iOS/Tombo/Tombo/PasswordManager.m

   1 #import "PasswordManager.h"
   2 #import "SinglePasswordDialog.h"
   3
   4 @implementation PasswordManager {
   5     NSTimer *timer;
   6 }
   7
   8 @synthesize password = _password;
   9
  10 - (id)init {
  11     id obj = [super init];
  12     self.password = nil;
  13     return obj;
  14 }
  15
  16 - (BOOL)preparePassword {
  17     if (!self.password) {
  18         SinglePasswordDialog *dialog = [[SinglePasswordDialog alloc] initWithTitle:@"Password"
  19                                                                            message:@"Please input password"];
  20         NSString *pass = [dialog showAndWait];
  21         if (pass == nil) return NO;
  22
  23         self.password = pass;
  24     }
  25
  26     [self resetTimer];
  27     return YES;
  28 }
  29
  30 - (BOOL)preparePasswordConfirm {
  31     if (!self.password) {
  32         SinglePasswordDialog *dialog = [[SinglePasswordDialog alloc] initWithTitle:@"Password"
  33                                                                            message:@"Please input password"];
  34         NSString *pass1 = [dialog showAndWait];
  35         if (pass1 == nil) return NO;
  36
  37         dialog = [[SinglePasswordDialog alloc] initWithTitle:@"Confirm" message:@"Input password again"];
  38         NSString *pass2 = [dialog showAndWait];
  39         if (pass2 == nil) return NO;
  40
  41         if (![pass1 isEqualToString:pass2]) {
  42             UIAlertView *mismatch = [[UIAlertView alloc] initWithTitle:@"Warn"
  43                                                                message:@"Password mismatch."
  44                                                               delegate:nil cancelButtonTitle:@"OK"
  45                                                      otherButtonTitles:nil];
  46             [mismatch show];
  47             return NO;
  48         }
  49         self.password = pass1;
  50     }
  51
  52     [self resetTimer];
  53
  54     return YES;
  55 }
  56
  57 - (void)resetTimer {
  58     if (timer) [timer invalidate];
  59     timer = [NSTimer scheduledTimerWithTimeInterval:60
  60                                              target:self
  61                                            selector:@selector(fireTimer:)
  62                                            userInfo:nil
  63                                             repeats:NO];
  64 }
  65
  66 - (void)fireTimer:(NSTimer *)timer {
  67     self.password = nil;
  68 }
  69 @end