diff options
Diffstat (limited to 'main.go')
| -rw-r--r-- | main.go | 119 |
1 files changed, 77 insertions, 42 deletions
@@ -1,28 +1,28 @@ package main import ( - "os" - "strings" - "flag" - "log" - "net/http" - "io/ioutil" - "encoding/json" - "encoding/base64" "crypto/rand" "crypto/tls" + "encoding/base64" + "encoding/json" + "flag" "html/template" + "io/ioutil" + "log" + "net/http" + "os" + "strings" - "github.com/gorilla/sessions" "github.com/go-ldap/ldap/v3" + "github.com/gorilla/sessions" ) type ConfigFile struct { HttpBindAddr string `json:"http_bind_addr"` SessionKey string `json:"session_key"` LdapServerAddr string `json:"ldap_server_addr"` - LdapTLS bool `json:"ldap_tls"` - UserFormat string `json:"user_format"` + LdapTLS bool `json:"ldap_tls"` + UserFormat string `json:"user_format"` } var configFlag = flag.String("config", "./config.json", "Configuration file path") @@ -30,12 +30,13 @@ var configFlag = flag.String("config", "./config.json", "Configuration file path var config *ConfigFile const SESSION_NAME = "guichet_session" -var store *sessions.CookieStore = nil -func readConfig() ConfigFile{ +var store sessions.Store = nil + +func readConfig() ConfigFile { key_bytes := make([]byte, 32) n, err := rand.Read(key_bytes) - if err!= nil || n != 32 { + if err != nil || n != 32 { log.Fatal(err) } @@ -43,8 +44,8 @@ func readConfig() ConfigFile{ HttpBindAddr: ":9991", SessionKey: base64.StdEncoding.EncodeToString(key_bytes), LdapServerAddr: "ldap://127.0.0.1:389", - LdapTLS: false, - UserFormat: "cn=%s,ou=users,dc=example,dc=com", + LdapTLS: false, + UserFormat: "cn=%s,ou=users,dc=example,dc=com", } _, err = os.Stat(*configFlag) @@ -87,9 +88,10 @@ func main() { config_file := readConfig() config = &config_file - store = sessions.NewCookieStore([]byte(config.SessionKey)) + store = sessions.NewFilesystemStore("", []byte(config.SessionKey)) http.HandleFunc("/", handleHome) + http.HandleFunc("/logout", handleLogout) staticfiles := http.FileServer(http.Dir("static")) http.Handle("/static/", http.StripPrefix("/static/", staticfiles)) @@ -102,9 +104,9 @@ func main() { type LoginInfo struct { Username string - DN string + DN string Password string - } +} func logRequest(handler http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { @@ -115,17 +117,23 @@ func logRequest(handler http.Handler) http.Handler { func checkLogin(w http.ResponseWriter, r *http.Request) *LoginInfo { session, err := store.Get(r, SESSION_NAME) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return nil - } + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + return nil + } - login_info, has_login_info := session.Values["login_info"] - if !has_login_info { + username, ok := session.Values["login_username"] + password, ok2 := session.Values["login_password"] + user_dn, ok3 := session.Values["login_dn"] + if !(ok && ok2 && ok3) { return handleLogin(w, r) } - return login_info.(*LoginInfo) + return &LoginInfo{ + DN: user_dn.(string), + Username: username.(string), + Password: password.(string), + } } func ldapOpen(w http.ResponseWriter) *ldap.Conn { @@ -149,18 +157,15 @@ func ldapOpen(w http.ResponseWriter) *ldap.Conn { // Templates ---- type LoginFormData struct { - Username string + Username string ErrorMessage string } -var ( - templateLogin = template.Must(template.ParseFiles("templates/layout.html", "templates/login.html")) - templateHome = template.Must(template.ParseFiles("templates/layout.html", "templates/home.html")) -) - // Page handlers ---- func handleHome(w http.ResponseWriter, r *http.Request) { + templateHome := template.Must(template.ParseFiles("templates/layout.html", "templates/home.html")) + login := checkLogin(w, r) if login == nil { return @@ -169,7 +174,29 @@ func handleHome(w http.ResponseWriter, r *http.Request) { templateHome.Execute(w, login) } +func handleLogout(w http.ResponseWriter, r *http.Request) { + session, err := store.Get(r, SESSION_NAME) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + return + } + + delete(session.Values, "login_username") + delete(session.Values, "login_password") + delete(session.Values, "login_dn") + + err = session.Save(r, w) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + return + } + + http.Redirect(w, r, "/", http.StatusFound) +} + func handleLogin(w http.ResponseWriter, r *http.Request) *LoginInfo { + templateLogin := template.Must(template.ParseFiles("templates/layout.html", "templates/login.html")) + if r.Method == "GET" { templateLogin.Execute(w, LoginFormData{}) return nil @@ -177,23 +204,18 @@ func handleLogin(w http.ResponseWriter, r *http.Request) *LoginInfo { r.ParseForm() username := strings.Join(r.Form["username"], "") + password := strings.Join(r.Form["password"], "") user_dn := strings.ReplaceAll(config.UserFormat, "%s", username) - login_info := &LoginInfo{ - DN: user_dn, - Username: username, - Password: strings.Join(r.Form["password"], ""), - } - l := ldapOpen(w) if l == nil { return nil } - err := l.Bind(user_dn, login_info.Password) + err := l.Bind(user_dn, password) if err != nil { templateLogin.Execute(w, LoginFormData{ - Username: username, + Username: username, ErrorMessage: err.Error(), }) return nil @@ -206,8 +228,21 @@ func handleLogin(w http.ResponseWriter, r *http.Request) *LoginInfo { return nil } - session.Values["login_info"] = login_info - return login_info + session.Values["login_username"] = username + session.Values["login_password"] = password + session.Values["login_dn"] = user_dn + + err = session.Save(r, w) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + return nil + } + + return &LoginInfo{ + DN: user_dn, + Username: username, + Password: password, + } } else { http.Error(w, "Unsupported method", http.StatusBadRequest) return nil |