fix(desktop): Harden local file tree paths (#43618)

* fix(desktop): Harden local file tree paths

Normalize Electron local path handling across file tree, preview, media, and git-root flows. Reject malformed and Windows device paths, recheck sensitive files after realpath resolution, and preserve external symlink traversal with stable renderer errors.

* fix(desktop): Address file tree review feedback
This commit is contained in:
2026-06-11 22:05:59 +08:00 committed by GitHub
parent e372803554
commit b1af653bf6
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GPG key ID: B5690EEEBB952194
13 changed files with 988 additions and 139 deletions

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@ -0,0 +1,109 @@
'use strict'
const fs = require('node:fs')
const path = require('node:path')
const { resolveDirectoryForIpc } = require('./hardening.cjs')
const FS_READDIR_STAT_CONCURRENCY = 16
// Always-hidden noise (covers non-git projects too; gitignore catches many of
// these, but the project tree should keep the same hygiene without one).
const FS_READDIR_HIDDEN = new Set([
'.git',
'.hg',
'.svn',
'.cache',
'.next',
'.turbo',
'.venv',
'__pycache__',
'build',
'dist',
'node_modules',
'target',
'venv'
])
function direntIsDirectory(dirent) {
return typeof dirent.isDirectory === 'function' && dirent.isDirectory()
}
function direntIsFile(dirent) {
return typeof dirent.isFile === 'function' && dirent.isFile()
}
function direntIsSymbolicLink(dirent) {
return typeof dirent.isSymbolicLink === 'function' && dirent.isSymbolicLink()
}
function shouldStatDirent(dirent) {
if (direntIsDirectory(dirent)) return false
return direntIsSymbolicLink(dirent) || !direntIsFile(dirent)
}
async function entryForDirent(dirent, resolved, fsImpl) {
const fullPath = path.join(resolved, dirent.name)
let isDirectory = direntIsDirectory(dirent)
if (!isDirectory && shouldStatDirent(dirent)) {
try {
isDirectory = (await fsImpl.promises.stat(fullPath)).isDirectory()
} catch {
isDirectory = false
}
}
return { name: dirent.name, path: fullPath, isDirectory }
}
async function mapWithStatConcurrency(items, mapper) {
const results = new Array(items.length)
let nextIndex = 0
async function runWorker() {
while (nextIndex < items.length) {
const index = nextIndex
nextIndex += 1
results[index] = await mapper(items[index])
}
}
const workerCount = Math.min(FS_READDIR_STAT_CONCURRENCY, items.length)
const workers = Array.from({ length: workerCount }, () => runWorker())
await Promise.all(workers)
return results
}
async function readDirForIpc(dirPath, options = {}) {
const fsImpl = options.fs || fs
let resolved
try {
;({ resolvedPath: resolved } = await resolveDirectoryForIpc(dirPath, {
fs: fsImpl,
purpose: 'Directory read'
}))
} catch (error) {
return { entries: [], error: error?.code || 'read-error' }
}
try {
const dirents = await fsImpl.promises.readdir(resolved, { withFileTypes: true })
const visibleDirents = dirents.filter(dirent => !FS_READDIR_HIDDEN.has(dirent.name))
const entries = await mapWithStatConcurrency(visibleDirents, dirent =>
entryForDirent(dirent, resolved, fsImpl)
)
entries.sort((a, b) => Number(b.isDirectory) - Number(a.isDirectory) || a.name.localeCompare(b.name))
return { entries }
} catch (error) {
return { entries: [], error: error?.code || 'read-error' }
}
}
module.exports = {
readDirForIpc
}

