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oracle.py
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oracle.py
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# -*- coding: UTF-8 -*-
# https://stackoverflow.com/questions/7942520/relationship-between-catalog-schema-user-and-database-instance
import logging
import traceback
import re
import sqlparse
import MySQLdb
import simplejson as json
import threading
import pandas as pd
from common.config import SysConfig
from common.utils.timer import FuncTimer
from sql.utils.sql_utils import (
get_syntax_type,
get_full_sqlitem_list,
get_exec_sqlitem_list,
)
from . import EngineBase
import cx_Oracle
from .models import ResultSet, ReviewSet, ReviewResult
from sql.utils.data_masking import simple_column_mask
logger = logging.getLogger("default")
class OracleEngine(EngineBase):
test_query = "SELECT 1 FROM DUAL"
def __init__(self, instance=None):
super(OracleEngine, self).__init__(instance=instance)
self.service_name = instance.service_name
self.sid = instance.sid
def get_connection(self, db_name=None):
if self.conn:
return self.conn
if self.sid:
dsn = cx_Oracle.makedsn(self.host, self.port, self.sid)
self.conn = cx_Oracle.connect(
self.user, self.password, dsn=dsn, encoding="UTF-8", nencoding="UTF-8"
)
elif self.service_name:
dsn = cx_Oracle.makedsn(
self.host, self.port, service_name=self.service_name
)
self.conn = cx_Oracle.connect(
self.user, self.password, dsn=dsn, encoding="UTF-8", nencoding="UTF-8"
)
else:
raise ValueError("sid 和 dsn 均未填写, 请联系管理页补充该实例配置.")
return self.conn
@property
def name(self):
return "Oracle"
@property
def info(self):
return "Oracle engine"
@property
def auto_backup(self):
"""是否支持备份"""
return True
@staticmethod
def get_backup_connection():
"""备份库连接"""
archer_config = SysConfig()
backup_host = archer_config.get("inception_remote_backup_host")
backup_port = int(archer_config.get("inception_remote_backup_port", 3306))
backup_user = archer_config.get("inception_remote_backup_user")
backup_password = archer_config.get("inception_remote_backup_password")
return MySQLdb.connect(
host=backup_host,
port=backup_port,
user=backup_user,
passwd=backup_password,
charset="utf8mb4",
autocommit=True,
)
@property
def server_version(self):
conn = self.get_connection()
version = conn.version
return tuple([n for n in version.split(".")[:3]])
def get_all_databases(self):
"""获取数据库列表， 返回resultSet 供上层调用， 底层实际上是获取oracle的schema列表"""
return self._get_all_schemas()
def _get_all_databases(self):
"""获取数据库列表, 返回一个ResultSet"""
sql = "select name from v$database"
result = self.query(sql=sql)
db_list = [row[0] for row in result.rows]
result.rows = db_list
return result
def _get_all_instances(self):
"""获取实例列表, 返回一个ResultSet"""
sql = "select instance_name from v$instance"
result = self.query(sql=sql)
instance_list = [row[0] for row in result.rows]
result.rows = instance_list
return result
def _get_all_schemas(self):
"""
获取模式列表
:return:
"""
result = self.query(sql="SELECT username FROM all_users order by username")
sysschema = (
"AUD_SYS",
"ANONYMOUS",
"APEX_030200",
"APEX_PUBLIC_USER",
"APPQOSSYS",
"BI USERS",
"CTXSYS",
"DBSNMP",
"DIP USERS",
"EXFSYS",
"FLOWS_FILES",
"HR USERS",
"IX USERS",
"MDDATA",
"MDSYS",
"MGMT_VIEW",
"OE USERS",
"OLAPSYS",
"ORACLE_OCM",
"ORDDATA",
"ORDPLUGINS",
"ORDSYS",
"OUTLN",
"OWBSYS",
"OWBSYS_AUDIT",
"PM USERS",
"SCOTT",
"SH USERS",
"SI_INFORMTN_SCHEMA",
