AccessPoint.java revision 7dfc73f7c9a3cef9c987cef8eed8766cf62a8bdc
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.WifiKey; 36import android.net.wifi.IWifiManager; 37import android.net.wifi.ScanResult; 38import android.net.wifi.WifiConfiguration; 39import android.net.wifi.WifiConfiguration.KeyMgmt; 40import android.net.wifi.WifiEnterpriseConfig; 41import android.net.wifi.WifiInfo; 42import android.net.wifi.WifiManager; 43import android.net.wifi.WifiNetworkScoreCache; 44import android.net.wifi.hotspot2.PasspointConfiguration; 45import android.os.Bundle; 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.Log; 56 57import com.android.internal.annotations.VisibleForTesting; 58import com.android.settingslib.R; 59 60import java.lang.annotation.Retention; 61import java.lang.annotation.RetentionPolicy; 62import java.util.ArrayList; 63import java.util.HashMap; 64import java.util.Iterator; 65import java.util.Map; 66import java.util.Objects; 67import java.util.concurrent.ConcurrentHashMap; 68import java.util.concurrent.atomic.AtomicInteger; 69 70 71public class AccessPoint implements Comparable<AccessPoint> { 72 static final String TAG = "SettingsLib.AccessPoint"; 73 74 /** 75 * Lower bound on the 2.4 GHz (802.11b/g/n) WLAN channels 76 */ 77 public static final int LOWER_FREQ_24GHZ = 2400; 78 79 /** 80 * Upper bound on the 2.4 GHz (802.11b/g/n) WLAN channels 81 */ 82 public static final int HIGHER_FREQ_24GHZ = 2500; 83 84 /** 85 * Lower bound on the 5.0 GHz (802.11a/h/j/n/ac) WLAN channels 86 */ 87 public static final int LOWER_FREQ_5GHZ = 4900; 88 89 /** 90 * Upper bound on the 5.0 GHz (802.11a/h/j/n/ac) WLAN channels 91 */ 92 public static final int HIGHER_FREQ_5GHZ = 5900; 93 94 @IntDef({Speed.NONE, Speed.SLOW, Speed.MODERATE, Speed.FAST, Speed.VERY_FAST}) 95 @Retention(RetentionPolicy.SOURCE) 96 public @interface Speed { 97 /** 98 * Constant value representing an unlabeled / unscored network. 99 */ 100 int NONE = 0; 101 /** 102 * Constant value representing a slow speed network connection. 103 */ 104 int SLOW = 5; 105 /** 106 * Constant value representing a medium speed network connection. 107 */ 108 int MODERATE = 10; 109 /** 110 * Constant value representing a fast speed network connection. 111 */ 112 int FAST = 20; 113 /** 114 * Constant value representing a very fast speed network connection. 115 */ 116 int VERY_FAST = 30; 117 } 118 119 /** 120 * Experimental: we should be able to show the user the list of BSSIDs and bands 121 * for that SSID. 122 * For now this data is used only with Verbose Logging so as to show the band and number 123 * of BSSIDs on which that network is seen. 124 */ 125 private final ConcurrentHashMap<String, ScanResult> mScanResultCache = 126 new ConcurrentHashMap<String, ScanResult>(32); 127 128 /** 129 * Map of BSSIDs to scored networks for individual bssids. 130 * 131 * <p>This cache should not be evicted with scan results, as the values here are used to 132 * generate a fallback in the absence of scores for the visible APs. 133 */ 134 // TODO(b/63073866): change this to have score eviction logic 135 private final Map<String, ScoredNetwork> mScoredNetworkCache = new HashMap<>(); 136 137 /** Maximum age of scan results to hold onto while actively scanning. **/ 138 private static final long MAX_SCAN_RESULT_AGE_MS = 15000; 139 140 static final String KEY_NETWORKINFO = "key_networkinfo"; 141 static final String KEY_WIFIINFO = "key_wifiinfo"; 142 static final String KEY_SCANRESULT = "key_scanresult"; 143 static final String KEY_SSID = "key_ssid"; 144 static final String KEY_SECURITY = "key_security"; 145 static final String KEY_SPEED = "key_speed"; 146 static final String KEY_PSKTYPE = "key_psktype"; 147 static final String KEY_SCANRESULTCACHE = "key_scanresultcache"; 148 static final String KEY_SCOREDNETWORKCACHE = "key_scorednetworkcache"; 149 static final String KEY_CONFIG = "key_config"; 150 static final String KEY_FQDN = "key_fqdn"; 151 static final String KEY_PROVIDER_FRIENDLY_NAME = "key_provider_friendly_name"; 152 static final String KEY_IS_CARRIER_AP = "key_is_carrier_ap"; 153 static final String KEY_CARRIER_AP_EAP_TYPE = "key_carrier_ap_eap_type"; 154 static final String KEY_CARRIER_NAME = "key_carrier_name"; 155 static final AtomicInteger sLastId = new AtomicInteger(0); 156 157 /** 158 * These values are matched in string arrays -- changes must be kept in sync 159 */ 160 public static final int SECURITY_NONE = 0; 161 public static final int SECURITY_WEP = 1; 162 public static final int SECURITY_PSK = 2; 163 public static final int SECURITY_EAP = 3; 164 165 private static final int PSK_UNKNOWN = 0; 166 private static final int PSK_WPA = 1; 167 private static final int PSK_WPA2 = 2; 168 private static final int PSK_WPA_WPA2 = 3; 169 170 /** 171 * The number of distinct wifi levels. 172 * 173 * <p>Must keep in sync with {@link R.array.wifi_signal} and {@link WifiManager#RSSI_LEVELS}. 174 */ 175 public static final int SIGNAL_LEVELS = 5; 176 177 public static final int UNREACHABLE_RSSI = Integer.MIN_VALUE; 178 179 private final Context mContext; 180 181 private String ssid; 182 private String bssid; 183 private int security; 184 private int networkId = WifiConfiguration.INVALID_NETWORK_ID; 185 186 private int pskType = PSK_UNKNOWN; 187 188 private WifiConfiguration mConfig; 189 190 private int mRssi = UNREACHABLE_RSSI; 191 192 private WifiInfo mInfo; 193 private NetworkInfo mNetworkInfo; 194 AccessPointListener mAccessPointListener; 195 196 private Object mTag; 197 198 @Speed private int mSpeed = Speed.NONE; 199 private boolean mIsScoredNetworkMetered = false; 200 201 // used to co-relate internal vs returned accesspoint. 202 int mId; 203 204 /** 205 * Information associated with the {@link PasspointConfiguration}. Only maintaining 206 * the relevant info to preserve spaces. 