initial import

11 files changed, 2598 insertions, 0 deletions

diff --git a/src/api/auth/account.rs b/src/api/auth/account.rs
new file mode 100644
index 0000000..51dd98e
--- /dev/null
+++ b/src/api/auth/account.rs
@@ -0,0 +1,413 @@
+use std::sync::Arc;
+
+use anyhow::Result;
+use chrono::{DateTime, Utc};
+use password_hash::SaltString;
+use rand::{thread_rng, Rng};
+use rocket::request::FromRequest;
+use rocket::State;
+use rocket::{serde::json::Json, Request};
+use serde::{Deserialize, Serialize};
+use validator::Validate;
+
+use crate::api::{Empty, EMPTY};
+use crate::db::{Db, DbConn};
+use crate::mailer::Mailer;
+use crate::push::PushClient;
+use crate::types::AccountResetID;
+use crate::utils::DeferAction;
+use crate::Config;
+use crate::{
+    api::{auth, serialize_dt},
+    auth::{AuthSource, Authenticated},
+    crypto::{AuthPW, KeyBundle, KeyFetchReq, SecretBytes, SessionCredentials},
+    types::{HawkKey, KeyFetchID, OauthToken, SecretKey, SessionID, User, UserID, VerifyHash},
+};
+
+// TODO better error handling
+
+// MISSING get /account/profile
+// MISSING get /account/status
+// MISSING post /account/status
+// MISSING post /account/reset
+
+#[derive(Deserialize, Debug, Validate)]
+#[serde(deny_unknown_fields)]
+#[allow(non_snake_case)]
+pub(crate) struct Create {
+    #[validate(email, length(min = 3, max = 256))]
+    email: String,
+    authPW: AuthPW,
+    // MISSING service
+    // MISSING redirectTo
+    // MISSING resume
+    // MISSING metricsContext
+    // NOTE we misuse style to communicate an invite token!
+    style: Option<String>,
+    // MISSING verificationMethod
+}
+
+#[derive(Serialize, Debug)]
+#[allow(non_snake_case)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct CreateResp {
+    uid: UserID,
+    sessionToken: SecretBytes<32>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    keyFetchToken: Option<SecretBytes<32>>,
+    #[serde(serialize_with = "serialize_dt")]
+    authAt: DateTime<Utc>,
+    // MISSING verificationMethod
+}
+
+// MISSING arg: service
+#[post("/account/create?<keys>", data = "<data>")]
+pub(crate) async fn create(
+    db: &DbConn,
+    cfg: &State<Config>,
+    mailer: &State<Arc<Mailer>>,
+    keys: Option<bool>,
+    data: Json<Create>,
+) -> auth::Result<CreateResp> {
+    let keys = keys.unwrap_or(false);
+    let data = data.into_inner();
+    data.validate().map_err(|_| auth::Error::InvalidParameter)?;
+
+    if db.user_email_exists(&data.email).await? {
+        return Err(auth::Error::AccountExists);
+    }
+
+    match (cfg.invite_only, data.style) {
+        (false, Some(_)) => return Err(auth::Error::InvalidParameter),
+        (false, None) => (),
+        (true, None) => return Err(auth::Error::InviteOnly),
+        (true, Some(code)) => {
+            db.use_invite_code(&code).await.map_err(|e| match e {
+                sqlx::Error::RowNotFound => auth::Error::InviteNotFound,
+                e => auth::Error::Other(anyhow!(e)),
+            })?;
+        },
+    }
+
+    let ka = SecretBytes::generate();
+    let wrapwrap_kb = SecretBytes::generate();
+    let auth_salt = SaltString::generate(rand::rngs::OsRng);
+    let stretched = data.authPW.stretch(auth_salt.as_salt())?;
+    let verify_hash = stretched.verify_hash();
+    let session_token = SecretBytes::generate();
+    let session = SessionCredentials::derive(&session_token);
+    let key_fetch_token = if keys {
+        let key_fetch_token = SecretBytes::generate();
+        let req = KeyFetchReq::from_token(&key_fetch_token);
+        let wrapped = req.derive_resp().wrap_keys(&KeyBundle {
+            ka: ka.clone(),
+            wrap_kb: stretched.decrypt_wwkb(&wrapwrap_kb),
+        });
+        db.add_key_fetch(KeyFetchID(req.token_id.0), &HawkKey(req.req_hmac_key), &wrapped).await?;
+        Some(key_fetch_token)
+    } else {
+        None
+    };
+    let uid = db
+        .add_user(User {
+            auth_salt,
+            email: data.email.to_owned(),
+            ka: SecretKey(ka),
+            wrapwrap_kb: SecretKey(wrapwrap_kb),
+            verify_hash: VerifyHash(verify_hash),
+            display_name: None,
+            verified: false,
+        })
+        .await?;
+    let session_id = SessionID(session.token_id.0);
+    let auth_at = db
+        .add_session(session_id.clone(), &uid, HawkKey(session.req_hmac_key), false, None)
+        .await?;
+    let verify_code = hex::encode(&SecretBytes::<16>::generate().0);
+    db.add_verify_code(&uid, &session_id, &verify_code).await?;
+    // NOTE we send the email in this context rather than a spawn to signal
+    // send errors to the client.
+    mailer.send_account_verify(&uid, &data.email, &verify_code).await.map_err(|e| {
+        error!("failed to send email: {e}");
+        auth::Error::EmailFailed
+    })?;
+    Ok(Json(CreateResp {
+        uid,
+        sessionToken: session_token,
+        keyFetchToken: key_fetch_token,
+        authAt: auth_at,
+    }))
+}
+
+#[derive(Deserialize, Debug, Validate)]
+#[serde(deny_unknown_fields)]
+#[allow(non_snake_case)]
+pub(crate) struct Login {
+    #[validate(email, length(min = 3, max = 256))]
+    email: String,
+    authPW: AuthPW,
+    // MISSING service
+    // MISSING redirectTo
+    // MISSING resume
+    // MISSING reason
+    // MISSING unblockCode
+    // MISSING originalLoginEmail
+    // MISSING verificationMethod
+}
+
+#[derive(Serialize, Debug)]
+#[allow(non_snake_case)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct LoginResp {
+    uid: UserID,
+    sessionToken: SecretBytes<32>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    keyFetchToken: Option<SecretBytes<32>>,
+    // MISSING verificationMethod
+    // MISSING verificationReason
+    // NOTE this is the *account* verified status, not the session status.
+    // the spec doesn't say.
+    verified: bool,
+    #[serde(serialize_with = "serialize_dt")]
+    authAt: DateTime<Utc>,
+    // MISSING metricsEnabled
+}
+
+// MISSING arg: service
+// MISSING arg: verificationMethod
+#[post("/account/login?<keys>", data = "<data>")]
+pub(crate) async fn login(
+    db: &DbConn,
+    mailer: &State<Arc<Mailer>>,
+    keys: Option<bool>,
+    data: Json<Login>,
+) -> auth::Result<LoginResp> {
+    let keys = keys.unwrap_or(false);
+    let data = data.into_inner();
+    data.validate().map_err(|_| auth::Error::InvalidParameter)?;
+
+    let (uid, user) = db.get_user(&data.email).await.map_err(|_| auth::Error::UnknownAccount)?;
+    if user.email != data.email {
+        return Err(auth::Error::IncorrectEmailCase);
+    }
+    if !user.verified {
+        return Err(auth::Error::UnverifiedAccount);
+    }
+
+    let stretched = data.authPW.stretch(user.auth_salt.as_salt())?;
+    if stretched.verify_hash() != user.verify_hash.0 {
+        return Err(auth::Error::IncorrectPassword);
+    }
+
+    let session_token = SecretBytes::generate();
+    let session = SessionCredentials::derive(&session_token);
+    let key_fetch_token = if keys {
+        let key_fetch_token = SecretBytes::generate();
+        let req = KeyFetchReq::from_token(&key_fetch_token);
+        let wrapped = req.derive_resp().wrap_keys(&KeyBundle {
+            ka: user.ka.0.clone(),
+            wrap_kb: stretched.decrypt_wwkb(&user.wrapwrap_kb.0),
+        });
+        db.add_key_fetch(KeyFetchID(req.token_id.0), &HawkKey(req.req_hmac_key), &wrapped).await?;
+        Some(key_fetch_token)
+    } else {
+        None
+    };
+
+    let session_id = SessionID(session.token_id.0);
+    let verify_code = format!("{:06}", thread_rng().gen_range(0..=999999));
+    let auth_at = db
+        .add_session(
+            session_id.clone(),
+            &uid,
+            HawkKey(session.req_hmac_key),
+            false,
+            Some(&verify_code),
+        )
+        .await?;
+    // NOTE we send the email in this context rather than a spawn to signal
+    // send errors to the client.
+    mailer.send_session_verify(&data.email, &verify_code).await.map_err(|e| {
+        error!("failed to send email: {e}");
+        auth::Error::EmailFailed
+    })?;
+    Ok(Json(LoginResp {
+        uid,
+        sessionToken: session_token,
+        keyFetchToken: key_fetch_token,
+        verified: true,
+        authAt: auth_at,
+    }))
+}
+
+#[derive(Deserialize, Debug, Validate)]
+#[serde(deny_unknown_fields)]
+#[allow(non_snake_case)]
+pub(crate) struct Destroy {
+    #[validate(email, length(min = 3, max = 256))]
+    email: String,
+    authPW: AuthPW,
+}
+
+// TODO may also be authenticated with a verified session
+#[post("/account/destroy", data = "<data>")]
+pub(crate) async fn destroy(
+    db: &DbConn,
+    db_pool: &Db,
+    defer: &DeferAction,
+    pc: &State<Arc<PushClient>>,
+    data: Json<Destroy>,
+) -> auth::Result<Empty> {
+    let data = data.into_inner();
+    data.validate().map_err(|_| auth::Error::InvalidParameter)?;
+
+    let (uid, user) = db.get_user(&data.email).await.map_err(|_| auth::Error::UnknownAccount)?;
+    if user.email != data.email {
+        return Err(auth::Error::IncorrectEmailCase);
+    }
+
+    let stretched = data.authPW.stretch(user.auth_salt.as_salt())?;
+    if stretched.verify_hash() != user.verify_hash.0 {
+        return Err(auth::Error::IncorrectPassword);
+    }
+
+    let devs = db.get_devices(&uid).await;
+    db.delete_user(&data.email).await?;
+    match devs {
+        Ok(devs) => defer.spawn_after_success("api::account/destroy(post)", {
+            let (pc, db) = (Arc::clone(pc), db_pool.clone());
+            async move {
+                let db = db.begin().await?;
+                pc.account_destroyed(&devs, &uid).await;
+                db.commit().await?;
+                Ok(())
+            }
+        }),
+        Err(e) => warn!("account_destroyed push failed: {e}"),
+    }
+
+    Ok(EMPTY)
+}
+
+#[derive(Deserialize, Serialize, Debug)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct KeysResp {
+    bundle: String,
+}
+
+// NOTE the key fetch endpoint must delete a key fetch token from the database
+// once it has identified it, regardless of whether the request succeeds or
+// fails. we'll do this with a single-use auth source that sets the db to always
+// commit. the auth source must not be used for anything else. we can get away
+// with using a request guard because we'll always commit even if the guard
+// fails, but this is only allowable because this is the only handler for the path.
+
+#[derive(Debug)]
+pub(crate) struct WithKeyFetch;
+
+#[async_trait]
+impl AuthSource for WithKeyFetch {
+    type ID = KeyFetchID;
+    type Context = Vec<u8>;
+    async fn hawk(r: &Request<'_>, id: &KeyFetchID) -> Result<(SecretBytes<32>, Self::Context)> {
+        let db = Authenticated::<(), Self>::get_conn(r).await?;
+        db.always_commit().await?;
+        Ok(db.finish_key_fetch(id).await.map(|(h, ks)| (h.0, ks))?)
