Function generate_code_challenge

crates/chat-cli/src/auth/pkce.rs:469–477

Base64 URL encoded sha256 hash of the code verifier. Reference: https://datatracker.ietf.org/doc/html/rfc7636#section-4.2

(code_verifier: &str)

///
/// Reference: https://datatracker.ietf.org/doc/html/rfc7636#section-4.2
fn generate_code_challenge(code_verifier: &str) -> String {
    use sha2::{
        Digest,
        Sha256,
    };
    let mut hasher = Sha256::new();
    hasher.update(code_verifier);
    URL_SAFE.encode(hasher.finalize()).replace('=', "")
}

#[cfg(test)]
mod tests {