onedrive controller: implement credentials sharing

Sources/VLCConstants.h

@@ -87,6 +87,7 @@
 
 #define kVLCStoredServerList @"kVLCStoredServerList"
 #define kVLCStoreDropboxCredentials @"kVLCStoreDropboxCredentials"
+#define kVLCStoreOneDriveCredentials @"kVLCStoreOneDriveCredentials"
 
 #define kVLCUserActivityPlaying @"org.videolan.vlc-ios.playing"
 #define kVLCUserActivityLibrarySelection @"org.videolan.vlc-ios.libraryselection"

Sources/VLCOneDriveController.m

@@ -19,6 +19,7 @@
 
 /* include private API headers */
 #import "LiveApiHelper.h"
+#import "LiveAuthStorage.h"
 
 @interface VLCOneDriveController () <LiveAuthDelegate, VLCOneDriveObjectDelegate, VLCOneDriveObjectDownloadDelegate>
 {
@@ -60,6 +61,8 @@
     if (!self)
         return self;
 
+    [self restoreFromSharedCredentials];
+
     _liveScopes = @[@"wl.signin",@"wl.offline_access",@"wl.skydrive"];
 
     _liveClient = [[LiveConnectClient alloc] initWithClientId:kVLCOneDriveClientID
@@ -128,6 +131,8 @@
             [self.delegate performSelector:@selector(sessionWasUpdated)];
     }
     [[NSNotificationCenter defaultCenter] postNotificationName:VLCOneDriveControllerSessionUpdated object:self];
+
+    [self shareCredentials];
 }
 
 - (void)authFailed:(NSError *)error userState:(id)userState
@@ -144,6 +149,32 @@
     [[NSNotificationCenter defaultCenter] postNotificationName:VLCOneDriveControllerSessionUpdated object:self];
 }
 
+- (void)shareCredentials
+{
+    /* share our credentials */
+    LiveAuthStorage *authStorage = [[LiveAuthStorage alloc] initWithClientId:kVLCOneDriveClientID];
+    NSString *credentials = [authStorage refreshToken];
+    if (credentials == nil)
+        return;
+
+    NSUbiquitousKeyValueStore *ubiquitousStore = [NSUbiquitousKeyValueStore defaultStore];
+    [ubiquitousStore setString:credentials forKey:kVLCStoreOneDriveCredentials];
+    [ubiquitousStore synchronize];
+}
+
+- (BOOL)restoreFromSharedCredentials
+{
+    LiveAuthStorage *authStorage = [[LiveAuthStorage alloc] initWithClientId:kVLCOneDriveClientID];
+    NSUbiquitousKeyValueStore *ubiquitousStore = [NSUbiquitousKeyValueStore defaultStore];
+    [ubiquitousStore synchronize];
+    NSString *credentials = [ubiquitousStore stringForKey:kVLCStoreOneDriveCredentials];
+    if (!credentials)
+        return NO;
+
+    [authStorage setRefreshToken:credentials];
+    return YES;
+}
+
 - (void)liveOperationSucceeded:(LiveDownloadOperation *)operation
 {
     APLog(@"ODC: liveOperationSucceeded (%@)", operation.userState);