114 lines
2.8 KiB
Go
114 lines
2.8 KiB
Go
// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
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// SPDX-License-Identifier: Apache-2.0
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package rdf // import "miniflux.app/v2/internal/reader/rdf"
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import (
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"html"
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"log/slog"
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"strings"
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"time"
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"miniflux.app/v2/internal/crypto"
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"miniflux.app/v2/internal/model"
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"miniflux.app/v2/internal/reader/date"
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"miniflux.app/v2/internal/reader/sanitizer"
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"miniflux.app/v2/internal/urllib"
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)
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type RDFAdapter struct {
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rdf *RDF
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}
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func NewRDFAdapter(rdf *RDF) *RDFAdapter {
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return &RDFAdapter{rdf}
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}
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func (r *RDFAdapter) BuildFeed(baseURL string) *model.Feed {
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feed := &model.Feed{
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Title: stripTags(r.rdf.Channel.Title),
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FeedURL: strings.TrimSpace(baseURL),
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SiteURL: strings.TrimSpace(r.rdf.Channel.Link),
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}
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if feed.Title == "" {
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feed.Title = baseURL
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}
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if siteURL, err := urllib.AbsoluteURL(feed.FeedURL, feed.SiteURL); err == nil {
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feed.SiteURL = siteURL
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}
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for _, item := range r.rdf.Items {
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entry := model.NewEntry()
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itemLink := strings.TrimSpace(item.Link)
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// Populate the entry URL.
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if itemLink == "" {
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entry.URL = feed.SiteURL // Fallback to the feed URL if the entry URL is empty.
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} else if entryURL, err := urllib.AbsoluteURL(feed.SiteURL, itemLink); err == nil {
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entry.URL = entryURL
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} else {
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entry.URL = itemLink
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}
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// Populate the entry title.
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for _, title := range []string{item.Title, item.DublinCoreTitle} {
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title = strings.TrimSpace(title)
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if title != "" {
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entry.Title = html.UnescapeString(title)
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break
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}
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}
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// If the entry title is empty, we use the entry URL as a fallback.
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if entry.Title == "" {
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entry.Title = entry.URL
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}
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// Populate the entry content.
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if item.DublinCoreContent != "" {
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entry.Content = item.DublinCoreContent
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} else {
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entry.Content = item.Description
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}
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// Generate the entry hash.
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hashValue := itemLink
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if hashValue == "" {
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hashValue = item.Title + item.Description // Fallback to the title and description if the link is empty.
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}
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entry.Hash = crypto.Hash(hashValue)
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// Populate the entry date.
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entry.Date = time.Now()
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if item.DublinCoreDate != "" {
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if itemDate, err := date.Parse(item.DublinCoreDate); err != nil {
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slog.Debug("Unable to parse date from RDF feed",
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slog.String("date", item.DublinCoreDate),
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slog.String("link", itemLink),
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slog.Any("error", err),
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)
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} else {
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entry.Date = itemDate
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}
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}
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// Populate the entry author.
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switch {
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case item.DublinCoreCreator != "":
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entry.Author = stripTags(item.DublinCoreCreator)
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case r.rdf.Channel.DublinCoreCreator != "":
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entry.Author = stripTags(r.rdf.Channel.DublinCoreCreator)
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}
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feed.Entries = append(feed.Entries, entry)
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}
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return feed
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}
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func stripTags(value string) string {
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return strings.TrimSpace(sanitizer.StripTags(value))
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}
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