Generate, sign, and populate message fields.

Change-Id: Ia03b080f17fc27e34178dda0a946d46a6cb6877c

solana/anchor-bridge/programs/anchor-bridge/src/api/publish_message.rs

@@ -16,7 +16,7 @@ const VAA_TX_FEE: u64 = 18 * 10000;
 /// Maximum size of a posted VAA
 pub const MAX_PAYLOAD_SIZE: usize = 400;
 
-pub fn publish_message(bridge: &mut Bridge, ctx: Context<PublishMessage>) -> Result<()> {
+pub fn publish_message(bridge: &mut Bridge, ctx: Context<PublishMessage>, nonce: u8) -> Result<()> {
     // Manually create message account, as Anchor can't do it.
     let mut message: ProgramAccount<PostedMessage> = {
         // First create the message account. 8 Bytes additional for the discriminator.
@@ -30,26 +30,33 @@ pub fn publish_message(bridge: &mut Bridge, ctx: Context<PublishMessage>) -> Res
             ctx.program_id,
         );
 
-        // let seeds = [
-        //     ctx.accounts.poll.to_account_info().key.as_ref(),
-        //     ctx.accounts.stake.member.to_account_info().key.as_ref(),
-        //     &[nonce],
-        // ];
-        // let signer = &[&seeds[..]];
-        // solana_program::program::invoke_signed(
-        //     &ix,
-        //     &[
-        //         ctx.accounts.stake.beneficiary.clone(),
-        //         ctx.accounts.vote.clone(),
-        //         ctx.accounts.system_program.clone(),
-        //     ],
-        //     signer,
-        // )?;
+        // Derived seeds for a message account.
+        let seeds = [
+            ctx.program_id.as_ref(),
+            ctx.accounts.emitter.key.as_ref(),
+            &[nonce],
+        ];
+
+        // Wrap seeds in a signer list.
+        let signer = &[&seeds[..]];
+
+        // Create account using generated data.
+        solana_program::program::invoke_signed(
+            &ix,
+            &[
+                ctx.accounts.emitter.clone(),
+                ctx.accounts.system_program.clone(),
+            ],
+            signer,
+        )?;
         // Deserialize the newly created account into an object.
         ProgramAccount::try_from_init(&ctx.accounts.message)?
     };
 
-    // Do any initialization here.
+    // Initialize Message data.
+    message.submission_time = ctx.accounts.clock.unix_timestamp as u32;
+    message.emitter_chain = Chain::Solana;
+    message.emitter_address = ctx.accounts.emitter.key.to_bytes();
 
     // Manually persist changes since we manually created the account.
     message.exit(ctx.program_id)?;

solana/anchor-bridge/programs/anchor-bridge/src/lib.rs

@@ -122,7 +122,7 @@ pub mod anchor_bridge {
             )
         }
 
-        pub fn publish_message(&mut self, ctx: Context<PublishMessage>, data: PublishMessageData) -> Result<()> {
+        pub fn publish_message(&mut self, ctx: Context<PublishMessage>, data: PublishMessageData, nonce: u8) -> Result<()> {
             // Sysvar trait not implemented for Instructions by sdk, so manual check required.  See
             // the VerifySig struct for more info.
             if *ctx.accounts.instructions.key != solana_program::sysvar::instructions::id() {
@@ -132,6 +132,7 @@ pub mod anchor_bridge {
             api::publish_message(
                 self,
                 ctx,
+                nonce,
             )
         }