127 lines
4.8 KiB
Python
127 lines
4.8 KiB
Python
"""只读核验备份源同版本 SQL Server；2022 PoC 不能获得兼容通过结果。"""
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import argparse
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import json
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import sys
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from datetime import datetime
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from decimal import Decimal
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from pathlib import Path
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import pyodbc
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from sqlalchemy import create_engine
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from sqlalchemy.orm import Session
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sys.path.insert(0, str(Path(__file__).resolve().parents[2] / "backend"))
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from app.core.config import Settings, get_settings
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from app.core.tplus_db import resolve_tplus_settings
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from app.services.tplus.mapping import DETAIL_MAPPINGS, TPLUS_MAPPINGS
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from app.services.tplus.reader import TPlusReader
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def compatibility_settings(path: Path) -> Settings:
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"""复用应用的连接文件校验、URL 转义和 TLS 配置，不修改全局设置。"""
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settings = get_settings().model_copy(
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update={"t_plus_enabled": True, "t_plus_connection_file": str(path)}
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)
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return resolve_tplus_settings(settings)
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def _version_matches(actual: str, expected: str) -> bool:
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def parts(value):
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values = value.split(".")
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return tuple(values + ["0"] * (4 - len(values)))
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return parts(actual) == parts(expected)
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def _inspect_connection(connection, expected_version: str) -> dict:
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cursor = connection.cursor()
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try:
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version = str(
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cursor.execute(
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"SELECT CAST(SERVERPROPERTY('ProductVersion') AS varchar(80))"
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).fetchone()[0]
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)
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values = cursor.execute(
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"SELECT N'中文核验', CAST('12345.6789' AS decimal(19,4)), "
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"CAST('2008-01-02T03:04:05' AS datetime)"
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).fetchone()
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permissions = cursor.execute(
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"SELECT HAS_PERMS_BY_NAME(DB_NAME(),'DATABASE','INSERT'), "
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"HAS_PERMS_BY_NAME(DB_NAME(),'DATABASE','UPDATE'), "
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"HAS_PERMS_BY_NAME(DB_NAME(),'DATABASE','DELETE')"
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).fetchone()
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finally:
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cursor.close()
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checks = {
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"sqlserver_2008r2": version.startswith("10.50."),
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"backup_source_version": _version_matches(version, expected_version),
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"unicode_roundtrip": values[0] == "中文核验",
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"decimal_exact": values[1] == Decimal("12345.6789"),
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"datetime_exact": values[2] == datetime(2008, 1, 2, 3, 4, 5),
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"no_dml_permissions": all(x == 0 for x in permissions),
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}
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return {
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"server_version": version,
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"expected_version": expected_version,
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"driver_name": connection.getinfo(pyodbc.SQL_DRIVER_NAME),
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"driver_version": connection.getinfo(pyodbc.SQL_DRIVER_VER),
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"checks": checks,
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"compatible": all(checks.values()),
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}
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def _inspect_adapter(engine, report: dict) -> None:
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checks = {}
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with Session(engine) as session:
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reader = TPlusReader(session)
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for mapping in (*TPLUS_MAPPINGS, *DETAIL_MAPPINGS):
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try:
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reader.fetch_entity(mapping.entity_type, max_rows=1)
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checks[mapping.entity_type] = True
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except Exception as exc:
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session.rollback()
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checks[mapping.entity_type] = False
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report.setdefault("errors", {})[mapping.entity_type] = type(exc).__name__
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report["adapter_queries"] = checks
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report["compatible"] = report["compatible"] and all(checks.values())
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def main() -> int:
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"""检查版本、中文、金额、日期和写权限，报告不包含凭据或客户记录。"""
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parser = argparse.ArgumentParser(description="SQL Server 2008 R2 兼容性验收")
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parser.add_argument("--connection-file", required=True, type=Path)
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parser.add_argument("--report", required=True, type=Path)
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parser.add_argument("--expected-version", default="10.50.1600", help="备份源版本基准")
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args = parser.parse_args()
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engine = None
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try:
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settings = compatibility_settings(args.connection_file)
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engine = create_engine(
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settings.t_plus_database_url,
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hide_parameters=True,
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connect_args={"timeout": settings.t_plus_connect_timeout},
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)
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connection = engine.raw_connection()
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try:
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connection.driver_connection.timeout = settings.t_plus_query_timeout
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report = _inspect_connection(connection, args.expected_version)
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finally:
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connection.close()
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_inspect_adapter(engine, report)
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except Exception as exc:
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# 驱动异常可能包含完整连接串，报告仅保留类型。
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report = {"compatible": False, "error_type": type(exc).__name__}
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finally:
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if engine is not None:
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engine.dispose()
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args.report.parent.mkdir(parents=True, exist_ok=True)
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args.report.write_text(json.dumps(report, ensure_ascii=False, indent=2), encoding="utf-8")
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print(json.dumps(report, ensure_ascii=False))
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return 0 if report["compatible"] else 2
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if __name__ == "__main__":
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raise SystemExit(main())
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