kallithea Files · rhodecode/lib/recaptcha.py

Files @ 9dd726706178

Branch filter:

Location: kallithea/rhodecode/lib/recaptcha.py

9dd726706178 3.1 KiB text/x-python Show Annotation Show as Raw Download as Raw

Bradley M. Kuhn

Complete copyright notices for web interface; change footer to link to them.

The original copyright notice found in the footer was not accurate as it
included only one of the many copyright holders in this project. This change
creates an "about" page, which currently contains just the copyright and
license information. It links to repository for additional potential copyright
holders not listed on the about page.

Unlisted contributors are mentioned in template comments.

Html links for Kallithea is fixed and we link to Conservancy.

Display of version information in the footer is improved.

# -*- coding: utf-8 -*-
import urllib
import urllib2

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 __repr__(self):
        return '<RecaptchaResponse:%s>' % (self.is_valid)


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])