monograph: fix 404 errors due to slug restriction on new monographs

* inbox: add health endpoint && docs

* inbox: update post endpoint uri

* inbox: update docs & dockerfile

---------

Co-authored-by: Abdullah Atta <abdullahatta@streetwriters.co>

.github/workflows/publish.yml

@@ -36,6 +36,10 @@ jobs:
           - image: streetwriters/sse
             file: ./Streetwriters.Messenger/Dockerfile
             context: .
+
+          - image: streetwriters/notesnook-inbox
+            file: ./Notesnook.Inbox.API/Dockerfile
+            context: ./Notesnook.Inbox.API/
     permissions:
       packages: write
       contents: read

Notesnook.API/Authorization/InboxApiKeyAuthenticationHandler.cs

@@ -78,7 +78,7 @@ namespace Notesnook.API.Authorization
                     return AuthenticateResult.Fail("API key has expired");
                 }
 
-                inboxApiKey.LastUsedAt = DateTimeOffset.UtcNow.ToUnixTimeSeconds();
+                inboxApiKey.LastUsedAt = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
                 await _inboxApiKeyRepository.UpsertAsync(inboxApiKey, k => k.Key == apiKey);
 
                 var claims = new[]

Notesnook.API/Controllers/InboxController.cs

@@ -151,34 +151,18 @@ namespace Notesnook.API.Controllers
             var userId = User.GetUserId();
             try
             {
-                if (request.Key.Algorithm != Algorithms.XSAL_X25519_7)
+                if (string.IsNullOrWhiteSpace(request.Cipher))
                 {
-                    return BadRequest(new { error = $"Only {Algorithms.XSAL_X25519_7} is supported for inbox item password." });
+                    return BadRequest(new { error = "Inbox item is required." });
                 }
-                if (string.IsNullOrWhiteSpace(request.Key.Cipher))
+                if (string.IsNullOrWhiteSpace(request.Algorithm))
                 {
-                    return BadRequest(new { error = "Inbox item password cipher is required." });
-                }
-                if (request.Key.Length <= 0)
-                {
-                    return BadRequest(new { error = "Valid inbox item password length is required." });
-                }
-                if (request.Algorithm != Algorithms.Default)
-                {
-                    return BadRequest(new { error = $"Only {Algorithms.Default} is supported for inbox item." });
+                    return BadRequest(new { error = "Inbox item algorithm is required." });
                 }
                 if (request.Version <= 0)
                 {
                     return BadRequest(new { error = "Valid inbox item version is required." });
                 }
-                if (string.IsNullOrWhiteSpace(request.Cipher) || string.IsNullOrWhiteSpace(request.IV))
-                {
-                    return BadRequest(new { error = "Inbox item cipher and iv is required." });
-                }
-                if (request.Length <= 0)
-                {
-                    return BadRequest(new { error = "Valid inbox item length is required." });
-                }
 
                 request.UserId = userId;
                 request.ItemId = ObjectId.GenerateNewId().ToString();

Notesnook.API/Controllers/MonographsController.cs

@@ -18,27 +18,27 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 using System;
-using System.Collections.Generic;
 using System.Linq;
 using System.Security.Claims;
 using System.Text.Json;
 using System.Threading.Tasks;
 using AngleSharp;
-using AngleSharp.Dom;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
 using MongoDB.Bson;
 using MongoDB.Driver;
-using Notesnook.API.Authorization;
+using NanoidDotNet;
+using Notesnook.API.Extensions;
 using Notesnook.API.Models;
 using Notesnook.API.Services;
 using Streetwriters.Common;
+using Streetwriters.Common.Accessors;
+using Streetwriters.Common.Enums;
 using Streetwriters.Common.Helpers;
 using Streetwriters.Common.Interfaces;
 using Streetwriters.Common.Messages;
-using Streetwriters.Data.Interfaces;
 using Streetwriters.Data.Repositories;
 
 namespace Notesnook.API.Controllers
@@ -46,7 +46,7 @@ namespace Notesnook.API.Controllers
     [ApiController]
     [Route("monographs")]
     [Authorize("Sync")]
-    public class MonographsController(Repository<Monograph> monographs, IURLAnalyzer analyzer, SyncDeviceService syncDeviceService, ILogger<MonographsController> logger) : ControllerBase
+    public class MonographsController(Repository<Monograph> monographs, IURLAnalyzer analyzer, SyncDeviceService syncDeviceService, WampServiceAccessor serviceAccessor, ILogger<MonographsController> logger) : ControllerBase
     {
         const string SVG_PIXEL = "<svg xmlns='http://www.w3.org/2000/svg' width='1' height='1'><circle r='9'/></svg>";
         private const int MAX_DOC_SIZE = 15 * 1024 * 1024;
@@ -68,13 +68,15 @@ namespace Notesnook.API.Controllers
                 );
         }
 
-        private static FilterDefinition<Monograph> CreateMonographFilter(string itemId)
+        private static FilterDefinition<Monograph> CreateMonographFilter(string itemIdOrSlug)
         {
-            return ObjectId.TryParse(itemId, out ObjectId id)
+            return ObjectId.TryParse(itemIdOrSlug, out ObjectId id)
             ? Builders<Monograph>.Filter.Or(
                 Builders<Monograph>.Filter.Eq("_id", id),
-                Builders<Monograph>.Filter.Eq("ItemId", itemId))
-            : Builders<Monograph>.Filter.Eq("ItemId", itemId);
+                Builders<Monograph>.Filter.Eq("ItemId", itemIdOrSlug))
+            : Builders<Monograph>.Filter.Or(
+                Builders<Monograph>.Filter.Eq("Slug", itemIdOrSlug),
+                Builders<Monograph>.Filter.Eq("ItemId", itemIdOrSlug));
         }
 
         private async Task<Monograph> FindMonographAsync(string userId, Monograph monograph)
@@ -86,15 +88,20 @@ namespace Notesnook.API.Controllers
             return await result.FirstOrDefaultAsync();
         }
 
-        private async Task<Monograph> FindMonographAsync(string itemId)
+        private async Task<Monograph> FindMonographAsync(string itemIdOrSlug)
         {
-            var result = await monographs.Collection.FindAsync(CreateMonographFilter(itemId), new FindOptions<Monograph>
+            var result = await monographs.Collection.FindAsync(CreateMonographFilter(itemIdOrSlug), new FindOptions<Monograph>
             {
                 Limit = 1
             });
             return await result.FirstOrDefaultAsync();
         }
 
+        // private static string GenerateSlug()
+        // {
+        //     return Nanoid.Generate(size: 24);
+        // }
+
         [HttpPost]
         public async Task<IActionResult> PublishAsync([FromQuery] string? deviceId, [FromBody] Monograph monograph)
         {
@@ -107,7 +114,11 @@ namespace Notesnook.API.Controllers
                 if (existingMonograph != null && !existingMonograph.Deleted) return await UpdateAsync(deviceId, monograph);
 
                 if (monograph.EncryptedContent == null)
-                    monograph.CompressedContent = (await CleanupContentAsync(User, monograph.Content)).CompressBrotli();
+                {
+                    var sanitizationLevel = User.IsUserSubscribed() ? ContentSanitizationLevel.Partial : ContentSanitizationLevel.Full;
+                    monograph.CompressedContent = (await SanitizeContentAsync(monograph.Content, sanitizationLevel)).CompressBrotli();
+                    monograph.ContentSanitizationLevel = sanitizationLevel;
+                }
                 monograph.UserId = userId;
                 monograph.DatePublished = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
 
@@ -120,6 +131,7 @@ namespace Notesnook.API.Controllers
                 }
                 monograph.Deleted = false;
                 monograph.ViewCount = 0;
+                // monograph.Slug = GenerateSlug();
                 await monographs.Collection.ReplaceOneAsync(
                     CreateMonographFilter(userId, monograph),
                     monograph,
@@ -131,7 +143,8 @@ namespace Notesnook.API.Controllers
                 return Ok(new
                 {
                     id = monograph.ItemId,
-                    datePublished = monograph.DatePublished
+                    datePublished = monograph.DatePublished,
+                    publishUrl = Helpers.UrlHelper.ConstructPublishUrl(monograph)
                 });
             }
             catch (Exception e)
@@ -158,8 +171,12 @@ namespace Notesnook.API.Controllers
                 if (monograph.EncryptedContent?.Cipher.Length > MAX_DOC_SIZE || monograph.CompressedContent?.Length > MAX_DOC_SIZE)
                     return base.BadRequest("Monograph is too big. Max allowed size is 15mb.");
 
+                var sanitizationLevel = ContentSanitizationLevel.Unknown;
                 if (monograph.EncryptedContent == null)
-                    monograph.CompressedContent = (await CleanupContentAsync(User, monograph.Content)).CompressBrotli();
+                {
+                    sanitizationLevel = User.IsUserSubscribed() ? ContentSanitizationLevel.Partial : ContentSanitizationLevel.Full;
+                    monograph.CompressedContent = (await SanitizeContentAsync(monograph.Content, sanitizationLevel)).CompressBrotli();
+                }
                 else
                     monograph.Content = null;
 
@@ -173,6 +190,7 @@ namespace Notesnook.API.Controllers
                     .Set(m => m.SelfDestruct, monograph.SelfDestruct)
                     .Set(m => m.Title, monograph.Title)
                     .Set(m => m.Password, monograph.Password)
+                    .Set(m => m.ContentSanitizationLevel, sanitizationLevel)
                 );
                 if (!result.IsAcknowledged) return BadRequest();
 
@@ -181,7 +199,8 @@ namespace Notesnook.API.Controllers
                 return Ok(new
                 {
                     id = monograph.ItemId,
-                    datePublished = monograph.DatePublished
+                    datePublished = monograph.DatePublished,
+                    publishUrl = Helpers.UrlHelper.ConstructPublishUrl(existingMonograph)
                 });
             }
             catch (Exception e)
@@ -223,7 +242,22 @@ namespace Notesnook.API.Controllers
             }
 
             if (monograph.EncryptedContent == null)
+            {
+                var isContentUnsanitized = monograph.ContentSanitizationLevel == ContentSanitizationLevel.Partial || monograph.ContentSanitizationLevel == ContentSanitizationLevel.Unknown;
+                if (!Constants.IS_SELF_HOSTED && isContentUnsanitized && serviceAccessor.UserSubscriptionService != null && !await serviceAccessor.UserSubscriptionService.IsUserSubscribedAsync(Clients.Notesnook.Id, monograph.UserId!))
+                {
+                    var cleaned = await SanitizeContentAsync(monograph.CompressedContent?.DecompressBrotli(), ContentSanitizationLevel.Full);
+                    monograph.CompressedContent = cleaned.CompressBrotli();
+                    await monographs.Collection.UpdateOneAsync(
+                        CreateMonographFilter(monograph.UserId!, monograph),
+                        Builders<Monograph>.Update
+                            .Set(m => m.CompressedContent, monograph.CompressedContent)
+                            .Set(m => m.ContentSanitizationLevel, ContentSanitizationLevel.Full)
+                    );
+                }
                 monograph.Content = monograph.CompressedContent?.DecompressBrotli();
+            }
+
             monograph.ItemId ??= monograph.Id;
             return Ok(monograph);
         }
@@ -233,7 +267,8 @@ namespace Notesnook.API.Controllers
         public async Task<IActionResult> TrackView([FromRoute] string id)
         {
             var monograph = await FindMonographAsync(id);
-            if (monograph == null || monograph.Deleted) return Content(SVG_PIXEL, "image/svg+xml");
+            if (monograph == null || monograph.Deleted)
+                return Content(SVG_PIXEL, "image/svg+xml");
 
             var cookieName = $"viewed_{id}";
             var hasVisitedBefore = Request.Cookies.ContainsKey(cookieName);
@@ -241,7 +276,7 @@ namespace Notesnook.API.Controllers
             if (monograph.SelfDestruct)
             {
                 await monographs.Collection.ReplaceOneAsync(
-                    CreateMonographFilter(monograph.UserId, monograph),
+                    CreateMonographFilter(monograph.UserId!, monograph),
                     new Monograph
                     {
                         ItemId = id,
@@ -251,12 +286,12 @@ namespace Notesnook.API.Controllers
                         ViewCount = 0
                     }
                 );
-                await MarkMonographForSyncAsync(monograph.UserId, id);
+                await MarkMonographForSyncAsync(monograph.UserId!, id);
             }
             else if (!hasVisitedBefore)
             {
                 await monographs.Collection.UpdateOneAsync(
-                    CreateMonographFilter(monograph.UserId, monograph),
+                    CreateMonographFilter(monograph.UserId!, monograph),
                     Builders<Monograph>.Update.Inc(m => m.ViewCount, 1)
                 );
 
@@ -274,6 +309,7 @@ namespace Notesnook.API.Controllers
         }
 
         [HttpGet("{id}/analytics")]
+        [Obsolete("This endpoint is deprecated and will be removed in future versions. Use GET /monographs/{id}/metadata instead.")]
         public async Task<IActionResult> GetMonographAnalyticsAsync([FromRoute] string id)
         {
             if (!FeatureAuthorizationHelper.IsFeatureAllowed(Features.MONOGRAPH_ANALYTICS, Clients.Notesnook.Id, User))
@@ -317,6 +353,29 @@ namespace Notesnook.API.Controllers
             return Ok();
         }
 
