mirror of https://github.com/eleith/emailjs.git
889 lines
20 KiB
JavaScript
889 lines
20 KiB
JavaScript
const { Socket } = require('net');
|
|
const { createHmac } = require('crypto');
|
|
const { hostname } = require('os');
|
|
const { connect, createSecureContext, TLSSocket } = require('tls');
|
|
const { EventEmitter } = require('events');
|
|
|
|
const SMTPResponse = require('./response');
|
|
const SMTPError = require('./error');
|
|
|
|
/**
|
|
* @readonly
|
|
* @type {5000}
|
|
*/
|
|
const TIMEOUT = 5000;
|
|
|
|
/**
|
|
* @readonly
|
|
* @type {25}
|
|
*/
|
|
const SMTP_PORT = 25;
|
|
|
|
/**
|
|
* @readonly
|
|
* @type {465}
|
|
*/
|
|
const SMTP_SSL_PORT = 465;
|
|
|
|
/**
|
|
* @readonly
|
|
* @type {587}
|
|
*/
|
|
const SMTP_TLS_PORT = 587;
|
|
|
|
/**
|
|
* @readonly
|
|
* @type {'\r\n'}
|
|
*/
|
|
const CRLF = '\r\n';
|
|
|
|
/**
|
|
* @readonly
|
|
* @enum
|
|
*/
|
|
const AUTH_METHODS = {
|
|
PLAIN: /** @type {'PLAIN'} */ ('PLAIN'),
|
|
CRAM_MD5: /** @type {'CRAM-MD5'} */ ('CRAM-MD5'),
|
|
LOGIN: /** @type {'LOGIN'} */ ('LOGIN'),
|
|
XOAUTH2: /** @type {'XOAUTH2'} */ ('XOAUTH2'),
|
|
};
|
|
|
|
/**
|
|
* @readonly
|
|
* @enum
|
|
*/
|
|
const SMTPState = {
|
|
NOTCONNECTED: /** @type {0} */ (0),
|
|
CONNECTING: /** @type {1} */ (1),
|
|
CONNECTED: /** @type {2} */ (2),
|
|
};
|
|
|
|
/**
|
|
* @type {0 | 1}
|
|
*/
|
|
let DEBUG = 0;
|
|
|
|
/**
|
|
* @param {...any} args the message(s) to log
|
|
* @returns {void}
|
|
*/
|
|
const log = (...args) => {
|
|
if (DEBUG === 1) {
|
|
args.forEach(d =>
|
|
console.log(
|
|
typeof d === 'object'
|
|
? d instanceof Error
|
|
? d.message
|
|
: JSON.stringify(d)
|
|
: d
|
|
)
|
|
);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* @param {function(...*): void} callback the function to call
|
|
* @param {...*} args the arguments to apply to the function
|
|
* @returns {void}
|
|
*/
|
|
const caller = (callback, ...args) => {
|
|
if (typeof callback === 'function') {
|
|
callback.apply(null, args);
|
|
}
|
|
};
|
|
|
|
class SMTP extends EventEmitter {
|
|
/**
|
|
* SMTP class written using python's (2.7) smtplib.py as a base
|
|
*
|
|
* @typedef {Object} SMTPSocketOptions
|
|
* @property {string} key
|
|
* @property {string} ca
|
|
* @property {string} cert
|
|
*
|
|
* @typedef {Object} SMTPOptions
|
|
* @property {number} [timeout]
|
|
* @property {string} [user]
|
|
* @property {string} [password]
|
|
* @property {string} [domain]
|
|
* @property {string} [host]
|
|
* @property {number} [port]
|
|
* @property {boolean|SMTPSocketOptions} [ssl]
|
|
* @property {boolean|SMTPSocketOptions} [tls]
|
|
* @property {string[]} [authentication]
|
|
* @property {function(...any): void} [logger]
|
|
*
|
|
* @constructor
|
|
* @param {SMTPOptions} [options] instance options
|
|
*/
|
|
constructor({
|
|
timeout,
|
|
host,
|
|
user,
|
|
password,
|
|
domain,
|
|
port,
|
|
ssl,
|
|
tls,
