feat: complete local version to overwrite remote

flask-dev-api/blueprints/base64_codec.py

@@ -0,0 +1,60 @@
+# -*- coding: utf-8 -*-
+"""
+base64-de-in-code 编解码蓝图
+"""
+import base64
+from flask import Blueprint, render_template, request, jsonify
+
+bp = Blueprint('base64_codec', __name__, url_prefix='/base64-de-in-code')
+
+
+def _fallback_decode(data_bytes):
+    """降级解码：当 encoding_utils 不可用时使用"""
+    for enc in ['utf-8', 'gbk', 'gb2312', 'cp936']:
+        try:
+            return data_bytes.decode(enc)
+        except UnicodeDecodeError:
+            continue
+    return "解码失败，无法识别编码。"
+
+
+@bp.route('/')
+def page():
+    return render_template('base64.html')
+
+
+@bp.route('/decode', methods=['POST'])
+def decode():
+    data = request.get_json()
+    base64_input = data.get('input_text', '').strip()
+    if not base64_input:
+        return jsonify({'success': False, 'error': '输入不能为空。'})
+    try:
+        decoded_bytes = base64.b64decode(base64_input)
+    except Exception as e:
+        return jsonify({'success': False, 'error': f'Base64 解码失败: {str(e)}'})
+
+    try:
+        from utils.encoding_utils import detect_and_decode
+        decoded_result = detect_and_decode(decoded_bytes)
+    except Exception:
+        decoded_result = _fallback_decode(decoded_bytes)
+
+    return jsonify({'success': True, 'result': decoded_result})
+
+
+@bp.route('/encode', methods=['POST'])
+def encode():
+    data = request.get_json()
+    text_to_encode = data.get('text_to_encode', '')
+    encoding = data.get('encoding', 'utf-8')
+    if text_to_encode is None:
+        return jsonify({'success': False, 'error': '输入不能为空。'})
+    try:
+        encoded_bytes = text_to_encode.encode(encoding)
+    except LookupError:
+        return jsonify({'success': False, 'error': f'未知的编码格式: {encoding}'})
+    except UnicodeEncodeError as e:
+        return jsonify({'success': False, 'error': f'编码失败: {str(e)}'})
+    encoded_string = base64.b64encode(encoded_bytes).decode('ascii')
+    return jsonify({'success': True, 'result': encoded_string})