Setup custom URL to open conversations from another app.

Signed-off-by: Ivan Sein <ivan@nextcloud.com>

NextcloudTalk/AppDelegate.m

@@ -144,6 +144,21 @@
     // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
 }
 
+- (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options
+{
+    NSURLComponents *urlComponents = [NSURLComponents componentsWithURL:url resolvingAgainstBaseURL:NO];
+    NSString *scheme = urlComponents.scheme;
+    if ([scheme isEqualToString:@"nextcloudtalk"]) {
+        NSString *action = urlComponents.host;
+        if ([action isEqualToString:@"open-conversation"]) {
+            [[NCUserInterfaceController sharedInstance] presentChatForURL:urlComponents];
+            return YES;
+        }
+    }
+    
+    return NO;
+}
+
 - (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
 {
     if (_shouldLockInterfaceOrientation) {

NextcloudTalk/Info.plist

@@ -23,6 +23,19 @@
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
 	<string>$(MARKETING_VERSION)</string>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLName</key>
+			<string>com.nextcloud.Talk</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>nextcloudtalk</string>
+			</array>
+		</dict>
+	</array>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>LSApplicationQueriesSchemes</key>

NextcloudTalk/NCRoomsManager.m

@@ -34,7 +34,9 @@
 #import "NCExternalSignalingController.h"
 #import "NCSettingsController.h"
 #import "NCUserInterfaceController.h"
+#import "NCUtils.h"
 #import "NewRoomTableViewController.h"
+#import "NotificationCenterNotifications.h"
 #import "RoomCreation2TableViewController.h"
 
 NSString * const NCRoomsManagerDidJoinRoomNotification              = @"NCRoomsManagerDidJoinRoomNotification";
@@ -91,6 +93,7 @@ NSString * const NCRoomsManagerDidReceiveChatMessagesNotification   = @"ChatMess
         [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(joinOrCreateChat:) name:NCChatViewControllerReplyPrivatelyNotification object:nil];
         [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(joinChatOfForwardedMessage:) name:NCChatViewControllerForwardNotification object:nil];
         [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(joinOrCreateChat:) name:NCChatViewControllerTalkToUserNotification object:nil];
+        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(joinOrCreateChatWithURL:) name:NCURLWantsToOpenConversationNotification object:nil];
     }
     
     return self;
@@ -761,17 +764,14 @@ NSString * const NCRoomsManagerDidReceiveChatMessagesNotification   = @"ChatMess
     [self startChatWithRoomToken:pushNotification.roomToken];
 }
 
-- (void)joinOrCreateChat:(NSNotification *)notification
+- (void)joinOrCreateChatWithUser:(NSString *)userId usingAccountId:(NSString *)accountId
 {
-    NSString *actorId = [notification.userInfo objectForKey:@"actorId"];
-    
-    TalkAccount *activeAccount = [[NCDatabaseManager sharedInstance] activeAccount];
-    NSArray *accountRooms = [[NCRoomsManager sharedInstance] roomsForAccountId:activeAccount.accountId witRealm:nil];
+    NSArray *accountRooms = [[NCRoomsManager sharedInstance] roomsForAccountId:accountId witRealm:nil];
     
     for (NCRoom *room in accountRooms) {
         NSArray *participantsInRoom = [room.participants valueForKey:@"self"];
         
-        if (room.type == kNCRoomTypeOneToOne && [participantsInRoom containsObject:actorId]) {
+        if (room.type == kNCRoomTypeOneToOne && [participantsInRoom containsObject:userId]) {
             // Room already exists -> join the room
             [self startChatWithRoomToken:room.token];
             
@@ -780,18 +780,39 @@ NSString * const NCRoomsManagerDidReceiveChatMessagesNotification   = @"ChatMess
     }
     
     // Did not find a one-to-one room for this user -> create a new one
-    [[NCAPIController sharedInstance] createRoomForAccount:[[NCDatabaseManager sharedInstance] activeAccount] with:actorId
+    [[NCAPIController sharedInstance] createRoomForAccount:[[NCDatabaseManager sharedInstance] activeAccount] with:userId
                                                     ofType:kNCRoomTypeOneToOne
                                                    andName:nil
                     withCompletionBlock:^(NSString *token, NSError *error) {
                         if (!error) {
                             [self startChatWithRoomToken:token];
-                             NSLog(@"Room %@ with %@ created", token, actorId);
+                             NSLog(@"Room %@ with %@ created", token, userId);
                          } else {
-                             NSLog(@"Failed creating a room with %@", actorId);
+                             NSLog(@"Failed creating a room with %@", userId);
                          }
                     }];
+}
+
+- (void)joinOrCreateChat:(NSNotification *)notification
+{
+    NSString *actorId = [notification.userInfo objectForKey:@"actorId"];
+    TalkAccount *activeAccount = [[NCDatabaseManager sharedInstance] activeAccount];
+    [self joinOrCreateChatWithUser:actorId usingAccountId:activeAccount.accountId];
+}
+
+- (void)joinOrCreateChatWithURL:(NSNotification *)notification
+{
+    NSURLComponents *urlComponents = [notification.userInfo objectForKey:@"url"];
+    NSArray *queryItems = urlComponents.queryItems;
+    NSString *server = [NCUtils valueForKey:@"server" fromQueryItems:queryItems];
+    NSString *user = [NCUtils valueForKey:@"user" fromQueryItems:queryItems];
+    NSString *withUser = [NCUtils valueForKey:@"withUser" fromQueryItems:queryItems];
+    NSString *accountId = [[NCDatabaseManager sharedInstance] accountIdForUser:user inServer:server];
+    TalkAccount *account = [[NCDatabaseManager sharedInstance] talkAccountForAccountId:accountId];
     
