530 lines
15 KiB
JavaScript
530 lines
15 KiB
JavaScript
/**
|
|
* Copyright (c) 2015-present, Facebook, Inc.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*
|
|
* @format
|
|
*/
|
|
|
|
// Fork of https://github.com/github/fetch/blob/master/fetch.js that does not
|
|
// use reponseType: 'blob' by default. RN already has specific native implementations
|
|
// for different response types so there is no need to add the extra blob overhead.
|
|
|
|
// Copyright (c) 2014-2016 GitHub, Inc.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining
|
|
// a copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to
|
|
// permit persons to whom the Software is furnished to do so, subject to
|
|
// the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be
|
|
// included in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
(function(self) {
|
|
'use strict';
|
|
|
|
if (self.fetch) {
|
|
return;
|
|
}
|
|
|
|
var 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,
|
|
};
|
|
|
|
if (support.arrayBuffer) {
|
|
var viewClasses = [
|
|
'[object Int8Array]',
|
|
'[object Uint8Array]',
|
|
'[object Uint8ClampedArray]',
|
|
'[object Int16Array]',
|
|
'[object Uint16Array]',
|
|
'[object Int32Array]',
|
|
'[object Uint32Array]',
|
|
'[object Float32Array]',
|
|
'[object Float64Array]',
|
|
];
|
|
|
|
var isDataView = function(obj) {
|
|
return obj && DataView.prototype.isPrototypeOf(obj);
|
|
};
|
|
|
|
var isArrayBufferView =
|
|
ArrayBuffer.isView ||
|
|
function(obj) {
|
|
return (
|
|
obj && viewClasses.indexOf(Object.prototype.toString.call(obj)) > -1
|
|
);
|
|
};
|
|
}
|
|
|
|
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) {
|
|
var iterator = {
|
|
next: function() {
|
|
var value = items.shift();
|
|
return {done: value === undefined, value: 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 (Array.isArray(headers)) {
|
|
headers.forEach(function(header) {
|
|
this.append(header[0], header[1]);
|
|
}, 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);
|
|
var oldValue = this.map[name];
|
|
this.map[name] = oldValue ? oldValue + ',' + value : value;
|
|
};
|
|
|
|
Headers.prototype['delete'] = function(name) {
|
|
delete this.map[normalizeName(name)];
|
|
};
|
|
|
|
Headers.prototype.get = function(name) {
|
|
name = normalizeName(name);
|
|
return this.has(name) ? this.map[name] : null;
|
|
};
|
|
|
|
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) {
|
|
for (var name in this.map) {
|
|
if (this.map.hasOwnProperty(name)) {
|
|
callback.call(thisArg, this.map[name], name, this);
|
|
}
|
|
}
|
|
};
|
|
|
|
Headers.prototype.keys = function() {
|
|
var items = [];
|
|
this.forEach(function(value, name) {
|
|
items.push(name);
|
|
});
|
|
return iteratorFor(items);
|
|
};
|
|
|
|
Headers.prototype.values = function() {
|
|
var items = [];
|
|
this.forEach(function(value) {
|
|
items.push(value);
|
|
});
|
|
return iteratorFor(items);
|
|
};
|
|
|
|
Headers.prototype.entries = function() {
|
|
var 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) {
|
|
var reader = new FileReader();
|
|
var promise = fileReaderReady(reader);
|
|
reader.readAsArrayBuffer(blob);
|
|
return promise;
|
|
}
|
|
|
|
function readBlobAsText(blob) {
|
|
var reader = new FileReader();
|
|
var promise = fileReaderReady(reader);
|
|
reader.readAsText(blob);
|
|
return promise;
|
|
}
|
|
|
|
function readArrayBufferAsText(buf) {
|
|
var view = new Uint8Array(buf);
|
|
var chars = new Array(view.length);
|
|
|
|
for (var i = 0; i < view.length; i++) {
|
|
chars[i] = String.fromCharCode(view[i]);
|
|
}
|
|
return chars.join('');
|
|
}
|
|
|
|
function bufferClone(buf) {
|
|
if (buf.slice) {
|
|
return buf.slice(0);
|
|
} else {
|
|
var view = new Uint8Array(buf.byteLength);
|
|
view.set(new Uint8Array(buf));
|
|
return view.buffer;
|
|
}
|
|
}
|
|
|
|
function Body() {
|
|
this.bodyUsed = false;
|
|
|
|
this._initBody = function(body) {
|
|
this._bodyInit = body;
|
|
if (!body) {
|
|
this._bodyText = '';
|
|
} else 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 (support.arrayBuffer && support.blob && isDataView(body)) {
|
|
this._bodyArrayBuffer = bufferClone(body.buffer);
|
|
// IE 10-11 can't handle a DataView body.
