From 06d34f9b8ed81854baaaea3a4a7f4e247cab31a0 Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Mon, 24 Nov 2025 22:01:46 +0100
Subject: OPML export/import of unicity criteria (#8243)

Found during https://github.com/FreshRSS/FreshRSS/discussions/8242#discussioncomment-15052838
---
 app/Services/ImportService.php      | 9 +++++++++
 app/views/helpers/export/opml.phtml | 8 ++++++++
 2 files changed, 17 insertions(+)

(limited to 'app')

diff --git a/app/Services/ImportService.php b/app/Services/ImportService.php
index 26d07faae..22865f873 100644
--- a/app/Services/ImportService.php
+++ b/app/Services/ImportService.php
@@ -186,6 +186,15 @@ class FreshRSS_Import_Service {
 				default => FreshRSS_Feed::PRIORITY_MAIN_STREAM,
 			});
 
+			if (isset($feed_elt['frss:unicityCriteria']) && $feed_elt['frss:unicityCriteria'] !== 'id'
+				&& preg_match('/^[a-z:_-]{2,64}$/', $feed_elt['frss:unicityCriteria'])) {
+				$feed->_attribute('unicityCriteria', $feed_elt['frss:unicityCriteria']);
+			}
+
+			if (filter_var($feed_elt['frss:unicityCriteriaForced'] ?? '', FILTER_VALIDATE_BOOLEAN)) {
+				$feed->_attribute('unicityCriteriaForced', true);
+			}
+
 			if (isset($feed_elt['frss:cssFullContent'])) {
 				$feed->_pathEntries(Minz_Helper::htmlspecialchars_utf8($feed_elt['frss:cssFullContent']));
 			}
diff --git a/app/views/helpers/export/opml.phtml b/app/views/helpers/export/opml.phtml
index de044332e..feeb409a5 100644
--- a/app/views/helpers/export/opml.phtml
+++ b/app/views/helpers/export/opml.phtml
@@ -47,6 +47,14 @@ function feedsToOutlines(array $feeds, bool $excludeMutedFeeds = false): array {
 			default => null,
 		};
 
+		if ($feed->attributeString('unicityCriteria') != '' && $feed->attributeString('unicityCriteria') !== 'id') {
+			$outline['frss:unicityCriteria'] = $feed->attributeString('unicityCriteria');
+		}
+
+		if ($feed->attributeBoolean('unicityCriteriaForced')) {
+			$outline['frss:unicityCriteriaForced'] = 'true';
+		}
+
 		if ($feed->kind() === FreshRSS_Feed::KIND_HTML_XPATH || $feed->kind() === FreshRSS_Feed::KIND_XML_XPATH) {
 			/** @var array<string,string> */
 			$xPathSettings = $feed->attributeArray('xpath') ?? [];
-- 
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