+        [HttpGet("{id}/metadata")]
+        public async Task<IActionResult> GetMetadataAsync([FromRoute] string id)
+        {
+            var userId = this.User.GetUserId();
+            var monograph = await FindMonographAsync(id);
+            if (monograph == null || monograph.Deleted || monograph.UserId != userId)
+            {
+                return NotFound();
+            }
+
+            var isPro = FeatureAuthorizationHelper.IsFeatureAllowed(Features.MONOGRAPH_ANALYTICS, Clients.Notesnook.Id, User);
+            var totalViews = isPro ? monograph.ViewCount : 0;
+
+            return Ok(new
+            {
+                publishUrl = Helpers.UrlHelper.ConstructPublishUrl(monograph),
+                analytics = new
+                {
+                    totalViews
+                }
+            });
+        }
+
         private async Task MarkMonographForSyncAsync(string userId, string monographId, string? deviceId, string? jti)
         {
             if (deviceId == null) return;
@@ -329,7 +388,20 @@ namespace Notesnook.API.Controllers
             await syncDeviceService.AddIdsToAllDevicesAsync(userId, [new(monographId, "monograph")]);
         }
 
-        private async Task<string> CleanupContentAsync(ClaimsPrincipal user, string? content)
+        // (selector, url-bearing attribute) pairs to inspect
+        private static readonly (string Selector, string Attribute)[] urlElements =
+        [
+            ("a", "href"),
+            ("img", "src"),
+            ("iframe", "src"),
+            ("embed", "src"),
+            ("object", "data"),
+            ("source", "src"),
+            ("video", "src"),
+            ("audio", "src"),
+        ];
+
+        private async Task<string> SanitizeContentAsync(string? content, ContentSanitizationLevel level)
         {
             if (string.IsNullOrEmpty(content)) return string.Empty;
             if (Constants.IS_SELF_HOSTED) return content;
@@ -338,31 +410,36 @@ namespace Notesnook.API.Controllers
                 var json = JsonSerializer.Deserialize<MonographContent>(content) ?? throw new Exception("Invalid monograph content.");
                 var html = json.Data;
 
-                if (user.IsUserSubscribed())
+                if (level == ContentSanitizationLevel.Partial)
                 {
                     var config = Configuration.Default.WithDefaultLoader();
                     var context = BrowsingContext.New(config);
                     var document = await context.OpenAsync(r => r.Content(html));
-                    foreach (var element in document.QuerySelectorAll("a"))
+
+                    foreach (var (selector, attribute) in urlElements)
                     {
-                        var href = element.GetAttribute("href");
-                        if (string.IsNullOrEmpty(href)) continue;
-                        if (!await analyzer.IsURLSafeAsync(href))
+                        foreach (var element in document.QuerySelectorAll(selector))
                         {
-                            logger.LogInformation("Malicious URL detected: {Url}", href);
-                            element.RemoveAttribute("href");
+                            var url = element.GetAttribute(attribute);
+                            if (string.IsNullOrEmpty(url)) continue;
+                            if (!await analyzer.IsURLSafeAsync(url))
+                            {
+                                logger.LogInformation("Malicious URL detected in <{Selector} {Attribute}>: {Url}", selector, attribute, url);
+                                element.RemoveAttribute(attribute);
+                            }
                         }
                     }
+
                     html = document.ToHtml();
                 }
-                else
+                else if (level == ContentSanitizationLevel.Full)
                 {
                     var config = Configuration.Default.WithDefaultLoader();
                     var context = BrowsingContext.New(config);
                     var document = await context.OpenAsync(r => r.Content(html));
                     foreach (var element in document.QuerySelectorAll("a,iframe,img,object,svg,button,link"))
                     {
-                        foreach (var attr in element.Attributes)
+                        foreach (var attr in element.Attributes.ToList())
                             element.RemoveAttribute(attr.Name);
                     }
                     html = document.ToHtml();

Notesnook.API/Controllers/S3Controller.cs

@@ -21,20 +21,17 @@ using System;
 using System.Net.Http;
 using System.Security.Claims;
 using System.Threading.Tasks;
-using Amazon.S3.Model;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http.Extensions;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
 using MongoDB.Driver;
-using Notesnook.API.Accessors;
 using Notesnook.API.Helpers;
 using Notesnook.API.Interfaces;
 using Notesnook.API.Models;
 using Streetwriters.Common;
 using Streetwriters.Common.Accessors;
 using Streetwriters.Common.Extensions;
-using Streetwriters.Common.Interfaces;
 using Streetwriters.Common.Models;
 
 namespace Notesnook.API.Controllers
@@ -212,5 +209,26 @@ namespace Notesnook.API.Controllers
                 return BadRequest(new { error = "Failed to delete attachment." });
             }
         }
+
+        // [HttpPost("bulk-delete")]
+        // public async Task<IActionResult> DeleteBulkAsync([FromBody] DeleteBulkObjectsRequest request)
+        // {
+        //     try
+        //     {
+        //         if (request.Names == null || request.Names.Length == 0)
+        //         {
+        //             return BadRequest(new { error = "No files specified for deletion." });
+        //         }
+
+        //         var userId = this.User.GetUserId();
+        //         await s3Service.DeleteObjectsAsync(userId, request.Names);
+        //         return Ok();
+        //     }
+        //     catch (Exception ex)
+        //     {
+        //         logger.LogError(ex, "Error deleting objects for user.");
+        //         return BadRequest(new { error = "Failed to delete attachments." });
+        //     }
+        // }
     }
 }

Notesnook.API/Controllers/UsersController.cs

@@ -18,7 +18,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 using System;
+using System.Net.Http;
 using System.Security.Claims;
+using System.Text.Json;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http.Timeouts;
@@ -28,22 +30,25 @@ using Notesnook.API.Interfaces;
 using Notesnook.API.Models;
 using Notesnook.API.Models.Responses;
 using Streetwriters.Common;
+using Streetwriters.Common.Accessors;
+using Streetwriters.Common.Extensions;
+using Streetwriters.Common.Messages;
+using Streetwriters.Common.Models;
 
 namespace Notesnook.API.Controllers
 {
     [ApiController]
     [Authorize]
     [Route("users")]
-    public class UsersController(IUserService UserService, ILogger<UsersController> logger) : ControllerBase
+    public class UsersController(IUserService UserService, WampServiceAccessor serviceAccessor, ILogger<UsersController> logger) : ControllerBase
     {
         [HttpPost]
         [AllowAnonymous]
-        public async Task<IActionResult> Signup()
+        public async Task<IActionResult> Signup([FromForm] SignupForm form)
         {
             try
             {
-                await UserService.CreateUserAsync();
-                return Ok();
+                return Ok(await UserService.CreateUserAsync(form));
             }
             catch (Exception ex)
             {
@@ -85,6 +90,43 @@ namespace Notesnook.API.Controllers
             }
         }
 
+        [HttpPatch("password/{type}")]
+        public async Task<IActionResult> ChangePassword([FromRoute] string type, [FromBody] ChangePasswordForm form)
+        {
+            var userId = User.GetUserId();
+            var clientId = User.FindFirstValue("client_id");
+            var jti = User.FindFirstValue("jti");
+            var isPasswordReset = type == "reset";
+            try
+            {
+                var result = isPasswordReset ? await serviceAccessor.UserAccountService.ResetPasswordAsync(userId, form.NewPassword) : await serviceAccessor.UserAccountService.ChangePasswordAsync(userId, form.OldPassword, form.NewPassword);
+                if (!result)
+                    return BadRequest("Failed to change password.");
+
+                await UserService.SetUserKeysAsync(userId, form.UserKeys);
+
+                await serviceAccessor.UserAccountService.ClearSessionsAsync(userId, clientId, all: false, jti, null);
+
+                await WampServers.MessengerServer.PublishMessageAsync(MessengerServerTopics.SendSSETopic, new SendSSEMessage
+                {
+                    UserId = userId,
+                    OriginTokenId = jti,
+                    Message = new Message
+                    {
+                        Type = "logout",
+                        Data = JsonSerializer.Serialize(new { reason = "Password changed." })
+                    }
+                });
+
+                return Ok();
+            }
+            catch (Exception ex)
+            {
+                logger.LogError(ex, "Failed to change password");
+                return BadRequest(new { error = ex.Message });
+            }
+        }
+
         [HttpPost("reset")]
         public async Task<IActionResult> Reset([FromForm] bool removeAttachments)
         {

Notesnook.API/Dockerfile

@@ -27,8 +27,6 @@ FROM build AS publish
 RUN dotnet publish -c Release -o /app/publish \
   #--runtime alpine-x64 \
   --self-contained true \
-  /p:TrimMode=partial \
-  /p:PublishTrimmed=true \
   /p:PublishSingleFile=true \
   /p:JsonSerializerIsReflectionEnabledByDefault=true \
   -a $TARGETARCH

Notesnook.API/Helpers/UrlHelper.cs

@@ -0,0 +1,42 @@
+/*
+This file is part of the Notesnook Sync Server project (https://notesnook.com/)
+
+Copyright (C) 2023 Streetwriters (Private) Limited
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the Affero GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+Affero GNU General Public License for more details.
+
+You should have received a copy of the Affero GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+using Notesnook.API.Models;
+using Streetwriters.Common;
+
+namespace Notesnook.API.Helpers
+{
+    public class UrlHelper
+    {
+        public static string ConstructPublishUrl(string slug)
+        {
+            var baseUrl = Constants.MONOGRAPH_PUBLIC_URL;
+            return $"{baseUrl}/{slug}";
+        }
+        public static string ConstructPublishUrl(Monograph monograph)
+        {
+            return ConstructPublishUrl(monograph.Slug ?? monograph.ItemId ?? monograph.Id);
+        }
+
+        public static string ConstructPublishUrl(MonographMetadata metadata)
+        {
+            return ConstructPublishUrl(metadata.PublishUrl ?? metadata.ItemId);
+        }
+    }
+}

Notesnook.API/Hubs/SyncV2Hub.cs

@@ -32,6 +32,8 @@ using Microsoft.AspNetCore.SignalR;
 using Microsoft.Extensions.Logging;
 using MongoDB.Driver;
 using Notesnook.API.Authorization;
+using Notesnook.API.Extensions;
+using Notesnook.API.Helpers;
 using Notesnook.API.Interfaces;
 using Notesnook.API.Models;
 using Notesnook.API.Services;
@@ -130,13 +132,19 @@ namespace Notesnook.API.Hubs
             var stopwatch = Stopwatch.StartNew();
             try
             {
-
                 var UpsertItems = UpsertActionsMap[pushItem.Type] ?? throw new Exception($"Invalid item type: {pushItem.Type}.");
                 UpsertItems(pushItem.Items, userId, 1);
 
                 if (!await unit.Commit()) return 0;
 
                 await SyncDeviceService.AddIdsToOtherDevicesAsync(userId, deviceId, pushItem.Items.Select((i) => new ItemKey(i.ItemId, pushItem.Type)));
+
+                // we need to delete the inbox items from the inbox collection
+                // after syncing to prevent them from being sent again in the 
+                // next fetch.
+                var itemIds = pushItem.Items.Select(i => i.ItemId).ToList();
+                await Repositories.InboxItems.DeleteManyAsync(i => i.UserId == userId && itemIds.Contains(i.ItemId));
+
                 return 1;
             }
             finally
@@ -247,7 +255,7 @@ namespace Notesnook.API.Hubs
                 var chunks = PrepareChunks(
                     userId,
                     ids,
-                    size: 1000,
+                    size: 100,
                     resetSync: device.IsSyncReset,
                     maxBytes: 7 * 1024 * 1024
                 );
@@ -275,15 +283,25 @@ namespace Notesnook.API.Hubs
                                 Builders<Monograph>.Filter.In("_id", unsyncedMonographIds)
                             )
                         );
-                    var userMonographs = await Repositories.Monographs.Collection.Find(filter).Project((m) => new MonographMetadata
+                    var userMonographs = await Repositories.Monographs.Collection
+                        .Find(filter)
+                        .Project((m) => new MonographMetadata
+                        {
+                            DatePublished = m.DatePublished,
+                            Deleted = m.Deleted,
+                            Password = m.Password,
+                            SelfDestruct = m.SelfDestruct,
+                            Title = m.Title,
+                            ItemId = m.ItemId ?? m.Id.ToString(),
+                            PublishUrl = m.Slug // this will be converted to full url in the end, but we only need slug for now
+                        })
+                        .ToListAsync();
+
+                    userMonographs = userMonographs.Select((p) =>
                     {
-                        DatePublished = m.DatePublished,
-                        Deleted = m.Deleted,
-                        Password = m.Password,
-                        SelfDestruct = m.SelfDestruct,
-                        Title = m.Title,
-                        ItemId = m.ItemId ?? m.Id.ToString()
-                    }).ToListAsync();
+                        p.PublishUrl = UrlHelper.ConstructPublishUrl(p);
+                        return p;
+                    }).ToList();
 
                     if (userMonographs.Count > 0 && !await Clients.Caller.SendMonographs(userMonographs).WaitAsync(TimeSpan.FromMinutes(10)))
                         throw new HubException("Client rejected monographs.");

