public virtual async void Run(HttpContext context)
{
context.Features.Get <IHttpMaxRequestBodySizeFeature>().MaxRequestBodySize = null;
var requestStart = DateTime.Now;
DateTime requestEnd;
TimeSpan tspan;
var requestType = "";
var path = cleanPath(context.Request.Path.ToString());
var paths = path.Split('/').ToArray();
var extension = "";
//get request file extension (if exists)
if (path.IndexOf(".") >= 0)
{
for (int x = path.Length - 1; x >= 0; x += -1)
{
if (path.Substring(x, 1) == ".")
{
extension = path.Substring(x + 1); return;
}
}
}
server.requestCount += 1;
if (server.environment == Server.enumEnvironment.development)
{
Console.WriteLine("--------------------------------------------");
Console.WriteLine("{0} GET {1}", DateTime.Now.ToString("hh:mm:ss"), path);
//optionally, wipe Scaffold cache to enable developer updates to html files when server is running
server.Scaffold = new Dictionary <string, SerializedScaffold>();
}
//get form files (if any exist)
IFormCollection form = null;
if (context.Request.ContentType != null)
{
if (context.Request.ContentType.IndexOf("multipart/form-data") >= 0)
{
form = context.Request.Form;
}
}
byte[] bytes = new byte[0];
string data = "";
int dataType = 0; //0 = ajax, 1 = HTML form post, 2 = multi-part form (with file uploads)
//figure out what kind of data was sent with the request
if (form == null && context.Request.Body.CanRead)
{
//get POST data from request
using (MemoryStream ms = new MemoryStream())
{
context.Request.Body.CopyTo(ms);
bytes = ms.ToArray();
}
data = Encoding.UTF8.GetString(bytes, 0, bytes.Length).Trim();
}
else
{
//form files exist
dataType = 2;
}
if (paths.Length > 1)
{
if (paths[0] == "api")
{
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//run a web service via ajax (e.g. /api/namespace/class/function) //////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
if (cleanNamespace(paths))
{
//execute web service
requestType = "service";
//get parameters from request body, including page id
var parms = new Dictionary <string, string>();
object[] paramVals;
var param = "";
if (data.Length > 0)
{
if (data.IndexOf("Content-Disposition") > 0)
{
//multi-part file upload
dataType = 2;
}
else if (data.IndexOf("{") >= 0 && data.IndexOf("}") > 0 && data.IndexOf(":") > 0)
{
//get method parameters from POST S.ajax.post()
Dictionary <string, object> attr = JsonConvert.DeserializeObject <Dictionary <string, object> >(data);
foreach (KeyValuePair <string, object> item in attr)
{
parms.Add(item.Key.ToLower(), item.Value.ToString());
}
}
else if (data.IndexOf("=") >= 0)
{
//HTML form POST data
dataType = 1;
}
}
else
{
//get method parameters from query string
foreach (var key in context.Request.Query.Keys)
{
parms.Add(key.ToLower(), context.Request.Query[key].ToString());
}
}
//start building Web API response (find method to execute & return results)
var S = new Core(server, context);
//load service class from URL path
string className = S.Server.nameSpace + ".Services." + paths[1];
string methodName = paths[2];
if (paths.Length == 4)
{
className += "." + paths[2]; methodName = paths[3];
}
var routes = new global::Routes(S);
var service = routes.FromServiceRoutes(className);
if (service == null)
{
try
{
Type stype = Type.GetType(className);
service = (Service)Activator.CreateInstance(stype, new object[] { S });
}
catch (Exception) { }
}
//check if service class was found
if (service == null)
{
S.Response.ContentType = "text/html";
context.Response.WriteAsync("no service found");
S.Unload();
return;
}
if (dataType == 1)
{
//parse HTML form POST data and send to new Service instance
string[] items = S.Server.UrlDecode(data).Split('&');
string[] item;
for (var x = 0; x < items.Length; x++)
{
item = items[x].Split('=');
service.Form.Add(item[0], item[1]);
}
}
else if (dataType == 2)
{
//send multi-part file upload data to new Service instance
service.Files = form.Files;
}
//execute method from new Service instance
