[Icecast] Edited: <on-connect> / <on-disconnect> not working
Jordan Erickson
jordan at subj.am
Wed Sep 20 18:18:49 UTC 2023
You need to put that msmtp config file in Icecast user's configured home
directory. Look in /etc/passwd for that or just 'cd ~' as Icecast user.
It's likely not /home/icecast2 if you had to create it yourself manually.
Cheers,
Jordan Erickson
https://subj.am/
On 9/20/23 11:11, Jack Elliott wrote:
>
> Hi Jordan, thank you for the suggestion to try msmtp directly as user
> icecast2
>
> First I try as user kpovdjs (me):
>
> kpovdjs at Icecast-Pi:~/bin $ echo "hello there username." | msmtp -a gmailthatjackelliott at kpov.org
>
> This does send the email.
>
> Now su to user icecast2
>
> icecast2 at Icecast-Pi:/home/kpovdjs/bin$ echo "hello there username." | msmtp -a gmailthatjackelliott at kpov.org
> msmtp: account gmail not found: no configuration file available
>
> Interesting. For user kpovdjs, msmtp finds account information in
> /home/kpovdjs/.msmtprc
>
> But as user icecast2, there is no .msmtprc file in /home/icecast2
>
> In fact, there is no icecast2 folder in /home
>
> So I create /home/icecast2
>
> I copy my user .msmtprc to /home/icecast2
>
> icecast2 at Icecast-Pi:/home/kpovdjs$ ls -la /home/icecast2
> total 12
> drwxr-xr-x 2 icecast2 root 4096 Sep 20 10:57 .
> drwxr-xr-x 5 root root 4096 Sep 20 10:51 ..
> -rw-r--r-- 1 icecast2 root 332 Sep 20 10:57 .msmtprc
>
> Now I try again:
>
> icecast2 at Icecast-Pi:/home/kpovdjs$ echo "hello there username." | msmtp -a gmailthatjackelliott at kpov.org
> msmtp: account gmail not found: no configuration file available
>
> If msmtp cannot find its rc file in /home/icecast2, then maybe there
> is a way to specify the location.
>
> --
> Jack Elliott
> Director of Classical Music Programming
> High Desert Community Radio
> KPOV Bend, Oregon
> On 9/20/23 10:35 AM, Jordan Erickson wrote:
>> Hi Jack,
>>
>> Have you tried, as the icecast2 user, interactively using the msmtp
>> command instead of with your script? Try this, it will narrow down
>> the variables. Also, check to see if your iceast2 user has the
>> required group membership(s), if any, to send mail from that machine.
>>
>>
>> Cheers,
>> Jordan Erickson
>>
>> https://subj.am/
>> On 9/20/23 10:32, Jack Elliott wrote:
>>>
>>> Thank you, Philipp Schafft,
>>>
>>> Okay my amateur bash script is badly written and I will clean it up.
>>>
>>> But I don't think my clumsy scripting explains why I can run the
>>> script as user kpovdjs, but not as user icecast2?
>>>
>>> It uses /usr/bin/msptp and
>>>
>>> kpovdjs at Icecast-Pi:~/bin $ ls -l /usr/bin/msmtp
>>> -rwxr-xr-x 1 root root 83848 Jun 19 2014 /usr/bin/msmtp
>>>
>>> So that isn't a problem.
>>>
>>> And the script:
>>>
>>> kpovdjs at Icecast-Pi:~/bin $ ls -l email_onconnect.sh
>>> -rwxrwxrwx 1 kpovdjs kpovdjs 422 Sep 20 10:08 email_onconnect.sh
>>>
>>> Yes, I have tried running the script as user kpovdjs and it works.
>>> And the same command as user icecast2 does not work and does not
>>> make an error message.
>>>
>>> Thomas Zumbrunnen wonders about my mount point definition, this is it:
>>>
>>> <mount type="normal">
>>> <mount-name>/stream</mount-name>
>>> <fallback-mount>/fallbacks/Generic_Silence_192kbps_48kHz.mp3</fallback-mount>
>>> <fallback-override>1</fallback-override>
>>> <fallback-when-full>1</fallback-when-full>
>>> <burst-size>65535</burst-size>
>>> <on-connect>/home/kpovdjs/bin/email_onconnect.sh</on-connect>
>>> <on-disconnect>/home/kpovdjs/bin/email_ondisconnect.sh</on-disconnect>
>>> <no-yp>1</no-yp>
>>> </mount>
>>>
>>> Thank you, everyone!