207 */ 208 private String mFqdn; 209 private String mProviderFriendlyName; 210 211 private boolean mIsCarrierAp = false; 212 /** 213 * The EAP type {@link WifiEnterpriseConfig.Eap} associated with this AP if it is a carrier AP. 214 */ 215 private int mCarrierApEapType = WifiEnterpriseConfig.Eap.NONE; 216 private String mCarrierName = null; 217 218 public AccessPoint(Context context, Bundle savedState) { 219 mContext = context; 220 mConfig = savedState.getParcelable(KEY_CONFIG); 221 if (mConfig != null) { 222 loadConfig(mConfig); 223 } 224 if (savedState.containsKey(KEY_SSID)) { 225 ssid = savedState.getString(KEY_SSID); 226 } 227 if (savedState.containsKey(KEY_SECURITY)) { 228 security = savedState.getInt(KEY_SECURITY); 229 } 230 if (savedState.containsKey(KEY_SPEED)) { 231 mSpeed = savedState.getInt(KEY_SPEED); 232 } 233 if (savedState.containsKey(KEY_PSKTYPE)) { 234 pskType = savedState.getInt(KEY_PSKTYPE); 235 } 236 mInfo = savedState.getParcelable(KEY_WIFIINFO); 237 if (savedState.containsKey(KEY_NETWORKINFO)) { 238 mNetworkInfo = savedState.getParcelable(KEY_NETWORKINFO); 239 } 240 if (savedState.containsKey(KEY_SCANRESULTCACHE)) { 241 ArrayList<ScanResult> scanResultArrayList = 242 savedState.getParcelableArrayList(KEY_SCANRESULTCACHE); 243 mScanResultCache.clear(); 244 for (ScanResult result : scanResultArrayList) { 245 mScanResultCache.put(result.BSSID, result); 246 } 247 } 248 if (savedState.containsKey(KEY_SCOREDNETWORKCACHE)) { 249 ArrayList<ScoredNetwork> scoredNetworkArrayList = 250 savedState.getParcelableArrayList(KEY_SCOREDNETWORKCACHE); 251 for (ScoredNetwork score : scoredNetworkArrayList) { 252 mScoredNetworkCache.put(score.networkKey.wifiKey.bssid, score); 253 } 254 } 255 if (savedState.containsKey(KEY_FQDN)) { 256 mFqdn = savedState.getString(KEY_FQDN); 257 } 258 if (savedState.containsKey(KEY_PROVIDER_FRIENDLY_NAME)) { 259 mProviderFriendlyName = savedState.getString(KEY_PROVIDER_FRIENDLY_NAME); 260 } 261 if (savedState.containsKey(KEY_IS_CARRIER_AP)) { 262 mIsCarrierAp = savedState.getBoolean(KEY_IS_CARRIER_AP); 263 } 264 if (savedState.containsKey(KEY_CARRIER_AP_EAP_TYPE)) { 265 mCarrierApEapType = savedState.getInt(KEY_CARRIER_AP_EAP_TYPE); 266 } 267 if (savedState.containsKey(KEY_CARRIER_NAME)) { 268 mCarrierName = savedState.getString(KEY_CARRIER_NAME); 269 } 270 update(mConfig, mInfo, mNetworkInfo); 271 272 // Do not evict old scan results on initial creation 273 updateRssi(); 274 mId = sLastId.incrementAndGet(); 275 } 276 277 public AccessPoint(Context context, WifiConfiguration config) { 278 mContext = context; 279 loadConfig(config); 280 mId = sLastId.incrementAndGet(); 281 } 282 283 /** 284 * Initialize an AccessPoint object for a {@link PasspointConfiguration}. This is mainly 285 * used by "Saved Networks" page for managing the saved {@link PasspointConfiguration}. 286 */ 287 public AccessPoint(Context context, PasspointConfiguration config) { 288 mContext = context; 289 mFqdn = config.getHomeSp().getFqdn(); 290 mProviderFriendlyName = config.getHomeSp().getFriendlyName(); 291 mId = sLastId.incrementAndGet(); 292 } 293 294 AccessPoint(Context context, AccessPoint other) { 295 mContext = context; 296 copyFrom(other); 297 } 298 299 AccessPoint(Context context, ScanResult result) { 300 mContext = context; 301 initWithScanResult(result); 302 mId = sLastId.incrementAndGet(); 303 } 304 305 /** 306 * Copy accesspoint information. NOTE: We do not copy tag information because that is never 307 * set on the internal copy. 308 * @param that 309 */ 310 void copyFrom(AccessPoint that) { 311 that.evictOldScanResults(); 312 this.ssid = that.ssid; 313 this.bssid = that.bssid; 314 this.security = that.security; 315 this.networkId = that.networkId; 316 this.pskType = that.pskType; 317 this.mConfig = that.mConfig; //TODO: Watch out, this object is mutated. 318 this.mRssi = that.mRssi; 319 this.mInfo = that.mInfo; 320 this.mNetworkInfo = that.mNetworkInfo; 321 this.mScanResultCache.clear(); 322 this.mScanResultCache.putAll(that.mScanResultCache); 323 this.mScoredNetworkCache.clear(); 324 this.mScoredNetworkCache.putAll(that.mScoredNetworkCache); 325 this.mId = that.mId; 326 this.mSpeed = that.mSpeed; 327 this.mIsScoredNetworkMetered = that.mIsScoredNetworkMetered; 328 this.mIsCarrierAp = that.mIsCarrierAp; 329 this.mCarrierApEapType = that.mCarrierApEapType; 330 this.mCarrierName = that.mCarrierName; 331 } 332 333 /** 334 * Returns a negative integer, zero, or a positive integer if this AccessPoint is less than, 335 * equal to, or greater than the other AccessPoint. 336 * 337 * Sort order rules for AccessPoints: 338 * 1. Active before inactive 339 * 2. Reachable before unreachable 340 * 3. Saved before unsaved 341 * 4. Network speed value 342 * 5. Stronger signal before weaker signal 343 * 6. SSID alphabetically 344 * 345 * Note that AccessPoints with a signal are usually also Reachable, 346 * and will thus appear before unreachable saved AccessPoints. 347 */ 348 @Override 349 public int compareTo(@NonNull AccessPoint other) { 350 // Active one goes first. 351 if (isActive() && !other.isActive()) return -1; 352 if (!isActive() && other.isActive()) return 1; 353 354 // Reachable one goes before unreachable one. 355 if (isReachable() && !other.isReachable()) return -1; 356 if (!isReachable() && other.isReachable()) return 1; 357 358 // Configured (saved) one goes before unconfigured one. 359 if (isSaved() && !other.isSaved()) return -1; 360 if (!isSaved() && other.isSaved()) return 1; 361 362 // Faster speeds go before slower speeds - but only if visible change in speed label 363 if (getSpeed() != other.getSpeed()) { 364 return other.getSpeed() - getSpeed(); 365 } 366 367 // Sort by signal strength, bucketed by level 368 int difference = WifiManager.calculateSignalLevel(other.mRssi, SIGNAL_LEVELS) 369 - WifiManager.calculateSignalLevel(mRssi, SIGNAL_LEVELS); 370 if (difference != 0) { 371 return difference; 372 } 373 374 // Sort by ssid. 375 difference = getSsidStr().compareToIgnoreCase(other.getSsidStr()); 376 if (difference != 0) { 377 return difference; 378 } 379 380 // Do a case sensitive comparison to distinguish SSIDs that differ in case only 381 return getSsidStr().compareTo(other.getSsidStr()); 382 } 383 384 @Override 385 public boolean equals(Object other) { 386 if (!