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fix(dm): keep 1-on-1 dm_members on tombstone, drop only group membership (S1)

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This commit is contained in:
Jannis Braun
2026-07-02 15:32:04 +02:00
parent 411e9baaa9
commit e5a1cc9506
4 changed files with 92 additions and 10 deletions
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packages/server/test/federation-identity-deletion.test.ts
+9 -5
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@@ -317,7 +317,7 @@ describe('Federation identity deletion — server suite', () => {
homeInspect.close();
});
it('#3 soft mode: tombstone shape, messages/reactions retained, dm membership cleared', async () => {
it('#3 soft mode: tombstone shape, messages/reactions retained, 1-on-1 dm membership kept', async () => {
const fx = await setupFullDeletionFixture('t3');
const { openInspector } = await import('./helpers/dbInspect.js');
@@ -358,7 +358,8 @@ describe('Federation identity deletion — server suite', () => {
expect(remote.spaceMembersForUser(fx.remoteUser.id)).toEqual([]);
expect(remote.messagesAuthored(fx.remoteUser.id).length).toBe(2); // RETAINED
expect(remote.reactionsForUser(fx.remoteUser.id).length).toBe(2); // RETAINED
expect(remote.dmMembership(fx.remoteUser.id)).toEqual([]); // dm_members always cleared
// 1-on-1 DM membership is KEPT (anonymized) so the thread survives as "Deleted User"
expect(remote.dmMembership(fx.remoteUser.id).map(r => r.dmChannelId)).toEqual([fx.dmChannelId]);
expect(remote.dmChannelExists(fx.dmChannelId)).toBe(true); // other party still member
remote.close();
@@ -394,7 +395,8 @@ describe('Federation identity deletion — server suite', () => {
expect(remote.messagesAuthored(fx.remoteUser.id).length).toBe(0); // PURGED
expect(remote.reactionsForUser(fx.remoteUser.id).length).toBe(0); // PURGED
expect(remote.dmMembership(fx.remoteUser.id)).toEqual([]);
// 1-on-1 DM membership is KEPT (anonymized) so the thread survives as "Deleted User"
expect(remote.dmMembership(fx.remoteUser.id).map(r => r.dmChannelId)).toEqual([fx.dmChannelId]);
// 1-on-1 DM with another live participant SURVIVES (other party still member)
expect(remote.dmChannelExists(fx.dmChannelId)).toBe(true);
remote.close();
@@ -897,7 +899,8 @@ describe('Federation identity deletion — all-remotes fan-out', () => {
expect(ins.spaceMembersForUser(fixtures[i].remoteUser.id)).toEqual([]);
expect(ins.messagesAuthored(fixtures[i].remoteUser.id).length).toBe(2); // RETAINED
expect(ins.reactionsForUser(fixtures[i].remoteUser.id).length).toBe(2); // RETAINED
expect(ins.dmMembership(fixtures[i].remoteUser.id)).toEqual([]);
// 1-on-1 DM membership is KEPT (anonymized) so the thread survives as "Deleted User"
expect(ins.dmMembership(fixtures[i].remoteUser.id).map(r => r.dmChannelId)).toEqual([fixtures[i].dmChannelId]);
expect(ins.dmChannelExists(fixtures[i].dmChannelId)).toBe(true);
ins.close();
});
@@ -958,7 +961,8 @@ describe('Federation identity deletion — all-remotes fan-out', () => {
expect(after!.username).toBe(`!deleted:${fixtures[i].remoteUser.id}`);
expect(ins.messagesAuthored(fixtures[i].remoteUser.id).length).toBe(0); // PURGED
expect(ins.reactionsForUser(fixtures[i].remoteUser.id).length).toBe(0); // PURGED
expect(ins.dmMembership(fixtures[i].remoteUser.id)).toEqual([]);
// 1-on-1 DM membership is KEPT (anonymized) so the thread survives as "Deleted User"
expect(ins.dmMembership(fixtures[i].remoteUser.id).map(r => r.dmChannelId)).toEqual([fixtures[i].dmChannelId]);
// Observer remains a member, so DM channel survives.
expect(ins.dmChannelExists(fixtures[i].dmChannelId)).toBe(true);
ins.close();