61 lines
1.4 KiB
PHP
61 lines
1.4 KiB
PHP
<?php
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namespace RobThree\Auth\Providers\Qr;
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// https://image-charts.com
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class ImageChartsQRCodeProvider extends BaseHTTPQRCodeProvider
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{
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/** @var string */
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public $errorcorrectionlevel;
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/** @var int */
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public $margin;
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/**
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* @param bool $verifyssl
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* @param string $errorcorrectionlevel
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* @param int $margin
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*/
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public function __construct($verifyssl = false, $errorcorrectionlevel = 'L', $margin = 1)
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{
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if (!is_bool($verifyssl)) {
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throw new QRException('VerifySSL must be bool');
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}
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$this->verifyssl = $verifyssl;
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$this->errorcorrectionlevel = $errorcorrectionlevel;
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$this->margin = $margin;
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}
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/**
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* {@inheritdoc}
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*/
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public function getMimeType()
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{
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return 'image/png';
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}
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/**
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* {@inheritdoc}
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*/
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public function getQRCodeImage($qrtext, $size)
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{
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return $this->getContent($this->getUrl($qrtext, $size));
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}
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/**
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* @param string $qrtext the value to encode in the QR code
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* @param int $size the desired size of the QR code
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*
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* @return string file contents of the QR code
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*/
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public function getUrl($qrtext, $size)
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{
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return 'https://image-charts.com/chart?cht=qr'
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. '&chs=' . ceil($size / 2) . 'x' . ceil($size / 2)
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. '&chld=' . $this->errorcorrectionlevel . '|' . $this->margin
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. '&chl=' . rawurlencode($qrtext);
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}
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}
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