diff options
Diffstat (limited to 'node_modules/axios/lib/adapters/xhr.js')
-rw-r--r-- | node_modules/axios/lib/adapters/xhr.js | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/node_modules/axios/lib/adapters/xhr.js b/node_modules/axios/lib/adapters/xhr.js new file mode 100644 index 0000000..e58625a --- /dev/null +++ b/node_modules/axios/lib/adapters/xhr.js @@ -0,0 +1,212 @@ +'use strict'; + +var utils = require('./../utils'); +var settle = require('./../core/settle'); +var cookies = require('./../helpers/cookies'); +var buildURL = require('./../helpers/buildURL'); +var buildFullPath = require('../core/buildFullPath'); +var parseHeaders = require('./../helpers/parseHeaders'); +var isURLSameOrigin = require('./../helpers/isURLSameOrigin'); +var createError = require('../core/createError'); +var transitionalDefaults = require('../defaults/transitional'); +var Cancel = require('../cancel/Cancel'); + +module.exports = function xhrAdapter(config) { + return new Promise(function dispatchXhrRequest(resolve, reject) { + var requestData = config.data; + var requestHeaders = config.headers; + var responseType = config.responseType; + var onCanceled; + function done() { + if (config.cancelToken) { + config.cancelToken.unsubscribe(onCanceled); + } + + if (config.signal) { + config.signal.removeEventListener('abort', onCanceled); + } + } + + if (utils.isFormData(requestData)) { + delete requestHeaders['Content-Type']; // Let the browser set it + } + + var request = new XMLHttpRequest(); + + // HTTP basic authentication + if (config.auth) { + var username = config.auth.username || ''; + var password = config.auth.password ? unescape(encodeURIComponent(config.auth.password)) : ''; + requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password); + } + + var fullPath = buildFullPath(config.baseURL, config.url); + request.open(config.method.toUpperCase(), buildURL(fullPath, config.params, config.paramsSerializer), true); + + // Set the request timeout in MS + request.timeout = config.timeout; + + function onloadend() { + if (!request) { + return; + } + // Prepare the response + var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null; + var responseData = !responseType || responseType === 'text' || responseType === 'json' ? + request.responseText : request.response; + var response = { + data: responseData, + status: request.status, + statusText: request.statusText, + headers: responseHeaders, + config: config, + request: request + }; + + settle(function _resolve(value) { + resolve(value); + done(); + }, function _reject(err) { + reject(err); + done(); + }, response); + + // Clean up request + request = null; + } + + if ('onloadend' in request) { + // Use onloadend if available + request.onloadend = onloadend; + } else { + // Listen for ready state to emulate onloadend + request.onreadystatechange = function handleLoad() { + if (!request || request.readyState !== 4) { + return; + } + + // The request errored out and we didn't get a response, this will be + // handled by onerror instead + // With one exception: request that using file: protocol, most browsers + // will return status as 0 even though it's a successful request + if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) { + return; + } + // readystate handler is calling before onerror or ontimeout handlers, + // so we should call onloadend on the next 'tick' + setTimeout(onloadend); + }; + } + + // Handle browser request cancellation (as opposed to a manual cancellation) + request.onabort = function handleAbort() { + if (!request) { + return; + } + + reject(createError('Request aborted', config, 'ECONNABORTED', request)); + + // Clean up request + request = null; + }; + + // Handle low level network errors + request.onerror = function handleError() { + // Real errors are hidden from us by the browser + // onerror should only fire if it's a network error + reject(createError('Network Error', config, null, request)); + + // Clean up request + request = null; + }; + + // Handle timeout + request.ontimeout = function handleTimeout() { + var timeoutErrorMessage = config.timeout ? 'timeout of ' + config.timeout + 'ms exceeded' : 'timeout exceeded'; + var transitional = config.transitional || transitionalDefaults; + if (config.timeoutErrorMessage) { + timeoutErrorMessage = config.timeoutErrorMessage; + } + reject(createError( + timeoutErrorMessage, + config, + transitional.clarifyTimeoutError ? 'ETIMEDOUT' : 'ECONNABORTED', + request)); + + // Clean up request + request = null; + }; + + // Add xsrf header + // This is only done if running in a standard browser environment. + // Specifically not if we're in a web worker, or react-native. + if (utils.isStandardBrowserEnv()) { + // Add xsrf header + var xsrfValue = (config.withCredentials || isURLSameOrigin(fullPath)) && config.xsrfCookieName ? + cookies.read(config.xsrfCookieName) : + undefined; + + if (xsrfValue) { + requestHeaders[config.xsrfHeaderName] = xsrfValue; + } + } + + // Add headers to the request + if ('setRequestHeader' in request) { + utils.forEach(requestHeaders, function setRequestHeader(val, key) { + if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') { + // Remove Content-Type if data is undefined + delete requestHeaders[key]; + } else { + // Otherwise add header to the request + request.setRequestHeader(key, val); + } + }); + } + + // Add withCredentials to request if needed + if (!utils.isUndefined(config.withCredentials)) { + request.withCredentials = !!config.withCredentials; + } + + // Add responseType to request if needed + if (responseType && responseType !== 'json') { + request.responseType = config.responseType; + } + + // Handle progress if needed + if (typeof config.onDownloadProgress === 'function') { + request.addEventListener('progress', config.onDownloadProgress); + } + + // Not all browsers support upload events + if (typeof config.onUploadProgress === 'function' && request.upload) { + request.upload.addEventListener('progress', config.onUploadProgress); + } + + if (config.cancelToken || config.signal) { + // Handle cancellation + // eslint-disable-next-line func-names + onCanceled = function(cancel) { + if (!request) { + return; + } + reject(!cancel || (cancel && cancel.type) ? new Cancel('canceled') : cancel); + request.abort(); + request = null; + }; + + config.cancelToken && config.cancelToken.subscribe(onCanceled); + if (config.signal) { + config.signal.aborted ? onCanceled() : config.signal.addEventListener('abort', onCanceled); + } + } + + if (!requestData) { + requestData = null; + } + + // Send the request + request.send(requestData); + }); +}; |