Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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.server.notification; |
| 18 | |
| 19 | import android.app.Notification; |
| 20 | import android.content.Context; |
| 21 | import android.database.Cursor; |
| 22 | import android.net.Uri; |
| 23 | import android.os.Bundle; |
| 24 | import android.provider.ContactsContract; |
| 25 | import android.provider.ContactsContract.Contacts; |
| 26 | import android.provider.Settings; |
| 27 | import android.text.TextUtils; |
| 28 | import android.util.LruCache; |
| 29 | import android.util.Slog; |
| 30 | |
| 31 | import com.android.server.notification.NotificationManagerService.NotificationRecord; |
| 32 | |
| 33 | import java.util.ArrayList; |
| 34 | import java.util.LinkedList; |
| 35 | |
| 36 | /** |
| 37 | * This {@link NotificationSignalExtractor} attempts to validate |
| 38 | * people references. Also elevates the priority of real people. |
| 39 | */ |
| 40 | public class ValidateNotificationPeople implements NotificationSignalExtractor { |
| 41 | private static final String TAG = "ValidateNotificationPeople"; |
| 42 | private static final boolean INFO = true; |
| 43 | private static final boolean DEBUG = false; |
| 44 | |
| 45 | private static final boolean ENABLE_PEOPLE_VALIDATOR = true; |
| 46 | private static final String SETTING_ENABLE_PEOPLE_VALIDATOR = |
| 47 | "validate_notification_people_enabled"; |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 48 | private static final String[] LOOKUP_PROJECTION = { Contacts._ID, Contacts.STARRED }; |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 49 | private static final int MAX_PEOPLE = 10; |
| 50 | private static final int PEOPLE_CACHE_SIZE = 200; |
| 51 | |
| 52 | private static final float NONE = 0f; |
| 53 | private static final float VALID_CONTACT = 0.5f; |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 54 | private static final float STARRED_CONTACT = 1f; |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 55 | |
| 56 | protected boolean mEnabled; |
| 57 | private Context mContext; |
| 58 | |
| 59 | // maps raw person handle to resolved person object |
| 60 | private LruCache<String, LookupResult> mPeopleCache; |
| 61 | |
| 62 | private RankingFuture validatePeople(NotificationRecord record) { |
| 63 | float affinity = NONE; |
| 64 | Bundle extras = record.getNotification().extras; |
| 65 | if (extras == null) { |
| 66 | return null; |
| 67 | } |
| 68 | |
| 69 | final String[] people = getExtraPeople(extras); |
| 70 | if (people == null || people.length == 0) { |
| 71 | return null; |
| 72 | } |
| 73 | |
| 74 | if (INFO) Slog.i(TAG, "Validating: " + record.sbn.getKey()); |
| 75 | final LinkedList<String> pendingLookups = new LinkedList<String>(); |
| 76 | for (int personIdx = 0; personIdx < people.length && personIdx < MAX_PEOPLE; personIdx++) { |
| 77 | final String handle = people[personIdx]; |
| 78 | if (TextUtils.isEmpty(handle)) continue; |
| 79 | |
| 80 | synchronized (mPeopleCache) { |
| 81 | LookupResult lookupResult = mPeopleCache.get(handle); |
| 82 | if (lookupResult == null || lookupResult.isExpired()) { |
| 83 | pendingLookups.add(handle); |
| 84 | } else { |
| 85 | if (DEBUG) Slog.d(TAG, "using cached lookupResult: " + lookupResult.mId); |
| 86 | } |
| 87 | if (lookupResult != null) { |
| 88 | affinity = Math.max(affinity, lookupResult.getAffinity()); |
| 89 | } |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | // record the best available data, so far: |
| 94 | record.setContactAffinity(affinity); |
| 95 | |
| 96 | if (pendingLookups.isEmpty()) { |
| 97 | if (INFO) Slog.i(TAG, "final affinity: " + affinity); |
| 98 | return null; |
| 99 | } |
| 100 | |
| 101 | if (DEBUG) Slog.d(TAG, "Pending: future work scheduled for: " + record.sbn.getKey()); |
| 102 | return new RankingFuture(record) { |
| 103 | @Override |
| 104 | public void work() { |
| 105 | if (INFO) Slog.i(TAG, "Executing: validation for: " + mRecord.sbn.getKey()); |
| 106 | float affinity = NONE; |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 107 | for (final String handle: pendingLookups) { |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 108 | LookupResult lookupResult = null; |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 109 | final Uri uri = Uri.parse(handle); |
