# dtdl-parser library

A library for parsing and validating [DTDL](https://learn.microsoft.com/en-us/azure/digital-twins/concepts-models) ontologies.

## Installation / Adding to the Package.json

`@digicatapult/dtdl-parser` are available as an [npm package](https://www.npmjs.com/package/@digicatapult/dtdl-parser). In order to use your local version in the project please use `npm link` more on it -> [here](https://docs.npmjs.com/cli/v10/commands/npm-link) and below in this document

```sh
// with npm
npm install @digicatapult/dtdl-parser
```

## Basic Usage

Install dependencies

```javascript
import { parseDirectories,  validateDirectories, getInterop } from "@digicatapult/dtdl-parser"


const parser = await getInterop()
const parsedDtdl = parseDirectories('../dtdl/simple', parser)
```



JS tool to parse DTDL defined Ontologies. 

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@digicatapult/dtdl-parser

dtdl-parser

(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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Bidirectional unicode control characters

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Bin script confusion

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Chronological version anomaly

Project maintainer's SSH key has been compromised.

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Compromised SSH key

(Experimental) Copyleft license information was found.

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Title

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High CVE

Uses debug, reflection and dynamic code execution features.

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Debug access

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Deprecated

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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

Package does not contain any code. It may be removed, is name squatting, or the result of a faulty package publish.

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Empty package

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Name

Extraneous dependency

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File dependency

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Filesystem access

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Git dependency

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GitHub dependency

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AI-detected potential malware

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AI-detected potential security risk

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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.

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Unicode homoglyphs

Contains a dependency which resolves to a remote HTTP URL which could be used to inject untrusted code and reduce overall package reliability.

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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

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

What is an invalid manifest file?

Invalid manifest file

Source files contain invisible characters. This could indicate source obfuscation or a supply chain attack.

What are invisible characters?

Invisible chars

(Experimental) Package license has recently changed.

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License change

(Experimental) Contains an SPDX license exception.

What is a license exception?

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.

What's wrong with long strings?

Long strings

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

What is a major refactor?

Major refactor

This package is malware. We have asked the package registry to remove it.

What is known malware?

Known malware

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What is manifest confusion?

Manifest confusion

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

What is a medium CVE?

Medium CVE

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

What is a mild CVE?

Low CVE

This package contains minified code. This may be harmless in some cases where minified code is included in packaged libraries, however packages on npm should not minify code.

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Minified code

(Experimental) A package's licensing information has fine-grained problems.

Misc. License Issues

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Non-existent author

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Missing dependency

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Missing license

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Missing package tarball

(Experimental) Package contains multiple licenses.

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Mixed license

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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.

What is new author?

New author

Package does not specify a list of contributors or an author in package.json.

Why is contributor and author data important?

No contributors or author data

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No bug tracker

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No README

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Why are missing repositories important?

No repository

Package does not have any tests. This is a strong signal of a poorly maintained or low quality package.

What does no tests mean?

No tests

Package is not semver >=1. This means it is not stable and does not support ^ ranges.

@digicatapult/dtdl-parser

dtdl-parser library

Installation / Adding to the Package.json

Basic Usage

Keywords

Related posts

@digicatapult/dtdl-parser

dtdl-parser library

Installation / Adding to the Package.json

Basic Usage

Keywords

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