92 lines
1.7 KiB
Go
92 lines
1.7 KiB
Go
package main
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import (
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"html"
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"io"
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"log"
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"strings"
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"time"
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"github.com/gin-gonic/gin"
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)
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func rateLimit(c *gin.Context) {
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ip := c.ClientIP()
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value := ips.Add(ip, 1)
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if value > 800 {
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if int(value)%700 == 0 {
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log.Printf("ip block: %s, count: %f\n", ip, value)
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}
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c.AbortWithStatus(503)
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}
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}
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func index(c *gin.Context) {
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c.Redirect(301, "/room/hn")
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}
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func roomGET(c *gin.Context) {
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roomid := c.ParamValue("roomid")
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nick := c.FormValue("nick")
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if len(nick) < 2 {
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nick = ""
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}
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if len(nick) > 13 {
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nick = nick[0:12] + "..."
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}
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c.HTML(200, "room_login.templ.html", gin.H{
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"roomid": roomid,
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"nick": nick,
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"timestamp": time.Now().Unix(),
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})
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}
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func roomPOST(c *gin.Context) {
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roomid := c.ParamValue("roomid")
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nick := c.FormValue("nick")
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message := c.PostFormValue("message")
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message = strings.TrimSpace(message)
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validMessage := len(message) > 1 && len(message) < 200
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validNick := len(nick) > 1 && len(nick) < 14
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if !validMessage || !validNick {
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c.JSON(400, gin.H{
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"status": "failed",
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"error": "the message or nickname is too long",
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})
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return
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}
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post := gin.H{
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"nick": html.EscapeString(nick),
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"message": html.EscapeString(message),
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}
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messages.Add("inbound", 1)
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room(roomid).Submit(post)
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c.JSON(200, post)
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}
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func streamRoom(c *gin.Context) {
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roomid := c.ParamValue("roomid")
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listener := openListener(roomid)
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ticker := time.NewTicker(1 * time.Second)
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users.Add("connected", 1)
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defer func() {
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closeListener(roomid, listener)
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ticker.Stop()
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users.Add("disconnected", 1)
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}()
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c.Stream(func(w io.Writer) bool {
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select {
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case msg := <-listener:
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messages.Add("outbound", 1)
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c.SSEvent("message", msg)
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case <-ticker.C:
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c.SSEvent("stats", Stats())
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}
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return true
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})
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}
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