67 lines
1.8 KiB
PHP
67 lines
1.8 KiB
PHP
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<?php
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declare(strict_types=1);
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final class QrCode
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{
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private int $fingerprintId;
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private string $fingerprint;
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private string $temporaryFilename;
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public function __construct(int $fingerprintId, string $fingerprint)
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{
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$this->fingerprintId = $fingerprintId;
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$this->fingerprint = $fingerprint;
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}
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public function save(): void
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{
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if (!is_file($this->temporaryFilename)) {
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throw new QrCodeException(
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sprintf('Temporary QR file %s couldn\'t be found!', $this->temporaryFilename)
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);
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}
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$returnCode = 0;
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$path = substr(Setting::PATH_QR_CODES, -1) === '/'
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? Setting::PATH_QR_CODES
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: Setting::PATH_QR_CODES . '/';
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$filename = $path . $this->fingerprintId . '.svg';
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passthru(
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sprintf('mv %s %s', $this->temporaryFilename, $filename),
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$returnCode
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);
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if ($returnCode !== 0 || !is_file($filename)) {
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throw new QrCodeException(
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sprintf('QR code for fingerprint %d couldn\'t be created!', $this->fingerprintId)
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);
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}
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}
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public function generate(): bool
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{
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$returnCode = 0;
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$path = substr(Setting::PATH_TMP, -1) === '/' ? Setting::PATH_TMP : Setting::PATH_TMP . '/';
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$this->temporaryFilename = $path . $this->generateTemporaryFilename() . '.svg';
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passthru(
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sprintf('qrencode -o %s -t SVG "%s"', $this->temporaryFilename, $this->fingerprint),
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$returnCode
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);
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return !(bool)$returnCode;
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}
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private function generateTemporaryFilename(): string
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{
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$hash = hash('md5', (new DateTime())->format('U') . $this->fingerprint);
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return sprintf('%s.svg', $hash);
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}
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}
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