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/*
* Copyright 2015, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package nl.topicus.jdbc.shaded.com.google.auth.oauth2;
import static nl.topicus.jdbc.shaded.com.google.auth.oauth2.OAuth2Utils.JSON_FACTORY;
import static nl.topicus.jdbc.shaded.com.google.auth.oauth2.OAuth2Utils.UTF_8;
import static nl.topicus.jdbc.shaded.com.google.common.base.MoreObjects.firstNonNull;
import nl.topicus.jdbc.shaded.com.google.api.client.http.GenericUrl;
import nl.topicus.jdbc.shaded.com.google.api.client.http.HttpRequest;
import nl.topicus.jdbc.shaded.com.google.api.client.http.HttpRequestFactory;
import nl.topicus.jdbc.shaded.com.google.api.client.http.HttpResponse;
import nl.topicus.jdbc.shaded.com.google.api.client.http.UrlEncodedContent;
import nl.topicus.jdbc.shaded.com.google.api.client.json.GenericJson;
import nl.topicus.jdbc.shaded.com.google.api.client.json.JsonFactory;
import nl.topicus.jdbc.shaded.com.google.api.client.json.JsonObjectParser;
import nl.topicus.jdbc.shaded.com.google.api.client.util.GenericData;
import nl.topicus.jdbc.shaded.com.google.api.client.util.Preconditions;
import nl.topicus.jdbc.shaded.com.google.auth.http.HttpTransportFactory;
import java.io.ByteArrayInputStream;
import nl.topicus.jdbc.shaded.com.google.common.base.MoreObjects;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.net.URI;
import java.util.Date;
import java.util.Map;
import java.util.Objects;
/**
* OAuth2 Credentials representing a user's identity and consent.
*/
public class UserCredentials extends GoogleCredentials {
private static final String GRANT_TYPE = "refresh_token";
private static final String PARSE_ERROR_PREFIX = "Error parsing token refresh response. ";
private static final long serialVersionUID = -4800758775038679176L;
private final String clientId;
private final String clientSecret;
private final String refreshToken;
private final URI tokenServerUri;
private final String transportFactoryClassName;
private transient HttpTransportFactory transportFactory;
/**
* Constructor with minimum information and default behavior.
*
* @param clientId Client ID of the credential from the console.
* @param clientSecret Client ID of the credential from the console.
* @param refreshToken A refresh token resulting from a OAuth2 consent flow.
* @deprecated Use {@link #newBuilder()} instead. This constructor will either be deleted or made
* private in a later version.
*/
@Deprecated
public UserCredentials(String clientId, String clientSecret, String refreshToken) {
this(clientId, clientSecret, refreshToken, null, null, null);
}
/**
* Constructor to allow both refresh token and initial access token for 3LO scenarios.
*
* @param clientId Client ID of the credential from the console.
* @param clientSecret Client ID of the credential from the console.
* @param refreshToken A refresh token resulting from a OAuth2 consent flow.
* @param accessToken Initial or temporary access token.
* @deprecated Use {@link #newBuilder()} instead. This constructor will either be deleted or made
* private in a later version.
*/
@Deprecated
public UserCredentials(
String clientId, String clientSecret, String refreshToken, AccessToken accessToken) {
this(clientId, clientSecret, refreshToken, accessToken, null, null);
}
/**
* Constructor with all parameters allowing custom transport and server URL.
*
* @param clientId Client ID of the credential from the console.
* @param clientSecret Client ID of the credential from the console.
* @param refreshToken A refresh token resulting from a OAuth2 consent flow.
* @param accessToken Initial or temporary access token.
* @param transportFactory HTTP transport factory, creates the transport used to get access
* tokens.
* @param tokenServerUri URI of the end point that provides tokens.
* @deprecated Use {@link #newBuilder()} instead. This constructor will either be deleted or made
* private in a later version.
*/
@Deprecated
public UserCredentials(String clientId, String clientSecret, String refreshToken,
AccessToken accessToken, HttpTransportFactory transportFactory, URI tokenServerUri) {
super(accessToken);
this.clientId = Preconditions.checkNotNull(clientId);
this.clientSecret = Preconditions.checkNotNull(clientSecret);
this.refreshToken = refreshToken;
this.transportFactory = firstNonNull(transportFactory,
getFromServiceLoader(HttpTransportFactory.class, OAuth2Utils.HTTP_TRANSPORT_FACTORY));
this.tokenServerUri = (tokenServerUri == null) ? OAuth2Utils.TOKEN_SERVER_URI : tokenServerUri;
this.transportFactoryClassName = this.transportFactory.getClass().getName();
Preconditions.checkState(accessToken != null || refreshToken != null,
"Either accessToken or refreshToken must not be null");
}
/**
* Returns user credentials defined by JSON contents using the format supported by the Cloud SDK.
