| 1 | #!/usr/bin/env python
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| 2 | # -*- coding: utf-8 -*-
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| 3 |
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| 4 | import logging
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| 5 | import fuse
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| 6 | import stat
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| 7 | import errno
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| 8 | import os
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| 9 | import pexpect
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| 10 | import sys
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| 11 |
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| 12 | fuse.fuse_python_api = (0, 2)
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| 13 |
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| 14 | ###### bconsole
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| 15 | ################
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| 16 |
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| 17 | LOG_FILENAME = '/tmp/baculafs.log'
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| 18 | #LOG_BCONSOLE = '/tmp/bconsole.log'
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| 19 | LOG_BCONSOLE_DUMP = '/tmp/bconsole.out'
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| 20 |
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| 21 |
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| 22 | #BACULA_CMD = 'strace -f -o /tmp/bconsole.strace /usr/sbin/bconsole -n'
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| 23 | BACULA_CMD = '/usr/sbin/bconsole -n'
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| 24 | # .clients
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| 25 | # 5: ting-fd
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| 26 | BACULA_CLIENT='5'
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| 27 |
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| 28 | BCONSOLE_CMD_PROMPT='\*'
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| 29 | BCONSOLE_SELECT_PROMPT='Select item:.*'
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| 30 | BCONSOLE_RESTORE_PROMPT='\$ '
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| 31 |
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| 32 |
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| 33 | class Bconsole:
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| 34 |
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| 35 | def __init__(self, client=BACULA_CLIENT):
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| 36 | #logging.debug('BC init')
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| 37 | self.bconsole = pexpect.spawn( BACULA_CMD, logfile=file(LOG_BCONSOLE_DUMP, 'w'), timeout=10 )
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| 38 | self.bconsole.setecho( False )
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| 39 | self.bconsole.expect( BCONSOLE_CMD_PROMPT )
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| 40 | self.bconsole.sendline( 'restore' )
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| 41 | #self.bconsole.expect( BCONSOLE_SELECT_PROMPT )
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| 42 | self.bconsole.sendline( "5" )
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| 43 | #self.bconsole.expect( BCONSOLE_SELECT_PROMPT )
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| 44 | self.bconsole.sendline( BACULA_CLIENT )
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| 45 | self.bconsole.expect( BCONSOLE_RESTORE_PROMPT )
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| 46 | #logging.debug( "BC alive: " + str(self.bconsole.isalive()) )
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| 47 | #logging.debug('BC init done')
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| 48 |
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| 49 | def cd(self, path):
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| 50 | path = path + "/"
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| 51 | logging.debug( "(" + path + ")" )
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| 52 |
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| 53 | self.bconsole.sendline( 'cd ' + path )
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| 54 | #self.bconsole.expect( BCONSOLE_RESTORE_PROMPT, timeout=10 )
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| 55 | #self.bconsole.sendline( 'pwd' )
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| 56 |
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| 57 | index = self.bconsole.expect( ["cwd is: " + path + "[/]?", BCONSOLE_RESTORE_PROMPT, pexpect.EOF, pexpect.TIMEOUT ] )
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| 58 | logging.debug( "cd result: " + str(index) )
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| 59 |
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| 60 | if index == 0:
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| 61 | # path ok, now wait for prompt
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| 62 | self.bconsole.expect( BCONSOLE_RESTORE_PROMPT )
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| 63 | return True
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| 64 | elif index == 1:
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| 65 | #print "wrong path"
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| 66 | return False
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| 67 | elif index == 2:
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| 68 | logging.error( "EOF bconsole" )
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| 69 | #raise?
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| 70 | return False
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| 71 | elif index == 3:
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| 72 | logging.error( "TIMEOUT bconsole" )
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| 73 | return False
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| 74 |
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| 75 | def ls(self, path):
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| 76 | logging.debug( "(" + path + ")" )
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| 77 |
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| 78 | if self.cd( path ):
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| 79 | self.bconsole.sendline( 'ls' )
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| 80 | self.bconsole.expect( BCONSOLE_RESTORE_PROMPT )
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| 81 | lines = self.bconsole.before.splitlines()
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| 82 | #logging.debug( str(lines) )
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| 83 | return lines
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| 84 | else:
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| 85 | return
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| 86 |
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| 87 | ###############
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| 88 |
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| 89 | class BaculaFS(fuse.Fuse):
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| 90 |
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| 91 | TYPE_NONE = 0
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| 92 | TYPE_FILE = 1
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| 93 | TYPE_DIR = 2
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| 94 |
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| 95 | files = { '': {'type': TYPE_DIR} }
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| 96 |
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| 97 | def __init__(self, *args, **kw):
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| 98 | logging.debug('init')
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| 99 | #self.console = Bconsole()
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| 100 | fuse.Fuse.__init__(self, *args, **kw)
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| 101 | #logging.debug('init finished')
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| 102 |
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| 103 |
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| 104 | def _getattr(self,path):
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| 105 | # TODO: may cause problems with filenames that ends with "/"
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| 106 | path = path.rstrip( '/' )
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| 107 | logging.debug( '"' + path + '"' )
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| 108 |
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| 109 | if (path in self.files):
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| 110 | #logging.debug( "(" + path + ")=" + str(self.files[path]) )
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| 111 | return self.files[path]
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| 112 |
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| 113 | if Bconsole().cd(path):
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| 114 | # don't define files, because these have not been checked
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| 115 | self.files[path] = { 'type': self.TYPE_DIR, 'dirs': [ ".", ".." ] }
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| 116 |
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| 117 | return self.files[path]
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| 118 |
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| 119 |
