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119 lines
2.2 KiB
Go
119 lines
2.2 KiB
Go
package handlers
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import (
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"hugobot/export"
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"hugobot/feeds"
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"hugobot/posts"
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"log"
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"strings"
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"time"
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"github.com/fatih/structs"
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"github.com/mmcdole/gofeed"
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)
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type RSSHandler struct {
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rssFeed *gofeed.Feed
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}
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func (handler RSSHandler) Handle(feed feeds.Feed) error {
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posts, err := handler.FetchSince(feed.Url, feed.LastRefresh)
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if err != nil {
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return err
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}
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if posts == nil {
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log.Printf("No new posts in feed <%s>", feed.Name)
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}
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// Write posts to DB
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for _, p := range posts {
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err := p.Write(feed.FeedID)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func (handler RSSHandler) FetchSince(url string, after time.Time) ([]*posts.Post, error) {
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var err error
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var fetchedPosts []*posts.Post
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log.Printf("Fetching RSS since %v", after)
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fp := gofeed.NewParser()
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handler.rssFeed, err = fp.ParseURL(url)
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if err != nil {
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return nil, err
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}
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for _, item := range handler.rssFeed.Items {
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if item.PublishedParsed.After(after) {
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//log.Println(item.Title)
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post := &posts.Post{}
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if item.Author != nil {
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post.Author = item.Author.Name
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}
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post.Title = item.Title
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// If content is in description
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// store them in reverse in the post
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if len(item.Content) == 0 &&
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len(item.Description) > 0 {
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post.Content = item.Description
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// If content is same as description
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} else if item.Content == item.Description {
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post.Content = item.Content
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post.PostDescription = ""
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} else {
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post.Content = item.Content
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post.PostDescription = item.Description
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}
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post.Link = item.Link
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if item.UpdatedParsed != nil {
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post.Updated = *item.UpdatedParsed
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} else {
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post.Updated = *item.PublishedParsed
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}
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if item.PublishedParsed != nil {
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post.Published = *item.PublishedParsed
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}
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post.Tags = strings.Join(item.Categories, ",")
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item.Content = ""
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item.Description = ""
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post.JsonData = structs.Map(item)
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fetchedPosts = append(fetchedPosts, post)
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}
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}
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return fetchedPosts, nil
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}
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func NewRSSHandler() FormatHandler {
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return RSSHandler{}
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}
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func RSSExportMapper(exp export.Map, feed feeds.Feed, post posts.Post) error {
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if feed.Format == feeds.FormatRSS {
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exp["updated"] = post.Updated
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}
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return nil
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}
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func init() {
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export.RegisterPostMapper(RSSExportMapper)
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}
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