OpenSource/Telegram-Android
OpenSource/Telegram-Android
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Update ConnectionsManager.java to improve proxy domain resolving

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1- www.google.com with -H header does not resolve to dns.google.com and is causing unnecessary 200ms+ loss when resolving proxy hostnames

2- TTL of 5 minutes for caching is unnecessarily high and causes late refreshing of IPs, causing downtime.
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Arshia shakeri 2024-05-22 15:32:12 +08:00 committed by GitHub
parent d494ea8cb5
commit dae9761e1a
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1 changed files with 2 additions and 3 deletions
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TMessagesProj/src/main/java/org/telegram/tgnet/ConnectionsManager.java
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@ -833,7 +833,7 @@ public class ConnectionsManager extends BaseController {
public static void getHostByName(String hostName, long address) { public static void getHostByName(String hostName, long address) {
AndroidUtilities.runOnUIThread(() -> { AndroidUtilities.runOnUIThread(() -> {
ResolvedDomain resolvedDomain = dnsCache.get(hostName); ResolvedDomain resolvedDomain = dnsCache.get(hostName);
if (resolvedDomain != null && SystemClock.elapsedRealtime() - resolvedDomain.ttl < 5 * 60 * 1000) { if (resolvedDomain != null && SystemClock.elapsedRealtime() - resolvedDomain.ttl < 1 * 60 * 1000) {
native_onHostNameResolved(hostName, address, resolvedDomain.getAddress()); native_onHostNameResolved(hostName, address, resolvedDomain.getAddress());
} else { } else {
ResolveHostByNameTask task = resolvingHostnameTasks.get(hostName); ResolveHostByNameTask task = resolvingHostnameTasks.get(hostName);
@ -1060,10 +1060,9 @@ public class ConnectionsManager extends BaseController {
InputStream httpConnectionStream = null; InputStream httpConnectionStream = null;
boolean done = false; boolean done = false;
try { try {
URL downloadUrl = new URL("https://www.google.com/resolve?name=" + currentHostName + "&type=A"); URL downloadUrl = new URL("https://dns.google.com/resolve?name=" + currentHostName + "&type=A");
URLConnection httpConnection = downloadUrl.openConnection(); URLConnection httpConnection = downloadUrl.openConnection();
httpConnection.addRequestProperty("User-Agent", "Mozilla/5.0 (iPhone; CPU iPhone OS 10_0 like Mac OS X) AppleWebKit/602.1.38 (KHTML, like Gecko) Version/10.0 Mobile/14A5297c Safari/602.1"); httpConnection.addRequestProperty("User-Agent", "Mozilla/5.0 (iPhone; CPU iPhone OS 10_0 like Mac OS X) AppleWebKit/602.1.38 (KHTML, like Gecko) Version/10.0 Mobile/14A5297c Safari/602.1");
httpConnection.addRequestProperty("Host", "dns.google.com");
httpConnection.setConnectTimeout(1000); httpConnection.setConnectTimeout(1000);
httpConnection.setReadTimeout(2000); httpConnection.setReadTimeout(2000);
httpConnection.connect(); httpConnection.connect();