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Add virtual file support to file sharing.

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This commit is contained in:
Alex Hart
2023-08-07 13:27:55 -03:00
committed by GitHub
parent b4ef95a9b4
commit 0021e229d8
1 changed files with 47 additions and 1 deletions
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48
app/src/main/java/org/thoughtcrime/securesms/mms/PartAuthority.java
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@@ -3,10 +3,14 @@ package org.thoughtcrime.securesms.mms;
import android.content.ContentUris;
import android.content.Context;
import android.content.UriMatcher;
import android.content.res.AssetFileDescriptor;
import android.database.Cursor;
import android.net.Uri;
import android.provider.DocumentsContract;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.core.provider.DocumentsContractCompat;
import org.thoughtcrime.securesms.BuildConfig;
import org.thoughtcrime.securesms.attachments.Attachment;
@@ -20,6 +24,7 @@ import org.thoughtcrime.securesms.providers.DeprecatedPersistentBlobProvider;
import org.thoughtcrime.securesms.providers.PartProvider;
import org.thoughtcrime.securesms.wallpaper.WallpaperStorage;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
@@ -78,7 +83,7 @@ public class PartAuthority {
case WALLPAPER_ROW: return WallpaperStorage.read(context, getWallpaperFilename(uri));
case EMOJI_ROW: return EmojiFiles.openForReading(context, getEmojiFilename(uri));
case AVATAR_PICKER_ROW: return AvatarPickerStorage.read(context, getAvatarPickerFilename(uri));
default: return context.getContentResolver().openInputStream(uri);
default: return openExternalFileStream(context, uri);
}
} catch (SecurityException se) {
throw new IOException(se);
@@ -223,4 +228,45 @@ public class PartAuthority {
public static @NonNull AttachmentId requireAttachmentId(@NonNull Uri uri) {
return new PartUriParser(uri).getPartId();
}
private static @Nullable InputStream openExternalFileStream(@NonNull Context context, @NonNull Uri uri) throws IOException {
if (isVirtualFile(context, uri)) {
return getInputStreamForVirtualFile(context, uri);
} else {
return context.getContentResolver().openInputStream(uri);
}
}
private static boolean isVirtualFile(@NonNull Context context, @NonNull Uri uri) {
if (!DocumentsContractCompat.isDocumentUri(context, uri)) {
return false;
}
try (Cursor cursor = context.getContentResolver().query(uri, new String[]{DocumentsContract.Document.COLUMN_FLAGS}, null, null, null, null)) {
if (cursor == null) {
return false;
}
int flags = cursor.moveToFirst() ? cursor.getInt(0) : 0;
return (flags & DocumentsContractCompat.DocumentCompat.FLAG_VIRTUAL_DOCUMENT) != 0;
}
}
/** @noinspection resource*/
private static @Nullable InputStream getInputStreamForVirtualFile(@NonNull Context context, @NonNull Uri uri) throws IOException {
String[] openableMimeTypes = context.getContentResolver().getStreamTypes(uri, "*/*");
if (openableMimeTypes == null || openableMimeTypes.length < 1) {
throw new FileNotFoundException("No openable mime-types for virtual file.");
}
AssetFileDescriptor fileDescriptor = context.getContentResolver()
.openTypedAssetFileDescriptor(uri, openableMimeTypes[0], null);
if (fileDescriptor == null) {
throw new FileNotFoundException("Couldn't open file descriptor for virtual file.");
}
return fileDescriptor.createInputStream();
}
}