blackbird-server
Version:
HTTP for JavaScript
434 lines (367 loc) • 13.7 kB
JavaScript
/* eslint-disable */
(function (self) {
"use strict";
if (self.fetch) {
return;
}
const support = {
searchParams: "URLSearchParams" in self,
iterable: "Symbol" in self && "iterator" in Symbol,
blob: "FileReader" in self && "Blob" in self && (function () {
try {
new Blob();
return true;
} catch (e) {
return false;
}
})(),
formData: "FormData" in self,
arrayBuffer: "ArrayBuffer" in self
};
function normalizeName(name) {
if (typeof name !== "string") {
name = String(name);
}
if (/[^a-z0-9\-#$%&'*+.\^_`|~]/i.test(name)) {
throw new TypeError("Invalid character in header field name");
}
return name.toLowerCase();
}
function normalizeValue(value) {
if (typeof value !== "string") {
value = String(value);
}
return value;
}
// Build a destructive iterator for the value list
function iteratorFor(items) {
const iterator = {
next() {
const value = items.shift();
return {done: value === undefined, value};
}
};
if (support.iterable) {
iterator[Symbol.iterator] = function () {
return iterator;
};
}
return iterator;
}
function Headers(headers) {
this.map = {};
if (headers instanceof Headers) {
headers.forEach(function (value, name) {
this.append(name, value);
}, this);
} else if (headers) {
Object.getOwnPropertyNames(headers).forEach(function (name) {
this.append(name, headers[name]);
}, this);
}
}
Headers.prototype.append = function (name, value) {
name = normalizeName(name);
value = normalizeValue(value);
let list = this.map[name];
if (!list) {
list = [];
this.map[name] = list;
}
list.push(value);
};
Headers.prototype["delete"] = function (name) {
delete this.map[normalizeName(name)];
};
Headers.prototype.get = function (name) {
const values = this.map[normalizeName(name)];
return values ? values[0] : null;
};
Headers.prototype.getAll = function (name) {
return this.map[normalizeName(name)] || [];
};
Headers.prototype.has = function (name) {
return this.map.hasOwnProperty(normalizeName(name));
};
Headers.prototype.set = function (name, value) {
this.map[normalizeName(name)] = [normalizeValue(value)];
};
Headers.prototype.forEach = function (callback, thisArg) {
Object.getOwnPropertyNames(this.map).forEach(function (name) {
this.map[name].forEach(function (value) {
callback.call(thisArg, value, name, this);
}, this);
}, this);
};
Headers.prototype.keys = function () {
const items = [];
this.forEach(function (value, name) { items.push(name); });
return iteratorFor(items);
};
Headers.prototype.values = function () {
const items = [];
this.forEach(function (value) { items.push(value); });
return iteratorFor(items);
};
Headers.prototype.entries = function () {
const items = [];
this.forEach(function (value, name) { items.push([name, value]); });
return iteratorFor(items);
};
if (support.iterable) {
Headers.prototype[Symbol.iterator] = Headers.prototype.entries;
}
function consumed(body) {
if (body.bodyUsed) {
return Promise.reject(new TypeError("Already read"));
}
body.bodyUsed = true;
}
function fileReaderReady(reader) {
return new Promise(function (resolve, reject) {
reader.onload = function () {
resolve(reader.result);
};
reader.onerror = function () {
reject(reader.error);
};
});
}
function readBlobAsArrayBuffer(blob) {
const reader = new FileReader();
reader.readAsArrayBuffer(blob);
return fileReaderReady(reader);
}
function readBlobAsText(blob) {
const reader = new FileReader();
reader.readAsText(blob);
return fileReaderReady(reader);
}
function Body() {
this.bodyUsed = false;
this._initBody = function (body) {
this._bodyInit = body;
if (typeof body === "string") {
this._bodyText = body;
} else if (support.blob && Blob.prototype.isPrototypeOf(body)) {
this._bodyBlob = body;
} else if (support.formData && FormData.prototype.isPrototypeOf(body)) {
this._bodyFormData = body;
} else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
this._bodyText = body.toString();
} else if (!body) {
this._bodyText = "";
} else if (support.arrayBuffer && ArrayBuffer.prototype.isPrototypeOf(body)) {
// Only support ArrayBuffers for POST method.
// Receiving ArrayBuffers happens via Blobs, instead.