(other instanceof AccessPoint)) return false; 387 return (this.compareTo((AccessPoint) other) == 0); 388 } 389 390 @Override 391 public int hashCode() { 392 int result = 0; 393 if (mInfo != null) result += 13 * mInfo.hashCode(); 394 result += 19 * mRssi; 395 result += 23 * networkId; 396 result += 29 * ssid.hashCode(); 397 return result; 398 } 399 400 @Override 401 public String toString() { 402 StringBuilder builder = new StringBuilder().append("AccessPoint(") 403 .append(ssid); 404 if (bssid != null) { 405 builder.append(":").append(bssid); 406 } 407 if (isSaved()) { 408 builder.append(',').append("saved"); 409 } 410 if (isActive()) { 411 builder.append(',').append("active"); 412 } 413 if (isEphemeral()) { 414 builder.append(',').append("ephemeral"); 415 } 416 if (isConnectable()) { 417 builder.append(',').append("connectable"); 418 } 419 if (security != SECURITY_NONE) { 420 builder.append(',').append(securityToString(security, pskType)); 421 } 422 builder.append(",level=").append(getLevel()); 423 if (mSpeed != Speed.NONE) { 424 builder.append(",speed=").append(mSpeed); 425 } 426 builder.append(",metered=").append(isMetered()); 427 428 return builder.append(')').toString(); 429 } 430 431 /** 432 * Updates the AccessPoint rankingScore, metering, and speed, returning true if the data has 433 * changed. 434 * 435 * @param scoreCache The score cache to use to retrieve scores. 436 * @param scoringUiEnabled Whether to show scoring and badging UI. 437 */ 438 boolean update(WifiNetworkScoreCache scoreCache, boolean scoringUiEnabled) { 439 boolean scoreChanged = false; 440 if (scoringUiEnabled) { 441 scoreChanged = updateScores(scoreCache); 442 } 443 return updateMetered(scoreCache) || scoreChanged; 444 } 445 446 /** 447 * Updates the AccessPoint rankingScore and speed, returning true if the data has changed. 448 * 449 * <p>Precondition: {@link #mRssi} is up to date before invoking this method. 450 * 451 * @param scoreCache The score cache to use to retrieve scores. 452 * @return true if the set speed has changed 453 */ 454 private boolean updateScores(WifiNetworkScoreCache scoreCache) { 455 for (ScanResult result : mScanResultCache.values()) { 456 ScoredNetwork score = scoreCache.getScoredNetwork(result); 457 if (score == null) { 458 continue; 459 } 460 mScoredNetworkCache.put(result.BSSID, score); 461 } 462 463 return updateSpeed(); 464 } 465 466 /** 467 * Updates the internal speed, returning true if the update resulted in a speed label change. 468 */ 469 private boolean updateSpeed() { 470 int oldSpeed = mSpeed; 471 mSpeed = generateAverageSpeedForSsid(); 472 473 // set speed to the connected ScanResult if the AccessPoint is the active network 474 if (isActive() && mInfo != null) { 475 ScoredNetwork score = mScoredNetworkCache.get(mInfo.getBSSID()); 476 if (score != null) { 477 if (Log.isLoggable(TAG, Log.DEBUG)) { 478 Log.d(TAG, "Set score using specific access point curve for connected AP: " 479 + getSsidStr()); 480 } 481 // TODO(b/63073866): Map using getLevel rather than specific rssi value so score 482 // doesn't change without a visible wifi bar change. 483 int speed = score.calculateBadge(mInfo.getRssi()); 484 if (speed != Speed.NONE) { 485 mSpeed = speed; 486 } 487 } 488 } 489 490 boolean changed = oldSpeed != mSpeed; 491 if(WifiTracker.sVerboseLogging && changed) { 492 Log.i(TAG, String.format("%s: Set speed to %d", ssid, mSpeed)); 493 } 494 return changed; 495 } 496 497 /** Creates a speed value for the current {@link #mRssi} by averaging all non zero badges. */ 498 @Speed private int generateAverageSpeedForSsid() { 499 if (mScoredNetworkCache.isEmpty()) { 500 return Speed.NONE; 501 } 502 503 int count = 0; 504 int totalSpeed = 0; 505 506 if (Log.isLoggable(TAG, Log.DEBUG)) { 507 Log.d(TAG, String.format("Generating fallbackspeed for %s using cache: %s", 508 getSsidStr(), mScoredNetworkCache)); 509 } 510 511 for (ScoredNetwork score : mScoredNetworkCache.values()) { 512 int speed = score.calculateBadge(mRssi); 513 if (speed != Speed.NONE) { 514 count++; 515 totalSpeed += speed; 516 } 517 } 518 int speed = count == 0 ? Speed.NONE : totalSpeed / count; 519 if (WifiTracker.sVerboseLogging) { 520 Log.i(TAG, String.format("%s generated fallback speed is: %d", getSsidStr(), speed)); 521 } 522 return roundToClosestSpeedEnum(speed); 523 } 524 525 /** 526 * Updates the AccessPoint's metering based on {@link ScoredNetwork#meteredHint}, returning 527 * true if the metering changed. 528 */ 529 private boolean updateMetered(WifiNetworkScoreCache scoreCache) { 530 boolean oldMetering = mIsScoredNetworkMetered; 531 mIsScoredNetworkMetered = false; 532 533 if (isActive() && mInfo != null) { 534 NetworkKey key = NetworkKey.createFromWifiInfo(mInfo); 535 ScoredNetwork score = scoreCache.getScoredNetwork(key); 536 if (score != null) { 537 mIsScoredNetworkMetered |= score.meteredHint; 538 } 539 } else { 540 for (ScanResult result : mScanResultCache.values()) { 541 ScoredNetwork score = scoreCache.getScoredNetwork(result); 542 if (score == null) { 543 continue; 544 } 545 mIsScoredNetworkMetered |= score.meteredHint; 546 } 547 } 548 return oldMetering == mIsScoredNetworkMetered; 549 } 550 551 private void evictOldScanResults() { 552 long nowMs = SystemClock.elapsedRealtime(); 553 for (Iterator<ScanResult> iter = mScanResultCache.values().iterator(); iter.hasNext(); ) { 554 ScanResult result = iter.next(); 555 // result timestamp is in microseconds 556 if (nowMs - result.timestamp / 1000 > MAX_SCAN_RESULT_AGE_MS) { 557 iter.remove(); 558 } 559 } 560 } 561 562 public boolean matches(ScanResult result) { 563 return ssid.equals(result.SSID) && security == getSecurity(result); 564 } 565 566 public boolean matches(WifiConfiguration config) { 567 if (config.isPasspoint() && mConfig != null && mConfig.isPasspoint()) { 568 return ssid.equals(removeDoubleQuotes(config.SSID)) && config.FQDN.equals(mConfig.FQDN); 569 } else { 570 return ssid.equals(removeDoubleQuotes(config.SSID)) 571 && security == getSecurity(config) 572 && (mConfig == null || mConfig.shared == config.shared); 573 } 574 } 575 576 public WifiConfiguration getConfig() { 577 return mConfig; 578 } 579 580 public String getPasspointFqdn() { 581 return mFqdn; 582 } 583 584 public void clearConfig() { 585 mConfig = null; 586 networkId = WifiConfiguration.INVALID_NETWORK_ID; 587 } 588 589 public WifiInfo getInfo() { 590 return mInfo; 591 } 592 593 /** 594 * Returns the number of levels to show for a Wifi icon, from 0 to {@link #SIGNAL_LEVELS}-1. 