56 lines
1.7 KiB
PHP
56 lines
1.7 KiB
PHP
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<?php
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namespace App\Rules;
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use Closure;
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use Illuminate\Contracts\Validation\ValidationRule;
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use Symfony\Component\Yaml\Exception\ParseException;
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use Symfony\Component\Yaml\Yaml;
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class ValidCloudInitYaml implements ValidationRule
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{
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/**
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* Run the validation rule.
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*
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* Validates that the cloud-init script is either:
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* - Valid YAML format (for cloud-config)
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* - Valid bash script (starting with #!)
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* - Empty/null (optional field)
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*/
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public function validate(string $attribute, mixed $value, Closure $fail): void
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{
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if (empty($value)) {
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return;
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}
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$script = trim($value);
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// If it's a bash script (starts with shebang), skip YAML validation
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if (str_starts_with($script, '#!')) {
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return;
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}
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// If it's a cloud-config file (starts with #cloud-config), validate YAML
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if (str_starts_with($script, '#cloud-config')) {
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// Remove the #cloud-config header and validate the rest as YAML
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$yamlContent = preg_replace('/^#cloud-config\s*/m', '', $script, 1);
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try {
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Yaml::parse($yamlContent);
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} catch (ParseException $e) {
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$fail('The :attribute must be valid YAML format. Error: '.$e->getMessage());
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}
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return;
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}
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// If it doesn't start with #! or #cloud-config, try to parse as YAML
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// (some users might omit the #cloud-config header)
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try {
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Yaml::parse($script);
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} catch (ParseException $e) {
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$fail('The :attribute must be either a valid bash script (starting with #!) or valid cloud-config YAML. YAML parse error: '.$e->getMessage());
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}
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}
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}
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