扇贝加密破解自动发送今日新词到 telegram

shanbay_remember.js

const https = require("https");

const token = ""; // change this to you telegram bot token!
const chatId = ""; // change this to your telegram chat id!
const cookie = ""; // change this to your shanbay cookie!

const PATH_API = (page) =>
  `/wordsapp/user_material_books/blozps/learning/words/today_learning_items?ipp=10&page=${page}&type_of=NEW`;

const options = {
  hostname: "apiv3.shanbay.com",
  method: "GET",
  "Content-Type": "application/json",
  headers: { Cookie: cookie },
};

class Func {
  static loop(cnt, func) {
    "v"
      .repeat(cnt)
      .split("")
      .map((_, idx) => func(idx));
  }
}

class Num {
  static get(num) {
    return num >>> 0;
  }

  static xor(a, b) {
    return this.get(this.get(a) ^ this.get(b));
  }

  static and(a, b) {
    return this.get(this.get(a) & this.get(b));
  }

  static mul(a, b) {
    const high16 = ((a & 0xffff0000) >>> 0) * b;
    const low16 = (a & 0x0000ffff) * b;
    return this.get((high16 >>> 0) + (low16 >>> 0));
  }

  static or(a, b) {
    return this.get(this.get(a) | this.get(b));
  }

  static not(a) {
    return this.get(~this.get(a));
  }

  static shiftLeft(a, b) {
    return this.get(this.get(a) << b);
  }

  static shiftRight(a, b) {
    return this.get(a) >>> b;
  }

  static mod(a, b) {
    return this.get(this.get(a) % b);
  }
}

const MIN_LOOP = 8;
const PRE_LOOP = 8;

const BAY_SH0 = 1;
const BAY_SH1 = 10;
const BAY_SH8 = 8;
const BAY_MASK = 0x7fffffff;

class Random {
  constructor() {
    this.status = [];
    this.mat1 = 0;
    this.mat2 = 0;
    this.tmat = 0;
  }

  seed(seeds) {
    Func.loop(4, (idx) => {
      if (seeds.length > idx) {
        this.status[idx] = Num.get(seeds.charAt(idx).charCodeAt());
      } else {
        this.status[idx] = Num.get(110);
      }
    });

    [, this.mat1, this.mat2, this.tmat] = this.status;

    this.init();
  }

  init() {
    Func.loop(MIN_LOOP - 1, (idx) => {
      this.status[(idx + 1) & 3] = Num.xor(
        this.status[(idx + 1) & 3],
        idx +
          1 +
          Num.mul(
            1812433253,
            Num.xor(
              this.status[idx & 3],
              Num.shiftRight(this.status[idx & 3], 30)
            )
          )
      );
    });

    if (
      (this.status[0] & BAY_MASK) === 0 &&
      this.status[1] === 0 &&
      this.status[2] === 0 &&
      this.status[3] === 0
    ) {
      this.status[0] = 66;
      this.status[1] = 65;
      this.status[2] = 89;
      this.status[3] = 83;
    }

    Func.loop(PRE_LOOP, () => this.nextState());
  }

  nextState() {
    let x;
    let y;

    [, , , y] = this.status;
    x = Num.xor(
      Num.and(this.status[0], BAY_MASK),
      Num.xor(this.status[1], this.status[2])
    );
    x = Num.xor(x, Num.shiftLeft(x, BAY_SH0));
    y = Num.xor(y, Num.xor(Num.shiftRight(y, BAY_SH0), x));
    [, this.status[0], this.status[1]] = this.status;
    this.status[2] = Num.xor(x, Num.shiftLeft(y, BAY_SH1));
    this.status[3] = y;
    this.status[1] = Num.xor(
      this.status[1],
      Num.and(-Num.and(y, 1), this.mat1)
    );
    this.status[2] = Num.xor(
      this.status[2],
      Num.and(-Num.and(y, 1), this.mat2)
    );
  }

  generate(max) {
    this.nextState();

    let t0;

