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package backend
import (
"fmt"
"log"
"net/http"
"os"
"0xacab.org/leap/bitmask-vpn/pkg/bitmask"
)
func Adapt(h http.Handler, adapters ...Adapter) http.Handler {
for _, adapter := range adapters {
h = adapter(h)
}
return h
}
type Adapter func(http.Handler) http.Handler
func CheckAuth(token string) Adapter {
return func(h http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
t := r.Header.Get("X-Auth-Token")
if t == token {
h.ServeHTTP(w, r)
} else {
w.WriteHeader(http.StatusUnauthorized)
w.Write([]byte("401 - Unauthorized"))
}
})
}
}
func webOn(w http.ResponseWriter, r *http.Request) {
log.Println("Web UI: on")
SwitchOn()
}
func webOff(w http.ResponseWriter, r *http.Request) {
log.Println("Web UI: off")
SwitchOff()
}
func webStatus(w http.ResponseWriter, r *http.Request) {
log.Println("Web UI: status")
fmt.Fprintf(w, ctx.Status.String())
}
func webQuit(w http.ResponseWriter, r *http.Request) {
log.Println("Web UI: quit")
Quit()
os.Exit(0)
}
func enableWebAPI() {
bitmask.GenerateAuthToken()
auth := CheckAuth(bitmask.ReadAuthToken())
http.Handle("/vpn/start", Adapt(http.HandlerFunc(webOn), auth))
http.Handle("/vpn/stop", Adapt(http.HandlerFunc(webOff), auth))
http.Handle("/vpn/status", Adapt(http.HandlerFunc(webStatus), auth))
http.Handle("/vpn/quit", Adapt(http.HandlerFunc(webQuit), auth))
http.ListenAndServe(":8080", nil)
}
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