2014-02-26 19:12:37 +00:00
|
|
|
//TODO add support for IE8-9 CORS via XDomain
|
|
|
|
//TODO better error handling, ala exceptions
|
|
|
|
|
2014-02-28 16:57:21 +00:00
|
|
|
/**
|
|
|
|
* @namespace Typertext
|
|
|
|
* @module Http
|
|
|
|
*/
|
2014-02-26 19:12:37 +00:00
|
|
|
module Typertext.Http {
|
|
|
|
export class HttpRequest implements Typertext.GenericRequest<HttpResponseHandler> {
|
2014-02-28 16:57:21 +00:00
|
|
|
/**
|
|
|
|
* The class that everything that calls an http(s) server should use and build on top of using callbacks
|
|
|
|
*
|
|
|
|
* @class HttpRequest
|
|
|
|
* @extends GenericRequest
|
|
|
|
*
|
|
|
|
* @author Kegan Myers <kegan@keganmyers.com>
|
|
|
|
* @version 0.3.0
|
|
|
|
* @constructor
|
|
|
|
*/
|
2014-03-04 22:51:55 +00:00
|
|
|
constructor() {
|
2014-02-26 19:12:37 +00:00
|
|
|
}
|
|
|
|
|
2014-02-28 16:57:21 +00:00
|
|
|
/**
|
|
|
|
* A convenience method for simply calling a GET
|
|
|
|
*
|
|
|
|
* @param {HttpUrl} request
|
|
|
|
* @param {HttpResponseHandler} callback
|
|
|
|
*/
|
2014-02-26 19:12:37 +00:00
|
|
|
public Get(request:HttpUrl, callback:HttpResponseHandler):void {
|
|
|
|
this.RawRequest(HttpMethod.GET, request, {}, callback);
|
|
|
|
}
|
|
|
|
|
2014-02-28 16:57:21 +00:00
|
|
|
/**
|
|
|
|
* A convenience method for simply calling a POST
|
|
|
|
*
|
|
|
|
* @param {HttpUrl} request
|
|
|
|
* @param {HttpPostData} postData
|
|
|
|
* @param {HttpResponseHandler} callback
|
|
|
|
*/
|
2014-02-26 19:12:37 +00:00
|
|
|
public Post(request:HttpUrl, postData:HttpPostData, callback:HttpResponseHandler):void {
|
2014-03-04 01:04:49 +00:00
|
|
|
this.RawRequest(HttpMethod.POST, request, postData, callback);
|
2014-02-26 19:12:37 +00:00
|
|
|
}
|
|
|
|
|
2014-02-28 16:57:21 +00:00
|
|
|
/**
|
|
|
|
* This is a method that calls against a specified HTTP server and does basic handling of responses, with no
|
|
|
|
* data manipulation
|
|
|
|
*
|
|
|
|
* @param {HttpMethod} method
|
|
|
|
* @param {HttpUrl} request
|
|
|
|
* @param {HttpPostData} postData
|
|
|
|
* @param {HttpResponseHandler} callback
|
|
|
|
*/
|
2014-02-26 19:12:37 +00:00
|
|
|
public RawRequest(method:HttpMethod, request:HttpUrl, postData:HttpPostData = {}, callback:HttpResponseHandler = (c)=> {
|
|
|
|
}):void {
|
2014-03-04 22:51:55 +00:00
|
|
|
var noop = (i:string)=>{
|
|
|
|
return "";
|
|
|
|
};
|
|
|
|
|
|
|
|
//Create a XHR
|
2014-02-26 19:12:37 +00:00
|
|
|
var xhr = new XMLHttpRequest();
|
2014-03-04 22:51:55 +00:00
|
|
|
|
|
|
|
//And let us know when it does something
|
2014-02-26 19:12:37 +00:00
|
|
|
xhr.onreadystatechange = ()=> {
|
2014-03-04 22:51:55 +00:00
|
|
|
//If the request is complete
|
2014-02-26 19:12:37 +00:00
|
|
|
if (xhr.readyState == 4) {
|
2014-03-04 22:51:55 +00:00
|
|
|
//Prepare a getter for the header
|
2014-03-03 18:35:46 +00:00
|
|
|
var getHeader = (name:string):string => {
|
|
|
|
return xhr.getResponseHeader(name);
|
|
|
|
};
|
2014-03-04 22:51:55 +00:00
|
|
|
|
|
|
|
//Check the status
|
2014-02-26 19:12:37 +00:00
|
|
|
if (xhr.status == 200) {
|
2014-03-04 22:51:55 +00:00
|
|
|
//And either succeed
|
2014-03-03 18:35:46 +00:00
|
|
|
callback(new HttpResponse(HttpResponseStatus.success, getHeader, xhr.status, xhr.responseText));
|
2014-02-26 19:12:37 +00:00
|
|
|
} else if (xhr.status >= 400 && xhr.status < 500) {
|
2014-03-04 22:51:55 +00:00
|
|
|
//Or fail miserably
|
2014-03-12 18:56:11 +00:00
|
|
|
callback(new HttpResponse(HttpResponseStatus.clientError, getHeader, xhr.status, xhr.responseText));
|
2014-02-26 19:12:37 +00:00
|
|
|
} else if (xhr.status >= 500 && xhr.status < 600) {
|
2014-03-04 22:51:55 +00:00
|
|
|
//Again
|
2014-03-12 18:56:11 +00:00
|
|
|
callback(new HttpResponse(HttpResponseStatus.serverError, getHeader, xhr.status, xhr.responseText));
|
2014-03-04 23:29:09 +00:00
|
|
|
} else {
|
|
|
|
//And again
|
2014-03-12 18:56:11 +00:00
|
|
|
callback(new HttpResponse(HttpResponseStatus.unknownError, getHeader, xhr.status, xhr.responseText));
|
2014-02-26 19:12:37 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
2014-03-04 22:51:55 +00:00
|
|
|
//Or if it times out
|
2014-02-26 19:12:37 +00:00
|
|
|
xhr.ontimeout = () => {
|
2014-03-04 22:51:55 +00:00
|
|
|
//And make a big deal of the failing
|
2014-03-12 18:56:11 +00:00
|
|
|
callback(new HttpResponse(HttpResponseStatus.timeout, noop, -1, ""));
|
2014-02-26 19:12:37 +00:00
|
|
|
};
|
|
|
|
|
2014-03-04 22:51:55 +00:00
|
|
|
//Now connect
|
2014-02-26 19:12:37 +00:00
|
|
|
xhr.open(HttpMethod[method], request.ToString(), true);
|
|
|
|
|
2014-03-04 22:51:55 +00:00
|
|
|
//And either send
|
2014-02-26 19:12:37 +00:00
|
|
|
if (method == HttpMethod.GET) {
|
2014-03-04 22:51:55 +00:00
|
|
|
//A get request
|
2014-02-26 19:12:37 +00:00
|
|
|
xhr.send();
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2014-03-04 22:51:55 +00:00
|
|
|
//Or set the content-type
|
2014-02-26 19:12:37 +00:00
|
|
|
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
|
2014-03-04 22:51:55 +00:00
|
|
|
//And send the post-data to the server
|
2014-02-26 21:58:23 +00:00
|
|
|
xhr.send(HttpUrl.UrlEncodeObject(postData));
|
2014-02-26 19:12:37 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|