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@ -0,0 +1,364 @@
'use strict'
const assert = require('node:assert/strict')
const fs = require('node:fs')
const os = require('node:os')
const path = require('node:path')
const test = require('node:test')
const { pathToFileURL } = require('node:url')
const { readDirForIpc } = require('./fs-read-dir.cjs')
function mkTmpDir() {
return fs.mkdtempSync(path.join(os.tmpdir(), 'hermes-fs-read-dir-'))
}
function fakeDirent(name, flags = {}) {
return {
name,
isDirectory: () => Boolean(flags.directory),
isFile: () => Boolean(flags.file),
isSymbolicLink: () => Boolean(flags.symlink)
}
}
test('readDirForIpc hides noisy directories and files from the project tree', async () => {
const root = mkTmpDir()
try {
fs.mkdirSync(path.join(root, 'node_modules'))
fs.mkdirSync(path.join(root, 'src'))
fs.writeFileSync(path.join(root, 'target'), 'hidden file')
fs.writeFileSync(path.join(root, 'README.md'), 'visible file')
const result = await readDirForIpc(root)
assert.equal(result.error, undefined)
assert.deepEqual(
result.entries.map(entry => entry.name),
['src', 'README.md']
)
} finally {
fs.rmSync(root, { recursive: true, force: true })
}
})
test('readDirForIpc filters a hidden basename whether it is a file or directory', async () => {
const dirRoot = mkTmpDir()
const fileRoot = mkTmpDir()
try {
fs.mkdirSync(path.join(dirRoot, 'node_modules'))
fs.writeFileSync(path.join(dirRoot, 'visible.txt'), 'visible')
fs.writeFileSync(path.join(fileRoot, 'node_modules'), 'hidden file')
fs.writeFileSync(path.join(fileRoot, 'visible.txt'), 'visible')
assert.deepEqual(
(await readDirForIpc(dirRoot)).entries.map(entry => entry.name),
['visible.txt']
)
assert.deepEqual(
(await readDirForIpc(fileRoot)).entries.map(entry => entry.name),
['visible.txt']
)
} finally {
fs.rmSync(dirRoot, { recursive: true, force: true })
fs.rmSync(fileRoot, { recursive: true, force: true })
}
})
test('readDirForIpc returns directories before files and sorts by name within groups', async () => {
const root = mkTmpDir()
try {
fs.writeFileSync(path.join(root, 'z.txt'), 'z')
fs.mkdirSync(path.join(root, 'src'))
fs.writeFileSync(path.join(root, 'a.txt'), 'a')
fs.mkdirSync(path.join(root, 'lib'))
const result = await readDirForIpc(root)
assert.equal(result.error, undefined)
assert.deepEqual(
result.entries.map(entry => entry.name),
['lib', 'src', 'a.txt', 'z.txt']
)
} finally {
fs.rmSync(root, { recursive: true, force: true })
}
})
test('readDirForIpc accepts file URLs for directories', async () => {
const root = mkTmpDir()
try {
fs.mkdirSync(path.join(root, 'src'))
fs.writeFileSync(path.join(root, 'README.md'), 'visible file')
const result = await readDirForIpc(pathToFileURL(root).toString())
assert.equal(result.error, undefined)
assert.deepEqual(
result.entries.map(entry => entry.name),
['src', 'README.md']
)
} finally {
fs.rmSync(root, { recursive: true, force: true })
}
})
test('readDirForIpc returns invalid-path for blank or non-string input', async () => {
let readdirCalls = 0
const fsImpl = {
promises: {
readdir: async () => {
readdirCalls += 1
return []
}
}
}
assert.deepEqual(await readDirForIpc('', { fs: fsImpl }), { entries: [], error: 'invalid-path' })
assert.deepEqual(await readDirForIpc(' ', { fs: fsImpl }), { entries: [], error: 'invalid-path' })
assert.deepEqual(await readDirForIpc(null, { fs: fsImpl }), { entries: [], error: 'invalid-path' })
assert.equal(readdirCalls, 0)
})
test('readDirForIpc rejects Windows device paths before readdir', async () => {
let readdirCalls = 0
const fsImpl = {
promises: {
readdir: async () => {
readdirCalls += 1
return []
}
}
}
assert.deepEqual(await readDirForIpc('\\\\?\\C:\\secret', { fs: fsImpl }), {
entries: [],
error: 'device-path'
})
assert.equal(readdirCalls, 0)
})
test('readDirForIpc returns filesystem error codes instead of throwing', async () => {
const root = mkTmpDir()
try {
const result = await readDirForIpc(path.join(root, 'missing'))
assert.deepEqual(result, { entries: [], error: 'ENOENT' })
} finally {
fs.rmSync(root, { recursive: true, force: true })
}
})
test('readDirForIpc marks a symlink to a directory as a directory', async t => {
const root = mkTmpDir()
try {
fs.mkdirSync(path.join(root, 'actual-dir'))
try {
fs.symlinkSync(path.join(root, 'actual-dir'), path.join(root, 'linked-dir'), 'dir')
} catch (error) {
if (error?.code === 'EPERM' || error?.code === 'EACCES') {
t.skip(`symlink creation is not permitted on this platform (${error.code})`)
return
}
throw error
}
const result = await readDirForIpc(root)
const linked = result.entries.find(entry => entry.name === 'linked-dir')
assert.equal(result.error, undefined)
assert.equal(linked?.isDirectory, true)
} finally {
fs.rmSync(root, { recursive: true, force: true })
}
})
test('readDirForIpc marks a Windows junction to a directory as a directory', async t => {
if (process.platform !== 'win32') {
t.skip('junctions are a Windows-specific symlink type')
return
}
const root = mkTmpDir()
try {
fs.mkdirSync(path.join(root, 'actual-dir'))
try {
fs.symlinkSync(path.join(root, 'actual-dir'), path.join(root, 'junction-dir'), 'junction')
} catch (error) {
if (error?.code === 'EPERM' || error?.code === 'EACCES') {
t.skip(`junction creation is not permitted on this platform (${error.code})`)
return
}
throw error
}
const result = await readDirForIpc(root)
const junction = result.entries.find(entry => entry.name === 'junction-dir')
assert.equal(result.error, undefined)
assert.equal(junction?.isDirectory, true)
} finally {
fs.rmSync(root, { recursive: true, force: true })
}
})
test('readDirForIpc allows expanding symlink or junction directories outside the project root', async t => {
const root = mkTmpDir()
const outside = mkTmpDir()
try {
fs.writeFileSync(path.join(outside, 'outside.txt'), 'ok')
const linkPath = path.join(root, 'outside-link')
try {
fs.symlinkSync(outside, linkPath, process.platform === 'win32' ? 'junction' : 'dir')
} catch (error) {
if (error?.code === 'EPERM' || error?.code === 'EACCES') {
t.skip(`directory symlink creation is not permitted on this platform (${error.code})`)
return
}
throw error
}
const result = await readDirForIpc(linkPath)
assert.equal(result.error, undefined)
assert.deepEqual(result.entries, [
{ name: 'outside.txt', path: path.join(linkPath, 'outside.txt'), isDirectory: false }
])
} finally {
fs.rmSync(root, { recursive: true, force: true })
fs.rmSync(outside, { recursive: true, force: true })
}
})
test('readDirForIpc stats symbolic links and unknown entries without dropping the whole listing', async () => {
const input = path.join('virtual-root')
const resolved = path.resolve(input)
const statCalls = []
const fsImpl = {
promises: {
readdir: async () => [
fakeDirent('unknown-entry'),
fakeDirent('linked-dir', { symlink: true }),
fakeDirent('broken-link', { symlink: true }),
fakeDirent('plain.txt', { file: true })
],
stat: async fullPath => {
if (fullPath === resolved) {
return { isDirectory: () => true }
}
statCalls.push(fullPath)
if (fullPath.endsWith(`${path.sep}linked-dir`)) {
return { isDirectory: () => true }
}
throw Object.assign(new Error('gone'), { code: 'ENOENT' })
}
}
}
const result = await readDirForIpc(input, { fs: fsImpl })
assert.equal(result.error, undefined)
assert.deepEqual(
statCalls.sort(),
[path.join(resolved, 'broken-link'), path.join(resolved, 'linked-dir'), path.join(resolved, 'unknown-entry')].sort()
)
assert.deepEqual(result.entries, [
{ name: 'linked-dir', path: path.join(resolved, 'linked-dir'), isDirectory: true },
{ name: 'broken-link', path: path.join(resolved, 'broken-link'), isDirectory: false },
{ name: 'plain.txt', path: path.join(resolved, 'plain.txt'), isDirectory: false },
{ name: 'unknown-entry', path: path.join(resolved, 'unknown-entry'), isDirectory: false }
])
})
test('readDirForIpc bounds concurrent stats while preserving complete sorted output', async () => {
const input = path.join('virtual-root')
const resolved = path.resolve(input)
const names = Array.from({ length: 105 }, (_, index) => `entry-${String(104 - index).padStart(3, '0')}`)
const failedName = 'entry-100'
const directoryNames = new Set(names.filter((_, index) => index % 10 === 4))
const successfulDirectoryNames = new Set([...directoryNames].filter(name => name !== failedName))
const statCalls = []
let active = 0
let peak = 0
let releaseStats
let markFirstStatStarted
const statsReleased = new Promise(resolve => {
releaseStats = resolve
})
const firstStatStarted = new Promise(resolve => {
markFirstStatStarted = resolve
})
const fsImpl = {
promises: {
readdir: async () => [
fakeDirent('node_modules', { symlink: true }),
...names.map((name, index) => fakeDirent(name, { symlink: index % 2 === 0 }))
],
stat: async fullPath => {
if (fullPath === resolved) {
return { isDirectory: () => true }
}
statCalls.push(fullPath)
active += 1
peak = Math.max(peak, active)
markFirstStatStarted()
await statsReleased
active -= 1
const name = path.basename(fullPath)
if (name === failedName) {
throw Object.assign(new Error('gone'), { code: 'ENOENT' })
}
return { isDirectory: () => successfulDirectoryNames.has(name) }
}
}
}
const resultPromise = readDirForIpc(input, { fs: fsImpl })
await firstStatStarted
await new Promise(resolve => setImmediate(resolve))
releaseStats()
const result = await resultPromise
const expectedNames = [
...names.filter(name => successfulDirectoryNames.has(name)).sort(),
...names.filter(name => !successfulDirectoryNames.has(name)).sort()
]
assert.equal(result.error, undefined)
assert.equal(result.entries.length, names.length)
assert.equal(statCalls.length, names.length)
assert.equal(statCalls.some(fullPath => fullPath.endsWith(`${path.sep}node_modules`)), false)
assert.ok(peak > 1, `expected concurrent stats, observed peak ${peak}`)
assert.ok(peak <= 16, `expected at most 16 concurrent stats, observed peak ${peak}`)
assert.deepEqual(
result.entries.map(entry => entry.name),
expectedNames
)
assert.equal(result.entries.find(entry => entry.name === failedName)?.isDirectory, false)
assert.equal(
result.entries.filter(entry => entry.isDirectory).length,
successfulDirectoryNames.size
)
})

