User Input (#119)

Port the User Input feature from the previous version of the app. This
is currently being used to verify a few different prompts for ssh.

frontend/app/element/modal.less

@@ -6,7 +6,7 @@
     top: 0;
     left: 0;
     width: 100vw;
-    height: 100vh;
+    height: 100%;
     z-index: 100;
     background-color: rgba(21, 23, 21, 0.7);
 
@@ -15,8 +15,7 @@
         flex-direction: column;
         border-radius: 10px;
         padding: 0;
-        width: 80vw;
-        height: 80vh;
+        width: 80%;
         margin-top: 25vh;
         margin-left: auto;
         margin-right: auto;

frontend/app/element/modal.tsx

@@ -70,7 +70,7 @@ interface WaveModalProps {
 
 function WaveModal({ title, description, onSubmit, onCancel, buttonLabel = "Ok", children }: WaveModalProps) {
     return (
-        <Modal id="text-box-modal" onClickOut={onCancel}>
+        <Modal onClickOut={onCancel}>
             <ModalHeader title={title} description={description} />
             <ModalContent>{children}</ModalContent>
             <ModalFooter>

frontend/app/element/userinputmodal.less

@@ -0,0 +1,37 @@
+// Copyright 2024, Command Line Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+.userinput-body {
+    display: flex;
+    flex-direction: column;
+    justify-content: space-between;
+    gap: 1rem;
+
+    font: var(--fixed-font);
+    color: var(--main-text-color);
+
+    .userinput-markdown {
+        color: var(--main-text-color);
+    }
+
+    .userinput-text {
+    }
+
+    .userinput-inputbox {
+        resize: none;
+        background-color: var(--panel-bg-color);
+        border-radius: 6px;
+        margin: 0;
+        border: var(--border-color);
+        padding: 5px 0 5px 16px;
+        min-height: 30px;
+
+        &:hover {
+            cursor: text;
+        }
+
+        &:focus {
+            outline-color: var(--accent-color);
+        }
+    }
+}

