def test_adjust_scheme(self):
        c = typepad.tpclient.TypePadClient()
        c.endpoint = 'http://api.typepad.com'

        c.clear_credentials()
        self.assertScheme(c.endpoint, 'http')

        c.clear_credentials()
        c.add_credentials('a', 'b')
        self.assertScheme(c.endpoint, 'http')

        c.clear_credentials()
        c.add_credentials('a', 'b', domain='api.typepad.com')
        self.assertScheme(c.endpoint, 'http')

        c.clear_credentials()
        c.add_credentials(OAuthConsumer('a', 'b'), OAuthToken('c', 'd'))
        self.assertScheme(c.endpoint, 'https')

        c.clear_credentials()
        c.add_credentials(OAuthConsumer('a', 'b'),
                          OAuthToken('c', 'd'),
                          domain='api.example.com')
        self.assertScheme(c.endpoint, 'http')

        c.clear_credentials()
        c.add_credentials(OAuthConsumer('a', 'b'),
                          OAuthToken('c', 'd'),
                          domain='typepad.com')
        self.assertScheme(c.endpoint, 'http')

        # This time for sure!!
        c.clear_credentials()
        c.add_credentials(OAuthConsumer('a', 'b'),
                          OAuthToken('c', 'd'),
                          domain='api.typepad.com')
        self.assertScheme(c.endpoint, 'https')

        # Try it again.
        c.clear_credentials()
        c.add_credentials(OAuthConsumer('a', 'b'),
                          OAuthToken('c', 'd'),
                          domain='api.typepad.com')
        self.assertScheme(c.endpoint, 'https')

        # Check that clearing works.
        c.clear_credentials()
        self.assertScheme(c.endpoint, 'http')
Exemple #2
0
    def get_request(self, headers=None, **kwargs):
        request = super(Flixject, self).get_request(headers=headers, **kwargs)
        method = request.get('method', 'GET')

        # Apply OAuthness.
        csr = OAuthConsumer(*self.api_token)
        orq = OAuthRequest.from_consumer_and_token(csr,
                                                   http_method=method,
                                                   http_url=request['uri'])

        # OAuthRequest will strip our query parameters, so add them back in.
        parts = list(urlparse.urlparse(self._location))
        queryargs = cgi.parse_qs(parts[4], keep_blank_values=True)
        for key, value in queryargs.iteritems():
            orq.set_parameter(key, value[0])

        # Sign the request.
        osm = OAuthSignatureMethod_HMAC_SHA1()
        orq.set_parameter('oauth_signature_method', osm.get_name())
        orq.sign_request(osm, csr, None)

        if method == 'GET':
            request['uri'] = orq.to_url()
        else:
            request['headers'].update(orq.to_header())

        return request
    def test_consumer_property(self):
        c = typepad.tpclient.TypePadClient()
        c.endpoint = 'http://api.typepad.com'

        # make sure initial credentials are clear
        self.assert_(len(c.authorizations) == 0)
        self.assert_(len(c.credentials.credentials) == 0)

        # we can specify consumer and token as OAuth objects
        c.consumer = OAuthConsumer('x', 'y')
        c.token = OAuthToken('z', 'q')
        self.assert_(len(c.credentials.credentials) == 1)
        self.assertScheme(c.endpoint, 'https')

        # we can specify consumer and token as tuples of key/secrets
        c.consumer = ('a', 'b')
        c.token = ('a', 'b')
        self.assert_(len(c.credentials.credentials) == 1)
        self.assertScheme(c.endpoint, 'https')

        # assigning "None" to either token or consumer will
        # effectively clear credentials also
        c.token = None
        self.assert_(len(c.credentials.credentials) == 0)
        self.assertScheme(c.endpoint, 'http')

        c.clear_credentials()
        self.assertScheme(c.endpoint, 'http')
    def test_responseful(self):
        request = {
            'uri': mox.Func(self.saver('uri')),
            'method': 'POST',
            'headers': mox.Func(self.saver('headers')),
            'body': mox.Func(self.saver('body')),
        }
        response = {
            'status': 200,
            'content-type': 'application/json',
        }
        response_content = '{"blahdeblah": true, "anotherthing": "2010-07-06T16:17:05Z"}'

        http = typepad.TypePadClient()
        typepad.client = http
        http.add_credentials(
            OAuthConsumer('consumertoken', 'consumersecret'),
            OAuthToken('tokentoken', 'tokensecret'),
            domain='api.typepad.com',
        )

