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83 lines
3.2 KiB
C++
83 lines
3.2 KiB
C++
/*
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Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
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This file is part of libzmq, the ZeroMQ core engine in C++.
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libzmq is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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As a special exception, the Contributors give you permission to link
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this library with independent modules to produce an executable,
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regardless of the license terms of these independent modules, and to
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copy and distribute the resulting executable under terms of your choice,
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provided that you also meet, for each linked independent module, the
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terms and conditions of the license of that module. An independent
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module is a module which is not derived from or based on this library.
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If you modify this library, you must extend this exception to your
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version of the library.
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libzmq is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.hpp"
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#include "mechanism_base.hpp"
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#include "session_base.hpp"
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zmq::mechanism_base_t::mechanism_base_t (session_base_t *const session_,
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const options_t &options_) :
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mechanism_t (options_),
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session (session_)
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{
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}
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int zmq::mechanism_base_t::check_basic_command_structure (msg_t *msg_)
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{
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if (msg_->size () <= 1
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|| msg_->size () <= (static_cast<uint8_t *> (msg_->data ()))[0]) {
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session->get_socket ()->event_handshake_failed_protocol (
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session->get_endpoint (),
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ZMQ_PROTOCOL_ERROR_ZMTP_MALFORMED_COMMAND_UNSPECIFIED);
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errno = EPROTO;
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return -1;
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}
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return 0;
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}
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void zmq::mechanism_base_t::handle_error_reason (const char *error_reason_,
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size_t error_reason_len_)
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{
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const size_t status_code_len = 3;
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const char zero_digit = '0';
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const size_t significant_digit_index = 0;
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const size_t first_zero_digit_index = 1;
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const size_t second_zero_digit_index = 2;
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const int factor = 100;
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if (error_reason_len_ == status_code_len
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&& error_reason_[first_zero_digit_index] == zero_digit
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&& error_reason_[second_zero_digit_index] == zero_digit
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&& error_reason_[significant_digit_index] >= '3'
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&& error_reason_[significant_digit_index] <= '5') {
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// it is a ZAP error status code (300, 400 or 500), so emit an authentication failure event
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session->get_socket ()->event_handshake_failed_auth (
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session->get_endpoint (),
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(error_reason_[significant_digit_index] - zero_digit) * factor);
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} else {
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// this is a violation of the ZAP protocol
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// TODO zmq_assert in this case?
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}
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}
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bool zmq::mechanism_base_t::zap_required () const
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{
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return !options.zap_domain.empty ();
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}
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