From 1ebace1417563a74967e0c45fb3998a26770eb47 Mon Sep 17 00:00:00 2001
From: rdalverny <rdalverny@gmail.com>
Date: Sat, 22 Jan 2022 21:41:44 +0100
Subject: Prune cached HTML when changing feeds list

---
 app/classes/Cache.php          | 15 +++++++++++++++
 public/admin/subscriptions.php |  6 ++++++
 2 files changed, 21 insertions(+)

diff --git a/app/classes/Cache.php b/app/classes/Cache.php
index 474c560..6a5b7e7 100644
--- a/app/classes/Cache.php
+++ b/app/classes/Cache.php
@@ -115,6 +115,21 @@ class Cache
 
         return false;
     }
+
+    public static function prune(string $group, ?string $id = null) : void
+    {
+        if (is_null($id)) {
+            $filenames = glob(self::$store . self::$prefix . "{$group}_*");
+        } else {
+            $filenames = [self::getFilename($group, $id)];
+        }
+
+        foreach ($filenames as $filename) {
+            if (is_file($filename)) {
+                unlink($filename);
+            }
+        }
+    }
         
     /**
     * Builds a filename/path from group, id and
diff --git a/public/admin/subscriptions.php b/public/admin/subscriptions.php
index 418e354..236ac46 100755
--- a/public/admin/subscriptions.php
+++ b/public/admin/subscriptions.php
@@ -22,6 +22,9 @@ if (isset($_POST['upload']) &&
     $newOpml = new Opml();
     $newOpml->parse(file_get_contents($_FILES['opml']['tmp_name']));
     OpmlManager::save($newOpml, $opmlFile);
+
+    Cache::setStore($PlanetConfig->getCacheDir() . '/');
+    Cache::prune("html");
 } elseif (isset($_POST['opml']) || isset($_POST['add'])) {
     // Load old OPML
     $oldOpml = OpmlManager::load($opmlFile);
@@ -79,6 +82,9 @@ if (isset($_POST['upload']) &&
 
     // Save new OPML
     OpmlManager::save($newOpml, $opmlFile);
+
+    Cache::setStore($PlanetConfig->getCacheDir() . '/');
+    Cache::prune("html");
 }
 header("Location: index.php");
 die();
-- 
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