diff --git a/plugins/oauth_client/models/oauth_client_plugin/noosfero_oauth2_auth.rb b/plugins/oauth_client/models/oauth_client_plugin/noosfero_oauth2_auth.rb
new file mode 100644
index 0000000..cb468b8
--- /dev/null
+++ b/plugins/oauth_client/models/oauth_client_plugin/noosfero_oauth2_auth.rb
@@ -0,0 +1,15 @@
+class OauthClientPlugin::NoosferoOauth2Auth < OauthClientPlugin::Auth
+
+  def image_url(size = nil)
+    size = IMAGE_SIZES[size] || IMAGE_SIZES[:icon]
+    URI.join("http://#{self.external_person.source}/profile/#{self.external_person.identifier}/", size)
+  end
+
+  def profile_url
+    "http://#{self.external_person.source}/profile/#{self.external_person.identifier}"
+  end
+
+  def settings_url
+    "http://#{self.external_person.source}/myprofile/#{self.external_person.identifier}"
+  end
+end
diff --git a/plugins/oauth_client/models/oauth_client_plugin/twitter_auth.rb b/plugins/oauth_client/models/oauth_client_plugin/twitter_auth.rb
new file mode 100644
index 0000000..ec3d47c
--- /dev/null
+++ b/plugins/oauth_client/models/oauth_client_plugin/twitter_auth.rb
@@ -0,0 +1,7 @@
+class OauthClientPlugin::TwitterAuth < OauthClientPlugin::Auth
+
+  def image_url(size = nil)
+    size = IMAGE_SIZES[size] || IMAGE_SIZES[:icon]
+    self.external_person_image_url
+  end
+end
--
libgit2 0.21.2