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# hubot-whos-on-call-mattermost

This script adds a webhook to hubot that can be called periodically to update a [Mattermost](https://mattermost.org) channel's header text with the name of the on-call engineer via pagerduty.

Sadly, Pagerduty doesn't have a webhook event for a change in schedule, so a cron job of some kind will need to trigger the script periodically. The header isn't updated if the on-call engineer hasn't changed.

See [`src/whos-on-call.coffee`](src/whos-on-call.coffee) for full documentation.

**NOTE: This script requires at least version 3.4.0 of [hubot-matteruser](https://www.npmjs.com/package/hubot-matteruser)**

## Installation

`npm install hubot-whos-on-call-mattermost`

Then add **hubot-whos-on-call-attermost** to your `external-scripts.json`:

```json
[
  "whos-on-call-mattermost"
]
```

## Triggering the script

Make an HTTP POST request to `{HUBOT_HOST}/webhook/on-call/:channel_name`

The post body must contain a key called `secret` that should match the environment variable `WHOS_ON_CALL_WEBHOOK_SECRET`. This will ensure only authorized clients can trigger the script.

The post body can optionally contain a `header` key that specifies the text to set the header to. The string `$ENGINEER` in this variable will be replaced with the on-call engineer's name (as given by pagerduty). Not specifying this value will trigger the use of the `WHOS_ON_CALL_HEADER_TEMPLATE` environment variable.


Display the on-call engineer in a channel header. 

hubot-whos-on-call-mattermost

Display the on-call engineer in a channel header

cadecairos

(Experimental) An ambiguous license classifier was found.

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Bad semver

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Bad dependency semver

Source files contain bidirectional unicode control characters. This could indicate a Trojan source supply chain attack. See: trojansource.codes for more information.

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Bidirectional unicode control characters

This package has multiple bin scripts with the same name. This can cause non-deterministic behavior when installing or could be a sign of a supply chain attack.

What is bin script confusion?

Bin script confusion

This Chrome extension includes content scripts that execute JavaScript on specified websites.

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Chrome Extension Content Script

This Chrome extension requests host permissions to access specific websites or domains.

What are Chrome extension host permissions?

Chrome Extension Host Permission

This Chrome extension requests permissions to access browser APIs, user data, or system features.

What are Chrome extension permissions?

Chrome Extension Permission

This Chrome extension requests wildcard host permissions that grant broad access to websites.

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Chrome Extension Wildcard Host Permission

Semantic versions published out of chronological order.

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Chronological version anomaly

Project maintainer's SSH key has been compromised.

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Compromised SSH key

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Debug access

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Dynamic require

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Git dependency

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Contains native code (e.g., compiled binaries or shared libraries). Including native code can obscure malicious behavior.

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Native code

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High entropy strings

Contains unicode homoglyphs which can be used in supply chain confusion attacks.

What are unicode homoglyphs?

Unicode homoglyphs

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HTTP dependency

Install scripts are run when the package is installed. The majority of malware in npm is hidden in install scripts.

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Install scripts

Package has an invalid manifest file and can cause installation problems if you try to use it.

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Invalid manifest file

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What are invisible characters?

Invisible chars

(Experimental) Package license has recently changed.

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License exception

This package is not allowed per your license policy. Review the package's license to ensure compliance.

What is a license policy violation?

License Policy Violation

Contains long string literals, which may be a sign of obfuscated or packed code.

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Long strings

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Modified license exception

(Experimental) Package contains a modified version of an SPDX license. Please read carefully before using this code.

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Modified license

What is network access?

Network access

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Why is contributor and author data important?

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hubot-whos-on-call-mattermost