"SPATIAL_CSW_ADMIN_USR",
"SPATIAL_WFS_ADMIN_USR",
"SYS",
"SYSMAN",
"SYSTEM",
"WMSYS",
"XDB",
"XS$NULL",
"DIP",
"OJVMSYS",
"LBACSYS",
)
schema_list = [row[0] for row in result.rows if row[0] not in sysschema]
result.rows = schema_list
return result
def get_all_tables(self, db_name, **kwargs):
"""获取table 列表, 返回一个ResultSet"""
sql = f"""SELECT table_name FROM all_tables WHERE nvl(tablespace_name, 'no tablespace') NOT IN ('SYSTEM', 'SYSAUX') AND OWNER = '{db_name}' AND IOT_NAME IS NULL AND DURATION IS NULL order by table_name
"""
result = self.query(db_name=db_name, sql=sql)
tb_list = [row[0] for row in result.rows if row[0] not in ["test"]]
result.rows = tb_list
return result
def get_group_tables_by_db(self, db_name):
data = {}
table_list_sql = f"""SELECT table_name, comments FROM dba_tab_comments WHERE owner = '{db_name}'"""
result = self.query(db_name=db_name, sql=table_list_sql)
for row in result.rows:
table_name, table_cmt = row[0], row[1]
if table_name[0] not in data:
data[table_name[0]] = list()
data[table_name[0]].append([table_name, table_cmt])
return data
def get_table_meta_data(self, db_name, tb_name, **kwargs):
"""数据字典页面使用：获取表格的元信息，返回一个dict{column_list: [], rows: []}"""
meta_data_sql = f"""select tcs.TABLE_NAME, --表名
tcs.COMMENTS, --表注释
tcs.TABLE_TYPE, --表/试图 table/view
ss.SEGMENT_TYPE, --段类型 堆表/分区表/IOT表
ts.TABLESPACE_NAME, --表空间
ts.COMPRESSION, --压缩属性
bss.NUM_ROWS, --表中的记录数
bss.BLOCKS, --表中数据所占的数据块数
bss.EMPTY_BLOCKS, --表中的空块数
bss.AVG_SPACE, --数据块中平均的使用空间
bss.CHAIN_CNT, --表中行连接和行迁移的数量
bss.AVG_ROW_LEN, --每条记录的平均长度
bss.LAST_ANALYZED --上次统计信息搜集的时间
from dba_tab_comments tcs
left join dba_segments ss
on ss.owner = tcs.OWNER
and ss.segment_name = tcs.TABLE_NAME
left join dba_tables ts
on ts.OWNER = tcs.OWNER
and ts.TABLE_NAME = tcs.TABLE_NAME
left join DBA_TAB_STATISTICS bss
on bss.OWNER = tcs.owner
and bss.TABLE_NAME = tcs.table_name
WHERE
tcs.OWNER='{db_name}'
AND tcs.TABLE_NAME='{tb_name}'"""
_meta_data = self.query(db_name=db_name, sql=meta_data_sql)
return {"column_list": _meta_data.column_list, "rows": _meta_data.rows[0]}
def get_table_desc_data(self, db_name, tb_name, **kwargs):
"""获取表格字段信息"""
desc_sql = f"""SELECT bcs.COLUMN_NAME "列名",
ccs.comments "列注释" ,
bcs.data_type || case
when bcs.data_precision is not null and nvl(data_scale, 0) > 0 then
'(' || bcs.data_precision || ',' || data_scale || ')'
when bcs.data_precision is not null and nvl(data_scale, 0) = 0 then
'(' || bcs.data_precision || ')'
when bcs.data_precision is null and data_scale is not null then
'(*,' || data_scale || ')'
when bcs.char_length > 0 then
'(' || bcs.char_length || case char_used
when 'B' then
' Byte'
when 'C' then
' Char'
else
null
end || ')'
end "字段类型",
bcs.DATA_DEFAULT "字段默认值",
decode(nullable, 'N', ' NOT NULL') "是否为空",
ics.INDEX_NAME "所属索引",
acs.constraint_type "约束类型"
FROM dba_tab_columns bcs
left join dba_col_comments ccs
on bcs.OWNER = ccs.owner
and bcs.TABLE_NAME = ccs.table_name
and bcs.COLUMN_NAME = ccs.column_name
left join dba_ind_columns ics
on bcs.OWNER = ics.TABLE_OWNER
and bcs.TABLE_NAME = ics.table_name
and bcs.COLUMN_NAME = ics.column_name
left join dba_constraints acs
on acs.owner = ics.TABLE_OWNER
and acs.table_name = ics.TABLE_NAME
and acs.index_name = ics.INDEX_NAME
WHERE
bcs.OWNER='{db_name}'
AND bcs.TABLE_NAME='{tb_name}'
ORDER BY bcs.COLUMN_NAME"""
_desc_data = self.query(db_name=db_name, sql=desc_sql)
