333 lines
12 KiB
Kotlin
Executable File
333 lines
12 KiB
Kotlin
Executable File
// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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package org.yuzu.yuzu_emu.utils
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import android.content.Context
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import android.database.Cursor
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import android.net.Uri
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import android.provider.DocumentsContract
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import androidx.documentfile.provider.DocumentFile
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import java.io.BufferedInputStream
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import java.io.File
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import java.io.FileOutputStream
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import java.io.IOException
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import java.io.InputStream
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import java.net.URLDecoder
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import java.util.zip.ZipEntry
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import java.util.zip.ZipInputStream
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import org.yuzu.yuzu_emu.YuzuApplication
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import org.yuzu.yuzu_emu.model.MinimalDocumentFile
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object FileUtil {
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const val PATH_TREE = "tree"
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const val DECODE_METHOD = "UTF-8"
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const val APPLICATION_OCTET_STREAM = "application/octet-stream"
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const val TEXT_PLAIN = "text/plain"
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/**
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* Create a file from directory with filename.
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* @param context Application context
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* @param directory parent path for file.
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* @param filename file display name.
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* @return boolean
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*/
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fun createFile(context: Context?, directory: String?, filename: String): DocumentFile? {
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var decodedFilename = filename
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try {
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val directoryUri = Uri.parse(directory)
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val parent = DocumentFile.fromTreeUri(context!!, directoryUri) ?: return null
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decodedFilename = URLDecoder.decode(decodedFilename, DECODE_METHOD)
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var mimeType = APPLICATION_OCTET_STREAM
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if (decodedFilename.endsWith(".txt")) {
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mimeType = TEXT_PLAIN
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}
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val exists = parent.findFile(decodedFilename)
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return exists ?: parent.createFile(mimeType, decodedFilename)
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} catch (e: Exception) {
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Log.error("[FileUtil]: Cannot create file, error: " + e.message)
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}
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return null
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}
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/**
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* Create a directory from directory with filename.
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* @param context Application context
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* @param directory parent path for directory.
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* @param directoryName directory display name.
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* @return boolean
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*/
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fun createDir(context: Context?, directory: String?, directoryName: String?): DocumentFile? {
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var decodedDirectoryName = directoryName
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try {
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val directoryUri = Uri.parse(directory)
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val parent = DocumentFile.fromTreeUri(context!!, directoryUri) ?: return null
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decodedDirectoryName = URLDecoder.decode(decodedDirectoryName, DECODE_METHOD)
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val isExist = parent.findFile(decodedDirectoryName)
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return isExist ?: parent.createDirectory(decodedDirectoryName)
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} catch (e: Exception) {
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Log.error("[FileUtil]: Cannot create file, error: " + e.message)
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}
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return null
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}
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/**
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* Open content uri and return file descriptor to JNI.
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* @param context Application context
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* @param path Native content uri path
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* @param openMode will be one of "r", "r", "rw", "wa", "rwa"
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* @return file descriptor
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*/
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@JvmStatic
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fun openContentUri(context: Context, path: String, openMode: String?): Int {
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try {
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val uri = Uri.parse(path)
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val parcelFileDescriptor = context.contentResolver.openFileDescriptor(uri, openMode!!)
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if (parcelFileDescriptor == null) {
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Log.error("[FileUtil]: Cannot get the file descriptor from uri: $path")
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return -1
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}
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val fileDescriptor = parcelFileDescriptor.detachFd()
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parcelFileDescriptor.close()
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return fileDescriptor
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} catch (e: Exception) {
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Log.error("[FileUtil]: Cannot open content uri, error: " + e.message)
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}
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return -1
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}
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/**
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* Reference: https://stackoverflow.com/questions/42186820/documentfile-is-very-slow
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* This function will be faster than DoucmentFile.listFiles
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* @param context Application context
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* @param uri Directory uri.
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* @return CheapDocument lists.
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*/
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fun listFiles(context: Context, uri: Uri): Array<MinimalDocumentFile> {
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val resolver = context.contentResolver
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val columns = arrayOf(
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DocumentsContract.Document.COLUMN_DOCUMENT_ID,
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DocumentsContract.Document.COLUMN_DISPLAY_NAME,
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DocumentsContract.Document.COLUMN_MIME_TYPE
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)
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var c: Cursor? = null
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val results: MutableList<MinimalDocumentFile> = ArrayList()
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try {
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val docId: String = if (isRootTreeUri(uri)) {
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DocumentsContract.getTreeDocumentId(uri)
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} else {
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DocumentsContract.getDocumentId(uri)
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}
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val childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(uri, docId)
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c = resolver.query(childrenUri, columns, null, null, null)
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while (c!!.moveToNext()) {
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val documentId = c.getString(0)
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val documentName = c.getString(1)
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val documentMimeType = c.getString(2)
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val documentUri = DocumentsContract.buildDocumentUriUsingTree(uri, documentId)
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val document = MinimalDocumentFile(documentName, documentMimeType, documentUri)
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results.add(document)
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}
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} catch (e: Exception) {
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Log.error("[FileUtil]: Cannot list file error: " + e.message)
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} finally {
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closeQuietly(c)
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}
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return results.toTypedArray()
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}
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/**
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* Check whether given path exists.