*
* @param json a map from the JSON representing the credentials.
* @param transportFactory HTTP transport factory, creates the transport used to get access
* tokens.
* @return the credentials defined by the JSON.
* @throws IOException if the credential cannot be created from the JSON.
**/
static UserCredentials fromJson(Map json, HttpTransportFactory transportFactory)
throws IOException {
String clientId = (String) json.get("client_id");
String clientSecret = (String) json.get("client_secret");
String refreshToken = (String) json.get("refresh_token");
if (clientId == null || clientSecret == null || refreshToken == null) {
throw new IOException("Error reading user credential from JSON, "
+ " expecting 'client_id', 'client_secret' and 'refresh_token'.");
}
return UserCredentials.newBuilder()
.setClientId(clientId)
.setClientSecret(clientSecret)
.setRefreshToken(refreshToken)
.setAccessToken(null)
.setHttpTransportFactory(transportFactory)
.setTokenServerUri(null)
.build();
}
/**
* Returns credentials defined by a JSON file stream using the format supported by the Cloud SDK.
*
* @param credentialsStream the stream with the credential definition.
* @return the credential defined by the credentialsStream.
* @throws IOException if the credential cannot be created from the stream.
**/
public static UserCredentials fromStream(InputStream credentialsStream)
throws IOException {
return fromStream(credentialsStream, OAuth2Utils.HTTP_TRANSPORT_FACTORY);
}
/**
* Returns credentials defined by a JSON file stream using the format supported by the Cloud SDK.
*
* @param credentialsStream the stream with the credential definition.
* @param transportFactory HTTP transport factory, creates the transport used to get access
* tokens.
* @return the credential defined by the credentialsStream.
* @throws IOException if the credential cannot be created from the stream.
**/
public static UserCredentials fromStream(InputStream credentialsStream,
HttpTransportFactory transportFactory) throws IOException {
Preconditions.checkNotNull(credentialsStream);
Preconditions.checkNotNull(transportFactory);
JsonFactory jsonFactory = JSON_FACTORY;
JsonObjectParser parser = new JsonObjectParser(jsonFactory);
GenericJson fileContents = parser.parseAndClose(
credentialsStream, OAuth2Utils.UTF_8, GenericJson.class);
String fileType = (String) fileContents.get("type");
if (fileType == null) {
throw new IOException("Error reading credentials from stream, 'type' field not specified.");
}
if (USER_FILE_TYPE.equals(fileType)) {
return fromJson(fileContents, transportFactory);
}
throw new IOException(String.format(
"Error reading credentials from stream, 'type' value '%s' not recognized."
+ " Expecting '%s'.", fileType, USER_FILE_TYPE));
}
/**
* Refreshes the OAuth2 access token by getting a new access token from the refresh token
*/
@Override
public AccessToken refreshAccessToken() throws IOException {
if (refreshToken == null) {
throw new IllegalStateException("UserCredentials instance cannot refresh because there is no"
+ " refresh token.");
}
GenericData tokenRequest = new GenericData();
tokenRequest.set("client_id", clientId);
tokenRequest.set("client_secret", clientSecret);
tokenRequest.set("refresh_token", refreshToken);
tokenRequest.set("grant_type", GRANT_TYPE);
UrlEncodedContent content = new UrlEncodedContent(tokenRequest);
HttpRequestFactory requestFactory = transportFactory.create().createRequestFactory();
HttpRequest request =
requestFactory.buildPostRequest(new GenericUrl(tokenServerUri), content);
request.setParser(new JsonObjectParser(JSON_FACTORY));
HttpResponse response = request.execute();
GenericData responseData = response.parseAs(GenericData.class);
String accessToken =
OAuth2Utils.validateString(responseData, "access_token", PARSE_ERROR_PREFIX);
int expiresInSeconds =
OAuth2Utils.validateInt32(responseData, "expires_in", PARSE_ERROR_PREFIX);
long expiresAtMilliseconds = clock.currentTimeMillis() + expiresInSeconds * 1000;
return new AccessToken(accessToken, new Date(expiresAtMilliseconds));
}
/**
* Returns client ID of the credential from the console.
