/usr/lib/python2.7/dist-packages/recaptcha/client/captcha.py is in python-recaptcha 1.0.6-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | import urllib2, urllib
API_SSL_SERVER="https://www.google.com/recaptcha/api"
API_SERVER="http://www.google.com/recaptcha/api"
VERIFY_SERVER="www.google.com"
class RecaptchaResponse(object):
def __init__(self, is_valid, error_code=None):
self.is_valid = is_valid
self.error_code = error_code
def displayhtml (public_key,
use_ssl = False,
error = None):
"""Gets the HTML to display for reCAPTCHA
public_key -- The public api key
use_ssl -- Should the request be sent over ssl?
error -- An error message to display (from RecaptchaResponse.error_code)"""
error_param = ''
if error:
error_param = '&error=%s' % error
if use_ssl:
server = API_SSL_SERVER
else:
server = API_SERVER
return """<script type="text/javascript" src="%(ApiServer)s/challenge?k=%(PublicKey)s%(ErrorParam)s"></script>
<noscript>
<iframe src="%(ApiServer)s/noscript?k=%(PublicKey)s%(ErrorParam)s" height="300" width="500" frameborder="0"></iframe><br />
<textarea name="recaptcha_challenge_field" rows="3" cols="40"></textarea>
<input type='hidden' name='recaptcha_response_field' value='manual_challenge' />
</noscript>
""" % {
'ApiServer' : server,
'PublicKey' : public_key,
'ErrorParam' : error_param,
}
def submit (recaptcha_challenge_field,
recaptcha_response_field,
private_key,
remoteip):
"""
Submits a reCAPTCHA request for verification. Returns RecaptchaResponse
for the request
recaptcha_challenge_field -- The value of recaptcha_challenge_field from the form
recaptcha_response_field -- The value of recaptcha_response_field from the form
private_key -- your reCAPTCHA private key
remoteip -- the user's ip address
"""
if not (recaptcha_response_field and recaptcha_challenge_field and
len (recaptcha_response_field) and len (recaptcha_challenge_field)):
return RecaptchaResponse (is_valid = False, error_code = 'incorrect-captcha-sol')
def encode_if_necessary(s):
if isinstance(s, unicode):
return s.encode('utf-8')
return s
params = urllib.urlencode ({
'privatekey': encode_if_necessary(private_key),
'remoteip' : encode_if_necessary(remoteip),
'challenge': encode_if_necessary(recaptcha_challenge_field),
'response' : encode_if_necessary(recaptcha_response_field),
})
request = urllib2.Request (
url = "http://%s/recaptcha/api/verify" % VERIFY_SERVER,
data = params,
headers = {
"Content-type": "application/x-www-form-urlencoded",
"User-agent": "reCAPTCHA Python"
}
)
httpresp = urllib2.urlopen (request)
return_values = httpresp.read ().splitlines ();
httpresp.close();
return_code = return_values [0]
if (return_code == "true"):
return RecaptchaResponse (is_valid=True)
else:
return RecaptchaResponse (is_valid=False, error_code = return_values [1])
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