Use offline sites.json if API is down

.github/workflows/fetch-sites.yml

@@ -0,0 +1,32 @@
+name: Fetch JSON from API
+
+on:
+  schedule:
+    - cron: "0 * * * *" # Runs every 24 hours (adjust UTC if needed)
+  workflow_dispatch: # Allows manual triggering
+
+jobs:
+  update-json:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Fetch JSON
+        run: |
+          curl -sS https://smc-api.lodine.xyz/sites -o data/sites.json || echo "API is down, using last known copy"
+
+      - name: Check for changes
+        id: check_changes
+        run: |
+          git diff --quiet || echo "CHANGED=true" >> $GITHUB_ENV
+
+      - name: Commit and push if changed
+        if: env.CHANGED == 'true'
+        run: |
+          git config --global user.name "github-actions[bot]"
+          git config --global user.email "github-actions[bot]@users.noreply.github.com"
+          git add data/sites.json
+          git commit -m "Update sites.json (Automated)"
+          git push

background.js

@@ -1,6 +1,8 @@
 // StopMalwareContent's Source Code for Firefox extension
 // Inspired from https://github.com/StopModReposts/Extension
 const API_URL = "https://smc-api.lodine.xyz/sites";
+const OFFLINE_COPY_URL = "data/sites.json";
+
 let cachedSites = [];
 let ignoreList = [];
 let lastBlockedSite = {
@@ -15,9 +17,23 @@ refreshCache();
 
 function refreshCache() {
   fetch(API_URL)
-    .then((response) => response.json())
     .then((response) => {
-      cachedSites = response;
+      if (!response.ok) throw new Error("API unreachable");
+      return response.json();
+    })
+    .then((data) => {
+      cachedSites = data;
+    })
+    .catch(() => {
+      console.warn("Using offline copy due to API failure");
+      return fetch(OFFLINE_COPY_URL)
+        .then((response) => response.json())
+        .then((data) => {
+          cachedSites = data;
+        })
+        .catch(() => {
+          console.error("Failed to load offline copy");
+        });
     });
 }
 

data/sites.json

@@ -0,0 +1 @@
+[]

package.json

@@ -1,6 +1,6 @@
 {
   "name": "smc-extension",
-  "version": "1.4.1",
+  "version": "1.4.2",
   "description": "Restricts access to harmful or unwanted web resources.",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"