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@ -0,0 +1,54 @@
'use strict'
const fs = require('node:fs')
const path = require('node:path')
const { resolveRequestedPathForIpc } = require('./hardening.cjs')
function findGitRoot(start, fsImpl = fs) {
let dir = start
for (let i = 0; i < 50; i += 1) {
try {
if (fsImpl.existsSync(path.join(dir, '.git'))) {
return dir
}
} catch {
return null
}
const parent = path.dirname(dir)
if (parent === dir) {
return null
}
dir = parent
}
return null
}
async function gitRootForIpc(startPath, options = {}) {
const fsImpl = options.fs || fs
let resolved
try {
resolved = resolveRequestedPathForIpc(startPath, { purpose: 'Git root' })
} catch {
return null
}
try {
const stat = await fsImpl.promises.stat(resolved)
const start = stat.isDirectory() ? resolved : path.dirname(resolved)
return findGitRoot(start, fsImpl)
} catch {
return findGitRoot(resolved, fsImpl)
}
}
module.exports = {
findGitRoot,
gitRootForIpc
}

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@ -0,0 +1,40 @@
'use strict'
const assert = require('node:assert/strict')
const fs = require('node:fs')
const os = require('node:os')
const path = require('node:path')
const test = require('node:test')
const { pathToFileURL } = require('node:url')
const { gitRootForIpc } = require('./git-root.cjs')
function mkTmpDir() {
return fs.mkdtempSync(path.join(os.tmpdir(), 'hermes-git-root-'))
}
test('gitRootForIpc returns null for invalid and device paths', async () => {
assert.equal(await gitRootForIpc(''), null)
assert.equal(await gitRootForIpc(' '), null)
assert.equal(await gitRootForIpc(null), null)
assert.equal(await gitRootForIpc('\\\\?\\C:\\secret'), null)
assert.equal(await gitRootForIpc('file:///%E0%A4%A'), null)
})
test('gitRootForIpc resolves directories files missing descendants and file URLs', async t => {
const root = mkTmpDir()
t.after(() => fs.rmSync(root, { recursive: true, force: true }))
const gitDir = path.join(root, '.git')
const srcDir = path.join(root, 'src')
const filePath = path.join(srcDir, 'index.ts')
fs.mkdirSync(gitDir)
fs.mkdirSync(srcDir)
fs.writeFileSync(filePath, 'export {}\n', 'utf8')
assert.equal(await gitRootForIpc(root), root)
assert.equal(await gitRootForIpc(srcDir), root)
assert.equal(await gitRootForIpc(filePath), root)
assert.equal(await gitRootForIpc(pathToFileURL(filePath).toString()), root)
assert.equal(await gitRootForIpc(path.join(srcDir, 'missing.ts')), root)
})

