118 lines
3.2 KiB
Go
118 lines
3.2 KiB
Go
/*
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* @desc:验证码处理
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* @company:云南奇讯科技有限公司
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* @Author: yixiaohu<yxh669@qq.com>
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* @Date: 2022/9/28 9:01
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*/
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package captcha
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import (
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"context"
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"errors"
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"github.com/gogf/gf/v2/encoding/gbase64"
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"github.com/gogf/gf/v2/frame/g"
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"github.com/gogf/gf/v2/text/gstr"
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"github.com/gogf/gf/v2/util/gconv"
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"github.com/mojocn/base64Captcha"
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"github.com/tiger1103/gfast/v3/internal/app/common/service"
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captchaV2 "github.com/wenlng/go-captcha/captcha"
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"net/url"
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)
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func init() {
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service.RegisterCaptcha(New())
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}
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func New() service.ICaptcha {
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return &sCaptcha{
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driver: &base64Captcha.DriverString{
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Height: 80,
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Width: 240,
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NoiseCount: 50,
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ShowLineOptions: 20,
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Length: 4,
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Source: "abcdefghjkmnpqrstuvwxyz23456789",
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Fonts: []string{"chromohv.ttf"},
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},
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store: base64Captcha.DefaultMemStore,
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}
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}
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type sCaptcha struct {
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driver *base64Captcha.DriverString
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store base64Captcha.Store
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}
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// GetCaptchaV2 创建点击验证码数据
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func (s *sCaptcha) GetCaptchaV2(ctx context.Context) (dots map[int]captchaV2.CharDot, img, thumb, key string, err error) {
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capt := captchaV2.GetCaptcha()
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dots, img, thumb, key, err = capt.Generate()
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return
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}
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// CheckCaptchaV2 验证captchaV2数据
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func (s *sCaptcha) CheckCaptchaV2(ctx context.Context, key string, dots string, removeKey ...bool) (err error) {
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dotsStr, err := gbase64.DecodeToString(dots)
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if err != nil {
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return err
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}
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// 进行Url转码，防止特殊字符问题
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dotsStr, err = url.QueryUnescape(dotsStr)
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dotsMap := gconv.Maps(dotsStr)
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if dotsMap == nil {
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return errors.New("提交的数据无效")
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}
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cacheDots := service.Cache().Get(ctx, "captchaV2_"+key)
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if cacheDots == nil {
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return errors.New("未找到验证数据")
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}
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var dotsMap2 map[int]captchaV2.CharDot
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err = cacheDots.Scan(&dotsMap2)
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if len(dotsMap) != len(dotsMap2) {
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return errors.New("人机验证失败")
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}
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g.Log().Info(ctx, dotsMap, dotsMap2)
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for i, dot := range dotsMap {
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checkStatus := captchaV2.CheckPointDistWithPadding(gconv.Int64(dot["x"]), gconv.Int64(dot["y"]), int64(dotsMap2[i].Dx), int64(dotsMap2[i].Dy), int64(dotsMap2[i].Width), int64(dotsMap2[i].Height), 10)
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if checkStatus == false {
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return errors.New("人机验证失败")
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}
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}
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if len(removeKey) > 0 && removeKey[0] {
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service.Cache().Remove(ctx, "captchaV2_"+key)
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}
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return
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}
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var (
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captcha = sCaptcha{
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driver: &base64Captcha.DriverString{
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Height: 80,
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Width: 240,
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NoiseCount: 50,
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ShowLineOptions: 20,
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Length: 4,
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Source: "abcdefghjkmnpqrstuvwxyz23456789",
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Fonts: []string{"chromohv.ttf"},
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},
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store: base64Captcha.DefaultMemStore,
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}
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)
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// GetVerifyImgString 获取字母数字混合验证码
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func (s *sCaptcha) GetVerifyImgString(ctx context.Context) (idKeyC string, base64stringC string, err error) {
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driver := s.driver.ConvertFonts()
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c := base64Captcha.NewCaptcha(driver, s.store)
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idKeyC, base64stringC, err = c.Generate()
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return
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}
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// VerifyString 验证输入的验证码是否正确
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func (s *sCaptcha) VerifyString(id, answer string) bool {
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c := base64Captcha.NewCaptcha(s.driver, s.store)
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answer = gstr.ToLower(answer)
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return c.Verify(id, answer, true)
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}
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