> Package captcha provides an easy to use, unopinionated API for captcha generation.

<div>

[![PkgGoDev](https://pkg.go.dev/badge/github.com/steambap/captcha)](https://pkg.go.dev/github.com/steambap/captcha)
[![Build Status](https://github.com/steambap/captcha/workflows/CI/badge.svg)](https://github.com/steambap/captcha/actions?workflow=CI)
[![codecov](https://codecov.io/gh/steambap/captcha/branch/main/graph/badge.svg)](https://codecov.io/gh/steambap/captcha)
[![Go Report Card](https://goreportcard.com/badge/github.com/steambap/captcha)](https://goreportcard.com/report/github.com/steambap/captcha)

</div>

## Why another captcha generator?
I want a simple and framework-independent way to generate captcha. It also should be flexible, at least allow me to pick my favorite font.

## install
```
go get github.com/steambap/captcha
```

## usage
```Go
func handle(w http.ResponseWriter, r *http.Request) {
	// create a captcha of 150x50px
	data, _ := captcha.New(150, 50)

	// session come from other library such as gorilla/sessions
	session.Values["captcha"] = data.Text
	session.Save(r, w)
	// send image data to client
	data.WriteImage(w)
}

```

[documentation](https://pkg.go.dev/github.com/steambap/captcha) |
[example](example/basic/main.go)

## sample image
![image](example/captcha.png)

![image](example/captcha-math.png)

## Compatibility

This package uses embed package from Go 1.16. If for some reasons you have to use pre 1.16 version of Go, reference pre 1.4 version of this module in your go.mod.

## Contributing
If your found a bug, please contribute!
see [contributing.md](contributing.md) for more detail.

## License
[MIT](LICENSE)


centrifuge.hectabit.org/arzumify/go-captcha

go-captcha

(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

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.

What are Chrome extension content scripts?

Chrome: Content Script

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

What are Chrome extension host permissions?

Chrome: Host Permission

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

What are Chrome extension permissions?

Chrome: Permission

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

What are Chrome extension wildcard host permissions?

Chrome: Wildcard Host Permission

Semantic versions published out of chronological order.

What is a chronological version anomaly?

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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Copyleft License

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Title

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High CVE

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Debug access

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Deprecated

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Deprecated license

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Possible typosquat attack

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Dynamic require

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Empty package

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File dependency

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An input argument to this GitHub Action is being passed back as an output. If a user of this action passes untrusted input, it could be used in an insecure manner by consuming workflows.

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AI-detected potential code anomaly

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AI-detected potential malware

AI has determined that this package may contain potential security issues or vulnerabilities.

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AI-detected potential security risk

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Native code

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High entropy strings

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Unicode homoglyphs

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HTTP dependency

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Install scripts

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Invalid manifest file

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Invisible chars

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Long strings

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Known malware

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Manifest confusion

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Low CVE

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Missing dependency

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Missing license

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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.

centrifuge.hectabit.org/arzumify/go-captcha

Why another captcha generator?

install

usage

sample image

Compatibility

Contributing

License

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