595 * 596 * <p>Use {@#isReachable()} to determine if an AccessPoint is in range, as this method will 597 * always return at least 0. 598 */ 599 public int getLevel() { 600 return WifiManager.calculateSignalLevel(mRssi, SIGNAL_LEVELS); 601 } 602 603 public int getRssi() { 604 return mRssi; 605 } 606 607 /** 608 * Updates {@link #mRssi}. 609 * 610 * <p>If the given connection is active, the existing value of {@link #mRssi} will be returned. 611 * If the given AccessPoint is not active, a value will be calculated from previous scan 612 * results, returning the best RSSI for all matching AccessPoints averaged with the previous 613 * value. If the access point is not connected and there are no scan results, the rssi will be 614 * set to {@link #UNREACHABLE_RSSI}. 615 */ 616 private void updateRssi() { 617 if (this.isActive()) { 618 return; 619 } 620 621 int rssi = UNREACHABLE_RSSI; 622 for (ScanResult result : mScanResultCache.values()) { 623 if (result.level > rssi) { 624 rssi = result.level; 625 } 626 } 627 628 if (rssi != UNREACHABLE_RSSI && mRssi != UNREACHABLE_RSSI) { 629 mRssi = (mRssi + rssi) / 2; // half-life previous value 630 } else { 631 mRssi = rssi; 632 } 633 } 634 635 /** 636 * Returns if the network should be considered metered. 637 */ 638 public boolean isMetered() { 639 return mIsScoredNetworkMetered 640 || WifiConfiguration.isMetered(mConfig, mInfo); 641 } 642 643 public NetworkInfo getNetworkInfo() { 644 return mNetworkInfo; 645 } 646 647 public int getSecurity() { 648 return security; 649 } 650 651 public String getSecurityString(boolean concise) { 652 Context context = mContext; 653 if (isPasspoint() || isPasspointConfig()) { 654 return concise ? context.getString(R.string.wifi_security_short_eap) : 655 context.getString(R.string.wifi_security_eap); 656 } 657 switch(security) { 658 case SECURITY_EAP: 659 return concise ? context.getString(R.string.wifi_security_short_eap) : 660 context.getString(R.string.wifi_security_eap); 661 case SECURITY_PSK: 662 switch (pskType) { 663 case PSK_WPA: 664 return concise ? context.getString(R.string.wifi_security_short_wpa) : 665 context.getString(R.string.wifi_security_wpa); 666 case PSK_WPA2: 667 return concise ? context.getString(R.string.wifi_security_short_wpa2) : 668 context.getString(R.string.wifi_security_wpa2); 669 case PSK_WPA_WPA2: 670 return concise ? context.getString(R.string.wifi_security_short_wpa_wpa2) : 671 context.getString(R.string.wifi_security_wpa_wpa2); 672 case PSK_UNKNOWN: 673 default: 674 return concise ? context.getString(R.string.wifi_security_short_psk_generic) 675 : context.getString(R.string.wifi_security_psk_generic); 676 } 677 case SECURITY_WEP: 678 return concise ? context.getString(R.string.wifi_security_short_wep) : 679 context.getString(R.string.wifi_security_wep); 680 case SECURITY_NONE: 681 default: 682 return concise ? "" : context.getString(R.string.wifi_security_none); 683 } 684 } 685 686 public String getSsidStr() { 687 return ssid; 688 } 689 690 public String getBssid() { 691 return bssid; 692 } 693 694 public CharSequence getSsid() { 695 final SpannableString str = new SpannableString(ssid); 696 str.setSpan(new TtsSpan.TelephoneBuilder(ssid).build(), 0, ssid.length(), 697 Spannable.SPAN_INCLUSIVE_INCLUSIVE); 698 return str; 699 } 700 701 public String getConfigName() { 702 if (mConfig != null && mConfig.isPasspoint()) { 703 return mConfig.providerFriendlyName; 704 } else if (mFqdn != null) { 705 return mProviderFriendlyName; 706 } else { 707 return ssid; 708 } 709 } 710 711 public DetailedState getDetailedState() { 712 if (mNetworkInfo != null) { 713 return mNetworkInfo.getDetailedState(); 714 } 715 Log.w(TAG, "NetworkInfo is null, cannot return detailed state"); 716 return null; 717 } 718 719 public boolean isCarrierAp() { 720 return mIsCarrierAp; 721 } 722 723 public int getCarrierApEapType() { 724 return mCarrierApEapType; 725 } 726 727 public String getCarrierName() { 728 return mCarrierName; 729 } 730 731 public String getSavedNetworkSummary() { 732 WifiConfiguration config = mConfig; 733 if (config != null) { 734 PackageManager pm = mContext.getPackageManager(); 735 String systemName = pm.getNameForUid(android.os.Process.SYSTEM_UID); 736 int userId = UserHandle.getUserId(config.creatorUid); 737 ApplicationInfo appInfo = null; 738 if (config.creatorName != null && config.creatorName.equals(systemName)) { 739 appInfo = mContext.getApplicationInfo(); 740 } else { 741 try { 742 IPackageManager ipm = AppGlobals.getPackageManager(); 743 appInfo = ipm.getApplicationInfo(config.creatorName, 0 /* flags */, userId); 744 } catch (RemoteException rex) { 745 } 746 } 747 if (appInfo != null && 748 !appInfo.packageName.equals(mContext.getString(R.string.settings_package)) && 749 !appInfo.packageName.equals( 750 mContext.getString(R.string.certinstaller_package))) { 751 return mContext.getString(R.string.saved_network, appInfo.loadLabel(pm)); 752 } 753 } 754 return ""; 755 } 756 757 public String getSummary() { 758 return getSettingsSummary(mConfig); 759 } 760 761 public String getSettingsSummary() { 762 return