* switch to composer for qrcode and otp dependencies

* move most OTP-related stuff into userhelper
* remove old phpqrcode and otphp libraries

vendor/chillerlan/php-qrcode/examples/svg.php

@@ -0,0 +1,77 @@
+<?php
+/**
+ *
+ * @filesource   svg.php
+ * @created      21.12.2017
+ * @author       Smiley <smiley@chillerlan.net>
+ * @copyright    2017 Smiley
+ * @license      MIT
+ */
+
+namespace chillerlan\QRCodeExamples;
+
+use chillerlan\QRCode\{QRCode, QROptions};
+
+require_once __DIR__.'/../vendor/autoload.php';
+
+$data = 'https://www.youtube.com/watch?v=DLzxrzFCyOs&t=43s';
+$gzip = true;
+
+$options = new QROptions([
+	'version'      => 7,
+	'outputType'   => QRCode::OUTPUT_MARKUP_SVG,
+	'eccLevel'     => QRCode::ECC_L,
+	'svgViewBoxSize' => 530,
+	'addQuietzone' => true,
+	'cssClass'     => 'my-css-class',
+	'svgOpacity'   => 1.0,
+	'svgDefs'      => '
+		<linearGradient id="g2">
+			<stop offset="0%" stop-color="#39F" />
+			<stop offset="100%" stop-color="#F3F" />
+		</linearGradient>
+		<linearGradient id="g1">
+			<stop offset="0%" stop-color="#F3F" />
+			<stop offset="100%" stop-color="#39F" />
+		</linearGradient>
+		<style>rect{shape-rendering:crispEdges}</style>',
+	'moduleValues' => [
+		// finder
+		1536 => 'url(#g1)', // dark (true)
+		6    => '#fff', // light (false)
+		// alignment
+		2560 => 'url(#g1)',
+		10   => '#fff',
+		// timing
+		3072 => 'url(#g1)',
+		12   => '#fff',
+		// format
+		3584 => 'url(#g1)',
+		14   => '#fff',
+		// version
+		4096 => 'url(#g1)',
+		16   => '#fff',
+		// data
+		1024 => 'url(#g2)',
+		4    => '#fff',
+		// darkmodule
+		512  => 'url(#g1)',
+		// separator
+		8    => '#fff',
+		// quietzone
+		18   => '#fff',
+	],
+]);
+
+$qrcode = (new QRCode($options))->render($data);
+
+header('Content-type: image/svg+xml');
+
+if($gzip === true){
+	header('Vary: Accept-Encoding');
+	header('Content-Encoding: gzip');
+	$qrcode = gzencode($qrcode ,9);
+}
+echo $qrcode;
+
+