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https://doc.rust-lang.org/cargo/reference/manifest.html + +[dependencies] +color-eyre = "0.6.2" \ No newline at end of file diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..870ca4b --- /dev/null +++ b/src/main.rs @@ -0,0 +1,139 @@ +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 { + 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 { + 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 { + 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(()) +}