compat handlers: add X-Registry-Auth header support

 * Support the `X-Registry-Auth` http-request header.

 * The content of the header is a base64 encoded JSON payload which can
   either be a single auth config or a map of auth configs (user+pw or
   token) with the corresponding registries being the keys.  Vanilla
   Docker, projectatomic Docker and the bindings are transparantly
   supported.

 * Add a hidden `--registries-conf` flag.  Buildah exposes the same
   flag, mostly for testing purposes.

 * Do all credential parsing in the client (i.e., `cmd/podman`) pass
   the username and password in the backend instead of unparsed
   credentials.

 * Add a `pkg/auth` which handles most of the heavy lifting.

 * Go through the authentication-handling code of most commands, bindings
   and endpoints.  Migrate them to the new code and fix issues as seen.
   A final evaluation and more tests is still required *after* this
   change.

 * The manifest-push endpoint is missing certain parameters and should
   use the ABI function instead.  Adding auth-support isn't really
   possible without these parts working.

 * The container commands and endpoints (i.e., create and run) have not
   been changed yet.  The APIs don't yet account for the authfile.

 * Add authentication tests to `pkg/bindings`.

Fixes: #6384
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/vendor/github.com/vbauerster/mpb/v5/bar_filler_spinner.go b/vendor/github.com/vbauerster/mpb/v5/bar_filler_spinner.go
new file mode 100644
index 000000000..d2cb2b726
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v5/bar_filler_spinner.go
@@ -0,0 +1,63 @@
+package mpb
+
+import (
+	"io"
+	"strings"
+	"unicode/utf8"
+
+	"github.com/vbauerster/mpb/v5/decor"
+	"github.com/vbauerster/mpb/v5/internal"
+)
+
+// SpinnerAlignment enum.
+type SpinnerAlignment int
+
+// SpinnerAlignment kinds.
+const (
+	SpinnerOnLeft SpinnerAlignment = iota
+	SpinnerOnMiddle
+	SpinnerOnRight
+)
+
+// DefaultSpinnerStyle is a slice of strings, which makes a spinner.
+var DefaultSpinnerStyle = []string{"⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"}
+
+type spinnerFiller struct {
+	frames    []string
+	count     uint
+	alignment SpinnerAlignment
+}
+
+// NewSpinnerFiller constucts mpb.BarFiller, to be used with *Progress.Add(...) *Bar method.
+func NewSpinnerFiller(style []string, alignment SpinnerAlignment) BarFiller {
+	if len(style) == 0 {
+		style = DefaultSpinnerStyle
+	}
+	filler := &spinnerFiller{
+		frames:    style,
+		alignment: alignment,
+	}
+	return filler
+}
+
+func (s *spinnerFiller) Fill(w io.Writer, reqWidth int, stat decor.Statistics) {
+	width := internal.WidthForBarFiller(reqWidth, stat.AvailableWidth)
+
+	frame := s.frames[s.count%uint(len(s.frames))]
+	frameWidth := utf8.RuneCountInString(frame)
+
+	if width < frameWidth {
+		return
+	}
+
+	switch rest := width - frameWidth; s.alignment {
+	case SpinnerOnLeft:
+		io.WriteString(w, frame+strings.Repeat(" ", rest))
+	case SpinnerOnMiddle:
+		str := strings.Repeat(" ", rest/2) + frame + strings.Repeat(" ", rest/2+rest%2)
+		io.WriteString(w, str)
+	case SpinnerOnRight:
+		io.WriteString(w, strings.Repeat(" ", rest)+frame)
+	}
+	s.count++
+}