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QRServerProvider.php
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QRServerProvider.php
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<?php
namespace RobThree\Auth\Providers\Qr;
// http://goqr.me/api/doc/create-qr-code/
class QRServerProvider extends BaseHTTPQRCodeProvider
{
/** @var string */
public $errorcorrectionlevel;
/** @var int */
public $margin;
/** @var int */
public $qzone;
/** @var string */
public $bgcolor;
/** @var string */
public $color;
/** @var string */
public $format;
/**
* @param bool $verifyssl
* @param string $errorcorrectionlevel
* @param int $margin
* @param int $qzone
* @param string $bgcolor
* @param string $color
* @param string $format
*/
public function __construct($verifyssl = false, $errorcorrectionlevel = 'L', $margin = 4, $qzone = 1, $bgcolor = 'ffffff', $color = '000000', $format = 'png')
{
if (!is_bool($verifyssl)) {
throw new QRException('VerifySSL must be bool');
}
$this->verifyssl = $verifyssl;
$this->errorcorrectionlevel = $errorcorrectionlevel;
$this->margin = $margin;
$this->qzone = $qzone;
$this->bgcolor = $bgcolor;
$this->color = $color;
$this->format = $format;
}
/**
* {@inheritdoc}
*/
public function getMimeType()
{
switch (strtolower($this->format)) {
case 'png':
return 'image/png';
case 'gif':
return 'image/gif';
case 'jpg':
case 'jpeg':
return 'image/jpeg';
case 'svg':
return 'image/svg+xml';
case 'eps':
return 'application/postscript';
}
throw new QRException(sprintf('Unknown MIME-type: %s', $this->format));
}
/**
* {@inheritdoc}
*/
public function getQRCodeImage($qrtext, $size)
{
return $this->getContent($this->getUrl($qrtext, $size));
}
/**
* @param string $value
*
* @return string
*/
private function decodeColor($value)
{
return vsprintf('%d-%d-%d', sscanf($value, "%02x%02x%02x"));
}
/**
* @param string $qrtext the value to encode in the QR code
* @param int|string $size the desired size of the QR code
*
* @return string file contents of the QR code
*/
public function getUrl($qrtext, $size)
{
return 'https://api.qrserver.com/v1/create-qr-code/'
. '?size=' . $size . 'x' . $size
. '&ecc=' . strtoupper($this->errorcorrectionlevel)
. '&margin=' . $this->margin
. '&qzone=' . $this->qzone
. '&bgcolor=' . $this->decodeColor($this->bgcolor)
. '&color=' . $this->decodeColor($this->color)
. '&format=' . strtolower($this->format)
. '&data=' . rawurlencode($qrtext);
}
}

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QRServerProvider.php (2 KB)

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