JustHTML/Tools/Base32EncoderAndDecoder.html at main · X-starRelight/JustHTML · GitHub

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Base32编码/解码工具 - JustHTML 只需网页</title>
  <script>
/**
 * 动态加载（强制去除缓存） CSS 的函数
 * @param {string} src - 要加载的 CSS 的 src 链接
 * @returns {Promise} 返回一个 Promise 对象，用于处理异步加载
 */
function loadStyle(src) {
  return new Promise((resolve, reject) => {
    const link = document.createElement('link');
    link.rel = 'stylesheet';
    link.href = src + '?v=' + new Date().getTime(); // 使用时间戳避免缓存
    link.async = true;
    link.onload = resolve;
    link.onerror = reject;
    document.head.appendChild(link);
  });
}

/**
 * 动态加载（强制去除缓存） JS 的函数
 * @param {string} src - 要加载的 JS 的 src 链接
 * @returns {Promise} 返回一个 Promise 对象，用于处理异步加载
 */
function loadScript(src) {
  return new Promise((resolve, reject) => {
    const script = document.createElement('script');
    script.src = src + '?v=' + new Date().getTime(); // 使用时间戳避免缓存
    script.async = true;
    script.onload = resolve;
    script.onerror = reject;
    document.head.appendChild(script);
  });
}
</script>

  <script>
    loadStyle('../assets/style.css')
    let scriptArray = [
      "../assets/AddHeader_Tools.js",
      "../assets/AddFooter.js",
      "../assets/AddIco.js",
      "../assets/AutoRun.js",
    ]

    scriptArray.forEach(script => {
      loadScript(script);
    });
  </script>

  <script src="../package/Vue/code/vue.global.prod.js"></script>
  <script type="module" src="../package/Sober/code/main.js"></script>

</head>
<body>
  <div id="app">
    <div class="container">
      <a href="../index.html" class="back-link">← 返回首页</a>

      <div class="tool-section">
        <h2>Base32编码/解码工具</h2>
        <p>将文本转换为Base32编码或将Base32编码解码为原文本</p>

        <div>
          <textarea
            v-model="inputText"
            placeholder="在此输入要编码或解码的文本..."
            rows="8"
          ></textarea>

          <button @click="encodeBase32">Base32编码</button>
          <button @click="decodeBase32">Base32解码</button>
          <button @click="clearText">清空</button>

          <div class="result" v-if="result">
            <p><strong>结果:</strong></p>
            <pre>{{ result }}</pre>
          </div>

          <div class="result" v-if="error" style="color: #ff6b6b;">
            <p><strong>错误:</strong></p>
            <p>{{ error }}</p>
          </div>
        </div>
      </div>
    </div>
  </div>

  <script>
    const { createApp, ref } = Vue;

    createApp({
      setup() {
        const inputText = ref('');
        const result = ref('');
        const error = ref('');

        // Base32字符表
        const BASE32_CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";

        // Base32编码函数
        const encodeBase32 = () => {
          error.value = '';
          try {
            result.value = base32Encode(inputText.value);
          } catch (e) {
            error.value = `编码失败: ${e.message}`;
          }
        };

        // Base32解码函数
        const decodeBase32 = () => {
          error.value = '';
          try {
            result.value = base32Decode(inputText.value);
          } catch (e) {
            error.value = `解码失败: ${e.message}`;
          }
        };

        // Base32编码实现
        function base32Encode(str) {
          if (str === "") return "";

          // 将字符串转换为字节数组
          const bytes = new TextEncoder().encode(str);

          let result = "";
          let bits = 0;
          let bitCount = 0;

          for (let i = 0; i < bytes.length; i++) {
            bits = (bits << 8) | bytes[i];
            bitCount += 8;

            // 每5个字节取一次数据
            while (bitCount >= 5) {
              const index = (bits >>> (bitCount - 5)) & 0x1F;
              result += BASE32_CHARS[index];
              bitCount -= 5;
              bits &= (1 << bitCount) - 1;
            }
          }

          // 处理余下的位
          if (bitCount > 0) {
            const index = (bits << (5 - bitCount)) & 0x1F;
            result += BASE32_CHARS[index];

            // 添加填充字符
            const paddingCount = (8 - result.length % 8) % 8;
            for (let i = 0; i < paddingCount; i++) {
              result += '=';
            }
          }

          return result;
        }

        // Base32解码实现
        function base32Decode(str) {
          if (str === "") return "";

          // 移除可能的空白字符
          str = str.replace(/\s/g, '');

          // 验证Base32字符
          if (/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ234567=]/.test(str)) {
            throw new Error("输入包含无效的Base32字符");
          }

          // 移除填充字符
          const paddedStr = str.replace(/=/g, '');
          const paddingCount = str.length - paddedStr.length;

          if (paddingCount > 7) {
            throw new Error("无效的填充字符数");
          }

          const bytes = [];
          let bits = 0;
          let bitCount = 0;

          for (let i = 0; i < paddedStr.length; i++) {
            const c = paddedStr[i];
            const index = BASE32_CHARS.indexOf(c);

            if (index === -1) {
              throw new Error(`未知的Base32字符: ${c}`);
            }

            bits = (bits << 5) | index;
            bitCount += 5;

            if (bitCount >= 8) {
              bytes.push((bits >>> (bitCount - 8)) & 0xFF);
              bitCount -= 8;
              bits &= (1 << bitCount) - 1;
            }
          }

          // 解码后不应该有多余的位
          if (bits & ((1 << bitCount) - 1)) {
            throw new Error("无效的Base32编码");
          }

          // 尝试将字节数组转换为字符串
          try {
            return new TextDecoder().decode(new Uint8Array(bytes));
          } catch (e) {
            throw new Error(`解码错误: ${e.message}`);
          }
        }

        const clearText = () => {
          inputText.value = '';
          result.value = '';
          error.value = '';
        };

        return {
          inputText,
          result,
          error,
          encodeBase32,
          decodeBase32,
          clearText
        };
      }
    }).mount('#app');
  </script>
</body>
</html>