return {"column_list": _desc_data.column_list, "rows": _desc_data.rows}
def get_table_index_data(self, db_name, tb_name, **kwargs):
"""获取表格索引信息"""
index_sql = f""" SELECT ais.INDEX_NAME "索引名称",
ais.uniqueness "唯一性",
ais.index_type "索引类型",
ais.compression "压缩属性",
ais.tablespace_name "表空间",
ais.status "状态",
ais.partitioned "分区",
pis.partitioning_type "分区状态",
pis.locality "是否为LOCAL索引",
pis.alignment "前导列索引"
FROM dba_indexes ais
left join DBA_PART_INDEXES pis
on ais.owner = pis.owner
and ais.index_name = pis.index_name
WHERE
ais.owner = '{db_name}'
AND ais.table_name = '{tb_name}'"""
_index_data = self.query(db_name, index_sql)
return {"column_list": _index_data.column_list, "rows": _index_data.rows}
def get_tables_metas_data(self, db_name, **kwargs):
"""获取数据库所有表格信息，用作数据字典导出接口"""
table_metas = []
sql_cols = f""" SELECT bcs.TABLE_NAME TABLE_NAME,
tcs.COMMENTS TABLE_COMMENTS,
bcs.COLUMN_NAME COLUMN_NAME,
bcs.data_type || case
when bcs.data_precision is not null and nvl(data_scale, 0) > 0 then
'(' || bcs.data_precision || ',' || data_scale || ')'
when bcs.data_precision is not null and nvl(data_scale, 0) = 0 then
'(' || bcs.data_precision || ')'
when bcs.data_precision is null and data_scale is not null then
'(*,' || data_scale || ')'
when bcs.char_length > 0 then
'(' || bcs.char_length || case char_used
when 'B' then
' Byte'
when 'C' then
' Char'
else
null
end || ')'
end data_type,
bcs.DATA_DEFAULT,
decode(nullable, 'N', ' NOT NULL') nullable,
t1.index_name,
lcs.comments comments
FROM dba_tab_columns bcs
left join dba_col_comments lcs
on bcs.OWNER = lcs.owner
and bcs.TABLE_NAME = lcs.table_name
and bcs.COLUMN_NAME = lcs.column_name
left join dba_tab_comments tcs
on bcs.OWNER = tcs.OWNER
and bcs.TABLE_NAME = tcs.TABLE_NAME
left join (select acs.OWNER,
acs.TABLE_NAME,
scs.column_name,
acs.index_name
from dba_cons_columns scs
join dba_constraints acs
on acs.constraint_name = scs.constraint_name
and acs.owner = scs.OWNER
where acs.constraint_type = 'P') t1
on t1.OWNER = bcs.OWNER
AND t1.TABLE_NAME = bcs.TABLE_NAME
AND t1.column_name = bcs.COLUMN_NAME
WHERE bcs.OWNER = '{db_name}'
order by bcs.TABLE_NAME, comments"""
cols_req = self.query(sql=sql_cols, close_conn=False).rows
# 给查询结果定义列名，query_engine.query的游标是0 1 2
cols_df = pd.DataFrame(
cols_req,
columns=[
"TABLE_NAME",
"TABLE_COMMENTS",
"COLUMN_NAME",
"COLUMN_TYPE",
"COLUMN_DEFAULT",
"IS_NULLABLE",
"COLUMN_KEY",
"COLUMN_COMMENT",
],
)
# 获得表名称去重
col_list = cols_df.drop_duplicates("TABLE_NAME").to_dict("records")
for cl in col_list:
_meta = dict()
engine_keys = [
{"key": "COLUMN_NAME", "value": "字段名"},
{"key": "COLUMN_TYPE", "value": "数据类型"},
{"key": "COLUMN_DEFAULT", "value": "默认值"},
{"key": "IS_NULLABLE", "value": "允许非空"},
{"key": "COLUMN_KEY", "value": "是否主键"},
{"key": "COLUMN_COMMENT", "value": "备注"},
]
_meta["ENGINE_KEYS"] = engine_keys
_meta["TABLE_INFO"] = {
"TABLE_NAME": cl["TABLE_NAME"],
"TABLE_COMMENTS": cl["TABLE_COMMENTS"],
}
table_name = cl["TABLE_NAME"]
# 查询DataFrame中满足表名的记录，并转为list
_meta["COLUMNS"] = cols_df.query("TABLE_NAME == @table_name").to_dict(
"records"
)
table_metas.append(_meta)
return table_metas
def get_all_objects(self, db_name, **kwargs):
"""获取object_name 列表, 返回一个ResultSet"""
sql = f"""SELECT object_name FROM all_objects WHERE OWNER = '{db_name}' """
result = self.query(db_name=db_name, sql=sql)
tb_list = [row[0] for row in result.rows if row[0] not in ["test"]]
