feat: close iOS/Android platform parity gaps (#368)

.maestro/flows/_assets-test.yaml

@@ -2,29 +2,20 @@ appId: ${APP_ID}
 ---
 - runFlow:
     when:
-      notVisible: "Assets (Android)"
+      notVisible: "Bundled Assets"
     commands:
       - tapOn: "Playground"
 - scrollUntilVisible:
     element:
-      text: "Assets (Android)"
+      text: "Bundled Assets"
     direction: DOWN
-- tapOn: "Assets (Android)"
-- runFlow:
-    when:
-      visible: "Not Supported"
-    commands:
-      - assertVisible: "Not Supported"
-- runFlow:
-    when:
-      visible: "Android Assets Demo"
-    commands:
-      - assertVisible: "Android Assets Demo"
-      - tapOn: "Unzip Assets"
-      - waitForAnimationToEnd:
-          timeout: 10000
-      - assertVisible: "Extracted To"
-      - extendedWaitUntil:
-          visible: "Files:"
-          timeout: 10000
-      - assertVisible: "Files:"
+- tapOn: "Bundled Assets"
+- assertVisible: "Bundled Assets Demo"
+- tapOn: "Unzip Assets"
+- waitForAnimationToEnd:
+    timeout: 10000
+- assertVisible: "Extracted To"
+- extendedWaitUntil:
+    visible: "Files:"
+    timeout: 10000
+- assertVisible: "Files:"

.maestro/flows/_home-check.yaml

@@ -2,7 +2,16 @@ appId: ${APP_ID}
 ---
 - assertVisible: "Zip Operations"
 - assertVisible: "Unzip Operations"
+- assertVisible: "List & Selective Extract"
+- scrollUntilVisible:
+    element:
+      text: "Password Protection"
+    direction: DOWN
 - assertVisible: "Password Protection"
+- scrollUntilVisible:
+    element:
+      text: "Progress Events"
+    direction: DOWN
 - assertVisible: "Progress Events"
 - scrollUntilVisible:
     element:

.maestro/flows/_list-contents-test.yaml

@@ -0,0 +1,56 @@
+appId: ${APP_ID}
+---
+- runFlow:
+    when:
+      notVisible: "List & Selective Extract"
+    commands:
+      - tapOn: "Playground"
+- scrollUntilVisible:
+    element:
+      text: "List & Selective Extract"
+    direction: DOWN
+- tapOn: "List & Selective Extract"
+- extendedWaitUntil:
+    visible: "Create Zip and List Contents"
+    timeout: 15000
+- tapOn: "Create Zip and List Contents"
+- extendedWaitUntil:
+    visible: "Listed Entries"
+    timeout: 20000
+- assertVisible: "Listed Entries"
+- scrollUntilVisible:
+    element:
+      text: "Contains hello.txt"
+    direction: DOWN
+    timeout: 10000
+- assertVisible: "Contains hello.txt"
+- assertVisible: "Contains readme.md"
+- scrollUntilVisible:
+    element:
+      text: "Extract Selected Entries"
+    direction: DOWN
+- tapOn: "Extract Selected Entries"
+- extendedWaitUntil:
+    visible: "Selective Extract"
+    timeout: 20000
+- assertVisible: "Selective Extract"
+- scrollUntilVisible:
+    element:
+      text: "Extracted docs/guide.md"
+    direction: DOWN
+    timeout: 10000
+- assertVisible: "Extracted readme.md"
+- assertVisible: "Extracted docs/guide.md"
+- assertVisible: "Skipped hello.txt"
+- scrollUntilVisible:
+    element:
+      text: "Password Selective Extract"
+    direction: DOWN
+- tapOn: "Password Selective Extract"
+- extendedWaitUntil:
+    visible: "Password Selective Extract Done"
+    timeout: 30000
+- assertVisible: "Password Selective Extract Done"
+- assertVisible: "Extracted readme.md"
+- assertVisible: "Skipped hello.txt"
+- back

.maestro/flows/ci-master.yaml

@@ -4,6 +4,7 @@ appId: ${APP_ID}
 - runFlow: _home-check.yaml
 - runFlow: _zip-test.yaml
 - runFlow: _unzip-test.yaml
+- runFlow: _list-contents-test.yaml
 - runFlow: _password-test.yaml
 - runFlow: _progress-test.yaml
 - runFlow: _assets-test.yaml

.maestro/flows/list-contents.yaml

@@ -0,0 +1,4 @@
+appId: ${APP_ID}
+---
+- runFlow: _setup.yaml
+- runFlow: _list-contents-test.yaml

