protected async override Task <HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
var id = request.RequestUri.AbsolutePath;
if (!id.StartsWith(baseRoute, StringComparison.OrdinalIgnoreCase))
{
return(await base.SendAsync(request, cancellationToken));
}
id = id.Substring(baseRoute.Length);
var cacheKey = request.RequestUri.PathAndQuery;
var cached = await cache?.Get(cacheKey);
if (cached != null)
{
return(new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new ByteArrayContent(cached)
});
}
var target = await LoadImage(id);
if (target == null)
{
return(await base.SendAsync(request, cancellationToken));
}
var query = request.RequestUri.Query;
var result = string.IsNullOrEmpty(query) ? target : invoker.Invoke(target, query.Substring(1));
var bytes = GetBytes(result);
if (bytes != null)
{
await cache.Put(cacheKey, bytes);
return(new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new ByteArrayContent(bytes)
});
}
return(new HttpResponseMessage(HttpStatusCode.InternalServerError));
}
public void invoke_url_commands(string instruction, string expected)
{
Assert.Equal(this, invoker.Invoke(this, instruction));
Assert.Equal(expected, Text.ToString());
}
