AccessPoint.java revision 8d106780b6a638552749e54e169fc72537d4bccc
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)) && security == getSecurity(config); 241 } 242 243 public WifiConfiguration getConfig() { 244 return mConfig; 245 } 246 247 public void clearConfig() { 248 mConfig = null; 249 networkId = WifiConfiguration.INVALID_NETWORK_ID; 250 } 251 252 public WifiInfo getInfo() { 253 return mInfo; 254 } 255 256 public int getLevel() { 257 if (mRssi == Integer.MAX_VALUE) { 258 return -1; 259 } 260 return WifiManager.calculateSignalLevel(mRssi, 4); 261 } 262 263 public int getRssi() { 264 int rssi = Integer.MIN_VALUE; 265 for (ScanResult result : mScanResultCache.snapshot().values()) { 266 if (result.level > rssi) { 267 rssi = result.level; 268 } 269 } 270 271 return rssi; 272 } 273 274 public long getSeen() { 275 long seen = 0; 276 for (ScanResult result : mScanResultCache.snapshot().values()) { 277 if (result.timestamp > seen) { 278 seen = result.timestamp; 279 } 280 } 281 282 return seen; 283 } 284 285 public NetworkInfo getNetworkInfo() { 286 return mNetworkInfo; 287 } 288 289 public int getSecurity() { 290 return security; 291 } 292 293 public String getSecurityString(boolean concise) { 294 Context context = mContext; 295 if (mConfig != null && mConfig.isPasspoint()) { 296 return concise ? context.getString(R.string.wifi_security_short_eap) : 297 context.getString(R.string.wifi_security_eap); 298 } 299 switch(security) { 300 case SECURITY_EAP: 301 return concise ? context.getString(R.string.wifi_security_short_eap) : 302 context.getString(R.string.wifi_security_eap); 303 case SECURITY_PSK: 304 switch (pskType) { 305 case PSK_WPA: 306 return concise ? context.getString(R.string.wifi_security_short_wpa) : 307 context.getString(R.string.wifi_security_wpa); 308 case PSK_WPA2: 309 return concise ? context.getString(R.string.wifi_security_short_wpa2) : 310 context.getString(R.string.wifi_security_wpa2); 311 case PSK_WPA_WPA2: 312 return concise ? context.getString(R.string.wifi_security_short_wpa_wpa2) : 313 context.getString(R.string.wifi_security_wpa_wpa2); 314 case PSK_UNKNOWN: 315 default: 316 return concise ? context.getString(R.string.wifi_security_short_psk_generic) 317 : context.getString(R.string.wifi_security_psk_generic); 318 } 319 case SECURITY_WEP: 320 return concise ? context.getString(R.string.wifi_security_short_wep) : 321 context.getString(R.string.wifi_security_wep); 322 case SECURITY_NONE: 323 default: 324 return concise ? "" : context.getString(R.string.wifi_security_none); 325 } 326 } 327 328 public String getSsidStr() { 329 return ssid; 330 } 331 332 public CharSequence getSsid() { 333 SpannableString str = new SpannableString(ssid); 334 str.setSpan(new TtsSpan.VerbatimBuilder(ssid).build(), 0, ssid.length(), 335 Spannable.SPAN_INCLUSIVE_INCLUSIVE); 336 return str; 337 } 338 339 public String getConfigName() { 340 if (mConfig != null && mConfig.isPasspoint()) { 341 return mConfig.providerFriendlyName; 342 } else { 343 return ssid; 344 } 345 } 346 347 public DetailedState getDetailedState() { 348 return mNetworkInfo != null ? mNetworkInfo.getDetailedState() : null; 349 } 350 351 public String getSavedNetworkSummary() { 352 if (mConfig != null) { 353 PackageManager pm = mContext.getPackageManager(); 354 String systemName = pm.getNameForUid(android.os.Process.SYSTEM_UID); 355 int userId = UserHandle.getUserId(mConfig.creatorUid); 356 ApplicationInfo appInfo = null; 357 if (mConfig.creatorName != null && mConfig.creatorName.equals(systemName)) { 