entities/user.js

   1 const db = require("../utils/database");
   2
   3 const UserEntity =
   4 {
   5     /*
   6      * Structure:
   7      *   _id: BSON id
   8      *   ** Strings, identification informations:
   9      *   email
  10      *   name
  11      *   initials : computed, Benjamin Auder --> ba ...etc
  12      *   loginToken: {
  13      *     value: string
  14      *     timestamp: datetime (validity)
  15      *     ip: address of requesting machine
  16      *   }
  17      *   sessionTokens (array): cookie identification
  18      */
  19
  20     getInitialsByPrefix: function(prefix, cb)
  21     {
  22         db.users.find(
  23             { initials: new RegExp("^" + prefix) },
  24             { initials: 1, _id: 0 },
  25             cb
  26         );
  27     },
  28
  29     insert: function(newUser, cb)
  30     {
  31         db.users.insert(Object.assign({},
  32             newUser,
  33             {
  34                 loginToken: { },
  35                 sessionTokens: [ ],
  36             }),
  37             cb
  38         );
  39     },
  40
  41     getByLoginToken: function(token, cb)
  42     {
  43         db.users.findOne(
  44             { "loginToken.value": token },
  45             cb
  46         );
  47     },
  48
  49     getBySessionToken: function(token, cb)
  50     {
  51         db.users.findOne(
  52             { sessionTokens: token},
  53             cb
  54         );
  55     },
  56
  57     getById: function(uid, cb)
  58     {
  59         db.users.findOne(
  60             { _id: uid },
  61             cb
  62         );
  63     },
  64
  65     getByEmail: function(email, cb)
  66     {
  67         db.users.findOne(
  68             { email: email },
  69             cb
  70         );
  71     },
  72
  73     getByInitials: function(initials, cb)
  74     {
  75         db.users.findOne(
  76             { initials: initials },
  77             cb
  78         );
  79     },
  80
  81     getUnlogged: function(cb)
  82     {
  83         var tsNow = new Date().getTime();
  84         // 86400000 = 24 hours in milliseconds
  85         var day = 86400000;
  86         db.users.find({}, (err,userArray) => {
  87             let unlogged = userArray.filter( u => {
  88                 return u.sessionTokens.length==0 && u._id.getTimestamp().getTime() + day < tsNow;
  89             });
  90             cb(err, unlogged);
  91         });
  92     },
  93
  94     getAll: function(cb)
  95     {
  96         db.users.find({}, cb);
  97     },
  98
  99     setLoginToken: function(token, uid, ip, cb)
 100     {
 101         db.users.update(
 102             { _id: uid },
 103             { $set: { loginToken: {
 104                     value: token,
 105                     timestamp: new Date().getTime(),
 106                     ip: ip,
 107                 }}
 108             },
 109             cb
 110         );
 111     },
 112
 113     setSessionToken: function(token, uid, cb)
 114     {
 115         // Also empty the login token to invalidate future attempts
 116         db.users.update(
 117             { _id: uid },
 118             {
 119                 $set: { loginToken: {} },
 120                 $push: { sessionTokens: {
 121                     $each: [token],
 122                     $slice: -7 //only allow 7 simultaneous connections per user (TODO?)
 123                 }}
 124             },
 125             cb
 126         );
 127     },
 128
 129     removeToken: function(uid, token, cb)
 130     {
 131         db.users.update(
 132             { _id: uid },
 133             { $pull: {sessionTokens: token} },
 134             cb
 135         );
 136     },
 137
 138     // TODO: later, allow account removal
 139     remove: function(uids)
 140     {
 141         db.users.remove({_id: uids});
 142     },
 143 }
 144
 145 module.exports = UserEntity;