107 lines
2.9 KiB
JavaScript
107 lines
2.9 KiB
JavaScript
"use strict";
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var connectUtils = require("./connect-utils");
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var config = require("./config");
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var lrSnippet = require("resp-modifier");
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var path = require("path");
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var _ = require("../lodash.custom");
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var utils = require("./utils");
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var fs = require("fs");
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/**
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* Utils for snippet injection
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*/
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var snippetUtils = {
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/**
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* @param {String} url
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* @param {Array} excludeList
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* @returns {boolean}
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*/
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isExcluded: function (url, excludeList) {
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var extension = path.extname(url);
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if (extension) {
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if (~url.indexOf("?")) {
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return true;
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}
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extension = extension.slice(1);
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return _.includes(excludeList, extension);
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}
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return false;
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},
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/**
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* @param {String} snippet
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* @param {Object} options
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* @returns {{match: RegExp, fn: Function}}
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*/
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getRegex: function (snippet, options) {
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var fn = options.getIn(["rule", "fn"]);
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return {
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match: options.getIn(["rule", "match"]),
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fn: function (req, res, match) {
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return fn.apply(null, [snippet, match]);
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},
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once: true,
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id: "bs-snippet"
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};
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},
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getSnippetMiddleware: function (snippet, options, rewriteRules) {
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return lrSnippet.create(snippetUtils.getRules(snippet, options, rewriteRules));
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},
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getRules: function (snippet, options, rewriteRules) {
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var rules = [snippetUtils.getRegex(snippet, options)];
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if (rewriteRules) {
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rules = rules.concat(rewriteRules);
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}
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return {
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rules: rules,
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blacklist: utils.arrayify(options.get("blacklist")),
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whitelist: utils.arrayify(options.get("whitelist"))
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};
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},
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/**
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* @param {Object} req
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* @param {Array} [excludeList]
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* @returns {Object}
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*/
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isOldIe: function (excludeList) {
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return function (req, res, next) {
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var ua = req.headers["user-agent"];
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var match = /MSIE (\d)\.\d/.exec(ua);
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if (match) {
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if (parseInt(match[1], 10) < 9) {
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if (!snippetUtils.isExcluded(req.url, excludeList)) {
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req.headers["accept"] = "text/html";
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}
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}
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}
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next();
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}
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},
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/**
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* @param {Number} port
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* @param {BrowserSync.options} options
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* @returns {String}
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*/
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getClientJs: function (port, options) {
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var socket = snippetUtils.getSocketScript();
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var noConflictJs = "window.___browserSync___oldSocketIo = window.io;";
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return noConflictJs + socket + ";" + connectUtils.socketConnector(options);
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},
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/**
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* @returns {String}
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*/
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getSocketScript: function () {
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return fs.readFileSync(path.join(__dirname, config.socketIoScript), "utf-8");
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}
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};
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module.exports.utils = snippetUtils;
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