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cli-plugins/hooks: limit maximum number of lines / messages

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Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn
2026-05-07 17:09:52 +02:00
parent 4001288d95
commit b7ab63387a
1 changed files with 6 additions and 1 deletions
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cli-plugins/hooks/template.go
+6 -1
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@@ -13,6 +13,8 @@ import (
"github.com/spf13/cobra" "github.com/spf13/cobra"
) )
const maxMessages = 10
func ParseTemplate(hookTemplate string, cmd *cobra.Command) ([]string, error) { func ParseTemplate(hookTemplate string, cmd *cobra.Command) ([]string, error) {
out := hookTemplate out := hookTemplate
if strings.Contains(hookTemplate, "{{") { if strings.Contains(hookTemplate, "{{") {
@@ -38,7 +40,10 @@ func ParseTemplate(hookTemplate string, cmd *cobra.Command) ([]string, error) {
} }
out = b.String() out = b.String()
} }
return strings.Split(out, "\n"), nil if n := strings.Count(out, "\n"); n > maxMessages {
return nil, fmt.Errorf("hook template contains too many messages (%d): maximum is %d", n, maxMessages)
}
return strings.SplitN(out, "\n", maxMessages), nil
} }
var ErrHookTemplateParse = errors.New("failed to parse hook template") var ErrHookTemplateParse = errors.New("failed to parse hook template")