Update index.html

Add support for providing the redirect URL in the URL fragment segment
HTTPSRedirector · Jun 14, 2024 · 82136b9 · 82136b9
1 parent ef73c5e
commit 82136b9
Showing 1 changed file with 39 additions and 1 deletion.
diff --git a/index.html b/index.html
@@ -46,6 +46,40 @@ <h2>HTTPS Redirector</h2>
             return str.replace(/"/g, '%22').replace(/>/g, '%3c').replace(/</g, '%3e').replace(/\n/g, '%0a').replace(/\r/g, '%0d');
         }
 
+        function getFragmentParameters() {
+            // Parse the URL fragment like the URL query segment
+            var fragment = window.location.hash.substring(1);
+            var params = {};
+            var paramPairs = fragment.split('&');
+            paramPairs.forEach(function(pair) {
+                var keyValue = pair.split('=');
+                var key = decodeURIComponent(keyValue[0]);
+                var value = decodeURIComponent(keyValue[1] || '');
+                params[key] = value;
+            });
+            return params;
+        }
+
+        function getFragmentParam(key, defaultVal=null) {
+            var params = getFragmentParameters();
+            var paramVal = params[key];
+            if ((paramVal == null || paramVal == '') && defaultVal != null) {
+                return defaultVal;
+            }
+            return paramVal;
+        }
+
+        function getFragmentParamWithAnyKey(keys, defaultVal=null) {
+            var paramVal = null;
+            for (var k of keys) {
+                paramVal = getFragmentParam(k);
+                if (paramVal) {
+                    break;
+                }
+            }
+            return paramVal ? paramVal : defaultVal;
+        }
+
         function getUrlParam(key, defaultVal=null) {
             var queryString = window.location.search;
             var urlParams = new URLSearchParams(queryString);
@@ -90,7 +124,11 @@ <h2>HTTPS Redirector</h2>
         function getRedirectUrl() {
             var redirectUrl = document.getElementById('redirect-url').value;
             if (!redirectUrl) {
-                redirectUrl = getUrlParamWithAnyKey(['redirectUrl', 'redirect', 'url', 'uri', 'r', 'u',], null);
+                var paramKeys = ['redirectUrl', 'redirect', 'url', 'uri', 'r', 'u',];
+                redirectUrl = getUrlParamWithAnyKey(paramKeys, null);
+                if (!redirectUrl) {
+                    redirectUrl = getFragmentParamWithAnyKey(paramKeys, null);
+                }
             }
             redirectUrl = fixRedirectUrl(redirectUrl);
             return redirectUrl;