Import upstream v0.16.22, stripped

Upstream commit: 474dd0229cb20cf513036619781ed97bd8073c3f Enterprise-only files removed or emptied: 63 Enterprise-only snippets removed: 117 in 50 files Dangling module declarations removed: 5 Cargo edits turning enterprise off: 14 Verification: clean Enterprise feature gates left for rebuilt features: 19 in 18 files Produced by tools/fork/strip.py. The full report is in docs/fork/strip-reports/ on main.
2026-09-18 10:21:56 -07:00
commit 7dae9b29fd
1650 changed files with 485521 additions and 0 deletions
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+/*
+ * SPDX-FileCopyrightText: 2020 Stalwart Labs LLC <[email protected]>
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-SEL
+ */
+
+use ahash::AHashMap;
+use common::{
+    Inner, Server,
+    auth::AccessToken,
+    network::{ServerInstance, SessionStream, limiter::InFlight},
+};
+use imap_proto::{
+    Command,
+    protocol::{ProtocolVersion, list::Attribute},
+    receiver::Receiver,
+};
+use std::{
+    collections::BTreeMap,
+    net::IpAddr,
+    sync::{Arc, atomic::AtomicU32},
+};
+use tokio::{
+    io::{ReadHalf, WriteHalf},
+    sync::watch,
+};
+use trc::AddContext;
+
+pub mod client;
+pub mod mailbox;
+pub mod message;
+pub mod session;
+
+#[derive(Clone)]
+pub struct ImapSessionManager {
+    pub inner: Arc<Inner>,
+}
+
+impl ImapSessionManager {
+    pub fn new(inner: Arc<Inner>) -> Self {
+        Self { inner }
+    }
+}
+
+pub struct Session<T: SessionStream> {
+    pub server: Server,
+    pub instance: Arc<ServerInstance>,
+    pub receiver: Receiver<Command>,
+    pub version: ProtocolVersion,
+    pub state: State<T>,
+    pub is_tls: bool,
+    pub is_condstore: bool,
+    pub is_qresync: bool,
+    pub is_utf8: bool,
+    pub is_objectid: bool,
+    pub is_uidonly: bool,
+    pub stream_rx: ReadHalf<T>,
+    pub stream_tx: Arc<tokio::sync::Mutex<WriteHalf<T>>>,
+    pub in_flight: InFlight,
+    pub remote_addr: IpAddr,
+    pub session_id: u64,
+}
+
+pub struct SessionData<T: SessionStream> {
+    pub account_id: u32,
+    pub access_token: AccessToken,
+    pub server: Server,
+    pub session_id: u64,
+    pub mailboxes: parking_lot::Mutex<Vec<Account>>,
+    pub stream_tx: Arc<tokio::sync::Mutex<WriteHalf<T>>>,
+    pub state: AtomicU32,
+    pub remote_addr: IpAddr,
+    pub in_flight: Option<InFlight>,
+}
+
+pub struct SelectedMailbox {
+    pub id: MailboxId,
+    pub state: parking_lot::Mutex<MailboxState>,
+    pub saved_search: parking_lot::Mutex<SavedSearch>,
+    pub is_select: bool,
+    pub is_condstore: bool,
+}
+
+#[derive(Debug, PartialEq, Eq, Hash, Clone, Copy)]
+pub struct MailboxId {
+    pub account_id: u32,
+    pub mailbox_id: u32,
+}
+
+#[derive(Debug, Clone, Default)]
+pub struct Account {
+    pub account_id: u32,
+    pub prefix: Option<String>,
+    pub mailbox_names: BTreeMap<String, u32>,
+    pub mailbox_state: AHashMap<u32, Mailbox>,
+    pub last_change_id: u64,
+}
+
+#[derive(Debug, Default, Clone)]
+pub struct Mailbox {
+    pub has_children: bool,
+    pub is_subscribed: bool,
+    pub special_use: Option<Attribute>,
+    pub total_messages: u64,
+    pub total_unseen: u64,
+    pub total_deleted: u64,
+    pub total_deleted_storage: Option<u64>,
+    pub uid_validity: u64,
+    pub uid_next: u64,
+    pub size: Option<u64>,
+}
+
+#[derive(Debug, Clone, Default)]
+pub struct MailboxState {
+    pub uid_max: u32,
+    pub id_to_imap: AHashMap<u32, ImapId>,