+    }
+    async fn bearer_token(_: &Request<'_>, _: &OauthToken) -> Result<(KeyFetchID, Self::Context)> {
+        // key fetch tokens are only valid in hawk requests
+        bail!("invalid key fetch authentication")
+    }
+}
+
+#[get("/account/keys")]
+pub(crate) async fn keys(auth: Authenticated<(), WithKeyFetch>) -> Json<KeysResp> {
+    // NOTE contrary to its own api spec fxa does not delete a key fetch if the
+    // associated session is not verified. we don't duplicate this special case
+    // because we control the clients, and requesting keys on an unverified session
+    // can be interpreted as a protocol violation anyway.
+    Json(KeysResp { bundle: hex::encode(&auth.context) })
+}
+
+#[derive(Debug)]
+pub(crate) struct WithResetToken;
+
+#[async_trait]
+impl AuthSource for WithResetToken {
+    type ID = AccountResetID;
+    type Context = UserID;
+    async fn hawk(
+        r: &Request<'_>,
+        id: &AccountResetID,
+    ) -> Result<(SecretBytes<32>, Self::Context)> {
+        // unlike key fetch we'll use a separate transaction here since the body of the
+        // handler can fail.
+        let pool = <&Db as FromRequest>::from_request(r)
+            .await
+            .success_or_else(|| anyhow!("could not open db connection"))?;
+        let db = pool.begin().await?;
+        let result = db.finish_account_reset(id).await.map(|(h, ctx)| (h.0, ctx))?;
+        db.commit().await?;
+        Ok(result)
+    }
+    async fn bearer_token(
+        _: &Request<'_>,
+        _: &OauthToken,
+    ) -> Result<(AccountResetID, Self::Context)> {
+        bail!("invalid password change authentication")
+    }
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+#[allow(non_snake_case)]
+pub(crate) struct AccountResetReq {
+    authPW: AuthPW,
+    // MISSING wrapKb
+    // MISSING recoveryKeyId
+    // MISSING sessionToken
+}
+
+// NOTE resetting an account does not clear active sync data on the storage server,
+// so an account may be reported as disconnected for a while. this is not an error,
+// just an inconvenience we haven't found out how to fix yet.
+
+// MISSING arg: keys
+#[post("/account/reset", data = "<data>")]
+pub(crate) async fn reset(
+    db: &DbConn,
+    mailer: &State<Arc<Mailer>>,
+    client: &State<Arc<PushClient>>,
+    defer: &DeferAction,
+    data: Authenticated<AccountResetReq, WithResetToken>,
+) -> auth::Result<Empty> {
+    let user = db.get_user_by_id(&data.context).await?;
+
+    let notify_devs = db.get_devices(&data.context).await?;
+
+    let wrapwrap_kb = SecretBytes::generate();
+    let auth_salt = SaltString::generate(rand::rngs::OsRng);
+    let stretched = data.body.authPW.stretch(auth_salt.as_salt())?;
+    let verify_hash = stretched.verify_hash();
+
+    db.reset_user_auth(&data.context, auth_salt, SecretKey(wrapwrap_kb), VerifyHash(verify_hash))
+        .await?;
+
+    defer.spawn_after_success("api::auth/account/reset(post)", {
+        let client = Arc::clone(client);
+        async move {
+            client.password_reset(&notify_devs).await;
+            Ok(())
+        }
+    });
+
+    mailer
+        .send_account_reset(&user.email)
+        .await
+        .map_err(|e| {
+            warn!("account reset email send failed: {e}");
+        })
+        .ok();
+
+    Ok(EMPTY)
+}
diff --git a/src/api/auth/device.rs b/src/api/auth/device.rs
new file mode 100644
index 0000000..2b05e12
--- /dev/null
+++ b/src/api/auth/device.rs
@@ -0,0 +1,455 @@
+use std::time::Duration;
+use std::{collections::HashMap, sync::Arc};
+
+use chrono::{DateTime, Utc};
+use futures::future::join_all;
+use rocket::{serde::json::Json, State};
+use serde::{Deserialize, Serialize};
+use serde_json::Value;
+
+use crate::api::auth::{WithSession, WithVerifiedFxaLogin, WithVerifiedSession};
+use crate::api::{Empty, EMPTY};
+use crate::db::DbConn;
+use crate::push::PushClient;
+use crate::utils::DeferAction;
+use crate::{
+    api::{auth, serialize_dt_opt},
+    auth::Authenticated,
+    db::Db,
+    types::{
+        Device, DeviceCommand, DeviceCommands, DeviceID, DevicePush, DeviceUpdate, OauthTokenID,
+        SessionID,
+    },
+};
+
+fn map_error(e: sqlx::Error) -> auth::Error {
+    match &e {
+        // not-null violations can presumably only be caused by bad parameters
+        sqlx::Error::Database(de) if de.code().as_deref() == Some("23502") => {
+            auth::Error::MissingParameter
+        },
+        sqlx::Error::RowNotFound => auth::Error::UnknownDevice,
+        _ => auth::Error::Other(anyhow!(e)),
+    }
+}
+
+#[derive(Debug, Serialize, Deserialize, PartialEq)]
+#[allow(non_snake_case)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct Info {
+    isCurrentDevice: bool,
+    id: DeviceID,
+    lastAccessTime: i64,
+    name: String,
+    r#type: String,
+    pushCallback: Option<String>,
+    pushPublicKey: Option<String>,
+    pushAuthKey: Option<String>,
+    pushEndpointExpired: bool,
+    availableCommands: HashMap<String, String>,
+    // NOTE location is optional per the spec, but fenix crashes if it isn't present
+    location: Value,
+    // MISSING lastAccessTimeFormatted
+    // MISSING approximateLastAccessTime
+    // MISSING approximateLastAccessTimeFormatted
+}
+
+fn device_to_json(current: Option<&DeviceID>, dev: Device) -> Info {
+    let (pcb, ppk, pak) = match dev.push {
+        Some(p) => (Some(p.callback), Some(p.public_key), Some(p.auth_key)),
+        None => (None, None, None),
+    };
+    Info {
+        isCurrentDevice: Some(&dev.device_id) == current,
+        id: dev.device_id,
+        lastAccessTime: dev.last_active.timestamp(),
+        name: dev.name,
+        r#type: dev.type_,
+        pushCallback: pcb,
+        pushPublicKey: ppk,
+        pushAuthKey: pak,
+        pushEndpointExpired: dev.push_expired,
+        availableCommands: dev.available_commands.into_map(),
+        location: dev.location,
+    }
+}
+
+#[derive(Serialize, Deserialize, PartialEq)]
+#[serde(transparent)]
+pub(crate) struct ListResp(Vec<Info>);
+
+#[get("/account/devices")]
+pub(crate) async fn devices(
+    db: &DbConn,
+    auth: Authenticated<(), WithVerifiedSession>,
+) -> auth::Result<ListResp> {
+    let devs = db.get_devices(&auth.context.uid).await?;
+    Ok(Json(ListResp(
+        devs.into_iter().map(|dev| device_to_json(auth.context.device_id.as_ref(), dev)).collect(),
+    )))
+}
+
+#[derive(Debug, Deserialize)]
+#[allow(non_snake_case)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct DeviceReq {
+    id: Option<DeviceID>,
+    name: Option<String>,
+    r#type: Option<String>,
+    pushCallback: Option<String>,
+    pushPublicKey: Option<String>,
+    pushAuthKey: Option<String>,
+    availableCommands: Option<HashMap<String, String>>,
+    // present for legacy reasons, ignored
+    #[allow(dead_code)]
+    capabilities: Option<Vec<String>>,
+    location: Option<Value>,
+}
+
+#[post("/account/device", data = "<data>")]
+pub(crate) async fn device(
+    db: &DbConn,
+    db_pool: &Db,
+    defer: &DeferAction,
+    client: &State<Arc<PushClient>>,
+    // need to allow registrations to all sessions, otherwise the "now verified"
+    // notification can't be sent
+    data: Authenticated<DeviceReq, WithSession>,
+) -> auth::Result<Info> {
+    let dev = data.body;
+    if let (None, None, None) = (&dev.name, &dev.r#type, &dev.pushCallback) {
+        return Err(auth::Error::MissingParameter);
+    }
+
+    let push = dev.pushCallback.map(|pcb| DevicePush {
+        callback: pcb,
+        public_key: dev.pushPublicKey.unwrap_or_default(),
+        auth_key: dev.pushAuthKey.unwrap_or_default(),
+    });
+
+    let (own_id, changed_id, notify) = match (dev.id, data.context.device_id) {
+        (None, None) => {
+            let new = DeviceID::random();
+            (Some(new.clone()), new, true)
+        },
+        (None, Some(own)) => (Some(own.clone()), own, false),
+        (Some(other), own) => (own, other, false),
+    };
+    let result = db
+        .change_device(
+            &data.context.uid,
+            &changed_id,
+            DeviceUpdate {
+                name: dev.name.as_ref().map(AsRef::as_ref),
+                type_: dev.r#type.as_ref().map(AsRef::as_ref),
+                push,
+                available_commands: dev.availableCommands.map(DeviceCommands),
+                location: dev.location,
+            },
+        )
+        .await
+        .map_err(map_error)?;
+    if notify {
+        db.set_session_device(&data.session, Some(&changed_id)).await?;
+        match db.get_devices(&data.context.uid).await {
+            Err(e) => warn!("device_connected push failed: {e}"),
+            Ok(mut devs) => defer.spawn_after_success("api::auth/account/device(post)", {
+                devs.retain(|d| d.device_id != changed_id);
+                let (client, db) = (Arc::clone(client), db_pool.clone());
+                let name = result.name.clone();
+                async move {
+                    let db = db.begin().await?;
+                    client.device_connected(&db, &devs, &name).await;
+                    db.commit().await?;
+                    Ok(())
+                }
+            }),
+        };
+    }
+    Ok(Json(device_to_json(own_id.as_ref(), result)))
+}
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct Command {
+    target: DeviceID,
+    command: String,
+    payload: Value,
+    ttl: Option<u32>,
+}
+
+#[derive(Debug, Deserialize, Serialize)]
+#[allow(non_snake_case)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct InvokeResp {
+    enqueued: bool,
+    notified: bool,
+    notifyError: Option<String>,
+}
+
+// NOTE fenix doesn't register a push callback for some reason, so receiving tabs
+// always requires opening the tab share menu or tab list first.
