From 7aceaacec9f6c09d0d1ccfaf26d1512039e85c57 Mon Sep 17 00:00:00 2001 From: sbosse Date: Mon, 21 Jul 2025 23:23:00 +0200 Subject: [PATCH] Mon 21 Jul 22:43:21 CEST 2025 --- .../src/android/LocalFilesystem.java | 510 ++++++++++++++++++ 1 file changed, 510 insertions(+) create mode 100644 js/ui/cordova/plugins/cordova-plugin-file/src/android/LocalFilesystem.java diff --git a/js/ui/cordova/plugins/cordova-plugin-file/src/android/LocalFilesystem.java b/js/ui/cordova/plugins/cordova-plugin-file/src/android/LocalFilesystem.java new file mode 100644 index 0000000..153d8e3 --- /dev/null +++ b/js/ui/cordova/plugins/cordova-plugin-file/src/android/LocalFilesystem.java @@ -0,0 +1,510 @@ +/* + Licensed to the Apache Software Foundation (ASF) under one + or more contributor license agreements. See the NOTICE file + distributed with this work for additional information + regarding copyright ownership. The ASF licenses this file + to you under the Apache License, Version 2.0 (the + "License"); you may not use this file except in compliance + with the License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, + software distributed under the License is distributed on an + "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + KIND, either express or implied. See the License for the + specific language governing permissions and limitations + under the License. + */ +package org.apache.cordova.file; + +import java.io.ByteArrayInputStream; +import java.io.File; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.io.RandomAccessFile; +import java.nio.channels.FileChannel; +import org.apache.cordova.CordovaResourceApi; +import org.json.JSONException; +import org.json.JSONObject; + +import android.os.Build; +import android.os.Environment; +import android.util.Base64; +import android.net.Uri; +import android.content.Context; +import android.content.Intent; + +public class LocalFilesystem extends Filesystem { + private final Context context; + + public LocalFilesystem(String name, Context context, CordovaResourceApi resourceApi, File fsRoot) { + super(Uri.fromFile(fsRoot).buildUpon().appendEncodedPath("").build(), name, resourceApi); + this.context = context; + } + + public String filesystemPathForFullPath(String fullPath) { + return new File(rootUri.getPath(), fullPath).toString(); + } + + @Override + public String filesystemPathForURL(LocalFilesystemURL url) { + return filesystemPathForFullPath(url.path); + } + + private String fullPathForFilesystemPath(String absolutePath) { + if (absolutePath != null && absolutePath.startsWith(rootUri.getPath())) { + return absolutePath.substring(rootUri.getPath().length() - 1); + } + return null; + } + + @Override + public Uri toNativeUri(LocalFilesystemURL inputURL) { + return nativeUriForFullPath(inputURL.path); + } + + @Override + public LocalFilesystemURL toLocalUri(Uri inputURL) { + if (!"file".equals(inputURL.getScheme())) { + return null; + } + File f = new File(inputURL.getPath()); + // Removes and duplicate /s (e.g. file:///a//b/c) + Uri resolvedUri = Uri.fromFile(f); + String rootUriNoTrailingSlash = rootUri.getEncodedPath(); + rootUriNoTrailingSlash = rootUriNoTrailingSlash.substring(0, rootUriNoTrailingSlash.length() - 1); + if (!resolvedUri.getEncodedPath().startsWith(rootUriNoTrailingSlash)) { + return null; + } + String subPath = resolvedUri.getEncodedPath().substring(rootUriNoTrailingSlash.length()); + // Strip leading slash + if (!subPath.isEmpty()) { + subPath = subPath.substring(1); + } + Uri.Builder b = new Uri.Builder() + .scheme(LocalFilesystemURL.FILESYSTEM_PROTOCOL) + .authority("localhost") + .path(name); + if (!subPath.isEmpty()) { + b.appendEncodedPath(subPath); + } + if (f.isDirectory() || inputURL.getPath().endsWith("/")) { + // Add trailing / for directories. + b.appendEncodedPath(""); + } + return LocalFilesystemURL.parse(b.build()); + } + + @Override + public LocalFilesystemURL URLforFilesystemPath(String path) { + return localUrlforFullPath(fullPathForFilesystemPath(path)); + } + + @Override + public JSONObject getFileForLocalURL(LocalFilesystemURL inputURL, + String path, JSONObject