[WifiTrackerLib] Use unique ID instead of FQDN for Passpoint key

Change PasspointWifiEntry's key to use a unique id instead of the FQDN
to allow separate entries for different PasspointConfigurations with the
same FQDN.

Test: atest WifiTrackerLibTests
Bug: 148556276
Change-Id: I611f0056cd36df31152c4cdb373af1e6ad9c9a8c

7 files changed, 39 insertions, 27 deletions

diff --git a/libs/WifiTrackerLib/src/com/android/wifitrackerlib/PasspointNetworkDetailsTracker.java b/libs/WifiTrackerLib/src/com/android/wifitrackerlib/PasspointNetworkDetailsTracker.java
index bdfacca9e..5cee304f1 100644
--- a/libs/WifiTrackerLib/src/com/android/wifitrackerlib/PasspointNetworkDetailsTracker.java
+++ b/libs/WifiTrackerLib/src/com/android/wifitrackerlib/PasspointNetworkDetailsTracker.java
@@ -18,7 +18,7 @@ package com.android.wifitrackerlib;
 
 import static androidx.core.util.Preconditions.checkNotNull;
 
-import static com.android.wifitrackerlib.PasspointWifiEntry.fqdnToPasspointWifiEntryKey;
+import static com.android.wifitrackerlib.PasspointWifiEntry.uniqueIdToPasspointWifiEntryKey;
 import static com.android.wifitrackerlib.WifiEntry.CONNECTED_STATE_CONNECTED;
 
 import android.content.Context;
@@ -70,10 +70,12 @@ class PasspointNetworkDetailsTracker extends NetworkDetailsTracker {
 
         PasspointConfiguration passpointConfig = mWifiManager.getPasspointConfigurations().stream()
                 .filter(config -> TextUtils.equals(
-                        fqdnToPasspointWifiEntryKey(config.getHomeSp().getFqdn()), key))
+                        uniqueIdToPasspointWifiEntryKey(config.getUniqueId()), key))
                 .findAny().get();
 
-        checkNotNull(passpointConfig, "Cannot find PasspointConfiguration with matching FQDN!");
+        checkNotNull(passpointConfig,
+                "Cannot find PasspointConfiguration with matching unique identifier: "
+                        + passpointConfig.getUniqueId());
 
         mChosenEntry = new PasspointWifiEntry(mContext, mMainHandler, passpointConfig,
                 mWifiManager, false /* forSavedNetworksPage */);
@@ -139,7 +141,7 @@ class PasspointNetworkDetailsTracker extends NetworkDetailsTracker {
                 mWifiManager.getAllMatchingWifiConfigs(scanResults);
         for (Pair<WifiConfiguration, Map<Integer, List<ScanResult>>> pair : matchingWifiConfigs) {
             final WifiConfiguration wifiConfig = pair.first;
-            final String key = fqdnToPasspointWifiEntryKey(wifiConfig.FQDN);
+            final String key = uniqueIdToPasspointWifiEntryKey(wifiConfig.getKey());
 
             if (TextUtils.equals(key, mChosenEntry.getKey())) {
                 mChosenEntry.updateScanResultInfo(wifiConfig,
@@ -179,7 +181,7 @@ class PasspointNetworkDetailsTracker extends NetworkDetailsTracker {
     private void conditionallyUpdateConfig() {
         mWifiManager.getPasspointConfigurations().stream()
                 .filter(config -> TextUtils.equals(
-                        fqdnToPasspointWifiEntryKey(config.getHomeSp().getFqdn()),
+                        uniqueIdToPasspointWifiEntryKey(config.getUniqueId()),
                         mChosenEntry.getKey()))
                 .findAny().ifPresent(config -> mChosenEntry.updatePasspointConfig(config));
     }
diff --git a/libs/WifiTrackerLib/src/com/android/wifitrackerlib/PasspointWifiEntry.java b/libs/WifiTrackerLib/src/com/android/wifitrackerlib/PasspointWifiEntry.java
index db773ea64..6d03f1726 100644
--- a/libs/WifiTrackerLib/src/com/android/wifitrackerlib/PasspointWifiEntry.java
+++ b/libs/WifiTrackerLib/src/com/android/wifitrackerlib/PasspointWifiEntry.java
@@ -30,7 +30,6 @@ import android.net.wifi.WifiConfiguration;
 import android.net.wifi.WifiInfo;
 import android.net.wifi.WifiManager;
 import android.net.wifi.hotspot2.PasspointConfiguration;
-import android.net.wifi.hotspot2.pps.HomeSp;
 import android.os.Handler;
 import android.text.TextUtils;
 
