Merge pull request #3965 from nicofrand/previewPic

Preview picture: use the 1st pic retrieved if no og:image set

4 files changed, 123 insertions, 14 deletions

diff --git a/src/Wallabag/CoreBundle/Helper/ContentProxy.php b/src/Wallabag/CoreBundle/Helper/ContentProxy.php
index bc257ffb..ca01dec8 100644
--- a/src/Wallabag/CoreBundle/Helper/ContentProxy.php
+++ b/src/Wallabag/CoreBundle/Helper/ContentProxy.php
@@ -12,8 +12,8 @@ use Wallabag\CoreBundle\Entity\Entry;
 use Wallabag\CoreBundle\Tools\Utils;
 
 /**
- * This kind of proxy class take care of getting the content from an url
- * and update the entry with what it found.
+ * This kind of proxy class takes care of getting the content from an url
+ * and updates the entry with what it found.
  */
 class ContentProxy
 {
@@ -289,13 +289,25 @@ class ContentProxy
             $this->updateLanguage($entry, $content['language']);
         }
 
+        $previewPictureUrl = '';
         if (!empty($content['open_graph']['og_image'])) {
-            $this->updatePreviewPicture($entry, $content['open_graph']['og_image']);
+            $previewPictureUrl = $content['open_graph']['og_image'];
         }
 
         // if content is an image, define it as a preview too
         if (!empty($content['content_type']) && \in_array($this->mimeGuesser->guess($content['content_type']), ['jpeg', 'jpg', 'gif', 'png'], true)) {
-            $this->updatePreviewPicture($entry, $content['url']);
+            $previewPictureUrl = $content['url'];
+        } elseif (empty($previewPictureUrl)) {
+            $this->logger->debug('Extracting images from content to provide a default preview picture');
+            $imagesUrls = DownloadImages::extractImagesUrlsFromHtml($content['html']);
+            $this->logger->debug(\count($imagesUrls) . ' pictures found');
+            if (!empty($imagesUrls)) {
+                $previewPictureUrl = $imagesUrls[0];
+            }
+        }
+
+        if (!empty($previewPictureUrl)) {
+            $this->updatePreviewPicture($entry, $previewPictureUrl);
         }
 
         if (!empty($content['content_type'])) {
diff --git a/src/Wallabag/CoreBundle/Helper/DownloadImages.php b/src/Wallabag/CoreBundle/Helper/DownloadImages.php
index 9a7e9828..c1645e45 100644
--- a/src/Wallabag/CoreBundle/Helper/DownloadImages.php
+++ b/src/Wallabag/CoreBundle/Helper/DownloadImages.php
@@ -31,23 +31,36 @@ class DownloadImages
     }
 
     /**
-     * Process the html and extract image from it, save them to local and return the updated html.
+     * Process the html and extract images URLs from it.
      *
-     * @param int    $entryId ID of the entry
      * @param string $html
-     * @param string $url     Used as a base path for relative image and folder
      *
-     * @return string
+     * @return string[]
      */
-    public function processHtml($entryId, $html, $url)
+    public static function extractImagesUrlsFromHtml($html)
     {
         $crawler = new Crawler($html);
         $imagesCrawler = $crawler
             ->filterXpath('//img');
         $imagesUrls = $imagesCrawler
             ->extract(['src']);
-        $imagesSrcsetUrls = $this->getSrcsetUrls($imagesCrawler);
-        $imagesUrls = array_unique(array_merge($imagesUrls, $imagesSrcsetUrls));
+        $imagesSrcsetUrls = self::getSrcsetUrls($imagesCrawler);
+
+        return array_unique(array_merge($imagesUrls, $imagesSrcsetUrls));
+    }
+
+    /**
+     * Process the html and extract image from it, save them to local and return the updated html.
+     *
+     * @param int    $entryId ID of the entry
+     * @param string $html
+     * @param string $url     Used as a base path for relative image and folder
+     *
+     * @return string
+     */
+    public function processHtml($entryId, $html, $url)
+    {
+        $imagesUrls = self::extractImagesUrlsFromHtml($html);
 
         $relativePath = $this->getRelativePath($entryId);
 
@@ -199,7 +212,7 @@ class DownloadImages
      *
      * @return array An array of urls
      */
-    private function getSrcsetUrls(Crawler $imagesCrawler)
+    private static function getSrcsetUrls(Crawler $imagesCrawler)
     {
         $urls = [];
         $iterator = $imagesCrawler
diff --git a/tests/Wallabag/CoreBundle/Helper/ContentProxyTest.php b/tests/Wallabag/CoreBundle/Helper/ContentProxyTest.php
index 508adb1b..c7caac1d 100644
--- a/tests/Wallabag/CoreBundle/Helper/ContentProxyTest.php
+++ b/tests/Wallabag/CoreBundle/Helper/ContentProxyTest.php
@@ -214,6 +214,90 @@ class ContentProxyTest extends TestCase
         $this->assertSame('1.1.1.1', $entry->getDomainName());
     }
 
