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annotate rhodecode/lib/recaptcha.py @ 4116:ffd45b185016 rhodecode-2.2.5-gpl

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Imported some of the GPLv3'd changes from RhodeCode v2.2.5. This imports changes between changesets 21af6c4eab3d and 6177597791c2 in RhodeCode's original repository, including only changes to Python files and HTML. RhodeCode clearly licensed its changes to these files under GPLv3 in their /LICENSE file, which states the following: The Python code and integrated HTML are licensed under the GPLv3 license. (See: https://code.rhodecode.com/rhodecode/files/v2.2.5/LICENSE or http://web.archive.org/web/20140512193334/https://code.rhodecode.com/rhodecode/files/f3b123159901f15426d18e3dc395e8369f70ebe0/LICENSE for an online copy of that LICENSE file) Conservancy reviewed these changes and confirmed that they can be licensed as a whole to the Kallithea project under GPLv3-only. While some of the contents committed herein are clearly licensed GPLv3-or-later, on the whole we must assume the are GPLv3-only, since the statement above from RhodeCode indicates that they intend GPLv3-only as their license, per GPLv3ยง14 and other relevant sections of GPLv3.
author Bradley M. Kuhn <bkuhn@sfconservancy.org>
date Wed, 02 Jul 2014 19:03:13 -0400
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4116
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1 # -*- coding: utf-8 -*-
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2 import urllib
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3 import urllib2
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4
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5 API_SSL_SERVER = "https://www.google.com/recaptcha/api"
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6 API_SERVER = "http://www.google.com/recaptcha/api"
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7 VERIFY_SERVER = "www.google.com"
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8
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9
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10 class RecaptchaResponse(object):
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11 def __init__(self, is_valid, error_code=None):
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12 self.is_valid = is_valid
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13 self.error_code = error_code
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14
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15 def __repr__(self):
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16 return '<RecaptchaResponse:%s>' % (self.is_valid)
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17
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18
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19 def displayhtml(public_key, use_ssl=False, error=None):
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20 """Gets the HTML to display for reCAPTCHA
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21
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22 public_key -- The public api key
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23 use_ssl -- Should the request be sent over ssl?
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24 error -- An error message to display (from RecaptchaResponse.error_code)"""
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25
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26 error_param = ''
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27 if error:
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28 error_param = '&error=%s' % error
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29
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30 if use_ssl:
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31 server = API_SSL_SERVER
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32 else:
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33 server = API_SERVER
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34
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35 return """<script type="text/javascript" src="%(ApiServer)s/challenge?k=%(PublicKey)s%(ErrorParam)s"></script>
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36
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37 <noscript>
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38 <iframe src="%(ApiServer)s/noscript?k=%(PublicKey)s%(ErrorParam)s" height="300" width="500" frameborder="0"></iframe><br />
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39 <textarea name="recaptcha_challenge_field" rows="3" cols="40"></textarea>
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40 <input type='hidden' name='recaptcha_response_field' value='manual_challenge' />
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41 </noscript>
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42 """ % {
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43 'ApiServer': server,
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44 'PublicKey': public_key,
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45 'ErrorParam': error_param,
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46 }
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47
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48
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49 def submit(recaptcha_challenge_field, recaptcha_response_field, private_key,
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50 remoteip):
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51 """
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52 Submits a reCAPTCHA request for verification. Returns RecaptchaResponse
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53 for the request
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54
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55 recaptcha_challenge_field -- The value of recaptcha_challenge_field from the form
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56 recaptcha_response_field -- The value of recaptcha_response_field from the form
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57 private_key -- your reCAPTCHA private key
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58 remoteip -- the user's ip address
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59 """
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60
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61 if not (recaptcha_response_field and recaptcha_challenge_field and
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62 len(recaptcha_response_field) and len(
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63 recaptcha_challenge_field)):
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64 return RecaptchaResponse(is_valid=False,
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65 error_code='incorrect-captcha-sol')
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66
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67 def encode_if_necessary(s):
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68 if isinstance(s, unicode):
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69 return s.encode('utf-8')
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70 return s
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71
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72 params = urllib.urlencode({
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73 'privatekey': encode_if_necessary(private_key),
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74 'remoteip': encode_if_necessary(remoteip),
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75 'challenge': encode_if_necessary(recaptcha_challenge_field),
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76 'response': encode_if_necessary(recaptcha_response_field),
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77 })
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78
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79 request = urllib2.Request(
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80 url="http://%s/recaptcha/api/verify" % VERIFY_SERVER,
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81 data=params,
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82 headers={
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83 "Content-type": "application/x-www-form-urlencoded",
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84 "User-agent": "reCAPTCHA Python"
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85 }
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86 )
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87
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88 httpresp = urllib2.urlopen(request)
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89
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90 return_values = httpresp.read().splitlines()
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91 httpresp.close()
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92
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93 return_code = return_values[0]
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94
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95 if return_code == "true":
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96 return RecaptchaResponse(is_valid=True)
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97 else:
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98 return RecaptchaResponse(is_valid=False, error_code=return_values[1])