Web chat

app/http/endpoints/manage/sendmessage.go

@@ -0,0 +1,76 @@
+package manage
+
+import (
+	"fmt"
+	"github.com/TicketsBot/GoPanel/config"
+	"github.com/TicketsBot/GoPanel/database/table"
+	"github.com/TicketsBot/GoPanel/utils"
+	"github.com/TicketsBot/GoPanel/utils/discord"
+	"github.com/TicketsBot/GoPanel/utils/discord/endpoints/channel"
+	"github.com/TicketsBot/GoPanel/utils/discord/objects"
+	"github.com/gin-gonic/contrib/sessions"
+	"github.com/gin-gonic/gin"
+	"strconv"
+)
+
+func SendMessage(ctx *gin.Context) {
+	store := sessions.Default(ctx)
+	if store == nil {
+		return
+	}
+	defer store.Save()
+
+	if utils.IsLoggedIn(store) {
+		userIdStr := store.Get("userid").(string)
+		userId, err := utils.GetUserId(store)
+		if err != nil {
+			ctx.String(500, err.Error())
+			return
+		}
+
+		// Verify the guild exists
+		guildIdStr := ctx.Param("id")
+		guildId, err := strconv.ParseInt(guildIdStr, 10, 64)
+		if err != nil {
+			ctx.Redirect(302, config.Conf.Server.BaseUrl) // TODO: 404 Page
+			return
+		}
+
+		// Get object for selected guild
+		var guild objects.Guild
+		for _, g := range table.GetGuilds(userIdStr) {
+			if g.Id == guildIdStr {
+				guild = g
+				break
+			}
+		}
+
+		// Verify the user has permissions to be here
+		if !guild.Owner && !table.IsAdmin(guildId, userId) {
+			ctx.Redirect(302, config.Conf.Server.BaseUrl) // TODO: 403 Page
+			return
+		}
+
+		// Get ticket UUID from URL and verify it exists
+		ticketChan := make(chan table.Ticket)
+		go table.GetTicket(ctx.Param("uuid"), ticketChan)
+		ticket := <-ticketChan
+		exists := ticket != table.Ticket{}
+
+		contentType := discord.ApplicationJson
+
+		if exists {
+			content := fmt.Sprintf("**%s**: %s", store.Get("name").(string), ctx.PostForm("message"))
+			if len(content) > 2000 {
+				content = content[0:1999]
+			}
+
+			endpoint := channel.CreateMessage(int(ticket.Channel))
+			err = endpoint.Request(store, &contentType, channel.CreateMessageBody{
+				Content: content,
+			}, nil)
+		}
+	}
+
+	ctx.Redirect(301, ctx.Request.URL.String())
+}

app/http/endpoints/manage/ticketview.go

@@ -10,9 +10,13 @@ import (
 	"github.com/TicketsBot/GoPanel/utils/discord/objects"
 	"github.com/gin-gonic/contrib/sessions"
 	"github.com/gin-gonic/gin"
+	"regexp"
 	"strconv"
+	"strings"
 )
 
+var MentionRegex, _ = regexp.Compile("<@(\\d+)>")
+
 func TicketViewHandler(ctx *gin.Context) {
 	store := sessions.Default(ctx)
 	if store == nil {
@@ -53,7 +57,9 @@ func TicketViewHandler(ctx *gin.Context) {
 
 		// Get ticket UUID from URL and verify it exists
 		uuid := ctx.Param("uuid")
-		ticket := table.GetTicket(uuid)
+		ticketChan := make(chan table.Ticket)
+		go table.GetTicket(uuid, ticketChan)
+		ticket := <-ticketChan
 		exists := ticket != table.Ticket{}
 
 		// If invalid ticket UUID, take user to ticket list
@@ -77,12 +83,31 @@ func TicketViewHandler(ctx *gin.Context) {
 		// Format messages, exclude unneeded data
 		var messagesFormatted []map[string]interface{}
 		for _, message := range utils.Reverse(messages) {
+			content := message.Content
+
+			// Format mentions properly
+			match := MentionRegex.FindAllStringSubmatch(content, -1)
+			for _, mention := range match {
+				if len(mention) >= 2 {
+					mentionedId, err := strconv.ParseInt(mention[1], 10, 64); if err != nil {
+						continue
+					}
+
+					ch := make(chan string)
+					go table.GetUsername(mentionedId, ch)
+					content = strings.ReplaceAll(content, fmt.Sprintf("<@%d>", mentionedId), fmt.Sprintf("@%s", <-ch))
+				}
+			}
+
 			messagesFormatted = append(messagesFormatted, map[string]interface{}{
 				"username": message.Author.Username,
-				"content": message.Content,
+				"content": content,
 			})
 		}
 
