117 lines
3.9 KiB
JavaScript
117 lines
3.9 KiB
JavaScript
/**
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* Copyright JS Foundation and other contributors, http://js.foundation
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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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const crypto = require('crypto')
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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 Mustache = require("mustache");
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var mime = require("mime");
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var apiUtils = require("../util");
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var theme = require("./theme");
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var runtimeAPI;
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let settings;
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var editorClientDir = path.dirname(require.resolve("@node-red/editor-client"));
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var defaultNodeIcon = path.join(editorClientDir,"public","red","images","icons","arrow-in.svg");
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var editorTemplatePath = path.join(editorClientDir,"templates","index.mst");
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var editorTemplate;
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let cacheBuster
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module.exports = {
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init: function(_settings, _runtimeAPI) {
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settings = _settings;
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runtimeAPI = _runtimeAPI;
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editorTemplate = fs.readFileSync(editorTemplatePath,"utf8");
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Mustache.parse(editorTemplate);
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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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var icon = req.params.icon;
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var scope = req.params.scope;
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var module = scope ? scope + '/' + req.params.module : req.params.module;
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var opts = {
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user: req.user,
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module: module,
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icon: icon
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}
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runtimeAPI.nodes.getIcon(opts).then(function(data) {
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if (data) {
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var contentType = mime.getType(icon);
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res.set("Content-Type", contentType);
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res.send(data);
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} else {
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res.sendFile(defaultNodeIcon);
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}
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}).catch(function(err) {
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console.log(err.stack);
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apiUtils.rejectHandler(req,res,err);
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})
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},
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moduleResource: function(req, res) {
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let resourcePath = req.params[1];
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let opts = {
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user: req.user,
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module: req.params[0],
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path: resourcePath
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}
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runtimeAPI.nodes.getModuleResource(opts).then(function(data) {
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if (data) {
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var contentType = mime.getType(resourcePath);
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res.set("Content-Type", contentType);
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res.send(data);
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} else {
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res.status(404).end()
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}
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}).catch(function(err) {
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console.log(err.stack);
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apiUtils.rejectHandler(req,res,err);
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})
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},
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editor: async function(req,res) {
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if (!cacheBuster) {
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// settings.instanceId is set asynchronously to the editor-api
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// being initiaised. So we defer calculating the cacheBuster hash
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// until the first load of the editor
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cacheBuster = crypto.createHash('sha1').update(`${settings.version || 'version'}-${settings.instanceId || 'instanceId'}`).digest("hex").substring(0,12)
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}
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let sessionMessages;
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if (req.session && req.session.messages) {
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sessionMessages = JSON.stringify(req.session.messages);
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delete req.session.messages
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}
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res.send(Mustache.render(editorTemplate,{
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sessionMessages,
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cacheBuster,
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...await theme.context()
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}));
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},
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editorResources: express.static(path.join(editorClientDir,'public'))
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};
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