feat(feed): add GCP IP ranges feed connector (allowlist / known infra)

This commit is contained in:
Guillaume BOURGEOIS
2026-07-13 12:08:49 +02:00
parent f7791402a3
commit 9cffefbb36
3 changed files with 158 additions and 0 deletions
@@ -0,0 +1,39 @@
id: feed_gcp_ipranges
name: GCP IP Ranges Feed
version: 1.0.0
description: "Google Cloud Platform IP ranges feed connector — pull the official GCP public IP range list and emit normalized IOCs (CIDR + type, with service/scope) for import into the Threat Indicator Manager. Intended as an allowlist / known-infrastructure feed (mark benign in TIM). Free, no authentication required; stdlib-only, no extra Python dependencies."
changelog: "1.0.0 — Initial release: fetch the GCP cloud.json (IPv4 + IPv6)."
category: feed
# GCP publishes its public IP ranges as a free JSON file over HTTPS.
config_schema:
properties:
service:
type: string
description: "Optional: only return prefixes for this GCP service (e.g. Google Cloud, Google APIs)"
insecure:
type: boolean
description: "Trust any TLS certificate (not secure)"
default: false
required: []
commands:
- id: fetch_indicators
name: feed-gcp-ipranges-fetch-indicators
description: "Fetch the GCP IP ranges and return normalized indicators."
risk: read
inputs_schema:
properties:
service: { type: string, description: "Filter by GCP service (overrides config)" }
max_indicators: { type: number, description: "Max indicators to return (0 = no limit, default 0)" }
required: []
outputs_schema: { properties: {} }
- id: test_connection
name: feed-gcp-ipranges-test-connection
description: "Verify the GCP IP ranges feed is reachable (used by the Test button)."
risk: read
inputs_schema:
properties: {}
required: []
outputs_schema: { properties: {} }
@@ -0,0 +1,70 @@
import json, os, sys, ssl, urllib.request, urllib.error
URL = "https://www.gstatic.com/ipranges/cloud.json"
def _cfg():
return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
def _inputs():
return json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
def _ctx(cfg):
if cfg.get("insecure"):
c = ssl.create_default_context()
c.check_hostname = False
c.verify_mode = ssl.CERT_NONE
return c
return None
def _get(url, cfg):
req = urllib.request.Request(
url, headers={"User-Agent": "Riposte-SOAR", "Accept": "application/json"}
)
with urllib.request.urlopen(req, timeout=120, context=_ctx(cfg)) as r:
return r.read()
def _run(fn):
try:
print(json.dumps(fn(_cfg(), _inputs())))
except urllib.error.HTTPError as e:
print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
sys.exit(1)
except Exception as e:
print(json.dumps({"error": str(e)}))
sys.exit(1)
def main(cfg, inputs):
service = inputs.get("service") or cfg.get("service")
raw = _get(URL, cfg)
data = json.loads(raw) if raw else {}
maxn = int(inputs.get("max_indicators") or 0)
out = []
for p in data.get("prefixes", []):
if not isinstance(p, dict):
continue
cidr = p.get("ipv4Prefix") or p.get("ipv6Prefix")
if not cidr:
continue
if service and p.get("service") != service:
continue
out.append({
"value": cidr,
"type": "cidr",
"service": p.get("service"),
"scope": p.get("scope"),
"provider": "gcp",
})
if maxn and len(out) >= maxn:
break
return {"source": "gcp:cloud", "count": len(out), "indicators": out}
_run(main)
@@ -0,0 +1,49 @@
import json, os, sys, ssl, urllib.request, urllib.error
URL = "https://www.gstatic.com/ipranges/cloud.json"
def _cfg():
return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
def _inputs():
return json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
def _ctx(cfg):
if cfg.get("insecure"):
c = ssl.create_default_context()
c.check_hostname = False
c.verify_mode = ssl.CERT_NONE
return c
return None
def _get(url, cfg):
req = urllib.request.Request(
url, headers={"User-Agent": "Riposte-SOAR", "Accept": "application/json"}
)
with urllib.request.urlopen(req, timeout=60, context=_ctx(cfg)) as r:
return r.read()
def _run(fn):
try:
print(json.dumps(fn(_cfg(), _inputs())))
except urllib.error.HTTPError as e:
print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
sys.exit(1)
except Exception as e:
print(json.dumps({"error": str(e)}))
sys.exit(1)
def main(cfg, inputs):
raw = _get(URL, cfg)
data = json.loads(raw) if raw else {}
n = len(data.get("prefixes", [])) if isinstance(data, dict) else 0
return {"ok": True, "sample_count": n, "creation_time": data.get("creationTime")}
_run(main)