997 lines
35 KiB
JavaScript
997 lines
35 KiB
JavaScript
/* jslint node: true */
|
|
'use strict';
|
|
|
|
// ENiGMA½
|
|
const Log = require('../../logger.js').log;
|
|
const { ServerModule } = require('../../server_module.js');
|
|
const Config = require('../../config.js').get;
|
|
const {
|
|
getTransactionDatabase,
|
|
getModDatabasePath
|
|
} = require('../../database.js');
|
|
const {
|
|
getMessageAreaByTag,
|
|
getMessageConferenceByTag,
|
|
} = require('../../message_area.js');
|
|
const User = require('../../user.js');
|
|
const Errors = require('../../enig_error.js').Errors;
|
|
const Message = require('../../message.js');
|
|
const FTNAddress = require('../../ftn_address.js');
|
|
const {
|
|
isAnsi,
|
|
stripAnsiControlCodes,
|
|
splitTextAtTerms,
|
|
} = require('../../string_util.js');
|
|
const AnsiPrep = require('../../ansi_prep.js');
|
|
const {
|
|
stripMciColorCodes
|
|
} = require('../../color_codes.js');
|
|
|
|
// deps
|
|
const NNTPServerBase = require('nntp-server');
|
|
const _ = require('lodash');
|
|
const fs = require('fs-extra');
|
|
const forEachSeries = require('async/forEachSeries');
|
|
const asyncReduce = require('async/reduce');
|
|
const asyncMap = require('async/map');
|
|
const asyncSeries = require('async/series');
|
|
const asyncWaterfall = require('async/waterfall');
|
|
const LRU = require('lru-cache');
|
|
const sqlite3 = require('sqlite3');
|
|
const paths = require('path');
|
|
|
|
//
|
|
// Network News Transfer Protocol (NNTP)
|
|
//
|
|
// RFCS
|
|
// - https://www.w3.org/Protocols/rfc977/rfc977
|
|
// - https://tools.ietf.org/html/rfc3977
|
|
// - https://tools.ietf.org/html/rfc2980
|
|
// - https://tools.ietf.org/html/rfc5536
|
|
|
|
//
|
|
exports.moduleInfo = {
|
|
name : 'NNTP',
|
|
desc : 'Network News Transfer Protocol (NNTP) Server',
|
|
author : 'NuSkooler',
|
|
packageName : 'codes.l33t.enigma.nntp.server',
|
|
};
|
|
|
|
exports.performMaintenanceTask = performMaintenanceTask;
|
|
|
|
/*
|
|
General TODO
|
|
- ACS checks need worked out. Currently ACS relies on |client|. We need a client
|
|
spec that can be created even without a login server. Some checks and simply
|
|
return false/fail.
|
|
*/
|
|
|
|
// simple DB maps NNTP Message-ID's which are
|
|
// sequential per group -> ENiG messages
|
|
// A single instance is shared across NNTP and/or NNTPS
|
|
class NNTPDatabase
|
|
{
|
|
constructor() {
|
|
}
|
|
|
|
init(cb) {
|
|
asyncSeries(
|
|
[
|
|
(callback) => {
|
|
this.db = getTransactionDatabase(new sqlite3.Database(
|
|
getModDatabasePath(exports.moduleInfo),
|
|
err => {
|
|
return callback(err);
|
|
}
|
|
));
|
|
},
|
|
(callback) => {
|
|
this.db.serialize( () => {
|
|
this.db.run(
|
|
`CREATE TABLE IF NOT EXISTS nntp_area_message (
|
|
nntp_message_id INTEGER NOT NULL,
|
|
message_id INTEGER NOT NULL,
|
|
message_area_tag VARCHAR NOT NULL,
|
|
message_uuid VARCHAR NOT NULL,
|
|
|
|
UNIQUE(nntp_message_id, message_area_tag)
|
|
);`
|
|
);
|
|
|
|
this.db.run(
|
|
`CREATE INDEX IF NOT EXISTS nntp_area_message_by_uuid_index
|
|
ON nntp_area_message (message_uuid);`
|
|
);
|
|
|
|
return callback(null);
|
|
});
|
|
}
|
|
],
|
|
err => {
|
|
return cb(err);
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
let nntpDatabase;
|
|
|
|
class NNTPServer extends NNTPServerBase {
|
|
constructor(options, serverName) {
|
|
super(options);
|
|
|
|
this.log = Log.child( { server : serverName } );
|
|
|
|
const config = Config();
|
|
this.groupCache = new LRU({
|
|
max : _.get(config, 'contentServers.nntp.cache.maxItems', 200),
|
|
maxAge : _.get(config, 'contentServers.nntp.cache.maxAge', 1000 * 30), // default=30s
|
|
});
|
|
}
|
|
|
|
_needAuth(session, command) {
|
|
return super._needAuth(session, command);
|
|
}
|
|
|
|
