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How to see if user is connected to internet or NOT?

I am building a BlogApp and I am stuck on a Problem.
What i am trying to do
I am trying to implement a feature that ,`If user is connected to internet then everything works fine BUT if user is not connected to internet then show a message like "You're not Connected to Internet".
What have i tried
I also tried channels but then i think internet connection are far away from Django-channels.
I also tried this :
url = "http://127.0.0.1:8000/"
timeout = 5
try:
request = requests.get(url, timeout=timeout)
print("Connected to the Internet")
except (requests.ConnectionError, requests.Timeout) as exception:
print("No INTERNET")
But it is keep showing me :
'Response' object has no attribute 'META'
I don't know what to do.
Any help would be Appreciated.
Thank You in Advance

It is not easy to know whether you're connected to the internet. In fact it is not even clear what this means. It depends a lot on the context.
In many practical cases it means, that your network setup is setup such, that you can access a DNS server and that you can access at least one machine on the internet.
You could just use one known url like for example "https://google.com" or "https://stackoverflow.com".
However this means that:
your test will fail if given service is for any reason down
you create requests to a server that isn't yours.
If you know, that the application should access your special web service, then you could use the url of your special web service:
url = "https://your_special_webservice.yourdomain"
Side information:
If you put the code in your question into a django view, that handles http requests, then you should probably write something like:
request = requests.get(url, timeout=timeout)
instead of
response = requests.get(url, timeout=timeout)
Otherwise you will overwrite the request object, of your django view
and this is probably what provoked your error message:
'Response' object has no attribute 'META'

How to create a simple and secure Socks5 proxy in python?

Few days back I was wanting to build a proxy that could allow me to securely and anonymously connect to websites and servers. At first it seemed like a pretty easy idea, I would create an HTTP proxy that uses SSL between the client and the proxy, It would then create a SSL connection with what ever website/server the client requested and then forward that information to and from the client and server. I spent about a day researching and writing code that would do just that. But I then realized that someone could compromise the proxy and use the session key that the proxy had to decrypt and read the data being sent to and from the server.
After a little more research it seem that a socks proxy is what I needed. However there is not much documentation on a python version of a socks proxy(Mostly just how to connect to one). I was able to find The PySocks Module and read the Socks.py file. It looks great for creating a client but I don't see how I could use it to make a proxy.
I was wondering if anyone had a simple example of a socks5 proxy or if someone could point me to some material that could help me begin learning and building one?

You create a python server to listen on a port and listen on IP 127.0.0.1. When you connect to your server you send: "www.facebook.com:80". No URL path nor http scheme. If the connect fails you send a failure message which may look something like "number Unable to connect to host." where number is an specific code that signifies a failed connection attempt. Upon success of a connection you send "200 Connection established". Then data is sent and received as normal. You do not want to use an http proxy because it accepts only website traffic.
You may want to use a framework for the proxy server because it should handle multiple connections.
I've read an ebook on asyncio named O'Reilly "Using Asyncio In Python 2020" multiple times and re-read it every now and again to try to grasp multiple connections. I have also just started to search for solutions using Flask because I want my proxy server to run along side a webserver.

I recommend using requesocks along with stem (assumes Tor). The official stem library is provided by Tor. Here's a simplified example based on a scraper that I wrote which also uses fake_useragent so you look like a browser:
import requesocks
from fake_useragent import UserAgent
from stem import Signal
from stem.control import Controller
class Proxy(object):
def __init__(self,
socks_port=9050,
tor_control_port=9051,
tor_connection_password='password')
self._socks_port = int(socks_port)
self._tor_control_port = int(tor_control_port)
self._tor_connection_password = tor_connection_password
self._user_agent = UserAgent()
self._session = None
self._update_session()
def _update_session(self):
self._session = requesocks.session()
# port 9050 is the default SOCKS port
self._session.proxies = {
'http': 'socks5://127.0.0.1:{}'.format(self._socks_port),
'https': 'socks5://127.0.0.1:{}'.format(self._socks_port),
}
def _renew_tor_connection(self):
with Controller.from_port(port=self._tor_control_port) as controller:
controller.authenticate(password=self._tor_connection_password)
controller.signal(Signal.NEWNYM)
def _sample_get_response(self, url):
if not self._session:
self._update_session()
# generate random user agent string for every request
headers = {
'User-Agent': self._user_agent.random,
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
'Accept-Language': 'en-us,en;q=0.5',
} # adjust as desired
response = self._session.get(url, verify=False, headers=headers)
return response
You must have the Tor service running before executing this script and you must also modify your torrc file to enable the control port (9051).
Tor puts the torrc file in /usr/local/etc/tor/torrc if you compiled Tor from source, and /etc/tor/torrc or /etc/torrc if you installed a pre-built package. If you installed Tor Browser, look for
Browser/TorBrowser/Data/Tor/torrc inside your Tor Browser directory (On Mac OS X, you must right-click or command-click on the Tor Browser icon and select "Show Package Contents" before the Tor Browser directories become
visible).
Once you've found your torrc file, you need to uncomment the corresponding lines:
ControlPort 9051
## If you enable the controlport, be sure to enable one of these
## authentication methods, to prevent attackers from accessing it.
HashedControlPassword 16:05834BCEDD478D1060F1D7E2CE98E9C13075E8D3061D702F63BCD674DE
Please note that the HashedControlPassword above is for the password "password". If you want to set a different password (recommended), replace the HashedControlPassword in the torrc file by noting the output from tor --hash-password "<new_password>" where <new_password> is the password that you want to set.
Once you've changed your torrc file, you will need to restart tor for the changes to take effect (note that you actually only need to send Tor a HUP signal, not actually restart it). To restart it:
sudo service tor restart
I hope this helps and at least gets you started for what you were looking for.

