/**
* @brief Enqueue a protocol-specific handler to service a specified connection, and update any statistics accordingly.
* @note If an invalid protocol is specified, the connection will be destroyed gracefully.
* @param con a pointer to the connection object to be serviced.
* @return This function returns no value.
*/
void protocol_enqueue(connection_t *con) {
void *function = NULL;
// Pedantic sanity checks of the passed in data.
log_check(con == NULL);
log_check(con->server == NULL);
switch (con->server->protocol) {
case (POP):
stats_increment_by_name("pop.connections.total");
if (con_secure(con) == 1) stats_increment_by_name("pop.connections.secure");
function = &pop_init;
break;
case (IMAP):
stats_increment_by_name("imap.connections.total");
if (con_secure(con) == 1) stats_increment_by_name("imap.connections.secure");
function = &imap_init;
break;
case (HTTP):
stats_increment_by_name("http.connections.total");
if (con_secure(con) == 1) stats_increment_by_name("http.connections.secure");
function = &http_init;
break;
case (SMTP):
stats_increment_by_name("smtp.connections.total");
if (con_secure(con) == 1) stats_increment_by_name("smtp.connections.secure");
function = &smtp_init;
break;
case (SUBMISSION):
stats_increment_by_name("smtp.connections.total");
if (con_secure(con) == 1) stats_increment_by_name("smtp.connections.secure");
function = &submission_init;
break;
case (MOLTEN):
stats_increment_by_name("molten.connections.total");
if (con_secure(con) == 1) stats_increment_by_name("molten.connections.secure");
function = &molten_init;
break;
default:
log_pedantic("Protocol enqueue was passed a connection using an unsupported or unknown protocol.");
con_destroy(con);
return;
}
enqueue(function, con);
return;
}
/**
* @brief Gracefully destroy a POP3 session, whether because of an error or in response to a user QUIT command.
* @param con the POP3 client connection to be shut down.
* @brief This function returns no value.
*/
void pop_quit(connection_t *con) {
if (con_status(con) == 2) {
con_write_bl(con, "-ERR Unexpected connection shutdown detected. Goodbye.\r\n", 56);
}
else if (con_status(con) >= 0) {
con_write_bl(con, "+OK Goodbye.\r\n", 14);
}
else {
con_write_bl(con, "-ERR Network connection failure.\r\n", 34);
}
con_destroy(con);
return;
}
void molten_quit(connection_t *con) {
con_destroy(con);
return;
}
