mirror of https://github.com/YTVanced/VancedMicroG
134 lines
4.9 KiB
Java
134 lines
4.9 KiB
Java
/*
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* Copyright (C) 2013-2017 microG Project Team
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.microg.gms.gservices;
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import android.content.ContentProvider;
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import android.content.ContentValues;
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import android.database.Cursor;
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import android.database.MatrixCursor;
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import android.net.Uri;
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import android.os.Build;
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import android.util.Log;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.Set;
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/**
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* Originally found in Google Services Framework (com.google.android.gsf), this provides a generic
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* key-value store, that is written by the checkin service and read from various Google Apps.
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* <p/>
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* Google uses the checkin process to store various device or country specific settings and
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* if certain "experiments" are enabled on the device.
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*/
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public class GServicesProvider extends ContentProvider {
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public static final Uri CONTENT_URI = Uri.parse("content://com.mgoogle.android.gsf.gservices/");
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public static final Uri MAIN_URI = Uri.withAppendedPath(CONTENT_URI, "main");
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public static final Uri OVERRIDE_URI = Uri.withAppendedPath(CONTENT_URI, "override");
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public static final Uri PREFIX_URI = Uri.withAppendedPath(CONTENT_URI, "prefix");
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private static final String TAG = "GmsServicesProvider";
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private DatabaseHelper databaseHelper;
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private Map<String, String> cache = new HashMap<>();
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private Set<String> cachedPrefixes = new HashSet<>();
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@Override
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public boolean onCreate() {
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databaseHelper = new DatabaseHelper(getContext());
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return true;
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}
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private String getCallingPackageName() {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
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return getCallingPackage();
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} else {
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return "unknown";
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}
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}
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@Override
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public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
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MatrixCursor cursor = new MatrixCursor(new String[]{"name", "value"});
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if (PREFIX_URI.equals(uri)) {
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for (String prefix : selectionArgs) {
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if (!cachedPrefixes.contains(prefix)) {
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cache.putAll(databaseHelper.search(prefix + "%"));
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cachedPrefixes.add(prefix);
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}
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for (String name : cache.keySet()) {
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if (name.startsWith(prefix)) {
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String value = cache.get(name);
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Log.d(TAG, "query caller=" + getCallingPackageName() + " prefix=" + prefix + " name=" + name + " value=" + value);
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cursor.addRow(new String[]{name, value});
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}
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}
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}
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} else {
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for (String name : selectionArgs) {
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String value;
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if (cache.containsKey(name)) {
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value = cache.get(name);
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} else {
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value = databaseHelper.get(name);
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cache.put(name, value);
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}
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Log.d(TAG, "query caller=" + getCallingPackageName() + " name=" + name + " value=" + value);
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if (value != null) {
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cursor.addRow(new String[]{name, value});
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}
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}
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}
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if (cursor.getCount() == 0) return null;
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return cursor;
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}
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@Override
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public String getType(Uri uri) {
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return null;
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}
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@Override
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public Uri insert(Uri uri, ContentValues values) {
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throw new UnsupportedOperationException();
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}
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@Override
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public int delete(Uri uri, String selection, String[] selectionArgs) {
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throw new UnsupportedOperationException();
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}
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@Override
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public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
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Log.d(TAG, "update caller=" + getCallingPackageName() + " table=" + uri.getLastPathSegment()
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+ " name=" + values.getAsString("name") + " value=" + values.getAsString("value"));
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if (uri.equals(MAIN_URI)) {
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databaseHelper.put("main", values);
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} else if (uri.equals(OVERRIDE_URI)) {
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databaseHelper.put("override", values);
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}
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String name = values.getAsString("name");
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cache.remove(name);
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Iterator<String> iterator = cachedPrefixes.iterator();
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while (iterator.hasNext()) if (name.startsWith(iterator.next())) iterator.remove();
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return 1;
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}
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}
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