karaokards/internal/webserver/webserver.go

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package webserver
import (
"math/rand"
irc "git.martyn.berlin/martyn/karaokards/internal/irc"
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"github.com/gorilla/handlers"
"github.com/gorilla/mux"
"fmt"
"html/template"
"net/http"
"os"
"strings"
"time"
)
//var store = sessions.NewCookieStore(os.Getenv("SESSION_KEY"))
var ircBot *irc.KardBot
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func HealthHandler(response http.ResponseWriter, request *http.Request) {
response.Header().Add("Content-type", "text/plain")
fmt.Fprint(response, "I'm okay jack!")
}
func NotFoundHandler(response http.ResponseWriter, request *http.Request) {
response.Header().Add("X-Template-File", "html"+request.URL.Path)
response.WriteHeader(404)
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tmpl := template.Must(template.ParseFiles("web/404.html"))
tmpl.Execute(response, nil)
}
func CSSHandler(response http.ResponseWriter, request *http.Request) {
response.Header().Add("Content-type", "text/css")
tmpl := template.Must(template.ParseFiles("web/cover.css"))
tmpl.Execute(response, nil)
}
func RootHandler(response http.ResponseWriter, request *http.Request) {
request.URL.Path = "/index.html"
TemplateHandler(response, request)
}
func TemplateHandler(response http.ResponseWriter, request *http.Request) {
response.Header().Add("X-Template-File", "web"+request.URL.Path)
type TemplateData struct {
Prompt string
AvailCount int
ChannelCount int
MessageCount int
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}
// tmpl, err := template.New("html"+request.URL.Path).Funcs(template.FuncMap{
// "ToUpper": strings.ToUpper,
// "ToLower": strings.ToLower,
// }).ParseFiles("html"+request.URL.Path)
_ = strings.ToLower("Hello")
if strings.Index(request.URL.Path, "/") < 0 {
http.Error(response, "No slashes wat - "+request.URL.Path, http.StatusInternalServerError)
return
}
basenameSlice := strings.Split(request.URL.Path, "/")
basename := basenameSlice[len(basenameSlice)-1]
//fmt.Fprintf(response, "%q", basenameSlice)
tmpl, err := template.New(basename).Funcs(template.FuncMap{
"ToUpper": strings.ToUpper,
"ToLower": strings.ToLower,
}).ParseFiles("web" + request.URL.Path)
if err != nil {
http.Error(response, err.Error(), http.StatusInternalServerError)
return
// NotFoundHandler(response, request)
// return
}
var td = TemplateData{ircBot.Prompts[rand.Intn(len(ircBot.Prompts))], len(ircBot.Prompts), len(ircBot.ChannelData), 0}
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err = tmpl.Execute(response, td)
if err != nil {
http.Error(response, err.Error(), http.StatusInternalServerError)
return
}
}
func LeaveHandler(response http.ResponseWriter, request *http.Request) {
request.URL.Path = "/bye.html"
TemplateHandler(response, request)
}
func AdminHandler(response http.ResponseWriter, request *http.Request) {
vars := mux.Vars(request)
if vars["key"] != ircBot.ChannelData[vars["channel"]].AdminKey {
UnauthorizedHandler(response, request)
return
}
type TemplateData struct {
Channel string
Command string
ExtraStrings string
SinceTime time.Time
Leaving bool
}
channelData := ircBot.ChannelData[vars["channel"]]
var td = TemplateData{channelData.Name, channelData.Command, channelData.ExtraStrings, channelData.JoinTime, false}
if request.Method == "POST" {
request.ParseForm()
if strings.Join(request.PostForm["leave"],",") == "Leave twitch channel" {
td.Leaving = true
} else if strings.Join(request.PostForm["reallyleave"],",") == "Really leave twitch channel" {
delete(ircBot.ChannelData,vars["channel"])
ircBot.Database.Delete("channelData", vars["channel"])
ircBot.LeaveChannel(vars["channel"])
LeaveHandler(response, request)
return
}
sourceData := ircBot.ChannelData[vars["channel"]]
if strings.Join(request.PostForm["Command"],",") != "" {
sourceData.Command = strings.Join(request.PostForm["Command"],",")
td.Command = sourceData.Command
ircBot.ChannelData[vars["channel"]] = sourceData
}
if strings.Join(request.PostForm["ExtraStrings"],",") != sourceData.ExtraStrings {
sourceData.ExtraStrings = strings.Join(request.PostForm["ExtraStrings"],",")
td.ExtraStrings = sourceData.ExtraStrings
ircBot.ChannelData[vars["channel"]] = sourceData
}
ircBot.Database.Write("channelData", vars["channel"], sourceData);
}
tmpl := template.Must(template.ParseFiles("web/admin.html"))
tmpl.Execute(response, td)
}
func UnauthorizedHandler(response http.ResponseWriter, request *http.Request) {
response.Header().Add("X-Template-File", "html"+request.URL.Path)
response.WriteHeader(401)
tmpl := template.Must(template.ParseFiles("web/401.html"))
tmpl.Execute(response, nil)
}
func HandleHTTP(passedIrcBot *irc.KardBot) {
ircBot = passedIrcBot
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r := mux.NewRouter()
loggedRouter := handlers.LoggingHandler(os.Stdout, r)
r.NotFoundHandler = http.HandlerFunc(NotFoundHandler)
r.HandleFunc("/", RootHandler)
r.HandleFunc("/healthz", HealthHandler)
r.HandleFunc("/web/{.*}", TemplateHandler)
r.PathPrefix("/static/").Handler(http.FileServer(http.Dir("./web/")))
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r.HandleFunc("/cover.css", CSSHandler)
r.HandleFunc("/admin/{channel}/{key}", AdminHandler)
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http.Handle("/", r)
srv := &http.Server{
Handler: loggedRouter,
Addr: "0.0.0.0:5353",
WriteTimeout: 15 * time.Second,
ReadTimeout: 15 * time.Second,
}
fmt.Println("Listening on 0.0.0.0:5353")
srv.ListenAndServe()
}