frontend: handle UTF-8 characters in GraphViz graphs

xddxdd · Jun 30, 2024 · f0f072c · f0f072c
1 parent 6575658
commit f0f072c
Showing 1 changed file with 12 additions and 1 deletion.
diff --git a/frontend/assets/templates/bgpmap.tpl b/frontend/assets/templates/bgpmap.tpl
@@ -5,8 +5,19 @@
 <script src="/static/jsdelivr/npm/[email protected]/viz.min.js" crossorigin="anonymous"></script>
 <script src="/static/jsdelivr/npm/[email protected]/lite.render.js" crossorigin="anonymous"></script>
 <script>
+  function decodeBase64(base64) {
+    const text = atob(base64);
+    const length = text.length;
+    const bytes = new Uint8Array(length);
+    for (let i = 0; i < length; i++) {
+        bytes[i] = text.charCodeAt(i);
+    }
+    const decoder = new TextDecoder();
+    return decoder.decode(bytes);
+  }
+
   var viz = new Viz();
-  viz.renderSVGElement(atob({{ .Result }}))
+  viz.renderSVGElement(decodeBase64({{ .Result }}))
   .then(element => {
     document.getElementById("bgpmap").appendChild(element);
   })