Add more linters to improve code readability (#19989)

Add nakedret, unconvert, wastedassign, stylecheck and nolintlint linters to improve code readability

- nakedret - https://github.com/alexkohler/nakedret - nakedret is a Go static analysis tool to find naked returns in functions greater than a specified function length.
- unconvert - https://github.com/mdempsky/unconvert - Remove unnecessary type conversions
- wastedassign - https://github.com/sanposhiho/wastedassign -  wastedassign finds wasted assignment statements.
- notlintlint -  Reports ill-formed or insufficient nolint directives
- stylecheck - https://staticcheck.io/docs/checks/#ST - keep style consistent
  - excluded: [ST1003 - Poorly chosen identifier](https://staticcheck.io/docs/checks/#ST1003) and [ST1005 - Incorrectly formatted error string](https://staticcheck.io/docs/checks/#ST1005)
This commit is contained in:
Wim 2022-06-20 12:02:49 +02:00 committed by GitHub
parent 3289abcefc
commit cb50375e2b
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GPG key ID: 4AEE18F83AFDEB23
147 changed files with 402 additions and 397 deletions

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@ -34,7 +34,7 @@ type SearchResult struct {
LdapTeamRemove map[string][]string // organizations teams to remove
}
func (ls *Source) sanitizedUserQuery(username string) (string, bool) {
func (source *Source) sanitizedUserQuery(username string) (string, bool) {
// See http://tools.ietf.org/search/rfc4515
badCharacters := "\x00()*\\"
if strings.ContainsAny(username, badCharacters) {
@ -42,10 +42,10 @@ func (ls *Source) sanitizedUserQuery(username string) (string, bool) {
return "", false
}
return fmt.Sprintf(ls.Filter, username), true
return fmt.Sprintf(source.Filter, username), true
}
func (ls *Source) sanitizedUserDN(username string) (string, bool) {
func (source *Source) sanitizedUserDN(username string) (string, bool) {
// See http://tools.ietf.org/search/rfc4514: "special characters"
badCharacters := "\x00()*\\,='\"#+;<>"
if strings.ContainsAny(username, badCharacters) {
@ -53,10 +53,10 @@ func (ls *Source) sanitizedUserDN(username string) (string, bool) {
return "", false
}
return fmt.Sprintf(ls.UserDN, username), true
return fmt.Sprintf(source.UserDN, username), true
}
func (ls *Source) sanitizedGroupFilter(group string) (string, bool) {
func (source *Source) sanitizedGroupFilter(group string) (string, bool) {
// See http://tools.ietf.org/search/rfc4515
badCharacters := "\x00*\\"
if strings.ContainsAny(group, badCharacters) {
@ -67,7 +67,7 @@ func (ls *Source) sanitizedGroupFilter(group string) (string, bool) {
return group, true
}
func (ls *Source) sanitizedGroupDN(groupDn string) (string, bool) {
func (source *Source) sanitizedGroupDN(groupDn string) (string, bool) {
// See http://tools.ietf.org/search/rfc4514: "special characters"
badCharacters := "\x00()*\\'\"#+;<>"
if strings.ContainsAny(groupDn, badCharacters) || strings.HasPrefix(groupDn, " ") || strings.HasSuffix(groupDn, " ") {
@ -78,18 +78,18 @@ func (ls *Source) sanitizedGroupDN(groupDn string) (string, bool) {
return groupDn, true
}
func (ls *Source) findUserDN(l *ldap.Conn, name string) (string, bool) {
func (source *Source) findUserDN(l *ldap.Conn, name string) (string, bool) {
log.Trace("Search for LDAP user: %s", name)
// A search for the user.
userFilter, ok := ls.sanitizedUserQuery(name)
userFilter, ok := source.sanitizedUserQuery(name)
if !ok {
return "", false
}
log.Trace("Searching for DN using filter %s and base %s", userFilter, ls.UserBase)
log.Trace("Searching for DN using filter %s and base %s", userFilter, source.UserBase)
search := ldap.NewSearchRequest(
ls.UserBase, ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0,
source.UserBase, ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0,
false, userFilter, []string{}, nil)
// Ensure we found a user
@ -197,11 +197,11 @@ func checkRestricted(l *ldap.Conn, ls *Source, userDN string) bool {
}
// List all group memberships of a user
func (ls *Source) listLdapGroupMemberships(l *ldap.Conn, uid string) []string {
func (source *Source) listLdapGroupMemberships(l *ldap.Conn, uid string) []string {
var ldapGroups []string
groupFilter := fmt.Sprintf("(%s=%s)", ls.GroupMemberUID, uid)
groupFilter := fmt.Sprintf("(%s=%s)", source.GroupMemberUID, uid)
result, err := l.Search(ldap.NewSearchRequest(
ls.GroupDN,
source.GroupDN,
ldap.ScopeWholeSubtree,
ldap.NeverDerefAliases,
0,
@ -228,9 +228,9 @@ func (ls *Source) listLdapGroupMemberships(l *ldap.Conn, uid string) []string {
}
// parse LDAP groups and return map of ldap groups to organizations teams
func (ls *Source) mapLdapGroupsToTeams() map[string]map[string][]string {
func (source *Source) mapLdapGroupsToTeams() map[string]map[string][]string {
ldapGroupsToTeams := make(map[string]map[string][]string)
err := json.Unmarshal([]byte(ls.GroupTeamMap), &ldapGroupsToTeams)
err := json.Unmarshal([]byte(source.GroupTeamMap), &ldapGroupsToTeams)
if err != nil {
log.Error("Failed to unmarshall LDAP teams map: %v", err)
return ldapGroupsToTeams
@ -239,11 +239,11 @@ func (ls *Source) mapLdapGroupsToTeams() map[string]map[string][]string {
}
// getMappedMemberships : returns the organizations and teams to modify the users membership
func (ls *Source) getMappedMemberships(l *ldap.Conn, uid string) (map[string][]string, map[string][]string) {
func (source *Source) getMappedMemberships(l *ldap.Conn, uid string) (map[string][]string, map[string][]string) {
// get all LDAP group memberships for user
usersLdapGroups := ls.listLdapGroupMemberships(l, uid)
usersLdapGroups := source.listLdapGroupMemberships(l, uid)
// unmarshall LDAP group team map from configs
ldapGroupsToTeams := ls.mapLdapGroupsToTeams()
ldapGroupsToTeams := source.mapLdapGroupsToTeams()
membershipsToAdd := map[string][]string{}
membershipsToRemove := map[string][]string{}
for group, memberships := range ldapGroupsToTeams {
@ -262,26 +262,26 @@ func (ls *Source) getMappedMemberships(l *ldap.Conn, uid string) (map[string][]s
}
// SearchEntry : search an LDAP source if an entry (name, passwd) is valid and in the specific filter
func (ls *Source) SearchEntry(name, passwd string, directBind bool) *SearchResult {
func (source *Source) SearchEntry(name, passwd string, directBind bool) *SearchResult {
// See https://tools.ietf.org/search/rfc4513#section-5.1.2
if len(passwd) == 0 {
log.Debug("Auth. failed for %s, password cannot be empty", name)
return nil
}
l, err := dial(ls)
l, err := dial(source)
if err != nil {
log.Error("LDAP Connect error, %s:%v", ls.Host, err)
ls.Enabled = false
log.Error("LDAP Connect error, %s:%v", source.Host, err)
source.Enabled = false
return nil
}
defer l.Close()
var userDN string
if directBind {
log.Trace("LDAP will bind directly via UserDN template: %s", ls.UserDN)
log.Trace("LDAP will bind directly via UserDN template: %s", source.UserDN)
var ok bool
userDN, ok = ls.sanitizedUserDN(name)
userDN, ok = source.sanitizedUserDN(name)
if !ok {
return nil
@ -292,11 +292,11 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) *SearchResul
return nil
}
if ls.UserBase != "" {
if source.UserBase != "" {
// not everyone has a CN compatible with input name so we need to find
// the real userDN in that case
userDN, ok = ls.findUserDN(l, name)
userDN, ok = source.findUserDN(l, name)
if !ok {
return nil
}
@ -306,24 +306,24 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) *SearchResul
var found bool
if ls.BindDN != "" && ls.BindPassword != "" {
err := l.Bind(ls.BindDN, ls.BindPassword)
if source.BindDN != "" && source.BindPassword != "" {
err := l.Bind(source.BindDN, source.BindPassword)
if err != nil {
log.Debug("Failed to bind as BindDN[%s]: %v", ls.BindDN, err)
log.Debug("Failed to bind as BindDN[%s]: %v", source.BindDN, err)
return nil
}
log.Trace("Bound as BindDN %s", ls.BindDN)
log.Trace("Bound as BindDN %s", source.BindDN)
} else {
log.Trace("Proceeding with anonymous LDAP search.")
}
userDN, found = ls.findUserDN(l, name)
userDN, found = source.findUserDN(l, name)
if !found {
return nil
}
}
if !ls.AttributesInBind {
if !source.AttributesInBind {
// binds user (checking password) before looking-up attributes in user context
err = bindUser(l, userDN, passwd)
if err != nil {
@ -331,26 +331,26 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) *SearchResul
}
}
userFilter, ok := ls.sanitizedUserQuery(name)
userFilter, ok := source.sanitizedUserQuery(name)
if !ok {
return nil
}
isAttributeSSHPublicKeySet := len(strings.TrimSpace(ls.AttributeSSHPublicKey)) > 0
isAtributeAvatarSet := len(strings.TrimSpace(ls.AttributeAvatar)) > 0
isAttributeSSHPublicKeySet := len(strings.TrimSpace(source.AttributeSSHPublicKey)) > 0
isAtributeAvatarSet := len(strings.TrimSpace(source.AttributeAvatar)) > 0
attribs := []string{ls.AttributeUsername, ls.AttributeName, ls.AttributeSurname, ls.AttributeMail}
if len(strings.TrimSpace(ls.UserUID)) > 0 {
attribs = append(attribs, ls.UserUID)
attribs := []string{source.AttributeUsername, source.AttributeName, source.AttributeSurname, source.AttributeMail}
if len(strings.TrimSpace(source.UserUID)) > 0 {
attribs = append(attribs, source.UserUID)
}
if isAttributeSSHPublicKeySet {
attribs = append(attribs, ls.AttributeSSHPublicKey)
attribs = append(attribs, source.AttributeSSHPublicKey)
}
if isAtributeAvatarSet {
attribs = append(attribs, ls.AttributeAvatar)
attribs = append(attribs, source.AttributeAvatar)
}
log.Trace("Fetching attributes '%v', '%v', '%v', '%v', '%v', '%v', '%v' with filter '%s' and base '%s'", ls.AttributeUsername, ls.AttributeName, ls.AttributeSurname, ls.AttributeMail, ls.AttributeSSHPublicKey, ls.AttributeAvatar, ls.UserUID, userFilter, userDN)
log.Trace("Fetching attributes '%v', '%v', '%v', '%v', '%v', '%v', '%v' with filter '%s' and base '%s'", source.AttributeUsername, source.AttributeName, source.AttributeSurname, source.AttributeMail, source.AttributeSSHPublicKey, source.AttributeAvatar, source.UserUID, userFilter, userDN)
search := ldap.NewSearchRequest(
userDN, ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false, userFilter,
attribs, nil)
@ -372,30 +372,30 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) *SearchResul
var sshPublicKey []string
var Avatar []byte
username := sr.Entries[0].GetAttributeValue(ls.AttributeUsername)
firstname := sr.Entries[0].GetAttributeValue(ls.AttributeName)
surname := sr.Entries[0].GetAttributeValue(ls.AttributeSurname)
mail := sr.Entries[0].GetAttributeValue(ls.AttributeMail)
uid := sr.Entries[0].GetAttributeValue(ls.UserUID)
if ls.UserUID == "dn" || ls.UserUID == "DN" {
username := sr.Entries[0].GetAttributeValue(source.AttributeUsername)
firstname := sr.Entries[0].GetAttributeValue(source.AttributeName)
surname := sr.Entries[0].GetAttributeValue(source.AttributeSurname)
mail := sr.Entries[0].GetAttributeValue(source.AttributeMail)
uid := sr.Entries[0].GetAttributeValue(source.UserUID)
if source.UserUID == "dn" || source.UserUID == "DN" {
uid = sr.Entries[0].DN
}
// Check group membership
if ls.GroupsEnabled && ls.GroupFilter != "" {
groupFilter, ok := ls.sanitizedGroupFilter(ls.GroupFilter)
if source.GroupsEnabled && source.GroupFilter != "" {
groupFilter, ok := source.sanitizedGroupFilter(source.GroupFilter)
if !ok {
return nil
}
groupDN, ok := ls.sanitizedGroupDN(ls.GroupDN)
groupDN, ok := source.sanitizedGroupDN(source.GroupDN)
if !ok {
return nil
}
log.Trace("Fetching groups '%v' with filter '%s' and base '%s'", ls.GroupMemberUID, groupFilter, groupDN)
log.Trace("Fetching groups '%v' with filter '%s' and base '%s'", source.GroupMemberUID, groupFilter, groupDN)
groupSearch := ldap.NewSearchRequest(
groupDN, ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false, groupFilter,
[]string{ls.GroupMemberUID},
[]string{source.GroupMemberUID},
nil)
srg, err := l.Search(groupSearch)
@ -410,8 +410,8 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) *SearchResul
isMember := false
Entries:
for _, group := range srg.Entries {
for _, member := range group.GetAttributeValues(ls.GroupMemberUID) {
if (ls.UserUID == "dn" && member == sr.Entries[0].DN) || member == uid {
for _, member := range group.GetAttributeValues(source.GroupMemberUID) {
if (source.UserUID == "dn" && member == sr.Entries[0].DN) || member == uid {
isMember = true
break Entries
}
@ -425,25 +425,25 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) *SearchResul
}
if isAttributeSSHPublicKeySet {
sshPublicKey = sr.Entries[0].GetAttributeValues(ls.AttributeSSHPublicKey)
sshPublicKey = sr.Entries[0].GetAttributeValues(source.AttributeSSHPublicKey)
}
isAdmin := checkAdmin(l, ls, userDN)
isAdmin := checkAdmin(l, source, userDN)
var isRestricted bool
if !isAdmin {
isRestricted = checkRestricted(l, ls, userDN)
isRestricted = checkRestricted(l, source, userDN)
}
if isAtributeAvatarSet {
Avatar = sr.Entries[0].GetRawAttributeValue(ls.AttributeAvatar)
Avatar = sr.Entries[0].GetRawAttributeValue(source.AttributeAvatar)
}
teamsToAdd := make(map[string][]string)
teamsToRemove := make(map[string][]string)
if ls.GroupsEnabled && (ls.GroupTeamMap != "" || ls.GroupTeamMapRemoval) {
teamsToAdd, teamsToRemove = ls.getMappedMemberships(l, uid)
if source.GroupsEnabled && (source.GroupTeamMap != "" || source.GroupTeamMapRemoval) {
teamsToAdd, teamsToRemove = source.getMappedMemberships(l, uid)
}
if !directBind && ls.AttributesInBind {
if !directBind && source.AttributesInBind {
// binds user (checking password) after looking-up attributes in BindDN context
err = bindUser(l, userDN, passwd)
if err != nil {
@ -467,52 +467,52 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) *SearchResul
}
// UsePagedSearch returns if need to use paged search
func (ls *Source) UsePagedSearch() bool {
return ls.SearchPageSize > 0
func (source *Source) UsePagedSearch() bool {
return source.SearchPageSize > 0
}
// SearchEntries : search an LDAP source for all users matching userFilter
func (ls *Source) SearchEntries() ([]*SearchResult, error) {
l, err := dial(ls)
func (source *Source) SearchEntries() ([]*SearchResult, error) {
l, err := dial(source)
if err != nil {
log.Error("LDAP Connect error, %s:%v", ls.Host, err)
ls.Enabled = false
log.Error("LDAP Connect error, %s:%v", source.Host, err)
source.Enabled = false
return nil, err
}
defer l.Close()
if ls.BindDN != "" && ls.BindPassword != "" {
err := l.Bind(ls.BindDN, ls.BindPassword)
if source.BindDN != "" && source.BindPassword != "" {
err := l.Bind(source.BindDN, source.BindPassword)
if err != nil {
log.Debug("Failed to bind as BindDN[%s]: %v", ls.BindDN, err)
log.Debug("Failed to bind as BindDN[%s]: %v", source.BindDN, err)
return nil, err
}
log.Trace("Bound as BindDN %s", ls.BindDN)
log.Trace("Bound as BindDN %s", source.BindDN)
} else {
log.Trace("Proceeding with anonymous LDAP search.")
}
userFilter := fmt.Sprintf(ls.Filter, "*")
userFilter := fmt.Sprintf(source.Filter, "*")
isAttributeSSHPublicKeySet := len(strings.TrimSpace(ls.AttributeSSHPublicKey)) > 0
isAtributeAvatarSet := len(strings.TrimSpace(ls.AttributeAvatar)) > 0
isAttributeSSHPublicKeySet := len(strings.TrimSpace(source.AttributeSSHPublicKey)) > 0
isAtributeAvatarSet := len(strings.TrimSpace(source.AttributeAvatar)) > 0
attribs := []string{ls.AttributeUsername, ls.AttributeName, ls.AttributeSurname, ls.AttributeMail, ls.UserUID}
attribs := []string{source.AttributeUsername, source.AttributeName, source.AttributeSurname, source.AttributeMail, source.UserUID}
if isAttributeSSHPublicKeySet {
attribs = append(attribs, ls.AttributeSSHPublicKey)
attribs = append(attribs, source.AttributeSSHPublicKey)
}
if isAtributeAvatarSet {
attribs = append(attribs, ls.AttributeAvatar)
attribs = append(attribs, source.AttributeAvatar)
}
log.Trace("Fetching attributes '%v', '%v', '%v', '%v', '%v', '%v' with filter %s and base %s", ls.AttributeUsername, ls.AttributeName, ls.AttributeSurname, ls.AttributeMail, ls.AttributeSSHPublicKey, ls.AttributeAvatar, userFilter, ls.UserBase)
log.Trace("Fetching attributes '%v', '%v', '%v', '%v', '%v', '%v' with filter %s and base %s", source.AttributeUsername, source.AttributeName, source.AttributeSurname, source.AttributeMail, source.AttributeSSHPublicKey, source.AttributeAvatar, userFilter, source.UserBase)
search := ldap.NewSearchRequest(
ls.UserBase, ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false, userFilter,
source.UserBase, ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false, userFilter,
attribs, nil)
var sr *ldap.SearchResult
if ls.UsePagedSearch() {
sr, err = l.SearchWithPaging(search, ls.SearchPageSize)
if source.UsePagedSearch() {
sr, err = l.SearchWithPaging(search, source.SearchPageSize)
} else {
sr, err = l.Search(search)
}
@ -526,30 +526,30 @@ func (ls *Source) SearchEntries() ([]*SearchResult, error) {
for i, v := range sr.Entries {
teamsToAdd := make(map[string][]string)
teamsToRemove := make(map[string][]string)
if ls.GroupsEnabled && (ls.GroupTeamMap != "" || ls.GroupTeamMapRemoval) {
userAttributeListedInGroup := v.GetAttributeValue(ls.UserUID)
if ls.UserUID == "dn" || ls.UserUID == "DN" {
if source.GroupsEnabled && (source.GroupTeamMap != "" || source.GroupTeamMapRemoval) {
userAttributeListedInGroup := v.GetAttributeValue(source.UserUID)
if source.UserUID == "dn" || source.UserUID == "DN" {
userAttributeListedInGroup = v.DN
}
teamsToAdd, teamsToRemove = ls.getMappedMemberships(l, userAttributeListedInGroup)
teamsToAdd, teamsToRemove = source.getMappedMemberships(l, userAttributeListedInGroup)
}
result[i] = &SearchResult{
Username: v.GetAttributeValue(ls.AttributeUsername),
Name: v.GetAttributeValue(ls.AttributeName),
Surname: v.GetAttributeValue(ls.AttributeSurname),
Mail: v.GetAttributeValue(ls.AttributeMail),
IsAdmin: checkAdmin(l, ls, v.DN),
Username: v.GetAttributeValue(source.AttributeUsername),
Name: v.GetAttributeValue(source.AttributeName),
Surname: v.GetAttributeValue(source.AttributeSurname),
Mail: v.GetAttributeValue(source.AttributeMail),
IsAdmin: checkAdmin(l, source, v.DN),
LdapTeamAdd: teamsToAdd,
LdapTeamRemove: teamsToRemove,
}
if !result[i].IsAdmin {
result[i].IsRestricted = checkRestricted(l, ls, v.DN)
result[i].IsRestricted = checkRestricted(l, source, v.DN)
}
if isAttributeSSHPublicKeySet {
result[i].SSHPublicKey = v.GetAttributeValues(ls.AttributeSSHPublicKey)
result[i].SSHPublicKey = v.GetAttributeValues(source.AttributeSSHPublicKey)
}
if isAtributeAvatarSet {
result[i].Avatar = v.GetRawAttributeValue(ls.AttributeAvatar)
result[i].Avatar = v.GetRawAttributeValue(source.AttributeAvatar)
}
result[i].LowerName = strings.ToLower(result[i].Username)
}