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/*
* Copyright 2017 Google Inc.
*
* 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 com.google.firebase;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.api.client.googleapis.util.Utils;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.util.Key;
import com.google.auth.oauth2.GoogleCredentials;
import com.google.cloud.firestore.FirestoreOptions;
import com.google.common.base.Strings;
import com.google.common.base.Supplier;
import com.google.common.base.Suppliers;
import com.google.common.collect.ImmutableList;
import com.google.firebase.internal.FirebaseThreadManagers;
import com.google.firebase.internal.NonNull;
import com.google.firebase.internal.Nullable;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/** Configurable Firebase options. */
public final class FirebaseOptions {
private static final List FIREBASE_SCOPES =
ImmutableList.of(
// Enables access to Firebase Realtime Database.
"https://www.googleapis.com/auth/firebase.database",
// Enables access to the email address associated with a project.
"https://www.googleapis.com/auth/userinfo.email",
// Enables access to Google Identity Toolkit (for user management APIs).
"https://www.googleapis.com/auth/identitytoolkit",
// Enables access to Google Cloud Storage.
"https://www.googleapis.com/auth/devstorage.full_control",
// Enables access to Google Cloud Firestore
"https://www.googleapis.com/auth/cloud-platform",
"https://www.googleapis.com/auth/datastore");
static final Supplier APPLICATION_DEFAULT_CREDENTIALS =
new Supplier() {
@Override
public GoogleCredentials get() {
try {
return GoogleCredentials.getApplicationDefault().createScoped(FIREBASE_SCOPES);
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
};
private final String databaseUrl;
private final String storageBucket;
private final Supplier credentialsSupplier;
private final Map databaseAuthVariableOverride;
private final String projectId;
private final String serviceAccountId;
private final HttpTransport httpTransport;
private final int connectTimeout;
private final int readTimeout;
private final JsonFactory jsonFactory;
private final ThreadManager threadManager;
private final FirestoreOptions firestoreOptions;
private FirebaseOptions(@NonNull final FirebaseOptions.Builder builder) {
this.databaseUrl = builder.databaseUrl;
this.credentialsSupplier = checkNotNull(
builder.credentialsSupplier, "FirebaseOptions must be initialized with setCredentials().");
this.databaseAuthVariableOverride = builder.databaseAuthVariableOverride;
this.projectId = builder.projectId;
if (!Strings.isNullOrEmpty(builder.storageBucket)) {
checkArgument(!builder.storageBucket.startsWith("gs://"),
"StorageBucket must not include 'gs://' prefix.");
}
if (!Strings.isNullOrEmpty(builder.serviceAccountId)) {
this.serviceAccountId = builder.serviceAccountId;
} else {
this.serviceAccountId = null;
}
this.storageBucket = builder.storageBucket;
this.httpTransport = checkNotNull(builder.httpTransport,
"FirebaseOptions must be initialized with a non-null HttpTransport.");
this.jsonFactory = checkNotNull(builder.jsonFactory,
"FirebaseOptions must be initialized with a non-null JsonFactory.");
this.threadManager = checkNotNull(builder.threadManager,
"FirebaseOptions must be initialized with a non-null ThreadManager.");
checkArgument(builder.connectTimeout >= 0);
this.connectTimeout = builder.connectTimeout;
checkArgument(builder.readTimeout >= 0);
this.readTimeout = builder.readTimeout;
this.firestoreOptions = builder.firestoreOptions;
}
/**
* Returns the Realtime Database URL to use for data storage.
*
* @return The Realtime Database URL supplied via {@link Builder#setDatabaseUrl}.
*/
public String getDatabaseUrl() {
return databaseUrl;
}
/**
* Returns the name of the Google Cloud Storage bucket used for storing application data.
*
* @return The cloud storage bucket name set via {@link Builder#setStorageBucket}
*/
public String getStorageBucket() {
return storageBucket;
}
GoogleCredentials getCredentials() {
return credentialsSupplier.get();
}
/**
* Returns the auth variable to be used in Security Rules.
*
* @return The auth variable supplied via {@link
* Builder#setDatabaseAuthVariableOverride}.
*/
public Map getDatabaseAuthVariableOverride() {
return databaseAuthVariableOverride;
}
/**
* Returns the Google Cloud project ID.
*
* @return The project ID set via {@link Builder#setProjectId(String)}
*/
public String getProjectId() {
return projectId;
}
/**
* Returns the client email address of the service account.
*
* @return The client email of the service account set via
* {@link Builder#setServiceAccountId(String)}
*/
public String getServiceAccountId() {
return serviceAccountId;
}
/**
* Returns the HttpTransport used to call remote HTTP endpoints. This transport is
* used by all services of the SDK, except for FirebaseDatabase.
*
* @return A Google API client HttpTransport instance.
*/
@NonNull
public HttpTransport getHttpTransport() {
return httpTransport;
}
/**
* Returns the JsonFactory used to parse JSON when calling remote HTTP endpoints.