+#[post("/account/devices/invoke_command", data = "<cmd>")]
+pub(crate) async fn invoke(
+    client: &State<Arc<PushClient>>,
+    db: &DbConn,
+    cmd: Authenticated<Command, WithVerifiedSession>,
+) -> auth::Result<InvokeResp> {
+    let sender = cmd.context.device_id;
+    let dev = db.get_device(&cmd.context.uid, &cmd.body.target).await.map_err(map_error)?;
+    if dev.available_commands.get(&cmd.body.command).is_none() {
+        return Err(auth::Error::NoDeviceCommand);
+    }
+    let ttl = cmd.body.ttl.unwrap_or(30 * 86400).clamp(60, 30 * 86400);
+    let idx = db
+        .enqueue_command(&cmd.body.target, &sender, &cmd.body.command, &cmd.body.payload, ttl)
+        .await?;
+    let (notified, error) = client
+        .command_received(db, &dev, &cmd.body.command, idx, &sender)
+        .await
+        .map_or_else(|e| (false, Some(e.to_string())), |_| (true, None));
+    Ok(Json(InvokeResp { enqueued: true, notified, notifyError: error }))
+}
+
+#[derive(Debug, Serialize, Deserialize, PartialEq)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct CommandData {
+    command: String,
+    payload: Value,
+    sender: Option<String>,
+}
+
+#[derive(Debug, Serialize, Deserialize, PartialEq)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct CommandsEntry {
+    index: i64,
+    data: CommandData,
+}
+
+#[derive(Debug, Serialize, Deserialize, PartialEq)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct CommandsResp {
+    index: i64,
+    last: bool,
+    messages: Vec<CommandsEntry>,
+}
+
+fn map_command(c: DeviceCommand) -> CommandsEntry {
+    CommandsEntry {
+        index: c.index,
+        data: CommandData { command: c.command, payload: c.payload, sender: c.sender },
+    }
+}
+
+#[get("/account/device/commands?<index>&<limit>")]
+pub(crate) async fn commands(
+    db: &DbConn,
+    index: i64,
+    limit: Option<i64>,
+    auth: Authenticated<(), WithVerifiedSession>,
+) -> auth::Result<CommandsResp> {
+    let dev = auth.context.device_id.as_ref().ok_or(auth::Error::UnknownDevice)?;
+    let (more, cmds) =
+        db.get_commands(&auth.context.uid, dev, index, limit.unwrap_or(100).clamp(0, 100)).await?;
+    Ok(Json(CommandsResp {
+        index: cmds.iter().map(|c| c.index).max().unwrap_or(0),
+        last: !more,
+        messages: cmds.into_iter().map(map_command).collect(),
+    }))
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct DestroyReq {
+    id: DeviceID,
+}
+
+#[post("/account/device/destroy", data = "<req>")]
+pub(crate) async fn destroy(
+    db: &DbConn,
+    db_pool: &Db,
+    defer: &DeferAction,
+    client: &State<Arc<PushClient>>,
+    req: crate::auth::Authenticated<DestroyReq, WithVerifiedSession>,
+) -> auth::Result<Empty> {
+    db.delete_device(&req.context.uid, &req.body.id).await.map_err(map_error)?;
+    match db.get_devices(&req.context.uid).await {
+        Err(e) => warn!("device_disconnected push failed: {e}"),
+        Ok(devs) => defer.spawn_after_success("api::auth/account/device/destroy(post)", {
+            let (client, db) = (Arc::clone(client), db_pool.clone());
+            async move {
+                let db = db.begin().await?;
+                client.device_disconnected(&db, &devs, &req.body.id).await;
+                db.commit().await?;
+                Ok(())
+            }
+        }),
+    };
+    Ok(EMPTY)
+}
+
+#[derive(Debug, Deserialize)]
+pub(crate) enum NotifyTarget {
+    #[serde(rename = "all")]
+    All,
+}
+
+#[derive(Debug, Deserialize)]
+pub(crate) enum NotifyEPAction {
+    #[serde(rename = "accountVerify")]
+    AccountVerify,
+}
+
+#[derive(Debug, Deserialize)]
+#[allow(non_snake_case)]
+#[serde(untagged, deny_unknown_fields)]
+pub(crate) enum NotifyReq {
+    // deny_unknown_fields and flatten don't work together
+    All {
+        #[allow(dead_code)]
+        to: NotifyTarget,
+        _endpointAction: Option<NotifyEPAction>,
+        excluded: Option<Vec<DeviceID>>,
+        payload: Value,
+        TTL: Option<u32>,
+    },
+    Some {
+        to: Vec<DeviceID>,
+        _endpointAction: Option<NotifyEPAction>,
+        payload: Value,
+        TTL: Option<u32>,
+    },
+}
+
+#[post("/account/devices/notify", data = "<req>")]
+pub(crate) async fn notify(
+    db: &DbConn,
+    client: &State<Arc<PushClient>>,
+    req: Authenticated<NotifyReq, WithVerifiedSession>,
+) -> auth::Result<Empty> {
+    let (to, payload, ttl) = match req.body {
+        NotifyReq::All { excluded, payload, TTL: ttl, .. } => {
+            let excluded = excluded.unwrap_or_default();
+            let mut devs = db.get_devices(&req.context.uid).await?;
+            devs.retain(|d| !excluded.contains(&d.device_id));
+            (devs, payload, ttl)
+        },
+        NotifyReq::Some { to, payload, TTL: ttl, .. } => {
+            let to = join_all(to.iter().map(|id| db.get_device(&req.context.uid, id)))
+                .await
+                .into_iter()
+                .collect::<Result<Vec<_>, _>>()?;
+            (to, payload, ttl)
+        },
+    };
+    client.push_any(db, &to, Duration::from_secs(ttl.unwrap_or(0).into()), payload).await;
+    Ok(EMPTY)
+}
+
+#[derive(Debug, Serialize)]
+#[allow(non_snake_case)]
+pub(crate) struct AttachedClient {
+    clientId: Option<String>,
+    deviceId: Option<DeviceID>,
+    sessionTokenId: Option<SessionID>,
+    refreshTokenId: Option<OauthTokenID>,
+    isCurrentSession: bool,
+    deviceType: Option<String>,
+    name: Option<String>,
+    #[serde(serialize_with = "serialize_dt_opt")]
+    createdTime: Option<DateTime<Utc>>,
+    // MISSING createdTimeFormatted
+    #[serde(serialize_with = "serialize_dt_opt")]
+    lastAccessTime: Option<DateTime<Utc>>,
+    // MISSING lastAccessTimeFormatted
+    // MISSING approximateLastAccessTime
+    // MISSING approximateLastAccessTimeFormatted
+    scope: Option<String>,
+    // MISSING location
+    // MISSING userAgent
+    // MISSING os
+}
+
+// MISSING filterIdleDevicesTimestamp
+#[get("/account/attached_clients")]
+pub(crate) async fn attached_clients(
+    db: &DbConn,
+    auth: Authenticated<(), WithVerifiedFxaLogin>,
+) -> auth::Result<Vec<AttachedClient>> {
+    let clients = db.get_attached_clients(&auth.context.uid).await?;
+    Ok(Json(
+        clients
+            .into_iter()
+            .map(|dev| AttachedClient {
+                clientId: dev.client_id,
+                deviceId: dev.device_id,
+                refreshTokenId: dev.refresh_token_id,
+                isCurrentSession: dev.session_token_id.as_ref() == Some(&auth.session),
+                sessionTokenId: dev.session_token_id,
+                deviceType: dev.device_type,
+                name: dev.name,
+                createdTime: dev.created_time,
+                lastAccessTime: dev.last_access_time,
+                scope: dev.scope,
+            })
+            .collect::<Vec<_>>(),
+    ))
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+#[allow(non_snake_case)]
+pub(crate) struct DestroyAttachedClientReq {
+    // NOTE should be used to verify token deletion, but since we allow only a fixed
+    // number of clients that makes little sense.
+    #[allow(dead_code)]
+    clientId: Option<String>,
+    sessionTokenId: Option<SessionID>,
+    refreshTokenId: Option<OauthTokenID>,
+    deviceId: Option<DeviceID>,
+}
+
+#[post("/account/attached_client/destroy", data = "<req>")]
+pub(crate) async fn destroy_attached_client(
+    db: &DbConn,
+    db_pool: &Db,
+    defer: &DeferAction,
+    client: &State<Arc<PushClient>>,
+    req: Authenticated<DestroyAttachedClientReq, WithVerifiedFxaLogin>,
+) -> auth::Result<Empty> {
+    // only one id may be given, otherwise deleting things properly is more work.
+    if (req.body.sessionTokenId.is_some() as u32)
+        + (req.body.refreshTokenId.is_some() as u32)
+        + (req.body.deviceId.is_some() as u32)
+        != 1
+    {
+        return Err(auth::Error::InvalidParameter);
+    }
+
+    if let Some(dev) = req.body.deviceId {
+        let devs = db.get_devices(&req.context.uid).await;
+        db.delete_device(&req.context.uid, &dev).await?;
+        match devs {
+            Err(e) => warn!("device_disconnected push failed: {e}"),
+            Ok(devs) => {
+                defer.spawn_after_success("api::auth/account/attached_client/destroy(post)", {
+                    let (client, db) = (Arc::clone(client), db_pool.clone());
+                    async move {
+                        let db = db.begin().await?;
+                        client.device_disconnected(&db, &devs, &dev).await;
+                        db.commit().await?;
+                        Ok(())
+                    }
+                })
+            },
+        };
+    }
+    if let Some(id) = req.body.sessionTokenId {
+        db.delete_session(&req.context.uid, &id).await?;
+    }
+    if let Some(id) = req.body.refreshTokenId {
+        db.delete_refresh_token(&id).await?;
+    }
+
+    Ok(EMPTY)
+}
diff --git a/src/api/auth/email.rs b/src/api/auth/email.rs
new file mode 100644
index 0000000..f206759
--- /dev/null
+++ b/src/api/auth/email.rs
@@ -0,0 +1,126 @@
+use std::sync::Arc;
+
+use rocket::{serde::json::Json, State};
+use serde::{Deserialize, Serialize};
+
+use crate::{
+    api::{
+        auth::{self, WithFxaLogin},
+        Empty, EMPTY,
+    },
+    auth::Authenticated,
+    db::{Db, DbConn},
+    mailer::Mailer,
+    push::PushClient,
+    types::UserID,
+    utils::DeferAction,
+};
+
+// MISSING get /recovery_emails
+// MISSING post /recovery_email
+// MISSING post /recovery_email/destroy
+// MISSING post /recovery_email/resend_code
+// MISSING post /recovery_email/set_primary
+// MISSING post /emails/reminders/cad
+// MISSING post /recovery_email/secondary/resend_code
+// MISSING post /recovery_email/secondary/verify_code
+
+#[derive(Debug, Serialize)]
+#[allow(non_snake_case)]
+pub(crate) struct StatusResp {
+    email: String,
+    verified: bool,
+    sessionVerified: bool,
+    emailVerified: bool,
+}
+
+// MISSING arg: reason
+#[get("/recovery_email/status")]
+pub(crate) async fn status(
+    db: &DbConn,
+    req: Authenticated<(), WithFxaLogin>,
+) -> auth::Result<StatusResp> {
+    let user = db.get_user_by_id(&req.context.uid).await?;
+    Ok(Json(StatusResp {
+        email: user.email,
+        verified: user.verified,
+        sessionVerified: req.context.verified,
+        emailVerified: user.verified,
+    }))
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct VerifyReq {
+    uid: UserID,
+    code: String,
+    // MISSING service
+    // MISSING reminder
+    // MISSING type
+    // MISSING style
+    // MISSING marketingOptIn
+    // MISSING newsletters
+}
+
+#[post("/recovery_email/verify_code", data = "<req>")]
+pub(crate) async fn verify_code(
+    db: &DbConn,
+    db_pool: &Db,
+    defer: &DeferAction,
+    pc: &State<Arc<PushClient>>,
+    req: Json<VerifyReq>,
+) -> auth::Result<Empty> {
+    let code = match db.try_use_verify_code(&req.uid, &req.code).await? {
+        Some(code) => code,
+        None => return Err(auth::Error::InvalidVerificationCode),
+    };
+    db.set_user_verified(&req.uid).await?;
+    if let Some(sid) = code.session_id {
+        db.set_session_verified(&sid).await?;
+    }
+    match db.get_devices(&req.uid).await {
+        Ok(devs) => defer.spawn_after_success("api::auth/recovery_email/verify_code(post)", {
+            let (pc, db) = (Arc::clone(pc), db_pool.clone());
+            async move {
+                let db = db.begin().await?;
+                pc.account_verified(&db, &devs).await;
+                db.commit().await?;
+                Ok(())
+            }
+        }),
+        Err(e) => warn!("account_verified push failed: {e}"),
+    }
+    Ok(EMPTY)
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct ResendReq {
+    // MISSING email
+    // MISSING service
+    // MISSING redirectTo
+    // MISSING resume
+    // MISSING style
+    // MISSING type
+}
+
+// MISSING arg: service
+// MISSING arg: type
+#[post("/recovery_email/resend_code", data = "<req>")]
+pub(crate) async fn resend_code(
+    db: &DbConn,
+    mailer: &State<Arc<Mailer>>,
+    req: Authenticated<ResendReq, WithFxaLogin>,
+) -> auth::Result<Empty> {
+    let (email, code) = match db.get_verify_code(&req.context.uid).await {
+        Ok(v) => v,
+        Err(_) => return Err(auth::Error::InvalidVerificationCode),
+    };
+    // NOTE we send the email in this context rather than a spawn to signal
+    // send errors to the client.
