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80 lines
2.0 KiB
Go
80 lines
2.0 KiB
Go
package waf
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import (
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"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
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"github.com/TeaOSLab/EdgeNode/internal/utils"
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"github.com/TeaOSLab/EdgeNode/internal/waf/requests"
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"github.com/iwind/TeaGo/maps"
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"github.com/iwind/TeaGo/types"
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"net/http"
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"net/url"
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"strings"
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"time"
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)
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const (
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CaptchaSeconds = 600 // 10 minutes
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CaptchaPath = "/WAF/VERIFY/CAPTCHA"
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)
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type CaptchaAction struct {
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Life int32 `yaml:"life" json:"life"`
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Language string `yaml:"language" json:"language"` // 语言，zh-CN, en-US ...
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AddToWhiteList bool `yaml:"addToWhiteList" json:"addToWhiteList"` // 是否加入到白名单
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Scope string `yaml:"scope" json:"scope"`
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}
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func (this *CaptchaAction) Init(waf *WAF) error {
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return nil
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}
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func (this *CaptchaAction) Code() string {
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return ActionCaptcha
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}
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func (this *CaptchaAction) IsAttack() bool {
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return false
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}
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func (this *CaptchaAction) WillChange() bool {
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return true
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}
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func (this *CaptchaAction) Perform(waf *WAF, group *RuleGroup, set *RuleSet, request requests.Request, writer http.ResponseWriter) (allow bool) {
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// 是否在白名单中
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if SharedIPWhiteList.Contains("set:"+types.String(set.Id), this.Scope, request.WAFServerId(), request.WAFRemoteIP()) {
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return true
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}
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refURL := request.WAFRaw().URL.String()
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// 覆盖配置
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if strings.HasPrefix(refURL, CaptchaPath) {
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info := request.WAFRaw().URL.Query().Get("info")
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if len(info) > 0 {
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m, err := utils.SimpleDecryptMap(info)
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if err == nil && m != nil {
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refURL = m.GetString("url")
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}
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}
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}
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var captchaConfig = maps.Map{
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"action": this,
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"timestamp": time.Now().Unix(),
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"url": refURL,
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"policyId": waf.Id,
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"groupId": group.Id,
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"setId": set.Id,
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}
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info, err := utils.SimpleEncryptMap(captchaConfig)
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if err != nil {
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remotelogs.Error("WAF_CAPTCHA_ACTION", "encode captcha config failed: "+err.Error())
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return true
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}
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http.Redirect(writer, request.WAFRaw(), CaptchaPath+"?info="+url.QueryEscape(info), http.StatusTemporaryRedirect)
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return false
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}
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