getSettingsSummary(mConfig); 763 } 764 765 private String getSettingsSummary(WifiConfiguration config) { 766 // Update to new summary 767 StringBuilder summary = new StringBuilder(); 768 769 if (isActive() && config != null && config.isPasspoint()) { 770 // This is the active connection on passpoint 771 summary.append(getSummary(mContext, getDetailedState(), 772 false, config.providerFriendlyName)); 773 } else if (isActive() && config != null && getDetailedState() == DetailedState.CONNECTED 774 && mIsCarrierAp) { 775 summary.append(String.format(mContext.getString(R.string.connected_via_carrier), mCarrierName)); 776 } else if (isActive()) { 777 // This is the active connection on non-passpoint network 778 summary.append(getSummary(mContext, getDetailedState(), 779 mInfo != null && mInfo.isEphemeral())); 780 } else if (config != null && config.isPasspoint() 781 && config.getNetworkSelectionStatus().isNetworkEnabled()) { 782 String format = mContext.getString(R.string.available_via_passpoint); 783 summary.append(String.format(format, config.providerFriendlyName)); 784 } else if (config != null && config.hasNoInternetAccess()) { 785 int messageID = config.getNetworkSelectionStatus().isNetworkPermanentlyDisabled() 786 ? R.string.wifi_no_internet_no_reconnect 787 : R.string.wifi_no_internet; 788 summary.append(mContext.getString(messageID)); 789 } else if (config != null && !config.getNetworkSelectionStatus().isNetworkEnabled()) { 790 WifiConfiguration.NetworkSelectionStatus networkStatus = 791 config.getNetworkSelectionStatus(); 792 switch (networkStatus.getNetworkSelectionDisableReason()) { 793 case WifiConfiguration.NetworkSelectionStatus.DISABLED_AUTHENTICATION_FAILURE: 794 summary.append(mContext.getString(R.string.wifi_disabled_password_failure)); 795 break; 796 case WifiConfiguration.NetworkSelectionStatus.DISABLED_BY_WRONG_PASSWORD: 797 summary.append(mContext.getString(R.string.wifi_check_password_try_again)); 798 break; 799 case WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE: 800 case WifiConfiguration.NetworkSelectionStatus.DISABLED_DNS_FAILURE: 801 summary.append(mContext.getString(R.string.wifi_disabled_network_failure)); 802 break; 803 case WifiConfiguration.NetworkSelectionStatus.DISABLED_ASSOCIATION_REJECTION: 804 summary.append(mContext.getString(R.string.wifi_disabled_generic)); 805 break; 806 } 807 } else if (config != null && config.getNetworkSelectionStatus().isNotRecommended()) { 808 summary.append(mContext.getString(R.string.wifi_disabled_by_recommendation_provider)); 809 } else if (mIsCarrierAp) { 810 summary.append(String.format(mContext.getString(R.string.available_via_carrier), mCarrierName)); 811 } else if (!isReachable()) { // Wifi out of range 812 summary.append(mContext.getString(R.string.wifi_not_in_range)); 813 } else { // In range, not disabled. 814 if (config != null) { // Is saved network 815 // Last attempt to connect to this failed. Show reason why 816 switch (config.recentFailure.getAssociationStatus()) { 817 case WifiConfiguration.RecentFailure.STATUS_AP_UNABLE_TO_HANDLE_NEW_STA: 818 summary.append(mContext.getString( 819 R.string.wifi_ap_unable_to_handle_new_sta)); 820 break; 821 default: 822 // "Saved" 823 summary.append(mContext.getString(R.string.wifi_remembered)); 824 break; 825 } 826 } 827 } 828 829 if (WifiTracker.sVerboseLogging) { 830 // Add RSSI/band information for this config, what was seen up to 6 seconds ago 831 // verbose WiFi Logging is only turned on thru developers settings 832 if (isActive() && mInfo != null) { 833 summary.append(" f=" + Integer.toString(mInfo.getFrequency())); 834 } 835 summary.append(" " + getVisibilityStatus()); 836 if (config != null && !config.getNetworkSelectionStatus().isNetworkEnabled()) { 837 summary.append(" (" + config.getNetworkSelectionStatus().getNetworkStatusString()); 838 if (config.getNetworkSelectionStatus().getDisableTime() > 0) { 839 long now = System.currentTimeMillis(); 840 long diff = (now - config.getNetworkSelectionStatus().getDisableTime()) / 1000; 841 long sec = diff%60; //seconds 842 long min = (diff/60)%60; //minutes 843 long hour = (min/60)%60; //hours 844 summary.append(", "); 845 if (hour > 0) summary.append(Long.toString(hour) + "h "); 846 summary.append( Long.toString(min) + "m "); 847 summary.append( Long.toString(sec) + "s "); 848 } 849 summary.append(")"); 850 } 851 852 if (config != null) { 853 WifiConfiguration.NetworkSelectionStatus networkStatus = 854 config.getNetworkSelectionStatus(); 855 for (int index = WifiConfiguration.NetworkSelectionStatus.NETWORK_SELECTION_ENABLE; 856 index < WifiConfiguration.NetworkSelectionStatus 857 .NETWORK_SELECTION_DISABLED_MAX; index++) { 858 if (networkStatus.getDisableReasonCounter(index) != 0) { 859 summary.append(" " + WifiConfiguration.NetworkSelectionStatus 860 .getNetworkDisableReasonString(index) + "=" 861 + networkStatus.getDisableReasonCounter(index)); 862 } 863 } 864 } 865 } 866 867 // If Speed label and summary are both present, use the preference combination to combine 868 // the two, else return the non-null one. 869 if (getSpeedLabel() != null && summary.length() != 0) { 870 return mContext.getResources().getString( 871 R.string.preference_summary_default_combination, 872 getSpeedLabel(), 873 summary.toString()); 874 } else if (getSpeedLabel() != null) { 875 return getSpeedLabel(); 876 } else { 877 return summary.toString(); 878 } 879 } 880 881 /** 882 * Returns the visibility status of the WifiConfiguration. 