CBST2-12: Improve External HTTP Requests (#327)

Co-authored-by: eltitanb <[email protected]>
Co-authored-by: ltitanb <[email protected]>

Author: jclapis

Cargo.lock

@@ -25,6 +25,7 @@ base64 = "0.22.1"
 bimap = { version = "0.6.3", features = ["serde"] }
 blsful = "2.5"
 blst = "0.3.11"
+bytes = "1.10.1"
 cb-cli = { path = "crates/cli" }
 cb-common = { path = "crates/common" }
 cb-metrics = { path = "crates/metrics" }

Cargo.toml

@@ -55,6 +55,9 @@ extra_validation_enabled = false
 # Execution Layer RPC url to use for extra validation
 # OPTIONAL
 rpc_url = "https://ethereum-holesky-rpc.publicnode.com"
+# Timeout for any HTTP requests sent from the PBS module to other services, in seconds
+# OPTIONAL, DEFAULT: 10
+http_timeout_seconds = 10
 # Maximum number of retries for validator registrations per relay
 # OPTIONAL, DEFAULT: 3
 register_validator_retry_limit = 3

config.example.toml

@@ -13,6 +13,7 @@ axum.workspace = true
 base64.workspace = true
 bimap.workspace = true
 blst.workspace = true
+bytes.workspace = true
 cipher.workspace = true
 ctr.workspace = true
 derive_more.workspace = true
@@ -22,6 +23,7 @@ ethereum_serde_utils.workspace = true
 ethereum_ssz.workspace = true
 ethereum_ssz_derive.workspace = true
 eyre.workspace = true
+futures.workspace = true
 jsonwebtoken.workspace = true
 pbkdf2.workspace = true
 rand.workspace = true

crates/common/Cargo.toml

@@ -72,6 +72,14 @@ pub const PROXY_DIR_KEYS_DEFAULT: &str = "/proxy_keys";
 pub const PROXY_DIR_SECRETS_ENV: &str = "CB_PROXY_SECRETS_DIR";
 pub const PROXY_DIR_SECRETS_DEFAULT: &str = "/proxy_secrets";
 
+////////////////////////// MUXER //////////////////////////
+
+/// Timeout for HTTP requests, in seconds
+pub const HTTP_TIMEOUT_SECONDS_DEFAULT: u64 = 10;
+
+/// Max content length for Muxer HTTP responses, in bytes
+pub const MUXER_HTTP_MAX_LENGTH: usize = 1024 * 1024 * 10; // 10 MiB
+
 ///////////////////////// MODULES /////////////////////////
 
 /// The unique ID of the module