358 appInfo = mContext.getApplicationInfo(); 359 } else { 360 try { 361 IPackageManager ipm = AppGlobals.getPackageManager(); 362 appInfo = ipm.getApplicationInfo(mConfig.creatorName, 0 /* flags */, userId); 363 } catch (RemoteException rex) { 364 } 365 } 366 if (appInfo != null && 367 !appInfo.packageName.equals(mContext.getString(R.string.settings_package)) && 368 !appInfo.packageName.equals( 369 mContext.getString(R.string.certinstaller_package))) { 370 return mContext.getString(R.string.saved_network, appInfo.loadLabel(pm)); 371 } 372 } 373 return ""; 374 } 375 376 public String getSummary() { 377 return getSettingsSummary(); 378 } 379 380 public String getSettingsSummary() { 381 // Update to new summary 382 StringBuilder summary = new StringBuilder(); 383 384 if (isActive() && mConfig != null && mConfig.isPasspoint()) { 385 // This is the active connection on passpoint 386 summary.append(getSummary(mContext, getDetailedState(), 387 false, mConfig.providerFriendlyName)); 388 } else if (isActive()) { 389 // This is the active connection on non-passpoint network 390 summary.append(getSummary(mContext, getDetailedState(), 391 mInfo != null && mInfo.isEphemeral())); 392 } else if (mConfig != null && mConfig.isPasspoint()) { 393 String format = mContext.getString(R.string.available_via_passpoint); 394 summary.append(String.format(format, mConfig.providerFriendlyName)); 395 } else if (mConfig != null && mConfig.hasNoInternetAccess()) { 396 summary.append(mContext.getString(R.string.wifi_no_internet)); 397 } else if (mConfig != null && !mConfig.getNetworkSelectionStatus().isNetworkEnabled()) { 398 WifiConfiguration.NetworkSelectionStatus networkStatus = 399 mConfig.getNetworkSelectionStatus(); 400 switch (networkStatus.getNetworkSelectionDisableReason()) { 401 case WifiConfiguration.NetworkSelectionStatus.DISABLED_AUTHENTICATION_FAILURE: 402 summary.append(mContext.getString(R.string.wifi_disabled_password_failure)); 403 break; 404 case WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE: 405 case WifiConfiguration.NetworkSelectionStatus.DISABLED_DNS_FAILURE: 406 summary.append(mContext.getString(R.string.wifi_disabled_network_failure)); 407 break; 408 case WifiConfiguration.NetworkSelectionStatus.DISABLED_ASSOCIATION_REJECTION: 409 summary.append(mContext.getString(R.string.wifi_disabled_generic)); 410 break; 411 } 412 } else if (mRssi == Integer.MAX_VALUE) { // Wifi out of range 413 summary.append(mContext.getString(R.string.wifi_not_in_range)); 414 } else { // In range, not disabled. 415 if (mConfig != null) { // Is saved network 416 summary.append(mContext.getString(R.string.wifi_remembered)); 417 } 418 } 419 420 if (WifiTracker.sVerboseLogging > 0) { 421 // Add RSSI/band information for this config, what was seen up to 6 seconds ago 422 // verbose WiFi Logging is only turned on thru developers settings 423 if (mInfo != null && mNetworkInfo != null) { // This is the active connection 424 summary.append(" f=" + Integer.toString(mInfo.getFrequency())); 425 } 426 summary.append(" " + getVisibilityStatus()); 427 if (mConfig != null && !mConfig.getNetworkSelectionStatus().isNetworkEnabled()) { 428 summary.append(" (" + mConfig.getNetworkSelectionStatus().getNetworkStatusString()); 429 if (mConfig.getNetworkSelectionStatus().getDisableTime() > 0) { 430 long now = System.currentTimeMillis(); 431 long diff = (now - mConfig.getNetworkSelectionStatus().getDisableTime()) / 1000; 432 long sec = diff%60; //seconds 433 long min = (diff/60)%60; //minutes 