class file1:
def __init__(self):
self.sql = SQLiteHandler('seFS')
self.sql.connect()
def ls(self):
rows = self.sql.execute(''' select * from metadata ''')
list = []
for row in rows:
list.append(row[1])
return list
def getutime(self, path):
#Getter for utime
rows = self.sql.execute('''select mtime, ctime, atime from metadata where abspath='%s' ''' %( path))
for row in rows:
tup = (row[0], row[1], row[2])
return tup
def utime(self, path, times):
#Setter for utime
mtime, ctime, atime = times
self.sql.execute(''' update metadata set mtime='%s', ctime='%s', atime='%s' where abspath='%s' ''' %(mtime, ctime, atime, path))
self.sql.commit()
return times
def setinode(self,path,inode):
#Setter for inode
self.sql.execute(''' update metadata set inode = '%d' where abspath='%s' ''' %(inode, path))
self.sql.commit()
return inode
def set_id(self,path,gid,uid,mode,link):
#Setter for uid, gid, mode and linkcount
self.sql.execute(''' update metadata set gid= '%d',uid= '%d',mode='%d',linkcount='%d' where abspath='%s' ''' %(gid, uid, mode,link, path))
self.sql.commit()
return True
def setlinkcount(self,path,linkcnt):
#Setter for linkcount
self.sql.execute(''' update metadata set linkcount = '%d' where abspath='%s' ''' %(linkcnt, path))
self.sql.commit()
return linkcnt
def setmode(self,path,mode):
#Setter for mode
self.sql.execute(''' update metadata set mode = '%d' where abspath='%s' ''' %(mode, path))
self.sql.commit()
return mode
def getinode(self,path):
"""
Getter for inode
"""
rows = self.sql.execute(''' select inode from metadata where abspath='%s' ''' %( path))
for row in rows:
return row[0]
def getlength(self,path):
"""
Calculates length of data
"""
rows = self.sql.execute(''' select length from metadata where abspath='%s' ''' %( path))
for row in rows:
return row[0]
def getlinkcount(self,path):
""" Getter for linkcount """
rows = self.sql.execute(''' select linkcount from metadata where abspath='%s' ''' %( path))
for row in rows:
return row[0]
def getmode(self,path):
""" Getter for mode """
rows = self.sql.execute(''' select mode from metadata where abspath='%s' ''' %( path))
for row in rows:
return row[0]
def open(self, path):
""" insert new record in database """
self.sql.execute(''' insert into metadata (abspath) select '%s' where not exists (SELECT 1 FROM metadata WHERE abspath='%s') ''' %(path,path))
self.sql.commit()
return path
def write(self, path, data):
""" Implements write() call """
length = len(data)
rows = self.sql.execute(''' select inode from metadata where abspath='%s' ''' %(path) )
id = None
for row in rows:
id = row[0]
self.sql.execute(''' update metadata set length= '%s',data= '%s' where abspath='%s' ''' %(length, data, path))
self.sql.commit()
return
def set_writetime(self, path, times):
self.sql.execute(''' update metadata set mtime='%s', atime='%s' where abspath='%s' ''' %(times, times, path))
self.sql.commit()
return times
def remove(self,abspath):
"""
Implements unlink() call
"""
self.sql.execute(''' delete from metadata where abspath='%s' ''' %(abspath))
self.sql.commit()
return
def search(self, abspath):
""" Search file in database record """
rows = self.sql.execute(''' select inode from metadata where abspath='%s' ''' %(abspath))
if rows.fetchall():
return True
return False
def read(self, fh):
"""
Implements read() call
"""
id = None
rows = self.sql.execute(''' select inode from metadata where abspath='%s' ''' %(fh))
for row in rows:
id = row[0]
if id is None:
return None
rows = self.sql.execute(''' select data from metadata where abspath='%s' ''' %(fh))
for row in rows:
return row[0]
def __del__(self):
"""
Closes the databse connection
"""
self.sql.close()
class seFS:
"""
Class representing seFS
"""
def __init__(self):
"""
Connects to seFS database
"""
self.sql = SQLiteHandler('seFS')
self.sql.connect()
def ls(self):
"""
Implements ls operation
