fix: prevent double totp submissions

frontend/bun.lock

@@ -19,7 +19,6 @@
         "i18next": "^26.0.3",
         "i18next-browser-languagedetector": "^8.2.1",
         "i18next-resources-to-backend": "^1.2.1",
-        "input-otp": "^1.4.2",
         "lucide-react": "^1.7.0",
         "next-themes": "^0.4.6",
         "radix-ui": "^1.4.3",
@@ -623,8 +622,6 @@
 
     "inline-style-parser": ["inline-style-parser@0.2.4", "", {}, "sha512-0aO8FkhNZlj/ZIbNi7Lxxr12obT7cL1moPfE4tg1LkX7LlLfC6DeX4l2ZEud1ukP9jNQyNnfzQVqwbwmAATY4Q=="],
 
-    "input-otp": ["input-otp@1.4.2", "", { "peerDependencies": { "react": "^16.8 || ^17.0 || ^18.0 || ^19.0.0 || ^19.0.0-rc", "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0.0 || ^19.0.0-rc" } }, "sha512-l3jWwYNvrEa6NTCt7BECfCm48GvwuZzkoeG3gBL2w4CHeOXW3eKFmf9UNYkNfYc3mxMrthMnxjIE07MT0zLBQA=="],
-
     "is-alphabetical": ["is-alphabetical@2.0.1", "", {}, "sha512-FWyyY60MeTNyeSRpkM2Iry0G9hpr7/9kD40mD/cGQEuilcZYS4okz8SN2Q6rLCJ8gbCt6fN+rC+6tMGS99LaxQ=="],
 
     "is-alphanumerical": ["is-alphanumerical@2.0.1", "", { "dependencies": { "is-alphabetical": "^2.0.0", "is-decimal": "^2.0.0" } }, "sha512-hmbYhX/9MUMF5uh7tOXyK/n0ZvWpad5caBA17GsC6vyuCqaWliRG5K1qS9inmUhEMaOBIW7/whAnSwveW/LtZw=="],

frontend/package.json

@@ -25,7 +25,6 @@
     "i18next": "^26.0.3",
     "i18next-browser-languagedetector": "^8.2.1",
     "i18next-resources-to-backend": "^1.2.1",
-    "input-otp": "^1.4.2",
     "lucide-react": "^1.7.0",
     "next-themes": "^0.4.6",
     "radix-ui": "^1.4.3",

frontend/src/components/auth/totp-form.tsx

@@ -1,14 +1,10 @@
 import { Form, FormControl, FormField, FormItem } from "../ui/form";
-import {
-  InputOTP,
-  InputOTPGroup,
-  InputOTPSeparator,
-  InputOTPSlot,
-} from "../ui/input-otp";
+import { Input } from "../ui/input";
 import { zodResolver } from "@hookform/resolvers/zod";
 import { useForm } from "react-hook-form";
 import { totpSchema, TotpSchema } from "@/schemas/totp-schema";
 import { useTranslation } from "react-i18next";
+import { useRef } from "react";
 import z from "zod";
 
 interface Props {
@@ -19,6 +15,7 @@ interface Props {
 export const TotpForm = (props: Props) => {
   const { formId, onSubmit } = props;
   const { t } = useTranslation();
+  const autoSubmittedRef = useRef(false);
 
   z.config({
     customError: (iss) =>
@@ -29,14 +26,19 @@ export const TotpForm = (props: Props) => {
     resolver: zodResolver(totpSchema),
   });
 
-  const handleChange = (value: string) => {
-    form.setValue("code", value, { shouldDirty: true, shouldValidate: true });
-
-    if (value.length === 6) {
-      onSubmit({ code: value });
+  const handleChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const value = e.target.value.replace(/\D/g, "").slice(0, 6);
+    form.setValue("code", value, { shouldDirty: true, shouldValidate: false });
+    if (value.length === 6 && !autoSubmittedRef.current) {
+      autoSubmittedRef.current = true;
+      form.handleSubmit(onSubmit)();
+      return;
     }
+    autoSubmittedRef.current = false;
   };
 
