Check available compression types of curl

CHANGELOG.md

@@ -7,6 +7,7 @@ The format is mostly based on [Keep a Changelog](https://keepachangelog.com/en/1
 ### Changed
 - Drop support for Nextcloud 25, Supported: 26, 27 (#2316)
 - Add a new command for occ `./occ news:updater:job` allows to check and reset the update job (#2166)
+- Check for available http(s) compression options and use them (gzip, deflate, brotli) (#2328)
 ### Fixed
 
 # Releases

lib/Config/FetcherConfig.php

@@ -94,6 +94,29 @@ public function __construct(IConfig $config)
         return $this;
     }
 
+    /**
+     * Checks for available encoding options
+     *
+     * @return String list of supported encoding types
+     */
+    public function checkEncoding()
+    {
+        $supportedEncoding = [];
+
+        // check curl features
+        $curl_features = curl_version()["features"];
+
+        $bitfields = array('CURL_VERSION_LIBZ' => ['gzip', 'deflate'], 'CURL_VERSION_BROTLI' => ['br']);
+
+        foreach ($bitfields as $feature => $header) {
+            // checking available features via the 'features' bitmask and adding available types to the list
+            if (defined($feature) && $curl_features & constant($feature)) {
+                $supportedEncoding = array_merge($supportedEncoding, $header);
+            }
+        }
+        return implode(", ", $supportedEncoding);
+    }
+
     /**
      * Configure a guzzle client
      *
@@ -106,7 +129,7 @@ public function getClient(): ClientInterface
             'headers' =>  [
                 'User-Agent' => static::DEFAULT_USER_AGENT,
                 'Accept' => static::DEFAULT_ACCEPT,
-                'Accept-Encoding' => 'gzip, deflate',
+                'Accept-Encoding' => $this->checkEncoding()
             ],
         ];
 

lib/Fetcher/FeedFetcher.php

@@ -26,6 +26,7 @@
 use Net_URL2;
 use OCP\IL10N;
 use OCP\ITempManager;
+use OCP\IConfig;
 
 use OCA\News\Db\Item;
 use OCA\News\Db\Feed;
@@ -73,14 +74,20 @@ class FeedFetcher implements IFeedFetcher
      */
     private $logger;
 
+    /**
+     * @var IConfig
+     */
+    private $iConfig;
+
     public function __construct(
         FeedIo $fetcher,
         Favicon $favicon,
         Scraper $scraper,
         IL10N $l10n,
         ITempManager $ITempManager,
         Time $time,
-        LoggerInterface $logger
+        LoggerInterface $logger,
+        IConfig $iConfig
     ) {
         $this->reader         = $fetcher;
         $this->faviconFactory = $favicon;
@@ -89,6 +96,7 @@ public function __construct(
         $this->ITempManager   = $ITempManager;
         $this->time           = $time;
         $this->logger         = $logger;
+        $this->iConfig        = $iConfig;
     }
 
 
@@ -401,6 +409,7 @@ protected function getFavicon(FeedInterface $feed, string $url): ?string
         try {
             // Base_uri can only be set on creation, will be used when link is relative.
             $client = new Client(['base_uri' => $base_url]);
+            $fetcherConfig = new FetcherConfig($this->iConfig);
             $response = $client->request(
                 'GET',
                 $favicon,
@@ -409,7 +418,8 @@ protected function getFavicon(FeedInterface $feed, string $url): ?string
                     'headers' => [
                         'User-Agent'        => FetcherConfig::DEFAULT_USER_AGENT,
                         'Accept'            => 'image/*',
-                        'If-Modified-Since' => date(DateTime::RFC7231, $last_modified)
+                        'If-Modified-Since' => date(DateTime::RFC7231, $last_modified),
+                        'Accept-Encoding'   => $fetcherConfig->checkEncoding()
                     ]
                 ]
             );

tests/Unit/Fetcher/FeedFetcherTest.php

@@ -33,6 +33,7 @@
 use OCA\News\Utility\Time;
 use OCP\IL10N;
 use OCP\ITempManager;
+use OCP\IConfig;
 use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
 use Psr\Log\LoggerInterface;
@@ -108,9 +109,9 @@ class FeedFetcherTest extends TestCase
     private $scraper;
 
     /**
-     * @var MockObject|Client
+     * @var MockObject|iConfig
      */
-    private $client;
+    private $iConfig;
 
     //metadata
     /**
@@ -194,7 +195,7 @@ protected function setUp(): void
         $this->scraper = $this->getMockBuilder(Scraper::class)
             ->disableOriginalConstructor()
             ->getMock();
-        $this->client = $this->getMockBuilder(Client::class)
+        $this->iConfig = $this->getMockBuilder(IConfig::class)
             ->disableOriginalConstructor()
             ->getMock();
         $this->fetcher = new FeedFetcher(
@@ -205,7 +206,7 @@ protected function setUp(): void
             $this->ITempManager,
             $timeFactory,
             $this->logger,
-            $this->client
+            $this->iConfig
         );
         $this->url = 'http://tests/';