frontend/app/element/userinputmodal.tsx

@@ -0,0 +1,133 @@
+// Copyright 2024, Command Line Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+import { Markdown } from "@/element/markdown";
+import { WaveModal } from "@/element/modal";
+import { atoms } from "@/store/global";
+import * as keyutil from "@/util/keyutil";
+import * as jotai from "jotai";
+import * as React from "react";
+import { UserInputService } from "../store/services";
+
+import "./userinputmodal.less";
+
+export const UserInputModal = (userInputRequest: UserInputRequest) => {
+    const setModals = jotai.useSetAtom(atoms.userInput);
+    const [responseText, setResponseText] = React.useState("");
+    const [countdown, setCountdown] = React.useState(Math.floor(userInputRequest.timeoutms / 1000));
+    const checkboxStatus = React.useRef(false);
+
+    const handleSendCancel = React.useCallback(() => {
+        UserInputService.SendUserInputResponse({
+            type: "userinputresp",
+            requestid: userInputRequest.requestid,
+            errormsg: "Canceled by the user",
+        });
+        setModals((prev) => {
+            prev.pop();
+            return [...prev];
+        });
+    }, [responseText, userInputRequest]);
+
+    const handleSendText = React.useCallback(() => {
+        UserInputService.SendUserInputResponse({
+            type: "userinputresp",
+            requestid: userInputRequest.requestid,
+            text: responseText,
+            checkboxstat: checkboxStatus.current,
+        });
+        setModals((prev) => {
+            prev.pop();
+            return [...prev];
+        });
+    }, [responseText, userInputRequest]);
+
+    const handleSendConfirm = React.useCallback(() => {
+        UserInputService.SendUserInputResponse({
+            type: "userinputresp",
+            requestid: userInputRequest.requestid,
+            confirm: true,
+            checkboxstat: checkboxStatus.current,
+        });
+        setModals((prev) => {
+            prev.pop();
+            return [...prev];
+        });
+    }, [userInputRequest]);
+
+    const handleSubmit = React.useCallback(() => {
+        switch (userInputRequest.responsetype) {
+            case "text":
+                handleSendText();
+                break;
+            case "confirm":
+                handleSendConfirm();
+                break;
+        }
+    }, [handleSendConfirm, handleSendText, userInputRequest.responsetype]);
+
+    const handleKeyDown = React.useCallback(
+        (waveEvent: WaveKeyboardEvent): boolean => {
+            if (keyutil.checkKeyPressed(waveEvent, "Escape")) {
+                handleSendCancel();
+                return;
+            }
+            if (keyutil.checkKeyPressed(waveEvent, "Enter")) {
+                handleSubmit();
+                return true;
+            }
+        },
+        [handleSendCancel, handleSubmit]
+    );
+
+    const queryText = React.useMemo(() => {
+        if (userInputRequest.markdown) {
+            return <Markdown text={userInputRequest.querytext} className="userinput-markdown" />;
+        }
+        return <span className="userinput-text">{userInputRequest.querytext}</span>;
+    }, [userInputRequest.markdown, userInputRequest.querytext]);
+
+    const inputBox = React.useMemo(() => {
+        if (userInputRequest.responsetype === "confirm") {
+            return <></>;
+        }
+        return (
+            <input
+                type={userInputRequest.publictext ? "text" : "password"}
+                onChange={(e) => setResponseText(e.target.value)}
+                value={responseText}
+                maxLength={400}
+                className="userinput-inputbox"
+                autoFocus={true}
+                onKeyDown={(e) => keyutil.keydownWrapper(handleKeyDown)(e)}
+            />
+        );
+    }, [userInputRequest.responsetype, userInputRequest.publictext, responseText, handleKeyDown, setResponseText]);
+
+    React.useEffect(() => {
+        let timeout: ReturnType<typeof setTimeout>;
+        if (countdown == 0) {
+            timeout = setTimeout(() => {
+                handleSendCancel();
+            }, 300);
+        } else {
+            timeout = setTimeout(() => {
+                setCountdown(countdown - 1);
+            }, 1000);
+        }
+        return () => clearTimeout(timeout);
+    }, [countdown]);
+
+    return (
+        <WaveModal
+            title={userInputRequest.title + ` (${countdown}s)`}
+            onSubmit={() => handleSubmit()}
+            onCancel={() => handleSendCancel()}
+        >
+            <div className="userinput-body">
+                {queryText}
+                {inputBox}
+            </div>
+        </WaveModal>
+    );
+};

frontend/app/store/global.ts

@@ -81,6 +81,7 @@ const activeTabIdAtom: jotai.Atom<string> = jotai.atom((get) => {
     }
     return windowData.activetabid;
 });
+const userInputAtom = jotai.atom([]) as jotai.PrimitiveAtom<Array<UserInputRequest>>;
 
 const atoms = {
     // initialized in wave.ts (will not be null inside of application)
@@ -93,6 +94,7 @@ const atoms = {
     settingsConfigAtom: settingsConfigAtom,
     tabAtom: tabAtom,
     activeTabId: activeTabIdAtom,
+    userInput: userInputAtom,
 };
 
 // key is "eventType" or "eventType|oref"
@@ -208,6 +210,13 @@ function handleWSEventMessage(msg: WSEventType) {
         console.log("config", data);
         return;
     }
+    if (msg.eventtype == "userinput") {
+        // handle user input
+        const data: UserInputRequest = msg.data;
+        console.log(data);
+        globalStore.set(userInputAtom, (prev) => [...prev, data]);
+        return;
+    }
     if (msg.eventtype == "blockfile") {
         const fileData: WSFileEventData = msg.data;
         const fileSubject = getFileSubject(fileData.zoneid, fileData.filename);

frontend/app/store/services.ts

@@ -126,6 +126,15 @@ class ObjectServiceType {
 
 export const ObjectService = new ObjectServiceType();
 
