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package main
import (
"embed"
"flag"
"fmt"
"log"
"log/slog"
"net/http"
"os"
"time"
"github.com/a-h/templ"
"github.com/gorilla/securecookie"
"github.com/gorilla/sessions"
"github.com/mymmrac/telego"
"github.com/robfig/cron/v3"
"within.website/x/htmx"
"within.website/x/internal"
)
//go:generate tailwindcss --input styles.css --output static/css/styles.css
//go:generate go tool templ generate
var (
botToken = flag.String("bot-token", "", "Telegram bot token")
botUsername = flag.String("bot-username", "", "Telegram bot username")
cookieSecret = flag.String("cookie-secret", "", "Secret key for cookie store")
dbLoc = flag.String("database-loc", "./var/hdrwtch.db", "Database location")
domain = flag.String("domain", "shiroko-wsl.shark-harmonic.ts.net", "Domain to use for user agent")
port = flag.String("port", "8080", "Port to listen on")
region = flag.String("fly-region", "yow-dev", "Region of this instance")
//dbURL = flag.String("database-url", "", "Database URL")
//go:embed static
staticFS embed.FS
)
func main() {
internal.HandleStartup()
if *cookieSecret == "" {
fmt.Println("cookie-secret is required")
fmt.Printf("%x\n", securecookie.GenerateRandomKey(32))
os.Exit(1)
}
bot, err := telego.NewBot(*botToken)
if err != nil {
log.Fatal(err)
}
dao, err := New(*dbLoc)
if err != nil {
log.Fatal(err)
}
s := &Server{
store: sessions.NewCookieStore([]byte(*cookieSecret)),
dao: dao,
tg: bot,
}
if err := s.importDocs(); err != nil {
log.Fatal(err)
}
mux := http.NewServeMux()
htmx.Mount(mux)
mux.Handle("/static/", http.FileServer(http.FS(staticFS)))
mux.HandleFunc("/{$}", s.index)
mux.HandleFunc("/login", s.loginHandler)
mux.HandleFunc("/login/callback", s.loginCallbackHandler)
mux.HandleFunc("/logout", s.logoutHandler)
mux.HandleFunc("/docs/{slug...}", s.docsHandler)
// authed routes
mux.Handle("/user", s.loggedIn(s.userHandler))
// probe management
mux.Handle("GET /probe", s.loggedIn(s.probeList))
mux.Handle("POST /probe", s.loggedIn(s.probeCreate))
mux.Handle("GET /probe/{id}", s.loggedIn(s.probeGet))
mux.Handle("GET /probe/{id}/edit", s.loggedIn(s.probeEdit))
mux.Handle("PUT /probe/{id}", s.loggedIn(s.probeUpdate))
mux.Handle("DELETE /probe/{id}", s.loggedIn(s.probeDelete))
mux.Handle("GET /probe/{id}/run/{result_id}", s.loggedIn(s.probeRunGet))
mux.Handle("/", internal.UnchangingCache(
templ.Handler(
base("Not Found", nil, anonNavBar(true), notFoundPage()),
templ.WithStatus(http.StatusNotFound),
),
))
// test routes
mux.HandleFunc("GET /test/curr", func(w http.ResponseWriter, r *http.Request) {
val := time.Now().Format(http.TimeFormat)
w.Header().Set("Last-Modified", val)
fmt.Fprintln(w, val)
})
mux.HandleFunc("GET /test/constant", func(w http.ResponseWriter, r *http.Request) {
val := "Mon, 02 Jan 2006 15:04:05 GMT"
w.Header().Set("Last-Modified", val)
fmt.Fprintln(w, val)
})
c := cron.New()
if *region == "yow-dev" {
c.AddFunc("@every 1m", s.cron)
slog.Info("running in dev mode", "cron-frequency", "1m")
} else {
c.AddFunc("@every 15m", s.cron)
}
go c.Start()
slog.Info("listening", "on", "http://localhost:"+*port)
log.Fatal(http.ListenAndServe(":"+*port, mux))
}
type Server struct {
store *sessions.CookieStore
dao *DAO
tg *telego.Bot
}
func (s *Server) index(w http.ResponseWriter, r *http.Request) {
var navbar templ.Component
tu, ok := s.getTelegramUserData(r)
if ok {
navbar = authedNavBar(tu)
} else {
navbar = anonNavBar(true)
}
templ.Handler(
base("hdrwtch", homepageHead(), navbar, homePage()),
).ServeHTTP(w, r)
}
func (s *Server) logoutHandler(w http.ResponseWriter, r *http.Request) {
session, _ := s.store.Get(r, "telegram-session")
session.Options.MaxAge = -1
session.Save(r, w)
http.Redirect(w, r, "/user", http.StatusFound)
}
func (s *Server) loginHandler(w http.ResponseWriter, r *http.Request) {
if _, ok := s.getTelegramUserData(r); ok {
http.Redirect(w, r, "/user", http.StatusFound)
return
}
u := r.URL.JoinPath("/callback")
templ.Handler(base("Login", nil, anonNavBar(false), loginPage(u.String()))).ServeHTTP(w, r)
}
func (s *Server) loginCallbackHandler(w http.ResponseWriter, r *http.Request) {
authData := make(map[string]string)
for key, values := range r.URL.Query() {
authData[key] = values[0]
}
user, err := checkTelegramAuthorization(*botToken, authData)
if err != nil {
http.Error(w, err.Error(), http.StatusUnauthorized)
return
}
err = s.saveTelegramUserData(w, r, user)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
if err := s.dao.UpsertUser(r.Context(), user); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
http.Redirect(w, r, "/user", http.StatusFound)
}
func (s *Server) userHandler(w http.ResponseWriter, r *http.Request) {
userData, ok := s.getTelegramUserData(r)
if !ok {
http.Error(w, "unauthorized", http.StatusUnauthorized)
return
}
probeCount, err := s.dao.CountProbes(r.Context(), userData.ID)
if err != nil {
slog.Error("failed to count probes", "err", err)
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
templ.Handler(
base(
"User Info",
nil,
authedNavBar(userData),
userPage(userData, probeCount),
),
).ServeHTTP(w, r)
}
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