rscottm · December 19, 2010 07:10
diff --git a/script_server.rb b/script_server.rb
 #######################################################
 #
 # script_server.rb (by Scott Moyer)
 # 
 # This is an experiment in creating a web server on 
 # an android handset for the purpose of editing scripts.
 #
 #######################################################

 # Need to require date separately. You get a stack overflow 
 #   if it happens inside of webrick
 require 'date'
 require 'webrick'

 include WEBrick

 java_import "android.app.Activity"
 java_import "android.content.Context"
 java_import "android.content.Intent"
 java_import "android.app.Notification"
 java_import "android.app.PendingIntent"
 java_import "java.lang.System"
 java_import "android.R"

 SERVER_PORT = 8005

 #####################################################
 #
 # Used to add a notification about the ip:port to
 # find the server
 #

 def notify(title, text, ticker, icon, note_id=1)
  notification = Notification.new(icon, ticker, System.currentTimeMillis)
  notification.setLatestEventInfo($activity.getApplicationContext, title, text, 
    PendingIntent.getActivity($activity, 0, Intent.new($activity, $activity.java_class), 0))
  $activity.getSystemService(Context::NOTIFICATION_SERVICE).notify(note_id, notification)
 end

 #####################################################
 #
 # HTML helper methods
 #

 def edit_form(name="", script="")
  "<form action=\"/#{name == 'untitled.rb' ? 'create' : name}\" method='post' style='display:inline'>
    Name: <input name='name' value='#{name}' />
    <input type='submit' value='Save' />
    <a href='/'>Cancel</a>
    <br/>
    <textarea id='script' name='script' rows='25' cols='100'>#{script.gsub('<', '&l' + 't;').gsub('>', '&g' + 't;')}</textarea>
    </form>
    <br/>
  "
 end

 def wrap_html(body)
  "<html><body>#{body}</body></html>"
 end

 #####################################################
 #
 # Webrick Servlet that allows displaying an edit 
 # form (through GET) and receiving updates (through POST)
 #

 class ScriptServlet < HTTPServlet::AbstractServlet
  def do_GET(req, resp)
    resp.content_type = "text/html"
    name = @options[0] || "untitled.rb"
    script = File.exists?(name) ? IO.read(name) : ""
    resp.body = wrap_html(edit_form(name, script))
  end

  def do_POST(req, resp)
    File.open(req.query['name'], "w") {|file| file.write req.query['script']}
    resp.set_redirect(HTTPStatus::TemporaryRedirect, '/')
  end
 end

 #####################################################
 #
 # Get the ip address and setup the server
 #

 ip = $activity.getSystemService(Activity::WIFI_SERVICE).getConnectionInfo.getIpAddress
 if ip != 0
  ip = [0, 8, 16, 24].map{|n| ((ip >> n) & 0xff).to_s}.join(".")

  notify("Script Server Running", 
    "Connect to #{ip}:#{SERVER_PORT}", 
    "Script server running on #{ip}:#{SERVER_PORT}", 
    R::drawable::stat_sys_upload)

  $server = HTTPServer.new(:Port => SERVER_PORT, :DocumentRoot => "/sdcard/jruby")

  $server.mount_proc('/') do |req, resp| 
    resp.content_type = "text/html"
    body = Dir.glob("*.rb").sort.map do |i|
      $server.mount("/#{i}", ScriptServlet, i)
      "<a href='/#{i}'>#{i}</a><br/>"
    end.join
    other =[
      "<a href='/create'>Create Script...</a><br/>",
      "<a href='/stop'>Stop Server</a><br/>",
    ].join
    resp.body = wrap_html("<h2>Scripts</h2>#{body}<h2>Other Actions</h2>#{other}")
  end

  $server.mount("/create", ScriptServlet, nil)

  $server.mount_proc('/stop') do |req, resp| 
    $server.shutdown
    $activity.getSystemService(Context::NOTIFICATION_SERVICE).cancelAll
  end

