2016-06-28 09:19:01 +12:00
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/* global chrome, safari */
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import fetch from './fetch'
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import isNode from 'detect-node'
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const safariQueue = {}
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// messaging with the safari extension global page
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function safariHandler (ev) {
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let type = ev.message.type
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let url = ev.message.input
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let data = ev.message.output // arraybuffer
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if (!safariQueue[url]) {
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// console.error("Unable to get callback for " + url, JSON.stringify(safariQueue))
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return
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}
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let cb = safariQueue[url].cb
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let responseType = safariQueue[url].responseType
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console.log(url, cb, responseType, data)
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delete safariQueue[url]
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if (responseType === 'blob') {
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let blob = new Blob([data], {type: type})
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cb(blob, type)
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} else {
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if (!responseType) {
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let blob = new Blob([data], {type: type})
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let fr = new FileReader()
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fr.onloadend = function () {
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cb(fr.result, type)
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}
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fr.readAsText(blob)
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} else {
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cb(data, type)
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}
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}
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}
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if (typeof safari !== 'undefined') {
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safari.self.addEventListener('message', safariHandler, false)
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}
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2016-08-23 19:19:01 +12:00
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function fetchBackground (url, responseType) {
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return new Promise((resolve, reject) => {
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if (typeof chrome !== 'undefined' && chrome.runtime.sendMessage) {
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chrome.runtime.sendMessage(url, function (objurl) {
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resolve(fetch(objurl, responseType))
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URL.revokeObjectURL(objurl)
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})
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} else if (typeof safari !== 'undefined') {
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safariQueue[url] = {cb: resolve, responseType: responseType}
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safari.self.tab.dispatchMessage('remote', url)
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} else {
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resolve(null)
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}
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})
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2016-06-28 09:19:01 +12:00
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}
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2016-08-23 19:19:01 +12:00
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export default function fetchRemote (url, responseType) {
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2016-06-28 09:19:01 +12:00
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if (url.indexOf('//') === 0) {
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url = 'http:' + url
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}
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2016-06-28 19:39:31 +12:00
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if (!isNode && document.location.protocol === 'https:' && url.indexOf('http:') === 0) {
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2016-08-23 19:19:01 +12:00
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return fetchBackground(url, responseType)
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2016-06-28 09:19:01 +12:00
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}
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2016-08-23 19:19:01 +12:00
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return fetch(url, responseType).then((data) => {
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2016-06-28 09:19:01 +12:00
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if (!data) {
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2016-08-23 19:19:01 +12:00
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return fetchBackground(url, responseType)
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2016-06-28 09:19:01 +12:00
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} else {
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2016-08-23 19:19:01 +12:00
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return Promise.resolve(data)
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2016-06-28 09:19:01 +12:00
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}
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2016-08-23 19:19:01 +12:00
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})
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2016-06-28 09:19:01 +12:00
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}
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