captcha of base64 and diversity

Overview

A flexible and various captcha package

Test Go Report Card GoDoc Build Status codecov stability-stable Foundation

Base64captcha supports any unicode character and can easily be customized to support Math Chinese Korean Japanese Russian Arabic etc.

1. 📖 📖 📖 Doc & Demo

2. 🚀 🚀 🚀 Quick start

2.1 🎬 🎬 🎬 Use history version

Tag v1.2.2

go get github.com/mojocn/[email protected]

or edit your go.mod file to

github.com/mojocn/[email protected]

2.2 📥 📥 📥 Download package

go get -u github.com/mojocn/base64Captcha

For Gopher from mainland China without VPN go get golang.org/x/image failure solution:

  • go version > 1.11
  • set env GOPROXY=https://goproxy.io

2.3 🏂 🏂 🏂 How to code with base64Captcha

2.3.1 🏇 🏇 🏇 Implement Store interface or use build-in memory store

type Store interface {
	// Set sets the digits for the captcha id.
	Set(id string, value string)

	// Get returns stored digits for the captcha id. Clear indicates
	// whether the captcha must be deleted from the store.
	Get(id string, clear bool) string
	
    //Verify captcha's answer directly
	Verify(id, answer string, clear bool) bool
}

2.3.2 🏄 🏄 🏄 Implement Driver interface or use one of build-in drivers

There are some build-in drivers:

  1. Build-in Driver Digit
  2. Build-in Driver String
  3. Build-in Driver Math
  4. Build-in Driver Chinese
// Driver captcha interface for captcha engine to to write staff
type Driver interface {
	//DrawCaptcha draws binary item
	DrawCaptcha(content string) (item Item, err error)
	//GenerateIdQuestionAnswer creates rand id, content and answer
	GenerateIdQuestionAnswer() (id, q, a string)
}

2.3.3 🚴 🚴 🚴 ‍Core code captcha.go

captcha.go is the entry of base64Captcha which is quite simple.

package base64Captcha

import (
	"math/rand"
	"time"
)

func init() {
	//init rand seed
	rand.Seed(time.Now().UnixNano())
}

// Captcha captcha basic information.
type Captcha struct {
	Driver Driver
	Store  Store
}

//NewCaptcha creates a captcha instance from driver and store
func NewCaptcha(driver Driver, store Store) *Captcha {
	return &Captcha{Driver: driver, Store: store}
}

//Generate generates a random id, base64 image string or an error if any
func (c *Captcha) Generate() (id, b64s string, err error) {
	id,content, answer := c.Driver.GenerateIdQuestionAnswer()
	item, err := c.Driver.DrawCaptcha(content)
	if err != nil {
		return "", "", err
	}
	c.Store.Set(id, answer)
	b64s = item.EncodeB64string()
	return
}

//Verify by a given id key and remove the captcha value in store,
//return boolean value.
//if you has multiple captcha instances which share a same store.
//You may want to call `store.Verify` method instead.
func (c *Captcha) Verify(id, answer string, clear bool) (match bool) {
	match = c.Store.Get(id, clear) == answer
	return
}

2.3.4 🚵 🚵 🚵 ‍Generate Base64(image/audio) string

func (c *Captcha) Generate() (id, b64s string, err error) {
	id,content, answer := c.Driver.GenerateIdQuestionAnswer()
	item, err := c.Driver.DrawCaptcha(content)
	if err != nil {
		return "", "", err
	}
	c.Store.Set(id, answer)
	b64s = item.EncodeB64string()
	return
}

2.3.5 🤸 🤸 🤸 Verify Answer

//if you has multiple captcha instances which shares a same store. You may want to use `store.Verify` method instead.
//Verify by given id key and remove the captcha value in store, return boolean value.
func (c *Captcha) Verify(id, answer string, clear bool) (match bool) {
	match = c.Store.Get(id, clear) == answer
	return
}

