BUG#26636911 : AdminAPI commands throw error that does not support SSL for Win

The AdminAPI commands throw an error when used on servers with SSL support
on Windows because the Python version used for that platform is the one
bundled with the shell which does not have SSL support.

In non-Windows systems this does not happen because the Python available in
the system is used (not the one bundled with the shell). For those platforms
there is no issue as long as the system Python supports SSL. This issue
was manifested because secure connection are performed by default and to
perform them connector/python requires a Python version with SSL support to
be used.

This patch replaces the use of connector/python with the use mysql-shell
sessions to establish connections to the server for the internal
mysqlprovision tool, always using the Python bundled with the shell
independently of the platform, but no longer requiring Python to have SSL
support.

Author: Paulo Jesus

include/shellcore/python_context.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -191,6 +191,8 @@ class TYPES_COMMON_PUBLIC Python_context {
 
   Interpreter_delegate *_delegate;
 
+  PyObject *db_error() { return _db_error; }
+
 private:
   static PyObject *shell_print(PyObject *self, PyObject *args, const std::string& stream);
   static PyObject *shell_flush(PyObject *self, PyObject *args);
@@ -211,6 +213,8 @@ class TYPES_COMMON_PUBLIC Python_context {
   PyObject *_locals;
   PyThreadState *_main_thread_state;
 
+  PyObject *_db_error;
+
   Python_type_bridger _types;
 
   PyObject *_shell_stderr_module;

modules/adminapi/mod_dba_provisioning_interface.cc

@@ -28,6 +28,7 @@
 #include "utils/utils_file.h"
 
 static const char *kRequiredMySQLProvisionInterfaceVersion = "2.1";
+extern const char *g_mysqlsh_argv0;
 
 using namespace mysqlsh;
 using namespace mysqlsh::dba;
@@ -59,7 +60,7 @@ int ProvisioningInterface::execute_mysqlprovision(const std::string &cmd, const
     if (_local_mysqlprovision_path.empty()) {
       std::string tmp(get_binary_folder());
 #ifdef _WIN32
-      tmp.append("\\mysqlprovision.cmd");
+      tmp.append("\\mysqlprovision.zip");
 #else
       tmp.append("/mysqlprovision");
 #endif
@@ -72,6 +73,10 @@ int ProvisioningInterface::execute_mysqlprovision(const std::string &cmd, const
       _local_mysqlprovision_path = "mysqlprovision";
   }
 
+  args_script.push_back(g_mysqlsh_argv0);
+  args_script.push_back("--py");
+  args_script.push_back("-f");
+
   args_script.push_back(_local_mysqlprovision_path.c_str());
   args_script.push_back(cmd.c_str());
 

python/front_end/mysqlprovision.py

@@ -24,15 +24,12 @@
 the creation of MySQL sandbox instances.
 """
 
-from mysql_gadgets import check_connector_python, check_expected_version,\
+from mysql_gadgets import check_expected_version,\
     check_python_version
 
 # Check Python version requirement
 check_python_version(json_msg=True)
 
-# Check Connector/Python requirement
-check_connector_python(json_msg=True)
-
 # pylint: disable=wrong-import-position,wrong-import-order
 import argparse
 import logging