883 * 884 * @return autojoin debugging information 885 * TODO: use a string formatter 886 * ["rssi 5Ghz", "num results on 5GHz" / "rssi 5Ghz", "num results on 5GHz"] 887 * For instance [-40,5/-30,2] 888 */ 889 private String getVisibilityStatus() { 890 StringBuilder visibility = new StringBuilder(); 891 StringBuilder scans24GHz = new StringBuilder(); 892 StringBuilder scans5GHz = new StringBuilder(); 893 String bssid = null; 894 895 long now = System.currentTimeMillis(); 896 897 if (isActive() && mInfo != null) { 898 bssid = mInfo.getBSSID(); 899 if (bssid != null) { 900 visibility.append(" ").append(bssid); 901 } 902 visibility.append(" rssi=").append(mInfo.getRssi()); 903 visibility.append(" "); 904 visibility.append(" score=").append(mInfo.score); 905 if (mSpeed != Speed.NONE) { 906 visibility.append(" speed=").append(getSpeedLabel()); 907 } 908 visibility.append(String.format(" tx=%.1f,", mInfo.txSuccessRate)); 909 visibility.append(String.format("%.1f,", mInfo.txRetriesRate)); 910 visibility.append(String.format("%.1f ", mInfo.txBadRate)); 911 visibility.append(String.format("rx=%.1f", mInfo.rxSuccessRate)); 912 } 913 914 int maxRssi5 = WifiConfiguration.INVALID_RSSI; 915 int maxRssi24 = WifiConfiguration.INVALID_RSSI; 916 final int maxDisplayedScans = 4; 917 int num5 = 0; // number of scanned BSSID on 5GHz band 918 int num24 = 0; // number of scanned BSSID on 2.4Ghz band 919 int numBlackListed = 0; 920 evictOldScanResults(); 921 922 // TODO: sort list by RSSI or age 923 for (ScanResult result : mScanResultCache.values()) { 924 if (result.frequency >= LOWER_FREQ_5GHZ 925 && result.frequency <= HIGHER_FREQ_5GHZ) { 926 // Strictly speaking: [4915, 5825] 927 num5++; 928 929 if (result.level > maxRssi5) { 930 maxRssi5 = result.level; 931 } 932 if (num5 <= maxDisplayedScans) { 933 scans5GHz.append(verboseScanResultSummary(result, bssid)); 934 } 935 } else if (result.frequency >= LOWER_FREQ_24GHZ 936 && result.frequency <= HIGHER_FREQ_24GHZ) { 937 // Strictly speaking: [2412, 2482] 938 num24++; 939 940 if (result.level > maxRssi24) { 941 maxRssi24 = result.level; 942 } 943 if (num24 <= maxDisplayedScans) { 944 scans24GHz.append(verboseScanResultSummary(result, bssid)); 945 } 946 } 947 } 948 visibility.append(" ["); 949 if (num24 > 0) { 950 visibility.append("(").append(num24).append(")"); 951 if (num24 > maxDisplayedScans) { 952 visibility.append("max=").append(maxRssi24).append(","); 953 } 954 visibility.append(scans24GHz.toString()); 955 } 956 visibility.append(";"); 957 if (num5 > 0) { 958 visibility.append("(").append(num5).append(")"); 959 if (num5 > maxDisplayedScans) { 960 visibility.append("max=").append(maxRssi5).append(","); 961 } 962 visibility.append(scans5GHz.toString()); 963 } 964 if (numBlackListed > 0) 965 visibility.append("!").append(numBlackListed); 966 visibility.append("]"); 967 968 return visibility.toString(); 969 } 970 971 @VisibleForTesting 972 /* package */ String verboseScanResultSummary(ScanResult result, String bssid) { 973 StringBuilder stringBuilder = new StringBuilder(); 974 stringBuilder.append(" \n{").append(result.BSSID); 975 if (result.BSSID.equals(bssid)) { 976 stringBuilder.append("*"); 977 } 978 stringBuilder.append("=").append(result.frequency); 979 stringBuilder.append(",").append(result.level); 980 int speed = getSpecificApSpeed(result); 981 if (speed != Speed.NONE) { 982 stringBuilder.append(",") 983 .append(getSpeedLabel(speed)); 984 } 985 stringBuilder.append("}"); 986 return stringBuilder.toString(); 987 } 988 989 @Speed private int getSpecificApSpeed(ScanResult result) { 990 ScoredNetwork score = mScoredNetworkCache.get(result.BSSID); 991 if (score == null) { 992 return Speed.NONE; 993 } 994 // For debugging purposes we may want to use mRssi rather than result.level as the average 995 // speed wil be determined by mRssi 996 return score.calculateBadge(result.level); 997 } 998 999 /** 1000 * Return whether this is the active connection. 1001 * For ephemeral connections (networkId is invalid), this returns false if the network is 1002 * disconnected. 1003 */ 1004 public boolean isActive() { 1005 return mNetworkInfo != null && 1006 (networkId != WifiConfiguration.INVALID_NETWORK_ID || 1007 mNetworkInfo.getState() != State.DISCONNECTED); 1008 } 1009 1010 public boolean isConnectable() { 1011 return getLevel() != -1 && getDetailedState() == null; 1012 } 1013 1014 public boolean isEphemeral() { 1015 return mInfo != null && mInfo.isEphemeral() && 1016 mNetworkInfo != null && mNetworkInfo.getState() != State.DISCONNECTED; 1017 } 1018 1019 /** 1020 * Return true if this AccessPoint represents a Passpoint AP. 1021 */ 1022 public boolean isPasspoint() { 1023 return mConfig != null && mConfig.isPasspoint(); 1024 } 1025 1026 /** 1027 * Return true if this AccessPoint represents a Passpoint provider configuration. 1028 */ 1029 public boolean isPasspointConfig() { 1030 return mFqdn != null; 1031 } 1032 1033 /** 1034 * Return whether the given {@link WifiInfo} is for this access point. 1035 * If the current AP does not have a network Id then the config is used to 1036 * match based on SSID and security. 1037 */ 1038 private boolean isInfoForThisAccessPoint(WifiConfiguration config, WifiInfo info) { 1039 if (isPasspoint() == false && networkId != WifiConfiguration.INVALID_NETWORK_ID) { 1040 return networkId == info.getNetworkId(); 1041 } else if (config != null) { 1042 return matches(config); 1043 } 1044 else { 1045 // Might be an ephemeral connection with no WifiConfiguration. Try matching on SSID. 1046 // (Note that we only do this if the WifiConfiguration explicitly equals INVALID). 1047 // TODO: Handle hex string SSIDs. 1048 return ssid.equals(removeDoubleQuotes(info.getSSID())); 1049 } 1050 } 1051 1052 public boolean isSaved() { 1053 return networkId != WifiConfiguration.INVALID_NETWORK_ID; 1054 } 1055 1056 public Object getTag() { 1057 return mTag; 1058 } 1059 1060 public void setTag(Object tag) { 1061 mTag = tag; 1062 } 1063 1064 /** 1065 * Generate and save a default wifiConfiguration with common values. 1066 * Can only be called for unsecured networks. 