Add a check for `fscommand:` URLs

core/src/avm1.rs

@@ -13,6 +13,7 @@ mod globals;
 pub mod movie_clip;
 pub mod object;
 mod value;
+mod fscommand;
 
 pub use value::Value;
 
@@ -676,6 +677,10 @@ impl<'gc> Avm1<'gc> {
             return Ok(());
         }
 
+        if let Some(fscommand) = fscommand::parse(url) {
+            return fscommand::handle(fscommand, self, context);
+        }
+
         context
             .navigator
             .navigate_to_url(url.to_owned(), Some(target.to_owned()), None);

core/src/avm1/fscommand.rs

@@ -0,0 +1,20 @@
+//! FSCommand handling
+
+use crate::avm1::{Avm1, ActionContext, Error};
+
+/// Parse an FSCommand URL.
+pub fn parse(url: &str) -> Option<&str> {
+    if url.starts_with("fscommand:") {
+        Some(&url["fscommand:".len()..])
+    } else {
+        None
+    }
+}
+
+/// TODO: FSCommand URL handling
+pub fn handle(fscommand: &str, _avm: &mut Avm1, _ac: &mut ActionContext) -> Result<(), Error> {
+    log::warn!("Unhandled FSCommand: {}", fscommand);
+
+    //This should be an error.
+    Ok(())
+}

core/src/avm1/globals.rs

@@ -1,11 +1,12 @@
 use crate::avm1::{ActionContext, Avm1, Object, Value};
+use crate::avm1::fscommand;
 use crate::backend::navigator::NavigationMethod;
 use gc_arena::{GcCell, MutationContext};
 use rand::Rng;
 
 mod math;
 
-#[allow(non_snake_case)]
+#[allow(non_snake_case, unused_must_use)] //can't use errors yet
 pub fn getURL<'a, 'gc>(
     avm: &mut Avm1<'gc>,
     context: &mut ActionContext<'a, 'gc, '_>,
@@ -15,6 +16,11 @@ pub fn getURL<'a, 'gc>(
     //TODO: Error behavior if no arguments are present
     if let Some(url_val) = args.get(0) {
         let url = url_val.clone().into_string();
+        if let Some(fscommand) = fscommand::parse(&url) {
+            fscommand::handle(fscommand, avm, context);
+            return Value::Undefined;
+        }
+        
         let window = args.get(1).map(|v| v.clone().into_string());
         let method = match args.get(2) {
             Some(Value::String(s)) if s == "GET" => Some(NavigationMethod::GET),