OpenAlias support

Cargo.toml

@@ -50,6 +50,7 @@ reqwest = { version = "0.6", optional = true }
 clippy = {version = "0.0", optional = true}
 chrono = "0.4"
 hidapi = "0.4"
+openalias = { version = "0.2", optional = true }
 
 [dev-dependencies]
 tempdir = "0.3"
@@ -61,3 +62,4 @@ default = ["http", "emerald-rocksdb"]
 http = ["hyper", "reqwest"]
 dev = ["clippy"]
 fs-storage = []
+openalias-support = ["openalias"]

shell.nix

@@ -30,6 +30,6 @@ with pkgs;
 stdenv.mkDerivation {
   name = "emerald-env";
   buildInputs = [
-    rustc cargo openssl pkgconfig
+    rustc cargo openssl pkgconfig libusb
   ];
 }

src/lib.rs

@@ -35,6 +35,9 @@ extern crate hex;
 extern crate hidapi;
 extern crate emerald_rocksdb as rocksdb;
 
+#[cfg(feature = "openalias-support")]
+extern crate openalias;
+
 mod core;
 pub mod addressbook;
 pub mod keystore;

src/rpc/serves.rs

@@ -356,7 +356,24 @@ pub fn sign_transaction(
     wallet_manager: &Mutex<RefCell<WManager>>,
 ) -> Result<Params, Error> {
     let storage_ctrl = storage.lock().unwrap();
-    let (transaction, additional) = params.into_full();
+    let (mut transaction, additional) = params.into_full();
+
+    #[cfg(feature = "openalias-support")]
+    {
+        use openalias;
+
+        if !transaction.to.starts_with("0x") {
+            if let Ok(addresses) = openalias::addresses(&transaction.to) {
+                for address in addresses {
+                    if &address.cryptocurrency == "etc" {
+                        transaction.to = address.address;
+                        break;
+                    }
+                }
+            }
+        }
+    }
+
     let storage = storage_ctrl.get_keystore(&additional.chain)?;
     let addr = Address::from_str(&transaction.from)?;