AccessPoint.java revision 04f7f34a713062ec3fd54a4c19481e9f76819899
1/* 2 * Copyright (C) 2015 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 17package com.android.settingslib.wifi; 18 19import android.annotation.IntDef; 20import android.annotation.Nullable; 21import android.app.AppGlobals; 22import android.content.Context; 23import android.content.pm.ApplicationInfo; 24import android.content.pm.IPackageManager; 25import android.content.pm.PackageManager; 26import android.net.ConnectivityManager; 27import android.net.NetworkCapabilities; 28import android.net.NetworkInfo; 29import android.net.NetworkInfo.DetailedState; 30import android.net.NetworkInfo.State; 31import android.net.NetworkKey; 32import android.net.NetworkScoreManager; 33import android.net.NetworkScorerAppData; 34import android.net.ScoredNetwork; 35import android.net.wifi.IWifiManager; 36import android.net.wifi.ScanResult; 37import android.net.wifi.WifiConfiguration; 38import android.net.wifi.WifiConfiguration.KeyMgmt; 39import android.net.wifi.WifiEnterpriseConfig; 40import android.net.wifi.WifiInfo; 41import android.net.wifi.WifiManager; 42import android.net.wifi.WifiNetworkScoreCache; 43import android.net.wifi.hotspot2.PasspointConfiguration; 44import android.os.Bundle; 45import android.os.Parcelable; 46import android.os.RemoteException; 47import android.os.ServiceManager; 48import android.os.SystemClock; 49import android.os.UserHandle; 50import android.support.annotation.NonNull; 51import android.text.Spannable; 52import android.text.SpannableString; 53import android.text.TextUtils; 54import android.text.style.TtsSpan; 55import android.util.ArraySet; 56import android.util.Log; 57 58import com.android.internal.annotations.VisibleForTesting; 59import com.android.settingslib.R; 60 61import java.lang.annotation.Retention; 62import java.lang.annotation.RetentionPolicy; 63import java.util.ArrayList; 64import java.util.Collection; 65import java.util.HashMap; 66import java.util.Iterator; 67import java.util.Map; 68import java.util.Set; 69import java.util.concurrent.atomic.AtomicInteger; 70 71 72public class AccessPoint implements Comparable<AccessPoint> { 73 static final String TAG = "SettingsLib.AccessPoint"; 74 75 /** 76 * Lower bound on the 2.4 GHz (802.11b/g/n) WLAN channels 77 */ 78 public static final int LOWER_FREQ_24GHZ = 2400; 79 80 /** 81 * Upper bound on the 2.4 GHz (802.11b/g/n) WLAN channels 82 */ 83 public static final int HIGHER_FREQ_24GHZ = 2500; 84 85 /** 86 * Lower bound on the 5.0 GHz (802.11a/h/j/n/ac) WLAN channels 87 */ 88 public static final int LOWER_FREQ_5GHZ = 4900; 89 90 /** 91 * Upper bound on the 5.0 GHz (802.11a/h/j/n/ac) WLAN channels 92 */ 93 public static final int HIGHER_FREQ_5GHZ = 5900; 94 95 /** The key which identifies this AccessPoint grouping. */ 96 private String mKey; 97 98 @IntDef({Speed.NONE, Speed.SLOW, Speed.MODERATE, Speed.FAST, Speed.VERY_FAST}) 99 @Retention(RetentionPolicy.SOURCE) 100 public @interface Speed { 101 /** 102 * Constant value representing an unlabeled / unscored network. 103 */ 104 int NONE = 0; 105 /** 106 * Constant value representing a slow speed network connection. 107 */ 108 int SLOW = 5; 109 /** 110 * Constant value representing a medium speed network connection. 111 */ 112 int MODERATE = 10; 113 /** 114 * Constant value representing a fast speed network connection. 115 */ 116 int FAST = 20; 117 /** 118 * Constant value representing a very fast speed network connection. 119 */ 120 int VERY_FAST = 30; 121 } 122 123 /** The underlying set of scan results comprising this AccessPoint. */ 124 private final ArraySet<ScanResult> mScanResults = new ArraySet<>(); 125 126 /** 127 * Map of BSSIDs to scored networks for individual bssids. 128 * 129 * <p>This cache should not be evicted with scan results, as the values here are used to 130 * generate a fallback in the absence of scores for the visible APs. 131 */ 132 private final Map<String, TimestampedScoredNetwork> mScoredNetworkCache = new HashMap<>(); 133 134 static final String KEY_NETWORKINFO = "key_networkinfo"; 135 static final String KEY_WIFIINFO = "key_wifiinfo"; 136 static final String KEY_SSID = "key_ssid"; 137 static final String KEY_SECURITY = "key_security"; 138 static final String KEY_SPEED = "key_speed"; 139 static final String KEY_PSKTYPE = "key_psktype"; 140 static final String KEY_SCANRESULTS = "key_scanresults"; 141 static final String KEY_SCOREDNETWORKCACHE = "key_scorednetworkcache"; 142 static final String KEY_CONFIG = "key_config"; 143 static final String KEY_FQDN = "key_fqdn"; 144 static final String KEY_PROVIDER_FRIENDLY_NAME = "key_provider_friendly_name"; 145 static final String KEY_IS_CARRIER_AP = "key_is_carrier_ap"; 146 static final String KEY_CARRIER_AP_EAP_TYPE = "key_carrier_ap_eap_type"; 147 static final String KEY_CARRIER_NAME = "key_carrier_name"; 148 static final AtomicInteger sLastId = new AtomicInteger(0); 149 150 /** 151 * These values are matched in string arrays -- changes must be kept in sync 152 */ 153 public static final int SECURITY_NONE = 0; 154 public static final int SECURITY_WEP = 1; 155 public static final int SECURITY_PSK = 2; 156 public static final int SECURITY_EAP = 3; 157 158 private static final int PSK_UNKNOWN = 0; 159 private static final int PSK_WPA = 1; 160 private static final int PSK_WPA2 = 2; 161 private static final int PSK_WPA_WPA2 = 3; 162 163 /** 164 * The number of distinct wifi levels. 165 * 166 * <p>Must keep in sync with {@link R.array.wifi_signal} and {@link WifiManager#RSSI_LEVELS}. 