feat(task-processor): add ITS message handling (#5)

* feat(task-processor): add ITS message handling

ITS messages, just like governance ones are somewhat special and need
separate logic to handle them.

Signed-off-by: Guilherme Felipe da Silva <gfsilva.eng@gmail.com>

* fix(deny): ignore its-instruction-builder license

Signed-off-by: Guilherme Felipe da Silva <gfsilva.eng@gmail.com>

---------

Signed-off-by: Guilherme Felipe da Silva <gfsilva.eng@gmail.com>

Cargo.toml

@@ -80,13 +80,14 @@ relayer-amplifier-state = { git = "https://github.com/eigerco/axelar-relayer-cor
 core-common-serde-utils = { git = "https://github.com/eigerco/axelar-relayer-core.git", package = "common-serde-utils", branch = "main" }
 
 # Solana Gateway
-axelar-solana-gateway = { git = "https://github.com/eigerco/solana-axelar.git", rev = "e212e33", features = ["no-entrypoint"] }
-axelar-solana-its = { git = "https://github.com/eigerco/solana-axelar.git", rev = "e212e33", features = ["no-entrypoint"] }
-axelar-solana-governance = { git = "https://github.com/eigerco/solana-axelar.git", rev = "e212e33", features = ["no-entrypoint"] }
-gateway-event-stack = { git = "https://github.com/eigerco/solana-axelar.git", rev = "e212e33" }
-axelar-solana-encoding = { git = "https://github.com/eigerco/solana-axelar.git", rev = "e212e33" }
-axelar-message-primitives = { git = "https://github.com/eigerco/solana-axelar.git", rev = "e212e33" }
-axelar-executable = { git = "https://github.com/eigerco/solana-axelar.git", rev = "e212e33" }
+axelar-solana-gateway = { git = "https://github.com/eigerco/solana-axelar.git", rev = "f065eda", features = ["no-entrypoint"] }
+axelar-solana-its = { git = "https://github.com/eigerco/solana-axelar.git", rev = "f065eda", features = ["no-entrypoint"] }
+axelar-solana-governance = { git = "https://github.com/eigerco/solana-axelar.git", rev = "f065eda", features = ["no-entrypoint"] }
+gateway-event-stack = { git = "https://github.com/eigerco/solana-axelar.git", rev = "f065eda" }
+axelar-solana-encoding = { git = "https://github.com/eigerco/solana-axelar.git", rev = "f065eda" }
+axelar-message-primitives = { git = "https://github.com/eigerco/solana-axelar.git", rev = "f065eda" }
+axelar-executable = { git = "https://github.com/eigerco/solana-axelar.git", rev = "f065eda" }
+its-instruction-builder = { git = "https://github.com/eigerco/solana-axelar.git", rev = "f065eda" }
 
 # CLI
 clap = { version = "4", features = ["derive"] }

crates/solana-gateway-task-processor/Cargo.toml

@@ -28,6 +28,7 @@ effective-tx-sender.workspace = true
 axelar-executable.workspace = true
 num-traits.workspace = true
 relayer-amplifier-state.workspace = true
+its-instruction-builder.workspace = true
 
 [dev-dependencies]
 serde_json.workspace = true

crates/solana-gateway-task-processor/src/component.rs

@@ -202,8 +202,16 @@ async fn execute_task(
     let destination_address = message.destination_address.parse::<Pubkey>()?;
     match destination_address {
         axelar_solana_its::ID => {
-            // todo ITS specific handling
-            tracing::error!("ITS program not yet supported");
+            let ix = its_instruction_builder::build_its_gmp_instruction(
+                signer,
+                gateway_incoming_message_pda,
+                message,
+                payload,
+                solana_rpc_client,
+            )
+            .await?;
+
+            send_tx(solana_rpc_client, keypair, ix).await?;
         }
         axelar_solana_governance::ID => {
             // todo Governance specific handling

deny.toml

@@ -182,6 +182,10 @@ license-files = []
 crate = "axelar-executable"
 expression = "MIT"
 license-files = []
+[[licenses.clarify]]
+crate = "its-instruction-builder"
+expression = "MIT"
+license-files = []
 
 [[licenses.clarify]]
 # The package spec the clarification applies to