Type type = Type.GetType(className);
MethodInfo method = type.GetMethod(methodName);
//try to cast params to correct types
ParameterInfo[] methodParams = method.GetParameters();
paramVals = new object[methodParams.Length];
for (var x = 0; x < methodParams.Length; x++)
{
//find correct key/value pair
param = "";
foreach (var item in parms)
{
if (item.Key == methodParams[x].Name.ToLower())
{
param = item.Value;
break;
}
}
if (param == "")
{
//set default value for empty parameter
var t = methodParams[x].ParameterType;
if (t == typeof(Int32))
{
param = "0";
}
}
//cast params to correct (supported) types
if (methodParams[x].ParameterType.Name != "String")
{
var i = 0;
if (int.TryParse(param, out i) == true)
{
if (methodParams[x].ParameterType.IsEnum == true)
{
//enum
paramVals[x] = Enum.Parse(methodParams[x].ParameterType, param);
}
else
{
//int
paramVals[x] = Convert.ChangeType(i, methodParams[x].ParameterType);
}
}
else if (methodParams[x].ParameterType.FullName.Contains("DateTime"))
{
if (param == "")
{
paramVals[x] = null;
}
else
{
try
{
paramVals[x] = DateTime.Parse(param);
}
catch (Exception) { }
}
}
else if (methodParams[x].ParameterType.IsArray)
{
var arr = param.Replace("[", "").Replace("]", "").Replace("\r", "").Replace("\n", "").Split(",").Select(a => { return(a.Trim()); }).ToList();
if (methodParams[x].ParameterType.FullName == "System.Int32[]")
{
paramVals[x] = arr.Select(a => { return(int.Parse(a)); }).ToArray();
}
else
{
paramVals[x] = Convert.ChangeType(arr, methodParams[x].ParameterType);
}
}
else if (methodParams[x].ParameterType.Name.IndexOf("Dictionary") == 0)
{
paramVals[x] = (Dictionary <string, string>)S.Util.Serializer.ReadObject(param, typeof(Dictionary <string, string>));
}
else
{
paramVals[x] = Convert.ChangeType(param, methodParams[x].ParameterType);
}
}
else
{
//string
paramVals[x] = param;
}
}
object result = null;
try
{
result = method.Invoke(service, paramVals);
}
catch (Exception ex)
{
if (server.environment == Server.enumEnvironment.development)
{
Console.WriteLine(ex.Message + "\n" + ex.StackTrace);
}
throw ex;
}
//finally, unload the Datasilk Core:
//close SQL connection, save User info, etc (before sending response)
S.Unload();
context.Response.ContentType = "text/json";
if (result != null)
{
context.Response.WriteAsync((string)result);
}
else
{
context.Response.WriteAsync("{\"error\":\"no content returned\"}");
}
}
}
}
if (requestType == "" && extension == "")
{
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//page request (initialize client-side application) ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
requestType = "page";
var S = new Core(server, context);
//create instance of Page class based on request URL path
var html = "";
var newpaths = path.Split('?', 2)[0].Split('/');
var routes = new global::Routes(S);
var page = routes.FromPageRoutes(newpaths[0].ToLower());
if (page == null)
{
//page is not part of any known routes, try getting page class manually
Type type = Type.GetType((S.Server.nameSpace + ".Pages." + (newpaths[0] == "" ? "Login" : S.Util.Str.Capitalize(newpaths[0].Replace("-", " ")).Replace(" ", ""))));
page = (Page)Activator.CreateInstance(type, new object[] { S });
}
if (page != null)
{
//render page
if (form != null)
{
page.Files = form.Files;
}
try
{
html = page.Render(newpaths);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message + "\n" + ex.StackTrace);
throw ex;
}
}
else
{
//show 404 error
page = new Page(S);
html = page.Error404();
}
//unload Datasilk Core
page = null;
S.Unload();
//send response back to client
S.Response.ContentType = "text/html";
await S.Response.WriteAsync(html);
}
if (server.environment == Server.enumEnvironment.development)
{
requestEnd = DateTime.Now;
tspan = requestEnd - requestStart;
server.requestTime += (tspan.Seconds);
Console.WriteLine("END REQUEST {0} ms, {1} {2}", tspan.Milliseconds, path, requestType);
Console.WriteLine("");
}
}