+    mailer.send_account_verify(&req.context.uid, &email, &code.code).await.map_err(|e| {
+        error!("failed to send email: {e}");
+        auth::Error::EmailFailed
+    })?;
+    Ok(EMPTY)
+}
diff --git a/src/api/auth/invite.rs b/src/api/auth/invite.rs
new file mode 100644
index 0000000..dd81540
--- /dev/null
+++ b/src/api/auth/invite.rs
@@ -0,0 +1,47 @@
+use base64::URL_SAFE_NO_PAD;
+use chrono::{Duration, Utc};
+use rocket::{http::uri::Reference, serde::json::Json, State};
+use serde::{Deserialize, Serialize};
+
+use crate::{api::auth, auth::Authenticated, crypto::SecretBytes, db::DbConn, Config};
+
+use super::WithVerifiedFxaLogin;
+
+pub(crate) async fn generate_invite_link(
+    db: &DbConn,
+    cfg: &Config,
+    ttl: Duration,
+) -> anyhow::Result<Reference<'static>> {
+    let code = base64::encode_config(&SecretBytes::<32>::generate().0, URL_SAFE_NO_PAD);
+    db.add_invite_code(&code, Utc::now() + ttl).await?;
+    Ok(Reference::parse_owned(format!("{}/#/register/{}", cfg.location, code))
+        .map_err(|e| anyhow!("url building failed at {e}"))?)
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct GenerateReq {
+    ttl_hours: u32,
+}
+
+#[derive(Debug, Serialize)]
+pub(crate) struct GenerateResp {
+    url: Reference<'static>,
+}
+
+#[post("/generate", data = "<req>")]
+pub(crate) async fn generate(
+    db: &DbConn,
+    cfg: &State<Config>,
+    req: Authenticated<GenerateReq, WithVerifiedFxaLogin>,
+) -> auth::Result<GenerateResp> {
+    if !req.context.verified {
+        return Err(auth::Error::UnverifiedSession);
+    }
+    let user = db.get_user_by_id(&req.context.uid).await?;
+    if user.email != cfg.invite_admin_address {
+        return Err(auth::Error::InvalidAuthToken);
+    }
+    let url = generate_invite_link(&db, &cfg, Duration::hours(req.body.ttl_hours as i64)).await?;
+    Ok(Json(GenerateResp { url }))
+}
diff --git a/src/api/auth/mod.rs b/src/api/auth/mod.rs
new file mode 100644
index 0000000..2c6d34d
--- /dev/null
+++ b/src/api/auth/mod.rs
@@ -0,0 +1,238 @@
+use rocket::{
+    http::Status,
+    response::{self, Responder},
+    serde::json::Json,
+    Request, Response,
+};
+use serde_json::json;
+
+use crate::{
+    auth::Authenticated,
+    crypto::SecretBytes,
+    types::{OauthToken, SessionID, UserSession},
+};
+
+pub(crate) mod account;
+pub(crate) mod device;
+pub(crate) mod email;
+pub(crate) mod invite;
+pub(crate) mod oauth;
+pub(crate) mod password;
+pub(crate) mod session;
+
+// we don't provide any additional fields. some we can't provide anyway (eg
+// invalid parameter `validation`), others are implied by the request body (eg
+// account exists `email`), and *our* client doesn't care about them anyway
+#[derive(Debug)]
+pub(crate) enum Error {
+    AccountExists,
+    UnknownAccount,
+    IncorrectPassword,
+    UnverifiedAccount,
+    InvalidVerificationCode,
+    InvalidBody,
+    InvalidParameter,
+    MissingParameter,
+    InvalidSignature,
+    InvalidAuthToken,
+    RequestTooLarge,
+    IncorrectEmailCase,
+    UnknownDevice,
+    UnverifiedSession,
+    EmailFailed,
+    NoDeviceCommand,
+    UnknownClientID,
+    ScopesNotAllowed,
+
+    InviteOnly,
+    InviteNotFound,
+
+    Other(anyhow::Error),
+    UnexpectedStatus(Status),
+}
+
+#[rustfmt::skip]
+impl<'r> Responder<'r, 'static> for Error {
+    fn respond_to(self, request: &'r Request<'_>) -> response::Result<'static> {
+        let (code, errno, msg) = match self {
+            Error::AccountExists => (Status::BadRequest, 101, "account already exists"),
+            Error::UnknownAccount => (Status::BadRequest, 102, "unknown account"),
+            Error::IncorrectPassword => (Status::BadRequest, 103, "incorrect password"),
+            Error::UnverifiedAccount => (Status::BadRequest, 104, "unverified account"),
+            Error::InvalidVerificationCode => (Status::BadRequest, 105, "invalid verification code"),
+            Error::InvalidBody => (Status::BadRequest, 106, "invalid json in request body"),
+            Error::InvalidParameter => (Status::BadRequest, 107, "invalid parameter in request body"),
+            Error::MissingParameter => (Status::BadRequest, 108, "missing parameter in request body"),
+            Error::InvalidSignature => (Status::Unauthorized, 109, "invalid request signature"),
+            Error::InvalidAuthToken => (Status::Unauthorized, 110, "invalid authentication token"),
+            Error::RequestTooLarge => (Status::PayloadTooLarge, 113, "request too large"),
+            Error::IncorrectEmailCase => (Status::BadRequest, 120, "incorrect email case"),
+            Error::UnknownDevice => (Status::BadRequest, 123, "unknown device"),
+            Error::UnverifiedSession => (Status::BadRequest, 138, "unverified session"),
+            Error::EmailFailed => (Status::UnprocessableEntity, 151, "failed to send email"),
+            Error::NoDeviceCommand => (Status::BadRequest, 157, "unavailable device command"),
+            Error::UnknownClientID => (Status::BadRequest, 162, "unknown client_id"),
+            Error::ScopesNotAllowed => (Status::BadRequest, 169, "requested scopes not allowed"),
+            Error::InviteOnly => (Status::BadRequest, -1, "invite code required"),
+            Error::InviteNotFound => (Status::BadRequest, -2, "invite code not found"),
+            Error::Other(e) => {
+                error!("non-api error during request: {:#?}", e);
+                (Status::InternalServerError, 999, "internal error")
+            },
+            Error::UnexpectedStatus(s) => (s, 999, ""),
+        };
+        let body = json!({
+            "code": code.code,
+            "errno": errno,
+            "error": code.reason_lossy(),
+            "message": msg
+        });
+        Response::build_from(Json(body).respond_to(request)?).status(code).ok()
+    }
+}
+
+impl From<sqlx::Error> for Error {
+    fn from(e: sqlx::Error) -> Self {
+        Error::Other(anyhow!(e))
+    }
+}
+
+impl From<anyhow::Error> for Error {
+    fn from(e: anyhow::Error) -> Self {
+        Error::Other(e)
+    }
+}
+
+pub(crate) type Result<T> = std::result::Result<Json<T>, Error>;
+
+// hack marker type to convey that auth failed due to an unverified session.
+// without this the catcher could convert the Unauthorized error we get from
+// auth failures into just one thing, even though we have multiple causes.
+#[derive(Clone, Copy, Debug)]
+struct UsedUnverifiedSession;
+
+#[catch(default)]
+pub(crate) fn catch_all(status: Status, req: &Request<'_>) -> Error {
+    match req.local_cache(|| None) {
+        Some(UsedUnverifiedSession) => Error::UnverifiedSession,
+        _ => {
+            match status.code {
+                401 => Error::InvalidSignature,
+                // these three are caused by Json<T> errors
+                400 => Error::InvalidBody,
+                413 => Error::RequestTooLarge,
+                422 => Error::InvalidParameter,
+                // generic unauthorized instead of 404 for eg wrong method or nonexistant endpoints
+                404 => Error::InvalidSignature,
+                _ => {
+                    error!("caught unexpected error {status}");
+                    Error::UnexpectedStatus(status)
+                },
+            }
+        },
+    }
+}
+
+#[derive(Debug)]
+pub(crate) struct WithFxaLogin;
+
+#[async_trait]
+impl crate::auth::AuthSource for WithFxaLogin {
+    type ID = SessionID;
+    type Context = UserSession;
+    async fn hawk(
+        r: &Request<'_>,
+        id: &SessionID,
+    ) -> anyhow::Result<(SecretBytes<32>, Self::Context)> {
+        let db = Authenticated::<(), Self>::get_conn(r).await?;
+        let k = db.use_session(id).await?;
+        Ok((k.req_hmac_key.0.clone(), k))
+    }
+    async fn bearer_token(
+        _: &Request<'_>,
+        _: &OauthToken,
+    ) -> anyhow::Result<(SessionID, Self::Context)> {
+        bail!("refresh tokens not allowed here");
+    }
+}
+
+#[derive(Debug)]
+pub(crate) struct WithVerifiedFxaLogin;
+
+#[async_trait]
+impl crate::auth::AuthSource for WithVerifiedFxaLogin {
+    type ID = SessionID;
+    type Context = UserSession;
+    async fn hawk(
+        r: &Request<'_>,
+        id: &SessionID,
+    ) -> anyhow::Result<(SecretBytes<32>, Self::Context)> {
+        let res = WithFxaLogin::hawk(r, id).await?;
+        match res.1.verified {
+            true => Ok(res),
+            false => {
+                r.local_cache(|| Some(UsedUnverifiedSession));
+                bail!("session not verified");
+            },
+        }
+    }
+    async fn bearer_token(
+        _: &Request<'_>,
+        _: &OauthToken,
+    ) -> anyhow::Result<(SessionID, Self::Context)> {
+        bail!("refresh tokens not allowed here");
+    }
+}
+
+#[derive(Debug)]
+pub(crate) struct WithSession;
+
+#[rocket::async_trait]
+impl crate::auth::AuthSource for WithSession {
+    type ID = SessionID;
+    type Context = UserSession;
+    async fn hawk(
+        r: &Request<'_>,
+        id: &SessionID,
+    ) -> anyhow::Result<(SecretBytes<32>, Self::Context)> {
+        WithFxaLogin::hawk(r, id).await
+    }
+    async fn bearer_token(
+        r: &Request<'_>,
+        token: &OauthToken,
+    ) -> anyhow::Result<(SessionID, Self::Context)> {
+        let db = Authenticated::<(), Self>::get_conn(r).await?;
+        Ok(db.use_session_from_refresh(&token.hash()).await?)
+    }
+}
+
+#[derive(Debug)]
+pub(crate) struct WithVerifiedSession;
+
+#[rocket::async_trait]
+impl crate::auth::AuthSource for WithVerifiedSession {
+    type ID = SessionID;
+    type Context = UserSession;
+    async fn hawk(
+        r: &Request<'_>,
+        id: &SessionID,
+    ) -> anyhow::Result<(SecretBytes<32>, Self::Context)> {
+        WithVerifiedFxaLogin::hawk(r, id).await
+    }
+    async fn bearer_token(
+        r: &Request<'_>,
+        token: &OauthToken,
+    ) -> anyhow::Result<(SessionID, Self::Context)> {
+        let db = Authenticated::<(), Self>::get_conn(r).await?;
+        let res = db.use_session_from_refresh(&token.hash()).await?;
+        match res.1.verified {
+            true => Ok(res),
+            false => {
+                // technically unreachable because generating a refresh token requires a
+                // valid fxa session
+                r.local_cache(|| Some(UsedUnverifiedSession));
+                bail!("session not verified");
+            },
+        }
+    }
+}
diff --git a/src/api/auth/oauth.rs b/src/api/auth/oauth.rs
new file mode 100644
index 0000000..b0ed8ee
--- /dev/null
+++ b/src/api/auth/oauth.rs
@@ -0,0 +1,433 @@
+use std::collections::HashMap;
+
+use chrono::{DateTime, Duration, Local, Utc};
+use rocket::serde::json::Json;
+use serde::{Deserialize, Serialize};
+use serde_json::Value;
+use sha2::Digest;
+use subtle::ConstantTimeEq;
+
+use crate::api::auth::WithVerifiedFxaLogin;
+use crate::db::DbConn;
+use crate::types::oauth::{Scope, ScopeSet};
+use crate::{
+    api::{auth, serialize_dt},
+    auth::Authenticated,
+    crypto::{SecretBytes, SessionCredentials},
+    types::{
+        HawkKey, OauthAccessToken, OauthAccessType, OauthAuthorization, OauthAuthorizationID,
+        OauthRefreshToken, OauthToken, OauthTokenID, SessionID, UserID,
+    },
+};
+
+// MISSING get /oauth/client/{client_id}
+
+pub(crate) struct OauthClient {
+    pub(crate) id: &'static str,
+    // NOTE not read so far, but good to have
+    #[allow(dead_code)]
+    pub(crate) name: &'static str,
+    pub(crate) scopes: &'static [Scope<'static>],
+}
+
+const SESSION_SCOPE: Scope = Scope::borrowed("https://identity.mozilla.com/tokens/session");
+
+// NOTE the telemetry scopes don't seem to be needed. since we'd have to give
+// out keys for them (fxa does) we'll exclude them entirely.
