如何检查邮件内容中的超链接(最好通过Discord.py) [英] How to check for hyperlinks in the contents of a message (through Discord.py preferably)

问题描述

我希望能够检测出不和谐的用户何时发送URL链接(无论是视频，网站还是不和谐的邀请)，并保存该链接，是否存在任何预先存在的库?

I want to be able to detect when a discord user sends a URL link, whether it be a video, website, or discord invite, and to save the link, are there any pre-existing libraries?

推荐答案

正则表达式是我最喜欢的解决方案.

Regex is my favourite solution for this.

    def _match_url(url):
        regex = re.compile(
            "(([\w]+:)?//)?(([\d\w]|%[a-fA-f\d]{2,2})+(:([\d\w]|%[a-fA-f\d]{2,2})+)?@)?([\d\w][-\d\w]{0,253}[\d\w]\.)+[\w]{2,63}(:[\d]+)?(/([-+_~.\d\w]|%[a-fA-f\d]{2,2})*)*(\?(&?([-+_~.\d\w]|%[a-fA-f\d]{2,2})=?)*)?(#([-+_~.\d\w]|%[a-fA-f\d]{2,2})*)?"
        )
        if regex.match(url):
            return True
        else:
            return False

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