max / goingson

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1	//! OAuth2 provider implementations.
2	//!
3	//! Implements OAuth2 authentication for various email providers:
4	//! - Fastmail (JMAP)
5	//! - Google/Gmail (Gmail API + IMAP XOAUTH2)
6	//! - Microsoft/Outlook (Graph API + IMAP XOAUTH2)
7
8	pub mod fastmail;
9	pub mod google;
10	pub mod microsoft;
11	pub use fastmail::FastmailProvider;
12	pub use google::GoogleProvider;
13	pub use microsoft::MicrosoftProvider;
14
15	use super::provider::OAuthProvider;
16	use goingson_core::EmailAuthType;
17
18	/// Registry of all supported OAuth providers.
19	pub struct ProviderRegistry {
20	providers: Vec<Box<dyn OAuthProvider>>,
21	}
22
23	impl ProviderRegistry {
24	/// Creates a new provider registry with default provider configurations.
25	///
26	/// Client IDs should be loaded from environment or configuration.
27	pub fn new(config: ProviderConfig) -> Self {
28	let mut providers: Vec<Box<dyn OAuthProvider>> = Vec::new();
29
30	if let Some(client_id) = config.fastmail_client_id {
31	providers.push(Box::new(FastmailProvider::new(client_id)));
32	}
33
34	if let (Some(client_id), Some(client_secret)) = (config.google_client_id, config.google_client_secret) {
35	providers.push(Box::new(GoogleProvider::new(client_id, client_secret)));
36	}
37
38	if let Some(client_id) = config.microsoft_client_id {
39	providers.push(Box::new(MicrosoftProvider::new(client_id, config.microsoft_client_secret)));
40	}
41
42	Self { providers }
43	}
44
45	/// Returns a list of available provider IDs.
46	pub fn available_providers(&self) -> Vec<&'static str> {
47	self.providers.iter().map(\|p\| p.id()).collect()
48	}
49
50	/// Gets a provider by its ID.
51	pub fn get(&self, id: &str) -> Option<&dyn OAuthProvider> {
52	self.providers.iter().find(\|p\| p.id() == id).map(\|p\| p.as_ref())
53	}
54
55	/// Gets the auth type for a provider ID.
56	pub fn auth_type_for(id: &str) -> EmailAuthType {
57	match id {
58	"fastmail" => EmailAuthType::OAuth2Fastmail,
59	// Future providers will have their own EmailAuthType variants
60	_ => EmailAuthType::Password,
61	}
62	}
63	}
64
65	/// Configuration for OAuth providers.
66	///
67	/// Client IDs and secrets should be loaded from environment variables
68	/// or a configuration file.
69	#[derive(Debug, Clone, Default)]
70	pub struct ProviderConfig {
71	/// Fastmail OAuth client ID.
72	pub fastmail_client_id: Option<String>,
73
74	/// Google OAuth client ID.
75	pub google_client_id: Option<String>,
76	/// Google OAuth client secret.
77	pub google_client_secret: Option<String>,
78
79	/// Microsoft OAuth client ID.
80	pub microsoft_client_id: Option<String>,
81	/// Microsoft OAuth client secret.
82	pub microsoft_client_secret: Option<String>,
83
84	}
85
86	impl ProviderConfig {
87	/// Loads provider configuration from environment variables.
88	pub fn from_env() -> Self {
89	Self {
90	fastmail_client_id: std::env::var("GOINGSON_FASTMAIL_CLIENT_ID").ok(),
91	google_client_id: std::env::var("GOINGSON_GOOGLE_CLIENT_ID").ok(),
92	google_client_secret: std::env::var("GOINGSON_GOOGLE_CLIENT_SECRET").ok(),
93	microsoft_client_id: std::env::var("GOINGSON_MICROSOFT_CLIENT_ID").ok(),
94	microsoft_client_secret: std::env::var("GOINGSON_MICROSOFT_CLIENT_SECRET").ok(),
95	}
96	}
97	}
98