# httpsfv: Structured Field Values for HTTP in Go

This [Go (golang)](https://golang.org) library implements parsing and serialization for [Structured Field Values for HTTP (RFC 9651 and 8941)](https://httpwg.org/specs/rfc9651.html).

[![PkgGoDev](https://pkg.go.dev/badge/github.com/dunglas/httpsfv)](https://pkg.go.dev/github.com/dunglas/httpsfv)
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[![Go Report Card](https://goreportcard.com/badge/github.com/dunglas/httpsfv)](https://goreportcard.com/report/github.com/dunglas/httpsfv)

## Features

* Fully implementing the RFC
* Compliant with [the official test suite](https://github.com/httpwg/structured-field-tests)
* Unit and fuzz tested
* Strongly-typed
* Fast (see [the benchmark](httpwg_test.go))
* No dependencies

## Docs

[Browse the documentation on Go.dev](https://pkg.go.dev/github.com/dunglas/httpsfv).

## Credits

Created by [Kévin Dunglas](https://dunglas.fr). Sponsored by [Les-Tilleuls.coop](https://les-tilleuls.coop).


Socket Acquires Coana to Bring Reachability Analysis to Every Appsec Team

github.com/dunglas/httpsfv

httpsfv

(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

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.

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

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Possible typosquat attack

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Dynamic require

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Empty package

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Name

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Filesystem access

Package has a dependency with a floating version range. This can cause issues if the dependency publishes a new major version.

What are wildcard dependencies?

Wildcard dependency

Contains a dependency which resolves to a remote git URL. Dependencies fetched from git URLs are not immutable and can be used to inject untrusted code or reduce the likelihood of a reproducible install.

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Git dependency

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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.

Why is native code a concern?

Native code

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

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

What are http dependencies?

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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Invisible chars

(Experimental) Package license has recently changed.

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License change

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License exception

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

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License Policy Violation

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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.

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Known malware

This package has inconsistent metadata. This could be malicious or caused by an error when publishing the package.

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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

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

The package was published by an npm account that no longer exists.

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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

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.

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No contributors or author data

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No bug tracker

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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.

github.com/dunglas/httpsfv

httpsfv: Structured Field Values for HTTP in Go

Features

Docs

Credits

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