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Author SHA1 Message Date
Etzelia a772c0ffa3
Add rate limit and insult
Signed-off-by: Etzelia <etzelia@hotmail.com>
2020-06-15 21:19:20 -05:00
11 changed files with 159 additions and 3 deletions

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@ -7,10 +7,12 @@ BirbMC Discord generi-bot.
### Public ### Public
* `register <in-game name>` - Register to the Discord * `register <in-game name>` - Register to the Discord
* `links` - Get a list of dynamic links * `echoes` - Get a list of dynamic echo messages
* `<link>` - Get a specific link * `<echo>` - Get a specific echo message
* `fired` - Check how many times Carolyn has been fired * `fired` - Check how many times Carolyn has been fired
* `inspire` - Get a random "inspirational" message from [InspiroBot](https://inspirobot.me) * `inspire` - Get a random "inspirational" message from [InspiroBot](https://inspirobot.me)
* `dad` - Get a random dad joke from [icanhazdadjoke](https://icanhazdadjoke.com)
* `insult` - The fan favorite returns
### Moderation ### Moderation

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@ -22,6 +22,13 @@ type Config struct {
RegisterRole string `toml:"register_role"` RegisterRole string `toml:"register_role"`
RegisteredChannel string `toml:"registered_channel"` RegisteredChannel string `toml:"registered_channel"`
FiredRole string `toml:"fired_role"` FiredRole string `toml:"fired_role"`
MemeRate string `toml:"meme_rate"`
Insult struct {
Targets []string `toml:"target"`
Comparisons []string `toml:"comparison"`
Adjectives []string `toml:"adjectives"`
Nouns []string `toml:"nouns"`
} `toml:"insult"`
} }
type MessageRole struct { type MessageRole struct {

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@ -23,6 +23,10 @@ func init() {
return true return true
}, },
run: func(cmd commandInit) (string, error) { run: func(cmd commandInit) (string, error) {
if !memeRateLimit.Try() {
return "Woah, slow down!", nil
}
req, err := http.NewRequest(http.MethodGet, dadJokeAPI, nil) req, err := http.NewRequest(http.MethodGet, dadJokeAPI, nil)
if err != nil { if err != nil {
return "", err return "", err

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@ -2,6 +2,7 @@ package discord
import ( import (
"strings" "strings"
"time"
"go.etztech.xyz/sedbot/config" "go.etztech.xyz/sedbot/config"
"go.etztech.xyz/sedbot/database" "go.etztech.xyz/sedbot/database"
@ -14,6 +15,8 @@ import (
var ( var (
commands = make(map[string]command) commands = make(map[string]command)
messageRoleMap = make(map[string]map[string]string) messageRoleMap = make(map[string]map[string]string)
memeRateLimit *rateLimit
) )
type commandInit struct { type commandInit struct {
@ -50,6 +53,13 @@ func Bot(cfg *config.Config, db *database.Database) (*discordgo.Session, error)
bot.AddHandler(reactionAddHandler()) bot.AddHandler(reactionAddHandler())
bot.AddHandler(reactionRemoveHandler()) bot.AddHandler(reactionRemoveHandler())
// Rate limits
d, err := time.ParseDuration(cfg.MemeRate)
if err != nil {
return nil, err
}
memeRateLimit = NewRateLimit(d)
return bot, nil return bot, nil
} }

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@ -0,0 +1,10 @@
package discord
import (
"os"
"testing"
)
func TestMain(m *testing.M) {
os.Exit(m.Run())
}

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@ -33,7 +33,7 @@ func Echo(cfg *config.Config) {
} }
} }
combined := append([]string{echo.Name}, echo.Aliases...) combined := append([]string{echo.Name}, echo.Aliases...)
echoes = append(echoes, fmt.Sprintf("%s: %s", strings.Join(combined, ", "), echo.Help)) echoes = append(echoes, fmt.Sprintf("**%s**: %s", strings.Join(combined, ", "), echo.Help))
} }
commands["echoes"] = command{ commands["echoes"] = command{

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@ -8,6 +8,10 @@ func init() {
return true return true
}, },
run: func(cmd commandInit) (string, error) { run: func(cmd commandInit) (string, error) {
if !memeRateLimit.Try() {
return "Woah, slow down!", nil
}
sendTyping(cmd.session, cmd.message.ChannelID) sendTyping(cmd.session, cmd.message.ChannelID)
img, err := inspiro.Generate() img, err := inspiro.Generate()

41
discord/insult.go 100644
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@ -0,0 +1,41 @@
package discord
import (
"fmt"
r "math/rand"
"time"
)
func init() {
commands["insult"] = command{
validate: func(cmd commandInit) bool {
return true
},
run: func(cmd commandInit) (string, error) {
if !memeRateLimit.Try() {
return "Woah, slow down!", nil
}
args, err := cmd.message.ContentWithMoreMentionsReplaced(cmd.session)
if err != nil {
return "", err
}
insult := fmt.Sprintf("%s, your %s looks like %s, you %s %s.",
args,
random(cmd.config.Insult.Targets),
random(cmd.config.Insult.Comparisons),
random(cmd.config.Insult.Adjectives),
random(cmd.config.Insult.Nouns),
)
return insult, nil
},
help: "Insult someone!",
}
}
var rand = r.New(r.NewSource(time.Now().Unix()))
func random(list []string) string {
idx := rand.Intn(len(list) - 1)
return list[idx]
}

24
discord/utils.go 100644
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@ -0,0 +1,24 @@
package discord
import "time"
type rateLimit struct {
rate time.Duration
next time.Time
}
func NewRateLimit(rate time.Duration) *rateLimit {
return &rateLimit{
rate: rate,
next: time.Now(),
}
}
func (r *rateLimit) Try() bool {
now := time.Now()
if now.After(r.next) {
r.next = now.Add(r.rate)
return true
}
return false
}

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@ -0,0 +1,43 @@
package discord
import (
"testing"
"time"
)
func TestRateLimit(t *testing.T) {
now := func() {
t.Logf("Time: %s", time.Now().Format("15:04:05"))
}
now()
limit := NewRateLimit(time.Second * 2)
if ok := limit.Try(); !ok {
now()
t.Log("First try: Rate limit should pass.")
t.FailNow()
}
if ok := limit.Try(); ok {
now()
t.Log("Second try: Rate limit should fail.")
t.FailNow()
}
time.Sleep(time.Second)
if ok := limit.Try(); ok {
now()
t.Log("Third try: Rate limit should fail.")
t.FailNow()
}
time.Sleep(time.Second)
if ok := limit.Try(); !ok {
now()
t.Log("Fourth try: Rate limit should pass.")
t.FailNow()
}
}

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@ -25,6 +25,17 @@ registered_channel = "0"
# staff_roles are for staff commands # staff_roles are for staff commands
staff_roles = [] staff_roles = []
# meme_rate is the rate limit for memes
meme_rate = "3s"
# insults
# <args>, your <target> looks like <comparison>, you <adjective> <noun>
[insult]
targets = []
comparisons = []
adjectives = []
nouns = []
# echoes are any basic command -> message # echoes are any basic command -> message
[[echoes]] [[echoes]]
name = "discord" name = "discord"