diem_config/config/
json_rpc_config.rs

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// Copyright (c) The Diem Core Contributors
// SPDX-License-Identifier: Apache-2.0

// Copyright 2021 Conflux Foundation. All rights reserved.
// Conflux is free software and distributed under GNU General Public License.
// See http://www.gnu.org/licenses/

use crate::utils;
use serde::{Deserialize, Serialize};
use std::net::SocketAddr;

#[derive(Clone, Debug, Deserialize, PartialEq, Serialize)]
#[serde(default, deny_unknown_fields)]
pub struct JsonRpcConfig {
    pub address: SocketAddr,
    pub batch_size_limit: u16,
    pub page_size_limit: u16,
    pub content_length_limit: usize,
    pub tls_cert_path: Option<String>,
    pub tls_key_path: Option<String>,
}

pub const DEFAULT_JSON_RPC_ADDRESS: &str = "127.0.0.1";
pub const DEFAULT_JSON_RPC_PORT: u16 = 8080;
pub const DEFAULT_BATCH_SIZE_LIMIT: u16 = 20;
pub const DEFAULT_PAGE_SIZE_LIMIT: u16 = 1000;
pub const DEFAULT_CONTENT_LENGTH_LIMIT: usize = 32 * 1024; // 32kb

impl Default for JsonRpcConfig {
    fn default() -> JsonRpcConfig {
        JsonRpcConfig {
            address: format!(
                "{}:{}",
                DEFAULT_JSON_RPC_ADDRESS, DEFAULT_JSON_RPC_PORT
            )
            .parse()
            .unwrap(),
            batch_size_limit: DEFAULT_BATCH_SIZE_LIMIT,
            page_size_limit: DEFAULT_PAGE_SIZE_LIMIT,
            content_length_limit: DEFAULT_CONTENT_LENGTH_LIMIT,
            tls_cert_path: None,
            tls_key_path: None,
        }
    }
}

impl JsonRpcConfig {
    pub fn randomize_ports(&mut self) {
        self.address.set_port(utils::get_available_port());
    }
}