feat(feed-taxii2): new generic TAXII 2.1 / STIX feed connector

Pulls STIX 2.x indicators from any TAXII 2.1 server, parses the STIX patterns into normalized IOCs {value,type} for TIM import. list-collections + fetch. Basic/bearer/none auth, stdlib-only. py_compile clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-12 22:43:17 +02:00
parent 4f94b59e17
commit c779c38dab
4 changed files with 358 additions and 0 deletions
@@ -0,0 +1,89 @@
+import json, os, sys, re, ssl, base64, urllib.parse, urllib.request, urllib.error
+
+
+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 _root(cfg):
+    return str(cfg.get("api_root_url", "")).rstrip("/")
+
+
+def _headers(cfg):
+    h = {"Accept": "application/taxii+json;version=2.1", "User-Agent": "Riposte-SOAR"}
+    at = str(cfg.get("auth_type") or "basic").lower()
+    if at == "basic":
+        raw = str(cfg.get("username", "")) + ":" + str(cfg.get("password", ""))
+        h["Authorization"] = "Basic " + base64.b64encode(raw.encode("utf-8")).decode("ascii")
+    elif at == "bearer":
+        h["Authorization"] = "Bearer " + str(cfg.get("password", ""))
+    return h
+
+
+def request(path, cfg, params=None):
+    url = _root(cfg) + path
+    if params:
+        clean = {k: v for k, v in params.items() if v not in (None, "")}
+        if clean:
+            url += "?" + urllib.parse.urlencode(clean)
+    req = urllib.request.Request(url, headers=_headers(cfg), method="GET")
+    with urllib.request.urlopen(req, timeout=120, context=_ctx(cfg)) as r:
+        raw = r.read()
+        return json.loads(raw) if raw else {}
+
+
+# STIX pattern parsing: extract stix object type + value from an indicator pattern
+# e.g. [ipv4-addr:value = '1.2.3.4']  ,  [domain-name:value = 'bad.com']  ,
+#      [file:hashes.'SHA-256' = 'abc...']  ,  [url:value = 'http://x']
+_PAT = re.compile(r"(\w[\w-]*):(?:value|hashes\.'?[\w:-]+'?)\s*=\s*'([^']+)'")
+
+_STIX_TYPE = {
+    "ipv4-addr": "ip", "ipv6-addr": "ip",
+    "domain-name": "domain",
+    "url": "url",
+    "email-addr": "email", "email-message": "email",
+    "file": "hash",
+    "user-account": "user",
+}
+
+
+def parse_pattern(pattern):
+    out = []
+    for m in _PAT.finditer(pattern or ""):
+        stix_type, value = m.group(1), m.group(2)
+        t = _STIX_TYPE.get(stix_type)
+        if t:
+            out.append({"value": value, "type": t})
+    return out
+
+
+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):
+    request("/collections/", cfg)
+    return {"ok": True}
+
+
+_run(main)