>>>
>>> --
>>> Jack Elliott
>>> Director of Classical Music Programming
>>> High Desert Community Radio
>>> KPOV Bend, Oregon
>>> On 9/20/23 8:44 AM, Philipp Schafft wrote:
>>>> Good morning,
>>>>
>>>> On Wed, 2023-09-20 at 08:24 -0700, Jack Elliott wrote:
>>>>> Hi all,
>>>>> I am still trying to debug this. Summary, I am using <on-connect> in
>>>>> my icecast.xml to launch an email when a source-client connects.
>>>>> Here is the line in icecast.xml:
>>>>> <on-connect>/home/kpovdjs/bin/email_onconnect.sh</on-connect>
>>>>> The problem is that this script doesn't do anything when icecast runs
>>>>> it.
>>>>> The script works if I run it as user kpovdjs (me). But if I su to
>>>>> user icecast2, it does nothing.
>>>>> "email_onconnect.sh" is:
>>>>> #!/bin/bash
>>>>> set -x
>>>>>
>>>>> #thatjackelliott at kpov.org
>>>>>
>>>>> printf "To:thatjackelliott at kpov.org\nFrom:kpovcomputer at gmail.com\nS
>>>>> ubject: Remote host has connected to mountpoint $1 on the
>>>>> Backstream\n\n KPOV Icecast server on IcecastPi has detected a
>>>>> connection on the backstream." > /home/kpovdjs/bin/on_connect.txt
>>>>> /usr/bin/msmtpthatjackelliott at kpov.org <
>>>>> /home/kpovdjs/bin/on_connect.txt >/home/kpovdjs/bin/msmtp.log 2>&1
>>>> Your printf is wrong here.
>>>> NEVER do something like: printf "bla $blubb bla\n";
>>>> ALWAYS do: printf "bla %s bla\n" "$blubb";
>>>>
>>>> That is exactly why we use printf in the first place. This is the
>>>> reason it exists.
>>>>
>>>> Also you can just pipe your output between the commands. No need for a
>>>> tempfile (which also adds many problems, from permissions to race
>>>> conditions).
>>>>
>>>>
>>>>> If I run it as user kpovdjs (me), it sends the email, and this is the
>>>>> debug output:
>>>>> kpovdjs at Icecast-Pi:~/bin $ ./email_onconnect.sh
>>>>> + printf 'To:thatjackelliott at kpov.org\nFrom:kpovcomputer at gmail.com\
>>>>> nSubject: Remote host has connected to mountpoint on the
>>>>> Backstream\n\n KPOV Icecast server on IcecastPi has detected a
>>>>> connection on the backstream.'
>>>>> + /usr/bin/msmtpthatjackelliott at kpov.org
>>>>> But as user icecast2, the debug output is the same, but no email
>>>>> sent:
>>>>> icecast2 at Icecast-Pi:/home/kpovdjs/bin$ ./email_onconnect.sh
>>>>> + printf 'To:thatjackelliott at kpov.org\nFrom:kpovcomputer at gmail.com\
>>>>> nSubject: Remote host has connected to mountpoint on the
>>>>> Backstream\n\n KPOV Icecast server on IcecastPi has detected a
>>>>> connection on the backstream.'
>>>>> + /usr/bin/msmtpthatjackelliott at kpov.org
>>>> Are you sure /usr/bin/msmtp works as the Icecast user?
>>>> Have you tried to run that script as the same user as Icecast?
>>>> e.g.: sudo -u icecast /path/to/script
>>>>
>>>>
>>>>> For debug purposes, I have rwxrwxrwx permission set from / and down
>>>>> to and including the script.
>>>>> -rwxrwxrwx 1 kpovdjs kpovdjs 414 Sep 17 10:59 email_onconnect.sh
>>>> I hope that is a really really bad joke.
>>>>
>>>>
>>>>> For further debug purposes, I made a copy of the .sh script and
>>>>> chowned it to user icecast2.
>>>>> -rwxr-xr-x 1 icecast2 icecast 414 Sep 20 08:08
>>>>> email_onconnect_usericecast2.sh
>>>>> It also does not send the email when I invoke it as user icecast2.
