package io.filepicker.utils;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.os.ParcelFileDescriptor;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.util.Log;
import android.webkit.MimeTypeMap;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import io.filepicker.models.Node;
import okhttp3.MediaType;
import okhttp3.RequestBody;
/**
* Created by maciejwitowski on 11/5/14.
*/
public class FilesUtils {
private static final String TAG = FilesUtils.class.getSimpleName();
public static RequestBody getRequestBodyFromUri(Context context, String path, Uri uri) {
String mimetype = getMimeType(context, uri);
if (mimetype == null) {
return null;
}
// File path and mimetype are required
if (path == null) {
return null;
}
return RequestBody.create(MediaType.parse(mimetype), new File(path));
}
private static String getMimeType(Context context, Uri uri) {
if ("content".equalsIgnoreCase(uri.getScheme())) {
return context.getContentResolver().getType(uri);
} else {
String path = uri.getPath();
path = path.replaceAll("[^a-zA-Z_0-9\\.\\-\\(\\)\\%]", "");
String extension = MimeTypeMap.getFileExtensionFromUrl(path);
return MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
}
}
public static String getFileExtension(Context context, Uri uri) {
ContentResolver resolver = context.getContentResolver();
MimeTypeMap mime = MimeTypeMap.getSingleton();
return mime.getExtensionFromMimeType(resolver.getType(uri));
}
public static String getPath(final Context context, final Uri uri) {
String path = readPathFromUri(context, uri);
if (path == null || path.startsWith("http")) {
File cachedFile = cacheRemoteFile(context, uri);
if (cachedFile != null && cachedFile.exists()) {
path = cachedFile.getPath();
}
}
return path;
}
@SuppressWarnings("NewApi")
private static String readPathFromUri(Context context, Uri uri) {
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/" + split[1];
}
}
// DownloadsProvider
else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
return getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = getContentUri(type);
final String selection = "_id=?";
final String[] selectionArgs = new String[] { split[1] };
return getDataColumn(context, contentUri, selection, selectionArgs);
}
}
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
// Return the remote address
if (isGooglePhotosUri(uri)) {
return uri.getLastPathSegment();
}
return getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
private static Uri getContentUri(String type) {
switch (type) {
case "image":
return MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
case "video":
return MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
case "audio":
return MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
return null;
}
/**
* Get the value of the data column for this Uri. This is useful for
* MediaStore Uris, and other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @param selection (Optional) Filter used in the query.
* @param selectionArgs (Optional) Selection arguments used in the query.
* @return The value of the _data column, which is typically a file path.
*/
private static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
Cursor cursor = null;
final String column = MediaStore.Images.Media.DATA;
final String[] projection = { column };
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
final int column_index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(column_index);
}
} catch(IllegalArgumentException e) {
e.printStackTrace();
} finally {
if (cursor != null) {
cursor.close();
}
}
return null;
}
private static File cacheRemoteFile(Context context, Uri uri) {
try {
InputStream in = context.getContentResolver().openInputStream(uri);
Bitmap bitmap = BitmapFactory.decodeStream(in);
if (bitmap != null) {
File file = new File(context.getCacheDir(), "image");
OutputStream os = new BufferedOutputStream(new FileOutputStream(file));
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, os);
os.close();
return file;
}
} catch (IOException e) {
Log.w(TAG, "Remote file not found: " + uri.getPath());
}
return null;
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
*/
private static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is DownloadsProvider.
*/
private static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is MediaProvider.
*/
private static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is Google Photos.
*/
private static boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}
/** Return combined path to file
*
* @param node - parent node
* @param filename - name of file
* @param fileExtension - extension of file
* @return String - path to file
*/
public static String getFilePath(Node node, String filename, String fileExtension) {
String path = node.linkPath;
if (!path.endsWith("/")) {
path += "/";
}
path += filename + "." + fileExtension;
return path;
}
/**
* Opens file from uri for reading and write its content to temporary file in cache directory
* @param context
* @param fileUri - uri of file to save
* @return - built TypedFile
*/
public static RequestBody buildRequestBody(Context context, Uri fileUri) {
RequestBody typedFile = null;
ContentResolver cr = context.getContentResolver();
try {
ParcelFileDescriptor descriptor = cr.openFileDescriptor(fileUri, "r");
InputStream is = new FileInputStream(descriptor.getFileDescriptor());
File outputFile = File.createTempFile("prefix", "extension", context.getCacheDir());
OutputStream os = new FileOutputStream(outputFile);
outputFile.setWritable(true);
byte[] buffer = new byte[1024];
int length;
while((length = is.read(buffer)) > 0) {
os.write(buffer, 0, length);
}
typedFile = RequestBody.create(MediaType.parse(cr.getType(fileUri)), outputFile);
os.close();
} catch (IOException e) {
e.printStackTrace();
}
return typedFile;
}
}