_authenticate(session) {
|
|
const username = session.authinfo_user;
|
|
const password = session.authinfo_pass;
|
|
|
|
this.log.trace( { username }, 'Authentication request');
|
|
|
|
return new Promise( resolve => {
|
|
const user = new User();
|
|
user.authenticateFactor1({ type : User.AuthFactor1Types.Password, username, password }, err => {
|
|
if(err) {
|
|
// :TODO: Log IP address
|
|
this.log.debug( { username, reason : err.message }, 'Authentication failure');
|
|
return resolve(false);
|
|
}
|
|
|
|
session.authUser = user;
|
|
|
|
this.log.debug( { username }, 'User authenticated successfully');
|
|
return resolve(true);
|
|
});
|
|
});
|
|
}
|
|
|
|
isGroupSelected(session) {
|
|
return Array.isArray(_.get(session, 'groupInfo.messageList'));
|
|
}
|
|
|
|
getJAMStyleFrom(message, fromName) {
|
|
//
|
|
// Try to to create a (JamNTTPd) JAM style "From" field:
|
|
//
|
|
// - If we're dealing with a FTN address, create an email-like format
|
|
// but do not include ':' or '/' characters as it may cause clients
|
|
// to puke. FTN addresses are formatted how JamNTTPd does it for
|
|
// some sort of compliance. We also extend up to 5D addressing.
|
|
// - If we have an email address, then it's ready to go.
|
|
//
|
|
const remoteFrom = _.get(message.meta, [ 'System', Message.SystemMetaNames.RemoteFromUser ]);
|
|
let jamStyleFrom;
|
|
if(remoteFrom) {
|
|
const flavor = _.get(message.meta, [ 'System', Message.SystemMetaNames.ExternalFlavor ]);
|
|
switch(flavor) {
|
|
case [ Message.AddressFlavor.FTN ] :
|
|
{
|
|
let ftnAddr = FTNAddress.fromString(remoteFrom);
|
|
if(ftnAddr && ftnAddr.isValid()) {
|
|
// In general, addresses are in point, node, net, zone, domain order
|
|
if(ftnAddr.domain) { // 5D
|
|
// point.node.net.zone@domain or node.net.zone@domain
|
|
jamStyleFrom = `${ftnAddr.node}.${ftnAddr.net}.${ftnAddr.zone}@${ftnAddr.domain}`;
|
|
if(ftnAddr.point) {
|
|
jamStyleFrom = `${ftnAddr.point}.` + jamStyleFrom;
|
|
}
|
|
} else {
|
|
if(ftnAddr.point) {
|
|
jamStyleFrom = `${ftnAddr.point}@${ftnAddr.node}.${ftnAddr.net}.${ftnAddr.zone}`;
|
|
} else {
|
|
jamStyleFrom = `0@${ftnAddr.node}.${ftnAddr.net}.${ftnAddr.zone}`;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case [ Message.AddressFlavor.Email ] :
|
|
jamStyleFrom = `${fromName} <${remoteFrom}>`;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(!jamStyleFrom) {
|
|
jamStyleFrom = fromName;
|
|
}
|
|
|
|
return jamStyleFrom;
|
|
}
|
|
|
|
populateNNTPHeaders(session, message, cb) {
|
|
//
|
|
// Build compliant headers
|
|
//
|
|
// Resources:
|
|
// - https://tools.ietf.org/html/rfc5536#section-3.1
|
|
// - https://github.com/ftnapps/jamnntpd/blob/master/src/nntpserv.c#L962
|
|
//
|
|
const toName = this.getMessageTo(message);
|
|
const fromName = this.getMessageFrom(message);
|
|
|
|
message.nntpHeaders = {
|
|
From : this.getJAMStyleFrom(message, fromName),
|
|
'X-Comment-To' : toName,
|
|
Newsgroups : session.group.name,
|
|
Subject : message.subject,
|
|
Date : this.getMessageDate(message),
|
|
'Message-ID' : this.getMessageIdentifier(message),
|
|
Path : 'ENiGMA1/2!not-for-mail',
|
|
'Content-Type' : 'text/plain; charset=utf-8',
|
|
};
|
|
|
|
const externalFlavor = _.get(message.meta.System, [ Message.SystemMetaNames.ExternalFlavor ]);
|
|
if(externalFlavor) {
|
|
message.nntpHeaders['X-ENiG-MessageFlavor'] = externalFlavor;
|
|
}
|
|
|
|
// Any FTN properties -> X-FTN-*
|
|
_.each(message.meta.FtnProperty, (v, k) => {
|
|
const suffix = {
|
|
[ Message.FtnPropertyNames.FtnTearLine ] : 'Tearline',
|
|
[ Message.FtnPropertyNames.FtnOrigin ] : 'Origin',
|
|
[ Message.FtnPropertyNames.FtnArea ] : 'AREA',
|
|
[ Message.FtnPropertyNames.FtnSeenBy ] : 'SEEN-BY',
|
|
}[k];
|
|
|
|
if(suffix) {
|
|
// some special treatment.
