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Generate instanceId and include in hash for cache busting

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This commit is contained in:
Nick O'Leary
2024-01-08 23:27:14 +00:00
parent d7345d5bc6
commit 50627cd697
4 changed files with 20 additions and 8 deletions
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2
packages/node_modules/@node-red/editor-api/lib/editor/index.js vendored
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@@ -51,7 +51,7 @@ module.exports = {
var ui = require("./ui");
ui.init(runtimeAPI);
ui.init(settings, runtimeAPI);
const editorApp = apiUtil.createExpressApp(settings)

13
packages/node_modules/@node-red/editor-api/lib/editor/ui.js vendored
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@@ -25,15 +25,16 @@ var apiUtils = require("../util");
var theme = require("./theme");
var runtimeAPI;
let settings;
var editorClientDir = path.dirname(require.resolve("@node-red/editor-client"));
var defaultNodeIcon = path.join(editorClientDir,"public","red","images","icons","arrow-in.svg");
var editorTemplatePath = path.join(editorClientDir,"templates","index.mst");
var editorTemplate;
const version = require(path.join(editorClientDir,"package.json")).version
const cacheBuster = crypto.createHash('md5').update(version).digest("hex").substring(0,12)
let cacheBuster
module.exports = {
init: function(_runtimeAPI) {
init: function(_settings, _runtimeAPI) {
settings = _settings;
runtimeAPI = _runtimeAPI;
editorTemplate = fs.readFileSync(editorTemplatePath,"utf8");
Mustache.parse(editorTemplate);
@@ -94,6 +95,12 @@ module.exports = {
},
editor: async function(req,res) {
if (!cacheBuster) {
// settings.instanceId is set asynchronously to the editor-api
// being initiaised. So we defer calculating the cacheBuster hash
// until the first load of the editor
cacheBuster = crypto.createHash('md5').update(`${settings.version || 'version'}-${settings.instanceId || 'instanceId'}`).digest("hex").substring(0,12)
}
let sessionMessages;
if (req.session && req.session.messages) {