Files
minisrv/zefie_wtvp_minisrv/includes/WTVNews.js
zefie c2a3081afd v0.9.36
- BREAKING CHANGE from v0.9.35 and eariler: Move accounts into subfolder of SessionStore
 - viewergen and viewer updates from @GraspYonOx
 - new homepage theme inspired by @GraspYonOx
 - connect setup also mostly by @GraspYonOx
 - numerous bug fixes
 - nntp-server-zefie is now on npmjs
 - implement proper nodejs debugging
   - will start to phase out using console.log for actual debugging
   - existing "debug" (verbose) messages will stay as is
   - future code debugging will use debug() to debug WIP, therefore not showing to most users if it is accidently left in
2022-11-29 08:29:31 -05:00

532 lines
24 KiB
JavaScript

class WTVNews {
minisrv_config = null;
newsie = require('newsie').default;
strftime = require('strftime');
wtvshared = null;
service_name = null;
client = null;
username = null;
password = null;
posting_allowed = true;
debug = null;
constructor(minisrv_config, service_name) {
this.minisrv_config = minisrv_config;
this.service_name = service_name;
const { WTVShared } = require("./WTVShared.js");
this.wtvshared = new WTVShared(minisrv_config);
this.debug = require('debug')('WTVNews');
}
initializeUsenet(host, port = 119, tls_options = null, username = null, password = null) {
// use local self-signed cert for local server
var newsie_options = {
host: host,
port: port,
tlsPort: (tls_options !== null) ? true : false,
}
if (newsie_options.tlsPort) newsie_options.tlsOptions = tls_options;
this.client = new this.newsie(newsie_options);
if (username && password) {
this.username = username;
this.password = password;
}
}
connectUsenet() {
return new Promise((resolve, reject) => {
this.client.connect().then((response) => {
if (response.code == 200 || response.code == 201) {
if (response.code == 201) this.posting_allowed = false;
if (this.username && this.password) {
this.client.authInfoUser(this.username).then((res) => {
if (res.code == "381") {
res.authInfoPass(this.password).then((res) => {
if (res.code == 281) resolve(true);
else reject(res.description);
}).catch((e) => {
console.error(" * WTVNews Error:", "Command: connect", e);
reject("Could not connect to upstream usenet server");
});
} else {
reject(res.description)
}
}).catch((e) => {
console.error(" * WTVNews Error:", "Command: connect", e);
reject("Could not connect to upstream usenet server");
});
} else {
resolve(true);
}
}
}).catch((e) => {
console.error(" * WTVNews Error:", "Command: connect", e);
reject("Could not connect to upstream usenet server");
});
});
}
listGroup(group, page = 0, limit = 100, raw_range = null) {
// list of articles from group
return new Promise((resolve, reject) => {
this.selectGroup(group).then((res) => {
if (!raw_range) {
var range = {
start: (limit * page) + res.group.low,
}
range.end = range.start + limit;
if (page) range.start++;
if (range.end > res.high) delete range.group.end;
} else {
range = raw_range;
}
this.client.listGroup(group, range).then((data) => {
resolve(data);
}).catch((e) => {
console.error(" * WTVNews Error:", "Command: listGroup", e);
reject(`No such group <b>${group}</b>`);
});
}).catch((e) => {
console.error(" * WTVNews Error:", "Command: selectGroup", e);
});
})
}
processGroupList(list) {
if (list) return list.newsgroups;
else return null;
}
listGroups(search = null) {
// list of groups on the server
return new Promise((resolve, reject) => {
if (!search) {
this.client.list().then((data) => {
console.log('listGroups data', data)
resolve(this.processGroupList(data));
}).catch((e) => {
console.error(" * WTVNews Error:", "Command: listGroups (all)", e);
reject(e);
});
} else {
this.client.listNewsgroups((search === '*') ? '*' : '*' + search + '*').then((data) => {
resolve(this.processGroupList(data));
}).catch((e) => {
console.error(" * WTVNews Error:", "Command: listGroups (search)", search, e);
reject(e);
});
}
})
}
selectGroup(group) {
return new Promise((resolve, reject) => {
this.client.group(group).then((response) => {
if (response.code == 211) resolve(response);
else reject(`No such group <b>${group}</b>`);
}).catch((e) => {
console.error(" * WTVNews Error:", "Command: selectGroup", e);
reject(`Error selecting group <b>${group}</b>`);
});
});
}
getArticle(articleID, get_next_last = true) {
var articleID = parseInt(articleID);
return new Promise((resolve, reject) => {
var promises = [];
this.client.article(articleID).then((data) => {
if (get_next_last) {
// ask server for next article
promises.push(new Promise((resolve, reject) => {
this.client.next().then((res) => {
data.next_article = res.article.articleNumber;
resolve(data.next_article);
}).catch((e) => {
data.next_article = null;
resolve(data.next_article);
})
}));
// ask server for previous article
promises.push(new Promise((resolve, reject) => {
this.client.last().then((res) => {
data.prev_article = res.article.articleNumber;
if (data.prev_article === articleID) {
// do it again, needed this for CodoSoft NNTPd?