|
|
logger,
|
|
authentication,
|
|
} = {}) {
|
|
super();
|
|
|
|
/**
|
|
* @private
|
|
* @type {0 | 1 | 2}
|
|
*/
|
|
this._state = SMTPState.NOTCONNECTED;
|
|
|
|
/**
|
|
* @private
|
|
* @type {boolean}
|
|
*/
|
|
this._secure = false;
|
|
|
|
/**
|
|
* @type {Socket|TLSSocket}
|
|
*/
|
|
this.sock = null;
|
|
|
|
/**
|
|
* @type {{ [i: string]: string | boolean }}
|
|
*/
|
|
this.features = null;
|
|
|
|
/**
|
|
* @type {SMTPResponse.SMTPResponse}
|
|
*/
|
|
this.monitor = null;
|
|
|
|
/**
|
|
* @type {string[]}
|
|
*/
|
|
this.authentication = Array.isArray(authentication)
|
|
? authentication
|
|
: [
|
|
AUTH_METHODS.CRAM_MD5,
|
|
AUTH_METHODS.LOGIN,
|
|
AUTH_METHODS.PLAIN,
|
|
AUTH_METHODS.XOAUTH2,
|
|
];
|
|
|
|
/**
|
|
* @type {number} }
|
|
*/
|
|
this.timeout = typeof timeout === 'number' ? timeout : TIMEOUT;
|
|
|
|
/**
|
|
* @type {string} }
|
|
*/
|
|
this.domain = typeof domain === 'string' ? domain : hostname();
|
|
|
|
/**
|
|
* @type {string} }
|
|
*/
|
|
this.host = typeof host === 'string' ? host : 'localhost';
|
|
|
|
/**
|
|
* @type {boolean|SMTPSocketOptions}
|
|
*/
|
|
this.ssl =
|
|
ssl != null &&
|
|
(typeof ssl === 'boolean' ||
|
|
(typeof ssl === 'object' && Array.isArray(ssl) === false))
|
|
? ssl
|
|
: false;
|
|
|
|
/**
|
|
* @type {boolean|SMTPSocketOptions}
|
|
*/
|
|
this.tls =
|
|
tls != null &&
|
|
(typeof tls === 'boolean' ||
|
|
(typeof tls === 'object' && Array.isArray(tls) === false))
|
|
? tls
|
|
: false;
|
|
|
|
/**
|
|
* @type {number}
|
|
*/
|
|
this.port = port || (ssl ? SMTP_SSL_PORT : tls ? SMTP_TLS_PORT : SMTP_PORT);
|
|
|
|
/**
|
|
* @type {boolean}
|
|
*/
|
|
this.loggedin = user && password ? false : true;
|
|
|
|
// keep these strings hidden when quicky debugging/logging
|
|
this.user = /** @returns {string} */ () => user;
|
|
this.password = /** @returns {string} */ () => password;
|
|
|
|
this.log = typeof logger === 'function' ? logger : log;
|
|
}
|
|
|
|
/**
|
|
* @param {0 | 1} level -
|
|
* @returns {void}
|
|
*/
|
|
debug(level) {
|
|
DEBUG = level;
|
|
}
|
|
|
|
/**
|
|
* @returns {number} the current state
|
|
*/
|
|
state() {
|
|
return this._state;
|
|
}
|
|
|
|
/**
|
|
* @returns {boolean} whether or not the instance is authorized
|
|
*/
|
|
authorized() {
|
|
return this.loggedin;
|
|
}
|
|
|
|
/**
|
|
* @typedef {Object} ConnectOptions
|
|
* @property {boolean} [ssl]
|
|
*
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @param {number} [port] the port to use for the connection
|
|
* @param {string} [host] the hostname to use for the connection
|
|
* @param {ConnectOptions} [options={}] the options
|
|
* @returns {void}
|
|
*/
|
|
connect(callback, port = this.port, host = this.host, options = {}) {
|
|
this.port = port;
|
|
this.host = host;
|
|
this.ssl = options.ssl || this.ssl;
|
|
|
|
if (this._state !== SMTPState.NOTCONNECTED) {
|
|
this.quit(() =>
|
|
