Set app permissions parameter for flickr

fixes #618

allauth/socialaccount/providers/flickr/provider.py

@@ -28,6 +28,13 @@ def get_default_scope(self):
         scope = []
         return scope
 
+    def get_auth_params(self, request, action):
+        ret = super(FlickrProvider, self).get_auth_params(request,
+                                                          action)
+        if 'perms' not in ret:
+            ret['perms'] = 'read'
+        return ret
+
     def get_profile_fields(self):
         default_fields = ['id',
                           'first-name',

docs/providers.rst

@@ -143,6 +143,22 @@ The provider is OAuth2 based. More info:
 
 Note: This is not the same as the Mozilla Persona provider below.
 
+Flickr
+------
+
+App registration
+    https://www.flickr.com/services/apps/create/
+
+You can optionally specify the application permissions to use. If no `perms`
+value is set, the Flickr provider will use `read` by default.::
+
+    SOCIALACCOUNT_PROVIDERS = \
+        { 'flickr':
+            { 'AUTH_PARAMS': { 'perms': 'write' } }}
+
+More info:
+    https://www.flickr.com/services/api/auth.oauth.html#authorization
+
 GitHub
 ------