Rename server => modules

modules/middleware/validatePackageURL.js

@@ -0,0 +1,25 @@
+const parsePackageURL = require("../utils/parsePackageURL");
+
+/**
+ * Parse the URL and add various properties to the request object to
+ * do with the package/file being requested. Reject invalid URLs.
+ */
+function validatePackageURL(req, res, next) {
+  const url = parsePackageURL(req.url);
+
+  if (url == null) {
+    return res.status(403).send({ error: `Invalid URL: ${req.url}` });
+  }
+
+  req.packageName = url.packageName;
+  req.packageVersion = url.packageVersion;
+  req.packageSpec = `${url.packageName}@${url.packageVersion}`;
+  req.pathname = url.pathname; // TODO: remove
+  req.filename = url.filename;
+  req.search = url.search;
+  req.query = url.query;
+
+  next();
+}
+
+module.exports = validatePackageURL;