1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43

use async_session::{serde::Serialize, Session};
use trillium::Conn;

/**
extension trait to add session support to [`Conn`]

[`SessionHandler`](crate::SessionHandler) **MUST** be called on the
conn prior to using any of these functions.
*/
pub trait SessionConnExt {
    /**
    append a key-value pair to the current session, where the key is a
    &str and the value is anything serde-serializable.
    */
    fn with_session(self, key: &str, value: impl Serialize) -> Self;

    /**
    retrieve a reference to the current session
    */
    fn session(&self) -> &Session;

    /**
    retrieve a mutable reference to the current session
    */
    fn session_mut(&mut self) -> &mut Session;
}

impl SessionConnExt for Conn {
    fn session(&self) -> &Session {
        self.state()
            .expect("SessionHandler must be executed before calling SessionConnExt::sessions")
    }

    fn with_session(mut self, key: &str, value: impl Serialize) -> Self {
        self.session_mut().insert(key, value).ok();
        self
    }

    fn session_mut(&mut self) -> &mut Session {
        self.state_mut()
            .expect("SessionHandler must be executed before calling SessionConnExt::sessions_mut")
    }
}