        mock = mox.Mox()
        mock.StubOutWithMock(http, 'request')
        http.request(**request).AndReturn((httplib2.Response(response), response_content))
        mock.ReplayAll()

        class Moose(typepad.TypePadObject):

            class Snert(typepad.TypePadObject):
                volume = typepad.fields.Field()
                target = typepad.fields.Object('User')
            class SnertResponse(typepad.TypePadObject):
                blahdeblah = typepad.fields.Field()
                anotherthing = typepad.fields.Datetime()
            snert = typepad.fields.ActionEndpoint(api_name='snert', post_type=Snert, response_type=SnertResponse)

        moose = Moose()
        moose._location = 'https://api.typepad.com/meese/7.json'

        ret = moose.snert(volume=10, target=typepad.User(display_name='fred'))
        self.assert_(ret is not None)
        self.assert_(isinstance(ret, Moose.SnertResponse))

        mock.VerifyAll()

        self.assert_(self.uri)
        self.assertEquals(self.uri, 'https://api.typepad.com/meese/7/snert.json')
        self.assert_(self.headers)
        self.assert_(self.body)

        self.assert_(utils.json_equals({
            'volume': 10,
            'target': {
                'displayName': 'fred',
                'objectType': 'User',
            },
        }, self.body))
Exemple #5
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    def __init__(self, domain_name=None):
        BaseSpider.__init__(self, domain_name)

        consumer_key = config.get('yammer', 'consumer_key')
        consumer_secret = config.get('yammer', 'consumer_secret')
        app_token = config.get('yammer', 'app_token')

        self.consumer = OAuthConsumer(consumer_key, consumer_secret)
        self.signature = OAuthSignatureMethod_PLAINTEXT()
        self.token = OAuthToken.from_string(app_token)
    def test_real_file(self):
        request = {
            'uri': mox.Func(self.saver('uri')),
            'method': 'POST',
            'headers': mox.Func(self.saver('headers')),
            'body': mox.Func(self.saver('body')),
        }
        response = {
            'status': 201,
        }

        http = typepad.TypePadClient()
        typepad.client = http
        http.add_credentials(
            OAuthConsumer('consumertoken', 'consumersecret'),
            OAuthToken('tokentoken', 'tokensecret'),
            domain='api.typepad.com',
        )

        mock = mox.Mox()
        mock.StubOutWithMock(http, 'request')
        http.request(**request).AndReturn((response, ''))
        mock.ReplayAll()

        asset = typepad.Photo()
        asset.title = "One-by-one png"
        asset.content = "This is a 1×1 transparent PNG."

        fileobj = file(os.path.join(os.path.dirname(__file__), 'onebyone.png'))
        brupload = typepad.BrowserUploadEndpoint()
        brupload.upload(asset, fileobj, "image/png",
            post_type='photo')

        mock.VerifyAll()

        response = self.message_from_response(self.headers, self.body)

        (filepart,) = [part for part in response.get_payload()
            if part.get_param('name', header='content-disposition') == 'file']

        self.assertEquals(filepart.get_content_type(), 'image/png')

        # If there's a transfer encoding, it has to be the identity encoding.
        transenc = filepart.get('content-transfer-encoding')
        self.assert_(transenc is None or transenc == 'identity')

        # Check that the file content is equivalent without decoding.
        fileobj.seek(0)
        filecontent = fileobj.read()
        fileobj.close()
        self.assertEquals(filepart.get_payload(decode=False), filecontent)

        filelength = filepart.get('content-length')
        self.assertEquals(int(filelength), len(filecontent))
Exemple #7
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def auth(request, site):
	creds = OAUTH_CREDENTIALS.get(site.upper())
	if not creds:
		raise Http404('Site %s not found' % site)
	
	urls = creds.get('URLS', {})
	
	if 'DIALOG' in urls:
		request.session['preauth_url'] = request.META.get('HTTP_REFERER')
		return HttpResponseRedirect(urls['DIALOG'])
	
	ssl = creds.get('SSL', False)
	server = creds.get('SERVER', '%s.com' % site.lower())
	klass = ssl and HTTPSConnection or HTTPConnection
	
	request.session['preauth_url'] = request.META.get('HTTP_REFERER')
	
	consumer = OAuthConsumer(
		str(creds['CONSUMER_KEY']),
		str(creds['CONSUMER_SECRET'])
	)
	