this.connect(
|
|
callback,
|
|
port,
|
|
host,
|
|
options
|
|
)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @returns {void}
|
|
*/
|
|
const connected = () => {
|
|
this.log(`connected: ${this.host}:${this.port}`);
|
|
|
|
if (this.ssl && !this.tls) {
|
|
// if key/ca/cert was passed in, check if connection is authorized
|
|
if (
|
|
typeof this.ssl !== 'boolean' &&
|
|
this.sock instanceof TLSSocket &&
|
|
!this.sock.authorized
|
|
) {
|
|
this.close(true);
|
|
caller(
|
|
callback,
|
|
SMTPError(
|
|
'could not establish an ssl connection',
|
|
SMTPError.CONNECTIONAUTH
|
|
)
|
|
);
|
|
} else {
|
|
this._secure = true;
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* @param {Error} err err
|
|
* @returns {void}
|
|
*/
|
|
const connectedErrBack = err => {
|
|
if (!err) {
|
|
connected();
|
|
} else {
|
|
this.close(true);
|
|
this.log(err);
|
|
caller(
|
|
callback,
|
|
SMTPError('could not connect', SMTPError.COULDNOTCONNECT, err)
|
|
);
|
|
}
|
|
};
|
|
|
|
const response = (err, msg) => {
|
|
if (err) {
|
|
if (this._state === SMTPState.NOTCONNECTED && !this.sock) {
|
|
return;
|
|
}
|
|
this.close(true);
|
|
caller(callback, err);
|
|
} else if (msg.code == '220') {
|
|
this.log(msg.data);
|
|
|
|
// might happen first, so no need to wait on connected()
|
|
this._state = SMTPState.CONNECTED;
|
|
caller(callback, null, msg.data);
|
|
} else {
|
|
this.log(`response (data): ${msg.data}`);
|
|
this.quit(() => {
|
|
caller(
|
|
callback,
|
|
SMTPError(
|
|
'bad response on connection',
|
|
SMTPError.BADRESPONSE,
|
|
err,
|
|
msg.data
|
|
)
|
|
);
|
|
});
|
|
}
|
|
};
|
|
|
|
this._state = SMTPState.CONNECTING;
|
|
this.log(`connecting: ${this.host}:${this.port}`);
|
|
|
|
if (this.ssl) {
|
|
this.sock = connect(
|
|
this.port,
|
|
this.host,
|
|
typeof this.ssl === 'object' ? this.ssl : {},
|
|
connected
|
|
);
|
|
} else {
|
|
this.sock = new Socket();
|
|
this.sock.connect(
|
|
this.port,
|
|
this.host,
|
|
connectedErrBack
|
|
);
|
|
}
|
|
|
|
this.monitor = SMTPResponse.monitor(this.sock, this.timeout, () =>
|
|
this.close(true)
|
|
);
|
|
this.sock.once('response', response);
|
|
this.sock.once('error', response); // the socket could reset or throw, so let's handle it and let the user know
|
|
}
|
|
|
|
/**
|
|
* @param {string} str the string to send
|
|
* @param {*} callback function to call after response
|
|
* @returns {void}
|
|
*/
|
|
send(str, callback) {
|
|
if (this.sock && this._state === SMTPState.CONNECTED) {
|
|
this.log(str);
|
|
|
|
this.sock.once('response', (err, msg) => {
|
|
if (err) {
|
|
caller(callback, err);
|
|
} else {
|
|
this.log(msg.data);
|
|
caller(callback, null, msg);
|
|
}
|
|
});
|
|
this.sock.write(str);
|
|
} else {
|
|
this.close(true);
|
|
caller(
|
|
callback,
|
|
SMTPError('no connection has been established', SMTPError.NOCONNECTION)
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {string} cmd command to issue
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @param {(number[] | number)} [codes=[250]] array codes
|
|
* @returns {void}
|
|
*/
|
|
command(cmd, callback, codes = [250]) {
|
|
const codesArray = Array.isArray(codes)
|
|
? codes
|
|
: typeof codes === 'number'
|
|
? [codes]
|
|
: [250];
|
|
|
|
const response = (err, msg) => {
|
|
if (err) {
|
|
caller(callback, err);
|
|
} else {
|
|
if (codesArray.indexOf(Number(msg.code)) !== -1) {
|
|
caller(callback, err, msg.data, msg.message);
|
|
} else {
|
|
const suffix = msg.message ? `: ${msg.message}` : '';
|
|
const errorMessage = `bad response on command '${
|
|
cmd.split(' ')[0]
|
|
}'${suffix}`;
|
|
caller(
|
|
callback,
|
|
SMTPError(errorMessage, SMTPError.BADRESPONSE, null, msg.data)
|
|
);
|
|
}
|
|
}
|
|
};
|
|
|
|
this.send(cmd + CRLF, response);
|
|
}
|
|
|
|
/**
|
|
* SMTP 'helo' command.
|
|
*
|
|
* Hostname to send for self command defaults to the FQDN of the local
|
|
* host.
|
|
*
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @param {string} domain the domain to associate with the 'helo' request
|
|
* @returns {void}
|
|
*/
|
|
helo(callback, domain) {
|
|
this.command(`helo ${domain || this.domain}`, (err, data) => {
|
|
if (err) {
|
|
caller(callback, err);
|
|
} else {
|
|
this.parse_smtp_features(data);
|
|
caller(callback, err, data);
|
|
}
|
|
});
|
|
}
|
|
|
|
/**
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @returns {void}
|
|
*/
|
|
starttls(callback) {
|
|
const response = (err, msg) => {
|
|
if (err) {
|
|
err.message += ' while establishing a starttls session';
|
|
caller(callback, err);
|
|
} else {
|
|
const secureContext = createSecureContext(
|
|
typeof this.tls === 'object' ? this.tls : {}
|
|
);
|
|
const secureSocket = new TLSSocket(this.sock, { secureContext });
|
|
|
|
secureSocket.on('error', err => {
|
|
this.close(true);
|
|
caller(callback, err);
|
|
});
|
|
|
|
this._secure = true;
|
|
this.sock = secureSocket;
|
|
|
|
SMTPResponse.monitor(this.sock, this.timeout, () => this.close(true));
|
|
caller(callback, msg.data);
|
|
}
|
|
};
|
|
|
|
this.command('starttls', response, [220]);
|
|
}
|
|
|
|
/**
|
|
* @param {string} data the string to parse for features
|
|
* @returns {void}
|
|
*/
|
|
parse_smtp_features(data) {
|
|
// According to RFC1869 some (badly written)
|
|
// MTA's will disconnect on an ehlo. Toss an exception if
|
|
// that happens -ddm
|
|
|
|
data.split('\n').forEach(ext => {
|
|
const parse = ext.match(/^(?:\d+[-=]?)\s*?([^\s]+)(?:\s+(.*)\s*?)?$/);
|
|
|
|
// To be able to communicate with as many SMTP servers as possible,
|
|
// we have to take the old-style auth advertisement into account,
|
|
// because:
|
|
// 1) Else our SMTP feature parser gets confused.
|
|
// 2) There are some servers that only advertise the auth methods we
|
|
// support using the old style.
