First, add the following to your Cargo.toml:

[dependencies]
salvo-captcha = "0.4"

Or use cargo add to add the dependency to your Cargo.toml:

$ cargo add salvo-captcha

See the examples directory for a complete example. You can also see the implemented generators, storages, and finders in the source code.

There is a default storage, which is MemoryStorage it's a simple in-memory storage. You can implement your own storage by implementing the CaptchaStorage trait.

A high-performance, concurrent, content-addressable disk cache. The storage is based on cacache-rs crate. to use it, you need to enable the cacache-storage feature.

[dependencies]
salvo-captcha = { version = "0.3", features = ["cacache-storage"] }

We provide fully customizable query parameters, form fields, and headers to find the captcha token and the captcha answer. You can implement your own finder by implementing the CaptchaFinder trait.

We provide SimpleCaptchaGenerator which is a simple captcha generator based on the captcha crate, you can enable it by enabling the simple-generator feature.

[dependencies]
salvo-captcha = { version = "0.3", features = ["simple-generator"] }

You can implement your own generator by implementing the CaptchaGenerator trait.

In this table, you can see the difference between the difficulties and the name of the captcha.

Name	Easy	Medium	Hard
Normal
SlightlyTwisted
VeryTwisted

• Github (https://github.com/TheAwiteb/salvo-captcha)
• Codeberg (https://codeberg.org/awiteb/salvo-captcha)

• My Git (https://git.4rs.nl/awiteb/salvo-captcha.git)

This project is licensed under the MIT license for more details see LICENSE or http://opensource.org/licenses/MIT.