result.rows = tb_list
return result
def get_all_columns_by_tb(self, db_name, tb_name, **kwargs):
"""获取所有字段, 返回一个ResultSet"""
result = self.describe_table(db_name, tb_name)
column_list = [row[0] for row in result.rows]
result.rows = column_list
return result
def describe_table(self, db_name, tb_name, **kwargs):
"""return ResultSet"""
# https://www.thepolyglotdeveloper.com/2015/01/find-tables-oracle-database-column-name/
sql = f"""SELECT
a.column_name,
data_type,
data_length,
nullable,
data_default,
b.comments
FROM all_tab_cols a, all_col_comments b
WHERE a.table_name = b.table_name
and a.owner = b.OWNER
and a.COLUMN_NAME = b.COLUMN_NAME
and a.table_name = '{tb_name}' and a.owner = '{db_name}' order by column_id
"""
result = self.query(db_name=db_name, sql=sql)
return result
def object_name_check(self, db_name=None, object_name=""):
"""获取table 列表, 返回一个ResultSet"""
if "." in object_name:
schema_name = object_name.split(".")[0]
object_name = object_name.split(".")[1]
if '"' in schema_name:
schema_name = schema_name.replace('"', "")
if '"' in object_name:
object_name = object_name.replace('"', "")
else:
object_name = object_name.upper()
else:
schema_name = schema_name.upper()
if '"' in object_name:
object_name = object_name.replace('"', "")
else:
object_name = object_name.upper()
else:
schema_name = db_name
if '"' in object_name:
object_name = object_name.replace('"', "")
else:
object_name = object_name.upper()
sql = f""" SELECT object_name FROM all_objects WHERE OWNER = '{schema_name}' and OBJECT_NAME = '{object_name}' """
result = self.query(db_name=db_name, sql=sql, close_conn=False)
if result.affected_rows > 0:
return True
else:
return False
@staticmethod
def get_sql_first_object_name(sql=""):
"""获取sql文本中的object_name"""
object_name = ""
if re.match(r"^create\s+table\s", sql, re.M | re.IGNORECASE):
object_name = re.match(
r"^create\s+table\s(.+?)(\s|\()", sql, re.M | re.IGNORECASE
).group(1)
elif re.match(r"^create\s+index\s", sql, re.M | re.IGNORECASE):
object_name = re.match(
r"^create\s+index\s(.+?)\s", sql, re.M | re.IGNORECASE
).group(1)
elif re.match(r"^create\s+unique\s+index\s", sql, re.M | re.IGNORECASE):
object_name = re.match(
r"^create\s+unique\s+index\s(.+?)\s", sql, re.M | re.IGNORECASE
).group(1)
elif re.match(r"^create\s+sequence\s", sql, re.M | re.IGNORECASE):
object_name = re.match(
r"^create\s+sequence\s(.+?)(\s|$)", sql, re.M | re.IGNORECASE
).group(1)
elif re.match(r"^alter\s+table\s", sql, re.M | re.IGNORECASE):
object_name = re.match(
r"^alter\s+table\s(.+?)\s", sql, re.M | re.IGNORECASE
).group(1)
elif re.match(r"^create\s+function\s", sql, re.M | re.IGNORECASE):
object_name = re.match(
r"^create\s+function\s(.+?)(\s|\()", sql, re.M | re.IGNORECASE
).group(1)
elif re.match(r"^create\s+view\s", sql, re.M | re.IGNORECASE):
object_name = re.match(
r"^create\s+view\s(.+?)\s", sql, re.M | re.IGNORECASE
).group(1)
elif re.match(r"^create\s+procedure\s", sql, re.M | re.IGNORECASE):
object_name = re.match(
r"^create\s+procedure\s(.+?)\s", sql, re.M | re.IGNORECASE
).group(1)
elif re.match(r"^create\s+package\s+body", sql, re.M | re.IGNORECASE):
object_name = re.match(
r"^create\s+package\s+body\s(.+?)\s", sql, re.M | re.IGNORECASE
).group(1)
elif re.match(r"^create\s+package\s", sql, re.M | re.IGNORECASE):
object_name = re.match(
r"^create\s+package\s(.+?)\s", sql, re.M | re.IGNORECASE
).group(1)
else:
return object_name.strip()