|
|
|
|
if (parse != null) {
|
|
// RFC 1869 requires a space between ehlo keyword and parameters.
|
|
// It's actually stricter, in that only spaces are allowed between
|
|
// parameters, but were not going to check for that here. Note
|
|
// that the space isn't present if there are no parameters.
|
|
this.features[parse[1].toLowerCase()] = parse[2] || true;
|
|
}
|
|
});
|
|
}
|
|
|
|
/**
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @param {string} domain the domain to associate with the 'ehlo' request
|
|
* @returns {void}
|
|
*/
|
|
ehlo(callback, domain) {
|
|
this.features = {};
|
|
this.command(`ehlo ${domain || this.domain}`, (err, data) => {
|
|
if (err) {
|
|
caller(callback, err);
|
|
} else {
|
|
this.parse_smtp_features(data);
|
|
|
|
if (this.tls && !this._secure) {
|
|
this.starttls(() => this.ehlo(callback, domain));
|
|
} else {
|
|
caller(callback, err, data);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
/**
|
|
* @param {string} opt the features keyname to check
|
|
* @returns {boolean} whether the extension exists
|
|
*/
|
|
has_extn(opt) {
|
|
return this.features[opt.toLowerCase()] === undefined;
|
|
}
|
|
|
|
/**
|
|
* SMTP 'help' command, returns text from the server
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @param {string} domain the domain to associate with the 'help' request
|
|
* @returns {void}
|
|
*/
|
|
help(callback, domain) {
|
|
this.command(domain ? `help ${domain}` : 'help', callback, [211, 214]);
|
|
}
|
|
|
|
/**
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @returns {void}
|
|
*/
|
|
rset(callback) {
|
|
this.command('rset', callback);
|
|
}
|
|
|
|
/**
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @returns {void}
|
|
*/
|
|
noop(callback) {
|
|
this.send('noop', callback);
|
|
}
|
|
|
|
/**
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @param {string} from the sender
|
|
* @returns {void}
|
|
*/
|
|
mail(callback, from) {
|
|
this.command(`mail FROM:${from}`, callback);
|
|
}
|
|
|
|
/**
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @param {string} to the receiver
|
|
* @returns {void}
|
|
*/
|
|
rcpt(callback, to) {
|
|
this.command(`RCPT TO:${to}`, callback, [250, 251]);
|
|
}
|
|
|
|
/**
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @returns {void}
|
|
*/
|
|
data(callback) {
|
|
this.command('data', callback, [354]);
|
|
}
|
|
|
|
/**
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @returns {void}
|
|
*/
|
|
data_end(callback) {
|
|
this.command(`${CRLF}.`, callback);
|
|
}
|
|
|
|
/**
|
|
* @param {string} data the message to send
|
|
* @returns {void}
|
|
*/
|
|
message(data) {
|
|
this.log(data);
|
|
this.sock.write(data);
|
|
}
|
|
|
|
/**
|
|
* SMTP 'verify' command -- checks for address validity.
|
|
*
|
|
* @param {string} address the address to validate
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @returns {void}
|
|
*/
|
|
verify(address, callback) {
|
|
this.command(`vrfy ${address}`, callback, [250, 251, 252]);
|
|
}
|
|
|
|
/**
|
|
* SMTP 'expn' command -- expands a mailing list.
|
|
*
|
|
* @param {string} address the mailing list to expand
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @returns {void}
|
|
*/
|
|
expn(address, callback) {
|
|
this.command(`expn ${address}`, callback);
|
|
}
|
|
|
|
/**
|
|
* Calls this.ehlo() and, if an error occurs, this.helo().
|
|
*
|
|
* If there has been no previous EHLO or HELO command self session, self
|
|
* method tries ESMTP EHLO first.
|
|
*
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @param {string} [domain] the domain to associate with the command
|
|
* @returns {void}
|
|
*/
|
|
ehlo_or_helo_if_needed(callback, domain) {
|
|
// is this code callable...?