+		premium := make(chan bool)
+		go utils.IsPremiumGuild(store, guildIdStr, premium)
+
 		utils.Respond(ctx, template.TemplateTicketView.Render(map[string]interface{}{
 			"name":    store.Get("name").(string),
 			"guildId": guildIdStr,
@@ -93,6 +118,8 @@ func TicketViewHandler(ctx *gin.Context) {
 			"error": errorMessage,
 			"messages": messagesFormatted,
 			"ticketId": ticket.TicketId,
+			"include_mock": true,
+			"premium": <-premium,
 		}))
 	}
 }

app/http/endpoints/manage/webchatws.go

@@ -0,0 +1,176 @@
+package manage
+
+import (
+	"fmt"
+	"github.com/TicketsBot/GoPanel/database/table"
+	"github.com/TicketsBot/GoPanel/utils"
+	"github.com/TicketsBot/GoPanel/utils/discord"
+	"github.com/TicketsBot/GoPanel/utils/discord/endpoints/channel"
+	"github.com/TicketsBot/GoPanel/utils/discord/objects"
+	"github.com/gin-gonic/contrib/sessions"
+	"github.com/gin-gonic/gin"
+	"github.com/gorilla/websocket"
+	"strconv"
+	"sync"
+)
+
+var upgrader = websocket.Upgrader{
+	ReadBufferSize:  1024,
+	WriteBufferSize: 1024,
+}
+
+var SocketsLock sync.Mutex
+var Sockets []*Socket
+
+type (
+	Socket struct {
+		Ws     *websocket.Conn
+		Guild  string
+		Ticket int
+	}
+
+	WsEvent struct {
+		Type string
+		Data interface{}
+	}
+
+	AuthEvent struct {
+		Guild  string
+		Ticket string
+	}
+)
+
+func WebChatWs(ctx *gin.Context) {
+	store := sessions.Default(ctx)
+	if store == nil {
+		return
+	}
+	defer store.Save()
+
+	if utils.IsLoggedIn(store) {
+		conn, err := upgrader.Upgrade(ctx.Writer, ctx.Request, nil)
+		if err != nil {
+			fmt.Println(err.Error())
+			return
+		}
+
+		socket := &Socket{
+			Ws: conn,
+		}
+
+		conn.SetCloseHandler(func(code int, text string) error {
+			i := -1
+			SocketsLock.Lock()
+
+			for index, element := range Sockets {
+				if element == socket {
+					i = index
+					break
+				}
+			}
+
+			if i != -1 {
+				Sockets = Sockets[:i+copy(Sockets[i:], Sockets[i+1:])]
+			}
+			SocketsLock.Unlock()
+
+			return nil
+		})
+
+		SocketsLock.Lock()
+		Sockets = append(Sockets, socket)
+		SocketsLock.Unlock()
+
+		userIdStr := store.Get("userid").(string)
+		userId, err := utils.GetUserId(store)
+		if err != nil {
+			conn.Close()
+			return
+		}
+
+		var guildId string
+		var guildIdParsed int64
+		var ticket int
+
+		for {
+			var evnt WsEvent
+			err := conn.ReadJSON(&evnt)
+			if err != nil {
+				break
+			}
+
+			if guildId == "" && evnt.Type != "auth" {
+				conn.Close()
+				break
+			} else if evnt.Type == "auth" {
+				data := evnt.Data.(map[string]interface{})
+
+				guildId = data["guild"].(string)
+				ticket, err = strconv.Atoi(data["ticket"].(string)); if err != nil {
+					conn.Close()
+				}
+
+				socket.Guild = guildId
+				socket.Ticket = ticket
+
+				// Verify the guild exists
+				guildIdParsed, err = strconv.ParseInt(guildId, 10, 64)
+				if err != nil {
+					fmt.Println(err.Error())
+					conn.Close()
+					return
+				}
+
+				// Get object for selected guild
+				var guild objects.Guild
+				for _, g := range table.GetGuilds(userIdStr) {
+					if g.Id == guildId {
+						guild = g
+						break
+					}
+				}
+
+				// Verify the user has permissions to be here
+				if !guild.Owner && !table.IsAdmin(guildIdParsed, userId) {
+					fmt.Println(err.Error())
+					conn.Close()
+					return
+				}
+
+				// Verify the guild is premium
+				premium := make(chan bool)
+				go utils.IsPremiumGuild(store, guildId, premium)
+				if !<-premium {
+					conn.Close()
+					return
+				}
+			} else if evnt.Type == "send" {
+				data := evnt.Data.(string)
+
+				if data == "" {
+					continue
+				}
+
+				// Get ticket UUID from URL and verify it exists
+				ticketChan := make(chan table.Ticket)
+				go table.GetTicketById(guildIdParsed, ticket, ticketChan)
+				ticket := <-ticketChan
+				exists := ticket != table.Ticket{}
+
+				contentType := discord.ApplicationJson
+
+				if exists {
+					content := fmt.Sprintf("**%s**: %s", store.Get("name").(string), data)
+					if len(content) > 2000 {
+						content = content[0:1999]
+					}
+
+					endpoint := channel.CreateMessage(int(ticket.Channel))
+					err = endpoint.Request(store, &contentType, channel.CreateMessageBody{
+						Content: content,
+					}, nil)
+				}
+			}
+		}
+	}
+}

