feat: implement shared-album multi-user photo album

Backend (Go/Gin/pgx): env config, pgx pool with retries, Garage S3 client (path-style, region garage), embedded golang-migrate migrations, JWT auth with refresh rotation, albums CRUD, members/roles/invites with no-escalation matrix, photo upload + async imaging/goexif WebP variants, cursor pagination, presigned URLs, likes/comments, SSE hub (album + personal), notifications, share links. Frontend (SvelteKit 2 + Svelte 5 + Tailwind v4): API wrapper with 401 refresh, auth store, all screens, Uploader/PhotoGrid/Lightbox/Comments, SSE client with reconnect + REST catch-up, three themes + system via data-theme. Deploy without Docker: Makefile builds the frontend into backend/static and embeds it (go:embed) into a single statically linked binary; systemd unit and nginx SSE example included. Use gen2brain/webp (-tags nodynamic) instead of cgo kolesa-team/go-webp to keep CGO_ENABLED=0 static builds; design.md/proposal.md updated accordingly.
2026-10-10 12:50:33 +03:00
commit 2b2b342492
105 changed files with 12494 additions and 0 deletions
@@ -0,0 +1,58 @@
+package sharelinks
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"shared-album/internal/auth"
+	"shared-album/internal/httpx"
+)
+
+type Handler struct {
+	svc *Service
+}
+
+func NewHandler(svc *Service) *Handler { return &Handler{svc: svc} }
+
+type createRequest struct {
+	ExpiresIn string `json:"expires_in"`
+}
+
+func (h *Handler) Create(c *gin.Context) {
+	var req createRequest
+	_ = c.ShouldBindJSON(&req)
+	var ttl time.Duration
+	if req.ExpiresIn != "" {
+		d, err := time.ParseDuration(req.ExpiresIn)
+		if err != nil {
+			httpx.RespondError(c, httpx.BadRequest("invalid_expires_in", "invalid expires_in duration"))
+			return
+		}
+		ttl = d
+	}
+	link, err := h.svc.Create(c.Request.Context(), c.Param("id"), auth.UserID(c), ttl)
+	if err != nil {
+		httpx.RespondError(c, err)
+		return
+	}
+	c.JSON(http.StatusCreated, gin.H{"share_link": link})
+}
+
+func (h *Handler) List(c *gin.Context) {
+	list, err := h.svc.List(c.Request.Context(), c.Param("id"), auth.UserID(c))
+	if err != nil {
+		httpx.RespondError(c, err)
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"share_links": list})
+}
+
+func (h *Handler) Revoke(c *gin.Context) {
+	if err := h.svc.Revoke(c.Request.Context(), c.Param("id"), c.Param("link_id"), auth.UserID(c)); err != nil {
+		httpx.RespondError(c, err)
+		return
+	}
+	c.Status(http.StatusNoContent)
+}
@@ -0,0 +1,95 @@
+package sharelinks
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"shared-album/internal/auth"
+	"shared-album/internal/httpx"
+	"shared-album/internal/models"
+	"shared-album/internal/roles"
+)
+
+type AlbumAccess interface {
+	Access(ctx context.Context, albumID, userID string) (*models.Album, string, error)
+}
+
+type Service struct {
+	store  *Store
+	albums AlbumAccess
+}
+
+func NewService(store *Store, albums AlbumAccess) *Service {
+	return &Service{store: store, albums: albums}
+}
+
+func (s *Service) Create(ctx context.Context, albumID, actorID string, ttl time.Duration) (*models.ShareLink, error) {
+	_, role, err := s.albums.Access(ctx, albumID, actorID)
+	if err != nil {
+		return nil, err
+	}
+	if !roles.CanManageShares(role) {
+		return nil, httpx.Forbidden("forbidden", "only owner and admin can manage share links")
+	}
+	if ttl <= 0 {
+		ttl = 7 * 24 * time.Hour
+	}
+	token, _, err := auth.NewRefreshToken()
+	if err != nil {
+		return nil, err
+	}
+	l := &models.ShareLink{
+		ID:        auth.NewID(),
+		AlbumID:   albumID,
+		Token:     token,
