added logic function to check sessions

backend/internal/app/data.go

@@ -3,6 +3,8 @@ package app
 import "threadule/backend/internal/data/models"
 
 type Data interface {
+	GetSession(id string) (*models.Session, error)
+	UpdateSession(session *models.Session) error
 	CleanupSessions() error
 
 	UpdateTweet(tweet *models.Tweet) error

backend/internal/app/logic.go

@@ -1,4 +1,7 @@
 package app
 
+import "threadule/backend/internal/data/models"
+
 type Logic interface {
+	AuthenticateSession(token string) (*models.User, error)
 }

backend/internal/data/session.go

@@ -11,3 +11,22 @@ func (d *Data) CleanupSessions() error {
 		Delete(&models.Session{}).
 		Error
 }
+
+func (d *Data) GetSession(id string) (*models.Session, error) {
+	var session models.Session
+	err := d.db.
+		Where("valid_until > ?", time.Now()).
+		Where("id = ?", id).
+		First(&session).
+		Error
+	if err != nil {
+		return nil, err
+	}
+	return &session, nil
+}
+
+func (d *Data) UpdateSession(session *models.Session) error {
+	return d.db.
+		Save(session).
+		Error
+}

backend/internal/data/thread.go

@@ -6,7 +6,9 @@ import (
 )
 
 func (d *Data) UpdateThread(thread *models.Thread) error {
-	return d.db.Save(thread).Error
+	return d.db.
+		Save(thread).
+		Error
 }
 
 func (d *Data) GetTweetsForThread(thread *models.Thread) ([]models.Tweet, error) {
@@ -14,7 +16,8 @@ func (d *Data) GetTweetsForThread(thread *models.Thread) ([]models.Tweet, error)
 	err := d.db.
 		Where("thread_id = ?", thread.ID).
 		Order("ordinal ASC").
-		Find(&tweets).Error
+		Find(&tweets).
+		Error
 	return tweets, err
 }
 

backend/internal/data/tweet..go

@@ -3,5 +3,7 @@ package data
 import "threadule/backend/internal/data/models"
 
 func (d *Data) UpdateTweet(tweet *models.Tweet) error {
-	return d.db.Save(tweet).Error
+	return d.db.
+		Save(tweet).
+		Error
 }

backend/internal/logic/auth.go

@@ -1,8 +1,31 @@
 package logic
 
+import (
+	"errors"
+	"threadule/backend/internal/data/models"
+	"time"
+)
+
+const sessionDuration = 7 * 24 * time.Hour
+
 func (l *Logic) scheduleTriggerAuth() {
 	err := l.ctx.Data.CleanupSessions()
 	if err != nil {
 		l.ctx.Log.Errorf("couldn't clean up sessions: %v", err)
 	}
 }
+
+func (l *Logic) AuthenticateSession(token string) (*models.User, error) {
+	session, err := l.ctx.Data.GetSession(token)
+	if err != nil {
+		return nil, errors.New("invalid session")
+	}
+
+	session.ValidUntil = time.Now().Add(sessionDuration)
+	err = l.ctx.Data.UpdateSession(session)
+	if err != nil {
+		l.ctx.Log.Errorf("couldn't extend session: %v", err)
+	}
+
+	return session.User, nil
+}

backend/internal/logic/logic.go

@@ -1,6 +1,8 @@
 package logic
 
-import "threadule/backend/internal/app"
+import (
+	"threadule/backend/internal/app"
+)
 
 type Logic struct {
 	ctx *app.Context