com.azure.identity.implementation.IdentityClient Maven / Gradle / Ivy
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
package com.azure.identity.implementation;
import com.azure.core.credential.AccessToken;
import com.azure.core.credential.TokenRequestContext;
import com.azure.core.exception.ClientAuthenticationException;
import com.azure.core.http.HttpClient;
import com.azure.core.http.HttpPipeline;
import com.azure.core.http.HttpPipelineBuilder;
import com.azure.core.http.ProxyOptions;
import com.azure.core.http.policy.HttpLogOptions;
import com.azure.core.http.policy.HttpLoggingPolicy;
import com.azure.core.http.policy.HttpPipelinePolicy;
import com.azure.core.http.policy.HttpPolicyProviders;
import com.azure.core.http.policy.RetryPolicy;
import com.azure.core.util.CoreUtils;
import com.azure.core.util.logging.ClientLogger;
import com.azure.core.util.serializer.JacksonAdapter;
import com.azure.core.util.serializer.SerializerAdapter;
import com.azure.core.util.serializer.SerializerEncoding;
import com.azure.identity.CredentialUnavailableException;
import com.azure.identity.DeviceCodeInfo;
import com.azure.identity.TokenCachePersistenceOptions;
import com.azure.identity.implementation.util.CertificateUtil;
import com.azure.identity.implementation.util.IdentitySslUtil;
import com.azure.identity.implementation.util.ScopeUtil;
import com.fasterxml.jackson.databind.JsonNode;
import com.microsoft.aad.msal4j.AuthorizationCodeParameters;
import com.microsoft.aad.msal4j.ClaimsRequest;
import com.microsoft.aad.msal4j.ClientCredentialFactory;
import com.microsoft.aad.msal4j.ClientCredentialParameters;
import com.microsoft.aad.msal4j.ConfidentialClientApplication;
import com.microsoft.aad.msal4j.DeviceCodeFlowParameters;
import com.microsoft.aad.msal4j.IAccount;
import com.microsoft.aad.msal4j.IAuthenticationResult;
import com.microsoft.aad.msal4j.IClientCredential;
import com.microsoft.aad.msal4j.InteractiveRequestParameters;
import com.microsoft.aad.msal4j.PublicClientApplication;
import com.microsoft.aad.msal4j.Prompt;
import com.microsoft.aad.msal4j.RefreshTokenParameters;
import com.microsoft.aad.msal4j.SilentParameters;
import com.microsoft.aad.msal4j.UserNamePasswordParameters;
import com.sun.jna.Platform;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import javax.net.ssl.HttpsURLConnection;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.Proxy;
import java.net.Proxy.Type;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.security.GeneralSecurityException;
import java.security.PrivateKey;
import java.security.cert.X509Certificate;
import java.time.Duration;
import java.time.LocalDateTime;
import java.time.OffsetDateTime;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.time.format.DateTimeFormatter;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Random;
import java.util.Scanner;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;
/**
* The identity client that contains APIs to retrieve access tokens
* from various configurations.
*/
public class IdentityClient {
private static final SerializerAdapter SERIALIZER_ADAPTER = JacksonAdapter.createDefaultSerializerAdapter();
private static final Random RANDOM = new Random();
private static final String WINDOWS_STARTER = "cmd.exe";
private static final String LINUX_MAC_STARTER = "/bin/sh";
private static final String WINDOWS_SWITCHER = "/c";
private static final String LINUX_MAC_SWITCHER = "-c";
private static final String WINDOWS_PROCESS_ERROR_MESSAGE = "'az' is not recognized";
private static final String LINUX_MAC_PROCESS_ERROR_MESSAGE = "(.*)az:(.*)not found";
private static final String DEFAULT_WINDOWS_SYSTEM_ROOT = System.getenv("SystemRoot");
private static final String DEFAULT_WINDOWS_PS_EXECUTABLE = "pwsh.exe";
private static final String LEGACY_WINDOWS_PS_EXECUTABLE = "powershell.exe";
private static final String DEFAULT_LINUX_PS_EXECUTABLE = "pwsh";
private static final String DEFAULT_MAC_LINUX_PATH = "/bin/";
private static final Duration REFRESH_OFFSET = Duration.ofMinutes(5);
private static final String IDENTITY_ENDPOINT_VERSION = "2019-08-01";
private static final String MSI_ENDPOINT_VERSION = "2017-09-01";
private static final String ADFS_TENANT = "adfs";
private static final String HTTP_LOCALHOST = "http://localhost";
private static final String SERVICE_FABRIC_MANAGED_IDENTITY_API_VERSION = "2019-07-01-preview";
private final ClientLogger logger = new ClientLogger(IdentityClient.class);
private final IdentityClientOptions options;
private final String tenantId;
private final String clientId;
private final String clientSecret;
private final InputStream certificate;
private final String certificatePath;
private final String certificatePassword;
private HttpPipelineAdapter httpPipelineAdapter;
private final SynchronizedAccessor publicClientApplicationAccessor;
private final SynchronizedAccessor confidentialClientApplicationAccessor;
/**
* Creates an IdentityClient with the given options.
*
* @param tenantId the tenant ID of the application.
* @param clientId the client ID of the application.
* @param clientSecret the client secret of the application.
* @param certificatePath the path to the PKCS12 or PEM certificate of the application.
* @param certificate the PKCS12 or PEM certificate of the application.
* @param certificatePassword the password protecting the PFX certificate.
* @param isSharedTokenCacheCredential Indicate whether the credential is
* {@link com.azure.identity.SharedTokenCacheCredential} or not.
* @param options the options configuring the client.
