commit 741013d144f68b803a44184b7b50e41bfc3ff135
author Niklas Lindgren <niklas.lindgren@sony.com> Fri Dec 07 11:08:04 2018 +0100
committer Remi NGUYEN VAN <reminv@google.com> Tue Apr 09 10:23:53 2019 +0900
tree 9924ebc160263c98b5d4c19f46a130bc9b9fc1fc
parent f7eaedccd65d1f69763702dce8557e1cd14a0eb8

Expose captive portal urls for configuration

Carriers in Mainland China need to customize certain captive portal
urls. The main issue is that google servers are not accessible in
Mainland China.

Added the following captive portal resources to be targeted for overlay.
- config_captive_portal_http_url
- config_captive_portal_https_url
- config_captive_portal_fallback_urls (string-array)
- config_captive_portal_fallback_probe_specs (string-array)

These values can be customized for e g diffent countries

Bug: 111819230
Test: atest FrameworksNetTests NetworkStackTests
Test: Add a product RRO that targets a specific country code,
insert a SIM card that matches that country code and check the log
what URL is used.
Change-Id: I38a294a5e14417f65e96e76235ea153c53c4d7cc

services/core/java/com/android/server/ConnectivityService.java

diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 9d2965a..e3382c3 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -108,7 +108,6 @@
 import android.net.metrics.IpConnectivityLog;
 import android.net.metrics.NetworkEvent;
 import android.net.netlink.InetDiagMessage;
-import android.net.shared.NetworkMonitorUtils;
 import android.net.shared.PrivateDnsConfig;
 import android.net.util.MultinetworkPolicyTracker;
 import android.net.util.NetdService;
@@ -238,6 +237,16 @@
 
     private static final boolean LOGD_BLOCKED_NETWORKINFO = true;
 
+    /**
+     * Default URL to use for {@link #getCaptivePortalServerUrl()}. This should not be changed
+     * by OEMs for configuration purposes, as this value is overridden by
+     * Settings.Global.CAPTIVE_PORTAL_HTTP_URL.
+     * R.string.config_networkCaptivePortalServerUrl should be overridden instead for this purpose
+     * (preferably via runtime resource overlays).
+     */
+    private static final String DEFAULT_CAPTIVE_PORTAL_HTTP_URL =
+            "http://connectivitycheck.gstatic.com/generate_204";
+
     // TODO: create better separation between radio types and network types
 
     // how long to wait before switching back to a radio's default network
@@ -6712,9 +6721,20 @@
     @Override
     public String getCaptivePortalServerUrl() {
         enforceConnectivityInternalPermission();
-        final String defaultUrl = mContext.getResources().getString(
-                R.string.config_networkDefaultCaptivePortalServerUrl);
-        return NetworkMonitorUtils.getCaptivePortalServerHttpUrl(mContext, defaultUrl);
+        String settingUrl = mContext.getResources().getString(
+                R.string.config_networkCaptivePortalServerUrl);
+
+        if (!TextUtils.isEmpty(settingUrl)) {
+            return settingUrl;
+        }
+
+        settingUrl = Settings.Global.getString(mContext.getContentResolver(),
+                Settings.Global.CAPTIVE_PORTAL_HTTP_URL);
+        if (!TextUtils.isEmpty(settingUrl)) {
+            return settingUrl;
+        }
+
+        return DEFAULT_CAPTIVE_PORTAL_HTTP_URL;
     }
 
     @Override