167 */ 168 public static final int SIGNAL_LEVELS = 5; 169 170 public static final int UNREACHABLE_RSSI = Integer.MIN_VALUE; 171 172 private final Context mContext; 173 174 private String ssid; 175 private String bssid; 176 private int security; 177 private int networkId = WifiConfiguration.INVALID_NETWORK_ID; 178 179 private int pskType = PSK_UNKNOWN; 180 181 private WifiConfiguration mConfig; 182 183 private int mRssi = UNREACHABLE_RSSI; 184 185 private WifiInfo mInfo; 186 private NetworkInfo mNetworkInfo; 187 AccessPointListener mAccessPointListener; 188 189 private Object mTag; 190 191 @Speed private int mSpeed = Speed.NONE; 192 private boolean mIsScoredNetworkMetered = false; 193 194 // used to co-relate internal vs returned accesspoint. 195 int mId; 196 197 /** 198 * Information associated with the {@link PasspointConfiguration}. Only maintaining 199 * the relevant info to preserve spaces. 200 */ 201 private String mFqdn; 202 private String mProviderFriendlyName; 203 204 private boolean mIsCarrierAp = false; 205 /** 206 * The EAP type {@link WifiEnterpriseConfig.Eap} associated with this AP if it is a carrier AP. 207 */ 208 private int mCarrierApEapType = WifiEnterpriseConfig.Eap.NONE; 209 private String mCarrierName = null; 210 211 public AccessPoint(Context context, Bundle savedState) { 212 mContext = context; 213 214 if (savedState.containsKey(KEY_CONFIG)) { 215 mConfig = savedState.getParcelable(KEY_CONFIG); 216 } 217 if (mConfig != null) { 218 loadConfig(mConfig); 219 } 220 if (savedState.containsKey(KEY_SSID)) { 221 ssid = savedState.getString(KEY_SSID); 222 } 223 if (savedState.containsKey(KEY_SECURITY)) { 224 security = savedState.getInt(KEY_SECURITY); 225 } 226 if (savedState.containsKey(KEY_SPEED)) { 227 mSpeed = savedState.getInt(KEY_SPEED); 228 } 229 if (savedState.containsKey(KEY_PSKTYPE)) { 230 pskType = savedState.getInt(KEY_PSKTYPE); 231 } 232 mInfo = savedState.getParcelable(KEY_WIFIINFO); 233 if (savedState.containsKey(KEY_NETWORKINFO)) { 234 mNetworkInfo = savedState.getParcelable(KEY_NETWORKINFO); 235 } 236 if (savedState.containsKey(KEY_SCANRESULTS)) { 237 Parcelable[] scanResults = savedState.getParcelableArray(KEY_SCANRESULTS); 238 mScanResults.clear(); 239 for (Parcelable result : scanResults) { 240 mScanResults.add((ScanResult) result); 241 } 242 } 243 if (savedState.containsKey(KEY_SCOREDNETWORKCACHE)) { 244 ArrayList<TimestampedScoredNetwork> scoredNetworkArrayList = 245 savedState.getParcelableArrayList(KEY_SCOREDNETWORKCACHE); 246 for (TimestampedScoredNetwork timedScore : scoredNetworkArrayList) { 247 mScoredNetworkCache.put(timedScore.getScore().networkKey.wifiKey.bssid, timedScore); 248 } 249 } 250 if (savedState.containsKey(KEY_FQDN)) { 251 mFqdn = savedState.getString(KEY_FQDN); 252 } 253 if (savedState.containsKey(KEY_PROVIDER_FRIENDLY_NAME)) { 254 mProviderFriendlyName = savedState.getString(KEY_PROVIDER_FRIENDLY_NAME); 255 } 256 if (savedState.containsKey(KEY_IS_CARRIER_AP)) { 257 mIsCarrierAp = savedState.getBoolean(KEY_IS_CARRIER_AP); 258 } 259 if (savedState.containsKey(KEY_CARRIER_AP_EAP_TYPE)) { 260 mCarrierApEapType = savedState.getInt(KEY_CARRIER_AP_EAP_TYPE); 261 } 262 if (savedState.containsKey(KEY_CARRIER_NAME)) { 263 mCarrierName = savedState.getString(KEY_CARRIER_NAME); 264 } 265 update(mConfig, mInfo, mNetworkInfo); 266 267 // Calculate required fields 268 updateKey(); 269 updateRssi(); 270 271 mId = sLastId.incrementAndGet(); 272 } 273 274 public AccessPoint(Context context, WifiConfiguration config) { 275 mContext = context; 276 loadConfig(config); 277 mId = sLastId.incrementAndGet(); 278 } 279 280 /** 281 * Initialize an AccessPoint object for a {@link PasspointConfiguration}. This is mainly 282 * used by "Saved Networks" page for managing the saved {@link PasspointConfiguration}. 283 */ 284 public AccessPoint(Context context, PasspointConfiguration config) { 285 mContext = context; 286 mFqdn = config.getHomeSp().getFqdn(); 287 mProviderFriendlyName = config.getHomeSp().getFriendlyName(); 288 mId = sLastId.incrementAndGet(); 289 } 290 291 AccessPoint(Context context, AccessPoint other) { 292 mContext = context; 293 copyFrom(other); 294 } 295 296 AccessPoint(Context context, Collection<ScanResult> results) { 297 mContext = context; 298 299 if (results.isEmpty()) { 300 throw new IllegalArgumentException("Cannot construct with an empty ScanResult list"); 301 } 302 mScanResults.addAll(results); 303 304 // Information derived from scan results 305 ScanResult firstResult = results.iterator().next(); 306 ssid = firstResult.SSID; 307 bssid = firstResult.BSSID; 308 security = getSecurity(firstResult); 309 if (security == SECURITY_PSK) { 310 pskType = getPskType(firstResult); 311 } 312 updateKey(); 313 updateRssi(); 314 315 // Passpoint Info 316 mIsCarrierAp = firstResult.isCarrierAp; 317 mCarrierApEapType = firstResult.carrierApEapType; 318 mCarrierName = firstResult.carrierName; 319 320 mId = sLastId.incrementAndGet(); 321 } 322 323 @VisibleForTesting void loadConfig(WifiConfiguration config) { 324 ssid = (config.SSID == null ? "" : removeDoubleQuotes(config.SSID)); 325 bssid = config.BSSID; 326 security = getSecurity(config); 327 updateKey(); 328 networkId = config.networkId; 329 mConfig = config; 330 } 331 332 /** Updates {@link #mKey} and should only called upon object creation/initialization. */ 333 private void updateKey() { 334 // TODO(sghuman): Consolidate Key logic on ScanResultMatchInfo 335 336 StringBuilder builder = new StringBuilder(); 337 338 if (TextUtils.isEmpty(getSsidStr())) { 339 builder.append(getBssid()); 340 } else { 341 builder.append(getSsidStr()); 342 } 343 344 builder.append(',').append(getSecurity()); 345 mKey = builder.toString(); 346 } 347 348 /** 349 * Copy accesspoint information. NOTE: We do not copy tag information because that is never 350 * set on the internal copy. 351 */ 352 void copyFrom(AccessPoint that) { 353 this.ssid = that.ssid; 354 this.bssid = that.bssid; 355 this.security = that.security; 356 this.mKey = that.mKey; 357 this.networkId = that.networkId; 358 this.pskType = that.pskType; 359 this.mConfig = that.mConfig; //TODO: Watch out, this object is mutated. 