|
|
if('Tearline' === suffix) {
|
|
v = v.replace(/^--- /, '');
|
|
} else if('Origin' === suffix) {
|
|
v = v.replace(/^[ ]{1,2}\* Origin: /, '');
|
|
}
|
|
if(Array.isArray(v)) { // ie: SEEN-BY[] -> one big list
|
|
v = v.join(' ');
|
|
}
|
|
message.nntpHeaders[`X-FTN-${suffix}`] = v.trim();
|
|
}
|
|
});
|
|
|
|
// Other FTN kludges
|
|
_.each(message.meta.FtnKludge, (v, k) => {
|
|
if(Array.isArray(v)) {
|
|
v = v.join(' '); // same as above
|
|
}
|
|
message.nntpHeaders[`X-FTN-${k.toUpperCase()}`] = v.toString().trim();
|
|
});
|
|
|
|
//
|
|
// Set X-FTN-To and X-FTN-From:
|
|
// - If remote to/from : joeuser <remoteAddr>
|
|
// - Without remote : joeuser
|
|
//
|
|
const remoteFrom = _.get(message.meta, [ 'System', Message.SystemMetaNames.RemoteFromUser ]);
|
|
message.nntpHeaders['X-FTN-From'] = remoteFrom ? `${fromName} <${remoteFrom}>` : fromName;
|
|
const remoteTo = _.get(message.meta, [ 'System', Message.SystemMetaNames.RemoteToUser ]);
|
|
message.nntpHeaders['X-FTN-To'] = remoteTo ? `${toName} <${remoteTo}>` : toName;
|
|
|
|
if(!message.replyToMsgId) {
|
|
return cb(null);
|
|
}
|
|
|
|
// replyToMessageId -> Message-ID formatted ID
|
|
const filter = {
|
|
resultType : 'uuid',
|
|
ids : [ parseInt(message.replyToMsgId) ],
|
|
limit : 1,
|
|
};
|
|
Message.findMessages(filter, (err, uuids) => {
|
|
if(!err && Array.isArray(uuids)) {
|
|
message.nntpHeaders.References = this.makeMessageIdentifier(message.replyToMsgId, uuids[0]);
|
|
}
|
|
return cb(null);
|
|
});
|
|
}
|
|
|
|
getMessageUUIDFromMessageID(session, messageId) {
|
|
let messageUuid;
|
|
|
|
// Direct ID request
|
|
if((_.isString(messageId) && '<' !== messageId.charAt(0)) || _.isNumber(messageId)) {
|
|
// group must be in session
|
|
if(!this.isGroupSelected(session)) {
|
|
return null;
|
|
}
|
|
|
|
messageId = parseInt(messageId);
|
|
if(isNaN(messageId)) {
|
|
return null;
|
|
}
|
|
|
|
const msg = session.groupInfo.messageList.find(m => {
|
|
return m.index === messageId;
|
|
});
|
|
|
|
messageUuid = msg && msg.messageUuid;
|
|
} else {
|
|
// <Message-ID> request
|
|
[ , messageUuid ] = this.getMessageIdentifierParts(messageId);
|
|
}
|
|
|
|
if(!_.isString(messageUuid)) {
|
|
return null;
|
|
}
|
|
|
|
return messageUuid;
|
|
}
|
|
|
|
_getArticle(session, messageId) {
|
|
return new Promise( resolve => {
|
|
this.log.trace( { messageId }, 'Get article');
|
|
|
|
const messageUuid = this.getMessageUUIDFromMessageID(session, messageId);
|
|
if(!messageUuid) {
|
|
this.log.debug( { messageId }, 'Unable to retrieve message UUID for article request');
|
|
return resolve(null);
|
|
}
|
|
|
|
const message = new Message();
|
|
asyncSeries(
|
|
[
|
|
(callback) => {
|
|
return message.load( { uuid : messageUuid }, callback);
|
|
},
|
|
(callback) => {
|
|
if(!_.has(session, 'groupInfo.areaTag')) {
|
|
// :TODO: if this is needed, how to validate properly?
