92 lines
2.6 KiB
Python
92 lines
2.6 KiB
Python
# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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# GPL 2008
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import os
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import gzip
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import StringIO
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import urllib
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import urllib2
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from chardet.universaldetector import UniversalDetector
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# Default headers for HTTP requests.
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DEFAULT_HEADERS = {
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'User-Agent': 'Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.8) Gecko/20100723 Firefox/3.6.8',
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'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
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'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
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'Accept-Language': 'en-us,en;q=0.5',
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'Accept-Encoding': 'gzip'
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}
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def status(url, data=None, headers=DEFAULT_HEADERS):
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try:
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f = openUrl(url, data, headers)
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s = f.code
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except urllib2.HTTPError, e:
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s = e.code
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return s
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def exists(url, data=None, headers=DEFAULT_HEADERS):
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s = status(url, data, headers)
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if s >= 200 and s < 400:
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return True
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return False
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def getHeaders(url, data=None, headers=DEFAULT_HEADERS):
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try:
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f = openUrl(url, data, headers)
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f.headers['Status'] = "%s" % f.code
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headers = f.headers
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f.close()
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except urllib2.HTTPError, e:
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e.headers['Status'] = "%s" % e.code
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headers = e.headers
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return dict(headers)
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def openUrl(url, data=None, headers=DEFAULT_HEADERS):
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url = url.replace(' ', '%20')
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req = urllib2.Request(url, data, headers)
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return urllib2.urlopen(req)
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def readUrl(url, data=None, headers=DEFAULT_HEADERS, returnHeaders=False):
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f = openUrl(url, data, headers)
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data = f.read()
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f.close()
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if f.headers.get('content-encoding', None) == 'gzip':
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data = gzip.GzipFile(fileobj=StringIO.StringIO(data)).read()
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if returnHeaders:
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f.headers['Status'] = "%s" % f.code
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return dict(f.headers), data
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return data
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def readUrlUnicode(url):
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data = readUrl(url)
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encoding = getEncoding(data)
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if not encoding:
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encoding = 'latin-1'
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return unicode(data, encoding)
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def getEncoding(data):
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if 'content="text/html; charset=utf-8"' in data:
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return 'utf-8'
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elif 'content="text/html; charset=iso-8859-1"' in data:
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return 'iso-8859-1'
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detector = UniversalDetector()
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for line in data.split('\n'):
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detector.feed(line)
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if detector.done:
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break
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detector.close()
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return detector.result['encoding']
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def saveUrl(url, filename, overwrite=False):
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if not os.path.exists(filename) or overwrite:
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dirname = os.path.dirname(filename)
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if not os.path.exists(dirname):
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os.makedirs(dirname)
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data = readUrl(url)
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f = open(filename, 'w')
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f.write(data)
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f.close()
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