Add native self-hosted instance connection to fluxer_desktop

Trimmed monorepo checkout (fluxer_desktop + packages/voice_engine_v2 +
tools/ci) with a "Connect to a Different Server" menu item and popout
that lets the desktop app switch to any self-hosted Fluxer instance,
plus fixes for well-known discovery on single-domain self-hosted
deployments and a false-positive ERR_ABORTED on same-origin client
redirects during the switch. Defaults to chat.fluxr.chat and uses an
isolated userData directory from the official build.
This commit is contained in:
2026-07-01 18:22:43 -04:00
commit 682afacd30
1763 changed files with 613720 additions and 0 deletions
+287
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@@ -0,0 +1,287 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4
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@@ -0,0 +1,28 @@
[package]
name = "fluxer_win_clipboard"
version = "0.0.0"
edition = "2024"
license = "AGPL-3.0-or-later"
publish = false
[workspace]
resolver = "2"
[lib]
crate-type = ["cdylib", "rlib"]
[dependencies]
napi = {version = "3.9.1", default-features = false, features = ["dyn-symbols", "napi8"]}
napi-derive = "3.5.6"
[target.'cfg(target_os = "windows")'.dependencies]
windows-sys = {version = "0.61.2", features = [
"Win32_Foundation",
"Win32_System_DataExchange",
"Win32_System_Memory",
"Win32_System_Ole",
"Win32_UI_WindowsAndMessaging",
]}
[build-dependencies]
napi-build = "2.3.2"
@@ -0,0 +1,5 @@
// SPDX-License-Identifier: AGPL-3.0-or-later
fn main() {
napi_build::setup();
}
+5
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@@ -0,0 +1,5 @@
// SPDX-License-Identifier: AGPL-3.0-or-later
export declare function writeFileReferenceToClipboard(filePath: string): Promise<void>;
export declare const loadError: Error | null;
@@ -0,0 +1,61 @@
// SPDX-License-Identifier: AGPL-3.0-or-later
const {existsSync} = require('node:fs');
const {join, sep} = require('node:path');
const {createNativeLoadError, loadNativeBinding} = require('./loader-diagnostics.cjs');
const MODULE_NAME = '@fluxer/win-clipboard';
function resolveNativeRoot() {
const asarSegment = `${sep}app.asar${sep}`;
if (!__dirname.includes(asarSegment)) return __dirname;
const unpackedDir = __dirname.replace(asarSegment, `${sep}app.asar.unpacked${sep}`);
return existsSync(unpackedDir) ? unpackedDir : __dirname;
}
function nativeFileName() {
if (process.platform !== 'win32') {
throw new Error(`@fluxer/win-clipboard is only supported on Windows, got ${process.platform}`);
}
switch (process.arch) {
case 'x64':
return 'win-clipboard.win32-x64-msvc.node';
case 'arm64':
return 'win-clipboard.win32-arm64-msvc.node';
default:
throw new Error(`Unsupported Windows architecture: ${process.arch}`);
}
}
let binding = null;
let loadError = null;
if (process.platform === 'win32') {
try {
const nativeRoot = resolveNativeRoot();
const nativePath = join(nativeRoot, nativeFileName());
const loaded = loadNativeBinding({
moduleName: MODULE_NAME,
nativePath,
nativeRoot,
packageDir: __dirname,
probe: false,
});
binding = loaded.binding;
loadError = loaded.loadError;
if (loadError) throw loadError;
} catch (error) {
loadError = createNativeLoadError({
moduleName: MODULE_NAME,
nativeRoot: resolveNativeRoot(),
packageDir: __dirname,
reason: 'native loader threw before binding load completed',