+// userinputservice.UserInputService (userinput)
+class UserInputServiceType {
+    SendUserInputResponse(arg1: UserInputResponse): Promise<void> {
+        return WOS.callBackendService("userinput", "SendUserInputResponse", Array.from(arguments))
+    }
+}
+
+export const UserInputService = new UserInputServiceType();
+
 // windowservice.WindowService (window)
 class WindowServiceType {
     // @returns object updates

frontend/app/workspace/workspace.tsx

@@ -3,6 +3,7 @@
 
 import { TabBar } from "@/app/tab/tabbar";
 import { TabContent } from "@/app/tab/tabcontent";
+import { UserInputModal } from "@/element/userinputmodal";
 import { atoms, createBlock } from "@/store/global";
 import * as services from "@/store/services";
 import * as util from "@/util/util";
@@ -106,9 +107,11 @@ const Widgets = React.memo(() => {
 const WorkspaceElem = React.memo(() => {
     const windowData = jotai.useAtomValue(atoms.waveWindow);
     const activeTabId = windowData?.activetabid;
+    const modals = jotai.useAtomValue(atoms.userInput);
     const ws = jotai.useAtomValue(atoms.workspace);
     return (
         <div className="workspace">
+            {modals.length > 0 && <UserInputModal {...modals[modals.length - 1]} />}
             <TabBar key={ws.oid} workspace={ws} />
             <div className="workspace-tabcontent">
                 {activeTabId == "" ? (

frontend/types/gotypes.d.ts

@@ -262,6 +262,28 @@ declare global {
         activetabid: string;
     };
 
+    // userinput.UserInputRequest
+    type UserInputRequest = {
+        requestid: string;
+        querytext: string;
+        responsetype: string;
+        title: string;
+        markdown: boolean;
+        timeoutms: number;
+        checkboxmsg: string;
+        publictext: boolean;
+    };
+
+    // userinput.UserInputResponse
+    type UserInputResponse = {
+        type: string;
+        requestid: string;
+        text?: string;
+        confirm?: boolean;
+        errormsg?: string;
+        checkboxstat?: boolean;
+    };
+
     type WSCommandType = {
         wscommand: string;
     } & ( SetBlockTermSizeWSCommand | BlockInputWSCommand | WSRpcCommand );

pkg/eventbus/eventbus.go

@@ -18,6 +18,7 @@ const (
 	WSEvent_WaveObjUpdate         = "waveobj:update"
 	WSEvent_BlockFile             = "blockfile"
 	WSEvent_Config                = "config"
+	WSEvent_UserInput             = "userinput"
 	WSEvent_BlockControllerStatus = "blockcontroller:status"
 	WSEvent_LayoutAction          = "layoutaction"
 	WSEvent_ElectronNewWindow     = "electron:newwindow"

pkg/remote/sshclient.go

@@ -1,4 +1,4 @@
-// Copyright 2023-2024, Command Line Inc.
+// Copyright 2024, Command Line Inc.
 // SPDX-License-Identifier: Apache-2.0
 
 package remote
@@ -19,8 +19,10 @@ import (
 	"strconv"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/kevinburke/ssh_config"
+	"github.com/wavetermdev/thenextwave/pkg/userinput"
 	"github.com/wavetermdev/thenextwave/pkg/wavebase"
 	"golang.org/x/crypto/ssh"
 	"golang.org/x/crypto/ssh/knownhosts"
@@ -115,16 +117,14 @@ func createPublicKeyCallback(connCtx context.Context, sshKeywords *SshKeywords,
 			return createDummySigner()
 		}
 