434 long hour = (min/60)%60; //hours 435 summary.append(", "); 436 if (hour > 0) summary.append(Long.toString(hour) + "h "); 437 summary.append( Long.toString(min) + "m "); 438 summary.append( Long.toString(sec) + "s "); 439 } 440 summary.append(")"); 441 } 442 443 if (mConfig != null) { 444 WifiConfiguration.NetworkSelectionStatus networkStatus = 445 mConfig.getNetworkSelectionStatus(); 446 for (int index = WifiConfiguration.NetworkSelectionStatus.NETWORK_SELECTION_ENABLE; 447 index < WifiConfiguration.NetworkSelectionStatus 448 .NETWORK_SELECTION_DISABLED_MAX; index++) { 449 if (networkStatus.getDisableReasonCounter(index) != 0) { 450 summary.append(" " + WifiConfiguration.NetworkSelectionStatus 451 .getNetworkDisableReasonString(index) + "=" 452 + networkStatus.getDisableReasonCounter(index)); 453 } 454 } 455 } 456 } 457 return summary.toString(); 458 } 459 460 /** 461 * Returns the visibility status of the WifiConfiguration. 462 * 463 * @return autojoin debugging information 464 * TODO: use a string formatter 465 * ["rssi 5Ghz", "num results on 5GHz" / "rssi 5Ghz", "num results on 5GHz"] 466 * For instance [-40,5/-30,2] 467 */ 468 private String getVisibilityStatus() { 469 StringBuilder visibility = new StringBuilder(); 470 StringBuilder scans24GHz = null; 471 StringBuilder scans5GHz = null; 472 String bssid = null; 473 474 long now = System.currentTimeMillis(); 475 476 if (mInfo != null) { 477 bssid = mInfo.getBSSID(); 478 if (bssid != null) { 479 visibility.append(" ").append(bssid); 480 } 481 visibility.append(" rssi=").append(mInfo.getRssi()); 482 visibility.append(" "); 483 visibility.append(" score=").append(mInfo.score); 484 visibility.append(String.format(" tx=%.1f,", mInfo.txSuccessRate)); 485 visibility.append(String.format("%.1f,", mInfo.txRetriesRate)); 486 visibility.append(String.format("%.1f ", mInfo.txBadRate)); 487 visibility.append(String.format("rx=%.1f", mInfo.rxSuccessRate)); 488 } 489 490 int rssi5 = WifiConfiguration.INVALID_RSSI; 491 int rssi24 = WifiConfiguration.INVALID_RSSI; 492 int num5 = 0; 493 int num24 = 0; 494 int numBlackListed = 0; 495 int n24 = 0; // Number scan results we included in the string 496 int n5 = 0; // Number scan results we included in the string 497 Map<String, ScanResult> list = mScanResultCache.snapshot(); 498 // TODO: sort list by RSSI or age 499 for (ScanResult result : list.values()) { 500 501 if (result.frequency >= LOWER_FREQ_5GHZ 502 && result.frequency <= HIGHER_FREQ_5GHZ) { 503 // Strictly speaking: [4915, 5825] 504 // number of known BSSID on 5GHz band 505 num5 = num5 + 1; 506 } else if (result.frequency >= LOWER_FREQ_24GHZ 507 && result.frequency <= HIGHER_FREQ_24GHZ) { 508 // Strictly speaking: [2412, 2482] 509 // number of known BSSID on 2.4Ghz band 510 num24 = num24 + 1; 511 } 512 513 514 if (result.frequency >= LOWER_FREQ_5GHZ 515 && result.frequency <= HIGHER_FREQ_5GHZ) { 516 if (result.level > rssi5) { 517 rssi5 = result.level; 518 } 519 if (n5 < 4) { 520 if (scans5GHz == null) scans5GHz = new StringBuilder(); 521 scans5GHz.append(" \n{").append(result.BSSID); 522 if (bssid != null && result.BSSID.equals(bssid)) scans5GHz.append("*"); 523 scans5GHz.append("=").append(result.frequency); 524 scans5GHz.append(",").append(result.level); 525 scans5GHz.append("}"); 526 n5++; 527 } 528 } else if (result.frequency >= LOWER_FREQ_24GHZ 529 && result.frequency <= HIGHER_FREQ_24GHZ) { 530 if (result.level > rssi24) { 531 rssi24 = result.level; 532 } 533 if (n24 < 4) { 534 if (scans24GHz == null) scans24GHz = new StringBuilder(); 535 scans24GHz.append(" \n{").append(result.BSSID); 536 if (bssid != null && result.BSSID.equals(bssid)) scans24GHz.append("*"); 537 scans24GHz.append("=").append(result.frequency); 538 scans24GHz.append(",").append(result.level); 539 scans24GHz.append("}"); 540 n24++; 541 } 542 } 543 } 544 visibility.append(" ["); 545 if (num24 > 0) { 546 visibility.append("(").append(num24).append(")"); 547 if (n24 <= 4) { 548 if (scans24GHz != null) { 549 visibility.append(scans24GHz.toString()); 550 } 551 } else { 552 visibility.append("max=").append(rssi24); 553 if (scans24GHz != null) { 554 visibility.append(",").append(scans24GHz.toString()); 555 } 556 } 557 } 558 visibility.append(";"); 559 if (num5 > 0) { 560 visibility.append("(").append(num5).append(")"); 561 if (n5 <= 4) { 562 if (scans5GHz != null) { 563 visibility.append(scans5GHz.toString()); 564 } 565 } else { 566 visibility.append("max=").append(rssi5); 567 if (scans5GHz != null) { 568 visibility.append(",").append(scans5GHz.toString()); 569 } 570 } 571 } 572 if (numBlackListed > 0) 573 visibility.append("!").append(numBlackListed); 574 visibility.append("]"); 575 576 return visibility.toString(); 577 } 578 579 /** 580 * Return whether this is the active connection. 581 * For ephemeral connections (networkId is invalid), this returns false if the network is 582 * disconnected. 583 */ 584 public boolean isActive() { 585 return mNetworkInfo != null && 586 (networkId != WifiConfiguration.INVALID_NETWORK_ID || 587 mNetworkInfo.getState() != State.DISCONNECTED); 588 } 589 590 public boolean isConnectable() { 591 return getLevel() != -1 && getDetailedState() == null; 592 } 593 594 public boolean isEphemeral() { 595 return mInfo != null && mInfo.isEphemeral() && 596 mNetworkInfo != null && mNetworkInfo.getState() != State.DISCONNECTED; 597 } 598 599 public boolean isPasspoint() { 600 return mConfig != null && mConfig.isPasspoint(); 601 } 602 603 /** 604 * Return whether the given {@link WifiInfo} is for this access point. 605 * If the current AP does not have a network Id then the config is used to 606 * match based on SSID and security. 607 */ 608 private boolean isInfoForThisAccessPoint(WifiConfiguration config, WifiInfo info) { 609 if (isPasspoint() == false && networkId != WifiConfiguration.INVALID_NETWORK_ID) { 610 return networkId == info.getNetworkId(); 611 } else if (config != null) { 612 return matches(config); 613 } 614 else { 615 // Might be an ephemeral connection with no WifiConfiguration. Try matching on SSID. 616 // (Note that we only do this if the WifiConfiguration explicitly equals INVALID). 617 // TODO: Handle hex string SSIDs. 618 return ssid.equals(removeDoubleQuotes(info.getSSID())); 619 } 620 } 621 622 public boolean isSaved() { 623 return networkId != WifiConfiguration.INVALID_NETWORK_ID; 624 } 625 626 public Object getTag() { 627 return mTag; 628 } 629 630 public void setTag(Object tag) { 631 mTag = tag; 632 } 633 634 /** 635 * Generate and save a default wifiConfiguration with common values. 636 * Can only be called for unsecured networks. 