this.client.article(data.prev_article).then(() => {
this.client.last().then((res) => {
data.prev_article = res.article.articleNumber;
resolve(data.prev_article);
}).catch(() => {
data.prev_article = null;
resolve(data.prev_article);
});
}).catch(() => {
data.prev_article = null;
resolve(data.prev_article);
});
} else {
resolve(data.prev_article);
}
}).catch(() => {
data.prev_article = null;
resolve(data.prev_article);
})
}));
Promise.all(promises).then(() => {
var self = this;
if (data.article.headers) Object.keys(data.article.headers).forEach((k) => {
data.article.headers[k] = self.decodeCharset(data.article.headers[k])
});
resolve(data);
});
} else {
var self = this;
if (data.article.headers) Object.keys(data.article.headers).forEach((k) => {
data.article.headers[k] = self.decodeCharset(data.article.headers[k])
});
resolve(data);
}
}).catch((e) => {
reject(`Error reading article ID ${articleID}`);
console.error(" * WTVNews Error:", "Command: article", "args:", articleID, "Error:", e);
});
});
}
decodeCharset(string) {
var regex = /=\?{1}(.+)\?{1}([B|Q])\?{1}(.+)\?{1}=/;
var decoded = null;
var check = string.match(regex);
if (check) {
var match = check[0];
var charset = check[1];
var encoding = check[2];
var encoded_text = check[3];
switch (encoding) {
case "B":
var buffer = new Buffer.from(encoded_text, 'base64')
decoded = buffer.toString(charset).replace(/[^\x00-\x7F]/g, "");;
break;
case "Q":
// unimplemented
return string;
}
if (decoded) return string.replace(match, decoded);
}
return string;
}
getHeader(articleID) {
return new Promise((resolve, reject) => {
this.client.head(articleID).then((data) => {
var self = this;
if (data.article.headers) Object.keys(data.article.headers).forEach((k) => {
data.article.headers[k] = self.decodeCharset(data.article.headers[k])
});
resolve(data);
}).catch((e) => {
reject(`Error getting header for article ID ${articleID}`);
console.error(" * WTVNews Error:", "Command: head -", "Article ID: " + articleID, e);
});
});
}
getHeaderFromMessage(message, header) {
var response = null;
if (message.article.headers) {
Object.keys(message.article.headers).forEach((k) => {
if (k.toLowerCase() == header.toLowerCase()) {
response = message.article.headers[k];
return false;
}
})
}
return response;
}
quitUsenet() {
return new Promise((resolve, reject) => {
this.client.quit().then((response) => {
if (response.code == 205) resolve(true);
else {
console.error(" * WTVNews Error:", "Command: quit", e);
reject(`Unexpected response code ${response.code}`);
}
}).catch((e) => {
console.error(" * WTVNews Error:", "Command: quit", e);
reject("Error quitting usenet session");
})
});
}
postToGroup(group, from_addr, msg_subject, msg_body, article = null, headers = null) {
return new Promise((resolve, reject) => {
var promises = [];
var messageid = null;
this.connectUsenet()
.then(() => {
if (article) {
promises.push(new Promise((resolve, reject) => {
this.selectGroup(group).then((res) => {
this.getArticleMessageID(article).then((data) => {
messageid = data;
resolve(data);
}).catch((e) => {
console.log('Error getting articleID',article, e)
reject(e)
});
}).catch((e) => {
console.log('Error selecting group', e)
reject(e)
});
}));
}
Promise.all(promises).then(() => {
this.client.post()
.then((response) => {
if (response.code == 340) {
var articleData = {};
articleData.headers = {
'Relay-Version': "version zefie_wtvp_minisrv " + this.minisrv_config.version + "; site " + this.minisrv_config.config.domain_name,
