From 701d470494e4ed4d0e3b8d98a36763dea98b71ba Mon Sep 17 00:00:00 2001
From: calzoneman <calzoneman@gmail.com>
Date: Wed, 27 Jul 2016 23:31:23 -0700
Subject: [PATCH] Add initial blocking of new users in chat

---
 src/channel/chat.js | 15 +++++++++++++++
 src/io/ioserver.js  |  4 +++-
 src/user.js         | 14 ++++++++++++++
 www/js/callbacks.js | 16 ++++++++++++++++
 4 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/src/channel/chat.js b/src/channel/chat.js
index 16204089..da2117b7 100644
--- a/src/channel/chat.js
+++ b/src/channel/chat.js
@@ -131,6 +131,21 @@ ChatModule.prototype.handleChatMsg = function (user, data) {
 
     // Limit to 240 characters
     data.msg = data.msg.substring(0, 240);
+
+    const firstSeen = user.getFirstSeenTime();
+    // TODO: configurable times
+    if (firstSeen > Date.now() - 5 * 60 * 1000) {
+        user.socket.emit("spamFiltered", {
+            reason: "NEW_USER_CHAT"
+        });
+        return;
+    } else if ((firstSeen > Date.now() - 24 * 60 * 60 * 1000) && data.msg.match(LINK)) {
+        user.socket.emit("spamFiltered", {
+            reason: "NEW_USER_CHAT_LINK"
+        });
+        return;
+    }
+
     // If channel doesn't permit them, strip ASCII control characters
     if (!this.channel.modules.options ||
         !this.channel.modules.options.get("allow_ascii_control")) {
diff --git a/src/io/ioserver.js b/src/io/ioserver.js
index 603f5b18..5afa011c 100644
--- a/src/io/ioserver.js
+++ b/src/io/ioserver.js
@@ -52,7 +52,8 @@ function handleAuth(socket, accept) {
         if (!err) {
             socket.user = {
                 name: user.name,
-                global_rank: user.global_rank
+                global_rank: user.global_rank,
+                registrationTime: new Date(user.time)
             };
         }
         accept(null, true);
@@ -235,6 +236,7 @@ function handleConnection(sock) {
         user.setFlag(Flags.U_REGISTERED);
         user.clearFlag(Flags.U_READY);
         user.account.name = sock.user.name;
+        user.registrationTime = sock.user.registrationTime;
         user.refreshAccount(function (err, account) {
             if (err) {
                 user.clearFlag(Flags.U_REGISTERED);
diff --git a/src/user.js b/src/user.js
index a538c9b2..e38d5648 100644
--- a/src/user.js
+++ b/src/user.js
@@ -449,4 +449,18 @@ User.prototype.refreshAccount = function (cb) {
     });
 };
 
+User.prototype.getFirstSeenTime = function getFirstSeenTime() {
+    if (this.registrationTime && this.socket.ipReputation && this.socket.ipReputation.first_seen) {
+        return Math.min(this.registrationTime.getTime(), this.socket.ipReputation.first_seen.getTime());
+    } else if (this.registrationTime) {
+        return this.registrationTime.getTime();
+    } else if (this.socket.ipReputation && this.socket.ipReputation.first_seen) {
+        return this.socket.ipReputation.first_seen.getTime();
+    } else {
+        Logger.errlog.log(`User "${this.getName()}" (IP: ${this.realip}) has neither ` +
+                "an IP reputation nor a registered account.");
+        return Date.now();
+    }
+};
+
 module.exports = User;
diff --git a/www/js/callbacks.js b/www/js/callbacks.js
index e894faa4..6b89328e 100644
--- a/www/js/callbacks.js
+++ b/www/js/callbacks.js
@@ -88,6 +88,22 @@ Callbacks = {
         scrollChat();
     },
 
+    spamFiltered: function(data) {
+        var message = "Spam Filtered.";
+        switch (data.reason) {
+            case "NEW_USER_CHAT":
+                message = "Your account is too new to chat in this channel.  " +
+                        "Please wait a while and try again.";
+                break;
+            case "NEW_USER_CHAT_LINK":
+                message = "Your account is too new to post links in this channel.  " +
+                        "Please wait a while and try again.";
+                break;
+        }
+
+        errDialog(message);
+    },
+
     needPassword: function (wrongpw) {
         var div = $("<div/>");
         $("<strong/>").text("Channel Password")