mirror of
https://github.com/go-gitea/gitea
synced 2024-12-23 07:34:25 +01:00
Fix group filter for ldap source sync (#22506)
There are 2 separate flows of creating a user: authentication and source sync. When a group filter is defined, source sync ignores group filter, while authentication respects it. With this PR I've fixed this behavior, so both flows now apply this filter when searching users in LDAP in a unified way. - Unified LDAP group membership lookup for authentication and source sync flows - Replaced custom group membership lookup (used for authentication flow) with an existing listLdapGroupMemberships method (used for source sync flow) - Modified listLdapGroupMemberships and getUserAttributeListedInGroup in a way group lookup could be called separately - Added user filtering based on a group membership for a source sync - Added tests to cover this logic Co-authored-by: Pavel Ezhov <paejov@gmail.com> Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
This commit is contained in:
parent
9ef8bfb69b
commit
98770d3db8
2 changed files with 160 additions and 78 deletions
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@ -196,22 +196,39 @@ func checkRestricted(l *ldap.Conn, ls *Source, userDN string) bool {
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}
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// List all group memberships of a user
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func (source *Source) listLdapGroupMemberships(l *ldap.Conn, uid string) []string {
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func (source *Source) listLdapGroupMemberships(l *ldap.Conn, uid string, applyGroupFilter bool) []string {
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var ldapGroups []string
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groupFilter := fmt.Sprintf("(%s=%s)", source.GroupMemberUID, ldap.EscapeFilter(uid))
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var searchFilter string
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groupFilter, ok := source.sanitizedGroupFilter(source.GroupFilter)
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if !ok {
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return ldapGroups
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}
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groupDN, ok := source.sanitizedGroupDN(source.GroupDN)
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if !ok {
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return ldapGroups
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}
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if applyGroupFilter {
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searchFilter = fmt.Sprintf("(&(%s)(%s=%s))", groupFilter, source.GroupMemberUID, ldap.EscapeFilter(uid))
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} else {
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searchFilter = fmt.Sprintf("(%s=%s)", source.GroupMemberUID, ldap.EscapeFilter(uid))
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}
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result, err := l.Search(ldap.NewSearchRequest(
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source.GroupDN,
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groupDN,
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ldap.ScopeWholeSubtree,
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ldap.NeverDerefAliases,
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0,
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0,
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false,
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groupFilter,
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searchFilter,
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[]string{},
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nil,
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))
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if err != nil {
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log.Error("Failed group search using filter[%s]: %v", groupFilter, err)
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log.Error("Failed group search in LDAP with filter [%s]: %v", searchFilter, err)
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return ldapGroups
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}
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@ -238,9 +255,7 @@ func (source *Source) mapLdapGroupsToTeams() map[string]map[string][]string {
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}
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// getMappedMemberships : returns the organizations and teams to modify the users membership
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func (source *Source) getMappedMemberships(l *ldap.Conn, uid string) (map[string][]string, map[string][]string) {
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// get all LDAP group memberships for user
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usersLdapGroups := source.listLdapGroupMemberships(l, uid)
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func (source *Source) getMappedMemberships(usersLdapGroups []string, uid string) (map[string][]string, map[string][]string) {
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// unmarshall LDAP group team map from configs
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ldapGroupsToTeams := source.mapLdapGroupsToTeams()
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membershipsToAdd := map[string][]string{}
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@ -260,6 +275,14 @@ func (source *Source) getMappedMemberships(l *ldap.Conn, uid string) (map[string
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return membershipsToAdd, membershipsToRemove
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}
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func (source *Source) getUserAttributeListedInGroup(entry *ldap.Entry) string {
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if strings.ToLower(source.UserUID) == "dn" {
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return entry.DN
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}
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return entry.GetAttributeValue(source.UserUID)
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}
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// SearchEntry : search an LDAP source if an entry (name, passwd) is valid and in the specific filter
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func (source *Source) SearchEntry(name, passwd string, directBind bool) *SearchResult {
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// See https://tools.ietf.org/search/rfc4513#section-5.1.2
