AccessPoint.java revision f9bf6da6cd0666897f4b56cf0e6dee3c55243273
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.app.AppGlobals; 20import android.content.Context; 21import android.content.pm.ApplicationInfo; 22import android.content.pm.IPackageManager; 23import android.content.pm.PackageManager; 24import android.net.ConnectivityManager; 25import android.net.Network; 26import android.net.NetworkCapabilities; 27import android.net.NetworkInfo; 28import android.net.NetworkInfo.DetailedState; 29import android.net.NetworkInfo.State; 30import android.net.wifi.IWifiManager; 31import android.net.wifi.ScanResult; 32import android.net.wifi.WifiConfiguration; 33import android.net.wifi.WifiConfiguration.KeyMgmt; 34import android.net.wifi.WifiInfo; 35import android.net.wifi.WifiManager; 36import android.os.Bundle; 37import android.os.RemoteException; 38import android.os.ServiceManager; 39import android.os.UserHandle; 40import android.text.Spannable; 41import android.text.SpannableString; 42import android.text.TextUtils; 43import android.text.style.TtsSpan; 44import android.util.Log; 45import android.util.LruCache; 46 47import com.android.settingslib.R; 48 49import java.util.ArrayList; 50import java.util.Map; 51 52 53public class AccessPoint implements Comparable<AccessPoint> { 54 static final String TAG = "SettingsLib.AccessPoint"; 55 56 /** 57 * Lower bound on the 2.4 GHz (802.11b/g/n) WLAN channels 58 */ 59 public static final int LOWER_FREQ_24GHZ = 2400; 60 61 /** 62 * Upper bound on the 2.4 GHz (802.11b/g/n) WLAN channels 63 */ 64 public static final int HIGHER_FREQ_24GHZ = 2500; 65 66 /** 67 * Lower bound on the 5.0 GHz (802.11a/h/j/n/ac) WLAN channels 68 */ 69 public static final int LOWER_FREQ_5GHZ = 4900; 70 71 /** 72 * Upper bound on the 5.0 GHz (802.11a/h/j/n/ac) WLAN channels 73 */ 74 public static final int HIGHER_FREQ_5GHZ = 5900; 75 76 77 /** 78 * Experimental: we should be able to show the user the list of BSSIDs and bands 79 * for that SSID. 80 * For now this data is used only with Verbose Logging so as to show the band and number 81 * of BSSIDs on which that network is seen. 82 */ 83 public LruCache<String, ScanResult> mScanResultCache = new LruCache<String, ScanResult>(32); 84 85 private static final String KEY_NETWORKINFO = "key_networkinfo"; 86 private static final String KEY_WIFIINFO = "key_wifiinfo"; 87 private static final String KEY_SCANRESULT = "key_scanresult"; 88 private static final String KEY_SSID = "key_ssid"; 89 private static final String KEY_SECURITY = "key_security"; 90 private static final String KEY_PSKTYPE = "key_psktype"; 91 private static final String KEY_SCANRESULTCACHE = "key_scanresultcache"; 92 private static final String KEY_CONFIG = "key_config"; 93 94 /** 95 * These values are matched in string arrays -- changes must be kept in sync 96 */ 97 public static final int SECURITY_NONE = 0; 98 public static final int SECURITY_WEP = 1; 99 public static final int SECURITY_PSK = 2; 100 public static final int SECURITY_EAP = 3; 101 102 private static final int PSK_UNKNOWN = 0; 103 private static final int PSK_WPA = 1; 104 private static final int PSK_WPA2 = 2; 105 private static final int PSK_WPA_WPA2 = 3; 106 107 private static final int VISIBILITY_OUTDATED_AGE_IN_MILLI = 20000; 108 private final Context mContext; 109 110 private String ssid; 111 private int security; 112 private int networkId = WifiConfiguration.INVALID_NETWORK_ID; 113 114 private int pskType = PSK_UNKNOWN; 115 116 private WifiConfiguration mConfig; 117 118 private int mRssi = Integer.MAX_VALUE; 119 private