add urlinfo plugin

bot/urlinfo.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+import re
+import irc3
+import requests
+import io
+from lxml import etree
+
+from . import Plugin
+
+class URLInfo(Plugin):
+    BLACKLIST = [
+        "^https?:\/\/www\.youtube\.com",
+        "^https?:\/\/youtu\.be",
+        "^https?:\/\/w0bm\.com",
+        "^https?:\/\/f0ck\.me"
+    ]
+
+    @irc3.event(r'(?i)^:\S+ PRIVMSG (?P<target>\S+) :.*(?P<url>https?:\/\/\S+\.\S+).*')
+    def url_parser(self, target: str, url: str):
+        for regex in self.BLACKLIST:
+            if re.match(regex, url):
+                return
+        try:
+            response = requests.get(url, timeout=10)
+        except requests.exceptions.ConnectionError:
+            return
+        tree = etree.parse(io.StringIO(response.text), etree.HTMLParser()).getroot()
+        title = tree.xpath("/html/head/title")
+        if len(title) > 0:
+            self.bot.privmsg(target, '\x02[URLInfo]\x02 ' + title[0].text.strip())
+