|
| 1 | +""" |
| 2 | +The MIT License |
| 3 | +
|
| 4 | +Copyright (c) 2010 Justin Plock |
| 5 | +
|
| 6 | +Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | +of this software and associated documentation files (the "Software"), to deal |
| 8 | +in the Software without restriction, including without limitation the rights |
| 9 | +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | +copies of the Software, and to permit persons to whom the Software is |
| 11 | +furnished to do so, subject to the following conditions: |
| 12 | +
|
| 13 | +The above copyright notice and this permission notice shall be included in |
| 14 | +all copies or substantial portions of the Software. |
| 15 | +
|
| 16 | +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | +THE SOFTWARE. |
| 23 | +""" |
| 24 | + |
| 25 | +import os |
| 26 | + |
| 27 | +from google.appengine.ext import webapp |
| 28 | +from google.appengine.ext import db |
| 29 | +from google.appengine.ext.webapp import util |
| 30 | +import oauth2 as oauth # httplib2 is required for this to work on AppEngine |
| 31 | + |
| 32 | +class Client(db.Model): |
| 33 | + # oauth_key is the Model's key_name field |
| 34 | + oauth_secret = db.StringProperty() # str(uuid.uuid4()) works well for this |
| 35 | + first_name = db.StringProperty() |
| 36 | + last_name = db.StringProperty() |
| 37 | + email_address = db.EmailProperty(required=True) |
| 38 | + password = db.StringProperty(required=True) |
| 39 | + |
| 40 | + @property |
| 41 | + def secret(self): |
| 42 | + return self.oauth_secret |
| 43 | + |
| 44 | +class OAuthHandler(webapp.RequestHandler): |
| 45 | + |
| 46 | + def __init__(self): |
| 47 | + self._server = oauth.Server() |
| 48 | + self._server.add_signature_method(oauth.SignatureMethod_HMAC_SHA1()) |
| 49 | + self._server.add_signature_method(oauth.SignatureMethod_PLAINTEXT()) |
| 50 | + |
| 51 | + def get_oauth_request(self): |
| 52 | + """Return an OAuth Request object for the current request.""" |
| 53 | + |
| 54 | + try: |
| 55 | + method = os.environ['REQUEST_METHOD'] |
| 56 | + except: |
| 57 | + method = 'GET' |
| 58 | + |
| 59 | + postdata = None |
| 60 | + if method in ('POST', 'PUT'): |
| 61 | + postdata = self.request.body |
| 62 | + |
| 63 | + return oauth.Request.from_request(method, self.request.uri, |
| 64 | + headers=self.request.headers, query_string=postdata) |
| 65 | + |
| 66 | + def get_client(self, request=None): |
| 67 | + """Return the client from the OAuth parameters.""" |
| 68 | + |
| 69 | + if not isinstance(request, oauth.Request): |
| 70 | + request = self.get_oauth_request() |
| 71 | + client_key = request.get_parameter('oauth_consumer_key') |
| 72 | + if not client_key: |
| 73 | + raise Exception('Missing "oauth_consumer_key" parameter in ' \ |
| 74 | + 'OAuth "Authorization" header') |
| 75 | + |
| 76 | + client = models.Client.get_by_key_name(client_key) |
| 77 | + if not client: |
| 78 | + raise Exception('Client "%s" not found.' % client_key) |
| 79 | + |
| 80 | + return client |
| 81 | + |
| 82 | + def is_valid(self): |
| 83 | + """Returns a Client object if this is a valid OAuth request.""" |
| 84 | + |
| 85 | + try: |
| 86 | + request = self.get_oauth_request() |
| 87 | + client = self.get_client(request) |
| 88 | + params = self._server.verify_request(request, client, None) |
| 89 | + except Exception, e: |
| 90 | + raise e |
| 91 | + |
| 92 | + return client |
| 93 | + |
| 94 | +class SampleHandler(OAuthHandler): |
| 95 | + def get(self): |
| 96 | + try: |
| 97 | + client = self.is_valid() |
| 98 | + except Exception, e: |
| 99 | + self.error(500) |
| 100 | + self.response.out.write(e) |
| 101 | + |
| 102 | +def main(): |
| 103 | + application = webapp.WSGIApplication([(r'/sample', SampleHandler)], |
| 104 | + debug=False) |
| 105 | + util.run_wsgi_app(application) |
| 106 | + |
| 107 | +if __name__ == '__main__': |
| 108 | + main() |
0 commit comments