Move fillTemplate to Templater class

routes/get_about.js

@@ -1,8 +1,8 @@
 module.exports = function (app) {
   app.server.get('/about', (req, res) => {
     const resourcePath = (req.url.substr(-1) === '/' ? '../' : './');
-    const body = app.fillTemplate('./templates/pages/about.html', { resourcePath });
-    const html = app.fillTemplate('./templates/htmlContainer.html', { title: 'About', body });
+    const body = app.templater.fill('./templates/pages/about.html', { resourcePath });
+    const html = app.templater.fill('./templates/htmlContainer.html', { title: 'About', body });
     if (html) {
       res.send(html);
     } else {

routes/get_give.js

@@ -1,10 +1,10 @@
 module.exports = function (app) {
   app.server.get('/give', (req, res) => {
     const resourcePath = (req.url.substr(-1) === '/' ? '../' : './');
-    let body = app.fillTemplate('./templates/pages/uploadForm.html', { resourcePath });
+    let body = app.templater.fill('./templates/pages/uploadForm.html', { resourcePath });
     body = app.replaceBodyWithTooManyBooksWarning(body);
 
-    const html = app.fillTemplate('./templates/htmlContainer.html', { title: 'Give a Book', resourcePath, body });
+    const html = app.templater.fill('./templates/htmlContainer.html', { title: 'Give a Book', resourcePath, body });
     res.send(html);
   });
 }

routes/get_history.js

@@ -18,10 +18,10 @@ module.exports = function (app) {
       const added = fecha.format(new Date(bookData.added), 'hh:mm:ssA on dddd MMMM Do, YYYY');
       const removed = fecha.format(new Date(parseInt(id)), 'hh:mm:ssA on dddd MMMM Do, YYYY');
       const removedTag = '<div class="control"><div class="tags has-addons"><span class="tag">Taken</span><span class="tag is-warning">' + removed + '</span></div></div>';
-      const modal = app.fillTemplate('./templates/elements/modalCard.html', {
+      const modal = app.templater.fill('./templates/elements/modalCard.html', {
         id,
         header: '<h2 class="title">' + bookData.title + '</h2><h4 class="subtitle">' + bookData.author + '</h4>',
-        content: app.fillTemplate('./templates/elements/bookInfo.html', {
+        content: app.templater.fill('./templates/elements/bookInfo.html', {
           contributor: bookData.contributor,
           fileFormat: bookData.fileType,
           added,
@@ -30,7 +30,7 @@ module.exports = function (app) {
         }),
         footer: '<a class="button close">Close</a>',
       });
-      return app.fillTemplate('./templates/elements/book.html', {
+      return app.templater.fill('./templates/elements/book.html', {
         id,
         title: bookData.title,
         author: bookData.author,
@@ -44,7 +44,7 @@ module.exports = function (app) {
     }
 
     const body = '<h2 class="title">History</h2><div class="columns is-multiline">' + history + '</div>';
-    const html = app.fillTemplate('./templates/htmlContainer.html', {
+    const html = app.templater.fill('./templates/htmlContainer.html', {
       title: 'History',
       resourcePath: (req.url.substr(-1) === '/' ? '../' : './'),
       body

routes/get_home.js

@@ -19,25 +19,25 @@ module.exports = function (app) {
       const id = fileName.replace('.json', '');
       const confirmId = 'confirm_' + id;
       const added = fecha.format(new Date(bookData.added), 'hh:mm:ssA on dddd MMMM Do, YYYY');
-      const modal = app.fillTemplate('./templates/elements/modalCard.html', {
+      const modal = app.templater.fill('./templates/elements/modalCard.html', {
         id,
         header: '<h2 class="title">' + bookData.title + '</h2><h4 class="subtitle">' + bookData.author + '</h4>',
-        content: app.fillTemplate('./templates/elements/bookInfo.html', {
+        content: app.templater.fill('./templates/elements/bookInfo.html', {
           contributor: bookData.contributor,
           fileFormat: bookData.fileType,
           added,
           summary: snarkdown(bookData.summary),
         })
-          + app.fillTemplate('./templates/elements/modal.html', {
+          + app.templater.fill('./templates/elements/modal.html', {
             id: confirmId,
-            content: app.fillTemplate('./templates/elements/messageBox.html', {
+            content: app.templater.fill('./templates/elements/messageBox.html', {
               header: 'Download Your Book',
-              message: app.fillTemplate('./templates/elements/takeConfirm.html', { id }),
+              message: app.templater.fill('./templates/elements/takeConfirm.html', { id }),
             }),
           }),
         footer: '<a class="button close">Close</a> <a class="button is-success modal-button" data-modal="' + confirmId + '">Take Book</a>',
       });
-      return app.fillTemplate('./templates/elements/book.html', {
+      return app.templater.fill('./templates/elements/book.html', {
         id,
         title: bookData.title,
         author: bookData.author,
@@ -51,7 +51,7 @@ module.exports = function (app) {
     }
 
