// Copyright Istio Authors

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//     http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

#![no_main]

use hyper::{http::HeaderValue, HeaderMap};

use libfuzzer_sys::fuzz_target;

use ztunnel::baggage::parse_baggage_header;

use ztunnel::proxy::BAGGAGE_HEADER;

fuzz_target!(|data: &[u8]| {

    let _ = run_baggage_header_parser(data);

    let _ = run_forwarded_header_parser(data);

});

fn run_baggage_header_parser(data: &[u8]) -> anyhow::Result<()> {

    let mut hm = HeaderMap::new();

    hm.append(BAGGAGE_HEADER, HeaderValue::from_bytes(data)?);

    parse_baggage_header(hm.get_all(BAGGAGE_HEADER))?;

    Ok(())

}

fn run_forwarded_header_parser(data: &[u8]) -> anyhow::Result<()> {

    let s = std::str::from_utf8(data)?;

    let _ = ztunnel::proxy::parse_forwarded_host(s);

    Ok(())

}