Better applink icon support

src/routes/applinks.js

@@ -5,7 +5,8 @@ exports = module.exports = {
     add,
     get,
     update,
-    remove
+    remove,
+    getIcon
 };
 
 const assert = require('assert'),
@@ -64,3 +65,12 @@ async function remove(req, res, next) {
 
     next(new HttpSuccess(204));
 }
+
+async function getIcon(req, res, next) {
+    assert.strictEqual(typeof req.params.id, 'string');
+
+    const [error, icon] = await safe(applinks.getIcon(req.params.id, { original: req.query.original }));
+    if (error) return next(BoxError.toHttpError(error));
+
+    res.send(icon);
+}