+    [self checkForAccountChange:accountId];
+    
+    [self joinOrCreateChatWithUser:withUser usingAccountId:account.accountId];
 }
 
 - (void)joinChatOfForwardedMessage:(NSNotification *)notification

NextcloudTalk/NCUserInterfaceController.h

@@ -44,5 +44,6 @@
 - (void)presentChatViewController:(NCChatViewController *)chatViewController;
 - (void)presentCallViewController:(CallViewController *)callViewController;
 - (void)presentCallKitCallInRoom:(NSString *)token withVideoEnabled:(BOOL)video;
+- (void)presentChatForURL:(NSURLComponents *)urlComponents;
 
 @end

NextcloudTalk/NCUserInterfaceController.m

@@ -33,6 +33,7 @@
 #import "NCDatabaseManager.h"
 #import "NCRoomsManager.h"
 #import "NCSettingsController.h"
+#import "NCUtils.h"
 #import "NotificationCenterNotifications.h"
 
 @interface NCUserInterfaceController () <LoginViewControllerDelegate, AuthenticationViewControllerDelegate>
@@ -42,6 +43,7 @@
     NCPushNotification *_pendingPushNotification;
     NSMutableDictionary *_pendingCallKitCall;
     NSDictionary *_pendingLocalNotification;
+    NSURLComponents *_pendingURL;
     BOOL _waitingForServerCapabilities;
 }
 
@@ -307,6 +309,28 @@
     [[NCRoomsManager sharedInstance] joinCallWithCallToken:roomToken withVideo:video];
 }
 
+- (void)presentChatForURL:(NSURLComponents *)urlComponents
+{
+    if ([NCConnectionController sharedInstance].appState != kAppStateReady) {
+        _waitingForServerCapabilities = YES;
+        _pendingURL = urlComponents;
+        return;
+    }
+    
+    NSArray *queryItems = urlComponents.queryItems;
+    NSString *server = [NCUtils valueForKey:@"server" fromQueryItems:queryItems];
+    NSString *user = [NCUtils valueForKey:@"user" fromQueryItems:queryItems];
+    
+    NSString *accountId = [[NCDatabaseManager sharedInstance] accountIdForUser:user inServer:server];
+    TalkAccount *account = [[NCDatabaseManager sharedInstance] talkAccountForAccountId:accountId];
+    if (account) {
+        NSDictionary *userInfo = [NSDictionary dictionaryWithObject:urlComponents forKey:@"url"];
+        [[NSNotificationCenter defaultCenter] postNotificationName:NCURLWantsToOpenConversationNotification
+                                                            object:self
+                                                          userInfo:userInfo];
+    }
+}
+
 #pragma mark - Notifications
 
 - (void)appStateHasChanged:(NSNotification *)notification
@@ -322,6 +346,8 @@
             }
         } else if (_pendingCallKitCall) {
             [self startCallKitCall:_pendingCallKitCall];
+        } else if (_pendingURL) {
+            [self presentChatForURL:_pendingURL];
         }
     }
 }

NextcloudTalk/NCUtils.h

@@ -51,6 +51,8 @@ NS_ASSUME_NONNULL_BEGIN
 
 + (BOOL)isValidIndexPath:(NSIndexPath *)indexPath forTableView:(UITableView *)tableView;
 
++ (NSString *)valueForKey:(NSString *)key fromQueryItems:(NSArray *)queryItems;
+
 @end
 
 NS_ASSUME_NONNULL_END

NextcloudTalk/NCUtils.m

@@ -220,4 +220,12 @@ static NSString *const nextcloudScheme = @"nextcloud:";
     return indexPath.section < tableView.numberOfSections && indexPath.row < [tableView numberOfRowsInSection:indexPath.section];
 }
 
+
++ (NSString *)valueForKey:(NSString *)key fromQueryItems:(NSArray *)queryItems
+{
+    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"name=%@", key];
+    NSURLQueryItem *queryItem = [[queryItems filteredArrayUsingPredicate:predicate] firstObject];
+    return queryItem.value;
+}
+
 @end

NextcloudTalk/NotificationCenterNotifications.h

@@ -29,5 +29,6 @@ extern NSString * const NCOutdatedTalkVersionNotification;
 extern NSString * const NCServerCapabilitiesUpdatedNotification;
 extern NSString * const NCUserProfileImageUpdatedNotification;
 extern NSString * const NCTokenRevokedResponseReceivedNotification;
+extern NSString * const NCURLWantsToOpenConversationNotification;
 
 NS_ASSUME_NONNULL_END

NextcloudTalk/NotificationCenterNotifications.m

@@ -27,4 +27,5 @@ NSString * const NCOutdatedTalkVersionNotification = @"NCOutdatedTalkVersionNoti
 NSString * const NCServerCapabilitiesUpdatedNotification = @"NCServerCapabilitiesUpdatedNotification";
 NSString * const NCUserProfileImageUpdatedNotification = @"NCUserProfileImageUpdatedNotification";
 NSString * const NCTokenRevokedResponseReceivedNotification = @"NCTokenRevokedResponseReceivedNotification";
+NSString * const NCURLWantsToOpenConversationNotification = @"NCURLWantsToOpenConversationNotification";