public static AppDelegate App()
{
return call =>
{
var request = new Request(call);
var response = new Response { Buffer = true, ContentType = "text/html" };
var wilson = "left - right\r\n123456789012\r\nhello world!\r\n";
var href = "?flip=left";
if (request.Query["flip"] == "left")
{
wilson = wilson.Split(new[] { System.Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries)
.Select(line => new string(line.Reverse().ToArray()))
.Aggregate("", (agg, line) => agg + line + System.Environment.NewLine);
href = "?flip=right";
}
response.Write("<title>Wilson</title>");
response.Write("<pre>");
response.Write(wilson);
response.Write("</pre>");
if (request.Query["flip"] == "crash")
{
throw new ApplicationException("Wilson crashed!");
}
response.Write("<p><a href='" + href + "'>flip!</a></p>");
response.Write("<p><a href='?flip=crash'>crash!</a></p>");
response.End();
return response.GetResultAsync();
};
}
public static AppDelegate Middleware(AppDelegate app)
{
return (call, callback) =>
{
Action<Exception, Action<ArraySegment<byte>>> showErrorMessage =
(ex, write) =>
ErrorPage(call, ex, text =>
{
var data = Encoding.ASCII.GetBytes(text);
write(new ArraySegment<byte>(data));
});
Action<Exception> showErrorPage = ex =>
{
var response = new Response(callback) { Status = "500 Internal Server Error", ContentType = "text/html" };
response.Start(() =>
{
showErrorMessage(ex, data => response.Write(data));
response.End();
});
};
try
{
app(call, (result, error) =>
{
if (error != null)
{
showErrorPage(error);
}
else
{
var body = result.Body;
result.Body = (write, end, cancel) =>
{
showErrorPage = ex =>
{
if (ex != null)
{
showErrorMessage(ex, data => write(data, null));
}
end(null);
};
body.Invoke(write, showErrorPage, cancel);
};
callback(result, null);
}
});
}
catch (Exception exception)
{
showErrorPage(exception);
}
};
}
public static AppDelegate Middleware(AppDelegate app)
{
return (env, result, fault) =>
{
Action<Exception, Action<ArraySegment<byte>>> showErrorMessage =
(ex, write) =>
ErrorPage(env, ex, text =>
{
var data = Encoding.ASCII.GetBytes(text);
write(new ArraySegment<byte>(data));
});
Action<Exception> showErrorPage = ex =>
{
var response = new Response(result) { Status = "500 Internal Server Error", ContentType = "text/html" };
response.Start(() =>
{
showErrorMessage(ex, data => response.Write(data));
response.End();
});
};
try
{
app(
env,
(status, headers, body) =>
result(
status,
headers,
(write, flush, end, token) =>
{
showErrorPage = ex =>
{
if (ex != null)
{
showErrorMessage(ex, data => write(data));
}
end(null);
};
body(
write,
flush,
showErrorPage,
token);
}),
ex => showErrorPage(ex));
}
catch (Exception exception)
{
showErrorPage(exception);
}
};
}
public void Finish_will_call_result_delegate_with_current_status_and_headers()
{
var response = new Response(Result)
{
Status = "200 Blah",
ContentType = "text/blah",
};
Assert.That(_status, Is.Null);
response.End();
Assert.That(_status, Is.EqualTo("200 Blah"));
Assert.That(_headers.GetHeader("Content-Type"), Is.EqualTo("text/blah"));
}
public static AppDelegate ShowEnvironment()
{
return (env, result, fault) =>
{
var response = new Response(result)
{
Status = "200 OK",
ContentType = "text/xml"
};
response.Start(() =>
{
var detail = env.Select(kv => new XElement(kv.Key, kv.Value));
var xml = new XElement("xml", detail.OfType<object>().ToArray());
response.End(xml.ToString());
});
};
}
public Task Invoke(IDictionary<string, object> env)
{
var request = new Request(env);
var response = new Response(env)
{
ContentType = "text/html",
};
var wilson = "left - right\r\n123456789012\r\nhello world!\r\n";
var href = "?flip=left";
if (request.Query["flip"] == "left")
{
wilson = wilson.Split(new[] {System.Environment.NewLine}, StringSplitOptions.RemoveEmptyEntries)
.Select(line => new string(line.Reverse().ToArray()))
.Aggregate("", (agg, line) => agg + line + System.Environment.NewLine);
href = "?flip=right";
}
TimerLoop(350,
() => response.Write("<title>Hutchtastic</title>"),
() => response.Write("<pre>"),
() => response.Write(wilson),
() => response.Write("</pre>"),
() =>
{
if (request.Query["flip"] == "crash")
{
throw new ApplicationException("Wilson crashed!");
}
},
() => response.Write("<p><a href='" + href + "'>flip!</a></p>"),
() => response.Write("<p><a href='?flip=crash'>crash!</a></p>"),
() => response.End())
.Catch(errorInfo =>
{
response.End(errorInfo.Exception);
return errorInfo.Handled();
});
return response.Task;
}
public void Write_calls_will_spool_until_finish_is_called()
{
var resp = new Response(Result) { Status = "200 Yep" };
resp.Write("this");
resp.Write("is");
resp.Write("a");
resp.Write("test");
resp.End();
Assert.That(_status, Is.EqualTo("200 Yep"));
var data = Encoding.UTF8.GetString(Consume());
Assert.That(data, Is.EqualTo("thisisatest"));
}
