working commit

authbas.go

@@ -1,24 +1,20 @@
 package client
 
 import (
-        "encoding/base64"
+	"encoding/base64"
 )
 
-
 type Authenticator interface {
-        MakeHeader(user, pass string) (key, value string, err error)
+	MakeHeader(user, pass string) (key, value string, err error)
 }
 
-type BasicAuthenticator struct {}
+type BasicAuthenticator struct{}
 
-func NewBasicAuthenticator() *BasicAuthenticator{
-        return &BasicAuthenticator{}
+func NewBasicAuthenticator() *BasicAuthenticator {
+	return &BasicAuthenticator{}
 }
 
-func (auth *BasicAuthenticator) MakeHeader(user, pass string) (string, string, error){
-        pair := base64.StdEncoding.EncodeToString([]byte(user + ":" + pass))
-        return "Autentification", "Basic " + pair, nil
+func (auth *BasicAuthenticator) MakeHeader(user, pass string) (string, string, error) {
+	pair := base64.StdEncoding.EncodeToString([]byte(user + ":" + pass))
+	return "Authorization", "Basic " + pair, nil
 }
-
-
-

blobexist.go

@@ -0,0 +1,59 @@
+package client
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"strconv"
+)
+
+func (cli *Client) BlobExists(ctx context.Context, rawref string) (bool, int64, error) {
+	var err error
+	var exist bool
+	var size int64
+
+	ref, err := NewReference(rawref)
+	if err != nil {
+		return exist, size, err
+	}
+	uri := ref.Blob()
+	user, pass := ref.Userinfo()
+
+	fmt.Println(uri)
+	req, err := http.NewRequestWithContext(ctx, http.MethodHead, uri, nil)
+	if err != nil {
+		return exist, size, err
+	}
+	req.Header.Set("User-Agent", cli.userAgent)
+	req.Header.Set("Accept", "*/*")
+
+	if cli.authenticator != nil {
+		authHeader, authKey, err := cli.authenticator.MakeHeader(user, pass)
+		if err != nil {
+			return exist, size, err
+		}
+		req.Header.Set(authHeader, authKey)
+	}
+
+	resp, err := cli.httpClient.Do(req)
+	if err != nil {
+		return exist, size, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode == http.StatusNotFound {
+		return exist, size, err
+	}
+	if resp.StatusCode != http.StatusOK {
+		err := fmt.Errorf("Unxected response code %s", resp.Status)
+		return exist, size, err
+	}
+	contentLength := resp.Header.Get("Content-Length")
+	size, err = strconv.ParseInt(contentLength, 10, 64)
+	if err != nil {
+		return exist, size, err
+	}
+
+	exist = true
+	return exist, size, err
+}

client.go

@@ -5,28 +5,59 @@ import (
 	"net/http"
 )
 
-
 type Client struct {
 	httpClient    *http.Client
-        authenticator  Authenticator
-        userAgent string
+	authenticator Authenticator
+	userAgent     string
 }
 
-func NewClient(skipTLSVerify bool) *Client {
-	transport := &http.Transport{
-		TLSClientConfig: &tls.Config{
-			InsecureSkipVerify: skipTLSVerify,
-		},
-	}
+func NewClient() *Client {
+	defaultTripper := NewDefaultTransport()
 	httpClient := &http.Client{
-		Transport: transport,
+		Transport: defaultTripper,
 	}
 	return &Client{
 		httpClient: httpClient,
-                userAgent: "ociClient/1.0",
+		userAgent:  "ociClient/1.0",
 	}
 }
 