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| 120 |
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| 121 |
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| 122 | def _getdir(self, path):
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| 123 |
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| 124 | # TODO: may cause problems with filenames that ends with "/"
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| 125 | path = path.rstrip( '/' )
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| 126 | logging.debug( '"' + path + '"' )
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| 127 |
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| 128 | if (path in self.files):
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| 129 | #logging.debug( "(" + path + ")=" + str(self.files[path]) )
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| 130 | if self.files[path]['type'] == self.TYPE_NONE:
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| 131 | logging.info( '"' + path + '" does not exist (cached)' )
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| 132 | return self.files[path]
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| 133 | elif self.files[path]['type'] == self.TYPE_FILE:
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| 134 | logging.info( '"' + path + '"=file (cached)' )
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| 135 | return self.files[path]
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| 136 | elif ((self.files[path]['type'] == self.TYPE_DIR) and ('files' in self.files[path])):
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| 137 | logging.info( '"' + path + '"=dir (cached)' )
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| 138 | return self.files[path]
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| 139 |
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| 140 | try:
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| 141 | files = Bconsole().ls(path)
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| 142 | logging.debug( " files: " + str( files ) )
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| 143 |
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| 144 | # setting initial empty directory. Add entires later in this function
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| 145 | self.files[path] = { 'type': self.TYPE_DIR, 'dirs': [ ".", ".." ], 'files': [] }
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| 146 | for i in files:
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| 147 | if i.endswith('/'):
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| 148 | # we expect a directory
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| 149 | # TODO: error with filesnames, that ends with '/'
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| 150 | i = i.rstrip( '/' )
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| 151 | self.files[path]['dirs'].append(i)
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| 152 | if not (i in self.files):
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| 153 | self.files[path + "/" + i] = { 'type': self.TYPE_DIR }
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| 154 | else:
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| 155 | self.files[path]['files'].append(i)
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| 156 | self.files[path + "/" + i] = { 'type': self.TYPE_FILE }
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| 157 |
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| 158 | except Exception as e:
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| 159 | logging.exception(e)
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| 160 | logging.error( "no access to path " + path )
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| 161 | self.files[path] = { 'type': TYPE_NONE }
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| 162 | logging.debug( '"' + path + '"=' + str( self.files[path] ) )
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| 163 | return self.files[path]
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| 164 |
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| 165 |
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| 166 |
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| 167 | # TODO: only works after readdir for the directory (eg. ls)
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| 168 | def getattr(self, path):
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| 169 |
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| 170 | # TODO: may cause problems with filenames that ends with "/"
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| 171 | path = path.rstrip( '/' )
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| 172 | logging.debug( '"' + path + '"' )
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| 173 |
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| 174 | st = fuse.Stat()
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| 175 |
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| 176 | if not (path in self.files):
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| 177 | self._getattr(path)
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| 178 |
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| 179 | if not (path in self.files):
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| 180 | return -errno.ENOENT
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| 181 |
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| 182 | file = self.files[path]
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| 183 |
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| 184 | if file['type'] == self.TYPE_FILE:
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| 185 | st.st_mode = stat.S_IFREG | 0444
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| 186 | st.st_nlink = 1
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| 187 | st.st_size = 0
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| 188 | return st
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| 189 | elif file['type'] == self.TYPE_DIR:
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| 190 | st.st_mode = stat.S_IFDIR | 0755
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| 191 | if 'dirs' in file:
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| 192 | st.st_nlink = len(file['dirs'])
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| 193 | else:
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| 194 | st.st_nlink = 2
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| 195 | return st
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| 196 |
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| 197 | # TODO: check for existens
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| 198 | return -errno.ENOENT
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| 199 |
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| 200 |
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| 201 |
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| 202 |
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| 203 | def readdir(self, path, offset):
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| 204 | logging.debug( '"' + path + '", offset=' + str(offset) + ')' )
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| 205 |
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| 206 | dir = self._getdir( path )
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| 207 |
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| 208 | #logging.debug( " readdir: type: " + str( dir['type'] ) )
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| 209 | #logging.debug( " readdir: dirs: " + str( dir['dirs'] ) )
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| 210 | #logging.debug( " readdir: file: " + str( dir['files'] ) )
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| 211 |
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| 212 | if dir['type'] != self.TYPE_DIR:
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| 213 | return -errno.ENOENT
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| 214 | else:
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| 215 | return [fuse.Direntry(f) for f in dir['files'] + dir['dirs']]
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| 216 |
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| 217 | #def open( self, path, flags ):
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| 218 | #logging.debug( "open " + path )
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| 219 | #return -errno.ENOENT
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| 220 |
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| 221 | #def read( self, path, length, offset):
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| 222 | #logging.debug( "read " + path )
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| 223 | #return -errno.ENOENT
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| 224 |
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| 225 | if __name__ == "__main__":
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| 226 | # initialize logging
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| 227 | logging.basicConfig(filename=LOG_FILENAME,level=logging.DEBUG,format="%(asctime)s %(process)5d(%(threadName)s) %(levelname)-7s %(funcName)s( %(message)s )")
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| 228 |
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| 229 | fs = BaculaFS()
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| 230 | fs.parse()
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| 231 | fs.main()
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