| 110 | if ("tel".equals(uri.getScheme())) { |
| 111 | if (DEBUG) Slog.d(TAG, "checking telephone URI: " + handle); |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 112 | lookupResult = resolvePhoneContact(uri.getSchemeSpecificPart()); |
| 113 | } else if ("mailto".equals(uri.getScheme())) { |
| 114 | if (DEBUG) Slog.d(TAG, "checking mailto URI: " + handle); |
| 115 | lookupResult = resolveEmailContact(uri.getSchemeSpecificPart()); |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 116 | } else if (handle.startsWith(Contacts.CONTENT_LOOKUP_URI.toString())) { |
| 117 | if (DEBUG) Slog.d(TAG, "checking lookup URI: " + handle); |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 118 | lookupResult = searchContacts(uri); |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 119 | } else { |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 120 | lookupResult = new LookupResult(); // invalid person for the cache |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 121 | Slog.w(TAG, "unsupported URI " + handle); |
| 122 | } |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 123 | if (lookupResult != null) { |
| 124 | synchronized (mPeopleCache) { |
| 125 | mPeopleCache.put(handle, lookupResult); |
| 126 | } |
| 127 | affinity = Math.max(affinity, lookupResult.getAffinity()); |
| 128 | } |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 129 | } |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 130 | float affinityBound = mRecord.getContactAffinity(); |
| 131 | affinity = Math.max(affinity, affinityBound); |
| 132 | mRecord.setContactAffinity(affinity); |
| 133 | if (INFO) Slog.i(TAG, "final affinity: " + affinity); |
| 134 | } |
| 135 | }; |
| 136 | } |
| 137 | |
| 138 | private String[] getExtraPeople(Bundle extras) { |
| 139 | String[] people = extras.getStringArray(Notification.EXTRA_PEOPLE); |
| 140 | if (people != null) { |
| 141 | return people; |
| 142 | } |
| 143 | |
| 144 | ArrayList<String> stringArray = extras.getStringArrayList(Notification.EXTRA_PEOPLE); |
| 145 | if (stringArray != null) { |
| 146 | return (String[]) stringArray.toArray(); |
| 147 | } |
| 148 | |
| 149 | String string = extras.getString(Notification.EXTRA_PEOPLE); |
| 150 | if (string != null) { |
| 151 | people = new String[1]; |
| 152 | people[0] = string; |
| 153 | return people; |
| 154 | } |
| 155 | char[] charArray = extras.getCharArray(Notification.EXTRA_PEOPLE); |
| 156 | if (charArray != null) { |
| 157 | people = new String[1]; |
| 158 | people[0] = new String(charArray); |
| 159 | return people; |
| 160 | } |
| 161 | |
| 162 | CharSequence charSeq = extras.getCharSequence(Notification.EXTRA_PEOPLE); |
| 163 | if (charSeq != null) { |
| 164 | people = new String[1]; |
| 165 | people[0] = charSeq.toString(); |
| 166 | return people; |
| 167 | } |
| 168 | |
| 169 | CharSequence[] charSeqArray = extras.getCharSequenceArray(Notification.EXTRA_PEOPLE); |
| 170 | if (charSeqArray != null) { |
| 171 | final int N = charSeqArray.length; |
| 172 | people = new String[N]; |
| 173 | for (int i = 0; i < N; i++) { |
| 174 | people[i] = charSeqArray[i].toString(); |
| 175 | } |
| 176 | return people; |
| 177 | } |
| 178 | |
| 179 | ArrayList<CharSequence> charSeqList = |
| 180 | extras.getCharSequenceArrayList(Notification.EXTRA_PEOPLE); |
| 181 | if (charSeqList != null) { |
| 182 | final int N = charSeqList.size(); |
| 183 | people = new String[N]; |
| 184 | for (int i = 0; i < N; i++) { |
| 185 | people[i] = charSeqList.get(i).toString(); |
| 186 | } |
| 187 | return people; |
| 188 | } |
| 189 | return null; |
| 190 | } |
| 191 | |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 192 | private LookupResult resolvePhoneContact(final String number) { |
| 193 | Uri phoneUri = Uri.withAppendedPath(ContactsContract.PhoneLookup.CONTENT_FILTER_URI, |
| 194 | Uri.encode(number)); |
| 195 | return searchContacts(phoneUri); |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 196 | } |
| 197 | |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 198 | private LookupResult resolveEmailContact(final String email) { |
| 199 | Uri numberUri = Uri.withAppendedPath( |
| 200 | ContactsContract.CommonDataKinds.Email.CONTENT_LOOKUP_URI, |
| 201 | Uri.encode(email)); |
| 202 | return searchContacts(numberUri); |
| 203 | } |
| 204 | |
| 205 | private LookupResult searchContacts(Uri lookupUri) { |