cause: error,
});
throw loadError;
}
}
module.exports = {
writeFileReferenceToClipboard: binding ? binding.writeFileReferenceToClipboard : null,
loadError,
};
@@ -0,0 +1,524 @@
// SPDX-License-Identifier: AGPL-3.0-or-later
const {existsSync, readdirSync, readFileSync, statSync} = require('node:fs');
const os = require('node:os');
const {basename} = require('node:path');
const {spawnSync} = require('node:child_process');
const NATIVE_LOAD_ERROR_MARKER = Symbol.for('fluxer.nativeLoadError');
const MAX_TEXT_LENGTH = 6000;
const MAX_DIRECTORY_ENTRIES = 80;
function trimText(value, limit = MAX_TEXT_LENGTH) {
const text = Buffer.isBuffer(value) ? value.toString('utf8') : String(value ?? '');
const trimmed = text.trim();
if (!trimmed) return null;
return trimmed.length > limit ? `${trimmed.slice(0, limit)}\n...<truncated>` : trimmed;
}
function errorDiagnostic(error) {
if (!error) return null;
if (error instanceof Error) {
return {
name: error.name || 'Error',
message: error.message,
code: error.code || null,
stack: trimText(error.stack || error.message),
};
}
return {
name: typeof error,
message: trimText(String(error)),
code: null,
stack: null,
};
}
function formatErrorDiagnostic(diagnostic) {
if (!diagnostic) return null;
const lines = [];
if (diagnostic.code) lines.push(`code=${diagnostic.code}`);
if (diagnostic.stack) lines.push(diagnostic.stack);
else if (diagnostic.message) lines.push(diagnostic.message);
return trimText(lines.join('\n'));
}
function fileDiagnostic(filePath) {
if (!filePath) return {path: null, exists: false, error: 'not resolved'};
try {
const stat = statSync(filePath);
return {
path: filePath,
exists: true,
size: stat.size,
mode: `0${(stat.mode & 0o777).toString(8)}`,
mtime: stat.mtime.toISOString(),
isFile: stat.isFile(),
isDirectory: stat.isDirectory(),
};
} catch (error) {
const reason = error instanceof Error ? error.message : String(error);
return {path: filePath, exists: false, error: reason};
}
}
function formatFileDiagnostic(diagnostic) {
if (!diagnostic) return 'not resolved';
if (!diagnostic.exists) return `exists=false, statError=${diagnostic.error || '<unknown>'}`;
return [
`exists=true`,
`size=${diagnostic.size}`,
`mode=${diagnostic.mode}`,
`mtime=${diagnostic.mtime}`,
`isFile=${diagnostic.isFile}`,
].join(', ');
}
function directoryDiagnostic(dirPath) {
if (!dirPath) return {path: null, ok: false, error: 'not resolved', entries: [], total: 0, omitted: 0};
try {
const entries = readdirSync(dirPath, {withFileTypes: true}).map((entry) => ({
name: entry.name,
type: entry.isDirectory() ? 'directory' : entry.isFile() ? 'file' : 'other',
}));
entries.sort((a, b) => a.name.localeCompare(b.name));
const visible = entries.slice(0, MAX_DIRECTORY_ENTRIES);
return {
path: dirPath,
ok: true,
entries: visible,
total: entries.length,
omitted: Math.max(0, entries.length - visible.length),
};
} catch (error) {
return {
path: dirPath,
ok: false,
error: error instanceof Error ? error.message : String(error),
entries: [],
total: 0,
omitted: 0,
};
}
}
function formatDirectoryDiagnostic(diagnostic) {
if (!diagnostic) return '<unavailable>';
if (!diagnostic.ok) return `directory listing failed: ${diagnostic.error || '<unknown>'}`;
const entries = diagnostic.entries.map((entry) => `${entry.name}${entry.type === 'directory' ? '/' : ''}`);
