drogue-client 0.11.1

Clients for the Drogue IoT Cloud APIs
Documentation 
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//! OpenID connect integrations and helpers.

#[cfg(feature = "reqwest")]
mod inject;
mod provider;

#[cfg(feature = "reqwest")]
pub use inject::*;
pub use provider::*;

use chrono::{DateTime, Utc};

/// Check if something expired or expires soon.
pub trait Expires {
    /// Check if the resources expires before the duration elapsed.
    fn expires_before(&self, duration: chrono::Duration) -> bool {
        match self.expires_in() {
            Some(expires) => expires <= duration,
            None => false,
        }
    }

    /// Get the duration until this resource expires. This may be negative.
    fn expires_in(&self) -> Option<chrono::Duration> {
        self.expires().map(|expires| expires - chrono::Utc::now())
    }

    /// Get the timestamp when the resource expires.
    fn expires(&self) -> Option<chrono::DateTime<chrono::Utc>>;
}

#[cfg(feature = "openid")]
impl Expires for openid::Bearer {
    fn expires(&self) -> Option<chrono::DateTime<chrono::Utc>> {
        self.expires
    }
}

impl Expires for DateTime<Utc> {
    fn expires(&self) -> Option<DateTime<Utc>> {
        Some(*self)
    }
}

#[cfg(test)]
mod test {
    use crate::openid::Expires;
    use chrono::*;

    #[test]
    fn test_expires_before() {
        let now = Utc::now();
        let timeout = now + Duration::seconds(30);

        assert!(!timeout.expires_before(Duration::seconds(10)));
        assert!(timeout.expires_before(Duration::seconds(60)));
    }
}