360 this.mRssi = that.mRssi; 361 this.mInfo = that.mInfo; 362 this.mNetworkInfo = that.mNetworkInfo; 363 this.mScanResults.clear(); 364 this.mScanResults.addAll(that.mScanResults); 365 this.mScoredNetworkCache.clear(); 366 this.mScoredNetworkCache.putAll(that.mScoredNetworkCache); 367 this.mId = that.mId; 368 this.mSpeed = that.mSpeed; 369 this.mIsScoredNetworkMetered = that.mIsScoredNetworkMetered; 370 this.mIsCarrierAp = that.mIsCarrierAp; 371 this.mCarrierApEapType = that.mCarrierApEapType; 372 this.mCarrierName = that.mCarrierName; 373 } 374 375 /** 376 * Returns a negative integer, zero, or a positive integer if this AccessPoint is less than, 377 * equal to, or greater than the other AccessPoint. 378 * 379 * Sort order rules for AccessPoints: 380 * 1. Active before inactive 381 * 2. Reachable before unreachable 382 * 3. Saved before unsaved 383 * 4. Network speed value 384 * 5. Stronger signal before weaker signal 385 * 6. SSID alphabetically 386 * 387 * Note that AccessPoints with a signal are usually also Reachable, 388 * and will thus appear before unreachable saved AccessPoints. 389 */ 390 @Override 391 public int compareTo(@NonNull AccessPoint other) { 392 // Active one goes first. 393 if (isActive() && !other.isActive()) return -1; 394 if (!isActive() && other.isActive()) return 1; 395 396 // Reachable one goes before unreachable one. 397 if (isReachable() && !other.isReachable()) return -1; 398 if (!isReachable() && other.isReachable()) return 1; 399 400 // Configured (saved) one goes before unconfigured one. 401 if (isSaved() && !other.isSaved()) return -1; 402 if (!isSaved() && other.isSaved()) return 1; 403 404 // Faster speeds go before slower speeds - but only if visible change in speed label 405 if (getSpeed() != other.getSpeed()) { 406 return other.getSpeed() - getSpeed(); 407 } 408 409 // Sort by signal strength, bucketed by level 410 int difference = WifiManager.calculateSignalLevel(other.mRssi, SIGNAL_LEVELS) 411 - WifiManager.calculateSignalLevel(mRssi, SIGNAL_LEVELS); 412 if (difference != 0) { 413 return difference; 414 } 415 416 // Sort by ssid. 417 difference = getSsidStr().compareToIgnoreCase(other.getSsidStr()); 418 if (difference != 0) { 419 return difference; 420 } 421 422 // Do a case sensitive comparison to distinguish SSIDs that differ in case only 423 return getSsidStr().compareTo(other.getSsidStr()); 424 } 425 426 @Override 427 public boolean equals(Object other) { 428 if (!(other instanceof AccessPoint)) return false; 429 return (this.compareTo((AccessPoint) other) == 0); 430 } 431 432 @Override 433 public int hashCode() { 434 int result = 0; 435 if (mInfo != null) result += 13 * mInfo.hashCode(); 436 result += 19 * mRssi; 437 result += 23 * networkId; 438 result += 29 * ssid.hashCode(); 439 return result; 440 } 441 442 @Override 443 public String toString() { 444 StringBuilder builder = new StringBuilder().append("AccessPoint(") 445 .append(ssid); 446 if (bssid != null) { 447 builder.append(":").append(bssid); 448 } 449 if (isSaved()) { 450 builder.append(',').append("saved"); 451 } 452 if (isActive()) { 453 builder.append(',').append("active"); 454 } 455 if (isEphemeral()) { 456 builder.append(',').append("ephemeral"); 457 } 458 if (isConnectable()) { 459 builder.append(',').append("connectable"); 460 } 461 if (security != SECURITY_NONE) { 462 builder.append(',').append(securityToString(security, pskType)); 463 } 464 builder.append(",level=").append(getLevel()); 465 if (mSpeed != Speed.NONE) { 466 builder.append(",speed=").append(mSpeed); 467 } 468 builder.append(",metered=").append(isMetered()); 469 470 if (WifiTracker.sVerboseLogging) { 471 builder.append(",rssi=").append(mRssi); 472 builder.append(",scan cache size=").append(mScanResults.size()); 473 } 474 475 return builder.append(')').toString(); 476 } 477 478 /** 479 * Updates the AccessPoint rankingScore, metering, and speed, returning true if the data has 480 * changed. 481 * 482 * @param scoreCache The score cache to use to retrieve scores 483 * @param scoringUiEnabled Whether to show scoring and badging UI 484 * @param maxScoreCacheAgeMillis the maximum age in milliseconds of scores to consider when 485 * generating speed labels 486 */ 487 boolean update( 488 WifiNetworkScoreCache scoreCache, 489 boolean scoringUiEnabled, 490 long maxScoreCacheAgeMillis) { 491 boolean scoreChanged = false; 492 if (scoringUiEnabled) { 493 scoreChanged = updateScores(scoreCache, maxScoreCacheAgeMillis); 494 } 495 return updateMetered(scoreCache) || scoreChanged; 496 } 497 498 /** 499 * Updates the AccessPoint rankingScore and speed, returning true if the data has changed. 500 * 501 * <p>Any cached {@link TimestampedScoredNetwork} objects older than the given max age in millis 502 * will be removed when this method is invoked. 503 * 504 * <p>Precondition: {@link #mRssi} is up to date before invoking this method. 