File size: 2,249 Bytes
88c4c60 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | /**
* Detect CLI tool identity from request headers/body.
* Used to determine if a request can be passed through losslessly.
*/
// Map of CLI tool identifiers to provider IDs they are "native" to
const NATIVE_PAIRS = {
"claude": ["claude", "anthropic"],
"gemini-cli": ["gemini-cli"],
"antigravity": ["antigravity"],
"codex": ["codex"],
};
/**
* Detect which CLI tool is making the request.
* Returns one of: "claude" | "gemini-cli" | "antigravity" | "codex" | null
* @param {object} headers - Lowercase header key/value object
* @param {object} body - Parsed request body
*/
export function detectClientTool(headers = {}, body = {}) {
const ua = (headers["user-agent"] || "").toLowerCase();
const xApp = (headers["x-app"] || "").toLowerCase();
const openaiIntent = (headers["openai-intent"] || "").toLowerCase();
const initiator = (headers["x-initiator"] || headers["X-Initiator"] || "").toLowerCase();
// Antigravity: detected via body field (not header)
if (body.userAgent === "antigravity") return "antigravity";
// GitHub Copilot / OAI compatible extension using Copilot chat headers
if (ua.includes("githubcopilotchat") || openaiIntent === "conversation-panel" || initiator === "user") {
return "github-copilot";
}
// Claude Code / Claude CLI
if (ua.includes("claude-cli") || ua.includes("claude-code") || xApp === "cli") return "claude";
// Gemini CLI
if (ua.includes("gemini-cli")) return "gemini-cli";
// Codex CLI
if (ua.includes("codex-cli")) return "codex";
// DeepSeek TUI
if (ua.includes("deepseek-tui")) return "deepseek-tui";
return null;
}
/**
* Check if this CLI tool + provider pair should be passed through losslessly.
* @param {string|null} clientTool - Result of detectClientTool()
* @param {string} provider - Provider ID (e.g. "claude", "gemini-cli")
*/
export function isNativePassthrough(clientTool, provider) {
if (!clientTool) return false;
const nativeProviders = NATIVE_PAIRS[clientTool];
if (!nativeProviders) return false;
// Support anthropic-compatible-* variants
const normalizedProvider = provider.startsWith("anthropic-compatible")
? "anthropic"
: provider;
return nativeProviders.includes(normalizedProvider);
}
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