     const body = '<h2 class="title">Available Books</h2><div class="columns is-multiline">' + books + '</div>';
-    const html = app.fillTemplate('./templates/htmlContainer.html', {
+    const html = app.templater.fill('./templates/htmlContainer.html', {
       title: 'View',
       resourcePath: (req.url.substr(-1) === '/' ? '../' : './'),
       body

routes/get_tools.js

@@ -5,12 +5,12 @@ module.exports = function (app) {
   app.server.get('/tools', (req, res) => {
     if (req.query.pass === settings.toolsPassword) {
       const templateValues = {};
-      let html = app.fillTemplate('./templates/pages/tools.html', templateValues);
+      let html = app.templater.fill('./templates/pages/tools.html', templateValues);
 
       if (req.query.do && ['resetVisitors'].includes(req.query.do)) {
         app.connections = 0;
         templateValues.resetVisitors = 'Done!';
-        html = app.fillTemplate('./templates/pages/tools.html', templateValues);
+        html = app.templater.fill('./templates/pages/tools.html', templateValues);
         res.send(html);
       } else if (req.query.dl && ['files', 'history'].includes(req.query.dl)) {
         const onezip = require('onezip');
@@ -25,7 +25,7 @@ module.exports = function (app) {
           .on('error', (error) => {
             console.error(error);
             templateValues[dl + 'Download'] = 'Something went wrong: ' + JSON.stringify(error);
-            html = app.fillTemplate('./templates/pages/tools.html', templateValues);
+            html = app.templater.fill('./templates/pages/tools.html', templateValues);
             res.send(html);
           })
           .on('end', () => {
@@ -33,7 +33,7 @@ module.exports = function (app) {
             let backupLocation = saveLocation.replace(/\\/g, '/');
             backupLocation = backupLocation.substr(backupLocation.lastIndexOf('/'));
             templateValues[dl + 'Download'] = '<a download href="' + encodeURI('./files' + backupLocation) + '">Download</a> (This will be removed from the server in 1 hour)';
-            html = app.fillTemplate('./templates/pages/tools.html', templateValues);
+            html = app.templater.fill('./templates/pages/tools.html', templateValues);
             res.send(html);
             console.log('Will delete ' + saveLocation + ' in 1 hour');
             setTimeout(() => {

