public static void Main()
{
IConfigurationRoot config = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables().Build();
AppSettings appSettings = config.Get <AppSettings>();
IWebHostBuilder builder = new WebHostBuilder()
.UseKestrel(options => options.AddServerHeader = false);
if (appSettings.Server.UseIIS)
{
builder.UseIISIntegration();
}
if (!appSettings.Server.UseIIS && appSettings.Auth.UseImpersonation)
{
builder.UseHttpSys(options =>
{
options.Authentication.Schemes = Microsoft.AspNetCore.Server.HttpSys.AuthenticationSchemes.NTLM |
Microsoft.AspNetCore.Server.HttpSys.AuthenticationSchemes
.Negotiate;
options.Authentication.AllowAnonymous = false;
});
}
var host = builder
.ConfigureLogging(loggerFactory =>
{
if (Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") == "Development")
{
loggerFactory.AddConsole();
}
})
.ConfigureServices(services =>
{
if (appSettings.Cors.Enabled)
{
services.AddCors();
}
})
.Configure(app =>
{
app.ConfigureCors(appSettings);
app.Run(async context =>
{
if (context.Request.IsInWhiteList(appSettings))
{
context.Response.StatusCode = 403;
return;
}
// Create client with auth if needed
HttpClient client = HttpClientExtensions.GetWithAuth(appSettings);
// Create request
HttpRequestMessage request = context.Request.ToHttpRequestMessage(appSettings);
HttpResponseMessage response = null;
// Get response
if (appSettings.Auth.UseImpersonation)
{
var user = (WindowsIdentity)context.User.Identity;
WindowsIdentity.RunImpersonated(user.AccessToken, () =>
{
response = client.SendAsync(request).GetAwaiter().GetResult();
});
}
else
{
response = await client.SendAsync(request);
}
// Forward response to client
await context.Response.SetResponse(response);
client.Dispose();
});
})
.Build();
host.Run();
}
public static void Main()
{
IConfigurationRoot config = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables().Build();
AppSettings appSettings = config.Get <AppSettings>();
IWebHostBuilder builder = new WebHostBuilder()
.UseKestrel(options => options.AddServerHeader = false);
if (appSettings.Server != null && appSettings.Server.UseIIS)
{
builder.UseIISIntegration();
}
if (appSettings.Server != null && !appSettings.Server.UseIIS && appSettings.Auth != null && appSettings.Auth.UseImpersonation)
{
builder.UseHttpSys(options =>
{
options.Authentication.Schemes = Microsoft.AspNetCore.Server.HttpSys.AuthenticationSchemes.NTLM |
Microsoft.AspNetCore.Server.HttpSys.AuthenticationSchemes
.Negotiate;
options.Authentication.AllowAnonymous = false;
});
}
var host = builder
.ConfigureLogging(loggerFactory =>
{
loggerFactory.AddConfiguration(config.GetSection("Logging"));
loggerFactory.AddConsole();
})
.ConfigureServices(services =>
{
if (appSettings.Cors != null && appSettings.Cors.Enabled)
{
services.AddCors();
}
})
.Configure(app =>
{
app.ConfigureCors(appSettings);
app.Run(async context =>
{
if (appSettings.Cors != null && appSettings.Cors.Enabled && context.Request.Method == "Options")
{
return;
}
ILogger logger = context.RequestServices.GetService <ILogger <Program> >();
logger.LogDebug($"Request: {context.Request.Method} {context.Request.Host.Value}{(context.Request.Path.HasValue ? context.Request.Path.Value : "")}");
if (context.Request.IsInWhiteList(appSettings))
{
context.Response.StatusCode = 403;
return;
}
// Create client with auth if needed
HttpClient client = HttpClientExtensions.GetWithAuth(appSettings, context, logger);
// Create request
HttpRequestMessage request = context.Request.ToHttpRequestMessage(appSettings);
HttpResponseMessage response = null;
// Get response
if (appSettings.Auth != null && appSettings.Auth.UseImpersonation)
{
var user = (WindowsIdentity)context.User.Identity;
WindowsIdentity.RunImpersonated(user.AccessToken, () =>
{
response = client.SendAsync(request).GetAwaiter().GetResult();
client.Dispose();
});
}
else
{
response = await client.SendAsync(request);
logger.LogInformation($"End api response status: {response.StatusCode}");
if (!response.IsSuccessStatusCode && appSettings.Request?.RetryingTimes != null)
{
for (int i = 1; i <= appSettings.Request.RetryingTimes && !response.IsSuccessStatusCode; i++)
{
logger.LogInformation($"Retrying {i} time...");
request = context.Request.ToHttpRequestMessage(appSettings);
response = await client.SendAsync(request);
}
}
client.Dispose();
}
// Forward response to client
await context.Response.SetResponse(response);
});
})
.Build();
host.Run();
}
