server-ts: Port services/import/markdown

src/services/import/markdown.ts

@@ -0,0 +1,17 @@
+"use strict";
+
+import marked = require("marked");
+import htmlSanitizer = require('../html_sanitizer');
+import importUtils = require('./utils');
+
+function renderToHtml(content: string, title: string) {
+    const html = marked.parse(content, {
+        async: false
+    });  // FIXME: mangle and headerIds does not seem to exist in marked
+    const h1Handled = importUtils.handleH1(html, title); // h1 handling needs to come before sanitization
+    return htmlSanitizer.sanitize(h1Handled);
+}
+
+export = {
+    renderToHtml
+};