|
|
if (!this.features) {
|
|
const response = (err, data) => caller(callback, err, data);
|
|
this.ehlo((err, data) => {
|
|
if (err) {
|
|
this.helo(response, domain);
|
|
} else {
|
|
caller(callback, err, data);
|
|
}
|
|
}, domain);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Log in on an SMTP server that requires authentication.
|
|
*
|
|
* If there has been no previous EHLO or HELO command self session, self
|
|
* method tries ESMTP EHLO first.
|
|
*
|
|
* This method will return normally if the authentication was successful.
|
|
*
|
|
* @param {function(...*): void} callback function to call after response
|
|
* @param {string} [user] the username to authenticate with
|
|
* @param {string} [password] the password for the authentication
|
|
* @param {{ method: string, domain: string }} [options] login options
|
|
* @returns {void}
|
|
*/
|
|
login(callback, user, password, options) {
|
|
const login = {
|
|
user: user ? () => user : this.user,
|
|
password: password ? () => password : this.password,
|
|
method: options && options.method ? options.method.toUpperCase() : '',
|
|
};
|
|
|
|
const domain = options && options.domain ? options.domain : this.domain;
|
|
|
|
const initiate = (err, data) => {
|
|
if (err) {
|
|
caller(callback, err);
|
|
return;
|
|
}
|
|
|
|
let method = null;
|
|
|
|
/**
|
|
* @param {string} challenge challenge
|
|
* @returns {string} base64 cram hash
|
|
*/
|
|
const encode_cram_md5 = challenge => {
|
|
const hmac = createHmac('md5', login.password());
|
|
hmac.update(Buffer.from(challenge, 'base64').toString('ascii'));
|
|
return Buffer.from(`${login.user()} ${hmac.digest('hex')}`).toString(
|
|
'base64'
|
|
);
|
|
};
|
|
|
|
/**
|
|
* @returns {string} base64 login/password
|
|
*/
|
|
const encode_plain = () =>
|
|
Buffer.from(`\u0000${login.user()}\u0000${login.password()}`).toString(
|
|
'base64'
|
|
);
|
|
|
|
/**
|
|
* @see https://developers.google.com/gmail/xoauth2_protocol
|
|
* @returns {string} base64 xoauth2 auth token
|
|
*/
|
|
const encode_xoauth2 = () =>
|
|
Buffer.from(
|
|
`user=${login.user()}\u0001auth=Bearer ${login.password()}\u0001\u0001`
|
|
).toString('base64');
|
|
|
|
// List of authentication methods we support: from preferred to
|
|
// less preferred methods.
|
|
if (!method) {
|
|
const preferred = this.authentication;
|
|
let auth = '';
|
|
|
|
if (this.features && this.features.auth) {
|
|
if (typeof this.features.auth === 'string') {
|
|
auth = this.features.auth;
|
|
}
|
|
}
|
|
|
|
for (let i = 0; i < preferred.length; i++) {
|
|
if (auth.includes(preferred[i])) {
|
|
method = preferred[i];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* handle bad responses from command differently
|
|
* @param {Error} err err
|
|
* @param {*} data data
|
|
* @returns {void}
|
|
*/
|
|
const failed = (err, data) => {
|
|
this.loggedin = false;
|
|
this.close(); // if auth is bad, close the connection, it won't get better by itself
|
|
caller(
|
|
callback,
|
|
SMTPError('authorization.failed', SMTPError.AUTHFAILED, err, data)
