Commit With Frontend and Backend in MERN
This commit is contained in:
sanikapendurkar
499
backend/node_modules/mongodb/src/cmap/connect.ts
generated
vendored
Normal file
499
backend/node_modules/mongodb/src/cmap/connect.ts
generated
vendored
Normal file
@@ -0,0 +1,499 @@
|
||||
import type { Socket, SocketConnectOpts } from 'net';
|
||||
import * as net from 'net';
|
||||
import type { ConnectionOptions as TLSConnectionOpts, TLSSocket } from 'tls';
|
||||
import * as tls from 'tls';
|
||||
|
||||
import type { Document } from '../bson';
|
||||
import { LEGACY_HELLO_COMMAND } from '../constants';
|
||||
import { getSocks, type SocksLib } from '../deps';
|
||||
import {
|
||||
MongoCompatibilityError,
|
||||
MongoError,
|
||||
MongoErrorLabel,
|
||||
MongoInvalidArgumentError,
|
||||
MongoNetworkError,
|
||||
MongoNetworkTimeoutError,
|
||||
MongoRuntimeError,
|
||||
needsRetryableWriteLabel
|
||||
} from '../error';
|
||||
import { HostAddress, ns, promiseWithResolvers } from '../utils';
|
||||
import { AuthContext } from './auth/auth_provider';
|
||||
import { AuthMechanism } from './auth/providers';
|
||||
import {
|
||||
type CommandOptions,
|
||||
Connection,
|
||||
type ConnectionOptions,
|
||||
CryptoConnection
|
||||
} from './connection';
|
||||
import {
|
||||
MAX_SUPPORTED_SERVER_VERSION,
|
||||
MAX_SUPPORTED_WIRE_VERSION,
|
||||
MIN_SUPPORTED_SERVER_VERSION,
|
||||
MIN_SUPPORTED_WIRE_VERSION
|
||||
} from './wire_protocol/constants';
|
||||
|
||||
/** @public */
|
||||
export type Stream = Socket | TLSSocket;
|
||||
|
||||
export async function connect(options: ConnectionOptions): Promise<Connection> {
|
||||
let connection: Connection | null = null;
|
||||
try {
|
||||
const socket = await makeSocket(options);
|
||||
connection = makeConnection(options, socket);
|
||||
await performInitialHandshake(connection, options);
|
||||
return connection;
|
||||
} catch (error) {
|
||||
connection?.destroy();
|
||||
throw error;
|
||||
}
|
||||
}
|
||||
|
||||
export function makeConnection(options: ConnectionOptions, socket: Stream): Connection {
|
||||
let ConnectionType = options.connectionType ?? Connection;
|
||||
if (options.autoEncrypter) {
|
||||
ConnectionType = CryptoConnection;
|
||||
}
|
||||
|
||||
return new ConnectionType(socket, options);
|
||||
}
|
||||
|
||||
function checkSupportedServer(hello: Document, options: ConnectionOptions) {
|
||||
const maxWireVersion = Number(hello.maxWireVersion);
|
||||
const minWireVersion = Number(hello.minWireVersion);
|
||||
const serverVersionHighEnough =
|
||||
!Number.isNaN(maxWireVersion) && maxWireVersion >= MIN_SUPPORTED_WIRE_VERSION;
|
||||
const serverVersionLowEnough =
|
||||
!Number.isNaN(minWireVersion) && minWireVersion <= MAX_SUPPORTED_WIRE_VERSION;
|
||||
|
||||
if (serverVersionHighEnough) {
|
||||
if (serverVersionLowEnough) {
|
||||
return null;
|
||||
}
|
||||
|
||||
const message = `Server at ${options.hostAddress} reports minimum wire version ${JSON.stringify(
|
||||
hello.minWireVersion
|
||||
)}, but this version of the Node.js Driver requires at most ${MAX_SUPPORTED_WIRE_VERSION} (MongoDB ${MAX_SUPPORTED_SERVER_VERSION})`;
|
||||
return new MongoCompatibilityError(message);
|
||||
}
|
||||
|
||||
const message = `Server at ${options.hostAddress} reports maximum wire version ${
|
||||
JSON.stringify(hello.maxWireVersion) ?? 0
|
||||
}, but this version of the Node.js Driver requires at least ${MIN_SUPPORTED_WIRE_VERSION} (MongoDB ${MIN_SUPPORTED_SERVER_VERSION})`;
|
||||
return new MongoCompatibilityError(message);
|
||||
}
|
||||
|
||||
export async function performInitialHandshake(
|
||||
conn: Connection,
|
||||
options: ConnectionOptions
|
||||
): Promise<void> {
|
||||
const credentials = options.credentials;
|
||||
|
||||
if (credentials) {
|
||||
if (
|
||||
