models/krate: Extract max_upload_size() fn

src/controllers/krate/publish.rs

@@ -147,8 +147,7 @@ pub async fn publish(app: AppState, req: Parts, body: Body) -> AppResult<Json<Go
 
     let max_upload_size = existing_crate
         .as_ref()
-        .and_then(|c| c.max_upload_size)
-        .and_then(|m| u32::try_from(m).ok())
+        .and_then(|c| c.max_upload_size())
         .unwrap_or(app.config.max_upload_size);
 
     let tarball_bytes = read_tarball_bytes(&mut reader, max_upload_size).await?;

src/models/krate.rs

@@ -52,7 +52,7 @@ pub struct Crate {
     pub homepage: Option<String>,
     pub documentation: Option<String>,
     pub repository: Option<String>,
-    pub max_upload_size: Option<i32>,
+    max_upload_size: Option<i32>,
     pub max_features: Option<i16>,
 }
 
@@ -156,6 +156,11 @@ impl<'a> NewCrate<'a> {
 }
 
 impl Crate {
+    pub fn max_upload_size(&self) -> Option<u32> {
+        self.max_upload_size
+            .and_then(|size| u32::try_from(size).ok())
+    }
+
     /// SQL filter based on whether the crate's name loosely matches the given
     /// string.
     ///