Bump version to 1.0.5

Add install-remote.sh, which fetches the latest release and runs its
install.sh so setup no longer needs a git clone. The popup now probes
the native host with a "ping" action on open and, if it's not
registered yet, shows the one-liner (with copy-to-clipboard) instead
of the auto-capture toggle -- so a Web Store install can be completed
end-to-end by clicking the extension icon and pasting one command.

.github/workflows/release.yml

@@ -16,12 +16,24 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Package extension
+        # Chrome requires manifest.json at the zip root, both for Web Store
+        # upload and for manually loading unpacked -- so this one archives
+        # only extension/'s contents, not the whole repo.
         run: |
           cd extension
-          zip -r "../kget-capture-${GITHUB_REF_NAME}.zip" .
+          zip -r "../kget-capture-extension-${GITHUB_REF_NAME}.zip" .
+
+      - name: Package source
+        # Separately, the native-host installer bundle (install.sh,
+        # native-host/, keys/) needs the whole repo. git archive only
+        # includes tracked files, so the gitignored private key (never
+        # committed) can't end up in it.
+        run: git archive --format=zip -o "kget-capture-${GITHUB_REF_NAME}.zip" HEAD
 
       - name: Create release
         uses: softprops/action-gh-release@v2
         with:
-          files: kget-capture-${{ github.ref_name }}.zip
+          files: |
+            kget-capture-${{ github.ref_name }}.zip
+            kget-capture-extension-${{ github.ref_name }}.zip
           generate_release_notes: true

README.md

@@ -1,39 +1,99 @@
 # KGet Capture
 
-A Chrome (and other Chromium-browser) extension that sends downloads to
-[KGet](https://apps.kde.org/kget/), KDE's download manager, instead of (or in
-addition to) the browser's built-in downloader.
+A Chromium browser extension that sends downloads to
+[KGet](https://apps.kde.org/kget/), KDE's download manager, instead of the
+browser's built-in downloader.
 
-- Right-click any link, image, video, or audio element and choose
-  **"Download with KGet"** to open KGet's "New Download" dialog, prefilled
-  with the URL — edit the filename or destination folder if you want, then
-  confirm to start the transfer.
-- A toolbar toggle enables **auto-capture**: while on, every download Chrome
-  starts is cancelled and redirected to the same KGet dialog automatically.
-  Defaults to ON.
+- Right-click a link/image/video/audio and choose **"Download with KGet"**.
+- Or toggle **auto-capture** from the toolbar so every download is handed off
+  automatically, with the correct filename.
+- A desktop notification fires when a capture finishes downloading.
 
 ## Requirements
 
-- Linux with KGet installed (and running, or set to autostart)
-- One of: Google Chrome, Chromium, Brave, Vivaldi, Microsoft Edge
-- `python3` and `dbus-send` on `PATH` (standard on virtually all Linux/KDE
-  systems already)
+- Linux with KGet installed and running (or set to autostart)
+- A Chromium-based browser: Chrome, Chromium, Brave, Vivaldi, or Edge
+- `python3`, `dbus-send`
+- `curl` or `wget`, for the one-line remote installer below (skip if you'd
+  rather download and run `install.sh` yourself)
+- `notify-send`, optional, for the completion notification
+- `kwriteconfig6` (KDE Frameworks), optional, silences KGet's own duplicate
+  notification
+
+Install everything on your distro:
+
+**Fedora**
+```bash
+sudo dnf install kget python3 dbus-tools libnotify kf6-kconfig
+```
+
+**Arch / Manjaro**
+```bash
+sudo pacman -S kget python dbus libnotify kconfig
+```
+
+**Debian / Ubuntu / KDE neon**
+```bash
+sudo apt install kget python3 dbus-bin libnotify-bin kf6-kconfig-bin
+```
+
+**openSUSE**
+```bash
+sudo zypper install kget python3 dbus-1 libnotify-tools kconfig-tools
+```
+
+(`notify-send` and `kwriteconfig6` package names shift around between distro
+versions. If a command above fails, drop that one package and search your
+package manager for the binary name instead. Everything else still works
+without them.)
 