!(credentials.mechanism === AuthMechanism.MONGODB_DEFAULT) &&
|
||||
!options.authProviders.getOrCreateProvider(
|
||||
credentials.mechanism,
|
||||
credentials.mechanismProperties
|
||||
)
|
||||
) {
|
||||
throw new MongoInvalidArgumentError(`AuthMechanism '${credentials.mechanism}' not supported`);
|
||||
}
|
||||
}
|
||||
|
||||
const authContext = new AuthContext(conn, credentials, options);
|
||||
conn.authContext = authContext;
|
||||
|
||||
const handshakeDoc = await prepareHandshakeDocument(authContext);
|
||||
|
||||
// @ts-expect-error: TODO(NODE-5141): The options need to be filtered properly, Connection options differ from Command options
|
||||
const handshakeOptions: CommandOptions = { ...options, raw: false };
|
||||
if (typeof options.connectTimeoutMS === 'number') {
|
||||
// The handshake technically is a monitoring check, so its socket timeout should be connectTimeoutMS
|
||||
handshakeOptions.socketTimeoutMS = options.connectTimeoutMS;
|
||||
}
|
||||
|
||||
const start = new Date().getTime();
|
||||
|
||||
const response = await executeHandshake(handshakeDoc, handshakeOptions);
|
||||
|
||||
if (!('isWritablePrimary' in response)) {
|
||||
// Provide hello-style response document.
|
||||
response.isWritablePrimary = response[LEGACY_HELLO_COMMAND];
|
||||
}
|
||||
|
||||
if (response.helloOk) {
|
||||
conn.helloOk = true;
|
||||
}
|
||||
|
||||
const supportedServerErr = checkSupportedServer(response, options);
|
||||
if (supportedServerErr) {
|
||||
throw supportedServerErr;
|
||||
}
|
||||
|
||||
if (options.loadBalanced) {
|
||||
if (!response.serviceId) {
|
||||
throw new MongoCompatibilityError(
|
||||
'Driver attempted to initialize in load balancing mode, ' +
|
||||
'but the server does not support this mode.'
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
// NOTE: This is metadata attached to the connection while porting away from
|
||||
// handshake being done in the `Server` class. Likely, it should be
|
||||
// relocated, or at very least restructured.
|
||||
conn.hello = response;
|
||||
conn.lastHelloMS = new Date().getTime() - start;
|
||||
|
||||
if (!response.arbiterOnly && credentials) {
|
||||
// store the response on auth context
|
||||
authContext.response = response;
|
||||
|
||||
const resolvedCredentials = credentials.resolveAuthMechanism(response);
|
||||
const provider = options.authProviders.getOrCreateProvider(
|
||||
resolvedCredentials.mechanism,
|
||||
resolvedCredentials.mechanismProperties
|
||||
);
|
||||
if (!provider) {
|
||||
throw new MongoInvalidArgumentError(
|
||||
`No AuthProvider for ${resolvedCredentials.mechanism} defined.`
|
||||
);
|
||||
}
|
||||
|
||||
try {
|
||||
await provider.auth(authContext);
|
||||
} catch (error) {
|
||||
if (error instanceof MongoError) {
|
||||
error.addErrorLabel(MongoErrorLabel.HandshakeError);
|
||||
if (needsRetryableWriteLabel(error, response.maxWireVersion, conn.description.type)) {
|
||||
error.addErrorLabel(MongoErrorLabel.RetryableWriteError);
|
||||
}
|
||||
}
|
||||
throw error;
|
||||
}
|
||||
}
|
||||
|
||||
// Connection establishment is socket creation (tcp handshake, tls handshake, MongoDB handshake (saslStart, saslContinue))
|
||||
// Once connection is established, command logging can log events (if enabled)
|
||||
conn.established = true;
|
||||
|
||||
async function executeHandshake(handshakeDoc: Document, handshakeOptions: CommandOptions) {
|
||||
try {
|
||||
const handshakeResponse = await conn.command(
|
||||
ns('admin.$cmd'),
|
||||
handshakeDoc,
|
||||
handshakeOptions
|
||||
);
|
||||
return handshakeResponse;
|
||||
} catch (error) {
|
||||
if (error instanceof MongoError) {
|
||||
error.addErrorLabel(MongoErrorLabel.HandshakeError);
|
||||
}
|
||||
throw error;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* HandshakeDocument used during authentication.