Notesnook.API/Interfaces/IS3Service.cs

@@ -17,18 +17,16 @@ You should have received a copy of the Affero GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-using System.Threading;
 using System.Threading.Tasks;
 using Amazon.S3.Model;
 using Notesnook.API.Models;
-using Notesnook.API.Models.Responses;
-using Streetwriters.Common.Interfaces;
 
 namespace Notesnook.API.Interfaces
 {
     public interface IS3Service
     {
         Task DeleteObjectAsync(string userId, string name);
+        Task DeleteObjectsAsync(string userId, string[] names);
         Task DeleteDirectoryAsync(string userId);
         Task<long> GetObjectSizeAsync(string userId, string name);
         Task<string?> GetUploadObjectUrlAsync(string userId, string name);

Notesnook.API/Interfaces/IUserService.cs

@@ -20,12 +20,13 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 using System.Threading.Tasks;
 using Notesnook.API.Models;
 using Notesnook.API.Models.Responses;
+using Streetwriters.Common.Models;
 
 namespace Notesnook.API.Interfaces
 {
     public interface IUserService
     {
-        Task CreateUserAsync();
+        Task<SignupResponse> CreateUserAsync(SignupForm form);
         Task DeleteUserAsync(string userId);
         Task DeleteUserAsync(string userId, string? jti, string password);
         Task<bool> ResetUserAsync(string userId, bool removeAttachments);

Notesnook.API/Models/Algorithms.cs

@@ -22,6 +22,5 @@ namespace Notesnook.API.Models
     public class Algorithms
     {
         public static string Default => "xcha-argon2i13-7";
-        public static string XSAL_X25519_7 => "xsal-x25519-7";
     }
 }

Notesnook.API/Models/ChangePasswordForm.cs

@@ -0,0 +1,24 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Notesnook.API.Models
+{
+    public class ChangePasswordForm
+    {
+        public string? OldPassword
+        {
+            get; set;
+        }
+
+        [Required]
+        public required string NewPassword
+        {
+            get; set;
+        }
+
+        [Required]
+        public required UserKeys UserKeys
+        {
+            get; set;
+        }
+    }
+}

Notesnook.API/Models/ContentSanitizationLevel.cs

@@ -0,0 +1,38 @@
+/*
+This file is part of the Notesnook Sync Server project (https://notesnook.com/)
+
+Copyright (C) 2023 Streetwriters (Private) Limited
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the Affero GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+Affero GNU General Public License for more details.
+
+You should have received a copy of the Affero GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+namespace Notesnook.API.Models
+{
+    public enum ContentSanitizationLevel
+    {
+        Unknown = 0,
+        /// <summary>
+        /// Full sanitization applied: links, iframes, images, and other embeds are stripped.
+        /// Applied to monographs published by free-tier users.
+        /// </summary>
+        Full = 1,
+
+        /// <summary>
+        /// Partial sanitization: only unsafe/malicious URLs are removed; rich content is preserved.
+        /// Applied to monographs published by subscribed users. Requires re-sanitization if the
+        /// publisher's subscription lapses.
+        /// </summary>
+        Partial = 2
+    }
+}

Notesnook.API/Models/DeleteBulkRequest.cs

@@ -0,0 +1,25 @@
+/*
+This file is part of the Notesnook Sync Server project (https://notesnook.com/)
+
+Copyright (C) 2023 Streetwriters (Private) Limited
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the Affero GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+Affero GNU General Public License for more details.
+
+You should have received a copy of the Affero GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+namespace Notesnook.API.Models;
+
+public class DeleteBulkObjectsRequest
+{
+    public required string[] Names { get; set; }
+}

Notesnook.API/Models/InboxSyncItem.cs

@@ -20,46 +20,64 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 using System.ComponentModel.DataAnnotations;
 using System.Runtime.Serialization;
 using System.Text.Json.Serialization;
+using MongoDB.Bson;
+using MongoDB.Bson.Serialization.Attributes;
 
 namespace Notesnook.API.Models
 {
 
     [MessagePack.MessagePackObject]
-    public class InboxSyncItem : SyncItem
+    public class InboxSyncItem
     {
-        [DataMember(Name = "key")]
-        [JsonPropertyName("key")]
-        [MessagePack.Key("key")]
-        [Required]
-        public required EncryptedKey Key { get; set; }
-
-        [DataMember(Name = "salt")]
-        [JsonPropertyName("salt")]
-        [MessagePack.Key("salt")]
-        [Required]
-        public required string Salt { get; set; }
-    }
-
-    [MessagePack.MessagePackObject]
-    public class EncryptedKey
-    {
-        [DataMember(Name = "alg")]
-        [JsonPropertyName("alg")]
-        [MessagePack.Key("alg")]
-        [Required]
-        public required string Algorithm { get; set; }
-
         [DataMember(Name = "cipher")]
         [JsonPropertyName("cipher")]
         [MessagePack.Key("cipher")]
         [Required]
-        public required string Cipher { get; set; }
+        public string Cipher
+        {
+            get; set;
+        }
 
-        [JsonPropertyName("length")]
-        [DataMember(Name = "length")]
-        [MessagePack.Key("length")]
+        [DataMember(Name = "userId")]
+        [JsonPropertyName("userId")]
+        [MessagePack.Key("userId")]
+        public string? UserId
+        {
+            get; set;
+        }
+
+        [DataMember(Name = "id")]
+        [JsonPropertyName("id")]
+        [MessagePack.Key("id")]
+        public string? ItemId
+        {
+            get; set;
+        }
+
+        [BsonId]
+        [BsonIgnoreIfDefault]
+        [BsonRepresentation(BsonType.ObjectId)]
+        [JsonIgnore]
+        [MessagePack.IgnoreMember]
+        public ObjectId Id
+        {
+            get; set;
+        }
+
+        [JsonPropertyName("v")]
+        [DataMember(Name = "v")]
+        [MessagePack.Key("v")]
         [Required]
-        public long Length
+        public double Version
+        {
+            get; set;
+        }
+
+        [JsonPropertyName("alg")]
+        [DataMember(Name = "alg")]
+        [MessagePack.Key("alg")]
+        [Required]
+        public string Algorithm
         {
             get; set;
         }

Notesnook.API/Models/Monograph.cs

@@ -56,6 +56,9 @@ namespace Notesnook.API.Models
         [JsonPropertyName("title")]
         public string? Title { get; set; }
 
+        [JsonPropertyName("slug")]
+        public string? Slug { get; set; }
+
         [JsonPropertyName("userId")]
         public string? UserId { get; set; }
 
@@ -83,5 +86,8 @@ namespace Notesnook.API.Models
 
         [JsonPropertyName("viewCount")]
         public int ViewCount { get; set; }
+
+        [JsonIgnore]
+        public ContentSanitizationLevel ContentSanitizationLevel { get; set; }
     }
 }

Notesnook.API/Models/MonographMetadata.cs

@@ -19,8 +19,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 using System.Runtime.Serialization;
 using System.Text.Json.Serialization;
-using MongoDB.Bson;
-using MongoDB.Bson.Serialization.Attributes;
 
 namespace Notesnook.API.Models
 {
@@ -37,6 +35,9 @@ namespace Notesnook.API.Models
         [JsonPropertyName("title")]
         public string? Title { get; set; }
 
+        [JsonPropertyName("publishUrl")]
+        public string? PublishUrl { get; set; }
+
         [JsonPropertyName("selfDestruct")]
         public bool SelfDestruct { get; set; }
 

Notesnook.API/Models/ResetPasswordForm.cs

@@ -0,0 +1,19 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Notesnook.API.Models
+{
+    public class ResetPasswordForm
+    {
+        [Required]
+        public required string NewPassword
+        {
+            get; set;
+        }
+
+        [Required]
+        public required UserKeys UserKeys
+        {
+            get; set;
+        }
+    }
+}

Notesnook.API/Models/Responses/SignupResponse.cs

@@ -1,14 +0,0 @@
-using System.Text.Json.Serialization;
-using Streetwriters.Common.Models;
-
-namespace Notesnook.API.Models.Responses
-{
-    public class SignupResponse : Response
-    {
-        [JsonPropertyName("userId")]
-        public string? UserId { get; set; }
-
-        [JsonPropertyName("errors")]
-        public string[]? Errors { get; set; }
-    }
-}

Notesnook.API/Models/Responses/UserResponse.cs

@@ -15,6 +15,11 @@ namespace Notesnook.API.Models.Responses
 
         [JsonPropertyName("monographPasswordsKey")]
         public EncryptedData? MonographPasswordsKey { get; set; }
+        [JsonPropertyName("dataEncryptionKey")]
+        public EncryptedData? DataEncryptionKey { get; set; }
+
+        [JsonPropertyName("legacyDataEncryptionKey")]
+        public EncryptedData? LegacyDataEncryptionKey { get; set; }
 
         [JsonPropertyName("inboxKeys")]
         public InboxKeys? InboxKeys { get; set; }

Notesnook.API/Models/SyncItem.cs

@@ -98,6 +98,14 @@ namespace Notesnook.API.Models
             get; set;
         }
 
+        [JsonPropertyName("keyVersion")]
+        [DataMember(Name = "keyVersion")]
+        [MessagePack.Key("keyVersion")]
+        public int? KeyVersion
+        {
+            get; set;
+        }
+
         [JsonPropertyName("alg")]
         [DataMember(Name = "alg")]
         [MessagePack.Key("alg")]

Notesnook.API/Models/UserKeys.cs

@@ -24,6 +24,8 @@ namespace Notesnook.API.Models
         public EncryptedData? AttachmentsKey { get; set; }
         public EncryptedData? MonographPasswordsKey { get; set; }
         public InboxKeys? InboxKeys { get; set; }
+        public EncryptedData? DataEncryptionKey { get; set; }
+        public EncryptedData? LegacyDataEncryptionKey { get; set; }
     }
 
     public class InboxKeys

Notesnook.API/Models/UserSettings.cs

@@ -55,6 +55,8 @@ namespace Notesnook.API.Models
         public EncryptedData? VaultKey { get; set; }
         public EncryptedData? AttachmentsKey { get; set; }
         public EncryptedData? MonographPasswordsKey { get; set; }
+        public EncryptedData? DataEncryptionKey { get; set; }
+        public EncryptedData? LegacyDataEncryptionKey { get; set; }
         public InboxKeys? InboxKeys { get; set; }
         public Limit? StorageLimit { get; set; }
 

Notesnook.API/Notesnook.API.csproj

@@ -17,6 +17,7 @@
     <PackageReference Include="AspNetCore.HealthChecks.MongoDb" Version="6.0.1-rc2.2" />
     <PackageReference Include="AWSSDK.S3" Version="3.7.310.8" />
     <PackageReference Include="Microsoft.AspNetCore.SignalR.Protocols.MessagePack" Version="6.0.3" />
+    <PackageReference Include="Microsoft.AspNetCore.SignalR.StackExchangeRedis" Version="9.0.13" />
     <PackageReference Include="Microsoft.AspNetCore.Server.Kestrel.Https" Version="2.2.0" />
     <PackageReference Include="Nanoid" Version="3.1.0" />
     <PackageReference Include="OpenTelemetry.Exporter.Prometheus.AspNetCore" Version="1.9.0-alpha.2" />

Notesnook.API/Repositories/SyncItemsRepository.cs

@@ -49,7 +49,7 @@ namespace Notesnook.API.Repositories
             this.logger = logger;
         }
 
-        private readonly List<string> ALGORITHMS = [Algorithms.Default, Algorithms.XSAL_X25519_7];
+        private readonly List<string> ALGORITHMS = [Algorithms.Default];
         private bool IsValidAlgorithm(string algorithm)
         {
             return ALGORITHMS.Contains(algorithm);
@@ -91,11 +91,7 @@ namespace Notesnook.API.Repositories
         public void DeleteByUserId(string userId)
         {
             var filter = Builders<SyncItem>.Filter.Eq("UserId", userId);
-            var writes = new List<WriteModel<SyncItem>>
-            {
-                new DeleteManyModel<SyncItem>(filter)
-            };
-            dbContext.AddCommand((handle, ct) => Collection.BulkWriteAsync(handle, writes, options: null, ct));
+            dbContext.AddCommand((handle, ct) => Collection.DeleteManyAsync(handle, filter, null, ct));
         }
 
         public void Upsert(SyncItem item, string userId, long dateSynced)

Notesnook.API/Services/S3Service.cs

@@ -24,21 +24,15 @@ using System.Net.Http;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using Amazon;
-using Amazon.Runtime;
 using Amazon.S3;
 using Amazon.S3.Model;
 using Microsoft.Extensions.Logging;
-using Microsoft.Extensions.Options;
 using MongoDB.Driver;
-using Notesnook.API.Accessors;
 using Notesnook.API.Helpers;
 using Notesnook.API.Interfaces;
 using Notesnook.API.Models;
 using Streetwriters.Common;
 using Streetwriters.Common.Accessors;
-using Streetwriters.Common.Enums;
-using Streetwriters.Common.Interfaces;
-using Streetwriters.Common.Models;
 
 namespace Notesnook.API.Services
 {
@@ -110,6 +104,70 @@ namespace Notesnook.API.Services
                 throw new Exception("Could not delete object.");
         }
 
