From f6dac0b2fc426327222d8b2e7f09768a238283e5 Mon Sep 17 00:00:00 2001 From: h7x4 Date: Sun, 11 Feb 2024 19:44:45 +0100 Subject: [PATCH] Initial commit --- .envrc | 1 + .gitignore | 3 + Cargo.lock | 630 ++++++++++++++++++++++++++++++++++++++++++++++++++++ Cargo.toml | 14 ++ LICENSE | 21 ++ README.md | 6 + flake.lock | 27 +++ flake.nix | 42 ++++ src/main.rs | 128 +++++++++++ 9 files changed, 872 insertions(+) create mode 100644 .envrc create mode 100644 .gitignore create mode 100644 Cargo.lock create mode 100644 Cargo.toml create mode 100644 LICENSE create mode 100644 README.md create mode 100644 flake.lock create mode 100644 flake.nix create mode 100644 src/main.rs diff --git a/.envrc b/.envrc new file mode 100644 index 0000000..3550a30 --- /dev/null +++ b/.envrc @@ -0,0 +1 @@ +use flake diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..75202ef --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +/target +result +.direnv \ No newline at end of file diff --git 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+MIT License + +Copyright (c) 2024 h7x4 + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. \ No newline at end of file diff --git a/README.md b/README.md new file mode 100644 index 0000000..2d98410 --- /dev/null +++ b/README.md @@ -0,0 +1,6 @@ +# polyglot-zip + +This is a small utility that uses [libiconv](https://www.gnu.org/software/libiconv/) to convert filenames within a zipfile. + +It can be useful if a zip has been created on a system that did not use UTF-8 for its filenames. + diff --git a/flake.lock b/flake.lock new file mode 100644 index 0000000..a9185f0 --- /dev/null +++ b/flake.lock @@ -0,0 +1,27 @@ +{ + "nodes": { + "nixpkgs": { + "locked": { + "lastModified": 1707546158, + "narHash": "sha256-nYYJTpzfPMDxI8mzhQsYjIUX+grorqjKEU9Np6Xwy/0=", + "owner": "NixOS", + "repo": "nixpkgs", + "rev": "d934204a0f8d9198e1e4515dd6fec76a139c87f0", + "type": "github" + }, + "original": { + "owner": "NixOS", + "ref": "nixos-unstable", + "repo": "nixpkgs", + "type": "github" + } + }, + "root": { + "inputs": { + "nixpkgs": "nixpkgs" + } + } + }, + "root": "root", + "version": 7 +} diff --git a/flake.nix b/flake.nix new file mode 100644 index 0000000..04da095 --- /dev/null +++ b/flake.nix @@ -0,0 +1,42 @@ +{ + inputs = { + nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable"; + }; + + outputs = { self, nixpkgs }: let + supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ]; + forAllSystems = f: nixpkgs.lib.genAttrs supportedSystems (system: f system nixpkgs.legacyPackages.${system}); + in { + devShells = forAllSystems (system: pkgs: { + default = let + rustPlatform = pkgs.rust.packages.stable.rustPlatform; + in pkgs.mkShell { + packages = with pkgs; [ + cargo + clippy + rust-analyzer + rustc + rustfmt + ]; + RUST_SRC_PATH = "${rustPlatform.rustLibSrc}"; + }; + }); + + packages = (forAllSystems (system: pkgs: { + default = pkgs.rustPlatform.buildRustPackage rec { + pname = "polyglot-zip"; + version = (pkgs.lib.importTOML ./Cargo.toml).package.version; + src = ./.; + + cargoSha256 = "sha256-3oHEH6DlooWg0sQ+oIvsYoU6FAs7gP9PRwv1xJjGDYA="; + + meta = with pkgs.lib; { + description = "A tool to convert and extract zip files with non-UTF-8 contents"; + homepage = "https://github.com/h7x4/polyglot-zip"; + license = licenses.mit; + platforms = supportedSystems; + }; + }; + })); + }; +} diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..816387a --- /dev/null +++ b/src/main.rs @@ -0,0 +1,128 @@ +use anyhow::Context; +use clap::{Parser, Subcommand}; +use iconv::decode; +use std::{fs::File, path::PathBuf}; +use zip::{ZipArchive, ZipWriter}; + +/// A small utility to convert the file names in a zip file from one encoding to another. +/// +/// The input encoding is specified as a string, which is passed to the iconv library. +/// The output encoding is always UTF-8. +#[derive(Parser)] +#[clap(name = "polyzip", version, about)] +struct Args { + /// The encoding of the file names in the zip file. + /// A list of supported encodings can be found at https://www.gnu.org/software/libiconv/ + #[arg(index = 1)] + input_encoding: String, + + #[command(subcommand)] + subcommand: Command, +} + +#[derive(Subcommand)] +enum Command { + /// List the converted filenames in the zip file + List { + /// A path to a zip file + #[arg(index = 1)] + file: PathBuf, + }, + + /// Convert the filenames in the zip file and write the result to a new file + Convert { + /// A path to a zip file + #[arg(index = 1)] + file: PathBuf, + + /// Where to put the new zip file + #[arg(short, long)] + output: PathBuf, + }, + + /// Convert the filenames in the zip file in place + ConvertInPlace { + /// A path to a zip file + #[arg(index = 1)] + file: PathBuf, + + /// Whether to create a backup of the original file, with a .bak extension + #[arg(short, long, default_value = "true")] + create_backup: bool, + }, +} + +fn main() -> anyhow::Result<()> { + let args: Args = Args::parse(); + + match args.subcommand { + Command::List { file } => { + let zipfile = File::open(&file).context(format!("Failed to open {:?}", file))?; + list_zip_contents(zipfile, &args.input_encoding)?; + } + Command::Convert { file, output } => { + let zipfile = File::open(&file).context(format!("Failed to open {:?}", file))?; + let new_zipfile = + File::create(&output).context(format!("Failed to create {:?}", output))?; + unzip(zipfile, new_zipfile, &args.input_encoding)?; + } + Command::ConvertInPlace { + file, + create_backup, + } => { + let backup_path = &file.with_extension( + file.extension() + .and_then(|ext| ext.to_str()) + .unwrap_or("") + .to_string() + + ".bak", + ); + std::fs::rename(&file, backup_path)?; + + let zipfile = File::open(&file).context(format!("Failed to open {:?}", file))?; + let new_zipfile = + File::create(&file).context(format!("Failed to create {:?}", file))?; + if let Err(e) = unzip(zipfile, new_zipfile, &args.input_encoding) { + std::fs::rename(backup_path, file)?; + anyhow::bail!(e) + } else if !create_backup { + std::fs::remove_file(backup_path)?; + } + } + } + + Ok(()) +} + +fn list_zip_contents(zipfile: File, input_encoding: &str) -> anyhow::Result<()> { + let mut zip = ZipArchive::new(zipfile)?; + + for i in 0..zip.len() { + let file = zip.by_index(i)?; + let name = file.name_raw(); + match decode(name, input_encoding) { + Ok(converted_name) => { + println!("{} -> {}", String::from_utf8_lossy(name), converted_name) + } + Err(e) => eprintln!("{}: {}", String::from_utf8_lossy(name), e), + } + } + + Ok(()) +} + +fn unzip(zipfile: File, new_zipfile: File, input_encoding: &str) -> anyhow::Result<()> { + let mut zip = ZipArchive::new(zipfile)?; + let mut builder = ZipWriter::new(new_zipfile); + + for i in 0..zip.len() { + let file = zip.by_index(i)?; + let name = file.name_raw().to_vec(); + let converted_name = decode(&name, input_encoding)?; + builder.raw_copy_file_rename(file, converted_name)?; + } + + builder.finish()?; + + Ok(()) +}