|
||||
* @internal
|
||||
*/
|
||||
export interface HandshakeDocument extends Document {
|
||||
/**
|
||||
* @deprecated Use hello instead
|
||||
*/
|
||||
ismaster?: boolean;
|
||||
hello?: boolean;
|
||||
helloOk?: boolean;
|
||||
client: Document;
|
||||
compression: string[];
|
||||
saslSupportedMechs?: string;
|
||||
loadBalanced?: boolean;
|
||||
}
|
||||
|
||||
/**
|
||||
* @internal
|
||||
*
|
||||
* This function is only exposed for testing purposes.
|
||||
*/
|
||||
export async function prepareHandshakeDocument(
|
||||
authContext: AuthContext
|
||||
): Promise<HandshakeDocument> {
|
||||
const options = authContext.options;
|
||||
const compressors = options.compressors ? options.compressors : [];
|
||||
const { serverApi } = authContext.connection;
|
||||
const clientMetadata: Document = await options.extendedMetadata;
|
||||
|
||||
const handshakeDoc: HandshakeDocument = {
|
||||
[serverApi?.version || options.loadBalanced === true ? 'hello' : LEGACY_HELLO_COMMAND]: 1,
|
||||
helloOk: true,
|
||||
client: clientMetadata,
|
||||
compression: compressors
|
||||
};
|
||||
|
||||
if (options.loadBalanced === true) {
|
||||
handshakeDoc.loadBalanced = true;
|
||||
}
|
||||
|
||||
const credentials = authContext.credentials;
|
||||
if (credentials) {
|
||||
if (credentials.mechanism === AuthMechanism.MONGODB_DEFAULT && credentials.username) {
|
||||
handshakeDoc.saslSupportedMechs = `${credentials.source}.${credentials.username}`;
|
||||
|
||||
const provider = authContext.options.authProviders.getOrCreateProvider(
|
||||
AuthMechanism.MONGODB_SCRAM_SHA256,
|
||||
credentials.mechanismProperties
|
||||
);
|
||||
if (!provider) {
|
||||
// This auth mechanism is always present.
|
||||
throw new MongoInvalidArgumentError(
|
||||
`No AuthProvider for ${AuthMechanism.MONGODB_SCRAM_SHA256} defined.`
|
||||
);
|
||||
}
|
||||
return await provider.prepare(handshakeDoc, authContext);
|
||||
}
|
||||
const provider = authContext.options.authProviders.getOrCreateProvider(
|
||||
credentials.mechanism,
|
||||
credentials.mechanismProperties
|
||||
);
|
||||
if (!provider) {
|
||||
throw new MongoInvalidArgumentError(`No AuthProvider for ${credentials.mechanism} defined.`);
|
||||
}
|
||||
return await provider.prepare(handshakeDoc, authContext);
|
||||
}
|
||||
return handshakeDoc;
|
||||
}
|
||||
|
||||
/** @public */
|
||||
export const LEGAL_TLS_SOCKET_OPTIONS = [
|
||||
'allowPartialTrustChain',
|
||||
'ALPNProtocols',
|
||||
'ca',
|
||||
'cert',
|
||||
'checkServerIdentity',
|
||||
'ciphers',
|
||||
'crl',
|
||||
'ecdhCurve',
|
||||
'key',
|
||||
'minDHSize',
|
||||
'passphrase',
|
||||
'pfx',
|
||||
'rejectUnauthorized',
|
||||
'secureContext',
|
||||
'secureProtocol',
|
||||
'servername',
|
||||
'session'
|
||||
] as const;
|
||||
|
||||
/** @public */
|
||||
export const LEGAL_TCP_SOCKET_OPTIONS = [
|
||||
'autoSelectFamily',
|
||||
'autoSelectFamilyAttemptTimeout',
|
||||
'family',
|
||||
'hints',
|
||||
'localAddress',
|
||||
'localPort',
