✨ Fully rewrite relay

2025-06-04 12:43:23 +02:00 · 2025-06-04 12:43:23 +02:00 · 20ffbd4c6d
commit 20ffbd4c6d
parent 190e38dfc1
47 changed files with 3489 additions and 128 deletions
--- a/src/dbEvents/deletionEvent.ts
+++ b/src/dbEvents/deletionEvent.ts
@ -0,0 +1,143 @@
+import type { Database } from '@db/sqlite';
+import type * as nostrTools from '@nostr/tools';
+import { isAddressableEvent, isReplaceableEvent } from '../utils/eventTypes.ts';
+import { log } from '../utils/logs.ts';
+import { parseATagQuery } from '../utils/parseATagQuery.ts';
+import { sql } from '../utils/queries.ts';
+
+export function handleDeletionEvent(
+  db: Database,
+  deletionEvent: nostrTools.VerifiedEvent,
+  encryptedEvent: nostrTools.VerifiedEvent,
+  ccnPubkey: string,
+): void {
+  log.debug('start', {
+    tag: 'handleDeletionEvent',
+    decryptId: deletionEvent.id,
+    encryptedId: encryptedEvent.id,
+    kind: deletionEvent.kind,
+    ccnPubkey,
+  });
+
+  try {
+    db.run('BEGIN TRANSACTION');
+    log.debug('begin transaction', { tag: 'handleDeletionEvent' });
+
+    sql`
+      INSERT INTO events (id, original_id, pubkey, created_at, kind, content, sig, first_seen, ccn_pubkey) VALUES (
+        ${deletionEvent.id},
+        ${encryptedEvent.id},
+        ${deletionEvent.pubkey},
+        ${deletionEvent.created_at},
+        ${deletionEvent.kind},
+        ${deletionEvent.content},
+        ${deletionEvent.sig},
+        unixepoch(),
+        ${ccnPubkey}
+      )
+    `(db);
+
+    if (deletionEvent.tags) {
+      for (let i = 0; i < deletionEvent.tags.length; i++) {
+        const tag = sql`
+          INSERT INTO event_tags(event_id, tag_name, tag_index) VALUES (
+            ${deletionEvent.id},
+            ${deletionEvent.tags[i][0]},
+            ${i}
+          ) RETURNING tag_id
+        `(db)[0];
+
+        for (let j = 1; j < deletionEvent.tags[i].length; j++) {
+          sql`
+            INSERT INTO event_tags_values(tag_id, value_position, value) VALUES (
+              ${tag.tag_id},
+              ${j},
+              ${deletionEvent.tags[i][j]}
+            )
+          `(db);
+        }
+      }
+    }
+
+    for (const tag of deletionEvent.tags) {
+      if (tag[0] === 'e' && tag[1]) {
+        sql`
+          UPDATE events
+          SET deleted = 1
+          WHERE id = ${tag[1]}
+            AND pubkey = ${deletionEvent.pubkey}
+            AND ccn_pubkey = ${ccnPubkey}
+        `(db);
+        log.debug('deleted event by id', {
+          tag: 'handleDeletionEvent',
+          eventId: tag[1],
+        });
+      } else if (tag[0] === 'a' && tag[1]) {
+        const { kind, pubkey, dTag } = parseATagQuery(tag[1]);
+        if (!kind || !pubkey) continue;
+        if (pubkey !== deletionEvent.pubkey) continue;
+        if (isReplaceableEvent(kind)) {
+          sql`
+            UPDATE events
+            SET deleted = 1
+            WHERE kind = ${kind}
+              AND pubkey = ${pubkey}
+              AND ccn_pubkey = ${ccnPubkey}
+              AND created_at <= ${deletionEvent.created_at}
+          `(db);
+          log.debug('deleted replaceable event', {
+            tag: 'handleDeletionEvent',
+            kind,
+            pubkey,
+          });
+        } else if (isAddressableEvent(kind) && dTag) {
+          sql`
+            UPDATE events
+            SET deleted = 1
+            WHERE kind = ${kind}
+              AND pubkey = ${pubkey}
+              AND ccn_pubkey = ${ccnPubkey}
+              AND created_at <= ${deletionEvent.created_at}
+              AND id IN (
+                SELECT event_id FROM event_tags
+                WHERE tag_name = 'd'
+                  AND tag_id IN (
+                    SELECT tag_id FROM event_tags_values
+                    WHERE value_position = 1 AND value = ${dTag}
+                  )
+              )
+          `(db);
+          log.debug('deleted addressable event', {
+            tag: 'handleDeletionEvent',
+            kind,
+            pubkey,
+            dTag,
+          });
+        }
+      } else if (tag[0] === 'k') {
+        sql`
+          UPDATE events
+          SET deleted = 1
+          WHERE kind = ${tag[1]}
+            AND pubkey = ${deletionEvent.pubkey}
+            AND ccn_pubkey = ${ccnPubkey}
+            AND created_at <= ${deletionEvent.created_at}
+        `(db);
+        log.debug('deleted events of kind', {
+          tag: 'handleDeletionEvent',
+          kind: tag[1],
+        });
+      }
+    }
+    db.run('COMMIT TRANSACTION');
+    log.debug('committed transaction', { tag: 'handleDeletionEvent' });
+  } catch (e) {
+    db.run('ROLLBACK TRANSACTION');
+    log.error('transaction rolled back', {
+      tag: 'handleDeletionEvent',
+      error: e,
+    });
+    throw e;
+  }
+  log.debug('end', { tag: 'handleDeletionEvent', id: deletionEvent.id });
+}