107 lines
2.4 KiB
Go
107 lines
2.4 KiB
Go
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package service
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import (
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"errors"
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"github.com/mojocn/base64Captcha"
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)
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type Param struct {
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obj interface{}
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}
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type CaptchaInfo struct {
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Key string `json:"key"`
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Captcha string `json:"captcha"`
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}
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type CaptchaType string
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const (
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CaptchaTypeForDefault CaptchaType = "default"
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CaptchaTypeForAudio CaptchaType = "audio"
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CaptchaTypeForString CaptchaType = "string"
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CaptchaTypeForMath CaptchaType = "math"
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CaptchaTypeForChinese CaptchaType = "chinese"
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)
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var drivers = map[CaptchaType]func() base64Captcha.Driver{
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CaptchaTypeForDefault: captchaForDigit,
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CaptchaTypeForAudio: captchaForAudio,
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CaptchaTypeForString: captchaForString,
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CaptchaTypeForMath: captchaForMath,
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CaptchaTypeForChinese: captchaForChinese,
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}
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var store = base64Captcha.DefaultMemStore
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func captchaForDigit() base64Captcha.Driver {
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drive := new(base64Captcha.DriverDigit)
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drive.Width = 100
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drive.Height = 40
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drive.DotCount = 80
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drive.Length = 6
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drive.MaxSkew = 0.7
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return drive
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}
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func captchaForAudio() base64Captcha.Driver {
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drive := new(base64Captcha.DriverAudio)
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drive.Language = "zh"
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drive.Length = 4
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return drive
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}
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func captchaForString() base64Captcha.Driver {
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drive := new(base64Captcha.DriverString)
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drive.Width = 100
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drive.Width = 40
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drive.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"
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drive.Length = 2
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return drive.ConvertFonts()
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}
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func captchaForMath() base64Captcha.Driver {
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drive := new(base64Captcha.DriverMath)
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drive.Width = 100
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drive.Height = 40
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drive.NoiseCount = 1
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return drive.ConvertFonts()
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}
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func captchaForChinese() base64Captcha.Driver {
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drive := new(base64Captcha.DriverChinese)
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drive.Width = 100
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drive.Width = 40
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drive.Source = "1234567890qwertyuioplkjhgfdsazxcvbnm"
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drive.Length = 4
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return drive.ConvertFonts()
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}
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func (this *Param) Create() (*CaptchaInfo, error) {
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obj := this.obj.(CaptchaType)
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drive, has := drivers[obj]
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if !has {
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return nil, errors.New("参数异常")
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}
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c := base64Captcha.NewCaptcha(drive(), store)
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key, captcha, err := c.Generate()
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if err != nil {
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return nil, err
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}
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return &CaptchaInfo{Key: key, Captcha: captcha}, nil
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}
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func (this *Param) Validate() bool {
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obj := this.obj.(*CaptchaInfo)
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return store.Verify(obj.Key, obj.Captcha, true)
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}
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func Captcha(obj interface{}) *Param {
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return &Param{obj: obj}
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}
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