mirrors/headscale
1
0
Fork 0
mirror of https://github.com/juanfont/headscale.git synced 2025-10-31 16:11:03 +01:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #643 from iSchluff/fix/dns-name-panic

Browse Source
This commit is contained in:
Kristoffer Dalby 2022-06-16 14:07:21 +01:00 committed by GitHub
commit 8dda44105e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 25 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
utils.go
View File

@ -325,11 +325,17 @@ func GenerateRandomStringURLSafe(n int) (string, error) {
// number generator fails to function correctly, in which // number generator fails to function correctly, in which
// case the caller should not continue. // case the caller should not continue.
func GenerateRandomStringDNSSafe(n int) (string, error) { func GenerateRandomStringDNSSafe(n int) (string, error) {
str, err := GenerateRandomStringURLSafe(n) var str string
var err error
for len(str) < n {
str, err = GenerateRandomStringURLSafe(n)
if err != nil {
return "", err
}
str = strings.ToLower(strings.ReplaceAll(strings.ReplaceAll(str, "_", ""), "-", "")) str = strings.ToLower(strings.ReplaceAll(strings.ReplaceAll(str, "_", ""), "-", ""))
}
return str[:n], err return str[:n], nil
} }
func IsStringInSlice(slice []string, str string) bool { func IsStringInSlice(slice []string, str string) bool {

12
utils_test.go
View File

@ -185,3 +185,15 @@ func (s *Suite) TestGetAvailableIpMachineWithoutIP(c *check.C) {
c.Assert(len(ips2), check.Equals, 1) c.Assert(len(ips2), check.Equals, 1)
c.Assert(ips2[0].String(), check.Equals, expected.String()) c.Assert(ips2[0].String(), check.Equals, expected.String())
} }
func (s *Suite) TestGenerateRandomStringDNSSafe(c *check.C) {
for i := 0; i < 100000; i++ {
str, err := GenerateRandomStringDNSSafe(8)
if err != nil {
c.Error(err)
}
if len(str) != 8 {
c.Error("invalid length", len(str), str)
}
}
}