Macrame/be/app/helper/api-helper.go
Jesse Malotaux b598a090bc Major Update, registration and authentication of devices works now.
This is the first iteration of the registration of devices and authentication for a couple of endpoints.
This needs to be refactored, the code is a bit of a mess. Also because of testing some endpoints are available for remotes that shouldn't be.
2025-04-04 11:27:19 +02:00

102 lines
2.1 KiB
Go

package helper
import (
"encoding/json"
"log"
"net"
"net/http"
"strings"
"be/app/structs"
. "be/app/structs"
)
func EndpointAccess(w http.ResponseWriter, r *http.Request) (bool, string) {
ip, _, err := net.SplitHostPort(r.RemoteAddr)
if err != nil {
log.Fatal(err)
}
if (isLocal(ip) && isEndpointAllowed("Local", r.URL.Path)) ||
(isLanRemote(ip) && isEndpointAllowed("Remote", r.URL.Path)) {
log.Println(r.URL.Path, "endpoint access: accessible")
return true, ""
} else if isLanRemote(ip) && isEndpointAllowed("Auth", r.URL.Path) {
log.Println(r.URL.Path, "endpoint access: authorized")
data := decryptAuth(r)
return data != "", data
}
log.Println(r.URL.Path, "endpoint access: not authorized or accessible")
return false, ""
}
func isLocal(ip string) bool {
return ip == "127.0.0.1" || ip == "::1"
}
func isLanRemote(ip string) bool {
return strings.HasPrefix(ip, "192.168.")
}
func isEndpointAllowed(source string, endpoint string) bool {
var endpoints, err = getAllowedEndpoints(source)
if err != "" {
log.Println(err)
}
if (endpoints != nil) && (len(endpoints) > 0) {
for _, e := range endpoints {
if e == endpoint {
return true
}
}
}
return false
}
func getAllowedEndpoints(source string) (endpoints []string, err string) {
if source == "Local" {
return Endpoints.Local, ""
}
if source == "Remote" {
return Endpoints.Remote, ""
}
if source == "Auth" {
return Endpoints.Auth, ""
}
return []string{}, "No allowed endpoints"
}
func decryptAuth(r *http.Request) string {
var req structs.Authcall
err := json.NewDecoder(r.Body).Decode(&req)
if err != nil || req.Uuid == "" || req.Data == "" {
return ""
}
deviceKey, errKey := GetKeyByUuid(req.Uuid)
decryptData, errDec := DecryptAES(deviceKey, req.Data)
if errKey != nil && errDec != nil || decryptData == "" {
return ""
}
return decryptData
}
func ParseRequest(req interface{}, data string, r *http.Request) (d interface{}, err error) {
if data != "" {
dataBytes := []byte(data)
return req, json.Unmarshal(dataBytes, &req)
} else {
return req, json.NewDecoder(r.Body).Decode(&req)
}
}