return object_name.strip()
@staticmethod
def check_create_index_table(sql="", object_name_list=None, db_name=""):
object_name_list = object_name_list or set()
if re.match(r"^create\s+index\s", sql):
table_name = re.match(
r"^create\s+index\s+.+\s+on\s(.+?)(\(|\s\()", sql, re.M
).group(1)
if "." not in table_name:
table_name = f"{db_name}.{table_name}"
if table_name in object_name_list:
return True
else:
return False
elif re.match(r"^create\s+unique\s+index\s", sql):
table_name = re.match(
r"^create\s+unique\s+index\s+.+\s+on\s(.+?)(\(|\s\()", sql, re.M
).group(1)
if "." not in table_name:
table_name = f"{db_name}.{table_name}"
if table_name in object_name_list:
return True
else:
return False
else:
return False
@staticmethod
def get_dml_table(sql="", object_name_list=None, db_name=""):
object_name_list = object_name_list or set()
if re.match(r"^update", sql):
table_name = re.match(r"^update\s(.+?)\s", sql, re.M).group(1)
if "." not in table_name:
table_name = f"{db_name}.{table_name}"
if table_name in object_name_list:
return True
else:
return False
elif re.match(r"^delete", sql):
table_name = re.match(r"^delete\s+from\s+([\w-]+)\s*", sql, re.M).group(1)
if "." not in table_name:
table_name = f"{db_name}.{table_name}"
if table_name in object_name_list:
return True
else:
return False
elif re.match(r"^insert\s", sql):
table_name = re.match(
r"^insert\s+((into)|(all\s+into)|(all\s+when\s(.+?)into))\s+(.+?)(\(|\s)",
sql,
re.M,
).group(6)
if "." not in table_name:
table_name = f"{db_name}.{table_name}"
if table_name in object_name_list:
return True
else:
return False
else:
return False
@staticmethod
def where_check(sql=""):
if re.match(r"^update((?!where).)*$|^delete((?!where).)*$", sql):
return True
else:
parsed = sqlparse.parse(sql)[0]
flattened = list(parsed.flatten())
n_skip = 0
flattened = flattened[: len(flattened) - n_skip]
logical_operators = (
"AND",
"OR",
"NOT",
"BETWEEN",
"ORDER BY",
"GROUP BY",
"HAVING",
)
for t in reversed(flattened):
if t.is_keyword:
return True
return False
def explain_check(self, db_name=None, sql="", close_conn=False):
# 使用explain进行支持的SQL语法审核，连接需不中断，防止数据库不断fork进程的大批量消耗
result = {"msg": "", "rows": 0}
try:
conn = self.get_connection()
cursor = conn.cursor()
if db_name:
cursor.execute(f' ALTER SESSION SET CURRENT_SCHEMA = "{db_name}" ')
if re.match(r"^explain", sql, re.I):
sql = sql
else:
sql = f"explain plan for {sql}"
sql = sql.rstrip(";")
cursor.execute(sql)
# 获取影响行数
cursor.execute(f"select CARDINALITY from SYS.PLAN_TABLE$ where id = 0")
rows = cursor.fetchone()
conn.rollback()
if not rows:
result["rows"] = 0
else:
result["rows"] = rows[0]
except Exception as e:
logger.warning(f"Oracle 语句执行报错，语句：{sql}，错误信息{traceback.format_exc()}")
result["msg"] = str(e)
finally:
if close_conn:
self.close()
return result
def query_check(self, db_name=None, sql=""):
# 查询语句的检查、注释去除、切分
result = {"msg": "", "bad_query": False, "filtered_sql": sql, "has_star": False}
keyword_warning = ""
star_patter = r"(^|,|\s)\*(\s|\(|$)"
# 删除注释语句，进行语法判断，执行第一条有效sql
try:
sql = sqlparse.format(sql, strip_comments=True)
sql = sqlparse.split(sql)[0]
result["filtered_sql"] = re.sub(r";$", "", sql.strip())
sql_lower = sql.lower()
except IndexError:
result["bad_query"] = True
result["msg"] = "没有有效的SQL语句"
return result
if re.match(r"^select|^with|^explain", sql_lower) is None:
result["bad_query"] = True
result["msg"] = "不支持语法!"
