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http.ts
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233 lines (194 loc) · 6.46 KB
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import image = require("image-source");
import definition = require("http");
import httpRequest = require("http/http-request");
import types = require("utils/types");
// merge the exports of the request file with the exports of this file
declare var exports;
require("utils/module-merge").merge(httpRequest, exports);
export function getString(arg: any): Promise<string> {
return new Promise<string>((resolve, reject) => {
httpRequest.request(typeof arg === "string" ? { url: arg, method: "GET" } : arg)
.then(r => resolve(r.content.toString()), e => reject(e));
});
}
export function getJSON<T>(arg: any): Promise<T> {
return new Promise<T>((resolve, reject) => {
httpRequest.request(typeof arg === "string" ? { url: arg, method: "GET" } : arg)
.then(r => resolve(r.content.toJSON()), e => reject(e));
});
}
export function getImage(arg: any): Promise<image.ImageSource> {
return new Promise<image.ImageSource>((resolve, reject) => {
httpRequest.request(typeof arg === "string" ? { url: arg, method: "GET" } : arg)
.then(r => {
r.content.toImage().then(source => resolve(source));
}, e => reject(e));
});
}
export class XMLHttpRequest {
public UNSENT = 0;
public OPENED = 1;
public HEADERS_RECEIVED = 2;
public LOADING = 3;
public DONE = 4;
private _options: definition.HttpRequestOptions;
private _readyState: number;
private _status: number;
private _response: any;
private _responseText: string = "";
private _headers: any;
private _errorFlag: boolean;
public onreadystatechange: Function;
constructor() {
this._readyState = this.UNSENT;
}
public open(method: string, url: string, async?: boolean, user?: string, password?: string) {
if (types.isString(method) && types.isString(url)) {
this._options = { url: url, method: method };
this._options.headers = {};
if (types.isString(user)) {
this._options.headers["user"] = user;
}
if (types.isString(password)) {
this._options.headers["password"] = password;
}
this._setReadyState(this.OPENED);
}
}
public abort() {
this._errorFlag = true;
this._response = null;
this._responseText = null;
this._headers = null;
this._status = null;
if (this._readyState === this.UNSENT || this._readyState === this.OPENED || this._readyState === this.DONE) {
this._readyState = this.UNSENT;
} else {
this._setReadyState(this.DONE);
}
}
public send(data?: string) {
this._errorFlag = false;
this._response = null;
this._responseText = null;
this._headers = null;
this._status = null;
if (types.isDefined(this._options)) {
if (types.isString(data)) {
this._options.content = data;
}
httpRequest.request(this._options).then(r=> {
if (!this._errorFlag) {
this._status = r.statusCode;
this._response = r.content.raw;
this._headers = r.headers;
this._setReadyState(this.HEADERS_RECEIVED);
this._setReadyState(this.LOADING);
this._responseText = r.content.toString();
this._setReadyState(this.DONE);
}
}).catch(e => {
this._errorFlag = true;
});
}
}
public setRequestHeader(header: string, value: string) {
if (types.isDefined(this._options) && types.isString(header) && types.isString(value)) {
this._options.headers[header] = value;
}
}
public getAllResponseHeaders(): string {
if (this._readyState < 2 || this._errorFlag) {
return "";
}
var result = "";
for (var i in this._headers) {
// Cookie headers are excluded
if (i !== "set-cookie" && i !== "set-cookie2") {
result += i + ": " + this._headers[i] + "\r\n";
}
}
return result.substr(0, result.length - 2);
}
public getResponseHeader(header: string): string {
if (types.isString(header) && this._readyState > 1
&& this._headers
&& this._headers[header]
&& !this._errorFlag
) {
return this._headers[header];
}
return null;
}
public overrideMimeType(mime: string) {
//
}
get readyState(): number {
return this._readyState;
}
private _setReadyState(value: number) {
if (this._readyState !== value) {
this._readyState = value;
if (types.isFunction(this.onreadystatechange)) {
this.onreadystatechange();
}
}
}
get responseText(): string {
return this._responseText;
}
get response(): any {
return this._response;
}
get status(): number {
return this._status;
}
get statusText(): string {
if (this._readyState === this.UNSENT || this._readyState === this.OPENED || this._errorFlag) {
return "";
}
return this._status + " " + statuses[this._status];
}
}
var statuses = {
100: "Continue",
101: "Switching Protocols",
200: "OK",
201: "Created",
202: "Accepted",
203: "Non - Authoritative Information",
204: "No Content",
205: "Reset Content",
206: "Partial Content",
300: "Multiple Choices",
301: "Moved Permanently",
302: "Found",
303: "See Other",
304: "Not Modified",
305: "Use Proxy",
307: "Temporary Redirect",
400: "Bad Request",
401: "Unauthorized",
402: "Payment Required",
403: "Forbidden",
404: "Not Found",
405: "Method Not Allowed",
406: "Not Acceptable",
407: "Proxy Authentication Required",
408: "Request Timeout",
409: "Conflict",
410: "Gone",
411: "Length Required",
412: "Precondition Failed",
413: "Request Entity Too Large",
414: "Request - URI Too Long",
415: "Unsupported Media Type",
416: "Requested Range Not Satisfiable",
417: "Expectation Failed",
500: "Internal Server Error",
501: "Not Implemented",
502: "Bad Gateway",
503: "Service Unavailable",
504: "Gateway Timeout",
505: "HTTP Version Not Supported"
};