1 files changed, 36 insertions, 0 deletions
diff --git a/controllers/archive.php b/controllers/archive.php
index a54387b..dc72045 100644
--- a/controllers/archive.php
+++ b/controllers/archive.php
@@ -8,3 +8,39 @@ function on_get() {
     }
     catch(Exception $e) {}
 }
+
+function applyCorrectProtocol($url, $protocol) : string {
+    if (str_contains($url, $protocol)) {
+        return $url;
+    }
+    return $protocol . $url;
+}
+
+function doesWebsiteExist($url) : bool {
+    // Check if the site exists with https
+    $https_url = applyCorrectProtocol($url, "https://");
+    if ($https_url != $url) {
+        $url_headers = @get_headers($https_url);
+        if ($url_headers && $url_headers[0] != 'HTTP/1.1 404 Not Found') {
+            return true;
+        }
+    }
+
+    // Check if the site exists with http
+    $http_url = applyCorrectProtocol($url, "http://");
+    if ($http_url != $url) {
+        $url_headers = @get_headers($http_url);
+        if ($url_headers && $url_headers[0] != 'HTTP/1.1 404 Not Found') {
+            return true;
+        }
+    }
+
+    // Check if the site exists as is
+    // Will take effect when the user has entered the https/http protocol with the site
+    $url_headers = @get_headers($url);
+    if ($url_headers && $url_headers[0] != 'HTTP/1.1 404 Not Found') {
+        return true;
+    }
+
+    return false;
+}