return result
if re.search(star_patter, sql_lower) is not None:
keyword_warning += "禁止使用 * 关键词\n"
result["has_star"] = True
if result.get("bad_query") or result.get("has_star"):
result["msg"] = keyword_warning
return result
def filter_sql(self, sql="", limit_num=0):
sql_lower = sql.lower()
# 对查询sql增加limit限制
if re.match(r"^select|^with", sql_lower) and not (
re.match(r"^select\s+sql_audit.", sql_lower)
and sql_lower.find(" sql_audit where rownum <= ") != -1
):
sql = f"select sql_audit.* from ({sql.rstrip(';')}) sql_audit where rownum <= {limit_num}"
return sql.strip()
def query(self, db_name=None, sql="", limit_num=0, close_conn=True, **kwargs):
"""返回 ResultSet"""
result_set = ResultSet(full_sql=sql)
try:
conn = self.get_connection()
cursor = conn.cursor()
if db_name:
cursor.execute(f' ALTER SESSION SET CURRENT_SCHEMA = "{db_name}" ')
sql = sql.rstrip(";")
# 支持oralce查询SQL执行计划语句
if re.match(r"^explain", sql, re.I):
cursor.execute(sql)
# 重置SQL文本，获取SQL执行计划
sql = f"select PLAN_TABLE_OUTPUT from table(dbms_xplan.display)"
cursor.execute(sql)
fields = cursor.description
if any(x[1] == cx_Oracle.CLOB for x in fields):
rows = [
tuple([(c.read() if type(c) == cx_Oracle.LOB else c) for c in r])
for r in cursor
]
if int(limit_num) > 0:
rows = rows[0 : int(limit_num)]
else:
if int(limit_num) > 0:
rows = cursor.fetchmany(int(limit_num))
else:
rows = cursor.fetchall()
result_set.column_list = [i[0] for i in fields] if fields else []
result_set.rows = [tuple(x) for x in rows]
result_set.affected_rows = len(result_set.rows)
except Exception as e:
logger.warning(f"Oracle 语句执行报错，语句：{sql}，错误信息{traceback.format_exc()}")
result_set.error = str(e)
finally:
if close_conn:
self.close()
return result_set
def query_masking(self, db_name=None, sql="", resultset=None):
"""简单字段脱敏规则, 仅对select有效"""
if re.match(r"^select", sql, re.I):
filtered_result = simple_column_mask(self.instance, resultset)
filtered_result.is_masked = True
else:
filtered_result = resultset
return filtered_result
def execute_check(self, db_name=None, sql="", close_conn=True):
"""
上线单执行前的检查, 返回Review set
update by Jan.song 20200302
使用explain对数据修改预计进行检测
"""
config = SysConfig()
check_result = ReviewSet(full_sql=sql)
# explain支持的语法
explain_re = r"^merge|^update|^delete|^insert|^create\s+table|^create\s+index|^create\s+unique\s+index"
# 禁用/高危语句检查
line = 1
# 保存SQL中的新建对象
object_name_list = set()
critical_ddl_regex = config.get("critical_ddl_regex", "")
p = re.compile(critical_ddl_regex)
check_result.syntax_type = 2 # TODO 工单类型 0、其他 1、DDL，2、DML
try:
sqlitemList = get_full_sqlitem_list(sql, db_name)
for sqlitem in sqlitemList:
sql_lower = sqlitem.statement.lower().rstrip(";")
sql_nolower = sqlitem.statement.rstrip(";")
object_name = self.get_sql_first_object_name(sql=sql_lower)
if "." in object_name:
object_name = object_name
else:
object_name = f"""{db_name}.{object_name}"""
object_name_list.add(object_name)
# 禁用语句
if re.match(r"^select|^with|^explain", sql_lower):
result = ReviewResult(
id=line,
errlevel=2,
stagestatus="驳回不支持语句",
errormessage="仅支持DML和DDL语句，查询语句请使用SQL查询功能！",
sql=sqlitem.statement,
)
# 高危语句
elif critical_ddl_regex and p.match(sql_lower.strip()):
result = ReviewResult(
id=line,
errlevel=2,
stagestatus="驳回高危SQL",
errormessage="禁止提交匹配" + critical_ddl_regex + "条件的语句！",
