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#-*- coding: utf-8 -*-
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# Copyright 2008-2010 Calculate Ltd. http://www.calculate-linux.org
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import sys
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import re
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# Вывод в строку ввода
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import readline
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# Файловый объект из строки
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import cStringIO
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import termios
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# Для ввода символа
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import tty
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# Работа со временем
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import time
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from cl_utils import getpathenv, runOsCommand
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"""общие функции серверных программ"""
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def unicList(listEl):
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"""Уникальный список с сохранением порядка"""
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retList = []
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[not x in retList and retList.append(x) for x in listEl]
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return retList
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def dialogYn(message):
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"""Вывод сообщения, ожидание нажатия Y или n
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если Y - True если n - False"""
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def getChar():
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fd = sys.stdin.fileno()
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oldSet = termios.tcgetattr(fd)
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tty.setraw(fd)
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char = sys.stdin.read(1)
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termios.tcsetattr(fd, termios.TCSADRAIN, oldSet)
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return char
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def term(char):
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if ord(char) == 3:
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return None
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if char == "Y":
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return True
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elif char == "n":
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return False
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else:
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char = getChar()
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return term(char)
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sys.stdout.write(message + ":")
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char = getChar()
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res = term(char)
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sys.stdout.write("\n")
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return res
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def dialogYesNo(message):
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"""Вывод сообщения, ожидание набора Yes или No (в любом регистре)
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если Yes - True, если No - False"""
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sys.stdout.write(message + ": ")
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strIn=sys.stdin.readline().lower().strip()
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sys.stdout.write("\n")
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if "yes" == strIn:
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return True
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elif "no" == strIn:
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return False
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else:
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return dialogYesNo(message)
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def rawInput(promptText="", inputText=""):
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"""Создает поле ввода
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promptText - текст перед полем ввода
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inputText - текст в поле ввода
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"""
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if inputText:
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# Записываем текст для последующего вывода в строке ввода
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readline.set_pre_input_hook(lambda:\
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readline.insert_text(inputText) or\
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readline.redisplay())
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strInput = ""
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if promptText:
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# Получаем текст введенный пользователем
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strInput = raw_input(promptText)
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else:
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strInput = raw_input()
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if inputText:
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# Сбрасываем строку ввода
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readline.set_pre_input_hook(None)
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return strInput
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def execProg(cmdStrProg, inStr=False, retFull=True, envProg={}):
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"""Выполняет внешнюю программу
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Параметры:
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cmdStrProg внешняя программа
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inStr данные передаваемые программе на страндартный вход.
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Возвращаемые параметры:
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строка которую выведет внешняя программа или False в случае ошибки
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"""
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env_path = {"PATH":getpathenv()}
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env = {}
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env.update(os.environ.items() + env_path.items() + envProg.items())
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retCode,programOut = runOsCommand(cmdStrProg,inStr,retFull,env)
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if not retCode:
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return programOut
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return False
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def genSleep(timeSleep=(0.2, 0.4, 0.8)):
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"""Генератор задержек"""
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for t in timeSleep:
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time.sleep(t)
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yield(t)
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def stringIsJpeg(string):
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"""Определяет является ли строка - jpeg изображением"""
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if len(string)<8:
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return False
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FD = cStringIO.StringIO(string)
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isJpeg = False
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FD.seek(0, 0)
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(firstByte, secondByte) = FD.read(2)
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if (ord(firstByte) == 0xff and ord(secondByte) == 0xd8):
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(firstByte, secondByte) = FD.read(2)
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if (ord(firstByte) == 0xff and ord(secondByte) == 0xe0):
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isJpeg = True
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return isJpeg
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def isCorrectStringNet(strNetworks, checkNet=True):
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"""Проверяет на корректность строку доверительных сетей
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Выводит cписок сетей
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"""
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splNet = strNetworks.replace(","," ").split(" ")
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if checkNet:
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checkIP = False
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res=re.compile("^\d\d?\d?\.\d\d?\d?\.\d\d?\d?\.\d\d?\d?\/\d\d?$")
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else:
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checkIP = True
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res=re.compile("^\d\d?\d?\.\d\d?\d?\.\d\d?\d?\.\d\d?\d?$")
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flagError = False
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networks = []
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for i in splNet:
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r = i.strip()
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if not r:
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continue
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find =res.search(r)
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if not find:
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flagError = True
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break
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else:
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splIP = map(lambda x: 255>=int(x.split("/")[0]) and\
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x.split("/")[0], find.group().split("."))
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if not splIP[0] or splIP[0] and int(splIP[0]) == 0:
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flagError = True
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break
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if not splIP[3] or splIP[3] and int(splIP[3]) == 255:
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flagError = True
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break
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if checkNet:
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netList = r.split("/")
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if len(netList)==2:
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try:
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netMaskInt = int(netList[1])
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except:
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flagError = True
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break
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if netMaskInt>31 or netMaskInt<4:
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flagError = True
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break
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else:
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flagError = True
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break
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if checkIP and splIP[3] and int(splIP[3]) == 0:
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flagError = True
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break
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for t in splIP:
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if t == False:
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flagError = True
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break
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if flagError:
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break
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networks.append(r)
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if flagError:
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return False
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else:
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return list(set(networks))
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def searchLineInFile(name, fileName, numEl=0):
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"""Ищет строку в которой есть название разделенное ':'
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в файле похожем на /etc/passwd"""
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if os.path.exists(fileName):
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FD = open(fileName)
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lines = FD.readlines()
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FD.close()
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lineFound = ""
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for line in lines:
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if name == line.split(":")[numEl]:
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lineFound = line
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break
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if lineFound:
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return lineFound
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else:
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return False
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def getMaxInFile(fileName, numMin, numMax, numEl=2):
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"""Получаем максимальный номер из файла похожего на /etc/group"""
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lst = []
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lst.append(0)
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if os.path.exists(fileName):
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FD = open(fileName)
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lines = FD.readlines()
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FD.close()
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for line in lines:
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if not ':' in line:
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continue
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num = int(line.split(":")[numEl])
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if num<=numMax and num>=numMin:
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lst.append(num)
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return max(lst)
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return False
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def chortToFullName(listNames, domain):
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"""Из списка коротких имен получаем cписок полных имен
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К коротким именам добавляем домен, длинные выдаем как есть
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"""
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listFillNames = []
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for name in listNames:
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if "." in name:
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listFillNames.append(name)
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else:
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listFillNames.append("%s.%s" %(name,domain))
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return listFillNames
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def addInfoUser(name, uid, gid, comment):
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"""Добавляем информацию о пользователе"""
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class user():
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"""Информация о пользователе"""
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name = ""
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uid = ""
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gid = ""
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comment = ""
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us = user()
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us.name = name
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us.uid = uid
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us.gid = gid
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us.comment = comment
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return us
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def addInfoGroup(name, gid, comment, rid="", type="", sid=""):
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"""Добавляем информацию о группе"""
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class group():
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"""Информация о группе"""
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name = ""
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gid = ""
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comment = ""
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rid = ""
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type = ""
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sid = ""
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gr = group()
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gr.name = name
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gr.gid = gid
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gr.comment = comment
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gr.rid = rid
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gr.type = type
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gr.sid = sid
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return gr
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