Created on 2019-06-25 19:36 by AkshayTakkar, last changed 2019-06-28 18:01 by AkshayTakkar.
| Files | ||||
|---|---|---|---|---|
| File name | Uploaded | Description | Edit | |
| server_client | AkshayTakkar, 2019-06-25 19:36 | Server/Client Code to replicate the issue. Note: You'll have to create the certificate.pem and key.pem files | ||
| Pull Requests | |||
|---|---|---|---|
| URL | Status | Linked | Edit |
| PR 14457 | closed | AkshayTakkar, 2019-06-28 18:01 | |
| Messages (5) | |||
|---|---|---|---|
| msg346550 - (view) | Author: Akshay Takkar (AkshayTakkar) * | Date: 2019-06-25 19:36 | |
I'm working on a server that uses sock_recv from asyncio. await sock_recv(socket, n) never returns if socket is wrapped in ssl using the wrap_socket function from the ssl module. I think the problem stated in this stackoverflow question could be the reason: https://stackoverflow.com/questions/40346619/behavior-of-pythons-select-with-partial-recv-on-ssl-socket |
|||
| msg346552 - (view) | Author: Christian Heimes (christian.heimes) *  |
Date: 2019-06-25 19:42 | |
You can't use sock_recv() with a wrapped SSL socket. A SSLSocket behaves differently because there is user-level buffering. The connection operates on TLS frames and only hands off data after it has been decrypted and verified. asyncio uses wrap_bio(). |
|||
| msg346597 - (view) | Author: Akshay Takkar (AkshayTakkar) * | Date: 2019-06-26 10:20 | |
Can you please elaborate on how to get around this issue? |
|||
| msg346598 - (view) | Author: Andrew Svetlov (asvetlov) * |
Date: 2019-06-26 10:35 | |
Use asyncio transports or streams. sock_recv() is a low-level API with a very limited audience. wrapped ssl socket provides a synchronous interface only. Perhaps we should raise an exception if SSLSocket is passed into asyncio functions. |
|||
| msg346599 - (view) | Author: Akshay Takkar (AkshayTakkar) * | Date: 2019-06-26 10:48 | |
Ah, I see. Yes, raising an exception would probably be very useful. Thanks for the info. |
|||
| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2019-06-28 18:01:56 | AkshayTakkar | set | keywords:
+ patch stage: patch review pull_requests: + pull_request14274 |
| 2019-06-26 10:48:50 | AkshayTakkar | set | messages: + msg346599 |
| 2019-06-26 10:35:47 | asvetlov | set | messages: + msg346598 |
| 2019-06-26 10:20:58 | AkshayTakkar | set | messages: + msg346597 |
| 2019-06-25 19:42:40 | christian.heimes | set | messages: + msg346552 |
| 2019-06-25 19:36:21 | AkshayTakkar | create | |