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Code Issues 2 Packages Projects Releases 10 Wiki Activity

feat: Add support for message attachments

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- Introduced Attachment model to handle file attachments associated with messages.
- Updated ModerationController to manage message deletions and attachment cleanup.
- Enhanced ChatService to include attachments in message retrieval.
- Implemented migration for legacy single-attachment messages to the new Attachments model.
- Added unit tests for attachment handling in message formatting and parsing.
- Updated database context and migrations to support new Attachments table.
This commit is contained in:
HueByte
2026-07-16 05:02:12 +02:00
parent e05b420ce9
commit 2d33773c24
33 changed files with 1843 additions and 454 deletions
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src/EchoHub.Client/Services/ApiClient.cs
+23 -13
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@@ -185,25 +185,35 @@ public sealed class ApiClient : IDisposable
return result?.AvatarAscii;
}
public async Task<MessageDto?> UploadFileAsync(string channelName, Stream fileStream, string fileName, string? size = null,
string? declaredType = null, string? encryptedContent = null)
/// <summary>
/// Sends one message with optional text and one or more file attachments.
/// For end-to-end encrypted channels each attachment carries a declared kind and a
/// room-encrypted preview (empty when none); the caption is likewise room-encrypted.
/// </summary>
public async Task<MessageDto?> SendMessageWithAttachmentsAsync(
string channelName, string content, IReadOnlyList<OutgoingAttachment> attachments, string? size = null)
{
EnsureAuthenticated();
using var content = new MultipartFormDataContent();
using var streamContent = new StreamContent(fileStream);
streamContent.Headers.ContentType = new MediaTypeHeaderValue(GetContentType(fileName));
content.Add(streamContent, "file", fileName);
using var form = new MultipartFormDataContent { { new StringContent(content), "content" } };
// E2E channels: the blob is ciphertext, so the client declares the type and
// supplies the room-encrypted message content the server can't produce.
if (declaredType is not null)
content.Add(new StringContent(declaredType), "type");
if (encryptedContent is not null)
content.Add(new StringContent(encryptedContent), "content");
foreach (var att in attachments)
{
var streamContent = new StreamContent(att.Stream);
streamContent.Headers.ContentType = new MediaTypeHeaderValue(GetContentType(att.FileName));
form.Add(streamContent, "file", att.FileName);
// Encrypted channels: one kind + preview per file, in the same order, to keep
// the server's index alignment (empty preview string for non-images).
if (att.DeclaredKind is not null)
{
form.Add(new StringContent(att.DeclaredKind), "kind");
form.Add(new StringContent(att.EncryptedPreview ?? string.Empty), "preview");
}
}
var sizeQuery = size is not null ? $"?size={size}" : "";
using var response = await AuthenticatedRequestAsync(() =>
_http.PostAsync($"/api/channels/{Uri.EscapeDataString(channelName)}/upload{sizeQuery}", content));
_http.PostAsync($"/api/channels/{Uri.EscapeDataString(channelName)}/messages{sizeQuery}", form));
await EnsureSuccessAsync(response);
return await response.Content.ReadFromJsonAsync<MessageDto>();
}