fixes #187

app/lib/functions/shareCharacter.js

@@ -1,14 +1,9 @@
 Meteor.methods({
 	"getUserId": function(username){
 		if (!username) return;
-		regex = new RegExp("^" + username + "$", "i")
-		var user = Meteor.users.findOne(
-			{$or: [
-				{username: username},
-				{"emails.address": regex},
-				{"services.google.email": regex},
-				]}
-		);
+		if (Meteor.isClient) return;
+		let user = Accounts.findUserByUsername(username) ||
+			Accounts.findUserByEmail(username);
 		return user && user._id;
 	}
 });