2.3.6 🏃 🏃 🏃 ‍Full Example

// example of HTTP server that uses the captcha package.
package main

import (
	"encoding/json"
	"fmt"
	"github.com/mojocn/base64Captcha"
	"log"
	"net/http"
)

//configJsonBody json request body.
type configJsonBody struct {
	Id            string
	CaptchaType   string
	VerifyValue   string
	DriverAudio   *base64Captcha.DriverAudio
	DriverString  *base64Captcha.DriverString
	DriverChinese *base64Captcha.DriverChinese
	DriverMath    *base64Captcha.DriverMath
	DriverDigit   *base64Captcha.DriverDigit
}

var store = base64Captcha.DefaultMemStore

// base64Captcha create http handler
func generateCaptchaHandler(w http.ResponseWriter, r *http.Request) {
	//parse request parameters
	decoder := json.NewDecoder(r.Body)
	var param configJsonBody
	err := decoder.Decode(&param)
	if err != nil {
		log.Println(err)
	}
	defer r.Body.Close()
	var driver base64Captcha.Driver

	//create base64 encoding captcha
	switch param.CaptchaType {
	case "audio":
		driver = param.DriverAudio
	case "string":
		driver = param.DriverString.ConvertFonts()
	case "math":
		driver = param.DriverMath.ConvertFonts()
	case "chinese":
		driver = param.DriverChinese.ConvertFonts()
	default:
		driver = param.DriverDigit
	}
	c := base64Captcha.NewCaptcha(driver, store)
	id, b64s, err := c.Generate()
	body := map[string]interface{}{"code": 1, "data": b64s, "captchaId": id, "msg": "success"}
	if err != nil {
		body = map[string]interface{}{"code": 0, "msg": err.Error()}
	}
	w.Header().Set("Content-Type", "application/json; charset=utf-8")
	json.NewEncoder(w).Encode(body)
}

// base64Captcha verify http handler
func captchaVerifyHandle(w http.ResponseWriter, r *http.Request) {

	//parse request json body
	decoder := json.NewDecoder(r.Body)
	var param configJsonBody
	err := decoder.Decode(&param)
	if err != nil {
		log.Println(err)
	}
	defer r.Body.Close()
	//verify the captcha
	body := map[string]interface{}{"code": 0, "msg": "failed"}
	if store.Verify(param.Id, param.VerifyValue, true) {
		body = map[string]interface{}{"code": 1, "msg": "ok"}
	}

	//set json response
	w.Header().Set("Content-Type", "application/json; charset=utf-8")

	json.NewEncoder(w).Encode(body)
}

//start a net/http server
func main() {
	//serve Vuejs+ElementUI+Axios Web Application
	http.Handle("/", http.FileServer(http.Dir("./static")))

	//api for create captcha
	http.HandleFunc("/api/getCaptcha", generateCaptchaHandler)

	//api for verify captcha
	http.HandleFunc("/api/verifyCaptcha", captchaVerifyHandle)

	fmt.Println("Server is at :8777")
	if err := http.ListenAndServe(":8777", nil); err != nil {
		log.Fatal(err)
	}
}

2.3.7 Example Use Etcd as store

captcha with etcd database as store

3. 🎨 🎨 🎨 Customization

You can customize your captcha display image by implementing interface driver and interface item.

There are some example for your reference.

  1. DriverMath
  2. DriverChinese
  3. ItemChar

You can even design the captcha struct to whatever you prefer.

4. 💖 💖 💖 Thanks

5. 🍭 🍭 🍭 Licence

base64Captcha source code is licensed under the Apache Licence, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0.html).

