social_auth_avatars.py

# forms.py
class UserProfileForm(forms.ModelForm):
    class Meta:
        model = User
        fields = ("email", "last_name", "first_name", "middle_name", 'avatar', 'age', 'hobbies', 'about', 'project_interes')

    def __init__(self, *args, **kwargs):
        self.request = kwargs.pop('request')
        super(UserProfileForm, self).__init__(*args, **kwargs)
        for fname in ("email", "last_name", "first_name", 'age'):
            self.fields[fname].required=True
        avatars = [('upload', u'Загрузить с диска')]
        if self.instance.is_movescount_authorised(self.request):
            avatars.append(('movescount', u'Взять с Movescount'))
        for social in self.instance.get_connected_socials():
            avatars.append((social, u"Взять с {0}".format(settings.SOCIALS[social])))
        if len(avatars) != 1:
            self.fields['avatar_source'] = forms.ChoiceField(choices=avatars, initial="upload")
            self.fields.keyOrder = ["email", "last_name", "first_name", "middle_name", 'avatar_source', 'avatar', 'age', 'hobbies', 'about', 'project_interes']


    def clean_email(self):
        email = self.cleaned_data.get('email')
        if self.instance:
            user = self.instance
            if email and User.objects.filter(email=email).exclude(pk=user.pk).count():
                raise forms.ValidationError(u'Такая электронная почта уже существует.')
        return email


    def save(self, *args, **kwargs):
        user = super(UserProfileForm, self).save(*args, **kwargs)
        if 'avatar_source' in self.cleaned_data and self.cleaned_data['avatar_source'] != 'upload':
            avatar_source = self.cleaned_data['avatar_source']
            url, new_filename = user.get_avatar_url(avatar_source=avatar_source)
            if url:
                img_temp = NamedTemporaryFile(delete=True)
                img_temp.write(urllib2.urlopen(url).read())
                img_temp.flush()

                user.avatar.save(new_filename, File(img_temp))

        return user


# models.py
class User:
    def get_avatar_url(self, avatar_source):
        img_url = None
        new_filename = ''
        if avatar_source == 'movescount':
            from movescount.api import Movescount
            msc = Movescount(self)
            ret = msc.do_action('GET', 'members/private')
            if ret.parsed:
                img = ret.data['ImageURI']
                if img:
                    img = img.replace('.png', '_222.png')
                img_url = img
                new_filename = "movescount_{0}.png".format(self.pk)

        elif avatar_source == 'facebook':
            social_auth_item = self.social_auth.filter(provider="facebook")[0]
            img_url = "https://graph.facebook.com/{0}/picture?width=500&height=500".format(social_auth_item.uid)
            new_filename = "facebook_{0}.jpg".format(self.pk)
        elif avatar_source == 'vk-oauth':
            import urllib2
            social_auth_item = self.social_auth.filter(provider="vk-oauth")[0]
            api_url = "https://api.vkontakte.ru/method/users.get?uid={0}&fields=photo_max".format(social_auth_item.uid)
            vk_resp = json.loads(urllib2.urlopen(api_url).read())
            img = vk_resp['response'][0]['photo_max']
            if img != 'http://vk.com/images/camera_b.gif':
                img_url = img
                new_filename = "vk_{0}.jpg".format(self.pk)
        elif avatar_source == 'twitter':
            from twython import Twython
            from urlparse import parse_qs
            social_auth_item = self.social_auth.filter(provider="twitter")[0]
            auth_data = parse_qs(social_auth_item.extra_data['access_token'])
            t = Twython(app_key=settings.TWITTER_CONSUMER_KEY,
                app_secret=settings.TWITTER_CONSUMER_SECRET,
                oauth_token=auth_data['oauth_token'][0],
                oauth_token_secret=auth_data['oauth_token_secret'][0])
            user_data = t.show_user(user_id=social_auth_item.uid)
            img_url = user_data['profile_image_url'].replace('_normal.jpg', '.jpg')
            new_filename = "twitter_{0}.jpg".format(self.pk)

        return img_url, new_filename