Hoof: ruby webrick based web server for text to speech using espeak

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ruby webrick based web server for text to speech using espeak

#!/usr/bin/env ruby
require 'webrick'

#create the html of the 'index' page
@index_html="<html>
<head>
<title>Time Talky Thing</title>
</head>
<body>
<form target='iframe' action='/speak'>
<label for='string'>Text to Speak:</label><br>
<input type='text' name='text'><br>
<label for='delay_minutes'>Delay Minutes:</label><br>"
@index_html += "<select name='delay_minutes'>"
	(0..100).each do |i|
		@index_html += "<option>#{i}</option>"
	end
@index_html += "</select>"
		
@index_html+="<input type='submit' name='Submit'>
</form>
<iframe name='iframe'></iframe>
</body>
</html>"

#function to run when / is requested
def index (req, resp)
	resp['Content-Type'] = 'text/html'
	resp.body = @index_html
end

#function to run when /speak is requested
def speak (req, resp)
  #get data from the request
	text = req.query['text']
	delay = req.query['delay_minutes'].to_i * 60
	resp['Content-Type'] = 'text/plain'
	resp.body = "OK"
	speak_string( text, delay)
end

def speak_string( text, delay = 0 )
  #build a command 
  cmd = ""
  cmd += "sleep #{delay} && " if delay
  cmd += "espeak  -a150 -s150 -g7 -ven-us+f3  \"#{text}\"" if text
  #if there is a command, run it in a new thread
  unless cmd.empty?
    Thread.new do
      IO.popen(cmd)
    end
  end
end

# Initialize our WEBrick server
if $0 == __FILE__ 
	config = {:Port => 8000}
	server = WEBrick::HTTPServer.new(config)
	#what urls do we need to mount?
	server.mount_proc('/') do |req, resp| 
		index( req, resp )
	end
	server.mount_proc('/speak') do |req, resp| 
		speak( req, resp )
	end
	
	trap "INT" do 
		server.shutdown 
	end
	server.start
	
end