public static void UseCors(this IMiddlewareSupport middleware, Action <CorsOptions> setOptions = null)
{
middleware.Use(async(context, next) =>
{
context.Response.SetCorsHeaders(CorsOptions.GetCorsOptions(setOptions));
await next(context);
});
}
public static void JwtAuth(this IMiddlewareSupport middlewareSupport, ITokenDecoder <JwtToken> tokenDecoder,
ILogger logger, Func <Request, bool> excludeFilter = null)
{
middlewareSupport.Use(async(context, next) =>
{
if (excludeFilter != null && excludeFilter(context.Request))
{
await next(context);
return;
}
const string jwtHeaderPrefix = "Bearer ";
if (!context.Request.Headers.ContainsKey("Authorization"))
{
await Task.Run(() => context.Response.StatusCode = HttpStatusCode.Unauthorized);
return;
}
var authorizationHeader = context.Request.Headers["Authorization"].FirstOrDefault();
if (authorizationHeader == null || !authorizationHeader.StartsWith(jwtHeaderPrefix))
{
await Task.Run(() => context.Response.StatusCode = HttpStatusCode.Unauthorized);
return;
}
var token = authorizationHeader.Substring(jwtHeaderPrefix.Length);
try
{
var payload = tokenDecoder.DecodeToken(token);
var tokenExpires = ExpDateTimeConverter.ToDateTime(payload.exp);
if (tokenExpires <= DateTime.UtcNow)
{
await Task.Run(() => context.Response.StatusCode = HttpStatusCode.Unauthorized);
return;
}
context.Extensions.Register(new Session.Session(payload.username));
}
catch (Exception e)
{
logger.LogError(e, $"Request {context.Request.Method} {context.Request.Url} unauthorized!");
await Task.Run(() => context.Response.StatusCode = HttpStatusCode.Unauthorized);
return;
}
await next(context);
});
}
public static void UseRestErrorHandling(
this IMiddlewareSupport middlewareSupport,
IErrorHandlingConfiguration configuration,
ExceptionStatusCodeMapper mapper,
ILogger <ErrorHandlingModule> logger)
{
middlewareSupport.Use(async(context, next) =>
{
try
{
await next(context);
}
catch (Exception e)
{
logger.LogError(e, $"Error during processing request: {context.Request.Method} {context.Request.Url}");
var mimeTypes = context.Request.GetResponseMimeTypesPriority(new[]
{
MediaTypeNames.Application.Json,
MediaTypeNames.Text.Html
});
if (mimeTypes != null)
{
switch (mimeTypes.FirstOrDefault())
{
case MediaTypeNames.Application.Json:
await context.Response.SetJsonResponse(e, mapper, configuration);
return;
case MediaTypeNames.Text.Html:
await context.Response.SetHtmlResponse(e, configuration);
return;
}
}
await context.Response.SetHtmlResponse(e, configuration);
}
});
}
