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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# Copyright 2011 Justin Santa Barbara
# All Rights Reserved.
# Copyright (c) 2010 Citrix Systems, Inc.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.
import  os,sys,time,fcntl,struct
import  commands
import  traceback
import  socket
import  shutil
import  sys
try :
     from  hashlib  import  md5
except :
     from  md5  import  md5
def  logging(item,level,mes):
     logpath  =  '/var/log/kxtools/'
     if  not  os.path.exists(logpath):
         os.makedirs(logpath)
     fp  =  open ( '%s/kxbackup.log' % logpath, 'a' )
     fp.write( '%s - %s - %s - %s \n' % (time.ctime(),item,level,mes))
     fp.close()
"""Access file md5 value"""
def  MD5(fname):
     filemd5  =  ""
     try :
         file  =  open (fname,  "rb" )
         md5f  =  md5()
         strs  =  ""
         while  True :
             strs  =  file .read( 8096 )
             if  not  strs:
                 break
             md5f.update(strs)
         filemd5  =  md5f.hexdigest()
         file .close()
         return  filemd5
     except :
         logging( 'MySQL backup' , 'ERROR' ,traceback.format_exc())
def  get_em_ipaddr(dev):
     s  =  socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
     IP  =  socket.inet_ntoa(fcntl.ioctl(
            s.fileno(),
            0x8915 ,   # SIOCGIFADDR
            struct.pack( '24s' ,dev)
     )[ 20 : 24 ])
     return  IP
def  IPADDR():
     """
     Get host name, ip
     return(hostname, ip)
     """
     def  _get_ipaddr():
         try :
             s  =  socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
             s.connect(( "8.8.8.8" ,  8000 ))
             return  s.getsockname()[ 0 ]
         except :
             LOG.error(traceback.format_exc())
         s.close()
     return  (socket.gethostname(), _get_ipaddr())
def  COMM(cmd):
     # Call system commands
     try :
         x,y  =  commands.getstatusoutput(cmd)
         if  x ! =  0 :
             LOG.error(y)
             print  x,y,cmd
         return  x,y
     except :
         LOG.error(traceback.format_exc())
class  BackupMySQLDB( object ):
     def  __init__( self ,kwargs):
         version  =  1.0
         self .kwargs  =  kwargs
     def  deleteDB( self ):
         # Keep the data backup before two days
         reserve  =  list ()
         cctime  =  time.time()
         for  f  in  os.listdir( self .kwargs[ 'backup_path' ]):
             if  f.find( 'gz' ) ! =  - 1 :
                 reserve.append(f)
         for   x  in  reserve:
             f  =  '%s%s'  % ( self .kwargs[ 'backup_path' ],x)
             fctime  =   os.stat(f).st_ctime
             if  (cctime  -  fctime ) >  172800 :
                 shutil.move(f , '/data0/reserve/' )
                 mes  =  'Delete file %s is oK' % f
                 logging( 'MySQL backup' , 'INFO' ,mes)
     def  backupDB( self ):
         # Dump MySQL db ,zip,rsync to server
         ctimes  =  time.strftime( "%Y%m%d" )
         namesql  =  '%s_%s.sql'  % (ctimes,IPADDR()[ 1 ])
         fname  =  '%s/%s.gz'  % ( self .kwargs[ 'backup_path' ],namesql)
         if  not  os.path.exists( self .kwargs[ 'backup_path' ]):
             os.makedirs(kwargs[ 'backup_path' ])
         # mysqldump file to /data0/backup/
         x, y   =  COMM( "/usr/local/mysql/bin/mysqldump -u%s -p%s -S /var/lib/mysql/mysql.sock --opt  %s > %s/%s" \
                 % ( self .kwargs[ 'user' ], self .kwargs[ 'pass' ], self .kwargs[ 'dbname' ], self .kwargs[ 'backup_path' ],namesql))
         if  x ! =  0 :
             mes  =  ( 'mysqldump file %s is failure' % namesql)
             logging( 'MySQL backup' , 'ERROR' ,mes)
         else :
             mes  =  ( 'mysqldump file %s is oK' % namesql)
             logging( 'MySQL backup' , 'INFO' ,mes)
         os.chdir( self .kwargs[ 'backup_path' ])
         # Tar sql file
         x,y  =  COMM( "tar -czvf %s.gz %s"  % (namesql,namesql))
         if  x ! =  0 :
             mes  =  ( 'tar file %s is failure' % namesql)
             logging( 'MySQL backup' , 'ERROR' ,mes)
         else :
             mes  = ( 'tar file %s is oK' % namesql)
             logging( 'MySQL backup' , 'INFO' ,mes)
         # Create MD5 values
         md5  =   MD5(fname)
         newname  =  fname.split( '.sql.gz' )[ 0 ]  +  '_%s' % md5  +  '.sql.gz'
         shutil.move(fname , newname)
         # Rsync to server 192.168.223.51
         x, y  =  COMM( "rsync  -avz %s  %s::%s/"  % (newname, self .kwargs[ 'rsync_ip' ], self .kwargs[ 'rsync_model' ]))
         if  x ! =  0 :
             mes  =  "rsync file %s.gz is failure"  % namesql
             logging( 'MySQL backup' , 'ERROR' ,mes)
         else :
             mes  =  "rsync file %s.gz is oK"  % namesql
             logging( 'MySQL backup' , 'INFO' ,mes)
         # Delete sql file
         shutil.move(namesql, '/dev/null' )
     def  work( self ):
         self .deleteDB()
         self .backupDB()
if  __name__  = =  "__main__" :
     kwargs  =  {
         'user'  :  'admin' ,
         'pass'  :  'admin' ,
         'host'  :  'localhost' ,
         'dbname'  :  'abbs' ,
         'rsync_ip'  :  '192.168.223.51' ,
         'rsync_model'  :  'abbs_backup' ,
         'backup_path'  :  '/data0/backup/'
         }
     sc  =  BackupMySQLDB(kwargs)
     sc.work()