.Cipher import AES
import time
import random
import socket
class rm2:
def __init__(self):
self.count = random.randrange(0xffff)
def discover(timeout=None):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(('8.8.8.8', 0)) # connecting to a UDP address doesn't send packets
local_ip_address = s.getsockname()[0]
address = local_ip_address.split('.')
cs = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
cs.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
cs.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
cs.bind(('',0))
port = cs.getsockname()[1]
starttime = time.time()
devices = []
timezone = time.timezone/-3600
packet = bytearray(0x30)
year = datetime.now().year
if timezone < 0:
packet[0x08] = 0xff + timezone - 1
packet[0x09] = 0xff
packet[0x0a] = 0xff
packet[0x0b] = 0xff
else:
packet[0x08] = timezone
packet[0x09] = 0
packet[0x0a] = 0
packet[0x0b] = 0
packet[0x0c] = year & 0xff
packet[0x0d] = year >> 8
packet[0x0e] = datetime.now().minute
packet[0x0f] = datetime.now().hour
subyear = str(year)[2:]
packet[0x10] = int(subyear)
packet[0x11] = datetime.now().isoweekday()
packet[0x12] = datetime.now().day
packet[0x13] = datetime.now().month
packet[0x18] = int(address[0])
packet[0x19] = int(address[1])
packet[0x1a] = int(address[2])
packet[0x1b] = int(address[3])
packet[0x1c] = port & 0xff
packet[0x1d] = port >> 8
packet[0x26] = 6
checksum = 0xbeaf
for i in range(len(packet)):
checksum += packet[i]
checksum = checksum & 0xffff
packet[0x20] = checksum & 0xff
packet[0x21] = checksum >> 8
cs.sendto(packet, ('255.255.255.255', 80))
if timeout is None:
response = cs.recvfrom(1024)
responsepacket = bytearray(response[0])
host = response[1]
mac = responsepacket[0x3a:0x40]
return device(host=host, mac=mac)
else:
while (time.time() - starttime) < timeout:
cs.settimeout(timeout - (time.time() - starttime))
try:
response = cs.recvfrom(1024)
except socket.timeout:
return devices
responsepacket = bytearray(response[0])
host = response[1]
mac = responsepacket[0x3a:0x40]
devices.append(device(host=host, mac=mac))
class device:
def __init__(self, host, mac):
self.host = host
self.mac = mac
self.count = random.randrange(0xffff)
self.key = bytearray([0x09, 0x76, 0x28, 0x34, 0x3f, 0xe9, 0x9e, 0x23, 0x76, 0x5c, 0x15, 0x13, 0xac, 0xcf, 0x8b, 0x02])
self.iv = bytearray([0x56, 0x2e, 0x17, 0x99, 0x6d, 0x09, 0x3d, 0x28, 0xdd, 0xb3, 0xba, 0x69, 0x5a, 0x2e, 0x6f, 0x58])
s = socket(AF_INET, SOCK_DGRAM)
s.connect(('8.8.8.8', 0)) # connecting to a UDP address doesn't send packets
local_ip_address = s.getsockname()[0]
self.address = local_ip_address.split('.')
self.id = bytearray([0, 0, 0, 0])
def discover(self):
self.cs = socket(AF_INET, SOCK_DGRAM)
self.cs.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
self.cs.setsockopt(SOL_SOCKET, SO_BROADCAST, 1)
self.cs.bind(('',0))
self.port = self.cs.getsockname()[1]
timezone = time.timezone/-3600
packet = bytearray(0x30)
year = datetime.now().year
if timezone < 0:
packet[0x08] = 0xff + timezone - 1
packet[0x09] = 0xff
packet[0x0a] = 0xff
packet[0x0b] = 0xff
else:
packet[0x08] = timezone
packet[0x09] = 0
packet[0x0a] = 0
packet[0x0b] = 0
packet[0x0c] = year & 0xff
packet[0x0d] = year >> 8
packet[0x0e] = datetime.now().minute
packet[0x0f] = datetime.now().hour
subyear = str(year)[2:]
packet[0x10] = int(subyear)
packet[0x11] = datetime.now().isoweekday()
packet[0x12] = datetime.now().day
packet[0x13] = datetime.now().month
packet[0x18] = int(self.address[0])
packet[0x19] = int(self.address[1])
packet[0x1a] = int(self.address[2])
packet[0x1b] = int(self.address[3])
packet[0x1c] = self.port & 0xff
packet[0x1d] = self.port >> 8
packet[0x26] = 6
checksum = 0xbeaf
for i in range(len(packet)):
checksum += packet[i]
checksum = checksum & 0xffff
packet[0x20] = checksum & 0xff
packet[0x21] = checksum >> 8
self.cs.sendto(packet, ('255.255.255.255', 80))
response = self.cs.recvfrom(1024)
responsepacket = bytearray(response[0])
self.host = response[1]
self.mac = responsepacket[0x3a:0x40]
self.cs = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.cs.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.cs.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
self.cs.bind(('',0))
def auth(self):
payload = bytearray(0x50)
@ -102,7 +123,7 @@ class rm2:
enc_payload = response[0x38:]
aes = AES.new(str(self.key), AES.MODE_CBC, str(self.iv))
payload = aes.decrypt(str(response[0x38:]))
payload = aes.decrypt(str(enc_payload))
self.id = payload[0x00:0x04]
self.key = payload[0x04:0x14]
@ -232,3 +253,12 @@ class rm2:
aes = AES.new(str(self.key), AES.MODE_CBC, str(self.iv))
payload = aes.decrypt(str(response[0x38:]))
return payload[0x04:]
class rm2(device):
def __init__ (self):
device.__init__(self, None, None)
def discover(self):
dev = discover()
self.host = dev.host
self.mac = dev.mac