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@ -106,71 +106,155 @@ function sensitiveFileBlockReason(filePath) {
return null
}
function resolveRequestedFilePath(filePath, baseDir = process.cwd(), purpose = 'File read') {
const raw = String(filePath || '').trim()
function ipcPathError(code, message) {
const error = new Error(message)
error.code = code
return error
}
function rejectUnsafePathSyntax(filePath, purpose = 'File read') {
if (typeof filePath !== 'string') {
throw ipcPathError('invalid-path', `${purpose} failed: file path is required.`)
}
const raw = filePath.trim()
if (!raw) {
throw new Error(`${purpose} failed: file path is required.`)
throw ipcPathError('invalid-path', `${purpose} failed: file path is required.`)
}
if (raw.includes('\0')) {
throw new Error(`${purpose} failed: file path is invalid.`)
throw ipcPathError('invalid-path', `${purpose} failed: file path is invalid.`)
}
const normalized = raw.replace(/\\/g, '/').toLowerCase()
if (
normalized.startsWith('//?/') ||
normalized.startsWith('//./') ||
normalized.startsWith('globalroot/device/') ||
normalized.includes('/globalroot/device/')
) {
throw ipcPathError('device-path', `${purpose} blocked: Windows device paths are not allowed.`)
}
return raw
}
function resolveRequestedPathForIpc(filePath, options = {}) {
const purpose = String(options.purpose || 'File read')
const raw = rejectUnsafePathSyntax(filePath, purpose)
if (/^file:/i.test(raw)) {
let resolvedPath
try {
return fileURLToPath(raw)
const parsed = new URL(raw)
if (parsed.protocol !== 'file:') {
throw new Error('not a file URL')
}
resolvedPath = fileURLToPath(parsed)
} catch {
throw new Error(`${purpose} failed: file URL is invalid.`)
throw ipcPathError('invalid-path', `${purpose} failed: file URL is invalid.`)
}
rejectUnsafePathSyntax(resolvedPath, purpose)
return path.resolve(resolvedPath)
}
const resolvedBase = path.resolve(String(baseDir || process.cwd()))
return path.resolve(resolvedBase, raw)
const baseInput = typeof options.baseDir === 'string' && options.baseDir.trim() ? options.baseDir : process.cwd()
const safeBaseInput = rejectUnsafePathSyntax(baseInput, purpose)
const resolvedBase = path.resolve(safeBaseInput)
rejectUnsafePathSyntax(resolvedBase, purpose)
const resolvedPath = path.resolve(resolvedBase, raw)
rejectUnsafePathSyntax(resolvedPath, purpose)
return resolvedPath
}
async function statForIpc(fsImpl, resolvedPath, purpose, typeLabel) {
try {
return await fsImpl.promises.stat(resolvedPath)
} catch (error) {
const code = error && typeof error === 'object' ? error.code : ''
if (code === 'ENOENT' || code === 'ENOTDIR') {
throw ipcPathError(code || 'ENOENT', `${purpose} failed: ${typeLabel} does not exist.`)
}
throw ipcPathError(code || 'read-error', `${purpose} failed: ${error instanceof Error ? error.message : String(error)}`)
}
}
async function realpathForIpc(fsImpl, resolvedPath, purpose) {
if (typeof fsImpl.promises.realpath !== 'function') {
return resolvedPath
}
try {
const realPath = await fsImpl.promises.realpath(resolvedPath)
rejectUnsafePathSyntax(realPath, purpose)
return realPath
} catch (error) {
const code = error && typeof error === 'object' ? error.code : ''
throw ipcPathError(code || 'read-error', `${purpose} failed: ${error instanceof Error ? error.message : String(error)}`)
}
}
function rejectSensitiveFilePath(filePath, purpose) {
const blockReason = sensitiveFileBlockReason(filePath)
if (blockReason) {
throw ipcPathError('sensitive-file', `${purpose} blocked for sensitive file: ${blockReason}`)
}
}
async function resolveDirectoryForIpc(dirPath, options = {}) {
const purpose = String(options.purpose || 'Directory read')
const fsImpl = options.fs || fs
const resolvedPath = resolveRequestedPathForIpc(dirPath, { baseDir: options.baseDir, purpose })
const stat = await statForIpc(fsImpl, resolvedPath, purpose, 'directory')
if (!stat.isDirectory()) {
throw ipcPathError('ENOTDIR', `${purpose} failed: path is not a directory.`)
}
const realPath = await realpathForIpc(fsImpl, resolvedPath, purpose)
return { realPath, resolvedPath, stat }
}
async function resolveReadableFileForIpc(filePath, options = {}) {
const purpose = String(options.purpose || 'File read')
const resolvedPath = resolveRequestedFilePath(filePath, options.baseDir, purpose)
const fsImpl = options.fs || fs
const resolvedPath = resolveRequestedPathForIpc(filePath, { baseDir: options.baseDir, purpose })
if (options.blockSensitive !== false) {
const blockReason = sensitiveFileBlockReason(resolvedPath)
if (blockReason) {
throw new Error(`${purpose} blocked for sensitive file: ${blockReason}`)
}
rejectSensitiveFilePath(resolvedPath, purpose)
}
let stat
try {
stat = await fs.promises.stat(resolvedPath)
} catch (error) {
const code = error && typeof error === 'object' ? error.code : ''
if (code === 'ENOENT' || code === 'ENOTDIR') {
throw new Error(`${purpose} failed: file does not exist.`)
}
throw new Error(`${purpose} failed: ${error instanceof Error ? error.message : String(error)}`)
}
const stat = await statForIpc(fsImpl, resolvedPath, purpose, 'file')
if (stat.isDirectory()) {
throw new Error(`${purpose} failed: path points to a directory.`)
throw ipcPathError('EISDIR', `${purpose} failed: path points to a directory.`)
}
if (!stat.isFile()) {
throw new Error(`${purpose} failed: only regular files can be read.`)
throw ipcPathError('EINVAL', `${purpose} failed: only regular files can be read.`)
}
const realPath = await realpathForIpc(fsImpl, resolvedPath, purpose)
if (options.blockSensitive !== false) {
rejectSensitiveFilePath(realPath, purpose)
}
const maxBytes = Number.isFinite(options.maxBytes) && Number(options.maxBytes) > 0 ? Number(options.maxBytes) : null
if (maxBytes && stat.size > maxBytes) {
throw new Error(`${purpose} failed: file is too large (${stat.size} bytes; limit ${maxBytes} bytes).`)
throw ipcPathError('EFBIG', `${purpose} failed: file is too large (${stat.size} bytes; limit ${maxBytes} bytes).`)
}
try {
await fs.promises.access(resolvedPath, fs.constants.R_OK)
await fsImpl.promises.access(resolvedPath, fs.constants.R_OK)
} catch {
throw new Error(`${purpose} failed: file is not readable.`)
throw ipcPathError('EACCES', `${purpose} failed: file is not readable.`)
}
return { resolvedPath, stat }
return { realPath, resolvedPath, stat }
}
module.exports = {
@ -178,7 +262,10 @@ module.exports = {
DEFAULT_FETCH_TIMEOUT_MS,
TEXT_PREVIEW_SOURCE_MAX_BYTES,
encryptDesktopSecret,
rejectUnsafePathSyntax,
resolveDirectoryForIpc,
resolveReadableFileForIpc,
resolveRequestedPathForIpc,
resolveTimeoutMs,
sensitiveFileBlockReason
}

