Move Setting constants for NetworkStack

From mainline perspective, we should use android flag api
instead of using Settings. Thus, move the definitions into
NetworkStack and apply new flag design.

Bug: 123167629
Test: atest NetworkStackTests
Change-Id: I9602263f0bff5d8e942bd652de69ccfcb3034a2f
Merged-In: I6820300c412f94989a5fce7bd6c6f2a3b983b96e
Merged-In: I4f6d130ffbee14f5087d75a8bc211680a34be682
(cherry picked from commit 01440ea909732e5d6f81604b61841f07b3d83217)

2 files changed, 41 insertions, 7 deletions

diff --git a/src/android/net/util/NetworkStackUtils.java b/src/android/net/util/NetworkStackUtils.java
index 8226787..97e8186 100644
--- a/src/android/net/util/NetworkStackUtils.java
+++ b/src/android/net/util/NetworkStackUtils.java
@@ -35,6 +35,34 @@ public class NetworkStackUtils {
     // TODO: Refer to DeviceConfig definition.
     public static final String NAMESPACE_CONNECTIVITY = "connectivity";
 
+    /**
+     * A list of captive portal detection specifications used in addition to the fallback URLs.
+     * Each spec has the format url@@/@@statusCodeRegex@@/@@contentRegex. Specs are separated
+     * by "@@,@@".
+     */
+    public static final String CAPTIVE_PORTAL_FALLBACK_PROBE_SPECS =
+            "captive_portal_fallback_probe_specs";
+
+    /**
+     * A comma separated list of URLs used for captive portal detection in addition to the
+     * fallback HTTP url associated with the CAPTIVE_PORTAL_FALLBACK_URL settings.
+     */
+    public static final String CAPTIVE_PORTAL_OTHER_FALLBACK_URLS =
+            "captive_portal_other_fallback_urls";
+
+    /**
+     * Which User-Agent string to use in the header of the captive portal detection probes.
+     * The User-Agent field is unset when this setting has no value (HttpUrlConnection default).
+     */
+    public static final String CAPTIVE_PORTAL_USER_AGENT = "captive_portal_user_agent";
+
+    /**
+     * Whether to use HTTPS for network validation. This is enabled by default and the setting
+     * needs to be set to 0 to disable it. This setting is a misnomer because captive portals
+     * don't actually use HTTPS, but it's consistent with the other settings.
+     */
+    public static final String CAPTIVE_PORTAL_USE_HTTPS = "captive_portal_use_https";
+
     static {
         System.loadLibrary("networkstackutilsjni");
     }
diff --git a/src/com/android/server/connectivity/NetworkMonitor.java b/src/com/android/server/connectivity/NetworkMonitor.java
index 27d4203..093235e 100644
--- a/src/com/android/server/connectivity/NetworkMonitor.java
+++ b/src/com/android/server/connectivity/NetworkMonitor.java
@@ -43,6 +43,10 @@ import static android.net.util.DataStallUtils.DEFAULT_DATA_STALL_EVALUATION_TYPE
 import static android.net.util.DataStallUtils.DEFAULT_DATA_STALL_MIN_EVALUATE_TIME_MS;
 import static android.net.util.DataStallUtils.DEFAULT_DATA_STALL_VALID_DNS_TIME_THRESHOLD_MS;
 import static android.net.util.DataStallUtils.DEFAULT_DNS_LOG_SIZE;
+import static android.net.util.NetworkStackUtils.CAPTIVE_PORTAL_FALLBACK_PROBE_SPECS;
+import static android.net.util.NetworkStackUtils.CAPTIVE_PORTAL_OTHER_FALLBACK_URLS;
+import static android.net.util.NetworkStackUtils.CAPTIVE_PORTAL_USER_AGENT;
+import static android.net.util.NetworkStackUtils.CAPTIVE_PORTAL_USE_HTTPS;
 import static android.net.util.NetworkStackUtils.NAMESPACE_CONNECTIVITY;
 import static android.net.util.NetworkStackUtils.isEmpty;
 
@@ -1171,7 +1175,8 @@ public class NetworkMonitor extends StateMachine {
     }
 
     private boolean getUseHttpsValidation() {
-        return mDependencies.getSetting(mContext, Settings.Global.CAPTIVE_PORTAL_USE_HTTPS, 1) == 1;
+        return mDependencies.getDeviceConfigPropertyInt(NAMESPACE_CONNECTIVITY,
+                CAPTIVE_PORTAL_USE_HTTPS, 1) == 1;
     }
 
     private String getCaptivePortalServerHttpsUrl() {
@@ -1224,8 +1229,8 @@ public class NetworkMonitor extends StateMachine {
 
             final URL[] settingProviderUrls;
             if (!TextUtils.isEmpty(firstUrl)) {
-                final String otherUrls = mDependencies.getSetting(mContext,
-                        Settings.Global.CAPTIVE_PORTAL_OTHER_FALLBACK_URLS, "");
+                final String otherUrls = mDependencies.getDeviceConfigProperty(
+                        NAMESPACE_CONNECTIVITY, CAPTIVE_PORTAL_OTHER_FALLBACK_URLS, "");
                 // otherUrls may be empty, but .split() ignores trailing empty strings
                 final String separator = ",";
                 final String[] urls = (firstUrl + separator + otherUrls).split(separator);
@@ -1245,8 +1250,9 @@ public class NetworkMonitor extends StateMachine {
 
     private CaptivePortalProbeSpec[] makeCaptivePortalFallbackProbeSpecs() {
         try {
-            final String settingsValue = mDependencies.getSetting(
-                    mContext, Settings.Global.CAPTIVE_PORTAL_FALLBACK_PROBE_SPECS, null);
+            final String settingsValue = mDependencies.getDeviceConfigProperty(
+                    NAMESPACE_CONNECTIVITY, CAPTIVE_PORTAL_FALLBACK_PROBE_SPECS, null);
+
             final CaptivePortalProbeSpec[] emptySpecs = new CaptivePortalProbeSpec[0];
             final CaptivePortalProbeSpec[] providerValue = TextUtils.isEmpty(settingsValue)
                     ? emptySpecs
@@ -1340,8 +1346,8 @@ public class NetworkMonitor extends StateMachine {
     }
 
     private String getCaptivePortalUserAgent() {
-        return mDependencies.getSetting(mContext,
-                Settings.Global.CAPTIVE_PORTAL_USER_AGENT, DEFAULT_USER_AGENT);
+        return mDependencies.getDeviceConfigProperty(NAMESPACE_CONNECTIVITY,
+                CAPTIVE_PORTAL_USER_AGENT, DEFAULT_USER_AGENT);
     }
 
     private URL nextFallbackUrl() {