505 * 506 * @param scoreCache The score cache to use to retrieve scores 507 * @param maxScoreCacheAgeMillis the maximum age in milliseconds of scores to consider when 508 * generating speed labels 509 * 510 * @return true if the set speed has changed 511 */ 512 private boolean updateScores(WifiNetworkScoreCache scoreCache, long maxScoreCacheAgeMillis) { 513 long nowMillis = SystemClock.elapsedRealtime(); 514 for (ScanResult result : mScanResults) { 515 ScoredNetwork score = scoreCache.getScoredNetwork(result); 516 if (score == null) { 517 continue; 518 } 519 TimestampedScoredNetwork timedScore = mScoredNetworkCache.get(result.BSSID); 520 if (timedScore == null) { 521 mScoredNetworkCache.put( 522 result.BSSID, new TimestampedScoredNetwork(score, nowMillis)); 523 } else { 524 // Update data since the has been seen in the score cache 525 timedScore.update(score, nowMillis); 526 } 527 } 528 529 // Remove old cached networks 530 long evictionCutoff = nowMillis - maxScoreCacheAgeMillis; 531 Iterator<TimestampedScoredNetwork> iterator = mScoredNetworkCache.values().iterator(); 532 iterator.forEachRemaining(timestampedScoredNetwork -> { 533 if (timestampedScoredNetwork.getUpdatedTimestampMillis() < evictionCutoff) { 534 iterator.remove(); 535 } 536 }); 537 538 return updateSpeed(); 539 } 540 541 /** 542 * Updates the internal speed, returning true if the update resulted in a speed label change. 543 */ 544 private boolean updateSpeed() { 545 int oldSpeed = mSpeed; 546 mSpeed = generateAverageSpeedForSsid(); 547 548 boolean changed = oldSpeed != mSpeed; 549 if(WifiTracker.sVerboseLogging && changed) { 550 Log.i(TAG, String.format("%s: Set speed to %d", ssid, mSpeed)); 551 } 552 return changed; 553 } 554 555 /** Creates a speed value for the current {@link #mRssi} by averaging all non zero badges. */ 556 @Speed private int generateAverageSpeedForSsid() { 557 if (mScoredNetworkCache.isEmpty()) { 558 return Speed.NONE; 559 } 560 561 if (Log.isLoggable(TAG, Log.DEBUG)) { 562 Log.d(TAG, String.format("Generating fallbackspeed for %s using cache: %s", 563 getSsidStr(), mScoredNetworkCache)); 564 } 565 566 // TODO(b/63073866): If flickering issues persist, consider mapping using getLevel rather 567 // than specific rssi value so score doesn't change without a visible wifi bar change. This 568 // issue is likely to be more evident for the active AP whose RSSI value is not half-lifed. 569 570 int count = 0; 571 int totalSpeed = 0; 572 for (TimestampedScoredNetwork timedScore : mScoredNetworkCache.values()) { 573 int speed = timedScore.getScore().calculateBadge(mRssi); 574 if (speed != Speed.NONE) { 575 count++; 576 totalSpeed += speed; 577 } 578 } 579 int speed = count == 0 ? Speed.NONE : totalSpeed / count; 580 if (WifiTracker.sVerboseLogging) { 581 Log.i(TAG, String.format("%s generated fallback speed is: %d", getSsidStr(), speed)); 582 } 583 return roundToClosestSpeedEnum(speed); 584 } 585 586 /** 587 * Updates the AccessPoint's metering based on {@link ScoredNetwork#meteredHint}, returning 588 * true if the metering changed. 589 */ 590 private boolean updateMetered(WifiNetworkScoreCache scoreCache) { 591 boolean oldMetering = mIsScoredNetworkMetered; 592 mIsScoredNetworkMetered = false; 593 594 if (isActive() && mInfo != null) { 595 NetworkKey key = NetworkKey.createFromWifiInfo(mInfo); 596 ScoredNetwork score = scoreCache.getScoredNetwork(key); 597 if (score != null) { 598 mIsScoredNetworkMetered |= score.meteredHint; 599 } 600 } else { 601 for (ScanResult result : mScanResults) { 602 ScoredNetwork score = scoreCache.getScoredNetwork(result); 603 if (score == null) { 604 continue; 605 } 606 mIsScoredNetworkMetered |= score.meteredHint; 607 } 608 } 609 return oldMetering == mIsScoredNetworkMetered; 610 } 611 612 public static String getKey(ScanResult result) { 613 StringBuilder builder = new StringBuilder(); 614 615 if (TextUtils.isEmpty(result.SSID)) { 616 builder.append(result.BSSID); 617 } else { 618 builder.append(result.SSID); 619 } 620 621 builder.append(',').append(getSecurity(result)); 622 return builder.toString(); 623 } 624 625 public String getKey() { 626 return mKey; 627 } 628 629 public boolean matches(WifiConfiguration config) { 630 if (config.isPasspoint() && mConfig != null && mConfig.isPasspoint()) { 631 return ssid.equals(removeDoubleQuotes(config.SSID)) && config.FQDN.equals(mConfig.FQDN); 632 } else { 633 return ssid.equals(removeDoubleQuotes(config.SSID)) 634 && security == getSecurity(config) 635 && (mConfig == null || mConfig.shared == config.shared); 636 } 637 } 638 639 public WifiConfiguration getConfig() { 640 return mConfig; 641 } 642 643 public String getPasspointFqdn() { 644 return mFqdn; 645 } 646 647 public void clearConfig() { 648 mConfig = null; 649 networkId = WifiConfiguration.INVALID_NETWORK_ID; 650 } 651 652 public WifiInfo getInfo() { 653 return mInfo; 654 } 655 656 /** 657 * Returns the number of levels to show for a Wifi icon, from 0 to {@link #SIGNAL_LEVELS}-1. 658 * 659 * <p>Use {@#isReachable()} to determine if an AccessPoint is in range, as this method will 660 * always return at least 0. 661 */ 662 public int getLevel() { 663 return WifiManager.calculateSignalLevel(mRssi, SIGNAL_LEVELS); 664 } 665 666 public int getRssi() { 667 return mRssi; 668 } 669 670 /** 671 * Returns the underlying scan result set. 672 * 673 * <p>Callers should not modify this set. 674 */ 675 public Set<ScanResult> getScanResults() { return mScanResults; } 676 677 public Map<String, TimestampedScoredNetwork> getScoredNetworkCache() { 678 return mScoredNetworkCache; 679 } 680 681 /** 682 * Updates {@link #mRssi}. 683 * 684 * <p>If the given connection is active, the existing value of {@link #mRssi} will be returned. 