Add force presign order filtering flag (#3893)

# Description

We want to disable order filtering for flash loans, but keep filtering
for presign order that have not been presigned. For this I introduced a
new flag that forces this filter even if filtering in general is
disabled.

Author: fafk

crates/autopilot/src/arguments.rs

@@ -260,6 +260,10 @@ pub struct Arguments {
     #[clap(long, env, default_value = "false", action = clap::ArgAction::Set)]
     pub disable_order_filtering: bool,
 
+    // Filter out orders that have not been presigned even if disable_order_filtering is turned on.
+    #[clap(long, env, default_value = "false", action = clap::ArgAction::Set)]
+    pub force_presign_order_filtering: bool,
+
     /// Enables the usage of leader lock in the database
     /// The second instance of autopilot will act as a follower
     /// and not cut any auctions.
@@ -397,6 +401,7 @@ impl std::fmt::Display for Arguments {
             db_based_solver_participation_guard,
             disable_order_filtering,
             enable_leader_lock,
+            force_presign_order_filtering,
         } = self;
 
         write!(f, "{shared}")?;
@@ -472,6 +477,10 @@ impl std::fmt::Display for Arguments {
             "db_based_solver_participation_guard: {db_based_solver_participation_guard:?}"
         )?;
         writeln!(f, "disable_order_filtering: {disable_order_filtering}")?;
+        writeln!(
+            f,
+            "force_presign_order_filtering: {force_presign_order_filtering}"
+        )?;
         writeln!(f, "enable_leader_lock: {enable_leader_lock}")?;
         Ok(())
     }

crates/autopilot/src/run.rs

@@ -543,6 +543,7 @@ pub async fn run(args: Arguments, shutdown_controller: ShutdownController) {
         args.run_loop_native_price_timeout,
         eth.contracts().settlement().address().into_legacy(),
         args.disable_order_filtering,
+        args.force_presign_order_filtering,
     );
 
     let liveness = Arc::new(Liveness::new(args.max_auction_age));

crates/autopilot/src/solvable_orders.rs

@@ -102,6 +102,7 @@ pub struct SolvableOrdersCache {
     native_price_timeout: Duration,
     settlement_contract: H160,
     disable_order_filters: bool,
+    force_presign_order_filtering: bool,
 }
 
 type Balances = HashMap<Query, U256>;
@@ -128,6 +129,7 @@ impl SolvableOrdersCache {
         native_price_timeout: Duration,
         settlement_contract: H160,
         disable_order_filters: bool,
+        force_presign_order_filtering: bool,
     ) -> Arc<Self> {
         Arc::new(Self {
             min_order_validity_period,
@@ -146,6 +148,7 @@ impl SolvableOrdersCache {
             native_price_timeout,
             settlement_contract,
             disable_order_filters,
+            force_presign_order_filtering,
         })
     }
 
@@ -390,7 +393,7 @@ impl SolvableOrdersCache {
         invalid_order_uids: &mut HashSet<OrderUid>,
     ) -> Vec<Order> {
         let filter_invalid_signatures = async {
-            if self.disable_order_filters {
+            if self.disable_order_filters && !self.force_presign_order_filtering {
                 return Default::default();
             }
             find_invalid_signature_orders(&orders, self.signature_validator.as_ref()).await