mirror of
https://github.com/osmarks/mycorrhiza.git
synced 2024-10-30 11:46:16 +00:00
76 lines
2.1 KiB
Go
76 lines
2.1 KiB
Go
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package user
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import (
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"log"
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"net/http"
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"time"
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"github.com/bouncepaw/mycorrhiza/util"
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)
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// CanProceed returns `true` if the user in `rq` has enough rights to access `route`.
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func CanProceed(rq *http.Request, route string) bool {
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return FromRequest(rq).CanProceed(route)
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}
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// FromRequest returns user from `rq`. If there is no user, an anon user is returned instead.
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func FromRequest(rq *http.Request) *User {
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cookie, err := rq.Cookie("mycorrhiza_token")
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if err != nil {
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return emptyUser()
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}
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return userByToken(cookie.Value)
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}
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// LogoutFromRequest logs the user in `rq` out and rewrites the cookie in `w`.
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func LogoutFromRequest(w http.ResponseWriter, rq *http.Request) {
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cookieFromUser, err := rq.Cookie("mycorrhiza_token")
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if err == nil {
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http.SetCookie(w, cookie("token", "", time.Unix(0, 0)))
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terminateSession(cookieFromUser.Value)
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}
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}
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// LoginDataHTTP logs such user in and returns string representation of an error if there is any.
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func LoginDataHTTP(w http.ResponseWriter, rq *http.Request, username, password string) string {
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w.Header().Set("Content-Type", "text/html;charset=utf-8")
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if !HasUsername(username) {
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w.WriteHeader(http.StatusBadRequest)
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log.Println("Unknown username", username, "was entered")
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return "unknown username"
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}
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if !CredentialsOK(username, password) {
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w.WriteHeader(http.StatusBadRequest)
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log.Println("A wrong password was entered for username", username)
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return "wrong password"
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}
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token, err := AddSession(username)
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if err != nil {
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log.Println(err)
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w.WriteHeader(http.StatusBadRequest)
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return err.Error()
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}
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http.SetCookie(w, cookie("token", token, time.Now().Add(365*24*time.Hour)))
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return ""
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}
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// AddSession saves a session for `username` and returns a token to use.
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func AddSession(username string) (string, error) {
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token, err := util.RandomString(16)
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if err == nil {
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commenceSession(username, token)
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log.Println("New token for", username, "is", token)
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}
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return token, err
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}
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// A handy cookie constructor
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func cookie(name_suffix, val string, t time.Time) *http.Cookie {
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return &http.Cookie{
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Name: "mycorrhiza_" + name_suffix,
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Value: val,
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Expires: t,
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Path: "/",
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}
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}
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