Felipe Leme | c8c0a82 | 2018-01-26 15:51:56 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2018 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 android.service.autofill; |
| 18 | |
| 19 | import static android.view.autofill.Helper.sDebug; |
| 20 | |
| 21 | import android.annotation.NonNull; |
| 22 | import android.annotation.Nullable; |
| 23 | import android.annotation.TestApi; |
Felipe Leme | 27206d7 | 2018-02-14 18:03:32 -0800 | [diff] [blame] | 24 | import android.icu.text.DateFormat; |
Felipe Leme | c8c0a82 | 2018-01-26 15:51:56 -0800 | [diff] [blame] | 25 | import android.os.Parcel; |
| 26 | import android.os.Parcelable; |
| 27 | import android.util.Log; |
| 28 | import android.view.autofill.AutofillValue; |
| 29 | |
| 30 | import com.android.internal.util.Preconditions; |
| 31 | |
Felipe Leme | c8c0a82 | 2018-01-26 15:51:56 -0800 | [diff] [blame] | 32 | import java.util.Date; |
| 33 | |
| 34 | /** |
| 35 | * Sanitizes a date {@link AutofillValue} using a {@link DateFormat}. |
| 36 | * |
| 37 | * <p>For example, to sanitize a credit card expiration date to just its month and year: |
| 38 | * |
| 39 | * <pre class="prettyprint"> |
| 40 | * new DateValueSanitizer(new java.text.SimpleDateFormat("MM/yyyy"); |
| 41 | * </pre> |
| 42 | */ |
| 43 | public final class DateValueSanitizer extends InternalSanitizer implements Sanitizer, Parcelable { |
| 44 | |
| 45 | private static final String TAG = "DateValueSanitizer"; |
| 46 | |
| 47 | private final DateFormat mDateFormat; |
| 48 | |
| 49 | /** |
| 50 | * Default constructor. |
| 51 | * |
| 52 | * @param dateFormat date format applied to the actual date value of an input field. |
| 53 | */ |
| 54 | public DateValueSanitizer(@NonNull DateFormat dateFormat) { |
| 55 | mDateFormat = Preconditions.checkNotNull(dateFormat); |
| 56 | } |
| 57 | |
| 58 | /** @hide */ |
| 59 | @Override |
| 60 | @TestApi |
| 61 | @Nullable |
| 62 | public AutofillValue sanitize(@NonNull AutofillValue value) { |
| 63 | if (value == null) { |
| 64 | Log.w(TAG, "sanitize() called with null value"); |
| 65 | return null; |
| 66 | } |
| 67 | if (!value.isDate()) { |
| 68 | if (sDebug) Log.d(TAG, value + " is not a date"); |
| 69 | return null; |
| 70 | } |
| 71 | |
| 72 | try { |
| 73 | final Date date = new Date(value.getDateValue()); |
| 74 | |
| 75 | // First convert it to string |
| 76 | final String converted = mDateFormat.format(date); |
| 77 | if (sDebug) Log.d(TAG, "Transformed " + date + " to " + converted); |
| 78 | // Then parse it back to date |
| 79 | final Date sanitized = mDateFormat.parse(converted); |
| 80 | if (sDebug) Log.d(TAG, "Sanitized to " + sanitized); |
| 81 | return AutofillValue.forDate(sanitized.getTime()); |
| 82 | } catch (Exception e) { |
| 83 | Log.w(TAG, "Could not apply " + mDateFormat + " to " + value + ": " + e); |
| 84 | return null; |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | ///////////////////////////////////// |
| 89 | // Object "contract" methods. // |
| 90 | ///////////////////////////////////// |
| 91 | @Override |
| 92 | public String toString() { |
| 93 | if (!sDebug) return super.toString(); |
| 94 | |
| 95 | return "DateValueSanitizer: [dateFormat=" + mDateFormat + "]"; |
| 96 | } |
| 97 | |
| 98 | ///////////////////////////////////// |
| 99 | // Parcelable "contract" methods. // |
| 100 | ///////////////////////////////////// |
| 101 | @Override |
| 102 | public int describeContents() { |
| 103 | return 0; |
| 104 | } |
| 105 | |
| 106 | @Override |
| 107 | public void writeToParcel(Parcel parcel, int flags) { |
| 108 | parcel.writeSerializable(mDateFormat); |
| 109 | } |
| 110 | |
Jeff Sharkey | 9e8f83d | 2019-02-28 12:06:45 -0700 | [diff] [blame^] | 111 | public static final @android.annotation.NonNull Parcelable.Creator<DateValueSanitizer> CREATOR = |
Felipe Leme | c8c0a82 | 2018-01-26 15:51:56 -0800 | [diff] [blame] | 112 | new Parcelable.Creator<DateValueSanitizer>() { |
| 113 | @Override |
| 114 | public DateValueSanitizer createFromParcel(Parcel parcel) { |
| 115 | return new DateValueSanitizer((DateFormat) parcel.readSerializable()); |
| 116 | } |
| 117 | |
| 118 | @Override |
| 119 | public DateValueSanitizer[] newArray(int size) { |
| 120 | return new DateValueSanitizer[size]; |
| 121 | } |
| 122 | }; |
| 123 | } |