Pileus Git - ~andy/freeotp/blob - src/org/fedorahosted/freeotp/TokenStore.java

   1 package org.fedorahosted.freeotp;
   2
   3 import java.util.LinkedList;
   4 import java.util.List;
   5
   6 import org.fedorahosted.freeotp.Token.TokenUriInvalidException;
   7 import org.json.JSONArray;
   8 import org.json.JSONException;
   9
  10 import android.content.Context;
  11 import android.content.SharedPreferences;
  12
  13 public class TokenStore {
  14         private static final String NAME = "tokens";
  15         private static final String ORDER = "tokenOrder";
  16         private SharedPreferences prefs;
  17
  18         private List<String> getTokenOrder() {
  19                 try {
  20                         JSONArray array = new JSONArray(prefs.getString(ORDER, null));
  21                         List<String> out = new LinkedList<String>();
  22                         for (int i = 0; i < array.length(); i++)
  23                                 out.add(array.getString(i));
  24                         return out;
  25                 } catch (JSONException e) {
  26                 } catch (NullPointerException e) {
  27                 }
  28
  29                 return new LinkedList<String>();
  30         }
  31
  32         private SharedPreferences.Editor setTokenOrder(List<String> order) {
  33                 JSONArray array = new JSONArray();
  34                 for (String key : order)
  35                         array.put(key);
  36
  37                 return prefs.edit().putString(ORDER, array.toString());
  38         }
  39
  40         public TokenStore(Context ctx) {
  41                 prefs = ctx.getApplicationContext()
  42                                    .getSharedPreferences(NAME, Context.MODE_PRIVATE);
  43         }
  44
  45         public void add(Token token) {
  46                 String key = token.getID();
  47
  48                 if (prefs.contains(key))
  49                         return;
  50
  51                 List<String> order = getTokenOrder();
  52                 order.add(0, key);
  53                 setTokenOrder(order).putString(key, token.toString()).apply();
  54         }
  55
  56         public void del(int index) {
  57                 List<String> order = getTokenOrder();
  58                 String key = order.remove(index);
  59                 setTokenOrder(order).remove(key).apply();
  60         }
  61
  62         public void save(Token token) {
  63                 prefs.edit().putString(token.getID(), token.toString()).apply();
  64         }
  65
  66         public Token get(int index) {
  67                 try {
  68                         return new Token(prefs.getString(getTokenOrder().get(index), null));
  69                 } catch (TokenUriInvalidException e) {
  70                         e.printStackTrace();
  71                 } catch (NullPointerException e) {
  72                         e.printStackTrace();
  73                 }
  74
  75                 return null;
  76         }
  77
  78         public int getTokenCount() {
  79                 return getTokenOrder().size();
  80         }
  81
  82         public void move(int fromIndex, int toIndex) {
  83                 List<String> order = getTokenOrder();
  84                 if (fromIndex < 0 || fromIndex > order.size())
  85                         return;
  86                 if (toIndex < 0 || toIndex > order.size())
  87                         return;
  88
  89                 order.add(toIndex, order.remove(fromIndex));
  90                 setTokenOrder(order).apply();
  91         }
  92 }