Use python dropbox API with django

Question

I'm using DropboxOAuth2Flow method described for the dropbox API v1.6 in my Django v1.5.3 application and I'm having a 400 error when redirected to the dropbox oauth2 authorization page.

When I go to to my dropbox_auth_start URL I get redirected to:

https://www.dropbox.com/1/oauth2/authorize?state=tWd4Eh4nzk5NlcuHXe7ffA%3D%3D&redirect_uri=http%3A%2F%2Fmydomain.com%2Fdropbox_auth_finish&response_type=code&client_id=blahblahblah

And then the 400 error occurs.

The "dropbox-auth-csrf-token" is written in the session file by the way.

My django code:

views.py

def get_dropbox_auth_flow(web_app_session):
    redirect_uri = "http://www.mydomain.com"
    return DropboxOAuth2Flow('blahblahblah', 'blehblehbleh', redirect_uri, web_app_session, "dropbox-auth-csrf-token")

# URL handler for /dropbox-auth-start
def dropbox_auth_start(request):
    authorize_url = get_dropbox_auth_flow(request.session).start()
    return HttpResponseRedirect(authorize_url)

# URL handler for /dropbox-auth-finish
def dropbox_auth_finish(request):
    try:
        access_token, user_id, url_state = get_dropbox_auth_flow(request.session).finish(request.GET)
    except DropboxOAuth2Flow.BadRequestException, e:
        http_status(400)
    except DropboxOAuth2Flow.BadStateException, e:
        # Start the auth flow again.
        return HttpResponseRedirect("http://www.mydomain.com/dropbox_auth_start")
    except DropboxOAuth2Flow.CsrfException, e:
        return HttpResponseForbidden()
    except DropboxOAuth2Flow.NotApprovedException, e:
        raise e
    except DropboxOAuth2Flow.ProviderException, e:
        raise e

urls.py

from django.conf.urls import patterns, url, include
from django.contrib import admin
admin.autodiscover()


urlpatterns = patterns('',
    url(r'^dropbox_auth_start/?$',views.dropbox_auth_start),
    url(r'^dropbox_auth_finish/?$',views.dropbox_auth_finish),
)

Answer 1

Just like @smarx said, I just switched from HTTP and HTTPS, and everything worked just fine.