fix: render public folder links

2026-06-16 16:39:04 +03:00
parent bfb1c2d0ab
commit 6bd2251a98
3 changed files with 203 additions and 6 deletions
--- a/internal/handler/node.go
+++ b/internal/handler/node.go
@@ -8,6 +8,7 @@ import (
 	"io"
 	"net/http"
 	"path/filepath"
+	"strconv"
 	"strings"
 	"time"

@@ -368,19 +369,19 @@ func (h *NodeHandler) PublicMeta(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	if node.NodeType == model.NodeTypeFile {
-		h.renderPublicPreview(w, r, node)
+		h.renderPublicPreview(w, node, h.publicURL(chi.URLParam(r, "token"))+"/download")
 		return
 	}
-	response := model.PublicNodeResponse{Node: node}
 	if node.NodeType == model.NodeTypeFolder {
 		children, err := h.repo.ListChildrenForPublic(r.Context(), node.ID)
 		if err != nil {
 			writeInternalError(w, r, err, "failed to list folder")
 			return
 		}
-		response.Children = children
+		h.renderPublicFolder(w, r, node, children)
+		return
 	}
-	writeJSON(w, http.StatusOK, response)
+	h.renderPublicUnavailable(w, node)
 }

 func (h *NodeHandler) PublicDownload(w http.ResponseWriter, r *http.Request) {
@@ -391,6 +392,36 @@ func (h *NodeHandler) PublicDownload(w http.ResponseWriter, r *http.Request) {
 	h.streamNode(w, r, node)
 }

+func (h *NodeHandler) PublicChildMeta(w http.ResponseWriter, r *http.Request) {
+	node, ok := h.publicNodeByID(w, r)
+	if !ok {
+		return
+	}
+	token := chi.URLParam(r, "token")
+	if node.NodeType == model.NodeTypeFile {
+		h.renderPublicPreview(w, node, h.publicNodeURL(token, node.ID)+"/download")
+		return
+	}
+	if node.NodeType == model.NodeTypeFolder {
+		children, err := h.repo.ListChildrenForPublic(r.Context(), node.ID)
+		if err != nil {
+			writeInternalError(w, r, err, "failed to list folder")
+			return
+		}
+		h.renderPublicFolder(w, r, node, children)
+		return
+	}
+	h.renderPublicUnavailable(w, node)
+}
+
+func (h *NodeHandler) PublicChildDownload(w http.ResponseWriter, r *http.Request) {
+	node, ok := h.publicNodeByID(w, r)
+	if !ok {
+		return
+	}
+	h.streamNode(w, r, node)
+}
+
 func (h *NodeHandler) requireNode(w http.ResponseWriter, r *http.Request) (*model.Node, bool) {
 	node, err := h.repo.GetForUser(r.Context(), chi.URLParam(r, "id"), commonmw.GetUserID(r.Context()), subordinates(r))
 	if errors.Is(err, repository.ErrNotFound) {
@@ -441,7 +472,20 @@ func (h *NodeHandler) publicNode(w http.ResponseWriter, r *http.Request) (*model
 	return node, true
 }

-func (h *NodeHandler) renderPublicPreview(w http.ResponseWriter, r *http.Request, node *model.Node) {
+func (h *NodeHandler) publicNodeByID(w http.ResponseWriter, r *http.Request) (*model.Node, bool) {
+	node, err := h.repo.GetPublicDescendant(r.Context(), chi.URLParam(r, "token"), chi.URLParam(r, "id"))
+	if errors.Is(err, repository.ErrNotFound) {
+		writeError(w, http.StatusNotFound, "public file not found")
+		return nil, false
+	}
+	if err != nil {
+		writeInternalError(w, r, err, "failed to open public file")
+		return nil, false
+	}
+	return node, true
+}
+
+func (h *NodeHandler) renderPublicPreview(w http.ResponseWriter, node *model.Node, downloadURL string) {
 	title := node.Title
 	if node.OriginalFilename != nil && *node.OriginalFilename != "" {
 		title = *node.OriginalFilename
@@ -450,7 +494,6 @@ func (h *NodeHandler) renderPublicPreview(w http.ResponseWriter, r *http.Request
 	if node.MimeType != nil {
 		mimeType = strings.ToLower(*node.MimeType)
 	}
-	downloadURL := h.publicURL(chi.URLParam(r, "token")) + "/download"
 	preview := `<div class="empty">Предпросмотр для этого типа файла недоступен.</div>`
 	switch {
 	case strings.HasPrefix(mimeType, "image/"):
@@ -496,10 +539,129 @@ func (h *NodeHandler) renderPublicPreview(w http.ResponseWriter, r *http.Request
 </html>`)
 }

