mirror of https://github.com/jlelse/GoBlog
70 lines
1.6 KiB
Go
70 lines
1.6 KiB
Go
package main
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import (
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"github.com/gorilla/feeds"
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"net/http"
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"strings"
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"time"
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)
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type feedType string
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const (
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NONE feedType = ""
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RSS feedType = "rss"
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ATOM feedType = "atom"
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JSON feedType = "json"
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)
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func generateFeed(f feedType, w http.ResponseWriter, r *http.Request, posts []*Post, title string, description string) {
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now := time.Now()
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if title == "" {
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title = appConfig.Blog.Title
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}
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if description == "" {
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description = appConfig.Blog.Description
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}
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feed := &feeds.Feed{
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Title: title,
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Description: description,
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Link: &feeds.Link{Href: appConfig.Server.PublicAddress + strings.TrimSuffix(r.URL.Path, "."+string(f))},
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Created: now,
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}
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for _, postItem := range posts {
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htmlContent, _ := renderMarkdown(postItem.Content)
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feed.Add(&feeds.Item{
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Title: postItem.title(),
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Link: &feeds.Link{Href: appConfig.Server.PublicAddress + postItem.Path},
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Description: postItem.summary(),
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Id: postItem.Path,
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Content: string(htmlContent),
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})
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}
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var feedStr string
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var err error
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switch f {
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case RSS:
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feedStr, err = feed.ToRss()
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case ATOM:
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feedStr, err = feed.ToAtom()
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case JSON:
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feedStr, err = feed.ToJSON()
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default:
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return
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}
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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switch f {
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case RSS:
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w.Header().Add("Content-Type", "application/rss+xml; charset=utf-8")
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case ATOM:
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w.Header().Add("Content-Type", "application/atom+xml; charset=utf-8")
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case JSON:
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w.Header().Add("Content-Type", "application/feed+json; charset=utf-8")
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}
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w.WriteHeader(http.StatusOK)
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_, _ = w.Write([]byte(feedStr))
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}
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