def prepareServerForNewUser(self, user):
username = ''
if user is None:
user = None
elif isinstance(user, User):
user = self.getUserCreateIfNotExistent(user.name)
elif isinstance(user, basestring):
user = self.getUserCreateIfNotExistent(user)
else:
raise ValueError('User must be either None, a User Class or a string')
if self.activeUser:
self.log.info('Logging current user out: %s' % self.activeUser.name)
self.terminateAllComponents( self.activeUser )
if user:
self.log.info('Preparing the Server for new user: %s' % username)
# Clear the eventHistory
EventHistory.clear()
self.activeUser = user
def screenReaderStopped(self, reader):
self.log.debug( 'Screenreader stopped %s' % reader.name )
if not self.component:
raise AttributeError('Component is not set')
if not self.isAlive():
EventHistory.actionStopped(self, self.component)
def lostConnection(self):
self.log.warning('Lost connection to %s' % str(self))
self.log.info ('Informing all components assigned to this host')
EventHistory.hostOffline(self)
self.ctrlChannel = None
self.screenReader = None
self.ssh.disconnect()
def killStateChannel( self ):
self.log.debug('Killing state channel for Action "%s"' % ( self.name ))
if self.stateChannel:
self.stateChannel.send(chr(3))
self.stateChannel.send( 'exit\n' )
if self.stateCommand:
# non blocking commands, so only one shell required
# kill both screens for start and stop command
channel = self.component.host.invokeShell()
cmd = self.createKillCmd( self.stateCommand )
channel.send(cmd)
self.state = None
EventHistory.newState( self, self.component, self.state )
def screenReaderStopped(self, reader):
self.log.debug( 'Action %s\'s ScreenReader stopped %s. Still alive: %s' % ( self.name, reader.name, self.isAlive() ))
if not self.component:
raise AttributeError('Component is not set')
if not self.isAlive():
EventHistory.actionStopped(self, self.component)
for s in self.screenReaders['show']:
if s.isAlive():
self.log.debug( 'Action %s\'s Show-ScreenReader %s is alive' % ( self.name, s.name ))
for s in self.screenReaders['hide']:
if s.isAlive():
self.log.debug( 'Action %s\'s Hide-ScreenReader %s is alive' % ( self.name, s.name ))
def start(self, globalVars=None):
if not self.component or not self.component.host:
raise AttributeError('Host is not set for %s' % str(self))
if not self.isAlive():
self.clearScreenReaders()
if not self.canStart():
self.log.info('Cannot start Action "%s", no commands found' % (self.name))
return
self.log.info('Starting Action "%s". "%d" Commands / "%d" dependencies found' % (self.name, len(self._startCommands), len(self.dependencies)))
if len(self.dependencies):
self.log.info('Action depends on: %s' % list('%s>%s' % (item.component.getName(), item.name) for item in self.dependencies))
for dep in self.dependencies:
dep.start()
for cmd in self._startCommands.values():
channel = self.component.host.invokeShell()
command = self.createScreenCmd( cmd, globalVars )
hideLog = cmd.hideLog
self.startChannels.append(channel)
screen_name = self.name + '_run'
screenReader = ScreenReader( screen_name, channel, self.log, notifyStop=self.screenReaderStopped)
self.screenReaders['hide' if hideLog else 'show'].append(screenReader)
screenReader.start()
self.log.debug('Running start command "%s" by Action "%s"' % (command.replace('\n','\\n'), self.name))
channel.send(command)
self.constantlyCheckState( globalVars )
# if blocking is enabled for this command, wait for the screenreader to quit
if cmd.blocking and screenReader and screenReader.isAlive():
self.log.debug('Command requires blocking. Action "%s" joined the screenReader Thread. Waiting for it to finish' % self.name)
screenReader.join( 5.0 )
# notify EventHandler after all cmds run
if self.isAlive():
EventHistory.actionRun(self, self.component)
return True
else:
self.log.debug('Could not start action "%s", Action still active' % self.name)
return False
def connect(self):
if not self.isConnected():
try:
self.ssh.connect()
except socket.timeout as e:
self.log.debug('Connection to %s timed out' % str(self))
return False
except Exception as e:
self.log.debug('Could not connect to %s' % str(self))
return False
try:
self.log.info('Connected to %s' % str(self))
EventHistory.hostOnline(self)
return True
except Exception as e:
