Increase max download limit to 128MB (#7965)

* fetch: increase max download limit to 64MB

* parity: increase download size limit for updater service

parity/run.rs

@@ -676,11 +676,15 @@ pub fn execute_impl(cmd: RunCmd, can_restart: bool, logger: Arc<RotatingLogger>)
 	let event_loop = EventLoop::spawn();
 
 	// the updater service
+	let mut updater_fetch = fetch.clone();
+	// parity binaries should be smaller than 128MB
+	updater_fetch.set_limit(Some(128 * 1024 * 1024));
+
 	let updater = Updater::new(
 		Arc::downgrade(&(service.client() as Arc<BlockChainClient>)),
 		Arc::downgrade(&sync_provider),
 		update_policy,
-		fetch.clone(),
+		updater_fetch,
 		event_loop.remote(),
 	);
 	service.add_notify(updater.clone());

util/fetch/src/client.rs

@@ -127,6 +127,11 @@ impl Client {
 		})
 	}
 
+	/// Sets a limit on the maximum download size.
+	pub fn set_limit(&mut self, limit: Option<usize>) {
+		self.limit = limit
+	}
+
 	fn client(&self) -> Result<Arc<reqwest::Client>, Error> {
 		{
 			let (ref time, ref client) = *self.client.read();
@@ -150,8 +155,8 @@ impl Fetch for Client {
 	type Result = CpuFuture<Response, Error>;
 
 	fn new() -> Result<Self, Error> {
-		// Max 50MB will be downloaded.
-		Self::with_limit(Some(50*1024*1024))
+		// Max 64MB will be downloaded.
+		Self::with_limit(Some(64 * 1024 * 1024))
 	}
 
 	fn process<F, I, E>(&self, f: F) -> BoxFuture<I, E> where