Refactor updateOriginUrl to include new behaviors behaviors

- Leave origin_url unchanged if difference is an ending slash
- Leave origin_url unchanged if difference is scheme
- Ignore (noop) if difference is query string or fragment

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

src/Wallabag/CoreBundle/Helper/ContentProxy.php

@@ -246,15 +246,7 @@ class ContentProxy
      */
     private function stockEntry(Entry $entry, array $content)
     {
-        // When a redirection occurs while fetching an entry
+        $this->updateOriginUrl($entry, $content['url']);
-        // we move the original url in origin_url property if empty
-        // and set the entry url with the final value
-        if (!empty($content['url']) && $entry->getUrl() !== $content['url']) {
-            if (empty($entry->getOriginUrl())) {
-                $entry->setOriginUrl($entry->getUrl());
-            }
-            $entry->setUrl($content['url']);
-        }
 
         $this->setEntryDomainName($entry);
 
@@ -320,6 +312,50 @@ class ContentProxy
         }
     }
 
+    /**
+     * Update the origin_url field when a redirection occurs
+     * This field is set if it is empty and new url does not match ignore list.
+     *
+     * @param Entry  $entry
+     * @param string $url
+     */
+    private function updateOriginUrl(Entry $entry, $url)
+    {
+        if (!empty($url) && $entry->getUrl() !== $url) {
+            $parsed_entry_url = parse_url($entry->getUrl());
+            $parsed_content_url = parse_url($url);
+
+            $diff_ec = array_diff_assoc($parsed_entry_url, $parsed_content_url);
+            $diff_ce = array_diff_assoc($parsed_content_url, $parsed_entry_url);
+
+            $diff = array_merge($diff_ec, $diff_ce);
+            $diff_keys = array_keys($diff);
+            sort($diff_keys);
+
+            switch ($diff_keys) {
+                case ['path']:
+                    if (($parsed_entry_url['path'] . '/' === $parsed_content_url['path']) // diff is trailing slash, we only replace the url of the entry
+                        || ($url === urldecode($entry->getUrl()))) { // we update entry url if new url is a decoded version of it, see EntryRepository#findByUrlAndUserId
+                        $entry->setUrl($url);
+                    }
+                    break;
+                case ['scheme']:
+                    $entry->setUrl($url);
+                    break;
+                case ['fragment']:
+                case ['query']:
+                    // noop
+                    break;
+                default:
+                    if (empty($entry->getOriginUrl())) {
+                        $entry->setOriginUrl($entry->getUrl());
+                    }
+                    $entry->setUrl($url);
+                    break;
+            }
+        }
+    }
+
     /**
      * Validate that the given content has at least a title, an html and a url.
      *

tests/Wallabag/CoreBundle/Helper/ContentProxyTest.php

@@ -739,6 +739,101 @@ class ContentProxyTest extends TestCase
         $this->assertSame($expectedTitle, $this->strToHex($entry->getTitle()));
     }
 
+    /**
+     * Data provider for testWithChangedUrl.
+     *
+     * Arrays contain the following values:
+     * $entry_url
+     * $origin_url
+     * $content_url
+     * $expected_entry_url
+     * $expected_origin_url
+     * $expected_domain
+     */
+    public function dataForChangedUrl()
+    {
+        return [
+            'normal' => [
+                'http://0.0.0.0',
+                null,
+                'http://1.1.1.1',
+                'http://1.1.1.1',
+                'http://0.0.0.0',
+                '1.1.1.1',
+            ],
+            'origin already set' => [
+                'http://0.0.0.0',
+                'http://hello',
+                'http://1.1.1.1',
+                'http://1.1.1.1',
+                'http://hello',
+                '1.1.1.1',
+            ],
+            'trailing slash' => [
+                'https://example.com/hello-world',
+                null,
+                'https://example.com/hello-world/',
+                'https://example.com/hello-world/',
+                null,
+                'example.com',
+            ],
+            'no query string in fetched content' => [
+                'https://example.org/hello?world=1',
+                null,
+                'https://example.org/hello',
+                'https://example.org/hello?world=1',
+                null,
+                'example.org',
+            ],
+            'query string in fetched content' => [
+                'https://example.org/hello',
+                null,
+                'https://example.org/hello?world=1',
+                'https://example.org/hello',
+                null,
+                'example.org',
+            ],
+            'fragment in fetched content' => [
+                'https://example.org/hello',
+                null,
+                'https://example.org/hello#world',
+                'https://example.org/hello',
+                null,
+                'example.org',
+            ],
+        ];
+    }
+
+    /**
+     * @dataProvider dataForChangedUrl
+     */
+    public function testWithChangedUrl($entry_url, $origin_url, $content_url, $expected_entry_url, $expected_origin_url, $expected_domain)
+    {
+        $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());
+        $entry->setOriginUrl($origin_url);
+        $proxy->updateEntry(
+            $entry,
+            $entry_url,
+            [
+                'html' => false,
+                'title' => '',
+                'url' => $content_url,
+                'content_type' => '',
+                'language' => '',
+            ],
+            true
+        );
+
+        $this->assertSame($expected_entry_url, $entry->getUrl());
+        $this->assertSame($expected_domain, $entry->getDomainName());
+        $this->assertSame($expected_origin_url, $entry->getOriginUrl());
+    }
+
     /**
      * https://stackoverflow.com/a/18506801.
      *
@@ -775,32 +870,6 @@ 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)