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Outbound documents speak Mastodon's dialect under PrivaPub's route names

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Local text (Domain/Content/ContentRenderer): Markdig with raw HTML off and
autolinks, or plain text for API clients; then @user and @user@host are
resolved (locally or through WebFinger) into Mastodon's h-card markup and
#tags into hashtag links, skipping code, links and e-mail addresses. A
post stores the result, its mentions and its tags, and is delivered to
the mentioned actors and the parent's author as well as to followers.

Renderer:
- Mastodon's @context (toot, schema PropertyValue, discoverable,
  indexable, blurhash, focalPoint, featured, alsoKnownAs, movedTo) and
  FEP-2c59's webfinger;
- an actor's url is its HTML page, its fields are PropertyValue
  attachments, published is cut to the day and indexable is false;
- a note's content is the stored rendering; a title becomes name and a
  bold first line, a content warning without its own text is summarised
  by the title or "Content warning"; Mention and Hashtag tags, contentMap,
  updated, and to/cc by visibility.

Routes take the agreed names: /groupies, /stalking, /scribbles/{id},
/grunts/{id} (a Create resolves), /whispers/{id} for a DM's context. The
outbox is a collection with a first page, paged by max_id. A browser
asking for an actor or a note is redirected to /@user, and WebFinger's
profile-page points there.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
This commit is contained in:
thepraandClaude Opus 5.5 committed 2026-10-01 11:21:31 +02:00
1 parent e9529310fe
commit e54e17708f
9 files changed
+590 -74
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PrivaPub/Federation/Controllers/PeasantsController.cs
+72 -27
View File
@@ -41,26 +41,39 @@ namespace PrivaPub.Federation.Controllers
public async Task<IActionResult> GetActor(string actor, CancellationToken token)
{
var local = await _localActors.FindByUserName(actor, token);
return local is not { IsFederated: true } ? NotFound() : Activity(ActivityPubRenderer.Actor(local));
if (local is not { IsFederated: true })
return NotFound();
if (WantsHtml() && local.Kind != LocalActorKind.Application)
return Redirect(local.HtmlUrl);
return Activity(ActivityPubRenderer.Actor(local));
}
[HttpGet, Route("{actor}/anus")]
public async Task<IActionResult> Outbox(string actor, CancellationToken token)
public async Task<IActionResult> Outbox(string actor, [FromQuery] bool page, [FromQuery(Name = "max_id")] string maxId,
CancellationToken token)
{
var local = await _localActors.FindByUserName(actor, token);
if (local is not { IsFederated: true })
return NotFound();
var total = local.Kind == LocalActorKind.Group
? await DB.Default.CountAsync<PostEntity>(p => p.GroupId == local.Id && (p.Visibility == PostVisibility.Public || p.Visibility == PostVisibility.Unlisted), token)
: await DB.Default.CountAsync<PostEntity>(p => p.GroupUserId == local.Id && !p.IsFederatedCopy && (p.Visibility == PostVisibility.Public || p.Visibility == PostVisibility.Unlisted), token);
if (!page)
{
var total = local.Kind == LocalActorKind.Group
? await DB.Default.CountAsync<PostEntity>(p => p.GroupId == local.Id && !p.DeletedAt.HasValue
&& (p.Visibility == PostVisibility.Public || p.Visibility == PostVisibility.Unlisted), token)
: await DB.Default.CountAsync<PostEntity>(p => p.GroupUserId == local.Id && !p.IsFederatedCopy && !p.DeletedAt.HasValue
&& (p.Visibility == PostVisibility.Public || p.Visibility == PostVisibility.Unlisted), token);
