chore: migrate authifier into codebase (#658)

Co-authored-by: izzy <me@insrt.uk>
Signed-off-by: Zomatree <me@zomatree.live>
Signed-off-by: izzy <me@insrt.uk>

crates/core/models/src/v0/sessions.rs

@@ -0,0 +1,88 @@
+use iso8601_timestamp::Timestamp;
+
+use crate::v0::{MFAMethod, MFAResponse};
+
+auto_derived!(
+    pub struct Session {
+        /// Unique Id
+        #[serde(rename = "_id")]
+        pub id: String,
+
+        /// User Id
+        pub user_id: String,
+
+        /// Session token
+        pub token: String,
+
+        /// Display name
+        pub name: String,
+
+        /// When the session was last logged in
+        pub last_seen: Timestamp,
+
+        /// Where the session is originating from
+        #[serde(skip_serializing_if = "Option::is_none")]
+        pub origin: Option<String>,
+
+        /// Web Push subscription
+        #[serde(skip_serializing_if = "Option::is_none")]
+        pub subscription: Option<WebPushSubscription>,
+    }
+
+    /// Web Push subscription
+    pub struct WebPushSubscription {
+        pub endpoint: String,
+        pub p256dh: String,
+        pub auth: String,
+    }
+
+    /// # Edit Data
+    pub struct DataEditSession {
+        /// Session friendly name
+        pub friendly_name: String,
+    }
+
+    pub struct SessionInfo {
+        #[serde(rename = "_id")]
+        pub id: String,
+        pub name: String,
+    }
+
+    /// # Login Data
+    #[serde(untagged)]
+    pub enum DataLogin {
+        Email {
+            /// Email
+            email: String,
+            /// Password
+            password: String,
+            /// Friendly name used for the session
+            friendly_name: Option<String>,
+        },
+        MFA {
+            /// Unvalidated or authorised MFA ticket
+            ///
+            /// Used to resolve the correct account
+            mfa_ticket: String,
+            /// Valid MFA response
+            ///
+            /// This will take precedence over the `password` field where applicable
+            mfa_response: Option<MFAResponse>,
+            /// Friendly name used for the session
+            friendly_name: Option<String>,
+        },
+    }
+
+    #[serde(tag = "result")]
+    pub enum ResponseLogin {
+        Success(Session),
+        MFA {
+            ticket: String,
+            allowed_methods: Vec<MFAMethod>,
+        },
+        Disabled {
+            user_id: String,
+        },
+    }
+
+);