init web ems all

phpMyAdmin/vendor/pragmarx/google2fa/src/Support/QRCode.php

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+<?php
+
+namespace PragmaRX\Google2FA\Support;
+
+use BaconQrCode\Renderer\Image\Png;
+use BaconQrCode\Writer as BaconQrCodeWriter;
+use PragmaRX\Google2FA\Exceptions\InsecureCallException;
+
+trait QRCode
+{
+    /**
+     * Sending your secret key to Google API is a security issue. Developer must explicitly allow it.
+     */
+    protected $allowInsecureCallToGoogleApis = false;
+
+    /**
+     * Creates a Google QR code url.
+     *
+     * @param string $company
+     * @param string $holder
+     * @param string $secret
+     * @param int    $size
+     *
+     * @throws InsecureCallException
+     *
+     * @return string
+     */
+    public function getQRCodeGoogleUrl($company, $holder, $secret, $size = 200)
+    {
+        if (!$this->allowInsecureCallToGoogleApis) {
+            throw new InsecureCallException('It\'s not secure to send secret keys to Google Apis, you have to explicitly allow it by calling $google2fa->setAllowInsecureCallToGoogleApis(true).');
+        }
+
+        $url = $this->getQRCodeUrl($company, $holder, $secret);
+
+        return Url::generateGoogleQRCodeUrl('https://chart.googleapis.com/', 'chart', 'chs='.$size.'x'.$size.'&chld=M|0&cht=qr&chl=', $url);
+    }
+
+    /**
+     * Generates a QR code data url to display inline.
+     *
+     * @param string $company
+     * @param string $holder
+     * @param string $secret
+     * @param int    $size
+     * @param string $encoding Default to UTF-8
+     *
+     * @return string
+     */
+    public function getQRCodeInline($company, $holder, $secret, $size = 200, $encoding = 'utf-8')
+    {
+        $url = $this->getQRCodeUrl($company, $holder, $secret);
+
+        $renderer = new Png();
+        $renderer->setWidth($size);
+        $renderer->setHeight($size);
+
+        $bacon = new BaconQrCodeWriter($renderer);
+        $data = $bacon->writeString($url, $encoding);
+
+        return 'data:image/png;base64,'.base64_encode($data);
+    }
+
+    /**
+     * Creates a QR code url.
+     *
+     * @param $company
+     * @param $holder
+     * @param $secret
+     *
+     * @return string
+     */
+    public function getQRCodeUrl($company, $holder, $secret)
+    {
+        return 'otpauth://totp/'.rawurlencode($company).':'.rawurlencode($holder).'?secret='.$secret.'&issuer='.rawurlencode($company).'';
+    }
+
+    /**
+     * AllowInsecureCallToGoogleApis setter.
+     *
+     * @param mixed $allowInsecureCallToGoogleApis
+     *
+     * @return QRCode
+     */
+    public function setAllowInsecureCallToGoogleApis($allowInsecureCallToGoogleApis)
+    {
+        $this->allowInsecureCallToGoogleApis = $allowInsecureCallToGoogleApis;
+
+        return $this;
+    }
+}