Python-与佛伦禅

这个是自制Python服务器版，提供了 web 和 api 两种使用方式，由 [简易Python版](/doc/581/) 修改而来

`app.py`
```python
from flask import Flask, render_template, request
from Crypto.Cipher import AES
from random import choice
from Crypto.Util.Padding import pad, unpad

IV = b'zwzwzwzwzwzwzwzw'
TUDOU = [
    '滅', '苦', '婆', '娑', '耶', '陀', '跋', '多', '漫', '都', '殿', '悉', '夜', '爍', '帝', '吉',
    '利', '阿', '無', '南', '那', '怛', '喝', '羯', '勝', '摩', '伽', '謹', '波', '者', '穆', '僧',
    '室', '藝', '尼', '瑟', '地', '彌', '菩', '提', '蘇', '醯', '盧', '呼', '舍', '佛', '參', '沙',
    '伊', '隸', '麼', '遮', '闍', '度', '蒙', '孕', '薩', '夷', '迦', '他', '姪', '豆', '特', '逝',
    '朋', '輸', '楞', '栗', '寫', '數', '曳', '諦', '羅', '曰', '咒', '即', '密', '若', '般', '故',
    '不', '實', '真', '訶', '切', '一', '除', '能', '等', '是', '上', '明', '大', '神', '知', '三',
    '藐', '耨', '得', '依', '諸', '世', '槃', '涅', '竟', '究', '想', '夢', '倒', '顛', '離', '遠',
    '怖', '恐', '有', '礙', '心', '所', '以', '亦', '智', '道', '。', '集', '盡', '死', '老', '至'
]

BYTEMARK = ['冥', '奢', '梵', '呐', '俱', '哆', '怯', '諳', '罰', '侄', '缽', '皤']

app = Flask(__name__)

def Encrypt(plaintext, key):
    if not plaintext:
        return ''  # 如果 plaintext 为空，则返回空字符串并跳过程序执行
    key = key[:32].ljust(32, b'\x00')
    data = plaintext.encode('utf-16le')
    pads = (-len(data)) % 16
    data = data + bytes(pads * [pads])
    cryptor = AES.new(key, AES.MODE_CBC, IV)
    result = cryptor.encrypt(data)
    return '佛曰：' + ''.join([TUDOU[i] if i < 128 else choice(BYTEMARK) + TUDOU[i-128] for i in result])

def Decrypt(ciphertext, key):
    key = key[:32].ljust(32, b'\x00')
    if ciphertext.startswith('佛曰：'):
        ciphertext = ciphertext[3:]
        if not ciphertext:
            return ''  # 如果 ciphertext 为空，则返回空字符串并跳过程序执行
        data = b''
        i = 0
        while i < len(ciphertext):
            if ciphertext[i] in BYTEMARK:
                i = i + 1
                data = data + bytes([TUDOU.index(ciphertext[i]) + 128])
            else:
                data = data + bytes([TUDOU.index(ciphertext[i])])
            i = i + 1
        cryptor = AES.new(key, AES.MODE_CBC, IV)
        result = cryptor.decrypt(data)
        flag = result[-1]
        if flag < 16 and result[-flag] == flag:
            result = result[:-flag]
        return result.decode('utf-16le')
    else:
        return ''  # 密文格式不正确，必须为"佛曰："开头

@app.route('/', methods=['GET','POST'])
def index():
    if request.method == 'POST':
        bear = request.form.get('bear')
        pw = request.form.get('pw')
        moeEncode = request.form.get('moeEncode')
        moeDecode = request.form.get('moeDecode')
        key = request.form.get('key')
        if key == "":
            key == "zwzw"
        print(request.form)
        if 'moeEncode' in request.form:
            pw = Encrypt(bear, key.encode())
            print(moeDecode)
        elif 'moeDecode' in request.form:
            bear = Decrypt(pw, key.encode())
            print(moeEncode)
        return render_template('index.html', bear=bear, pw=pw)
    return render_template('index.html')

# API请求,提供了GET和POST两种方式,方便适配开发板的请求
@app.route('/api', methods=['GET','POST'])
def api():
    # 判断请求类型,post用于处理json方式
    if request.method == 'POST':
        # 获取json
        json_data = request.get_json()
    # web访问属于get方式,http://localhost:5050/api?pt=你好呀&key=233 这种格式
    elif request.method == 'GET':
        # 获取参数
        json_data = request.args
    print(json_data)
    pt = json_data.get('pt')  # 明文
    ct = json_data.get('ct')  # 密文
    key = json_data.get('key')  # key
    if key == None:
        key = "zwzw"
    if not pt == None:
        ct = Encrypt(pt, key.encode())
        print(ct)
        return ct
    elif not ct == None:
        pt = Decrypt(ct, key.encode())
        print(pt)
        return pt
    else:
        return "格式不正确", 404

# 判断当前文件是否作为脚本被执行
print("启动服务...")
print("Web访问：http://localhost:5050 \n\
      API(Get)使用：http://localhost:5050/api?pt=你好呀&key=233 \n\
      API(Post)使用：http://localhost:5050,json发送,pt(明文),ct(密文),key(键值)")
if __name__ == '__main__':
    app.run(host='0.0.0.0', port=5050)
```

