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#include "stdafx.h"
void CToxProto::BootstrapUdpNode(Tox *tox, const char *address, int port, const char *hexKey)
{
if (address == nullptr || hexKey == nullptr)
return;
ToxBinAddress binKey(hexKey, TOX_PUBLIC_KEY_SIZE * 2);
TOX_ERR_BOOTSTRAP error;
if (!tox_bootstrap(tox, address, port, binKey, &error))
debugLogA(__FUNCTION__ ": failed to bootstrap node %s:%d \"%s\" (%d)", address, port, hexKey, error);
}
void CToxProto::BootstrapTcpRelay(Tox *tox, const char *address, int port, const char *hexKey)
{
if (address == nullptr || hexKey == nullptr)
return;
ToxBinAddress binKey(hexKey, TOX_PUBLIC_KEY_SIZE * 2);
TOX_ERR_BOOTSTRAP error;
if (!tox_add_tcp_relay(tox, address, port, binKey, &error))
debugLogA(__FUNCTION__ ": failed to add tcp relay %s:%d \"%s\" (%d)", address, port, hexKey, error);
}
void CToxProto::BootstrapNodesFromDb(Tox *tox, bool isIPv6)
{
char module[MAX_PATH];
mir_snprintf(module, "%s_Nodes", m_szModuleName);
int nodeCount = db_get_w(0, module, TOX_SETTINGS_NODE_COUNT, 0);
if (nodeCount == 0)
return;
char setting[MAX_PATH];
for (int i = 0; i < nodeCount; i++) {
mir_snprintf(setting, TOX_SETTINGS_NODE_IPV4, i);
ptrA address(db_get_sa(0, module, setting));
mir_snprintf(setting, TOX_SETTINGS_NODE_PORT, i);
int port = db_get_w(0, module, setting, 33445);
mir_snprintf(setting, TOX_SETTINGS_NODE_PKEY, i);
ptrA pubKey(db_get_sa(0, module, setting));
BootstrapUdpNode(tox, address, port, pubKey);
BootstrapTcpRelay(tox, address, port, pubKey);
if (isIPv6) {
mir_snprintf(setting, TOX_SETTINGS_NODE_IPV6, i);
address = db_get_sa(0, module, setting);
BootstrapUdpNode(tox, address, port, pubKey);
BootstrapTcpRelay(tox, address, port, pubKey);
}
}
}
void CToxProto::BootstrapNodesFromJson(Tox *tox, bool isIPv6)
{
VARSW path(TOX_JSON_PATH);
long lastUpdate = getDword("NodesUpdate", 0);
if (!IsFileExists(path) || lastUpdate < (now() - 86400 /* 24h */))
UpdateNodes();
JSONNode nodes = ParseNodes();
auto nodeCount = nodes.size();
if (nodeCount == 0)
return;
static int j = rand() % nodeCount;
int i = 0;
while (i < 2) {
JSONNode node = nodes[j % nodeCount];
bool udpStatus = node.at("status_udp").as_bool();
bool tcpStatus = node.at("status_tcp").as_bool();
if (!udpStatus && !tcpStatus) {
nodeCount = j - 1;
j = rand() % nodeCount;
if (j == 0)
return;
continue;
}
JSONNode address = node.at("ipv4");
JSONNode pubKey = node.at("public_key");
if (udpStatus) {
int port = node.at("port").as_int();
BootstrapUdpNode(tox, address.as_string().c_str(), port, pubKey.as_string().c_str());
if (isIPv6) {
address = node.at("ipv6");
BootstrapUdpNode(tox, address.as_string().c_str(), port, pubKey.as_string().c_str());
}
}
if (tcpStatus) {
JSONNode tcpPorts = node.at("tcp_ports").as_array();
for (size_t k = 0; k < tcpPorts.size(); k++) {
int port = tcpPorts[k].as_int();
BootstrapTcpRelay(tox, address.as_string().c_str(), port, pubKey.as_string().c_str());
if (isIPv6) {
address = node.at("ipv6");
BootstrapTcpRelay(tox, address.as_string().c_str(), port, pubKey.as_string().c_str());
}
}
}
j++;
i++;
}
}
void CToxProto::BootstrapNodes(Tox *tox)
{
debugLogA(__FUNCTION__": bootstraping DHT");
bool isIPv6 = getBool("EnableIPv6", 0);
BootstrapNodesFromJson(tox, isIPv6);
BootstrapNodesFromDb(tox, isIPv6);
}
void CToxProto::UpdateNodes()
{
VARSW path(TOX_JSON_PATH);
debugLogA(__FUNCTION__": updating nodes");
HttpRequest request(REQUEST_GET, "https://nodes.tox.chat/json");
NLHR_PTR response(request.Send(m_hNetlibUser));
if (!response || response->resultCode != HTTP_CODE_OK || !response->pData) {
debugLogA(__FUNCTION__": failed to dowload tox.json");
return;
}
JSONNode root = JSONNode::parse(response->pData);
if (root.empty()) {
debugLogA(__FUNCTION__": failed to dowload tox.json");
return;
}
DWORD lastUpdate = root.at("last_scan").as_int();
if (lastUpdate <= getDword("NodesUpdate", 0))
return;
FILE *hFile = _wfopen(path, L"w");
if (hFile == nullptr) {
debugLogA(__FUNCTION__": failed to open tox.json");
return;
}
if (fwrite(response->pData, sizeof(char), response->dataLength, hFile) != (size_t)response->dataLength)
debugLogA(__FUNCTION__": failed to write tox.json");
fclose(hFile);
setDword("NodesUpdate", lastUpdate);
}
JSONNode CToxProto::ParseNodes()
{
VARSW path(TOX_JSON_PATH);
if (!IsFileExists(path)) {
debugLogA(__FUNCTION__": could not find tox.json");
return JSONNode(JSON_ARRAY);
}
FILE *hFile = _wfopen(path, L"r");
if (hFile == nullptr) {
debugLogA(__FUNCTION__": failed to open tox.json");
return JSONNode(JSON_ARRAY);
}
_fseeki64(hFile, 0, SEEK_END);
size_t size = _ftelli64(hFile);
ptrA json((char*)mir_calloc(size));
rewind(hFile);
fread(json, sizeof(char), size, hFile);
fclose(hFile);
JSONNode root = JSONNode::parse(json);
if (root.empty()) {
debugLogA(__FUNCTION__": failed to parse tox.json");
return JSONNode(JSON_ARRAY);
}
return root.at("nodes").as_array();
}
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