initial work on wtv-mail system:
- WTVMail Class - MailStore functions - Can show user mail intro page (see home.js for link example) - Create initial welcome email (poop for now) when creating mailstore - Can list Inbox - no sending yet - no reading yet - no receiving yet
This commit is contained in:
zefie
217
zefie_wtvp_minisrv/WTVMail.js
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217
zefie_wtvp_minisrv/WTVMail.js
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class WTVMail {
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fs = require('fs');
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path = require('path');
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uuid = require('uuid');
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ssid = null;
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unread_mail = 0;
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inbox_store = null;
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sent_store = null;
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saved_store = null;
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minisrv_config = [];
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wtvshared = null;
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wtvmime = null;
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wtvclient = null;
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mailstore_dir = null;
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is_guest = null;
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mailboxes = null;
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constructor(minisrv_config, ssid, WTVClientSessionData) {
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if (!minisrv_config) throw ("minisrv_config required");
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var WTVShared = require('./WTVShared.js')['WTVShared'];
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var WTVMime = require('./WTVMime.js');
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this.minisrv_config = minisrv_config;
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this.wtvshared = new WTVShared(minisrv_config);
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this.wtvmime = new WTVMime(minisrv_config);
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this.wtvclient = WTVClientSessionData;
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this.is_guest = !this.wtvclient.isRegistered();
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this.ssid = ssid;
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this.unread_mail = this.wtvclient.getSessionData("subscriber_unread_mail") ? this.wtvclient.getSessionData("subscriber_unread_mail") : 0;
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this.mailboxes = [
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// referenced by id, so order is important!
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"Inbox",
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"Sent",
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"Saved",
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"Trash"
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];
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}
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mailstoreExists() {
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if (!this.isguest) {
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if (this.mailstore_dir === null) {
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// set mailstore directory local var so we don't call the function every time
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var userstore_dir = this.wtvclient.getUserStoreDirectory();
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// MailStore
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var store_dir = "MailStore" + this.path.sep;
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this.mailstore_dir = userstore_dir + store_dir;
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}
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return this.fs.existsSync(this.mailstore_dir);
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}
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return null;
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}
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mailboxExists(mailboxid) {
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if (mailboxid > this.mailboxes.length) return null;
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var mailbox_dir = null;
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if (this.mailstoreExists()) {
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var mailbox_name = this.getMailboxById(mailboxid);
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if (!mailbox_name) return null;
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var mailbox_dir = mailbox_name + this.path.sep;
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var store_dir = this.mailstore_dir + mailbox_dir;
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}
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return (store_dir !== null) ? this.fs.existsSync(store_dir) : false;
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}
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createMailstore() {
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if (this.mailstoreExists() === false) {
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if (!this.fs.existsSync(this.mailstore_dir)) this.fs.mkdirSync(this.mailstore_dir, { recursive: true });
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return true;
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}
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return false;
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}
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getMailboxById(mailboxid) {
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return (mailboxid < this.mailboxes.length - 1) ? this.mailboxes[mailboxid] : false;
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}
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getMailboxStoreDir(mailboxid) {
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if (this.mailboxExists(mailboxid)) {
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var mailbox_name = this.getMailboxById(mailboxid);
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return this.mailstore_dir + mailbox_name + this.path.sep;
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}
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return null;
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}
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createMailbox(mailboxid) {
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var mailbox_exists = this.mailboxExists(mailboxid);
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if (mailbox_exists === false) {
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var mailbox_name = this.getMailboxById(mailboxid);
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var mailbox_dir = mailbox_name + this.path.sep;
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var store_dir = this.mailstore_dir + mailbox_dir;
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if (!this.fs.existsSync(store_dir)) this.fs.mkdirSync(store_dir, { recursive: true });
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return true;
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}
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return mailbox_exists;
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}
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createMessageID() {
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return this.uuid.v1();
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}
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createMessage(mailboxid, from_addr, to_addr, msgbody, subject = null, from_name = null, to_name = null, date = null, known_sender = false) {
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if (this.createMailbox(mailboxid)) {
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if (!date) date = Math.floor(Date.now() / 1000);
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var mailbox_path = this.getMailboxStoreDir(mailboxid);
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var message_file = this.createMessageID() + ".zmsg";
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var message_file_out = mailbox_path + message_file;
