open-vault/sdk/database/helper/credsutil/sql.go
Clint cd6b0b2de5 Combined Database backend: Add GenerateCredentials to the CredentialsProducer Interface (#7010)
* Add GenerateCredentials to the CredentialsProducer Interface, add default implementation

* Remove GenerateCredentials implementation from database plugins
2019-07-05 14:34:47 -04:00

82 lines
2 KiB
Go

package credsutil
import (
"context"
"fmt"
"time"
"github.com/hashicorp/vault/sdk/database/dbplugin"
)
const (
NoneLength int = -1
)
// SQLCredentialsProducer implements CredentialsProducer and provides a generic credentials producer for most sql database types.
type SQLCredentialsProducer struct {
DisplayNameLen int
RoleNameLen int
UsernameLen int
Separator string
}
func (scp *SQLCredentialsProducer) GenerateCredentials(ctx context.Context) (string, error) {
password, err := scp.GeneratePassword()
if err != nil {
return "", err
}
return password, nil
}
func (scp *SQLCredentialsProducer) GenerateUsername(config dbplugin.UsernameConfig) (string, error) {
username := "v"
displayName := config.DisplayName
if scp.DisplayNameLen > 0 && len(displayName) > scp.DisplayNameLen {
displayName = displayName[:scp.DisplayNameLen]
} else if scp.DisplayNameLen == NoneLength {
displayName = ""
}
if len(displayName) > 0 {
username = fmt.Sprintf("%s%s%s", username, scp.Separator, displayName)
}
roleName := config.RoleName
if scp.RoleNameLen > 0 && len(roleName) > scp.RoleNameLen {
roleName = roleName[:scp.RoleNameLen]
} else if scp.RoleNameLen == NoneLength {
roleName = ""
}
if len(roleName) > 0 {
username = fmt.Sprintf("%s%s%s", username, scp.Separator, roleName)
}
userUUID, err := RandomAlphaNumeric(20, false)
if err != nil {
return "", err
}
username = fmt.Sprintf("%s%s%s", username, scp.Separator, userUUID)
username = fmt.Sprintf("%s%s%s", username, scp.Separator, fmt.Sprint(time.Now().Unix()))
if scp.UsernameLen > 0 && len(username) > scp.UsernameLen {
username = username[:scp.UsernameLen]
}
return username, nil
}
func (scp *SQLCredentialsProducer) GeneratePassword() (string, error) {
password, err := RandomAlphaNumeric(20, true)
if err != nil {
return "", err
}
return password, nil
}
func (scp *SQLCredentialsProducer) GenerateExpiration(ttl time.Time) (string, error) {
return ttl.Format("2006-01-02 15:04:05-0700"), nil
}