} else {
throw new Error("unsupported BodyInit type");
}
if (!this.headers.get("content-type")) {
if (typeof body === "string") {
this.headers.set("content-type", "text/plain;charset=UTF-8");
} else if (this._bodyBlob && this._bodyBlob.type) {
this.headers.set("content-type", this._bodyBlob.type);
} else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
this.headers.set("content-type", "application/x-www-form-urlencoded;charset=UTF-8");
}
}
};
if (support.blob) {
this.blob = function () {
const rejected = consumed(this);
if (rejected) {
return rejected;
}
if (this._bodyBlob) {
return Promise.resolve(this._bodyBlob);
} else if (this._bodyFormData) {
throw new Error("could not read FormData body as blob");
} else {
return Promise.resolve(new Blob([this._bodyText]));
}
};
this.arrayBuffer = function () {
return this.blob().then(readBlobAsArrayBuffer);
};
this.text = function () {
const rejected = consumed(this);
if (rejected) {
return rejected;
}
if (this._bodyBlob) {
return readBlobAsText(this._bodyBlob);
} else if (this._bodyFormData) {
throw new Error("could not read FormData body as text");
} else {
return Promise.resolve(this._bodyText);
}
};
} else {
this.text = function () {
const rejected = consumed(this);
return rejected ? rejected : Promise.resolve(this._bodyText);
};
}
if (support.formData) {
this.formData = function () {
return this.text().then(decode);
};
}
this.json = function () {
return this.text().then(JSON.parse);
};
return this;
}
// HTTP methods whose capitalization should be normalized
const methods = ["DELETE", "GET", "HEAD", "OPTIONS", "POST", "PUT"];
function normalizeMethod(method) {
const upcased = method.toUpperCase();
return (methods.indexOf(upcased) > -1) ? upcased : method;
}
function Request(input, options) {
options = options || {};
let body = options.body;
if (Request.prototype.isPrototypeOf(input)) {
if (input.bodyUsed) {
throw new TypeError("Already read");
}
this.url = input.url;
this.credentials = input.credentials;
if (!options.headers) {
this.headers = new Headers(input.headers);
}
this.method = input.method;
this.mode = input.mode;
if (!body) {
body = input._bodyInit;
input.bodyUsed = true;
}
} else {
this.url = input;
}
this.credentials = options.credentials || this.credentials || "omit";
if (options.headers || !this.headers) {
this.headers = new Headers(options.headers);
}
this.method = normalizeMethod(options.method || this.method || "GET");
this.mode = options.mode || this.mode || null;
this.referrer = null;
if ((this.method === "GET" || this.method === "HEAD") && body) {
throw new TypeError("Body not allowed for GET or HEAD requests");
}
this._initBody(body);
}
Request.prototype.clone = function () {
return new Request(this);
};
function decode(body) {
const form = new FormData();
body.trim().split("&").forEach(function (bytes) {
if (bytes) {
const split = bytes.split("=");
const name = split.shift().replace(/\+/g, " ");
const value = split.join("=").replace(/\+/g, " ");
form.append(decodeURIComponent(name), decodeURIComponent(value));
}
});
return form;
}
function headers(xhr) {
const head = new Headers();
const pairs = (xhr.getAllResponseHeaders() || "").trim().split("\n");
pairs.forEach(function (header) {
const split = header.trim().split(":");
const key = split.shift().trim();
const value = split.join(":").trim();
head.append(key, value);
});
return head;
}
Body.call(Request.prototype);
function Response(bodyInit, options) {
if (!options) {
options = {};
}
this.type = "default";
this.status = options.status;
this.ok = this.status >= 200 && this.status < 300;
this.statusText = options.statusText;
this.headers = options.headers instanceof Headers ? options.headers : new Headers(options.headers);
this.url = options.url || "";
this._initBody(bodyInit);
}
Body.call(Response.prototype);
Response.prototype.clone = function () {
return new Response(this._bodyInit, {
status: this.status,
statusText: this.statusText,
headers: new Headers(this.headers),
url: this.url
});
};
Response.error = function () {
const response = new Response(null, {status: 0, statusText: ""});
response.type = "error";
return response;
};
const redirectStatuses = [301, 302, 303, 307, 308];
Response.redirect = function (url, status) {
if (redirectStatuses.indexOf(status) === -1) {
throw new RangeError("Invalid status code");
}
return new Response(null, {status, headers: {location: url}});
};
self.Headers = Headers;
self.Request = Request;
self.Response = Response;
self.fetch = function (input, init) {
return new Promise(function (resolve, reject) {
let request;
if (Request.prototype.isPrototypeOf(input) && !init) {
request = input;
} else {
request = new Request(input, init);
}
const xhr = new XMLHttpRequest();
function responseURL() {
if ("responseURL" in xhr) {
return xhr.responseURL;
}
// Avoid security warnings on getResponseHeader when not allowed by CORS
if (/^X-Request-URL:/m.test(xhr.getAllResponseHeaders())) {
return xhr.getResponseHeader("X-Request-URL");
}
return;
}
xhr.onload = function () {
const options = {
status: xhr.status,
statusText: xhr.statusText,
headers: headers(xhr),
url: responseURL()
};
const body = "response" in xhr ? xhr.response : xhr.responseText;
resolve(new Response(body, options));
};
xhr.onerror = function () {
reject(new TypeError("Network request failed"));
};
xhr.ontimeout = function () {
reject(new TypeError("Network request failed"));
};
xhr.open(request.method, request.url, true);
if (request.credentials === "include") {
xhr.withCredentials = true;
}
if ("responseType" in xhr && support.blob) {
xhr.responseType = "blob";
}
request.headers.forEach(function (value, name) {
xhr.setRequestHeader(name, value);
});
xhr.send(typeof request._bodyInit === "undefined" ? null : request._bodyInit);
});
};
self.fetch.polyfill = true;
})(typeof self !== "undefined" ? self : this);