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/* * Copyright (c) 2015, 2023, Oracle and/or its affiliates. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2.0, * as published by the Free Software Foundation. * * This program is also distributed with certain software (including * but not limited to OpenSSL) that is licensed under separate terms, * as designated in a particular file or component or in included license * documentation. The authors of MySQL hereby grant you an additional * permission to link the program and your derivative works with the * separately licensed software that they have included with MySQL. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License, version 2.0, for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA */ #include "crud_cmd_handler.h" #include "admin_cmd_handler.h" #include "xpl_log.h" #include "ngs/mysqlx/getter_any.h" #include "expr_generator.h" #include "sql_data_context.h" #include "xpl_server.h" #include "xpl_session.h" #include "xpl_dispatcher.h" #include "xpl_error.h" #include "ngs_common/protocol_protobuf.h" #include "notices.h" #include "expect.h" namespace { class Stmt { public: ngs::Error_code execute(xpl::Sql_data_context &da, ngs::Protocol_encoder &proto, const bool show_warnings, const bool compact_metadata, const std::string &query, const ::google::protobuf::RepeatedPtrField< ::Mysqlx::Datatypes::Any > &args) { const int args_size = args.size(); if (0 == args_size) return execute(da, proto, show_warnings, compact_metadata, query.data(), query.length()); m_qb.clear(); m_qb.put(query); try { for (int i = 0; i < args_size; ++i) { ngs::Getter_any::put_scalar_value_to_functor(args.Get(i), *this); } } catch (const ngs::Error_code &error) { return error; } return execute(da, proto, show_warnings, compact_metadata, m_qb.get().data(), m_qb.get().length()); } ngs::Error_code execute(xpl::Sql_data_context &da, ngs::Protocol_encoder &proto, const bool show_warnings, const bool compact_metadata, const char* query, std::size_t query_len) { xpl::Sql_data_context::Result_info info; ngs::Error_code error = da.execute_sql_and_stream_results(query, query_len, compact_metadata, info); if (!error) { if (info.num_warnings > 0 && show_warnings) xpl::notices::send_warnings(da, proto); xpl::notices::send_rows_affected(proto, info.affected_rows); if (info.last_insert_id > 0) xpl::notices::send_generated_insert_id(proto, info.last_insert_id); if (!info.message.empty()) xpl::notices::send_message(proto, info.message); proto.send_exec_ok(); } else { if (show_warnings) xpl::notices::send_warnings(da, proto, true); } return error; } void operator() () { static const char *value_null = "NULL"; m_qb.format() % xpl::Query_formatter::No_escape<const char*>(value_null); } template <typename Value_type> void operator() (const Value_type &value) { m_qb.format() % value; } private: xpl::Query_string_builder m_qb; }; ngs::Error_code on_stmt_execute(xpl::Session &session, const Mysqlx::Sql::StmtExecute &msg) { log_debug("%s: %s", session.client().client_id(), msg.stmt().c_str()); if (msg.namespace_() == "sql" || !msg.has_namespace_()) { session.update_status<&xpl::Common_status_variables::m_stmt_execute_sql>(); return Stmt().execute(session.data_context(), session.proto(), session.options().get_send_warnings(), msg.compact_metadata(), msg.stmt(), msg.args()); } if (msg.namespace_() == "xplugin") { session.update_status<&xpl::Common_status_variables::m_stmt_execute_xplugin>(); if (session.options().get_send_xplugin_deprecation()) { xpl::notices::send_message(session.proto(), "Namespace 'xplugin' is deprecated, please use 'mysqlx' instead"); session.options().set_send_xplugin_deprecation(false); } xpl::Admin_command_arguments_list args(msg.args()); return xpl::Admin_command_handler(session).execute(msg.namespace_(), msg.stmt(), args); } if (msg.namespace_() == "mysqlx") { session.update_status<&xpl::Common_status_variables::m_stmt_execute_mysqlx>(); xpl::Admin_command_arguments_object args(msg.args()); return xpl::Admin_command_handler(session).execute(msg.namespace_(), msg.stmt(), args); } return ngs::Error(ER_X_INVALID_NAMESPACE, "Unknown namespace %s", msg.namespace_().c_str()); } ngs::Error_code on_expect_open(xpl::Session &session, xpl::Expectation_stack &expect, const Mysqlx::Expect::Open &msg) { session.update_status<&xpl::Common_status_variables::m_expect_open>(); ngs::Error_code error = expect.open(msg); if (!error) session.proto().send_ok(); return error; } ngs::Error_code on_expect_close(xpl::Session &session, xpl::Expectation_stack &expect, const Mysqlx::Expect::Close &msg) { session.update_status<&xpl::Common_status_variables::m_expect_close>(); ngs::Error_code error = expect.close(); if (!error) session.proto().send_ok(); return error; } ngs::Error_code do_dispatch_command(xpl::Session &session, xpl::Crud_command_handler &crudh, xpl::Expectation_stack &expect, ngs::Request &command) { switch (command.get_type()) { case Mysqlx::ClientMessages::SQL_STMT_EXECUTE: return on_stmt_execute(session, static_cast<const Mysqlx::Sql::StmtExecute&>(*command.message())); case Mysqlx::ClientMessages::CRUD_FIND: return crudh.execute_crud_find(session, static_cast<const Mysqlx::Crud::Find&>(*command.message())); case Mysqlx::ClientMessages::CRUD_INSERT: return crudh.execute_crud_insert(session, static_cast<const Mysqlx::Crud::Insert&>(*command.message())); case Mysqlx::ClientMessages::CRUD_UPDATE: return crudh.execute_crud_update(session, static_cast<const Mysqlx::Crud::Update&>(*command.message())); case Mysqlx::ClientMessages::CRUD_DELETE: return crudh.execute_crud_delete(session, static_cast<const Mysqlx::Crud::Delete&>(*command.message())); case Mysqlx::ClientMessages::CRUD_CREATE_VIEW: return crudh.execute_create_view(session, static_cast<const Mysqlx::Crud::CreateView&>(*command.message())); case Mysqlx::ClientMessages::CRUD_MODIFY_VIEW: return crudh.execute_modify_view(session, static_cast<const Mysqlx::Crud::ModifyView&>(*command.message())); case Mysqlx::ClientMessages::CRUD_DROP_VIEW: return crudh.execute_drop_view(session, static_cast<const Mysqlx::Crud::DropView&>(*command.message())); case Mysqlx::ClientMessages::EXPECT_OPEN: return on_expect_open(session, expect, static_cast<const Mysqlx::Expect::Open&>(*command.message())); case Mysqlx::ClientMessages::EXPECT_CLOSE: return on_expect_close(session, expect, static_cast<const Mysqlx::Expect::Close&>(*command.message())); } session.proto().get_protocol_monitor().on_error_unknown_msg_type(); return ngs::Error(ER_UNKNOWN_COM_ERROR, "Unexpected message received"); } } // namespace bool xpl::dispatcher::dispatch_command(Session &session, Crud_command_handler &crudh, Expectation_stack &expect, ngs::Request &command) { ngs::Error_code error = expect.pre_client_stmt(command.get_type()); if (!error) { error = do_dispatch_command(session, crudh, expect, command); if (error) session.proto().send_result(error); expect.post_client_stmt(command.get_type(), error); } else session.proto().send_result(error); return error.error != ER_UNKNOWN_COM_ERROR; }