 func (cli *Client) SetAuthenticator(auth Authenticator) {
-        cli.authenticator = auth
+	cli.authenticator = auth
+}
+
+func (cli *Client) SetTransport(transport http.RoundTripper) {
+	cli.httpClient.Transport = transport
+}
+
+type WrapTransport struct {
+	transport http.RoundTripper
+}
+
+func NewWrapTransport(transport http.RoundTripper) *WrapTransport {
+	return &WrapTransport{
+		transport: transport,
+	}
+}
+
+func (wrap *WrapTransport) RoundTrip(req *http.Request) (*http.Response, error) {
+	return wrap.transport.RoundTrip(req)
+}
+
+type DefaultTransport struct {
+	transport http.RoundTripper
+}
+
+func NewDefaultTransport() *DefaultTransport {
+	return &DefaultTransport{
+		transport: &http.Transport{
+			TLSClientConfig: &tls.Config{
+				InsecureSkipVerify: true,
+			},
+		},
+	}
+}
+
+func (wrap *DefaultTransport) RoundTrip(req *http.Request) (*http.Response, error) {
+	return wrap.transport.RoundTrip(req)
 }

client_test.go

@@ -0,0 +1,134 @@
+package client
+
+import (
+	"github.com/stretchr/testify/require"
+
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"math/rand"
+	"testing"
+	"time"
+)
+
+func TestClientGetManifest(t *testing.T) {
+	rawrefs := []string{
+		"mirror.gcr.io/alpine:3.20.0",
+		"mirror.gcr.io/alpine:sha256:29e5ba63e79337818e6c63cfcc68e2ab4e9ca483853b2de303bfbfba9372426c",
+	}
+	for _, rawref := range rawrefs {
+		cli := NewClient()
+		ctx, _ := context.WithTimeout(context.Background(), 10*time.Second)
+		exist, mime, man, err := cli.GetManifest(ctx, rawref)
+		require.NoError(t, err)
+		require.True(t, exist)
+
+		fmt.Printf("Type: %s\n", mime)
+		buffer := bytes.NewBuffer(nil)
+		err = json.Indent(buffer, man, " ", "    ")
+		require.NoError(t, err)
+		//fmt.Printf("%s\n", buffer.String())
+	}
+}
+
+func xxxTestClientManifestExists(t *testing.T) {
+	rawrefs := []string{
+		"mirror.gcr.io/alpine:3.20.0",
+		"mirror.gcr.io/alpine:sha256:29e5ba63e79337818e6c63cfcc68e2ab4e9ca483853b2de303bfbfba9372426c",
+	}
+	for _, rawref := range rawrefs {
+		cli := NewClient()
+		ctx, _ := context.WithTimeout(context.Background(), 10*time.Second)
+		exist, mime, size, csum, err := cli.ManifestExists(ctx, rawref)
+		require.NoError(t, err)
+		require.True(t, exist)
+
+		fmt.Printf("MIME: %s\n", mime)
+		fmt.Printf("Size: %d\n", size)
+		fmt.Printf("Sum: %s\n", csum)
+		fmt.Printf("Typ: %d\n", DigestType(csum))
+	}
+}
+
+func xxxTestClientBlobExists(t *testing.T) {
+	rawrefs := []string{
+		"mirror.gcr.io/alpine:sha256:3b8747b05489980f63da1d2b8e5a444c55777f69540394397b0bc1c76c3e41f2",
+	}
+	for _, rawref := range rawrefs {
+		cli := NewClient()
+		ctx, _ := context.WithTimeout(context.Background(), 10*time.Second)
+		exist, size, err := cli.BlobExists(ctx, rawref)
+		require.NoError(t, err)
+		require.True(t, exist)
+
+		fmt.Printf("Size: %d\n", size)
+	}
+}
+
+func xxxTestClientGetBlob(t *testing.T) {
+	rawrefs := []string{
+		"mirror.gcr.io/alpine:sha256:3b8747b05489980f63da1d2b8e5a444c55777f69540394397b0bc1c76c3e41f2",
+	}
+	for _, rawref := range rawrefs {
+		cli := NewClient()
+		ctx, _ := context.WithTimeout(context.Background(), 10*time.Second)
+		buffer := bytes.NewBuffer(nil)
+		exist, err := cli.GetBlob(ctx, rawref, buffer)
+		require.NoError(t, err)
+		require.True(t, exist)
+		fmt.Printf("Size: %d\n", len(buffer.Bytes()))
+	}
+}
+
+func TestClientGetUpload(t *testing.T) {
+	rawrefs := []string{
+		"mstore:mstore@localhost:1025/alpine:3.20.0",
+	}
+	for _, rawref := range rawrefs {
+		var err error
+		var loc string
+		{
+			cli := NewClient()
+			cli.SetAuthenticator(NewBasicAuthenticator())
+			ctx, _ := context.WithTimeout(context.Background(), 10*time.Second)
+			loc, err = cli.GetUpload(ctx, rawref)
+			require.NoError(t, err)
+			fmt.Printf("Location: %s\n", loc)
+		}
+		{
+
+			srcsize := 1024 + 145
+			srcdata := make([]byte, srcsize)
+			_, err = rand.Read(srcdata)
+			require.NoError(t, err)
+
+			src := bytes.NewReader(srcdata)
+			digest := SHA256Digest(srcdata)
+
+			cli := NewClient()
+			cli.SetAuthenticator(NewBasicAuthenticator())
+			ctx, _ := context.WithTimeout(context.Background(), 10*time.Second)
+			bloc, err := cli.PutUpload(ctx, rawref, src, loc, digest, int64(len(srcdata)))
+			require.NoError(t, err)
+			fmt.Printf("Location: %s\n", bloc)
+		}
+		{
+			srcsize := 1024 + 145
+			srcdata := make([]byte, srcsize)
+			_, err = rand.Read(srcdata)
+			require.NoError(t, err)
+
+			src := bytes.NewReader(srcdata)
+			//digest := SHA256Digest(srcdata)
+
+			cli := NewClient()
+			cli.SetAuthenticator(NewBasicAuthenticator())
+			ctx, _ := context.WithTimeout(context.Background(), 10*time.Second)
+			bloc, err := cli.PatchUpload(ctx, rawref, src, loc, int64(len(srcdata)))
+			require.NoError(t, err)
+			fmt.Printf("Location: %s\n", bloc)
+		}
+
+	}
+}