View file

@ -8,11 +8,20 @@ const { pathToFileURL } = require('node:url')
const {
DEFAULT_FETCH_TIMEOUT_MS,
encryptDesktopSecret,
resolveDirectoryForIpc,
resolveReadableFileForIpc,
resolveRequestedPathForIpc,
resolveTimeoutMs,
sensitiveFileBlockReason
} = require('./hardening.cjs')
async function rejectsWithCode(promise, code) {
await assert.rejects(promise, error => {
assert.equal(error?.code, code)
return true
})
}
test('resolveTimeoutMs falls back to defaults and accepts overrides', () => {
assert.equal(resolveTimeoutMs(undefined), DEFAULT_FETCH_TIMEOUT_MS)
assert.equal(resolveTimeoutMs(0), DEFAULT_FETCH_TIMEOUT_MS)
@ -51,6 +60,52 @@ test('sensitiveFileBlockReason blocks obvious secret file patterns', () => {
assert.match(String(sensitiveFileBlockReason('/tmp/server-cert.pem')), /\.pem/)
})
test('path helpers reject blank non-string NUL and Windows device syntax', async () => {
await rejectsWithCode(resolveReadableFileForIpc('', { purpose: 'File preview' }), 'invalid-path')
await rejectsWithCode(resolveReadableFileForIpc(' ', { purpose: 'File preview' }), 'invalid-path')
await rejectsWithCode(resolveReadableFileForIpc(null, { purpose: 'File preview' }), 'invalid-path')
await rejectsWithCode(resolveReadableFileForIpc(`safe${String.fromCharCode(0)}name.txt`), 'invalid-path')
const devicePaths = [
'\\\\?\\C:\\secret.txt',
'\\\\.\\C:\\secret.txt',
'\\\\?\\UNC\\server\\share\\secret.txt',
'GLOBALROOT/Device/HarddiskVolumeShadowCopy1/secret.txt'
]
for (const devicePath of devicePaths) {
assert.throws(
() => resolveRequestedPathForIpc(devicePath, { purpose: 'File preview' }),
error => {
assert.equal(error?.code, 'device-path')
return true
}
)
await rejectsWithCode(resolveReadableFileForIpc(devicePath, { purpose: 'File preview' }), 'device-path')
}
assert.throws(
() => resolveRequestedPathForIpc('file:///%E0%A4%A', { purpose: 'File preview' }),
error => {
assert.equal(error?.code, 'invalid-path')
return true
}
)
await rejectsWithCode(resolveReadableFileForIpc('file:///%E0%A4%A', { purpose: 'File preview' }), 'invalid-path')
})
test('resolveRequestedPathForIpc resolves relative paths from the trimmed base directory', () => {
const baseDir = path.join(os.tmpdir(), 'hermes-desktop-base')
assert.equal(
resolveRequestedPathForIpc('notes.txt', {
baseDir: ` ${baseDir} `,
purpose: 'File preview'
}),
path.resolve(baseDir, 'notes.txt')
)
})
test('resolveReadableFileForIpc validates existence type size and sensitivity', async t => {
const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'hermes-desktop-hardening-'))
t.after(() => fs.rmSync(tempDir, { recursive: true, force: true }))
@ -71,6 +126,13 @@ test('resolveReadableFileForIpc validates existence type size and sensitivity',
})
assert.equal(fromFileUrl.resolvedPath, textPath)
const spacedPath = path.join(tempDir, 'notes with spaces.txt')
fs.writeFileSync(spacedPath, 'space ok', 'utf8')
const fromSpacedFileUrl = await resolveReadableFileForIpc(pathToFileURL(spacedPath).toString(), {
purpose: 'File preview'
})
assert.equal(fromSpacedFileUrl.resolvedPath, spacedPath)
await assert.rejects(
resolveReadableFileForIpc('missing.txt', {
baseDir: tempDir,
@ -114,3 +176,91 @@ test('resolveReadableFileForIpc validates existence type size and sensitivity',
})
assert.equal(envTemplate.resolvedPath, envTemplatePath)
})
test('resolveReadableFileForIpc blocks common sensitive files', async t => {
const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'hermes-desktop-sensitive-'))
t.after(() => fs.rmSync(tempDir, { recursive: true, force: true }))
const sshDir = path.join(tempDir, '.ssh')
fs.mkdirSync(sshDir)
const blockedFiles = [
path.join(tempDir, '.env'),
path.join(tempDir, '.npmrc'),
path.join(sshDir, 'id_ed25519'),
path.join(tempDir, 'cert.pem'),
path.join(tempDir, 'cert.p12'),
path.join(tempDir, 'cert.pfx')
]
for (const filePath of blockedFiles) {
fs.writeFileSync(filePath, 'secret', 'utf8')
await rejectsWithCode(resolveReadableFileForIpc(filePath, { purpose: 'File preview' }), 'sensitive-file')
}
const allowed = path.join(tempDir, '.env.example')
fs.writeFileSync(allowed, 'EXAMPLE_TOKEN=value', 'utf8')
assert.equal((await resolveReadableFileForIpc(allowed, { purpose: 'File preview' })).resolvedPath, allowed)
})
test('resolveReadableFileForIpc blocks symlinks whose realpath is sensitive', async t => {
const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'hermes-desktop-realpath-'))
t.after(() => fs.rmSync(tempDir, { recursive: true, force: true }))
const envPath = path.join(tempDir, '.env')
const linkPath = path.join(tempDir, 'safe-name.txt')
fs.writeFileSync(envPath, 'SECRET_TOKEN=123', 'utf8')
try {
fs.symlinkSync(envPath, linkPath, 'file')
} catch (error) {
if (error?.code === 'EPERM' || error?.code === 'EACCES') {
t.skip(`symlink creation is not permitted on this platform (${error.code})`)
return
}
throw error
}
await rejectsWithCode(resolveReadableFileForIpc(linkPath, { purpose: 'File preview' }), 'sensitive-file')
})
test('resolveDirectoryForIpc accepts directories and rejects invalid directory targets', async t => {
const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'hermes-desktop-dir-'))
t.after(() => fs.rmSync(tempDir, { recursive: true, force: true }))
const directory = path.join(tempDir, 'project')
const filePath = path.join(tempDir, 'file.txt')
fs.mkdirSync(directory)
fs.writeFileSync(filePath, 'not a directory', 'utf8')
const resolved = await resolveDirectoryForIpc(directory)
assert.equal(resolved.resolvedPath, directory)
assert.equal(resolved.stat.isDirectory(), true)
await rejectsWithCode(resolveDirectoryForIpc(filePath), 'ENOTDIR')
await rejectsWithCode(resolveDirectoryForIpc(path.join(tempDir, 'missing')), 'ENOENT')
await rejectsWithCode(resolveDirectoryForIpc('\\\\?\\C:\\secret'), 'device-path')
})
test('resolveDirectoryForIpc accepts directory symlinks or junctions', async t => {
const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'hermes-desktop-dir-link-'))
t.after(() => fs.rmSync(tempDir, { recursive: true, force: true }))
const directory = path.join(tempDir, 'actual-project')
const linkPath = path.join(tempDir, 'linked-project')
fs.mkdirSync(directory)
try {
fs.symlinkSync(directory, linkPath, process.platform === 'win32' ? 'junction' : 'dir')
} catch (error) {
if (error?.code === 'EPERM' || error?.code === 'EACCES') {
t.skip(`directory symlink creation is not permitted on this platform (${error.code})`)
return
}
throw error
}
const resolved = await resolveDirectoryForIpc(linkPath)
assert.equal(resolved.resolvedPath, linkPath)
assert.equal(resolved.stat.isDirectory(), true)
})