app/http/server.go

@@ -66,7 +66,12 @@ func StartServer() {
 	router.GET("/manage/:id/tickets", manage.TicketListHandler)
 
 	// /manage/:id/tickets/view/:uuid
-	//router.GET("/manage/:id/tickets/view/:uuid", manage.TicketViewHandler)
+	router.GET("/manage/:id/tickets/view/:uuid", manage.TicketViewHandler)
+
+	// POST /manage/:id/tickets/view/:uuid
+	router.POST("/manage/:id/tickets/view/:uuid", manage.SendMessage)
+
+	router.GET("/webchat", manage.WebChatWs)
 
 	if err := router.Run(config.Conf.Server.Host); err != nil {
 		panic(err)

cache/redis.go

@@ -0,0 +1,25 @@
+package cache
+
+import (
+	"fmt"
+	"github.com/TicketsBot/GoPanel/config"
+	"github.com/go-redis/redis"
+)
+
+type RedisClient struct {
+	*redis.Client
+}
+
+var Client RedisClient
+
+func NewRedisClient() RedisClient {
+	client := redis.NewClient(&redis.Options{
+		Addr:     fmt.Sprintf("%s:%d", config.Conf.Redis.Host, config.Conf.Redis.Port),
+		Password: config.Conf.Redis.Password,
+		PoolSize: config.Conf.Redis.Threads,
+	})
+
+	return RedisClient{
+		client,
+	}
+}

cache/uriparser.go

@@ -0,0 +1,21 @@
+package cache
+
+import "net/url"
+
+type RedisURI struct {
+	Addr string
+	Password string
+}
+
+func ParseURI(raw string) RedisURI {
+	parsed, err := url.Parse(raw); if err != nil {
+		panic(err)
+	}
+
+	passwd, _ := parsed.User.Password()
+
+	return RedisURI{
+		Addr: parsed.Host,
+		Password: passwd,
+	}
+}

cache/webchat.go

@@ -0,0 +1,41 @@
+package cache
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/TicketsBot/GoPanel/app/http/endpoints/manage"
+)
+
+type TicketMessage struct {
+	GuildId  string `json:"guild"`
+	TicketId int    `json:"ticket"`
+	Username string `json:"username"`
+	Content  string `json:"content"`
+}
+
+func (c *RedisClient) ListenForMessages() {
+	pubsub := c.Subscribe("tickets:webchat:inboundmessage")
+
+	for {
+		msg, err := pubsub.ReceiveMessage(); if err != nil {
+			fmt.Println(err.Error())
+			continue
+		}
+
+		var decoded TicketMessage
+		if err := json.Unmarshal([]byte(msg.Payload), &decoded); err != nil {
+			fmt.Println(err.Error())
+			continue
+		}
+
+		manage.SocketsLock.Lock()
+		for _, socket := range manage.Sockets {
+			if socket.Guild == decoded.GuildId && socket.Ticket == decoded.TicketId {
+				if err := socket.Ws.WriteJSON(decoded); err != nil {
+					fmt.Println(err.Error())
+				}
+			}
+		}
+		manage.SocketsLock.Unlock()
+	}
+}