self.log.exception('Could open control. Clossing %s' % str(self))
self.screenReader = None
self.disconnect()
return False
def notifyNewStatusLine( self, screen, line ):
configurationStart = line.rfind( '<configuration>' )
configurationEnd = line.rfind( '</configuration' )
if configurationStart < 0 or configurationEnd < 0:
return
configTxt = line[ configurationStart : configurationEnd ]
code = ''
codeStart = configTxt.find( '<code>' )
codeEnd = configTxt.find( '</code>' )
if codeStart >= 0 and codeEnd >= 0:
code = configTxt[ codeStart+len( '<code>' ) : codeEnd ]
message = ''
messageStart = configTxt.find( '<message>' )
messageEnd = configTxt.find( '</message>' )
if messageStart >= 0 and messageEnd >= 0:
message = configTxt[ messageStart+len( '<message>' ) : messageEnd ]
if not self.state or self.state[ 'code' ] != code or self.state[ 'message' ] != message:
print 'CODE: "%s", MESSGAGE: "%s"' % ( code, message )
self.state = { 'code': code, 'message': message }
EventHistory.newState( self, self.component, self.state )
def do_GET(self):
serverThread = self.server.serverThread
activeUser = serverThread.activeUser
try:
responseCode = 200
args = {}
options = {}
output = None
try:
auth = None
if self.headers.has_key('Authorization'):
userPass = None
auth = {'token': str(self.headers['Authorization'])}
if auth[ 'token' ].lower().startswith( 'basic' ):
# remove the leading "Basic " before splitting into user/pass
userPass = base64.b64decode(auth['token'][6:]).split(':')
elif auth[ 'token' ].lower().startswith( 'localhost' ):
host, port = self.client_address
if host != 'localhost' and host != '127.0.0.1':
raise UnauthorizedRequestError( 'Only allowed by localhost', self.path )
name = auth[ 'token' ][ 10: ]
userPass = [ name, '' ]
else:
raise UnauthorizedRequestError( 'Illegal token: %s' % auth[ 'token' ], self.path)
if len(userPass) != 2:
auth = None
self.server.log.warn('Invalid Authorization Header: %s', str(self.headers['Authorization']))
else:
# important: always process names in lowercase
auth['user'] = userPass[0].lower()
auth['pass'] = userPass[1]
if not activeUser:
auth['status'] = WebServer.SERVER_AVAILABLE
elif activeUser and activeUser.name == auth['user']:
auth['status'] = WebServer.SERVER_IN_CHARGE
else:
auth['status'] = WebServer.SERVER_NOT_AVAILABLE
# if no auth was sent, return an 401 Unauthorized
if not auth:
raise UnauthorizedRequestError('No Auth-Token received', self.path)
# get the request user
requestUser = serverThread.getUserCreateIfNotExistent(auth['user'])
# split the path by the first ?
argsString, optionsString = self.path.split('?', 1) if self.path.find('?') > 0 else (self.path, '')
# parse the request (remove the leading and trailing / , then split by /)
args = argsString.strip('/').split("/")
# parse the options string
temp = optionsString.split('&')
for t in temp:
key, value = t.split('=',1) if t.find('=') > 0 else (t, '')
if key:
value = urllib2.unquote( urllib2.unquote(value)).replace( '+', ' ' ) if value else None
options[key] = value
# action is the first argument
action = args[0]
# Status Command must be available even if no user is logged in
if action == 'status':
output = '{"status": %d}' % auth['status']
elif action == 'info':
output = '[Path]<br>%s<br>' % str(self.path)
output += '<br>'
output += '[Args]<br>%s<br>' % str(args)
output += '<br>'
output += '[Options]<br>%s<br>' % str(options)
output += '<br>'
output += '[ActiveUser]<br>'
if activeUser:
output += 'name:%s<br>' % activeUser.name
else:
output += 'None<br>'
output += '<br>'
output += '[RequestUser]<br>name:%s<br>' % requestUser.name
output += '<br>'
output += '[Components]<br>'
output += "<table>"
output += "<tr><th>Name</th><th>Active</th><th>Online ScreenReader Show</th><th>Online ScreenReader Hide</th></tr>"
for comp in requestUser.components():
ma = comp.mainAction
output += '<tr>'
output += '<td>%s</td>' % ma.name
output += '<td>%s</td>' % ma.isAlive()
output += '<td>'
for s in ma.screenReaders[ 'show' ]:
if s.isAlive():
output += str( s.name )
output += '</td><td>'
for s in ma.screenReaders[ 'hide' ]:
if s.isAlive():
output += str( s.name )
output += '</td>'
output += '</tr>'
output += '</table>'
output += '<br>' * 3
output += '[Hosts]<br>'
for host in serverThread.hosts.values():
output += '%s<br>' % str(host)
output += '<br>'
