[asterisk-bugs] [JIRA] (ASTERISK-30236) app_queue.c: Properly escape commas in MONITOR* variables.

Sean Bright (JIRA) noreply at issues.asterisk.org
Mon Sep 19 10:59:08 CDT 2022


     [ https://issues.asterisk.org/jira/browse/ASTERISK-30236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Bright updated ASTERISK-30236:
-----------------------------------

    Summary: app_queue.c: Properly escape commas in MONITOR* variables.  (was: app_queue.c: Don't escape commas in MONITOR_FILENAME.)

> app_queue.c: Properly escape commas in MONITOR* variables.
> ----------------------------------------------------------
>
>                 Key: ASTERISK-30236
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-30236
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Applications/app_queue
>    Affects Versions: GIT, 19.6.0, 16.28.0, 18.14.0
>            Reporter: Sean Bright
>            Assignee: Sean Bright
>
> The contents of the {{MONITOR_FILENAME}} variable is evaluated when a queue member is connected to a caller, allowing information about the member to be included in the filename.
> This is made possible by using {{^\{MEMBERINTERFACE}}} syntax instead of {{$\{MEMBERINTERFACE}}} when assigning a value to {{MONITOR_FILENAME}} so that evaluation does not occur immediately. The {{MONITOR_EXEC}} variable is handled similarly.
> Because of the way that {{MONITOR_EXEC}} works under the hood, the code that performs the variable replacement also escapes commas before doing so. However, this replacement should be taking place _after_ the variable replacement is done so that unescaped commas are not erroneously passed to the MixMonitor start function.
> Finally, having a comma in a filename is not problematic so we now only escape commas after variable replacement is performed on {{MONITOR_EXEC}}.
> The main consequence of this change is that you can now use dialplan functions with multiple arguments in {{MONITOR_FILENAME}} without the commas being escaped before variable replacement occurs.



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