'Posting-Version': "version zefie_wtvp_minisrv " + this.minisrv_config.version + "; site " + this.minisrv_config.config.domain_name,
'Path': "@" + this.minisrv_config.config.domain_name,
'From': from_addr,
'Newsgroups': group,
'Subject': msg_subject || "(No subject)",
'Message-ID': "<" + this.wtvshared.generateString(16) + "@" + this.minisrv_config.config.domain_name + ">",
'Date': this.strftime('%a, %-d %b %Y %H:%M:%S %z', new Date())
}
if (headers) {
Object.keys(headers).forEach((k) => {
articleData.headers[k] = headers[k];
});
}
if (messageid) {
articleData.headers.References = messageid;
articleData.headers['In-Reply-To'] = messageid;
}
if (msg_body) articleData.body = msg_body.split("\n");
else articleData.body = [];
response.send(articleData).then((response) => {
this.client.quit();
if (response.code !== 240) {
reject("Could not send post. Server returned error " + response.code);
} else {
resolve(true);
}
}).catch((e) => {
console.error(e);
this.client.quit();
reject("Could not send post. Server returned error " + response.code);
});
} else {
this.client.quit();
console.error('usenet upstream uncaught error', e);
reject("Could not send post. Server returned unknown error");
};
}).catch((e) => {
console.error('could not connect to server', e);
reject("could not connect to server");
});
});
});
});
}
getArticleMessageID(articleID) {
return new Promise((resolve, reject) => {
this.client.article(articleID).then((data) => {
resolve(data.article.messageId);
}).catch((e) => {
console.error("error getting messageID from article", articleID, e)
reject(e);
});
});
}
getHeaderObj(NGArticles) {
return new Promise((resolve, reject) => {
var messages = [];
var promises = [];
for (var article in NGArticles) {
if (article == "getCaseInsensitiveKey") continue;
promises.push(new Promise((resolve, reject) => {
this.getHeader(NGArticles[article]).then((data) => {
if (data.article) messages.push(data.article)
resolve();
}).catch((e) => {
reject(e);
});
}));
}
if (promises.length > 0) {
Promise.all(promises).then(() => {
if (messages.length > 0) resolve(messages);
}).catch((e) => {
reject("Could not read message list", e);
});
} else {
resolve(messages);
}
});
}
parseAttachments(message) {
var contype = this.getHeaderFromMessage(message, 'Content-Type');
if (contype) {
var regex = /multipart\/mixed\; boundary=\"(.+)\"/i;
var match = contype.match(regex);
if (match) {
var boundary = "--" + match[1];
var body = message.article.body.join("\n").split(boundary);
var attachments = [];
var i = 0;
var message_body = '';
var message_type = 'text/plain';
body.forEach((element) => {
var section_type = null;
var section = element.split("\n");
attachments[i] = {};
section.forEach((line) => {
this.debug('section_type', section_type, 'line', line);
var section_header_match = line.match(/^Content\-/i)
if (section_header_match) {
var section_match = line.match(/^Content\-Type\: (.+)\;/i)
if (section_match) {
this.debug('section_match', section_match)
section_type = section_match[1];
if (section_match[1].match("text/plain")) {
message_type = section_type;
} else {
section_type = section_match[1];
attachments[i].content_type = section_match[1]
}
this.debug('section_type', section_type)
}
section_match = line.match(/^Content\-Disposition\: (.+)\;/i)
if (section_match) {
section_match = line.match(/^Content\-Disposition\: (.+)\; filename=\"(.+)\"/i)
if (section_match) attachments[i].filename = section_match[2];