1067 */ 1068 public void generateOpenNetworkConfig() { 1069 if (security != SECURITY_NONE) 1070 throw new IllegalStateException(); 1071 if (mConfig != null) 1072 return; 1073 mConfig = new WifiConfiguration(); 1074 mConfig.SSID = AccessPoint.convertToQuotedString(ssid); 1075 mConfig.allowedKeyManagement.set(KeyMgmt.NONE); 1076 } 1077 1078 void loadConfig(WifiConfiguration config) { 1079 ssid = (config.SSID == null ? "" : removeDoubleQuotes(config.SSID)); 1080 bssid = config.BSSID; 1081 security = getSecurity(config); 1082 networkId = config.networkId; 1083 mConfig = config; 1084 } 1085 1086 private void initWithScanResult(ScanResult result) { 1087 ssid = result.SSID; 1088 bssid = result.BSSID; 1089 security = getSecurity(result); 1090 if (security == SECURITY_PSK) 1091 pskType = getPskType(result); 1092 1093 mScanResultCache.put(result.BSSID, result); 1094 updateRssi(); 1095 mIsCarrierAp = result.isCarrierAp; 1096 mCarrierApEapType = result.carrierApEapType; 1097 mCarrierName = result.carrierName; 1098 } 1099 1100 public void saveWifiState(Bundle savedState) { 1101 if (ssid != null) savedState.putString(KEY_SSID, getSsidStr()); 1102 savedState.putInt(KEY_SECURITY, security); 1103 savedState.putInt(KEY_SPEED, mSpeed); 1104 savedState.putInt(KEY_PSKTYPE, pskType); 1105 if (mConfig != null) savedState.putParcelable(KEY_CONFIG, mConfig); 1106 savedState.putParcelable(KEY_WIFIINFO, mInfo); 1107 evictOldScanResults(); 1108 savedState.putParcelableArrayList(KEY_SCANRESULTCACHE, 1109 new ArrayList<ScanResult>(mScanResultCache.values())); 1110 savedState.putParcelableArrayList(KEY_SCOREDNETWORKCACHE, 1111 new ArrayList<>(mScoredNetworkCache.values())); 1112 if (mNetworkInfo != null) { 1113 savedState.putParcelable(KEY_NETWORKINFO, mNetworkInfo); 1114 } 1115 if (mFqdn != null) { 1116 savedState.putString(KEY_FQDN, mFqdn); 1117 } 1118 if (mProviderFriendlyName != null) { 1119 savedState.putString(KEY_PROVIDER_FRIENDLY_NAME, mProviderFriendlyName); 1120 } 1121 savedState.putBoolean(KEY_IS_CARRIER_AP, mIsCarrierAp); 1122 savedState.putInt(KEY_CARRIER_AP_EAP_TYPE, mCarrierApEapType); 1123 savedState.putString(KEY_CARRIER_NAME, mCarrierName); 1124 } 1125 1126 public void setListener(AccessPointListener listener) { 1127 mAccessPointListener = listener; 1128 } 1129 1130 /** 1131 * Update the AP with the given scan result. 1132 * 1133 * @param result the ScanResult to add to the AccessPoint scan cache 1134 * @param evictOldScanResults whether stale scan results should be removed 1135 * from the cache during this update process 1136 * @return true if the scan result update caused a change in state which would impact ranking 1137 * or AccessPoint rendering (e.g. wifi level, security) 1138 */ 1139 boolean update(ScanResult result, boolean evictOldScanResults) { 1140 if (matches(result)) { 1141 int oldLevel = getLevel(); 1142 1143 /* Add or update the scan result for the BSSID */ 1144 mScanResultCache.put(result.BSSID, result); 1145 if (evictOldScanResults) evictOldScanResults(); 1146 updateRssi(); 1147 int newLevel = getLevel(); 1148 1149 if (newLevel > 0 && newLevel != oldLevel) { 1150 // Only update labels on visible rssi changes 1151 updateSpeed(); 1152 if (mAccessPointListener != null) { 1153 mAccessPointListener.onLevelChanged(this); 1154 } 1155 } 1156 // This flag only comes from scans, is not easily saved in config 1157 if (security == SECURITY_PSK) { 1158 pskType = getPskType(result); 1159 } 1160 1161 if (mAccessPointListener != null) { 1162 mAccessPointListener.onAccessPointChanged(this); 1163 } 1164 1165 // The carrier info in the ScanResult is set by the platform based on the SSID and will 1166 // always be the same for all matching scan results. 1167 mIsCarrierAp = result.isCarrierAp; 1168 mCarrierApEapType = result.carrierApEapType; 1169 mCarrierName = result.carrierName; 1170 1171 return true; 1172 } 1173 return false; 1174 } 1175 1176 /** Attempt to update the AccessPoint and return true if an update occurred. */ 1177 public boolean update( 1178 @Nullable WifiConfiguration config, WifiInfo info, NetworkInfo networkInfo) { 1179 boolean updated = false; 1180 final int oldLevel = getLevel(); 1181 if (info != null && isInfoForThisAccessPoint(config, info)) { 1182 updated = (mInfo == null); 1183 if (mConfig != config) { 1184 // We do not set updated = true as we do not want to increase the amount of sorting 1185 // and copying performed in WifiTracker at this time. If issues involving refresh 1186 // are still seen, we will investigate further. 1187 update(config); // Notifies the AccessPointListener of the change 1188 } 1189 if (mRssi != info.getRssi() && info.getRssi() != WifiInfo.INVALID_RSSI) { 1190 mRssi = info.getRssi(); 1191 updated = true; 1192 } else if (mNetworkInfo != null && networkInfo != null 1193 && mNetworkInfo.getDetailedState() != networkInfo.getDetailedState()) { 1194 updated = true; 1195 } 1196 mInfo = info; 1197 mNetworkInfo = networkInfo; 1198 } else if (mInfo != null) { 1199 updated = true; 1200 mInfo = null; 1201 mNetworkInfo = null; 1202 } 1203 if (updated && mAccessPointListener != null) { 1204 mAccessPointListener.onAccessPointChanged(this); 1205 1206 if (oldLevel != getLevel() /* current level */) { 1207 mAccessPointListener.onLevelChanged(this); 1208 } 1209 } 1210 return updated; 1211 } 1212 1213 void update(@Nullable WifiConfiguration config) { 1214 mConfig = config; 1215 networkId = config != null ? config.networkId : WifiConfiguration.INVALID_NETWORK_ID; 1216 if (mAccessPointListener != null) { 1217 mAccessPointListener.onAccessPointChanged(this); 1218 } 1219 } 1220 1221 @VisibleForTesting 1222 void setRssi(int rssi) { 1223 mRssi = rssi; 1224 } 1225 1226 /** Sets the rssi to {@link #UNREACHABLE_RSSI}. */ 1227 void setUnreachable() { 1228 setRssi(AccessPoint.UNREACHABLE_RSSI); 1229 } 1230 1231 int getSpeed() { return mSpeed;} 1232 1233 @Nullable 1234 String getSpeedLabel() { 1235 return getSpeedLabel(mSpeed); 1236 } 1237 1238 @Nullable 1239 @Speed 1240 private int roundToClosestSpeedEnum(int speed) { 1241 if (speed < Speed.SLOW) { 1242 return Speed.NONE; 1243 } else if (speed < (Speed.SLOW + Speed.MODERATE) / 2) { 1244 return Speed.SLOW; 1245 } else if (speed < (Speed.MODERATE + Speed.FAST) / 