+// see fxa-auth-server/config/dev.json for lists of predefined clients and permissions.
+pub(crate) const OAUTH_CLIENTS: [OauthClient; 2] = [
+    OauthClient {
+        id: "5882386c6d801776",
+        name: "Firefox",
+        scopes: &[
+            Scope::borrowed("profile:write"),
+            Scope::borrowed("https://identity.mozilla.com/apps/oldsync"),
+            Scope::borrowed("https://identity.mozilla.com/tokens/session"),
+            // "https://identity.mozilla.com/ids/ecosystem_telemetry",
+        ],
+    },
+    OauthClient {
+        id: "a2270f727f45f648",
+        name: "Fenix",
+        scopes: &[
+            Scope::borrowed("profile"),
+            Scope::borrowed("https://identity.mozilla.com/apps/oldsync"),
+            Scope::borrowed("https://identity.mozilla.com/tokens/session"),
+            // "https://identity.mozilla.com/ids/ecosystem_telemetry",
+        ],
+    },
+];
+
+// NOTE fxa dev config allows scoped keys only for:
+//  - https://identity.mozilla.com/apps/notes
+//  - https://identity.mozilla.com/apps/oldsync
+//  - https://identity.mozilla.com/ids/ecosystem_telemetry
+//  - https://identity.mozilla.com/apps/send
+// we only implement sync because notes and send are dead and
+// telemetry is of no use to us
+const SCOPES_WITH_KEYS: [Scope; 1] = [Scope::borrowed("https://identity.mozilla.com/apps/oldsync")];
+
+fn check_client_and_scopes(
+    client_id: &str,
+    scope: &ScopeSet,
+) -> Result<&'static OauthClient, auth::Error> {
+    let desc = match OAUTH_CLIENTS.iter().find(|&s| s.id == client_id) {
+        Some(d) => d,
+        None => return Err(auth::Error::UnknownClientID),
+    };
+    if !scope.is_allowed_by(desc.scopes) {
+        return Err(auth::Error::ScopesNotAllowed);
+    }
+    Ok(desc)
+}
+
+#[derive(Debug, Deserialize)]
+pub(crate) enum PkceChallengeType {
+    S256,
+}
+
+#[derive(Debug, Deserialize)]
+pub(crate) enum AuthResponseType {
+    #[serde(rename = "code")]
+    Code,
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct OauthAuthReq {
+    client_id: String,
+    state: String,
+    keys_jwe: Option<String>,
+    scope: ScopeSet,
+    access_type: OauthAccessType,
+    // NOTE we don't support confidential clients, so PKCE is mandatory
+    code_challenge: String,
+
+    // MISSING redirect_uri
+    // MISSING acr_value
+
+    // for validation during deserialization only
+    #[allow(dead_code)]
+    code_challenge_method: PkceChallengeType,
+    #[allow(dead_code)]
+    response_type: AuthResponseType,
+}
+
+#[derive(Debug, Serialize)]
+pub(crate) struct OauthAuthResp {
+    code: OauthAuthorizationID,
+    state: String,
+    // MISSING redirect
+}
+
+#[post("/oauth/authorization", data = "<req>")]
+pub(crate) async fn authorization(
+    db: &DbConn,
+    req: Authenticated<OauthAuthReq, WithVerifiedFxaLogin>,
+) -> auth::Result<OauthAuthResp> {
+    check_client_and_scopes(&req.body.client_id, &req.body.scope)?;
+    let id = OauthAuthorizationID::random();
+    db.add_oauth_authorization(
+        &id,
+        OauthAuthorization {
+            user_id: req.context.uid,
+            client_id: req.body.client_id,
+            scope: req.body.scope,
+            access_type: req.body.access_type,
+            code_challenge: req.body.code_challenge,
+            keys_jwe: req.body.keys_jwe,
+            auth_at: req.context.created_at,
+        },
+    )
+    .await?;
+    Ok(Json(OauthAuthResp { code: id, state: req.body.state }))
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct ScopedKeysReq {
+    client_id: String,
+    scope: ScopeSet,
+}
+
+#[derive(Debug, Serialize)]
+#[allow(non_snake_case)]
+pub(crate) struct ScopedKey {
+    identifier: String,
+    keyRotationSecret: &'static str,
+    keyRotationTimestamp: u64,
+}
+
+#[post("/account/scoped-key-data", data = "<data>")]
+pub(crate) async fn scoped_key_data(
+    data: Authenticated<ScopedKeysReq, WithVerifiedFxaLogin>,
+) -> auth::Result<HashMap<String, ScopedKey>> {
+    check_client_and_scopes(&data.body.client_id, &data.body.scope)?;
+    // like fxa we'll stub out key rotation handling entirely and return the same constants.
+    Ok(Json(
+        data.body
+            .scope
+            .split()
+            .filter(|s| SCOPES_WITH_KEYS.contains(s))
+            .map(|scope| {
+                (
+                    scope.to_string(),
+                    ScopedKey {
+                        identifier: scope.to_string(),
+                        keyRotationSecret:
+                            "0000000000000000000000000000000000000000000000000000000000000000",
+                        keyRotationTimestamp: 0,
+                    },
+                )
+            })
+            .collect(),
+    ))
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct OauthDestroy {
+    client_id: String,
+    token: OauthToken,
+}
+
+#[post("/oauth/destroy", data = "<data>")]
+pub(crate) async fn destroy(db: &DbConn, data: Json<OauthDestroy>) -> auth::Result<()> {
+    // MISSING api spec allows an optional basic auth header, but what for?
+    // TODO fxa also checks the authorization header if present, but firefox doesn't send it
+    let client_id = if let Ok(t) = db.get_refresh_token(&data.token.hash()).await {
+        t.client_id
+    } else if let Ok(t) = db.get_access_token(&data.token.hash()).await {
+        t.client_id
+    } else {
+        return Err(auth::Error::InvalidParameter);
+    };
+    // fxa does constant-time checks for client_id, do that here too.
+    if client_id.as_bytes().ct_eq(data.client_id.as_bytes()).into() {
+        db.delete_oauth_token(&data.token.hash()).await?;
+        Ok(Json(()))
+    } else {
+        Err(auth::Error::InvalidParameter)
+    }
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(tag = "grant_type")]
+enum TokenReqDetails {
+    // we can't use deny_unknown_fields when flatten is involved, and multiple
+    // flattens in the same struct cause problems if one of them is greedy (like map).
+    // flatten an extra map into every variant instead and check each of them.
+    #[serde(rename = "authorization_code")]
+    AuthCode {
+        code: OauthAuthorizationID,
+        code_verifier: String,
+        // NOTE only useful with redirect flows, which we kinda don't support at all
+        #[allow(dead_code)]
+        redirect_uri: Option<String>,
+        #[serde(flatten)]
+        extra: HashMap<String, Value>,
+    },
+    #[serde(rename = "refresh_token")]
+    RefreshToken {
+        refresh_token: OauthToken,
+        scope: ScopeSet,
+        #[serde(flatten)]
+        extra: HashMap<String, Value>,
+    },
+    #[serde(rename = "fxa-credentials")]
+    FxaCreds {
+        scope: ScopeSet,
+        access_type: Option<OauthAccessType>,
+        #[serde(flatten)]
+        extra: HashMap<String, Value>,
+    },
+}
+
+impl TokenReqDetails {
+    fn extra_is_empty(&self) -> bool {
+        match self {
+            TokenReqDetails::AuthCode { extra, .. } => extra.is_empty(),
+            TokenReqDetails::RefreshToken { extra, .. } => extra.is_empty(),
+            TokenReqDetails::FxaCreds { extra, .. } => extra.is_empty(),
+        }
+    }
+}
+
+// TODO log errors in all the places
+
+#[derive(Debug, Deserialize)]
+pub(crate) struct TokenReq {
+    client_id: String,
+    ttl: Option<u32>,
+    #[serde(flatten)]
+    details: TokenReqDetails,
+    // MISSING client_secret
+    // MISSING redirect_uri
+    // MISSING ttl
+    // MISSING ppid_seed
+    // MISSING resource
+}
+
+#[derive(Debug, Serialize)]
+pub(crate) enum TokenType {
+    #[serde(rename = "bearer")]
+    Bearer,
+}
+
+#[derive(Debug, Serialize)]
+pub(crate) struct TokenResp {
+    access_token: OauthToken,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    refresh_token: Option<OauthToken>,
+    // MISSING id_token
+    #[serde(skip_serializing_if = "Option::is_none")]
+    session_token: Option<String>,
+    scope: ScopeSet,
+    token_type: TokenType,
+    expires_in: u32,
+    #[serde(serialize_with = "serialize_dt")]
+    auth_at: DateTime<Utc>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    keys_jwe: Option<String>,
+}
+
+#[post("/oauth/token", data = "<req>", rank = 1)]
+pub(crate) async fn token_authenticated(
+    db: &DbConn,
+    req: Authenticated<TokenReq, WithVerifiedFxaLogin>,
+) -> auth::Result<TokenResp> {
+    match &req.body.details {
+        TokenReqDetails::FxaCreds { .. } => (),
+        _ => return Err(auth::Error::InvalidParameter),
+    }
+    token_impl(
+        db,
+        Some(req.context.uid),
+        Some(req.context.created_at),
+        req.body,
+        None,
+        Some(req.session.clone()),
+    )
+    .await
+}
+
+#[post("/oauth/token", data = "<req>", rank = 2)]
+pub(crate) async fn token_unauthenticated(
+    db: &DbConn,
+    req: Json<TokenReq>,
+) -> auth::Result<TokenResp> {
+    let (parent_refresh, auth_at) = match &req.details {
+        TokenReqDetails::RefreshToken { refresh_token, .. } => {
+            let session = db.use_session_from_refresh(&refresh_token.hash()).await?;
+            (Some(refresh_token.hash()), Some(session.1.created_at))
+        },
+        TokenReqDetails::AuthCode { .. } => (None, None),
+        _ => return Err(auth::Error::InvalidParameter),
+    };
+    token_impl(db, None, auth_at, req.into_inner(), parent_refresh, None).await
+}
+
+async fn token_impl(
+    db: &DbConn,
+    user_id: Option<UserID>,
+    auth_at: Option<DateTime<Utc>>,
+    req: TokenReq,
+    parent_refresh: Option<OauthTokenID>,
+    parent_session: Option<SessionID>,