-		return nil, fmt.Errorf("unimplemented: userinput createPublicKeyCallback") //todo
-		/*
-			request := &userinput.UserInputRequestType{
+		request := &userinput.UserInputRequest{
 			ResponseType: "text",
 			QueryText:    fmt.Sprintf("Enter passphrase for the SSH key: %s", identityFile),
 			Title:        "Publickey Auth + Passphrase",
 		}
 		ctx, cancelFn := context.WithTimeout(connCtx, 60*time.Second)
 		defer cancelFn()
-			response, err := userinput.GetUserInput(ctx, scbus.MainRpcBus, request)
+		response, err := userinput.GetUserInput(ctx, request)
 		if err != nil {
 			// this is an error where we actually do want to stop
 			// trying keys
@@ -136,7 +136,6 @@ func createPublicKeyCallback(connCtx context.Context, sshKeywords *SshKeywords,
 			return createDummySigner()
 		}
 		return []ssh.Signer{signer}, err
-		*/
 	}
 }
 
@@ -151,26 +150,23 @@ func createDefaultPasswordCallbackPrompt(password string) func() (secret string,
 
 func createInteractivePasswordCallbackPrompt(connCtx context.Context, remoteDisplayName string) func() (secret string, err error) {
 	return func() (secret string, err error) {
-		return "", fmt.Errorf("unimplemented: userinput createInteractivePasswordCallbackPrompt") //todo
-		/*
 		ctx, cancelFn := context.WithTimeout(connCtx, 60*time.Second)
 		defer cancelFn()
 		queryText := fmt.Sprintf(
 			"Password Authentication requested from connection  \n"+
 				"%s\n\n"+
 				"Password:", remoteDisplayName)
-			request := &userinput.UserInputRequestType{
+		request := &userinput.UserInputRequest{
 			ResponseType: "text",
 			QueryText:    queryText,
 			Markdown:     true,
 			Title:        "Password Authentication",
 		}
-			response, err := userinput.GetUserInput(ctx, scbus.MainRpcBus, request)
+		response, err := userinput.GetUserInput(ctx, request)
 		if err != nil {
 			return "", err
 		}
 		return response.Text, nil
-		*/
 	}
 }
 
@@ -219,27 +215,24 @@ func createInteractiveKbdInteractiveChallenge(connCtx context.Context, remoteNam
 func promptChallengeQuestion(connCtx context.Context, question string, echo bool, remoteName string) (answer string, err error) {
 	// limited to 15 seconds for some reason. this should be investigated more
 	// in the future
-	return "", fmt.Errorf("unimplemented: userinput promptChallengeQuestion") //todo
-	/*
 	ctx, cancelFn := context.WithTimeout(connCtx, 60*time.Second)
 	defer cancelFn()
 	queryText := fmt.Sprintf(
 		"Keyboard Interactive Authentication requested from connection  \n"+
 			"%s\n\n"+
 			"%s", remoteName, question)
-		request := &userinput.UserInputRequestType{
+	request := &userinput.UserInputRequest{
 		ResponseType: "text",
 		QueryText:    queryText,
 		Markdown:     true,
 		Title:        "Keyboard Interactive Authentication",
 		PublicText:   echo,
 	}
-			response, err := userinput.GetUserInput(ctx, scbus.MainRpcBus, request)
+	response, err := userinput.GetUserInput(ctx, request)
 	if err != nil {
 		return "", err
 	}
 	return response.Text, nil
-	*/
 }
 
 func createCombinedKbdInteractiveChallenge(connCtx context.Context, password string, remoteName string) ssh.KeyboardInteractiveChallenge {
@@ -263,11 +256,10 @@ func openKnownHostsForEdit(knownHostsFilename string) (*os.File, error) {
 	return os.OpenFile(knownHostsFilename, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0644)
 }
 
-/*
-func writeToKnownHosts(knownHostsFile string, newLine string, getUserVerification func() (*userinput.UserInputResponsePacketType, error)) error {
+func writeToKnownHosts(knownHostsFile string, newLine string, getUserVerification func() (*userinput.UserInputResponse, error)) error {
 	if getUserVerification == nil {
-		getUserVerification = func() (*userinput.UserInputResponsePacketType, error) {
-			return &userinput.UserInputResponsePacketType{
+		getUserVerification = func() (*userinput.UserInputResponse, error) {
+			return &userinput.UserInputResponse{
 				Type:    "confirm",
 				Confirm: true,
 			}, nil
@@ -303,10 +295,8 @@ func writeToKnownHosts(knownHostsFile string, newLine string, getUserVerificatio
 	}
 	return f.Close()
 }
-*/
 
