better detection if there is redirect

lib/aspera/cli/plugins/config.rb

@@ -582,7 +582,8 @@ def identify_plugin_for_url(url)
                 Log.log.debug{"Cannot detect #{plugin_name_sym} : #{e.message}"}
               end
             end
-            return detection_info.merge(product: plugin_name_sym, url: current_url) unless detection_info.nil?
+            # if there is a redirect, then the detector can override the url.
+            return {product: plugin_name_sym, url: current_url}.merge(detection_info) unless detection_info.nil?
           end # loop
           raise "No known application found at #{url}"
         end

lib/aspera/cli/plugins/faspex.rb

@@ -46,7 +46,7 @@ def detect(base_url)
             if result[:http].body.start_with?('<?xml')
               res_s = XmlSimple.xml_in(result[:http].body, {'ForceArray' => false})
               version = res_s['XRD']['application']['version']
-              return {version: version}
+              return {version: version, url: result[:http].uri}
             end
             return nil
           end

lib/aspera/cli/plugins/faspex5.rb

@@ -17,12 +17,13 @@ module Plugins
       class Faspex5 < Aspera::Cli::BasicAuthPlugin
         RECIPIENT_TYPES = %w[user workgroup external_user distribution_list shared_inbox].freeze
         PACKAGE_TERMINATED = %w[completed failed].freeze
+        API_DETECT = 'api/v5/configuration/ping'
         class << self
           def detect(base_url)
             api = Rest.new(base_url: base_url, redirect_max: 1)
-            result = api.read('api/v5/configuration/ping')
+            result = api.read(API_DETECT)
             if result[:http].code.start_with?('2') && result[:http].body.strip.empty?
-              return {version: '5'}
+              return {version: '5', url: result[:http].uri.to_s[0..-(API_DETECT.length + 2)]}
             end
             return nil
           end