[asterisk-bugs] [JIRA] (ASTERISK-26580) [patch] Error during LDAP modify action when user unregisters

[Asterisk Team (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-26580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=233611#comment-233611 ] 

Asterisk Team commented on ASTERISK-26580:
------------------------------------------

Thanks for creating a report! The issue has entered the triage process. That means the issue will wait in this status until a Bug Marshal has an opportunity to review the issue. Once the issue has been reviewed you will receive comments regarding the next steps towards resolution.

A good first step is for you to review the [Asterisk Issue Guidelines|https://wiki.asterisk.org/wiki/display/AST/Asterisk+Issue+Guidelines] if you haven't already. The guidelines detail what is expected from an Asterisk issue report.

Then, if you are submitting a patch, please review the [Patch Contribution Process|https://wiki.asterisk.org/wiki/display/AST/Patch+Contribution+Process].

> [patch] Error during LDAP modify action when user unregisters
> -------------------------------------------------------------
>
>                 Key: ASTERISK-26580
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26580
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_config_ldap
>    Affects Versions: 11.24.1
>         Environment: 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u1 (2016-09-03) x86_64 GNU/Linux
> slapd 2.4.40+dfsg-1+deb8u2
>            Reporter: Nicholas John Koch
>            Severity: Minor
>
> When an account has been looked up from the LDAP directory and activated some values within the LDAP object (AsteriskSIPUser) are updated.
> In this special case we are looking at _AstAccountFullContact_. When this account now unregisters the LDAP object will be updated.
> During this process some attributes get deleted. The bug is that the first attribute in the list is trying to be modified without a value but it should be deleted instead.
> Wiresharking the issue showed that the LDAP modification command has an empty value which is in terms of the LDAP syntax a fault.
> Hence this modification command must be a deletion.
> The patch checks if the first new value ist empty (mostly _AstAccountFullContact_) and therefore inserts a deletion command rather than a modification command. A similar
> procedure is already done some lines below but has not been implemented to the first name/value pair.



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