1 files changed, 8 insertions, 1 deletions
diff --git a/lib/yahns/proxy_pass.rb b/lib/yahns/proxy_pass.rb
index 15c9f53..89c6ef8 100644
--- a/lib/yahns/proxy_pass.rb
+++ b/lib/yahns/proxy_pass.rb
@@ -172,7 +172,7 @@ class Yahns::ProxyPass # :nodoc:
      end
    end # class ReqRes
  
-  def initialize(dest)
+  def initialize(dest, opts = {})
      case dest
      when %r{\Aunix:([^:]+)(?::(/.*))?\z}
        path = $2
@@ -184,6 +184,12 @@ class Yahns::ProxyPass # :nodoc:
      else
        raise ArgumentError, "destination must be an HTTP URL or unix: path"
      end
+    @response_headers = opts[:response_headers] || {}
+
+    # It's wrong to send the backend Server tag through.  Let users say
+    # { "Server => "yahns" } if they want to advertise for us, but don't
+    # advertise by default (for security)
+    @response_headers['Server'] ||= :ignore
      init_path_vars(path)
    end
  
@@ -237,6 +243,7 @@ class Yahns::ProxyPass # :nodoc:
      ctype = env["CONTENT_TYPE"] and req << "Content-Type: #{ctype}\r\n"
      clen = env["CONTENT_LENGTH"] and req << "Content-Length: #{clen}\r\n"
      input = chunked || (clen && clen.to_i > 0) ? env['rack.input'] : nil
+    env['yahns.proxy_pass.response_headers'] = @response_headers
  
      # finally, prepare to emit the headers
      rr.req_start(c, req << "\r\n".freeze, input, chunked)