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Bug 952799 - GeckoAppShell.getProxyForURI can be expensive during a pageload. r=mfinkle

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This commit is contained in:
Richard Newman 2013-12-23 11:09:25 -08:00
parent 6dbf20feee
commit 5fa00edc9a
1 changed files with 79 additions and 33 deletions
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112
mobile/android/base/GeckoAppShell.java
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@ -68,6 +68,7 @@ import android.os.MessageQueue;
import android.os.SystemClock;
import android.os.Vibrator;
import android.provider.Settings;
import android.support.v4.util.LruCache;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.util.Base64;
@ -2662,44 +2663,89 @@ public class GeckoAppShell
return false;
}
// Holds mappings from hostnames to URIs.
// We only use this for HTTP and HTTPS on default ports (-1), because it's
// simpler to do so while addressing most uses.
private static LruCache<String, URI> httpURIs = new LruCache<String, URI>(10);
private static LruCache<String, URI> httpsURIs = new LruCache<String, URI>(10);
private static URI getAndCacheURIByParts(String scheme, String host, LruCache<String, URI> cache) {
URI uri = cache.get(host);
if (uri != null) {
return uri;
}
try {
uri = new URI(scheme, null, host, -1, null, null, null);
} catch (java.net.URISyntaxException uriEx) {
Log.d("GeckoProxy", "Failed to create URI from parts.", uriEx);
return null;
}
cache.put(host, uri);
return uri;
}
private static URI getURIByParts(String scheme, String host, int port) {
if (port == -1) {
if (scheme.equals("http")) {
return getAndCacheURIByParts("http", host, httpURIs);
} else if (scheme.equals("https")) {
return getAndCacheURIByParts("https", host, httpsURIs);
}
}
try {
return new URI(scheme, null, host, port, null, null, null);
} catch (java.net.URISyntaxException uriEx) {
Log.d("GeckoProxy", "Failed to create URI from parts.", uriEx);
}
return null;
}
@WrapElementForJNI(stubName = "GetProxyForURIWrapper")
public static String getProxyForURI(String spec, String scheme, String host, int port) {
URI uri = null;
final ProxySelector ps;
try {
uri = new URI(spec);
} catch(java.net.URISyntaxException uriEx) {
try {
uri = new URI(scheme, null, host, port, null, null, null);
} catch(java.net.URISyntaxException uriEx2) {
Log.d("GeckoProxy", "Failed to create uri from spec", uriEx);
Log.d("GeckoProxy", "Failed to create uri from parts", uriEx2);
}
// This is cheap -- just a SecurityManager check and a static
// access inside ProxySelector.
ps = ProxySelector.getDefault();
} catch (SecurityException ex) {
Log.w(LOGTAG, "Not allowed to use default ProxySelector.");
return "DIRECT";
}
if (uri != null) {
ProxySelector ps = ProxySelector.getDefault();
if (ps != null) {
List<Proxy> proxies = ps.select(uri);
if (proxies != null && !proxies.isEmpty()) {
Proxy proxy = proxies.get(0);
if (!Proxy.NO_PROXY.equals(proxy)) {
final String proxyStr;
switch (proxy.type()) {
case HTTP:
proxyStr = "PROXY " + proxy.address().toString();
break;
case SOCKS:
proxyStr = "SOCKS " + proxy.address().toString();
break;
case DIRECT:
default:
proxyStr = "DIRECT";
break;
}
return proxyStr;
}
}
}
if (ps == null) {
return "DIRECT";
}
// We don't use the whole spec because parsing a URI from a string
// is expensive, and the stock Android proxy behavior looks only at
// the scheme and host.
URI uri = getURIByParts(scheme, host, port);
if (uri == null) {
return "DIRECT";
}
List<Proxy> proxies = ps.select(uri);
if (proxies == null || proxies.isEmpty()) {
return "DIRECT";
}
Proxy proxy = proxies.get(0);
if (Proxy.NO_PROXY.equals(proxy)) {
return "DIRECT";
}
switch (proxy.type()) {
case HTTP:
return "PROXY " + proxy.address().toString();
case SOCKS:
return "SOCKS " + proxy.address().toString();
}
return "DIRECT";
}
}