Initial commit

cmd/server/login.go

@@ -0,0 +1,78 @@
+package main
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+	"time"
+
+	"logjensticks/internal/auth"
+	"logjensticks/internal/db"
+)
+
+type loginRequest struct {
+	Username string `json:"username"`
+	Password string `json:"password"`
+}
+
+func handleLogin(dbc *db.Client, secureCookie bool) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPost {
+			writeError(w, http.StatusMethodNotAllowed, "METHOD_NOT_ALLOWED", "method not allowed")
+			return
+		}
+
+		var req loginRequest
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil || req.Username == "" || req.Password == "" {
+			writeError(w, http.StatusBadRequest, "BAD_REQUEST", "username and password required")
+			return
+		}
+
+		token, session, err := auth.Login(r.Context(), dbc, req.Username, req.Password)
+		if errors.Is(err, auth.ErrInvalidCredentials) {
+			writeError(w, http.StatusUnauthorized, "INVALID_CREDENTIALS", "invalid username or password")
+			return
+		}
+		if err != nil {
+			writeError(w, http.StatusInternalServerError, "SERVER_ERROR", "internal server error")
+			return
+		}
+
+		http.SetCookie(w, &http.Cookie{
+			Name:     auth.CookieName,
+			Value:    token,
+			Path:     "/",
+			HttpOnly: true,
+			Secure:   secureCookie,
+			SameSite: http.SameSiteStrictMode,
+			MaxAge:   int(db.SessionTTL / time.Second),
+		})
+
+		writeSuccess(w, http.StatusOK, map[string]string{"role": session.Role})
+	}
+}
+
+func handleLogout(dbc *db.Client, secureCookie bool) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPost {
+			writeError(w, http.StatusMethodNotAllowed, "METHOD_NOT_ALLOWED", "method not allowed")
+			return
+		}
+
+		if cookie, err := r.Cookie(auth.CookieName); err == nil {
+			auth.DeleteSession(r.Context(), dbc, cookie.Value)
+		}
+
+		http.SetCookie(w, &http.Cookie{
+			Name:     auth.CookieName,
+			Value:    "",
+			Path:     "/",
+			HttpOnly: true,
+			Secure:   secureCookie,
+			SameSite: http.SameSiteStrictMode,
+			MaxAge:   -1,
+		})
+
+		writeSuccess(w, http.StatusOK, nil)
+	}
+}