prevent RCEs with crafted video files urls

* clicking on the speed dial will open download dialog

* refactor: prevent multiple slashes

Dockerfile

@@ -24,11 +24,12 @@ COPY --from=ui /usr/src/yt-dlp-webui/frontend /usr/src/yt-dlp-webui/frontend
 RUN CGO_ENABLED=0 GOOS=linux go build -o yt-dlp-webui
 # -----------------------------------------------------------------------------
 
-# dependencies ----------------------------------------------------------------
-FROM alpine:edge
+# Runtime ---------------------------------------------------------------------
+FROM python:3.13.2-alpine3.21
 
 RUN apk update && \
-apk add ffmpeg yt-dlp ca-certificates curl wget psmisc
+apk add ffmpeg ca-certificates curl wget gnutls --no-cache && \
+pip install "yt-dlp[default,curl-cffi,mutagen,pycryptodomex,phantomjs,secretstorage]"
 
 VOLUME /downloads /config
 

README.md

@@ -28,7 +28,7 @@ docker pull ghcr.io/marcopiovanello/yt-dlp-web-ui:latest
 ## Community stuff
 Feel free to join :)
 
-[![Discord Banner](https://api.weblutions.com/discord/invite/3Sj9ZZHv/)](https://discord.gg/WRnVWr4y)
+[Discord](https://discord.gg/GZAX5FfGzE)
 
 ## Some screeshots
 ![image](https://github.com/user-attachments/assets/fc43a3fb-ecf9-449d-b5cb-5d5635020c00)

frontend/src/atoms/settings.ts

@@ -121,14 +121,18 @@ export const appTitleState = atomWithStorage(
 export const serverAddressAndPortState = atom((get) => {
   if (get(servedFromReverseProxySubDirState)) {
     return `${get(serverAddressState)}/${get(servedFromReverseProxySubDirState)}/`
-      .replaceAll('"', '') // TODO: atomWithStorage put extra double quotes on strings
+      .replaceAll('"', '')    // XXX: atomWithStorage uses JSON.stringify to serialize
+      .replaceAll('//', '/')  // which puts extra double quotes.
   }
   if (get(servedFromReverseProxyState)) {
     return `${get(serverAddressState)}`
       .replaceAll('"', '')
   }
-  return `${get(serverAddressState)}:${get(serverPortState)}`
+
+  const sap = `${get(serverAddressState)}:${get(serverPortState)}`
     .replaceAll('"', '')
+
+  return sap.endsWith('/') ? sap.slice(0, -1) : sap
 })
 
 export const serverURL = atom((get) =>
@@ -137,12 +141,16 @@ export const serverURL = atom((get) =>
 
 export const rpcWebSocketEndpoint = atom((get) => {
   const proto = window.location.protocol === 'https:' ? 'wss:' : 'ws:'
-  return `${proto}//${get(serverAddressAndPortState)}/rpc/ws`
+  const sap = get(serverAddressAndPortState)
+
+  return `${proto}//${sap.endsWith('/') ? sap.slice(0, -1) : sap}/rpc/ws`
 })
 
 export const rpcHTTPEndpoint = atom((get) => {
   const proto = window.location.protocol
-  return `${proto}//${get(serverAddressAndPortState)}/rpc/http`
+  const sap = get(serverAddressAndPortState)
+
+  return `${proto}//${sap.endsWith('/') ? sap.slice(0, -1) : sap}/rpc/http`
 })
 
 export const serverSideCookiesState = atom<Promise<string>>(async (get) => await pipe(

frontend/src/components/HomeSpeedDial.tsx

@@ -32,6 +32,7 @@ const HomeSpeedDial: React.FC<Props> = ({ onDownloadOpen, onEditorOpen }) => {
       ariaLabel="Home speed dial"
       sx={{ position: 'absolute', bottom: 64, right: 24 }}
       icon={<SpeedDialIcon />}
+      onClick={onDownloadOpen}
     >
       <SpeedDialAction
         icon={listView ? <ViewAgendaIcon /> : <FormatListBulleted />}

frontend/src/lib/httpClient.ts

@@ -1,6 +1,9 @@
 import { tryCatch } from 'fp-ts/TaskEither'
+import * as J from 'fp-ts/Json'
+import * as E from 'fp-ts/Either'
+import { pipe } from 'fp-ts/lib/function'
 
-async function fetcher<T>(url: string, opt?: RequestInit): Promise<T> {
+async function fetcher(url: string, opt?: RequestInit, controller?: AbortController): Promise<string> {
   const jwt = localStorage.getItem('token')
 
   if (opt && !opt.headers) {
@@ -14,17 +17,27 @@ async function fetcher<T>(url: string, opt?: RequestInit): Promise<T> {
     headers: {
       ...opt?.headers,
       'X-Authentication': jwt ?? ''
-    }
+    },
+    signal: controller?.signal
   })
 
   if (!res.ok) {
     throw await res.text()
   }
 
-  return res.json() as T
+
+
+  return res.text()
 }
 
-export const ffetch = <T>(url: string, opt?: RequestInit) => tryCatch(
-  () => fetcher<T>(url, opt),
+export const ffetch = <T>(url: string, opt?: RequestInit, controller?: AbortController) => tryCatch(
+  async () => pipe(
+    await fetcher(url, opt, controller),
+    J.parse,
+    E.match(
+      (l) => l as T,
+      (r) => r as T
+    )
+  ),
   (e) => `error while fetching: ${e}`
 )

server/internal/process.go

@@ -93,6 +93,7 @@ func (p *Process) Start() {
 
 	baseParams := []string{
 		strings.Split(p.Url, "?list")[0], //no playlist
+		"--no-exec",
 		"--newline",
 		"--no-colors",
 		"--no-playlist",