2) { 1246 return Speed.MODERATE; 1247 } else if (speed < (Speed.FAST + Speed.VERY_FAST) / 2) { 1248 return Speed.FAST; 1249 } else { 1250 return Speed.VERY_FAST; 1251 } 1252 } 1253 1254 @Nullable 1255 private String getSpeedLabel(@Speed int speed) { 1256 switch (speed) { 1257 case Speed.VERY_FAST: 1258 return mContext.getString(R.string.speed_label_very_fast); 1259 case Speed.FAST: 1260 return mContext.getString(R.string.speed_label_fast); 1261 case Speed.MODERATE: 1262 return mContext.getString(R.string.speed_label_okay); 1263 case Speed.SLOW: 1264 return mContext.getString(R.string.speed_label_slow); 1265 case Speed.NONE: 1266 default: 1267 return null; 1268 } 1269 } 1270 1271 /** Return true if the current RSSI is reachable, and false otherwise. */ 1272 public boolean isReachable() { 1273 return mRssi != UNREACHABLE_RSSI; 1274 } 1275 1276 public static String getSummary(Context context, String ssid, DetailedState state, 1277 boolean isEphemeral, String passpointProvider) { 1278 if (state == DetailedState.CONNECTED && ssid == null) { 1279 if (TextUtils.isEmpty(passpointProvider) == false) { 1280 // Special case for connected + passpoint networks. 1281 String format = context.getString(R.string.connected_via_passpoint); 1282 return String.format(format, passpointProvider); 1283 } else if (isEphemeral) { 1284 // Special case for connected + ephemeral networks. 1285 final NetworkScoreManager networkScoreManager = context.getSystemService( 1286 NetworkScoreManager.class); 1287 NetworkScorerAppData scorer = networkScoreManager.getActiveScorer(); 1288 if (scorer != null && scorer.getRecommendationServiceLabel() != null) { 1289 String format = context.getString(R.string.connected_via_network_scorer); 1290 return String.format(format, scorer.getRecommendationServiceLabel()); 1291 } else { 1292 return context.getString(R.string.connected_via_network_scorer_default); 1293 } 1294 } 1295 } 1296 1297 // Case when there is wifi connected without internet connectivity. 1298 final ConnectivityManager cm = (ConnectivityManager) 1299 context.getSystemService(Context.CONNECTIVITY_SERVICE); 1300 if (state == DetailedState.CONNECTED) { 1301 IWifiManager wifiManager = IWifiManager.Stub.asInterface( 1302 ServiceManager.getService(Context.WIFI_SERVICE)); 1303 NetworkCapabilities nc = null; 1304 1305 try { 1306 nc = cm.getNetworkCapabilities(wifiManager.getCurrentNetwork()); 1307 } catch (RemoteException e) {} 1308 1309 if (nc != null) { 1310 if (nc.hasCapability(nc.NET_CAPABILITY_CAPTIVE_PORTAL)) { 1311 int id = context.getResources() 1312 .getIdentifier("network_available_sign_in", "string", "android"); 1313 return context.getString(id); 1314 } else if (!nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED)) { 1315 return context.getString(R.string.wifi_connected_no_internet); 1316 } 1317 } 1318 } 1319 if (state == null) { 1320 Log.w(TAG, "state is null, returning empty summary"); 1321 return ""; 1322 } 1323 String[] formats = context.getResources().getStringArray((ssid == null) 1324 ? R.array.wifi_status : R.array.wifi_status_with_ssid); 1325 int index = state.ordinal(); 1326 1327 if (index >= formats.length || formats[index].length() == 0) { 1328 return ""; 1329 } 1330 return String.format(formats[index], ssid); 1331 } 1332 1333 public static String getSummary(Context context, DetailedState state, boolean isEphemeral) { 1334 return getSummary(context, null, state, isEphemeral, null); 1335 } 1336 1337 public static String getSummary(Context context, DetailedState state, boolean isEphemeral, 1338 String passpointProvider) { 1339 return getSummary(context, null, state, isEphemeral, passpointProvider); 1340 } 1341 1342 public static String convertToQuotedString(String string) { 1343 return "\"" + string + "\""; 1344 } 1345 1346 private static int getPskType(ScanResult result) { 1347 boolean wpa = result.capabilities.contains("WPA-PSK"); 1348 boolean wpa2 = result.capabilities.contains("WPA2-PSK"); 1349 if (wpa2 && wpa) { 1350 return PSK_WPA_WPA2; 1351 } else if (wpa2) { 1352 return PSK_WPA2; 1353 } else if (wpa) { 1354 return PSK_WPA; 1355 } else { 1356 Log.w(TAG, "Received abnormal flag string: " + result.capabilities); 1357 return PSK_UNKNOWN; 1358 } 1359 } 1360 1361 private static int getSecurity(ScanResult result) { 1362 if (result.capabilities.contains("WEP")) { 1363 return SECURITY_WEP; 1364 } else if (result.capabilities.contains("PSK")) { 1365 return SECURITY_PSK; 1366 } else if (result.capabilities.contains("EAP")) { 1367 return SECURITY_EAP; 1368 } 1369 return SECURITY_NONE; 1370 } 1371 1372 static int getSecurity(WifiConfiguration config) { 1373 if (config.allowedKeyManagement.get(KeyMgmt.WPA_PSK)) { 1374 return SECURITY_PSK; 1375 } 1376 if (config.allowedKeyManagement.get(KeyMgmt.WPA_EAP) || 1377 config.allowedKeyManagement.get(KeyMgmt.IEEE8021X)) { 1378 return SECURITY_EAP; 1379 } 1380 return (config.wepKeys[0] != null) ? SECURITY_WEP : SECURITY_NONE; 1381 } 1382 1383 public static String securityToString(int security, int pskType) { 1384 if (security == SECURITY_WEP) { 1385 return "WEP"; 1386 } else if (security == SECURITY_PSK) { 1387 if (pskType == PSK_WPA) { 1388 return "WPA"; 1389 } else if (pskType == PSK_WPA2) { 1390 return "WPA2"; 1391 } else if (pskType == PSK_WPA_WPA2) { 1392 return "WPA_WPA2"; 1393 } 1394 return "PSK"; 1395 } else if (security == SECURITY_EAP) { 1396 return "EAP"; 1397 } 1398 return "NONE"; 1399 } 1400 1401 static String removeDoubleQuotes(String string) { 1402 if (TextUtils.isEmpty(string)) { 1403 return ""; 1404 } 1405 int length = string.length(); 1406 if ((length > 1) && (string.charAt(0) == '"') 1407 && (string.charAt(length - 1) == '"')) { 1408 return string.substring(1, length - 1); 1409 } 1410 return string; 1411 } 1412 1413 public interface AccessPointListener { 1414 void onAccessPointChanged(AccessPoint accessPoint); 1415 void onLevelChanged(AccessPoint accessPoint); 1416 } 1417} 1418