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Merge pull request 'Nodes: don't connect to out of sync nodes in wsmode' (#148) from tobtoht/feather:node_height_mode into master

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Reviewed-on: https://git.wownero.com/feather/feather/pulls/148
This commit is contained in:
tobtoht 2020-11-12 20:19:52 +00:00
commit 519df3f5a1
3 changed files with 47 additions and 12 deletions
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55
src/utils/nodes.cpp
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@ -124,7 +124,7 @@ void Nodes::connectToNode(FeatherNode node) {
qInfo() << msg;
activityLog.append(msg);
if(!node.username.isEmpty() && !node.password.isEmpty())
if (!node.username.isEmpty() && !node.password.isEmpty())
m_ctx->currentWallet->setDaemonLogin(node.username, node.password);
m_ctx->currentWallet->initAsync(node.address, true, 0, false, false, 0);
m_connectionAttemptTime = std::time(nullptr);
@ -149,10 +149,10 @@ void Nodes::onConnectionTimer() {
QString msg;
Wallet::ConnectionStatus status = m_ctx->currentWallet->connected(true);
NodeSource nodeSource = this->source();
auto wsMode = nodeSource == NodeSource::websocket;
auto wsMode = (nodeSource == NodeSource::websocket);
auto nodes = wsMode ? m_customNodes : m_websocketNodes;
if(wsMode && !m_wsNodesReceived && m_websocketNodes.count() == 0) {
if (wsMode && !m_wsNodesReceived && m_websocketNodes.count() == 0) {
// this situation should rarely occur due to the usage of the websocket node cache on startup.
msg = QString("Feather is in websocket connection mode but was not able to receive any nodes (yet).");
qInfo() << msg;
@ -160,13 +160,13 @@ void Nodes::onConnectionTimer() {
return;
}
if(status == Wallet::ConnectionStatus::ConnectionStatus_Disconnected) {
if (status == Wallet::ConnectionStatus::ConnectionStatus_Disconnected) {
// try a connect
auto node = this->pickEligibleNode();
this->connectToNode(node);
return;
} else if(status == Wallet::ConnectionStatus::ConnectionStatus_Connecting){
if(!m_connection.isConnecting) {
} else if (status == Wallet::ConnectionStatus::ConnectionStatus_Connecting){
if (!m_connection.isConnecting) {
// Weirdly enough, status == connecting directly after a wallet is opened.
auto node = this->pickEligibleNode();
this->connectToNode(node);
@ -219,14 +219,44 @@ FeatherNode Nodes::pickEligibleNode() {
auto wsMode = nodeSource == NodeSource::websocket;
auto nodes = wsMode ? m_websocketNodes : m_customNodes;
if(nodes.count() == 0) {
if (nodes.count() == 0) {
this->exhausted();
return rtn;
}
QVector<int> heights;
for (const auto &node: nodes) {
heights.push_back(node.height);
}
std::sort(heights.begin(), heights.end());
// Calculate mode of node heights
int max_count = 1, mode_height = heights[0], count = 1;
for (int i = 1; i < heights.count(); i++) {
if (heights[i] == 0) { // Don't consider 0 height nodes
continue;
}
if (heights[i] == heights[i - 1])
count++;
else {
if (count > max_count) {
max_count = count;
mode_height = heights[i - 1];
}
count = 1;
}
}
if (count > max_count)
{
max_count = count;
mode_height = heights[heights.count() - 1];
}
while(true) {
// keep track of nodes we have previously tried to connect to
if(m_connectionAttempts.count() == nodes.count()) {
if (m_connectionAttempts.count() == nodes.count()) {
this->exhausted();
m_connectionTimer->stop();
return rtn;
@ -234,12 +264,17 @@ FeatherNode Nodes::pickEligibleNode() {
int random = QRandomGenerator::global()->bounded(nodes.count());
FeatherNode node = nodes.at(random);
if(m_connectionAttempts.contains(node.full))
if (m_connectionAttempts.contains(node.full))
continue;
m_connectionAttempts.append(node.full);
if(wsMode && !node.online)
if (wsMode && !node.online)
continue;
// Ignore nodes that are more than 25 blocks behind mode
if (wsMode && node.height < (mode_height - 25))
continue;
return node;
}
}

2
src/utils/nodes.h
View file

@ -41,7 +41,7 @@ struct FeatherNode {
_address = spl.at(1);
}
if(!_address.contains(":"))
_address += ":18089";
_address += ":18081";
this->address = _address;
if(this->address.contains(".onion"))
tor = true;