1 files changed, 46 insertions, 0 deletions
diff --git a/third_party/rust/viaduct/src/settings.rs b/third_party/rust/viaduct/src/settings.rs
new file mode 100644
index 0000000000..6ed204b44e
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+++ b/third_party/rust/viaduct/src/settings.rs
@@ -0,0 +1,46 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use once_cell::sync::Lazy;
+use parking_lot::RwLock;
+use std::time::Duration;
+use url::Url;
+
+/// Note: reqwest allows these only to be specified per-Client. concept-fetch
+/// allows these to be specified on each call to fetch. I think it's worth
+/// keeping a single global reqwest::Client in the reqwest backend, to simplify
+/// the way we abstract away from these.
+///
+/// In the future, should we need it, we might be able to add a CustomClient type
+/// with custom settings. In the reqwest backend this would store a Client, and
+/// in the concept-fetch backend it would only store the settings, and populate
+/// things on the fly.
+#[derive(Debug)]
+#[non_exhaustive]
+pub struct Settings {
+    pub read_timeout: Option<Duration>,
+    pub connect_timeout: Option<Duration>,
+    pub follow_redirects: bool,
+    pub use_caches: bool,
+    // For testing purposes, we allow exactly one additional Url which is
+    // allowed to not be https.
+    pub addn_allowed_insecure_url: Option<Url>,
+}
+
+#[cfg(target_os = "ios")]
+const TIMEOUT_DURATION: Duration = Duration::from_secs(7);
+
+#[cfg(not(target_os = "ios"))]
+const TIMEOUT_DURATION: Duration = Duration::from_secs(10);
+
+// The singleton instance of our settings.
+pub static GLOBAL_SETTINGS: Lazy<RwLock<Settings>> = Lazy::new(|| {
+    RwLock::new(Settings {
+        read_timeout: Some(TIMEOUT_DURATION),
+        connect_timeout: Some(TIMEOUT_DURATION),
+        follow_redirects: true,
+        use_caches: false,
+        addn_allowed_insecure_url: None,
+    })
+});