long mSeen = 0; 120 121 private WifiInfo mInfo; 122 private NetworkInfo mNetworkInfo; 123 private AccessPointListener mAccessPointListener; 124 125 private Object mTag; 126 127 public AccessPoint(Context context, Bundle savedState) { 128 mContext = context; 129 mConfig = savedState.getParcelable(KEY_CONFIG); 130 if (mConfig != null) { 131 loadConfig(mConfig); 132 } 133 if (savedState.containsKey(KEY_SSID)) { 134 ssid = savedState.getString(KEY_SSID); 135 } 136 if (savedState.containsKey(KEY_SECURITY)) { 137 security = savedState.getInt(KEY_SECURITY); 138 } 139 if (savedState.containsKey(KEY_PSKTYPE)) { 140 pskType = savedState.getInt(KEY_PSKTYPE); 141 } 142 mInfo = (WifiInfo) savedState.getParcelable(KEY_WIFIINFO); 143 if (savedState.containsKey(KEY_NETWORKINFO)) { 144 mNetworkInfo = savedState.getParcelable(KEY_NETWORKINFO); 145 } 146 if (savedState.containsKey(KEY_SCANRESULTCACHE)) { 147 ArrayList<ScanResult> scanResultArrayList = 148 savedState.getParcelableArrayList(KEY_SCANRESULTCACHE); 149 mScanResultCache.evictAll(); 150 for (ScanResult result : scanResultArrayList) { 151 mScanResultCache.put(result.BSSID, result); 152 } 153 } 154 update(mConfig, mInfo, mNetworkInfo); 155 mRssi = getRssi(); 156 mSeen = getSeen(); 157 } 158 159 AccessPoint(Context context, ScanResult result) { 160 mContext = context; 161 initWithScanResult(result); 162 } 163 164 AccessPoint(Context context, WifiConfiguration config) { 165 mContext = context; 166 loadConfig(config); 167 } 168 169 @Override 170 public int compareTo(AccessPoint other) { 171 // Active one goes first. 172 if (isActive() && !other.isActive()) return -1; 173 if (!isActive() && other.isActive()) return 1; 174 175 // Reachable one goes before unreachable one. 176 if (mRssi != Integer.MAX_VALUE && other.mRssi == Integer.MAX_VALUE) return -1; 177 if (mRssi == Integer.MAX_VALUE && other.mRssi != Integer.MAX_VALUE) return 1; 178 179 // Configured one goes before unconfigured one. 180 if (networkId != WifiConfiguration.INVALID_NETWORK_ID 181 && other.networkId == WifiConfiguration.INVALID_NETWORK_ID) return -1; 182 if (networkId == WifiConfiguration.INVALID_NETWORK_ID 183 && other.networkId != WifiConfiguration.INVALID_NETWORK_ID) return 1; 184 185 // Sort by signal strength. 186 int difference = WifiManager.compareSignalLevel(other.mRssi, mRssi); 187 if (difference != 0) { 188 return difference; 189 } 190 // Sort by ssid. 191 return ssid.compareToIgnoreCase(other.ssid); 192 } 193 194 @Override 195 public boolean equals(Object other) { 196 if (!(other instanceof AccessPoint)) return false; 197 return (this.compareTo((AccessPoint) other) == 0); 198 } 199 200 @Override 201 public int hashCode() { 202 int result = 0; 203 if (mInfo != null) result += 13 * mInfo.hashCode(); 204 result += 19 * mRssi; 205 result += 23 * networkId; 206 result += 29 * ssid.hashCode(); 207 return result; 208 } 209 210 @Override 211 public String toString() { 212 StringBuilder builder = new StringBuilder().append("AccessPoint(") 213 .append(ssid); 214 if (isSaved()) { 215 builder.append(',').append("saved"); 216 } 217 if (isActive()) { 218 builder.append(',').append("active"); 219 } 220 if (isEphemeral()) { 221 builder.append(',').append("ephemeral"); 222 } 223 if (isConnectable()) { 224 builder.append(',').append("connectable"); 225 } 226 if (security != SECURITY_NONE) { 227 builder.append(',').append(securityToString(security, pskType)); 228 } 229 return builder.append(')').toString(); 230 } 231 232 public boolean matches(ScanResult result) { 233 return ssid.equals(result.SSID) && security == getSecurity(result); 234 } 235 236 public boolean matches(WifiConfiguration config) { 237 if (config.isPasspoint() && mConfig != null && mConfig.isPasspoint()) { 238 return config.FQDN.equals(mConfig.providerFriendlyName); 239 } else { 240 return ssid.equals(removeDoubleQuotes(config.SSID)) 241 && security == getSecurity(config) 242 && (mConfig == null || mConfig.shared == config.shared); 243 } 244 } 245 246 public WifiConfiguration getConfig() { 247 return mConfig; 248 } 249 250 public void clearConfig() { 251 mConfig = null; 252 networkId = WifiConfiguration.INVALID_NETWORK_ID; 253 } 254 255 public WifiInfo getInfo() { 256 return mInfo; 257 } 258 259 public int getLevel() { 260 if (mRssi == Integer.MAX_VALUE) { 261 return -1; 262 } 263 return WifiManager.calculateSignalLevel(mRssi, 4); 264 } 265 266 public int getRssi() { 267 int rssi = Integer.MIN_VALUE; 268 for (ScanResult result : mScanResultCache.snapshot().values()) { 269 if (result.level > rssi) { 270 rssi = result.level; 271 } 272 } 273 274 return rssi; 275 } 276 277 public long getSeen() { 278 long seen = 0; 279 for (ScanResult result : mScanResultCache.snapshot().values()) { 280 if (result.timestamp > seen) { 281 seen = result.timestamp; 282 } 283 } 284 285 return seen; 286 } 287 288 public NetworkInfo getNetworkInfo() { 289 return mNetworkInfo; 290 } 291 292 public int getSecurity() { 293 return security; 294 } 295 296 public String getSecurityString(boolean concise) { 297 Context context = mContext; 298 if (mConfig != null && mConfig.isPasspoint()) { 299 return concise ? context.getString(R.string.wifi_security_short_eap) : 300 context.getString(R.string.wifi_security_eap); 301 } 302 switch(security) { 303 case SECURITY_EAP: 304 return concise ? context.getString(R.string.wifi_security_short_eap) : 305 context.getString(R.string.wifi_security_eap); 306 case SECURITY_PSK: 307 switch (pskType) { 308 case PSK_WPA: 309 return concise ? context.getString(R.string.wifi_security_short_wpa) : 310 context.getString(R.string.wifi_security_wpa); 311 case PSK_WPA2: 312 return concise ? context.getString(R.string.wifi_security_short_wpa2) : 313 context.getString(R.string.wifi_security_wpa2); 314 case PSK_WPA_WPA2: 315 return concise ? context.getString(R.string.wifi_security_short_wpa_wpa2) : 316 context.getString(R.string.wifi_security_wpa_wpa2); 317 case PSK_UNKNOWN: 318 default: 319 return concise ? context.getString(R.string.wifi_security_short_psk_generic) 320 : context.getString(R.string.wifi_security_psk_generic); 321 } 322 case SECURITY_WEP: 323 return concise ? context.getString(R.string.wifi_security_short_wep) : 324 context.getString(R.string.wifi_security_wep); 325 case SECURITY_NONE: 326 default: 327 return concise ? "" : context.getString(R.string.wifi_security_none); 328 } 329 } 330 331 public String getSsidStr() { 332 return ssid; 333 } 334 335 public CharSequence getSsid() { 336 SpannableString str = new SpannableString(ssid); 337 str.setSpan(new TtsSpan.VerbatimBuilder(ssid).build(), 0, ssid.length(), 338 Spannable.SPAN_INCLUSIVE_INCLUSIVE); 339 return str; 340 } 341 342 public String getConfigName() { 343 if (mConfig != null && mConfig.isPasspoint()) { 344 return mConfig.providerFriendlyName; 345 } else { 346 return ssid; 347 } 348 } 349 350 public DetailedState getDetailedState() { 351 return mNetworkInfo != null ? mNetworkInfo.getDetailedState() : null; 352 } 353 354 public String getSavedNetworkSummary() { 355 if (mConfig != null) { 356 PackageManager pm = mContext.getPackageManager(); 357 String systemName = pm.getNameForUid(android.os.Process.SYSTEM_UID); 358 int userId = UserHandle.getUserId(mConfig.creatorUid); 359 ApplicationInfo appInfo = null; 360 if (mConfig.creatorName != null && mConfig.creatorName.equals(systemName)) { 361 appInfo = mContext.getApplicationInfo(); 362 } else { 363 try { 364 IPackageManager ipm = AppGlobals.getPackageManager(); 365 appInfo = ipm.getApplicationInfo(mConfig.creatorName, 0 /* flags */, userId); 366 } catch (RemoteException rex) { 367 } 368 } 369 if (appInfo != null && 370 !appInfo.packageName.equals(mContext.getString(R.string.settings_package)) && 371 !appInfo.packageName.equals( 372 mContext.getString(R.string.certinstaller_package))) { 373 return mContext.getString(R.string.saved_network, appInfo.loadLabel(pm)); 374 } 375 } 376 return ""; 377 } 378 379 public String getSummary() { 380 return getSettingsSummary(); 381 } 382 383 public String getSettingsSummary() { 384 // Update to new summary 385 StringBuilder summary = new StringBuilder(); 386 387 if (isActive() && mConfig != null && mConfig.isPasspoint()) { 388 // This is the active connection on passpoint 389 summary.append(getSummary(mContext, getDetailedState(), 390 false, mConfig.providerFriendlyName)); 391 } else if (isActive()) { 392 // This is the active connection on non-passpoint network 393 summary.append(getSummary(mContext, getDetailedState(), 394 mInfo != null && mInfo.isEphemeral())); 395 } else if (mConfig != null && mConfig.isPasspoint()) { 396 String format = mContext.getString(R.string.available_via_passpoint); 397 summary.append(String.format(format, mConfig.providerFriendlyName)); 398 } else if (mConfig != null && mConfig.hasNoInternetAccess()) { 399 summary.append(mContext.getString(R.string.wifi_no_internet)); 400 } else if (mConfig != null && !mConfig.getNetworkSelectionStatus().isNetworkEnabled()) { 401 WifiConfiguration.NetworkSelectionStatus networkStatus = 402 mConfig.getNetworkSelectionStatus(); 403 switch (networkStatus.getNetworkSelectionDisableReason()) { 404 case WifiConfiguration.NetworkSelectionStatus.DISABLED_AUTHENTICATION_FAILURE: 405 summary.append(mContext.getString(R.string.wifi_disabled_password_failure)); 406 break; 407 case WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE: 408 case WifiConfiguration.NetworkSelectionStatus.DISABLED_DNS_FAILURE: 409 summary.append(mContext.getString(R.string.wifi_disabled_network_failure)); 410 break; 411 case WifiConfiguration.NetworkSelectionStatus.DISABLED_ASSOCIATION_REJECTION: 412 summary.append(mContext.getString(R.string.wifi_disabled_generic)); 413 break; 414 } 415 } else if (mRssi == Integer.MAX_VALUE) { // Wifi out of range 416 summary.append(mContext.getString(R.string.wifi_not_in_range)); 417 } else { // In range, not disabled. 418 if (mConfig != null) { // Is saved network 419 summary.append(mContext.getString(R.string.wifi_remembered)); 420 } 421 } 422 423 if (WifiTracker.sVerboseLogging > 0) { 424 // Add RSSI/band information for this config, what was seen up to 6 seconds ago 425 // verbose WiFi Logging is only turned on thru developers settings 426 if (mInfo != null && mNetworkInfo != null) { // This is the active connection 427 summary.append(" f=" + Integer.toString(mInfo.getFrequency())); 428 } 429 summary.append(" " + getVisibilityStatus()); 430 if (mConfig != null && !mConfig.getNetworkSelectionStatus().isNetworkEnabled()) { 431 summary.append(" (" + mConfig.getNetworkSelectionStatus().getNetworkStatusString()); 432 if (mConfig.getNetworkSelectionStatus().getDisableTime() > 0) { 433 long now = System.currentTimeMillis(); 