Get wallet encryption status

lib/src/commands.rs

@@ -35,6 +35,26 @@ impl Command for SyncCommand {
     }
 }
 
+struct EncryptionStatusCommand {}
+impl Command for EncryptionStatusCommand {
+    fn help(&self) -> String {
+        let mut h = vec![];
+        h.push("Check if the wallet is encrypted and if it is locked");
+        h.push("Usage:");
+        h.push("encryptionstatus");
+        h.push("");
+
+        h.join("\n")
+    }
+
+    fn short_help(&self) -> String {
+        "Check if the wallet is encrypted and if it is locked".to_string()
+    }
+
+    fn exec(&self, _args: &[&str], lightclient: &LightClient) -> String {
+        lightclient.do_encryption_status().pretty(2)
+    }
+}
 
 struct SyncStatusCommand {}
 impl Command for SyncStatusCommand {
@@ -733,6 +753,7 @@ pub fn get_commands() -> Box<HashMap<String, Box<dyn Command>>> {
 
     map.insert("sync".to_string(),              Box::new(SyncCommand{}));
     map.insert("syncstatus".to_string(),        Box::new(SyncStatusCommand{}));
+    map.insert("encryptionstatus".to_string(),  Box::new(EncryptionStatusCommand{}));
     map.insert("rescan".to_string(),            Box::new(RescanCommand{}));
     map.insert("help".to_string(),              Box::new(HelpCommand{}));
     map.insert("balance".to_string(),           Box::new(BalanceCommand{}));

lib/src/lightclient.rs

@@ -639,6 +639,14 @@ impl LightClient {
         res
     }
 
+    pub fn do_encryption_status(&self) -> JsonValue {
+        let wallet = self.wallet.read().unwrap();
+        object!{
+            "encrypted" => wallet.is_encrypted(),
+            "locked"    => !wallet.is_unlocked_for_spending()
+        }
+    }
+
     pub fn do_list_transactions(&self) -> JsonValue {
         let wallet = self.wallet.read().unwrap();