yonlu
38f3abbd3e
library scan creates thumbnails, cover grid component defaults to thumbnail if available.
47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
package library
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import (
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"fmt"
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"net/http"
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"path/filepath"
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"yellowjacket/backend/system"
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)
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// CoverArtHandler serves cover art images via HTTP.
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type CoverArtHandler struct {
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coversDir string
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}
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// NewCoverArtHandler creates a handler that serves cover art from the user data directory.
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func NewCoverArtHandler() (*CoverArtHandler, error) {
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dataDir, err := system.GetUserDataDirPath()
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if err != nil {
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return nil, fmt.Errorf("could not get user data directory: %w", err)
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}
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return &CoverArtHandler{
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coversDir: filepath.Join(dataDir, "covers"),
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}, nil
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}
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// ServeHTTP handles requests for cover art images.
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func (h *CoverArtHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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// Extract filename from path like "/covers/abc123.jpg"
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filename := filepath.Base(r.URL.Path)
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// Prevent directory traversal
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if filename == "." || filename == ".." {
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http.NotFound(w, r)
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return
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}
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// Filenames are content-hashed (SHA-256), so they are immutable.
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// Set aggressive cache headers to avoid redundant re-fetches.
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w.Header().Set("Cache-Control", "public, max-age=31536000, immutable")
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filePath := filepath.Join(h.coversDir, filename)
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http.ServeFile(w, r, filePath)
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}
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