cmd/panel/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"github.com/TicketsBot/GoPanel/app/http"
+	"github.com/TicketsBot/GoPanel/cache"
 	"github.com/TicketsBot/GoPanel/config"
 	"github.com/TicketsBot/GoPanel/database"
 	"math/rand"
@@ -13,5 +14,9 @@ func main() {
 
 	config.LoadConfig()
 	database.ConnectToDatabase()
+
+	cache.Client = cache.NewRedisClient()
+	go cache.Client.ListenForMessages()
+
 	http.StartServer()
 }

config.toml.example

@@ -23,8 +23,11 @@ threads=5
 
 [bot]
 token=""
+premium-lookup-proxy-url="http://localhost:3000"
+premium-lookup-proxy-key=""
 
 [redis]
 host="127.0.0.1"
 port=6379
 password=""
+threads=5

config/config.go

@@ -48,12 +48,15 @@ type (
 
 	Bot struct {
 		Token string
+		PremiumLookupProxyUrl string `toml:"premium-lookup-proxy-url"`
+		PremiumLookupProxyKey string `toml:"premium-lookup-proxy-key"`
 	}
 
 	Redis struct {
 		Host     string
 		Port     int
 		Password string
+		Threads  int
 	}
 )
 

database/table/premiumguilds.go

@@ -0,0 +1,72 @@
+package table
+
+import (
+	"github.com/TicketsBot/GoPanel/database"
+	"strings"
+	"time"
+)
+
+type PremiumGuilds struct {
+	Guild  int64 `gorm:"column:GUILDID;unique;primary_key"`
+	Expiry int64 `gorm:"column:EXPIRY"`
+	User int64 `gorm:"column:USERID"`
+	ActivatedBy int64 `gorm:"column:ACTIVATEDBY"`
+	Keys string `gorm:"column:KEYSUSED"`
+}
+
+func (PremiumGuilds) TableName() string {
+	return "premiumguilds"
+}
+
+func IsPremium(guild int64, ch chan bool) {
+	var node PremiumGuilds
+	database.Database.Where(PremiumGuilds{Guild: guild}).First(&node)
+
+	if node.Expiry == 0 {
+		ch <- false
+		return
+	}
+
+	current := time.Now().UnixNano() / int64(time.Millisecond)
+	ch <- node.Expiry > current
+}
+
+func AddPremium(key string, guild, userId, length, activatedBy int64) {
+	var expiry int64
+
+	hasPrem := make(chan bool)
+	go IsPremium(guild, hasPrem)
+	isPremium := <- hasPrem
+
+	if isPremium {
+		expiryChan := make(chan int64)
+		go GetExpiry(guild, expiryChan)
+		currentExpiry := <- expiryChan
+
+		expiry = currentExpiry + length
+	} else {
+		current := time.Now().UnixNano() / int64(time.Millisecond)
+		expiry = current + length
+	}
+
+	keysChan := make(chan []string)
+	go GetKeysUsed(guild, keysChan)
+	keys := <- keysChan
+	keys = append(keys, key)
+	keysStr := strings.Join(keys,",")
+
+	var node PremiumGuilds
+	database.Database.Where(PremiumGuilds{Guild: guild}).Assign(PremiumGuilds{Expiry: expiry, User: userId, ActivatedBy: activatedBy, Keys: keysStr}).FirstOrCreate(&node)
+}
+
+func GetExpiry(guild int64, ch chan int64) {
+	var node PremiumGuilds
+	database.Database.Where(PremiumGuilds{Guild: guild}).First(&node)
+	ch <- node.Expiry
+}
+
+func GetKeysUsed(guild int64, ch chan []string) {
+	var node PremiumGuilds
+	database.Database.Where(PremiumGuilds{Guild: guild}).First(&node)
+	ch <- strings.Split(node.Keys, ",")
+}

database/table/tickets.go

@@ -29,8 +29,14 @@ func GetOpenTickets(guild int64) []Ticket {
 	return tickets
 }
 
