SignalR gives me 404 when trying to connect for some users. URLs are the same except for access_token.
It is stable reproducible per user (I mean that some users are stable OK, some users are stable 404).
access_token parsed jwt diff (left is OK user, right gets 404):
I did a trace level of logs and have next:
For the OK user:
For the user that gets 404:
Note: URLs under black squares are the same.
Front End is Angular 9 with package "@microsoft/signalr": "^3.1.8", and here's the code that builds the connection:
private buildHub(): HubConnection {
console.log(this.authService.accessToken);
let builder = new HubConnectionBuilder()
.withAutomaticReconnect()
.configureLogging(LogLevel.Information)
.withUrl('ws/notificationHub', {
accessTokenFactory: () => this.authService.accessToken
});
if (this.debugMode) {
builder = builder.configureLogging(LogLevel.Trace);
}
return builder.build();
}
Backend is using next code in Startup for configuring signalR hub:
In public void ConfigureServices(IServiceCollection services):
services.AddSignalR()
.AddJsonProtocol(options =>
{
options.PayloadSerializerSettings.ContractResolver = new DefaultContractResolver();
});
In public void Configure(IApplicationBuilder app, IHostingEnvironment env):
app.UseSignalR(route =>
{
route.MapHub<NotificationHub>("/ws/notificationHub");
});
Also we use custom authentication, so we have Authorize attribute for the Hub class:
[Authorize]
public class NotificationHub: Hub<INotificationHubClient>
and this code in public void ConfigureServices(IServiceCollection services):
services.AddAuthentication(IdentityServerAuthenticationDefaults.AuthenticationScheme)
.AddJwtBearer(options =>
{
options.Authority = identityServerSettings.Url;
options.Audience = identityServerSettings.ApiScopeName;
options.RequireHttpsMetadata = identityServerSettings.RequireHttpsMetadata;
options.Events = new Microsoft.AspNetCore.Authentication.JwtBearer.JwtBearerEvents
{
OnMessageReceived = context =>
{
var accessToken = context.Request.Query["access_token"];
var path = context.HttpContext.Request.Path;
if (!string.IsNullOrEmpty(accessToken) && path.StartsWithSegments("/ws"))
{
context.Token = accessToken;
}
return Task.CompletedTask;
}
};
});
Unfortunately, I don't have the full access to the environment where it is reproducible, but I can request to see any settings or try to make some changes.
What else can I try to troubleshoot the issue?
UPDATE: negotiate is fine for both users.
