Return empty list instead of null for new UI-auth sessions (#406)

fixes #399

Signed-off-by: Anant Prakash <anantprakashjsr@gmail.com>
This commit is contained in:
Anant Prakash 2018-03-15 17:21:08 +00:00 committed by Richard van der Hoff
parent 66af311b6a
commit 8a1f3195ca
2 changed files with 46 additions and 6 deletions

View file

@ -50,9 +50,35 @@ const (
sessionIDLength = 24
)
// sessionsDict keeps track of completed auth stages for each session.
type sessionsDict struct {
sessions map[string][]authtypes.LoginType
}
// GetCompletedStages returns the completed stages for a session.
func (d sessionsDict) GetCompletedStages(sessionID string) []authtypes.LoginType {
if completedStages, ok := d.sessions[sessionID]; ok {
return completedStages
}
// Ensure that a empty slice is returned and not nil. See #399.
return make([]authtypes.LoginType, 0)
}
// AAddCompletedStage records that a session has completed an auth stage.
func (d *sessionsDict) AddCompletedStage(sessionID string, stage authtypes.LoginType) {
d.sessions[sessionID] = append(d.GetCompletedStages(sessionID), stage)
}
func newSessionsDict() *sessionsDict {
return &sessionsDict{
sessions: make(map[string][]authtypes.LoginType),
}
}
var (
// TODO: Remove old sessions. Need to do so on a session-specific timeout.
sessions = make(map[string][]authtypes.LoginType) // Sessions and completed flow stages
// sessions stores the completed flow stages for all sessions. Referenced using their sessionID.
sessions = newSessionsDict()
validUsernameRegex = regexp.MustCompile(`^[0-9a-z_\-./]+$`)
)
@ -112,7 +138,7 @@ func newUserInteractiveResponse(
params map[string]interface{},
) userInteractiveResponse {
return userInteractiveResponse{
fs, sessions[sessionID], params, sessionID,
fs, sessions.GetCompletedStages(sessionID), params, sessionID,
}
}
@ -433,7 +459,7 @@ func handleRegistrationFlow(
}
// Add Recaptcha to the list of completed registration stages
sessions[sessionID] = append(sessions[sessionID], authtypes.LoginTypeRecaptcha)
sessions.AddCompletedStage(sessionID, authtypes.LoginTypeRecaptcha)
case authtypes.LoginTypeSharedSecret:
// Check shared secret against config
@ -446,7 +472,7 @@ func handleRegistrationFlow(
}
// Add SharedSecret to the list of completed registration stages
sessions[sessionID] = append(sessions[sessionID], authtypes.LoginTypeSharedSecret)
sessions.AddCompletedStage(sessionID, authtypes.LoginTypeSharedSecret)
case authtypes.LoginTypeApplicationService:
// Check Application Service register user request is valid.
@ -466,7 +492,7 @@ func handleRegistrationFlow(
case authtypes.LoginTypeDummy:
// there is nothing to do
// Add Dummy to the list of completed registration stages
sessions[sessionID] = append(sessions[sessionID], authtypes.LoginTypeDummy)
sessions.AddCompletedStage(sessionID, authtypes.LoginTypeDummy)
default:
return util.JSONResponse{
@ -478,7 +504,8 @@ func handleRegistrationFlow(
// Check if the user's registration flow has been completed successfully
// A response with current registration flow and remaining available methods
// will be returned if a flow has not been successfully completed yet
return checkAndCompleteFlow(sessions[sessionID], req, r, sessionID, cfg, accountDB, deviceDB)
return checkAndCompleteFlow(sessions.GetCompletedStages(sessionID),
req, r, sessionID, cfg, accountDB, deviceDB)
}
// checkAndCompleteFlow checks if a given registration flow is completed given

View file

@ -132,3 +132,16 @@ func TestFlowCheckingExtraneousIncorrectInput(t *testing.T) {
t.Error("Incorrect registration flow verification: ", testFlow, ", from allowed flows: ", allowedFlows, ". Should be false.")
}
}
// Completed flows stages should always be a valid slice header.
// TestEmptyCompletedFlows checks that sessionsDict returns a slice & not nil.
func TestEmptyCompletedFlows(t *testing.T) {
fakeEmptySessions := newSessionsDict()
fakeSessionID := "aRandomSessionIDWhichDoesNotExist"
ret := fakeEmptySessions.GetCompletedStages(fakeSessionID)
// check for []
if ret == nil || len(ret) != 0 {
t.Error("Empty Completed Flow Stages should be a empty slice: returned ", ret, ". Should be []")
}
}