2 * ============LICENSE_START=======================================================
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4 * ================================================================================
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5 * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
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6 * Copyright © 2017 Amdocs
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7 * ================================================================================
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8 * Licensed under the Apache License, Version 2.0 (the "License");
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9 * you may not use this file except in compliance with the License.
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10 * You may obtain a copy of the License at
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12 * http://www.apache.org/licenses/LICENSE-2.0
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14 * Unless required by applicable law or agreed to in writing, software
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15 * distributed under the License is distributed on an "AS IS" BASIS,
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16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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17 * See the License for the specific language governing permissions and
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18 * limitations under the License.
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19 * ============LICENSE_END=========================================================
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21 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
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23 package org.onap.aai.restclient.rest;
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25 import java.io.FileInputStream;
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26 import java.security.KeyStore;
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27 import java.security.cert.X509Certificate;
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29 import javax.net.ssl.HostnameVerifier;
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30 import javax.net.ssl.KeyManagerFactory;
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31 import javax.net.ssl.SSLContext;
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32 import javax.net.ssl.SSLSession;
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33 import javax.net.ssl.TrustManager;
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34 import javax.net.ssl.X509TrustManager;
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36 import org.onap.aai.restclient.enums.RestAuthenticationMode;
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38 import com.sun.jersey.api.client.Client;
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39 import com.sun.jersey.api.client.config.ClientConfig;
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40 import com.sun.jersey.api.client.config.DefaultClientConfig;
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41 import com.sun.jersey.client.urlconnection.HTTPSProperties;
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44 * This is a generic REST Client builder with flexible security validation. Sometimes it's nice to
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45 * be able to disable server chain cert validation and hostname validation to work-around lab
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46 * issues, but at the same time be able to provide complete validation with client cert + hostname +
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47 * server cert chain validation. I used the ModelLoader REST client as a base and merged in the TSUI
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48 * client I wrote which also validates the server hostname and server certificate chain.
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50 public class RestClientBuilder {
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52 public static final boolean DEFAULT_VALIDATE_SERVER_HOST = false;
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53 public static final boolean DEFAULT_VALIDATE_CERT_CHAIN = false;
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54 public static final String DEFAULT_CLIENT_CERT_FILENAME = null;
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55 public static final String DEFAULT_CERT_PASSWORD = null;
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56 public static final String DEFAULT_TRUST_STORE_FILENAME = null;
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57 public static final int DEFAULT_CONNECT_TIMEOUT_MS = 60000;
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58 public static final int DEFAULT_READ_TIMEOUT_MS = 60000;
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59 public static final RestAuthenticationMode DEFAULT_AUTH_MODE = RestAuthenticationMode.SSL_CERT;
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60 public static final String DEFAULT_BASIC_AUTH_USERNAME = "";
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61 public static final String DEFAULT_BASIC_AUTH_PASSWORD = "";
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63 private static final String SSL_PROTOCOL = "TLS";
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64 private static final String KEYSTORE_ALGORITHM = "SunX509";
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65 private static final String KEYSTORE_TYPE = "PKCS12";
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66 private static final String TRUST_STORE_PROPERTY = "javax.net.ssl.trustStore";
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68 private boolean validateServerHostname;
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69 private boolean validateServerCertChain;
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70 private String clientCertFileName;
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71 private String clientCertPassword;
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72 private String truststoreFilename;
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73 private int connectTimeoutInMs;
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74 private int readTimeoutInMs;
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75 private RestAuthenticationMode authenticationMode;
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76 private String basicAuthUsername;
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77 private String basicAuthPassword;
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80 * Rest Client Builder.
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82 public RestClientBuilder() {
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83 validateServerHostname = DEFAULT_VALIDATE_SERVER_HOST;
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84 validateServerCertChain = DEFAULT_VALIDATE_CERT_CHAIN;
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85 clientCertFileName = DEFAULT_CLIENT_CERT_FILENAME;
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86 clientCertPassword = DEFAULT_CERT_PASSWORD;
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87 truststoreFilename = DEFAULT_TRUST_STORE_FILENAME;
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88 connectTimeoutInMs = DEFAULT_CONNECT_TIMEOUT_MS;
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89 readTimeoutInMs = DEFAULT_READ_TIMEOUT_MS;
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90 authenticationMode = DEFAULT_AUTH_MODE;
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91 basicAuthUsername = DEFAULT_BASIC_AUTH_USERNAME;
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92 basicAuthPassword = DEFAULT_BASIC_AUTH_PASSWORD;
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95 public boolean isValidateServerHostname() {
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96 return validateServerHostname;
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99 public void setValidateServerHostname(boolean validateServerHostname) {
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100 this.validateServerHostname = validateServerHostname;
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103 public boolean isValidateServerCertChain() {
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104 return validateServerCertChain;
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107 public void setValidateServerCertChain(boolean validateServerCertChain) {
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108 this.validateServerCertChain = validateServerCertChain;
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111 public String getClientCertFileName() {
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112 return clientCertFileName;
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115 public void setClientCertFileName(String clientCertFileName) {
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116 this.clientCertFileName = clientCertFileName;
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119 public String getClientCertPassword() {
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120 return clientCertPassword;
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123 public void setClientCertPassword(String clientCertPassword) {
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124 this.clientCertPassword = clientCertPassword;
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127 public String getTruststoreFilename() {
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128 return truststoreFilename;
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131 public void setTruststoreFilename(String truststoreFilename) {
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132 this.truststoreFilename = truststoreFilename;
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135 public int getConnectTimeoutInMs() {
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136 return connectTimeoutInMs;
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139 public void setConnectTimeoutInMs(int connectTimeoutInMs) {
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140 this.connectTimeoutInMs = connectTimeoutInMs;
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143 public int getReadTimeoutInMs() {
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144 return readTimeoutInMs;
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147 public void setReadTimeoutInMs(int readTimeoutInMs) {
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148 this.readTimeoutInMs = readTimeoutInMs;
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153 public RestAuthenticationMode getAuthenticationMode() {
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154 return authenticationMode;
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157 public void setAuthenticationMode(RestAuthenticationMode authenticationMode) {
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158 this.authenticationMode = authenticationMode;
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161 public String getBasicAuthUsername() {
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162 return basicAuthUsername;
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165 public void setBasicAuthUsername(String basicAuthUsername) {
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166 this.basicAuthUsername = basicAuthUsername;
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169 public String getBasicAuthPassword() {
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170 return basicAuthPassword;
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173 public void setBasicAuthPassword(String basicAuthPassword) {
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174 this.basicAuthPassword = basicAuthPassword;
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178 * Returns Client configured for SSL
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180 public Client getClient() throws Exception {
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182 switch (authenticationMode) {
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185 return getClient(true);
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188 // return basic non-authenticating HTTP client
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189 return getClient(false);
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194 protected void setupSecureSocketLayerClientConfig(ClientConfig clientConfig) throws Exception {
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195 // Check to see if we need to perform proper validation of
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196 // the certificate chains.