685 * If the given AccessPoint is not active, a value will be calculated from previous scan 686 * results, returning the best RSSI for all matching AccessPoints averaged with the previous 687 * value. If the access point is not connected and there are no scan results, the rssi will be 688 * set to {@link #UNREACHABLE_RSSI}. 689 */ 690 private void updateRssi() { 691 if (this.isActive()) { 692 return; 693 } 694 695 int rssi = UNREACHABLE_RSSI; 696 for (ScanResult result : mScanResults) { 697 if (result.level > rssi) { 698 rssi = result.level; 699 } 700 } 701 702 if (rssi != UNREACHABLE_RSSI && mRssi != UNREACHABLE_RSSI) { 703 mRssi = (mRssi + rssi) / 2; // half-life previous value 704 } else { 705 mRssi = rssi; 706 } 707 } 708 709 /** 710 * Returns if the network should be considered metered. 711 */ 712 public boolean isMetered() { 713 return mIsScoredNetworkMetered 714 || WifiConfiguration.isMetered(mConfig, mInfo); 715 } 716 717 public NetworkInfo getNetworkInfo() { 718 return mNetworkInfo; 719 } 720 721 public int getSecurity() { 722 return security; 723 } 724 725 public String getSecurityString(boolean concise) { 726 Context context = mContext; 727 if (isPasspoint() || isPasspointConfig()) { 728 return concise ? context.getString(R.string.wifi_security_short_eap) : 729 context.getString(R.string.wifi_security_eap); 730 } 731 switch(security) { 732 case SECURITY_EAP: 733 return concise ? context.getString(R.string.wifi_security_short_eap) : 734 context.getString(R.string.wifi_security_eap); 735 case SECURITY_PSK: 736 switch (pskType) { 737 case PSK_WPA: 738 return concise ? context.getString(R.string.wifi_security_short_wpa) : 739 context.getString(R.string.wifi_security_wpa); 740 case PSK_WPA2: 741 return concise ? context.getString(R.string.wifi_security_short_wpa2) : 742 context.getString(R.string.wifi_security_wpa2); 743 case PSK_WPA_WPA2: 744 return concise ? context.getString(R.string.wifi_security_short_wpa_wpa2) : 745 context.getString(R.string.wifi_security_wpa_wpa2); 746 case PSK_UNKNOWN: 747 default: 748 return concise ? context.getString(R.string.wifi_security_short_psk_generic) 749 : context.getString(R.string.wifi_security_psk_generic); 750 } 751 case SECURITY_WEP: 752 return concise ? context.getString(R.string.wifi_security_short_wep) : 753 context.getString(R.string.wifi_security_wep); 754 case SECURITY_NONE: 755 default: 756 return concise ? "" : context.getString(R.string.wifi_security_none); 757 } 758 } 759 760 public String getSsidStr() { 761 return ssid; 762 } 763 764 public String getBssid() { 765 return bssid; 766 } 767 768 public CharSequence getSsid() { 769 final SpannableString str = new SpannableString(ssid); 770 str.setSpan(new TtsSpan.TelephoneBuilder(ssid).build(), 0, ssid.length(), 771 Spannable.SPAN_INCLUSIVE_INCLUSIVE); 772 return str; 773 } 774 775 public String getConfigName() { 776 if (mConfig != null && mConfig.isPasspoint()) { 777 return mConfig.providerFriendlyName; 778 } else if (mFqdn != null) { 779 return mProviderFriendlyName; 780 } else { 781 return ssid; 782 } 783 } 784 785 public DetailedState getDetailedState() { 786 if (mNetworkInfo != null) { 787 return mNetworkInfo.getDetailedState(); 788 } 789 Log.w(TAG, "NetworkInfo is null, cannot return detailed state"); 790 return null; 791 } 792 793 public boolean isCarrierAp() { 794 return mIsCarrierAp; 795 } 796 797 public int getCarrierApEapType() { 798 return mCarrierApEapType; 799 } 800 801 public String getCarrierName() { 802 return mCarrierName; 803 } 804 805 public String getSavedNetworkSummary() { 806 WifiConfiguration config = mConfig; 807 if (config != null) { 808 PackageManager pm = mContext.getPackageManager(); 809 String systemName = pm.getNameForUid(android.os.Process.SYSTEM_UID); 810 int userId = UserHandle.getUserId(config.creatorUid); 811 ApplicationInfo appInfo = null; 812 if (config.creatorName != null && config.creatorName.equals(systemName)) { 813 appInfo = mContext.getApplicationInfo(); 814 } else { 815 try { 816 IPackageManager ipm = AppGlobals.getPackageManager(); 817 appInfo = ipm.getApplicationInfo(config.creatorName, 0 /* flags */, userId); 818 } catch (RemoteException rex) { 819 } 820 } 821 if (appInfo != null && 822 !appInfo.packageName.equals(mContext.getString(R.string.settings_package)) && 823 !appInfo.packageName.equals( 824 mContext.getString(R.string.certinstaller_package))) { 825 return mContext.getString(R.string.saved_network, appInfo.loadLabel(pm)); 826 } 827 } 828 return ""; 829 } 830 831 public String getSummary() { 832 return getSettingsSummary(mConfig); 833 } 834 835 public String getSettingsSummary() { 836 return getSettingsSummary(mConfig); 837 } 838 839 private String getSettingsSummary(WifiConfiguration config) { 840 // Update to new summary 841 StringBuilder summary = new StringBuilder(); 842 843 if (isActive() && config != null && config.isPasspoint()) { 844 // This is the active connection on passpoint 845 summary.append(getSummary(mContext, getDetailedState(), 846 false, config.providerFriendlyName)); 847 } else if (isActive() && config != null && getDetailedState() == DetailedState.CONNECTED 848 && mIsCarrierAp) { 849 summary.append(String.format(mContext.getString(R.string.connected_via_carrier), mCarrierName)); 850 } else if (isActive()) { 851 // This is the active connection on non-passpoint network 852 summary.append(getSummary(mContext, getDetailedState(), 853 mInfo != null && mInfo.isEphemeral())); 854 } else if (config != null && config.isPasspoint() 855 && config.getNetworkSelectionStatus().isNetworkEnabled()) { 856 String format = mContext.getString(R.string.available_via_passpoint); 857 summary.append(String.format(format, config.providerFriendlyName)); 858 } else if (config != null && config.hasNoInternetAccess()) { 859 int messageID = config.getNetworkSelectionStatus().isNetworkPermanentlyDisabled() 860 ? R.string.wifi_no_internet_no_reconnect 861 : R.string.wifi_no_internet; 862 summary.append(mContext.getString(messageID)); 863 } else if (config != null && !config.getNetworkSelectionStatus().isNetworkEnabled()) { 864 WifiConfiguration.NetworkSelectionStatus networkStatus = 865 config.getNetworkSelectionStatus(); 866 switch (networkStatus.getNetworkSelectionDisableReason()) { 867 case WifiConfiguration.NetworkSelectionStatus.DISABLED_AUTHENTICATION_FAILURE: 868 summary.append(mContext.getString(R.string.wifi_disabled_password_failure)); 869 break; 870 case WifiConfiguration.NetworkSelectionStatus.DISABLED_BY_WRONG_PASSWORD: 871 summary.append(mContext.getString(R.string.wifi_check_password_try_again)); 872 break; 873 case WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE: 874 case WifiConfiguration.NetworkSelectionStatus.DISABLED_DNS_FAILURE: 875 summary.append(mContext.getString(R.string.wifi_disabled_network_failure)); 876 break; 877 case WifiConfiguration.NetworkSelectionStatus.DISABLED_ASSOCIATION_REJECTION: 878 summary.append(mContext.getString(R.string.wifi_disabled_generic)); 879 break; 880 } 881 } else if (config != null && config.getNetworkSelectionStatus().isNotRecommended()) { 882 summary.append(mContext.getString(R.string.wifi_disabled_by_recommendation_provider)); 883 } else if (mIsCarrierAp) { 884 summary.append(String.format(mContext.getString(R.string.available_via_carrier), mCarrierName)); 885 } else if (!isReachable()) { // Wifi out of range 886 summary.append(mContext.getString(R.string.wifi_not_in_range)); 887 } else { // In range, not disabled. 888 if (config != null) { // Is saved network 889 // Last attempt to connect to this failed. Show reason why 890 switch (config.recentFailure.getAssociationStatus()) { 891 case WifiConfiguration.RecentFailure.STATUS_AP_UNABLE_TO_HANDLE_NEW_STA: 892 summary.append(mContext.getString( 893 R.string.wifi_ap_unable_to_handle_new_sta)); 894 break; 895 default: 896 // "Saved" 897 summary.append(mContext.getString(R.string.wifi_remembered)); 898 break; 899 } 900 } 901 } 902 903 if (WifiTracker.sVerboseLogging) { 904 summary.append(WifiUtils.buildLoggingSummary(this, config)); 905 } 906 907 // If Speed label and summary are both present, use the preference combination to combine 908 // the two, else return the non-null one. 909 if (getSpeedLabel() != null && summary.length() != 0) { 910 return mContext.getResources().getString( 911 R.string.preference_summary_default_combination, 912 getSpeedLabel(), 913 summary.toString()); 914 } else if (getSpeedLabel() != null) { 915 return getSpeedLabel(); 916 } else { 917 return summary.toString(); 918 } 919 } 920 921 /** 922 * Return whether this is the active connection. 923 * For ephemeral connections (networkId is invalid), this returns false if the network is 924 * disconnected. 925 */ 926 public boolean isActive() { 927 return mNetworkInfo != null && 928 (networkId != WifiConfiguration.INVALID_NETWORK_ID || 929 mNetworkInfo.getState() != State.DISCONNECTED); 930 } 931 932 public boolean isConnectable() { 933 return getLevel() != -1 && getDetailedState() == null; 934 } 935 936 public boolean isEphemeral() { 937 return mInfo != null && mInfo.isEphemeral() && 938 mNetworkInfo != null && mNetworkInfo.getState() != State.DISCONNECTED; 939 } 940 941 /** 942 * Return true if this AccessPoint represents a Passpoint AP. 943 */ 944 public boolean isPasspoint() { 945 return mConfig != null && mConfig.isPasspoint(); 946 } 947 948 /** 949 * Return true if this AccessPoint represents a Passpoint provider configuration. 950 */ 951 public boolean isPasspointConfig() { 952 return mFqdn != null; 953 } 954 955 /** 956 * Return whether the given {@link WifiInfo} is for this access point. 957 * If the current AP does not have a network Id then the config is used to 958 * match based on SSID and security. 959 */ 960 private boolean isInfoForThisAccessPoint(WifiConfiguration config, WifiInfo info) { 961 if (isPasspoint() == false && networkId != WifiConfiguration.INVALID_NETWORK_ID) { 962 return networkId == info.getNetworkId(); 963 } else if (config != null) { 964 return matches(config); 965 } 966 else { 967 // Might be an ephemeral connection with no WifiConfiguration. Try matching on SSID. 968 // (Note that we only do this if the WifiConfiguration explicitly equals INVALID). 969 // TODO: Handle hex string SSIDs. 970 return ssid.equals(removeDoubleQuotes(info.getSSID())); 971 } 972 } 973 974 public boolean isSaved() { 975 return networkId != WifiConfiguration.INVALID_NETWORK_ID; 976 } 977 978 public Object getTag() { 979 return mTag; 980 } 981 982 public void setTag(Object tag) { 983 mTag = tag; 984 } 985 986 /** 987 * Generate and save a default wifiConfiguration with common values. 988 * Can only be called for unsecured networks. 