Is Mattermost webhook supported?

[BobWs]

I'm trying to setup the webhook support with Mattermost, but I can seems to get it to work.
When I enter my Mattermost webhook url in the preferences/notifications/slack webhook the url isn't saved even with adding.../slack at the end.

So I was wondering if it is possible to add Mattermost webhook support to Firefly, as slack and mattermost are very similar.
If it's not too much trouble!

[JC5]

It's not (yet). I'll see what I can find out. If it's compatible with slack I can make it work 😊

[JC5]

Firefly III v6.1.12 will support any url that ends with /slack. Keep in mind it will only send Slack compatible webhook data, so it depends on Mattermost if this will be accepted and works as expected. Let me know!

[BobWs]

It isn't working with Mattermost...I keep getting these errors in the log, and no notification is send to Mattermost.

[2024-03-21 13:44:14] production.ERROR: Client error: `POST https://mm.domain.tld/hooks/[my-webhooktoken]/slack` resulted in a `404 Not Found` response:
[2024-03-21 13:44:14] production.ERROR: #0 /var/www/html/vendor/guzzlehttp/guzzle/src/Middleware.php(72): GuzzleHttp\Exception\RequestException::create()
#46 /var/www/html/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#47 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(183): Illuminate\View\Middleware\ShareErrorsFromSession->handle()
[2024-03-21 13:51:06] production.ERROR: Client error: `POST https://mm.domain.tld/hooks/[my-webhooktoken]/slack` resulted in a `404 Not Found` response:
[2024-03-21 13:51:06] production.ERROR: #0 /var/www/html/vendor/guzzlehttp/guzzle/src/Middleware.php(72): GuzzleHttp\Exception\RequestException::create()
#46 /var/www/html/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#47 /var/www/html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(183): Illuminate\View\Middleware\ShareErrorsFromSession->handle()

[JC5]

It seems a 404 is returned, so the URL must be broken perhaps?

[BobWs]

I also tried with the IP http://192.168.178.110:8065/hooks/[mywebhooktoken/slack of mattermost but that isn't working either..

[BobWs]

this is an example how I use Mattermost webhook in a backupscript on My NAS

# Mattermost Webhooks for Backup Mariadb-dump

username="Base Backup"
icon_url_png="penguin.png"
header="##### 🔄 Backup Notice for:"
Machine="Name Machine"
backup_type1=$(capitalize "mariadb-dump") 
backup_type2=$(capitalize "postgres-dump")
location="NetBackup"
Status=✅
mm_datestamp=$(date "+%d-%m-%Y")

mattermost_webhook_url="https://mm.domain.tld/hooks/[mywebhooktoken]"
username=${username}
icon_url="https://icon.domain.tld/$icon_url_png"

markdown_table="| **Machine** | **Docker App** | **Backup Type** | **Destination** | **Status** | **Date** | **Start Time** | **Finish Time** |
| :------ | :------ | :------ | :------ | :------: | :------ | :------ | :------ |
| ${Machine} | ${docker_app1} | ${backup_type1} | ${location} | ${Status} | ${mm_datestamp} | ${start_time} | ${finish_time1} |
| ${Machine} | ${docker_app2} | ${backup_type1} | ${location} | ${Status} | ${mm_datestamp} | ${finish_time1} | ${finish_time2} |
| ${Machine} | ${docker_app3} | ${backup_type2} | ${location} | ${Status} | ${mm_datestamp} | ${finish_time2} | ${finish_time3} |"

payload="{\"username\": \"${username}\", \"icon_url\": \"${icon_url}\", \"text\": \"${header}\n${markdown_table}\"}"

curl -i -X POST -H 'Content-Type: application/json' -d "${payload}" "${mattermost_webhook_url}"

[JC5]

Sorry, the error doesn't leave much to the imagination. But the network abilities of the container may be different from within the container.