"""
rows = self.sql.execute(''' select * from file ''')
list = []
for row in rows:
list.append(row[1])
return list
def getutime(self, path):
"""
Getter for utime
"""
rows = self.sql.execute(
''' select mtime, ctime, atime from file where abspath='%s' ''' %
(path))
for row in rows:
tup = (row[0], row[1], row[2])
return tup
def utime(self, path, times):
"""
Setter for utime
"""
print times
mtime, ctime, atime = times
print mtime, ctime, atime
self.sql.execute(
''' update file set mtime='%s', ctime='%s', atime='%s' where abspath='%s' '''
% (mtime, ctime, atime, path))
self.sql.commit()
return times
def setinode(self, path, inode):
"""
Setter for inode
"""
print path, inode
self.sql.execute(
''' update file set inode = '%d' where abspath='%s' ''' %
(inode, path))
self.sql.commit()
return inode
def getinode(self, path):
"""
Getter for inode
"""
rows = self.sql.execute(
''' select inode from file where abspath='%s' ''' % (path))
for row in rows:
return row[0]
def getlength(self, path):
"""
Calculates length of data
"""
rows = self.sql.execute(
''' select length from file where abspath='%s' ''' % (path))
for row in rows:
return row[0]
def open(self, path):
"""
Implements file open() call
"""
self.sql.execute(
''' insert into file (abspath) select '%s' where not exists (SELECT 1 FROM file WHERE abspath='%s') '''
% (path, path))
self.sql.commit()
return path
def write(self, fh, data):
"""
Implements write() call
"""
length = len(data)
shaObj = Crypto(string=data)
sha1 = shaObj.sha1()
comp = Compression(data)
compressed = comp.compress()
rows = self.sql.execute(
''' select id from fileinfo where sha='%s' ''' % (sha1))
id = None
for row in rows:
id = row[0]
if id is None:
self.sql.execute(
''' insert into fileinfo (length, sha, compressed, data) values ('%s','%s','%s', '%s') '''
% (length, sha1, compressed, data))
self.sql.commit()
row = self.sql.execute(
''' select id,length from fileinfo where sha='%s' ''' % (sha1))
for rows in row:
id = rows[0]
print id, length
self.sql.execute(
''' update file set id='%d', length='%d' where abspath='%s' '''
% (id, length, fh))
self.sql.commit()
return
else:
self.sql.execute(
''' update file set id='%d', length='%d' where abspath='%s' '''
% (id, length, fh))
self.sql.commit()
return
def remove(self, abspath):
"""
Implements unlink() call
"""
self.sql.execute(''' delete from file where abspath='%s' ''' %
(abspath))
self.sql.commit()
return
def search(self, abspath):
"""
Search for database record
"""
rows = self.sql.execute(''' select * from file where abspath='%s' ''' %
(abspath))
if rows.fetchall():
return True
return False
def read(self, fh):
"""
Implements read() call
"""
id = None
rows = self.sql.execute(
''' select id from file where abspath='%s' ''' % (fh))
for row in rows:
id = row[0]
if id is None:
return None
rows = self.sql.execute(
''' select data from fileinfo where id='%d' ''' % id)
for row in rows:
return row[0]
def __del__(self):
"""
Closes the databse connection
"""
self.sql.close()
class FileSystem:
#------------------Constructor makes connection to the database----------------------
def __init__(self):
self.sql = SQLiteHandler('seFS')
self.sql.connect()
#-----------------This functions performs the same as ls operation-------------------------
def ls(self):
rows = self.sql.execute(''' select * from metadata ''')
list = []
for row in rows:
list.append(row[1])
return list
#-------------This is a getter method for retrieving utime from the database----------------
def getutime(self, path):
#Getter for utime
rows = self.sql.execute('''select mtime, ctime, atime from metadata where abspath='%s' ''' %( path))
for row in rows:
tup = (row[0], row[1], row[2])
return tup
#----------------This is a setter method for storing utime in the database-------------------
def utime(self, path, times):
#Setter for utime