434 long diff = (now - mConfig.getNetworkSelectionStatus().getDisableTime()) / 1000; 435 long sec = diff%60; //seconds 436 long min = (diff/60)%60; //minutes 437 long hour = (min/60)%60; //hours 438 summary.append(", "); 439 if (hour > 0) summary.append(Long.toString(hour) + "h "); 440 summary.append( Long.toString(min) + "m "); 441 summary.append( Long.toString(sec) + "s "); 442 } 443 summary.append(")"); 444 } 445 446 if (mConfig != null) { 447 WifiConfiguration.NetworkSelectionStatus networkStatus = 448 mConfig.getNetworkSelectionStatus(); 449 for (int index = WifiConfiguration.NetworkSelectionStatus.NETWORK_SELECTION_ENABLE; 450 index < WifiConfiguration.NetworkSelectionStatus 451 .NETWORK_SELECTION_DISABLED_MAX; index++) { 452 if (networkStatus.getDisableReasonCounter(index) != 0) { 453 summary.append(" " + WifiConfiguration.NetworkSelectionStatus 454 .getNetworkDisableReasonString(index) + "=" 455 + networkStatus.getDisableReasonCounter(index)); 456 } 457 } 458 } 459 } 460 return summary.toString(); 461 } 462 463 /** 464 * Returns the visibility status of the WifiConfiguration. 465 * 466 * @return autojoin debugging information 467 * TODO: use a string formatter 468 * ["rssi 5Ghz", "num results on 5GHz" / "rssi 5Ghz", "num results on 5GHz"] 469 * For instance [-40,5/-30,2] 470 */ 471 private String getVisibilityStatus() { 472 StringBuilder visibility = new StringBuilder(); 473 StringBuilder scans24GHz = null; 474 StringBuilder scans5GHz = null; 475 String bssid = null; 476 477 long now = System.currentTimeMillis(); 478 479 if (mInfo != null) { 480 bssid = mInfo.getBSSID(); 481 if (bssid != null) { 482 visibility.append(" ").append(bssid); 483 } 484 visibility.append(" rssi=").append(mInfo.getRssi()); 485 visibility.append(" "); 486 visibility.append(" score=").append(mInfo.score); 487 visibility.append(String.format(" tx=%.1f,", mInfo.txSuccessRate)); 488 visibility.append(String.format("%.1f,", mInfo.txRetriesRate)); 489 visibility.append(String.format("%.1f ", mInfo.txBadRate)); 490 visibility.append(String.format("rx=%.1f", mInfo.rxSuccessRate)); 491 } 492 493 int rssi5 = WifiConfiguration.INVALID_RSSI; 494 int rssi24 = WifiConfiguration.INVALID_RSSI; 495 int num5 = 0; 496 int num24 = 0; 497 int numBlackListed = 0; 498 int n24 = 0; // Number scan results we included in the string 499 int n5 = 0; // Number scan results we included in the string 500 Map<String, ScanResult> list = mScanResultCache.snapshot(); 501 // TODO: sort list by RSSI or age 502 for (ScanResult result : list.values()) { 503 504 if (result.frequency >= LOWER_FREQ_5GHZ 505 && result.frequency <= HIGHER_FREQ_5GHZ) { 506 // Strictly speaking: [4915, 5825] 507 // number of known BSSID on 5GHz band 508 num5 = num5 + 1; 509 } else if (result.frequency >= LOWER_FREQ_24GHZ 510 && result.frequency <= HIGHER_FREQ_24GHZ) { 511 // Strictly speaking: [2412, 2482] 512 // number of known BSSID on 2.4Ghz band 513 num24 = num24 + 1; 514 } 515 516 517 if (result.frequency >= LOWER_FREQ_5GHZ 518 && result.frequency <= HIGHER_FREQ_5GHZ) { 519 if (result.level > rssi5) { 520 rssi5 = result.level; 521 } 522 if (n5 < 4) { 523 if (scans5GHz == null) scans5GHz = new StringBuilder(); 524 scans5GHz.append(" \n{").append(result.BSSID); 525 if (bssid != null && result.BSSID.equals(bssid)) scans5GHz.append("*"); 526 scans5GHz.append("=").append(result.frequency); 527 scans5GHz.append(",").append(result.level); 528 scans5GHz.append("}"); 529 n5++; 530 } 531 } else if (result.frequency >= LOWER_FREQ_24GHZ 532 && result.frequency <= HIGHER_FREQ_24GHZ) { 