WhitelistFileHeaderPreProcessorTest.php

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<?php

namespace ILIAS\FileUpload\Processor;

require_once('./libs/composer/vendor/autoload.php');

use ILIAS\Filesystem\Stream\Streams;
use ILIAS\FileUpload\DTO\Metadata;
use ILIAS\FileUpload\DTO\ProcessingStatus;
use PHPUnit\Framework\TestCase;

class WhitelistFileHeaderPreProcessorTest extends TestCase
{

    public function testProcessWhichShouldSucceed()
    {
        $fileHeaderStart = hex2bin('FFD8FF'); //jpg header start
        $trailer = hex2bin('FFD9'); //jpg trailer
        $subject = new WhitelistFileHeaderPreProcessor($fileHeaderStart);
        $stream = Streams::ofString("$fileHeaderStart bla bla bla $trailer");
        $stream->rewind();

        $result = $subject->process($stream, new Metadata('hello.jpg', $stream->getSize(), 'image/jpg'));

        $this->assertSame(ProcessingStatus::OK, $result->getCode());
        $this->assertSame('File header complies with whitelist.', $result->getMessage());
    }

    public function testProcessWithHeaderMismatchWhichShouldGetRejected()
    {
        $fileHeaderWhitelist = hex2bin('FFD8FF'); //jpg header start
        $fileHeaderStart = hex2bin('FFD8FB'); //jpg header start
        $trailer = hex2bin('FFD9'); //jpg trailer
        $subject = new WhitelistFileHeaderPreProcessor($fileHeaderWhitelist);
        $stream = Streams::ofString("$fileHeaderStart bla bla bla $trailer");
        $stream->rewind();

        $result = $subject->process($stream, new Metadata('hello.jpg', $stream->getSize(), 'image/jpg'));

        $this->assertSame(ProcessingStatus::REJECTED, $result->getCode());
        $this->assertSame('File header don\'t complies with whitelist.', $result->getMessage());
    }
}