org.hyperledger.fabric.sdk.Endpoint Maven / Gradle / Ivy
/*
* Copyright 2016,2017 DTCC, Fujitsu Australia Software Technology, IBM - All Rights Reserved.
*
* 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.hyperledger.fabric.sdk;
import com.google.common.collect.ImmutableMap;
import io.grpc.ManagedChannelBuilder;
import io.grpc.netty.GrpcSslContexts;
import io.grpc.netty.NegotiationType;
import io.grpc.netty.NettyChannelBuilder;
import io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.SslProvider;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.bouncycastle.asn1.x500.RDN;
import org.bouncycastle.asn1.x500.X500Name;
import org.bouncycastle.asn1.x500.style.BCStyle;
import org.bouncycastle.asn1.x500.style.IETFUtils;
import org.bouncycastle.cert.jcajce.JcaX509CertificateHolder;
import org.hyperledger.fabric.sdk.helper.Utils;
import org.hyperledger.fabric.sdk.security.CryptoPrimitives;
import javax.net.ssl.SSLException;
import java.io.File;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.security.cert.X509Certificate;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static org.hyperledger.fabric.sdk.helper.Utils.parseGrpcUrl;
class Endpoint {
private static final Log logger = LogFactory.getLog(Endpoint.class);
private final String addr;
private final int port;
private final String url;
private NettyChannelBuilder channelBuilder = null;
private static final Map CN_CACHE = Collections.synchronizedMap(new HashMap<>());
private final int maxMessageSize = 100 * 1024 * 1024;
Endpoint(String url, Properties properties) {
logger.trace(String.format("Creating endpoint for url %s", url));
this.url = url;
String pem = null;
String cn = null;
String sslp = null;
String nt = null;
Properties purl = parseGrpcUrl(url);
String protocol = purl.getProperty("protocol");
this.addr = purl.getProperty("host");
this.port = Integer.parseInt(purl.getProperty("port"));
if (properties != null) {
if ("grpcs".equals(protocol)) {
try {
pem = properties.getProperty("pemFile");
cn = properties.getProperty("hostnameOverride");
if (cn == null && "true".equals(properties.getProperty("trustServerCertificate"))) {
File pemF = new File(pem);
final String cnKey = pemF.getAbsolutePath() + pemF.length() + pemF.lastModified();
cn = CN_CACHE.get(cnKey);
if (cn == null) {
Path path = Paths.get(pem);
byte[] data = Files.readAllBytes(path);
CryptoPrimitives cp = new CryptoPrimitives();
X500Name x500name = new JcaX509CertificateHolder((X509Certificate) cp.bytesToCertificate(data)).getSubject();
RDN rdn = x500name.getRDNs(BCStyle.CN)[0];
cn = IETFUtils.valueToString(rdn.getFirst().getValue());
CN_CACHE.put(cnKey, cn);
}
}
} catch (Exception e) {
/// Mostly a development env. just log it.