copyctx.go

@@ -0,0 +1,39 @@
+package client
+
+import (
+	"context"
+	"errors"
+	"io"
+)
+
+func Copy(ctx context.Context, writer io.Writer, reader io.Reader) (int64, error) {
+	var err error
+	var size int64
+	var halt bool
+	buffer := make([]byte, 1024*4)
+	for {
+		select {
+		case <-ctx.Done():
+			err = errors.New("Break copy by context")
+			break
+		default:
+		}
+		rsize, err := reader.Read(buffer)
+		if err == io.EOF {
+			err = nil
+			halt = true
+		}
+		if err != nil {
+			return size, err
+		}
+		wsize, err := writer.Write(buffer[0:rsize])
+		size += int64(wsize)
+		if err != nil {
+			return size, err
+		}
+		if halt {
+			break
+		}
+	}
+	return size, err
+}

copyctx_test.go

@@ -0,0 +1,28 @@
+package client
+
+import (
+	"github.com/stretchr/testify/require"
+
+	"bytes"
+	"context"
+	"fmt"
+	"math/rand"
+	"testing"
+)
+
+func TestCopy(t *testing.T) {
+	srcsize := 1024 + 145
+	srcdata := make([]byte, srcsize)
+	_, err := rand.Read(srcdata)
+	require.NoError(t, err)
+
+	src := bytes.NewReader(srcdata)
+	dst := bytes.NewBuffer(nil)
+
+	ctx := context.Background()
+	recsize, err := Copy(ctx, dst, src)
+	require.NoError(t, err)
+
+	fmt.Printf("Size: %d %d\n", recsize, srcsize)
+	require.Equal(t, int64(srcsize), recsize)
+}

