am 1b7f99b9: Merge "Retry captiveportal check even if only one addr" into klp-dev (ec4d5da6) · Commits · e / os / android_frameworks_base

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

+34 −21

Original line number	Diff line number	Diff line
		@@ -4247,27 +4247,35 @@ public class ConnectivityService extends IConnectivityManager.Stub {
		log("isMobileOk: linkHasIpv4=" + linkHasIpv4
		+ " linkHasIpv6=" + linkHasIpv6);

		// Loop through at most 3 valid addresses or all of the address or until
		final ArrayList<InetAddress> validAddresses =
		new ArrayList<InetAddress>(addresses.length);

		for (InetAddress addr : addresses) {
		if (((addr instanceof Inet4Address) && linkHasIpv4) \|\|
		((addr instanceof Inet6Address) && linkHasIpv6)) {
		validAddresses.add(addr);
		}
		}

		if (validAddresses.size() == 0) {
		return CMP_RESULT_CODE_NO_CONNECTION;
		}

		int addrTried = 0;
		while (true) {
		// Loop through at most 3 valid addresses or until
		// we run out of time
		int loops = Math.min(3, addresses.length);
		for(int validAddr=0, addrTried=0;
		(validAddr < loops) && (addrTried < addresses.length)
		&& (SystemClock.elapsedRealtime() < endTime);
		addrTried ++) {

		// Choose the address at random but make sure its type is supported
		// TODO: This doesn't work 100% of the time, because we may end up
		// trying the same invalid address more than once and ignoring one
		// of the valid addresses.
		InetAddress hostAddr = addresses[rand.nextInt(addresses.length)];
		if (((hostAddr instanceof Inet4Address) && linkHasIpv4)
		\|\| ((hostAddr instanceof Inet6Address) && linkHasIpv6)) {
		// Valid address, so use it
		validAddr += 1;
		} else {
		// Invalid address so try next address
		continue;
		if (addrTried++ >= 3) {
		log("too many loops tried - giving up");
		break;
		}
		if (SystemClock.elapsedRealtime() >= endTime) {
		log("spend too much time - giving up");
		break;
		}

		InetAddress hostAddr = validAddresses.get(rand.nextInt(
		validAddresses.size()));

		// Make a route to host so we check the specific interface.
		if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI,
		@@ -4283,8 +4291,10 @@ public class ConnectivityService extends IConnectivityManager.Stub {
		}

		// Rewrite the url to have numeric address to use the specific route.
		// Add a pointless random query param to fool proxies into not caching.
		URL newUrl = new URL(orgUri.getScheme(),
		hostAddr.getHostAddress(), orgUri.getPath());
		hostAddr.getHostAddress(),
		orgUri.getPath() + "?q=" + rand.nextInt(Integer.MAX_VALUE));
		log("isMobileOk: newUrl=" + newUrl);

		HttpURLConnection urlConn = null;
		@@ -4321,6 +4331,9 @@ public class ConnectivityService extends IConnectivityManager.Stub {
		// occasions where a server returned 200 even though
		// the device didn't have a "warm" sim.
		log("isMobileOk: not expected responseCode=" + responseCode);
		// TODO - it would be nice in the single-address case to do
		// another DNS resolve here, but flushing the cache is a bit
		// heavy-handed.
		result = CMP_RESULT_CODE_REDIRECTED;
		}
		} catch (Exception e) {