diff options
Diffstat (limited to 'plugins/cordova-plugin-file/src/android/LocalFilesystem.java')
| -rw-r--r-- | plugins/cordova-plugin-file/src/android/LocalFilesystem.java | 505 |
1 files changed, 0 insertions, 505 deletions
diff --git a/plugins/cordova-plugin-file/src/android/LocalFilesystem.java b/plugins/cordova-plugin-file/src/android/LocalFilesystem.java deleted file mode 100644 index 3b1ecca8..00000000 --- a/plugins/cordova-plugin-file/src/android/LocalFilesystem.java +++ /dev/null @@ -1,505 +0,0 @@ -/* - 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 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(); - } - } - } -} |