# Send Synology and QNAP notification to Slack

## 1. Create a slack webhook
https://api.slack.com/messaging/webhooks

## 2. Setup for Synology

2. Goto > Control Panel > Notification > SMS
2.1 then enable it
2.2 and add SMS service provider

2.3 Skip request Header

2.4 Create two parameters: `text` and `phone_number` and bind it

2.6 Done. Set a random phone number, Slack API will ignore the invalid field without error

2.7 Test it

2.8 (Optional) You may check/uncheck the notifcations in Advanced panel

## 3. Setup for Qnap

3. Goto > Control Panel > Notification Center > Serivce Account > SMS > Add SMSC serice

Because QNAP is NOT KIND, we need to create a small proxy (You can run in lambda or somewhere).

Here, I setup a secret proxy URL:
`https://your_api_url:port/qnap_notify/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx?text=@@Text@@&p=@@PhoneNumber@@`

And my proxy is written in Python

from aiohttp import web, ClientSession


async def proxy(request):
    async with ClientSession() as session:
        rep = await session.post("https://hooks.slack.com/services/Txxxxxxxx/Bxxxxxxxxx/2xxxxxxxxxxxxx",
                                 json={'text': request.query.get("text", "")})
        return web.json_response({"status": "ok", 'data': await rep.text()})


if __name__ == "__main__":
    app = web.Application()
    app.add_routes([web.get('/qnap_notify/xxxxxxxxxx', proxy)])
    web.run_app(app, port=80)

3.3 Remeber to test it

3.4 Bind to notifcation rule. (Phone number doesn't matter)

## Note

### Nginx

Because Nginx didn't decode the url-encoded string in $var variable.

    location /qnap_notify/xxxxxx {
        resolver                8.8.8.8;
        proxy_pass              https://hooks.slack.com/services/xxx;
        proxy_method            POST;
        proxy_set_body          '{"text": "$arg_text"}';
        proxy_set_header        Content-type application/json;
    }

3rd modules [set-misc-nginx-module](https://github.com/openresty/set-misc-nginx-module) can be helpful, however you might build the nginx by your own. I follow this [Nginx Dockerfile](https://stackoverflow.com/questions/57739560/what-do-i-need-to-change-in-nginx-official-dockers-image-to-have-the-set-misc-n) with latest nginx 1.21.5.

load_module /nginx-1.21.5/objs/ndk_http_module.so;
load_module /nginx-1.21.5/objs/ngx_http_set_misc_module.so;
events {}
http{
    server {
        listen                      80;

        location /my {
            proxy_pass              http://xxxxxxxxxx;
            proxy_method            POST;
            # set_unescape_uri in defined in set-misc-nginx-module
            set_unescape_uri        $text $arg_text;
            proxy_set_body          '{"text": "$text"}';
            proxy_set_header        Content-type application/json;
        }
    }
}

my scripts

apt update
apt-get install -y openssh-client git wget libxml2 libxslt1-dev libpcre3 libpcre3-dev zlib1g zlib1g-dev openssl libssl-dev libtool automake gcc g++ make
cd /
wget "http://nginx.org/download/nginx-1.21.5.tar.gz"
tar xvf nginx-1.21.5.tar.gz
git clone https://github.com/vision5/ngx_devel_kit
git clone https://github.com/openresty/set-misc-nginx-module
cd nginx-1.21.5
./configure --with-compat --with-http_ssl_module --add-dynamic-module=/ngx_devel_kit --add-dynamic-module=/set-misc-nginx-module
make -j 30
nginx -s reload

### slackbot
If you already have a slackbot (https://github.com/slackapi/bolt-python) deployed, you can still add it inside your script:

    app.server().web_app.add_routes([web.get("/qnap_notify/xxxxx", proxy)])