|
|
this.log.warn( { messageUuid, messageId }, 'Get article request without group selection');
|
|
return resolve(null);
|
|
}
|
|
|
|
if(session.groupInfo.areaTag !== message.areaTag) {
|
|
return resolve(null);
|
|
}
|
|
|
|
if(!this.hasConfAndAreaReadAccess(session, session.groupInfo.confTag, session.groupInfo.areaTag)) {
|
|
this.log.info( { messageUuid, messageId}, 'Access denied for message');
|
|
return resolve(null);
|
|
}
|
|
|
|
return callback(null);
|
|
},
|
|
(callback) => {
|
|
return this.populateNNTPHeaders(session, message, callback);
|
|
},
|
|
(callback) => {
|
|
return this.prepareMessageBody(message, callback);
|
|
}
|
|
],
|
|
err => {
|
|
if(err) {
|
|
this.log.error( { error : err.message, messageUuid }, 'Failed to load article');
|
|
return resolve(null);
|
|
}
|
|
|
|
this.log.info( { messageUuid, messageId, areaTag : message.areaTag }, 'Serving article');
|
|
return resolve(message);
|
|
}
|
|
);
|
|
});
|
|
}
|
|
|
|
_getRange(session, first, last /*options*/) {
|
|
return new Promise(resolve => {
|
|
//
|
|
// Build an array of message objects that can later
|
|
// be used with the various _build* methods.
|
|
//
|
|
// :TODO: Handle |options|
|
|
if(!this.isGroupSelected(session)) {
|
|
return resolve(null);
|
|
}
|
|
|
|
const uuids = session.groupInfo.messageList.filter(m => {
|
|
if(m.areaTag !== session.groupInfo.areaTag) {
|
|
return false;
|
|
}
|
|
if(m.index < first || m.index > last) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}).map(m => {
|
|
return { uuid : m.messageUuid, index : m.index };
|
|
});
|
|
|
|
asyncMap(uuids, (msgInfo, nextMessageUuid) => {
|
|
const message = new Message();
|
|
message.load( { uuid : msgInfo.uuid }, err => {
|
|
if(err) {
|
|
return nextMessageUuid(err);
|
|
}
|
|
|
|
message.index = msgInfo.index;
|
|
|
|
this.populateNNTPHeaders(session, message, () => {
|
|
this.prepareMessageBody(message, () => {
|
|
return nextMessageUuid(null, message);
|
|
});
|
|
});
|
|
});
|
|
},
|
|
(err, messages) => {
|
|
return resolve(err ? null : messages);
|
|
});
|
|
});
|
|
}
|
|
|
|
_selectGroup (session, groupName) {
|
|
this.log.trace( { groupName }, 'Select group request');
|
|
|
|
return new Promise( resolve => {
|
|
this.getGroup(session, groupName, (err, group) => {
|
|
if(err) {
|
|
return resolve(false);
|
|
}
|
|
|
|
session.group = Object.assign(
|
|
{}, // start clean
|
|
{
|
|
description : group.friendlyDesc || group.friendlyName,
|
|
current_article : group.nntp.total ? group.nntp.min_index : 0,
|
|
},
|
|
group.nntp
|
|
);
|
|
|
|
session.groupInfo = group; // full set of info
|
|
|
|
return resolve(true);
|
|
});
|
|
});
|
|
}
|
|
|
|
_getGroups(session, time, wildmat) {
|
|
this.log.trace( { time, wildmat }, 'Get groups request');
|
|
|
|
// :TODO: handle time - probably use as caching mechanism - must consider user/auth/rights
|
|
// :TODO: handle |time| if possible.
|
|
return new Promise( (resolve, reject) => {
|
|
const config = Config();
|
|
|
|
// :TODO: merge confs avail to authenticated user
|
|
const publicConfs = _.get(config, 'contentServers.nntp.publicMessageConferences', {});
|
|
|
|
asyncReduce(Object.keys(publicConfs), [], (groups, confTag, nextConfTag) => {
|
|
const areaTags = publicConfs[confTag];
|
|
// :TODO: merge area tags available to authenticated user
|
|
asyncMap(areaTags, (areaTag, nextAreaTag) => {
|
|
const groupName = this.getGroupName(confTag, areaTag);
|
|
|
|
// filter on |wildmat| if supplied. We will remove
|
|
// empty areas below in the final results.
