futur.blue
objective categorical abstract machine language personal data server
Add manual passkey login trigger button
+68
-62
frontend/src/templates/LoginPage.mlx
+68
-62
frontend/src/templates/LoginPage.mlx
···
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let passkeyError, setPasskeyError = useState (fun () -> None) in
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let passkeyLoading, setPasskeyLoading = useState (fun () -> false) in
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let currentOptions = useRef (None : Js.Json.t option) in
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let%browser_only triggerPasskeyAutofill () =
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WebAuthn.browserSupportsWebAuthnAutofill ()
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|> Js.Promise.then_ (fun supported ->
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if supported then begin
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Fetch.fetch "/account/passkeys/login/options"
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|> Js.Promise.then_ (fun response ->
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if Fetch.Response.ok response then Fetch.Response.json response
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else Js.Exn.raiseError "Failed to get options" )
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|> Js.Promise.then_ (fun options ->
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currentOptions.current <- Some options ;
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WebAuthn.startAuthentication
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{optionsJSON= options; useBrowserAutofill= true} )
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|> Js.Promise.then_ (fun credential ->
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setPasskeyLoading (fun _ -> true) ;
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let challenge =
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match currentOptions.current with
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| Some opts ->
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Js.Dict.unsafeGet (Obj.magic opts) "challenge"
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| None ->
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Js.Json.string ""
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in
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let body =
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Js.Json.object_
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(Js.Dict.fromArray
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[| ( "response"
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, Js.Json.string (Js.Json.stringify credential) )
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; ("challenge", challenge) |] )
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in
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Fetch.fetchWithInit
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( "/account/passkeys/login/verify?redirect_url="
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^ Js.Global.encodeURIComponent redirect_url )
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(Fetch.RequestInit.make ~method_:Post
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~body:(Fetch.BodyInit.make (Js.Json.stringify body))
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~headers:
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(Fetch.HeadersInit.makeWithArray
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[|("Content-Type", "application/json")|] )
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() ) )
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|> Js.Promise.then_ (fun response ->
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setPasskeyLoading (fun _ -> false) ;
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if Fetch.Response.ok response then
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Fetch.Response.json response
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|> Js.Promise.then_ (fun json ->
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let redirect =
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Js.Dict.unsafeGet (Obj.magic json) "redirect"
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|> Js.Json.decodeString
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|> Option.value ~default:"/account"
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in
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Webapi.Dom.(Window.setLocation window redirect) ;
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Js.Promise.resolve () )
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else begin
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setPasskeyError (fun _ -> Some "Passkey authentication failed") ;
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Js.Promise.resolve ()
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end )
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|> Js.Promise.catch (fun _ ->
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(* user cancelled or error *)
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Js.Promise.resolve () )
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end
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else Js.Promise.resolve () )
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in
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let _ =
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React.useEffect0 (fun () ->
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(* only start passkey autofill if not in 2FA step *)
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if not two_fa_required then
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let _ =
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WebAuthn.browserSupportsWebAuthnAutofill ()
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|> Js.Promise.then_ (fun supported ->
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if supported then begin
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Fetch.fetch "/account/passkeys/login/options"
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|> Js.Promise.then_ (fun response ->
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if Fetch.Response.ok response then
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Fetch.Response.json response
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else Js.Exn.raiseError "Failed to get options" )
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|> Js.Promise.then_ (fun options ->
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currentOptions.current <- Some options ;
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WebAuthn.startAuthentication
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{optionsJSON= options; useBrowserAutofill= true} )
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|> Js.Promise.then_ (fun credential ->
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setPasskeyLoading (fun _ -> true) ;
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let challenge =
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match currentOptions.current with
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| Some opts ->
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Js.Dict.unsafeGet (Obj.magic opts) "challenge"
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| None ->
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Js.Json.string ""
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in
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let body =
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Js.Json.object_
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(Js.Dict.fromArray
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[| ( "response"
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, Js.Json.string (Js.Json.stringify credential)
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)
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; ("challenge", challenge) |] )
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in
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Fetch.fetchWithInit
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( "/account/passkeys/login/verify?redirect_url="
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^ Js.Global.encodeURIComponent redirect_url )
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(Fetch.RequestInit.make ~method_:Post
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~body:(Fetch.BodyInit.make (Js.Json.stringify body))
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~headers:
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(Fetch.HeadersInit.makeWithArray
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[|("Content-Type", "application/json")|] )
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() ) )
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|> Js.Promise.then_ (fun response ->
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setPasskeyLoading (fun _ -> false) ;
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if Fetch.Response.ok response then
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Fetch.Response.json response
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|> Js.Promise.then_ (fun json ->
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let redirect =
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Js.Dict.unsafeGet (Obj.magic json) "redirect"
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|> Js.Json.decodeString
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|> Option.value ~default:"/account"
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in
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Webapi.Dom.(Window.setLocation window redirect) ;
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Js.Promise.resolve () )
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else begin
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setPasskeyError (fun _ ->
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Some "Passkey authentication failed" ) ;
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Js.Promise.resolve ()
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end )
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|> Js.Promise.catch (fun _ ->
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(* user cancelled or error *)
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Js.Promise.resolve () )
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end
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else Js.Promise.resolve () )
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in
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let _ = triggerPasskeyAutofill () in
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None
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else None )
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in
···
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null )
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<Button type_="submit" formMethod="post" className="mt-2">
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(string (if passkeyLoading then "signing in..." else "sign in"))
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</Button>
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<Button
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kind=`Tertiary
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className="text-sm"
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onClick=(fun _ ->
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let _ = triggerPasskeyAutofill () in
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() )>
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(string "sign in with passkey")
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</Button>
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</form>
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<span className="text-sm text-mist-100">