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/*
* Copyright 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.conscrypt;
import static java.nio.file.attribute.PosixFilePermission.GROUP_EXECUTE;
import static java.nio.file.attribute.PosixFilePermission.OTHERS_EXECUTE;
import static java.nio.file.attribute.PosixFilePermission.OWNER_EXECUTE;
import java.io.File;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.file.attribute.PosixFilePermission;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.EnumSet;
import java.util.Set;
import javax.net.ssl.SSLParameters;
import javax.net.ssl.SSLSession;
import javax.net.ssl.X509ExtendedTrustManager;
import javax.net.ssl.X509TrustManager;
/**
* Utility methods supported on Java 7+.
*/
final class Java7PlatformUtil {
static String getHostStringFromInetSocketAddress(InetSocketAddress addr) {
return addr.getHostString();
}
static void checkClientTrusted(X509TrustManager tm, X509Certificate[] chain, String authType,
AbstractConscryptSocket socket) throws CertificateException {
if (tm instanceof X509ExtendedTrustManager) {
X509ExtendedTrustManager x509etm = (X509ExtendedTrustManager) tm;
x509etm.checkClientTrusted(chain, authType, socket);
} else {
tm.checkClientTrusted(chain, authType);
}
}
static void checkServerTrusted(X509TrustManager tm, X509Certificate[] chain, String authType,
AbstractConscryptSocket socket) throws CertificateException {
if (tm instanceof X509ExtendedTrustManager) {
X509ExtendedTrustManager x509etm = (X509ExtendedTrustManager) tm;
x509etm.checkServerTrusted(chain, authType, socket);
} else {
tm.checkServerTrusted(chain, authType);
}
}
static void checkClientTrusted(X509TrustManager tm, X509Certificate[] chain, String authType,
ConscryptEngine engine) throws CertificateException {
if (tm instanceof X509ExtendedTrustManager) {
X509ExtendedTrustManager x509etm = (X509ExtendedTrustManager) tm;
x509etm.checkClientTrusted(chain, authType, engine);
} else {
tm.checkClientTrusted(chain, authType);
}
}
static void checkServerTrusted(X509TrustManager tm, X509Certificate[] chain, String authType,
ConscryptEngine engine) throws CertificateException {
if (tm instanceof X509ExtendedTrustManager) {
X509ExtendedTrustManager x509etm = (X509ExtendedTrustManager) tm;
x509etm.checkServerTrusted(chain, authType, engine);
} else {
tm.checkServerTrusted(chain, authType);
}
}
static void setSSLParameters(SSLParameters params, SSLParametersImpl impl) {
impl.setEndpointIdentificationAlgorithm(params.getEndpointIdentificationAlgorithm());
}
static void getSSLParameters(SSLParameters params, SSLParametersImpl impl) {
params.setEndpointIdentificationAlgorithm(impl.getEndpointIdentificationAlgorithm());
}
static void addSuppressed(Throwable t, Throwable suppressed) {
t.addSuppressed(suppressed);
}
static boolean canExecuteExecutable(File file) throws IOException {
// If we can already execute, there is nothing to do.
if (file.canExecute()) {
return true;
}
// On volumes, with noexec set, even files with the executable POSIX permissions will
// fail to execute. The File#canExecute() method honors this behavior, probaby via
// parsing the noexec flag when initializing the UnixFileStore, though the flag is not
// exposed via a public API. To find out if library is being loaded off a volume with
// noexec, confirm or add executalbe permissions, then check File#canExecute().
// Note: We use FQCN to not break when used in java6
Set existingFilePermissions =
java.nio.file.Files.getPosixFilePermissions(file.toPath());
Set executePermissions =
EnumSet.of(OWNER_EXECUTE, GROUP_EXECUTE, OTHERS_EXECUTE);
if (existingFilePermissions.containsAll(executePermissions)) {
return false;
}
Set newPermissions =
EnumSet.copyOf(existingFilePermissions);
newPermissions.addAll(executePermissions);
java.nio.file.Files.setPosixFilePermissions(file.toPath(), newPermissions);
return file.canExecute();
}
static SSLSession wrapSSLSession(ExternalSession sslSession) {
return new Java7ExtendedSSLSession(sslSession);
}
private Java7PlatformUtil() {}
}