delman.go

@@ -0,0 +1,49 @@
+package client
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+)
+
+func (cli *Client) DeleteManifest(ctx context.Context, rawref string) (bool, error) {
+	var err error
+	var exist bool
+
+	ref, err := NewReference(rawref)
+	if err != nil {
+		return exist, err
+	}
+	uri := ref.Manifest()
+	user, pass := ref.Userinfo()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodDelete, uri, nil)
+	if err != nil {
+		return exist, err
+	}
+	req.Header.Set("User-Agent", cli.userAgent)
+	req.Header.Set("Accept", "*/*")
+
+	if cli.authenticator != nil {
+		authHeader, authKey, err := cli.authenticator.MakeHeader(user, pass)
+		if err != nil {
+			return exist, err
+		}
+		req.Header.Set(authHeader, authKey)
+	}
+
+	resp, err := cli.httpClient.Do(req)
+	if err != nil {
+		return exist, err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode == http.StatusNotFound {
+		return exist, err
+	}
+	if resp.StatusCode != http.StatusOK {
+		err := fmt.Errorf("Unxected response code %s", resp.Status)
+		return exist, err
+	}
+	exist = true
+	return exist, err
+}

digest.go

@@ -4,7 +4,7 @@ import (
 	"crypto/sha256"
 	"crypto/sha512"
 	"encoding/hex"
-        "strings"
+	"strings"
 )
 
 func SHA256Digest(src []byte) string {
@@ -22,29 +22,28 @@ func SHA512Digest(src []byte) string {
 }
 
 const (
-        Undefined int = iota
-        SHA256
-        SHA512
+	Undefined int = iota
+	SHA256
+	SHA512
 )
 
-
 func DigestType(digest string) int {
-        var err error
-        var typ int
-        digest = strings.ToLower(digest)
-        digest = strings.TrimPrefix(digest, "sha256:")
-        digest = strings.TrimPrefix(digest, "sha512:")
-        decoded, err := hex.DecodeString(digest)
-        if err != nil {
-                        return Undefined
-        }
-        switch (len(decoded)) {
-                case 64:
-                        typ = SHA256
-                case 128:
-                        typ = SHA512
-                default:
-                        typ = Undefined
-        }
-        return typ
+	var err error
+	var typ int
+	digest = strings.ToLower(digest)
+	digest = strings.TrimPrefix(digest, "sha256:")
+	digest = strings.TrimPrefix(digest, "sha512:")
+	decoded, err := hex.DecodeString(digest)
+	if err != nil {
+		return Undefined
+	}
+	switch len(decoded) {
+	case 32:
+		typ = SHA256
+	case 64:
+		typ = SHA512
+	default:
+		typ = Undefined
+	}
+	return typ
 }

getblob.go

@@ -0,0 +1,63 @@
+package client
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"strconv"
+)
+
+func (cli *Client) GetBlob(ctx context.Context, rawref string, writer io.Writer) (bool, error) {
+	var err error
+	var exist bool
+
+	ref, err := NewReference(rawref)
+	if err != nil {
+		return exist, err
+	}
+	uri := ref.Blob()
+	user, pass := ref.Userinfo()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, uri, nil)
+	if err != nil {
+		return exist, err
+	}
+	req.Header.Set("User-Agent", cli.userAgent)
+	req.Header.Set("Accept", "*/*")
+
+	if cli.authenticator != nil {
+		authHeader, authKey, err := cli.authenticator.MakeHeader(user, pass)
+		if err != nil {
+			return exist, err
+		}
+		req.Header.Set(authHeader, authKey)
+	}
+
+	resp, err := cli.httpClient.Do(req)
+	if err != nil {
+		return exist, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode == http.StatusNotFound {
+		return exist, err
+	}
+	if resp.StatusCode != http.StatusOK {
+		err := fmt.Errorf("Unexpected response code %s", resp.Status)
+		return exist, err
+	}
+	contentLength := resp.Header.Get("Content-Length")
+	blobSize, err := strconv.ParseInt(contentLength, 10, 64)
+	if err != nil {
+		return exist, err
+	}
+
+	recSize, err := Copy(ctx, writer, resp.Body)
+	if blobSize != recSize {
+		err := fmt.Errorf("Mismatch declared and actual body size, %d and %d", blobSize, recSize)
+		return exist, err
+	}
+	exist = true
+	return exist, err
+}

getman.go

@@ -4,9 +4,9 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"io"
 	"net/http"
 	"strconv"
+	"strings"
 )
 
