I'm a little lost. I followed the documentation of ERPConnect (Theobald) to setup an rfc server:
static void Main(string[] args)
{
// define server object and start
RFCServer s = new RFCServer();
s.Logging = true;
s.GatewayHost = "hamlet";
s.GatewayService = "sapgw11";
s.ProgramID = "ERPTEST";
s.CanReceiveIdocs = true;
s.IncomingIdoc+= new ERPConnect.RFCServer.OnIncomingIdoc(s_IncomingIdoc);
s.InternalException+= new ERPConnect.RFCServer.OnInternalException (s_InternalException);
s.Start();
Console.WriteLine("Server is running. Press any key to exit.");
Console.ReadLine();
s.Stop();
}
The only problem is, that I can't figure out, how to send my password credentials to the SAP server. As a result I get internal exceptions, that I am not authorized to receive idocs.
there is no need for any credentials if you want to receive Idocs. Setting up an RFC Server to receive Idocs needs only this 3 SAP Properties: GatewayHost (usually your SAP Server), Gateway Service(usually sapgw + Instancenumber of the SAP System) and ProgramID. You can find a tutorial how to setup the ProgramID following this link:
http://help.theobald-software.com/ERPConnect-EN/default.aspx?pageid=setting-up-an-environment-for-sending-test-idocs
More Details how to receive an Idoc :
http://help.theobald-software.com/ERPConnect-EN/default.aspx?pageid=example-receiving-an-idoc
Best
Ali
Related
I'm developing a Service in ASP.Net-Core (.net6) that connects to a BusinessCentral OData API.
The Server has SSL/Kerberos enabled and I have a user and password to authenticate with.
I use the AddHttpClient-IServiceCollectionExtension in my Program.cs like:
services.AddHttpClient([name], httpClient =>
{
httpClient.BaseAddress = new Uri(config[BaseUrl]);
}).ConfigurePrimaryHttpMessageHandler(() =>
new HttpClientHandler()
{
Credentials = new NetworkCredential(
config[Username],
config[Password],
config[Domain])
}
);
...and inject the IHttpClientFactory to my client-class:
MyODataClient(IHttpClientFactory factory)
{
_client = factory!.CreateClient([name]);
}
public HttpResponseMessage GetEntity(Entity src)
{
var path = $"{src.Type}('{src.SysId}')?";
var request = new HttpRequestMessage(HttpMethod.Get, path);
var response = _client.SendAsync(request);
return response;
}
So far so good. Everything ist fine and works (with swagger)!
BUT...
When I start this service within a linux Docker container, I get the error:
GSSAPI operation failed with error - Unspecified GSS failure. Minor code may provide more information (Cannot find KDC for realm "[domain]").
Then I tried:
builder.Services.AddAuthentication(NegotiateDefaults.AuthenticationScheme).AddNegotiate();
builder.Services.AddAuthorization(options =>
{
options.FallbackPolicy = options.DefaultPolicy;
});
Now Swagger ask me for username and password. It doesn't work but I think this is why I don't passthrough the headers from swagger to BC19... with HeaderPropagation or so (??).
Btw. I need to use a static user. No interaction...
I also read and tried keytab-stuff... But everything I read was >2 years old. Does anybody know, how to deal with it in .net6? It seems to be quite easy but I don't find the two lines of code, that I need to connect the httpClientHandler (credentials) with the AuthenticationBuilder (negotiate)
Maybe this log helps:
Authorization failed. These requirements were not met:
DenyAnonymousAuthorizationRequirement: Requires an authenticated user.
[17:20:26 INF] AuthenticationScheme: Negotiate was challenged.
[17:20:26 INF] Request finished HTTP/1.1 GET https://localhost:49179/Entity?[...]. - - - 401 0 - 28.0138ms
best regards
Oli
I am using OAuth2.0 to connect to Exchange webservices. Everything else seems to work ok for me . However when i try to subscribe one of the room resource by using grouping info and providing the anchor mailbox as one of the primary mail box it throws an error.
"Request failed because EWS could not contact the appropriate CAS server for this request."
