chabeau 0.7.3

A full-screen terminal chat interface that connects to various AI APIs for real-time conversations
Documentation 
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use crate::core::keyring::KeyringAccessError;
use keyring::Entry;
use serde::{Deserialize, Serialize};

const KEYRING_SERVICE: &str = "chabeau-mcp";
const OAUTH_KEYRING_SERVICE: &str = "chabeau-mcp-oauth";

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct McpOAuthGrant {
    pub access_token: String,
    #[serde(default)]
    pub refresh_token: Option<String>,
    #[serde(default)]
    pub token_type: Option<String>,
    #[serde(default)]
    pub scope: Option<String>,
    #[serde(default)]
    pub expires_at_epoch_s: Option<i64>,
    #[serde(default)]
    pub client_id: Option<String>,
    #[serde(default)]
    pub redirect_uri: Option<String>,
    pub authorization_endpoint: Option<String>,
    pub token_endpoint: Option<String>,
    pub revocation_endpoint: Option<String>,
    pub issuer: Option<String>,
}

#[derive(Debug, Clone, Copy)]
pub struct McpTokenStore {
    use_keyring: bool,
}

impl Default for McpTokenStore {
    fn default() -> Self {
        Self::new()
    }
}

impl McpTokenStore {
    pub fn new() -> Self {
        Self { use_keyring: true }
    }

    pub fn new_with_keyring(use_keyring: bool) -> Self {
        Self { use_keyring }
    }

    pub fn get_token(&self, server_id: &str) -> Result<Option<String>, Box<dyn std::error::Error>> {
        if !self.use_keyring {
            return Ok(None);
        }

        let entry = Entry::new(KEYRING_SERVICE, server_id)?;
        match entry.get_password() {
            Ok(token) => Ok(Some(token)),
            Err(keyring::Error::NoEntry) => Ok(None),
            Err(err) => Err(Box::new(KeyringAccessError::from(err))),
        }
    }

    pub fn set_token(
        &self,
        server_id: &str,
        token: &str,
    ) -> Result<(), Box<dyn std::error::Error>> {
        if !self.use_keyring {
            return Ok(());
        }

        let entry = Entry::new(KEYRING_SERVICE, server_id)?;
        entry
            .set_password(token)
            .map_err(|err| Box::new(KeyringAccessError::from(err)) as Box<dyn std::error::Error>)
    }

    pub fn remove_token(&self, server_id: &str) -> Result<bool, Box<dyn std::error::Error>> {
        if !self.use_keyring {
            return Ok(false);
        }

        let entry = Entry::new(KEYRING_SERVICE, server_id)?;
        match entry.delete_credential() {
            Ok(()) => Ok(true),
            Err(keyring::Error::NoEntry) => Ok(false),
            Err(err) => Err(Box::new(KeyringAccessError::from(err))),
        }
    }

    pub fn get_oauth_grant(
        &self,
        server_id: &str,
    ) -> Result<Option<McpOAuthGrant>, Box<dyn std::error::Error>> {
        if !self.use_keyring {
            return Ok(None);
        }

        let entry = Entry::new(OAUTH_KEYRING_SERVICE, server_id)?;
        match entry.get_password() {
            Ok(raw) => {
                let grant: McpOAuthGrant = serde_json::from_str(&raw)?;
                Ok(Some(grant))
            }
            Err(keyring::Error::NoEntry) => Ok(None),
            Err(err) => Err(Box::new(KeyringAccessError::from(err))),
        }
    }

    pub fn set_oauth_grant(
        &self,
        server_id: &str,
        grant: &McpOAuthGrant,
    ) -> Result<(), Box<dyn std::error::Error>> {
        if !self.use_keyring {
            return Ok(());
        }

        let entry = Entry::new(OAUTH_KEYRING_SERVICE, server_id)?;
        let payload = serde_json::to_string(grant)?;
        entry
            .set_password(&payload)
            .map_err(|err| Box::new(KeyringAccessError::from(err)) as Box<dyn std::error::Error>)
    }

    pub fn remove_oauth_grant(&self, server_id: &str) -> Result<bool, Box<dyn std::error::Error>> {
        if !self.use_keyring {
            return Ok(false);
        }

        let entry = Entry::new(OAUTH_KEYRING_SERVICE, server_id)?;
        match entry.delete_credential() {
            Ok(()) => Ok(true),
            Err(keyring::Error::NoEntry) => Ok(false),
            Err(err) => Err(Box::new(KeyringAccessError::from(err))),
        }
    }
}