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