cchat-gtk/internal/gts/httputil/httputil.go

94 lines
1.9 KiB
Go

package httputil
import (
"context"
"io"
"net/http"
"os"
"path/filepath"
"time"
"github.com/diamondburned/cchat-gtk/internal/gts"
"github.com/gregjones/httpcache"
"github.com/gregjones/httpcache/diskcache"
"github.com/peterbourgon/diskv"
"github.com/pkg/errors"
)
var dskcached *http.Client
func init() {
var basePath = filepath.Join(os.TempDir(), "cchat-gtk-pridemonth")
http.DefaultClient.Timeout = 15 * time.Second
dskcached = &(*http.DefaultClient)
dskcached.Transport = httpcache.NewTransport(
diskcache.NewWithDiskv(diskv.New(diskv.Options{
BasePath: basePath,
TempDir: filepath.Join(basePath, "tmp"),
PathPerm: 0750,
FilePerm: 0750,
Compression: diskv.NewZlibCompressionLevel(2),
CacheSizeMax: 25 * 1024 * 1024, // 25 MiB in memory
})),
)
}
func secs(dura time.Duration) int64 {
return int64(dura / time.Second)
}
func AsyncStreamUncached(url string, fn func(r io.Reader)) {
gts.Async(func() (func(), error) {
r, err := get(context.Background(), url, false)
if err != nil {
return nil, err
}
return func() {
fn(r.Body)
r.Body.Close()
}, nil
})
}
func AsyncStream(url string, fn func(r io.Reader)) {
gts.Async(func() (func(), error) {
r, err := get(context.Background(), url, true)
if err != nil {
return nil, err
}
return func() {
fn(r.Body)
r.Body.Close()
}, nil
})
}
func get(ctx context.Context, url string, cached bool) (r *http.Response, err error) {
// if cached {
// r, err = dskcached.Get(url)
// } else {
// r, err = memcached.Get(url)
// }
q, err := http.NewRequestWithContext(ctx, "GET", url, nil)
if err != nil {
return nil, errors.Wrap(err, "Failed to make a request")
}
r, err = dskcached.Do(q)
if err != nil {
return nil, err
}
if r.StatusCode < 200 || r.StatusCode > 299 {
r.Body.Close()
return nil, errors.Errorf("Unexpected status %d", r.StatusCode)
}
return r, nil
}