+        public async Task DeleteObjectsAsync(string userId, string[] names)
+        {
+            var objectsToDelete = new List<KeyVersion>();
+
+            foreach (var name in names)
+            {
+                var objectName = GetFullObjectName(userId, name);
+                if (objectName == null) continue;
+
+                objectsToDelete.Add(new KeyVersion { Key = objectName });
+            }
+
+            if (objectsToDelete.Count == 0)
+            {
+                return;
+            }
+
+            // S3 DeleteObjectsRequest supports max 1000 keys per request
+            var batchSize = 1000;
+            var deleteErrors = new List<DeleteError>();
+            var failedBatches = 0;
+
+            for (int i = 0; i < objectsToDelete.Count; i += batchSize)
+            {
+                var batch = objectsToDelete.Skip(i).Take(batchSize).ToList();
+                var deleteObjectsResponse = await S3InternalClient.ExecuteWithFailoverAsync(
+                    (client) => client.DeleteObjectsAsync(new DeleteObjectsRequest
+                    {
+                        BucketName = INTERNAL_BUCKET_NAME,
+                        Objects = batch,
+                    }),
+                    operationName: "DeleteObjects",
+                    isWriteOperation: true
+                );
+
+                if (!IsSuccessStatusCode((int)deleteObjectsResponse.HttpStatusCode))
+                {
+                    failedBatches++;
+                }
+
+                if (deleteObjectsResponse.DeleteErrors.Count > 0)
+                {
+                    deleteErrors.AddRange(deleteObjectsResponse.DeleteErrors);
+                }
+            }
+
+            if (failedBatches > 0 || deleteErrors.Count > 0)
+            {
+                var errorParts = new List<string>();
+
+                if (failedBatches > 0)
+                {
+                    errorParts.Add($"{failedBatches} batch(es) failed with unsuccessful status code");
+                }
+
+                if (deleteErrors.Count > 0)
+                {
+                    errorParts.Add(string.Join(", ", deleteErrors.Select(e => $"{e.Key}: {e.Message}")));
+                }
+
+                throw new Exception(string.Join("; ", errorParts));
+            }
+        }
+
         public async Task DeleteDirectoryAsync(string userId)
         {
             var request = new ListObjectsV2Request

Notesnook.API/Services/SyncDeviceService.cs

@@ -73,7 +73,7 @@ namespace Notesnook.API.Services
             return result;
         }
 
-        const int MaxIdsPerChunk = 400_000;
+        const int MaxIdsPerChunk = 25_000;
         public async Task AppendIdsAsync(string userId, string deviceId, string key, IEnumerable<ItemKey> ids)
         {
             var filter = DeviceIdsChunkFilter(userId, deviceId, key) & Builders<DeviceIdsChunk>.Filter.Where(x => x.Ids.Length < MaxIdsPerChunk);
@@ -81,8 +81,8 @@ namespace Notesnook.API.Services
 
             if (chunk != null)
             {
-                var update = Builders<DeviceIdsChunk>.Update.PushEach(x => x.Ids, ids.Select(i => i.ToString()));
-                await repositories.DeviceIdsChunks.Collection.UpdateOneAsync(
+                var update = Builders<DeviceIdsChunk>.Update.AddToSetEach(x => x.Ids, ids.Select(i => i.ToString()));
+                await repositories.DeviceIdsChunks.Collection.WithWriteConcern(WriteConcern.W1).UpdateOneAsync(
                     Builders<DeviceIdsChunk>.Filter.Eq(x => x.Id, chunk.Id),
                     update
                 );
@@ -96,11 +96,11 @@ namespace Notesnook.API.Services
                     Key = key,
                     Ids = [.. ids.Select(i => i.ToString())]
                 };
-                await repositories.DeviceIdsChunks.Collection.InsertOneAsync(newChunk);
+                await repositories.DeviceIdsChunks.Collection.WithWriteConcern(WriteConcern.W1).InsertOneAsync(newChunk);
             }
 
             var emptyChunksFilter = DeviceIdsChunkFilter(userId, deviceId, key) & Builders<DeviceIdsChunk>.Filter.Size(x => x.Ids, 0);
-            await repositories.DeviceIdsChunks.Collection.DeleteManyAsync(emptyChunksFilter);
+            await repositories.DeviceIdsChunks.Collection.WithWriteConcern(WriteConcern.W1).DeleteManyAsync(emptyChunksFilter);
         }
 
         public async Task WriteIdsAsync(string userId, string deviceId, string key, IEnumerable<ItemKey> ids)
@@ -121,7 +121,7 @@ namespace Notesnook.API.Services
                 };
                 writes.Add(new InsertOneModel<DeviceIdsChunk>(newChunk));
             }
-            await repositories.DeviceIdsChunks.Collection.BulkWriteAsync(writes);
+            await repositories.DeviceIdsChunks.Collection.WithWriteConcern(WriteConcern.W1).BulkWriteAsync(writes);
         }
 
         public async Task<HashSet<ItemKey>> FetchUnsyncedIdsAsync(string userId, string deviceId)

Notesnook.API/Services/UserService.cs

@@ -18,6 +18,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 using System;
+using System.Collections.Generic;
 using System.Net.Http;
 using System.Text.Json;
 using System.Threading;
@@ -50,15 +51,16 @@ namespace Notesnook.API.Services
         private IS3Service S3Service { get; set; } = s3Service;
         private readonly IUnitOfWork unit = unitOfWork;
 
-        public async Task CreateUserAsync()
+        public async Task<SignupResponse> CreateUserAsync(SignupForm form)
         {
-            SignupResponse response = await httpClient.ForwardAsync<SignupResponse>(this.HttpContextAccessor, $"{Servers.IdentityServer}/signup", HttpMethod.Post);
-            if (!response.Success || (response.Errors != null && response.Errors.Length > 0) || response.UserId == null)
+            SignupResponse response = await serviceAccessor.UserAccountService.CreateUserAsync(form.ClientId, form.Email, form.Password, HttpContextAccessor.HttpContext?.Request.Headers["User-Agent"].ToString());
+
+            if ((response.Errors != null && response.Errors.Length > 0) || response.UserId == null)
             {
                 logger.LogError("Failed to sign up user: {Response}", JsonSerializer.Serialize(response));
                 if (response.Errors != null && response.Errors.Length > 0)
                     throw new Exception(string.Join(" ", response.Errors));
-                else throw new Exception("Could not create a new account. Error code: " + response.StatusCode);
+                else throw new Exception("Could not create a new account.");
             }
 
             await Repositories.UsersSettings.InsertAsync(new UserSettings
@@ -83,7 +85,7 @@ namespace Notesnook.API.Services
                 });
             }
 
-            logger.LogInformation("New user created: {Response}", JsonSerializer.Serialize(response));
+            return response;
         }
 
         public async Task<UserResponse> GetUserAsync(string userId)
@@ -133,6 +135,8 @@ namespace Notesnook.API.Services
                 PhoneNumber = user.PhoneNumber,
                 AttachmentsKey = userSettings.AttachmentsKey,
                 MonographPasswordsKey = userSettings.MonographPasswordsKey,
+                DataEncryptionKey = userSettings.DataEncryptionKey,
+                LegacyDataEncryptionKey = userSettings.LegacyDataEncryptionKey,
                 InboxKeys = userSettings.InboxKeys,
                 Salt = userSettings.Salt,
                 Subscription = subscription,
@@ -155,6 +159,11 @@ namespace Notesnook.API.Services
             {
                 userSettings.MonographPasswordsKey = keys.MonographPasswordsKey;
             }
+            if (keys.DataEncryptionKey != null)
+                userSettings.DataEncryptionKey = keys.DataEncryptionKey;
+            if (keys.LegacyDataEncryptionKey != null)
+                userSettings.LegacyDataEncryptionKey = keys.LegacyDataEncryptionKey;
+
             if (keys.InboxKeys != null)
             {
                 if (keys.InboxKeys.Public == null || keys.InboxKeys.Private == null)
@@ -175,6 +184,8 @@ namespace Notesnook.API.Services
                     };
                     await Repositories.InboxApiKey.InsertAsync(defaultInboxKey);
                 }
+
+                await Repositories.InboxItems.DeleteManyAsync(t => t.UserId == userId);
             }
 
             await Repositories.UsersSettings.UpdateAsync(userSettings.Id, userSettings);
@@ -182,6 +193,7 @@ namespace Notesnook.API.Services
 
         public async Task DeleteUserAsync(string userId)
         {
+            logger.LogInformation("Deleting user {UserId}", userId);
             var cc = new CancellationTokenSource();
 
             Repositories.Notes.DeleteByUserId(userId);
@@ -267,6 +279,8 @@ namespace Notesnook.API.Services
 
             userSettings.AttachmentsKey = null;
             userSettings.MonographPasswordsKey = null;
+            userSettings.DataEncryptionKey = null;
+            userSettings.LegacyDataEncryptionKey = null;
             userSettings.VaultKey = null;
             userSettings.InboxKeys = null;
             userSettings.LastSynced = 0;

Notesnook.API/Startup.cs

@@ -210,13 +210,16 @@ namespace Notesnook.API
 
             services.AddHealthChecks();
 
-            services.AddSignalR((hub) =>
+            var signalR = services.AddSignalR((hub) =>
             {
                 hub.MaximumReceiveMessageSize = 100 * 1024 * 1024;
                 hub.ClientTimeoutInterval = TimeSpan.FromMinutes(10);
                 hub.EnableDetailedErrors = true;
             }).AddMessagePackProtocol().AddJsonProtocol();
 
+            if (!string.IsNullOrEmpty(Constants.SIGNALR_REDIS_CONNECTION_STRING))
+                signalR.AddStackExchangeRedis(Constants.SIGNALR_REDIS_CONNECTION_STRING);
+
             services.AddResponseCompression(options =>
             {
                 options.EnableForHttps = true;

Notesnook.Inbox.API/Dockerfile

@@ -1,4 +1,4 @@
-FROM oven/bun:1.2.21-slim
+FROM oven/bun:1.3.5-slim
 
 RUN mkdir -p /home/bun/app && chown -R bun:bun /home/bun/app
 

Notesnook.Inbox.API/README.md

@@ -0,0 +1,68 @@
+# Notesnook Inbox API
+
+## Running locally
+
+### Requirements
+
+- Bun (v1.3.0 or higher)
+
+### Commands
+
+- `bun install` - Install dependencies
+- `bun run dev` - Start the development server
+- `bun run build` - Build the project for production
+- `bun run start` - Start the production server
+
+## Self-hosting
+
+The easiest way to self-host is with Docker or Docker Compose.
+
+Prerequisites:
+
+- `docker` (Engine) installed
+- `docker-compose` (optional, for multi-service setups)
+
+Build and run with Docker:
+
+```bash
+# build the image from the current folder
+docker build -t notesnook-inbox-api .
+
+# run the container (example)
+docker run --rm -p 3000:3000 \
+	-e PORT=3000 \
+	-e NOTESNOOK_API_SERVER_URL="https://api.notesnook.com" \
+	notesnook-inbox-api
+```
+
+Docker Compose (example):
+
+```yaml
+services:
+	inbox-api:
+		image: notesnook-inbox-api
+		build: .
+		ports:
+			- "3000:3000"
+		environment:
+			PORT: 3000
+			NOTESNOOK_API_SERVER_URL: "https://api.notesnook.com"
+		restart: unless-stopped
+```
+
+Environment variables:
+
+- `PORT` — port the service listens on (default: `5181`)
+- `NOTESNOOK_API_SERVER_URL` — base URL of the Notesnook API used to fetch public inbox keys
+
+_If you prefer running without Docker, use `bun install` and `bun run start` with the environment variables set._
+
+## Writing from scratch
+
+The inbox API server is pretty simple to write from scratch in any programming language and/or framework. There's only one endpoint that needs to be implemented, which does these three steps:
+
+1. Fetch the user's public inbox API key from the Notesnook API.
+2. Encrypt the payload using `openpgp` or any other `openpgp` compatible library.
+3. Post the encrypted payload to the Notesnook API.
+
+You can refer to the [source code](./src/index.ts) for implementation details.