+    pub uid_to_id: AHashMap<u32, u32>,
+    pub total_messages: usize,
+    pub modseq: u64,
+    pub next_state: Option<Box<NextMailboxState>>,
+}
+
+#[derive(Debug, Clone)]
+pub struct NextMailboxState {
+    pub next_state: MailboxState,
+    pub deletions: Vec<ImapId>,
+}
+
+#[derive(Debug, Clone, Copy, Default)]
+pub struct ImapId {
+    pub uid: u32,
+    pub seqnum: u32,
+}
+
+#[derive(Debug, Default)]
+pub struct MailboxSync {
+    pub added: Vec<String>,
+    pub changed: Vec<String>,
+    pub deleted: Vec<String>,
+}
+
+pub enum SavedSearch {
+    InFlight {
+        rx: watch::Receiver<Arc<Vec<ImapId>>>,
+    },
+    Results {
+        items: Arc<Vec<ImapId>>,
+    },
+    None,
+}
+
+#[derive(Debug, Clone, Copy, Default)]
+pub struct ImapUidToId {
+    pub uid: u32,
+    pub id: u32,
+}
+
+pub enum State<T: SessionStream> {
+    NotAuthenticated {
+        auth_failures: u32,
+    },
+    Authenticated {
+        data: Arc<SessionData<T>>,
+    },
+    Selected {
+        data: Arc<SessionData<T>>,
+        mailbox: Arc<SelectedMailbox>,
+    },
+}
+
+impl<T: SessionStream> State<T> {
+    pub fn try_replace_stream_tx<U: SessionStream>(
+        self,
+        new_stream: Arc<tokio::sync::Mutex<WriteHalf<U>>>,
+    ) -> Option<State<U>> {
+        match self {
+            State::NotAuthenticated { auth_failures } => {
+                State::NotAuthenticated { auth_failures }.into()
+            }
+            State::Authenticated { data } => {
+                Arc::try_unwrap(data).ok().map(|data| State::Authenticated {
+                    data: Arc::new(data.replace_stream_tx(new_stream)),
+                })
+            }
+            State::Selected { data, mailbox } => {
+                Arc::try_unwrap(data).ok().map(|data| State::Selected {
+                    data: Arc::new(data.replace_stream_tx(new_stream)),
+                    mailbox,
+                })
+            }
+        }
+    }
+}
+
+impl<T: SessionStream> SessionData<T> {
+    pub async fn refresh_access_token(&self) -> trc::Result<AccessToken> {
+        self.server
+            .access_token(self.account_id)
+            .await
+            .and_then(|inner| {
+                AccessToken::renew(inner, self.access_token.credential_id(), self.remote_addr)
+            })
+            .caused_by(trc::location!())
+    }
+
+    pub fn replace_stream_tx<U: SessionStream>(
+        self,
+        new_stream: Arc<tokio::sync::Mutex<WriteHalf<U>>>,
+    ) -> SessionData<U> {
+        SessionData {
+            account_id: self.account_id,
+            server: self.server,
+            session_id: self.session_id,
+            mailboxes: self.mailboxes,
+            stream_tx: new_stream,
+            state: self.state,
+            in_flight: self.in_flight,
+            access_token: self.access_token,
+            remote_addr: self.remote_addr,
+        }
+    }
+}
+
+impl MailboxState {
+    pub fn map_result_id(&self, document_id: u32, is_uid: bool) -> Option<(u32, ImapId)> {
+        if let Some(imap_id) = self.id_to_imap.get(&document_id) {
+            Some((if is_uid { imap_id.uid } else { imap_id.seqnum }, *imap_id))
+        } else if is_uid {
+            self.next_state.as_ref().and_then(|s| {
+                s.next_state
+                    .id_to_imap
+                    .get(&document_id)
+                    .map(|imap_id| (imap_id.uid, *imap_id))
+            })
+        } else {
+            None
+        }
+    }
+}