132 lines
4.3 KiB
Go
132 lines
4.3 KiB
Go
package ldap
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import (
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"context"
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"errors"
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"fmt"
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"net"
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"strings"
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"github.com/nmcclain/ldap"
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"goauthentik.io/outpost/api"
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)
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func (pi *ProviderInstance) SearchMe(user api.User, searchReq ldap.SearchRequest, conn net.Conn) (ldap.ServerSearchResult, error) {
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entries := make([]*ldap.Entry, 1)
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entries[0] = pi.UserEntry(user)
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return ldap.ServerSearchResult{Entries: entries, Referrals: []string{}, Controls: []ldap.Control{}, ResultCode: ldap.LDAPResultSuccess}, nil
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}
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func (pi *ProviderInstance) Search(bindDN string, searchReq ldap.SearchRequest, conn net.Conn) (ldap.ServerSearchResult, error) {
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bindDN = strings.ToLower(bindDN)
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baseDN := strings.ToLower("," + pi.BaseDN)
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entries := []*ldap.Entry{}
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filterEntity, err := ldap.GetFilterObjectClass(searchReq.Filter)
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if err != nil {
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return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultOperationsError}, fmt.Errorf("Search Error: error parsing filter: %s", searchReq.Filter)
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}
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if len(bindDN) < 1 {
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return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultInsufficientAccessRights}, fmt.Errorf("Search Error: Anonymous BindDN not allowed %s", bindDN)
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}
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if !strings.HasSuffix(bindDN, baseDN) {
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return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultInsufficientAccessRights}, fmt.Errorf("Search Error: BindDN %s not in our BaseDN %s", bindDN, pi.BaseDN)
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}
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pi.boundUsersMutex.RLock()
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defer pi.boundUsersMutex.RUnlock()
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flags, ok := pi.boundUsers[bindDN]
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if !ok {
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pi.log.Debug("User info not cached")
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return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultInsufficientAccessRights}, errors.New("access denied")
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}
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if !flags.CanSearch {
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pi.log.Debug("User can't search, showing info about user")
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return pi.SearchMe(flags.UserInfo, searchReq, conn)
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}
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switch filterEntity {
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default:
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return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultOperationsError}, fmt.Errorf("Search Error: unhandled filter type: %s [%s]", filterEntity, searchReq.Filter)
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case GroupObjectClass:
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groups, _, err := pi.s.ac.Client.CoreApi.CoreGroupsList(context.Background()).Execute()
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if err != nil {
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return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultOperationsError}, fmt.Errorf("API Error: %s", err)
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}
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pi.log.WithField("count", len(groups.Results)).Trace("Got results from API")
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for _, g := range groups.Results {
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entries = append(entries, pi.GroupEntry(g))
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}
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case UserObjectClass, "":
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users, _, err := pi.s.ac.Client.CoreApi.CoreUsersList(context.Background()).Execute()
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if err != nil {
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return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultOperationsError}, fmt.Errorf("API Error: %s", err)
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}
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for _, u := range users.Results {
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entries = append(entries, pi.UserEntry(u))
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}
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}
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pi.log.WithField("filter", searchReq.Filter).Debug("Search OK")
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return ldap.ServerSearchResult{Entries: entries, Referrals: []string{}, Controls: []ldap.Control{}, ResultCode: ldap.LDAPResultSuccess}, nil
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}
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func (pi *ProviderInstance) UserEntry(u api.User) *ldap.Entry {
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attrs := []*ldap.EntryAttribute{
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{
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Name: "cn",
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Values: []string{u.Username},
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},
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{
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Name: "uid",
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Values: []string{u.Uid},
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},
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{
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Name: "name",
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Values: []string{u.Name},
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},
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{
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Name: "displayName",
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Values: []string{u.Name},
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},
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{
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Name: "mail",
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Values: []string{*u.Email},
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},
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{
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Name: "objectClass",
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Values: []string{UserObjectClass, "organizationalPerson", "goauthentik.io/ldap/user"},
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},
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}
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attrs = append(attrs, &ldap.EntryAttribute{Name: "memberOf", Values: pi.GroupsForUser(u)})
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attrs = append(attrs, &ldap.EntryAttribute{Name: "goauthentik.io/ldap/active", Values: []string{BoolToString(*u.IsActive)}})
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attrs = append(attrs, &ldap.EntryAttribute{Name: "goauthentik.io/ldap/superuser", Values: []string{BoolToString(u.IsSuperuser)}})
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attrs = append(attrs, AKAttrsToLDAP(u.Attributes)...)
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dn := fmt.Sprintf("cn=%s,%s", u.Username, pi.UserDN)
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return &ldap.Entry{DN: dn, Attributes: attrs}
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}
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func (pi *ProviderInstance) GroupEntry(g api.Group) *ldap.Entry {
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attrs := []*ldap.EntryAttribute{
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{
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Name: "cn",
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Values: []string{g.Name},
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},
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{
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Name: "uid",
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Values: []string{string(g.Pk)},
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},
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{
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Name: "objectClass",
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Values: []string{GroupObjectClass, "goauthentik.io/ldap/group"},
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},
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}
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attrs = append(attrs, AKAttrsToLDAP(g.Attributes)...)
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dn := pi.GetGroupDN(g)
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return &ldap.Entry{DN: dn, Attributes: attrs}
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}
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