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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.
*/
import firebase from '@firebase/app';
import { forEach, contains, isEmpty, getCount, safeGet } from '@firebase/util';
import { stringify } from '@firebase/util';
import { assert } from '@firebase/util';
import { error, log, logWrapper, warn, ObjectToUniqueKey } from './util/util';
import { Path } from './util/Path';
import { VisibilityMonitor } from './util/VisibilityMonitor';
import { OnlineMonitor } from './util/OnlineMonitor';
import { isAdmin, isValidFormat } from '@firebase/util';
import { Connection } from '../realtime/Connection';
import { CONSTANTS } from '@firebase/util';
import { isMobileCordova, isReactNative, isNodeSdk } from '@firebase/util';
import { ServerActions } from './ServerActions';
import { AuthTokenProvider } from './AuthTokenProvider';
import { RepoInfo } from './RepoInfo';
import { Query } from '../api/Query';
const RECONNECT_MIN_DELAY = 1000;
const RECONNECT_MAX_DELAY_DEFAULT = 60 * 5 * 1000; // 5 minutes in milliseconds (Case: 1858)
const RECONNECT_MAX_DELAY_FOR_ADMINS = 30 * 1000; // 30 seconds for admin clients (likely to be a backend server)
const RECONNECT_DELAY_MULTIPLIER = 1.3;
const RECONNECT_DELAY_RESET_TIMEOUT = 30000; // Reset delay back to MIN_DELAY after being connected for 30sec.
const SERVER_KILL_INTERRUPT_REASON = 'server_kill';
// If auth fails repeatedly, we'll assume something is wrong and log a warning / back off.
const INVALID_AUTH_TOKEN_THRESHOLD = 3;
interface ListenSpec {
onComplete(s: string, p?: any): void;
hashFn(): string;
query: Query;
tag: number | null;
}
interface OnDisconnectRequest {
pathString: string;
action: string;
data: any;
onComplete?: (a: string, b: string) => void;
}
interface OutstandingPut {
action: string;
request: Object;
queued?: boolean;
onComplete: (a: string, b?: string) => void;
}
/**
* Firebase connection. Abstracts wire protocol and handles reconnecting.
*
* NOTE: All JSON objects sent to the realtime connection must have property names enclosed
* in quotes to make sure the closure compiler does not minify them.
*/
export class PersistentConnection extends ServerActions {
// Used for diagnostic logging.
id = PersistentConnection.nextPersistentConnectionId_++;
private log_ = logWrapper('p:' + this.id + ':');
/** @private {Object} */
private interruptReasons_: { [reason: string]: boolean } = {};
private listens_: { [path: string]: { [queryId: string]: ListenSpec } } = {};
private outstandingPuts_: OutstandingPut[] = [];
private outstandingPutCount_ = 0;
private onDisconnectRequestQueue_: OnDisconnectRequest[] = [];
private connected_ = false;
private reconnectDelay_ = RECONNECT_MIN_DELAY;
private maxReconnectDelay_ = RECONNECT_MAX_DELAY_DEFAULT;
private securityDebugCallback_: ((a: Object) => void) | null = null;
lastSessionId: string | null = null;
/** @private {number|null} */
private establishConnectionTimer_: number | null = null;
/** @private {boolean} */
private visible_: boolean = false;
// Before we get connected, we keep a queue of pending messages to send.