@@ -84,9 +83,8 @@ public class PasspointWifiEntry extends WifiEntry {
 
         mContext = context;
         mPasspointConfig = passpointConfig;
-        final HomeSp homeSp = passpointConfig.getHomeSp();
-        mKey = fqdnToPasspointWifiEntryKey(homeSp.getFqdn());
-        mFriendlyName = homeSp.getFriendlyName();
+        mKey = uniqueIdToPasspointWifiEntryKey(passpointConfig.getUniqueId());
+        mFriendlyName = passpointConfig.getHomeSp().getFriendlyName();
         mSecurity = SECURITY_NONE; //TODO: Should this always be Enterprise?
         mSubscriptionExpirationTimeInMillis =
                 passpointConfig.getSubscriptionExpirationTimeInMillis();
@@ -387,9 +385,9 @@ public class PasspointWifiEntry extends WifiEntry {
     }
 
     @NonNull
-    static String fqdnToPasspointWifiEntryKey(@NonNull String fqdn) {
-        checkNotNull(fqdn, "Cannot create key with null fqdn!");
-        return KEY_PREFIX + fqdn;
+    static String uniqueIdToPasspointWifiEntryKey(@NonNull String uniqueId) {
+        checkNotNull(uniqueId, "Cannot create key with null unique id!");
+        return KEY_PREFIX + uniqueId;
     }
 
     @Override
diff --git a/libs/WifiTrackerLib/src/com/android/wifitrackerlib/SavedNetworkTracker.java b/libs/WifiTrackerLib/src/com/android/wifitrackerlib/SavedNetworkTracker.java
index 7bab36a0a..f6016677f 100644
--- a/libs/WifiTrackerLib/src/com/android/wifitrackerlib/SavedNetworkTracker.java
+++ b/libs/WifiTrackerLib/src/com/android/wifitrackerlib/SavedNetworkTracker.java
@@ -18,7 +18,7 @@ package com.android.wifitrackerlib;
 
 import static androidx.core.util.Preconditions.checkNotNull;
 
-import static com.android.wifitrackerlib.PasspointWifiEntry.fqdnToPasspointWifiEntryKey;
+import static com.android.wifitrackerlib.PasspointWifiEntry.uniqueIdToPasspointWifiEntryKey;
 import static com.android.wifitrackerlib.StandardWifiEntry.wifiConfigToStandardWifiEntryKey;
 import static com.android.wifitrackerlib.Utils.mapScanResultsToKey;
 
@@ -221,8 +221,8 @@ public class SavedNetworkTracker extends BaseWifiTracker {
                 mWifiManager.getAllMatchingWifiConfigs(scanResults);
         for (Pair<WifiConfiguration, Map<Integer, List<ScanResult>>> pair : matchingWifiConfigs) {
             final WifiConfiguration wifiConfig = pair.first;
-            final String key = fqdnToPasspointWifiEntryKey(wifiConfig.FQDN);
-            // Skip in case we don't have a PasspointWifiEntry for the returned fqdn
+            final String key = uniqueIdToPasspointWifiEntryKey(wifiConfig.getKey());
+            // Skip in case we don't have a PasspointWifiEntry for the returned unique identifier.
             if (!mPasspointWifiEntryCache.containsKey(key)) {
                 continue;
             }
@@ -325,7 +325,7 @@ public class SavedNetworkTracker extends BaseWifiTracker {
 
         final Map<String, PasspointConfiguration> passpointConfigsByKey =
                 configs.stream().collect(toMap(
-                        (config) -> fqdnToPasspointWifiEntryKey(config.getHomeSp().getFqdn()),
+                        (config) -> uniqueIdToPasspointWifiEntryKey(config.getUniqueId()),
                         Function.identity()));
 
         // Iterate through current entries and update each entry's config or remove if no config
diff --git a/libs/WifiTrackerLib/src/com/android/wifitrackerlib/WifiPickerTracker.java b/libs/WifiTrackerLib/src/com/android/wifitrackerlib/WifiPickerTracker.java
index 13ea43d2a..21d3f2c27 100644
--- a/libs/WifiTrackerLib/src/com/android/wifitrackerlib/WifiPickerTracker.java
+++ b/libs/WifiTrackerLib/src/com/android/wifitrackerlib/WifiPickerTracker.java
@@ -19,7 +19,7 @@ package com.android.wifitrackerlib;
 import static androidx.core.util.Preconditions.checkNotNull;
 
