fix gitea db

gitea/delete-users-by-creation-date.sh

@@ -0,0 +1,54 @@
+#!/usr/bin/env bash
+# Mark Gitea users for deletion by creation date (e.g. after a hack/spam wave).
+# Users created ON or AFTER the cutoff date will be marked inactive; then run
+# Gitea admin task "Delete all unactivated accounts" to remove them.
+#
+# Usage:
+#   ./delete-users-by-creation-date.sh 2025-02-01
+#   ./delete-users-by-creation-date.sh "2025-02-10 14:00"
+#   ./delete-users-by-creation-date.sh 2025-02-01 --whitelist "admin,myuser"
+#
+# Steps after running this script:
+# 1. Backup your Gitea database.
+# 2. Run the generated SQL against your DB (PostgreSQL or SQLite).
+# 3. In Gitea: Site Administration -> Maintenance -> "Delete all unactivated accounts".
+# 4. Consider DISABLE_REGISTRATION = true in app.ini if registration was abused.
+
+set -e
+CUTOFF_DATE="${1:?Usage: $0 YYYY-MM-DD [--whitelist user1,user2]}"
+WHITELIST=""
+if [[ "$2" == "--whitelist" && -n "$3" ]]; then
+  WHITELIST="$3"
+fi
+
+# Convert cutoff to Unix timestamp (GNU date on Linux)
+CUTOFF_UNIX=$(date -d "$CUTOFF_DATE" +%s 2>/dev/null) || true
+if [[ -z "$CUTOFF_UNIX" ]]; then
+  echo "Invalid date: $CUTOFF_DATE (use YYYY-MM-DD or \"YYYY-MM-DD HH:MM\")"
+  echo "Run this script on the Gitea server (Linux) or pass the Unix timestamp manually."
+  exit 1
+fi
+
+echo "# Cutoff: $CUTOFF_DATE -> Unix $CUTOFF_UNIX (users created on or after this will be marked inactive)"
+echo "# Backup your database before running any of the below."
+echo ""
+
+if [[ -n "$WHITELIST" ]]; then
+  # Build NOT IN list for SQL
+  WL=$(echo "$WHITELIST" | sed "s/,/','/g" | sed "s/^/'/; s/$/'/")
+  WHERE_EXTRA=" AND name NOT IN ($WL)"
+  WHERE_EXTRA_PG=" AND name NOT IN ($WL)"
+else
+  WHERE_EXTRA=""
+  WHERE_EXTRA_PG=""
+fi
+
+echo "# --- PostgreSQL (table: public.user) ---"
+echo "UPDATE public.user SET is_active = false WHERE created_unix >= $CUTOFF_UNIX${WHERE_EXTRA_PG};"
+echo ""
+
+echo "# --- SQLite / MySQL (table: user) ---"
+echo "UPDATE user SET is_active = 0 WHERE created_unix >= $CUTOFF_UNIX${WHERE_EXTRA};"
+echo ""
+
+echo "# Then in Gitea: Site Administration -> Maintenance -> 'Delete all unactivated accounts'"