 func (cli *Client) GetManifest(ctx context.Context, rawref string) (bool, string, []byte, error) {
@@ -20,13 +20,23 @@ func (cli *Client) GetManifest(ctx context.Context, rawref string) (bool, string
 		return exist, mime, man, err
 	}
 	uri := ref.Manifest()
+	user, pass := ref.Userinfo()
 
 	req, err := http.NewRequestWithContext(ctx, http.MethodGet, uri, nil)
 	if err != nil {
 		return exist, mime, man, err
 	}
 	req.Header.Set("User-Agent", cli.userAgent)
-        req.Header.Set("Accept", "*/*")
+	req.Header.Set("Accept", "*/*")
+
+	if cli.authenticator != nil {
+		authHeader, authKey, err := cli.authenticator.MakeHeader(user, pass)
+		if err != nil {
+			return exist, mime, man, err
+		}
+		req.Header.Set(authHeader, authKey)
+	}
+
 	resp, err := cli.httpClient.Do(req)
 	if err != nil {
 		return exist, mime, man, err
@@ -51,12 +61,35 @@ func (cli *Client) GetManifest(ctx context.Context, rawref string) (bool, string
 		return exist, mime, man, err
 	}
 	buffer := bytes.NewBuffer(nil)
-	recSize, err := io.Copy(buffer, resp.Body)
+	recSize, err := Copy(ctx, buffer, resp.Body)
 	if manSize != recSize {
-		err := fmt.Errorf("Mismatch declared and actual body size")
+		err := fmt.Errorf("Mismatch declared and actual body size, %d and %d", manSize, recSize)
 		return exist, mime, man, err
 	}
-        man = buffer.Bytes()
+	man = buffer.Bytes()
+
+	csum := resp.Header.Get("Docker-Content-Digest")
+	if csum == "" {
+		err := fmt.Errorf("Empty digest declaration")
+		return exist, mime, man, err
+	}
+	csum = strings.ToLower(csum)
+	switch DigestType(csum) {
+	case SHA256:
+		if csum != SHA256Digest(man) {
+			err := fmt.Errorf("Mismatch digest and actual declaration")
+			return exist, mime, man, err
+		}
+	case SHA512:
+		if csum != SHA256Digest(man) {
+			err := fmt.Errorf("Mismatch digest and actual declaration")
+			return exist, mime, man, err
+		}
+	default:
+		err := fmt.Errorf("Unknown digest type: %s", csum)
+		return exist, mime, man, err
+	}
+
 	exist = true
 	return exist, mime, man, err
 }

getman_test.go

@@ -1,34 +0,0 @@
-package client
-
-import (
-        "github.com/stretchr/testify/require"
-
-        "testing"
-        "fmt"
-        "time"
-        "context"
-        "encoding/json"
-        "bytes"
-)
-
-
-func TestClientGetManigest(t *testing.T) {
-        rawrefs := []string{
-                "mirror.gcr.io/alpine:3.20.0",
-                "mirror.gcr.io/alpine:sha256:29e5ba63e79337818e6c63cfcc68e2ab4e9ca483853b2de303bfbfba9372426c",
-        }
-        for _, rawref := range rawrefs {
-                cli := NewClient(true)
-                ctx, _ := context.WithTimeout(context.Background(), 10 * time.Second)
-                exist, mime, man, err := cli.GetManifest(ctx, rawref)
-                require.NoError(t, err)
-                require.True(t, exist)
-
-                fmt.Printf("MIME: %s\n", mime)
-                buffer := bytes.NewBuffer(nil)
-                err = json.Indent(buffer, man, " ", "    ")
-                require.NoError(t, err)
-                fmt.Printf("%s\n", buffer.String())
-        }
-}
-

