Allow channel path to be customizable

We now allow server operators to customize the /r/ part of the channel links
The new config option in the template is commented and the config module validates and will terminate with status 78 if an improper value is used.
We've also dropped some old cruft and uses a more elegant method to assign CHANNEL.name

Resolves #668

config.template.yaml

@@ -138,8 +138,6 @@ mail:
 #     5. Click "Server key"
 #     6. Under "APIs & auth" click "YouTube Data API" and then click "Enable API"
 youtube-v3-key: ''
-# Minutes between saving channel state to disk
-channel-save-interval: 5
 # Limit for the number of channels a user can register
 max-channels-per-user: 5
 # Limit for the number of accounts an IP address can register
@@ -147,6 +145,24 @@ max-accounts-per-ip: 5
 # Minimum number of seconds between guest logins from the same IP
 guest-login-delay: 60
 
+# Allows you to customize the path divider. The /r/ in http://localhost/r/yourchannel
+# Acceptable characters are a-z A-Z 0-9 _ and -
+channel-path: 'r'
+# Allows you to blacklist certain channels.  Users will be automatically kicked
+# upon trying to join one.
+channel-blacklist: []
+# Minutes between saving channel state to disk
+channel-save-interval: 5
+# Determines channel data storage mechanism.
+# Defaults to 'file', in which channel data is JSON stringified and saved to a file
+# in the `chandump/` folder.  This is the legacy behavior of CyTube.
+# The other possible option is 'database', in which case each key-value pair of
+# channel data is stored as a row in the `channel_data` database table.
+# To migrate legacy chandump files to the database, shut down CyTube (to prevent
+# concurrent updates), then run `node lib/channel-storage/migrate.js`.
+channel-storage:
+  type: 'file'
+
 # Configure statistics tracking
 stats:
   # Interval (in milliseconds) between data points - default 1h
@@ -208,10 +224,6 @@ playlist:
 # The server must be invoked with node --expose-gc index.js for this to have any effect.
 aggressive-gc: false
 
-# Allows you to blacklist certain channels.  Users will be automatically kicked
-# upon trying to join one.
-channel-blacklist: []
-
 # If you have ffmpeg installed, you can query metadata from raw files, allowing
 # server-synched raw file playback.  This requires the following:
 #   * ffmpeg must be installed on the server
@@ -231,16 +243,6 @@ setuid:
 # how long to wait in ms before changing uid/gid
   timeout: 15
 
-# Determines channel data storage mechanism.
-# Defaults to 'file', in which channel data is JSON stringified and saved to a file
-# in the `chandump/` folder.  This is the legacy behavior of CyTube.
-# The other possible option is 'database', in which case each key-value pair of
-# channel data is stored as a row in the `channel_data` database table.
-# To migrate legacy chandump files to the database, shut down CyTube (to prevent
-# concurrent updates), then run `node lib/channel-storage/migrate.js`.
-channel-storage:
-  type: 'file'
-
 # Allows for external services to access the system commandline
 # Useful for setups where stdin isn't available such as when using PM2
 service-socket:

docs/gdrive-userscript-serveradmins.md

@@ -21,4 +21,4 @@ example, for cytu.be I use:
 npm run generate-userscript CyTube http://cytu.be/r/* https://cytu.be/r/*
 ```
 
-This will generate `www/js/cytube-google-drive.user.js`.
+This will generate `www/js/cytube-google-drive.user.js`. If you've changed the channel path, be sure to take that into account.

src/bgtask.js

@@ -61,6 +61,7 @@ function initPasswordResetCleanup(Server) {
 }
 
 function initChannelDumper(Server) {
+    const chanPath = Config.get('channel-path');
     var CHANNEL_SAVE_INTERVAL = parseInt(Config.get("channel-save-interval"))
                                 * 60000;
     setInterval(function () {
@@ -70,9 +71,9 @@ function initChannelDumper(Server) {
             return Promise.delay(wait).then(() => {
                 if (!chan.dead && chan.users && chan.users.length > 0) {
                     return chan.saveState().tap(() => {
-                        LOGGER.info(`Saved /r/${chan.name}`);
+                        LOGGER.info(`Saved /${chanPath}/${chan.name}`);
                     }).catch(err => {
-                        LOGGER.error(`Failed to save /r/${chan.name}: ${err.stack}`);
+                        LOGGER.error(`Failed to save /${chanPath}/${chan.name}: ${err.stack}`);
                     });
                 }
             }).catch(error => {

src/channel-storage/migrator.js

@@ -114,6 +114,8 @@ function fixOldChandump(data) {
 }
 
 function migrate(src, dest, opts) {
+    const chanPath = Config.get('channel-path');
+
     return src.listChannels().then(names => {
         return Promise.reduce(names, (_, name) => {
             // A long time ago there was a bug where CyTube would save a different
@@ -143,11 +145,11 @@ function migrate(src, dest, opts) {
                 });
                 return dest.save(name, data);
             }).then(() => {
-                console.log(`Migrated /r/${name}`);
+                console.log(`Migrated /${chanPath}/${name}`);
             }).catch(ChannelNotFoundError, err => {
-                console.log(`Skipping /r/${name} (not present in the database)`);
+                console.log(`Skipping /${chanPath}/${name} (not present in the database)`);
             }).catch(err => {
-                console.error(`Failed to migrate /r/${name}: ${err.stack}`);
+                console.error(`Failed to migrate /${chanPath}/${name}: ${err.stack}`);
             });
         }, 0);
     });

src/config.js

@@ -70,7 +70,12 @@ var defaults = {
         "from-name": "CyTube Services"
     },
     "youtube-v3-key": "",
+    "channel-blacklist": [],
+    "channel-path": "r",
     "channel-save-interval": 5,
+    "channel-storage": {
+        type: "file"
+    },
     "max-channels-per-user": 5,
     "max-accounts-per-ip": 5,
     "guest-login-delay": 60,
@@ -102,7 +107,6 @@ var defaults = {
         "max-items": 4000,
         "update-interval": 5
     },
-    "channel-blacklist": [],
     ffmpeg: {
         enabled: false,
         "ffprobe-exec": "ffprobe"
@@ -114,9 +118,6 @@ var defaults = {
         "user": "nobody",
         "timeout": 15
     },
-    "channel-storage": {
-        type: "file"
-    },
     "service-socket": {
         enabled: false,
         socket: "service.sock"
@@ -390,6 +391,12 @@ function preprocessConfig(cfg) {
     });
     cfg["channel-blacklist"] = tbl;
 
+    /* Check channel path */
+    if(!/^[-\w]+$/.test(cfg["channel-blacklist"])){
+        LOGGER.error("Channel paths may only use the same characters as usernames and channel names.");
+        process.exit(78); // sysexits.h for bad config
+    }
+
     if (cfg["link-domain-blacklist"].length > 0) {
         cfg["link-domain-blacklist-regex"] = new RegExp(
                 cfg["link-domain-blacklist"].join("|").replace(/\./g, "\\."), "gi");

src/server.js

@@ -62,6 +62,7 @@ var Server = function () {
     self.announcement = null;
     self.infogetter = null;
     self.servers = {};
+    self.chanPath = Config.get('channel-path');
 
     // backend init
     var initModule;
@@ -264,7 +265,7 @@ Server.prototype.unloadChannel = function (chan, options) {
 
     if (!options.skipSave) {
         chan.saveState().catch(error => {
-            LOGGER.error(`Failed to save /r/${chan.name} for unload: ${error.stack}`);
+            LOGGER.error(`Failed to save /${this.chanPath}/${chan.name} for unload: ${error.stack}`);
         });
     }
 
@@ -354,9 +355,9 @@ Server.prototype.shutdown = function () {
     Promise.map(this.channels, channel => {
         try {
             return channel.saveState().tap(() => {
-                LOGGER.info(`Saved /r/${channel.name}`);