|
||||
'lookup'
|
||||
] as const;
|
||||
|
||||
function parseConnectOptions(options: ConnectionOptions): SocketConnectOpts {
|
||||
const hostAddress = options.hostAddress;
|
||||
if (!hostAddress) throw new MongoInvalidArgumentError('Option "hostAddress" is required');
|
||||
|
||||
const result: Partial<net.TcpNetConnectOpts & net.IpcNetConnectOpts> = {};
|
||||
for (const name of LEGAL_TCP_SOCKET_OPTIONS) {
|
||||
if (options[name] != null) {
|
||||
(result as Document)[name] = options[name];
|
||||
}
|
||||
}
|
||||
|
||||
if (typeof hostAddress.socketPath === 'string') {
|
||||
result.path = hostAddress.socketPath;
|
||||
return result as net.IpcNetConnectOpts;
|
||||
} else if (typeof hostAddress.host === 'string') {
|
||||
result.host = hostAddress.host;
|
||||
result.port = hostAddress.port;
|
||||
return result as net.TcpNetConnectOpts;
|
||||
} else {
|
||||
// This should never happen since we set up HostAddresses
|
||||
// But if we don't throw here the socket could hang until timeout
|
||||
// TODO(NODE-3483)
|
||||
throw new MongoRuntimeError(`Unexpected HostAddress ${JSON.stringify(hostAddress)}`);
|
||||
}
|
||||
}
|
||||
|
||||
type MakeConnectionOptions = ConnectionOptions & { existingSocket?: Stream };
|
||||
|
||||
function parseSslOptions(options: MakeConnectionOptions): TLSConnectionOpts {
|
||||
const result: TLSConnectionOpts = parseConnectOptions(options);
|
||||
// Merge in valid SSL options
|
||||
for (const name of LEGAL_TLS_SOCKET_OPTIONS) {
|
||||
if (options[name] != null) {
|
||||
(result as Document)[name] = options[name];
|
||||
}
|
||||
}
|
||||
|
||||
if (options.existingSocket) {
|
||||
result.socket = options.existingSocket;
|
||||
}
|
||||
|
||||
// Set default sni servername to be the same as host
|
||||
if (result.servername == null && result.host && !net.isIP(result.host)) {
|
||||
result.servername = result.host;
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
export async function makeSocket(options: MakeConnectionOptions): Promise<Stream> {
|
||||
const useTLS = options.tls ?? false;
|
||||
const noDelay = options.noDelay ?? true;
|
||||
const connectTimeoutMS = options.connectTimeoutMS ?? 30000;
|
||||
const existingSocket = options.existingSocket;
|
||||
|
||||
let socket: Stream;
|
||||
|
||||
if (options.proxyHost != null) {
|
||||
// Currently, only Socks5 is supported.
|
||||
return await makeSocks5Connection({
|
||||
...options,
|
||||
connectTimeoutMS // Should always be present for Socks5
|
||||
});
|
||||
}
|
||||
|
||||
if (useTLS) {
|
||||
const tlsSocket = tls.connect(parseSslOptions(options));
|
||||
if (typeof tlsSocket.disableRenegotiation === 'function') {
|
||||
tlsSocket.disableRenegotiation();
|
||||
}
|
||||
socket = tlsSocket;
|
||||
} else if (existingSocket) {
|
||||
// In the TLS case, parseSslOptions() sets options.socket to existingSocket,
|
||||
// so we only need to handle the non-TLS case here (where existingSocket
|
||||
// gives us all we need out of the box).
