## dateBackend.py - provides the backend for system date calls ## Copyright (C) 2001, 2002, 2003 Red Hat, Inc. ## Copyright (C) 2001, 2002, 2003 Brent Fox ## Tammy Fox ## This program is free software; you can redistribute it and/or modify ## it under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 2 of the License, or ## (at your option) any later version. ## This program is distributed in the hope that it will be useful, ## but WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ## GNU General Public License for more details. ## You should have received a copy of the GNU General Public License ## along with this program; if not, write to the Free Software ## Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. import os import time import string import socket class dateBackend: def __init__(self): self.ntpFile = None self.ntpServer = None self.readNtpConf() pass def getDate (self): times = time.localtime(time.time()) return times def writeDateConfig (self, sysDate, sysTime): year, month, day = sysDate hour, min, sec = sysTime #--cal.get_date starts counting months at 0 for Jan. We need to start counting at 1 month = month + 1 path = '/bin/date -s %d/%d/%d' % (year,month,day) fd = os.popen(path, 'r') lines = fd.readlines() fd.close() path = '/bin/date -s %s:%s:%s' % (hour,min,sec) fd = os.popen(path, 'r') lines = fd.readlines() fd.close() def syncHardwareClock(self): # sync hardware clock. Will use either localtime or utc # according to value in /etc/adjtime (recorded last time hwclock # was run). if os.access("/sbin/hwclock", os.F_OK) == 1: #The S390 has no hwclock binary, so don't try to run it if it isn't there os.system("/sbin/hwclock --systohc") def writeNtpConfig (self, timeServer, ntpServerList): serverFound = 0 restrictFound = 0 ntpFileList = [] #Write /etc/ntp.conf file if self.ntpFile: for line in self.ntpFile: try: serverIP = socket.gethostbyname(timeServer) except: return None location = string.find(line, 'server') #If "server" is found in the line if location == 0: tokens = string.split(line) #If the line doesn't begin with a '#', then we're good if tokens[0][0] != "#" and tokens[0] == "server" and not serverFound: ntpFileList.append("server " + serverIP + "\n") serverFound = 1 else: #Else the line must either be a comment or some other abberation #Just add the line so we preserve comments ntpFileList.append(line) else: restrict = string.find(line, 'restrict') if restrict == 0: #If 'restrict' is found in the line tokens = string.split(line) if tokens[0][0] != "#" and tokens[0] == "restrict" and not restrictFound: if tokens[1] == "default": ntpFileList.append(line) ntpFileList.append("restrict %s mask 255.255.255.255 nomodify notrap noquery\n" % serverIP) restrictFound = 1 elif tokens[1] == "127.0.0.1": ntpFileList.append(line) else: ntpFileList.append(line) else: #This is not the server line, so just add it to the list ntpFileList.append(line) if not serverFound: #No server line was found in ntp.conf, which is a litte strange to begin with. #Anyway, just write out the whole file and append the server line to the end ntpFileList.append("server " + timeServer + "\n") #Now that we've got the list of data, open the file and write it out fd = open("/etc/ntp.conf", "w") for line in ntpFileList: fd.write(line) fd.close() else: fd = open("/usr/share/system-config-date/ntp.template", "r") lines = fd.readlines() fd.close() fd = open("/etc/ntp.conf", "w") for line in lines: if line[:6] == "server": fd.write("server " + timeServer + "\n") else: fd.write(line) fd.close() #Write /etc/ntp/step-tickers file if timeServer: fd = open("/etc/ntp/step-tickers", "w") fd.write(timeServer + "\n") fd.close() #Write /etc/ntp/ntpservers file if ntpServerList: fd = open("/etc/ntp/ntpservers", "w") for server in ntpServerList: fd.write(server + "\n") fd.close() return 0 def startNtpService (self, wait): if self.isNtpRunning() == 1: fullPath = '/sbin/service ntpd restart > /dev/null' else: fullPath = '/sbin/service ntpd start > /dev/null' path = "/sbin/service" args = [path, "ntpd", "restart"] retval = os.system(fullPath) return retval def chkconfigOn(self): path = ('/sbin/chkconfig --level 35 ntpd on') os.system (path) def chkconfigOff(self): path = ('/sbin/chkconfig --level 35 ntpd off') os.system (path) def stopNtpService (self): if self.isNtpRunning() == 1: path = ('/sbin/service ntpd stop > /dev/null') os.system (path) path = ('/sbin/chkconfig --level 35 ntpd off') os.system (path) def isNtpRunning (self): if not os.access("/etc/ntp.conf", os.R_OK): #The file doesn't exist, so return return 0 command = ('/sbin/service ntpd status > /dev/null') result = os.system(command) try: if result == 0: #ntpd is running return 1 else: #ntpd is stopped return 0 except: #we cannot parse the output of the initscript #the initscript is busted, so disable ntp return None def getNtpServer(self): serverFound = 0 if self.ntpFile: for line in self.ntpFile: location = string.find(line, 'server') if location == 0: tokens = string.split(line) if tokens[0][0] != "#" and tokens[0] == "server" and not serverFound: try: self.ntpServer = tokens[1] serverFound = 1 except: #They have a server line in /etc/ntp.conf with no server specified self.ntpServer = None if self.ntpServer == "127.127.1.0" or self.ntpServer == None: return None else: return self.ntpServer def readNtpConf(self): try: fd = open('/etc/ntp.conf', 'r') self.ntpFile = fd.readlines() fd.close() except: return def readServersFile(self): self.ntpServerList = [] if os.access("/etc/ntp/ntpservers", os.R_OK) == 1: fd = open("/etc/ntp/ntpservers", "r") lines = fd.readlines() for line in lines: line = string.strip(line) if line and line[0] != "#": self.ntpServerList.append(line) return self.ntpServerList else: return [""]