54 lines
1.3 KiB
PHP
54 lines
1.3 KiB
PHP
<?php
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namespace App\Rules;
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use Illuminate\Contracts\Validation\Rule;
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class IsRobloxXml implements Rule
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{
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/**
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* Determine if the validation rule passes.
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*
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* @param string $attribute
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* @param mixed $value
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* @return bool
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*/
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public function passes($attribute, $value): bool
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{
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// because this has to work with livewire, request()->hasFile() will not work
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// so this is just assuming that the supplied value is an UploadedFile object
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$asset = $value->get();
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libxml_use_internal_errors(true);
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$document = simplexml_load_string($asset);
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if (!$document)
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{
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// invalid XML
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libxml_clear_errors();
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return false;
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}
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libxml_use_internal_errors(false);
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// now we just check for some nodes which **should** appear in all XML assets
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if (!$document->getName() == 'roblox') return false;
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if (count($document->xpath('//External')) < 2) return false;
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if (!count($document->xpath('//Item'))) return false;
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if (!count($document->xpath('//Properties'))) return false;
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return true;
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}
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/**
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* Get the validation error message.
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*
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* @return string
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*/
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public function message(): string
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{
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return __('Not a valid Roblox XML asset.');
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}
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}
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