#!/bin/env python# -*- coding:utf-8 -*-import os,sys,re,getoptimport MySQLdbhost = '127.0.0.1'user = ''password = ''port = 3306start_datetime = '1971-01-01 00:00:00'stop_datetime = '2037-01-01 00:00:00'start_position = '4'stop_position = '18446744073709551615'database = ''mysqlbinlog_bin = 'mysqlbinlog -v'binlog = ''fileContent = ''output='rollback.sql'only_primary = 0# ----------------------------------------------------------------------------------------# 功能:获取参数,生成相应的binlog解析文件# ----------------------------------------------------------------------------------------def getopts_parse_binlog():global hostglobal userglobal passwordglobal portglobal fileContentglobal outputglobal binlogglobal start_datetimeglobal stop_datetimeglobal start_positionglobal stop_positionglobal databaseglobal only_primarytry:options, args = getopt.getopt(sys.argv[1:], "f:o:h:u:p:P:d:", ["help","binlog=","output=","host=","user=","password=","port=","start-datetime=", \"stop-datetime=","start-position=","stop-position=","database=","only-primary="])except getopt.GetoptError:print "参数输入有误!!!!!"options = []if options == [] or options[0][0] in ("--help"):usage()sys.exit()print "正在获取参数....."for name, value in options:if name == "-f" or name == "--binlog":binlog = valueif name == "-o" or name == "--output":output = valueif name == "-h" or name == "--host":host = valueif name == "-u" or name == "--user":user = valueif name == "-p" or name == "--password":password = valueif name == "-P" or name == "--port":port = valueif name == "--start-datetime":start_datetime = valueif name == "--stop-datetime":stop_datetime = valueif name == "--start-position":start_position = valueif name == "--stop-position":stop_position = valueif name == "-d" or name == "--database":database = valueif name == "--only-primary" :only_primary = valueif binlog == '' :print "错误:请指定binlog文件名!"usage()if user == '' :print "错误:请指定用户名!"usage()if password == '' :print "错误:请指定密码!"usage()if database <> '' : condition_database = "--database=" + "'" + database + "'"else:condition_database = ''print "正在解析binlog....."fileContent=os.popen("%s %s--base64-output=DECODE-ROWS --start-datetime='%s' --stop-datetime='%s' --start-position='%s' --stop-position='%s' %s\ |grep '###' -B 2|sed -e 's/### //g' -e 's/^INSERT/##INSERT/g' -e 's/^UPDATE/##UPDATE/g' -e 's/^DELETE/##DELETE/g' " \ %(mysqlbinlog_bin,binlog,start_datetime,stop_datetime,start_position,stop_position,condition_database)).read()#print fileContent# ----------------------------------------------------------------------------------------# 功能:初始化binlog里的所有表名和列名,用全局字典result_dict来储存每个表有哪些列# ----------------------------------------------------------------------------------------def init_col_name():global result_dictglobal pri_dictglobal fileContentresult_dict = {}pri_dict = {}table_list = re.findall('`.*`\\.`.*`',fileContent)table_list = list(set(table_list))#table_list 为所有在这段binlog里出现过的表print "正在初始化列名....."for table in table_list:sname = table.split('.')[0].replace('`','')tname = table.split('.')[1].replace('`','')#连接数据库获取列和列idtry:conn = MySQLdb.connect(host=host,user=user,passwd=password,port=int(port))cursor = conn.cursor()cursor.execute("select ordinal_position,column_name \ from information_schema.columns \ where table_schema='%s' and table_name='%s' " %(sname,tname))result=cursor.fetchall()if result == () :print 'Warning:'+sname+'.'+tname+'已删除'#sys.exit()result_dict[sname+'.'+tname]=resultcursor.execute("select ordinal_position,column_name \ from information_schema.columns \ where table_schema='%s' and table_name='%s' and column_key='PRI' " %(sname,tname))pri=cursor.fetchall()#print pripri_dict[sname+'.'