Originally posted by **jansmets** October 23, 2021
Hi!
I'm trying to preserve POST data. The form has a textarea field.
The submitted form data is
"test
test
test
test"
During the redirection dance I see
mod_auth_openidc_preserve_post_params => {"test":"test%0D%0Atest%0D%0Atest%0D%0Atest%0D%0A"}
which looks good to me. (%0D%0A = CR LF)
After authentication with the idp the browser goes back to the redirect_uri, and then finally the browser does a POST again to the original location. In that request I see "testtesttesttest" - which has the newlines removed.
The Javascript used to replay the POST seems to be dropping that data.
var input = document.createElement("input");
https://github.com/zmartzone/mod_auth_openidc/blob/master/src/mod_auth_openidc.c#L494
behaves differently and is only valid for input elements, not textarea's. For example:
data="test%0D%0Atest%0D%0Atest%0D%0Atest%0D%0A"
input = document.createElement("input");
input.value = decodeURIComponent(data)
input.value
=> 'testtesttesttest'
area = document.createElement("textarea")
area.value = decodeURIComponent(data)
area.value
=> 'test\ntest\ntest\ntest\n'
I believe the element type also needs to be stored in the json data.
Thank you
zandbelt
commented
2 years ago
Discussed in https://github.com/zmartzone/mod_auth_openidc/discussions/717