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# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
# Developed by: Nasel(http://www.nasel.com.ar)
#
# Authors:
# Matías Fontanini
# Santiago Alessandri
# Gastón Traberg
import http.client
import socket
from urllib.parse import urlencode, urlparse
from moleexceptions import ConnectionException
from connection.response import Response
class BaseRequestSender():
def __init__(self):
self.follow_redirects = False
self.max_retries = 3
def __str__(self):
pass
def fetch_data(self, request, connection):
pass
def send(self, request):
try:
if request.proto == 'https':
connection = http.client.HTTPSConnection(request.host)
else:
connection = http.client.HTTPConnection(request.host)
except (http.client.NotConnected,
http.client.InvalidURL,
http.client.UnknownProtocol,
http.client.BadStatusLine) as e:
raise ConnectionException(str(e))
for _ in range(self.max_retries):
try:
data = self.fetch_data(request, connection)
break
except (socket.error,
socket.timeout,
http.client.IncompleteRead,
http.client.CannotSendRequest,
http.client.CannotSendHeader,
http.client.ResponseNotReady,
http.client.BadStatusLine) as ex:
data = None
exception = ex
if data is None:
raise ConnectionException(str(exception))
return Response(data)
class HttpRequestSender(BaseRequestSender):
def fetch_data(self, request, connection):
connection.request(request.method,
request.str_uri(),
urlencode(request.post_parameters),
request.headers)
resp = connection.getresponse()
resp_headers = dict(resp.getheaders())
while self.follow_redirects and resp.getcode() == 302 and 'Location' in resp_headers:
resp.read() # Need to read whole request before sending a new one
parsed = urlparse(resp_headers["Location"])
request.headers["Host"] = parsed.netloc
connection.request('GET', parsed.path, None, request.headers)
resp = connection.getresponse()
resp_headers = dict(resp.getheaders())
return resp.read()
def __str__(self):
return 'httpsender'
class HttpHeadRequestSender(BaseRequestSender):
def fetch_data(self, request, connection):
connection.request('HEAD',
request.str_uri(),
urlencode(request.post_parameters),
request.headers)
resp = connection.getresponse()
headers = dict(resp.getheaders())
output = ''
for header in headers:
output += '<div>{0} {1}</div>\n'.format(header, headers[header])
return '<html><body>{0}</body></html>'.format(output).encode()
def __str__(self):
return 'headsender'
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