*
* @return A Google API client JsonFactory instance.
*/
@NonNull
public JsonFactory getJsonFactory() {
return jsonFactory;
}
/**
* Returns the connect timeout in milliseconds, which is applied to outgoing REST calls
* made by the SDK.
*
* @return Connect timeout in milliseconds. 0 indicates an infinite timeout.
*/
public int getConnectTimeout() {
return connectTimeout;
}
/**
* Returns the read timeout in milliseconds, which is applied to outgoing REST calls
* made by the SDK.
*
* @return Read timeout in milliseconds. 0 indicates an infinite timeout.
*/
public int getReadTimeout() {
return readTimeout;
}
@NonNull
ThreadManager getThreadManager() {
return threadManager;
}
FirestoreOptions getFirestoreOptions() {
return firestoreOptions;
}
/**
* Creates an empty builder.
*
* @return A new builder instance.
*/
public static Builder builder() {
return new Builder();
}
/**
* Builder for constructing {@link FirebaseOptions}.
*/
public static final class Builder {
@Key("databaseAuthVariableOverride")
private Map databaseAuthVariableOverride = new HashMap<>();
@Key("databaseUrl")
private String databaseUrl;
@Key("projectId")
private String projectId;
@Key("storageBucket")
private String storageBucket;
@Key("serviceAccountId")
private String serviceAccountId;
private Supplier credentialsSupplier;
private FirestoreOptions firestoreOptions;
private HttpTransport httpTransport = Utils.getDefaultTransport();
private JsonFactory jsonFactory = Utils.getDefaultJsonFactory();
private ThreadManager threadManager = FirebaseThreadManagers.DEFAULT_THREAD_MANAGER;
private int connectTimeout;
private int readTimeout;
/** Constructs an empty builder. */
public Builder() {}
/**
* Initializes the builder's values from the options object.
*
* The new builder is not backed by this object's values, that is changes made to the new
* builder don't change the values of the origin object.
*/
public Builder(FirebaseOptions options) {
databaseUrl = options.databaseUrl;
storageBucket = options.storageBucket;
credentialsSupplier = options.credentialsSupplier;
databaseAuthVariableOverride = options.databaseAuthVariableOverride;
projectId = options.projectId;
httpTransport = options.httpTransport;
jsonFactory = options.jsonFactory;
threadManager = options.threadManager;
connectTimeout = options.connectTimeout;
readTimeout = options.readTimeout;
firestoreOptions = options.firestoreOptions;
}
/**
* Sets the Realtime Database URL to use for data storage.
*
*
See
* Initialize the SDK for code samples and detailed documentation.
*
* @param databaseUrl The Realtime Database URL to use for data storage.
* @return This Builder instance is returned so subsequent calls can be chained.
*/
public Builder setDatabaseUrl(@Nullable String databaseUrl) {
this.databaseUrl = databaseUrl;
return this;
}
/**
* Sets the name of the Google Cloud Storage bucket for reading and writing application data.
* This should be the full name of the bucket as listed in the
* Google Cloud Platform Console, and must not
* include {@code gs://} or any other protocol prefixes.
* The same credential used to initialize the SDK (see {@link Builder#setCredentials}) is
* used to access the bucket.
*
*
See
* Introduction to the Admin Cloud Storage API for code samples and detailed documentation.
*
* @param storageBucket The full name of an existing Google Cloud Storage bucket, excluding any
* protocol prefixes.
* @return This Builder instance is returned so subsequent calls can be chained.
*/
public Builder setStorageBucket(String storageBucket) {
checkArgument(!Strings.isNullOrEmpty(storageBucket),
"Storage bucket must not be null or empty");
this.storageBucket = storageBucket;
return this;
}
/**
* Sets the GoogleCredentials to use to authenticate the SDK. This parameter
* must be specified when creating a new instance of {@link FirebaseOptions}.
*
*
See
* Initialize the SDK for code samples and detailed documentation.
*
* @param credentials A
* {@code GoogleCredentials}
* instance used to authenticate the SDK.
* @return This Builder instance is returned so subsequent calls can be chained.
*/
public Builder setCredentials(GoogleCredentials credentials) {
this.credentialsSupplier = Suppliers
.ofInstance(checkNotNull(credentials).createScoped(FIREBASE_SCOPES));
return this;
}
/**
* Sets the Supplier of GoogleCredentials to use to authenticate the
* SDK. This is NOT intended for public use outside the SDK.
*
* @param credentialsSupplier Supplier instance that wraps GoogleCredentials.
* @return This Builder instance is returned so subsequent calls can be chained.
*/
Builder setCredentials(Supplier credentialsSupplier) {
this.credentialsSupplier = checkNotNull(credentialsSupplier);
return this;
}
/**
* Sets the auth variable to be used by the Realtime Database rules.