*
* @return client ID
*/
public final String getClientId() {
return clientId;
}
/**
* Returns client secret of the credential from the console.
*
* @return client secret
*/
public final String getClientSecret() {
return clientSecret;
}
/**
* Returns the refresh token resulting from a OAuth2 consent flow.
*
* @return refresh token
*/
public final String getRefreshToken() {
return refreshToken;
}
/**
* Returns the instance of InputStream containing the following user credentials in JSON format:
* - RefreshToken
* - ClientId
* - ClientSecret
* - ServerTokenUri
*
* @return user credentials stream
*/
private InputStream getUserCredentialsStream() throws IOException {
GenericJson json = new GenericJson();
json.put("type", GoogleCredentials.USER_FILE_TYPE);
if (refreshToken != null) {
json.put("refresh_token", refreshToken);
}
if (tokenServerUri != null) {
json.put("token_server_uri", tokenServerUri);
}
if (clientId != null) {
json.put("client_id", clientId);
}
if (clientSecret != null) {
json.put("client_secret", clientSecret);
}
json.setFactory(JSON_FACTORY);
String text = json.toPrettyString();
return new ByteArrayInputStream(text.getBytes(UTF_8));
}
/**
* Saves the end user credentials into the given file path.
*
* @param filePath Path to file where to store the credentials
*
* @throws IOException An error storing the credentials.
*/
public void save(String filePath) throws IOException {
OAuth2Utils.writeInputStreamToFile(getUserCredentialsStream(), filePath);
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), clientId, clientSecret, refreshToken, tokenServerUri,
transportFactoryClassName);
}
@Override
public String toString() {
return MoreObjects.toStringHelper(this)
.add("requestMetadata", getRequestMetadataInternal())
.add("temporaryAccess", getAccessToken())
.add("clientId", clientId)
.add("refreshToken", refreshToken)
.add("tokenServerUri", tokenServerUri)
.add("transportFactoryClassName", transportFactoryClassName)
.toString();
}
@Override
public boolean equals(Object obj) {
if (!(obj instanceof UserCredentials)) {
return false;
}
UserCredentials other = (UserCredentials) obj;
return super.equals(other)
&& Objects.equals(this.clientId, other.clientId)
&& Objects.equals(this.clientSecret, other.clientSecret)
&& Objects.equals(this.refreshToken, other.refreshToken)
&& Objects.equals(this.tokenServerUri, other.tokenServerUri)
&& Objects.equals(this.transportFactoryClassName, other.transportFactoryClassName);
}
private void readObject(ObjectInputStream input) throws IOException, ClassNotFoundException {
input.defaultReadObject();
transportFactory = newInstance(transportFactoryClassName);
}
public static Builder newBuilder() {
return new Builder();
}
public Builder toBuilder() {
return new Builder(this);
}
public static class Builder extends GoogleCredentials.Builder {
private String clientId;
private String clientSecret;
private String refreshToken;
private URI tokenServerUri;
private HttpTransportFactory transportFactory;
protected Builder() {}
protected Builder(UserCredentials credentials) {
this.clientId = credentials.clientId;
this.clientSecret = credentials.clientSecret;
this.refreshToken = credentials.refreshToken;
this.transportFactory = credentials.transportFactory;
this.tokenServerUri = credentials.tokenServerUri;
}
public Builder setClientId(String clientId) {
this.clientId = clientId;
return this;
}
public Builder setClientSecret(String clientSecret) {
this.clientSecret = clientSecret;
return this;
}
public Builder setRefreshToken(String refreshToken) {
this.refreshToken = refreshToken;
return this;
}
public Builder setTokenServerUri(URI tokenServerUri) {
this.tokenServerUri = tokenServerUri;
return this;
}
public Builder setHttpTransportFactory(HttpTransportFactory transportFactory) {
this.transportFactory = transportFactory;
return this;
}
public Builder setAccessToken(AccessToken token) {
super.setAccessToken(token);
return this;
}
public String getClientId() {
return clientId;
}
public String getClientSecret() {
return clientSecret;
}
public String getRefreshToken() {
return refreshToken;
}
public URI getTokenServerUri() {
return tokenServerUri;
}
public HttpTransportFactory getHttpTransportFactory() {
return transportFactory;
}
public UserCredentials build() {
return new UserCredentials(
clientId, clientSecret, refreshToken, getAccessToken(), transportFactory,tokenServerUri);
}
}
}