*/
IdentityClient(String tenantId, String clientId, String clientSecret, String certificatePath,
InputStream certificate, String certificatePassword, boolean isSharedTokenCacheCredential,
IdentityClientOptions options) {
if (tenantId == null) {
tenantId = "organizations";
}
if (options == null) {
options = new IdentityClientOptions();
}
this.tenantId = tenantId;
this.clientId = clientId;
this.clientSecret = clientSecret;
this.certificatePath = certificatePath;
this.certificate = certificate;
this.certificatePassword = certificatePassword;
this.options = options;
this.publicClientApplicationAccessor = new SynchronizedAccessor(() ->
getPublicClientApplication(isSharedTokenCacheCredential));
this.confidentialClientApplicationAccessor = new SynchronizedAccessor(() ->
getConfidentialClientApplication());
}
private Mono getConfidentialClientApplication() {
return Mono.defer(() -> {
if (clientId == null) {
return Mono.error(logger.logExceptionAsError(new IllegalArgumentException(
"A non-null value for client ID must be provided for user authentication.")));
}
String authorityUrl = options.getAuthorityHost().replaceAll("/+$", "") + "/" + tenantId;
IClientCredential credential;
if (clientSecret != null) {
credential = ClientCredentialFactory.createFromSecret(clientSecret);
} else if (certificate != null || certificatePath != null) {
try {
if (certificatePassword == null) {
byte[] pemCertificateBytes = getCertificateBytes();
List x509CertificateList = CertificateUtil.publicKeyFromPem(pemCertificateBytes);
PrivateKey privateKey = CertificateUtil.privateKeyFromPem(pemCertificateBytes);
if (x509CertificateList.size() == 1) {
credential = ClientCredentialFactory.createFromCertificate(
privateKey, x509CertificateList.get(0));
} else {
credential = ClientCredentialFactory.createFromCertificateChain(
privateKey, x509CertificateList);
}
} else {
InputStream pfxCertificateStream = getCertificateInputStream();
try {
credential = ClientCredentialFactory.createFromCertificate(
pfxCertificateStream, certificatePassword);
} finally {
if (pfxCertificateStream != null) {
pfxCertificateStream.close();
}
}
}
} catch (IOException | GeneralSecurityException e) {
return Mono.error(logger.logExceptionAsError(new RuntimeException(
"Failed to parse the certificate for the credential: " + e.getMessage(), e)));
}
} else {
return Mono.error(logger.logExceptionAsError(
new IllegalArgumentException("Must provide client secret or client certificate path")));
}
ConfidentialClientApplication.Builder applicationBuilder =
ConfidentialClientApplication.builder(clientId, credential);
try {
applicationBuilder = applicationBuilder.authority(authorityUrl);
} catch (MalformedURLException e) {
return Mono.error(logger.logExceptionAsWarning(new IllegalStateException(e)));
}
applicationBuilder.sendX5c(options.isIncludeX5c());
initializeHttpPipelineAdapter();
if (httpPipelineAdapter != null) {
applicationBuilder.httpClient(httpPipelineAdapter);
} else {
applicationBuilder.proxy(proxyOptionsToJavaNetProxy(options.getProxyOptions()));
}
if (options.getExecutorService() != null) {
applicationBuilder.executorService(options.getExecutorService());
}
TokenCachePersistenceOptions tokenCachePersistenceOptions = options.getTokenCacheOptions();
PersistentTokenCacheImpl tokenCache = null;
if (tokenCachePersistenceOptions != null) {
try {
tokenCache = new PersistentTokenCacheImpl()
.setAllowUnencryptedStorage(tokenCachePersistenceOptions.isUnencryptedStorageAllowed())
.setName(tokenCachePersistenceOptions.getName());
applicationBuilder.setTokenCacheAccessAspect(tokenCache);
} catch (Throwable t) {
return Mono.error(logger.logExceptionAsError(new ClientAuthenticationException(
"Shared token cache is unavailable in this environment.", null, t)));
}
}
ConfidentialClientApplication confidentialClientApplication = applicationBuilder.build();
return tokenCache != null ? tokenCache.registerCache()
.map(ignored -> confidentialClientApplication) : Mono.just(confidentialClientApplication);
});
}
private Mono getPublicClientApplication(boolean sharedTokenCacheCredential) {
return Mono.defer(() -> {
if (clientId == null) {
throw logger.logExceptionAsError(new IllegalArgumentException(
"A non-null value for client ID must be provided for user authentication."));
}
String authorityUrl = options.getAuthorityHost().replaceAll("/+$", "") + "/" + tenantId;
PublicClientApplication.Builder publicClientApplicationBuilder = PublicClientApplication.builder(clientId);
try {
publicClientApplicationBuilder = publicClientApplicationBuilder.authority(authorityUrl);
} catch (MalformedURLException e) {
throw logger.logExceptionAsWarning(new IllegalStateException(e));
}
initializeHttpPipelineAdapter();
if (httpPipelineAdapter != null) {
publicClientApplicationBuilder.httpClient(httpPipelineAdapter);
} else {
publicClientApplicationBuilder.proxy(proxyOptionsToJavaNetProxy(options.getProxyOptions()));
}
if (options.getExecutorService() != null) {
publicClientApplicationBuilder.executorService(options.getExecutorService());
}
if (!options.isCp1Disabled()) {
Set set = new HashSet<>(1);
set.add("CP1");
publicClientApplicationBuilder.clientCapabilities(set);
}
return Mono.just(publicClientApplicationBuilder);
}).flatMap(builder -> {
TokenCachePersistenceOptions tokenCachePersistenceOptions = options.getTokenCacheOptions();
PersistentTokenCacheImpl tokenCache = null;
if (tokenCachePersistenceOptions != null) {
try {
tokenCache = new PersistentTokenCacheImpl()
.setAllowUnencryptedStorage(tokenCachePersistenceOptions.isUnencryptedStorageAllowed())
.setName(tokenCachePersistenceOptions.getName());
builder.setTokenCacheAccessAspect(tokenCache);
} catch (Throwable t) {
throw logger.logExceptionAsError(new ClientAuthenticationException(
"Shared token cache is unavailable in this environment.", null, t));
}
}
PublicClientApplication publicClientApplication = builder.build();
return tokenCache != null ? tokenCache.registerCache()
.map(ignored -> publicClientApplication) : Mono.just(publicClientApplication);
});
}
public Mono authenticateWithIntelliJ(TokenRequestContext request) {
try {
IntelliJCacheAccessor cacheAccessor = new IntelliJCacheAccessor(options.getIntelliJKeePassDatabasePath());
IntelliJAuthMethodDetails authDetails = cacheAccessor.getAuthDetailsIfAvailable();
String authType = authDetails.getAuthMethod();
if (authType.equalsIgnoreCase("SP")) {
Map spDetails = cacheAccessor
.getIntellijServicePrincipalDetails(authDetails.getCredFilePath());
String authorityUrl = spDetails.get("authURL") + spDetails.get("tenant");
try {
ConfidentialClientApplication.Builder applicationBuilder =
ConfidentialClientApplication.builder(spDetails.get("client"),
ClientCredentialFactory.createFromSecret(spDetails.get("key")))
.authority(authorityUrl);
// If http pipeline is available, then it should override the proxy options if any configured.