routes/post_give.js

@@ -8,32 +8,32 @@ module.exports = function (app) {
       const { book } = req.files;
       const fileType = book.name.substr(book.name.lastIndexOf('.'));
       app.addBook({ book, title, author, summary, contributor, fileType }, () => {
-        const messageBox = app.fillTemplate('./templates/elements/messageBox.html', {
+        const messageBox = app.templater.fill('./templates/elements/messageBox.html', {
           style: 'is-success',
           header: 'Upload Successful',
           message: 'Thank you for your contribution!'
         });
-        const modal = app.fillTemplate('./templates/elements/modal.html', {
+        const modal = app.templater.fill('./templates/elements/modal.html', {
           isActive: 'is-active',
           content: messageBox,
         });
-        let body = app.fillTemplate('./templates/pages/uploadForm.html', { resourcePath });
+        let body = app.templater.fill('./templates/pages/uploadForm.html', { resourcePath });
         body = app.replaceBodyWithTooManyBooksWarning(body);
-        const html = app.fillTemplate('./templates/htmlContainer.html', { title: 'Give a Book', resourcePath, body, modal });
+        const html = app.templater.fill('./templates/htmlContainer.html', { title: 'Give a Book', resourcePath, body, modal });
         res.send(html);
       }, (err) => {
-        const messageBox = app.fillTemplate('./templates/elements/messageBox.html', {
+        const messageBox = app.templater.fill('./templates/elements/messageBox.html', {
           style: 'is-danger',
           header: 'Upload Failed',
           message: err,
         });
-        const modal = app.fillTemplate('./templates/elements/modal.html', {
+        const modal = app.templater.fill('./templates/elements/modal.html', {
           isActive: 'is-active',
           content: messageBox,
         });
-        let body = app.fillTemplate('./templates/pages/uploadForm.html', { resourcePath, title, author, summary, contributor });
+        let body = app.templater.fill('./templates/pages/uploadForm.html', { resourcePath, title, author, summary, contributor });
         body = app.replaceBodyWithTooManyBooksWarning(body);
-        const html = app.fillTemplate('./templates/htmlContainer.html', { title: 'Give a Book', resourcePath, body, modal });
+        const html = app.templater.fill('./templates/htmlContainer.html', { title: 'Give a Book', resourcePath, body, modal });
         res.send(html);
       });
     } else {
@@ -47,14 +47,14 @@ module.exports = function (app) {
       if (!req.body.hasOwnProperty('summary') || req.body.summary.trim() === '') {
         errorMessage += (errorMessage.length > 0 ? '<br>' : '') + 'You have not written a summary.';
       }
-      const message = app.fillTemplate('./templates/elements/messageBox.html', {
+      const message = app.templater.fill('./templates/elements/messageBox.html', {
         style: 'is-danger',
         header: 'Missing Required Fields',
         message: errorMessage,
       });
-      let body = app.fillTemplate('./templates/pages/uploadForm.html', { resourcePath, title, author, summary, contributor });
+      let body = app.templater.fill('./templates/pages/uploadForm.html', { resourcePath, title, author, summary, contributor });
       body = app.replaceBodyWithTooManyBooksWarning(body);
-      const html = app.fillTemplate('./templates/htmlContainer.html', { title: 'Give a Book', resourcePath, body, message });
+      const html = app.templater.fill('./templates/htmlContainer.html', { title: 'Give a Book', resourcePath, body, message });
       res.send(html);
     }
   });

routes/post_tools.js

@@ -5,7 +5,7 @@ module.exports = function (app) {
   app.server.post('/tools', (req, res) => {
     if (req.query.pass === settings.toolsPassword) {
       const templateValues = {};
-      let html = app.fillTemplate('./templates/pages/tools.html', templateValues);
+      let html = app.templater.fill('./templates/pages/tools.html', templateValues);
 
       const { files } = req;
       if (Object.keys(files).length > 0) {
@@ -17,7 +17,7 @@ module.exports = function (app) {
             if (err) {
               console.error(error);
               templateValues[backupType + 'UploadSuccess'] = 'Could not upload the file.';
-              html = app.fillTemplate('./templates/pages/tools.html', templateValues);
+              html = app.templater.fill('./templates/pages/tools.html', templateValues);
               res.send(html);
             } else {
               onezip.extract(uploadPath, path.resolve('./public', backupType))
@@ -27,12 +27,12 @@ module.exports = function (app) {
                 .on('error', (error) => {
                   console.error(error);
                   templateValues[backupType + 'UploadSuccess'] = 'Something went wrong: ' + JSON.stringify(error);
-                  html = app.fillTemplate('./templates/pages/tools.html', templateValues);
+                  html = app.templater.fill('./templates/pages/tools.html', templateValues);
                   res.send(html);
                 })
                 .on('end', () => {
                   templateValues[backupType + 'UploadSuccess'] = 'Uploaded Successfully!';
-                  html = app.fillTemplate('./templates/pages/tools.html', templateValues);
+                  html = app.templater.fill('./templates/pages/tools.html', templateValues);
                   res.send(html);
                   fs.unlink(uploadPath, (err) => {
                     if (err) {
@@ -46,7 +46,7 @@ module.exports = function (app) {
           });
         } else {
           templateValues['generalError'] = '<p>' + backupType + ' is not a valid backup type.</p>';
-          html = app.fillTemplate('./templates/pages/tools.html', templateValues);
+          html = app.templater.fill('./templates/pages/tools.html', templateValues);
           res.send(html);
         }
       } else {

server.js

@@ -13,6 +13,8 @@ const privateKey = settings.sslPrivateKey ? fs.readFileSync(settings.sslPrivateK
 const certificate = settings.sslCertificate ? fs.readFileSync(settings.sslCertificate, 'utf8') : null;
 const ca = settings.sslCertificateAuthority ? fs.readFileSync(settings.sslCertificateAuthority, 'utf8') : null;
 