private requestCBHash_: { [k: number]: (a: any) => void } = {};
private requestNumber_ = 0;
/** @private {?{
* sendRequest(Object),
* close()
* }} */
private realtime_: {
sendRequest(a: Object): void;
close(): void;
} | null = null;
/** @private {string|null} */
private authToken_: string | null = null;
private forceTokenRefresh_ = false;
private invalidAuthTokenCount_ = 0;
private firstConnection_ = true;
private lastConnectionAttemptTime_: number | null = null;
private lastConnectionEstablishedTime_: number | null = null;
/**
* @private
*/
private static nextPersistentConnectionId_ = 0;
/**
* Counter for number of connections created. Mainly used for tagging in the logs
* @type {number}
* @private
*/
private static nextConnectionId_ = 0;
/**
* @implements {ServerActions}
* @param {!RepoInfo} repoInfo_ Data about the namespace we are connecting to
* @param {function(string, *, boolean, ?number)} onDataUpdate_ A callback for new data from the server
* @param onConnectStatus_
* @param onServerInfoUpdate_
* @param authTokenProvider_
* @param authOverride_
*/
constructor(
private repoInfo_: RepoInfo,
private onDataUpdate_: (
a: string,
b: any,
c: boolean,
d: number | null
) => void,
private onConnectStatus_: (a: boolean) => void,
private onServerInfoUpdate_: (a: any) => void,
private authTokenProvider_: AuthTokenProvider,
private authOverride_?: Object | null
) {
super();
Iif (authOverride_ && !isNodeSdk()) {
throw new Error(
'Auth override specified in options, but not supported on non Node.js platforms'
);
}
this.scheduleConnect_(0);
VisibilityMonitor.getInstance().on('visible', this.onVisible_, this);
Eif (repoInfo_.host.indexOf('fblocal') === -1) {
OnlineMonitor.getInstance().on('online', this.onOnline_, this);
}
}
/**
* @param {!string} action
* @param {*} body
* @param {function(*)=} onResponse
* @protected
*/
protected sendRequest(
action: string,
body: any,
onResponse?: (a: any) => void
) {
const curReqNum = ++this.requestNumber_;
const msg = { r: curReqNum, a: action, b: body };
this.log_(stringify(msg));
assert(
this.connected_,
"sendRequest call when we're not connected not allowed."
);
this.realtime_.sendRequest(msg);
if (onResponse) {
this.requestCBHash_[curReqNum] = onResponse;
}
}
/**
* @inheritDoc
*/
listen(
query: Query,
currentHashFn: () => string,
tag: number | null,
onComplete: (a: string, b: any) => void
) {
const queryId = query.queryIdentifier();
const pathString = query.path.toString();
this.log_('Listen called for ' + pathString + ' ' + queryId);
this.listens_[pathString] = this.listens_[pathString] || {};
assert(
query.getQueryParams().isDefault() ||
!query.getQueryParams().loadsAllData(),
'listen() called for non-default but complete query'
);
assert(
!this.listens_[pathString][queryId],
'listen() called twice for same path/queryId.'
);
const listenSpec: ListenSpec = {
onComplete: onComplete,
hashFn: currentHashFn,
query: query,
tag: tag
};
this.listens_[pathString][queryId] = listenSpec;
if (this.connected_) {
this.sendListen_(listenSpec);
}
}
/**
* @param {!{onComplete(),
* hashFn():!string,
* query: !Query,
* tag: ?number}} listenSpec
* @private
*/
private sendListen_(listenSpec: ListenSpec) {
const query = listenSpec.query;
const pathString = query.path.toString();
const queryId = query.queryIdentifier();
this.log_('Listen on ' + pathString + ' for ' + queryId);
const req: { [k: string]: any } = { /*path*/ p: pathString };
const action = 'q';
// Only bother to send query if it's non-default.
if (listenSpec.tag) {
req['q'] = query.queryObject();
req['t'] = listenSpec.tag;
}
req[/*hash*/ 'h'] = listenSpec.hashFn();
this.sendRequest(action, req, (message: { [k: string]: any }) => {
const payload: any = message[/*data*/ 'd'];
const status: string = message[/*status*/ 's'];
// print warnings in any case...