	oauth_request = OAuthRequest.from_consumer_and_token(
		consumer, http_url = urls.get('REQUEST_TOKEN')
	)
	
	oauth_request.sign_request(SIGNATURE_METHOD(), consumer, None)
	url = oauth_request.to_url()
	
	connection = klass(server)
	connection.request(oauth_request.http_method, url)
	response = connection.getresponse()
	resp = response.read()
	
	token = OAuthToken.from_string(resp)
	request.session['unauth_token'] = token
	
	auth_url = urls.get('AUTHORISATION')
	if isinstance(auth_url, (list, tuple)):
		params = auth_url[1]
		auth_url = auth_url[0]
	else:
		params = {}
	
	oauth_request = OAuthRequest.from_consumer_and_token(
		consumer, token = token,
		http_url = auth_url, parameters = params
	)
	
	oauth_request.sign_request(SIGNATURE_METHOD(), consumer, token)
	return HttpResponseRedirect(
		oauth_request.to_url()
	)
    def test_redirect(self):
        request = {
            'uri': mox.Func(self.saver('uri')),
            'method': 'POST',
            'headers': mox.Func(self.saver('headers')),
            'body': mox.Func(self.saver('body')),
        }
        response = {
            'status': 302,
            'location': 'http://client.example.com/hi',
        }

        http = typepad.TypePadClient()
        typepad.client = http
        http.add_credentials(
            OAuthConsumer('consumertoken', 'consumersecret'),
            OAuthToken('tokentoken', 'tokensecret'),
            domain='api.typepad.com',
        )

        mock = mox.Mox()
        mock.StubOutWithMock(http, 'request')
        http.request(**request).AndReturn((response, ''))
        mock.ReplayAll()

        asset = typepad.Photo()
        asset.title = "Fake photo"
        asset.content = "This is a made-up photo for testing automated browser style upload."

        fileobj = StringIO('hi hello pretend file')
        brupload = typepad.BrowserUploadEndpoint()
        brupload.upload(asset, fileobj, "image/png",
            redirect_to='http://client.example.com/hi',
            post_type='photo')

        mock.VerifyAll()

        # Verify the headers and body.
        self.assert_(self.headers)
        self.assert_(self.body)
        response = self.message_from_response(self.headers, self.body)

        bodyparts = response.get_payload()
        self.assertEquals(len(bodyparts), 4)
        bodyparts = dict((part.get_param('name', header='content-disposition'),
            part) for part in bodyparts)

        # Confirm that the redirect_to was sent.
        self.assert_('redirect_to' in bodyparts)
        self.assertEquals(bodyparts['redirect_to'].get_payload(),
            'http://client.example.com/hi')
    def test_responseless(self):
        request = {
            'uri': mox.Func(self.saver('uri')),
            'method': 'POST',
            'headers': mox.Func(self.saver('headers')),
            'body': mox.Func(self.saver('body')),
        }
        response = {
            'status': 204,  # no content
        }

        http = typepad.TypePadClient()
        typepad.client = http
        http.add_credentials(
            OAuthConsumer('consumertoken', 'consumersecret'),
            OAuthToken('tokentoken', 'tokensecret'),
            domain='api.typepad.com',
        )

        mock = mox.Mox()
        mock.StubOutWithMock(http, 'request')
        http.request(**request).AndReturn((httplib2.Response(response), ''))
        mock.ReplayAll()

        class Moose(typepad.TypePadObject):

            class Snert(typepad.TypePadObject):
                volume = typepad.fields.Field()
            snert = typepad.fields.ActionEndpoint(api_name='snert', post_type=Snert)

        moose = Moose()
        moose._location = 'https://api.typepad.com/meese/7.json'

        ret = moose.snert(volume=10)
        self.assert_(ret is None)

        mock.VerifyAll()

        self.assert_(self.uri)
        self.assertEquals(self.uri, 'https://api.typepad.com/meese/7/snert.json')
        self.assert_(self.headers)
        self.assert_(self.body)

        self.assert_(utils.json_equals({
            'volume': 10
        }, self.body))
Exemple #10
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    def __init__(self, user, token=None):
        """Initialize an oauth-authenticated test client.