637 */ 638 public void generateOpenNetworkConfig() { 639 if (security != SECURITY_NONE) 640 throw new IllegalStateException(); 641 if (mConfig != null) 642 return; 643 mConfig = new WifiConfiguration(); 644 mConfig.SSID = AccessPoint.convertToQuotedString(ssid); 645 mConfig.allowedKeyManagement.set(KeyMgmt.NONE); 646 } 647 648 void loadConfig(WifiConfiguration config) { 649 if (config.isPasspoint()) 650 ssid = config.providerFriendlyName; 651 else 652 ssid = (config.SSID == null ? "" : removeDoubleQuotes(config.SSID)); 653 654 security = getSecurity(config); 655 networkId = config.networkId; 656 mConfig = config; 657 } 658 659 private void initWithScanResult(ScanResult result) { 660 ssid = result.SSID; 661 security = getSecurity(result); 662 if (security == SECURITY_PSK) 663 pskType = getPskType(result); 664 mRssi = result.level; 665 mSeen = result.timestamp; 666 } 667 668 public void saveWifiState(Bundle savedState) { 669 if (ssid != null) savedState.putString(KEY_SSID, getSsidStr()); 670 savedState.putInt(KEY_SECURITY, security); 671 savedState.putInt(KEY_PSKTYPE, pskType); 672 if (mConfig != null) savedState.putParcelable(KEY_CONFIG, mConfig); 673 savedState.putParcelable(KEY_WIFIINFO, mInfo); 674 savedState.putParcelableArrayList(KEY_SCANRESULTCACHE, 675 new ArrayList<ScanResult>(mScanResultCache.snapshot().values())); 676 if (mNetworkInfo != null) { 677 savedState.putParcelable(KEY_NETWORKINFO, mNetworkInfo); 678 } 679 } 680 681 public void setListener(AccessPointListener listener) { 682 mAccessPointListener = listener; 683 } 684 685 boolean update(ScanResult result) { 686 if (matches(result)) { 687 /* Update the LRU timestamp, if BSSID exists */ 688 mScanResultCache.get(result.BSSID); 689 690 /* Add or update the scan result for the BSSID */ 691 mScanResultCache.put(result.BSSID, result); 692 693 int oldLevel = getLevel(); 694 int oldRssi = getRssi(); 695 mSeen = getSeen(); 696 mRssi = (getRssi() + oldRssi)/2; 697 int newLevel = getLevel(); 698 699 if (newLevel > 0 && newLevel != oldLevel && mAccessPointListener != null) { 700 mAccessPointListener.onLevelChanged(this); 701 } 702 // This flag only comes from scans, is not easily saved in config 703 if (security == SECURITY_PSK) { 704 pskType = getPskType(result); 705 } 706 707 if (mAccessPointListener != null) { 708 mAccessPointListener.onAccessPointChanged(this); 709 } 710 711 return true; 712 } 713 return false; 714 } 715 716 boolean update(WifiConfiguration config, WifiInfo info, NetworkInfo networkInfo) { 717 boolean reorder = false; 718 if (info != null && isInfoForThisAccessPoint(config, info)) { 719 reorder = (mInfo == null); 720 mRssi = info.getRssi(); 721 mInfo = info; 722 mNetworkInfo = networkInfo; 723 if (mAccessPointListener != null) { 724 mAccessPointListener.onAccessPointChanged(this); 725 } 726 } else if (mInfo != null) { 727 reorder = true; 728 mInfo = null; 729 mNetworkInfo = null; 730 if (mAccessPointListener != null) { 731 mAccessPointListener.onAccessPointChanged(this); 732 } 733 } 734 return reorder; 735 } 736 737 void update(WifiConfiguration config) { 738 mConfig = config; 739 networkId = config.networkId; 740 if (mAccessPointListener != null) { 741 mAccessPointListener.onAccessPointChanged(this); 742 } 743 } 744 745 public static String getSummary(Context context, String ssid, DetailedState state, 746 boolean isEphemeral, String passpointProvider) { 747 if (state == DetailedState.CONNECTED && ssid == null) { 748 if (TextUtils.isEmpty(passpointProvider) == false) { 749 // Special case for connected + passpoint networks. 750 String format = context.getString(R.string.connected_via_passpoint); 751 return String.format(format, passpointProvider); 752 } else if (isEphemeral) { 753 // Special case for connected + ephemeral networks. 754 return context.getString(R.string.connected_via_wfa); 755 } 756 } 757 758 // Case when there is wifi connected without internet connectivity. 