| /* |
| * Copyright 2016, 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.managedprovisioning.parser; |
| |
| import static android.app.admin.DevicePolicyManager.EXTRA_PROVISIONING_DISCLAIMERS; |
| import static android.app.admin.DevicePolicyManager.EXTRA_PROVISIONING_DISCLAIMER_CONTENT; |
| import static android.app.admin.DevicePolicyManager.EXTRA_PROVISIONING_DISCLAIMER_HEADER; |
| import static com.android.managedprovisioning.common.StoreUtils.DIR_PROVISIONING_PARAMS_FILE_CACHE; |
| |
| import android.content.Context; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.os.Parcelable; |
| import android.support.annotation.Nullable; |
| import android.support.annotation.VisibleForTesting; |
| import android.text.TextUtils; |
| import com.android.managedprovisioning.common.ProvisionLogger; |
| import com.android.managedprovisioning.common.StoreUtils; |
| import com.android.managedprovisioning.model.DisclaimersParam; |
| import com.android.managedprovisioning.model.DisclaimersParam.Disclaimer; |
| import java.io.File; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Parser for {@link EXTRA_PROVISIONING_DISCLAIMERS} into {@link DisclaimersParam} |
| * It also saves the disclaimer content into files |
| */ |
| public class DisclaimersParser { |
| private static final int MAX_LENGTH = 3; |
| |
| private final Context mContext; |
| private final long mProvisioningId; |
| private final File mDisclaimerDir; |
| |
| public DisclaimersParser(Context context, long provisioningId) { |
| mContext = context; |
| mProvisioningId = provisioningId; |
| mDisclaimerDir = new File(mContext.getFilesDir(), DIR_PROVISIONING_PARAMS_FILE_CACHE); |
| } |
| |
| @Nullable |
| public DisclaimersParam parse(Parcelable[] parcelables) throws ClassCastException { |
| if (parcelables == null) { |
| return null; |
| } |
| |
| List<Disclaimer> disclaimers = new ArrayList<>(MAX_LENGTH); |
| for (int i = 0; i < parcelables.length; i++) { |
| // maximum 3 disclaimers are accepted in the EXTRA_PROVISIONING_DISCLAIMERS API |
| if (disclaimers.size() >= MAX_LENGTH) { |
| break; |
| } |
| final Bundle disclaimerBundle = (Bundle) parcelables[i]; |
| final String header = disclaimerBundle.getString(EXTRA_PROVISIONING_DISCLAIMER_HEADER); |
| final Uri uri = disclaimerBundle.getParcelable(EXTRA_PROVISIONING_DISCLAIMER_CONTENT); |
| if (TextUtils.isEmpty(header)) { |
| ProvisionLogger.logw("Empty disclaimer header in " + i + " element"); |
| continue; |
| } |
| |
| if (uri == null) { |
| ProvisionLogger.logw("Null disclaimer content uri in " + i + " element"); |
| continue; |
| } |
| |
| File disclaimerFile = saveDisclaimerContentIntoFile(uri, i); |
| |
| if (disclaimerFile == null) { |
| ProvisionLogger.logw("Failed to copy disclaimer uri in " + i + " element"); |
| continue; |
| } |
| |
| disclaimers.add(new Disclaimer(header, disclaimerFile.getPath())); |
| } |
| return disclaimers.isEmpty() ? null : new DisclaimersParam.Builder() |
| .setDisclaimers(disclaimers.toArray(new Disclaimer[disclaimers.size()])).build(); |
| } |
| |
| /** |
| * @return {@link File} if the uri content is saved into the file successfully. Otherwise, |
| * return null. |
| */ |
| private File saveDisclaimerContentIntoFile(Uri uri, int index) { |
| if (!mDisclaimerDir.exists()) { |
| mDisclaimerDir.mkdirs(); |
| } |
| |
| String filename = "disclaimer_content_" + mProvisioningId + "_" + index + ".txt"; |
| File outputFile = new File(mDisclaimerDir, filename); |
| |
| boolean success = StoreUtils.copyUriIntoFile(mContext.getContentResolver(), uri, |
| outputFile); |
| return success ? outputFile : null; |
| } |
| } |