return Activity(ActivityPubRenderer.OrderedCollection(local.Outbox, (int)total, default, $"{local.Outbox}?page=true"));
}
var latest = await (local.Kind == LocalActorKind.Group
? _dbEntities.Posts.Match(p => p.GroupId == local.Id && (p.Visibility == PostVisibility.Public || p.Visibility == PostVisibility.Unlisted))
: _dbEntities.Posts.Match(p => p.GroupUserId == local.Id && !p.IsFederatedCopy && (p.Visibility == PostVisibility.Public || p.Visibility == PostVisibility.Unlisted)))
.Sort(p => p.CreationDate, Order.Descending)
.Limit(OutboxSize)
.ExecuteAsync(token);
var query = local.Kind == LocalActorKind.Group
? _dbEntities.Posts.Match(p => p.GroupId == local.Id && !p.DeletedAt.HasValue
&& (p.Visibility == PostVisibility.Public || p.Visibility == PostVisibility.Unlisted))
: _dbEntities.Posts.Match(p => p.GroupUserId == local.Id && !p.IsFederatedCopy && !p.DeletedAt.HasValue
&& (p.Visibility == PostVisibility.Public || p.Visibility == PostVisibility.Unlisted));
if (!string.IsNullOrEmpty(maxId))
query.Match(f => f.Lt(p => p.ID, maxId));
var latest = await query.Sort(p => p.ID, Order.Descending).Limit(OutboxSize).ExecuteAsync(token);
var items = new List<JsonNode>();
foreach (var post in latest)
@@ -70,15 +83,15 @@ namespace PrivaPub.Federation.Controllers
items.Add(ActivityPubRenderer.Announce(local, post.ObjectURI, $"announce-{post.ID}"));
continue;
}
var group = string.IsNullOrEmpty(post.GroupId) ? default : await _localActors.FindById(LocalActorKind.Group, post.GroupId, token);
var note = ActivityPubRenderer.Note(post, local, group, post.InReplyToURI);
items.Add(ActivityPubRenderer.Create(local, note, $"create-{post.ID}"));
items.Add(await CreateFor(post, local, token));
}
return Activity(ActivityPubRenderer.OrderedCollection(local.Outbox, (int)total, items));
var pageId = string.IsNullOrEmpty(maxId) ? $"{local.Outbox}?page=true" : $"{local.Outbox}?page=true&max_id={maxId}";
var next = latest.Count == OutboxSize ? $"{local.Outbox}?page=true&max_id={latest[^1].ID}" : default;
return Activity(ActivityPubRenderer.OrderedCollectionPage(pageId, local.Outbox, items, next, default));
}
[HttpGet, Route("{actor}/followers")]
[HttpGet, Route("{actor}/groupies")]
public async Task<IActionResult> Followers(string actor, CancellationToken token)
{
var local = await _localActors.FindByUserName(actor, token);
@@ -89,32 +102,37 @@ namespace PrivaPub.Federation.Controllers
return Activity(ActivityPubRenderer.OrderedCollection(local.Followers, (int)count, default));
}
[HttpGet, Route("{actor}/following")]
[HttpGet, Route("{actor}/stalking")]
public async Task<IActionResult> Following(string actor, CancellationToken token)
{
var local = await _localActors.FindByUserName(actor, token);
return local is not { IsFederated: true } ? NotFound() : Activity(ActivityPubRenderer.OrderedCollection(local.Following, 0, Enumerable.Empty<JsonNode>()));
return local is not { IsFederated: true } ? NotFound() : Activity(ActivityPubRenderer.OrderedCollection(local.Following, 0, default));
}
[HttpGet, Route("{actor}/posts/{postId}")]
[HttpGet, Route("{actor}/scribbles/{postId}")]
public async Task<IActionResult> Post(string actor, string postId, CancellationToken token)
{
var local = await _localActors.FindByUserName(actor, token);
if (local == default || local.Kind != LocalActorKind.Person)
return NotFound();
var post = await _dbEntities.Posts
.Match(p => p.ID == postId && p.GroupUserId == local.Id && !p.IsFederatedCopy && (p.Visibility == PostVisibility.Public || p.Visibility == PostVisibility.Unlisted))
.ExecuteFirstAsync(token);
var (local, post) = await PublicPost(actor, postId, token);