>>>>> The "set -x" debug output is the same.
>>>>> At this point it seems that this is not a icecast issue, per se, but
>>>>> some sneaky subtle weird annoying little Linux thing. However, if
>>>>> anyone here has an idea on how I might solve it, it would be very
>>>>> much appreciated.
>>>> Not the wording I would use.
>>>>
>>>> You could check Icecast's error.log to see if it reports a problem.
>>>>
>>>> Other than that you really first need to establish that the script
>>>> actually works running as that user.
>>>>
>>>>
>>>>> Thank you!
>>>>> ===========================
>>>>>
>>>>> Very cool, I haven't encountered the "set -x" debug flag before.
>>>>> However, the output isn't as interesting as I hoped:
>>>>>
>>>>> icecast2 at Icecast-Pi:/home/kpovdjs/bin$ ./email_onconnect.sh
>>>>> + printf 'To:thatjackelliott at kpov.org\nFrom:kpovcomputer at gmail.com\nS
>>>>> ubject: Remote host has connected to mountpoint on the Backstream\n\n
>>>>> KPOV Icecast server on IcecastPi has detected a connection on the
>>>>> backstream.'
>>>>> + /usr/bin/msmtpthatjackelliott at kpov.org
>>>>> icecast2 at Icecast-Pi:/home/kpovdjs/bin$
>>>>>
>>>>> Thank you!
>>>>>
>>>>>> Hi
>>>>>>
>>>>>> For debuging purpose put
>>>>>> set -x in the row after #!/bin/bash
>>>>>> and execute the script. Post the whole output here.
>>>>>>
>>>>>> Cheers
>>>>>> Tom
>>>>>> Am 17. Sept. 2023, 19:42 +0200 schrieb Jack Elliott <
>>>>>> that.jack.elliott at gmail.com>:
>>>>>>> Hi Jordan,
>>>>>>>
>>>>>>> Here is my script:
>>>>>>>
>>>>>>> #!/bin/bash
>>>>>>>
>>>>>>> #thatjackelliott at kpov.org
>>>>>>>
>>>>>>> printf"To:thatjackelliott at kpov.org\nFrom:kpovcomputer at gmail.com\
>>>>>>> nSubject: Remote host has connected to mountpoint $1 on the
>>>>>>> Backstream\n\n KPOV Icecast server on IcecastPi has detected a
>>>>>>> connection on the backstream." >
>>>>>>> /home/my_username/bin/on_connect.txt
>>>>>>> /usr/bin/msmtpthatjackelliott at kpov.org <
>>>>>>> /home/my_username/bin/on_connect.txt
>>>>>>>> /home/my_username/bin/msmtp.log 2>&1
>>>>>>> This script has rwx set for everyone (for debugging).
>>>>>>>
>>>>>>> Thank you!
>>>>>>>
>>>>>>> --
>>>>>>> Jack Elliott
>>>>>>> Director of Classical Music Programming
>>>>>>> High Desert Community Radio
>>>>>>> KPOV Bend, Oregon
>>>>>>> On 9/17/23 8:25 AM, Jordan Erickson wrote:
>>>>>>>> Hi Jack,
>>>>>>>>
>>>>>>>> You said:
>>>>>>>>
>>>>>>>> ---
>>>>>>>> Okay now that I am user icecast2, let me see if the script I
>>>>>>>> want the Icecast server to run <on-connect> runs, so . . .
>>>>>>>> icecast2 at icecast-Pi: $ ./email_onconnect.sh
>>>>>>>>
>>>>>>>> and the prompt returns immediately, no error message, but no
>>>>>>>> email received. But if I su back to my_username and try the
>>>>>>>> script, it runs and an email is received.
>>>>>>>>
>>>>>>>> ---
>>>>>>>>
>>>>>>>> This tells me that your script is not doing what it needs to do
>>>>>>>> as the Icecast user. Since you're doing it outside of Icecast,
>>>>>>>> it's not the <on-connect> or <on-disconnect> triggers that are
>>>>>>>> failing. It would be helpful if you could paste your script
>>>>>>>> (sensitive info like passwords removed) here.
>>>>>>>>
>>>>>>>>
>>>>>>>> Cheers,
>>>>>>>> Jordan
>>>>>>>> https://subj.am/
>>>
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>>
>>
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