diff options
Diffstat (limited to 'lib/fetch.js')
| -rw-r--r-- | lib/fetch.js | 418 |
1 files changed, 0 insertions, 418 deletions
diff --git a/lib/fetch.js b/lib/fetch.js deleted file mode 100644 index 3791e48..0000000 --- a/lib/fetch.js +++ /dev/null @@ -1,418 +0,0 @@ -(function(self) { - 'use strict'; - - // if __disableNativeFetch is set to true, the it will always polyfill fetch - // with Ajax. - if (!self.__disableNativeFetch && self.fetch) { - return - } - - 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 - } - - 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) - var 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) { - var 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) - } - - 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() - reader.readAsArrayBuffer(blob) - return fileReaderReady(reader) - } - - function readBlobAsText(blob, options) { - var reader = new FileReader() - var contentType = options.headers.map['content-type'] ? options.headers.map['content-type'].toString() : '' - var regex = /charset\=[0-9a-zA-Z\-\_]*;?/ - var _charset = blob.type.match(regex) || contentType.match(regex) - var args = [blob] - - if(_charset) { - args.push(_charset[0].replace(/^charset\=/, '').replace(/;$/, '')) - } - - reader.readAsText.apply(reader, args) - return fileReaderReady(reader) - } - - var support = { - 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 Body() { - this.bodyUsed = false - - - this._initBody = function(body, options) { - this._bodyInit = body - if (typeof body === 'string') { - this._bodyText = body - } else if (support.blob && Blob.prototype.isPrototypeOf(body)) { - this._bodyBlob = body - this._options = options - } else if (support.formData && FormData.prototype.isPrototypeOf(body)) { - this._bodyFormData = body - } 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 (support.blob) { - this.blob = function() { - var 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() { - var rejected = consumed(this) - if (rejected) { - return rejected - } - - if (this._bodyBlob) { - return readBlobAsText(this._bodyBlob, this._options) - } else if (this._bodyFormData) { - throw new Error('could not read FormData body as text') - } else { - return Promise.resolve(this._bodyText) - } - } - } else { - this.text = function() { - var 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 - 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 (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, options) - } - - Request.prototype.clone = function() { - return new Request(this) - } - - 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 headers(xhr) { - var head = new Headers() - var pairs = xhr.getAllResponseHeaders().trim().split('\n') - pairs.forEach(function(header) { - var split = header.trim().split(':') - var key = split.shift().trim() - var value = split.join(':').trim() - head.append(key, value) - }) - return head - } - - Body.call(Request.prototype) - - function Response(bodyInit, options) { - if (!options) { - options = {} - } - - this._initBody(bodyInit, 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 || '' - } - - 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 - if (Request.prototype.isPrototypeOf(input) && !init) { - request = input - } else { - request = new Request(input, init) - } - - var 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; - } - - var __onLoadHandled = false; - - function onload() { - if (xhr.readyState !== 4) { - return - } - var status = (xhr.status === 1223) ? 204 : xhr.status - if (status < 100 || status > 599) { - if (__onLoadHandled) { return; } else { __onLoadHandled = true; } - reject(new TypeError('Network request failed')) - return - } - var options = { - status: status, - statusText: xhr.statusText, - headers: headers(xhr), - url: responseURL() - } - var body = 'response' in xhr ? xhr.response : xhr.responseText; - - if (__onLoadHandled) { return; } else { __onLoadHandled = true; } - resolve(new Response(body, options)) - } - xhr.onreadystatechange = onload; - xhr.onload = onload; - xhr.onerror = function() { - if (__onLoadHandled) { return; } else { __onLoadHandled = true; } - reject(new TypeError('Network request failed')) - } - - xhr.open(request.method, request.url, true) - - // `withCredentials` should be setted after calling `.open` in IE10 - // http://stackoverflow.com/a/19667959/1219343 - try { - if (request.credentials === 'include') { - if ('withCredentials' in xhr) { - xhr.withCredentials = true; - } else { - console && console.warn && console.warn('withCredentials is not supported, you can ignore this warning'); - } - } - } catch (e) { - console && console.warn && console.warn('set withCredentials error:' + e); - } - - 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 - - // Support CommonJS - if (typeof module !== 'undefined' && module.exports) { - module.exports = self.fetch; - } -})(typeof self !== 'undefined' ? self : this); |