+) -> auth::Result<TokenResp> {
+    if !req.details.extra_is_empty() {
+        return Err(auth::Error::InvalidParameter);
+    }
+    let ttl = req.ttl.unwrap_or(3600).clamp(0, 7 * 86400);
+
+    let (auth_at, scope, keys_jwe, user_id, access_type) = match req.details {
+        TokenReqDetails::AuthCode { code, code_verifier, .. } => {
+            let auth = match db.take_oauth_authorization(&code).await {
+                Ok(a) => a,
+                Err(_) => return Err(auth::Error::InvalidAuthToken),
+            };
+            if !bool::from(auth.client_id.as_bytes().ct_eq(req.client_id.as_bytes())) {
+                return Err(auth::Error::UnknownClientID);
+            }
+            let mut sha = sha2::Sha256::new();
+            sha.update(code_verifier.as_bytes());
+            let challenge = base64::encode_config(&sha.finalize(), base64::URL_SAFE_NO_PAD);
+            if !bool::from(challenge.as_bytes().ct_eq(auth.code_challenge.as_bytes())) {
+                return Err(auth::Error::InvalidParameter);
+            }
+            (auth.auth_at, auth.scope, auth.keys_jwe, auth.user_id, Some(auth.access_type))
+        },
+        TokenReqDetails::RefreshToken { refresh_token, scope, .. } => {
+            let auth_at =
+                auth_at.expect("oauth token requests with refresh token must set auth_at");
+            let base = db.get_refresh_token(&refresh_token.hash()).await?;
+            if !bool::from(base.client_id.as_bytes().ct_eq(req.client_id.as_bytes())) {
+                return Err(auth::Error::UnknownClientID);
+            }
+            check_client_and_scopes(&req.client_id, &scope)?;
+            if !base.scope.implies_all(&scope) {
+                return Err(auth::Error::ScopesNotAllowed);
+            }
+            (auth_at, scope, None, base.user_id, None)
+        },
+        TokenReqDetails::FxaCreds { scope, access_type, .. } => {
+            let user_id = user_id.expect("oauth token requests with fxa must set user_id");
+            let auth_at = auth_at.expect("oauth token requests with fxa must set auth_at");
+            check_client_and_scopes(&req.client_id, &scope)?;
+            (auth_at, scope, None, user_id, access_type)
+        },
+    };
+
+    let access_token = OauthToken::random();
+    db.add_access_token(
+        &access_token.hash(),
+        OauthAccessToken {
+            user_id: user_id.clone(),
+            client_id: req.client_id.clone(),
+            scope: scope.clone(),
+            parent_refresh,
+            parent_session,
+            expires_at: (Local::now() + Duration::seconds(ttl.into())).into(),
+        },
+    )
+    .await?;
+
+    let (refresh_token, session_token) = if access_type == Some(OauthAccessType::Offline) {
+        let (session_token, session_id) = if scope.implies(&SESSION_SCOPE) {
+            let session_token = SecretBytes::generate();
+            let session = SessionCredentials::derive(&session_token);
+            let session_id = SessionID(session.token_id.0);
+            db.add_session(session_id.clone(), &user_id, HawkKey(session.req_hmac_key), true, None)
+                .await?;
+            (Some(session_token.0), Some(SessionID(session.token_id.0)))
+        } else {
+            (None, None)
+        };
+
+        let refresh_token = OauthToken::random();
+        db.add_refresh_token(
+            &refresh_token.hash(),
+            OauthRefreshToken {
+                user_id,
+                client_id: req.client_id,
+                scope: scope.remove(&SESSION_SCOPE),
+                session_id,
+            },
+        )
+        .await?;
+        (Some(refresh_token), session_token)
+    } else {
+        (None, None)
+    };
+
+    Ok(Json(TokenResp {
+        access_token,
+        refresh_token,
+        session_token: session_token.map(hex::encode),
+        scope: scope.remove(&SESSION_SCOPE),
+        token_type: TokenType::Bearer,
+        expires_in: ttl,
+        auth_at,
+        keys_jwe,
+    }))
+}
diff --git a/src/api/auth/password.rs b/src/api/auth/password.rs
new file mode 100644
index 0000000..0eeab4f
--- /dev/null
+++ b/src/api/auth/password.rs
@@ -0,0 +1,260 @@
+use std::sync::Arc;
+
+use anyhow::Result;
+use password_hash::SaltString;
+use rocket::{request::FromRequest, serde::json::Json, Request, State};
+use serde::{Deserialize, Serialize};
+use validator::Validate;
+
+use crate::{
+    api::auth,
+    auth::{AuthSource, Authenticated},
+    crypto::{AccountResetReq, AuthPW, KeyBundle, KeyFetchReq, PasswordChangeReq, SecretBytes},
+    db::{Db, DbConn},
+    mailer::Mailer,
+    types::{
+        AccountResetID, HawkKey, KeyFetchID, OauthToken, PasswordChangeID, SecretKey, UserID,
+        VerifyHash,
+    },
+};
+
+// MISSING get /password/forgot/status
+// MISSING post /password/create
+// MISSING post /password/forgot/resend_code
+
+#[derive(Debug, Deserialize, Validate)]
+#[serde(deny_unknown_fields)]
+#[allow(non_snake_case)]
+pub(crate) struct ChangeStartReq {
+    #[validate(email, length(min = 3, max = 256))]
+    email: String,
+    oldAuthPW: AuthPW,
+}
+
+#[derive(Debug, Serialize)]
+#[allow(non_snake_case)]
+pub(crate) struct ChangeStartResp {
+    keyFetchToken: SecretBytes<32>,
+    passwordChangeToken: SecretBytes<32>,
+}
+
+#[post("/password/change/start", data = "<data>")]
+pub(crate) async fn change_start(
+    db: &DbConn,
+    data: Json<ChangeStartReq>,
+) -> auth::Result<ChangeStartResp> {
+    let data = data.into_inner();
+    data.validate().map_err(|_| auth::Error::InvalidParameter)?;
+
+    let (uid, user) = db.get_user(&data.email).await.map_err(|_| auth::Error::UnknownAccount)?;
+    if user.email != data.email {
+        return Err(auth::Error::IncorrectEmailCase);
+    }
+    if !user.verified {
+        return Err(auth::Error::UnverifiedAccount);
+    }
+
+    let stretched = data.oldAuthPW.stretch(user.auth_salt.as_salt())?;
+    if stretched.verify_hash() != user.verify_hash.0 {
+        return Err(auth::Error::IncorrectPassword);
+    }
+
+    let change_token = SecretBytes::generate();
+    let change_req = PasswordChangeReq::from_change_token(&change_token);
+    let key_fetch_token = SecretBytes::generate();
+    let key_req = KeyFetchReq::from_token(&key_fetch_token);
+    let wrapped = key_req.derive_resp().wrap_keys(&KeyBundle {
+        ka: user.ka.0.clone(),
+        wrap_kb: stretched.decrypt_wwkb(&user.wrapwrap_kb.0),
+    });
+    db.add_key_fetch(KeyFetchID(key_req.token_id.0), &HawkKey(key_req.req_hmac_key), &wrapped)
+        .await?;
+    db.add_password_change(
+        &uid,
+        &PasswordChangeID(change_req.token_id.0),
+        &HawkKey(change_req.req_hmac_key),
+        None,
+    )
+    .await?;
+
+    Ok(Json(ChangeStartResp { keyFetchToken: key_fetch_token, passwordChangeToken: change_token }))
+}
+
+// NOTE we use a plain bool here and in the db instead of an enum because
+// enums aren't usable in const generics in stable.
+#[derive(Debug)]
+pub(crate) struct WithChangeToken<const IS_FORGOT: bool>;
+
+#[async_trait]
+impl<const IS_FORGOT: bool> AuthSource for WithChangeToken<IS_FORGOT> {
+    type ID = PasswordChangeID;
+    type Context = (UserID, Option<String>);
+    async fn hawk(
+        r: &Request<'_>,
+        id: &PasswordChangeID,
+    ) -> Result<(SecretBytes<32>, Self::Context)> {
+        // unlike key fetch we'll use a separate transaction here since the body of the
+        // handler can fail.
+        let pool = <&Db as FromRequest>::from_request(r)
+            .await
+            .success_or_else(|| anyhow!("could not open db connection"))?;
+        let db = pool.begin().await?;
+        let result = db.finish_password_change(id, IS_FORGOT).await.map(|(h, ctx)| (h.0, ctx))?;
+        db.commit().await?;
+        Ok(result)
+    }
+    async fn bearer_token(
+        _: &Request<'_>,
+        _: &OauthToken,
+    ) -> Result<(PasswordChangeID, Self::Context)> {
+        bail!("invalid password change authentication")
+    }
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+#[allow(non_snake_case)]
+pub(crate) struct ChangeFinishReq {
+    authPW: AuthPW,
+    wrapKb: SecretBytes<32>,
+    // MISSING sessionToken
+}
+
+#[derive(Debug, Serialize)]
+#[allow(non_snake_case)]
+pub(crate) struct ChangeFinishResp {
+    // NOTE we intentionally deviate from mozilla here. mozilla creates a new
+    // session if sessionToken is set in the request, but we use the "legacy"
+    // password change mechanism that leaves the requesting session and its
+    // device and keys intact. as such this struct is intentionally empty.
+    //
+    // MISSING uid
+    // MISSING sessionToken
+    // MISSING verified
+    // MISSING authAt
+    // MISSING keyFetchToken
+}
+
+#[post("/password/change/finish", data = "<data>")]
+pub(crate) async fn change_finish(
+    db: &DbConn,
+    mailer: &State<Arc<Mailer>>,
+    data: Authenticated<ChangeFinishReq, WithChangeToken<false>>,
+) -> auth::Result<ChangeFinishResp> {
+    let user = db.get_user_by_id(&data.context.0).await?;
+
+    let auth_salt = SaltString::generate(rand::rngs::OsRng);
+    let stretched = data.body.authPW.stretch(auth_salt.as_salt())?;
+    let verify_hash = stretched.verify_hash();
+    let wrapwrap_kb = stretched.rewrap_wkb(&data.body.wrapKb);
+
+    db.change_user_auth(
+        &data.context.0,
+        auth_salt,
+        SecretKey(wrapwrap_kb),
+        VerifyHash(verify_hash),
+    )
+    .await?;
+
+    // NOTE password_changed/password_reset pushes seem to have no effect, so skip them.