CHANGELOG.md

@@ -1,5 +1,39 @@
 # Changelog
 
+## [9.4.0] - 2026-07-25
+
+### Added
+- iOS: `unzipAssets` reads archives from the main app bundle (parity with Android `assets/`) (#368)
+- iOS: preserve empty directories when zipping directory items in a files array (#368)
+
+### Changed
+- iOS: non-UTF-8 `charset` arguments now reject with `ERR_UNSUPPORTED` instead of being silently ignored (#368)
+- iOS: `getUncompressedSize` rejects on failure (previously resolved `-1`) for parity with Android
+
+## [9.3.0] - 2026-07-25
+
+### Fixed
+- iOS: `zipFilesWithPassword` now honors `encryptionType` — `'STANDARD'` uses ZipCrypto instead of always writing WinZip-AES (improves server-side unzip with Node/Java tools) (#367, #333, #323)
+- iOS: fsync zip output after successful `zip` / `zipWithPassword` so immediate uploads/reads see full bytes (#367)
+- iOS: file-array `zip` / `zipWithPassword` now apply the requested compression level (previously always `Z_DEFAULT_COMPRESSION`)
+
+### Added
+- `scripts/validate-zip-header.js` — checks local-file and EOCD signatures for interoperability smoke tests
+- README guidance for server-side unzip compatibility
+
+## [9.2.0] - 2026-07-25
+
+### Added
+- `cancel()` — best-effort abort of the in-flight zip/unzip operation; rejects with `ERR_CANCELLED` (#366)
+- Stable cross-platform error codes (`ERR_FILE_NOT_FOUND`, `ERR_WRONG_PASSWORD`, `ERR_UNSAFE_PATH`, …) and JS `ErrorCodes` map (#366)
+
+## [9.1.0] - 2026-07-25
+
+### Added
+- `listContents(source, charset?)` — inspect archive entries (path, sizes, directory/encrypted flags) without extracting (#365)
+- Optional `entries` on `unzip` / `unzipWithPassword` — extract only selected entry paths; directory names include nested children (#365)
+- Android unit tests for selective-extract entry matching
+
 ## [9.0.2] - 2026-07-22
 
 ### Fixed

README.md

@@ -38,10 +38,13 @@ import {
   zipWithPassword,
   unzip,
   unzipWithPassword,
+  listContents,
   unzipAssets,
+  cancel,
   subscribe,
   isPasswordProtected,
   getUncompressedSize,
+  ErrorCodes,
   DEFAULT_COMPRESSION,
   NO_COMPRESSION,
   BEST_SPEED,
@@ -104,11 +107,23 @@ zipWithPassword(sourcePath, targetPath, 'password', 'STANDARD')
   .catch((error) => console.error(error))
 ```
 
-### `unzip(source: string, target: string, charset?: string): Promise<string>`
+### `unzip(source: string, target: string, charset?: string | string[], entries?: string[]): Promise<string>`
 
-Unzip from source to target.
+Unzip from source to target. Pass `entries` to extract only those paths; directory names match that entry and all nested children (e.g. `'docs'` extracts `docs/` and `docs/readme.md`).
 
-> The `charset` parameter is only supported on Android (default: `UTF-8`). On iOS it is ignored.
+You can pass entries as the third argument when using the default charset:
+
+```js
+unzip(sourcePath, targetPath, ['readme.md', 'docs'])
+```
+
+Or with an explicit charset:
+
+```js
+unzip(sourcePath, targetPath, 'UTF-8', ['readme.md', 'docs'])
+```
+
+> The `charset` parameter defaults to `UTF-8`. On Android, other charsets are supported. On iOS, non-UTF-8 values reject with `ERR_UNSUPPORTED`.
 
 ```js
 const sourcePath = `${DocumentDirectoryPath}/myFile.zip`
@@ -119,21 +134,54 @@ unzip(sourcePath, targetPath, 'UTF-8')
   .catch((error) => console.error(error))
 ```
 
-### `unzipWithPassword(source: string, target: string, password: string): Promise<string>`
+### `unzipWithPassword(source: string, target: string, password: string, entries?: string[]): Promise<string>`
 
-Unzip a password-protected archive.
+Unzip a password-protected archive. Pass `entries` to extract only those paths.
 
