tonhowtf/omniget · error

Proxy must include a scheme, e.g. http://127.0.0.1:7897

Error message

Proxy must include a scheme, e.g. http://127.0.0.1:7897

What it means

`parse_proxy` in the omniget CLI splits the raw proxy string on "://" and bails if no scheme separator is present, because the proxy type (http/https/socks5) is derived from the scheme. A bare host:port gives no way to pick a protocol.

Solutions

  1. Prefix the proxy with its scheme: http://127.0.0.1:7897 (or https:// / socks5:// as appropriate)
  2. If unsure of protocol, try http:// first for local proxies like Clash on 7897
  3. Fix the exported env var or CLI config to include the scheme

Example fix

// before
--proxy 127.0.0.1:7897
// after
--proxy http://127.0.0.1:7897
Defensive patterns

Strategy: validation

Validate before calling

fn proxy_has_scheme(raw: &str) -> bool { raw.contains("://") }
ensure!(proxy_has_scheme(proxy), "proxy must include a scheme, e.g. http://127.0.0.1:7897");

Try / catch

let settings = parse_proxy(raw).with_context(|| format!("invalid --proxy value {raw:?}"))?;

Prevention

When it happens

Trigger: Passing --proxy 127.0.0.1:7897 (or any scheme-less value) to init_cli_runtime's proxy option instead of http://127.0.0.1:7897.

Common situations: Users copying a proxy address from tooling that omits the scheme (common with Clash/V2Ray local ports); shell config exporting HTTP_PROXY without scheme; docs examples showing bare host:port.

Understand the failure class

Background: "Invalid URL" errors: why new URL(), URI.parse, and reqwest::Url reject your string — missing scheme, whitespace, and bad path format — this error's family across 39 libraries.

Related errors


AI-assisted analysis of tonhowtf/omniget@8600b91f42 (2026-09-12). Data as JSON: /api/errors/b871bcc7762ec99e. Report an issue: GitHub.

Appendix: source

Thrown at src-tauri/omniget-cli/src/commands/common.rs:41

    if let Some(proxy_url) = proxy {
        http_client::init_proxy(parse_proxy(proxy_url)?);
    } else {
        http_client::init_proxy(ProxySettings::default());
    }

    Ok(())
}

fn init_cookie_provider() {
    ytdlp::set_global_cookie_file_fn(|| {
        reporter::default_cookie_path().map(|path| path.to_string_lossy().to_string())
    });
}

fn parse_proxy(raw: &str) -> Result<ProxySettings> {
    let (scheme, rest) = raw
        .split_once("://")
        .ok_or_else(|| anyhow!("Proxy must include a scheme, e.g. http://127.0.0.1:7897"))?;

    let proxy_type = match scheme {
        "http" | "https" | "socks5" => scheme.to_string(),
        other => return Err(anyhow!("Unsupported proxy scheme: {}", other)),
    };

    let authority = rest.split('/').next().unwrap_or(rest);
    let (auth, host_port) = match authority.rsplit_once('@') {
        Some((auth, host_port)) => (Some(auth), host_port),
        None => (None, authority),
    };

    let (host, port) = host_port
        .rsplit_once(':')
        .ok_or_else(|| anyhow!("Proxy must include host and port, e.g. http://127.0.0.1:7897"))?;

    if host.is_empty() {
        return Err(anyhow!("Proxy host cannot be empty"));

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