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@ -375,58 +398,30 @@ func (source *Source) SearchEntry(name, passwd string, directBind bool) *SearchR
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firstname := sr.Entries[0].GetAttributeValue(source.AttributeName)
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surname := sr.Entries[0].GetAttributeValue(source.AttributeSurname)
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mail := sr.Entries[0].GetAttributeValue(source.AttributeMail)
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uid := sr.Entries[0].GetAttributeValue(source.UserUID)
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if source.UserUID == "dn" || source.UserUID == "DN" {
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uid = sr.Entries[0].DN
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}
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teamsToAdd := make(map[string][]string)
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teamsToRemove := make(map[string][]string)
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// Check group membership
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if source.GroupsEnabled && source.GroupFilter != "" {
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groupFilter, ok := source.sanitizedGroupFilter(source.GroupFilter)
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if !ok {
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return nil
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}
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groupDN, ok := source.sanitizedGroupDN(source.GroupDN)
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if !ok {
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if source.GroupsEnabled {
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userAttributeListedInGroup := source.getUserAttributeListedInGroup(sr.Entries[0])
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usersLdapGroups := source.listLdapGroupMemberships(l, userAttributeListedInGroup, true)
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if source.GroupFilter != "" && len(usersLdapGroups) == 0 {
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return nil
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}
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log.Trace("Fetching groups '%v' with filter '%s' and base '%s'", source.GroupMemberUID, groupFilter, groupDN)
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groupSearch := ldap.NewSearchRequest(
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groupDN, ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false, groupFilter,
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[]string{source.GroupMemberUID},
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nil)
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srg, err := l.Search(groupSearch)
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if err != nil {
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log.Error("LDAP group search failed: %v", err)
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return nil
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} else if len(srg.Entries) < 1 {
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log.Error("LDAP group search failed: 0 entries")
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return nil
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}
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isMember := false
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Entries:
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for _, group := range srg.Entries {
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for _, member := range group.GetAttributeValues(source.GroupMemberUID) {
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if (source.UserUID == "dn" && member == sr.Entries[0].DN) || member == uid {
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isMember = true
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break Entries
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}
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}
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}
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if !isMember {
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log.Error("LDAP group membership test failed")
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return nil
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if source.GroupTeamMap != "" || source.GroupTeamMapRemoval {
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teamsToAdd, teamsToRemove = source.getMappedMemberships(usersLdapGroups, userAttributeListedInGroup)
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}
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}
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if isAttributeSSHPublicKeySet {
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sshPublicKey = sr.Entries[0].GetAttributeValues(source.AttributeSSHPublicKey)
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}
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isAdmin := checkAdmin(l, source, userDN)
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var isRestricted bool
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if !isAdmin {
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isRestricted = checkRestricted(l, source, userDN)
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@ -436,12 +431,6 @@ func (source *Source) SearchEntry(name, passwd string, directBind bool) *SearchR
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Avatar = sr.Entries[0].GetRawAttributeValue(source.AttributeAvatar)
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}
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teamsToAdd := make(map[string][]string)
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teamsToRemove := make(map[string][]string)
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if source.GroupsEnabled && (source.GroupTeamMap != "" || source.GroupTeamMapRemoval) {
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teamsToAdd, teamsToRemove = source.getMappedMemberships(l, uid)
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}
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if !directBind && source.AttributesInBind {
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// binds user (checking password) after looking-up attributes in BindDN context
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err = bindUser(l, userDN, passwd)
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@ -520,19 +509,29 @@ func (source *Source) SearchEntries() ([]*SearchResult, error) {