View file

@ -22,7 +22,7 @@ const http = require('node:http')
const https = require('node:https')
const net = require('node:net')
const path = require('node:path')
const { fileURLToPath, pathToFileURL } = require('node:url')
const { pathToFileURL } = require('node:url')
const { execFileSync, spawn } = require('node:child_process')
const { detectRemoteDisplay, isWindowsBinaryPathInWsl, isWslEnvironment } = require('./bootstrap-platform.cjs')
const { runBootstrap } = require('./bootstrap-runner.cjs')
@ -31,6 +31,8 @@ const { canImportHermesCli, verifyHermesCli } = require('./backend-probes.cjs')
const { probeGatewayWebSocket } = require('./gateway-ws-probe.cjs')
const { serializeJsonBody, setJsonRequestHeaders } = require('./oauth-net-request.cjs')
const { fetchMarketplaceThemes, searchMarketplaceThemes } = require('./vscode-marketplace.cjs')
const { readDirForIpc } = require('./fs-read-dir.cjs')
const { gitRootForIpc } = require('./git-root.cjs')
const {
OFFICIAL_REPO_HTTPS_URL,
isOfficialSshRemote
@ -65,6 +67,7 @@ const {
TEXT_PREVIEW_SOURCE_MAX_BYTES,
encryptDesktopSecret: encryptDesktopSecretStrict,
resolveReadableFileForIpc,
resolveRequestedPathForIpc,
resolveTimeoutMs
} = require('./hardening.cjs')
@ -730,7 +733,7 @@ function openExternalUrl(rawUrl) {
if (parsed.protocol === 'file:') {
let localPath
try {
localPath = fileURLToPath(parsed.toString())
localPath = resolveRequestedPathForIpc(parsed.toString(), { purpose: 'Open external file' })
} catch {
return false
}
@ -2878,10 +2881,10 @@ async function resourceBufferFromUrl(rawUrl) {
const buffer = match[2] ? Buffer.from(encoded, 'base64') : Buffer.from(decodeURIComponent(encoded), 'utf8')
return { buffer, mimeType }
}
if (rawUrl.startsWith('file:')) {
const filePath = fileURLToPath(rawUrl)
const buffer = await fs.promises.readFile(filePath)
return { buffer, mimeType: mimeTypeForPath(filePath) }
if (/^file:/i.test(rawUrl)) {
const { resolvedPath } = await resolveReadableFileForIpc(rawUrl, { purpose: 'Image file' })
const buffer = await fs.promises.readFile(resolvedPath)
return { buffer, mimeType: mimeTypeForPath(resolvedPath) }
}
const parsed = new URL(rawUrl)
@ -2959,11 +2962,13 @@ function expandUserPath(filePath) {
return value
}
function previewFileTarget(rawTarget, baseDir) {
async function previewFileTarget(rawTarget, baseDir) {
const raw = String(rawTarget || '').trim()
const base = baseDir ? path.resolve(expandUserPath(baseDir)) : resolveHermesCwd()
const filePath = raw.startsWith('file:') ? fileURLToPath(raw) : path.resolve(base, expandUserPath(raw))
let resolved = filePath
let resolved = resolveRequestedPathForIpc(/^file:/i.test(raw) ? raw : expandUserPath(raw), {
baseDir: base,
purpose: 'Preview target'
})
if (directoryExists(resolved)) {
resolved = path.join(resolved, 'index.html')
@ -2974,6 +2979,8 @@ function previewFileTarget(rawTarget, baseDir) {
return null
}
;({ resolvedPath: resolved } = await resolveReadableFileForIpc(resolved, { purpose: 'Preview target' }))
const mimeType = mimeTypeForPath(resolved)
const metadata = previewFileMetadata(resolved, mimeType)
const isHtml = PREVIEW_HTML_EXTENSIONS.has(ext)
@ -3019,7 +3026,7 @@ function previewUrlTarget(rawTarget) {
}
}
function normalizePreviewTarget(rawTarget, baseDir) {
async function normalizePreviewTarget(rawTarget, baseDir) {
const raw = String(rawTarget || '').trim()
if (!raw) {
@ -3031,20 +3038,15 @@ function normalizePreviewTarget(rawTarget, baseDir) {
return previewUrlTarget(raw)
}
return previewFileTarget(raw, baseDir)
return await previewFileTarget(raw, baseDir)
} catch {
return null
}
}
function filePathFromPreviewUrl(rawUrl) {
const filePath = fileURLToPath(String(rawUrl || ''))
if (!fileExists(filePath)) {
throw new Error('Preview file is not readable')
}
return filePath
async function filePathFromPreviewUrl(rawUrl) {
const { resolvedPath } = await resolveReadableFileForIpc(String(rawUrl || ''), { purpose: 'Preview file' })
return resolvedPath
}
function sendPreviewFileChanged(payload) {
@ -3054,8 +3056,8 @@ function sendPreviewFileChanged(payload) {
webContents.send('hermes:preview-file-changed', payload)
}
function watchPreviewFile(rawUrl) {
const filePath = filePathFromPreviewUrl(rawUrl)
async function watchPreviewFile(rawUrl) {
const filePath = await filePathFromPreviewUrl(rawUrl)
const watchDir = path.dirname(filePath)
const targetName = path.basename(filePath)
const id = crypto.randomBytes(12).toString('base64url')
@ -5587,48 +5589,6 @@ ipcMain.handle('hermes:logs:reveal', async () => {
ipcMain.handle('hermes:logs:recent', async () => ({ path: DESKTOP_LOG_PATH, lines: hermesLog.slice(-200) }))
// Always-hidden noise (covers non-git projects too — gitignore would catch
// these anyway when present, but we want the same hygiene without one).
const FS_READDIR_HIDDEN = new Set([
'.git',
'.hg',
'.svn',
'.cache',
'.next',
'.turbo',
'.venv',
'__pycache__',
'build',
'dist',
'node_modules',
'target',
'venv'
])
function findGitRoot(start) {
let dir = start
for (let i = 0; i < 50; i += 1) {
try {
if (fs.existsSync(path.join(dir, '.git'))) {
return dir
}
} catch {
return null
}
const parent = path.dirname(dir)
if (parent === dir) {
return null
}
dir = parent
}
return null
}
function isExecutableFile(filePath) {
if (!filePath || !path.isAbsolute(filePath)) {
return false
@ -5811,46 +5771,9 @@ function disposeTerminalSession(id) {
return true
}
ipcMain.handle('hermes:fs:readDir', async (_event, dirPath) => {
const resolved = path.resolve(String(dirPath || ''))
ipcMain.handle('hermes:fs:readDir', async (_event, dirPath) => readDirForIpc(dirPath))
if (!resolved) {
return { entries: [], error: 'invalid-path' }
}
try {
const dirents = await fs.promises.readdir(resolved, { withFileTypes: true })
const entries = dirents
.filter(d => {
if (FS_READDIR_HIDDEN.has(d.name)) {
return false
}
return true
})
.map(d => ({ name: d.name, path: path.join(resolved, d.name), isDirectory: d.isDirectory() }))
.sort((a, b) => Number(b.isDirectory) - Number(a.isDirectory) || a.name.localeCompare(b.name))
return { entries }
} catch (error) {
return { entries: [], error: error?.code || 'read-error' }
}
})
ipcMain.handle('hermes:fs:gitRoot', async (_event, startPath) => {
const input = String(startPath || '')
const resolved = input.startsWith('file:') ? fileURLToPath(input) : path.resolve(input)
try {
const stat = await fs.promises.stat(resolved)
const start = stat.isDirectory() ? resolved : path.dirname(resolved)
return findGitRoot(start)
} catch {
return findGitRoot(resolved)
}
})
ipcMain.handle('hermes:fs:gitRoot', async (_event, startPath) => gitRootForIpc(startPath))
ipcMain.handle('hermes:terminal:start', async (event, payload = {}) => {
if (!nodePty) {