getupload.go

@@ -0,0 +1,51 @@
+package client
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+)
+
+func (cli *Client) GetUpload(ctx context.Context, rawref string) (string, error) {
+	var err error
+	var loc string
+
+	ref, err := NewReference(rawref)
+	if err != nil {
+		return loc, err
+	}
+	uri := ref.Upload()
+	user, pass := ref.Userinfo()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, uri, nil)
+	if err != nil {
+		return loc, err
+	}
+	req.Header.Set("User-Agent", cli.userAgent)
+	req.Header.Set("Accept", "*/*")
+
+	if cli.authenticator != nil {
+		authHeader, authKey, err := cli.authenticator.MakeHeader(user, pass)
+		if err != nil {
+			return loc, err
+		}
+		req.Header.Set(authHeader, authKey)
+	}
+
+	resp, err := cli.httpClient.Do(req)
+	if err != nil {
+		return loc, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusAccepted {
+		err := fmt.Errorf("Unxected response code %s", resp.Status)
+		return loc, err
+	}
+	loc = resp.Header.Get("Location")
+	if loc == "" {
+		err := fmt.Errorf("Empty location declaration")
+		return loc, err
+	}
+	return loc, err
+}

manexist.go

@@ -0,0 +1,70 @@
+package client
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"strconv"
+)
+
+func (cli *Client) ManifestExists(ctx context.Context, rawref string) (bool, string, int64, string, error) {
+	var err error
+	var exist bool
+	var mime string
+	var size int64
+	var csum string
+
+	ref, err := NewReference(rawref)
+	if err != nil {
+		return exist, mime, size, csum, err
+	}
+	uri := ref.Manifest()
+	user, pass := ref.Userinfo()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodHead, uri, nil)
+	if err != nil {
+		return exist, mime, size, csum, err
+	}
+	req.Header.Set("User-Agent", cli.userAgent)
+	req.Header.Set("Accept", "*/*")
+
+	if cli.authenticator != nil {
+		authHeader, authKey, err := cli.authenticator.MakeHeader(user, pass)
+		if err != nil {
+			return exist, mime, size, csum, err
+		}
+		req.Header.Set(authHeader, authKey)
+	}
+
+	resp, err := cli.httpClient.Do(req)
+	if err != nil {
+		return exist, mime, size, csum, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode == http.StatusNotFound {
+		return exist, mime, size, csum, err
+	}
+	if resp.StatusCode != http.StatusOK {
+		err := fmt.Errorf("Unxected response code %s", resp.Status)
+		return exist, mime, size, csum, err
+	}
+	contentLength := resp.Header.Get("Content-Length")
+	size, err = strconv.ParseInt(contentLength, 10, 64)
+	if err != nil {
+		return exist, mime, size, csum, err
+	}
+	mime = resp.Header.Get("Content-Type")
+	if mime == "" {
+		err := fmt.Errorf("Empty MIME type declaration")
+		return exist, mime, size, csum, err
+	}
+	csum = resp.Header.Get("Docker-Content-Digest")
+	if csum == "" {
+		err := fmt.Errorf("Empty digest declaration")
+		return exist, mime, size, csum, err
+	}
+
+	exist = true
+	return exist, mime, size, csum, err
+}

mimetyp.go

@@ -0,0 +1,6 @@
+package client
+
+const (
+	MediaTypeDDMLv2 = "application/vnd.docker.distribution.manifest.list.v2+json"
+	MediaTypeDDMv2  = "application/vnd.docker.distribution.manifest.v2+json"
+)

pathupload.go

@@ -0,0 +1,54 @@
+package client
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"strconv"
+)
+
+func (cli *Client) PatchUpload(ctx context.Context, rawref string, src io.Reader, uploc string, size int64) (string, error) {
+	var err error
+	var ouloc string
+
+	ref, err := NewReference(rawref)
+	if err != nil {
+		return ouloc, err
+	}
+	uri, err := ref.Patch(uploc)
+	if err != nil {
+		return ouloc, err
+	}
+	user, pass := ref.Userinfo()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodPatch, uri, src)
+	if err != nil {
+		return ouloc, err
+	}
+	req.Header.Set("User-Agent", cli.userAgent)
+	req.Header.Set("Content-Type", "application/octet-stream")
+	req.Header.Set("Content-Length", strconv.FormatInt(size, 10))
+	if cli.authenticator != nil {
+		authHeader, authKey, err := cli.authenticator.MakeHeader(user, pass)
+		if err != nil {
+			return ouloc, err
+		}
+		req.Header.Set(authHeader, authKey)
+	}
+	resp, err := cli.httpClient.Do(req)
+	if err != nil {
+		return ouloc, err
+	}
+	resp.Body.Close()
+	if resp.StatusCode != http.StatusAccepted {
+		err = fmt.Errorf("Upload not accepted, code %d", resp.StatusCode)
+		return ouloc, err
+	}
+	ouloc = resp.Header.Get("Location")
+	if ouloc == "" {
+		err := fmt.Errorf("Empty blob location declaration")
+		return ouloc, err
+	}
+	return ouloc, err
+}