mtime, ctime, atime = times
self.sql.execute(''' update metadata set mtime='%s', ctime='%s', atime='%s' where abspath='%s' ''' %(mtime, ctime, atime, path))
self.sql.commit()
return times
#----------------This is a setter method for storing inode in the database-------------------
def setinode(self,path,inode):
#Setter for inode
self.sql.execute(''' update metadata set inode = '%d' where abspath='%s' ''' %(inode, path))
self.sql.commit()
return inode
#----------This is a setter method for storing uid, gid, mode and linkcount-------------------
def set_id(self,path,gid,uid,mode,link):
#Setter for uid, gid, mode and linkcount
self.sql.execute(''' update metadata set gid= '%d',uid= '%d',mode='%d',linkcount='%d' where abspath='%s' ''' %(gid, uid, mode,link, path))
self.sql.commit()
return True
#-----------------------This is a setter method for storing linkcount--------------------------
def setlinkcount(self,path,linkcnt):
#Setter for linkcount
self.sql.execute(''' update metadata set linkcount = '%d' where abspath='%s' ''' %(linkcnt, path))
self.sql.commit()
return linkcnt
#-------------------------This is a setter method for storing mode-----------------------------
def setmode(self,path,mode):
#Setter for mode
self.sql.execute(''' update metadata set mode = '%d' where abspath='%s' ''' %(mode, path))
self.sql.commit()
return mode
#------------This is a getter method for retrieving the inode from the database-----------------
def getinode(self,path):
"""
Getter for inode
"""
rows = self.sql.execute(''' select inode from metadata where abspath='%s' ''' %( path))
for row in rows:
return row[0]
#----------This is a getter method for retrieving the length of data from the database---------------
def getlength(self,path):
"""
Calculates length of data
"""
rows = self.sql.execute(''' select length from metadata where abspath='%s' ''' %( path))
for row in rows:
return row[0]
#------------This is a getter method for retrieving the linkcount from the database-----------------
def getlinkcount(self,path):
""" Getter for linkcount """
rows = self.sql.execute(''' select linkcount from metadata where abspath='%s' ''' %( path))
for row in rows:
return row[0]
#------------This is a getter method for retrieving mode value from the database-------------------
def getmode(self,path):
""" Getter for mode """
rows = self.sql.execute(''' select mode from metadata where abspath='%s' ''' %( path))
for row in rows:
return row[0]
#---------------------------This method inserts new record in database-----------------------------
def open(self, path):
""" insert new record in database """
self.sql.execute(''' insert into metadata (abspath) select '%s' where not exists (SELECT 1 FROM metadata WHERE abspath='%s') ''' %(path,path))
self.sql.commit()
return path
#-------------------------------This method implements write() call-------------------------------
def write(self, path, data):
""" Implements write() call """
length = len(data)
rows = self.sql.execute(''' select inode from metadata where abspath='%s' ''' %(path) )
id = None
for row in rows:
id = row[0]
self.sql.execute(''' update metadata set length= '%s',data= '%s' where abspath='%s' ''' %(length, data, path))
self.sql.commit()
return
#----------------------This method sets mtime, atime for the file in the database-----------------
def set_writetime(self, path, times):
self.sql.execute(''' update metadata set mtime='%s', atime='%s' where abspath='%s' ''' %(times, times, path))
self.sql.commit()
return times
#--------------------------This method deletes the file from the directory-------------------------
def remove(self,abspath):
"""
Implements unlink() call
"""
self.sql.execute(''' delete from metadata where abspath='%s' ''' %(abspath))
self.sql.commit()
return
#-------------------Look for inode in the database for further processing---------------------------