|
||||
socket = existingSocket;
|
||||
} else {
|
||||
socket = net.createConnection(parseConnectOptions(options));
|
||||
}
|
||||
|
||||
socket.setKeepAlive(true, 300000);
|
||||
socket.setTimeout(connectTimeoutMS);
|
||||
socket.setNoDelay(noDelay);
|
||||
|
||||
let cancellationHandler: ((err: Error) => void) | null = null;
|
||||
|
||||
const { promise: connectedSocket, resolve, reject } = promiseWithResolvers<Stream>();
|
||||
if (existingSocket) {
|
||||
resolve(socket);
|
||||
} else {
|
||||
const start = performance.now();
|
||||
const connectEvent = useTLS ? 'secureConnect' : 'connect';
|
||||
socket
|
||||
.once(connectEvent, () => resolve(socket))
|
||||
.once('error', cause =>
|
||||
reject(new MongoNetworkError(MongoError.buildErrorMessage(cause), { cause }))
|
||||
)
|
||||
.once('timeout', () => {
|
||||
reject(
|
||||
new MongoNetworkTimeoutError(
|
||||
`Socket '${connectEvent}' timed out after ${(performance.now() - start) | 0}ms (connectTimeoutMS: ${connectTimeoutMS})`
|
||||
)
|
||||
);
|
||||
})
|
||||
.once('close', () =>
|
||||
reject(
|
||||
new MongoNetworkError(
|
||||
`Socket closed after ${(performance.now() - start) | 0} during connection establishment`
|
||||
)
|
||||
)
|
||||
);
|
||||
|
||||
if (options.cancellationToken != null) {
|
||||
cancellationHandler = () =>
|
||||
reject(
|
||||
new MongoNetworkError(
|
||||
`Socket connection establishment was cancelled after ${(performance.now() - start) | 0}`
|
||||
)
|
||||
);
|
||||
options.cancellationToken.once('cancel', cancellationHandler);
|
||||
}
|
||||
}
|
||||
|
||||
try {
|
||||
socket = await connectedSocket;
|
||||
return socket;
|
||||
} catch (error) {
|
||||
socket.destroy();
|
||||
throw error;
|
||||
} finally {
|
||||
socket.setTimeout(0);
|
||||
socket.removeAllListeners();
|
||||
if (cancellationHandler != null) {
|
||||
options.cancellationToken?.removeListener('cancel', cancellationHandler);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
let socks: SocksLib | null = null;
|
||||
function loadSocks() {
|
||||
if (socks == null) {
|
||||
const socksImport = getSocks();
|
||||
if ('kModuleError' in socksImport) {
|
||||
throw socksImport.kModuleError;
|
||||
}
|
||||
socks = socksImport;
|
||||
}
|
||||
return socks;
|
||||
}
|
||||
|
||||
async function makeSocks5Connection(options: MakeConnectionOptions): Promise<Stream> {
|
||||
const hostAddress = HostAddress.fromHostPort(
|
||||
options.proxyHost ?? '', // proxyHost is guaranteed to set here
|
||||
options.proxyPort ?? 1080
|
||||
);
|
||||
|
||||
// First, connect to the proxy server itself:
|
||||
const rawSocket = await makeSocket({
|
||||
...options,
|
||||
hostAddress,
|
||||
tls: false,
|
||||
proxyHost: undefined
|
||||
});
|
||||
|
||||
const destination = parseConnectOptions(options) as net.TcpNetConnectOpts;
|
||||
if (typeof destination.host !== 'string' || typeof destination.port !== 'number') {
|
||||
throw new MongoInvalidArgumentError('Can only make Socks5 connections to TCP hosts');
|
||||
}
|
||||
|
||||
socks ??= loadSocks();
|
||||
|
||||
let existingSocket: Stream;
|
||||
|
||||
try {
|
||||
// Then, establish the Socks5 proxy connection:
|
||||
const connection = await socks.SocksClient.createConnection({
|
||||
existing_socket: rawSocket,
|
||||
timeout: options.connectTimeoutMS,
|
||||
command: 'connect',
|
||||
destination: {
|
||||
host: destination.host,
|
||||
port: destination.port
|
||||
},
|
||||
proxy: {
|
||||
// host and port are ignored because we pass existing_socket
|
||||
host: 'iLoveJavaScript',
|
||||
port: 0,
|
||||
type: 5,
|
||||
userId: options.proxyUsername || undefined,
|
||||
password: options.proxyPassword || undefined
|
||||
}
|
||||
});
|
||||
existingSocket = connection.socket;
|
||||
} catch (cause) {
|
||||
throw new MongoNetworkError(MongoError.buildErrorMessage(cause), { cause });
|
||||
}
|
||||
|
||||
// Finally, now treat the resulting duplex stream as the
|
||||
// socket over which we send and receive wire protocol messages:
|
||||
return await makeSocket({ ...options, existingSocket, proxyHost: undefined });
|
||||
}
|
||||
Reference in New Issue
Block a user