Move source files directly under src/ directory

src/ExpressionLanguage/AuthenticatorProvider.php

@@ -0,0 +1,96 @@
+<?php
+
+namespace Wallabag\CoreBundle\ExpressionLanguage;
+
+use GuzzleHttp\ClientInterface;
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+
+class AuthenticatorProvider implements ExpressionFunctionProviderInterface
+{
+    /**
+     * @var ClientInterface
+     */
+    private $guzzle;
+
+    public function __construct(ClientInterface $guzzle)
+    {
+        $this->guzzle = $guzzle;
+    }
+
+    public function getFunctions(): array
+    {
+        $result = [
+            $this->getRequestHtmlFunction(),
+            $this->getXpathFunction(),
+            $this->getPregMatchFunction(),
+        ];
+
+        return $result;
+    }
+
+    private function getRequestHtmlFunction()
+    {
+        return new ExpressionFunction(
+            'request_html',
+            function () {
+                throw new \Exception('Not supported');
+            },
+            function (array $arguments, $uri, array $options = []) {
+                return $this->guzzle->get($uri, $options)->getBody();
+            }
+        );
+    }
+
+    private function getPregMatchFunction()
+    {
+        return new ExpressionFunction(
+            'preg_match',
+            function () {
+                throw new \Exception('Not supported');
+            },
+            function (array $arguments, $pattern, $html) {
+                preg_match($pattern, $html, $matches);
+
+                if (2 !== \count($matches)) {
+                    return '';
+                }
+
+                return $matches[1];
+            }
+        );
+    }
+
+    private function getXpathFunction()
+    {
+        return new ExpressionFunction(
+            'xpath',
+            function () {
+                throw new \Exception('Not supported');
+            },
+            function (array $arguments, $xpathQuery, $html) {
+                $useInternalErrors = libxml_use_internal_errors(true);
+
+                $doc = new \DOMDocument();
+                $doc->loadHTML((string) $html, \LIBXML_NOCDATA | \LIBXML_NOWARNING | \LIBXML_NOERROR);
+
+                $xpath = new \DOMXPath($doc);
+                $domNodeList = $xpath->query($xpathQuery);
+
+                if (0 === $domNodeList->length) {
+                    return '';
+                }
+
+                $domNode = $domNodeList->item(0);
+
+                libxml_use_internal_errors($useInternalErrors);
+
+                if (null === $domNode || null === $domNode->attributes) {
+                    return '';
+                }
+
+                return $domNode->attributes->getNamedItem('value')->nodeValue;
+            }
+        );
+    }
+}