-/* todo
-func createUnknownKeyVerifier(knownHostsFile string, hostname string, remote string, key ssh.PublicKey) func() (*userinput.UserInputResponsePacketType, error) {
+func createUnknownKeyVerifier(knownHostsFile string, hostname string, remote string, key ssh.PublicKey) func() (*userinput.UserInputResponse, error) {
 	base64Key := base64.StdEncoding.EncodeToString(key.Marshal())
 	queryText := fmt.Sprintf(
 		"The authenticity of host '%s (%s)' can't be established "+
@@ -316,22 +306,20 @@ func createUnknownKeyVerifier(knownHostsFile string, hostname string, remote str
 			"**Would you like to continue connecting?** If so, the key will be permanently "+
 			"added to the file %s "+
 			"to protect from future man-in-the-middle attacks.", hostname, remote, key.Type(), base64Key, knownHostsFile)
-	request := &userinput.UserInputRequestType{
+	request := &userinput.UserInputRequest{
 		ResponseType: "confirm",
 		QueryText:    queryText,
 		Markdown:     true,
 		Title:        "Known Hosts Key Missing",
 	}
-	return func() (*userinput.UserInputResponsePacketType, error) {
+	return func() (*userinput.UserInputResponse, error) {
 		ctx, cancelFn := context.WithTimeout(context.Background(), 60*time.Second)
 		defer cancelFn()
-		return userinput.GetUserInput(ctx, scbus.MainRpcBus, request)
+		return userinput.GetUserInput(ctx, request)
 	}
 }
-*/
 
-/*
-func createMissingKnownHostsVerifier(knownHostsFile string, hostname string, remote string, key ssh.PublicKey) func() (*userinput.UserInputResponsePacketType, error) {
+func createMissingKnownHostsVerifier(knownHostsFile string, hostname string, remote string, key ssh.PublicKey) func() (*userinput.UserInputResponse, error) {
 	base64Key := base64.StdEncoding.EncodeToString(key.Marshal())
 	queryText := fmt.Sprintf(
 		"The authenticity of host '%s (%s)' can't be established "+
@@ -342,19 +330,18 @@ func createMissingKnownHostsVerifier(knownHostsFile string, hostname string, rem
 			"- %s will be created  \n"+
 			"- the key will be added to %s\n\n"+
 			"This will protect from future man-in-the-middle attacks.", hostname, remote, key.Type(), base64Key, knownHostsFile, knownHostsFile)
-	request := &userinput.UserInputRequestType{
+	request := &userinput.UserInputRequest{
 		ResponseType: "confirm",
 		QueryText:    queryText,
 		Markdown:     true,
 		Title:        "Known Hosts File Missing",
 	}
-	return func() (*userinput.UserInputResponsePacketType, error) {
+	return func() (*userinput.UserInputResponse, error) {
 		ctx, cancelFn := context.WithTimeout(context.Background(), 60*time.Second)
 		defer cancelFn()
-		return userinput.GetUserInput(ctx, scbus.MainRpcBus, request)
+		return userinput.GetUserInput(ctx, request)
 	}
 }
-*/
 
 func lineContainsMatch(line []byte, matches [][]byte) bool {
 	for _, match := range matches {
@@ -444,9 +431,7 @@ func createHostKeyCallback(opts *SSHOpts) (ssh.HostKeyCallback, error) {
 			// the key was not found
 
