mcchunkie/chats/sms.go

95 lines
2.0 KiB
Go

package chats
import (
"fmt"
"log"
"net/http"
"strings"
"golang.org/x/crypto/bcrypt"
"suah.dev/mcchunkie/plugins"
)
func smsCanSend(number string, numbers []string) bool {
for _, s := range numbers {
if number == s {
return true
}
}
return false
}
// SMSListen listens for our incoming sms
func SMSListen(store ChatStore, plugins *plugins.Plugins) {
var smsPort, _ = store.Get("sms_listen")
var smsAllowed, _ = store.Get("sms_users")
var smsUsers = strings.Split(smsAllowed, ",")
if smsPort != "" {
var htpass, _ = store.Get("sms_htpass")
log.Printf("SMS: listening on %q\n", smsPort)
http.HandleFunc("/_sms", func(w http.ResponseWriter, r *http.Request) {
var msg, from string
user, pass, ok := r.BasicAuth()
err := bcrypt.CompareHashAndPassword([]byte(htpass), []byte(pass))
if !(ok && err == nil && user == "sms") {
log.Printf("SMS: failed auth %q %q\n", user, pass)
w.Header().Set("WWW-Authenticate", `Basic realm="sms notify"`)
http.Error(w, "Unauthorized", http.StatusUnauthorized)
return
}
err = r.ParseForm()
if err != nil {
http.Error(w, "invalid request", http.StatusBadRequest)
return
}
log.Println(r.Method)
switch r.Method {
case http.MethodPost:
msg = r.Form.Get("Body")
from = r.Form.Get("From")
default:
http.Error(
w,
fmt.Sprintf("method %q not implemented", r.Method),
http.StatusMethodNotAllowed,
)
return
}
if smsCanSend(from, smsUsers) {
msg = strings.TrimSuffix(msg, "\n")
if msg == "" {
fmt.Fprintf(w, "empty message")
return
}
for _, p := range *plugins {
if p.Match(from, msg) {
log.Printf("%s: responding to '%s'", p.Name(), from)
p.SetStore(store)
resp := p.Process(from, msg)
fmt.Fprint(w, resp)
}
}
} else {
log.Printf("number not allowed (%q)", from)
http.Error(
w,
fmt.Sprintf("number not allowed (%q)", from),
http.StatusMethodNotAllowed,
)
return
}
})
log.Fatal(http.ListenAndServe(smsPort, nil))
}
}