func (h *Handler) AuthorizeHandler(w http.ResponseWriter, r *http.Request) {
resp := h.server.NewResponse()
defer resp.Close()
if ar := h.server.HandleAuthorizeRequest(resp, r); ar != nil {
// For now, a provider must be given.
// TODO there should be a fallback provider which is a redirect to the login endpoint. This should be configurable by env var.
// Let's see if this is a valid provider. If not, return an error.
provider, err := h.Providers.Find(r.URL.Query().Get("provider"))
if err != nil {
http.Error(w, fmt.Sprintf(`Provider "%s" not known.`, err), http.StatusBadRequest)
return
}
// This could be made configurable with `connection.GetCodeKeyName()`
code := r.URL.Query().Get("access_code")
if code == "" {
// If no code was given we have to initiate the provider's authorization workflow
url := provider.GetAuthCodeURL(ar)
http.Redirect(w, r, url, http.StatusFound)
return
}
// Create a session by exchanging the code for the auth code
connection, err := provider.Exchange(code)
if err != nil {
http.Error(w, fmt.Sprintf("Could not exchange access code: %s", err), http.StatusUnauthorized)
return
}
subject := connection.GetRemoteSubject()
user, err := h.Connections.FindByRemoteSubject(provider.GetID(), subject)
if err == account.ErrNotFound {
// The subject is not linked to any account.
http.Error(w, "Provided token is not linked to any existing account.", http.StatusUnauthorized)
return
} else if err != nil {
// Something else went wrong
http.Error(w, fmt.Sprintf("Could assert subject claim: %s", err), http.StatusInternalServerError)
return
}
ar.UserData = jwt.NewClaimsCarrier(uuid.New(), user.GetLocalSubject(), h.Issuer, h.Audience, time.Now(), time.Now())
ar.Authorized = true
h.server.FinishAuthorizeRequest(resp, r, ar)
}
if resp.IsError {
resp.StatusCode = http.StatusUnauthorized
}
osin.OutputJSON(resp, w, r)
}
func (h *Handler) AuthorizeHandler(w http.ResponseWriter, r *http.Request) {
r.ParseForm()
resp := h.server.NewResponse()
defer resp.Close()
code := r.Form.Get("code")
state := r.Form.Get("state")
if code != "" {
stateData, err := h.States.GetStateData(state)
if err != nil {
// Something else went wrong
http.Error(w, fmt.Sprintf("Could not fetch state: %s", err), http.StatusBadRequest)
return
}
if stateData.IsExpired() {
http.Error(w, fmt.Sprintf("This session expired %v.", err), http.StatusBadRequest)
}
r.Form = stateData.ToURLValues()
}
if ar := h.server.HandleAuthorizeRequest(resp, r); ar != nil {
// For now, a provider must be given.
// TODO there should be a fallback provider which is a redirect to the login endpoint. This should be configurable by env var.
// Let's see if this is a valid provider. If not, return an error.
providerName := r.Form.Get("provider")
if r.Form.Get("provider") == "" && h.SignInLocation != "" {
providerName = "login"
}
provider, err := h.Providers.Find(providerName)
if err != nil {
http.Error(w, fmt.Sprintf(`Unknown provider "%s".`, providerName), http.StatusBadRequest)
return
}
if code == "" {
stateData := new(storage.StateData)
if err := stateData.FromAuthorizeRequest(ar, provider.GetID()); err != nil {
// Something else went wrong
http.Error(w, fmt.Sprintf("Could not hydrate state data: %s", err), http.StatusInternalServerError)
return
}
stateData.ExpireInOneHour()
if err := h.States.SaveStateData(stateData); err != nil {
// Something else went wrong
http.Error(w, fmt.Sprintf("Could not persist state data: %s", err), http.StatusInternalServerError)
return
}
// If no code was given we have to initiate the provider's authorization workflow
url := provider.GetAuthenticationURL(stateData.ID)
http.Redirect(w, r, url, http.StatusFound)
return
}
// Create a session by exchanging the code for the auth code
session, err := provider.FetchSession(code)
if err != nil {
http.Error(w, fmt.Sprintf("Could not exchange access code: %s", err), http.StatusUnauthorized)
return
}
var conn connection.Connection
var acc account.Account
if session.GetForcedLocalSubject() != "" {
acc, err = h.Accounts.Get(session.GetForcedLocalSubject())
} else {
conn, err = h.Connections.FindByRemoteSubject(provider.GetID(), session.GetRemoteSubject())
}
if err == pkg.ErrNotFound {
// The subject is not linked to any account.
if h.SignUpLocation == "" {
http.Error(w, "No sign up location is set. Please contact your admin.", http.StatusInternalServerError)
return
}
redirect, err := url.Parse(h.SignUpLocation)
if err != nil {
http.Error(w, fmt.Sprintf("Could not parse redirect URL: %s", err), http.StatusInternalServerError)
return
}
claims := map[string]interface{}{
"iss": h.Issuer,
"aud": redirect.String(),
"exp": time.Now().Add(time.Hour),
"iat": time.Now(),
"state": ar.State,
"connector_id": provider.GetID(),
"connector_response": session.GetExtra(),
"connector_subject": session.GetRemoteSubject(),
"redirect_uri": pkg.JoinURL(h.HostURL, "oauth2/authorize"),
}
authToken, err := h.JWT.SignToken(claims, map[string]interface{}{})
if err != nil {
http.Error(w, fmt.Sprintf("Could not generate token: %s", err), http.StatusInternalServerError)
return
}
query := redirect.Query()
query.Add("auth_token", authToken)
redirect.RawQuery = query.Encode()
log.WithFields(log.Fields{
"provider": provider.GetID(),
"subject": session.GetRemoteSubject(),
"redirect": h.SignUpLocation,
}).Warnf(`Remote subject is not linked to any local subject. Redirecting to sign up page.`)
http.Redirect(w, r, redirect.String(), http.StatusFound)
return
} else if err != nil {
// Something else went wrong
http.Error(w, fmt.Sprintf("Could not assert subject claim: %s", err), http.StatusInternalServerError)
return
}
var localSubject string
if conn != nil {
localSubject = conn.GetLocalSubject()
} else if acc != nil {
localSubject = acc.GetID()
}
ar.UserData = jwt.NewClaimsCarrier(uuid.New(), h.Issuer, localSubject, ar.Client.GetId(), time.Now().Add(time.Duration(ar.Expiration)*time.Second), time.Now(), time.Now())
ar.Authorized = true
h.server.FinishAuthorizeRequest(resp, r, ar)
}
if resp.IsError {
resp.StatusCode = http.StatusUnauthorized
}
osin.OutputJSON(resp, w, r)
}