/// <summary>
/// Create a new subscription to this hub for the supplied repository information and shared secret.
/// </summary>
/// <param name="repositoryXml"></param>
/// <remarks></remarks>
/// <returns>The client repository information retrieved from the server.</returns>
public async Task <ClientRepositoryXml> CreateSubscription(ClientRepositoryXml repositoryXml)
{
var request = new ClientRepositoryUploadRequest(repositoryXml);
//we have to use distinct credentials for this so we have to swap the credentials on the connection.
var channel = await GetCurrentChannel().ConfigureAwait(false);
bool retry;
do
{
retry = false; //so we'll exit by default
try
{
await channel.ExecuteRequest(request, 1).ConfigureAwait(false);
}
catch (WebChannelAuthorizationException ex)
{
//request better credentials..
Logger.Write(LogMessageSeverity.Warning, ex, true, LogCategory,
"Requesting updated credentials for the server connection due to " + ex.GetType(),
"We're going to assume the user can provide current credentials.\r\nDetails: {0}", ex.Message);
retry = CachedCredentialsManager.UpdateCredentials(channel, m_ClientRepositoryId, true);
if (retry == false)
{
throw;
}
}
} while (retry);
return(request.ResponseRepository);
}
/// <summary>
/// Execute the provided request.
/// </summary>
/// <param name="newRequest"></param>
/// <param name="maxRetries">The maximum number of times to retry the connection. Use -1 to retry indefinitely.</param>
public async Task ExecuteRequest(IWebRequest newRequest, int maxRetries)
{
//make sure we have a channel
WebChannel channel = await GetCurrentChannel().ConfigureAwait(false); //this throws exceptions when it can't connect and is thread safe.
//if we have a channel and NOW get an exception, here is where we would recheck the status of our connection.
bool retryAuthentication = false;
bool resetAndRetry = false;
try
{
await channel.ExecuteRequest(newRequest, maxRetries).ConfigureAwait(false);
}
catch (WebChannelAuthorizationException ex)
{
//request better credentials..
Logger.Write(LogMessageSeverity.Warning, ex, true, LogCategory,
"Requesting updated credentials for the server connection due to " + ex.GetType(),
"We're going to assume the user can provide current credentials.\r\nDetails: {0}", ex.Message);
if (CachedCredentialsManager.UpdateCredentials(channel, m_ClientRepositoryId, false))
{
//they entered new creds.. lets give them a go.
retryAuthentication = true;
}
else
{
//they canceled, lets call it.
throw;
}
}
catch (WebChannelConnectFailureException)
{
//clear our current channel and try again if we're on a child server.
if (IsRootHub(channel.HostName, channel.Port, channel.UseSsl, channel.ApplicationBaseDirectory) == false)
{
resetAndRetry = true;
}
}
if (retryAuthentication)
{
await ExecuteRequest(newRequest, maxRetries).ConfigureAwait(false);
}
else if (resetAndRetry)
{
await ResetChannel().ConfigureAwait(false); //safely clears the current channel and gets a fresh one if possible
}
}
/// <summary>
/// Connect to the hub (or another hub if the configured hub is redirecting)
/// </summary>
/// <returns>The last web channel it was able to connect to after processing redirections, if that channel is available.</returns>
private async Task <HubConnectionStatus> Connect()
{
var connectionStatus = await Connect(m_RootConfiguration).ConfigureAwait(false);
if (connectionStatus.Channel != null)
{
//copy our current settings into it.
lock (m_Lock)
{
connectionStatus.Channel.EnableLogging = m_EnableLogging;
if (m_UseCredentials)
{
connectionStatus.Channel.AuthenticationProvider = CachedCredentialsManager.GetCredentials(connectionStatus.Channel, m_UseRepositoryCredentials, m_ClientRepositoryId, m_KeyContainerName, m_UseMachineStore);
}
System.Threading.Monitor.PulseAll(m_Lock);
}
}
return(connectionStatus);
}