putman.go

@@ -15,7 +15,7 @@ func (cli *Client) PutManifest(ctx context.Context, rawref string, man []byte, m
 		return err
 	}
 	uri := ref.Manifest()
-        user, pass := ref.Userinfo()
+	user, pass := ref.Userinfo()
 
 	buffer := bytes.NewBuffer(man)
 	req, err := http.NewRequestWithContext(ctx, http.MethodPut, uri, buffer)
@@ -25,19 +25,19 @@ func (cli *Client) PutManifest(ctx context.Context, rawref string, man []byte, m
 	req.Header.Set("User-Agent", cli.userAgent)
 	req.Header.Set("Docker-Content-Digest", SHA256Digest(man))
 	req.Header.Set("Content-Type", mime)
-        if cli.authenticator != nil {
-                authHeader, authKey, err := cli.authenticator.MakeHeader(user, pass)
-                if err != nil {
-                        return err
-                }
-                req.Header.Set(authHeader, authKey)
-        }
+	if cli.authenticator != nil {
+		authHeader, authKey, err := cli.authenticator.MakeHeader(user, pass)
+		if err != nil {
+			return err
+		}
+		req.Header.Set(authHeader, authKey)
+	}
 	resp, err := cli.httpClient.Do(req)
 	if err != nil {
 		return err
 	}
 	resp.Body.Close()
-        if resp.StatusCode != http.StatusAccepted {
+	if resp.StatusCode != http.StatusAccepted {
 		err = fmt.Errorf("Manifest not accepted, code %d", resp.StatusCode)
 		return err
 	}

putupload.go

@@ -0,0 +1,54 @@
+package client
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"strconv"
+)
+
+func (cli *Client) PutUpload(ctx context.Context, rawref string, src io.Reader, uploc, digest string, size int64) (string, error) {
+	var err error
+	var bloc string
+
+	ref, err := NewReference(rawref)
+	if err != nil {
+		return bloc, err
+	}
+	uri, err := ref.Put(uploc, digest)
+	if err != nil {
+		return bloc, err
+	}
+	user, pass := ref.Userinfo()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodPut, uri, src)
+	if err != nil {
+		return bloc, err
+	}
+	req.Header.Set("User-Agent", cli.userAgent)
+	req.Header.Set("Content-Type", "application/octet-stream")
+	req.Header.Set("Content-Length", strconv.FormatInt(size, 10))
+	if cli.authenticator != nil {
+		authHeader, authKey, err := cli.authenticator.MakeHeader(user, pass)
+		if err != nil {
+			return bloc, err
+		}
+		req.Header.Set(authHeader, authKey)
+	}
+	resp, err := cli.httpClient.Do(req)
+	if err != nil {
+		return bloc, err
+	}
+	resp.Body.Close()
+	if resp.StatusCode != http.StatusCreated {
+		err = fmt.Errorf("Upload not accepted, code %d", resp.StatusCode)
+		return bloc, err
+	}
+	bloc = resp.Header.Get("Location")
+	if bloc == "" {
+		err := fmt.Errorf("Empty blob location declaration")
+		return bloc, err
+	}
+	return bloc, err
+}

