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#!/usr/bin/env python3
# -*- mode: python, coding: utf-8 -*-
'''
sysrss – Let your system generate a maintenance notification RSS
Copyright © 2012 Mattias Andrée (maandree@kth.se)
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 3 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, see <http://www.gnu.org/licenses/>.
'''
import os
import sys
import datetime
from subprocess import Popen, PIPE
'''
Hack to enforce UTF-8 in output (in the future, if you see anypony not using utf-8 in
programs by default, report them to Princess Celestia so she can banish them to the moon)
@param text:str The text to print (empty string is default)
@param end:str The appendix to the text to print (line breaking is default)
'''
def print(text = '', end = '\n'):
sys.stdout.buffer.write((str(text) + end).encode('utf-8'))
sys.stdout.buffer.flush()
'''
stderr equivalent to print()
@param text:str The text to print (empty string is default)
@param end:str The appendix to the text to print (line breaking is default)
'''
def printerr(text = '', end = '\n'):
sys.stderr.buffer.write((str(text) + end).encode('utf-8'))
sys.stderr.buffer.flush()
'''
Link {@link #print}, only better because this does not take a text ending
but takes a format and parameters
@param master:str Formated string
@param slave:str* Parameters for the formated string
'''
def printf(master, *slave):
sys.stdout.buffer.write((master % slave).encode('utf-8'))
'''
Flush stdout
'''
def flush():
sys.stdout.buffer.flush()
'''
Mane class
'''
class SysRSS:
'''
Mane method and constructor
'''
def __init__(self):
self.root = os.getenv('HOME') + '/.sysrss/'
self.sysinit()
'''
Initialise the system
'''
def sysinit(self):
if not os.path.isdir(self.root):
os.mkdir(self.root)
printf('Created root directory, %s.\n', self.root)
if not os.path.isfile(self.root + 'log'):
with open(self.root + 'log', 'wb') as file:
file.flush()
printf('Created log file, %s, it contains ever thing that have ever happend, ever.\n', self.root + 'log')
flush()
if not os.path.isfile(self.root + 'maintenance.rss'):
date = self.getTime()
with open(self.root + 'maintenance.rss', 'wb') as file:
file.write('<?xml version="1.0" encoding="utf-8"?>\n'.encode('utf-8'))
file.write('<rss version="2.0">\n'.encode('utf-8'))
file.write(' <channel>\n'.encode('utf-8'))
file.write(' <title>SysRSS</title>\n'.encode('utf-8'))
file.write(' <description>System maintenance notification RSS</description>\n'.encode('utf-8'))
file.write(' <link>http://localhost/</link>\n'.encode('utf-8'))
file.write((' <lastBuildDate>%s</lastBuildDate>\n' % date).encode('utf-8'))
file.write((' <pubDate>%s</pubDate>\n' % date).encode('utf-8'))
file.write(' <ttl>1800</ttl>\n'.encode('utf-8'))
file.write('\n'.encode('utf-8'))
file.write(' </channel>\n'.encode('utf-8'))
file.write('</rss>\n'.encode('utf-8'))
file.write('\n'.encode('utf-8'))
file.flush()
printf('Created rss file %s, your should set you news feed aggregator to syndicate this file.\n', self.root + 'maintenance.rss')
flush()
'''
Get a locale independent time stamp in RSS's [poor] format
@return :str The current time
'''
def getTime(self):
time = datetime.datetime.utcnow().strftime('(%w), %d [%m] %Y %H:%M:%S +0000')
time = time.replace('(1)', 'Mon')
time = time.replace('(2)', 'Tue')
time = time.replace('(3)', 'Wed')
time = time.replace('(4)', 'Thu')
time = time.replace('(5)', 'Fri')
time = time.replace('(6)', 'Sat')
time = time.replace('(0)', 'Sun') # [sic!]
time = time.replace('[01]', 'Jan')
time = time.replace('[02]', 'Feb')
time = time.replace('[03]', 'Mar')
time = time.replace('[04]', 'Apr')
time = time.replace('[05]', 'May')
time = time.replace('[06]', 'Jun')
time = time.replace('[07]', 'Jul')
time = time.replace('[08]', 'Aug')
time = time.replace('[09]', 'Sep')
time = time.replace('[10]', 'Oct')
time = time.replace('[11]', 'Nov')
time = time.replace('[12]', 'Dec')
return time
'''
Execute mane method if started using this file
'''
if __name__ == '__main__':
SysRSS()
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