 import static com.android.wifitrackerlib.OsuWifiEntry.osuProviderToOsuWifiEntryKey;
-import static com.android.wifitrackerlib.PasspointWifiEntry.fqdnToPasspointWifiEntryKey;
+import static com.android.wifitrackerlib.PasspointWifiEntry.uniqueIdToPasspointWifiEntryKey;
 import static com.android.wifitrackerlib.StandardWifiEntry.wifiConfigToStandardWifiEntryKey;
 import static com.android.wifitrackerlib.Utils.mapScanResultsToKey;
 import static com.android.wifitrackerlib.WifiEntry.CONNECTED_STATE_CONNECTED;
@@ -333,8 +333,8 @@ public class WifiPickerTracker extends BaseWifiTracker {
                     pair.second.get(WifiManager.PASSPOINT_HOME_NETWORK);
             final List<ScanResult> roamingScans =
                     pair.second.get(WifiManager.PASSPOINT_ROAMING_NETWORK);
-            final String key = fqdnToPasspointWifiEntryKey(wifiConfig.FQDN);
-            // Skip in case we don't have a Passpoint configuration for the returned fqdn
+            final String key = uniqueIdToPasspointWifiEntryKey(wifiConfig.getKey());
+            // Skip in case we don't have a Passpoint configuration for the returned unique key
             if (!mPasspointConfigCache.containsKey(key)) {
                 continue;
             }
@@ -455,8 +455,8 @@ public class WifiPickerTracker extends BaseWifiTracker {
 
         mPasspointConfigCache.clear();
         mPasspointConfigCache.putAll(configs.stream().collect(
-                toMap((config) -> fqdnToPasspointWifiEntryKey(
-                        config.getHomeSp().getFqdn()), Function.identity())));
+                toMap((config) -> uniqueIdToPasspointWifiEntryKey(
+                        config.getUniqueId()), Function.identity())));
 
         // Iterate through current entries and update each entry's config or remove if no config
         // matches the entry anymore.
@@ -530,12 +530,16 @@ public class WifiPickerTracker extends BaseWifiTracker {
             return;
         }
 
+        // TODO(b/148556276): This logic will match the fqdn of the connected passpoint network to
+        // the first PasspointConfiguration found. This may or may not represent the actual
+        // connection, so we will need to use WifiInfo.getPasspointUniqueId() once it is ready to be
+        // a public API.
         final String connectedFqdn = wifiInfo.getPasspointFqdn();
         mPasspointConfigCache.values().stream()
                 .filter(config ->
                         config.getHomeSp().getFqdn() == connectedFqdn
                                 && !mPasspointWifiEntryCache.containsKey(
-                                        fqdnToPasspointWifiEntryKey(connectedFqdn)))
+                                        uniqueIdToPasspointWifiEntryKey(config.getUniqueId())))
                 .findAny().ifPresent(config -> {
                     final PasspointWifiEntry connectedEntry =
                             new PasspointWifiEntry(mContext, mMainHandler, config, mWifiManager,
diff --git a/libs/WifiTrackerLib/tests/src/com/android/wifitrackerlib/PasspointWifiEntryTest.java b/libs/WifiTrackerLib/tests/src/com/android/wifitrackerlib/PasspointWifiEntryTest.java
index 0a1870e58..0759f5e42 100644
--- a/libs/WifiTrackerLib/tests/src/com/android/wifitrackerlib/PasspointWifiEntryTest.java
+++ b/libs/WifiTrackerLib/tests/src/com/android/wifitrackerlib/PasspointWifiEntryTest.java
@@ -25,6 +25,7 @@ import android.content.Context;
 import android.content.res.Resources;
 import android.net.wifi.WifiManager;
 import android.net.wifi.hotspot2.PasspointConfiguration;
+import android.net.wifi.hotspot2.pps.Credential;
 import android.net.wifi.hotspot2.pps.HomeSp;
 import android.os.Handler;
 import android.os.test.TestLooper;
@@ -83,6 +84,7 @@ public class PasspointWifiEntryTest {
         HomeSp homeSp = new HomeSp();
         homeSp.setFqdn("fqdn");
         passpointConfiguration.setHomeSp(homeSp);
+        passpointConfiguration.setCredential(new Credential());
         return passpointConfiguration;
     }
 
