lib/brakeman/checks/check_json_parsing.rb in brakeman-min-3.0.5 vs lib/brakeman/checks/check_json_parsing.rb in brakeman-min-3.1.0

@@ -18,11 +18,11 @@
                       "2.3.16"
                     elsif version_between? "3.0.0", "3.0.19"
                       "3.0.20"
                     end
 
-      message = "Rails #{tracker.config[:rails_version]} has a serious JSON parsing vulnerability: upgrade to #{new_version} or patch"
+      message = "Rails #{rails_version} has a serious JSON parsing vulnerability: upgrade to #{new_version} or patch"
       if uses_yajl?
         gem_info = gemfile_or_environment(:yajl)
       else
         gem_info = gemfile_or_environment
       end
@@ -36,11 +36,11 @@
     end
   end
 
   #Check if `yajl` is included in Gemfile
   def uses_yajl?
-    tracker.config[:gems][:yajl]
+    tracker.config.has_gem? :yajl
   end
 
   #Check for `ActiveSupport::JSON.backend = "JSONGem"`
   def uses_gem_backend?
     matches = tracker.check_initializers(:'ActiveSupport::JSON', :backend=)
@@ -58,10 +58,10 @@
     false
   end
 
   def check_cve_2013_0269
     [:json, :json_pure].each do |name|
-      gem_hash = tracker.config[:gems][name] if tracker.config[:gems]
+      gem_hash = tracker.config.get_gem name
       check_json_version name, gem_hash[:version] if gem_hash and gem_hash[:version]
     end
   end
 
   def check_json_version name, version