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<?php /** @noinspection PhpCSValidationInspection */ |
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/** |
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* Generates an QR code for bitcoin. |
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* |
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* @package Shariff Wrapper |
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*/ |
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|
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// prevent external use (as is requested by the automated Plugin Check) |
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if ( ! defined( 'ABSPATH' ) ) { define( 'ABSPATH', __DIR__ . '/' ); } |
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if ( ! defined( 'ABSPATH' ) ) exit; |
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|
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// Includes php class for QR code generation. |
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require './includes/phpqrcode.php'; |
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|
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// Gets the bitcoin address. |
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$bitcoinaddress = htmlspecialchars( $_GET['bitcoinaddress'] ); |
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// real plausi check on valid address and nothing else |
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if ( ! preg_match( '/^([13][a-km-zA-HJ-NP-Z1-9]{25,34}|bc1[ac-hj-np-z02-9]{11,87})$/', $bitcoinaddress ) ) { http_response_code(400); die(); } |
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|
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// Creates the page. |
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echo '<html lang="en"><head><title>Bitcoin</title></head><body>'; |
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echo '<div style="text-align:center;"><h1>Bitcoin</h1></div>'; |
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echo '<p style="text-align:center;"><a href="bitcoin:' . $bitcoinaddress . '">bitcoin:' . $bitcoinaddress . '</a></p>'; |
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echo '<p style="text-align:center;">'; |
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QRcode::svg( $bitcoinaddress, false, 'h', 5 ); |
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echo '</p>'; |
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echo '<p style="text-align:center;">Information: <a href="https://www.bitcoin.org" target="_blank">bitcoin.org</a></p>'; |
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echo '</body></html>'; |
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