First code commit
This commit is contained in:
Matte23
319
cmd/innkeeperbot/main.go
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319
cmd/innkeeperbot/main.go
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// InnkeeperBot, a bot to create and manage custom channels
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// Copyright (C) 2020 Matteo Schiff
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package main
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import (
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"flag"
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"fmt"
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"os"
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"os/signal"
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"strings"
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"syscall"
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"time"
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"github.com/bwmarrin/discordgo"
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)
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// Variables used for command line parameters
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var (
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Token string
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)
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func init() {
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flag.StringVar(&Token, "t", "", "Bot Token")
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flag.Parse()
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}
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func main() {
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// Create a new Discord session using the provided bot token.
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dg, err := discordgo.New("Bot " + Token)
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if err != nil {
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fmt.Println("error creating Discord session,", err)
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return
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}
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// Register the messageCreate func as a callback for MessageCreate events.
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dg.AddHandler(messageCreate)
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// Open a websocket connection to Discord and begin listening.
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err = dg.Open()
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if err != nil {
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fmt.Println("error opening connection,", err)
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return
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}
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// Wait here until CTRL-C or other term signal is received.
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fmt.Println("Bot is now running. Press CTRL-C to exit.")
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sc := make(chan os.Signal, 1)
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signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM, os.Interrupt, os.Kill)
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<-sc
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// Cleanly close down the Discord session.
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dg.Close()
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}
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// This function will be called (due to AddHandler above) every time a new
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// message is created on any channel that the autenticated bot has access to.
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func messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
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// Ignore all messages created by the bot itself
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if m.Author.ID == s.State.User.ID {
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return
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}
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// If the message starts with "!nc", create a new custom channel. Parameters: name, privacy [public or private](default public, optional)
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if strings.HasPrefix(m.Content, "!nch") {
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// Parameters should contains the channel name and the privacy preference
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parameters := strings.Fields(m.Content)
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if len(parameters) < 1 {
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s.ChannelMessageSend(m.ChannelID, "Please specify the channel name")
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return
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}
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category := searchChannel(s, m.GuildID, "Personalizzato", "")
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if category == nil {
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s.ChannelMessageSend(m.ChannelID, "Unable to create channel, category not found")
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return
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}
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newChannelData := discordgo.GuildChannelCreateData{
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Name: parameters[1],
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Type: discordgo.ChannelTypeGuildVoice,
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ParentID: category.ID}
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newChannel, _ := s.GuildChannelCreateComplex(m.GuildID, newChannelData)
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if len(parameters) > 2 && parameters[2] == "private" {
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roleEveryone := searchRole(s, m.GuildID, "@everyone")
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// Allow the channel creator and the bot to join the channel
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s.ChannelPermissionSet(newChannel.ID, s.State.User.ID, "member", 0x00100000, 0)
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s.ChannelPermissionSet(newChannel.ID, m.Author.ID, "member", 0x00100000, 0)
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// Deny anyone else joining this channel
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s.ChannelPermissionSet(newChannel.ID, roleEveryone.ID, "role", 0, 0x00100000)
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}
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s.ChannelMessageSend(m.ChannelID, "New channel created: "+parameters[1])
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}
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// If the message starts with "!dc", delete a custom channel. Parameters: name
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if strings.HasPrefix(m.Content, "!dch") {
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// Parameters should contains the name of the channel to delete
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parameters := strings.Fields(m.Content)
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if len(parameters) < 1 {
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s.ChannelMessageSend(m.ChannelID, "Please specify the channel name")
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return
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}
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category := searchChannel(s, m.GuildID, "Personalizzato", "")
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if category == nil {
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s.ChannelMessageSend(m.ChannelID, "Unable to delete channel, category not found")
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return
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}
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channel := searchChannel(s, m.GuildID, parameters[1], category.ID)
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if channel == nil {
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s.ChannelMessageSend(m.ChannelID, "Unable to delete channel, not found")
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} else if len(channel.PermissionOverwrites) == 0 {
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s.ChannelDelete(channel.ID)
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s.ChannelMessageSend(m.ChannelID, "Channel "+parameters[1]+" deleted")
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} else {
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// Check if the user has got permissions
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authorized := false
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for _, role := range channel.PermissionOverwrites {
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if role.ID == m.Author.ID {
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authorized = true
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}
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}
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if authorized {
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s.ChannelDelete(channel.ID)
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s.ChannelMessageSend(m.ChannelID, "Channel "+parameters[1]+" deleted")
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} else {
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s.ChannelMessageSend(m.ChannelID, "You don't have the permission to delete this channel")
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}
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}
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}
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// If the message starts with "!apc", enable an user to join the channel. Parameters: channel name, user name
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if strings.HasPrefix(m.Content, "!apc") {
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// Parameters should contains the channel name and the username
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parameters := strings.Fields(m.Content)
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if len(parameters) < 2 {
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s.ChannelMessageSend(m.ChannelID, "Please specify the channel name")
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return
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}
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category := searchChannel(s, m.GuildID, "Personalizzato", "")
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if category == nil {
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s.ChannelMessageSend(m.ChannelID, "Unable to delete channel, category not found")