const suffix = diagnostic.omitted > 0 ? [`...<${diagnostic.omitted} more entries>`] : [];
return [...entries, ...suffix].join('\n') || '<empty>';
}
function selectedEnvironmentNames(skipNativeProbeEnv) {
const names = [
'ELECTRON_RUN_AS_NODE',
'FLUXER_NATIVE_MODULE_PREFLIGHT_CHILD',
'LD_LIBRARY_PATH',
'DYLD_LIBRARY_PATH',
'DISPLAY',
'WAYLAND_DISPLAY',
'XDG_CURRENT_DESKTOP',
'XDG_SESSION_TYPE',
'DBUS_SESSION_BUS_ADDRESS',
'PULSE_SERVER',
'PIPEWIRE_REMOTE',
'PATH',
];
if (skipNativeProbeEnv) names.push(skipNativeProbeEnv);
return names;
}
function environmentDiagnostics(skipNativeProbeEnv) {
return Object.fromEntries(
selectedEnvironmentNames(skipNativeProbeEnv).map((name) => [name, process.env[name] ?? null]),
);
}
function formatEnvironment(diagnostic) {
return Object.entries(diagnostic)
.map(([name, value]) => `${name}=${value ?? '<unset>'}`)
.join('\n');
}
function runtimeDiagnostics() {
const versions = process.versions || {};
let reportHeader = null;
if (process.report && typeof process.report.getReport === 'function') {
try {
reportHeader = process.report.getReport().header || null;
} catch {
reportHeader = null;
}
}
const glibcRuntime = versions.glibcVersionRuntime || reportHeader?.glibcVersionRuntime || '<unknown>';
const glibcCompiler = versions.glibcVersionCompiler || reportHeader?.glibcVersionCompiler || '<unknown>';
return {
node: versions.node || null,
electron: versions.electron || null,
modules: versions.modules || null,
napi: versions.napi || null,
v8: versions.v8 || null,
uv: versions.uv || null,
openssl: versions.openssl || null,
glibcRuntime,
glibcCompiler,
platform: process.platform,
arch: process.arch,
osType: os.type(),
osRelease: os.release(),
osVersion: typeof os.version === 'function' ? os.version() : null,
execPath: process.execPath,
resourcesPath: process.resourcesPath || null,
cwd: process.cwd(),
};
}
function formatRuntimeDiagnostics(diagnostic) {
return [
`node=${diagnostic.node || '<unknown>'}`,
`electron=${diagnostic.electron || '<none>'}`,
`modules=${diagnostic.modules || '<unknown>'}`,
`napi=${diagnostic.napi || '<unknown>'}`,
`v8=${diagnostic.v8 || '<unknown>'}`,
`uv=${diagnostic.uv || '<unknown>'}`,
`openssl=${diagnostic.openssl || '<unknown>'}`,
`glibcRuntime=${diagnostic.glibcRuntime || '<unknown>'}`,
`glibcCompiler=${diagnostic.glibcCompiler || '<unknown>'}`,
`process=${diagnostic.platform}/${diagnostic.arch}`,
`os=${diagnostic.osType} ${diagnostic.osRelease} ${diagnostic.osVersion || '<unknown>'}`,
`execPath=${diagnostic.execPath}`,
`resourcesPath=${diagnostic.resourcesPath || '<unknown>'}`,
`cwd=${diagnostic.cwd}`,
].join('\n');
}
const REDISTRIBUTABLE_RUNTIME_PATTERNS = [
/^vcruntime\d+(?:_\d+)?\.dll$/i,
/^msvcp\d+(?:_\d+)?\.dll$/i,
/^msvcr\d+(?:_\d+)?\.dll$/i,
/^concrt\d+\.dll$/i,
/^vcamp\d+\.dll$/i,
/^vcomp\d+\.dll$/i,
];
function readPeImports(filePath) {
let buffer;
try {
buffer = readFileSync(filePath);
} catch {
return null;
}
if (buffer.length < 0x40) return null;
const peOffset = buffer.readUInt32LE(0x3c);
if (peOffset <= 0 || peOffset + 24 >= buffer.length) return null;
if (buffer.readUInt32LE(peOffset) !== 0x4550) return null;
const coffOffset = peOffset + 4;
const numberOfSections = buffer.readUInt16LE(coffOffset + 2);
const sizeOfOptionalHeader = buffer.readUInt16LE(coffOffset + 16);