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return nil, err
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}
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result := make([]*SearchResult, len(sr.Entries))
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result := make([]*SearchResult, 0, len(sr.Entries))
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for i, v := range sr.Entries {
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for _, v := range sr.Entries {
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teamsToAdd := make(map[string][]string)
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teamsToRemove := make(map[string][]string)
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if source.GroupsEnabled && (source.GroupTeamMap != "" || source.GroupTeamMapRemoval) {
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userAttributeListedInGroup := v.GetAttributeValue(source.UserUID)
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if source.UserUID == "dn" || source.UserUID == "DN" {
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userAttributeListedInGroup = v.DN
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if source.GroupsEnabled {
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userAttributeListedInGroup := source.getUserAttributeListedInGroup(v)
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if source.GroupFilter != "" {
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usersLdapGroups := source.listLdapGroupMemberships(l, userAttributeListedInGroup, true)
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if len(usersLdapGroups) == 0 {
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continue
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}
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teamsToAdd, teamsToRemove = source.getMappedMemberships(l, userAttributeListedInGroup)
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}
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result[i] = &SearchResult{
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if source.GroupTeamMap != "" || source.GroupTeamMapRemoval {
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usersLdapGroups := source.listLdapGroupMemberships(l, userAttributeListedInGroup, false)
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teamsToAdd, teamsToRemove = source.getMappedMemberships(usersLdapGroups, userAttributeListedInGroup)
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}
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}
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user := &SearchResult{
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Username: v.GetAttributeValue(source.AttributeUsername),
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Name: v.GetAttributeValue(source.AttributeName),
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Surname: v.GetAttributeValue(source.AttributeSurname),
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@ -541,16 +540,22 @@ func (source *Source) SearchEntries() ([]*SearchResult, error) {
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LdapTeamAdd: teamsToAdd,
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LdapTeamRemove: teamsToRemove,
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}
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if !result[i].IsAdmin {
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result[i].IsRestricted = checkRestricted(l, source, v.DN)
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if !user.IsAdmin {
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user.IsRestricted = checkRestricted(l, source, v.DN)
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}
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if isAttributeSSHPublicKeySet {
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result[i].SSHPublicKey = v.GetAttributeValues(source.AttributeSSHPublicKey)
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user.SSHPublicKey = v.GetAttributeValues(source.AttributeSSHPublicKey)
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}
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if isAtributeAvatarSet {
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result[i].Avatar = v.GetRawAttributeValue(source.AttributeAvatar)
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user.Avatar = v.GetRawAttributeValue(source.AttributeAvatar)
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}
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result[i].LowerName = strings.ToLower(result[i].Username)
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user.LowerName = strings.ToLower(user.Username)
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result = append(result, user)
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}
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return result, nil
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@ -11,12 +11,14 @@ import (
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"testing"
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"code.gitea.io/gitea/models"
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auth_model "code.gitea.io/gitea/models/auth"
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/models/organization"
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"code.gitea.io/gitea/models/unittest"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/translation"
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"code.gitea.io/gitea/services/auth"
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"code.gitea.io/gitea/services/auth/source/ldap"
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"code.gitea.io/gitea/tests"
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"github.com/stretchr/testify/assert"
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@ -102,13 +104,28 @@ func getLDAPServerHost() string {
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return host
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}
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func addAuthSourceLDAP(t *testing.T, sshKeyAttribute string, groupMapParams ...string) {
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func getLDAPServerPort() string {
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port := os.Getenv("TEST_LDAP_PORT")
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if len(port) == 0 {
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port = "389"
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}
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return port
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}
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func addAuthSourceLDAP(t *testing.T, sshKeyAttribute, groupFilter string, groupMapParams ...string) {