| 206 | LookupResult lookupResult = new LookupResult(); |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 207 | Cursor c = null; |
| 208 | try { |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 209 | c = mContext.getContentResolver().query(lookupUri, LOOKUP_PROJECTION, null, null, null); |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 210 | if (c != null && c.getCount() > 0) { |
| 211 | c.moveToFirst(); |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 212 | lookupResult.readContact(c); |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 213 | } |
| 214 | } catch(Throwable t) { |
| 215 | Slog.w(TAG, "Problem getting content resolver or performing contacts query.", t); |
| 216 | } finally { |
| 217 | if (c != null) { |
| 218 | c.close(); |
| 219 | } |
| 220 | } |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 221 | return lookupResult; |
| 222 | } |
| 223 | |
| 224 | public void initialize(Context context) { |
| 225 | if (DEBUG) Slog.d(TAG, "Initializing " + getClass().getSimpleName() + "."); |
| 226 | mContext = context; |
| 227 | mPeopleCache = new LruCache<String, LookupResult>(PEOPLE_CACHE_SIZE); |
| 228 | mEnabled = ENABLE_PEOPLE_VALIDATOR && 1 == Settings.Global.getInt( |
| 229 | mContext.getContentResolver(), SETTING_ENABLE_PEOPLE_VALIDATOR, 1); |
| 230 | } |
| 231 | |
| 232 | public RankingFuture process(NotificationManagerService.NotificationRecord record) { |
| 233 | if (!mEnabled) { |
| 234 | if (INFO) Slog.i(TAG, "disabled"); |
| 235 | return null; |
| 236 | } |
| 237 | if (record == null || record.getNotification() == null) { |
| 238 | if (INFO) Slog.i(TAG, "skipping empty notification"); |
| 239 | return null; |
| 240 | } |
| 241 | return validatePeople(record); |
| 242 | } |
| 243 | |
| 244 | private static class LookupResult { |
| 245 | private static final long CONTACT_REFRESH_MILLIS = 60 * 60 * 1000; // 1hr |
| 246 | public static final int INVALID_ID = -1; |
| 247 | |
| 248 | private final long mExpireMillis; |
| 249 | private int mId; |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 250 | private boolean mStarred; |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 251 | |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 252 | public LookupResult() { |
| 253 | mId = INVALID_ID; |
| 254 | mStarred = false; |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 255 | mExpireMillis = System.currentTimeMillis() + CONTACT_REFRESH_MILLIS; |
| 256 | } |
| 257 | |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 258 | public void readContact(Cursor cursor) { |
| 259 | final int idIdx = cursor.getColumnIndex(Contacts._ID); |
| 260 | if (idIdx >= 0) { |
| 261 | mId = cursor.getInt(idIdx); |
| 262 | if (DEBUG) Slog.d(TAG, "contact _ID is: " + mId); |
| 263 | } else { |
| 264 | if (DEBUG) Slog.d(TAG, "invalid cursor: no _ID"); |
| 265 | } |
| 266 | final int starIdx = cursor.getColumnIndex(Contacts.STARRED); |
| 267 | if (starIdx >= 0) { |
| 268 | mStarred = cursor.getInt(starIdx) != 0; |
| 269 | if (DEBUG) Slog.d(TAG, "contact STARRED is: " + mStarred); |
| 270 | } else { |
| 271 | if (DEBUG) Slog.d(TAG, "invalid cursor: no STARRED"); |
| 272 | } |
| 273 | } |
| 274 | |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 275 | public boolean isExpired() { |
| 276 | return mExpireMillis < System.currentTimeMillis(); |
| 277 | } |
| 278 | |
| 279 | public boolean isInvalid() { |
| 280 | return mId == INVALID_ID || isExpired(); |
| 281 | } |
| 282 | |
| 283 | public float getAffinity() { |
| 284 | if (isInvalid()) { |
| 285 | return NONE; |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 286 | } else if (mStarred) { |
| 287 | return STARRED_CONTACT; |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 288 | } else { |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 289 | return VALID_CONTACT; |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 290 | } |
| 291 | } |
| 292 | |
Chris Wren | 44d81a4 | 2014-05-14 17:38:05 -0400 | [diff] [blame^] | 293 | public LookupResult setStarred(boolean starred) { |
| 294 | mStarred = starred; |
| 295 | return this; |
| 296 | } |
| 297 | |
Chris Wren | f953664 | 2014-04-17 10:01:54 -0400 | [diff] [blame] | 298 | public LookupResult setId(int id) { |
| 299 | mId = id; |
| 300 | return this; |
| 301 | } |
| 302 | } |
| 303 | } |
| 304 | |