Exemplo n.º 1
0
func (s *suite) TestDownloadError(c *gc.C) {
	testing.Server.Response(404, nil, nil)
	d := downloader.New(s.URL("/archive.tgz"), c.MkDir(), utils.VerifySSLHostnames)
	status := <-d.Done()
	c.Assert(status.File, gc.IsNil)
	c.Assert(status.Err, gc.ErrorMatches, `cannot download ".*": bad http response: 404 Not Found`)
}
Exemplo n.º 2
0
func (s *suite) TestStopDownload(c *gc.C) {
	tmp := c.MkDir()
	d := downloader.New(s.URL("/x.tgz"), tmp, utils.VerifySSLHostnames)
	d.Stop()
	select {
	case status := <-d.Done():
		c.Fatalf("received status %#v after stop", status)
	case <-time.After(testing.ShortWait):
	}
	infos, err := ioutil.ReadDir(tmp)
	c.Assert(err, gc.IsNil)
	c.Assert(infos, gc.HasLen, 0)
}
Exemplo n.º 3
0
func (s *suite) testDownload(c *gc.C, hostnameVerification utils.SSLHostnameVerification) {
	tmp := c.MkDir()
	testing.Server.Response(200, nil, []byte("archive"))
	d := downloader.New(s.URL("/archive.tgz"), tmp, hostnameVerification)
	status := <-d.Done()
	c.Assert(status.Err, gc.IsNil)
	c.Assert(status.File, gc.NotNil)
	defer os.Remove(status.File.Name())
	defer status.File.Close()

	dir, _ := filepath.Split(status.File.Name())
	c.Assert(filepath.Clean(dir), gc.Equals, tmp)
	assertFileContents(c, status.File, "archive")
}
Exemplo n.º 4
0
// download fetches the supplied charm and checks that it has the correct sha256
// hash, then copies it into the directory. If a value is received on abort, the
// download will be stopped.
func (d *BundlesDir) download(info BundleInfo, abort <-chan struct{}) (err error) {
	archiveURL, disableSSLHostnameVerification, err := info.ArchiveURL()
	if err != nil {
		return err
	}
	defer errors.Maskf(&err, "failed to download charm %q from %q", info.URL(), archiveURL)
	dir := d.downloadsPath()
	if err := os.MkdirAll(dir, 0755); err != nil {
		return err
	}
	aurl := archiveURL.String()
	logger.Infof("downloading %s from %s", info.URL(), aurl)
	if disableSSLHostnameVerification {
		logger.Infof("SSL hostname verification disabled")
	}
	dl := downloader.New(aurl, dir, disableSSLHostnameVerification)
	defer dl.Stop()
	for {
		select {
		case <-abort:
			logger.Infof("download aborted")
			return fmt.Errorf("aborted")
		case st := <-dl.Done():
			if st.Err != nil {
				return st.Err
			}
			logger.Infof("download complete")
			defer st.File.Close()
			actualSha256, _, err := utils.ReadSHA256(st.File)
			if err != nil {
				return err
			}
			archiveSha256, err := info.ArchiveSha256()
			if err != nil {
				return err
			}
			if actualSha256 != archiveSha256 {
				return fmt.Errorf(
					"expected sha256 %q, got %q", archiveSha256, actualSha256,
				)
			}
			logger.Infof("download verified")
			if err := os.MkdirAll(d.path, 0755); err != nil {
				return err
			}
			return os.Rename(st.File.Name(), d.bundlePath(info))
		}
	}
}