options, boolean directory) throws FileExistsException, IOException, TypeMismatchException, EncodingException, JSONException { + boolean create = false; + boolean exclusive = false; + + if (options != null) { + create = options.optBoolean("create"); + if (create) { + exclusive = options.optBoolean("exclusive"); + } + } + + // Check for a ":" character in the file to line up with BB and iOS + if (path.contains(":")) { + throw new EncodingException("This path has an invalid \":\" in it."); + } + + LocalFilesystemURL requestedURL; + + // Check whether the supplied path is absolute or relative + if (directory && !path.endsWith("/")) { + path += "/"; + } + if (path.startsWith("/")) { + requestedURL = localUrlforFullPath(normalizePath(path)); + } else { + requestedURL = localUrlforFullPath(normalizePath(inputURL.path + "/" + path)); + } + + File fp = new File(this.filesystemPathForURL(requestedURL)); + + if (create) { + if (exclusive && fp.exists()) { + throw new FileExistsException("create/exclusive fails"); + } + if (directory) { + fp.mkdir(); + } else { + fp.createNewFile(); + } + if (!fp.exists()) { + throw new FileExistsException("create fails"); + } + } + else { + if (!fp.exists()) { + throw new FileNotFoundException("path does not exist"); + } + if (directory) { + if (fp.isFile()) { + throw new TypeMismatchException("path doesn't exist or is file"); + } + } else { + if (fp.isDirectory()) { + throw new TypeMismatchException("path doesn't exist or is directory"); + } + } + } + + // Return the directory + return makeEntryForURL(requestedURL); + } + + @Override + public boolean removeFileAtLocalURL(LocalFilesystemURL inputURL) throws InvalidModificationException { + + File fp = new File(filesystemPathForURL(inputURL)); + + // You can't delete a directory that is not empty + if (fp.isDirectory() && fp.list().length > 0) { + throw new InvalidModificationException("You can't delete a directory that is not empty."); + } + + return fp.delete(); + } + + @Override + public boolean exists(LocalFilesystemURL inputURL) { + File fp = new File(filesystemPathForURL(inputURL)); + return fp.exists(); + } + + @Override + public long getFreeSpaceInBytes() { + return DirectoryManager.getFreeSpaceInBytes(rootUri.getPath()); + } + + @Override + public boolean recursiveRemoveFileAtLocalURL(LocalFilesystemURL inputURL) throws FileExistsException { + File directory = new File(filesystemPathForURL(inputURL)); + return removeDirRecursively(directory); + } + + protected boolean removeDirRecursively(File directory) throws FileExistsException { + if (directory.isDirectory()) { + for (File file : directory.listFiles()) { + removeDirRecursively(file); + } + } + + if (!directory.delete()) { + throw new FileExistsException("could not delete: " + directory.getName()); + } else { + return true; + } + } + + @Override + public LocalFilesystemURL[] listChildren(LocalFilesystemURL inputURL) throws FileNotFoundException { + File fp = new File(filesystemPathForURL(inputURL)); + + if (!fp.exists()) { + // The directory we are listing doesn't exist so we should fail. + throw new FileNotFoundException(); + } + + File[] files = fp.listFiles(); + if (files == null) { + // inputURL is a directory + return null; + } + LocalFilesystemURL[] entries = new LocalFilesystemURL[files.length]; + for (int i = 0; i < files.length; i++) { + entries[i] = URLforFilesystemPath(files[i].getPath()); + } + + return entries; + } + + @Override + public JSONObject getFileMetadataForLocalURL(LocalFilesystemURL inputURL) throws FileNotFoundException { + File file = new File(filesystemPathForURL(inputURL)); + + if (!file.exists()) { + throw new FileNotFoundException("File at " + inputURL.uri + " does not exist."); + } + + JSONObject metadata = new JSONObject(); + try { + // Ensure that directories report a size of 0 + metadata.put("size", file.isDirectory() ? 