+                LOGGER.info(`Saved /${this.chanPath}/${channel.name}`);
             }).catch(err => {
-                LOGGER.error(`Failed to save /r/${channel.name}: ${err.stack}`);
+                LOGGER.error(`Failed to save /${this.chanPath}/${channel.name}: ${err.stack}`);
             });
         } catch (error) {
             LOGGER.error(`Failed to save channel: ${error.stack}`);
@@ -391,7 +392,7 @@ Server.prototype.handlePartitionMapChange = function () {
                 });
                 this.unloadChannel(channel, { skipSave: true });
             }).catch(error => {
-                LOGGER.error(`Failed to unload /r/${channel.name} for ` +
+                LOGGER.error(`Failed to unload /${this.chanPath}/${channel.name} for ` +
                                   `partition map flip: ${error.stack}`);
             });
         }

src/web/pug.js

@@ -16,7 +16,8 @@ function merge(locals, res) {
         loginDomain: Config.get("https.enabled") ? Config.get("https.full-address")
                                                  : Config.get("http.full-address"),
         csrfToken: typeof res.req.csrfToken === 'function' ? res.req.csrfToken() : '',
-        baseUrl: getBaseUrl(res)
+        baseUrl: getBaseUrl(res),
+        channelPath: Config.get("channel-path"),
     };
     if (typeof locals !== "object") {
         return _locals;

src/web/routes/channel.js

@@ -4,8 +4,8 @@ import { sendPug } from '../pug';
 import * as HTTPStatus from '../httpstatus';
 import { HTTPError } from '../../errors';
 
-export default function initialize(app, ioConfig) {
+export default function initialize(app, ioConfig, chanPath) {
-    app.get('/r/:channel', (req, res) => {
+    app.get(`/${chanPath}/:channel`, (req, res) => {
         if (!req.params.channel || !CyTubeUtil.isValidChannelName(req.params.channel)) {
             throw new HTTPError(`"${sanitizeText(req.params.channel)}" is not a valid ` +
                     'channel name.', { status: HTTPStatus.NOT_FOUND });

src/web/webserver.js

@@ -132,6 +132,8 @@ module.exports = {
      * Initializes webserver callbacks
      */
     init: function (app, webConfig, ioConfig, clusterClient, channelIndex, session) {
+        const chanPath = Config.get('channel-path');
+
         app.use((req, res, next) => {
             counters.add("http:request", 1);
             next();
@@ -147,7 +149,7 @@ module.exports = {
         }
         app.use(cookieParser(webConfig.getCookieSecret()));
         app.use(csrf.init(webConfig.getCookieDomain()));
-        app.use('/r/:channel', require('./middleware/ipsessioncookie').ipSessionCookieMiddleware);
+        app.use(`/${chanPath}/:channel`, require('./middleware/ipsessioncookie').ipSessionCookieMiddleware);
         initializeLog(app);
         require('./middleware/authorize')(app, session);
 
@@ -176,7 +178,7 @@ module.exports = {
             LOGGER.info('Enabled express-minify for CSS and JS');
         }
 
-        require('./routes/channel')(app, ioConfig);
+        require('./routes/channel')(app, ioConfig, chanPath);
         require('./routes/index')(app, channelIndex, webConfig.getMaxIndexEntries());
         app.get('/sioconfig(.json)?', handleLegacySocketConfig);
         require('./routes/socketconfig')(app, clusterClient);

templates/account-channels.pug

@@ -44,7 +44,7 @@ html(lang="en")
                             input(type="hidden", name="name", value=c.name)
                             button.btn.btn-xs.btn-danger(type="submit") Delete
                               span.glyphicon.glyphicon-trash
-                          a(href="/r/"+c.name, style="margin-left: 5px")= c.name
+                          a(href=`/${channelPath}/${c.name}`, style="margin-left: 5px")= c.name
             .col-lg-6.col-md-6
               h3 Register a new channel
               if newChannelError
@@ -57,7 +57,7 @@ html(lang="en")
                 .form-group
                   label.control-label(for="channelname") Channel URL
                   .input-group
-                    span.input-group-addon #{baseUrl}/r/
+                    span.input-group-addon #{baseUrl}/#{channelPath}/
                     input#channelname.form-control(type="text", name="name", maxlength="30", onkeyup="checkChannel()")
                   p#validate_channel.text-danger.pull-right
                 button#register.btn.btn-primary.btn-block(type="submit") Register

templates/channel.pug

@@ -11,7 +11,7 @@ html(lang="en")
         include nav
         +navheader()
         #nav-collapsible.collapse.navbar-collapse
-          - var cname = "/r/" + channelName
+          - var cname = `/${channelPath}/${channelName}`
