245 lines
9.3 KiB
Kotlin
245 lines
9.3 KiB
Kotlin
package sushi.hardcore.droidfs.util
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import android.content.ActivityNotFoundException
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import android.content.Context
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import android.net.Uri
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import android.os.Build
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import android.os.Environment
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import android.os.storage.StorageManager
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import android.provider.DocumentsContract
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import android.provider.OpenableColumns
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import android.util.Log
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import androidx.activity.result.ActivityResultLauncher
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import androidx.core.content.ContextCompat
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import sushi.hardcore.droidfs.R
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import sushi.hardcore.droidfs.Theme
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import sushi.hardcore.droidfs.widgets.CustomAlertDialogBuilder
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import java.io.File
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import java.text.DecimalFormat
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import kotlin.math.log10
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import kotlin.math.max
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import kotlin.math.pow
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object PathUtils {
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const val SEPARATOR = '/'
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const val PATH_RESOLVER_TAG = "PATH RESOLVER"
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fun getParentPath(path: String): String {
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val strippedPath = if (path.endsWith(SEPARATOR)) {
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path.substring(0, max(1, path.length - 1))
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} else {
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path
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}
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return if (strippedPath.count { it == SEPARATOR } <= 1) {
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SEPARATOR.toString()
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} else {
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strippedPath.substring(0, strippedPath.lastIndexOf(SEPARATOR))
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}
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}
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fun pathJoin(vararg strings: String): String {
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val result = StringBuilder()
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for (element in strings) {
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if (element.isNotEmpty()) {
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if (!element.startsWith(SEPARATOR) && result.last() != SEPARATOR) {
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result.append(SEPARATOR)
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}
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result.append(element)
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}
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}
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return result.toString()
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}
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fun getRelativePath(parentPath: String, childPath: String): String {
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return childPath.substring(parentPath.length + if (parentPath.endsWith(SEPARATOR) || childPath.length == parentPath.length) {
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0
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} else {
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1
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})
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}
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fun isChildOf(childPath: String, parentPath: String): Boolean {
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if (parentPath.length > childPath.length){
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return false
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}
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return childPath.substring(0, parentPath.length) == parentPath
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}
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fun getFilenameFromURI(context: Context, uri: Uri): String? {
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var result: String? = null
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if (uri.scheme == "content") {
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context.contentResolver.query(uri, null, null, null, null)?.use { cursor ->
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if (cursor.moveToFirst()) {
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result = cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME))
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}
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}
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}
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if (result == null) {
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result = uri.path
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result?.let {
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val cut = it.lastIndexOf(SEPARATOR)
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if (cut != -1) {
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result = it.substring(cut + 1)
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}
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}
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}
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return result
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}
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private val units = arrayOf("B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB")
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fun formatSize(size: Long): String {
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if (size <= 0) {
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return "0 B"
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}
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val digitGroups = (log10(size.toDouble()) / log10(1000.0)).toInt()
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return DecimalFormat("#,##0.#").format(size / 1000.0.pow(digitGroups.toDouble())
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) + " " + units[digitGroups]
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}
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fun getPackageDataFolder(context: Context): String {
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return "Android/data/${context.packageName}/"
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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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val externalPaths: MutableList<String> = ArrayList()
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ContextCompat.getExternalFilesDirs(context, null).forEach {
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if (Environment.isExternalStorageRemovable(it)) {
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val rootPath = it.path.substring(0, it.path.indexOf(getPackageDataFolder(context)+"files"))
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externalPaths.add(rootPath)
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}
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}
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return externalPaths
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}
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fun isPathOnExternalStorage(path: String, context: Context): Boolean {
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getExternalStoragesPaths(context).forEach {
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if (path.startsWith(it)){
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return true
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}
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}
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return false
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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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if ("content".equals(treeUri.scheme, ignoreCase = true)) {
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val vId = getVolumeIdFromTreeUri(treeUri)
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Log.d(PATH_RESOLVER_TAG, "Volume Id: $vId")
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var volumePath = getVolumePath(vId ?: return null, context)
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Log.d(PATH_RESOLVER_TAG, "Volume Path: $volumePath")
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if (volumePath == null) {
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volumePath = if (vId == "primary") {
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Environment.getExternalStorageDirectory().path
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} else {
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getExternalStoragePath(context, vId) ?: "/storage/$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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return if (documentPath.isNotEmpty()) {
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pathJoin(volumePath!!, documentPath)
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} else volumePath
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} else if ("file".equals(treeUri.scheme, ignoreCase = true)) {
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return treeUri.path
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}
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return null
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}
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private fun getVolumePath(volumeId: String, context: Context): String? {
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return try {
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val mStorageManager = context.getSystemService(Context.STORAGE_SERVICE) as StorageManager
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val storageVolumeClazz = Class.forName("android.os.storage.StorageVolume")
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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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private fun getVolumeIdFromTreeUri(treeUri: Uri): String? {
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val docId = DocumentsContract.getTreeDocumentId(treeUri)
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val split = docId.split(":").toTypedArray()
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return if (split.isNotEmpty()) split[0] else null
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}
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private fun getDocumentPathFromTreeUri(treeUri: Uri): String? {
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val docId = DocumentsContract.getTreeDocumentId(treeUri)
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val split: Array<String?> = docId.split(":").toTypedArray()
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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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fun recursiveRemoveDirectory(rootDirectory: File): Boolean {
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rootDirectory.listFiles()?.forEach { item ->
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if (item.isDirectory) {
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if (!recursiveRemoveDirectory(item)){
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return false
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}
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} else {
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if (!item.delete()) {
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return false
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}
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}
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}
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return rootDirectory.delete()
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}
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fun safePickDirectory(directoryPicker: ActivityResultLauncher<Uri?>, context: Context, theme: Theme) {
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try {
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directoryPicker.launch(null)
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} catch (e: ActivityNotFoundException) {
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CustomAlertDialogBuilder(context, theme)
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.setTitle(R.string.error)
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.setMessage(R.string.open_tree_failed)
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.setPositiveButton(R.string.ok, null)
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.show()
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}
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}
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} |