miniflux_v2/internal/ui/feed_icon.go

// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
// SPDX-License-Identifier: Apache-2.0

package ui // import "miniflux.app/v2/internal/ui"

import (
	"net/http"
	"time"

	"miniflux.app/v2/internal/http/request"
	"miniflux.app/v2/internal/http/response"
)

func (h *handler) showFeedIcon(w http.ResponseWriter, r *http.Request) {
	externalIconID := request.RouteStringParam(r, "externalIconID")
	icon, err := h.store.IconByExternalID(externalIconID)
	if err != nil {
		response.HTMLServerError(w, r, err)
		return
	}

	if icon == nil {
		response.HTMLNotFound(w, r)
		return
	}

	response.NewBuilder(w, r).WithCaching(icon.Hash, 72*time.Hour, func(b *response.Builder) {
		b.WithHeader("Content-Security-Policy", response.ContentSecurityPolicyForUntrustedContent)
		b.WithHeader("Content-Type", icon.MimeType)
		b.WithBodyAsBytes(icon.Content)
		if icon.MimeType != "image/svg+xml" {
			b.WithoutCompression()
		}
		b.Write()
	})
}