protected override async Task <HttpResponseMessage> SendAsync(HttpRequestMessage request,
CancellationToken cancellationToken)
{
if (request.AuthHeadersInvalid())
{
SessionExpired?.Invoke(this, EventArgs.Empty);
return(new UnauthorizedResponse());
}
var refreshTask = _refreshTask;
if (!refreshTask.IsCompleted)
{
var refreshSucceeded = await refreshTask;
return(await ResendAsync(request, cancellationToken, refreshSucceeded));
}
var response = await base.SendAsync(request, cancellationToken);
if (response.StatusCode == HttpStatusCode.Unauthorized)
{
try
{
var refreshSucceeded = await Refresh(refreshTask, cancellationToken);
return(await ResendAsync(request, cancellationToken, refreshSucceeded));
}
finally
{
response.Dispose();
}
}
return(response);
}
private async Task <HttpResponseMessage> ResendAsync(HttpRequestMessage request, CancellationToken cancellationToken,
bool refreshSucceeded)
{
if (refreshSucceeded)
{
PrepareRequest(request);
return(await base.SendAsync(request, cancellationToken));
}
SessionExpired?.Invoke(this, EventArgs.Empty);
return(new UnauthorizedResponse());
}
// Static Methods
/// <summary>
/// Clears any cached session for the specified <paramref name="sessionID"/>.
/// </summary>
/// <param name="sessionID">Identifier of session to clear.</param>
/// <returns><c>true</c> if session was found and cleared; otherwise, <c>false</c>.</returns>
public static bool ClearSessionCache(Guid sessionID)
{
Tuple <DynamicViewBag, Ticks> session;
if (s_sessionCache.TryRemove(sessionID, out session))
{
SessionExpired?.Invoke(null, new EventArgs <Guid, DynamicViewBag>(sessionID, session.Item1));
return(true);
}
return(false);
}
private async Task <HttpResponseMessage> ResendAsync(HttpRequestMessage request,
CancellationToken cancellationToken,
RefreshTokenStatus refreshTokenStatus)
{
switch (refreshTokenStatus)
{
case RefreshTokenStatus.Success:
PrepareRequest(request);
return(await base.SendAsync(request, cancellationToken));
case RefreshTokenStatus.Unauthorized:
SessionExpired?.Invoke(this, EventArgs.Empty);
return(new UnauthorizedResponse());
default:
return(new UnauthorizedResponse());
}
}
public async Task CheckNewMessages()
{
string syncCheckResultCopy;
while (checkingMessages)
{
try
{
SyncCheckStarted?.Invoke(this, null);
string syncCheckUrl = "https://webpush." + host + "/cgi-bin/mmwebwx-bin/synccheck?r=" + GenerateMessageID() + "&skey=" + System.Net.WebUtility.UrlEncode(save.skey) + "&sid=" + System.Net.WebUtility.UrlEncode(save.wxsid) + "&uin=" + System.Net.WebUtility.UrlEncode(save.wxuin) + "&deviceid=e177768502217168&synckey=";
for (int i = 0; i < SyncCheckKeys.Count; i++)
{
if (i == SyncCheckKeys.Count - 1)
{
syncCheckUrl += SyncCheckKeys[i].Key + "_" + SyncCheckKeys[i].Val;
}
else
{
syncCheckUrl += SyncCheckKeys[i].Key + "_" + SyncCheckKeys[i].Val + "%7C";
}
}
string syncCheckResult = await netHandler.GETRequestAsync(syncCheckUrl);
syncCheckResultCopy = syncCheckResult;
NetworkHandler.ReadUntil(ref syncCheckResult, "retcode:\"");
string retCode = NetworkHandler.ReadUntil(ref syncCheckResult, "\"");
NetworkHandler.ReadUntil(ref syncCheckResult, "selector:\"");
string selector = NetworkHandler.ReadUntil(ref syncCheckResult, "\"");
SyncCheckCompleted?.Invoke(this, new SyncCheckCompletedEventArgs()
{
retcode = retCode, selector = selector
});
if (selector != "0")
{
SyncAgain:
SyncStarted?.Invoke(this, null);
SyncRequest SR = new SyncRequest()
{
BaseRequest = BR, rr = -Convert.ToInt64(GenerateMessageID())
};
SR.SyncKey = new SyncKey()
{
Count = SyncKeys.Count
};
SR.SyncKey.List = new List <SyncKeyItem>();
foreach (SyncKeyItem key in SyncKeys)
{
SR.SyncKey.List.Add(key);
}
string syncResult = await netHandler.POSTRequestAsync("https://" + host + "/cgi-bin/mmwebwx-bin/webwxsync?sid=" + System.Net.WebUtility.UrlEncode(save.wxsid) + "&skey=" + System.Net.WebUtility.UrlEncode(save.skey), JsonConvert.SerializeObject(SR));
SyncResponse syncRes = JsonConvert.DeserializeObject <SyncResponse>(syncResult);
try
{
List <SyncKeyItem> SyncCheckKeysCopy = new List <SyncKeyItem>();
List <SyncKeyItem> SyncKeysCopy = new List <SyncKeyItem>();
foreach (SyncKeyItem key in syncRes.SyncKey.List)
{
SyncKeysCopy.Add(key);
}
foreach (SyncKeyItem key in syncRes.SyncCheckKey.List)
{
SyncCheckKeysCopy.Add(key);
}
SyncCheckKeys = SyncCheckKeysCopy;
SyncKeys = SyncKeysCopy;
}
catch
{
SyncOrSyncCheckError?.Invoke(this, new SyncOrSyncCheckErrorEventArgs()
{
errorMessage = "Sync returns EMPTY"
});
}
SyncCompleted?.Invoke(this, new SyncCompletedEventArgs()
{
syncResponse = syncRes
});
}
else if (retCode == "1101")
{
SessionExpired?.Invoke(this, null);
checkingMessages = false;
return;
}
}
catch (Exception ex)
{
SyncOrSyncCheckError?.Invoke(this, new SyncOrSyncCheckErrorEventArgs()
{
errorMessage = ex.ToString()
});
}
}
}
private void OnSessionExpired()
{
SessionExpired?.Invoke(this, System.EventArgs.Empty);
}
private static void OnSessionExpired(Guid sessionID, DynamicViewBag sessionState)
{
SessionExpired?.Invoke(typeof(SessionHandler), new EventArgs <Guid, DynamicViewBag>(sessionID, sessionState));
}