+func (h *NodeHandler) renderPublicFolder(w http.ResponseWriter, r *http.Request, node *model.Node, children []model.Node) {
+	token := chi.URLParam(r, "token")
+	items := `<div class="empty">В папке пока нет файлов.</div>`
+	if len(children) > 0 {
+		var b strings.Builder
+		b.WriteString(`<div class="list">`)
+		for _, child := range children {
+			title := child.Title
+			if child.OriginalFilename != nil && *child.OriginalFilename != "" {
+				title = *child.OriginalFilename
+			}
+			kind := publicKind(child)
+			href := h.publicNodeURL(token, child.ID)
+			b.WriteString(`<a class="item" href="` + html.EscapeString(href) + `">`)
+			b.WriteString(`<span class="badge">` + html.EscapeString(kind) + `</span>`)
+			b.WriteString(`<span class="title">` + html.EscapeString(title) + `</span>`)
+			if child.NodeType != model.NodeTypeFolder {
+				b.WriteString(`<span class="size">` + html.EscapeString(formatBytes(child.SizeBytes)) + `</span>`)
+			}
+			b.WriteString(`</a>`)
+		}
+		b.WriteString(`</div>`)
+		items = b.String()
+	}
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	w.WriteHeader(http.StatusOK)
+	_, _ = io.WriteString(w, `<!doctype html>
+<html lang="ru">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>`+html.EscapeString(node.Title)+`</title>
+  <style>
+    :root { color-scheme: dark; font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: #0d111b; color: #edf2ff; }
+    body { margin: 0; min-height: 100vh; background: #0d111b; }
+    .shell { min-height: 100vh; display: grid; grid-template-rows: auto 1fr; }
+    header { padding: 18px 24px; border-bottom: 1px solid #263044; background: #151a2a; }
+    h1 { margin: 0; font-size: 22px; line-height: 1.35; font-weight: 800; }
+    .meta { margin-top: 6px; color: #9aa7bd; font-size: 14px; }
+    main { padding: 24px; }
+    .list { display: grid; gap: 10px; max-width: 980px; margin: 0 auto; }
+    .item { display: grid; grid-template-columns: 72px minmax(0, 1fr) auto; gap: 14px; align-items: center; min-height: 58px; padding: 12px 14px; border: 1px solid #263044; border-radius: 10px; background: #151a2a; color: inherit; text-decoration: none; }
+    .item:hover { border-color: #6366f1; background: #191f34; }
+    .badge { display: grid; place-items: center; min-height: 34px; border-radius: 8px; background: #232844; color: #c7d2fe; font-size: 12px; font-weight: 800; }
+    .title { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 700; }
+    .size { color: #9aa7bd; font-size: 14px; }
+    .empty { max-width: 640px; margin: 0 auto; padding: 28px; border: 1px dashed #263044; border-radius: 10px; background: #151a2a; color: #c6d0e1; text-align: center; }
+    @media (max-width: 680px) { .item { grid-template-columns: 58px minmax(0, 1fr); } .size { grid-column: 2; } }
+  </style>
+</head>
+<body>
+  <div class="shell">
+    <header>
+      <h1>`+html.EscapeString(node.Title)+`</h1>
+      <div class="meta">Публичный просмотр папки</div>
+    </header>
+    <main>`+items+`</main>
+  </div>
+</body>
+</html>`)
+}
+
+func (h *NodeHandler) renderPublicUnavailable(w http.ResponseWriter, node *model.Node) {
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	w.WriteHeader(http.StatusOK)
+	_, _ = io.WriteString(w, `<!doctype html>
+<html lang="ru"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1">
+<title>`+html.EscapeString(node.Title)+`</title>
+<style>:root{color-scheme:dark;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#0d111b;color:#edf2ff}body{margin:0;min-height:100vh;display:grid;place-items:center;padding:24px}.card{width:min(640px,100%);padding:28px;border:1px solid #263044;border-radius:10px;background:#151a2a}.muted{color:#9aa7bd}</style></head>
+<body><main class="card"><h1>`+html.EscapeString(node.Title)+`</h1><p class="muted">Публичный предпросмотр для этого типа документа пока недоступен.</p></main></body></html>`)
+}
+
 func (h *NodeHandler) publicURL(token string) string {
 	return strings.TrimRight(h.cfg.PublicBaseURL, "/") + "/api/files/public/" + token
 }

