Support code blobs compressed with zstd (paritytech#8549)

* begin maybe-compressed-blob

* fix build

* implement blob compression / decompression

* add some tests

* decode -> decompress

* decompress code if compressed

* make API of compresseed blob crate take limit as parameter

* use new API in sc-executro

* wasm-builder: compress wasm

* fix typo

* simplify

* address review

* fix wasm_project.rs

* Update primitives/maybe-compressed-blob/Cargo.toml

Co-authored-by: Andronik Ordian <write@reusable.software>

Co-authored-by: Andronik Ordian <write@reusable.software>

Cargo.toml

@@ -152,6 +152,7 @@ members = [
 	"primitives/io",
 	"primitives/keyring",
 	"primitives/keystore",
+	"primitives/maybe-compressed-blob",
 	"primitives/npos-elections",
 	"primitives/npos-elections/compact",
 	"primitives/npos-elections/fuzzer",

client/executor/Cargo.toml

@@ -30,6 +30,7 @@ sp-api = { version = "3.0.0", path = "../../primitives/api" }
 sp-wasm-interface = { version = "3.0.0", path = "../../primitives/wasm-interface" }
 sp-runtime-interface = { version = "3.0.0", path = "../../primitives/runtime-interface" }
 sp-externalities = { version = "0.9.0", path = "../../primitives/externalities" }
+sp-maybe-compressed-blob = { version = "3.0.0", path = "../../primitives/maybe-compressed-blob" }
 sc-executor-common = { version = "0.9.0", path = "common" }
 sc-executor-wasmi = { version = "0.9.0", path = "wasmi" }
 sc-executor-wasmtime = { version = "0.9.0", path = "wasmtime", optional = true }

client/executor/src/wasm_runtime.rs

@@ -283,6 +283,11 @@ pub fn create_wasm_runtime_with_code(
 	allow_missing_func_imports: bool,
 	cache_path: Option<&Path>,
 ) -> Result<Arc<dyn WasmModule>, WasmError> {
+	use sp_maybe_compressed_blob::CODE_BLOB_BOMB_LIMIT;
+
+	let code = sp_maybe_compressed_blob::decompress(code, CODE_BLOB_BOMB_LIMIT)
+		.map_err(|e| WasmError::Other(format!("Decompression error: {:?}", e)))?;
+
 	match wasm_method {
 		WasmExecutionMethod::Interpreted => {
 			// Wasmi doesn't have any need in a cache directory.
@@ -292,7 +297,7 @@ pub fn create_wasm_runtime_with_code(
 			drop(cache_path);
 
 			sc_executor_wasmi::create_runtime(
-				code,
+				&code,
 				heap_pages,
 				host_functions,
 				allow_missing_func_imports,
@@ -301,7 +306,7 @@ pub fn create_wasm_runtime_with_code(
 		}
 		#[cfg(feature = "wasmtime")]
 		WasmExecutionMethod::Compiled => {
-			let blob = sc_executor_common::runtime_blob::RuntimeBlob::new(code)?;
+			let blob = sc_executor_common::runtime_blob::RuntimeBlob::new(&code)?;
 			sc_executor_wasmtime::create_runtime(
 				sc_executor_wasmtime::CodeSupplyMode::Verbatim { blob },
 				sc_executor_wasmtime::Config {