4 ms·

That looks way oversimplified. I once wrote a minimal HTTP server in Lua for Nmap project and part of the problem was UTF8 security. Consider get_next_char_len

• loeg 9y ago
  The Lua code is just excessively verbose.
  • d33 9y ago
    What do you mean? How else would you implement a check for whether the prefix length is valid?
    • loeg 9y ago
      Here's the code to do it: https://github.com/skeeto/branchless-utf8/blob/master/utf8.h https://github.com/skeeto/branchless-utf8/blob/master/utf8.h It's pretty straightforward. He uses a lookup table for the first byte ("lengths") and then later checks that subsequent bytes have the correct continuation prefix (0xc0 mask / 0x2a value). I think it checks all of the same conditions as your Lua code.
• feelin_googley 9y ago
  Mimimal but useful. I just tried this httpd.lua script with djb's tcpserver and was pleasantly surprised. It is quick and handles large PDFs well enough. I like that there are no third party libraries. If directory listing and output for video could be added I might try using something like this on a local LAN as a replacement for the httpd binary I am using.
  • d33 9y ago
    Glad to hear you like it! What do you mean by output for video? As for video listing, Lua doesn't provide a cross-platform way to do this, but I might have hacks for Unix/Windows that parse the output of dir/ls commands. Interested? Can't promise I find it though.
    • feelin_googley 9y ago
      Briefly tested with a few filetypes and a couple of browsers, including Safari. Problem loading video/mp4, i.e., problem with "HTTP streaming". Maybe need to handle Range: header? Of course, any examples in Lua of different approaches to UNIX directory listing via HTTP are appreciated. Still a Lua noob.