public async Task Invoke(HttpContext context)
{
Log.Info("url path = " + context.Request.Path);
if (this.ReverseProxyConfig.excludePages.Contains(context.Request.Path.Value.ToLower()) ||
(!string.IsNullOrEmpty(this.ReverseProxyConfig.fixedPage) && !this.ReverseProxyConfig.fixedPage.Equals(context.Request.Path.Value, StringComparison.OrdinalIgnoreCase)))
{
await next.Invoke(context);
return;
}
IGatawayResult result = null;
var wrapper = GetResponseWrapper();
var reverseContext = GetProxyContext(context, this.ReverseProxyConfig);
RequestDataResolver dataResolver = GetDataResolver();
if (dataResolver == null)
{
result = wrapper.Wrap(null, "0003", "网关配置错误");
await result.ExecuteAsync(context);
return;
}
var rlvres = dataResolver.Resolve(reverseContext);
if (!rlvres.Success)
{
result = wrapper.Wrap(null, rlvres.StatusCode.ToString().PadLeft(4, '0'), rlvres.Message);
await result.ExecuteAsync(context);
return;
}
wrapper.Merchant = reverseContext.Merchant = rlvres.Content.GetMerchant();
var validateCollection = this.GetValidateCollection();
if (validateCollection != null && validateCollection.Count() > 0)
{
foreach (var validateObject in validateCollection)
{
var validRes = validateObject.Validate(reverseContext);
if (!validRes.Success)
{
result = wrapper.Wrap(null, validRes.StatusCode.ToString().PadLeft(4, '0'), validRes.Message);
await result.ExecuteAsync(context);
return;
}
}
}
ReverseProxyServiceMapping serviceMapping = new ReverseProxyServiceMapping();
if (!serviceMapping.Resolve(reverseContext))
{
result = wrapper.Wrap(null, "0400", "服务不存在");
await result.ExecuteAsync(context);
return;
}
if (!SendProxyRequest(reverseContext, out string response))
{
result = wrapper.Wrap(null, "0503", $"系统错误[{response}]");
await result.ExecuteAsync(context);
return;
}
result = wrapper.Wrap(response, null, null);
await result.ExecuteAsync(context);
}
private RequestDataResolver GetDataResolver()
{
RequestDataResolver resolver = (RequestDataResolver)_svp.GetService(typeof(RequestDataResolver));
return(resolver);
}