sql=sqlitem.statement,
)
# 驳回未带where数据修改语句，如确实需做全部删除或更新，显示的带上where 1=1
elif re.match(
r"^update((?!where).)*$|^delete((?!where).)*$", sql_lower
):
result = ReviewResult(
id=line,
errlevel=2,
stagestatus="驳回未带where数据修改",
errormessage="数据修改需带where条件！",
sql=sqlitem.statement,
)
# 驳回事务控制，会话控制SQL
elif re.match(r"^set|^rollback|^exit", sql_lower):
result = ReviewResult(
id=line,
errlevel=2,
stagestatus="SQL中不能包含^set|^rollback|^exit",
errormessage="SQL中不能包含^set|^rollback|^exit",
sql=sqlitem.statement,
)
# 通过explain对SQL做语法语义检查
elif re.match(explain_re, sql_lower) and sqlitem.stmt_type == "SQL":
if self.check_create_index_table(
db_name=db_name,
sql=sql_lower,
object_name_list=object_name_list,
):
result = ReviewResult(
id=line,
errlevel=1,
stagestatus="WARNING:新建表的新建索引语句暂无法检测！",
errormessage="WARNING:新建表的新建索引语句暂无法检测！",
stmt_type=sqlitem.stmt_type,
object_owner=sqlitem.object_owner,
object_type=sqlitem.object_type,
object_name=sqlitem.object_name,
sql=sqlitem.statement,
)
elif len(object_name_list) > 0 and self.get_dml_table(
db_name=db_name,
sql=sql_lower,
object_name_list=object_name_list,
):
result = ReviewResult(
id=line,
errlevel=1,
stagestatus="WARNING:新建表的数据修改暂无法检测！",
errormessage="WARNING:新建表的数据修改暂无法检测！",
stmt_type=sqlitem.stmt_type,
object_owner=sqlitem.object_owner,
object_type=sqlitem.object_type,
object_name=sqlitem.object_name,
sql=sqlitem.statement,
)
else:
result_set = self.explain_check(
db_name=db_name, sql=sqlitem.statement, close_conn=False
)
if result_set["msg"]:
result = ReviewResult(
id=line,
errlevel=2,
stagestatus="explain语法检查未通过！",
errormessage=result_set["msg"],
sql=sqlitem.statement,
)
else:
# 对create table\create index\create unique index语法做对象存在性检测
if re.match(
r"^create\s+table|^create\s+index|^create\s+unique\s+index",
sql_lower,
):
object_name = self.get_sql_first_object_name(
sql=sql_nolower
)
# 保存create对象对后续SQL做存在性判断
if "." in object_name:
schema_name = object_name.split(".")[0]
object_name = object_name.split(".")[1]
if '"' in schema_name:
schema_name = schema_name
if '"' not in object_name:
object_name = object_name.upper()
else:
schema_name = schema_name.upper()
if '"' not in object_name:
object_name = object_name.upper()
else:
schema_name = '"' + db_name + '"'
if '"' not in object_name:
object_name = object_name.upper()
object_name = f"""{schema_name}.{object_name}"""
if (
self.object_name_check(
db_name=db_name, object_name=object_name
)
or object_name in object_name_list
):
result = ReviewResult(
id=line,
errlevel=2,
stagestatus=f"""{object_name}对象已经存在！""",
errormessage=f"""{object_name}对象已经存在！""",
sql=sqlitem.statement,
)
else:
object_name_list.add(object_name)
if result_set["rows"] > 1000:
result = ReviewResult(
id=line,
errlevel=1,
stagestatus="影响行数大于1000，请关注",
errormessage="影响行数大于1000，请关注",
sql=sqlitem.statement,
stmt_type=sqlitem.stmt_type,
object_owner=sqlitem.object_owner,
object_type=sqlitem.object_type,
object_name=sqlitem.object_name,
affected_rows=result_set["rows"],
execute_time=0,
)
else:
result = ReviewResult(
id=line,
errlevel=0,
stagestatus="Audit completed",
errormessage="None",
sql=sqlitem.statement,
stmt_type=sqlitem.stmt_type,
object_owner=sqlitem.object_owner,
object_type=sqlitem.object_type,
object_name=sqlitem.object_name,
affected_rows=result_set["rows"],
execute_time=0,
)
