systemprompt_security/session/
generator.rs

1//! Session id and JWT minting for authenticated sessions.
2//!
3//! Copyright (c) systemprompt.io — Business Source License 1.1.
4//! See <https://systemprompt.io> for licensing details.
5
6use chrono::{Duration, Utc};
7use jsonwebtoken::{Algorithm, Header, encode};
8use std::collections::BTreeMap;
9use systemprompt_identifiers::{SessionId, SessionToken, UserId};
10use systemprompt_models::auth::{
11    JwtAudience, JwtClaims, Permission, RateLimitTier, TokenType, UserType,
12};
13
14use crate::error::{JwtError, JwtResult};
15use crate::keys::authority;
16
17#[derive(Debug)]
18pub struct SessionParams<'a> {
19    pub user_id: &'a UserId,
20    pub session_id: &'a SessionId,
21    pub email: &'a str,
22    pub duration: Duration,
23    pub user_type: UserType,
24    pub permissions: Vec<Permission>,
25    pub roles: Vec<String>,
26    pub attributes: BTreeMap<String, serde_json::Value>,
27    pub rate_limit_tier: RateLimitTier,
28}
29
30#[derive(Debug)]
31pub struct SessionGenerator {
32    issuer: String,
33}
34
35impl SessionGenerator {
36    pub fn new(issuer: impl Into<String>) -> Self {
37        Self {
38            issuer: issuer.into(),
39        }
40    }
41
42    pub fn generate(&self, params: &SessionParams<'_>) -> JwtResult<SessionToken> {
43        let now = Utc::now();
44        let expiry = now + params.duration;
45
46        let claims = JwtClaims {
47            sub: params.user_id.to_string(),
48            iat: now.timestamp(),
49            exp: expiry.timestamp(),
50            nbf: Some(now.timestamp()),
51            iss: self.issuer.clone(),
52            aud: JwtAudience::standard(),
53            jti: uuid::Uuid::new_v4().to_string(),
54            scope: params.permissions.clone(),
55            username: params.email.to_owned(),
56            email: params.email.to_owned(),
57            user_type: params.user_type,
58            roles: params.roles.clone(),
59            attributes: params.attributes.clone(),
60            client_id: None,
61            token_type: TokenType::Bearer,
62            auth_time: now.timestamp(),
63            session_id: Some(params.session_id.clone()),
64            rate_limit_tier: Some(params.rate_limit_tier),
65            plugin_id: None,
66            act: None,
67        };
68
69        let kid = authority::active_kid().map_err(|e| JwtError::Signing(e.to_string()))?;
70        let mut header = Header::new(Algorithm::RS256);
71        header.kid = Some(kid.to_owned());
72        let key = authority::encoding_key().map_err(|e| JwtError::Signing(e.to_string()))?;
73        let token = encode(&header, &claims, key).map_err(JwtError::from)?;
74
75        Ok(SessionToken::new(token))
76    }
77}
systemprompt_security/session/generator.rs

systemprompt_security/session/
generator.rs