diff --git a/libs/WifiTrackerLib/tests/src/com/android/wifitrackerlib/SavedNetworkTrackerTest.java b/libs/WifiTrackerLib/tests/src/com/android/wifitrackerlib/SavedNetworkTrackerTest.java
index ae4d671ba..f78900df0 100644
--- a/libs/WifiTrackerLib/tests/src/com/android/wifitrackerlib/SavedNetworkTrackerTest.java
+++ b/libs/WifiTrackerLib/tests/src/com/android/wifitrackerlib/SavedNetworkTrackerTest.java
@@ -34,6 +34,7 @@ import android.net.NetworkScoreManager;
 import android.net.wifi.WifiConfiguration;
 import android.net.wifi.WifiManager;
 import android.net.wifi.hotspot2.PasspointConfiguration;
+import android.net.wifi.hotspot2.pps.Credential;
 import android.net.wifi.hotspot2.pps.HomeSp;
 import android.os.Handler;
 import android.os.test.TestLooper;
@@ -321,6 +322,7 @@ public class SavedNetworkTrackerTest {
         homeSp.setFqdn("fqdn");
         homeSp.setFriendlyName("friendlyName");
         passpointConfig.setHomeSp(homeSp);
+        passpointConfig.setCredential(new Credential());
         when(mMockWifiManager.getPasspointConfigurations())
                 .thenReturn(Collections.singletonList(passpointConfig));
 
diff --git a/libs/WifiTrackerLib/tests/src/com/android/wifitrackerlib/WifiPickerTrackerTest.java b/libs/WifiTrackerLib/tests/src/com/android/wifitrackerlib/WifiPickerTrackerTest.java
index 4f572d562..7de9a9e3a 100644
--- a/libs/WifiTrackerLib/tests/src/com/android/wifitrackerlib/WifiPickerTrackerTest.java
+++ b/libs/WifiTrackerLib/tests/src/com/android/wifitrackerlib/WifiPickerTrackerTest.java
@@ -22,6 +22,7 @@ import static com.google.common.truth.Truth.assertThat;
 
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.atLeastOnce;
+import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
@@ -36,6 +37,7 @@ import android.net.wifi.WifiConfiguration;
 import android.net.wifi.WifiInfo;
 import android.net.wifi.WifiManager;
 import android.net.wifi.hotspot2.PasspointConfiguration;
+import android.net.wifi.hotspot2.pps.Credential;
 import android.net.wifi.hotspot2.pps.HomeSp;
 import android.os.Handler;
 import android.os.test.TestLooper;
@@ -510,6 +512,7 @@ public class WifiPickerTrackerTest {
         homeSp.setFqdn("fqdn");
         homeSp.setFriendlyName("friendlyName");
         passpointConfig.setHomeSp(homeSp);
+        passpointConfig.setCredential(new Credential());
         when(mMockWifiManager.getPasspointConfigurations())
                 .thenReturn(Collections.singletonList(passpointConfig));
         wifiPickerTracker.onStart();
@@ -517,8 +520,8 @@ public class WifiPickerTrackerTest {
                 any(), any(), any());
         mTestLooper.dispatchAll();
 
-        final WifiConfiguration wifiConfig = new WifiConfiguration();
-        wifiConfig.FQDN = "fqdn";
+        final WifiConfiguration wifiConfig = spy(new WifiConfiguration());
+        when(wifiConfig.getKey()).thenReturn(passpointConfig.getUniqueId());
         final Map<Integer, List<ScanResult>> mapping = new HashMap<>();
         mapping.put(WifiManager.PASSPOINT_HOME_NETWORK, Collections.singletonList(
                 buildScanResult("ssid", "bssid", START_MILLIS)));
@@ -537,13 +540,14 @@ public class WifiPickerTrackerTest {
         final String fqdn = "fqdn";
         final String friendlyName = "friendlyName";
         final WifiPickerTracker wifiPickerTracker = createTestWifiPickerTracker();
-        final PasspointConfiguration config = new PasspointConfiguration();
+        final PasspointConfiguration passpointConfig = new PasspointConfiguration();
         final HomeSp homeSp = new HomeSp();
         homeSp.setFqdn(fqdn);
         homeSp.setFriendlyName(friendlyName);
-        config.setHomeSp(homeSp);
+        passpointConfig.setHomeSp(homeSp);
+        passpointConfig.setCredential(new Credential());
         when(mMockWifiManager.getPasspointConfigurations())
-                .thenReturn(Collections.singletonList(config));
+                .thenReturn(Collections.singletonList(passpointConfig));
         when(mMockWifiInfo.isPasspointAp()).thenReturn(true);
         when(mMockWifiInfo.getPasspointFqdn()).thenReturn(fqdn);
         when(mMockWifiInfo.getRssi()).thenReturn(-50);