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}
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channel := searchChannel(s, m.GuildID, parameters[1], category.ID)
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if channel == nil {
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s.ChannelMessageSend(m.ChannelID, "Channel "+parameters[1]+" not found, unable to add permission")
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return
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}
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user := searchUser(s, m.GuildID, parameters[2])
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if user == nil {
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s.ChannelMessageSend(m.ChannelID, "User "+parameters[2]+" not found")
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return
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}
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if len(channel.PermissionOverwrites) == 0 {
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s.ChannelMessageSend(m.ChannelID, "You cannot change permissions of a public channel")
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return
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}
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// Check if the user has got permissions
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authorized := false
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for _, role := range channel.PermissionOverwrites {
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if role.ID == m.Author.ID {
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authorized = true
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}
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}
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if authorized {
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s.ChannelPermissionSet(channel.ID, user.ID, "member", 0x00100000, 0)
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s.ChannelMessageSend(m.ChannelID, "User "+parameters[2]+" can now join "+parameters[1])
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} else {
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s.ChannelMessageSend(m.ChannelID, "You don't have the permission to authorize an user to join "+parameters[1])
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}
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}
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// If the message starts with "!rpc", remove from an user the permission to join the channel. Parameters: channel name, user name
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if strings.HasPrefix(m.Content, "!rpc") {
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// Parameters should contains the channel name and the username
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parameters := strings.Fields(m.Content)
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if len(parameters) < 2 {
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s.ChannelMessageSend(m.ChannelID, "Please specify the channel name")
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return
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}
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category := searchChannel(s, m.GuildID, "Personalizzato", "")
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if category == nil {
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s.ChannelMessageSend(m.ChannelID, "Unable to delete channel, category not found")
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}
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channel := searchChannel(s, m.GuildID, parameters[1], category.ID)
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if channel == nil {
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s.ChannelMessageSend(m.ChannelID, "Channel "+parameters[1]+" not found, unable to remove permission")
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return
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}
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user := searchUser(s, m.GuildID, parameters[2])
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if user == nil {
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s.ChannelMessageSend(m.ChannelID, "User "+parameters[2]+" not found")
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return
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}
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if len(channel.PermissionOverwrites) == 0 {
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s.ChannelMessageSend(m.ChannelID, "You cannot change permissions of a public channel")
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return
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}
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// Check if the user has got permissions
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authorized := false
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for _, role := range channel.PermissionOverwrites {
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if role.ID == m.Author.ID {
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authorized = true
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}
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}
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if authorized {
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s.ChannelPermissionDelete(channel.ID, user.ID)
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s.ChannelMessageSend(m.ChannelID, "User "+parameters[2]+" cannot join "+parameters[1]+" anymore")
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} else {
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s.ChannelMessageSend(m.ChannelID, "You don't have the permission to revoke the authorization of an user to join "+parameters[1])
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}
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}
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// If the message starts with "!rpc", remove from an user the permission to join the channel. Parameters: channel name, user name
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if strings.HasPrefix(m.Content, "!help") {
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embed := &discordgo.MessageEmbed{
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Author: &discordgo.MessageEmbedAuthor{},
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Description: "InnkeeperBot allow users to manage custom channels",
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Color: 0x00ff00,
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Fields: []*discordgo.MessageEmbedField{
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&discordgo.MessageEmbedField{
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Name: "!nch <channel> [private]",
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Value: "Create a new channel. Add the \"private\" keyword at the end of the command to make that channel private",
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},
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&discordgo.MessageEmbedField{
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Name: "!dch <channel>",
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Value: "Delete an existing channel",
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},
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&discordgo.MessageEmbedField{
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Name: "!apc <channel> <user>",
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Value: "Give an user the permission to join, edit and delete a channel",
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},
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&discordgo.MessageEmbedField{
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Name: "!rpc <channel> <user>",
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Value: "Remove join/edit/delete permission from an user",
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},
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},
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Timestamp: time.Now().Format(time.RFC3339),
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Title: "InnkeeperBot help",
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}
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s.ChannelMessageSendEmbed(m.ChannelID, embed)
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}
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}
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func searchChannel(s *discordgo.Session, guildID string, channelName string, channelParent string) (channel *discordgo.Channel) {
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channels, _ := s.GuildChannels(guildID)
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for _, channel := range channels {
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if channel.Name == channelName {
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if channelParent == "" || channel.ParentID == channelParent {
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return channel
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}
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}
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}
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return nil
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}
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func searchRole(s *discordgo.Session, guildID string, roleName string) (role *discordgo.Role) {
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roles, _ := s.GuildRoles(guildID)
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for _, role := range roles {
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if role.Name == roleName {
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return role
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}
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}
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return nil
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}
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func searchUser(s *discordgo.Session, guildID string, userName string) (role *discordgo.User) {
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users, _ := s.GuildMembers(guildID, "", 1000)
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for _, user := range users {
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if user.User.Username == userName {
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return user.User
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}
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}
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return nil
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}
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