if (httpPipelineAdapter != null) {
applicationBuilder.httpClient(httpPipelineAdapter);
} else if (options.getProxyOptions() != null) {
applicationBuilder.proxy(proxyOptionsToJavaNetProxy(options.getProxyOptions()));
}
if (options.getExecutorService() != null) {
applicationBuilder.executorService(options.getExecutorService());
}
ConfidentialClientApplication application = applicationBuilder.build();
return Mono.fromFuture(application.acquireToken(
ClientCredentialParameters.builder(new HashSet<>(request.getScopes()))
.build())).map(MsalToken::new);
} catch (MalformedURLException e) {
return Mono.error(e);
}
} else if (authType.equalsIgnoreCase("DC")) {
if (isADFSTenant()) {
return Mono.error(new CredentialUnavailableException("IntelliJCredential "
+ "authentication unavailable. ADFS tenant/authorities are not supported."));
}
JsonNode intelliJCredentials = cacheAccessor.getDeviceCodeCredentials();
String refreshToken = intelliJCredentials.get("refreshToken").textValue();
RefreshTokenParameters.RefreshTokenParametersBuilder refreshTokenParametersBuilder =
RefreshTokenParameters.builder(new HashSet<>(request.getScopes()), refreshToken);
if (request.getClaims() != null) {
ClaimsRequest customClaimRequest = CustomClaimRequest.formatAsClaimsRequest(request.getClaims());
refreshTokenParametersBuilder.claims(customClaimRequest);
}
return publicClientApplicationAccessor.getValue()
.flatMap(pc -> Mono.fromFuture(pc.acquireToken(refreshTokenParametersBuilder.build()))
.map(MsalToken::new));
} else {
throw logger.logExceptionAsError(new CredentialUnavailableException(
"IntelliJ Authentication not available."
+ " Please login with Azure Tools for IntelliJ plugin in the IDE."));
}
} catch (IOException e) {
return Mono.error(e);
}
}
/**
* Asynchronously acquire a token from Active Directory with Azure CLI.
*
* @param request the details of the token request
* @return a Publisher that emits an AccessToken
*/
public Mono authenticateWithAzureCli(TokenRequestContext request) {
String azCommand = "az account get-access-token --output json --resource ";
StringBuilder command = new StringBuilder();
command.append(azCommand);
String scopes = ScopeUtil.scopesToResource(request.getScopes());
try {
ScopeUtil.validateScope(scopes);
} catch (IllegalArgumentException ex) {
return Mono.error(logger.logExceptionAsError(ex));
}
command.append(scopes);
AccessToken token = null;
BufferedReader reader = null;
try {
String starter;
String switcher;
if (isWindowsPlatform()) {
starter = WINDOWS_STARTER;
switcher = WINDOWS_SWITCHER;
} else {
starter = LINUX_MAC_STARTER;
switcher = LINUX_MAC_SWITCHER;
}
ProcessBuilder builder = new ProcessBuilder(starter, switcher, command.toString());
String workingDirectory = getSafeWorkingDirectory();
if (workingDirectory != null) {
builder.directory(new File(workingDirectory));
} else {
throw logger.logExceptionAsError(new IllegalStateException("A Safe Working directory could not be"
+ " found to execute CLI command from."));
}
builder.redirectErrorStream(true);
Process process = builder.start();
reader = new BufferedReader(new InputStreamReader(process.getInputStream(), "UTF-8"));
String line;
StringBuilder output = new StringBuilder();
while (true) {
line = reader.readLine();
if (line == null) {
break;
}
if (line.startsWith(WINDOWS_PROCESS_ERROR_MESSAGE) || line.matches(LINUX_MAC_PROCESS_ERROR_MESSAGE)) {
throw logger.logExceptionAsError(
new CredentialUnavailableException(
"AzureCliCredential authentication unavailable. Azure CLI not installed"));
}
output.append(line);
}
String processOutput = output.toString();
process.waitFor(10, TimeUnit.SECONDS);
if (process.exitValue() != 0) {
if (processOutput.length() > 0) {
String redactedOutput = redactInfo("\"accessToken\": \"(.*?)(\"|$)", processOutput);
if (redactedOutput.contains("az login") || redactedOutput.contains("az account set")) {
throw logger.logExceptionAsError(
new CredentialUnavailableException(
"AzureCliCredential authentication unavailable."
+ " Please run 'az login' to set up account"));
}
throw logger.logExceptionAsError(new ClientAuthenticationException(redactedOutput, null));
} else {
throw logger.logExceptionAsError(
new ClientAuthenticationException("Failed to invoke Azure CLI ", null));
}
}
Map objectMap = SERIALIZER_ADAPTER.deserialize(processOutput, Map.class,
SerializerEncoding.JSON);
String accessToken = objectMap.get("accessToken");
String time = objectMap.get("expiresOn");
String timeToSecond = time.substring(0, time.indexOf("."));
String timeJoinedWithT = String.join("T", timeToSecond.split(" "));
OffsetDateTime expiresOn = LocalDateTime.parse(timeJoinedWithT, DateTimeFormatter.ISO_LOCAL_DATE_TIME)
.atZone(ZoneId.systemDefault())
.toOffsetDateTime().withOffsetSameInstant(ZoneOffset.UTC);
token = new AccessToken(accessToken, expiresOn);
} catch (IOException | InterruptedException e) {
throw logger.logExceptionAsError(new IllegalStateException(e));
} catch (RuntimeException e) {
return Mono.error(logger.logExceptionAsError(e));
} finally {
try {
if (reader != null) {
reader.close();
}
} catch (IOException ex) {
return Mono.error(logger.logExceptionAsError(new IllegalStateException(ex)));
}
}
return Mono.just(token);
}
/**
* Asynchronously acquire a token from Active Directory with Azure Power Shell.
