rapid7-insightidr 1.14.6: narrow a log result by field, no query syntax

query_log_set takes only="field=value[, …]", applied to the events' fields
after the search (case ignored), and says how many matched before it. Static
runs a second summary of the same query restricted to what the alert is about
— for a "new assets" alert, the new authentications — and names their
destination assets: the first real run summarized 978 events but left the 64
new ones mixed in.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015RhL2gy6Sx6Y3FEsyBE3mZ

integrations/rapid7-insightidr/scripts/query_log_set.py

@@ -172,6 +172,26 @@ def _fields(e):
     return flat
 
 
+def _parse_only(v):
+    """"field=value, field2=value2" -> {field: value}. Applied to the events'
+    fields after the search, so narrowing a result needs no query syntax."""
+    out = {}
+    for part in str(v or "").split(","):
+        if "=" in part:
+            k, val = part.split("=", 1)
+            if k.strip():
+                out[k.strip()] = val.strip().strip("\"'")
+    return out
+
+
+def _matches(fields, only):
+    """Every condition holds, comparing as text and ignoring case."""
+    for k, want in only.items():
+        if str(fields.get(k, "")).lower() != want.lower():
+            return False
+    return True
+
+
 def _summarize(events, limit):
     """Counts instead of lines: per field, its most frequent values.
 
@@ -283,9 +303,17 @@ def run():
     # No fallback log id: a log set spans several logs and every event names its own.
     events = _identify(_collect(first, limit), "", inp.get("detection_name"))
     window = "%s to %s" % (_iso(start_time), _iso(end_time))
+    only = _parse_only(inp.get("only"))
+    matched_before_filter = len(events)
+    if only:
+        events = [e for e in events if _matches(_fields(e), only)]
     if str(inp.get("summarize") or "").strip().lower() in ("1", "true", "yes"):
         out = _summarize(events, limit)
+        out["truncated"] = matched_before_filter >= limit
         out.update({"from": start_time, "to": end_time, "window": window})
+        if only:
+            out["only"] = only
+            out["matched_before_only"] = matched_before_filter
         print(json.dumps(out))
         return
     print(json.dumps({"events": events, "count": len(events), "from": start_time, "to": end_time,