Move internal packages to an internal folder

For reference: https://go.dev/doc/go1.4#internalpackages

internal/ui/opml_upload.go

@@ -0,0 +1,105 @@
+// 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"
+
+	"miniflux.app/v2/internal/config"
+	"miniflux.app/v2/internal/http/client"
+	"miniflux.app/v2/internal/http/request"
+	"miniflux.app/v2/internal/http/response/html"
+	"miniflux.app/v2/internal/http/route"
+	"miniflux.app/v2/internal/logger"
+	"miniflux.app/v2/internal/reader/opml"
+	"miniflux.app/v2/internal/ui/session"
+	"miniflux.app/v2/internal/ui/view"
+)
+
+func (h *handler) uploadOPML(w http.ResponseWriter, r *http.Request) {
+	user, err := h.store.UserByID(request.UserID(r))
+	if err != nil {
+		html.ServerError(w, r, err)
+		return
+	}
+
+	file, fileHeader, err := r.FormFile("file")
+	if err != nil {
+		logger.Error("[UI:UploadOPML] %v", err)
+		html.Redirect(w, r, route.Path(h.router, "import"))
+		return
+	}
+	defer file.Close()
+
+	logger.Debug(
+		"[UI:UploadOPML] User #%d uploaded this file: %s (%d bytes)",
+		user.ID,
+		fileHeader.Filename,
+		fileHeader.Size,
+	)
+
+	sess := session.New(h.store, request.SessionID(r))
+	view := view.New(h.tpl, r, sess)
+	view.Set("menu", "feeds")
+	view.Set("user", user)
+	view.Set("countUnread", h.store.CountUnreadEntries(user.ID))
+	view.Set("countErrorFeeds", h.store.CountUserFeedsWithErrors(user.ID))
+
+	if fileHeader.Size == 0 {
+		view.Set("errorMessage", "error.empty_file")
+		html.OK(w, r, view.Render("import"))
+		return
+	}
+
+	if impErr := opml.NewHandler(h.store).Import(user.ID, file); impErr != nil {
+		view.Set("errorMessage", impErr)
+		html.OK(w, r, view.Render("import"))
+		return
+	}
+
+	html.Redirect(w, r, route.Path(h.router, "feeds"))
+}
+
+func (h *handler) fetchOPML(w http.ResponseWriter, r *http.Request) {
+	user, err := h.store.UserByID(request.UserID(r))
+	if err != nil {
+		html.ServerError(w, r, err)
+		return
+	}
+
+	url := r.FormValue("url")
+	if url == "" {
+		html.Redirect(w, r, route.Path(h.router, "import"))
+		return
+	}
+
+	logger.Debug(
+		"[UI:FetchOPML] User #%d fetching this URL: %s",
+		user.ID,
+		url,
+	)
+
+	sess := session.New(h.store, request.SessionID(r))
+	view := view.New(h.tpl, r, sess)
+	view.Set("menu", "feeds")
+	view.Set("user", user)
+	view.Set("countUnread", h.store.CountUnreadEntries(user.ID))
+	view.Set("countErrorFeeds", h.store.CountUserFeedsWithErrors(user.ID))
+
+	clt := client.NewClientWithConfig(url, config.Opts)
+	resp, err := clt.Get()
+	if err != nil {
+		view.Set("errorMessage", err)
+		html.OK(w, r, view.Render("import"))
+		return
+	}
+
+	if impErr := opml.NewHandler(h.store).Import(user.ID, resp.Body); impErr != nil {
+		view.Set("errorMessage", impErr)
+		html.OK(w, r, view.Render("import"))
+		return
+	}
+
+	html.Redirect(w, r, route.Path(h.router, "feeds"))
+}