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groupTeamMapRemoval := "off"
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groupTeamMap := ""
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if len(groupMapParams) == 2 {
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groupTeamMapRemoval = groupMapParams[0]
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groupTeamMap = groupMapParams[1]
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}
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// Modify user filter to test group filter explicitly
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userFilter := "(&(objectClass=inetOrgPerson)(memberOf=cn=git,ou=people,dc=planetexpress,dc=com)(uid=%s))"
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if groupFilter != "" {
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userFilter = "(&(objectClass=inetOrgPerson)(uid=%s))"
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}
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session := loginUser(t, "user1")
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csrf := GetCSRF(t, session, "/admin/auths/new")
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req := NewRequestWithValues(t, "POST", "/admin/auths/new", map[string]string{
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@ -116,11 +133,11 @@ func addAuthSourceLDAP(t *testing.T, sshKeyAttribute string, groupMapParams ...s
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"type": "2",
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"name": "ldap",
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"host": getLDAPServerHost(),
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"port": "389",
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"port": getLDAPServerPort(),
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"bind_dn": "uid=gitea,ou=service,dc=planetexpress,dc=com",
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"bind_password": "password",
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"user_base": "ou=people,dc=planetexpress,dc=com",
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"filter": "(&(objectClass=inetOrgPerson)(memberOf=cn=git,ou=people,dc=planetexpress,dc=com)(uid=%s))",
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"filter": userFilter,
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"admin_filter": "(memberOf=cn=admin_staff,ou=people,dc=planetexpress,dc=com)",
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"restricted_filter": "(uid=leela)",
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"attribute_username": "uid",
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@ -133,6 +150,7 @@ func addAuthSourceLDAP(t *testing.T, sshKeyAttribute string, groupMapParams ...s
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"groups_enabled": "on",
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"group_dn": "ou=people,dc=planetexpress,dc=com",
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"group_member_uid": "member",
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"group_filter": groupFilter,
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"group_team_map": groupTeamMap,
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"group_team_map_removal": groupTeamMapRemoval,
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"user_uid": "DN",
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@ -146,7 +164,7 @@ func TestLDAPUserSignin(t *testing.T) {
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return
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}
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defer tests.PrepareTestEnv(t)()
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addAuthSourceLDAP(t, "")
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addAuthSourceLDAP(t, "", "")
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u := gitLDAPUsers[0]
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@ -163,7 +181,7 @@ func TestLDAPUserSignin(t *testing.T) {
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func TestLDAPAuthChange(t *testing.T) {
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defer tests.PrepareTestEnv(t)()
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addAuthSourceLDAP(t, "")
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addAuthSourceLDAP(t, "", "")
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session := loginUser(t, "user1")
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req := NewRequest(t, "GET", "/admin/auths")
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@ -221,7 +239,7 @@ func TestLDAPUserSync(t *testing.T) {
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return
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}
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defer tests.PrepareTestEnv(t)()
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addAuthSourceLDAP(t, "")
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addAuthSourceLDAP(t, "", "")
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auth.SyncExternalUsers(context.Background(), true)
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session := loginUser(t, "user1")
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@ -266,13 +284,72 @@ func TestLDAPUserSync(t *testing.T) {
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}
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}
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func TestLDAPUserSyncWithGroupFilter(t *testing.T) {
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if skipLDAPTests() {
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t.Skip()
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return
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}
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defer tests.PrepareTestEnv(t)()
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addAuthSourceLDAP(t, "", "(cn=git)")
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// Assert a user not a member of the LDAP group "cn=git" cannot login
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// This test may look like TestLDAPUserSigninFailed but it is not.
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// The later test uses user filter containing group membership filter (memberOf)
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// This test is for the case when LDAP user records may not be linked with
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// all groups the user is a member of, the user filter is modified accordingly inside
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// the addAuthSourceLDAP based on the value of the groupFilter
