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# Written by John Hoffman
# see LICENSE.txt for license information
from httplib import HTTPConnection
from urlparse import urlparse
import socket
from gzip import GzipFile
from StringIO import StringIO
from urllib import quote, unquote
from __init__ import version
MAX_REDIRECTS = 10
class urlopen:
def __init__(self, url):
self.tries = 0
self._open(url)
def _open(self, url):
self.tries += 1
if self.tries > MAX_REDIRECTS:
raise IOError, ('http error', 500,
"Internal Server Error: Redirect Recursion")
(scheme, netloc, path, pars, query, fragment) = urlparse(url)
if scheme != 'http':
raise IOError, ('url error', 'unknown url type', scheme, url)
url = path
if pars:
url += ';'+pars
if query:
url += '?'+query
# if fragment:
self.connection = HTTPConnection(netloc)
self.connection.request('GET', url, None,
{ 'User-Agent': 'BitTorrent/' + version,
'Accept-Encoding': 'gzip' } )
self.response = self.connection.getresponse()
status = self.response.status
if status in (301,302):
try:
self.connection.close()
except:
pass
self._open(self.response.getheader('Location'))
return
if status != 200:
raise IOError, ('http error', status, self.response.reason)
def read(self):
data = self.response.read()
if self.response.getheader('Content-Encoding','').find('gzip') >= 0:
try:
compressed = StringIO(data)
f = GzipFile(fileobj = compressed)
data = f.read()
except:
raise IOError, ('http error', 'got corrupt response')
return data
def close(self):
self.connection.close()
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