+  // Note: This is not the best UX, ideally we would want https://github.com/guilhermerodz/input-otp
+  // but some password managers cannot autofill the inputs (see #92) so, simple input it is
   return (
     <Form {...form}>
       <form id={formId} onSubmit={form.handleSubmit(onSubmit)}>
@@ -46,25 +48,17 @@ export const TotpForm = (props: Props) => {
           render={({ field }) => (
             <FormItem>
               <FormControl>
-                <InputOTP
-                  maxLength={6}
+                <Input
                   {...field}
+                  type="text"
+                  inputMode="numeric"
                   autoComplete="one-time-code"
                   autoFocus
+                  maxLength={6}
+                  placeholder="XXXXXX"
                   onChange={handleChange}
-                >
-                  <InputOTPGroup>
-                    <InputOTPSlot index={0} />
-                    <InputOTPSlot index={1} />
-                    <InputOTPSlot index={2} />
-                  </InputOTPGroup>
-                  <InputOTPSeparator />
-                  <InputOTPGroup>
-                    <InputOTPSlot index={3} />
-                    <InputOTPSlot index={4} />
-                    <InputOTPSlot index={5} />
-                  </InputOTPGroup>
-                </InputOTP>
+                  className="text-center"
+                />
               </FormControl>
             </FormItem>
           )}

frontend/src/components/ui/input-otp.tsx

@@ -1,75 +0,0 @@
-import * as React from "react";
-import { OTPInput, OTPInputContext } from "input-otp";
-import { MinusIcon } from "lucide-react";
-
-import { cn } from "@/lib/utils";
-
-function InputOTP({
-  className,
-  containerClassName,
-  ...props
-}: React.ComponentProps<typeof OTPInput> & {
-  containerClassName?: string;
-}) {
-  return (
-    <OTPInput
-      data-slot="input-otp"
-      containerClassName={cn(
-        "flex items-center gap-2 has-disabled:opacity-50",
-        containerClassName,
-      )}
-      className={cn("disabled:cursor-not-allowed", className)}
-      {...props}
-    />
-  );
-}
-
-function InputOTPGroup({ className, ...props }: React.ComponentProps<"div">) {
-  return (
-    <div
-      data-slot="input-otp-group"
-      className={cn("flex items-center", className)}
-      {...props}
-    />
-  );
-}
-
-function InputOTPSlot({
-  index,
-  className,
-  ...props
-}: React.ComponentProps<"div"> & {
-  index: number;
-}) {
-  const inputOTPContext = React.useContext(OTPInputContext);
-  const { char, hasFakeCaret, isActive } = inputOTPContext?.slots[index] ?? {};
-
-  return (
-    <div
-      data-slot="input-otp-slot"
-      data-active={isActive}
-      className={cn(
-        "data-[active=true]:border-ring data-[active=true]:ring-ring/50 data-[active=true]:aria-invalid:ring-destructive/20 dark:data-[active=true]:aria-invalid:ring-destructive/40 aria-invalid:border-destructive data-[active=true]:aria-invalid:border-destructive dark:bg-input/30 border-input relative flex h-9 w-9 items-center justify-center border-y border-r text-sm shadow-xs transition-all outline-none first:rounded-l-md first:border-l last:rounded-r-md data-[active=true]:z-10 data-[active=true]:ring-[3px]",
-        className,
-      )}
-      {...props}
-    >
-      {char}
-      {hasFakeCaret && (
-        <div className="pointer-events-none absolute inset-0 flex items-center justify-center">
-          <div className="animate-caret-blink bg-foreground h-4 w-px duration-1000" />
-        </div>
-      )}
-    </div>
-  );
-}
-
-function InputOTPSeparator({ ...props }: React.ComponentProps<"div">) {
-  return (
-    <div data-slot="input-otp-separator" role="separator" {...props}>
-      <MinusIcon />
-    </div>
-  );
-}
-
-export { InputOTP, InputOTPGroup, InputOTPSlot, InputOTPSeparator };

frontend/src/pages/totp-page.tsx

@@ -74,7 +74,7 @@ export const TotpPage = () => {
         <CardTitle className="text-xl">{t("totpTitle")}</CardTitle>
         <CardDescription>{t("totpSubtitle")}</CardDescription>
       </CardHeader>
-      <CardContent className="flex flex-col items-center">
+      <CardContent>
         <TotpForm
           formId={formId}
           onSubmit={(values) => totpMutation.mutate(values)}