}
section_match = line.match(/^Content-Transfer-Encoding: (.+)/i)
if (section_match) attachments[i].content_encoding = section_match[1];
} else {
if (section_type != null) {
if (section_type.match("text/plain")) message_body += line;
else {
if (attachments[i].data) attachments[i].data += line;
else attachments[i].data = line;
}
}
}
})
if (attachments[i].content_type) i++;
})
attachments.pop();
return {
text: message_body,
text_type: message_type || "text/plain",
attachments: attachments
}
} else {
var message_body = '';
if (message.article.body) message_body = message.article.body.join("\n")
return { text: message_body }
}
} else {
var message_body = '';
if (message.article.body) message_body = message.article.body.join("\n")
return { text: message_body }
}
}
sortByResponse(messages) {
var sorted = [];
var message_id_roots = [];
var message_relations = [];
Object.keys(messages).forEach((k) => {
var messageId = messages[k].messageId;
var ref = messages[k].headers.REFERENCES;
if (ref) {
var res = message_id_roots.find(e => e.messageId == ref);
if (res) {
// see if its attached to a root post
if (message_relations[res.messageId]) message_relations[res.messageId].push({ "messageId": messageId, "index": k });
else message_relations[res.messageId] = [{ "messageId": messageId, "index": k }];
} else {
// see if its related to a relation
if (Object.keys(message_relations).length > 0) {
var found = false;
Object.keys(message_relations).forEach((j) => {
if (message_relations[j].length > 0) {
Object.keys(message_relations[j]).forEach((h) => {
if (found) return;
if (message_relations[j][h].messageId == ref) {
var searchref = messages[message_relations[j][h].index].headers.REFERENCES || null;
var mainref = null;
while (searchref !== null) {
var searchart = messages.find(e => e.messageId == searchref);
var searchref = searchart.headers.REFERENCES || null;
}
mainref = searchart.messageId;
message_relations[mainref].push({ "messageId": messageId, "index": k });
found = true;
} else {
// no relation, missing reference, add as root
message_id_roots.push({ "messageId": messageId, "index": k });
}
});
}
})
} else {
message_id_roots.push({ "messageId": messageId, "index": k });
}
}
}
else {
message_id_roots.push({ "messageId": messageId, "index": k });
}
});
// sort the relations, putting root articles first, followed by their relations
var message_roots_sorted = [];
Object.keys(message_id_roots).forEach((k) => {
// sort relations by date
var article = messages[message_id_roots[k].index];
var article_date = Date.parse(article.headers.DATE);
message_roots_sorted.push({ "article": article, "relation": null, "date": article_date });
});
message_roots_sorted.sort((a, b) => { return (a.date - b.date) });
Object.keys(message_roots_sorted).forEach((k) => {
sorted.push(message_roots_sorted[k]);
if (message_relations[message_id_roots[k].messageId]) {
var relations = [];
Object.keys(message_relations[message_id_roots[k].messageId]).forEach((j) => {
// sort relations by date
var article = messages[message_relations[message_id_roots[k].messageId][j].index];
var article_date = Date.parse(article.headers.DATE);
relations.push({ "article": article, "relation": message_id_roots[k].messageId || null, "date": article_date })
});
relations.sort((a, b) => { return (a.date - b.date) });
Object.keys(relations).forEach((j) => {
sorted.push(relations[j]);
});
}
})
return sorted;
}
}
module.exports = WTVNews;