PersistentConnection.warnOnListenWarnings_(payload, query);
const currentListenSpec =
this.listens_[pathString] && this.listens_[pathString][queryId];
// only trigger actions if the listen hasn't been removed and readded
if (currentListenSpec === listenSpec) {
this.log_('listen response', message);
Iif (status !== 'ok') {
this.removeListen_(pathString, queryId);
}
Eif (listenSpec.onComplete) {
listenSpec.onComplete(status, payload);
}
}
});
}
/**
* @param {*} payload
* @param {!Query} query
* @private
*/
private static warnOnListenWarnings_(payload: any, query: Query) {
if (payload && typeof payload === 'object' && contains(payload, 'w')) {
const warnings = safeGet(payload, 'w');
Eif (Array.isArray(warnings) && ~warnings.indexOf('no_index')) {
const indexSpec =
'".indexOn": "' +
query
.getQueryParams()
.getIndex()
.toString() +
'"';
const indexPath = query.path.toString();
warn(
`Using an unspecified index. Your data will be downloaded and ` +
`filtered on the client. Consider adding ${indexSpec} at ` +
`${indexPath} to your security rules for better performance.`
);
}
}
}
/**
* @inheritDoc
*/
refreshAuthToken(token: string) {
this.authToken_ = token;
this.log_('Auth token refreshed');
if (this.authToken_) {
this.tryAuth();
} else {
//If we're connected we want to let the server know to unauthenticate us. If we're not connected, simply delete
//the credential so we dont become authenticated next time we connect.
if (this.connected_) {
this.sendRequest('unauth', {}, () => {});
}
}
this.reduceReconnectDelayIfAdminCredential_(token);
}
/**
* @param {!string} credential
* @private
*/
private reduceReconnectDelayIfAdminCredential_(credential: string) {
// NOTE: This isn't intended to be bulletproof (a malicious developer can always just modify the client).
// Additionally, we don't bother resetting the max delay back to the default if auth fails / expires.
const isFirebaseSecret = credential && credential.length === 40;
if (isFirebaseSecret || isAdmin(credential)) {
this.log_(
'Admin auth credential detected. Reducing max reconnect time.'
);
this.maxReconnectDelay_ = RECONNECT_MAX_DELAY_FOR_ADMINS;
}
}
/**
* Attempts to authenticate with the given credentials. If the authentication attempt fails, it's triggered like
* a auth revoked (the connection is closed).
*/
tryAuth() {
Iif (this.connected_ && this.authToken_) {
const token = this.authToken_;
const authMethod = isValidFormat(token) ? 'auth' : 'gauth';
const requestData: { [k: string]: any } = { cred: token };
if (this.authOverride_ === null) {
requestData['noauth'] = true;
} else if (typeof this.authOverride_ === 'object') {
requestData['authvar'] = this.authOverride_;
}
this.sendRequest(authMethod, requestData, (res: { [k: string]: any }) => {
const status: string = res[/*status*/ 's'];
const data: string = res[/*data*/ 'd'] || 'error';
if (this.authToken_ === token) {
if (status === 'ok') {
this.invalidAuthTokenCount_ = 0;
} else {
// Triggers reconnect and force refresh for auth token
this.onAuthRevoked_(status, data);
}
}
});
}
}
/**
* @inheritDoc
*/
unlisten(query: Query, tag: number | null) {
const pathString = query.path.toString();
const queryId = query.queryIdentifier();
this.log_('Unlisten called for ' + pathString + ' ' + queryId);
assert(
query.getQueryParams().isDefault() ||
!query.getQueryParams().loadsAllData(),
'unlisten() called for non-default but complete query'
);
const listen = this.removeListen_(pathString, queryId);
if (listen && this.connected_) {
this.sendUnlisten_(pathString, queryId, query.queryObject(), tag);
}
}
private sendUnlisten_(
pathString: string,
queryId: string,
queryObj: Object,
tag: number | null
) {
this.log_('Unlisten on ' + pathString + ' for ' + queryId);
const req: { [k: string]: any } = { /*path*/ p: pathString };
const action = 'n';
// Only bother sending queryId if it's non-default.
