From 97f2c96a7ed50f6e36023a05aa2f05c8d456d3a8 Mon Sep 17 00:00:00 2001
From: Greg Fitzgerald <greg@solana.com>
Date: Wed, 6 Mar 2019 14:33:12 -0700
Subject: [PATCH] Add a transaction and instruction

---
 programs/vote_api/src/vote_instruction.rs |  9 +++++++++
 programs/vote_api/src/vote_transaction.rs | 15 +++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/programs/vote_api/src/vote_instruction.rs b/programs/vote_api/src/vote_instruction.rs
index 28a2beebee..18d4cad7fa 100644
--- a/programs/vote_api/src/vote_instruction.rs
+++ b/programs/vote_api/src/vote_instruction.rs
@@ -23,6 +23,8 @@ pub enum VoteInstruction {
     InitializeAccount,
     /// `Delegate` or `Assign` a vote account to a particular node
     DelegateStake(Pubkey),
+    /// Authorize a voter to send signed votes.
+    AuthorizeVoter(Pubkey),
     Vote(Vote),
     /// Clear the credits in the vote account
     /// * Transaction::keys[0] - the "vote account"
@@ -40,6 +42,13 @@ impl VoteInstruction {
             vec![(vote_id, true)],
         )
     }
+    pub fn new_authorize_voter(vote_id: Pubkey, authorized_voter_id: Pubkey) -> BuilderInstruction {
+        BuilderInstruction::new(
+            id(),
+            &VoteInstruction::AuthorizeVoter(authorized_voter_id),
+            vec![(vote_id, true)],
+        )
+    }
     pub fn new_initialize_account(vote_id: Pubkey) -> BuilderInstruction {
         BuilderInstruction::new(
             id(),
diff --git a/programs/vote_api/src/vote_transaction.rs b/programs/vote_api/src/vote_transaction.rs
index cf90ce083e..e317124cbe 100644
--- a/programs/vote_api/src/vote_transaction.rs
+++ b/programs/vote_api/src/vote_transaction.rs
@@ -73,6 +73,21 @@ impl VoteTransaction {
             .sign(&[from_keypair, voter_keypair], recent_blockhash)
     }
 
+    /// Choose a voter id to accept signed votes from
+    pub fn new_authorize_voter(
+        vote_keypair: &Keypair,
+        recent_blockhash: Hash,
+        authorized_voter_id: Pubkey,
+        fee: u64,
+    ) -> Transaction {
+        TransactionBuilder::new(fee)
+            .push(VoteInstruction::new_authorize_voter(
+                vote_keypair.pubkey(),
+                authorized_voter_id,
+            ))
+            .sign(&[vote_keypair], recent_blockhash)
+    }
+
     /// Choose a node id to `delegate` or `assign` this vote account to
     pub fn delegate_vote_account<T: KeypairUtil>(
         vote_keypair: &T,