Function sendCaptcha

pmcaptcha/pmcaptcha.ts:872–1026

(client: TelegramClient, userId: number)

  }

  const mode    = cfg.mode();
  const timeout = cfg.timeout();
  const tries   = cfg.maxTries();
  const actions = cfg.failActions();
  const custom  = cfg.prompt();

  const actionDesc = actions.length
    ? actions.map(a => FAIL_ACTION_LABEL[a] ?? a).join("、")
    : "仅归档并静音";

  function buildFooter(): string {
    const lines: string[] = [];
    if (timeout > 0) lines.push(`⏱ 验证时间：<b>${htmlEscape(timeout)}</b> 秒`);
    if (tries   > 0) lines.push(`🔢 剩余次数：<b>${htmlEscape(tries)}</b> 次`);
    lines.push(`⚠️ 验证失败将会：${htmlEscape(actionDesc)}`);
    return lines.length ? "\n\n" + lines.join("\n") : "";
  }

  let answer   = "";
  let question = "";
  let isQA     = false;
  const msgIds: number[] = [];

  try {
    switch (mode) {

      case CaptchaMode.MATH: {
        const { question: q, answer: ans } = mathQuestion();
        answer   = ans;
        question = q;
        const footer = buildFooter();
        const text = custom
          ? htmlEscape(custom).replace("{question}", htmlEscape(q))
          : `🔒 <b>人机验证</b>\n\n请回复以下算式的答案：\n\n${codeTag(`${q} = ?`)}${footer}`;
        const m = await client.sendMessage(userId, { message: text, parseMode: "html" });
        msgIds.push(m.id);
        break;
      }

      case CaptchaMode.TEXT: {
        const kw     = cfg.keyword();
        const footer = buildFooter();
        if (kw === "我同意" && !custom) {
          const qa = textQuestion();
          answer   = qa.answer;
          question = qa.question;
          isQA     = true;
          const text = `🔒 <b>人机验证</b>\n\n请回答以下问题：\n\n<b>${htmlEscape(qa.question)}</b>${footer}`;
          const m = await client.sendMessage(userId, { message: text, parseMode: "html" });
          msgIds.push(m.id);
        } else {
          answer   = kw;
          question = kw;
          isQA     = false;
          const text = custom
            ? htmlEscape(custom).replace("{keyword}", htmlEscape(kw))
            : `🔒 <b>人机验证</b>\n\n请回复以下关键词以证明你不是机器人：\n\n${codeTag(kw)}${footer}`;
          const m = await client.sendMessage(userId, { message: text, parseMode: "html" });