Notesnook.Inbox.API/bun.lock

@@ -6,7 +6,7 @@
       "dependencies": {
         "express": "^5.1.0",
         "express-rate-limit": "^8.1.0",
-        "libsodium-wrappers-sumo": "^0.7.15",
+        "openpgp": "^6.2.2",
         "zod": "^4.1.9",
       },
       "devDependencies": {
@@ -116,10 +116,6 @@
 
     "is-promise": ["is-promise@4.0.0", "", {}, "sha512-hvpoI6korhJMnej285dSg6nu1+e6uxs7zG3BYAm5byqDsgJNWwxzM6z6iZiAgQR4TJ30JmBTOwqZUw3WlyH3AQ=="],
 
-    "libsodium-sumo": ["libsodium-sumo@0.7.15", "", {}, "sha512-5tPmqPmq8T8Nikpm1Nqj0hBHvsLFCXvdhBFV7SGOitQPZAA6jso8XoL0r4L7vmfKXr486fiQInvErHtEvizFMw=="],
-
-    "libsodium-wrappers-sumo": ["libsodium-wrappers-sumo@0.7.15", "", { "dependencies": { "libsodium-sumo": "^0.7.15" } }, "sha512-aSWY8wKDZh5TC7rMvEdTHoyppVq/1dTSAeAR7H6pzd6QRT3vQWcT5pGwCotLcpPEOLXX6VvqihSPkpEhYAjANA=="],
-
     "math-intrinsics": ["math-intrinsics@1.1.0", "", {}, "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g=="],
 
     "media-typer": ["media-typer@1.1.0", "", {}, "sha512-aisnrDP4GNe06UcKFnV5bfMNPBUw4jsLGaWwWfnH3v02GnBuXX2MCVn5RbrWo0j3pczUilYblq7fQ7Nw2t5XKw=="],
@@ -140,6 +136,8 @@
 
     "once": ["once@1.4.0", "", { "dependencies": { "wrappy": "1" } }, "sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w=="],
 
+    "openpgp": ["openpgp@6.2.2", "", {}, "sha512-P/dyEqQ3gfwOCo+xsqffzXjmUhGn4AZTOJ1LCcN21S23vAk+EAvMJOQTsb/C8krL6GjOSBxqGYckhik7+hneNw=="],
+
     "parseurl": ["parseurl@1.3.3", "", {}, "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ=="],
 
     "path-to-regexp": ["path-to-regexp@8.3.0", "", {}, "sha512-7jdwVIRtsP8MYpdXSwOS0YdD0Du+qOoF/AEPIt88PcCFrZCzx41oxku1jD88hZBwbNUIEfpqvuhjFaMAqMTWnA=="],

Notesnook.Inbox.API/package.json

@@ -22,7 +22,7 @@
   "dependencies": {
     "express": "^5.1.0",
     "express-rate-limit": "^8.1.0",
-    "libsodium-wrappers-sumo": "^0.7.15",
+    "openpgp": "^6.2.2",
     "zod": "^4.1.9"
   },
   "devDependencies": {

Notesnook.Inbox.API/scripts/test.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+GNUPGHOME=$(mktemp -d)
+
+curl -s http://localhost:5264/inbox/public-encryption-key -H "Authorization: $API_KEY" | jq -r .key > "$GNUPGHOME"/pubkey.asc && gpg --batch --homedir "$GNUPGHOME" --import "$GNUPGHOME"/pubkey.asc >/dev/null 2>&1 && KEYID=$(gpg --homedir "$GNUPGHOME" --list-keys --with-colons | awk -F: '/^pub:/ {print $5; exit}') && printf '%s' '{"title":"Test title CLIE S","type":"note","source":"cli","version":1}' | gpg --batch --homedir "$GNUPGHOME" --trust-model always --armor --encrypt -r "$KEYID" | jq -Rs --arg alg "pgp-aes256" '{v:1, cipher:., alg:$alg}' | curl -s -X POST http://localhost:5264/inbox/items -H "Content-Type: application/json" -H "Authorization: $API_KEY" -d @- && rm -rf "$GNUPGHOME"

Notesnook.Inbox.API/scripts/test.ts

@@ -0,0 +1,18 @@
+const response = await fetch("http://localhost:5181/inbox", {
+  method: "POST",
+  headers: {
+    Authorization: process.env.API_KEY,
+    "Content-Type": "application/json",
+  },
+  body: JSON.stringify({
+    title: "This is test note 4",
+    type: "note",
+    source: "script",
+    version: 1,
+    content: {
+      type: "html",
+      data: "<p>This is test note content 3</p>",
+    },
+  }),
+});
+console.log(await response.text());

Notesnook.Inbox.API/src/index.ts

@@ -1,15 +1,13 @@
 import express from "express";
-import _sodium, { base64_variants } from "libsodium-wrappers-sumo";
 import { z } from "zod";
 import { rateLimit } from "express-rate-limit";
+import * as openpgp from "openpgp";
 
 const NOTESNOOK_API_SERVER_URL = process.env.NOTESNOOK_API_SERVER_URL;
 if (!NOTESNOOK_API_SERVER_URL) {
   throw new Error("NOTESNOOK_API_SERVER_URL is not defined");
 }
 
-let sodium: typeof _sodium;
-
 const RawInboxItemSchema = z.object({
   title: z.string().min(1, "Title is required"),
   pinned: z.boolean().optional(),
@@ -31,62 +29,31 @@ const RawInboxItemSchema = z.object({
 
 interface EncryptedInboxItem {
   v: 1;
-  key: Omit<EncryptedInboxItem, "key" | "iv" | "v" | "salt">;
-  iv: string;
-  alg: string;
   cipher: string;
-  length: number;
-  salt: string;
+  alg: string;
 }
 
-function encrypt(rawData: string, publicKey: string): EncryptedInboxItem {
-  try {
-    const password = sodium.crypto_aead_xchacha20poly1305_ietf_keygen();
-    const saltBytes = sodium.randombytes_buf(sodium.crypto_pwhash_SALTBYTES);
-    const key = sodium.crypto_pwhash(
-      sodium.crypto_aead_xchacha20poly1305_ietf_KEYBYTES,
-      password,
-      saltBytes,
-      3, // operations limit
-      1024 * 1024 * 8, // memory limit (8MB)
-      sodium.crypto_pwhash_ALG_ARGON2I13
-    );
-    const nonce = sodium.randombytes_buf(
-      sodium.crypto_aead_xchacha20poly1305_ietf_NPUBBYTES
-    );
-    const data = sodium.from_string(rawData);
-    const cipher = sodium.crypto_aead_xchacha20poly1305_ietf_encrypt(
-      data,
-      null,
-      null,
-      nonce,
-      key
-    );
-    const inboxPublicKey = sodium.from_base64(
-      publicKey,
-      base64_variants.URLSAFE_NO_PADDING
-    );
-    const encryptedKey = sodium.crypto_box_seal(key, inboxPublicKey);
-
-    return {
-      v: 1,
-      key: {
-        cipher: sodium.to_base64(
-          encryptedKey,
-          base64_variants.URLSAFE_NO_PADDING
-        ),
-        alg: `xsal-x25519-${base64_variants.URLSAFE_NO_PADDING}`,
-        length: password.length,
-      },
-      iv: sodium.to_base64(nonce, base64_variants.URLSAFE_NO_PADDING),
-      alg: `xcha-argon2i13-${base64_variants.URLSAFE_NO_PADDING}`,
-      cipher: sodium.to_base64(cipher, base64_variants.URLSAFE_NO_PADDING),
-      length: data.length,
-      salt: sodium.to_base64(saltBytes, base64_variants.URLSAFE_NO_PADDING),
-    };
-  } catch (error) {
-    throw new Error(`encryption failed: ${error}`);
-  }
+/**
+ * Encrypts raw data using OpenPGP with the recipient's public key
+ *
+ * @param {string} rawData - The plaintext data to encrypt
+ * @param {string} rawPublicKey - The recipient's OpenPGP public key
+ */
+async function encrypt(
+  rawData: string,
+  rawPublicKey: string,
+): Promise<EncryptedInboxItem> {
+  const publicKey = await openpgp.readKey({ armoredKey: rawPublicKey });
+  const message = await openpgp.createMessage({ text: rawData });
+  const encrypted = await openpgp.encrypt({
+    message,
+    encryptionKeys: publicKey,
+  });
+  return {
+    v: 1,
+    cipher: encrypted,
+    alg: "pgp-aes256",
+  };
 }
 
 async function getInboxPublicEncryptionKey(apiKey: string) {
@@ -96,11 +63,11 @@ async function getInboxPublicEncryptionKey(apiKey: string) {
       headers: {
         Authorization: apiKey,
       },
-    }
+    },
   );
   if (!response.ok) {
     throw new Error(
-      `failed to fetch inbox public encryption key: ${await response.text()}`
+      `failed to fetch inbox public encryption key: ${await response.text()}`,
     );
   }
 
@@ -110,7 +77,7 @@ async function getInboxPublicEncryptionKey(apiKey: string) {
 
 async function postEncryptedInboxItem(
   apiKey: string,
-  item: EncryptedInboxItem
+  item: EncryptedInboxItem,
 ) {
   const response = await fetch(`${NOTESNOOK_API_SERVER_URL}/inbox/items`, {
     method: "POST",
@@ -131,9 +98,12 @@ app.use(
   rateLimit({
     windowMs: 1 * 60 * 1000, // 1 minute
     limit: 60,
-  })
+  }),
 );
-app.post("/inbox", async (req, res) => {
+app.get("/health", (_, res) => {
+  return res.status(200).json({ status: "ok" });
+});
+app.post("/", async (req, res) => {
   try {
     const apiKey = req.headers["authorization"];
     if (!apiKey) {
@@ -154,9 +124,9 @@ app.post("/inbox", async (req, res) => {
       });
     }
 
-    const encryptedItem = encrypt(
+    const encryptedItem = await encrypt(
       JSON.stringify(validationResult.data),
-      inboxPublicKey
+      inboxPublicKey,
     );
     console.log("[info] encrypted item");
 
@@ -180,14 +150,9 @@ app.post("/inbox", async (req, res) => {
   }
 });
 
-(async () => {
-  await _sodium.ready;
-  sodium = _sodium;
-
-  const PORT = Number(process.env.PORT || "5181");
-  app.listen(PORT, () => {
-    console.log(`📫 notesnook inbox api server running on port ${PORT}`);
-  });
-})();
+const PORT = Number(process.env.PORT || "5181");
+app.listen(PORT, () => {
+  console.log(`📫 notesnook inbox api server running on port ${PORT}`);
+});
 
 export default app;

Streetwriters.Common/Clients.cs

@@ -39,6 +39,7 @@ namespace Streetwriters.Common
             AppId = ApplicationType.NOTESNOOK,
             AccountRecoveryRedirectURL = $"{Constants.NOTESNOOK_APP_HOST}/account/recovery",
             EmailConfirmedRedirectURL = $"{Constants.NOTESNOOK_APP_HOST}/account/verified",
+            PackageName = "com.streetwriters.notesnook",
             OnEmailConfirmed = async (userId) =>
             {
                 await WampServers.MessengerServer.PublishMessageAsync(MessengerServerTopics.SendSSETopic, new SendSSEMessage

Streetwriters.Common/Constants.cs

@@ -79,6 +79,8 @@ namespace Streetwriters.Common
         public static string? SUBSCRIPTIONS_CERT_PATH => ReadSecret("SUBSCRIPTIONS_CERT_PATH");
         public static string? SUBSCRIPTIONS_CERT_KEY_PATH => ReadSecret("SUBSCRIPTIONS_CERT_KEY_PATH");
         public static string[] NOTESNOOK_CORS_ORIGINS => ReadSecret("NOTESNOOK_CORS")?.Split(",") ?? [];
+        public static string? SIGNALR_REDIS_CONNECTION_STRING => ReadSecret("SIGNALR_REDIS_CONNECTION_STRING");
+        public static string MONOGRAPH_PUBLIC_URL => ReadSecret("MONOGRAPH_PUBLIC_URL") ?? "https://monogr.ph";
 
         public static string? ReadSecret(string name)
         {

Streetwriters.Common/Interfaces/IUserAccountService.cs

@@ -10,7 +10,13 @@ namespace Streetwriters.Common.Interfaces
         Task<UserModel?> GetUserAsync(string clientId, string userId);
         [WampProcedure("co.streetwriters.identity.users.delete_user")]
         Task DeleteUserAsync(string clientId, string userId, string password);
-        // [WampProcedure("co.streetwriters.identity.users.create_user")]
-        // Task<UserModel> CreateUserAsync();
+        [WampProcedure("co.streetwriters.identity.users.change_password")]
+        Task<bool> ChangePasswordAsync(string userId, string oldPassword, string newPassword);
+        [WampProcedure("co.streetwriters.identity.users.reset_password")]
+        Task<bool> ResetPasswordAsync(string userId, string newPassword);
+        [WampProcedure("co.streetwriters.identity.users.clear_sessions")]
+        Task<bool> ClearSessionsAsync(string userId, string clientId, bool all, string jti, string? refreshToken);
+        [WampProcedure("co.streetwriters.identity.users.create_user")]
+        Task<SignupResponse> CreateUserAsync(string clientId, string email, string password, string? userAgent = null);
     }
 }

Streetwriters.Common/Interfaces/IUserSubscriptionService.cs

@@ -9,6 +9,8 @@ namespace Streetwriters.Common.Interfaces
     {
         [WampProcedure("co.streetwriters.subscriptions.subscriptions.get_user_subscription")]
         Task<Subscription?> GetUserSubscriptionAsync(string clientId, string userId);
+        [WampProcedure("co.streetwriters.subscriptions.subscriptions.is_user_subscribed")]
+        Task<bool> IsUserSubscribedAsync(string clientId, string userId);
         Subscription TransformUserSubscription(Subscription subscription);
     }
 }

Streetwriters.Common/Models/Client.cs

@@ -39,6 +39,7 @@ namespace Streetwriters.Common.Models
         public required string SenderName { get; set; }
         public required string EmailConfirmedRedirectURL { get; set; }
         public required string AccountRecoveryRedirectURL { get; set; }
+        public required string PackageName { get; set; }
 
         public Func<string, Task>? OnEmailConfirmed { get; set; }
     }

Streetwriters.Common/Models/SignupForm.cs

@@ -21,7 +21,7 @@ using System.ComponentModel.DataAnnotations;
 using System.Runtime.Serialization;
 using Microsoft.AspNetCore.Mvc;
 
-namespace Streetwriters.Identity.Models
+namespace Streetwriters.Common.Models
 {
     public class SignupForm
     {