0 : file.length()); + metadata.put("type", resourceApi.getMimeType(Uri.fromFile(file))); + metadata.put("name", file.getName()); + metadata.put("fullPath", inputURL.path); + metadata.put("lastModifiedDate", file.lastModified()); + } catch (JSONException e) { + return null; + } + return metadata; + } + + private void copyFile(Filesystem srcFs, LocalFilesystemURL srcURL, File destFile, boolean move) throws IOException, InvalidModificationException, NoModificationAllowedException { + if (move) { + String realSrcPath = srcFs.filesystemPathForURL(srcURL); + if (realSrcPath != null) { + File srcFile = new File(realSrcPath); + if (srcFile.renameTo(destFile)) { + return; + } + // Trying to rename the file failed. Possibly because we moved across file system on the device. + } + } + + CordovaResourceApi.OpenForReadResult offr = resourceApi.openForRead(srcFs.toNativeUri(srcURL)); + copyResource(offr, new FileOutputStream(destFile)); + + if (move) { + srcFs.removeFileAtLocalURL(srcURL); + } + } + + private void copyDirectory(Filesystem srcFs, LocalFilesystemURL srcURL, File dstDir, boolean move) throws IOException, NoModificationAllowedException, InvalidModificationException, FileExistsException { + if (move) { + String realSrcPath = srcFs.filesystemPathForURL(srcURL); + if (realSrcPath != null) { + File srcDir = new File(realSrcPath); + // If the destination directory already exists and is empty then delete it. This is according to spec. + if (dstDir.exists()) { + if (dstDir.list().length > 0) { + throw new InvalidModificationException("directory is not empty"); + } + dstDir.delete(); + } + // Try to rename the directory + if (srcDir.renameTo(dstDir)) { + return; + } + // Trying to rename the file failed. Possibly because we moved across file system on the device. + } + } + + if (dstDir.exists()) { + if (dstDir.list().length > 0) { + throw new InvalidModificationException("directory is not empty"); + } + } else { + if (!dstDir.mkdir()) { + // If we can't create the directory then fail + throw new NoModificationAllowedException("Couldn't create the destination directory"); + } + } + + LocalFilesystemURL[] children = srcFs.listChildren(srcURL); + for (LocalFilesystemURL childLocalUrl : children) { + File target = new File(dstDir, new File(childLocalUrl.path).getName()); + if (childLocalUrl.isDirectory) { + copyDirectory(srcFs, childLocalUrl, target, false); + } else { + copyFile(srcFs, childLocalUrl, target, false); + } + } + + if (move) { + srcFs.recursiveRemoveFileAtLocalURL(srcURL); + } + } + + @Override + public JSONObject copyFileToURL(LocalFilesystemURL destURL, String newName, + Filesystem srcFs, LocalFilesystemURL srcURL, boolean move) throws IOException, InvalidModificationException, JSONException, NoModificationAllowedException, FileExistsException { + + // Check to see if the destination directory exists + String newParent = this.filesystemPathForURL(destURL); + File destinationDir = new File(newParent); + if (!destinationDir.exists()) { + // The destination does not exist so we should fail. + throw new FileNotFoundException("The source does not exist"); + } + + // Figure out where we should be copying to + final LocalFilesystemURL destinationURL = makeDestinationURL(newName, srcURL, destURL, srcURL.isDirectory); + + Uri dstNativeUri = toNativeUri(destinationURL); + Uri srcNativeUri = srcFs.toNativeUri(srcURL); + // Check to see if source and destination are the same file + if (dstNativeUri.equals(srcNativeUri)) { + throw new InvalidModificationException("Can't copy onto itself"); + } + + if (move && !srcFs.canRemoveFileAtLocalURL(srcURL)) { + throw new InvalidModificationException("Source URL is read-only (cannot move)"); + } + + File destFile = new File(dstNativeUri.getPath()); + if (destFile.exists()) { + if (!srcURL.isDirectory && destFile.isDirectory()) { + throw new InvalidModificationException("Can't copy/move a file to an existing directory"); + } else if (srcURL.isDirectory && destFile.isFile()) { + throw new InvalidModificationException("Can't copy/move a directory to an existing file"); + } + } + + if (srcURL.isDirectory) { + // E.g. Copy /sdcard/myDir to /sdcard/myDir/backup + if (dstNativeUri.toString().startsWith(srcNativeUri.toString() + '/')) { + throw new InvalidModificationException("Can't copy directory into itself"); + } + copyDirectory(srcFs, srcURL, destFile, move); + } else { + copyFile(srcFs, srcURL, destFile, move); + } + return makeEntryForURL(destinationURL); + } + + @Override + public long writeToFileAtURL(LocalFilesystemURL inputURL, String data, + int offset, boolean isBinary) throws IOException, NoModificationAllowedException { + + boolean append = false; + if (offset > 0) { + this.truncateFileAtURL(inputURL, offset); + append = true; + } + + byte[] rawData; + if (isBinary) { + rawData = Base64.decode(data, Base64.DEFAULT); + } else { + rawData = data.getBytes(); + } + ByteArrayInputStream in = new ByteArrayInputStream(rawData); + try + { + byte buff[] = new byte[rawData.length]; + String absolutePath = filesystemPathForURL(inputURL); + FileOutputStream out = new FileOutputStream(absolutePath, append); + try { + in.read(buff, 0, buff.length); + out.write(buff, 0, rawData.length); + out.flush(); + } finally { + // Always close the output + out.close(); + } + if (isPublicDirectory(absolutePath)) { + broadcastNewFile(Uri.fromFile(new File(absolutePath))); + } + } + catch (NullPointerException e) + { + // This is a bug in the Android implementation of the Java Stack + NoModificationAllowedException realException = new NoModificationAllowedException(inputURL.toString()); + throw realException; + } + + return rawData.length; + } + + private boolean isPublicDirectory(String absolutePath) { + // TODO: should expose a way to scan app's private files (maybe via a flag). + if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { + // Lollipop has a bug where SD cards are null. + for (File f : context.getExternalMediaDirs()) { + if(f != null && absolutePath.startsWith(f.getAbsolutePath())) { + return true; + } + } + } + + String extPath = Environment.getExternalStorageDirectory().getAbsolutePath(); + return absolutePath.startsWith(extPath); + } + + /** + * Send broadcast of new file so files appear over MTP + */ + private void broadcastNewFile(Uri nativeUri) { + Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, nativeUri); + context.sendBroadcast(intent); + } + + @Override + public long truncateFileAtURL(LocalFilesystemURL inputURL, long size) throws IOException { + File file = new File(filesystemPathForURL(inputURL)); + + if (!file.exists()) { + throw new FileNotFoundException("File at " + inputURL.uri + " does not exist."); + } + + RandomAccessFile raf = new RandomAccessFile(filesystemPathForURL(inputURL), "rw"); + try { + if (raf.length() >= size) { + FileChannel channel = raf.getChannel(); + channel.truncate(size); + return size; + } + + return raf.length(); + } finally { + raf.close(); + } + + + } + + @Override + public boolean canRemoveFileAtLocalURL(LocalFilesystemURL inputURL) { + String path = filesystemPathForURL(inputURL); + File file = new File(path); + return file.exists(); + } + + // This is a copy & paste from CordovaResource API that is required since CordovaResourceApi + // has a bug pre-4.0.0. + // TODO: Once cordova-android@4.0.0 is released, delete this copy and make the plugin depend on + // 4.0.0 with an engine tag. + private static void copyResource(CordovaResourceApi.OpenForReadResult input, OutputStream outputStream) throws IOException { + try { + InputStream inputStream = input.inputStream; + if (inputStream instanceof FileInputStream && outputStream instanceof FileOutputStream) { + FileChannel inChannel = ((FileInputStream)input.inputStream).getChannel(); + FileChannel outChannel = ((FileOutputStream)outputStream).getChannel(); + long offset = 0; + long length = input.length; + if (input.assetFd != null) { + offset = input.assetFd.getStartOffset(); + } + // transferFrom()'s 2nd arg is a relative position. Need to set the absolute + // position first. + inChannel.position(offset); + outChannel.transferFrom(inChannel, 0, length); + } else { + final int BUFFER_SIZE = 8192; + byte[] buffer = new byte[BUFFER_SIZE]; + + for (;;) { + int bytesRead = inputStream.read(buffer, 0, BUFFER_SIZE); + + if (bytesRead <= 0) { + break; + } + outputStream.write(buffer, 0, bytesRead); + } + } + } finally { + input.inputStream.close(); + if (outputStream != null) { + outputStream.close(); + } + } + } +}