        :param user: The user to authenticate.
        :type user: django.contrib.auth.models.User
        :param token: Optional token to authenticate `user` with.  If
            no `token` is given, the user's first token will be used.
        :type token: oauth.oauth.OAuthToken
        """
        super(OAuthAuthenticatedClient, self).__init__()
        if token is None:
            # Get the user's first token.
            token = get_auth_tokens(user)[0]
        assert token.user == user, "Token does not match User."
        consumer = token.consumer
        self.consumer = OAuthConsumer(consumer.key.encode("ascii"),
                                      consumer.secret.encode("ascii"))
        self.token = OAuthToken(token.key.encode("ascii"),
                                token.secret.encode("ascii"))
Exemple #11
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 def validate(self, request, data):
     signature_method = OAuthSignatureMethod_HMAC_SHA1()
     consumer = OAuthConsumer(self.CONSUMER_KEY, self.CONSUMER_SECRET)
     try:
         oauth_token = data['oauth_token']
         oauth_verifier = data.get('oauth_verifier', None)
     except MultiValueDictKeyError:
         messages.error(request, lang.BACKEND_ERROR)
         raise Redirect('publicauth-login')
     oauth_req = OAuthRequest.from_consumer_and_token(
         consumer, http_url=self.ACCESS_TOKEN_URL)
     oauth_req.set_parameter('oauth_token', oauth_token)
     if oauth_verifier:
         oauth_req.set_parameter('oauth_verifier', oauth_verifier)
     oauth_req.sign_request(signature_method, consumer, None)
     response = urllib.urlopen(oauth_req.to_url()).read()
     self.identity = urlparse.parse_qs(
         response, keep_blank_values=False)['oauth_token'][0]
     return response
Exemple #12
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    def begin(self, request, data):
        """
        Try to get Request Token from OAuth Provider and 
        redirect user to provider's site for approval.
        """
        consumer = OAuthConsumer(self.CONSUMER_KEY, self.CONSUMER_SECRET)
        signature_method = OAuthSignatureMethod_HMAC_SHA1()
        callback = request.build_absolute_uri(
            reverse('publicauth-complete', args=[self.provider]))
        oauth_req = OAuthRequest.from_consumer_and_token(
            consumer, callback=callback, http_url=self.REQUEST_TOKEN_URL)
        oauth_req.sign_request(signature_method, consumer, None)
        response = urllib.urlopen(oauth_req.to_url()).read()

        token = OAuthToken.from_string(response)  # instatiate token

        oauth_req = OAuthRequest.from_consumer_and_token(
            consumer, token, http_url=self.AUTHORIZE_URL)
        oauth_req.sign_request(signature_method, consumer, token)
        raise Redirect(oauth_req.to_url())
Exemple #13
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    def __init__(self,
                 consumer_key,
                 consumer_secret,
                 access_token_key=None,
                 access_token_secret=None,
                 proxy_host=None,
                 proxy_port=None,
                 proxy_username=None,
                 proxy_password=None):
        """ Register applications at
        https://www.yammer.com/client_applications/new in order to get
        consumer key and secret.

        Keyword arguments:
        consumer key -- identifies a Yammer application
        consumer secret -- establishes ownership of the consumer key
        access token key -- an OAuth access token (optional)
        access token secret -- establishes ownership of the access key
                               (optional)
        proxy host -- host name of proxy server (optional)
        proxy port -- port number (optional)
        proxy username -- used if proxy requires authentication (optional)
        proxy password -- used if proxy requires authentication (optional)

        """
        self._proxy_host = None
        self._proxy_host = None
        self._proxy_username = None
        self._proxy_password = None
        self._access_token = None

        try:
            self._consumer = OAuthConsumer(consumer_key, consumer_secret)
            # Could not get HMAC-SHA1 to work but since Yammer is using
            # HTTPS, plaintext should be fine.
            #
            # self._signature = OAuthSignatureMethod_HMAC_SHA1()
            self._signature = OAuthSignatureMethod_PLAINTEXT()
        except OAuthError, m:
            raise YammerError(m.message)
Exemple #14
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def callback(key, secret, request):
    token = request.session.get('unauth_token')
    if not token:
        raise Exception('No unauthorised token')

    if token.key != request.GET.get('oauth_token', None):
        raise Exception('Token does not match')

    verifier = request.GET.get('oauth_verifier')
    consumer = OAuthConsumer(str(key), str(secret))

    oauth_request = OAuthRequest.from_consumer_and_token(
        consumer,
        token=token,
        http_url='https://twitter.com/oauth/access_token',
        parameters={'oauth_verifier': verifier})