+func (h *NodeHandler) publicNodeURL(token, nodeID string) string {
+	return h.publicURL(token) + "/nodes/" + nodeID
+}
+
+func publicKind(node model.Node) string {
+	switch node.NodeType {
+	case model.NodeTypeFolder:
+		return "DIR"
+	case model.NodeTypeOfficeDocument:
+		if node.OfficeFormat != nil && *node.OfficeFormat != "" {
+			return strings.ToUpper(*node.OfficeFormat)
+		}
+		return "DOC"
+	case model.NodeTypeFile:
+		if node.Extension != nil && *node.Extension != "" {
+			return strings.ToUpper(*node.Extension)
+		}
+		return "FILE"
+	default:
+		return "FILE"
+	}
+}
+
+func formatBytes(bytes int64) string {
+	if bytes <= 0 {
+		return "0 Б"
+	}
+	units := []string{"Б", "КБ", "МБ", "ГБ"}
+	size := float64(bytes)
+	idx := 0
+	for size >= 1024 && idx < len(units)-1 {
+		size /= 1024
+		idx++
+	}
+	if size >= 10 || idx == 0 {
+		return strings.TrimSuffix(strings.TrimSuffix(formatFloat(size, 0), ".0"), ".") + " " + units[idx]
+	}
+	return strings.TrimSuffix(strings.TrimSuffix(formatFloat(size, 1), ".0"), ".") + " " + units[idx]
+}
+
+func formatFloat(v float64, precision int) string {
+	if precision == 0 {
+		return strconv.FormatInt(int64(v+0.5), 10)
+	}
+	return strconv.FormatFloat(v, 'f', precision, 64)
+}
+
 func (h *NodeHandler) streamNode(w http.ResponseWriter, r *http.Request, node *model.Node) {
 	if node.NodeType == model.NodeTypeFolder || node.StorageKey == nil {
 		writeError(w, http.StatusBadRequest, "node is not downloadable")
--- a/internal/repository/node.go
+++ b/internal/repository/node.go
@@ -525,6 +525,39 @@ func (r *NodeRepository) GetByPublicToken(ctx context.Context, token string) (*m
 	`, TokenHash(token)).Scan)
 }

+func (r *NodeRepository) GetPublicDescendant(ctx context.Context, token, nodeID string) (*model.Node, error) {
+	return scanNode(r.pool.QueryRow(ctx, `
+		WITH RECURSIVE root AS (
+			SELECT n.id, n.parent_id, n.node_type, n.title, n.owner_user_id, n.owner_department_id,
+			       n.created_by, n.updated_by, n.storage_key, n.original_filename, n.mime_type,
+			       n.extension, n.size_bytes, n.office_format, n.external_url, n.version,
+			       n.created_at, n.updated_at, n.trashed_at, n.purge_after, n.deleted_at
+			  FROM files_public_links l
+			  JOIN files_nodes n ON n.id = l.node_id
+			 WHERE l.token_hash = $1
+			   AND l.revoked_at IS NULL
+			   AND l.expires_at > now()
+			   AND n.deleted_at IS NULL
+		), descendants AS (
+			SELECT * FROM root
+			UNION ALL
+			SELECT c.id, c.parent_id, c.node_type, c.title, c.owner_user_id, c.owner_department_id,
+			       c.created_by, c.updated_by, c.storage_key, c.original_filename, c.mime_type,
+			       c.extension, c.size_bytes, c.office_format, c.external_url, c.version,
+			       c.created_at, c.updated_at, c.trashed_at, c.purge_after, c.deleted_at
+			  FROM files_nodes c
+			  JOIN descendants d ON c.parent_id = d.id
+			 WHERE c.deleted_at IS NULL
+		)
+		SELECT id, parent_id, node_type, title, owner_user_id, owner_department_id,
+		       created_by, updated_by, storage_key, original_filename, mime_type,
+		       extension, size_bytes, office_format, external_url, version,
+		       'view' AS effective_access, created_at, updated_at, trashed_at, purge_after, deleted_at
+		  FROM descendants
+		 WHERE id = $2
+	`, TokenHash(token), nodeID).Scan)
+}
+
 func (r *NodeRepository) Audit(ctx context.Context, actorID, action, entityType, entityID string, meta string) {
 	if meta == "" {
 		meta = "{}"