-func GetTicket(uuid string) Ticket {
+func GetTicket(uuid string, ch chan Ticket) {
 	var ticket Ticket
 	database.Database.Where(&Ticket{Uuid: uuid}).First(&ticket)
-	return ticket
+	ch <- ticket
+}
+
+func GetTicketById(guild int64, id int, ch chan Ticket) {
+	var ticket Ticket
+	database.Database.Where(&Ticket{Guild: guild, TicketId: id}).First(&ticket)
+	ch <- ticket
 }

database/table/username.go

@@ -2,7 +2,6 @@ package table
 
 import (
 	"github.com/TicketsBot/GoPanel/database"
-	"github.com/TicketsBot/GoPanel/utils"
 )
 
 type UsernameNode struct {
@@ -16,10 +15,10 @@ func (UsernameNode) TableName() string {
 	return "usernames"
 }
 
-func GetUsername(id int64) string {
+func GetUsername(id int64, ch chan string) {
 	node := UsernameNode{Name: "Unknown"}
 	database.Database.Where(&UsernameNode{Id: id}).First(&node)
-	return utils.Base64Decode(node.Name)
+	ch <- node.Name
 }
 
 func GetUserNodes(ids []int64) []UsernameNode {
@@ -30,6 +29,6 @@ func GetUserNodes(ids []int64) []UsernameNode {
 
 func GetUserId(name, discrim string) int64 {
 	var node UsernameNode
-	database.Database.Where(&UsernameNode{Name: utils.Base64Encode(name), Discriminator: discrim}).First(&node)
+	database.Database.Where(&UsernameNode{Name: name, Discriminator: discrim}).First(&node)
 	return node.Id
 }

database/table/votes.go

@@ -0,0 +1,22 @@
+package table
+
+import (
+	"github.com/TicketsBot/GoPanel/database"
+	"time"
+)
+
+type Votes struct {
+	Id int64 `gorm:"type:bigint;unique_index;primary_key"`
+	VoteTime time.Time
+}
+
+func (Votes) TableName() string {
+	return "votes"
+}
+
+func HasVoted(owner int64, ch chan bool) {
+	var node Votes
+	database.Database.Where(Votes{Id: owner}).First(&node)
+
+	ch <- time.Now().Sub(node.VoteTime) < 24 * time.Hour
+}

public/static/css/discordmock.css

@@ -4,10 +4,15 @@
 @font-face{font-family:WhitneyMedium;font-style:medium;font-weight:600;src:url('https://discordapp.com/assets/be0060dafb7a0e31d2a1ca17c0708636.woff') format('woff')}
 @font-face{font-family:Whitney;font-style:bold;font-weight:700;src:url('https://discordapp.com/assets/8e12fb4f14d9c4592eb8ec9f22337b04.woff') format('woff')}
 
+html {
+    overflow-y: hidden;
+}
+
 .discord-container {
     background-color: #2e3136;
-    border-radius: 25px;
+    border-radius: 4px;
-    height: 100vh;
+    height: 80vh;
+    max-height: 100vh;
     margin: 0;
     padding: 0;
     font-family: 'Whitney', sans-serif !important;
@@ -17,7 +22,7 @@
     background-color: #1e2124;
     height: 5vh;
     width: 100%;
-    border-radius: 25px 25px 0 0;
+    border-radius: 4px 4px 0 0;
     position: relative;
 
     text-align: center;
@@ -29,3 +34,40 @@
     color: white;
     padding-left: 20px;
 }
+
+#message-container {
+    height: 70vh;
+    max-height: 70vh;
+    position: relative;
+    overflow: scroll;
+    overflow-x: hidden;
+}
+
+.message {
+    color: white !important;
+    padding-left: 20px;
+}
+
+.message-input {
+    padding-top: 20px !important;
+    border-color: #2e3136 !important;
+    padding-left: 5px !important;
+    padding-right: 5px !important;
+    background-color: #2e3136 !important;
+    color: white !important;
+    height: 100%;
+    max-height: 100%;
+    min-height: 100%;
+}
+
+.form-control:focus {
+    border-color: #2e3136 !important;
+    background-color: #2e3136 !important;
+    color: white !important;
+}
+
+.message-input:focus {
+    border-color: #2e3136 !important;
+    background-color: #2e3136 !important;
+    color: white !important;
+}

