IP fetching failure causes failure in web_reader_read tool

[n0ech]

In modules\http.py:

lines 803-808:

        try:
            self.server_ipv4 = urllib.request.urlopen("https://api.ipify.org").read().decode()
            self.server_ipv6 = urllib.request.urlopen("https://api64.ipify.org").read().decode()
        except:
            self.server_ipv4 = None
            self.server_ipv6 = None

And then lines 946-952:

def _censor_ip(self, text: str) -> str:
        """Replaces IPv4 and IPv6 addresses with [CENSORED_IP]."""
        if not isinstance(text, str):
            return text
        text = text.replace(self.server_ipv4, "[CENSORED_IP]")
        text = text.replace(self.server_ipv6, "[CENSORED_IP]")
        return text

If there's an exception getting the IPv4/IPv6 addresses, they get set to None, which causes the text.replace() to fail when invoking _censor_ip.
Updating the second block by wrapping the text replacements in if statements like this fixes the issue:

    def _censor_ip(self, text: str) -> str:
        """Replaces IPv4 and IPv6 addresses with [CENSORED_IP]."""
        if not isinstance(text, str):
            return text
        if self.server_ipv4 is not None:
            text = text.replace(self.server_ipv4, "[CENSORED_IP]")
        if self.server_ipv6 is not None:
            text = text.replace(self.server_ipv6, "[CENSORED_IP]")
        return text

[Rose22]

thanks for reporting it and the PR! merged