@pablobm commented on this pull request.
> + if params.expect(:provider) == "facebook"
+ encoded_signature, payload = params.expect(:signed_request).split(".",
2)
+ signature = Base64.urlsafe_decode64(encoded_signature)
+ if signature == OpenSSL::HMAC.digest("SHA256",
Settings.facebook_auth_secret, payload)
+ data = JSON.parse(Base64.urlsafe_decode64(payload))
+ user = User.find_by(:auth_provider => "facebook", :auth_uid =>
data["user_id"])
+
+ if user
+ user.auth_provider = nil
+ user.auth_uid = nil
+ user.save!
+
+ @confirmation_code = Rails
+ .application
+ .message_verifier(:social_login_deletion)
+ .generate([data["user_id"], Time.now.to_i])
+
+ render :formats => [:json]
+ else
+ head :not_found
+ end
+ else
+ head :bad_request
+ end
+ else
+ head :not_found
+ end
Full list of supported exceptions in
[actionpack:/lib/action_dispatch/middleware/exception_wrapper.rb](https://github.com/rails/rails/blob/3dadd10c72f161460626002f152ae426b582c64e/actionpack/lib/action_dispatch/middleware/exception_wrapper.rb#L12).
Custom ones probably can be added (I don't remember from the top of my head).
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