I am getting the following error:
Exception in thread Thread-3:
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File "/Users/Matthew/Desktop/Skypebot 2.0/bot.py", line 271, in process
info = urllib2.urlopen(req).read()
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 154, in urlopen
return opener.open(url, data, timeout)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 431, in open
response = self._open(req, data)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 449, in _open
'_open', req)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 409, in _call_chain
result = func(*args)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 1240, in https_open
context=self._context)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 1197, in do_open
raise URLError(err)
URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:581)>
This is the code that is causing this error:
if input.startswith("!web"):
input = input.replace("!web ", "")
url = "https://domainsearch.p.mashape.com/index.php?name=" + input
req = urllib2.Request(url, headers={ 'X-Mashape-Key': 'XXXXXXXXXXXXXXXXXXXX' })
info = urllib2.urlopen(req).read()
Message.Chat.SendMessage ("" + info)
The API I'm using requires me to use HTTPS. How can I make it bypass the verification?
If you just want to bypass verification, you can create a new SSLContext. By default newly created contexts use CERT_NONE.
Be careful with this as stated in section 17.3.7.2.1
When calling the SSLContext constructor directly, CERT_NONE is the default. Since it does not authenticate the other peer, it can be insecure, especially in client mode where most of time you would like to ensure the authenticity of the server you’re talking to. Therefore, when in client mode, it is highly recommended to use CERT_REQUIRED.
But if you just want it to work now for some other reason you can do the following, you'll have to import ssl as well:
input = input.replace("!web ", "")
url = "https://domainsearch.p.mashape.com/index.php?name=" + input
req = urllib2.Request(url, headers={ 'X-Mashape-Key': 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX' })
gcontext = ssl.SSLContext() # Only for gangstars
info = urllib2.urlopen(req, context=gcontext).read()
Message.Chat.SendMessage ("" + info)
This should get round your problem but you're not really solving any of the issues, but you won't see the [SSL: CERTIFICATE_VERIFY_FAILED] because you now aren't verifying the cert!
To add to the above, if you want to know more about why you are seeing these issues you will want to have a look at PEP 476.
This PEP proposes to enable verification of X509 certificate signatures, as well as hostname verification for Python's HTTP clients by default, subject to opt-out on a per-call basis. This change would be applied to Python 2.7, Python 3.4, and Python 3.5.
There is an advised opt out which isn't dissimilar to my advice above:
import ssl
# This restores the same behavior as before.
context = ssl._create_unverified_context()
urllib.urlopen("https://no-valid-cert", context=context)
It also features a highly discouraged option via monkeypatching which you don't often see in python:
import ssl
ssl._create_default_https_context = ssl._create_unverified_context
Which overrides the default function for context creation with the function to create an unverified context.
Please note with this as stated in the PEP:
This guidance is aimed primarily at system administrators that wish to adopt newer versions of Python that implement this PEP in legacy environments that do not yet support certificate verification on HTTPS connections. For example, an administrator may opt out by adding the monkeypatch above to sitecustomize.py in their Standard Operating Environment for Python. Applications and libraries SHOULD NOT be making this change process wide (except perhaps in response to a system administrator controlled configuration setting).
If you want to read a paper on why not validating certs is bad in software you can find it here!
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