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dsn.js
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dsn.js
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"use strict";
// RFC 3463 Enhanced Status Codes
const enum_status_codes = [
[ // X.0.XXX Other or Undefined Status (unspecified)
"Other undefined status", // X.0.0
],
[ // X.1.XXX Addressing Status (addr_*)
"Other address status", // X.1.0
"Bad destination mailbox address", // X.1.1
"Bad destination system address", // X.1.2
"Bad destination mailbox address syntax", // X.1.3
"Destination mailbox address ambiguous", // X.1.4
"Destination address valid", // X.1.5
"Destination mailbox has moved, No forwarding address", // X.1.6
"Bad sender's mailbox address syntax", // X.1.7
"Bad sender's system address", // X.1.8
],
[ // X.2.XXX Mailbox Status (mbox_*)
"Other or undefined mailbox status", // X.2.0
"Mailbox disabled, not accepting messages", // X.2.1
"Mailbox full", // X.2.2
"Message length exceeds administrative limit", // X.2.3
"Mailing list expansion problem", // X.2.4
],
[ // X.3.XXX Mail System Status (sys_*)
"Other or undefined mail system status", // X.3.0
"Mail system full", // X.3.1
"System not accepting network messages", // X.3.2
"System not capable of selected features", // X.3.3
"Message too big for system", // X.3.4
"System incorrectly configured", // X.3.5
],
[ // X.4.XXX Network and Routing Status (net_*)
"Other or undefined network or routing status", // X.4.0
"No answer from host", // X.4.1
"Bad connection", // X.4.2
"Directory server failure", // X.4.3
"Unable to route", // X.4.4
"Mail system congestion", // X.4.5
"Routing loop detected", // X.4.6
"Delivery time expired", // X.4.7
],
[ // X.5.XXX Mail Delivery Protocol Status (proto_*)
"Other or undefined protocol status", // X.5.0
"Invalid command", // X.5.1
"Syntax error", // X.5.2
"Too many recipients", // X.5.3
"Invalid command arguments", // X.5.4
"Wrong protocol version", // X.5.5
"Authentication Exchange line is too long", // X.5.6
],
[ // X.6.XXX Message Content or Media Status (media_*)
"Other or undefined media error", // X.6.0
"Media not supported", // X.6.1
"Conversion required and prohibited", // X.6.2
"Conversion required but not supported", // X.6.3
"Conversion with loss performed", // X.6.4
"Conversion failed", // X.6.5
],
[ // X.7.XXX Security or Policy Status (sec_*)
"Other or undefined security status", // X.7.0
"Delivery not authorized, message refused", // X.7.1
"Mailing list expansion prohibited", // X.7.2
"Security conversion required but not possible", // X.7.3
"Security features not supported", // X.7.4
"Cryptographic failure", // X.7.5
"Cryptographic algorithm not supported", // X.7.6
"Message integrity failure", // X.7.7
"Authentication credentials invalid", // X.7.8
"Authentication mechanism is too weak", // X.7.9
"", // X.7.10
"Encryption required for requested authentication mechanism", // X.7.11
]
];
class DSN {
constructor (code, msg, def, subject, detail) {
this.code = (/^[245]\d{2}/.exec(code)) ? code : null || def || 450;
this.msg = msg;
this.cls = parseInt(new String(this.code)[0]);
this.sub = subject || 0;
this.det = detail || 0;
this.default_msg = ((enum_status_codes[this.sub]) ? enum_status_codes[this.sub][this.det] : '') || '';
// Handle multi-line replies
if (Array.isArray(this.msg)) {
this.reply = [];
let m;
while ((m = this.msg.shift())) {
this.reply.push(`${this.cls}.${this.sub}.${this.det} ${m}`);
}
}
else {
this.reply = `${this.cls}.${this.sub}.${this.det} ${(this.msg || this.default_msg)}`;
}
}
}
exports.create = function (code, msg, subject, detail) {
return new DSN(code, msg, null, subject, detail);
}
exports.unspecified = function (msg, code) { return new DSN(code, msg, 450, 0, 0); }
// addr_*
exports.addr_unspecified = function (msg, code) { return new DSN(code, msg, 450, 1, 0); }
exports.addr_bad_dest_mbox = function (msg, code) { return new DSN(code, msg, 550, 1, 1); }
exports.no_such_user = function (msg, code) { return new DSN(code, msg || 'No such user', 550, 1, 1); }
exports.addr_bad_dest_system = function (msg, code) { return new DSN(code, msg, 550, 1, 2); }
exports.addr_bad_dest_syntax = function (msg, code) { return new DSN(code, msg, 550, 1, 3); }
exports.addr_dest_ambigous = function (msg, code) { return new DSN(code, msg, 450, 1, 4); }
exports.addr_rcpt_ok = function (msg, code) { return new DSN(code, msg, 250, 1, 5); }
exports.addr_mbox_moved = function (msg, code) { return new DSN(code, msg, 550, 1, 6); }
exports.addr_bad_from_syntax = function (msg, code) { return new DSN(code, msg, 550, 1, 7); }
exports.addr_bad_from_system = function (msg, code) { return new DSN(code, msg, 550, 1, 8); }
// mbox_*
exports.mbox_unspecified = function (msg, code) { return new DSN(code, msg, 450, 2, 0); }
exports.mbox_disabled = function (msg, code) { return new DSN(code, msg, 550, 2, 1); }
