feat: auth handlers and session management

internal/server/server.go

@@ -0,0 +1,38 @@
+package server
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+	"sync"
+	"time"
+	"yoresee_dropbox/internal/store"
+)
+
+type Server struct {
+	store         *store.Store
+	accessToken   string
+	sessions      map[string]int64
+	shareSessions map[string]string
+	loginAttempts map[string]int
+	loginLockout  map[string]time.Time
+	mu            sync.Mutex
+	workspace     string
+}
+
+func New(store *store.Store, accessToken string, workspace string) *Server {
+	return &Server{
+		store:         store,
+		accessToken:   accessToken,
+		sessions:      make(map[string]int64),
+		shareSessions: make(map[string]string),
+		loginAttempts: make(map[string]int),
+		loginLockout:  make(map[string]time.Time),
+		workspace:     workspace,
+	}
+}
+
+func generateUUID() string {
+	b := make([]byte, 16)
+	rand.Read(b)
+	return hex.EncodeToString(b)
+}