else:
if result_set["rows"] > 1000:
result = ReviewResult(
id=line,
errlevel=1,
stagestatus="影响行数大于1000，请关注",
errormessage="影响行数大于1000，请关注",
sql=sqlitem.statement,
stmt_type=sqlitem.stmt_type,
object_owner=sqlitem.object_owner,
object_type=sqlitem.object_type,
object_name=sqlitem.object_name,
affected_rows=result_set["rows"],
execute_time=0,
)
else:
result = ReviewResult(
id=line,
errlevel=0,
stagestatus="Audit completed",
errormessage="None",
sql=sqlitem.statement,
stmt_type=sqlitem.stmt_type,
object_owner=sqlitem.object_owner,
object_type=sqlitem.object_type,
object_name=sqlitem.object_name,
affected_rows=result_set["rows"],
execute_time=0,
)
# 其它无法用explain判断的语句
else:
# 对alter table做对象存在性检查
if re.match(r"^alter\s+table\s", sql_lower):
object_name = self.get_sql_first_object_name(sql=sql_nolower)
if "." in object_name:
schema_name = object_name.split(".")[0]
object_name = object_name.split(".")[1]
if '"' in schema_name:
schema_name = schema_name
if '"' not in object_name:
object_name = object_name.upper()
else:
schema_name = schema_name.upper()
if '"' not in object_name:
object_name = object_name.upper()
else:
schema_name = '"' + db_name + '"'
if '"' not in object_name:
object_name = object_name.upper()
object_name = f"""{schema_name}.{object_name}"""
if (
not self.object_name_check(
db_name=db_name, object_name=object_name
)
and object_name not in object_name_list
):
result = ReviewResult(
id=line,
errlevel=2,
stagestatus=f"""{object_name}对象不存在！""",
errormessage=f"""{object_name}对象不存在！""",
sql=sqlitem.statement,
)
else:
result = ReviewResult(
id=line,
errlevel=1,
stagestatus="当前平台，此语法不支持审核！",
errormessage="当前平台，此语法不支持审核！",
sql=sqlitem.statement,
stmt_type=sqlitem.stmt_type,
object_owner=sqlitem.object_owner,
object_type=sqlitem.object_type,
object_name=sqlitem.object_name,
affected_rows=0,
execute_time=0,
)
# 对create做对象存在性检查
elif re.match(r"^create", sql_lower):
object_name = self.get_sql_first_object_name(sql=sql_nolower)
if "." in object_name:
schema_name = object_name.split(".")[0]
object_name = object_name.split(".")[1]
if '"' in schema_name:
schema_name = schema_name
if '"' not in object_name:
object_name = object_name.upper()
else:
schema_name = schema_name.upper()
if '"' not in object_name:
object_name = object_name.upper()
else:
schema_name = '"' + db_name + '"'
if '"' not in object_name:
object_name = object_name.upper()
object_name = f"""{schema_name}.{object_name}"""
if (
self.object_name_check(
db_name=db_name, object_name=object_name
)
or object_name in object_name_list
):
result = ReviewResult(
id=line,
errlevel=2,
stagestatus=f"""{object_name}对象已经存在！""",
errormessage=f"""{object_name}对象已经存在！""",
sql=sqlitem.statement,
)
else:
object_name_list.add(object_name)
result = ReviewResult(
id=line,
errlevel=1,
stagestatus="当前平台，此语法不支持审核！",
errormessage="当前平台，此语法不支持审核！",
sql=sqlitem.statement,
stmt_type=sqlitem.stmt_type,
object_owner=sqlitem.object_owner,
object_type=sqlitem.object_type,
object_name=sqlitem.object_name,
affected_rows=0,
execute_time=0,
)
else:
result = ReviewResult(
id=line,
errlevel=1,
stagestatus="当前平台，此语法不支持审核！",
errormessage="当前平台，此语法不支持审核！",
sql=sqlitem.statement,
stmt_type=sqlitem.stmt_type,
object_owner=sqlitem.object_owner,
object_type=sqlitem.object_type,
object_name=sqlitem.object_name,