+tname]=pricursor.close()conn.close()except MySQLdb.Error, e:try:print "Error %d:%s" % (e.args[0], e.args[1])except IndexError:print "MySQL Error:%s" % str(e)sys.exit()#print result_dict#print pri_dict# ----------------------------------------------------------------------------------------# 功能:拼凑回滚sql,逆序# ----------------------------------------------------------------------------------------def gen_rollback_sql():global only_primaryfileOutput = open(output, 'w')#先将文件根据'--'分块,每块代表一个sqlarea_list=fileContent.split('--\n')#逆序读取分块print "正在开始拼凑sql....."for area in area_list[::-1]:#由于一条sql可能影响多行,每个sql又可以分成多个逐条执行的sqlsql_list = area.split('##')#先将pos点和timestamp传入输出文件中for sql_head in sql_list[0].splitlines():sql_head = '#'+sql_head+'\n'fileOutput.write(sql_head)#逐条sql进行替换更新,逆序for sql in sql_list[::-1][0:-1]:try:if sql.split()[0] == 'INSERT':rollback_sql = re.sub('^INSERT INTO', 'DELETE FROM', sql, 1)rollback_sql = re.sub('SET\n', 'WHERE\n', rollback_sql, 1)tablename_pos = 2table_name = rollback_sql.split()[tablename_pos].replace('`', '')# 获取该sql中的所有列col_list = sorted(list(set(re.findall('@\d+', rollback_sql))))# 因为第一个列前面没有逗号或者and,所以单独替换rollback_sql = rollback_sql.replace('@1=', result_dict[table_name][0][1]+'=')for col in col_list[1:]:i = int(col[1:]) - 1rollback_sql = rollback_sql.replace(col+'=', 'AND ' + result_dict[table_name][i][1]+'=',1)# 如果only_primary开启且存在主键,where条件里就只列出主键字段if int(only_primary) == 1 and pri_dict[table_name] <> ():sub_where = ''for primary in pri_dict[table_name]:primary_name = primary[1]for condition in rollback_sql.split('WHERE', 1)[1].splitlines():if re.compile('^\s*'+primary_name).match(condition) or re.compile('^\s*AND\s*'+primary_name).match(condition):sub_where = sub_where + condition + '\n'sub_where = re.sub('^\s*AND', '', sub_where, 1)rollback_sql = rollback_sql.split('WHERE', 1)[0] + 'WHERE\n' + sub_whereif sql.split()[0] == 'UPDATE':rollback_sql = re.sub('SET\n', '#SET#\n', sql, 1)rollback_sql = re.sub('WHERE\n', 'SET\n', rollback_sql, 1)rollback_sql = re.sub('#SET#\n', 'WHERE\n', rollback_sql, 1)tablename_pos = 1table_name = rollback_sql.split()[tablename_pos].replace('`', '')# 获取该sql中的所有列col_list = sorted(list(set(re.findall('@\d+', rollback_sql))))# 因为第一个列前面没有逗号或者and,所以单独替换rollback_sql = rollback_sql.replace('@1=', result_dict[table_name][0][1] + '=')for col in col_list[1:]:i = int(col[1:]) - 1rollback_sql = rollback_sql.replace(col+'=', ',' + result_dict[table_name][i][1]+'=', 1).replace(col+'=','AND ' +result_dict[table_name][i][1]+'=')# 如果only_primary开启且存在主键,where条件里就只列出主键字段if int(only_primary) == 1 and pri_dict[table_name] <> ():sub_where = ''for primary in pri_dict[table_name]:primary_name = primary[1]for condition in rollback_sql.split('WHERE', 1)[1].splitlines():if re.compile('^\s*' + primary_name).match(condition) or re.compile('^\s*AND\s*'+primary_name).match(condition):sub_where = sub_where + condition + '\n'sub_where = re.sub('^\s*AND', '', sub_where, 1)rollback_sql = rollback_sql.split('WHERE', 1)[0] + 'WHERE\n' + sub_whereif sql.split()[0] == 'DELETE':rollback_sql = re.sub('^DELETE FROM', 'INSERT INTO', sql, 1)rollback_sql = re.sub('WHERE\n', 'SET\n', rollback_sql, 1)tablename_pos = 2table_name = rollback_sql.split()[tablename_pos].replace('`', '')# 获取该sql中的所有列col_list = sorted(list(set(re.findall('@\d+', rollback_sql))))# 因为第一个列前面没有逗号或者and,所以单独替换rollback_sql = rollback_sql.replace('@1=', result_dict[table_name][0][1] + '=')for col in col_list[1:]:i = int(col[1:]) - 1rollback_sql = rollback_sql.replace(col+'=', ',' + result_dict[table_name][i][1]+'=',1)rollback_sql = re.sub('\n$',';\n',rollback_sql)#print rollback_sqlfileOutput.write(rollback_sql)except IndexError,e:print "Error:%s" % str(e)sys.exit()print "done!"def usage():help_info="""==========================================================================================Command line options :--help# OUT : print help info-f, --binlog# IN: binlog file. (required)-o, --outfile # OUT : output rollback sql file. (default 'rollback.sql')-h, --host# IN: host. (default '127.0.0.1')-u, --user# IN: user. (required)-p, --password# IN: password. (required)-P, --port# IN: port. (default 3306)--start-datetime# IN: start datetime. (default '1970-01-01 00:00:00')--stop-datetime # IN: stop datetime. default '2070-01-01 00:00:00'--start-position# IN: start position. (default '4')--stop-position # IN: stop position. (default '18446744073709551615')-d, --database# IN: List entries for just this database (No default value).--only-primary# IN: Only list primary key in where condition (default 0)Sample : shell> python binlog_rollback.py -f 'mysql-bin.000001' -o '/tmp/rollback.sql' -h 192.168.0.1 -u 'user' -p 'pwd' -P 3307 -d dbname=========================================================================================="""print help_infosys.exit()if __name__ == '__main__':getopts_parse_binlog()init_col_name()gen_rollback_sql()