feat: integrate BIP 353 dns payment instructions

Author: sdmg15

Cargo.lock

@@ -37,6 +37,7 @@ shlex = {  version = "1.3.0", optional = true }
 payjoin = { version = "=1.0.0-rc.1", features = ["v1", "v2", "io", "_test-utils"], optional = true}
 reqwest = { version = "0.13.2", default-features = false, optional = true }
 url = { version = "2.5.8", optional = true }
+bitcoin-payment-instructions = { version = "0.7.0", optional = true}
 
 [features]
 default = ["repl", "sqlite"]
@@ -52,7 +53,8 @@ redb = ["bdk_redb"]
 cbf = ["bdk_kyoto", "_payjoin-dependencies"]
 electrum = ["bdk_electrum", "_payjoin-dependencies"]
 esplora = ["bdk_esplora", "_payjoin-dependencies"]
-rpc = ["bdk_bitcoind_rpc", "_payjoin-dependencies"] 
+rpc = ["bdk_bitcoind_rpc", "_payjoin-dependencies"]
+dns_payment = ["bitcoin-payment-instructions"] 
 
 # Internal features
 _payjoin-dependencies = ["payjoin", "reqwest", "url"]

Cargo.toml

@@ -13,13 +13,16 @@
 //! All subcommands are defined in the below enums.
 
 #![allow(clippy::large_enum_variant)]
+
 use bdk_wallet::bitcoin::{
     Address, Network, OutPoint, ScriptBuf,
     bip32::{DerivationPath, Xpriv},
 };
 use clap::{Args, Parser, Subcommand, ValueEnum, value_parser};
 use clap_complete::Shell;
 
+#[cfg(feature = "dns_payment")]
+use crate::utils::parse_dns_recipient;
 #[cfg(any(feature = "electrum", feature = "esplora", feature = "rpc"))]
 use crate::utils::parse_proxy_auth;
 use crate::utils::{parse_address, parse_outpoint, parse_recipient};
@@ -182,6 +185,16 @@ pub enum CliSubCommand {
         #[arg(value_enum)]
         shell: Shell,
     },
+
+    #[cfg(feature = "dns_payment")]
+    /// Resolves BIP-353 DNS payment instructions for a human-readable name.
+    ResolveDnsRecipient {
+        /// Human-readable name (e.g. user@domain.com)
+        hrn: String,
+        /// DNS resolver address
+        #[arg(long, default_value = "8.8.8.8")]
+        resolver: String,
+    },
 }
 
 /// Wallet operation subcommands.
@@ -354,6 +367,14 @@ pub enum OfflineWalletSubCommand {
         // Address and amount parsing is done at run time in handler function.
         #[arg(env = "ADDRESS:SAT", long = "to", required = true, value_parser = parse_recipient)]
         recipients: Vec<(ScriptBuf, u64)>,
+        #[cfg(feature = "dns_payment")]
+        /// Adds DNS recipients to the transaction
+        #[arg(long = "to_dns", value_parser = parse_dns_recipient)]
+        dns_recipients: Vec<(String, u64)>,
+        #[cfg(feature = "dns_payment")]
+        /// Custom resolver DNS IP to be used for resolution.
+        #[arg(long = "dns_resolver", default_value = "8.8.8.8:53")]
+        dns_resolver: String,
         /// Sends all the funds (or all the selected utxos). Requires only one recipient with value 0.
         #[arg(long = "send_all", short = 'a')]
         send_all: bool,