docs/examples: 扫码登录改为官方 POST+local_token_list+iLink-App-Id/ClientVersion 头 + 完整状态机 + 换码竞态警告
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@@ -19,6 +19,9 @@
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static const std::string BASE_URL = "https://ilinkai.weixin.qq.com";
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static const std::string STATE_FILE = "bridge-state.json";
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// 扫码轮询 base；收到 scaned_but_redirect 时切换，get_bot_qrcode 仍走固定 BASE_URL
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static std::string apiBaseUrl = BASE_URL;
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// ---------- 状态: bot_token / 游标（极简 key=value 行存储） ----------
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static std::string g_token, g_cursor;
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@@ -63,8 +66,11 @@ static std::string b64(const std::string &in) { // 极简 base64
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}
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// 返回空 optional 表示传输层错误（超时/断网）；业务错误看响应内容
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static std::optional<std::string> http(const std::string &method, const std::string &path,
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const std::string &body = "", long timeout = 45) {
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// 注: get_bot_qrcode / get_qrcode_status（预绑定阶段）无 token 时不带 Authorization，
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// 但 iLink-App-Id / iLink-App-ClientVersion / AuthorizationType / X-WECHAT-UIN 恒带。
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static std::optional<std::string> http(const std::string &base, const std::string &method,
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const std::string &path, const std::string &body = "",
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long timeout = 45) {
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CURL *c = curl_easy_init();
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std::string resp;
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static thread_local std::mt19937 rng{std::random_device{}()};
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@@ -74,13 +80,16 @@ static std::optional<std::string> http(const std::string &method, const std::str
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hdrs = curl_slist_append(hdrs, "AuthorizationType: ilink_bot_token");
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std::string uin = "X-WECHAT-UIN: " + b64(std::to_string(rng())); // 防重放
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hdrs = curl_slist_append(hdrs, uin.c_str());
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// 2.4.8 -> (2&0xff)<<16 | (4&0xff)<<8 | (8&0xff) = 132104（数字字符串，非 "1"）
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hdrs = curl_slist_append(hdrs, "iLink-App-Id: bot");
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hdrs = curl_slist_append(hdrs, "iLink-App-ClientVersion: 132104");
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std::string auth;
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if (!g_token.empty()) {
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auth = "Authorization: Bearer " + g_token;
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hdrs = curl_slist_append(hdrs, auth.c_str());
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}
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std::string url = BASE_URL + path;
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std::string url = base + path;
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curl_easy_setopt(c, CURLOPT_URL, url.c_str());
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curl_easy_setopt(c, CURLOPT_HTTPHEADER, hdrs);
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curl_easy_setopt(c, CURLOPT_WRITEFUNCTION, on_write);
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@@ -114,19 +123,77 @@ static std::string esc(const std::string &s) { // 最小 JSON 转义
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return o;
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}
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// ---------- 接口1+2: 扫码登录（get_bot_qrcode / get_qrcode_status） ----------
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// ---------- 接口1: POST /ilink/bot/get_bot_qrcode 获取登录二维码（官方姿势） ----------
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static std::optional<std::string> fetch_qrcode() {
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// 官方为 POST + body {"local_token_list":[]}，非裸 GET。首次绑定传空数组；
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// 若已持久化其它 bot_token 可收集传入（最多 10 个），官方据此识别触发 binded_redirect。
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return http(BASE_URL, "POST", "/ilink/bot/get_bot_qrcode?bot_type=3",
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"{\"local_token_list\":[]}", 15);
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}
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// ---------- 接口2: GET /ilink/bot/get_qrcode_status 轮询扫码状态（完整状态机） ----------
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static void login() {
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auto qr = http("GET", "/ilink/bot/get_bot_qrcode?bot_type=3", "", 15);
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// 状态机: wait / scaned / scaned_but_redirect / need_verifycode /
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// verify_code_blocked / binded_redirect / confirmed / expired
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// 两大坑（务必读 docs/02 §4.5）：
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// ① 码服务端 TTL≈60s，生成后须在窗口内扫（超窗服务端自返回 expired，此处换新码）。
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// ② 「换码竞态」：一旦收到 scaned（或 scaned_but_redirect / need_verifycode），
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// 绝不能再换码——换码会砍掉"扫码→确认"会话，微信端显示成功但后端永远收不到 confirmed。
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auto qr = fetch_qrcode();
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if (!qr) { std::cerr << "获取二维码失败\n"; exit(1); }
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std::string qrcode = pick(*qr, "qrcode");
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std::cout << "请用微信扫码: " << pick(*qr, "qrcode_img_content") << "\n";
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std::cout << "(二维码内容即上面的 liteapp URL，请用二维码库编码展示；勿把 qrcode 字段当二维码)\n";
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std::string verifyCode;
