From 802aa9b7a7a762b3b260b6b077c180fb4ae5a3a5 Mon Sep 17 00:00:00 2001
From: Mike Welsh <mwelsh@gmail.com>
Date: Tue, 29 Dec 2020 12:01:50 -0800
Subject: [PATCH] avm1: Allow SharedObject creation even if URL is unknown (fix
 #2150)

Allow SharedObjects to be created even in the case that the movie
URL is None (for example, loading an SWF from bytes). Use a dummy
"localhost" URL.
---
 core/src/avm1/globals/shared_object.rs | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/core/src/avm1/globals/shared_object.rs b/core/src/avm1/globals/shared_object.rs
index 4373b9f67..7940a1ea7 100644
--- a/core/src/avm1/globals/shared_object.rs
+++ b/core/src/avm1/globals/shared_object.rs
@@ -176,11 +176,16 @@ pub fn get_local<'gc>(
         return Ok(Value::Null);
     };
 
-    let mut movie_url = if let Some(url) = movie.url().and_then(|url| url::Url::parse(url).ok()) {
-        url
+    let mut movie_url = if let Some(url) = movie.url() {
+        if let Ok(url) = url::Url::parse(url) {
+            url
+        } else {
+            log::error!("SharedObject::get_local: Unable to parse movie URL");
+            return Ok(Value::Null);
+        }
     } else {
-        log::error!("SharedObject::get_local: Unable to parse movie URL");
-        return Ok(Value::Null);
+        // No URL (loading local data). Use a dummy URL to allow SharedObjects to work.
+        url::Url::parse("file://localhost").unwrap()
     };
     movie_url.set_query(None);
     movie_url.set_fragment(None);