ctf-server

Challenges.scala

(1746B)

 package com.jcabrra
 package snippet
 
 import model._
 import comet._
 
 import net.liftweb._
 import util._, Helpers._
 import http._
 import js._
 import JsCmds._
 import SHtml._
 import net.liftmodules.extras._
 
 object Challenges extends SnippetHelper {
 
   def render: CssSel = User.currentUser map {
     user =>
       ".challenges" #> idMemoize { memo =>
         ".challenge" #> Challenge.findAll.filter(_.meetsPrerequisite(user)).map {
           challenge =>
             
             def process(guess: String): JsCmd =
               if (processResponse(guess, user, challenge))
                 LiftNotice.success("Congratulations! You Got The Key!") & memo.setHtml
               else
                 S.error("Wrong Key")
                     
             ".flag_name *" #> challenge.name &
               ".flag_hint *" #> challenge.hint &
               ".flag_key *" #> challenge.flags.filter(_.wasCapturedBy(user)).map (
                   flag => xml.Text(flag.answer.get.toString)) &
               ".flag_input *" #> {
                 if(challenge.fullySolvedBy(user)) xml.NodeSeq.Empty
                 else ajaxText("", false, process _, "placeholder" -> "guess")  
               }
         }
       }
   }
 
   /* Processes the user's challenge guess. Returns true if it was correct. */
   def processResponse(guess: String, user: User, challenge: Challenge): Boolean = 
     challenge.findFlagByGuess(guess, user).map {
       flag =>
         user.capturedFlags += flag
         user.save
         flag.capturedBy += user
         flag.save
         BroadcastServer ! BroadcastCorrectGuess(user, Util.ipAddress, flag, challenge)
         true
     } getOrElse {
       BroadcastServer ! BroadcastWrongGuess(user, Util.ipAddress, challenge)
       false
     }
   
 }