Merge pull request #877 from KenxinKun/gorilla-fix-context-scope-vari…

…able-template

Fixes missing sanitation of context key variable in gorilla server

Closes #874.

pkg/codegen/templates/gorilla/gorilla-middleware.tmpl

@@ -40,7 +40,7 @@ func (siw *ServerInterfaceWrapper) {{$opid}}(w http.ResponseWriter, r *http.Requ
   {{end}}
 
 {{range .SecurityDefinitions}}
-  ctx = context.WithValue(ctx, {{.ProviderName | ucFirst}}Scopes, {{toStringArray .Scopes}})
+  ctx = context.WithValue(ctx, {{.ProviderName | sanitizeGoIdentity | ucFirst}}Scopes, {{toStringArray .Scopes}})
 {{end}}
 
   {{if .RequiresParamObject}}
@@ -253,4 +253,3 @@ type TooManyValuesForParamError struct {
 func (e *TooManyValuesForParamError) Error() string {
     return fmt.Sprintf("Expected one value for %s, got %d", e.ParamName, e.Count)
 }
-