Streetwriters.Common/Models/SignupResponse.cs

@@ -0,0 +1,30 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Text.Json.Serialization;
+using Streetwriters.Common.Models;
+
+namespace Streetwriters.Common.Models
+{
+    public class SignupResponse
+    {
+        [JsonPropertyName("access_token")]
+        public string AccessToken { get; set; }
+        [JsonPropertyName("expires_in")]
+        public int AccessTokenLifetime { get; set; }
+        [JsonPropertyName("refresh_token")]
+        public string RefreshToken { get; set; }
+        [JsonPropertyName("scope")]
+        public string Scope { get; set; }
+        [JsonPropertyName("user_id")]
+        public string UserId { get; set; }
+        public string[]? Errors { get; set; }
+
+        public static SignupResponse Error(IEnumerable<string> errors)
+        {
+            return new SignupResponse
+            {
+                Errors = [.. errors]
+            };
+        }
+    }
+}

Streetwriters.Common/Services/URLAnalyzer.cs

@@ -1,6 +1,9 @@
 using System;
 using System.Net.Http;
+using System.Net.Http.Headers;
 using System.Net.Http.Json;
+using System.Text;
+using System.Text.Json;
 using System.Threading.Tasks;
 using Streetwriters.Common.Interfaces;
 
@@ -22,7 +25,8 @@ namespace Streetwriters.Common.Services
         public async Task<bool> IsURLSafeAsync(string uri)
         {
             if (string.IsNullOrEmpty(Constants.WEBRISK_API_URI)) return true;
-            var response = await httpClient.PostAsJsonAsync(Constants.WEBRISK_API_URI, new { uri });
+            var body = new StringContent(JsonSerializer.Serialize(new { uri }), Encoding.UTF8, new MediaTypeHeaderValue("application/json"));
+            var response = await httpClient.PostAsync(Constants.WEBRISK_API_URI, body);
             if (!response.IsSuccessStatusCode) return true;
             var json = await response.Content.ReadFromJsonAsync<WebRiskAPIResponse>();
             return json.Threat.ThreatTypes == null || json.Threat.ThreatTypes.Length == 0;

Streetwriters.Data/DbContexts/MongoDbContext.cs

@@ -33,9 +33,6 @@ namespace Streetwriters.Data.DbContexts
         public static IMongoClient CreateMongoDbClient(IDbSettings dbSettings)
         {
             var settings = MongoClientSettings.FromConnectionString(dbSettings.ConnectionString);
-            settings.MaxConnectionPoolSize = 500;
-            settings.MinConnectionPoolSize = 0;
-            settings.HeartbeatInterval = TimeSpan.FromSeconds(60);
             return new MongoClient(settings);
         }
 

Streetwriters.Identity/Controllers/AccountController.cs

@@ -25,6 +25,7 @@ using System.Security.Claims;
 using System.Text.Json;
 using System.Threading.Tasks;
 using AspNetCore.Identity.Mongo.Model;
+using IdentityServer4.Extensions;
 using IdentityServer4.Stores;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Identity;
@@ -37,6 +38,7 @@ using Streetwriters.Common.Interfaces;
 using Streetwriters.Common.Messages;
 using Streetwriters.Common.Models;
 using Streetwriters.Identity.Enums;
+using Streetwriters.Identity.Extensions;
 using Streetwriters.Identity.Interfaces;
 using Streetwriters.Identity.Models;
 using Streetwriters.Identity.Services;
@@ -53,14 +55,26 @@ namespace Streetwriters.Identity.Controllers
         private IPersistedGrantStore PersistedGrantStore { get; set; }
         private ITokenGenerationService TokenGenerationService { get; set; }
         private IUserAccountService UserAccountService { get; set; }
+        private EmailAddressValidator EmailValidator { get; set; }
         private readonly ILogger<AccountController> logger;
-        public AccountController(UserManager<User> _userManager, ITemplatedEmailSender _emailSender,
-        SignInManager<User> _signInManager, RoleManager<MongoRole> _roleManager, IPersistedGrantStore store,
-        ITokenGenerationService tokenGenerationService, IMFAService _mfaService, IUserAccountService userAccountService, ILogger<AccountController> logger) : base(_userManager, _emailSender, _signInManager, _roleManager, _mfaService)
+
+        public AccountController(
+            UserManager<User> _userManager,
+            ITemplatedEmailSender _emailSender,
+            SignInManager<User> _signInManager,
+            RoleManager<MongoRole> _roleManager,
+            IPersistedGrantStore store,
+            ITokenGenerationService tokenGenerationService,
+            IMFAService _mfaService,
+            IUserAccountService userAccountService,
+            ILogger<AccountController> logger,
+            EmailAddressValidator emailValidator
+        ) : base(_userManager, _emailSender, _signInManager, _roleManager, _mfaService)
         {
             PersistedGrantStore = store;
             TokenGenerationService = tokenGenerationService;
             UserAccountService = userAccountService;
+            EmailValidator = emailValidator;
             this.logger = logger;
         }
 
@@ -124,11 +138,16 @@ namespace Streetwriters.Identity.Controllers
             {
                 ArgumentNullException.ThrowIfNull(user.Email);
                 var code = await UserManager.GenerateEmailConfirmationTokenAsync(user);
-                var callbackUrl = Url.TokenLink(user.Id.ToString(), code, client.Id, TokenType.CONFRIM_EMAIL);
+                var callbackUrl = UrlExtensions.TokenLink(user.Id.ToString(), code, client.Id, TokenType.CONFRIM_EMAIL);
                 await EmailSender.SendConfirmationEmailAsync(user.Email, callbackUrl, client);
             }
             else
             {
+                if (!await EmailValidator.IsEmailAddressValidAsync(newEmail.ToLowerInvariant()))
+                {
+                    return BadRequest("Invalid email address.");
+                }
+
                 var code = await UserManager.GenerateChangeEmailTokenAsync(user, newEmail);
                 await EmailSender.SendChangeEmailConfirmationAsync(newEmail, code, client);
             }
@@ -149,6 +168,7 @@ namespace Streetwriters.Identity.Controllers
         [EnableRateLimiting("strict")]
         public async Task<IActionResult> ResetUserPassword([FromForm] ResetPasswordForm form)
         {
+
             var client = Clients.FindClientById(form.ClientId);
             if (client == null) return BadRequest("Invalid client_id.");
 
@@ -156,13 +176,13 @@ namespace Streetwriters.Identity.Controllers
             if (!await UserService.IsUserValidAsync(UserManager, user, form.ClientId)) return Ok();
 
             var code = await UserManager.GenerateUserTokenAsync(user, TokenOptions.DefaultProvider, "ResetPassword");
-            var callbackUrl = Url.TokenLink(user.Id.ToString(), code, client.Id, TokenType.RESET_PASSWORD);
+            var callbackUrl = UrlExtensions.TokenLink(user.Id.ToString(), code, client.Id, TokenType.RESET_PASSWORD);
 #if (DEBUG || STAGING)
             return Ok(callbackUrl);
 #else
-            logger.LogInformation("Password reset email sent to: {Email}, callback URL: {CallbackUrl}", user.Email, callbackUrl);
-            await EmailSender.SendPasswordResetEmailAsync(user.Email, callbackUrl, client);
-            return Ok();
+                        logger.LogInformation("Password reset email sent to: {Email}, callback URL: {CallbackUrl}", user.Email, callbackUrl);
+                        await EmailSender.SendPasswordResetEmailAsync(user.Email, callbackUrl, client);
+                        return Ok();
 #endif
         }
 
@@ -248,34 +268,6 @@ namespace Streetwriters.Identity.Controllers
                         }
                         return BadRequest(result.Errors.ToErrors());
                     }
-                case "change_password":
-                    {
-                        ArgumentNullException.ThrowIfNull(form.OldPassword);
-                        ArgumentNullException.ThrowIfNull(form.NewPassword);
-                        var result = await UserManager.ChangePasswordAsync(user, form.OldPassword, form.NewPassword);
-                        if (result.Succeeded)
-                        {
-                            await SendLogoutMessageAsync(user.Id.ToString(), "Password changed.");
-                            return Ok();
-                        }
-                        return BadRequest(result.Errors.ToErrors());
-                    }
-                case "reset_password":
-                    {
-                        ArgumentNullException.ThrowIfNull(form.NewPassword);
-                        var result = await UserManager.RemovePasswordAsync(user);
-                        if (result.Succeeded)
-                        {
-                            await MFAService.ResetMFAAsync(user);
-                            result = await UserManager.AddPasswordAsync(user, form.NewPassword);
-                            if (result.Succeeded)
-                            {
-                                await SendLogoutMessageAsync(user.Id.ToString(), "Password reset.");
-                                return Ok();
-                            }
-                        }
-                        return BadRequest(result.Errors.ToErrors());
-                    }
                 case "change_marketing_consent":
                     {
                         var claimType = $"{client.Id}:marketing_consent";
@@ -294,40 +286,14 @@ namespace Streetwriters.Identity.Controllers
         [HttpPost("sessions/clear")]
         public async Task<IActionResult> ClearUserSessions([FromQuery] bool all, [FromForm] string? refresh_token)
         {
-            var client = Clients.FindClientById(User.FindFirstValue("client_id"));
-            if (client == null) return BadRequest("Invalid client_id.");
-
-            var user = await UserManager.GetUserAsync(User) ?? throw new Exception("User not found.");
-            if (!await UserService.IsUserValidAsync(UserManager, user, client.Id)) return BadRequest($"Unable to find user with ID '{user.Id}'.");
-
             var jti = User.FindFirstValue("jti");
-
-            var grants = await PersistedGrantStore.GetAllAsync(new PersistedGrantFilter
-            {
-                ClientId = client.Id,
-                SubjectId = user.Id.ToString()
-            });
-            string? refreshTokenKey = refresh_token != null ? GetHashedKey(refresh_token, PersistedGrantTypes.RefreshToken) : null;
-            var removedKeys = new List<string>();
-            foreach (var grant in grants)
-            {
-                if (!all && (grant.Data.Contains(jti) || grant.Key == refreshTokenKey)) continue;
-                await PersistedGrantStore.RemoveAsync(grant.Key);
-                removedKeys.Add(grant.Key);
-            }
-
-            await WampServers.NotesnookServer.PublishMessageAsync(IdentityServerTopics.ClearCacheTopic, new ClearCacheMessage(removedKeys));
-            await WampServers.MessengerServer.PublishMessageAsync(IdentityServerTopics.ClearCacheTopic, new ClearCacheMessage(removedKeys));
-            await WampServers.SubscriptionServer.PublishMessageAsync(IdentityServerTopics.ClearCacheTopic, new ClearCacheMessage(removedKeys));
-            await SendLogoutMessageAsync(user.Id.ToString(), "Session revoked.");
+            var userId = User.GetSubjectId();
+            var clientId = User.FindFirstValue("client_id");
+            if (await UserAccountService.ClearSessionsAsync(userId, clientId, all, refresh_token, jti))
+                await SendLogoutMessageAsync(userId, "Session revoked.");
             return Ok();
         }
 
-        private static string GetHashedKey(string value, string grantType)
-        {
-            return (value + ":" + grantType).Sha256();
-        }
-
         private async Task SendLogoutMessageAsync(string userId, string reason)
         {
             await SendMessageAsync(userId, new Message

