120 lines
3.6 KiB
Python
120 lines
3.6 KiB
Python
# coding=utf-8
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# Nemubot is a modulable IRC bot, built around XML configuration files.
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# Copyright (C) 2012 Mercier Pierre-Olivier
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import http.client
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import json
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import re
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import socket
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from urllib.parse import quote
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from urllib.parse import urlparse
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from urllib.request import urlopen
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import xmlparser
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def isURL(url):
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"""Return True if the URL can be parsed"""
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o = urlparse(url)
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return o.scheme == "" and o.netloc == "" and o.path == ""
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def getScheme(url):
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"""Return the protocol of a given URL"""
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o = urlparse(url)
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return o.scheme
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def getHost(url):
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"""Return the domain of a given URL"""
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return urlparse(url).netloc
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def getPort(url):
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"""Return the port of a given URL"""
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return urlparse(url).port
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def getPath(url):
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"""Return the page request of a given URL"""
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return urlparse(url).path
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def getUser(url):
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"""Return the page request of a given URL"""
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return urlparse(url).username
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def getPassword(url):
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"""Return the page request of a given URL"""
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return urlparse(url).password
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# Get real pages
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def getURLContent(url, timeout=15):
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"""Return page content corresponding to URL or None if any error occurs"""
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o = urlparse(url)
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conn = http.client.HTTPConnection(o.netloc, port=o.port, timeout=timeout)
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try:
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if o.query != '':
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conn.request("GET", o.path + "?" + o.query, None, {"User-agent": "Nemubot v3"})
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else:
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conn.request("GET", o.path, None, {"User-agent": "Nemubot v3"})
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except socket.timeout:
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return None
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except socket.gaierror:
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print ("<tools.web> Unable to receive page %s from %s on %d."
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% (o.path, o.netloc, o.port))
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return None
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try:
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res = conn.getresponse()
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size = int(res.getheader("Content-Length", 200000))
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cntype = res.getheader("Content-Type")
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if size > 200000 or (cntype[:4] != "text" and cntype[:4] != "appl"):
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return None
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data = res.read(size)
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except http.client.BadStatusLine:
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return None
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finally:
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conn.close()
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if res.status == http.client.OK or res.status == http.client.SEE_OTHER:
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return data
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elif res.status == http.client.FOUND or res.status == http.client.MOVED_PERMANENTLY:
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return getURLContent(res.getheader("Location"), timeout)
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else:
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return None
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def getXML(url, timeout=15):
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"""Get content page and return XML parsed content"""
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cnt = getURLContent(url, timeout)
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if cnt is None:
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return None
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else:
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return xmlparser.parse_string(cnt)
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def getJSON(url, timeout=15):
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"""Get content page and return JSON content"""
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cnt = getURLContent(url, timeout)
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if cnt is None:
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return None
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else:
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return json.loads(cnt.decode())
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# Other utils
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def striphtml(data):
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"""Remove HTML tags from text"""
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p = re.compile(r'<.*?>')
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return p.sub('', data).replace("(", "/(").replace(")", ")/").replace(""", "\"")
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