+    public function testWithContentAndContentImage()
+    {
+        $tagger = $this->getTaggerMock();
+        $tagger->expects($this->once())
+            ->method('tag');
+
+        $graby = $this->getMockBuilder('Graby\Graby')
+            ->setMethods(['fetchContent'])
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $graby->expects($this->any())
+            ->method('fetchContent')
+            ->willReturn([
+                'html' => "<h1>Test</h1><p><img src='http://3.3.3.3/cover.jpg'/></p>",
+                'title' => 'this is my title',
+                'url' => 'http://1.1.1.1',
+                'content_type' => 'text/html',
+                'language' => 'fr',
+                'status' => '200',
+                'open_graph' => [
+                    'og_title' => 'my OG title',
+                    'og_description' => 'OG desc',
+                    'og_image' => null,
+                ],
+            ]);
+
+        $proxy = new ContentProxy($graby, $tagger, $this->getValidator(), $this->getLogger(), $this->fetchingErrorMessage);
+        $entry = new Entry(new User());
+        $proxy->updateEntry($entry, 'http://0.0.0.0');
+
+        $this->assertSame('http://1.1.1.1', $entry->getUrl());
+        $this->assertSame('this is my title', $entry->getTitle());
+        $this->assertSame("<h1>Test</h1><p><img src='http://3.3.3.3/cover.jpg'/></p>", $entry->getContent());
+        $this->assertSame('http://3.3.3.3/cover.jpg', $entry->getPreviewPicture());
+        $this->assertSame('text/html', $entry->getMimetype());
+        $this->assertSame('fr', $entry->getLanguage());
+        $this->assertSame('200', $entry->getHttpStatus());
+        $this->assertSame(0.0, $entry->getReadingTime());
+        $this->assertSame('1.1.1.1', $entry->getDomainName());
+    }
+
+    public function testWithContentImageAndOgImage()
+    {
+        $tagger = $this->getTaggerMock();
+        $tagger->expects($this->once())
+            ->method('tag');
+
+        $graby = $this->getMockBuilder('Graby\Graby')
+            ->setMethods(['fetchContent'])
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $graby->expects($this->any())
+            ->method('fetchContent')
+            ->willReturn([
+                'html' => "<h1>Test</h1><p><img src='http://3.3.3.3/nevermind.jpg'/></p>",
+                'title' => 'this is my title',
+                'url' => 'http://1.1.1.1',
+                'content_type' => 'text/html',
+                'language' => 'fr',
+                'status' => '200',
+                'open_graph' => [
+                    'og_title' => 'my OG title',
+                    'og_description' => 'OG desc',
+                    'og_image' => 'http://3.3.3.3/cover.jpg',
+                ],
+            ]);
+
+        $proxy = new ContentProxy($graby, $tagger, $this->getValidator(), $this->getLogger(), $this->fetchingErrorMessage);
+        $entry = new Entry(new User());
+        $proxy->updateEntry($entry, 'http://0.0.0.0');
+
+        $this->assertSame('http://1.1.1.1', $entry->getUrl());
+        $this->assertSame('this is my title', $entry->getTitle());
+        $this->assertSame("<h1>Test</h1><p><img src='http://3.3.3.3/nevermind.jpg'/></p>", $entry->getContent());
+        $this->assertSame('http://3.3.3.3/cover.jpg', $entry->getPreviewPicture());
+        $this->assertSame('text/html', $entry->getMimetype());
+        $this->assertSame('fr', $entry->getLanguage());
+        $this->assertSame('200', $entry->getHttpStatus());
+        $this->assertSame(0.0, $entry->getReadingTime());
+        $this->assertSame('1.1.1.1', $entry->getDomainName());
+    }
+
     public function testWithContentAndBadLanguage()
     {
         $tagger = $this->getTaggerMock();
@@ -415,7 +499,7 @@ class ContentProxyTest extends TestCase
 
         $records = $handler->getRecords();
 
-        $this->assertCount(1, $records);
+        $this->assertCount(3, $records);
         $this->assertContains('Error while defining date', $records[0]['message']);
     }
 
diff --git a/tests/Wallabag/ImportBundle/Controller/WallabagV1ControllerTest.php b/tests/Wallabag/ImportBundle/Controller/WallabagV1ControllerTest.php
index 1f57939d..2a8e7c89 100644
--- a/tests/Wallabag/ImportBundle/Controller/WallabagV1ControllerTest.php
+++ b/tests/Wallabag/ImportBundle/Controller/WallabagV1ControllerTest.php
@@ -121,7 +121,7 @@ class WallabagV1ControllerTest extends WallabagCoreTestCase
 
         $this->assertInstanceOf('Wallabag\CoreBundle\Entity\Entry', $content);
         $this->assertEmpty($content->getMimetype(), 'Mimetype for http://www.framablog.org is empty');
-        $this->assertEmpty($content->getPreviewPicture(), 'Preview picture for http://www.framablog.org is empty');
+        $this->assertSame($content->getPreviewPicture(), 'http://www.framablog.org/public/_img/framablog/wallaby_baby.jpg');
         $this->assertEmpty($content->getLanguage(), 'Language for http://www.framablog.org is empty');
 
         $tags = $content->getTags();