|
|
if(wildmat && !wildmat.test(groupName)) {
|
|
return nextAreaTag(null, null);
|
|
}
|
|
|
|
this.getGroup(session, groupName, (err, group) => {
|
|
if(err) {
|
|
return nextAreaTag(null, null); // try others
|
|
}
|
|
return nextAreaTag(null, group.nntp);
|
|
});
|
|
},
|
|
(err, areas) => {
|
|
if(err) {
|
|
return nextConfTag(err);
|
|
}
|
|
|
|
areas = areas.filter(a => a && Object.keys(a).length > 0); // remove empty
|
|
groups.push(...areas);
|
|
|
|
return nextConfTag(null, groups);
|
|
});
|
|
},
|
|
(err, groups) => {
|
|
if(err) {
|
|
return reject(err);
|
|
}
|
|
return resolve(groups);
|
|
});
|
|
});
|
|
}
|
|
|
|
isConfAndAreaPubliclyExposed(confTag, areaTag) {
|
|
const publicAreaTags = _.get(Config(), [ 'contentServers', 'nntp', 'publicMessageConferences', confTag ] );
|
|
return Array.isArray(publicAreaTags) && publicAreaTags.includes(areaTag);
|
|
}
|
|
|
|
hasConfAndAreaReadAccess(session, confTag, areaTag) {
|
|
if(Message.isPrivateAreaTag(areaTag)) {
|
|
return false;
|
|
}
|
|
|
|
if(this.isConfAndAreaPubliclyExposed(confTag, areaTag)) {
|
|
return true;
|
|
}
|
|
|
|
// further checks require an authenticated user & ACS
|
|
if(!session || !session.authUser) {
|
|
return false;
|
|
}
|
|
|
|
const conf = getMessageConferenceByTag(confTag);
|
|
if(!conf) {
|
|
return false;
|
|
}
|
|
// :TODO: validate ACS
|
|
|
|
const area = getMessageAreaByTag(areaTag, confTag);
|
|
if(!area) {
|
|
return false;
|
|
}
|
|
// :TODO: validate ACS
|
|
|
|
return false;
|
|
}
|
|
|
|
getGroup(session, groupName, cb) {
|
|
let group = this.groupCache.get(groupName);
|
|
if(group) {
|
|
return cb(null, group);
|
|
}
|
|
|
|
const [ confTag, areaTag ] = groupName.split('.');
|
|
if(!confTag || !areaTag) {
|
|
return cb(Errors.UnexpectedState(`Invalid NNTP group name: ${groupName}`));
|
|
}
|
|
|
|
if(!this.hasConfAndAreaReadAccess(session, confTag, areaTag)) {
|
|
return cb(Errors.AccessDenied(`No access to conference ${confTag} and/or area ${areaTag}`));
|
|
}
|
|
|
|
const area = getMessageAreaByTag(areaTag, confTag);
|
|
if(!area) {
|
|
return cb(Errors.DoesNotExist(`No area for areaTag "${areaTag}" / confTag "${confTag}"`));
|
|
}
|
|
|
|
this.getMappedMessageListForArea(areaTag, (err, messageList) => {
|
|
if(err) {
|
|
return cb(err);
|
|
}
|
|
|
|
if(0 === messageList.length) {
|
|
//
|
|
// Handle empty group
|
|
// See https://tools.ietf.org/html/rfc3977#section-6.1.1.2
|
|
//
|
|
return cb(null, {
|
|
messageList : [],
|
|
confTag,
|
|
areaTag,
|
|
friendlyName : area.name,
|
|
friendlyDesc : area.desc,
|
|
nntp : {
|
|
name : groupName,
|
|
description : area.desc,
|
|
min_index : 0,
|
|
max_index : 0,
|
|
total : 0,
|
|
}
|
|
});
|
|
}
|
|
|
|
group = {
|
|
messageList,
|
|
confTag,
|
|
areaTag,
|
|
friendlyName : area.name,
|
|
friendlyDesc : area.desc,
|
|
nntp : {
|
|
name : groupName,
|
|
min_index : messageList[0].index,
|
|
max_index : messageList[messageList.length - 1].index,
|
|
total : messageList.length,
|
|
},
|
|
};
|
|
|
|
this.groupCache.set(groupName, group);
|
|
|
|
return cb(null, group);
|
|
});
|
|
}
|
|
|
|
getMappedMessageListForArea(areaTag, cb) {
|
|
//
|
|
// Get all messages in mapped database. Then, find any messages that are not
|
|
// yet mapped with ID's > the highest ID we have. Any new messages will have
|
|
// new mappings created.
