Guillaume BOURGEOIS
27615636e3
Gmail API + Directory API (27 commands): mailbox search/read/send/ trash/label/move, attachments retrieval, vacation auto-reply, filters, forwarding addresses, delegates, and Workspace user administration; message ingestion (get_incidents) with a bundled OCSF mapper. Service-account auth with domain-wide delegation (JWT RS256), runs on a remote engine (requires PyJWT + cryptography). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
127 lines
4.6 KiB
Python
127 lines
4.6 KiB
Python
import json, os, sys, time, urllib.parse, urllib.request, urllib.error
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import jwt
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import base64
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TOKEN_URL = "https://oauth2.googleapis.com/token"
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def _cfg():
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return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
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def _token(scopes, subject=None):
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cfg = _cfg()
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raw = cfg.get("service_account_json", "")
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sa = json.loads(raw) if isinstance(raw, str) else raw
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if not sa.get("client_email") or not sa.get("private_key"):
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raise Exception("service_account_json must contain client_email and private_key")
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now = int(time.time())
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aud = sa.get("token_uri") or TOKEN_URL
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payload = {
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"iss": sa["client_email"],
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"scope": " ".join(scopes),
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"aud": aud,
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"iat": now,
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"exp": now + 3600,
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}
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sub = subject or cfg.get("user_id") or ""
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if sub:
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payload["sub"] = sub
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assertion = jwt.encode(payload, sa["private_key"], algorithm="RS256")
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data = urllib.parse.urlencode({
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"grant_type": "urn:ietf:params:oauth:grant-type:jwt-bearer",
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"assertion": assertion,
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}).encode("utf-8")
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req = urllib.request.Request(aud, data=data,
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headers={"Content-Type": "application/x-www-form-urlencoded"}, method="POST")
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with urllib.request.urlopen(req, timeout=60) as r:
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tok = json.loads(r.read())
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if not tok.get("access_token"):
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raise Exception("Token request failed: " + json.dumps(tok))
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return tok["access_token"]
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def request(method, url, scopes, params=None, body=None, subject=None):
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q = {k: str(x) for k, x in (params or {}).items() if x not in (None, "")}
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if q:
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url += ("&" if "?" in url else "?") + urllib.parse.urlencode(q)
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data = json.dumps(body).encode("utf-8") if body is not None else None
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headers = {"Accept": "application/json", "Authorization": "Bearer " + _token(scopes, subject)}
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if data is not None:
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headers["Content-Type"] = "application/json"
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req = urllib.request.Request(url, data=data, headers=headers, method=method)
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with urllib.request.urlopen(req, timeout=90) as r:
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raw = r.read()
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return json.loads(raw) if raw else {}
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SCOPES = ["https://www.googleapis.com/auth/gmail.readonly"]
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def flatten_message(msg):
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payload = msg.get("payload", {})
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headers = {h.get("name", "").lower(): h.get("value", "") for h in payload.get("headers", [])}
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acc = {"body_text": "", "body_html": "", "attachments": []}
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def walk(part):
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for sub in part.get("parts", []) or []:
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walk(sub)
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mime = part.get("mimeType", "")
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data = part.get("body", {}).get("data")
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if part.get("filename"):
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acc["attachments"].append({
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"id": part.get("body", {}).get("attachmentId", ""),
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"name": part.get("filename", ""),
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"mime_type": mime,
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})
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elif data:
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text = base64.urlsafe_b64decode(data.encode("ascii")).decode("utf-8", "replace")
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if mime == "text/html":
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acc["body_html"] += text
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else:
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acc["body_text"] += text
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walk(payload)
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return {
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"id": msg.get("id"),
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"thread_id": msg.get("threadId"),
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"labels": msg.get("labelIds", []),
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"snippet": msg.get("snippet", ""),
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"internal_date": msg.get("internalDate"),
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"subject": headers.get("subject", ""),
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"from": headers.get("from", ""),
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"to": headers.get("to", ""),
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"cc": headers.get("cc", ""),
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"date": headers.get("date", ""),
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"message_id_header": headers.get("message-id", ""),
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"body_text": acc["body_text"],
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"body_html": acc["body_html"],
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"attachments": acc["attachments"],
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}
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def main():
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inputs = json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
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mailbox = str(inputs.get("user_id") or _cfg().get("user_id") or "me")
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base = "https://gmail.googleapis.com/gmail/v1/users/" + urllib.parse.quote(mailbox, safe="")
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thread_id = str(inputs.get("thread_id") or "").strip()
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if not thread_id:
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raise Exception("thread_id is required")
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thread = request("GET", base + "/threads/" + urllib.parse.quote(thread_id, safe=""),
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SCOPES, params={"format": "full"}, subject=mailbox)
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messages = [flatten_message(m) for m in thread.get("messages", []) or []]
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print(json.dumps({"id": thread_id, "messages": messages}))
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try:
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main()
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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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