Limit dice size and number of rolls.

bot/plugins_test.go

@@ -427,6 +427,24 @@ var eventTests = []struct {
 			},
 		},
 	},
+	{
+		desc: "roll 1000000",
+		in: irc.Message{
+			Command:  "PRIVMSG",
+			Trailing: ":roll 2000000",
+			Params:   []string{"#testchan-1"},
+			Prefix: &irc.Prefix{
+				Name: "idontexist",
+			},
+		},
+		expectedOut: []irc.Message{
+			{
+				Command:  "PRIVMSG",
+				Params:   []string{"#testchan-1"},
+				Trailing: "Number of rolls and dice size is limited to 1000000",
+			},
+		},
+	},
 	{
 		desc: "roll 0",
 		in: irc.Message{

bot/roll.go

@@ -42,6 +42,10 @@ func roll(output func(irc.Message), msg irc.Message) {
 		output(reply(msg, "Usage: :roll <sides int> <rolls int>, each roll is [0, n)+1, size has to be >0"))
 		return
 	}
+	if sides > 1000000 || rolls > 1000000 {
+		output(reply(msg, "Number of rolls and dice size is limited to 1000000"))
+		return
+	}
 
 	sum := rolls
 	for i := 0; i < rolls; i++ {