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NetAlertX/front/plugins/README.md
2023-02-05 13:02:38 +11:00

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## Overview
PiAlert comes with a simple plugin system to feed events from third-party scripts into the UI and then send notifications if desired.
If you wish to develop a plugin, please check the existing plugin structure.
## Plugin file structure overview
| File | Required | Description |
|----------------------|----------------------|----------------------|
| `config.json` | yes | Contains the plugin configuration including the settings available to the user. |
| `script.py` | yes | The Python script itself |
| `last_result.log` | yes | The file used to interface between PiAlert and the plugin (script). Should contain a set of testing data. |
| `script.log` | no | Logging output (recommended) |
| `README.md` | no | Amy setup considerations or overview |
More on specific files below.
### script.log
Used to interface between PiAlert and the plugin (script). After every scan it should contain only the results from the latest scan/execution.
- The format is a `csv`-like file with the pipe `|` separator. 8 (eight) values need to be supplied, so every line needs to contain 7 pipe separators. Empty values arerepresented by `null`
- Don't render "headers" for these "columns"
- Every scan result / event entry needs to be on a new line
- You can find which "columns" need to be present in the script results and if the value is required below.
- The order of these "columns" can't be changed
| Order | Represented Column | Required | Description |
|----------------------|----------------------|----------------------|----------------------|
| 0 | `Object_PrimaryID` | yes | The primary ID used to group Events under. Should be UNIQUE in the context of the last result (so in `last_result.log`) |
| 1 | `Object_SecondaryID` | no | Optionalsecondary ID to create a relationship beween other entities, such as a MAC address |
| 2 | `DateTime` | yes | When the event occured in the format `2023-01-02 15:56:30` |
| 3 | `Watched_Value1` | yes | A value that is watched and users can receive notifications if it changed compared to the previously saved entry. For example IP address |
| 4 | `Watched_Value2` | no | As above |
| 5 | `Watched_Value3` | no | As above |
| 6 | `Watched_Value4` | no | As above |
| 7 | `Extra` | no | Any other data you want to pass and display in PiAlert and the notifcations |
#### Examples
Valid CSV:
```csv
https://www.google.com|null|2023-01-02 15:56:30|200|0.7898|null|null|null
https://www.duckduckgo.com|192.168.0.1|2023-01-02 15:56:30|200|0.9898|null|null|Best search engine
```
Invalid CSV with different errors on each line:
```csv
https://www.google.com|null|2023-01-02 15:56:30|200|0.7898||null|null
https://www.duckduckgo.com|null|2023-01-02 15:56:30|200|0.9898|null|null|Best search engine|
|https://www.duckduckgo.com|null|2023-01-02 15:56:30|200|0.9898|null|null|Best search engine
null|192.168.1.1|2023-01-02 15:56:30|200|0.9898|null|null|Best search engine
https://www.duckduckgo.com|192.168.1.1|2023-01-02 15:56:30|null|0.9898|null|null|Best search engine
https://www.google.com|null|2023-01-02 15:56:30|200|0.7898|||
https://www.google.com|null|2023-01-02 15:56:30|200|0.7898|
```
### config.json
#### Supported settings types
- `RUN`
- `RUN_SCHD`
- `API_SQL`
- `TIMEOUT`
- `NOTIFY_ON`
- `ARGS`
#### Example
```json
{
"code_name": "website_monitor",
"settings_short_prefix": "WEBMON",
"display_name" : "Website monitor",
"font_awesome_icon_classses": "fa-solid fa-globe",
"description": {
"en_us" : "This plugin is to monitor status changes of different services or websites."
},
"database_column_aliases":{
"Plugins_Events":{
"Index":{
"en_us" : "Index"
},
"Object_PrimaryID":{
"en_us" : "Monitored URL"
},
"DateTime":{
"en_us" : "Checked on"
},
"Watched_Value1":{
"en_us" : "Status code"
},
"Watched_Value2":{
"en_us" : "Latency"
}
}
},
"settings":[
{
"type": "RUN",
"default_value":"none",
"options": ["none","once","schedule"],
"name" : {
"en_us" : "Schedule"
},
"description":
{
"en_us" : "Enable a regular scan of your services. If you select <code>schedule</code> the scheduling settings from below are applied. If you select <code>once</code> the scan is run only once on start of the application (container) for the time specified in <a href=\"#WEBMON_TIMEOUT\"><code>WEBMON_TIMEOUT</code> setting</a>."
}
},
{
"type": "RUN_SCHD",
"default_value":"0 2 * * *",
"name" : {
"en_us" : "Schedule"
},
"description":
{
"en_us" : "Only enabled if you select <code>schedule</code> in the <a href=\"#WEBMON_RUN\"><code>WEBMON_RUN</code> setting</a>. Make sure you enter the schedule in the correct cron-like format (e.g. validate at <a href=\"https://crontab.guru/\" target=\"_blank\">crontab.guru</a>). For example entering <code>0 4 * * *</code> will run the scan after 4 am in the <a onclick=\"toggleAllSettings()\" href=\"#TIMEZONE\"><code>TIMEZONE</code> you set above</a>. Will be run NEXT time the time passes."
}
},
{
"type": "API_SQL",
"default_value":"SELECT * FROM plugin_website_monitor",
"name" : {
"en_us" : "API endpoint"
},
"description":
{
"en_us" : "You can specify a custom SQL query which will generate a JSON file and then expose it via the <a href=\"/api/plugin_website_monitor.json\" target=\"_blank\"><code>plugin_website_monitor.json</code> file endpoint</a>."
}
},
{
"type": "TIMEOUT",
"default_value":5,
"name" : {
"en_us" : "Run timeout"
},
"description":
{
"en_us" : "Maximum time in seconds to wait for a Website monitor check to finish for any url."
}
},
{
"type": "NOTIFY_ON",
"default_value":["Watched_Value1"],
"options": ["Watched_Value1","Watched_Value2","Watched_Value3","Watched_Value4"],
"name" : {
"en_us" : "Notify on"
},
"description":
{
"en_us" : "Send a notification if selected values change. Use <code>CTRL + Click</code> to select/deselect. <ul> <li><code>Watched_Value1</code> is response status code (e.g.: 200, 404)</li><li><code>Watched_Value2</code> is Latency (not recommended)</li><li><code>Watched_Value3</code> unused </li><li><code>Watched_Value4</code> unused </li></ul>"
}
},
{
"type": "ARGS",
"default_value":"",
"name" : {
"en_us" : "Run timeout"
},
"description":
{
"en_us" : "Change the <a href=\"https://linux.die.net/man/1/dig\" target=\"_blank\">dig utility</a> arguments if you have issues resolving your Internet IP. Arguments are added at the end of the following command: <code>dig +short </code>."
}
}
]
}
```