From 9b915e24aff1c1805f1951ea78c09becc2a36271 Mon Sep 17 00:00:00 2001
From: Sean Molenaar <sean@seanmolenaar.eu>
Date: Sun, 17 Mar 2019 20:17:40 +0100
Subject: Use a copy of the FeedIO client that doesn't specify a useragent

---
 lib/Fetcher/Client/FeedIoClient.php         | 63 +++++++++++++++++++++
 lib/Fetcher/Client/LegacyGuzzleClient.php   | 64 +++++++++++++++++++++
 lib/Fetcher/Client/LegacyGuzzleResponse.php | 86 +++++++++++++++++++++++++++++
 3 files changed, 213 insertions(+)
 create mode 100644 lib/Fetcher/Client/FeedIoClient.php
 create mode 100644 lib/Fetcher/Client/LegacyGuzzleClient.php
 create mode 100644 lib/Fetcher/Client/LegacyGuzzleResponse.php

(limited to 'lib/Fetcher')

diff --git a/lib/Fetcher/Client/FeedIoClient.php b/lib/Fetcher/Client/FeedIoClient.php
new file mode 100644
index 000000000..d9ce8d897
--- /dev/null
+++ b/lib/Fetcher/Client/FeedIoClient.php
@@ -0,0 +1,63 @@
+<?php
+/*
+ * This file is part of the feed-io package.
+ *
+ * (c) Alexandre Debril <alex.debril@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace OCA\News\Fetcher\Client;
+
+use FeedIo\Adapter\ClientInterface;
+use FeedIo\Adapter\Guzzle\Response;
+use FeedIo\Adapter\NotFoundException;
+use FeedIo\Adapter\ServerErrorException;
+use GuzzleHttp\Exception\BadResponseException;
+
+/**
+ * Guzzle dependent HTTP client
+ */
+class FeedIoClient implements ClientInterface
+{
+    /**
+     * @var \GuzzleHttp\ClientInterface
+     */
+    protected $guzzleClient;
+
+    /**
+     * @param \GuzzleHttp\ClientInterface $guzzleClient
+     */
+    public function __construct(\GuzzleHttp\ClientInterface $guzzleClient)
+    {
+        $this->guzzleClient = $guzzleClient;
+    }
+
+    /**
+     * @param  string                               $url
+     * @param  \DateTime                            $modifiedSince
+     * @throws \FeedIo\Adapter\NotFoundException
+     * @throws \FeedIo\Adapter\ServerErrorException
+     * @return \FeedIo\Adapter\ResponseInterface
+     */
+    public function getResponse($url, \DateTime $modifiedSince)
+    {
+        try {
+            $options = [
+                'headers' => [
+                    'If-Modified-Since' => $modifiedSince->format(\DateTime::RFC2822)
+                ]
+            ];
+
+            return new Response($this->guzzleClient->request('get', $url, $options));
+        } catch (BadResponseException $e) {
+            switch ((int) $e->getResponse()->getStatusCode()) {
+                case 404:
+                    throw new NotFoundException($e->getMessage());
+                default:
+                    throw new ServerErrorException($e->getMessage());
+            }
+        }
+    }
+}
diff --git a/lib/Fetcher/Client/LegacyGuzzleClient.php b/lib/Fetcher/Client/LegacyGuzzleClient.php
new file mode 100644
index 000000000..8e41221c9
--- /dev/null
+++ b/lib/Fetcher/Client/LegacyGuzzleClient.php
@@ -0,0 +1,64 @@
+<?php
+/**
+ * Nextcloud - News
+ *
+ * This file is licensed under the Affero General Public License version 3 or
+ * later. See the COPYING file.
+ *
+ * @author    Sean Molenaar <smillernl@me.com>
+ * @copyright 2018 Sean Molenaar
+ */
+
+namespace OCA\News\Fetcher\Client;
+
+use FeedIo\Adapter\ClientInterface as FeedIoClientInterface;
+use FeedIo\Adapter\NotFoundException;
+use FeedIo\Adapter\ServerErrorException;
+use Guzzle\Service\ClientInterface;
+use GuzzleHttp\Exception\BadResponseException;
+
+/**
+ * Guzzle dependent HTTP client
+ */
+class LegacyGuzzleClient implements FeedIoClientInterface
