contrib/shibuqam/examples/reloadgame.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 # Example that uses `shibuqam` to authenticate users and count the number of time they reload.
  16 module reloadgame is example
  17
  18 import popcorn
  19 import counter
  20 import shibuqam
  21
  22 redef class User
  23         # How many reload?
  24         var seen = 0
  25 end
  26
  27 # Ugly global class to track the knowledge.
  28 class DB
  29         # All known users
  30         var users = new HashMap[String, User]
  31 end
  32 # Ugly global instance to track the knowledge.
  33 fun db: DB do return once new DB
  34
  35 redef class HttpRequest
  36         # Like `user` but reuse an user if already seen
  37         var reuser: nullable User is lazy do
  38                 var user = self.user
  39                 if user == null then return null
  40
  41                 var saved = db.users.get_or_null(user.id)
  42                 if saved != null then return saved
  43
  44                 db.users[user.id] = user
  45                 return user
  46         end
  47 end
  48
  49 # The only handler of the example.
  50 class ReloadGame
  51         super Handler
  52
  53         redef fun get(http_request, response)
  54         do
  55                 var body = """
  56                         <!DOCTYPE html>
  57                         <head>
  58                         <meta charset="utf-8">
  59                         <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
  60                         <title>Nitcorn on Shibboleth/UQAM</title>
  61                         </head>
  62                         <body>
  63                         <div class="container">
  64                         <h1>Nitcorn on Shibboleth/UQAM</h1>
  65                 """
  66
  67                 var user = http_request.user
  68
  69                 if user != null then
  70                         user.seen += 1
  71
  72                         body += """
  73                         <p>Welcome {{{user.given_name}}}</p>
  74                         <ul>
  75                         <li>Full Name: {{{user.display_name}}}</li>
  76                         <li>E-Mail: {{{user.email}}}</li>
  77                         <li>Id: {{{user.id}}}</li>
  78                         <li>Score: {{{user.seen}}}</li>
  79                         </ul>
  80                         """
  81
  82                         #for k, v in http_request.header do body += "<li>{k}: {v}</li>"
  83                 else
  84                         # The login page, at the location the reverse proxy is expected to be configured
  85                         # to force an authentication.
  86                         var login = "/securep/login"
  87                         body += """
  88                         <p>Welcome annonymous, please <a href="{{{login}}}">log in</a>.</p>
  89                         """
  90                 end
  91
  92                 var score = new Counter[User]
  93                 for u in db.users.values do
  94                         score[u] = u.seen
  95                 end
  96
  97                 body += "<h2>Scoreboard</h2><ul>"
  98                 for u in score.sort.reversed do
  99                         body += "<li><img src='{u.avatar}'> {u.display_name}: {u.seen}</li>"
 100                 end
 101
 102
 103                 body += """</ul>
 104                         </div>
 105                         </body>
 106                         </html>
 107                 """
 108
 109                 response.html body
 110         end
 111 end
 112
 113 var app = new App
 114 app.use("/*", new ReloadGame)
 115 app.listen("localhost", 3000)