    [, , , t0] = this.status;
    const t1 = Num.xor(this.status[0], Num.shiftRight(this.status[2], BAY_SH8));
    t0 = Num.xor(t0, t1);
    t0 = Num.xor(Num.and(-Num.and(t1, 1), this.tmat), t0);

    return t0 % max;
  }
}

class Node {
  constructor() {
    this.char = ".";
    this.children = {};
  }

  getChar() {
    return this.char;
  }

  getChildren() {
    return this.children;
  }

  setChar(char) {
    this.char = char;
  }

  setChildren(k, v) {
    this.children[k] = v;
  }
}

const B32_CODE = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
const B64_CODE =
  "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
const CNT = [1, 2, 2, 2, 2, 2];

class Tree {
  constructor() {
    this.random = new Random();
    this.sign = "";
    this.inter = {};
    this.head = new Node();
  }

  init(sign) {
    this.random.seed(sign);
    this.sign = sign;

    Func.loop(64, (i) => {
      this.addSymbol(B64_CODE[i], CNT[parseInt((i + 1) / 11, 10)]);
    });
    this.inter["="] = "=";
  }

  addSymbol(char, len) {
    let ptr = this.head;
    let symbol = "";

    Func.loop(len, () => {
      let innerChar = B32_CODE[this.random.generate(32)];
      while (
        innerChar in ptr.getChildren() &&
        ptr.getChildren()[innerChar].getChar() !== "."
      ) {
        innerChar = B32_CODE[this.random.generate(32)];
      }

      symbol += innerChar;
      if (!(innerChar in ptr.getChildren())) {
        ptr.setChildren(innerChar, new Node());
      }

      ptr = ptr.getChildren()[innerChar];
    });

    ptr.setChar(char);
    this.inter[char] = symbol;
    return symbol;
  }

  decode(enc) {
    let dec = "";
    for (let i = 4; i < enc.length; ) {
      if (enc[i] === "=") {
        dec += "=";
        i++;
        continue; // eslint-disable-line
      }
      let ptr = this.head;
      while (enc[i] in ptr.getChildren()) {
        ptr = ptr.getChildren()[enc[i]];
        i++;
      }
      dec += ptr.getChar();
    }

    return dec;
  }
}

const getIdx = (c) => {
  const x = c.charCodeAt();
  if (x >= 65) {
    return x - 65;
  }
  return x - 65 + 41;
};

const VERSION = 1;

const checkVersion = (s) => {
  const wi = getIdx(s[0]) * 32 + getIdx(s[1]);
  const x = getIdx(s[2]);
  const check = getIdx(s[3]);

  return VERSION >= (wi * x + check) % 32;
};

const decode = (enc) => {
  if (!checkVersion(enc)) {
    return "";
  }

  const tree = new Tree();
  tree.init(enc.substr(0, 4));
  const rawEncode = tree.decode(enc);
  let buff = Buffer.from(rawEncode, "base64");
  return JSON.parse(buff.toString("utf8"));
};

function send2telegram(text) {
  const data = JSON.stringify({
    chat_id: chatId,
    text: text,
    parse_mode: "MarkdownV2",
  });

  const options = {
    hostname: "api.telegram.org",
    port: 443,
    path: "/bot" + token + "/sendMessage",
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "Content-Length": data.length,
    },
  };

  const req = https.request(options, (res) => {
    console.log(`statusCode: ${res.statusCode}`);

    res.on("data", () => {
      console.log("succeed");
      // process.stdout.write(d);
    });
  });

  req.on("error", (error) => {
    console.error(error);
  });

  req.write(data);
  req.end();
}

function get_and_send_result(message = "", page = 1) {
  let results = "";
  options.path = PATH_API(page);
  let req = https.request(options, function (res) {
    res.on("data", function (chunk) {
      results = results + chunk;
    });
    res.on("end", function () {
      const resultJson = decode(JSON.parse(results).data);
      const totalNew = resultJson.total
      const pageCount = Math.ceil(resultJson.total / 10);
      let wordsArray = [];
      const wordsObject = resultJson.objects;
      wordsObject.forEach((w) => {
        wordsArray.push(w.vocab_with_senses.word);
      });
      if (page === 1) {
        message += `今天的 ${totalNew} 个新词\n`;
      }
      message += wordsArray.join("\n");
      message += "\n";
      if (page < pageCount) {
        page += 1;
        get_and_send_result(message, page);
      } else {
        send2telegram(message);
      }
    });
  });

  req.on("error", function (e) {
    console.log("error");
  });
  req.end();
}

get_and_send_result();

@ALL
还是写了个 ACTIONS
https://github.com/yihong0618/shanbay_remember

如果有疑问可以到 https://github.com/yihong0618/shanbay_remember 这个项目里提 issue.
这个 gist 就不更新了。