+
+    mailer
+        .send_password_changed(&user.email)
+        .await
+        .map_err(|e| {
+            warn!("password change email send failed: {e}");
+        })
+        .ok();
+
+    Ok(Json(ChangeFinishResp {}))
+}
+
+#[derive(Debug, Deserialize, Validate)]
+#[serde(deny_unknown_fields)]
+#[allow(non_snake_case)]
+pub(crate) struct ForgotStartReq {
+    #[validate(email, length(min = 3, max = 256))]
+    email: String,
+}
+
+#[derive(Debug, Serialize)]
+#[allow(non_snake_case)]
+pub(crate) struct ForgotStartResp {
+    passwordForgotToken: SecretBytes<32>,
+    ttl: u32,
+    codeLength: u32,
+    tries: u32,
+}
+
+#[post("/password/forgot/send_code", data = "<data>")]
+pub(crate) async fn forgot_start(
+    db: &DbConn,
+    mailer: &State<Arc<Mailer>>,
+    data: Json<ForgotStartReq>,
+) -> auth::Result<ForgotStartResp> {
+    let data = data.into_inner();
+    data.validate().map_err(|_| auth::Error::InvalidParameter)?;
+
+    let (uid, user) = db.get_user(&data.email).await.map_err(|_| auth::Error::UnknownAccount)?;
+    if user.email != data.email {
+        return Err(auth::Error::IncorrectEmailCase);
+    }
+    if !user.verified {
+        return Err(auth::Error::UnverifiedAccount);
+    }
+
+    let forgot_code = hex::encode(SecretBytes::<16>::generate().0);
+    let forgot_token = SecretBytes::generate();
+    let forgot_req = PasswordChangeReq::from_forgot_token(&forgot_token);
+    db.add_password_change(
+        &uid,
+        &PasswordChangeID(forgot_req.token_id.0),
+        &HawkKey(forgot_req.req_hmac_key),
+        Some(&forgot_code),
+    )
+    .await?;
+
+    mailer.send_password_forgot(&user.email, &forgot_code).await?;
+
+    Ok(Json(ForgotStartResp {
+        passwordForgotToken: forgot_token,
+        ttl: 300,
+        codeLength: 16,
+        tries: 1,
+    }))
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+#[allow(non_snake_case)]
+pub(crate) struct ForgotFinishReq {
+    code: String,
+    // MISSING accountResetWithRecoveryKey
+}
+
+#[derive(Debug, Serialize)]
+#[allow(non_snake_case)]
+pub(crate) struct ForgotFinishResp {
+    accountResetToken: SecretBytes<32>,
+}
+
+#[post("/password/forgot/verify_code", data = "<data>")]
+pub(crate) async fn forgot_finish(
+    db: &DbConn,
+    data: Authenticated<ForgotFinishReq, WithChangeToken<true>>,
+) -> auth::Result<ForgotFinishResp> {
+    if Some(data.body.code) != data.context.1 {
+        return Err(auth::Error::InvalidVerificationCode);
+    }
+
+    let reset_token = SecretBytes::generate();
+    let reset_req = AccountResetReq::from_token(&reset_token);
+    db.add_account_reset(
+        &data.context.0,
+        &AccountResetID(reset_req.token_id.0),
+        &HawkKey(reset_req.req_hmac_key),
+    )
+    .await?;
+
+    Ok(Json(ForgotFinishResp { accountResetToken: reset_token }))
+}
diff --git a/src/api/auth/session.rs b/src/api/auth/session.rs
new file mode 100644
index 0000000..5911b92
--- /dev/null
+++ b/src/api/auth/session.rs
@@ -0,0 +1,107 @@
+use std::sync::Arc;
+
+use rocket::serde::json::Json;
+use rocket::State;
+use serde::{Deserialize, Serialize};
+
+use crate::api::auth::WithFxaLogin;
+use crate::api::{auth, Empty, EMPTY};
+use crate::auth::Authenticated;
+use crate::db::Db;
+use crate::db::DbConn;
+use crate::mailer::Mailer;
+use crate::push::PushClient;
+use crate::types::{SessionID, UserID};
+use crate::utils::DeferAction;
+
+// MISSING post /session/duplicate
+// MISSING post /session/reauth
+// MISSING post /session/verify/send_push
+
+#[derive(Debug, Serialize)]
+pub(crate) struct StatusResp {
+    state: &'static str, // what does this *do*?
+    uid: UserID,
+}
+
+#[get("/session/status")]
+pub(crate) async fn status(req: Authenticated<(), WithFxaLogin>) -> auth::Result<StatusResp> {
+    Ok(Json(StatusResp { state: "", uid: req.context.uid }))
+}
+
+#[post("/session/resend_code", data = "<req>")]
+pub(crate) async fn resend_code(
+    db: &DbConn,
+    mailer: &State<Arc<Mailer>>,
+    req: Authenticated<Empty, WithFxaLogin>,
+) -> auth::Result<Empty> {
+    let code = match req.context.verify_code {
+        Some(code) => code,
+        _ => return Err(auth::Error::InvalidVerificationCode),
+    };
+
+    let user = db.get_user_by_id(&req.context.uid).await?;
+    mailer.send_session_verify(&user.email, &code).await.map_err(|e| {
+        error!("failed to send email: {e}");
+        auth::Error::EmailFailed
+    })?;
+    Ok(EMPTY)
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct VerifyReq {
+    code: String,
+    // MISSING service
+    // MISSING scopes
+    // MISSING marketingOptIn
+    // MISSING newsletters
+}
+
+#[post("/session/verify_code", data = "<req>")]
+pub(crate) async fn verify_code(
+    db: &DbConn,
+    req: Authenticated<VerifyReq, WithFxaLogin>,
+) -> auth::Result<Empty> {
+    if req.context.verify_code.as_ref() != Some(&req.body.code) {
+        return Err(auth::Error::InvalidVerificationCode);
+    }
+    db.set_session_verified(&req.session).await?;
+    Ok(EMPTY)
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct DestroyReq {
+    custom_session_id: Option<SessionID>,
+}
+
+#[post("/session/destroy", data = "<data>")]
+pub(crate) async fn destroy(
+    db: &DbConn,
+    db_pool: &Db,
+    defer: &DeferAction,
+    client: &State<Arc<PushClient>>,
+    data: Authenticated<DestroyReq, WithFxaLogin>,
+) -> auth::Result<Empty> {
+    if data.body.custom_session_id.is_some() && !data.context.verified {
+        return Err(auth::Error::UnverifiedSession);
+    }
+    let id = data.body.custom_session_id.as_ref().unwrap_or(&data.session);
+    db.delete_session(&data.context.uid, id).await.map_err(|_| auth::Error::UnknownDevice)?;
+    if let Some(id) = data.context.device_id {
+        match db.get_devices(&data.context.uid).await {
+            Err(e) => warn!("device_disconnected push failed: {e}"),
+            Ok(devs) => defer.spawn_after_success("api::auth/session/destroy(post)", {
+                let (client, db) = (Arc::clone(client), db_pool.clone());
+                async move {
+                    let db = db.begin().await?;
+                    client.device_disconnected(&db, &devs, &id).await;
+                    db.commit().await?;
+                    Ok(())
+                }
+            }),
+        };
+    }
+    Ok(EMPTY)
+}
diff --git a/src/api/mod.rs b/src/api/mod.rs
new file mode 100644
index 0000000..1831659
--- /dev/null
+++ b/src/api/mod.rs
@@ -0,0 +1,32 @@
+use chrono::{DateTime, TimeZone};
+use rocket::serde::json::Json;
+use serde::{Deserialize, Serialize, Serializer};
+
+pub(crate) mod auth;
+pub(crate) mod oauth;
+pub(crate) mod profile;
+
+pub fn serialize_dt<S, TZ>(dt: &DateTime<TZ>, ser: S) -> Result<S::Ok, S::Error>
+where
+    S: Serializer,
+    TZ: TimeZone,
+{
+    ser.serialize_i64(dt.timestamp())
+}
+
+pub fn serialize_dt_opt<S, TZ>(dt: &Option<DateTime<TZ>>, ser: S) -> Result<S::Ok, S::Error>
+where
+    S: Serializer,
+    TZ: TimeZone,
+{
+    match dt {
+        Some(dt) => serialize_dt(dt, ser),
+        None => ser.serialize_unit(),
+    }
+}
+
+#[derive(Clone, Copy, Serialize, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub struct Empty {}
+
+pub const EMPTY: Json<Empty> = Json(Empty {});
diff --git a/src/api/oauth.rs b/src/api/oauth.rs
new file mode 100644
index 0000000..0519125
--- /dev/null
+++ b/src/api/oauth.rs
@@ -0,0 +1,163 @@
+use rocket::{
+    http::Status,
+    response::{self, Responder},
+    serde::json::Json,
+    Request, Response,
+};
+use serde::{Deserialize, Serialize};
+use serde_json::json;
+
+use crate::{
+    api::Empty,
+    types::{OauthToken, UserID},
+};
+use crate::{db::DbConn, types::oauth::Scope};
+
+use super::EMPTY;
+
+// we don't provide any additional fields. some we can't provide anyway (eg
+// invalid parameter `validation`), others are implied by the request body (eg
+// account exists `email`), and *our* client doesn't care about them anyway
+#[derive(Debug)]
+pub(crate) enum Error {
+    InvalidParameter,
+    Unauthorized,
+    PayloadTooLarge,
+
+    Other(anyhow::Error),
+    UnexpectedStatus(Status),
+}
+
+#[rustfmt::skip]
+impl<'r> Responder<'r, 'static> for Error {
+    fn respond_to(self, request: &'r Request<'_>) -> response::Result<'static> {
+        let (code, errno, msg) = match self {
+            Error::InvalidParameter => (Status::BadRequest, 109, "invalid request parameter"),
+            Error::Unauthorized => (Status::Forbidden, 111, "unauthorized"),
+            Error::PayloadTooLarge => (Status::PayloadTooLarge, 999, "payload too large"),
+            Error::Other(e) => {
+                error!("non-api error during request: {:?}", e);
+                (Status::InternalServerError, 999, "internal error")
+            },
+            Error::UnexpectedStatus(s) => (s, 999, ""),
+        };
+        let body = json!({
+            "code": code.code,
+            "errno": errno,
+            "error": code.reason_lossy(),
+            "message": msg
+        });
+        Response::build_from(Json(body).respond_to(request)?).status(code).ok()
+    }
+}
+
+impl From<sqlx::Error> for Error {
+    fn from(e: sqlx::Error) -> Self {
+        Error::Other(anyhow!(e))
+    }
+}
+
+impl From<anyhow::Error> for Error {
+    fn from(e: anyhow::Error) -> Self {
+        Error::Other(e)
+    }
+}
+
+pub(crate) type Result<T> = std::result::Result<Json<T>, Error>;
+
+#[catch(default)]
+pub(crate) fn catch_all(status: Status, _r: &Request<'_>) -> Error {
+    match status.code {
+        401 => Error::Unauthorized,
+        // these three are caused by Json<T> errors
+        400 => Error::InvalidParameter,
+        413 => Error::PayloadTooLarge,
+        422 => Error::InvalidParameter,
+        // generic unauthorized instead of 404 for eg wrong method or nonexistant endpoints
+        404 => Error::Unauthorized,
+        _ => {
+            error!("caught unexpected error {status}");
+            Error::UnexpectedStatus(status)
+        },
+    }
+}
+
+fn map_error(e: sqlx::Error) -> Error {
+    match &e {
+        sqlx::Error::RowNotFound => Error::InvalidParameter,
+        _ => Error::Other(anyhow!(e)),
+    }
+}
+
+// MISSING GET /v1/authorization
+// MISSING POST /v1/authorization
+// MISSING POST /v1/authorized-clients
+// MISSING POST /v1/authorized-clients/destroy
+// MISSING GET /v1/client/:id
+// MISSING POST /v1/introspect
+// MISSING GET /v1/jwks
+// MISSING POST /v1/key-data
+// MISSING POST /v1/token
+// MISSING POST /v1/verify
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct DestroyReq {
+    access_token: Option<OauthToken>,
+    refresh_token: Option<OauthToken>,
+    // NOTE this field does not exist in the spec, but fenix sends it
+    token: Option<OauthToken>,
+    // MISSING client_id
+    // MISSING client_secret
+    // MISSING refresh_token_id
+}
+
+#[post("/destroy", data = "<req>")]
+pub(crate) async fn destroy(
+    db: &DbConn,
+    req: Json<DestroyReq>,
+) -> std::result::Result<Json<Empty>, Error> {
+    // MISSING spec says basic auth is allowed, but nothing seems to use it
+    if let Some(t) = req.0.access_token {
+        db.delete_oauth_token(&t.hash()).await?;
+    }
+    if let Some(t) = req.0.refresh_token {
+        db.delete_oauth_token(&t.hash()).await?;
+    }
+    if let Some(t) = req.0.token {
+        db.delete_oauth_token(&t.hash()).await?;
+    }
+    Ok(EMPTY)
+}
+
+#[get("/jwks")]
+pub(crate) async fn jwks() -> Json<Empty> {
+    // HACK we need to return *something* for /jwks, otherwise PyFxA fails.
+    // since syncstorage-rs uses PyFxA to check oauth tokens this is bad.