View file

@ -35,7 +35,7 @@
"test:desktop:nsis": "node scripts/test-desktop.mjs nsis",
"test:desktop:existing": "node scripts/test-desktop.mjs existing",
"test:desktop:fresh": "node scripts/test-desktop.mjs fresh",
"test:desktop:platforms": "node --test electron/bootstrap-platform.test.cjs electron/hardening.test.cjs electron/backend-probes.test.cjs electron/bootstrap-runner.test.cjs electron/connection-config.test.cjs electron/gateway-ws-probe.test.cjs electron/oauth-net-request.test.cjs electron/desktop-uninstall.test.cjs electron/session-windows.test.cjs electron/workspace-cwd.test.cjs electron/windows-child-process.test.cjs electron/update-remote.test.cjs",
"test:desktop:platforms": "node --test electron/bootstrap-platform.test.cjs electron/hardening.test.cjs electron/backend-probes.test.cjs electron/bootstrap-runner.test.cjs electron/connection-config.test.cjs electron/gateway-ws-probe.test.cjs electron/oauth-net-request.test.cjs electron/desktop-uninstall.test.cjs electron/session-windows.test.cjs electron/workspace-cwd.test.cjs electron/fs-read-dir.test.cjs electron/git-root.test.cjs electron/windows-child-process.test.cjs electron/update-remote.test.cjs",
"typecheck": "tsc -p . --noEmit",
"lint": "eslint src/ electron/",
"lint:fix": "eslint src/ electron/ --fix",

