Moved more classes to ts. (#6179)

src/node/hooks/express/specialpages.ts

@@ -0,0 +1,121 @@
+'use strict';
+
+const path = require('path');
+const eejs = require('../../eejs');
+const fs = require('fs');
+const fsp = fs.promises;
+const toolbar = require('../../utils/toolbar');
+const hooks = require('../../../static/js/pluginfw/hooks');
+const settings = require('../../utils/Settings');
+const util = require('util');
+const webaccess = require('./webaccess');
+
+exports.expressPreSession = async (hookName:string, {app}:any) => {
+  // This endpoint is intended to conform to:
+  // https://www.ietf.org/archive/id/draft-inadarei-api-health-check-06.html
+  app.get('/health', (req:any, res:any) => {
+    res.set('Content-Type', 'application/health+json');
+    res.json({
+      status: 'pass',
+      releaseId: settings.getEpVersion(),
+    });
+  });
+
+  app.get('/stats', (req:any, res:any) => {
+    res.json(require('../../stats').toJSON());
+  });
+
+  app.get('/javascript', (req:any, res:any) => {
+    res.send(eejs.require('ep_etherpad-lite/templates/javascript.html', {req}));
+  });
+
+  app.get('/robots.txt', (req:any, res:any) => {
+    let filePath =
+        path.join(settings.root, 'src', 'static', 'skins', settings.skinName, 'robots.txt');
+    res.sendFile(filePath, (err:any) => {
+      // there is no custom robots.txt, send the default robots.txt which dissallows all
+      if (err) {
+        filePath = path.join(settings.root, 'src', 'static', 'robots.txt');
+        res.sendFile(filePath);
+      }
+    });
+  });
+
+  app.get('/favicon.ico', (req:any, res:any, next:Function) => {
+    (async () => {
+      /*
+        If this is a url we simply redirect to that one.
+       */
+      if (settings.favicon && settings.favicon.startsWith('http')) {
+        res.redirect(settings.favicon);
+        res.send();
+        return;
+      }
+
+
+      const fns = [
+        ...(settings.favicon ? [path.resolve(settings.root, settings.favicon)] : []),
+        path.join(settings.root, 'src', 'static', 'skins', settings.skinName, 'favicon.ico'),
+        path.join(settings.root, 'src', 'static', 'favicon.ico'),
+      ];
+      for (const fn of fns) {
+        try {
+          await fsp.access(fn, fs.constants.R_OK);
+        } catch (err) {
+          continue;
+        }
+        res.setHeader('Cache-Control', `public, max-age=${settings.maxAge}`);
+        await util.promisify(res.sendFile.bind(res))(fn);
+        return;
+      }
+      next();
+    })().catch((err) => next(err || new Error(err)));
+  });
+};
+
+exports.expressCreateServer = (hookName:string, args:any, cb:Function) => {
+  // serve index.html under /
+  args.app.get('/', (req:any, res:any) => {
+    res.send(eejs.require('ep_etherpad-lite/templates/index.html', {req}));
+  });
+
+  // serve pad.html under /p
+  args.app.get('/p/:pad', (req:any, res:any, next:Function) => {
+    // The below might break for pads being rewritten
+    const isReadOnly = !webaccess.userCanModify(req.params.pad, req);
+
+    hooks.callAll('padInitToolbar', {
+      toolbar,
+      isReadOnly,
+    });
+
+    // can be removed when require-kernel is dropped
+    res.header('Feature-Policy', 'sync-xhr \'self\'');
+    res.send(eejs.require('ep_etherpad-lite/templates/pad.html', {
+      req,
+      toolbar,
+      isReadOnly,
+    }));
+  });
+
+  // serve timeslider.html under /p/$padname/timeslider
+  args.app.get('/p/:pad/timeslider', (req:any, res:any, next:Function) => {
+    hooks.callAll('padInitToolbar', {
+      toolbar,
+    });
+
+    res.send(eejs.require('ep_etherpad-lite/templates/timeslider.html', {
+      req,
+      toolbar,
+    }));
+  });
+
+  // The client occasionally polls this endpoint to get an updated expiration for the express_sid
+  // cookie. This handler must be installed after the express-session middleware.
+  args.app.put('/_extendExpressSessionLifetime', (req:any, res:any) => {
+    // express-session automatically calls req.session.touch() so we don't need to do it here.
+    res.json({status: 'ok'});
+  });
+
+  return cb();
+};