533 if (result.level > rssi24) { 534 rssi24 = result.level; 535 } 536 if (n24 < 4) { 537 if (scans24GHz == null) scans24GHz = new StringBuilder(); 538 scans24GHz.append(" \n{").append(result.BSSID); 539 if (bssid != null && result.BSSID.equals(bssid)) scans24GHz.append("*"); 540 scans24GHz.append("=").append(result.frequency); 541 scans24GHz.append(",").append(result.level); 542 scans24GHz.append("}"); 543 n24++; 544 } 545 } 546 } 547 visibility.append(" ["); 548 if (num24 > 0) { 549 visibility.append("(").append(num24).append(")"); 550 if (n24 <= 4) { 551 if (scans24GHz != null) { 552 visibility.append(scans24GHz.toString()); 553 } 554 } else { 555 visibility.append("max=").append(rssi24); 556 if (scans24GHz != null) { 557 visibility.append(",").append(scans24GHz.toString()); 558 } 559 } 560 } 561 visibility.append(";"); 562 if (num5 > 0) { 563 visibility.append("(").append(num5).append(")"); 564 if (n5 <= 4) { 565 if (scans5GHz != null) { 566 visibility.append(scans5GHz.toString()); 567 } 568 } else { 569 visibility.append("max=").append(rssi5); 570 if (scans5GHz != null) { 571 visibility.append(",").append(scans5GHz.toString()); 572 } 573 } 574 } 575 if (numBlackListed > 0) 576 visibility.append("!").append(numBlackListed); 577 visibility.append("]"); 578 579 return visibility.toString(); 580 } 581 582 /** 583 * Return whether this is the active connection. 584 * For ephemeral connections (networkId is invalid), this returns false if the network is 585 * disconnected. 586 */ 587 public boolean isActive() { 588 return mNetworkInfo != null && 589 (networkId != WifiConfiguration.INVALID_NETWORK_ID || 590 mNetworkInfo.getState() != State.DISCONNECTED); 591 } 592 593 public boolean isConnectable() { 594 return getLevel() != -1 && getDetailedState() == null; 595 } 596 597 public boolean isEphemeral() { 598 return mInfo != null && mInfo.isEphemeral() && 599 mNetworkInfo != null && mNetworkInfo.getState() != State.DISCONNECTED; 600 } 601 602 public boolean isPasspoint() { 603 return mConfig != null && mConfig.isPasspoint(); 604 } 605 606 /** 607 * Return whether the given {@link WifiInfo} is for this access point. 608 * If the current AP does not have a network Id then the config is used to 609 * match based on SSID and security. 610 */ 611 private boolean isInfoForThisAccessPoint(WifiConfiguration config, WifiInfo info) { 612 if (isPasspoint() == false && networkId != WifiConfiguration.INVALID_NETWORK_ID) { 613 return networkId == info.getNetworkId(); 614 } else if (config != null) { 615 return matches(config); 616 } 617 else { 618 // Might be an ephemeral connection with no WifiConfiguration. Try matching on SSID. 619 // (Note that we only do this if the WifiConfiguration explicitly equals INVALID). 620 // TODO: Handle hex string SSIDs. 621 return ssid.equals(removeDoubleQuotes(info.getSSID())); 622 } 623 } 624 625 public boolean isSaved() { 626 return networkId != WifiConfiguration.INVALID_NETWORK_ID; 627 } 628 629 public Object getTag() { 630 return mTag; 631 } 632 633 public void setTag(Object tag) { 634 mTag = tag; 635 } 636 637 /** 638 * Generate and save a default wifiConfiguration with common values. 639 * Can only be called for unsecured networks. 