|
|
//
|
|
// :TODO: introduce caching
|
|
asyncWaterfall(
|
|
[
|
|
(callback) => {
|
|
nntpDatabase.db.all(
|
|
`SELECT nntp_message_id, message_id, message_uuid
|
|
FROM nntp_area_message
|
|
WHERE message_area_tag = ?
|
|
ORDER BY nntp_message_id;`,
|
|
[ areaTag ],
|
|
(err, rows) => {
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
|
|
let messageList;
|
|
const lastMessageId = rows.length > 0 ? rows[rows.length - 1].message_id : 0;
|
|
if(!lastMessageId) {
|
|
messageList = [];
|
|
} else {
|
|
messageList = rows.map(r => {
|
|
return {
|
|
areaTag,
|
|
index : r.nntp_message_id, // node-nntp wants this name
|
|
messageUuid : r.message_uuid,
|
|
};
|
|
});
|
|
}
|
|
|
|
return callback(null, messageList, lastMessageId);
|
|
}
|
|
);
|
|
},
|
|
(messageList, lastMessageId, callback) => {
|
|
// Find any new entries
|
|
const filter = {
|
|
areaTag,
|
|
newerThanMessageId : lastMessageId,
|
|
sort : 'messageId',
|
|
order : 'ascending',
|
|
resultType : 'messageList',
|
|
};
|
|
Message.findMessages(filter, (err, newMessageList) => {
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
|
|
let index = messageList.length > 0 ?
|
|
messageList[messageList.length - 1].index + 1
|
|
: 1;
|
|
newMessageList = newMessageList.map(m => {
|
|
return Object.assign(m, { index : index++ } );
|
|
});
|
|
|
|
if(0 === newMessageList.length) {
|
|
return callback(null, messageList);
|
|
}
|
|
|
|
// populate mapping DB with any new entries
|
|
nntpDatabase.db.beginTransaction( (err, trans) => {
|
|
if(err) {
|
|
return callback(err);
|
|
}
|
|
|
|
forEachSeries(newMessageList, (newMessage, nextNewMessage) => {
|
|
trans.run(
|
|
`INSERT INTO nntp_area_message (nntp_message_id, message_id, message_area_tag, message_uuid)
|
|
VALUES (?, ?, ?, ?);`,
|
|
[ newMessage.index, newMessage.messageId, areaTag, newMessage.messageUuid ],
|
|
err => {
|
|
return nextNewMessage(err);
|
|
}
|
|
);
|
|
},
|
|
err => {
|
|
if(err) {
|
|
return trans.rollback( () => {
|
|
return callback(err);
|
|
});
|
|
}
|
|
|
|
trans.commit( () => {
|
|
messageList.push(...newMessageList.map(m => {
|
|
return {
|
|
areaTag,
|
|
index : m.nntpMessageId,
|
|
messageUuid : m.messageUuid,
|
|
};
|
|
}));
|
|
|
|
return callback(null, messageList);
|
|
});
|
|
});
|
|
});
|
|
});
|
|
}
|
|
],
|
|
(err, messageList) => {
|
|
return cb(err, messageList);
|
|
}
|
|
);
|
|
}
|
|
|
|
_buildHead(session, message) {
|
|
return _.map(message.nntpHeaders, (v, k) => `${k}: ${v}`).join('\r\n');
|
|
}
|
|
|
|
_buildBody(session, message) {
|
|
return message.preparedBody;
|
|
}
|
|
|
|
_buildHeaderField(session, message, field) {
|
|
const body = message.preparedBody || message.message;
|
|
const value = {
|
|
':bytes' : Buffer.byteLength(body).toString(),
|
|
':lines' : splitTextAtTerms(body).length.toString(),
|
|
}[field]
|
|
|| _.find(message.nntpHeaders, (v, k) => {
|
|
return k.toLowerCase() === field;
|
|
});
|
|
|
|
if(!value) {
|
|
//
|
|
// Clients will check some headers just to see if they exist.
|
|
// Don't spam logs with these. For others, it's good to know.
