A multiform request causes tokio-curl to get stuck

Question

A multiform request causes tokio-curl to get stuck

bytesnake opened this issue 8 years ago · 5 comments

I'm trying to upload a large file by a multiform request. When tokio-curl attempts to upload the file content, it will always wait for an answer from the server to continue after the first packet. Rust-curl uploads the packets without awaiting some responds though.

Example

Answer 1 · 2016-12-21T00:41:29.000Z

Thanks for the report! I tested this out locally sending the payload to http://httpbin.com/post but was unfortunately unable to reproduce. What server were you using locally to test this against? That may help me to reproduce and dig into what's going on.

Answer 2 · 2016-12-21T15:57:21.000Z

Well, I've prototyped a rust bot library based on curl. Everything is working fine except uploading a file larger than 32kB (?). I've already tried to disable the except header but the bot server confirms the header and it accepts a small file without any problem.
To reproduce the case you will need a telegram bot api key, here is a small test: https://gist.github.com/anonymous/3f70dee7f0f689034d6accac6a98f435
I created a example server with netcat and observed the behaviour of curl. Sometimes it's easier to illustrate:

tokio-curl:

rust-curl:

Did I miss something or is this an intended behaviour? It seems like the event loop awaits a new incoming packet before sending the next one.

Answer 3 · 2016-12-23T00:28:39.000Z

Thanks for the info! I've been able to reproduce locally, and I think that de0ecf3 should fix the problem. Could you test it out though and confirm that it works?

Answer 4 · 2016-12-23T07:58:54.000Z

jep upload is working now, you're awesome, thanks!

Answer 5 · 2016-12-25T21:15:22.000Z

Ok, I've published 0.3.6 with these changes, thanks for testing!