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for (int i = 0; i < 480; i++) { // 最多等 8 分钟
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auto s = http("GET", "/ilink/bot/get_qrcode_status?qrcode=" + qrcode, "", 15);
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if (s && pick(*s, "status") == "confirmed") { // wait → scaned → confirmed
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g_token = pick(*s, "bot_token");
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save_state();
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std::cout << "登录成功\n";
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return;
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std::string path = "/ilink/bot/get_qrcode_status?qrcode=" + qrcode;
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if (!verifyCode.empty()) path += "&verify_code=" + verifyCode;
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auto s = http(apiBaseUrl, "GET", path, "", 15);
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if (s) {
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std::string status = pick(*s, "status");
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if (status == "confirmed") {
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g_token = pick(*s, "bot_token");
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save_state();
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std::cout << "登录成功\n";
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return;
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} else if (status == "scaned") {
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verifyCode.clear();
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std::cout << "已扫码，请在手机上确认...（此后绝不换码，避免砍掉确认会话）\n";
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} else if (status == "scaned_but_redirect") {
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verifyCode.clear();
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std::string host = pick(*s, "redirect_host");
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if (!host.empty()) {
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apiBaseUrl = "https://" + host;
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std::cout << "IDC 重定向，切换轮询至 " << apiBaseUrl << "\n";
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}
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} else if (status == "need_verifycode") {
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std::cout << "请在手机微信上输入显示的数字后回车: " << std::flush;
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std::getline(std::cin, verifyCode);
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continue;
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} else if (status == "verify_code_blocked") {
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verifyCode.clear();
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std::cout << "配对码多次输入错误，重新获取二维码\n";
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qr = fetch_qrcode();
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if (!qr) { std::cerr << "获取二维码失败\n"; exit(1); }
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qrcode = pick(*qr, "qrcode");
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std::cout << "新二维码: " << pick(*qr, "qrcode_img_content") << "\n";
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continue;
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} else if (status == "binded_redirect") {
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std::cout << "该 bot 已绑定过本实例，视为连接成功\n";
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return;
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} else if (status == "expired") {
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// 码过期（服务端作废）→ 换新码；仅在 expired 时换，scaned 后绝不换
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verifyCode.clear();
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std::cout << "二维码已过期，重新获取\n";
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qr = fetch_qrcode();
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if (!qr) { std::cerr << "获取二维码失败\n"; exit(1); }
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qrcode = pick(*qr, "qrcode");
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std::cout << "新二维码: " << pick(*qr, "qrcode_img_content") << "\n";
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continue;
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} else {
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std::cerr << "未知状态: " << status << "\n";
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}
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}
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std::this_thread::sleep_for(std::chrono::seconds(1));
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}
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@@ -147,7 +214,7 @@ static void send_text(const std::string &to, const std::string &text, const std:
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"\"message_type\":2,\"message_state\":2,\"context_token\":\"" + esc(token) + "\","
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"\"item_list\":[{\"type\":1,\"text_item\":{\"text\":\"" +
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esc(text.substr(i, 1500)) + "\"}}]}}";
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http("POST", "/ilink/bot/sendmessage", body, 15);
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http(BASE_URL, "POST", "/ilink/bot/sendmessage", body, 15);
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}
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}
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@@ -155,7 +222,7 @@ static void send_text(const std::string &to, const std::string &text, const std:
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[[noreturn]] static void poll_loop() {
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int failures = 0;
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for (;;) {
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auto resp = http("POST", "/ilink/bot/getupdates",
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auto resp = http(BASE_URL, "POST", "/ilink/bot/getupdates",
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"{\"get_updates_buf\":\"" + esc(g_cursor) + "\","
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"\"base_info\":{\"channel_version\":\"1.0.2\"}}", 45);
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if (!resp) { // 超时/网络错误
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