Method handle_client

server/src/server/http_server.cpp:1231–1386

// ─── Client thread ──────────────────────────────────────────────────────

void HttpServer::handle_client(int fd) {
    HttpRequest hr;
    if (!read_http_request(fd, hr)) {
        send_error(fd, 400, "bad HTTP request");
        socket_close(fd);
        return;
    }

    // CORS preflight.
    if (hr.method == "OPTIONS") {
        send_response(fd, 204, "", "");
        socket_close(fd);
        return;
    }

    // Health check.
    if (hr.method == "GET" && (hr.path == "/health" || hr.path == "/")) {
        send_response(fd, 200, "application/json", "{\"status\":\"ok\"}\n");
        socket_close(fd);
        return;
    }

    // Introspection: server config + cache stats + arch + capabilities.
    if (hr.method == "GET" && hr.path == "/props") {
        json body = build_props_body(config_, prefix_cache_, tool_memory_);
        send_response(fd, 200, "application/json", body.dump() + "\n");
        socket_close(fd);
        return;
    }

    // Status page: serve HTML file from disk.
    if (hr.method == "GET" && hr.path == "/status") {
        if (status_html_path_.empty()) {
            send_error(fd, 404,
                "status.html not found. Set DFLASH_SHARE_DIR or place it in share/status.html");
            socket_close(fd);
            return;
        }
        std::ifstream ifs(status_html_path_);
        if (!ifs.is_open()) {
            send_error(fd, 500, "failed to open status.html");
            socket_close(fd);
            return;
        }
        std::ostringstream oss;
        oss << ifs.rdbuf();
        send_response(fd, 200, "text/html; charset=utf-8", oss.str());
        socket_close(fd);
        return;
    }

    // Status JSON snapshot (for non-SSE clients / debugging).
    if (hr.method == "GET" && hr.path == "/status/json") {
        send_response(fd, 200, "application/json",
            status_.to_json().dump(-1, ' ', false, json::error_handler_t::replace) + "\n");
        socket_close(fd);
        return;
    }