# tiny_captcha : rust 轻量级验证码生成器，可以编译成 wasm

[→ 中文说明](#cn)

# tiny_captcha : rust lightweight captcha generator that compiles to wasm

[Project documentation](https://docs.rs/tiny_captcha)

Lightweight CAPTCHA generator, relying only on rand and gif, can be compiled into wasm.

Based on [Ivan Tikhonov's captcha library](http://brokestream.com/captcha.html), rewritten with [c2rust](https://c2rust.com) code conversion.

The font file is from https://github.com/ITikhonov/captcha/blob/master/font.h and is ASCII artwork, make and then use unfont to generate the array.

Use the demo :

```rust
use anyhow::Result;
use std::{env::current_exe, fs::File};
use tiny_captcha::gif;

fn main() -> Result<()> {
  for i in 1..=10 {
    let exe = current_exe()?;
    let gif_path = exe.parent().unwrap().join(format!("{}.gif", i));

    let word = gif(&mut File::create(&gif_path)?);
    println!("{} {}", word, gif_path.display());
  }
  Ok(())
}
```

The output is shown :

![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/1.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/2.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/3.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/4.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/5.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/6.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/7.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/8.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/9.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/10.gif)

<b id=cn></b>

# tiny_captcha : rust 轻量级验证码生成器，可以编译成 wasm

[项目文档](https://docs.rs/tiny_captcha)

轻量级验证码生成器，仅依赖于 rand 和 gif ，可以编译成 wasm 。

在 [Ivan Tikhonov 的验证码库](http://brokestream.com/captcha.html) 的基础上，用 [c2rust](https://c2rust.com) 转代码后改写。

字体文件来自 https://github.com/ITikhonov/captcha/blob/master/font.h ，是 ASCII 艺术字 , make 之后用 unfont 生成数组。

使用演示 :

```rust
#include ./examples/main.rs
```

输出展示 :

![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/1.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/2.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/3.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/4.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/5.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/6.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/7.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/8.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/9.gif) ![](https://raw.githubusercontent.com/rmw-link/tiny_captcha/master/gif/10.gif)

### 关于

本项目隶属于 **人民网络 ([rmw.link](//rmw.link))** 代码计划。

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