[asterisk-bugs] [JIRA] (ASTERISK-23154) Manager: ExtensionStatus event does not present information in a human readable way

[Jonathan Rose (JIRA)]

Jonathan Rose created ASTERISK-23154:
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             Summary: Manager: ExtensionStatus event does not present information in a human readable way
                 Key: ASTERISK-23154
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-23154
             Project: Asterisk
          Issue Type: Improvement
      Security Level: None
          Components: Core/ManagerInterface
    Affects Versions: SVN, 1.8.26.0, 11.8.0, 12.1.0
            Reporter: Jonathan Rose


ExtensionStatus displays the extension status purely as a number which is set based on a field of the ast_state_cb_info struct called 'exten_state'.

exten_state isn't really a state value. The enumerator has a few values that operate as states, those being:
AST_EXTENSION_REMOVED
AST_EXTENSION_DEACTIVATED
AST_EXTENSION_NOT_INUSE
AST_EXTENSION_INUSE

But after that things start to get a little weird.  The extension state value that I noticed in particular was 16 which would be:
AST_EXTENSION_INUSE | AST_EXTENSION_ONHOLD

and allegedly it would be possible to hit other combinations such as NOT_INUSE | UNAVAILABLE

Obviously changing the value of the Status field in the event is off the table, but a new value should be added to present this information
in a human readable way, possibly simply by providing a function that turns an extension state into a comma separated list of the items in
the enumerator.

Another part of this task could be adding documentation.

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