 ## Install
 
+1. Install the extension from the Chrome Web Store: **`<CHROME_WEB_STORE_URL>`**
+   *(placeholder, fill in once the listing is live)*.
+2. Click the extension's toolbar icon. The popup detects that the native
+   messaging host isn't set up yet and shows a one-line command; run it in a
+   terminal, then click "I ran it, check again" in the popup:
+   ```bash
+   curl -fsSL https://raw.githubusercontent.com/andwati/kget-capture/main/install-remote.sh | bash
+   ```
+   (or with `wget`: `wget -qO- https://raw.githubusercontent.com/andwati/kget-capture/main/install-remote.sh | bash`)
+
+   This downloads the latest release and runs its `install.sh`, which
+   registers the native host for every supported browser it finds installed
+   and prints any remaining setup warnings. No git clone required. If you'd
+   rather run it yourself: download and extract `kget-capture-vX.Y.Z.zip`
+   (the source archive, not `kget-capture-extension-vX.Y.Z.zip`) from the
+   [Releases page](https://github.com/andwati/kget-capture/releases), then
+   from inside that folder run `./install.sh` directly.
+3. Open your browser's download settings (`chrome://settings/downloads`,
+   `brave://settings/downloads`, etc.) and turn **off** "Ask where to save
+   each file before downloading". Chrome shows this dialog itself, before the
+   extension gets a chance to intercept the download, so this one-time change
+   is required (no extension API can do it for you).
+
+### Building from source
+
+Contributing, or want to run an unreleased version? Load the extension
+unpacked instead of step 1 above:
+
 ```bash
-git clone <this-repo-url> kget-capture
+git clone https://github.com/andwati/kget-capture.git
 cd kget-capture
 ./install.sh
 ```
 
-`install.sh` registers a native messaging host for every supported browser it
-finds installed, then prints the extension's fixed ID and next steps:
+(Or, for an already-tagged version without cloning: download and extract
+`kget-capture-extension-vX.Y.Z.zip` from the
+[Releases page](https://github.com/andwati/kget-capture/releases) instead.
+It's already just `extension/`'s contents, unpacked at the zip root the way
+Chrome expects. You'll still need `kget-capture-vX.Y.Z.zip` for `install.sh`,
+per step 2 above.)
 
-1. Open `chrome://extensions` (or your browser's equivalent).
-2. Enable **Developer mode** (top-right toggle).
-3. Click **Load unpacked** and select this repo's `extension/` directory.
-4. Confirm the loaded extension's ID matches the one `install.sh` printed.
+Then in `chrome://extensions`: enable **Developer mode**, click **Load
+unpacked**, and select the `extension/` directory (from your clone, or the
+extracted extension zip). `install.sh` prints the extension's fixed ID so
+you can confirm it loaded correctly.
 
