Improve the way chat filter imports are handled

lib/channel-new.js

@@ -2124,6 +2124,62 @@ Channel.prototype.handleToggleLock = function (user) {
     this.handleSetLock(user, { locked: !this.playlistLock });
 };
 
+/**
+ * Imports a list of chat filters, replacing the current list
+ */
+Channel.prototype.importFilters = function (filters) {
+    this.filters = filters;
+    this.sendChatFilters(this.users);
+};
+
+/**
+ * Handles a user message to import a list of chat filters
+ */
+Channel.prototype.handleImportFilters = function (user, data) {
+    // TODO change to filterimport
+    if (!this.hasPermission(user, "filteredit")) {
+        return;
+    }
+
+    if (!(data instanceof Array)) {
+        return;
+    }
+
+    this.filters = data.map(this.validateChatFilter.bind(this))
+        .filter(function (f) { return f !== false; });
+
+    this.sendChatFilters(this.users);
+};
+
+/**
+ * Validates data for a chat filter
+ */
+Channel.prototype.validateChatFilter = function (f) {
+    if (typeof f.source !== "string" || typeof f.flags !== "string" ||
+        typeof f.replace !== "string") {
+        return false;
+    }
+
+    if (typeof f.name !== "string") {
+        f.name = f.source;
+    }
+
+    f.replace = f.replace.substring(0, 1000);
+    f.flags = f.flags.substring(0, 4);
+
+    // TODO XSS prevention
+    try {
+        new RegExp(f.source, f.flags);
+    } catch (e) {
+        return false;
+    }
+
+    var filter = new Filter(f.name, f.source, f.flags, f.replace);
+    filter.active = Boolean(f.active);
+    filter.filterlinks = Boolean(f.filterlinks);
+    return filter;
+};
+
 /**
  * Updates a chat filter, or adds a new one if the filter does not exist
  */
@@ -2163,29 +2219,11 @@ Channel.prototype.handleUpdateFilter = function (user, f) {
         return;
     }
 
-    if (typeof f.source !== "string" || typeof f.flags !== "string" ||
-        typeof f.replace !== "string") {
+    filter = this.validateChatFilter(f);
+    if (!filter) {
         return;
     }
 
-    if (typeof f.name !== "string") {
-        f.name = f.source;
-    }
-
-    f.replace = f.replace.substring(0, 1000);
-    f.flags = f.flags.substring(0, 4);
-
-    // TODO XSS prevention
-    try {
-        new RegExp(f.source, f.flags);
-    } catch (e) {
-        return;
-    }
-
-    var filter = new Filter(f.name, f.source, f.flags, f.replace);
-    filter.active = Boolean(f.active);
-    filter.filterlinks = Boolean(f.filterlinks);
-
     this.logger.log("%%% " + user.name + " updated filter: " + f.name);
     this.updateFilter(filter);
 };

lib/user.js

@@ -369,6 +369,10 @@ User.prototype.initChannelCallbacks = function () {
         self.channel.handleUpdateFilter(self, data);
     });
 
+    wrap("importFilters", function (data) {
+        self.channel.handleImportFilters(self, data);
+    });
+
     // REMOVE FILTER
     // https://www.youtube.com/watch?v=SxUU3zncVmI
     wrapTypecheck("removeFilter", function (data) {

templates/channel.jade

@@ -14,7 +14,7 @@ html(lang="en")
           ul.nav.navbar-nav
             mixin navdefaultlinks(cname)
             li: a(href="#", onclick="javascript:showUserOptions()") Options
-            li: a(href="#", onclick="javascript:$('#channeloptions').modal()") Channel Settings
+            li: a#showchansettings(href="#", onclick="javascript:$('#channeloptions').modal()") Channel Settings
           mixin navloginlogout(cname)
       section#mainpage
         .container

www/assets/js/ui.js

@@ -600,12 +600,5 @@ $("#cs-chatfilters-import").click(function () {
         return;
     }
 
-    var entries = $("#cs-chatfilters table").data("entries") || [];
-    entries.forEach(function (f) {
-        socket.emit("removeFilter", f);
-    });
-
-    data.forEach(function (f) {
-        socket.emit("updateFilter", f);
-    });
+    socket.emit("importFilters", data);
 });

www/assets/js/util.js

@@ -789,6 +789,7 @@ function handlePermissionChange() {
         handleModPermissions();
     }
 
+    setVisible("#showchansettings", CLIENT.rank >= 2);
     setVisible("#playlistmanagerwrap", CLIENT.rank >= 1);
     setVisible("#modflair", CLIENT.rank >= 2);
     setVisible("#adminflair", CLIENT.rank >= 255);