def search(self, abspath):
""" Search file in database record """
rows = self.sql.execute(''' select inode from metadata where abspath='%s' ''' %(abspath))
if rows.fetchall():
return True
return False
#--------------------Retrieve the data from its corresponding file based on its inode---------------
def read(self, fh):
"""
Implements read() call
"""
id = None
rows = self.sql.execute(''' select inode from metadata where abspath='%s' ''' %(fh))
for row in rows:
id = row[0]
if id is None:
return None
rows = self.sql.execute(''' select data from metadata where abspath='%s' ''' %(fh))
for row in rows:
return row[0]
#-------------------------Now this method closes the database connection------------------------------
def __del__(self):
"""
Closes the databse connection
"""
self.sql.close()
class file1:
def __init__(self):
self.sql = SQLiteHandler('seFS')
self.sql.connect()
def ls(self):
rows = self.sql.execute(''' select * from metadata ''')
list = []
for row in rows:
list.append(row[1])
return list
def getutime(self, path):
#Getter for utime
rows = self.sql.execute(
'''select mtime, ctime, atime from metadata where abspath='%s' '''
% (path))
for row in rows:
tup = (row[0], row[1], row[2])
return tup
def utime(self, path, times):
#Setter for utime
mtime, ctime, atime = times
self.sql.execute(
''' update metadata set mtime='%s', ctime='%s', atime='%s' where abspath='%s' '''
% (mtime, ctime, atime, path))
self.sql.commit()
return times
def setinode(self, path, inode):
#Setter for inode
self.sql.execute(
''' update metadata set inode = '%d' where abspath='%s' ''' %
(inode, path))
self.sql.commit()
return inode
def set_id(self, path, gid, uid, mode, link):
#Setter for uid, gid, mode and linkcount
self.sql.execute(
''' update metadata set gid= '%d',uid= '%d',mode='%d',linkcount='%d' where abspath='%s' '''
% (gid, uid, mode, link, path))
self.sql.commit()
return True
def setlinkcount(self, path, linkcnt):
#Setter for linkcount
self.sql.execute(
''' update metadata set linkcount = '%d' where abspath='%s' ''' %
(linkcnt, path))
self.sql.commit()
return linkcnt
def setmode(self, path, mode):
#Setter for mode
self.sql.execute(
''' update metadata set mode = '%d' where abspath='%s' ''' %
(mode, path))
self.sql.commit()
return mode
def getinode(self, path):
"""
Getter for inode
"""
rows = self.sql.execute(
''' select inode from metadata where abspath='%s' ''' % (path))
for row in rows:
return row[0]
def getlength(self, path):
"""
Calculates length of data
"""
rows = self.sql.execute(
''' select length from metadata where abspath='%s' ''' % (path))
for row in rows:
return row[0]
def getlinkcount(self, path):
""" Getter for linkcount """
rows = self.sql.execute(
''' select linkcount from metadata where abspath='%s' ''' % (path))
for row in rows:
return row[0]
def getmode(self, path):
""" Getter for mode """
rows = self.sql.execute(
''' select mode from metadata where abspath='%s' ''' % (path))
for row in rows:
return row[0]
def open(self, path):
""" insert new record in database """
self.sql.execute(
''' insert into metadata (abspath) select '%s' where not exists (SELECT 1 FROM metadata WHERE abspath='%s') '''
% (path, path))
self.sql.commit()
return path
def write(self, path, data):
""" Implements write() call """
length = len(data)
rows = self.sql.execute(
''' select inode from metadata where abspath='%s' ''' % (path))
id = None
for row in rows:
id = row[0]
self.sql.execute(
''' update metadata set length= '%s',data= '%s' where abspath='%s' '''
% (length, data, path))
self.sql.commit()
return
def set_writetime(self, path, times):
self.sql.execute(
''' update metadata set mtime='%s', atime='%s' where abspath='%s' '''
% (times, times, path))
self.sql.commit()
return times
def remove(self, abspath):
"""
Implements unlink() call
"""
