max / goingson

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1	//! Fastmail OAuth2 provider.
2	//!
3	//! Implements OAuth2 with PKCE for Fastmail's JMAP API access.
4	//! Uses ClientIdOnly (no client secret required with PKCE).
5	//!
6	//! See: https://www.fastmail.com/developer/integrating-with-fastmail/
7
8	use crate::oauth::provider::{ClientAuthMethod, OAuthProvider, OAuthProviderConfig};
9
10	/// Fastmail OAuth2 provider.
11	///
12	/// Uses PKCE with client_id only (no secret required).
13	/// Uses JMAP instead of IMAP.
14	pub struct FastmailProvider {
15	client_id: String,
16	config: OAuthProviderConfig,
17	}
18
19	impl FastmailProvider {
20	/// Creates a new Fastmail OAuth provider.
21	pub fn new(client_id: impl Into<String>) -> Self {
22	Self {
23	client_id: client_id.into(),
24	config: OAuthProviderConfig {
25	auth_url: "https://api.fastmail.com/oauth/authorize".to_string(),
26	token_url: "https://api.fastmail.com/oauth/refresh".to_string(),
27	scopes: vec![
28	"urn:ietf:params:jmap:core".to_string(),
29	"urn:ietf:params:jmap:mail".to_string(),
30	"urn:ietf:params:jmap:submission".to_string(),
31	],
32	uses_jmap: true,
33	jmap_session_url: Some("https://api.fastmail.com/jmap/session".to_string()),
34	imap_server: None,
35	imap_port: None,
36	smtp_server: None,
37	smtp_port: None,
38	userinfo_url: Some("https://api.fastmail.com/jmap/session".to_string()),
39	email_json_path: vec!["username"], // Fastmail uses "username" for email
40	},
41	}
42	}
43	}
44
45	impl OAuthProvider for FastmailProvider {
46	fn id(&self) -> &'static str {
47	"fastmail"
48	}
49
50	fn display_name(&self) -> &'static str {
51	"Fastmail"
52	}
53
54	fn config(&self) -> &OAuthProviderConfig {
55	&self.config
56	}
57
58	fn client_id(&self) -> &str {
59	&self.client_id
60	}
61
62	fn client_auth_method(&self) -> ClientAuthMethod {
63	// Fastmail uses PKCE, no client secret needed
64	ClientAuthMethod::ClientIdOnly
65	}
66
67	// Uses default exchange_code, refresh_token, get_user_email implementations
68	}
69