From 50ba6bbe07b0bb86eb07e3212ba2e22cb2878cf2 Mon Sep 17 00:00:00 2001
From: ORelio <ORelio@users.noreply.github.com>
Date: Mon, 30 Aug 2021 10:58:06 +0200
Subject: UI: Add optional thumbnail and summary on feed items (#3805)

* UI: Add optional thumbnail and summary on feed items

Implements #561

* UI: Thumbnail: Own column, Custom size, Lazy load

* UI: Thumbnail: Remove unnecessary CSS rule

Remove rule already defined in base theme, no override needed

* CSS lint + RTL

* Improve thumbail and summary generation

* Support img alt

* Missing htmlspecialchars

Co-authored-by: Alexandre Alapetite <alexandre@alapetite.fr>
---
 app/Models/Entry.php | 36 +++++++++++++++++++++++++++++++++---
 1 file changed, 33 insertions(+), 3 deletions(-)

(limited to 'app/Models/Entry.php')

diff --git a/app/Models/Entry.php b/app/Models/Entry.php
index 9057cecf8..66e554e22 100644
--- a/app/Models/Entry.php
+++ b/app/Models/Entry.php
@@ -59,13 +59,19 @@ class FreshRSS_Entry extends Minz_Model {
 	public function content() {
 		return $this->content;
 	}
-	public function enclosures() {
+
+	public function enclosures($searchBodyImages = false) {
 		$results = [];
 		try {
-			if (strpos($this->content, '<p class="enclosure-content') !== false) {
+			$searchEnclosures = strpos($this->content, '<p class="enclosure-content') !== false;
+			$searchBodyImages &= (stripos($this->content, '<img') !== false);
+			$xpath = null;
+			if ($searchEnclosures || $searchBodyImages) {
 				$dom = new DOMDocument();
-				$dom->loadHTML($this->content, LIBXML_NONET | LIBXML_NOERROR | LIBXML_NOWARNING);
+				$dom->loadHTML('<?xml version="1.0" encoding="UTF-8" ?>' . $this->content, LIBXML_NONET | LIBXML_NOERROR | LIBXML_NOWARNING);
 				$xpath = new DOMXpath($dom);
+			}
+			if ($searchEnclosures) {
 				$enclosures = $xpath->query('//div[@class="enclosure"]/p[@class="enclosure-content"]/*[@src]');
 				foreach ($enclosures as $enclosure) {
 					$results[] = [
@@ -75,12 +81,36 @@ class FreshRSS_Entry extends Minz_Model {
 					];
 				}
 			}
+			if ($searchBodyImages) {
+				$images = $xpath->query('//img');
+				foreach ($images as $img) {
+					$src = $img->getAttribute('src');
+					if ($src == null) {
+						$src = $img->getAttribute('data-src');
+					}
+					if ($src != null) {
+						$results[] = [
+							'url' => $src,
+							'alt' => $img->getAttribute('alt'),
+						];
+					}
+				}
+			}
 			return $results;
 		} catch (Exception $ex) {
 			return $results;
 		}
 	}
 
+	public function thumbnail() {
+		foreach ($this->enclosures(true) as $enclosure) {
+			if (!empty($enclosure['url']) && empty($enclosure['type'])) {
+				return $enclosure;
+			}
+		}
+		return null;
+	}
+
 	public function link() {
 		return $this->link;
 	}
-- 
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