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[feature] Hashtag federation (in/out), hashtag client API endpoints (#2032)

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* update go-fed

* do the things

* remove unused columns from tags

* update to latest lingo from main

* further tag shenanigans

* serve stub page at tag endpoint

* we did it lads

* tests, oh tests, ohhh tests, oh tests (doo doo doo doo)

* swagger docs

* document hashtag usage + federation

* instanceGet

* don't bother parsing tag href

* rename whereStartsWith -> whereStartsLike

* remove GetOrCreateTag

* dont cache status tag timelineability
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tobi 2023-07-31 15:47:35 +02:00 • committed by GitHub
commit 2796a2e82f
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69 changed files with 2536 additions and 482 deletions
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54
internal/federation/dereferencing/status.go
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@ -288,7 +288,10 @@ func (d *deref) enrichStatus(
return nil, nil, gtserror.Newf("error populating mentions for status %s: %w", uri, err)
}
// TODO: populateStatusTags()
// Ensure the status' tags are populated.
if err := d.fetchStatusTags(ctx, requestUser, latestStatus); err != nil {
return nil, nil, gtserror.Newf("error populating tags for status %s: %w", uri, err)
}
// Ensure the status' media attachments are populated, passing in existing to check for changes.
if err := d.fetchStatusAttachments(ctx, tsport, status, latestStatus); err != nil {
@ -400,6 +403,55 @@ func (d *deref) fetchStatusMentions(ctx context.Context, requestUser string, exi
return nil
}
func (d *deref) fetchStatusTags(ctx context.Context, requestUser string, status *gtsmodel.Status) error {
// Allocate new slice to take the yet-to-be determined tag IDs.
status.TagIDs = make([]string, len(status.Tags))
for i := range status.Tags {
placeholder := status.Tags[i]
// Look for existing tag with this name first.
tag, err := d.state.DB.GetTagByName(ctx, placeholder.Name)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
log.Errorf(ctx, "db error getting tag %s: %v", tag.Name, err)
continue
}
// No tag with this name yet, create it.
if tag == nil {
tag = &gtsmodel.Tag{
ID: id.NewULID(),
Name: placeholder.Name,
}
if err := d.state.DB.PutTag(ctx, tag); err != nil {
log.Errorf(ctx, "db error putting tag %s: %v", tag.Name, err)
continue
}
}
// Set the *new* tag and ID.
status.Tags[i] = tag
status.TagIDs[i] = tag.ID
}
// Remove any tag we couldn't get or create.
for i := 0; i < len(status.TagIDs); {
if status.TagIDs[i] == "" {
// This is a failed tag population, likely due
// to some database peculiarity / race condition.
copy(status.Tags[i:], status.Tags[i+1:])
copy(status.TagIDs[i:], status.TagIDs[i+1:])
status.Tags = status.Tags[:len(status.Tags)-1]
status.TagIDs = status.TagIDs[:len(status.TagIDs)-1]
continue
}
i++
}
return nil
}
func (d *deref) fetchStatusAttachments(ctx context.Context, tsport transport.Transport, existing, status *gtsmodel.Status) error {
// Allocate new slice to take the yet-to-be fetched attachment IDs.
status.AttachmentIDs = make([]string, len(status.Attachments))