1 files changed, 115 insertions, 0 deletions
diff --git a/vendor/spomky-labs/otphp/src/Factory.php b/vendor/spomky-labs/otphp/src/Factory.php
new file mode 100644
index 000000000..70df63945
--- /dev/null
+++ b/vendor/spomky-labs/otphp/src/Factory.php
@@ -0,0 +1,115 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014-2019 Spomky-Labs
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+namespace OTPHP;
+
+use Assert\Assertion;
+use InvalidArgumentException;
+use function Safe\parse_url;
+use function Safe\sprintf;
+use Throwable;
+
+/**
+ * This class is used to load OTP object from a provisioning Uri.
+ */
+final class Factory implements FactoryInterface
+{
+    public static function loadFromProvisioningUri(string $uri): OTPInterface
+    {
+        try {
+            $parsed_url = parse_url($uri);
+        } catch (Throwable $throwable) {
+            throw new InvalidArgumentException('Not a valid OTP provisioning URI', $throwable->getCode(), $throwable);
+        }
+        Assertion::isArray($parsed_url, 'Not a valid OTP provisioning URI');
+        self::checkData($parsed_url);
+
+        $otp = self::createOTP($parsed_url);
+
+        self::populateOTP($otp, $parsed_url);
+
+        return $otp;
+    }
+
+    /**
+     * @param array<string, mixed> $data
+     */
+    private static function populateParameters(OTPInterface &$otp, array $data): void
+    {
+        foreach ($data['query'] as $key => $value) {
+            $otp->setParameter($key, $value);
+        }
+    }
+
+    /**
+     * @param array<string, mixed> $data
+     */
+    private static function populateOTP(OTPInterface &$otp, array $data): void
+    {
+        self::populateParameters($otp, $data);
+        $result = explode(':', rawurldecode(mb_substr($data['path'], 1)));
+
+        if (2 > \count($result)) {
+            $otp->setIssuerIncludedAsParameter(false);
+
+            return;
+        }
+
+        if (null !== $otp->getIssuer()) {
+            Assertion::eq($result[0], $otp->getIssuer(), 'Invalid OTP: invalid issuer in parameter');
+            $otp->setIssuerIncludedAsParameter(true);
+        }
+        $otp->setIssuer($result[0]);
+    }
+
+    /**
+     * @param array<string, mixed> $data
+     */
+    private static function checkData(array &$data): void
+    {
+        foreach (['scheme', 'host', 'path', 'query'] as $key) {
+            Assertion::keyExists($data, $key, 'Not a valid OTP provisioning URI');
+        }
+        Assertion::eq('otpauth', $data['scheme'], 'Not a valid OTP provisioning URI');
+        parse_str($data['query'], $data['query']);
+        Assertion::keyExists($data['query'], 'secret', 'Not a valid OTP provisioning URI');
+    }
+
+    /**
+     * @param array<string, mixed> $parsed_url
+     */
+    private static function createOTP(array $parsed_url): OTPInterface
+    {
+        switch ($parsed_url['host']) {
+            case 'totp':
+                $totp = TOTP::create($parsed_url['query']['secret']);
+                $totp->setLabel(self::getLabel($parsed_url['path']));
+
+                return $totp;
+            case 'hotp':
+                $hotp = HOTP::create($parsed_url['query']['secret']);
+                $hotp->setLabel(self::getLabel($parsed_url['path']));
+
+                return $hotp;
+            default:
+                throw new InvalidArgumentException(sprintf('Unsupported "%s" OTP type', $parsed_url['host']));
+        }
+    }
+
+    private static function getLabel(string $data): string
+    {
+        $result = explode(':', rawurldecode(mb_substr($data, 1)));
+
+        return 2 === \count($result) ? $result[1] : $result[0];
+    }
+}