640 */ 641 public void generateOpenNetworkConfig() { 642 if (security != SECURITY_NONE) 643 throw new IllegalStateException(); 644 if (mConfig != null) 645 return; 646 mConfig = new WifiConfiguration(); 647 mConfig.SSID = AccessPoint.convertToQuotedString(ssid); 648 mConfig.allowedKeyManagement.set(KeyMgmt.NONE); 649 } 650 651 void loadConfig(WifiConfiguration config) { 652 if (config.isPasspoint()) 653 ssid = config.providerFriendlyName; 654 else 655 ssid = (config.SSID == null ? "" : removeDoubleQuotes(config.SSID)); 656 657 security = getSecurity(config); 658 networkId = config.networkId; 659 mConfig = config; 660 } 661 662 private void initWithScanResult(ScanResult result) { 663 ssid = result.SSID; 664 security = getSecurity(result); 665 if (security == SECURITY_PSK) 666 pskType = getPskType(result); 667 mRssi = result.level; 668 mSeen = result.timestamp; 669 } 670 671 public void saveWifiState(Bundle savedState) { 672 if (ssid != null) savedState.putString(KEY_SSID, getSsidStr()); 673 savedState.putInt(KEY_SECURITY, security); 674 savedState.putInt(KEY_PSKTYPE, pskType); 675 if (mConfig != null) savedState.putParcelable(KEY_CONFIG, mConfig); 676 savedState.putParcelable(KEY_WIFIINFO, mInfo); 677 savedState.putParcelableArrayList(KEY_SCANRESULTCACHE, 678 new ArrayList<ScanResult>(mScanResultCache.snapshot().values())); 679 if (mNetworkInfo != null) { 680 savedState.putParcelable(KEY_NETWORKINFO, mNetworkInfo); 681 } 682 } 683 684 public void setListener(AccessPointListener listener) { 685 mAccessPointListener = listener; 686 } 687 688 boolean update(ScanResult result) { 689 if (matches(result)) { 690 /* Update the LRU timestamp, if BSSID exists */ 691 mScanResultCache.get(result.BSSID); 692 693 /* Add or update the scan result for the BSSID */ 694 mScanResultCache.put(result.BSSID, result); 695 696 int oldLevel = getLevel(); 697 int oldRssi = getRssi(); 698 mSeen = getSeen(); 699 mRssi = (getRssi() + oldRssi)/2; 700 int newLevel = getLevel(); 701 702 if (newLevel > 0 && newLevel != oldLevel && mAccessPointListener != null) { 703 mAccessPointListener.onLevelChanged(this); 704 } 705 // This flag only comes from scans, is not easily saved in config 706 if (security == SECURITY_PSK) { 707 pskType = getPskType(result); 708 } 709 710 if (mAccessPointListener != null) { 711 mAccessPointListener.onAccessPointChanged(this); 712 } 713 714 return true; 715 } 716 return false; 717 } 718 719 boolean update(WifiConfiguration config, WifiInfo info, NetworkInfo networkInfo) { 720 boolean reorder = false; 721 if (info != null && isInfoForThisAccessPoint(config, info)) { 722 reorder = (mInfo == null); 723 mRssi = info.getRssi(); 724 mInfo = info; 725 mNetworkInfo = networkInfo; 726 if (mAccessPointListener != null) { 727 mAccessPointListener.onAccessPointChanged(this); 728 } 729 } else if (mInfo != null) { 730 reorder = true; 731 mInfo = null; 732 mNetworkInfo = null; 733 if (mAccessPointListener != null) { 734 mAccessPointListener.onAccessPointChanged(this); 735 } 736 } 737 return reorder; 738 } 739 740 void update(WifiConfiguration config) { 741 mConfig = config; 742 networkId = config.networkId; 743 if (mAccessPointListener != null) { 744 mAccessPointListener.onAccessPointChanged(this); 745 } 746 } 747 748 void setRssi(int rssi) { 749 mRssi = rssi; 750 } 751 752 public static String getSummary(Context context, String ssid, DetailedState state, 753 boolean isEphemeral, String passpointProvider) { 754 if (state == DetailedState.CONNECTED && ssid == null) { 755 if (TextUtils.isEmpty(passpointProvider) == false) { 756 // Special case for connected + passpoint networks. 757 String format = context.getString(R.string.connected_via_passpoint); 758 return String.format(format, passpointProvider); 759 } else if (isEphemeral) { 760 // Special case for connected + ephemeral networks. 761 return context.getString(R.string.connected_via_wfa); 762 } 763 } 764 765 // Case when there is wifi connected without internet connectivity. 