View file

@ -0,0 +1,100 @@
/// <reference types="node" />
import { Buffer } from 'node:buffer'
import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
import type { HermesReadDirEntry, HermesReadDirResult } from '@/global'
import { clearProjectDirCache, readProjectDir } from './ipc'
const readDir = vi.fn<(path: string) => Promise<HermesReadDirResult>>()
const readFileDataUrl = vi.fn<(path: string) => Promise<string>>()
const gitRoot = vi.fn<(path: string) => Promise<string | null>>()
function ok(entries: HermesReadDirEntry[]): HermesReadDirResult {
return { entries }
}
function dataUrl(text: string) {
return `data:text/plain;base64,${Buffer.from(text, 'utf8').toString('base64')}`
}
function installBridge() {
;(
window as unknown as {
hermesDesktop: {
gitRoot: typeof gitRoot
readDir: typeof readDir
readFileDataUrl: typeof readFileDataUrl
}
}
).hermesDesktop = { gitRoot, readDir, readFileDataUrl }
}
describe('readProjectDir', () => {
beforeEach(() => {
clearProjectDirCache()
readDir.mockReset()
readFileDataUrl.mockReset()
gitRoot.mockReset()
installBridge()
})
afterEach(() => {
clearProjectDirCache()
delete (window as unknown as { hermesDesktop?: unknown }).hermesDesktop
})
it('returns no-bridge when the desktop bridge is unavailable', async () => {
delete (window as unknown as { hermesDesktop?: unknown }).hermesDesktop
await expect(readProjectDir('/repo')).resolves.toEqual({ entries: [], error: 'no-bridge' })
})
it('filters gitignored entries when readDir returns Windows-style paths', async () => {
gitRoot.mockResolvedValue('C:\\repo')
readDir.mockImplementation(async path => {
if (path === 'C:\\repo\\src') {
return ok([
{ name: 'debug.log', path: 'C:\\repo\\src\\debug.log', isDirectory: false },
{ name: '临时.txt', path: 'C:\\repo\\src\\临时.txt', isDirectory: false },
{ name: 'keep.ts', path: 'C:\\repo\\src\\keep.ts', isDirectory: false }
])
}
if (path === 'C:/repo') {
return ok([{ name: '.gitignore', path: 'C:/repo/.gitignore', isDirectory: false }])
}
if (path === 'C:/repo/src') {
return ok([])
}
return ok([])
})
readFileDataUrl.mockResolvedValue(dataUrl('# Unicode 路径规则\nsrc/*.log\nsrc/临时.txt\n'))
const result = await readProjectDir('C:\\repo\\src', 'C:\\repo')
expect(result.entries.map(entry => entry.name)).toEqual(['keep.ts'])
expect(gitRoot).toHaveBeenCalledWith('C:/repo')
expect(readFileDataUrl).toHaveBeenCalledWith('C:/repo/.gitignore')
})
it('does not fetch .gitignore contents when listings do not contain .gitignore', async () => {
gitRoot.mockResolvedValue('/repo')
readDir.mockImplementation(async path => {
if (path === '/repo/src') {
return ok([{ name: 'debug.log', path: '/repo/src/debug.log', isDirectory: false }])
}
return ok([])
})
const result = await readProjectDir('/repo/src', '/repo')
expect(result.entries.map(entry => entry.name)).toEqual(['debug.log'])
expect(readFileDataUrl).not.toHaveBeenCalled()
})
})

View file

@ -27,7 +27,7 @@ function decodeDataUrl(dataUrl: string) {
}
function clean(path: string) {
return path.replace(/\/+$/, '') || '/'
return path.replace(/\\/g, '/').replace(/\/+$/, '') || '/'
}
/** Strict POSIX-style relative path; null if `child` is not inside `root`. */

View file

@ -145,7 +145,8 @@ function ProjectTreeRow({
}
const isFolder = node.data.isDirectory
const isPlaceholder = node.data.id.endsWith('::__loading__')
const isPlaceholder = Boolean(node.data.placeholder)
const isErrorPlaceholder = node.data.placeholder === 'error'
return (
<div
@ -210,8 +211,10 @@ function ProjectTreeRow({
)}
{!isFolder && <span aria-hidden className="w-3 shrink-0" />}
<span aria-hidden className="flex w-3.5 items-center justify-center text-(--ui-text-tertiary)">
{isPlaceholder ? (
{isPlaceholder && !isErrorPlaceholder ? (
<Codicon name="loading" size="0.75rem" spinning />
) : isErrorPlaceholder ? (
<Codicon name="warning" size="0.75rem" />
) : isFolder ? (
<Codicon name={node.isOpen ? 'folder-opened' : 'folder'} size="0.875rem" />
) : (

View file

@ -106,7 +106,7 @@ describe('useProjectTree', () => {
expect(readDir).toHaveBeenCalledTimes(1)
})
it('captures per-folder error code and leaves the folder expandable but empty', async () => {
it('captures per-folder error code and shows an error placeholder child', async () => {
readDir.mockResolvedValueOnce(ok([{ name: 'priv', path: '/p/priv', isDirectory: true }]))
readDir.mockResolvedValueOnce({ entries: [], error: 'EACCES' })
@ -119,7 +119,14 @@ describe('useProjectTree', () => {
})
expect(result.current.data[0].error).toBe('EACCES')
expect(result.current.data[0].children).toEqual([])
expect(result.current.data[0].children).toEqual([
{
id: '/p/priv::__error__',
isDirectory: false,
name: 'Unable to read (EACCES)',
placeholder: 'error'
}
])
})
it('dedupes concurrent loadChildren calls for the same id', async () => {

View file

@ -14,11 +14,14 @@ export interface TreeNode {
children?: TreeNode[]
/** True while a readDir for this folder is in flight. */
loading?: boolean
/** Synthetic loading/error rows are not real filesystem entries. */
placeholder?: 'error' | 'loading'
/** Last error code from readDir (e.g. EACCES). Cleared on next successful load. */
error?: string
}
const PLACEHOLDER_ID = '__loading__'
const ERROR_PLACEHOLDER_ID = '__error__'
function makeNode(path: string, name: string, isDirectory: boolean): TreeNode {
return { id: path, isDirectory, name }
@ -43,7 +46,16 @@ function patchNode(nodes: TreeNode[] | undefined | null, id: string, patch: (n:
}
function placeholderChild(parentId: string): TreeNode {
return { id: `${parentId}::${PLACEHOLDER_ID}`, isDirectory: false, name: 'Loading…' }
return { id: `${parentId}::${PLACEHOLDER_ID}`, isDirectory: false, name: 'Loading…', placeholder: 'loading' }
}
function errorChild(parentId: string, error: string | undefined): TreeNode {
return {
id: `${parentId}::${ERROR_PLACEHOLDER_ID}`,
isDirectory: false,
name: `Unable to read (${error || 'read-error'})`,
placeholder: 'error'
}
}
export interface UseProjectTreeResult {
@ -227,7 +239,7 @@ export function useProjectTree(cwd: string): UseProjectTreeResult {
...n,
loading: false,
error: error || undefined,
children: error ? [] : entries.map(e => makeNode(e.path, e.name, e.isDirectory))
children: error ? [errorChild(n.id, error)] : entries.map(e => makeNode(e.path, e.name, e.isDirectory))
}))
}
})