inbox: store user's inbox keys (#47)

Notesnook.API/Controllers/UsersController.cs

@@ -77,7 +77,8 @@ namespace Notesnook.API.Controllers
                 var keys = new UserKeys
                 {
                     AttachmentsKey = user.AttachmentsKey,
-                    MonographPasswordsKey = user.MonographPasswordsKey
+                    MonographPasswordsKey = user.MonographPasswordsKey,
+                    InboxKeys = user.InboxKeys
                 };
                 await UserService.SetUserKeysAsync(userId, keys);
                 return Ok();

Notesnook.API/Models/Responses/UserResponse.cs

@@ -15,6 +15,9 @@ namespace Notesnook.API.Models.Responses
         [JsonPropertyName("monographPasswordsKey")]
         public EncryptedData MonographPasswordsKey { get; set; }
 
+        [JsonPropertyName("inboxKeys")]
+        public InboxKeys InboxKeys { get; set; }
+
         [JsonPropertyName("subscription")]
         public ISubscription Subscription { get; set; }
 

Notesnook.API/Models/UserKeys.cs

@@ -23,5 +23,12 @@ namespace Notesnook.API.Models
   {
     public EncryptedData AttachmentsKey { get; set; }
     public EncryptedData MonographPasswordsKey { get; set; }
+    public InboxKeys InboxKeys { get; set; }
+  }
+
+  public class InboxKeys
+  {
+    public string Public { get; set; }
+    public EncryptedData Private { get; set; }
   }
 }

Notesnook.API/Models/UserSettings.cs

@@ -41,6 +41,7 @@ namespace Notesnook.API.Models
         public EncryptedData VaultKey { get; set; }
         public EncryptedData AttachmentsKey { get; set; }
         public EncryptedData MonographPasswordsKey { get; set; }
+        public InboxKeys InboxKeys { get; set; }
         public Limit StorageLimit { get; set; }
 
         [BsonId]

Notesnook.API/Services/UserService.cs

@@ -148,6 +148,17 @@ namespace Notesnook.API.Services
             {
                 userSettings.MonographPasswordsKey = keys.MonographPasswordsKey;
             }
+            if (keys.InboxKeys != null)
+            {
+                if (keys.InboxKeys.Public == null || keys.InboxKeys.Private == null)
+                {
+                    userSettings.InboxKeys = null;
+                }
+                else
+                {
+                    userSettings.InboxKeys = keys.InboxKeys;
+                }
+            }
 
             await Repositories.UsersSettings.UpdateAsync(userSettings.Id, userSettings);
         }