forked from denoland/deno
/
request.ts
151 lines (130 loc) · 3.53 KB
/
request.ts
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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
import * as headers from "./headers";
import * as body from "./body";
import * as domTypes from "./dom_types";
const { Headers } = headers;
function byteUpperCase(s: string): string {
return String(s).replace(/[a-z]/g, function byteUpperCaseReplace(c): string {
return c.toUpperCase();
});
}
function normalizeMethod(m: string): string {
const u = byteUpperCase(m);
if (
u === "DELETE" ||
u === "GET" ||
u === "HEAD" ||
u === "OPTIONS" ||
u === "POST" ||
u === "PUT"
) {
return u;
}
return m;
}
/**
* An HTTP request
* @param {Blob|String} [body]
* @param {Object} [init]
*/
export class Request extends body.Body implements domTypes.Request {
public method: string;
public url: string;
public credentials?: "omit" | "same-origin" | "include";
public headers: domTypes.Headers;
constructor(input: domTypes.RequestInfo, init?: domTypes.RequestInit) {
if (arguments.length < 1) {
throw TypeError("Not enough arguments");
}
if (!init) {
init = {};
}
let b: body.BodySource;
// prefer body from init
if (init.body) {
b = init.body;
} else if (input instanceof Request && input._bodySource) {
if (input.bodyUsed) {
throw TypeError(body.BodyUsedError);
}
b = input._bodySource;
} else if (typeof input === "object" && "body" in input && input.body) {
if (input.bodyUsed) {
throw TypeError(body.BodyUsedError);
}
b = input.body;
} else {
b = "";
}
let headers: domTypes.Headers;
// prefer headers from init
if (init.headers) {
headers = new Headers(init.headers);
} else if (input instanceof Request) {
headers = input.headers;
} else {
headers = new Headers();
}
const contentType = headers.get("content-type") || "";
super(b, contentType);
this.headers = headers;
// readonly attribute ByteString method;
/**
* The HTTP request method
* @readonly
* @default GET
* @type {string}
*/
this.method = "GET";
// readonly attribute USVString url;
/**
* The request URL
* @readonly
* @type {string}
*/
this.url = "";
// readonly attribute RequestCredentials credentials;
this.credentials = "omit";
if (input instanceof Request) {
if (input.bodyUsed) {
throw TypeError(body.BodyUsedError);
}
this.method = input.method;
this.url = input.url;
this.headers = new Headers(input.headers);
this.credentials = input.credentials;
this._stream = input._stream;
} else if (typeof input === "string") {
this.url = input;
}
if (init && "method" in init) {
this.method = normalizeMethod(init.method as string);
}
if (
init &&
"credentials" in init &&
init.credentials &&
["omit", "same-origin", "include"].indexOf(init.credentials) !== -1
) {
this.credentials = init.credentials;
}
}
public clone(): domTypes.Request {
if (this.bodyUsed) {
throw TypeError(body.BodyUsedError);
}
const iterators = this.headers.entries();
const headersList: Array<[string, string]> = [];
for (const header of iterators) {
headersList.push(header);
}
let body2 = this._bodySource;
const cloned = new Request(this.url, {
body: body2,
method: this.method,
headers: new Headers(headersList),
credentials: this.credentials
});
return cloned;
}
}