CLI: Support dumping the TX message in sign-only mode

cli-output/src/cli_output.rs

@@ -1319,6 +1319,8 @@ impl fmt::Display for CliInflation {
 #[serde(rename_all = "camelCase")]
 pub struct CliSignOnlyData {
     pub blockhash: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub message: Option<String>,
     #[serde(skip_serializing_if = "Vec::is_empty", default)]
     pub signers: Vec<String>,
     #[serde(skip_serializing_if = "Vec::is_empty", default)]
@@ -1334,6 +1336,9 @@ impl fmt::Display for CliSignOnlyData {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         writeln!(f)?;
         writeln_name_value(f, "Blockhash:", &self.blockhash)?;
+        if let Some(message) = self.message.as_ref() {
+            writeln_name_value(f, "Transaction Message:", message)?;
+        }
         if !self.signers.is_empty() {
             writeln!(f, "{}", style("Signers (Pubkey=Signature):").bold())?;
             for signer in self.signers.iter() {
@@ -1696,9 +1701,22 @@ impl fmt::Display for CliUpgradeableBuffer {
     }
 }
 
+#[derive(Debug, Default)]
+pub struct ReturnSignersConfig {
+    pub dump_transaction_message: bool,
+}
+
 pub fn return_signers(
     tx: &Transaction,
     output_format: &OutputFormat,
+) -> Result<String, Box<dyn std::error::Error>> {
+    return_signers_with_config(tx, output_format, &ReturnSignersConfig::default())
+}
+
+pub fn return_signers_with_config(
+    tx: &Transaction,
+    output_format: &OutputFormat,
+    config: &ReturnSignersConfig,
 ) -> Result<String, Box<dyn std::error::Error>> {
     let verify_results = tx.verify_with_results();
     let mut signers = Vec::new();
@@ -1717,9 +1735,16 @@ pub fn return_signers(
                 bad_sig.push(key.to_string());
             }
         });
+    let message = if config.dump_transaction_message {
+        let message_data = tx.message_data();
+        Some(base64::encode(&message_data))
+    } else {
+        None
+    };
 
     let cli_command = CliSignOnlyData {
         blockhash: tx.message.recent_blockhash.to_string(),
+        message,
         signers,
         absent,
         bad_sig,
@@ -1774,8 +1799,14 @@ pub fn parse_sign_only_reply_string(reply: &str) -> SignOnly {
             .collect();
     }
 
+    let message = object
+        .get("message")
+        .and_then(|o| o.as_str())
+        .map(|m| m.to_string());
+
     SignOnly {
         blockhash,
+        message,
         present_signers,
         absent_signers,
         bad_signers,
@@ -2054,6 +2085,25 @@ mod tests {
         let res = return_signers(&tx, &OutputFormat::JsonCompact).unwrap();
         let sign_only = parse_sign_only_reply_string(&res);
         assert_eq!(sign_only.blockhash, blockhash);
+        assert_eq!(sign_only.message, None);
+        assert_eq!(sign_only.present_signers[0].0, present.pubkey());
+        assert_eq!(sign_only.absent_signers[0], absent.pubkey());
+        assert_eq!(sign_only.bad_signers[0], bad.pubkey());
+
+        let expected_msg = "AwECBwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDgTl3Dqh9\
+            F19Wo1Rmw0x+zMuNipG07jeiXfYPW4/Js5QEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQE\
+            BAQEBAYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGBgYGBQUFBQUFBQUFBQUFBQUFBQUF\
+            BQUFBQUFBQUFBQUFBQUGp9UXGSxWjuCKhF9z0peIzwNcMUWyGrNE2AYuqUAAAAAAAAAAAAAA\
+            AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABwcHBwcHBwcHBwcHBwcHBwcHBwcHBwcHBwcHBwcH\
+            BwcCBgMDBQIEBAAAAAYCAQQMAgAAACoAAAAAAAAA"
+            .to_string();
+        let config = ReturnSignersConfig {
+            dump_transaction_message: true,
+        };
+        let res = return_signers_with_config(&tx, &OutputFormat::JsonCompact, &config).unwrap();
+        let sign_only = parse_sign_only_reply_string(&res);
+        assert_eq!(sign_only.blockhash, blockhash);
+        assert_eq!(sign_only.message, Some(expected_msg));
         assert_eq!(sign_only.present_signers[0].0, present.pubkey());
         assert_eq!(sign_only.absent_signers[0], absent.pubkey());
         assert_eq!(sign_only.bad_signers[0], bad.pubkey());