 ```js
 unzipWithPassword(sourcePath, targetPath, 'password')
   .then((path) => console.log(`unzip completed at ${path}`))
   .catch((error) => console.error(error))
+
+unzipWithPassword(sourcePath, targetPath, 'password', ['secret.txt'])
+  .then((path) => console.log(`selective unzip completed at ${path}`))
+  .catch((error) => console.error(error))
+```
+
+### `listContents(source: string, charset?: string): Promise<ZipEntry[]>`
+
+List archive entries without extracting.
+
+```ts
+type ZipEntry = {
+  path: string
+  size: number           // uncompressed size in bytes
+  compressedSize: number
+  isDirectory: boolean
+  isEncrypted: boolean
+}
+```
+
+> The `charset` parameter defaults to `UTF-8`. On Android, other charsets are supported. On iOS, non-UTF-8 values reject with `ERR_UNSUPPORTED`.
+
+```js
+listContents(sourcePath)
+  .then((entries) => {
+    entries.forEach((entry) => {
+      console.log(entry.path, entry.size, entry.isDirectory)
+    })
+  })
+  .catch((error) => console.error(error))
 ```
 
 ### `unzipAssets(assetPath: string, target: string): Promise<string>`
 
-Unzip a file from the Android `assets` folder. **Android only.**
+Unzip a bundled archive.
+
+- **Android:** relative path inside the APK `assets/` folder (also accepts `content://` URIs).
+- **iOS:** relative path inside the main app bundle (e.g. a file copied with Xcode “Copy Bundle Resources”).
 
-`assetPath` is the relative path inside the pre-bundled assets folder (e.g. `folder/myFile.zip`). Do not pass an absolute path.
+Do not pass an absolute filesystem path.
 
