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88 lines
2.9 KiB
88 lines
2.9 KiB
4 years ago
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'use strict';
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/* global self */
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var url = require('url');
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var getCurrentScriptSource = require('./getCurrentScriptSource');
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function createSocketUrl(resourceQuery, currentLocation) {
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var urlParts;
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if (typeof resourceQuery === 'string' && resourceQuery !== '') {
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// If this bundle is inlined, use the resource query to get the correct url.
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// format is like `?http://0.0.0.0:8096&sockPort=8097&sockHost=localhost`
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urlParts = url.parse(resourceQuery // strip leading `?` from query string to get a valid URL
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.substr(1) // replace first `&` with `?` to have a valid query string
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.replace('&', '?'), true);
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} else {
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// Else, get the url from the <script> this file was called with.
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var scriptHost = getCurrentScriptSource();
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urlParts = url.parse(scriptHost || '/', true, true);
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} // Use parameter to allow passing location in unit tests
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if (typeof currentLocation === 'string' && currentLocation !== '') {
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currentLocation = url.parse(currentLocation);
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} else {
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currentLocation = self.location;
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}
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return getSocketUrl(urlParts, currentLocation);
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}
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/*
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* Gets socket URL based on Script Source/Location
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* (scriptSrc: URL, location: URL) -> URL
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*/
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function getSocketUrl(urlParts, loc) {
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var auth = urlParts.auth,
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query = urlParts.query;
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var hostname = urlParts.hostname,
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protocol = urlParts.protocol,
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port = urlParts.port;
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if (!port || port === '0') {
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port = loc.port;
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} // check ipv4 and ipv6 `all hostname`
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// why do we need this check?
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// hostname n/a for file protocol (example, when using electron, ionic)
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// see: https://github.com/webpack/webpack-dev-server/pull/384
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if ((hostname === '0.0.0.0' || hostname === '::') && loc.hostname && loc.protocol.indexOf('http') === 0) {
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hostname = loc.hostname;
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} // `hostname` can be empty when the script path is relative. In that case, specifying
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// a protocol would result in an invalid URL.
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// When https is used in the app, secure websockets are always necessary
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// because the browser doesn't accept non-secure websockets.
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if (hostname && hostname !== '127.0.0.1' && (loc.protocol === 'https:' || urlParts.hostname === '0.0.0.0')) {
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protocol = loc.protocol;
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} // all of these sock url params are optionally passed in through
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// resourceQuery, so we need to fall back to the default if
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// they are not provided
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var sockHost = query.sockHost || hostname;
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var sockPath = query.sockPath || '/sockjs-node';
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var sockPort = query.sockPort || port;
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if (sockPort === 'location') {
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sockPort = loc.port;
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}
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return url.format({
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protocol: protocol,
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auth: auth,
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hostname: sockHost,
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port: sockPort,
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// If sockPath is provided it'll be passed in via the resourceQuery as a
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// query param so it has to be parsed out of the querystring in order for the
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// client to open the socket to the correct location.
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pathname: sockPath
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});
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}
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module.exports = createSocketUrl;
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