When I need a test web server that can serve a few files from some directory, I really like the simplicity of
ruby -run -e httpd . -p 8888
then browse to localhost:8888.
However, sometimes I'd like to add a tiny little bit to that, for example, set a specific mime type for a specific extension (I can edit /usr/lib/ruby/2.3.0/webrick/httputils.rb, but I'd rather not mess with system files), or add an Expires: header.
It seems like adding a header isn't that complicated, for example, looking at https://www.thecodingforums.com/threads/setting-expires-http-response-header.822995/.
However, I have zero knowledge about ruby, so I have no clue about how to add that to my command line. I guess it's just "create a file that has a subclass, pull it in, and tell ruby to use the subclass", but well .. that answer is 3 steps beyond me.
So, I'd be grateful for an answer that says "Put this into a file, then add that to your command line", with copy/pasteable examples of this and that.
Ok. Put this into a file server.rb for example:
require 'webrick'
class Server < WEBrick::HTTPServer
def service(req, res)
super
one_hour = 60 * 60
t = Time.now.gmtime + one_hour
res['Expires'] = t.strftime("%a, %d %b %Y %H:%M:%S GMT")
end
end
root = File.expand_path('.')
server = Server.new(Port: 8000, DocumentRoot: root)
trap('INT') { server.shutdown } # Ctrl-C to stop
server.start
Then run this in console:
ruby server.rb
It will serve files list from current directory.