if (tag) {
req['q'] = queryObj;
req['t'] = tag;
}
this.sendRequest(action, req);
}
/**
* @inheritDoc
*/
onDisconnectPut(
pathString: string,
data: any,
onComplete?: (a: string, b: string) => void
) {
if (this.connected_) {
this.sendOnDisconnect_('o', pathString, data, onComplete);
} else {
this.onDisconnectRequestQueue_.push({
pathString,
action: 'o',
data,
onComplete
});
}
}
/**
* @inheritDoc
*/
onDisconnectMerge(
pathString: string,
data: any,
onComplete?: (a: string, b: string) => void
) {
if (this.connected_) {
this.sendOnDisconnect_('om', pathString, data, onComplete);
} else {
this.onDisconnectRequestQueue_.push({
pathString,
action: 'om',
data,
onComplete
});
}
}
/**
* @inheritDoc
*/
onDisconnectCancel(
pathString: string,
onComplete?: (a: string, b: string) => void
) {
if (this.connected_) {
this.sendOnDisconnect_('oc', pathString, null, onComplete);
} else {
this.onDisconnectRequestQueue_.push({
pathString,
action: 'oc',
data: null,
onComplete
});
}
}
private sendOnDisconnect_(
action: string,
pathString: string,
data: any,
onComplete: (a: string, b: string) => void
) {
const request = { /*path*/ p: pathString, /*data*/ d: data };
this.log_('onDisconnect ' + action, request);
this.sendRequest(action, request, (response: { [k: string]: any }) => {
if (onComplete) {
setTimeout(function() {
onComplete(response[/*status*/ 's'], response[/* data */ 'd']);
}, Math.floor(0));
}
});
}
/**
* @inheritDoc
*/
put(
pathString: string,
data: any,
onComplete?: (a: string, b: string) => void,
hash?: string
) {
this.putInternal('p', pathString, data, onComplete, hash);
}
/**
* @inheritDoc
*/
merge(
pathString: string,
data: any,
onComplete: (a: string, b: string | null) => void,
hash?: string
) {
this.putInternal('m', pathString, data, onComplete, hash);
}
putInternal(
action: string,
pathString: string,
data: any,
onComplete: (a: string, b: string | null) => void,
hash?: string
) {
const request: { [k: string]: any } = {
/*path*/ p: pathString,
/*data*/ d: data
};
if (hash !== undefined) request[/*hash*/ 'h'] = hash;
// TODO: Only keep track of the most recent put for a given path?
this.outstandingPuts_.push({
action,
request,
onComplete
});
this.outstandingPutCount_++;
const index = this.outstandingPuts_.length - 1;
if (this.connected_) {
this.sendPut_(index);
} else {
this.log_('Buffering put: ' + pathString);
}
}
private sendPut_(index: number) {
const action = this.outstandingPuts_[index].action;
const request = this.outstandingPuts_[index].request;
const onComplete = this.outstandingPuts_[index].onComplete;
this.outstandingPuts_[index].queued = this.connected_;
this.sendRequest(action, request, (message: { [k: string]: any }) => {
this.log_(action + ' response', message);
delete this.outstandingPuts_[index];
this.outstandingPutCount_--;
// Clean up array occasionally.
if (this.outstandingPutCount_ === 0) {
this.outstandingPuts_ = [];
}
Eif (onComplete)
onComplete(message[/*status*/ 's'], message[/* data */ 'd']);
});
}
/**
* @inheritDoc
*/
reportStats(stats: { [k: string]: any }) {
// If we're not connected, we just drop the stats.
Eif (this.connected_) {
const request = { /*counters*/ c: stats };
this.log_('reportStats', request);
this.sendRequest(/*stats*/ 's', request, result => {
const status = result[/*status*/ 's'];
Iif (status !== 'ok') {
const errorReason = result[/* data */ 'd'];
this.log_('reportStats', 'Error sending stats: ' + errorReason);
}
});
}
}
/**
* @param {*} message
* @private
*/
private onDataMessage_(message: { [k: string]: any }) {
if ('r' in message) {
// this is a response
this.log_('from server: ' + stringify(message));
const reqNum = message['r'];
const onResponse = this.requestCBHash_[reqNum];
if (onResponse) {
delete this.requestCBHash_[reqNum];
onResponse(message[/*body*/ 'b']);
}
} else Iif ('error' in message) {
throw 'A server-side error has occurred: ' + message['error'];
} else Eif ('a' in message) {
// a and b are action and body, respectively
this.onDataPush_(message['a'], message['b']);
}
}
private onDataPush_(action: string, body: { [k: string]: any }) {
this.log_('handleServerMessage', action, body);
if (action === 'd')
this.onDataUpdate_(
body[/*path*/ 'p'],
body[/*data*/ 'd'],
/*isMerge*/ false,
body['t']
);
else Eif (action === 'm')
this.onDataUpdate_(
body[/*path*/ 'p'],
body[/*data*/ 'd'],
/*isMerge=*/ true,
body['t']
);
else if (action === 'c')
this.onListenRevoked_(body[/*path*/ 'p'], body[/*query*/ 'q']);
else if (action === 'ac')
this.onAuthRevoked_(
body[/*status code*/ 's'],
body[/* explanation */ 'd']
);
else if (action === 'sd') this.onSecurityDebugPacket_(body);
else
error(
'Unrecognized action received from server: ' +
stringify(action) +
'\nAre you using the latest client?'
