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opml.go
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opml.go
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package api
import (
"encoding/xml"
"net/http"
"strings"
"github.com/urandom/readeef/content"
"github.com/urandom/readeef/content/repo"
"github.com/urandom/readeef/log"
"github.com/urandom/readeef/parser"
)
func importOPML(
repo repo.Feed,
feedManager feedManager,
log log.Log,
) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
user, stop := userFromRequest(w, r)
if stop {
return
}
opmlData := r.Form.Get("opml")
_, dryRun := r.Form["dryRun"]
opml, err := parser.ParseOpml([]byte(opmlData))
if err != nil {
http.Error(w, "Error parsing OPML: "+err.Error(), http.StatusBadRequest)
return
}
feeds, err := repo.ForUser(user)
if err != nil {
fatal(w, log, "Error getting user feeds: %+v", err)
return
}
feedSet := feedSet{}
for i := range feeds {
feedSet[feeds[i].ID] = struct{}{}
}
feeds = make([]content.Feed, 0, 10)
var skipped []string
for _, opmlFeed := range opml.Feeds {
if _, err := repo.FindByLink(opmlFeed.URL); err == nil {
skipped = append(skipped, opmlFeed.URL)
continue
}
discovered, err := feedManager.DiscoverFeeds(opmlFeed.URL)
if err != nil {
skipped = append(skipped, opmlFeed.URL)
continue
}
for _, f := range discovered {
if _, ok := feedSet[f.ID]; !ok {
if len(opmlFeed.Tags) > 0 {
f.Link += "#" + strings.Join(opmlFeed.Tags, ",")
}
if dryRun {
feeds = append(feeds, f)
} else {
if feed, err := addFeedByURL(f.Link, user, repo, feedManager); err == nil {
feeds = append(feeds, feed)
} else {
fatal(w, log, "Error adding feed: %+v", err)
return
}
}
}
}
}
args{"feeds": feeds, "skipped": skipped}.WriteJSON(w)
}
}
func exportOPML(
service repo.Service,
log log.Log,
) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
user, stop := userFromRequest(w, r)
if stop {
return
}
o := parser.OpmlXml{
Version: "1.1",
Head: parser.OpmlHead{Title: "Feed subscriptions of " + user.String() + " from readeef"},
}
feeds, err := service.FeedRepo().ForUser(user)
if err != nil {
fatal(w, log, "Error getting user feeds: %+v", err)
return
}
body := parser.OpmlBody{}
tagRepo := service.TagRepo()
for _, f := range feeds {
tags, err := tagRepo.ForFeed(f, user)
if err != nil {
fatal(w, log, "Error getting feed tags: %+v", err)
return
}
category := make([]string, len(tags))
for i, t := range tags {
category[i] = string(t.Value)
}
body.Outline = append(body.Outline, parser.OpmlOutline{
Text: f.Title,
Title: f.Title,
XmlUrl: f.Link,
HtmlUrl: f.SiteLink,
Category: strings.Join(category, ","),
Type: "rss",
})
}
o.Body = body
if b, err := xml.MarshalIndent(o, "", " "); err == nil {
args{"opml": xml.Header + string(b)}.WriteJSON(w)
} else {
http.Error(w, "Error marshaling opml data", http.StatusInternalServerError)
}
}
}