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mclient.py
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mclient.py
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import sys
import re
import os
import subprocess
import socket
import time
import getopt
import logging
from PyQt5.QtCore import Qt
from PyQt5 import QtCore, QtGui, QtWebKit, QtNetwork, QtWebKitWidgets, QtWidgets
try:
opts, extraparams = getopt.getopt(sys.argv[1:], 'i:h:p:w')
except getopt.GetoptError as err:
sys.exit(2)
ID = 1
ANY = "0.0.0.0"
MCAST_ADDR = "224.168.2.9"
MCAST_PORT = 1600
FULLWINDOW = 1
LOGLEVEL = 10 # debug, 40=error
web = None
VERSION = '0.4.1'
STARTPAGE = '<html>' \
'<body style="background-color:#000;color:#fff">' \
'<p style="text-align:center;color:silver;padding-top:50%;font-size:100%;font-family:Arial">eMonitor-Client<br/>ver. {}</p>' \
'</body>' \
'</html>'.format(VERSION)
BLANKPAGE = '<html><body style="background-color:#000;color:#fff"></body></html>'
for item in opts:
if item[0] == '-i':
ID = item[1]
if item[0] == '-h':
MCAST_ADDR = item[1]
if item[0] == '-p':
MCAST_PORT = item[1]
if item[0] == '-w':
FULLWINDOW = 0
if item[0] == '-l':
LOGLEVEL = item[1]
logging.basicConfig(filename='mclient.log', level=LOGLEVEL)
logger = logging.getLogger()
def getLastLoad():
"""
analyse logfile for last called server
:return: ip-address of server
"""
if os.path.isfile('mclient.log'):
for line in reversed(open('mclient.log', 'r').readlines()):
if 'load' in line.rstrip() or 'reset' in line.rstrip():
ip = re.findall(r'[0-9]+(?:\.[0-9]+){3}:[0-9]+', line.rstrip().split()[-1])
if len(ip) == 0:
ip = re.findall(r'[0-9]+(?:\.[0-9]+){3}', line.rstrip().split()[-1])
if len(ip) > 0:
return ip[0]
return None
class AD_Listener(QtCore.QObject):
message = QtCore.pyqtSignal(str)
def __init__(self):
QtCore.QObject.__init__(self)
self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.sock.bind((ANY, MCAST_PORT))
self.sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 255)
self.sock.setsockopt(socket.IPPROTO_IP,
socket.IP_ADD_MEMBERSHIP,
socket.inet_aton(MCAST_ADDR) + socket.inet_aton(ANY))
self.sock.setblocking(0)
self.running = True
logger.debug('mclient started')
def loop(self):
global ID, web
logip = getLastLoad()
logger.debug("mclient v {} for eMonitor started with id {}, waiting for events...".format(VERSION, ID))
# init startpage
if logip:
self.sock.sendto('initneed', (MCAST_ADDR, MCAST_PORT))
logger.debug("reload last source {}".format(logip))
self.message.emit('http://{}/monitor/{}'.format(logip, ID))
else:
self.message.emit('http://{}/monitor/{}'.format(logip, ID))
logger.debug("no source ip found.")
