From 623c81d406a86d6cfd37b9fec2c618c08656a8b7 Mon Sep 17 00:00:00 2001
From: Robert Rapp <robert.rapp@mindboost.team>
Date: Mon, 19 Jan 2026 19:17:05 +0100
Subject: [PATCH] fix: fallback PeeringDB info_type when empty

---
 asn-updater/update.py | 55 ++++++++++++++++++++++++++++---------------
 1 file changed, 36 insertions(+), 19 deletions(-)

diff --git a/asn-updater/update.py b/asn-updater/update.py
index 806489d..6a4ed4f 100644
--- a/asn-updater/update.py
+++ b/asn-updater/update.py
@@ -52,10 +52,10 @@ def pdb_headers():
     # PeeringDB API Key (optional)
     return {"Accept": "application/json", "Authorization": f"Api-Key {PDB_API_KEY}"}
 
-def fetch_pdb_page(skip: int):
+def fetch_pdb_page(skip: int, info_type: str):
     url = f"{PDB_BASE}/api/net"
     params = {
-        "info_type": INFO_TYPE,
+        "info_type": info_type,
         "limit": LIMIT,
         "skip": skip,
         "fields": "asn,status,info_type",
@@ -65,21 +65,37 @@ def fetch_pdb_page(skip: int):
     j = r.json()
     return j.get("data", [])
 
-def update_nren_asns() -> None:
+def update_nren_asns() -> str:
+    info_types = [INFO_TYPE]
+    # Alternate label seen in PeeringDB deployments.
+    if INFO_TYPE != "Research and Education":
+        info_types.append("Research and Education")
+    if INFO_TYPE != "Educational/Research":
+        info_types.append("Educational/Research")
+
     asns = set()
-    skip = 0
-    while True:
-        data = fetch_pdb_page(skip)
-        for obj in data:
-            if obj.get("status") != "ok":
-                continue
-            asn = obj.get("asn")
-            if isinstance(asn, int) and asn > 0:
-                asns.add(asn)
-        if len(data) < LIMIT:
+    used_info_type = INFO_TYPE
+    for info_type in info_types:
+        asns.clear()
+        skip = 0
+        while True:
+            data = fetch_pdb_page(skip, info_type)
+            for obj in data:
+                if obj.get("status") != "ok":
+                    continue
+                asn = obj.get("asn")
+                if isinstance(asn, int) and asn > 0:
+                    asns.add(asn)
+            if len(data) < LIMIT:
+                break
+            skip += LIMIT
+            time.sleep(1.1)  # sehr konservativ
+        if asns:
+            used_info_type = info_type
             break
-        skip += LIMIT
-        time.sleep(1.1)  # sehr konservativ
+
+    if not asns:
+        print(f"[warn] no ASNs found for info_type(s)={info_types}")
 
     out_txt = os.path.join(OUT_DIR, "nren_asns.txt")
     with tempfile.NamedTemporaryFile("w", delete=False, dir=OUT_DIR) as f:
@@ -88,11 +104,12 @@ def update_nren_asns() -> None:
         tmp_path = f.name
     os.replace(tmp_path, out_txt)
     os.chmod(out_txt, 0o644)
+    return used_info_type
 
-def write_meta():
+def write_meta(info_type: str):
     meta = {
         "updated_at_unix": int(time.time()),
-        "info_type": INFO_TYPE,
+        "info_type": info_type,
         "pdb_base": PDB_BASE,
     }
     with open(os.path.join(OUT_DIR, "metadata.json"), "w") as f:
@@ -102,8 +119,8 @@ def write_meta():
 def main():
     os.makedirs(OUT_DIR, exist_ok=True)
     download_maxmind_mmdb()
-    update_nren_asns()
-    write_meta()
+    used_info_type = update_nren_asns()
+    write_meta(used_info_type)
     print("[ok] updated mmdb + nren_asns")
 
 if __name__ == "__main__":