From 9ec3d08c30f8004b25293d66b80597fc0b29bfc7 Mon Sep 17 00:00:00 2001
From: hikari <mps.parsa.mps@gmail.com>
Date: Thu, 22 Aug 2024 16:11:39 +0330
Subject: [PATCH] change to rust

---
 .gitignore       |   1 +
 Cargo.lock       | 604 +++++++++++++++++++++++++++++++++++++++++++++++
 Cargo.toml       |  14 ++
 PKGBUILD         |  21 --
 makepkg/PKGBUILD |  23 ++
 src/main.ab      |  22 --
 src/main.rs      | 114 +++++++++
 7 files changed, 756 insertions(+), 43 deletions(-)
 create mode 100644 Cargo.lock
 create mode 100644 Cargo.toml
 delete mode 100644 PKGBUILD
 create mode 100644 makepkg/PKGBUILD
 delete mode 100644 src/main.ab
 create mode 100644 src/main.rs

diff --git a/.gitignore b/.gitignore
index 3dc7311..1c6c05f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 *.tar.zst
 penc
 pkg
+/target
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..5eb7a19
--- /dev/null
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+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "zstd"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fcf2b778a664581e31e389454a7072dab1647606d44f7feea22cd5abb9c9f3f9"
+dependencies = [
+ "zstd-safe",
+]
+
+[[package]]
+name = "zstd-safe"
+version = "7.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "54a3ab4db68cea366acc5c897c7b4d4d1b8994a9cd6e6f841f8964566a419059"
+dependencies = [
+ "zstd-sys",
+]
+
+[[package]]
+name = "zstd-sys"
+version = "2.0.13+zstd.1.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "38ff0f21cfee8f97d94cef41359e0c89aa6113028ab0291aa8ca0038995a95aa"
+dependencies = [
+ "cc",
+ "pkg-config",
+]
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..b6762d0
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "penc"
+version = "1.0.2"
+edition = "2021"
+
+[dependencies]
+tar = "0.4.41"
+walkdir = "2.5.0"
+zstd = "0.13.2"
+aes-gcm = "0.10"
+aes = "0.8"
+rand = "0.8"
+sha2 = "0.10.8"
+hkdf = "0.12.4"
diff --git a/PKGBUILD b/PKGBUILD
deleted file mode 100644
index 6abc35a..0000000
--- a/PKGBUILD
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/usr/bin/env bash
-
-pkgname=penc
-pkgver=1.0.1
-pkgrel=1
-pkgdesc="parch linux encrypted compress"
-arch=("any")
-url="https://parchlinux.com/"
-license=("GPL")
-conflict=("${pkgname%}")
-depends=("zstd" "tar" "openssl" "bc")
-build(){
-    cd ${srcdir}
-    amber main.ab penc
-}
-package() {
-    cd "$srcdir"
-    install -Dm755 penc "$pkgdir/usr/bin/penc"
-
-}
-
diff --git a/makepkg/PKGBUILD b/makepkg/PKGBUILD
new file mode 100644
index 0000000..34475d6
--- /dev/null
+++ b/makepkg/PKGBUILD
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+pkgname=penc
+pkgver=1.0.1
+pkgrel=1
+pkgdesc="parch linux encrypted compress"
+arch=('x86_64')
+url="https://git.parchlinux.com/applications/penc"
+license=('GPL-3')
+depends=('gcc-libs')
+makedepends=('git' 'rust')
+source=("$pkgname::git+$url#branch=main")
+md5sums=('SKIP')
+
+build() {
+  cd "$srcdir/$pkgname"
+  cargo build --release
+}
+
+package() {
+  cd "$srcdir/$pkgname"
+  # install binary
+  install -Dm755 "target/release/$pkgname" "$pkgdir/usr/bin/penc"
+}
\ No newline at end of file
diff --git a/src/main.ab b/src/main.ab
deleted file mode 100644
index 70b7910..0000000
--- a/src/main.ab
+++ /dev/null
@@ -1,22 +0,0 @@
-import * from "std"
-main(args)
-{
-    if len(args)==3 :
-        if {
-            args[0] == "e"{
-                $tar cv {args[1]} | openssl enc -e -aes256 -iter 12 -pass "pass:{args[2]}"  | zstd -19 --threads=6  > file.penc$ failed{
-                    echo "error in encrypt"
-                    exit(0)
-                }
-                echo "you can rename file.penc to enything"
-            }
-            args[0]=="d":
-            $cat {args[1]} | zstd -d | openssl enc -d -aes256 -iter 12 -pass "pass:{args[2]}" | tar xvf -$ failed {
-                echo "Failed to decrypt file"}
-            else:
-                echo "wrong input"
-        }
-    else:
-        echo "args be need like \npenc \{e,d\} <input> <pass>"
-    
-}
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..329d929
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,114 @@
