1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 17 package com.android.tv.data.epg; 18 19 import android.support.annotation.Nullable; 20 import android.support.annotation.VisibleForTesting; 21 import android.text.TextUtils; 22 import android.util.Log; 23 import com.android.tv.common.BuildConfig; 24 import com.android.tv.common.experiments.Experiments; 25 import com.android.tv.common.flags.CloudEpgFlags; 26 import java.util.Arrays; 27 import java.util.Collections; 28 import java.util.HashSet; 29 import java.util.List; 30 import java.util.Set; 31 32 /** Checks if a package or a input is white listed. */ 33 public final class EpgInputWhiteList { 34 private static final boolean DEBUG = false; 35 private static final String TAG = "EpgInputWhiteList"; 36 private static final String QA_DEV_INPUTS = 37 "com.example.partnersupportsampletvinput/.SampleTvInputService," 38 + "com.android.tv.tuner.sample.dvb/.tvinput.SampleDvbTunerTvInputService"; 39 40 /** Returns the package portion of a inputId */ 41 @Nullable getPackageFromInput(@ullable String inputId)42 public static String getPackageFromInput(@Nullable String inputId) { 43 return inputId == null ? null : inputId.substring(0, inputId.indexOf("/")); 44 } 45 46 private final CloudEpgFlags cloudEpgFlags; 47 EpgInputWhiteList(CloudEpgFlags cloudEpgFlags)48 public EpgInputWhiteList(CloudEpgFlags cloudEpgFlags) { 49 this.cloudEpgFlags = cloudEpgFlags; 50 } 51 isInputWhiteListed(String inputId)52 public boolean isInputWhiteListed(String inputId) { 53 return getWhiteListedInputs().contains(inputId); 54 } 55 isPackageWhiteListed(String packageName)56 public boolean isPackageWhiteListed(String packageName) { 57 if (DEBUG) Log.d(TAG, "isPackageWhiteListed " + packageName); 58 Set<String> whiteList = getWhiteListedInputs(); 59 for (String good : whiteList) { 60 try { 61 String goodPackage = getPackageFromInput(good); 62 if (goodPackage.equals(packageName)) { 63 return true; 64 } 65 } catch (Exception e) { 66 if (DEBUG) Log.d(TAG, "Error parsing package name of " + good, e); 67 continue; 68 } 69 } 70 return false; 71 } 72 getWhiteListedInputs()73 private Set<String> getWhiteListedInputs() { 74 Set<String> result = toInputSet(cloudEpgFlags.thirdPartyEpgInputsCsv()); 75 if (BuildConfig.ENG || Experiments.ENABLE_QA_FEATURES.get()) { 76 HashSet<String> moreInputs = new HashSet<>(toInputSet(QA_DEV_INPUTS)); 77 if (result.isEmpty()) { 78 result = moreInputs; 79 } else { 80 result.addAll(moreInputs); 81 } 82 } 83 if (DEBUG) Log.d(TAG, "getWhiteListedInputs " + result); 84 return result; 85 } 86 87 @VisibleForTesting toInputSet(String value)88 static Set<String> toInputSet(String value) { 89 if (TextUtils.isEmpty(value)) { 90 return Collections.emptySet(); 91 } 92 List<String> strings = Arrays.asList(value.split(",")); 93 Set<String> result = new HashSet<>(strings.size()); 94 for (String s : strings) { 95 String trimmed = s.trim(); 96 if (!TextUtils.isEmpty(trimmed)) { 97 result.add(trimmed); 98 } 99 } 100 return result; 101 } 102 } 103