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start.py
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start.py
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#By Alberto Galera
import codecs
import json
import psutil
import hashlib
import time
import socket
from struct import pack, unpack
from threading import Thread
#import os
import os.path
#################################### Globals ####################################
url_file_location = "/var/log/pi-py-stats.json"
generate_time = 10*60 # seconds
#################################### Functions network ####################################
def recvpackage(socket_cliente,size_package):
package = socket_cliente.recv(int(size_package))
if (len(package) != size_package):
#fragment buffer
Esperando = True
while Esperando:
if (len(package) != size_package):
package = package + socket_cliente.recv(size_package - len(package))
if (package == ""):
print "conexion broken"
break
else:
Esperando = False
return package
def sendfile(socket_cliente, datos_cliente,url_file):
f = open(str(url_file), 'rb')
size = os.path.getsize(str(url_file))
print size
temp = 0
print "client ", datos_cliente," recv render"
#le mando el tamanio del archivo
socket_cliente.send(pack('d',size))
while temp < size:
if (temp+ 1496 >= size):
size_package = size - temp
#print "entra"
else:
size_package = 1496
#print "no entra"
data = f.read(size_package)#[temp:(temp+size_package)]
package = pack(str(size_package)+'s',data)
socket_cliente.send(package)
temp = temp+size_package
f.close()
socket_cliente.send(pack('32s',md5_for_file(url_file)))
#################################### Function utils ####################################
def md5_for_file(url_file):
md5 = hashlib.md5()
with open(str(url_file),'rb') as f:
for chunk in iter(lambda: f.read(8192), b''):
md5.update(chunk)
return md5.hexdigest()
def pick_speed_in_secs(secs):
value = psutil.network_io_counters(pernic=True)
sub = value['eth0'][0]
down = value['eth0'][1]
time.sleep(secs)
value = psutil.network_io_counters(pernic=True)
actual_sub = int(((value['eth0'][0] - sub) * 0.0009765625 ) / secs)
actual_down = int(((value['eth0'][1] - down) * 0.0009765625) / secs)
return [actual_sub,actual_down]
def pick_speed_avg(value):
sub = value['eth0'][0]
down = value['eth0'][1]
value = psutil.network_io_counters(pernic=True)
avg_sub = int(((value['eth0'][0] - sub) * 0.0009765625 ) / generate_time)
avg_down = int(((value['eth0'][1] - down) * 0.0009765625) / generate_time)
#Only use in start script
if (avg_sub < 0):
avg_sub = 0
if (avg_down < 0):
avg_down = 0
#Only use in start script
return [avg_sub, avg_down, value]
#################################### Hard code ####################################
class Stats(Thread):
def __init__(self):
Thread.__init__(self)
#self.socket = socket_cliente
#self.datos = datos_cliente
def run(self):
speed_avg = psutil.network_io_counters(pernic=True)
seguir = True
while seguir:
#calculate time generate stats
start = time.time()
#calculate stats
# speed network #
network_actual = pick_speed_in_secs(2)
network_avg = pick_speed_avg(speed_avg);
speed_avg = network_avg[2];
# pack all #
try:
temperature = int(int(os.popen("cat /sys/class/thermal/thermal_zone0/temp").read())/1000)
except:
temperature = 40
data = {
"network_down": network_actual[1],#
"network_up": network_actual[0],#
"network_avg_down": network_avg[1],#
"network_avg_up": network_avg[0],#
"cache": psutil.cached_phymem(),#
"buffer": psutil.phymem_buffers(),#
"used": psutil.used_phymem(),#
"swap_total": psutil.total_virtmem(),#
"swap_used": psutil.used_virtmem(),#
"hdd_use_": psutil.disk_usage('/')[3],
"hdd_use_home": psutil.disk_usage('/home')[3],
"cpu_use": psutil.cpu_percent(interval=1),#
"cpu_mhz": int(os.popen("cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq").read()[:-3]),
"temp": temperature
}
data_string = json.dumps(data)
#print 'ENCODED:', data_string
temp = time.localtime(start)
datatime = str(temp[2])+"/"+str(temp[1])+"/"+str(temp[0])+" "+str(temp[3])+"/"+str(temp[4])+"/"+str(temp[5])
if (os.path.exists(url_file_location) != True):
data = {
"ava": psutil.avail_phymem(),#
"swap_ava": psutil.avail_virtmem(),#
}
data_string_2 = json.dumps(data)
tmp = True
else:
tmp = False
f=open(str(url_file_location),"a")
if (tmp == True):
f.write('"data":'+data_string_2)
f.write(', '+'"'+datatime+'":'+data_string)
f.close()
del data
del data_string
del temp
del datatime
del network_actual
del temperature
time.sleep(generate_time - int(time.time() - start))
class Cliente(Thread):
def __init__(self, socket_cliente, datos_cliente):
Thread.__init__(self)
self.socket = socket_cliente
self.datos = datos_cliente
def run(self):
package = recvpackage(self.socket,4)
print "package",package
if (package != ""):
result = unpack('i', package)
if(result[0] == 1):
sendfile(self.socket,self.datos,str(url_file_location))
elif(result[0] == 0):
self.socket.send(pack('i',0))
self.socket.close()
#print "client ", self.datos," complete"
#################################### Init code ####################################
if __name__ == '__main__':
generate_stats = Stats()
generate_stats.start()
# Se prepara el servidor
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind(("", 8002))
server.listen(5)
print "Wait clients..."
while 1:
# Se espera a un cliente
socket_cliente, datos_cliente = server.accept()
# Se escribe su informacion
print "conectado "+str(datos_cliente)
print datos_cliente
# Se crea la clase con el hilo y se arranca.
package = recvpackage(socket_cliente,4)
package = unpack('i', package)
if(package[0] == 1):
hilo3 = Cliente(socket_cliente, datos_cliente)
hilo3.start()
#elif(package[0] == 0):
# servers.append([socket_cliente,datos_cliente,'file_return',0,'hilo','frame'])
# print "server anadido a la lista"
elif(package[0] == 9):
print "test mode"
#recvfile(socket_cliente,datos_cliente,'/tmp/test.tar.gz')