Comments
  • generate函数提示错误

    generate函数提示错误

    大概的错误信息

    invalid argument to Intn
    /usr/local/Cellar/go/1.13.8/libexec/src/math/rand/rand.go:169 (0x119266e)
            (*Rand).Intn: panic("invalid argument to Intn")
    /usr/local/Cellar/go/1.13.8/libexec/src/math/rand/rand.go:329 (0x119309f)
            Intn: func Intn(n int) int { return globalRand.Intn(n) }
    /Users/cpp/golang/pkg/mod/github.com/mojocn/[email protected]/random_math.go:78 (0x1c8c238)
            randIntRange: return rand.Intn(to-from) + from
    /Users/cpp/golang/pkg/mod/github.com/mojocn/[email protected]/item_digit.go:165 (0x1c8af62)
            (*ItemDigit).drawDigit: y += randIntRange(-r, r)
    /Users/cpp/golang/pkg/mod/github.com/mojocn/[email protected]/driver_digit.go:70 (0x1c84034)
            (*DriverDigit).DrawCaptcha: itemDigit.drawDigit(digitFontData[n], x, y)
    /Users/cpp/golang/pkg/mod/github.com/mojocn/[email protected]/captcha.go:33 (0x1c82aee)
            (*Captcha).Generate: item, err := c.Driver.DrawCaptcha(content)
    
    
    
    opened by nagaame 7
  • 我该如何获得验证码正确的数值

    我该如何获得验证码正确的数值

    目前通过 GenerateCaptcha()VerifyCaptcha() 已经可以正常生成验证码以及验证验证码的准确性

    现在需求是 给出 正确答案以及混淆值,让用户选择以达到验证效果,我应该如何获取答案值 61

    log.Println(cap)
    
    &{{60+1=? 61 240 60} 0xc4205ba000 0}
    
    opened by du5 7
  • The b64s can not use

    The b64s can not use

    用代码生成一个DriverString类型的,最后返回的b64s无法正常显示,例如:data:image/png;base64,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

    opened by Icarus9913 6
  • 我不知道是我电脑问题还是怎么回事,用demo都无法运行

    我不知道是我电脑问题还是怎么回事,用demo都无法运行

    Hello, I found that neither demo nor self configuration can run, and the error has been reported all the time 你好,我发现用demo还是自我配置都是不可以运行的,一直报错

    2019/12/13 10:30:39 EOF 2019/12/13 10:30:39 http: panic serving [::1]:61416: runtime error: invalid memory address or nil pointer dereference goroutine 25728 [running]: net/http.(*conn).serve.func1(0xc000259360) D:/use/Go/src/net/http/server.go:1767 +0x140 panic(0x712300, 0xca1940) D:/use/Go/src/runtime/panic.go:679 +0x1c0 github.com/mojocn/base64Captcha.(*DriverDigit).GenerateIdQuestionAnswer(0x0, 0xc000265d70, 0xc000092000, 0x4, 0xc0000bd800, 0xc000092030, 0xcae360) D:/path/gopath/pkg/mod/github.com/mojocn/[email protected]/driver_digit.go:46 +0x45 github.com/mojocn/base64Captcha.(*Captcha).Generate(0xc000265b10, 0x1, 0x1, 0x7e3480, 0xc000032040, 0x8, 0xc0005af9d0) D:/path/gopath/pkg/mod/github.com/mojocn/[email protected]/captcha.go:42 +0x41 main.generateCaptchaHandler(0x7e90e0, 0xc00015ba40, 0xc0000c1c00) D:/mywork/web/kongbu/main.go:52 +0x238 net/http.HandlerFunc.ServeHTTP(0x78f920, 0x7e90e0, 0xc00015ba40, 0xc0000c1c00) D:/use/Go/src/net/http/server.go:2007 +0x4b net/http.(*ServeMux).ServeHTTP(0xcae320, 0x7e90e0, 0xc00015ba40, 0xc0000c1c00) D:/use/Go/src/net/http/server.go:2387 +0x1c4 net/http.serverHandler.ServeHTTP(0xc0000520e0, 0x7e90e0, 0xc00015ba40, 0xc0000c1c00) D:/use/Go/src/net/http/server.go:2802 +0xab net/http.(*conn).serve(0xc000259360, 0x7e9620, 0xc000a5b840) D:/use/Go/src/net/http/server.go:1890 +0x87c created by net/http.(*Server).Serve D:/use/Go/src/net/http/server.go:2928 +0x38b exit status 2

