def __init__(self, parent = None):
QtGui.QWidget.__init__(self, parent)
self.ui = Ui_LogBrowser()
self.ui.setupUi(self)
self.ui.comboBox.currentIndexChanged.connect(self.logChanged)
self.model = LogInfo()
self.model.setLogFile('/var/log/syslog')
self.ui.textBrowser.append(''.join(self.model.readLastLines()))
self.model.lineAdded.connect(self.addLogEntry)
class LogBrowser(QtGui.QWidget):
def __init__(self, parent = None):
QtGui.QWidget.__init__(self, parent)
self.ui = Ui_LogBrowser()
self.ui.setupUi(self)
self.ui.comboBox.currentIndexChanged.connect(self.logChanged)
self.model = LogInfo()
self.model.setLogFile('/var/log/syslog')
self.ui.textBrowser.append(''.join(self.model.readLastLines()))
self.model.lineAdded.connect(self.addLogEntry)
def addLogEntry(self, line):
self.ui.textBrowser.append(line)
def logChanged(self, index):
paths = [
'/var/log/syslog',
'/var/log/messages',
'/var/log/kern.log',
'/var/log/auth.log']
path = paths[index]
self.model.setLogFile(path)
self.ui.textBrowser.setPlainText(''.join(self.model.readLastLines()))
class LogMonitorServerProtocol(WampServerProtocol):
"""
This is simple log browser server protocol.
As with other server classes model is created, when new connection
is established, and deleted when client closes websocket connection
"""
uri = "http://system-monitor.com"
def onSessionOpen(self):
"""
When connection is established, we create our
model instances and register them for RPC. that's it.
"""
# set up process model
self.logModel = LogInfo()
self.logModel.signalNamespace(self, "logModel")
self.logModel.setLogFile("/var/log/syslog")
# expose model methods for RPC
self.registerMethodForRpc(
self.uri + "/logModel.readLastLines", self.logModel, lambda i: self.logModel.readLastLines()
)
# self.registerForRpc(self.uri+ '/logModel', self)
self.registerMethodForRpc(
self.uri + "/logModel.changeLogFile", self, lambda i, logNum: self.changeLogFile(logNum)
)
@exportRpc
def changeLogFile(self, logNum):
paths = ["/var/log/syslog", "/var/log/messages", "/var/log/kern.log", "/var/log/auth.log"]
log = paths[int(logNum)]
self.logModel.setLogFile(log)
def connectionLost(self, reason):
"""
When connection is gone (i.e. client close window, navigated
away from the page), stop the model timer, which holds last
reference to model, and delete the model
"""
WampServerProtocol.connectionLost(self, reason)
# self.logModel.timer.stop()
self.logModel = None
def onSessionOpen(self):
"""
When connection is established, we create our
model instances and register them for RPC. that's it.
"""
# set up process model
self.logModel = LogInfo()
self.logModel.signalNamespace(self, "logModel")
self.logModel.setLogFile("/var/log/syslog")
# expose model methods for RPC
self.registerMethodForRpc(
self.uri + "/logModel.readLastLines", self.logModel, lambda i: self.logModel.readLastLines()
)
# self.registerForRpc(self.uri+ '/logModel', self)
self.registerMethodForRpc(
self.uri + "/logModel.changeLogFile", self, lambda i, logNum: self.changeLogFile(logNum)
)