+    EMPTY
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub(crate) struct VerifyReq {
+    token: OauthToken,
+}
+
+#[derive(Debug, Serialize)]
+pub(crate) struct VerifyResp {
+    user: UserID,
+    client_id: String,
+    scope: Vec<Scope<'static>>,
+    // MISSING generation
+    // MISSING profile_changed_at
+}
+
+#[post("/verify", data = "<req>")]
+pub(crate) async fn verify(db: &DbConn, req: Json<VerifyReq>) -> Result<VerifyResp> {
+    let token = db.get_access_token(&req.token.hash()).await.map_err(map_error)?;
+    Ok(Json(VerifyResp {
+        user: token.user_id,
+        client_id: token.client_id,
+        scope: token.scope.split().map(|s| s.into_owned()).collect::<Vec<_>>(),
+    }))
+}
diff --git a/src/api/profile/mod.rs b/src/api/profile/mod.rs
new file mode 100644
index 0000000..28d1e03
--- /dev/null
+++ b/src/api/profile/mod.rs
@@ -0,0 +1,324 @@
+use std::sync::Arc;
+
+use either::Either;
+use rocket::{
+    data::ToByteUnit,
+    http::{uri::Absolute, ContentType, Status},
+    response::{self, Responder},
+    serde::json::Json,
+    Request, Response, State,
+};
+use serde::{Deserialize, Serialize};
+use serde_json::json;
+use sha2::{Digest, Sha256};
+use Either::{Left, Right};
+
+use crate::{
+    api::Empty,
+    auth::{Authenticated, WithBearer, AuthenticatedRequest},
+    cache::Immutable,
+    db::Db,
+    types::{oauth::Scope, UserID},
+    utils::DeferAction,
+};
+use crate::{db::DbConn, types::AvatarID, Config};
+use crate::{push::PushClient, types::Avatar};
+
+use super::EMPTY;
+
+// we don't provide any additional fields. some we can't provide anyway (eg
+// invalid parameter `validation`), others are implied by the request body (eg
+// account exists `email`), and *our* client doesn't care about them anyway
+#[derive(Debug)]
+pub(crate) enum Error {
+    Unauthorized,
+    InvalidParameter,
+    PayloadTooLarge,
+    NotFound,
+
+    // this is actually a response from the auth api (not the profile api),
+    // but firefox needs the *exact response* of this auth error to refresh
+    // profile fetch oauth tokens for its ui. :(
+    InvalidAuthToken,
+
+    Other(anyhow::Error),
+    UnexpectedStatus(Status),
+}
+
+#[rustfmt::skip]
+impl<'r> Responder<'r, 'static> for Error {
+    fn respond_to(self, request: &'r Request<'_>) -> response::Result<'static> {
+        let (code, errno, msg) = match self {
+            Error::Unauthorized => (Status::Forbidden, 100, "unauthorized"),
+            Error::InvalidParameter => (Status::BadRequest, 101, "invalid parameter in request body"),
+            Error::PayloadTooLarge => (Status::PayloadTooLarge, 999, "payload too large"),
+            Error::NotFound => (Status::NotFound, 999, "not found"),
+
+            Error::InvalidAuthToken => (Status::Unauthorized, 110, "invalid authentication token"),
+
+            Error::Other(e) => {
+                error!("non-api error during request: {:?}", e);
+                (Status::InternalServerError, 999, "internal error")
+            },
+            Error::UnexpectedStatus(s) => (s, 999, ""),
+        };
+        let body = json!({
+            "code": code.code,
+            "errno": errno,
+            "error": code.reason_lossy(),
+            "message": msg
+        });
+        Response::build_from(Json(body).respond_to(request)?).status(code).ok()
+    }
+}
+
+impl From<sqlx::Error> for Error {
+    fn from(e: sqlx::Error) -> Self {
+        Error::Other(anyhow!(e))
+    }
+}
+
+impl From<anyhow::Error> for Error {
+    fn from(e: anyhow::Error) -> Self {
+        Error::Other(e)
+    }
+}
+
+pub(crate) type Result<T> = std::result::Result<Json<T>, Error>;
+
+#[catch(default)]
+pub(crate) fn catch_all(status: Status, r: &Request<'_>) -> Error {
+    match status.code {
+        // these three are caused by Json<T> errors
+        400 | 422 => Error::InvalidParameter,
+        413 => Error::PayloadTooLarge,
+        // translate forbidden-because-token to the auth api error for firefox
+        401 if r.invalid_token_used() => Error::InvalidAuthToken,
+        // generic unauthorized instead of 404 for eg wrong method or nonexistant endpoints
+        401 | 404 => Error::Unauthorized,
+        _ => {
+            error!("caught unexpected error {status}");
+            Error::UnexpectedStatus(status)
+        },
+    }
+}
+
+// MISSING GET /v1/email
+// MISSING GET /v1/subscriptions
+// MISSING GET /v1/uid
+// MISSING GET /v1/display_name
+// MISSING DELETE /v1/cache/:uid
+// MISSING send profile:change webchannel event an avatar/name changes
+
+#[derive(Debug, Serialize)]
+#[allow(non_snake_case)]
+pub(crate) struct ProfileResp {
+    uid: Option<UserID>,
+    email: Option<String>,
+    locale: Option<String>,
+    amrValues: Option<Vec<String>>,
+    twoFactorAuthentication: bool,
+    displayName: Option<String>,
+    // NOTE spec does not exist, fxa-profile-server schema says this field is optional,
+    // but fenix exceptions if it's null.
+    // NOTE it also *must* be a valid url, or fenix crashes entirely.
+    avatar: Absolute<'static>,
+    avatarDefault: bool,
+    subscriptions: Option<Vec<String>>,
+}
+
+#[get("/profile")]
+pub(crate) async fn profile(
+    db: &DbConn,
+    cfg: &State<Config>,
+    auth: Authenticated<(), WithBearer>,
+) -> Result<ProfileResp> {
+    let has_scope = |s| auth.context.implies(&Scope::borrowed(s));
+
+    let user = db.get_user_by_id(&auth.session).await?;
+    let (avatar, avatar_default) = if has_scope("profile:avatar") {
+        match db.get_user_avatar_id(&auth.session).await? {
+            Some(id) => (uri!(cfg.avatars_prefix(), avatar_get_img(id = id.to_string())), false),
+            None => (
+                uri!(cfg.avatars_prefix(), avatar_get_img("00000000000000000000000000000000")),
+                true,
+            ),
+        }
+    } else {
+        (uri!(cfg.avatars_prefix(), avatar_get_img("00000000000000000000000000000000")), true)
+    };
+    Ok(Json(ProfileResp {
+        uid: if has_scope("profile:uid") { Some(auth.session) } else { None },
+        email: if has_scope("profile:email") { Some(user.email) } else { None },
+        locale: None,
+        amrValues: None,
+        twoFactorAuthentication: false,
+        displayName: if has_scope("profile:display_name") { user.display_name } else { None },
+        avatar,
+        avatarDefault: avatar_default,
+        subscriptions: None,
+    }))
+}
+
+#[derive(Debug, Deserialize)]
+#[allow(non_snake_case)]
+pub(crate) struct DisplayNameReq {
+    displayName: String,
+}
+
+#[post("/display_name", data = "<req>")]
+pub(crate) async fn display_name_post(
+    db: &DbConn,
+    db_pool: &Db,
+    pc: &State<Arc<PushClient>>,
+    defer: &DeferAction,
+    req: Authenticated<DisplayNameReq, WithBearer>,
+) -> Result<Empty> {
+    if !req.context.implies(&Scope::borrowed("profile:display_name:write")) {
+        return Err(Error::Unauthorized);
+    }
+
+    db.set_user_name(&req.session, &req.body.displayName).await?;
+    match db.get_devices(&req.session).await {
+        Ok(devs) => defer.spawn_after_success("api::profile/display_name(post)", {
+            let (pc, db) = (Arc::clone(pc), db_pool.clone());
+            async move {
+                let db = db.begin().await?;
+                pc.profile_updated(&db, &devs).await;
+                db.commit().await?;
+                Ok(())
+            }
+        }),
+        Err(e) => warn!("profile_updated push failed: {e}"),
+    }
+    Ok(EMPTY)
+}
+
+#[derive(Serialize)]
+#[allow(non_snake_case)]
+pub(crate) struct AvatarResp {
+    id: AvatarID,
+    avatarDefault: bool,
+    avatar: Absolute<'static>,
+}
+
+#[get("/avatar")]
+pub(crate) async fn avatar_get(
+    db: &DbConn,
+    cfg: &State<Config>,
+    req: Authenticated<(), WithBearer>,
+) -> Result<AvatarResp> {
+    if !req.context.implies(&Scope::borrowed("profile:avatar")) {
+        return Err(Error::Unauthorized);
+    }
+
+    let resp = match db.get_user_avatar_id(&req.session).await? {
+        Some(id) => {
+            let url = uri!(cfg.avatars_prefix(), avatar_get_img(id = id.to_string()));
+            AvatarResp { id, avatarDefault: false, avatar: url }
+        },
+        None => {
+            let url =
+                uri!(cfg.avatars_prefix(), avatar_get_img("00000000000000000000000000000000"));
+            AvatarResp { id: AvatarID([0; 16]), avatarDefault: true, avatar: url }
+        },
+    };
+    Ok(Json(resp))
+}
+
+#[get("/<id>")]
+pub(crate) async fn avatar_get_img(
+    db: &DbConn,
+    id: &str,
+) -> std::result::Result<(ContentType, Immutable<Either<Vec<u8>, &'static [u8]>>), Error> {
+    let id = id.parse().map_err(|_| Error::NotFound)?;
+
+    if id == AvatarID([0; 16]) {
+        return Ok((
+            ContentType::SVG,
+            Immutable(Right(include_bytes!("../../../Raven-Silhouette.svg"))),
+        ));
+    }
+
+    match db.get_user_avatar(&id).await? {
+        Some(avatar) => {
+            let ct = avatar.content_type.parse().expect("invalid content type in db");
+            Ok((ct, Immutable(Left(avatar.data))))
+        },
+        None => Err(Error::NotFound),
+    }
+}
+
+#[derive(Serialize)]
+#[allow(non_snake_case)]
+pub(crate) struct AvatarUploadResp {
+    url: Absolute<'static>,
+}
+
+#[post("/avatar/upload", data = "<data>")]
+pub(crate) async fn avatar_upload(
+    db: &DbConn,
+    db_pool: &Db,
+    pc: &State<Arc<PushClient>>,
+    defer: &DeferAction,
+    cfg: &State<Config>,
+    ct: &ContentType,
+    req: Authenticated<(), WithBearer>,
+    data: Vec<u8>,
+) -> Result<AvatarUploadResp> {
+    if !req.context.implies(&Scope::borrowed("profile:avatar:write")) {
+        return Err(Error::Unauthorized);
+    }
+    if data.len() >= 128.kibibytes() {
+        return Err(Error::PayloadTooLarge);
+    }
+
+    if !ct.is_png()
+        && !ct.is_gif()
+        && !ct.is_bmp()
+        && !ct.is_jpeg()
+        && !ct.is_webp()
+        && !ct.is_avif()
+        && !ct.is_svg()
+    {
+        return Err(Error::InvalidParameter);
+    }
+
+    let mut sha = Sha256::new();
+    sha.update(&req.session.0);
+    sha.update(&data);
+    let id = AvatarID(sha.finalize()[0..16].try_into().unwrap());
+
+    db.set_user_avatar(&req.session, Avatar { id: id.clone(), data, content_type: ct.to_string() })
+        .await?;
+    match db.get_devices(&req.session).await {
+        Ok(devs) => defer.spawn_after_success("api::profile/avatar/upload(post)", {
+            let (pc, db) = (Arc::clone(pc), db_pool.clone());
+            async move {
+                let db = db.begin().await?;
+                pc.profile_updated(&db, &devs).await;
+                db.commit().await?;
+                Ok(())
+            }
+        }),
+        Err(e) => warn!("profile_updated push failed: {e}"),
+    }
+
+    let url = uri!(cfg.avatars_prefix(), avatar_get_img(id = id.to_string()));
+    Ok(Json(AvatarUploadResp { url }))
+}
+
+#[delete("/avatar/<id>")]
+pub(crate) async fn avatar_delete(
+    db: &DbConn,
+    id: &str,
+    req: Authenticated<(), WithBearer>,
+) -> Result<Empty> {
+    if !req.context.implies(&Scope::borrowed("profile:avatar:write")) {
+        return Err(Error::Unauthorized);
+    }
+    let id = id.parse().map_err(|_| Error::NotFound)?;
+
+    db.delete_user_avatar(&req.session, &id).await?;
+    Ok(EMPTY)
+}