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scanForResources.py
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scanForResources.py
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# Scan for SGS Resources
import requests
import json
import ipaddress
import subprocess
import datetime
import traceback
import sys
import time
import config
import readJSON
import state
import socket
import pclogging
def sendCommandToWireless(myIP, myCommand):
myURL = 'http://'+str(myIP)+'/'+myCommand
try:
if (config.SWDEBUG):
print("myURL=", myURL)
req = requests.get(myURL,timeout=5)
returnJSON = req.json()
except Exception:
#traceback.print_exc()
return {}
return returnJSON
def sendNewNameToUnit(ipaddress, newName):
myCommand = "setStationName?params=admin,"+newName
sendCommandToWireless(ipaddress, myCommand)
def checkDeviceStatus(id):
wirelessJSON = readJSON.getJSONValue("WirelessDeviceJSON")
for single in wirelessJSON:
ipAddress = single["ipaddress"]
myID = single["id"]
if (str(id).replace(" ","") == str(myID)):
myJSON = checkForDeviceFromIP(ipAddress)
if (len(myJSON) > 0):
#pclogging.systemlog(config.INFO,"Wireless Device ID %s Active" %(myID))
return True
else:
#pclogging.systemlog(config.INFO,"Wireless Device ID %s Inactive" %(myID))
return False
return False
def isDeviceActive(id):
try:
if (state.deviceStatus[id] == True):
return True
else:
return False
except:
return False
def findWirelessExtenders():
IPAddr = subprocess.check_output(['hostname', '-I'])
IPAddr = IPAddr.decode()
IPAddr = IPAddr.split(" ")
print("Your Computer IP Address is:" + IPAddr[0])
myNetIP = IPAddr[0].split(".")
myNetIP = myNetIP[0]+"."+myNetIP[1]+"."+myNetIP[2]+".0"
CIDR = ipaddress.IPv4Network(myNetIP+"/24")
print("Your Computer CIDR is:", CIDR)
now = datetime.datetime.now()
current_time = now.strftime("%H:%M:%S")
print("Start Time =", str(now))
returnJSON = []
for ip in ipaddress.IPv4Network(CIDR):
print ("checking IP:", str(ip))
JSON = checkForDeviceFromIP(ip)
if len(JSON) != 0:
# check for SGS JSON
#print("JSON[1]=", JSON[1])
# put in Hudroponics Data
DumpedJSON = json.dumps(JSON[1])
DumpedJSON = json.loads(DumpedJSON)
DumpedJSON = json.loads(DumpedJSON)
#print("DumpedJOSN =", DumpedJSON)
try:
if (len(DumpedJSON["id"]) == 4):
if (len(DumpedJSON["return_string"]) > 0):
print ("SGS Wireless Extender Found. ID=", DumpedJSON["id"])
returnJSON.append(JSON)
except:
#traceback.print_exc()
pass
now = datetime.datetime.now()
current_time = now.strftime("%H:%M:%S")
print("Finish Time =", str(now))
print ("returnJSON", returnJSON)
return returnJSON
def fixWirelessExtenders():
IPAddr = subprocess.check_output(['hostname', '-I'])
IPAddr = IPAddr.decode()
IPAddr = IPAddr.split(" ")
print("Your Computer IP Address is:" + IPAddr[0])
myNetIP = IPAddr[0].split(".")