989 */ 990 public void generateOpenNetworkConfig() { 991 if (security != SECURITY_NONE) 992 throw new IllegalStateException(); 993 if (mConfig != null) 994 return; 995 mConfig = new WifiConfiguration(); 996 mConfig.SSID = AccessPoint.convertToQuotedString(ssid); 997 mConfig.allowedKeyManagement.set(KeyMgmt.NONE); 998 } 999 1000 public void saveWifiState(Bundle savedState) { 1001 if (ssid != null) savedState.putString(KEY_SSID, getSsidStr()); 1002 savedState.putInt(KEY_SECURITY, security); 1003 savedState.putInt(KEY_SPEED, mSpeed); 1004 savedState.putInt(KEY_PSKTYPE, pskType); 1005 if (mConfig != null) savedState.putParcelable(KEY_CONFIG, mConfig); 1006 savedState.putParcelable(KEY_WIFIINFO, mInfo); 1007 savedState.putParcelableArray(KEY_SCANRESULTS, 1008 mScanResults.toArray(new Parcelable[mScanResults.size()])); 1009 savedState.putParcelableArrayList(KEY_SCOREDNETWORKCACHE, 1010 new ArrayList<>(mScoredNetworkCache.values())); 1011 if (mNetworkInfo != null) { 1012 savedState.putParcelable(KEY_NETWORKINFO, mNetworkInfo); 1013 } 1014 if (mFqdn != null) { 1015 savedState.putString(KEY_FQDN, mFqdn); 1016 } 1017 if (mProviderFriendlyName != null) { 1018 savedState.putString(KEY_PROVIDER_FRIENDLY_NAME, mProviderFriendlyName); 1019 } 1020 savedState.putBoolean(KEY_IS_CARRIER_AP, mIsCarrierAp); 1021 savedState.putInt(KEY_CARRIER_AP_EAP_TYPE, mCarrierApEapType); 1022 savedState.putString(KEY_CARRIER_NAME, mCarrierName); 1023 } 1024 1025 public void setListener(AccessPointListener listener) { 1026 mAccessPointListener = listener; 1027 } 1028 1029 /** 1030 * Sets {@link #mScanResults} to the given collection. 1031 * 1032 * @param scanResults a collection of scan results to add to the internal set 1033 * @throws IllegalArgumentException if any of the given ScanResults did not belong to this AP 1034 */ 1035 void setScanResults(Collection<ScanResult> scanResults) { 1036 1037 // Validate scan results are for current AP only 1038 String key = getKey(); 1039 for (ScanResult result : scanResults) { 1040 String scanResultKey = AccessPoint.getKey(result); 1041 if (!mKey.equals(scanResultKey)) { 1042 throw new IllegalArgumentException( 1043 String.format("ScanResult %s\nkey of %s did not match current AP key %s", 1044 result, scanResultKey, key)); 1045 } 1046 } 1047 1048 1049 int oldLevel = getLevel(); 1050 mScanResults.clear(); 1051 mScanResults.addAll(scanResults); 1052 updateRssi(); 1053 int newLevel = getLevel(); 1054 1055 // If newLevel is 0, there will be no displayed Preference since the AP is unreachable 1056 if (newLevel > 0 && newLevel != oldLevel) { 1057 // Only update labels on visible rssi changes 1058 updateSpeed(); 1059 if (mAccessPointListener != null) { 1060 mAccessPointListener.onLevelChanged(this); 1061 } 1062 } 1063 1064 if (mAccessPointListener != null) { 1065 mAccessPointListener.onAccessPointChanged(this); 1066 } 1067 1068 if (!scanResults.isEmpty()) { 1069 ScanResult result = scanResults.iterator().next(); 1070 1071 // This flag only comes from scans, is not easily saved in config 1072 if (security == SECURITY_PSK) { 1073 pskType = getPskType(result); 1074 } 1075 1076 // The carrier info in the ScanResult is set by the platform based on the SSID and will 1077 // always be the same for all matching scan results. 1078 mIsCarrierAp = result.isCarrierAp; 1079 mCarrierApEapType = result.carrierApEapType; 1080 mCarrierName = result.carrierName; 1081 } 1082 } 1083 1084 /** Attempt to update the AccessPoint and return true if an update occurred. */ 1085 public boolean update( 1086 @Nullable WifiConfiguration config, WifiInfo info, NetworkInfo networkInfo) { 1087 1088 boolean updated = false; 1089 final int oldLevel = getLevel(); 1090 if (info != null && isInfoForThisAccessPoint(config, info)) { 1091 updated = (mInfo == null); 1092 if (mConfig != config) { 1093 // We do not set updated = true as we do not want to increase the amount of sorting 1094 // and copying performed in WifiTracker at this time. If issues involving refresh 1095 // are still seen, we will investigate further. 1096 update(config); // Notifies the AccessPointListener of the change 1097 } 1098 if (mRssi != info.getRssi() && info.getRssi() != WifiInfo.INVALID_RSSI) { 1099 mRssi = info.getRssi(); 1100 updated = true; 1101 } else if (mNetworkInfo != null && networkInfo != null 1102 && mNetworkInfo.getDetailedState() != networkInfo.getDetailedState()) { 1103 updated = true; 1104 } 1105 mInfo = info; 1106 mNetworkInfo = networkInfo; 1107 } else if (mInfo != null) { 1108 updated = true; 1109 mInfo = null; 1110 mNetworkInfo = null; 1111 } 1112 if (updated && mAccessPointListener != null) { 1113 mAccessPointListener.onAccessPointChanged(this); 1114 1115 if (oldLevel != getLevel() /* current level */) { 1116 mAccessPointListener.onLevelChanged(this); 1117 } 1118 } 1119 1120 return updated; 1121 } 1122 1123 void update(@Nullable WifiConfiguration config) { 1124 mConfig = config; 1125 networkId = config != null ? config.networkId : WifiConfiguration.INVALID_NETWORK_ID; 1126 if (mAccessPointListener != null) { 1127 mAccessPointListener.onAccessPointChanged(this); 1128 } 1129 } 1130 1131 @VisibleForTesting 1132 void setRssi(int rssi) { 1133 mRssi = rssi; 1134 } 1135 1136 /** Sets the rssi to {@link #UNREACHABLE_RSSI}. */ 1137 void setUnreachable() { 1138 setRssi(AccessPoint.UNREACHABLE_RSSI); 1139 } 1140 1141 int getSpeed() { return mSpeed;} 1142 1143 @Nullable 1144 String getSpeedLabel() { 1145 return getSpeedLabel(mSpeed); 1146 } 1147 1148 @Nullable 1149 @Speed 1150 private int roundToClosestSpeedEnum(int speed) { 1151 if (speed < Speed.SLOW) { 1152 return Speed.NONE; 1153 } else if (speed < (Speed.SLOW + Speed.MODERATE) / 2) { 1154 return Speed.SLOW; 1155 } else if (speed < (Speed.MODERATE + Speed.FAST) / 2) { 1156 return Speed.MODERATE; 1157 } else if (speed < (Speed.FAST + Speed.VERY_FAST) / 2) { 1158 return Speed.FAST; 1159 } else { 1160 return Speed.VERY_FAST; 1161 } 1162 } 1163 1164 @Nullable 1165 String getSpeedLabel(@Speed int speed) { 1166 switch (speed) { 1167 case Speed.VERY_FAST: 1168 return mContext.getString(R.string.speed_label_very_fast); 1169 case Speed.FAST: 1170 return mContext.getString(R.string.speed_label_fast); 1171 case Speed.MODERATE: 1172 return mContext.getString(R.string.speed_label_okay); 1173 case Speed.SLOW: 1174 return mContext.getString(R.string.speed_label_slow); 1175 case Speed.NONE: 1176 default: 1177 return null; 1178 } 1179 } 1180 1181 /** Return true if the current RSSI is reachable, and false otherwise. */ 1182 public boolean isReachable() { 1183 return mRssi != UNREACHABLE_RSSI; 1184 } 1185 1186 public static String getSummary(Context context, String ssid, DetailedState state, 1187 boolean isEphemeral, String passpointProvider) { 1188 if (state == DetailedState.CONNECTED && ssid == null) { 1189 if (TextUtils.isEmpty(passpointProvider) == false) { 1190 // Special case for connected + passpoint networks. 