add authorization via verify_credentials

Classes/AppDelegate.h

@@ -8,17 +8,20 @@
 
 #import "DRMapViewController.h"
 
-@class MySelf;
+@class MySelf, SettingViewController;
 
 @interface AppDelegate : NSObject <UIApplicationDelegate>
 {
    UIWindow *window;
    DRMapViewController *view_controller;
    MySelf *my_self;
+   SettingViewController *setting_view_controller;
 }
 
 @property (nonatomic, assign) MySelf *my_self;
 @property (nonatomic, retain) IBOutlet UIWindow *window;
 @property (nonatomic, retain) IBOutlet UIViewController *view_controller;
 
+- (void) authorized;
+
 @end

Classes/AppDelegate.m

@@ -9,18 +9,25 @@
 #import "AppDelegate.h"
 #import "MySelf.h"
 #import "DragonRador.h"
+#import "SettingViewController.h"
+
+@interface AppDelegate (Private)
+- (void) showAuthorization;
+@end // AppDelegate
 
 @implementation AppDelegate
 
 @synthesize window, view_controller, my_self;
 
 - (void)applicationDidFinishLaunching:(UIApplication *)application
 {
-   // create my_self from scratch or from persistent storage.
-   my_self = [[MySelf alloc] initWithName:[[NSUserDefaults standardUserDefaults] stringForKey:DR_TWITTER_USER] password:[[NSUserDefaults standardUserDefaults] stringForKey:DR_TWITTER_PASSWORD]];
-
-   view_controller = [[DRMapViewController alloc] initWithNibName:@"DRMapView" bundle:nil];
-   [window addSubview:view_controller.view];
+   if (! [[NSUserDefaults standardUserDefaults] boolForKey:DR_TWITTER_AUTHORIZED]) {
+      my_self = nil;
+      // authorize first
+      [self showAuthorization];
+   } else {
+      [self authorized];
+   }
    [window makeKeyAndVisible];
 }
 
@@ -32,4 +39,34 @@ - (void)dealloc
    [super dealloc];
 }
 
-@end
+- (void) applicationWillTerminate:(UIApplication *)application
+{
+   [[NSUserDefaults standardUserDefaults] synchronize];
+}
+
+- (void) authorized
+{
+   [setting_view_controller release];
+
+   // create my_self from scratch or from persistent storage.
+   my_self = [[MySelf alloc] initWithName:[[NSUserDefaults standardUserDefaults] stringForKey:DR_TWITTER_USER] password:[[NSUserDefaults standardUserDefaults] stringForKey:DR_TWITTER_PASSWORD]];
+
+   view_controller = [[DRMapViewController alloc] initWithNibName:@"DRMapView" bundle:nil];
+   [window addSubview:view_controller.view];
+}
+
+@end // AppDelegate
+
+@implementation AppDelegate (Private)
+
+- (void) showAuthorization
+{
+   setting_view_controller = [[SettingViewController alloc] initWithNibName:nil bundle:nil];
+   //UINavigationController *nc = [[UINavigationController alloc] initWithRootViewController:svc];
+   //[self presentModalViewController:nc animated:YES];
+   //[nc release];
+   [window addSubview:setting_view_controller.view];
+   //[svc release];
+}
+
+@end // AppDelegate (Private)

Classes/DragonRador.h

@@ -2,6 +2,7 @@
 #define DR_FRIENDS @"friends"
 #define DR_TWITTER_USER @"user_name"
 #define DR_TWITTER_PASSWORD @"password"
+#define DR_TWITTER_AUTHORIZED @"authorized"
 
 //#define LOCATION_SERVER @"http://dragon-rador.appspot.com"
 #define LOCATION_SERVER @"http://192.168.1.101:8080"

Classes/FriendsPickViewController.m

@@ -86,7 +86,6 @@ - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath
    }
 
    [[NSUserDefaults standardUserDefaults] setObject:my_self.friends forKey:DR_FRIENDS];
-   [[NSUserDefaults standardUserDefaults] synchronize];
 }
 
 #pragma mark others

Classes/MySelf.h

@@ -10,17 +10,17 @@
 
 @class Friend, CLLocation;
 
-@interface MySelf : NSObject <NSCoding>
+@interface MySelf : NSObject
 {
    NSString *twitter_user_name;
    NSString *twitter_password;
 
-   NSMutableArray *friends;  // collection of Friend
+   NSMutableSet *friends;  // collection of Friend
    BOOL visible;
 }
 
 @property (readonly) BOOL visible;
-@property (nonatomic,readonly) NSMutableArray *friends;
+@property (nonatomic,readonly) NSMutableSet *friends;
 
 - (id) initWithName:(NSString *)name password:(NSString *)pw;
 

Classes/MySelf.m

@@ -12,42 +12,28 @@
 #import "DragonRador.h"
 
 @interface MySelf (Private)
+- (void) loadFriends;
 @end // MySelf (Private)
 