So for example i am trying to subscribe nitroom1 and one the primary mailbox associated with the group is nitroom2 which i am using as X-AnchorMailbox then i got the above error.
public static ExchangeService GetExchangeService(string exchangeURL, string userName, string password, string resourceEmail, string primaryMailbox, string clientID, string tenantID, string clientSecret, string certName)
{
ExchangeService service;
service = new ExchangeService(setTZtoUTC);
service.Url = new Uri(exchangeURL);
if (!string.IsNullOrWhiteSpace(clientID) && !string.IsNullOrWhiteSpace(tenantID))
{
string oAuthToken = multiExchangeManager.getOAuthTokenFromCache(clientID, tenantID, clientSecret, certName);
service.Credentials = new OAuthCredentials(oAuthToken);
}
else
{
service.Credentials = new WebCredentials(userName, password);
}
service.ImpersonatedUserId = new ImpersonatedUserId(ConnectingIdType.SmtpAddress, resourceEmail);
service.HttpHeaders.Add("X-AnchorMailbox", primaryMailbox);
service.HttpHeaders.Add("X-PreferServerAffinity", "true");
return service;
}
However if i connect ews using impersonate account then do same thing it works fine.
Also, if i use resourceMailbox same as primary mailbox then it works ok as well.so in my example it will look like this.
service.ImpersonatedUserId = new ImpersonatedUserId(ConnectingIdType.SmtpAddress, "nitroom1");
service.HttpHeaders.Add("X-AnchorMailbox", "nitroom1");
This is how i am trying to use subscription.
exchangeService.SubscribeToStreamingNotifications(
new FolderId[] { WellKnownFolderName.Calendar, WellKnownFolderName.DeletedItems },
EventType.Created, EventType.Deleted, EventType.Modified, EventType.Moved, EventType.Copied);
Does anyone have any idea why its happening or what i am doing wrong here?
one more thing to add, i tried EWSEditor tool which provides subscription info and both above mentioned resources sharing same grouping info.
I think i found a solution for this issue, i just need to set
X-BackEndOverRideCookie with any service used for subscribing child mailbox.
For more info read this article
https://learn.microsoft.com/en-us/exchange/client-developer/exchange-web-services/how-to-maintain-affinity-between-group-of-subscriptions-and-mailbox-server
I have the following action method to send emails using gmail smtp , inside an asp.net mvc web application:-
[HttpPost]
public ActionResult Contact(Contact c)
{
//
if (ModelState.IsValid)
{
MailMessage mail = new MailMessage();
mail.From = new MailAddress("*****");
mail.To.Add(new MailAddress("******"));
mail.Subject = "New Feedback from Edama Web Site";
mail.IsBodyHtml = true;
System.Text.StringBuilder mailBody = new System.Text.StringBuilder();
mailBody.AppendLine("<b>Dear Sirs, </b><br/><br/>");
mail.Body = mailBody.ToString();
// Create a new Smpt Client using Google's servers
var mailclient = new SmtpClient();
mailclient.Host = "smtp.gmail.com";
mailclient.Port = 587;
// This is the critical part, you must enable SSL
mailclient.EnableSsl = true;
mailclient.Credentials = new System.Net.NetworkCredential
("***", "***"); /
//Or your Smtp Email ID and Password
//smtp.EnableSsl = true;
mailclient.Send(mail);
TempData["message"] = string.Format("Your Feedback has been submitted. Thanks");
return RedirectToAction("Contact");
}
return View(c);
}
now when i am running my web application under VS 2013 everything will work well , where i will receive emails correctly. but now i deploy my web application under a hosting server , and when i call the above action method i got the following error:-
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Net.Mail.SmtpException: The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
can anyone adivce on this please ?
I am using SingalR for my Chat Application. Wanted to play with Redis
and SignalR but I cannot find an working example where i can send msg to
specific connectionId. Below Code that works for a single server instance.