 ```js
 unzipAssets('./myFile.zip', DocumentDirectoryPath)
@@ -153,6 +201,39 @@ getUncompressedSize(sourcePath)
   .catch((error) => console.error(error))
 ```
 
+### `cancel(): Promise<void>`
+
+Cancel the in-flight zip/unzip operation (best-effort). The active operation's promise rejects with `ErrorCodes.CANCELLED` (`ERR_CANCELLED`).
+
+```js
+const unzipPromise = unzip(sourcePath, targetPath)
+cancel()
+unzipPromise.catch((error) => {
+  if (error.code === ErrorCodes.CANCELLED) {
+    console.log('unzip cancelled')
+  }
+})
+```
+
+### Error codes
+
+Native rejections use stable `error.code` values on both platforms:
+
+| Code | When |
+|------|------|
+| `ERR_FILE_NOT_FOUND` | Source missing |
+| `ERR_INVALID_PATH` | Bad / null path |
+| `ERR_INVALID_ARGS` | Empty password, empty entries, etc. |
+| `ERR_WRONG_PASSWORD` | Password decrypt failed |
+| `ERR_NOT_PASSWORD_PROTECTED` | Password API used on a plain archive |
+| `ERR_CORRUPT_ARCHIVE` | Not a zip / truncated / unreadable |
+| `ERR_UNSAFE_PATH` | Zip Slip / path traversal |
+| `ERR_CANCELLED` | `cancel()` interrupted the operation |
+| `ERR_ZIP` / `ERR_UNZIP` | Generic zip/unzip failure |
+| `ERR_UNSUPPORTED` | API not available on this platform |
+
+Also exported as the `ErrorCodes` constant map.
+
 ### `subscribe(callback: ({ progress: number, filePath: string }) => void): EmitterSubscription`
 
 Subscribe to progress events. Useful for showing a progress bar.
@@ -184,22 +265,38 @@ useEffect(() => {
 | Feature | iOS | Android | Notes |
 |---------|-----|---------|-------|
 | `zip` (folder) | ✅ | ✅ | — |
-| `zip` (files array) | ✅ | ✅ | Compression level ignored on iOS |
-| `zipWithPassword` (folder) | ✅ | ✅ | AES encryption supported |
-| `zipWithPassword` (files array) | ⚠️ | ✅ | iOS: only `STANDARD` encryption |
-| `unzip` | ✅ | ✅ | Charset ignored on iOS |
-| `unzipWithPassword` | ✅ | ✅ | — |
-| `unzipAssets` | ❌ | ✅ | Android only |
+| `zip` (files array) | ✅ | ✅ | — |
+| `zipWithPassword` (folder) | ✅ | ✅ | Prefer `STANDARD` for server unzip |
+| `zipWithPassword` (files array) | ✅ | ✅ | iOS honors `STANDARD` vs AES |
+| `unzip` | ✅ | ✅ | Optional `entries`; non-UTF-8 charset → `ERR_UNSUPPORTED` on iOS |
+| `unzipWithPassword` | ✅ | ✅ | Optional `entries` for selective extract |
+| `listContents` | ✅ | ✅ | Non-UTF-8 charset → `ERR_UNSUPPORTED` on iOS |
+| `unzipAssets` | ✅ | ✅ | Android `assets/` (+ `content://`); iOS main bundle |
+| `cancel` | ✅ | ✅ | Best-effort mid-operation abort |
 | `isPasswordProtected` | ✅ | ✅ | — |
-| `getUncompressedSize` | ✅ | ✅ | Charset ignored on iOS |
+| `getUncompressedSize` | ✅ | ✅ | Non-UTF-8 charset → `ERR_UNSUPPORTED` on iOS |
 | Progress Events | ✅ | ✅ | File path empty on iOS for zip |
 
 ### Cross-Platform Notes
 
-- **Compression levels:** Android supports 0–9 for all operations. iOS supports them only for folder operations.
-- **Encryption:** Android supports AES-128, AES-256, and Standard ZIP encryption for all operations. iOS supports AES and Standard for folders, but only Standard for file arrays.
-- **Charset:** Android supports custom charsets (default UTF-8). iOS always uses UTF-8.
-- **unzipAssets:** Supports `assets/` folder and `content://` URIs on Android. Not supported on iOS.
+- **Compression levels:** Android supports 0–9 for all operations. iOS supports 0–9 for folder and file-array zips.
+- **Encryption:** Android supports AES-128, AES-256, and Standard ZIP encryption for all operations. On iOS, pass `'STANDARD'` (default) for ZipCrypto archives that Node `unzipper` / Java `ZipInputStream` can read; `'AES-128'` / `'AES-256'` produce WinZip-AES archives that many server tools cannot open.
+- **Charset:** Android supports custom charsets (default UTF-8). iOS accepts only UTF-8; other values reject with `ERR_UNSUPPORTED`.
+- **unzipAssets:** Android reads `assets/` (and `content://`). iOS reads from the main app bundle using the same relative path.
+- **Empty directories:** Preserved when zipping directory contents via a files/folders array on both platforms.
+
+### Server-side unzip interoperability
+
+Plain (non-AES) zips created on iOS and Android are intended to open with common server unzippers (`unzip`, Node `unzipper`, Java `ZipInputStream`). Practical tips:
+
+- Prefer `zip(...)` or `zipWithPassword(..., 'STANDARD')` when the archive will be extracted off-device.
+- Avoid AES password zips if the consumer is stock Java/`unzipper` — use `'STANDARD'` instead.
+- Decode URL-encoded paths (`decodeURIComponent`) before passing them in; `%20` in paths has been mistaken for corrupt archives (#333).
+- After upgrading, you can sanity-check a produced file with:
+
+```bash
+node scripts/validate-zip-header.js /path/to/archive.zip
+```
 
 ## Expo
 

RNZipArchive.podspec

@@ -19,6 +19,9 @@ Pod::Spec.new do |s|
     s.dependency 'React-Core'
   end
   s.dependency 'SSZipArchive', '~>2.5.5'
+  s.pod_target_xcconfig = {
+    'HEADER_SEARCH_PATHS' => '$(inherited) "$(PODS_ROOT)/SSZipArchive" "$(PODS_ROOT)/SSZipArchive/SSZipArchive/minizip"'
+  }
 
   s.source_files = 'ios/*.{h,m,mm}'
   s.public_header_files = ['ios/RNZipArchive.h']

__mocks__/react-native.js

@@ -6,9 +6,21 @@ const mockRNZipArchive = {
   zipFilesWithPassword: jest.fn(() => Promise.resolve('/mock/path.zip')),
   unzip: jest.fn(() => Promise.resolve('/mock/dest')),
   unzipWithPassword: jest.fn(() => Promise.resolve('/mock/dest')),
+  listContents: jest.fn(() =>
+    Promise.resolve([
+      {
+        path: 'hello.txt',
+        size: 12,
+        compressedSize: 10,
+        isDirectory: false,
+        isEncrypted: false,
+      },
+    ])
+  ),
   unzipAssets: jest.fn(() => Promise.resolve('/mock/dest')),
   isPasswordProtected: jest.fn(() => Promise.resolve(true)),
   getUncompressedSize: jest.fn(() => Promise.resolve(1024)),
+  cancel: jest.fn(() => Promise.resolve()),
   addListener: jest.fn(),
   removeListeners: jest.fn(),
 };