+use std::error::Error;
+use std::fs::File;
+use std::io::{self,Cursor, Read, Write};
+use std::path::Path;
+use aes::cipher::generic_array::GenericArray;
+use hkdf::Hkdf;
+use tar::{Archive, Builder};
+use walkdir::WalkDir;
+use aes_gcm::aead::{Aead, KeyInit, OsRng};
+use aes_gcm::{Aes256Gcm,Nonce}; // Or `Aes128Gcm`
+use aes_gcm::aead::rand_core::RngCore;
+use std::env;
+use sha2::Sha256;
+use zstd::stream::{decode_all,encode_all};
+
+
+fn main() -> io::Result<()> {
+    let args: Vec<String> = env::args().collect();
+    let program_name = &args[0];
+    if args.len() == 4 {
+        let mut buffer: Vec<u8>=Vec::new();
+        match args[1].clone().as_str() {
+            "e" =>{
+                let _r = tar_dir(&args[2],&mut buffer);
+                print!("write password:");
+                io::stdout().flush().unwrap();
+                let mut password=String::new();
+                io::stdin().read_line(&mut password)?;
+                let _r=encrypt(&mut buffer,&password);
+                let buffer=encode_all(&buffer[..],19)?;
+                let _r = File::create(args[3].clone().as_str())?.write_all(&buffer);
+                println!("you can find file at:{}",args[3].clone())
+            },
+            "d"=>{
+                let _r=File::open(args[2].clone().as_str()).unwrap().read_to_end(&mut buffer);
+                let mut buffer=decode_all(&buffer[..]).unwrap();
+                print!("write password:");
+                io::stdout().flush().unwrap();
+                let mut password=String::new();
+                io::stdin().read_line(&mut password)?;
+                let _r=decrypt(&mut buffer, &password).unwrap();
+                untar(&mut buffer,&args[3].as_str())
+            },
+            _=>{
+                print!("wrong parameter");
+            }
+        }
+      
+    } else {
+        println!("use program like this\n{} e/d input output",program_name);
+    }
+
+    Ok(())
+}
+fn tar_dir(dirname: &str, buffer: &mut Vec<u8>) -> io::Result<()> {
+    let pwd = env::current_dir()?;
+    let mut tar_builder = Builder::new(buffer);
+    for entry in WalkDir::new(dirname) {
+        let entry = entry?;
+        let path = entry.path();
+        let relative_path = path.strip_prefix(&pwd).unwrap_or(path);
+        if relative_path.as_os_str().is_empty() {
+            continue;
+        }
+
+        if path.is_file() {
+            tar_builder.append_path_with_name(path, relative_path)?;
+        } else if path.is_dir() {
+            tar_builder.append_dir(relative_path, path)?;
+        }
+    }
+    tar_builder.finish()?;
+
+    Ok(())
+}
+fn untar(buffer: &mut Vec<u8>,output:&str) {
+    let path=Path::new(output);
+    let cursor = Cursor::new(buffer);
+    let mut archive = Archive::new(Box::new(cursor));
+    let _r=archive.unpack(path);
+}
+fn derive_key(key: &str) -> [u8; 32] {
+    let hk = Hkdf::<Sha256>::new(None, key.as_bytes());
+    let mut okm = [0u8; 32];
+    hk.expand(&[], &mut okm)
+        .expect("32 bytes is a valid length for HKDF output");
+    okm
+}
+fn encrypt(buffer: &mut Vec<u8>, password: &str) -> Result<(), Box<dyn Error>> {
+    let key = derive_key(password);
+    let cipher = Aes256Gcm::new(GenericArray::from_slice(&key));
+    let mut nonce = [0u8; 12];
+    OsRng.fill_bytes(&mut nonce);
+    let ciphertext = cipher
+        .encrypt(Nonce::from_slice(&nonce), buffer.as_ref())
+        .map_err(|e| format!("Encryption failed: {}", e))?;
+    buffer.clear();
+    buffer.extend_from_slice(&nonce);
+    buffer.extend_from_slice(&ciphertext);
+    Ok(())
+}
+
+fn decrypt(buffer: &mut Vec<u8>, password: &str) -> Result<(), Box<dyn Error>> {
+    let key = derive_key(password);
+    let cipher = Aes256Gcm::new(GenericArray::from_slice(&key));
+    let nonce = Nonce::from_slice(&buffer[..12]);
+    let ciphertext = &buffer[12..];
+    let plaintext = cipher
+        .decrypt(nonce, ciphertext)
+        .map_err(|e| format!("Decryption failed: {}", e))?;
+    buffer.clear();
+    buffer.extend_from_slice(&plaintext);
+    Ok(())
+}