70 lines
2.9 KiB
TypeScript
70 lines
2.9 KiB
TypeScript
//TODO add support for IE8-9 CORS via XDomain
|
|
//TODO better error handling, ala exceptions
|
|
|
|
module Typertext.Http {
|
|
export class HttpRequest implements Typertext.GenericRequest<HttpResponseHandler> {
|
|
private static parseHeaderString(headerStr:string):HttpHeaderData {
|
|
var headers:HttpHeaderData = {},
|
|
headerPairs:string[] = headerStr.split('\u000d\u000a');
|
|
for (var i:number = 0; i < headerPairs.length; i++) {
|
|
var headerPair:string = headerPairs[i],
|
|
index:number = headerPair.indexOf('\u003a\u0020');
|
|
if (index > 0) {
|
|
var key:string = headerPair.substring(0, index);
|
|
headers[key] = headerPair.substring(index + 2);
|
|
}
|
|
}
|
|
return headers;
|
|
}
|
|
|
|
constructor() {
|
|
}
|
|
|
|
public Get(request:HttpUrl, callback:HttpResponseHandler):void {
|
|
this.RawRequest(HttpMethod.GET, request, {}, callback);
|
|
}
|
|
|
|
public Post(request:HttpUrl, postData:HttpPostData, callback:HttpResponseHandler):void {
|
|
this.RawRequest(HttpMethod.GET, request, postData, callback);
|
|
}
|
|
|
|
public RawRequest(method:HttpMethod, request:HttpUrl, postData:HttpPostData = {}, callback:HttpResponseHandler = (c)=> {
|
|
}):void {
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.onreadystatechange = ()=> {
|
|
//Once the request completes
|
|
if (xhr.readyState == 4) {
|
|
var headers:HttpHeaderData = HttpRequest.parseHeaderString(xhr.getAllResponseHeaders());
|
|
if (xhr.status == 200) {
|
|
callback(new HttpResponse(HttpResponseStatus.success, headers, xhr.status, xhr.responseText));
|
|
|
|
} else if (xhr.status >= 400 && xhr.status < 500) {
|
|
//TODO generate a client error callback
|
|
throw new HttpException("Error type is unimplemented", -1, HttpResponseStatus.clientError);
|
|
|
|
} else if (xhr.status >= 500 && xhr.status < 600) {
|
|
//TODO generate a server error callback
|
|
throw new HttpException("Error type is unimplemented", -1, HttpResponseStatus.serverError);
|
|
|
|
} else {
|
|
throw new HttpException("An unknown error has occurred", -2, HttpResponseStatus.unknownError);
|
|
}
|
|
}
|
|
};
|
|
|
|
xhr.ontimeout = () => {
|
|
callback(new HttpResponse(HttpResponseStatus.timeout));
|
|
};
|
|
|
|
xhr.open(HttpMethod[method], request.ToString(), true);
|
|
|
|
if (method == HttpMethod.GET) {
|
|
xhr.send();
|
|
return;
|
|
}
|
|
|
|
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
|
|
xhr.send(HttpUrl.URLEncodeObject(postData));
|
|
}
|
|
}
|
|
} |