clash-verge-rev/clash-verge-rev · error · anyhow::Error

Invalid DNS name: {host}

Error message

Invalid DNS name: {host}

What it means

Error "Invalid DNS name: {host}" thrown in clash-verge-rev/clash-verge-rev.

Source

Thrown at src-tauri/src/feat/clash.rs:169

        let mut buf = BytesMut::with_capacity(1024);

        if is_https {
            let stream = match proxy_port {
                Some(pp) => {
                    let mut s = TcpStream::connect(format!("127.0.0.1:{pp}")).await?;
                    s.write_all(format!("CONNECT {host}:{port} HTTP/1.1\r\nHost: {host}:{port}\r\n\r\n").as_bytes())
                        .await?;
                    s.read_buf(&mut buf).await?;
                    if !buf.windows(3).any(|w| w == b"200") {
                        return Err(anyhow::anyhow!("Proxy CONNECT failed"));
                    }
                    s
                }
                None => TcpStream::connect(format!("{host}:{port}")).await?,
            };
            let connector = tokio_rustls::TlsConnector::from(Arc::clone(&TLS_CONFIG));
            let server_name = rustls::pki_types::ServerName::try_from(host.as_str())
                .map_err(|_| anyhow::anyhow!("Invalid DNS name: {host}"))?
                .to_owned();
            connector.connect(server_name, stream).await?;
        } else {
            let (mut stream, req) = match proxy_port {
                Some(pp) => (
                    TcpStream::connect(format!("127.0.0.1:{pp}")).await?,
                    format!("HEAD {url} HTTP/1.1\r\nHost: {host}\r\nConnection: close\r\n\r\n"),
                ),
                None => (
                    TcpStream::connect(format!("{host}:{port}")).await?,
                    format!("HEAD / HTTP/1.1\r\nHost: {host}\r\nConnection: close\r\n\r\n"),
                ),
            };
            stream.write_all(req.as_bytes()).await?;
            let _ = stream.read(&mut buf).await?;
        }

        // frontend treats 0 as timeout

View on GitHub (pinned to 5cad0f2799)

When it happens

Trigger: Thrown at src-tauri/src/feat/clash.rs:169 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of clash-verge-rev/clash-verge-rev@5cad0f2799 (2026-08-12). Data as JSON: /api/errors/2d0f6a129faab560. Report an issue: GitHub.