while self.running:
try:
data, addr = self.sock.recvfrom(1024)
ts = time.gmtime()
except socket.error, e:
pass
else:
logger.debug("%s:%s - %s: --> %s" % (addr[0], addr[1], time.strftime('%Y.%m.%d - %H:%M:%S', ts), data))
data = data.split("|")
print "addr", addr
if len(data) > 1:
if data[0] in ['0', ID]:
if data[1] == "load":
self.sock.sendto('%s|load done' % ID, (addr[0], addr[1]))
if "{}" in data[2]:
self.message.emit(data[2].format(ID))
elif "%s" in data[2]: # compatibility to old versions
self.message.emit(data[2] % ID)
else:
self.message.emit(data[2])
logger.debug('LOAD: {}'.format(data[2]))
if data[1] == "execute":
try:
subprocess.check_output('/home/pi/{}'.format(data[2]), stderr=subprocess.STDOUT, shell=True)
logger.debug('EXECUTE: {}'.format(data[2]))
except:
logger.error('EXECUTE: {}'.format(data[2]))
if data[1] == "reset":
self.message.emit('reset')
self.sock.sendto('{}|reset done'.format(ID), (addr[0], addr[1]))
self.message.emit(data[2].format(ID))
logger.debug('RESET')
if data[1] == "ping":
if not logip:
self.sock.sendto('{}|initneed'.format(ID), (addr[0], addr[1]))
else:
self.sock.sendto('{}|alive|{}'.format(ID, VERSION), (addr[0], addr[1]))
logger.debug('PING')
if data[1] == "changeid":
ID = int(data[2])
self.sock.sendto('{}|changedone'.format(ID), (addr[0], addr[1]))
web.setWindowTitle("eMonitor-Client id ({} - {})".format(ID), VERSION)
logger.debug('CHANGEID')
if data[1] == "getscripts":
scripts = [f for f in os.listdir('scripts') if os.path.isfile(os.path.join('scripts', f))]
self.sock.sendto('{}|scripts={}'.format(ID, '__'.join(scripts)), (addr[0], addr[1]))
time.sleep(2)
class WebPage(QtWebKitWidgets.QWebPage):
def __init__(self):
QtWebKitWidgets.QWebPage.__init__(self)
def userAgentForUrl(self, url):
return "mClient/{} (X11; raspberry arm; {}) mClient/2016 mClient/{}".format(VERSION, VERSION, VERSION)
class AD_Window(QtWidgets.QMainWindow):
def __init__(self, parent=None):
QtWidgets.QMainWindow.__init__(self, parent)
self.request = None
self.startpage = STARTPAGE
self.blankpage = BLANKPAGE
self.webView = QtWebKitWidgets.QWebView()
self.webView.setPage(WebPage())
self.webView.setAttribute(Qt.WA_TranslucentBackground, True)
self.webView.setAttribute(Qt.WA_OpaquePaintEvent, True)
# self.webView.setTextSizeMultiplier(2.0)
settings = self.webView.settings()
settings.setAttribute(QtWebKit.QWebSettings.LocalContentCanAccessRemoteUrls, True)
settings.setAttribute(QtWebKit.QWebSettings.LocalContentCanAccessRemoteUrls, True)
settings.setAttribute(QtWebKit.QWebSettings.LocalContentCanAccessFileUrls, True)
settings.setAttribute(QtWebKit.QWebSettings.LocalStorageEnabled, True)
settings.setAttribute(QtWebKit.QWebSettings.AutoLoadImages, True)
self.setCentralWidget(self.webView)
palette = self.centralWidget().palette()
palette.setBrush(QtGui.QPalette.Base, Qt.black)
self.centralWidget().setPalette(palette)
self.webView.setHtml(self.startpage)
self.setWindowTitle("eMonitor-Client id ({}) - {}".format(ID, VERSION))
self.thread = QtCore.QThread()
self.ad_listener = AD_Listener()
self.ad_listener.moveToThread(self.thread)
self.thread.started.connect(self.ad_listener.loop)
self.ad_listener.message.connect(self.signal_received)
QtCore.QTimer.singleShot(0, self.thread.start)
def signal_received(self, message):
logger.debug(QtCore.qVersion())
try:
if message == "reset":
self.webView.setHtml(self.blankpage)
else:
self.request = QtNetwork.QNetworkRequest()
self.request.setRawHeader("Content-Type", QtCore.QByteArray('application/octet-stream'))
self.request.setRawHeader("Accept-Language", QtCore.QByteArray("de, *"))
self.request.setUrl(QtCore.QUrl(message))
self.webView.load(self.request)
# old version without user-agent
# self.webView.load(QtCore.QUrl(message))
except:
self.webView.setHtml(self.startpage)
logger.error('receive: {}'.format(message))
def closeEvent(self, event):
logger.debug('close')
self.ad_listener.running = False
self.thread.quit()
self.thread.wait()
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
web = AD_Window()
if not os.path.exists('scripts'):
os.makedirs('scripts')
if FULLWINDOW == 1:
web.setWindowFlags(QtCore.Qt.FramelessWindowHint)
web.showFullScreen()
else:
web.show()
sys.exit(app.exec_())