Transmission-XBMC/resources/lib/transmissionrpc/httphandler.py

82 lines
3.5 KiB
Python

# -*- coding: utf-8 -*-
# Copyright (c) 2011-2013 Erik Svensson <erik.public@gmail.com>
# Licensed under the MIT license.
import sys
from transmissionrpc.error import HTTPHandlerError
from six import PY3
if PY3:
from urllib.request import Request, build_opener, \
HTTPPasswordMgrWithDefaultRealm, HTTPBasicAuthHandler, HTTPDigestAuthHandler
from urllib.error import HTTPError, URLError
from http.client import BadStatusLine
else:
from urllib2 import Request, build_opener, \
HTTPPasswordMgrWithDefaultRealm, HTTPBasicAuthHandler, HTTPDigestAuthHandler
from urllib2 import HTTPError, URLError
from httplib import BadStatusLine
class HTTPHandler(object):
"""
Prototype for HTTP handling.
"""
def set_authentication(self, uri, login, password):
"""
Transmission use basic authentication in earlier versions and digest
authentication in later versions.
* uri, the authentication realm URI.
* login, the authentication login.
* password, the authentication password.
"""
raise NotImplementedError("Bad HTTPHandler, failed to implement set_authentication.")
def request(self, url, query, headers, timeout):
"""
Implement a HTTP POST request here.
* url, The URL to request.
* query, The query data to send. This is a JSON data string.
* headers, a dictionary of headers to send.
* timeout, requested request timeout in seconds.
"""
raise NotImplementedError("Bad HTTPHandler, failed to implement request.")
class DefaultHTTPHandler(HTTPHandler):
"""
The default HTTP handler provided with transmissionrpc.
"""
def __init__(self):
HTTPHandler.__init__(self)
self.http_opener = build_opener()
def set_authentication(self, uri, login, password):
password_manager = HTTPPasswordMgrWithDefaultRealm()
password_manager.add_password(realm=None, uri=uri, user=login, passwd=password)
self.http_opener = build_opener(HTTPBasicAuthHandler(password_manager), HTTPDigestAuthHandler(password_manager))
def request(self, url, query, headers, timeout):
request = Request(url, query.encode('utf-8'), headers)
try:
if (sys.version_info[0] == 2 and sys.version_info[1] > 5) or sys.version_info[0] > 2:
response = self.http_opener.open(request, timeout=timeout)
else:
response = self.http_opener.open(request)
except HTTPError as error:
if error.fp is None:
raise HTTPHandlerError(error.filename, error.code, error.msg, dict(error.hdrs))
else:
raise HTTPHandlerError(error.filename, error.code, error.msg, dict(error.hdrs), error.read())
except URLError as error:
# urllib2.URLError documentation is horrendous!
# Try to get the tuple arguments of URLError
if hasattr(error.reason, 'args') and isinstance(error.reason.args, tuple) and len(error.reason.args) == 2:
raise HTTPHandlerError(httpcode=error.reason.args[0], httpmsg=error.reason.args[1])
else:
raise HTTPHandlerError(httpmsg='urllib2.URLError: %s' % (error.reason))
except BadStatusLine as error:
raise HTTPHandlerError(httpmsg='httplib.BadStatusLine: %s' % (error.line))
return response.read().decode('utf-8')