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ssh: Fix template regex test for defaultExtensions to allow additional text #16018

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merged 2 commits into from Jun 17, 2022
Merged

ssh: Fix template regex test for defaultExtensions to allow additional text #16018

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e1625ce
ssh: Fix template regex test for defaultExtensions
stevendpclark Jun 16, 2022
fd691ad
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stevendpclark Jun 16, 2022
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5 changes: 4 additions & 1 deletion builtin/logical/ssh/backend_test.go
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Expand Up @@ -1480,6 +1480,8 @@ func TestBackend_DefExtTemplatingEnabled(t *testing.T) {
"default_extensions_template": true,
"default_extensions": map[string]interface{}{
"login@foobar.com": "{{identity.entity.aliases." + userpassAccessor + ".name}}",
"login@foobar2.com": "{{identity.entity.aliases." + userpassAccessor + ".name}}, " +
"{{identity.entity.aliases." + userpassAccessor + ".name}}_foobar",
},
})
if err != nil {
Expand All @@ -1505,7 +1507,8 @@ func TestBackend_DefExtTemplatingEnabled(t *testing.T) {
}

defaultExtensionPermissions := map[string]string{
"login@foobar.com": testUserName,
"login@foobar.com": testUserName,
"login@foobar2.com": fmt.Sprintf("%s, %s_foobar", testUserName, testUserName),
}

err = validateSSHCertificate(parsedKey.(*ssh.Certificate), sshKeyID, ssh.UserCert, []string{"tuber"}, map[string]string{}, defaultExtensionPermissions, 16*time.Hour)
Expand Down
6 changes: 4 additions & 2 deletions builtin/logical/ssh/path_issue_sign.go
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Expand Up @@ -24,6 +24,8 @@ import (
"golang.org/x/crypto/ssh"
)

var containsTemplateRegex = regexp.MustCompile(`{{.+?}}`)

var ecCurveBitsToAlgoName = map[int]string{
256: ssh.KeyAlgoECDSA256,
384: ssh.KeyAlgoECDSA384,
Expand Down Expand Up @@ -149,7 +151,7 @@ func (b *backend) calculateValidPrincipals(data *framework.FieldData, req *logic
for _, principal := range strutil.RemoveDuplicates(strutil.ParseStringSlice(principalsAllowedByRole, ","), false) {
if role.AllowedUsersTemplate {
// Look for templating markers {{ .* }}
matched, _ := regexp.MatchString(`{{.+?}}`, principal)
matched := containsTemplateRegex.MatchString(principal)
if matched {
if req.EntityID != "" {
// Retrieve principal based on template + entityID from request.
Expand Down Expand Up @@ -313,7 +315,7 @@ func (b *backend) calculateExtensions(data *framework.FieldData, req *logical.Re
if role.DefaultExtensionsTemplate {
for extensionKey, extensionValue := range role.DefaultExtensions {
// Look for templating markers {{ .* }}
matched, _ := regexp.MatchString(`^{{.+?}}$`, extensionValue)
matched := containsTemplateRegex.MatchString(extensionValue)
if matched {
if req.EntityID != "" {
// Retrieve extension value based on template + entityID from request.
Expand Down
3 changes: 3 additions & 0 deletions changelog/16018.txt
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@@ -0,0 +1,3 @@
```release-note:improvement
secrets/ssh: Allow additional text along with a template definition in defaultExtension value fields.
```