pyhanko.sign.timestamps.aiohttp_client module
- class pyhanko.sign.timestamps.aiohttp_client.AIOHttpTimeStamper(url, session: Union[aiohttp.client.ClientSession, pyhanko_certvalidator.fetchers.aiohttp_fetchers.util.LazySession], https=False, timeout=5, headers=None, auth: Optional[aiohttp.helpers.BasicAuth] = None)
Bases:
pyhanko.sign.timestamps.api.TimeStamper
- async async_request_headers() dict
Format the HTTP request headers. Subclasses can override this to perform their own header generation logic.
- Returns
Header dictionary.
- async get_session() aiohttp.client.ClientSession
- async async_timestamp(message_digest, md_algorithm) asn1crypto.cms.ContentInfo
Request a timestamp for the given message digest.
- Parameters
message_digest – Message digest to which the timestamp will apply.
md_algorithm –
Message digest algorithm to use.
Note
As per RFC 8933,
md_algorithm
should also be the algorithm used to computemessage_digest
.
- Returns
A timestamp token, encoded as an
asn1crypto.cms.ContentInfo
object.- Raises
IOError – Raised in case of an I/O issue in the communication with the timestamping server.
TimestampRequestError – Raised if the timestamp server did not return a success response, or if the server’s response is invalid.
- async async_request_tsa_response(req: asn1crypto.tsp.TimeStampReq) asn1crypto.tsp.TimeStampResp
Submit the specified timestamp request to the server.
- Parameters
req – Request body to submit.
- Returns
A timestamp response from the server.
- Raises
IOError – Raised in case of an I/O issue in the communication with the timestamping server.