Streetwriters.Identity/Controllers/SignupController.cs

@@ -1,156 +0,0 @@
-/*
-This file is part of the Notesnook Sync Server project (https://notesnook.com/)
-
-Copyright (C) 2023 Streetwriters (Private) Limited
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the Affero GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-Affero GNU General Public License for more details.
-
-You should have received a copy of the Affero GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-using System.Collections.Generic;
-using System.Linq;
-using System.Security.Claims;
-using System.Threading.Tasks;
-using AspNetCore.Identity.Mongo.Model;
-using Microsoft.AspNetCore.Authorization;
-using Microsoft.AspNetCore.Identity;
-using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.RateLimiting;
-using Microsoft.Extensions.Logging;
-using Streetwriters.Common;
-using Streetwriters.Common.Enums;
-using Streetwriters.Common.Models;
-using Streetwriters.Identity.Enums;
-using Streetwriters.Identity.Interfaces;
-using Streetwriters.Identity.Models;
-using Streetwriters.Identity.Services;
-
-namespace Streetwriters.Identity.Controllers
-{
-    [ApiController]
-    [Route("signup")]
-    public class SignupController : IdentityControllerBase
-    {
-        private readonly ILogger<SignupController> logger;
-        private readonly EmailAddressValidator emailValidator;
-
-        public SignupController(UserManager<User> _userManager, ITemplatedEmailSender _emailSender,
-        SignInManager<User> _signInManager, RoleManager<MongoRole> _roleManager, IMFAService _mfaService,
-        ILogger<SignupController> logger, EmailAddressValidator emailValidator) : base(_userManager, _emailSender, _signInManager, _roleManager, _mfaService)
-        {
-            this.logger = logger;
-            this.emailValidator = emailValidator;
-        }
-
-        private async Task AddClientRoleAsync(string clientId)
-        {
-            if (await RoleManager.FindByNameAsync(clientId) == null)
-                await RoleManager.CreateAsync(new MongoRole(clientId));
-        }
-
-        [HttpPost]
-        [AllowAnonymous]
-        [EnableRateLimiting("strict")]
-        public async Task<IActionResult> Signup([FromForm] SignupForm form)
-        {
-            if (Constants.DISABLE_SIGNUPS)
-                return BadRequest(new string[] { "Creating new accounts is not allowed." });
-            try
-            {
-                var client = Clients.FindClientById(form.ClientId);
-                if (client == null) return BadRequest(new string[] { "Invalid client id." });
-
-                await AddClientRoleAsync(client.Id);
-
-                // email addresses must be case-insensitive
-                form.Email = form.Email.ToLowerInvariant();
-                form.Username = form.Username?.ToLowerInvariant();
-
-                if (!await emailValidator.IsEmailAddressValidAsync(form.Email)) return BadRequest(new string[] { "Invalid email address." });
-
-                var result = await UserManager.CreateAsync(new User
-                {
-                    Email = form.Email,
-                    EmailConfirmed = Constants.IS_SELF_HOSTED,
-                    UserName = form.Username ?? form.Email,
-                }, form.Password);
-
-                if (result.Errors.Any((e) => e.Code == "DuplicateEmail"))
-                {
-                    var user = await UserManager.FindByEmailAsync(form.Email);
-                    if (user == null) return BadRequest(new string[] { "User not found." });
-
-                    if (!await UserManager.IsInRoleAsync(user, client.Id))
-                    {
-                        if (!await UserManager.CheckPasswordAsync(user, form.Password))
-                        {
-                            // TODO
-                            await UserManager.RemovePasswordAsync(user);
-                            await UserManager.AddPasswordAsync(user, form.Password);
-                        }
-                        await MFAService.DisableMFAAsync(user);
-                        await UserManager.AddToRoleAsync(user, client.Id);
-                    }
-                    else
-                    {
-                        return BadRequest(new string[] { "Invalid email address.." });
-                    }
-
-                    return Ok(new
-                    {
-                        userId = user.Id.ToString()
-                    });
-                }
-
-                if (result.Succeeded)
-                {
-                    var user = await UserManager.FindByEmailAsync(form.Email);
-                    if (user == null) return BadRequest(new string[] { "User not found after creation." });
-
-                    await UserManager.AddToRoleAsync(user, client.Id);
-                    if (Constants.IS_SELF_HOSTED)
-                    {
-                        await UserManager.AddClaimAsync(user, new Claim(UserService.GetClaimKey(client.Id), "believer"));
-                    }
-                    else
-                    {
-                        await UserManager.AddClaimAsync(user, new Claim("platform", PlatformFromUserAgent(base.HttpContext.Request.Headers.UserAgent)));
-                        var code = await UserManager.GenerateEmailConfirmationTokenAsync(user);
-                        var callbackUrl = Url.TokenLink(user.Id.ToString(), code, client.Id, TokenType.CONFRIM_EMAIL);
-                        if (!string.IsNullOrEmpty(user.Email) && callbackUrl != null)
-                        {
-                            await EmailSender.SendConfirmationEmailAsync(user.Email, callbackUrl, client);
-                        }
-                    }
-                    return Ok(new
-                    {
-                        userId = user.Id.ToString()
-                    });
-                }
-
-                return BadRequest(result.Errors.ToErrors());
-            }
-            catch (System.Exception ex)
-            {
-                logger.LogError(ex, "Failed to create user account for email: {Email}", form.Email);
-                return BadRequest("Failed to create an account.");
-            }
-        }
-
-        static string PlatformFromUserAgent(string? userAgent)
-        {
-            if (string.IsNullOrEmpty(userAgent)) return "unknown";
-            return userAgent.Contains("okhttp/") ? "android" : userAgent.Contains("Darwin/") || userAgent.Contains("CFNetwork/") ? "ios" : "web";
-        }
-    }
-}

Streetwriters.Identity/Dockerfile

@@ -27,8 +27,6 @@ FROM build AS publish
 RUN dotnet publish -c Release -o /app/publish \
   #--runtime alpine-x64 \
   --self-contained true \
-  /p:TrimMode=partial \
-  /p:PublishTrimmed=true \
   /p:PublishSingleFile=true \
   /p:JsonSerializerIsReflectionEnabledByDefault=true \
   -a $TARGETARCH

Streetwriters.Identity/Extensions/UrlExtensions.cs

@@ -25,25 +25,24 @@ using Streetwriters.Common;
 using Streetwriters.Identity.Controllers;
 using Streetwriters.Identity.Enums;
 
-namespace Microsoft.AspNetCore.Mvc
+namespace Streetwriters.Identity.Extensions
 {
-    public static class UrlHelperExtensions
+    public static class UrlExtensions
     {
-        public static string? TokenLink(this IUrlHelper urlHelper, string userId, string code, string clientId, TokenType type)
+        public static string? TokenLink(string userId, string code, string clientId, TokenType type)
         {
-
-            return urlHelper.ActionLink(
+            var url = new UriBuilder();
 #if (DEBUG || STAGING)
-            host: $"{Servers.IdentityServer.Hostname}:{Servers.IdentityServer.Port}",
-            protocol: "http",
+            url.Host = $"{Servers.IdentityServer.Hostname}";
+            url.Port = Servers.IdentityServer.Port;
+            url.Scheme = "http";
 #else
-            host: Servers.IdentityServer.PublicURL.Host,
-            protocol: Servers.IdentityServer.PublicURL.Scheme,
+            url.Host = Servers.IdentityServer.PublicURL.Host;
+            url.Scheme = Servers.IdentityServer.PublicURL.Scheme;
 #endif
-            action: nameof(AccountController.ConfirmToken),
-            controller: "Account",
-            values: new { userId, code, clientId, type });
-
+            url.Path = "account/confirm";
+            url.Query = $"userId={Uri.EscapeDataString(userId)}&code={Uri.EscapeDataString(code)}&clientId={Uri.EscapeDataString(clientId)}&type={Uri.EscapeDataString(type.ToString())}";
+            return url.ToString();
         }
     }
 }

Streetwriters.Identity/Interfaces/ITokenGenerationService.cs

@@ -19,6 +19,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 using System.Security.Claims;
 using System.Threading.Tasks;
+using IdentityServer4.ResponseHandling;
 using IdentityServer4.Validation;
 using Streetwriters.Common.Models;
 
@@ -26,8 +27,9 @@ namespace Streetwriters.Identity.Interfaces
 {
     public interface ITokenGenerationService
     {
-        Task<string> CreateAccessTokenAsync(User user, string clientId);
-        Task<string> CreateAccessTokenFromValidatedRequestAsync(ValidatedTokenRequest validatedRequest, User user, string[] scopes, int lifetime = 60);
-        Task<ClaimsPrincipal> TransformTokenRequestAsync(ValidatedTokenRequest request, User user, string grantType, string[] scopes, int lifetime = 20 * 60);
+        Task<string> CreateAccessTokenAsync(User user, string clientId, int lifetime = 1800);
+        Task<string> CreateAccessTokenFromValidatedRequestAsync(ValidatedTokenRequest validatedRequest, User user, string[] scopes, int lifetime = 1200);
+        Task<ClaimsPrincipal> TransformTokenRequestAsync(ValidatedTokenRequest request, User user, string grantType, string[] scopes, int lifetime = 1200);
+        Task<TokenResponse?> CreateUserTokensAsync(User user, string clientId, int lifetime = 1800);
     }
 }

Streetwriters.Identity/Services/TokenGenerationService.cs

@@ -24,6 +24,7 @@ using IdentityModel;
 using IdentityServer4;
 using IdentityServer4.Configuration;
 using IdentityServer4.Models;
+using IdentityServer4.ResponseHandling;
 using IdentityServer4.Services;
 using IdentityServer4.Stores;
 using IdentityServer4.Validation;
@@ -41,12 +42,14 @@ namespace Streetwriters.Identity.Helpers
         private IdentityServerOptions ISOptions { get; set; }
         private IdentityServerTools Tools { get; set; }
         private IResourceStore ResourceStore { get; set; }
+        private readonly IRefreshTokenService refreshTokenService;
         public TokenGenerationService(ITokenService tokenService,
         IUserClaimsPrincipalFactory<User> principalFactory,
         IdentityServerOptions identityServerOptions,
         IPersistedGrantStore persistedGrantStore,
         IdentityServerTools tools,
-        IResourceStore resourceStore)
+        IResourceStore resourceStore,
+        IRefreshTokenService _refreshTokenService)
         {
             TokenService = tokenService;
             PrincipalFactory = principalFactory;
@@ -54,16 +57,25 @@ namespace Streetwriters.Identity.Helpers
             PersistedGrantStore = persistedGrantStore;
             Tools = tools;
             ResourceStore = resourceStore;
+            refreshTokenService = _refreshTokenService;
         }
 
-        public async Task<string> CreateAccessTokenAsync(User user, string clientId)
+        public async Task<string> CreateAccessTokenAsync(User user, string clientId, int lifetime = 1800)
         {
+            var client = Config.Clients.FirstOrDefault((c) => c.ClientId == clientId);
+            if (client == null)
+            {
+                throw new System.ArgumentException($"Client with ID '{clientId}' not found", nameof(clientId));
+            }
+
             var IdentityPricipal = await PrincipalFactory.CreateAsync(user);
-            var IdentityUser = new IdentityServerUser(user.Id.ToString());
-            IdentityUser.AdditionalClaims = IdentityPricipal.Claims.ToArray();
-            IdentityUser.DisplayName = user.UserName;
-            IdentityUser.AuthenticationTime = System.DateTime.UtcNow;
-            IdentityUser.IdentityProvider = IdentityServerConstants.LocalIdentityProvider;
+            var IdentityUser = new IdentityServerUser(user.Id.ToString())
+            {
+                AdditionalClaims = [.. IdentityPricipal.Claims],
+                DisplayName = user.UserName,
+                AuthenticationTime = System.DateTime.UtcNow,
+                IdentityProvider = IdentityServerConstants.LocalIdentityProvider
+            };
             var Request = new TokenCreationRequest
             {
                 Subject = IdentityUser.CreatePrincipal(),
@@ -71,16 +83,61 @@ namespace Streetwriters.Identity.Helpers
                 ValidatedRequest = new ValidatedRequest()
             };
             Request.ValidatedRequest.Subject = Request.Subject;
-            Request.ValidatedRequest.SetClient(Config.Clients.FirstOrDefault((c) => c.ClientId == clientId));
+            Request.ValidatedRequest.SetClient(client);
             Request.ValidatedRequest.AccessTokenType = AccessTokenType.Reference;
-            Request.ValidatedRequest.AccessTokenLifetime = 18000;
-            Request.ValidatedResources = new ResourceValidationResult(new Resources(Config.IdentityResources, Config.ApiResources, Config.ApiScopes));
+            Request.ValidatedRequest.AccessTokenLifetime = lifetime;
+            var requestedScopes = client.AllowedScopes.Select(s => new ParsedScopeValue(s));
+            Request.ValidatedResources = await ResourceStore.CreateResourceValidationResult(new ParsedScopesResult
+            {
+                ParsedScopes = [.. requestedScopes]
+            });
             Request.ValidatedRequest.Options = ISOptions;
             Request.ValidatedRequest.ClientClaims = IdentityUser.AdditionalClaims;
             var accessToken = await TokenService.CreateAccessTokenAsync(Request);
             return await TokenService.CreateSecurityTokenAsync(accessToken);
         }
 
+        public async Task<TokenResponse?> CreateUserTokensAsync(User user, string clientId, int lifetime = 1800)
+        {
+            var client = Config.Clients.FirstOrDefault((c) => c.ClientId == clientId);
+            var principal = await PrincipalFactory.CreateAsync(user);
+            if (client == null || principal == null) return null;
+            var IdentityUser = new IdentityServerUser(user.Id.ToString())
+            {
+                AdditionalClaims = [.. principal.Claims],
+                DisplayName = user.UserName,
+                AuthenticationTime = System.DateTime.UtcNow,
+                IdentityProvider = IdentityServerConstants.LocalIdentityProvider
+            };
+            var Request = new TokenCreationRequest
+            {
+                Subject = IdentityUser.CreatePrincipal(),
+                IncludeAllIdentityClaims = true,
+                ValidatedRequest = new ValidatedRequest()
+            };
+            Request.ValidatedRequest.Subject = Request.Subject;
+            Request.ValidatedRequest.SetClient(client);
+            Request.ValidatedRequest.AccessTokenType = AccessTokenType.Reference;
+            Request.ValidatedRequest.AccessTokenLifetime = lifetime;
+            var requestedScopes = client.AllowedScopes.Select(s => new ParsedScopeValue(s));
+            Request.ValidatedResources = await ResourceStore.CreateResourceValidationResult(new ParsedScopesResult
+            {
+                ParsedScopes = [.. requestedScopes]
+            });
+            Request.ValidatedRequest.Options = ISOptions;
+            Request.ValidatedRequest.ClientClaims = IdentityUser.AdditionalClaims;
+            var accessToken = await TokenService.CreateAccessTokenAsync(Request);
+            var refreshToken = await refreshTokenService.CreateRefreshTokenAsync(principal, accessToken, client);
+
+            return new TokenResponse
+            {
+                AccessToken = await TokenService.CreateSecurityTokenAsync(accessToken),
+                AccessTokenLifetime = lifetime,
+                RefreshToken = refreshToken,
+                Scope = string.Join(" ", accessToken.Scopes)
+            };
+        }
+
         public async Task<ClaimsPrincipal> TransformTokenRequestAsync(ValidatedTokenRequest request, User user, string grantType, string[] scopes, int lifetime = 20 * 60)
         {
             var principal = await PrincipalFactory.CreateAsync(user);