public/templates/layouts/manage.mustache

@@ -62,9 +62,10 @@
     <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.6/umd/popper.min.js" integrity="sha384-wHAiFfRlMFy6i5SRaxvfOCifBUQy1xHdJ/yoi7FRNXMRBu5WHdZYu1hA6ZOblgut" crossorigin="anonymous"></script>
     <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/js/bootstrap.min.js" integrity="sha384-B0UglyR+jN6CkvvICOB2joaf5I4l3gm9GU6Hc1og6Ls7i6U/mkkaduKaBhlAXv9k" crossorigin="anonymous"></script>
 
-    <!-- Discord theme -->
+    {{#include_mock}}
-    <link href="/assets/css/discordmock.css" rel="stylesheet"/>
+      <!-- Discord theme -->
-
+      <link href="/assets/css/discordmock.css" rel="stylesheet"/>
+    {{/include_mock}}
 
     <!-- Icons -->
     <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.8.2/css/all.css" integrity="sha384-oS3vJWv+0UjzBfQzYUhtDYW+Pj2yciDJxpsK1OYPAYjqT085Qq/1cq5FLXAZQ7Ay" crossorigin="anonymous">

public/templates/views/ticketlist.mustache

@@ -23,8 +23,7 @@
                     <td>{{ticketId}}</td>
                     <td>{{username}}#{{discrim}}</td>
                     <td>{{#members}}{{username}}#{{discrim}}{{sep}}{{/members}}</td>
-                    <!--<td><a class="btn btn-primary btn-sm" role="button" href="/manage/{{guildId}}/tickets/view/{{uuid}}">View</a></td>-->
+                    <td><a class="btn btn-primary btn-sm" role="button" href="/manage/{{guildId}}/tickets/view/{{uuid}}">View</a></td>
-                    <td>Coming soon</td>
                   </tr>
                 {{/tickets}}
                 </tbody>

public/templates/views/ticketview.mustache

@@ -3,21 +3,30 @@
     <div class="row">
       <div class="col-md-12">
         <div class="card">
-          <div class="card-header">
-            <h4 class="card-title">Ticket List</h4>
-          </div>
           <div class="card-body">
             <div class="discord-container">
               <div class="channel-header">
                 <span class="channel-name">#ticket-{{ticketId}}</span>
               </div>
-              <div class="message-container">
+              <div id="message-container">
-                <div class="message">
+                {{#messages}}
-
+                  <div class="message">
-                </div>
+                    <b>{{username}}</b>
+                    {{content}}
+                  </div>
+                {{/messages}}
               </div>
               <div class="input-container">
-
+                <form action="javascript:sendMessage()">
+                  {{#premium}}
+                    <input type="text" class="form-control message-input" id="message" name="message"
+                           placeholder="Message #ticket-{{ticketId}}">
+                  {{/premium}}
+                  {{^premium}}
+                    <input type="text" class="form-control message-input" id="message" name="message"
+                           placeholder="Premium users get live messages and can respond through webchat" disabled>
+                  {{/premium}}
+                </form>
               </div>
             </div>
           </div>
@@ -48,3 +57,52 @@
     </script>
   </div>
 </div>
+
+<script>
+  // Scroll to bottom
+  container.scrollTop = container.scrollHeight;
+</script>
+
+{{#premium}}
+  <script>
+    ws = new WebSocket("ws://localhost:3001/webchat");
+
+    ws.onopen = (evt) => {
+      ws.send(JSON.stringify({
+        "type": "auth",
+        "data": {
+          "guild": "{{guildId}}",
+          "ticket": "{{ticketId}}"
+        }
+      }));
+    };
+
+    ws.onmessage = (evt) => {
+      let data = JSON.parse(evt.data);
+
+      let container = document.getElementById("message-container");
+
+      let element = document.createElement("div");
+      element.className = "message";
+      element.innerHTML = `
+      <b>${data.username}</b>
+      ${data.content}
+    `;
+
+      container.appendChild(element);
+
+      // Scroll to bottom
+      container.scrollTop = container.scrollHeight;
+    };
+
+    function sendMessage() {
+      let msg = document.getElementById("message").value;
+      document.getElementById("message").value = "";
+
+      ws.send(JSON.stringify({
+        "type": "send",
+        "data": msg
+      }))
+    }
+  </script>
+{{/premium}}