 ## Usage
 
@@ -47,45 +107,39 @@ finds installed, then prints the extension's fixed ID and next steps:
 ./uninstall.sh
 ```
 
-This removes the native messaging host registrations and the installed host
-script. You'll still need to remove the unpacked extension yourself via
-`chrome://extensions` — that step can't be scripted.
+Removes the native messaging host registrations and installed host script.
+Remove the extension itself via `chrome://extensions` (or the Chrome Web
+Store listing); that step can't be scripted.
 
 ## Releases
 
-Pushing a tag matching `v*.*.*` (e.g. `v1.0.0`) triggers a GitHub Actions
-workflow ([.github/workflows/release.yml](.github/workflows/release.yml))
-that zips `extension/` and publishes it as a GitHub Release with
-auto-generated release notes. Bump `"version"` in `extension/manifest.json`
-before tagging so the packaged extension's version matches.
-
-```bash
-git tag v1.0.0
-git push origin v1.0.0
-```
+Prebuilt releases are published on the
+[Releases page](https://github.com/andwati/kget-capture/releases); each
+`vX.Y.Z` tag push builds and publishes one automatically.
 
 ## Known limitations
 
-- **`blob:`/`data:` URLs can't be captured.** There's no real network URL to
-  hand to KGet, so these downloads proceed normally through Chrome (a console
-  warning is logged in the extension's service worker).
+- **`blob:`/`data:`/`file:`/`filesystem:` URLs can't be captured.** There's
+  no real network URL to hand to KGet, so these proceed normally through
+  Chrome.
 - **Auto-capture has a brief head start.** Manifest V3 removed blocking
   `webRequest`, so Chrome begins the download before the extension can cancel
   it. A small/partial temp file may transiently appear before it's erased.
-- **A KGet dialog opens for every capture.** The extension uses KGet's
-  `showNewTransferDialog` D-Bus method, which opens the interactive "New
-  Download" dialog rather than starting the transfer immediately. This is
-  intentional — it lets you rename the file or change the destination folder
-  before it starts. If you'd rather it start immediately without a prompt,
-  see [Troubleshooting](#troubleshooting) for the alternate `addTransfer`
-  call — note that route only returns once the dialog is dismissed, so it's
-  not what the extension uses by default.
-- **KGet must already be running.** If it's not, captures fail silently from
-  the user's perspective — check the service worker console for the actual
-  error (see Troubleshooting).
+- **No editable dialog.** Captures start immediately with no chance to
+  rename the file or pick a folder beforehand: KGet only skips its
+  interactive dialog when given a destination path up front, so instant
+  capture and an editable prompt are mutually exclusive.
+- **Chrome may still show its own "Save As" dialog** if you skipped step 3 of
+  Install above.
+- **KGet must already be running.** If it's not, captures fail silently;
+  check the service worker console for the actual error (see
+  Troubleshooting).
 
 ## Troubleshooting
 
+- **`install-remote.sh` fails to look up the latest release?** It queries
+  GitHub's API, which rate-limits unauthenticated requests (60/hour per IP);
+  wait a bit, or fall back to the manual `install.sh` steps in Install above.
 - **Check native host registration:** confirm
   `~/.config/<browser>/NativeMessagingHosts/com.kget_capture.host.json` exists
   and its `path` points at an executable file
@@ -95,16 +149,21 @@ git push origin v1.0.0
 - **Test D-Bus directly:**
   ```bash
   dbus-send --print-reply --dest=org.kde.kget /KGet \
-    org.kde.kget.main.showNewTransferDialog array:string:"https://example.com/file.zip"
-  ```
-  If this fails with `ServiceUnknown`, KGet isn't running. To skip the dialog
-  and start a transfer straight away instead, use `addTransfer` with a real
-  destination folder:
-  ```bash
-  dbus-send --print-reply --dest=org.kde.kget /KGet \
-    org.kde.kget.main.addTransfer string:"https://example.com/file.zip" string:"$HOME/Downloads" boolean:true
+    org.kde.kget.main.addTransfer string:"https://example.com/file.zip" string:"$HOME/Downloads/file.zip" boolean:true
   ```
+  If this fails with `ServiceUnknown`, KGet isn't running.
+- **Download-complete notification not showing?** Confirm `notify-send` is
+  installed (`command -v notify-send`); without it, `kget_capture_host.py`
+  skips the notification entirely rather than erroring. Otherwise, check that
+  the transfer actually reached 100%: `kget_capture_host.py` polls
+  `org.kde.kget.transfer.percent` on the new transfer's D-Bus object path