759 final ConnectivityManager cm = (ConnectivityManager) 760 context.getSystemService(Context.CONNECTIVITY_SERVICE); 761 if (state == DetailedState.CONNECTED) { 762 IWifiManager wifiManager = IWifiManager.Stub.asInterface( 763 ServiceManager.getService(Context.WIFI_SERVICE)); 764 Network nw; 765 766 try { 767 nw = wifiManager.getCurrentNetwork(); 768 } catch (RemoteException e) { 769 nw = null; 770 } 771 NetworkCapabilities nc = cm.getNetworkCapabilities(nw); 772 if (nc != null && !nc.hasCapability(nc.NET_CAPABILITY_VALIDATED)) { 773 return context.getString(R.string.wifi_connected_no_internet); 774 } 775 } 776 777 String[] formats = context.getResources().getStringArray((ssid == null) 778 ? R.array.wifi_status : R.array.wifi_status_with_ssid); 779 int index = state.ordinal(); 780 781 if (index >= formats.length || formats[index].length() == 0) { 782 return ""; 783 } 784 return String.format(formats[index], ssid); 785 } 786 787 public static String getSummary(Context context, DetailedState state, boolean isEphemeral) { 788 return getSummary(context, null, state, isEphemeral, null); 789 } 790 791 public static String getSummary(Context context, DetailedState state, boolean isEphemeral, 792 String passpointProvider) { 793 return getSummary(context, null, state, isEphemeral, passpointProvider); 794 } 795 796 public static String convertToQuotedString(String string) { 797 return "\"" + string + "\""; 798 } 799 800 private static int getPskType(ScanResult result) { 801 boolean wpa = result.capabilities.contains("WPA-PSK"); 802 boolean wpa2 = result.capabilities.contains("WPA2-PSK"); 803 if (wpa2 && wpa) { 804 return PSK_WPA_WPA2; 805 } else if (wpa2) { 806 return PSK_WPA2; 807 } else if (wpa) { 808 return PSK_WPA; 809 } else { 810 Log.w(TAG, "Received abnormal flag string: " + result.capabilities); 811 return PSK_UNKNOWN; 812 } 813 } 814 815 private static int getSecurity(ScanResult result) { 816 if (result.capabilities.contains("WEP")) { 817 return SECURITY_WEP; 818 } else if (result.capabilities.contains("PSK")) { 819 return SECURITY_PSK; 820 } else if (result.capabilities.contains("EAP")) { 821 return SECURITY_EAP; 822 } 823 return SECURITY_NONE; 824 } 825 826 static int getSecurity(WifiConfiguration config) { 827 if (config.allowedKeyManagement.get(KeyMgmt.WPA_PSK)) { 828 return SECURITY_PSK; 829 } 830 if (config.allowedKeyManagement.get(KeyMgmt.WPA_EAP) || 831 config.allowedKeyManagement.get(KeyMgmt.IEEE8021X)) { 832 return SECURITY_EAP; 833 } 834 return (config.wepKeys[0] != null) ? SECURITY_WEP : SECURITY_NONE; 835 } 836 837 public static String securityToString(int security, int pskType) { 838 if (security == SECURITY_WEP) { 839 return "WEP"; 840 } else if (security == SECURITY_PSK) { 841 if (pskType == PSK_WPA) { 842 return "WPA"; 843 } else if (pskType == PSK_WPA2) { 844 return "WPA2"; 845 } else if (pskType == PSK_WPA_WPA2) { 846 return "WPA_WPA2"; 847 } 848 return "PSK"; 849 } else if (security == SECURITY_EAP) { 850 return "EAP"; 851 } 852 return "NONE"; 853 } 854 855 static String removeDoubleQuotes(String string) { 856 if (TextUtils.isEmpty(string)) { 857 return ""; 858 } 859 int length = string.length(); 860 if ((length > 1) && (string.charAt(0) == '"') 861 && (string.charAt(length - 1) == '"')) { 862 return string.substring(1, length - 1); 863 } 864 return string; 865 } 866 867 public interface AccessPointListener { 868 void onAccessPointChanged(AccessPoint accessPoint); 869 void onLevelChanged(AccessPoint accessPoint); 870 } 871} 872