outposts/ldap: return user info when user can't search

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>
This commit is contained in:
Jens Langhammer 2021-05-24 16:09:05 +02:00
parent 763c3fcfe0
commit 2a5926608f
3 changed files with 85 additions and 71 deletions

View File

@ -53,8 +53,6 @@ func (pi *ProviderInstance) Bind(username string, bindDN, bindPW string, conn ne
// Create new http client that also sets the correct ip
config := api.NewConfiguration()
// Carry over the bearer authentication, so that failed login attempts are attributed to the outpost
config.DefaultHeader = pi.s.ac.Client.GetConfig().DefaultHeader
config.Host = pi.s.ac.Client.GetConfig().Host
config.Scheme = pi.s.ac.Client.GetConfig().Scheme
config.HTTPClient = &http.Client{
@ -76,7 +74,7 @@ func (pi *ProviderInstance) Bind(username string, bindDN, bindPW string, conn ne
if !passed {
return ldap.LDAPResultInvalidCredentials, nil
}
r, err := pi.s.ac.Client.CoreApi.CoreApplicationsCheckAccessRetrieve(context.Background(), pi.appSlug).Execute()
r, err := apiClient.CoreApi.CoreApplicationsCheckAccessRetrieve(context.Background(), pi.appSlug).Execute()
if r.StatusCode == 403 {
pi.log.WithField("bindDN", bindDN).Info("Access denied for user")
return ldap.LDAPResultInsufficientAccessRights, nil
@ -87,7 +85,7 @@ func (pi *ProviderInstance) Bind(username string, bindDN, bindPW string, conn ne
}
pi.log.WithField("bindDN", bindDN).Info("User has access")
// Get user info to store in context
userInfo, _, err := pi.s.ac.Client.CoreApi.CoreUsersMeRetrieve(context.Background()).Execute()
userInfo, _, err := apiClient.CoreApi.CoreUsersMeRetrieve(context.Background()).Execute()
if err != nil {
pi.log.WithField("bindDN", bindDN).WithError(err).Warning("failed to get user info")
return ldap.LDAPResultOperationsError, nil

View File

@ -8,8 +8,15 @@ import (
"strings"
"github.com/nmcclain/ldap"
"goauthentik.io/outpost/api"
)
func (pi *ProviderInstance) SearchMe(user api.User, searchReq ldap.SearchRequest, conn net.Conn) (ldap.ServerSearchResult, error) {
entries := make([]*ldap.Entry, 1)
entries[0] = pi.UserEntry(user)
return ldap.ServerSearchResult{Entries: entries, Referrals: []string{}, Controls: []ldap.Control{}, ResultCode: ldap.LDAPResultSuccess}, nil
}
func (pi *ProviderInstance) Search(bindDN string, searchReq ldap.SearchRequest, conn net.Conn) (ldap.ServerSearchResult, error) {
bindDN = strings.ToLower(bindDN)
baseDN := strings.ToLower("," + pi.BaseDN)
@ -29,14 +36,13 @@ func (pi *ProviderInstance) Search(bindDN string, searchReq ldap.SearchRequest,
pi.boundUsersMutex.RLock()
defer pi.boundUsersMutex.RUnlock()
flags, ok := pi.boundUsers[bindDN]
pi.log.WithField("bindDN", bindDN).WithField("ok", ok).Debugf("%+v\n", flags)
if !ok {
pi.log.Debug("User info not cached")
return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultInsufficientAccessRights}, errors.New("access denied")
}
if !flags.CanSearch {
pi.log.Debug("User can't search")
return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultInsufficientAccessRights}, errors.New("access denied")
pi.log.Debug("User can't search, showing info about user")
return pi.SearchMe(flags.UserInfo, searchReq, conn)
}
switch filterEntity {
@ -49,24 +55,7 @@ func (pi *ProviderInstance) Search(bindDN string, searchReq ldap.SearchRequest,
}
pi.log.WithField("count", len(groups.Results)).Trace("Got results from API")
for _, g := range groups.Results {
attrs := []*ldap.EntryAttribute{
{
Name: "cn",
Values: []string{g.Name},
},
{
Name: "uid",
Values: []string{string(g.Pk)},
},
{
Name: "objectClass",
Values: []string{GroupObjectClass, "goauthentik.io/ldap/group"},
},
}
attrs = append(attrs, AKAttrsToLDAP(g.Attributes)...)
dn := pi.GetGroupDN(g)
entries = append(entries, &ldap.Entry{DN: dn, Attributes: attrs})
entries = append(entries, pi.GroupEntry(g))
}
case UserObjectClass, "":
users, _, err := pi.s.ac.Client.CoreApi.CoreUsersList(context.Background()).Execute()
@ -74,6 +63,14 @@ func (pi *ProviderInstance) Search(bindDN string, searchReq ldap.SearchRequest,
return ldap.ServerSearchResult{ResultCode: ldap.LDAPResultOperationsError}, fmt.Errorf("API Error: %s", err)
}
for _, u := range users.Results {
entries = append(entries, pi.UserEntry(u))
}
}
pi.log.WithField("filter", searchReq.Filter).Debug("Search OK")
return ldap.ServerSearchResult{Entries: entries, Referrals: []string{}, Controls: []ldap.Control{}, ResultCode: ldap.LDAPResultSuccess}, nil
}
func (pi *ProviderInstance) UserEntry(u api.User) *ldap.Entry {
attrs := []*ldap.EntryAttribute{
{
Name: "cn",
@ -118,9 +115,27 @@ func (pi *ProviderInstance) Search(bindDN string, searchReq ldap.SearchRequest,
attrs = append(attrs, AKAttrsToLDAP(u.Attributes)...)
dn := fmt.Sprintf("cn=%s,%s", u.Username, pi.UserDN)
entries = append(entries, &ldap.Entry{DN: dn, Attributes: attrs})
return &ldap.Entry{DN: dn, Attributes: attrs}
}
func (pi *ProviderInstance) GroupEntry(g api.Group) *ldap.Entry {
attrs := []*ldap.EntryAttribute{
{
Name: "cn",
Values: []string{g.Name},
},
{
Name: "uid",
Values: []string{string(g.Pk)},
},
{
Name: "objectClass",
Values: []string{GroupObjectClass, "goauthentik.io/ldap/group"},
},
}
pi.log.WithField("filter", searchReq.Filter).Debug("Search OK")
return ldap.ServerSearchResult{Entries: entries, Referrals: []string{}, Controls: []ldap.Control{}, ResultCode: ldap.LDAPResultSuccess}, nil
attrs = append(attrs, AKAttrsToLDAP(g.Attributes)...)
dn := pi.GetGroupDN(g)
return &ldap.Entry{DN: dn, Attributes: attrs}
}

View File

@ -9,7 +9,8 @@ import (
func AKAttrsToLDAP(attrs interface{}) []*ldap.EntryAttribute {
attrList := []*ldap.EntryAttribute{}
for attrKey, attrValue := range attrs.(map[string]interface{}) {
a := attrs.(*map[string]interface{})
for attrKey, attrValue := range *a {
entry := &ldap.EntryAttribute{Name: attrKey}
switch t := attrValue.(type) {
case []string: