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Support comma-escaped LDAP DN values

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This commit is contained in:
sauls8t 2019-10-30 13:57:07 +00:00
parent c7e71173ea
commit 811e239baf
2 changed files with 49 additions and 11 deletions
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21
domain/auth/ldap/ldap.go
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@ -210,7 +210,7 @@ func executeGroupFilter(c lm.LDAPConfig) (u []lm.LDAPUser, err error) {
// DN values can contain escaped commas like in two ways:
//
// \,
// \\5c,
// \5c,
//
// Relevant notes:
@ -223,21 +223,20 @@ func executeGroupFilter(c lm.LDAPConfig) (u []lm.LDAPUser, err error) {
//
// When we split on comma, here is our logic:
//
// 1. We replace any escaped comma values with a special character sequence, in this case !?!
// 2. We string.split on comma as per usual.
// 3. We put back the original escaped comma values.
// 1. Replace any escaped comma values with a special character sequence.
// 2. Split string on comma as per usual.
// 3. Put back the original escaped comma values.
func splitDN(dn string) []string {
var r string
r = strings.ReplaceAll(dn, "\\5c,", "!!1!!")
r = strings.ReplaceAll(dn, "\\,", "!!2!!")
dn = strings.ReplaceAll(dn, `\5c,`, "!!1!!")
dn = strings.ReplaceAll(dn, `\,`, "!!2!!")
sp := strings.Split(r, ",")
sp := strings.Split(dn, ",")
for i := range sp {
val := sp[i]
r2 := strings.ReplaceAll(val, "!!1!!", "\\5c,")
r2 = strings.ReplaceAll(val, "!!2!!", "\\,")
sp[i] = r2
val = strings.ReplaceAll(val, "!!1!!", `\5c,`)
val = strings.ReplaceAll(val, "!!2!!", `\,`)
sp[i] = val
}
return sp