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197 TrustManager[] trustAllCerts = null;
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198 if (validateServerCertChain) {
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199 if (truststoreFilename != null) {
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200 System.setProperty(TRUST_STORE_PROPERTY, truststoreFilename);
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202 throw new IllegalArgumentException("Trust store filename must be set!");
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207 // We aren't validating certificates, so create a trust manager that does
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208 // not validate certificate chains.
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209 trustAllCerts = new TrustManager[] {new X509TrustManager() {
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210 public X509Certificate[] getAcceptedIssuers() {
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214 public void checkClientTrusted(X509Certificate[] certs, String authType) {}
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216 public void checkServerTrusted(X509Certificate[] certs, String authType) {}
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220 // Set up the SSL context, keystore, etc. to use for our connection
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222 SSLContext ctx = SSLContext.getInstance(SSL_PROTOCOL);
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223 KeyManagerFactory kmf = KeyManagerFactory.getInstance(KEYSTORE_ALGORITHM);
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224 KeyStore ks = KeyStore.getInstance(KEYSTORE_TYPE);
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227 if (clientCertPassword != null) {
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228 pwd = clientCertPassword.toCharArray();
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231 if (clientCertFileName != null) {
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232 FileInputStream fin = new FileInputStream(clientCertFileName);
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234 // Load the keystore and initialize the key manager factory.
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238 ctx.init(kmf.getKeyManagers(), trustAllCerts, null);
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240 ctx.init(null, trustAllCerts, null);
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243 // Are we performing validation of the server host name?
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244 if (validateServerHostname) {
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245 clientConfig.getProperties().put(HTTPSProperties.PROPERTY_HTTPS_PROPERTIES,
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246 new HTTPSProperties(null, ctx));
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249 clientConfig.getProperties().put(HTTPSProperties.PROPERTY_HTTPS_PROPERTIES,
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250 new HTTPSProperties(new HostnameVerifier() {
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252 public boolean verify(String str, SSLSession sslSession) {
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261 * Returns client instance
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263 * @param useSsl - used to configure the client with an ssl-context or just plain http
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265 protected Client getClient(boolean useSsl) throws Exception {
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267 ClientConfig clientConfig = new DefaultClientConfig();
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270 setupSecureSocketLayerClientConfig(clientConfig);
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273 // Finally, create and initialize our client...
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274 Client client = null;
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275 client = Client.create(clientConfig);
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276 client.setConnectTimeout(connectTimeoutInMs);
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277 client.setReadTimeout(readTimeoutInMs);
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279 // ...and return it to the caller.
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283 public String getBasicAuthenticationCredentials() {
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285 String usernameAndPassword = getBasicAuthUsername() + ":" + getBasicAuthPassword();
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286 return "Basic " + java.util.Base64.getEncoder().encodeToString(usernameAndPassword.getBytes());
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290 * Added a little bit of logic to obfuscate passwords that could be logged out
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292 * @see java.lang.Object#toString()
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295 public String toString() {
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296 return "RestClientBuilder [validateServerHostname=" + validateServerHostname
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297 + ", validateServerCertChain=" + validateServerCertChain + ", "
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298 + (clientCertFileName != null ? "clientCertFileName=" + clientCertFileName + ", " : "")
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299 + (clientCertPassword != null
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300 ? "clientCertPassword="
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301 + java.util.Base64.getEncoder().encodeToString(clientCertPassword.getBytes()) + ", "
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303 + (truststoreFilename != null ? "truststoreFilename=" + truststoreFilename + ", " : "")
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304 + "connectTimeoutInMs=" + connectTimeoutInMs + ", readTimeoutInMs=" + readTimeoutInMs + ", "
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305 + (authenticationMode != null ? "authenticationMode=" + authenticationMode + ", " : "")
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306 + (basicAuthUsername != null ? "basicAuthUsername=" + basicAuthUsername + ", " : "")
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307 + (basicAuthPassword != null ? "basicAuthPassword="
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308 + java.util.Base64.getEncoder().encodeToString(basicAuthPassword.getBytes()) : "")
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