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88 lines
2.2 KiB
Go
88 lines
2.2 KiB
Go
package security
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import (
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"fmt"
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"time"
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"code.smartsheep.studio/hydrogen/passport/pkg/database"
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"code.smartsheep.studio/hydrogen/passport/pkg/models"
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"github.com/samber/lo"
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"gorm.io/datatypes"
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)
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func CalcRisk(user models.Account, ip, ua string) int {
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risk := 3
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var secureFactor int64
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if err := database.C.Where(models.AuthChallenge{
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AccountID: user.ID,
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IpAddress: ip,
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}).Model(models.AuthChallenge{}).Count(&secureFactor).Error; err == nil {
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if secureFactor >= 3 {
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risk -= 3
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} else if secureFactor >= 1 {
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risk -= 2
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}
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}
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return risk
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}
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func NewChallenge(user models.Account, factors []models.AuthFactor, ip, ua string) (models.AuthChallenge, error) {
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var challenge models.AuthChallenge
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// Pickup any challenge if possible
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if err := database.C.Where(models.AuthChallenge{
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AccountID: user.ID,
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}).Where("state = ?", models.ActiveChallengeState).First(&challenge).Error; err == nil {
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return challenge, nil
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}
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// Calculate the risk level
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risk := CalcRisk(user, ip, ua)
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// Clamp risk in the exists requirements factor count
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requirements := lo.Clamp(risk, 1, len(factors))
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challenge = models.AuthChallenge{
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IpAddress: ip,
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UserAgent: ua,
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RiskLevel: risk,
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Requirements: requirements,
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BlacklistFactors: datatypes.NewJSONType([]uint{}),
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State: models.ActiveChallengeState,
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ExpiredAt: time.Now().Add(2 * time.Hour),
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AccountID: user.ID,
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}
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err := database.C.Save(&challenge).Error
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return challenge, err
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}
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func DoChallenge(challenge models.AuthChallenge, factor models.AuthFactor, code string) error {
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if err := challenge.IsAvailable(); err != nil {
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challenge.State = models.ExpiredChallengeState
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database.C.Save(&challenge)
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return err
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}
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if challenge.Progress >= challenge.Requirements {
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return fmt.Errorf("challenge already passed")
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}
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blacklist := challenge.BlacklistFactors.Data()
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if lo.Contains(blacklist, factor.ID) {
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return fmt.Errorf("factor in blacklist, please change another factor to challenge")
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}
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if err := VerifyFactor(factor, code); err != nil {
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return err
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}
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challenge.Progress++
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challenge.BlacklistFactors = datatypes.NewJSONType(append(blacklist, factor.ID))
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if err := database.C.Save(&challenge).Error; err != nil {
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return err
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}
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return nil
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}
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