logger.error("Error getting Subject CN from certificate. Try setting it specifically with hostnameOverride property. " + e.getMessage());
}
sslp = properties.getProperty("sslProvider");
if (sslp == null) {
throw new RuntimeException("Property of sslProvider expected");
}
if (!sslp.equals("openSSL") && !sslp.equals("JDK")) {
throw new RuntimeException("Property of sslProvider has to be either openSSL or JDK");
}
nt = properties.getProperty("negotiationType");
if (nt == null) {
throw new RuntimeException("Property of negotiationType expected");
}
if (!nt.equals("TLS") && !nt.equals("plainText")) {
throw new RuntimeException("Property of negotiationType has to be either TLS or plainText");
}
}
}
try {
if (protocol.equalsIgnoreCase("grpc")) {
this.channelBuilder = NettyChannelBuilder.forAddress(addr, port)
.usePlaintext(true).maxInboundMessageSize(maxMessageSize);
addNettyBuilderProps(channelBuilder, properties);
} else if (protocol.equalsIgnoreCase("grpcs")) {
if (Utils.isNullOrEmpty(pem)) {
// use root certificate
this.channelBuilder = NettyChannelBuilder.forAddress(addr, port)
.maxInboundMessageSize(maxMessageSize);
addNettyBuilderProps(channelBuilder, properties);
} else {
try {
SslProvider sslprovider = sslp.equals("openSSL") ? SslProvider.OPENSSL : SslProvider.JDK;
NegotiationType ntype = nt.equals("TLS") ? NegotiationType.TLS : NegotiationType.PLAINTEXT;
SslContext sslContext = GrpcSslContexts.forClient()
.trustManager(new File(pem))
.sslProvider(sslprovider)
.build();
this.channelBuilder = NettyChannelBuilder.forAddress(addr, port)
.sslContext(sslContext)
.negotiationType(ntype)
.maxInboundMessageSize(maxMessageSize);
if (cn != null) {
channelBuilder.overrideAuthority(cn);
}
addNettyBuilderProps(channelBuilder, properties);
} catch (SSLException sslex) {
throw new RuntimeException(sslex);
}
}
} else {
throw new RuntimeException("invalid protocol: " + protocol);
}
} catch (RuntimeException e) {
logger.error(e);
throw e;
} catch (Exception e) {
logger.error(e);
throw new RuntimeException(e);
}
}
private static final Pattern METHOD_PATTERN = Pattern.compile("grpc\\.NettyChannelBuilderOption\\.([^.]*)$");
private static final Map, Class> WRAPPERS_TO_PRIM
= new ImmutableMap.Builder, Class>()
.put(Boolean.class, boolean.class)
.put(Byte.class, byte.class)
.put(Character.class, char.class)
.put(Double.class, double.class)
.put(Float.class, float.class)
.put(Integer.class, int.class)
.put(Long.class, long.class)
.put(Short.class, short.class)
.put(Void.class, void.class)
.build();
private void addNettyBuilderProps(NettyChannelBuilder channelBuilder, Properties props) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
if (props == null) {
return;
}
for (Map.Entry es : props.entrySet()) {
Object methodprop = es.getKey();
if (methodprop == null) {
continue;
}
String methodprops = String.valueOf(methodprop);
Matcher match = METHOD_PATTERN.matcher(methodprops);
String methodName = null;
if (match.matches() && match.groupCount() == 1) {
methodName = match.group(1).trim();
}
if (null == methodName || "forAddress".equals(methodName) || "build".equals(methodName)) {
continue;
}
Object parmsArrayO = es.getValue();
Object[] parmsArray;
if (!(parmsArrayO instanceof Object[])) {
parmsArray = new Object[] {parmsArrayO};
} else {
parmsArray = (Object[]) parmsArrayO;
}
Class[] classParms = new Class[parmsArray.length];
int i = -1;
for (Object oparm : parmsArray) {
++i;
if (null == oparm) {
classParms[i] = Object.class;
continue;
}
Class unwrapped = WRAPPERS_TO_PRIM.get(oparm.getClass());
if (null != unwrapped) {
classParms[i] = unwrapped;
} else {
Class clz = oparm.getClass();
Class ecz = clz.getEnclosingClass();
if (null != ecz && ecz.isEnum()) {
clz = ecz;
}
classParms[i] = clz;
}
}
final Method method = channelBuilder.getClass().getMethod(methodName, classParms);
method.invoke(channelBuilder, parmsArray);
if (logger.isTraceEnabled()) {
StringBuilder sb = new StringBuilder(200);
String sep = "";
for (Object p : parmsArray) {
sb.append(sep).append(p + "");
sep = ", ";
}
logger.trace(String.format("Endpoint with url: %s set managed channel builder method %s (%s) ", url, method, sb.toString()));
}
}
}
ManagedChannelBuilder getChannelBuilder() {
return this.channelBuilder;
}
String getHost() {
return this.addr;
}
int getPort() {
return this.port;
}
}
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