if (post == default)
return NotFound();
if (WantsHtml())
return Redirect(local.PostHtmlUrl(post.ID));
var group = string.IsNullOrEmpty(post.GroupId) ? default : await _localActors.FindById(LocalActorKind.Group, post.GroupId, token);
var note = ActivityPubRenderer.Note(post, local, group, post.InReplyToURI);
note["@context"] = ActivityPubRenderer.ActivityStreams;
note["@context"] = ActivityPubRenderer.Context();
return Activity(note);
}
[HttpGet, Route("{actor}/grunts/{activityId}")]
public async Task<IActionResult> Grunt(string actor, string activityId, CancellationToken token)
{
if (!activityId.StartsWith("create-", StringComparison.Ordinal))
return NotFound();
var (local, post) = await PublicPost(actor, activityId["create-".Length..], token);
return post == default ? NotFound() : Activity(await CreateFor(post, local, token));
}
[HttpPost, Route("{actor}/mouth"), EnableRateLimiting(RateLimiting.Inbox)]
public async Task<IActionResult> Inbox(string actor, CancellationToken token)
{
@@ -132,6 +150,33 @@ namespace PrivaPub.Federation.Controllers
public async Task<IActionResult> SharedInbox(CancellationToken token) =>
Answer(await _inbox.Receive(Request, default, token));
async Task<(LocalActor Actor, PostEntity Post)> PublicPost(string actor, string postId, CancellationToken token)
{
var local = await _localActors.FindByUserName(actor, token);
if (local is not { IsFederated: true, Kind: LocalActorKind.Person })
return default;
var post = await _dbEntities.Posts
.Match(p => p.ID == postId && p.GroupUserId == local.Id && !p.IsFederatedCopy && !p.DeletedAt.HasValue
&& (p.Visibility == PostVisibility.Public || p.Visibility == PostVisibility.Unlisted))
.ExecuteFirstAsync(token);
return (local, post);
}
async Task<JsonObject> CreateFor(PostEntity post, LocalActor author, CancellationToken token)
{
var group = string.IsNullOrEmpty(post.GroupId) ? default : await _localActors.FindById(LocalActorKind.Group, post.GroupId, token);
var note = ActivityPubRenderer.Note(post, author, group, post.InReplyToURI);
return ActivityPubRenderer.Create(author, note, $"create-{post.ID}");
}
bool WantsHtml()
{
var accept = Request.Headers.Accept.ToString();
return accept.Contains("text/html", StringComparison.OrdinalIgnoreCase)
&& !accept.Contains("activity+json", StringComparison.OrdinalIgnoreCase)
&& !accept.Contains("ld+json", StringComparison.OrdinalIgnoreCase);
}
IActionResult Answer(InboxResult result)
{
if (result.Error != default)
PrivaPub/Federation/Controllers/WellKnownController.cs
+6 -4
View File
@@ -49,10 +49,12 @@ namespace PrivaPub.Federation.Controllers
var document = new JsonObject
{
["subject"] = $"acct:{actor.Handle}",
["aliases"] = new JsonArray(actor.Uri),
["links"] = new JsonArray(
new JsonObject { ["rel"] = "self", ["type"] = "application/activity+json", ["href"] = actor.Uri },
new JsonObject { ["rel"] = "http://webfinger.net/rel/profile-page", ["type"] = "text/html", ["href"] = actor.Uri })
["aliases"] = actor.Kind == LocalActorKind.Application ? new JsonArray(actor.Uri) : new JsonArray(actor.HtmlUrl, actor.Uri),
["links"] = actor.Kind == LocalActorKind.Application
? new JsonArray(new JsonObject { ["rel"] = "self", ["type"] = "application/activity+json", ["href"] = actor.Uri })
: new JsonArray(
new JsonObject { ["rel"] = "http://webfinger.net/rel/profile-page", ["type"] = "text/html", ["href"] = actor.HtmlUrl },
new JsonObject { ["rel"] = "self", ["type"] = "application/activity+json", ["href"] = actor.Uri })
};
return Content(document.ToJsonString(), "application/jrd+json; charset=utf-8");
}