Client's public folder renamed to static

Regular campaign sender seems to have most of the code in place. (Not tested.)

lib/tools.js

@@ -4,6 +4,7 @@ const _ = require('./translate')._;
 const util = require('util');
 const isemail = require('isemail');
 const path = require('path');
+const {getPublicUrl} = require('./urls');
 
 const bluebird = require('bluebird');
 
@@ -11,11 +12,13 @@ const hasher = require('node-object-hash')();
 const mjml = require('mjml');
 const hbs = require('hbs');
 const juice = require('juice');
+let he = require('he');
 
 const fsReadFile = bluebird.promisify(require('fs').readFile);
 const jsdomEnv = bluebird.promisify(require('jsdom').env);
 
 
+
 const templates = new Map();
 
 async function getTemplate(template) {
@@ -102,6 +105,38 @@ function validateEmailGetMessage(result, address) {
     }
 }
 
+function formatMessage(campaign, list, subscription, mergeTags, message, filter, isHTML) {
+    filter = typeof filter === 'function' ? filter : (str => str);
+
+    let links = getMessageLinks(campaign, list, subscription);
+
+    let getValue = key => {
+        key = (key || '').toString().toUpperCase().trim();
+        if (links.hasOwnProperty(key)) {
+            return links[key];
+        }
+        if (mergeTags.hasOwnProperty(key)) {
+            let value = (mergeTags[key] || '').toString();
+            let containsHTML = /<[a-z][\s\S]*>/.test(value);
+            return isHTML ? he.encode((containsHTML ? value : value.replace(/(?:\r\n|\r|\n)/g, '<br/>')), {
+                useNamedReferences: true,
+                allowUnsafeSymbols: true
+            }) : (containsHTML ? htmlToText.fromString(value) : value);
+        }
+        return false;
+    };
+
+    return message.replace(/\[([a-z0-9_]+)(?:\/([^\]]+))?\]/ig, (match, identifier, fallback) => {
+        identifier = identifier.toUpperCase();
+        let value = getValue(identifier);
+        if (value === false) {
+            return match;
+        }
+        value = (value || fallback || '').trim();
+        return filter(value);
+    });
+}
+
 async function prepareHtml(html) {
     if (!(html || '').toString().trim()) {
         return false;
@@ -137,12 +172,23 @@ async function prepareHtml(html) {
     return juice(preparedHtml);
 }
 
+function getMessageLinks(campaign, list, subscription) {
+    return {
+        LINK_UNSUBSCRIBE: getPublicUrl('/subscription/' + list.cid + '/unsubscribe/' + subscription.cid + '?c=' + campaign.cid),
+        LINK_PREFERENCES: getPublicUrl('/subscription/' + list.cid + '/manage/' + subscription.cid),
+        LINK_BROWSER: getPublicUrl('/archive/' + campaign.cid + '/' + list.cid + '/' + subscription.cid),
+        CAMPAIGN_ID: campaign.cid,
+        LIST_ID: list.cid,
+        SUBSCRIPTION_ID: subscription.cid
+    };
+}
 
 module.exports = {
     validateEmail,
     validateEmailGetMessage,
     mergeTemplateIntoLayout,
     getTemplate,
-    prepareHtml
+    prepareHtml,
+    getMessageLinks
 };