pgp.rs

fn gpg(args: ~[str]) -> { status: int, out: str, err: str } {
    ret run::program_output("gpg", args);
}

fn signing_key() -> str {
    "
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: SKS 1.1.0

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=2z6P
-----END PGP PUBLIC KEY BLOCK-----
"
}

fn signing_key_fp() -> str {
    "FE79 EDB0 3DEF B0D8 27D2  6C41 0B2D 6A28 3033 6376"
}

fn supported() -> bool {
    let r = gpg(~["--version"]);
    r.status == 0
}

fn init(root: str) {
    let p = path::connect(root, "gpg");
    if !os::path_is_dir(p) {
        os::make_dir(p, 0x1c0i32);
        let p = run::start_program("gpg", ~["--homedir", p, "--import"]);
        p.input().write_str(signing_key());
        let s = p.finish();
        if s != 0 {
            fail "pgp init failed";
        }
    }
}

fn add(root: str, key: str) {
    let path = path::connect(root, "gpg");
    let p =
        run::program_output("gpg", ~["--homedir", path, "--import", key]);
    if p.status != 0 {
        fail "pgp add failed: " + p.out;
    }
}

fn verify(root: str, data: str, sig: str, keyfp: str) -> bool {
    let path = path::connect(root, "gpg");
    let p = gpg(~["--homedir", path, "--with-fingerprint", "--verify", sig,
                 data]);
    let res = "Primary key fingerprint: " + keyfp;
    for str::split_char(p.err, '\n').each |line| {
        if line == res { ret true; }
    }
    ret false;
}