The connection to the proxy server was refused (the proxy server is not accepting requests) QNetworkReply::Prox圜onnectionRefusedError While following redirects, the network access API detected a redirect from a encrypted protocol (https) to an unencrypted one (http). The limit is by default set to 50 or as set by QNetworkRequest::setMaxRedirectsAllowed(). While following redirects, the maximum limit was reached. The background request is not currently allowed due to platform policy. QNetworkReply::BackgroundRequestNotAllowedError The connection was broken due to disconnection from the network or failure to start the network. The request should be resubmitted and will be processed as soon as the connection is re-established. The connection was broken due to disconnection from the network, however the system has initiated roaming to another access point. QNetworkReply::TemporaryNetworkFailureError The sslErrors() signal should have been emitted. The SSL/TLS handshake failed and the encrypted channel could not be established. The operation was canceled via calls to abort() or close() before it was finished. The connection to the remote server timed out The remote host name was not found (invalid hostname) The remote server closed the connection prematurely, before the entire reply was received and processed The remote server refused the connection (the server is not accepting requests) The downloadProgress() signal is also emitted when data is received, but the number of bytes contained in it may not represent the actual bytes received, if any transformation is done to the contents (for example, decompressing and removing the protocol overhead).Įven though QNetworkReply is a QIODevice connected to the contents of the reply, it also emits the uploadProgress() signal, which indicates the progress of the upload for operations that have such content. Whenever more data is received from the network and processed, the readyRead() signal is emitted. It is therefore the application's responsibility to keep this data if it needs to. QNetworkReply is a sequential-access QIODevice, which means that once data is read from the object, it no longer kept by the device. Like QNetworkRequest, it contains a URL and headers (both in parsed and raw form), some information about the reply's state and the contents of the reply itself. The QNetworkReply class contains the data and meta data related to a request posted with QNetworkAccessManager.
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