feat(courses): Add view helpers

helpers.js

@@ -0,0 +1,17 @@
+const marked = require('marked')
+
+// Parse markdown text
+exports.markdown = (content) => {
+  return marked(removeIvalidDataURL(content), {sanitize: true})
+}
+
+// Dump is a handy debugging function we can use to sort of "console.log" our data
+exports.dump = (obj) => JSON.stringify(obj, null, 2)
+
+// Evil users might try to add base64 url data to execute js
+// so we should take care of that
+function removeIvalidDataURL (content) {
+  let regex = /data:\S+;base64\S*/gm
+  return content.replace(regex, '#')
+}
+