utils/discord/endpoints/channel/CreateMessage.go

@@ -0,0 +1,18 @@
+package channel
+
+import (
+	"fmt"
+	"github.com/TicketsBot/GoPanel/utils/discord"
+)
+
+type CreateMessageBody struct {
+	Content string `json:"content"`
+}
+
+func CreateMessage(id int) discord.Endpoint {
+	return discord.Endpoint{
+		RequestType: discord.POST,
+		AuthorizationType: discord.BOT,
+		Endpoint: fmt.Sprintf("/channels/%d/messages", id),
+	}
+}

utils/premiumutils.go

@@ -0,0 +1,104 @@
+package utils
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/TicketsBot/GoPanel/config"
+	"github.com/TicketsBot/GoPanel/database/table"
+	"github.com/TicketsBot/GoPanel/utils/discord/endpoints/guild"
+	"github.com/TicketsBot/GoPanel/utils/discord/objects"
+	"github.com/gin-gonic/contrib/sessions"
+	"github.com/robfig/go-cache"
+	"io/ioutil"
+	"net/http"
+	"strconv"
+	"time"
+)
+
+type ProxyResponse struct {
+	Premium bool
+	Tier int
+}
+
+var premiumCache = cache.New(10 * time.Minute, 10 * time.Minute)
+
+func IsPremiumGuild(store sessions.Session, guildIdRaw string, ch chan bool) {
+	if premium, ok := premiumCache.Get(guildIdRaw); ok {
+		ch<-premium.(bool)
+		return
+	}
+
+	guildId, err := strconv.ParseInt(guildIdRaw, 10, 64); if err != nil {
+		ch<-false
+		return
+	}
+
+	// First lookup by premium key, then votes, then patreon
+	keyLookup := make(chan bool)
+	go table.IsPremium(guildId, keyLookup)
+
+	if <-keyLookup {
+		if err := premiumCache.Add(guildIdRaw, true, 10 * time.Minute); err != nil {
+			fmt.Println(err.Error())
+		}
+
+		ch<-true
+	} else {
+		// Get guild object
+		var g objects.Guild
+		endpoint := guild.GetGuild(int(guildId))
+		go endpoint.Request(store, nil, nil, &g)
+
+		// Lookup votes
+		ownerId, err := strconv.ParseInt(g.OwnerId, 10, 64); if err != nil {
+			fmt.Println(err.Error())
+			ch <- false
+			return
+		}
+
+		hasVoted := make(chan bool)
+		table.HasVoted(ownerId, hasVoted)
+		if <-hasVoted {
+			ch <- true
+
+			if err := premiumCache.Add(guildIdRaw, true, 10 * time.Minute); err != nil {
+				fmt.Println(err.Error())
+			}
+
+			return
+		}
+
+		// Lookup Patreon
+		client := &http.Client{
+			Timeout: time.Second * 3,
+		}
+
+		url := fmt.Sprintf("%s/ispremium?key=%s&id=%s", config.Conf.Bot.PremiumLookupProxyUrl, config.Conf.Bot.PremiumLookupProxyKey, g.OwnerId)
+		req, err := http.NewRequest("GET", url, nil)
+
+		res, err := client.Do(req); if err != nil {
+			fmt.Println(err.Error())
+			ch<-false
+			return
+		}
+		defer res.Body.Close()
+
+		content, err := ioutil.ReadAll(res.Body); if err != nil {
+			fmt.Println(err.Error())
+			ch<-false
+			return
+		}
+
+		var proxyResponse ProxyResponse
+		if err = json.Unmarshal(content, &proxyResponse); err != nil {
+			fmt.Println(err.Error())
+			ch<-false
+			return
+		}
+
+		if err := premiumCache.Add(guildIdRaw, proxyResponse.Premium, 10 * time.Minute); err != nil {
+			fmt.Println(err.Error())
+		}
+		ch <-proxyResponse.Premium
+	}
+}