使用Flask阻止输入类型url的默认行为

from flask import Flask, request, abort

app = Flask(__name__)

@app.before_request
def before_request():
    if request.method == 'POST' and request.content_type == 'application/x-www-form-urlencoded':
        # 判断请求方法为POST且Content-Type为application/x-www-form-urlencoded
        url = request.form.get('url')
        if url and url.startswith('http://'):
            # 判断输入的url以'http://'开头
            abort(400)  # 返回400错误，表示请求错误

@app.route('/', methods=['GET', 'POST'])
def index():
    if request.method == 'POST':
        # 处理POST请求
        return '处理POST请求'
    else:
        # 处理GET请求
        return '处理GET请求'

if __name__ == '__main__':
    app.run()