Make work on Fedora M1 and use faye on http for development

app/models/user.rb

@@ -36,11 +36,9 @@ class User
   #view :by_provider, key: [:provider, :uid]
   view :by_provider_and_uid, key: [:provider, :uid]
 
-  def self.find_for_oauth(auth_data, user)
+  def self.find_for_oauth(auth_data, controller_current_user)
     #user = database.view(self.by_provider(key: [auth_data.provider, auth_data.uid], limit: 1)).first
-    user = find_by_provider_and_uid(auth_data.provider, auth_data.uid)
-
-    user || create(
+    attributes = {
       provider: auth_data.provider,
       uid: auth_data.uid,
       name: auth_data.info.nickname,
@@ -49,7 +47,19 @@ class User
       oauth_token:  auth_data.credentials.token,
       oauth_expires_at: auth_data.credentials.expires ? Time.at(auth_data.credentials.expires_at) : nil,
       auth_data: auth_data
-    )
+    }
+
+    if user = find_by_email(attributes[:email])
+      # Update the provider attributes to keep the email unique and valid. This means that
+      # if two people from other providers, with the same e-mail, can hijack the mozo account.
+      # probability: around zero
+      unless user.provider == attributes[:provider] and user.uid == attributes[:uid]
+        user.update attributes
+      end
+    else
+      user = create attributes
+    end
+    user
   end
 
   # needed for cmtool