const optionalHeaderOffset = coffOffset + 20;
if (optionalHeaderOffset + sizeOfOptionalHeader > buffer.length) return null;
const magic = buffer.readUInt16LE(optionalHeaderOffset);
if (magic !== 0x10b && magic !== 0x20b) return null;
const dataDirectoriesOffset = optionalHeaderOffset + (magic === 0x20b ? 112 : 96);
const importEntryOffset = dataDirectoriesOffset + 8;
if (importEntryOffset + 8 > buffer.length) return null;
const importRva = buffer.readUInt32LE(importEntryOffset);
if (importRva === 0) return [];
const sections = [];
const sectionTableOffset = optionalHeaderOffset + sizeOfOptionalHeader;
for (let i = 0; i < numberOfSections; i++) {
const base = sectionTableOffset + i * 40;
if (base + 40 > buffer.length) return null;
sections.push({
virtualSize: buffer.readUInt32LE(base + 8),
virtualAddress: buffer.readUInt32LE(base + 12),
rawSize: buffer.readUInt32LE(base + 16),
rawPointer: buffer.readUInt32LE(base + 20),
});
}
const rvaToOffset = (rva) => {
for (const s of sections) {
const span = Math.max(s.virtualSize, s.rawSize);
if (rva >= s.virtualAddress && rva < s.virtualAddress + span) {
return rva - s.virtualAddress + s.rawPointer;
}
}
return -1;
};
const readCString = (offset) => {
let end = offset;
while (end < buffer.length && buffer[end] !== 0) end++;
return buffer.toString('ascii', offset, end);
};
const importTableOffset = rvaToOffset(importRva);
if (importTableOffset < 0) return [];
const imports = new Set();
for (let i = 0; i < 1024; i++) {
const base = importTableOffset + i * 20;
if (base + 20 > buffer.length) break;
const lookupRva = buffer.readUInt32LE(base);
const nameRva = buffer.readUInt32LE(base + 12);
const iatRva = buffer.readUInt32LE(base + 16);
if (lookupRva === 0 && nameRva === 0 && iatRva === 0) break;
const nameOffset = rvaToOffset(nameRva);
if (nameOffset < 0) continue;
const name = readCString(nameOffset);
if (name) imports.add(name);
}
return Array.from(imports);
}
function windowsImportProbe(nativePath) {
const imports = readPeImports(nativePath);
if (imports === null) return null;
const sortedImports = [...imports].sort((a, b) => a.toLowerCase().localeCompare(b.toLowerCase()));
const redistributable = sortedImports.filter((dll) =>
REDISTRIBUTABLE_RUNTIME_PATTERNS.some((pattern) => pattern.test(dll)),
);
return {
command: ['pe-imports', nativePath],
status: 0,
signal: null,
error: null,
stdout: sortedImports.join('\n') || null,
stderr: null,
missing: [],
redistributable,
};
}
function dependencyProbe(nativePath) {
if (!nativePath || !existsSync(nativePath)) return null;
if (process.platform === 'win32') return windowsImportProbe(nativePath);
const command =
process.platform === 'linux'
? ['ldd', nativePath]
: process.platform === 'darwin'
? ['otool', '-L', nativePath]
: null;
if (!command) return null;
const [bin, ...args] = command;
const result = spawnSync(bin, args, {
encoding: 'utf8',
timeout: 4000,
stdio: ['ignore', 'pipe', 'pipe'],
});
const stdout = trimText(result.stdout);
const stderr = trimText(result.stderr);
const missing =
process.platform === 'linux' && stdout
? stdout
.split('\n')
.map((line) => line.trim())
.filter((line) => line.includes('not found'))
: [];
return {
command,
status: result.status,
signal: result.signal || null,
error: result.error ? result.error.message : null,
stdout,
stderr,
missing,