|
|
//
|
|
if(!['references', 'xref'].includes(field)) {
|
|
this.log.trace(`No value for requested header field "${field}"`);
|
|
}
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
_getOverviewFmt(session) {
|
|
return super._getOverviewFmt(session);
|
|
}
|
|
|
|
_getNewNews(session, time, wildmat) {
|
|
// Currently seems pointless to implement. No semi-modern clients seem to use it anyway.
|
|
this.log.debug( { time, wildmat }, 'Request made using unsupported NEWNEWS command');
|
|
throw new Errors.Invalid('NEWNEWS is not enabled on this server');
|
|
}
|
|
|
|
getMessageDate(message) {
|
|
// https://tools.ietf.org/html/rfc5536#section-3.1.1 -> https://tools.ietf.org/html/rfc5322#section-3.3
|
|
return message.modTimestamp.format('ddd, D MMM YYYY HH:mm:ss ZZ');
|
|
}
|
|
|
|
makeMessageIdentifier(messageId, messageUuid) {
|
|
//
|
|
// Spec : RFC-5536 Section 3.1.3 @ https://tools.ietf.org/html/rfc5536#section-3.1.3
|
|
// Example : <2456.0f6587f7-5512-4d03-8740-4d592190145a@enigma-bbs>
|
|
//
|
|
return `<${messageId}.${messageUuid}@enigma-bbs>`;
|
|
}
|
|
|
|
getMessageIdentifier(message) {
|
|
// note that we use the *real* message ID here, not the NNTP-specific index.
|
|
return this.makeMessageIdentifier(message.messageId, message.messageUuid);
|
|
}
|
|
|
|
getMessageIdentifierParts(messageId) {
|
|
const m = messageId.match(/<([0-9]+)\.([0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})@enigma-bbs>/);
|
|
if(m) {
|
|
return [ m[1], m[2] ];
|
|
}
|
|
return [];
|
|
}
|
|
|
|
getMessageTo(message) {
|
|
// :TODO: same as From -- check config
|
|
return message.toUserName;
|
|
}
|
|
|
|
getMessageFrom(message) {
|
|
// :TODO: NNTP config > conf > area config for real names
|
|
return message.fromUserName;
|
|
}
|
|
|
|
prepareMessageBody(message, cb) {
|
|
if(isAnsi(message.message)) {
|
|
AnsiPrep(
|
|
message.message,
|
|
{
|
|
rows : 'auto',
|
|
cols : 79,
|
|
forceLineTerm : true,
|
|
asciiMode : true,
|
|
fillLines : false,
|
|
},
|
|
(err, prepped) => {
|
|
message.preparedBody = prepped || message.message;
|
|
return cb(null);
|
|
}
|
|
);
|
|
} else {
|
|
message.preparedBody = stripMciColorCodes(stripAnsiControlCodes(message.message, { all : true }));
|
|
return cb(null);
|
|
}
|
|
}
|
|
|
|
getGroupName(confTag, areaTag) {
|
|
//
|
|
// Example:
|
|
// input : fsxNet (confTag) fsx_bbs (areaTag)
|
|
// output: fsx_net.fsx_bbs
|
|
//
|
|
// Note also that periods are replaced in conf and area
|
|
// tags such that we *only* have a period separator
|
|
// between the two for a group name!
|
|
//
|
|
return `${_.snakeCase(confTag).replace(/\./g, '_')}.${_.snakeCase(areaTag).replace(/\./g, '_')}`;
|
|
}
|
|
}
|
|
|
|
exports.getModule = class NNTPServerModule extends ServerModule {
|
|
constructor() {
|
|
super();
|
|
}
|
|
|
|
isEnabled() {
|
|
return this.enableNntp || this.enableNttps;
|
|
}
|
|
|
|
get enableNntp() {
|
|
return _.get(Config(), 'contentServers.nntp.nntp.enabled', false);
|
|
}
|
|
|
|
get enableNttps() {
|
|
return _.get(Config(), 'contentServers.nntp.nntps.enabled', false);
|
|
}
|
|
|
|
isConfigured() {
|
|
const config = Config();
|
|
|
|
//
|
|
// Any conf/areas exposed?
