Improve PathUtils.getFullPathFromTreeUri()
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@ -100,42 +100,6 @@ object PathUtils {
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return "Android/data/${context.packageName}/"
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return "Android/data/${context.packageName}/"
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}
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}
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private fun getExternalStoragePath(context: Context, name: String): String? {
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for (dir in ContextCompat.getExternalFilesDirs(context, null)) {
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Log.d(PATH_RESOLVER_TAG, "External dir: $dir")
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if (Environment.isExternalStorageRemovable(dir)) {
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Log.d(PATH_RESOLVER_TAG, "isExternalStorageRemovable")
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val path = dir.path.split("/Android")[0]
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if (File(path).name == name) {
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return path
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}
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}
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}
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Log.d(PATH_RESOLVER_TAG, "getExternalFilesDirs failed")
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// Don't risk to be killed by SELinux on newer Android versions
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if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.Q) {
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try {
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val process = ProcessBuilder("mount").redirectErrorStream(true).start().apply { waitFor() }
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process.inputStream.readBytes().decodeToString().split("\n").forEach { line ->
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if (line.startsWith("/dev/block/vold")) {
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Log.d(PATH_RESOLVER_TAG, "mount: $line")
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val fields = line.split(" ")
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if (fields.size >= 3) {
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val path = fields[2]
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if (File(path).name == name) {
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return path
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}
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}
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}
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}
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} catch (e: Exception) {
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e.printStackTrace()
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}
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Log.d(PATH_RESOLVER_TAG, "mount processing failed")
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}
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return null
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}
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private fun getExternalStoragesPaths(context: Context): List<String> {
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private fun getExternalStoragesPaths(context: Context): List<String> {
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val externalPaths: MutableList<String> = ArrayList()
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val externalPaths: MutableList<String> = ArrayList()
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ContextCompat.getExternalFilesDirs(context, null).forEach {
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ContextCompat.getExternalFilesDirs(context, null).forEach {
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@ -156,21 +120,17 @@ object PathUtils {
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return false
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return false
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}
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}
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private const val PRIMARY_VOLUME_NAME = "primary"
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fun getFullPathFromTreeUri(treeUri: Uri, context: Context): String? {
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fun getFullPathFromTreeUri(treeUri: Uri, context: Context): String? {
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Log.d(PATH_RESOLVER_TAG, "treeUri: $treeUri")
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if ("content".equals(treeUri.scheme, ignoreCase = true)) {
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if ("content".equals(treeUri.scheme, ignoreCase = true)) {
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val vId = getVolumeIdFromTreeUri(treeUri)
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val docId = DocumentsContract.getTreeDocumentId(treeUri)
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Log.d(PATH_RESOLVER_TAG, "Volume Id: $vId")
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Log.d(PATH_RESOLVER_TAG, "Document Id: $docId")
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var volumePath = getVolumePath(vId ?: return null, context)
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val split: Array<String?> = docId.split(":").toTypedArray()
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val volumeId = if (split.isNotEmpty()) split[0] else null
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Log.d(PATH_RESOLVER_TAG, "Volume Id: $volumeId")
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val volumePath = getVolumePath(volumeId ?: return null, context)
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Log.d(PATH_RESOLVER_TAG, "Volume Path: $volumePath")
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Log.d(PATH_RESOLVER_TAG, "Volume Path: $volumePath")
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if (volumePath == null) {
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val documentPath = if (split.size >= 2 && split[1] != null) split[1]!! else File.separator
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volumePath = if (vId == "primary") {
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Environment.getExternalStorageDirectory().path
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} else {
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getExternalStoragePath(context, vId) ?: "/storage/$vId"
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}
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}
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val documentPath = getDocumentPathFromTreeUri(treeUri)!!
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Log.d(PATH_RESOLVER_TAG, "Document Path: $documentPath")
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Log.d(PATH_RESOLVER_TAG, "Document Path: $documentPath")
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return if (documentPath.isNotEmpty()) {
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return if (documentPath.isNotEmpty()) {
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pathJoin(volumePath!!, documentPath)
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pathJoin(volumePath!!, documentPath)
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@ -181,39 +141,92 @@ object PathUtils {
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return null
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return null
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}
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}
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private const val PRIMARY_VOLUME_NAME = "primary"
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private fun getVolumePath(volumeId: String, context: Context): String? {
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private fun getVolumePath(volumeId: String, context: Context): String? {
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return try {
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if (volumeId == PRIMARY_VOLUME_NAME) {
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val mStorageManager = context.getSystemService(Context.STORAGE_SERVICE) as StorageManager
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// easy case
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val storageVolumeClazz = Class.forName("android.os.storage.StorageVolume")
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return Environment.getExternalStorageDirectory().path
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val getVolumeList = mStorageManager.javaClass.getMethod("getVolumeList")
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val getUuid = storageVolumeClazz.getMethod("getUuid")
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val getPath = storageVolumeClazz.getMethod("getPath")
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val isPrimary = storageVolumeClazz.getMethod("isPrimary")
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val result = getVolumeList.invoke(mStorageManager)
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val length = java.lang.reflect.Array.getLength(result!!)
