1 files changed, 103 insertions, 0 deletions
diff --git a/src/com/android/tv/data/epg/EpgInputWhiteList.java b/src/com/android/tv/data/epg/EpgInputWhiteList.java
new file mode 100644
index 00000000..eada8b24
--- /dev/null
+++ b/src/com/android/tv/data/epg/EpgInputWhiteList.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.tv.data.epg;
+
+import android.support.annotation.Nullable;
+import android.support.annotation.VisibleForTesting;
+import android.text.TextUtils;
+import android.util.Log;
+import com.android.tv.common.BuildConfig;
+import com.android.tv.common.config.api.RemoteConfig;
+import com.android.tv.common.experiments.Experiments;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+/** Checks if a package or a input is white listed. */
+public final class EpgInputWhiteList {
+    private static final boolean DEBUG = false;
+    private static final String TAG = "EpgInputWhiteList";
+    @VisibleForTesting public static final String KEY = "live_channels_3rd_party_epg_inputs";
+    private static final String QA_DEV_INPUTS =
+            "com.example.partnersupportsampletvinput/.SampleTvInputService,"
+                    + "com.android.tv.tuner.sample.dvb/.tvinput.SampleDvbTunerTvInputService";
+
+    /** Returns the package portion of a inputId */
+    @Nullable
+    public static String getPackageFromInput(@Nullable String inputId) {
+        return inputId == null ? null : inputId.substring(0, inputId.indexOf("/"));
+    }
+
+    private final RemoteConfig remoteConfig;
+
+    public EpgInputWhiteList(RemoteConfig remoteConfig) {
+        this.remoteConfig = remoteConfig;
+    }
+
+    public boolean isInputWhiteListed(String inputId) {
+        return getWhiteListedInputs().contains(inputId);
+    }
+
+    public boolean isPackageWhiteListed(String packageName) {
+        if (DEBUG) Log.d(TAG, "isPackageWhiteListed " + packageName);
+        Set<String> whiteList = getWhiteListedInputs();
+        for (String good : whiteList) {
+            try {
+                String goodPackage = getPackageFromInput(good);
+                if (goodPackage.equals(packageName)) {
+                    return true;
+                }
+            } catch (Exception e) {
+                if (DEBUG) Log.d(TAG, "Error parsing package name of " + good, e);
+                continue;
+            }
+        }
+        return false;
+    }
+
+    private Set<String> getWhiteListedInputs() {
+        Set<String> result = toInputSet(remoteConfig.getString(KEY));
+        if (BuildConfig.ENG || Experiments.ENABLE_QA_FEATURES.get()) {
+            HashSet<String> moreInputs = new HashSet<>(toInputSet(QA_DEV_INPUTS));
+            if (result.isEmpty()) {
+                result = moreInputs;
+            } else {
+                result.addAll(moreInputs);
+            }
+        }
+        if (DEBUG) Log.d(TAG, "getWhiteListedInputs " + result);
+        return result;
+    }
+
+    @VisibleForTesting
+    static Set<String> toInputSet(String value) {
+        if (TextUtils.isEmpty(value)) {
+            return Collections.emptySet();
+        }
+        List<String> strings = Arrays.asList(value.split(","));
+        Set<String> result = new HashSet<>(strings.size());
+        for (String s : strings) {
+            String trimmed = s.trim();
+            if (!TextUtils.isEmpty(trimmed)) {
+                result.add(trimmed);
+            }
+        }
+        return result;
+    }
+}