feat: implement Mirror middleware and OCI middleware work

crates/rattler/src/package_cache.rs

@@ -38,6 +38,14 @@ pub struct CacheKey {
     name: String,
     version: String,
     build_string: String,
+    sha256: Option<String>,
+}
+
+impl CacheKey {
+    /// Return the sha256 hash of the package if it is known.
+    pub fn sha256(&self) -> Option<&str> {
+        self.sha256.as_deref()
+    }
 }
 
 impl From<ArchiveIdentifier> for CacheKey {
@@ -46,6 +54,7 @@ impl From<ArchiveIdentifier> for CacheKey {
             name: pkg.name,
             version: pkg.version,
             build_string: pkg.build_string,
+            sha256: None,
         }
     }
 }
@@ -56,6 +65,7 @@ impl From<&PackageRecord> for CacheKey {
             name: record.name.as_normalized().to_string(),
             version: record.version.to_string(),
             build_string: record.build.clone(),
+            sha256: record.sha256.map(|s| format!("{s:x}")).clone(),
         }
     }
 }

crates/rattler_networking/Cargo.toml

@@ -11,6 +11,7 @@ license.workspace = true
 readme.workspace = true
 
 [features]
+default = ["rustls-tls"]
 native-tls = ['reqwest/native-tls']
 rustls-tls = ['reqwest/rustls-tls']
 
@@ -20,6 +21,7 @@ async-trait = { workspace = true }
 base64 = { workspace = true }
 dirs = { workspace = true }
 fslock = { workspace = true }
+http = "0.2"
 itertools = { workspace = true }
 keyring = { workspace = true }
 lazy_static = { workspace = true }

crates/rattler_networking/src/lib.rs

@@ -2,11 +2,12 @@
 
 //! Networking utilities for Rattler, specifically authenticating requests
 pub use authentication_middleware::AuthenticationMiddleware;
-
 pub use authentication_storage::{authentication::Authentication, storage::AuthenticationStorage};
+pub use mirror_middleware::{MirrorMiddleware, OciMiddleware};
 
 pub mod authentication_middleware;
 pub mod authentication_storage;
+pub mod mirror_middleware;
 pub mod retry_policies;
 
 mod redaction;