| /* |
| * Copyright (C) 2018 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 android.service.autofill; |
| |
| import static android.view.autofill.Helper.sDebug; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.TestApi; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.util.Log; |
| import android.view.autofill.AutofillValue; |
| |
| import com.android.internal.util.Preconditions; |
| |
| import java.text.DateFormat; |
| import java.util.Date; |
| |
| /** |
| * Sanitizes a date {@link AutofillValue} using a {@link DateFormat}. |
| * |
| * <p>For example, to sanitize a credit card expiration date to just its month and year: |
| * |
| * <pre class="prettyprint"> |
| * new DateValueSanitizer(new java.text.SimpleDateFormat("MM/yyyy"); |
| * </pre> |
| */ |
| public final class DateValueSanitizer extends InternalSanitizer implements Sanitizer, Parcelable { |
| |
| private static final String TAG = "DateValueSanitizer"; |
| |
| private final DateFormat mDateFormat; |
| |
| /** |
| * Default constructor. |
| * |
| * @param dateFormat date format applied to the actual date value of an input field. |
| */ |
| public DateValueSanitizer(@NonNull DateFormat dateFormat) { |
| mDateFormat = Preconditions.checkNotNull(dateFormat); |
| } |
| |
| /** @hide */ |
| @Override |
| @TestApi |
| @Nullable |
| public AutofillValue sanitize(@NonNull AutofillValue value) { |
| if (value == null) { |
| Log.w(TAG, "sanitize() called with null value"); |
| return null; |
| } |
| if (!value.isDate()) { |
| if (sDebug) Log.d(TAG, value + " is not a date"); |
| return null; |
| } |
| |
| try { |
| final Date date = new Date(value.getDateValue()); |
| |
| // First convert it to string |
| final String converted = mDateFormat.format(date); |
| if (sDebug) Log.d(TAG, "Transformed " + date + " to " + converted); |
| // Then parse it back to date |
| final Date sanitized = mDateFormat.parse(converted); |
| if (sDebug) Log.d(TAG, "Sanitized to " + sanitized); |
| return AutofillValue.forDate(sanitized.getTime()); |
| } catch (Exception e) { |
| Log.w(TAG, "Could not apply " + mDateFormat + " to " + value + ": " + e); |
| return null; |
| } |
| } |
| |
| ///////////////////////////////////// |
| // Object "contract" methods. // |
| ///////////////////////////////////// |
| @Override |
| public String toString() { |
| if (!sDebug) return super.toString(); |
| |
| return "DateValueSanitizer: [dateFormat=" + mDateFormat + "]"; |
| } |
| |
| ///////////////////////////////////// |
| // Parcelable "contract" methods. // |
| ///////////////////////////////////// |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(Parcel parcel, int flags) { |
| parcel.writeSerializable(mDateFormat); |
| } |
| |
| public static final Parcelable.Creator<DateValueSanitizer> CREATOR = |
| new Parcelable.Creator<DateValueSanitizer>() { |
| @Override |
| public DateValueSanitizer createFromParcel(Parcel parcel) { |
| return new DateValueSanitizer((DateFormat) parcel.readSerializable()); |
| } |
| |
| @Override |
| public DateValueSanitizer[] newArray(int size) { |
| return new DateValueSanitizer[size]; |
| } |
| }; |
| } |