Authentication Succeeds when Debugging but Fails on Azure App Service

问题

I am simply getting some users from SharePoint using CSOM using the below method. This has always worked for me and I've had no issues.

All of a sudden, when I try calling this method today it fails with this error

The sign-in name or password does not match one in the Microsoft account system.
at Microsoft.SharePoint.Client.Idcrl.IdcrlAuth.GetServiceToken(String securityXml, String serviceTarget, String servicePolicy)
    at Microsoft.SharePoint.Client.Idcrl.IdcrlAuth.GetServiceToken(String username, String password, String serviceTarget, String servicePolicy)
    at Microsoft.SharePoint.Client.Idcrl.SharePointOnlineAuthenticationProvider.GetAuthenticationCookie(Uri url, String username, SecureString password, Boolean alwaysThrowOnFailure, EventHandler`1 executingWebRequest)
    at Microsoft.SharePoint.Client.SharePointOnlineCredentials.GetAuthenticationCookie(Uri url, Boolean refresh, Boolean alwaysThrowOnFailure)
    at Microsoft.SharePoint.Client.ClientRuntimeContext.SetupRequestCredential(ClientRuntimeContext context, HttpWebRequest request)
    at Microsoft.SharePoint.Client.SPWebRequestExecutor.GetRequestStream()
    at Microsoft.SharePoint.Client.ClientContext.GetFormDigestInfoPrivate()
    at Microsoft.SharePoint.Client.ClientContext.EnsureFormDigest()
    at Microsoft.SharePoint.Client.ClientContext.ExecuteQuery()
    at SharePointLibrary.SPClient.GetAllUsers() in C:\Users\bassie\source\repos\TFS\ADVWKSP\SharePointLibrary\SPClientUsers.cs:line 39

But it only fails after publishing to Azure.

I have logged the username and password being used to the Azure applications streams, and they are definitely correct, and the same ones being used when debugging on my machine.

How is this possible? Am I going crazy?

Constructor

public SPClient(string url)
{
    baseUrl = url;
    var userName = ConfigurationManager.ConnectionStrings["SPsvcUsername"].ConnectionString;
    var password = ConfigurationManager.ConnectionStrings["SPsvcPassword"].ConnectionString;
    Trace.TraceInformation(userName);
    Trace.TraceInformation(password);

    var securePassword = new SecureString();
    foreach (var c in password)
    {
        securePassword.AppendChar(c);
    }
    credentials = new SharePointOnlineCredentials(userName, securePassword);
}

Get Users method

public IEnumerable<SharePointUser> GetAllUsers()
{
    var spUsers = new List<SharePointUser>();

    using (var clientContext = new ClientContext(baseUrl))
    {
        clientContext.Credentials = credentials;

        var web = clientContext.Web;
        var list = clientContext.Web.SiteUserInfoList;
        var users = list.GetItems(new CamlQuery());
        clientContext.Load(users, includes => includes.Include(
            f => f["GUID"],
            f => f["FirstName"],
            f => f["LastName"],
            f => f["UserName"],
            f => f["Picture"],
            f => f.DisplayName));

        clientContext.ExecuteQuery();

        foreach (var user in users)
        {
            var imagePath = (FieldUrlValue)user.FieldValues["Picture"];
            spUsers.Add(new SharePointUser()
            {
                FirstName = (user.FieldValues["FirstName"] is string firstName) ? firstName : string.Empty,
                LastName = (user.FieldValues["LastName"] is string lastName) ? lastName : string.Empty,
                UserName = (user.FieldValues["UserName"] is string userName) ? userName.ToLower() : string.Empty,
                ImagePath = (user.FieldValues["Picture"] is FieldUrl pictureUrl) ? pictureUrl.ToString() : string.Empty,
                DisplayName = user.DisplayName
            });
        }
    }

    return spUsers;
}

回答1:

Since the credentials are correct, it may be that Multi-Factor Authentication is enabled and a policy may be triggering it for this account. If that is the case, you could disable MFA for that specific account.

Also, the AuthenticationManager class that is part of the PnP Core library may be beneficial as it is helpful for various authentication scenarios.

来源：https://stackoverflow.com/questions/50404829/authentication-succeeds-when-debugging-but-fails-on-azure-app-service

标签

asp.net-mvc

azure

sharepoint

csom