`templates\index.html`，web主页
```html
<!DOCTYPE html>
<html>
<head>

<title>与佛论禅-造物者W</title>
<style>
body {
	justify-content: center;
}
h1 {
	text-align: center;
	font-weight: bold;
	font-size: calc(5vw + 0.5rem);
}
.container {
	width: 100%;
}

.container .control {
	width: 100%;
	display: grid;
	grid-template-columns: 1fr 1fr 1fr;
	margin-bottom: 10px;
	margin-top: 10px;
}
@media (max-width:400px) {
.container .control {
	display: grid;
	grid-template-columns: 1fr;
}
}
.container .control .moeBtn {
	margin-top: 0px;
	margin-right: 0px;
	margin-bottom: 0px;
	margin-left: 0px;
}
.form-group {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	align-items: flex-start;
	margin-bottom: 10px;
	border: 2px solid #0089F6;
}
.form-group textarea {
	width: 100%;
	height: calc(50vh - 5vw - 0.5rem - 80px);
	padding: 5px;
	font-size: calc(2vw + 0.5rem);
}
.container .control #key {
	min-height: 30px;
	font-size: 25px;
}
</style>
</head>

<body>
<form action="/" method="post">
  <div class="container">
    <h1>与佛论禅</h1>
    <div class="form-group">
      <textarea id="bear" name="bear" placeholder="施主，此次前来，不知有何贵干？">{{ bear }}</textarea>
    </div>
    <div class="control">
      <input name="moeEncode" type="submit" class="moeBtn" value="听佛说世间的奥秘 ↓↓">
      <textarea name="key" id="key" style="height: 2vh;" placeholder="键值(可选)">{{ key }}</textarea>
      <input name="moeDecode" type="submit" class="moeBtn" value="领悟佛所言的真谛 ↑↑">
    </div>
    <div class="form-group">
      <textarea id="pw" name="pw" placeholder="佛说世间妙语">{{ pw }}</textarea>
    </div>
  </div>
</form>
</body>
</html>
```

`Dockerfile` 部署文件
```bash
# 使用 python 作为底层镜像
FROM python:3.8-slim-buster
# 设置工作目录
WORKDIR /app
# 安装所需环境
RUN pip install flask pycryptodome -i https://pypi.tuna.tsinghua.edu.cn/simple
# 复制当前目录所有文件到工作目录
COPY . .
# 设置外部访问端口提示(需和内容一致)
EXPOSE 5050
# 容器执行时运行命令
CMD ["python", "app.py"]
```

构建并部署
```bash
docker build -t dhyana:latest .		# 构建镜像
docker run -d --name dhyana -p 5050:5050 dhyana:latest		# 部署镜像

# 直接使用构建好的
docker run -d --name dhyana -p 5050:5050 nas.918178.xyz:10088/library/dhyana:latest
```