# @invisible/assert

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Assertion library to allow one to throw custom errors.

`@invisible/assert` uses ES2015 Proxies to intercept calls to `assert`.
All methods of `assert` are available, and it is compatible with both
`Node.js`'s standard assertion library and the one on `npm`.

## Motivation

To allow `assert` to throw custom errors.

## Example

### `assert` encapsulates Custom Errors under an AssertionError, which sucks
```js
const assert = require('assert')
assert(false, Error('yohoo')

{ AssertionError: Error: yohoo
    at Object.<anonymous> (/tmp/a/index.js:2:1)
  name: 'AssertionError',
  actual: false,
  expected: true,
  operator: '==',
  message: 
   Error: yohoo
       at Object.<anonymous> (/tmp/a/index.js:2:15)
  generatedMessage: false }
```

_Stack-trace trimmed for readability._

### `@invisible/assert` throws Custom Errors properly, which is nice

```js
const assert = require('assert')
assert(false, Error('yohoo'))
Error: yohoo
    at Object.<anonymous> (/tmp/a/index.js:2:16)
```

_Stack-trace trimmed for readability._

## Installation

```sh
npm install @invisible/assert
```

NB: The `npm` library `assert` is not a dependency in `package.json` in order to
allow one to use Node.js's standard `assert` library.


Proxy for assert that accepts custom Errors. 

Meet the Socket Team at BlackHat and DEF CON in Las Vegas, Aug 4-6

@invisible/assert

Proxy for assert that accepts custom Errors

keenahn

gunar

invisible-bot

kewitz

rodrigo4244

assert

(Experimental) An ambiguous license classifier was found.

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Ambiguous License Classifier

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Bad text encoding

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Bad semver

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Bad dependency semver

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Bidirectional unicode control characters

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Bin script confusion

This Chrome extension includes a content script '{scriptFile}' that runs on websites matching '{matches}'.

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Chrome Extension Content Script

This Chrome extension requests access to '{host}'.

What are Chrome extension host permissions?

Chrome Extension Host Permission

This Chrome extension uses the '{permission}' permission.

What are Chrome extension permissions?

Chrome Extension Permission

This Chrome extension requests broad access to websites with the pattern '{host}'.

What are Chrome extension wildcard host permissions?

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.

What is a compromised SSH key?

Compromised SSH key

(Experimental) Copyleft license information was found.

What do I need to know about license files?

Copyleft License

Contains a Critical Common Vulnerability and Exposure (CVE).

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Title

Critical CVE

Contains a high severity Common Vulnerability and Exposure (CVE).

What is a CVE?

High CVE

Uses debug, reflection and dynamic code execution features.

What is debug access?

Debug access

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Deprecated

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Deprecated SPDX exception

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Deprecated license

Package name is similar to other popular packages and may not be the package you want.

What is a typosquat?

Possible typosquat attack

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Dynamic require

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Empty package

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Environment variable access

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Name

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File dependency

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Filesystem access

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What are wildcard dependencies?

Wildcard dependency

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What are git dependencies?

Git dependency

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What are GitHub dependencies?

GitHub dependency

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AI-detected potential code anomaly

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AI-detected potential malware

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AI-detected potential security risk

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

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Native code

Contains high entropy strings. This could be a sign of encrypted data, leaked secrets or obfuscated code.

What are high entropy strings?

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.

What is an install script?

Install scripts

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What is an invalid manifest file?

Invalid manifest file

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What are invisible characters?

Invisible chars

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License change

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What is a license exception?

License exception

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What is a license policy violation?

License Policy Violation

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

What's wrong with long strings?

Long strings

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Major refactor

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Known malware

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What is manifest confusion?

Manifest confusion

Contains a medium severity Common Vulnerability and Exposure (CVE).

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Medium CVE

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What is a mild CVE?

Low CVE

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What's wrong with minified code?

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Misc. License Issues

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Mixed license

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What is a modified license exception?

Modified license exception

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What is a modified license?

Modified license

What is network access?

Network access

A new npm collaborator published a version of the package for the first time. New collaborators are usually benign additions to a project, but do indicate a change to the security surface area of a package.

@invisible/assert