+  (e.g. `/KGet/Transfers/9`, printed by the `addTransfer` call above) until it
+  hits 100, so a stuck/erroring transfer never fires one. This notification
+  is separate from KGet's own built-in "Download Finished" event.
+  `install.sh` disables that one because KGet only fires it for transfers it
+  observed in a non-finished state at least once, so it silently skips
+  small/fast downloads that complete before that first observation.
 
 ## License
 
-MIT — see [LICENSE](LICENSE).
+MIT, see [LICENSE](LICENSE).

extension/background.js

@@ -11,16 +11,32 @@ async function refreshBadge() {
   updateBadge(autoCaptureEnabled);
 }
 
-function sendToKGet(url) {
-  chrome.runtime.sendNativeMessage(NATIVE_HOST, { action: "addTransfer", url }, (response) => {
-    if (chrome.runtime.lastError) {
-      console.error("[kget-capture] native host error:", chrome.runtime.lastError.message);
-      return;
+// KGet is a network download manager -- it can't "download" a URL that's
+// already local (or embedded in the page), so don't hand it these schemes.
+// file: shows up when saving a page you navigated to directly (Ctrl+S on a
+// file:// URL is still a "download" as far as chrome.downloads is
+// concerned), and KGet's addTransfer rejects it with a confusing
+// "protocol is not supported" dialog if we try.
+const UNSUPPORTED_SCHEMES = ["blob:", "data:", "file:", "filesystem:"];
+
+function isCapturableUrl(url) {
+  return !UNSUPPORTED_SCHEMES.some((scheme) => url.startsWith(scheme));
+}
+
+function sendToKGet(url, filename) {
+  chrome.runtime.sendNativeMessage(
+    NATIVE_HOST,
+    { action: "addTransfer", url, filename: filename || null },
+    (response) => {
+      if (chrome.runtime.lastError) {
+        console.error("[kget-capture] native host error:", chrome.runtime.lastError.message);
+        return;
+      }
+      if (!response || !response.ok) {
+        console.error("[kget-capture] KGet reported failure:", response && response.error);
+      }
     }
-    if (!response || !response.ok) {
-      console.error("[kget-capture] KGet reported failure:", response && response.error);
-    }
-  });
+  );
 }
 
 chrome.runtime.onInstalled.addListener(async (details) => {
@@ -36,20 +52,56 @@ chrome.runtime.onInstalled.addListener(async (details) => {
   refreshBadge();
 });
 
+// Downloads started from the context menu, tracked so captureDownload()
+// still resolves/forwards their real filename even when auto-capture is
+// toggled off -- a right-click "Download with KGet" should always work.
+const pendingContextMenuDownloads = new Set();
+
 chrome.contextMenus.onClicked.addListener((info) => {
   if (info.menuItemId !== MENU_ID) return;
   const url = info.linkUrl || info.srcUrl;
   if (!url) return;
-  sendToKGet(url);
+  if (!isCapturableUrl(url)) {
+    console.warn("[kget-capture] cannot hand a local/embedded URL to KGet:", url);
+    return;
+  }
+  // Route through chrome.downloads instead of sending the raw URL straight
+  // to KGet -- this reuses onDeterminingFilename/captureDownload below to
+  // get Chrome's real resolved filename (Content-Disposition, etc.) instead
+  // of leaving KGet to guess one from the bare URL, which drops query
+  // strings and gets opaque/signed URLs wrong.
+  chrome.downloads.download({ url }, (downloadId) => {
+    if (chrome.runtime.lastError || downloadId === undefined) {
+      console.error(
+        "[kget-capture] couldn't start download to resolve filename, falling back to raw URL:",
+        chrome.runtime.lastError && chrome.runtime.lastError.message
+      );
+      sendToKGet(url, null);
+      return;
+    }
+    pendingContextMenuDownloads.add(downloadId);
+  });
 });
 
-chrome.downloads.onCreated.addListener(async (item) => {
+// onDeterminingFilename (rather than onCreated) fires once Chrome has
+// already resolved the real filename (from Content-Disposition or the URL),
+// which is exactly what we need to hand KGet the correct name instead of an
+// opaque URL path segment.
+chrome.downloads.onDeterminingFilename.addListener((item, suggest) => {
+  // We're about to cancel this download regardless, so Chrome's own choice
+  // doesn't matter -- just let it proceed so the event resolves promptly.
+  suggest();
+  captureDownload(item);
+});
+
+async function captureDownload(item) {
+  const isContextMenuCapture = pendingContextMenuDownloads.delete(item.id);
   const { autoCaptureEnabled } = await chrome.storage.local.get({ autoCaptureEnabled: true });
-  if (!autoCaptureEnabled) return;
