From 927350c4b101b01e8dd240ffbc3ff31e65ad4b5d Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Sat, 24 May 2025 10:55:45 +0800
Subject: [PATCH] feat: v0.1.2

---
 Cargo.toml |  2 +-
 src/lib.rs | 36 +++++++++++++++++++++++++++++++++---
 2 files changed, 34 insertions(+), 4 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 2685adb..6400277 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "external-command-rs"
-version = "0.1.1"
+version = "0.1.2"
 edition = "2024"
 authors = ["Hatter Jiang"]
 repository = "https://git.hatter.ink/hatter/external-command-rs"
diff --git a/src/lib.rs b/src/lib.rs
index efb094e..d32934d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,7 +1,7 @@
-use base64::engine::general_purpose::STANDARD;
 use base64::Engine;
-use rust_util::{debugging, opt_result, simple_error, XResult};
-use serde::{de, Deserialize, Serialize};
+use base64::engine::general_purpose::STANDARD;
+use rust_util::{XResult, debugging, opt_result, simple_error};
+use serde::{Deserialize, Serialize, de};
 use serde_json::Value;
 use std::process::{Command, Output};
 
@@ -37,6 +37,36 @@ struct ExternalDhResult {
     pub shared_secret_hex: String,
 }
 
+pub struct ExternalCommand {
+    pub external_command: String,
+    pub parameter: String,
+}
+
+impl ExternalCommand {
+    pub fn new(external_command: String, parameter: String) -> ExternalCommand {
+        ExternalCommand {
+            external_command,
+            parameter,
+        }
+    }
+
+    pub fn spec(&self) -> XResult<ExternalSpecResult> {
+        external_spec(&self.external_command)
+    }
+
+    pub fn public_key(&self) -> XResult<Vec<u8>> {
+        external_public_key(&self.external_command, &self.parameter)
+    }
+
+    pub fn sign(&self, alg: &str, content: &[u8]) -> XResult<Vec<u8>> {
+        external_sign(&self.external_command, &self.parameter, alg, content)
+    }
+
+    pub fn ecdh(&self, ephemera_public_key: &[u8]) -> XResult<Vec<u8>> {
+        external_ecdh(&self.external_command, &self.parameter, ephemera_public_key)
+    }
+}
+
 pub fn external_spec(external_command: &str) -> XResult<ExternalSpecResult> {
     let mut cmd = Command::new(external_command);
     cmd.arg("external_spec");