stash/internal/api/session.go

125 lines
3.0 KiB
Go

package api
import (
"bytes"
"errors"
"fmt"
"html/template"
"io/fs"
"net/http"
"strings"
"github.com/stashapp/stash/internal/manager"
"github.com/stashapp/stash/internal/manager/config"
"github.com/stashapp/stash/pkg/logger"
"github.com/stashapp/stash/pkg/session"
"github.com/stashapp/stash/pkg/utils"
"github.com/stashapp/stash/ui"
)
const returnURLParam = "returnURL"
func getLoginPage() []byte {
data, err := fs.ReadFile(ui.LoginUIBox, "login.html")
if err != nil {
panic(err)
}
return data
}
type loginTemplateData struct {
URL string
Error string
}
func serveLoginPage(w http.ResponseWriter, r *http.Request, returnURL string, loginError string) {
loginPage := string(getLoginPage())
prefix := getProxyPrefix(r)
loginPage = strings.ReplaceAll(loginPage, "/%BASE_URL%", prefix)
templ, err := template.New("Login").Parse(loginPage)
if err != nil {
http.Error(w, fmt.Sprintf("error: %s", err), http.StatusInternalServerError)
return
}
buffer := bytes.Buffer{}
err = templ.Execute(&buffer, loginTemplateData{URL: returnURL, Error: loginError})
if err != nil {
http.Error(w, fmt.Sprintf("error: %s", err), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "text/html")
// we shouldn't need to set plugin exceptions here
setPageSecurityHeaders(w, r, nil)
utils.ServeStaticContent(w, r, buffer.Bytes())
}
func handleLogin() http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
returnURL := r.URL.Query().Get(returnURLParam)
if !config.GetInstance().HasCredentials() {
if returnURL != "" {
http.Redirect(w, r, returnURL, http.StatusFound)
} else {
prefix := getProxyPrefix(r)
http.Redirect(w, r, prefix+"/", http.StatusFound)
}
return
}
serveLoginPage(w, r, returnURL, "")
}
}
func handleLoginPost() http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
url := r.FormValue(returnURLParam)
if url == "" {
url = getProxyPrefix(r) + "/"
}
err := manager.GetInstance().SessionStore.Login(w, r)
if err != nil {
// always log the error
logger.Errorf("Error logging in: %v", err)
}
var invalidCredentialsError *session.InvalidCredentialsError
if errors.As(err, &invalidCredentialsError) {
// serve login page with an error
serveLoginPage(w, r, url, "Username or password is invalid")
return
}
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
http.Redirect(w, r, url, http.StatusFound)
}
}
func handleLogout() http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
if err := manager.GetInstance().SessionStore.Logout(w, r); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
// redirect to the login page if credentials are required
prefix := getProxyPrefix(r)
if config.GetInstance().HasCredentials() {
http.Redirect(w, r, prefix+loginEndpoint, http.StatusFound)
} else {
http.Redirect(w, r, prefix+"/", http.StatusFound)
}
}
}