106 lines
2.3 KiB
Go
106 lines
2.3 KiB
Go
package auth
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import (
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"crypto/rand"
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"encoding/hex"
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"errors"
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"os"
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"strings"
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"time"
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"github.com/golang-jwt/jwt/v5"
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"golang.org/x/crypto/bcrypt"
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"gorm.io/gorm"
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"server/internal/models"
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)
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const staffCtxKey = "staffId"
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type StaffClaims struct {
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StaffID uint `json:"staffId"`
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Email string `json:"email"`
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jwt.RegisteredClaims
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}
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func JWTSecret() string {
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if s := os.Getenv("JWT_SECRET"); s != "" {
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return s
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}
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return "simple-care-staff-jwt-change-me-in-production"
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}
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func HashPassword(password string) (string, error) {
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b, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
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return string(b), err
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}
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func CheckPassword(hash, password string) bool {
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return bcrypt.CompareHashAndPassword([]byte(hash), []byte(password)) == nil
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}
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func RandomPassword(n int) string {
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if n < 8 {
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n = 8
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}
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b := make([]byte, n)
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_, _ = rand.Read(b)
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return hex.EncodeToString(b)[:n]
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}
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func RandomToken(n int) string {
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b := make([]byte, n)
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_, _ = rand.Read(b)
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return hex.EncodeToString(b)
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}
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func IssueToken(staff *models.StaffAccount) (string, error) {
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claims := StaffClaims{
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StaffID: staff.ID,
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Email: staff.Email,
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RegisteredClaims: jwt.RegisteredClaims{
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ExpiresAt: jwt.NewNumericDate(time.Now().Add(7 * 24 * time.Hour)),
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IssuedAt: jwt.NewNumericDate(time.Now()),
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},
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}
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t := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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return t.SignedString([]byte(JWTSecret()))
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}
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func ParseToken(tokenStr string) (*StaffClaims, error) {
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t, err := jwt.ParseWithClaims(tokenStr, &StaffClaims{}, func(t *jwt.Token) (any, error) {
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return []byte(JWTSecret()), nil
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})
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if err != nil {
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return nil, err
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}
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claims, ok := t.Claims.(*StaffClaims)
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if !ok || !t.Valid {
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return nil, errors.New("invalid token")
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}
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return claims, nil
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}
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func EmailDomainPart(email string) string {
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parts := strings.Split(strings.ToLower(strings.TrimSpace(email)), "@")
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if len(parts) != 2 {
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return ""
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}
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return parts[1]
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}
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func IsEmailDomainAllowed(db *gorm.DB, email string) bool {
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domain := EmailDomainPart(email)
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if domain == "" {
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return false
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}
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var count int64
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db.Model(&models.EmailDomain{}).Where("is_active = ?", true).Count(&count)
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if count == 0 {
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return true
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}
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var found int64
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db.Model(&models.EmailDomain{}).Where("domain = ? AND is_active = ?", domain, true).Count(&found)
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return found > 0
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}
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