FIX: Access Token Issue (EntraID Auth)

[bewithgaurav]

Work Item / Issue Reference

AB#<WORK_ITEM_ID>

GitHub Issue: #286

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Summary

Reintroduce Static Buffer as a temporary hotfix, will keep a new task to remove static tokens.

[github-actions]

📊 Code Coverage Report

🔥 Diff Coverage 0%

🎯 Overall Coverage 74%

📈 Total Lines Covered: 4179 out of 5607 📁 Project: mssql-python

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Diff Coverage

Diff: main...HEAD, staged and unstaged changes

• mssql_python/pybind/connection/connection.cpp (0.0%): Missing lines 176

Summary

• Total: 1 line
• Missing: 1 line
• Coverage: 0%

mssql_python/pybind/connection/connection.cpp

Lines 172-180

  172 SQLRETURN Connection::setAttribute(SQLINTEGER attribute, py::object value) {
  173     LOG("Setting SQL attribute");
  174     SQLPOINTER ptr = nullptr;
  175     SQLINTEGER length = 0;
! 176     static std::string buffer; // to hold sensitive data temporarily
  177 
  178     if (py::isinstance<py::int_>(value)) {
  179         int intValue = value.cast<int>();
  180         ptr = reinterpret_cast<SQLPOINTER>(static_cast<uintptr_t>(intValue));

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📋 Files Needing Attention

📉 Files with overall lowest coverage (click to expand)

mssql_python.pybind.connection.connection.cpp: 68.3%
mssql_python.ddbc_bindings.py: 68.5%
mssql_python.pybind.ddbc_bindings.cpp: 69.3%
mssql_python.pybind.connection.connection_pool.cpp: 78.9%
mssql_python.cursor.py: 79.7%
mssql_python.connection.py: 81.7%
mssql_python.helpers.py: 84.7%
mssql_python.auth.py: 85.3%
mssql_python.type.py: 86.8%
mssql_python.pooling.py: 87.5%

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[Copilot]

Pull Request Overview

This PR reintroduces a static buffer as a temporary hotfix for an access token issue, addressing GitHub Issue #286. The change modifies how sensitive data is stored temporarily during SQL attribute setting.

• Converts a local string buffer to a static buffer for holding sensitive data

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