Using Python requests to GET not working - web client and browser works

I have my web app API running.
If I go to http://127.0.0.1:5000/ via any browser I get the right response.
If I use the Advanced REST Client Chrome app and send a GET request to my app at that address I get the right response.
However this gives me a 503:
import requests
response = requests.get('http://127.0.0.1:5000/')
I read to try this for some reason:
s = requests.Session()
response = s.get('http://127.0.0.1:5000/')
But I still get a 503 response.
Other things I've tried: Not prefixing with http://, not using a port in the URL, running on a different port, trying a different API call like Post, etc.
Thanks.

Is http://127.0.0.1:5000/ your localhost? If so, try 'http://localhost:5000' instead

Just in case someone is struggling with this as well, what finally worked was running the application on my local network ip.
I.e., I just opened up the web app and changed the app.run(debug=True) line to app.run(host="my.ip.address", debug = True).
I'm guessing the requests library perhaps was trying to protect me from a localhost attack? Or our corporate proxy or firewall was preventing communication from unknown apps to the 127 address. I had set NO_PROXY to include the 127.0.0.1 address, so I don't think that was the problem. In the end I'm not really sure why it is working now, but I'm glad that it is.

Is it possible to connect to eDirectory with python ldap3?

I am trying to connect to eDirectory using python. It is not as easy as connecting to active directory using python so I am wondering if this is even possible. I am currently running python3.4

I'm the author of ldap3, I use eDirectory for testing the library.
just try the following code:
from ldap3 import Server, Connection, ALL, SUBTREE
server = Server('your_server_name', get_info=ALL) # don't user get_info if you don't need info on the server and the schema
connection = Connection(server, 'your_user_name_dn', 'your_password')
connection.bind()
if connection.search('your_search_base','(objectClass=*)', SUBTREE, attributes = ['cn', 'objectClass', 'your_attribute'])
for entry in connection.entries:
print(entry.entry_get_dn())
print(entry.cn, entry.objectClass, entry.your_attribute)
connection.unbind()
If you need a secure connection just change the server definition to:
server = Server('your_server_name', get_info=ALL, use_tls=True) # default tls configuration on port 636
Also, any example in the docs at https://ldap3.readthedocs.org/en/latest/quicktour.html should work with eDirectory.
Bye,
Giovanni

pysimplesoap web service return connection refused

I've created some web services using pysimplesoap like on this documentation:
https://code.google.com/p/pysimplesoap/wiki/SoapServer
When I tested it, I called it like this:
from SOAPpy import SOAPProxy
from SOAPpy import Types
namespace = "http://localhost:8008"
url = "http://localhost:8008"
proxy = SOAPProxy(url, namespace)
response = proxy.dummy(times=5, name="test")
print response
And it worked for all of my web services, but when I try to call it by using an library which is needed to specify the WSDL, it returns "Could not connect to host".

To solve my problem, I used the object ".wsdl()" to generate the correct WSDL and saved it into a file, the WSDL generated by default wasn't correct, was missing variable types and the correct server address...

The server name localhost is only meaningful on your computer. Once outside, other computers won't be able to see it.
1) find out your external IP, with http://www.whatismyip.com/ or another service. Note that IPs change over time.
2) plug the IP in to http://www.soapclient.com/soaptest.html
If your local service is answering IP requests as well as from localhost, you're done!