Files
notesnook-sync-server_custo…/Notesnook.API/Controllers/MonographsController.cs
2025-10-07 16:44:15 +05:00

376 lines
15 KiB
C#

/*
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;
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.Mvc;
using MongoDB.Bson;
using MongoDB.Driver;
using Notesnook.API.Authorization;
using Notesnook.API.Models;
using Notesnook.API.Services;
using Streetwriters.Common;
using Streetwriters.Common.Interfaces;
using Streetwriters.Common.Messages;
using Streetwriters.Data.Interfaces;
using Streetwriters.Data.Repositories;
namespace Notesnook.API.Controllers
{
[ApiController]
[Route("monographs")]
[Authorize("Sync")]
public class MonographsController : ControllerBase
{
const string SVG_PIXEL = "<svg xmlns='http://www.w3.org/2000/svg' width='1' height='1'><circle r='9'/></svg>";
private Repository<Monograph> Monographs { get; set; }
private readonly IURLAnalyzer urlAnalyzer;
private readonly IUnitOfWork unit;
private const int MAX_DOC_SIZE = 15 * 1024 * 1024;
public MonographsController(Repository<Monograph> monographs, IUnitOfWork unitOfWork, IURLAnalyzer analyzer)
{
Monographs = monographs;
unit = unitOfWork;
urlAnalyzer = analyzer;
}
private static FilterDefinition<Monograph> CreateMonographFilter(string userId, Monograph monograph)
{
var userIdFilter = Builders<Monograph>.Filter.Eq("UserId", userId);
monograph.ItemId ??= monograph.Id;
return ObjectId.TryParse(monograph.ItemId, out ObjectId id)
? Builders<Monograph>.Filter
.And(userIdFilter,
Builders<Monograph>.Filter.Or(
Builders<Monograph>.Filter.Eq("_id", id), Builders<Monograph>.Filter.Eq("ItemId", monograph.ItemId)
)
)
: Builders<Monograph>.Filter
.And(userIdFilter,
Builders<Monograph>.Filter.Eq("ItemId", monograph.ItemId)
);
}
private static FilterDefinition<Monograph> CreateMonographFilter(string itemId)
{
return ObjectId.TryParse(itemId, 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);
}
private async Task<Monograph> FindMonographAsync(string userId, Monograph monograph)
{
var result = await Monographs.Collection.FindAsync(CreateMonographFilter(userId, monograph), new FindOptions<Monograph>
{
Limit = 1
});
return await result.FirstOrDefaultAsync();
}
private async Task<Monograph> FindMonographAsync(string itemId)
{
var result = await Monographs.Collection.FindAsync(CreateMonographFilter(itemId), new FindOptions<Monograph>
{
Limit = 1
});
return await result.FirstOrDefaultAsync();
}
[HttpPost]
public async Task<IActionResult> PublishAsync([FromQuery] string? deviceId, [FromBody] Monograph monograph)
{
try
{
var userId = this.User.FindFirstValue("sub");
if (userId == null) return Unauthorized();
var existingMonograph = await FindMonographAsync(userId, monograph);
if (existingMonograph != null && !existingMonograph.Deleted)
{
return base.Conflict("This monograph is already published.");
}
if (monograph.EncryptedContent == null)
monograph.CompressedContent = (await CleanupContentAsync(monograph.Content)).CompressBrotli();
monograph.UserId = userId;
monograph.DatePublished = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
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.");
if (existingMonograph != null)
{
monograph.Id = existingMonograph?.Id;
}
monograph.Deleted = false;
await Monographs.Collection.ReplaceOneAsync(
CreateMonographFilter(userId, monograph),
monograph,
new ReplaceOptions { IsUpsert = true }
);
await MarkMonographForSyncAsync(monograph.ItemId ?? monograph.Id, deviceId);
return Ok(new
{
id = monograph.ItemId,
datePublished = monograph.DatePublished,
});
}
catch (Exception e)
{
await Slogger<MonographsController>.Error(nameof(PublishAsync), e.ToString());
return BadRequest();
}
}
[HttpPatch]
public async Task<IActionResult> UpdateAsync([FromQuery] string? deviceId, [FromBody] Monograph monograph)
{
try
{
var userId = this.User.FindFirstValue("sub");
if (userId == null) return Unauthorized();
var existingMonograph = await FindMonographAsync(userId, monograph);
if (existingMonograph == null || existingMonograph.Deleted)
{
return NotFound();
}
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.");
if (monograph.EncryptedContent == null)
monograph.CompressedContent = (await CleanupContentAsync(monograph.Content)).CompressBrotli();
else
monograph.Content = null;
monograph.DatePublished = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
var result = await Monographs.Collection.UpdateOneAsync(
CreateMonographFilter(userId, monograph),
Builders<Monograph>.Update
.Set(m => m.DatePublished, monograph.DatePublished)
