mirror of
https://github.com/google/nomulus
synced 2026-07-19 14:32:44 +00:00
Weimin Yu
7e0489e5f9
In FlowReporter, we extract TLDs from EPP domain commands and log them under 'tld' and 'tlds' metadata fields to generate ICANN activity reports. Previously, invalid or extremely long TLD names (such as email addresses or long domain labels in non-validated XML payloads) could break downstream log parsing. To prevent this issue, this change does the following: 1. Java Sanitization: Introduces `toLogSafeLabel(...)` in `DomainFlowUtils`, which converts ASCII to lowercase, replaces any character outside of `[a-z0-9.-]` with `-`, and limits the length to 63 characters (appending '...' if truncated). FlowReporter now uses this method on guessed TLDs before logging them. 2. SQL Modernization: Upgrades `epp_metrics.sql` and `epp_metrics_test.sql` to use BigQuery's native `JSON_EXTRACT_STRING_ARRAY(json, '$.tlds')` instead of the legacy `SPLIT(REGEXP_EXTRACT(JSON_EXTRACT(...)))` workaround. Because the native function extracts clean string elements, it removes the need to strip quotation marks with additional regexes and prevents parsing failures on commas, spaces, or nested structures. SQL change tested in BigQuery. BUG=http://b/535230985