alternate pubkey persistence

persister/src/lib.rs

@@ -22,7 +22,7 @@ pub struct FsPersister {
     channels: DoubleBucket<ChannelEntry>,
     allowlist: Bucket<AllowlistItemEntry>,
     chaintracker: Bucket<ChainTrackerEntry>,
-    pubkeys: Bucket<PublicKey>,
+    pubkeys: Bucket<Vec<PublicKey>>,
 }
 
 impl FsPersister {
@@ -44,6 +44,36 @@ fn get_channel_key(channel_id: &[u8]) -> &[u8] {
     channel_id.get(length - 11..length - 7).unwrap()
 }
 
+const PUBKEY_KEY: &str = "PKS";
+
+impl FsPersister {
+    fn get_pubkeys(&self) -> Vec<PublicKey> {
+        match self.pubkeys.get(PUBKEY_KEY) {
+            Ok(ps) => ps,
+            Err(_) => Vec::new(),
+        }
+    }
+    fn add_pubkey(&self, pubkey: &PublicKey) {
+        let mut pks: Vec<PublicKey> = match self.pubkeys.get(PUBKEY_KEY) {
+            Ok(ps) => ps,
+            Err(_) => Vec::new(),
+        };
+        let pk = pubkey.clone();
+        if !pks.contains(&pk) {
+            pks.push(pk);
+            let _ = self.pubkeys.put(PUBKEY_KEY, pks);
+        }
+    }
+    fn remove_pubkey(&self, pk: &PublicKey) {
+        let pks: Vec<PublicKey> = match self.pubkeys.get(PUBKEY_KEY) {
+            Ok(ps) => ps,
+            Err(_) => Vec::new(),
+        };
+        let newpks = pks.iter().filter(|p| *p != pk).map(|p| p.clone()).collect();
+        let _ = self.pubkeys.put(PUBKEY_KEY, newpks);
+    }
+}
+
 impl Persist for FsPersister {
     fn new_node(&self, node_id: &PublicKey, config: &NodeConfig, seed: &[u8]) {
         let pk = hex::encode(node_id.serialize());
@@ -53,14 +83,14 @@ impl Persist for FsPersister {
             network: config.network.to_string(),
         };
         let _ = self.nodes.put(&pk, entry);
-        let _ = self.pubkeys.put(&pk, node_id.clone());
+        self.add_pubkey(node_id);
     }
     fn delete_node(&self, node_id: &PublicKey) {
         let pk = hex::encode(node_id.serialize());
         // clear all channel entries within "pk" sub-bucket
         let _ = self.channels.clear(&pk);
         let _ = self.nodes.remove(&pk);
-        let _ = self.pubkeys.remove(&pk);
+        self.remove_pubkey(node_id);
     }
     fn new_channel(&self, node_id: &PublicKey, stub: &ChannelStub) -> Result<(), ()> {
         let pk = hex::encode(node_id.serialize());
@@ -171,17 +201,13 @@ impl Persist for FsPersister {
     }
     fn get_nodes(&self) -> Vec<(PublicKey, CoreNodeEntry)> {
         let mut res = Vec::new();
-        let list = match self.nodes.list() {
+        let list = self.get_pubkeys();
-            Ok(ns) => ns,
+        for pubkey in list {
-            Err(_) => return res,
+            let pk = hex::encode(pubkey.serialize());
-        };
-        for pk in list {
-            if let Ok(pubkey) = self.pubkeys.get(&pk) {
             if let Ok(node) = self.nodes.get(&pk) {
                 res.push((pubkey, node.into()));
             }
         }
-        }
         res
     }
     fn clear_database(&self) {