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Vivian 2023-12-15 21:26:29 +01:00
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.gitignore vendored Normal file
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/target
.idea/

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Cargo.lock generated Normal file
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Cargo.toml Normal file
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[package]
name = "gnome-autounlock-keyring"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
color-eyre = "0.6.2"

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src/main.rs Normal file
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use color_eyre::eyre::{bail, eyre, WrapErr};
use std::env;
use std::io::{Read, Write};
use std::os::unix::net::UnixStream;
use std::path::{Path, PathBuf};
fn get_control_socket() -> Option<PathBuf> {
let gnome_var = env::var("GNOME_KEYRING_CONTROL")
.ok()
.map(|el| PathBuf::from(el).join("control"))
.and_then(|el| el.exists().then_some(el));
let xdg_var = env::var("XDG_RUNTIME_DIR")
.ok()
.map(|el| PathBuf::from(el).join("keyring").join("control"))
.and_then(|el| el.exists().then_some(el));
gnome_var.or(xdg_var)
}
enum ControlOp {
Initialize = 0,
Unlock = 1,
Change = 2,
Quit = 4,
}
impl ControlOp {
fn to_bytes(self) -> [u8; 4] {
(self as u32).to_be_bytes()
}
}
#[derive(Debug)]
enum ControlResult {
Ok = 0,
Denied = 1,
Failed = 2,
NoDaemon = 3,
}
impl ControlResult {
fn from_u32(n: u32) -> Option<ControlResult> {
match n {
0 => Some(ControlResult::Ok),
1 => Some(ControlResult::Denied),
2 => Some(ControlResult::Failed),
3 => Some(ControlResult::NoDaemon),
_ => None,
}
}
}
fn unlock_keyring(password: &str) -> color_eyre::Result<ControlResult> {
let socket = get_control_socket()
.ok_or_else(|| eyre!("Could not find gnome keyring control socket path"))?;
let mut stream = UnixStream::connect(socket)
.wrap_err("Could not connect to the gnome keyring unix socket")?;
let ret = stream
.write(&[0])
.wrap_err("could not write credential byte")?;
if ret != 1 {
bail!("writing cred byte failed")
}
// oplen is
// 8 = packet size + op code
// 4 size of length of pw byte
let oplen: u32 = 8 + 4 + password.len() as u32;
// write length
let ret = stream
.write(&oplen.to_be_bytes())
.wrap_err("could not write oplen")?;
if ret != 4 {
bail!("writing oplen failed")
}
// write unlock
let ret = stream
.write(&ControlOp::Unlock.to_bytes())
.wrap_err("could not write unlock")?;
if ret != 4 {
bail!("writing unlock failed")
}
// write pw len
let ret = stream
.write(&(password.len() as u32).to_be_bytes())
.wrap_err("could not write password length")?;
if ret != 4 {
bail!("writing pwlen failed")
}
let mut pw_buf = password.as_bytes();
while !pw_buf.is_empty() {
let ret = stream.write(pw_buf).wrap_err("writing password failed")?;
pw_buf = &pw_buf[ret..]
}
let mut buf = [0; 4];
let val = stream
.read(&mut buf)
.wrap_err("could not read response length")?;
if val != 4 {
bail!("invalid response length length")
}
let len = u32::from_be_bytes(buf);
if len != 8 {
bail!("invalid response length");
}
let val = stream.read(&mut buf).wrap_err("could not read response")?;
if val != 4 {
bail!("invalid response length (2)")
}
let resp = u32::from_be_bytes(buf);
let code = ControlResult::from_u32(resp).ok_or_else(|| eyre!("invalid resp"))?;
Ok(code)
}
fn main() -> color_eyre::Result<()> {
color_eyre::install().unwrap();
let res = unlock_keyring("example")?;
dbg!(res);
Ok(())
}