Gopher server revamp!
* gophermap support * More generic and flexible server
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Bryan Ashby
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@ -9,6 +9,7 @@ This document attempts to track **major** changes and additions in ENiGMA½. For
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* New `PV` ACS check for arbitrary user properties. See [ACS](./docs/configuration/acs.md) for details.
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* The `message` arg used by `msg_list` has been deprecated. Please starting using `messageIndex` for this purpose. Support for `message` will be removed in the future.
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* Added ability to export/download messages. This is enabled in the default menu. See `messageAreaViewPost` in [the default message base template](./misc/menu_templates/message_base.in.hjson) and look for the download options (`@method:addToDownloadQueue`, etc.) for details on adding to your system!
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* The Gopher server has had a revamp! Standard `gophermap` files are now served along with any other content you configure for your Gopher Hole! A default [gophermap](https://en.wikipedia.org/wiki/Gopher_(protocol)#Source_code_of_a_menu) can be found [in the misc directory](./misc/gophermap) that behaves like the previous implementation. See [Gopher docs](./docs/servers/gopher.md) for more information.
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## 0.0.11-beta
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* Upgraded from `alpha` to `beta` -- The software is far along and mature enough at this point!
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@ -263,7 +263,7 @@ module.exports = () => {
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port : 8070,
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publicHostname : 'another-fine-enigma-bbs.org',
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publicPort : 8070, // adjust if behind NAT/etc.
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bannerFile : 'gopher_banner.asc',
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staticRoot : paths.join(__dirname, './../gopher'),
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//
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// Set messageConferences{} to maps of confTag -> [ areaTag1, areaTag2, ... ]
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@ -27,6 +27,7 @@ const _ = require('lodash');
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const fs = require('graceful-fs');
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const paths = require('path');
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const moment = require('moment');
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const async = require('async');
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const ModuleInfo = exports.moduleInfo = {
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name : 'Gopher',
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@ -81,8 +82,8 @@ exports.getModule = class GopherModule extends ServerModule {
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this.publicHostname = config.contentServers.gopher.publicHostname;
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this.publicPort = config.contentServers.gopher.publicPort;
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this.addRoute(/^\/?\r\n$/, this.defaultGenerator);
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this.addRoute(/^\/msgarea(\/[a-z0-9_-]+(\/[a-z0-9_-]+)?(\/[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}(_raw)?)?)?\/?\r\n$/, this.messageAreaGenerator);
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this.addRoute(/^\/?msgarea(\/[a-z0-9_-]+(\/[a-z0-9_-]+)?(\/[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}(_raw)?)?)?\/?\r\n$/, this.messageAreaGenerator);
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this.addRoute(/^(\/?[^\t\r\n]*)\r\n$/, this.staticGenerator);
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this.server = net.createServer( socket => {
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socket.setEncoding('ascii');
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@ -161,22 +162,56 @@ exports.getModule = class GopherModule extends ServerModule {
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return `${itemType}${text}\t${selector}\t${hostname}\t${port}\r\n`;
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}
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defaultGenerator(selectorMatch, cb) {
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this.log.debug( { selector : selectorMatch[0] }, 'Serving default content');
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staticGenerator(selectorMatch, cb) {
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this.log.debug( { selector : selectorMatch[1] || '(gophermap)' }, 'Serving static content');
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let bannerFile = _.get(Config(), 'contentServers.gopher.bannerFile', 'gopher_banner.asc');
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bannerFile = paths.isAbsolute(bannerFile) ? bannerFile : paths.join(__dirname, '../../../misc', bannerFile);
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fs.readFile(bannerFile, 'utf8', (err, banner) => {
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if(err) {
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return cb('You have reached an ENiGMA½ Gopher server!');
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const requestedPath = selectorMatch[1];
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let path = this.resolveContentPath(requestedPath);
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if (!path) {
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return cb('Not found');
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}
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fs.stat(path, (err, stats) => {
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if (err) {
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return cb('Not found');
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}
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banner = splitTextAtTerms(banner).map(l => this.makeItem(ItemTypes.InfoMessage, l)).join('');
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banner += this.makeItem(ItemTypes.SubMenu, 'Public Message Area', '/msgarea');
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return cb(banner);
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let isGopherMap = false;
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if (stats.isDirectory()) {
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path = paths.join(path, 'gophermap');
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isGopherMap = true;
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}
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fs.readFile(path, isGopherMap ? 'utf8' : null, (err, content) => {
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if (err) {
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let content = 'You have reached an ENiGMA½ Gopher server!\r\n';
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content += this.makeItem(ItemTypes.SubMenu, 'Public Message Area', '/msgarea');
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return cb(content);
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}
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if (isGopherMap) {
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// Convert any UNIX style LF's to DOS CRLF's
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content = content.replace(/\r?\n/g, '\r\n');
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// variable support
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content = content
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.replace(/{publicHostname}/g, this.publicHostname)
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.replace(/{publicPort}/g, this.publicPort);
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}
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return cb(content);
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});
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});
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}
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resolveContentPath(requestPath) {
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const staticRoot = _.get(Config(), 'contentServers.gopher.staticRoot');
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const path = paths.resolve(staticRoot, `.${requestPath}`);
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if (path.startsWith(staticRoot)) {
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return path;
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}
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}
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notFoundGenerator(selector, cb) {
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this.log.debug( { selector }, 'Serving not found content');
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return cb('Not found');
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@ -3,7 +3,7 @@ layout: page
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title: Gopher Server
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---
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## The Gopher Content Server
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The Gopher *content server* provides access to publicly exposed message conferences and areas over Gopher (gopher://).
