rightkit-http 0.1.0

Brand-neutral blocking HTTP client for Right Suite apps: timeouts, retry/backoff with Retry-After, SSE streaming, redacted secrets, and untrusted web-text wrapping.
Documentation 
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//! Secret handling shared by the net crates. `rightkit-secrets` (built in
//! parallel) supplies the production [`SecretStore`] implementation (Keychain /
//! Credential Manager); this crate only defines the interface so net crates do
//! not depend on unfinished code.

use std::collections::HashMap;
use std::fmt;
use std::sync::Mutex;

/// A string that never prints itself.
#[derive(Clone, PartialEq, Eq)]
pub struct Secret(String);

impl Secret {
    pub fn new(value: impl Into<String>) -> Self {
        Secret(value.into())
    }
    /// The only way to read the value. Call at the point of use (header write).
    pub fn expose(&self) -> &str {
        &self.0
    }
    pub fn is_empty(&self) -> bool {
        self.0.is_empty()
    }
}

impl fmt::Debug for Secret {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.write_str("Secret([redacted])")
    }
}

impl fmt::Display for Secret {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.write_str("[redacted]")
    }
}

impl From<String> for Secret {
    fn from(v: String) -> Self {
        Secret(v)
    }
}

#[derive(Debug, Clone, PartialEq, Eq)]
pub struct SecretError(pub String);

impl fmt::Display for SecretError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "secret store: {}", self.0)
    }
}
impl std::error::Error for SecretError {}

/// Service/account keyed secret storage. Implemented by `rightkit-secrets`.
pub trait SecretStore: Send + Sync {
    fn get(&self, service: &str, account: &str) -> Result<Option<Secret>, SecretError>;
    fn set(&self, service: &str, account: &str, value: &Secret) -> Result<(), SecretError>;
    fn delete(&self, service: &str, account: &str) -> Result<(), SecretError>;
}

/// In-memory store for tests and ephemeral sessions.
#[derive(Default)]
pub struct MemorySecretStore {
    inner: Mutex<HashMap<(String, String), Secret>>,
}

impl MemorySecretStore {
    pub fn new() -> Self {
        Self::default()
    }
}

impl SecretStore for MemorySecretStore {
    fn get(&self, service: &str, account: &str) -> Result<Option<Secret>, SecretError> {
        Ok(self
            .inner
            .lock()
            .unwrap()
            .get(&(service.to_string(), account.to_string()))
            .cloned())
    }
    fn set(&self, service: &str, account: &str, value: &Secret) -> Result<(), SecretError> {
        self.inner
            .lock()
            .unwrap()
            .insert((service.to_string(), account.to_string()), value.clone());
        Ok(())
    }
    fn delete(&self, service: &str, account: &str) -> Result<(), SecretError> {
        self.inner
            .lock()
            .unwrap()
            .remove(&(service.to_string(), account.to_string()));
        Ok(())
    }
}