CODEWITHSUNDEEP
pythonhttpproxy
Rehan
Rehan

Reputation: 1339

How to specify an authenticated proxy for a python http connection?

What's the best way to specify a proxy with username and password for an http connection in python?

Upvotes: 62

Views: 123507

Answers (6)

Aminah Nuraini
Aminah Nuraini

Reputation: 19206

Use this:

import requests

proxies = {"http":"http://username:password@proxy_ip:proxy_port"}

r = requests.get("http://www.example.com/", proxies=proxies)

print(r.content)

I think it's much simpler than using urllib. I don't understand why people love using urllib so much.

Upvotes: 29

Le Hai Chau
Le Hai Chau

Reputation: 771

Here is the method use urllib 

import urllib.request

# set up authentication info
authinfo = urllib.request.HTTPBasicAuthHandler()
proxy_support = urllib.request.ProxyHandler({"http" : "http://ahad-haam:3128"})

# build a new opener that adds authentication and caching FTP handlers
opener = urllib.request.build_opener(proxy_support, authinfo,
                                     urllib.request.CacheFTPHandler)

# install it
urllib.request.install_opener(opener)

f = urllib.request.urlopen('http://www.python.org/')
"""

Upvotes: 2

Tony Meyer
Tony Meyer

Reputation: 10157

Or if you want to install it, so that it is always used with urllib2.urlopen (so you don't need to keep a reference to the opener around):

import urllib2
url = 'www.proxyurl.com'
username = 'user'
password = 'pass'
password_mgr = urllib2.HTTPPasswordMgrWithDefaultRealm()
# None, with the "WithDefaultRealm" password manager means
# that the user/pass will be used for any realm (where
# there isn't a more specific match).
password_mgr.add_password(None, url, username, password)
auth_handler = urllib2.HTTPBasicAuthHandler(password_mgr)
opener = urllib2.build_opener(auth_handler)
urllib2.install_opener(opener)
print urllib2.urlopen("http://www.example.com/folder/page.html").read()

Upvotes: 3

bernhardrusch
bernhardrusch

Reputation: 11910

This works for me: 

import urllib2

proxy = urllib2.ProxyHandler({'http': 'http://
username:password@proxyurl:proxyport'})
auth = urllib2.HTTPBasicAuthHandler()
opener = urllib2.build_opener(proxy, auth, urllib2.HTTPHandler)
urllib2.install_opener(opener)

conn = urllib2.urlopen('http://python.org')
return_str = conn.read()

Upvotes: 58

ducu
ducu

Reputation: 1219

Setting an environment var named http_proxy like this: http://username:password@proxy_url:port

Upvotes: 18

gz.
gz.

Reputation: 6701

The best way of going through a proxy that requires authentication is using urllib2 to build a custom url opener, then using that to make all the requests you want to go through the proxy. Note in particular, you probably don't want to embed the proxy password in the url or the python source code (unless it's just a quick hack).

import urllib2

def get_proxy_opener(proxyurl, proxyuser, proxypass, proxyscheme="http"):
    password_mgr = urllib2.HTTPPasswordMgrWithDefaultRealm()
    password_mgr.add_password(None, proxyurl, proxyuser, proxypass)

    proxy_handler = urllib2.ProxyHandler({proxyscheme: proxyurl})
    proxy_auth_handler = urllib2.ProxyBasicAuthHandler(password_mgr)

    return urllib2.build_opener(proxy_handler, proxy_auth_handler)

if __name__ == "__main__":
    import sys
    if len(sys.argv) > 4:
        url_opener = get_proxy_opener(*sys.argv[1:4])
        for url in sys.argv[4:]:
            print url_opener.open(url).headers
    else:
        print "Usage:", sys.argv[0], "proxy user pass fetchurls..."

In a more complex program, you can seperate these components out as appropriate (for instance, only using one password manager for the lifetime of the application). The python documentation has more examples on how to do complex things with urllib2 that you might also find useful.

Upvotes: 10

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