 			// try to write to a file that could be read
-			//err := fmt.Errorf("placeholder, should not be returned") // a null value here can cause problems with empty slice
-			return fmt.Errorf("unimplemented: waveHostKeyCallback key not found") //todo
-			/*
+			err := fmt.Errorf("placeholder, should not be returned") // a null value here can cause problems with empty slice
 			for _, filename := range knownHostsFiles {
 				newLine := knownhosts.Line([]string{knownhosts.Normalize(hostname)}, key)
 				getUserVerification := createUnknownKeyVerifier(filename, hostname, remote.String(), key)
@@ -478,7 +463,6 @@ func createHostKeyCallback(opts *SSHOpts) (ssh.HostKeyCallback, error) {
 			if err != nil {
 				return fmt.Errorf("unable to create new knownhost key: %e", err)
 			}
-			*/
 		} else {
 			// the key changed
 			correctKeyFingerprint := base64.StdEncoding.EncodeToString(key.Marshal())

pkg/service/service.go

@@ -13,6 +13,7 @@ import (
 	"github.com/wavetermdev/thenextwave/pkg/service/clientservice"
 	"github.com/wavetermdev/thenextwave/pkg/service/fileservice"
 	"github.com/wavetermdev/thenextwave/pkg/service/objectservice"
+	"github.com/wavetermdev/thenextwave/pkg/service/userinputservice"
 	"github.com/wavetermdev/thenextwave/pkg/service/windowservice"
 	"github.com/wavetermdev/thenextwave/pkg/tsgen/tsgenmeta"
 	"github.com/wavetermdev/thenextwave/pkg/util/utilfn"
@@ -27,6 +28,7 @@ var ServiceMap = map[string]any{
 	"file":      &fileservice.FileService{},
 	"client":    &clientservice.ClientService{},
 	"window":    &windowservice.WindowService{},
+	"userinput": &userinputservice.UserInputService{},
 }
 
 var contextRType = reflect.TypeOf((*context.Context)(nil)).Elem()

pkg/service/userinputservice/userinputservice.go

@@ -0,0 +1,18 @@
+// Copyright 2024, Command Line Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+package userinputservice
+
+import (
+	"github.com/wavetermdev/thenextwave/pkg/userinput"
+)
+
+type UserInputService struct {
+}
+
+func (uis *UserInputService) SendUserInputResponse(response *userinput.UserInputResponse) {
+	select {
+	case userinput.MainUserInputHandler.Channels[response.RequestId] <- response:
+	default:
+	}
+}

pkg/shellexec/shellexec.go

@@ -17,6 +17,7 @@ import (
 	"strings"
 	"sync"
 	"syscall"
+	"time"
 
 	"github.com/creack/pty"
 	"github.com/wavetermdev/thenextwave/pkg/remote"
@@ -114,7 +115,7 @@ func checkCwd(cwd string) error {
 var userHostRe = regexp.MustCompile(`^([a-zA-Z0-9][a-zA-Z0-9._@\\-]*@)?([a-z0-9][a-z0-9.-]*)(?::([0-9]+))?$`)
 
 func StartRemoteShellProc(termSize TermSize, cmdStr string, cmdOpts CommandOptsType, remoteName string) (*ShellProc, error) {
-	ctx, cancelFunc := context.WithCancel(context.Background())
+	ctx, cancelFunc := context.WithTimeout(context.Background(), 60*time.Second)
 	defer cancelFunc()
 
 	var shellPath string

pkg/tsgen/tsgen.go

@@ -14,6 +14,7 @@ import (
 	"github.com/wavetermdev/thenextwave/pkg/filestore"
 	"github.com/wavetermdev/thenextwave/pkg/service"
 	"github.com/wavetermdev/thenextwave/pkg/tsgen/tsgenmeta"
+	"github.com/wavetermdev/thenextwave/pkg/userinput"
 	"github.com/wavetermdev/thenextwave/pkg/waveobj"
 	"github.com/wavetermdev/thenextwave/pkg/wconfig"
 	"github.com/wavetermdev/thenextwave/pkg/web/webcmd"
@@ -39,6 +40,7 @@ var ExtraTypes = []any{
 	wconfig.WatcherUpdate{},
 	wshutil.RpcMessage{},
 	wshrpc.WshServerCommandMeta{},
+	userinput.UserInputRequest{},
 }
 