self.sql.execute(''' delete from metadata where abspath='%s' ''' %
(abspath))
self.sql.commit()
return
def search(self, abspath):
""" Search file in database record """
rows = self.sql.execute(
''' select inode from metadata where abspath='%s' ''' % (abspath))
if rows.fetchall():
return True
return False
def read(self, fh):
"""
Implements read() call
"""
id = None
rows = self.sql.execute(
''' select inode from metadata where abspath='%s' ''' % (fh))
for row in rows:
id = row[0]
if id is None:
return None
rows = self.sql.execute(
''' select data from metadata where abspath='%s' ''' % (fh))
for row in rows:
return row[0]
def __del__(self):
"""
Closes the databse connection
"""
self.sql.close()
class seFS:
"""
Class representing seFS
"""
def __init__(self):
"""
Connects to seFS database
"""
self.sql = SQLiteHandler('seFS')
self.sql.connect()
def ls(self):
"""
Implements ls operation
"""
rows = self.sql.execute(''' select * from file ''')
list = []
for row in rows:
list.append(row[1])
return list
def getutime(self, path):
"""
Getter for utime
"""
rows = self.sql.execute(''' select mtime, ctime, atime from file where abspath='%s' ''' %( path))
for row in rows:
tup = (row[0], row[1], row[2])
return tup
def utime(self, path, times):
"""
Setter for utime
"""
print times
mtime, ctime, atime = times
print mtime, ctime, atime
self.sql.execute(''' update file set mtime='%s', ctime='%s', atime='%s' where abspath='%s' ''' %(mtime, ctime, atime, path))
self.sql.commit()
return times
def setinode(self,path,inode):
"""
Setter for inode
"""
print path,inode
self.sql.execute(''' update file set inode = '%d' where abspath='%s' ''' %(inode, path))
self.sql.commit()
return inode
def getinode(self,path):
"""
Getter for inode
"""
rows = self.sql.execute(''' select inode from file where abspath='%s' ''' %( path))
for row in rows:
return row[0]
def getlength(self,path):
"""
Calculates length of data
"""
rows = self.sql.execute(''' select length from file where abspath='%s' ''' %( path))
for row in rows:
return row[0]
def open(self, path):
"""
Implements file open() call
"""
self.sql.execute(''' insert into file (abspath) select '%s' where not exists (SELECT 1 FROM file WHERE abspath='%s') ''' %(path,path))
self.sql.commit()
return path
def write(self, fh, data):
"""
Implements write() call
"""
length = len(data)
shaObj = Crypto(string = data)
sha1 = shaObj.sha1()
comp = Compression(data)
compressed = comp.compress()
rows = self.sql.execute(''' select id from fileinfo where sha='%s' ''' %(sha1) )
id = None
for row in rows:
id = row[0]
if id is None:
self.sql.execute(''' insert into fileinfo (length, sha, compressed, data) values ('%s','%s','%s', '%s') ''' %(length, sha1, compressed, data))
self.sql.commit()
row = self.sql.execute(''' select id,length from fileinfo where sha='%s' ''' %(sha1))
for rows in row:
id = rows[0]
print id,length
self.sql.execute(''' update file set id='%d', length='%d' where abspath='%s' ''' %(id,length,fh))
self.sql.commit()
return
else:
self.sql.execute(''' update file set id='%d', length='%d' where abspath='%s' ''' %(id,length,fh))
self.sql.commit()
return
def remove(self,abspath):
"""
Implements unlink() call
"""
self.sql.execute(''' delete from file where abspath='%s' ''' %(abspath))
self.sql.commit()
return
def search(self, abspath):
"""
Search for database record
"""
rows = self.sql.execute(''' select * from file where abspath='%s' ''' %(abspath))
if rows.fetchall():
return True
return False
def read(self, fh):
"""
Implements read() call
"""
id = None
rows = self.sql.execute(''' select id from file where abspath='%s' ''' %(fh))
for row in rows:
id = row[0]
if id is None:
return None
rows = self.sql.execute(''' select data from fileinfo where id='%d' ''' %id)
for row in rows:
return row[0]
def __del__(self):
"""
Closes the databse connection
"""
self.sql.close()