output += '[Auth]<br>'
if not auth:
output += 'None'
else:
output += 'token: %s<br>' % auth['token']
output += 'user: %s<br>' % auth['user']
output += '<br>'
output += '[Permission]<br>'
output += "Bitmask: %s<br>" % str(requestUser.getPrivileges())
output += "ACTION_RUN: %s<br>" % str(requestUser.hasPrivilege(privileges.ACTION_RUN))
output += "ACTION_STOP: %s<br>" % str(requestUser.hasPrivilege(privileges.ACTION_STOP))
output += "ACTION_STATUS: %s<br>" % str(requestUser.hasPrivilege(privileges.ACTION_STATUS))
output += "COMP_ADMIN: %s<br>" % str(requestUser.hasPrivilege(privileges.COMP_ADMIN))
output += "HOST_ADMIN: %s<br>" % str(requestUser.hasPrivilege(privileges.HOST_ADMIN))
output += "START_SERVER: %s<br>" % str(requestUser.hasPrivilege(privileges.START_SERVER))
output += "PRIV_ADMIN: %s<br>" % str(requestUser.hasPrivilege(privileges.PRIV_ADMIN))
# privileges
elif action == 'privileges':
if len(args) < 2:
raise ArgumentRequestError('Wrong argument count for "privileges". %s found, at least 2 Required.' % str(args), self.path)
if args[1] == 'my':
output = str(requestUser.getPrivileges())
elif args[1] == 'all':
if not requestUser.hasPrivilege(privileges.PRIV_ADMIN):
raise UnauthorizedRequestError('Insufficient rights.', self.path)
allUsersPermission = serverThread.allUsersPermission();
output = json.dumps({'labels': privileges.dict(), 'users': allUsersPermission})
elif args[1] == 'submit':
if not requestUser.hasPrivilege(privileges.PRIV_ADMIN):
raise UnauthorizedRequestError('Insufficient rights.', self.path)
serverThread.savePermissions(options)
output = "Ok."
else:
raise ArgumentRequestError('Invalid Argument for privileges "%s". ' % str(args[1]), self.path)
# Request host / component data
elif action == 'data':
# data/(host|comp)
if len(args) < 2:
raise ArgumentRequestError('Wrong argument count for "data". %s found, at least 2 Required.' % str(args), self.path)
if args[1] == 'host':
JSONObj = {}
for host in serverThread.hosts.values():
JSONObj[host.id] = host.createJSONObj()
output = json.dumps(JSONObj)
#TODO: use json dump a la json.dump(comp.webInformation)!
elif args[1] == 'comp':
JSONObj = {}
for comp in requestUser.components():
JSONObj[comp.id] = comp.createJSONObj();
output = json.dumps(JSONObj)
# Events
elif args[1] == 'eventHistory':
# you must be in charge
if not auth['status'] == WebServer.SERVER_IN_CHARGE:
raise UnauthorizedRequestError('You are not in charge.', self.path)
if len(args) != 3:
raise ArgumentRequestError('Wrong argument count for "data/eventHistory". %s found, 3 Required.' % str(args), self.path)
if not args[2].isdigit():
raise ArgumentRequestError('Invalid argument for timestamp "%s". timestamp must be numerical.' % args[2], self.path)
timestamp = int(args[2])
data = EventHistory.getEventData(timestamp)
#TODO: use json dump
outputObject = { "timestamp": time.time(), "events": data }
output = json.dumps( outputObject )
else:
raise ArgumentRequestError('Invalid Argument for data "%s". ' % str(args[1]), self.path)
elif action == 'parameters':
# you must be in charge
if not auth['status'] == WebServer.SERVER_IN_CHARGE:
raise UnauthorizedRequestError('You are not in charge.', self.path)
try:
command = args[ 1 ]
compId = int( args[ 2 ])
actionId = int( args[ 3 ])
except ( ValueError, KeyError, IndexError ) as e:
raise ArgumentRequestError( 'Wrong format for parameter', self.path )
if command not in ( 'load', 'save' ):
raise ArgumentRequestError( 'Wrong command type', self.path )
comp = activeUser.get(compId)
if not comp:
raise ArgumentRequestError('Component with id "%d" not found' % compId, self.path)
action = comp.getAction(actionId)
if not action:
raise ArgumentRequestError('Action "%d" for component "%d, %s" not found.' % (actionId, compId, comp.getName()), self.path)
if command == 'load':
parameters = serverThread.loadParameters( comp, action )
output = parameters
if command == 'save':
try:
print options[ 'json' ]
data = json.loads( options['json'] )
print data
except KeyError, e:
raise ArgumentRequestError( 'Data Field missing', self.path )
except ValueError, e:
raise ArgumentRequestError('Could not decode json Object:\n%s' % options['json'], self.path)
if serverThread.saveParameters( comp, action, data ):
output = '{"success": true}'
else:
output = '{"success": false}'
