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annotate rhodecode/lib/recaptcha.py @ 4147:1c8f818787b3 rhodecode-2.2.5-gpl

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author Mads Kiilerich <madski@unity3d.com>
date Wed, 02 Jul 2014 19:03:23 -0400
parents ffd45b185016
children
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rev   line source
4116
ffd45b185016 Imported some of the GPLv3'd changes from RhodeCode v2.2.5.
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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])