139 lines
3.2 KiB
Go
139 lines
3.2 KiB
Go
package ldap
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import (
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"fmt"
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"math/big"
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"reflect"
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"strconv"
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"strings"
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"github.com/nmcclain/ldap"
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log "github.com/sirupsen/logrus"
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"goauthentik.io/api"
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)
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func BoolToString(in bool) string {
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if in {
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return "true"
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}
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return "false"
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}
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func ldapResolveTypeSingle(in interface{}) *string {
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switch t := in.(type) {
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case string:
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return &t
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case *string:
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return t
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case bool:
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s := BoolToString(t)
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return &s
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case *bool:
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s := BoolToString(*t)
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return &s
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default:
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log.WithField("type", reflect.TypeOf(in).String()).Warning("Type can't be mapped to LDAP yet")
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return nil
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}
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}
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func AKAttrsToLDAP(attrs interface{}) []*ldap.EntryAttribute {
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attrList := []*ldap.EntryAttribute{}
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a := attrs.(*map[string]interface{})
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for attrKey, attrValue := range *a {
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entry := &ldap.EntryAttribute{Name: attrKey}
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switch t := attrValue.(type) {
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case []string:
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entry.Values = t
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case *[]string:
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entry.Values = *t
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case []interface{}:
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entry.Values = make([]string, len(t))
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for idx, v := range t {
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v := ldapResolveTypeSingle(v)
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entry.Values[idx] = *v
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}
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default:
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v := ldapResolveTypeSingle(t)
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if v != nil {
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entry.Values = []string{*v}
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}
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}
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attrList = append(attrList, entry)
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}
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return attrList
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}
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func (pi *ProviderInstance) GroupsForUser(user api.User) []string {
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groups := make([]string, len(user.Groups))
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for i, group := range user.GroupsObj {
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groups[i] = pi.GetGroupDN(group.Name)
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}
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return groups
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}
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func (pi *ProviderInstance) UsersForGroup(group api.Group) []string {
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users := make([]string, len(group.UsersObj))
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for i, user := range group.UsersObj {
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users[i] = pi.GetUserDN(user.Username)
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}
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return users
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}
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func (pi *ProviderInstance) APIGroupToLDAPGroup(g api.Group) LDAPGroup {
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return LDAPGroup{
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dn: pi.GetGroupDN(g.Name),
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cn: g.Name,
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uid: string(g.Pk),
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gidNumber: pi.GetGidNumber(g),
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member: pi.UsersForGroup(g),
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isVirtualGroup: false,
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isSuperuser: *g.IsSuperuser,
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akAttributes: g.Attributes,
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}
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}
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func (pi *ProviderInstance) APIUserToLDAPGroup(u api.User) LDAPGroup {
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return LDAPGroup{
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dn: pi.GetGroupDN(u.Username),
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cn: u.Username,
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uid: u.Uid,
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gidNumber: pi.GetUidNumber(u),
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member: []string{pi.GetUserDN(u.Username)},
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isVirtualGroup: true,
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isSuperuser: false,
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akAttributes: nil,
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}
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}
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func (pi *ProviderInstance) GetUserDN(user string) string {
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return fmt.Sprintf("cn=%s,%s", user, pi.UserDN)
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}
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func (pi *ProviderInstance) GetGroupDN(group string) string {
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return fmt.Sprintf("cn=%s,%s", group, pi.GroupDN)
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}
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func (pi *ProviderInstance) GetUidNumber(user api.User) string {
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return strconv.FormatInt(int64(pi.uidStartNumber+user.Pk), 10)
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}
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func (pi *ProviderInstance) GetGidNumber(group api.Group) string {
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return strconv.FormatInt(int64(pi.gidStartNumber+pi.GetRIDForGroup(group.Pk)), 10)
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}
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func (pi *ProviderInstance) GetRIDForGroup(uid string) int32 {
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var i big.Int
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i.SetString(strings.Replace(uid, "-", "", -1), 16)
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intStr := i.String()
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// Get the last 5 characters/digits of the int-version of the UUID
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gid, err := strconv.Atoi(intStr[len(intStr)-5:])
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if err != nil {
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panic(err)
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}
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return int32(gid)
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}
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