merged conflicts manually

lib/src/commands.rs

@@ -231,6 +231,16 @@ impl Command for EncryptCommand {
             return self.help();
         }
 
+        // Refuse to encrypt if the bip39 bug has not been fixed
+        use crate::lightwallet::bugs::BugBip39Derivation;
+        if BugBip39Derivation::has_bug(lightclient) {
+            let mut h = vec![];
+            h.push("It looks like your wallet has the bip39bug. Please run 'fixbip39bug' to fix it");
+            h.push("before encrypting your wallet.");
+            h.push("ERROR: Cannot encrypt while wallet has the bip39bug.");
+            return h.join("\n");
+        }
+
         let passwd = args[0].to_string();
 
         match lightclient.wallet.write().unwrap().encrypt(passwd) {

lib/src/lightclient.rs

@@ -244,8 +244,32 @@ impl LightClient {
         Ok(l)
     }
 
+    /// Create a brand new wallet with a new seed phrase. Will fail if a wallet file 
+    /// already exists on disk
+    pub fn new(config: &LightClientConfig, latest_block: u64) -> io::Result<Self> {
+        if config.wallet_exists() {
+            return Err(Error::new(ErrorKind::AlreadyExists,
+                    "Cannot create a new wallet from seed, because a wallet already exists"));
+        }
+
+        let mut l = LightClient {
+                wallet          : Arc::new(RwLock::new(LightWallet::new(None, config, latest_block)?)),
+                config          : config.clone(),
+                sapling_output  : vec![], 
+                sapling_spend   : vec![]
+            };
+
+        l.set_wallet_initial_state();
+        l.read_sapling_params();
+
+        info!("Created new wallet with a new seed!");
+        info!("Created LightClient to {}", &config.server);
+
+        Ok(l)
+    }
+
     pub fn new_from_phrase(seed_phrase: String, config: &LightClientConfig, latest_block: u64) -> io::Result<Self> {
-        if config.get_wallet_path().exists() {
+        if config.wallet_exists() {
             return Err(Error::new(ErrorKind::AlreadyExists,
                     "Cannot create a new wallet from seed, because a wallet already exists"));
         }
@@ -267,7 +291,7 @@ impl LightClient {
     }
 
     pub fn read_from_disk(config: &LightClientConfig) -> io::Result<Self> {
-        if !config.get_wallet_path().exists() {
+        if !config.wallet_exists() {
             return Err(Error::new(ErrorKind::AlreadyExists,
                     format!("Cannot read wallet. No file at {}", config.get_wallet_path().display())));
         }

lib/src/lightwallet.rs

@@ -39,7 +39,6 @@ use zcash_primitives::{
     primitives::{PaymentAddress},
 };
 
-
 use crate::lightclient::{LightClientConfig};
 
 mod data;
@@ -58,7 +57,6 @@ fn now() -> f64 {
     SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs() as f64
 }
 
-
 /// Sha256(Sha256(value))
 pub fn double_sha256(payload: &[u8]) -> Vec<u8> {
     let h1 = Sha256::digest(&payload);

lib/src/lightwallet/bugs.rs

@@ -28,6 +28,10 @@ impl BugBip39Derivation {
             return false;
         }
 
+        if wallet.is_encrypted() {
+            return false;
+        }
+
         // The seed bytes is the raw entropy. To pass it to HD wallet generation, 
         // we need to get the 64 byte bip39 entropy
         let bip39_seed = bip39::Seed::new(&Mnemonic::from_entropy(&wallet.seed, Language::English).unwrap(), "");
@@ -73,13 +77,12 @@ impl BugBip39Derivation {
         println!("Sending funds to ourself.");
         let zaddr = client.do_address()["z_addresses"][0].as_str().unwrap().to_string();
         let balance_json = client.do_balance();
-        let fee: u64 = DEFAULT_FEE.try_into().unwrap();
         let amount: u64 =  balance_json["zbalance"].as_u64().unwrap() 
-                         + balance_json["tbalance"].as_u64().unwrap()
-                         - fee;
+                         + balance_json["tbalance"].as_u64().unwrap();
 
         let txid = if amount > 0 {
-            match client.do_send(vec![(&zaddr, amount, None)]) {
+            let fee: u64 = DEFAULT_FEE.try_into().unwrap();
+            match client.do_send(vec![(&zaddr, amount-fee, None)]) {
                 Ok(txid) => txid,
                 Err(e) => {
                     let r = object!{