wip usenet stuff
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zefie
216
zefie_wtvp_minisrv/includes/WTVNewsServer.js
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216
zefie_wtvp_minisrv/includes/WTVNewsServer.js
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class WTVNewsServer {
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fs = require('fs');
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path = require('path');
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minisrv_config = null;
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strftime = require('strftime');
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wtvshared = null;
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username = null;
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password = null;
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using_auth = false;
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local_server = null;
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data_path = null;
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constructor(minisrv_config, local_server_port, using_auth = false, username = null, password = null) {
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this.minisrv_config = minisrv_config;
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const { WTVShared } = require("./WTVShared.js");
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this.wtvshared = new WTVShared(minisrv_config);
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const nntp_server = require('nntp-server');
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var nntp_commands = {
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...nntp_server.commands,
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"LAST": {
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head: 'LAST',
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validate: /^LAST( [^\s]+)$/i,
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// All supported params are defined in separate files
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run() {
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console.log('hi');
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throw new Error('method LAST is not implemented');
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}
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},
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"NEXT": {
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head: 'NEXT',
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validate: /^NEXT( [^\s]+)$/i,
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// All supported params are defined in separate files
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run() {
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console.log('hi');
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throw new Error('method NEXT is not implemented');
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}
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}
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}
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console.log(nntp_commands);
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this.username == username || null;
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this.password == password || null;
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this.using_auth = using_auth;
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if (using_auth && (!username && !password)) {
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// using auth, but no auth info specified, so randomly generate it
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this.username = this.wtvshared.generatePassword(8);
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this.password = this.wtvshared.generatePassword(16);
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}
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// nntp-server module overrides
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var self = this;
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nntp_server.prototype = {
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...nntp_server.prototype,
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_authenticate: function (session) {
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// authenticte
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if (session.authinfo_user == self.username && session.authinfo_pass == self.password) return Promise.resolve(true);
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return Promise.resolve(false);
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},
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_selectGroup: function (session, name) {
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// selectGroup
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var res = self.selectGroup(name);
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if (!res.failed) {
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session.group = res;
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return true;
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}
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return false;
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},
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_buildHead: function (session, message) {
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var out = "";
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Object.keys(message.headers).forEach((k) => {
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if (k.length > 0) out += `${k}: ${message.headers[k]}\r\n`;
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});
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out = out.substr(0,out.length - 2);
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return out;
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},
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_buildHeaderField: function (session, message, field) {
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var search = Object.keys(message.headers).find(e => (e.toLowerCase() == field.toLowerCase()));
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if (search) return message.headers[search];
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else return null;
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},
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_getArticle: function (session, message_id) {
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// getArticle
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return new Promise((resolve, reject) => {
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self.getArticle(session.group.name, message_id).then((res) => {
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resolve(res);
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}).catch((e) => {
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console.log(" * WTVNewsServer Error:", e);
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reject(e);
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});
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});
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},
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_buildBody: function (session, message) {
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return message.body;
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},
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_getRange: function (session, first, last) {
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var res = self.listGroup(session.group.name, first, last)
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if (res.failed) return false;
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session.group = res.group_data;
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return res.articleNumbers;
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}
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}
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this.data_path = this.wtvshared.getAbsolutePath(this.minisrv_config.config.SessionStore + '/minisrv_internal_nntp');
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this.createDataStore();
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var tls_path = this.wtvshared.getAbsolutePath(this.minisrv_config.config.ServiceDeps + '/wtv-news');
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var tls_options = {
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ca: this.fs.readFileSync(tls_path + this.path.sep + 'localserver_ca.pem'),
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key: this.fs.readFileSync(tls_path + this.path.sep + 'localserver_key.pem'),
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cert: this.fs.readFileSync(tls_path + this.path.sep + 'localserver_cert.pem'),
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}
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this.local_server = new nntp_server({ requireAuth: using_auth, tls: tls_options, secure: true, commands: nntp_commands });
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this.local_server.listen('nntps://localhost:' + local_server_port);
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}
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createDataStore() {
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if (!this.fs.existsSync(this.data_path)) return this.fs.mkdirSync(this.data_path);
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return true;
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}
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getGroupPath(group) {
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return this.data_path + this.path.sep + group;
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}
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getArticlePath(group, article) {
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return this.getGroupPath(group) + this.path.sep + article + ".newz";
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}
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createGroup(group) {
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if (!this.fs.existsSync(getGroupPath(group))) return this.fs.mkdirSync(getGroupPath(group));
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return true;
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}
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getArticle(group, article) {
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return new Promise((resolve, reject) => {
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const g = this.getArticlePath(group, article);
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if (!this.fs.existsSync(g)) return false;
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try {
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var data = JSON.parse(this.fs.readFileSync(g));
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resolve(data);
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} catch (e) {
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console.log(" * WTVNewsServer Error:", e);
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reject(e)
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}
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});
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}
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selectGroup(group) {
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var g = this.getGroupPath(group);
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var out = {
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total: 0,
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min_index: null,
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max_index: 0,
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name: group
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}
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try {
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this.fs.readdirSync(g).forEach(file => {
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var articleNumber = parseInt(file.split('.')[0]);
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if (out.min_index == null) out.min_index = articleNumber;
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else if (articleNumber < out.min_index) out.min_index = articleNumber;
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if (articleNumber > out.max_index) out.max_index = articleNumber;
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out.total++;
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});
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} catch (e) {
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out.failed = e;
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}
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if (out.min_index === null) out.min_index = 0;
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return out;
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}
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listGroup(group, start, end) {
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var g = this.getGroupPath(group);
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var out = {
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total: 0,
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min_index: null,
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max_index: 0,
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name: group
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}
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var articleNumbers = [];
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try {
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this.fs.readdirSync(g).forEach(file => {
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var articleNumber = parseInt(file.split('.')[0]);
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if (articleNumber < start) return;
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if (articleNumber > end) return false;
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if (out.min_index == null) out.min_index = articleNumber;
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else if (articleNumber < out.min_index) out.min_index = articleNumber;
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if (articleNumber > out.max_index) out.max_index = articleNumber;
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articleNumbers.push({ index: articleNumber });
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out.total++;
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});
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} catch (e) {
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console.log(e);
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out.failed = e;
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}
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if (out.min_index === null) out.min_index = 0;
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return {
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articleNumbers: articleNumbers,
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group_data: out
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}
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}
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}
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module.exports = WTVNewsServer;
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