);
}
private onReady_(timestamp: number, sessionId: string) {
this.log_('connection ready');
this.connected_ = true;
this.lastConnectionEstablishedTime_ = new Date().getTime();
this.handleTimestamp_(timestamp);
this.lastSessionId = sessionId;
if (this.firstConnection_) {
this.sendConnectStats_();
}
this.restoreState_();
this.firstConnection_ = false;
this.onConnectStatus_(true);
}
private scheduleConnect_(timeout: number) {
assert(
!this.realtime_,
"Scheduling a connect when we're already connected/ing?"
);
if (this.establishConnectionTimer_) {
clearTimeout(this.establishConnectionTimer_);
}
// NOTE: Even when timeout is 0, it's important to do a setTimeout to work around an infuriating "Security Error" in
// Firefox when trying to write to our long-polling iframe in some scenarios (e.g. Forge or our unit tests).
this.establishConnectionTimer_ = setTimeout(() => {
this.establishConnectionTimer_ = null;
this.establishConnection_();
}, Math.floor(timeout)) as any;
}
/**
* @param {boolean} visible
* @private
*/
private onVisible_(visible: boolean) {
// NOTE: Tabbing away and back to a window will defeat our reconnect backoff, but I think that's fine.
Iif (
visible &&
!this.visible_ &&
this.reconnectDelay_ === this.maxReconnectDelay_
) {
this.log_('Window became visible. Reducing delay.');
this.reconnectDelay_ = RECONNECT_MIN_DELAY;
if (!this.realtime_) {
this.scheduleConnect_(0);
}
}
this.visible_ = visible;
}
private onOnline_(online: boolean) {
Eif (online) {
this.log_('Browser went online.');
this.reconnectDelay_ = RECONNECT_MIN_DELAY;
Eif (!this.realtime_) {
this.scheduleConnect_(0);
}
} else {
this.log_('Browser went offline. Killing connection.');
if (this.realtime_) {
this.realtime_.close();
}
}
}
private onRealtimeDisconnect_() {
this.log_('data client disconnected');
this.connected_ = false;
this.realtime_ = null;
// Since we don't know if our sent transactions succeeded or not, we need to cancel them.
this.cancelSentTransactions_();
// Clear out the pending requests.
this.requestCBHash_ = {};
Iif (this.shouldReconnect_()) {
if (!this.visible_) {
this.log_("Window isn't visible. Delaying reconnect.");
this.reconnectDelay_ = this.maxReconnectDelay_;
this.lastConnectionAttemptTime_ = new Date().getTime();
} else if (this.lastConnectionEstablishedTime_) {
// If we've been connected long enough, reset reconnect delay to minimum.
const timeSinceLastConnectSucceeded =
new Date().getTime() - this.lastConnectionEstablishedTime_;
if (timeSinceLastConnectSucceeded > RECONNECT_DELAY_RESET_TIMEOUT)
this.reconnectDelay_ = RECONNECT_MIN_DELAY;
this.lastConnectionEstablishedTime_ = null;
}
const timeSinceLastConnectAttempt =
new Date().getTime() - this.lastConnectionAttemptTime_;
let reconnectDelay = Math.max(
0,
this.reconnectDelay_ - timeSinceLastConnectAttempt
);
reconnectDelay = Math.random() * reconnectDelay;
this.log_('Trying to reconnect in ' + reconnectDelay + 'ms');
this.scheduleConnect_(reconnectDelay);
// Adjust reconnect delay for next time.
