shorten key before adding to message

Author: simonLeary42

resources/lib/utils.php

@@ -95,3 +95,18 @@ function str2int(string $x, ...$args): int
         throw new ValueError("not digits: $x");
     }
 }
+
+/* example with 3 leading chars and 3 trailing chars: "foobarbaz" -> "foo...baz" */
+function shortenString(
+    string $x,
+    int $leading_chars,
+    int $trailing_chars,
+    string $ellipsis = "...",
+): string {
+    if ($leading_chars + strlen($ellipsis) + $trailing_chars > strlen($x)) {
+        return $x;
+    }
+    return substr($x, 0, $leading_chars) .
+        $ellipsis .
+        substr($x, -1 * $trailing_chars, $trailing_chars);
+}

webroot/panel/account.php

@@ -42,17 +42,18 @@
             }
             $keys = array_map("trim", $keys);
             foreach ($keys as $key) {
+                $keyShort = shortenString($key, 10, 10);
                 try {
                     $keyWasAdded = $USER->addSSHKey($key, $OPERATOR);
                 } catch (NoKeyLoadedException) {
-                    UnityHTTPD::messageError("SSH Key Not Added: Invalid", $key);
+                    UnityHTTPD::messageError("SSH Key Not Added: Invalid", $keyShort);
                     UnityHTTPD::redirect();
                 }
                 if ($keyWasAdded) {
-                    UnityHTTPD::messageSuccess("SSH Key Added", $key);
+                    UnityHTTPD::messageSuccess("SSH Key Added", $keyShort);
                     UnityHTTPD::redirect();
                 } else {
-                    UnityHTTPD::messageInfo("SSH Key Not Added: Already Exists", $key);
+                    UnityHTTPD::messageInfo("SSH Key Not Added: Already Exists", $keyShort);
                     UnityHTTPD::redirect();
                 }
             }