    opened by yilcool 6
  • 完整案例代码运行报空指针,求指教,谢谢

    完整案例代码运行报空指针,求指教,谢谢

    2020/04/07 00:19:01 http: panic serving 127.0.0.1:8414: runtime error: invalid memory address or nil pointer dereference goroutine 48 [running]: net/http.(*conn).serve.func1(0xc0002501e0) D:/Program Files/go/src/net/http/server.go:1767 +0x140 panic(0x704740, 0xc89920) D:/Program Files/go/src/runtime/panic.go:679 +0x1c0 github.com/mojocn/base64Captcha.(*DriverDigit).GenerateIdQuestionAnswer(0x0, 0xc000305d70, 0xc0000b2000, 0x4, 0xc00011e000, 0xc0000b2030, 0xc962e0) D:/Malaysia/code/Go/fx-go/pkg/mod/github.com/mojocn/[email protected]/driver_digit.go:44 +0x45 github.com/mojocn/base64Captcha.(*Captcha).Generate(0xc000305b10, 0x1, 0x1, 0x7d27a0, 0xc000058030, 0x8, 0xc0003059d0) D:/Malaysia/code/Go/fx-go/pkg/mod/github.com/mojocn/[email protected]/captcha.go:34 +0x41

    完整示例代码运行一直报这个错误,不知道是哪里问题,求指教,谢谢

    opened by richfuns 5
  • runtime error: invalid memory address or nil pointer dereference

    runtime error: invalid memory address or nil pointer dereference

    2020/01/15 20:02:37 http: panic serving 127.0.0.1:64947: runtime error: invalid memory address or nil pointer dereference goroutine 36 [running]: net/http.(*conn).serve.func1(0xc00022e000) /usr/local/Cellar/go/1.12.4/libexec/src/net/http/server.go:1769 +0x139 panic(0x1309aa0, 0x18b27f0) /usr/local/Cellar/go/1.12.4/libexec/src/runtime/panic.go:522 +0x1b5 github.com/mojocn/base64Captcha.(*DriverDigit).GenerateIdQuestionAnswer(0x0, 0xbf7fddb76af07a38, 0x10f5c6f9d, 0x4, 0xc0001d4e00, 0xc0000cc030, 0x18be7e0) /Users/dev/go/src/github.com/mojocn/base64Captcha/driver_digit.go:44 +0x3f github.com/mojocn/base64Captcha.(*Captcha).Generate(0xc000237be8, 0x13d5c58, 0x18db068, 0x13d1f20, 0xc000084030, 0x0, 0xc000237c80) /Users/dev/go/src/github.com/mojocn/base64Captcha/captcha.go:32 +0x3d main.generateCaptchaHandler(0x13d8080, 0xc0000d60e0, 0xc00029c000) /Users/Desktop/test/capture.go:52 +0x230 net/http.HandlerFunc.ServeHTTP(0x137cfd8, 0x13d8080, 0xc0000d60e0, 0xc00029c000) /usr/local/Cellar/go/1.12.4/libexec/src/net/http/server.go:1995 +0x44 net/http.(*ServeMux).ServeHTTP(0x18be700, 0x13d8080, 0xc0000d60e0, 0xc00029c000) /usr/local/Cellar/go/1.12.4/libexec/src/net/http/server.go:2375 +0x1d6 net/http.serverHandler.ServeHTTP(0xc00008c9c0, 0x13d8080, 0xc0000d60e0, 0xc00029c000) /usr/local/Cellar/go/1.12.4/libexec/src/net/http/server.go:2774 +0xa8 net/http.(*conn).serve(0xc00022e000, 0x13d8680, 0xc000058480) /usr/local/Cellar/go/1.12.4/libexec/src/net/http/server.go:1878 +0x851 created by net/http.(*Server).Serve /usr/local/Cellar/go/1.12.4/libexec/src/net/http/server.go:2884 +0x2f4