*
* When set, security rules for Realtime Database actions are evaluated using the provided
* auth object. During evaluation the object is available on the auth variable. Use
* this option to enforce schema validation and additional security for this app instance.
*
*
If this option is not provided, security rules are bypassed entirely for this app
* instance. If this option is set to null, security rules are evaluated against an
* unauthenticated user. That is, the auth variable is null.
*
*
See
* Authenticate with limited privileges for code samples and detailed documentation.
*
* @param databaseAuthVariableOverride The value to use for the auth variable in
* the security rules for Realtime Database actions.
* @return This Builder instance is returned so subsequent calls can be chained.
*/
public Builder setDatabaseAuthVariableOverride(
@Nullable Map databaseAuthVariableOverride) {
this.databaseAuthVariableOverride = databaseAuthVariableOverride;
return this;
}
/**
* Sets the Google Cloud project ID that should be associated with an app.
*
* @param projectId A non-null, non-empty project ID string.
* @return This Builder instance is returned so subsequent calls can be chained.
*/
public Builder setProjectId(@NonNull String projectId) {
checkArgument(!Strings.isNullOrEmpty(projectId), "Project ID must not be null or empty");
this.projectId = projectId;
return this;
}
/**
* Sets the client email address of the service account that should be associated with an app.
*
* This is used to
* create custom auth tokens when service account credentials are not available. The client
* email address of a service account can be found in the {@code client_email} field of the
* service account JSON.
*
* @param serviceAccountId A service account email address string.
* @return This Builder instance is returned so subsequent calls can be chained.
*/
public Builder setServiceAccountId(@NonNull String serviceAccountId) {
checkArgument(!Strings.isNullOrEmpty(serviceAccountId),
"Service account ID must not be null or empty");
this.serviceAccountId = serviceAccountId;
return this;
}
/**
* Sets the HttpTransport used to make remote HTTP calls. A reasonable default
* is used if not explicitly set. The transport specified by calling this method is
* used by all services of the SDK, except for FirebaseDatabase.
*
* @param httpTransport An HttpTransport instance
* @return This Builder instance is returned so subsequent calls can be chained.
*/
public Builder setHttpTransport(HttpTransport httpTransport) {
this.httpTransport = httpTransport;
return this;
}
/**
* Sets the JsonFactory used to parse JSON when making remote HTTP calls. A
* reasonable default is used if not explicitly set.
*
* @param jsonFactory A JsonFactory instance.
* @return This Builder instance is returned so subsequent calls can be chained.
*/
public Builder setJsonFactory(JsonFactory jsonFactory) {
this.jsonFactory = jsonFactory;
return this;
}
/**
* Sets the ThreadManager used to initialize thread pools and thread factories
* for Firebase apps.
*
* @param threadManager A ThreadManager instance.
* @return This Builder instance is returned so subsequent calls can be chained.
*/
public Builder setThreadManager(ThreadManager threadManager) {
this.threadManager = threadManager;
return this;
}
/**
* Sets the FirestoreOptions used to initialize Firestore in the
* {@link com.google.firebase.cloud.FirestoreClient} API. This can be used to customize
* low-level transport (GRPC) parameters, and timestamp handling behavior.
*
*
If credentials or a project ID is set in FirestoreOptions, they will get
* overwritten by the corresponding parameters in FirebaseOptions.
*
* @param firestoreOptions A FirestoreOptions instance.
* @return This Builder instance is returned so subsequent calls can be chained.
*/
public Builder setFirestoreOptions(FirestoreOptions firestoreOptions) {
this.firestoreOptions = firestoreOptions;
return this;
}
/**
* Sets the connect timeout for outgoing HTTP (REST) connections made by the SDK. This is used
* when opening a communication link to a remote HTTP endpoint. This setting does not
* affect the {@link com.google.firebase.database.FirebaseDatabase} and
* {@link com.google.firebase.cloud.FirestoreClient} APIs.
*
* @param connectTimeout Connect timeout in milliseconds. Must not be negative.
* @return This Builder instance is returned so subsequent calls can be chained.
*/
public Builder setConnectTimeout(int connectTimeout) {
this.connectTimeout = connectTimeout;
return this;
}
/**
* Sets the read timeout for outgoing HTTP (REST) calls made by the SDK. This does not affect
* the {@link com.google.firebase.database.FirebaseDatabase} and
* {@link com.google.firebase.cloud.FirestoreClient} APIs.
*
* @param readTimeout Read timeout in milliseconds. Must not be negative.
* @return This Builder instance is returned so subsequent calls can be chained.
*/
public Builder setReadTimeout(int readTimeout) {
this.readTimeout = readTimeout;
return this;
}
/**
* Builds the {@link FirebaseOptions} instance from the previously set options.
*
* @return A {@link FirebaseOptions} instance created from the previously set options.
*/
public FirebaseOptions build() {
return new FirebaseOptions(this);
}
}
}