Empty title guid or first words (#6240)

* settings

* add comments for better understanding

* Update reading.phtml

* overhaul the code

* i18n

* typo

* add a constant to configure the amount of chars

* fix

* simplify

* Update Entry.php

* clean

* Update Entry.php

* Update app/Models/Entry.php

Co-authored-by: Alexandre Alapetite <alexandre@alapetite.fr>

* Update constants.php

* Update app/Models/Entry.php

---------

Co-authored-by: Alexandre Alapetite <alexandre@alapetite.fr>

1 files changed, 21 insertions, 1 deletions

diff --git a/app/Models/Entry.php b/app/Models/Entry.php
index 3caa1ddb9..956134c78 100644
--- a/app/Models/Entry.php
+++ b/app/Models/Entry.php
@@ -117,7 +117,27 @@ class FreshRSS_Entry extends Minz_Model {
 		return $this->guid;
 	}
 	public function title(): string {
-		return $this->title == '' ? $this->guid() : $this->title;
+		$title = '';
+
+		if ($this->title === '') {
+			// used while fetching the article from feed and store it in the database
+			$title = $this->guid();
+		} else {
+			// used while fetching from the database
+			if ($this->title !== $this->guid) {
+				$title = $this->title;
+			} else {
+				$content = trim(strip_tags($this->content(false)));
+				$title = trim(mb_substr($content, 0, MAX_CHARS_EMPTY_FEED_TITLE, 'UTF-8'));
+
+				if ($title === '') {
+					$title = $this->guid();
+				} elseif (strlen($content) > strlen($title)) {
+					$title .= '…';
+				}
+			}
+		}
+		return $title;
 	}
 	/** @deprecated */
 	public function author(): string {