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|
package feed
import (
ctxt "context"
"crypto/tls"
"fmt"
"net/http"
"time"
"github.com/lithammer/shortuuid"
"github.com/mmcdole/gofeed"
"github.com/Necoro/feed2imap-go/pkg/log"
)
// share HTTP clients
var (
stdHTTPClient *http.Client
unsafeHTTPClient *http.Client
)
func init() {
// std
stdHTTPClient = &http.Client{Transport: http.DefaultTransport}
// unsafe
tlsConfig := &tls.Config{InsecureSkipVerify: true}
transport := http.DefaultTransport.(*http.Transport).Clone()
transport.TLSClientConfig = tlsConfig
unsafeHTTPClient = &http.Client{Transport: transport}
}
func context(timeout int) (ctxt.Context, ctxt.CancelFunc) {
return ctxt.WithTimeout(ctxt.Background(), time.Duration(timeout)*time.Second)
}
func httpClient(disableTLS bool) *http.Client {
if disableTLS {
return unsafeHTTPClient
}
return stdHTTPClient
}
func parseFeed(feed *Feed) error {
ctx, cancel := context(feed.Global.Timeout)
defer cancel()
fp := gofeed.NewParser()
fp.Client = httpClient(feed.NoTLS)
parsedFeed, err := fp.ParseURLWithContext(feed.Url, ctx)
if err != nil {
return fmt.Errorf("while fetching %s from %s: %w", feed.Name, feed.Url, err)
}
feed.feed = parsedFeed
feed.items = make([]feeditem, len(parsedFeed.Items))
for idx, item := range parsedFeed.Items {
feed.items[idx] = feeditem{Feed: parsedFeed, Item: item, itemId: shortuuid.New()}
}
return nil
}
func handleFeed(feed *Feed) {
log.Printf("Fetching %s from %s", feed.Name, feed.Url)
err := parseFeed(feed)
if err != nil {
if feed.cached.Failures() >= feed.Global.MaxFailures {
log.Error(err)
} else {
log.Print(err)
}
}
}
|
