QNetworkRequest basic Authentication

Infinity

My curl command looks like this:

curl --user 'user:password' --data '{"jsonrpc": "1.0", "id":"curltest", "method": "list", "params": [6, 9999999, [] , true, { "minimumAmount": 0.005 } ] }' -H 'content-type: application/json;' http://127.0.0.1:8332

If I use this curl command from the console it works fine.

For QNetworkManager I tried like this:

QByteArray userAndPassword;
userAndPassword.append(m_rpcUser);
userAndPassword.append(":");
userAndPassword.append(m_rpcPassword);

m_networkRequest.setRawHeader("Authorization", "Basic " + userAndPassword);
m_networkRequest.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("application/json"));

I always get the following error:

Error QNetworkReply::AuthenticationRequiredError "Der Host verlangt eine Authentifizierung"

How can I set the basic authentication for a QNetworkRequest?

SGaist

You forgot to encode the credentials.

See here.

Infinity

@SGaist said in QNetworkRequest basic Authentication:

You forgot to encode the credentials.

Now it looks like this:

QString credentialsString = QString("%1:%2").arg(m_rpcUser).arg(m_rpcPassword);
QByteArray credentialsArray = credentialsString.toLocal8Bit().toBase64();
QString headerData = "Basic " + credentialsArray;

m_networkRequest.setRawHeader("Authorization", headerData.toLocal8Bit());

But I still get the same error.

SGaist

One other thing you can use is the QNAM::authenticationRequired signal and fill the details there.

Infinity

@SGaist said in QNetworkRequest basic Authentication:

One other thing you can use is the QNAM::authenticationRequired signal and fill the details there.

With this I don't get the error anymore, but the the request is not called anymore.

void RpcEndPoint::on_networkManagerAuthenticationRequired(QNetworkReply *reply, QAuthenticator *authenticator)
{
    authenticator->setUser(m_rpcUser);
    authenticator->setPassword(m_rpcPassword);

    m_reply = reply;

    // Connect the slots to the new m_reply
    connect(m_reply, QOverload<QNetworkReply::NetworkError>::of(&QNetworkReply::error),
        [=](QNetworkReply::NetworkError code) {
            qDebug() << "Error" << code << m_reply->errorString();
        }
    );

    connect(m_reply, &QNetworkReply::downloadProgress,
            this, &RpcEndPoint::on_downloadProgress);

    connect(m_reply, &QNetworkReply::readyRead,
            this, &RpcEndPoint::on_downloadReadyRead);

    connect(m_reply, &QNetworkReply::finished,
            this, &RpcEndPoint::on_downloadFinished);

}

Pablo J. Rogina

@Infinity said in QNetworkRequest basic Authentication:

m_networkRequest.setRawHeader("Authorization", headerData.toLocal8Bit());

It looks like you're missing the final ":" (colon) for the header, as it should be "Authentication:" see RFC 7617.

Infinity

@Pablo-J-Rogina said in QNetworkRequest basic Authentication:

It looks like you're missing the final ":" (colon) for the header, as it should be "Authentication:" see RFC 7617.

QString credentialsString = QString("%1:%2").arg(m_rpcUser).arg(m_rpcPassword);

QByteArray credentialsArray = credentialsString.toLocal8Bit().toBase64();

QString headerData = "Basic " + credentialsArray;

m_networkRequest.setRawHeader("Authentication:", headerData.toLocal8Bit());

Still the same error with this

Infinity

I found the following solution:

m_endPointUrl.setUserName(m_rpcUserName);
m_endPointUrl.setPassword(m_rpcPassword);

m_networkRequest.setUrl(m_endPointUrl);
m_networkRequest.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("application/json"))

m_reply = m_networkManager->post(m_networkRequest, requestJsonDocument.toJson(QJsonDocument::Compact));

But I still would like to know how it would work with:

QNetworkAccessManager::authenticationRequired(QNetworkReply *reply, QAuthenticator *authenticator)