+{
+    /**
+     * @var ClientInterface
+     */
+    protected $guzzleClient;
+
+    /**
+     * @param ClientInterface $guzzleClient
+     */
+    public function __construct(ClientInterface $guzzleClient)
+    {
+        $this->guzzleClient = $guzzleClient;
+    }
+
+    /**
+     * @param  string                               $url
+     * @param  \DateTime                            $modifiedSince
+     * @throws \FeedIo\Adapter\NotFoundException
+     * @throws \FeedIo\Adapter\ServerErrorException
+     * @return \FeedIo\Adapter\ResponseInterface
+     */
+    public function getResponse($url, \DateTime $modifiedSince)
+    {
+        try {
+            $options = [
+                'headers' => [
+                    'If-Modified-Since' => $modifiedSince->format(\DateTime::RFC2822)
+                ]
+            ];
+
+            return new LegacyGuzzleResponse($this->guzzleClient->get($url, $options));
+        } catch (BadResponseException $e) {
+            switch ((int) $e->getResponse()->getStatusCode()) {
+                case 404:
+                    throw new NotFoundException($e->getMessage());
+                default:
+                    throw new ServerErrorException($e->getMessage());
+            }
+        }
+    }
+}
diff --git a/lib/Fetcher/Client/LegacyGuzzleResponse.php b/lib/Fetcher/Client/LegacyGuzzleResponse.php
new file mode 100644
index 000000000..1f3b2ddf1
--- /dev/null
+++ b/lib/Fetcher/Client/LegacyGuzzleResponse.php
@@ -0,0 +1,86 @@
+<?php
+/**
+ * Nextcloud - News
+ *
+ * This file is licensed under the Affero General Public License version 3 or
+ * later. See the COPYING file.
+ *
+ * @author    Sean Molenaar <smillernl@me.com>
+ * @copyright 2018 Sean Molenaar
+ */
+
+namespace OCA\News\Fetcher\Client;
+
+use FeedIo\Adapter\ResponseInterface;
+use GuzzleHttp\Message\ResponseInterface as GuzzleResponseInterface;
+
+/**
+ * Guzzle dependent HTTP Response
+ */
+class LegacyGuzzleResponse implements ResponseInterface
+{
+    const HTTP_LAST_MODIFIED = 'Last-Modified';
+
+    /**
+     * @var \GuzzleHttp\Message\ResponseInterface
+     */
+    protected $response;
+
+    /**
+     * @param \GuzzleHttp\Message\ResponseInterface
+     */
+    public function __construct(GuzzleResponseInterface $psrResponse)
+    {
+        $this->response = $psrResponse;
+    }
+
+    /**
+     * @return boolean
+     */
+    public function isModified()
+    {
+        return $this->response->getStatusCode() !== 304 && $this->response->getBody()->getSize() > 0;
+    }
+
+    /**
+     * @return \Psr\Http\Message\StreamInterface
+     */
+    public function getBody()
+    {
+        return $this->response->getBody();
+    }
+
+    /**
+     * @return \DateTime|null
+     */
+    public function getLastModified()
+    {
+        if ($this->response->hasHeader(static::HTTP_LAST_MODIFIED)) {
+            $lastModified = \DateTime::createFromFormat(
+                \DateTime::RFC2822,
+                $this->getHeader(static::HTTP_LAST_MODIFIED)
+            );
+
+            return false === $lastModified ? null : $lastModified;
+        }
+
+        return;
+    }
+
+    /**
+     * @return array
+     */
+    public function getHeaders()
+    {
+        return $this->response->getHeaders();
+    }
+
+    /**
+     * @param  string       $name
+     * @return string[]
+     */
+    public function getHeader($name)
+    {
+        return current($this->response->getHeader($name));
+    }
+}
-- 
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