Delta Chat v1.58.3 - AttachmentsContentProvider.java 源代码

package org.thoughtcrime.securesms.connect;

import android.content.ContentProvider;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.ParcelFileDescriptor;
import android.webkit.MimeTypeMap;
import com.b44t.messenger.DcContext;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Objects;
import org.thoughtcrime.securesms.util.MediaUtil;

public class AttachmentsContentProvider extends ContentProvider {
    @Override
    public int delete(Uri uri, String str, String[] strArr) {
        return 0;
    }

    @Override
    public Uri insert(Uri uri, ContentValues contentValues) {
        return null;
    }

    @Override
    public boolean onCreate() {
        return false;
    }

    @Override
    public Cursor query(Uri uri, String[] strArr, String str, String[] strArr2, String str2) {
        return null;
    }

    @Override
    public int update(Uri uri, ContentValues contentValues, String str, String[] strArr) {
        return 0;
    }

    @Override
    public ParcelFileDescriptor openFile(Uri uri, String str) throws FileNotFoundException {
        DcContext context = DcHelper.getContext((Context) Objects.requireNonNull(getContext()));
        String str2 = uri.getPathSegments().get(0);
        if (!DcHelper.sharedFiles.containsKey(str2)) {
            throw new FileNotFoundException("File was not shared before.");
        }
        return ParcelFileDescriptor.open(new File(context.getBlobdir(), str2), 268435456);
    }

    @Override
    public String getType(Uri uri) {
        return DcHelper.checkMime(uri.toString(), DcHelper.sharedFiles.get(uri.getPathSegments().get(0)));
    }

    @Override
    public String getTypeAnonymous(Uri uri) {
        return MimeTypeMap.getSingleton().getMimeTypeFromExtension(MediaUtil.getFileExtensionFromUrl(uri.toString()));
    }
}