    opened by fengjinhai 5
  • 无法在Windows下载代码

    无法在Windows下载代码

    Windows上无法创建带特殊符号的文件(28+58=?.png),请改下名字。

    grouped write of manifest, lock and vendor: error while writing out vendor tree: failed to write dep tree: failed to export github.com/mojocn/base64Captcha: error: unable to create file C:\Users\admin\AppData\Local\Temp\dep936777486\vendor\github.com\mojocn\base64Captcha\examples/static/28+58=?.png: Invalid argument
    
    opened by rsinensis 5
  • fix(redis): Fixed a get/set error not returning

    fix(redis): Fixed a get/set error not returning

    Since the previous "store.Store" interface did not return an error, the upper caller could not know that the storage error occurred. This problem will cause the upper caller to know the specific error message when a storage error occurs during the generation or verification of the verification code.

    opened by Luckyboys 4
  • 大佬好,验证码校验貌似有bug,在清除后二次验证时会返回true

    大佬好,验证码校验貌似有bug,在清除后二次验证时会返回true

    package utils
    
    import (
    	"github.com/mojocn/base64Captcha"
    	"image/color"
    )
    
    type Captcha struct {
    	Id   string
    	BS64 string
    	Code int
    }
    
    // 定义共同使用的存储
    var store = base64Captcha.DefaultMemStore
    
    // GetCaptcha 生成验证码
    func GetCaptcha() (id string, base64 string, err error) {
    	rgbaColor := color.RGBA{0, 0, 0, 0}
    	fonts := []string{"wqy-microhei.ttc"}
    	//生成driver,高,宽,背景文字的干扰,画线的条数,背景颜色的指针,字体仓库(nil为默认),字体切片(可以使用多种字体)
    	driver := base64Captcha.NewDriverMath(50, 140, 0, 1, &rgbaColor, nil, fonts)
    
    	//使用前面的driver和store 生成验证码的实例
    	captcha := base64Captcha.NewCaptcha(driver, store)
    
    	//生成验证码
    	id, base64, err = captcha.Generate()
    	return id, base64, err
    }
    
    // VerityCaptcha 校验验证码
    func VerityCaptcha(id string, ret_captcha string) bool {
    	return store.Verify(id, ret_captcha, ture) //clear 为ture 时只验证一次就销毁了,会有bug返回为true ,false不销毁
    }
    
    //调用时
    func (l *LoginController) Post() {
    	username := l.GetString("username")
    	password := l.GetString("password")
    	captcha := l.GetString("captcha")
    	captcha_id := l.GetString("captcha_id")
    
    	//验证码校验
    	fmt.Println("captcha:",captcha)
    	is_ok := utils.VerityCaptcha(captcha_id, captcha)
    	fmt.Println("is_ok:",is_ok)
    
    //我在页面上不输入验证码,第一次返回正确false,第二次返回就true了
    captcha: 
    is_ok: false
    2021/07/29 10:35:11.541 [D] [router.go:925]  |      127.0.0.1| 200 |     7.3549ms|   match| POST     /     r:/
    captcha: 
    is_ok: true
    

    刚学习go的菜鸟一枚,再者,大佬您这文档真是没法看啊,啥啥看不懂,我这还是看知了课堂里的老师教给用的

    opened by zhangbest5 3
  • goland 下载报证书问题

    goland 下载报证书问题

    GOPROXY=https://goproxy.cn,direct go version go1.16 windows/amd64

    go: github.com/mojocn/[email protected]: Get "https://proxy.golang.cn/github.com/mojocn/base64%21captcha/@v/v1.3.4.mod": x509: certificate signed by unknown authority

    opened by zh851122 3
  • More breaking API changes

    More breaking API changes

    I've run into errors in my code that uses base64Captcha that worked with previous base64Captcha versions. The errors I'm currently getting are

    default: src/captcha.go:12:17: undefined: base64Captcha.ConfigCharacter
    default: src/captcha.go:24:19: undefined: base64Captcha.ConfigCharacter
    default: src/captcha.go:75:17: undefined: base64Captcha.VerifyCaptcha
    default: src/captcha.go:103:22: undefined: base64Captcha.CaptchaInterface
    default: src/captcha.go:104:31: undefined: base64Captcha.GenerateCaptcha
    default: src/captcha.go:105:16: undefined: base64Captcha.CaptchaWriteToBase64Encoding
    

