feat(proofpoint-tap): new Proofpoint TAP email-threat integration

TAP SIEM API v2, 11 commands: SIEM events (all/messages/clicks blocked+delivered+
permitted), threat/campaign forensics, campaign get/list, URL Defense decode,
top clickers. HTTP Basic (service principal) auth, stdlib-only.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

integrations/proofpoint-tap/scripts/url_decode.py

@@ -0,0 +1,58 @@
+import json, os, sys, 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 _base(cfg):
+    return (str(cfg.get("url") or "https://tap-api-v2.proofpoint.com")).rstrip("/") + "/v2"
+
+
+def _auth_header(cfg):
+    raw = str(cfg.get("service_principal", "")) + ":" + str(cfg.get("secret", ""))
+    return "Basic " + base64.b64encode(raw.encode("utf-8")).decode("utf-8")
+
+
+def request(method, path, cfg, body=None, params=None):
+    url = _base(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)
+    data = json.dumps(body).encode("utf-8") if body is not None else None
+    headers = {"Authorization": _auth_header(cfg), "Accept": "application/json"}
+    if data is not None:
+        headers["Content-Type"] = "application/json"
+    req = urllib.request.Request(url, data=data, headers=headers, method=method)
+    with urllib.request.urlopen(req, timeout=90) as r:
+        raw = r.read()
+        return json.loads(raw) if raw else {}
+
+
+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):
+    urls = inputs.get("urls")
+    if not urls:
+        raise Exception("urls is required")
+    urls_list = [u.strip() for u in str(urls).split(",") if u.strip()]
+    if not urls_list:
+        raise Exception("urls is required")
+    return request("POST", "/url/decode", cfg, body={"urls": urls_list})
+
+
+_run(main)