*
* @param request the details of the token request
* @return a Publisher that emits an AccessToken
*/
public Mono authenticateWithAzurePowerShell(TokenRequestContext request) {
List exceptions = new ArrayList<>(2);
PowershellManager defaultPowerShellManager = new PowershellManager(Platform.isWindows()
? DEFAULT_WINDOWS_PS_EXECUTABLE : DEFAULT_LINUX_PS_EXECUTABLE);
PowershellManager legacyPowerShellManager = Platform.isWindows()
? new PowershellManager(LEGACY_WINDOWS_PS_EXECUTABLE) : null;
List powershellManagers = Arrays.asList(defaultPowerShellManager);
if (legacyPowerShellManager != null) {
powershellManagers.add(legacyPowerShellManager);
}
return Flux.fromIterable(powershellManagers)
.flatMap(powershellManager -> getAccessTokenFromPowerShell(request, powershellManager)
.onErrorResume(t -> {
if (!t.getClass().getSimpleName().equals("CredentialUnavailableException")) {
return Mono.error(new ClientAuthenticationException(
"Azure Powershell authentication failed. Error Details: " + t.getMessage(),
null, t));
}
exceptions.add((CredentialUnavailableException) t);
return Mono.empty();
}), 1)
.next()
.switchIfEmpty(Mono.defer(() -> {
// Chain Exceptions.
CredentialUnavailableException last = exceptions.get(exceptions.size() - 1);
for (int z = exceptions.size() - 2; z >= 0; z--) {
CredentialUnavailableException current = exceptions.get(z);
last = new CredentialUnavailableException("Azure Powershell authentication failed using default"
+ "powershell(pwsh) with following error: " + current.getMessage()
+ "\r\n" + "Azure Powershell authentication failed using powershell-core(powershell)"
+ " with following error: " + last.getMessage(),
last.getCause());
}
return Mono.error(last);
}));
}
private Mono getAccessTokenFromPowerShell(TokenRequestContext request,
PowershellManager powershellManager) {
return powershellManager.initSession()
.flatMap(manager -> manager.runCommand("Import-Module Az.Accounts -MinimumVersion 2.2.0 -PassThru")
.flatMap(output -> {
if (output.contains("The specified module 'Az.Accounts' with version '2.2.0' was not loaded "
+ "because no valid module file")) {
return Mono.error(new CredentialUnavailableException(
"Az.Account module with version >= 2.2.0 is not installed. It needs to be installed to use"
+ "Azure PowerShell Credential."));
}
StringBuilder accessTokenCommand = new StringBuilder("Get-AzAccessToken -ResourceUrl ");
accessTokenCommand.append(ScopeUtil.scopesToResource(request.getScopes()));
accessTokenCommand.append(" | ConvertTo-Json");
return manager.runCommand(accessTokenCommand.toString())
.flatMap(out -> {
if (out.contains("Run Connect-AzAccount to login")) {
return Mono.error(new CredentialUnavailableException(
"Run Connect-AzAccount to login to Azure account in PowerShell."));
}
try {
Map objectMap = SERIALIZER_ADAPTER.deserialize(out, Map.class,
SerializerEncoding.JSON);
String accessToken = objectMap.get("Token");
String time = objectMap.get("ExpiresOn");
OffsetDateTime expiresOn = OffsetDateTime.parse(time)
.withOffsetSameInstant(ZoneOffset.UTC);
return Mono.just(new AccessToken(accessToken, expiresOn));
} catch (IOException e) {
return Mono.error(logger
.logExceptionAsError(new CredentialUnavailableException(
"Encountered error when deserializing response from Azure Power Shell.", e)));
}
});
})).doFinally(ignored -> powershellManager.close());
}
/**
* Asynchronously acquire a token from Active Directory with a client secret.
*
* @param request the details of the token request
* @return a Publisher that emits an AccessToken
*/
public Mono authenticateWithConfidentialClient(TokenRequestContext request) {
return confidentialClientApplicationAccessor.getValue()
.flatMap(confidentialClient -> Mono.fromFuture(() -> confidentialClient.acquireToken(
ClientCredentialParameters.builder(new HashSet<>(request.getScopes())).build()))
.map(MsalToken::new));
}
private HttpPipeline setupPipeline(HttpClient httpClient) {
List policies = new ArrayList<>();
HttpLogOptions httpLogOptions = new HttpLogOptions();
HttpPolicyProviders.addBeforeRetryPolicies(policies);
policies.add(new RetryPolicy());
HttpPolicyProviders.addAfterRetryPolicies(policies);
policies.add(new HttpLoggingPolicy(httpLogOptions));
return new HttpPipelineBuilder().httpClient(httpClient)
.policies(policies.toArray(new HttpPipelinePolicy[0])).build();
}
/**
* Asynchronously acquire a token from Active Directory with a username and a password.
*
* @param request the details of the token request
* @param username the username of the user
* @param password the password of the user
* @return a Publisher that emits an AccessToken
*/
public Mono authenticateWithUsernamePassword(TokenRequestContext request,
String username, String password) {
return publicClientApplicationAccessor.getValue()
.flatMap(pc -> Mono.fromFuture(() -> {
UserNamePasswordParameters.UserNamePasswordParametersBuilder userNamePasswordParametersBuilder =
UserNamePasswordParameters.builder(new HashSet<>(request.getScopes()),
username, password.toCharArray());
if (request.getClaims() != null) {
ClaimsRequest customClaimRequest = CustomClaimRequest
.formatAsClaimsRequest(request.getClaims());
userNamePasswordParametersBuilder.claims(customClaimRequest);
}
return pc.acquireToken(userNamePasswordParametersBuilder.build());
}
)).onErrorMap(t -> new ClientAuthenticationException("Failed to acquire token with username and "
+ "password", null, t)).map(MsalToken::new);
}
/**
* Asynchronously acquire a token from the currently logged in client.