redistributable: [],
};
}
function formatDependencyProbe(diagnostic) {
if (!diagnostic) return null;
const status = diagnostic.error
? `error=${diagnostic.error}`
: diagnostic.signal
? `signal=${diagnostic.signal}`
: `status=${diagnostic.status}`;
return [
`$ ${diagnostic.command.join(' ')}`,
status,
diagnostic.missing?.length ? `missing:\n${diagnostic.missing.join('\n')}` : null,
diagnostic.redistributable?.length
? `redistributableRuntimeImports (require VC++ redist on host):\n${diagnostic.redistributable.join('\n')}`
: null,
diagnostic.stdout ? `stdout:\n${diagnostic.stdout}` : null,
diagnostic.stderr ? `stderr:\n${diagnostic.stderr}` : null,
]
.filter(Boolean)
.join('\n');
}
function formatExtraDiagnostic(diagnostic) {
if (!diagnostic) return null;
if (typeof diagnostic === 'string') return diagnostic;
if (typeof diagnostic === 'object' && diagnostic.name && diagnostic.text) {
return `${diagnostic.name}:\n${diagnostic.text}`;
}
return `extra:\n${trimText(JSON.stringify(diagnostic, null, 2))}`;
}
function collectNativeDiagnostics({
moduleName,
nativePath,
nativeRoot,
packageDir,
reason,
cause,
skipNativeProbeEnv,
extraDiagnostics = [],
}) {
return {
schemaVersion: 1,
moduleName,
reason,
target: {
platform: process.platform,
arch: process.arch,
},
packageDir: packageDir || null,
nativeRoot: nativeRoot || null,
nativePath: nativePath || null,
nativeFile: nativePath ? basename(nativePath) : null,
nativeFileStat: fileDiagnostic(nativePath),
runtime: runtimeDiagnostics(),
environment: environmentDiagnostics(skipNativeProbeEnv),
nativeRootEntries: directoryDiagnostic(nativeRoot),
dependencyProbe: dependencyProbe(nativePath),
extraDiagnostics: extraDiagnostics.filter(Boolean),
cause: errorDiagnostic(cause),
};
}
function formatNativeDiagnostics(diagnostics) {
const sections = [
`module=${diagnostics.moduleName}`,
`reason=${diagnostics.reason}`,
`target=${diagnostics.target.platform}/${diagnostics.target.arch}`,
`packageDir=${diagnostics.packageDir || '<unknown>'}`,
`nativeRoot=${diagnostics.nativeRoot || '<unknown>'}`,
`nativePath=${diagnostics.nativePath || '<unknown>'}`,
`nativeFile=${diagnostics.nativeFile || '<unknown>'}`,
`nativeFileStat=${formatFileDiagnostic(diagnostics.nativeFileStat)}`,
`runtime:\n${formatRuntimeDiagnostics(diagnostics.runtime)}`,
`environment:\n${formatEnvironment(diagnostics.environment)}`,
`nativeRootEntries:\n${formatDirectoryDiagnostic(diagnostics.nativeRootEntries)}`,
...diagnostics.extraDiagnostics.map(formatExtraDiagnostic).filter(Boolean),
];
const dependencyOutput = formatDependencyProbe(diagnostics.dependencyProbe);
if (dependencyOutput) sections.push(`dependencyProbe:\n${dependencyOutput}`);
const causeText = formatErrorDiagnostic(diagnostics.cause);
if (causeText) sections.push(`cause:\n${causeText}`);
return sections.join('\n');
}
function isNativeLoadError(error) {
return Boolean(error?.[NATIVE_LOAD_ERROR_MARKER]);
}
function createNativeLoadError({
moduleName,
nativePath,
nativeRoot,
packageDir,
reason,
cause,
skipNativeProbeEnv,
extraDiagnostics = [],
}) {
if (isNativeLoadError(cause)) return cause;
const diagnostics = collectNativeDiagnostics({
moduleName,
nativePath,
nativeRoot,
packageDir,
reason,
cause,
skipNativeProbeEnv,
extraDiagnostics,
});
const error = new Error(`${moduleName} native module failed to load.\n${formatNativeDiagnostics(diagnostics)}`);