|
|
this._bodyInit = new Blob([this._bodyArrayBuffer]);
|
|
} else if (
|
|
support.arrayBuffer &&
|
|
(ArrayBuffer.prototype.isPrototypeOf(body) || isArrayBufferView(body))
|
|
) {
|
|
this._bodyArrayBuffer = bufferClone(body);
|
|
} 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() {
|
|
var rejected = consumed(this);
|
|
if (rejected) {
|
|
return rejected;
|
|
}
|
|
|
|
if (this._bodyBlob) {
|
|
return Promise.resolve(this._bodyBlob);
|
|
} else if (this._bodyArrayBuffer) {
|
|
return Promise.resolve(new Blob([this._bodyArrayBuffer]));
|
|
} 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() {
|
|
if (this._bodyArrayBuffer) {
|
|
return consumed(this) || Promise.resolve(this._bodyArrayBuffer);
|
|
} else {
|
|
return this.blob().then(readBlobAsArrayBuffer);
|
|
}
|
|
};
|
|
}
|
|
|
|
this.text = function() {
|
|
var rejected = consumed(this);
|
|
if (rejected) {
|
|
return rejected;
|
|
}
|
|
|
|
if (this._bodyBlob) {
|
|
return readBlobAsText(this._bodyBlob);
|
|
} else if (this._bodyArrayBuffer) {
|
|
return Promise.resolve(readArrayBufferAsText(this._bodyArrayBuffer));
|
|
} else if (this._bodyFormData) {
|
|
throw new Error('could not read FormData body as text');
|
|
} else {
|
|
return 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
|
|
var methods = ['DELETE', 'GET', 'HEAD', 'OPTIONS', 'POST', 'PUT'];
|
|
|
|
function normalizeMethod(method) {
|
|
var upcased = method.toUpperCase();
|
|
return methods.indexOf(upcased) > -1 ? upcased : method;
|
|
}
|
|
|
|
function Request(input, options) {
|
|
options = options || {};
|
|
var body = options.body;
|
|
|
|
if (input instanceof Request) {
|
|
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 && input._bodyInit != null) {
|
|
body = input._bodyInit;
|
|
input.bodyUsed = true;
|
|
}
|
|
} else {
|
|
this.url = String(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, {body: this._bodyInit});
|
|
};
|
|
|
|
function decode(body) {
|
|
var form = new FormData();
|
|
body
|
|
.trim()
|
|
.split('&')
|
|
.forEach(function(bytes) {
|
|
if (bytes) {
|
|
var split = bytes.split('=');
|
|
var name = split.shift().replace(/\+/g, ' ');
|
|
var value = split.join('=').replace(/\+/g, ' ');
|
|
form.append(decodeURIComponent(name), decodeURIComponent(value));
|
|
}
|
|
});
|
|
return form;
|
|
}
|
|
|
|
function parseHeaders(rawHeaders) {
|
|
var headers = new Headers();
|
|
// Replace instances of \r\n and \n followed by at least one space or horizontal tab with a space
|
|
// https://tools.ietf.org/html/rfc7230#section-3.2
|
|
var preProcessedHeaders = rawHeaders.replace(/\r?\n[\t ]+/g, ' ');
|
|
preProcessedHeaders.split(/\r?\n/).forEach(function(line) {
|
|
var parts = line.split(':');
|
|
var key = parts.shift().trim();
|
|
if (key) {
|
|
var value = parts.join(':').trim();
|
|
headers.append(key, value);
|
|
}
|
|
});
|
|
return headers;
|
|
}
|
|
|
|
Body.call(Request.prototype);
|
|
|
|
function Response(bodyInit, options) {
|
|
if (!options) {
|
|
options = {};
|
|
}
|
|
|
|
this.type = 'default';
|
|
this.status = options.status === undefined ? 200 : options.status;
|
|
this.ok = this.status >= 200 && this.status < 300;
|
|
this.statusText = 'statusText' in options ? options.statusText : 'OK';
|
|
this.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() {
|
|
var response = new Response(null, {status: 0, statusText: ''});
|
|
response.type = 'error';
|
|
return response;
|
|
};
|
|
|
|
var 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: status, headers: {location: url}});
|
|
};
|
|
|
|
self.Headers = Headers;
|
|
self.Request = Request;
|
|
self.Response = Response;
|
|
|
|
self.fetch = function(input, init) {
|
|
return new Promise(function(resolve, reject) {
|
|
var request = new Request(input, init);
|
|
var xhr = new XMLHttpRequest();
|
|
|
|
xhr.onload = function() {
|
|
var options = {
|
|
status: xhr.status,
|
|
statusText: xhr.statusText,
|
|
headers: parseHeaders(xhr.getAllResponseHeaders() || ''),
|
|
};
|
|
options.url =
|
|
'responseURL' in xhr
|
|
? xhr.responseURL
|
|
: options.headers.get('X-Request-URL');
|
|
var 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;
|
|
} else if (request.credentials === 'omit') {
|
|
xhr.withCredentials = false;
|
|
}
|
|
|
|
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);
|