|
|
//
|
|
const publicConfs = _.get(config, 'contentServers.nntp.publicMessageConferences', {});
|
|
const areasExposed = _.some(publicConfs, areas => {
|
|
return Array.isArray(areas) && areas.length > 0;
|
|
});
|
|
|
|
if(!areasExposed) {
|
|
return false;
|
|
}
|
|
|
|
const nntp = _.get(config, 'contentServers.nntp.nntp');
|
|
if(nntp && this.enableNntp) {
|
|
if(isNaN(nntp.port)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
const nntps = _.get(config, 'contentServers.nntp.nntps');
|
|
if(nntps && this.enableNttps) {
|
|
if(isNaN(nntps.port)) {
|
|
return false;
|
|
}
|
|
|
|
if(!_.isString(nntps.certPem) || !_.isString(nntps.keyPem)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
createServer(cb) {
|
|
if(!this.isEnabled() || !this.isConfigured()) {
|
|
return cb(null);
|
|
}
|
|
|
|
const config = Config();
|
|
|
|
const commonOptions = {
|
|
//requireAuth : true, // :TODO: re-enable!
|
|
// :TODO: override |session| - use our own debug to Bunyan, etc.
|
|
};
|
|
|
|
if(this.enableNntp) {
|
|
this.nntpServer = new NNTPServer(
|
|
// :TODO: according to docs: if connection is non-tls, but behind proxy (assuming TLS termination?!!) then set this to true
|
|
Object.assign( { secure : false }, commonOptions),
|
|
'NNTP'
|
|
);
|
|
}
|
|
|
|
if(this.enableNttps) {
|
|
this.nntpsServer = new NNTPServer(
|
|
Object.assign(
|
|
{
|
|
secure : true,
|
|
tls : {
|
|
cert : fs.readFileSync(config.contentServers.nntp.nntps.certPem),
|
|
key : fs.readFileSync(config.contentServers.nntp.nntps.keyPem),
|
|
}
|
|
},
|
|
commonOptions
|
|
),
|
|
'NTTPS'
|
|
);
|
|
}
|
|
|
|
nntpDatabase = new NNTPDatabase();
|
|
nntpDatabase.init(err => {
|
|
return cb(err);
|
|
});
|
|
}
|
|
|
|
listen(cb) {
|
|
const config = Config();
|
|
forEachSeries([ 'nntp', 'nntps' ], (service, nextService) => {
|
|
const server = this[`${service}Server`];
|
|
if(server) {
|
|
const port = config.contentServers.nntp[service].port;
|
|
server.listen(this.listenURI(port, service))
|
|
.catch(e => {
|
|
Log.warn( { error : e.message, port }, `${service.toUpperCase()} failed to listen`);
|
|
return nextService(null); // try next anyway
|
|
}).then( () => {
|
|
return nextService(null);
|
|
});
|
|
} else {
|
|
return nextService(null);
|
|
}
|
|
},
|
|
err => {
|
|
return cb(err);
|
|
});
|
|
}
|
|
|
|
listenURI(port, service = 'nntp') {
|
|
return `${service}://0.0.0.0:${port}`;
|
|
}
|
|
};
|
|
|
|
function performMaintenanceTask(args, cb) {
|
|
//
|
|
// Delete any message mapping that no longer have
|
|
// an actual message associated with them.
|
|
//
|
|
if(!nntpDatabase) {
|
|
Log.trace('Cannot perform NNTP maintenance without NNTP database initialized');
|
|
return cb(null);
|
|
}
|
|
|
|
let attached = false;
|
|
asyncSeries(
|
|
[
|
|
(callback) => {
|
|
const messageDbPath = paths.join(Config().paths.db, 'message.sqlite3');
|
|
nntpDatabase.db.run(
|
|
`ATTACH DATABASE "${messageDbPath}" AS msgdb;`,
|
|
err => {
|
|
attached = !err;
|
|
return callback(err);
|
|
}
|
|
);
|
|
},
|
|
(callback) => {
|
|
nntpDatabase.db.run(
|
|
`DELETE FROM nntp_area_message
|
|
WHERE message_uuid NOT IN (
|
|
SELECT message_uuid
|
|
FROM msgdb.message
|
|
);`,
|
|
function result(err) { // no arrow func; need |this.changes|
|
|
if(err) {
|
|
Log.warn( { error : err.message }, 'Failed to delete from NNTP database');
|
|
} else {
|
|
Log.debug( { count : this.changes }, 'Deleted mapped message IDs from NNTP database');
|
|
}
|
|
return callback(err);
|
|
}
|
|
);
|
|
}
|
|
],
|
|
err => {
|
|
if(attached) {
|
|
nntpDatabase.db.run('DETACH DATABASE msgdb;');
|
|
}
|
|
return cb(err);
|
|
}
|
|
);
|
|
} |