error.name = 'NativeModuleLoadError';
error[NATIVE_LOAD_ERROR_MARKER] = true;
error.nativeDiagnostics = diagnostics;
error.toJSON = () => ({
name: error.name,
message: error.message,
nativeDiagnostics: diagnostics,
});
if (cause) error.cause = cause;
return error;
}
function probeNativeBinary({moduleName, nativePath, nativeRoot, packageDir, skipNativeProbeEnv, timeoutMs = 5000}) {
if (!skipNativeProbeEnv || process.env[skipNativeProbeEnv] === '1') {
return null;
}
const result = spawnSync(process.execPath, ['-e', 'require(process.argv[1])', nativePath], {
env: {...process.env, ELECTRON_RUN_AS_NODE: '1', [skipNativeProbeEnv]: '1'},
encoding: 'utf8',
stdio: ['ignore', 'pipe', 'pipe'],
timeout: timeoutMs,
});
if (result.status === 0) return null;
const reason = result.error
? result.error.message
: result.signal
? `safety probe terminated by signal ${result.signal}`
: `safety probe exited with code ${result.status}`;
return createNativeLoadError({
moduleName,
nativePath,
nativeRoot,
packageDir,
reason,
skipNativeProbeEnv,
extraDiagnostics: [
result.stdout ? {name: 'probeStdout', text: trimText(result.stdout)} : null,
result.stderr ? {name: 'probeStderr', text: trimText(result.stderr)} : null,
],
});
}
function loadNativeBinding({moduleName, nativePath, nativeRoot, packageDir, skipNativeProbeEnv, probe = true}) {
if (!existsSync(nativePath)) {
return {
binding: null,
loadError: createNativeLoadError({
moduleName,
nativePath,
nativeRoot,
packageDir,
reason: 'native binary not found',
skipNativeProbeEnv,
}),
};
}
const nativeProbeError = probe
? probeNativeBinary({moduleName, nativePath, nativeRoot, packageDir, skipNativeProbeEnv})
: null;
if (nativeProbeError) {
return {binding: null, loadError: nativeProbeError};
}
try {
return {binding: require(nativePath), loadError: null};
} catch (error) {
return {
binding: null,
loadError: createNativeLoadError({
moduleName,
nativePath,
nativeRoot,
packageDir,
reason: 'require(nativePath) threw',
cause: error,
skipNativeProbeEnv,
}),
};
}
}
module.exports = {
collectNativeDiagnostics,
createNativeLoadError,
formatNativeDiagnostics,
isNativeLoadError,
loadNativeBinding,
probeNativeBinary,
};
@@ -0,0 +1,27 @@
{
"name": "@fluxer/win-clipboard",
"version": "0.0.0",
"description": "",
"private": true,
"license": "AGPL-3.0-or-later",
"os": [
"win32"
],
"cpu": [
"x64",
"arm64"
],
"main": "index.js",
"types": "index.d.ts",
"files": [
"index.js",
"index.d.ts",
"loader-diagnostics.cjs",
"win-clipboard.win32-x64-msvc.node",
"win-clipboard.win32-arm64-msvc.node"
],
"scripts": {
"build": "cargo run --locked --quiet --manifest-path ../../../tools/ci/Cargo.toml -- build-desktop-native-addon",
"test": "cargo test --manifest-path Cargo.toml"
}
}
@@ -0,0 +1,302 @@
// SPDX-License-Identifier: AGPL-3.0-or-later
use napi::Task;
use napi::bindgen_prelude::{AsyncTask, Env, Error, Result, Status};
use napi_derive::napi;
#[cfg(any(target_os = "windows", test))]
const DROPFILES_HEADER_SIZE: usize = 20;
#[cfg(any(target_os = "windows", test))]
const DROPFILES_PFILES_OFFSET: usize = 0;
#[cfg(any(target_os = "windows", test))]
const DROPFILES_FWIDE_OFFSET: usize = 16;
pub struct WriteFileReferenceTask {
path: String,
}
#[napi(js_name = "writeFileReferenceToClipboard")]
