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.

crates/services/src/state_manager/mod.rs

@@ -0,0 +1,66 @@
+/*
+ * SPDX-FileCopyrightText: 2020 Stalwart Labs LLC <[email protected]>
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-SEL
+ */
+
+pub mod ece;
+pub mod email_push;
+pub mod http;
+pub mod manager;
+pub mod push;
+
+use common::ipc::PushNotification;
+use email::push::PushSubscription;
+use reqwest::Client;
+use std::{
+    sync::Arc,
+    time::{Duration, Instant},
+};
+use tokio::sync::mpsc;
+use types::{id::Id, type_state::DataType};
+use utils::map::bitmap::Bitmap;
+
+const PURGE_EVERY: Duration = Duration::from_secs(3600);
+const SEND_TIMEOUT: Duration = Duration::from_millis(500);
+
+#[derive(Debug)]
+struct IpcSubscriber {
+    types: Bitmap<DataType>,
+    tx: mpsc::Sender<PushNotification>,
+}
+
+#[derive(Debug)]
+pub struct PushRegistration {
+    server: Arc<PushSubscription>,
+    member_account_ids: Vec<u32>,
+    num_attempts: u32,
+    last_request: Instant,
+    notifications: Vec<PushNotification>,
+    in_flight: bool,
+    client: Client,
+}
+
+#[derive(Debug)]
+pub enum Event {
+    Push {
+        notification: PushNotification,
+    },
+    Update {
+        account_id: u32,
+    },
+    DeliverySuccess {
+        id: Id,
+    },
+    DeliveryFailure {
+        id: Id,
+        notifications: Vec<PushNotification>,
+    },
+    Reset,
+}
+
+impl IpcSubscriber {
+    fn is_valid(&self) -> bool {
+        !self.tx.is_closed()
+    }
+}