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u := otherLDAPUsers[0]
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testLoginFailed(t, u.UserName, u.Password, translation.NewLocale("en-US").Tr("form.username_password_incorrect"))
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auth.SyncExternalUsers(context.Background(), true)
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// Assert members of LDAP group "cn=git" are added
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for _, gitLDAPUser := range gitLDAPUsers {
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unittest.BeanExists(t, &user_model.User{
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Name: gitLDAPUser.UserName,
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})
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}
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// Assert everyone else is not added
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for _, gitLDAPUser := range otherLDAPUsers {
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unittest.AssertNotExistsBean(t, &user_model.User{
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Name: gitLDAPUser.UserName,
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})
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}
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ldapSource := unittest.AssertExistsAndLoadBean(t, &auth_model.Source{
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Name: "ldap",
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})
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ldapConfig := ldapSource.Cfg.(*ldap.Source)
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ldapConfig.GroupFilter = "(cn=ship_crew)"
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auth_model.UpdateSource(ldapSource)
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auth.SyncExternalUsers(context.Background(), true)
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for _, gitLDAPUser := range gitLDAPUsers {
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if gitLDAPUser.UserName == "fry" || gitLDAPUser.UserName == "leela" || gitLDAPUser.UserName == "bender" {
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// Assert members of the LDAP group "cn-ship_crew" are still active
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user := unittest.AssertExistsAndLoadBean(t, &user_model.User{
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Name: gitLDAPUser.UserName,
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})
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assert.True(t, user.IsActive, "User %s should be active", gitLDAPUser.UserName)
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} else {
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// Assert everyone else is inactive
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user := unittest.AssertExistsAndLoadBean(t, &user_model.User{
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Name: gitLDAPUser.UserName,
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})
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assert.False(t, user.IsActive, "User %s should be inactive", gitLDAPUser.UserName)
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}
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}
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}
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func TestLDAPUserSigninFailed(t *testing.T) {
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if skipLDAPTests() {
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t.Skip()
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return
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}
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defer tests.PrepareTestEnv(t)()
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addAuthSourceLDAP(t, "")
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addAuthSourceLDAP(t, "", "")
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u := otherLDAPUsers[0]
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testLoginFailed(t, u.UserName, u.Password, translation.NewLocale("en-US").Tr("form.username_password_incorrect"))
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@ -284,7 +361,7 @@ func TestLDAPUserSSHKeySync(t *testing.T) {
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return
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}
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defer tests.PrepareTestEnv(t)()
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addAuthSourceLDAP(t, "sshPublicKey")
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addAuthSourceLDAP(t, "sshPublicKey", "")
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auth.SyncExternalUsers(context.Background(), true)
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@ -317,7 +394,7 @@ func TestLDAPGroupTeamSyncAddMember(t *testing.T) {
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return
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}
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defer tests.PrepareTestEnv(t)()
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addAuthSourceLDAP(t, "", "on", `{"cn=ship_crew,ou=people,dc=planetexpress,dc=com":{"org26": ["team11"]},"cn=admin_staff,ou=people,dc=planetexpress,dc=com": {"non-existent": ["non-existent"]}}`)
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addAuthSourceLDAP(t, "", "", "on", `{"cn=ship_crew,ou=people,dc=planetexpress,dc=com":{"org26": ["team11"]},"cn=admin_staff,ou=people,dc=planetexpress,dc=com": {"non-existent": ["non-existent"]}}`)
|
||||
org, err := organization.GetOrgByName("org26")
|
||||
assert.NoError(t, err)
|
||||
team, err := organization.GetTeam(db.DefaultContext, org.ID, "team11")
|
||||
|
@ -362,7 +439,7 @@ func TestLDAPGroupTeamSyncRemoveMember(t *testing.T) {
|
|||
return
|
||||
}
|
||||
defer tests.PrepareTestEnv(t)()
|
||||
addAuthSourceLDAP(t, "", "on", `{"cn=dispatch,ou=people,dc=planetexpress,dc=com": {"org26": ["team11"]}}`)
|
||||
addAuthSourceLDAP(t, "", "", "on", `{"cn=dispatch,ou=people,dc=planetexpress,dc=com": {"org26": ["team11"]}}`)
|
||||
org, err := organization.GetOrgByName("org26")
|
||||
assert.NoError(t, err)
|
||||
team, err := organization.GetTeam(db.DefaultContext, org.ID, "team11")
|
||||
|
@ -398,7 +475,7 @@ func TestBrokenLDAPMapUserSignin(t *testing.T) {
|
|||
return
|
||||
}
|
||||
defer tests.PrepareTestEnv(t)()
|
||||
addAuthSourceLDAP(t, "", "on", `{"NOT_A_VALID_JSON"["MISSING_DOUBLE_POINT"]}`)
|
||||
addAuthSourceLDAP(t, "", "", "on", `{"NOT_A_VALID_JSON"["MISSING_DOUBLE_POINT"]}`)
|
||||
|
||||
u := gitLDAPUsers[0]
|
||||
|
||||
|
|
Loading…
Reference in a new issue