pub fn write_file_reference_to_clipboard(
file_path: String,
) -> Result<AsyncTask<WriteFileReferenceTask>> {
validate_file_path(&file_path)?;
Ok(AsyncTask::new(WriteFileReferenceTask { path: file_path }))
}
impl Task for WriteFileReferenceTask {
type Output = ();
type JsValue = ();
fn compute(&mut self) -> Result<Self::Output> {
platform::write_file_reference(&self.path)
}
fn resolve(&mut self, _env: Env, _output: Self::Output) -> Result<Self::JsValue> {
Ok(())
}
}
fn validate_file_path(path: &str) -> Result<()> {
if path.is_empty() {
return Err(Error::new(Status::InvalidArg, "path must be non-empty"));
}
if path.as_bytes().contains(&0) {
return Err(Error::new(
Status::InvalidArg,
"path must not contain NUL bytes",
));
}
Ok(())
}
#[cfg(any(target_os = "windows", test))]
fn build_hdrop_payload(path: &str) -> Vec<u8> {
let utf16: Vec<u16> = path.encode_utf16().collect();
let mut payload = vec![0; DROPFILES_HEADER_SIZE + ((utf16.len() + 2) * size_of::<u16>())];
payload[DROPFILES_PFILES_OFFSET..DROPFILES_PFILES_OFFSET + size_of::<u32>()]
.copy_from_slice(&(DROPFILES_HEADER_SIZE as u32).to_le_bytes());
payload[DROPFILES_FWIDE_OFFSET..DROPFILES_FWIDE_OFFSET + size_of::<i32>()]
.copy_from_slice(&1_i32.to_le_bytes());
let mut offset = DROPFILES_HEADER_SIZE;
for code_unit in utf16 {
payload[offset..offset + size_of::<u16>()].copy_from_slice(&code_unit.to_le_bytes());
offset += size_of::<u16>();
}
payload
}
#[cfg(target_os = "windows")]
mod platform {
use super::build_hdrop_payload;
use napi::bindgen_prelude::{Error, Result, Status};
use std::ffi::c_void;
use std::ptr::{copy_nonoverlapping, null_mut};
use windows_sys::Win32::Foundation::{GetLastError, GlobalFree, HGLOBAL, HWND};
use windows_sys::Win32::System::DataExchange::{
CloseClipboard, EmptyClipboard, OpenClipboard, SetClipboardData,
};
use windows_sys::Win32::System::Memory::{
GMEM_MOVEABLE, GMEM_ZEROINIT, GlobalAlloc, GlobalLock, GlobalUnlock,
};
use windows_sys::Win32::System::Ole::CF_HDROP;
use windows_sys::Win32::UI::WindowsAndMessaging::{CreateWindowExW, DestroyWindow};
const STATIC_WINDOW_CLASS: [u16; 7] = [
'S' as u16, 'T' as u16, 'A' as u16, 'T' as u16, 'I' as u16, 'C' as u16, 0,
];
struct OwnedGlobal {
handle: HGLOBAL,
}
impl OwnedGlobal {
fn new(handle: HGLOBAL) -> Self {
Self { handle }
}
fn handle(&self) -> HGLOBAL {
self.handle
}
fn into_clipboard(mut self) -> HGLOBAL {
let handle = self.handle;
self.handle = null_mut();
handle
}
}
impl Drop for OwnedGlobal {
fn drop(&mut self) {
if !self.handle.is_null() {
unsafe {
let _ = GlobalFree(self.handle);
}
}
}
}
struct LockedGlobal {
handle: HGLOBAL,
ptr: *mut c_void,
}
impl LockedGlobal {
fn new(handle: HGLOBAL) -> Result<Self> {
let ptr = unsafe { GlobalLock(handle) };
if ptr.is_null() {
return Err(last_error("GlobalLock failed"));
}
Ok(Self { handle, ptr })
}
fn as_mut_ptr(&self) -> *mut u8 {
self.ptr.cast()
}
}
impl Drop for LockedGlobal {
fn drop(&mut self) {
unsafe {
let _ = GlobalUnlock(self.handle);
}
}
}
struct ClipboardOwnerWindow {
hwnd: HWND,
}
impl ClipboardOwnerWindow {
fn create() -> Result<Self> {
let hwnd = unsafe {
CreateWindowExW(
0,
STATIC_WINDOW_CLASS.as_ptr(),
null_mut(),
0,
0,
0,
0,
0,
null_mut(),
null_mut(),
null_mut(),
null_mut(),
)
};
if hwnd.is_null() {
return Err(last_error("CreateWindowExW failed"));
}
Ok(Self { hwnd })
}
