/
favicon.go
73 lines (58 loc) · 1.38 KB
/
favicon.go
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package fever
import (
"encoding/base64"
"net/http"
"sync"
"github.com/pkg/errors"
"github.com/urandom/readeef/content"
"github.com/urandom/readeef/content/repo"
rffeed "github.com/urandom/readeef/feed"
"github.com/urandom/readeef/log"
)
type favicon struct {
ID content.FeedID `json:"id"`
Data string `json:"data"`
}
var (
faviconCache = map[content.FeedID]string{}
faviconCacheMu sync.RWMutex
)
func favicons(
r *http.Request,
resp resp,
user content.User,
service repo.Service,
log log.Log,
) error {
log.Infoln("Fetching fever feeds favicons")
var favicons []favicon
feeds, err := service.FeedRepo().ForUser(user)
if err != nil {
return errors.WithMessage(err, "getting user feeds")
}
for _, f := range feeds {
faviconCacheMu.RLock()
data := faviconCache[f.ID]
faviconCacheMu.RUnlock()
if data != "" {
favicons = append(favicons, favicon{f.ID, data})
continue
}
log.Debugf("Getting favicon for %q", f.SiteLink)
b, ct, err := rffeed.Favicon(f.SiteLink)
if err != nil {
log.Printf("Error getting favicon for %q: %v", f.SiteLink, err)
continue
}
data = ct + ";base64," + base64.StdEncoding.EncodeToString(b)
faviconCacheMu.Lock()
faviconCache[f.ID] = data
faviconCacheMu.Unlock()
favicons = append(favicons, favicon{f.ID, data})
}
resp["favicons"] = favicons
return nil
}
func init() {
actions["favicons"] = favicons
}