*
* @param request the details of the token request
* @param account the account used to login to acquire the last token
* @return a Publisher that emits an AccessToken
*/
public Mono authenticateWithPublicClientCache(TokenRequestContext request, IAccount account) {
return publicClientApplicationAccessor.getValue()
.flatMap(pc -> Mono.fromFuture(() -> {
SilentParameters.SilentParametersBuilder parametersBuilder = SilentParameters.builder(
new HashSet<>(request.getScopes()));
if (request.getClaims() != null) {
ClaimsRequest customClaimRequest = CustomClaimRequest.formatAsClaimsRequest(request.getClaims());
parametersBuilder.claims(customClaimRequest);
parametersBuilder.forceRefresh(true);
}
if (account != null) {
parametersBuilder = parametersBuilder.account(account);
}
try {
return pc.acquireTokenSilently(parametersBuilder.build());
} catch (MalformedURLException e) {
return getFailedCompletableFuture(logger.logExceptionAsError(new RuntimeException(e)));
}
}).map(MsalToken::new)
.filter(t -> OffsetDateTime.now().isBefore(t.getExpiresAt().minus(REFRESH_OFFSET)))
.switchIfEmpty(Mono.fromFuture(() -> {
SilentParameters.SilentParametersBuilder forceParametersBuilder = SilentParameters.builder(
new HashSet<>(request.getScopes())).forceRefresh(true);
if (request.getClaims() != null) {
ClaimsRequest customClaimRequest = CustomClaimRequest
.formatAsClaimsRequest(request.getClaims());
forceParametersBuilder.claims(customClaimRequest);
}
if (account != null) {
forceParametersBuilder = forceParametersBuilder.account(account);
}
try {
return pc.acquireTokenSilently(forceParametersBuilder.build());
} catch (MalformedURLException e) {
return getFailedCompletableFuture(logger.logExceptionAsError(new RuntimeException(e)));
}
}).map(MsalToken::new)));
}
/**
* Asynchronously acquire a token from the currently logged in client.
*
* @param request the details of the token request
* @return a Publisher that emits an AccessToken
*/
public Mono authenticateWithConfidentialClientCache(TokenRequestContext request) {
return confidentialClientApplicationAccessor.getValue()
.flatMap(confidentialClient -> Mono.fromFuture(() -> {
SilentParameters.SilentParametersBuilder parametersBuilder = SilentParameters.builder(
new HashSet<>(request.getScopes()));
try {
return confidentialClient.acquireTokenSilently(parametersBuilder.build());
} catch (MalformedURLException e) {
return getFailedCompletableFuture(logger.logExceptionAsError(new RuntimeException(e)));
}
}).map(ar -> (AccessToken) new MsalToken(ar))
.filter(t -> OffsetDateTime.now().isBefore(t.getExpiresAt().minus(REFRESH_OFFSET))));
}
/**
* Asynchronously acquire a token from Active Directory with a device code challenge. Active Directory will provide
* a device code for login and the user must meet the challenge by authenticating in a browser on the current or a
* different device.
*
* @param request the details of the token request
* @param deviceCodeConsumer the user provided closure that will consume the device code challenge
* @return a Publisher that emits an AccessToken when the device challenge is met, or an exception if the device
* code expires
*/
public Mono authenticateWithDeviceCode(TokenRequestContext request,
Consumer deviceCodeConsumer) {
return publicClientApplicationAccessor.getValue().flatMap(pc ->
Mono.fromFuture(() -> {
DeviceCodeFlowParameters.DeviceCodeFlowParametersBuilder parametersBuilder =
DeviceCodeFlowParameters.builder(
new HashSet<>(request.getScopes()), dc -> deviceCodeConsumer.accept(
new DeviceCodeInfo(dc.userCode(), dc.deviceCode(), dc.verificationUri(),
OffsetDateTime.now().plusSeconds(dc.expiresIn()), dc.message())));
if (request.getClaims() != null) {
ClaimsRequest customClaimRequest = CustomClaimRequest.formatAsClaimsRequest(request.getClaims());
parametersBuilder.claims(customClaimRequest);
}
return pc.acquireToken(parametersBuilder.build());
}).onErrorMap(t -> new ClientAuthenticationException("Failed to acquire token with device code", null, t))
.map(MsalToken::new));
}
/**
* Asynchronously acquire a token from Active Directory with Visual Sutdio cached refresh token.
*
* @param request the details of the token request
* @return a Publisher that emits an AccessToken.
*/
public Mono authenticateWithVsCodeCredential(TokenRequestContext request, String cloud) {
if (isADFSTenant()) {
return Mono.error(new CredentialUnavailableException("VsCodeCredential "
+ "authentication unavailable. ADFS tenant/authorities are not supported."));
}
VisualStudioCacheAccessor accessor = new VisualStudioCacheAccessor();
String credential = accessor.getCredentials("VS Code Azure", cloud);
RefreshTokenParameters.RefreshTokenParametersBuilder parametersBuilder = RefreshTokenParameters
.builder(new HashSet<>(request.getScopes()), credential);
if (request.getClaims() != null) {
ClaimsRequest customClaimRequest = CustomClaimRequest.formatAsClaimsRequest(request.getClaims());
parametersBuilder.claims(customClaimRequest);
}
return publicClientApplicationAccessor.getValue()
.flatMap(pc -> Mono.fromFuture(pc.acquireToken(parametersBuilder.build())).map(MsalToken::new));
}
/**
* Asynchronously acquire a token from Active Directory with an authorization code from an oauth flow.
*
* @param request the details of the token request
* @param authorizationCode the oauth2 authorization code
* @param redirectUrl the redirectUrl where the authorization code is sent to
* @return a Publisher that emits an AccessToken
*/
public Mono authenticateWithAuthorizationCode(TokenRequestContext request, String authorizationCode,
URI redirectUrl) {
AuthorizationCodeParameters.AuthorizationCodeParametersBuilder parametersBuilder =
AuthorizationCodeParameters.builder(authorizationCode, redirectUrl)
.scopes(new HashSet<>(request.getScopes()));
if (request.getClaims() != null) {
ClaimsRequest customClaimRequest = CustomClaimRequest.formatAsClaimsRequest(request.getClaims());
parametersBuilder.claims(customClaimRequest);
}
Mono acquireToken;
if (clientSecret != null) {
acquireToken = confidentialClientApplicationAccessor.getValue()
.flatMap(pc -> Mono.fromFuture(() -> pc.acquireToken(parametersBuilder.build())));
} else {
acquireToken = publicClientApplicationAccessor.getValue()
.flatMap(pc -> Mono.fromFuture(() -> pc.acquireToken(parametersBuilder.build())));
}
return acquireToken.onErrorMap(t -> new ClientAuthenticationException(
"Failed to acquire token with authorization code", null, t)).map(MsalToken::new);
}
/**
* Asynchronously acquire a token from Active Directory by opening a browser and wait for the user to login. The
* credential will run a minimal local HttpServer at the given port, so {@code http://localhost:{port}} must be
* listed as a valid reply URL for the application.