this.reconnectDelay_ = Math.min(
this.maxReconnectDelay_,
this.reconnectDelay_ * RECONNECT_DELAY_MULTIPLIER
);
}
this.onConnectStatus_(false);
}
private establishConnection_() {
Eif (this.shouldReconnect_()) {
this.log_('Making a connection attempt');
this.lastConnectionAttemptTime_ = new Date().getTime();
this.lastConnectionEstablishedTime_ = null;
const onDataMessage = this.onDataMessage_.bind(this);
const onReady = this.onReady_.bind(this);
const onDisconnect = this.onRealtimeDisconnect_.bind(this);
const connId = this.id + ':' + PersistentConnection.nextConnectionId_++;
const self = this;
const lastSessionId = this.lastSessionId;
let canceled = false;
let connection: Connection | null = null;
const closeFn = function() {
Eif (connection) {
connection.close();
} else {
canceled = true;
onDisconnect();
}
};
const sendRequestFn = function(msg: Object) {
assert(
connection,
"sendRequest call when we're not connected not allowed."
);
connection.sendRequest(msg);
};
this.realtime_ = {
close: closeFn,
sendRequest: sendRequestFn
};
const forceRefresh = this.forceTokenRefresh_;
this.forceTokenRefresh_ = false;
// First fetch auth token, and establish connection after fetching the token was successful
this.authTokenProvider_
.getToken(forceRefresh)
.then(function(result) {
Eif (!canceled) {
log('getToken() completed. Creating connection.');
self.authToken_ = result && result.accessToken;
connection = new Connection(
connId,
self.repoInfo_,
onDataMessage,
onReady,
onDisconnect,
/* onKill= */ function(reason) {
warn(reason + ' (' + self.repoInfo_.toString() + ')');
self.interrupt(SERVER_KILL_INTERRUPT_REASON);
},
lastSessionId
);
} else {
log('getToken() completed but was canceled');
}
})
.then(null, function(error) {
self.log_('Failed to get token: ' + error);
if (!canceled) {
if (CONSTANTS.NODE_ADMIN) {
// This may be a critical error for the Admin Node.js SDK, so log a warning.
// But getToken() may also just have temporarily failed, so we still want to
// continue retrying.
warn(error);
}
closeFn();
}
});
}
}
/**
* @param {string} reason
*/
interrupt(reason: string) {
log('Interrupting connection for reason: ' + reason);
this.interruptReasons_[reason] = true;
if (this.realtime_) {
this.realtime_.close();
} else {
Eif (this.establishConnectionTimer_) {
clearTimeout(this.establishConnectionTimer_);
this.establishConnectionTimer_ = null;
}
Iif (this.connected_) {
this.onRealtimeDisconnect_();
}
}
}
/**
* @param {string} reason
*/
resume(reason: string) {
log('Resuming connection for reason: ' + reason);
delete this.interruptReasons_[reason];
Eif (isEmpty(this.interruptReasons_)) {
this.reconnectDelay_ = RECONNECT_MIN_DELAY;
Eif (!this.realtime_) {
this.scheduleConnect_(0);
}
}
}
private handleTimestamp_(timestamp: number) {
const delta = timestamp - new Date().getTime();
this.onServerInfoUpdate_({ serverTimeOffset: delta });
}
private cancelSentTransactions_() {
for (let i = 0; i < this.outstandingPuts_.length; i++) {
const put = this.outstandingPuts_[i];
Eif (put && /*hash*/ 'h' in put.request && put.queued) {
Eif (put.onComplete) put.onComplete('disconnect');
delete this.outstandingPuts_[i];
this.outstandingPutCount_--;
}
}
// Clean up array occasionally.