Streetwriters.Identity/Services/UserAccountService.cs

@@ -1,16 +1,29 @@
 using System;
+using System.Collections.Generic;
 using System.Linq;
+using System.Security.Claims;
+using System.Text.Json;
 using System.Threading.Tasks;
+using AspNetCore.Identity.Mongo.Model;
+using IdentityServer4;
+using IdentityServer4.Stores;
 using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+using Streetwriters.Common;
 using Streetwriters.Common.Enums;
 using Streetwriters.Common.Interfaces;
+using Streetwriters.Common.Messages;
 using Streetwriters.Common.Models;
+using Streetwriters.Common.Services;
+using Streetwriters.Identity.Enums;
+using Streetwriters.Identity.Extensions;
 using Streetwriters.Identity.Interfaces;
 using Streetwriters.Identity.Models;
 
 namespace Streetwriters.Identity.Services
 {
-    public class UserAccountService(UserManager<User> userManager, IMFAService mfaService) : IUserAccountService
+    public class UserAccountService(UserManager<User> userManager, IMFAService mfaService, IPersistedGrantStore persistedGrantStore, RoleManager<MongoRole> roleManager, EmailAddressValidator emailValidator, ITemplatedEmailSender emailSender, ITokenGenerationService tokenGenerationService, ILogger<UserAccountService> logger) : IUserAccountService
     {
         public async Task<UserModel?> GetUserAsync(string clientId, string userId)
         {
@@ -54,5 +67,141 @@ namespace Streetwriters.Identity.Services
 
             await userManager.DeleteAsync(user);
         }
+
+        public async Task<bool> ChangePasswordAsync(string userId, string oldPassword, string newPassword)
+        {
+            var user = await userManager.FindByIdAsync(userId) ?? throw new Exception("User not found.");
+
+            var result = await userManager.ChangePasswordAsync(user, oldPassword, newPassword);
+            return result.Succeeded;
+        }
+
+        public async Task<bool> ResetPasswordAsync(string userId, string newPassword)
+        {
+            var user = await userManager.FindByIdAsync(userId) ?? throw new Exception("User not found.");
+
+            var result = await userManager.RemovePasswordAsync(user);
+            if (!result.Succeeded) return false;
+
+            await mfaService.ResetMFAAsync(user);
+            result = await userManager.AddPasswordAsync(user, newPassword);
+            return result.Succeeded;
+        }
+
+        public async Task<bool> ClearSessionsAsync(string userId, string clientId, bool all, string jti, string? refreshToken)
+        {
+            var client = Clients.FindClientById(clientId) ?? throw new Exception("Invalid client_id.");
+
+            var user = await userManager.FindByIdAsync(userId) ?? throw new Exception("User not found.");
+            if (!await UserService.IsUserValidAsync(userManager, user, client.Id)) throw new Exception($"Unable to find user with ID '{user.Id}'.");
+
+            var grants = await persistedGrantStore.GetAllAsync(new PersistedGrantFilter
+            {
+                ClientId = client.Id,
+                SubjectId = user.Id.ToString()
+            });
+            string? refreshTokenKey = refreshToken != null ? GetHashedKey(refreshToken, IdentityServerConstants.PersistedGrantTypes.RefreshToken) : null;
+            List<string> removedKeys = [];
+            foreach (var grant in grants)
+            {
+                if (!all && (grant.Data.Contains(jti) || grant.Key == refreshTokenKey)) continue;
+                await persistedGrantStore.RemoveAsync(grant.Key);
+                removedKeys.Add(grant.Key);
+            }
+
+            await WampServers.NotesnookServer.PublishMessageAsync(IdentityServerTopics.ClearCacheTopic, new ClearCacheMessage(removedKeys));
+            await WampServers.MessengerServer.PublishMessageAsync(IdentityServerTopics.ClearCacheTopic, new ClearCacheMessage(removedKeys));
+            await WampServers.SubscriptionServer.PublishMessageAsync(IdentityServerTopics.ClearCacheTopic, new ClearCacheMessage(removedKeys));
+            // await SendLogoutMessageAsync(user.Id.ToString(), "Session revoked.");
+            return true;
+        }
+
+        public async Task<SignupResponse> CreateUserAsync(string clientId, string email, string password, string? userAgent = null)
+        {
+            if (Constants.DISABLE_SIGNUPS)
+                return new SignupResponse
+                {
+                    Errors = ["Creating new accounts is not allowed."]
+                };
+
+            try
+            {
+                var client = Clients.FindClientById(clientId);
+                if (client == null) return new SignupResponse
+                {
+                    Errors = ["Invalid client id."]
+                };
+
+                if (await roleManager.FindByNameAsync(clientId) == null)
+                    await roleManager.CreateAsync(new MongoRole(clientId));
+
+                // email addresses must be case-insensitive
+                email = email.ToLowerInvariant();
+
+                if (!await emailValidator.IsEmailAddressValidAsync(email))
+                    return new SignupResponse
+                    {
+                        Errors = ["Invalid email address."]
+                    };
+
+                var result = await userManager.CreateAsync(new User
+                {
+                    Email = email,
+                    EmailConfirmed = Constants.IS_SELF_HOSTED,
+                    UserName = email,
+                }, password);
+
+                if (result.Succeeded)
+                {
+                    var user = await userManager.FindByEmailAsync(email);
+                    if (user == null) return SignupResponse.Error(["User not found after creation."]);
+
+                    await userManager.AddToRoleAsync(user, client.Id);
+                    if (Constants.IS_SELF_HOSTED)
+                    {
+                        await userManager.AddClaimAsync(user, new Claim(UserService.GetClaimKey(client.Id), "believer"));
+                    }
+                    else
+                    {
+                        if (userAgent != null) await userManager.AddClaimAsync(user, new Claim("platform", PlatformFromUserAgent(userAgent)));
+                        var code = await userManager.GenerateEmailConfirmationTokenAsync(user);
+                        var callbackUrl = UrlExtensions.TokenLink(user.Id.ToString(), code, client.Id, TokenType.CONFRIM_EMAIL);
+                        if (!string.IsNullOrEmpty(user.Email) && callbackUrl != null)
+                        {
+                            await emailSender.SendConfirmationEmailAsync(user.Email, callbackUrl, client);
+                        }
+                    }
+
+                    var response = await tokenGenerationService.CreateUserTokensAsync(user, client.Id, 3600);
+                    if (response == null) return SignupResponse.Error(["Failed  to generate access token."]);
+
+                    return new SignupResponse
+                    {
+                        AccessToken = response.AccessToken,
+                        AccessTokenLifetime = response.AccessTokenLifetime,
+                        RefreshToken = response.RefreshToken,
+                        Scope = response.Scope,
+                        UserId = user.Id.ToString()
+                    };
+                }
+
+                return SignupResponse.Error(result.Errors.ToErrors());
+            }
+            catch (System.Exception ex)
+            {
+                logger.LogError(ex, "Failed to create user account for email: {Email}", email);
+                return SignupResponse.Error(["Failed to create an account."]);
+            }
+        }
+
+        private static string PlatformFromUserAgent(string? userAgent)
+        {
+            if (string.IsNullOrEmpty(userAgent)) return "unknown";
+            return userAgent.Contains("okhttp/") ? "android" : userAgent.Contains("Darwin/") || userAgent.Contains("CFNetwork/") ? "ios" : "web";
+        }
+        private static string GetHashedKey(string value, string grantType)
+        {
+            return (value + ":" + grantType).Sha256();
+        }
     }
 }

Streetwriters.Identity/Startup.cs

@@ -53,6 +53,7 @@ using Streetwriters.Identity.Interfaces;
 using Streetwriters.Identity.Jobs;
 using Streetwriters.Identity.Services;
 using Streetwriters.Identity.Validation;
+using IdentityServer4.MongoDB.Configuration;
 
 namespace Streetwriters.Identity
 {
@@ -107,11 +108,6 @@ namespace Streetwriters.Identity
                 options.UsersCollection = "users";
                 // options.MigrationCollection = "migration";
                 options.ConnectionString = connectionString;
-                options.ClusterConfigurator = builder =>
-                {
-                    builder.ConfigureConnectionPool((c) => c.With(maxConnections: 500, minConnections: 0));
-                    builder.ConfigureServer(s => s.With(heartbeatInterval: TimeSpan.FromSeconds(60)));
-                };
             }).AddDefaultTokenProviders();
 
             services.AddIdentityServer(
@@ -137,6 +133,11 @@ namespace Streetwriters.Identity
             .AddKeyManagement()
             .AddFileSystemPersistence(Path.Combine(WebHostEnvironment.ContentRootPath, @"keystore"));
 
+            services.Configure<MongoDBConfiguration>(options =>
+            {
+                options.ConnectionString = connectionString;
+            });
+
             services.Configure<DataProtectionTokenProviderOptions>(options =>
             {
                 options.TokenLifespan = TimeSpan.FromHours(2);

Streetwriters.Messenger/Dockerfile

@@ -27,8 +27,6 @@ FROM build AS publish
 RUN dotnet publish -c Release -o /app/publish \
   #--runtime alpine-x64 \
   --self-contained true \
-  /p:TrimMode=partial \
-  /p:PublishTrimmed=true \
   /p:PublishSingleFile=true \
   /p:JsonSerializerIsReflectionEnabledByDefault=true \
   -a $TARGETARCH

cors-proxy/src/index.ts

@@ -39,7 +39,7 @@ function isValidUrl(urlString: string): boolean {
 // Handle proxied request with redirect support
 async function proxyRequest(
   targetUrl: string,
-  redirectCount = 0
+  redirectCount = 0,
 ): Promise<Response> {
   if (redirectCount >= MAX_REDIRECTS) {
     return new Response("Too many redirects", {
@@ -147,7 +147,7 @@ const server = Bun.serve({
           method2: "GET /?url=<encoded-url>",
           example1: `${url.origin}/https://example.com/image.jpg`,
           example2: `${url.origin}/?url=${encodeURIComponent(
-            "https://example.com/image.jpg"
+            "https://example.com/image.jpg",
           )}`,
         },
         endpoints: {
@@ -190,7 +190,7 @@ const server = Bun.serve({
         {
           status: 400,
           headers: corsHeaders,
-        }
+        },
       );
     }
 
@@ -210,7 +210,21 @@ const server = Bun.serve({
       });
     }
 
-    // Proxy the request
+    // Check if it's a YouTube URL and redirect instead of proxying
+    if (isYouTubeEmbed(targetUrl)) {
+      // YouTube URL detected, redirect to youtube-nocookie.com
+      logRequest(req.method, targetUrl, 200);
+      return new Response(serveYouTubeEmbed(targetUrl), {
+        status: 200,
+        headers: {
+          "Content-Type": "text/html; charset=utf-8",
+          // "Content-Security-Policy": "frame-ancestors *",
+          // "X-Frame-Options": "ALLOWALL",
+        },
+      });
+    }
+
+    // Proxy the request for non-YouTube URLs
     const response = await proxyRequest(targetUrl);
     logRequest(req.method, targetUrl, response.status);
     return response;
@@ -225,7 +239,84 @@ const server = Bun.serve({
 });
 
 console.log(
-  `🚀 CORS Proxy Server running on http://${server.hostname}:${server.port}`
+  `🚀 CORS Proxy Server running on http://${server.hostname}:${server.port}`,
 );
 console.log(`📋 Health check: http://${server.hostname}:${server.port}/health`);
 console.log(`🌍 Environment: ${Bun.env.NODE_ENV || "development"}`);
+
+/**
+ * This is required to bypass YouTube's Referrer Policy restrictions when
+ * embedding videos on the mobile app. It basically "proxies" the Referrer and
+ * allows any YouTube video to be embedded anywhere without restrictions.
+ */
+function serveYouTubeEmbed(url: string) {
+  return `<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width,initial-scale=1">
+    <meta name="referrer" content="strict-origin-when-cross-origin">
+    <meta name="robots" content="noindex,nofollow">
+    <title>YouTube Video Embed</title>
+    <style>
+    * {
+        margin: 0;
+        padding: 0;
+        box-sizing:border-box
+    }
+
+    body, html {
+        overflow: hidden;
+        background:#000
+    }
+
+    iframe {
+        border: 0;
+        width: 100vw;
+        height: 100vh;
+        display: block
+    }
+    </style>
+</head>
+<body>
+    <iframe src="${transformYouTubeUrl(
+      url,
+    )}" allow="accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture;web-share" allowfullscreen referrerpolicy="strict-origin-when-cross-origin" title="Video player"></iframe>
+</body>
+</html>`;
+}
+
+// Check if URL is a YouTube embed (including youtube-nocookie.com)
+function isYouTubeEmbed(urlString: string) {
+  const url = new URL(urlString);
+  return (
+    (url.hostname === "www.youtube.com" ||
+      url.hostname === "youtube.com" ||
+      url.hostname === "m.youtube.com" ||
+      url.hostname === "www.youtube-nocookie.com" ||
+      url.hostname === "youtube-nocookie.com") &&
+    url.pathname.startsWith("/embed/")
+  );
+}
+
+// Transform YouTube URLs to use youtube-nocookie.com for enhanced privacy
+function transformYouTubeUrl(urlString: string): string {
+  try {
+    const url = new URL(urlString);
+
+    // Check if it's a YouTube domain
+    if (
+      url.hostname === "www.youtube.com" ||
+      url.hostname === "youtube.com" ||
+      url.hostname === "m.youtube.com"
+    ) {
+      // Replace with youtube-nocookie.com
+      url.hostname = "www.youtube-nocookie.com";
+      return url.toString();
+    }
+
+    return urlString;
+  } catch {
+    return urlString;
+  }
+}