+const Templater = require('./templates/Templater');
+
 function Server () {
   this.server = express();
   this.http = http.Server(this.server);
@@ -28,7 +30,7 @@ function Server () {
   this.fileLocation = path.resolve(settings.fileLocation);
   this.historyLocation = path.resolve(settings.historyLocation);
 
-  this.templateCache = {};
+  this.templater = new Templater(this);
 
   this.connections = 0;
   this.takenBooks = [];
@@ -50,42 +52,11 @@ function Server () {
   require('./routes/socketio')(this);
 }
 
-Server.prototype.fillTemplate = function (file, templateVars = {}) {
-  let data;
-  if (this.templateCache.hasOwnProperty(file)) {
-    data = this.templateCache[file];
-  } else {
-    data = fs.readFileSync(path.resolve(file), 'utf8');
-  }
-  if (data) {
-    if (!this.templateCache.hasOwnProperty(file)) {
-      this.templateCache[file] = data;
-    }
-
-    let filledTemplate = data.replace(/\{\{siteTitle\}\}/g, settings.siteTitle)
-      .replace(/\{\{titleSeparator\}\}/g, settings.titleSeparator)
-      .replace(/\{\{allowedFormats\}\}/g, settings.allowedFormats.join(','))
-      .replace(/\{\{maxFileSize\}\}/g, (settings.maxFileSize > 0 ? settings.maxFileSize + 'MB' : 'no'));
-
-    for (let templateVar in templateVars) {
-      const regExp = new RegExp('\{\{' + templateVar + '\}\}', 'g')
-      filledTemplate = filledTemplate.replace(regExp, templateVars[templateVar]);
-    }
-
-    // If any template variable is not provided, don't even render them.
-    filledTemplate = filledTemplate.replace(/\{\{[a-zA-Z0-9\-_]+\}\}/g, '');
-
-    return filledTemplate;
-  }
-  
-  return data;
-}
-
 Server.prototype.replaceBodyWithTooManyBooksWarning = function (body) {
   if (settings.maxLibrarySize > 0) {
     const numberOfBooks = fs.readdirSync(this.fileLocation).filter(fileName => fileName.includes('.json')).length;
     if (numberOfBooks >= settings.maxLibrarySize) {
-      body = this.fillTemplate('./templates/elements/messageBox.html', {
+      body = this.templater.fill('./templates/elements/messageBox.html', {
         style: 'is-danger',
         title: 'Library Full',
         message: 'Sorry, the library has reached its maximum capacity for books! You will need to wait until a book is taken before a new one can be added.',

templates/Templater.js

@@ -0,0 +1,42 @@
+const path = require('path');
+const fs = require('fs');
+
+const settings = require('../settings.json');
+
+module.exports = class {
+  constructor (app) {
+    this.app = app;
+    this.cache = {};
+  }
+
+  fill (file, templateVars = {}) {
+    let data;
+    if (this.cache.hasOwnProperty(file)) {
+      data = this.cache[file];
+    } else {
+      data = fs.readFileSync(path.resolve(file), 'utf8');
+    }
+    if (data) {
+      if (!this.cache.hasOwnProperty(file)) {
+        this.cache[file] = data;
+      }
+
+      let filledTemplate = data.replace(/\{\{siteTitle\}\}/g, settings.siteTitle)
+        .replace(/\{\{titleSeparator\}\}/g, settings.titleSeparator)
+        .replace(/\{\{allowedFormats\}\}/g, settings.allowedFormats.join(','))
+        .replace(/\{\{maxFileSize\}\}/g, (settings.maxFileSize > 0 ? settings.maxFileSize + 'MB' : 'no'));
+
+      for (let templateVar in templateVars) {
+        const regExp = new RegExp('\{\{' + templateVar + '\}\}', 'g')
+        filledTemplate = filledTemplate.replace(regExp, templateVars[templateVar]);
+      }
+
+      // If any template variable is not provided, don't even render them.
+      filledTemplate = filledTemplate.replace(/\{\{[a-zA-Z0-9\-_]+\}\}/g, '');
+
+      return filledTemplate;
+    }
+
+    return data;
+  }
+}