 @implementation MySelf
 @synthesize visible, friends;
 
+#define FRIENDS_FILE @"friends.dat"
+
 - (id) initWithName:(NSString *)name password:(NSString *)pw
 {
    if (self = [super init]) {
       twitter_user_name = [name retain];
       twitter_password = [pw retain];
 
-      NSArray *saved_friends = [[NSUserDefaults standardUserDefaults] objectForKey:DR_FRIENDS];
-      friends = saved_friends ? [NSMutableArray arrayWithArray:saved_friends] : [NSMutableArray array];
-      [friends retain];
+      [self loadFriends];
       NSLog(@"friends are %@", friends);
 
       visible = YES; // visible by default
    }
    return self;
 }
 
-- (id) initWithCoder:(NSCoder *)decoder
-{
-   twitter_user_name = [[decoder decodeObjectForKey:@"twitter_user_name"] retain];
-   twitter_password = [[decoder decodeObjectForKey:@"twitter_password"] retain];
-   friends = [[decoder decodeObjectForKey:@"friends"] retain];
-   visible = YES; // visible by default
-   return self;
-}
-
-- (void)encodeWithCoder:(NSCoder *)encoder
-{
-   NSAssert(NO, @"not implemented yet");
-   // TODO
-}
-
 - (void) dealloc
 {
    [friends release];
@@ -102,3 +88,23 @@ - (NSArray *) twitterFriends
 }
 
 @end
+
+@implementation MySelf (Private)
+
+- (void) loadFriends
+{
+   /*
+   NSFileManager *fm = [NSFileManager defaultManager];
+   if ([fm fileExistsAtPath:FRIENDS_FILE]) {
+      NSMutableData *data = [NSMutableData dataWithContentsOfFile:path];
+      NSKeyedUnarchiver *decoder = [[NSKeyedUnarchiver alloc] initForReadingWithData:data];
+      self.friends = [decoder decodeObjectForKey:@"friends"];
+      [decoder finishDecoding];
+      [decoder release];
+   } else {
+      self.friends = [NSMutableSet set];
+   }
+   */
+}
+
+@end

Classes/SettingViewController.m

@@ -8,6 +8,11 @@
 
 #import "SettingViewController.h"
 #import "DragonRador.h"
+#import "AppDelegate.h"
+
+@interface SettingViewController (Private)
+- (BOOL) authorize; // authorize via Twitter verify_credentials
+@end // SettingViewController (Private)
 
 @implementation SettingViewController
 @synthesize table_view;
@@ -29,9 +34,9 @@ - (void)viewDidLoad
    [super viewDidLoad];
    self.title = @"Setting";
 
-   UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(done)];
-   self.navigationItem.leftBarButtonItem = backButton;
-   [backButton release];
+   //UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(done)];
+   //self.navigationItem.leftBarButtonItem = backButton;
+   //[backButton release];
 
    userField     = [[UITextField alloc] initWithFrame:CGRectMake(100, 11, 128, 22)];
    NSString *user_name = [[NSUserDefaults standardUserDefaults] stringForKey:DR_TWITTER_USER];
@@ -75,7 +80,10 @@ - (void) dealloc
 
 - (void) done
 {
-   [self dismissModalViewControllerAnimated:YES];  
+   // [self dismissModalViewControllerAnimated:YES];  
+   AppDelegate *app = [UIApplication sharedApplication].delegate;
+   [self.view removeFromSuperview];
+   [app authorized];
 }
 
 #pragma mark Table view methods
@@ -212,12 +220,39 @@ - (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInte
    return nil;
 }
 
+@end // SettingViewController
+
+@implementation SettingViewController (Private)
+
 - (void) commitUserInfo
 {
    NSLog(@"commitUserInfo");
    [[NSUserDefaults standardUserDefaults] setObject:userField.text forKey:DR_TWITTER_USER];
    [[NSUserDefaults standardUserDefaults] setObject:passwordField.text forKey:DR_TWITTER_PASSWORD];
-   [[NSUserDefaults standardUserDefaults] synchronize];
+
+   if ([self authorize]) {
+      [self done];
+   } else {
+      // Alert
+   }
+}
+
+- (BOOL) authorize
+{
+   // start activity indicator
+   // call Twitter verify_credentials API
+   NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://%@:%@@twitter.com/account/verify_credentials.xml", userField.text, passwordField.text]];
+   NSURLRequest *req = [NSURLRequest requestWithURL:url];
+   NSHTTPURLResponse *res = nil;
+   NSError *err = nil;
+   NSData *data = [NSURLConnection sendSynchronousRequest:req returningResponse:&res error:&err];
+   if (err) {
+      // show alert
+      NSLog(@"error: %@", [err localizedDescription]);
+      return NO;
+   }
+
+   return res.statusCode == 200;
 }
 
-@end
+@end // SettingViewController (Private)