import ConfigParser import datetime import shutil import os from singleton import Singleton import state @Singleton class BMConfigParser(ConfigParser.SafeConfigParser): def set(self, section, option, value=None): if self._optcre is self.OPTCRE or value: if not isinstance(value, basestring): raise TypeError("option values must be strings") return ConfigParser.ConfigParser.set(self, section, option, value) def get(self, section, option, raw=False, vars=None): if section == "bitmessagesettings" and option == "timeformat": try: return ConfigParser.ConfigParser.get(self, section, option, raw, vars) except ConfigParser.InterpolationError: return ConfigParser.ConfigParser.get(self, section, option, True, vars) return ConfigParser.ConfigParser.get(self, section, option, True, vars) def safeGetBoolean(self, section, field): if self.has_option(section, field): try: return self.getboolean(section, field) except ValueError: return False return False def safeGetInt(self, section, field, default=0): if self.has_option(section, field): try: return self.getint(section, field) except ValueError: return default return default def safeGet(self, section, option, default = None): if self.has_option(section, option): return self.get(section, option) else: return default def items(self, section, raw=False, vars=None): return ConfigParser.ConfigParser.items(self, section, True, vars) def save(self): fileName = os.path.join(state.appdata, 'keys.dat') fileNameBak = fileName + "." + datetime.datetime.now().strftime("%Y%j%H%M%S%f") + '.bak' # create a backup copy to prevent the accidental loss due to the disk write failure try: shutil.copyfile(fileName, fileNameBak) # The backup succeeded. fileNameExisted = True except (IOError, Exception): # The backup failed. This can happen if the file didn't exist before. fileNameExisted = False # write the file with open(fileName, 'wb') as configfile: self.write(configfile) # delete the backup if fileNameExisted: os.remove(fileNameBak)