*
* @param request the details of the token request
* @param port the port on which the HTTP server is listening
* @return a Publisher that emits an AccessToken
*/
public Mono authenticateWithBrowserInteraction(TokenRequestContext request, Integer port,
String redirectUrl) {
URI redirectUri;
String redirect;
if (port != null) {
redirect = HTTP_LOCALHOST + ":" + port;
} else if (redirectUrl != null) {
redirect = redirectUrl;
} else {
redirect = HTTP_LOCALHOST;
}
try {
redirectUri = new URI(redirect);
} catch (URISyntaxException e) {
return Mono.error(logger.logExceptionAsError(new RuntimeException(e)));
}
InteractiveRequestParameters.InteractiveRequestParametersBuilder builder =
InteractiveRequestParameters.builder(redirectUri)
.scopes(new HashSet<>(request.getScopes()))
.prompt(Prompt.SELECT_ACCOUNT);
if (request.getClaims() != null) {
ClaimsRequest customClaimRequest = CustomClaimRequest.formatAsClaimsRequest(request.getClaims());
builder.claims(customClaimRequest);
}
Mono acquireToken = publicClientApplicationAccessor.getValue()
.flatMap(pc -> Mono.fromFuture(() -> pc.acquireToken(builder.build())));
return acquireToken.onErrorMap(t -> new ClientAuthenticationException(
"Failed to acquire token with Interactive Browser Authentication.", null, t)).map(MsalToken::new);
}
/**
* Gets token from shared token cache
* */
public Mono authenticateWithSharedTokenCache(TokenRequestContext request, String username) {
// find if the Public Client app with the requested username exists
return publicClientApplicationAccessor.getValue()
.flatMap(pc -> Mono.fromFuture(() -> pc.getAccounts())
.onErrorMap(t -> new CredentialUnavailableException(
"Cannot get accounts from token cache. Error: " + t.getMessage(), t))
.flatMap(set -> {
IAccount requestedAccount;
Map accounts = new HashMap<>(); // home account id -> account
if (set.isEmpty()) {
return Mono.error(new CredentialUnavailableException("SharedTokenCacheCredential "
+ "authentication unavailable. No accounts were found in the cache."));
}
for (IAccount cached : set) {
if (username == null || username.equals(cached.username())) {
if (!accounts.containsKey(cached.homeAccountId())) { // only put the first one
accounts.put(cached.homeAccountId(), cached);
}
}
}
if (accounts.isEmpty()) {
// no more accounts after filtering, username must be set
return Mono.error(new RuntimeException(String.format("SharedTokenCacheCredential "
+ "authentication unavailable. No account matching the specified username: %s was "
+ "found in the cache.", username)));
} else if (accounts.size() > 1) {
if (username == null) {
return Mono.error(new RuntimeException("SharedTokenCacheCredential authentication "
+ "unavailable. Multiple accounts were found in the cache. Use username and "
+ "tenant id to disambiguate."));
} else {
return Mono.error(new RuntimeException(String.format("SharedTokenCacheCredential "
+ "authentication unavailable. Multiple accounts matching the specified username: "
+ "%s were found in the cache.", username)));
}
} else {
requestedAccount = accounts.values().iterator().next();
}
return authenticateWithPublicClientCache(request, requestedAccount);
}));
}
/**
* Asynchronously acquire a token from the Azure Arc Managed Service Identity endpoint.
*
* @param identityEndpoint the Identity endpoint to acquire token from
* @param request the details of the token request
* @return a Publisher that emits an AccessToken
*/
public Mono authenticateToArcManagedIdentityEndpoint(String identityEndpoint,
TokenRequestContext request) {
return Mono.fromCallable(() -> {
HttpURLConnection connection = null;
StringBuilder payload = new StringBuilder();
payload.append("resource=");
payload.append(URLEncoder.encode(ScopeUtil.scopesToResource(request.getScopes()), "UTF-8"));
payload.append("&api-version=");
payload.append(URLEncoder.encode("2019-11-01", "UTF-8"));
URL url = new URL(String.format("%s?%s", identityEndpoint, payload));
String secretKey = null;
try {
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setRequestProperty("Metadata", "true");
connection.connect();
new Scanner(connection.getInputStream(), "UTF-8").useDelimiter("\\A");
} catch (IOException e) {
if (connection == null) {
throw logger.logExceptionAsError(new ClientAuthenticationException("Failed to initialize "
+ "Http URL connection to the endpoint.",
null, e));
}
int status = connection.getResponseCode();
if (status != 401) {
throw logger.logExceptionAsError(new ClientAuthenticationException(String.format("Expected a 401"
+ " Unauthorized response from Azure Arc Managed Identity Endpoint, received: %d", status),
null, e));
}
String realm = connection.getHeaderField("WWW-Authenticate");
if (realm == null) {
throw logger.logExceptionAsError(new ClientAuthenticationException("Did not receive a value"
+ " for WWW-Authenticate header in the response from Azure Arc Managed Identity Endpoint",
null));
}
int separatorIndex = realm.indexOf("=");
if (separatorIndex == -1) {
throw logger.logExceptionAsError(new ClientAuthenticationException("Did not receive a correct value"
+ " for WWW-Authenticate header in the response from Azure Arc Managed Identity Endpoint",
null));
}
String secretKeyPath = realm.substring(separatorIndex + 1);
secretKey = new String(Files.readAllBytes(Paths.get(secretKeyPath)), StandardCharsets.UTF_8);
} finally {
if (connection != null) {
connection.disconnect();
}
}
if (secretKey == null) {
throw logger.logExceptionAsError(new ClientAuthenticationException("Did not receive a secret value"
+ " in the response from Azure Arc Managed Identity Endpoint",
null));
}
try {
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setRequestProperty("Authorization", String.format("Basic %s", secretKey));
connection.setRequestProperty("Metadata", "true");
connection.connect();
Scanner scanner = new Scanner(connection.getInputStream(), "UTF-8").useDelimiter("\\A");
String result = scanner.hasNext() ? scanner.next() : "";
return SERIALIZER_ADAPTER.deserialize(result, MSIToken.class, SerializerEncoding.JSON);
} finally {
if (connection != null) {
connection.disconnect();
}
}
});
}
/**
* Asynchronously acquire a token from the Azure Service Fabric Managed Service Identity endpoint.
