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// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package json // import "miniflux.app/v2/internal/reader/json"
import (
"log/slog"
"strings"
"time"
"miniflux.app/v2/internal/crypto"
"miniflux.app/v2/internal/model"
"miniflux.app/v2/internal/reader/date"
"miniflux.app/v2/internal/reader/sanitizer"
"miniflux.app/v2/internal/urllib"
)
type jsonFeed struct {
Version string `json:"version"`
Title string `json:"title"`
SiteURL string `json:"home_page_url"`
IconURL string `json:"icon"`
FaviconURL string `json:"favicon"`
FeedURL string `json:"feed_url"`
Authors []jsonAuthor `json:"authors"`
Author jsonAuthor `json:"author"`
Items []jsonItem `json:"items"`
}
type jsonAuthor struct {
Name string `json:"name"`
URL string `json:"url"`
}
type jsonItem struct {
ID string `json:"id"`
URL string `json:"url"`
Title string `json:"title"`
Summary string `json:"summary"`
Text string `json:"content_text"`
HTML string `json:"content_html"`
DatePublished string `json:"date_published"`
DateModified string `json:"date_modified"`
Authors []jsonAuthor `json:"authors"`
Author jsonAuthor `json:"author"`
Attachments []jsonAttachment `json:"attachments"`
Tags []string `json:"tags"`
}
type jsonAttachment struct {
URL string `json:"url"`
MimeType string `json:"mime_type"`
Title string `json:"title"`
Size int64 `json:"size_in_bytes"`
Duration int `json:"duration_in_seconds"`
}
func (j *jsonFeed) GetAuthor() string {
if len(j.Authors) > 0 {
return (getAuthor(j.Authors[0]))
}
return getAuthor(j.Author)
}
func (j *jsonFeed) Transform(baseURL string) *model.Feed {
var err error
feed := new(model.Feed)
feed.FeedURL, err = urllib.AbsoluteURL(baseURL, j.FeedURL)
if err != nil {
feed.FeedURL = j.FeedURL
}
feed.SiteURL, err = urllib.AbsoluteURL(baseURL, j.SiteURL)
if err != nil {
feed.SiteURL = j.SiteURL
}
feed.IconURL = strings.TrimSpace(j.IconURL)
if feed.IconURL == "" {
feed.IconURL = strings.TrimSpace(j.FaviconURL)
}
feed.Title = strings.TrimSpace(j.Title)
if feed.Title == "" {
feed.Title = feed.SiteURL
}
for _, item := range j.Items {
entry := item.Transform()
entryURL, err := urllib.AbsoluteURL(feed.SiteURL, entry.URL)
if err == nil {
entry.URL = entryURL
}
if entry.Author == "" {
entry.Author = j.GetAuthor()
}
feed.Entries = append(feed.Entries, entry)
}
return feed
}
func (j *jsonItem) GetDate() time.Time {
for _, value := range []string{j.DatePublished, j.DateModified} {
if value != "" {
d, err := date.Parse(value)
if err != nil {
slog.Warn("Unable to parse date from JSON feed",
slog.String("date", value),
slog.String("url", j.URL),
slog.Any("error", err),
)
return time.Now()
}
return d
}
}
return time.Now()
}
func (j *jsonItem) GetAuthor() string {
if len(j.Authors) > 0 {
return getAuthor(j.Authors[0])
}
return getAuthor(j.Author)
}
func (j *jsonItem) GetHash() string {
for _, value := range []string{j.ID, j.URL, j.Text + j.HTML + j.Summary} {
if value != "" {
return crypto.Hash(value)
}
}
return ""
}
func (j *jsonItem) GetTitle() string {
if j.Title != "" {
return j.Title
}
for _, value := range []string{j.Summary, j.Text, j.HTML} {
if value != "" {
return sanitizer.TruncateHTML(value, 100)
}
}
return j.URL
}
func (j *jsonItem) GetContent() string {
for _, value := range []string{j.HTML, j.Text, j.Summary} {
if value != "" {
return value
}
}
return ""
}
func (j *jsonItem) GetEnclosures() model.EnclosureList {
enclosures := make(model.EnclosureList, 0)
for _, attachment := range j.Attachments {
if attachment.URL == "" {
continue
}
enclosures = append(enclosures, &model.Enclosure{
URL: attachment.URL,
MimeType: attachment.MimeType,
Size: attachment.Size,
})
}
return enclosures
}
func (j *jsonItem) Transform() *model.Entry {
entry := model.NewEntry()
entry.URL = j.URL
entry.Date = j.GetDate()
entry.Author = j.GetAuthor()
entry.Hash = j.GetHash()
entry.Content = j.GetContent()
entry.Title = strings.TrimSpace(j.GetTitle())
entry.Enclosures = j.GetEnclosures()
if len(j.Tags) > 0 {
entry.Tags = j.Tags
}
return entry
}
func getAuthor(author jsonAuthor) string {
if author.Name != "" {
return strings.TrimSpace(author.Name)
}
return ""
}
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