+  if (!autoCaptureEnabled && !isContextMenuCapture) return;
 
   const url = item.finalUrl || item.url;
-  if (url.startsWith("blob:") || url.startsWith("data:")) {
-    console.warn("[kget-capture] cannot redirect blob:/data: URL, letting Chrome handle it:", url);
+  if (!isCapturableUrl(url)) {
+    console.warn("[kget-capture] cannot hand a local/embedded URL to KGet, letting Chrome handle it:", url);
     return;
   }
 
@@ -67,8 +119,10 @@ chrome.downloads.onCreated.addListener(async (item) => {
   } catch (e) {
     console.error("[kget-capture] failed to erase Chrome download entry:", e);
   }
-  sendToKGet(url);
-});
+
+  const filename = item.filename ? item.filename.split(/[\\/]/).pop() : null;
+  sendToKGet(url, filename);
+}
 
 chrome.storage.onChanged.addListener((changes, area) => {
   if (area === "local" && "autoCaptureEnabled" in changes) {

extension/manifest.json

@@ -1,7 +1,7 @@
 {
   "manifest_version": 3,
   "name": "KGet Capture",
-  "version": "1.0.0",
+  "version": "1.0.5",
   "description": "Send browser downloads to KGet (KDE Download Manager) on Linux.",
   "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtM1nFg5pPd3UBzynUJHj6aUy7bjudZaX9AQTWGMqAX3fXylw1lubSzP1/BaS9ivvgOJg/loyEgzEZlcNPzblFVlg8BqEJ3tntdk2OzYvUs0pUdcPzzyjso9TykCkUUTI7ev8JkreW/FYlinfvNwSYN4/c1s3h8/I6XHtxOdmO1G3bS98+BQaXPldbDmxoKwyWR8u1f8gTO2Mg3GY4BHau3RWf1kgtNzh20p9wE3sEFdWkFu7ArgRCIrWLh6m3O6lolnHQSCWPwtOTx893Qkp9Eu6FwUnoWc8rsYx8sqa0eNCTCS6Kjr1Iu3yEJ5y9390jUiDZTQ/c62ueCTQaYv2bwIDAQAB",
   "permissions": ["downloads", "contextMenus", "storage", "nativeMessaging"],

extension/popup.css

@@ -1,5 +1,5 @@
 body {
-  width: 240px;
+  width: 320px;
   padding: 12px;
   font-family: system-ui, sans-serif;
   font-size: 13px;
@@ -27,3 +27,47 @@ h1 {
   color: #777;
   line-height: 1.4;
 }
+
+.hint button {
+  display: block;
+  margin-top: 6px;
+  padding: 4px 8px;
+  font-size: 12px;
+  font-family: inherit;
+  cursor: pointer;
+}
+
+.cmd-row {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  margin-top: 8px;
+}
+
+.cmd-row code {
+  flex: 1;
+  min-width: 0;
+  overflow-x: auto;
+  white-space: nowrap;
+  background: #f0f0f0;
+  padding: 4px 6px;
+  border-radius: 3px;
+  font-size: 11px;
+}
+
+.cmd-row button {
+  flex: none;
+  padding: 4px 8px;
+  font-size: 12px;
+  font-family: inherit;
+  cursor: pointer;
+}
+
+#recheck-setup {
+  display: block;
+  margin-top: 10px;
+  padding: 4px 8px;
+  font-size: 12px;
+  font-family: inherit;
+  cursor: pointer;
+}

extension/popup.html

@@ -6,13 +6,32 @@
 </head>
 <body>
   <h1>KGet Capture</h1>
-  <label class="toggle-row">
-    <input type="checkbox" id="auto-capture-toggle">
-    <span>Auto-capture all downloads</span>
-  </label>
-  <p class="status" id="status-line"></p>
-  <p class="hint">Right-click any link, image, video, or audio and choose
-    "Download with KGet" to send it to KGet on demand.</p>
+
+  <div id="setup-needed" hidden>
+    <p class="hint">One-time setup needed: KGet Capture needs a small local
+      helper installed before it can talk to KGet. Run this in a terminal:</p>
+    <div class="cmd-row">
+      <code id="setup-command"></code>
+      <button id="copy-command" type="button">Copy</button>
+    </div>
+    <p class="status" id="copy-feedback"></p>
+    <button id="recheck-setup" type="button">I ran it, check again</button>
+  </div>
+
+  <div id="ready" hidden>
+    <label class="toggle-row">
+      <input type="checkbox" id="auto-capture-toggle">
+      <span>Auto-capture all downloads</span>
+    </label>
+    <p class="status" id="status-line"></p>
+    <p class="hint">Right-click any link, image, video, or audio and choose
+      "Download with KGet" to send it to KGet on demand.</p>
+    <p class="hint">Downloads still prompting for a location? Chrome shows that
+      dialog itself, before this extension can intercept anything.
+      <button id="open-download-settings" type="button">Turn off Chrome's download prompt</button>
+    </p>
+  </div>
+
   <script src="popup.js"></script>
 </body>
 </html>

extension/popup.js

@@ -1,16 +1,67 @@
+const NATIVE_HOST = "com.kget_capture.host";
+const INSTALL_COMMAND =
+  "curl -fsSL https://raw.githubusercontent.com/andwati/kget-capture/main/install-remote.sh | bash";
+
+const setupPanel = document.getElementById("setup-needed");
+const readyPanel = document.getElementById("ready");
 const checkbox = document.getElementById("auto-capture-toggle");
 const statusLine = document.getElementById("status-line");
+const copyFeedback = document.getElementById("copy-feedback");
 
 function renderStatus(enabled) {