But when i make it a Web Garden with 3 process it stops working as my
server instance that gets the message cannot find the connectionId
for that destination UserId to send the message.
private readonly static ConnectionMapping<string> _connections = new ConnectionMapping<string>();
public void Send(string sendTo, string message, string from)
{
string fromclientid = Context.QueryString["clientid"];
foreach (var connectionId in _connections.GetConnections(sendTo))
{
Clients.Client(connectionId).send(fromclientid, message);
}
Clients.Caller.send(sendTo, "me: " + message);
}
public override Task OnConnected()
{
int clientid = Convert.ToInt32(Context.QueryString["clientid"]);
_connections.Add(clientid.ToString(), Context.ConnectionId);
}
I have used the example below to setup my box and code but none of
them have examples for sending from one client to specific client or
group of specific clients.
http://www.asp.net/signalr/overview/performance-and-scaling/scaleout-with-redis
https://github.com/mickdelaney/SignalR.Redis/tree/master/Redis.Sample
The ConnectionMapping instance in your Hub class will not synced across different SignalR server instances. You need to use permanent external storage such as a database or a Windows Azure table. Refer to this link for more details:
http://www.asp.net/signalr/overview/hubs-api/mapping-users-to-connections
I've been trying to get the GetClientAccessToken flow to work with the latest release 4.1.0 (via nuget), where I'm in control of all three parties: client, authorization server and resource server.
The situation I have started to prototype is that of a Windows client app (my client - eventually it will be WinRT but its just a seperate MVC 4 app right now to keep it simple), and a set of resources in a WebAPI project. I'm exposing a partial authorization server as a controller in the same WebAPI project right now.
Every time (and it seems regardless of the client type e.g. UserAgentClient or WebServerClient) I try GetClientAccessToken, by the time the request makes it to the auth server there is no clientIdentifier as part of the request, and so the request fails with:
2012-10-15 13:40:16,333 [41 ] INFO {Channel} Prepared outgoing AccessTokenFailedResponse (2.0) message for <response>:
error: invalid_client
error_description: The client secret was incorrect.
I've debugged through the source into DNOA and essentially the credentials I'm establishing on the client are getting wiped out by NetworkCredential.ApplyClientCredential inside ClientBase.RequestAccessToken. If I modify clientIdentifier to something reasonable, I can track through the rest of my code and see the correct lookups/checks being made, so I'm fairly confident the auth server code is ok.
My test client currently looks like this:
public class AuthTestController : Controller
{
public static AuthorizationServerDescription AuthenticationServerDescription
{
get
{
return new AuthorizationServerDescription()
{
TokenEndpoint = new Uri("http://api.leave-now.com/OAuth/Token"),
AuthorizationEndpoint = new Uri("http://api.leave-now.com/OAuth/Authorise")
};
}
}
public async Task<ActionResult> Index()
{
var wsclient = new WebServerClient(AuthenticationServerDescription, "KieranBenton.LeaveNow.Metro", "testsecret");
var appclient = new DotNetOpenAuth.OAuth2.UserAgentClient(AuthenticationServerDescription, "KieranBenton.LeaveNow.Metro", "testsecret");
var cat = appclient.GetClientAccessToken(new[] { "https://api.leave-now.com/journeys/" });
// Acting as the Leave Now client we have access to the users credentials anyway
// TODO: CANNOT do this without SSL (turn off the bits in web.config on BOTH sides)
/*var state = client.ExchangeUserCredentialForToken("kieranbenton", "password", new[] { "https://api.leave-now.com/journeys/" });
// Attempt to talk to the APIs WITH the access token
var resourceclient = new OAuthHttpClient(state.AccessToken);
var response = await resourceclient.GetAsync("https://api.leave-now.com/journeys/");
string sresponse = await response.Content.ReadAsStringAsync();*/
// A wrong one
/*var wresourceclient = new OAuthHttpClient("blah blah");
var wresponse = await wresourceclient.GetAsync("https://api.leave-now.com/journeys/");
string wsresponse = await wresponse.Content.ReadAsStringAsync();
// And none
var nresourceclient = new HttpClient();
var nresponse = await nresourceclient.GetAsync("https://api.leave-now.com/journeys/");
string nsresponse = await nresponse.Content.ReadAsStringAsync();*/
return Content("");
}
}
I can't figure out how to prevent this or if its by design what I'm doing incorrectly.
Any help appreciated.
The NetworkCredentialApplicator clears the client_id and secret from the outgoing message as you see, but it applies it as an HTTP Authorization header. However, HttpWebRequest clears that header on the way out, and only restores its value if the server responds with an HTTP error and a WWW-Authenticate header. It's quite bizarre behavior on .NET's part, if you ask me, to suppress the credential on the first outbound request.
So if the response from the auth server is correct (at least, what the .NET client is expecting) then the request will go out twice, and work the second time. Otherwise, you might try using the PostParameterApplicator instead.