[asterisk-dev] [Code Review] 4023: Allow passing options and command to MixMonitor when recording in ConfBridge

[Corey Farrell]

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I believe this change would allow AMI users to execute arbitrary commands on the Asterisk server (security risk).  The ability to SetVar CONFBRIDGE(bridge,record_command) from AMI would need to be blocked when asterisk.conf has live_dangerously=no.

- Corey Farrell


On Sept. 26, 2014, 12:23 a.m., gareth wrote:
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> https://reviewboard.asterisk.org/r/4023/
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> (Updated Sept. 26, 2014, 12:23 a.m.)
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> 
> Review request for Asterisk Developers.
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> 
> Bugs: ASTERISK-24351
>     https://issues.asterisk.org/jira/browse/ASTERISK-24351
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> Repository: Asterisk
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> Description
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> This patch adds the ability to pass options and a command to MixMontor when recording a conference using ConfBridge.
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> New options are -
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> record_options: Options to MixMontor, eg: m(), W() etc.
> record_command: The command to execute when recording is over.
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> eg: Set(CONFBRIDGE(bridge,record_command)=/path/to/command ^{MIXMONITOR_FILENAME}))
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> Note:
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> The current behavior of set_rec_filename is to always append a timestamp to rec_file. This is desirable for dynamically generated rec_file, but doesn't make sense for a user-supplied rec_file and the documenation does not mention that it does this either.
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> So the patch changes set_rec_filename to use the user-supplied rec_file as-is. 
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> 
> Diffs
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>   /trunk/configs/samples/confbridge.conf.sample 423782 
>   /trunk/apps/confbridge/include/confbridge.h 423782 
>   /trunk/apps/confbridge/conf_config_parser.c 423782 
>   /trunk/apps/app_confbridge.c 423782 
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> Diff: https://reviewboard.asterisk.org/r/4023/diff/
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> Testing
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> Set record_options to m(${MAILBOX}) and verified that a recording was delivered to ${MAILBOX}.
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> Set record_command to /bin/rm ^{MIXMONITOR_FILENAME} and checked that recording was deleted on ending the conference.
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> 
> Thanks,
> 
> gareth
> 
>

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