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Adapt to API changes in Conscrypt 1.0.0.RC11

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Motivation:

In google/conscrypt#313 the Conscrypt.Engines class was removed in favor
of methods directly on Conscrypt and overloading. The Conscrypt-using
code in Netty used reflection to access the old API, that doesn't exist
anymore. And thus recent versions of Conscrypt fail to enable things
like ALPN with Netty.

Modifications:

Instead of calling Conscrypt.Engines.isConscrypt, call
Conscrypt.isConscrypt.

Result:

Conscrypt detected properly at runtime.
This commit is contained in:
Eric Anderson 2018-02-01 16:48:09 -08:00 committed by Norman Maurer
parent 5257ec49ec
commit 2923f33530
1 changed files with 11 additions and 12 deletions
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23
handler/src/main/java/io/netty/handler/ssl/Conscrypt.java
View File

@ -26,44 +26,43 @@ import java.lang.reflect.Method;
final class Conscrypt {
// This class exists to avoid loading other conscrypt related classes using features only available in JDK8+,
// because we need to maintain JDK6+ runtime compatibility.
private static final Class<?> ENGINES_CLASS = getEnginesClass();
private static final Class<?> CONSCRYPT_CLASS = getConscryptClass();
/**
* Indicates whether or not conscrypt is available on the current system.
*/
static boolean isAvailable() {
return ENGINES_CLASS != null && PlatformDependent.javaVersion() >= 8;
return CONSCRYPT_CLASS != null && PlatformDependent.javaVersion() >= 8;
}
static boolean isEngineSupported(SSLEngine engine) {
return isAvailable() && isConscryptEngine(engine, ENGINES_CLASS);
return isAvailable() && isConscryptEngine(engine, CONSCRYPT_CLASS);
}
private static Class<?> getEnginesClass() {
private static Class<?> getConscryptClass() {
try {
// Always use bootstrap class loader.
Class<?> engineClass = Class.forName("org.conscrypt.Conscrypt$Engines", true,
Class<?> conscryptClass = Class.forName("org.conscrypt.Conscrypt", true,
ConscryptAlpnSslEngine.class.getClassLoader());
// Ensure that it also has the isConscrypt method.
getIsConscryptMethod(engineClass);
return engineClass;
getIsConscryptMethod(conscryptClass);
return conscryptClass;
} catch (Throwable ignore) {
// Conscrypt was not loaded.
return null;
}
}
private static boolean isConscryptEngine(SSLEngine engine, Class<?> enginesClass) {
private static boolean isConscryptEngine(SSLEngine engine, Class<?> conscryptClass) {
try {
Method method = getIsConscryptMethod(enginesClass);
Method method = getIsConscryptMethod(conscryptClass);
return (Boolean) method.invoke(null, engine);
} catch (Throwable ignore) {
return false;
}
}
private static Method getIsConscryptMethod(Class<?> enginesClass) throws NoSuchMethodException {
return enginesClass.getMethod("isConscrypt", SSLEngine.class);
private static Method getIsConscryptMethod(Class<?> conscryptClass) throws NoSuchMethodException {
return conscryptClass.getMethod("isConscrypt", SSLEngine.class);
}
private Conscrypt() { }