 // add extra type unions to generate here

pkg/userinput/userinput.go

@@ -0,0 +1,92 @@
+// Copyright 2024, Command Line Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+package userinput
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"sync"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/wavetermdev/thenextwave/pkg/eventbus"
+)
+
+var MainUserInputHandler = UserInputHandler{Channels: make(map[string](chan *UserInputResponse), 1)}
+
+type UserInputRequest struct {
+	RequestId    string `json:"requestid"`
+	QueryText    string `json:"querytext"`
+	ResponseType string `json:"responsetype"`
+	Title        string `json:"title"`
+	Markdown     bool   `json:"markdown"`
+	TimeoutMs    int    `json:"timeoutms"`
+	CheckBoxMsg  string `json:"checkboxmsg"`
+	PublicText   bool   `json:"publictext"`
+}
+
+type UserInputResponse struct {
+	Type         string `json:"type"`
+	RequestId    string `json:"requestid"`
+	Text         string `json:"text,omitempty"`
+	Confirm      bool   `json:"confirm,omitempty"`
+	ErrorMsg     string `json:"errormsg,omitempty"`
+	CheckboxStat bool   `json:"checkboxstat,omitempty"`
+}
+
+type UserInputHandler struct {
+	Lock     sync.Mutex
+	Channels map[string](chan *UserInputResponse)
+}
+
+func (ui *UserInputHandler) registerChannel() (string, chan *UserInputResponse) {
+	ui.Lock.Lock()
+	defer ui.Lock.Unlock()
+
+	id := uuid.New().String()
+	uich := make(chan *UserInputResponse, 1)
+
+	ui.Channels[id] = uich
+	return id, uich
+}
+
+func (ui *UserInputHandler) unregisterChannel(id string) {
+	ui.Lock.Lock()
+	defer ui.Lock.Unlock()
+
+	delete(ui.Channels, id)
+}
+
+func (ui *UserInputHandler) sendRequestToFrontend(request *UserInputRequest) {
+	eventbus.SendEvent(eventbus.WSEventType{
+		EventType: eventbus.WSEvent_UserInput,
+		Data:      request,
+	})
+}
+
+func GetUserInput(ctx context.Context, request *UserInputRequest) (*UserInputResponse, error) {
+	id, uiCh := MainUserInputHandler.registerChannel()
+	defer MainUserInputHandler.unregisterChannel(id)
+	request.RequestId = id
+	deadline, _ := ctx.Deadline()
+	request.TimeoutMs = int(time.Until(deadline).Milliseconds()) - 500
+	MainUserInputHandler.sendRequestToFrontend(request)
+
+	var response *UserInputResponse
+	var err error
+	select {
+	case resp := <-uiCh:
+		log.Printf("checking received: %v", resp.RequestId)
+		response = resp
+	case <-ctx.Done():
+		return nil, fmt.Errorf("timed out waiting for user input")
+	}
+
+	if response.ErrorMsg != "" {
+		err = fmt.Errorf(response.ErrorMsg)
+	}
+
+	return response, err
+}

pkg/wconfig/filewatcher.go

@@ -40,13 +40,13 @@ type WatcherUpdate struct {
 
 func readFileContents(filePath string, getDefaults func() SettingsConfigType) (*SettingsConfigType, error) {
 	if getDefaults == nil {
-		log.Printf("oopsie")
+		log.Printf("should not happen")
 		return nil, fmt.Errorf("watcher started without defaults")
 	}
 	content := getDefaults()
 	data, err := os.ReadFile(filePath)
 	if err != nil {
-		log.Printf("doopsie: %v", err)
+		log.Printf("could not read settings file: %v", err)
 		return nil, err
 	}
 	if err := json.Unmarshal(data, &content); err != nil {