*
* @param identityEndpoint the Identity endpoint to acquire token from
* @param identityHeader the identity header to acquire token with
* @param request the details of the token request
* @return a Publisher that emits an AccessToken
*/
public Mono authenticateToServiceFabricManagedIdentityEndpoint(String identityEndpoint,
String identityHeader,
String thumbprint,
TokenRequestContext request) {
return Mono.fromCallable(() -> {
HttpsURLConnection connection = null;
String endpoint = identityEndpoint;
String headerValue = identityHeader;
String endpointVersion = SERVICE_FABRIC_MANAGED_IDENTITY_API_VERSION;
String resource = ScopeUtil.scopesToResource(request.getScopes());
StringBuilder payload = new StringBuilder();
payload.append("resource=");
payload.append(URLEncoder.encode(resource, "UTF-8"));
payload.append("&api-version=");
payload.append(URLEncoder.encode(endpointVersion, "UTF-8"));
if (clientId != null) {
payload.append("&client_id=");
payload.append(URLEncoder.encode(clientId, "UTF-8"));
}
try {
URL url = new URL(String.format("%s?%s", endpoint, payload));
connection = (HttpsURLConnection) url.openConnection();
IdentitySslUtil.addTrustedCertificateThumbprint(getClass().getSimpleName(), connection,
thumbprint);
connection.setRequestMethod("GET");
if (headerValue != null) {
connection.setRequestProperty("Secret", headerValue);
}
connection.setRequestProperty("Metadata", "true");
connection.connect();
Scanner s = new Scanner(connection.getInputStream(), StandardCharsets.UTF_8.name())
.useDelimiter("\\A");
String result = s.hasNext() ? s.next() : "";
return SERIALIZER_ADAPTER.deserialize(result, MSIToken.class, SerializerEncoding.JSON);
} finally {
if (connection != null) {
connection.disconnect();
}
}
});
}
/**
* Asynchronously acquire a token from the App Service Managed Service Identity endpoint.
*
* @param identityEndpoint the Identity endpoint to acquire token from
* @param identityHeader the identity header to acquire token with
* @param msiEndpoint the MSI endpoint to acquire token from
* @param msiSecret the msi secret to acquire token with
* @param request the details of the token request
* @return a Publisher that emits an AccessToken
*/
public Mono authenticateToManagedIdentityEndpoint(String identityEndpoint, String identityHeader,
String msiEndpoint, String msiSecret,
TokenRequestContext request) {
return Mono.fromCallable(() -> {
String endpoint;
String headerValue;
String endpointVersion;
if (identityEndpoint != null) {
endpoint = identityEndpoint;
headerValue = identityHeader;
endpointVersion = IDENTITY_ENDPOINT_VERSION;
} else {
endpoint = msiEndpoint;
headerValue = msiSecret;
endpointVersion = MSI_ENDPOINT_VERSION;
}
String resource = ScopeUtil.scopesToResource(request.getScopes());
HttpURLConnection connection = null;
StringBuilder payload = new StringBuilder();
payload.append("resource=");
payload.append(URLEncoder.encode(resource, "UTF-8"));
payload.append("&api-version=");
payload.append(URLEncoder.encode(endpointVersion, "UTF-8"));
if (clientId != null) {
if (endpointVersion.equals(IDENTITY_ENDPOINT_VERSION)) {
payload.append("&client_id=");
} else {
payload.append("&clientid=");
}
payload.append(URLEncoder.encode(clientId, "UTF-8"));
}
try {
URL url = new URL(String.format("%s?%s", endpoint, payload));
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
if (headerValue != null) {
if (endpointVersion.equals(IDENTITY_ENDPOINT_VERSION)) {
connection.setRequestProperty("X-IDENTITY-HEADER", headerValue);
} else {
connection.setRequestProperty("Secret", headerValue);
}
}
connection.setRequestProperty("Metadata", "true");
connection.connect();
Scanner s = new Scanner(connection.getInputStream(), StandardCharsets.UTF_8.name())
.useDelimiter("\\A");
String result = s.hasNext() ? s.next() : "";
return SERIALIZER_ADAPTER.deserialize(result, MSIToken.class, SerializerEncoding.JSON);
} finally {
if (connection != null) {
connection.disconnect();
}
}
});
}
/**
* Asynchronously acquire a token from the Virtual Machine IMDS endpoint.