myNetIP = myNetIP[0]+"."+myNetIP[1]+"."+myNetIP[2]+".0"
CIDR = ipaddress.IPv4Network(myNetIP+"/24")
print("Your Computer CIDR is:", CIDR)
now = datetime.datetime.now()
current_time = now.strftime("%H:%M:%S")
print("Start Time =", str(now))
returnJSON = []
for ip in ipaddress.IPv4Network(CIDR):
print ("checking IP:", str(ip))
JSON = checkForDeviceFromIP(ip)
#print("JSON=",JSON)
if len(JSON) != 0:
# check for SGS JSON
#DumpedJSON = json.dumps(JSON)
#DumpedJSON = json.loads(DumpedJSON)
#DumpedJSON = json.loads(DumpedJSON)
DumpedJSON = JSON
#print("DumpedJSON =", DumpedJSON)
try:
if (len(DumpedJSON["id"]) == 4):
if (len(DumpedJSON["return_string"]) > 0):
print ("SGS Wireless Extender Found. ID=", DumpedJSON["id"])
print("check for wirelsssJSON match - if so update IP")
changed = checkAndFixIPMatch(DumpedJSON)
if (changed == True):
print("IP Number Fixed for Extender")
else:
print("Extender %s IP Correct" % DumpedJSON['id'])
except:
#traceback.print_exc()
pass
now = datetime.datetime.now()
current_time = now.strftime("%H:%M:%S")
print("Finish Time =", str(now))
return
def checkAndFixIPMatch(checkJSON):
changed = False
wirelessJSON = readJSON.getJSONValue("WirelessDeviceJSON")
#print("wirelessJSON Before = ", wirelessJSON)
for single in wirelessJSON:
if (single['id'] == checkJSON['id']):
if (single['ipaddress'] == checkJSON['ipaddress']):
changed = False
else:
changed = True
single['ipaddress'] = checkJSON['ipaddress']
break
#print("changed=", changed)
#print("wirelessJSON After = ", wirelessJSON)
if (changed == True):
# replace wirelessJSON on JSON and write to file
config.JSONData['WirelessDeviceJSON'] = wirelessJSON
readJSON.saveJSON()
#print ("config.JSONData=", config.JSONData, end='')
pass
return changed
def get_ip_address():
ip_address = '';
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(("8.8.8.8",80))
ip_address = s.getsockname()[0]
s.close()
return ip_address
def checkForDeviceFromIP(ip):
myMQTTIP = get_ip_address()
myMQTTPort = 1883
myURL = 'http://'+str(ip)+'/checkForID?params='+myMQTTIP+','+str(myMQTTPort)
completeResponse = subprocess.run(['ping','-c1', '-w 1 ',str(ip)],stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
#response = subprocess.run(['ping','-c1', '-W 1',str(ip)],stdout=None, stderr=None)
#print("completeResponse.returncode =", completeResponse.returncode)
#print("ipaddress=",ip)
returnJSON = {}
if completeResponse.returncode == 0:
try:
req = requests.get(myURL,timeout=5)
returnJSON = req.json()
except Exception:
# check again before inactive decision
completeResponse = subprocess.run(['ping','-c1', '-w 1 ',str(ip)],stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
#response = subprocess.run(['ping','-c1', '-W 1',str(ip)],stdout=None, stderr=None)
#print("completeResponse.returncode =", completeResponse.returncode)
#print("ipaddress=",ip)
returnJSON = {}
if completeResponse.returncode == 0:
try:
req = requests.get(myURL,timeout=5)
returnJSON = req.json()
except Exception:
#traceback.print_exc()
return {}
return returnJSON
def updateDeviceStatus(Log):
#state.deviceStatus = {}
wirelessJSON = readJSON.getJSONValue("WirelessDeviceJSON")
for single in wirelessJSON:
myID = str(single["id"])
deviceResult = checkDeviceStatus(single["id"])
if (deviceResult == False): # check again if false
deviceResult = checkDeviceStatus(single["id"])
if (deviceResult):
try:
if (state.deviceStatus[str(single['id'])] == False):
pclogging.systemlog(config.INFO,"Wireless Device ID %s Reactivated" %(myID))
except:
#traceback.print_exc()
pass
if (Log):
pclogging.systemlog(config.INFO,"Wireless Device ID %s Active" %(myID))
state.deviceStatus[str(single["id"])] = True
else:
try:
if (state.deviceStatus[str(single['id'])] == True):
pclogging.systemlog(config.INFO,"Wireless Device ID %s has gone Inactive" %(myID))
except:
#traceback.print_exc()
pass
state.deviceStatus[str(single["id"])] = False
if (Log):
pclogging.systemlog(config.INFO,"Wireless Device ID %s is Inactive" %(myID))
state.deviceStatus[str(single["id"])] = False
def getNameForID(myID):
for single in wirelessJSON:
if (str(myID).replace(" ", "") == str(single["id"]).replace(" ", "")):
return (single["name"])
return "Unknown Device"