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var message_data = {
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"from_addr": from_addr,
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"from_name": from_name,
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"to_addr": to_addr,
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"to_name": to_name,
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"date": date,
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"subject": subject,
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"body": msgbody,
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"known_sender": known_sender
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}
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try {
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if (this.fs.existsSync(message_file_out)) {
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console.log(" * ERROR: Message with this UUID already exists (should never happen). Message lost.");
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return false;
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}
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// encode message into json
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var result = this.fs.writeFileSync(message_file_out, JSON.stringify(message_data));
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if (!result) return false;
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// rely on filesystem times for sorting as it is quicker then reading every file
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var file_timestamp = new Date(date * 1000);
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fs.utimesSync(message_file, Date.now(), file_timestamp);
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if (!result) console.error(" WARNING: Setting timestamp on " + message_file + " failed, mail dates will be inaccurate.");
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} catch (e) {
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console.error(" # MailErr: Mail Store failed\n", e, "\n", message_file_out, "\n", message_data ,"\n");
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}
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return false;
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}
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}
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createWelcomeMessage() {
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var from_addr = (this.minisrv_config.config.service_owner_account) ? this.minisrv_config.config.service_owner_account : this.minisrv_config.config.service_owner;
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from_addr += "@" + this.minisrv_config.config.service_name;
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var from_name = this.minisrv_config.config.service_owner
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var to_addr = this.wtvclient.getSessionData("subscriber_username") + "@" + this.minisrv_config.config.service_name;
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var to_name = this.wtvclient.getSessionData("subscriber_name");
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var subj = "Welcome to " + this.minisrv_config.config.service_name;
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var msg = "poop";
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return this.createMessage(0, from_addr, to_addr, msg, subj, from_name, to_name, null, true);
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}
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getMessage(mailboxid, messageid) {
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if (this.createMailbox(mailboxid)) {
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var mailbox_path = this.getMailboxStoreDir(mailboxid);
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var message_file = messageid + ".zmsg";
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var message_file_in = mailbox_path + this.path.sep + message_file;
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var message_data_raw = null;
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if (this.fs.existsSync(message_file_in)) message_data_raw = this.fs.readFileSync(message_file_in);
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else console.error(" # MailErr: could not find ", message_file_in);
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if (message_data_raw) {
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var message_data = JSON.parse(message_data_raw);
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if (message_data) {
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message_data.id = messageid;
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return message_data;
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}
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else console.error(" # MailErr: could not parse json in ", message_file_in);
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}
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}
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return false;
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}
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listMessages(mailboxid, limit, reverse_sort = false, offset = 0) {
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if (this.createMailbox(mailboxid)) {
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var mailbox_path = this.getMailboxStoreDir(mailboxid);
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var self = this;
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var files = this.fs.readdirSync(mailbox_path)
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.map(function (v) {
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return {
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name: v,
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time: self.fs.statSync(mailbox_path + self.path.sep + v).mtime.getTime()
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};
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})
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.sort(function (a, b) {
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if (reverse_sort) return b.time - a.time;
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else return a.time - b.time;
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})
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.map(function (v) {
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if (v.name.substring((v.name.length - 5)) === ".zmsg") return v.name.substring(0, (v.name.length - 5));
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});
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if (files.length == 0) return false; // no messages
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else {
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// todo filter previous results when offset
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var messagelist_out = new Array();
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Object.keys(files).forEach(function (k) {
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var message = self.getMessage(mailboxid, files[k]);
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if (message) messagelist_out.push(mailboxid, message);
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else console.error(" # MailErr: reading message ID: ", files[k]);
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})
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return messagelist_out.filter(function (n) { return n; });
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}
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}
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return null; // error
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}
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countMessages(mailboxid) {
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var messages = this.listMessages(mailboxid, false);
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return (messages.length) ? messages.length : 0;
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}
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}
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module.exports = WTVMail;
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