support larger upload sizes for users with premium accounts

lib/commands/upload.js

@@ -12,9 +12,41 @@ Upload.status = function (Env, safeKey, filesize, _cb) { // FIXME FILES
     if (typeof(filesize) !== 'number' &&
         filesize >= 0) { return void cb('E_INVALID_SIZE'); }
 
-    if (filesize >= Env.maxUploadSize) { return cb('TOO_LARGE'); }
-
     nThen(function (w) {
+        // if the proposed upload size is within the regular limit
+        // jump ahead to the next block
+        if (filesize <= Env.maxUploadSize) { return; }
+
+        // if larger uploads aren't explicitly enabled then reject them
+        if (typeof(Env.premiumUploadSize) !== 'number') {
+            w.abort();
+            return void cb('TOO_LARGE');
+        }
+
+        // otherwise go and retrieve info about the user's quota
+        Pinning.getLimit(Env, safeKey, w(function (err, limit) {
+            if (err) {
+                w.abort();
+                return void cb("E_BAD_LIMIT");
+            }
+
+            var plan = limit[1];
+
+            // see if they have a special plan, reject them if not
+            if (plan === '') {
+                w.abort();
+                return void cb('TOO_LARGE');
+            }
+
+            // and that they're not over the greater limit
+            if (filesize >= Env.premiumUploadSize) {
+                w.abort();
+                return void cb("TOO_LARGE");
+            }
+
+            // fallthrough will proceed to the next block
+        }));
+    }).nThen(function (w) {
         var abortAndCB = Util.both(w.abort, cb);
         Env.blobStore.status(safeKey, w(function (err, inProgress) {
             // if there's an error something is weird