port totp mfa from streams with some adjustions

1 files changed, 100 insertions, 0 deletions

diff --git a/vendor/chillerlan/php-qrcode/examples/QRImageWithText.php b/vendor/chillerlan/php-qrcode/examples/QRImageWithText.php
new file mode 100644
index 000000000..fe6b962a9
--- /dev/null
+++ b/vendor/chillerlan/php-qrcode/examples/QRImageWithText.php
@@ -0,0 +1,100 @@
+<?php
+/**
+ * Class QRImageWithText
+ *
+ * example for additional text
+ *
+ * @link         https://github.com/chillerlan/php-qrcode/issues/35
+ *
+ * @filesource   QRImageWithText.php
+ * @created      22.06.2019
+ * @package      chillerlan\QRCodeExamples
+ * @author       smiley <smiley@chillerlan.net>
+ * @copyright    2019 smiley
+ * @license      MIT
+ *
+ * @noinspection PhpComposerExtensionStubsInspection
+ */
+
+namespace chillerlan\QRCodeExamples;
+
+use chillerlan\QRCode\Output\QRImage;
+
+use function base64_encode, imagechar, imagecolorallocate, imagecolortransparent, imagecopymerge, imagecreatetruecolor,
+	imagedestroy, imagefilledrectangle, imagefontwidth, in_array, round, str_split, strlen;
+
+class QRImageWithText extends QRImage{
+
+	/**
+	 * @param string|null $file
+	 * @param string|null $text
+	 *
+	 * @return string
+	 */
+	public function dump(string $file = null, string $text = null):string{
+		// set returnResource to true to skip further processing for now
+		$this->options->returnResource = true;
+
+		// there's no need to save the result of dump() into $this->image here
+		parent::dump($file);
+
+		// render text output if a string is given
+		if($text !== null){
+			$this->addText($text);
+		}
+
+		$imageData = $this->dumpImage();
+
+		if($file !== null){
+			$this->saveToFile($imageData, $file);
+		}
+
+		if($this->options->imageBase64){
+			$imageData = 'data:image/'.$this->options->outputType.';base64,'.base64_encode($imageData);
+		}
+
+		return $imageData;
+	}
+
+	/**
+	 * @param string $text
+	 */
+	protected function addText(string $text):void{
+		// save the qrcode image
+		$qrcode = $this->image;
+
+		// options things
+		$textSize  = 3; // see imagefontheight() and imagefontwidth()
+		$textBG    = [200, 200, 200];
+		$textColor = [50, 50, 50];
+
+		$bgWidth  = $this->length;
+		$bgHeight = $bgWidth + 20; // 20px extra space
+
+		// create a new image with additional space
+		$this->image = imagecreatetruecolor($bgWidth, $bgHeight);
+		$background  = imagecolorallocate($this->image, ...$textBG);
+
+		// allow transparency
+		if($this->options->imageTransparent && in_array($this->options->outputType, $this::TRANSPARENCY_TYPES, true)){
+			imagecolortransparent($this->image, $background);
+		}
+
+		// fill the background
+		imagefilledrectangle($this->image, 0, 0, $bgWidth, $bgHeight, $background);
+
+		// copy over the qrcode
+		imagecopymerge($this->image, $qrcode, 0, 0, 0, 0, $this->length, $this->length, 100);
+		imagedestroy($qrcode);
+
+		$fontColor = imagecolorallocate($this->image, ...$textColor);
+		$w         = imagefontwidth($textSize);
+		$x         = round(($bgWidth - strlen($text) * $w) / 2);
+
+		// loop through the string and draw the letters
+		foreach(str_split($text) as $i => $chr){
+			imagechar($this->image, $textSize, (int)($i * $w + $x), $this->length, $chr, $fontColor);
+		}
+	}
+
+}