[cups-devel] [UNKN] STR #4371: auth-info-required - ipp backend

[vesely at gjh.sk]

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[STR New]

I don't want gui authentification dialog to show when I specify
username:password@ in the printer uri in printers.conf.

However in ipp.c line 2544 password_cb 
auth_info_required is set to "username,password" unconditionally.

This leads to setting auth-info-required printer attribute and 
gui shows dialog next time. Even if this attribute is changed 
manually to "none", after each authentification it is reset back to
"username,password". This is very annoying. 

Commenting this line out solved the problem. While I understand a
motivation behind putting it there, it is not wise to assume that
credentials come from gui.

Other possible interpretation is that backend is right about setting
auth-info-required="username,password", but gui needs to check if the
credentials are already provided in uri and do not ask the user in that
case.

For me the fixing the backend was easied than figuring out the behaviour of
(possibly many different) guis.

Link: https://www.cups.org/str.php?L4371
Version: 1.5.3
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