exports.mbox_full = function (msg, code) { return new DSN(code, msg, 450, 2, 2); }
exports.mbox_msg_too_long = function (msg, code) { return new DSN(code, msg, 550, 2, 3); }
exports.mbox_list_expansion_problem = function (msg, code) { return new DSN(code, msg, 450, 2, 4); }
// sys_*
exports.sys_unspecified = function (msg, code) { return new DSN(code, msg, 450, 3, 0); }
exports.sys_disk_full = function (msg, code) { return new DSN(code, msg, 450, 3, 1); }
exports.sys_not_accepting_mail = function (msg, code) { return new DSN(code, msg, 450, 3, 2); }
exports.sys_not_supported = function (msg, code) { return new DSN(code, msg, 450, 3, 3); }
exports.sys_msg_too_big = function (msg, code) { return new DSN(code, msg, 550, 3, 4); }
exports.sys_incorrectly_configured = function (msg, code) { return new DSN(code, msg, 450, 3, 5); }
// net_*
exports.net_unspecified = function (msg, code) { return new DSN(code, msg, 450, 4, 0); }
exports.net_no_answer = function (msg, code) { return new DSN(code, msg, 450, 4, 1); }
exports.net_bad_connection = function (msg, code) { return new DSN(code, msg, 450, 4, 2); }
exports.net_directory_server_failed = function (msg, code) { return new DSN(code, msg, 450, 4, 3); }
exports.temp_resolver_failed = function (msg, code) { return new DSN(code, msg || 'Temporary address resolution failure', 450, 4, 3); }
exports.net_unable_to_route = function (msg, code) { return new DSN(code, msg, 550, 4, 4); }
exports.net_system_congested = function (msg, code) { return new DSN(code, msg, 450, 4, 5); }
exports.net_routing_loop = function (msg, code) { return new DSN(code, msg, 550, 4, 6); }
exports.too_many_hops = function (msg, code) { return new DSN(code, msg || 'Too many hops', 550, 4, 6); }
exports.net_delivery_time_expired = function (msg, code) { return new DSN(code, msg, 550, 4, 7); }
// proto_*
exports.proto_unspecified = function (msg, code) { return new DSN(code, msg, 450, 5, 0); }
exports.proto_invalid_command = function (msg, code) { return new DSN(code, msg, 550, 5, 1); }
exports.proto_syntax_error = function (msg, code) { return new DSN(code, msg, 550, 5, 2); }
exports.proto_too_many_rcpts = function (msg, code) { return new DSN(code, msg, 450, 5, 3); }
exports.proto_invalid_cmd_args = function (msg, code) { return new DSN(code, msg, 550, 5, 4); }
exports.proto_wrong_version = function (msg, code) { return new DSN(code, msg, 450, 5, 5); }
// media_*
exports.media_unspecified = function (msg, code) { return new DSN(code, msg, 450, 6, 0); }
exports.media_unsupported = function (msg, code) { return new DSN(code, msg, 550, 6, 1); }
exports.media_conv_prohibited = function (msg, code) { return new DSN(code, msg, 550, 6, 2); }
exports.media_conv_unsupported = function (msg, code) { return new DSN(code, msg, 450, 6, 3); }
exports.media_conv_lossy = function (msg, code) { return new DSN(code, msg, 450, 6, 4); }
exports.media_conv_failed = function (msg, code) { return new DSN(code, msg, 450, 6, 5); }
// sec_*
exports.sec_unspecified = function (msg, code) { return new DSN(code, msg, 450, 7, 0); }
exports.sec_unauthorized = function (msg, code) { return new DSN(code, msg, 550, 7, 1); }
exports.bad_sender_ip = function (msg, code) { return new DSN(code, msg || 'Bad sender IP', 550, 7, 1); }
exports.relaying_denied = function (msg, code) { return new DSN(code, msg || 'Relaying denied', 550, 7, 1); }
exports.sec_list_expn_prohibited = function (msg, code) { return new DSN(code, msg, 550, 7, 2); }
exports.sec_conv_failed = function (msg, code) { return new DSN(code, msg, 550, 7, 3); }
exports.sec_feature_unsupported = function (msg, code) { return new DSN(code, msg, 550, 7, 4); }
exports.sec_crypto_failure = function (msg, code) { return new DSN(code, msg, 550, 7, 5); }
exports.sec_crypto_algo_unsupported = function (msg, code) { return new DSN(code, msg, 450, 7, 6); }
exports.sec_msg_integrity_failure = function (msg, code) { return new DSN(code, msg, 550, 7, 7); }
// RFC4954
exports.auth_succeeded = function (msg, code) { return new DSN(code, msg || 'Authentication Succeeded', 235, 7, 0); }
exports.auth_pass_transition_needed = function (msg, code) { return new DSN(code, msg || 'A password transition is needed', 432, 7, 12); }
exports.auth_temp_fail = function (msg, code) { return new DSN(code, msg || 'Temporary authentication failure', 454, 7, 0); }
exports.auth_too_weak = function (msg, code) { return new DSN(code, msg, 534, 7, 9); }
exports.auth_invalid = function (msg, code) { return new DSN(code, msg, 535, 7, 8); }
exports.auth_exch_too_long = function (msg, code) { return new DSN(code, msg, 500, 5, 6)}
exports.auth_required = function (msg, code) { return new DSN(code, msg || 'Authentication required', 530, 7, 0); }
exports.auth_crypt_required = function (msg, code) { return new DSN(code, msg, 538, 7, 11); }