fn hwnd(&self) -> HWND {
self.hwnd
}
}
impl Drop for ClipboardOwnerWindow {
fn drop(&mut self) {
unsafe {
let _ = DestroyWindow(self.hwnd);
}
}
}
struct ClipboardGuard;
impl ClipboardGuard {
fn open(hwnd: HWND) -> Result<Self> {
if unsafe { OpenClipboard(hwnd) } == 0 {
return Err(last_error("OpenClipboard failed"));
}
Ok(Self)
}
}
impl Drop for ClipboardGuard {
fn drop(&mut self) {
unsafe {
let _ = CloseClipboard();
}
}
}
pub(super) fn write_file_reference(path: &str) -> Result<()> {
let payload = build_hdrop_payload(path);
let handle = unsafe { GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT, payload.len()) };
if handle.is_null() {
return Err(last_error("GlobalAlloc failed"));
}
let memory = OwnedGlobal::new(handle);
{
let locked = LockedGlobal::new(memory.handle())?;
unsafe {
copy_nonoverlapping(payload.as_ptr(), locked.as_mut_ptr(), payload.len());
}
}
let owner = ClipboardOwnerWindow::create()?;
let _clipboard = ClipboardGuard::open(owner.hwnd())?;
if unsafe { EmptyClipboard() } == 0 {
return Err(last_error("EmptyClipboard failed"));
}
if unsafe { SetClipboardData(CF_HDROP as u32, memory.handle()) }.is_null() {
return Err(last_error("SetClipboardData failed"));
}
let _ = memory.into_clipboard();
Ok(())
}
fn last_error(message: &str) -> Error {
Error::new(
Status::GenericFailure,
format!("{message} (err {})", unsafe { GetLastError() }),
)
}
}
#[cfg(not(target_os = "windows"))]
mod platform {
use napi::bindgen_prelude::{Error, Result, Status};
pub(super) fn write_file_reference(_path: &str) -> Result<()> {
Err(Error::new(
Status::GenericFailure,
"win-clipboard not supported on this platform",
))
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn validation_rejects_empty_paths() {
let err = validate_file_path("").expect_err("empty path should be rejected");
assert_eq!(err.status, Status::InvalidArg);
assert_eq!(err.reason, "path must be non-empty");
}
#[test]
fn validation_rejects_nul_bytes() {
let err = validate_file_path("before\0after").expect_err("NUL path should be rejected");
assert_eq!(err.status, Status::InvalidArg);
assert_eq!(err.reason, "path must not contain NUL bytes");
}
#[test]
fn hdrop_payload_uses_unicode_dropfiles_layout() {
let payload = build_hdrop_payload("C:\\Temp\\a.txt");
assert_eq!(payload.len(), DROPFILES_HEADER_SIZE + ((13 + 2) * 2));
assert_eq!(
u32::from_le_bytes(payload[0..4].try_into().unwrap()),
DROPFILES_HEADER_SIZE as u32
);
assert_eq!(i32::from_le_bytes(payload[4..8].try_into().unwrap()), 0);
assert_eq!(i32::from_le_bytes(payload[8..12].try_into().unwrap()), 0);
assert_eq!(i32::from_le_bytes(payload[12..16].try_into().unwrap()), 0);
assert_eq!(i32::from_le_bytes(payload[16..20].try_into().unwrap()), 1);
let path_units: Vec<u16> = payload[DROPFILES_HEADER_SIZE..payload.len() - 4]
.chunks_exact(2)
.map(|chunk| u16::from_le_bytes(chunk.try_into().unwrap()))
.collect();
assert_eq!(String::from_utf16(&path_units).unwrap(), "C:\\Temp\\a.txt");
assert_eq!(&payload[payload.len() - 4..], &[0, 0, 0, 0]);
}
#[cfg(not(target_os = "windows"))]
#[test]
fn non_windows_worker_preserves_stub_error_contract() {
let err =
platform::write_file_reference("/tmp/file.txt").expect_err("non-Windows should fail");
assert_eq!(err.status, Status::GenericFailure);
assert_eq!(err.reason, "win-clipboard not supported on this platform");
}
}