Add initial blocking of new users in chat

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")) {

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);

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;