sen-material: progs/app3.scala@3d585e603927 (annotated)

93 82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	1	object Application extends Controller {
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	2
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	3	//SHA-1, SHA-256
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	4	def mk_hash(s: String) : String = {
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	5	val hash_fun = MessageDigest.getInstance("SHA-1")
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	6	hash_fun.digest(s.getBytes).map{ "%02x".format(_) }.mkString
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	7	}
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	8
98 3d585e603927 updated Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 93 diff changeset	9	def gt_cookie(c: Cookie) : Int = c.value.split("/") match {
3d585e603927 updated Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 93 diff changeset	10	case Array(s, h)
3d585e603927 updated Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 93 diff changeset	11	if (s.forall(_.isDigit) && mk_hash(s) == h) => s.toInt
3d585e603927 updated Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 93 diff changeset	12	case _ => 0
3d585e603927 updated Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 93 diff changeset	13	}
93 82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	14
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	15	def mk_cookie(i: Int) : Cookie = {
98 3d585e603927 updated Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 93 diff changeset	16	val hash = mk_hash(i.toString)
3d585e603927 updated Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 93 diff changeset	17	Cookie("visits", s"$i/$hash")
93 82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	18	}
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	19
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	20	def index = Action { request => ... }
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	21	}
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	22
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	23
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	24
82ac034dcc9d brought order into the repository Christian Urban <christian dot urban at kcl dot ac dot uk> parents: diff changeset	25

author	Christian Urban <christian dot urban at kcl dot ac dot uk>
	Mon, 23 Sep 2013 22:23:55 +0100
changeset 98	3d585e603927
parent 93	82ac034dcc9d
permissions	-rw-r--r--