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* @param path Native content uri path
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* @return bool
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*/
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fun exists(context: Context, path: String?): Boolean {
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var c: Cursor? = null
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try {
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val mUri = Uri.parse(path)
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val columns = arrayOf(DocumentsContract.Document.COLUMN_DOCUMENT_ID)
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c = context.contentResolver.query(mUri, columns, null, null, null)
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return c!!.count > 0
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} catch (e: Exception) {
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Log.info("[FileUtil] Cannot find file from given path, error: " + e.message)
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} finally {
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closeQuietly(c)
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}
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return false
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}
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/**
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* Check whether given path is a directory
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* @param path content uri path
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* @return bool
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*/
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fun isDirectory(context: Context, path: String): Boolean {
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val resolver = context.contentResolver
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val columns = arrayOf(
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DocumentsContract.Document.COLUMN_MIME_TYPE
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)
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var isDirectory = false
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var c: Cursor? = null
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try {
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val mUri = Uri.parse(path)
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c = resolver.query(mUri, columns, null, null, null)
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c!!.moveToNext()
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val mimeType = c.getString(0)
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isDirectory = mimeType == DocumentsContract.Document.MIME_TYPE_DIR
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} catch (e: Exception) {
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Log.error("[FileUtil]: Cannot list files, error: " + e.message)
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} finally {
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closeQuietly(c)
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}
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return isDirectory
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}
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/**
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* Get file display name from given path
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* @param uri content uri
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* @return String display name
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*/
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fun getFilename(uri: Uri): String {
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val resolver = YuzuApplication.appContext.contentResolver
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val columns = arrayOf(
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DocumentsContract.Document.COLUMN_DISPLAY_NAME
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)
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var filename = ""
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var c: Cursor? = null
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try {
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c = resolver.query(uri, columns, null, null, null)
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c!!.moveToNext()
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filename = c.getString(0)
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} catch (e: Exception) {
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Log.error("[FileUtil]: Cannot get file size, error: " + e.message)
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} finally {
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closeQuietly(c)
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}
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return filename
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}
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fun getFilesName(context: Context, path: String): Array<String> {
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val uri = Uri.parse(path)
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val files: MutableList<String> = ArrayList()
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for (file in listFiles(context, uri)) {
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files.add(file.filename)
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}
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return files.toTypedArray()
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}
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/**
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* Get file size from given path.
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* @param path content uri path
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* @return long file size
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*/
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@JvmStatic
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fun getFileSize(context: Context, path: String): Long {
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val resolver = context.contentResolver
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val columns = arrayOf(
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DocumentsContract.Document.COLUMN_SIZE
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)
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var size: Long = 0
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var c: Cursor? = null
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try {
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val mUri = Uri.parse(path)
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c = resolver.query(mUri, columns, null, null, null)
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c!!.moveToNext()
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size = c.getLong(0)
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} catch (e: Exception) {
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Log.error("[FileUtil]: Cannot get file size, error: " + e.message)
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} finally {
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closeQuietly(c)
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}
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return size
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}
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fun copyUriToInternalStorage(
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context: Context,
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sourceUri: Uri?,
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destinationParentPath: String,
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destinationFilename: String
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): Boolean {
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var input: InputStream? = null
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var output: FileOutputStream? = null
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try {
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input = context.contentResolver.openInputStream(sourceUri!!)
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output = FileOutputStream("$destinationParentPath/$destinationFilename")
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val buffer = ByteArray(1024)
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var len: Int
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while (input!!.read(buffer).also { len = it } != -1) {
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output.write(buffer, 0, len)
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}
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output.flush()
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return true
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} catch (e: Exception) {
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Log.error("[FileUtil]: Cannot copy file, error: " + e.message)
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} finally {
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if (input != null) {
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try {
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input.close()
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} catch (e: IOException) {
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Log.error("[FileUtil]: Cannot close input file, error: " + e.message)
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}
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}
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if (output != null) {
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try {
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output.close()
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} catch (e: IOException) {
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Log.error("[FileUtil]: Cannot close output file, error: " + e.message)
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}
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}
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}
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return false
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}
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/**
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* Extracts the given zip file into the given directory.
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* @exception IOException if the file was being created outside of the target directory
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*/
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@Throws(SecurityException::class)
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fun unzip(zipStream: InputStream, destDir: File): Boolean {
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ZipInputStream(BufferedInputStream(zipStream)).use { zis ->
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var entry: ZipEntry? = zis.nextEntry
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while (entry != null) {
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val entryName = entry.name
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val entryFile = File(destDir, entryName)
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if (!entryFile.canonicalPath.startsWith(destDir.canonicalPath + File.separator)) {
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throw SecurityException("Entry is outside of the target dir: " + entryFile.name)
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}
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if (entry.isDirectory) {
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entryFile.mkdirs()
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} else {
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entryFile.parentFile?.mkdirs()
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entryFile.createNewFile()
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entryFile.outputStream().use { fos -> zis.copyTo(fos) }
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}
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entry = zis.nextEntry
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}
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}
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return true
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}
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fun isRootTreeUri(uri: Uri): Boolean {
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val paths = uri.pathSegments
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return paths.size == 2 && PATH_TREE == paths[0]
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}
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fun closeQuietly(closeable: AutoCloseable?) {
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if (closeable != null) {
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try {
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closeable.close()
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} catch (rethrown: RuntimeException) {
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throw rethrown
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} catch (ignored: Exception) {
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}
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}
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}
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fun getExtension(uri: Uri): String {
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val fileName = getFilename(uri)
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return fileName.substring(fileName.lastIndexOf(".") + 1)
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.lowercase()
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}
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}
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