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Problem: magic numbers in mechanism_base.cpp

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Solution: extract constants
This commit is contained in:
Simon Giesecke 2018-05-28 16:19:46 +02:00
parent abca9f6bc1
commit 18000a213f
1 changed files with 17 additions and 5 deletions
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22
src/mechanism_base.cpp
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@ -55,12 +55,24 @@ int zmq::mechanism_base_t::check_basic_command_structure (msg_t *msg_)
void zmq::mechanism_base_t::handle_error_reason (const char *error_reason_,
size_t error_reason_len_)
{
if (error_reason_len_ == 3 && error_reason_[1] == '0'
&& error_reason_[2] == '0' && error_reason_[0] >= '3'
&& error_reason_[0] <= '5') {
// it is a ZAP status code, so emit an authentication failure event
const size_t status_code_len = 3;
const char zero_digit = '0';
const size_t significant_digit_index = 0;
const size_t first_zero_digit_index = 1;
const size_t second_zero_digit_index = 2;
const int factor = 100;
if (error_reason_len_ == status_code_len
&& error_reason_[first_zero_digit_index] == zero_digit
&& error_reason_[second_zero_digit_index] == zero_digit
&& error_reason_[significant_digit_index] >= '3'
&& error_reason_[significant_digit_index] <= '5') {
// it is a ZAP error status code (300, 400 or 500), so emit an authentication failure event
session->get_socket ()->event_handshake_failed_auth (
session->get_endpoint (), (error_reason_[0] - '0') * 100);
session->get_endpoint (),
(error_reason_[significant_digit_index] - zero_digit) * factor);
} else {
// this is a violation of the ZAP protocol
// TODO zmq_assert in this case?
}
}