|
|
);
|
|
};
|
|
|
|
/**
|
|
* @param {Error} err err
|
|
* @param {*} data data
|
|
* @returns {void}
|
|
*/
|
|
const response = (err, data) => {
|
|
if (err) {
|
|
failed(err, data);
|
|
} else {
|
|
this.loggedin = true;
|
|
caller(callback, err, data);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* @param {Error} err err
|
|
* @param {*} data data
|
|
* @param {string} msg msg
|
|
* @returns {void}
|
|
*/
|
|
const attempt = (err, data, msg) => {
|
|
if (err) {
|
|
failed(err, data);
|
|
} else {
|
|
if (method === AUTH_METHODS.CRAM_MD5) {
|
|
this.command(encode_cram_md5(msg), response, [235, 503]);
|
|
} else if (method === AUTH_METHODS.LOGIN) {
|
|
this.command(
|
|
Buffer.from(login.password()).toString('base64'),
|
|
response,
|
|
[235, 503]
|
|
);
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* @param {Error} err err
|
|
* @param {*} data data
|
|
* @param {string} msg msg
|
|
* @returns {void}
|
|
*/
|
|
const attempt_user = (err, data, msg) => {
|
|
if (err) {
|
|
failed(err, data);
|
|
} else {
|
|
if (method === AUTH_METHODS.LOGIN) {
|
|
this.command(
|
|
Buffer.from(login.user()).toString('base64'),
|
|
attempt,
|
|
[334]
|
|
);
|
|
}
|
|
}
|
|
};
|
|
|
|
switch (method) {
|
|
case AUTH_METHODS.CRAM_MD5:
|
|
this.command(`AUTH ${AUTH_METHODS.CRAM_MD5}`, attempt, [334]);
|
|
break;
|
|
case AUTH_METHODS.LOGIN:
|
|
this.command(`AUTH ${AUTH_METHODS.LOGIN}`, attempt_user, [334]);
|
|
break;
|
|
case AUTH_METHODS.PLAIN:
|
|
this.command(
|
|
`AUTH ${AUTH_METHODS.PLAIN} ${encode_plain()}`,
|
|
response,
|
|
[235, 503]
|
|
);
|
|
break;
|
|
case AUTH_METHODS.XOAUTH2:
|
|
this.command(
|
|
`AUTH ${AUTH_METHODS.XOAUTH2} ${encode_xoauth2()}`,
|
|
response,
|
|
[235, 503]
|
|
);
|
|
break;
|
|
default:
|
|
const msg = 'no form of authorization supported';
|
|
const err = SMTPError(msg, SMTPError.AUTHNOTSUPPORTED, null, data);
|
|
caller(callback, err);
|
|
break;
|
|
}
|
|
};
|
|
|
|
this.ehlo_or_helo_if_needed(initiate, domain);
|
|
}
|
|
|
|
/**
|
|
* @param {boolean} [force=false] whether or not to force destroy the connection
|
|
* @returns {void}
|
|
*/
|
|
close(force = false) {
|
|
if (this.sock) {
|
|
if (force) {
|
|
this.log('smtp connection destroyed!');
|
|
this.sock.destroy();
|
|
} else {
|
|
this.log('smtp connection closed.');
|
|
this.sock.end();
|
|
}
|
|
}
|
|
|
|
if (this.monitor) {
|
|
this.monitor.stop();
|
|
this.monitor = null;
|
|
}
|
|
|
|
this._state = SMTPState.NOTCONNECTED;
|
|
this._secure = false;
|
|
this.sock = null;
|
|
this.features = null;
|
|
this.loggedin = !(this.user() && this.password());
|
|
}
|
|
|
|
/**
|
|
* @param {function(...*): void} [callback] function to call after response
|
|
* @returns {void}
|
|
*/
|
|
quit(callback) {
|
|
this.command(
|
|
'quit',
|
|
(err, data) => {
|
|
caller(callback, err, data);
|
|
this.close();
|
|
},
|
|
[221, 250]
|
|
);
|
|
}
|
|
}
|
|
|
|
exports.SMTP = SMTP;
|
|
exports.state = SMTPState;
|
|
exports.authentication = AUTH_METHODS;
|
|
exports.DEFAULT_TIMEOUT = TIMEOUT;
|