feat(feed): add generic RSS/Atom IOC feed connector (URL/IP/hash extraction, defang-aware)
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id: feed_rss
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name: RSS/Atom IOC Feed
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version: 1.0.0
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description: "Generic RSS/Atom threat-intel feed connector — fetch a security blog or advisory feed and extract indicators (URLs, IPs and file hashes, including common defanged forms like hxxp and 1[.]2[.]3[.]4) from the item titles and bodies, emitting normalized IOCs for import into the Threat Indicator Manager. One connector, many feeds. Optional bearer token; stdlib-only, no extra Python dependencies."
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changelog: "1.0.0 — Initial release: extract URL/IP/hash IOCs from an RSS or Atom feed."
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category: feed
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# The feed is fetched over HTTP(S) from feed_url and parsed as RSS or Atom XML.
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config_schema:
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properties:
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feed_url:
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type: string
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description: "URL of the RSS/Atom feed"
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api_token:
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type: string
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description: "Optional bearer token (if the feed requires auth)"
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x-soar-sensitive: true
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insecure:
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type: boolean
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description: "Trust any TLS certificate (not secure)"
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default: false
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required:
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- feed_url
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commands:
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- id: fetch_indicators
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name: feed-rss-fetch-indicators
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description: "Fetch the RSS/Atom feed and return IOCs extracted from its items."
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risk: read
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inputs_schema:
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properties:
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max_indicators: { type: number, description: "Max indicators to return (0 = no limit, default 0)" }
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required: []
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outputs_schema: { properties: {} }
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- id: test_connection
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name: feed-rss-test-connection
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description: "Verify the feed URL returns parseable XML (used by the Test button)."
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risk: read
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inputs_schema:
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properties: {}
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required: []
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outputs_schema: { properties: {} }
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import json, os, sys, re, ssl, urllib.request, urllib.error
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import xml.etree.ElementTree as ET
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_URL = re.compile(r"https?://[^\s<>\"'\]\)]+", re.I)
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_IP = re.compile(r"\b(?:\d{1,3}\.){3}\d{1,3}\b")
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_HASH = re.compile(r"\b[a-fA-F0-9]{64}\b|\b[a-fA-F0-9]{40}\b|\b[a-fA-F0-9]{32}\b")
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def _defang(t):
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for a, b in (("[.]", "."), ("(.)", "."), ("{.}", "."), ("[dot]", "."),
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("(dot)", "."), ("[:]", ":"), ("[://]", "://"),
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("hxxp", "http"), ("hXXp", "http"), ("hxxps", "https")):
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t = t.replace(a, b)
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return t
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def _valid_ip(ip):
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parts = ip.split(".")
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return len(parts) == 4 and all(p.isdigit() and 0 <= int(p) <= 255 for p in parts)
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def _localname(tag):
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return tag.split("}")[-1] if "}" in tag else tag
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def _cfg():
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return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
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def _inputs():
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return json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
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def _ctx(cfg):
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if cfg.get("insecure"):
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c = ssl.create_default_context()
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c.check_hostname = False
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c.verify_mode = ssl.CERT_NONE
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return c
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return None
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def _headers(cfg):
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h = {"User-Agent": "Riposte-SOAR", "Accept": "application/rss+xml, application/xml, text/xml"}
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t = cfg.get("api_token")
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if t:
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h["Authorization"] = "Bearer " + str(t)
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return h
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def _get(url, cfg):
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req = urllib.request.Request(url, headers=_headers(cfg))
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with urllib.request.urlopen(req, timeout=120, context=_ctx(cfg)) as r:
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return r.read()
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def _run(fn):
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try:
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print(json.dumps(fn(_cfg(), _inputs())))
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except urllib.error.HTTPError as e:
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print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
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sys.exit(1)
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except Exception as e:
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print(json.dumps({"error": str(e)}))
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sys.exit(1)
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def main(cfg, inputs):
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url = cfg.get("feed_url")
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if not url:
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raise Exception("feed_url is required")
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raw = _get(url, cfg)
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root = ET.fromstring(raw)
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texts = []
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for el in root.iter():
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if _localname(el.tag) in ("item", "entry"):
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texts.append(_defang(" ".join(el.itertext())))
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blob = " ".join(texts) if texts else _defang(ET.tostring(root, encoding="unicode"))
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maxn = int(inputs.get("max_indicators") or 0)
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seen = set()
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out = []
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def add(value, typ):
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key = (typ, value)
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if key in seen:
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return
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seen.add(key)
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out.append({"value": value, "type": typ})
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for m in _URL.finditer(blob):
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add(m.group(0).rstrip(".,);]’"), "url")
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for m in _HASH.finditer(blob):
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add(m.group(0), "hash")
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for m in _IP.finditer(blob):
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v = m.group(0)
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if _valid_ip(v):
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add(v, "ip")
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if maxn and len(out) > maxn:
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out = out[:maxn]
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return {"source": url, "count": len(out), "indicators": out}
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_run(main)
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@@ -0,0 +1,61 @@
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import json, os, sys, ssl, urllib.request, urllib.error
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import xml.etree.ElementTree as ET
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def _localname(tag):
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return tag.split("}")[-1] if "}" in tag else tag
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def _cfg():
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return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
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def _inputs():
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return json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
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def _ctx(cfg):
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if cfg.get("insecure"):
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c = ssl.create_default_context()
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c.check_hostname = False
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c.verify_mode = ssl.CERT_NONE
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return c
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return None
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def _headers(cfg):
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h = {"User-Agent": "Riposte-SOAR", "Accept": "application/rss+xml, application/xml, text/xml"}
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t = cfg.get("api_token")
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if t:
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h["Authorization"] = "Bearer " + str(t)
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return h
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def _get(url, cfg):
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req = urllib.request.Request(url, headers=_headers(cfg))
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with urllib.request.urlopen(req, timeout=60, context=_ctx(cfg)) as r:
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return r.read()
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def _run(fn):
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try:
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print(json.dumps(fn(_cfg(), _inputs())))
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except urllib.error.HTTPError as e:
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print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
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sys.exit(1)
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except Exception as e:
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print(json.dumps({"error": str(e)}))
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sys.exit(1)
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def main(cfg, inputs):
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url = cfg.get("feed_url")
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if not url:
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raise Exception("feed_url is required")
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raw = _get(url, cfg)
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root = ET.fromstring(raw)
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n = sum(1 for el in root.iter() if _localname(el.tag) in ("item", "entry"))
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return {"ok": True, "items": n}
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_run(main)
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