   statusLine.textContent = `Auto-capture: ${enabled ? "ON" : "OFF"}`;
 }
 
-chrome.storage.local.get({ autoCaptureEnabled: true }).then(({ autoCaptureEnabled }) => {
-  checkbox.checked = autoCaptureEnabled;
-  renderStatus(autoCaptureEnabled);
+function showReady() {
+  setupPanel.hidden = true;
+  readyPanel.hidden = false;
+  chrome.storage.local.get({ autoCaptureEnabled: true }).then(({ autoCaptureEnabled }) => {
+    checkbox.checked = autoCaptureEnabled;
+    renderStatus(autoCaptureEnabled);
+  });
+}
+
+function showSetupNeeded() {
+  document.getElementById("setup-command").textContent = INSTALL_COMMAND;
+  readyPanel.hidden = true;
+  setupPanel.hidden = false;
+}
+
+// The native host is only reachable once install.sh (or install-remote.sh)
+// has registered it -- sendNativeMessage fails with a lastError like
+// "Specified native messaging host not found" until then, which is exactly
+// the signal we want to gate the rest of the popup on.
+function checkNativeHost() {
+  chrome.runtime.sendNativeMessage(NATIVE_HOST, { action: "ping" }, () => {
+    if (chrome.runtime.lastError) {
+      showSetupNeeded();
+    } else {
+      showReady();
+    }
+  });
+}
+
+checkNativeHost();
+
+document.getElementById("recheck-setup").addEventListener("click", checkNativeHost);
+
+document.getElementById("copy-command").addEventListener("click", async () => {
+  try {
+    await navigator.clipboard.writeText(INSTALL_COMMAND);
+    copyFeedback.textContent = "Copied to clipboard.";
+  } catch (e) {
+    copyFeedback.textContent = "Couldn't copy -- select and copy the command manually.";
+  }
+  setTimeout(() => {
+    copyFeedback.textContent = "";
+  }, 2000);
 });
 
 checkbox.addEventListener("change", () => {
   chrome.storage.local.set({ autoCaptureEnabled: checkbox.checked });
   renderStatus(checkbox.checked);
 });
+
+document.getElementById("open-download-settings").addEventListener("click", () => {
+  chrome.tabs.create({ url: "chrome://settings/downloads" });
+});

install-remote.sh

@@ -0,0 +1,60 @@
+#!/usr/bin/env bash
+# Fetches the latest release source archive and runs install.sh from it, so
+# setup doesn't require a git clone:
+#
+#   curl -fsSL https://raw.githubusercontent.com/andwati/kget-capture/main/install-remote.sh | bash
+#   wget -qO- https://raw.githubusercontent.com/andwati/kget-capture/main/install-remote.sh | bash
+set -euo pipefail
+
+REPO="andwati/kget-capture"
+
+fetch_stdout() {
+  if command -v curl >/dev/null 2>&1; then
+    curl -fsSL "$1"
+  elif command -v wget >/dev/null 2>&1; then
+    wget -qO- "$1"
+  else
+    echo "ERROR: this installer needs 'curl' or 'wget' on PATH." >&2
+    exit 1
+  fi
+}
+
+fetch_to_file() {
+  if command -v curl >/dev/null 2>&1; then
+    curl -fsSL "$1" -o "$2"
+  else
+    wget -qO "$2" "$1"
+  fi
+}
+
+echo "Looking up the latest release..."
+tag="$(fetch_stdout "https://api.github.com/repos/$REPO/releases/latest" \
+  | grep -m1 '"tag_name"' | sed -E 's/.*"tag_name": *"([^"]+)".*/\1/')"
+if [ -z "$tag" ]; then
+  echo "ERROR: couldn't determine the latest release tag from GitHub." >&2
+  exit 1
+fi
+echo "Latest release: $tag"
+
+if ! command -v python3 >/dev/null 2>&1; then
+  echo "ERROR: 'python3' is required but not found on PATH." >&2
+  exit 1
+fi
+
+tmp_dir="$(mktemp -d)"
+trap 'rm -rf "$tmp_dir"' EXIT
+
+zip_path="$tmp_dir/kget-capture.zip"
+zip_url="https://github.com/$REPO/releases/download/$tag/kget-capture-$tag.zip"
+echo "Downloading $zip_url..."
+fetch_to_file "$zip_url" "$zip_path"
+
+echo "Extracting..."
+src_dir="$tmp_dir/src"
+python3 -c "
+import sys, zipfile
+zipfile.ZipFile(sys.argv[1]).extractall(sys.argv[2])
+" "$zip_path" "$src_dir"
+
+echo "Running install.sh..."
+bash "$src_dir/install.sh"

install.sh

@@ -51,6 +51,24 @@ if [ "$registered_any" = false ]; then
   done
 fi
 
+declare -A BROWSER_SETTINGS_URLS=(
+  ["Google Chrome"]="chrome://settings/downloads"
+  ["Chromium"]="chrome://settings/downloads"
+  ["Brave"]="brave://settings/downloads"
+  ["Vivaldi"]="vivaldi://settings/downloads"
+  ["Microsoft Edge"]="edge://settings/downloads"
+)
+
+echo "Checking Chrome's \"Ask where to save each file\" setting..."
+prompt_warnings=()
+for browser in "${!BROWSER_DIRS[@]}"; do
+  config_dir="${BROWSER_DIRS[$browser]}"
+  prefs_file="$config_dir/Default/Preferences"
+  if [ -f "$prefs_file" ] && grep -q '"prompt_for_download":true' "$prefs_file" 2>/dev/null; then
+    prompt_warnings+=("  - $browser: open ${BROWSER_SETTINGS_URLS[$browser]} and turn off \"Ask where to save each file before downloading\"")
+  fi
+done