    I know the code in question worked previously, but this is the second time that changes to this package's API have broken my code. Is the API so unstable that I can't reliably use it without having to constantly uninstall and reinstall the package just to make sure that I don't have to rewrite code that shouldn't have to be rewritten? The main.go.md In the root directory of this repo even uses the previous API.

    And I'd use a previous version/tag but for compatibility reasons, I'm not (yet) using Go's module feature, and for the record, the suggested go get github.com/mojocn/[email protected] command in README.md fails with the error go: cannot use [email protected] syntax in GOPATH mode

    opened by Eggbertx 3
  • feat(inmemory): verify method must check the empty id and answer.

    feat(inmemory): verify method must check the empty id and answer.

    we can use Id=<unexisted_id>, value="" to avoid captcha verify. e.g.

    curl 'https://captcha.mojotv.cn/api/verifyCaptcha' \
      -H 'content-type: application/json;charset=UTF-8' \
      --data-raw '{"ShowLineOptions":[],"CaptchaType":"string","Id":"zsTJGNGtesc9BCnfSxMv","VerifyValue":"","DriverAudio":{"Length":6,"Language":"zh"},"DriverString":{"Height":60,"Width":240,"ShowLineOptions":0,"NoiseCount":0,"Source":"1234567890qwertyuioplkjhgfdsazxcvbnm","Length":6,"Fonts":["wqy-microhei.ttc"],"BgColor":{"R":0,"G":0,"B":0,"A":0}},"DriverMath":{"Height":60,"Width":240,"ShowLineOptions":0,"NoiseCount":0,"Length":6,"Fonts":["wqy-microhei.ttc"],"BgColor":{"R":0,"G":0,"B":0,"A":0}},"DriverChinese":{"Height":60,"Width":320,"ShowLineOptions":0,"NoiseCount":0,"Source":"设想,你在,处理,消费者,的音,频输,出音,频可,能无,论什,么都,没有,任何,输出,或者,它可,能是,单声道,立体声,或是,环绕立,体声的,,不想要,的值","Length":2,"Fonts":["wqy-microhei.ttc"],"BgColor":{"R":125,"G":125,"B":0,"A":118}},"DriverDigit":{"Height":80,"Width":240,"Length":5,"MaxSkew":0.7,"DotCount":80}}' 
    
    opened by laushunyu 1
  • mat be use store.Verify()

    mat be use store.Verify()

    https://github.com/mojocn/base64Captcha/blob/1a6d007056a31d2525bb29780d37fc396634caee/captcha.go#L51

    Store.verify should be used here, otherwise custom case-insensitive authentication cannot be implemented

    opened by fifsky 0
  • base64Captcha 库没有 SetCustomStore 方法

    base64Captcha 库没有 SetCustomStore 方法

    Hi,

    @mojocn 你好,感谢开发 base64Captcha。

    现在有个问题不确定是不是库的问题,遂来请教下。

    问题描述:

    按照 main.go.md 中的定义:

    customeStore := customizeRdsStore{client}
    
    base64Captcha.SetCustomStore(&customeStore)
    

    我尝试在自己的代码库里添加 SetCustomStore 方法,传递自定义的 customeStore client,发现找不到 SetCustomStore 方法,搜索了代码库也没找到这个方法,是这个方法要自己定义吗?还是代码库里将它删掉了?

    image

    烦请指点,感谢。:)

    opened by hxia043 0
Releases(v1.3.4)
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mojocn
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