  $server.start
 else
  puts "Not connected to wifi"
 end
	#######################################################
	#
	# script_server.rb (by Scott Moyer)
	#
	# This is an experiment in creating a web server on
	# an android handset for the purpose of editing scripts.
	#
	#######################################################

	# Need to require date separately. You get a stack overflow
	# if it happens inside of webrick
	require 'date'
	require 'webrick'

	include WEBrick

	java_import "android.app.Activity"
	java_import "android.content.Context"
	java_import "android.content.Intent"
	java_import "android.app.Notification"
	java_import "android.app.PendingIntent"
	java_import "java.lang.System"
	java_import "android.R"

	SERVER_PORT = 8005

	#####################################################
	#
	# Used to add a notification about the ip:port to
	# find the server
	#

	def notify(title, text, ticker, icon, note_id=1)
	notification = Notification.new(icon, ticker, System.currentTimeMillis)
	notification.setLatestEventInfo($activity.getApplicationContext, title, text,
	PendingIntent.getActivity($activity, 0, Intent.new($activity, $activity.java_class), 0))
	$activity.getSystemService(Context::NOTIFICATION_SERVICE).notify(note_id, notification)
	end

	#####################################################
	#
	# HTML helper methods
	#

	def edit_form(name="", script="")
	"<form action=\"/#{name == 'untitled.rb' ? 'create' : name}\" method='post' style='display:inline'>
	Name: <input name='name' value='#{name}' />
	<input type='submit' value='Save' />
	<a href='/'>Cancel</a>
	<br/>
	<textarea id='script' name='script' rows='25' cols='100'>#{script.gsub('<', '&l' + 't;').gsub('>', '&g' + 't;')}</textarea>
	</form>
	<br/>
	"
	end

	def wrap_html(body)
	"<html><body>#{body}</body></html>"
	end

	#####################################################
	#
	# Webrick Servlet that allows displaying an edit
	# form (through GET) and receiving updates (through POST)
	#

	class ScriptServlet < HTTPServlet::AbstractServlet
	def do_GET(req, resp)
	resp.content_type = "text/html"
	name = @options[0] \|\| "untitled.rb"
	script = File.exists?(name) ? IO.read(name) : ""
	resp.body = wrap_html(edit_form(name, script))
	end

	def do_POST(req, resp)
	File.open(req.query['name'], "w") {\|file\| file.write req.query['script']}
	resp.set_redirect(HTTPStatus::TemporaryRedirect, '/')
	end
	end

	#####################################################
	#
	# Get the ip address and setup the server
	#

	ip = $activity.getSystemService(Activity::WIFI_SERVICE).getConnectionInfo.getIpAddress
	if ip != 0
	ip = [0, 8, 16, 24].map{\|n\| ((ip >> n) & 0xff).to_s}.join(".")

	notify("Script Server Running",
	"Connect to #{ip}:#{SERVER_PORT}",
	"Script server running on #{ip}:#{SERVER_PORT}",
	R::drawable::stat_sys_upload)

	$server = HTTPServer.new(:Port => SERVER_PORT, :DocumentRoot => "/sdcard/jruby")

	$server.mount_proc('/') do \|req, resp\|
	resp.content_type = "text/html"
	body = Dir.glob("*.rb").sort.map do \|i\|
	$server.mount("/#{i}", ScriptServlet, i)
	"<a href='/#{i}'>#{i}</a><br/>"
	end.join
	other =[
	"<a href='/create'>Create Script...</a><br/>",
	"<a href='/stop'>Stop Server</a><br/>",
	].join
	resp.body = wrap_html("<h2>Scripts</h2>#{body}<h2>Other Actions</h2>#{other}")
	end

	$server.mount("/create", ScriptServlet, nil)

	$server.mount_proc('/stop') do \|req, resp\|
	$server.shutdown
	$activity.getSystemService(Context::NOTIFICATION_SERVICE).cancelAll
	end

	$server.start
	else
	puts "Not connected to wifi"
	end
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