Cleanup various sad things.

- Export ModuleAttrMeta so the modules can access it.
- Add a couple new events for later use.
- Fix a few compile errors.
- Prefix err constants with Err.

authboss.go

@@ -42,6 +42,7 @@ func Init(config *Config) error {
 	return nil
 }
 
+// CurrentUser retrieves the current user from the session and the database.
 func CurrentUser(w http.ResponseWriter, r *http.Request) (interface{}, error) {
 	sessions := cfg.SessionStoreMaker(w, r)
 	key, ok := sessions.Get(SessionKey)
@@ -49,9 +50,26 @@ func CurrentUser(w http.ResponseWriter, r *http.Request) (interface{}, error) {
 		return nil, nil
 	}
 
-	return cfg.Storer.Get(key, moduleAttrMeta)
+	ctx, err := ContextFromRequest(r)
+	if err != nil {
+		return nil, err
+	}
+
+	err = ctx.LoadUser(key, cfg.Storer)
+	if err != nil {
+		return nil, err
+	}
+
+	err = cfg.Callbacks.FireBefore(EventGet, ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	return cfg.Storer.Get(key, ModuleAttrMeta)
 }
 
+// CurrentUserP retrieves the current user but panics if it's not available for
+// any reason.
 func CurrentUserP(w http.ResponseWriter, r *http.Request) interface{} {
 	i, err := CurrentUser(w, r)
 	if err != nil {

callbacks.go

@@ -7,8 +7,10 @@ type Event int
 const (
 	EventRegister Event = iota
 	EventAuth
+	EventAuthFail
 	EventRecoverStart
 	EventRecoverEnd
+	EventGet
 )
 
 // Before callbacks can interrupt the flow by returning an error. This is used to stop
@@ -32,14 +34,14 @@ func NewCallbacks() *Callbacks {
 	}
 }
 
-// Before event, call callback.
+// Before event, call f.
 func (c *Callbacks) Before(e Event, f Before) {
 	callbacks := c.before[e]
 	callbacks = append(callbacks, f)
 	c.before[e] = callbacks
 }
 
-// After event, call callback.
+// After event, call f.
 func (c *Callbacks) After(e Event, f After) {
 	callbacks := c.after[e]
 	callbacks = append(callbacks, f)

context.go

@@ -87,7 +87,7 @@ func (c *Context) LoadUser(key string, storer Storer) error {
 		return nil
 	}
 
-	intf, err := storer.Get(key, moduleAttrMeta)
+	intf, err := storer.Get(key, ModuleAttrMeta)
 	if err != nil {
 		return err
 	}

module.go

@@ -2,7 +2,7 @@ package authboss
 
 var modules = make(map[string]Modularizer)
 
-var moduleAttrMeta = make(AttributeMeta)
+var ModuleAttrMeta = make(AttributeMeta)
 
 // Modularizer should be implemented by all the authboss modules.
 type Modularizer interface {
@@ -17,7 +17,7 @@ func RegisterModule(name string, m Modularizer) {
 	modules[name] = m
 
 	for k, v := range m.Storage() {
-		moduleAttrMeta[k] = v
+		ModuleAttrMeta[k] = v
 	}
 }
 

remember/remember.go

@@ -144,7 +144,7 @@ func (r *Remember) Auth(
 	sum := md5.Sum(token)
 
 	key, err := r.storer.UseToken(string(givenKey), base64.StdEncoding.EncodeToString(sum[:]))
-	if err == authboss.TokenNotFound {
+	if err == authboss.ErrTokenNotFound {
 		return "", nil
 	} else if err != nil {
 		return "", err

remember/remember_test.go

@@ -55,7 +55,7 @@ func (t *testTokenStorer) UseToken(givenKey, token string) (key string, err erro
 		t.token = ""
 		return ret, nil
 	}
-	return "", authboss.TokenNotFound
+	return "", authboss.ErrTokenNotFound
 }
 
 func TestInitialize(t *testing.T) {

storer.go

@@ -9,11 +9,12 @@ import (
 	"unicode"
 )
 
-// UserNotFound should be returned from Get when the record is not found.
-var UserNotFound = errors.New("User not found")
-
-// TokenNotFound should be returned from UseToken when the record is not found.
-var TokenNotFound = errors.New("Token not found")
+var (
+	// UserNotFound should be returned from Get when the record is not found.
+	ErrUserNotFound = errors.New("User not found")
+	// TokenNotFound should be returned from UseToken when the record is not found.
+	ErrTokenNotFound = errors.New("Token not found")
+)
 
 // StorageOptions is a map depicting the things a module must be able to store.
 type StorageOptions map[string]DataType

validate/rules.go

@@ -31,7 +31,7 @@ func (r Rules) Errors(toValidate string) authboss.ErrorList {
 	ln := len(toValidate)
 	if ln == 0 {
 		errs = append(errs, authboss.FieldError{r.Field, errors.New("Cannot be blank")})
-		return err
+		return errs
 	}
 
 	if r.MustMatch != nil {