mirror of https://github.com/node-red/node-red.git
79 lines
2.7 KiB
JavaScript
79 lines
2.7 KiB
JavaScript
/**
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* Copyright 2013, 2015 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var express = require('express');
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var fs = require("fs");
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var path = require("path");
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var theme = require("./theme");
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var Mustache = require("mustache");
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var icon_paths = [path.resolve(__dirname + '/../../public/icons')];
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var iconCache = {};
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//TODO: create a default icon
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var defaultIcon = path.resolve(__dirname + '/../../public/icons/arrow-in.png');
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var templateDir = path.resolve(__dirname+"/../../editor/templates");
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var editorTemplate;
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function nodeIconDir(dir) {
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icon_paths.push(path.resolve(dir));
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}
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module.exports = {
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init: function(runtime) {
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editorTemplate = fs.readFileSync(path.join(templateDir,"index.mst"),"utf8");
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Mustache.parse(editorTemplate);
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// TODO: this allows init to be called multiple times without
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// registering multiple instances of the listener.
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// It isn't.... ideal.
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runtime.events.removeListener("node-icon-dir",nodeIconDir);
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runtime.events.on("node-icon-dir",nodeIconDir);
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},
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ensureSlash: function(req,res,next) {
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var parts = req.originalUrl.split("?");
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if (parts[0].slice(-1) != "/") {
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parts[0] += "/";
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var redirect = parts.join("?");
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res.redirect(301,redirect);
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} else {
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next();
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}
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},
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icon: function(req,res) {
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if (iconCache[req.params.icon]) {
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res.sendFile(iconCache[req.params.icon]); // if not found, express prints this to the console and serves 404
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} else {
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for (var p=0;p<icon_paths.length;p++) {
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var iconPath = path.join(icon_paths[p],req.params.icon);
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try {
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fs.statSync(iconPath);
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res.sendFile(iconPath);
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iconCache[req.params.icon] = iconPath;
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return;
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} catch(err) {
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// iconPath doesn't exist
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}
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}
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res.sendFile(defaultIcon);
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}
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},
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editor: function(req,res) {
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res.send(Mustache.render(editorTemplate,theme.context()));
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},
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editorResources: express.static(__dirname + '/../../public')
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};
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