File size: 609 Bytes
102dd4f | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | import hashlib
import hmac
def verify_meta_signature(body: bytes, signature_header: str | None, app_secret: str) -> bool:
if not signature_header or not signature_header.startswith("sha256="):
return False
expected = "sha256=" + hmac.new(
app_secret.encode("utf-8"),
body,
hashlib.sha256,
).hexdigest()
return hmac.compare_digest(expected, signature_header)
def verify_webhook_challenge(
mode: str | None,
verify_token: str | None,
expected_verify_token: str,
) -> bool:
return mode == "subscribe" and verify_token == expected_verify_token
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