Function hookFetch

KeepChatGPT.user.js:2149–2407

()

    });

    const hookFetch = function () {
        const rawSendBeacon = navigator.sendBeacon?.bind(navigator);
        unsafeWindow.fetch = new Proxy(fetch, {
            apply: function (target, thisArg, argumentsList) {
                let fetchReqUrl = "";
                let fetchReqOptions = {};

                if (typeof argumentsList[0] === "string") {
                    fetchReqUrl = argumentsList[0];
                    fetchReqOptions = argumentsList[1] || {};
                } else if (argumentsList[0] instanceof Request) {
                    fetchReqOptions = argumentsList[0];
                    fetchReqUrl = fetchReqOptions.url;
                }

                const fetchReqMethod = (
                    argumentsList[1]?.method ||
                    fetchReqOptions?.method ||
                    "GET"
                ).toUpperCase();

                try {
                    // 取消审计1：直接返回一个空的审核结果。
                    if (
                        gv("k_closeModer", false) &&
                        typeof fetchReqUrl === "string" &&
                        /\/backend-api\/moderations(\?|$)/.test(fetchReqUrl)
                    ) {
                        return Promise.resolve(
                            new Response(JSON.stringify({}), {
                                status: 200,
                                headers: {
                                    "Content-Type": "application/json",
                                },
                            }),
                        );
                        // 取消审计2：发送会话请求前，关闭 modapi 支持位。
                    } else if (
                        gv("k_closeModer", false) &&
                        typeof fetchReqUrl === "string" &&
                        /\/backend-api\/conversation(\?|$)/.test(fetchReqUrl) &&
                        argumentsList[1] &&
                        typeof argumentsList[1].body === "string"
                    ) {
                        const post_body = JSON.parse(argumentsList[1].body);
                        post_body.supports_modapi = false;
                        argumentsList[1].body = JSON.stringify(post_body);
                        // 拦截跟踪：必须返回标准 Response，避免调用方执行 text/json 时崩溃。
                    } else if (
                        gv("k_intercepttracking", false) &&
                        isTrackingRequest(fetchReqUrl)
                    ) {
                        console.log(
                            `KeepChatGPT: ${tl("拦截跟踪")}: ${fetchReqUrl}`,
                        );
                        return Promise.resolve(buildBlockedTrackingResponse());
                        // fix openai bug：补一个稳定的 compliance 响应。
                    } else if (