*
* @param request the details of the token request
* @return a Publisher that emits an AccessToken
*/
public Mono authenticateToIMDSEndpoint(TokenRequestContext request) {
String resource = ScopeUtil.scopesToResource(request.getScopes());
StringBuilder payload = new StringBuilder();
final int imdsUpgradeTimeInMs = 70 * 1000;
try {
payload.append("api-version=");
payload.append(URLEncoder.encode("2018-02-01", "UTF-8"));
payload.append("&resource=");
payload.append(URLEncoder.encode(resource, "UTF-8"));
if (clientId != null) {
payload.append("&client_id=");
payload.append(URLEncoder.encode(clientId, "UTF-8"));
}
} catch (IOException exception) {
return Mono.error(exception);
}
return checkIMDSAvailable().flatMap(available -> Mono.fromCallable(() -> {
int retry = 1;
while (retry <= options.getMaxRetry()) {
URL url = null;
HttpURLConnection connection = null;
try {
url =
new URL(String.format("http://169.254.169.254/metadata/identity/oauth2/token?%s",
payload.toString()));
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setRequestProperty("Metadata", "true");
connection.connect();
Scanner s = new Scanner(connection.getInputStream(), StandardCharsets.UTF_8.name())
.useDelimiter("\\A");
String result = s.hasNext() ? s.next() : "";
return SERIALIZER_ADAPTER.deserialize(result, MSIToken.class, SerializerEncoding.JSON);
} catch (IOException exception) {
if (connection == null) {
throw logger.logExceptionAsError(new RuntimeException(
String.format("Could not connect to the url: %s.", url), exception));
}
int responseCode;
try {
responseCode = connection.getResponseCode();
} catch (Exception e) {
throw logger.logExceptionAsError(
new CredentialUnavailableException(
"ManagedIdentityCredential authentication unavailable. "
+ "Connection to IMDS endpoint cannot be established, "
+ e.getMessage() + ".", e));
}
if (responseCode == 400) {
throw logger.logExceptionAsError(
new CredentialUnavailableException(
"ManagedIdentityCredential authentication unavailable. "
+ "Connection to IMDS endpoint cannot be established.", null));
}
if (responseCode == 410
|| responseCode == 429
|| responseCode == 404
|| (responseCode >= 500 && responseCode <= 599)) {
int retryTimeoutInMs = options.getRetryTimeout()
.apply(Duration.ofSeconds(RANDOM.nextInt(retry))).getNano() / 1000;
// Error code 410 indicates IMDS upgrade is in progress, which can take up to 70s
//
retryTimeoutInMs =
(responseCode == 410 && retryTimeoutInMs < imdsUpgradeTimeInMs) ? imdsUpgradeTimeInMs
: retryTimeoutInMs;
retry++;
if (retry > options.getMaxRetry()) {
break;
} else {
sleep(retryTimeoutInMs);
}
} else {
throw logger.logExceptionAsError(new RuntimeException(
"Couldn't acquire access token from IMDS, verify your objectId, "
+ "clientId or msiResourceId", exception));
}
} finally {
if (connection != null) {
connection.disconnect();
}
}
}
throw logger.logExceptionAsError(new RuntimeException(
String.format("MSI: Failed to acquire tokens after retrying %s times",
options.getMaxRetry())));
}));
}
private Mono checkIMDSAvailable() {
StringBuilder payload = new StringBuilder();
try {
payload.append("api-version=");
payload.append(URLEncoder.encode("2018-02-01", "UTF-8"));
} catch (IOException exception) {
return Mono.error(exception);
}
return Mono.fromCallable(() -> {
HttpURLConnection connection = null;
URL url = new URL(String.format("http://169.254.169.254/metadata/identity/oauth2/token?%s",
payload.toString()));
try {
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setConnectTimeout(500);
connection.connect();
} catch (Exception e) {
throw logger.logExceptionAsError(
new CredentialUnavailableException(
"ManagedIdentityCredential authentication unavailable. "
+ "Connection to IMDS endpoint cannot be established, "
+ e.getMessage() + ".", e));
} finally {
if (connection != null) {
connection.disconnect();
}
}
return true;
});
}
private static void sleep(int millis) {
try {
Thread.sleep(millis);
} catch (InterruptedException ex) {
throw new IllegalStateException(ex);
}
}
private static Proxy proxyOptionsToJavaNetProxy(ProxyOptions options) {
switch (options.getType()) {
case SOCKS4:
case SOCKS5:
return new Proxy(Type.SOCKS, options.getAddress());
case HTTP:
default:
return new Proxy(Type.HTTP, options.getAddress());
}
}
private String getSafeWorkingDirectory() {
if (isWindowsPlatform()) {
if (CoreUtils.isNullOrEmpty(DEFAULT_WINDOWS_SYSTEM_ROOT)) {
return null;
}
return DEFAULT_WINDOWS_SYSTEM_ROOT + "\\system32";
} else {
return DEFAULT_MAC_LINUX_PATH;
}
}
private boolean isWindowsPlatform() {
return System.getProperty("os.name").contains("Windows");
}
private String redactInfo(String regex, String input) {
return input.replaceAll(regex, "****");
}
void openUrl(String url) throws IOException {
Runtime rt = Runtime.getRuntime();
String os = System.getProperty("os.name").toLowerCase(Locale.ROOT);
if (os.contains("win")) {
rt.exec("rundll32 url.dll,FileProtocolHandler " + url);
} else if (os.contains("mac")) {
rt.exec("open " + url);
} else if (os.contains("nix") || os.contains("nux")) {
rt.exec("xdg-open " + url);
} else {
logger.error("Browser could not be opened - please open {} in a browser on this device.", url);
}
}
private CompletableFuture getFailedCompletableFuture(Exception e) {
CompletableFuture completableFuture = new CompletableFuture<>();
completableFuture.completeExceptionally(e);
return completableFuture;
}
private void initializeHttpPipelineAdapter() {
// If user supplies the pipeline, then it should override all other properties
// as they should directly be set on the pipeline.
HttpPipeline httpPipeline = options.getHttpPipeline();
if (httpPipeline != null) {
httpPipelineAdapter = new HttpPipelineAdapter(httpPipeline);
} else {
// If http client is set on the credential, then it should override the proxy options if any configured.
HttpClient httpClient = options.getHttpClient();
if (httpClient != null) {
httpPipelineAdapter = new HttpPipelineAdapter(setupPipeline(httpClient));
} else if (options.getProxyOptions() == null) {
//Http Client is null, proxy options are not set, use the default client and build the pipeline.
httpPipelineAdapter = new HttpPipelineAdapter(setupPipeline(HttpClient.createDefault()));
}
}
}
/**
* Get the configured tenant id.
*
* @return the tenant id.
*/
public String getTenantId() {
return tenantId;
}
/**
* Get the configured client id.
*
* @return the client id.
*/
public String getClientId() {
return clientId;
}
private boolean isADFSTenant() {
return this.tenantId.equals(ADFS_TENANT);
}
private byte[] getCertificateBytes() throws IOException {
if (certificatePath != null) {
return Files.readAllBytes(Paths.get(certificatePath));
} else if (certificate != null) {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int read = certificate.read(buffer, 0, buffer.length);
while (read != -1) {
outputStream.write(buffer, 0, read);
read = certificate.read(buffer, 0, buffer.length);
}
return outputStream.toByteArray();
} else {
return new byte[0];
}
}
private InputStream getCertificateInputStream() throws IOException {
if (certificatePath != null) {
return new FileInputStream(certificatePath);
} else if (certificate != null) {
return certificate;
} else {
return null;
}
}
}
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