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notices.go
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package cmd
import (
"encoding/json"
"fmt"
"net/http"
"net/url"
"os"
"path/filepath"
"runtime"
"strings"
"time"
log "github.com/sirupsen/logrus"
)
type Notice struct {
Level string `json:"level"`
Message string `json:"message"`
}
func displayNotices(input *Input) {
// Avoid causing trouble parsing the json
if input.listOptions {
return
}
select {
case notices := <-noticesLoaded:
if len(notices) > 0 {
noticeLogger := log.New()
if input.jsonLogger {
noticeLogger.SetFormatter(&log.JSONFormatter{})
} else {
noticeLogger.SetFormatter(&log.TextFormatter{
DisableQuote: true,
DisableTimestamp: true,
PadLevelText: true,
})
}
fmt.Printf("\n")
for _, notice := range notices {
level, err := log.ParseLevel(notice.Level)
if err != nil {
level = log.InfoLevel
}
noticeLogger.Log(level, notice.Message)
}
}
case <-time.After(time.Second * 1):
log.Debugf("Timeout waiting for notices")
}
}
var noticesLoaded = make(chan []Notice)
func loadVersionNotices(version string) {
go func() {
noticesLoaded <- getVersionNotices(version)
}()
}
const NoticeURL = "https://api.nektosact.com/notices"
func getVersionNotices(version string) []Notice {
if os.Getenv("ACT_DISABLE_VERSION_CHECK") == "1" {
return nil
}
noticeURL, err := url.Parse(NoticeURL)
if err != nil {
log.Error(err)
return nil
}
query := noticeURL.Query()
query.Add("os", runtime.GOOS)
query.Add("arch", runtime.GOARCH)
query.Add("version", version)
noticeURL.RawQuery = query.Encode()
client := &http.Client{}
req, err := http.NewRequest("GET", noticeURL.String(), nil)
if err != nil {
log.Debug(err)
return nil
}
etag := loadNoticesEtag()
if etag != "" {
log.Debugf("Conditional GET for notices etag=%s", etag)
req.Header.Set("If-None-Match", etag)
}
resp, err := client.Do(req)
if err != nil {
log.Debug(err)
return nil
}
newEtag := resp.Header.Get("Etag")
if newEtag != "" {
log.Debugf("Saving notices etag=%s", newEtag)
saveNoticesEtag(newEtag)
}
defer resp.Body.Close()
notices := []Notice{}
if resp.StatusCode == 304 {
log.Debug("No new notices")
return nil
}
if err := json.NewDecoder(resp.Body).Decode(¬ices); err != nil {
log.Debug(err)
return nil
}
return notices
}
func loadNoticesEtag() string {
p := etagPath()
content, err := os.ReadFile(p)
if err != nil {
log.Debugf("Unable to load etag from %s: %e", p, err)
}
return strings.TrimSuffix(string(content), "\n")
}
func saveNoticesEtag(etag string) {
p := etagPath()
err := os.WriteFile(p, []byte(strings.TrimSuffix(etag, "\n")), 0o600)
if err != nil {
log.Debugf("Unable to save etag to %s: %e", p, err)
}
}
func etagPath() string {
dir := filepath.Join(CacheHomeDir, "act")
if err := os.MkdirAll(dir, 0o777); err != nil {
log.Fatal(err)
}
return filepath.Join(dir, ".notices.etag")
}