+
 echo "Checking KGet's default download folder..."
 python3 - <<'PYEOF'
 import configparser
@@ -90,6 +108,27 @@ else:
     print("(If KGet is currently running, restart it for this to take effect.)")
 PYEOF
 
+echo "Disabling KGet's own per-transfer notification..."
+# KGet only fires this event if the transfer was still non-Finished the
+# first time its UI observed it -- small/fast downloads routinely finish
+# before that, so KGet silently skips it for them. kget_capture_host.py
+# shows its own "Download complete" notification (via notify-send) for
+# every capture instead, driven by polling actual transfer progress, so it
+# fires reliably regardless of download speed. Disable KGet's copy here to
+# avoid a duplicate popup on the transfers that are slow enough for it to
+# fire on its own.
+if command -v kwriteconfig6 >/dev/null 2>&1; then
+  kwriteconfig6 --file knotifyrc --group "Event/kget/finished" --key Action None
+  echo "Done -- KGet Capture's own notification will be used instead"
+else
+  echo "Skipped: 'kwriteconfig6' not found (not on KDE Plasma?) -- KGet's own notification, if any, is left as configured"
+fi
+
+echo "Checking for 'notify-send' (used for the download-complete notification)..."
+if ! command -v notify-send >/dev/null 2>&1; then
+  echo "WARNING: 'notify-send' not found -- captures will still work, but you won't get a notification when they finish"
+fi
+
 EXT_ID=$(cat "$SCRIPT_DIR/keys/extension-id.txt")
 
 cat <<EOF
@@ -106,3 +145,15 @@ Next steps:
 
 Make sure KGet is running (or set to autostart) for captures to work.
 EOF
+
+if [ "${#prompt_warnings[@]}" -gt 0 ]; then
+  cat <<EOF
+
+WARNING: "Ask where to save each file before downloading" is ON for:
+$(printf '%s\n' "${prompt_warnings[@]}")
+
+Chrome shows that dialog itself, before the extension ever gets a chance to
+intercept the download -- no extension API can read or suppress it. Turn it
+off in each browser above or captures will keep prompting for a location.
+EOF
+fi

native-host/kget_capture_host.py

@@ -2,11 +2,30 @@
 """Native messaging host bridging Chrome to KGet's D-Bus service."""
 
 import json
+import os
+import re
+import shutil
 import struct
 import subprocess
 import sys
 
 
+def default_download_dir():
+    home = os.path.expanduser("~")
+    try:
+        result = subprocess.run(
+            ["xdg-user-dir", "DOWNLOAD"], capture_output=True, text=True, timeout=5
+        )
+        downloads = result.stdout.strip()
+    except (FileNotFoundError, subprocess.TimeoutExpired):
+        downloads = ""
+    # xdg-user-dir falls back to bare $HOME (not $HOME/Downloads) when
+    # there's no ~/.config/user-dirs.dirs at all -- treat that as not found.
+    if not downloads or downloads.rstrip("/") == home.rstrip("/"):
+        return os.path.join(home, "Downloads")
+    return downloads
+
+
 def read_message():
     raw_length = sys.stdin.buffer.read(4)
     if len(raw_length) < 4:
@@ -23,41 +42,135 @@ def write_message(message):
     sys.stdout.buffer.flush()
 
 
-def add_transfer(url):
-    # showNewTransferDialog opens KGet's "New Download" dialog (editable name
-    # and destination) and returns immediately without waiting for the user
-    # to interact with it. addTransfer, by contrast, only returns once the
-    # dialog is dismissed when destDir is empty -- it blocks the D-Bus call
-    # on human input, which is why we don't use it here.
+def add_transfer(url, filename):
+    # A non-empty destDir makes KGet add+start the transfer immediately with
+    # no interactive dialog. Passing dir+filename (when we know the real
+    # filename, e.g. from Chrome's own Content-Disposition resolution) also
+    # sidesteps KGet's own filename guess, which is derived purely from the
+    # URL path and gets it wrong for opaque/signed URLs.
+    dest_dir = default_download_dir()
+    # A bare directory path with no trailing slash (e.g. "/home/ian/Downloads")
+    # gets misparsed by KGet's addTransfer as dir="/home/ian" + filename=
+    # "Downloads" -- the same split it applies to a real dir/filename path --
+    # landing the transfer in the parent directory instead. A trailing slash
+    # keeps it unambiguous when we don't have a real filename to append.
+    dest = os.path.join(dest_dir, filename) if filename else dest_dir.rstrip("/") + "/"
     cmd = [
         "dbus-send",
         "--print-reply",
         "--reply-timeout=10000",
         "--dest=org.kde.kget",
         "/KGet",
-        "org.kde.kget.main.showNewTransferDialog",
-        f"array:string:{url}",
+        "org.kde.kget.main.addTransfer",
