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yass_webui.rb 3.37 KiB
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#!/usr/bin/env ruby


#


# ==========================================================================


# samples/yass_webui.rb (2024-01-27)


#


# written by cleemy desu wayo / Licensed under CC0 1.0


#


# official repository: https://gitlab.com/cleemy-desu-wayo/yass


# ==========================================================================


#


# * how to start:


#


#   1. put main body of yass in the current directory (yass-a-sed.py, etc.)


#   2. put samples (including this script) to samples/ directory


#   3. run this script:


#      $ samples/yass_webui.rb 8080


#   4. access to the following on browser:


#      http://localhost:8080/yass


#




require 'webrick'


require 'open3'




webui_port = '8080'


webui_port = ARGV[0] if ARGV[0]


puts "webui_port: #{webui_port}"




repository_url         = 'https://gitlab.com/cleemy-desu-wayo/yass'


repository_url_escaped = WEBrick::HTMLUtils.escape(repository_url.to_s)


user_escaped = ''


pass_escaped = ''




websrv = WEBrick::HTTPServer.new({:DocumentRoot => './', :Port => webui_port})




websrv.mount_proc('/yass') do |req, res|


  r = req.query




  res.body = <<~EOS


        <!doctype html>


        <html><head>


        <meta charset="utf-8">


        <title>yass sample Web UI (2024-01-27)</title>


        <style>


          * {margin: 0 0 0 0.3rem;}


          h2 {margin: 1rem 0 0.2rem 0;}


          form {font-size: 120%; margin-top: 2rem;}


          input, button {font-size: 120%;}


          hr {margin: 1rem 0 1rem 0;}


          .result {max-width: 40rem; font-size: 120%; margin-left: 1.8rem; padding: 0.4rem; background-color: #cccccc;}


        </style></head><body>


        <h1>yass sample Web UI (2024-01-27)</h1>


        <p>written by cleemy desu wayo / Licensed under CC0 1.0</p>


        <p>official repository: <a href="#{repository_url_escaped}">#{repository_url_escaped}</a></p>


        <hr>


  EOS




  passwd_file_path    = 'samples/passwd.txt'


  res.body += "<h2>#{WEBrick::HTMLUtils.escape(passwd_file_path.to_s)}</h2>\n"




  if File.readable?(passwd_file_path)


    passwd_file_content = File.read(passwd_file_path)


    res.body += "<pre>#{WEBrick::HTMLUtils.escape(passwd_file_content.to_s)}</pre>\n"


  else


    res.body += "<p style=\"color:red\">ERROR: not found (or not readable)</p>\n"


  end




  res.body += "<hr>\n"




  if not r.empty?


    ("a".."d").each do |version|
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      file_path = "samples/sample_yass-#{version}-sed.sh"


      res.body += "<h2>#{WEBrick::HTMLUtils.escape(file_path.to_s)}</h2>\n"




      # if not found (or not executable)


      if not File.executable?(file_path)


        res.body += "<p style=\"color:red\">ERROR: not found (or not executable)</p>\n"


        next


      end




      command_result, _, command_status = Open3.capture3(file_path, r['user'], r['pass'])


      res.body += <<~EOS


            <div class="result">


            <p>result: #{WEBrick::HTMLUtils.escape(command_result.to_s)}</p>


            <p>exit status: #{WEBrick::HTMLUtils.escape(command_status.exitstatus.to_s)}</p>


            </div>


      EOS


    end




    user_escaped = WEBrick::HTMLUtils.escape(r['user'].force_encoding("UTF-8"))


    pass_escaped = WEBrick::HTMLUtils.escape(r['pass'].force_encoding("UTF-8"))


  end




  res.body += <<~EOS


        <form method="get">


        <p>user:<input type="text" name="user" value="#{user_escaped}"></p>


        <p>pass:<input type="text" name="pass" value="#{pass_escaped}"></p>


        <button>send</button></form>


        </body></html>


  EOS


end




websrv.start