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for (i in 0 until length) {
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val storageVolumeElement = java.lang.reflect.Array.get(result, i)
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val uuid = getUuid.invoke(storageVolumeElement)
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val primary = isPrimary.invoke(storageVolumeElement) as Boolean
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if (primary && PRIMARY_VOLUME_NAME == volumeId) return getPath.invoke(storageVolumeElement) as String
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if (uuid == volumeId) return getPath.invoke(storageVolumeElement) as String
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}
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null
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} catch (ex: Exception) {
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null
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}
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}
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}
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// external storage
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// First strategy: StorageManager.getStorageVolumes()
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private fun getVolumeIdFromTreeUri(treeUri: Uri): String? {
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val storageManager = context.getSystemService(Context.STORAGE_SERVICE) as StorageManager
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val docId = DocumentsContract.getTreeDocumentId(treeUri)
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
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val split = docId.split(":").toTypedArray()
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// API is public on Android 11 and higher
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return if (split.isNotEmpty()) split[0] else null
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storageManager.storageVolumes.forEach { storage ->
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}
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Log.d(PATH_RESOLVER_TAG, "StorageVolume: ${storage.uuid} ${storage.directory}")
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if (volumeId.contentEquals(storage.uuid, true)) {
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private fun getDocumentPathFromTreeUri(treeUri: Uri): String? {
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storage.directory?.let {
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val docId = DocumentsContract.getTreeDocumentId(treeUri)
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return it.absolutePath
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val split: Array<String?> = docId.split(":").toTypedArray()
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}
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return if (split.size >= 2 && split[1] != null) split[1] else File.separator
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}
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}
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Log.d(PATH_RESOLVER_TAG, "StorageManager failed")
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} else {
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// Before Android 11, we try reflection
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try {
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val storageVolumeClazz = Class.forName("android.os.storage.StorageVolume")
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val getVolumeList = storageManager.javaClass.getMethod("getVolumeList")
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val getUuid = storageVolumeClazz.getMethod("getUuid")
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val getPath = storageVolumeClazz.getMethod("getPath")
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val result = getVolumeList.invoke(storageManager)
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val length = java.lang.reflect.Array.getLength(result!!)
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for (i in 0 until length) {
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val storageVolumeElement = java.lang.reflect.Array.get(result, i)
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val uuid = getUuid.invoke(storageVolumeElement)
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if (uuid == volumeId) return getPath.invoke(storageVolumeElement) as String
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}
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} catch (e: Exception) {
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Log.d(PATH_RESOLVER_TAG, "StorageManager reflection failed")
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}
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}
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// Second strategy: Context.getExternalFilesDirs()
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for (dir in ContextCompat.getExternalFilesDirs(context, null)) {
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Log.d(PATH_RESOLVER_TAG, "External dir: $dir")
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if (Environment.isExternalStorageRemovable(dir)) {
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Log.d(PATH_RESOLVER_TAG, "isExternalStorageRemovable")
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val path = dir.path.split("/Android")[0]
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if (File(path).name == volumeId) {
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return path
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}
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}
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}
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Log.d(PATH_RESOLVER_TAG, "getExternalFilesDirs failed")
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// Third strategy: parsing the output of mount
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// Don't risk to be killed by SELinux on newer Android versions
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if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.Q) {
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try {
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val process = ProcessBuilder("mount").redirectErrorStream(true).start().apply { waitFor() }
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process.inputStream.readBytes().decodeToString().split("\n").forEach { line ->
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if (line.startsWith("/dev/block/vold")) {
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Log.d(PATH_RESOLVER_TAG, "mount: $line")
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val fields = line.split(" ")
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if (fields.size >= 3) {
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val path = fields[2]
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if (File(path).name == volumeId) {
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return path
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}
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}
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}
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}
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} catch (e: Exception) {
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e.printStackTrace()
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}
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Log.d(PATH_RESOLVER_TAG, "mount processing failed")
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}
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// Fourth strategy: guessing
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val directories = listOf("/storage/", "/mnt/media_rw/").map { File(it + volumeId) }
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listOf(File::canWrite, File::canRead, File::isDirectory).forEach { check ->
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directories.find { dir ->
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if (check(dir)) {
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Log.d(PATH_RESOLVER_TAG, "$dir: ${check.name}")
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true
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} else {
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false
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}
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}?.let { return it.path }
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}
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// Fifth strategy: fail
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return null
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}
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}
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fun recursiveRemoveDirectory(rootDirectory: File): Boolean {
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fun recursiveRemoveDirectory(rootDirectory: File): Boolean {
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