+        f"string:{url}",
+        f"string:{dest}",
+        "boolean:true",
     ]
     try:
         result = subprocess.run(cmd, capture_output=True, text=True, timeout=15)
     except FileNotFoundError:
-        return False, "dbus-send not found on this system"
+        return False, "dbus-send not found on this system", None, dest
     except subprocess.TimeoutExpired:
-        return False, "dbus-send call timed out (is KGet running?)"
+        return False, "dbus-send call timed out (is KGet running?)", None, dest
 
     if result.returncode != 0:
         stderr = result.stderr.strip()
-        return False, f"dbus-send failed: {stderr or 'unknown error'}"
-    return True, None
+        return False, f"dbus-send failed: {stderr or 'unknown error'}", None, dest
+
+    # addTransfer replies with an array of the new transfer's D-Bus object
+    # path(s), e.g. `array [ string "/KGet/Transfers/9" ]` -- grab the first
+    # one so we can poll it for completion (see spawn_notifier).
+    match = re.search(r'string "(/KGet/Transfers/\d+)"', result.stdout)
+    transfer_path = match.group(1) if match else None
+    return True, None, transfer_path, dest
+
+
+# KGet only fires its own "Download Finished" desktop notification if the
+# transfer was still in a non-Finished state the first time KGet's UI
+# observed it (see GenericObserver::transfersChangedEvent in KGet's
+# core/kget.cpp: `status() == Finished && startStatus() != Finished`).
+# Small/fast downloads routinely finish before that first observation, so
+# KGet silently skips the notification for them -- confirmed by tracing
+# actual D-Bus traffic against a running KGet instance. We replace it with
+# our own, driven by polling the transfer's real progress, so captures
+# always get a completion notification regardless of how fast they finish.
+_NOTIFIER_SCRIPT = """
+import subprocess, sys, time
+
+path, dest = sys.argv[1], sys.argv[2]
+
+def get_percent():
+    try:
+        result = subprocess.run(
+            ["dbus-send", "--session", "--print-reply", "--dest=org.kde.kget",
+             path, "org.kde.kget.transfer.percent"],
+            capture_output=True, text=True, timeout=10,
+        )
+    except (subprocess.TimeoutExpired, FileNotFoundError):
+        return None
+    if result.returncode != 0:
+        return None
+    for line in result.stdout.splitlines():
+        line = line.strip()
+        if line.startswith("int32"):
+            return int(line.split()[-1])
+    return None
+
+deadline = time.time() + 6 * 3600
+finished = False
+while time.time() < deadline:
+    percent = get_percent()
+    if percent is None:
+        break  # transfer object is gone: finished+cleared, cancelled, or KGet restarted
+    if percent >= 100:
+        finished = True
+        break
+    time.sleep(2)
+
+if finished:
+    subprocess.run(
+        ["notify-send", "--app-name=KGet Capture", "--icon=kget",
+         "Download complete", dest.rsplit("/", 1)[-1]],
+        timeout=10,
+    )
+"""
+
+
+def spawn_notifier(transfer_path, dest):
+    if not transfer_path or not shutil.which("notify-send"):
+        return
+    # Detached (new session, no inherited pipes) so it keeps running after
+    # Chrome closes the native-messaging connection and kills this process --
+    # sendNativeMessage() tears down its native host as soon as it gets a
+    # reply, which is long before a real download finishes.
+    subprocess.Popen(
+        [sys.executable, "-c", _NOTIFIER_SCRIPT, transfer_path, dest],
+        stdin=subprocess.DEVNULL,
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.DEVNULL,
+        start_new_session=True,
+    )
 
 
 def main():
     message = read_message()
-    if not message or message.get("action") != "addTransfer" or "url" not in message:
+    if not message:
         write_message({"ok": False, "error": "invalid request"})
         return
 
-    ok, error = add_transfer(message["url"])
+    # The extension popup uses this to detect whether the native host is
+    # installed/registered at all, distinct from whether a transfer succeeds.
+    if message.get("action") == "ping":
+        write_message({"ok": True})
+        return
+
+    if message.get("action") != "addTransfer" or "url" not in message:
+        write_message({"ok": False, "error": "invalid request"})
+        return
+
+    ok, error, transfer_path, dest = add_transfer(message["url"], message.get("filename"))
+    if ok:
+        spawn_notifier(transfer_path, dest)
     write_message({"ok": True} if ok else {"ok": False, "error": error})