1191 String format = context.getString(R.string.connected_via_passpoint); 1192 return String.format(format, passpointProvider); 1193 } else if (isEphemeral) { 1194 // Special case for connected + ephemeral networks. 1195 final NetworkScoreManager networkScoreManager = context.getSystemService( 1196 NetworkScoreManager.class); 1197 NetworkScorerAppData scorer = networkScoreManager.getActiveScorer(); 1198 if (scorer != null && scorer.getRecommendationServiceLabel() != null) { 1199 String format = context.getString(R.string.connected_via_network_scorer); 1200 return String.format(format, scorer.getRecommendationServiceLabel()); 1201 } else { 1202 return context.getString(R.string.connected_via_network_scorer_default); 1203 } 1204 } 1205 } 1206 1207 // Case when there is wifi connected without internet connectivity. 1208 final ConnectivityManager cm = (ConnectivityManager) 1209 context.getSystemService(Context.CONNECTIVITY_SERVICE); 1210 if (state == DetailedState.CONNECTED) { 1211 IWifiManager wifiManager = IWifiManager.Stub.asInterface( 1212 ServiceManager.getService(Context.WIFI_SERVICE)); 1213 NetworkCapabilities nc = null; 1214 1215 try { 1216 nc = cm.getNetworkCapabilities(wifiManager.getCurrentNetwork()); 1217 } catch (RemoteException e) {} 1218 1219 if (nc != null) { 1220 if (nc.hasCapability(nc.NET_CAPABILITY_CAPTIVE_PORTAL)) { 1221 int id = context.getResources() 1222 .getIdentifier("network_available_sign_in", "string", "android"); 1223 return context.getString(id); 1224 } else if (!nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED)) { 1225 return context.getString(R.string.wifi_connected_no_internet); 1226 } 1227 } 1228 } 1229 if (state == null) { 1230 Log.w(TAG, "state is null, returning empty summary"); 1231 return ""; 1232 } 1233 String[] formats = context.getResources().getStringArray((ssid == null) 1234 ? R.array.wifi_status : R.array.wifi_status_with_ssid); 1235 int index = state.ordinal(); 1236 1237 if (index >= formats.length || formats[index].length() == 0) { 1238 return ""; 1239 } 1240 return String.format(formats[index], ssid); 1241 } 1242 1243 public static String getSummary(Context context, DetailedState state, boolean isEphemeral) { 1244 return getSummary(context, null, state, isEphemeral, null); 1245 } 1246 1247 public static String getSummary(Context context, DetailedState state, boolean isEphemeral, 1248 String passpointProvider) { 1249 return getSummary(context, null, state, isEphemeral, passpointProvider); 1250 } 1251 1252 public static String convertToQuotedString(String string) { 1253 return "\"" + string + "\""; 1254 } 1255 1256 private static int getPskType(ScanResult result) { 1257 boolean wpa = result.capabilities.contains("WPA-PSK"); 1258 boolean wpa2 = result.capabilities.contains("WPA2-PSK"); 1259 if (wpa2 && wpa) { 1260 return PSK_WPA_WPA2; 1261 } else if (wpa2) { 1262 return PSK_WPA2; 1263 } else if (wpa) { 1264 return PSK_WPA; 1265 } else { 1266 Log.w(TAG, "Received abnormal flag string: " + result.capabilities); 1267 return PSK_UNKNOWN; 1268 } 1269 } 1270 1271 private static int getSecurity(ScanResult result) { 1272 if (result.capabilities.contains("WEP")) { 1273 return SECURITY_WEP; 1274 } else if (result.capabilities.contains("PSK")) { 1275 return SECURITY_PSK; 1276 } else if (result.capabilities.contains("EAP")) { 1277 return SECURITY_EAP; 1278 } 1279 return SECURITY_NONE; 1280 } 1281 1282 static int getSecurity(WifiConfiguration config) { 1283 if (config.allowedKeyManagement.get(KeyMgmt.WPA_PSK)) { 1284 return SECURITY_PSK; 1285 } 1286 if (config.allowedKeyManagement.get(KeyMgmt.WPA_EAP) || 1287 config.allowedKeyManagement.get(KeyMgmt.IEEE8021X)) { 1288 return SECURITY_EAP; 1289 } 1290 return (config.wepKeys[0] != null) ? SECURITY_WEP : SECURITY_NONE; 1291 } 1292 1293 public static String securityToString(int security, int pskType) { 1294 if (security == SECURITY_WEP) { 1295 return "WEP"; 1296 } else if (security == SECURITY_PSK) { 1297 if (pskType == PSK_WPA) { 1298 return "WPA"; 1299 } else if (pskType == PSK_WPA2) { 1300 return "WPA2"; 1301 } else if (pskType == PSK_WPA_WPA2) { 1302 return "WPA_WPA2"; 1303 } 1304 return "PSK"; 1305 } else if (security == SECURITY_EAP) { 1306 return "EAP"; 1307 } 1308 return "NONE"; 1309 } 1310 1311 static String removeDoubleQuotes(String string) { 1312 if (TextUtils.isEmpty(string)) { 1313 return ""; 1314 } 1315 int length = string.length(); 1316 if ((length > 1) && (string.charAt(0) == '"') 1317 && (string.charAt(length - 1) == '"')) { 1318 return string.substring(1, length - 1); 1319 } 1320 return string; 1321 } 1322 1323 public interface AccessPointListener { 1324 void onAccessPointChanged(AccessPoint accessPoint); 1325 void onLevelChanged(AccessPoint accessPoint); 1326 } 1327} 1328