Initial commit

service/session/flash.go

@@ -0,0 +1,43 @@
+package session
+
+const (
+	// FlashError defines an "error" flash message
+	FlashError FlashType = "error"
+	// FlashWarn defines an "warning" flash message
+	FlashWarn FlashType = "warn"
+	// FlashSuccess defines an "success" flash message
+	FlashSuccess FlashType = "success"
+	// FlashInfo defines an "info" flash message
+	FlashInfo FlashType = "info"
+)
+
+// FlashType defines the type of a flash message
+type FlashType string
+
+// Flash is a ephemeral message that lives in a session
+// until it's read
+type Flash interface {
+	Type() FlashType
+	Message() string
+}
+
+// BaseFlash is a base implementation of a flash message
+type BaseFlash struct {
+	flashType FlashType
+	message   string
+}
+
+// Type returns the type of the flash
+func (f *BaseFlash) Type() FlashType {
+	return f.flashType
+}
+
+// Message returns the message of the flash
+func (f *BaseFlash) Message() string {
+	return f.message
+}
+
+// NewBaseFlash returns a new BaseFlash
+func NewBaseFlash(flashType FlashType, message string) *BaseFlash {
+	return &BaseFlash{flashType, message}
+}

service/session/service.go

@@ -0,0 +1,38 @@
+package session
+
+import (
+	"net/http"
+
+	"forge.cadoles.com/wpetit/goweb/service"
+	"github.com/pkg/errors"
+)
+
+// ServiceName defines the Session service name
+const ServiceName service.Name = "session"
+
+// Service defines the API of a "http session" service
+type Service interface {
+	Get(http.ResponseWriter, *http.Request) (Session, error)
+}
+
+// From retrieves the session service in the given container
+func From(container *service.Container) (Service, error) {
+	service, err := container.Service(ServiceName)
+	if err != nil {
+		return nil, errors.Wrapf(err, "error while retrieving '%s' service", ServiceName)
+	}
+	sessionService, ok := service.(Service)
+	if !ok {
+		return nil, errors.Errorf("retrieved service is not a valid '%s' service", ServiceName)
+	}
+	return sessionService, nil
+}
+
+// Must retrieves the session service in the given container or panic otherwise
+func Must(container *service.Container) Service {
+	service, err := From(container)
+	if err != nil {
+		panic(err)
+	}
+	return service
+}

service/session/session.go

@@ -0,0 +1,16 @@
+package session
+
+import (
+	"net/http"
+)
+
+// Session defines the API of a Session
+type Session interface {
+	Set(string, interface{})
+	Unset(string)
+	Get(string) interface{}
+	AddFlash(flashType FlashType, message string)
+	Flashes(flashTypes ...FlashType) []Flash
+	Save(http.ResponseWriter, *http.Request) error
+	Delete(http.ResponseWriter, *http.Request) error
+}