Eif (this.outstandingPutCount_ === 0) this.outstandingPuts_ = [];
}
/**
* @param {!string} pathString
* @param {Array.<*>=} query
* @private
*/
private onListenRevoked_(pathString: string, query?: any[]) {
// Remove the listen and manufacture a "permission_denied" error for the failed listen.
let queryId;
if (!query) {
queryId = 'default';
} else {
queryId = query.map(q => ObjectToUniqueKey(q)).join('$');
}
const listen = this.removeListen_(pathString, queryId);
if (listen && listen.onComplete) listen.onComplete('permission_denied');
}
/**
* @param {!string} pathString
* @param {!string} queryId
* @return {{queries:Array.<Query>, onComplete:function(string)}}
* @private
*/
private removeListen_(pathString: string, queryId: string): ListenSpec {
const normalizedPathString = new Path(pathString).toString(); // normalize path.
let listen;
Eif (this.listens_[normalizedPathString] !== undefined) {
listen = this.listens_[normalizedPathString][queryId];
delete this.listens_[normalizedPathString][queryId];
if (getCount(this.listens_[normalizedPathString]) === 0) {
delete this.listens_[normalizedPathString];
}
} else {
// all listens for this path has already been removed
listen = undefined;
}
return listen;
}
private onAuthRevoked_(statusCode: string, explanation: string) {
log('Auth token revoked: ' + statusCode + '/' + explanation);
this.authToken_ = null;
this.forceTokenRefresh_ = true;
this.realtime_.close();
if (statusCode === 'invalid_token' || statusCode === 'permission_denied') {
// We'll wait a couple times before logging the warning / increasing the
// retry period since oauth tokens will report as "invalid" if they're
// just expired. Plus there may be transient issues that resolve themselves.
this.invalidAuthTokenCount_++;
if (this.invalidAuthTokenCount_ >= INVALID_AUTH_TOKEN_THRESHOLD) {
// Set a long reconnect delay because recovery is unlikely
this.reconnectDelay_ = RECONNECT_MAX_DELAY_FOR_ADMINS;
// Notify the auth token provider that the token is invalid, which will log
// a warning
this.authTokenProvider_.notifyForInvalidToken();
}
}
}
private onSecurityDebugPacket_(body: { [k: string]: any }) {
if (this.securityDebugCallback_) {
this.securityDebugCallback_(body);
} else {
if ('msg' in body && typeof console !== 'undefined') {
console.log('FIREBASE: ' + body['msg'].replace('\n', '\nFIREBASE: '));
}
}
}
private restoreState_() {
//Re-authenticate ourselves if we have a credential stored.
this.tryAuth();
// Puts depend on having received the corresponding data update from the server before they complete, so we must
// make sure to send listens before puts.
forEach(this.listens_, (pathString: string, queries: Object) => {
forEach(queries, (key: string, listenSpec: ListenSpec) => {
this.sendListen_(listenSpec);
});
});
for (let i = 0; i < this.outstandingPuts_.length; i++) {
Eif (this.outstandingPuts_[i]) this.sendPut_(i);
}
while (this.onDisconnectRequestQueue_.length) {
const request = this.onDisconnectRequestQueue_.shift();
this.sendOnDisconnect_(
request.action,
request.pathString,
request.data,
request.onComplete
);
}
}
/**
* Sends client stats for first connection
* @private
*/
private sendConnectStats_() {
const stats: { [k: string]: number } = {};
let clientName = 'js';
Iif (CONSTANTS.NODE_ADMIN) {
clientName = 'admin_node';
} else Iif (CONSTANTS.NODE_CLIENT) {
clientName = 'node';
}
stats[
'sdk.' + clientName + '.' + firebase.SDK_VERSION.replace(/\./g, '-')
] = 1;
Iif (isMobileCordova()) {
stats['framework.cordova'] = 1;
} else Iif (isReactNative()) {
stats['framework.reactnative'] = 1;
}
this.reportStats(stats);
}
/**
* @return {boolean}
* @private
*/
private shouldReconnect_(): boolean {
const online = OnlineMonitor.getInstance().currentlyOnline();
return isEmpty(this.interruptReasons_) && online;
}
}
|