ContentProxy: swap entry url to origin_url and set new url according to graby content

Closes #3529

Signed-off-by: Kevin Decherf <kevin@kdecherf.com>

src/Wallabag/CoreBundle/Helper/ContentProxy.php

@@ -68,9 +68,8 @@ class ContentProxy
 
         // In one case (at least in tests), url is empty here
         // so we set it using $url provided in the updateEntry call.
-        // Not sure what are the other possible cases where this property is empty 
+        // Not sure what are the other possible cases where this property is empty
-        if (empty($entry->getUrl()) && !empty($url))
+        if (empty($entry->getUrl()) && !empty($url)) {
-        {
             $entry->setUrl($url);
         }
 
@@ -247,7 +246,15 @@ class ContentProxy
      */
     private function stockEntry(Entry $entry, array $content)
     {
-        $entry->setUrl($content['url']);
+        // When a redirection occurs while fetching an entry
+        // we move the original url in origin_url property if empty
+        // and set the entry url with the final value
+        if (!empty($content['url']) && $entry->getUrl() !== $content['url']) {
+            if (empty($entry->getOriginUrl())) {
+                $entry->setOriginUrl($entry->getUrl());
+            }
+            $entry->setUrl($content['url']);
+        }
 
         $this->setEntryDomainName($entry);
 

tests/Wallabag/CoreBundle/Helper/ContentProxyTest.php

@@ -775,6 +775,32 @@ class ContentProxyTest extends TestCase
         return $string;
     }
 
+    public function testWithChangedUrl()
+    {
+        $tagger = $this->getTaggerMock();
+        $tagger->expects($this->once())
+            ->method('tag');
+
+        $proxy = new ContentProxy((new Graby()), $tagger, $this->getValidator(), $this->getLogger(), $this->fetchingErrorMessage, true);
+        $entry = new Entry(new User());
+        $proxy->updateEntry(
+            $entry,
+            'http://0.0.0.0',
+            [
+                'html' => false,
+                'title' => '',
+                'url' => 'http://1.1.1.1',
+                'content_type' => '',
+                'language' => '',
+            ],
+            true
+        );
+
+        $this->assertSame('http://1.1.1.1', $entry->getUrl());
+        $this->assertSame('1.1.1.1', $entry->getDomainName());
+        $this->assertSame('http://0.0.0.0', $entry->getOriginUrl());
+    }
+
     private function getTaggerMock()
     {
         return $this->getMockBuilder(RuleBasedTagger::class)