.Set(m => m.CompressedContent, monograph.CompressedContent)
.Set(m => m.EncryptedContent, monograph.EncryptedContent)
.Set(m => m.SelfDestruct, monograph.SelfDestruct)
.Set(m => m.Title, monograph.Title)
.Set(m => m.Password, monograph.Password)
);
if (!result.IsAcknowledged) return BadRequest();
await MarkMonographForSyncAsync(monograph.ItemId ?? monograph.Id, deviceId);
return Ok(new
{
id = monograph.ItemId,
datePublished = monograph.DatePublished,
});
}
catch (Exception e)
{
await Slogger<MonographsController>.Error(nameof(UpdateAsync), e.ToString());
return BadRequest();
}
}
[HttpGet]
public async Task<IActionResult> GetUserMonographsAsync()
{
var userId = this.User.FindFirstValue("sub");
if (userId == null) return Unauthorized();
var monographs = (await Monographs.Collection.FindAsync(
Builders<Monograph>.Filter.And(
Builders<Monograph>.Filter.Eq("UserId", userId),
Builders<Monograph>.Filter.Ne("Deleted", true)
)
, new FindOptions<Monograph, ObjectWithId>
{
Projection = Builders<Monograph>.Projection.Include("_id").Include("ItemId"),
})).ToEnumerable();
return Ok(monographs.Select((m) => m.ItemId ?? m.Id));
}
[HttpGet("{id}")]
[AllowAnonymous]
public async Task<IActionResult> GetMonographAsync([FromRoute] string id)
{
var monograph = await FindMonographAsync(id);
if (monograph == null || monograph.Deleted)
{
return NotFound(new
{
error = "invalid_id",
error_description = $"No such monograph found."
});
}
if (monograph.EncryptedContent == null)
monograph.Content = monograph.CompressedContent.DecompressBrotli();
if (monograph.ItemId == null) monograph.ItemId = monograph.Id;
return Ok(monograph);
}
[HttpGet("{id}/view")]
[AllowAnonymous]
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.SelfDestruct)
{
var userId = this.User.FindFirstValue("sub");
await Monographs.Collection.ReplaceOneAsync(
CreateMonographFilter(userId, monograph),
new Monograph
{
ItemId = id,
Id = monograph.Id,
Deleted = true,
UserId = monograph.UserId
}
);
await MarkMonographForSyncAsync(id);
}
return Content(SVG_PIXEL, "image/svg+xml");
}
[HttpDelete("{id}")]
public async Task<IActionResult> DeleteAsync([FromQuery] string? deviceId, [FromRoute] string id)
{
var monograph = await FindMonographAsync(id);
if (monograph == null || monograph.Deleted)
{
return NotFound(new
{
error = "invalid_id",
error_description = $"No such monograph found."
});
}
var userId = this.User.FindFirstValue("sub");
await Monographs.Collection.ReplaceOneAsync(
CreateMonographFilter(userId, monograph),
new Monograph
{
ItemId = id,
Id = monograph.Id,
Deleted = true,
UserId = monograph.UserId
}
);
await MarkMonographForSyncAsync(id, deviceId);
return Ok();
}
private async Task MarkMonographForSyncAsync(string monographId, string? deviceId)
{
if (deviceId == null) return;
var userId = this.User.FindFirstValue("sub");
new SyncDeviceService(new SyncDevice(userId, deviceId)).AddIdsToOtherDevices([$"{monographId}:monograph"]);
await SendTriggerSyncEventAsync();
}
private async Task MarkMonographForSyncAsync(string monographId)
{
var userId = this.User.FindFirstValue("sub");
new SyncDeviceService(new SyncDevice(userId, string.Empty)).AddIdsToAllDevices([$"{monographId}:monograph"]);
await SendTriggerSyncEventAsync(sendToAllDevices: true);
}
private async Task SendTriggerSyncEventAsync(bool sendToAllDevices = false)
{
var userId = this.User.FindFirstValue("sub");
var jti = this.User.FindFirstValue("jti");
await WampServers.MessengerServer.PublishMessageAsync(MessengerServerTopics.SendSSETopic, new SendSSEMessage
{
OriginTokenId = sendToAllDevices ? null : jti,
UserId = userId,
Message = new Message
{
Type = "triggerSync",
Data = JsonSerializer.Serialize(new { reason = "Monographs updated." })
}
});
}
private async Task<string> CleanupContentAsync(string content)
{
try
{
var json = JsonSerializer.Deserialize<MonographContent>(content);
var html = json.Data;
if (!Constants.IS_SELF_HOSTED && !User.IsUserSubscribed())
{
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"))
{
element.Remove();
}
html = document.ToHtml();
}
if (User.IsUserSubscribed())
{
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"))
{
var href = element.GetAttribute("href");
if (string.IsNullOrEmpty(href)) continue;
if (!await urlAnalyzer.IsURLSafeAsync(href)) element.RemoveAttribute("href");
}
html = document.ToHtml();
}
return JsonSerializer.Serialize<MonographContent>(new MonographContent
{
Type = json.Type,
Data = html
});
}
catch (Exception ex)
{
await Slogger<MonographsController>.Error("CleanupContentAsync", ex.ToString());
return content;
}
}
}
}