66 lines
1.5 KiB
Go
66 lines
1.5 KiB
Go
package common
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import (
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"crypto/subtle"
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"database/sql"
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"errors"
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"github.com/Azareal/Gosora/query_gen"
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)
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var PasswordResetter *DefaultPasswordResetter
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var ErrBadResetToken = errors.New("This reset token has expired.")
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type DefaultPasswordResetter struct {
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getTokens *sql.Stmt
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create *sql.Stmt
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delete *sql.Stmt
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}
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func NewDefaultPasswordResetter(acc *qgen.Accumulator) (*DefaultPasswordResetter, error) {
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return &DefaultPasswordResetter{
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getTokens: acc.Select("password_resets").Columns("token").Where("uid = ?").Prepare(),
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create: acc.Insert("password_resets").Columns("email, uid, validated, token, createdAt").Fields("?,?,0,?,UTC_TIMESTAMP()").Prepare(),
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delete: acc.Delete("password_resets").Where("uid =?").Prepare(),
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}, acc.FirstError()
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}
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func (r *DefaultPasswordResetter) Create(email string, uid int, token string) error {
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_, err := r.create.Exec(email, uid, token)
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return err
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}
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func (r *DefaultPasswordResetter) FlushTokens(uid int) error {
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_, err := r.delete.Exec(uid)
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return err
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}
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func (r *DefaultPasswordResetter) ValidateToken(uid int, token string) error {
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rows, err := r.getTokens.Query(uid)
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if err != nil {
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return err
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}
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defer rows.Close()
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success := false
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for rows.Next() {
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var rtoken string
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err := rows.Scan(&rtoken)
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if err != nil {
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return err
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}
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if subtle.ConstantTimeCompare([]byte(token), []byte(rtoken)) == 1 {
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success = true
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}
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}
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err = rows.Err()
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if err != nil {
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return err
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}
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if !success {
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return ErrBadResetToken
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}
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return nil
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}
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