    oauth_request.sign_request(SIGNATURE_METHOD(), consumer, token)
    url = oauth_request.to_url()

    access_token = OAuthToken.from_string(urlopen(url).read())

    return access_token
Exemple #15
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def redirect(key, secret, request):
    consumer = OAuthConsumer(str(key), str(secret))

    oauth_request = OAuthRequest.from_consumer_and_token(
        consumer, http_url='https://twitter.com/oauth/request_token')

    oauth_request.sign_request(SIGNATURE_METHOD(), consumer, None)
    url = oauth_request.to_url()

    connection = HTTPSConnection('twitter.com')
    connection.request(oauth_request.http_method, url)
    response = connection.getresponse()
    resp = response.read()

    token = OAuthToken.from_string(resp)
    request.session['unauth_token'] = token

    auth_url = 'https://twitter.com/oauth/authorize'
    if isinstance(auth_url, (list, tuple)):
        params = auth_url[1]
        auth_url = auth_url[0]
    else:
        params = {}

    oauth_request = OAuthRequest.from_consumer_and_token(consumer,
                                                         token=token,
                                                         http_url=auth_url,
                                                         parameters=params)

    oauth_request.sign_request(SIGNATURE_METHOD(), consumer, token)

    if request.is_ajax():
        return HttpResponse('<script>document.location = \'%s\';</script>' %
                            oauth_request.to_url())
    else:
        return HttpResponseRedirect(oauth_request.to_url())
    def test_basic(self):
        request = {
            'uri': mox.Func(self.saver('uri')),
            'method': 'POST',
            'headers': mox.Func(self.saver('headers')),
            'body': mox.Func(self.saver('body')),
        }
        response = {
            'status': 201,  # created
        }

        http = typepad.TypePadClient()
        typepad.client = http
        http.add_credentials(
            OAuthConsumer('consumertoken', 'consumersecret'),
            OAuthToken('tokentoken', 'tokensecret'),
            domain='api.typepad.com',
        )

        mock = mox.Mox()
        mock.StubOutWithMock(http, 'request')
        http.request(**request).AndReturn((response, ''))
        mock.ReplayAll()

        asset = typepad.Photo()
        asset.title = "Fake photo"
        asset.content = "This is a made-up photo for testing automated browser style upload."

        fileobj = StringIO('hi hello pretend file')
        brupload = typepad.BrowserUploadEndpoint()
        brupload.upload(asset, fileobj, "image/png",
            post_type='photo')

        mock.VerifyAll()

        self.assert_(self.uri)
        # We added credentials, so it should be a secure URL.
        self.assert_(self.uri.startswith('https://api.typepad.com/browser-upload.json'))
        uriparts = list(urlparse(self.uri))
        querydict = cgi.parse_qs(uriparts[4])

        # TODO: really verify the signature

        # Verify the headers and body.
        self.assert_(self.headers)
        self.assert_(self.body)
        responsemsg = self.message_from_response(self.headers, self.body)

        content_type = responsemsg.get_content_type()
        self.assert_(content_type)
        self.assert_(not responsemsg.defects)

        # Check that the unparsed body has its internal mime headers
        # separated by full CRLFs, not just LFs.
        self.assert_('\r\nContent-Type:' in self.body)
        # Check that boundaries are separated by full CRLFs too.
        boundary = responsemsg.get_param('boundary')
        self.assert_(boundary + '\r\n' in self.body)

        # Make sure we're only putting credentials in the query string, not
        # the headers.
        self.assert_('oauth_signature' in querydict)
        self.assert_('authorization' not in responsemsg)
        self.assert_('Authorization' not in responsemsg)

        bodyparts = responsemsg.get_payload()
        self.assertEquals(len(bodyparts), 3)
        bodyparts = dict((part.get_param('name', header='content-disposition'),
            part) for part in bodyparts)

        self.assertEquals(bodyparts['post_type'].get_payload(), 'photo')
        self.assert_('redirect_to' not in bodyparts)

        asset_json = bodyparts['asset'].get_payload()
        self.assert_(utils.json_equals({
            'title': 'Fake photo',
            'content': 'This is a made-up photo for testing automated browser style upload.',
            'objectType': 'Photo',
        }, asset_json))

