rpgmv_tool/command/
encrypt_png.rs

1use anyhow::Context;
2use clap::Parser;
3use std::fs::File;
4use std::io::BufReader;
5use std::io::BufWriter;
6use std::io::Write;
7use std::path::PathBuf;
8
9#[derive(Debug, Parser)]
10#[command(about = "Encrypt a png")]
11pub struct Options {
12    #[arg(long = "input", short = 'i', help = "A png to encrypt")]
13    pub input: PathBuf,
14
15    #[arg(long = "output", short = 'o', help = "The output file")]
16    pub output: PathBuf,
17
18    #[arg(long = "key", short = 'k', help = "The key, as hex")]
19    pub key: String,
20}
21
22pub fn exec(options: Options) -> anyhow::Result<()> {
23    let input = File::open(&options.input).with_context(|| {
24        format!(
25            "failed to open \"{}\" for reading",
26            &options.input.display()
27        )
28    })?;
29    let mut input = BufReader::new(input);
30
31    let output = File::create(&options.output).with_context(|| {
32        format!(
33            "failed to open \"{}\" for writing",
34            &options.output.display()
35        )
36    })?;
37    let mut output = BufWriter::new(output);
38
39    let mut key = [0; 16];
40    base16ct::mixed::decode(&options.key, &mut key)
41        .with_context(|| format!("failed to decode hex \"{}\"", options.key))?;
42
43    let mut writer = rpgmvp::Writer::new(&mut output, key);
44    writer.write_header()?;
45    std::io::copy(&mut input, &mut writer)?;
46
47    output.flush().context("failed to flush")?;
48    let output = output.into_inner()?;
49    output.sync_all()?;
50
51    Ok(())
52}
rpgmv_tool/command/encrypt_png.rs

rpgmv_tool/command/
encrypt_png.rs
