mirror-nourybot/pkg/bot/send.go
2022-08-06 23:45:02 +02:00

120 lines
3.1 KiB
Go

package bot
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
)
// banphraseResponse is the data we receive back from
// the banphrase API
type banphraseResponse struct {
Banned bool `json:"banned"`
InputMessage string `json:"input_message"`
BanphraseData banphraseData `json:"banphrase_data"`
}
// banphraseData contains details about why a message
// was banphrased.
type banphraseData struct {
Id int `json:"id"`
Name string `json:"name"`
Phrase string `json:"phrase"`
Length int `json:"length"`
Permanent bool `json:"permanent"`
}
var (
banPhraseUrl = "https://pajlada.pajbot.com/api/v1/banphrases/test"
)
// CheckMessage checks a given message against the banphrase api.
// returns false, "okay" if a message is allowed
// returns true and a string with the reason if it was banned.
// More information:
// https://gist.github.com/pajlada/57464e519ba8d195a97ddcd0755f9715
func (bot *Bot) checkMessage(text string) (bool, string) {
// {"message": "AHAHAHAHA LUL"}
reqBody, err := json.Marshal(map[string]string{
"message": text,
})
if err != nil {
bot.logger.Error(err)
}
resp, err := http.Post(banPhraseUrl, "application/json", bytes.NewBuffer(reqBody))
if err != nil {
bot.logger.Error(err)
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
bot.logger.Error(err)
}
var responseObject banphraseResponse
json.Unmarshal(body, &responseObject)
// Bad Message
//
// {"phrase": "No gyazo allowed"}
reason := responseObject.BanphraseData.Name
if responseObject.Banned {
return true, fmt.Sprint(reason)
} else if !responseObject.Banned {
// Good message
return false, "okay"
}
// Couldn't contact api so assume it was a bad message
return true, "Banphrase API couldn't be reached monkaS"
}
// Send is used to send twitch replies and contains the necessary
// safeguards and logic for that.
func (bot *Bot) Send(target, message string) {
// Message we are trying to send is empty.
if len(message) == 0 {
return
}
// Since messages starting with `.` or `/` are used for special actions
// (ban, whisper, timeout) and so on, we place a emote infront of it so
// the actions wouldn't execute. `!` and `$` are common bot prefixes so we
// don't allow them either.
if message[0] == '.' || message[0] == '/' || message[0] == '!' || message[0] == '$' {
message = ":tf: " + message
}
// check the message for bad words before we say it
messageBanned, banReason := bot.checkMessage(message)
if messageBanned {
// Bad message, replace message and log it.
bot.TwitchClient.Say(target, "[BANPHRASED] monkaS")
bot.logger.Info("Banned message detected: ", banReason)
return
} else {
// In case the message we are trying to send is longer than the
// maximum allowed message length on twitch. We split the message
// in two parts.
if len(message) > 500 {
firstMessage := message[0:499]
secondMessage := message[499:]
bot.TwitchClient.Say(target, firstMessage)
bot.TwitchClient.Say(target, secondMessage)
return
}
// Message was fine.
bot.TwitchClient.Say(target, message)
return
}
}