vppn/hub/handler.go
2025-03-10 16:11:40 +01:00

95 lines
2.3 KiB
Go

package hub
import (
"log"
"net/http"
"vppn/hub/api"
"git.crumpington.com/lib/go/webutil"
)
type handlerFunc func(s *api.Session, w http.ResponseWriter, r *http.Request) error
func (app *App) handlePub(pattern string, fn handlerFunc) {
wrapped := func(w http.ResponseWriter, r *http.Request) {
sessionID := app.getCookie(r, SESSION_ID_COOKIE_NAME)
s, err := app.api.Session_Get(sessionID)
if err != nil {
log.Printf("Failed to get session: %v", err)
http.Error(w, "Internal error", http.StatusInternalServerError)
return
}
if s.SessionID != sessionID {
app.setCookie(w, SESSION_ID_COOKIE_NAME, s.SessionID)
}
if r.Method == http.MethodPost {
r.ParseMultipartForm(64 * 1024)
if r.FormValue("CSRF") != s.CSRF {
log.Printf("%s != %s", r.FormValue("CSRF"), s.CSRF)
http.Error(w, "CSRF mismatch", http.StatusBadRequest)
return
}
} else {
r.ParseForm()
}
if err := fn(s, w, r); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
}
app.mux.HandleFunc(pattern,
webutil.WithLogging(
wrapped))
}
func (app *App) handleNotSignedIn(pattern string, fn handlerFunc) {
app.handlePub(pattern, func(s *api.Session, w http.ResponseWriter, r *http.Request) error {
if s.SignedIn {
http.Redirect(w, r, "/", http.StatusSeeOther)
return nil
}
return fn(s, w, r)
})
}
func (app *App) handleSignedIn(pattern string, fn handlerFunc) {
app.handlePub(pattern, func(s *api.Session, w http.ResponseWriter, r *http.Request) error {
if !s.SignedIn {
http.Redirect(w, r, "/", http.StatusSeeOther)
return nil
}
return fn(s, w, r)
})
}
type peerHandlerFunc func(p *api.Peer, w http.ResponseWriter, r *http.Request) error
func (app *App) handlePeer(pattern string, fn peerHandlerFunc) {
wrapped := func(w http.ResponseWriter, r *http.Request) {
_, apiKey, ok := r.BasicAuth()
if !ok {
http.Error(w, "Not authorized", http.StatusUnauthorized)
return
}
peer, err := app.api.Peer_GetByAPIKey(apiKey)
if err != nil {
http.Error(w, "Not authorized", http.StatusUnauthorized)
return
}
r.ParseForm()
if err := fn(peer, w, r); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
}
app.mux.HandleFunc(pattern,
webutil.WithLogging(
wrapped))
}