           ul.nav.navbar-nav
             +navdefaultlinks(cname)
             li: a(href="javascript:void(0)", onclick="javascript:showUserOptions()") Options

templates/channeloptions.pug

@@ -86,7 +86,7 @@ mixin adminoptions
   #cs-adminoptions.tab-pane
     h4 Admin-Only Settings
     form.form-horizontal(action="javascript:void(0)")
-      - var defname = "CyTube - /r/" + channelName
+      - var defname = `CyTube - /${channelPath}/${channelName}`
       +textbox-auto("cs-pagetitle", "Page title", defname)
       +textbox-auto("cs-password", "Password", "leave blank to disable")
       +textbox-auto("cs-externalcss", "External CSS", "Stylesheet URL")

templates/head.pug

@@ -11,8 +11,16 @@ mixin head()
   link(href="/css/cytube.css", rel="stylesheet")
   link(id="usertheme", href=DEFAULT_THEME, rel="stylesheet")
 
+  if channelName
     script(type="text/javascript").
       var DEFAULT_THEME = '#{DEFAULT_THEME}';
+      var CHANNELPATH = '#{channelPath}';
+      var CHANNELNAME = '#{channelName}';
+  else
+    script(type="text/javascript").
+      var DEFAULT_THEME = '#{DEFAULT_THEME}';
+      var CHANNELPATH = '#{channelPath}';
+
   script(src="/js/theme.js")
   //[if lt IE 9]
     <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>

templates/index.pug

@@ -25,7 +25,7 @@ html(lang="en")
               tbody
                 each chan in channels
                   tr
-                    td: a(href="/r/"+chan.name) #{chan.pagetitle} (#{chan.name})
+                    td: a(href=`/${channelPath}/${chan.name}`) #{chan.pagetitle} (#{chan.name})
                     td= chan.usercount
                     td= chan.mediatitle
           .col-lg-3.col-md-3
@@ -37,6 +37,6 @@ html(lang="en")
     script(type="text/javascript").
       $("#channelname").keydown(function (ev) {
         if (ev.keyCode === 13) {
-          location.href = "/r/" + $("#channelname").val();
+          location.href = "/#{channelPath}/" + $("#channelname").val();
         }
       });

www/js/acp.js

@@ -453,8 +453,8 @@ console.log(channels[0]);
     channels.forEach(function (c) {
         var tr = $("<tr/>").appendTo(tbl);
         var name = $("<td/>").appendTo(tr);
-        $("<a/>").attr("href", "/r/" + c.name)
+        $("<a/>").attr("href", `/${CHANNELPATH}/${c.name}`)
-            .text(c.pagetitle + " (/r/" + c.name + ")")
+            .text(c.pagetitle + ` (/${CHANNELPATH}/${c.name})`)
             .appendTo(name);
         var usercount = $("<td/>").text(c.usercount).appendTo(tr);
         count += c.usercount;
@@ -475,7 +475,7 @@ console.log(channels[0]);
             .attr("title", "Unload")
             .appendTo(controlInner)
             .click(function () {
-                if (confirm("Are you sure you want to unload /r/" + c.name + "?")) {
+                if (confirm(`Are you sure you want to unload /${CHANNELPATH}/${c.name}?`)) {
                     socket.emit("acp-force-unload", {
                         name: c.name
                     });

www/js/callbacks.js

@@ -425,23 +425,6 @@ Callbacks = {
 
             if (!CLIENT.guest) {
                 socket.emit("initUserPLCallbacks");
-                if ($("#loginform").length === 0) {
-                    return;
-                }
-                var logoutform = $("<p/>").attr("id", "logoutform")
-                    .addClass("navbar-text pull-right")
-                    .insertAfter($("#loginform"));
-
-                $("<span/>").attr("id", "welcome").text("Welcome, " + CLIENT.name)
-                    .appendTo(logoutform);
-                $("<span/>").html("&nbsp;&middot;&nbsp;").appendTo(logoutform);
-                var domain = $("#loginform").attr("action").replace("/login", "");
-                $("<a/>").attr("id", "logout")
-                    .attr("href", domain + "/logout?redirect=/r/" + CHANNEL.name)
-                    .text("Logout")
-                    .appendTo(logoutform);
-
-                $("#loginform").remove();
             }
         }
     },

www/js/data.js

@@ -19,7 +19,7 @@ var CHANNEL = {
     css: "",
     js: "",
     motd: "",
-    name: false,
+    name: CHANNELNAME,
     usercount: 0,
     emotes: []
 };

www/js/ui.js

@@ -615,17 +615,6 @@ $("#shuffleplaylist").click(function() {
     }
 });
 
-/* load channel */
-
-var loc = document.location+"";
-var m = loc.match(/\/r\/([a-zA-Z0-9-_]+)/);
-if(m) {
-    CHANNEL.name = m[1];
-    if (CHANNEL.name.indexOf("#") !== -1) {
-        CHANNEL.name = CHANNEL.name.substring(0, CHANNEL.name.indexOf("#"));
-    }
-}
-
 /* channel ranks stuff */
 function chanrankSubmit(rank) {
     var name = $("#cs-chanranks-name").val();