refer.go

@@ -1,55 +0,0 @@
-package client
-
-import (
-	"errors"
-	"net/url"
-	"strings"
-)
-
-type Reference struct {
-	urlobj     *url.URL
-	user, pass string
-	repo, tag  string
-}
-
-func NewReference(rawref string) (*Reference, error) {
-	ref := &Reference{}
-	if !strings.Contains(rawref, "://") {
-		rawref = "https://" + rawref
-	}
-	urlobj, err := url.Parse(rawref)
-	if err != nil {
-		return ref, err
-	}
-	if urlobj.User != nil {
-		ref.user = urlobj.User.Username()
-		ref.pass, _ = urlobj.User.Password()
-		urlobj.User = nil
-	}
-	repotag := strings.SplitN(urlobj.Path, ":", 2)
-	if len(repotag) != 2 {
-		err = errors.New("Incorrect repo")
-		return ref, err
-	}
-        ref.urlobj = urlobj
-	ref.urlobj.Path = ""
-	ref.repo = repotag[0]
-	ref.tag = repotag[1]
-	ref.urlobj = urlobj
-
-	return ref, err
-}
-
-func (ref *Reference) Manifest() string {
-	curl := ref.urlobj.JoinPath("/v2", ref.repo, "/manifests", ref.tag)
-	return curl.String()
-}
-
-func (ref *Reference) Blob(digest string) string {
-	curl := ref.urlobj.JoinPath("/v2", ref.repo, "/blobs", digest)
-	return curl.String()
-}
-
-func (ref *Reference) Userinfo() (string, string) {
-        return ref.user, ref.pass
-}

referer.go

@@ -0,0 +1,100 @@
+package client
+
+import (
+	"errors"
+	"net/url"
+	"strings"
+)
+
+type Reference struct {
+	urlobj     *url.URL
+	user, pass string
+	repo, tag  string
+}
+
+func NewReference(rawref string) (*Reference, error) {
+	ref := &Reference{}
+	if !strings.Contains(rawref, "://") {
+		rawref = "https://" + rawref
+	}
+	urlobj, err := url.Parse(rawref)
+	if err != nil {
+		return ref, err
+	}
+	if urlobj.User != nil {
+		ref.user = urlobj.User.Username()
+		ref.pass, _ = urlobj.User.Password()
+		urlobj.User = nil
+	}
+	repotag := strings.SplitN(urlobj.Path, ":", 2)
+	if len(repotag) != 2 {
+		err = errors.New("Incorrect repo")
+		return ref, err
+	}
+	ref.urlobj = urlobj
+	ref.urlobj.Path = "/"
+	ref.repo = repotag[0]
+	ref.tag = repotag[1]
+	ref.urlobj = urlobj
+
+	return ref, err
+}
+
+func (ref *Reference) Manifest() string {
+	curl := ref.urlobj.JoinPath("/v2", ref.repo, "/manifests", ref.tag)
+	return curl.String()
+}
+
+func (ref *Reference) Blob() string {
+	curl := ref.urlobj.JoinPath("/v2", ref.repo, "/blobs", ref.tag)
+	return curl.String()
+}
+
+func (ref *Reference) Upload() string {
+	curl := ref.urlobj.JoinPath("/v2", ref.repo, "/blobs/uploads/")
+	return curl.String()
+}
+
+func (ref *Reference) Patch(loc string) (string, error) {
+	var curl *url.URL
+	var out string
+	var err error
+
+	if strings.Contains(loc, "://") {
+		curl, err = url.Parse(loc)
+		if err != nil {
+			return out, err
+		}
+	} else {
+		curl = ref.urlobj.JoinPath(loc)
+	}
+	out = curl.String()
+	return out, err
+}
+
+func (ref *Reference) Put(loc, digest string) (string, error) {
+	var curl *url.URL
+	var out string
+	var err error
+	if strings.Contains(loc, "://") {
+		curl, err = url.Parse(loc)
+		if err != nil {
+			return out, err
+		}
+	} else {
+		curl = ref.urlobj.JoinPath(loc)
+	}
+	query := curl.Query()
+	query.Set("digest", digest)
+	curl.RawQuery = query.Encode()
+	out = curl.String()
+	return out, err
+}
+
+func (ref *Reference) Tag() string {
+	return ref.tag
+}
+
+func (ref *Reference) Userinfo() (string, string) {
+	return ref.user, ref.pass
+}