mirror of
https://github.com/sqlmapproject/sqlmap.git
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130 lines
4.9 KiB
Python
130 lines
4.9 KiB
Python
#!/usr/bin/env python
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"""
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Copyright (c) 2006-2022 sqlmap developers (https://sqlmap.org/)
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See the file 'LICENSE' for copying permission
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"""
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import sqlite3
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from lib.core.common import cleanReplaceUnicode
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from lib.core.common import getSafeExString
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from lib.core.common import unsafeSQLIdentificatorNaming
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from lib.core.exception import SqlmapConnectionException
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from lib.core.exception import SqlmapGenericException
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from lib.core.exception import SqlmapValueException
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from lib.core.settings import UNICODE_ENCODING
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from lib.utils.safe2bin import safechardecode
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class Replication(object):
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"""
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This class holds all methods/classes used for database
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replication purposes.
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"""
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def __init__(self, dbpath):
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try:
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self.dbpath = dbpath
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self.connection = sqlite3.connect(dbpath)
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self.connection.isolation_level = None
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self.cursor = self.connection.cursor()
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except sqlite3.OperationalError as ex:
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errMsg = "error occurred while opening a replication "
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errMsg += "file '%s' ('%s')" % (dbpath, getSafeExString(ex))
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raise SqlmapConnectionException(errMsg)
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class DataType(object):
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"""
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Using this class we define auxiliary objects
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used for representing sqlite data types.
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"""
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def __init__(self, name):
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self.name = name
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def __str__(self):
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return self.name
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def __repr__(self):
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return "<DataType: %s>" % self
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class Table(object):
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"""
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This class defines methods used to manipulate table objects.
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"""
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def __init__(self, parent, name, columns=None, create=True, typeless=False):
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self.parent = parent
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self.name = unsafeSQLIdentificatorNaming(name)
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self.columns = columns
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if create:
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try:
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self.execute('DROP TABLE IF EXISTS "%s"' % self.name)
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if not typeless:
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self.execute('CREATE TABLE "%s" (%s)' % (self.name, ','.join('"%s" %s' % (unsafeSQLIdentificatorNaming(colname), coltype) for colname, coltype in self.columns)))
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else:
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self.execute('CREATE TABLE "%s" (%s)' % (self.name, ','.join('"%s"' % unsafeSQLIdentificatorNaming(colname) for colname in self.columns)))
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except Exception as ex:
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errMsg = "problem occurred ('%s') while initializing the sqlite database " % getSafeExString(ex, UNICODE_ENCODING)
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errMsg += "located at '%s'" % self.parent.dbpath
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raise SqlmapGenericException(errMsg)
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def insert(self, values):
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"""
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This function is used for inserting row(s) into current table.
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"""
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if len(values) == len(self.columns):
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self.execute('INSERT INTO "%s" VALUES (%s)' % (self.name, ','.join(['?'] * len(values))), safechardecode(values))
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else:
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errMsg = "wrong number of columns used in replicating insert"
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raise SqlmapValueException(errMsg)
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def execute(self, sql, parameters=None):
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try:
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try:
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self.parent.cursor.execute(sql, parameters or [])
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except UnicodeError:
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self.parent.cursor.execute(sql, cleanReplaceUnicode(parameters or []))
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except sqlite3.OperationalError as ex:
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errMsg = "problem occurred ('%s') while accessing sqlite database " % getSafeExString(ex, UNICODE_ENCODING)
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errMsg += "located at '%s'. Please make sure that " % self.parent.dbpath
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errMsg += "it's not used by some other program"
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raise SqlmapGenericException(errMsg)
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def beginTransaction(self):
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"""
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Great speed improvement can be gained by using explicit transactions around multiple inserts.
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Reference: http://stackoverflow.com/questions/4719836/python-and-sqlite3-adding-thousands-of-rows
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"""
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self.execute('BEGIN TRANSACTION')
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def endTransaction(self):
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self.execute('END TRANSACTION')
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def select(self, condition=None):
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"""
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This function is used for selecting row(s) from current table.
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"""
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_ = 'SELECT * FROM %s' % self.name
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if condition:
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_ += 'WHERE %s' % condition
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return self.execute(_)
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def createTable(self, tblname, columns=None, typeless=False):
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"""
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This function creates Table instance with current connection settings.
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"""
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return Replication.Table(parent=self, name=tblname, columns=columns, typeless=typeless)
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def __del__(self):
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self.cursor.close()
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self.connection.close()
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# sqlite data types
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NULL = DataType('NULL')
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INTEGER = DataType('INTEGER')
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REAL = DataType('REAL')
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TEXT = DataType('TEXT')
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BLOB = DataType('BLOB')
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