+		CreatedBy: actorID,
+		ExpiresAt: time.Now().Add(ttl),
+	}
+	if err := s.store.Create(ctx, l); err != nil {
+		return nil, err
+	}
+	return l, nil
+}
+
+func (s *Service) List(ctx context.Context, albumID, actorID string) ([]models.ShareLink, error) {
+	_, role, err := s.albums.Access(ctx, albumID, actorID)
+	if err != nil {
+		return nil, err
+	}
+	if !roles.CanManageShares(role) {
+		return nil, httpx.Forbidden("forbidden", "only owner and admin can manage share links")
+	}
+	return s.store.ListByAlbum(ctx, albumID)
+}
+
+func (s *Service) Revoke(ctx context.Context, albumID, linkID, actorID string) error {
+	_, role, err := s.albums.Access(ctx, albumID, actorID)
+	if err != nil {
+		return err
+	}
+	if !roles.CanManageShares(role) {
+		return httpx.Forbidden("forbidden", "only owner and admin can manage share links")
+	}
+	if err := s.store.Revoke(ctx, linkID, albumID); err != nil {
+		if errors.Is(err, ErrNotFound) {
+			return httpx.NotFound("share_link_not_found", "share link not found")
+		}
+		return err
+	}
+	return nil
+}
+
+func (s *Service) Resolve(ctx context.Context, token string) (*models.ShareLink, error) {
+	l, err := s.store.GetByToken(ctx, token)
+	if err != nil {
+		if errors.Is(err, ErrNotFound) {
+			return nil, httpx.NotFound("share_link_not_found", "share link not found")
+		}
+		return nil, err
+	}
+	if !l.Active(time.Now()) {
+		return nil, httpx.Forbidden("share_link_inactive", "share link is expired or revoked")
+	}
+	return l, nil
+}
@@ -0,0 +1,76 @@
+package sharelinks
+
+import (
+	"context"
+	"errors"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgxpool"
+
+	"shared-album/internal/models"
+)
+
+var ErrNotFound = errors.New("not found")
+
+type Store struct {
+	pool *pgxpool.Pool
+}
+
+func NewStore(pool *pgxpool.Pool) *Store { return &Store{pool: pool} }
+
+func (s *Store) Create(ctx context.Context, l *models.ShareLink) error {
+	return s.pool.QueryRow(ctx,
+		`INSERT INTO share_links (id, album_id, token, created_by, expires_at)
+		 VALUES ($1, $2, $3, $4, $5)
+		 RETURNING created_at`,
+		l.ID, l.AlbumID, l.Token, l.CreatedBy, l.ExpiresAt,
+	).Scan(&l.CreatedAt)
+}
+
+func (s *Store) ListByAlbum(ctx context.Context, albumID string) ([]models.ShareLink, error) {
+	rows, err := s.pool.Query(ctx,
+		`SELECT id, album_id, token, created_by, created_at, expires_at, revoked_at
+		 FROM share_links WHERE album_id = $1 ORDER BY created_at DESC`, albumID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	out := []models.ShareLink{}
+	for rows.Next() {
+		var l models.ShareLink
+		if err := rows.Scan(&l.ID, &l.AlbumID, &l.Token, &l.CreatedBy, &l.CreatedAt, &l.ExpiresAt, &l.RevokedAt); err != nil {
+			return nil, err
+		}
+		out = append(out, l)
+	}
+	return out, rows.Err()
+}
+
+func (s *Store) GetByToken(ctx context.Context, token string) (*models.ShareLink, error) {
+	var l models.ShareLink
+	err := s.pool.QueryRow(ctx,
+		`SELECT id, album_id, token, created_by, created_at, expires_at, revoked_at
+		 FROM share_links WHERE token = $1`, token).
+		Scan(&l.ID, &l.AlbumID, &l.Token, &l.CreatedBy, &l.CreatedAt, &l.ExpiresAt, &l.RevokedAt)
+	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			return nil, ErrNotFound
+		}
+		return nil, err
+	}
+	return &l, nil
+}
+
+func (s *Store) Revoke(ctx context.Context, id, albumID string) error {
+	tag, err := s.pool.Exec(ctx,
+		`UPDATE share_links SET revoked_at = now() WHERE id = $1 AND album_id = $2 AND revoked_at IS NULL`,
+		id, albumID)
+	if err != nil {
+		return err
+	}
+	if tag.RowsAffected() == 0 {
+		return ErrNotFound
+	}
+	return nil
+}