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The Gopher *content server* provides access to publicly exposed message conferences and areas over Gopher (gopher://) as well as any other content you wish to serve in your Gopher Hole!
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## Configuration
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Gopher configuration is found in `contentServers.gopher` in `config.hjson`.
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@ -11,14 +11,36 @@ Gopher configuration is found in `contentServers.gopher` in `config.hjson`.
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| Item | Required | Description |
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|------|----------|-------------|
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| `enabled` | :+1: | Set to `true` to enable Gopher |
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| `staticRoot` | :+1: | Sets the path serving as the static root path for all Gopher content. Defaults to `enigma-bbs/gopher`.<br>See also **Gophermap's** below |
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| `port` | :-1: | Override the default port of `8070` |
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| `publicHostName` | :+1: | Set the **public** hostname/domain that Gopher will serve to the outside world. Example: `myfancybbs.com` |
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| `publicHostname` | :+1: | Set the **public** hostname/domain that Gopher will serve to the outside world. Example: `myfancybbs.com` |
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| `publicPort` | :+1: | Set the **public** port that Gopher will serve to the outside world. |
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| `messageConferences` | :+1: | An map of *conference tags* to *area tags* that are publicly exposed via Gopher. See example below. |
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| `messageConferences` | :-1: | An map of *conference tags* to *area tags* that are publicly exposed via Gopher. See example below. |
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Notes on `publicHostName` and `publicPort`:
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Notes on `publicHostname` and `publicPort`:
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The Gopher protocol serves content that contains host/domain and port even when referencing it's own documents. Due to this, these members must be set to your publicly addressable Gopher server!
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## Gophermap's
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[Gophermap's](https://en.wikipedia.org/wiki/Gopher_(protocol)#Source_code_of_a_menu) are how to build menus for your Gopher Hole. Each map is a simple text file named `gophermap` (all lowercase, no extension) with DOS style CRLF endings.
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Within any directory nested within your `staticRoot` may live a `gophermap`. A template may be found in the `enigma-bbsmisc` directory.
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ENiGMA will pre-process `gophermap` files replacing in following variables:
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* `{publicHostname}`: The public hostname from your config.
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* `{publicPort}`: The public port from your config.
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:information_source: See [Wikipedia](https://en.wikipedia.org/wiki/Gopher_(protocol)#Source_code_of_a_menu) for more information on the `gophermap` format.
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:bulb: Tools such as [gfu](https://rawtext.club/~sloum/gfu.html) may help you with `gophermap`'s
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### Example Gophermap
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An example `gophermap` living in `enigma-bbs/gopher`:
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```
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iWelcome to a Gopher server! {publicHostname} {publicPort}
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1Public Message Area /msgarea {publicHostname} {publicPort}
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.
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```
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### Example
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Let's suppose you are serving Gopher for your BBS at `myfancybbs.com`. Your ENiGMA½ system is listening on the default Gopher `port` of 8070 but you're behind a firewall and want port 70 exposed to the public. Lastly, you want to expose some fsxNet areas:
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@ -26,9 +48,10 @@ Let's suppose you are serving Gopher for your BBS at `myfancybbs.com`. Your ENiG
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contentServers: {
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gopher: {
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enabled: true
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publicHostName: myfancybbs.com
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publicHostname: myfancybbs.com
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publicPort: 70
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// Expose some public message conferences/areas
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messageConferences: {
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fsxnet: { // fsxNet's conf tag
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// Areas of fsxNet we want to expose:
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@ -242,8 +242,8 @@
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port: XXXXX
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enabled: false
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// bannerFile path in misc/ by default. Full paths allowed.
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bannerFile: XXXXX
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// The root directory to serve gophermaps and other content
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staticRoot: XXXXX
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//
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// The Gopher Content Server can export message base
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@ -1,9 +0,0 @@
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_____________________ _____ ____________________ __________\_ /
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\__ ____/\_ ____ \ /____/ / _____ __ \ / ______/ // /___jp!
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// __|___// | \// |// | \// | | \// \ /___ /_____
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/____ _____| __________ ___|__| ____| \ / _____ \
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---- \______\ -- |______\ ------ /______/ ---- |______\ - |______\ /__/ // ___/
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/__ _\
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<*> ENiGMA½ // HTTPS://GITHUB.COM/NUSKOOLER/ENIGMA-BBS <*> /__/
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-------------------------------------------------------------------------------
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@ -0,0 +1,12 @@
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i_____________________ _____ ____________________ __________\_ /
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i\__ ____/\_ ____ \ /____/ / _____ __ \ / ______/ // /___jp!
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i// __|___// | \// |// | \// | | \// \ /___ /_____
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i/____ _____| __________ ___|__| ____| \ / _____ \
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i---- \______\ -- |______\ ------ /______/ ---- |______\ - |______\ /__/ // ___/
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i /__ _\
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i <*> ENiGMA½ // HTTPS://GITHUB.COM/NUSKOOLER/ENIGMA-BBS <*> /__/
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i
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i-------------------------------------------------------------------------------
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i
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1Public Message Area /msgarea {publicHostname} {publicPort}
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.
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@ -146,6 +146,12 @@ install_node_packages() {
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fi
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}
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copy_template_files() {
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if [[ ! -f "./gopher/gophermap" ]]; then
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cp "./misc/gophermap" "./gopher/gophermap"
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fi
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}
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enigma_footer() {
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log "ENiGMA½ installation complete!"
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echo -e "\e[1;33m"
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@ -189,6 +195,7 @@ install_nvm
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configure_nvm
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download_enigma_source
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install_node_packages
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copy_template_files
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enigma_footer
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} # this ensures the entire script is downloaded before execution
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