        filepart = bodyparts['file']
        self.assertEquals(filepart.get_payload(decode=False), 'hi hello pretend file')
        filelength = filepart.get('content-length')
        self.assertEquals(int(filelength), len('hi hello pretend file'))
        filename = filepart.get_param('filename', header='content-disposition')
        self.assert_(filename)
Exemple #17
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def return_auth(request, site):
	creds = OAUTH_CREDENTIALS.get(site.upper())
	if not creds:
		raise Http404('Site %s not found' % site)
	
	urls = creds.get('URLS', {})
	ssl = creds.get('SSL', False)
	server = creds.get('SERVER', '%s.com' % site.lower())
	
	if not 'DIALOG' in urls:
		token = request.session.get('unauth_token')
		if not token:
			return HttpResponse('No unauthorised token')
	
		if token.key != request.GET.get('oauth_token', None):
			if request.session.get('preauth_url'):
				return HttpResponseRedirect(
					request.session['preauth_url']
				)
			else:
				return HttpResponse('')
	
		verifier = request.GET.get('oauth_verifier')
		consumer = OAuthConsumer(
			str(creds.get('CONSUMER_KEY')),
			str(creds.get('CONSUMER_SECRET'))
		)

		oauth_request = OAuthRequest.from_consumer_and_token(
			consumer, token = token,
			http_url = urls.get('ACCESS_TOKEN'),
			parameters = {
				'oauth_verifier': verifier
			}
		)

		oauth_request.sign_request(SIGNATURE_METHOD(), consumer, token)
		url = oauth_request.to_url()
		
		access_token = OAuthToken.from_string(
			urlopen(url).read()
		)
		
		if request.user.is_authenticated():
			try:
				token = request.user.oauth_tokens.get(
					site = site
				)
				
				token.token = access_token.key
				token.secret = access_token.secret
				token.save()
			except core.OAuthToken.DoesNotExist:
				request.user.oauth_tokens.create(
					site = site,
					token = access_token.key,
					secret = access_token.secret
				)
		else:
			return HttpResponse('')
	else:
		url = urls.get('ACCESS_TOKEN') % request.GET.get('code')
		resp = urlopen(url).read()
		d = {}
		
		for (key, value) in [i.split('=') for i in resp.split('&')]:
			if key:
				d[key] = value
		
		if request.user.is_authenticated():
			try:
				token = request.user.oauth_tokens.get(
					site = site
				)
				
				token.token = d['access_token']
				token.save()
			except core.OAuthToken.DoesNotExist:
				request.user.oauth_tokens.create(
					site = site,
					token = d['access_token']
				)
		else:
			return HttpResponse('')
	
	if request.session.get('preauth_url'):
		messages.add_message(
			request,
			messages.SUCCESS,
			u'You have been successfully connected to %s.' % creds.get(
				'VERBOSE_NAME', site.capitalize()
			)
		)
		
		return HttpResponseRedirect(
			request.session['preauth_url']
		)
	else:
		return HttpResponse('')
Exemple #18
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 def _token_set(self, token):
     consumer = token.consumer
     self.consumer = OAuthConsumer(consumer.key, consumer.secret)
     self.token = OAuthToken(token.key, token.secret)
Exemple #19
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 def __init__(self):
     self.consumer = OAuthConsumer(GITHUB_CLIENT_ID, GITHUB_CLIENT_SECRET)
Exemple #20
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# Get a Twitter access token for use with Sycorax

from oauth.oauth import (OAuthConsumer, OAuthRequest, OAuthToken,
                         OAuthSignatureMethod_HMAC_SHA1 as HMAC)
from twitter import ACCESS_TOKEN_URL, AUTHORIZATION_URL, REQUEST_TOKEN_URL
from keys import TWITTER_CONSUMER_KEY, TWITTER_CONSUMER_SECRET
from httplib2 import Http
import json
import sys
import urlparse

consumer = OAuthConsumer(TWITTER_CONSUMER_KEY, TWITTER_CONSUMER_SECRET)


def get_request_token():

    oauth_request = OAuthRequest.from_consumer_and_token(
        consumer,
        http_method="POST",
        http_url=REQUEST_TOKEN_URL,
        callback="oob")

    oauth_request.sign_request(HMAC(), consumer, "")
    headers = oauth_request.to_header()

    client = Http()
    response, body = client.request(REQUEST_TOKEN_URL, "POST", headers=headers)
    token = OAuthToken.from_string(body)
    return token

 def oauth_consumer(self):
     """Return OAuthConsumer based on information contained in this model"""
     return OAuthConsumer(self.key, self.secret)