| 1 | import urllib2, urllib |
|---|
| 2 | |
|---|
| 3 | API_SSL_SERVER="https://api-secure.recaptcha.net" |
|---|
| 4 | API_SERVER="http://api.recaptcha.net" |
|---|
| 5 | VERIFY_SERVER="api-verify.recaptcha.net" |
|---|
| 6 | |
|---|
| 7 | class RecaptchaResponse(object): |
|---|
| 8 | def __init__(self, is_valid, error_code=None): |
|---|
| 9 | self.is_valid = is_valid |
|---|
| 10 | self.error_code = error_code |
|---|
| 11 | |
|---|
| 12 | def displayhtml (public_key, |
|---|
| 13 | use_ssl = False, |
|---|
| 14 | error = None): |
|---|
| 15 | """Gets the HTML to display for reCAPTCHA |
|---|
| 16 | |
|---|
| 17 | public_key -- The public api key |
|---|
| 18 | use_ssl -- Should the request be sent over ssl? |
|---|
| 19 | error -- An error message to display (from RecaptchaResponse.error_code)""" |
|---|
| 20 | |
|---|
| 21 | error_param = '' |
|---|
| 22 | if error: |
|---|
| 23 | error_param = '&error=%s' % error |
|---|
| 24 | |
|---|
| 25 | if use_ssl: |
|---|
| 26 | server = API_SSL_SERVER |
|---|
| 27 | else: |
|---|
| 28 | server = API_SERVER |
|---|
| 29 | |
|---|
| 30 | return """<script type="text/javascript" src="%(ApiServer)s/challenge?k=%(PublicKey)s%(ErrorParam)s"></script> |
|---|
| 31 | |
|---|
| 32 | <noscript> |
|---|
| 33 | <iframe src="%(ApiServer)s/noscript?k=%(PublicKey)s%(ErrorParam)s" height="300" width="500" frameborder="0"></iframe><br /> |
|---|
| 34 | <textarea name="recaptcha_challenge_field" rows="3" cols="40"></textarea> |
|---|
| 35 | <input type='hidden' name='recaptcha_response_field' value='manual_challenge' /> |
|---|
| 36 | </noscript> |
|---|
| 37 | """ % { |
|---|
| 38 | 'ApiServer' : server, |
|---|
| 39 | 'PublicKey' : public_key, |
|---|
| 40 | 'ErrorParam' : error_param, |
|---|
| 41 | } |
|---|
| 42 | |
|---|
| 43 | |
|---|
| 44 | def submit (recaptcha_challenge_field, |
|---|
| 45 | recaptcha_response_field, |
|---|
| 46 | private_key, |
|---|
| 47 | remoteip): |
|---|
| 48 | """ |
|---|
| 49 | Submits a reCAPTCHA request for verification. Returns RecaptchaResponse |
|---|
| 50 | for the request |
|---|
| 51 | |
|---|
| 52 | recaptcha_challenge_field -- The value of recaptcha_challenge_field from the form |
|---|
| 53 | recaptcha_response_field -- The value of recaptcha_response_field from the form |
|---|
| 54 | private_key -- your reCAPTCHA private key |
|---|
| 55 | remoteip -- the user's ip address |
|---|
| 56 | """ |
|---|
| 57 | |
|---|
| 58 | if not (recaptcha_response_field and recaptcha_challenge_field and |
|---|
| 59 | len (recaptcha_response_field) and len (recaptcha_challenge_field)): |
|---|
| 60 | return RecaptchaResponse (is_valid = False, error_code = 'incorrect-captcha-sol') |
|---|
| 61 | |
|---|
| 62 | |
|---|
| 63 | def encode_if_necessary(s): |
|---|
| 64 | if isinstance(s, unicode): |
|---|
| 65 | return s.encode('utf-8') |
|---|
| 66 | return s |
|---|
| 67 | |
|---|
| 68 | params = urllib.urlencode ({ |
|---|
| 69 | 'privatekey': encode_if_necessary(private_key), |
|---|
| 70 | 'remoteip' : encode_if_necessary(remoteip), |
|---|
| 71 | 'challenge': encode_if_necessary(recaptcha_challenge_field), |
|---|
| 72 | 'response' : encode_if_necessary(recaptcha_response_field), |
|---|
| 73 | }) |
|---|
| 74 | |
|---|
| 75 | request = urllib2.Request ( |
|---|
| 76 | url = "http://%s/verify" % VERIFY_SERVER, |
|---|
| 77 | data = params, |
|---|
| 78 | headers = { |
|---|
| 79 | "Content-type": "application/x-www-form-urlencoded", |
|---|
| 80 | "User-agent": "reCAPTCHA Python" |
|---|
| 81 | } |
|---|
| 82 | ) |
|---|
| 83 | |
|---|
| 84 | httpresp = urllib2.urlopen (request) |
|---|
| 85 | |
|---|
| 86 | return_values = httpresp.read ().splitlines (); |
|---|
| 87 | httpresp.close(); |
|---|
| 88 | |
|---|
| 89 | return_code = return_values [0] |
|---|
| 90 | |
|---|
| 91 | if (return_code == "true"): |
|---|
| 92 | return RecaptchaResponse (is_valid=True) |
|---|
| 93 | else: |
|---|
| 94 | return RecaptchaResponse (is_valid=False, error_code = return_values [1]) |
|---|
| 95 | |
|---|
| 96 | |
|---|
