QString StunClient::getStunAddress(QByteArray resp, uint16_t attr_type)
{
stun_buffer buf;
u08bits addr_buff[STUN_BUFFER_SIZE] = {0};
buf.len = resp.length();
memcpy(buf.buf, resp.data(), resp.length());
uint16_t t_attr_type;
const u08bits *attr_value;
int attr_len;
ioa_addr stun_addr;
stun_attr_ref raw_attr = stun_attr_get_first_str(buf.buf, buf.len);
for ( ; raw_attr ; raw_attr = stun_attr_get_next_str(buf.buf, buf.len, raw_attr)) {
t_attr_type = stun_attr_get_type(raw_attr);
attr_value = stun_attr_get_value(raw_attr);
attr_len = stun_attr_get_len(raw_attr);
if (t_attr_type == attr_type) {
stun_attr_get_addr_str(buf.buf, buf.len, raw_attr, &stun_addr, NULL);
addr_to_string(&stun_addr, (u08bits*)addr_buff);
break;
}
}
return QString((char*)addr_buff);
}
stun_attr_ref stun_attr_get_next(const stun_buffer* buf, stun_attr_ref prev) {
return stun_attr_get_next_str(buf->buf, (size_t)(buf->len), prev);
}
void StunClient::debugStunResponse(QByteArray resp)
{
u08bits rbuf[STUN_BUFFER_SIZE];
size_t rlen = 0;
stun_buffer buf;
u08bits addr_buff[STUN_BUFFER_SIZE] = {0};
rlen = resp.length();
memcpy(rbuf, resp.data(), resp.length());
buf.len = resp.length();
memcpy(buf.buf, resp.data(), resp.length());
if (!stun_is_command_message(&buf)) {
qDebug()<<resp.length()<<("The response is not a STUN message\n");
return;
}
if (!stun_is_response(&buf)) {
qDebug()<<resp.length()<<("The response is not a reponse message\n");
// return;
}
u16bits stun_method;
u16bits stun_msg_type;
stun_method = stun_get_method_str(buf.buf, buf.len);
stun_msg_type = stun_get_msg_type_str(buf.buf, buf.len);
qDebug()<<"method:"<<stun_method<<getMethodName(stun_method)<<",msg type:"<<stun_msg_type;
int attr_type;
const u08bits *attr_value;
int attr_len;
char relayed_addr_str[32] = {0};
char mapped_addr_str[32] = {0};
char addr_str[32] = {0};
ioa_addr relayed_addr;
ioa_addr mapped_addr;
ioa_addr stun_addr;
uint32_t lifetime = 0;
uint32_t bandwidth = 0;
stun_attr_ref raw_attr = stun_attr_get_first_str(buf.buf, buf.len);
for ( ; raw_attr ; raw_attr = stun_attr_get_next_str(buf.buf, buf.len, raw_attr)) {
attr_type = stun_attr_get_type(raw_attr);
attr_value = stun_attr_get_value(raw_attr);
attr_len = stun_attr_get_len(raw_attr);
switch (attr_type) {
case STUN_ATTRIBUTE_SOFTWARE:
qDebug()<<"attr software:"<<QByteArray((char*)attr_value, attr_len);
break;
case STUN_ATTRIBUTE_XOR_MAPPED_ADDRESS:
stun_attr_get_addr_str(buf.buf, buf.len, raw_attr, &mapped_addr, NULL);
addr_to_string(&mapped_addr, (u08bits*)mapped_addr_str);
qDebug()<<"mapped addr:"<<mapped_addr_str;
break;
case STUN_ATTRIBUTE_XOR_RELAYED_ADDRESS:
stun_attr_get_addr_str(buf.buf, buf.len, raw_attr, &relayed_addr, NULL);
addr_to_string(&relayed_addr, (u08bits*)relayed_addr_str);
qDebug()<<"relayed addr:"<<relayed_addr_str;
break;
case STUN_ATTRIBUTE_MESSAGE_INTEGRITY:
qDebug()<<"message integrity:"<<attr_len<<QByteArray((char*)attr_value, attr_len).toHex();
break;
case STUN_ATTRIBUTE_LIFETIME:
memcpy(&lifetime, attr_value, attr_len);
lifetime = nswap32(lifetime);
qDebug()<<"lifetime:"<<lifetime;
break;
case STUN_ATTRIBUTE_BANDWIDTH:
memcpy(&bandwidth, attr_value, attr_len);
bandwidth = nswap32(bandwidth);
qDebug()<<"bandwidth:"<<bandwidth;
break;
case STUN_ATTRIBUTE_XOR_PEER_ADDRESS:
stun_attr_get_addr_str(buf.buf, buf.len, raw_attr, &stun_addr, NULL);
addr_to_string(&stun_addr, (u08bits*)addr_str);
qDebug()<<"xor peer addr:"<<addr_str;
break;
case STUN_ATTRIBUTE_DATA:
qDebug()<<"attr data len:"<<attr_len<<QString(QByteArray((char*)attr_value + 4, attr_len - 4)).left(50)<<"...";
break;
default:
qDebug()<<"unkown attr:"<<attr_type<<attr_len;
break;
}
}
}