solana: add tbtc metadata creation

keep-network · Aug 4, 2023 · c59d7c1 · c59d7c1
1 parent 2900c63
commit c59d7c1
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Showing 4 changed files with 181 additions and 5 deletions.
diff --git a/cross-chain/solana/Cargo.lock b/cross-chain/solana/Cargo.lock
diff --git a/cross-chain/solana/programs/tbtc/Cargo.toml b/cross-chain/solana/programs/tbtc/Cargo.toml
@@ -19,5 +19,8 @@ cpi = ["no-entrypoint"]
 
 [dependencies]
 anchor-lang = { version = "=0.28.0", features = ["derive", "init-if-needed"] }
-anchor-spl = "=0.28.0"
-solana-program = "=1.14.20"
+anchor-spl = { version = "=0.28.0", features = ["metadata"] }
+
+solana-program = "1.14.20"
+
+mpl-token-metadata = "1.13.1"
diff --git a/cross-chain/solana/programs/tbtc/src/processor/admin/initialize.rs b/cross-chain/solana/programs/tbtc/src/processor/admin/initialize.rs
@@ -3,7 +3,7 @@ use crate::{
     state::{Config, Guardians, Minters},
 };
 use anchor_lang::prelude::*;
-use anchor_spl::token;
+use anchor_spl::{metadata, token};
 
 #[derive(Accounts)]
 pub struct Initialize<'info> {
@@ -49,11 +49,20 @@ pub struct Initialize<'info> {
     #[account(mut)]
     authority: Signer<'info>,
 
+    /// CHECK: This account is needed for the MPL Token Metadata program.
+    #[account(mut)]
+    tbtc_metadata: UncheckedAccount<'info>,
+
+    /// CHECK: This account is needed for the MPL Token Metadata program.
+    rent: UncheckedAccount<'info>,
+
+    mpl_token_metadata_program: Program<'info, metadata::Metadata>,
     token_program: Program<'info, token::Token>,
     system_program: Program<'info, System>,
 }
 
 pub fn initialize(ctx: Context<Initialize>) -> Result<()> {
+    // Set Config account data.
     ctx.accounts.config.set_inner(Config {
         bump: ctx.bumps["config"],
         authority: ctx.accounts.authority.key(),
@@ -65,15 +74,44 @@ pub fn initialize(ctx: Context<Initialize>) -> Result<()> {
         paused: false,
     });
 
+    // Set Guardians account data with empty vec.
     ctx.accounts.guardians.set_inner(Guardians {
         bump: ctx.bumps["guardians"],
         keys: Vec::new(),
     });
 
+    // Set Guardians account data with empty vec.
     ctx.accounts.minters.set_inner(Minters {
         bump: ctx.bumps["minters"],
         keys: Vec::new(),
     });
 
-    Ok(())
+    // Create metadata for tBTC.
+    metadata::create_metadata_accounts_v3(
+        CpiContext::new_with_signer(
+            ctx.accounts.mpl_token_metadata_program.to_account_info(),
+            metadata::CreateMetadataAccountsV3 {
+                metadata: ctx.accounts.tbtc_metadata.to_account_info(),
+                mint: ctx.accounts.mint.to_account_info(),
+                mint_authority: ctx.accounts.config.to_account_info(),
+                payer: ctx.accounts.authority.to_account_info(),
+                update_authority: ctx.accounts.config.to_account_info(),
+                system_program: ctx.accounts.system_program.to_account_info(),
+                rent: ctx.accounts.rent.to_account_info(),
+            },
+            &[&[Config::SEED_PREFIX, &[ctx.bumps["config"]]]],
+        ),
+        mpl_token_metadata::state::DataV2 {
+            symbol: "tBTC".to_string(),
+            name: "tBTC v2".to_string(),
+            uri: "".to_string(),
+            seller_fee_basis_points: 0,
+            creators: None,
+            collection: None,
+            uses: None,
+        },
+        true,
+        true,
+        None,
+    )
 }
diff --git a/cross-chain/solana/programs/wormhole-gateway/src/processor/send_tbtc/gateway.rs b/cross-chain/solana/programs/wormhole-gateway/src/processor/send_tbtc/gateway.rs
@@ -175,6 +175,7 @@ pub fn send_tbtc_gateway(ctx: Context<SendTbtcGateway>, args: SendTbtcGatewayArg
                 wormhole_program: ctx.accounts.core_bridge_program.to_account_info(),
             },
             &[
+                &[Custodian::SEED_PREFIX, &[custodian.bump]],
                 &[
                     token_bridge::SEED_PREFIX_SENDER,
                     &[ctx.accounts.custodian.token_bridge_sender_bump],
@@ -184,7 +185,6 @@ pub fn send_tbtc_gateway(ctx: Context<SendTbtcGateway>, args: SendTbtcGatewayArg
                     &ctx.accounts.core_emitter_sequence.value().to_le_bytes(),
                     &[ctx.bumps["core_message"]],
                 ],
-                &[Custodian::SEED_PREFIX, &[custodian.bump]],
             ],
         ),
         nonce,