766 final ConnectivityManager cm = (ConnectivityManager) 767 context.getSystemService(Context.CONNECTIVITY_SERVICE); 768 if (state == DetailedState.CONNECTED) { 769 IWifiManager wifiManager = IWifiManager.Stub.asInterface( 770 ServiceManager.getService(Context.WIFI_SERVICE)); 771 Network nw; 772 773 try { 774 nw = wifiManager.getCurrentNetwork(); 775 } catch (RemoteException e) { 776 nw = null; 777 } 778 NetworkCapabilities nc = cm.getNetworkCapabilities(nw); 779 if (nc != null && !nc.hasCapability(nc.NET_CAPABILITY_VALIDATED)) { 780 return context.getString(R.string.wifi_connected_no_internet); 781 } 782 } 783 784 String[] formats = context.getResources().getStringArray((ssid == null) 785 ? R.array.wifi_status : R.array.wifi_status_with_ssid); 786 int index = state.ordinal(); 787 788 if (index >= formats.length || formats[index].length() == 0) { 789 return ""; 790 } 791 return String.format(formats[index], ssid); 792 } 793 794 public static String getSummary(Context context, DetailedState state, boolean isEphemeral) { 795 return getSummary(context, null, state, isEphemeral, null); 796 } 797 798 public static String getSummary(Context context, DetailedState state, boolean isEphemeral, 799 String passpointProvider) { 800 return getSummary(context, null, state, isEphemeral, passpointProvider); 801 } 802 803 public static String convertToQuotedString(String string) { 804 return "\"" + string + "\""; 805 } 806 807 private static int getPskType(ScanResult result) { 808 boolean wpa = result.capabilities.contains("WPA-PSK"); 809 boolean wpa2 = result.capabilities.contains("WPA2-PSK"); 810 if (wpa2 && wpa) { 811 return PSK_WPA_WPA2; 812 } else if (wpa2) { 813 return PSK_WPA2; 814 } else if (wpa) { 815 return PSK_WPA; 816 } else { 817 Log.w(TAG, "Received abnormal flag string: " + result.capabilities); 818 return PSK_UNKNOWN; 819 } 820 } 821 822 private static int getSecurity(ScanResult result) { 823 if (result.capabilities.contains("WEP")) { 824 return SECURITY_WEP; 825 } else if (result.capabilities.contains("PSK")) { 826 return SECURITY_PSK; 827 } else if (result.capabilities.contains("EAP")) { 828 return SECURITY_EAP; 829 } 830 return SECURITY_NONE; 831 } 832 833 static int getSecurity(WifiConfiguration config) { 834 if (config.allowedKeyManagement.get(KeyMgmt.WPA_PSK)) { 835 return SECURITY_PSK; 836 } 837 if (config.allowedKeyManagement.get(KeyMgmt.WPA_EAP) || 838 config.allowedKeyManagement.get(KeyMgmt.IEEE8021X)) { 839 return SECURITY_EAP; 840 } 841 return (config.wepKeys[0] != null) ? SECURITY_WEP : SECURITY_NONE; 842 } 843 844 public static String securityToString(int security, int pskType) { 845 if (security == SECURITY_WEP) { 846 return "WEP"; 847 } else if (security == SECURITY_PSK) { 848 if (pskType == PSK_WPA) { 849 return "WPA"; 850 } else if (pskType == PSK_WPA2) { 851 return "WPA2"; 852 } else if (pskType == PSK_WPA_WPA2) { 853 return "WPA_WPA2"; 854 } 855 return "PSK"; 856 } else if (security == SECURITY_EAP) { 857 return "EAP"; 858 } 859 return "NONE"; 860 } 861 862 static String removeDoubleQuotes(String string) { 863 if (TextUtils.isEmpty(string)) { 864 return ""; 865 } 866 int length = string.length(); 867 if ((length > 1) && (string.charAt(0) == '"') 868 && (string.charAt(length - 1) == '"')) { 869 return string.substring(1, length - 1); 870 } 871 return string; 872 } 873 874 public interface AccessPointListener { 875 void onAccessPointChanged(AccessPoint accessPoint); 876 void onLevelChanged(AccessPoint accessPoint); 877 } 878} 879